CN208119354U - A kind of electric vehicle of built-in motor - Google Patents

Abstract

The utility model belongs to electric automobiles,Disclose a kind of electric vehicle of built-in motor,It solves the problems, such as to collide between driven pulley and core wheel when rear-wheel vibrates and deforms and damage,Its technical solution be include vehicle frame,Chain stay mechanism afterwards,Rear-wheel and driving mechanism,Vehicle frame rear portion is hinged with rear chain stay mechanism,Driving mechanism includes being mounted on the built-in motor of the inside of rear chain stay device front end and putting down the back axle for looking into component rear end and the rear-wheel being socketed in outside back axle after being mounted on,Rear-wheel includes vehicle rim,Driven torus is fixed on the one side of vehicle rim,Built-in motor includes driving shaft and the driving wheel for being mounted on driving shaft end,Driving mechanism further includes the transmission belt being socketed on the outside of driving wheel and driven torus for rotating synchronously the two simultaneously,Existing driven pulley is substituted using with the fixed driven torus of wheel rim,It avoids and is damaged caused by being hit under vibration.

Description

A kind of electric vehicle of built-in motor

Technical field

The utility model belongs to electric automobiles, in particular to a kind of electric vehicle of built-in motor.

Background technique

Electric vehicle is exactly with electric power for driving in brief.Using electric power as the car of the energy.Electric vehicle classification electric vehicle is pressed Type point can be divided into:Electric bicycle, battery-operated motor cycle, electric car, electro-tricycle, lithium battery motor-car, fuel oil power-assisted Dual-purpose electric vehicle.Electric vehicle described in the utility model refers to electric bicycle, battery-operated motor cycle.

Motor is installed by the way of built-in motor in existing electric vehicle, if Authorization Notice No. is in CN206871300U State's patent " a kind of novel electric vehicle or the automobile-used built-in motor component of electric motorcycle ", including vehicle frame, vehicle frame front end are provided with motor, Vehicle frame rear end is provided with drive wheel assemblies, and drive wheel assemblies include wheel shaft, and wheel shaft outer sheath is equipped with core wheel, the main part of core wheel It is set with wheel hub, extension is set with driven pulley；Motor shaft sleeve is equipped with driving pulley, and driving pulley passes through toothed belt transmission Connect driven pulley；Preset waist hole on vehicle frame is stretched out at wheel shaft both ends, and axle ends are provided with position adjusting mechanism, and position is adjusted Mechanism is fixedly connected with vehicle frame.

Disadvantage is that electric vehicle traveling is under bumpy road or other scenes, rear-wheel vibrates, driven pulley It collides between core wheel and deforms and damage.

Utility model content

The purpose of this utility model is in view of the deficiencies of the prior art, to provide a kind of electric vehicle of built-in motor, is used Existing driven pulley is substituted with the fixed driven torus of wheel rim, avoids and is damaged caused by being hit under vibration.

The above-mentioned technical purpose of the utility model technical scheme is that：

A kind of electric vehicle of built-in motor, including vehicle frame, rear chain stay mechanism, rear-wheel and driving mechanism, the vehicle frame rear portion It is hinged with rear chain stay mechanism, the driving mechanism includes being mounted on built-in motor and the installation of the inside of rear chain stay device front end In the rear flat back axle for looking into component rear end and the rear-wheel being socketed in outside back axle, the rear-wheel includes vehicle rim, and the one of the vehicle rim Driven torus is fixed on side, the built-in motor includes driving shaft and the driving wheel for being mounted on driving shaft end, the driving Mechanism further includes the transmission belt being socketed on the outside of driving wheel and driven torus for rotating synchronously the two simultaneously.

By using above-mentioned technical proposal, after built-in motor starting, driving wheel rotation by transmission belt drive driven torus with Rear-wheel rotate and then drives electric vehicle；Electric vehicle travels under bumpy road or other scenes, and rear-wheel vibrates, driven Ring is not abutted with back axle or core wheel, is avoided driven torus from mutually hitting with back axle, is prevented driven torus from damaging, and the axis of driven torus is kept The heart is overlapped with rear axis, while also mitigating driven ring quality, saves cost.

Preferably, the driven torus includes dismountable inner ring and outer rings, and the inner ring is fixed with rear-wheel, the biography The inside of dynamic band and the outside of outer ring, which can match to merge, drives outer ring rotation.

By using above-mentioned technical proposal, deterioration can occur for transmission belt and driven torus in driving mechanism use process, Outer ring is only needed replacing when replacing to the driven torus after abrasion, without separating inner tube from rear-wheel, guarantees driven torus and hind axle To alignment, avoid driven torus from integrally reinstalling the axle center correction work of needs, it is time saving and energy saving, be convenient for changing

Preferably, the rear-wheel includes vehicle rim and tire, if one lateral edge vehicle rim of the vehicle rim it is circumferentially distributed have it is solid Determine block, each fixed block is axially provided with fixation hole along vehicle rim, on the driven torus there are also it is several can be a pair of with fixation hole one Quasi- mounting hole is installed with the fixing bolt being threadedly coupled with fixation hole in the mounting hole and fixation hole.

By using above-mentioned technical proposal, driven torus is parallel with rear-wheel and is spaced certain interval between the two, thus keeps away Exempt to occur to scrape abrasion between tire and driven torus or transmission belt.

Preferably, the fixed hole position in inner ring, swell on the lateral surface of inner ring by the outside of the fixation hole The protrusion of bar shaped is formed, the mating groove that can be bonded with protrusion is had on the inside of the outer ring.

By using above-mentioned technical proposal, when outer ring socket is outside interior ring, fit on the inside of mating groove with convex surfaces, i.e., The opposite of outer ring and inner ring can be limited to circumferentially rotate, it is simple and reliable for structure, it can avoid opening up in outer ring or inner ring and be chiefly used in limiting The opposite slot circumferentially rotated of both systems or hole, avoid outer ring structure strength reduction, reduce the possibility of outer ring damage, to extend outer Ring service life.

Preferably, for the fixed hole position in inner ring, the fixing bolt includes the spiral shell being threadedly coupled with fixation hole Line section and the end that screws for screwing, while the fixing bolt is divided into positioning bolt and caging bolt, the positioning bolt It screws end only to abut with inner ring, the caging bolt screws end and can abut simultaneously with inner ring, outer ring, the end face of the fixed block It can be abutted against with the side of outer ring.

By using above-mentioned technical proposal, positioning bolt makes the two axle center for fixing and positioning inner ring and vehicle rim axle center Be overlapped, positioning bolt do not dismantle under inner ring or the non-damaged condition of vehicle rim, the two sides of inner ring and outer rings be fixed respectively block and The end that screws of caging bolt abuts fixation, limits the axial position of outer ring, and structure is simple, reduces the cost of additional fixing piece, with And can avoid opening up in outer ring or inner ring and be chiefly used in the slot or hole that both limitations move to axial, avoid inner ring structural strength It reduces, the possibility of inner ring damage is reduced, to extend inner ring service life.

Preferably, each fixed-block-architecture (FBA) is all the same and its fixed block tilts towards the outside of vehicle rim and extends, The axial parallel vehicle rim of the fixation hole is axial.

By using above-mentioned technical proposal, when rear-wheel vibrates, due to inertia effects and vehicle rim and non-integral driven There is lag in its vibration of ring, driven torus is deviated relative to the generation Relative Vibration of vehicle rim, thus in fixed block compared with the vibration of vehicle rim When by pulling force towards vehicle rim center, Light deformation can occur for fixed block, play damping action and slow down driven torus with respect to vehicle rim Generation Relative Vibration offset, reduce driven torus and vehicle rim shaft core position deviation.

Preferably, the inner band distributional drive tooth of the transmission belt, the outside of the driving wheel has and driving cog The driving tooth of engagement, the outside of the driven torus have the driven tooth with transmission tooth engagement.

By using above-mentioned technical proposal, after driving cog and driving tooth or driven tooth engagement, driving cog and driving tooth or from The side of movable tooth is affixed, and forced area is big, and transmission efficiency is high.

Preferably, the outside of the driven torus has two limits positioned at driven tooth two sides and coaxial with driven torus Ring.

By using above-mentioned technical proposal, transmission belt is limited in the outside of driven torus socket position, prevents from being driven Band is slipped with driven torus.

Preferably, including flexible damper mechanism, the lower end of the flexible damper mechanism is articulated with rear chain stay mechanism Rear end, the upper end are hinged with vehicle frame.

By using above-mentioned technical proposal, without considering the electric vehicle shock damage that vibration occurs for rear-wheel to driven torus when driving Wound, the lower end direct neighbor rear-wheel setting for the damper mechanism that stretches, directly carries out damping vibration attenuation, Optimization Vibration side to vibration source rear-wheel Case improves effectiveness in vibration suppression.

In conclusion the utility model has the advantages that：

1. electric vehicle travel under bumpy road or other scenes, rear-wheel vibrates, driven torus not with back axle or wheel Core abuts, and avoids driven torus from mutually hitting with back axle, prevents driven torus from damaging, and keeps axle center and the rear axis weight of driven torus It closes；

2. the driven torus after pair abrasion only needs replacing outer ring when replacing, without separating inner tube from rear-wheel, guarantee driven Ring is aligned with rear axis, and driven torus is avoided integrally to reinstall the axle center correction work of needs, time saving and energy saving；

3. outer ring socket is outside interior ring, fit on the inside of mating groove with convex surfaces, the two sides point of inner ring and outer rings The end that screws for not being fixed block and caging bolt abuts fixation, limits simultaneously fixed inner ring and outer rings, avoids opening in outer ring or inner ring It is chiefly used in both fixed slot or hole if crossing, avoids the reduction of the structural strength of outer ring and inner ring, the possibility of damage is reduced, to prolong The service life of long driven torus；

4. without considering that vibration occurs electric vehicle for rear-wheel to the impact damage of driven torus when driving, stretches under damper mechanism The setting of direct neighbor rear-wheel is held, damping vibration attenuation directly is carried out to vibration source rear-wheel, Optimization Vibration scheme improves effectiveness in vibration suppression.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of electric vehicle；

Fig. 2 is the explosive view of rear-wheel；

Fig. 3 is partial enlarged view of the Fig. 2 at Fig. 1；

Fig. 4 is the structural schematic diagram of driving mechanism；

Fig. 5 is the explosive view one of driven torus；

Fig. 6 is the explosive view two of driven torus；

Fig. 7 is the structural schematic diagram of flexible damper mechanism.

Detailed description of the invention：1, vehicle frame；2, front-wheel；3, rear chain stay mechanism；31, front bar；32, side fork；321, rolling bearing；4, Back axle；5, rear-wheel；51, core wheel；511, shaft hole；52, spoke；53, vehicle rim；531, fixed block；5311, bearing surface；5312, Fixation hole；54, tire；6, driving mechanism；61, built-in motor；611, driving shaft；612, motor body；613, driving wheel； 6131, driving tooth；62, transmission belt；621, driving cog；63, driven torus；631, inner ring；6311, mounting hole 6312, protrusion；632, Outer ring；6321, mating groove；6322, driven tooth；6323, stop collar；633, fixing bolt；633a, positioning bolt；633b, limit Bolt；6331, thread segment；6332, end is screwed；7, stretch damper mechanism；71, dashpot；711, locating part；72, bullet is resetted Spring.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

As shown in Fig. 1, a kind of electric vehicle of built-in motor comprising vehicle frame 1, rear chain stay mechanism 3, front-wheel 2, rear-wheel 5, Driving mechanism 6 and flexible damper mechanism 7.The front end of front-wheel 2 installation and vehicle frame 1.Before chain stay mechanism 3 includes front bar 31 and is located at afterwards The side fork 32 at 31 both ends of bar, front bar 31 and the rear end of vehicle frame 1 are hinged.The front end of two sides fork 32 and the both ends of front bar 31 are solid It is fixed, while installation position is equipped between the front end of two sides fork 32.The rear end of two sides fork 32 is fixed with back axle 4, and rear-wheel 5 is installed On back axle 4.

As shown in Fig. 2, rear-wheel 5 includes tire 54, vehicle rim 53, core wheel 51 and several spokes 52 from the outside to the core.Core wheel 51 It is in the form of a column, center is provided with the shaft hole 511 passed through for back axle 4.Vehicle rim 53 is annular in shape, and core wheel 51 is through in vehicle rim 53, spoke Item 52 surrounds the axle center of shaft hole 511 and is radially extended along shaft hole 511 to connect the outside of the inside of vehicle rim 53 and core wheel 51, It fixes vehicle rim 53 and core wheel 51 and keeps vehicle rim 53 and shaft hole 511 coaxial.

The annular edge of the side of vehicle rim 53 has several fixed blocks 531 along upper, and fixed block 531 is equal around the axle center of vehicle rim 53 Even distribution, the quantity of fixed block 531 can according to the actual situation depending on, 531 quantity of fixed block is six herein.

As shown in Fig. 3,531 structure of fixed block is identical, extends backwards to vehicle rim 53 and tilts to the outside of vehicle rim 53.Gu Determine block 531 far from vehicle rim 53 end face be bearing surface 5311, the bearing surface 5311 of fixed block 531 in the same plane and with turn The axis perpendicular of axis hole 511.There are also the fixation hole 5312 in axial parallel shaft hole 511 on bearing surface 5311, in fixation hole 5312 Side has internal screw thread.

As shown in Fig. 4, driving mechanism 6 includes built-in motor 61, transmission belt 62 and driven torus 63.Built-in motor 61 includes Motor body 612 and driving shaft 611, are mounted in installation position.One end of motor body 612 and the inside of side fork 32 are solid Fixed, fixed form can be to be bolted, be clamped depending on actual conditions.The inside of other side fork 32 is in installation position Position has rolling bearing 321, and driving shaft 611 is pierced by from the other end of motor and is inserted into rolling bearing 321.Driving shaft 611 Outside is further fixed on driving wheel 613, and the outside of driving wheel 613 is evenly distributed with driving tooth 6131.

As shown in Fig. 5, driven torus 63 includes inner ring 631, outer ring 632 and the fixing bolt 633 to socket-connect.Inner ring 631 diameter is close with the diameter of vehicle rim 53, and two side rings are in a ring and perpendicular with its axle center.The side of 631 annular of inner ring On be provided with several fixation holes 5312 through inner ring 631, fixation hole 5312 is uniformly distributed around the axle center of inner ring 631, quantity It is equal with 6311 quantity of mounting hole and can be aligned one by one with mounting hole 6311.The outside of fixation hole 5312 is in inner ring 631 simultaneously Protuberance forms the protrusion 6312 of bar shaped on lateral surface.

The outside of outer ring 632 with equally distributed driven tooth 6322 and two be located at 6322 two sides of driven tooth and with it is driven The coaxial stop collar 6323 of ring 63.The inside diameter of outer ring 632 is equal with the outer diameter of inner ring 631, and the inside of outer ring 632 has The mating groove 6321 equal with 5312 quantity of fixation hole.The inside of mating groove 6321 is matched with its convex surface, when outer ring 632 Be socketed in inner ring 631 it is outer when, the inside of mating groove 6321 fits with 6312 surfaces of protrusion, can limit outer ring 632 and inner ring 631 It is opposite to circumferentially rotate.The two sides of outer ring 632 are similarly the side and perpendicular with the axle center of outer ring 632 of annular.

As shown in attached drawing 5 and attached drawing 6, fixing bolt 633 includes thread segment 6331 and screws end 6332, spiral shell for what is screwed Line section 6331 can run through and be meshed with the internal screw thread in fixation hole 5312.Fixing bolt 633 divides for positioning bolt 633a simultaneously With caging bolt 633b.Positioning bolt 633a screw end 6332 compared with caging bolt 633b to screw end 6332 small, only can be with Inner ring 631 abuts, and is used to fix and position inner ring 631 and 53 axle center of vehicle rim, is overlapped the two axle center, positioning bolt 633a exists It is not dismantled under inner ring 631 or the non-damaged condition of vehicle rim 53.Caging bolt 633b screw end 6332 can be with inner ring 631, outer ring 632 It abuts simultaneously.The end face of fixed block 531 can be abutted against with the side of outer ring 632.When fixing bolt 633 and fixation hole 5312 are tightened When, inner ring 631 and outer side can fit simultaneously with bearing surface 5311 and abut, and then the two sides of inner ring 631 and outer ring 632 The end 6332 that screws for being fixed block 531 and caging bolt 633b respectively abuts fixation, the axial direction of fixed inner ring 631 and outer ring 632 Position.

Cooperate from there through mating groove 6321 and protrusion 6312, bearing surface 5311 and caging bolt 633b's screws end 6332 Abut and fix, realize and limit simultaneously fixed inner ring 631 and outer ring 632, avoid outer ring 632 or inner ring 631 opened up be chiefly used in it is solid Both fixed slot or hole avoids the reduction of the structural strength of outer ring 632 and inner ring 631, the possibility of damage is reduced, to extend driven The service life of ring 63.

As shown in Fig. 4,62 1 end cap of transmission belt covers in the outside of driving wheel 613, another end cap in driven torus 63 Outside and between two stop collars 6323.Transmission belt 62 it is interior with can the driving cog that is meshed of driving tooth 6131 and driven pond 621。

As shown in Fig. 7, the damper mechanism 7 that stretches is the prior art, can select according to the actual situation, select vibration damping herein Oil cylinder 71 and reset spring 72.The piston rod of dashpot 71 is upward and hinged with vehicle frame 1, the cylinder body of dashpot 71 and side The rear end of fork 32 is hinged.The piston rod end of dashpot 71 is further fixed on locating part 711, and 72 sets of reset spring in piston Outside bar.One end of reset spring 72 compresses cylinder body, and the other end abuts locating part 711.Thus stretching damper mechanism 7 can be direct Damping vibration attenuation is carried out to rear-wheel 5.

The working principle of the utility model：

After built-in motor 61 starts, the rotation of driving wheel 613 drives driven torus 63 and rear-wheel 5 to be rotated by transmission belt 62 And then drive electric vehicle；Electric vehicle travel under bumpy road or other scenes, rear-wheel 5 vibrates, driven torus 63 not with it is rear Axle 4 or core wheel 51 abut, and driven torus 63 is avoided to hit with 4 phase of back axle, prevent driven torus 63 from damaging, and keep driven torus 63 Axle center is overlapped with 5 axle center of rear-wheel, while also mitigating 63 mass of driven torus, saves cost.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims (9)

1. a kind of electric vehicle of built-in motor, including vehicle frame（1）, rear chain stay mechanism（3）, rear-wheel（5）And driving mechanism（6）, It is characterized in that：The vehicle frame（1）Rear portion and rear chain stay mechanism（3）It is hinged, the driving mechanism（6）Including being mounted on rear chain stay Mechanism（3）The built-in motor of the inside of front end（61）Be mounted on after put down and look into the back axle of component rear end（4）Be socketed in rear car Axis（4）Outer rear-wheel（5）, the rear-wheel（5）Including vehicle rim（53）, the vehicle rim（53）One side on be fixed with driven torus （63）, the built-in motor（61）Including driving shaft（611）Be mounted on driving shaft（611）The driving wheel of end（613）, described Driving mechanism（6）It further include being socketed in driving wheel simultaneously（613）And driven torus（63）The biography that outside is used to that the two to be made to rotate synchronously Dynamic band（62）.

2. a kind of electric vehicle of built-in motor according to claim 1, it is characterised in that：The driven torus（63）Including can The inner ring of disassembly（631）And outer ring（632）, the inner ring（631）With rear-wheel（5）It is fixed, the transmission belt（62）Inside and Outer ring（632）Outside can match merging drive outer ring（632）Rotation.

3. a kind of electric vehicle of built-in motor according to claim 2, it is characterised in that：The rear-wheel（5）Including vehicle rim （53）And tire, the vehicle rim（53）One lateral edge vehicle rim（53）It is circumferentially distributed to have several fixed blocks（531）, each fixed block （531）Along vehicle rim（53）Axially it is provided with fixation hole（5312）, the driven torus（63）It is upper there are also it is several can be with fixation hole（5312） The mounting hole being aligned one by one（6311）, the mounting hole（6311）With fixation hole（5312）It is inside installed with and fixation hole（5312）Screw thread The fixing bolt of connection（633）.

4. a kind of electric vehicle of built-in motor according to claim 3, it is characterised in that：The fixation hole（5312）It is located at Inner ring（631）On, the fixation hole（5312）Outside in inner ring（631）Lateral surface on protuberance form the protrusion of bar shaped （6312）, the outer ring（632）Inside has can be with protrusion（6312）The mating groove of fitting（6321）.

5. a kind of electric vehicle of built-in motor according to claim 3, it is characterised in that：The fixation hole（5312）It is located at Inner ring（631）On, the fixing bolt（633）Including with fixation hole（5312）The thread segment of threaded connection（6331）With for revolving Stubborn screws end（6332）, while the fixing bolt（633）It is divided into positioning bolt（633a）And caging bolt（633b）, described Positioning bolt（633a）Screw end（6332）Only with inner ring（631）It abuts, the caging bolt（633b）Screw end （6332）It can be with inner ring（631）, outer ring（632）It abuts simultaneously, the fixed block（531）End face can be with outer ring（632）Side Face abuts against.

6. a kind of electric vehicle of built-in motor according to claim 3, it is characterised in that：Each fixed block（531） Structure is all the same and its fixed block（531）Towards vehicle rim（53）Outside tilt extend, the fixation hole（5312）It is axial parallel Vehicle rim（53）It is axial.

7. a kind of electric vehicle of built-in motor according to claim 1, it is characterised in that：The transmission belt（62）Inside Band distributional drive tooth（621）, the driving wheel（613）Outside have and driving cog（621）The driving tooth of engagement（6131）, institute State driven torus（63）Outside have and driving cog（621）The driven tooth of engagement（6322）.

8. a kind of electric vehicle of built-in motor according to claim 7, it is characterised in that：The driven torus（63）Outside With positioned at driven tooth（6322）Two sides and and driven torus（63）Two coaxial stop collars（6323）.

9. a kind of electric vehicle of built-in motor according to claim 1, it is characterised in that：Including the damper mechanism that stretches（7）, The flexible damper mechanism（7）Lower end be articulated with rear chain stay mechanism（3）Rear end, the upper end and vehicle frame（1）Hingedly.