CN101818757B - Self-lubricating plastic linear bearing with rotatable sliding film and spiral grooves - Google Patents
Self-lubricating plastic linear bearing with rotatable sliding film and spiral grooves Download PDFInfo
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- CN101818757B CN101818757B CN2010100033172A CN201010003317A CN101818757B CN 101818757 B CN101818757 B CN 101818757B CN 2010100033172 A CN2010100033172 A CN 2010100033172A CN 201010003317 A CN201010003317 A CN 201010003317A CN 101818757 B CN101818757 B CN 101818757B
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- retainer
- sliding film
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- linear bearing
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Abstract
The invention discloses a self-lubricating plastic linear bearing with a rotatable sliding film and spiral grooves. The bearing is provided with a tubular retainer, wherein a self-lubricating plastic sliding film is attached to the inner wall of the retainer, grooves are formed on the inner periphery of the sliding film, the sliding film is attached to the inner wall of a retainer hole by coiling, and the sliding film is provided with an axial positioning structure and a peripheral positioning structure on the retainer. The invention is characterized in that the grooves are spiral; in the axial positioning structure, outward end-surface flanged edges are arranged at both ends of the sliding film and the two end-surface flanged edges are clamped on the two end surfaces of the retainer; and in the peripheral positioning structure, at least two staggered positioning grooves or positioning holes are formed in the flanged edges and positioning pins are fixed on the retainer in the positioning grooves or the positioning holes. The invention can form a good fit with the shaft, and can greatly prolong the service life by rotating the relative angle between the sliding film and the retainer after being used for a period of time. The invention can be used in mechanical devices in the fields of chemical industry, medicine, instrument, food processing and the like.
Description
Technical field
The present invention relates to linear bearing, relate in particular to the rotating self-lubricating plastic linear bearing of a kind of band sliding film and spiral grooves.
Background technique
Linear bearing is used for unlimited stroke and cylinder axis is used.The existing plastic linear bearing such as the patent No. are ZL200420090379.1 combined straight-line bearing; It includes the retainer of pipe shape; Inwall at retainer has posted the plastics slip film, on the inwall circumference of the stage casing of retainer, is shaped on restraining groove, and bottom land is shaped on spacing hole; Said slip film includes continuous sheet plastic; The cooperation place of restraining groove is shaped on evenly positive stop lug boss spaced apart in itself and the retainer; On positive stop lug boss, be shaped on the position limit pin that cooperates with spacing hole, slip film is put in the retainer hole through rolling, and the groove with the retainer parallel axes of pipe shape is arranged between the sheet plastic that links to each other; Slip film in retainer because cooperating of boss and restraining groove limited moving axially of the relative retainer of slip film; The position limit pin on the slip film boss and the engagement limits of spacing hole the circumferential rotation of the relative retainer of slip film.Such cooperating structure is more stable at first view, reliable; But in actual use often plastics slip film in the linear bearing and axial length phase in the same position friction; Cause the single regions wear of mill axle; And slip film is only scrapped with the contact position excessive wear of axle in a certain zone, has reduced the working life of axle and linear bearing, and has seemed uneconomical.
Summary of the invention
The object of the present invention is to provide that a kind of manufacturing process is simple, cost is low, in light weight, long service life, the rotating self-lubricating plastic linear bearing of band sliding film and spiral grooves easy to install and use.In order to achieve the above object; The technological scheme of the rotating self-lubricating plastic linear bearing of band sliding film and spiral grooves is: it includes the retainer of pipe shape; Post the slip film of selflubricatingpiston at the inwall of retainer; Be shaped on groove on the slip film inner circumference, slip film is through rolling the inwall that posts in the retainer hole, and slip film is provided with the axial and circumferential position structure on retainer; It is characterized in that described groove is a spirality; Said axial positioning structure is meant at the two ends of slip film and is provided with outside end face flange flange, and both ends of the surface flange flange is stuck in the both ends of the surface of retainer, and said circumferential position structure is that the tangent line of the angle of axis and groove is identical with the angle of retainer central axis at least on the flange flange.Flange flange one end of said slip film is greater than an other end.Locating slot or positioning hole are on the big end of flange flange.
The rotating self-lubricating plastic linear bearing of band sliding film and spiral grooves according to the said structure manufacturing; Because the supporting surface of slip film internal spiral type; When this linear bearing during at linear reciprocating motion; Can accomplish the good fit with axle, make to be shaped on two locating slots or the positioning hole that staggers using, be fixed with locating stud on the retainer in locating slot or positioning hole.The angle of the tangent line of said groove and retainer central axis is 3 °～30 °.Said slip film rolls in tangent line and the retainer center journey of joint close more steady, and quality of fit is higher.Can be after using a period of time through rotating the relative angle of slip film and retainer; Thereby avoided original plastic linear bearing and axle all the time in the phenomenon of same position contact wear; Slip film was through will be originally after rotating touching the supporting surface that has worn and torn and changed into the less or unworn surface of contact of new wearing and tearing with being coupling; Rotation through the several times slip film is changed, and makes whole slip film inner hole wall contact with the axle surface in turn, and significantly prolong the working life of whole plastic linear bearing.The slip film means of fixation of the flange flange that adopts makes product become convenient and quick in installation and later stage replacing housekeeping operation.Structural design through this band spiral groove and rotation slip film; The original relatively similar products at home and abroad of selflubricating linear bearing whole synthesis user cost is descended greatly, and this product can be widely used in the mechanical devices such as chemical industry, medicine, instrument, instrument, Aeronautics and Astronautics, food processing.
Description of drawings
Fig. 1 is the plan view of the rotating self-lubricating plastic linear bearing of band sliding film and spiral grooves;
Fig. 2 is the worm's eye view of Fig. 1;
Fig. 3 is the plan view of slip film;
Fig. 4 is the worm's eye view of Fig. 3;
Fig. 5 is the unfolded drawing of Fig. 3.
Among the figure: 1, retainer; 2, slip film; 3, groove; 4, joint close; 5, flange flange; 6, locating slot or positioning hole; 7, locating stud.
Embodiment
Through embodiment the present invention is done further description below.
Fig. 1, Fig. 2 are the rotating self-lubricating plastic linear bearing structural drawing of band sliding film and spiral grooves.From figure, find out that it includes the retainer 1 of pipe shape; Post the slip film 2 of selflubricatingpiston at the inwall of retainer 1; Described slip film 2 is to add inorganic improving agent, organic modifier, reinforcing fiber and the moulding of lubricator mixed injection molding by engineering plastics; Like Fig. 3, Fig. 4, shown in Figure 5, be shaped on spiral groove 3 on slip film 2 inner circumferences, the included angle A of the tangent line of groove 3 and retainer central axis is 3 °～30 °; Slip film 2 is through rolling the inwall that posts in retainer 1 hole, and the tangent line of the tangent line that slip film 2 rolls joint close and the angle of retainer central axis and groove is identical with the included angle A of retainer central axis.Slip film 2 is provided with the axial and circumferential position structure on retainer 1.Said axial positioning structure is to be provided with outside end face flange flange 5 at the two ends of slip film 2, and both ends of the surface flange flange 5 is stuck in the both ends of the surface of retainer 1.Described circumferential position structure is on flange flange 5, to be shaped on two locating slots or the positioning hole 6 that staggers at least; Like relative two locating slots or positioning hole 6; Four locating slots that also can be as shown in Figure 2 or positioning hole 6 are fixed with locating stud 7 on the retainer 1 in locating slot or positioning hole 6.Flange flange 5 one ends of said slip film 2 are greater than an other end.Locating slot or positioning hole 6 are on the big end of flange flange 5.
Claims (5)
1. be with the rotating self-lubricating plastic linear bearing of sliding film and spiral grooves; It includes the retainer of pipe shape; Post the slip film of selflubricatingpiston at the inwall of retainer, be shaped on groove on the slip film inner circumference, slip film is through rolling the inwall that posts in the retainer hole; Slip film is provided with the axial and circumferential position structure on retainer; It is characterized in that described groove is a spirality, said axial positioning structure is meant at the two ends of slip film and is provided with outside end face flange flange that both ends of the surface flange flange is stuck in the both ends of the surface of retainer; Said circumferential position structure is two locating slots or the positioning hole that is shaped at least on the flange flange that angle staggers, and is fixed with locating stud on the retainer in locating slot or positioning hole.
2. the rotating self-lubricating plastic linear bearing of band sliding film and spiral grooves according to claim 1 is characterized in that the tangent line of said groove and the angle of retainer central axis are 3 °～30 °.
3. the rotating self-lubricating plastic linear bearing of band sliding film and spiral grooves according to claim 1 is characterized in that the angle of tangent line and retainer central axis of angle and groove of tangent line that said slip film rolls joint close and retainer central axis is identical.
4. the rotating self-lubricating plastic linear bearing of band sliding film and spiral grooves according to claim 1, flange flange one end that it is characterized in that said slip film is greater than an other end.
5. the rotating self-lubricating plastic linear bearing of band sliding film and spiral grooves according to claim 4 is characterized in that locating slot or positioning hole are on the big end of flange flange.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100033172A CN101818757B (en) | 2010-01-11 | 2010-01-11 | Self-lubricating plastic linear bearing with rotatable sliding film and spiral grooves |
| EP20110150417 EP2343462B1 (en) | 2010-01-11 | 2011-01-07 | Linear bearing with sliding film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100033172A CN101818757B (en) | 2010-01-11 | 2010-01-11 | Self-lubricating plastic linear bearing with rotatable sliding film and spiral grooves |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101818757A CN101818757A (en) | 2010-09-01 |
| CN101818757B true CN101818757B (en) | 2012-07-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010100033172A Active CN101818757B (en) | 2010-01-11 | 2010-01-11 | Self-lubricating plastic linear bearing with rotatable sliding film and spiral grooves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101818757B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954006A (en) * | 2011-08-16 | 2013-03-06 | 上海佰诺泵阀有限公司 | Low-noise horizontal chemical shielding pump |
| CN103591140A (en) * | 2013-10-12 | 2014-02-19 | 苏州市吴中区曙光铜管厂 | Shaft sleeve |
| CN106050922B (en) * | 2016-07-04 | 2018-08-14 | 浙江大学 | The sliding bearing of self-circulation type |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2853311B2 (en) * | 1989-12-12 | 1999-02-03 | 日本精工株式会社 | Bearing with dynamic pressure groove and method of manufacturing the same |
| CN201575063U (en) * | 2010-01-11 | 2010-09-08 | 浙江长盛滑动轴承有限公司 | Rotatable self-lubricating plastic linear bearing with spiral groove sliding film |
-
2010
- 2010-01-11 CN CN2010100033172A patent/CN101818757B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2853311B2 (en) * | 1989-12-12 | 1999-02-03 | 日本精工株式会社 | Bearing with dynamic pressure groove and method of manufacturing the same |
| CN201575063U (en) * | 2010-01-11 | 2010-09-08 | 浙江长盛滑动轴承有限公司 | Rotatable self-lubricating plastic linear bearing with spiral groove sliding film |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101818757A (en) | 2010-09-01 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 314100, No. 138 Changsheng Road, Jiashan County, Jiaxing City, Zhejiang Province Applicant after: Zhejiang Changsheng Sliding Bearing Co., Ltd. Address before: The industrial park of Jiashan County of Jiaxing City, Zhejiang province 314100 Weitang Town Changsheng Road No. 138 Applicant before: Zhejiang Changsheng Sliding Bearing Co., Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: ZHEJIANG CHANGSHENG SLIDING BEARING CO., LTD. TO: ZHEJIANG CHANGSHENG SLIDING BEARINGS CO., LTD. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |