CN219937557U

CN219937557U - Heavy-current liquid slip ring

Info

Publication number: CN219937557U
Application number: CN202321725682.3U
Authority: CN
Inventors: 孔利振
Original assignee: Yueqing Weiming Machinery Co ltd
Current assignee: Yueqing Weiming Machinery Co ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2023-10-31
Anticipated expiration: 2033-06-30

Abstract

The utility model provides a heavy current liquid sliding ring, includes the conducting wheel, the conducting wheel endotheca is equipped with the main shaft, main shaft both ends symmetry is equipped with bearing cap, bearing and seal structure, still including the cover of locating bearing cap, bearing and seal structure outside, seal structure includes the sealing block, be equipped with on the sealing block with main shaft butt first sealing member and with a plurality of second sealing member of cover butt, first sealing member is coaxial sealing washer, improves traditional rubber O type circle or oil blanket for the coaxial sealing washer of setting on the sealing block, can not influence main shaft rotation and keep the leakproofness to the sealing block is the metalwork has sufficient intensity, and the rotation of main shaft can not influence and make the sealing block produce the removal, under the extrusion of cover, the structure of installation first sealing member and second sealing member is more stable in the sealing block, can not produce and remove or deformation, can carry out stable long-time seal, has greatly improved the life of liquid sliding ring, reduction in production manufacturing cost.

Description

Heavy-current liquid slip ring

Technical Field

The utility model relates to a high-current liquid slip ring, and belongs to the field of conductive slip rings.

Background

The liquid slip ring is also called a collector ring or a rotary connector, and is a precise power transmission device for transmitting images, data signals and power of two relative rotating mechanisms. Is particularly suitable for continuous rotation without limitation, and places where power or data is required to be transmitted from a fixed position to a rotating position. In the current use environment of heavy current, the life-span of liquid sliding ring is usually about three months, needs often to change, and the main reason is because seal structure's quick loss, traditional seal structure is sealed through rubber seal usually, and wearing and tearing lead to leaking in long-time use easily, consequently makes liquid sliding ring life-span shorten and need frequent change, has the problem that manufacturing cost increases.

Disclosure of Invention

The utility model aims to overcome the defects and shortcomings of the prior art and provides a high-current liquid slip ring.

Further, the coaxial sealing ring is a rotary glain ring or a stoneley ring or an O-shaped ring, or is other types of coaxial sealing rings.

Preferably, the second sealing element is an O-ring, the coaxial sealing ring is formed by combining a material with good lubricating property, small friction coefficient and good wear resistance and a rubber sealing ring serving as an elastomer, the sealing can be performed while the rotation of the main shaft is not affected, and the friction force between the second sealing element and the insert sleeve can help the sealing block to fix, so that displacement is not generated, and the stability is further improved.

Further, a first sealing groove with an opening facing the main shaft and a second sealing groove with an opening facing the insert sleeve are arranged on the sealing block, the first sealing piece is installed in the first sealing groove, and the second sealing piece is installed in the second sealing groove.

Preferably, the number of the second sealing elements is at least two, the second sealing elements can be sealed through abutting with the insert sleeve, the number of the second sealing elements can be adjusted, and the flexibility of the sealing structure is improved.

Further, the first ladder groove and the second ladder groove are formed in two ends of the insert sleeve, the first ladder groove is clamped with the sealing block, the second ladder groove is clamped with the conductive wheel, and the insert sleeve is firmly installed in the conductive wheel through the two ladder grooves and cannot move easily.

Preferably, a retainer ring groove is formed in the inner wall of the insert sleeve, and a spring retainer ring positioned above the bearing cover is clamped in the retainer ring groove and used for fixing the bearing cover.

Further, the spindle is sleeved with a third sealing ring above the bearing cover, the third sealing member is an end face sealing member, and the VA/VD water seal is used for preventing external dust and liquid from entering the slip ring.

Preferably, a sealing cavity for containing the conductive medium is formed between the sealing structure and the main shaft and between the sealing structure and the inlay sleeve.

The beneficial effects of the utility model are as follows: the novel sealing device has the advantages that the traditional rubber O-shaped ring or the oil seal is improved to be the coaxial sealing ring arranged on the sealing block, the main shaft rotation is not influenced, the sealing block is kept airtight, the sealing block has enough strength for a metal piece, the main shaft rotation does not influence the movement of the sealing block, the structure of the first sealing piece and the second sealing piece arranged in the sealing block is more stable under the extrusion fixation of the embedding sleeve, the movement or deformation is not generated, the stable long-time sealing can be performed, the service life of the liquid slip ring is greatly prolonged, and the production and manufacturing cost is reduced.

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 diagram of the main structure of the present utility model;

FIG. 2 is an enlarged detail view at A in FIG. 1;

in the figure, 1, a conductive wheel; 2. a main shaft; 3. a bearing cap; 4. a bearing; 5. a sealing structure; 51. a sealing block; 511. a first seal groove; 512. a first seal; 513. a second seal groove; 514. a second seal; 6. embedding; 61. a first stepped groove; 62. a second stepped groove; 63. a retainer ring groove; 64. a spring retainer ring; 65. a third seal; 7. sealing the cavity.

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. 1-2, an embodiment of a high-current liquid slip ring according to the present utility model includes a conductive wheel 1, a main shaft 2 is sleeved in the conductive wheel 1, bearing covers 3, bearings 4 and a sealing structure 5 are symmetrically arranged at two ends of the main shaft 2, and a sleeve 6 is sleeved outside the bearing covers 3, bearings 4 and sealing structure 5, the sealing structure 5 includes a sealing block 51, a first sealing element 512 abutting against the main shaft 2 and a plurality of second sealing elements 514 abutting against the sleeve 6 are arranged on the sealing block 51, the first sealing element 512 is a coaxial sealing ring, a conventional rubber O-ring or an oil seal is improved to be a coaxial sealing ring arranged on the sealing block 51, the rotation of the main shaft 2 is not affected, the sealing block 51 is made of a metal piece with enough strength, the rotation of the main shaft 2 does not affect the movement of the sealing block 51, the structure of installing the first sealing element 512 and the second sealing element 514 in the sealing block 51 is more stable under the extrusion fixing of the sleeve 6, the movement or deformation is not generated, the stable long-time sealing can be performed, the slip ring is greatly improved, the service life of the liquid is greatly reduced, and the manufacturing cost is greatly reduced.

The coaxial seal ring is a rotary glai ring, a stell ring or an O-shaped ring, or other types of coaxial seal rings, and is formed by combining a material with good lubricating performance, small friction coefficient and good wear resistance and a rubber seal ring serving as an elastomer, so that the coaxial seal ring can seal without affecting the rotation of the main shaft 22. The second sealing element 514 is an O-ring, and is made of a rubber sealing ring or other materials, so that the normal sealing performance can be maintained, abrasion is avoided, the second sealing element is easy to obtain, and the production cost is reduced.

The seal block 51 is provided with a first seal groove 511 opening toward the main shaft 2 and a second seal groove 513 opening toward the insert 6, the first seal 512 being mounted in the first seal groove 511, and the second seal 514 being mounted in the second seal groove 513. The quantity of second sealing member 514 is two at least, can seal through the butt with inlay 6, and the quantity of second sealing member 514 can be adjusted, increases seal structure 5's flexibility, and the frictional force between second sealing member 514 and the inlay 6 can help sealing block 51 to fix, can not produce the displacement, further improves stability.

The two ends of the insert 6 are provided with a first step groove 61 and a second step groove 62, the first step groove 61 is clamped with the sealing block 51, the second step groove 62 is clamped with the conductive wheel 1, and the two step grooves enable the insert 6 to be firmly installed in the conductive wheel 1 and cannot easily move. The inner wall of the insert sleeve 6 is provided with a retainer ring groove 63, and a spring retainer ring 64 positioned above the bearing cover 3 is clamped in the retainer ring groove 63 and used for fixing the bearing cover 3. The third sealing ring above the bearing cover 3 is sleeved outside the main shaft 2, the third sealing member 65 is an end face sealing member, and the VA/VD water seal is used for preventing external dust and liquid from entering the slip ring.

A sealing cavity 7 for containing a conductive medium is formed between the sealing structure 5 and the main shaft 2 and the inlay sleeve 6, and the conductive medium is poured into the sealing cavity 7.

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.

While the utility model has been described with reference to several particular embodiments, it should be understood that the utility model is not limited to the particular embodiments disclosed. The utility model is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. The utility model provides a heavy current liquid sliding ring, includes the conducting wheel, the conducting wheel endotheca is equipped with the main shaft, main shaft both ends symmetry is equipped with bearing cap, bearing and seal structure, its characterized in that: the novel sealing structure comprises a bearing cover, a bearing and a sealing structure, wherein the bearing cover is sleeved with the bearing, the bearing and the sealing structure are sleeved with the sealing structure, the sealing structure comprises a sealing block, a first sealing piece abutted to a main shaft and a plurality of second sealing pieces abutted to the bearing are arranged on the sealing block, and the first sealing piece is a coaxial sealing ring.

2. The high current liquid slip ring of claim 1 wherein: the coaxial sealing ring is a rotary Gelai ring or a Style seal or an O-shaped ring.

3. The high current liquid slip ring of claim 1 wherein: the second seal is an O-ring.

4. The high current liquid slip ring of claim 1 wherein: the first sealing groove with the opening facing the main shaft and the second sealing groove with the opening facing the insert sleeve are arranged in the first sealing groove, and the second sealing piece is arranged in the second sealing groove.

5. High current liquid slip ring according to claim 1 or 2 or 4, characterized in that: the number of the second sealing elements is at least two.

6. The high current liquid slip ring of claim 1 wherein: the first ladder groove is connected with the sealing block in a clamping mode, and the second ladder groove is connected with the conductive wheel in a clamping mode.

7. The high current liquid slip ring of claim 6 wherein: the inner wall of the insert sleeve is provided with a check ring groove, and a spring check ring positioned above the bearing cover is clamped in the check ring groove.

8. The high current liquid slip ring of claim 1 wherein: and a third sealing ring positioned above the bearing cover is sleeved outside the main shaft.

9. The high current liquid slip ring of claim 1 wherein: and a sealing cavity for containing conductive media is formed between the sealing structure and the main shaft and between the sealing structure and the insert sleeve.