CN220600138U

CN220600138U - Combined hydraulic sealing element

Info

Publication number: CN220600138U
Application number: CN202322362794.3U
Authority: CN
Inventors: 胡波; 李恩义; 刘振学
Original assignee: Xuzhou Jinggong Seal Science & Technology Co ltd
Current assignee: Xuzhou Jinggong Seal Science & Technology Co ltd
Priority date: 2023-09-01
Filing date: 2023-09-01
Publication date: 2024-03-15
Anticipated expiration: 2033-09-01

Abstract

The utility model discloses a combined hydraulic sealing element, which relates to the technical field of hydraulic sealing elements and comprises a shaft body, a first limiting ring and a clamping ring, wherein a supporting component is arranged on one side, which is close to each other, of the symmetrical clamping ring, limiting plates are symmetrically arranged on one side, which is close to each other, of the symmetrical clamping ring, elastic rings are abutted against one side, which is close to each other, of the symmetrical limiting plates, chucks are arranged on two sides of the elastic rings, one side of each chuck is fixedly connected with the first limiting ring, an arc-shaped groove is formed in the inner wall of each limiting plate, two sides of each elastic ring are abutted against the corresponding limiting plate through the arc-shaped groove, the limiting plates are supported through supporting columns and supporting columns, so that the elastic rings are outwards extruded, the contact tightness between the elastic rings and the inner walls of a cylinder body is improved, after the elastic rings are aged, the elastic rings are provided with certain elasticity, the elastic rings are continuously attached to the inner walls of the cylinder body through springs inside the supporting columns, and the service lives of the elastic rings are prolonged.

Description

Combined hydraulic sealing element

Technical Field

The utility model relates to the technical field of hydraulic sealing elements, in particular to a combined hydraulic sealing element.

Background

Hydraulic seals are materials or parts of components that prevent leakage of fluid from between adjacent bonding surfaces and prevent intrusion of foreign objects such as dust and moisture into the interior of the machine. Although the hydraulic sealing element is small, the hydraulic sealing element has the function of becoming a basic part and an accessory in national economy main industries such as national defense, chemical industry, petroleum, coal, transportation, mechanical manufacturing and the like, and plays a quite important role in national economy development.

The utility model of publication No. CN217129985U discloses a combined hydraulic sealing piece which is sleeved in a groove of a shaft and comprises an annular elastic body, a first check ring arranged at one end of the axial direction of the elastic body, a second check ring arranged at the other end of the axial direction of the elastic body, a first guide piece arranged between the groove and the first check ring and a second guide piece arranged between the groove and the second check ring; the elastic body is provided with a first section parallel to the diameter, the first section is in a shape with a large middle and two small ends, the first check ring and the second check ring enclose to form an accommodating space for accommodating the elastic body, and the accommodating space is in a shape with a large middle and two small ends. The extrusion resistance of the elastomer can be greatly improved by the scheme.

In view of the above, the inventor considers that the current combined hydraulic sealing element improves the extrusion resistance of the elastic body through the first check ring and the second check ring, so as to prolong the service life of the sealing element, but as the elastic body is generally made of rubber materials, natural aging can occur in the long-time use process of the rubber, the elasticity of the elastic body is reduced, the sealing effect between the elastic body and the cylinder body is poor, the internal structure of the hydraulic machine is complex, the elastic body needs to be replaced by disassembling the hydraulic cylinder, the frequent disassembly can cause damage to the machine, and inconvenience exists in use.

Disclosure of Invention

The utility model aims to provide a combined hydraulic sealing element, which aims to effectively solve the problems that as an elastic body is generally made of rubber materials, natural aging occurs in the long-time use process of the rubber, the elasticity of the elastic body is reduced, the sealing effect between the elastic body and a cylinder body is poor, the internal structure of a hydraulic machine is complex, the elastic body needs to be replaced by disassembling the hydraulic cylinder, the machine is damaged due to frequent disassembly, and inconvenience exists in use.

In order to solve the problems, the utility model adopts the following technical scheme:

the utility model provides a combination formula hydraulic seal spare, includes the axis body, the outer wall surface fixedly connected with first spacing ring of axis body, the inner wall symmetry of first spacing ring is provided with the snap ring, the symmetry one side that the snap ring is close to each other is provided with supporting component, the symmetry one side symmetry that supporting component is close to each other is provided with the limiting plate, the symmetry one side butt that the limiting plate is close to each other has the elastic ring, the both sides of elastic ring are provided with the chuck, one side of chuck with first spacing ring fixed connection.

As a preferable scheme of the utility model, the inner wall of the limiting plate is provided with an arc groove, and two sides of the elastic ring are mutually abutted with the limiting plate through the arc groove.

As a preferable scheme of the utility model, one side, which is symmetrical to the clamping rings and is far away from each other, is fixedly connected with a limiting column, a plurality of limiting columns are annularly arranged, and one ends of the plurality of limiting columns are spliced with the first limiting rings.

As a preferable scheme of the utility model, the supporting component comprises a supporting column which is abutted with the clamping ring, wherein one side of the supporting column away from the clamping ring is fixedly connected with a supporting column, and one side of the supporting column away from the supporting column is abutted with the limiting plate.

As a preferable scheme of the utility model, the support column comprises a base fixedly connected with the clamping ring and the support column respectively, a telescopic rod is fixedly connected to the center of the base, a spring is sleeved on the surface of the telescopic rod, and two ends of the spring are mutually abutted with the base.

As a preferable scheme of the utility model, one side of the clamping ring is fixedly connected with a second limiting ring, the second limiting ring is sleeved on the surface of the supporting column, the surface of the supporting column is fixedly connected with a third limiting ring, one end of the third limiting ring is fixedly connected with a limiting clamping block, one end of the third limiting ring is in sliding connection with the supporting column, and the outer wall of the limiting clamping block is in sliding connection with the inner wall of the supporting column.

Compared with the prior art, the utility model has the advantages that:

1. the axis body is fixed first spacing ring, first spacing ring supports the elastic ring through symmetrical snap ring, supporting component, and limiting plate, the chuck is fixed in the inside of first spacing ring with the snap ring, the support column supports the pillar, the pillar carries out the butt to the limiting plate, increase the compactness that limiting plate is connected with inside elastic ring, spacing fixture block carries out the joint to third spacing ring and second spacing ring, the range of movement to pillar and limiting plate is spacing, make the symmetry limiting plate unfavorable open and shut too big, lead to the extrusion of elastic ring, increase the stability of elastic ring. The limiting plate is supported through the support column and the support column by means of the design, the elastic ring is extruded outwards, the contact tightness of the elastic ring and the inner wall of the cylinder body is increased, after the elastic ring is aged, the elastic ring has certain elasticity, the elastic ring inside the limiting plate is extruded continuously through the spring inside the support column, the elastic ring is attached to the inner wall of the cylinder body continuously, and the service life of the elastic ring is prolonged.

2. The support component includes the support column with snap ring butt, one side fixedly connected with pillar of snap ring is kept away from to the support column, one side and limiting plate butt of pillar, the support column supports the pillar, the pillar carries out the butt to the limiting plate, increase the compactness that limiting plate and inside elastic ring are connected, the support column includes the base with snap ring and pillar fixed connection respectively, the center department fixedly connected with telescopic link of base, the spring has been cup jointed on the surface of telescopic link, the both ends and the mutual butt of base of spring, the base supports the pillar through the spring, the pillar extrudes the limiting plate, make elastic ring outwards extrude, increase the laminating degree of elastic ring and cylinder body inner wall, the telescopic link inserts a thick pipe for a tubule and constitutes, because the elasticity of thick pipe and tubule, make the telescopic link increase the stability that the spring supported.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

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

FIG. 3 is a schematic diagram of the structure of the present utility model at A in FIG. 2;

fig. 4 is a schematic diagram of a snap ring structure according to the present utility model.

The reference numerals in the figures illustrate:

1. a shaft body; 2. a first stop collar; 3. an elastic ring; 4. a chuck; 5. a clasp; 51. a limit column; 6. a support assembly; 61. a support column; 611. a base; 612. a spring; 613. a telescopic rod; 62. a support post; 63. a second limiting ring; 64. a third limiting ring; 641. a limit clamping block; 7. a limiting plate; 71. an arc-shaped groove.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. It is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples:

referring to fig. 1-4, a combined hydraulic seal comprises a shaft body 1, a first limiting ring 2 is fixedly connected to the outer wall surface of the shaft body 1, a clamping ring 5 is symmetrically arranged on the inner wall of the first limiting ring 2, a telescopic rod 613 is fixedly connected to the center of the base 611, a spring 612 is sleeved on the surface of the telescopic rod 613, two ends of the spring 612 are mutually abutted to the base 611, the base 611 supports the supporting column 62 through the spring 612, the supporting column 61 is connected with a supporting column 61 in an abutting mode, one side, far away from the clamping ring 5, of the supporting column 61 is fixedly connected with a supporting column 62, one side, far away from the supporting column 61, of the supporting column 62 is abutted to the limiting plate 7, the supporting column 61 supports the supporting column 62, the supporting column 62 is abutted to the limiting plate 7, the supporting column 62 is increased, the supporting column 61 comprises a base 611 fixedly connected with the clamping ring 5 and the supporting column 62 respectively, a telescopic rod 613 is fixedly connected to the center of the base 611, the surface of the telescopic rod 613 is sleeved with a spring 612, two ends of the spring 612 are mutually abutted to the base 611, the supporting column 62 is supported by the spring 612, the supporting column 62 is pressed by the limiting plate 7, the supporting column 3 is extruded outwards, the telescopic rod 3 is pressed, the cylinder body is increased, the degree is attached to the inner wall is tightly by the telescopic rod 613, and the telescopic rod 613 is formed by a thick supporting tube, and the flexible pipe is formed by the flexible, and the flexible pipe is formed by a flexible, and the flexible pipe is due to the flexible.

Referring to fig. 1-3, a second limiting ring 63 is fixedly connected to one side of the snap ring 5, the second limiting ring 63 is sleeved on the surface of the support column 61, a third limiting ring 64 is fixedly connected to the surface of the support column 62, one end of the third limiting ring 64 is fixedly connected with a limiting clamping block 641, one end of the third limiting ring 64 is slidably inserted into the support column 61, the outer wall of the limiting clamping block 641 is slidably clamped with the inner wall of the support column 61, the third limiting ring 64 increases the stability of the connection structure of the support column 62 and the limiting plate 7, the third limiting ring 64 is slidably connected to the inside of the second limiting ring 63, the stability of the sliding of the support column 62 is increased, the limiting clamping block 641 clamps the third limiting ring 64 and the second limiting ring 63, the moving range of the support column 62 and the limiting plate 7 is limited, the symmetrical limiting plate 7 is not suitable to be opened or closed, extrusion of the elastic ring 3 is caused, and the stability of the elastic ring 3 is increased.

Referring to fig. 2-4, an elastic ring 3 is abutted to one side of the symmetrical limiting plate 7, chucks 4 are arranged on two sides of the elastic ring 3, one side of each chuck 4 is fixedly connected with the first limiting ring 2, an arc groove 71 is formed in the inner wall of the limiting plate 7, two sides of the elastic ring 3 are abutted to the limiting plate 7 through the arc groove 71, the cross section of the elastic ring 3 is in a water drop shape, the outer wall of the elastic ring 3 is abutted to the arc groove 71 in the limiting plate 7, the stability of the elastic ring 3 is improved, the connection tightness between the elastic ring 3 and the first limiting ring 2 is improved, the elastic ring 3 is not easy to extrude, limiting columns 51 are fixedly connected to one side of the symmetrical clamping ring 5, which is far away from each other, a plurality of limiting columns 51 are annularly arranged, one ends of the plurality of limiting columns 51 are spliced with the first limiting ring 2, one side of the limiting columns 51 are uniformly distributed with the clamping ring 5, and the stability of the connecting structure of the clamping ring 5 is improved through the limiting columns 51, so that the clamping ring 5 cannot rotate in the first limiting ring 2.

Working principle:

according to the utility model, when the shaft body 1 is used, the first limiting ring 2 is used for fixing the first limiting ring 2, the first limiting ring 2 is used for supporting the elastic ring 3 through the symmetrical clamping ring 5, the supporting component 6 and the limiting plate 7, the clamping ring 5 is fixed in the first limiting ring 2 by the chuck 4, the supporting column 61 is used for supporting the supporting column 62, the supporting column 62 is used for abutting the limiting plate 7, the connection tightness of the limiting plate 7 and the inner elastic ring 3 is increased, the limiting clamping block 641 is used for clamping the third limiting ring 64 and the second limiting ring 63, the moving range of the supporting column 62 and the limiting plate 7 is limited, the symmetrical limiting plate 7 is not suitable for being opened and closed too much, the elastic ring 3 is extruded, and the stability of the elastic ring 3 is increased. The limiting plate 7 is supported through the support columns 61 and the support columns 62 by means of the design, the elastic ring 3 is extruded outwards, the contact tightness between the elastic ring 3 and the inner wall of the cylinder body is improved, after the elastic ring 3 is aged, the elastic ring 3 has certain elasticity, the elastic ring 3 in the limiting plate 7 is continuously extruded through the springs 612 in the support columns 61, the elastic ring 3 is continuously attached to the inner wall of the cylinder body, and the service life of the elastic ring 3 is prolonged.

The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the improved concept thereof, can be equivalently replaced or changed within the scope of the present utility model.

Claims

1. A combination hydraulic seal, comprising:

the shaft body (1), the outer wall surface fixedly connected with first spacing ring (2) of shaft body (1), the inner wall symmetry of first spacing ring (2) is provided with snap ring (5), and the symmetry one side that snap ring (5) are close to each other is provided with supporting component (6), and the symmetry supporting component (6) one side symmetry that is close to each other is provided with limiting plate (7), and the symmetry one side butt that limiting plate (7) are close to each other has elastic ring (3), the both sides of elastic ring (3) are provided with chuck (4), one side of chuck (4) with first spacing ring (2) fixed connection.

2. A combination hydraulic seal as defined in claim 1, wherein: an arc groove (71) is formed in the inner wall of the limiting plate (7), and two sides of the elastic ring (3) are mutually abutted with the limiting plate (7) through the arc groove (71).

3. A combination hydraulic seal as defined in claim 1, wherein: one side of the clamping ring (5) which is mutually far away is fixedly connected with a limiting column (51), a plurality of limiting columns (51) are annularly arranged, and one ends of the limiting columns (51) are spliced with the first limiting ring (2).

4. A combination hydraulic seal according to claim 3, wherein: the support assembly (6) comprises a support column (61) abutted with the clamping ring (5), one side, away from the clamping ring (5), of the support column (61) is fixedly connected with a support column (62), and one side, away from the support column (61), of the support column (62) is abutted with the limiting plate (7).

5. A combination hydraulic seal as defined in claim 4, wherein: the support column (61) comprises bases (611) which are respectively fixedly connected with the clamping rings (5) and the support columns (62), telescopic rods (613) are fixedly connected to the centers of the bases (611), springs (612) are sleeved on the surfaces of the telescopic rods (613), and two ends of the springs (612) are mutually abutted to the bases (611).

6. A combination hydraulic seal as defined in claim 5, wherein: one side fixedly connected with second spacing ring (63) of snap ring (5), second spacing ring (63) cup joint in the surface of support column (61), the fixed surface of pillar (62) is connected with third spacing ring (64), the one end fixedly connected with spacing fixture block (641) of third spacing ring (64), the one end of third spacing ring (64) with support column (61) slip grafting, the outer wall of spacing fixture block (641) with the inner wall slip joint of support column (61).