Features and advantages of crawler tractors

China is a big agricultural country. In recent years, with the large-scale development of agriculture, the conservation tillage method has been widely accepted and the call for green agriculture has made agricultural machinery crawler tractors more and more favored by farmers. Many friends don't know much about wheeled tractors. Today, I will talk to you about the characteristics and advantages of crawler tractors.

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1. The grounding ratio is low to protect the soil

 

Use the crawler tow to avoid the formation of plough bottom in the dry land, to protect moisture and prevent drought; to prevent damage to the hard bottom in paddy fields, and to ensure normal cultivation of the paddy field; the specific pressure of the wheel tractor on the ground is three times that of the crawler tow. It is only 30%-40%, and the germination rate can still reach 80%-90% after the tread is compacted; the wheel tug rut in the paddy field even affects the transplanting and harvesting and even causes the mud feet to deepen and make it impossible to cultivate.

 

2. Large tractive force, obvious advantages in deep tumbling and load-bearing operations

 

The traction force of the crawler tractor of the same weight is 1.4-1.8 times that of the wheel tractor. In terms of traction efficiency, the traction efficiency of the wheel tractor is 55-65%, and the crawler tractor can reach 70-80%, which means that the tractor of the same horsepower, as the wheel tractor The effective power of the engine is 15% more lost than the drag.

 

3. High working efficiency

 

Tractors are used for farmland operations. The speed of rotary tillage is generally 5~6km/h, the speed of plowing is generally 7~9km/h, and the speed of harrowing is generally 10~12km/h. The plowing speed of the crawler tractor is equivalent to that of the wheel tractor. Whether it is plowing, harrowing, sowing, or other farmland operations, the crawler tractor is not slower than the wheel tractor, and the traction advantage is obvious.

crawler tractor

 

4. Excellent passability and climbing ability

 

Due to their low center of gravity and significant adhesion coefficient, crawler tractors have good slope stability against overturning and sliding, and also have the characteristics of small turning radius maneuverability, strong climbing ability, and off-road performance. Farmland and terrace operations have better adaptability than wheel towing, especially when equipped with rubber tracks, it is an all-terrain operation machine.

 

5. Operation comfort

 

At present, crawler tractors have generally adopted hydraulic power steering, fully enclosed shock-absorbing cabs, optional air conditioners, and heaters, digital instruments, etc., which have greatly improved the noise at the ear and driving comfort. With the application of new technologies such as differential steering, single handle, or steering wheel steering control, its handling comfort will become better and better, and it is no longer inferior to wheeled tractors.

 

6. Utilization and maintenance convenience

 

In addition to fieldwork, crawler tractors can also play a role in farmland infrastructure and small water conservancy projects. If the blade is installed,

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It can be used as a bulldozer in agricultural earthwork operations such as ditching, cleaning fish ponds, and changing slopes to ladders, and the comprehensive utilization rate is higher than that of wheeled tractors. Moreover, the whole frame structure of the crawler tractor, compared with the frameless structure of the wheel tractor, does not need to be broken down and disassembled like the wheel tractor during maintenance, which greatly facilitates the user's daily maintenance and maintenance of the whole machine.

 

Advantages of tracked tractors

 

Crawler tractor is widely used in agriculture and the market demand is also great. Crawler tractor has the advantages of small pressure per unit area of soil and good adhesion to soil (not easy to slip), in the soil wet and soft zone has better performance, high traction efficiency. As agricultural machinery giant, the tracked tractors produced by YTO have been favored and concerned by market customers.

Advantages of small crawler tractors and their travel principle

Advantages of small crawler tractors and their travel principle

The small crawler tractor is a type of tractor, and its traveling device is composed of a guide wheel, a follower wheel, a roller, a drive wheel and a crawler. During operation, the drive wheel winds up the track and the roller moves forward or backward on the track of the track. The small crawler tractor has the advantages of low pressure per unit area of the soil and good adhesion to the soil, and has good passage performance in the soil moist and soft, and the traction efficiency is also high.

 

Unlike a wheeled tractor, a small crawler tractor is supported on the ground by a wound endless track. The track contacts the ground, the shank is inserted into the soil, and the driver is not grounded. The drive wheel continuously rolls the track from the rear by the engagement between the gear teeth on the drive wheel and the track pin on the drive wheel.

 

During the running of the small crawler tractor, the grounding part of the track gives the ground a backward force, and the corresponding reaction force of the crawler is required accordingly. This reaction is the driving force for driving the small crawler tractor forward. It can be seen that the small crawler tractor is realized by the interaction between the crawler belt and the ground by the driving torque through the driving wheel, and the driving force is greater than the sum of the rolling resistance and the traction resistance. 

 

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Introduction To The Characteristics And Advantages Of Crawler Tractors

In order to protect the soil, it is necessary to ensure that the grounding ratio pressure remains low.

 

In order to prevent the formation of plough bottom in dry land and maintain soil moisture to prevent drought, it is recommended to use crawler and towing operations. This method is also effective in protecting paddy fields from damage to the hard bottom layer and ensuring normal cultivation. It should be noted that the pressure of wheel trailing ground is much higher than that of crawler dragging, which can result in a low seedling emergence rate of only 30%-40%. However, if crawler dragging is used, the seedling emergence rate can still reach 80%-90%. In addition, the tugboat ruts left in paddy fields can pose a problem for rice planting and harvesting, and even cause the mud feet to deepen, making it impossible to cultivate. Therefore, it is important to take measures to prevent such damage and preserve the productivity of the land.

 

The benefits of conducting deep turning load operation are significant due to the large magnitude of the traction force involved. Deep turning can yield better results compared to other turning operations due to its ability to handle a higher level of load with ease.

 

When it comes to comparing the performance of crawler tractors and wheel tractors, the former comes out on top. The traction force of a crawler tractor that weighs the same as a wheel tractor is around 1.4 to 1.8 times greater, which significantly increases its overall traction efficiency. While wheel tractors have a traction efficiency rate of around 55-65%, crawler tractors can achieve between 70-80%. As a result, with the same horsepower, wheel tractors lose an extra 15% of effective power compared to their crawler counterparts.

 

3. High operation efficiency
When it comes to farmland operations, tractors are an essential piece of equipment. They are used for the rotary tillage, plowing, raking, and sowing of crops. The typical speed for rotary tillage is around 5-6km/h, while plowing can be done at a speed of 7-9km/h, and raking at 10-12km/h.

 

Whether the tractor is equipped with wheels or crawlers, the tillage speed is comparable. But, the advantages of a crawler tractor become more apparent in the traction it can provide. When dragging heavy loads across the farmland, the crawler tractor can keep up with the wheel tractor without losing any speed, and its traction advantage remains visible.

 

4. Strong passability and climbing ability
The crawler tractor exhibits impressive slope stability against overturning and sliding. This is due to its low center of gravity and large adhesion coefficient. In addition, it boasts excellent maneuverability with a small turning radius and is capable of cross-country travel thanks to its strong climbing ability. These features make it well-suited for use in farmland and terraced operations in mountainous and hilly areas. It outperforms wheel dragging equipment, particularly after the installation of rubber tracks, allowing it to operate as an all-terrain machine.

 

5. Operation comfort
Nowadays, crawler tractors have undergone significant improvements to enhance their performance and user experience. Most models have embraced hydraulic power steering, fully enclosed shock-absorbing cabs, and optional air conditioning and heating systems. They also feature digital instruments that provide crucial information to the operator. These advancements have significantly reduced noise levels, improving driving comfort, and overall user satisfaction. Additionally, advanced technologies such as differential steering, single-handle or steering wheel steering control have revolutionized how operators handle the equipment. As such, handling comfort of crawler tractors is becoming better by the day, and it is fast catching up with its wheeled counterparts.

 

6. Utilization rate and maintenance convenience
Crawler tractors are not just limited to field operations, but they can also contribute to the development of farmland infrastructure and small water projects. By installing a blade on the tractor, it can be transformed into a versatile tool for excavation and leveling of earthworks needed for agricultural or water management projects. The diverse use of crawler tractors can significantly cut down the cost of maintaining and enhancing rural infrastructure while also aiding in the economic growth of such areas.

 

The crawler tractor is a versatile piece of machinery that can be used for various agricultural earthworks such as cleaning fish ponds, ditching, and slope ladders. Its comprehensive utilization rate surpasses that of wheeled tractors. The full frame structure of the crawler tractor allows for easy repair and maintenance, unlike the frameless structure of a wheel tractor, which requires disassembly for maintenance. This feature greatly facilitates daily use and ensures that the machine does not have to be dismantled to carry out minor repairs.