CN203730668U - Electric vehicle reducer - Google Patents
Electric vehicle reducer Download PDFInfo
- Publication number
- CN203730668U CN203730668U CN201420057786.6U CN201420057786U CN203730668U CN 203730668 U CN203730668 U CN 203730668U CN 201420057786 U CN201420057786 U CN 201420057786U CN 203730668 U CN203730668 U CN 203730668U
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Abstract
The utility model relates to an electric vehicle reducer. A gear ring (16) is adopted for floating and is in clearance fit with a sun gear (40). Power of a motor assembly is transferred to the sun gear (40) through a motor output shaft. Due to the fact that the gear ring (16) and a casing (21) are fixed to limit rotating, and the power is transferred through a planet shaft (15), a planet gear (17) and a planet carrier (25) and is transmitted through an output shaft (5) in a homodromous deceleration mode to obtain large drive torque. A brake belt (54) is driven by rotating of a brake rocker arm (5) to conduct braking during parking to prevent a vehicle from rotating and ensure parking safety of a vehicle. The casing (21) is provided with an annular water jacket, heat generated in operation is dissipated in the outside, and normal work is ensured. The reducer enables power transmission parts to be long in service life and high in bearing capability, has the advantages of being small in size and light in weight, is simple in machining and assembly and small in occupation space, and has high practical value.
Description
Technical field
The utility model relates to a kind of speed reducer for electric vehicle, and the retarder especially for use in the planetary gear construction using in electric vehicle, belongs to mechanical reducer field.
Background technique
Retarder plays coupling rotating speed and transmitting torque between prime mover and working machine or actuator, and in modern mechanical, application is very extensive; Being used in electric vehicle speed reducer prior art, is a kind of comparatively ripe technology for parallel-axis type retarder, according to different needs, the structure of retarder also can some difference, but general structure is all same or analogous, and volume is larger, same volume bearing capacity is little; Because Planetary Gear Transmission has the movement characteristic of power dividing and rotation axis, within adding, the reasonable utilization of engagement, makes it with respect to the transmission of common dead axle line gear, have technically and economically lot of advantages, as little in volume, lightweight, power to weight ratio is large; Meshing power is less than the power that will transmit, and power loss is little, and efficiency is high; Stable working, noise are little; Although Planetary Gear Transmission has a lot of advantages, be widely used, its complicated structure, must resolve and all carry the problems such as unsteady; In addition its working state is very complicated, not only load working condition and power plant are varied, there will be the external excitation of being introduced by motor or load aspect, also there will be by time become mesh stiffness, gear drive error and the engaging-in caused internal motivation of impact of nibbling out, the vibration of various degrees and noise problem, worsened the dynamic performance of electric motor car, affect working life, meanwhile, the noise that mechanical vibration produce, makes again environment be subject to severe contamination.
Model utility content
The purpose of this utility model is to have overcome above-mentioned shortcoming of the prior art, a kind of electronic speed of a motor vehicle device is provided, guarantee electric vehicle reliability of operation, design ingenious, simple for structure, boundary dimension is little, lightweight, technical order is more advanced, uses reliably, and installation and maintenance are convenient, the conformity that improves product when reducing product cost, is suitable for large-scale promotion application.
The utility model is achieved by the following technical solution: a kind of speed reducer for electric vehicle, and it mainly consists of planetary gear speed-reduction assembly, electric machine assembly; Planetary gear speed-reduction assembly is comprised of retarder end cap (12), gear ring (16), sun gear (40), planetary pinion (17), planet carrier (25), planet axis (15), output shaft (5), sensor gear (6), output shaft end cap (4); Electric machine assembly is comprised of housing (21), rear end cover (27), motor stator (26), rotor (30), motor support axle (38), motor output shaft (39); It is characterized in that: the external diameter of gear ring (16) is provided with the spline that spline tooth is provided with housing (21) and coordinates and use collar (14) spacing; Gear ring (16) is provided with the helical teeth engagement that helical teeth and planetary pinion (17) are provided with, planetary pinion (17) is provided with internal spline and coordinates with the external splines that planet axis (15) is provided with, packing ring (22) is arranged between planetary pinion (17) and bearing (13), bearing (13) is arranged on the two ends of planet axis (15), one end is arranged in the hole that output shaft (5) is provided with, and the other end is arranged in the hole that planet carrier (25) is provided with and is spacing with collar (23); Sun gear (40) one end is provided with external splines and coordinates with the external splines that motor output shaft (39) is provided with, the helical teeth engagement that the helical teeth that sun gear (40) is provided with and planet axis (15) are provided with, bearing (41) external diameter coordinates with the hole that output shaft (5) is provided with, and internal diameter coordinates with the axle that sun gear (40) is provided with; The external diameter of bearing (29) coordinates with the hole that housing (21) is provided with, and internal diameter coordinates with the axle head that planet carrier (25) is provided with; It is fastening that planet carrier (25) is provided with positioning hole concentric fit use screw (56) that location pillow block and output shaft (5) be provided with; The hole that the external diameter of bearing (43) is provided with retarder end cap (12) coordinates and uses collar (9) spacing, and internal diameter coordinates with the pillow block that output shaft (5) is provided with; Sensor gear (6) and output shaft (5) interference fit, sensor (8) be arranged in the hole that output shaft end cap (4) is provided with and use bolt (7) fastening, sensor (8) coordinates with sensor gear radial clearance; Output shaft end cap (4) is provided with the pillow block that seam is provided with retarder end cap (12) and coordinates and use bolt (10) fastening; Lining (3), oil sealing (2) are arranged in the hole that output shaft end cap (4) is provided with; The pillow block interference fit that dust-proof cover (1) and output shaft end cap (4) are provided with; Retarder end cap (12) is provided with the seam that pillow block is provided with housing (21) and coordinates and use bolt (11) fastening; Seal ring (18) is arranged on the ring-shaped water jacket being provided with housing (21) in the circular groove that water jacket end cap (19) is provided with and is sealed and matched and uses bolt (20) fastening; Motor stator (26) is provided with the tapped hole that fixed hole is provided with housing (21) and coordinates and use bolt (24) fastening; Rotor (30), motor support axle (38), motor output shaft (39) concentric fit fastening with bolt (42); Sensor sensing rotor (35), thrust plate (37), bearing (36) are arranged on the pillow block that motor support axle (38) is provided with, and bearing (36) external diameter is arranged in the hole that rear end cover (27) is provided with; For sensor (33), bolt (34), fastening sheet (32) are fixed in the hole that rear end cover (27) is provided with; Rear end cover (27) is provided with pillow block and the seam that is provided with housing (21) coordinates with bolt (28) fastening; Seal ring (44) is arranged in the circular groove that sensor socket (45) is provided with, and sensor socket (45) is arranged in the hole that rear end cover (27) is provided with and is fastening with bolt (47); The lead-in wire (46) of motor stator (26) is fastened on collets (48) above with motor lead-out wire (50) with bolt (49), and card (51) is stuck in motor lead-out wire (50) on housing (21); Clamping strap (54) and the concentric Spielpassung of output shaft (5), one end is fixed on housing (21), the other end is connected with brake rocker arm (55), brake rocker arm (55) is arranged on bearing pin (52) and goes up and use collar (53) spacing, and bearing pin (52) is fixed on retarder end cap (12) with bolt (57).
Described planetary pinion (17), planet axis (15) are uniformly distributed at planet carrier (25), the upper annular concentric of output shaft (5).
Described sensor gear (6) radial position is provided with the rectangle gear of decile.
The utility model beneficial effect is compared with prior art, long service life, the bearing capacity of power transmission component 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 use value.
Accompanying drawing explanation
Fig. 1 is sectional 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 a kind of speed reducer for electric vehicle on electric vehicle, the external diameter of its gear ring (16) is provided with the spline that spline tooth is provided with housing (21) and coordinates and use collar (14) spacing; Gear ring (16) is provided with the helical teeth engagement that helical teeth and planetary pinion (17) are provided with, planetary pinion (17) is provided with internal spline and coordinates with the external splines that planet axis (15) is provided with, packing ring (22) is arranged between planetary pinion (17) and bearing (13), bearing (13) is arranged on the two ends of planet axis (15), one end is arranged in the hole that output shaft (5) is provided with, and the other end is arranged in the hole that planet carrier (25) is provided with and is spacing with collar (23); Sun gear (40) one end is provided with external splines and coordinates with the external splines that motor output shaft (39) is provided with, the helical teeth engagement that the helical teeth that sun gear (40) is provided with and planet axis (15) are provided with, bearing (41) external diameter coordinates with the hole that output shaft (5) is provided with, and internal diameter coordinates with the axle that sun gear (40) is provided with; The external diameter of bearing (29) coordinates with the hole that housing (21) is provided with, and internal diameter coordinates with the axle head that planet carrier (25) is provided with; Planet carrier (25) is provided with positioning hole concentric fit that positioning shaft and output shaft (5) be provided with fastening with screw (56); The hole that the external diameter of bearing (43) is provided with retarder end cap (12) coordinates and uses collar (9) spacing, and internal diameter coordinates with the pillow block that output shaft (5) is provided with; Sensor gear (6) and output shaft (5) interference fit, sensor (8) be arranged in the hole that output shaft end cap (4) is provided with and use bolt (7) fastening, sensor (8) coordinates with sensor gear radial clearance; Sensor gear (6) radial position is provided with the rectangle gear of decile; Output shaft end cap (4) is provided with the pillow block that seam is provided with retarder end cap (12) and coordinates and use bolt (10) fastening; Lining (3), oil sealing (2) are arranged in the hole that output shaft end cap (4) is provided with; The pillow block interference fit that dust-proof cover (1) and output shaft end cap (4) are provided with; Retarder end cap (12) is provided with the seam that pillow block is provided with housing (21) and coordinates and use bolt (11) fastening; Seal ring (18) is arranged on the ring-shaped water jacket being provided with housing (21) in the circular groove that water jacket end cap (19) is provided with and is sealed and matched and uses bolt (20) fastening.
Motor stator (26) is provided with the tapped hole that fixed hole is provided with housing (21) and coordinates and use bolt (24) fastening; Rotor (30), motor support axle (38), motor output shaft (39) concentric fit fastening with bolt (42); Sensor sensing rotor (35), thrust plate (37), bearing (36) are arranged on the pillow block that motor support axle (38) is provided with, and bearing (36) external diameter is arranged in the hole that rear end cover (27) is provided with; For sensor (33), bolt (34), fastening sheet (32) are fixed in the hole that rear end cover (27) is provided with; Rear end cover (27) is provided with pillow block and the seam that is provided with housing (21) coordinates with bolt (28) fastening; Seal ring (44) is arranged in the circular groove that sensor socket (45) is provided with, and sensor socket (45) is arranged in the hole that rear end cover (27) is provided with and is fastening with bolt (47); Motor stator (26) lead-in wire (46) is fastened on collets (48) above with motor lead-out wire (50) with bolt (49), and card (51) is stuck in motor lead-out wire (50) on housing (21); Clamping strap (54) and the concentric Spielpassung of output shaft (5), one end is fixed on housing (21), the other end is connected with brake rocker arm (55), brake rocker arm (55) is arranged on bearing pin (52) and goes up and use collar (53) spacing, and bearing pin (52) is fixed on retarder end cap (12) with bolt (57); Described planetary pinion (17), planet axis (15) are uniformly distributed at planet carrier (25), the upper annular concentric of output shaft (5).
The utility model adopts gear ring (16) to float, sun gear (40) Spielpassung, the power of electric machine assembly passes to sun gear (40) by motor output shaft (39), because gear ring (16) and housing (21) are fixing, restriction is rotated, so power is through planet axis (15), planetary pinion (17), planet carrier (25), finally by output shaft (5), power is slowed down and spread out of in the same way, can obtain larger driving moment, clamping strap (54) rotarily drives brake by brake rocker arm (55) when stopping, prevent that vehicle from rotating, guarantee the parking safety of vehicle, housing (21) is provided with ring-shaped water jacket, the heat producing is externally dissipated, extend the working life of power transmission 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, the spirit and scope that do not depart from technical solutions of the utility model, all should be encompassed in the middle of claim scope of the present utility model.
Claims (3)
1. a speed reducer for electric vehicle, it mainly consists of planetary gear speed-reduction assembly, electric machine assembly; Planetary gear speed-reduction assembly is comprised of retarder end cap (12), gear ring (16), sun gear (40), planetary pinion (17), planet carrier (25), planet axis (15), output shaft (5), sensor gear (6), output shaft end cap (4); Electric machine assembly is comprised of housing (21), rear end cover (27), motor stator (26), rotor (30), motor support axle (38), motor output shaft (39); It is characterized in that: the external diameter of gear ring (16) is provided with the spline that spline tooth is provided with housing (21) and coordinates and use collar (14) spacing; Gear ring (16) is provided with the helical teeth engagement that helical teeth and planetary pinion (17) are provided with, planetary pinion (17) is provided with internal spline and coordinates with the external splines that planet axis (15) is provided with, packing ring (22) is arranged between planetary pinion (17) and bearing (13), bearing (13) is arranged on the two ends of planet axis (15), one end is arranged in the hole that output shaft (5) is provided with, and the other end is arranged in the hole that planet carrier (25) is provided with and is spacing with collar (23); Sun gear (40) one end is provided with external splines and coordinates with the external splines that motor output shaft (39) is provided with, the helical teeth engagement that the helical teeth that sun gear (40) is provided with and planet axis (15) are provided with, bearing (41) external diameter coordinates with the hole that output shaft (5) is provided with, and internal diameter coordinates with the axle that sun gear (40) is provided with; The external diameter of bearing (29) coordinates with the hole that housing (21) is provided with, and internal diameter coordinates with the axle head that planet carrier (25) is provided with; It is fastening that planet carrier (25) is provided with positioning hole concentric fit use screw (56) that location pillow block and output shaft (5) be provided with; The hole that the external diameter of bearing (43) is provided with retarder end cap (12) coordinates and uses collar (9) spacing, and internal diameter coordinates with the pillow block that output shaft (5) is provided with; Sensor gear (6) and output shaft (5) interference fit, sensor (8) be arranged in the hole that output shaft end cap (4) is provided with and use bolt (7) fastening, sensor (8) coordinates with sensor gear radial clearance; Output shaft end cap (4) is provided with the pillow block that seam is provided with retarder end cap (12) and coordinates and use bolt (10) fastening; Lining (3), oil sealing (2) are arranged in the hole that output shaft end cap (4) is provided with; The pillow block interference fit that dust-proof cover (1) and output shaft end cap (4) are provided with; Retarder end cap (12) is provided with the seam that pillow block is provided with housing (21) and coordinates and use bolt (11) fastening; Seal ring (18) is arranged on the ring-shaped water jacket being provided with housing (21) in the circular groove that water jacket end cap (19) is provided with and is sealed and matched and uses bolt (20) fastening; Motor stator (26) is provided with the tapped hole that fixed hole is provided with housing (21) and coordinates and use bolt (24) fastening; Rotor (30), motor support axle (38), motor output shaft (39) concentric fit fastening with bolt (42); Sensor sensing rotor (35), thrust plate (37), bearing (36) are arranged on the pillow block that motor support axle (38) is provided with, and bearing (36) external diameter is arranged in the hole that rear end cover (27) is provided with; For sensor (33), bolt (34), fastening sheet (32) are fixed in the hole that rear end cover (27) is provided with; Rear end cover (27) is provided with pillow block and the seam that is provided with housing (21) coordinates with bolt (28) fastening; Seal ring (44) is arranged in the circular groove that sensor socket (45) is provided with, and sensor socket (45) is arranged in the hole that rear end cover (27) is provided with and is fastening with bolt (47); The lead-in wire (46) of motor stator (26) is fastened on collets (48) above with motor lead-out wire (50) with bolt (49), and card (51) is stuck in motor lead-out wire (50) on housing (21); Clamping strap (54) and the concentric Spielpassung of output shaft (5), one end is fixed on housing (21), the other end is connected with brake rocker arm (55), brake rocker arm (55) is arranged on bearing pin (52) and goes up and use collar (53) spacing, and bearing pin (52) is fixed on retarder end cap (12) with bolt (57).
2. speed reducer for electric vehicle according to claim 1, is characterized in that: described planetary pinion (17), planet axis (15) are uniformly distributed at planet carrier (25), the upper annular concentric of output shaft (5).
3. speed reducer for electric vehicle according to claim 1, is characterized in that: described sensor gear (6) radial position is provided with the rectangle gear of decile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420057786.6U CN203730668U (en) | 2014-02-02 | 2014-02-02 | Electric vehicle reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420057786.6U CN203730668U (en) | 2014-02-02 | 2014-02-02 | Electric vehicle reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203730668U true CN203730668U (en) | 2014-07-23 |
Family
ID=51200746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420057786.6U Withdrawn - After Issue CN203730668U (en) | 2014-02-02 | 2014-02-02 | Electric vehicle reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203730668U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775567A (en) * | 2014-02-02 | 2014-05-07 | 北京阳铭诚科技有限责任公司 | Speed reducer of electric vehicle |
| CN104989790A (en) * | 2015-07-01 | 2015-10-21 | 上海振华重工集团(南通)传动机械有限公司 | Main cutterhead driving gear box of shield tunneling machine |
| CN105240500A (en) * | 2015-10-21 | 2016-01-13 | 安徽星瑞齿轮传动有限公司 | Automobile speed reducer |
-
2014
- 2014-02-02 CN CN201420057786.6U patent/CN203730668U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775567A (en) * | 2014-02-02 | 2014-05-07 | 北京阳铭诚科技有限责任公司 | Speed reducer of electric vehicle |
| CN104989790A (en) * | 2015-07-01 | 2015-10-21 | 上海振华重工集团(南通)传动机械有限公司 | Main cutterhead driving gear box of shield tunneling machine |
| CN105240500A (en) * | 2015-10-21 | 2016-01-13 | 安徽星瑞齿轮传动有限公司 | Automobile speed reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140723 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |