CN211764958U

CN211764958U - Rear-mounted two-wheeled electrically-driven electric vehicle

Info

Publication number: CN211764958U
Application number: CN202020407923.XU
Authority: CN
Inventors: 尤玉狮; 刘竞威; 刘志勇; 汪灿; 刘卓科; 陈国栋
Original assignee: Guangdong Xiangtian Automobile Intelligent Co ltd; Guangdong Xiangtian Intelligent Automobile Research Park Co ltd
Current assignee: Guangdong Xiangtian Automobile Intelligent Co ltd; Guangdong Xiangtian Intelligent Automobile Research Park Co ltd
Priority date: 2020-03-26
Filing date: 2020-03-26
Publication date: 2020-10-27
Anticipated expiration: 2030-03-26

Abstract

The utility model belongs to the technical field of the electric motor car technique and specifically relates to a rear-mounted two-wheeled electric drive electric motor car, comprising a base plate, the last surface of bottom plate is inseparable to be welded has the bracing piece that a plurality of is the matrix and arranges, the bracing piece is vertical form and distributes, be equipped with fixed frame on the bracing piece, still be equipped with driving motor on the bottom plate, driving motor's output shaft front end and driving motor's output shaft end all inseparable welding have the transmission shaft, the end of transmission shaft is equipped with the wheel, the lower surface of bottom plate still is equipped with a plurality of elasticity shock attenuation board, through fastening bolt fixed connection between a plurality of elasticity shock attenuation board, it has the fixed block all inse. The utility model discloses a transmission system is comparatively simple, and drive efficiency is higher, and mechanical transmission energy consumption is low, convenient to popularize and use.

Description

Rear-mounted two-wheeled electrically-driven electric vehicle

Technical Field

The utility model relates to an electric motor car technical field specifically is a rear-mounted two-wheeled electric drive electric motor car.

Background

The electric vehicle is taken as a tool for riding instead of walk or carrying goods by people, and the existing electric vehicle adopts a driving motor to be connected with an intermediate transmission shaft through a reduction gear box and then drives a rear axle to drive the vehicle to run. Because the middle transmission shaft drives the rear axle differential system, the differential mechanisms on the left side and the right side are further driven, and the left side wheel and the right side wheel are driven to run, the whole driving and transmission system of the vehicle is complex, the transmission efficiency of the vehicle is low through a multi-stage transmission mechanism, the energy consumption of mechanical transmission is high, and the existence of the middle transmission shaft leads to the fact that the ground clearance of the bottom plate of the vehicle is high, the vehicle is not convenient for passengers to get on or off the vehicle, or the loading and unloading of goods are not facilitated. In view of this, we propose a rear-mounted two-wheeled electrically-driven electric vehicle.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rear-mounted two-wheeled electric drive electric motor car to the drive and the comparatively complicated transmission efficiency who leads to the vehicle of transmission system of the current electric motor car that provide among the solution above-mentioned background art are low, mechanical transmission's energy consumption high problem.

In order to achieve the above object, the utility model provides a following technical scheme:

a rear-mounted two-wheeled electric drive electric vehicle comprises a bottom plate, wherein a plurality of support rods arranged in a matrix form are welded on the upper surface of the bottom plate tightly, the support rods are distributed in a vertical shape, a fixed frame is arranged on each support rod, a drive motor is further arranged on the bottom plate, transmission shafts are welded on the front end of an output shaft of the drive motor and the tail end of the output shaft of the drive motor tightly, and wheels are arranged at the tail ends of the transmission shafts;

the lower surface of bottom plate still is equipped with a plurality of elasticity shock attenuation board, a plurality of through fastening bolt fixed connection between the elasticity shock attenuation board, be located the top one the equal inseparable welding of both ends upper surface of elasticity shock attenuation board has the fixed block, set up the first through-hole that is linked together with the external world in the fixed block, the inseparable welding has the bearing on the pore wall of first through-hole, the transmission shaft passes and corresponds the bearing and with the inner circle of bearing inseparable welding.

Preferably, the cross section of the elastic damping plate is arc-shaped.

Preferably, the fixed frame is further provided with a frame.

Preferably, the fixed block is further provided with a damping device, and the damping device comprises a supporting cylinder arranged on the fixed block and a supporting column arranged on the fixed frame.

Preferably, a second through hole communicated with the outside is formed in the supporting cylinder, the supporting column is matched with the second through hole in an inserting mode, two damping springs which are symmetrical to each other are further arranged in the second through hole, and a fixing disc is arranged between the two damping springs.

Preferably, the size of the fixed disk is matched with that of the second through hole.

Preferably, one end of one of the damping springs is tightly bonded on the hole wall of the second through hole, the other end of the one of the damping springs is tightly bonded on the fixed disc, one end of the other damping spring is tightly bonded on the fixed disc, and the other end of the other damping spring is tightly bonded on the supporting column.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a driving motor who sets up, and the transmission shaft of the driving motor left and right sides links to each other with the wheel on left and right sides respectively, when the transmission shaft of the driving motor drive left and right sides, the transmission shaft redrives left and right sides wheel, make the vehicle travel, this transmission mode's drive efficiency is high, and do not have any connection drive mechanism between rear axle and the front axle, thereby can reduce the interlude and hold the board height, be convenient for the passenger to get on or off the bus, the drive of having solved current electric motor car leads to the transmission efficiency of vehicle with transmission system comparatively complicacy low, the high problem of mechanical transmission energy consumption.

2. The utility model discloses a damping device who sets up reaches better shock attenuation effect, when making the wheel go on the road surface, can not too jolt, has solved the relatively poor problem of shock attenuation effect of general electric motor car.

Drawings

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

FIG. 2 is an exploded view of the present invention;

FIG. 3 is an enlarged view of the point A in FIG. 2 according to the present invention;

fig. 4 is an exploded view of the shock absorber of the present invention.

In the figure: 1. a base plate; 10. a support bar; 11. a fixed frame; 12. a drive motor; 13. a drive shaft; 14. a wheel; 15. an elastic damping plate; 151. fastening a bolt; 16. a fixed block; 161. a first through hole; 17. a bearing; 18. a frame; 2. a damping device; 20. a support cylinder; 21. a second through hole; 22. a damping spring; 23. fixing the disc; 24. and (4) a support column.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-4, the present invention provides a technical solution:

the utility model provides a rear-mounted two-wheeled electric drive electric motor car, includes bottom plate 1, and the last surface of bottom plate 1 closely welds has a plurality of to be the bracing piece 10 that the matrix was arranged, and bracing piece 10 is vertical form and distributes, is equipped with fixed frame 11 on the bracing piece 10, still is equipped with driving motor 12 on the bottom plate 1, and the terminal all closely welding of output shaft front end of driving motor 12 and driving motor 12's output shaft has transmission shaft 13, and the end of transmission shaft 13 is equipped with wheel 14.

In this embodiment, the fixing frame 11 is tightly welded to the support rod 10, so as to ensure structural firmness, prevent damage, and prolong the service life.

Specifically, driving motor 12 passes through fastening bolt and bottom plate 1 fixed connection, offers the screw hole that a plurality of and external world are linked together in the base on driving motor 12 promptly, and the screw hole that is linked together with the external world is also offered to the position to the screw hole in the base on driving motor 12 in bottom plate 1, and fastening bolt is threaded connection between the screw hole in the base on with driving motor 12 and the screw hole in bottom plate 1 simultaneously.

The lower surface of the bottom plate 1 is further provided with a plurality of elastic damping plates 15, the elastic damping plates 15 are fixedly connected through fastening bolts 151, the upper surfaces of two ends of the uppermost elastic damping plate 15 are tightly welded with fixing blocks 16, the fixing blocks 16 are internally provided with first through holes 161 communicated with the outside, the hole walls of the first through holes 161 are tightly welded with bearings 17, the transmission shafts 13 penetrate through the corresponding bearings 17 and are tightly welded with the inner rings of the bearings 17, the fixed frame 11 is further provided with a frame 18, the fixing blocks 16 are further provided with damping devices 2, each damping device 2 comprises a supporting cylinder 20 arranged on the fixing blocks 16 and supporting columns 24 arranged on the fixed frame 11, the supporting cylinder 20 is internally provided with second through holes 21 communicated with the outside, the supporting columns 24 are in inserted fit with the second through holes 21, and two damping springs 22 which are symmetrical to each other are further arranged in the second through holes 21, a fixing plate 23 is arranged between the two damping springs 22, one end of one damping spring 22 is tightly adhered to the hole wall of the second through hole 21, the other end of the other damping spring 22 is tightly adhered to the fixing plate 23, one end of the other damping spring 22 is tightly adhered to the fixing plate 23, and the other end of the other damping spring is tightly adhered to the supporting column 24.

Specifically, elasticity shock attenuation board 15's cross-section is the arc, and because it is the arc structure, its scope of taking place deformation is wider, and when it received external force extrusion, it can take place to warp, and after external force removed, it again the reconversion, so guarantee that it has absorbing effect to a certain extent.

Further, corresponding position all is equipped with the screw hole that is linked together with the external world on every elasticity shock attenuation board 15, and the fastness of its structure is guaranteed to the equal threaded connection of screw hole in fastening bolt 151 and every elasticity shock attenuation board 15.

Furthermore, the size of the fixed disk 23 is matched with the size of the second through hole 21, that is, the annular side surface of the fixed disk 23 is attached to the hole wall of the second through hole 21, so that the fixed disk 23 cannot abut against the damping spring 22 due to the fact that the size of the fixed disk 23 is too small is avoided.

In addition, through two damping spring 22 that set up, when one of them damping spring 22 pressurized, it can transmit the effort to another damping spring 22 on to reach better shock attenuation effect, solved the relatively poor problem of the shock attenuation effect of general electric motor car.

It is worth mentioning that a larger driving force can be provided by the transmission mode, and the vehicle is not easy to slip when running on an uphill slope or a wet road surface; meanwhile, the driving mode has the advantage of light weight. Due to the rear arrangement, the vehicle is easier to turn, the adhesion of the vehicle is improved due to the increased weight of the rear half part of the vehicle, and the braking efficiency is higher.

In this embodiment, through the driving motor 12 who sets up, the transmission shaft 13 of the driving motor 12 left and right sides links to each other with wheel 14 on left and right sides respectively, when driving motor 12 works and drives the transmission shaft 13 of the left and right sides, wheel 14 about transmission shaft 13 redriven, make the vehicle travel, because this transmission mode is more direct, reduce middle complicated transmission step, make the drive efficiency higher, and do not have any drive mechanism of being connected between rear axle and the front axle, thereby can reduce interlude holding plate height, be convenient for the passenger to get on or off the bus, the drive that has solved current electric motor car leads to the transmission efficiency of vehicle comparatively complicacy with transmission system is low, the problem that mechanical transmission energy consumption is high.

The utility model discloses a rear-mounted two-wheeled electric drive electric motor car is when using, with the external power of 12 switch-ons of driving motor, the transmission shaft 13 of the work of driving motor 12 and drive the left and right sides, wheel 14 about 13 redrives of transmission shaft makes the vehicle travel, because this transmission mode is more direct, reduce middle complicated transmission step for drive efficiency is higher, the drive that has solved current electric motor car leads to the transmission efficiency of vehicle low with transmission system comparatively complicacy, the problem that mechanical transmission energy consumption is high.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A rear-mounted two-wheeled electric drive electric motor car, includes bottom plate (1), its characterized in that: the upper surface of the bottom plate (1) is tightly welded with a plurality of support rods (10) which are arranged in a matrix form, the support rods (10) are vertically distributed, a fixed frame (11) is arranged on each support rod (10), the bottom plate (1) is also provided with a driving motor (12), transmission shafts (13) are tightly welded at the front ends of output shafts of the driving motors (12) and the tail ends of output shafts of the driving motors (12), and wheels (14) are arranged at the tail ends of the transmission shafts (13);

the lower surface of bottom plate (1) still is equipped with a plurality of elasticity shock attenuation board (15), a plurality of through fastening bolt (151) fixed connection between elasticity shock attenuation board (15), is located one of the top the equal inseparable welding of both ends upper surface of elasticity shock attenuation board (15) has fixed block (16), set up first through-hole (161) that are linked together with the external world in fixed block (16), the inseparable welding has bearing (17) on the pore wall of first through-hole (161), transmission shaft (13) pass and correspond bearing (17) and with the inner circle of bearing (17) inseparable welding.

2. The rear-mounted two-wheeled electrically driven electric vehicle according to claim 1, characterized in that: the section of the elastic damping plate (15) is arc-shaped.

3. The rear-mounted two-wheeled electrically driven electric vehicle according to claim 1, characterized in that: the fixed frame (11) is also provided with a frame (18).

4. The rear-mounted two-wheeled electrically driven electric vehicle according to claim 1, characterized in that: the fixing block (16) is further provided with a damping device (2), and the damping device (2) comprises a supporting cylinder (20) arranged on the fixing block (16) and a supporting column (24) arranged on the fixing frame (11).

5. The rear-mounted two-wheeled electrically driven electric vehicle according to claim 4, characterized in that: a second through hole (21) communicated with the outside is formed in the supporting cylinder (20), the supporting column (24) is matched with the second through hole (21) in an inserting mode, two damping springs (22) which are symmetrical to each other are further arranged in the second through hole (21), and a fixing disc (23) is arranged between the damping springs (22).

6. The rear-mounted two-wheeled electrically driven electric vehicle according to claim 5, characterized in that: the size of the fixed disc (23) is matched with that of the second through hole (21).

7. The rear-mounted two-wheeled electrically driven electric vehicle according to claim 5, characterized in that: one end of the damping spring (22) is tightly bonded on the hole wall of the second through hole (21), the other end of the damping spring is tightly bonded on the fixed disc (23), the other end of the damping spring (22) is tightly bonded on the fixed disc (23), and the other end of the damping spring is tightly bonded on the supporting column (24).