A clamping structure for a clutch flywheel

Abstract

The utility model relates to clamping equipment technical field and disclose a kind of clamping structure of clutch flywheel, including base, base top middle is connected with main shaft, the top of main shaft is movably connected with rotatable carousel, carousel bottom is locked on base by locking device, and four clamping structures of cross direction distribution are equipped on carousel, and four clamping structures are driven connection by transmission belt, and clamping structure includes the pulley of engagement with transmission belt, pulley is located below carousel, and is connected with the first bevel gear of being equipped above carousel by rotating shaft, and the first bevel gear is driven connection with the second bevel gear of being arranged perpendicularly, the utility model synchronously moves in radial direction by four cross distribution clamping mechanism, while clamping flywheel outer edge, automatically corrects the center thereof and is fixed in carousel center, and by locking device, carousel can be quickly released or locked, and flywheel is rotated to different angle to process.

Description

Technical Field

[0001] This utility model relates to the field of clamping equipment technology, specifically a clamping structure for a clutch flywheel. Background Technology

[0002] The flywheel is a crucial cast iron disc component connected to the rear end of the engine crankshaft. Its outer circumference is inlaid with a gear ring, and its front surface is precision ground to achieve a high gloss finish. This component is typically installed in conjunction with the clutch assembly and primarily performs three key functions: first, utilizing its own inertia to effectively buffer the impact vibrations during engine ignition, ensuring smooth operation; second, providing initial power for engine starting through the meshing of the outer gear ring with the starter gear; and third, using its smooth end face as the friction contact interface of the clutch to achieve reliable power transmission. During manufacturing, a specialized fixture is required to securely clamp the flywheel to ensure positioning accuracy and surface quality.

[0003] Currently, flywheels are generally clamped from both sides. This method makes it impossible to determine the center position of the flywheel when fixing it, which can easily cause deviations during rotational processing. Another method involves first positioning the center of the flywheel and then fixing it from the side, which requires two steps and is not convenient or quick. Utility Model Content

[0004] The purpose of this invention is to provide a clamping structure for a clutch flywheel to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a clamping structure for a clutch flywheel, including a base, a main shaft connected to the top center of the base, the top of the main shaft being movably connected to a rotatable turntable, the bottom surface of the turntable being locked to the base by a locking device, and the turntable having four clamping structures arranged in a cross direction, the four clamping structures being connected by a transmission belt.

[0006] Preferably, the clamping structure includes a pulley that meshes with a transmission belt. The pulley is located below the turntable and is connected to a first bevel gear located above the turntable via a rotating shaft. The first bevel gear is connected to a vertically arranged second bevel gear. The second bevel gear is mounted on the turntable via a first bearing. A nut coaxially connected through the middle of the second bevel gear is connected through the middle of the nut. A threaded rod threadedly connected to the nut is threaded through the middle of the nut. One end of the threaded rod near the center of the turntable is perpendicularly connected to a pressure plate.

[0007] Preferably, the rotating shaft passes through the second bearing and is connected to the inner ring of the second bearing, while the outer ring of the second bearing is connected to the turntable.

[0008] Preferably, a handle is connected to the bottom of the pulley.

[0009] Preferably, a gasket is provided on the side of the pressure plate away from the threaded rod.

[0010] Preferably, the bottom of the pressure plate is in horizontal contact with the turntable, and the pressure plate is slidably mounted on the turntable.

[0011] Preferably, the locking device includes an inner ring and an outer ring connected to the bottom surface of the turntable. The inner ring and the outer ring are coaxially arranged with the main shaft. Two symmetrically arranged braking structures are provided between the inner ring and the outer ring. The braking structures are fixed on the base and slidably connected to the mating block. The mating block is connected to the turntable. Four sets of evenly distributed reset structures are connected to the bottom of the turntable. The reset structure includes a slider connected to the bottom of the turntable. The slider is located in a groove opened at the top of the base and is slidably connected to the groove. The slider is connected to a spring seat through a spring. The spring seat is fixedly connected in the groove. The turntable is connected to a handle.

[0012] Preferably, the braking structure includes a rotating shaft rotatably fitted into a bushing. The bushing is connected to the base on both sides by brackets. The top of the rotating shaft extends between the inner and outer rings. Two rotationally symmetrical braking blocks are provided on the outer side of the top of the rotating shaft, and are fixed by friction with the inner and outer rings through the braking blocks. The bottom of the rotating shaft extends out of the bushing and is vertically connected to a rocker arm. The rocker arm is provided with a second sliding groove that is slidably connected to a mating block. Limiting rings are connected to the upper and lower ends of the rotating shaft at the bushing.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention uses four cross-shaped clamping mechanisms that move radially in sync to clamp the outer edge of the flywheel, automatically correct and fix its center to the center of the turntable, and can quickly release or lock the turntable through a locking device, making it easy for the flywheel to rotate to different angles for processing. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of the clamping structure of the clutch flywheel provided by this utility model;

[0016] Figure 2 A front view of the clamping structure provided by this utility model;

[0017] Figure 3 A schematic diagram of the locking device provided by this utility model;

[0018] Figure 4 A schematic diagram of the braking structure provided by this utility model;

[0019] Figure 5 A schematic diagram of the slide provided by this utility model.

[0020] In the diagram: 1. Base; 2. Main shaft; 3. Turntable; 4. Locking device; 5. Clamping structure; 6. Transmission belt; 7. Pulley; 8. Rotating shaft; 9. First bevel gear; 10. Second bevel gear; 11. First bearing; 12. Nut; 13. Threaded rod; 14. Pressure plate; 15. Second bearing; 16. Handle; 17. Washer; 18. Inner ring; 19. Outer ring; 20. Braking structure; 21. Mating block; 22. Rotating ring; 23. Slider; 24. Spring; 25. Spring seat; 26. Slide groove; 27. Hand lever; 28. Rotating shaft; 29. ​​Bushing; 30. Brake block; 31. Brake; 32. Swing rod; 33. Second slide groove; 34. Limiting ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-5 As shown, a clamping structure for a clutch flywheel includes a base 1 providing support. A main shaft 2 is connected to the top center of the base 1. The top of the main shaft 2 is movably connected to a turntable 3 via a bearing, allowing the turntable 3 to rotate 360 ​​degrees. The bottom surface of the turntable 3 is locked onto the base 1 by a locking device 4, fixing the rotation angle of the turntable 3. The turntable 3 is provided with four clamping structures 5 arranged in a cross direction. The four clamping structures 5 are connected by a transmission belt 6, enabling synchronous movement. By clamping the outer side of the flywheel simultaneously in four opposite directions, the center of the flywheel can be fixed on the center of the turntable 3 while fixing the flywheel, facilitating rotational processing.

[0023] The clamping structure 5 includes pulleys 7 that mesh with the drive belt 6. The wrap angle between the drive belt 6 and the four pulleys 7 is greater than 120°, and both the drive belt 6 and the pulleys 7 are toothed, meshing with each other to prevent slippage. The drive belt 6 can drive the four clamping structures 5 to move synchronously. The pulleys 7 are located below the turntable 3 and are connected to a first bevel gear 9 located above the turntable 3 via a rotating shaft 8. The first bevel gear 9 is connected to a vertically arranged second bevel gear 10, changing the direction of the power transmission shaft and providing horizontal movement. The second bevel gear 10 is mounted on the turntable 3 via the first bearing 11, which facilitates the rotation of the second bevel gear 10. A nut 12 is coaxially connected through the middle of the second bevel gear 10, so that the nut 12 rotates synchronously when the second bevel gear 10 rotates. A threaded rod 13 is threaded through the middle of the nut 12, and the rotation of the nut 12 can drive the threaded rod 13 to move horizontally. The end of the threaded rod 13 near the center of the turntable 3 is perpendicularly connected to the pressure plate 14, which can push the pressure plate 14 to press and release the flywheel.

[0024] The rotating shaft 8 passes through the second bearing 15 and is connected to the inner ring of the second bearing 15. The outer ring of the second bearing 15 passes through and is connected to the turntable 3, so that the rotating shaft 8 can rotate while fixing its position. This allows the first bevel gear 9 and the pulley 7 located on the upper and lower surfaces of the turntable 3 to be connected.

[0025] A handle 16 is connected to the bottom of the pulley 7 for easy rotation and tightening.

[0026] A gasket 17 is provided on the side of the pressure plate 14 away from the threaded rod 13, so that there is a buffer zone between the pressure plate 14 and the flywheel.

[0027] The bottom of the pressure plate 14 is in horizontal contact with the turntable 3, and the pressure plate 14 is slidably mounted on the turntable 3, so that the radial angle of the threaded rod 13 is fixed and it can move horizontally, thereby driving the pressure plate 14 to slide horizontally on the turntable 3.

[0028] The locking device 4 includes an inner ring 18 and an outer ring 19 connected to the bottom surface of the turntable 3. The inner ring 18 and outer ring 19 are coaxially arranged with the main shaft 2. Two symmetrically arranged braking structures 20 are provided between the inner ring 18 and outer ring 19. Therefore, when the turntable 3 rotates, the braking structures 20 are always located between the inner ring 18 and outer ring 19, which facilitates frictional fixation of the inner ring 18 and outer ring 19, thereby fixing the turntable 3. The braking structures 20 are fixed on the base 1 and slidably connected to the mating block 21. The mating block 21 is connected to the rotating ring 22. Therefore, the rotation of the rotating ring 22 drives the braking structures 20 to move through the mating block 21. The bottom of the rotating ring 22 is connected to four evenly distributed sets of reset structures, which give the rotating ring 22 a clockwise rotational driving force without external force, enabling the braking structures 20 to move the turntable 3. The braking and reset structure includes a slider 23 connected to the bottom of the rotating ring 22. The slider 23 is located in a groove 26 opened at the top of the base 1, and the slider 23 is slidably connected to the groove 26. The cooperation between the slider 23 and the groove 26 can fix the rotation track of the rotating ring 22 and prevent the rotating ring 22 from falling off the base 1. The slider 23 is connected to a spring seat 25 through a spring 24. The spring seat 25 is fixedly connected in the groove 26, so that the slider 23 can be automatically reset. The rotating ring 22 is connected to a lever 27 for pulling the rotating ring 22 to rotate. When the rotating ring 22 rotates counterclockwise, it overcomes the elasticity of the reset structure and drives the braking structure 20 to move and release the inner ring 18 and the outer ring 19, thereby enabling the rotating disk 3 to rotate. Releasing the lever 27 allows the rotating disk 3 to be automatically reset and fixed by the reset structure.

[0029] The braking structure 20 includes a rotatable rotating shaft 28, which is rotatably sleeved in a bushing 29. This bushing 28 is able to fix the position of its central axis, ensuring it remains between the inner ring 18 and the outer ring 19. Both sides of the bushing 29 are connected to the base 1 via brackets 31. The top of the rotating shaft 28 extends between the inner ring 18 and the outer ring 19. Two rotationally symmetrical braking blocks 30 are provided on the outer side of the top of the rotating shaft 28, and these blocks are connected to the inner ring 18 and the outer ring 19. Friction fixation is achieved, so the forward and reverse rotation of the rotating shaft 28 can drive the brake block 30 to brake or release the inner ring 18 and outer ring 19. The bottom of the rotating shaft 28 extends out of the bushing 29 and is vertically connected to the rocker arm 32. The rocker arm 32 is provided with a second sliding groove 33 that is slidably connected to the mating block 21, so that when the mating block 21 rotates, it can drive the rotating shaft 28 to rotate through the rocker arm 32. The upper and lower ends of the rotating shaft 28 are respectively connected to limit rings 34, which can fix the axial position of the rotating shaft 28.

[0030] Working principle: The clutch flywheel is initially placed in the center area of ​​the turntable 3. Holding one of the handles 16 drives the pulley 7 to rotate. Through the transmission belt 6, the other three clamping structures 5 can be driven to move synchronously. When the pulley 7 rotates, the power is transmitted to the nut 12 through the first bevel gear 9 and the second bevel gear 10, so that the nut 12 rotates and pushes the threaded rod 13 to move horizontally, so that the four pressure plates 14 move towards the center at the same time and press the flywheel.

[0031] When the turntable 3 needs to be rotated, pulling the lever 27 causes the rotating ring 22 to rotate counterclockwise. The mating block 21 moves accordingly, forcing the swing arm 32 to swing and drive the rotating shaft 28 to rotate. This causes the two brake blocks 30 fixed to the top of the rotating shaft 28 to release their frictional grip on the inner ring 18 and outer ring 19 on the bottom surface of the turntable 3. When fixing, releasing the lever 27 causes the restoring force of the spring 24 to push the slider 23 to move in the groove 26 under the action of the reset structure. This drives the rotating ring 22 to rotate clockwise automatically, causing the two brake blocks 30 at the top to press back onto the inner ring 18 and outer ring 19. Through friction, the turntable 3 is firmly locked onto the base 1.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clamping structure for a clutch flywheel, comprising a base (1), characterized in that, The base (1) has a main shaft (2) connected to the top center. The top of the main shaft (2) is movably connected to a rotatable turntable (3). The bottom surface of the turntable (3) is locked to the base (1) by a locking device (4). The turntable (3) has four clamping structures (5) arranged in a cross direction. The four clamping structures (5) are connected to each other by a transmission belt (6).

2. The clamping structure for a clutch flywheel according to claim 1, characterized in that: The clamping structure (5) includes a pulley (7) that meshes with a transmission belt (6). The pulley (7) is located below the turntable (3) and is connected to a first bevel gear (9) located above the turntable (3) via a rotating shaft (8). The first bevel gear (9) is connected to a vertically arranged second bevel gear (10) for transmission. The second bevel gear (10) is mounted on the turntable (3) via a first bearing (11). A nut (12) is coaxially connected through the middle of the second bevel gear (10). A threaded rod (13) is threaded through the middle of the nut (12). One end of the threaded rod (13) near the center of the turntable (3) is vertically connected to the pressure plate (14).

3. The clamping structure for a clutch flywheel according to claim 2, characterized in that: The rotating shaft (8) passes through the second bearing (15) and is connected to the inner ring of the second bearing (15), while the outer ring of the second bearing (15) is connected to the turntable (3).

4. The clamping structure for a clutch flywheel according to claim 2, characterized in that: The bottom of the pulley (7) is connected to a handle (16).

5. The clamping structure for a clutch flywheel according to claim 2, characterized in that: The pressure plate (14) has a gasket (17) on the side away from the threaded rod (13).

6. The clamping structure for a clutch flywheel according to claim 2, characterized in that: The bottom of the pressure plate (14) is in horizontal contact with the turntable (3), and the pressure plate (14) is slidably mounted on the turntable (3).

7. The clamping structure for a clutch flywheel according to claim 1, characterized in that: The locking device (4) includes an inner ring (18) and an outer ring (19) connected to the bottom surface of the turntable (3). The inner ring (18) and the outer ring (19) are coaxially arranged with the main shaft (2). Two symmetrically arranged braking structures (20) are provided between the inner ring (18) and the outer ring (19). The braking structures (20) are fixed on the base (1) and slidably connected to the mating block (21). The mating block (21) is connected to the rotating ring (22). The bottom is connected to four sets of evenly distributed reset structures. The reset structure includes a slider (23) connected to the bottom of the rotating ring (22). The slider (23) is located in a groove (26) opened at the top of the base (1), and the slider (23) is slidably connected to the groove (26). The slider (23) is connected to the spring seat (25) through a spring (24). The spring seat (25) is fixedly connected in the groove (26). The rotating ring (22) is connected to a handle (27).

8. The clamping structure for a clutch flywheel according to claim 7, characterized in that: The braking structure (20) includes a rotating shaft (28), which is rotatably fitted in a bushing (29). The bushing (29) is connected to the base (1) on both sides by brackets (31). The top of the rotating shaft (28) extends between the inner ring (18) and the outer ring (19). Two rotationally symmetrical brake blocks (30) are provided on the outer side of the top of the rotating shaft (28), and the brake blocks (30) are fixed by friction with the inner ring (18) and the outer ring (19). The bottom of the rotating shaft (28) extends out of the bushing (29) and is vertically connected to a rocker arm (32). The rocker arm (32) is provided with a second sliding groove (33) that is slidably connected to the mating block (21). Limiting rings (34) are connected to the upper and lower ends of the rotating shaft (28) located in the bushing (29).

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