Combined belleville spring

Abstract

The utility model provides a combined belleville spring which comprises a belleville spring body, a placing ring and a bolt, a placing groove is formed in the upper portion of the belleville spring body, a plurality of first limiting holes are formed in the bottom face of the placing groove, a plurality of second limiting holes are formed in the circumference of the upper portion of the placing ring at equal intervals in a penetrating mode, and a plurality of protruding supporting parts are arranged on the upper portion of the placing ring. The multiple bolts are arranged, butt joint holes are formed in the middle of the belleville spring body in a penetrating mode, first threads matched with the bolts are formed in the multiple first limiting holes correspondingly, second threads matched with the bolts are formed in the multiple second limiting holes correspondingly, and an anti-abrasion coating is arranged in an area defined by the butt joint holes and the inner ring of the containing groove. The belleville spring is reasonable in structure and good in practicability, the position of the screw is adjusted, abrasion of external equipment to the threaded portion of the screw is reduced, the anti-abrasion range of the surface of the belleville spring is enlarged, and the service life of the belleville spring is further prolonged.

Description

Technical Field

[0001] The utility model relates to a combined disc spring, belonging to the technical field of disc springs. Background Art

[0002] A spring is a mechanical part that works using elasticity. A part made of elastic material deforms under the action of an external force and returns to its original state after the external force is removed. Springs come in a complex variety. Classified by shape, there are mainly helical springs, scroll springs, leaf springs, special-shaped springs, etc. A disc spring, also known as a Belleville spring washer, was invented by a Frenchman named Belleville. It is a washer-shaped spring with a truncated conical cross-section made of metal sheet or forged blank. It can be used individually or in series or parallel combinations. It bears static or dynamic loads acting axially at the upper inner edge and lower outer edge, deforms after being compressed until it is flattened, stores energy as a live load, and automatically converts into the additional compression load required for sealing when necessary to reduce the continuous requirement for tightening in the use of gaskets and packings.

[0003] Patent No.: CN210218511U mentions a combined disc spring. By designing spring pieces inside the fixed block, it avoids the weakening of the spring's elasticity and looseness during long-term use of the disc spring. When fixed, the spring pieces are pressed down inside the second groove through the elastic deformation of the tightly pressed spring, achieving the effect of fixing the disc spring body and the used components by the spring pieces, realizing stronger elasticity, firmer fixation, and extending the service life of the disc spring body. However, during use, since the screw directly bears the pressure from external equipment, the threaded part will be worn, and over time, the screw will be damaged and need to be frequently replaced, increasing the maintenance cost. Moreover, the anti-wear protection for the surface of the disc spring has great limitations. There is an urgent need for a combined disc spring to solve the above problems. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a combined disc spring to solve the problems raised in the above background art. The structure of the utility model is reasonable and has good practicability. It adjusts the position of the screw, reduces the wear of the threaded part of the screw by external equipment, and increases the anti-wear range of the surface of the disc spring, further enhancing the service life of the disc spring.

[0005] To achieve the above object, the present utility model is realized through the following technical solutions: A combined disc spring, comprising a disc spring body, a placement ring, and bolts. A placement groove is provided above the disc spring body, and a plurality of first limiting holes are provided on the bottom surface of the placement groove. A plurality of second limiting holes are equidistantly penetrated through the circumference above the placement ring. A plurality of convex support portions are provided above the placement ring. There are a plurality of bolts. A docking hole is penetrated through the middle of the disc spring body. First threads matching the bolts are respectively provided in a plurality of the first limiting holes, and second threads matching the bolts are respectively provided in a plurality of the second limiting holes. An anti-wear coating is provided in the area enclosed between the docking hole and the inner circle of the placement groove.

[0006] Further, a soft anti-wear sleeve is sleeved on the side of the disc spring body.

[0007] Further, the soft anti-wear sleeve is adhered to the disc spring body by glue.

[0008] Further, a wear-resistant cylinder is installed inside the docking hole.

[0009] Further, the wear-resistant cylinder is made of nylon material.

[0010] Further, buffer pads are respectively fixed above a plurality of the convex support portions.

[0011] The beneficial effects of the present utility model: For a combined disc spring of the present utility model, because the present utility model adds an anti-wear coating, a soft anti-wear sleeve, a wear-resistant cylinder, convex support portions, buffer pads, and a placement ring, through our design improvement and actual use, it shows that the structure of this device is reasonable and has good practicability. It adjusts the position of the screw, reduces the wear of the screw thread part by external equipment, and increases the anti-wear range of the surface of the disc spring, further enhancing the service life of the disc spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, purposes, and advantages of the present utility model will become more obvious:

[0013] Figure 1 It is a three-dimensional schematic diagram of the overall structure of a combined disc spring of the present utility model;

[0014] Figure 2 It is a three-dimensional schematic diagram of the structure at the placement groove position of a combined disc spring of the present utility model;

[0015] Figure 3 It is a three-dimensional schematic diagram of the soft anti-wear sleeve structure of a combined disc spring of the present utility model;

[0016] Figure 4Schematic three-dimensional view of the placement ring structure of a combined disc spring of the present utility model;

[0017] Figure 5 Schematic three-dimensional view of the sectional structure of a combined disc spring of the present utility model.

[0018] In the figure: 1-disc spring body, 2-abrasion-resistant coating, 3-soft abrasion-resistant sleeve, 4-docking hole, 5-wear-resistant cylinder, 6-buffer pad, 7-placement ring, 8-bolt, 9-protruding support part, 10-placement groove, 11-first limit hole, 12-first thread, 13-second limit hole, 14-second thread. Specific embodiments

[0019] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] Please refer to Figures 1-5 , the present utility model provides a technical solution: a combined disc spring, including a disc spring body 1, a placement ring 7 and a bolt 8. A placement groove 10 is opened above the disc spring body 1, and a plurality of first limit holes 11 are opened on the bottom surface of the placement groove 10. A plurality of second limit holes 13 are equidistantly penetrated through the circumference above the placement ring 7. A plurality of protruding support parts 9 are provided above the placement ring 7. There are a plurality of bolts 8. A docking hole 4 is penetrated through the middle of the disc spring body 1. First threads 12 matching the bolts 8 are respectively opened in a plurality of first limit holes 11, and second threads 14 matching the bolts 8 are respectively opened in a plurality of second limit holes 13. An abrasion-resistant coating 2 is provided in the area surrounded by the docking hole 4 and the inner circle of the placement groove 10. This design solves the problem that in the original device, since the screw is directly subjected to the pressure of the external device, the threaded part will be worn, and over time, the screw will be damaged and needs to be frequently replaced, increasing the maintenance cost, and the abrasion protection of the disc spring surface has great limitations.

[0021] As the first embodiment of the present utility model: A soft abrasion-resistant sleeve 3 is sleeved on the side of the disc spring body 1. The soft abrasion-resistant sleeve 3 is adhered to the disc spring body 1 by glue. By setting the soft abrasion-resistant sleeve 3, it is convenient to protect the side of the disc spring body 1 from abrasion. Adhering the soft abrasion-resistant sleeve 3 to the disc spring body 1 by glue makes the soft abrasion-resistant sleeve 3 not easy to fall off. A wear-resistant cylinder 5 is installed inside the docking hole 4. By setting the wear-resistant cylinder 5, the friction between the installation device and the inner wall of the disc spring can be effectively reduced. The wear-resistant cylinder 5 is made of nylon material. By using the nylon material wear-resistant cylinder 5, it is because the nylon material has good strength and can withstand most physical pressures. Buffer pads 6 are respectively fixed above a plurality of protruding support parts 9. By setting the buffer pads 6, it is convenient to buffer the pressure received by the disc spring body 1.

[0022] As the second embodiment of the present utility model: during use, first place the placement ring 7 inside the placement groove 10, then align the plurality of first limiting holes 11 with the plurality of second limiting holes 13. Next, screw the plurality of bolts 8 with the plurality of second limiting holes 13, and penetrate through the plurality of second limiting holes 13 into the plurality of first limiting holes 11 and screw them with the plurality of first limiting holes 11. Then connect the two disc spring bodies 1 to external devices respectively through the docking holes 4. The two disc spring bodies 1 are stacked together. When the disc spring body 1 is subjected to pressure, the buffer pad 6 is first subjected to pressure, and then the pressure is transmitted between the two disc spring bodies 1. The convex support portion 9 cooperates with the buffer pad 6 to avoid the bolts 8 from being subjected to excessive external extrusion pressure, thereby preventing the threaded portions of the bolts 8 from being worn.

[0023] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any regard, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claimed rights.

[0024] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard 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 combined disc spring, comprising a disc spring body (1), a placement ring (7) and a bolt (8), characterized in that: Above the disc spring body (1), a placement groove (10) is provided. On the bottom surface of the placement groove (10), a plurality of first limiting holes (11) are provided. Above the placement ring (7), a plurality of second limiting holes (13) are equidistantly perforated through the circumference. Above the placement ring (7), a plurality of convex support parts (9) are provided. A plurality of bolts (8) are provided. In the middle of the disc spring body (1), a docking hole (4) is perforated through. In the inner parts of the plurality of first limiting holes (11), first threads (12) matching the bolts (8) are respectively provided. In the inner parts of the plurality of second limiting holes (13), second threads (14) matching the bolts (8) are respectively provided. In the area enclosed between the docking hole (4) and the inner circle of the placement groove (10), an anti-wear coating (2) is provided.

2. The combined disc spring according to claim 1, characterized in that: A soft anti-wear sleeve (3) is sleeved on the side of the disc spring body (1).

3. The combined disc spring according to claim 2, characterized in that: The soft anti-wear sleeve (3) is adhered to the disc spring body (1) by glue.

4. The combined disc spring according to claim 1, characterized in that: A wear-resistant cylinder (5) is installed inside the docking hole (4).

5. The combined disc spring according to claim 4, characterized in that: The wear-resistant cylinder (5) is made of nylon material.

6. A combined disc spring according to claim 1, characterized in that: Buffer pads (6) are respectively fixed above the plurality of convex support parts (9).

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