Large angle traction drive mechanism

Abstract

The utility model discloses a big corner traction drive mechanism, including front traction arm, rear traction arm and gearbox, the front traction arm is connected with rear traction arm through the adapter component rotation, the gearbox includes upper box and lower box, upper box and lower box rotation is connected, the lower box is rotationally installed with power input shaft, the upper box is rotationally installed with power output shaft, the upper box and lower box rotation is installed with transmission shaft, power input shaft and power output shaft are connected with transmission shaft drive respectively, the front traction arm is fixedly connected with lower box through front connecting piece, the rear traction arm is fixedly connected with upper box through rear connecting piece, the utility model discloses structural design is reasonable, and can realize big angle's free steering when traction operation, and does not influence the normal transmission output of power, has good structural flexibility and mechanical efficiency, guarantees the stress even when operation, reduces operation difficulty and maintenance cost simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, specifically to a large-angle traction transmission mechanism. Background Technology

[0002] With the development of social technology, agricultural machinery is being used more widely in agricultural operations. Currently, peanut harvesters are generally divided into two categories: self-propelled peanut harvesters and towed peanut harvesters. Self-propelled harvesters are self-powered, and their cost is relatively high; towed peanut harvesters utilize the power of a tractor, and the tractor and implements are connected through a traction transmission mechanism.

[0003] Currently, traction equipment typically provides power output through a universal joint drive shaft. Since the maximum working angle of the universal joint drive shaft is limited, if the turning angle is greater than the maximum working angle during turning operations, the universal joint is prone to damage. Therefore, the tractor needs to maintain a large turning radius when turning. If a larger working angle is required, the output power needs to be cut off before turning, and then the output power needs to be restored after turning. This operation is cumbersome and not conducive to improving work efficiency. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a large-angle traction transmission mechanism with a simple structural design, capable of large-angle free steering, and flexible and stable operation.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a large-angle traction transmission mechanism, including a front traction arm, a rear traction arm, and a gearbox; the front traction arm and the rear traction arm are rotatably connected via a transition assembly; the gearbox includes an upper housing and a lower housing, which are rotatably connected; a power input shaft is rotatably mounted in the lower housing, a power output shaft is rotatably mounted in the upper housing, and a transmission shaft is rotatably mounted between the upper housing and the lower housing; the power input shaft and the power output shaft are respectively connected to the transmission shaft; the front traction arm is fixedly connected to the lower housing via a front connector, and the rear traction arm is fixedly connected to the upper housing via a rear connector.

[0006] As a preferred technical solution, the front connector includes two Z-shaped front traction plates, which are respectively fixedly installed on both sides of the lower housing.

[0007] As a preferred technical solution, the rear connector includes two Z-shaped rear traction plates, which are respectively fixedly installed on both sides of the upper housing.

[0008] As a preferred technical solution, the adapter assembly includes a connecting plate fixedly installed at the front end of the rear traction arm, a rotating shaft fixing plate installed on the connecting plate, and a rotating shaft installed on the rotating shaft fixing plate; the rear end of the front traction arm is provided with a rotating sleeve fitted onto the rotating shaft, and the rotating sleeve is rotatably connected to the rotating shaft.

[0009] Compared with the prior art, the present invention has at least the following beneficial effects:

[0010] (1) Since the front traction arm and the rear traction arm are rotatably connected through the adapter assembly, the upper box and the lower box are rotatably connected, the front traction arm is fixedly connected to the lower box through the front connector, the rear traction arm is fixedly connected to the upper box through the rear connector, and a drive shaft is rotatably installed between the upper box and the lower box. The power input shaft and the power output shaft are respectively connected to the drive shaft for transmission. In this way, when towing agricultural implements, the lower box rotates with the front traction arm, and the upper box rotates with the rear traction arm, thereby achieving free steering at a large angle without affecting the normal transmission and output of power.

[0011] (2) The front traction arm is fixedly connected to the lower box through the front connector, and the rear traction arm is fixedly connected to the upper box through the rear connector. The front connector and the rear connector are Z-shaped structures. The bending shape of the Z-shaped structure allows it to be easily connected, while enhancing the bending and torsional stiffness. It has good structural flexibility and mechanical efficiency, ensuring uniform force during operation, which is conducive to improving service life. It is also easy to disassemble and replace, reducing the difficulty of operation and maintenance costs. Attached Figure Description

[0012] The following figures are intended only to illustrate and explain the present invention and do not limit the scope of the present invention. Wherein:

[0013] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0014] Figure 2 This is a cross-sectional structural schematic diagram of an embodiment of the present utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the front connector in an embodiment of this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the rear connector in an embodiment of this utility model.

[0017] In the diagram: 1-Front towing arm; 2-Rear towing arm; 3-Gearbox; 31-Upper housing; 32-Lower housing; 33-Power input shaft; 34-Power output shaft; 35-Drive shaft; 4-Adapter assembly; 41-Connecting plate; 42-Shaft fixing plate; 43-Shaft; 44-Spindle; 5-Front connector; 6-Rear connector. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Undoubtedly, those skilled in the art will recognize that various modifications can be made to the described embodiments without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0019] like Figure 1 and Figure 2 As shown, the large-angle traction transmission mechanism includes a front traction arm 1, a rear traction arm 2, and a gearbox 3. The front traction arm 1 and the rear traction arm 2 are rotatably connected via a transition assembly 4. The gearbox 3 includes an upper housing 31 and a lower housing 32, which are rotatably connected and can rotate relative to each other. A power input shaft 33 is rotatably mounted in the lower housing 32 via a bearing, and a power output shaft 34 is rotatably mounted in the upper housing 31 via a bearing. A transmission shaft 35 is provided between the upper housing 31 and the lower housing 32. The upper end of the transmission shaft 35 is rotatably connected to the upper housing 31 via a bearing, and the lower end of the transmission shaft 35 is rotatably connected to the lower housing 32 via a bearing. The power input shaft 33 and the power output shaft 34 are respectively connected to the transmission shaft 35 via gears. The front traction arm 1 is fixedly connected to the lower housing 32 via a front connector 5, and the rear traction arm 2 is fixedly connected to the upper housing 31 via a rear connector 6.

[0020] Because the front traction arm 1 and the rear traction arm 2 are rotatably connected by the adapter assembly 4, the upper housing 31 and the lower housing 32 are rotatably connected, the front traction arm 1 is fixedly connected to the lower housing 32 by the front connector 5, and the rear traction arm 2 is fixedly connected to the upper housing 31 by the rear connector 6. A drive shaft 35 is rotatably installed between the upper housing 31 and the lower housing 32, and the power input shaft 33 and the power output shaft 34 are respectively connected to the drive shaft 35 for transmission. In this way, when towing agricultural implements (such as peanut harvesters), the lower housing 32 rotates with the front traction arm 1, and the upper housing 31 rotates with the rear traction arm 2, thereby achieving free steering at a large angle without affecting the normal transmission and output of the tractor's power. The operation is flexible and stable, which can greatly improve harvesting efficiency.

[0021] refer to Figure 1 and Figure 3 In this embodiment, the front connector 5 includes two Z-shaped front traction plates, which are respectively fixedly installed on both sides of the lower housing 32. (Reference) Figure 1 and Figure 4The rear connector 6 includes two Z-shaped rear traction plates, which are fixedly installed on both sides of the upper housing 31. The front connector 5 and the rear connector 6 are both Z-shaped structures. The curved shape of the Z-shape allows for easy connection between the traction arm and the gearbox body, while enhancing bending and torsional rigidity. They possess good structural flexibility and mechanical efficiency, ensuring uniform force distribution during operation, extending service life, and facilitating disassembly and replacement, thus reducing operational difficulty and maintenance costs.

[0022] refer to Figure 2 The adapter assembly 4 includes a connecting plate 41 fixedly installed at the front end of the rear towing arm 2. Two rotating shaft fixing plates 42 are mounted on the connecting plate 41, and a rotating shaft 43 is mounted on each rotating shaft fixing plate 42. A rotating sleeve 44 is fitted onto the rotating shaft 43 at the rear end of the front towing arm 1, and the rotating sleeve 44 is rotatably connected to the rotating shaft 43. This design of the adapter assembly 4 ensures a reliable connection between the front towing arm 1 and the rear towing arm 2, reduces interference with other components, and facilitates maintenance and operation.

[0023] The above description is merely an illustrative embodiment of this utility model and is not intended to limit the scope of this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model.

Claims

1. A large-angle traction transmission mechanism, characterized in that: The system includes a front tow arm, a rear tow arm, and a gearbox; the front tow arm and the rear tow arm are rotatably connected via an adapter assembly; the gearbox includes an upper housing and a lower housing, which are rotatably connected; a power input shaft is rotatably mounted in the lower housing, a power output shaft is rotatably mounted in the upper housing, and a drive shaft is rotatably mounted between the upper and lower housings; the power input shaft and the power output shaft are respectively connected to the drive shaft for transmission; the front tow arm is fixedly connected to the lower housing via a front connector, and the rear tow arm is fixedly connected to the upper housing via a rear connector.

2. The large-angle traction transmission mechanism as described in claim 1, characterized in that: The front connector includes two Z-shaped front traction plates, which are fixedly installed on both sides of the lower housing.

3. The large-angle traction transmission mechanism as described in claim 1, characterized in that: The rear connector includes two Z-shaped rear traction plates, which are fixedly installed on both sides of the upper housing.

4. The large-angle traction transmission mechanism as described in any one of claims 1 to 3, characterized in that: The adapter assembly includes a connecting plate fixedly installed at the front end of the rear traction arm, a rotating shaft fixing plate installed on the connecting plate, and a rotating shaft installed on the rotating shaft fixing plate; the rear end of the front traction arm is provided with a rotating sleeve fitted onto the rotating shaft, and the rotating sleeve is rotatably connected to the rotating shaft.

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