Traction frame connecting structure of agricultural bulldozer

Abstract

The utility model provides an agricultural bulldozer traction frame connecting structure which comprises two traction plates, a rotating shaft plate is hinged to the top of one side of one traction plate, a first traction frame is hinged to the bottom of one side of the other traction plate, and a plurality of buffering mechanisms are installed on the side, away from the traction plates, of the rotating shaft plate in a penetrating mode. A second traction frame is fixedly installed at the end, located outside the rotating shaft plate, of the buffering mechanism. In the traction process of the bulldozer, the first traction frame drags the buffer mechanism through connection of the second traction frame and the connecting pin shaft, when the buffer mechanism is stressed, the piston rod and the piston plate are driven by the mounting base to slide in the piston cylinder, and through cooperation of a through hole formed in the surface of the piston plate and hydraulic oil, the piston plate can slide in the piston cylinder. The hydraulic oil flows on the two sides of the piston plate, and the shape design of the through hole is matched with the elasticity of the spring, so that the situation that the device collides due to the distance or speed difference between the bulldozer and the trailer during dragging is avoided.

Description

Technical Field

[0001] This utility model relates to the field of bulldozer towing frames, and more particularly to a connecting structure for an agricultural bulldozer towing frame. Background Technology

[0002] As shown in the patent document with announcement number CN219411017U, the bulldozer tow frame is mainly used to connect the frame of the bulldozer and the trailer, so that the trailer can drive the bulldozer to move, which facilitates the transportation of the bulldozer.

[0003] In the above-mentioned reference case, the movable frame can slide outward by using the cooperation of the movable cavity and the sliding rod, thereby increasing the extension length of the second frame and facilitating connection with the trailer device; however, during the bulldozer towing process, due to the design of the sliding rod, the distance or speed difference between the bulldozer and the trailer can easily cause the towing frame to collide, which can easily lead to damage to the towing frame over time and affect its overall service life.

[0004] Therefore, it is necessary to provide a connecting structure for the towing frame of an agricultural bulldozer to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a connecting structure for the traction frame of an agricultural bulldozer.

[0006] This utility model provides a connecting structure for an agricultural bulldozer traction frame, comprising:

[0007] Two traction plates are provided. One traction plate has a pivot plate hinged to the top of one side, and the other traction plate has a first traction frame hinged to the bottom of one side. A plurality of buffer mechanisms are installed through the pivot plate on the side away from the traction plate. A second traction frame is fixedly installed at one end of each buffer mechanism located outside the pivot plate.

[0008] The buffer mechanism includes a piston cylinder that is installed through one side of the rotating shaft plate. One end of the piston cylinder is provided with a mounting seat. The mounting seat is fixedly connected to the side of the second traction frame near the rotating shaft plate. A buffer assembly is installed through the mounting seat and the piston cylinder to buffer the second traction frame when it is under force.

[0009] Preferably, the buffer assembly includes a piston plate slidably installed inside the piston cylinder, a piston rod fixedly installed on one side of the piston plate, the end of the piston rod away from the piston plate passing through the piston cylinder and fixedly connected to one side of the mounting base, a plurality of through holes being formed on the surface of the piston plate, a return spring fixedly installed on one side of the piston plate, the end of the return spring away from the piston plate being fixedly connected to the inner wall of the piston cylinder, and the interior of the piston cylinder being filled with hydraulic oil.

[0010] Preferably, the through hole is formed in an annular shape on the surface of the piston plate, and the shape of the through hole is conical.

[0011] Preferably, a connecting pin is installed through the surface of the second traction frame, and the second traction frame and the first traction frame are fixedly connected by the connecting pin.

[0012] Preferably, mounting plates are installed through both sides of the two traction plates, and the surface of the mounting plates is provided with a plurality of mounting holes.

[0013] Preferably, limit holes are provided on both sides of the surfaces of the two traction plates for fixing with bolts when the two traction plates are folded and stored.

[0014] Compared with related technologies, the agricultural bulldozer traction frame connection structure provided by this utility model has the following beneficial effects:

[0015] During bulldozer traction, the first traction frame uses the connection between the second traction frame and the connecting pin to drag the buffer mechanism. When the buffer mechanism is under force, the piston rod and piston plate slide inside the piston cylinder through the mounting seat. The through holes on the surface of the piston plate cooperate with the hydraulic oil to make the hydraulic oil flow on both sides of the piston plate. The shape design of the through holes cooperates with the elasticity of the spring to avoid collisions caused by the distance or speed difference between the bulldozer and the trailer during towing. Attached Figure Description

[0016] Figure 1 A schematic diagram of a preferred embodiment of this utility model;

[0017] Figure 2 A partial explosion structure diagram of a preferred embodiment of this utility model;

[0018] Figure 3 A schematic diagram of the buffer mechanism in a preferred embodiment of this utility model;

[0019] Figure 4 This is a schematic diagram of the mounting plate in a preferred embodiment of the present invention.

[0020] The following are the labels in the diagram: 1. Traction plate; 2. Rotary shaft plate; 3. First traction frame; 4. Buffer mechanism; 41. Piston cylinder; 42. Mounting seat; 43. Buffer assembly; 431. Piston plate; 432. Piston rod; 433. Through hole; 434. Return spring; 5. Second traction frame; 6. Connecting pin; 7. Mounting plate; 8. Limiting hole. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please refer to the following: Figures 1 to 4 An agricultural bulldozer traction frame connection structure, comprising:

[0023] Two traction plates 1 are provided. One traction plate 1 has a rotating shaft plate 2 hinged to its top side, and the other traction plate 1 has a first traction frame 3 hinged to its bottom side. Several buffer mechanisms 4 are installed through the rotating shaft plate 2 on the side away from the traction plate 1. A second traction frame 5 is fixedly installed at one end of each buffer mechanism 4 located outside the rotating shaft plate 2.

[0024] The buffer mechanism 4 includes a piston cylinder 41 that is installed through one side of the rotating shaft plate 2. One end of the piston cylinder 41 is provided with a mounting seat 42. The mounting seat 42 is fixedly connected to the side of the second traction frame 5 near the rotating shaft plate 2. A buffer assembly 43 is installed through the mounting seat 42 and the piston cylinder 41 to buffer the second traction frame 5 when it is under force.

[0025] refer to Figure 2 as well as Figure 3 As shown, the buffer assembly 43 includes a piston plate 431 slidably installed inside the piston cylinder 41. A piston rod 432 is fixedly installed on one side of the piston plate 431. The end of the piston rod 432 away from the piston plate 431 passes through the piston cylinder 41 and is fixedly connected to one side of the mounting base 42. Several through holes 433 are opened on the surface of the piston plate 431. A return spring 434 is fixedly installed on one side of the piston plate 431. The end of the return spring 434 away from the piston plate 431 is fixedly connected to the inner wall of the piston cylinder 41. The interior of the piston cylinder 41 is filled with hydraulic oil. The through holes 433 are annularly opened on the surface of the piston plate 431, and the shape of the through holes 433 is conical.

[0026] It should be noted that: the first traction frame 3 uses the connection between the second traction frame 5 and the connecting pin 6 to drag the buffer mechanism 4. When the buffer mechanism 4 is under force, the piston rod 432 and the piston plate 431 slide inside the piston cylinder 41 through the mounting seat 42. The through hole 433 on the surface of the piston plate 431 cooperates with the hydraulic oil, so that the hydraulic oil flows on both sides of the piston plate 431. The shape design of the through hole 433 cooperates with the elasticity of the spring to avoid the device from colliding with each other when the bulldozer is dragging.

[0027] refer to Figure 1 As shown in Figure 4, a connecting pin 6 is installed through the surface of the second traction frame 5, and the second traction frame 5 and the first traction frame 3 are fixedly connected by the connecting pin 6.

[0028] It should be noted that the first traction frame 3 and the second traction frame 5 can be connected to facilitate the separation of the first traction frame 3 and the second traction frame 5, making it convenient to install this device at the mounting points of bulldozers and trailers respectively.

[0029] refer to Figure 4 As shown, mounting plates 7 are installed through both sides of the surface of the two traction plates 1, and the surface of the mounting plates 7 is provided with several mounting holes.

[0030] It should be noted that the towing plate 1 can be easily installed at the mounting points of the bulldozer and trailer to facilitate towing of the bulldozer.

[0031] refer to Figure 4 As shown, limit holes 8 are provided on both sides of the surface of the two traction plates 1 for fixing with bolts when the two traction plates 1 are folded and stored.

[0032] It should be noted that when the first traction frame 3 and the second traction frame 5 are rotated and folded, the screw can be inserted into the limiting hole 8 to fix the device.

[0033] The working principle of the agricultural bulldozer traction frame connection structure provided by this utility model is as follows:

[0034] Two traction plates 1 are installed on the bulldozer and trailer respectively using mounting plates 7, and the first traction frame 3 and the second traction frame 5 are fixed by connecting pins 6. During the bulldozer's towing process, the first traction frame 3 drags the buffer mechanism 4 through the connection between the second traction frame 5 and the connecting pins 6. When the buffer mechanism 4 is under force, the piston rod 432 and the piston plate 431 slide inside the piston cylinder 41 through the mounting seat 42. The through holes 433 on the surface of the piston plate 431 cooperate with the hydraulic oil, so that the hydraulic oil flows on both sides of the piston plate 431. The shape design of the through holes 433 cooperates with the elasticity of the spring to avoid the entire device from colliding when the bulldozer is dragging.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An agricultural bulldozer traction frame connection structure characterized by comprising: include: Two traction plates (1), wherein a rotating shaft plate (2) is hinged to the top of one side of the traction plate (1), and a first traction frame (3) is hinged to the bottom of one side of the traction plate (1). Several buffer mechanisms (4) are installed through the rotating shaft plate (2) on the side away from the traction plate (1). A second traction frame (5) is fixedly installed at one end of the buffer mechanism (4) located outside the rotating shaft plate (2); wherein, The buffer mechanism (4) includes a piston cylinder (41) that is installed through one side of the rotating shaft plate (2). One end of the piston cylinder (41) is provided with a mounting seat (42). The mounting seat (42) is fixedly connected to the side of the second traction frame (5) near the rotating shaft plate (2). A buffer assembly (43) is installed through the mounting seat (42) and the piston cylinder (41) to buffer the second traction frame (5) when it is under force.

2. An agricultural tractor drawbar connection structure according to claim 1, characterised in that, The buffer assembly (43) includes a piston plate (431) slidably mounted inside the piston cylinder (41). A piston rod (432) is fixedly mounted on one side of the piston plate (431). The end of the piston rod (432) away from the piston plate (431) passes through the piston cylinder (41) and is fixedly connected to one side of the mounting base (42). A plurality of through holes (433) are opened on the surface of the piston plate (431). A return spring (434) is fixedly mounted on one side of the piston plate (431). The end of the return spring (434) away from the piston plate (431) is fixedly connected to the inner wall of the piston cylinder (41). The piston cylinder (41) is filled with hydraulic oil.

3. An agricultural bulldozer traction frame connection structure according to claim 2, characterized by The through hole (433) is annularly formed on the surface of the piston plate (431), and the through hole (433) is conical in shape.

4. The agricultural bulldozer traction frame connection structure according to claim 1, characterized in that, A connecting pin (6) is installed through the surface of the second traction frame (5), and the second traction frame (5) and the first traction frame (3) are fixedly connected by the connecting pin (6).

5. The agricultural bulldozer traction frame connection structure of claim 1, wherein, Mounting plates (7) are installed through both sides of the surfaces of the two traction plates (1), and the surfaces of the mounting plates (7) are provided with several mounting holes.

6. An agricultural tractor drawbar connection structure according to claim 1 wherein, Limiting holes (8) are provided on both sides of the surface of the two traction plates (1) for fixing by bolts when the two traction plates (1) are folded and stored.

Images