CN209587059U - Speed reducer for heavy duty - Google Patents
Speed reducer for heavy duty Download PDFInfo
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- CN209587059U CN209587059U CN201920144629.1U CN201920144629U CN209587059U CN 209587059 U CN209587059 U CN 209587059U CN 201920144629 U CN201920144629 U CN 201920144629U CN 209587059 U CN209587059 U CN 209587059U
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- input shaft
- bearing
- speed reducer
- heavy duty
- shaft
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Abstract
A kind of speed reducer for heavy duty, including shell, output seat and input shaft, set on input shaft there are three the eccentric wheel shifted to install, eccentric wheel is connect with three Cycloidal Wheels respectively by bearing of the crank pin, multiple gear pins are circumferentially equipped in the inner wall of shell, gear pin is engaged with three Cycloidal Wheel intervals；One end of the input shaft is equipped with and the cylinder location hole for connecting motor output shaft, motor output shaft is cylinder, it can be suitable for the occasion of heavier loads, by using the structure of motor output shaft and the socket of input shaft positioning cylinder, it can be improved the speed of installation and removal, the connection type of the two also can be improved coaxial precision.
Description
Technical field
The utility model relates to a kind of speed reducers, more particularly, to a kind of speed reducer for heavy duty.
Background technique
The transmission device that needle tooth cycloidal reducer has been widely used as industrial robot at present is applied.Cycloidal-pin wheel slows down
Device due to the planetary transmission structure using few teeth difference, therefore its with small in size, light-weight, gear range big, smooth running and
The advantages that bearing capacity is strong, but structure is complicated for general needle tooth cycloidal reducer.
Currently, needle tooth cycloid reduction is largely mainly used in the precision transmission system gently loaded, actually it is not appropriate for
In accurate deceleration transmission as heavy-duty industrial robot, Chinese patent CN202203344U " precision cycloid decelerator " is using inclined
The heart covers upper Cycloidal Wheel and is divided into reverse Cycloidal Wheel and forward two groups of Cycloidal Wheel, and structure is complicated, when speed reducer is assembled
The precision of assembly also it is difficult to ensure that, input in the prior art, the assembling structure of the output shaft of motor and input shaft is complicated, dimension
It is difficult to repair disassembly, therefore, need to make improvements.
Utility model content
The main purpose of the utility model is to provide a kind of speed reducers for heavy duty, solve the speed reducer for heavy duty
Structure is complicated, the problem of assembly precision being difficult to ensure with the assembling structure of input shaft complexity.
In order to solve the above technical problems, the technical scheme adopted by the utility model is: it is a kind of for heavy duty speed reducer,
Including shell, output seat and input shaft, set on input shaft there are three the eccentric wheel shifted to install, eccentric wheel passes through bearing of the crank pin point
It is not connect with three Cycloidal Wheels, is circumferentially equipped with multiple gear pins in the inner wall of shell, gear pin is nibbled with three Cycloidal Wheel intervals
It closes；One end of the input shaft be equipped with the cylinder location hole for connecting motor output shaft, motor output shaft be cylinder.
In preferred embodiment, be additionally provided with the connecting flange for connecting motor, input shaft pass through the centre bore of connecting flange with
Motor output shaft socket；
It is equipped between connecting flange and motor fixing plate for adjusting axial position between motor and connecting flange
Adjusting gasket.
In preferred embodiment, the speed reducer is equipped with pivot flange, and pivot flange is located at the side of Cycloidal Wheel, and output seat is located at
The other side of Cycloidal Wheel is fixedly connected between pivot flange and output seat by multiple pivot pins and bolt.
In preferred embodiment, the output seat is supported inside the shell by the first main shaft bearing, and pivot flange passes through second
Main shaft bearing supports inside the shell, and the input shaft outer end is equipped with the keyway for positioning anti-rotation.
In preferred embodiment, multiple pivot pins and bolt circumferentially interlaced arrangement, first main shaft bearing or second main
Axle bearing is angular contact bearing.
In preferred embodiment, the pivot pin passes through the driving hole of Cycloidal Wheel, is equipped with axle sleeve in the outer wall of pivot pin.
In preferred embodiment, the bolt passes through the driving hole of Cycloidal Wheel, is equipped with spacer sleeve in the outer wall of bolt.
In preferred embodiment, one end of input shaft is supported in output seat by the second bearing of input shaft, input shaft it is another
End is supported in pivot flange by the first bearing of input shaft；
The internal diameter of first bearing of input shaft is identical as the internal diameter of the second bearing of input shaft.
In preferred embodiment, interior extension edge, interior extension edge and the first bearing of input shaft are equipped in the outer end of pivot flange
Outer ring side wall contact；It is additionally provided with external expansion edge in the outer end of pivot flange, external expansion edge is interior with the second main shaft bearing
Enclose side wall contact.
In preferred embodiment, it is equipped with the shaft shoulder for the second bearing of input shaft of axially position in the outer wall of input shaft, second
Adjusting pad is equipped between bearing of input shaft and the shaft shoulder.
The utility model provides a kind of speed reducer for heavy duty, and there are three Cycloidal Wheels for dress on its input shaft, also increases
The efficiency being driven greatly also can adapt to the transmission occasion of some heavier loads.
By using the structure of motor output shaft and the socket of input shaft cylinder, the speed of installation and removal can be improved,
The connection type of the two also can be improved coaxial precision.
It is also connected as the structure of an entirety using pivot flange, pivot pin and output seat, enhances transmission rigidity, ties simultaneously
Structure is more compact, reduces the space occupied, compared with traditional RV speed reducer, optimizes the transmission of planetary gear, reduces zero
Part.Keep retarder volume smaller, installation is more flexible by the operating of manipulator, and the output that can replace harmonic wave speed reducing machine completely is turned round
The insufficient field of square uses.In preferred scheme, by the Cycloid tooth profile correction of the flank shape scheme of optimization, using negative equidistant plus negative shifting
Scheme and modification of rotated angle away from correction of the flank shape use the scheme of independent calculation formula, and the accuracy of mesh of Cycloidal Wheel and gear pin is higher, and
Return difference is realized less than 1 arc point, can replace harmonic wave speed reducing machine completely uses field.This type is applicable in six-shaft industrial robot
Three axis joint afterwards is also suitable small intelligent service humanoid robot.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and examples:
Fig. 1 is the structure chart of the utility model；
Fig. 2 is the close Cycloidal Wheel of the utility model and gear pin engaging structure figure；
In figure: input shaft 1；Pin shaft 2；Shell 3；Gear pin 4；Cycloidal Wheel 5；Axle sleeve 6；First main shaft bearing 7；Oil sealing
8；Export seat 9；Pivot flange 10；Interior extension edge 101；External expansion edge 102；Spacer sleeve 11；Bearing of the crank pin 12；Retaining ring
13；Second bearing of input shaft 14；Hex bolts 15；Sealing ring 16；Rotation axis 17；Worm screw 18；First bearing of input shaft 19；The
Two main shaft bearings 20；Adjusting pad 21；The shaft shoulder 22；Motor fixing plate 23；Motor output shaft 24；Motor 25；Connecting flange 26；It adjusts
Gasket 27.
Specific embodiment
As shown in Figure 1 and 2, a kind of speed reducer for heavy duty, including shell 3, output seat 9 and input shaft 1, on input shaft 1
If eccentric wheel is connect with three Cycloidal Wheels 5 respectively by bearing of the crank pin 12, in shell 3 there are three the eccentric wheel shifted to install
Inner wall is circumferentially equipped with multiple gear pins 4, and gear pin 4 is intermittently engaged with three Cycloidal Wheels 5；One end of the input shaft 1 is equipped with
With the cylinder location hole for connecting motor output shaft 24, motor output shaft 24 is cylinder, thus structure, motor output shaft 24
With input shaft 1 using cylinder positioning by the way of be attached, dismount it is very fast, set on its input shaft 1 there are three dislocation set
The eccentric wheel set can adapt to some biggish use occasions of load.
In preferred embodiment, it is additionally provided with the connecting flange for connecting motor 25, input shaft 1 passes through the center of connecting flange 26
Hole and motor output shaft 24 are socketed, and are set between connecting flange 26 and motor fixing plate 23 between motor 25 and connecting flange 26
There is the adjusting gasket 27 for adjustment axis to position, thus structure, as shown in fig. 1, adjusting gasket 27 is defeated for adjusting motor
The axial position of shaft 25, to make up the axis in the cylinder of motor output shaft 25 and the cylinder location hole process of input shaft 1
To error.
In preferred embodiment, the speed reducer is equipped with pivot flange 10, and pivot flange 10 is located at the side of Cycloidal Wheel 5, exports
Seat 9 is located at the other side of Cycloidal Wheel 5, is fixedly connected between pivot flange 10 and output seat 9 by multiple pivot pins 2 and bolt, by
This structure solves in the prior art by the way that pivot flange 10 and output seat 9 are connected as an entirety, exports 9 cantilever knot of seat
Structure leads to the problem of transmission rigidity deficiency.
In preferred embodiment, the output seat 9 is supported in shell 3 by the first main shaft bearing 7, and pivot flange 10 passes through
Second main shaft bearing 20 is supported in shell 3, thus structure, improves bearing strength.
In preferred embodiment, multiple pivot pins 2 and bolt circumferentially interlaced arrangement, first main shaft bearing 7 or the second
Main shaft bearing 20 is angular contact bearing.In preferred embodiment, the pivot pin 2 passes through the driving hole of Cycloidal Wheel 5, in the outer of pivot pin 2
Wall is equipped with axle sleeve 6.In preferred embodiment, the bolt passes through the driving hole of Cycloidal Wheel 5, is equipped with spacer sleeve in the outer wall of bolt
11.Thus structure improves the assembly precision of output seat 9 and pivot flange 10, reduces artificial installation error
In preferred embodiment, one end of input shaft 1 is supported in output seat 9 by the second bearing of input shaft 14, input shaft 1
The other end is supported in pivot flange 10 by the first bearing of input shaft 19；
The internal diameter of first bearing of input shaft 19 is identical as the internal diameter of the second bearing of input shaft 14.Thus structure improves bearing
Intensity, the internal diameter of the first bearing of input shaft 19 is identical as the internal diameter of the second bearing of input shaft 14, plays preferably cooperation precision.
In preferred embodiment, interior extension edge 101 is equipped in the outer end of pivot flange 10, interior extension edge 101 and first defeated
Enter the outer ring side wall contact of axle bearing 19；External expansion edge 102, external expansion edge 102 are additionally provided in the outer end of pivot flange 10
It is contacted with the inner ring side wall of the second main shaft bearing 20.Thus structure improves the anti-twisting property of entire retarder.
In preferred embodiment, the shaft shoulder 22, In for the second bearing of input shaft of axially position 14 is equipped in the outer wall of input shaft 1
Adjusting pad 21 is equipped between second bearing of input shaft 14 and the shaft shoulder 22.One adjusting pad is usually only set in the prior art, still
The problem of will cause assembly precision.This be easy it is ignored because in the prior art, part is generally viewed as rigid body, but
It is in practical set, especially in the situation of the utility model, multiple hexagon socket head cap screws 15 will entirely export seat 9 and supporting methods
Orchid 10 tenses and is integrated, and there are small deformation, adjusting pads 21 can compensate for the deformation of position of bearings, further mention for position of bearings
High assembly precision.
The above embodiments are only the optimal technical scheme of the utility model, and are not construed as the limit for the utility model
System, the technical solution that the protection scope of the utility model should be recorded with claim, the technical solution recorded including claim
The equivalents of middle technical characteristic are protection scope.Equivalent replacement i.e. within this range is improved, also in the utility model
Protection scope within.
Claims (10)
1. a kind of speed reducer for heavy duty, including shell (3), output seat (9) and input shaft (1), it is characterized in that: input shaft
(1) it being set on there are three the eccentric wheel shifted to install, eccentric wheel is connect with three Cycloidal Wheels (5) respectively by bearing of the crank pin (12),
It is circumferentially equipped with multiple gear pins (4) in the inner wall of shell (3), gear pin (4) is engaged with three Cycloidal Wheel (5) intervals；It is described
One end of input shaft (1) is equipped with for connecting the cylinder location hole of motor output shaft (24), and motor output shaft (24) is cylinder
Shape.
2. a kind of speed reducer for heavy duty according to claim 1, it is characterized in that: being additionally provided with for connecting motor (25)
Connecting flange, input shaft (1) passes through the centre bore of connecting flange (26) and motor output shaft (24) are socketed；
It is equipped between connecting flange (26) and motor fixing plate (23) for adjusting between motor (25) and connecting flange (26)
Save the adjusting gasket (27) of axial position.
3. a kind of speed reducer for heavy duty according to claim 1, it is characterized in that: the speed reducer is equipped with pivot flange
(10), pivot flange (10) is located at the side of Cycloidal Wheel (5), and output seat (9) is located at the other side of Cycloidal Wheel (5), pivot flange
(10) it is fixedly connected between output seat (9) by multiple pivot pins (2) and bolt.
4. a kind of speed reducer for heavy duty according to claim 1, it is characterized in that: the output seat (9) passes through first
Main shaft bearing (7) is supported in shell (3), and pivot flange (10) is supported in shell (3) by the second main shaft bearing (20),
Input shaft (1) outer end is equipped with the keyway for positioning anti-rotation.
5. a kind of speed reducer for heavy duty according to claim 4, it is characterized in that: multiple pivot pins (2) and bolt are along circle
All interlaced arrangements, first main shaft bearing (7) or the second main shaft bearing (20) are angular contact bearing.
6. a kind of speed reducer for heavy duty according to claim 5, it is characterized in that: the pivot pin (2) passes through Cycloidal Wheel
(5) driving hole is equipped with axle sleeve (6) in the outer wall of pivot pin (2).
7. a kind of speed reducer for heavy duty according to claim 5, it is characterized in that: the bolt passes through Cycloidal Wheel (5)
Driving hole, bolt outer wall be equipped with spacer sleeve (11).
8. a kind of speed reducer for heavy duty according to claim 4, it is characterized in that: one end of input shaft (1) passes through second
Bearing of input shaft (14) is supported in output seat (9), and the other end of input shaft (1) is supported on by the first bearing of input shaft (19)
In pivot flange (10)；
The internal diameter of first bearing of input shaft (19) is identical as the internal diameter of the second bearing of input shaft (14).
9. a kind of speed reducer for heavy duty according to claim 8, it is characterized in that: being equipped in the outer end of pivot flange (10)
Interior extension edge (101), interior extension edge (101) contact with the outer ring side wall of the first bearing of input shaft (19)；In pivot flange
(10) outer end is additionally provided with external expansion edge (102), and external expansion edge (102) and the inner ring side wall of the second main shaft bearing (20) connect
Touching.
10. a kind of speed reducer for heavy duty according to claim 1, it is characterized in that: the outer wall in input shaft (1) is equipped with use
In the shaft shoulder (22) of the second bearing of input shaft of axially position (14), it is equipped between the second bearing of input shaft (14) and the shaft shoulder (22)
Adjusting pad (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920144629.1U CN209587059U (en) | 2019-01-28 | 2019-01-28 | Speed reducer for heavy duty |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920144629.1U CN209587059U (en) | 2019-01-28 | 2019-01-28 | Speed reducer for heavy duty |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209587059U true CN209587059U (en) | 2019-11-05 |
Family
ID=68380973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920144629.1U Active CN209587059U (en) | 2019-01-28 | 2019-01-28 | Speed reducer for heavy duty |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209587059U (en) |
-
2019
- 2019-01-28 CN CN201920144629.1U patent/CN209587059U/en active Active
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