CN207526961U - A kind of planetary gear mechanism - Google Patents
A kind of planetary gear mechanism Download PDFInfo
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- CN207526961U CN207526961U CN201721182509.8U CN201721182509U CN207526961U CN 207526961 U CN207526961 U CN 207526961U CN 201721182509 U CN201721182509 U CN 201721182509U CN 207526961 U CN207526961 U CN 207526961U
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- planet carrier
- substrate
- locating piece
- planetary gear
- shaft
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Abstract
The utility model provides a kind of planetary gear mechanism, for being engaged with actuating unit, to change the rotating speed of actuating unit and output, including first planet carrier, the second planet carrier and planetary gear set;The planetary gear set includes shaft and gear;The shaft includes axle portion and is set to the first fixed part and the second fixed part of axle portion opposite end;The gear is rotatably assorted with the axle portion;First fixed part is connect with the first planet carrier, and second fixed part is connect with second planet carrier, in a first direction with the shaft is positioned in second direction;The first planet carrier and the second planet carrier positioning fastening, clamp the shaft, and the shaft is positioned on third direction jointly;The first direction and second direction are mutually perpendicular to, and the third direction is perpendicular to first direction and second direction.
Description
【Technical field】
The utility model is related to a kind of gear drive apparatus field more particularly to a kind of planetary gear mechanisms.
【Background technology】
Power output member of the planetary gear mechanism as planetary gear assembly mainly passes through planetary gear point
Lotus passing power is supported, planetary gear is in addition to that will need to realize that rotation will also realize revolution, in the motion process of this high intensity
In, load distribution between planetary structure design and planetary gear is to the vibrations noise of planetary gear mechanism and makes
Can all have a great impact with the service life.
In the prior art, the planet carrier of planetary gear mechanism is an integral structure design, can not comprehensive fixed row
Star-wheel shaft so that planetary gear job insecurity, noise in transmission process is big, so as to influence planetary gear mechanism
Bulk life time.
【Utility model content】
To overcome the shortcomings of the prior art.The utility model provides a kind of planetary gear mechanism.
The technical solution that the utility model solves technical problem is to provide a kind of planetary gear mechanism, is used for and power
Transmission device engages, to change the rotating speed of actuating unit and output, including first planet carrier, the second planet carrier and planet tooth
Wheel assembly;The planetary gear set includes shaft and gear;The shaft includes axle portion and is set to axle portion opposite end
First fixed part and the second fixed part;The gear is rotatably assorted with the axle portion;First fixed part and the first row
Carrier connects, and second fixed part connect with second planet carrier, in a first direction with institute is positioned in second direction
State shaft;The first planet carrier and the second planet carrier positioning fastening, clamp the shaft, and on third direction jointly
Position the shaft;The first direction and second direction are mutually perpendicular to, and the third direction is perpendicular to first direction and second
Direction.
Preferably, the first planet carrier includes first substrate, and the first mounting hole is provided on the first substrate;It is described
First fixed part shape with described first installation hole shape be adapted, and with the first mounting hole multi-surface contact, in first party
To with described shaft one end is positioned in second direction;Second planet carrier includes second substrate, is set on the second substrate
There is the second mounting hole;The second fixed part shape with described second installation hole shape be adapted, and with second mounting hole
Multi-surface contact positions the shaft opposite other end in the first direction and a second direction;First mounting hole and/or described second
Mounting hole is polygonized structure.
Preferably, the first installation hole number is three, and the first substrate, and first peace are set in gore
It fills hole and runs through the first substrate;Second mounting hole runs through the second substrate, and described in second mounting hole correspondence
First position of mounting hole is set;The first substrate is provided with output shaft on the surface far from the second substrate;Described second
A through-hole is provided through at substrate center position, actuating unit is engaged by the through-hole with the gear, band moving teeth
Wheel rotation, the output shaft to be driven to rotate.
Preferably, the first planet carrier further includes positioning plate, and the positioning plate is set to the edge of the first substrate;
Second planet carrier further includes locating piece, and the locating piece corresponds to the edge that the positioning plate is set to the second substrate;
When the first planet carrier and second planet carrier are interlocked, the positioning plate and the locating piece are contacted and are positioned.
Preferably, the first planet carrier further includes the first locating part, and first locating part is set to first base
Plate is close to the gear side;Second planet carrier includes the second locating part, and second locating part is set to described second
Substrate is close to the first planet carrier side;First locating part and second locating part are adapted, and form limiting and match
It closes.
Preferably, the first locating piece is provided on the positioning plate, first locating piece includes the first positioning surface, first
Confined planes and the second confined planes;First positioning surface is parallel with horizontal plane;First confined planes and the second confined planes are mutually perpendicular to simultaneously
It is perpendicular with the first positioning surface;The locating piece is provided with locating slot, and the locating slot corresponds to the first locating piece setting, and
And the second locating piece is provided in locating slot, second locating piece includes the second positioning surface;In locating piece and positioning plate shape
During into location fit, first positioning surface and second positioning surface are in contact, first confined planes and second limit
Plane is in contact with the inner wall of locating slot.
Preferably, first locating piece further includes the first guide surface, and first guide surface mutually hangs down with the first confined planes
Directly, and horizontal plane is set in angle;Second locating piece further includes the second guide surface, second guide surface horizontal by
Angle is set.
Preferably, the first substrate corresponds to and removal hole is provided on the position of the first locating piece, and removal hole is through described
First substrate.
Preferably, first locating piece at least two, and be set on positioning plate different height position.
Preferably, the positioning plate is three, and in angular distribution in first substrate edge, locating piece corresponds to positioning plate and sets
It puts.
【Description of the drawings】
Figure 1A is a kind of dimensional structure diagram of planetary gear mechanism provided by the utility model.
Figure 1B is a kind of configuration schematic diagram of planetary gear mechanism provided by the utility model.
Fig. 2A is that a kind of the first viewing angle constructions of first planet carrier of planetary gear mechanism provided by the utility model show
It is intended to.
Fig. 2 B are that a kind of the second viewing angle constructions of first planet carrier of planetary gear mechanism provided by the utility model show
It is intended to.
Fig. 2 C are that a kind of first planet carrier third viewing angle constructions of planetary gear mechanism provided by the utility model show
It is intended to.
Fig. 2 D are amplification structure schematic diagrames of the Fig. 2A at A.
Fig. 2 E are a kind of distressed structure schematic diagrames of first planet carrier.
Fig. 3 A are that a kind of second the first viewing angle constructions of planet carrier of planetary gear mechanism provided by the utility model show
It is intended to.
Fig. 3 B are that a kind of second the second viewing angle constructions of planet carrier of planetary gear mechanism provided by the utility model show
It is intended to.
Fig. 3 C are that a kind of the second planet carrier third viewing angle constructions of planetary gear mechanism provided by the utility model show
It is intended to.
Fig. 3 D are amplification structure schematic diagrames of Fig. 3 A at B.
Fig. 3 E are first planet carrier and the matched part section structure schematic diagram of the second planet carrier.
Fig. 4 A are a kind of pivot structure schematic diagrames of planetary gear mechanism provided by the utility model.
Fig. 4 B are a kind of gear structure schematic diagrames of planetary gear mechanism provided by the utility model.
Fig. 4 C are structure diagrams of Fig. 4 B at C.
Fig. 4 D are the structural scheme of mechanism that gear assembly is installed on the second planet carrier.
【Specific embodiment】
In order to make the purpose of this utility model, technical solution and advantage are more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention is further described in detail.It should be appreciated that specific embodiment described herein is only used to solve
The utility model is released, is not used to limit the utility model.
A-1B is please referred to Fig.1, the utility model provides a kind of planetary gear mechanism 10, including first planet carrier
20,30 and second planet carrier 40 of planetary gear set.Planetary gear set 30 is 3, and the first row is uniformly arranged in triangle
20 and second planet carrier 40 of carrier, and part is exposed.20 and second planet carrier of first planet carrier, 40 positioning fastening is revolved with synchronous
Turn, and can realize be detachably connected under external force, convenient for the replacement of planetary gear set 30.
Wherein 20 and second planet carrier 40 of first planet carrier is selected as plastic material and is made, i.e. first planet carrier 20 and
Two planet carriers 40 are plastic cement planet carrier, so that 20 and second planet carrier 40 of first planet carrier has enough toughness, simultaneously
Also allow for realizing the lightweight of star gear drive 10.
Specifically, each planetary gear set 30 includes shaft 301 and gear 303, and middle gear 303 is plastic material
It is made, i.e., gear 303 is plastic cement gear, to mitigate the weight of gear 303 so that gear 303 reduces centripetal force when rotated
To reduce the friction dynamics between gear and shaft 301, extend the service life of gear 303, further, shaft 301 is modeling
Glue shaft.
Shaft 301 is detachably set between 20 and second planet carrier 40 of first planet carrier, and gear 303 is sheathed on shaft
301, and part is exposed, it under external force can be with shaft 301 for axle center rotation.First planet carrier 20 is far from the second planet carrier
Output shaft 50 is provided on 40 face, for power output.Through-hole 401 is offered among second planet carrier 40, in through-hole 401
On the same line, actuating unit (not shown) passes through through-hole 401 and multiple planetary gears in the axle center of the heart and output shaft 50
The gear 303 of component 30 engages, and band moving gear 303 is with shaft 301 for axle center rotation.Meanwhile 303 exposed parts of gear with it is external
Gear ring (not shown) engages so that gear 303 can be revolved round the sun in the rotation with output shaft 50 for axle center, so as to drive first
Planet carrier 20 with shaft 50 be axle center revolve round the sun so that the output speed of actuating unit after the multiple engagement of gear by
Step changes, and is exported through output shaft 50, and then obtain required rotating speed from output shaft 50.
Fig. 2A -2D are please referred to, specifically, first planet carrier 20 includes first substrate 201, positioning plate 203 and first limits
Position part 205.First substrate 201 includes the upper surface 2011 being oppositely arranged and lower surface 2013, output shaft 50 are set to upper surface
2011 center position, so that during the drive revolution of first substrate 201 of gear assembly 30, output shaft 50, which can be exported steadily, to be turned
Speed.First mounting hole 2015 on first substrate 201 is set, positions gear assembly 30 for installing, the first mounting hole 2015 passes through
It wears first substrate 201 to set, to reduce the contact area with first substrate 201, so as to reduce the institute when rotated of gear assembly 30
The vibrations brought, noise and abrasion caused by also reducing vibrations.First mounting hole 2015 is multiple, preferably 3, and with output
It is in angular distribution (as shown in Figure 2 C) centered on axis 50 so that be installed on the load of the gear assembly 30 on the first mounting hole 2015
Distribution is more reasonable.First mounting hole 2015 is polygon-shaped structures, preferably waist type shape and structure, i.e. the first mounting hole
2015 be waist-shaped hole, and is positioned using the waist type both ends arc section, and two waist straight sections carry out limiting rotation stop, so that in tooth
Waist-shaped hole both ends are in stress side when wheel assembly 30 rotates.Waist-shaped hole has positioning accuracy high, and force dispersion reduces vibrations and transmits,
Noise and abrasion are reduced, waist-shaped hole both ends, which are in stress side, can improve the positioning accuracy and intensity improved to gear assembly 30, together
When, waist-shaped hole is through the contact area designed to be further reduced gear assembly 30 and first substrate 201, so as to reduce gear set
The caused vibrations when rotated of part 30 reduce noise and abrasion caused by vibrations, while the first mounting hole 2015 can be with turning
One end Multi-contact of axis 301, so that being accurately positioned on first direction and second direction is realized in one end of shaft 301,
First direction and second direction are mutually perpendicular to.
First locating part 205 is a column structure, is set to the lower surface 2013 of first substrate 201, for the second row
Carrier 40 cooperatively forms the limiting in X-direction and Y direction, prevents 20 and second planet carrier 40 of first planet carrier from following
There is displacement when revolving round the sun in X-direction or Y direction in gear assembly 30, influences gear assembly 30 and actuating unit
Fastness is engaged, gear assembly 30 is caused to wear, influences the service life of epicyclic transmission mechanism 10.Preferably, the first locating part
205 be three, in angular distribution in lower surface 2013, is coordinated with forming triangle limiting with the second planet carrier 40 so that the first row
Limit effect of 20 and second planet carrier 40 of carrier in X-direction and Y direction is more excellent, and structural integrity is stronger.
Positioning plate 203 is set to 201 edge of first substrate, for realizing firm position cooperation with the second planet carrier 40.It is fixed
Position 203 arc-shaped laminated structure of plate, has certain elasticity, elastic deformation can occur under external force, with second
Planet carrier 40 detaches, and realizes being detachably connected for 20 and second planet carrier 40 of first planet carrier.Preferably, positioning plate 203 is three
It is a, in angular distribution in 201 edge of first substrate so that 40 connectivity robustness of the second planet carrier is stronger, and effect is more excellent.
The first locating piece 2031 is provided on 203 and second planet carrier of positioning plate, 40 matched face simultaneously, so that the
One planet carrier 20 is realized with the second planet carrier 40 on Z axis and is positioned, and is securely connected.First locating piece 2031 includes the first positioning surface
2032nd, the first confined planes 2034, the second confined planes 2036 and the first guide surface 2038.First confined planes 2034 and the second limiting
Face 2036, the first positioning surface 2032 are arranged in a mutually vertical manner, for contacted with 40 face of the second planet carrier realize first planet carrier 20 and
Second planet carrier 40 is in the limiting of X-direction.Second confined planes 2036 and the first positioning surface 2032, the first confined planes 2034 are homogeneous
It is mutually vertical, for contacting the limiting for realizing 20 and second planet carrier 40 of first planet carrier in Y direction with 40 face of the second planet carrier.
First positioning surface 2032 is mutually parallel with the horizontal plane where first substrate 201, for contacting realization with 40 face of the second planet carrier
20 and second planet carrier 40 of first planet carrier passes through X-direction, Y direction and Z-direction etc. three in the limiting of Z-direction
The limiting in a direction coordinates so as to fulfill the final firm position of 20 and second planet carrier 40 of first planet carrier.It is appreciated that X-axis
Direction, Y direction and Z-direction are it can be appreciated that first direction, second direction and third direction.First guide surface
2038 are located at 2032 opposite side of the first positioning surface and perpendicular with the first confined planes 2034, are set horizontal by angle α,
Angle α is less than 90 °, has guiding role, and location fit is realized convenient for the first locating piece 2031 and the second planet carrier 40.It is preferred that
Ground is provided at least two first locating pieces 2031 on each positioning plate 203, and first locating piece 2031 fails wherein
When, another first locating piece 2031 also has locating effect.Multiple first locating pieces 2031 is uniformly distributed simultaneously so that the
The stress of one planet carrier 20 and the second planet carrier 40 when cooperation in all directions is more balanced, so as to ensure gear assembly
Gear engagement is more preferable during 30 revolution, and fastness is stronger.
The removal hole that first substrate 201 is provided through on the position of the first locating piece 2031 is corresponded in first substrate 201
207, user accurately exerts a force to the first locating piece 2031 hard object by removal hole 207 so that the first locating piece 2031 and
Two planet carriers 40 are easier to detach, so as to fulfill the separation of 20 and second planet carrier 40 of first planet carrier, and then convenient for vulnerable part
The replacement of gear assembly 30.
The positioning stress point between 20 and second planet carrier 40 of first planet carrier can accurately be applied by removal hole 207
Power so that 20 and second planet carrier 40 of first planet carrier is easily isolated, without using brute-force dismantle, prevent first planet carrier 20,
Second planet carrier 40 and gear assembly 30 are impaired.
Fig. 2 E are please referred to, as a deformation of the first locating piece 2031 setting, when the first locating piece 2031 is at least two
When a or more, the first locating piece 2031 can be set on the Z-direction different height position of positioning plate 203, so that
20 and second planet carrier 40 of first planet carrier has multiple positioning supporting points in the Z-axis direction so that first planet carrier 20 and the
The two securely connections of planet carrier 40, so as to ensure gear assembly 30 and actuating unit Meshing stability, it is ensured that output speed is put down
Surely.
Fig. 3 A-3D are please referred to, the second planet carrier 40 includes second substrate 402,403 and second locating part 405 of locating piece.
Through-hole 401 is provided with corresponding with the first mounting hole 2015 on second substrate 402 through the center of second substrate 402
The second mounting hole 4021, for the first mounting hole 2015 coordinate installation positioning gear assembly 30.Second mounting hole 4021 passes through
It wears second substrate 402 to set, to reduce the contact area with second substrate 402, so as to reduce the institute when rotated of gear assembly 30
The vibrations brought, noise and abrasion caused by also reducing vibrations.Second mounting hole 4021 is polygon-shaped structures, preferably waist
Type structure, with 301 multi-surface contact of shaft so that the other end of shaft 301 realize it is accurate in first direction and second direction
Positioning, the first mounting hole 2015 of cooperation realize the positioning of 301 opposite end of shaft.
It is appreciated that in order to realize the positioning in the first direction and a second direction of countershaft 301 or the first peace
Dress 2015 or second mounting hole 4021 of hole is polygonized structure, preferably waist type structure.
Second locating part 405 is set on second substrate 402 and 20 matched face of first planet carrier, shape and first
Locating part 205 is adapted, and 20 and second planet carrier 40 of first planet carrier is completed in X-direction to coordinate with the first locating part 205
With the limiting in Y direction, prevent 20 and second planet carrier 40 of first planet carrier from relative rotation occurs.If the first locating part 205
For column structure, then the second locating part 405 is then the channel-shaped being adapted, if the first locating part 205 is groove-like structure, the second limit
Position part 405 is then the column being adapted.
Locating piece 403 is set to the edge of second substrate 402, is adapted and is correspondingly arranged with positioning plate 203, in outer masterpiece
Structure engaging can be formed under, so that 20 and second planet carrier of first planet carrier ultimately forms location fit, is securely connected, from
And will not be deviated in 30 rotation of gear assembly or revolution, ensure the effect that engages with other gears, make an uproar so as to reduce engagement
Sound, engagement is steady, extends 30 service life of gear assembly.
Specifically, locating slot 4031,4031 edge of locating slot are provided on locating piece 403 and 203 matched face of positioning plate
The side of second planet carrier, 40 thickness is set up, and width is slightly larger than the width of the first locating piece 2031, in first planet carrier 20
When being interlocked with the second planet carrier 40, first the first locating piece 2031 is placed in locating slot 4031, locating slot 4031 it is interior
Wall can contact the first confined planes 2034 of the first locating piece 2031 and the second confined planes 2036, so as to prevent the first locating piece
2031 shift in X-direction and Y direction.
Be provided with the second locating piece 4033 in locating slot 4031, the second locating piece 4033 include the second guide surface 4032 with
And second positioning surface 4034.Second positioning surface 4034 is fixed perpendicular with 4031 inner wall of position slot, in first planet carrier 20 and the
When two planet carriers 40 are interlocked, being contacted with the first locating piece 2031 prevents the displacement in the Z-axis direction of first planet carrier 20, realizes the
The final positioning of one planet carrier 20 and the second planet carrier 40.Second guide surface 4032 is set horizontal by angle, is had and is led
To effect, when 20 and second planet carrier 40 of first planet carrier is interlocked, the first locating piece 2031 passes through the second guide surface 4032
Guiding role, slip into locating slot 4031 and contacted with the second positioning surface 4034 realization positioning.
Fig. 3 E are please referred to, after 20 and second planet carrier of first planet carrier, 40 location fit, first on positioning plate 203 is fixed
Position part 2031 is slipped into locating slot 4031, and locating slot 4031 gives the first locating piece 2031 to limit in X-direction and Y direction
Effect, prevent 20 and second planet carrier 40 of first planet carrier gear assembly 30 revolve round the sun shift, so as to cause gear assembly 30
Shake abrasion.
Second locating piece 4033 is contacted with the first locating piece 2031, prevents first planet carrier 20 and second in the Z-axis direction
Relative displacement occurs for planet carrier 40, so as to ensure that 20 and second planet carrier 40 of first planet carrier imitates the fixed of gear assembly 30
Fruit.
Meanwhile correspond to the first locating piece 4033 in first substrate 201 and be provided with removal hole 207, it can be with by removal hole 207
It accurately exerting a force to positioning stress point so that 20 and second planet carrier 40 of first planet carrier is easily isolated, and is dismantled without using brute-force,
Prevent first planet carrier 20, the second planet carrier 40 and gear assembly 30 impaired.
Further, positioning plate 203 is three, is distributed in the edge of first substrate 201, locating piece 403 and positioning plate 203 are right
It should set, to be interlocked with positioning plate 203, form triangulation location structure so that 20 and second planet carrier of first planet carrier, 40 jail
Fixed bit connects.
Fig. 4 A are please referred to, shaft 301 includes axle portion 3013 and is set to the first fixed part of 3011 opposite sides of axle portion
3013 and second fixed part 3015.First fixed part, 3013 shape matches with the first mounting hole 2015, the second fixed part
3015 match with the second mounting hole 4021.301 outer diameter of shaft is more than the outer of the first mounting hole 2015 and the second mounting hole 4021
Diameter so that shaft 301 by the first fixed part 3013 and the second fixed part 3015 respectively with 20 and second row of first planet carrier
Carrier 40 is fastenedly connected, and prevents shaft 301 from rotating and from the first mounting hole 2015 or the second mounting hole 4021 with fixed rotating shaft 301
It slips.Axle portion 3011 is cylinder, and gear 303 is socketed on axle portion 3011, is rotatably assorted with shaft 301, under external force with
Shaft 301 is axle center rotation.
Fig. 4 B are please referred to, gear 303 includes gear ring 3031 and multiple double wedges 3033, and multiple 3033 uniform rings of double wedge are set on
The periphery of gear ring 3031, to be engaged with other gears or transmission mechanism.Offer what is matched with axle portion 3013 in gear ring 3031
Circular hole 3035, so that gear 303 can be with around the shaft 301 rotations.
Fig. 4 C are please referred to, double wedge 3033 includes tooth root 3032 and tooth top 3034, wherein between tooth root 3032 to tooth top 3034
Width it is descending gradually successively decrease, and 3034 part of tooth top be designed arc-shaped appearance, with when gear 303 is engaged with other gears
Reduce frictional force, be stable gear engaged transmission.
It is that full circular arc wise manner transition connects in the present embodiment, between the tooth root 3032 of adjacent tooth 3033, wholecircle arc radius
For R, the value of R is 0.4m-0.6m, preferably 0.46m.Preferably, the modulus of the gear 303 be 1, the number of teeth 20, pressure angle α
It is 20 °.By under the conditions of identical module, by being full circular arc wise manner transition connection between tooth root 3032 to increase tooth root
3032 width, while increase the arc radius R of tooth root 3032, so as to enhance the intensity of double wedge 3033, to extend gear 303
Service life.
Fig. 4 D are please referred to, gear 303 is rotatably connected with shaft 301, around the shaft 301 rotation, and three gears 303 are in triangle
It lays, the line of two neighboring gear 303 is triangular in shape, and gear 303 and three point gearing of actuating unit (not shown)
Contact so that the engagement connection between gear and actuating unit is more secured, and the rotation and revolution of gear 303 are more flat
Surely, so that the power output of planetary gear mechanism 10 is more steady, service life is more permanent.
Compared with existing design, the planetary gear mechanism that utility model is provided has the following advantages:
1st, by the way that the opposite end of shaft is located by connecting respectively with first planet carrier and the second planet carrier, so that shaft
It positions in the first direction and a second direction, relative rotation can not occur with respect to first planet carrier and/or the second planet carrier.Pass through
First planet carrier and the second planet carrier positioning fastening, clamping position shaft so that shaft can not be with respect to first on third direction
Planet carrier and/or the second planet carrier relative displacement.And first planet carrier and the second planet carrier by positioning fastening each other without
Relative displacement occurs for method, to ensure that rotating speed exports.
Further, first direction and second direction are mutually perpendicular to, third direction vertically with first direction and second direction, from
And comprehensive positioning rotating shaft allows shaft to be firmly attached to first planet carrier and the second planet carrier, so that turning with shaft
The gear of dynamic cooperation can be with even running in rotation and revolution, and reduction is shaken and noise, extends planetary gear mechanism
Bulk life time.
2nd, by positioning plate and locating piece in a first direction, the location fit of second direction and third direction so that
First planet carrier and the second planet carrier immovable fitting, so as to ensure the positioning of first planet carrier and the second planet carrier to gear assembly
Effect, can reduce shaking and noise with even running, extend planetary gear mechanism when gear is in rotation and revolution
Bulk life time.
3rd, by the way that in first locating piece at least two set on positioning plate or more, the first locating piece can be set
In on the Z-direction different height position of positioning plate, so that first planet carrier and the second planet carrier have in the Z-axis direction
Multiple positioning supporting points so that first planet carrier and the second planet carrier securely connect, so as to ensure gear assembly and power transmission
Device Meshing stability, it is ensured that output speed is steady.
4th, the removal hole of first substrate, user are provided through on the position by corresponding to the first locating piece in first substrate
Hard object accurately exerts a force to the first locating piece by removal hole so that the first locating piece is easier to detach with the second planet carrier,
So as to fulfill the separation of first planet carrier and the second planet carrier, and then convenient for the replacement of vulnerable part gear assembly.
The foregoing is merely the utility model preferred embodiments, are not intended to limit the utility model, all in this reality
With any modification made within novel principle, equivalent replacement and improvement etc. should all include the utility model.
Claims (10)
1. a kind of planetary gear mechanism, for being engaged with actuating unit, to change the rotating speed of actuating unit simultaneously
Output, it is characterised in that:Including first planet carrier, the second planet carrier and planetary gear set;The planetary gear set includes
Shaft and gear;The shaft includes axle portion and is set to the first fixed part and the second fixed part of axle portion opposite end;
The gear is rotatably assorted with the axle portion;First fixed part is connect with the first planet carrier, and described second is solid
Determine portion to connect with second planet carrier, in a first direction with the shaft is positioned in second direction;
The first planet carrier and the second planet carrier positioning fastening clamp the shaft, and fixed on third direction jointly
The position shaft;
The first direction and second direction are mutually perpendicular to, and the third direction is perpendicular to first direction and second direction.
2. planetary gear mechanism as described in claim 1, it is characterised in that:The first planet carrier includes the first base
Plate is provided with the first mounting hole on the first substrate;The first fixed part shape is mutually fitted with the described first installation hole shape
Match, and with the first mounting hole multi-surface contact, position described shaft one end in the first direction and a second direction;
Second planet carrier includes second substrate, and the second mounting hole is provided on the second substrate;Second fixed part
Shape is adapted with the described second installation hole shape, and with the second mounting hole multi-surface contact, in a first direction and second party
The shaft opposite other end is positioned upwards;
First mounting hole and/or second mounting hole are polygonized structure.
3. planetary gear mechanism as claimed in claim 2, it is characterised in that:The first installation hole number is three,
The first substrate is set on, and first mounting hole runs through the first substrate in gore;
Second mounting hole runs through the second substrate, and second mounting hole corresponds to first position of mounting hole and sets
It puts;
The first substrate is provided with output shaft on the surface far from the second substrate;
The second substrate center position is provided through a through-hole, and actuating unit passes through the through-hole and the gear
Engagement, band moving gear rotate, the output shaft to be driven to rotate.
4. planetary gear mechanism as claimed in claim 2, it is characterised in that:The first planet carrier further includes positioning
Plate, the positioning plate are set to the edge of the first substrate;
Second planet carrier further includes locating piece, and the locating piece corresponds to the side that the positioning plate is set to the second substrate
Edge;
When the first planet carrier and second planet carrier are interlocked, the positioning plate and the locating piece are contacted and are positioned.
5. planetary gear mechanism as claimed in claim 4, it is characterised in that:The first planet carrier further includes the first limit
Position part, first locating part are set to the first substrate close to the gear side;
Second planet carrier includes the second locating part, and second locating part is set to the second substrate close to described first
Planet carrier side;
First locating part and second locating part are adapted, and form limiting cooperation.
6. planetary gear mechanism as claimed in claim 4, it is characterised in that:The first positioning is provided on the positioning plate
Part, first locating piece include the first positioning surface, the first confined planes and the second confined planes;First positioning surface is put down with horizontal plane
Row;First confined planes and the second confined planes are mutually perpendicular to simultaneously perpendicular with the first positioning surface;
The locating piece is provided with locating slot, and the locating slot corresponds to the first locating piece setting, and is set in locating slot
The second locating piece is equipped with, second locating piece includes the second positioning surface;
When locating piece and positioning plate form location fit, first positioning surface and second positioning surface are in contact, described
First confined planes and second confined planes are in contact with the inner wall of locating slot.
7. planetary gear mechanism as claimed in claim 6, it is characterised in that:First locating piece further includes first and leads
To face, first guide surface and the first confined planes are perpendicular, and horizontal plane is set in angle;
Second locating piece further includes the second guide surface, and second guide surface is set horizontal by angle.
8. planetary gear mechanism as claimed in claim 6, it is characterised in that:The first substrate corresponds to the first locating piece
Position on be provided with removal hole, removal hole runs through the first substrate.
9. the planetary gear mechanism as described in claim 6-8 any one, it is characterised in that:First locating piece is extremely
It is less two, and is set on positioning plate different height position.
10. planetary gear mechanism as claimed in claim 9, it is characterised in that:The positioning plate is three, in triangle point
First substrate edge is distributed in, locating piece corresponds to positioning plate setting.
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CN201721182509.8U CN207526961U (en) | 2017-09-13 | 2017-09-13 | A kind of planetary gear mechanism |
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CN201721182509.8U CN207526961U (en) | 2017-09-13 | 2017-09-13 | A kind of planetary gear mechanism |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN109488734A (en) * | 2017-09-13 | 2019-03-19 | 三多乐精密注塑(深圳)有限公司 | A kind of planetary gear transmission mechanism |
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2017
- 2017-09-13 CN CN201721182509.8U patent/CN207526961U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109488734A (en) * | 2017-09-13 | 2019-03-19 | 三多乐精密注塑(深圳)有限公司 | A kind of planetary gear transmission mechanism |
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Address after: 518109 Tenth Industrial Zone of Pinus tabulaeformis Village, Longhua Town, Shenzhen City, Guangdong Province Patentee after: Shenzhen Sanduolle Intelligent Drive Co., Ltd. Address before: 518109 Tenth Industrial Zone of Pinus tabulaeformis Village, Longhua Town, Shenzhen City, Guangdong Province Patentee before: San-Tohno Molding (Shenzhen) Co., Ltd. |
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