Agricultural machinery four-point hitch anti-lifting device

Abstract

The utility model relates to agricultural technology field especially relates to a kind of agricultural machinery four-point hitch anti-tilting device, including vehicle frame, suspension mechanism and draw bar.The vehicle frame includes two groups of symmetrically arranged vehicle frame plates, and the front and rear ends of two groups of the vehicle frame plate are respectively provided with front mounting groove and rear mounting groove for installing front wheel axle and rear wheel axle.The suspension mechanism is arranged at the rear end of the vehicle frame, and the front end top of the suspension mechanism is connected with the rear end of the vehicle frame plate, and the rear end of the suspension mechanism is connected with the functional assembly of agricultural machinery.The draw bar is obliquely arranged below the vehicle frame plate and rear wheel axle, and the upper end of the draw bar is connected with the bottom of the vehicle frame plate, and the connection position of the draw bar and vehicle frame plate is located between the front mounting groove and rear mounting groove, and the lower end of the draw bar is connected with the front end bottom of the suspension mechanism.

Description

Technical Field

[0001] This utility model relates to the field of agricultural technology, and more specifically, to a four-point tie-down anti-tilting device for agricultural machinery. Background Technology

[0002] Currently, when heavy agricultural machinery such as high-horsepower tractors and large harvesters are performing heavy-duty operations in the field (such as deep tillage and plowing), the front end of the machinery is prone to severe "nose-up" due to the huge traction resistance. This not only leads to a decrease in front wheel traction and steering failure, endangering operational safety, but also causes uneven stress on the machinery chassis, accelerates fatigue damage to parts, and affects the quality and efficiency of operations.

[0003] In existing technologies, counterweights are often placed at the front of agricultural machinery to suppress wheel spin. However, this method increases the overall weight and fuel consumption, and its effectiveness under heavy load conditions is limited. Another approach is to improve the suspension system, but this is complex and costly. Therefore, there is an urgent need for a specialized device that is simple in structure, has a stable connection, and can effectively prevent agricultural machinery from wheel spin. Summary of the Invention

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide an agricultural machinery four-point tie-down anti-tilting device that can solve the above problems.

[0005] The objective of this utility model is achieved through the following technical solution: A four-point anti-tilting device for agricultural machinery includes a frame, a suspension mechanism, and a tie rod. The frame includes two symmetrically arranged frame plates, with front and rear mounting slots for mounting the front and rear wheel axles, respectively, at their front and rear ends. The suspension mechanism is located at the rear end of the frame, with its front top connected to the rear end of the frame plate, and its rear end connected to a functional component of the agricultural machinery. The tie rod is inclinedly positioned below the frame plate and the rear wheel axle, with its upper end connected to the bottom of the frame plate, and the connection point between the tie rod and the frame plate located between the front and rear mounting slots. The lower end of the tie rod is connected to the bottom of the front end of the suspension mechanism.

[0006] Furthermore, the bottom of the frame plate is provided with multiple tie rod adjustment points, all of which are located between the front mounting slot and the rear mounting slot. The end of the tie rod away from the suspension mechanism can be selectively connected to one of the tie rod adjustment points.

[0007] Furthermore, the frame plate has a double-layer structure, with the bottom of the outer plate protruding from the bottom of the inner plate. The bottom of the outer plate has a first adjustment hole at the pull bar adjustment point, and the inner side of the bottom of the inner plate has an adjustment ear plate fixed at the pull bar adjustment point. The adjustment ear plate has a second adjustment hole corresponding to the first adjustment hole.

[0008] Furthermore, the pull bar is a telescopic pull bar with adjustable length.

[0009] Furthermore, the telescopic pull rod includes a first pull rod, a second pull rod, and an adjusting bolt. The first pull rod has a square tube structure or a U-shaped structure. A first fixing hole is provided at one end of the first pull rod near the second pull rod. One end of the second pull rod is telescopically disposed inside the first pull rod, and multiple second fixing holes are provided on the second pull rod. The adjusting bolt is installed in the first fixing hole and the corresponding second mounting hole.

[0010] Furthermore, the suspension mechanism includes a connecting vertical plate and a connecting assembly. The connecting vertical plate is perpendicular to the forward direction of the agricultural machinery. The front end of the connecting vertical plate is provided with an upper connecting ear plate and a lower connecting ear plate. The upper connecting ear plate is connected to the rear end of the frame plate, and the lower connecting ear plate is connected to the lower end of the tie rod. The connecting assembly is located at the rear end of the connecting vertical plate.

[0011] Furthermore, the connecting assembly includes a connecting shaft, an upper connecting rod, a lower connecting rod, a telescopic rod, and a connecting vertical rod; the connecting shaft is fixed to the upper end of the connecting vertical plate; the front ends of the two upper connecting rods are rotatably sleeved on the connecting shaft; the front end of the lower connecting rod is hinged to the bottom of the connecting vertical plate, and the rear end is connected to the functional components of the agricultural machinery; one end of the telescopic rod is hinged to the middle of the upper connecting rod, and the other end is hinged to the connecting vertical plate and located above the lower connecting rod; the upper end of the connecting vertical rod is hinged to the rear end of the upper connecting rod, and the lower end is hinged to the middle of the lower connecting rod.

[0012] Furthermore, the telescopic rod is a hydraulic rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are: The four-point anti-tilting device for agricultural machinery in this utility model uses a tie bar installed between the bottom of the frame and the suspension mechanism. When the functional components of the agricultural machinery, such as the rotary tiller, are subjected to heavy loads and huge traction forces during the movement of the agricultural machinery, causing the front of the machinery to tend to tilt, the tie bar, due to its tilted setting, will apply a downward pulling force to the frame, thereby effectively preventing the front of the agricultural machinery from tilting.

[0014] The four-point tie-down anti-tilting device for agricultural machinery in this utility model has multiple tie rod adjustment points set at the bottom of the frame plate. The installation position of the front end of the tie rod can be adjusted according to the actual load of the agricultural machinery during operation. Thus, in actual use, the tie rod can apply sufficient downward force to the frame to prevent the front of the agricultural machinery from tilting up. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the four-point tie-down anti-tilting device for agricultural machinery in this utility model.

[0016] Figure 2 This is a schematic diagram of the overall structure of the four-point tie-down anti-tilting device for agricultural machinery in this utility model from another perspective.

[0017] Figure 3 This is a schematic diagram of the overall structure of the four-point anti-tilting device for agricultural machinery, which is another embodiment of this utility model.

[0018] Figure 4 yes Figure 3 A structural diagram of another state of the lever in the diagram.

[0019] In the diagram: 1. Frame plate; 2. Rear wheel axle; 3. Front mounting slot; 4. Rear mounting slot; 5. Tie bar; 51. First tie rod; 52. Second tie rod; 53. Adjusting bolt; 54. Second fixing hole; 6. First adjusting hole; 7. Adjusting lug; 8. Connecting vertical plate; 9. Upper connecting lug; 10. Lower connecting lug; 11. Connecting shaft; 12. Upper connecting rod; 13. Lower connecting rod; 14. Telescopic rod; 15. Connecting vertical rod. Detailed Implementation

[0020] 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. Example

[0021] like Figures 1-4As shown, the four-point anti-tilting device for agricultural machinery in this embodiment includes a frame, a suspension mechanism, and a tie rod 5. The frame includes two sets of symmetrically arranged frame plates 1. The front and rear ends of the two sets of frame plates 1 are respectively provided with a front mounting groove 3 and a rear mounting groove 4. The front mounting groove 3 is used to install the front wheel axle, and the rear mounting groove 4 is used to install the rear wheel axle 2. The suspension mechanism is located at the rear end of the frame. The top of the front end of the suspension mechanism is connected to the rear end of the frame plate 1, and the rear end of the suspension mechanism is connected to the functional components of the agricultural machinery. The tie rod 5 is inclinedly arranged below the frame plate 1 and the rear wheel axle 2, and the upper end of the tie rod 5 is connected to the bottom of the frame plate 1. The connection position between the tie rod 5 and the frame plate 1 is located between the front mounting groove 3 and the rear mounting groove 4, and the lower end of the tie rod 5 is connected to the bottom of the front end of the suspension mechanism.

[0022] By installing a tie rod 5 between the bottom of the frame and the suspension mechanism, when the functional components of agricultural machinery, such as the rotary tiller, are subjected to heavy loads and huge traction during the movement of the agricultural machinery, causing the front of the agricultural machinery to tend to lift up, the tie rod 5, being tilted, will exert a downward pull on the frame, thereby effectively preventing the front of the agricultural machinery from lifting up.

[0023] In this embodiment, the bottom of the frame plate 1 is provided with multiple tie rod 5 adjustment points, all of which are located between the front mounting groove 3 and the rear mounting groove 4. The end of the tie rod 5 away from the suspension mechanism can be selectively connected to one of the tie rod 5 adjustment points. Tie rods 5 of appropriate length are equipped according to different tie rod 5 adjustment points, thereby enabling the selection of a suitable tie rod 5 length and its installation on a suitable tie rod 5 adjustment point based on the actual load of the agricultural machinery during operation.

[0024] Specifically, in this embodiment, the frame plate 1 is a double-layer plate structure, and the inner and outer plates can be fixedly connected by bolts or other structures. The bottom of the outer plate protrudes from the bottom of the inner plate, and a first adjustment hole 6 is provided at the adjustment point of the pull rod 5 on the bottom of the outer plate. Therefore, multiple first adjustment holes 6 are provided on the bottom of the outer plate. An adjustment ear plate 7 is fixed at the adjustment point of the pull rod 5 on the inner side of the bottom of the inner plate. Therefore, multiple adjustment ear plates 7 are fixed on the bottom of the inner plate. The adjustment ear plate 7 is provided with a second adjustment hole corresponding to the first adjustment hole 6. The front end of the pull rod is inserted between the outer plate and the adjustment ear plate 7, and is connected to the outer plate and the adjustment ear plate 7 by bolts or pins or other structures.

[0025] In another embodiment, the pull rod 5 is a telescopic pull rod 5 with adjustable length. Specifically, the telescopic pull rod 5 includes a first pull rod 51, a second pull rod 52, and an adjusting bolt 53. The first pull rod 51 has a square tube structure or a U-shaped structure. A first fixing hole is provided at the end of the first pull rod 51 near the second pull rod 52. One end of the second pull rod 52 is telescopically disposed inside the first pull rod 51, and multiple second fixing holes 54 are provided on the second pull rod 52. The adjusting bolt 53 is installed in the first fixing hole and the corresponding second fixing hole. The end of the first pull rod 51 away from the second pull rod 52 is connected to the suspension mechanism, and the end of the second pull rod 52 away from the first pull rod 51 is inserted between the outer layer plate and the adjusting ear plate 7.

[0026] Preferably, the first adjustment holes 6 are numbered from smallest to largest according to their distance from the rear end of the frame plate 1. Correspondingly, the second fixing holes 54 of the second tie rod 52 are numbered so that the length of the tie rod 5 when the adjusting bolt 53 is installed in a numbered second fixing hole 54 is just right for installation in the corresponding numbered first adjustment hole 6. By providing the telescopic tie rod 5, its length can be adjusted according to its installation position, facilitating use.

[0027] In this embodiment, the suspension mechanism includes a connecting vertical plate 8 and a connecting assembly. The connecting vertical plate 8 is perpendicular to the forward direction of the agricultural machinery. The front end of the connecting vertical plate 8 is provided with an upper connecting ear plate 9 and a lower connecting ear plate 10. The upper connecting ear plate 9 is connected to the rear end of the frame plate 1 by bolts, pins or other components. The lower connecting ear plate 10 is connected to the lower end of the pull bar 5 by bolts, pins or other components. The connecting assembly is located at the rear end of the connecting vertical plate 8.

[0028] Specifically, the connecting assembly includes a connecting shaft 11, an upper connecting rod 12, a lower connecting rod 13, a telescopic rod 14, and a connecting vertical rod 15. The connecting shaft 11 is fixed to the upper end of the connecting vertical plate 8. The front ends of the two upper connecting rods 12 are rotatably sleeved on the connecting shaft 11. The front end of the lower connecting rod 13 is hinged to the bottom of the connecting vertical plate 8, and the rear end is connected to the functional components of the agricultural machinery. One end of the telescopic rod 14 is hinged to the middle of the upper connecting rod 12, and the other end is hinged to the connecting vertical plate 8 and located above the lower connecting rod 13. The upper end of the connecting vertical rod 15 is hinged to the rear end of the upper connecting rod 12, and the lower end is hinged to the middle of the lower connecting rod 13. The telescopic rod 14 is a hydraulic rod.

[0029] The working principle of the four-point anti-tilting device for agricultural machinery in this embodiment is as follows: The four-point anti-tilting device for agricultural machinery in this embodiment uses a tie bar 5 installed between the bottom of the frame and the suspension mechanism. When the functional components of the agricultural machinery, such as the rotary tiller, are subjected to heavy loads and huge traction forces during the movement of the agricultural machinery, causing the front of the agricultural machinery to tend to tilt, the tie bar 5 is tilted and will apply a downward pulling force to the frame, thereby effectively preventing the front of the agricultural machinery from tilting.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A four-point anti-tilting device for agricultural machinery, characterized in that, include: The frame includes two sets of symmetrically arranged frame plates (1), and the front and rear ends of the two sets of frame plates (1) are respectively provided with front mounting grooves (3) and rear mounting grooves (4) for mounting the front wheel axle and the rear wheel axle (2). The suspension mechanism is located at the rear end of the frame, the top of the front end of the suspension mechanism is connected to the rear end of the frame plate (1), and the rear end of the suspension mechanism is connected to the functional components of the agricultural machinery. as well as The tie rod (5) is inclinedly disposed below the frame plate (1) and the rear wheel axle (2), and the upper end of the tie rod (5) is connected to the bottom of the frame plate (1), and the connection position of the tie rod (5) and the frame plate (1) is located between the front mounting groove (3) and the rear mounting groove (4), and the lower end of the tie rod (5) is connected to the bottom of the front end of the suspension mechanism.

2. The agricultural machinery four-point tie-down anti-tilting device according to claim 1, characterized in that, The bottom of the frame plate (1) is provided with multiple tie rod (5) adjustment points, and the multiple tie rod (5) adjustment points are located between the front mounting groove (3) and the rear mounting groove (4). The end of the tie rod (5) away from the suspension mechanism can be selectively connected to one of the tie rod (5) adjustment points.

3. The agricultural machinery four-point tie-down anti-tilting device according to claim 2, characterized in that, The frame plate (1) is a double-layer plate structure. The bottom of the outer plate protrudes from the bottom of the inner plate. The bottom of the outer plate is provided with a first adjustment hole (6) at the adjustment point of the pull bar (5). The inner side of the bottom of the inner plate is fixed with an adjustment ear plate (7) at the adjustment point of the pull bar (5). The adjustment ear plate (7) is provided with a second adjustment hole corresponding to the first adjustment hole (6).

4. The agricultural machinery four-point tie-down anti-tilting device according to claim 3, characterized in that, The pull bar (5) is a telescopic pull bar (5) with adjustable length.

5. The agricultural machinery four-point tie-down anti-tilting device according to claim 4, characterized in that, The retractable pull rod (5) includes a first pull rod (51), a second pull rod (52), and an adjusting bolt (53). The first pull rod (51) has a square tube structure or a U-shaped structure. A first fixing hole is provided at one end of the first pull rod (51) near the second pull rod (52). One end of the second pull rod (52) is telescopically disposed inside the first pull rod (51), and multiple second fixing holes (54) are provided on the second pull rod (52). The adjusting bolt (53) is installed in the first fixing hole and the corresponding second mounting hole.

6. The agricultural machinery four-point tie-down anti-tilting device according to claim 1, characterized in that, The suspension mechanism includes a connecting vertical plate (8) and a connecting assembly. The connecting vertical plate (8) is perpendicular to the forward direction of the agricultural machinery. The front end of the connecting vertical plate (8) is provided with an upper connecting ear plate (9) and a lower connecting ear plate (10). The upper connecting ear plate (9) is connected to the rear end of the frame plate (1), and the lower connecting ear plate (10) is connected to the lower end of the pull bar (5). The connecting assembly is located at the rear end of the connecting vertical plate (8).

7. The agricultural machinery four-point tie-down anti-tilting device according to claim 6, characterized in that, The connecting assembly includes a connecting shaft (11), an upper connecting rod (12), a lower connecting rod (13), a telescopic rod (14), and a connecting vertical rod (15); the connecting shaft (11) is fixed to the upper end of the connecting vertical plate (8); the front ends of the two upper connecting rods (12) are rotatably sleeved on the connecting shaft (11); the front end of the lower connecting rod (13) is hinged to the bottom of the connecting vertical plate (8), and the rear end is connected to the functional components of the agricultural machinery; one end of the telescopic rod (14) is hinged to the middle of the upper connecting rod (12), and the other end is hinged to the connecting vertical plate (8) and located above the lower connecting rod (13); the upper end of the connecting vertical rod (15) is hinged to the rear end of the upper connecting rod (12), and the lower end is hinged to the middle of the lower connecting rod (13).

8. The agricultural machinery four-point tie-down anti-tilting device according to claim 7, characterized in that, The telescopic rod (14) is a hydraulic rod.

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