CN109067082A - A kind of motor shaft deceleration mechanism - Google Patents
A kind of motor shaft deceleration mechanism Download PDFInfo
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- CN109067082A CN109067082A CN201810986902.5A CN201810986902A CN109067082A CN 109067082 A CN109067082 A CN 109067082A CN 201810986902 A CN201810986902 A CN 201810986902A CN 109067082 A CN109067082 A CN 109067082A
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- friction sleeve
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- friction
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- 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
- H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
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- Engineering & Computer Science (AREA)
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The present invention relates to technical field of motors, more particularly to a kind of motor shaft deceleration mechanism, including motor shaft, back end cover for motor, the friction sleeve with motor shaft end face contact is equipped at the motor shaft ends, friction sleeve is connected to motor rear end and covers, and back end cover for motor is equipped with friction inner room makes friction sleeve be attached to the elastic component on sealing of motor spindle end face, end face friction, motor shaft has self-lock force in the power-off state, eliminates rotator inertia, slows down or the effect of rotation stop is good.
Description
Technical field
The present invention relates to technical field of motors, and in particular to a kind of motor shaft shutdown deceleration mechanism.
Background technique
Existing motor itself is usually without deceleration mechanism, therefore, after the power-off of motor high speed rotation, due to depositing for inertia
It will continue to rotation a period of time in, motor, need to stop by the frictional resistance of motor itself, slowing effect is poor.
And motor shaft does not have self-lock ability, is unable to satisfy under the operating condition for needing self-locking requirement and uses.
The deceleration of motor shaft with deceleration mechanism motor or the brake of motor are general by the way of brake holding, in motor
Multiple friction plates being distributed in a ring are arranged in the outer peripheral surface of axis, by applying power radially to friction plate, hold friction plate tightly
On the outer peripheral surface of motor shaft, to realize deceleration or the braking action of motor shaft, there are two drawbacks for this kind of mode: 1. electric
Body product is big, and the setting of friction plate certainly will occupy motor inner space, and motor volume is caused to increase, at high cost, is not easy to motor
Use, be 2. easy to cause motor shaft failure, friction plate can wear the surface of motor shaft, can cause motor shaft axial runout, draw
Electrizer fluctuation of service shortens motor service life, influences the normal use of motor.
Summary of the invention
The technical problem to be solved by the present invention is in view of the foregoing drawbacks, provide a kind of motor shaft deceleration mechanism, end face is rubbed
It wipes, motor shaft has self-lock force, eliminates inertia rotation, slows down or the effect of rotation stop is good.
The technical solution adopted by the present invention to solve the technical problems is as follows:
A kind of motor shaft deceleration mechanism, including motor shaft, back end cover for motor, are equipped at the motor shaft ends and motor
The friction sleeve of shaft end face contact, friction sleeve are connected to motor rear end and cover, and back end cover for motor is equipped with friction inner room makes friction sleeve
The elastic component being attached on sealing of motor spindle end face.
Further, the friction is set on inside back end cover for motor at corresponding motor shaft ends, and friction sleeve is close
Back end cover for motor side is equipped with the positioning protrusion in insertion back end cover for motor, and back end cover for motor corresponding position is equipped with and positioning protrusion structure
Identical locating slot, friction sleeve is equipped with close to the side of motor shaft to be extended to motor shaft outer peripheral surface and is set at motor shaft ends
The socket part of outer peripheral surface, socket part and friction sleeve are integrally formed, and the elastic component is the spring being set in outside flap.
Further, the outer peripheral surface of socket part is equipped with conical surface section, and conical surface section is compared with big end far from back end cover for motor side, the conical surface
Section small end outer diameter is consistent with socket part outer diameter, and conical surface section axial length portion is not more than socket part axial length, conical surface section outer diameter
It is incremented by from small end to compared with big end, the internal diameter of the spring is not less than socket part outer diameter, is not more than conical surface section maximum outer diameter,
One end of spring and back end cover for motor inner wall corresponding position contradict, the other end of spring extend to socket part and with socket part conical surface section
Somewhere outer peripheral surface contradict.
Further, the setting of conical surface section in socket part far from back end cover for motor side, at conical surface section largest outside diameter with socket
End of the portion far from back end cover for motor is concordant, and socket part is equipped with far from the end of back end cover for motor and extends radially outwardly along motor shaft
Boss.
Further, multiple tracks is opened up at socket part along the oil storage tank of motor shaft axial direction, multiple tracks oil storage tank is along socket part circumferential direction
It is uniformly distributed.
Further, the outer peripheral surface of the friction sleeve is the conical surface, and friction sleeve small end is towards back end cover for motor side, institute
The internal diameter for the spring stated is not less than outer diameter at friction sleeve minimum, is not more than friction sleeve maximum outer diameter, one end of spring and motor
Rear end cap inner wall corresponding position contradicts, the other end of spring and friction sleeve outer peripheral surface somewhere contradict.
Further, the elastic component is the dish or arc spring lamination being arranged between friction sleeve and back end cover for motor.
Further, the motor rear end stated, which is covered, does separate/close motor shaft ends along axial direction equipped with control friction sleeve
Pushing mechanism, the friction sleeve are equipped with the friction lines of multiple tracks increasing friction force.
Further, the friction sleeve and sealing of motor spindle end face abutted surface are the conical surface, the knot of friction sleeve and sealing of motor spindle end face
Structure mutually coincide.
Further, the friction is set on outside back end cover for motor, and support friction is equipped with outside back end cover for motor
The bracket of set, the elastic component are the spring being arranged between friction sleeve, motor housing outer wall.
The beneficial effects of the present invention are: using the above scheme, by motor shaft ends setting and motor shaft end face contact
Friction sleeve, to sealing of motor spindle end face generate pressure and friction, make motor shaft have self-lock force, have rotation stop, to motor shaft into
Row braking is slowed down, and slowing effect is significant, and friction sleeve is kept in contact with sealing of motor spindle end face always, and the inertia for eliminating motor shaft turns
Dynamic, mechanism occupies little space compared to existing braking mechanism, promotes to reduce motor volume.
Detailed description of the invention
Through the following detailed description taken in conjunction with the accompanying drawings, present invention objects, features and advantages above-mentioned and other will become
Obviously.
Fig. 1 is friction sleeve and the cross section structure schematic diagram at back end cover for motor cooperation in the embodiment of the present invention 1.
Fig. 2 is the cross section structure schematic diagram in the embodiment of the present invention 1 at socket part.
Fig. 3 is the structural schematic diagram invented in a kind of embodiment.
Fig. 4 is the cross section structure schematic diagram in the embodiment of the present invention 2 at socket part.
Fig. 5 is the cross section structure schematic diagram in the embodiment of the present invention 3 at socket part.
Fig. 6 is the cross section structure schematic diagram in the embodiment of the present invention 4 at socket part.
Fig. 7 is the cross section structure schematic diagram of friction sleeve and sealing of motor spindle end face joint in the embodiment of the present invention 5.
Fig. 8 is the cross section structure schematic diagram of friction sleeve and sealing of motor spindle end face joint in the embodiment of the present invention 6.
Fig. 9 is the end view of friction sleeve in the embodiment of the present invention 7.
Figure 10 is the cross section structure schematic diagram in the embodiment of the present invention 8 at friction sleeve.
Figure 11 is friction sleeve and the cross section structure schematic diagram at back end cover for motor cooperation in the embodiment of the present invention 9.
Figure 12 is friction sleeve and the cross section structure schematic diagram at back end cover for motor cooperation in the embodiment of the present invention 10.
Wherein: 1 is motor shaft, and 2 be back end cover for motor, and 21 be locating slot, and 22 be bracket, and 3 be friction sleeve, and 31 be convex
It rises, 32 be socket part, and 33 be boss, and 34 be conical surface section, and 35 be oil storage tank, and 4 be spring, and 5 be elastic slice, and 6 be cylinder.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
Embodiment 1 :-Fig. 3 referring to Fig.1, a kind of motor shaft deceleration mechanism, including motor shaft 1, back end cover for motor 2, motor shaft
1 end is equipped with the friction sleeve 3 contacted with 1 end face of motor shaft, and friction sleeve 3 is made using high molecular abrasion-proof material, rubs
The end of the corresponding motor shaft 1 of back end cover for motor 2 is arranged in set 3, and friction sleeve 3 is equipped with close to the end face of back end cover for motor 2 to electricity
The "-" type positioning protrusion 31 that machine rear end cap 2 protrudes, 2 corresponding position of back end cover for motor are equipped with cooperation positioning protrusion 31 and and convex
The identical locating slot 21 of 31 structures is played, positioning protrusion 31 is caught in locating slot 21, realizes that back end cover for motor 2 determines friction sleeve 3
Position avoids friction sleeve 3 from rotating, and so that fixed friction sleeve 3 is generated frictional force with motor shaft end face contact in rotation, plays and subtract
Speed or the effect for preventing motor shaft rotation.Friction sleeve 3, which is equipped with close to 1 side of motor shaft to motor shaft outer peripheral surface, to be extended and is arranged
Socket part 32 outside 1 end outer peripheral surface of motor shaft, socket part 32 and friction sleeve 3 are integrally formed, and are set in friction sleeve 3
The sleeve structure of motor shaft ends improves the goodness of fit of friction sleeve and motor between centers, reinforces bonding strength, guarantees to motor shaft
Decelerating effect, the outside of socket part 32 are arranged the spring 4 for making friction sleeve 3 keep fitting to contact with sealing of motor spindle end face always, socket
Portion 32 is equipped with the protrusion 33 along motor shaft radial direction far from the end of back end cover for motor, and the setting of protrusion 33 improves friction sleeve entirety
Structural strength, extending the service life of friction sleeve, improving the outer peripheral surface of the socket part 32 on front side of service performance, with protrusion is setting
Conical surface section 34, the outer diameter of 34 small end of conical surface section is consistent with 32 outer diameter of socket part, smoothly connect with 32 outer peripheral surface of socket part, bore
Face section 34 compared with big end with smoothly connect at boss 33, the outer diameter of spring 4 is consistent with socket part outer diameter, one end conflict of spring 4
At 34 small end of conical surface section, the other end of spring 4 is resisted against back end cover for motor inner wall corresponding position, and spring 4 is in pressure
Contracting state, the elastic force of spring 4 makes friction sleeve 3 generate pressure to the end face of motor shaft 1 always, under motor shaft is static, friction sleeve with
The pressure of sealing of motor spindle end face, stiction make motor shaft have preferable self-locking effect, avoid motor shaft from rotating, spring 4 is tightly
It is set in outside socket part 33, the setting of conical surface section 34, the spring 4 of compression generates radial pressure to conical surface section, then conical surface section
34, the inner wall of socket part 32 generates the pressure to motor shaft, plays the role of deceleration, rotation stop to motor shaft, at the end of motor shaft
Face, outer peripheral surface all have deceleration, rotation stop effect, and motor shaft has preferable self-lock force, and in the case of motor no power, motor shaft is protected
It holds static state not rotate, since friction sleeve is always with sealing of motor spindle end face, periphery face contact, there is deceleration, rotation stop to motor shaft always
Damping therefore when decelerating through motor, eliminate the inertia rotation phenomenon of motor shaft, slow down, brake, the effect of rotation stop it is good,
Setting compares existing slowing-down structure, mechanism the space occupied is small, and motor volume is small, convenient for making in back end cover for motor end
With in addition, this deceleration mechanism is suitable for the deceleration of all Axle Parts, rotation stop, such as worm screw, drive rod, in order to mitigate friction
The abrasion of set 3, socket part 32, extends the service life of friction sleeve 3, socket part 32, and the wall surface at socket part 32 offers multiple tracks
Along the oil storage tank 35 of motor shaft axial direction, circumferential direction of the multiple tracks oil storage tank 35 along socket part 32 is uniformly distributed, and oil storage tank 35 can be provided with
Inner wall at socket part 32 can also be through to outside wall surface by inner wall, and lubrication oil rouge, lubricant grease exist in oil storage tank 35
When motor shaft rotates, enters at socket part 32,3 abutted surface of friction sleeve, play the role of slowing down friction sleeve 3, socket part 32, prolong
Long friction sleeve, socket part service life.
Embodiment 2: referring to Fig.1, Fig. 4, a kind of motor shaft deceleration mechanism, including motor shaft 1, back end cover for motor 2, motor shaft
1 end is equipped with the friction sleeve 3 contacted with 1 end face of motor shaft, and friction sleeve 3 is made using high molecular abrasion-proof material, rubs
The end of the corresponding motor shaft 1 of back end cover for motor 2 is arranged in set 3, and friction sleeve 3 is equipped with close to the end face of back end cover for motor 2 to electricity
The "-" type positioning protrusion 31 that machine rear end cap 2 protrudes, 2 corresponding position of back end cover for motor are equipped with cooperation positioning protrusion 31 and and convex
The identical locating slot 21 of 31 structures is played, positioning protrusion 31 is caught in locating slot 21, realizes that back end cover for motor 2 determines friction sleeve 3
Position avoids friction sleeve 3 from rotating, and makes fixed friction sleeve 3 and motor shaft end face contact place of production frictional force in rotation, plays and subtract
Speed or the effect for preventing motor shaft rotation, friction sleeve 3, which is equipped with close to 1 side of motor shaft to motor shaft outer peripheral surface, to be extended and is arranged
Socket part 32 outside 1 end outer peripheral surface of motor shaft, socket part 32 and friction sleeve 3 are integrally formed, and are set in friction sleeve 3
The sleeve structure of motor shaft ends improves the goodness of fit of friction sleeve and motor between centers, reinforces bonding strength, guarantees to motor shaft
Decelerating effect, the outside of socket part 32 are arranged the spring 4 for making friction sleeve 3 keep fitting to contact with sealing of motor spindle end face always, socket
Portion 32 is equipped with the protrusion 33 along motor shaft radial direction far from the end of back end cover for motor, and the setting of protrusion 33 improves friction sleeve entirety
Structural strength extends the service life of friction sleeve, improves service performance, and the outer peripheral surface of socket part 32 is the conical surface, socket part 32 compared with
Big end 3 connects with protrusion, and spring 4 is set in the outside of socket part 32, and the outer diameter of spring 4 is less than socket part maximum outer diameter, big
One end of the outer diameter at the minimum of socket part, spring 4 contradicts in the somewhere of 32 outer peripheral surface of socket part, and the other end of spring 4 is resisted against
Back end cover for motor inner wall corresponding position, spring 4 are in compressive state, and the elastic force of spring 4 makes friction sleeve 3 always to motor shaft
1 end face generates pressure, under motor shaft is static, the pressure of friction sleeve and sealing of motor spindle end face, stiction make motor shaft have compared with
Good self-locking effect, avoids motor shaft from rotating, and spring 4 is tightly set in outside socket part 33, and the spring 4 of compression generates socket part
Radial pressure then makes the inner wall of socket part 32 generate the pressure to motor shaft, plays the role of deceleration, rotation stop to motor shaft,
Deceleration, rotation stop effect are all had in the end face of motor shaft, outer peripheral surface, motor shaft has preferable self-lock force, motor no power feelings
Under condition, motor shaft keep static state does not rotate, due to friction sleeve always with sealing of motor spindle end face, periphery face contact, always to motor shaft
With slow down, therefore the damping of rotation stop when decelerating through motor, eliminates the inertia rotation phenomenon of motor shaft, slow down, brake,
The effect of rotation stop is good, and setting compares existing slowing-down structure, mechanism the space occupied is small, motor in back end cover for motor end
It is small in size, it is easy to use, in addition, this deceleration mechanism is suitable for the deceleration of all Axle Parts, rotation stop, such as worm screw, drive rod,
In order to mitigate the abrasion of friction sleeve 3, socket part 32, extend the service life of friction sleeve 3, socket part 32, the wall at socket part 32
Face offers multiple tracks along the oil storage tank 35 of motor shaft axial direction, and oil storage tank 35 can be provided with the inner wall at socket part 32, can also be by
Inner wall is through to outside wall surface, lubrication oil rouge in oil storage tank 35, and lubricant grease is entered and is socketed when motor shaft rotates
At portion 32,3 abutted surface of friction sleeve, play the role of slowing down friction sleeve 3, socket part 32, extends the use longevity of friction sleeve, socket part
Life.
Embodiment 3: referring to Fig.1, a kind of motor shaft deceleration mechanism, including motor shaft 1, back end cover for motor 2,1 end of motor shaft
The friction sleeve 3 contacted with 1 end face of motor shaft is equipped at portion, friction sleeve 3 is made using high molecular abrasion-proof material, friction sleeve 3
The end of the corresponding motor shaft 1 of back end cover for motor 2 is set, and friction sleeve 3 is equipped with close to the end face of back end cover for motor 2 to after motor
End cap 2 protrude "-" type positioning protrusion 31,2 corresponding position of back end cover for motor be equipped with cooperation positioning protrusion 31 and with positioning protrusion 31
The identical locating slot 21 of structure, positioning protrusion 31 are caught in locating slot 21, are realized positioning of the back end cover for motor 2 to friction sleeve 3, are kept away
Exempt from the rotation of friction sleeve 3, make fixed friction sleeve 3 and motor shaft end face contact place of production frictional force in rotation, play deceleration or
Person prevents the effect of motor shaft rotation, and friction sleeve 3 is equipped with close to 1 side of motor shaft to be extended to motor shaft outer peripheral surface and be set in electricity
Socket part 32 outside 1 end outer peripheral surface of arbor, socket part 32 and friction sleeve 3 are integrally formed, and friction sleeve 3 is made to be set in motor
The sleeve structure in shaft end portion improves the goodness of fit of friction sleeve and motor between centers, reinforces bonding strength, guarantees the deceleration to motor shaft
Effect, the outside of socket part 32 are arranged the spring 4 for making friction sleeve 3 keep fitting to contact with sealing of motor spindle end face always, socket part 32
End far from back end cover for motor is equipped with the protrusion 33 along motor shaft radial direction, and the setting of protrusion 33 improves the structure of friction sleeve entirety
Intensity extends the service life of friction sleeve, improves service performance, and referring to Fig. 5, the outer peripheral surface of friction sleeve 3 is taper, and 4 sets of spring
Be located on the outer peripheral surface of friction sleeve 3, one end of spring 4 contradicts in the somewhere of 3 outer peripheral surface of friction sleeve, the other end of spring 4 against
In back end cover for motor inner wall corresponding position, spring 4 is in compressive state, and the elastic force of spring 4 makes friction sleeve 3 always to motor
The end face of axis 1 generates pressure, and under motor shaft is static, the pressure of friction sleeve and sealing of motor spindle end face, stiction have motor shaft
Preferable self-locking effect, avoids motor shaft from rotating, and the internal diameter of socket part 32 is less than the inner wall of motor shaft outer diameter or socket part 32
To the conical surface, the inner wall of socket part 32 generates pressure to motor shaft outer peripheral surface, be set in socket part can tightly on motor shaft, protects
Friction sleeve is demonstrate,proved to the contact effect of sealing of motor spindle end face, the inner wall of socket part 32 generates the pressure to motor shaft, plays to motor shaft
Slow down, the effect of rotation stop, all has deceleration, rotation stop effect in the end face of motor shaft, outer peripheral surface.
Embodiment 4: referring to Fig.1, a kind of motor shaft deceleration mechanism, including motor shaft 1, back end cover for motor 2,1 end of motor shaft
The friction sleeve 3 contacted with 1 end face of motor shaft is equipped at portion, friction sleeve 3 is made using high molecular abrasion-proof material, friction sleeve 3
The end of the corresponding motor shaft 1 of back end cover for motor 2 is set, and friction sleeve 3 is equipped with close to the end face of back end cover for motor 2 to after motor
End cap 2 protrude cross positioning protrusion 31,2 corresponding position of back end cover for motor be equipped with cooperation positioning protrusion 31 and with positioning protrusion 31
The identical locating slot 21 of structure, positioning protrusion 31 are caught in locating slot 21, are realized positioning of the back end cover for motor 2 to friction sleeve 3, are kept away
Exempt from the rotation of friction sleeve 3, make fixed friction sleeve 3 and motor shaft end face contact place of production frictional force in rotation, play deceleration or
Person prevents the effect of motor shaft rotation, and friction sleeve 3 is equipped with close to 1 side of motor shaft to be extended to motor shaft outer peripheral surface and be set in electricity
Socket part 32 outside 1 end outer peripheral surface of arbor, socket part 32 and friction sleeve 3 are integrally formed, and friction sleeve 3 is made to be set in motor
The sleeve structure in shaft end portion improves the goodness of fit of friction sleeve and motor between centers, reinforces bonding strength, guarantees the deceleration to motor shaft
Effect is equipped with the elastic slice 5 of butterfly or arc referring to Fig. 6 between friction sleeve 3 and back end cover for motor 2, elastic slice 5 is fixed on friction sleeve
Or on back end cover for motor inner wall, elastic slice 5 is in compressive state, and the elastic force of elastic slice 5 makes friction sleeve tightly be attached to motor shaft 1
On end face.
Embodiment 5: the present embodiment the difference from embodiment 1 is that, referring to Fig. 7, friction sleeve 3 connects with 1 end face of motor shaft
Face is the conical surface to 3 side indent of friction sleeve, and 1 end face structure of motor shaft and 3 structure of friction sleeve are coincide, and taper-face contact increases
Contact area, friction eceleration, the effect of stop are more preferable.
Embodiment 6: the present embodiment the difference from embodiment 1 is that, referring to Fig. 8, friction sleeve 3 connects with 1 end face of motor shaft
Face is to motor shaft side convex conical surface, and conical surface front end is plane, and 1 end face structure of motor shaft and 3 structure of friction sleeve are coincide, this kind
The abutted surface of structure, increases the contact area of friction sleeve and sealing of motor spindle end face, and friction eceleration, the effect of stop are more preferable.
Embodiment 7: the present embodiment the difference from embodiment 1 is that, referring to Fig. 9, friction sleeve 3 connects with 1 end face of motor shaft
Face is equipped with multiple tracks equally distributed friction lines 36 annular in shape, and friction lines 36 can be by friction sleeve plate face concave or convex shape
At to increase the frictional force to sealing of motor spindle end face, raising makes motor shaft have better self-lock force the brake force of motor shaft.
Embodiment 8: the present embodiment and the difference of embodiment 4 be, referring to Fig.1 0, in the present embodiment, do not set on friction sleeve 3
Socket part is set, the end of motor shaft 1 is the tray type structure that outer diameter increases, the tray type structure end face outside friction sleeve 3 and motor shaft 1
Contact, the contact surface of tray type structure is big, and brake force is strong, and deceleration, stopping effect are good.
Embodiment 9: the present embodiment the difference from embodiment 1 is that: referring to Fig.1 1, back end cover for motor 2 is equipped with control and rubs
The pushing mechanism that set 3 does separate/close motor shaft ends along axial direction is wiped, pushing mechanism is after being axially disposed within motor along motor shaft
Cylinder 6 on end cap 2,6 cylinder body of cylinder are fixed on motor rear end and cover, and the output end of cylinder 6 connects friction sleeve 3, control friction
Set 3 is close to or far from sealing of motor spindle end face, when friction sleeve 3 and motor shaft end face contact, generates braking action to motor shaft, does not connect
When touching, braking action is not generated, friction sleeve, motor shaft, which all have, extends service life, reduces abrasion, and pushing mechanism may be used also
Think other mechanisms that can be realized straight reciprocating motion, such as electric pushrod, linear stepping motor.
Embodiment 10: in the present embodiment, referring to Fig.1 2, friction sleeve 3 is fixed on electricity by the bracket 22 on back end cover for motor 2
The outside of machine rear end cap 2, bracket 22 are equipped with the cavity for being embedded friction sleeve, and friction sleeve is slidably matched with cavity inner wall, motor shaft
End extends to outside back end cover for motor and is kept in contact at friction sleeve 3 and with friction sleeve 3, and spring 4, spring are equipped at bracket 22
4 one end is connected on friction sleeve, and the other end of spring is connect with back end cover for motor, and spring 4, which is in, elongates stress, spring
Elastic force cover friction sleeve tightly on sealing of motor spindle end face, cavity makes friction sleeve convenient for setting, and friction sleeve is made to keep certain
Floatability avoids excessive wear, and friction sleeve not can be rotated in the cavity, and friction sleeve can be rectangular configuration.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, it is all according to
According to any simple modification to the above embodiments in technical spirit of the invention, equivalent variations, guarantor of the invention is each fallen within
Within the scope of shield.
Claims (10)
1. a kind of motor shaft deceleration mechanism, including motor shaft, back end cover for motor, which is characterized in that at the motor shaft ends
Equipped with the friction sleeve with motor shaft end face contact, friction sleeve is connected to motor rear end and covers, and back end cover for motor is set with friction inner room
Having makes friction sleeve be attached to the elastic component on sealing of motor spindle end face.
2. a kind of motor shaft deceleration mechanism according to claim 1, which is characterized in that the friction is set on motor
Inside rear end cap at corresponding motor shaft ends, friction sleeve is equipped with the convex in insertion back end cover for motor close to back end cover for motor side
It rises, back end cover for motor corresponding position is equipped with the locating slot coincideing with positioning protrusion structure, and friction sleeve is equipped with close to the side of motor shaft
Extending and be set in the socket part of outer peripheral surface at motor shaft ends to motor shaft outer peripheral surface, socket part and friction sleeve are integrally formed,
The elastic component is the spring being set in outside flap.
3. a kind of motor shaft deceleration mechanism according to claim 2, which is characterized in that the outer peripheral surface of socket part is equipped with the conical surface
Section, conical surface section is compared with big end far from back end cover for motor side, conical surface section small end outer diameter ` consistent with socket part outer diameter, conical surface section axis
It is not more than socket part axial length to length portion, the internal diameter of the spring is not less than socket part outer diameter, is not more than conical surface section most
General goal outer diameter, one end of spring and back end cover for motor inner wall corresponding position contradict, the other end of spring extend to socket part and with set
The somewhere outer peripheral surface of socket part conical surface section contradicts.
4. a kind of motor shaft deceleration mechanism according to claim 3, which is characterized in that the setting of conical surface section is separate in socket part
Back end cover for motor side, the end at conical surface section largest outside diameter with socket part far from back end cover for motor is concordant, and socket part is far from electricity
The end of machine rear end cap is equipped with the boss to extend radially outwardly along motor shaft.
5. according to a kind of motor shaft deceleration mechanism described in claim 2,3,4, which is characterized in that open up multiple tracks edge at socket part
The oil storage tank of motor shaft axial direction, multiple tracks oil storage tank are circumferentially uniformly distributed along socket part.
6. a kind of motor shaft deceleration mechanism according to claim 2, which is characterized in that the outer peripheral surface of the friction sleeve is
The conical surface, friction sleeve small end towards back end cover for motor side, the internal diameter of the spring not less than outer diameter at friction sleeve minimum, no
Greater than friction sleeve maximum outer diameter, one end of spring and the conflict of back end cover for motor inner wall corresponding position, the other end of spring and friction
Outer peripheral surface somewhere is covered to contradict.
7. a kind of motor shaft deceleration mechanism according to claim 1, which is characterized in that the elastic component is that setting is rubbing
Wipe the dish or arc spring lamination between set and back end cover for motor.
8. a kind of motor shaft deceleration mechanism according to claim 1, which is characterized in that the motor rear end, which covers, to be equipped with
Control friction sleeve does the pushing mechanism of separate/close motor shaft ends along axial direction, and the friction sleeve is equipped with multiple tracks increase and rubs
Wipe the friction lines of power.
9. a kind of motor shaft deceleration mechanism according to claim 1, which is characterized in that the friction sleeve and motor shaft end
Face abutted surface is the conical surface, and the structure of friction sleeve and sealing of motor spindle end face is mutually coincide.
10. a kind of motor shaft deceleration mechanism according to claim 1, which is characterized in that the friction is set on electricity
Outside machine rear end cap, the bracket of support friction sleeve is equipped with outside back end cover for motor, the elastic component is to be arranged in friction sleeve, electricity
Spring between machine outer shell outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810986902.5A CN109067082B (en) | 2018-08-28 | 2018-08-28 | Motor shaft reduction gears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810986902.5A CN109067082B (en) | 2018-08-28 | 2018-08-28 | Motor shaft reduction gears |
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| Publication Number | Publication Date |
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| CN109067082A true CN109067082A (en) | 2018-12-21 |
| CN109067082B CN109067082B (en) | 2022-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810986902.5A Active CN109067082B (en) | 2018-08-28 | 2018-08-28 | Motor shaft reduction gears |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488152A (en) * | 2019-01-09 | 2019-03-19 | 广东东箭汽车科技股份有限公司 | A kind of rotary damper and a kind of electric pushrod device |
| CN112234879A (en) * | 2020-10-28 | 2021-01-15 | 浙江佳乐科仪股份有限公司 | Emergency stop device of permanent magnet synchronous motor |
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|---|---|---|---|---|
| US20120305346A1 (en) * | 2011-05-31 | 2012-12-06 | Timotion Technology Co., Ltd | Motor with braking mechansim for actuator |
| CN103982563A (en) * | 2014-05-30 | 2014-08-13 | 武汉新威奇科技有限公司 | Friction coupling for electric screw press |
| CN105207404A (en) * | 2015-10-16 | 2015-12-30 | 常州市凯迪电器有限公司 | Electric push rod |
| CN208691084U (en) * | 2018-08-28 | 2019-04-02 | 常州登丰电气有限公司 | A kind of motor shaft deceleration mechanism |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488152A (en) * | 2019-01-09 | 2019-03-19 | 广东东箭汽车科技股份有限公司 | A kind of rotary damper and a kind of electric pushrod device |
| CN109488152B (en) * | 2019-01-09 | 2024-02-13 | 广东东箭汽车科技股份有限公司 | Rotary damper and electric putter ware |
| CN112234879A (en) * | 2020-10-28 | 2021-01-15 | 浙江佳乐科仪股份有限公司 | Emergency stop device of permanent magnet synchronous motor |
| CN112234879B (en) * | 2020-10-28 | 2022-04-15 | 浙江佳乐科仪股份有限公司 | Emergency stop device of permanent magnet synchronous motor |
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