CN203734452U - Electric vehicle planetary gear reducer - Google Patents
Electric vehicle planetary gear reducer Download PDFInfo
- Publication number
- CN203734452U CN203734452U CN201420052609.9U CN201420052609U CN203734452U CN 203734452 U CN203734452 U CN 203734452U CN 201420052609 U CN201420052609 U CN 201420052609U CN 203734452 U CN203734452 U CN 203734452U
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- CN
- China
- Prior art keywords
- coordinates
- planetary gear
- planet carrier
- end cap
- output shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an electric vehicle planetary gear reducer. According to the electric vehicle planetary gear reducer, the outer diameter of a gear ring is provided with rectangular teeth which are matched rectangular key grooves arranged on a reducer shell; the inner diameter of the gear ring is provided with skewed teeth which are engaged with skewed teeth arranged on a planetary gear; the inner diameter of a sun gear is provided with internal splines which are matched with external splines arranged on a motor output shaft; the outer diameter of the sun gear is provided with skewed teeth which are engaged with skewed teeth arranged on the planetary gear; and a pin shaft is arranged in a hole formed in a planetary frame and is riveted with the planetary frame. The dynamic of a motor assembly is transferred to the sun gear through the motor output shaft; since the gear ring is fixed to the reducer shell, rotation can be limited, and the dynamic is outputted through the planetary gear and the planetary frame, and is finally transferred out in an unidirectional and deceleration manner through an output flange, and therefore, a larger driving moment can be obtained. The power transmission parts of the electric vehicle planetary gear reducer of the utility model have long service lives and strong bearing capacities. The electric vehicle planetary gear reducer has the advantages of small size, light weight, simple processing and assembly, small occupied space and great practical value.
Description
Technical field
The utility model relates to a kind of electric motor car planetary reducer, especially for use in the planetary reducer using in electric automobile, belongs to mechanical reducer field.
Background technology
Decelerator plays coupling rotating speed and transmitting torque between prime mover and working machine or actuator, and in modern mechanical, application is very extensive.Decelerator can be divided into universal speed reducer and the large class of professional decelerator two by purposes, mainly comprises gear reduction unit, worm reducer, gear one worm reducer, planetary reduction gear etc.Planetary reduction gear has power dividing, the private characteristic of multiple tooth engagement, compares other decelerators, can increase substantially the power output of decelerator, and application surface is very extensive, can be used as matching component for industries such as lifting, excavation, transport, buildings; Being used in electric vehicle speed reducer prior art, is a kind of comparatively ripe technology for parallel-axis type decelerator, according to different needs, the structure of decelerator also can some difference, but general structure is all same or analogous, and volume is larger, same volume bearing capacity is little.
Utility model content
The purpose of this utility model is to have overcome above-mentioned shortcoming of the prior art, a kind of electric motor car planetary reducer is provided, ensure electric automobile reliability of operation, design ingenious, simple for structure, overall dimension is little, lightweight, technical indicator is more advanced, uses reliably, and installation and maintenance are convenient, the consistency that improves product in reducing product cost, is suitable for large-scale promotion application.
The utility model is achieved by the following technical solution: a kind of electric motor car planetary reducer, and it is mainly made up of electric machine assembly, planetary gear speed-reduction assembly; Planetary gear speed-reduction assembly is made up of reducer shell 11, end cap 17, alignment pin 8, gear ring 12, sun gear 26, planetary gear 13, planet carrier 25, bearing pin 18, output shaft bearing 20, sealing ring 22, output shaft flange 21; It is characterized in that: be provided with delivery port 1, water inlet 4 at electric machine casing 2; Electric machine assembly is provided with power lead-in wire 3; Reducer shell 11 is provided with seam and coordinates with the boss that electric motor end cap 5 is provided with; Alignment pin 8 is arranged in the location hole that location hole that electric motor end cap 5 is provided with and reducer shell 11 be provided with, and housing set bolt 9 links together reducer shell 11 and electric motor end cap 5; The rectangular teeth that the external diameter of gear ring 12 is provided with in reducer shell 11, be provided with rectangle keyway and coordinate, the internal diameter of gear ring 12 is provided with helical teeth and engages with the helical teeth that planetary gear 13 is provided with; Be provided with external splines at motor output shaft 6, collar 7 is arranged in the annular groove that motor output shaft 6 is provided with; The internal spline that the internal diameter of sun gear 26 is provided with coordinates with the external splines that motor output shaft 6 is provided with, and the external diameter of sun gear 26 is provided with helical teeth and engages with the helical teeth that planetary gear 13 is provided with; The hole that planetary gear needle bearing 14 external diameters and planetary gear 13 are provided with is slidably matched, and internal diameter coordinates with bearing pin 18 external diameters; Bearing pin 18 be arranged in the hole that planet carrier 25 is provided with and with planet carrier 25 riveteds; Copper packing 27 is arranged between the axial two ends of planetary gear 13 and planet carrier 25 and is concentric with bearing pin 18; Planet carrier needle bearing 23 external diameters coordinate with the endoporus that motor output shaft 6 is provided with, and the pillow block external diameter that internal diameter is provided with planet carrier 25 coordinates; End face bearing 19 1 sides coordinate with the end face that planet carrier 25 is provided with, and opposite side coordinates with the axial end of sun gear 26; The external diameter of output shaft bearing 20 coordinates with the hole that end cap 17 is provided with, and the pillow block external diameter that internal diameter is provided with planet carrier 25 coordinates; The external diameter of sealing ring 22 coordinates with the hole that end cap 17 is provided with, and internal diameter coordinates with the pillow block that planet carrier 25 is provided with; Output shaft flange 21 is provided with that external splines that internal spline is provided with planet carrier 25 pillow blocks coordinates and is fixing with bolt 24; End cap seal circle 16 is arranged in the cannelure that end cap 17 is provided with; End cap 17 is provided with the seam that boss is provided with reducer shell 11 and coordinates and use bolt of cover 15 fixing; Electric motor end cap sealing ring 10 is arranged in the cannelure that electric motor end cap 5 boss are provided with.
Described planetary gear 13 is uniformly distributed with one heart on planet carrier 25.
The utility model beneficial effect is compared with prior art, long service life, the bearing capacity of power transmission parts are strong, and required parts are few, simple in structure, there is little, the lightweight feature of volume, and process and assemble simple, take up room little, there is larger practical value.
Brief description of the drawings
Fig. 1 is cutaway view of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in detail: be used in the planetary reducer using in electric automobile, it is mainly made up of electric machine assembly, planetary gear speed-reduction assembly; Planetary gear speed-reduction assembly is made up of reducer shell 11, end cap 17, alignment pin 8, gear ring 12, sun gear 26, planetary gear 13, planet carrier 25, bearing pin 18, output shaft bearing 20, sealing ring 22, output shaft flange 21; It is characterized in that: be provided with delivery port 1, water inlet 4 at electric machine casing 2, to dissipate by water route the heat that electric machine assembly produces, make motor in optimum state, reduce thermal loss; Electric machine assembly is provided with power lead-in wire 3, so that the running of control system control motor; Reducer shell 11 is provided with seam and coordinates with the boss that electric motor end cap 5 is provided with, and ensures concentric fit; Alignment pin 8 is arranged in the location hole that location hole that electric motor end cap 5 is provided with and reducer shell 11 be provided with, and housing set bolt 9 links together reducer shell 11 and electric motor end cap 5; The rectangular teeth that the external diameter of gear ring 12 is provided with in reducer shell 11, be provided with rectangle keyway and coordinate, to assemble fast gear ring 12, the internal diameter of gear ring 12 is provided with helical teeth and engages with the helical teeth that planetary gear 13 is provided with; Be provided with external splines at motor output shaft 6, collar 7 is arranged in the annular groove that motor output shaft 6 is provided with; The internal spline that the internal diameter of sun gear 26 is provided with coordinates with the external splines that motor output shaft 6 is provided with, and the external diameter of sun gear 26 is provided with helical teeth and engages with the helical teeth that planetary gear 13 is provided with; The hole that planetary gear needle bearing 14 external diameters and planetary gear 13 are provided with is slidably matched, and internal diameter coordinates with bearing pin 18 external diameters; Bearing pin 18 be arranged in the hole that planet carrier 25 is provided with and with planet carrier 25 riveteds; Copper packing 27 is arranged between the axial two ends of planetary gear 13 and planet carrier 25 and is concentric with bearing pin 18; Planet carrier needle bearing 23 external diameters coordinate with the endoporus that motor output shaft 6 is provided with, and the pillow block external diameter that internal diameter is provided with planet carrier 25 coordinates; End face bearing 19 1 sides coordinate with the end face that planet carrier 25 is provided with, and opposite side coordinates with the axial end of sun gear 26, by with the moving axially of the engagement limits sun gear of collar 7; The external diameter of output shaft bearing 20 coordinates with the hole that end cap 17 is provided with, and the pillow block external diameter that internal diameter is provided with planet carrier 25 coordinates; The external diameter of sealing ring 22 coordinates with the hole that end cap 17 is provided with, and internal diameter coordinates with the pillow block that planet carrier 25 is provided with, and prevents the leakage of oil of planetary gear speed-reduction assembly, ensures that the internal gear of planetary gear speed-reduction assembly is lubricated; Output shaft flange 21 is provided with that external splines that internal spline is provided with planet carrier 25 pillow blocks coordinates and is fixing with bolt 24; End cap seal circle 16 is arranged in the cannelure that end cap 17 is provided with; End cap 17 is provided with the seam that boss is provided with reducer shell 11 and coordinates and use bolt of cover 15 fixing; Electric motor end cap sealing ring 10 is arranged in the cannelure that electric motor end cap 5 boss are provided with; Planetary gear 13 is uniformly distributed with one heart on planet carrier 25.
The power of electric machine assembly passes to sun gear 13 by motor output shaft 6, because gear ring 12 is fixing with reducer shell 11, restriction is rotated, so power is through planetary gear 13, planet carrier 25 is exported, finally by output shaft flange 21, power is slowed down and spread out of in the same way, can obtain larger driving moment, to extending the useful life of power drive system; Simple installation, easily controls, and so far reaches the purpose of this utility model, has implemented.
Finally explanation: above embodiment is only unrestricted in order to the technical solution of the utility model to be described.With reference to preferred embodiment, the utility model is elaborated, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, do not depart from the spirit and scope of technical solutions of the utility model, all should be encompassed in the middle of claim scope of the present utility model.
Claims (2)
1. an electric motor car planetary reducer, it is mainly made up of electric machine assembly, planetary gear speed-reduction assembly; Planetary gear speed-reduction assembly is made up of reducer shell, end cap, alignment pin, gear ring, sun gear, planetary gear, planet carrier, bearing pin, output shaft bearing, sealing ring, output shaft flange; It is characterized in that: be provided with delivery port, water inlet at electric machine casing; Electric machine assembly is provided with power lead-in wire; Reducer shell is provided with the boss that seam is provided with electric motor end cap and coordinates; Alignment pin is arranged in the location hole that location hole that electric motor end cap is provided with and reducer shell be provided with, and housing set bolt links together reducer shell and electric motor end cap; The rectangular teeth that the external diameter of gear ring is provided with coordinates with the rectangle keyway being provided with in reducer shell, and the internal diameter of gear ring is provided with the helical teeth that helical teeth is provided with planetary gear and engages; Be provided with external splines at motor output shaft, collar is arranged in the annular groove that motor output shaft is provided with; The external splines that the internal spline that the internal diameter of sun gear is provided with is provided with motor output shaft coordinates, and the helical teeth that the helical teeth that the external diameter of sun gear is provided with is provided with planetary gear engages; The hole that planetary gear needle bearing external diameter and planetary gear are provided with is slidably matched, and internal diameter coordinates with bearing pin external diameter; Bearing pin be arranged in the hole that planet carrier is provided with and with planet carrier riveted; Copper packing is arranged between planetary axial two ends and planet carrier and is concentric with bearing pin; The endoporus that planet carrier needle bearing external diameter is provided with motor output shaft coordinates, and the pillow block external diameter that internal diameter is provided with planet carrier coordinates; The end face that end face bearing one side is provided with planet carrier coordinates, and opposite side coordinates with the axial end of sun gear; The hole that the external diameter of output shaft bearing is provided with end cap coordinates, and the pillow block external diameter that internal diameter is provided with planet carrier coordinates; The hole that the external diameter of sealing ring is provided with end cap coordinates, and the pillow block that internal diameter is provided with planet carrier coordinates; Output shaft flange is provided with the external splines that internal spline is provided with planet carrier pillow block and coordinates and fix with bolt; End cap seal circle is arranged in the cannelure that end cap is provided with; End cap is provided with that seam that boss is provided with reducer shell coordinates and fixes with bolt of cover; Electric motor end cap sealing ring is arranged in the cannelure that electric motor end cap boss is provided with.
2. electric motor car planetary reducer according to claim 1, is characterized in that: described planetary gear is uniformly distributed with one heart on planet carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420052609.9U CN203734452U (en) | 2014-01-27 | 2014-01-27 | Electric vehicle planetary gear reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420052609.9U CN203734452U (en) | 2014-01-27 | 2014-01-27 | Electric vehicle planetary gear reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203734452U true CN203734452U (en) | 2014-07-23 |
Family
ID=51204496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420052609.9U Expired - Fee Related CN203734452U (en) | 2014-01-27 | 2014-01-27 | Electric vehicle planetary gear reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203734452U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762779A (en) * | 2014-01-27 | 2014-04-30 | 北京阳铭诚科技有限责任公司 | Planetary gear reducer of electric vehicle |
| CN107630942A (en) * | 2017-10-19 | 2018-01-26 | 兰州万里航空机电有限责任公司 | A kind of limiter of moment being used in rotary actuator |
-
2014
- 2014-01-27 CN CN201420052609.9U patent/CN203734452U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762779A (en) * | 2014-01-27 | 2014-04-30 | 北京阳铭诚科技有限责任公司 | Planetary gear reducer of electric vehicle |
| CN107630942A (en) * | 2017-10-19 | 2018-01-26 | 兰州万里航空机电有限责任公司 | A kind of limiter of moment being used in rotary actuator |
| CN107630942B (en) * | 2017-10-19 | 2024-04-12 | 兰州万里航空机电有限责任公司 | Moment limiter for rotary actuator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20180127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |