CN203015412U - Track boat-type tractor - Google Patents

Abstract

The utility model discloses a track boat-type tractor. A boat-shaped cover, a track type traveling gear, a hydraulic operation system, a transmission and an agricultural implement connection device are arranged on a machine frame, wherein the hydraulic operation system, the transmission and the agricultural implement connection device are designed anew. The track boat-type tractor has the advantages of a common track-type tractor and a boat-type tractor, a front driving track is used as a traveling system, grounding pressure is reduced, and compared with field passing ability of a commonly-used power chassis, the field passing ability of the track boat-type tractor is improved. In addition, the transmission with the synchronous rotation speed of traveling and output is designed anew, and therefore demands of crops with different row spaces in the process of seeding can be met. A hydraulic stepless speed change system is adopted as the operation control device, and therefore operation is convenient. By means of a hydraulic cylinder and parallelogram connection rods, the track boat-type tractor can be assembled with different agricultural implements and is suitable for power chassis of agricultural implements for paddy field leveling, seed rice seeding, rapeseed seeding, tobacco field ridging, paddy field stubble cleaning and weed burying and the like.

Description

A crawler boat tractor

technical field

The utility model relates to a chassis suitable for walking and power output in agricultural operations, in particular to a crawler boat tractor which is suitable for various agricultural operation tools and can operate in paddy fields or dry land.

Background technique

At present, when agricultural machinery manufacturers manufacture agricultural machinery, the optional power chassis generally include walking tractors, wheeled tractors, motorized rice transplanter chassis, high-speed rice transplanter chassis, etc. There is no versatility between them, and the requirement of assembling a variety of agricultural machinery on one power chassis cannot be realized, which greatly increases the purchase cost of farmers. The above power chassis also have the following problems, such as: excessive self-weight, asynchronous walking and output, poor field passability, unstable center of gravity when assembling with agricultural machinery, low reliability, and poor operating comfort. Therefore, be necessary to design and develop a kind of chassis that is applicable to the novel walking of agricultural operation and power output.

Utility model content

The purpose of the utility model is to provide a crawler boat tractor with good versatility and high passability in the field to solve the problems existing in the above power chassis.

The technical scheme adopted by the utility model to solve the above-mentioned technical problems is: a crawler boat tractor, which mainly includes a frame, a diesel engine and a transmission device, a walking system, an operation control device, a gearbox, and an agricultural machinery coupling device; the walking system is The front drive track reduces the grounding pressure; a boat-shaped casing is installed on the frame, and during operation, most of the weight of the whole machine is supported by the boat-shaped casing, which reduces the grounding pressure ratio.

The control system adopts a hydraulic continuously variable transmission, which makes the control and operation of the tractor convenient and comfortable; the running of the transmission is synchronized with the output speed, so as to meet the requirements of crops with different distances during operation.

The connecting device for agricultural implements includes a hydraulic lifting device and a parallelogram connecting rod. The hydraulic lifting device is used in conjunction with the parallelogram connecting rod to realize the connection and assembly of crawler boat tractors and different agricultural implements and the rapid lowering and lifting of agricultural implements. Improve work efficiency.

The hydraulic lifting device includes a hydraulic cylinder, which is hinged on the frame through a pin shaft, and the piston rod is hinged and fixed on the upper connecting rod. the

The parallelogram connecting rod includes an upper link, a lower link and a rear support, one end of the upper link is hinged on the upper part of the frame of the crawler boat tractor, and the other end is hinged to the rear support; one end of the lower link is hinged Fixed on the lower part of the frame of the crawler boat tractor, the other end and the rear support are hinged to each other; the rear support is connected to the agricultural implements through the pin shaft; The utility model can keep the angle between the agricultural implement and the ground unchanged, and improves the field passability of the agricultural implement.

The utility model combines the advantages of ordinary crawler tractors and boat-type tractors, and solves the problems of excessive self-weight of the original agricultural machinery power chassis, asynchronous walking and output, poor field passability, unstable center of gravity and poor reliability when assembling with agricultural machinery. Problems such as poor operating comfort; and realized that a crawler boat tractor can be equipped with a variety of agricultural machinery, which reduces the purchase cost of farmers and is suitable for leveling paddy fields, sowing rice seeds, sowing rapeseed, and ridges in tobacco fields , Paddy field stubble burying and other agricultural operation equipment power chassis.

Description of drawings

Fig. 1 is a side view schematic diagram of the utility model;

Fig. 2 is a schematic diagram of the rear view of the utility model;

Fig. 3 is a schematic diagram of a top view of the utility model;

Fig. 4 is a schematic diagram of a parallelogram connecting rod structure;

Fig. 5 is a schematic diagram of a top view of a parallelogram connecting rod;

Fig. 6 is a schematic diagram of the utility model for assembling the precision hole direct seeding machine for rice.

In the figure: 1. Boat-shaped casing, 2. Diesel engine, 3. Operation control device, 4. Hydraulic lifting device, 5. Frame, 6. Front drive track, 7. Gearbox, 8. Rear support, 9. Upper connection Rod, 10. hydraulic cylinder, 11. pull down rod, 12. parallelogram connecting rod, 13. rice precision direct seeding machine.

Detailed ways

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention , for those skilled in the art, other drawings can also be obtained according to these drawings on the premise of not paying creative work.

As shown in accompanying drawings 1 to 5, embodiment one, a crawler boat tractor, a crawler boat tractor mainly includes a frame 5, a boat-shaped casing 1, a diesel engine 2, a transmission device, a walking system, and an operation control device 3. Gear box 7, agricultural machinery connection device; during operation, most of the weight of the whole machine is supported by the boat-shaped casing 1, which reduces the grounding pressure ratio and prevents the whole machine from sinking; the walking system adopts the front drive crawler belt 6 to reduce the grounding pressure Compared with the chassis, the field passability is improved; the operation control device 3 adopts a hydraulic continuously variable transmission, which makes the control operation of the tractor convenient, labor-saving and comfortable; the transmission speed of the gearbox 7 is synchronized with the output speed, so as to adapt to the requirements of crops with different distances during operation The agricultural machinery coupling device includes a hydraulic lifting device 4, a parallelogram connecting rod 12, and the parallelogram connecting rod 12 includes an upper connecting rod 9, a lower rod 11 and a rear support 8, and one end of the upper connecting rod 9 is hinged on the crawler boat tractor. The upper part of the frame 5, the other end is hinged with the rear support 8; one end of the drop rod 11 is hinged and fixed on the lower part of the frame 5 of the crawler boat tractor, and the other end is hinged with the rear support 8; the rear support 8 can be connected with different agricultural implements through the pin shaft; the hydraulic lifting device 4 includes a hydraulic cylinder 10, which is hinged and fixed on the frame, the piston rod is hinged and fixed on the upper connecting rod 9, and the parallelogram connecting rod 12 passes through the hydraulic cylinder 10. The action raises or lowers the agricultural implements, while keeping the angle between the agricultural implements and the ground unchanged, which improves the field passability of the agricultural implements.

As shown in accompanying drawing 6, embodiment two, and the difference of embodiment one is: rice precision direct seeding machine 13 is assembled on the frame 5 of crawler boat type tractor with parallelogram connecting rod 1212, hydraulic lifting device 4, The power required for the rice precision direct seeding machine 13 is provided by the power output shaft of the gearbox 7; during operation, the hydraulic lifting device 4 drives the parallelogram connecting rod 12 through the hydraulic cylinder 10 to lower the rice precision direct seeding machine 13 to a position suitable for field work. Height, gearbox 7 to front drive crawler 6, rice precision direct seeding machine 13 synchronously output speed to ensure the quality of rice sowing operation, after the operation is completed, hydraulic lifting device 4 drives parallelogram connecting rod 12 through hydraulic cylinder 10 to direct rice precision direct seeding Machine 13 is promoted to suitable height, guarantees the passability of crawler boat tractor in field.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made. These improvements and modifications It should also be regarded as the protection scope of the present utility model.

Claims (5)

1. A crawler boat tractor mainly includes a frame, a diesel engine and a transmission device, a walking system, an operation control device, a gearbox, and an agricultural machinery coupling device; it is characterized in that: the walking system is a front drive crawler; A boat-shaped casing is installed. 2. A crawler boat tractor according to claim 1, characterized in that: the operation control device adopts a hydraulic continuously variable transmission; the running of the transmission is synchronized with the output speed. 3. A crawler boat tractor according to claim 1, characterized in that: said agricultural implement coupling device comprises a hydraulic lifting device and a parallelogram connecting rod. 4. A crawler boat tractor according to claim 3, characterized in that: said hydraulic lifting device comprises a hydraulic cylinder hinged on the frame through a pin, and the piston rod is hinged and fixed on the upper link. 5. A crawler boat tractor as claimed in claim 3, characterized in that: the parallelogram connecting rod comprises an upper link, a lower rod and a rear support, and one end of the upper link is hinged on the crawler boat tractor. The upper part of the frame, the other end and the rear support are hinged; one end of the lower rod is hinged and fixed on the lower part of the frame of the crawler boat tractor, and the other end is hinged with the rear support; the rear support is connected to the agricultural machine through a pin implements; the parallelogram connecting rod is connected with pin shafts of different agricultural implements.

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