CN108458054A - The cycloidal reducer that back clearance compensates automatically - Google Patents
The cycloidal reducer that back clearance compensates automatically Download PDFInfo
- Publication number
- CN108458054A CN108458054A CN201810634671.1A CN201810634671A CN108458054A CN 108458054 A CN108458054 A CN 108458054A CN 201810634671 A CN201810634671 A CN 201810634671A CN 108458054 A CN108458054 A CN 108458054A
- Authority
- CN
- China
- Prior art keywords
- cycloidal
- ring gear
- wheel
- flank profil
- tooth
- 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.)
- Pending
Links
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 16
- 210000000515 tooth Anatomy 0.000 claims abstract description 60
- 230000000694 effects Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/2854—Toothed gearings for conveying rotary motion with gears having orbital motion involving conical gears
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/2863—Arrangements for adjusting or for taking-up backlash
Abstract
A kind of cycloidal reducer that back clearance compensates automatically, is related to technical field of transmission machinery, and the solution is to eliminate back lash.The retarder includes input shaft, ring gear and two Cycloidal Wheels, multiple pins；Two Cycloidal Wheels are separately mounted to by two capacity eccentric bearings on input shaft, and each pin is each passed through the post holes of two Cycloidal Wheels：Two groups of internal tooths are formed on the ring gear, the flank profil of left set internal tooth therein slopes inwardly from left to right, and the flank profil of right group of internal tooth slopes inwardly from right to left；The external tooth flank profil of the left swing line wheel slopes inwardly from left to right, and tooth engagement in the external tooth of left swing line wheel and the left set of ring gear；The external tooth flank profil of the right Cycloidal Wheel slopes inwardly from right to left, and tooth engagement in right group of the external tooth of right Cycloidal Wheel and ring gear；The left and right ends of the pin are respectively nested with that there are one the flexible shims that two Cycloidal Wheels are applied with pretightning force.Retarder provided by the invention can eliminate back lash automatically.
Description
Technical field
The present invention relates to gearing technologies, more particularly to a kind of technology for the cycloidal reducer that back clearance compensates automatically.
Background technology
Existing cycloidal reducer divides the different forms such as single-stage speed reducing and multi-stage speed-reducing.Single-stage cycloidal reducer is taken mostly
Two Cycloidal Wheels, a gear pin between pin wheel housing and Cycloidal Wheel and pin wheel housing engage to realize that deceleration and kinetic energy transmit.
It can cause occur back lash between Cycloidal Wheel and ring gear due to profile wear after this single reduction gear long-time use,
It is difficult to eliminate return difference.
Invention content
Defect present in for the above-mentioned prior art, technical problem to be solved by the invention is to provide a kind of energy is automatic
Eliminate the cycloidal reducer that the back clearance of back lash compensates automatically.
In order to solve the above-mentioned technical problem, the cycloidal reducer that a kind of back clearance provided by the present invention compensates automatically, including
Input shaft, each Cycloidal Wheel of ring gear and left and right and multiple pins；Capacity eccentric bearing there are two being nested on the input shaft, and
And two capacity eccentric bearing mutual dislocation 180 degrees, two Cycloidal Wheels are separately mounted to by two capacity eccentric bearings on input shaft, described
The multiple post holes symmetrically laid are offered in Cycloidal Wheel, each pin is each passed through each post holes of two Cycloidal Wheels；Its feature
It is：
Be formed with each one group of internal tooth around on the ring gear, the flank profil of left set internal tooth therein along ring gear it is radial from a left side to
Dextrad is tilted, and the flank profil of right group of internal tooth slopes inwardly from right to left along the radial direction of ring gear；
The external tooth flank profil of the left swing line wheel slopes inwardly from left to right along the radial direction of left swing line wheel, and the external tooth of left swing line wheel
With tooth engagement in the left set of ring gear；
The external tooth flank profil of the right Cycloidal Wheel slopes inwardly from right to left along the radial direction of right Cycloidal Wheel, and the external tooth of right Cycloidal Wheel
With right group of ring gear in tooth engagement；
The left and right ends of the pin are respectively nested with there are one flexible shim, and left shim is tight against firmly left swing line wheel
Left side, for right shim tight against the right side of firmly right Cycloidal Wheel, one end of pin is formed with bolumn cap, and the other end is equipped with and it
The locking nut of screw-thread fit, and the bolumn cap of pin and locking nut tightly suppress two shims respectively.
Further, the angle between the external tooth flank profil and the central axis of Cycloidal Wheel of the Cycloidal Wheel is 3 degree to 9 degree,
Angle between the flank profil and the central axis of ring gear of two groups of internal tooths of ring gear is also 3 degree to 9 degree.
Further, further include end cap, locating cover, end cap and locating cover are separately mounted to by bearing on input shaft, interior
Gear ring and two Cycloidal Wheels are all laid between end cap and locating cover, and two Cycloidal Wheels are matched with end cap, locating cover activity
It closes, ring gear coordinates with end cap, locating cover sliding friction.
The flank profil of the cycloidal reducer that back clearance provided by the invention compensates automatically, Cycloidal Wheel and ring gear has certain cone
Degree, within the scope of identical engaging width, increases Cycloidal Wheel and the length of action of ring gear, can improve the stable drive of retarder
Property, and flexible shim can be utilized to apply pretightning force to Cycloidal Wheel, Cycloidal Wheel can be eliminated automatically by pretightning force
Back lash between flank profil and ring gear flank profil.And the flank profil of ring gear is V-type, and both sides are engaged with Cycloidal Wheel, uniform force,
Robust motion can be improved, extend the service life of ring gear.
Description of the drawings
Fig. 1 is the structural schematic diagram for the cycloidal reducer that the back clearance of the embodiment of the present invention compensates automatically；
Fig. 2 is the structural schematic diagram of the ring gear in the cycloidal reducer that the back clearance of the embodiment of the present invention compensates automatically；
Fig. 3 is the structural schematic diagram of two Cycloidal Wheels in the cycloidal reducer that the back clearance of the embodiment of the present invention compensates automatically.
Specific implementation mode
The embodiment of the present invention is described in further detail below in conjunction with description of the drawings, but the present embodiment is not used to limit
The system present invention, every similar structure using the present invention and its similar variation, should all be included in protection scope of the present invention, the present invention
In pause mark indicate the relationship of sum.
As shown in Figure 1-Figure 3, the cycloidal reducer that a kind of back clearance that the embodiment of the present invention is provided compensates automatically, including it is defeated
Enter axis 1, each Cycloidal Wheel 21,22 of ring gear 3 and left and right and multiple pins 4；It is eccentric there are two being nested on the input shaft 1
Bearing 8, and two 8 mutual dislocation 180 degrees of capacity eccentric bearing, two Cycloidal Wheels 21,22 are installed respectively by two capacity eccentric bearings 8
On input shaft 1, the multiple post holes 200 symmetrically laid are offered in the Cycloidal Wheel 21,22, each pin 4 is each passed through two
Each post holes 200 of a Cycloidal Wheel；It is characterized in that：
Be formed with each one group of internal tooth around on the ring gear 3, the flank profil of left set internal tooth 31 therein along ring gear it is radial from
Left-to-right slopes inwardly, and the flank profil of right group of internal tooth 32 slopes inwardly from right to left along the radial direction of ring gear；
The external tooth flank profil 201 of the left swing line wheel 21 slopes inwardly from left to right along the radial direction of left swing line wheel, and left swing line wheel
21 external tooth is engaged with the left set internal tooth 31 of ring gear；
The external tooth flank profil 201 of the right Cycloidal Wheel 22 slopes inwardly from right to left along the radial direction of right Cycloidal Wheel, and right Cycloidal Wheel
22 external tooth is engaged with right group of internal tooth 32 of ring gear；
The left and right ends of the pin 4 are respectively nested with there are one flexible shim 5, and left shim is tight against firmly left swing line
The left side of wheel, right shim is tight against the right side of firmly right Cycloidal Wheel, one end of pin 4（Left end）It is formed with bolumn cap 41, separately
One end（Right end）Equipped with the locking nut 42 with its screw-thread fit, and the bolumn cap of pin and locking nut tightly suppress two respectively
Shim 5.
The embodiment of the invention also includes end cap 6, locating cover 7, end cap and locating covers to be separately mounted to input shaft 1 by bearing
On, ring gear and two Cycloidal Wheels are all laid between end cap and locating cover, and two Cycloidal Wheels are lived with end cap, locating cover
Dynamic cooperation, ring gear coordinate with end cap, locating cover sliding friction.
In the embodiment of the present invention, the angle between the external tooth flank profil and the central axis of Cycloidal Wheel of the Cycloidal Wheel is 3 degree
To 9 degree, the angle between the flank profil and the central axis of ring gear of two groups of internal tooths of ring gear is also 3 degree to 9 degree.
The operation principle of the embodiment of the present invention is as follows：
By screwing the locking nut on pin, two shims on compressible pin are allowed to elastic deformation, to be a left side
Cycloidal Wheel provides a thrust to the right, and a thrust to the left is provided for right Cycloidal Wheel so that the external tooth of left swing line wheel with it is interior
The left set internal tooth of gear ring is adjacent to, and the external tooth of right Cycloidal Wheel and right group of internal tooth of ring gear are adjacent to.
When the rigidity of two Cycloidal Wheels is relatively low, under the elastic force effect of shim, two Cycloidal Wheels can occur slightly
Elastic deformation, this will increase the contact area of the internal tooth flank profil of the external tooth flank profil and ring gear of Cycloidal Wheel, slow down to can be improved
The transmission stability of device.
A period of time after operation of the embodiment of the present invention, contacting profile will inevitably be worn, in shim
Elastic force effect under, left swing line wheel can move right compensation left swing line wheel and ring gear contacting profile abrasion, right Cycloidal Wheel
It can be moved to the left the abrasion for the contacting profile for compensating right Cycloidal Wheel and ring gear, to eliminate caused by contacting profile is worn
Back lash.
Simultaneously as the abrasion that the engagement place of the internal tooth flank profil of the external tooth flank profil and ring gear of Cycloidal Wheel occurs is mended automatically
Repay so that the external tooth flank profil of Cycloidal Wheel with and the internal tooth flank profil of ring gear can be always maintained at meshing state, therefore retarder by
It rotates forward when switching to rotate backward or switching to rotate forward by rotating backward, return difference zero, this is conducive to improve retarder
Transmission accuracy.
The flank profil of two groups of internal tooths of angle and ring gear between the external tooth flank profil and the central axis of Cycloidal Wheel of Cycloidal Wheel
Angle between the central axis of ring gear all designs the angular range at 3 degree to 9 degree, this is because the angle of these angles
Degree can cause the centring property of the external tooth flank profil of Cycloidal Wheel, the internal tooth flank profil of ring gear that will be difficult to protect less than this angular range
Card, the gap between the external tooth flank profil of Cycloidal Wheel, the internal tooth flank profil of ring gear is also difficult to eliminate；The angle of these angles is higher than this
A angular range, according to mechanical analysis it is found that the elastic force of the shim needed is also larger, this will increase the external tooth tooth of Cycloidal Wheel
The frictional force of wide, ring gear internal tooth flank profil, influences transmission efficiency.
Claims (3)
1. a kind of cycloidal reducer that back clearance compensates automatically, including input shaft, each Cycloidal Wheel of ring gear and left and right, and it is more
A pin；Capacity eccentric bearing there are two being nested on the input shaft, and two capacity eccentric bearing mutual dislocation 180 degrees, two cycloids
Wheel is separately mounted to by two capacity eccentric bearings on input shaft, the multiple post holes symmetrically laid is offered in the Cycloidal Wheel, respectively
A pin is each passed through each post holes of two Cycloidal Wheels；It is characterized in that：
Be formed with each one group of internal tooth around on the ring gear, the flank profil of left set internal tooth therein along ring gear it is radial from a left side to
Dextrad is tilted, and the flank profil of right group of internal tooth slopes inwardly from right to left along the radial direction of ring gear；
The external tooth flank profil of the left swing line wheel slopes inwardly from left to right along the radial direction of left swing line wheel, and the external tooth of left swing line wheel
With tooth engagement in the left set of ring gear；
The external tooth flank profil of the right Cycloidal Wheel slopes inwardly from right to left along the radial direction of right Cycloidal Wheel, and the external tooth of right Cycloidal Wheel
With right group of ring gear in tooth engagement；
The left and right ends of the pin are respectively nested with there are one flexible shim, and left shim is tight against firmly left swing line wheel
Left side, for right shim tight against the right side of firmly right Cycloidal Wheel, one end of pin is formed with bolumn cap, and the other end is equipped with and it
The locking nut of screw-thread fit, and the bolumn cap of pin and locking nut tightly suppress two shims respectively.
2. the cycloidal reducer that back clearance according to claim 1 compensates automatically, it is characterised in that：The external tooth of the Cycloidal Wheel
Angle between flank profil and the central axis of Cycloidal Wheel is 3 degree to 9 degree, in the flank profil and ring gear of two groups of internal tooths of ring gear
Angle between mandrel line is also 3 degree to 9 degree.
3. the cycloidal reducer that back clearance according to claim 1 compensates automatically, it is characterised in that：Further include end cap, positioning
Lid, end cap and locating cover are separately mounted to by bearing on input shaft, and ring gear and two Cycloidal Wheels are all laid in end cap and determine
Between the lid of position, and two Cycloidal Wheels coordinate with end cap, locating cover activity, and ring gear is matched with end cap, locating cover sliding friction
It closes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810634671.1A CN108458054A (en) | 2018-06-20 | 2018-06-20 | The cycloidal reducer that back clearance compensates automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810634671.1A CN108458054A (en) | 2018-06-20 | 2018-06-20 | The cycloidal reducer that back clearance compensates automatically |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108458054A true CN108458054A (en) | 2018-08-28 |
Family
ID=63214934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810634671.1A Pending CN108458054A (en) | 2018-06-20 | 2018-06-20 | The cycloidal reducer that back clearance compensates automatically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108458054A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081879A (en) * | 2020-09-16 | 2020-12-15 | 李国斌 | One-tooth-difference cycloidal pin gear speed reducer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0202173A1 (en) * | 1985-04-19 | 1986-11-20 | Maag France Sa | Device for reducing the radial backlash between meshing trethof gears and application of the same in a reduction gearing "without backlash" |
| US5145468A (en) * | 1991-01-07 | 1992-09-08 | Compudrive Corporation | Adjustable cycloidal speed reducer |
| CN102705452A (en) * | 2012-05-25 | 2012-10-03 | 重庆大学 | Two-stage conical internal cycloid transmission device |
| CN102979857A (en) * | 2012-11-17 | 2013-03-20 | 吴小杰 | Bearing-grease lubricating wind-power double-cycloidal variable-pitch speed reducer |
| CN105508542A (en) * | 2016-03-09 | 2016-04-20 | 江苏泰隆减速机股份有限公司 | Return-difference-free two-stage cycloidal cone gear speed reducer |
| CN205350242U (en) * | 2016-03-09 | 2016-06-29 | 江苏泰隆减速机股份有限公司 | No return difference single -stage cycloid awl tooth reduction gear |
| CN208417416U (en) * | 2018-06-20 | 2019-01-22 | 上海乐白机器人有限公司 | The cycloidal reducer that back clearance compensates automatically |
-
2018
- 2018-06-20 CN CN201810634671.1A patent/CN108458054A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0202173A1 (en) * | 1985-04-19 | 1986-11-20 | Maag France Sa | Device for reducing the radial backlash between meshing trethof gears and application of the same in a reduction gearing "without backlash" |
| US5145468A (en) * | 1991-01-07 | 1992-09-08 | Compudrive Corporation | Adjustable cycloidal speed reducer |
| CN102705452A (en) * | 2012-05-25 | 2012-10-03 | 重庆大学 | Two-stage conical internal cycloid transmission device |
| CN102979857A (en) * | 2012-11-17 | 2013-03-20 | 吴小杰 | Bearing-grease lubricating wind-power double-cycloidal variable-pitch speed reducer |
| CN105508542A (en) * | 2016-03-09 | 2016-04-20 | 江苏泰隆减速机股份有限公司 | Return-difference-free two-stage cycloidal cone gear speed reducer |
| CN205350242U (en) * | 2016-03-09 | 2016-06-29 | 江苏泰隆减速机股份有限公司 | No return difference single -stage cycloid awl tooth reduction gear |
| CN208417416U (en) * | 2018-06-20 | 2019-01-22 | 上海乐白机器人有限公司 | The cycloidal reducer that back clearance compensates automatically |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081879A (en) * | 2020-09-16 | 2020-12-15 | 李国斌 | One-tooth-difference cycloidal pin gear speed reducer |
| CN112081879B (en) * | 2020-09-16 | 2021-11-02 | 李国斌 | One-tooth-difference cycloidal pin gear speed reducer |
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