Clutch control mechanism of wheeled tractor

Abstract

The utility model provides a wheeled tractor clutch control mechanism which comprises a fixed seat, a connecting seat is welded on the side of the fixed seat, a mounting block is welded on the connecting seat, a threaded hole is formed in the mounting block, a rotating column is rotatably mounted in the fixed seat, a transmission rod is fixed on the rotating column, and the transmission rod is connected with the connecting seat. A pedal is fixed to one end of the transmission rod, a fixing frame is welded to the bottom of the fixing base, and an operation shaft is fixedly installed at the bottom of the fixing frame and fixed to the bottom of the fixing frame through a nut. When the wheeled tractor clutch control mechanism is used, a threaded column rotates to push a limiting frame to move outwards in a fixing frame, after the limiting frame moves outwards, the limiting frame is pushed to move through downward inclination force of a transmission rod, and when the limiting frame moves, a supporting cylinder pushes a cable to move secondarily; therefore, secondary pulling of the tightness of the cable is completed, and the situation that the cable is too loose and cannot drive equipment to move is avoided.

Description

Technical Field

[0001] This utility model relates to the field of clutch operating equipment, specifically a clutch operating mechanism for a wheeled tractor. Background Technology

[0002] Tractors are becoming increasingly common in rural areas. Traditional tractor clutch release bearings do not have a return device, the clearance between the pressure pawl and the release bearing cannot be guaranteed, and the pedals are mostly directly mounted on the tractor's floor, making them heavy and difficult to operate.

[0003] According to the patent document CN206280404U, a tractor clutch operating device includes a pedal, a pedal operating shaft, a rocker arm assembly, a gear sleeve, a main clutch bearing housing, and a release bearing. One end of the pedal operating shaft is connected to the pedal, and the other end is connected to one end of the rocker arm assembly. A spring is also connected to one end of the rocker arm assembly. One end of the spring is fixedly connected to one end of the rocker arm assembly, and the other end extends away from the rocker arm assembly. In use, this technical solution adds a return and limit device to the release bearing of the main and auxiliary clutches. Through the spring, the gap between the release bearing and the clutch pressure pawl is kept constant when the release bearing is not working, reducing wear. Although this solution reduces wear, it does not allow for subsequent adjustment of the tightness of the operating shaft, which is inconvenient in use. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a wheeled tractor clutch operating mechanism to solve the problems mentioned in the background. This utility model has a novel structure. In use, the screw column rotates to push the limiting frame to move outward inside the fixed frame. After the limiting frame moves outward, the downward tilting force of the transmission rod pushes the limiting frame to move further. When the limiting frame moves, the support cylinder pushes the cable to move a second time, thereby completing a second pull on the cable tension and preventing the cable from being too loose to drive the equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wheeled tractor clutch operating mechanism, comprising a fixed base, a connecting seat welded to the side of the fixed base, a mounting block welded to the connecting seat, a threaded hole on the mounting block, a rotating column rotatably mounted inside the fixed base, a transmission rod fixed to the rotating column, a pedal fixed to one end of the transmission rod, a fixed frame welded to the bottom of the fixed base, an operating shaft fixedly mounted at the bottom of the fixed frame, the operating shaft being fixed to the bottom of the fixed frame by a nut, and a cable movably mounted inside the operating shaft.

[0006] Furthermore, a fixed shaft is rotatably mounted on the side of the fixed base, the fixed shaft is movably mounted inside the rotating column, and a limit frame is movably mounted inside the fixed frame, the limit frame having a U-shaped groove.

[0007] Furthermore, a support cylinder is movably installed inside the U-shaped groove, a fixing bolt is rotatably installed on the side of the fixing frame, a fixing hole is opened on the side of the limiting frame, and one end of the fixing bolt is movably installed inside the fixing hole.

[0008] Furthermore, a ring seat is rotatably mounted on the support cylinder, a threaded tube is welded onto the ring seat, a threaded column is rotatably mounted inside the threaded tube, and one end of the threaded column is mounted on the limit frame via a bearing seat.

[0009] Furthermore, a sliding groove is formed on the inner wall of the fixing frame, and a slider is movably installed inside the sliding groove. The slider is movably installed on the support cylinder.

[0010] Furthermore, a support mechanism is fixedly installed between the slider and the groove, and the support cylinder is movably installed on the side of the cable.

[0011] Furthermore, a tension mechanism is fixed inside the fixed base, a connecting rod is welded to one end of the transmission rod, the connecting rod is fixedly installed at one end of the tension mechanism, and one end of the cable is fixed to the connecting rod.

[0012] Furthermore, a support tube is welded inside the fixed base, a movable column is movably installed inside the support tube, a reset mechanism is fixed between the movable column and the support tube, a threaded rod is rotatably installed inside the movable column, a buffer seat is fixed at one end of the threaded rod, and the buffer seat movably cooperates with the transmission rod.

[0013] The beneficial effects of this utility model are:

[0014] 1. The clutch operating mechanism of this wheeled tractor, in use, pushes the limit frame to move outward inside the fixed frame by rotating the threaded column. After the limit frame moves outward, the downward tilting force of the transmission rod pushes the limit frame to move. When the limit frame moves, the support cylinder pushes the cable to move a second time, thereby completing the second pull of the cable tension, thus avoiding the cable being too loose to drive the equipment to move.

[0015] 2. In this type of wheeled tractor clutch operating mechanism, after the rear limit bracket is fixed, the rotation of the threaded tube and threaded column pushes the support cylinder to move, the movement of the support cylinder pushes the cable to bend and move, and the tightness of the cable inside the operating shaft is adjusted after the cable bends and moves.

[0016] 3. In this type of wheeled tractor clutch operating mechanism, the movable column and the support tube cooperate to support the transmission rod. Later, under the push of the tension mechanism and the reset mechanism, the transmission rod moves back to its original position, and the threaded rod moves inside the movable column to adjust the position of the buffer seat. The buffer seat cooperates with the transmission rod to limit the downward tilt angle of the transmission rod, so as to avoid excessive tilting of the transmission rod and damage to the cable. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a wheeled tractor clutch operating mechanism according to the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the fixing frame of the clutch operating mechanism of a wheeled tractor according to the present invention;

[0019] Figure 3 This is a schematic diagram of point A of the clutch control mechanism for a wheeled tractor according to the present invention;

[0020] Figure 4 This is a top view sectional view of the fixing frame of the wheel tractor clutch operating mechanism according to the present invention.

[0021] Figure 5 This is a side sectional view of the fixed seat structure of the clutch operating mechanism of a wheeled tractor according to the present invention.

[0022] In the diagram: 1. Fixed seat; 2. Connecting seat; 3. Mounting block; 4. Threaded hole; 5. Rotating column; 6. Fixed shaft; 7. Transmission rod; 8. Pedal; 9. Fixed frame; 10. Fixing bolt; 11. Operating shaft; 12. Cable; 13. Limiting frame; 14. Support cylinder; 15. U-shaped groove; 16. Ring seat; 17. Threaded pipe; 18. Threaded column; 19. Bearing seat; 20. Slide groove; 21. Support mechanism; 22. Slider; 23. Nut; 24. Fixed hole; 25. Pulling mechanism; 26. Connecting rod; 27. Support pipe; 28. Reset mechanism; 29. ​​Movable column; 30. Threaded rod; 31. Buffer seat. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] Please see Figures 1 to 5This utility model provides a technical solution: a wheeled tractor clutch operating mechanism, including a fixed base 1, a connecting base 2 welded to the side of the fixed base 1, a mounting block 3 welded to the connecting base 2, a threaded hole 4 on the mounting block 3, a rotating column 5 rotatably mounted inside the fixed base 1, a transmission rod 7 fixed to the rotating column 5, a pedal 8 fixed to one end of the transmission rod 7, a fixed frame 9 welded to the bottom of the fixed base 1, and an operating shaft 11 fixedly mounted at the bottom of the fixed frame 9. The operating shaft 11 passes through... Nut 23 is fixed to the bottom of the fixed frame 9. Cable 12 is movably installed inside the operating shaft 11. Fixed shaft 6 is rotatably installed on the side of the fixed seat 1. Fixed shaft 6 is movably installed inside the rotating column 5. Limiting frame 13 is movably installed inside the fixed frame 9. U-shaped groove 15 is opened on the limiting frame 13. Later, the limiting frame 13 moves under the push of the transmission rod 7 to complete the pushing displacement of the support cylinder 14. The displacement of the support cylinder 14 pushes the cable 12 to produce bending deformation, thereby completing the secondary pulling displacement of the cable 12.

[0025] In this embodiment, a support cylinder 14 is movably installed inside the U-shaped groove 15. A fixing bolt 10 is rotatably installed on the side of the fixing frame 9. A fixing hole 24 is opened on the side of the limiting frame 13. One end of the fixing bolt 10 is movably installed inside the fixing hole 24. A ring seat 16 is rotatably installed on the support cylinder 14. A threaded tube 17 is welded on the ring seat 16. A threaded column 18 is rotatably installed inside the threaded tube 17. One end of the threaded column 18 is installed on the limiting frame 13 through a bearing seat 19. A sliding groove 20 is opened on the inner wall of the fixing frame 9. A slider 22 is movably installed inside the sliding groove 20. The slider 22 is movably installed on the support cylinder 14. After the fixing bolt 10 is installed inside the fixing hole 24, it limits and fixes the limiting frame 13. After the limiting frame 13 is fixed, the threaded column 18 and the threaded tube 17 complete the displacement and pushing of the support cylinder 14.

[0026] In this embodiment, a support mechanism 21 is fixedly installed between the slider 22 and the slide groove 20. The support cylinder 14 is movably installed on the side of the cable 12. A tension mechanism 25 is fixed inside the fixed seat 1. A connecting rod 26 is welded to one end of the transmission rod 7. The connecting rod 26 is fixedly installed at one end of the tension mechanism 25. One end of the cable 12 is fixed to the connecting rod 26. A support tube 27 is welded inside the fixed seat 1. A movable column 29 is movably installed inside the support tube 27. A reset mechanism 28 is fixed between the movable column 29 and the support tube 27. A threaded rod 30 is rotatably installed inside the movable column 29. A buffer seat 31 is fixed to one end of the threaded rod 30. The buffer seat 31 movably cooperates with the transmission rod 7. Both the reset mechanism 28 and the tension mechanism 25 are springs. The reset mechanism 28 and the tension mechanism 25 drive the transmission rod 7 to return to its original position.

[0027] In use, the mounting base 1 is fixed to the tractor's mounting point via the threaded hole 4 on the mounting block 3. After the mounting base 1 is fixed, one end of the cable 12 is fixed to the clutch operating seat. Later, during use, pressing the pedal 8 causes the transmission rod 7 to rotate and tilt on the rotating column 5. As the transmission rod 7 tilts, the connecting rod 26 also rotates and tilts. During the rotation of the connecting rod 26, the tension mechanism 25 and the cable 12 move. The movement of the cable 12 causes the clutch operating seat to rotate. When the tilt angle of the pedal 8 needs to be adjusted... During adjustment, the threaded rod 30 is rotated and moved inside the support tube 27. One end of the threaded rod 30 is adjusted to contact the transmission rod 7. When the transmission rod 7 pushes the threaded rod 30 through the buffer seat 31, the threaded rod 30 pushes the movable column 29 to move inside the support tube 27. When the movable column 29 is compressed and contracted to its maximum extent against the reset mechanism 28, the movable column 29 can no longer move. Thus, the buffer seat 31 provides a fulcrum for the transmission rod 7. The fulcrum controls the tilt of the transmission rod 7, thereby avoiding excessive pressure that could cause breakage or damage to the cable 12. Later, the transmission rod is released. Driven by the tension mechanism 25 and the reset mechanism 28, the transmission rod 7 quickly returns to its original position. When the cable 12 is too loose, and the pedal 8 moves to the bottom and cannot operate the clutch, the threaded column 18 can be rotated inside the threaded tube 17. The rotation of the threaded column 18 pushes the limit frame 13 to move on the support cylinder 14 through the U-shaped groove 15. The displacement adjusts the exposed position of one end of the limit frame 13. Later, after the transmission rod 7 tilts downward, the transmission rod 7 pushes the limit frame 13 to move. The limit frame 13 pushes the support cylinder 14 through the threaded tube 17 and the ring seat 16. 4. Movement: Connecting rod 26 initially pulls one end of cable 12, and support cylinder 14 displaces to push cable 12 a second time, thereby increasing the pulling force on cable 12. On the other hand, fixing bolt 10 is installed inside fixing hole 24. After the limit frame 13 is fixed, the rotation of threaded column 18 pushes support cylinder 14 through threaded tube 17. When support cylinder 14 moves, it pushes cable 12 to bend and deform. In the later stage, the tension of cable 12 can be adjusted while transmission rod 7 is not in contact with limit frame 13, so as to meet the use under different conditions.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A clutch operating mechanism for a wheeled tractor, comprising a fixed base (1), characterized in that: A connecting seat (2) is welded to the side of the fixed seat (1). A mounting block (3) is welded to the connecting seat (2). A threaded hole (4) is opened on the mounting block (3). A rotating column (5) is rotatably installed inside the fixed seat (1). A transmission rod (7) is fixed on the rotating column (5). A pedal (8) is fixed at one end of the transmission rod (7). A fixed frame (9) is welded to the bottom of the fixed seat (1). An operating shaft (11) is fixedly installed at the bottom of the fixed frame (9). The operating shaft (11) is fixed to the bottom of the fixed frame (9) by a nut (23). A cable (12) is movably installed inside the operating shaft (11).

2. The wheeled tractor clutch operating mechanism according to claim 1, characterized in that: A fixed shaft (6) is rotatably mounted on the side of the fixed base (1). The fixed shaft (6) is movably mounted inside the rotating column (5). A limit frame (13) is movably mounted inside the fixed frame (9). A U-shaped groove (15) is opened on the limit frame (13).

3. The wheeled tractor clutch operating mechanism according to claim 2, characterized in that: The U-shaped groove (15) is movably installed with a support cylinder (14), the side of the fixing frame (9) is rotatably installed with a fixing bolt (10), the side of the limiting frame (13) has a fixing hole (24), and one end of the fixing bolt (10) is movably installed inside the fixing hole (24).

4. The wheeled tractor clutch operating mechanism according to claim 3, characterized in that: A ring seat (16) is rotatably mounted on the support cylinder (14), and a threaded tube (17) is welded on the ring seat (16). A threaded column (18) is rotatably mounted inside the threaded tube (17), and one end of the threaded column (18) is mounted on the limit frame (13) through a bearing seat (19).

5. The wheeled tractor clutch operating mechanism according to claim 1, characterized in that: The inner wall of the fixed frame (9) has a sliding groove (20), and a slider (22) is movably installed inside the sliding groove (20). The slider (22) is movably installed on the support cylinder (14).

6. The wheeled tractor clutch operating mechanism according to claim 5, characterized in that: A support mechanism (21) is fixedly installed between the slider (22) and the groove (20), and the support cylinder (14) is movably installed on the side of the cable (12).

7. The clutch operating mechanism for a wheeled tractor according to claim 1, characterized in that: The fixed base (1) has a tension mechanism (25) fixed inside. A connecting rod (26) is welded to one end of the transmission rod (7). The connecting rod (26) is fixedly installed at one end of the tension mechanism (25). One end of the cable (12) is fixed on the connecting rod (26).

8. The clutch operating mechanism for a wheeled tractor according to claim 1, characterized in that: The fixed base (1) has a support tube (27) welded inside. A movable column (29) is movably installed inside the support tube (27). A reset mechanism (28) is fixed between the movable column (29) and the support tube (27). A threaded rod (30) is rotatably installed inside the movable column (29). A buffer seat (31) is fixed at one end of the threaded rod (30). The buffer seat (31) is movably engaged with the transmission rod (7).

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