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If the temperature is high, if the tractor is not used properly, it will increase the wear of parts and shorten its service life. Therefore, the following matters should be paid attention to when using a tractor in summer:

(1) Select the appropriate grade of engine oil. Generally, high-grade oil should be selected to prevent insufficient oil viscosity and increase the wear of parts. In the south, No. 14 diesel oil is generally used, and in the north, No. 11 diesel oil is generally used.

(2) Make sure to choose the load, and relieve any work that exceeds the load. For a tractor that runs for a long time, stop in the middle to check whether the tire temperature is too high. If the temperature is too high, the car should be parked in the shade to slowly dissipate heat. It is not allowed to quickly cool the tires with cold water to avoid damage.

(3) Add cooling water in time. Soft water should be used for cooling water to reduce scale formation. When the diesel engine is at high temperature and lacks water, it is strictly forbidden to add cooling water suddenly to prevent the cylinder liner, cylinder head, etc. from bursting or deforming.

(4) When the tractor is running, pay attention to check the inflation pressure of the tires. The inflation pressure of summer tires should generally be 2~3% lower than the standard pressure. When parking, the tires should avoid exposure to strong sunlight to prevent the tires from overheating and bursting.

(5) Clean the cooling system scale in time. In summer, the machine heats up quickly, the water tank is easy to open the pot, and it is easier to generate scale. Excessive scale will affect the heat dissipation effect and cause the temperature of the diesel engine to be too high. Therefore, in summer, attention should be paid to removing scale in time.

Do you know the difference between a miniature walk-behind and a 4 wheels mini tractor? Is there anything I should pay attention to when using a 4 wheels mini tractor? Today, Weifang Jinpuruien made a brief analysis of the common problems of 4 wheels mini tractors with years of experience in the production and supply of 4 wheels mini tractors, hoping to inspire everyone.

Micro walk-behind refers to a miniature walk-behind tractor with engine power ranging from 22 to 11.0 kilowatts (3 to 15 horsepower), and the chassis is equipped with 2 driving wheels to maintain stability when driving by manpower. Wheel, the operator can ride on the operation. The miniature handrail and miniature four-wheel all use miniature oil-powered engines in structure, and the transmission parts and electrical equipment are basically the same. However, the steering system, walking system and manipulation methods are different.

The 4 wheels mini tractor has the advantages of comfortable driving, reliable operation, smooth driving, good stability and safe transportation, while the miniature walk-behind tractor has the advantages of simple structure, flexible steering and good field passability, but the arrangement of its operating mechanism is not complete. Reasonable, laborious operation, imperfect braking system, severe vibration, poor visibility, and therefore poor operating safety.

Small 4 wheel drive tractor is a self-propelled power machine used for pulling and driving work machinery to complete various mobile operations. What problems have you encountered while using the tractor? The following is the maintenance and repair method of the small 4 wheel drive tractor prepared by JiuZhi for everyone. We hope you will not be at a loss when the tractor fails during operation.

First, the brake drum has abnormal noise

When the small 4 wheel drive tractor brakes, there is a loud smashing sound in the brake drum. The operator immediately stops the car. After disassembly and inspection, it is found that the brake shoe return spring is very soft, the brake shoe is partially burned, and the rivet is loose. , the seat friction plate is broken, the reason for the failure is that the quality of the friction plate riveting is poor; the second is the frequent emergency braking; the third is that the assembly is not clean and the sand is mixed. After riveting new brake shoes, replacing the return spring and accumulating, eliminating the impurities in the brake, after special configuration, do not put your foot on the brake pedal when not braking: avoid emergency braking and keep the correct brake It has been used for more than a year, the braking is good, and there is no abnormal noise.

Second, the brake drum is hot

The small 4 wheel drive tractor did not work for a long time, and found that the brakes were very hot, and it was overloaded when the empty car went uphill. After inspection, the reason is: the driver adjusted the brake too much for driving safety, and the free travel of the brake pedal was almost zero. In this way, not only the engine power is consumed during driving, but also the wear of the brake band is accelerated, causing the brake drum to heat up.

Third, the steering wheel is idling

When the small 4 wheel drive tractor was practicing as a trainer, we found that the guide wheel and the steering wheel could not operate synchronously. After making a right turn, when turning left or returning to the positive direction, the steering wheel is idling, and the guide wheel is not deflected accordingly, and the right turn is flexible, and the left turn is very slow. Due to long-term use, the keys and keyways are severely worn, and the turbine shaft rotates under the control of the steering wheel during steering, but the steering arm does not swing with it, so that the steering force cannot be reliably transmitted between the steering wheel and the guide wheel, resulting in the steering wheel idling. . We properly trimmed and expanded the keyway, installed corresponding flat keys, assembled and tested the car, and the steering returned to normal.

Fourth, the clutch release bearing is heated or damaged

The clutch release bearing of small 4 wheel drive tractor is a sealed one-way thrust ball bearing. The design requires only a small axial thrust, and generally does not bear radial force. During work, the release bearing rotates with the clutch shell. After parking, the release bearing feels soupy when touched by hand. The reason is that the clutch has no separation gap (due to improper adjustment or failure to adjust the gap in time after the clutch wears out), so that the release bearing follows. turn the release lever. This not only affects the normal operation of the clutch, but also causes the release bearing to heat up, causing damage to it for a long time. It should be adjusted as required to keep the normal clearance between the release lever and the release bearing.

A four-wheel tractor is a mechanical device that relies on the power of an internal combustion engine to travel through a transmission system. Do you know what factors affect the driving of a four-wheel tractor? Below, Jinpuruien briefly analyzes the driving factors of four-wheel tractors for sale from the aspects of rolling resistance, traction resistance, driving force and adhesion.

rolling resistance

The rolling resistance of a tractor is mainly caused by the deformation of the tires and soil. Under the action of the weight of the tractor, the tires are flattened and the soil is compacted. During the rolling process of the wheel, the parts of the tire that are in contact with the ground in the circumferential direction of the circle are successively flattened and deformed, and the front of the wheel is pressed higher than the soil, so that the soil is pressed down and the soil is deformed to form a rut, which is an obstacle. Rolling resistance of the wheel rolling forward.

There are many factors that affect the rolling resistance, mainly related to factors such as the firmness of the ground and the magnitude of the vertical load. For the same tractor, if the ground conditions are different, its rolling resistance is also different. For example, when the rolling resistance is small when driving on asphalt, cement or dry hard ground, the traction force of the tractor is large. The greater the weight, the greater the deformation of the soil in the vertical direction and the greater the rolling resistance. Generally speaking, reducing the deformation of the tire itself and the deformation in the vertical direction of the soil is beneficial to reduce the rolling resistance.

traction resistance

Traction resistance is the resistance to be overcome by the tractor to drive the agricultural machinery to operate, and it is equal to the traction force transmitted by the tractor to the agricultural machinery through the connecting device. Since traction is equal to driving minus rolling resistance, increasing driving force and reducing rolling resistance is an effective measure to improve traction.

driving force

It is the horizontal reaction force of the road surface to the driving wheels. Therefore, the size of the driving torque Mk transmitted by the internal combustion engine to the driving wheels through the transmission system indicates that the larger the driving force Pk of the tractor is. But since Mk is determined by the power of the internal combustion engine, Pk is also limited by the power of the internal combustion engine. At the same time, Pk is limited by soil conditions and cannot be increased indefinitely, because when the reaction force of the soil, that is, the driving force Pk, increases to a certain level, the soil is destroyed, the driving wheel slips severely, and the driving force Pk cannot be increased any more. We call the maximum reaction force the soil can produce on the drive wheel "adhesion".

adhesion

It reflects the ability to generate the maximum driving force between the driving force and the soil. There are many factors affecting adhesion, mainly related to ground conditions, tire pressure, size, pattern and the magnitude of the vertical load acting on the tire. For tractors, under certain soil conditions, reducing the tire pressure within a certain range, increasing the tire bearing area, improving the gripping ability of the wheels to the soil, and increasing the adhesion weight of the wheels, etc., are all conducive to improving the attachment of the tractor. Focus on the widespread use of low pressure tires on tractors.

Electric miniature road rollers are favored by the majority of enterprises because of their convenient operation, flexibility, high efficiency, wide application and low price, but the high failure rate of some products in use is also a problem that many units have been troubled by. Weifang Jinpuruien technicians remind users of the precautions for the use of electric miniature road rollers.

Electric miniature road rollers must achieve "three in place"

1. The new run-in is in place. Many people think that running-in is delaying time and wasting oil, which is really "uneconomical"; some people don't directly run at high speed, thinking that 2 to 3 hours of idling running-in is enough. According to experts, running-in is a step-by-step process, and it must be carried out from low gas speed, low load, and low load to high speed, high-grade, and large load. Its purpose is to lay the foundation for the normal use of the machine and prolong the life of the part by increasing the load slowly and gradually under good technical conditions and lubricating conditions to parts with rough surfaces. Therefore, enterprises must strictly follow the requirements of the specification in terms of use.

2. The operation method is in place. If the operation method is not in place, it is easy to cause some troubles. Operation, first of all to avoid overloading for a long time. Working on the road and tough sites, spotting a smoke machine, downshift immediately. When the road work is transferred, it must be done: one stop, two look, three observation. Strictly follow the operating procedures. Second, it is found that the sound of the machine is not correct during operation. After the sound stops, troubleshooting can be restarted; various gap adjustments are often checked frequently.

3. Maintain in place. Because the working environment of electric miniature road rollers is not good, maintenance is particularly important. In the work, due to the mutual friction and vibration of parts, oil, mud, water, unavoidable, wear parts, loose joints, corrosion, deterioration of aging conditions, so, tractor, rotary tiller technical strength, fuel consumption increases, wear, failure keep reappearing. Weakness of the machine, difficult to start, it is typical maintenance and not enough to cause failure.

In order to avoid the above situation, we must strictly enforce the "prevention is better than cure, keep repairing" maintenance system. Maintenance must be strictly in accordance with the time and content, in order to avoid the quality of fuel oil and lubricating oil. As long as "new running-in, operation method and maintenance" are in place, its performance can be improved, and efficient, high-quality, low-consumption, and safe service production can be achieved.

For mining electric miniature loader drivers, they are faced with complex mining tasks every day. A little carelessness is likely to cause a rollover accident or damage to surrounding facilities, which will not only affect the normal construction, but also carry out a certain amount of work. Compensation, then, how can we reduce unnecessary losses? Correct equipment operation skills of mine electric miniature loader have become particularly important. Today, Weifang Jinpuruien will share with you some safe operation skills of mine electric miniature loader.

Mining electric miniature loader is a special operation equipment, so the driver of the mining electric miniature loader must obtain the loader driving certificate certified by the relevant state department before driving. During the driving process, the driver should strictly follow the "equipment operation" the driving rules in the Maintenance Manual.

Those who drive the electric mine loader in the workshop need to know the surrounding conditions and the safe range of possible movement before driving. They should drive slowly, avoid rapid and large movements, and pay attention to the guidance and prompts of people outside the vehicle at all times. Before driving a loader outdoors, it is necessary to understand the safety range of the equipment, especially when there are two or more sets of test machines at the same time, the drivers should agree with each other on the range and driving route of their respective test sites to avoid accidents caused by confusion.

When the electric sweeper tricycle is first used, it is necessary to observe the side brush and the main brush. The bristles of the side brush and the main brush are very long. Generally, the position of the side brush and the main brush of the sweeper is very high. After a period of use, the bristles of the sweeper will wear out, and the cleaning effect of the sweeper will decrease. Therefore, our operators should make some minor adjustments to the position of the brushes. We should lower the brush of the sweeper a little, but we should pay attention to the position of the drop, not too much, as long as we can guarantee the cleaning effect of the sweeper.

It should be noted that when we replace the new main brush and side brush of the sweeper, we should readjust the height of the brushes, because the bristles of the new main brush and side brush of the sweeper are relatively long, so we should drive the sweeper. The main and side brushes of the car are adjusted to a relatively high position, otherwise the new brushes will quickly wear out badly.

Electric sweeper tricycle is a cleaning machine that is operated by a single person and driven by battery DC for efficient cleaning operations. It has been widely used in outdoor cleaning in parks, sanitation, cleaning companies, property management companies and other places. Due to the rising labor cost, electric sweeper tricycles are popular in the market due to significant labor savings. Do you know what are the reasons why electric floor sweeper tricycles raise ash?

1. Dust is raised on the side brush. We can install a vacuum cleaner or a water spray device on the side brush of the electric sweeper.

2. The lower part of the machine raises dust, which is mainly caused by the blockage of the filter screen, the damage of the dust-retaining skirt around the main brush or the failure to install it in place.

3. Dust is raised in the garbage can, which may be caused by the blockage of the filter or the damage of the sealing ring around the garbage can.

4. The upper part of the machine raises dust, which is generally caused by the damage of the filter screen or the failure of the filter screen to be installed in place. In addition, there is another situation that the customer's use problem is that the vacuum switch of the machine is not turned on, or the vacuum motor insurance is not turned on.

With the acceleration of urbanization construction, the market demand for construction machinery is also quietly changing. Electric miniature excavators suitable for farmland, community construction, urban pipeline laying, and material handling operations have attracted more and more attention in the industry, and have become many leading construction machinery companies. One of the products of the strategic development. Today, Jinpuruien takes you to see the difference between crawler-type and tire-type miniature excavators.

The difference between crawler-type and tire-type miniature excavators

Wheeled excavators are easy to move, mainly for small projects in the city, mostly for municipal use. Do not work in very soft places. The main purpose of the wheeled type is not as wide as the crawler type. The use of the wheeled excavator is affected by the environment and has certain limitations. It can only do a little work. Crawler excavators cannot drive on the road, but they can work in muddy places without trapping the machine. The machinery is also larger and the efficiency is higher than that of the wheeled excavator. There are differences and connections with crawler hydraulic excavators.

It mainly depends on what occasion you use it, and each has its own advantages, but now more and more people really prefer crawler excavators. Although the mobility of the crawler excavator is almost the same, if it is long-distance transportation, there is no need to use the wheels of the wheeled excavator at all, and there is a special transport vehicle; and if it is walking on the construction site, the crawler excavator may be better.

The wheeled action is not as fast as the crawler, and the rotation is not as large as the crawler. The wheeled type can travel on the road, but the crawler can't, which is more convenient for the wheeled type. But the crawler can work on the mountain, not to mention the wheeled type. In addition, the wheeled power and passability are not as good as the crawler. The crawler can go up the right-angle slope, and it is not easy to be restricted by the mud.

In terms of road maintenance, electric miniature road rollers are indispensable, construction machinery that is used a lot, and we all know that it can make the road construction more smooth. However, it is very likely that some faults will occur during the use, such as when parking, which will cause damage to the overall operation of the machine. In order to avoid affecting the subsequent use of the equipment, Jinpuruien will teach you several parking skills for electric miniature raceway construction rollers.

Parking the electric miniature road roller is also technical. It is precisely because it has such an important role. In actual use, we should pay more attention to the operation matters related to the electric miniature road roller, so that we can make better use of its advantages. Do auxiliary work. In addition to paying attention to the relevant gear shifting and construction environment during operation, it is also necessary to pay attention to the stopping and placement of equipment after a construction stage is completed.

The parking position should be stable. When the electric miniature road roller stops running, we need to consider the relevant placement matters - this seemingly simple step will not only have an impact on the next stage of work if the operation is not careful, but also may affect the electric miniature road roller. cause definite damage. Therefore, when parking, you must choose a flat and stable place to prevent other external forces or inadvertent operations from causing some safety accidents.

Precautions for parking on slopes. Generally speaking, electric miniature rollers cannot be parked on slopes, which is a great "threat" for later operation and related safety protection. But sometimes due to other reasons or construction needs, we need to park the electric mini-roller on the slope. At this time, relevant protective measures must be taken in place. The nailing of the wooden piles must be firm and solid. If it is raining and snowing, etc. If you park in the weather or in winter, you should also take corresponding anti-freezing and anti-skid measures.

With the continuous advancement and development of science and technology and the improvement of the overall national quality, more and more attention is paid to the ecological environment. Therefore, the recycling of waste wood has developed into a green environmental protection industry, and the excellent equipment in the wood energy saving and environmental protection industry is the wood chipper. Today Jinpuruien takes you to know about this kind of environmental protection equipment - hydraulic driven wood chipper.

The feeding port of the wood chipper adopts self-priming feeding, which ensures safe production forever, replacing the direct feeding of the traditional pulverizer. The pulley is driven by the motor to make the rotor of the pulverizer run at a high speed. At the same time, the rotor generates a high-speed air flow and rotates in the direction of the blade. The material is accelerated in the air flow and repeatedly hits and cuts. At the same time, it is subjected to three kinds of pulverization. The air flow enters the analyzer for analysis. Since it is affected by the centrifugal force of the rotor of the analyzer, it is also affected by the centrifugal force of the air flow. Therefore, when the centrifugal force is greater than the centripetal force, the fine particles enter the powder collector with the air flow for collection, and the coarse particles enter the centrifugal force for repeated crushing. The chamber continues to grind until the fineness you are satisfied with is reached.

The wood chipper smashes the unused waste wood, and the wood is pulverized into sawdust and wood powder particles through the high-speed rotation of the internal blade. These sawdust and wood powder are the main raw materials used in the manufacture of synthetic boards, and also provide the demand for building materials, as well as the raw materials for the production of organic fertilizers and new combustion energy. In this way, it is not only environmentally friendly but also saves production costs, making these waste wood materials play their own effective value, thereby providing high-tech production guarantees for the waste wood recycling industry and contributing to the cause of environmental protection.

1. The battery cannot be stored without power. The state of power deficit means that the battery is not charged in time after the power is used up, which will easily lead to the salinization of sulfuric acid, so that the lead sulfate crystals adhere to the electrode plate of the battery and block the channel of ions, which will cause If it cannot be charged, the capacity of the battery will decrease. The longer the idle time is in a power-loss state, the more serious the battery damage will be. When the battery is not in use, it should be charged once a month to prolong the battery life.

2. The battery of the electric tricycle should be inspected regularly during use. If the continuation mileage of the electric bicycle suddenly drops by more than ten kilometers in a short period of time, it is very likely that at least one battery in the battery pack is broken and extremely Short circuit phenomena such as plate softening and plate active material falling off. At this time, you should go to a professional battery repair agency for inspection, repair or matching.

3. Do not discharge high current. When starting, carrying people, or going uphill, it is best to use pedals to assist electric bicycles to avoid instantaneous high current discharge. High current discharge can easily lead to the crystallization of lead sulfate, which damages the physical properties of the battery plate.

4. To master the charging time, under normal circumstances, the battery is charged at night, and the average charging time is about 8 hours. If it is shallowly discharged (the mileage after charging is very short), the battery will be fully charged soon, and if you continue to charge, there will be an overcharge phenomenon, which will cause the battery to lose water, heat up, and reduce battery life. Therefore, it is best to charge the battery once when the depth of discharge is 50% to 60%. In actual use, it can be converted into riding mileage. Necessary charging is performed according to the actual situation to avoid harmful charging.

Electric construction flatbed tricycle is a three-wheeled transportation tool for pulling goods driven by battery and motor. It is widely used in mines, quarries, stone supply companies, refractory factories, brick factories, furnace charge factories, farms, forests, etc., and is deeply loved and praised by the current market.

1. Lead-acid batteries (lead-acid colloidal batteries) are cheap and stable in performance. Electric vehicles on the market use this type of battery.

The air filter element prevents dust from entering the cylinder body and avoids the premature wear of the machine parts after the dust enters the cylinder body. Frequent cleaning and regular replacement of the machine should be used. The dust in the air pump will be deposited on the air filter element, reducing the air intake. , Combustion mixing ratio increases, resulting in incomplete combustion and reduced power. 

Working in this way for a long time will produce carbon deposits and aggravate the wear between the cylinder and pistons. The carbon deposits in the cylinder will cause the cylinder to pull. The machine power loss should be cleaned in time. , Replace the filter element to ensure the normal operation of the machine. At the same time, the outer wall of the machine cylinder should be cleaned frequently to ensure its heat dissipation effect, otherwise it will also increase the wear of the machine.

If the cylinder is pulled inside the cylinder to die, you only need to check the piston, usually caused by the following geometrical reasons:

A. The carbon deposits on the top of the piston and around the ring are serious, mainly caused by the use of bad engine oil, such as the use of four-stroke engine oil or diesel engine oil or inferior two-stroke engine oil.

B. The exhaust side of the piston pulls the cylinder air filter that is dirty, garbage blocks the carburetor fuel device, the adjustment is too small or the oil in the fuel is added too little, so that the concentration of gas entering the cylinder is reduced. Insufficient lubrication makes it easy to pull the cylinder where high temperature is caused.

C. The lower side of the piston's air intake port basically draws water into the cylinder, such as the use of rain and snow, the water enters the cylinder from the air filter, so that the lubricating oil film is mixed by the water, making the suction side of the piston There is a lack of lubricating oil film on the lower side. After high-speed operation, heat will cause cylinder pulling.

The electric miniature road roller has a motor for driving a hydraulic pump to generate the hydraulic pressure required by the appliance. This motor is also used to drive wheels that are usually driven by hydrostatic transmissions. The transmission includes a variable displacement motor-driven hydraulic pump connected to one or more hydraulic motors that drive wheels, usually with a constant displacement. The control of the variable displacement pump is achieved by a double-acting spool valve, which is biased into a center position by a spring and connected to the swash plate of the pump.

The double-acting spool valve has one working chamber connected to receive hydraulic fluid at a pilot pressure and another working chamber connected to the discharge line leading to the reservoir, the pilot pressure being generated by the engine-driven pump and therefore following Engine speed changes. In this way, the gear ratio changes automatically with the engine speed, thereby providing a high gear ratio at low engine speeds and a gradually decreasing gear ratio as the motor speed increases.

Electric miniature road rollers, including wheels, hydraulically operated work tools, engines, pumps driven by the engines to generate pressurized hydraulic fluid to power the appliances, hydrostatic transmission devices, double-acting hydraulic slide valves, pilot pressure pumps, and control The demand lever controlled by the operator of the vehicle speed. The hydrostatic transmission has a variable displacement hydraulic pump and a hydraulic motor connected to the variable displacement pump and used to drive the wheels. The double-acting hydraulic spool valve is spring biased to air. The gear position is used to set the displacement of the variable displacement pump. The pilot pressure pump is used to supply the pilot pressure that changes with the engine speed to the double-acting spool valve.

Use the battery box lock installed on the electric miniature tricycle itself:

The lock is easy to use. The tricycle is equipped with it when it leaves the factory, but the anti-theft effect is poor. It belongs to the anti-theft facility of "guard against the gentleman but not against the villain". However, it must be used anyway. This most basic anti-theft facility was not used either-too wrong.

Add chain lock or atomic lock:

For users who need to remove the battery for charging, they can only use locks and other facilities to take further precautions. The general methods of use are as follows:

A. For riding bikes with the battery box in front of the vehicle, consider connecting the handle of the battery box to the frame.

B. For riding bicycles with the battery box under the seat of the vehicle, the vehicle seat cushion should be locked with the rear shelf so that people cannot easily open the seat cushion (because you must open the seat cushion to steal your battery).

C. For electric vehicles with the battery box placed under the feet, after the chain lock is installed, the chain should be prevented from moving. At present, a chain lock with a cross has appeared, which can largely solve the problem of chain movement. The advantage of the chain lock is that it is easy to use. While preventing theft, it is also convenient to remove the battery for charging. However, if you encounter a thief with tools such as pliers, or a thief who breaks the battery box and takes the battery directly , It is basically powerless.

Enable the alarm:

When people encounter a vehicle equipped with an electric miniature tricycle alarm, the vehicle generally sounds an alarm, which can deter thieves, but from the current situation, this type of alarm basically does not work. , First, because the thief is skilled, he can steal the battery in ten seconds, and the alarm will not work after the power is lost. Secondly, even if there is a brief alarm sound, passers-by are basically ignored. Therefore, if you want to install an alarm, it is recommended to install the alarm in the battery box. Once the battery is stolen, the thief will carry a battery box that keeps calling, and he will be very flustered psychologically, and maybe throw it away. Running.

Install anti-theft tablet: