Anti-slip improved device of centrifugal clutch

Abstract

The utility model discloses an anti-slip improved device of a centrifugal clutch, which comprises a driving disc, a driven disc is arranged on the outer wall of the driving disc, both the driving disc and the driven disc are circular, an input shaft is arranged at the axis of the driven disc, a shifting block is arranged on the outer wall of the input shaft, a rotating groove is formed in the outer wall of the driving disc, and the shifting block is arranged in the rotating groove. The inner wall of the rotating groove is composed of multiple sets of fan-shaped contours, the side, close to the sliding rod, of the sliding plate is rotationally connected with multiple sets of balls, and the balls roll in the groove. The ball is in rolling fit with the arc-shaped groove of the sliding rod, the second spring evenly exerts pressure on the sliding plate, the fan-shaped centrifugal block always keeps a stable movement track under the action of centrifugal force, shaking or deflection caused by abrasion of the sliding groove is avoided, meanwhile, the sliding block is attached to the upper end face and the lower end face of the fixing block, axial displacement is further limited, and the service life of the sliding block is prolonged. And it is ensured that the fan-shaped centrifugal blocks are precisely attached to the fan-shaped contours of the rotating grooves, and therefore the slipping problem caused by poor contact in a traditional clutch is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of clutch technology, and in particular to an anti-slip improvement device for centrifugal clutches. Background Technology

[0002] The clutch is located inside the flywheel housing between the engine and the gearbox. The clutch assembly is fixed to the rear surface of the flywheel with screws. The output shaft of the clutch is the input shaft of the gearbox.

[0003] Chinese utility model patent CN220268260U discloses a centrifugal clutch based on an improved centrifugal block structure. In use, a fixed block drives a fan-shaped centrifugal block to rotate, ensuring the fan-shaped centrifugal block always moves along the length of the fixed block under centrifugal force. The fixed block can also tightly engage with the fan-shaped groove on the inner side of the drive disc, preventing slippage and burnout common in traditional friction clutches. However, this device has certain drawbacks in practical use. For example, the internal groove of the fan-shaped centrifugal block wears when sliding against the outer wall of the fixed block, causing the fan-shaped centrifugal block to wobble or deviate under centrifugal force, making precise engagement with the fan-shaped groove on the drive disc impossible. Therefore, this patent proposes an improved anti-slippage device for centrifugal clutches to address these issues. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an improved anti-slip device for centrifugal clutches.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An improved anti-slip device for a centrifugal clutch includes a driving disc, with a driven disc on its outer wall. Both the driving and driven discs are circular. An input shaft is located at the center of the driven disc, and a moving block is located on the outer wall of the input shaft. A rotating groove is formed on the outer wall of the driving disc, and the inner wall of the groove is composed of multiple sets of fan-shaped contours. A rotating shaft is rotatably connected to the center of the groove, and multiple sets of fixing blocks are fixedly connected to the outer wall of the rotating shaft. Each set of fixing blocks has a fan-shaped centrifugal block slidably connected to its outer wall. The number of fan-shaped centrifugal blocks is the same as the number of sets of fan-shaped contours, and their positions correspond one-to-one. The outer wall of the fan-shaped centrifugal block has a curved surface with the same arc as the fan-shaped profile. A moving groove is formed through the outer wall of the fixed block. A sliding rod is fixedly connected to the inner wall of the moving groove. Two sets of grooves are formed on the outer wall of the sliding rod, both of which are arc-shaped. A slider is slidably connected to the outside of the sliding rod. The slider is fixedly connected to the adjacent fan-shaped centrifugal block through multiple sets of connecting rods. Two sets of sliding plates are slidably connected inside the slider. Multiple sets of ball bearings are rotatably connected to the side of the sliding plate close to the sliding rod. The ball bearings roll in the groove. An elastic component is installed on the outer wall of the slider to drive the ball bearings to abut against the groove.

[0007] Preferably, the elastic component includes connecting rods slidably connected to the outer walls of both sides of the slider, two sets of connecting rods being fixedly connected to two sets of sliding plates respectively, and a spring is sleeved on the outer wall of the sliding rod, with both ends of the spring being fixedly connected to the inner wall of the moving groove and the outer wall of the slider respectively.

[0008] Preferably, a limiting block is fixedly connected to the end of the connecting rod away from the slide plate, the radius of the limiting block is larger than the radius of the connecting rod, and a spring is sleeved on the outer wall of the connecting rod.

[0009] Preferably, one end of the second spring is fixedly connected to the outer wall of the limiting block, and the other end of the second spring is fixedly connected to the inner wall of the slider.

[0010] Preferably, the end face of the fan-shaped centrifugal block is provided with a through groove, and the upper and lower end faces of the slider are respectively attached to the top and bottom of the fixed block.

[0011] Preferably, the end of the driving disc furthest from the driven disc is connected to an external power source via an output shaft, and the input shaft rotates synchronously with the driven disc.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model utilizes the rolling cooperation between the ball bearing and the arc-shaped groove of the slide bar, as well as the uniform pressure applied by the two springs to the slide plate, to ensure that the fan-shaped centrifugal block maintains a stable motion trajectory under the action of centrifugal force, avoiding wobbling or deflection caused by wear of the slide groove. At the same time, the contact between the upper and lower end faces of the slider and the fixed block further restricts axial displacement, ensuring that the fan-shaped centrifugal block and the fan-shaped contour of the rotating groove are precisely matched, thereby effectively preventing slippage problems caused by poor contact in traditional clutches.

[0014] 2. This utility model adopts a ball rolling friction design to replace the traditional sliding friction, which greatly reduces the mechanical wear between the slide and the fixed block. The synergistic effect of spring one and spring two can not only ensure the smooth unfolding and resetting of the centrifugal block, but also adaptively adjust the contact pressure to avoid component fatigue or deformation caused by long-term use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the anti-slip improvement device for the centrifugal clutch proposed in this utility model;

[0016] Figure 2 for Figure 1 Structural diagram.

[0017] Figure 3 for Figure 2 Schematic diagram of cross-section structure.

[0018] Figure 4 for Figure 3Schematic diagram of components such as the central sector centrifugal block and the fixing block.

[0019] Figure 5 for Figure 4 Schematic diagram of components such as the middle slider, connecting rod, and slide bar.

[0020] Figure 6 for Figure 5 Schematic diagram of the middle slider and connecting rod.

[0021] Figure 7 for Figure 6 Enlarged schematic diagram of the structure at point A in the middle.

[0022] In the diagram: 1. Driving disc; 2. Driven disc; 3. Input shaft; 4. Rotary groove; 5. Output shaft; 6. Fan-shaped centrifugal block; 7. Rotating shaft; 8. Spring 1; 9. Fixed block; 10. Slide groove; 11. Moving groove; 12. Slide rod; 13. Connecting rod; 14. Slider; 15. Slide plate; 16. Ball bearing; 17. Connecting rod; 18. Spring 2; 19. Limiting block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figure 1-7 The anti-slip improvement device for centrifugal clutch includes a drive disc 1, a driven disc 2 on the outer wall of the drive disc 1, both the drive disc 1 and the driven disc 2 are circular, an input shaft 3 is set at the center of the driven disc 2, a toggle block is set on the outer wall of the input shaft (3), a rotating groove 4 is opened on the outer wall of the drive disc 1, the inner wall of the rotating groove 4 is composed of multiple sets of fan-shaped contours, a rotating shaft 7 is rotatably connected at the center of the rotating groove 4, multiple sets of fixing blocks 9 are fixedly connected to the outer wall of the rotating shaft 7, and a fan-shaped centrifugal block 6 is slidably connected to the outer wall of each set of fixing blocks 9, the number of fan-shaped centrifugal blocks 6 is consistent with the number of multiple sets of fan-shaped contours, and the positions correspond one-to-one. The outer wall curved surface has the same arc as the fan-shaped contour. The outer wall of the fixed block 9 has a through-hole moving groove 11. The inner wall of the moving groove 11 is fixedly connected to a slide rod 12. The outer wall of the slide rod 12 has two sets of grooves, both of which are arc-shaped. The slide rod 12 is slidably connected to a slider 14. The slider 14 is fixedly connected to its adjacent fan-shaped centrifugal block 6 through multiple sets of connecting rods 13. The slider 14 is slidably connected to two sets of sliding plates 15. The side of the sliding plate 15 close to the slide rod 12 is rotatably connected to multiple sets of balls 16. The balls 16 roll in the groove. The outer wall of the slider 14 is equipped with an elastic component that drives the balls 16 to abut against the groove.

[0025] Furthermore, the rolling engagement of the ball bearing 16 with the arc-shaped groove of the slide bar 12 reduces sliding friction, prevents the fan-shaped centrifugal block 6 from becoming skewed due to wear, and ensures its precise fit with the rotating groove 4.

[0026] The elastic component includes connecting rods 17 that are slidably connected to the outer walls of both sides of the slider 14. The two sets of connecting rods 17 are fixedly connected to the two sets of sliding plates 15 respectively. A spring 8 is sleeved on the outer wall of the sliding rod 12. The two ends of the spring 8 are fixedly connected to the inner wall of the moving groove 11 and the outer wall of the slider 14 respectively.

[0027] Furthermore, the preload of spring 8 drives slider 14 to reset, further limiting the radial displacement gap of the fan-shaped centrifugal block 6 and preventing excessive shaking under centrifugal force.

[0028] A limiting block 19 is fixedly connected to the end of the connecting rod 17 away from the slide plate 15. The radius of the limiting block 19 is larger than the radius of the connecting rod 17. A spring 18 is sleeved on the outer wall of the connecting rod 17.

[0029] Furthermore, the movement of the slide plate 15 is limited by the cooperation of the limiting block 19 and the second spring 18, preventing the ball 16 from dislodging from the groove of the slide bar 12, while providing adaptive pressure compensation.

[0030] One end of spring 18 is fixedly connected to the outer wall of limit block 19, and the other end of spring 18 is fixedly connected to the inner wall of slider 14.

[0031] Furthermore, the bidirectional fixed connection of spring 18 ensures that the pressure of the slide plate 15 on the ball bearing 16 is evenly distributed, preventing the fan-shaped centrifugal block 6 from tilting due to unilateral wear.

[0032] A sliding groove 10 is provided through the end face of the fan-shaped centrifugal block 6. The upper and lower end faces of the slider 14 are respectively attached to the top and bottom of the fixed block 9. The end of the active disk 1 away from the driven disk 2 is connected to an external power source through the output shaft 5. The input shaft 3 rotates synchronously with the driven disk 2.

[0033] Furthermore, the independent transmission design of the input shaft 3 and the output shaft 5 ensures the separation of power between the driving disc 1 and the driven disc 2, avoiding the risk of slippage caused by the speed difference.

[0034] In this utility model, when the device is used, the input shaft 3 receives external power and drives the driven disk 2 to rotate. The driven disk 2 and the driving disk 1 form a power transmission channel through the fan-shaped contour of the rotating groove 4. At this time, the rotating shaft 7 rotates synchronously with the driving disk 1, and the fixed block 9 rotates with the rotating shaft 7, driving the fan-shaped centrifugal block 6 to slide along the sliding groove 10 on the outer wall of the fixed block 9.

[0035] At low speed, the preload of spring 8 keeps slider 14 in its initial position, the fan-shaped centrifugal block 6 is not fully extended, and the ball 16 is in contact with the arc-shaped groove of slide bar 12 but no pressure is applied, thus avoiding hard contact between the driving disc 1 and the driven disc 2 and reducing idle wear.

[0036] As the rotational speed increases, centrifugal force drives the fan-shaped centrifugal block 6 to slide outward along the fixed block 9, while the slide plate 15 pushes the slider 14 to move along the slide rod 12 via the connecting rod 13. The ball bearing 16 rolls within the arc-shaped groove of the slide rod 12, converting sliding friction into rolling friction and reducing wear between the slide groove 10 and the fixed block 9. Simultaneously, the second spring 18 applies uniform pressure to the slide plate 15 via the limiting block 19, ensuring that the ball bearing 16 always adheres to the inner wall of the groove and preventing the fan-shaped centrifugal block 6 from tilting due to uneven force.

[0037] When the rotational speed reaches the set threshold, the fan-shaped centrifugal block 6 fully expands, and its outer curved surface closely fits the fan-shaped contour of the rotating groove 4, forming a stable power transmission surface. At this time, the active disk 1 outputs power to external equipment through the output shaft 5. The independent transmission design of the input shaft 3 and the output shaft 5 effectively isolates the speed difference and avoids slippage caused by asynchronous power. If the rotational speed decreases, the spring 8 drives the slider 14 to reset, causing the fan-shaped centrifugal block 6 to retract, and the active disk 1 and the driven disk 2 gradually separate, achieving smooth disengagement.

[0038] During operation, the contact between the upper and lower end faces of the slider 14 and the inner wall of the fixed block 9 restricts the axial displacement of the fan-shaped centrifugal block 6. The bidirectional pressure compensation of the elastic component further offsets the centrifugal force fluctuations, ensuring that the contact surface is subjected to uniform force.

[0039] In summary, the above components enable the device to maintain stable power transmission at high speeds, while avoiding the engagement failure problem caused by wear in traditional clutches, thus improving anti-slip performance and service life.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. Anti-slip improvement device for a centrifugal clutch, comprising a driving disc (1), characterised in that, The outer wall of the driving disc (1) is provided with a driven disc (2), the driving disc (1) and the driven disc (2) are circularly arranged, the driven disc (2) is provided with an input shaft (3) at the axis, the outer wall of the input shaft (3) is provided with a pushing block, the outer wall of the driving disc (1) is provided with a rotating groove (4), the inner wall of the rotating groove (4) is composed of a plurality of sector profiles, the rotating groove (4) is rotatably connected with a rotating shaft (7) at the axis, the outer wall of the rotating shaft (7) is fixedly connected with a plurality of fixed blocks (9), the outer wall of each fixed block (9) is slidably connected with a sector centrifugal block (6), the number of the sector centrifugal blocks (6) is consistent with the number of the plurality of sector profiles, and the positions are one-to-one corresponding, the outer wall curve profile radian of each sector centrifugal block (6) is consistent with the sector profile radian, the outer wall of the fixed block (9) is provided with a moving groove (11) penetratingly, the inner wall of the moving groove (11) is fixedly connected with a sliding rod (12), the outer wall of the sliding rod (12) is provided with two groups of grooves and is arranged in an arc shape, the sliding rod (12) is slidably connected with a sliding block (14) outside, the sliding block (14) is fixedly connected with the adjacent sector centrifugal block (6) through a plurality of connecting rods (13), the sliding block (14) is slidably connected with two groups of sliding plates (15) inside, the sliding plates (15) are rotatably connected with a plurality of balls (16) on the side close to the sliding rod (12), the balls (16) roll in the grooves, and the sliding block (14) is provided with an elastic assembly outside to drive the balls (16) to abut in the grooves.

2. The anti-slip improvement of a centrifugal clutch according to claim 1, characterized in that The elastic assembly comprises connecting rods (17) slidably connected to the outer walls of the sliding block (14) on both sides, two groups of the connecting rods (17) are fixedly connected with two groups of the sliding plates (15) respectively, and the outer wall of the sliding rod (12) is sleeved with a spring (8).

3. A slip-prevention improvement for a centrifugal clutch as defined in claim 2, wherein One end of the connecting rod (17) away from the sliding plate (15) is fixedly connected with a limiting block (19), the radius size of the limiting block (19) is greater than that of the connecting rod (17), and the outer wall of the connecting rod (17) is sleeved with a spring (18).

4. A slip-prevention improvement for a centrifugal clutch as defined in claim 3, wherein One end of the spring (18) is fixedly connected with the outer wall of the limiting block (19), and the other end of the spring (18) is fixedly connected with the inner wall of the sliding block (14).

5. A slip-prevention improvement for a centrifugal clutch as defined in claim 4, wherein The end face of the sector centrifugal block (6) is provided with a sliding groove (10) penetratingly, and the upper and lower end faces of the sliding block (14) are respectively attached to the inner top and bottom of the fixed block (9).

6. A slip-prevention improvement for a centrifugal clutch as defined in claim 5, wherein One end of the driving disc (1) away from the driven disc (2) is connected with an external power source through an output shaft (5), and the input shaft (3) and the driven disc (2) rotate synchronously.

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