CN201466873U

CN201466873U - Change wheel hub motor with brush and electric vehicle

Info

Publication number: CN201466873U
Application number: CN2009200753829U
Authority: CN
Inventors: 范达康
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-07-28
Filing date: 2009-07-28
Publication date: 2010-05-12
Anticipated expiration: 2019-07-28

Abstract

The utility model relates to a change wheel hub motor with a brush and an electric vehicle, which can consider the speed and the energy saving simultaneously. In the change wheel hub motor with the brush, a supporting structure is fixedly connected with a supporting shaft; the motor is fixedly arranged relative to the supporting structure; a driving gear unit is supported by the supporting structure, can rotate relative to the supporting structure and is driven by the motor; a main shaft is used for outputting power, is sleeved on the supporting shaft and can rotate relative to the supporting shaft; a spline shaft is sleeved on the main shaft, and a one-way transmission device is arranged between the spline shaft and the main shaft; a driven gear unit is sleeved on the spline shaft and can be meshed with the driving gear unit by a plurality of transmission ratios; a shifting fork can slide along an upright column fixed on the supporting structure; and a flexible element is connected with the shifting fork, wherein, under the stirring of the shifting fork driven by the flexible element, the driven gear unit is meshed with the driving gear unit optionally according to one transmission ratio in the plurality of transmission ratios.

Description

Brush shift wheel hub motor and electric motor car are arranged

Technical field

The utility model relates to a kind of wheel hub motor that is used for electric motor car.

Background technology

Existing wheel hub motor is specially for electric motor car designs, and comprising electric bicycle and electric wheel-chair vehicle etc., wheel hub motor is divided into two big classes, and a kind of appellation has brush wheel hub motor, another kind of appellation brushless hub electric motor.It is to adopt gear to reduce the speed back through two to drive the wheel running that brush wheel hub motor is arranged, and another kind is brushless, and it directly drives by battery electric power in form without decelerator.

The power supply of battery vehicle is very limited, thus the designer when design electric motor car speed per hour, must consider starting, against the wind, power consumption factor such as upward slope, and then on speed, maximize, determine just to determine speed per hour at last by the speed ratio of gear.Because people wish to maximize on speed, speed per hour just constantly improves with the method that improves cell voltage in existing manufacturer, yet there is the problem that can not effectively utilize electric energy in this way.

The utility model content

The purpose of this utility model is to provide a kind of have brush shift wheel hub motor and electric motor car, realizes effectively utilizing electric energy by shifted.

For realizing aforementioned purpose, of the present utility model have a brush shift wheel hub motor, comprises motor and bolster, is characterized in comprising supporting construction, the driving gear unit, main shaft, splined shaft, driven gear unit, be used to stir shift fork and the flexible element that driven duplicate gear moves on splined shaft, wherein, supporting construction is fixedlyed connected with bolster, and motor this supporting construction relatively fixedly installs; The driving gear unit can be rotated relative to supporting construction by support construction supports, and by motor-driven; Main shaft is used for outputting power, is enclosed within on the bolster, can rotate relative to bolster; Hub splines and is provided with unidirectional transmission between the main shaft on main shaft; The driven gear unit is enclosed within on the splined shaft, can mesh with a plurality of gearratios with the driving gear unit; Shift fork can slide along the column that is fixed on the supporting construction; Flexible element connects shift fork; Wherein, the driven gear unit optionally meshes according to a gearratio in described a plurality of gearratios with the driving gear unit under the stirring of the shift fork that flexible element drives.

Described have a brush shift wheel hub motor, and its further characteristics are that flexible element is drawn from the centre bore of bolster after being arranged on the assembly pulley guiding on the supporting construction.

Described have a brush shift wheel hub motor, and its further characteristics are, the driving gear unit is a duplicate gear initiatively.

Described have a brush shift wheel hub motor, and its further characteristics are that the driven gear unit is driven duplicate gear.

Described have a brush shift wheel hub motor, and its further characteristics are that motor drives the driving gear unit by a gear drive.

Described have a brush shift wheel hub motor, and its further characteristics are, also comprises shell, and main shaft is fixedlyed connected with this housing.

Described have a brush shift wheel hub motor, its further characteristics are, supporting construction is a supporting disk, and the flexible element connection is positioned at the perforation of passing this supporting disk behind the shift fork of this supporting disk one side, then through drawing from the centre bore of bolster behind the assembly pulley that is positioned at this supporting disk opposite side.

Described have a brush shift wheel hub motor, and its further characteristics are that flexible element is steel wire rope or chain.

Electric motor car of the present utility model, be characterized in comprising have aforementioned arbitrary characteristics the brush shift wheel hub motor arranged, there are the bolster of brush shift wheel hub motor and the caudal furca of this electric motor car to be connected, the main shaft of brush shift wheel hub motor and the wheel hub relative fixed setting of this electric motor car trailing wheel are arranged.

When the pulling flexible element, shift fork is stirred the driving gear unit, the ratio changing of driving gear unit and driven gear unit, thereby the power of motor output is also changed, thereby the user can be according to starting, against the wind, varying environments such as upward slope, cruising select suitable gear, thereby taken into account speed and energy-conservation consideration, like this can be so that increase the useful life of the storage battery of battery vehicle.

Aforementioned purpose of the present utility model, technical scheme and advantage are with accompanying drawings and embodiment are described further in the back.

Description of drawings

Fig. 1 is the partial sectional view that the brush shift wheel hub motor is arranged of the present utility model, and wherein this has the brush shift wheel hub motor to be in quick shelves.

Fig. 2 is the partial sectional view that the brush shift wheel hub motor is arranged of the present utility model, and wherein this has the brush shift wheel hub motor to be in shelves at a slow speed.

Fig. 3 is the partial sectional view that the brush shift wheel hub motor is arranged of the present utility model, has shown that shift fork is adjusted to quick shelves with mobile duplicate gear.

Fig. 4 is the partial sectional view that the brush shift wheel hub motor is arranged of the present utility model, has shown that shift fork is adjusted to shelves at a slow speed with mobile duplicate gear.

Fig. 5 is the front view after supporting construction and the bolster combination.

Fig. 6 is the right side view after supporting construction and the bolster combination.

Fig. 7 is the left side view that the spindle assemblies of brush shift wheel hub motor is arranged.

Fig. 8 be shift fork, fixedly behind duplicate gear, the mobile duplicate gear, the front view that is assembled together of spindle assemblies.

Fig. 9 is the right side view of the assembly after the assembling shown in Figure 8.

Embodiment

As Fig. 1.Shown in 2, of the present utility model have the brush shift wheel hub motor to comprise housing 30, tray 31, active duplicate gear 1 and driven duplicate gear 6.Initiatively duplicate gear 1 is supported by gear house 2, and gear house 2 is fixed on the tray 31, and tray 31 is arranged in the housing 30, and bolster 8 fixedly installs relatively.Initiatively duplicate gear 1 can rotate on gear clamshell 2, and initiatively duplicate gear 1 has isolated gear 110 and gear 111, and the radius of gear 111 is greater than the radius of gear 110, and gear 110 is connected by gear shaft 112 with gear 111.Driven duplicate gear 6 is enclosed within on the splined shaft 5 and can moves on splined shaft 5.Driven duplicate gear 6 comprises gear 610 and gear 611, and the radius of gear 610 is less than the radius of gear 611, and gear 610 and gear 611 are to form on a minor axis.Gear 610 can mesh with gear 111, and gear 611 can mesh with gear 110.Gear 610 and gear 111 position engaged be shelves fast, and gear 611 and gear 110 position engaged are at a slow speed grade.As shown in Figure 5, gear 20 is (not shown in the diagram by motor, in apparatus lower part shown in Figure 1) drive, gear 20 and gear 18 engagements, gear 18 and initiatively duplicate gear 1 coaxial setting, thereby, behind the electric motor starting, power is passed to gear 18, is passed to initiatively duplicate gear 1 again from gear 20, and initiatively duplicate gear 1 drives driven duplicate gear 6 rotations again, and driven duplicate gear 6 is driving splined shaft 5 rotations.

As shown in Figure 8, splined shaft 5 is nested with on main shaft 50, bolster 8 is to pass main shaft 50. as shown in Figure 1, 2, main shaft 50 also for example is threaded with housing 30 is fixedly connected. and housing 30 is with after wheel is connected, just can drive wheels rotate, be provided with unidirectional transmission between splined shaft 5 and the main shaft 50, this unidirectional transmission can adopt the unidirectional transmission in the commercially available battery vehicle wheel hub motor, this unidirectional transmission can be from splined shaft 5 to main shaft 50 direction carry out transmission, after stopping motor power is provided, vehicle can continue to rely on coast like this.

As shown in Figure 3 and Figure 4, the both sides of the radial symmetric of driven duplicate gear 6 are respectively arranged with shift fork 7, and shift fork 7 is enclosed within on the column 71, and column 71 is fixed on the supporting disk 81, below the shift fork 7, also be equipped with back-moving spring 72 on the column 71, shift fork 7 can slide on column 71.Two shift forks 7 are connected with flexible element 73 respectively, flexible element 73 passes supporting disk 81 after shift fork 7 is drawn, simultaneously with reference to Fig. 7, flexible element 73 is walked around the fixed pulley 12 that is arranged on the supporting disk 81 when passing supporting disk 81, and walk around the fixed pulley 9 that is arranged on supporting disk 81 back sides after turning to, each flexible element 73 is combined into one flexible element 73 after walking around fixed pulley 9, after this flexible element 73 is walked around the fixed pulley 13 that is arranged on supporting disk 81 back sides again, as shown in Figure 5, enter into the centre bore of bolster 8, bolster 8 and supporting disk 81 are fixedly connected, get back to Fig. 3 and Fig. 4, flexible element 73 enters bolster 8 backs and draws from the end of bolster 8, and can link to each other with the power controller of vehicle through behind the fixed pulley 15.When the power controller of vehicle spurs flexible element 73 by steel wire according to the direction shown in the arrow among Fig. 3, Fig. 4, can successfully realize shift.It can also be seen that from Fig. 6 and Fig. 9 initiatively duplicate gear 1, two shift forks 7 are along the circumference of driven duplicate gear 6, two shift forks 7 are in the radial symmetric setting, and initiatively duplicate gear 1 is to be provided with in the positions that turn over 90 degree along a shift fork 7.

Get back to Fig. 1 and Fig. 2, be assembled to vehicle for example during electric motor car, bolster 8 can be inserted with the tail at electromobile frame rear portion and be connected.Bolster 8 generally can not rotate in the wheel rolling process.

Claims

1. one kind has the brush shift wheel hub motor, comprises motor and bolster, it is characterized in that comprising:

Supporting construction is fixedlyed connected with bolster, and motor this supporting construction relatively fixedly installs;

The driving gear unit by support construction supports, can rotate relative to supporting construction, and by motor-driven;

Main shaft is used for outputting power, is enclosed within on the bolster, can rotate relative to bolster;

Splined shaft is enclosed within on the main shaft, and is provided with unidirectional transmission between the main shaft;

The driven gear unit is enclosed within on the splined shaft, can mesh with a plurality of gearratios with the driving gear unit;

Be used to stir the shift fork that driven duplicate gear moves on splined shaft, can slide along the column that is fixed on the supporting construction; And

Flexible element connects shift fork;

Wherein, the driven gear unit optionally meshes according to a gearratio in described a plurality of gearratios with the driving gear unit under the stirring of the shift fork that flexible element drives.

2. as claimed in claim 1 have a brush shift wheel hub motor, it is characterized in that, flexible element is drawn from the centre bore of bolster after being arranged on the assembly pulley guiding on the supporting construction.

3. as claimed in claim 1 have a brush shift wheel hub motor, it is characterized in that, the driving gear unit is a duplicate gear initiatively.

4. as claimed in claim 1 have a brush shift wheel hub motor, it is characterized in that the driven gear unit is driven duplicate gear.

5. as claimed in claim 1 have a brush shift wheel hub motor, it is characterized in that, motor drives the driving gear unit by a gear drive.

6. as claimed in claim 1 have a brush shift wheel hub motor, it is characterized in that also comprise shell, main shaft is fixedlyed connected with this housing.

7. as claimed in claim 1 have a brush shift wheel hub motor, it is characterized in that, supporting construction is a supporting disk, and the flexible element connection is positioned at the perforation of passing this supporting disk behind the shift fork of this supporting disk one side, then through drawing from the centre bore of bolster behind the assembly pulley that is positioned at this supporting disk opposite side.

8. as claimed in claim 1 have a brush shift wheel hub motor, it is characterized in that flexible element is steel wire rope or chain.

9. electric motor car, it is characterized in that comprising as each claim in the claim 1 to 8 is described the brush shift wheel hub motor arranged, there are the bolster of brush shift wheel hub motor and the caudal furca of this electric motor car to be connected, the main shaft of brush shift wheel hub motor and the wheel hub relative fixed setting of this electric motor car trailing wheel are arranged.