CN204465253U

CN204465253U - With the motor of the electric vehicle integral structure of motor robust structure

Info

Publication number: CN204465253U
Application number: CN201520134441.0U
Authority: CN
Inventors: 梁昌勇; 李显平; 魏建平
Original assignee: GUANGDONG HEPU POWER TECHNOLOGY CO LTD
Current assignee: Guangdong Universal Power Ltd By Share Ltd; Hepu Power Co ltd
Priority date: 2015-03-10
Filing date: 2015-03-10
Publication date: 2015-07-08
Anticipated expiration: 2025-03-10

Abstract

With the motor of the electric vehicle integral structure of motor robust structure, comprise motor, reduction box, it is characterized in that form reduction box housing on be provided with bearing chamber, a wherein sidewall of bearing chamber is provided with dead eye, the other end being provided with oil sealing motor shaft in dead eye stretches into in bearing chamber through the bearing in dead eye, the axle head of the other end of motor shaft is fixed with pinion, the gears meshing of pinion and reduction box, the column chamber of through rear end cap seam that the arranged outside of a wherein sidewall of bearing chamber has die cavity and is connected with die cavity, the other end of stator core in motor abuts against on seam, through rear end cap, in the screw rod of stator core spins and is fixed on set by the external port of column chamber screw.The utility model compared with the prior art, have compact conformation, noise few, be not easy accumulation mismachining tolerance, advantage that volume is little.

Description

With the motor of the electric vehicle integral structure of motor robust structure

Technical field:

The utility model relates to a kind of electric motor for electric vehicle, particularly reduction box and motor integrative-structure motor.

Background technology

At present, the reduction box of electric automobile and motor are all Split type structures, reduction box and motor are separate parts, auto vendor is all separately buying, Fig. 1 is shown in by primary structure, motor output shaft is splined shaft 1, electric motor end cap is processed with seam 2, seam 2 is concentric with splined shaft, motor end face is also processed with installation screw 3, during installation, is inserted by motor spline shaft in reduction box splined hole 4, electric motor end cap seam 2 coordinates with reduction box seam 5, is axially fixed on reduction box by motor through motor screw 3 with screw 6.During work, motor spline shaft drives reduction box pinion, realizes slowing down, increase moment of torsion object under gears meshing effect.This Split type structure Problems existing is as follows:

1, motor spline shaft coordinates the impact due to gap with gear box spline housing, and noise is large:

2, there is accumulation mismachining tolerance in motor spline shaft and motor end face seam, very easily causes interference;

3, motor is screwed on reduction box, there is the risk loosened;

4, electric motor end cap and the effect of reduction box casing bilayer thickness, makes complete machine axial length large, is unfavorable for that Integral automobile space is arranged.

Summary of the invention

The utility model object is just to provide the motor that a kind of compact conformation, noise are few, be not easy accumulation mismachining tolerance, the electric vehicle integral structure with motor robust structure that volume is little.

The utility model object is achieved in that

Comprise the epitrochanterian motor shaft forming motor, with the stator core of winding, rear end cap with seam and the reduction box with housing, one end of motor reel is connected on the bearing on rear end cap, its special feature be form reduction box housing on be provided with bearing chamber, a wherein sidewall of bearing chamber is provided with dead eye, bearing is provided with in dead eye, the other end of motor reel stretches into in reduction box through the bearing in dead eye, and be connected with the pinion in reduction box, pinion is fixed on the end of motor reel, the gears meshing of pinion and reduction box, the column chamber of through rear end cap seam that the arranged outside of a wherein sidewall of bearing chamber has die cavity and is connected with die cavity, die cavity and column chamber connecting place are provided with seam, stator core in motor coordinates with column chamber and is arranged in column chamber, , in spinning be fixed on set by the external port of column chamber screw through the screw rod of rear end cap.

Oil enveloping structure or annular mechanical seal structure is provided with in dead eye.

beneficial effect

1, there is not motor spline shaft and gear shaft spline fitted clearance issues, just there is no the noise that spline gaps brings yet;

2, axle need not process spline, and cost is low;

3, install simply, first reduction box can be assembled and refill stator, rotor;

4, motor eliminates front end housing, and cost reduces, and also have compressed axial space.

Accompanying drawing explanation

Fig. 1 is the structure chart of prior art;

Fig. 2 is structure chart of the present utility model;

Fig. 3 is the left view of Fig. 2.

In Fig. 2,3, sequence number illustrates: the dead eye 16 on screw 3b, the rear end cap edge through hole 8a at the bearing 9 on the bearing 5 on the seam 3a of motor shaft 1, pinion 2, die cavity 3, die cavity external port, oil sealing 4, bearing chamber 15, winding 6, stator core 7, rear end cap 8, rear end cap, screw rod 10, die cavity edge, the seam 8b of rear end cap, motor 11, rotor 12, housing 13, reduction box 14, bearing chamber 15, bearing chamber, gear 17, column chamber 18.

Embodiment:

Now in conjunction with the accompanying drawings and embodiments the utility model is described in further detail:

As Fig. 2, shown in 3, the utility model comprises the motor shaft 1 on the rotor 12 forming motor 11, with the stator core 7 of winding 6, rear end cap 8 with seam 8b and the reduction box 14 with housing 13, wherein one end of the motor shaft 1 of motor 11 is connected on the bearing 9 on rear end cap 8, its special feature be form reduction box 14 housing 13 on be provided with bearing chamber 15, a wherein sidewall of bearing chamber 15 is provided with dead eye 16, the inner side of dead eye is provided with oil sealing 4, arranged outside has bearing 5, the other end of the motor shaft 1 of motor 11 stretches into in reduction box through bearing 5 and oil sealing 4, the axle head of the other end of motor shaft 1 is fixed with pinion 2, pinion 2 engages with the gear 17 of reduction box 14, the column chamber 18 of through rear end cap seam 8b that the arranged outside of a wherein sidewall of bearing chamber 15 has die cavity 3 and is connected with die cavity 3, die cavity 3 and column chamber 18 connecting place are provided with seam 3a, motor 11 stator core 7 coordinates with column chamber 18 and is arranged in column chamber 18, in spinning be fixed on set by the external port of column chamber 18 screw 3b through the screw rod 10 of rear end cap 8 edge through hole 8a.

The front and back position of oil sealing 4, bearing 5 can exchange, and loop configuration mechanical seal also can be adopted to substitute oil sealing 4.

Bearing chamber 15, die cavity 3, column chamber 18 are that overall processing is out together.

operation principle

During installation, first oil sealing 4 is installed, then stator core 7 is pressed into column chamber 18, stator core 7 is fixedly connected with reduction box 14 housing 13, again the rotor 12 being pressed into bearing 5 and pinion 2 is entered in stator core 7, when entering stator core 7, pinion 2 engages with gear 17 through oil sealing 4, bearing 5 enters bearing chamber 15 simultaneously, place rear end cap 8, rear end cap 8 seam 8b is coordinated with column chamber 18, finally with screw rod 10, rear end cap 8 is compressed, make rear end cap 8 axially loaded fastening, during energising, rotor 12 rotates together with pinion 2, the engagement of pinion 2 driven gear 17 realizes slowing down, increase moment of torsion object.

Claims

1. with the motor of the electric vehicle integral structure of motor robust structure, comprise the epitrochanterian motor shaft forming motor, with the stator core of winding, rear end cap with seam and the reduction box with housing, wherein one end of the motor shaft of motor is connected on the bearing on rear end cap, it is characterized in that form reduction box housing on be provided with bearing chamber, a wherein sidewall of bearing chamber is provided with dead eye, bearing is provided with in dead eye, the other end of the motor shaft of motor stretches into in reduction box through the bearing in dead eye, be connected with reduction box internal pinionmw, pinion is fixed on motor shaft ends, the gears meshing of pinion and reduction box, the column chamber of through rear end cap seam that the arranged outside of a wherein sidewall of bearing chamber has die cavity and is connected with die cavity, die cavity and column chamber connecting place are provided with seam, stator core in motor coordinates with column chamber and is arranged in column chamber, in spinning be fixed on set by the external port of column chamber screw through the screw rod of rear end cap.

2. the motor of the electric vehicle integral structure with motor robust structure according to claim 1, is characterized in that in dead eye, be provided with oil enveloping structure or annular mechanical seal structure.

3. the motor of the electric vehicle integral structure with motor robust structure according to claim 1 and 2, is characterized in that bearing chamber, die cavity, column chamber is that overall processing is out together.