CN205896495U - High -speed rotary joint of middling pressure - Google Patents

High -speed rotary joint of middling pressure Download PDF

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Publication number
CN205896495U
CN205896495U CN201620755870.4U CN201620755870U CN205896495U CN 205896495 U CN205896495 U CN 205896495U CN 201620755870 U CN201620755870 U CN 201620755870U CN 205896495 U CN205896495 U CN 205896495U
Authority
CN
China
Prior art keywords
housing
ring
bearing
rotary shaft
fixedly connected
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201620755870.4U
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Chinese (zh)
Inventor
盖延峰
邵明秋
何士芬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TENGZHOU TIANXUAN ROTARY UNION CO Ltd
Original Assignee
TENGZHOU TIANXUAN ROTARY UNION CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TENGZHOU TIANXUAN ROTARY UNION CO Ltd filed Critical TENGZHOU TIANXUAN ROTARY UNION CO Ltd
Priority to CN201620755870.4U priority Critical patent/CN205896495U/en
Application granted granted Critical
Publication of CN205896495U publication Critical patent/CN205896495U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a high -speed rotary joint of middling pressure, which comprises a housin, the one end fixedly connected with end cover of casing, the inboard clearance fit of end cover is connected with the static seal ring, relative swivelling joint has the rotation axis in the casing, shells inner wall is connected with sealed spacer, the rotation axis passes in the middle of sealed spacer, sealed spacer has the boss to the place side processing of static seal ring, this boss side is equipped with the ring channel, swing joint has piston ring alive in this ring channel, the outer fixedly connected with seal cover of rotation axis between sealed spacer and the rotation axis inner end face, the seal cover is equipped with the recess in the side of sealed spacer, the seal cover inside wall at this recess place and the piston ring's that lives the airtight stationary contact of external diameter, the piston ring that lives forms labyrinth seals between seal cover and sealed spacer, the design has two threaded connection mouths on the outer wall of casing, and this threaded connection mouth is located the airtight contact surface department of inner end face of inner end face with the static seal ring of rotation axis.

Description

Middle pressure high-speed joint
Technical field
The utility model is related to a kind of swivel joint, more particularly, to presses high-speed joint in one kind.
Background technology
On pneumatic and hydraulic test, numerical control machining center, the often demand of oriented high-speed rotating equipment pumped (conveying) medium, but It is, due to, limited by current swivel joint rotating speed, therefore not reaching working condition requirement using this swivel joint, thus leading to joint Well damage, replacing frequently, and then waste material resources and financial resources.
Utility model content
The utility model is directed to above-mentioned the deficiencies in the prior art, provides pressure high-speed joint in one kind, can be applied to The operating mode of high-speed rotation, meets the demand to high-speed rotating equipment pumped (conveying) medium.
The technical scheme that the utility model solves above-mentioned technical problem is as follows:
High-speed joint is pressed, including housing, one end of housing is fixedly connected with end cap, and end cap medial gap is joined in one kind Conjunction is connected with stationary seal ring, rotates against and be connected with rotary shaft in housing, the inner end of rotary shaft and the inner end of stationary seal ring It is characterised in that inner walls are connected with sealing spacer, rotary shaft passes through in the middle of sealing spacer close contact, seals spacer It is machined with boss to stationary seal ring place side, this boss side surfaces is designed with cannelure, piston ring is installed in this cannelure, sealing It is fixedly connected with sealing shroud, sealing shroud is towards the lateral layout of sealing spacer outside rotary shaft between spacer and rotary shaft inner end Fluted, the sealing shroud madial wall fixation airtight with the external diameter of piston ring that this groove is located contacts, and piston ring is in sealing shroud and close Form labyrinth seal between packer;The outer wall of housing is provided with two threaded mouths, and this threaded mouth is located at rotary shaft The inner end close contact face of inner end and stationary seal ring at;
Described rotating shaft is fixedly connected with clutch shaft bearing and second bearing, the inner ring of clutch shaft bearing and second bearing It is provided with bearing spacer between inner ring, all leave between the inwall of the outer ring of clutch shaft bearing and the outer ring of second bearing and described housing Gap, between the outer ring of clutch shaft bearing and the inwall of housing, plasticity is filled with the 2nd o shape circle, the outer ring of second bearing and housing Between inwall, plasticity is filled with the 3rd o shape circle;Also gap is left between the lateral wall of described sealing spacer and the inwall of housing, close Between the lateral wall of packer and the inwall of housing, plasticity is filled with the 4th o shape circle;Described end cap inboard is fixedly connected flexible Split pin, described stationary seal ring is designed with the jack corresponding with elastic opening pin, and elastic opening pin is interspersed in jack;End The inboard face of lid is designed with counterbore, is provided with spring, spring inner end top pressure is on stationary seal ring in this counterbore.
According to described middle pressure high-speed joint it is characterised in that the outer ring of described clutch shaft bearing and described housing It is fixedly connected by circlip for hole between inwall, between the inner ring of described second bearing and described rotary shaft, pass through first axle It is fixedly connected with circlip, be fixedly connected with the second circlip for shaft between described sealing shroud and rotary shaft.
According to described middle pressure high-speed joint it is characterised in that plasticity between described stationary seal ring and described end cap It is filled with the 5th o shape circle, described rotary shaft outer end extend out to described hull outside, and rotary shaft outer end is provided with an o shape circle.
According to described middle pressure high-speed joint it is characterised in that described piston ring is " c " type, the quantity of piston ring For 3.
According to described middle pressure high-speed joint it is characterised in that two threaded mouths on described housing are c mouth With d mouth;Described rotary shaft outer end is a mouth, and described end cap outer end is b mouth.
According to described middle pressure high-speed joint it is characterised in that described end cap is bolted with described housing Connect.
According to described middle pressure high-speed joint it is characterised in that being provided with multiple radiating grooves outside described housing, radiating The position of groove is corresponding with the installation site of described clutch shaft bearing and second bearing.
According to described middle pressure high-speed joint it is characterised in that the quantity of described elastic opening pin is 2, described On end cap, the quantity of described counterbore is 3.
In the utility model, this swivel joint machined two threaded mouths on housing 4, i.e. c mouth and d mouth, is Mist of oil inlet and outlet connectors.Friction pair is lubricated by mist of oil, so that the heat that rotational resistance reduces, friction produces is reduced, so that The service life of seal extends, and this structure makes joint safe operation.Sealing shroud and rotary shaft interference fit, sealing shroud, work Plug ring and sealing spacer composition labyrinth seal structure, seal to mist of oil, stop mist of oil leakage, achieve mist of oil to close with this The optimum efficiency of the secondary lubrication of envelope.
Hull outside is machined with radiating groove, so that clutch shaft bearing and second bearing is produced heat and distribute, shell inner hole and first Space between bearing and second bearing carries out plasticity using o shape circle and inlays, and bearing can be made will not to be stuck when running up.
Flexibly, maximum speed can reach 12000 revs/min, the maximum pressure bearing for this swivel joint small volume, rotation For 10mpa, can butt joint in time be cooled down by mist of oil, (temperature is less than 85 can be applied to liquids and gases medium DEG C) conveying, meet the demand to high-speed rotating equipment pumped (conveying) medium.
Brief description
Fig. 1 is structural representation of the present utility model.
In accompanying drawing:
1st, rotary shaft;2nd, an o shape circle;3rd, circlip for hole;4th, housing;5th, the 2nd o shape circle;6th, clutch shaft bearing;7、 Bearing spacer;8th, second bearing;9th, the 3rd o shape circle;10th, the first circlip for shaft;11st, the 4th o shape circle;12nd, seal spacer; 13rd, piston ring;14th, sealing shroud;15th, the second circlip for shaft;16th, stationary seal ring;17th, end cap;18th, elastic opening pin;19、 5th o shape circle;20th, spring;21st, bolt.
Specific embodiment
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example is served only for explaining this practicality New, it is not intended to limit scope of the present utility model.
As shown in figure 1, pressing high-speed joint in one kind, including housing 4, one end of housing 4 is fixedly connected with end cap 17, End cap 17 medial gap is connected with stationary seal ring 16, rotates against and be connected with rotary shaft 1 in housing 4, the inner end of rotary shaft 1 The inner end close contact of face and stationary seal ring 16 simultaneously communicates, and housing 4 inwall is connected with sealing spacer 12, and rotary shaft 1 is from sealing Pass through in the middle of spacer 12, sealing spacer 12 is machined with boss to stationary seal ring 16 place side, and this boss side surfaces is designed with cannelure, Piston ring 13 is installed in this cannelure, is fixedly connected with close outside the rotary shaft 1 between sealing spacer 12 and rotary shaft 1 inner end Big envelope 14, sealing shroud 14 is towards the lateral layout groove of sealing spacer 12, sealing shroud 14 madial wall at this groove place and piston The airtight Elastic Contact of external diameter of ring 13, piston ring 13 forms labyrinth seal between sealing shroud 14 and sealing spacer 12;Housing 4 Two threaded mouths are designed with wall, this threaded mouth is located at the inner end of rotary shaft 1 and the inner end of stationary seal ring 16 At close contact face.
It is fixedly connected with clutch shaft bearing 6 and second bearing 8, the inner ring of clutch shaft bearing 6 and second bearing 8 outside rotary shaft 1 Inner ring between be provided with bearing spacer 7, between the inwall of the outer ring of the outer ring of clutch shaft bearing 6 and second bearing 8 and described housing 4 All leave gap, between the inwall of the outer ring of clutch shaft bearing 6 and housing 4, plasticity is filled with the 2nd o shape circle 5, outside second bearing 8 Between circle and the inwall of housing 4, plasticity is filled with the 3rd o shape circle 9;The inwall of lateral wall and the housing 4 of described sealing spacer 12 it Between also leave gap, between the lateral wall of sealing spacer 12 and the inwall of housing 4, plasticity is filled with the 4th o shape circle 11.
End cap 17 inboard is fixedly connected with elastic opening pin 18, stationary seal ring 16 opens up in respect of with elastic opening pin 18 phase Corresponding jack, elastic opening pin 18 is interspersed in jack, and elastic opening pin 18 plays the effect stoping stationary seal ring 16 rotation; The inboard face of end cap 17 has counterbore, is provided with spring 20, spring 20 inner end top pressure is on stationary seal ring 16 in this counterbore.
It is fixedly connected by circlip for hole 3 between the outer ring of clutch shaft bearing 6 and the inwall of housing 4, second bearing 8 It is fixedly connected by the first circlip for shaft 10 between inner ring and rotary shaft 1, between sealing shroud 14 and rotary shaft, use the second axle It is fixedly connected with circlip 15.
Between stationary seal ring 16 and end cap 17, airtight connection has the 5th o shape circle 19, and rotary shaft 1 outer end extend out to outside housing 4 Portion, rotary shaft 1 outer end is provided with an o shape circle 2.
In the present embodiment, piston ring 13 profile is " c " type, and the quantity of piston ring 13 is 3.Two spiral shells on housing 4 Line connector is c mouth and d mouth;Rotary shaft 1 outer end is a mouth, and end cap 17 outer end is b mouth.It is solid that end cap 17 and housing 4 pass through bolt 21 Fixed connection.It is provided with multiple radiating grooves, the installation site phase of the position of radiating groove and clutch shaft bearing 6 and second bearing 8 outside housing 4 Corresponding.The quantity of elastic opening pin 18 is 2, and on end cap 17, the quantity of counterbore is 3.
The utility model is the unipath swivel joint of a high-speed rotation, and structure is simple, good seal performance, be applied to height The operating mode of speed rotation, rotary shaft 1 is screw thread rotation axle.Clutch shaft bearing 6 and second bearing 8 are angular contact ball bearing.
In the utility model, circlip for hole 3 carries out axially position to the outer ring of clutch shaft bearing 6, makes clutch shaft bearing 6 Outer ring be arranged in housing 4, the gap between clutch shaft bearing 6 outer ring and inner walls is filled by the 2nd o shape circle 5 plasticity, So that not rotating against therebetween, the inner ring of clutch shaft bearing 6 is arranged in rotary shaft 1, follows rotary shaft 1 and rotates together.Axle The inner ring of the inner ring and second bearing 8 that hold 7 clutch shaft bearings 6 of spacer separates formation gap, so that clutch shaft bearing 6 and second bearing 8 each normally use.The inner ring of second bearing 8 is arranged in rotary shaft 1, and carries out axial direction by the first circlip for shaft 10 Fixing, follow rotary shaft 1 and rotate together, the outer installation of second bearing 8 is embedded in housing 4, and filled out by the 3rd o shape circle 9 plasticity Fill the gap between second bearing 8 outer ring and housing 4 inwall, so that not rotating against therebetween.Second bearing 8 outer ring another One side is tightly pressed together with sealing spacer 12, and carries out axially position by the boss of housing 4 inwall.Sealing spacer 12 outer wall Gap and housing 4 between is passed through the 4th o shape circle 11 plastic deformation and is carried out static seal.The boss cannelure of sealing spacer 12 is built-in Have 3 piston rings 13, the external diameter of piston ring 13 contact with the inside diameter elastomeric of the sealing shroud 14 being interference fitted in rotary shaft 1 and Sealing cooperation, forms labyrinth dynamic sealing, for intercepting the leakage of mist of oil.Sealing shroud 14 and rotary shaft 1 pass through the second axle elasticity It is locked that back-up ring 15 carries out axially position.
The bright and clean end face of rotary shaft 1 and the bright and clean end face of stationary seal ring 16 are dynamic sealing pairs.End cap 17 passes through 4 interior hexagonals Bolt 21 is fixed together with housing 4.Stationary seal ring 16 one end is inserted in the endoporus of end cap 17, and its radial clearance passes through the 5th o Shape circle 19 plastic deformation is sealed, and so that medium cannot be leaked.
Two elastic opening pins 18 carry out radial direction rotation stop to stationary seal ring 16, rely on 3 springs being contained in end cap 20 to carry For pressure make the smooth end face of stationary seal ring 16 and the smooth end face of rotary shaft 1 fit tightly sealing, to ensure that rotary shaft 1 exists Leakage is there will not be under the operating mode of high-speed rotation.
For improving service life and the sealing effectiveness of this joint, the utility model is lubricated to sealing surface using mist of oil, The heat that rotational resistance reduces, friction produces is made to reduce, the service life of swivel joint is more guaranteed.Processing on housing 4 Two threaded mouths (screw thread c mouth and screw thread d mouth) are mist of oil inlet and outlet connectors.Screw thread a mouth and screw thread b mouth are the two of same path Individual connection screw thread mouth.
In the utility model, the 2nd o shape circle 5 and the 3rd o shape circle 9 are used for rotation stop, the 4th o shape circle 11 and the 5th o shape circle 19 are used for sealing.During joint work, sealing spacer 12 maintains static, and the rotation of rotary shaft 1 one superhigh speed followed by sealing shroud 14 Turn.

Claims (8)

1. press high-speed joint in one kind, including housing (4), one end of housing (4) is fixedly connected with end cap (17), end cap (17) medial gap is connected with stationary seal ring (16), rotates against and be connected with rotary shaft (1) in housing (4), rotary shaft (1) Inner end and stationary seal ring (16) inner end close contact it is characterised in that housing (4) inwall is connected with sealing spacer (12), rotary shaft (1) passes through in the middle of sealing spacer (12), and sealing spacer (12) is machined with boss in stationary seal ring (16) side, This boss side surfaces is provided with cannelure, this cannelure built with piston ring (13), seal spacer (12) and rotary shaft (1) inner end it Between rotary shaft (1) outside be fixedly connected with sealing shroud (14), sealing shroud (14) towards sealing spacer (12) lateral layout have recessed Groove, sealing shroud (14) the madial wall fixation airtight with the external diameter of piston ring (13) that this groove is located contacts, and piston ring (13) is close Form labyrinth seal between big envelope (14) and sealing spacer (12);The outer wall of housing (4) is provided with two threaded mouths, this spiral shell Line connector is located at the inner end of rotary shaft (1) and the inner end close contact face of stationary seal ring (16);Described rotary shaft (1) Outside is fixedly connected with clutch shaft bearing (6) and second bearing (8), the inner ring of the inner ring of clutch shaft bearing (6) and second bearing (8) it Between be provided with bearing spacer (7), between the inwall of the outer ring of the outer ring of clutch shaft bearing (6) and second bearing (8) and described housing (4) All leave gap, between the inwall of the outer ring of clutch shaft bearing (6) and housing (4), plasticity is filled with the 2nd o shape circle (5), the second axle Hold plasticity between the outer ring of (8) and the inwall of housing (4) and be filled with the 3rd o shape circle (9);The lateral wall of described sealing spacer (12) Also leave gap and the inwall of housing (4) between, plasticity filling between the lateral wall of sealing spacer (12) and the inwall of housing (4) There is the 4th o shape circle (11);Described end cap (17) inboard is fixedly connected with elastic opening pin (18), and described stationary seal ring (16) sets In respect of the jack corresponding with elastic opening pin (18), elastic opening pin (18) is interspersed in jack;End cap (17) inboard face sets In respect of counterbore, it is provided with spring (20) in this counterbore, spring (20) inner end top pressure is on stationary seal ring (16).
2. according to claim 1 middle pressure high-speed joint it is characterised in that the outer ring of described clutch shaft bearing (6) with Be fixedly connected by circlip for hole (3) between the inwall of described housing (4), the inner ring of described second bearing (8) with described It is fixedly connected by the first circlip for shaft (10) between rotary shaft (1), logical between described sealing shroud (14) and rotary shaft (1) Cross the second circlip for shaft (15) to be fixedly connected.
3. middle pressure high-speed joint according to claim 2 is it is characterised in that described stationary seal ring (16) and described end Between lid (17), plasticity is filled with the 5th o shape circle (19), and described rotary shaft (1) outer end extend out to described housing (4) outside, housing (4) outside rotary shaft (1) outer end is provided with o shape circle (2).
4. middle pressure high-speed joint according to claim 3 is it is characterised in that described piston ring (13) profile is " c " Type, the quantity of piston ring (13) is 3.
5. middle pressure high-speed joint according to claim 4 is it is characterised in that two screw threads on described housing (4) Connector is c mouth and d mouth;Described rotary shaft (1) outer end is a mouth, and described end cap (17) outer end is b mouth.
6. middle pressure high-speed joint according to claim 5 is it is characterised in that described end cap (17) and described housing (4) it is fixedly connected by bolt (21).
7. middle pressure high-speed joint according to claim 6 is it is characterised in that be provided with multiple outside described housing (4) Radiating groove, the position of radiating groove is corresponding with the installation site of described clutch shaft bearing (6) and second bearing (8).
8. middle pressure high-speed joint according to claim 7 is it is characterised in that the quantity of described elastic opening pin (18) For 2, the quantity of the upper described counterbore of described end cap (17) is 3.
CN201620755870.4U 2016-07-19 2016-07-19 High -speed rotary joint of middling pressure Withdrawn - After Issue CN205896495U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620755870.4U CN205896495U (en) 2016-07-19 2016-07-19 High -speed rotary joint of middling pressure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620755870.4U CN205896495U (en) 2016-07-19 2016-07-19 High -speed rotary joint of middling pressure

Publications (1)

Publication Number Publication Date
CN205896495U true CN205896495U (en) 2017-01-18

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ID=57773498

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620755870.4U Withdrawn - After Issue CN205896495U (en) 2016-07-19 2016-07-19 High -speed rotary joint of middling pressure

Country Status (1)

Country Link
CN (1) CN205896495U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105953000A (en) * 2016-07-19 2016-09-21 滕州市天旋旋转接头制造有限公司 Medium-pressure high-speed rotating connector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105953000A (en) * 2016-07-19 2016-09-21 滕州市天旋旋转接头制造有限公司 Medium-pressure high-speed rotating connector
CN105953000B (en) * 2016-07-19 2018-07-31 滕州市天旋旋转接头制造有限公司 Middle pressure high-speed joint

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Legal Events

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned
AV01 Patent right actively abandoned

Granted publication date: 20170118

Effective date of abandoning: 20180731