CN220016500U - Rotary joint with external rotation of welding pipe in shaft - Google Patents

Abstract

The utility model discloses a rotary joint with a welded pipe inside a shaft, which comprises a shaft sleeve and a connecting flange, wherein the shaft is arranged inside the shaft sleeve, a left non-compensating ring is arranged on the shaft sleeve, a compensating ring seat is arranged on the left side of the connecting flange through screws, a left compensating ring matched with the left non-compensating ring is arranged inside the compensating ring seat, a cavity is arranged on the right side of the connecting flange, a non-compensating ring seat is arranged on the right side of the cavity, a right non-compensating ring is arranged on the non-compensating ring seat, a transmission seat is fixedly arranged on the outer side of the shaft sleeve, and a right compensating ring matched with the right non-compensating ring is arranged on the transmission seat.

Description

Rotary joint with external rotation of welding pipe in shaft

Technical Field

The utility model relates to the technical field of rotary joints, in particular to a rotary joint with an inner shaft welded with the outside of a pipe for rotation.

Background

In the prior art, a rotary joint is generally adopted as a connecting device for conveying a fluid medium from a stationary pipeline to rotary equipment such as a stirring kettle and the like, and a mechanical seal is generally adopted as a sealing device in the conventional rotary joint.

However, in mechanical sealing, a shaft or a shaft sleeve drives a movable ring to rotate, so that the rotary joint is complex in structure, large in occupied space and unstable in operation.

Disclosure of Invention

The present utility model is directed to a rotary joint for rotating the outside of a welded pipe in a shaft, which solves the above-mentioned problems of the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a rotary joint of welding pipe outside rotation in axle, includes axle sleeve and flange, the inside of axle sleeve is equipped with the axle, install left uncompensated ring on the axle sleeve, the flange left side is through the screw installation compensating ring seat, compensating ring seat's inside be equipped with left uncompensated ring matched with left compensating ring, the cavity is installed on flange's right side, the uncompensated ring seat is installed on the right side of cavity, be equipped with right uncompensated ring on the uncompensated ring seat, the outside fixed mounting of axle sleeve has the transfer seat, be equipped with on the transfer seat with right uncompensated ring matched with right compensating ring, the inside of axle is equipped with first sanitary pipe and second sanitary pipe.

As a preferable mode of the utility model, a gap is arranged between the shaft sleeve and the connecting flange, and the second sanitary pipe and the first sanitary pipe are communicated with the gap.

As a preferable scheme of the utility model, a bearing seat is arranged on the right side of the non-compensation ring seat, and a self-aligning roller bearing is arranged in the bearing seat.

As a preferable scheme of the utility model, two framework oil seals are arranged on the outer side of the shaft sleeve, the two framework oil seals are respectively positioned on two sides of the self-aligning roller bearing, and a bearing gland is arranged on one side of the bearing seat.

As a preferable scheme of the utility model, the left spring is arranged on the compensation ring seat, a push ring is arranged between the left compensation ring and the left spring, and the right spring is arranged on the transmission seat.

As a preferable scheme of the utility model, a second O-shaped ring is arranged between the left non-compensation ring and the shaft sleeve, and a third O-shaped ring is arranged between the left compensation ring and the compensation ring seat.

As a preferable scheme of the utility model, a fourth O-shaped ring is arranged between the connecting flange and the cavity, and a fifth O-shaped ring is arranged between the cavity and the non-compensation ring seat.

As a preferable scheme of the utility model, a first O-shaped ring is arranged between the right compensation ring and the shaft sleeve, and a sixth O-shaped ring is arranged between the right non-compensation ring and the non-compensation ring seat.

Compared with the prior art, the utility model has the beneficial effects that: the utility model changes the design thought of the rotary joint with the rotary inner tube, has novel design, exquisite and simple structure, reduces the axial and radial volumes, is convenient to install and detach, can be widely applied to various stirring devices, and has stable operation, good sealing performance and long service life.

Drawings

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

fig. 2 is an enlarged view of the utility model at a in fig. 1.

In the figure: 1. a shaft; 2. a shaft sleeve; 3. a first sanitary pipe; 4. a second sanitary pipe; 5. a connecting flange; 6. a self-aligning roller bearing; 7. a bearing seat; 8. a bearing gland; 9. a framework oil seal; 10. a left spring; 11. a left non-compensating ring; 12. a left compensation ring; 13. a push ring; 14. a transmission seat; 15. a right spring; 16. a right compensation ring; 17. a right non-compensating ring; 18. a non-compensating ring seat; 19. a cavity; 20. a first O-ring; 21. a second O-ring; 22. a third O-ring; 23. a fourth O-ring; 24. a fifth O-ring; 25. a sixth O-ring; 26. a compensation ring seat; 27. a void.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 2, the present utility model provides a technical solution: the utility model discloses a rotary joint with an external rotation of a welded pipe in a shaft, which comprises a shaft sleeve 2 and a connecting flange 5, wherein the connecting flange 5 is connected with a kettle mouth, the shaft 1 and the shaft sleeve 2 and related parts on the shaft sleeve are fixed in operation, an external mechanical sealing structure such as the shaft sleeve 2, a left compensating ring 12, a cavity 19, a non-compensating ring seat 18, a right non-compensating ring 17, the cavity 19 and a bearing gland 8 rotate along with the rotation of a stirring kettle, so that the design of the rotary joint rotating by an inner pipe is changed, the rotary joint is changed into the rotation of the shaft 1 by using the mechanical sealing shaft 1, the axial and radial volumes of the utility model are reduced, the operation is stable, the sealing performance is good, the shaft 1 is arranged in the shaft sleeve 2, the left non-compensating ring 11 is arranged on the shaft sleeve 2, the left side of the connecting flange 5 is provided with a compensating ring seat 26 by using screws, the inside of the compensating ring seat 26 is provided with a left compensating ring 12 matched with the left non-compensating ring 11, the left non-compensating ring 11 is matched with the left compensating ring 12 to form a sealing end face, the right side of the connecting flange 5 is provided with the cavity 19, the right side of the cavity 19 is provided with the non-compensating ring 18 on the right side of the non-compensating ring 18, the non-compensating ring 18 is provided with a second non-compensating ring 16 matched with the right compensating ring 17, the non-compensating ring 16 is arranged on the right non-compensating ring 17 is matched with the right non-compensating ring 16, the sanitary ring 16 is arranged on the inner pipe seat 4, and the sanitary pipe is arranged on the sanitary pipe, and the sanitary pipe is matched with the sanitary pipe is arranged in the middle pipe, and the sanitary pipe is provided with the sanitary pipe is in the middle pipe seat, and the sanitary pipe is provided with the sanitary pipe is in the pipe.

Wherein, be equipped with space 27 between axle sleeve 2 and the flange 5, second sanitary pipe 4 and first sanitary pipe 3 all communicate with space 27.

The right side of the non-compensation ring seat 18 is provided with a bearing seat 7, and the inside of the bearing seat 7 is provided with a self-aligning roller bearing 6.

Wherein, the outside of axle sleeve 2 is equipped with two skeleton oil blanket 9, and skeleton oil blanket 9 is used for preventing that external impurity from getting into in the aligning roller bearing 6, also can leak out the inside lubricating oil of aligning roller bearing 6 now simultaneously, and two skeleton oil blanket 9 are located aligning roller bearing 6's both sides respectively, and bearing cap 8 is installed to one side of bearing frame 7.

The left spring 10 is installed on the compensation ring seat 26, the left spring 10 applies radial thrust to the left compensation ring 12 through the push ring 13, so that the left compensation ring 12 can be tightly attached to the left non-compensation ring 11, the push ring 13 is arranged between the left compensation ring 12 and the left spring 10, the right spring 15 is installed on the transmission seat 14, the right spring 15 is used for applying thrust to the right compensation ring 16, and the right compensation ring 16 can be tightly attached to the right non-compensation ring 17.

Wherein, be equipped with second O shape circle 21 between non-compensation ring 11 and the axle sleeve 2 on a left side, second O shape circle 21 is used for improving the leakproofness between non-compensation ring 11 on a left side and the axle sleeve 2, is equipped with third O shape circle 22 between compensation ring 12 and the compensation ring seat 26, and third O shape circle 22 is used for improving the leakproofness between left side compensation ring 12 and the compensation ring seat 26.

The fourth O-ring 23 is disposed between the connection flange 5 and the cavity 19, the fourth O-ring 23 is used for improving tightness between the connection flange 5 and the cavity 19, the fifth O-ring 24 is disposed between the cavity 19 and the uncompensated ring seat 18, and the fifth O-ring 24 is used for improving tightness between the cavity 19 and the uncompensated ring seat 18.

Wherein, be equipped with first O shape circle 20 between right compensating ring 16 and the axle sleeve 2, first O shape circle 20 is used for improving the leakproofness between right compensating ring 16 and the axle sleeve 2, is equipped with sixth O shape circle 25 between right non-compensating ring 17 and the non-compensating ring seat 18, and sixth O shape circle 25 is used for improving the leakproofness between right non-compensating ring 17 and the non-compensating ring seat 18.

Specifically, during operation, the utility model is connected with the kettle opening through the connecting flange 5, the shaft 1, the shaft sleeve 2 and related parts such as the left non-compensating ring 11, the transmission seat 14, the right compensating ring 16 and the right spring 15 on the shaft sleeve are fixed, external mechanical seal structures such as the shaft sleeve 2, the left compensating ring 12, the cavity 19, the non-compensating ring seat 18, the right non-compensating ring 17, the cavity 19 and the bearing gland 8 can rotate along with the rotation of the stirring kettle, the second sanitary pipe 4 is used for introducing cooling water into the stirring kettle, the first sanitary pipe 3 is used for discharging the introduced cooling water, so that the rotation of the mechanical seal shaft 1 for the rotary joint is changed into the rotation of the shaft 1 to be static, and the external mechanical seal structure is rotated, so that the utility model has the advantages of reduced axial and radial volumes, stable operation and good sealing performance.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," "third," "fourth" may explicitly or implicitly include at least one such feature.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

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

Claims (8)

1. The utility model provides a rotatory rotary joint of welding pipe outside in axle, includes axle sleeve (2) and flange (5), the inside of axle sleeve (2) is equipped with axle (1), its characterized in that: install left uncompensated ring (11) on axle sleeve (2), compensating ring seat (26) are installed through the screw in flange (5) left side, compensating ring seat (26) inside be equipped with left uncompensated ring (11) matched with left compensating ring (12), cavity (19) are installed on flange (5)'s right side, uncompensated ring seat (18) are installed on cavity (19)'s right side, be equipped with right uncompensated ring (17) on uncompensated ring seat (18), transmission seat (14) are fixed mounting in the outside of axle sleeve (2), be equipped with on transmission seat (14) with right uncompensated ring (17) matched with right compensating ring (16), the inside of axle (1) is equipped with first sanitary pipe (3) and second sanitary pipe (4).

2. A rotary joint for external rotation of an in-shaft welded pipe according to claim 1, wherein: a gap (27) is arranged between the shaft sleeve (2) and the connecting flange (5), and the second sanitary pipe (4) and the first sanitary pipe (3) are communicated with the gap (27).

3. A rotary joint for external rotation of an in-shaft welded pipe according to claim 1, wherein: the right side of the non-compensation ring seat (18) is provided with a bearing seat (7), and the interior of the bearing seat (7) is provided with a self-aligning roller bearing (6).

4. A rotary joint for external rotation of an in-shaft welded pipe according to claim 3, wherein: two framework oil seals (9) are arranged on the outer side of the shaft sleeve (2), the two framework oil seals (9) are respectively located on two sides of the self-aligning roller bearing (6), and a bearing gland (8) is arranged on one side of the bearing seat (7).

5. A rotary joint for external rotation of an in-shaft welded pipe according to claim 1, wherein: the left spring (10) is arranged on the compensation ring seat (26), the push ring (13) is arranged between the left compensation ring (12) and the left spring (10), and the right spring (15) is arranged on the transmission seat (14).

6. A rotary joint for external rotation of an in-shaft welded pipe according to claim 1, wherein: a second O-shaped ring (21) is arranged between the left non-compensation ring (11) and the shaft sleeve (2), and a third O-shaped ring (22) is arranged between the left compensation ring (12) and the compensation ring seat (26).

7. A rotary joint for external rotation of an in-shaft welded pipe according to claim 1, wherein: a fourth O-shaped ring (23) is arranged between the connecting flange (5) and the cavity (19), and a fifth O-shaped ring (24) is arranged between the cavity (19) and the uncompensated ring seat (18).

8. A rotary joint for external rotation of an in-shaft welded pipe according to claim 1, wherein: a first O-shaped ring (20) is arranged between the right compensation ring (16) and the shaft sleeve (2), and a sixth O-shaped ring (25) is arranged between the right non-compensation ring (17) and the non-compensation ring seat (18).