CN209705115U - A kind of high precision splined shaft - Google Patents
A kind of high precision splined shaft Download PDFInfo
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- CN209705115U CN209705115U CN201821962444.3U CN201821962444U CN209705115U CN 209705115 U CN209705115 U CN 209705115U CN 201821962444 U CN201821962444 U CN 201821962444U CN 209705115 U CN209705115 U CN 209705115U
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- annular convex
- convex platform
- axle sleeve
- spline
- shaft
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Abstract
The utility model discloses a kind of high precision splined shafts, including spline shaft body and it is set in the axle sleeve of splined shaft outer body, spline shaft body includes annular convex platform I, buffer shaft, annular convex platform II and the spline tooth of successively end to end setting, distance is less than II overall diameter of annular convex platform between the spline tooth edge of any one group of vertical axis direction, and II overall diameter of annular convex platform is less than I overall diameter of annular convex platform；Axle sleeve is set in II outside of spline tooth and annular convex platform, and annular convex platform I is connected in axle sleeve opening；Axle sleeve includes axis tooth socket, corresponds to spline tooth and is located at sleeve lining, spline tooth is embedded in axis tooth socket；First groove corresponds to annular convex platform II and is located at sleeve lining, and annular convex platform II is embedded in the first groove, and the first groove floor sets blind hole；Elastic device is fixed on blind-hole bottom, and stretches out blind hole opening without external force.The application strengthens the stability of spline shaft body and shaft room, prevents from moving axially and mitigating friction, so that the two high precision engages.
Description
Technical field
The utility model relates to the field of splined shaft, in particular to a kind of high precision splined shaft.
Background technique
Splined shaft is mechanically operated one kind, and it is all transmitting mechanical torque that peace, which is built, the effect of woodruff key, taper key is the same,
It is axially provided with keyway on axis surface, covering the revolving part on axis also has corresponding keyway, can keep with axis synchronous rotary.It is revolving
While turning, some can also to make longitudinal sliding motion on axis, such as gearbox shifting gear.
Currently, being consolidated between splined shaft and hub splines on the market by mutual engagement, then by fixed screw
It is fixed, and when rotation, being easy to produce offset between the two causes to rub, and is reduced for a long time using rear degree of engagement, stability
Difference causes mutually matched precision poor, influences whole using effect and service life.
Utility model content
One purpose of the utility model is to solve at least the above problems, and provide the advantages of at least will be described later.
The utility model is to provide a kind of high precision splined shaft there are one purpose, passes through annular convex platform I and convex annular
The tightness of splined shaft and axle sleeve is reinforced in the setting of platform II, reduces offset and improves precision, uses the longevity conducive to extension splined shaft
Life.
In order to realize these purposes and other advantages according to the present utility model, a kind of high precision splined shaft is provided,
The spline shaft body includes annular convex platform I, buffer shaft, annular convex platform II and the spline tooth of successively end to end setting, described
Spline tooth includes along the axial multiple groups rectangular teeth symmetrically arranged two-by-two of the splined shaft ontology, wherein perpendicular to the spline
The axis direction of shaft body, the maximum distance between the edge of any group of rectangular teeth are less than the overall diameter of the annular convex platform II；Institute
II elasticity setting of annular convex platform is stated, and the overall diameter of the annular convex platform II is less than the overall diameter of the annular convex platform I；
The axle sleeve is set in the outside of the spline tooth and the annular convex platform II, and described axle sleeve one end is butted on
The annular convex platform I is on the end face of the annular convex platform II；The axle sleeve includes axis tooth socket, the first groove and elasticity dress
It sets, the axis tooth socket corresponds to the spline tooth and is axially disposed on the sleeve lining, and the spline tooth is embedded in the axis tooth
In slot；First groove corresponds to the annular convex platform II and is arranged in the sleeve lining, and the annular convex platform II is straight
Diameter is greater than the interior diameter of the axle sleeve, so that the annular convex platform II is embedded in first groove；The blind hole, it includes set
It sets in the multiple of first groove floor；The elastic device, one end are fixed at the blind-hole bottom, and without outer
Under power effect, the elastic device other end stretches out the opening of the blind hole.
Preferably, multiple fixation holes are peripherally set on end face of the annular convex platform I far from the annular convex platform II,
The mounting hole communicated with the fixation hole, and the fixation hole and installation are set on the corresponding axle sleeve edge of the fixation hole
The spline shaft body is fixedly connected by hole by the screw being adapted to axle sleeve.
Preferably, the elastic device includes casing and spring, and described sleeve pipe is set as elastic cylinder, the spring cylinder
The setting of body first end is open and is fixed on the blind-hole bottom, and the elastic cylinder second end closing is arranged and is set as longitudal section
Arc-shaped protrusion；
The spring is set in the inside of described sleeve pipe, and the both ends of the spring is separately fixed at the blind-hole bottom and institute
The inner wall of protrusion is stated, the protrusion is plugged in the second groove of annular of II side of annular convex platform setting, and described
Second groove is set as the arc-shaped groove body of longitudal section.
Preferably, the diameter of the annular convex platform I is greater than the diameter of the axle sleeve.
Preferably, junction, the buffer shaft and the annular convex platform II of the annular convex platform I and the buffer shaft
Junction and the junction of the annular convex platform II and the spline part be disposed as fillet.
Preferably, 5-10mm is arranged in the buffer shaft axial length, and is arranged cushion on the outside of the buffer shaft.
It preferably, further include oil guide groove, the oil guide groove is axially arranged along the buffer shaft, the depth of the buffer shaft
Gradually deepen along axial direction since one end close to the annular convex platform I, and the oil guide groove is bonded the annular convex platform I and ring
The through-hole communicated with the annular convex platform I and annular convex platform II is respectively set in the both ends of the surface of shape boss II.
The utility model is include at least the following beneficial effects:
End to end setting annular convex platform I, buffer shaft, annular convex platform II and flower in the spline shaft body of the utility model
Key teeth, axle sleeve is set in II outside of spline tooth and annular convex platform, and axle sleeve one end is butted on annular convex platform II close to annular convex platform I
End face on, therefore, when spline shaft body and axle sleeve are mutually arranged, spline tooth and axis tooth socket alignment intermeshing, due to elasticity
The annular convex platform II of setting is embedded in the first groove on sleeve lining, and spline tooth and axis tooth socket in rotary course can be prevented axial
Relative movement occurs for direction so that becoming to loosen to cause to reduce spline shaft body and the intermeshing precision of axle sleeve between the two
Degree, and then guarantee the more fastening for fixing spline tooth and axis tooth socket, axial direction stability can be improved；In addition, in axle sleeve and flower
When key shaft body is mutually arranged, due to the presence for the elastic device being arranged in the first groove bottom end blind hole, elastic device can be made
End is butted on II side of annular convex platform, realizes that spline tooth and the alignment of axis tooth socket are nibbled to be easy to rotate spline shaft body or axle sleeve
It closes, and elastic device is also beneficial to screw the stability after fastening holding engagement, can keep splined shaft body cross-section direction
Stability, and the friction of spline shaft body and shaft room hardness, and then holding two can be reduced with cushion performance when rotated
The engagement of high precision between person, is conducive to extend service life
The further advantage, target and feature of the utility model will be partially reflected by the following instructions, and part will also pass through
Research and practice to the utility model and be understood by the person skilled in the art.
Detailed description of the invention
Fig. 1 is structural schematic diagram when high precision splined shaft described in the utility model does not assemble completely；
Fig. 2 is the structural schematic diagram of axle sleeve described in the utility model；
Fig. 3 is the structural schematic diagram of elastic device described in the utility model.
Specific embodiment
The following describes the utility model in further detail with reference to the accompanying drawings, to enable those skilled in the art referring to explanation
Book text can be implemented accordingly.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more
The presence or addition of a other elements or combinations thereof.
As depicted in figs. 1 and 2, the utility model provides a kind of high precision splined shaft, including spline shaft body and is arranged
In the axle sleeve 106 of splined shaft outer body, which is characterized in that the spline shaft body includes the annular of successively end to end setting
Boss I 100, buffer shaft 104, annular convex platform II 101 and spline tooth 102, the spline tooth 102 include along the spline shaft body
Axial multiple groups rectangular teeth symmetrically arranged two-by-two, wherein in the axis direction perpendicular to the spline shaft body, any one group of institute
State the overall diameter that the maximum distance between the edge of rectangular teeth is less than the annular convex platform II 101；II 101 elasticity of annular convex platform
Setting, and the overall diameter of the annular convex platform II 101 is less than the overall diameter of the annular convex platform I 100；
The axle sleeve 106 is set in the outside of the spline tooth 102 and the annular convex platform II 101, and the axis
It covers 106 one end and is butted on the annular convex platform I 100 on the end face of the annular convex platform II 101；The axle sleeve 106 includes axis
Tooth socket 109, the first groove 107 and elastic device, the corresponding spline tooth 102 of the axis tooth socket 109 are axially disposed within the axis
It covers on 106 inner walls, and the spline tooth 102 is embedded in the axis tooth socket 109；First groove 107 corresponds to the annular
The setting of boss II 101 is in 106 inner wall of axle sleeve, and the diameter of the annular convex platform II 101 is greater than the interior straight of the axle sleeve 106
Diameter, so that the annular convex platform II 101 is embedded in first groove 107；The blind hole 108, it includes settings described the
One groove, 107 bottom surface it is multiple；The elastic device, one end are fixed at 108 bottom end of blind hole, and in no external force
Under effect, the elastic device other end stretches out the opening of the blind hole 108.
In the above scheme, spline shaft body include successively the annular convex platform I 100, buffer shaft 104 of end to end setting,
Annular convex platform II 101 and spline tooth 102, axle sleeve 106 are set in II 101 outside of spline tooth 102 and annular convex platform, and axle sleeve
106 one end is butted on annular convex platform I 100 on the end face of annular convex platform II 101, since the diameter of annular convex platform I 100 is big
In the diameter of annular convex platform II 101, and at the axis direction perpendicular to the spline shaft body, the edge of any one group of rectangular teeth
Between maximum distance be less than annular convex platform II 101 overall diameter, when so that axle sleeve 106 and spline shaft body being arranged, elasticity setting
Annular convex platform II 101 can enter axle sleeve 106 and be embedded in the first groove 107, and annular convex platform I 100 is fastened on axle sleeve
106 opening, while be intermeshed spline tooth 102 and axis tooth socket 109, annular convex platform I and 100 annular convex platform II 101
Setting can prevent spline tooth 102 and axis tooth socket 109 in rotary course from relatively moving along splined shaft ontology axial direction, and
Cause to reduce spline shaft body and the intermeshing precision of axle sleeve 106, therefore, annular convex platform I and 100 annular convex platform II 101
Setting realize improve axial direction stability；At least two blind hole 108 is also set up in 107 bottom end of the first groove, in blind hole
Elastic device is arranged in 108 bottom end, and without under external force, elastic device one end is fixed on 108 bottom end of blind hole, and the other end stretches out
The opening of blind hole 108 makes when on the spline tooth 102 and annular convex platform II 101 that are set in spline shaft body in axle sleeve 106
The end for obtaining elastic device stretching blind hole 108 is butted on II 101 side of annular convex platform, to be easy to rotate spline shaft body or axle sleeve
106 make 109 aligned engagement of spline tooth 102 and axis tooth socket, and elastic device is also beneficial to after screwing fastening holding engagement
Stability is mainly to maintain the stability in splined shaft body cross-section direction, and when rotated there is cushion performance can reduce
Rigid friction between spline shaft body and axle sleeve 106, and then the engagement of high precision between the two is kept, being conducive to extend makes
Use the service life.
Peripherally it is arranged in one preferred embodiment, on end face of the annular convex platform I 100 far from the annular convex platform II more
The mounting hole communicated with the fixation hole is arranged on corresponding 106 edge of axle sleeve in a fixation hole, the fixation hole, and described
The spline shaft body is fixedly connected by fixation hole with mounting hole by the screw of adaptation with axle sleeve 106.
In the above scheme, multiple fixations are peripherally set on end face of the annular convex platform I 100 far from the annular convex platform II
Hole, the mounting hole that setting is led to sincere Kongxiang on corresponding 106 edge of axle sleeve of fixation hole, to be set in axle sleeve in spline shaft body
It is by the screw being adapted to fixation hole and mounting hole that spline shaft body and axle sleeve 106 is fixed when 106 inside, it can assist improving
Stability after spline shaft body and the engagement of axle sleeve 106.
As shown in figure 3, the elastic device includes casing 110 and spring 111, described sleeve pipe 110 in a preferred embodiment
It is set as elastic cylinder, the elastic cylinder first end setting is open and is fixed on 108 bottom end of blind hole, the elastic cylinder
Second end closing is arranged and is set as the arc-shaped protrusion 112 of longitudal section；
The spring 111 is set in the inside of described sleeve pipe 110, and 111 both ends of the spring be separately fixed at it is described blind
108 bottom end of hole and raised 112 inner wall, described raised 112 are plugged on around II 101 side of annular convex platform setting
The second groove of annular in, and second groove is set as the arc-shaped groove body of longitudal section.
In the above scheme, elastic device includes casing 110 and spring 111, and casing 110 is set as elastic cylinder, be for
Facilitate 110 energy natural shrinking of casing, and the setting of resilient sleeve first end is open and is fixed on 108 bottom end of blind hole, second end closing
It is arranged and is set as the arc-shaped protrusion 112 of longitudal section, and spring 111 is set in inside casing 110, it is straight with spring free 111
It connects and II 101 hard contact of annular convex platform of elasticity setting is to damage annular convex platform II 101, be unfavorable for annular convex platform II 101
To fixed function.
In addition, the second groove is set around II 101 side of annular convex platform, and protrusion 112 is plugged in the second groove,
So that protrusion 112 and II 101 contact area of annular convex platform are bigger, be conducive to better stationary annular boss II 101, and then prevent
Spline shaft body further strengthens stability along the shaking in vertical axis direction, improves and keeps between spline shaft body and axle sleeve 106
High-precision engagement.
In one preferred embodiment, the overall diameter of the annular convex platform I 100 is greater than the overall diameter of the axle sleeve 106.
In the above scheme, the overall diameter of annular convex platform I 100 is greater than the overall diameter of axle sleeve 106, is for annular convex platform I 100
While capable of being fastened in the opening of axle sleeve 106, moreover it is possible to extend along outward opening, so that annular convex platform I 100 can be more firm
Be connected to opening, play the role of firm spline shaft body, while annular convex platform I 100 also being facilitated to be consolidated by screw
The operation of timing is implemented.
In one preferred embodiment, the junction of the annular convex platform I 100 and the buffer shaft 103, the buffer shaft 103
It is disposed as with the junction of the junction of the annular convex platform II 101 and the annular convex platform II 101 and the spline part
Fillet.
In the above scheme, junction, buffer shaft 103 and the annular convex platform II 101 of annular convex platform I 100 and buffer shaft 103
Junction and the junction of annular convex platform II 101 and spline part be disposed as fillet, it is whole that spline shaft body can be mitigated
The frictional force of each junction, and then whole raising stability.
In one preferred embodiment, 5-10mm, and 103 outer sheath of the buffer shaft is arranged in 103 axial length of buffer shaft
If cushion.
In the above scheme, 103 axial length of buffer shaft is set as 5-10mm, and annular convex platform II 101 is facilitated to enter axle sleeve
In 106, and buffer shaft 103 can also prevent from generating after hard contact between annular convex platform I 100 and annular convex platform II 101
Biggish frictional force, to influence the fixed effect of annular convex platform I 100 and annular convex platform II 101, and buffer shaft 103 is deposited
Realize that annular convex platform II 101 is connected to the operation in the first groove 107 also helping；The setting of cushion enhances buffer shaft
103 buffering effect.
It further include oil guide groove 104 in one preferred embodiment, the oil guide groove 104 is axially arranged along the buffer shaft 103,
The depth of the buffer shaft 103 is gradually deepened along axial direction since one end close to the annular convex platform I 100, and the Oil Guide
The both ends of the surface that slot 104 is bonded the annular convex platform I 100 and annular convex platform II 101 be respectively set with the annular convex platform I 100 and
The through-hole 105 that annular convex platform II 101 communicates.
In the above scheme, oil guide groove 104 is along the axial setting of buffer shaft 103, and depth is from close to annular convex platform I 100
One end starts gradually to deepen along axial direction and the setting of through-hole 105, and being can be by logical on annular convex platform I 100 for lubricating oil
Hole 105 is added, and enters 102 part of spline tooth followed by the through-hole 105 on oil guide groove 104, annular convex platform II 101, to carry out
It lubricates spline shaft body and axle sleeve 106 reduces friction, help to maintain high-precision engagement between spline shaft body and axle sleeve 106,
Prolong the service life.In addition, the process of lubricating oil is added, due to the mode of 104 depth of oil guide groove, avoid lubricating oil is bad from adding
Enter, circulating has some setbacks and sinuous flow phenomenon.
It is not only in the description and the implementation although the embodiments of the present invention have been disclosed as above
Listed utilization, it can be applied to various fields suitable for the present invention completely, for those skilled in the art,
Other modifications may be easily implemented, therefore without departing from the general concept defined in the claims and the equivalent scope, this reality
It is not limited to specific details and legend shown and described herein with novel.
Claims (7)
1. a kind of high precision splined shaft, including spline shaft body and it is set in the axle sleeve of splined shaft outer body, feature exists
In the spline shaft body includes annular convex platform I, buffer shaft, annular convex platform II and the spline tooth of successively end to end setting, institute
Stating spline tooth includes along the axial multiple groups rectangular teeth symmetrically arranged two-by-two of the splined shaft ontology, wherein perpendicular to the flower
The axis direction of key shaft body, the maximum distance between the edge of any group of rectangular teeth are less than the overall diameter of the annular convex platform II；
The II elasticity setting of annular convex platform, and the overall diameter of the annular convex platform II is less than the overall diameter of the annular convex platform I；
The axle sleeve, is set in the outside of the spline tooth and the annular convex platform II, and described axle sleeve one end be butted on it is described
Annular convex platform I is on the end face of the annular convex platform II；The axle sleeve includes axis tooth socket, the first groove and elastic device, institute
It states axis tooth socket and corresponds to the spline tooth and be axially disposed on the sleeve lining, and the spline tooth is embedded in the axis tooth socket；
First groove corresponds to the annular convex platform II and is arranged in the sleeve lining, and the diameter of the annular convex platform II is big
In the interior diameter of the axle sleeve, so that the annular convex platform II is embedded in first groove；The first groove floor setting
There are multiple blind holes；The elastic device, one end are fixed at the blind-hole bottom, and under no external force, the bullet
The property device other end stretches out the opening of the blind hole.
2. high precision splined shaft as described in claim 1, which is characterized in that the annular convex platform I is far from the convex annular
Multiple fixation holes are peripherally set on the end face of platform II, setting and the fixation on the corresponding axle sleeve edge of the fixation hole
The mounting hole that hole communicates, and the spline shaft body and axle sleeve are fixed by the screw of adaptation and are connected by the fixation hole and mounting hole
It connects.
3. high precision splined shaft as described in claim 1, which is characterized in that the elastic device includes casing and spring,
Described sleeve pipe is set as elastic cylinder, and the elastic cylinder first end setting is open and is fixed on the blind-hole bottom, the bullet
Property cylinder second end closing setting and be set as the arc-shaped protrusion of longitudal section；
The spring is set in the inside of described sleeve pipe, and the both ends of the spring is separately fixed at the blind-hole bottom and described convex
The inner wall risen, the protrusion are plugged in the second groove of annular of II side of annular convex platform setting, and described second
Groove is set as the arc-shaped groove body of longitudal section.
4. high precision splined shaft as described in claim 1, which is characterized in that the overall diameter of the annular convex platform I is greater than institute
State the overall diameter of axle sleeve.
5. high precision splined shaft as described in claim 1, which is characterized in that the annular convex platform I and the buffer shaft
The connection of junction, the junction of the buffer shaft and the annular convex platform II and the annular convex platform II and the spline tooth
Place is disposed as fillet.
6. high precision splined shaft as described in claim 1, which is characterized in that 5- is arranged in the buffer shaft axial length
10mm, and cushion is arranged on the outside of the buffer shaft.
7. high precision splined shaft as described in claim 1, which is characterized in that further include oil guide groove, the oil guide groove is along institute
Buffer shaft to be stated axially to be arranged, the depth of the buffer shaft is gradually deepened along axial direction from one end of the close annular convex platform I,
And the oil guide groove is bonded the annular convex platform I and the both ends of the surface of annular convex platform II are respectively set and the annular convex platform I and ring
The through-hole that shape boss II communicates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821962444.3U CN209705115U (en) | 2018-11-27 | 2018-11-27 | A kind of high precision splined shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821962444.3U CN209705115U (en) | 2018-11-27 | 2018-11-27 | A kind of high precision splined shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209705115U true CN209705115U (en) | 2019-11-29 |
Family
ID=68635704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821962444.3U Active CN209705115U (en) | 2018-11-27 | 2018-11-27 | A kind of high precision splined shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209705115U (en) |
-
2018
- 2018-11-27 CN CN201821962444.3U patent/CN209705115U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211206 Address after: 313000 Xin'an Zhen Yang Jiao Lang, Deqing County, Huzhou City, Zhejiang Province (Zhongnan hi tech. Yunhe Zhigu industrial park-10-01) Patentee after: Zhejiang Juchen Electromechanical Technology Co.,Ltd. Address before: No. 1, Wanyuan Road, Shushan street, Xiaoshan District Patentee before: HANGZHOU JUCHEN ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |