Traction follow-up steering mechanism

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to a traction follow-up steering mechanism, which is matched with a locomotive traction head, a triangular frame, a transmission shaft and a gap bridge shaft for use, and is characterized by structurally and mainly comprising a long swing arm, a connecting arm and a short swing arm, one end of the long swing arm is hinged with the triangular frame, one end of the short swing arm is hinged with the locomotive traction head, and the other end of the short swing arm is hinged with the triangular frame. The two ends of the connecting arm are hinged to the other end of the long swing arm and the other end of the short swing arm respectively, the locomotive traction head is hinged to the triangular rack, the end, hinged to the triangular rack, of the long swing arm is installed below the gap bridge shaft, the long swing arm and the gap bridge shaft rotate synchronously, and the short swing arm and the locomotive traction head rotate synchronously. The transmission device is simple in structure, economical and practical, flexible transmission connection and steering between a traction locomotive and an operation agricultural machine can be achieved, meanwhile, the steering angle and the transmission angle of the locomotive can be changed according to needs, and the transmission device is effectively prevented from being damaged.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and more specifically, to a traction frame, and more particularly, to a traction follow-up steering mechanism that connects an agricultural machine to a tractor. Background Technology

[0002] Generally, agricultural machinery used for tasks such as plastic film recycling, sowing, and fertilizing is connected to the tractor unit via a drawbar at the front of the vehicle. This reduces the vehicle's requirements for road space and operating area when turning, making the drawbar the "link" between the tractor unit and the working machinery. However, due to structural limitations, existing drawbars require a bridge axle for transmission in the middle of the power drive shaft, and the position is fixed. When the tractor unit turns, if the angle between the power input and the drive shaft is too large, it is not conducive to the backward transmission of the vehicle. Therefore, the different transmission angles caused by the tractor unit turning make the transmission device more prone to damage during the connection, separation, and turning operations of the drawbar and the working machinery. To solve the above technical problems, this application designs a traction-following steering mechanism that allows for flexible transmission connection and turning between the tractor unit and the working machinery while preventing damage to the transmission device. Summary of the Invention

[0003] The purpose of this utility model is to provide a traction follow-up steering mechanism that is simple in structure, economical and practical, and allows for flexible transmission connection and steering between tractor locomotives and agricultural machinery, while also allowing for changes in the locomotive steering angle and transmission angle as needed, and preventing damage to the transmission device.

[0004] This utility model is a traction follow-up steering mechanism, used in conjunction with a locomotive tractor, a triangular frame, a drive shaft, and a bridge axle. Its structure mainly includes a long swing arm, a connecting arm, and a short swing arm. One end of the long swing arm is hinged to the triangular frame, and one end of the short swing arm is hinged to the locomotive tractor. Both ends of the connecting arm are respectively hinged to the other ends of the long swing arm and the short swing arm. The locomotive tractor and the triangular frame are hinged together. The end of the long swing arm that is hinged to the triangular frame is installed below the bridge axle. The long swing arm rotates synchronously with the bridge axle, and the short swing arm rotates synchronously with the locomotive tractor.

[0005] Preferably, the length ratio of the long swing arm to the short swing arm is 2:1.

[0006] Preferably, the long swing arm and the short swing arm are parallel to each other in their initial state when they are not turning, and are perpendicular to the connecting arm with an angle of 90 degrees.

[0007] Preferably, the angle formed by the rotation of the locomotive traction head and the horizontal direction is the safe swing angle b, and the safe swing angle b ranges from 0 degrees to 45 degrees.

[0008] Preferably, within the range of the safe swing angle b, when the locomotive traction head has a steering angle of 30 degrees, the steering angles of the bridge shaft and the drive shaft are 15 degrees.

[0009] Working principle of this utility model:

[0010] This utility model is a traction-following steering mechanism. Various agricultural machinery can be connected to the rear of a locomotive traction frame, using the locomotive to traction the machinery for various agricultural operations. Existing transmission devices are prone to damage when the transmission steering angle is too large. This utility model reduces the transmission angle and thus minimizes damage. This utility model is used in conjunction with a locomotive traction head, a triangular frame, a drive shaft, and a bridge axle. It mainly includes a long swing arm, a connecting arm, and a short swing arm. Preferably, the length ratio of the long swing arm to the short swing arm is 2:1. When the locomotive traction head's steering angle is 30 degrees, the traction-following steering mechanism reduces the steering angle between the drive shaft and the bridge axle to 15 degrees, thereby reducing the drive shaft's angle of motion and protecting the drive shaft.

[0011] Compared with existing technologies, this utility model has a simple structure and is economical and practical. When the tractor and the working agricultural machinery connecting frame are turning, the intermediate connection of the long swing arm, connecting arm, and short swing arm ensures that the transmission of the drive shaft is not significantly affected when the tractor makes a large turn. It effectively solves the problem that the connecting tractor frame on traditional tractor equipment cannot change the transmission angle of the rear drive shaft, thus affecting the rear transmission when the tractor makes a large turn. This utility model can change the transmission angle, making the transmission more stable, preventing damage to the transmission device, improving the overall performance of the agricultural machinery, enhancing its adaptability, greatly improving the operational stability of the working agricultural machinery, and having a wide range of applications, thus facilitating its widespread application. Attached Figure Description

[0012] Figure 1 This is a top view of the overall structure of the present invention in an embodiment.

[0013] Figure 2 for Figure 1 A top-view schematic diagram of the connection structure of the traction-guided steering mechanism in its initial, non-steering state.

[0014] Figure 3 for Figure 2 A top-view schematic diagram of the connection structure of the traction follow-up steering mechanism when the locomotive traction head is turned 30 degrees.

[0015] As shown in the figure, 1 is the locomotive traction head, 2 is the traction follow-up steering mechanism, 3 is the bridge axle, 4 is the drive shaft, 5 is the triangular frame, 6 is the long swing arm, 7 is the connecting arm, and 8 is the short swing arm. Detailed Implementation

[0016] Example 1:

[0017] Referring to the accompanying drawings, the structure of the preferred embodiment of this utility model is described in detail below: A traction follow-up steering mechanism is used in conjunction with a locomotive traction head 1, a triangular frame 5, a drive shaft 4, and a bridge shaft 3. Its structure mainly includes a long swing arm 6, a connecting arm 7, and a short swing arm 8. One end of the long swing arm 6 is hinged to the triangular frame 5, and one end of the short swing arm 8 is hinged to the locomotive traction head 1. Both ends of the connecting arm 7 are respectively hinged to the other ends of the long swing arm 6 and the short swing arm 8. The locomotive traction head 1 and the triangular frame 5 are hinged together. The end of the long swing arm 6 that is hinged to the triangular frame 5 is installed below the bridge shaft 3. The long swing arm 6 rotates synchronously with the bridge shaft 3, and the short swing arm 8 rotates synchronously with the locomotive traction head 1.

[0018] As shown in the figure, the angle formed by the rotation of the locomotive tractor 1 and the horizontal direction is the safe swing angle b, which ranges from 0 degrees to 45 degrees. Within the range of the safe swing angle b, when the steering angle b of the locomotive tractor 1 is 30 degrees, the steering angle a between the drive shaft and the bridge shaft is 15 degrees. When the tractor and the agricultural machinery turn simultaneously, the intermediate connecting action of the long swing arm, connecting arm, and short swing arm ensures that when the tractor makes a large turn, the steering angle of the drive shaft is relatively small, and the transmission stability is not significantly affected. This effectively solves the problem that the connecting tractor frame on traditional tractor equipment cannot change the transmission angle of the rear drive shaft, thus affecting the rear transmission when the tractor makes a large turn. This invention can change the transmission angle, making the transmission more stable, preventing damage to the transmission device, and improving the overall performance of the agricultural machinery.

[0019] Example 2:

[0020] The difference between this embodiment and Embodiment 1 is that:

[0021] The length ratio of the long swing arm 6 to the short swing arm 8 is 2:1. In their initial state before turning, the long swing arm 6 and the short swing arm 8 are parallel to each other and perpendicular to the connecting arm 7, with an included angle of 90 degrees. The angle formed by the rotation of the locomotive traction head 1 and the horizontal direction is the safe swing angle b. Within the range of the safe swing angle b, when the turning angle b of the locomotive traction head 1 is 10 degrees, the turning angle a of the bridge shaft 3 and the drive shaft 4 is 5 degrees.

[0022] Example 3:

[0023] The difference between this embodiment and embodiment 2 is that the angle formed by the rotation of the locomotive traction head 1 and the horizontal direction is the safe swing angle b. Within the range of the safe swing angle b, when the turning angle b of the locomotive traction head 1 is 20 degrees, the turning angle a of the bridge shaft 3 and the drive shaft 4 is 10 degrees.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the protection scope of the present utility model. Any modifications, equivalent substitutions or improvements within the spirit of the present utility model are covered within the scope of the claims of the present utility model.

Claims

1. A traction-following steering mechanism, used in conjunction with a locomotive traction head, a triangular frame, a drive shaft, and a bridge axle, characterized in that... Its structure mainly includes a long swing arm, a connecting arm, and a short swing arm. One end of the long swing arm is hinged to the triangular frame, and one end of the short swing arm is hinged to the locomotive traction head. Both ends of the connecting arm are respectively hinged to the other ends of the long swing arm and the short swing arm. The locomotive traction head and the triangular frame are hinged together. The end of the long swing arm that is hinged to the triangular frame is installed below the bridge axle. The long swing arm rotates synchronously with the bridge axle, and the short swing arm rotates synchronously with the locomotive traction head.

2. The traction-following steering mechanism as described in claim 1, characterized in that... The length ratio of the long swing arm to the short swing arm is 2:

1.

3. The traction follow-up steering mechanism as described in claim 1 or 2, characterized in that... In their initial state before turning, the long swing arm and the short swing arm are parallel to each other and perpendicular to the connecting arm, with an included angle of 90 degrees.

4. The traction follow-up steering mechanism as described in claim 1 or 2, characterized in that... The angle formed by the rotation of the locomotive traction head and the horizontal direction is the safe swing angle b, and the range of the safe swing angle b is 0 degrees to 45 degrees.

5. The traction-following steering mechanism as described in claim 3, characterized in that... The angle formed by the rotation of the locomotive traction head and the horizontal direction is the safe swing angle b, and the range of the safe swing angle b is 0 degrees to 45 degrees.

6. The traction follow-up steering mechanism as described in claim 5, characterized in that... Within the range of the safe swing angle b, when the locomotive traction head has a steering angle of 30 degrees, the steering angles of the bridge shaft and the drive shaft are 15 degrees.

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