Stainless steel corrosion-resistant belleville spring

Abstract

The utility model discloses a stainless steel corrosion-resistant belleville spring, relates to the field of belleville springs, and aims to solve the problems that most existing belleville springs in the prior art are directly exposed in air, and in some corrosive environments, the belleville springs are easy to corrode, deform and damage. A plurality of belleville spring sets are arranged on the belleville spring center rod, a first round piece is arranged at the upper ends of the multiple belleville spring sets and on the belleville spring center rod, and a first fixing ring is fixedly connected to the outer side of the lower end face of the first round piece. A second round piece is arranged at the lower end of the multiple belleville spring sets and located on center rods of the belleville springs, a second fixing ring is fixedly connected to the outer side of the upper end face of the second round piece, and an annular corrosion-resistant elastic cover is connected between the first round piece and the second round piece. The upper end and the lower end of the annular corrosion-resistant elastic cover are fixedly connected with connecting rings.

Description

TECHNICAL FIELD

[0001] The utility model relates to disc spring field, concretely is a stainless steel corrosion -resistant disc spring. BACKGROUND

[0002] Disc spring is also named Belleville spring washer, it is conical disc, can use single, also can use multiple series or parallel, bears static or dynamic load along axial direction at upper inner edge and lower outer edge, is compressed to produce deformation, until is pressed flat, stores energy as live load. When necessary, it is automatically converted into additional compression load required for sealing to reduce the continuous requirement for tightening of gasket and packing in use.

[0003] The utility model discloses a high temperature disc spring, including the disc spring of upper convex in middle part and the first jack in the middle part of disc spring top, the bottom fixedly connected with a plurality of groups of limit post of annular array distribution of disc spring, the bottom of disc spring is located between a plurality of groups of limit post all set up limit hole, the top of disc spring is fixedly connected with two groups of outer lug outside the first jack.

[0004] The existing disc spring is mostly directly exposed to air, in some corrosive environment, the disc spring is easy to corrode and deform, resulting in damage; therefore, the market urgently needs to develop a stainless steel corrosion -resistant disc spring to help people solve the existing problems. Utility model content

[0005] The utility model discloses a stainless steel corrosion -resistant disc spring, to solve the problem that the existing disc spring is mostly directly exposed to air in the above background art, in some corrosive environment, the disc spring is easy to corrode and deform, resulting in damage.

[0006] To achieve the above object, the utility model provides the following technical scheme: A stainless steel corrosion -resistant disc spring, including butterfly spring center rod, a plurality of groups of butterfly spring groups are arranged on the butterfly spring center rod, a plurality of groups of the upper end of butterfly spring group and on the butterfly spring center rod are provided with first circular sheet, the lower end surface outside fixed connection of first circular sheet has first fixed ring, a plurality of groups of the lower end of butterfly spring group and on the butterfly spring center rod are provided with second circular sheet, the upper end surface outside fixed connection of second circular sheet has second fixed ring, the first circular sheet is connected with the second circular sheet and has annular corrosion -resisting elastic cover, the upper and lower ends of annular corrosion -resisting elastic cover all are fixedly connected with connecting ring.

[0007] Preferably, the butterfly spring group includes a first butterfly spring and a second butterfly spring, and the first butterfly spring and the second butterfly spring are arranged in mirror image.

[0008] Preferably, a first sealing ring is arranged between the first circular sheet and the butterfly spring center rod, and a first external thread part is arranged on the outer side end surface of the first fixed ring on the first circular sheet.

[0009] Preferably, a second sealing ring is arranged between the second circular sheet and the butterfly spring center rod, and a second external thread part is arranged on the outer side end surface of the second fixed ring on the second circular sheet.

[0010] Preferably, an internal thread part is arranged on the inner side end surface of each of the two connecting rings.

[0011] Preferably, the upper end connecting ring of the annular corrosion -resisting elastic cover and the first fixed ring on the first circular sheet are fixedly connected through the internal thread part and the first external thread part.

[0012] Preferably, the lower end connecting ring of the annular corrosion -resisting elastic cover and the second fixed ring on the second circular sheet are fixedly connected through the internal thread part and the second external thread part.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1、The utility model discloses a corrosion -resisting elastic cover is arranged, and a plurality of groups of butterfly spring groups are arranged on the butterfly spring center rod, and the upper end of a plurality of groups of butterfly spring group and on the butterfly spring center rod are provided with first circular sheet, and the lower end of a plurality of groups of butterfly spring group and on the butterfly spring center rod are provided with second circular sheet, and the first circular sheet is connected with the second circular sheet and has annular corrosion -resisting elastic cover, and a plurality of groups of butterfly spring groups are wrapped by the annular corrosion -resisting elastic cover, and the external corrosion environment is isolated from the butterfly spring group, the influence of corrosion environment on the butterfly spring group is reduced, and the annular corrosion -resisting elastic cover has elastic expansion capacity, so that the annular corrosion -resisting elastic cover can move along with the butterfly spring group when working.

[0015] 2. The utility model discloses a first sealing ring is provided between the first circular sheet and the center rod of the butterfly spring, and the first sealing ring is fixedly connected with the first circular sheet, so that the first circular sheet and the center rod of the butterfly spring are sealed by the first sealing ring, external corrosive air is prevented from entering the inside of the annular corrosion-resistant elastic cover, the butterfly spring set is prevented from being affected, and the first circular sheet can slide on the center rod of the butterfly spring.

[0016] 3. The utility model discloses a second sealing ring is provided between the second circular sheet and the center rod of the butterfly spring, and the second sealing ring is fixedly connected with the second circular sheet, so that the second circular sheet and the center rod of the butterfly spring are sealed by the second sealing ring, external corrosive air is prevented from entering the inside of the annular corrosion-resistant elastic cover, the butterfly spring set is prevented from being affected, and the second circular sheet can slide on the center rod of the butterfly spring. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view of the stainless steel corrosion-resistant disc spring of the utility model;

[0018] Figure 2 It is a top view of the utility model;

[0019] Figure 3 It is a main sectional view of the utility model;

[0020] Figure 4 It is an A detail enlarged view of the utility model;

[0021] Figure 5 It is a B detail enlarged view of the utility model.

[0022] In the drawing: 1, center rod of butterfly spring; 2, butterfly spring set; 201, first butterfly spring; 202, second butterfly spring; 3, first circular sheet; 301, first sealing ring; 302, first fixed ring; 303, first outer thread part; 4, second circular sheet; 401, second sealing ring; 402, second fixed ring; 403, second outer thread part; 5, annular corrosion-resistant elastic cover; 501, connecting ring; 502, inner thread part. DETAILED DESCRIPTION

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

[0024] Please refer to Figures 1-5The utility model provides a kind of embodiment: a kind of stainless steel corrosion-resistant disc spring, including butterfly spring center rod 1, be provided with multiple groups of butterfly spring group 2 on butterfly spring center rod 1, the upper end of multiple groups of butterfly spring group 2 and on butterfly spring center rod 1 are provided with first circular sheet 3, first circular sheet 3 lower end surface outer side is fixedly connected with first fixed ring 302, the lower end of multiple groups of butterfly spring group 2 and on butterfly spring center rod 1 are provided with second circular sheet 4, second circular sheet 4 upper end surface outer side is fixedly connected with second fixed ring 402, first circular sheet 3 and second circular sheet 4 are connected with annular corrosion-resistant elastic cover 5, annular corrosion-resistant elastic cover 5 upper and lower ends are all fixedly connected with connecting ring 501, and multiple groups of butterfly spring group 2 are wrapped by annular corrosion-resistant elastic cover 5, is isolated from butterfly spring group 2 in external corrosion environment, reduce the influence of corrosion environment to butterfly spring group 2, while annular corrosion-resistant elastic cover 5 has elastic expansion capacity, so that annular corrosion-resistant elastic cover 5 can follow movement when butterfly spring group 2 works.

[0025] Further, butterfly spring group 2 includes first butterfly spring 201 and second butterfly spring 202, and the first butterfly spring 201 and the second butterfly spring 202 are mirror image arranged.

[0026] Further, a first sealing ring 301 is arranged between the first circular sheet 3 and the butterfly spring center rod 1, the first sealing ring 301 is fixedly connected with the first circular sheet 3, the first sealing ring 301 seals the first circular sheet 3 and the butterfly spring center rod 1, prevents external corrosive air from entering the annular corrosion-resistant elastic cover 5, and affects the butterfly spring group 2, and the first circular sheet 3 can slide on the butterfly spring center rod 1, and a first external thread part 303 is arranged on the outer side end surface of the first fixed ring 302 on the first circular sheet 3.

[0027] Further, a second sealing ring 401 is arranged between the second circular sheet 4 and the butterfly spring center rod 1, the second sealing ring 401 seals the second circular sheet 4 and the butterfly spring center rod 1, prevents external corrosive air from entering the annular corrosion-resistant elastic cover 5, and affects the butterfly spring group 2, and the second circular sheet 4 can slide on the butterfly spring center rod 1, and a second external thread part 403 is arranged on the outer side end surface of the second fixed ring 402 on the second circular sheet 4.

[0028] Further, an internal thread part 502 is arranged on the inner side end surface of the two connecting rings 501.

[0029] Further, the upper end connecting ring 501 of the annular corrosion-resistant elastic cover 5 is fixedly connected with the first circular sheet 3 through the inner thread part 502 and the first outer thread part 303, so that the annular corrosion-resistant elastic cover 5 is fixedly connected with the first circular sheet 3, and meanwhile, the annular corrosion-resistant elastic cover 5 and the first circular sheet 3 are convenient to disassemble.

[0030] Further, the lower end connecting ring 501 of the annular corrosion-resistant elastic cover 5 is fixedly connected with the second circular sheet 4 through the inner thread part 502 and the second outer thread part 403, so that the annular corrosion-resistant elastic cover 5 is fixedly connected with the second circular sheet 4, and meanwhile, the annular corrosion-resistant elastic cover 5 and the second circular sheet 4 are convenient to disassemble.

[0031] Working principle: in use, the butterfly spring center rod 1 is provided with a plurality of butterfly spring groups 2, the upper end of the plurality of butterfly spring groups 2 is provided with the first circular sheet 3 on the butterfly spring center rod 1, the lower end of the plurality of butterfly spring groups 2 is provided with the second circular sheet 4 on the butterfly spring center rod 1, the first circular sheet 3 and the second circular sheet 4 are connected with the annular corrosion-resistant elastic cover 5, the plurality of butterfly spring groups 2 are wrapped by the annular corrosion-resistant elastic cover 5, so that the external corrosion environment is isolated from the butterfly spring groups 2, and the influence of the corrosion environment on the butterfly spring groups 2 is reduced, meanwhile, the annular corrosion-resistant elastic cover 5 has elastic stretching and contracting capacity, so that the annular corrosion-resistant elastic cover 5 can move along with the butterfly spring groups 2 during the working of the butterfly spring groups 2, the first circular sheet 3 and the butterfly spring center rod 1 are provided with the first sealing ring 301, the first sealing ring 301 is fixedly connected with the first circular sheet 3, the first circular sheet 3 and the butterfly spring center rod 1 are sealed by the first sealing ring 301, so that the external corrosion air is prevented from entering the inside of the annular corrosion-resistant elastic cover 5 and affecting the butterfly spring groups 2, meanwhile, the first circular sheet 3 can slide on the butterfly spring center rod 1, the second circular sheet 4 and the butterfly spring center rod 1 are provided with the second sealing ring 401, the second circular sheet 4 and the butterfly spring center rod 1 are sealed by the second sealing ring 401, so that the external corrosion air is prevented from entering the inside of the annular corrosion-resistant elastic cover 5 and affecting the butterfly spring groups 2, meanwhile, the second circular sheet 4 can slide on the butterfly spring center rod 1, the upper end connecting ring 501 of the annular corrosion-resistant elastic cover 5 is fixedly connected with the first circular sheet 3 through the inner thread part 502 and the first outer thread part 303, so that the annular corrosion-resistant elastic cover 5 is fixedly connected with the first circular sheet 3, and meanwhile, the annular corrosion-resistant elastic cover 5 and the first circular sheet 3 are convenient to disassemble, the lower end connecting ring 501 of the annular corrosion-resistant elastic cover 5 is fixedly connected with the second circular sheet 4 through the inner thread part 502 and the second outer thread part 403, so that the annular corrosion-resistant elastic cover 5 is fixedly connected with the second circular sheet 4, and meanwhile, the annular corrosion-resistant elastic cover 5 and the second circular sheet 4 are convenient to disassemble.

[0032] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments and that the application can be implemented in other particular forms without departing from the spirit or essential characteristics of the application. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No limitation is intended to the scope of the claims with respect to any embodiment illustrated in the drawings or described in the above description.

Claims

1. A corrosion resistant disc spring of stainless steel comprising a disc spring center rod (1) characterized in that: The center rod (1) of the butterfly spring is provided with a plurality of groups of butterfly spring groups (2), the upper ends of the plurality of groups of butterfly spring groups (2) are provided with first circular plates (3) on the center rod (1) of the butterfly spring, the outer side of the lower end surface of the first circular plate (3) is fixedly connected with a first fixed ring (302), the lower ends of the plurality of groups of butterfly spring groups (2) are provided with second circular plates (4) on the center rod (1) of the butterfly spring, the outer side of the upper end surface of the second circular plate (4) is fixedly connected with a second fixed ring (402), an annular corrosion-resistant elastic cover (5) is connected between the first circular plate (3) and the second circular plate (4), and the upper and lower ends of the annular corrosion-resistant elastic cover (5) are fixedly connected with connecting rings (501).

2. A corrosion resistant disc spring of stainless steel as claimed in claim 1, wherein: The butterfly spring group (2) comprises a first butterfly spring (201) and a second butterfly spring (202), and the first butterfly spring (201) and the second butterfly spring (202) are mirror image arranged.

3. The corrosion resistant disc spring of stainless steel as claimed in claim 1, wherein: A first sealing ring (301) is arranged between the first circular plate (3) and the center rod (1) of the butterfly spring, and a first outer thread part (303) is arranged on the outer side end surface of the first fixed ring (302) on the first circular plate (3).

4. A corrosion resistant disc spring of stainless steel as claimed in claim 3, wherein: A second sealing ring (401) is arranged between the second circular plate (4) and the center rod (1) of the butterfly spring, and a second outer thread part (403) is arranged on the outer side end surface of the second fixed ring (402) on the second circular plate (4).

5. A corrosion resistant disc spring of stainless steel as claimed in claim 4, wherein: Inner thread parts (502) are arranged on the inner side end surfaces of the two connecting rings (501).

6. A corrosion resistant disc spring of stainless steel as claimed in claim 5, wherein: The upper end connecting ring (501) of the annular corrosion-resistant elastic cover (5) and the first fixed ring (302) on the first circular plate (3) are fixedly connected in screw threads through the inner thread part (502) and the first outer thread part (303).

7. A corrosion resistant disc spring of stainless steel as claimed in claim 6, wherein: The lower end connecting ring (501) of the annular corrosion-resistant elastic cover (5) and the second fixed ring (402) on the second circular plate (4) are fixedly connected in screw threads through the inner thread part (502) and the second outer thread part (403).

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