CN215522842U

CN215522842U - Water seal with self-lubricating function

Info

Publication number: CN215522842U
Application number: CN202121779556.7U
Authority: CN
Inventors: 龚俊程
Original assignee: Changzhou Wujin Hongcheng Auto Parts Co ltd
Current assignee: Changzhou Wujin Hongcheng Auto Parts Co ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-01-14
Anticipated expiration: 2031-08-02

Abstract

The utility model provides a water seal with a self-lubricating function, which comprises: the lubricating part is sleeved at one end of the moving shaft, and the sealing cover is arranged at the top of the moving shaft; when the oil supplying device is used, the moving shaft rotates and supplies oil to the lubricating part along with the rotation; according to the utility model, the bearing shaft sleeve is arranged on the fixed shaft, the hemispherical convex block extrudes the steel ball by the rotation of the connecting ring follow-up shaft, the bearing spring enables compressed gas of the arc-shaped air bag to be filled into the annular air bag from the discharge pipe, the annular air bag further extrudes the oil storage cotton, and the internal lubricating oil acts on the rotating moving shaft through the conical discharge hole, so that the self-lubricating effect is realized, the dry grinding phenomenon is avoided, and the aging speed is effectively delayed.

Description

Water seal with self-lubricating function

Technical Field

The utility model relates to the technical field of water seals, in particular to a water seal with a self-lubricating function.

Background

The mechanical water seal is a shaft seal device of rotary machinery, such as a centrifugal pump, a centrifuge, a reaction kettle, a compressor and other equipment, and a transmission shaft penetrates through the inside and the outside of the equipment, so that a circumferential gap exists between the shaft and the equipment, a medium in the equipment leaks outwards through the gap, and if the pressure in the equipment is lower than the atmospheric pressure, air leaks inwards the equipment, so that a shaft seal device for preventing leakage is required; frequent addition of lubricant is needed to avoid mutual abrasion in the using process, which brings great trouble to people

Therefore, under certain circumstances, a water seal with a self-lubricating function is required to replace the water seal.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: when in use, lubricating oil is not supplied timely and is easy to wear, and the problem in the prior art is solved. The utility model provides a water seal with a self-lubricating function to solve the problems.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a water seal with self-lubricating function comprises: the lubricating part is sleeved at one end of the moving shaft, and the sealing cover is arranged at the top of the moving shaft; wherein

When the oil supplying device is used, the moving shaft rotates and supplies oil to the lubricating part along with the rotation of the lubricating part.

Furthermore, the lubricating part comprises a bearing shaft sleeve, a compression assembly and an oil supplementing assembly are fixed inside the bearing shaft sleeve, and a pressing assembly is fixed on the movable shaft corresponding to the compression assembly; and

the bearing shaft sleeve is hollow, and the inner wall of the bearing shaft sleeve corresponds to the abutting-against component and is provided with a ring groove.

Furthermore, the pressing component comprises a link ring, and a hemispherical convex block is fixed on the outer wall of the link ring; and

the linkage ring is fixed on the surface of the moving shaft, and the diameter of the hemispherical convex block is equal to the height of a ring groove formed in the inner wall of the bearing shaft sleeve.

Further, the compression assembly comprises an inner ring, and an arc-shaped air bag is arranged inside the inner ring; and

the inner ring is fixedly fixed in the bearing shaft sleeve corresponding to the linkage ring, one side of the arc-shaped air bag is tightly attached to the inner wall of the inner ring, and a movable hole is formed in one side of the inner ring, which is far away from the outer diameter of the bearing shaft sleeve.

Furthermore, a bearing spring is arranged on one side of the arc-shaped air bag, and a steel ball is fixed at the other end of the spring;

the diameter of the steel ball is larger than that of the movable hole; and one end of the steel ball extends out of the movable hole under the supporting spring.

Further, the oil supplementing assembly comprises an inner ring, and an annular air bag is arranged above the inner part below the inner ring; and

the annular air bag is communicated with the arc-shaped air bag through an air pipe, and the arc-shaped air bag is compressed to enable the inflation volume of the annular air bag to be increased.

Further, oil storage cotton is arranged below the inner ring; and

the arc-shaped air bag is compressed to enable the inflation volume of the annular air bag to be increased so as to compress the oil storage cotton.

Furthermore, an annular baffle is arranged at the position, connected with the movable shaft, below the inner ring on one side of the oil storage cotton, and conical row holes are uniformly formed in the annular baffle;

when the oil storage cotton is compressed, internal lubricating oil acts on the surface of the rotating moving shaft from the conical row holes.

According to the utility model, the bearing shaft sleeve is arranged on the fixed shaft, the hemispherical convex block extrudes the steel ball by the rotation of the connecting ring follow-up shaft, the bearing spring enables compressed gas of the arc-shaped air bag to be filled into the annular air bag from the discharge pipe, the annular air bag further extrudes the oil storage cotton, and the internal lubricating oil acts on the rotating moving shaft through the conical discharge hole, so that the self-lubricating effect is realized, the dry grinding phenomenon is avoided, and the aging speed is effectively delayed.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a perspective view of a preferred embodiment of a water seal with self-lubricating function according to the present invention;

FIG. 2 is a perspective cross-sectional view of a preferred embodiment of the lubrication portion of the present invention;

FIG. 3 is an enlarged view of the structure of FIG. 2 at A according to the present invention;

fig. 4 is an enlarged view of the structure of fig. 2B according to the present invention.

In the drawings

4. A sealing cover; 5. a moving shaft; 6. a lubricating section;

61. a bearing shaft sleeve; 62. a pressing component; 63. a compression assembly; 64. an oil supplementing assembly;

621. a link ring; 622. a hemispherical bump;

631. on the inner ring; 632. supporting the spring; 633. steel balls; 634. an arc-shaped air bag;

641. the inner ring is arranged below; 642. an annular air bag; 643. oil storage cotton; 644. an annular baffle; 645. and (5) conical holes.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. On the contrary, the embodiments of the utility model include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.

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 invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Referring to fig. 1, fig. 1 is a perspective view of a water seal with self-lubricating function according to a preferred embodiment of the present invention; referring to fig. 2, fig. 2 is a perspective cross-sectional view of a preferred embodiment of the lubrication portion of the present invention; referring to fig. 3, fig. 3 is an enlarged schematic view of a portion a in fig. 2 according to the present invention; referring to fig. 4, fig. 4 is an enlarged schematic view of a portion B in fig. 2 according to the present invention; as shown in fig. 1 to 4, the present invention provides a water seal with self-lubricating function, comprising: a seal cover 4, a moving shaft 5 and a lubricating part 6; the sealing cover 4 is used for protecting, the moving shaft 5 rotates in the water seal whole body, and the lubricating portion 6 is mainly used for avoiding surface abrasion of the rotating moving shaft 5. With respect to the above components, detailed description is given below.

Lubrication part

The lubricating part 6 is sleeved on the surface of the moving shaft 5, the outer contour of the lubricating part 6 is annular, and the lubricating part is used for automatically supplementing oil to the moving shaft 5 in the continuous rotating process of the moving shaft 5, so that the abrasion between the moving shaft 5 and an external connecting piece is reduced, and the aging speed of the moving shaft 5 is effectively delayed.

The following describes the composition structure of the lubricating portion 6 in detail, the lubricating portion 6 includes a bearing sleeve 61, in order to achieve the effect of automatic oil supply on the surface of the moving shaft, a compression assembly 63 and an oil supply assembly 64 are fixed inside the bearing sleeve 61, in order to enable the oil supply assembly to continuously discharge oil to act on the moving shaft, a pressing assembly 62 is fixed on the moving shaft 5 corresponding to the compression assembly 63; and the bearing shaft sleeve 61 is hollow, and the inner wall of the bearing shaft sleeve 61 is provided with a ring groove corresponding to the abutting component 62.

When the moving shaft 5 rotates, the compression assembly 63 is extruded through the abutting assembly 62 to enable lubricating oil inside the oil supplementing assembly 64 to be uniformly applied to the surface of the moving shaft 5, so that the self-lubricating effect is realized, the dry grinding phenomenon is avoided, and the aging speed is effectively delayed.

Abutting assembly

The pressing component 62 is fixed on the surface of the moving shaft and arranged inside the bearing shaft sleeve 61, the pressing component 62 rotates along with the shaft 5, and the drum extrudes the primary compression component 63 for one circle while rotating.

The composition structure of the pressing component 62 is described in detail below, where the pressing component 62 includes a link ring 621, and a hemispherical protrusion 622 is fixed on the outer wall of the link ring 621; and the link ring 621 is fixed on the surface of the moving shaft 5, and the diameter of the hemispherical convex block 622 is equal to the height of the ring groove formed on the inner wall of the bearing shaft sleeve 61. During the rotation of the follower shaft 5, the link ring 621 drives the hemispherical protrusions 622 to press the compression assembly 63.

Compression assembly

The compressing assembly 63 is disposed above the inner cavity of the bearing sleeve 61, and the width of the compressing assembly 63 and the width of the linking ring 621 when the hemisphere protruding block 622 contacts with the linking ring are integrally consistent with the width of the inner cavity of the bearing sleeve 61 in a natural state.

The following describes the composition of the compressing assembly 63 in detail, wherein the compressing assembly 63 includes an inner ring 631, an arc-shaped air bag 634 is disposed inside the inner ring 631, a supporting spring 632 is disposed on one side of the arc-shaped air bag 634, and a steel ball 633 is fixed to the other end of the supporting spring 632 in order to make the hemispherical convex block 622 rotate to a certain position and have a force for compressing the supporting spring 632; the inner ring 631 is fixed in the bearing sleeve 61 corresponding to the link ring 621, one side of the arc-shaped air bag 634 clings to the inner wall of the inner ring 631, one side of the inner ring 631, which is far away from the outer diameter of the bearing sleeve 61, is provided with a movable hole, and the diameter of the steel ball 633 is larger than that of the movable hole; and one end of the steel ball 633 extends out of the movable hole under the support of the support spring 632.

When the rotating shaft 5 rotates continuously, the linking ring 621 drives the hemispherical protrusion 622 to extrude the steel ball 633 once every rotation, the steel ball compresses the supporting spring 632 to extrude the arc-shaped air bag 634 after being extruded, and the gas inside the arc-shaped air bag is transmitted into the oil replenishing assembly 64.

Oil supplementing assembly

The oil supplementing assembly 64 is arranged below the inner cavity of the bearing shaft sleeve 61, the width of the oil supplementing assembly 64 is matched with that of the inner cavity of the bearing shaft sleeve 61, the outer wall of the inner diameter of the oil supplementing assembly 64 is in contact with the surface of the moving shaft, and when lubricating oil is discharged, the lubricating oil uniformly acts on the surface of the lubricating shaft, so that abrasion is reduced.

The following describes the composition structure of the oil compensating assembly 64 in detail, where the oil compensating assembly 64 includes an inner ring lower 641, an annular air bag 642 is disposed above the inner part of the inner ring lower 641, and an oil storing cotton 643 is disposed below the inner ring lower 641; and the annular air bag 642 is communicated with the arc-shaped air bag 634 through an air pipe, the arc-shaped air bag 634 is compressed to make the inflation volume of the annular air bag 642 larger so as to compress the oil storage cotton 643; an annular baffle 644 is arranged at the connecting position of the inner ring lower 641 on one side of the oil storage cotton 643 and the moving shaft 5, and in order to avoid waste caused by excessive outflow of lubricating oil, conical discharge holes 645 are uniformly formed in the annular baffle 644; the inner lubrication oil acts on the surface of the moving shaft 5 in rotation from the tapered row holes 645 when the oil reservoir cotton 643 is compressed.

After the moving shaft 5 rotates to extrude the arc-shaped air bag 634, air enters the annular air bag 642 through the exhaust pipe, the whole volume of the interior paint is increased, and then the effect of extruding the oil storage cotton 643 can be achieved, the gap of the extruded oil storage cotton 643 is reduced, lubricating oil can be discharged, and redundant lubricating oil can flow through the tapered discharge holes 645 to the surface of the moving shaft 5.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, a schematic representation of the term does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A water seal with self-lubricating function, characterized by comprising: the lubricating device comprises a sealing cover (4), a moving shaft (5) and a lubricating part (6), wherein the lubricating part (6) is sleeved at one end of the moving shaft (5), and the sealing cover (4) is arranged at the top of the moving shaft (5); wherein

When in use, the moving shaft (5) rotates and supplies oil to the lubricating part (6) along with the rotation.

2. The water seal with self-lubricating function according to claim 1, wherein the lubricating portion (6) comprises a bearing sleeve (61), a compression assembly (63) and an oil-supplementing assembly (64) are fixed inside the bearing sleeve (61), and a pressing assembly (62) is fixed on the moving shaft (5) corresponding to the compression assembly (63); and

bear axle sleeve (61) inside and be cavity, just bear axle sleeve (61) inner wall and correspond it has seted up the annular to support to press subassembly (62).

3. The water seal with self-lubricating function according to claim 2, wherein the pressing component (62) comprises a link ring (621), and a semispherical projection (622) is fixed on the outer wall of the link ring (621); and

the linkage ring (621) is fixed on the surface of the moving shaft (5), and the diameter of the hemispherical convex block (622) is equal to the height of a ring groove formed in the inner wall of the bearing shaft sleeve (61).

4. A water seal with self-lubricating function according to claim 3, characterised in that said compression assembly (63) comprises an inner ring (631), the inner part of said inner ring (631) being provided with an arc-shaped air bag (634); and

the inner ring (631) is fixed and corresponds to the linkage ring (621) and is fixed in the bearing shaft sleeve (61), one side of the arc-shaped air bag (634) is tightly attached to the inner wall of the inner ring (631), and a movable hole is formed in one side of the inner ring (631) far away from the outer diameter of the bearing shaft sleeve (61).

5. The water seal with self-lubricating function according to claim 4, characterized in that one side of the arc-shaped air bag (634) is provided with a supporting spring (632), and the other end of the spring is fixed with a steel ball (633);

the diameter of the steel ball (633) is larger than that of the movable hole; and one end of the steel ball (633) extends out of the movable hole under the support of the support spring (632).

6. Water seal with self-lubricating function according to claim 5, characterised in that the oil-supplementing assembly (64) comprises an inner lower ring (641), and an annular air bag (642) is arranged above the inside of the inner lower ring (641); and

the annular air bag (642) is communicated with the arc-shaped air bag (634) through an air pipe, and the arc-shaped air bag (634) is compressed to enable the inflated volume of the annular air bag (642) to be increased.

7. The water seal with self-lubricating function according to claim 6, characterized in that an oil storage cotton (643) is arranged below the inner ring lower part (641); and

the arc-shaped air bag (634) is compressed to enable the inflating volume of the annular air bag (642) to be larger so as to compress the oil storage cotton (643).

8. The water seal with the self-lubricating function according to claim 7, wherein an annular baffle (644) is arranged at a connecting position of the inner ring lower part (641) on one side of the oil storage cotton (643) and the moving shaft (5), and conical discharge holes (645) are uniformly formed in the annular baffle (644);

internal lubrication oil acts on the surface of the moving shaft (5) in rotation from the tapered row holes (645) when the oil reservoir cotton (643) is compressed.