CN201287137Y - Improved rotary joint for aluminum cold-strip mill rotation oil-cylinder - Google Patents
Improved rotary joint for aluminum cold-strip mill rotation oil-cylinder Download PDFInfo
- Publication number
- CN201287137Y CN201287137Y CNU2008202208019U CN200820220801U CN201287137Y CN 201287137 Y CN201287137 Y CN 201287137Y CN U2008202208019 U CNU2008202208019 U CN U2008202208019U CN 200820220801 U CN200820220801 U CN 200820220801U CN 201287137 Y CN201287137 Y CN 201287137Y
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- Prior art keywords
- shaft
- rotary joint
- aluminum strip
- rolling mill
- swivel joint
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- 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
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Abstract
A rotary joint used in the rotating oil cylinder of an aluminum strip cold rolling mill is provided with an improved structure, belongs to the technical field of aluminum strip cold rolling mills, wherein, the rotary joint structure comprises a rotary joint body; the sealing shaft (2), which is arranged on one side of the joint body (4) of a distributing shaft (1), is lengthened in the axial direction by 8 to 12cm; and the lengthened section of the sealing shaft (2) is in clearance fit with the inner wall of the joint body (4). By lengthening the sealing section between the shaft at the non-bearing end and a sleeve, and improving the clearance between a core shaft and a sleeve, the utility model has the advantage that a beneficial continuous oil film is formed between the core shaft and the sleeve; and the continuous oil film is appropriate, so that not only the leakage of oil is avoided, but also the friction force can not increases or the running effect can not be influenced.
Description
Technical field
The utility model belongs to aluminum strip cold-rolling mill technical field, relates in particular to a kind of aluminum strip cold-rolling mill angling cylinder swivel joint that improves structure.
Background technology
The swivel joint of aluminum strip cold-rolling mill angling cylinder is as one of primary structure of aluminum strip cold-rolling mill, require swivel joint under the pressure and speed that constantly change, keep good sealing effectiveness and good movement effects, and require to have reliable, stable performance; But at present used aluminium strip rolling mill swivel joint is wasted a large amount of lubricating oil, and has been polluted environment because design defect so non-bearing end oil leaks seriously, has influenced ordinary production; Through our observation analysis discovery repeatedly, leak oil and cause by following two aspects;
1, the sealing at non-bearing end only depends on mandrel and the chamfering that puts to guarantee sealing, does not reach sealing effectiveness;
2, the gap between mandrel and the cover is 0.5mm, obviously is excessive, belongs to another reason place of causing seepage.
In view of the foregoing, even the swivel joint of present aluminum strip cold-rolling mill angling cylinder is provided with rubber ring or other encapsulating method also can't solve or be difficult to guarantee good sealing effectiveness and desirable service life at mandrel with putting at all.
Summary of the invention
In order to overcome the deficiency in the background technology, the utility model discloses a kind of aluminum strip cold-rolling mill angling cylinder swivel joint that improves structure; The aluminum strip cold-rolling mill angling cylinder of this improvement structure passes through in the axle of non-bearing end and a length of overlapping section increase seal section with swivel joint, and improve the gap between mandrel and the cover, can make between mandrel and the cover and form useful continuous oil film, suitable continuous oil film, neither can leak, also can not increase frictional force or influence running effect.
The utility model realizes that the concrete structure content of sealing is:
A kind of aluminum strip cold-rolling mill angling cylinder swivel joint that improves structure, described rotary joint structure comprises the swivel joint body, be arranged on the axial lengthening of the seal shaft 8～12mm of distributing shaft fittings body one side, the inwall matched in clearance of described seal shaft lengthening section and fittings body.
The aluminum strip cold-rolling mill angling cylinder swivel joint of described improvement structure, the inwall gap of the lengthening section of seal shaft and fittings body is 0.02～0.025mm.
Because adopt technique scheme, the beneficial effects of the utility model are:
This aluminum strip cold-rolling mill angling cylinder that improves structure increases 8-12mm long seal section by the axle at non-bearing end with the cover section with swivel joint, can improve the sealing property between mandrel and the cover so greatly; And improve the gap between mandrel and the cover, change the gap of former 0.5mm into 0.02～0.025mm; After experiment showed, that repeatedly this gap is more reasonable, excesssive gap or too small all is difficult for forming useful continuous oil film between mandrel and cover by above-mentioned improvement, and suitably continuous oil film neither can leak, and also can not increase frictional force or influence running effect.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Among the figure; 1, distributing shaft; 2, seal shaft; 3, oil circuit; 4, fittings body; 5, insert oil circuit.
The specific embodiment
With reference to the following examples, can explain the utility model in more detail; But the utility model is not limited to these embodiment.
A kind of aluminum strip cold-rolling mill angling cylinder swivel joint that improves structure in Fig. 1, also be the oil circuit distributor, known aluminum strip cold-rolling mill is in cold-rolled process, because the aluminum strip temperature that is rolled is too high, need continual the cold-rolling mill milling roller be lowered the temperature, so that preventing the milling roller that occurs owing to temperature is too high is out of shape, swivel joint is the only way which must be passed that cooling water is delivered to milling roller, the utility model is with the seal shaft 2 axial lengthening 8～12mm of distributing shaft 1 fittings body 4 one sides, the inwall gap of the lengthening section of seal shaft 2 and fittings body 4 is 0.02～0.025mm, make in the matched in clearance process of seal shaft 2 lengthening sections and fittings body 4 inwalls, improve the sealing property between mandrel and the cover; Cooling water is entered insert oil circuit 5 or cooling water to return Shi Buhui and leakage phenomenon occurs by oil circuit.
Claims (2)
1, a kind of aluminum strip cold-rolling mill angling cylinder swivel joint that improves structure; It is characterized in that: described rotary joint structure comprises the swivel joint body, the seal shaft (2) that is arranged on distributing shaft (1) fittings body (4) the one sides 8～12mm that axially extends, the inwall matched in clearance of described seal shaft (2) lengthening section and fittings body (4).
2, the aluminum strip cold-rolling mill angling cylinder swivel joint of improvement structure according to claim 1; It is characterized in that: the inwall gap of the lengthening section of seal shaft (2) and fittings body (4) is 0.02～0.025mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202208019U CN201287137Y (en) | 2008-11-10 | 2008-11-10 | Improved rotary joint for aluminum cold-strip mill rotation oil-cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202208019U CN201287137Y (en) | 2008-11-10 | 2008-11-10 | Improved rotary joint for aluminum cold-strip mill rotation oil-cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201287137Y true CN201287137Y (en) | 2009-08-12 |
Family
ID=40978808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202208019U Expired - Fee Related CN201287137Y (en) | 2008-11-10 | 2008-11-10 | Improved rotary joint for aluminum cold-strip mill rotation oil-cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201287137Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151727A (en) * | 2016-08-26 | 2016-11-23 | 苏州博众精工科技有限公司 | A kind of high pressure grease swivel joint |
-
2008
- 2008-11-10 CN CNU2008202208019U patent/CN201287137Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151727A (en) * | 2016-08-26 | 2016-11-23 | 苏州博众精工科技有限公司 | A kind of high pressure grease swivel joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: LUOYANG ZHENGYANG METALLURGI-TEK CO., LTD. Free format text: FORMER NAME: LUOYANG ZHENGYANG MACHINERY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 471003, Zhou Shan District, Luoyang hi tech Zone, Henan, 15-7 Patentee after: Luoyang Zhengyang Metallurgical Technology Co.,Ltd. Address before: 471003, Zhou Shan District, Luoyang hi tech Zone, Henan, 15-7 Patentee before: Luoyang zhengyang machinery Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090812 Termination date: 20161110 |