CN219571210U

CN219571210U - Multichannel rotary joint

Info

Publication number: CN219571210U
Application number: CN202223472890.5U
Authority: CN
Inventors: 张益�; 余波; 罗涛; 刘毅; 谢锡彬
Original assignee: Chengdu Huayi Saier Technology Co ltd
Current assignee: Chengdu Huayi Saier Technology Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-08-22
Anticipated expiration: 2032-12-26

Abstract

The utility model relates to a multi-channel rotary joint which comprises a movable ring, a static ring and a plurality of sealing components, wherein one end of the movable ring is sleeved in the static ring, the outer side wall of the movable ring is abutted against the inner side wall of the static ring through a sealing bearing, a plurality of channels are arranged in the movable ring, a plurality of ring flow channels are arranged on the outer side wall of the movable ring, the plurality of ring flow channels are communicated with the channels in a one-to-one correspondence manner, water inlets are arranged on the static ring corresponding to the ring flow channels, a hollowed-out part is arranged on one side of the water inlets, which is close to the ring flow channels, the plurality of sealing components are correspondingly arranged in the hollowed-out part, the multi-channel rotary joint comprises a spring, the static seal ring and a movable seal ring, the spring is sleeved on the movable ring, two ends of the spring are connected with the two movable seal rings, and the two static seal rings are sleeved on the movable ring, and the static seal ring is clamped between the inner wall of the hollowed-out part and the movable seal ring. The pressure exerted by the fluid entering the joint is utilized to expand the spring, act on the dynamic sealing ring and squeeze the static sealing ring, so that the static sealing ring is tightly pressed at the gap between the dynamic ring and the static ring, and the sealing effect of the dynamic ring and the static ring is ensured.

Description

Multichannel rotary joint

Technical Field

The utility model relates to the technical field of rotary joint sealing, in particular to a multi-channel rotary joint.

Background

The multi-channel rotary head-changing is a rotary joint which can input or output a plurality of different mediums at the same time in one rotary joint without mixing dishes (the simple meaning is that an inlet enters what medium and an outlet should output what medium), so that the rotary joint can take the way respectively, namely the multi-channel rotary joint. The multi-channel rotary joint is mainly used in a plurality of industries such as metallurgy, machine tools, power generation, petroleum, papermaking, printing, textiles, plastics, rubber, medicine, cigarettes, papermaking, food and feed, solar energy and the like. The multichannel rotary joint is internally provided with a plurality of channels, each channel is an independent pipeline, and when a medium is passed, the compressed fluid medium can generate huge pressure on the inner pipe of the rotary joint, so that the requirement on the sealing compression resistance in the rotary joint is very high. The existing sealing method is to add a sealing ring between a movable ring and a static ring, so that the sealing ring is seriously worn for a long time, and the sealing compression resistance of the rotary joint is reduced, so that improvement is needed.

Disclosure of Invention

Based on the above, it is necessary to provide a multi-channel rotary joint in view of the above problems

The utility model provides a multichannel rotary joint, includes the rotating ring, quiet ring and a plurality of seal assembly, rotating ring one end suit is in the quiet ring, the rotating ring lateral wall passes through sealing bearing and quiet ring inside wall butt, the rotating ring is inside to be provided with a plurality of passageways, the rotating ring lateral wall is provided with a plurality of ring runner, a plurality of the ring runner with the passageway is one-to-one intercommunication, it is provided with the inlet opening to correspond the ring runner on the quiet ring, the inlet opening is close to ring runner one side and is provided with fretwork portion, a plurality of seal assembly one-to-one installation in the fretwork portion, seal assembly includes the spring, quiet sealing washer and dynamic seal circle, the spring housing is established on the rotating ring, and the spring both ends are connected with two dynamic seal circles, quiet sealing washer joint is between fretwork portion inner wall and dynamic seal circle.

Preferably, one side of the movable sealing ring, which is away from the spring, is wedge-shaped, and the static sealing ring is correspondingly provided with a notch.

Preferably, the static sealing ring and the dynamic sealing ring are made of fluororubber or polytetrafluoroethylene.

Preferably, one end of the movable ring is provided with a flange plate, and the flange plate is provided with a plurality of bolt holes.

The utility model has the advantages that: the pressure applied by the fluid entering the joint is utilized to expand the spring, act on the dynamic sealing ring and squeeze the static sealing ring, so that the static sealing ring is tightly pressed at the gap between the movable ring and the static ring, the friction quantity can be automatically compensated, the sealing effect of the movable ring and the static ring is ensured, and the sealing performance of the joint is improved.

Drawings

FIG. 1 is a schematic perspective view of a multi-channel rotary joint according to one embodiment;

fig. 2 is a schematic structural view of a multi-channel rotary joint.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1-2, a multichannel rotary joint comprises a movable ring 1, a stationary ring 2 and a plurality of sealing assemblies 3, wherein one end of the movable ring 1 is sleeved in the stationary ring 2, the outer side wall of the movable ring 1 is abutted to the inner side wall of the stationary ring 2 through a sealing bearing 4, a plurality of channels 11 are arranged in the movable ring 1, a plurality of annular channels 12 are arranged on the outer side wall of the movable ring 1 and are communicated with the channels 11 in a one-to-one correspondence manner, water inlets 21 are formed in the stationary ring 2 corresponding to the annular channels 12, a hollowed-out part is formed in one side of the water inlets 21 close to the annular channels 12, a plurality of sealing assemblies 3 are correspondingly arranged in the hollowed-out part in one-to-one manner, the sealing assemblies 3 comprise springs 31, static sealing rings 32 and movable sealing rings 33, the springs 31 are sleeved on the movable ring 1, two ends of the springs 31 are connected with the two movable sealing rings 33, and the static sealing rings 32 are clamped between the inner walls of the hollowed-out parts and the movable sealing rings 33. Specifically, in this embodiment, the moving ring 1 and the static ring 2 are made of metal and are cylindrical, two channels 11 are arranged in the moving ring 1 side by side, two corresponding circular channels 12 are arranged on the surface of the moving ring 1, when the static ring 2 is sleeved on the moving ring 1, the water inlet 21 and the circular channels 12 are located on the same vertical plane, so that fluid entering through the water inlet 21 fills the circular channels 12 and then enters the channels 11, and in other embodiments, other numbers of channels can be arranged according to the fluid types, only the diameters and lengths of the moving ring 1 and the static ring 2 need to be amplified in equal proportion. After the movable ring 1 is sleeved in the stationary ring 2, the movable ring 1 is integrated with an external electrical slip ring (not shown in the figure) to drive the movable ring 1 to rotate in the stationary ring 2, the circular flow channel 12 is communicated with the channel 11, and after the fluid is introduced into the water inlet 21 of the stationary ring 2, the fluid fills the circular flow channel 12, so that the stationary ring 2 can continuously discharge liquid in the rotating process. In order to improve the tightness between the movable ring 1 and the static ring 2, hollowed parts are arranged on two sides of the water inlet 21 and used for installing the sealing assembly 3, when fluid enters the ring runner 12 from the water inlet 21, the movable sealing ring 33 is subjected to fluid hydraulic pressure and drives the spring 31 to stretch to tightly lean against the static sealing rings 32 on two sides, so that the static sealing rings 32 are forced to be extruded and deformed, the interference fit is between the movable ring 1 and the static ring 2, the tightness is greatly improved, after the fluid pressure disappears, the spring returns, the static sealing rings 32 are restored, and the cycle is repeated, the clearance between the movable ring 1 and the static ring 2 is filled by utilizing the forced extrusion deformation of the static sealing rings 32 and the movable sealing rings 33, the friction quantity can be automatically compensated, the sealing effect of the movable ring and the static ring is ensured, and the sealing performance of the joint is improved. The static sealing ring 32 and the dynamic sealing ring 33 are made of fluororubber or polytetrafluoroethylene, and are wear-resistant, corrosion-resistant and high in universality.

As shown in fig. 2, the movable sealing ring 33 is wedge-shaped on the side facing away from the spring 31, and the static sealing ring 32 is correspondingly provided with a notch. It is known that when the two movable sealing rings 33 are subjected to fluid pressure, the two movable sealing rings 33 move to the opposite sides to drive the spring 31 to stretch, the movable sealing rings 33 squeeze the static sealing rings 32, in order to increase the contact area of the two movable sealing rings 33 and the static sealing rings 32, one surface of the movable sealing rings 33, which is contacted with the static sealing rings 32, is provided with a wedge shape, when the wedge structure squeezes the static sealing rings 32, the wedge structure is just inserted into the gap, the gap between the movable sealing rings and the static sealing rings is smaller, and a gap is not easy to be reserved, so that the tightness between the movable sealing rings and the static sealing rings is enhanced.

As shown in fig. 1-2, one end of the moving ring 1 is provided with a flange 13, and the flange 13 is provided with a plurality of bolt holes, so that the flange 13 is convenient to communicate with an external pipeline.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A multi-channel swivel joint, characterized in that: including the rotating ring, quiet ring and a plurality of seal assembly, rotating ring one end suit is in the quiet ring, the rotating ring lateral wall passes through sealed bearing and quiet ring inside wall butt, the rotating ring is inside to be provided with a plurality of passageways, the rotating ring lateral wall is provided with a plurality of ring runner, a plurality of the ring runner with the passageway is one-to-one intercommunication, it is provided with the inlet opening to correspond the ring runner on the quiet ring, the inlet opening is close to ring runner one side and is provided with fretwork portion, a plurality of seal assembly one-to-one installs in the fretwork portion, seal assembly includes the spring, quiet sealing washer and movable seal ring, the spring cover is established on the rotating ring, and the spring both ends are connected with two movable seal rings, quiet sealing washer joint is between fretwork portion inner wall and movable seal ring, movable seal ring deviates from spring one side and is the wedge, quiet sealing ring corresponds and is provided with the breach.

2. A multi-channel rotary joint as claimed in claim 1, wherein: the static sealing ring and the dynamic sealing ring are made of fluororubber or polytetrafluoroethylene.

3. A multi-channel rotary joint as claimed in claim 1, wherein: one end of the movable ring is provided with a flange plate, and the flange plate is provided with a plurality of bolt holes.