CN100554709C - Roller load-carrying rolling spline pair - Google Patents
Roller load-carrying rolling spline pair Download PDFInfo
- Publication number
- CN100554709C CN100554709C CNB200710133947XA CN200710133947A CN100554709C CN 100554709 C CN100554709 C CN 100554709C CN B200710133947X A CNB200710133947X A CN B200710133947XA CN 200710133947 A CN200710133947 A CN 200710133947A CN 100554709 C CN100554709 C CN 100554709C
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- CN
- China
- Prior art keywords
- roller
- spline housing
- splined shaft
- spline
- back device
- 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
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Abstract
The invention discloses a kind of roller load-carrying rolling spline pair, comprise splined shaft, spline housing, back device, roller, back device and maintainance block, spline housing is provided with and the suitable internal diameter of the sectional shape of splined shaft, and the roller of spline housing by axial setting is sleeved on the splined shaft and can moves axially along splined shaft; Splined shaft is provided with many, and roller rolls along raceway, enters raceway again after the end of spline housing enters the back hole by the back device through the raceway that quenches and precision grinding processes, and roller carries out rolling motion like this again and again; On the internal diameter of spline housing, be provided with the maintainance block that is used for limiting the roller traffic direction, be provided with roller between roller and the roller and keep chain, make the roller motion steadily.Bearing capacity of the present invention is big, easy for installation, absence of collision between roller and the roller, and it is little to wear and tear, and operating noise is little, and long service life is a kind of rolling spline pair that is applicable to transmitting large torque.
Description
Technical field:
The present invention relates to a kind of rolling spline pair, specifically a kind of roller load-carrying rolling spline pair.
Background technique
Along with the numerical control development of all kinds of equipments, to transmitting the functional part rush of demand that straight line motion again can transmitting torque, especially need can transmitting large torque functional part.Large-scale, heavily loaded, the lightweight equipment of development is one of important trend of equipping now industry development under the prerequisite that does not reduce function of use.Rolling spline pair is applied in the various equipments, as lathe, chemical industry equipment, printing machinery, medical apparatus, light industry or the like, is mainly used to not only transmit straight line motion but also transmitting torque.
At present, traditional is that the rolling spline pair of rolling element exists following shortcoming with the steel ball:
1, rolling spline pair is made up of spline housing 12, splined shaft 11, steel ball 13 and back device 14, sees Fig. 1, and it both can transmit straight line motion, also can transmitting torque, but traditional rolling spline pair is realized carrying and motion by steel ball, and transmitting torque is limited, is not suitable for the transmitting large torque occasion.
2, the design of back device is in spline housing inside in the traditional rolling spline pair, and complex structure is difficult for processing.
3, directly contact between the steel ball, no isolation mounting, in the process of motion, collision mutually between the steel ball, noise is very big, and working life is short.
4, assembling is complicated, is not suitable for industrialization.
Summary of the invention
In order to adapt to of the requirement of equipment industry development to rolling function parts product, overcome problems of the prior art, the purpose of this invention is to provide a kind of roller load-carrying rolling spline pair, this rolling spline adjutant bearing mode changes the line contact into by a contact, increase the roller number of bearing load simultaneously, therefore the load of bearing is bigger; And easy to assembly, be adapted to industrialization production.
The objective of the invention is to be achieved through the following technical solutions:
A kind of roller load-carrying rolling spline pair, it is characterized in that: it comprises splined shaft, spline housing, back device, roller, back device and maintainance block, described spline housing is provided with and the suitable internal diameter of the sectional shape of splined shaft, and the roller of spline housing by axial setting is sleeved on the splined shaft and can moves axially along splined shaft; Roller enters raceway again and carries out rolling motion again and again along the raceway that many processes are quenched and precision grinding processes after the end of spline housing enters the back hole by the back device; On the internal diameter of spline housing, be provided with the maintainance block that is used for limiting the roller traffic direction; The back device that is used for roller is turned to is fixed on the two ends of spline housing.
Among the present invention,, in the raceway groove of spline housing, be provided with the intubate that is used for limiting the roller traffic direction for guaranteeing the traffic direction of roller.
The present invention is used for avoiding the maintenance chain that bumps between the two adjacent rollers being provided with between roller.Keep chain to be made of plastics, the plastics roller keeps chain that roller is separated, and has avoided the collision between roller and the roller, has reduced operating noise.
Keep the use of chain that the collision between the rolling element is disappeared, the wearing and tearing of rolling element reduce, and can also have a small amount of lubricating grease in keeping chain, so just can realize long-term Maintenance free maintenance, increase the service life.
The present invention changes carrier into roller by steel ball, and bearing mode changes the line contact into by a contact, and the load of bearing is increased greatly; Can also increase simultaneously the roller number of bearing load, further increase the load of bearing.And, the present invention is arranged on the back device at the two ends of spline housing, change the mode that originally the back device is installed in spline housing inside, in the assembling spline, the back device of an end can be installed earlier, then toward raceway the inside dress roller and maintenance chain, the back device of the other end is installed again, has been made things convenient for assembly process, changed the phenomenon that original steel ball can not be filled raceway.The present invention has set up the plastics roller and has kept chain, roller is separated, avoided the collision between roller and the roller, reduced operating noise, keep the use of chain that the collision between the rolling element is disappeared simultaneously, the wearing and tearing of rolling element reduce, and can also have a small amount of lubricating grease in keeping chain, so just realize long-term Maintenance free maintenance, prolonged working life.
Compared with prior art, advantage of the present invention is: 1, bearing capacity is big; 2, easy for installation; 3, absence of collision between roller and the roller, it is little to wear and tear, and has reduced operating noise, has prolonged working life.
Description of drawings
Fig. 1 a is the structural representation of existing rolling spline pair;
Fig. 1 b is the side sectional view of Fig. 1 a;
Fig. 2 a is a structural representation of the present invention;
Fig. 2 b is the A-A sectional view of Fig. 2 a.
Embodiment
A kind of roller load-carrying rolling spline pair of the present invention comprises splined shaft 1, spline housing 2, roller 3, back device 4 and maintainance block 5.Spline housing 2 is provided with and the suitable internal diameter of the sectional shape of splined shaft 1, and spline housing 2 is sleeved on the splined shaft 1 by six groups of rollers 3 that axially are provided with and can moves axially along splined shaft 1; Be provided with the maintainance block 5 that is used for limiting roller 3 traffic directions on the internal diameter of spline housing 2, maintainance block 5 is three.The back device 4 that is used for roller 3 is turned to is fixed on the two ends of spline housing 2.
For guaranteeing the traffic direction of roller 3, in the raceway groove of spline housing 2, be provided with the intubate 6 that is used for limiting roller 3 traffic directions, the shape and size of intubate 6 and roller 3 are suitable.Be provided with 3 of rollers and be used for avoiding the maintenance chain 7 that bumps between the two adjacent rollers.Keep chain 7 to be made of plastics, the plastics roller keeps chain 7 that roller 3 is separated, and has avoided the collision between roller and the roller, has reduced operating noise.
The present invention changes carrier into roller by steel ball, and bearing mode changes the line contact into by a contact, and the load of bearing is increased greatly, can also increase the roller number of bearing load simultaneously, further increases the load of bearing.The back device is arranged on the two ends of spline housing, in the assembling spline, the back device of an end can be installed earlier,, the back device of the other end is installed again then toward raceway the inside dress roller and maintenance chain, make things convenient for assembly process, changed the phenomenon that original steel ball can not be filled raceway.The plastics roller keeps chain roller can be separated, avoided the collision between roller and the roller, reduced operating noise, keep the use of chain that the collision between the rolling element is disappeared simultaneously, the wearing and tearing of rolling element reduce, and in keeping chain, can also have a small amount of lubricating grease, and so just realize long-term Maintenance free maintenance, prolonged working life.
Claims (4)
1, a kind of roller load-carrying rolling spline pair, it is characterized in that: it comprises splined shaft (1), spline housing (2), roller (3), back device (4) and maintainance block (5), described spline housing (2) is provided with the suitable internal diameter of sectional shape with splined shaft (1), and spline housing (2) is sleeved on splined shaft (1) by one group of roller (3) that axially is provided with and goes up and can move axially along splined shaft (1); On the internal diameter of spline housing (2), be provided with the maintainance block (5) that is used for limiting roller (3) traffic direction; The back device (4) that is used for roller (3) is turned to is fixed on the two ends of spline housing (2).
2, roller load-carrying rolling spline pair according to claim 1 is characterized in that: be provided with the intubate (6) that is used for limiting roller (3) traffic direction in the raceway groove of spline housing (2).
3, roller load-carrying rolling spline pair according to claim 1 is characterized in that: be used for avoiding the maintenance chain (7) that bumps between the two adjacent rollers (3) being provided with between roller (3).
4, roller load-carrying rolling spline pair according to claim 3 is characterized in that: keeping chain (7) and the gap that roller (3) forms to store lubricant oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710133947XA CN100554709C (en) | 2007-10-17 | 2007-10-17 | Roller load-carrying rolling spline pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710133947XA CN100554709C (en) | 2007-10-17 | 2007-10-17 | Roller load-carrying rolling spline pair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101135341A CN101135341A (en) | 2008-03-05 |
| CN100554709C true CN100554709C (en) | 2009-10-28 |
Family
ID=39159596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200710133947XA Expired - Fee Related CN100554709C (en) | 2007-10-17 | 2007-10-17 | Roller load-carrying rolling spline pair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100554709C (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4659239A (en) * | 1985-04-30 | 1987-04-21 | Hiroshi Teramachi | Bearing for axial linear motion |
| US6152602A (en) * | 1997-05-30 | 2000-11-28 | Thk Co. Ltd. | Ball spline unit and method of forming outer cylinder of ball spline unit |
| CN2856565Y (en) * | 2004-12-17 | 2007-01-10 | 南京工艺装备制造厂 | End cover type return rolling spline pair |
| CN201129359Y (en) * | 2007-10-17 | 2008-10-08 | 南京工艺装备制造有限公司 | Pin roller over loading rolling multiple spline pair |
-
2007
- 2007-10-17 CN CNB200710133947XA patent/CN100554709C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4659239A (en) * | 1985-04-30 | 1987-04-21 | Hiroshi Teramachi | Bearing for axial linear motion |
| US6152602A (en) * | 1997-05-30 | 2000-11-28 | Thk Co. Ltd. | Ball spline unit and method of forming outer cylinder of ball spline unit |
| CN2856565Y (en) * | 2004-12-17 | 2007-01-10 | 南京工艺装备制造厂 | End cover type return rolling spline pair |
| CN201129359Y (en) * | 2007-10-17 | 2008-10-08 | 南京工艺装备制造有限公司 | Pin roller over loading rolling multiple spline pair |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101135341A (en) | 2008-03-05 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20091028 Termination date: 20161017 |