CN207715678U - A kind of harmonic speed reducer suitable for printing machinery - Google Patents
A kind of harmonic speed reducer suitable for printing machinery Download PDFInfo
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- CN207715678U CN207715678U CN201721824556.8U CN201721824556U CN207715678U CN 207715678 U CN207715678 U CN 207715678U CN 201721824556 U CN201721824556 U CN 201721824556U CN 207715678 U CN207715678 U CN 207715678U
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Abstract
The utility model discloses a kind of harmonic speed reducers suitable for printing machinery,Including cam,The flexible bearing being socketed on cam,The flexbile gear being socketed on flexible bearing,It engages the input firm gear being socketed on flexible bearing and engages the output firm gear being socketed on flexible bearing,Cam can drive flexible bearing and flexbile gear to rotate and is mutually driven between flexbile gear and input firm gear and output firm gear with reaching successively when rotating,The flexible bearing has a pair of and is located between input firm gear and flexbile gear to carry out radial support and between output firm gear and flexbile gear to input firm gear to carry out radial support to output firm gear,The center of two flexible bearings is aligned with the center of input firm gear and output firm gear in radial directions respectively,The utility model has the advantages that can make between input firm gear and flexbile gear engaged transmission and output firm gear with it is flexible engaged transmission it is more steady.
Description
Technical field
The utility model is related to a kind of harmonic speed reducers, more particularly to a kind of harmonic speed reducer suitable for printing machinery.
Background technology
Harmonic gear reducer is a kind of deceleration device, is made of three basic building blocks：Fixed internal circular spline, flexbile gear
Wave producer with making flexbile gear that radial deformation occur, has many advantages, such as high-precision, high-bearing capacity.
In general, as shown in Figure 1, retarder include input shaft 104, the cam 3 that is fixedly attached on input shaft 104, socket
A flexible bearing 4 on cam 3, the flexbile gear 5 being socketed on flexible bearing 4, engagement are socketed in the input firm gear on flexbile gear 5
4 crimp of flexible bearing is formed ellipticity by 6 with output firm gear 7, cam 3, and flexible bearing 4, which squeezes flexbile gear 5, makes the formation of flexbile gear 5
Ellipticity, on the long axis direction of flexbile gear 5, the gear teeth of flexbile gear 5 are meshed with input 6 gear teeth of firm gear and output 7 gear teeth of firm gear, soft
On the short-axis direction of wheel 5, the gear teeth and input 6 gear teeth of firm gear and output 7 gear teeth of firm gear of flexbile gear 5 are separated, 104 turns of input shaft
Drive 5 periodically deforming of flexbile gear, the long axis of flexbile gear 5 to be rotated around central rotating shaft by cam 3 and flexible bearing 4 when dynamic, realize with
It inputs firm gear 6 and output firm gear 7 to be driven with 5 phase of flexbile gear, input firm gear 6 and the number of teeth for exporting firm gear in firm gear 7 are greater than or equal to
The number of teeth of flexbile gear 5 and the number of teeth of at least one firm gear are more than the number of teeth of flexbile gear 5, can achieve the effect that reduction of speed transmits；Output
Firm gear 7 is fixedly connected with output shaft 105, flexbile gear 5 drive output firm gear 7 rotate, output firm gear 7 drive output shaft 105 rotation with
By the rotating speed output decelerator after reduction.
Radial active force is will produce during input firm gear 6 and output firm gear 7 and 4 engaged transmission of flexible bearing, it is single
The bearing capacity of a flexible bearing 4 is relatively low, not steady enough in rotation process, input firm gear 6 may be caused and export firm gear 7 and
Transmission between flexbile gear 5 is uneven.
Utility model content
The purpose of this utility model is to provide a kind of harmonic speed reducer suitable for printing machinery, its advantage is that can make defeated
Enter between firm gear and flexbile gear engaged transmission and output firm gear with it is flexible engaged transmission it is more steady.
The above-mentioned technical purpose of the utility model technical scheme is that：One kind being suitable for printing machine
The harmonic speed reducer of tool, including cam, the flexible bearing being socketed on cam, the flexbile gear, the engaging sleeve that are socketed on flexible bearing
The input firm gear that is connected on flexible bearing and engagement are socketed in the output firm gear on flexible bearing, can band successively when cam rotates
Dynamic flexible bearing and flexbile gear rotation are mutually driven with reaching between flexbile gear and input firm gear and output firm gear, the flexible bearing
With a pair and it is located between input firm gear and flexbile gear so that input firm gear is carried out radial support and is located to export firm gear
To carry out radial support to output firm gear between flexbile gear, the centers of two flexible bearings respectively with input firm gear and export firm gear
Center be aligned in radial directions.
Through the above technical solutions, drive flexible bearing and flexbile gear rotation when cam rotates, flexbile gear with input firm gear and defeated
Go out firm gear to be meshed transmission, in transmission process, cam extrusion flexbile gear periodically deforming with realize flexbile gear and input firm gear and
The engaged transmission between firm gear is exported, therefore, between flexbile gear and input firm gear and flexbile gear and output firm gear in radial directions
With certain load, a pair of of flexible bearing has higher bearing capacity, and can be respectively subjected to from input firm gear and defeated
The load for going out firm gear, since the center of two flexible bearings and the center of input firm gear and output firm gear are right in radial directions
Together, so, the supporting force of input firm gear both ends and output firm gear both ends radially relatively balances, in rotation process more
Add stabilization.
The utility model is further arranged to：Further include fixed shell and roll-shell, the cam, flexible bearing and soft
Wheel is respectively positioned on inside fixed shell and roll-shell, and the input firm gear is fixedly connected with fixed shell, output firm gear and rotation
Shell is fixedly connected；Cam is socketed with input terminal positioning bearing close to one end of fixed shell, and input terminal positions the inner ring of bearing
The outer wall of inner wall and cam abuts against, and the inner wall of the outer ring outer wall and fixed shell of input terminal positioning bearing abuts against.
Through the above technical solutions, the outer wall of cam radially squeezes input terminal positioning bearing, fixed inner walls can be with
The outer wall that bearing is positioned to input terminal is supported, and it is radially movable can to limit cam.
The utility model is further arranged to：The fixed inner walls are fixedly connected with input terminal positioning retainer ring, input
Hold the end face of end face and the input terminal positioning bearing of positioning retainer ring to abut against to limit input terminal positioning bearing in an axial direction and
It is moved towards the direction far from the cam.
Through the above technical solutions, when input terminal positions bearing in an axial direction and moved towards the direction far from cam, input terminal
Positioning retainer ring can position bearing to input terminal and be supported, and input terminal positioning bearing can be prevented to be detached from cam in an axial direction.
The utility model is further arranged to：The cam is socketed with output end positioning close to one end of the roll-shell
Bearing, the inner ring inner wall of output end positioning bearing and the outer wall of cam abut against, and output end positions the outer ring outer wall of bearing and turns
The inner wall of dynamic shell abuts against.
Through the above technical solutions, the outer wall of cam radially squeezes output end positioning bearing, roll-shell inner wall can be with
The outer wall that bearing is positioned to output end is supported, and it is radially movable can to limit cam.
The utility model is further arranged to：The roll-shell inner wall is fixedly connected with output end positioning retainer ring, output
Hold the end face of end face and the output end positioning bearing of positioning retainer ring to abut against to limit output end positioning bearing in an axial direction and
It is moved towards the direction far from the cam.
Through the above technical solutions, when output end positions bearing in an axial direction and moved towards the direction far from cam, output end
Positioning retainer ring can position bearing to output end and be supported, and output end positioning bearing can be prevented to be detached from cam in an axial direction.
The utility model is further arranged to：Further include fixed shell and roll-shell, the cam, flexible bearing and soft
Wheel is respectively positioned on inside fixed shell and roll-shell, and the input firm gear is fixedly connected with fixed shell, output firm gear and rotation
Shell is fixedly connected；Cam is socketed with input terminal positioning bearing close to one end of fixed shell, cam close to roll-shell one
End cap is connected to output end positioning bearing, and fixed inner walls are fixedly connected with input terminal positioning retainer ring, and roll-shell inner wall is fixed
It is connected with output end positioning retainer ring, input terminal positioning bearing both ends of the surface are abutted against with cam and input terminal positioning retainer ring respectively, defeated
Outlet positioning bearing both ends of the surface are abutted against with cam and output end positioning retainer ring respectively.
Through the above technical solutions, cam axially movable when, bearing and output end can be positioned with input terminal respectively and positioned
Bearing face abuts against, and cam is clamped between input terminal positioning bearing and output end positioning bearing, can limit cam edge
It is axially moved, cam can be rotated more stably, more steady in transmission process.
In conclusion the utility model has the advantages that：
1, a pair of of flexible bearing can be respectively subjected to from input firm gear and export the radial load of firm gear, and bearing capacity is more
It is high；
2, the center of flexible bearing exists with the center of input firm gear and the center of flexible bearing and the center of output firm gear
It aligns in the radial direction, the supporting force that input firm gear both ends and the both ends of output firm gear are subject to can be made more to balance, work
It is more steady when making；
3, input terminal positioning bearing and output end positioning bearing can limit cam radially and/or axially movable, cam
It can more stably rotate.
Description of the drawings
Fig. 1 is the structural schematic diagram of the prior art；
Fig. 2 is the schematic diagram of the utility model structure；
Fig. 3 is the schematic diagram for embodying flexbile gear and inputting assembling structure between firm gear and flexbile gear and output firm gear.
In figure, 1, fixed shell；2, roll-shell；3, cam；31, ladder cylinder；4, flexible bearing；5, flexbile gear；6, defeated
Enter firm gear；7, firm gear is exported；8, input terminal positions bearing；9, output end positions bearing；101, input terminal positioning retainer ring；102, defeated
Outlet positioning retainer ring；103, bearing support；104, input shaft；105, output shaft.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment：A kind of harmonic speed reducer suitable for printing machinery, in conjunction with Fig. 2 and Fig. 3, including fixed shell 1, rotation
Shell 2 and the cam 3 inside fixed shell 1 and roll-shell 2 can be fixedly connected with one on cam 3 and be used for input speed
Input shaft（It is not drawn into figure）, input shaft can rotate with moving cam 3；Flexible bearing 4, flexible shaft are fixedly attached on cam 3
It holds and is socketed with flexbile gear 5 on 4（Detailed construction is shown in Fig. 3）, cam 3, which squeezes flexible bearing 4, makes flexible bearing 4 deform upon to form ellipse
Shape, flexible bearing 4, which squeezes flexbile gear 5, makes flexbile gear 5 deform upon to form ellipticity, and cam 3 can drive 4 turns of flexible bearing when rotating
It is dynamic；Flexbile gear 5 is cased with input firm gear 6 close to one end of fixed shell 1, and flexbile gear 5 is cased with output firm gear close to one end of roll-shell 2
7, the gear teeth for inputting firm gear 6 and output firm gear 7 are meshed with the gear teeth of flexbile gear 5, and input firm gear 6 passes through bolt and fixed shell
1 is fixedly connected；On the long axis direction of ellipticity flexbile gear 5, inputs the gear teeth of firm gear 6 and export the gear teeth and flexbile gear 5 of firm gear 7
The gear teeth be meshed, on the short-axis direction of flexbile gear 5, input the gear teeth of firm gear 6 and export the gear teeth and the flexbile gear 5 of firm gear 7
The gear teeth are separated, and drive flexible bearing 4 periodically to squeeze flexbile gear 5 when cam 3 rotates, make the long axis of ellipticity flexbile gear 5 around center
Axis periodic rotary；More two of the number of teeth of the gear ratio flexbile gear 5 of firm gear 6 is inputted, the tooth of the number of teeth and flexbile gear 5 of firm gear 7 is exported
Number is identical, and flexible bearing 4 can drive flexbile gear 5 in the 7 inside reduction of speed rotation of input firm gear 6 and output firm gear when rotating.Export firm gear 7
It is fixedly connected with roll-shell 2 by bolt, the flexbile gear 5 after reduction of speed rotates and output firm gear 7 is driven to rotate, and exports firm gear
7 drive roll-shells 2 rotation with by the rotating speed of input reducer reduce after output decelerator.
As shown in Fig. 2, flexible bearing 4 have a pair, be located at input firm gear 6 and flexbile gear 5 between and output just and
Between flexbile gear 5, input firm gear 6 can be respectively subjected to and export the radial load of firm gear 7, improve bearing capacity.Two flexible shafts
Hold 4 center respectively with input firm gear 6 and export the center of firm gear 7 and be aligned, the both ends of input firm gear 6 and output firm gear 7 by
Supporting force more balance, when rotation, is more stable, and flexbile gear 5 and input firm gear 6 and the engaged transmission exported between firm gear 7 are more steady
It is fixed.
In conjunction with Fig. 2 and Fig. 3, the both ends of cam 3 are equipped with ladder cylinder 31, and input terminal is respectively sleeved on ladder cylinder 31
It positions bearing 8 and output end and positions bearing 9, input terminal positions the inner ring inner wall of bearing 8 and output end positioning bearing 9 and ladder
31 outer wall of cylinder abuts, and the inner wall of the outer ring outer wall and fixed shell 1 of input terminal positioning bearing 8 abuts against, output end locating shaft
The inner wall for holding 9 outer ring outer wall and roll-shell 2 abuts against, and input terminal positions bearing 8 and output end positioning bearing 9 can be to cam
3 both ends are supported, and cam 3 can smoothly rotate inside fixed shell 1.It is fixedly connected with one on 1 inner wall of fixed shell
Enclose input terminal positioning retainer ring 101, input terminal position the both ends of the surface of bearing 8 respectively with input terminal positioning retainer ring 101 and ladder cylinder
31 shoulder plane abuts against；Output end positioning retainer ring 102 is fixedly connected on 2 inner wall of roll-shell, output end positions bearing 9
Shoulder plane of the both ends of the surface respectively with output end positioning retainer ring 102 and ladder cylinder 31 abut against, input terminal positioning retainer ring 101
Cam 3 can be limited with output end positioning retainer ring 102 axially movable.
As shown in Figure 1, being equipped with bearing support 103, the outer ring of two bearing supports 103 in fixed shell 1 and roll-shell 2
The inner wall with fixed shell 1 and roll-shell 2 abuts against respectively, and insertion bearing can be abutted on the inside of the inner ring of bearing support 103
Sleeve（It is not drawn into figure）To improve the stability supported to fixed shell 1 and roll-shell 2, and input axis cam can be improved
3 and roll-shell 2 concentricity, cam 3 rotate when it is more steady.
The course of work：Input shaft band moving cam 3 rotates, and cam 3 drives flexible bearing 4 to rotate, and flexible bearing 4 drives flexbile gear
5 periodically deformings, since input firm gear 6 is fixed, so flexbile gear 5 rotates, the gear ratio flexbile gear 5 for inputting firm gear 6 is big, so
The rotating speed of flexbile gear 5 reduces；Flexbile gear 5 by deceleration drives output firm gear 7 to rotate, and output firm gear 7 drives roll-shell 2 to rotate,
Roll-shell 2 drives external hinge connected to it rotation with by rotating speed output decelerator.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but
As long as all being protected by Patent Law in the right of the utility model.
Claims (6)
1. a kind of harmonic speed reducer suitable for printing machinery, including cam（3）, be socketed in cam（3）On flexible bearing
（4）, be socketed in flexible bearing（4）On flexbile gear（5）, engagement be socketed in flexible bearing（4）On input firm gear（6）And engagement
It is socketed in flexible bearing（4）On output firm gear（7）, cam（3）Flexible bearing can be driven when rotation successively（4）And flexbile gear（5）
Rotation is to reach flexbile gear（5）With input firm gear（6）And output firm gear（7）Between be mutually driven, it is characterized in that：The flexible shaft
It holds（4）With a pair and it is located at input firm gear（6）And flexbile gear（5）Between with to input firm gear（6）Carry out radial support with
And positioned at output firm gear（7）And flexbile gear（5）Between with to export firm gear（7）Carry out radial support, two flexible bearings（4）In
The heart respectively with input firm gear（6）With output firm gear（7）Center be aligned in radial directions.
2. a kind of harmonic speed reducer suitable for printing machinery according to claim 1, it is characterized in that：It further include set casing
Body（1）And roll-shell（2）, the cam（3）, flexible bearing（4）And flexbile gear（5）It is respectively positioned on fixed shell（1）With rotation shell
Body（2）Inside, the input firm gear（6）With fixed shell（1）It is fixedly connected, exports firm gear（7）With roll-shell（2）It is fixed to connect
It connects；Cam（3）Close to fixed shell（1）One end be socketed with input terminal positioning bearing（8）, input terminal positioning bearing（8）It is interior
Enclose inner wall and cam（3）Outer wall abut against, input terminal position bearing（8）Outer ring outer wall and fixed shell（1）Inner wall phase
It abuts.
3. a kind of harmonic speed reducer suitable for printing machinery according to claim 2, it is characterized in that：The fixed shell
（1）Inner wall is fixedly connected with input terminal positioning retainer ring（101）, input terminal positioning retainer ring（101）End face and the input terminal it is fixed
Position bearing（8）End face abut against with limit input terminal position bearing（8）In an axial direction and towards far from the cam（3）Direction fortune
It is dynamic.
4. a kind of harmonic speed reducer suitable for printing machinery according to claim 2, it is characterized in that：The cam（3）
Close to the roll-shell（2）One end be socketed with output end positioning bearing（9）, output end positioning bearing（9）Inner ring inner wall
With cam（3）Outer wall abut against, output end position bearing（9）Outer ring outer wall and roll-shell（2）Inner wall abut against.
5. a kind of harmonic speed reducer suitable for printing machinery according to claim 4, it is characterized in that：The roll-shell
（2）Inner wall is fixedly connected with output end positioning retainer ring（102）, output end positioning retainer ring（102）End face and the output end it is fixed
Position bearing（9）End face abut against with limit output end position bearing（9）In an axial direction and towards far from the cam（3）Direction fortune
It is dynamic.
6. a kind of harmonic speed reducer suitable for printing machinery according to claim 1, it is characterized in that：It further include set casing
Body（1）And roll-shell（2）, the cam（3）, flexible bearing（4）And flexbile gear（5）It is respectively positioned on fixed shell（1）With rotation shell
Body（2）Inside, the input firm gear（6）With fixed shell（1）It is fixedly connected, exports firm gear（7）With roll-shell（2）It is fixed to connect
It connects；Cam（3）Close to fixed shell（1）One end be socketed with input terminal positioning bearing（8）, cam（3）Close to roll-shell（2）
One end be socketed with output end positioning bearing（9）, fixed shell（1）Inner wall is fixedly connected with input terminal positioning retainer ring（101）, turn
Dynamic shell（2）Inner wall is fixedly connected with output end positioning retainer ring（102）, input terminal positioning bearing（8）Both ends of the surface respectively with cam
（3）With input terminal positioning retainer ring（101）It abuts against, output end positions bearing（9）Both ends of the surface respectively with cam（3）It is fixed with output end
Position baffle ring（102）It abuts against.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721824556.8U CN207715678U (en) | 2017-12-22 | 2017-12-22 | A kind of harmonic speed reducer suitable for printing machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721824556.8U CN207715678U (en) | 2017-12-22 | 2017-12-22 | A kind of harmonic speed reducer suitable for printing machinery |
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| Publication Number | Publication Date |
|---|---|
| CN207715678U true CN207715678U (en) | 2018-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721824556.8U Active CN207715678U (en) | 2017-12-22 | 2017-12-22 | A kind of harmonic speed reducer suitable for printing machinery |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895126A (en) * | 2018-10-11 | 2018-11-27 | 北京中研华飞科技有限公司 | cup type harmonic speed reducer |
| CN110878823A (en) * | 2019-08-26 | 2020-03-13 | 扬州星辰制造技术有限公司 | Harmonic differential mechanism of hard tooth surface rigid wheel |
| WO2020056963A1 (en) * | 2018-09-19 | 2020-03-26 | 珠海格力电器股份有限公司 | Speed reducer and robot |
-
2017
- 2017-12-22 CN CN201721824556.8U patent/CN207715678U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020056963A1 (en) * | 2018-09-19 | 2020-03-26 | 珠海格力电器股份有限公司 | Speed reducer and robot |
| US11648662B2 (en) | 2018-09-19 | 2023-05-16 | Gree Electric Appliances, Inc. Of Zhuhai | Speed reducer and robot |
| CN108895126A (en) * | 2018-10-11 | 2018-11-27 | 北京中研华飞科技有限公司 | cup type harmonic speed reducer |
| CN110878823A (en) * | 2019-08-26 | 2020-03-13 | 扬州星辰制造技术有限公司 | Harmonic differential mechanism of hard tooth surface rigid wheel |
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