Traction steering device of agricultural machine

Abstract

The utility model discloses an agricultural machinery traction steering device, which belongs to the technical field of agricultural machinery traction and is characterized by comprising a first fixing plate, a second fixing plate is arranged on the rear side of the first fixing plate, a connecting plate is fixedly connected to the front side of the first fixing plate, and a rotating mechanism is arranged at the top of the connecting plate. Three composite spring rubber piers are arranged on the front side of the second fixing plate, hydraulic cylinders are arranged on the two sides of the front side of the first fixing plate, and the problems that in an existing technical scheme, the connecting position of the first connecting plate and the second connecting plate can only conduct left-right steering, and when the ground fluctuates, the connecting position of the first connecting plate and the second connecting plate can not conduct left-right steering are solved. The problems that in the prior art, a first connecting plate and a second connecting plate cannot conveniently float in a staggered mode up and down, a pin seat is prone to breakage, the internal structure of the first connecting plate is complex, the interior of the first connecting plate needs to be lubricated regularly, the using process is inconvenient, and the using effect is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery traction, in particular to an agricultural machinery traction steering device. Background Art

[0002] Agricultural machinery refers to various machines used in the process of crop planting and animal husbandry, as well as in the primary processing and handling of agricultural and livestock products. The traction frame is an important component of agricultural machinery and is the connecting part between agricultural machinery and power mechanism.

[0003] At present, a Chinese patent with announcement number CN220630005U discloses a traction steering device for agricultural machinery with a long service life, including a first connecting plate, a pin seat is fixedly connected to the top of the first connecting plate, a second connecting plate is movably connected to the top of the pin seat, and an oil cylinder is movably connected to the top of the first connecting plate and located on the left side of the pin seat. The utility model solves the problem that the traction steering device for agricultural machinery in the prior art does not have the function of buffering and shock absorption through the coordinated use of the first connecting plate, the pin seat, the second connecting plate, the oil cylinder, the shell, the buffer box, the rubber column, the movable plate, the buffer block, the movable plate, the connecting rod, the spring, the movable block, the trapezoidal groove, the limit rod, the limit plate, the first permanent magnet, the second permanent magnet, the pillar and the extrusion wheel. Since its components are in rigid contact when colliding, it is easy to cause the steering clearance to become larger and the components to be excessively worn after long-term use, resulting in a reduced service life of the steering device, which is not conducive to actual use.

[0004] After the applicant consulted the Chinese patent with publication number CN220630005U, the following problems were found: the connection between the first connecting plate and the second connecting plate proposed in the technical solution of the Chinese patent with publication number CN220630005U can only be turned left and right. When the ground is undulating, it is not convenient for the first connecting plate and the second connecting plate to float up and down, which can easily lead to the breakage of the pin seat. In addition, the internal structure of the first connecting plate is relatively complicated, and the inside of the first connecting plate needs to be lubricated regularly, which is inconvenient to use. Utility Model Content

[0005] The utility model provides an agricultural machinery traction steering device, aiming to solve the problem that the connection between the first connecting plate and the second connecting plate proposed in the prior art solution can only be turned left and right, when the ground is undulating, it is inconvenient for the first connecting plate and the second connecting plate to float up and down, which can easily lead to the pin seat breakage, and the internal structure of the first connecting plate is relatively complicated, and the inside of the first connecting plate needs to be lubricated regularly, which makes the use process inconvenient, thereby affecting the use effect.

[0006] The utility model is implemented as follows: an agricultural machinery traction steering device comprises a first fixing plate, a second fixing plate is arranged at the rear side of the first fixing plate, a connecting plate is fixedly connected to the front side of the first fixing plate, a rotating mechanism is arranged at the top of the connecting plate, three composite spring rubber piers are arranged at the front side of the second fixing plate, and hydraulic cylinders are arranged on both sides of the front side of the first fixing plate;

[0007] The rotating mechanism includes a rotating block, a first rotating drum, a rotating plate, a second rotating drum and a connecting frame, the rotating block is rotatably connected to the inside of the first rotating drum, the front side of the first rotating drum is fixedly connected to the rear side of the rotating plate, the rear side of the second rotating drum is fixedly connected to the front side of the rotating plate, and the connecting frame is rotatably connected to the inside of the second rotating drum.

[0008] In order to achieve the effect of allowing the swivel block to rotate left and right, as a preferred agricultural machinery traction steering device of the utility model, a fixing pin is provided on the top of the connecting plate, the bottom of the fixing pin passes through the swivel block and is fixedly connected to the top of the connecting plate, and the surface of the fixing pin is rotatably connected to the inside of the swivel block.

[0009] In order to achieve the effect of limiting the composite spring rubber pier, as a preferred agricultural machinery traction steering device of the utility model, the front side of the second fixed plate is fixedly connected to a limiting barrel, the number of the limiting barrels is three, the composite spring rubber pier is movably inserted inside the limiting barrel, and the front side of the composite spring rubber pier is in contact with the rear side of the first fixed plate.

[0010] In order to facilitate the connection between the first fixed plate and the second fixed plate, as a preferred agricultural machinery traction steering device of the utility model, the four corners of the front side of the second fixed plate are fixedly connected with connecting columns, the front side of the connecting column passes through the first fixed plate and extends to the front side of the first fixed plate, the surface of the connecting column is threaded with a screw, the rear side of the screw is in close contact with the front side of the first fixed plate, and the surface of the connecting column is movably connected to the inside of the first fixed plate.

[0011] In order to facilitate the connection of the first fixed plate and the connecting frame with the agricultural machinery and the power part, as a preferred agricultural machinery traction steering device of the utility model, the second fixed plate is fixedly connected with the first mounting blocks on both sides, the top and bottom of the front side of the first mounting block are provided with first mounting holes, and the inside of the connecting frame is provided with second mounting holes, and the number of the second mounting holes is four and evenly distributed at the four corners of the front side of the connecting frame.

[0012] In order to achieve the effect of rotationally connecting the hydraulic cylinder and the first fixed plate, as a preferred agricultural machinery traction steering device of the utility model, the surface of the hydraulic cylinder is rotationally connected to the first rotating frame, and the rear side of the first rotating frame is fixedly connected to the front side of the first fixed plate.

[0013] In order to achieve the effect of rotationally connecting the hydraulic cylinder and the swivel block, as a preferred agricultural machinery traction steering device of the utility model, the surface of the telescopic end of the hydraulic cylinder is rotatably connected to a second swivel frame, and the second swivel frame is fixedly connected to the swivel block on one side close to the swivel block.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The agricultural machinery traction steering device can connect the agricultural machinery and the power part by using external bolts to pass through the first mounting hole and the second mounting hole respectively, and threading the external bolts to the agricultural machinery and the power part respectively. By controlling the telescopic ends of the two hydraulic cylinders to extend and retract, the hydraulic cylinders can push the rotating block to rotate, so that the towed agricultural machinery can be steered. When the ground is undulating, the rotating block is connected to the inside of the first rotating drum by rotation, and the connecting frame is connected to the inside of the second rotating drum by rotation, so that the first fixed plate and the connecting frame can float up and down, that is, the agricultural machinery can be stably towed even when the ground is undulating. Since the composite spring rubber pier is between the first fixed plate and the second fixed plate, the impact force generated by the agricultural machinery can be buffered and shock-absorbed, avoiding the problem that the connection between the first connecting plate and the second connecting plate proposed in the prior art solution can only be turned left and right. When the ground is undulating, it is inconvenient for the first connecting plate and the second connecting plate to float up and down, which easily leads to the breakage of the pin seat. In addition, the internal structure of the first connecting plate is relatively complicated, and the inside of the first connecting plate needs to be lubricated regularly, which is inconvenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall structural diagram of the agricultural machinery traction steering device of the utility model;

[0017] Figure 2 It is a three-dimensional exploded schematic diagram of the limit barrel and the composite spring rubber pier in the utility model;

[0018] Figure 3 It is a three-dimensional exploded schematic diagram of the fixing pin and the rotating block in the utility model;

[0019] Figure 4 It is a three-dimensional exploded schematic diagram of the transfer block and the first rotating drum of the utility model;

[0020] Figure 5 It is a schematic diagram of the three-dimensional connection between the hydraulic cylinder and the first rotating frame and the second rotating frame in the utility model.

[0021] In the figure, 1. first fixed plate; 2. limiting barrel; 3. second fixed plate; 4. composite spring rubber pier; 5. first mounting block; 6. first mounting hole; 7. connecting column; 8. hydraulic cylinder; 9. rotating mechanism; 901. rotating block; 902. first rotating drum; 903. rotating plate; 904. second rotating drum; 905. connecting frame; 10. screw; 11. connecting plate; 12. fixing pin; 13. second mounting hole; 14. first rotating frame; 15. second rotating frame. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0024] See also Figure 1-5 The utility model provides a technical solution: an agricultural machinery traction steering device, comprising a first fixed plate 1, a second fixed plate 3 is arranged on the rear side of the first fixed plate 1, a connecting plate 11 is fixedly connected to the front side of the first fixed plate 1, a rotating mechanism 9 is arranged on the top of the connecting plate 11, three composite spring rubber piers 4 are arranged on the front side of the second fixed plate 3, and hydraulic cylinders 8 are arranged on both sides of the front side of the first fixed plate 1;

[0025] The rotating mechanism 9 includes a rotating block 901, a first rotating drum 902, a rotating plate 903, a second rotating drum 904 and a connecting frame 905. The rotating block 901 is rotatably connected to the inside of the first rotating drum 902, the front side of the first rotating drum 902 is fixedly connected to the rear side of the rotating plate 903, the rear side of the second rotating drum 904 is fixedly connected to the front side of the rotating plate 903, and the connecting frame 905 is rotatably connected to the inside of the second rotating drum 904.

[0026] In this embodiment: by using external bolts to pass through the first mounting hole 6 and the second mounting hole 13 respectively, and threading the external bolts to the agricultural machinery and the power part respectively, the agricultural machinery and the power part can be connected, and by controlling the telescopic ends of the two hydraulic cylinders 8 to telescope, the hydraulic cylinders 8 can push the rotating block 901 to rotate, so that the towed agricultural machinery can be turned. When the ground is undulating, the rotating block 901 is connected to the inside of the first rotating cylinder 902 by rotation, and the connecting frame 905 is connected to the inside of the second rotating cylinder 904 by rotation, so that the first fixing plate 1 and the connecting frame 905 can float up and down. That is, The agricultural machinery can be stably towed even when the ground is undulating. Since the composite spring rubber pier 4 is located between the first fixed plate 1 and the second fixed plate 3, the impact force generated by the agricultural machinery can be buffered and shock-absorbed, thereby avoiding the problem that the connection between the first connecting plate 11 and the second connecting plate 11 proposed in the prior art solution can only be turned left and right. When the ground is undulating, it is inconvenient for the first connecting plate 11 and the second connecting plate 11 to float up and down, which can easily lead to the breakage of the pin seat. In addition, the internal structure of the first connecting plate 11 is relatively complicated, and the inside of the first connecting plate 11 needs to be lubricated regularly, resulting in inconvenience in use.

[0027] As a technical optimization solution of the utility model, a fixing pin 12 is provided on the top of the connecting plate 11, the bottom of the fixing pin 12 passes through the rotating block 901 and is fixedly connected to the top of the connecting plate 11, and the surface of the fixing pin 12 is rotatably connected to the inside of the rotating block 901.

[0028] In this embodiment, the surface of the fixing pin 12 is movably connected with the interior of the rotating block 901, so that the rotating block 901 can be easily rotated, thereby achieving the effect of enabling the rotating block 901 to rotate left and right.

[0029] As a technical optimization solution of the utility model, the front side of the second fixed plate 3 is fixedly connected to the limiting barrel 2, the number of the limiting barrels 2 is three, the composite spring rubber pier 4 is movably inserted into the interior of the limiting barrel 2, and the front side of the composite spring rubber pier 4 is in contact with the rear side of the first fixed plate 1.

[0030] In this embodiment: by inserting the composite spring rubber pier 4 into the limiting barrel 2, the limiting barrel 2 can limit the composite spring rubber pier 4 to prevent the composite spring rubber pier 4 from falling from between the first fixing plate 1 and the second fixing plate 3, thereby achieving the effect of limiting the composite spring rubber pier 4.

[0031] As a technical optimization solution of the utility model, the four corners of the front side of the second fixed plate 3 are fixedly connected with connecting columns 7, the front side of the connecting column 7 passes through the first fixed plate 1 and extends to the front side of the first fixed plate 1, the surface of the connecting column 7 is threadedly connected with a screw 10, the rear side of the screw 10 is in close contact with the front side of the first fixed plate 1, and the surface of the connecting column 7 is movably connected to the inside of the first fixed plate 1.

[0032] In this embodiment: by passing the connecting column 7 through the first fixed plate 1 and locking the screw 10 with the connecting rod, the rear side of the first fixed plate 1 will be in close contact with the front side of the composite spring rubber pier 4, and the first fixed plate 1 and the second fixed plate 3 can be connected. At this time, the composite spring rubber pier 4 will also play a shock-absorbing and buffering role. The composite spring rubber pier 4 can be replaced by removing the screw 10, thereby achieving the effect of facilitating the connection of the first fixed plate 1 and the second fixed plate 3.

[0033] As a technical optimization solution of the utility model, the first mounting blocks 5 are fixedly connected on both sides of the second fixed plate 3, the top and bottom of the front side of the first mounting block 5 are provided with first mounting holes 6, and the interior of the connecting frame 905 is provided with second mounting holes 13. The number of the second mounting holes 13 is four and they are evenly distributed at the four corners of the front side of the connecting frame 905.

[0034] In this embodiment: by using external bolts to pass through the first mounting hole 6 and the second mounting hole 13 respectively, and threading the external bolts to the agricultural machinery and the power part respectively, the agricultural machinery and the power part can be connected, thereby achieving the effect of facilitating the connection of the first fixing plate 1 and the connecting frame 905 with the agricultural machinery and the power part.

[0035] As a technical optimization solution of the utility model, the surface of the hydraulic cylinder 8 is rotatably connected to the first rotating frame 14 , and the rear side of the first rotating frame 14 is fixedly connected to the front side of the first fixed plate 1 .

[0036] In this embodiment, the hydraulic cylinder 8 is rotatably connected inside the first rotating frame 14 , so that the hydraulic cylinder 8 and the first fixed plate 1 can be rotatably connected, thereby achieving the effect of rotatably connecting the hydraulic cylinder 8 and the first fixed plate 1 .

[0037] As a technical optimization solution of the utility model, the surface of the telescopic end of the hydraulic cylinder 8 is rotatably connected to the second rotating frame 15, and the side of the second rotating frame 15 close to the rotating block 901 is fixedly connected to the rotating block 901.

[0038] In this embodiment, the hydraulic cylinder 8 is connected to the inside of the second rotating frame 15 by rotation, so that the hydraulic cylinder 8 and the rotating block 901 can be rotationally connected, thereby achieving the effect of rotationally connecting the hydraulic cylinder 8 and the rotating block 901.

[0039] Working principle: First, use external bolts to pass through the first mounting hole 6 and the second mounting hole 13 respectively, and thread the external bolts to the agricultural machinery and the power part respectively, so that the agricultural machinery and the power part can be connected. When the power part pulls the agricultural machinery to move, by controlling the telescopic ends of the two hydraulic cylinders 8 to extend and retract, the hydraulic cylinders 8 can push the rotating block 901 to rotate, so that the pulled agricultural machinery can be turned. When the ground is undulating, the rotating block 901 is connected to the inside of the first rotating cylinder 902 by rotation, and the connecting frame 905 is connected to the inside of the second rotating cylinder 904 by rotation, so that the first fixed plate 1 and the connecting frame 905 can float up and down, that is, the agricultural machinery can be stably towed even when the ground is undulating. Through the active connection between the surface of the connecting column 7 and the inside of the first fixed plate 1, the composite spring rubber pier 4 is located between the first fixed plate 1 and the second fixed plate 3, which can buffer and reduce shock the impact force generated by the agricultural machinery, avoiding the problem that the connection between the first connecting plate 11 and the second connecting plate 11 proposed in the prior art solution can only be turned left and right. When the ground is undulating, it is inconvenient for the first connecting plate 11 and the second connecting plate 11 to float up and down, which can easily lead to the pin seat breakage, and the internal structure of the first connecting plate 11 is relatively complicated, and the inside of the first connecting plate 11 needs to be lubricated regularly, which is inconvenient to use. It should be noted that the composite spring rubber pier 4 is an existing mature technology that has been published and can absorb vibration and impact force, which will not be elaborated here.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An agricultural machinery traction steering device, comprising a first fixing plate (1), characterized in that: A second fixing plate (3) is arranged on the rear side of the first fixing plate (1), a connecting plate (11) is fixedly connected to the front side of the first fixing plate (1), a rotating mechanism (9) is arranged on the top of the connecting plate (11), three composite spring rubber piers (4) are arranged on the front side of the second fixing plate (3), and hydraulic cylinders (8) are arranged on both sides of the front side of the first fixing plate (1); The rotating mechanism (9) comprises a rotating block (901), a first rotating drum (902), a rotating plate (903), a second rotating drum (904) and a connecting frame (905); the rotating block (901) is rotatably connected to the inside of the first rotating drum (902); the front side of the first rotating drum (902) is fixedly connected to the rear side of the rotating plate (903); the rear side of the second rotating drum (904) is fixedly connected to the front side of the rotating plate (903); and the connecting frame (905) is rotatably connected to the inside of the second rotating drum (904).

2. The agricultural machinery traction steering device according to claim 1, characterized in that: A fixing pin (12) is provided at the top of the connecting plate (11), the bottom of the fixing pin (12) passes through the rotating block (901) and is fixedly connected to the top of the connecting plate (11), and the surface of the fixing pin (12) is rotatably connected to the inside of the rotating block (901).

3. The agricultural machinery traction steering device according to claim 1, characterized in that: The front side of the second fixed plate (3) is fixedly connected to the limiting barrel (2), the number of the limiting barrels (2) is three, the composite spring rubber pier (4) is movably inserted into the interior of the limiting barrel (2), and the front side of the composite spring rubber pier (4) is in contact with the rear side of the first fixed plate (1).

4. The agricultural machinery traction steering device according to claim 1, characterized in that: The four corners of the front side of the second fixing plate (3) are fixedly connected with connecting columns (7), the front side of the connecting column (7) passes through the first fixing plate (1) and extends to the front side of the first fixing plate (1), the surface of the connecting column (7) is threadedly connected with a screw (10), the rear side of the screw (10) is in close contact with the front side of the first fixing plate (1), and the surface of the connecting column (7) is movably connected to the inside of the first fixing plate (1).

5. The agricultural machinery traction steering device according to claim 1, characterized in that: The second fixing plate (3) is fixedly connected to a first mounting block (5) on both sides, the top and bottom of the front side of the first mounting block (5) are provided with a first mounting hole (6), the interior of the connecting frame (905) is provided with a second mounting hole (13), and the number of the second mounting holes (13) is four and is evenly distributed at the four corners of the front side of the connecting frame (905).

6. The agricultural machinery traction steering device according to claim 1, characterized in that: The surface of the hydraulic cylinder (8) is rotatably connected to a first rotating frame (14), and the rear side of the first rotating frame (14) is fixedly connected to the front side of the first fixed plate (1).

7. The agricultural machinery traction steering device according to claim 1, characterized in that: The surface of the telescopic end of the hydraulic cylinder (8) is rotatably connected to a second rotating frame (15), and the second rotating frame (15) is fixedly connected to the rotating block (901) at a side close to the rotating block (901).

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