Steering parking mechanism suitable for small harvester

Abstract

The utility model relates to the technical field of agricultural machinery, and particularly discloses a steering parking mechanism suitable for a small harvester, which comprises a steering parking control rod, the lower end of the steering parking control rod is movably connected with a steering fixing plate; when the steering parking control rod forcibly swings left and right and front and back, the steering brake pin shaft is pushed to move backwards, then the steering arm swings to drive the steering stay wire to be stressed, and therefore the function of controlling parking on one side and operation on the other side to achieve steering is achieved. A left first parking brake pin shaft and a right first parking brake pin shaft are pushed and extruded forwards to drive a parking brake plate to move, and the parking brake plate moves around a second brake pull rod rotating shaft, so that a parking brake connecting plate is pulled to move forwards, a steering arm connected to the tail end is pulled to rotate around a first brake pull rod rotating shaft, and brake pull wires on two second pull wire pin shafts are pulled; therefore, the tracks on the left side and the right side are fixed, and the parking function is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a steering and parking mechanism suitable for a small harvester. Background Art

[0002] During the operation of the harvester, the operator will stand on the rear stand of the harvester and control the movement and harvesting of the harvester by operating the operating levers on the control panel. The common steering and parking methods on the market are usually achieved by mechanical cable transmission and hydraulic transmission.

[0003] However, the above-mentioned disclosed solutions have the following shortcomings: most mechanical cable-driven steering and parking mechanisms currently on the market adopt a method in which left and right turns are controlled separately by different operating levers. When one wants to implement one of the functions, the remaining control parts need to be returned to their positions, which increases the operator's operating actions and increases the possibility of misoperation in an emergency; and harvesters that are operated by one lever for left and right steering mostly use hydraulic operation, but the hydraulic operating system is relatively expensive. Utility Model Content

[0004] The purpose of the utility model is to solve the technical problem that the operating actions of the operator are increased and the possibility of misoperation in an emergency is increased; and harvesters with left and right steering operated by one lever mostly use hydraulic operation, but the cost of the hydraulic operation system is relatively high. The utility model provides a steering parking mechanism suitable for small harvesters.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The utility model describes a steering parking mechanism suitable for a small harvester, comprising a steering parking control lever; the lower end of the steering parking control lever is movably connected to a steering fixed plate; the steering fixed plate is plugged with a first brake lever rotating shaft and a second brake lever rotating shaft; the second brake lever rotating shaft is symmetrically sleeved with a parking brake plate; the first brake lever rotating shaft is symmetrically and movably sleeved with a steering arm; the upper and lower ends of the steering arm are respectively plugged with a steering brake pin and a parking connecting pin; the parking brake pin and the first pull wire pin are plugged with a parking brake connecting plate; the parking connecting pin and the first pull wire pin are rotatably connected to a parking brake connecting plate; the steering arm is fixed with a second pull wire pin.

[0007] Furthermore, the lower end of the steering and parking control lever is movably sleeved with a first sleeve; a second sleeve is fixedly connected to the first sleeve; a reference shaft is rotatably inserted into the second sleeve; the reference shaft is inserted into the steering fixed plate; a reinforcement plate is fixedly connected between the steering and parking control lever and the second sleeve; an elastic member is sleeved on the reinforcement plate; and the elastic member is located on both sides of the steering and parking control lever.

[0008] The utility model provides a steering and parking mechanism suitable for a small harvester, which has the following beneficial effects:

[0009] 1. The utility model pushes the steering brake pin shaft to move backward when the steering parking control lever is swung forcefully left and right and front and back, and then causes the steering arm to swing and drive the steering cable to be stressed, thereby achieving the function of controlling one side to park and the other side to run and achieve steering, pushing forward and squeezing the two first parking brake pin shafts on the left and right to drive the parking brake plate to move, and the parking brake plate moves around the second brake pull rod rotating shaft, thereby pulling the parking brake connecting plate forward, thereby pulling the steering arm connected at the end to rotate around the first brake pull rod rotating shaft, thereby pulling the brake cables on the two second cable pin shafts, so that the tracks on both sides are fixed, thereby achieving the parking function and realizing that the steering is automatically fixed during the parking operation;

[0010] 2. The steering and parking control mechanism of the utility model has a simple structure and is suitable for small harvesters. After using this steering and parking control mechanism, the operating difficulty of relevant operators is significantly reduced, and operating errors are also significantly reduced. By optimizing the control functions of three functions into one rod control, convenient operation of one rod and lower cost are achieved at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The specific embodiments of the present invention are described in further detail below with reference to the accompanying drawings;

[0012] Figure 1 This is a first axonometric structural diagram of the present invention;

[0013] Figure 2 It is a right side structural schematic diagram of the present utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the utility model from above;

[0015] Figure 4 This is a second axonometric structural diagram of the present invention.

[0016] Explanation of the numbers in the figure: 1. Steering fixed plate; 2. First brake lever rotating shaft; 3. Second brake lever rotating shaft; 4. First cable pin; 5. Steering arm; 6. Steering brake pin; 7. Parking brake connecting plate; 8. First parking brake pin; 9. Parking brake plate; 10. Parking connecting pin; 11. First sleeve; 12. Second sleeve; 13. Reference axis; 14. Steering parking control lever; 15. Reinforcement plate; 16. Elastic part; 17. Parking groove; 18. Left turn groove; 19. Right turn groove; 20. Handle; 21. Control limit plate; 22. Second cable pin. DETAILED DESCRIPTION

[0017] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] It should be noted that all directional indications in the embodiments of the present invention (such as up-down-left-right-front-back...) are only used to explain the relative position relationship - movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0020] See also Figure 1-4As shown, a steering parking mechanism suitable for a small harvester includes a steering parking control lever 14 that is manually gripped and operated; the direction of the steering parking control lever 14 is changed by manually gripping, so that the lower end of the steering parking control lever 14 is movably connected to the steering fixed plate 1, which serves as a reference when the steering fixed plate 1 is fixed in the frame of the harvester; a first brake lever rotating shaft 2 and a second brake lever rotating shaft 3 are plugged into the steering fixed plate 1; then the parking brake plate 9 is symmetrically sleeved at both ends of the second brake lever rotating shaft 3; a steering arm 5 is symmetrically and movably sleeved at both ends of the first brake lever rotating shaft 2; then the steering brake pin 6 and the parking connecting pin 10 are respectively plugged into the upper and lower ends of the steering arm 5; then the first parking brake pin 8 and the first pull wire pin 4 are plugged into the parking brake plate 9; then the parking brake connecting plate 7 is rotatably connected to the parking connecting pin 10 and the first pull wire pin 4, so that the parking brake connecting plate The connecting plate 7 can transmit the swing from the steering arm 5 and the parking brake plate 9; at the same time, a second cable pin 22 is fixedly connected to the steering arm 5, and a steering cable is sleeved on the two second cable pins 22, so that when in use, when the steering parking control lever 14 is swung left and right and front and back, it pushes the steering brake pin 6 to move backward, and then makes the steering arm 5 swing to drive the steering cable to be subjected to force, thereby realizing the function of controlling one side to stop and the other side to run to realize steering, pushing forward and squeezing the left and right two first parking brake pins 8 to drive the parking brake plate 9 to move, and the parking brake plate 9 moves around the second brake lever shaft 3, thereby pulling the parking brake connecting plate 7 forward, thereby pulling the steering arm 5 connected at the end to rotate around the first brake lever shaft 2, thereby pulling the brake cables on the two second cable pins, so that the tracks on both sides are fixed, thereby realizing the parking function and realizing that the steering is automatically fixed during the parking operation.

[0021] A first sleeve 11 is movably sleeved on the lower end of the steering and parking control rod 14; then the first sleeve 11 is fixedly connected to the second sleeve 12; then a reference shaft 13 is rotatably inserted in the second sleeve 12; then the reference shaft 13 is inserted into the steering fixed plate 1 for fixation; then a reinforcement plate 15 is fixedly connected between the steering and parking control rod 14 and the second sleeve 12; an elastic member 16 is sleeved on the reinforcement plate 15; the elastic member 16 is located on both sides of the steering and parking control rod 14, and the partial structure of the elastic member 16 is located on both sides of the steering and parking control rod 14, so that the steering and parking control rod 14 is automatically centered when not subjected to external force, and the first sleeve 11 and the second sleeve 12 are rotatably connected, so that the steering and parking control rod 14 can swing back and forth and left and right around the reference shaft 13, so that it can reciprocate left and right, thereby respectively pushing the steering brake pin shaft 6 located on the left and right sides, thereby driving the second pull wire pin shaft 22 on the left and right sides to move and pull the steering wire, thereby realizing left and right steering of the harvester.

[0022] By sleeve-connecting the control limit plate 21 on the steering and parking control lever 14 , the displacement of the steering and parking control lever 14 is limited, thereby facilitating operation and easily forming an operation memory and method.

[0023] By providing a parking groove 17, a left-turn groove 18 and a right-turn groove 19 corresponding to the steering brake pin shaft 6 and the first parking brake pin shaft 8 in the control limit plate 21, and by designing the parking groove 17, the left-turn groove 18 and the right-turn groove 19 to be interconnected, the steering parking control lever 14 can be displaced along the parking groove 17, the left-turn groove 18 and the right-turn groove 19 under manual operation, thereby driving the steering cable and the brake cable to realize the steering and parking functions.

[0024] The handle 20 is threadedly sleeved on the steering and parking control lever 14 , so that the handle 20 makes it more comfortable to operate the steering and parking control lever 14 , increases the contact area with the palm, and reduces the skin pressure.

[0025] A brake cable is sleeved on the second cable pin 22 .

[0026] By adopting the above scheme, when in use, by connecting the cable connected to the gearbox to the corresponding second cable pin shaft 22 of the brake on both sides, when the steering parking control lever 14 moves to the second cable pin shaft 22 on the left, the steering parking control lever 14 will enter the left turn groove 18, driving the left turn cable to tighten, thereby stopping the left track from rotating. At this time, the right track continues to work, and the entire machine will move to the left under this drive; similarly, when the steering parking control lever 14 moves to the second cable pin shaft 22 on the right, the parking lever enters the right turn groove 19, driving the right turn cable to tighten, thereby stopping the right track from rotating. At this time, the left track continues to work, and the entire machine will move to the right under this drive; after the steering movement is completed, you can directly let go, and the steering parking control lever 14 will automatically return to the middle position.

[0027] When the parking function is to be realized, the steering parking control lever 14 moves toward the parking pin shaft 8; the parking lever enters the parking slot 17 and will be stuck in the parking slot 17, because the left-turn parking pin shaft 12 and the right-turn parking pin shaft 13 will be closer in spatial arrangement, and the steering parking control lever 14 is welded with a flat plate, which will simultaneously push the two first parking brake pin shafts 8 to move forward, and the two parking pin shafts will drive the parking brake plate 9, the second one will make a circular motion around the brake lever shaft 3, and drive the parking brake connecting plate 7 to move, drive the parking connecting pin shaft 10 to move, and make the steering arm 5 make a circular motion around the first brake lever shaft 2, driving the first cable pin shaft 4, so that the cables on both sides will be tightened at the same time, both sides of the gearbox will be controlled at the same time, and the tracks on both sides will stop at the same time, so that the entire machine can achieve the parking effect; if you want the machine to continue to move forward, you need to manually disengage the parking lever from the parking slot 17, and then the parking lever will automatically return to its position.

[0028] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A steering and parking mechanism suitable for a small harvester, characterized by: The invention comprises a steering parking control lever (14); the lower end of the steering parking control lever (14) is movably connected to a steering fixed plate (1); a first brake lever rotating shaft (2) and a second brake lever rotating shaft (3) are plugged into the steering fixed plate (1); a parking brake plate (9) is symmetrically sleeved on the second brake lever rotating shaft (3); a steering arm (5) is symmetrically and movably sleeved on the first brake lever rotating shaft (2); a steering brake pin shaft (6) and a parking connecting pin shaft (10) are respectively plugged into the upper and lower ends of the steering arm (5); a first parking brake pin shaft (8) and a first cable pin shaft (4) are plugged into the parking brake plate (9); a parking brake connecting plate (7) is rotatably connected to the parking connecting pin shaft (10) and the first cable pin shaft (4); a second cable pin shaft (22) is fixedly connected to the steering arm (5).

2. The steering and parking mechanism for a small harvester according to claim 1, characterized in that: The lower end of the steering and parking control lever (14) is movably sleeved with a first sleeve (11); a second sleeve (12) is fixedly connected to the first sleeve (11); a reference shaft (13) is rotatably inserted into the second sleeve (12); the reference shaft (13) is inserted into the steering fixed plate (1); a reinforcement plate (15) is fixedly connected between the steering and parking control lever (14) and the second sleeve (12); an elastic member (16) is sleeved on the reinforcement plate (15); and the elastic member (16) is located on both sides of the steering and parking control lever (14).

3. The steering and parking mechanism for a small harvester according to claim 2, characterized in that: A control limit plate (21) is sleeved on the steering and parking control lever (14).

4. The steering and parking mechanism for a small harvester according to claim 3, characterized in that: The control limit plate (21) is provided with a parking groove (17), a left-turn groove (18) and a right-turn groove (19) corresponding to the steering brake pin shaft (6) and the first parking brake pin shaft (8).

5. The steering and parking mechanism for a small harvester according to claim 1, characterized in that: A handle (20) is threadedly sleeved on the steering and parking control rod (14).

6. The steering and parking mechanism for a small harvester according to claim 1, characterized in that: A brake cable is sleeved on the second cable pin (22).

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