CN207728748U - A kind of splined shaft - Google Patents
A kind of splined shaft Download PDFInfo
- Publication number
- CN207728748U CN207728748U CN201721271319.3U CN201721271319U CN207728748U CN 207728748 U CN207728748 U CN 207728748U CN 201721271319 U CN201721271319 U CN 201721271319U CN 207728748 U CN207728748 U CN 207728748U
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- CN
- China
- Prior art keywords
- hollow hole
- annular groove
- splined shaft
- hole
- single order
- 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.)
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Abstract
The utility model discloses a kind of splined shaft, the splined shaft includes the axle body with spline, upper between the keyway and convex key that arc straight trough is arranged；Annular groove II is set in single order hollow hole, two keyways are added on hole wall, and be provided with annular groove I；And in the setting of spindle nose end there are two gear mass, the chamfering of 15 ° of setting in the flank profil of the gear mass.By improving the abrasion that can be reduced in axis operational process above, prolong the service life.
Description
Technical field
The utility model is related to a kind of axis, more specifically, it relates to a kind of splined shaft.
Background technology
Splined shaft requires the external portion to being sleeved on splined shaft as the parts for transmitting mechanical torque, majority of case
Part carries out precision positioning, however the splined shaft of the prior art only processes keyway and convex key part so that in the course of work
Occur prodigious abrasion between external component and splined shaft, or even directly results in spline damage.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of anti abrasive splined shafts.
To achieve the above object, the utility model provides following technical solution：A kind of splined shaft, including a band spline
Axle body, the both sides of axle body are respectively spindle nose and axis tail；The keyway extends to axis tail by axle body, and in the axis
There are four the threaded holes by even circumferential distribution for setting on the end face of tail.In the spindle nose end face, there are one stepped hole, ranks for setting
Terraced hole is made of not through entire axis, the stepped hole single order hollow hole, second order hollow hole, three rank hollow holes, hollow hole
Aperture is gradually reduced from outside to inside.Annular groove II is embedded between the side and bottom face of the single order hollow hole, it is described
Deep equality of the annular groove II embedded in the side depth and embedded single order hollow hole bottom surface of single order hollow hole；And control is in 0.2cm
Between~0.5cm, including extreme value.It is provided with chamfering between the annular groove II and single order hollow hole side and bottom face, institute
It is 45 ° to state chamfer angle, and in single order hollow hole setting there are one annular groove I, and the groove bottom of the annular groove I with
It is provided with fillet between two slot sides.The keyway of the splined shaft is respectively arranged with camber straight trough with convex key junction, described
The width L of arc straight trough and the ratio between the depth H of arc groove be 0.25≤L/H≤0.18.
Further, gear mass I and gear mass II, the gear mass are respectively arranged at the spindle nose end of the splined shaft
I and gear mass II be 15 ° of chamfering back to being both provided with gradient in the flank profil of axis tail, and be arranged in the single order hollow hole
There are 2 keyways being distributed by circular shaft.
The deficiencies in the prior art are compared, advantageous effect caused by technical solution provided by the invention：By in splined shaft
Upper setting arc straight trough can reduce abrasion of axis during transmitting torque；Annular groove II is set in single order hollow hole, it can
To reduce the abrasion between axis and the component of axis cooperation, two keyways of addition must can effectively transmit torque, in the flank profil of gear
The damage of 15 ° of chamfering is set when can preferably reduce gear engagement noise and mesh tooth face.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model embodiment；
Fig. 2 is the enlarged drawing at I in Fig. 1；
Fig. 3 is the enlarged drawing at II in Fig. 1；
Fig. 4 is the enlarged drawing at III in Fig. 1；
Fig. 5 is the schematic cross-sectional view of A-A in Fig. 1；
Label and corresponding parts title in attached drawing：1- axle bodies, 2- gear masses I, 3- single orders hollow hole, 4- second orders are hollow
Hole, tri- rank hollow holes of 5-, 6- threaded holes, 7- flank profils, 8- annular grooves I, 9- annular grooves II, 10- arcs straight trough, 11- gear masses II,
12- keyways, 13- axis tail, 14- spindle noses.
Specific implementation mode
One embodiment of the utility model is described further referring to figs. 1 to Fig. 5.
A kind of splined shaft as shown in Figure 1, includes an axle body 1 with spline, the both sides of axle body 1 be respectively spindle nose 14 with
Axis tail 13；The keyway extends to axis tail 13 by axle body 1；And there are four press for setting on the end face of the axis tail 13
6 hole of screw thread of even circumferential distribution, for being fixed or connecting to axis, four threaded holes 6 make axis stress evenly.Described
There are one stepped holes for the setting of 14 end face of spindle nose, and stepped hole is not through entire axis, and the stepped hole is by single order hollow hole 3, second order
Hollow hole 4, three rank hollow holes 5 composition, the aperture of hollow hole is gradually reduced from outside to inside.In the side of the single order hollow hole 3
As shown in Figure 2 embedded with annular groove II 9 between face and bottom face, the annular groove II 9 is embedded in the side depth of single order hollow hole 3
With the deep equality of 3 bottom surface of embedded single order hollow hole；And control between 0.2cm~0.5cm, including extreme value；Annular groove II 9 can
To lower axis and be assemblied in the abrasion for squeezing and generating between the part in axis hole.The annular groove II 9 and single order hollow hole 3
Chamfering is provided between side and bottom face, the chamfer angle is 45 °.And there are one annulars for setting in single order hollow hole 3
Slot I 8, and it is as shown in Figure 3 between the groove bottom of the annular groove I 8 and two slot sides to be provided with fillet.The splined shaft
Keyway and convex key junction be respectively arranged with camber straight trough 10 as shown in figure 5, the arc straight trough 10 width L and arc
The ratio between the depth H of shape straight trough 10 is 0.25≤L/H≤0.18, and arc straight trough 10 can lower axis and drive in axle sleeve motion process
Abrasion, the process that the axle sleeve of the cooperation with axis can also save tooth top chamfering.
2 keyways 12 being distributed by circular shaft are provided in the single order hollow hole.In the spindle nose of the splined shaft
14 ends are respectively arranged with gear mass I 2 and gear mass II 11；Flank profil 7 of the gear mass I 2 and gear mass II 11 back to axis tail
On to be both provided with gradient be 15 ° of chamfering as shown in figure 4, the flank profil chamfering can preferably avoid making due to small colliding with
Noise and damage mesh tooth face are generated at flank of tooth protrusion.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, the skill of this field
Art personnel carry out common variations and alternatives within the scope of technical solutions of the utility model should be included in the guarantor of the utility model
It protects in range.
Claims (2)
1. a kind of splined shaft includes an axle body (1) with spline, the both sides of axle body (1) are respectively spindle nose (14) and axis tail
(13), it is characterized in that：The threaded hole (6) being distributed by even circumferential there are four settings on the end face of the axis tail (13),
There are one stepped hole, stepped hole is hollow by single order hollow hole (3), second order hollow hole (4), three ranks for spindle nose (14) the end face setting
Hole (5) forms；Annular groove II (9), the annular groove are embedded between the side and bottom face of the single order hollow hole (3)
Chamfering is provided between II (9) and single order hollow hole side and bottom face, the chamfer angle is 45 °；The key of the splined shaft
Slot and convex key junction are respectively set that there are one circular arc type grooves (10).
2. a kind of splined shaft according to claim 1, it is characterized in that：Spindle nose (14) end is provided with gear mass I
(2) with gear mass II (11), the gear mass I (2) and gear mass II (11) back to being respectively set in the flank profil of axis tail (13)
Gradient is 15 ° of chamfering；2 keyways being distributed by circular shaft (12) are provided in the single order hollow hole (3), and one
Setting is provided with fillet there are one annular groove I (8) on the slot bottom of the annular groove I (8) in rank hollow hole (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721271319.3U CN207728748U (en) | 2017-09-29 | 2017-09-29 | A kind of splined shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721271319.3U CN207728748U (en) | 2017-09-29 | 2017-09-29 | A kind of splined shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207728748U true CN207728748U (en) | 2018-08-14 |
Family
ID=63090928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721271319.3U Active CN207728748U (en) | 2017-09-29 | 2017-09-29 | A kind of splined shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207728748U (en) |
-
2017
- 2017-09-29 CN CN201721271319.3U patent/CN207728748U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |