Flywheel and friction plate bonding tool

Abstract

The utility model relates to the technical field of bonding tool, provide a kind of flywheel and friction plate bonding tool, including base, apron, strut and locking piece, the lower end of strut is equipped with tray, base is supported by tray, the top of base has the arc convex surface cooperation with flywheel inner side camber surface, apron bottom has the arc concave surface cooperation with friction plate outer side camber surface, base and apron are all set on strut, locking piece is connected on the upper end of strut by screw thread and locking apron, to clamp and fix friction plate and flywheel between apron and base. The utility model provides the bonding tool for flywheel and friction plate bonding fixed in centrifugal brake, can make friction plate and flywheel be clamped and fixed stably between base and apron, avoid the deviation of friction plate and flywheel.

Description

Technical Field

[0001] This utility model relates to the field of bonding tooling technology, and more specifically, to a bonding tooling for a flywheel and a friction plate. Background Technology

[0002] The flywheel (equivalent to the brake disc in a disc brake) is the braking actuator in a centrifugal brake. A centrifugal brake is a mechanical device that uses centrifugal force to achieve automatic braking. Its core principle is that by changing the rotational speed of the rotating component, the centrifugal component grips the friction pads on the arc surface of the flywheel, thereby consuming kinetic energy and slowing down or stopping the rotation. It is widely used in elevators, cranes, amusement equipment, automobiles (such as some handbrake assists), etc., and is especially suitable for safety braking needs that "prevent excessive speed".

[0003] refer to Figure 1 The flywheel is generally arc-shaped, with both the inner and outer sides being curved surfaces. The friction pads are placed on the outer curved surface of the flywheel to enhance friction and prevent direct wear on the flywheel. Similarly, the inner and outer sides of the friction pads are also curved surfaces. Currently, there is no specialized tooling for bonding the friction pads to the flywheel; instead, heavy objects are applied for pressure, followed by baking and curing in an oven. This method has drawbacks such as unstable clamping and easy misalignment of the friction pads and flywheel. Utility Model Content

[0004] The purpose of this invention is to provide a tooling for bonding a flywheel and a friction plate, so as to solve the above-mentioned defects of the prior art.

[0005] This utility model is achieved through the following technical solution:

[0006] A flywheel and friction plate bonding fixture includes a base, a cover plate, a support rod, and a locking component. The lower end of the support rod is provided with a tray, and the base is supported by the tray. The top of the base has an arc-shaped convex surface that matches the inner arc surface of the flywheel, and the bottom of the cover plate has an arc-shaped concave surface that matches the outer arc surface of the friction plate. Both the base and the cover plate are sleeved on the support rod. The locking component is threaded to the upper end of the support rod and locks the cover plate to clamp and fix the friction plate and the flywheel between the cover plate and the base.

[0007] Optionally, the bonding fixture also includes a pressure elastic element and a pad, both of which are sleeved on the support rod. The pad is located below the locking element, and the elastic element is pressed between the pad and the cover plate.

[0008] Optionally, the elastic element is a spring.

[0009] Optionally, the arc-shaped convex surface is provided with a first positioning groove that mates with the inner side of the flywheel; the arc-shaped concave surface is provided with a second positioning groove that mates with the outer side of the friction plate.

[0010] Optionally, the bottom of the first positioning groove and the second positioning groove are provided with through holes.

[0011] Optionally, at least two flywheels can be placed on top of the base.

[0012] Optionally, the locking element is a nut.

[0013] Optionally, the tray and the support rod are connected by threads.

[0014] The technical solution of this utility model has at least the following advantages and beneficial effects: The bonding fixture provided by this utility model can be used specifically for bonding and fixing the flywheel and friction plate in a centrifugal brake. The arc-shaped convex surface at the top of the base cooperates with the inner side of the flywheel, and the arc-shaped concave surface at the bottom of the cover plate cooperates with the outer side of the friction plate. The base and the cover plate are both sleeved on the support rod, and the cover plate is locked by the locking device, so that the friction plate and the flywheel are stably clamped and fixed between the base and the cover plate, avoiding the friction plate and the flywheel from shifting. Attached Figure Description

[0015] Figure 1 An exploded view of a flywheel and friction plate in the prior art;

[0016] Figure 2 This is a front view of a flywheel and friction plate bonding fixture provided in Example 1;

[0017] Figure 3 for Figure 2 AA section view in the middle;

[0018] Figure 4 This is a schematic diagram of the cover plate in Example 1;

[0019] Figure 5 This is a schematic diagram of the base structure in Example 1;

[0020] Figure 6 This is a schematic diagram of the cover plate in Example 2;

[0021] Figure 7 This is a schematic diagram of the base structure in Example 2;

[0022] Reference numerals: 1-flywheel, 2-friction plate, 3-base, 301-arc convex surface, 302-first positioning groove, 4-cover plate, 401-arc concave surface, 402-second positioning groove, 5-tray, 6-support rod, 7-locking element, 8-elastic element, 9-pad. Detailed Implementation

[0023] Example 1

[0024] refer to Figures 2-5A bonding fixture for a flywheel 1 and a friction plate 2 includes a base 3, a cover plate 4, a support rod 6, and a locking component 7. The lower end of the support rod 6 is provided with a tray 5. The top of the base 3 has an arc-shaped convex surface 301 that matches the inner arc surface of the flywheel 1, that is, the top of the base 3 can fit against the inner arc surface of the flywheel 1. The bottom of the cover plate 4 has an arc-shaped concave surface 401 that matches the outer arc surface of the friction plate 2, that is, the top of the cover plate 4 can fit against the outer arc surface of the friction plate 2.

[0025] Both the base 3 and the cover plate 4 are fitted onto the support rod 6. The base 3 and cover plate 4 have corresponding through holes that mate with the support rod 6. The base 3 is supported by the tray 5. The locking element 7 is threadedly connected to the upper end of the support rod 6 and locks the cover plate 4, clamping and fixing the friction plate 2 and the flywheel 1 between the cover plate 4 and the base 3. This ensures that the friction plate 2 and the flywheel 1 are stably clamped and fixed between the base 3 and the cover plate 4, preventing them from shifting. In practical applications, the tray 5 facilitates placing the entire fixture in an oven for baking, accelerating the hardening of the adhesive between the friction plate 2 and the flywheel 1.

[0026] Those skilled in the art should understand that the bottom of the base 3 should be flat to facilitate contact with the top surface of the tray 5, and the top of the cover plate 4 should also be flat to facilitate the fastening of the locking element 7.

[0027] Alternatively, in this embodiment, the tray 5 and the lower end of the support rod 6 are connected by threads. Specifically, the tray 5 has a threaded hole in the middle, and the lower end of the support rod 6 has external threads. After the tray 5 is tightened, it fits onto the support rod 6. It is easy to understand that the lower end of the support rod 6 should not extend beyond the bottom surface of the tray 5 to avoid affecting the placement of the tray 5 in the oven. In other embodiments, the tray 5 can also be welded to the support rod 6, or the tray 5 and the support rod 6 can be connected and fastened by screws (attention should be paid to the countersunk design of the screws to avoid extending beyond the bottom surface of the tray 5).

[0028] As is easily understood, based on the above, both ends of the support rod 6 are provided with external threads. The lower external thread connects to the tray 5, and the upper external thread connects to the locking element 7. The middle section of the support rod 6 is a smooth rod, which mates with the through holes on the base 3 and the cover plate 4. In this utility model, the locking element 7 is a nut, that is, the nut replaces the locking element 7, making it easier to turn the locking element 7 with a wrench, thus making the operation more convenient.

[0029] In this embodiment, the support rod 6 passes through the center of the base 3 and the cover plate 4. The base 3 and the cover plate 4 are of sufficient length to allow two flywheels 1 and two corresponding friction plates 2 to be placed between the base 3 and the cover plate 4. In other embodiments, the base 3 and the cover plate 4 can be designed to be longer so that more flywheels 1 and friction plates 2 can be clamped at once.

[0030] Furthermore, in this embodiment, the bonding fixture also includes a pressure-applying elastic element 8 (preferably a spring) and a pad 9. Both the elastic element 8 and the pad 9 are sleeved on the support rod 6, with the pad 9 located below the locking element 7. The elastic element 8 is pressed between the pad 9 and the cover plate 4. It is worth noting that the elastic element 8 can provide elastic compression, facilitating continuous pressure on the cover plate 4. Even if the adhesive between the friction plate 2 and the flywheel 1 expands or contracts during the curing process, the elastic compression can compensate for the pressure in a timely manner, improving the reliability of the applied pressure.

[0031] Example 2

[0032] refer to Figure 6 and Figure 7 This embodiment further optimizes upon embodiment 1. Specifically, this embodiment provides a first positioning groove 302 on the arc-shaped convex surface 301 that mates with the inner side of the flywheel 1, and a second positioning groove 402 on the arc-shaped concave surface 401 that mates with the outer side of the friction plate 2. The first positioning groove 302 facilitates accurate positioning of the flywheel 1, and the second positioning groove 402 facilitates accurate positioning of the friction plate 2, improving the accuracy of the relative positions of the friction plate 2 and the flywheel 1. Those skilled in the art should understand that the sidewalls at both ends of the second positioning groove 402 on the arc-shaped concave surface 401 should be vertical (i.e., parallel to the support rod 6) to ensure that the friction plate 2 can be removed and placed into the second positioning groove 402.

[0033] Furthermore, the bottom of the first positioning groove 302 and the second positioning groove 402 are provided with through holes. This arrangement serves two purposes: firstly, it facilitates the ejection of the friction plate 2 or the flywheel 1 using tools such as ejectors; secondly, it also helps to break the vacuum, preventing the formation of negative pressure between the first positioning groove 302 and the second positioning groove 402, which would make it difficult to remove.

[0034] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tooling for bonding a flywheel to a friction plate, characterized in that, The device includes a base, a cover plate, a support rod, and a locking component. The lower end of the support rod has a tray, and the base is supported by the tray. The top of the base has an arc-shaped convex surface that matches the inner arc surface of the flywheel, and the bottom of the cover plate has an arc-shaped concave surface that matches the outer arc surface of the friction plate. Both the base and the cover plate are fitted onto the support rod. The locking component is threaded to the upper end of the support rod and locks the cover plate in place, thereby clamping and fixing the friction plate and flywheel between the cover plate and the base.

2. The flywheel and friction plate bonding fixture according to claim 1, characterized in that, The bonding fixture also includes a pressure elastic element and a pad. Both the elastic element and the pad are sleeved on the support rod. The pad is located below the locking element, and the elastic element is pressed between the pad and the cover plate.

3. The flywheel and friction plate bonding fixture according to claim 2, characterized in that, The elastic element is a spring.

4. The flywheel and friction plate bonding fixture according to claim 1, characterized in that, The arc-shaped convex surface is provided with a first positioning groove that mates with the inner side of the flywheel; the arc-shaped concave surface is provided with a second positioning groove that mates with the outer side of the friction plate.

5. The flywheel and friction plate bonding fixture according to claim 4, characterized in that, The bottom of the first positioning groove and the second positioning groove are provided with through holes.

6. The flywheel and friction plate bonding fixture according to any one of claims 1-5, characterized in that, The base can accommodate at least two flywheels on its top.

7. The flywheel and friction plate bonding fixture according to any one of claims 1-5, characterized in that, The locking component is a nut.

8. The flywheel and friction plate bonding fixture according to any one of claims 1-5, characterized in that, The tray and the support rod are connected by threads.

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