CN220748891U

CN220748891U - Anti-torsion balance belleville spring

Info

Publication number: CN220748891U
Application number: CN202322552414.2U
Authority: CN
Inventors: 叶隆; 周文成; 施遨翔
Original assignee: Zhejiang Sanhe Spring Co ltd
Current assignee: Zhejiang Sanhe Spring Co ltd
Priority date: 2023-09-19
Filing date: 2023-09-19
Publication date: 2024-04-09
Anticipated expiration: 2033-09-19

Abstract

The utility model relates to the technical field of springs, in particular to an anti-torsion balance disc spring, which comprises a disc spring body, wherein the disc spring body comprises a first disc spring and a second disc spring which are the same in structure, the first disc spring and the second disc spring are coaxially and symmetrically overlapped, a reinforcing ring is coaxially arranged between the first disc spring and the second disc spring, the outer edge of the reinforcing ring is extended to form an annular cavity with the reinforcing ring, and one ends of the first disc spring and the second disc spring, which are close to the reinforcing ring, are all arranged in the annular cavity of the reinforcing ring in a circumferential rotation manner.

Description

Anti-torsion balance belleville spring

Technical Field

The utility model relates to the technical field of springs, in particular to an anti-torsion balanced belleville spring.

Background

Belleville washers, which are conical disks, can be used singly or in series or in parallel, bear static or dynamic loads acting in the axial direction at the upper and lower outer edges, are compressed and deformed until flattened, and store energy as a live load. The automatic conversion to additional compressive load required for sealing is necessary to reduce the continuous need for tightening in gasket, packing use.

When the disc spring is subjected to larger pressure for a long time, irreversible torsion and deformation of the disc spring can be caused, so that the disc spring is damaged, and the problem of poor torsion resistance exists in the conventional disc spring.

Disclosure of Invention

The utility model aims to overcome the defects and the shortcomings of the prior art and provide the torsion-resistant balanced disc spring, which has the advantage of good torsion resistance.

The technical scheme adopted by the utility model is as follows: the utility model provides a balanced belleville spring of torsion-resistant, includes the belleville spring body, the belleville spring body includes first belleville spring and the second belleville spring that the structure is the same, coaxial and symmetry coincide of first belleville spring and second belleville spring, coaxial being equipped with the stiffening ring between first belleville spring and the second belleville spring, the outer fringe of stiffening ring extends there is the dog-ear, the dog-ear forms annular cavity with the stiffening ring, first belleville spring and second belleville spring are close to the annular cavity of stiffening ring that one end homoenergetic circumferential rotation ground set up in the stiffening ring.

Preferably, the outer edge of the belleville spring body is provided with a first wear-resistant smooth layer, and the inner edge of the belleville spring body is provided with a second wear-resistant smooth layer.

Preferably, the first wear-resistant smooth layer and the second wear-resistant smooth layer are both extended with clamping blocks, and grooves matched with the clamping blocks are formed in the disc spring body.

Preferably, an elastic piece and a reset plate are sequentially arranged in the annular cavity, one end of the elastic piece is propped against the inner wall of the annular cavity, the other end of the elastic piece is propped against the reset plate, and the reset plate is propped against the outer edge of the disc spring body.

Preferably, the end face, close to the inner wall of the disc spring body, of the reinforcing ring extends towards the axis direction to form a reset elastic ring, the reset elastic ring and the end face of the reinforcing ring form a certain angle, and the reset elastic ring has certain deformability and can deform along the axial direction.

Preferably, the axis of the reinforcing ring is provided with a sleeve, the outer diameter of the sleeve is smaller than the inner diameter of the reset elastic ring, and the outer diameter of the sleeve is also smaller than the inner diameter of the belleville spring body.

Preferably, the inner edge of the annular cavity is provided with an arc chamfer.

The beneficial effects of the utility model are as follows: according to the utility model, by the design of the anti-torsion balance structure, namely the reinforcing ring with the annular cavity is arranged between the first disc spring and the second disc spring, the annular cavity is used for the first disc spring and the second disc spring to extend into the end, close to the reinforcing ring, of the first disc spring and the second disc spring, and the first disc spring and the second disc spring can circumferentially rotate in the annular cavity, so that a good anti-torsion balance effect of the disc springs can be achieved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that it is within the scope of the utility model to one skilled in the art to obtain other drawings from these drawings without inventive faculty.

FIG. 1 is a schematic view of a torsion-resistant balanced belleville spring in accordance with the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2 at A;

in the figure, the disc spring comprises a 1-disc spring body, a 2-first disc spring, a 3-second disc spring, a 4-reinforcing ring, a 5-folded angle, a 6-annular cavity, a 7-elastic piece, an 8-reset plate, a 9-first wear-resistant smooth layer, a 10-second wear-resistant smooth layer, a 11-clamping block, a 12-groove, a 13-reset elastic ring, a 14-sleeve and a 15-circular arc chamfer.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent.

It should be noted that, in the embodiments of the present utility model, all the expressions "first" and "second" are used to distinguish two entities with the same name but different entities or different parameters, and it is noted that the "first" and "second" are only used for convenience of expression, and should not be construed as limiting the embodiments of the present utility model, and the following embodiments are not described one by one.

The terms of direction and position in the present utility model, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer only to the direction or position of the drawing. Accordingly, directional and positional terms are used to illustrate and understand the utility model and are not intended to limit the scope of the utility model.

As shown in fig. 1 to 3, in an embodiment of the present utility model, an anti-buckling balance disc spring includes a disc spring body 1, the disc spring body 1 includes a first disc spring 2 and a second disc spring 3 with the same structure, the first disc spring 2 and the second disc spring 3 are coaxially and symmetrically overlapped, a reinforcing ring 4 is coaxially disposed between the first disc spring 2 and the second disc spring 3, a bevel 5 extends from an outer edge of the reinforcing ring 4, the bevel 5 and the reinforcing ring 4 form an annular cavity 6, and one ends of the first disc spring 2 and the second disc spring 3, which are close to the reinforcing ring 4, are both circumferentially rotatably disposed in the annular cavity 6 of the reinforcing ring 4. According to the utility model, by arranging the anti-torsion balance structure design, namely the reinforcing ring with the annular cavity is arranged between the first disc spring and the second disc spring, the annular cavity is used for the first disc spring and the second disc spring to extend into the end, close to the reinforcing ring, of the first disc spring and the second disc spring, the first disc spring and the second disc spring can circumferentially rotate in the annular cavity, the effect of unloading force is achieved, and when the disc springs are pressed, the end, close to the reinforcing ring, of the first disc spring and the second disc spring further extends into the annular cavity, so that a good anti-torsion balance effect of the disc springs can be achieved.

The outer edge of the belleville spring body 1 is provided with a first wear-resistant smooth layer 9, and the inner edge of the belleville spring body 1 is provided with a second wear-resistant smooth layer 10. The disc spring is generally sleeved on the mounting rod of the object to provide axial elasticity of the object, the first wear-resistant smooth layer reduces friction force of the contact surface of the disc spring body and the reinforcing ring, when the disc spring body is pressed, the second wear-resistant smooth layer firstly contacts with the outer wall of the mounting rod passing through the middle, the second wear-resistant smooth layer reduces friction force of the contact surface of the disc spring body and the mounting rod, the torsion resistance of the disc spring is further improved, the disc spring is prevented from sliding and misplacement, the durability of the disc spring is further improved by the first wear-resistant smooth layer and the second wear-resistant smooth layer, and the service life of the disc spring is prolonged.

The first wear-resistant smooth layer 9 and the second wear-resistant smooth layer 10 are respectively extended with a clamping block 11, and the disc spring body 1 is provided with a groove 12 matched with the clamping blocks 11. The first wear-resistant smooth layer and the second wear-resistant smooth layer are connected with the disc spring body in a clamping mode through the matching structure of the clamping block and the groove in a clamping mode, the first wear-resistant smooth layer and the second wear-resistant smooth layer can be detached and replaced conveniently, and the disc spring is not easy to fall off after being installed.

An elastic piece 7 and a reset plate 8 are sequentially arranged in the annular cavity 6, one end of the elastic piece 7 abuts against the inner wall of the annular cavity 6, the other end abuts against the reset plate 8, and the reset plate 8 abuts against the outer edge of the disc spring body 1. The elastic piece and the reset plate provide the force of the disc spring body towards the axle center and the stress is even, so that the disc spring body is promoted to be quickly restored, and the good disc spring torsion-resistant balance effect can be achieved.

The end face, close to the inner wall of the disc spring body 1, of the reinforcing ring 4 extends towards the axis direction to form a reset elastic ring 13, the reset elastic ring 13 forms a certain angle with the end face of the reinforcing ring 4, and the reset elastic ring 13 has certain deformability and can deform along the axial direction. Through the structural design of the reset elastic ring, the reset elastic ring provides an axial reaction force to help the disc spring body to reset when the disc spring body is pressed to be in contact with the reset elastic ring, so that the disc spring is further prevented from being twisted.

The axis of the reinforcing ring 4 is provided with a sleeve 14, the outer diameter of the sleeve 14 is smaller than the inner diameter of the reset elastic ring 13, and the outer diameter of the sleeve 14 is also smaller than the inner diameter of the belleville spring body 1. Through the structural design of the sleeve, the center of the sleeve is provided for the installation rod to pass through, so that the disc spring is prevented from sliding and dislocation.

The inner edge of the annular cavity 6 is provided with an arc chamfer 15. Through the structural design of circular arc chamfer, prevent the outer wall of belleville spring body and the inner edge scraping of annular cavity when belleville spring body is pressed or is restoreed, prevent that the outer wall of belleville spring body from being scratched.

The foregoing disclosure is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims.

Claims

1. The utility model provides a balanced belleville spring of torsion-resistant, includes belleville spring body (1), belleville spring body (1) are including first belleville spring (2) and second belleville spring (3) that the structure is the same, coaxial and symmetry coincide, its characterized in that of first belleville spring (2) and second belleville spring (3): the novel disc spring is characterized in that a reinforcing ring (4) is coaxially arranged between the first disc spring (2) and the second disc spring (3), a folding angle (5) is formed in the outer edge of the reinforcing ring (4), the folding angle (5) and the reinforcing ring (4) form an annular cavity (6), and one ends, close to the reinforcing ring (4), of the first disc spring (2) and the second disc spring (3) are arranged in the annular cavity (6) of the reinforcing ring (4) in a circumferential rotation mode.

2. The torsion-resistant balanced belleville spring according to claim 1, wherein: the outer edge of the belleville spring body (1) is provided with a first wear-resistant smooth layer (9), and the inner edge of the belleville spring body (1) is provided with a second wear-resistant smooth layer (10).

3. The torsion-resistant balanced belleville spring according to claim 2, wherein: the first wear-resistant smooth layer (9) and the second wear-resistant smooth layer (10) are respectively extended with a clamping block (11), and the disc spring body (1) is provided with a groove (12) matched with the clamping blocks (11).

4. The torsion-resistant balanced belleville spring according to claim 1, wherein: elastic pieces (7) and reset plates (8) are sequentially arranged in the annular cavity (6), one end of each elastic piece (7) abuts against the inner wall of the annular cavity (6), the other end of each elastic piece abuts against the corresponding reset plate (8), and the reset plates (8) abut against the outer edges of the disc spring bodies (1).

5. The torsion-resistant balanced belleville spring according to claim 1, wherein: the end face, close to the inner wall of the disc spring body (1), of the reinforcing ring (4) extends towards the axis direction to form a reset elastic ring (13), the reset elastic ring (13) and the end face of the reinforcing ring (4) form a certain angle, and the reset elastic ring (13) has certain deformability and can deform along the axial direction.

6. The torsion-resistant balanced disc spring according to claim 5, wherein: the axis of the reinforcing ring (4) is provided with a sleeve (14), the outer diameter of the sleeve (14) is smaller than the inner diameter of the reset elastic ring (13), and the outer diameter of the sleeve (14) is also smaller than the inner diameter of the disc spring body (1).

7. The torsion-resistant balanced belleville spring according to claim 1, wherein: the inner edge of the annular cavity (6) is provided with an arc chamfer (15).