CN213298757U

CN213298757U - Electric motor car speed reducer assembly

Info

Publication number: CN213298757U
Application number: CN202022066641.0U
Authority: CN
Inventors: 臧文叶
Original assignee: Individual
Current assignee: Changzhou Yuandong Advanced Plastics Co ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-05-28
Anticipated expiration: 2030-09-18

Abstract

The utility model relates to an electric motor car speed reducer assembly, the power distribution box comprises a box body, the box in be equipped with the iron core and be located iron core central motor shaft and pencil, the motor shaft be fixed in through three motor shaft bearings of group of upper end, middle part and lower extreme in the box, the upper end of motor shaft is provided with motor shaft gear, motor shaft gear pass through reduction gear lug connection output shaft mechanism, the box in upper left corner department be provided with threading punch combination, threading punch combination including a plurality of through wires holes that set up according to the shell cambered surface equidistance of box, the pencil of bottom half realizes that inside walking is walked the line and arranges, the utility model discloses the output shaft saves the gear train, the lug connection speed reducer, and the concentricity is good, save material, reduces the production of frictional heat and noise, has increased electric motor.

Description

Electric motor car speed reducer assembly

Technical Field

The utility model belongs to the technical field of electric motor car motor technique and specifically relates to an electric motor car speed reducer assembly.

Background

In order to respond to the national call for energy conservation and emission reduction and more convenient travel, the purchase and utilization rate of electric vehicles at home and abroad are greatly increased, and the electric vehicle has the advantages of small and exquisite vehicle body, convenient parking, low use cost and the like. However, due to the fact that the technical levels of domestic electric vehicle manufacturers are different, many manufacturers only make articles on the appearance surface in order to further reduce the selling price of electric vehicle terminals, and the performance of core components such as motors cannot be improved in a delayed manner, so that the existing electric vehicles are poor in performance, high in noise, severe in jitter, poor in assembly and arrangement, and disordered in wiring, and finally the service life of the whole electric vehicle is short.

What is more obvious among the existing problem is that the output shaft often has added complicated gear train mechanism with being connected of speed reducer in the speed reducer assembly, has not only increased the installation volume, and the friction increases moreover, produces a large amount of heats and noise easily, and the pencil overall arrangement also exposes outside moreover, suffers the damage easily, these all are the factor that seriously influences electric motor car life, need improve.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to solve the problems existing in the background technology, an improved electric vehicle speed reducer assembly is provided.

The utility model provides a technical scheme that its technical problem adopted is: an electric vehicle speed reducer assembly comprises a box body, wherein an iron core, a motor shaft and a wire harness are arranged in the box body, the motor shaft and the wire harness are positioned in the center of the iron core, the motor shaft is fixed in the box body through three groups of motor shaft bearings of the upper end, the middle part and the lower end, a motor shaft gear is arranged at the upper end of the motor shaft, the motor shaft gear is directly connected with an output shaft mechanism through a speed reducing mechanism, a threading hole group is arranged at the upper left corner in the box body, the threading hole group comprises a plurality of threading holes which are equidistantly arranged according to the arc surface of a shell of the box body, the wire harness at the bottom of the box body passes through the bottom of the box body and the inner wall of the box body and then penetrates out of the box body;

furthermore, the speed reducing mechanism of the utility model comprises a speed reducer bearing installed in the box body, a speed reducer shaft and a speed reducing gear set arranged on the speed reducer shaft, wherein the left end of the speed reducing gear set is meshed with the motor shaft gear;

furthermore, the output shaft mechanism of the utility model comprises an output shaft bearing and an output shaft which are arranged in the box body, the output shaft is meshed with the right end of the reduction gear set through a single output gear, a complex gear set with small beneficial effect is saved in the middle, the concentricity is greatly improved, and the friction heat and the noise are reduced;

furthermore, a positioning cavity is arranged on the right side of the speed reducing mechanism in the box body, the output shaft is arranged in the positioning cavity and is blocked by an oil seal, and the output shaft extends upwards out of the box body;

furthermore, the bottom of the box body of the utility model is also provided with an encoder;

further, in order to realize the function of slideing, the lower extreme of output shaft still be provided with and slide actuating mechanism, slide actuating mechanism include the spline housing with output shaft connection, the spline housing outside through isolator bearing fixedly connected with isolator.

The utility model has the advantages that: the defect that exists among the background art is solved, the utility model discloses an electric motor car speed reducer assembly has solved the problem explained in the background art, and the gear train is saved to the output shaft, the lug connection speed reducer, and the concentricity is good, save material, reduces the production of frictional heat and noise, and the whole inside wiring of pencil is arranged simultaneously, and is not only pleasing to the eye, further promotes complete machine life moreover, is worth promoting.

Drawings

Fig. 1 is a schematic structural view of a preferred embodiment of the present invention;

in the figure: 1. the motor comprises a box body, an iron core 2, a motor shaft 3, a wire harness 4, a motor shaft bearing 5, a motor shaft gear 6, a threading hole 7, a speed reducer bearing 8, a speed reducer shaft 9, a speed reducer gear set 10, an output shaft bearing 11, an output shaft 12, an output gear 13, a positioning cavity 14, an oil seal 15, an encoder 16, a spline housing 17, an isolator bearing 18 and an isolator 19.

Detailed Description

The invention will now be described in further detail with reference to the drawings and preferred embodiments. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

The utility model relates to an embodiment of electric motor car speed reducer assembly as shown in fig. 1, including box 1, box 1 in install iron core 2 and be located iron core 2 central motor shaft 3 and pencil 4, motor shaft 3 be fixed in through three motor shaft bearings 5 of upper end, middle part and lower extreme in box 1, the upper end of motor shaft 3 is provided with motor shaft gear 6, motor shaft gear 6 through reduction gears direct connection output shaft mechanism, box 1 in the upper left corner department be provided with the threading punch combination, the threading punch combination include a plurality of through wires holes 7 that set up according to the shell cambered surface equidistance of box 1, pencil 4 of box 1 bottom loops through box 1 bottom, box 1 inner wall and then from in the through holes 7 wear to the box 1 outside, realize the inside of pencil 4 and walk the line; the speed reducing mechanism comprises a speed reducer bearing 8 arranged in the box body 1, a speed reducer shaft 9 and a speed reducing gear set 10 arranged on the speed reducer shaft 9, wherein the left end of the speed reducing gear set 10 is meshed with the motor shaft gear 6; the output shaft mechanism comprises an output shaft bearing 11 and an output shaft 12 which are arranged in the box body 1, and the output shaft 12 is meshed and connected with the right end of the reduction gear set 10 through a single output gear 13; a positioning cavity 14 is arranged on the right side of the speed reducing mechanism in the box body 1, the output shaft 12 is arranged in the positioning cavity 14 and is sealed by an oil seal 15, and the output shaft 12 extends upwards out of the box body 1; the bottom of the box body 1 is also provided with an encoder 16, the lower end of the output shaft 12 is also provided with a sliding action mechanism, the sliding action mechanism comprises a spline sleeve 17 connected with the output shaft 12, and an isolator 19 is fixedly connected outside the spline sleeve 17 through an isolator bearing 18.

The output shaft 12 omits a gear set, is directly connected with a speed reducer, has good concentricity, saves materials, reduces the generation of frictional heat and noise, and simultaneously, the wiring arrangement inside the wire harness 4 is not only beautiful, but also further prolongs the service life of the whole machine.

While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

Claims

1. The utility model provides an electric motor car speed reducer assembly, includes box (1), box (1) in be equipped with iron core (2) and be located motor shaft (3) and pencil (4) of bottom of iron core (2) center, its characterized in that: motor shaft (3) be fixed in through three motor shaft bearing (5) of group of upper end, middle part and lower extreme in box (1), the upper end of motor shaft (3) is provided with motor shaft gear (6), motor shaft gear (6) through reduction gear lug connection output shaft mechanism, box (1) in upper left corner department be provided with the threading punch combination, the threading punch combination including a plurality of through wires hole (7) that set up according to the shell cambered surface equidistance of box (1), pencil (4) of box (1) bottom loop through box (1) bottom, box (1) inner wall and follow again through wires hole (7) are worn out extremely box (1) is outside.

2. The electric vehicle speed reducer assembly of claim 1, wherein: the speed reducing mechanism comprises a speed reducer bearing (8) arranged in the box body (1), a speed reducer shaft (9) and a speed reducing gear set (10) arranged on the speed reducer shaft (9), and the left end of the speed reducing gear set (10) is in gear meshing connection with the motor shaft (3).

3. The electric vehicle speed reducer assembly of claim 2, wherein: the output shaft mechanism comprises an output shaft bearing (11) and an output shaft (12) which are arranged in the box body (1), and the output shaft (12) is meshed and connected with the right end of the reduction gear set (10) through a single output gear (13).

4. The electric vehicle speed reducer assembly of claim 3, wherein: the gearbox is characterized in that a positioning cavity (14) is formed in the box body (1) and located on the right side of the speed reducing mechanism, the output shaft (12) is installed in the positioning cavity (14) and is blocked through an oil seal (15), and the output shaft (12) upwards extends out of the box body (1).

5. The electric vehicle speed reducer assembly of claim 1, wherein: the bottom of the box body (1) is also provided with an encoder (16).

6. The electric vehicle speed reducer assembly of claim 3, wherein: the lower end of the output shaft (12) is also provided with a sliding action mechanism, the sliding action mechanism comprises a spline sleeve (17) connected with the output shaft (12), and an isolator (19) is fixedly connected outside the spline sleeve (17) through an isolator bearing (18).