CN201554786U - Splined hub capable of improving lubricating property of spline shaft - Google Patents
Splined hub capable of improving lubricating property of spline shaft Download PDFInfo
- Publication number
- CN201554786U CN201554786U CN2009202097843U CN200920209784U CN201554786U CN 201554786 U CN201554786 U CN 201554786U CN 2009202097843 U CN2009202097843 U CN 2009202097843U CN 200920209784 U CN200920209784 U CN 200920209784U CN 201554786 U CN201554786 U CN 201554786U
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- spline housing
- lubricating oil
- axial lubrication
- groove
- radially
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Abstract
A splined hub capable of improving lubricating property of a spline shaft (J) is provided with at least two radial lubricating oil filling holes (1s), axial lubricating oil flowing passages (1f) and radial lubricating oil flow-out passages (1d). The radial lubricating oil filling holes (1s) are equidistantly distributed along the periphery of the outer surface with a tooth wall portion (1a) of the splined hub (1), are located at the center of a splined hub tooth groove (1b) and have specified depth, the axial lubricating oil flowing passages (1f) are arranged along an axial direction of the splined hub, are communicated with the bottom ends of the radial lubricating oil filling holes and have specified length, the radial lubricating oil flow-out passages (1d) are arranged at approximate center positions of the axial lubricating oil flowing passages and communicated to the bottom (1c) of the tooth groove, and an axial lubricating oil groove (2) is arranged on the bottom portion of each splined hub tooth groove along an axial direction of the splined hub.
Description
Technical field
The utility model relates to a kind of spline housing,, can improve the spline housing (internal spline) as the splined shaft greasy property of large-scale main drive shaft that is.
Background technique
Crossed universal shaft is started to walk from early 1980s in China, and takes the lead in being used for the metallurgical industry rolling equipment.Hooks coupling universal coupling is a kind of widely used mechanical part, is referred to as cardan shaft usually.The major function of cardan shaft is to transmit the not motion and the power (moment of torsion) of two drive line on same straight line.But crossed universal shaft seldom is used for mill's main drive shaft, and tradition all was to use the slide block type cardan shaft in the past, and crossed universal shaft has and safeguards that the characteristics simple, that pivot angle is big especially are suitable for the milling train of band CVC function than the slide block type cardan shaft.
CVC is meant continuous variable roll crown control, this function mainly with upper working rolls and lower working rolls back and forth play realize that this just requires main drive shaft that Telescopic is arranged.And crossed universal shaft is to have splined shaft and spline housing, can satisfy the requirement of CVC.
Advantages such as splined shaft is as driving parts, and the strength reduction of have that area of contact is big, bearing capacity is high, centering property is good, guidance quality is good, tooth root is more shallow, stress being concentrated less and axle and hub (cover) is little.In the industrial production field, spline is divided into involute splines, rectangular spline and serration spline according to the difference of profile geometry, and wherein most widely used is rectangular spline.Rectangular spline can transfer larger torque, and the part that allows to match in transmission moves axially vertically, and can keep good guidance quality, and good to neutrality, easy to process.
But the cardan shaft of this form also has some unsatisfactory places, and its outstanding shortcoming is an insufficient lubrication, and wearing and tearing are big.Therefore, a kind of spline housing 1 that is combined together with splined shaft J has as shown in Figure 1a been proposed, to improve the greasy property of the splined shaft J that is combined together with spline housing 1.The structure of this spline housing 1 is, the tooth wall 1a of portion outer surface circumference equal distribution being arranged and is positioned at teeth groove 1b middle ground and offer radially lubricant oil tank filler sleeve 1s more than at least two along spline housing 1 with certain depth, and along axially the offering and this axial lubrication runner 1f with certain-length of being connected of lubricant oil tank filler sleeve 1s bottom radially of spline housing 1, the radially flow of lubricant that offers the bottom 1c that is communicated to spline housing teeth groove 1b (referring to Fig. 1 a and Fig. 1 b) in the substantial middle of this axial lubrication runner 1f 1d that engages in this profession.
Because the location of spline is to rely on flank (not shown) and Topland 1e (referring to Fig. 1 b), so the quality of fit at this two place requires high, the gap is little, lubricant oil is difficult to arrive this position, main shaft is subjected to action of centrifugal force and is difficult to store lubricant oil, especially Topland 1e in rotary course, lubricant oil is very fast herein under the effect of high pulling torque is squeezed out, so can't store lubricant oil, cause insufficient lubrication, main spindle multiple spline part serious wear produces stuck phenomenon.
In making the spline process, take nitriding to handle, but nitriding layer also will produce the problems referred to above after being polished, and make whole cardan shaft scrap to splined surfaces.
The model utility content
In view of the shortcoming of above-mentioned existence, the utility model purpose is to provide a kind of spline housing, can improve itself and the greasy property that is mated splined shaft together, stops the mutual stuck phenomenon of splined shaft and spline housing, improves the working life of splined shaft.
For achieving the above object, the spline housing that improves the splined shaft greasy property of the present utility model, have: lubricant oil tank filler sleeve (1s) radially, it is offered more than at least two and has the degree of depth along tooth wall portion (1a) outer surface circumference equal distribution being arranged and being positioned at spline housing teeth groove (1b) middle ground of spline housing (1); Axial lubrication runner (1f), it is axially offered and is connected with the bottom of described radially lubricant oil tank filler sleeve along described spline housing, has length; And flow of lubricant engage in this profession (1d) radially, the bottom (1c) that it is opened in the central authorities of described axial lubrication runner and is communicated to described spline housing teeth groove, this spline housing is characterised in that, described bottom at each described spline housing teeth groove axially offers axial lubrication groove (2) along described spline housing, described radially flow of lubricant is engaged in this profession and is communicated with the central authorities of described axial lubrication groove, and the two ends of described axial lubrication groove have closed end (2a, 2b).
Described axial lubrication groove periphery is smooth shape by polishing.
Adopt above-mentioned spline housing of the present utility model, lubricant oil can be stored in the axial lubrication groove, can improve, improve the greasy property of fitting surfaces such as the Topland of itself and the splined shaft that is mated and Bottom land, prevent splined shaft and spline housing stuck phenomenon, the cardan shaft that improves greatly a kind of working life can be provided.
Description of drawings
Fig. 1 a is the structural drawing of the spline housing in the past that is combined together with splined shaft of expression.
Fig. 1 b is that expression is unloaded behind the splined shaft and to be seen the end view of spline housing in the past from the left side.
Fig. 2 a be expression spline housing of the present utility model, along the half sectional view that has after radially the lubricant oil tank filler sleeve dissects.
Fig. 2 b be expression spline housing of the present utility model, along the half sectional view that does not have after radially the spline housing teeth groove central authorities of lubricant oil tank filler sleeve are dissectd.
Fig. 3 is the half sectional view that expression spline housing of the present utility model and splined shaft are combined together.
Embodiment
Below, with reference to the accompanying drawings 2 and Fig. 3 describe a kind of spline housing structure and advantage and effect of improving the splined shaft greasy property of the present utility model in detail.
Shown in Fig. 2 a, the spline housing 1 that improves splined shaft J greasy property of the present utility model has: lubricant oil tank filler sleeve 1s radially, it is offered more than two (symmetry is offered two in the present embodiment, also can offer more than three or three) at least and has the degree of depth along the tooth wall 1a of portion outer surface circumference (not shown) equal distribution being arranged and being positioned at spline housing teeth groove 1b middle ground of spline housing 1; Axial lubrication runner 1f, it is axially offered and is connected with radially the bottom of lubricant oil tank filler sleeve 1s (not shown) along spline housing 1, has length; And the flow of lubricant 1d that engages in this profession radially, it is opened in the central authorities of axial lubrication runner 1f and is communicated to the bottom 1c of spline housing teeth groove 1b (can with reference to Fig. 1 b).In addition, bottom 1c at each spline housing teeth groove 1b axially offers axial lubrication groove 2 along spline housing 1, the radially flow of lubricant that the is opened in axial lubrication runner 1f substantial middle 1d that engages in this profession is communicated with the central authorities of axial lubrication groove 2, and the two ends of axial lubrication groove 2 have closed end 2a, 2b.
Fig. 2 b be expression spline housing of the present utility model, along the half sectional view that does not have after radially the spline housing teeth groove central authorities of lubricant oil tank filler sleeve are dissectd.Promptly, owing to axially offer axial lubrication groove 2 at the bottom 1c of each spline housing teeth groove 1b along spline housing 1 in the said structure, therefore, except Fig. 2 a, have the tooth wall 1a of portion outer surface circumference equalization to offer two at spline housing 1 radially all to offer axial lubrication groove 2 on other spline housing teeth groove 1b bottom 1c at the position the lubricant oil tank filler sleeve 1s not radially lubricant oil tank filler sleeve 1s, axial lubrication runner 1f and radially the flow of lubricant 1d that engages in this profession.
In addition, in said structure, preferably axial lubrication groove 2 peripheries are smooth shape by polishing, strengthen the lubricated smoothness of lubricant oil in axial lubrication groove 2.
The utility model cooperates with splined shaft J by making this structure just becomes structure shown in Figure 3, can improve the greasy property of spline housing 1 and splined shaft J.In detail, when lubricant oil being injected radially lubricant oil tank filler sleeve 1s and after the 1d that engages in this profession through axial lubrication runner 1f and from flow of lubricant radially flows in the axial lubrication groove 2, because axial lubrication groove 2 two ends have closed end 2a, 2b, therefore lubricant oil just is stored in this axial lubrication groove 2, can not run to the spline outside.And at the rotary course of splined shaft J and spline housing 1 and splined shaft J in spline housing 1 back and forth in the process of play, can constantly clamp-on and be stored in other adjacent axial lubrication groove 2 of spline housing 1 from the lubricant oil that 1d flows in the axial lubrication groove 2 of engaging in this profession of flow of lubricant radially, play the cooperatively interact lubrication of face of splined shaft and spline housing.Therefore, the utility model can be improved the greasy property of spline housing and splined shaft, reduces wearing and tearing, thoroughly prevents the spline stuck phenomenon that causes because of insufficient lubrication, thereby prolongs the working life of spline greatly.
Claims (2)
1. spline housing that can improve the splined shaft greasy property, have: lubricant oil tank filler sleeve (1s) radially, it is offered more than at least two and has the degree of depth along tooth wall portion (1a) outer surface circumference equal distribution being arranged and being positioned at spline housing teeth groove (1b) middle ground of spline housing (1); Axial lubrication runner (1f), it is axially offered and is connected with the bottom of described radially lubricant oil tank filler sleeve along described spline housing, has length; And radially flow of lubricant is engaged in this profession (1d), and it is opened in the central authorities of described axial lubrication runner and is communicated to the bottom (1c) of described spline housing teeth groove, and this spline housing is characterised in that,
Described bottom at each described spline housing teeth groove axially offers axial lubrication groove (2) along described spline housing, described radially flow of lubricant is engaged in this profession and is communicated with the central authorities of described axial lubrication groove, and the two ends of described axial lubrication groove have closed end (2a, 2b).
2. the spline housing that improves the splined shaft greasy property as claimed in claim 1 is characterized in that, described axial lubrication groove periphery is smooth shape by polishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202097843U CN201554786U (en) | 2009-09-17 | 2009-09-17 | Splined hub capable of improving lubricating property of spline shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202097843U CN201554786U (en) | 2009-09-17 | 2009-09-17 | Splined hub capable of improving lubricating property of spline shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201554786U true CN201554786U (en) | 2010-08-18 |
Family
ID=42614468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202097843U Expired - Fee Related CN201554786U (en) | 2009-09-17 | 2009-09-17 | Splined hub capable of improving lubricating property of spline shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201554786U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312928A (en) * | 2011-08-24 | 2012-01-11 | 重庆齿轮箱有限责任公司 | Spline lubricating structure |
| CN102720773A (en) * | 2012-06-13 | 2012-10-10 | 华锐风电科技(江苏)有限公司 | Static pressure spline device |
| CN106594101A (en) * | 2016-11-28 | 2017-04-26 | 韦玉姣 | Elastic connecting mechanism |
| CN108317178A (en) * | 2017-01-16 | 2018-07-24 | 阿文美驰技术有限责任公司 | Slide yoke assembly |
-
2009
- 2009-09-17 CN CN2009202097843U patent/CN201554786U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312928A (en) * | 2011-08-24 | 2012-01-11 | 重庆齿轮箱有限责任公司 | Spline lubricating structure |
| CN102720773A (en) * | 2012-06-13 | 2012-10-10 | 华锐风电科技(江苏)有限公司 | Static pressure spline device |
| CN102720773B (en) * | 2012-06-13 | 2015-05-13 | 华锐风电科技(江苏)有限公司 | Static pressure spline device |
| CN106594101A (en) * | 2016-11-28 | 2017-04-26 | 韦玉姣 | Elastic connecting mechanism |
| CN108317178A (en) * | 2017-01-16 | 2018-07-24 | 阿文美驰技术有限责任公司 | Slide yoke assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100818 Termination date: 20160917 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |