Traction frame of agricultural locomotive

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to an agricultural locomotive traction frame which comprises a main support, a suspension connecting frame and a U-shaped connecting support, one end of the U-shaped connecting support is hinged to the middle of the suspension connecting frame, and the other end of the U-shaped connecting support is hinged to the main support. An n-shaped sliding seat is arranged above the U-shaped connecting support, a transmission support is arranged close to the end of the U-shaped connecting support, a sliding wall extending forwards is arranged on the front portion of the transmission support, a pulley is arranged at the front end of the sliding wall, the pulley extends into a strip-shaped sliding groove in the n-shaped sliding seat, and the pulley can slide front and back in the strip-shaped sliding groove. The agricultural locomotive traction frame is simple in structure, economical, practical, capable of achieving a large transmission included angle, stable in transmission, high in adaptability, capable of improving the performance of the whole agricultural machine, capable of greatly improving the operation stability of the operation agricultural machine and high in universality.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a traction frame, and more particularly to an agricultural locomotive traction frame for connecting an agricultural machine with a tractor. Background Art

[0002] Agricultural machinery generally consists of a power machine and a work machine, most of which are connected by a traction device such as an articulated joint. Traditional agricultural machinery traction equipment and the frame have relatively fixed positions and angles, which is suitable for relatively regular fields. However, for irregularly shaped fields, the work quality is poor, requiring manual work at the edges, which is labor-intensive and inefficient.

[0003] Typically, agricultural machinery used for mulch film recycling, seeding, and fertilizing is connected to the tractor via a drawbar at the front of the vehicle. This drawbar serves to reduce the vehicle's turning radius and minimize road and operating space requirements, making it the "link" connecting the tractor and the agricultural machinery. However, due to structural limitations, existing drawbars have a fixed power transmission shaft. When the tractor turns and during transmission, the angle between the power input and the transmission shaft is too small, hindering rearward transmission. Consequently, the limited transmission angle created by turning hinders the connection, disconnection, and steering of the drawbar from the agricultural machinery. To address these technical issues, a drawbar designed to facilitate steering and facilitate flexible connection and steering between the tractor and the agricultural machinery was designed. Summary of the Invention

[0004] The purpose of the present utility model is to provide a modern agricultural machinery traction device to solve the problems raised in the above-mentioned background technology. More specifically, it is to provide an agricultural locomotive traction frame with a simple structure, economical and practical, which solves the practical problem that the angle formed between the power input and the transmission shaft is too small, which is not conducive to the rear transmission of the locomotive, and can flexibly connect the steering and transmission between the traction locomotive and the working agricultural machinery.

[0005] The utility model discloses an agricultural locomotive traction frame, which mainly comprises a main bracket, a suspension connecting frame, and a U-shaped connecting support. One end of the U-shaped connecting support is fixedly connected to the suspension connecting frame by bolts, and the other end of the U-shaped connecting support is hinged to the main bracket.

[0006] A "п"-shaped slide is provided above the U-shaped connecting support, and a strip-shaped slide is provided on the "п"-shaped slide. A transmission support is provided at the end of the main support close to the U-shaped connecting support. The transmission support is divided into an upper support and a lower support. The upper support and the lower support are both tubular cylinders. A rotating shaft is provided in the lower support. The upper part of the rotating shaft is connected to the lower support through a bearing, and the lower part of the rotating shaft is fixedly connected to the main support; the upper support is arranged horizontally, and a transmission coupling is provided inside, and the transmission coupling is connected to the upper support through a bearing;

[0007] The front part of the transmission support is provided with a forward sliding wall, the front end of the sliding wall is provided with a pulley, the pulley extends into the strip sliding groove on the "п"-shaped slide, and the pulley can slide back and forth in the strip sliding groove;

[0008] An anti-vibration seat is provided at the rear of the transmission support, and an anti-vibration block is provided at the front end of the anti-vibration seat. The anti-vibration block extends forward and is in elastic contact with the outer wall of the lower support.

[0009] Preferably, reinforcing ribs are provided on the sliding wall.

[0010] Preferably, the shockproof seat is a tubular cylinder, the shockproof block is connected to a block seat, the block seat is slidably connected to the inner wall of the shockproof seat, and the upper and rear parts of the shockproof seat are provided with tightening nuts, which pass through the outer wall of the shockproof seat, contact the block seat, and tighten the block seat downward and forward.

[0011] Preferably, the anti-vibration block is made of elastic material.

[0012] Preferably, the contact surface between the anti-seismic block and the outer wall of the lower support is in the shape of an arc surface.

[0013] Working principle of this utility model:

[0014] The present invention relates to an agricultural locomotive traction frame. Various agricultural tillage machines can be connected to the rear of the traction frame, and the traction locomotive can be used to pull the agricultural machines to perform various farming operations. The agricultural locomotive traction frame provided by the present invention mainly includes a main frame 1, a suspension connecting frame 4, and a U-shaped connecting support 5. One end of the U-shaped connecting support 5 is hinged to the middle of the suspension connecting frame 4, allowing the left and right sides of the suspension connecting frame 4 to swing up and down around a fixing bolt. The other end of the U-shaped connecting support 5 is hinged to the main frame 1, allowing the main frame 1 to rotate around a hinge shaft 2.

[0015] A "п"-shaped slide 6 is provided above the U-shaped connecting support 5, and a strip slide 13 is provided on the "п"-shaped slide 6. The pulley 14 at the front end of the sliding wall extends into the strip slide 13 on the "п"-shaped slide, and the pulley 14 can slide back and forth in the strip slide 13; the transmission support is provided with a rotating shaft 16 inside, and the transmission support and the main frame 1 are hinged through the rotating shaft 16.

[0016] When the traction locomotive drives the traction frame of the present invention to turn, the suspension connecting frame 4 drives the U-shaped connecting support 5 to rotate a certain angle together, forming an angle with the main frame 1. The lower part of the entire transmission support is hinged to the main frame 1 via a rotating shaft 16. The upper transmission shaft 23 is connected to the transmission coupling 9. The pulley 14 on the slide arm can slide back and forth in the strip chute. When the suspension connecting frame 4 drives the U-shaped connecting support 5 to rotate together, the upper transmission support rotates, causing the pulley 14 to slide in the strip chute, causing the transmission coupling 9 to drive the transmission shaft 23 to rotate as well, forming a transmission angle.

[0017] In this way, when the agricultural locomotive turns, the suspension connecting frame 4 drives the U-shaped connecting support 5 to rotate, forming a rotation angle with the main frame, and the transmission support drives the sliding arm 7 to form another rotation angle with the main frame 1. The transmission coupling 9 on the transmission support rotates with the transmission shaft 23 to form another rotation angle, thus forming a larger transmission angle between the entire power input direction and the transmission shaft. Compared with the prior art, when the agricultural locomotive turns the same corner, the utility model ensures a larger transmission angle, which greatly reduces the impact of the locomotive turning on the transmission stability of the transmission shaft 23.

[0018] The transmission support is provided with a shock-absorbing seat 11 at the rear, and a shock-absorbing block 17 at the front end of the shock-absorbing seat 11. The shock-absorbing block 17 is made of elastic material and extends forward to elastically contact the outer wall of the lower support 10. The purpose is to use the shock-absorbing block 17 to contact the lower support 10 to form friction resistance, making the entire transmission support rotate more smoothly during rotation and playing a role in shock absorption.

[0019] Compared with the existing technology, the present invention has a simple structure and is economical and practical. This design can buffer the left and right swing of the traction locomotive and the agricultural machinery connecting frame. Especially when turning, the intermediate connection function of the U-shaped connecting support and the transmission support is used, so that when the traction locomotive turns sharply, the transmission angle formed will not be too small, and the transmission of the drive shaft will not be greatly affected. This solves the practical problem that the connecting traction frame on traditional traction equipment cannot change the rear transmission angle, which affects the rear transmission when the traction locomotive turns sharply. There is no longer the limitation of the transmission angle caused by the turning of the traction locomotive. The present invention can achieve a large transmission angle, making the transmission more stable, improving the performance of the agricultural machinery, and being more adaptable. The agricultural locomotive traction frame provided by the present invention greatly improves the operating stability of the agricultural machinery, has strong versatility, a wide range of applications, is easy to maintain and replace, and is also conducive to promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall main structure of an embodiment of the present utility model.

[0021] Figure 2 for Figure 1 Schematic diagram of the top view structure.

[0022] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure showing the installation position relationship between the middle transmission support and the shock-absorbing seat.

[0023] Figure 4 for Figure 1 Schematic diagram of the top view structure of the U-shaped connection support.

[0024] Figure 5 for Figure 1 Schematic diagram of the top view of the installation position relationship between the middle resistance block seat and the anti-seismic resistance block.

[0025] Figure 6 2 is a schematic diagram of the main structure of the utility model showing the connection relationship between the overall structure and the transmission shaft in an embodiment.

[0026] Figure 7 This is a schematic diagram of the twisting position change structure when the agricultural locomotive is driven to turn in an embodiment of the present utility model.

[0027] As shown in the figure, 1 is the main bracket, 2 is the articulated shaft, 3 is the fixing bolt, 4 is the suspension connecting frame, 5 is the U-shaped connecting support, 6 is the "п"-shaped slide, 7 is the sliding wall, 8 is the upper support, 9 is the transmission shaft, 10 is the lower support, 11 is the shockproof seat, 12 is the rib, 13 is the strip slide, 14 is the pulley, 15 is the rotating shaft II, 16 is the rotating shaft, 17 is the shockproof block, 18 is the block seat, 19 is the tightening nut II, 20 is the tightening nut I, 21 is the rotating shaft I, 22 is the arc surface, 23 is the transmission shaft, and 24 is the agricultural locomotive. DETAILED DESCRIPTION

[0028] Example 1:

[0029] With reference to the accompanying drawings, the structure of the preferred embodiment of the present utility model is described in detail as follows: an agricultural locomotive traction frame mainly includes a main bracket 1, a suspension connecting frame 4, and a U-shaped connecting support 5, one end of the U-shaped connecting support 5 is hinged to the middle of the suspension connecting frame 4, and the other end of the U-shaped connecting support 5 is hinged to the main bracket 1;

[0030] A "п"-shaped slide 6 is provided above the U-shaped connecting support 5, and a strip-shaped slide 13 is provided on the "п"-shaped slide 6. A transmission support is provided at the end of the main bracket 1 close to the U-shaped connecting support 5. The transmission support is divided into an upper support 8 and a lower support 10. The upper support 8 and the lower support 10 are both tubular cylinders. A rotating shaft 16 is provided in the lower support 10. The upper part of the rotating shaft 16 is connected to the lower support 10 through a bearing, and the lower part of the rotating shaft 16 is fixedly connected to the main bracket 1; the upper support 8 is arranged horizontally, and a transmission coupling 9 is provided inside, and the transmission coupling 9 is connected to the upper support 8 through a bearing;

[0031] The front part of the transmission support is provided with a forward sliding wall 7, and the front end of the sliding wall 7 is provided with a pulley 14, which extends into the strip chute 13 on the "п"-shaped slide 6, and the pulley 14 can slide back and forth in the strip chute 13;

[0032] The transmission support is provided with a shock-absorbing seat 11 at the rear, and a shock-absorbing block 17 is provided at the front end of the shock-absorbing seat 11. The shock-absorbing block 17 is made of an elastic material such as rubber. The shock-absorbing block 17 extends forward and elastically contacts the outer wall of the lower support 10. The contact surface between the shock-absorbing block 17 and the outer wall of the lower support 10 is in the shape of an arc surface 22.

[0033] The shockproof seat 11 is a tubular cylinder, the shockproof block 17 is connected to a block seat 18, the block seat 18 is slidably connected to the inner wall of the shockproof seat 11, and the upper and rear parts of the shockproof seat 11 are provided with tightening nuts, which pass through the outer wall of the shockproof seat 11, contact the block seat 18, and tighten the block seat 18 downward and forward.

[0034] When the traction locomotive drives the traction frame of the present invention to turn, the suspension connecting frame 4 drives the U-shaped connecting support 5 to rotate a certain angle together, forming an angle with the main frame 1. The lower part of the entire transmission support is hinged to the main frame 1 via a rotating shaft 16. The upper transmission shaft 23 is connected to the transmission coupling 9. The pulley 14 on the slide arm can slide back and forth in the strip chute. When the suspension connecting frame 4 drives the U-shaped connecting support 5 to rotate together, the upper transmission support rotates, causing the pulley 14 to slide in the strip chute, causing the transmission coupling 9 to drive the transmission shaft 23 to rotate as well, forming a larger transmission angle.

[0035] The transmission support is provided with a shock-absorbing seat 11 at the rear, and a shock-absorbing block 17 at the front end of the shock-absorbing seat 11. The shock-absorbing block 17 is made of elastic material and extends forward to elastically contact the outer wall of the lower support 10. The purpose is to use the shock-absorbing block 17 to contact the lower support 10 to form friction resistance, making the entire transmission support rotate more smoothly during rotation and playing a role in shock absorption.

[0036] Example 2:

[0037] Compared with Example 1, this embodiment is different in that a rib 12 for reinforcement is provided on the sliding wall 7 .

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modification, equivalent replacement or improvement within the spirit of the present invention is included in the scope of the claims of the present invention.

Claims

1. An agricultural locomotive traction frame, characterized in that The U-shaped support frame is hinged to the middle of the suspension connection frame at one end, and the other end of the U-shaped support frame is hinged to the main support. A "п"-shaped slide is provided above the U-shaped support, and a strip slide is provided on the "п"-shaped slide. A transmission support is provided at the end of the main support close to the U-shaped support. The transmission support is divided into an upper support and a lower support. Both the upper support and the lower support are tubular cylinders. A rotating shaft is provided in the lower support. The upper part of the rotating shaft is connected to the lower support through a bearing, and the lower part of the rotating shaft is fixedly connected to the main support. The upper support is arranged horizontally, and a transmission coupling is provided inside. The transmission coupling is connected to the upper support through a bearing.

2. The agricultural locomotive traction frame according to claim 1, characterized in that The front part of the transmission support is provided with a forward sliding wall, the front end of the sliding wall is provided with a pulley, the pulley extends into the strip slide groove on the "п"-shaped slide, and the pulley can slide back and forth in the strip slide groove; An anti-vibration seat is provided at the rear of the transmission support, and an anti-vibration block is provided at the front end of the anti-vibration seat. The anti-vibration block extends forward and is in elastic contact with the outer wall of the lower support.

3. The agricultural locomotive traction frame according to claim 2, characterized in that , ribs for reinforcement are provided on the sliding wall.

4. The agricultural locomotive traction frame according to claim 2 or 3, characterized in that The shockproof seat is a tubular cylinder, the shockproof block is connected to a block seat, the block seat is slidably connected to the inner wall of the shockproof seat, and the upper and rear parts of the shockproof seat are provided with tightening nuts, which pass through the outer wall of the shockproof seat, contact the block seat, and tighten the block seat downward and forward.

5. The agricultural locomotive traction frame according to claim 2 or 3, characterized in that The anti-vibration block is made of elastic material.

6. The agricultural locomotive traction frame according to claim 4, characterized in that The anti-vibration block is made of elastic material.

7. The agricultural locomotive traction frame according to claim 6, characterized in that The contact surface between the anti-vibration block and the outer wall of the lower support is in the shape of an arc surface.

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