A tractor suspension mechanism

Abstract

The utility model discloses a kind of suspension mechanisms of tractor, including top plate, the bottom surface of top plate is fixed with two side frames, the outside of two side frames is respectively hingedly connected with four support arms, the end of support arm is equipped with recess, support leg is slidably connected in recess, the end of support leg is fixed with two fixed plates, common fixed roller between two fixed plates, the inside of side frame is fixedly connected with first limit plate, outside is fixedly connected with second limit plate, the outside of support arm is fixedly connected with first locking piece, the hinge of support arm with second locking piece is equipped with side frame.

Description

Technical Field

[0001] This utility model relates to the field of tractor technology, and in particular to a suspension mechanism for a tractor. Background Technology

[0002] Patent publication number CN216391978U discloses a suspension transmission mechanism for a tractor-powered agricultural implement, including an agricultural implement cover plate located above the ground. V-shaped fixing brackets are fixedly installed on both the front and rear sides of the lower surface of the agricultural implement cover plate. A rotatable rotating shaft passes through the bottom of the V-shaped fixing bracket, and a pulverizing blade is fixedly installed on the outer surface of the rotating shaft. An L-shaped bracket is fixedly installed in the middle of the upper surface of the agricultural implement cover plate. This suspension transmission mechanism for the tractor-powered agricultural implement uses external power to drive a ring-shaped rotating tube to rotate, driving a reduction gear to mesh with a rotating gear for deceleration. This effectively reduces the rotational speed of the rotating gear while increasing its torque, allowing the rotating gear to more powerfully drive the pulverizing blade for pulverizing operations, further improving the pulverizing effect on farmland, facilitating better use, and effectively improving ease of use.

[0003] However, the tractor suspension mechanism in this patent is quite bulky, requiring multiple people to work together to move it, which is time-consuming and laborious. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a suspension mechanism for tractors.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a suspension mechanism for a tractor, including a top plate, two side frames symmetrically fixed to the bottom surface of the top plate, four support arms symmetrically hinged to the outer sides of the two side frames respectively, a groove provided at the end of each support arm, a support leg slidably connected in the groove, two fixing plates symmetrically fixed at the end of each support leg, a roller being fixed between the two fixing plates, a first limiting plate fixedly connected to the inner side of each side frame, a second limiting plate fixedly connected to the outer side of each side frame, a first locking member fixedly connected to the outer side of each support arm, and a second locking member provided at the hinge point between the support arm and the side frame.

[0006] As a further description of the above technical solution: the first locking member includes two first sleeves symmetrically fixed to the outside of the support arm. Two through holes communicating with the first sleeves are symmetrically opened on the inner wall of the groove. A pressure block is slidably inserted in the first sleeve and slides through the through hole. A storage groove is opened on the outside of the support leg. A positioning pin is slidably connected in the storage groove. One end of the positioning pin is inserted into one of the through holes. A guide groove is opened on the inner wall of the groove. A guide block is slidably connected in the guide groove and is fixedly connected to the support leg.

[0007] As a further description of the above technical solution: two fourth sliding grooves are symmetrically opened on the inner wall of the first sleeve, a fourth slider is slidably connected in the fourth sliding groove, the fourth slider is fixedly connected to the pressure block, and a fourth spring is fixed together between the fourth sliding groove and the fourth slider.

[0008] As a further description of the above technical solution: two third sliding grooves are symmetrically opened on the inner wall of the storage groove, a third slider is slidably connected in the third sliding groove, the third slider is fixedly connected to the positioning pin, and a third spring is fixed together between the inner wall of the storage groove and the positioning pin.

[0009] As a further description of the above technical solution: the second locking member includes a second sleeve fixedly connected to the outside of the side frame, a sleeve hole is opened on the outside of the support arm, the second sleeve is rotatably fitted into the sleeve hole, two trapezoidal blocks are symmetrically slidably connected inside the second sleeve, a positioning block is fixedly connected to the end of each of the two trapezoidal blocks, the positioning block slides through the second sleeve, two pairs of circumferentially distributed positioning grooves are opened on the inner wall of the sleeve hole, the two positioning blocks are inserted into one pair of positioning grooves, a conical block is abutted between the inclined surfaces of the two trapezoidal blocks, a pull rod is fixedly connected to the end of the conical block, the pull rod is slidably connected inside the second sleeve, and a pull block is fixedly connected to the end of the pull rod.

[0010] As a further description of the above technical solution: two positioning holes are symmetrically opened on the inner wall of the second sleeve, the positioning block is slidably inserted into the positioning holes, two first sliding grooves are symmetrically opened on the inner wall of the positioning block, a first slider is slidably connected in the first sliding groove, the first slider is fixedly connected to the positioning block, and a first spring in a compressed state is fixed between the first slider and the inner wall of the first sliding groove.

[0011] As a further description of the above technical solution: two second sliding grooves are symmetrically opened on the inner wall of the second sleeve, a second slider is slidably connected in the second sliding groove, the second slider is fixedly connected to the pull rod, and a second spring is fixed together between the inner wall of the second sliding groove and the second slider.

[0012] This utility model has the following beneficial effects:

[0013] 1. Compared with existing technologies, the suspension mechanism of this tractor, through the rollers installed at the ends of the support legs, allows the suspension mechanism to move easily when not in operation, eliminating the need for multiple people to carry it, saving manpower, and improving transportation efficiency.

[0014] 2. Compared with the prior art, the suspension mechanism of this tractor allows the support leg to slide and extend within the groove and be fixed in position by the first locking member. The support arm is connected to the side frame through a hinge structure and, together with the second locking member, can be folded and stored, which is convenient for transportation or storage and reduces the space occupied. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of a tractor suspension mechanism proposed in this utility model;

[0016] Figure 2 This utility model proposes a suspension mechanism for a tractor. Figure 1 Enlarged view of the structure at point A in the middle;

[0017] Figure 3 This is a top sectional view of the connection between the support arm and the side frame of the suspension mechanism of a tractor according to the present invention.

[0018] Figure 4 This utility model proposes a suspension mechanism for a tractor. Figure 3 Enlarged view of the structure at point B;

[0019] Figure 5 This utility model proposes a suspension mechanism for a tractor. Figure 3 Enlarged view of the structure at point C;

[0020] Figure 6 This utility model proposes a suspension mechanism for a tractor. Figure 3 Enlarged view of the structure at point D.

[0021] Legend:

[0022] 1. Top plate; 2. Side frame; 3. Support arm; 4. Support leg; 5. Roller; 6. Fixing plate; 7. Pressure block; 8. First sleeve; 9. First limiting plate; 10. Pull block; 11. Second limiting plate; 12. Guide groove; 13. Guide block; 14. Conical block; 15. Second sleeve; 16. Sleeve hole; 17. Trapezoidal block; 18. Pull rod; 19. First slide groove; 20. First spring; 21. First slider; 22. Positioning groove; 23. Positioning block; 24. Positioning hole; 25. Second slide groove; 26. Second slider; 27. Second spring; 28. Third slide groove; 29. ​​Third spring; 30. Storage groove; 31. Third slider; 32. Positioning pin; 33. Through hole; 34. Fourth slide groove; 35. Fourth spring; 36. Fourth slider. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figures 1 to 6 The present invention provides a suspension mechanism for a tractor, comprising a top plate 1, two side frames 2 symmetrically fixed to the bottom surface of the top plate 1, four support arms 3 symmetrically hinged to the outer sides of the two side frames 2 respectively, the end of the support arm 3 having a groove, a support leg 4 slidably connected in the groove, two fixing plates 6 symmetrically fixed to the end of the support leg 4, a roller 5 being fixed between the two fixing plates 6, a first limiting plate 9 fixedly connected to the inner side of the side frame 2, a second limiting plate 11 fixedly connected to the outer side, a first locking member fixedly connected to the outer side of the support arm 3, and a second locking member provided at the hinge point between the support arm 3 and the side frame 2;

[0025] The first locking element includes two first sleeves 8 symmetrically fixed to the outside of the support arm 3. Two through holes 33 symmetrically opened on the inner wall of the groove, communicating with the first sleeves 8. A pressure block 7 slides through the first sleeve 8. Two fourth sliding grooves 34 symmetrically opened on the inner wall of the first sleeve 8. A fourth slider 36 is slidably connected within the fourth sliding groove 34. The fourth slider 36 is fixedly connected to the pressure block 7. A fourth spring 35 is fixed between the fourth sliding groove 34 and the fourth slider 36. The pressure block 7 slides through the through hole 33. A retaining wall is opened on the outside of the support leg 4. The storage groove 30 has a slidably connected positioning pin 32 inside. One end of the positioning pin 32 is inserted into one of the through holes 33. The inner wall of the groove has a guide groove 12. The guide block 13 is slidably connected inside the guide groove 12. The guide block 13 is fixedly connected to the support leg 4. The inner wall of the storage groove 30 has two symmetrically opened third sliding grooves 28. The third sliding block 31 is slidably connected inside the third sliding groove 28. The third sliding block 31 is fixedly connected to the positioning pin 32. The inner wall of the storage groove 30 and the positioning pin 32 jointly fix a third spring 29.

[0026] The second locking element includes a second sleeve 15 fixedly connected to the outside of the side frame 2. A sleeve hole 16 is opened on the outside of the support arm 3. The second sleeve 15 is rotatably fitted into the sleeve hole 16. Two trapezoidal blocks 17 are symmetrically slidably connected inside the second sleeve 15. A positioning block 23 is fixedly connected to the end of each of the two trapezoidal blocks 17. The positioning block 23 slides through the second sleeve 15. Two pairs of circumferentially distributed positioning grooves 22 are opened on the inner wall of the sleeve hole 16. The two positioning blocks 23 are inserted into one pair of positioning grooves 22. Two positioning holes 24 are symmetrically opened on the inner wall of the second sleeve 15. The positioning blocks 23 slide through the positioning holes 24. Two first sliding grooves 19 are symmetrically opened on the inner wall of the positioning blocks 23. The first slider 21 is slidably connected to the inner wall of the first groove 19. The first slider 21 is fixedly connected to the positioning block 23. The first spring 20 in a compressed state is fixed between the first slider 21 and the inner wall of the first groove 19. The inclined surfaces of the two trapezoidal blocks 17 abut against a conical block 14. The end of the conical block 14 is fixedly connected to a pull rod 18. The pull rod 18 is slidably connected inside the second sleeve 15. The end of the pull rod 18 is fixedly connected to a pull block 10. Two second grooves 25 are symmetrically opened on the inner wall of the second sleeve 15. The second slider 26 is slidably connected inside the second groove 25. The second slider 26 is fixedly connected to the pull rod 18. The second spring 27 is fixed between the inner wall of the second groove 25 and the second slider 26.

[0027] Working principle: In use, firstly, pull the outer pull block 10. The pull block 10 drives the conical block 14 to move via the pull rod 18, causing the conical block 14 to separate from the inclined surfaces of the two trapezoidal blocks 17. The second spring 27 is compressed, and the first spring 20, which is in a compressed state, returns to its original position. When the first spring 20 returns to its original position, the positioning block 23 leaves the positioning groove 22 and retracts into the positioning hole 24, and then flips downward, so that the support arm 3 is in a vertical state. At the same time, the side of the support arm 3 abuts against the second limiting plate 11, which limits the support arm 3. At this time, the two positioning holes 24 are aligned with the other pair of positioning grooves 22 inside the sleeve hole 16. Then, the pull block 10 is released, and the second spring 27, which is in a compressed state, returns to its original position. When the second spring 27 returns to its original position, it pushes the pull rod 18 and the conical block 14 toward the inside of the second sleeve 15, so that the conical block 14 pushes the two trapezoidal blocks 17 to move in opposite directions, so that the positioning block 23 moves from the positioning hole 24 into the positioning groove 22. At the same time, the first spring 20 is compressed. Then, the pressure block 7 is pressed, and the pressure block 7 pushes the positioning pin 32 from the through hole 33 into the receiving groove 30. Inside, the third spring 29 and the fourth spring 35 are compressed simultaneously, and then the support leg 4 is pulled out from the groove in the support arm 3, so that the positioning pin 32 is aligned with another through hole 33. When the positioning pin 32 is aligned with another through hole 33, the fourth spring 35, which is in a compressed state, returns to its original position. When the fourth spring 35 returns to its original position, it pushes the positioning pin 32 out of the storage groove 30 and inserts it into the corresponding through hole 33. Then the tractor suspension can be moved by the roller 5. When it is moved to the desired position and installed with the tractor, press the pressure block 7. The pressure block 7 pushes the positioning pin 32 into the storage groove 30, then the support leg 4 is pushed back into the groove inside the support arm 3, and then the positioning pin 32 is inserted into the corresponding through hole 33. Then the pull block 10 is pulled outward so that the positioning block 23 is retracted from the positioning groove 22 into the positioning hole 24. Then the support arm 3 is flipped upward so that the side of the support arm 3 abuts against the outside of the first limiting plate 9. Then the pull block 10 is released, and the positioning block 23 extends out from the positioning hole 24 and is inserted into the corresponding positioning groove 22, thus completing the folding and storage of the roller 5.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A suspension mechanism for a tractor, comprising a top plate (1), characterized in that: Two side frames (2) are symmetrically fixed to the bottom surface of the top plate (1). Four support arms (3) are symmetrically hinged to the outer sides of the two side frames (2). The end of the support arm (3) is provided with a groove. The support leg (4) is slidably connected in the groove. Two fixing plates (6) are symmetrically fixed to the end of the support leg (4). Rollers (5) are fixed between the two fixing plates (6). The inner side of the side frame (2) is fixedly connected to a first limiting plate (9), and the outer side is fixedly connected to a second limiting plate (11). The outer side of the support arm (3) is fixedly connected to a first locking member. A second locking member is provided at the hinge of the support arm (3) and the side frame (2).

2. The suspension mechanism of a tractor according to claim 1, characterized in that: The first locking component includes two first sleeves (8) symmetrically fixed to the outside of the support arm (3). The inner wall of the groove is symmetrically opened with two through holes (33) communicating with the first sleeves (8). A pressure block (7) is slidably inserted in the first sleeve (8) and the pressure block (7) slides through the through hole (33). A storage groove (30) is opened on the outside of the support leg (4). A positioning pin (32) is slidably connected in the storage groove (30). One end of the positioning pin (32) is inserted into one of the through holes (33). A guide groove (12) is opened on the inner wall of the groove. A guide block (13) is slidably connected in the guide groove (12). The guide block (13) is fixedly connected to the support leg (4).

3. The suspension mechanism of a tractor according to claim 2, characterized in that: Two fourth sliding grooves (34) are symmetrically opened on the inner wall of the first sleeve (8). A fourth slider (36) is slidably connected in the fourth sliding groove (34). The fourth slider (36) is fixedly connected to the pressure block (7). A fourth spring (35) is fixed together between the fourth sliding groove (34) and the fourth slider (36).

4. The suspension mechanism of a tractor according to claim 2, characterized in that: The inner wall of the storage groove (30) is symmetrically provided with two third sliding grooves (28). A third slider (31) is slidably connected in the third sliding groove (28). The third slider (31) is fixedly connected to the positioning pin (32). A third spring (29) is fixed between the inner wall of the storage groove (30) and the positioning pin (32).

5. The suspension mechanism of a tractor according to claim 1, characterized in that: The second locking component includes a second sleeve (15) fixedly connected to the outside of the side frame (2), a sleeve hole (16) is opened on the outside of the support arm (3), the second sleeve (15) is rotatably sleeved in the sleeve hole (16), two trapezoidal blocks (17) are symmetrically slidably connected in the second sleeve (15), a positioning block (23) is fixedly connected to the end of each of the two trapezoidal blocks (17), the positioning block (23) slides through the second sleeve (15), two pairs of circumferentially distributed positioning grooves (22) are opened on the inner wall of the sleeve hole (16), the two positioning blocks (23) are inserted into one pair of positioning grooves (22), the inclined surfaces of the two trapezoidal blocks (17) abut against a conical block (14), the end of the conical block (14) is fixedly connected to a pull rod (18), the pull rod (18) is slidably connected in the second sleeve (15), and the end of the pull rod (18) is fixedly connected to a pull block (10).

6. The suspension mechanism of a tractor according to claim 5, characterized in that: The inner wall of the second sleeve (15) is symmetrically provided with two positioning holes (24). The positioning block (23) is slidably inserted into the positioning hole (24). The inner wall of the positioning block (23) is symmetrically provided with two first sliding grooves (19). The first sliding block (21) is slidably connected in the first sliding groove (19). The first sliding block (21) is fixedly connected to the positioning block (23). The first spring (20) in a compressed state is fixed between the first sliding block (21) and the inner wall of the first sliding groove (19).

7. The suspension mechanism of a tractor according to claim 5, characterized in that: The inner wall of the second sleeve (15) is symmetrically provided with two second sliding grooves (25), and the second slider (26) is slidably connected in the second sliding groove (25). The second slider (26) is fixedly connected to the pull rod (18), and the second spring (27) is fixed together between the inner wall of the second sliding groove (25) and the second slider (26).

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