CN209587060U - Speed reducer for underloading - Google Patents
Speed reducer for underloading Download PDFInfo
- Publication number
- CN209587060U CN209587060U CN201920144674.7U CN201920144674U CN209587060U CN 209587060 U CN209587060 U CN 209587060U CN 201920144674 U CN201920144674 U CN 201920144674U CN 209587060 U CN209587060 U CN 209587060U
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- Prior art keywords
- bearing
- input shaft
- speed reducer
- underloading
- pivot
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 27
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 238000009434 installation Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 238000007789 sealing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 241000233855 Orchidaceae Species 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
A kind of speed reducer for underloading, including shell, output seat and input shaft, input shaft is equipped with an eccentric wheel, eccentric wheel is connect with a Cycloidal Wheel respectively by bearing of the crank pin, multiple gear pins are circumferentially equipped in the inner wall of shell, gear pin is engaged with two Cycloidal Wheel intervals, the input shaft outer end is equipped with the keyway for positioning anti-rotation, it is connect respectively with a Cycloidal Wheel equipped with an eccentric wheel by bearing of the crank pin on input shaft, mechanical structure is simplified, suitable for being lightly loaded the deceleration application occasion of low speed.
Description
Technical field
The utility model relates to a kind of speed reducers, more particularly, to a kind of speed reducer for underloading.
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.
The assembly precision of existing cycloid wheel reducer is more demanding, more demanding for the proficiency of assembler.
Such as Chinese patent literature CN104819254A describes a kind of single axis cycloid speed reducer, rolling shaft structure therein is complicated,
And part is more, installation and adjustment are complicated.
Utility model content
The main purpose of the utility model is to provide a kind of speed reducers for underloading, solve single axis cycloid speed reducer
Structure is complicated, the problem of installation and debugging difficulty.
A kind of in order to solve the above technical problems, the technical scheme adopted by the utility model is: speed reducer for underloading,
Including shell, output seat and input shaft, input shaft is equipped with an eccentric wheel, and eccentric wheel is put with one respectively by bearing of the crank pin
Line wheel connection is circumferentially equipped with multiple gear pins in the inner wall of shell, and gear pin is engaged with two Cycloidal Wheel intervals, the input
Axis outer end is equipped with the keyway for positioning anti-rotation.
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.
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 underloading, and an eccentric wheel is housed on input shaft and passes through crank axle
It holds and is connect respectively with a Cycloidal Wheel, simplify mechanical structure, suitable for being lightly loaded the deceleration application occasion of low speed, also using support
Flange, pivot pin and output seat are connected as the structure of an entirety, enhance transmission rigidity, while structure is more compact, reduce
The space occupied optimizes the transmission of planetary gear, reduces components compared with traditional RV speed reducer.Make retarder volume more
Small, installation is more flexible by the operating of manipulator, and the insufficient field of output torque that can replace harmonic wave speed reducing machine completely uses.
In preferred scheme, by the Cycloid tooth profile correction of the flank shape scheme of optimization, using the negative scheme for equidistantly adding negative modification of moved distance and turn
Angle correction of the flank shape uses the scheme of independent calculation formula, and the accuracy of mesh of Cycloidal Wheel and gear pin is higher, and realizes return difference less than 1 arc
Point, can replace harmonic wave speed reducing machine completely uses field.This type is applicable in rear three axis joint of six-shaft industrial robot, also fits
Humanoid robot is serviced with small intelligent.
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 utility model sealing structure main view；
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.
Specific embodiment
As shown in Figure 1 and 2, a kind of speed reducer for underloading, including shell 3, output seat 9 and input shaft 1, on input shaft 1
Equipped with an eccentric wheel, eccentric wheel is connect respectively by bearing of the crank pin 12 with a Cycloidal Wheel 5, shell 3 inner wall circumferentially
Equipped with multiple gear pins 4, gear pin 4 is intermittently engaged with two Cycloidal Wheels 5, and 1 outer end of input shaft is equipped with for positioning anti-rotation
Keyway, thus structure connect on input shaft 1 respectively with a Cycloidal Wheel 5 by bearing of the crank pin 12 equipped with an eccentric wheel, simple
Change mechanical structure, suitable for being lightly loaded the deceleration application occasion of low speed, installation can have been simplified, while can also improve installation accuracy,
Also manufacturing cost is reduced, mechanism is simple, easy to use.
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 (9)
1. a kind of speed reducer for underloading, including shell (3), output seat (9) and input shaft (1), it is characterized in that: input shaft
(1) it is equipped with an eccentric wheel, eccentric wheel is connect with a Cycloidal Wheel (5) respectively by bearing of the crank pin (12), in shell (3)
Inner wall is circumferentially equipped with multiple gear pins (4), and gear pin (4) is engaged with two Cycloidal Wheel (5) intervals, and the input shaft (1) is outside
End is equipped with the keyway for positioning anti-rotation.
2. a kind of speed reducer for underloading 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.
3. a kind of speed reducer for underloading 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).
4. a kind of speed reducer for underloading according to claim 3, 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.
5. a kind of speed reducer for underloading according to claim 4, 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).
6. a kind of speed reducer for underloading according to claim 4, it is characterized in that: the bolt passes through Cycloidal Wheel (5)
Driving hole, bolt outer wall be equipped with spacer sleeve (11).
7. a kind of speed reducer for underloading according to claim 3, 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).
8. a kind of speed reducer for underloading according to claim 7, 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.
9. a kind of speed reducer for underloading 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 |
|---|---|---|---|
| CN201920144674.7U CN209587060U (en) | 2019-01-28 | 2019-01-28 | Speed reducer for underloading |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920144674.7U CN209587060U (en) | 2019-01-28 | 2019-01-28 | Speed reducer for underloading |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209587060U true CN209587060U (en) | 2019-11-05 |
Family
ID=68380977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920144674.7U Active CN209587060U (en) | 2019-01-28 | 2019-01-28 | Speed reducer for underloading |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209587060U (en) |
-
2019
- 2019-01-28 CN CN201920144674.7U patent/CN209587060U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Reducer for light loads Granted publication date: 20191105 Pledgee: Agricultural Bank of China Limited Hubei pilot Free Trade Zone Wuhan Area Branch Pledgor: HUBEI SIWEITE TRANSMISSION Co.,Ltd. Registration number: Y2024980013641 |