Clutch assisting structure of clutch machine

Abstract

A mechanical clutch boosting structure of a clutch relates to the technical field of boosting structures and comprises a side plate, a clutch brake pedal arm is hinged to the side plate, an elastic component is hinged to the side plate, the swing end of a boosting rocker arm is hinged to the pressing end of the elastic component, and when the clutch brake pedal arm is in an initial state, the elastic component pushes the clutch brake pedal arm outwards; when the clutch brake pedal arm is stepped down, the power-assisted rocker arm swings downwards to compress the elastic assembly to a polar point, and the clutch brake pedal arm is located at a first-stage power-assisted position; when the clutch brake pedal arm is continuously treaded down, the power assisting rocker arm crosses the first-stage power assisting position, the elastic assembly is compressed and released to push the power assisting rocker arm to swing upwards, and the clutch brake pedal arm is driven to be located at the second-stage power assisting position. The power assisting structure solves the problems that normal operation of a hydraulic oil cylinder in a power assisting structure in the prior art depends on pressure provided by a hydraulic system, if the pressure of the hydraulic system is too high, adverse effects can be generated on the service life of related components, and oil leakage and abnormal sound are prone to occurring.

Description

Technical Field

[0001] This utility model relates to the field of power assist structure technology, specifically to a clutch mechanical clutch assist structure. Background Technology

[0002] High-horsepower tractors, due to their large clutch size, require drivers to exert significant force during operation. Furthermore, tractors often operate for extended periods, making driver fatigue a common concern. To alleviate this burden, clutch assist mechanisms are widely used in high-horsepower tractors. Currently, the most common clutch assist mechanisms in high-horsepower tractors on the market employ hydraulic cylinder assistance. This method utilizes a pedal to directly control the hydraulic cylinder, thus mitigating the problem of excessive operating force to some extent.

[0003] A prior art patent with publication number CN202833747U discloses a solution including a power assist spring, characterized by further including a power assist bracket, with one end of the power assist spring hinged to the power assist bracket and the other end slidingly contacting the inner wall of the power assist bracket. A clutch and clutch cable assembly with the aforementioned power assist mechanism is also disclosed. This clutch power assist mechanism not only provides good assist effect and high reliability, but for vehicles using clutch cables, clutch assistance can be easily achieved simply by replacing the clutch cable assembly with one that includes a power assist function.

[0004] As existing devices are used, the shortcomings of this technology have gradually become apparent, mainly in the following aspects:

[0005] First, the normal operation of hydraulic cylinders in existing power-assisted systems relies on the pressure provided by the hydraulic system. If the hydraulic system pressure is too high, it will have an adverse effect on the service life of related components and is also prone to failures such as oil leakage and abnormal noise.

[0006] Second, the existing assistive structures are large and complex, making it impossible for them to function effectively within a limited space.

[0007] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0008] In view of the shortcomings of the prior art, this utility model solves the problems of the hydraulic cylinder in the power assist structure of the traditional technology relying on the pressure provided by the hydraulic system for normal operation. If the pressure of the hydraulic system is too high, it will have an adverse effect on the service life of related components and is also prone to oil leakage and abnormal noise; as well as the problems of the existing power assist structure being large in size and complex in structure.

[0009] To solve the above problems, this utility model provides the following technical solution:

[0010] A clutch mechanical clutch assist structure includes a side plate, a clutch brake pedal arm hinged to the side plate, an elastic component hinged to the side plate, an assist rocker arm fixedly connected to the hinged end of the clutch brake pedal arm, and a swinging end of the assist rocker arm hinged to the pressing end of the elastic component.

[0011] In its initial state, the elastic component pushes the clutch brake lever outward.

[0012] When the clutch brake pedal is depressed, the assist rocker arm swings downward to compress the elastic component to the extreme point, and the clutch brake pedal is in the first-level assist position.

[0013] Continue to depress the clutch and brake pedals. The power assist arm moves past the first-level power assist position, and the elastic component compresses and releases, pushing the power assist arm to swing upward, thus moving the clutch and brake pedals to the second-level power assist position.

[0014] As an optimized solution, the elastic component includes a spring sleeve, in which a spring shaft is slidably inserted. A spring is mounted on both the spring sleeve and the spring shaft, with the two ends of the spring corresponding to the upper end of the spring sleeve and the lower end of the spring shaft.

[0015] As an optimized solution, the upper end of the spring sleeve is hinged to the power rocker arm via a power-assist pin.

[0016] As an optimized solution, a fixed seat is fixedly connected to the side plate, and the lower end of the spring shaft is hinged to the fixed seat.

[0017] As an optimized solution, the spring sleeve has a sliding hole along the axial direction on its cylinder wall, and the upper end of the spring shaft has a pin hole. A cylindrical pin is inserted into the pin hole, and the end of the cylindrical pin is slidably constrained within the sliding hole.

[0018] As an optimized solution, the clutch brake pedal arm has an angle of 62° with the horizontal line in its initial state.

[0019] As an optimized solution, when the clutch brake pedal is in the first-level power assist position, the angle between it and the horizontal line is 71°.

[0020] As an optimized solution, when the clutch brake pedal is in the secondary power assist position, the angle between it and the horizontal line is 100°.

[0021] As an optimized solution, the hinged end of the clutch brake pedal arm is also fixedly connected to a clutch lever, the swing end of the clutch lever is hinged to a clutch upper pull rod, the lower end of the clutch upper pull rod is hinged to a swinging intermediate rocker arm, the intermediate rocker arm is hinged to a clutch lower pull rod, and the other end of the clutch lower pull rod is hinged to a clutch rocker arm.

[0022] As an optimized solution, the transfer rocker arm is hinged to the transfer seat, and the transfer seat is fixed to the gearbox.

[0023] As an optimized solution, the side panel is fixed to the driver's cab.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] This patent employs an original design concept, cleverly integrating mechanical clutch assist functions into the traditional clutch structure system. Compared with existing technical solutions, it exhibits significant advantages in multiple dimensions, including functional integration, structural simplification, assembly efficiency, ease of maintenance, and performance optimization.

[0026] While simplifying the structure, this patent optimizes the spatial layout of the clutch. By adjusting the position and connection method of each component, the power assist mechanism can better perform its function in a limited space. Compared with the traditional installation, where users of high-horsepower vehicles can only choose a hydraulic power assist mechanism, this patent breaks through this limitation, allowing users to better choose the corresponding configuration, while helping companies control costs. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0028] Figure 1 This is a schematic diagram of the clutch brake pedal arm in its initial state.

[0029] Figure 2 This is a structural schematic diagram of the clutch brake pedal arm in the first-stage assist position state of this utility model;

[0030] Figure 3 This is a structural schematic diagram of the clutch brake pedal arm in the two-stage power assist position state of this utility model;

[0031] Figure 4 This is a schematic diagram of the structure of the elastic component of this utility model.

[0032] In the diagram: 1-Side plate; 2-Clutch / brake pedal arm; 3-Power assist rocker arm; 4-Elastic component; 5-Fixed seat; 6-Power assist pin; 7-Clutch rotating arm; 8-Clutch upper pull rod; 9-Intermediate rocker arm; 10-Intermediate seat; 11-Clutch lower pull rod; 12-Clutch rocker arm; 13-Spring sleeve; 14-Spring shaft; 15-Spring; 16-Cylindrical pin; 17-Sliding hole. Detailed Implementation

[0033] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0034] like Figures 1 to 4 As shown, the clutch mechanical clutch assist structure includes a side plate 1, a clutch brake pedal arm 2 hinged to the side plate 1, an elastic component 4 hinged to the side plate 1, an assist rocker arm 3 fixedly connected to the hinged end of the clutch brake pedal arm 2, and an assist rocker arm 3 hinged to the swing end of the assist rocker arm 3 and the pressing end of the elastic component 4.

[0035] In the initial state, the elastic component 4 pushes the clutch brake pedal 2 outward;

[0036] When the clutch brake pedal 2 is depressed, the power assist rocker arm 3 swings downward to compress the elastic component 4 to the extreme point, and the clutch brake pedal 2 is in the first-level power assist position.

[0037] Continue to depress the clutch brake pedal 2. The power assist rocker arm 3 passes the first-level power assist position. The elastic component 4 is compressed and released, pushing the assistant rocker arm to swing upward, causing the clutch brake pedal 2 to move to the second-level power assist position.

[0038] The elastic component 4 includes a spring sleeve 13, a spring shaft 14 is slidably inserted into the spring sleeve 13, and a spring 15 is mounted on both the spring sleeve 13 and the spring shaft 14. The two ends of the spring 15 abut against the upper end of the spring sleeve 13 and the lower end of the spring shaft 14, respectively.

[0039] The upper end of the spring sleeve 13 is hinged to the power rocker arm 3 via the power-assisting pin 6.

[0040] A fixed seat 5 is fixedly connected to the side plate 1, and the lower end of the spring shaft 14 is hinged to the fixed seat 5.

[0041] A sliding hole 17 is provided on the cylinder wall of the spring sleeve 13 along the axial direction, and a pin hole is provided at the upper end of the spring shaft 14. A cylindrical pin 16 is inserted into the pin hole, and the end of the cylindrical pin 16 is slidably constrained in the sliding hole 17.

[0042] In its initial state, the clutch brake pedal 2 makes an angle of 62° with the horizontal line.

[0043] When the clutch brake pedal 2 is in the first-level power assist position, the angle between it and the horizontal line is 71°.

[0044] When the clutch brake pedal 2 is in the secondary power assist position, the angle between it and the horizontal line is 100°.

[0045] The clutch brake pedal arm 2 is also fixedly connected to the hinged end of the clutch lever arm 2. The upper clutch lever 8 is hinged to the swing end of the clutch lever arm 7. The lower end of the upper clutch lever 8 is hinged to the swinging intermediate rocker arm 9. The lower clutch lever 11 is hinged to the intermediate rocker arm 9. The other end of the lower clutch lever 11 is hinged to the clutch rocker arm 12.

[0046] The transfer rocker arm 9 is hinged to the transfer seat 10, and the transfer seat 10 is fixed to the gearbox.

[0047] Side panel 1 is fixed to the driver's cab.

[0048] The working principle of this device is as follows:

[0049] When the clutch brake pedal 2 is pressed down, it compresses the spring 15. When the spring 15 is compressed to the extreme point of the spring sleeve 13, it provides the first level of assistance. This causes the upper clutch lever 8 to pull the intermediate rocker arm 9, which in turn drives the lower clutch lever 11, thus completing the first level of assistance for the clutch rocker arm 12. Pressing the clutch brake pedal 2 down again triggers the second level of assistance. The spring 15 is compressed and released, causing the clutch brake pedal 2 to continue to press down, which in turn drives the upper clutch lever 8 to pull the intermediate rocker arm 9. The intermediate rocker arm 9 in turn drives the lower clutch lever 11, thus completing the second level of assistance for the clutch rocker arm 12. During this process, the force applied by the user is reduced, thereby achieving the assistance effect.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A clutch mechanical clutch assist structure, characterized in that: Includes a side plate (1), on which a clutch brake pedal arm (2) is hinged, and on which an elastic component (4) is hinged, and a power assist rocker arm (3) is fixedly connected to the hinged end of the clutch brake pedal arm (2), and the swing end of the power assist rocker arm (3) is hinged to the pressing end of the elastic component (4). In the initial state, the elastic component (4) pushes the clutch brake pedal (2) outward; When the clutch brake pedal (2) is depressed, the assist rocker arm (3) swings downward to compress the elastic component (4) to the extreme point, and the clutch brake pedal (2) is in the first-level assist position; Continue to depress the clutch brake pedal (2), the power assist rocker arm (3) passes the first-level power assist position, the elastic component (4) is compressed and released, pushing the power assist rocker arm to swing upward, causing the clutch brake pedal (2) to be in the second-level power assist position.

2. The clutch mechanical clutch assist structure according to claim 1, characterized in that: The elastic component (4) includes a spring sleeve (13), in which a spring shaft (14) is slidably inserted. A spring (15) is fitted on both the spring sleeve (13) and the spring shaft (14). The two ends of the spring (15) abut against the upper end of the spring sleeve (13) and the lower end of the spring shaft (14).

3. The clutch mechanical clutch assist structure according to claim 2, characterized in that: The upper end of the spring sleeve (13) is hinged to the rocker arm (3) via a booster pin (6).

4. The clutch mechanical clutch assist structure according to claim 2, characterized in that: A fixing seat (5) is fixedly connected to the side plate (1), and the lower end of the spring shaft (14) is hinged to the fixing seat (5).

5. The clutch mechanical clutch assist structure according to claim 2, characterized in that: The spring sleeve (13) has a sliding hole (17) axially formed on its wall. The upper end of the spring shaft (14) has a pin hole. A cylindrical pin (16) is inserted into the pin hole, and the end of the cylindrical pin (16) is slidably constrained within the sliding hole (17).

6. The clutch mechanical clutch assist structure according to claim 1, characterized in that: In its initial state, the clutch brake pedal (2) has an angle of 62° with the horizontal line.

7. The clutch mechanical clutch assist structure according to claim 1, characterized in that: When the clutch brake pedal arm (2) is in the first-level assist position, the angle between it and the horizontal line is 71°.

8. The clutch mechanical clutch assist structure according to claim 1, characterized in that: When the clutch brake pedal arm (2) is in the secondary assist position, the angle between it and the horizontal line is 100°.

9. The clutch mechanical clutch assist structure according to claim 1, characterized in that: The clutch brake pedal arm (2) is also fixedly connected to a clutch rotating arm (7) at its hinged end. The clutch rotating arm (7) is hinged to an upper clutch lever (8) at its swinging end. The lower end of the upper clutch lever (8) is hinged to a swinging intermediate rocker arm (9). The intermediate rocker arm (9) is hinged to a lower clutch lever (11). The other end of the lower clutch lever (11) is hinged to a clutch rocker arm (12).

10. The clutch mechanical clutch assist structure according to claim 9, characterized in that: The transfer rocker arm (9) is hinged to the transfer seat (10), the transfer seat (10) is fixed to the gearbox, and the side plate (1) is fixed to the cab.

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