CN203847864U - Split rotating joint universal to cold and hot media - Google Patents
Split rotating joint universal to cold and hot media Download PDFInfo
- Publication number
- CN203847864U CN203847864U CN201420192364.XU CN201420192364U CN203847864U CN 203847864 U CN203847864 U CN 203847864U CN 201420192364 U CN201420192364 U CN 201420192364U CN 203847864 U CN203847864 U CN 203847864U
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- CN
- China
- Prior art keywords
- tail
- outer tube
- hood
- housing
- ring
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims description 10
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 9
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 7
- 229920006351 engineering plastic Polymers 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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- Joints Allowing Movement (AREA)
Abstract
The utility model relates to a split rotating joint universal to cold and hot media. The split rotating joint comprises an outer tube, a housing and a fixed ring. The split rotating joint is characterized by further comprising a wave spring, a stop in, a tail cap, and an elastic element; the wave spring is disposed between the bottom of an outer tube support bearing unit and the bottom of the housing; the large end of the tail cap is fixedly connected with the bottom end of the housing; the tail cap is provided with a connection hole; the surface of the large end of the tail cap is provided with a pin hole; the stop pin is disposed in the pin hole; the elastic element and the fixed ring are disposed in a counter bore arranged in the large end of the tail cap; the elastic element abuts to the fixed ring so that the end face of the fixed ring is in tight fit with the end face of the outer tube; the fixed ring is provided with a notch fastened to the stop pin arranged at the corresponding position of the tail cap. The split rotating joint is novel and reasonable in structural design; the housing is in a split assembled structure; machining is easy, and precision is high; the split structure is convenient to demount and convenient to maintain; during maintenance, quick-wearing parts are replaced just by removing the tail cap without replacing the whole, and maintenance and application costs are reduced. The wave spring is added, displacements of the structural parts of the rotating joint caused by changes in temperature of transmission medium during use are compensated, the rotating joint is stable in sealing performance, and sealing failure caused by thermal expansion of the structural parts of the rotating joint caused by changes in the temperature is avoided.
Description
Technical field
The utility model relates to a kind of swivel joint, and specifically a kind of dynamic seal apparatus of rotating equipment that is input to from static pipeline for flowing medium, belongs to mechanical sealing technology field.
Background technique
Swivel joint is that flowing medium (liquid, oil, gas etc.) is input to the dynamic seal apparatus rotating equipment from static pipeline, is to solve run, drip, leak energy saving, and protection of the environment, requisite mechanical seal basis critical component improves working conditions.Such swivel joint that prior art is produced can only adapt to single cryogenic media or high temperature media, can not avoid rotary joint structure part and because temperature variation produces distortion, cause seal failure, and such swivel joint shell that prior art produces is single integrated type, machining accuracy is difficult to ensure card, dismounting is inconvenient, maintenance difficult and cost are high, and adaptation condition is poor, and working life is short.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of universal swivel joint of detachable cold thermal medium is provided, and its structural design is new reasonable, and housing is split fabricated construction, easy processing, and precision is high.Split type structure easy disassembly, easy to maintenance, change easily damaged parts after only need dismantling tail-hood during maintenance, without integral body, change, reduced maintenance and use cost.By having increased wavy spring between the outer tube support bearing assembly bottom surface at swivel joint and housing bottom, compensation swivel joint in use structural member is subject to the displacement that transmission medium temperature variation produces, make swivel joint sealing steadily, avoid the structural member in swivel joint to expand with heat and contract with cold and cause seal failure because of temperature variation, extended the life-span of swivel joint.
The technological scheme providing according to the utility model: a kind of universal swivel joint of detachable cold thermal medium, comprise outer tube, housing and stationary ring, outer tube is arranged in housing by the supporting of outer tube support bearing assembly, block by shaft block ring outer tube support bearing assembly inner side, and end cap limitation locking is passed through in housing in outer tube support bearing assembly outside; It is characterized in that: described swivel joint also comprises wavy spring, spline pin, tail-hood and elastic element, described wavy spring is arranged between outer tube support bearing assembly bottom surface and housing bottom; The large end of described tail-hood is fixedly connected with housing bottom, and tail-hood is provided with attachment hole, and the large end end face of tail-hood is provided with pin-and-hole, and spline pin is housed in pin-and-hole; Described stationary ring is loaded in the counterbore of the large end of tail-hood, and described elastic element is loaded between tail-hood and stationary ring, and stationary ring is pressed on elastic element top, makes stationary ring end face and outer tube end face snug fit, has corresponding notch to be stuck on the spline pin of corresponding position on tail-hood on stationary ring.
As further improvement of the utility model, described attachment hole is positioned on tail-hood sidewall, and described tail-hood small end center is provided with axial hole, and tail-hood small end periphery is provided with outside thread, and tail-hood small end is by outside thread connecting bend.
As further improvement of the utility model, described outer tube support bearing assembly comprises two block bearings and a spacer, spacer is contained between two block bearings, the outer ring of outside block bearing is by end cap limitation locking, the inner ring of outside block bearing is spacing by the step on outer tube, the inner ring of inner side block bearing blocks by shaft block ring, and described wavy spring is arranged between the bottom surface, outer ring and housing bottom of medial support bearing.
As further improvement of the utility model, the position on described housing between corresponding two block bearings is drilled with screw, and oil nozzle is housed in screw.
As further improvement of the utility model, described stationary ring outer peripheral surface is provided with annular seal groove, and O type circle is housed in annular seal groove.
As further improvement of the utility model, described elastic element comprises at least one little spring.
As further improvement of the utility model, described stationary ring is unitary piece of metal, or by metal seat and engineering plastic materials and parts, adopting seal ring seal to inlay connects to form.
As further improvement of the utility model, described outer tube is unitary piece of metal, or by metal seat and engineering plastic materials and parts, adopting seal ring seal to inlay connects to form.
compared with prior art, tool has the following advantages the utility model:
(1) the utility model structural design is new reasonable, by having increased wavy spring between the outer tube support bearing assembly bottom surface at swivel joint and housing bottom, compensation swivel joint in use structural member is subject to the displacement that transmission medium temperature variation produces, sealing steadily, avoid the structural member in swivel joint to expand with heat and contract with cold and cause seal failure because of temperature variation, extended the life-span of swivel joint.
(2) spring structure that plays compensate for displacement effect in the utility model is comprised of an elastic element and wavy spring; Therefore on the one hand, wavy spring is not contained in the circulation passage of flowing medium, does not contact circulation medium, and not corrosion-vulnerable and distortion extended working life of sealing compensation spring; On the other hand, elastic element is less than the big spring volume in existing spring structure, and its same bore flow effect to hot and cold medium is less, has improved the efficiency of cold and hot exchange.
(3) the utility model beautiful shape, housing is split fabricated construction, be easy to standardization, seriation, generalization, easy processing, precision is high, assembling and easy to maintenance, during maintenance, only need change easily damaged parts, without integral body, change, for the stationary ring of rapid wear, the flexible pipe that only need pull down tail-hood and connection user is just replaceable, has reduced maintenance and use cost.
(4) the utility model is easy to use, and can need to change according to user's operating mode, when user only needs single-pass joint, as long as the elbow of tail-hood small end is changed into interior hexagonal, stops up.As needs flange-type connects, as long as use outer tube instead flange-type outer tube, and mix flange, half point ring and sealing gasket.
Accompanying drawing explanation
fig. 1 is the utility model embodiment's structural representation.
Embodiment
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
As shown in the figure: the universal swivel joint of the detachable cold thermal medium in embodiment is mainly comprised of component such as outer tube 1, oil nozzle 3, housing 2, wavy spring 4, spline pin 5, O type circle 6, screw 7, tail-hood 8, stationary ring 9, elastic element 10, elbow 11, shaft block ring 12, block bearing 13, spacer 14 and end caps 15.
As shown in Figure 1, outer tube 1 is arranged in housing 2 by the supporting of outer tube support bearing assembly, and block by shaft block ring 12 outer tube support bearing assembly inner side, and end cap 15 limitation lockings are passed through in housing 2 in outer tube support bearing assembly outside; Described wavy spring 4 is arranged between outer tube support bearing assembly bottom surface and housing 2 bottoms; The large end of described tail-hood 8 is fixedly connected with housing 2 bottoms by screw 7, and tail-hood 8 is provided with attachment hole 8a, and the large end end face of tail-hood 8 is provided with pin-and-hole, and spline pin 5 is housed in pin-and-hole; Described elastic element 10 and stationary ring 9 are loaded in the counterbore 8b of tail-hood 8 large ends, elastic element 10 is a little spring, stationary ring 9 is pressed on elastic element 10 tops, makes stationary ring 9 end faces and outer tube 1 end face snug fit, has corresponding notch to be stuck on the spline pin 5 of corresponding position on tail-hood 8 on stationary ring 9.
As shown in Figure 1, in the utility model embodiment, described attachment hole 8a is positioned on tail-hood 8 sidewalls, and attachment hole 8a is interior threaded hole; Described tail-hood 8 small end centers are provided with axial hole 8c, and tail-hood 8 small end peripheries are provided with outside thread, and tail-hood 8 small ends are by outside thread connecting bend 11.
As shown in Figure 1, in the utility model embodiment, described outer tube support bearing assembly comprises two block bearings 13 and a spacer 14, spacer 14 is contained between two block bearings 13, the outer ring of outside block bearing 13 is by end cap 15 limitation lockings, the inner ring of outside block bearing 13 is spacing by the step on outer tube 1, and the inner ring of inner side block bearing 13 blocks by shaft block ring 12, and described wavy spring 4 is arranged between the bottom surface, outer ring and housing 2 bottoms of medial support bearing.In addition, the position on described housing 2 between corresponding two block bearings 13 is drilled with screw, and oil nozzle 3 is housed in screw, can pass through oil nozzle 3 charging-up lubricant oils like this, makes can remain smooth rotation between outer tube 1 and housing 2.
As shown in Figure 1, in the utility model embodiment, in order further to improve the sealability between stationary ring 9 and housing 2, described stationary ring 9 outer peripheral surfaces are provided with annular seal groove, and O type circle 6 is housed in annular seal groove.
In the utility model, described stationary ring 9 and outer tube 1 can be unitary piece of metal, can be also by metal seat and engineering plastic materials and parts, to adopt seal ring seal to inlay to connect to form.
During concrete assembling, first a block bearing 13 is loaded on outer tube 1, then puts spacer 14, be loaded on another block bearing 13, load onto shaft block ring 12; Wavy spring 4 is loaded in housing 2 bottom stage, then outer tube 1 assembly parts that installs outer tube support bearing assembly is packed in housing 2, load onto end cap 15 and be screwed, oil nozzle 3 is loaded on to the screw place on housing 2; Spline pin 5 packs in the pin-and-hole on the large end end face of tail-hood 8 and snaps in the corresponding notch on stationary ring 9; First elastic element 10 is packed in the counterbore 8b of tail-hood 8 large ends, then in the annular seal groove on stationary ring 9 excircles, pack O type circle 6 into, again stationary ring 9 assembly parties that install O type circle 6 are loaded in the counterbore 8b of tail-hood 8 large ends, with one group of screw 7, tail-hood 8 and housing 2 are fastenedly connected and are integrated; Elbow 11 is connected with the outside thread of tail-hood 8 small end peripheries by the internal thread of its one end, and the attachment hole 8a on the interior threaded hole 11a of elbow 11 the other ends and tail-hood 8 sidewalls can be respectively and user's connection by metal hose, and outer tube 1 is connected with user's running shaft.
Claims (8)
1. the universal swivel joint of a detachable cold thermal medium, comprise outer tube (1), housing (2) and stationary ring (9), outer tube (1) is supported and is arranged in housing (2) by outer tube support bearing assembly, block by shaft block ring (12) outer tube support bearing assembly inner side, and end cap (15) limitation locking is passed through in housing (2) in outer tube support bearing assembly outside; It is characterized in that: described swivel joint also comprises wavy spring (4), spline pin (5), tail-hood (8) and elastic element (10), described wavy spring (4) is arranged between outer tube support bearing assembly bottom surface and housing (2) bottom; The large end of described tail-hood (8) is fixedly connected with housing (2) bottom, and tail-hood (8) is provided with attachment hole (8a), and tail-hood (8) greatly end face is provided with pin-and-hole, and spline pin (5) is housed in pin-and-hole; Described stationary ring (9) is loaded in the counterbore (8b) of the large end of tail-hood (8), described elastic element (10) is loaded between tail-hood (8) and stationary ring (9), stationary ring (9) is pressed on elastic element (10) top, make stationary ring (9) end face and outer tube (1) end face snug fit, on stationary ring (9), have corresponding notch to be stuck on the spline pin (5) of the upper corresponding position of tail-hood (8).
2. the universal swivel joint of detachable cold thermal medium as claimed in claim 1, it is characterized in that: described attachment hole (8a) is positioned on tail-hood (8) sidewall, described tail-hood (8) small end center is provided with axial hole (8c), tail-hood (8) small end periphery is provided with outside thread, and tail-hood (8) small end is by outside thread connecting bend (11).
3. the universal swivel joint of detachable cold thermal medium as claimed in claim 1, it is characterized in that: described outer tube support bearing assembly comprises two block bearings (13) and a spacer (14), spacer (14) is contained between two block bearings (13), the outer ring of outside block bearing (13) is by end cap (15) limitation locking, the inner ring of outside block bearing (13) is spacing by the step on outer tube (1), the inner ring of inner side block bearing (13) blocks by shaft block ring (12), described wavy spring (4) is arranged between the bottom surface, outer ring and housing (2) bottom of medial support bearing.
4. the universal swivel joint of detachable cold thermal medium as claimed in claim 3, is characterized in that: the position between upper corresponding two block bearings of described housing (2) (13) is drilled with screw, and oil nozzle (3) is housed in screw.
5. the universal swivel joint of detachable cold thermal medium as claimed in claim 1, is characterized in that: described stationary ring (9) outer peripheral surface is provided with annular seal groove, and O type circle (6) is housed in annular seal groove.
6. the universal swivel joint of detachable cold thermal medium as claimed in claim 1, is characterized in that: described elastic element (10) comprises at least one little spring.
7. the universal swivel joint of detachable cold thermal medium as claimed in claim 1, is characterized in that: described stationary ring (9) is integral seal, or by metal seat and Sealing, adopting seal ring seal to inlay connects to form.
8. the universal swivel joint of detachable cold thermal medium as claimed in claim 1, is characterized in that: described outer tube (1) is unitary piece of metal, or by metal seat and Sealing, adopting seal ring seal to inlay connects to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420192364.XU CN203847864U (en) | 2014-04-18 | 2014-04-18 | Split rotating joint universal to cold and hot media |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420192364.XU CN203847864U (en) | 2014-04-18 | 2014-04-18 | Split rotating joint universal to cold and hot media |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203847864U true CN203847864U (en) | 2014-09-24 |
Family
ID=51560882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420192364.XU Expired - Lifetime CN203847864U (en) | 2014-04-18 | 2014-04-18 | Split rotating joint universal to cold and hot media |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203847864U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135111A (en) * | 2015-10-13 | 2015-12-09 | 福建省闽旋科技股份有限公司 | Rotary joint applicable to cold and hot media |
| CN112197087A (en) * | 2020-10-09 | 2021-01-08 | 江苏恒昌波纹管有限公司 | Flexibly-rotating and high-pressure-resistant rotary compensator |
-
2014
- 2014-04-18 CN CN201420192364.XU patent/CN203847864U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135111A (en) * | 2015-10-13 | 2015-12-09 | 福建省闽旋科技股份有限公司 | Rotary joint applicable to cold and hot media |
| CN105135111B (en) * | 2015-10-13 | 2017-11-07 | 福建省闽旋科技股份有限公司 | A kind of swivel joint for adapting to cold and hot medium |
| CN112197087A (en) * | 2020-10-09 | 2021-01-08 | 江苏恒昌波纹管有限公司 | Flexibly-rotating and high-pressure-resistant rotary compensator |
| CN112197087B (en) * | 2020-10-09 | 2022-03-22 | 江苏恒昌波纹管有限公司 | Flexibly-rotating and high-pressure-resistant rotary compensator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140924 |
|
| CX01 | Expiry of patent term |