CN205298234U - Gearbox initiative bevel pinion shaft - Google Patents

Gearbox initiative bevel pinion shaft Download PDF

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Publication number
CN205298234U
CN205298234U CN201520959672.5U CN201520959672U CN205298234U CN 205298234 U CN205298234 U CN 205298234U CN 201520959672 U CN201520959672 U CN 201520959672U CN 205298234 U CN205298234 U CN 205298234U
Authority
CN
China
Prior art keywords
shaft body
gear
teeth
bevel pinion
gear shaft
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
Application number
CN201520959672.5U
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Chinese (zh)
Inventor
肖登强
马健
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.)
CHONGQING KANGTIAN GEAR Co Ltd
Original Assignee
CHONGQING KANGTIAN GEAR Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CHONGQING KANGTIAN GEAR Co Ltd filed Critical CHONGQING KANGTIAN GEAR Co Ltd
Priority to CN201520959672.5U priority Critical patent/CN205298234U/en
Application granted granted Critical
Publication of CN205298234U publication Critical patent/CN205298234U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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  • General Details Of Gearings (AREA)

Abstract

The utility model discloses a gearbox initiative bevel pinion shaft, including the gear shaft body, the one end of gear shaft body is equipped with conical gear, the other end is equipped with the connector, and is equipped with on the periphery wall of gear shaft body and is located external splines between conical gear and the connector, this internal central through hole that is equipped with of gear shaft, the central through hole is located the tip of conical gear place side is equipped with the internal thread, and is equipped with radial oilhole I and radial oilhole II on the central through hole inner wall, radial oilhole I with the external splines communicates with each other, radial oilhole II with be located the external splines with gear shaft body periphery wall between the conical gear communicates with each other, the external splines is close to the tip of connector place side is equipped with the engaging tooth section, and all meshing spline tooths of engaging tooth section are all established to the back taper tooth, the width of back taper tooth along the connector is directional conical gear's direction reduces gradually, just the back taper flank of tooth to be equipped with the arc envelope face that forms by circular arc chamfering on the terminal surface of connector.

Description

Change speed gear box is bevel pinion shaft actively
Technical field
This utility model belongs to gear transmission technology field, is specifically related to a kind of change speed gear box actively bevel pinion shaft.
Background technology
Change speed gear box is made up of gear and axle, produces variable-speed torque-converting by different gear combination, and its function mainly has: 1, change gear ratio; 2, in the constant situation of hand engine rotation, automobile is made can to fall back traveling; 3, utilize neutral, interrupt power transmission, to enable the engine to starting, idling, and be easy to shifting of transmission or carry out power output. Bevel gear is used for changing directions of torque transfer, although existing bevel gear shaft disclosure satisfy that instructions for use to a certain extent, but, the shortcoming such as bite, collision is had when still suffering from lack of lubrication and engage with other tooth-shape structures, cause cannot hanging shelves smoothly, problem easily out of supply is there is also from bevel gear shaft it addition, existing.
Summary of the invention
In view of this, the purpose of this utility model is in that to provide a kind of change speed gear box actively bevel pinion shaft, can not only improve lubricant effect, and more smooth out when engaging with other profiles of tooth, can't be out of supply.
For reaching above-mentioned purpose, this utility model provides following technical scheme:
A kind of change speed gear box actively bevel pinion shaft, including gear shaft body, one end of described gear shaft body is provided with conical gear, the other end is provided with union joint, and is provided with the external splines between described conical gear and union joint on the periphery wall of described gear shaft body; Described gear shaft is originally internal is provided with central through hole, described central through hole is positioned at the end of side, described conical gear place and is provided with female thread, and described central through hole inwall is provided with radial direction oil hole I and radial direction oil hole II, described radial direction oil hole I communicates with described external splines, and described radial direction oil hole II communicates with the gear shaft body peripheral wall between described external splines with described conical gear; Described external splines is provided with engaging tooth segment near the end of side, described union joint place, all mesh splines teeth of described engaging tooth segment are all set to teeth, the direction that the width of described teeth points to described conical gear along described union joint is gradually reduced, and described teeth is provided with, towards the end face of described union joint, the arc envelope face formed by circular arc chamfering.
Further, described radial direction oil hole I annular is laid with at least two; Described radial direction oil hole II annular is laid with at least two.
Further, described teeth is arranged axisymmetricly.
Further, the angle between the dual-side in the cross section that also parallel with the axis of the described gear shaft body plane of the described teeth plane of symmetry intercepts on corresponding described teeth is fallen in all equal.
Further, the external diameter in described arc envelope face is gradually reduced along the radially outward direction of described gear shaft body.
Further, seamlessly transit between described arc envelope face with the two side of corresponding described teeth.
Further, the line of symmetry in described arc envelope face is the oblique line being inclined to set relative to the axis of described gear shaft body.
Further, in described arc envelope face, the center of circle of all circular arcs is respectively positioned on the straight line vertical with the axis of described gear shaft body.
The beneficial effects of the utility model are in that:
Change speed gear box of the present utility model is bevel pinion shaft actively, by arranging central through hole, and arranges radial direction oil hole I and radial direction oil hole II in central through hole, and so, lubricating oil can enter external splines and spiral bevel gear smoothly through central through hole, to improve lubricant effect; By arranging engaging tooth segment on external splines, and by teeth that the mesh splines tooth of engaging tooth segment is arranged, it is ensured that will not be out of supply; And by arranging the arc envelope face formed by circular arc chamfering on teeth, when external splines engages with other tooth-shape structures extension shelves, existence due to this arc envelope face, even if the position between mesh splines tooth and the gear teeth of other tooth-shape structures of engaging tooth segment is unjustified, this arc envelope face also can produce a tangential component, make the slip that the gear teeth smooth out along this arc envelope face, and finally realize hanging shelves engagement.
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and beneficial effect clearly, this utility model provides drawings described below to illustrate:
Fig. 1 is the structural representation of this utility model change speed gear box actively bevel pinion shaft embodiment;
Fig. 2 is the A detail drawing of Fig. 1;
Fig. 3 is the top view of Fig. 2;
Fig. 4 is the B-B sectional view of Fig. 2.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, so that those skilled in the art can be better understood from this utility model and can be practiced, but illustrated embodiment is not as to restriction of the present utility model.
As it is shown in figure 1, be the structural representation of this utility model change speed gear box actively bevel pinion shaft embodiment. The present embodiment change speed gear box is bevel pinion shaft actively, and including gear shaft body 1, one end of gear shaft body 1 is provided with conical gear 2, the other end is provided with union joint 3, and is provided with the external splines 4 between conical gear 2 and union joint 3 on the periphery wall of gear shaft body 1. Central through hole 5 it is provided with in gear shaft body 1, central through hole 5 is positioned at the end of side, conical gear 2 place and is provided with female thread 6, and central through hole 5 inwall is provided with radial direction oil hole I 7 and radial direction oil hole II 8, radial direction oil hole I 7 communicates with external splines 4, radial direction oil hole II 8 communicates with gear shaft body 1 periphery wall between external splines 4 with conical gear 2, to improve lubricant effect. Radial direction oil hole I 7 annular is laid with at least two; Radial direction oil hole II 7 annular is laid with at least two, and all annular is uniform is set to two for the radial direction oil hole I 7 of the present embodiment and radial direction oil hole II 8. The external splines 4 of the present embodiment is provided with engaging tooth segment 9 near the end of side, union joint 3 place, all mesh splines teeth of engaging tooth segment 9 are all set to teeth, the direction that the width of teeth points to conical gear 2 along union joint 3 is gradually reduced, and teeth is provided with, towards the end face of union joint 3, the arc envelope face 10 formed by circular arc chamfering.
Further, the teeth of the present embodiment is arranged axisymmetricly, falls in the angle between the dual-side in the cross section that also parallel with the axis of gear shaft body 1 plane of the teeth plane of symmetry intercepts on corresponding teeth all equal. Angle �� between the dual-side in the cross section that the present embodiment falls in the teeth plane of symmetry and the plane parallel with the axis of gear shaft body 1 intercepts on corresponding teeth is 7 ��, ensure teeth intensity meanwhile, it is capable to avoid out of supply better.
Further, the external diameter in the arc envelope face 10 of the present embodiment is gradually reduced along the radially outward direction of gear shaft body 1, and seamlessly transits between arc envelope face 10 with the two side of corresponding teeth. The line of symmetry in the arc envelope face 10 of the present embodiment is the oblique line being inclined to set relative to the axis of gear shaft body 1, and the angle �� between the axis of the line of symmetry in arc envelope face 10 and gear shaft body 1 is 80 ��, in arc envelope face 10, the center of circle of all circular arcs is respectively positioned on the straight line vertical with the axis of gear shaft body 1.
The change speed gear box of the present embodiment is bevel pinion shaft actively, by arranging central through hole, and arranges radial direction oil hole I and radial direction oil hole II in central through hole, and so, lubricating oil can enter external splines and spiral bevel gear smoothly through central through hole, to improve lubricant effect; By arranging engaging tooth segment on external splines, and by teeth that the mesh splines tooth of engaging tooth segment is arranged, it is ensured that will not be out of supply; And by arranging the arc envelope face formed by circular arc chamfering on teeth, when external splines engages with other tooth-shape structures extension shelves, existence due to this arc envelope face, even if the position between mesh splines tooth and the gear teeth of other tooth-shape structures of engaging tooth segment is unjustified, this arc envelope face also can produce a tangential component, make the slip that the gear teeth smooth out along this arc envelope face, and finally realize hanging shelves engagement.
Embodiment described above is only the preferred embodiment lifted for absolutely proving this utility model, and protection domain of the present utility model is not limited to this. Equivalent replacement that those skilled in the art make on this utility model basis or conversion, all within protection domain of the present utility model. Protection domain of the present utility model is as the criterion with claims.

Claims (8)

1. a change speed gear box actively bevel pinion shaft, it is characterized in that: include gear shaft body, one end of described gear shaft body is provided with conical gear, the other end is provided with union joint, and is provided with the external splines between described conical gear and union joint on the periphery wall of described gear shaft body; Described gear shaft is originally internal is provided with central through hole, described central through hole is positioned at the end of side, described conical gear place and is provided with female thread, and described central through hole inwall is provided with radial direction oil hole I and radial direction oil hole II, described radial direction oil hole I communicates with described external splines, and described radial direction oil hole II communicates with the gear shaft body peripheral wall between described external splines with described conical gear; Described external splines is provided with engaging tooth segment near the end of side, described union joint place, all mesh splines teeth of described engaging tooth segment are all set to teeth, the direction that the width of described teeth points to described conical gear along described union joint is gradually reduced, and described teeth is provided with, towards the end face of described union joint, the arc envelope face formed by circular arc chamfering.
2. change speed gear box according to claim 1 actively bevel pinion shaft, it is characterised in that: described radial direction oil hole I annular is laid with at least two; Described radial direction oil hole II annular is laid with at least two.
3. change speed gear box according to claim 1 actively bevel pinion shaft, it is characterised in that: described teeth is arranged axisymmetricly.
4. change speed gear box according to claim 3 actively bevel pinion shaft, it is characterised in that: fall in the angle between the dual-side in the cross section that also parallel with the axis of the described gear shaft body plane of the described teeth plane of symmetry intercepts on corresponding described teeth all equal.
5. the actively bevel pinion shaft of the change speed gear box according to any one of claim 1-4, it is characterised in that: the external diameter in described arc envelope face is gradually reduced along the radially outward direction of described gear shaft body.
6. change speed gear box according to claim 5 actively bevel pinion shaft, it is characterised in that: seamlessly transit between described arc envelope face with the two side of corresponding described teeth.
7. change speed gear box according to claim 6 actively bevel pinion shaft, it is characterised in that: the line of symmetry in described arc envelope face is the oblique line being inclined to set relative to the axis of described gear shaft body.
8. change speed gear box according to claim 1 actively bevel pinion shaft, it is characterised in that: in described arc envelope face, the center of circle of all circular arcs is respectively positioned on the straight line vertical with the axis of described gear shaft body.
CN201520959672.5U 2015-11-27 2015-11-27 Gearbox initiative bevel pinion shaft Expired - Fee Related CN205298234U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520959672.5U CN205298234U (en) 2015-11-27 2015-11-27 Gearbox initiative bevel pinion shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520959672.5U CN205298234U (en) 2015-11-27 2015-11-27 Gearbox initiative bevel pinion shaft

Publications (1)

Publication Number Publication Date
CN205298234U true CN205298234U (en) 2016-06-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520959672.5U Expired - Fee Related CN205298234U (en) 2015-11-27 2015-11-27 Gearbox initiative bevel pinion shaft

Country Status (1)

Country Link
CN (1) CN205298234U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106812778A (en) * 2015-11-27 2017-06-09 重庆康田齿轮有限公司 Gearbox active bevel pinion shaft
CN108569084A (en) * 2017-03-10 2018-09-25 阿文美驰技术有限责任公司 Vehicle bridge component with driving pinion and bearing pre-tightened element

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106812778A (en) * 2015-11-27 2017-06-09 重庆康田齿轮有限公司 Gearbox active bevel pinion shaft
CN108569084A (en) * 2017-03-10 2018-09-25 阿文美驰技术有限责任公司 Vehicle bridge component with driving pinion and bearing pre-tightened element

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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: 20160608

Termination date: 20161127

CF01 Termination of patent right due to non-payment of annual fee