CN213089059U - High-performance double-end-face sealing rotary joint - Google Patents

Abstract

The utility model discloses a high performance bi-polar face seals rotary joint relates to rotary joint technical field, including the swivel pipe, the swivel pipe outside slides and has cup jointed the swivel outer loop, and the outside slip of swivel pipe has cup jointed the dustcoat locking cap, swivel outer loop bottom is provided with thrust bearing, and is connected with swivel bearing between thrust bearing and the dustcoat locking cap, the slip of swivel outer loop inner wall has cup jointed polytetrafluoroethylene water proof sealing ring, and polytetrafluoroethylene water proof sealing ring top is provided with the sealing ring card cap with swivel outer loop threaded connection. The utility model can conveniently disassemble and replace the polytetrafluoroethylene waterproof sealing ring inside through the detachable sealing ring clamping cap, and can easily replace the rotary bearing and the thrust bearing by combining the detachable outer cover fixing cap, so that the abrasion part of the rotary joint can be conveniently and rapidly replaced; and through swift detachable construction, can dismantle its part fast to inside washing.

Description

High-performance double-end-face sealing rotary joint

Technical Field

The utility model relates to a rotary joint technical field specifically is a high performance bi-polar face seals rotary joint.

Background

The rotary joint is a sealed rotary connector for three hundred and sixty degrees rotary transmission medium, the application field of the rotary joint almost covers various processing and manufacturing industries, such as metallurgy, machine tools, power generation, petroleum, rubber, plastics, textile, printing and dyeing, pharmacy, cigarettes, paper making, food, feed processing and the like, the rotary joint is used for inputting liquid into equipment which rotates or reciprocates from the side of a pipeline and then discharging sealing devices for connection, and cylindrical, drum-shaped, truncated cone-shaped, spherical rotating equipment and equipment which reciprocates at any angle and uses gas such as steam, water, oil, gas, air, salt water, ammonia and the like and liquid for heating, drying and cooling, and related equipment which is used for clamping, braking and holding can be matched with the rotary joint, particularly metal hoses, because the bending radius is large, the stroke needs to have quite long overall length, the rotary joint is assembled at the root part, the shortest hose length can be used, the use does not occupy space, the use method can also be used for absorbing the twist of the hose, the whole group of rotary joints can also be matched with complex actions. The present invention can be applied to a portion where a hose is not easily attached, a portion where a large leakage is likely to occur, and can be safely used even under severe conditions such as high temperature, high pressure, and complicated operations, for example, when a rotary joint for inserting oil and steam piping is assembled in a case where a fuel tank of a boiler is on fire.

But present rotary joint adopts the joint design more, and through welded connection after the equipment, be difficult to change after inside wearing and tearing spare damages, can only adopt the mode of whole change to replace, and because the welding becomes whole, can't wash after inside filth is piled up, life descends by a wide margin.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problem that the existing rotary joint wear part is difficult to replace and the internal dirt is difficult to clean, a high-performance double-end-face sealing rotary joint is provided.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high performance bi-polar face seals rotary joint, includes the swivel pipe, the swivel pipe outside slides and has cup jointed the swivel outer loop, and the outside slip of swivel pipe has cup jointed the dustcoat locking cap, swivel outer loop bottom is provided with thrust bearing, and is connected with swivel bearing between thrust bearing and the dustcoat locking cap, the slip of swivel outer loop inner wall has cup jointed polytetrafluoroethylene water proof sealing ring, and polytetrafluoroethylene water proof sealing ring top be provided with swivel outer loop threaded connection's sealing ring card cap, the inside fixed pipe that has cup jointed of sealing ring card cap, and sliding connection have with polytetrafluoroethylene water proof sealing ring complex polytetrafluoroethylene seal ring between fixed pipe and the swivel pipe.

Preferably, the inner wall of the outer cover fixing cap is provided with outer cover fixing cap threads matched with the outer ring of the rotary joint, and external threads matched with the outer ring of the rotary joint and the outer cover fixing cap threads are arranged between the outer ring of the rotary joint and the outer cover fixing cap threads.

Preferably, the outer wall of the sealing ring clamping cap is provided with sealing ring clamping cap threads matched with the outer ring of the rotary joint, and connecting threads matched with the outer ring of the rotary joint and the sealing ring clamping cap threads are arranged between the outer ring of the rotary joint and the sealing ring clamping cap threads.

Preferably, the sealing ring clamping cap outer wall upper end is provided with outer hexagonal structure, dustcoat locking cap outer wall lower extreme is provided with the outer hexagonal molding with spanner instrument complex.

Preferably, the thrust bearing and the outer ring of the rotary joint are matched and fixed by adopting a concave-convex edge structure, and the rotary bearing and the outer wall of the rotary pipe are matched and fixed by adopting a ridge-groove structure.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model can conveniently disassemble and replace the polytetrafluoroethylene waterproof sealing ring inside through the detachable sealing ring clamping cap, and can easily replace the rotary bearing and the thrust bearing by combining the detachable outer cover fixing cap, so that the abrasion part of the rotary joint can be conveniently and rapidly replaced; and after the internal dirt is deposited, the parts can be quickly disassembled through the quick detachable structure, and the inside of the parts can be cleaned.

Drawings

FIG. 1 is a side cross-sectional view of the present invention;

fig. 2 is a side view of the present invention;

fig. 3 is a top view of the present invention;

fig. 4 is a sectional view of the present invention.

In the figure: 1. rotating the tube; 2. a polytetrafluoroethylene sealing gasket; 3. a fixed tube; 4. a cover fixing cap; 5. a rotating bearing; 6. a thrust bearing; 7. the outer cover is fixed with the cap thread; 8. a polytetrafluoroethylene waterproof sealing ring; 9. a rotary joint outer ring; 10. the sealing ring is clamped with the cap thread; 11. the sealing ring is clamped with the cap.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" 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 "mounted", "connected" and "disposed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention according to its overall structure.

Referring to fig. 1-4, a high performance double-end-face sealing rotary joint includes a rotary pipe 1, a rotary joint outer ring 9 is slidably sleeved outside the rotary pipe 1, an outer cover fixing cap 4 is slidably sleeved outside the rotary pipe 1, a thrust bearing 6 is disposed at the bottom of the rotary joint outer ring 9, a rotary bearing 5 is connected between the thrust bearing 6 and the outer cover fixing cap 4, a polytetrafluoroethylene water-resisting sealing ring 8 is slidably sleeved on the inner wall of the rotary joint outer ring 9, a sealing ring clamping cap 11 in threaded connection with the rotary joint outer ring 9 is disposed at the top of the polytetrafluoroethylene water-resisting sealing ring 8, a fixed pipe 3 is sleeved inside the sealing ring clamping cap 11, and a polytetrafluoroethylene sealing washer 2 matched with the polytetrafluoroethylene water-resisting sealing ring 8 is slidably connected between the fixed pipe 3 and the rotary pipe 1.

The utility model can conveniently disassemble and replace the inner polytetrafluoroethylene waterproof sealing ring 8 through the detachable sealing ring clamping cap 11, and the rotary bearing 5 and the thrust bearing 6 can be easily replaced by combining the detachable outer cover fixing cap 4, so that the abrasion part of the rotary joint can be conveniently and rapidly replaced; and after the internal dirt is deposited, the parts can be quickly disassembled through the quick detachable structure, and the inside of the parts can be cleaned.

Please refer to fig. 1, the inner wall of the outer cover fixing cap 4 is provided with an outer cover fixing cap thread 7 matched with the outer ring 9 of the rotary joint, and an outer thread matched with the outer cover fixing cap thread 7 is arranged between the outer ring 9 of the rotary joint and the outer cover fixing cap thread 7, the outer cover fixing cap thread 7 is matched with the outer thread, so that the outer cover fixing cap 4 can be mounted and dismounted conveniently.

Please refer to fig. 1 again, the outer wall of the sealing ring clamping cap 11 is provided with a sealing ring clamping cap thread 10 cooperating with the outer ring 9 of the rotary joint, and a connecting thread cooperating with the outer ring 9 of the rotary joint and the sealing ring clamping cap thread 10 is provided between the outer ring 9 of the rotary joint and the sealing ring clamping cap thread 10, the utility model discloses a sealing ring clamping cap thread 10 is in the same connecting thread cooperation, which facilitates the installation and the disassembly of the sealing ring clamping cap 11.

Please refer to fig. 2 and fig. 3, the upper end of the outer wall of the sealing ring clamping cap 11 is provided with an outer hexagonal structure, and the lower end of the outer wall of the outer cover fixing cap 4 is provided with an outer hexagonal shape matched with the wrench tool, so that the utility model discloses an outer hexagonal structure makes the caliper tool can be more convenient to be matched with the sealing ring clamping cap 11 and the outer cover fixing cap 4, thereby rapidly disassembling and assembling.

Please refer to fig. 1, it is fixed that the thrust bearing 6 and the rotary joint outer ring 9 are engaged with each other by a concave-convex edge structure, and the rotary bearing and the outer wall of the rotary pipe 1 are engaged with each other by a ridge-groove structure, so that the rotary pipe 1 and the rotary bearing 5 can be inserted into the assembly by the concave-convex edge structure.

The working principle is as follows: sleeving a sealing ring clamping cap 11 outside a fixed pipe 3, sleeving a polytetrafluoroethylene water-resisting sealing ring 8 into a rotary joint outer ring 9, inserting the fixed pipe 3 into the middle of the polytetrafluoroethylene water-resisting sealing ring 8, screwing the sealing ring clamping cap 11 into the rotary joint outer ring 9 through a sealing ring clamping cap thread 10 to finish the fixation of a fixed pipe end, sleeving a thrust bearing 6 into the rotary joint outer ring 9, placing a polytetrafluoroethylene sealing washer 2, sleeving a rotary pipe 1 into a rotary bearing 5, fixing the rotary pipe 1 and the rotary bearing 5 with the rotary joint outer ring 9 through an outer cover fixing cap 4, bearing an axial force through the thrust bearing 6, reducing the friction force between the rotary pipe 1 and the polytetrafluoroethylene sealing washer 2, enabling the rotary pipe 1 to obtain a high-performance rotation effect through the rotary bearing 5, and when an abrasion part needs to be replaced or the inside needs to be cleaned, the outer cover fixing cap 4 and the sealing ring clamping cap 11 can be detached and replaced or cleaned.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (5)

1. The utility model provides a high performance bi-polar face seals rotary joint, includes swivel pipe (1), its characterized in that: rotatory pipe (1) outside slip has cup jointed rotary joint outer ring (9), and rotatory pipe (1) outside slip has cup jointed dustcoat locking cap (4), rotary joint outer ring (9) bottom is provided with thrust bearing (6), and is connected with swivel bearing (5) between thrust bearing (6) and dustcoat locking cap (4), polytetrafluoroethylene water proof sealing ring (8) have been cup jointed in the slip of rotary joint outer ring (9) inner wall, and polytetrafluoroethylene water proof sealing ring (8) top be provided with rotary joint outer ring (9) threaded connection's sealing ring card cap (11), fixed tube (3) have been cup jointed to sealing ring card cap (11) inside, and sliding connection has polytetrafluoroethylene seal ring (2) with polytetrafluoroethylene water proof sealing ring (8) complex between fixed tube (3) and rotatory pipe (1).

2. A high performance double end-face sealed rotary joint as claimed in claim 1, wherein: the inner wall of the outer cover fixing cap (4) is provided with outer cover fixing cap threads (7) matched with the rotary joint outer ring (9), and external threads matched with the rotary joint outer ring (9) are arranged between the rotary joint outer ring (9) and the outer cover fixing cap threads (7).

3. A high performance double end-face sealed rotary joint as claimed in claim 1, wherein: the outer wall of the sealing ring clamping cap (11) is provided with a sealing ring clamping cap thread (10) matched with the outer ring (9) of the rotary joint, and a connecting thread matched with the outer ring (9) of the rotary joint is arranged between the outer ring (9) of the rotary joint and the sealing ring clamping cap thread (10).

4. A high performance double end-face sealed rotary joint as claimed in claim 1, wherein: the outer wall upper end of the sealing ring clamping cap (11) is provided with an outer hexagonal structure, and the lower end of the outer wall of the outer cover fixing cap (4) is provided with an outer hexagonal shape matched with a wrench tool.

5. A high performance double end-face sealed rotary joint as claimed in claim 1, wherein: the thrust bearing (6) is matched and fixed with the rotary joint outer ring (9) through a concave-convex edge structure, and the rotary bearing is matched and fixed with the outer wall of the rotary pipe (1) through an edge groove structure.

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