CN208804177U - Worm type of reduction gearing and decelerating motor - Google Patents
Worm type of reduction gearing and decelerating motor Download PDFInfo
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- CN208804177U CN208804177U CN201821469445.4U CN201821469445U CN208804177U CN 208804177 U CN208804177 U CN 208804177U CN 201821469445 U CN201821469445 U CN 201821469445U CN 208804177 U CN208804177 U CN 208804177U
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- hock
- disk
- pawl disk
- reduction gearing
- pawl
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Abstract
The utility model relates to retarder fields, disclose a kind of worm type of reduction gearing, the worm type of reduction gearing includes worm screw, and one end of the worm screw is equipped with the first pawl disk coaxial with the worm screw, and the side away from the worm screw of the first pawl disk is equipped with the first hock；The worm type of reduction gearing further includes the transmission component for driving the worm screw rotation, and the transmission component and the first pawl disk are coaxially disposed, and are cooperated with first hock to be upwardly formed gap in week in the first pawl disk with first hock.The utility model between the first hock and transmission component by being arranged circumferential gap, so that there are the time differences for the movement of the first pawl disk and transmission component, utilize this time difference, it can be improved the angular momentum of transmission component, and the angular momentum of transmission component can be converted into the momentum acted on worm screw, to achieve the purpose that overcome the maximum static friction force in system, so that decelerating motor easily starts up.
Description
Technical field
The utility model relates to retarder fields, more particularly to a kind of worm type of reduction gearing and decelerating motor.
Background technique
Worm type of reduction gearing drives worm gear to rotate using the rotation of worm screw, so that reaching reduces revolving speed, increases torque
Effect, worm type of reduction gearing play a part of to match revolving speed between prime mover and working machine or executing agency and transmit torque.
Decelerating motor is the aggregate of retarder and motor, and electric machine main shaft is directly connect with retarder, defeated by the output shaft of retarder
Revolving speed out.
Decelerating motor needs to overcome on startup stiction and load torque in system, due to stiction relative to
Kinetic force of friction is larger, load torque remains unchanged, so the main shaft of decelerating motor on startup can not when load torque is larger
Overcome maximum static friction, the problem of appearance can not rotate.Decelerating motor difficulty in starting is current urgent problem to be solved.
Utility model content
The utility model provides a kind of worm type of reduction gearing and the decelerating motor containing the worm type of reduction gearing, with solution
Certainly the problem of decelerating motor difficulty in starting.
To achieve the goals above, on the one hand the utility model provides a kind of worm type of reduction gearing, including worm screw, described
One end of worm screw is equipped with the first pawl disk coaxial with the worm screw, and the side away from the worm screw of the first pawl disk is equipped with the
One hock；The worm type of reduction gearing further includes the transmission component for driving worm screw rotation, the transmission component with
First pawl disk coaxial arrangement, and with first hock cooperate with first hock the first pawl disk circumferential direction
Upper formation gap.
Preferably, the transmission component includes the second pawl disk and driving pawl disk of coaxial arrangement, and the driving pawl disk folder is set
Between the first pawl disk and the second pawl disk.
Preferably, the second pawl disk is equipped with the second hock, the driving pawl Pan Bao close to the side of the driving pawl disk
The third claw disk and four paws disk of coaxial arrangement are included, the third claw disk is arranged and at it close to described close to the first pawl disk
The side of first pawl disk is equipped with third hock, and the side away from the third claw disk of the four paws disk is equipped with the 4th tooth
Pawl；The third hock and first hock cooperate and are upwardly formed gap in week in the first pawl disk；Described
Four hocks and second hock cooperate and are upwardly formed gap in week in the second pawl disk.
Preferably, the side away from the third hock of the third claw disk and the four paws disk away from described the
The side of four hocks is fixedly connected.
Preferably, first hock, second hock, the third hock and the 4th hock are separately fixed at
The first pawl disk, the second pawl disk, the third claw disk and the four paws disk edge.
Preferably, the worm type of reduction gearing includes multiple first teeth of the circumferentially-spaced arrangement along the worm screw
Pawl, multiple second hocks, multiple third hocks and multiple 4th hocks.
Preferably, the cross section of first hock, second hock, the third hock and the 4th hock
Shape is fan ring.
Preferably, every kind of hock in first hock, second hock, the third hock and the 4th hock
The fan ring angle summation less than 150 degree.
Preferably, it is additionally provided with spindle hole on the first pawl disk, the second pawl disk and the driving pawl disk, described second
The aperture of the spindle hole on pawl disk is less than the aperture of the first pawl disk and the spindle hole on the driving pawl disk.
On the other hand the utility model provides a kind of decelerating motor, the decelerating motor includes motor, controller and worm gear
Worm reducer, the controller are electrically connected with the rotation direction and rotation time for controlling the motor with the motor,
The worm type of reduction gearing is above-described worm type of reduction gearing.
Through the above technical solutions, the worm type of reduction gearing of the utility model by the first hock and transmission component it
Between circumferential gap is set so that the movement of the first pawl disk and transmission component utilizes this time difference, Neng Gouti there are the time difference
The angular momentum of high transmission component, and the angular momentum of transmission component can be converted into the momentum acted on worm screw, to reach gram
The purpose of maximum static friction force in dress system, so that decelerating motor easily starts up.
Detailed description of the invention
Fig. 1 is according to a kind of structural schematic diagram of the worm type of reduction gearing of embodiment of the utility model；
Fig. 2 is the explosive view of worm screw and transmission component in Fig. 1；
Fig. 3 is according to a kind of structural schematic diagram of the worm screw of embodiment of the utility model；
Fig. 4 is the structural schematic diagram according to a kind of driving pawl disk of embodiment of the utility model；
Fig. 5 is the structural schematic diagram according to a kind of the second pawl disk of embodiment of the utility model；
Fig. 6 is according to a kind of structural schematic diagram of the decelerating motor of embodiment of the utility model.
Description of symbols
1 worm screw, 2 first pawl disk
3 second pawl disk, 4 driving pawl disk
5 transmission component, 6 motor
7 controller, 8 worm gear
21 first hock, 31 second hock
41 third claw disk, 42 four paws disk
The 4th hock of 411 third hock 421
Specific embodiment
Specific embodiment of the present utility model is described in detail below.It should be understood that described herein
Specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.
On the one hand the utility model provides a kind of worm type of reduction gearing, which includes worm screw 1, described
One end of worm screw 1 is equipped with the first pawl disk 2 coaxial with the worm screw 1, and the first pawl disk 2 is set away from 1 side of worm screw
There is the first hock 21；The worm type of reduction gearing further includes the transmission component 5 for driving the worm screw 1 to rotate, the biography
Dynamic component 5 is coaxially disposed with the first pawl disk 2, and with first hock 21 cooperate with first hock 21 described
First pawl disk 2 is upwardly formed gap in week.
The worm type of reduction gearing of the utility model through the above scheme, makes the transmission component 5 and first hock
21 coaxial arrangement, and with first hock 21 cooperate with first hock 21 in the circumferential direction of the first pawl disk 2 shape
At gap, so that the movement of the transmission component 5 and the first pawl disk 2 can using this time difference there are the time difference
The angular momentum of the transmission component 5 is improved, and the angular momentum of the transmission component 5 can be converted into and act on the worm screw 1
Momentum, to achieve the purpose that overcome the maximum static friction force in system, so that decelerating motor easily starts up.
Specifically, the utility model passes through the transmission component 5 by the way that the first pawl disk 2 is arranged in one end of the worm screw 1
The first pawl disk 2 is driven to rotate, since there are circumferential gaps with the transmission component 5 for first hock 21, so that described
Transmission component 5 is first rotated without driving the first pawl disk 2 to rotate, when the transmission component 5 occurs with the first pawl disk 2
Collision, the angular momentum of the transmission component 5 are converted into the momentum acted on the worm screw 1, and the transmission component 5 drives described
First pawl disk 2 continues to rotate, to start decelerating motor.
In order to further increase the numerical value of the momentum acted on worm screw 1, a kind of preferred implementation according to the present utility model
Mode, the transmission component 5 include the second pawl disk 3 and driving pawl disk 4 of coaxial arrangement, and the driving pawl disk 4 is folded in described
Between first pawl disk 2 and the second pawl disk 3, by the way that the driving pawl disk 4 is arranged, can make the second pawl disk 3 with it is described
Relative rotation angle between first pawl disk 2 increases, thus increase the angular momentum of the transmission component 5, the transmission component 5
When impacting to the worm screw 1, the momentum acted on worm screw 1 increases.
Specifically, as depicted in figs. 1 and 2, the second pawl disk 3 is equipped with the second tooth close to the side of the driving pawl disk 4
Pawl 31, the driving pawl disk 4 include the third claw disk 41 and four paws disk 42 of coaxial arrangement, and the third claw disk 41 is close to described
First pawl disk 2 setting and its on the side of the first pawl disk 2 be equipped with third hock 411, the four paws disk 42
The 4th hock 421 is equipped with away from the side of the third claw disk 41；The third hock 411 and first hock 21 are mutual
Gap is upwardly formed in week in the first pawl disk 2 with merging；4th hock 421 and the 31 phase interworking of the second hock
Merge and is upwardly formed gap in week in the second pawl disk 3.
By the way that the driving pawl disk 4 is arranged, make between the first pawl disk 2 and the third claw disk 41, second pawl
It can be rotated coaxially between disk 3 and the four paws disk 42, reaching makes between the first pawl disk 2 and the second pawl disk 3
The purpose that angle becomes larger is relatively rotated, the angular speed of the second pawl disk 3 is improved with this, to improve the second pawl disk 3
Angular momentum.
In order to improve the energy transfer efficiency of system, a kind of preferred embodiment according to the present utility model, such as Fig. 4 institute
Show, the side away from the third hock 411 of the third claw disk 41 is with the four paws disk 42 away from the 4th tooth
The side of pawl 421 is fixedly connected, and achievees the purpose that the third claw disk 41 is moved synchronously with the four paws disk 42.
In order to improve the maximum value of hock transmitting torque, a kind of preferred embodiment according to the present utility model, described the
One hock 21, second hock 31, the third hock 411 and the 4th hock 421 are separately fixed at first pawl
Disk 2, the second pawl disk 3, the third claw disk 41 and the four paws disk 42 edge (- Fig. 5 referring to fig. 2).
In the utility model, the first hock 21, the second hock 31, third hock 411 and the 4th hock 421 number not
It is restricted, can be 1, be also possible to multiple.And in order to increase the relative rotation angle between the intensity of pawl disk and pawl disk, root
According to a kind of preferred embodiment of the utility model, the worm type of reduction gearing includes the circumferentially-spaced row along the worm screw 1
Multiple first hocks 21, multiple second hocks 31, multiple third hocks 411 and multiple 4th teeth of cloth
Pawl 421.Preferably, first hock 21, second hock 31, the third hock 411 and the 4th hock 421
Quantity is respectively 1 to 3, it is further preferred that first hock 21, second hock 31,411 and of third hock
The quantity of 4th hock 421 is respectively 2.
In order to reduce the pressure between hock contact surface, a kind of preferred embodiment according to the present utility model, described
The shape of the cross section of one hock 21, second hock 31, the third hock 411 and the 4th hock 421 is fan
Ring is at the time of contact face contact between such hock, so that the pressure between hock reduces.
In order to increase the relative rotation angle between pawl disk, a kind of preferred embodiment according to the present utility model is described
The fan of every kind of hock in first hock 21, second hock 31, the third hock 411 and the 4th hock 421
The summation of the angle of ring is less than 150 degree.Preferably, first hock 21, second hock 31, the third hock 411
And in the 4th hock 421 angle of the fan ring of every kind of hock summation between 40 degree to 120 degree, can protect in this way
There are sufficiently large gaps between the hock that card matches.
In the utility model, a kind of preferred embodiment according to the present utility model, the first pawl disk 2, described second
Spindle hole is additionally provided on pawl disk 3 and the driving pawl disk 4, the aperture of the spindle hole on the second pawl disk 3 is less than described
The aperture of first pawl disk 2 and the spindle hole on the driving pawl disk 4.Such setting makes to cooperate with worm type of reduction gearing
Input shaft can be interference fitted with the second pawl disk 3, and the driving pawl disk 4 and 2 clearance fit of the first pawl disk, from
And make the input shaft in rotation, drive the second pawl disk 3 to rotate, and the driving pawl disk 4 and the first pawl disk 2
It remain stationary.
In the utility model, the worm type of reduction gearing may also include worm gear 8, and the worm gear 8 is nibbled with the worm screw 1
It closes, as shown in Figure 1.
On the other hand the utility model provides a kind of decelerating motor, the decelerating motor include motor 6, controller 7 and on
State worm type of reduction gearing, the controller 7 be electrically connected with the motor 6 with for controlling the motor 6 rotation direction and
Rotation time.
When work, when the external world inputs positive rotaring signal, the controller 7 is negated, and issues reverse signal, and continue one
It fixes time, during this period of time, the second pawl disk 3 drives the driving pawl disk 4 to move, until the of the driving pawl disk 4
Three hocks 411 are contacted with first hock 21, and then, the controller 7 issues positive rotaring signal, and the motor 6 rotates forward；When outer
When boundary inputs reverse signal, the controller 7 is negated, and positive rotaring signal, and certain time is issued, in this period
Interior, the second pawl disk 3 drives the driving pawl disk 4 to move, until the third hock 411 of the driving pawl disk 4 and described the
The contact of one hock 21, then, the controller 7 issue reverse signal, and the motor 6 inverts.
The principle of the utility model worm type of reduction gearing is explained below in the utility model in order to better understand:
For a specific motor 6, angular acceleration is determining, α=M1/ I, wherein M1It is detent torque, is
1.7 to 2.2 times of nominal torque M0, take M1For 2.2M0, I is rotary inertia,Then α isThe maximum of motor is freely
Rotational angleIt is determining, maximum maximum angular of the main axis without drive worm screw rotation that angle is freely rotated and refers to motor
Degree because α andIt determines, according to formulaIt obtains, the time is freely rotated in the main shaft maximum of motorRoot as a result,
It is obtained according to formula ω=α t,Regard the main shaft of motor as cylindrical body, the centre of gyration of cylindrical body is cylindrical body
Axis show that the rotary inertia of the main shaft of motor isWherein, m is the quality of main shaft, and r is the radius of cylindrical body；For
One specific motor 6, the rotary inertia of main shaft are that definite value is obtained according to the calculation formula L=I ω of angular momentumThe rotational angle of motor is obtained according to above-mentioned formulaAfterwards, angular momentum is generatedMain shaft band
Dynamic second pawl disk 3 impacts the first pawl disk 2, and the angular momentum of main shaft is in t2The momentum of worm screw 1 is converted into time, according to punching
The calculation formula I=∫ Mdt of amount, obtainsFinally obtain M2ForM2/M1?
It is measured through many experiments, the average impact time, Δ t was about 0.058s, the equivalent diameter of the rotor of the motor in experiment
For 40mm, rotor quality 350g, angle is freely rotated in maximumFor 0.75 π rad, torque 0.037NM, according to above-mentioned data,
It substitutes intoObtain M2/M1It is 2.24, the torque M caused by impacting2It is 2.24 times of electric motor starting torque, it is prominent with this
Maximum static friction force in broken decelerating motor, drives worm screw 1 to rotate.And in the prior art, on startup, main shaft drives snail to motor
Bar moves synchronously, and is unable to complete the process that angular momentum among the above is converted into momentum, so motor can not when loading moment is larger
Overcome maximum static friction force, causes main shaft that can not rotate.
Among the above, time t is freely rotated in the main shaft maximum of the motor 61It is similarly the signal of 7 pairs of controller inputs
After being negated, the duration of negated signal.
Preferred embodiments of the present invention are described in detail above, still, the utility model is not limited to above-mentioned reality
Apply the detail in mode, in the range of the technology design of the utility model, can to the technical solution of the utility model into
The a variety of simple variants of row, these simple variants belong to the protection scope of the utility model.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the utility model is to each
No further explanation will be given for the possible combination of kind.
In addition, any combination can also be carried out between a variety of different embodiments of the utility model, as long as it is not disobeyed
The thought for carrying on the back the utility model, equally should be considered as content disclosed in the utility model.
Claims (10)
1. a kind of worm type of reduction gearing, including worm screw (1), which is characterized in that one end of the worm screw (1) is equipped with and the snail
The side away from the worm screw (1) of the first coaxial pawl disk (2) of bar (1), the first pawl disk (2) is equipped with the first hock
(21)；The worm type of reduction gearing further includes the transmission component (5) for driving the worm screw (1) to rotate, the transmission group
Part (5) and the first pawl disk (2) are coaxially disposed, and cooperate with first hock (21) to exist with first hock (21)
The first pawl disk (2) is upwardly formed gap in week.
2. worm type of reduction gearing according to claim 1, which is characterized in that the transmission component (5) includes coaxially setting
The the second pawl disk (3) and driving pawl disk (4) set, the driving pawl disk (4) are folded in the first pawl disk (2) and second pawl
Between disk (3).
3. worm type of reduction gearing according to claim 2, which is characterized in that the second pawl disk (3) is close to the biography
The side of pawl disk (4) is equipped with the second hock (31), and the driving pawl disk (4) includes the third claw disk (41) and the of coaxial arrangement
Four paws disk (42), the third claw disk (41) are arranged and at it close to the first pawl disk (2) close to the first pawl disk (2)
Side is equipped with third hock (411), and the side away from the third claw disk (41) of the four paws disk (42) is equipped with the
Four hocks (421)；The third hock (411) and first hock (21) cooperate and in the first pawl disk (2)
Week is upwardly formed gap；4th hock (421) and second hock (31) cooperate and in the second pawl disk (3)
Be upwardly formed gap in week.
4. worm type of reduction gearing according to claim 3, which is characterized in that deviating from for the third claw disk (41) is described
The side of third hock (411) is fixedly connected with the side away from the 4th hock (421) of the four paws disk (42).
5. worm type of reduction gearing according to claim 3, which is characterized in that first hock (21), described second
Hock (31), the third hock (411) and the 4th hock (421) are separately fixed at the first pawl disk (2), described
The edge of two pawl disks (3), the third claw disk (41) and the four paws disk (42).
6. worm type of reduction gearing according to claim 3, which is characterized in that the worm type of reduction gearing includes along institute
State multiple first hocks (21), multiple second hocks (31), multiple described of the circumferentially-spaced arrangement of worm screw (1)
Three hocks (411) and multiple 4th hocks (421).
7. worm type of reduction gearing according to claim 6, which is characterized in that first hock (21), described second
The shape of the cross section of hock (31), the third hock (411) and the 4th hock (421) is fan ring.
8. worm type of reduction gearing according to claim 7, which is characterized in that first hock (21), described second
The summation of the angle of the fan ring of every kind of hock in hock (31), the third hock (411) and the 4th hock (421)
Less than 150 degree.
9. the worm type of reduction gearing according to any one of claim 2-8, which is characterized in that the first pawl disk
(2), spindle hole, the master on the second pawl disk (3) are additionally provided on the second pawl disk (3) and the driving pawl disk (4)
The aperture of axis hole is less than the aperture of the first pawl disk (2) and the spindle hole on the driving pawl disk (4).
10. a kind of decelerating motor, the decelerating motor includes motor (6), controller (7) and worm type of reduction gearing, feature
It is, when the controller (7) is electrically connected to be used to control the rotation direction and rotation of the motor (6) with the motor (6)
Between, the worm type of reduction gearing worm type of reduction gearing as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821469445.4U CN208804177U (en) | 2018-09-07 | 2018-09-07 | Worm type of reduction gearing and decelerating motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821469445.4U CN208804177U (en) | 2018-09-07 | 2018-09-07 | Worm type of reduction gearing and decelerating motor |
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| Publication Number | Publication Date |
|---|---|
| CN208804177U true CN208804177U (en) | 2019-04-30 |
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ID=66237763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821469445.4U Active CN208804177U (en) | 2018-09-07 | 2018-09-07 | Worm type of reduction gearing and decelerating motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895121A (en) * | 2018-09-07 | 2018-11-27 | 浙江森凯汽车科技有限公司 | Worm type of reduction gearing and decelerating motor |
-
2018
- 2018-09-07 CN CN201821469445.4U patent/CN208804177U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895121A (en) * | 2018-09-07 | 2018-11-27 | 浙江森凯汽车科技有限公司 | Worm type of reduction gearing and decelerating motor |
| CN108895121B (en) * | 2018-09-07 | 2024-05-03 | 莱科(衢州市)科技有限公司 | Worm gear reducer and gear motor |
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