CN205173407U - Rear axle driving gear - Google Patents
Rear axle driving gear Download PDFInfo
- Publication number
- CN205173407U CN205173407U CN201520904548.9U CN201520904548U CN205173407U CN 205173407 U CN205173407 U CN 205173407U CN 201520904548 U CN201520904548 U CN 201520904548U CN 205173407 U CN205173407 U CN 205173407U
- Authority
- CN
- China
- Prior art keywords
- bevel gear
- face
- driving gear
- section
- bearing construction
- 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
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- Gear Transmission (AREA)
- Gears, Cams (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
Abstract
The utility model discloses a rear axle driving gear, including the perpendicular axle that extends of bevel gear and edge bevel gear's positioning end face, characterized by: the axle is distributed in proper order to its end by positioning end face and has spacing section, first bearing construction section, spline portion and connecting portion, the relative positioning end face's of bevel gear opposite side is equipped with second bearing construction section, be equipped with annular transition district between connecting portion and the spline portion, annular transition district is curved ring channel by the round cross -section and the round scarf is constituteed, spline portion diameter is greater than connecting portion, and spline portion terminal surface is connected to the ring channel, and scarf one end is tangent with the ring channel, and the other end links to each other with connecting portion. This scheme provides a rear axle driving gear, operation small in noise, and fatigue resistance is good.
Description
Technical field
The utility model relates to a kind of back axle driving gear, belongs to engagement driving part field.
Background technique
Main speed reducer of rear axle is the critical piece reducing rotating speed in automotive transmission, increase moment of torsion.Main speed reducer of rear axle is the direction of transfer realizing slowing down and changing power by one group of helicon gear pair, and helicon gear pair comprises initiatively angular wheel and driven angular wheel, and both are meshed transferring power.Helicon gear pair structure is simple, quality is little, compact dimensions, can realize transmission of power, changes rotating speed, changes the functional objectives such as direction of transfer with less cost.
Application number be 201320479162.9 utility model patent disclose a kind of active angular wheel of main speed reducer of rear axle, it comprises bevel gear and the vertically extending axle of location end face along bevel gear, described axle comprises clutch shaft bearing installation position, transition zone, the second bearing installation position, spline part and joint by locating end face successively to its end, and the surface of described transition zone is inclined-plane along the axial direction of axle.The active angular wheel of this main speed reducer of rear axle, transition zone between clutch shaft bearing installation position and the second bearing installation position is adopted inclined-plane, substituted for existing step transition, initiatively angular wheel is made to be arranged on casing by bearing, and increase with the stress surface that passive angular wheel engages each other transition zone in operation process, the force dispersion of transition zone, strengthens the fatigue resistance of the axle of initiatively angular wheel, thus extends the working life of initiatively angular wheel.But because its clutch shaft bearing installation position, the second bearing installation position are all in bevel gear the same side, still there is one-sided excessive location and cause initiatively angular wheel to run steadily, easily rock, the shortcoming that noise is large.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of back axle driving gear, and running noises is little, and fatigue resistance is good.
For achieving the above object, the utility model provides following technological scheme: a kind of back axle driving gear, comprise bevel gear and the vertically extending axle of location end face along bevel gear, it is characterized in that: described axle is distributed with spacing section by locating end face successively to its end, clutch shaft bearing construction section, spline part and joint, the opposite side of described bevel gear relative positioning end face is provided with the second bearing construction section, annular transitional district is provided with between described joint and spline part, the circular groove and one that described annular transitional district is arc by a ring cross-section encloses scarf and forms, described spline part diameter is greater than joint, circular groove connects spline part end face, scarf one end and circular groove tangent, the other end is connected with joint.
Preferably, the angle of inclination of described scarf is 20 °, and the radius of described circular groove is 2.5mm.
Preferably, locate with bevel gear the annular ditch that end face intersection is provided with indent for described spacing section.
Preferably, described clutch shaft bearing construction section, bevel gear, the second bearing construction section three in one forging form.
By adopting technique scheme, two bearing construction sections being separately positioned on bevel gear both sides, avoiding one-sided excessive location, whole angular wheel is installed more reliable and more stable simultaneously, and not easily rock, fatigue performance is good, ensure that the reliability that angular wheel is installed; Be provided with annular transitional district between joint and spline part, by annular transitional district, part mesh vibration is sponged, running noises is little, does not affect again effective transmission of torque.
Accompanying drawing explanation
Fig. 1 is the parts drawing of the utility model gear;
Fig. 2 is the enlarged view at A place in the utility model Fig. 1;
Fig. 3 is the enlarged view at B place in the utility model Fig. 2.
Accompanying drawing illustrates: 1, bevel gear; 2, spacing section; 3, clutch shaft bearing construction section; 4, spline part; 5, annular transitional district; 5a, circular groove; 5b, scarf; 6, joint; 7, the second bearing construction section; 8, annular ditch.
Embodiment
A kind of back axle driving gear, comprise bevel gear 1 and the vertically extending axle of location end face along bevel gear 1, axle is distributed with spacing section 2 by locating end face successively to its end, clutch shaft bearing construction section 3, spline part 4 and joint 6, the opposite side of described bevel gear 1 relative positioning end face is provided with the second bearing construction section 7, annular transitional district 5 is provided with between described joint 6 and spline part 4, circular groove 5a and the one circle scarf 5b that described annular transitional district 5 is arc by a ring cross-section forms, described spline part 4 diameter is greater than joint 6, circular groove 5a connects spline part 4 end face, scarf 5b one end and circular groove 5a tangent, the other end is connected with joint 6.Two bearing construction sections are separately positioned on bevel gear 1 both sides, avoid one-sided excessive location, whole angular wheel is installed more reliable and more stable simultaneously, and not easily rock, fatigue performance is good, ensure that the reliability that angular wheel is installed; Be provided with annular transitional district 5 between joint 6 and spline part 4, by annular transitional district 5, part mesh vibration is sponged, running noises is little, does not affect again effective transmission of torque.
Wherein, the angle of inclination of scarf is 20 °, and the radius of circular groove 5a is 2.5mm.This size can the vibration that passes over of absorption maximum spline part 4, and 20 ° of comparatively sliding slopes can sponge Stress transmit fast to joint 6, reduce the impact vibrated bevel gear 1.The annular ditch 8 that end face intersection is provided with indent is located for spacing section 2 with bevel gear 1.Spacing section of 2 diameters are a bit larger tham clutch shaft bearing mounting end, be used for positioning position of bearings, it, as the part directly contacting conical tooth, arranges annular ditch 8 at intersection, can avoid producing stress in angle to concentrate, ensure the relative position degree of spacing section 2 and conical tooth; The forging of clutch shaft bearing construction section 3, bevel gear 1, second bearing construction section 7 three in one forms.One forging structure intensity is good, avoids the coaxiality error cooperatively interacting and produce.
Claims (4)
1. a back axle driving gear, comprise bevel gear and the vertically extending axle of location end face along bevel gear, it is characterized in that: described axle is distributed with spacing section by locating end face successively to its end, clutch shaft bearing construction section, spline part and joint, the opposite side of described bevel gear relative positioning end face is provided with the second bearing construction section, annular transitional district is provided with between described joint and spline part, the circular groove and one that described annular transitional district is arc by a ring cross-section encloses scarf and forms, described spline part diameter is greater than joint, circular groove connects spline part end face, scarf one end and circular groove tangent, the other end is connected with joint.
2. back axle driving gear according to claim 1, is characterized in that: the angle of inclination of described scarf is 20 °, and the radius of described circular groove is 2.5mm.
3. back axle driving gear according to claim 2, is characterized in that: locate with bevel gear the annular ditch that end face intersection is provided with indent for described spacing section.
4. back axle driving gear according to claim 3, is characterized in that: described clutch shaft bearing construction section, bevel gear, the second bearing construction section three in one forging form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520904548.9U CN205173407U (en) | 2015-11-12 | 2015-11-12 | Rear axle driving gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520904548.9U CN205173407U (en) | 2015-11-12 | 2015-11-12 | Rear axle driving gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205173407U true CN205173407U (en) | 2016-04-20 |
Family
ID=55737402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520904548.9U Expired - Fee Related CN205173407U (en) | 2015-11-12 | 2015-11-12 | Rear axle driving gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205173407U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273999A (en) * | 2019-05-28 | 2019-09-24 | 淮南巧天机械设备技术有限公司 | A kind of gearbox active bevel pinion shaft |
-
2015
- 2015-11-12 CN CN201520904548.9U patent/CN205173407U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273999A (en) * | 2019-05-28 | 2019-09-24 | 淮南巧天机械设备技术有限公司 | A kind of gearbox active bevel pinion shaft |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20161112 |