CN109578724A - A kind of Multi-channel rotating joint - Google Patents
A kind of Multi-channel rotating joint Download PDFInfo
- Publication number
- CN109578724A CN109578724A CN201811618903.0A CN201811618903A CN109578724A CN 109578724 A CN109578724 A CN 109578724A CN 201811618903 A CN201811618903 A CN 201811618903A CN 109578724 A CN109578724 A CN 109578724A
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- China
- Prior art keywords
- rotary shaft
- installation cavity
- bearing
- hole
- section
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Links
- 238000009434 installation Methods 0.000 claims abstract description 47
- 238000007789 sealing Methods 0.000 claims abstract description 42
- 238000010276 construction Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
- F16L27/087—Joints with radial fluid passages
- F16L27/093—Joints with radial fluid passages of the "banjo" type, i.e. pivoting right-angle couplings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention discloses a kind of Multi-channel rotating joint, including outer housing and rotary shaft, feature is that outer housing includes outer sleeve and rear cover, installation cavity is provided in outer sleeve, rotary shaft is rotatably arranged in installation cavity；It is provided with multiple first sprocket holes in rotary shaft, the first entrance hole matched with the first sprocket hole is provided on the side wall of outer sleeve, the first sprocket hole of corresponding position is connected to form the first transfer passage with the first entrance hole；The second sprocket hole that front and back penetrates through is provided in rotary shaft, the front end face of rear cover is provided with installation cavity, setting is protruded into installation cavity in the rear end of rotary shaft, after cover and be provided with the second entrance hole, second entrance hole is connected to form the second transfer passage with the second sprocket hole, is provided with rotary shaft sealing between the rear end and installation cavity of rotary shaft.Advantage is that structure is simple, at low cost, smaller on the influence of the revolving speed of rotary shaft while ensuring sealing performance, to effectively extend service life.
Description
Technical field
The present invention relates to a kind of rotary joints, more particularly, to a kind of Multi-channel rotating joint.
Background technique
The rotary shaft that rotary joint generally includes an outer housing and is arranged in outer housing, is mainly used for oil circuit or gas
Road is imported into high-speed rotating rotating mechanism, realizes the control and distribution of oil circuit or gas circuit in rotating mechanism.Rotary joint is pressed
Single-channel Rolling connector and Multi-channel rotating joint can be divided into according to the quantity of transfer passage, wherein Multi-channel rotating joint can be used for
Two or more different mediums are imported into high-speed rotating rotary shaft by different channels.Existing multichannel rotation at present
Adapter is arranged multiple sprocket holes along the axial direction of rotary shaft usually in rotary shaft, sets on the side wall of the outer housing of connector
It is equipped with the entrance hole matched with sprocket hole, sprocket hole is connected to form transfer passage with entrance hole cooperation, in order to avoid different Jie
Leakage mixing (realizing the sealing between each transfer passage) occurs during transportation for matter, it will usually in rotary shaft and shell
Multiple rotary oil seals are set between body, for realizing the separation between adjacent transfer passage, however the rotation of so multi-quantity
The setting of oil sealing causes the frictional force between rotary shaft and outer housing larger, greatly reduces what the rotary joint can bear
Maximum speed, simultaneously because the presence of high frictional force is entirely using so that quantity of heat production is big during the work time for the rotary joint
Bulk temperature is high in the process, so that the service life of product is greatly lowered.
Summary of the invention
That technical problem to be solved by the invention is to provide a kind of structures is simple, sealing effect is good and with long service life more
Channel rotary joint.
The technical scheme of the invention to solve the technical problem is:
A kind of Multi-channel rotating joint, including outer housing and rotary shaft, the outer housing include outer sleeve and are sealingly mounted at
The rear cover of the housing tube rear end, be provided with that front and back penetrates through in the outer sleeve for installing the peace of the rotary shaft
It behave affectedly, the front end that the rotary shaft is rotatably arranged in the interior and described rotary shaft of the installation cavity stretches out described
Installation cavity；
Multiple first sprocket holes are provided in the rotary shaft, first sprocket hole is from the front end of the rotary shaft
The blind hole that face is arranged along the direction of the central axis of the rotary shaft, be provided on the side wall of the outer sleeve with it is described
First sprocket hole of the first entrance hole that first sprocket hole matches, corresponding position is connected to first entrance hole
Form the first transfer passage；
Central axial direction in the rotary shaft along the rotary shaft is provided with the second sprocket hole that front and back penetrates through, described
The front end face of rear cover be provided with an installation cavity being connected with the installation cavity, the rear end of the rotary shaft, which is protruded into, to be set
It sets in the installation cavity, the second entrance hole for being provided with and being connected with the installation cavity, institute is covered after described
The second entrance hole stated is connected to form the second transfer passage with second sprocket hole, the rear end of the rotary shaft with it is described
Installation cavity between be provided with rotary shaft sealing.
The rotary shaft includes the section of stretching out set gradually from front to back, construction section and seal section, the section of stretching out
The outer sleeve is stretched out, bearing is installed on the construction section, the inner ring of the bearing is outer with the construction section
Side wall is fixedly connected, and the outer ring of the bearing is fixedly connected with the inner sidewall of the installation cavity, and the seal section protrudes into
Be arranged in the installation cavity, the rotary shaft sealing be arranged in the seal section lateral wall and the installation it is recessed
Between the inner sidewall of chamber.Section of stretching out stretches out installation cavity and is used to be connected with other external components；Construction section is used for installation axle
It holds, realizes that rotary shaft is installed in rotation in installation cavity；Seal section plays inner sealing for installing rotary shaft sealing.
The bearing is that bearing described in two, two is respectively the first axle for being mounted on the front end of the construction section
Hold and be mounted on the second bearing of the construction section rear end.Two bearings, it is ensured that rotary shaft can steadily realize that high speed is revolved
Turn, structure is simple and stablizes, so that using safer.
Multiple first entrance holes are between the first bearing and the second bearing, the installation
Oil sealing is provided between section and the installation cavity, and the first bearing and the institute positioned at front end is arranged in the oil sealing
Between the first entrance hole stated.Rotary shaft sealing not only realizes the sealing between the first transfer passage and the second transfer passage, together
When realize the sealing of entire rotary joint rear end, cooperate the setting of oil sealing, realize the sealing of rotary joint front end so that
The channel rotary joint has preferable leakproofness.
The rotary shaft sealing is that rotary shaft sealing structure described in two, two is identical and is in that mirror symmetry is arranged；It is described
Rotary shaft sealing include coaxial arrangement inner seal ring and outer seal ring, the outer seal ring is arranged in the inner seal ring
Interior, the same side end face of the inner seal ring and the outer seal ring is tightly connected by a connection ring, the external seal
Ring is fixedly connected with the inner sidewall of the installation cavity, the lateral wall sealing paste of the inner seal ring and the seal section
Close connection；The connection ring of rotary shaft sealing described in two is bonded setting.The rotary shaft sealing being arranged using two mirror symmetry fittings,
Structure is simple, further ensures that sealing effect.
Second entrance hole is arranged on the side wall of the rear cover.
Compared with the prior art, the advantages of the present invention are as follows: the multipassage rotary axle envelope is mainly for delivery of two kinds of differences
Medium conveys same medium by the first transfer passage formed between the first entrance hole and the first sprocket hole, passes through second
The second transfer passage formed between entrance hole and the second sprocket hole conveys other another media, at this time since multiple first is defeated
Send the medium conveyed between channel identical, there is no need to let out problem in considering, and the second transfer passage and the first transfer passage it
Between seal isolation only need to by be arranged in rotary shaft and install cavity between rotary shaft sealing can be realized, the sealing used
Number of packages amount is few, and structure is simple, at low cost, smaller on the influence of the revolving speed of rotary shaft while ensuring sealing performance, thus effectively
Extend service life.
Detailed description of the invention
Fig. 1 is schematic cross-sectional view of the invention；
Fig. 2 is the enlarged structure schematic diagram in Fig. 1 at A；
Fig. 3 is the schematic cross-sectional view of outer sleeve in the present invention；
Fig. 4 is the schematic cross-sectional view of rear cover in the present invention.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
As shown in Figures 1 to 4, a kind of Multi-channel rotating joint, including outer housing 1 and rotary shaft 2, outer housing 1 include outer
Sleeve 11 and the rear cover 12 for being sealingly mounted at 11 rear end of outer sleeve, be provided with that front and back penetrates through in outer sleeve 11 for installing rotation
The installation cavity 111 of axis 2, rotary shaft 2 is rotatably arranged in installation cavity 111 and the front end of rotary shaft 2 stretches out installation cavity
111；
Multiple first sprocket holes 21 are provided in rotary shaft 2, the first sprocket hole 21 is the front end face of spin shaft 2 along rotary shaft 2
Central axis direction setting blind hole, be provided with first matched with the first sprocket hole 21 on the side wall of outer sleeve 11 and lead
Enter hole 112, the first sprocket hole 21 of corresponding position is connected to the first entrance hole 112 forms the first transfer passage；
Central axial direction in rotary shaft 2 along rotary shaft 2 is provided with the second sprocket hole 22 that front and back penetrates through, the front end of rear cover 12
Face is provided with an installation cavity 121 being connected with installation cavity 111, and setting is protruded into installation cavity 121 in the rear end of rotary shaft 2
It is interior, the second entrance hole 122 being connected with installation cavity 121, the second entrance hole 122 and the second sprocket hole are provided on rear cover 12
22 connections form the second transfer passage, are provided with rotary shaft sealing 3 between the rear end and installation cavity 121 of rotary shaft 2.
In this particular embodiment, rotary shaft 2 includes the section of stretching out 23 set gradually from front to back, construction section 24 and sealing
Section 25, section of stretching out 23 stretch out outer sleeve 11, and bearing is equipped on construction section 24, and the inner ring of bearing and the lateral wall of construction section 24 are solid
Fixed connection, the outer ring of bearing are fixedly connected with the inner sidewall of installation cavity 111, and seal section 25 protrudes into setting in installation cavity 121,
Rotary shaft sealing 3 is arranged between the lateral wall of seal section 25 and the inner sidewall of installation cavity 121.
In this particular embodiment, bearing is two, and two bearings are respectively mounted on the first of the front end of construction section 24
Bearing 4 and the second bearing 5 for being mounted on 24 rear end of construction section.Two bearings, it is ensured that rotary shaft 2 can steadily realize that high speed is revolved
Turn, structure is simple and stablizes, so that using safer.
In this particular embodiment, multiple first entrance holes 112 are between first bearing 4 and second bearing 5, construction section
Oil sealing 6 is provided between 24 and installation cavity 111, first bearing 4 and the first entrance hole 112 positioned at front end is arranged in oil sealing 6
Between.
In this particular embodiment, rotary shaft sealing 3 is two, and two 3 structures of rotary shaft sealing are identical and set in mirror symmetry
It sets；Rotary shaft sealing 3 includes the inner seal ring 31 and outer seal ring 32 of coaxial arrangement, and inner seal ring 31 is arranged in outer seal ring 32
Interior, the same side end face of inner seal ring 31 and outer seal ring 32 is tightly connected by a connection ring 33, and outer seal ring 32 and installation are recessed
The inner sidewall of chamber 121 is fixedly connected, and inner seal ring 31 is connect with the lateral wall palette of seal section 25；Two rotary shaft sealings 3
Connection ring 33 be bonded setting.
In this particular embodiment, the second entrance hole 122 is arranged on the side wall of rear cover 12.
Claims (6)
1. a kind of Multi-channel rotating joint, including outer housing and rotary shaft, it is characterised in that the outer housing includes outer sleeve
With the rear cover for being sealingly mounted at the housing tube rear end, be provided in the outer sleeve front and back penetrate through it is described for installing
Rotary shaft installation cavity, the rotary shaft is rotatably arranged in the installation cavity and the front end of the rotary shaft
Head stretches out the installation cavity；
Multiple first sprocket holes are provided in the rotary shaft, first sprocket hole is from the front end of the rotary shaft
The blind hole that face is arranged along the direction of the central axis of the rotary shaft, be provided on the side wall of the outer sleeve with it is described
First sprocket hole of the first entrance hole that first sprocket hole matches, corresponding position is connected to first entrance hole
Form the first transfer passage；
Central axial direction in the rotary shaft along the rotary shaft is provided with the second sprocket hole that front and back penetrates through, described
The front end face of rear cover be provided with an installation cavity being connected with the installation cavity, the rear end of the rotary shaft, which is protruded into, to be set
It sets in the installation cavity, the second entrance hole for being provided with and being connected with the installation cavity, institute is covered after described
The second entrance hole stated is connected to form the second transfer passage with second sprocket hole, the rear end of the rotary shaft with it is described
Installation cavity between be provided with rotary shaft sealing.
2. a kind of Multi-channel rotating joint as described in claim 1, it is characterised in that the rotary shaft includes from front to back
Section of stretching out, construction section and the seal section set gradually, the section of stretching out are stretched out the outer sleeve, are pacified on the construction section
Equipped with bearing, the inner ring of the bearing is fixedly connected with the lateral wall of the construction section, the outer ring of the bearing and institute
The inner sidewall for the installation cavity stated is fixedly connected, and the seal section, which protrudes into, to be arranged in the installation cavity, the rotation
Axle envelope is arranged between the lateral wall of the seal section and the inner sidewall of the installation cavity.
3. a kind of Multi-channel rotating joint as claimed in claim 2, it is characterised in that the bearing is two, described in two
Bearing be respectively to be mounted on the first bearing of the front end of the construction section and be mounted on the second of the construction section rear end
Bearing.
4. a kind of Multi-channel rotating joint as claimed in claim 3, it is characterised in that multiple first entrance holes are located at
Between the first bearing and the second bearing, it is provided with oil sealing between the construction section and the installation cavity,
The oil sealing is arranged in the first bearing and between first entrance hole of front end.
5. a kind of Multi-channel rotating joint as claimed in claim 2, it is characterised in that the rotary shaft sealing is two, two
The rotary shaft sealing structure is identical and is arranged in mirror symmetry；The rotary shaft sealing include coaxial arrangement inner seal ring and
Outer seal ring, the inner seal ring are arranged in the outer seal ring, the inner seal ring and the outer seal ring
Same side end face pass through a connection ring and be tightly connected, the inner sidewall of the outer seal ring and the described installation cavity is fixed to be connected
It connects, the inner seal ring is connect with the lateral wall palette of the seal section；The connection of rotary shaft sealing described in two
Ring fitting setting.
6. a kind of Multi-channel rotating joint as described in claim 1, it is characterised in that second entrance hole is arranged in institute
On the side wall for the rear cover stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811618903.0A CN109578724B (en) | 2018-12-28 | 2018-12-28 | Multichannel rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811618903.0A CN109578724B (en) | 2018-12-28 | 2018-12-28 | Multichannel rotary joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109578724A true CN109578724A (en) | 2019-04-05 |
| CN109578724B CN109578724B (en) | 2024-02-09 |
Family
ID=65933224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811618903.0A Active CN109578724B (en) | 2018-12-28 | 2018-12-28 | Multichannel rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109578724B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151638A (en) * | 2021-10-18 | 2022-03-08 | 太原重工股份有限公司 | Coupling device with medium connecting and disconnecting function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2206399Y (en) * | 1994-12-01 | 1995-08-30 | 佛山市北江机械厂 | Sealing rotating joint |
| JP2014114848A (en) * | 2012-12-07 | 2014-06-26 | Nippon Pillar Packing Co Ltd | Rotary joint |
| CN204942836U (en) * | 2015-04-30 | 2016-01-06 | 唐魁 | Multi-functional Multi-path rotary joint |
| CN207479623U (en) * | 2017-10-30 | 2018-06-12 | 宁波海天精工股份有限公司 | A kind of Pneumatic rotary connector |
| CN209540268U (en) * | 2018-12-28 | 2019-10-25 | 宁波迈途机械科技有限公司 | A kind of Multi-channel rotating joint |
-
2018
- 2018-12-28 CN CN201811618903.0A patent/CN109578724B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2206399Y (en) * | 1994-12-01 | 1995-08-30 | 佛山市北江机械厂 | Sealing rotating joint |
| JP2014114848A (en) * | 2012-12-07 | 2014-06-26 | Nippon Pillar Packing Co Ltd | Rotary joint |
| CN204942836U (en) * | 2015-04-30 | 2016-01-06 | 唐魁 | Multi-functional Multi-path rotary joint |
| CN207479623U (en) * | 2017-10-30 | 2018-06-12 | 宁波海天精工股份有限公司 | A kind of Pneumatic rotary connector |
| CN209540268U (en) * | 2018-12-28 | 2019-10-25 | 宁波迈途机械科技有限公司 | A kind of Multi-channel rotating joint |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151638A (en) * | 2021-10-18 | 2022-03-08 | 太原重工股份有限公司 | Coupling device with medium connecting and disconnecting function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109578724B (en) | 2024-02-09 |
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