CN216046034U

CN216046034U - High temperature resistant high pressure resistant rotary joint

Info

Publication number: CN216046034U
Application number: CN202122555415.3U
Authority: CN
Inventors: 俞良; 张玉; 俞海洪
Original assignee: Tengzhou Dahong Machinery Manufacturing Co ltd
Current assignee: Tengzhou Dahong Machinery Manufacturing Co ltd
Priority date: 2021-10-23
Filing date: 2021-10-23
Publication date: 2022-03-15
Anticipated expiration: 2031-10-23

Abstract

The utility model discloses a high-temperature-resistant and high-pressure-resistant rotary joint, and particularly relates to the technical field of rotary joints. The utility model has the beneficial effects that: through the form of arranging the compression ring and the groove, the movement of the compression ring is controlled by the bolt, the trapezoid part of the compression ring can penetrate into the groove, and the two side walls of the groove are extruded outwards to be tightly attached to the inner part of the shell and the outer wall of the rotating mandrel, so that the sealing performance is better, and meanwhile, the bolt replaces a spring to push the compression ring, so that the rotary clamping device can bear higher temperature.

Description

High temperature resistant high pressure resistant rotary joint

Technical Field

The utility model relates to the technical field of rotary joints, in particular to a high-temperature-resistant and high-pressure-resistant rotary joint.

Background

Rotary joint is the airtight type connector that can 360 degrees rotations and transport the medium simultaneously, and rotary joint can send media such as liquid, gas inside rotary motion's the equipment to can discharge the medium that send into again simultaneously, and the common type that has high temperature rotary joint, high pressure rotary joint need fine leakproofness just can be high-pressure resistant, and high temperature rotary joint needs the temperature resistance of inside spring high.

The prior art has the following defects: at present, the rotary joint on the market is not high-pressure resistant because the sealing performance is poor, and meanwhile, because the design of the spring is adopted in the rotary joint, the self elasticity of the spring is utilized to abut against the sealing ring for sealing, and the strength of the spring is reduced when the spring is subjected to high temperature, so that the sealing performance of the rotary joint is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-temperature-resistant and high-pressure-resistant rotary joint, which aims to solve the problems that the rotary joint on the market is not high-pressure-resistant due to poor sealing performance, and meanwhile, due to the design of a spring in the rotary joint, the spring pushes against a sealing ring for sealing by utilizing the elasticity of the spring, and the strength of the spring is reduced when the spring is subjected to high temperature, so that the sealing performance of the rotary joint is reduced.

In order to achieve the above purpose, the utility model provides the following technical scheme: a high-temperature-resistant high-pressure-resistant rotary joint comprises a first shell, wherein the middle part of one side of the first shell is in threaded connection with a water outlet pipe, the inner side of one end of the water outlet pipe in the shell is provided with a thread, the inner thread of the water outlet pipe is connected with a central water pipe, the outer side of the first shell far away from one end of the water outlet pipe is provided with a connecting mechanism, the first shell is fixedly connected with a second shell through the connecting mechanism, the central water pipe penetrates through the second shell, a rotary mandrel is arranged inside the first shell and the second shell, a sealing mechanism is arranged outside the rotary mandrel, the sealing mechanism comprises a limiting ring and a pressing ring, the limiting ring is fixedly arranged in the middle of the outer side of the rotating mandrel, the rotating mandrel is respectively sleeved with a first sealing ring and a second sealing ring which are respectively positioned at two sides of the limiting ring, the first sealing ring is arranged on one side close to the water outlet pipe, and the pressing ring is arranged between the first sealing ring and the water outlet pipe.

Preferably, the inclination of the two side faces of the limit ring is oblique, a groove is formed in one side, away from the limit ring, of the first sealing ring, one side, away from the water outlet pipe, of the compression ring is trapezoidal, a plurality of bolts are rotatably mounted on one side, away from the limit ring, of the compression ring through bearings in an equal-angle mode, penetrate through the first shell and are in threaded connection with the first shell, and the matching mode of the groove and the trapezoidal compression ring is designed, so that the sealing performance of the first sealing ring can be improved.

Preferably, the one end that the circular face of casing one is close to the outlet pipe is equipped with the inlet tube, one side fixed mounting that the inside of casing one is close to the outlet pipe has sealed the pad, and sealed pad plays sealed effect, avoids outlet pipe department to reveal.

Preferably, coupling mechanism includes fixed block one, the quantity of fixed block one is established to four, four the outside of outlet pipe one end is kept away from to first angle fixed mounting of fixed block in the casing, angle fixed mounting such as the outside that casing two is close to outlet pipe one end has four fixed blocks two, four the position of fixed block two corresponds about with the position one of four fixed blocks one, fixed block one passes through bolt fixed connection with fixed block two, controls correspondingly, is convenient for be in the same place casing one and two fixed connection of casing through the bolt.

Preferably, one side fixed mounting that casing two is close to the outlet pipe has the round compact heap, the outside diameter of compact heap is less than the inside diameter of casing one, the mounting groove has been seted up to the inside that casing two was kept away from compact heap one side, fixed mounting has ball bearing in the mounting groove, ball bearing closely cup joints at rotatory spindle, rotatory spindle runs through casing two, sets up ball bearing and plays the supporting role of rotatory spindle, and the inseparable laminating can avoid rotatory spindle shake to influence the gas tightness simultaneously.

Preferably, the outside diameters of the first sealing ring and the second sealing ring are in interference fit with the inside diameter of the first shell, the inside diameters of the first sealing ring and the second sealing ring are in interference fit with the rotating mandrel, and the interference fit can improve the sealing performance of the sealing mechanism.

In the technical scheme, the utility model provides the following technical effects and advantages:

1. through the form of arranging the compression ring and the groove, the movement of the compression ring is controlled by the bolt, the trapezoid part of the compression ring can penetrate into the groove, and the two side walls of the groove are extruded outwards to be tightly attached to the inner part of the shell and the outer wall of the rotating mandrel, so that the sealing performance is better, and meanwhile, the bolt replaces a spring to push the compression ring, so that the rotary clamping device can bear higher temperature.

2. By arranging the two side surfaces of the limiting ring to incline by 45 degrees, when the sealing device is installed, the inclined surface of the limiting ring can apply upward force to the first sealing ring and the second sealing ring, so that the first sealing ring and the second sealing ring are more tightly attached to the inner wall of the first shell.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a schematic view of an internal structure of the housing according to the present invention.

FIG. 3 is a schematic view of the internal structure of the second housing of the present invention.

Fig. 4 is an exploded view of the sealing mechanism of the present invention.

Fig. 5 is a schematic view of a rotary mandrel structure according to the present invention.

Description of reference numerals:

1. a first shell; 2. a water outlet pipe; 3. a second shell; 4. a connecting mechanism; 5. a sealing mechanism; 6. a water inlet pipe; 7. a central water pipe; 8. rotating the mandrel; 9. a ball bearing; 10. mounting grooves; 11. a gasket; 12. a compression block; 401. a first fixed block; 402. a second fixed block; 501. a compression ring; 502. a first sealing ring; 503. a groove; 504. a limiting ring; 505. and a second sealing ring.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more example embodiments. In the following description, numerous specific details are provided to give a thorough understanding of example embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, steps, and so forth. In other instances, well-known structures, methods, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.

Referring to the attached drawings 1-5 in the specification, the high temperature and high pressure resistant rotary joint of the embodiment comprises a first shell 1, a water outlet pipe 2 is connected to the middle of one side of the first shell 1 through a thread, the water outlet pipe 2 is provided with a thread on the inner side of one end inside the first shell 1 for facilitating connection with a central water pipe 7, the water outlet pipe 2 is internally threaded with the central water pipe 7, a connecting mechanism 4 is arranged on the outer side of one end of the first shell 1 away from the water outlet pipe 2, the first shell 1 is fixedly connected with a second shell 3 through the connecting mechanism 4, the central water pipe 7 penetrates through the second shell 3 for facilitating extending into the rotary equipment, a rotary mandrel 8 is arranged inside the first shell 1 and the second shell 3, a sealing mechanism 5 is arranged on the outer side of the rotary mandrel 8, the sealing mechanism 5 comprises a limiting ring 504 and a pressing ring 501, the limiting ring 504 is fixedly installed on the middle of the outer side of the rotary mandrel 8, the rotating mandrel 8 is respectively sleeved with the first sealing ring 502 and the second sealing ring 505, the first sealing ring 502 and the second sealing ring 505 are respectively located on two sides of the limiting ring 504, two sides of the limiting ring 504 can be sealed, the two layers of sealing effects are better, the first sealing ring 502 is arranged on one side close to the water outlet pipe 2, the pressing ring 501 is arranged between the first sealing ring 502 and the water outlet pipe 2, and the pressing ring 501 is convenient to press the first sealing ring 502 on the limiting ring 504.

The outside diameter of the first sealing ring 502 and the second sealing ring 505 is in interference fit with the inside diameter of the first shell 1, the inside diameter of the first sealing ring 502 and the second sealing ring 505 is in interference fit with the rotating mandrel 8, and the sealing performance of the sealing mechanism 5 can be improved through the interference fit.

Two side faces of the limit ring 504 incline by 45 degrees, the side faces can provide an upward force for the first sealing ring 502 and the second sealing ring 505 when the limit ring is installed, the first sealing ring 502 is attached to the inner wall of the first shell 1 more tightly, one side, away from the limit ring 504, of the first sealing ring 502 is provided with a groove 503, one side, away from the water outlet pipe 2, of the clamp ring 501 is trapezoidal, a plurality of bolts are rotatably installed on one side, away from the limit ring 504, of the clamp ring 501 through bearings at equal angles, the bolts penetrate through the first shell 1 and are in threaded connection with the first shell 1, and the bolts can drive the clamp ring 501 to move left and right, so that the clamp ring 501 can clamp the first sealing ring 502.

One side fixed mounting that two 3 of casing are close to outlet pipe 2 has round compact heap 12, compact heap 12 can promote two 505 of sealing ring to be close to spacing ring 504, and compact heap 12 and spacing ring 504 combined action make the inseparabler laminating in the upper and lower both ends of two 505 of sealing ring on casing 1 inner wall and rotatory dabber 8 outer wall, the outside diameter of compact heap 12 is less than the inside diameter of casing 1, casing two 3 keep away from the inside of compact heap 12 one side and has seted up mounting groove 10, fixed mounting has ball bearing 9 in the mounting groove 10, ball bearing 9 closely cup joints at rotatory dabber 8, and ball bearing 9 plays the effect of support to rotatory dabber 8, rotatory dabber 8 runs through casing two 3.

The implementation mode is specifically as follows: during installation, the first shell 1 and the second shell 3 are connected together through the connecting mechanism 4, when the second shell 3 is installed, the pressing block 12 abuts against the second sealing ring 505, the second sealing ring 505 is pushed to move towards the first shell 1 until the second sealing ring 505 abuts against the limiting ring 504, the installation of the second sealing ring 505 is completed, the upper end and the lower end of the second sealing ring 505 are tightly attached to the inner wall of the first shell 1 and the outer wall of the rotating mandrel 8, the sealing effect is achieved, then the bolt which is installed on the pressing ring 501 through the bearing in a rotating mode is screwed, due to the fact that the bolt is in threaded connection with the first shell 1, the bolt can drive the pressing ring 501 to move when being screwed, the trapezoidal portion of the pressing ring 501 extends into the groove 503, the first sealing ring 502 abuts against the limiting ring 504 in a stressed mode, and the side walls of the two sides of the groove 503 protrude towards the outer side of the groove 503 under the effect of the trapezoidal portion of the pressing ring 501, and the sealing task can be completed.

Referring to the attached fig. 1, 2 and 3 of the specification, in the high temperature and high pressure resistant rotary joint of this embodiment, a water inlet pipe 6 is arranged at one end of the circular surface of the first housing 1 close to the water outlet pipe 2, a sealing gasket 11 is fixedly installed at one side of the inside of the first housing 1 close to the water outlet pipe 2, and the sealing gasket 11 plays a role in sealing to prevent leakage at the water outlet pipe 2.

Coupling mechanism 4 includes fixed block one 401, the quantity of fixed block one 401 is established to four, four angle fixed mounting such as fixed block one 401 is in the outside that outlet pipe 2 one end was kept away from to casing 1, establishes the one end of keeping away from outlet pipe 2 and is convenient for connect casing two 3, angle fixed mounting such as the outside that casing two 3 are close to outlet pipe 2 one end has four fixed block two 402, four the position of fixed block two 402 and the position one-to-one left-right correspondence of four fixed block one 401, the one-to-one is convenient for link together fixed block one 401 and fixed block two 402, fixed block one 401 passes through bolt fixed connection with fixed block two 402.

The implementation mode is specifically as follows: when connecting casing 1 and casing two 3, with fixed block 401 and two 402 one-to-one correspondences of fixed block, the rethread bolt and nut link together fixed block 401 and two 402 of fixed block, when installation rotatory dabber 8, heating ball bearing 9 cup joints ball bearing 9 on rotatory dabber 8 again, and the erection joint of rotatory dabber 8 and ball bearing 9 can be accomplished to cooling ball bearing 9.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the utility model.

Claims

1. The utility model provides a high temperature resistant high pressure resistant rotary joint, includes casing one (1), its characterized in that: the utility model discloses a sealing device for a water pump, including casing one (1), the middle part threaded connection of casing one side has outlet pipe (2), outlet pipe (2) are processed threadedly at the inside one end inboard of casing one (1), outlet pipe (2) internal thread connection has central water pipe (7), the outside that outlet pipe (2) one end was kept away from in casing one (1) is equipped with coupling mechanism (4), casing one (1) is through coupling mechanism (4) fixedly connected with casing two (3), casing two (3) are run through in central water pipe (7), casing one (1) and casing two (3) are inside to be equipped with rotatory dabber (8), rotatory dabber (8) outside is equipped with sealing mechanism (5), sealing mechanism (5) include spacing ring (504) and clamp ring (501), spacing ring (504) fixed mounting is at the middle part in rotatory dabber (8) outside, it has cup jointed sealing ring one (502) and sealing ring two (505) and both are located respectively on rotatory dabber (8) The water outlet pipe comprises a limiting ring (504), a first sealing ring (502) is arranged on one side close to the water outlet pipe (2), and a pressing ring (501) is arranged between the first sealing ring (502) and the water outlet pipe (2).

2. A high temperature and pressure resistant rotary joint as claimed in claim 1, wherein: the both sides face slope 45 degrees of spacing ring (504), one side that spacing ring (504) were kept away from in sealing ring (502) is seted up fluted (503), one side that outlet pipe (2) were kept away from in clamp ring (501) is trapezoidal, angle such as one side that spacing ring (504) were kept away from in clamp ring (501) is rotated through the bearing and is installed a plurality of bolt, the bolt runs through casing (1) and just with casing (1) threaded connection.

3. A high temperature and pressure resistant rotary joint as claimed in claim 1, wherein: one end that the circular face of casing (1) is close to outlet pipe (2) is equipped with inlet tube (6), one side fixed mounting that the inside of casing (1) is close to outlet pipe (2) has sealed pad (11).

4. A high temperature and pressure resistant rotary joint as claimed in claim 1, wherein: coupling mechanism (4) are including fixed block one (401), the quantity of fixed block one (401) is established to four, four angle fixed mounting such as fixed block one (401) is kept away from the outside of outlet pipe (2) one end in casing one (1), angle fixed mounting such as the outside that casing two (3) are close to outlet pipe (2) one end has four fixed block two (402), four the position of fixed block two (402) and the position one-to-one left-right correspondence of four fixed block one (401), fixed block one (401) and fixed block two (402) pass through bolt fixed connection.

5. A high temperature and pressure resistant rotary joint as claimed in claim 1, wherein: one side fixed mounting that casing two (3) are close to outlet pipe (2) has round compact heap (12), the outside diameter of compact heap (12) is less than the inside diameter of casing one (1), mounting groove (10) have been seted up to the inside of compact heap (12) one side is kept away from in casing two (3), fixed mounting has ball bearing (9) in mounting groove (10), ball bearing (9) closely cup joint on rotatory dabber (8), rotatory dabber (8) run through casing two (3).

6. A high temperature and pressure resistant rotary joint as claimed in claim 1, wherein: the outer diameters of the first sealing ring (502) and the second sealing ring (505) are in interference fit with the inner diameter of the first shell (1), and the inner diameters of the first sealing ring (502) and the second sealing ring (505) are in interference fit with the rotating mandrel (8).