Wear-resistant belleville spring

Abstract

The utility model discloses a wear-resistant belleville spring, relates to the technical field of belleville springs, and aims to solve the problems that in the prior art, when a plurality of traditional belleville springs are combined for use and bear load for buffering, friction can be generated among the plates, so that the belleville springs are worn, the service life is shortened, and the maintenance cost is increased. The outer side of the center column is sleeved with a plurality of belleville spring sets, each belleville spring set comprises a first belleville spring body and a second belleville spring body, the first belleville spring bodies and the second belleville spring bodies are both conical disc-shaped plates, the large-diameter end faces of the first belleville spring bodies and the large-diameter end faces of the second belleville spring bodies face each other, and the large-diameter end faces of the first belleville spring bodies and the large-diameter end faces of the second belleville spring bodies face each other. A plurality of compression springs are arranged between the first belleville spring body and the second belleville spring body and annularly distributed along the circumference of the center column, and an upper fixing seat is fixedly mounted above the compression springs and fixedly connected with the first belleville spring body.

Description

Technical Field

[0001] The utility model relates to the technical field of disc springs, in particular to a wear-resistant disc spring. Background Art

[0002] Disc springs are named for their conical disc-shaped shape, which is like a bottomless metal plate or bowl. In the automotive field, disc springs mainly serve the suspension and braking systems, playing a role in buffering and shock absorption, improving driving comfort and stability; in the field of industrial machinery, disc springs play a key role in transmission and shock absorption systems, ensuring the efficient operation of machinery and extending its service life;

[0003] For example, the authorized patent with announcement number CN210344125U (a disc spring and a disc spring assembly for disc spring assemblies): comprises a disc spring body, the outer end side surface of the disc spring body is provided with a first supporting surface perpendicular to the axial direction, the inner end side surface is provided with a second supporting surface perpendicular to the axial direction, the inner end of the disc spring body is provided with a hollow shaft sleeve portion, the shaft sleeve portion is provided with at least one insert portion extending axially in the direction of the first supporting surface along the circumferential direction, and is provided with slot portions arranged between the insert portions and the same number as the insert portions, when a pair of disc springs are stacked up and down, the first supporting surface is fitted and connected with the first supporting surface of the other disc spring, the insert portion at the inner end is correspondingly arranged with the slot portion of the other disc spring, when the deformation reaches the limit of the disc spring, the insert portion is fully inserted into the slot portion to resist the other disc spring to prevent further deformation, and the length of the insert portion is set according to the maximum deformation that the disc spring can withstand;

[0004] Although the above-mentioned existing technology is convenient for preventing the disc spring from continuing to deform when reaching its limit, when the traditional disc spring is used in combination of multiple pieces to bear the load for buffering, friction will occur between the pieces, causing the disc spring to wear, resulting in a shortened service life and increased maintenance costs; therefore, the market urgently needs to develop a wear-resistant disc spring to help people solve the existing problems. Utility Model Content

[0005] The utility model aims to provide a wear-resistant disc spring to solve the problem in the above-mentioned background technology that when a plurality of disc springs are used in combination to bear loads for buffering, friction occurs between the disc springs, causing the disc springs to wear, resulting in a shortened service life and increased maintenance costs.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wear-resistant disc spring, comprising a central column, a plurality of disc spring groups are sleeved on the outer side of the central column, and each disc spring group comprises a disc spring body one and a disc spring body two, the disc spring body one and the disc spring body two are both configured as conical disc plates, the large diameter end surfaces of the disc spring body one and the disc spring body two face each other, a compression spring is arranged between the disc spring body one and the disc spring body two, and a plurality of compression springs are arranged, and the plurality of compression springs are arranged in a ring along the circumference of the central column, an upper fixing seat is fixedly installed above the compression spring, and the upper fixing seat is fixedly connected to the disc spring body one, and a lower fixing seat is fixedly installed below the compression spring, and the lower fixing seat is fixedly connected to the disc spring body two.

[0007] Preferably, a telescopic rod is provided between the disc spring body 1 and the disc spring body 2 along the outer side of the compression spring, the telescopic rod comprises a sleeve and a straight rod, and the sleeve is movably sleeved above the outer side of the straight rod.

[0008] Preferably, an upper rod seat is fixedly installed above the telescopic rod, and the upper rod seat is fixedly connected to the disc spring body 1, and a lower rod seat is fixedly installed below the telescopic rod, and the lower rod seat is fixedly connected to the disc spring body 2.

[0009] Preferably, the inner sides of the disc spring body 1 and the disc spring body 2 are fixedly mounted with limiting members along the outer side of the telescopic rod, and the limiting members include a mounting seat, a boss and a rubber block.

[0010] Preferably, the mounting seat and the rubber block are fixedly mounted above and below the boss respectively, the mounting seat of the upper limit member is fixedly connected to disc spring body one, and the mounting seat of the lower limit member is fixedly connected to disc spring body two.

[0011] Preferably, a damping rod is provided inside the compression spring, the upper end of the damping rod is fixedly connected to the upper fixing seat, and the lower end of the damping rod is fixedly connected to the lower fixing seat.

[0012] Preferably, reinforcement rings are fixedly installed at the outer edges of the disc spring body 1 and the disc spring body 2.

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

[0014] The utility model sets a plurality of compression springs inside each butterfly spring group, and the plurality of compression springs are arranged in an annular manner along the circumference of the central column, so that when the butterfly spring bears a load for buffering, the compression spring is buffered first, and after the compression spring buffering is compressed to a certain size, the first butterfly spring body and the second butterfly spring body are in contact for buffering, so that during the butterfly spring buffering operation, the compression spring can be used for buffering when a small load is borne, and the compression spring and the butterfly spring body can be used for buffering together when a large load is borne, thereby being able to reduce the friction and wear between the butterfly spring bodies to a certain extent during the use of the butterfly spring, thereby increasing the service life of the butterfly spring, reducing the maintenance cost, and improving the practicality. The utility model sets a plurality of telescopic rods between the first butterfly spring body and the second butterfly spring body, and the telescopic rods include a sleeve and a straight rod, so that during the butterfly spring buffering operation, the straight rod in the telescopic rod slides in the sleeve, so that the elastic direction between different butterfly spring groups can be guided, thereby increasing the stability of the butterfly spring during operation. The utility model fixes and installs limiting members on the inner side of the disc spring body 1 and the disc spring body 2 along the outer side of the telescopic rod, so that the deformation of the disc spring body can be limited, and the disc spring is prevented from reaching the limit deformation, thereby increasing the practicality. The utility model fixes and installs reinforcing rings on the outer edges of the disc spring body 1 and the disc spring body 2, which can reduce the wear of the disc spring edge to a certain extent, increase the wear resistance of the disc spring, and improve the practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of a wear-resistant disc spring of the utility model;

[0016] Figure 2 It is a cross-sectional view of the disc spring body 1 and the disc spring body 2 of the utility model;

[0017] Figure 3 It is an enlarged schematic diagram of the A part of the utility model;

[0018] Figure 4 It is an enlarged schematic diagram of the B portion of the utility model.

[0019] In the figure: 1, center column; 2, disc spring body 1; 3, disc spring body 2; 4, upper fixing seat; 5, compression spring; 6, lower fixing seat; 7, upper rod seat; 8, telescopic rod; 9, lower rod seat; 10, limit piece; 1001, mounting seat; 1002, boss; 1003, rubber block; 11, reinforcement ring; 12, damping rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] See also Figure 1-4 , the utility model provides an embodiment: a wear-resistant disc spring, including a central column 1, a plurality of disc spring groups are sleeved on the outer side of the central column 1, and each disc spring group includes a disc spring body 2 and a disc spring body 2 3, the disc spring body 1 2 and the disc spring body 2 3 are both configured as conical disc plates, and the large diameter end surfaces of the disc spring body 1 2 and the disc spring body 2 3 face each other, in two adjacent disc spring groups, the disc spring body 2 3 of the upper disc spring group is fixedly connected with the disc spring body 1 2 of the lower disc spring group, a compression spring 5 is arranged between the disc spring body 1 2 and the disc spring body 2 3, and a plurality of compression springs 5 ​​are arranged, and the plurality of compression springs 5 ​​are arranged in an annular manner along the circumference of the central column 1, an upper fixing seat 4 is fixedly installed above the compression spring 5, and the upper fixing seat 4 is fixedly connected to the disc spring body 1 2, and a lower fixing seat 6 is fixedly installed below the compression spring 5, and the lower fixing seat 6 is fixedly connected to the disc spring body 2 3.

[0022] When in use, when the disc spring bears the load for buffering, the compression spring 5 buffers first. After the compression spring 5 is buffered and compressed to a certain size, the disc spring body 1 2 and the disc spring body 2 3 come into contact for buffering. In this way, during the buffering work of the disc spring, the compression spring 5 can be used for buffering when a smaller load is borne, and the compression spring 5 and the disc spring body can be used for buffering together when a larger load is borne, thereby reducing the frequent contact friction between the disc spring body 1 2 and the disc spring body 2 3 and increasing the service life of the disc spring.

[0023] Furthermore, a telescopic rod 8 is arranged between the disc spring body 1 2 and the disc spring body 2 3 along the outer side of the compression spring 5. The telescopic rod 8 includes a sleeve and a straight rod, and the sleeve is movably sleeved on the upper side of the outer side of the straight rod, so that during the buffering operation of the butterfly spring, the straight rod in the telescopic rod 8 slides in the sleeve, so that the elastic direction between different butterfly spring groups can be guided, thereby increasing the stability of the butterfly spring during operation.

[0024] Furthermore, an upper rod seat 7 is fixedly installed above the telescopic rod 8, and the upper rod seat 7 is fixedly connected to the disc spring body 2, and a lower rod seat 9 is fixedly installed below the telescopic rod 8, and the lower rod seat 9 is fixedly connected to the disc spring body 2 3, which increases the stability of the position of the telescopic rod 8.

[0025] Furthermore, the inner sides of the disc spring body 1 2 and the disc spring body 2 3 are fixedly installed with a limiting member 10 along the outer side of the telescopic rod 8, and the limiting member 10 includes a mounting seat 1001, a boss 1002 and a rubber block 1003, and the mounting seat 1001 and the rubber block 1003 are respectively fixedly installed above and below the boss 1002, and the mounting seat 1001 of the upper limiting member 10 is fixedly connected to the disc spring body 1 2, and the mounting seat 1001 of the lower limiting member 10 is fixedly connected to the disc spring body 2 3, so that the deformation of the disc spring body can be limited to prevent the disc spring from reaching the limit deformation.

[0026] Furthermore, a damping rod 12 is provided inside the compression spring 5, the upper end of the damping rod 12 is fixedly connected to the upper fixing seat 4, and the lower end of the damping rod 12 is fixedly connected to the lower fixing seat 6. Through the provided damping rod 12, the rebound force of the compression spring 5 during the elastic buffering process can be buffered and absorbed, thereby increasing the stability of the butterfly spring buffering work.

[0027] Furthermore, a reinforcement ring 11 is fixedly installed at the outer edge of the disc spring body 1 2 and the disc spring body 2 3. The reinforcement ring 11 is made of high-strength wear-resistant steel, which can reduce the wear of the edge of the disc spring to a certain extent and increase the wear resistance of the disc spring.

[0028] Working principle: When in use, when the disc spring is subjected to load for buffering, the sliding of the straight rod in the telescopic rod 8 in the sleeve can guide the elastic direction between different disc spring groups, and when the disc spring group is subjected to load, the compression spring 5 is first buffered. After the compression spring 5 is buffered and compressed to a certain size, the disc spring body 1 2 and the disc spring body 2 3 are contacted for buffering. In this way, during the buffering working process of the butterfly spring, the compression spring 5 can be used for buffering when a smaller load is borne, and the compression spring 5 and the butterfly spring body can be used for buffering together when a larger load is borne, thereby reducing the frequent contact friction between the disc spring body 1 2 and the disc spring body 2 3 and increasing the service life of the butterfly spring.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A wear-resistant disc spring, comprising a central column (1), characterized in that: The outer side of the central column (1) is sleeved with a plurality of disc spring groups, and each disc spring group comprises a disc spring body one (2) and a disc spring body two (3), the disc spring body one (2) and the disc spring body two (3) are both configured as conical disc plates, the large diameter end surfaces of the disc spring body one (2) and the disc spring body two (3) face each other, a compression spring (5) is arranged between the disc spring body one (2) and the disc spring body two (3), and a plurality of compression springs (5) are provided, and the plurality of compression springs (5) are arranged in an annular manner along the circumference of the central column (1), an upper fixing seat (4) is fixedly mounted above the compression spring (5), and the upper fixing seat (4) is fixedly connected to the disc spring body one (2), and a lower fixing seat (6) is fixedly mounted below the compression spring (5), and the lower fixing seat (6) is fixedly connected to the disc spring body two (3).

2. A wear-resistant disc spring according to claim 1, characterized in that: A telescopic rod (8) is arranged between the disc spring body 1 (2) and the disc spring body 2 (3) along the outer side of the compression spring (5), the telescopic rod (8) comprising a sleeve and a straight rod, and the sleeve is movably sleeved above the outer side of the straight rod.

3. A wear-resistant disc spring according to claim 2, characterized in that: An upper rod seat (7) is fixedly mounted above the telescopic rod (8), and the upper rod seat (7) is fixedly connected to the disc spring body 1 (2); a lower rod seat (9) is fixedly mounted below the telescopic rod (8), and the lower rod seat (9) is fixedly connected to the disc spring body 2 (3).

4. The wear-resistant disc spring according to claim 1, characterized in that: A limiting member (10) is fixedly mounted on the inner side of the disc spring body 1 (2) and the disc spring body 2 (3) along the outer side of the telescopic rod (8), and the limiting member (10) comprises a mounting seat (1001), a boss (1002) and a rubber block (1003).

5. The wear-resistant disc spring according to claim 4, characterized in that: The mounting seat (1001) and the rubber block (1003) are respectively fixedly mounted above and below the boss (1002); the mounting seat (1001) of the upper limiting member (10) is fixedly connected to the disc spring body 1 (2); and the mounting seat (1001) of the lower limiting member (10) is fixedly connected to the disc spring body 2 (3).

6. The wear-resistant disc spring according to claim 1, characterized in that: A damping rod (12) is arranged inside the compression spring (5), the upper end of the damping rod (12) is fixedly connected to the upper fixing seat (4), and the lower end of the damping rod (12) is fixedly connected to the lower fixing seat (6).

7. The wear-resistant disc spring according to claim 1, characterized in that: A reinforcement ring (11) is fixedly mounted on the outer edges of the disc spring body 1 (2) and the disc spring body 2 (3).

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