CN108895121A - Worm type of reduction gearing and decelerating motor - Google Patents
Worm type of reduction gearing and decelerating motor Download PDFInfo
- Publication number
- CN108895121A CN108895121A CN201811045841.9A CN201811045841A CN108895121A CN 108895121 A CN108895121 A CN 108895121A CN 201811045841 A CN201811045841 A CN 201811045841A CN 108895121 A CN108895121 A CN 108895121A
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- Prior art keywords
- hock
- disk
- pawl disk
- reduction gearing
- pawl
- Prior art date
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- 210000004124 hock Anatomy 0.000 claims abstract description 120
- 230000005540 biological transmission Effects 0.000 claims abstract description 32
- 210000000078 claw Anatomy 0.000 claims description 18
- 241000237858 Gastropoda Species 0.000 claims description 2
- 230000003068 static effect Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000006467 substitution reaction Methods 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
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
- F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
- F16H1/16—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
- H02K7/1163—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion
- H02K7/1166—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion comprising worm and worm-wheel
Abstract
The present invention 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 present invention 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 present invention 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.
Summary of the invention
The present invention provides a kind of worm type of reduction gearing and the decelerating motor containing the worm type of reduction gearing, to solve to subtract
The problem of speed motor difficulty in starting.
To achieve the goals above, one aspect of the present invention provides a kind of worm type of reduction gearing, including worm screw, the worm screw
One end be equipped with the first pawl disk coaxial with the worm screw, the side away from the worm screw of the first pawl disk is equipped with the first tooth
Pawl；The worm type of reduction gearing further includes the transmission component for driving worm screw rotation, the transmission component with it is described
First pawl disk coaxial arrangement, and with first hock cooperate with first hock in the circumferential direction of the first pawl disk shape
At 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.
Another aspect of the present invention provides a kind of decelerating motor, and the decelerating motor includes motor, controller and worm and gear
Retarder, the controller is electrically connected with the rotation direction and rotation time for controlling the motor with the motor, described
Worm type of reduction gearing is above-described worm type of reduction gearing.
Through the above technical solutions, worm type of reduction gearing of the invention between the first hock and transmission component by setting
Circumferential gap is set, so that there are the time differences can be improved biography using this time difference for the movement of the first pawl disk and transmission component
The angular momentum of dynamic component, and the angular momentum of transmission component can be converted into the momentum acted on worm screw, to reach to overcome and be
The purpose of maximum static friction force in system, so that decelerating motor easily starts up.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of worm type of reduction gearing according to an embodiment of the present invention；
Fig. 2 is the explosive view of worm screw and transmission component in Fig. 1；
Fig. 3 is the structural schematic diagram of worm screw according to an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of driving pawl disk according to an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of the second pawl disk according to an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of decelerating motor according to an embodiment of the present invention.
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
Detailed description of the preferred embodiments below.It should be understood that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
One aspect of the present invention provides a kind of worm type of reduction gearing, which includes worm screw 1, the worm screw
1 one end is equipped with the first pawl disk 2 coaxial with the worm screw 1, the first pawl disk 2 away from 1 side of worm screw equipped with the
One 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 with first hock 21 cooperate with first hock 21 described first
The week of pawl disk 2 is upwardly formed gap.
Worm type of reduction gearing of the invention through the above scheme, keeps the transmission component 5 and first hock 21 same
Axis setting, and cooperate with first hock 21 with first hock 21 between being upwardly formed in week of the first pawl disk 2
Gap, so that there are the time differences can be improved institute using this time difference for the movement of the transmission component 5 and the first pawl disk 2
The angular momentum of transmission component 5 is stated, and the angular momentum of the transmission component 5 can be converted into the momentum acted on the worm screw 1,
To achieve the purpose that overcome the maximum static friction force in system, so that decelerating motor easily starts up.
Specifically, the present invention is driven by the way that the first pawl disk 2 is arranged in one end of the worm screw 1 by the transmission component 5
The first pawl disk 2 rotates, since there are circumferential gaps with the transmission component 5 for first hock 21, so that the transmission
Component 5 is first rotated without driving the first pawl disk 2 to rotate, when the transmission component 5 and the first pawl disk 2 collide,
The angular momentum of the transmission component 5 is 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 preferred embodiment of the invention,
The transmission component 5 includes the second pawl disk 3 and driving pawl disk 4 of coaxial arrangement, and the driving pawl disk 4 is folded in first pawl
Between disk 2 and the second pawl disk 3, by the way that the driving pawl disk 4 is arranged, the second pawl disk 3 and first pawl can be made
Relative rotation angle between disk 2 increases, so that the angular momentum of the transmission component 5 be made to increase, the transmission component 5 is to described
When worm screw 1 is impacted, 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 cooperates with second hock 31
And gap is upwardly formed 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 preferred embodiment of the invention, as shown in figure 4, institute
State third claw disk 41 side away from the third hock 411 and the four paws disk 42 away from the 4th hock 421
Side be fixedly connected, achieve 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 preferred embodiment of the invention, first tooth
Pawl 11, second hock 31, the third hock 411 and the 4th hock 421 be separately fixed at the first pawl disk 2,
The edge (- Fig. 5 referring to fig. 2) of the second pawl disk 3, the third claw disk 41 and the four paws disk 42.
In the present invention, the first hock 11, the second hock 31, the number of third hock 411 and the 4th hock 421 are unrestricted
System, can be 1, is also possible to multiple.And in order to increase the relative rotation angle between the intensity of pawl disk and pawl disk, according to this
A kind of preferred embodiment of invention, the worm type of reduction gearing includes the multiple of the circumferentially-spaced arrangement along the worm screw 1
First hock 21, multiple second hocks 31, multiple third hocks 411 and multiple 4th hocks 421.It is excellent
Choosing, the quantity difference of first hock 21, second hock 31, the third hock 411 and the 4th hock 421
It is 1 to 3, it is further preferred that first hock 21, second hock 31, the third hock 411 and the described 4th
The quantity of hock 421 is respectively 2.
In order to reduce the pressure between hock contact surface, a preferred embodiment of the invention, first tooth
The shape of the cross section of pawl 21, second hock 31, the third hock 411 and the 4th hock 421 is fan ring, this
It is at the time of contact face contact between sample hock, so that the pressure between hock reduces.
In order to increase the relative rotation angle between pawl disk, a preferred embodiment of the invention, described first
The fan ring of every kind of hock in hock 21, second hock 31, the third hock 411 and the 4th hock 421
The summation of angle is less than 150 degree.Preferably, first hock 21, second hock 31, the third hock 411 and institute
The summation of the angle of the fan ring of every kind of hock in the 4th hock 421 is stated between 40 degree to 120 degree, can guarantee phase in this way
There are sufficiently large gaps between the hock of cooperation.
In the present invention, a preferred embodiment of the invention, the first pawl disk 2, the second pawl disk 3 and institute
It states and is additionally provided with spindle hole on driving pawl disk 4, the aperture of the spindle hole on the second pawl disk 3 is less than the first pawl disk 2
With the aperture of the spindle hole on the driving pawl disk 4.Such setting makes the input shaft cooperated with worm type of reduction gearing
It 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, to make described
Input shaft drives the second pawl disk 3 to rotate in rotation, and the driving pawl disk 4 is remain stationary with the first pawl disk 2.
In the present invention, the worm type of reduction gearing may also include worm gear 8, and the worm gear 8 is engaged with the worm screw 1, such as
Shown in Fig. 1.
Another aspect of the present invention provides a kind of decelerating motor, and the decelerating motor includes motor 6, controller 7 and above-mentioned snail
Worm and gear retarder, the controller 7 are electrically connected with the motor 6 with the rotation direction and rotation for controlling the motor 6
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.
For a better understanding of the present invention, the principle of worm type of reduction gearing of the present invention is explained below：
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 number
According to substitutionObtain M2/M1It is 2.24, the torque M caused by impacting2It is 2.24 times of electric motor starting torque, with this
The maximum static friction force in decelerating motor is broken through, worm screw 1 is driven to rotate.And in the prior art, on startup, main shaft drives motor
Worm screw moves synchronously, and is unable to complete the process that angular momentum among the above is converted into momentum, so when loading moment is larger, motor without
Method overcomes 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.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail within the scope of the technical concept of the present invention can be with various simple variants of the technical solution of the present invention are made, this
A little simple variants all belong to the scope of protection of the present invention.
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 present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
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 (11), 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 |
|---|---|---|---|
| CN201811045841.9A CN108895121B (en) | 2018-09-07 | Worm gear reducer and gear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811045841.9A CN108895121B (en) | 2018-09-07 | Worm gear reducer and gear motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108895121A true CN108895121A (en) | 2018-11-27 |
| CN108895121B CN108895121B (en) | 2024-05-03 |
Family
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111623082A (en) * | 2020-05-25 | 2020-09-04 | 衢州一诚工业设计有限公司 | Worm gear and worm transmission mechanism, worm gear and worm reducer and speed reducing motor |
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