CN211501975U

CN211501975U - Low-abrasion rotary compensator

Info

Publication number: CN211501975U
Application number: CN201922286143.4U
Authority: CN
Inventors: 卢树军; 李春梅
Original assignee: Jiangsu Star Anticorrosion Technology Co ltd
Current assignee: Jiangsu Star Anticorrosion Technology Co ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-09-15
Anticipated expiration: 2029-12-18

Abstract

The utility model discloses a low wearing and tearing rotary compensator, including outer tube and inner tube, the outer tube is intraductal to be inserted there is the transition cover, and the transition cover overlaps on the inner tube, outer tube one side cover is kept away from to the inner tube has the gland, and gland, outer tube and transition cover pass through bolt fixed connection, be equipped with the lantern ring in the clearance that transition cover and inner tube formed, and the lantern ring is fixed in on the transition cover endotheca wall, the clearance intussuseption that transition cover and inner tube formed is filled with graphite packing, the utility model discloses an establish the transition cover between inner tube and outer tube, through establishing on the gland is fixed in the outer tube with the transition cover, transition pipe card is on the inner tube, and its inner and outer pipe face all rotates along the transition pipe when the inner tube rotates, avoids wearing and tearing to the outer tube, and the.

Description

Low-abrasion rotary compensator

Technical Field

The utility model relates to an expansion joint technical field specifically is a low wearing and tearing rotary compensator.

Background

The expansion joint is a flexible structure arranged on a container shell or a pipeline for compensating additional stress caused by temperature difference and mechanical vibration, the structure of the rotary compensator generally comprises an outer cylinder and an inner cylinder, one end of the inner cylinder extends into the outer cylinder, a sealing filler is arranged between the outer cylinder and the inner cylinder, two sides of the sealing filler are clamped to enable the sealing filler to generate radial expansion, the position of the sealing filler relative to the outer cylinder is fixed, the inner cylinder and the outer cylinder can rotate relative to each other, and friction is generated between the inner cylinder and the sealing filler when the inner cylinder rotates, so that the sealing filler is abraded, and the sealing performance is reduced; in addition, enough pretightening force needs to be applied to clamp the sealing filler, so that the friction force between the sealing filler and the outer cylinder and the inner cylinder is in a maximum state, the rotation between the outer cylinder and the inner cylinder is not flexible, and the sealing filler is easy to wear.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a low wearing and tearing rotary compensator to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a low wearing and tearing rotary compensator, includes outer tube and inner tube, the outer tube intubate has the transition cover, and the transition overlaps on the inner tube, the inner tube is kept away from outer tube one side cover and is had the gland, and gland, outer tube and transition cover pass through bolt fixed connection, be equipped with the lantern ring in the clearance that transition cover and inner tube formed, and the lantern ring is fixed in on the inner jacket wall of transition cover, the clearance intussuseption that transition cover and inner tube formed is filled with graphite packing.

Preferably, a sealing ring is installed at a joint where the outer pipe and the transition sleeve are attached.

Preferably, an inner ring is fixedly mounted on the inner pipe wall of the inner pipe, and the inner ring abuts against the sleeve wall of the port of the transition sleeve.

Preferably, a first sliding steel ball is arranged at a gap formed by the inner pipe, the transition sleeve and the inner ring.

Preferably, a second sliding steel ball is arranged at a gap formed by the transition sleeve, the lantern ring and the inner pipe.

Preferably, the same limiting sleeve is sleeved at the joint end of the outer pipe, the transition sleeve and the inner pipe.

Compared with the prior art, the beneficial effects of the utility model are that: through establishing the transition cover between inner tube and outer tube, through establishing on the gland will pass through the cover is fixed in the outer tube, pass through the pipe card on the inner tube, the inner tube when rotating its inside and outside pipe surface all rotates along the transition pipe, avoids wearing and tearing to the outer tube, and the inside and outside cooperation slides, increases the smooth and easy degree of sliding, avoids blocking and dunking.

Drawings

Fig. 1 is a sectional structure view of the present invention.

In the figure: the device comprises an outer pipe 1, an inner pipe 2, a transition sleeve 3, a sleeve ring 4, graphite packing 5, a bolt 6, a gland 7, a limiting sleeve 8, an inner ring 9, a first sliding steel ball 10, a second sliding steel ball 11 and a sealing ring 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: the utility model provides a low wearing and tearing rotary compensator, includes outer tube 1 and inner tube 2, and 1 interpolates of outer tube has transition cover 3, and transition cover 3 overlaps on inner tube 2, and the seam crossing of outer tube 1 and the 3 laminating of transition cover installs sealing washer 12, establishes sealing washer 12 and guarantees the leakproofness of outer tube 1 and the 3 links of transition pipe.

An inner ring 9 is fixedly arranged on the inner pipe wall of the inner pipe 2, the inner ring 9 is abutted against the sleeve wall of the port of the transition sleeve 3, and the inner ring is arranged to limit the connecting position of the inner pipe 2 and the transition sleeve 3.

A first sliding steel ball 10 is arranged at a gap formed by the inner pipe 2, the transition sleeve 3 and the inner ring 9, and the first sliding steel ball 10 is arranged to ensure the smoothness of the sliding of the inner pipe wall of the inner pipe 2.

The gap formed by the transition sleeve 3, the lantern ring 4 and the inner tube 2 is provided with a second sliding steel ball 11, and the second sliding steel ball 11 is arranged to ensure the smoothness of the sliding of the outer tube wall of the inner tube.

The inner tube 2 is far away from one side of the outer tube 1 and is sleeved with a gland 7, the outer tube 1 and the transition sleeve 3 are fixedly connected through a bolt 6, a lantern ring 4 is arranged in a gap formed by the transition sleeve 3 and the inner tube 2, the lantern ring 4 is fixed on the inner sleeve wall of the transition sleeve 4, and the gap formed by the transition sleeve 3 and the inner tube 2 is filled with graphite filler 5

The end socket department cover that outer tube 1, transition cover 3 and inner tube 2 laminated has same stop collar 8, through establishing stop collar 8, inject the hookup location of outer tube 1, transition cover 3 and inner tube 2 laminating end.

The working principle is as follows: through establishing transition cover 3 between inner tube 2 and outer tube 1, through establishing gland 7 with transition cover 3 be fixed in outer tube 1 on, transition pipe 3 blocks on inner tube 2, and its interior outer tube surface all rotates along transition pipe 3 when interior 2 pipes rotate, avoids 1 wearing and tearing to outer tube, and the inside and outside cooperation slides, increases the smooth and easy degree of sliding, avoids blocking.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A low-wear rotary compensator comprising an outer tube (1) and an inner tube (2), characterized in that: the utility model discloses a transition cover, including outer tube (1), transition cover (3), bolt (6), transition cover (3) and inner tube (2), outer tube (1) one side cover is kept away from in inner tube (2) has gland (7), and gland (7), outer tube (1) and transition cover (3) pass through bolt (6) fixed connection, be equipped with lantern ring (4) in the clearance that transition cover (3) and inner tube (2) formed, and lantern ring (4) are fixed in on transition cover (3) inner jacket wall, the clearance intussuseption that transition cover (3) and inner tube (2) formed is filled with graphite packing (5).

2. A low wear rotary compensator according to claim 1, wherein: and a sealing ring (12) is arranged at the joint of the outer pipe (1) and the transition sleeve (3).

3. A low wear rotary compensator according to claim 1, wherein: an inner ring (9) is fixedly arranged on the inner pipe wall of the inner pipe (2), and the inner ring (9) is abutted against the end opening sleeve wall of the transition sleeve (3).

4. A low wear rotary compensator according to claim 1 or 3, characterized by: and a first sliding steel ball (10) is arranged in a gap formed by the inner pipe (2), the transition sleeve (3) and the inner ring (9).

5. A low wear rotary compensator according to claim 1 or 3, characterized by: and a second sliding steel ball (11) is arranged in a gap formed by the transition sleeve (3), the lantern ring (4) and the inner pipe (2).

6. A low wear rotary compensator according to claim 1 or 3, characterized by: the joint of the outer pipe (1), the transition sleeve (3) and the inner pipe (2) is sleeved with the same limiting sleeve (8).