CN206175503U - Spline with lubricating structure - Google Patents

Spline with lubricating structure Download PDF

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Publication number
CN206175503U
CN206175503U CN201621231038.0U CN201621231038U CN206175503U CN 206175503 U CN206175503 U CN 206175503U CN 201621231038 U CN201621231038 U CN 201621231038U CN 206175503 U CN206175503 U CN 206175503U
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CN
China
Prior art keywords
lubrication
spline
annular
groove
lubrication groove
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Active
Application number
CN201621231038.0U
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Chinese (zh)
Inventor
李健
刘林
冯治恒
叶勤
马艳丽
张寒羽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangxi Liugong Machinery Co Ltd
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Guangxi Liugong Machinery Co Ltd
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Priority to CN201621231038.0U priority Critical patent/CN206175503U/en
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Abstract

The utility model discloses a spline with lubricating structure relates to zero technical field of engineering machine tool, has seted up lubrication pressure oil duct along the axial in the integral key shaft the external splines section of integral key shaft is provided with outer annular lubrication groove, outer annular lubrication groove pass through the oil cavity with lubrication pressure oil duct is linked together, the internal spline section of spline housing be provided with with the corresponding interior annular lubrication groove of outer annular lubrication groove, interior annular lubrication groove with outer annular lubrication groove forms lubricated oil bath, on the integral key shaft respectively the cover be equipped with with the bearing of spline housing looks butt. The utility model provides a vice lubricated insufficient problem of current spline.

Description

Spline with lubrication system
Technical field
The utility model is related to Engineering Machinery Components technical field, especially a kind of multi gear speed change for engineering machinery The spline of device.
Background technology
Speed changer is one of most important part of engineering machinery, and spline connection is then connection side the most frequently used in speed changer One of formula, such as axle and gear, flange and axle, are all by the firm connection of spline pair, mutually transmit power.Spline connection structure Simply, be connected firmly, process with assembly precision be easily guaranteed that, use flexibly.But some spline pairs are usually not in speed changer Special lubrication system is set, but is lubricated by the fluid splashed in speed changer, due to oil mass seldom, structure limit and Centrifugal action, some spline pairs are hardly obtained any lubricating oil, and the long-term work of large-duty loader gearbox is in low speed weight Load, frequent rotating operating mode, if spline pair lubrication is insufficient, easily cause spline wear, affect part service life, reduce becoming Fast device reliability.
Utility model content
The purpose of this utility model is to provide a kind of spline with lubrication system, and this spline can solve existing spline The insufficient problem of pair lubrication.
In order to solve the above problems, the technical solution adopted in the utility model is:This spline with lubrication system, Lubrication pressure oil duct is offered vertically in splined shaft, and the outer spline section of the splined shaft is provided with outer annular lubrication groove, institute State outer annular lubrication groove to be connected with the lubrication pressure oil duct by lubrication hole;It is provided with and institute in the internal spline section of spline housing The corresponding annular lubrication groove of outer annular lubrication groove is stated, the annular lubrication groove forms lubrication with the outer annular lubrication groove Oil sump;The bearing abutted against with the spline housing is respectively installed with the splined shaft.
In the technical scheme of the above-mentioned spline with lubrication system, more specifically technical scheme can also be:The lubrication Pressure oil duct off-axis line is arranged, and the lubrication hole is vertically connected at the lubrication pressure oil duct and the outer annular lubrication groove.
Further, internal diameter of the internal diameter of the lubrication hole less than the lubrication pressure oil duct.
Further, the outer annular lubrication groove is provided with skew wall inclined towards spline tooth.
Further, the outer annular lubrication groove is arranged at the end of the outer spline section.
Further, the outer annular lubrication groove is arranged at the middle part of the outer spline section.
As a result of above-mentioned technical proposal, the utility model has the advantages that compared with prior art:
1st, corresponding outer annular lubrication groove, annular lubrication groove are opened up on splined shaft and spline housing, formation can be stored The lubricating oil bath of pressure lubrication oil, and lubrication pressure oil duct and lubrication hole are opened up in splined shaft, can make lubrication pressure oil from Inside is by lubricating oil bath into carrying out forced feed lubrication with pressure between spline pair;Its lubrication is abundant, simple structure, effectively reduces flower The secondary abrasion of key, extends the spline life-span, and then improves the reliability of speed changer.
2nd, the setting of lubrication pressure oil duct off-axis line and the vertical connection of lubrication hole, can shorten pressure oil to the road of spline segment Journey, reduces the pressure loss, it is ensured that sufficient lubrication.
3rd, arrange and incline cell wall, enter between the backlash of spline pair beneficial to lubricating oil, improve lubricant effect.
Description of the drawings
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the structural representation of the spline housing of embodiment 1.
Fig. 3 is the structural representation of the splined shaft of embodiment 1.
Fig. 4 is the structural representation of the utility model embodiment 2.
Fig. 5 is the structural representation of the spline housing of embodiment 2.
Fig. 6 is the structural representation of the splined shaft of embodiment 2.
Fig. 7 is the structural representation of the utility model embodiment 3.
Fig. 8 is the structural representation of the spline housing of embodiment 3.
Fig. 9 is the structural representation of the splined shaft of embodiment 3.
Specific embodiment
Below in conjunction with the accompanying drawings the utility model is described in further detail for embodiment:
Embodiment 1
The spline with lubrication system shown in Fig. 1 includes spline housing 2 and splined shaft 3, and the spline housing 2 of the present embodiment is flower Keyhole gear, is respectively installed with the both sides of spline housing 2 clutch shaft bearing 1, second abutted against with spline housing 2 on splined shaft 3 Bearing 4.As shown in figure 3, lubrication pressure oil duct 3-1 is offered vertically in splined shaft 3, in the outer spline section 3-3 of splined shaft 3 Left part is provided with outer annular lubrication groove 3-4, and outer annular lubrication groove 3-4 is connected by lubrication hole 3-2 with lubrication pressure oil duct 3-1 It is logical;Preferably, lubrication pressure oil duct 3-1 off-axis line is arranged, and outer annular lubrication groove 3-4 is by a lubrication hole 3-2 and lubrication pressure Power oil duct 3-1 vertically connects, and the internal diameter of lubrication hole 3-2 is less than the internal diameter of lubrication pressure oil duct 3-1;Outer annular lubrication groove 3-4 sets It is equipped with skew wall 3-41 inclined towards spline tooth.As depicted in figs. 1 and 2, internal spline section 2-1 in spline housing 2 be provided with outward Annular lubricant groove 3-4 corresponding annular lubrication groove 2-2, annular lubrication groove 2-2 form lubrication with outer annular lubrication groove 3-4 Oil sump 5.
During work, lubrication pressure oil enters lubrication hole 3-2 by the lubrication pressure oil duct 3-1 on splined shaft 3, full of spline Lubricating oil bath 5 between axle 3 and spline housing 2, because the left side of lubricating oil bath 5 is stopped that lubrication pressure oil passes through by clutch shaft bearing 1 Spline backlash side spline secondary flow to the right, and then realize lubrication spline pair.
Embodiment 2
As shown in Figures 4 to 6, the outer annular lubrication groove 7-4 of the present embodiment is opened in the outer spline section 7-3's of splined shaft 7 Right part, the annular lubrication groove 6-2 correspondences of spline housing 6 are opened in the right part of internal spline section 6-1, remaining feature and embodiment 1 is identical.
During work, lubrication pressure oil Jing lubrication pressure oil duct 7-1, lubrication hole 7-2 are full of lubricating oil bath 9, due to lubricating oil The right side in pond 9 is stopped that lubrication pressure oil passes through spline backlash side spline secondary flow to the left, and then realizes by second bearing 8 Lubrication spline pair.
Embodiment 3
As shown in Figure 7 to 9, the outer annular lubrication groove 11-4 of the present embodiment is opened in the outer spline section 11-3 of splined shaft 11 Middle part, the annular lubrication groove 10-2 correspondences of spline housing 10 are opened in the middle part of internal spline section 10-1, remaining feature with implement Example 1 is identical.
During work, lubrication pressure oil Jing lubrication pressure oil duct 11-1, lubrication hole 11-2 are full of lubricating oil bath 12, lubrication pressure Oil passes through spline backlash difference spline secondary flow to left and right, and then realizes lubrication spline pair.

Claims (6)

1. a kind of spline with lubrication system, it is characterised in that:Offer lubrication pressure oil duct vertically in splined shaft, The outer spline section of the splined shaft is provided with outer annular lubrication groove, and the outer annular lubrication groove is by lubrication hole and the lubrication pressure Power oil duct is connected;The internal spline section of spline housing is provided with the annular lubrication groove corresponding with the outer annular lubrication groove, The annular lubrication groove forms lubricating oil bath with the outer annular lubrication groove;It is respectively installed with the splined shaft and the flower The bearing that key set is abutted against.
2. the spline with lubrication system according to claim 1, it is characterised in that:The lubrication pressure oil duct off-axis line Arrange, the lubrication hole is vertically connected at the lubrication pressure oil duct and the outer annular lubrication groove.
3. the spline with lubrication system according to claim 2, it is characterised in that:The internal diameter of the lubrication hole is less than institute State the internal diameter of lubrication pressure oil duct.
4. the spline with lubrication system according to claim 1 or 2 or 3, it is characterised in that:The outer annular lubrication groove It is provided with skew wall inclined towards spline tooth.
5. the spline with lubrication system according to claim 4, it is characterised in that:The outer annular lubrication groove is arranged at The end of the outer spline section.
6. the spline with lubrication system according to claim 4, it is characterised in that:The outer annular lubrication groove is arranged at The middle part of the outer spline section.
CN201621231038.0U 2016-11-16 2016-11-16 Spline with lubricating structure Active CN206175503U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621231038.0U CN206175503U (en) 2016-11-16 2016-11-16 Spline with lubricating structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621231038.0U CN206175503U (en) 2016-11-16 2016-11-16 Spline with lubricating structure

Publications (1)

Publication Number Publication Date
CN206175503U true CN206175503U (en) 2017-05-17

Family

ID=58683956

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621231038.0U Active CN206175503U (en) 2016-11-16 2016-11-16 Spline with lubricating structure

Country Status (1)

Country Link
CN (1) CN206175503U (en)

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