CN201190857Y - Rotary joint - Google Patents
Rotary joint Download PDFInfo
- Publication number
- CN201190857Y CN201190857Y CN 200820300632 CN200820300632U CN201190857Y CN 201190857 Y CN201190857 Y CN 201190857Y CN 200820300632 CN200820300632 CN 200820300632 CN 200820300632 U CN200820300632 U CN 200820300632U CN 201190857 Y CN201190857 Y CN 201190857Y
- Authority
- CN
- China
- Prior art keywords
- rotation
- solid
- housing
- flotator
- swivel joint
- 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.)
- Expired - Fee Related
Links
- 239000007787 solid Substances 0.000 claims description 66
- 238000001816 cooling Methods 0.000 claims description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000004809 Teflon Substances 0.000 claims description 4
- 229920006362 Teflon® Polymers 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000002826 coolant Substances 0.000 abstract description 6
- 239000000110 cooling liquid Substances 0.000 abstract 2
- 238000009434 installation Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 10
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 238000003754 machining Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Joints Allowing Movement (AREA)
Abstract
The utility model discloses a rotary joint that reliability is high for provide lubricated or coolant to the part that is rotary motion. The rotary joint comprises a shell and a rotating body, wherein a cooling liquid channel of the shell is communicated with a cooling liquid channel of the rotating body, the rotating body rotates relative to the shell by taking a center line of the rotating body as a shaft, and the shell is in contact fit with the spherical surface of the rotating body. Because the shell is in contact fit with the spherical surface of the rotating body, the rotating body can swing relative to the shell in a spherical center within a certain range, and therefore the use reliability of the rotating joint can be guaranteed when the rotating joint has large installation errors.
Description
Technical field
The utility model relates to a kind of swivel joint.
Background technique
Swivel joint is used for providing lubricated or cooling medium to the part that rotates.Existing swivel joint is made of housing and solid of rotation, and housing and solid of rotation communicate with each other and be installed in respectively on the fixed pedestal of equipment and the rotating part that the relative fixed pedestal rotates.The solid of rotation of swivel joint is coaxial and by the rotating part driven rotary with rotating part, and cooling medium flows into the rotating part from swivel joint.Because the housing and the solid of rotation of swivel joint are connected with fixed pedestal and rotating part respectively, but fixed pedestal and rotating part are used to install the fitting surface of swivel joint and process separately and have a machining error, and the time there are assembly error in fixed pedestal and rotating part in assembling, therefore to guarantee swivel joint normal use just need structurally reach the solid of rotation that makes swivel joint and housing permission is a certain amount of each other move radially and swing.Therefore and existing swivel joint can't reach above-mentioned requirements, and it is stuck and twist off or problem that cooling medium leaks to occur solid of rotation in use easily.
The model utility content
Technical problem to be solved in the utility model is: provide a kind of reliability high swivel joint.
Solving the problems of the technologies described above employed technological scheme is: swivel joint, comprise housing and solid of rotation, the cooling passage of housing is connected with the cooling passage of solid of rotation, and solid of rotation serves as that a relative housing rotates with the center line of self, housing and solid of rotation sphere contact matching.
Further be, be provided with flotator in the housing, flotator is connected with housing elasticity, and the cooling passage of housing is communicated with by flotator with the cooling passage of solid of rotation.
Further be that the end face that solid of rotation links to each other with flotator is a sphere.
Further be that the end face that solid of rotation links to each other with flotator is provided with spherical seal ring.
Further be that spherical seal ring adopts carbofrax material to make.
Further be, be provided with spring in the housing, the two ends of spring are connected with flotator with housing respectively.
Further be that in housing, the surface of contact of sliding bearing and solid of rotation is a sphere to the afterbody of solid of rotation by sliding supported condition.
Further be the inwall Spielpassung of sliding bearing and housing.
Further be that the composite material that sliding bearing adopts teflon to fill graphite or copper powder is made.
The beneficial effects of the utility model are: because housing and solid of rotation sphere contact matching, so solid of rotation can be within the specific limits relatively housing swing with sphere centre, thereby can when there is big alignment error in swivel joint, guarantee the reliability that swivel joint uses; Flotator is set housing and solid of rotation are flexibly connected, can improve the sealing between housing and the solid of rotation; The inwall Spielpassung of sliding bearing and housing is so sliding bearing can move radially along housing within the specific limits.
Description of drawings
Fig. 1 is the structural representation of the utility model swivel joint.
Be labeled as among the figure: solid of rotation 1, hole back-up ring 2, copper back-up ring 3, sliding bearing 4, back-up ring 5, spherical seal ring 6, seal ring 7, elastic cylindrical pin 8, O shape circle 9, flotator 10, O shape circle 11, sealing seat 12, spring 13, housing 14, O shape circle 15, sealing nut 16.
Direction shown in the arrow is the flow direction of cooling medium among the figure.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Swivel joint as shown in Figure 1, comprise housing 14 and solid of rotation 1, the cooling passage of housing 14 is connected with the cooling passage of solid of rotation 1, and solid of rotation 1 serves as that a relative housing 14 rotates with the center line of self, housing 14 and solid of rotation 1 sphere contact matching.This swivel joint its solid of rotation 1 in use serves as that axle rotates by the center line that rotating part drives with self, and simultaneously owing to housing 14 and solid of rotation 1 sphere contact matching, so solid of rotation 1 can also be swung with sphere centre within the specific limits.Above-mentioned two kinds of motion modes of realization solid of rotation 1 for convenience can make the afterbody of solid of rotation 1 be bearing in the housing 1 by sliding bearing 4, and sliding bearing 4 is a sphere with the surface of contact of solid of rotation 1.Sliding bearing 4 relative housings 14 are static, and solid of rotation 1 can the center line with himself serve as the axle rotation in sliding bearing 4 both, can swing with sphere centre in sliding bearing 4 again simultaneously.For sliding bearing 4 can be moved radially along housing 14 within the specific limits, the inwall Spielpassung of sliding bearing 4 and housing 1, solid of rotation 1 also can move radially along housing 14 within the specific limits like this, thereby increased the degrees of freedom of solid of rotation 1, made solid of rotation 1 can adapt to bigger alignment error.Wherein, the composite material that sliding bearing 4 can adopt teflon to fill graphite or copper powder is made, and the composite material that teflon is filled graphite or copper powder has the good self lubricity that gets, and can reduce the wearing and tearing of sliding bearing 4 and solid of rotation 1.
The cooling passage of housing 14 is connected with the cooling passage of solid of rotation 1 provides the flow channel of lubricated or cooling medium.Wherein, can be provided with flotator 10 in housing 14, flotator 10 is connected with housing 14 elasticity, and the cooling passage of housing 14 is communicated with by flotator 10 with the cooling passage of solid of rotation 1.Because flotator 10 is that elasticity is connected with housing 14, therefore make that housing 14 and solid of rotation 1 flexibly connect by flotator 10, when solid of rotation 1 swing or solid of rotation 1 when housing 14 moves radially, flotator 10 can be from the corresponding adjustment of action, to guarantee the sealing of connection part between flotator 10 and the solid of rotation 1.In addition, also can be set to sphere with the end face that flotator 10 links to each other by solid of rotation 1, like this solid of rotation 1 relatively flotator 10 reduce the elastic deformation amount of flotator 10 with the sphere centre between solid of rotation 1 and the flotator 10 swing.In addition, for guaranteeing the sealing between flotator 10 and the solid of rotation 1, the end face that solid of rotation 1 links to each other with flotator 10 is provided with spherical seal ring 6, and spherical seal ring 6 also can adopt the good carbofrax material of wear resistance to make.
In addition, be provided with spring 13 in housing 1, the two ends of spring 13 are connected with flotator 10 with housing 1 respectively.As Fig. 1, spring 13 remains compressive state, makes between flotator 10 and the end face that solid of rotation 1 links to each other to keep bigger contact force.
Embodiment
Swivel joint comprises solid of rotation 1, hole back-up ring 2, copper back-up ring 3, sliding bearing 4, back-up ring 5, spherical seal ring 6, seal ring 7, elastic cylindrical pin 8, O shape circle 9, flotator 10, O shape circle 11, sealing seat 12, spring 13, housing 14, O shape circle 15, sealing nut 16.Solid of rotation 1 is a tubular structure, and its head is installed in the rotating part, and does to rotate synchronously, and its afterbody is provided with a circle bulge loop, and the bulge loop surface Machining becomes spherical shape, and the tail end face of solid of rotation 1 is processed into the concave spherical surface shape.Housing 14 is fixed on the fixed pedestal by sealing nut 16.The afterbody of solid of rotation 1 is bearing in the housing 1 by sliding bearing 4, and sliding bearing 4 one end faces and copper back-up ring 3 are slidingly matched, the bulge loop sphere contact matching of relative other end and solid of rotation 1.Copper back-up ring 3 limits its outside motion by the hole with back-up ring 2.Be provided with flotator 10 in the housing 14, an end of flotator 10 is connected with solid of rotation 1, and the other end is communicated with housing 14.Spherical seal ring 6 is installed in the tail end face of solid of rotation 1, and the end face that flotator 10 is connected with solid of rotation 1 is provided with seal ring 7, and spherical seal ring 6 is the plane with the surface of contact of seal ring 7.Spring 13 is in housing 14, and promotion sealing seat 12, flotator 10 compress seal ring 7, and spherical seal ring 6 and seal ring 7 are adjacent to sealing in the axial force lower end surface, forms the rotating ring mechanical seal of compensation automatically.Solid of rotation 1 respectively with sliding bearing 4, spherical seal ring 6 sphere contact matching, the cooperation sphere of two different radiis is concentric, can realize that swivel joint rotating part 1 is that oscillation center is swung within the specific limits with the sphere heart.The inwall Spielpassung of sliding bearing 4 and housing 1, spherical seal ring 6 is the plane with the surface of contact of seal ring 7, and sliding bearing 4 and copper back-up ring 3 be also for plane contact cooperates, so can realize that solid of rotation 1 is along housing 14 slippage radially.
Claims (9)
1. swivel joint, comprise housing (14) and solid of rotation (1), the cooling passage of housing (14) is connected with the cooling passage of solid of rotation (1), solid of rotation (1) serves as that a relative housing (14) rotates with the center line of self, it is characterized in that: housing (14) and solid of rotation (1) sphere contact matching.
2. swivel joint as claimed in claim 1, it is characterized in that: be provided with flotator (10) in the housing (14), flotator (10) is connected with housing (14) elasticity, and the cooling passage of housing (14) is communicated with by flotator (10) with the cooling passage of solid of rotation (1).
3. swivel joint as claimed in claim 2 is characterized in that: the end face that solid of rotation (1) links to each other with flotator (10) is a sphere.
4. swivel joint as claimed in claim 3 is characterized in that: the end face that solid of rotation (1) links to each other with flotator (10) is provided with spherical seal ring (6).
5. swivel joint as claimed in claim 4 is characterized in that: spherical seal ring (6) adopts carbofrax material to make.
6. swivel joint as claimed in claim 2 is characterized in that: be provided with spring (13) in the housing (1), the two ends of spring (13) are connected with flotator (10) with housing (1) respectively.
7. according to any described swivel joint of claim in 1～6, it is characterized in that: the afterbody of solid of rotation (1) is bearing in the housing (1) by sliding bearing (4), and sliding bearing (4) is a sphere with the surface of contact of solid of rotation (1).
8. swivel joint as claimed in claim 7 is characterized in that: the inwall Spielpassung of sliding bearing (4) and housing (1).
9. swivel joint as claimed in claim 7 is characterized in that: the composite material that sliding bearing (4) adopts teflon to fill graphite or copper powder is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820300632 CN201190857Y (en) | 2008-04-25 | 2008-04-25 | Rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820300632 CN201190857Y (en) | 2008-04-25 | 2008-04-25 | Rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201190857Y true CN201190857Y (en) | 2009-02-04 |
Family
ID=40335019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200820300632 Expired - Fee Related CN201190857Y (en) | 2008-04-25 | 2008-04-25 | Rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201190857Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646908A (en) * | 2012-04-01 | 2012-08-22 | 中航光电科技股份有限公司 | Wear-resisting coaxially rotating electric connector |
| CN103322353A (en) * | 2013-04-07 | 2013-09-25 | 无锡市锡斌光电设备有限公司 | Sand grinding rotary connector |
| CN111006001A (en) * | 2019-11-14 | 2020-04-14 | 无锡富瑞德测控仪器股份有限公司 | Floating aligning device for on-line precision measurement |
| CN111689472A (en) * | 2019-03-15 | 2020-09-22 | 欧姆龙健康医疗(中国)有限公司 | Shell structure and electrical apparatus |
-
2008
- 2008-04-25 CN CN 200820300632 patent/CN201190857Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646908A (en) * | 2012-04-01 | 2012-08-22 | 中航光电科技股份有限公司 | Wear-resisting coaxially rotating electric connector |
| CN102646908B (en) * | 2012-04-01 | 2014-10-08 | 中航光电科技股份有限公司 | Wear-resisting coaxially rotating electric connector |
| CN103322353A (en) * | 2013-04-07 | 2013-09-25 | 无锡市锡斌光电设备有限公司 | Sand grinding rotary connector |
| CN111689472A (en) * | 2019-03-15 | 2020-09-22 | 欧姆龙健康医疗(中国)有限公司 | Shell structure and electrical apparatus |
| CN111006001A (en) * | 2019-11-14 | 2020-04-14 | 无锡富瑞德测控仪器股份有限公司 | Floating aligning device for on-line precision measurement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Panyan Scientific & Technical Industry Co., Ltd, Assignor: Pangang Group Panzhihua Iron & Steel Research Institute Co., Ltd. Contract record no.: 2011510000301 Denomination of utility model: Air-controlled rotary joint Granted publication date: 20090204 License type: Exclusive License Record date: 20110926 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090204 Termination date: 20160425 |