CN201264129Y - Differential structure of gear hobbing machine - Google Patents
Differential structure of gear hobbing machine Download PDFInfo
- Publication number
- CN201264129Y CN201264129Y CNU2008201625912U CN200820162591U CN201264129Y CN 201264129 Y CN201264129 Y CN 201264129Y CN U2008201625912 U CNU2008201625912 U CN U2008201625912U CN 200820162591 U CN200820162591 U CN 200820162591U CN 201264129 Y CN201264129 Y CN 201264129Y
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- gear
- output shaft
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- shaft
- transition
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- 230000007704 transition Effects 0.000 claims abstract description 43
- 230000001360 synchronised effect Effects 0.000 claims description 7
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 230000000295 complement effect Effects 0.000 claims description 2
- 230000008676 import Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
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Abstract
The utility model relates to a gear hobbing machine differential device which solves the defects that the structure in the prior art is more complex and is easy to produce the noiseand comprises an output shaft, differential shafts, and gears connected between the differential shafts and the output shaft, wherein the differential shafts are arranged at the periphery of the output shaft to form a surrounding structure, the differential shafts are parallel to the shaft line of the output shaft; the gears comprise an output gear, an input gear, planet gears and a transition gear, the output gear is connected or disconnected with the output shaft through a joint, and the planet gears are connected with the input gear through the transition gear. The differential shafts are symmetrically arranged around the output shaft, the planet gears on the two pairs of differential shafts are arranged according to the opposite directions and are respectively meshed with different gears on the output shaft so as to cause the structure to be compact and shorten the size of a differential structure. The gear hobbing machine differential device has small drive noise and stable drive, and can improve the drive precision through the mutual matching installation of bearings.
Description
Technical field
The utility model relates to a kind of gear-hobbing machine difference structure, belongs to the technical field of gear cutting machine.
Background technology
Gear-hobbing machine is when the processing helical teeth, and therefore workbench need need be provided with difference structure and realize differential feed around the axis of workpiece revolution between workbench and hob head.On September 13rd, 2006, the notification number of bulletin was the document of CN2816499Y, a kind of patent of gear-hobbing machine transmission system differential attachment is disclosed, it is located between gear box output end and workbench dividing spindle, change gear through-drive between the output of differential shaft and workbench dividing spindle, described differential shaft be provided with the output shaft of gearbox by the synchronous bevel gear of output gear and input meshed transmission gear and the bevel type differential gear that rotates synchronously with differential shaft, differential shaft between described synchronous bevel gear and bevel type differential gear is provided with cross axle, this cross axle be provided with two coaxial settings and simultaneously with the bevel planet gear of bevel type differential gear engagement, the axis of described two bevel planet gears and the axis normal of differential shaft, differential shaft is provided with the differential gearing that different with it portions rotate, but this difference structure overall dimensions is bigger, bigger installing space need be occupied, and when work, noise can be produced.
Summary of the invention
The purpose of this utility model provides a kind of gear-hobbing machine difference structure of differential feed between workbench and the hob head can realize Gear Processing the time, has solved prior art structure more complicated, is easy to generate the shortcoming of noise.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of gear-hobbing machine difference structure, comprise the gear between output shaft, differential shaft and connection differential shaft and the output shaft, wherein differential shaft is arranged on the output shaft periphery, forms to surround structure, and differential shaft is parallel with the axis of output shaft; Described gear comprises input gear, output gear, planetary gear and transition gear, be connected by a joint element between output gear and the output shaft or disconnect, planetary gear with import gear and be connected by transition gear.Joint element can move on output shaft, can control the rotation of differential shaft and output shaft by zygosporic mobile control, can improve transmission accuracy by being meshing with each other of gear, and the installation of gear adopts bearing can guarantee the accuracy and the stationarity of transmission.
Totally four of differential shafts are divided into two groups of symmetric arrangement, and differential shaft is arranged on the spoke of output gear, rotate around output shaft synchronously with output gear, and differential shaft is provided with can be around the planetary gear of differential shaft rotation.Symmetric arrangement can reduce vibrations, reduces noise, makes transmission more steady.
The length of the planetary gear teeth is less than the length of planetary gear body, and arranges near planetary end, during layout two pairs of planetary gear teeth towards difference, with a pair of planetary gear teeth towards identical.
Output shaft is provided with convex shoulder, and a side of convex shoulder is provided with output gear by two row angular contact thrust bearings, and opposite side is fixed with the synchromesh gear that rotates synchronously with output shaft; The sheathed transition gear in one side of synchromesh gear is provided with axial thrust bearing and is arranged on positioning sleeve between axial thrust bearing inner ring and the synchromesh gear between synchromesh gear and the transition gear.
The inner surface of transition gear is provided with step surface, the length of step surface is greater than half of transition gear height, transition gear is fixed on the axle journal of output shaft by two row angular contact thrust bearings, a pair of angular contact thrust bearing is arranged on the end of step surface, another is to being arranged on the root of step surface, the transition gear other end is a hanging structure and by axial thrust bearing and synchromesh gear location, is provided with spacer between the two row angular contact thrust bearings; The unsettled end excircle of transition gear is provided with the gear teeth, the other end be the light face and with the input gear fix.
Planetary gear relative mistake moving axis is divided into two groups, one group is synchronous planetary gear, another group is for the transition planetary gear, and the synchronous planetary gear teeth are relative with synchromesh gear and be meshed with synchromesh gear, and the planetary gear teeth of transition are relative with transition gear and be meshed with transition gear.
Planetary end face has been provided with differential bracket, differential bracket is nested with on the differential shaft and by being nested with the adjustment cover location on differential shaft, differential bracket is a hierarchic structure, the width of inner ring is less than the width of outer ring, and on cascaded surface, being provided with angular contact bearing, the end face of angular contact bearing inner ring withstands the end face of input gear.
Differential shaft is provided with boss, boss one side is connected with output gear, opposite side is provided with planetary gear by angular contact thrust bearing, and planetary inwall is provided with contact thrust bearing location, locating ring diagonal angle, and boss on the differential shaft and the convex shoulder on the output shaft are same unilateral.
Joint element is connected on the output shaft by flat key, and zygosporic outer face is a flange face, is fixed with fixed cover on output shaft and the end face that joint element is connected, and fixed cover and joint element complement each other to form the key syndeton.Joint element moves on output shaft, and zygosporic outer circumference surface and fixed cover are thrown off, and output shaft and output gear are thrown off.
The end that output shaft is opposite with joint element is a circular cone, and is equipped with the centripetal thrust force roller bearing in the outer cover of transition gear, and the inner ring of centripetal thrust force roller bearing withstands the end face of power shaft, and the outer ring is fixed with end shield.
The beneficial effects of the utility model: differential shaft is arranged on around the output shaft in pairs symmetrically, planetary gear on the two pairs of differential shafts according to opposite direction install respectively with output shaft on different gears engaged, make compact conformation, dwindle the size of difference structure, the transmission noise is little, stable drive cooperatively interacts to install by bearing and can improve transmission accuracy.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model;
Fig. 2 is a kind of cross-section cutaway view of the utility model;
Among the figure: 1, output shaft, 2, joint element, 3, output gear, 4, differential shaft, 5, planetary gear, 6, synchromesh gear, 7, transition gear, 8, adjust cover, 9, differential bracket, 10, angular contact bearing, 11, the input gear, 12, end shield, 13, centripetal thrust force roller bearing, 14, boss, 15, convex shoulder, 16, angular contact thrust bearing, 17, body, 18, centring ring, 19, fixed cover, 20, flange face, 21, spacer, 22, axial thrust bearing, 23, inner spacing collar, 24, positioning sleeve.
The specific embodiment
Below by specific embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: a kind of gear-hobbing machine difference structure (referring to accompanying drawing 1 accompanying drawing 2), comprise output shaft 1 and four differential shafts 4 that are arranged in the output shaft periphery, differential shaft is parallel with the axis of output shaft, be divided into two groups of symmetric arrangement, positioned opposite be same group, body 17 is provided with axis hole, place output shaft in the axis hole, output shaft is provided with output gear 3, be provided with bearing between the axis hole of output gear and body, be connected by two row angular contact thrust bearings 16 between output gear and the output shaft, the inner surface of output gear is provided with centring ring 18, angular contact thrust bearing is fixed on the two ends of centring ring, the end face of output gear is fixed with fixed cover 19, be provided with the joint element 2 that can move along axis by flat key on the output shaft, zygosporic outer circumference surface and fixed cover match and form key and be connected, zygosporic end face is a flange face 20, differential shaft is arranged on the spoke of output gear, output shaft is provided with convex shoulder 15, convex shoulder withstands a row angular contact thrust bearing of output gear, differential shaft is provided with boss 14, boss and convex shoulder are on same plane, one side of differential shaft convex platform is provided with by angular contact thrust bearing can be around the planetary gear 5 of differential shaft rotation, the length of the planetary gear teeth is less than the length of planetary gear body, and arrange near planetary end, two pairs of planetary gear teeth towards difference during layout, with a pair of planetary gear teeth towards identical, planetary inside is provided with locating ring diagonal angle contact thrust bearing and positions, one side of output shaft convex shoulder is fixed with the synchromesh gear 6 that rotates synchronously with output shaft by flat key, the planetary gear engagement that synchromesh gear is relative with one group, the end of synchromesh gear is provided with positioning sleeve 24, the end of positioning sleeve is fixed with axial thrust bearing 22, one end of axial thrust bearing contacts with the end face of transition gear 7 on being fixed on output shaft, the inner surface of transition gear is provided with step surface, the length of step surface is greater than half of transition gear height, transition gear is fixed on the axle journal of output shaft by two row angular contact thrust bearings, a pair of angular contact thrust bearing is arranged on the end of step surface, another is to being arranged on the root of step surface, the transition gear other end is a hanging structure, be provided with spacer 21 between the two row angular contact thrust bearings, the unsettled end excircle of transition gear is provided with the gear teeth, the other end is the light face, the planetary gear that is meshed with synchromesh gear is synchronous planetary gear, and the planetary gear that is meshed with transition gear is the transition planetary gear; Installation planetary gear 5 is provided with adjustment cover 8 away from the inner ring place of the angular contact thrust bearing of boss, adjust and be fixed with differential bracket 9 outside the cover, differential bracket is nested with on the differential shaft and by being nested with the adjustment cover location on differential shaft, differential bracket is a hierarchic structure, the width of inner ring is less than the width of outer ring, and on cascaded surface, be provided with angular contact bearing 10, the inner ring of angular contact bearing is arranged on the outer circumference surface of transition gear and by inner spacing collar 23 and contacts with the gear teeth end face of transition gear, be fixed with input gear 11 by flat key on the transition gear light face, one end of input gear withstands the inner ring of angular contact bearing 10, the other end withstands the centripetal thrust force roller bearing 13 that is arranged on the transition gear light face, the outer ring of centripetal thrust force roller bearing is equipped with end shield 12, the middle part of end shield is provided with locating hole, the end of output shaft is a conical structure, and taper seat and locating hole match.
Above-described embodiment is a kind of preferred version of the present utility model, is not the utility model is done any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim puts down in writing.
Claims (10)
1, a kind of gear-hobbing machine difference structure comprises the gear between output shaft (1), differential shaft (4) and connection differential shaft and the output shaft, it is characterized in that differential shaft is arranged on the output shaft periphery, forms and surrounds structure, and differential shaft is parallel with the axis of output shaft; Described gear comprises input gear (11), output gear (3), planetary gear (5) and transition gear (7), be connected by a joint element (2) between output gear and the output shaft or disconnect, planetary gear with import gear and be connected by transition gear.
2, gear-hobbing machine difference structure according to claim 1, it is characterized in that totally four of described differential shafts, be divided into two groups of symmetric arrangement, differential shaft is arranged on the spoke of output gear, rotate around output shaft synchronously with output gear, differential shaft is provided with can be around the planetary gear of differential shaft rotation.
3, gear-hobbing machine difference structure according to claim 2, it is characterized in that the length of the length of the described planetary gear teeth less than the planetary gear body, and arrange near planetary end, during layout two pairs of planetary gear teeth towards difference, with a pair of planetary gear teeth towards identical.
4, gear-hobbing machine difference structure according to claim 1, it is characterized in that described output shaft is provided with convex shoulder (15), one side of convex shoulder is provided with output gear by two row angular contact thrust bearings, and opposite side is fixed with the synchromesh gear (6) that rotates synchronously with output shaft; The sheathed transition gear in one side of synchromesh gear is provided with axial thrust bearing (22) and is arranged on positioning sleeve (24) between axial thrust bearing inner ring and the synchromesh gear between synchromesh gear and the transition gear.
5, according to claim 1 or 4 described gear-hobbing machine difference structures, the inner surface that it is characterized in that described transition gear is provided with step surface, the length of step surface is greater than half of transition gear height, transition gear is fixed on the axle journal of output shaft by two row angular contact thrust bearings, a pair of angular contact thrust bearing is arranged on the end of step surface, another is to being arranged on the root of step surface, the transition gear other end is a hanging structure and by axial thrust bearing and synchromesh gear location, is provided with spacer (21) between the two row angular contact thrust bearings; The unsettled end excircle of transition gear is provided with the gear teeth, the other end be the light face and with the input gear fix.
6, according to claim 1 or 3 or 4 described gear-hobbing machine difference structures, it is characterized in that described planetary gear relative mistake moving axis is divided into two groups, one group is synchronous planetary gear, another group is the transition planetary gear, the synchronous planetary gear teeth are relative with synchromesh gear and be meshed with synchromesh gear, and the planetary gear teeth of transition are relative with transition gear and be meshed with transition gear.
7, gear-hobbing machine difference structure according to claim 6, it is characterized in that described planetary end face has been provided with differential bracket (9), differential bracket is nested with on the differential shaft and by being nested with adjustment cover (8) location on differential shaft, differential bracket is a hierarchic structure, the width of inner ring is less than the width of outer ring, and on cascaded surface, being provided with angular contact bearing, the end face of angular contact bearing inner ring withstands the end face of input gear.
8, according to right 1 described gear-hobbing machine difference structure, it is characterized in that described differential shaft is provided with boss (14), boss one side is connected with output gear, opposite side is provided with planetary gear by angular contact thrust bearing, planetary inwall is provided with contact thrust bearing location, locating ring diagonal angle, and boss on the differential shaft and the convex shoulder on the output shaft are same unilateral.
9, gear-hobbing machine difference structure according to claim 1, it is characterized in that described joint element is connected on the output shaft by flat key, zygosporic outer face is flange face (20), be fixed with fixed cover (19) on output shaft and the end face that joint element is connected, fixed cover and joint element complement each other to form the key syndeton.
10, gear-hobbing machine difference structure according to claim 1, it is characterized in that a described output shaft end opposite with joint element is circular cone, and be equipped with the centripetal thrust force roller bearing in the outer cover of transition gear, the inner ring of centripetal thrust force roller bearing withstands the end face of power shaft, and the outer ring is fixed with end shield (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201625912U CN201264129Y (en) | 2008-08-05 | 2008-08-05 | Differential structure of gear hobbing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201625912U CN201264129Y (en) | 2008-08-05 | 2008-08-05 | Differential structure of gear hobbing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201264129Y true CN201264129Y (en) | 2009-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201625912U Expired - Fee Related CN201264129Y (en) | 2008-08-05 | 2008-08-05 | Differential structure of gear hobbing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201264129Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111637A (en) * | 2013-02-04 | 2013-05-22 | 常州工学院 | Quick-changing type hob main shaft of gear hobbing machine |
-
2008
- 2008-08-05 CN CNU2008201625912U patent/CN201264129Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111637A (en) * | 2013-02-04 | 2013-05-22 | 常州工学院 | Quick-changing type hob main shaft of gear hobbing machine |
| CN103111637B (en) * | 2013-02-04 | 2015-06-03 | 常州工学院 | Quick-changing type hob main shaft of gear hobbing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG KALIBO MACHINERY CO., LTD. Free format text: FORMER OWNER: CHEN LIXIN Effective date: 20100427 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 311800 NO.5, XINGYE 2ND ROAD, CHENGXI INDUSTRIAL NEW TOWN, ZHUJI CITY, ZHEJIANG PROVINCE TO: 311800 NO.5, XINGYE 2ND ROAD, CHENGXI DEVELOPMENT ZONE, ZHUJI CITY, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100427 Address after: 311800 No. two, Xingye Road, Chengxi Development Zone, Zhuji City, Zhejiang province 5 Patentee after: Zhejiang Jialibao Machinery Co., Ltd. Address before: 311800, No. two, Xingye Road, Chengxi industrial town, Zhuji, Zhejiang, 5 Patentee before: Chen Lixin |
|
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG KALIBO PRECISION MACHINERY CO., LTD. Free format text: FORMER OWNER: ZHEJIANG KALIBO MACHINERY CO., LTD. Effective date: 20120203 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120203 Address after: 311800 No. two, Xingye Road, Chengxi Development Zone, Zhuji City, Zhejiang province 5 Patentee after: Zhejiang Kalibo Precision Machinery Co., Ltd. Address before: 311800 No. two, Xingye Road, Chengxi Development Zone, Zhuji City, Zhejiang province 5 Patentee before: Zhejiang Jialibao Machinery Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090701 Termination date: 20150805 |
|
| EXPY | Termination of patent right or utility model |