CN209448583U - Planet-gear speed reducing motor - Google Patents
Planet-gear speed reducing motor Download PDFInfo
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- CN209448583U CN209448583U CN201821896990.1U CN201821896990U CN209448583U CN 209448583 U CN209448583 U CN 209448583U CN 201821896990 U CN201821896990 U CN 201821896990U CN 209448583 U CN209448583 U CN 209448583U
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Abstract
The utility model is suitable for decelerating motor technical field of structures, disclose planet-gear speed reducing motor, it includes motor and the planetary reduction gear for being installed on motor one end, planetary reduction gear includes shell, planetary gear speed reducing mechanism and one end in shell stretch in the output shaft that outside shell and the other end is arranged in shell and connect with planetary gear speed reducing mechanism one end, there is motor one end to be arranged in the drive shaft connecting in shell and with the planetary gear speed reducing mechanism other end, the transmission ratio i of planetary gear speed reducing mechanism meets relationship: 40≤i≤360, the ratio k of the outer diameter of the axial length and shell of shell meets relationship: 0 < k < 1.Planet-gear speed reducing motor provided by the utility model, had not only met the design requirement of planet-gear speed reducing motor large transmission ratio, but also reduced the draw ratio of planetary reduction gear.
Description
Technical field
The utility model relates to decelerating motor technical field of structures more particularly to a kind of planet-gear speed reducing motors.
Background technique
Minitype speed reducing motor is the conglomerate of micromotor and retarder, and micromotor is specially that volume, capacity are smaller, defeated
Lower-powered motor out.Currently, popular minitype speed reducing motor is broadly divided into fixed axis gear formula and planetary gear type on the market
Two types, wherein the minitype speed reducing motor of planetary gear type is obtained due to having the characteristics that compact-sized, transmission ratio is big
It is more and more widely used.
In the minitype speed reducing motor of existing planetary gear type, retarder there are mainly two types of structural design scheme: 1)
A kind of scheme is: in addition to primary planet reduction assemblies use plastic material manufacture to reduce noise other than, remaining planet at different levels subtracts
Fast component all uses metal material to manufacture, and such retarder integrally can be heavier tediously long；2) second scheme is: institute
There are planetary reduction gear components at different levels all plastic material to be used to manufacture, there can be intensity deficiency in a particular application and the service life is short
The problem of, and entire retarder also can be lengthy.
The planetary reduction gear designed using above two existing scheme, when transmission ratio is designed into more than or equal to 40,
The draw ratio (ratio of axial length and outer diameter) of planetary reduction gear can all be greater than 1, be unable to satisfy and require draw ratio is lesser to answer
With the installation of occasion, it is unfavorable for the Miniaturization Design of its application product.
Utility model content
The purpose of this utility model is to provide a kind of planet-gear speed reducing motors, aim to solve the problem that existing planetary gear reduction
The tediously long technical problem of speed motor figure.
In order to achieve the above objectives, scheme provided by the utility model is: planet-gear speed reducing motor, including motor and installation
Planetary reduction gear in described motor one end, the planetary reduction gear include shell, the planetary reducer in the shell
Structure and one end stretch in that the shell is outer and the other end is arranged in and connect in the shell and with described planetary gear speed reducing mechanism one end
There is one end to be arranged in the driving connecting in the shell and with the planetary gear speed reducing mechanism other end for output shaft, the motor
Axis, the transmission ratio i of the planetary gear speed reducing mechanism meet relationship: 40≤i≤360, the axial length of the shell and the shell
The ratio k of outer diameter meet relationship: 0 < k < 1.
Optionally, the planetary gear speed reducing mechanism include the input terminal sun gear being installed in the drive shaft, one end with
The output end planetary set that the input terminal planetary assemblies of the input terminal sun gear transmission connection, one end are connected to the output shaft
The middle planetary component of part, transmission connection between the input terminal planetary assemblies and the output end planetary assemblies.
Optionally, the input terminal planetary assemblies include several be surrounded on input terminal sun gear periphery and with institute
State the input terminal planetary gear of input terminal sun gear engagement, the input terminal planet that one end is connect with the input terminal planetary gear
Frame and the intermediate sun gear being connect with the input terminal planet carrier；
The middle planetary component include several be surrounded on the intermediate sun gear periphery and with the intermediate sun
The intermediate planetary gear of gear engagement, the center row carrier that is connect with the intermediate planetary gear of one end and with the middle planetary
The output end sun gear of frame connection；
The output end planetary assemblies include several be surrounded on output end sun gear periphery and with the output
The output end planetary gear of end sun gear engagement and one end is connect with the output end planetary gear and the other end and the drive
The output end planet carrier of moving axis connection；
The inner sidewall of the shell is equipped with ring gear, each input terminal planetary gear, each intermediate planetary gear
It is all engaged with the ring gear with each output end planetary gear.
Optionally, the input terminal sun gear is to use metal gear made of metal or for using made of plastic cement
Plastic cement gear；
The input terminal planetary gear is using plastic cement gear made of plastic cement；
The input terminal planet carrier is using plastic cement frame body made of plastic cement；
The intermediate sun gear is using plastic cement gear made of plastic cement；
The intermediate planetary gear is using plastic cement gear made of plastic cement；
The center row carrier is using metal frame body made of metal；
The output end sun gear is using metal gear made of metal；
The output end planetary gear is using metal gear made of metal；
The output end planet carrier is using metal frame body made of metal.
Optionally, the intermediate sun gear and the input terminal planet carrier are integrally formed；And/or
The output end sun gear and the center row carrier are integrally formed.
Optionally, the input terminal planetary gear hardness is less than the hardness of the intermediate planetary gear, the input terminal
Planetary gear elasticity modulus is greater than the elasticity modulus of the intermediate planetary gear.
Optionally, the engagement height of the intermediate sun gear and the intermediate planetary gear is the output end sun tooth
1~1.2 times of wheel and the output end planetary gear engagement height；And/or
The input terminal sun gear and the input terminal planetary gear engagement height be the intermediate sun gear with
0.5~1 times of the engagement height of the intermediate planetary gear.
Optionally, the input terminal planet carrier includes that input terminal substrate and several circumferentially spaced input terminals are fixed
Position column, the input terminal positioning column and the intermediate sun gear are convexly equipped in the two sides of the input terminal substrate respectively, each described
Input terminal planetary gear is sheathed on respectively on each input terminal positioning column；
The center row carrier includes Intermediate substrate and several circumferentially spaced interfix columns, the centre
Positioning column and the output end sun gear are convexly equipped in the two sides of the Intermediate substrate, each intermediate planetary gear difference respectively
It is sheathed on each interfix column；
The output end planet carrier includes output end substrate and several circumferentially spaced input terminal positioning columns, respectively
The output end positioning column is all convexly equipped in the side of the input terminal substrate, and each output end planetary gear is sheathed on respectively
On each output end positioning column.
Optionally, 45≤i≤360；And/or 0 k≤0.95 <.
Optionally, 45≤i≤300；And/or 0.4≤k≤0.9.
The transmission ratio i of planetary gear speed reducing mechanism is arranged 40~360 planet-gear speed reducing motor provided by the utility model
Between, and ratio (draw ratio) k of the axial length of planetary reduction gear shell and the outer diameter of shell is set smaller than 1, in this way,
Not only the design requirement of planet-gear speed reducing motor large transmission ratio had been met, but also has reduced the draw ratio of planetary reduction gear, thus sharp
In the Miniaturization Design of its application product.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the stereoscopic schematic diagram of planet-gear speed reducing motor provided by the embodiment of the utility model；
Fig. 2 is the cutaway schematic diagram of A-A in Fig. 1；
Fig. 3 is the left view floor map of planet-gear speed reducing motor provided by the embodiment of the utility model；
Fig. 4 is the main view diagrammatic cross-section of planet-gear speed reducing motor provided by the embodiment of the utility model；
Fig. 5 is the decomposition diagram of planet-gear speed reducing motor provided by the embodiment of the utility model；
Fig. 6 is the decomposition diagram of planetary gear speed reducing mechanism provided by the embodiment of the utility model；
Fig. 7 is the decomposition diagram one of shell provided by the embodiment of the utility model；
Fig. 8 is the decomposition diagram two of shell provided by the embodiment of the utility model；
Fig. 9 is the decomposition diagram of output shaft provided by the embodiment of the utility model, guide sleeve and shell.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, fall within the protection scope of the utility model.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment
It is only used for explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, such as
When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.
It should also be noted that, when an element is referred to as being " fixed " or " disposed " on another element, it can be straight
Connect on the other element or may be simultaneously present centering elements.When an element is known as " connection " another element,
It, which can be, is directly connected to another element or may be simultaneously present centering elements.
In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and cannot understand
For its relative importance of indication or suggestion or implicitly indicate the quantity of indicated technical characteristic.Define as a result, " first ",
The feature of " second " can explicitly or implicitly include at least one of the features.In addition, the technical side between each embodiment
Case can be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when the combination of technical solution
Conflicting or cannot achieve when occur will be understood that the combination of this technical solution is not present, also not in the requires of the utility model
Protection scope within.
As shown in figs 1-9, planet-gear speed reducing motor provided by the embodiment of the utility model, including motor 100 and installation
Planetary reduction gear 200 in 100 one end of motor, planetary reduction gear 200 include shell 210, the planetary reduction gear in shell 210
Mechanism 220 and one end stretch in outside shell 210 and the other end is arranged in shell 210 and connect with 220 one end of planetary gear speed reducing mechanism
Output shaft 230, there is motor 100 one end to be arranged in the driving connecting in shell 210 and with 220 other end of planetary gear speed reducing mechanism
Axis 110, the transmission ratio i of planetary gear speed reducing mechanism 220 meet relationship: 40≤i≤360, the axial length L and shell 210 of shell 210
The ratio k of outer diameter D meet relationship: 0 < k < 1.I is the transmission ratio of planetary reduction gear 200, and k is the major diameter of shell 210
Than or planetary reduction gear 200 draw ratio.Motor 100 export power after the deceleration transmission of planetary gear speed reducing mechanism 220, by
Output shaft 230 is to executive component output power.Planet-gear speed reducing motor provided by the embodiment of the utility model, planetary reducer
The transmission ratio i of structure 220 is between 40~360, and the draw ratio k of planetary reduction gear 200 is less than 1, in this way, both meeting planet
The design requirement of toothed gearing electric motor large transmission ratio, and meet the installation requirements of certain applications for requiring small draw ratio.
Preferably, 45≤i≤360；And/or 0 k≤0.95 <.As a preferred embodiment of the present embodiment, 45≤i
≤360；And 0 k≤0.95 <.
It is further preferable that 45≤i≤300；And/or 0.4≤k≤0.9, in this way, may make the biography of planetary reduction gear 200
It moves than reaching splendid effect of optimization with draw ratio.
Preferably, referring to shown in Fig. 2 and Fig. 4, planetary gear speed reducing mechanism 220 includes the input terminal being installed in drive shaft 110
Input terminal planetary assemblies 222, one end and the output shaft that sun gear 221, one end and input terminal sun gear 221 are sequentially connected
The output end planetary assemblies 223 of 230 connections are sequentially connected between input terminal planetary assemblies 222 and output end planetary assemblies 223
Middle planetary component 224.Planetary gear speed reducing mechanism 220 in the present embodiment is three-level reduction gearing mechanism, wherein input terminal is too
Transmission between positive gear 221 and input terminal planetary assemblies 222 constitutes primary speed-down transmission, and input terminal planetary assemblies 222 are in
Between transmission between planetary assemblies 224 constitute double reduction transmission, middle planetary component 224 and output end planetary assemblies 223 it
Between transmission be three-level transmission.
Preferably, referring to shown in Fig. 2, Fig. 4 and Fig. 6, input terminal planetary assemblies 222 include that several are surrounded on input terminal too
Positive 221 periphery of gear and the input terminal planetary gear 2221 engaged with input terminal sun gear 221, one end and input terminal planet tooth
The input terminal planet carrier 2222 of 2221 connection of wheel and the intermediate sun gear 2223 being connect with input terminal planet carrier 2222；Center row
Star component 224 includes the center row that several are surrounded on intermediate 2223 periphery of sun gear and engage with intermediate sun gear 2223
It star gear 2241, one end and intermediate planetary gear 2241 center row carrier 2242 connected and is connect with center row carrier 2242
Output end sun gear 2243；Output end planetary assemblies 223 include that several are surrounded on 2243 periphery of output end sun gear simultaneously
With output end sun gear 2243 engage output end planetary gear 2231 and one end connect with output end planetary gear 2231 and
The output end planet carrier 2232 that the other end is connect with drive shaft 110；The inner sidewall of shell 210 is equipped with ring gear 2113, each defeated
Enter to hold planetary gear 2221, each intermediate planetary gear 2241 and each output end planetary gear 2231 all to engage with ring gear 2113.
Herein, by the inner sidewall of shell 210 be arranged for each input terminal planetary gear 2221, each intermediate planetary gear 2241
The ring gear 2113 all engaged with each output end planetary gear 2231 is conducive to improve the stable of planetary reduction gear 200 in this way
Reliability.
Preferably, input terminal sun gear 221 is to use metal gear made of metal or for using made of plastic cement
Plastic cement gear；Input terminal planetary gear 2221 is using plastic cement gear made of plastic cement；Input terminal planet carrier 2222 is using modeling
Plastic cement frame body made of glue；Intermediate sun gear 2223 is using plastic cement gear made of plastic cement；Intermediate planetary gear 2241 is
Using plastic cement gear made of plastic cement；Center row carrier 2242 is using metal frame body made of metal；Output end sun gear
2243 is using metal gears made of metal；Output end planetary gear 2231 is using metal gear made of metal；Output
Holding planet carrier 2232 is using metal frame body made of metal.Herein, pass through the material to each component in planetary gear speed reducing mechanism 220
It optimizes, so that the combined application that metal parts and plastic part are optimized, in this way, being both conducive to guarantee planetary reduction gear
The intensity and service life of 220 individual stage reduction drive mechanism of mechanism, and it is conducive to reduce the vibration of planetary reduction gear 200, noise, again
Amount and figure, so that when the transmission ratio i of planetary gear speed reducing mechanism 220 is between 40~360, it can be by planetary reduction gear 200
Draw ratio is designed into the splendid effect of optimization less than 0.9.
Preferably, intermediate sun gear 2223 is integrally formed with input terminal planet carrier 2222, intermediate sun gear 2223 with
Input terminal planet carrier 2222 is made of identical material, and eliminates intermediate sun gear 2223 and input terminal planet carrier 2222
Subsequent assembly, the stable connection of intermediate sun gear 2223 with input terminal planet carrier 2222 is improved, to be conducive to
Reduce the vibration and noise generated in 220 operational process of planetary gear speed reducing mechanism.
Preferably, output end sun gear 2243 and center row carrier 2242 are integrally formed, output end sun gear 2243
It is made with center row carrier 2242 of identical material, and eliminates output end sun gear 2243 and center row carrier 2242
Subsequent assembly, the stable connection of output end sun gear 2243 Yu center row carrier 2242 is improved, to be conducive to
Reduce the vibration and noise generated in 220 operational process of planetary gear speed reducing mechanism.
Preferably, the hardness of input terminal planetary gear 2221 is less than the hardness of intermediate planetary gear 2241, input terminal planet
The elasticity modulus of gear 2221 is greater than the elasticity modulus of intermediate planetary gear 2241.Input terminal planetary gear 2221 using hardness compared with
Small, the biggish plastic cement of elasticity modulus is made, and can be conducive to improve vibration damping, the noise reduction effect of input terminal planetary gear 2221；And it is intermediate
Using hardness, larger, the lesser plastic cement of elasticity modulus is made planetary gear 2241, can be conducive to improve intermediate planetary gear 2241
Intensity, abrasion resistant effect, to be conducive to extend the service life of intermediate planetary gear 2241.
As a preferred embodiment of the present embodiment, input terminal planetary gear 2221, intermediate planetary gear 2241 and defeated
The quantity of outlet planetary gear 2231 is all three, is of coursed, in concrete application, input terminal planetary gear 2221, middle planetary
The quantity of gear 2241 and output end planetary gear 2231 is without being limited thereto, or two or four or more.
Preferably, the engagement height of intermediate sun gear 2223 and intermediate planetary gear 2241 is output end sun gear
2243 with 1~1.2 times of the engagement height of output end planetary gear 2231, in this way, be both conducive to guarantee the reliability of transmission,
It is conducive to reduce the whole axial length of planetary reduction gear 200 again.Intermediate sun gear 2223 is nibbled with intermediate planetary gear 2241
Height is closed, the engaging portion of specially intermediate sun gear 2223 and intermediate planetary gear 2241 is axial in planetary reduction gear 200
On projection size.The engagement height of output end sun gear 2243 and output end planetary gear 2231, specially output end are too
Projection size of the engaging portion of positive gear 2243 and output end planetary gear 2231 in 200 axial direction of planetary reduction gear.
Preferably, the engagement height of input terminal sun gear 221 and input terminal planetary gear 2221 is intermediate sun gear
2223 with 0.5~1 times of the engagement height of intermediate planetary gear 2241, in this way, be not only conducive to guarantee the reliability of transmission, but also
Conducive to the whole axial length for reducing planetary reduction gear 200.Input terminal sun gear 221 is nibbled with input terminal planetary gear 2221
Height is closed, specially the engaging portion of input terminal sun gear 221 and input terminal planetary gear 2221 is in 200 axis of planetary reduction gear
Upward projection size.
Preferably, the number of teeth of input terminal sun gear 221, the number of teeth and output end sun gear of intermediate sun gear 2223
2243 number of teeth is all identical.For ease of description, the number of teeth of input terminal sun gear 221, intermediate sun gear 2223 are defined
The number of teeth and the number of teeth of output end sun gear 2243 are all z1, the number of teeth for defining ring gear 2113 is z2, then i=(z2/z1+1)3。
As a preferred embodiment of the present embodiment, the number of teeth z of ring gear 21132It is 48, input terminal sun gear 221
The number of teeth, the intermediate number of teeth of sun gear 2223 and the number of teeth z of output end sun gear 22431It is all 9, by formula i=(z2/z1
+1)3It can be calculated, i ≈ 45.It of courses, z1And z2Value it is without being limited thereto, in concrete application, can pass through and adjust different z1And z2's
Combination can be obtained different transmission ratio i.
Preferably, referring to shown in Fig. 6, input terminal planet carrier 2222 include input terminal substrate 201 and several circumferentially between
Every the input terminal positioning column 202 of distribution, input terminal positioning column 202 and intermediate sun gear 2223 are convexly equipped in input terminal substrate respectively
201 two sides, each input terminal planetary gear 2221 are sheathed on respectively on each input terminal positioning column 202.Input terminal positioning column 202 can
Play the role of radially limiting to input terminal planetary gear 2221, to be conducive to improve the steady of the operation of input terminal planetary gear 2221
Determine reliability.The axial ends of input terminal planetary gear 2221 is resisted against leaning on for input terminal planet carrier 2222 and shell 210 respectively
On the end of nearly motor 100, so as to play the role of axial limiting to input terminal planetary gear 2221.
Preferably, referring to shown in Fig. 6, center row carrier 2242 includes Intermediate substrate 203 and several circumferentially spaced point
The interfix column 204 of cloth, interfix column 204 and output end sun gear 2243 are convexly equipped in the two of Intermediate substrate 203 respectively
Side, each intermediate planetary gear 2241 are sheathed on respectively on each interfix column 204.Interfix column 204 can be to middle planetary tooth
Wheel 2241 plays the role of radially limiting, to be conducive to improve the reliability that intermediate planetary gear 2241 is run.Center row
The axial ends of star gear 2241 is resisted against respectively in center row carrier 2242 and output end planet carrier 2232, so as to centre
Planetary gear 2241 plays the role of axial limiting.
Preferably, referring to shown in Fig. 6, output end planet carrier 2232 include output end substrate 205 and several circumferentially between
Every the input terminal positioning column 202 of distribution, each output end positioning column 206 is all convexly equipped in the side of input terminal substrate 201, and each output
End planetary gear 2231 is sheathed on respectively on each output end positioning column 206.Output end positioning column 206 can be to output end planetary gear
2231 play the role of radially limiting, to be conducive to improve the reliability that output end planetary gear 2231 is run.Output end
The axial ends of planetary gear 2231 is resisted against the end far from motor 100 of output end planet carrier 2232 and shell 210 respectively
On, so as to play the role of axial limiting to output end planetary gear 2231.
Preferably, referring to shown in Fig. 2, Fig. 4 and Fig. 7-9, shell 210 includes main casing 211 and end cap 212, main casing 211
Ceiling plate portion 2112 including hollow cylinder 2111 and set on 2111 one end of hollow cylinder, end cap 212 are removably mounted to hollow
The other end in portion 2111, ring gear 2113 are set on the inner sidewall of hollow cylinder 2111.Planetary gear speed reducing mechanism 220 is installed on by covering
Plate portion 2112, hollow cylinder 2111, end cap 212 are enclosed interior intracavitary.Drive shaft 110 is arranged in interior intracavitary from end cap 212
And connect with one end of planetary gear speed reducing mechanism 220, output shaft 230 is arranged in interior intracavitary and and planetary reducer from ceiling plate portion 2112
The other end of structure 220 connects.In the present embodiment, the outside portion of shell 210 is cylindrical.
Preferably, referring to shown in Fig. 2, Fig. 4 and Fig. 7-9, the end of output shaft 230 being connect with output end planet carrier 2232
Lateral wall is equipped with the rolling decorative pattern 231 formed through annular knurl technique, and output shaft 230 passes through rolling decorative pattern 231 and output end planet carrier
Hole cooperation on 2232 is conducive to prevent that mutually rotation occurs between output shaft 230 and output end planet carrier 2232 in this way, thus sharp
In the reliability for improving the driving rotation of output shaft 230 of output end planet carrier 2232.
Preferably, referring to shown in Fig. 2, Fig. 4 and Fig. 7-9, ceiling plate portion 2112 is equipped with the peace for wearing for output shaft 230
Hole 2116 is filled, guide sleeve 240 is equipped between output shaft 230 and mounting hole 2116.The setting of guide sleeve 240 can prevent output shaft 230 straight
It connects and is contacted with ceiling plate portion 2112, to be conducive to improve the service life of shell 210.
Preferably, hollow cylinder 2111 is connected by a snap mode with end cap 212 and is detachably connected, so that main casing
211 and end cap 212 assembly or disassembly all can hand operation complete, do not need by any auxiliary tool, disassembling operations are very
Simply, conveniently.
Preferably, referring to shown in Fig. 2, Fig. 4 and Fig. 7-9, the end sidewalls far from ceiling plate portion 2112 of hollow cylinder 2111
Equipped with several locating notches 2114 and several button holes 2115, each locating notch 2114 and each button hole 2115 are along hollow cylinder
2111 circumferential direction is alternately distributed, and end cap 212 is equipped with several and is used for the positioning with each 2114 clamping matching of locating notch respectively
Convex block 2121 and several convex buckles 2122 for being used to snap connection with each button hole 2115 respectively.When specific installation, locating convex block
2121 are stuck in locating notch 2114, and convex buckle 2122 is fastened in button hole 2115, to realize main casing 211 and end cap 212
It snaps connection.
Preferably, the power of motor 100 is 3000W or 3000W or less.
In the utility model embodiment, the working principle of planet-gear speed reducing motor are as follows: motor 100 starts, drive shaft 110
Input terminal sun gear 221 is driven to rotate, input terminal sun gear 221 drives input terminal planetary gear 2221 to rotate, input terminal
Planetary gear 2221 drives input terminal planet carrier 2222 and intermediate sun gear 2223 to rotate, in the intermediate driving of sun gear 2223
Between planetary gear 2241 rotate, intermediate planetary gear 2241 drives center row carrier 2242 and 2243 turns of output end sun gear
Dynamic, 2243 drive output planetary gear 2231 of output end sun gear rotation, output end planetary gear 2231 drives output end
Planet carrier 2232 rotates, and output end planet carrier 2232 drives output shaft 230 to rotate, to realize planet-gear speed reducing motor power
Transmission output.
In the planetary gear speed reducing mechanism 220 of the utility model embodiment, output end running part all uses metal parts (i.e.
Output end sun gear 2243, output end planet carrier 2232 and output end planetary gear 2231 are all made of metal), it is intermediate
Running part uses combination (the i.e. use of center row carrier 2242 of metal planet carrier, plastic cement planetary gear and plastic cement sun gear
Metal is made, and intermediate planetary gear 2241 is made of plastic cement, and intermediate sun gear 2223 is made of plastic cement), input terminal passes
Dynamic part is using plastic cement planet carrier, plastic cement planetary gear and metal sun gear or combination (the i.e. input terminal of plastic cement sun gear
Planet carrier 2222 is made of plastic cement, and input terminal planetary gear 2221 is made of plastic cement, and input terminal sun gear 221 is using gold
Belong to or plastic cement be made), in this way, input terminal running part is allowed to play good vibration damping, noise reduction, the effect for reducing weight,
Intermediate transmission part can further obtain vibration damping, noise reduction and the effect for reducing weight in the case where proof strength, and output end passes
Dynamic part can better meet the intensity and shock resistance requirement of component, to both ensure that subtracting for planetary reduction gear 200
Vibration, noise reduction effect, in turn ensure the intensity and service life of planetary reduction gear 200, while also effectively reducing planetary reduction gear
200 draw ratio and weight.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model,
Under all utility models in the utility model are conceived, equivalent structure made based on the specification and figures of the utility model
Transformation, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (10)
1. planet-gear speed reducing motor, including motor and the planetary reduction gear for being installed on described motor one end, which is characterized in that institute
State that planetary reduction gear includes shell, the planetary gear speed reducing mechanism in the shell and one end stretches in outside the shell and the other end
It is arranged in the output shaft connecting in the shell and with described planetary gear speed reducing mechanism one end, there is the motor one end to be arranged in institute
The drive shaft connecting in shell and with the planetary gear speed reducing mechanism other end is stated, the transmission ratio i of the planetary gear speed reducing mechanism meets
Relationship: the ratio k of the outer diameter of 40≤i≤360, the axial length of the shell and the shell meets relationship: 0 < k < 1.
2. planet-gear speed reducing motor as described in claim 1, which is characterized in that the planetary gear speed reducing mechanism includes being installed on
The input terminal planetary set of input terminal sun gear, one end and input terminal sun gear transmission connection in the drive shaft
Output end planetary assemblies that part, one end are connected to the output shaft, transmission connection in the input terminal planetary assemblies with it is described defeated
Middle planetary component between outlet planetary assemblies.
3. planet-gear speed reducing motor as claimed in claim 2, which is characterized in that the input terminal planetary assemblies include several
A input terminal planetary gear for being surrounded on input terminal sun gear periphery and being engaged with the input terminal sun gear, one end
The input terminal planet carrier being connect with the input terminal planetary gear and the intermediate sun gear being connect with the input terminal planet carrier；
The middle planetary component include several be surrounded on the intermediate sun gear periphery and with the intermediate sun gear
The center row carrier and connect with the center row carrier that the intermediate planetary gear of engagement, one end are connect with the intermediate planetary gear
The output end sun gear connect；
The output end planetary assemblies include several be surrounded on output end sun gear periphery and with the output end too
The output end planetary gear of positive gear engagement and one end are connect with the output end planetary gear and the other end and the drive shaft
The output end planet carrier of connection；
The inner sidewall of the shell is equipped with ring gear, each input terminal planetary gear, each intermediate planetary gear and each
The output end planetary gear is all engaged with the ring gear.
4. planet-gear speed reducing motor as claimed in claim 3, which is characterized in that
The input terminal sun gear is to use metal gear made of metal or for using plastic cement gear made of plastic cement；
The input terminal planetary gear is using plastic cement gear made of plastic cement；
The input terminal planet carrier is using plastic cement frame body made of plastic cement；
The intermediate sun gear is using plastic cement gear made of plastic cement；
The intermediate planetary gear is using plastic cement gear made of plastic cement；
The center row carrier is using metal frame body made of metal；
The output end sun gear is using metal gear made of metal；
The output end planetary gear is using metal gear made of metal；
The output end planet carrier is using metal frame body made of metal.
5. planet-gear speed reducing motor as claimed in claim 4, which is characterized in that the intermediate sun gear and the input
Planet carrier is held to be integrally formed；And/or
The output end sun gear and the center row carrier are integrally formed.
6. such as the described in any item planet-gear speed reducing motors of claim 3 to 5, which is characterized in that the input terminal planet tooth
The hardness of wheel is less than the hardness of the intermediate planetary gear, and the input terminal planetary gear elasticity modulus is greater than the center row
The elasticity modulus of star gear.
7. such as the described in any item planet-gear speed reducing motors of claim 3 to 5, which is characterized in that the intermediate sun gear
Engagement height with the intermediate planetary gear is that the output end sun gear with the output end planetary gear engages height
1~1.2 times of degree；And/or
The input terminal sun gear and the input terminal planetary gear engagement height be the intermediate sun gear with it is described
0.5~1 times of the engagement height of intermediate planetary gear.
8. such as the described in any item planet-gear speed reducing motors of claim 3 to 5, which is characterized in that the input terminal planet carrier
Including input terminal substrate and several circumferentially spaced input terminal positioning columns, the input terminal positioning column and the centre
Sun gear is convexly equipped in the two sides of the input terminal substrate respectively, and each input terminal planetary gear is sheathed on each described defeated respectively
Enter to hold on positioning column；
The center row carrier includes Intermediate substrate and several circumferentially spaced interfix columns, the interfix
Column and the output end sun gear are convexly equipped in the two sides of the Intermediate substrate respectively, and each intermediate planetary gear is arranged respectively
In on each interfix column；
The output end planet carrier includes output end substrate and several circumferentially spaced input terminal positioning columns, each described
Output end positioning column is all convexly equipped in the side of the input terminal substrate, and each output end planetary gear is sheathed on each institute respectively
It states on output end positioning column.
9. such as planet-gear speed reducing motor described in any one of claim 1 to 5, which is characterized in that 45≤i≤360；And/or
0 k≤0.95 <.
10. planet-gear speed reducing motor as claimed in claim 9, which is characterized in that 45≤i≤300；And/or 0.4≤k≤
0.9。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821896990.1U CN209448583U (en) | 2018-11-16 | 2018-11-16 | Planet-gear speed reducing motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821896990.1U CN209448583U (en) | 2018-11-16 | 2018-11-16 | Planet-gear speed reducing motor |
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| Publication Number | Publication Date |
|---|---|
| CN209448583U true CN209448583U (en) | 2019-09-27 |
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ID=68011680
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821896990.1U Active CN209448583U (en) | 2018-11-16 | 2018-11-16 | Planet-gear speed reducing motor |
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| Country | Link |
|---|---|
| CN (1) | CN209448583U (en) |
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2018
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