CN210235200U

CN210235200U - Motor wheel axle fixing device for balance car and balance car

Info

Publication number: CN210235200U
Application number: CN201921054491.2U
Authority: CN
Inventors: Chuanmei Zang; 臧传美
Original assignee: Zhejiang Aerlang Technology Co Ltd
Current assignee: Zhejiang Aerlang Technology Co Ltd
Priority date: 2019-07-08
Filing date: 2019-07-08
Publication date: 2020-04-03
Anticipated expiration: 2029-07-08

Abstract

The utility model discloses a motor shaft fixing device and balance car for balance car, include fixed baseplate, clamp plate and the fastener of being connected with the balance car shell, set up the recess two that is used for placing the motor shaft on the fixed baseplate, the motor shaft is in between clamp plate and the fixed baseplate, and the clamp plate has smooth lower surface, and the motor shaft is seted up recess one in the position that leans on with the clamp plate, and the fastener is connected the clamp plate on the fixed baseplate, and the fastener supports tight motor shaft with the clamp plate. The utility model discloses a motor shaft fixing device and balance car for balance car, clamp plate adopt smooth surface, through fastener and fixed baseplate fixed mounting, more prior art scheme, structural modeling is simple, does not occupy the inside space of balance car, through the fixed connection with the balance car, has guaranteed motor shaft's safety and stability's work.

Description

Motor wheel axle fixing device for balance car and balance car

Technical Field

The utility model relates to a motor shaft fixing device and balance car for balance car.

Background

The motor wheel shaft of the wheel of the existing balance car is fixed by adopting a mounting bracket, and the mounting bracket is provided with an inward concave groove at the contact part of the existing mounting bracket and the motor wheel shaft. The inventor of the present application finds that the prior art has at least the following technical problems in the process of invention. If the shape of the groove needs to be matched with the shape of the outer edge of the section of the motor wheel shaft, the structure of the mounting support is complex, the groove is troublesome to open, the structural strength of the mounting support is greatly influenced, and the reliable fixation of the motor wheel shaft is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a motor shaft fixing device for balance car can solve the prior art defect, provides a simple structure's clamp plate for the balance car.

The utility model discloses a realize through following technical scheme:

the utility model provides a motor shaft fixing device for balance car, include the fixed baseplate, clamp plate and the fastener of being connected with balance car shell, set up the recess two that are used for placing the motor shaft on the fixed baseplate, the motor shaft is in between clamp plate and the fixed baseplate, and the clamp plate has smooth lower surface, and the motor shaft is in the position of leaning on with the clamp plate and has seted up recess one, and the fastener is connected the clamp plate on the fixed baseplate, and the fastener supports tight motor shaft with the clamp plate. Through adopting above-mentioned technical scheme, the clamp plate adopts smooth surface, through fastener fixed mounting, and than prior art technical scheme, structural modeling is simple, does not occupy the inside space of balance car, through the fixed connection with the balance car, has guaranteed the work of the safety and stability of motor shaft.

As the utility model discloses a further improvement, the clamp plate is offered along the vertical direction and is used for the through-hole that the fastener passed, and the through-hole is located both sides around the clamp plate, and the distance of the hole center of both sides through-hole is greater than the diameter of motor shaft around, offers the screw hole that is used for the fastener to be connected with clamp plate through-hole relevant position department on fixed baseplate. Through adopting above-mentioned technical scheme, the clamp plate has had with balance car fixed connection's part.

As a further improvement, the fixing base is made of metal. Through adopting above-mentioned technical scheme, the fixed baseplate adopts the metal material, makes the difficult devillicate of screw-up after on the base, makes the use of balance car safer.

As a further improvement, the number of the pressing plate through holes is four, and the pressing plate through holes are a through hole I, a through hole II, a through hole III and a through hole IV respectively and are positioned at four corners of the pressing plate, and the pressing plate is a flat metal plate or a hard plastic plate which is approximately rectangular. Through adopting above-mentioned technical scheme, the clamp plate can cover whole fixed baseplate's upper surface, makes the fixed of motor wheel axle more firm.

As a further improvement of the utility model, the bottom of recess one is the plane, and the length of clamp plate agrees with the planar length of recess one bottom of motor shaft mutually, and the lower surface of clamp plate contacts with the plane of the bottom of recess one. By adopting the technical scheme, the pressing plate is matched and fixed with the motor wheel shaft part, so that the motor wheel shaft is better fixed.

As a further improvement of the utility model, the depth of the first groove is 1/8-1/4 of the diameter of the motor axle. Through adopting above-mentioned technical scheme, can make the installation of motor wheel axle more firm, the setting of degree of depth can make the motor wheel axle reach the effect of fastening under the condition that need not increase material cost.

As a further improvement of the utility model, the distance between the end part of the free end of the motor wheel shaft and the adjacent end part of the first groove is 2-5 mm. Through above-mentioned technical scheme, fixed between motor wheel axle and the fixed baseplate can be more firm, prevent that the phenomenon of motor wheel axle emergence slippage, guaranteed the security of the in-process of traveling.

As a further improvement, the motor wheel shaft is fixed, a gap or contact is arranged between the upper surface of the fixed base and the lower surface of the pressing plate, and the groove two is arranged at the middle position of the fixed base and is communicated with the left and the right. Through adopting above-mentioned technical scheme, the clamp plate probably also probably has gapped being connected with fixed base zonulae occludens, can install on the fixed base and place the motor wheel axle.

The utility model also provides a balance car, include as before an arbitrary balance car motor shaft fixing device, still include the casing, fixed baseplate is located the left and right sides of casing, is connected with casing integrated into one piece or detachable. Through adopting above-mentioned technical scheme, the balance car casing has the part fixed with the clamp plate, and the clamp plate passes through the fixed baseplate and is fixed with the balance car.

As a further improvement, the two sides of the balance car shell are provided with side plates, and a wheel axle groove used for matching with the motor wheel axle is arranged at the middle position of the upper edge of each side plate. Through adopting above-mentioned technical scheme, have the position of installing with the motor wheel axle cooperation on making the balance car casing.

Drawings

Fig. 1 is an overall structure schematic diagram of the motor wheel shaft fixing device provided by an embodiment of the present invention after being installed and fixed with a balance car.

Fig. 2 is an enlarged view of a point a in fig. 1.

Fig. 3 is an exploded view of fig. 1.

Fig. 4 is a schematic structural view of the press plate of fig. 1.

Fig. 5 is a schematic view of the structure of the wheel and axle of fig. 1.

Fig. 6 is a partial structural schematic diagram of the balance car shell in fig. 1.

In the figure: a pressing plate 1; an upper surface 11; a lower surface 12; a first through hole 13; a second through hole 14; a third through hole 15; a fourth through hole 16; a fixed base 2; a second groove 21; mounting holes 22; a wheel 3; a motor hub 31; a first groove 32; a threading hole 33; a fastener 4; a lower case 5; side plates 51; axle slot 52.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the objects of the present invention, the following buckling drawings and preferred embodiments are described in detail below with reference to the following detailed description of the embodiments, structures, features and effects of the present invention.

The terms upper, lower, left, right, front, rear, and the like in this application denote terms of orientation, are used for clarity only, and do not denote any limitation on the scope of the present invention. Specifically, the upper, lower, left and right in the application refer to the upper, lower, left and right of the balance car in normal use after the motor wheel shaft is installed as shown in fig. 1; the front is the forward direction of the balance car, and the rear is the backward direction of the balance car.

Example 1

As shown in fig. 1-6, the utility model discloses a motor wheel axle fixing device for balance car, a motor wheel axle 31 for the wheel of fixed balance car, motor wheel axle fixing device includes fixed baseplate 2 with balance car shell body coupling, clamp plate 1 and fastener 4, set up two 21 recesses that are used for placing motor wheel axle 31 on the fixed baseplate 2, motor wheel axle 31 is in between clamp plate 1 and the fixed baseplate 2, clamp plate 1 has smooth lower surface 12, motor wheel axle 31 is seted up fluted one 32 in the position of leaning on with clamp plate 1, fastener 4 connects clamp plate 1 on fixed baseplate 2, and fastener 4 supports clamp plate 1 tight motor wheel axle 31. In the present embodiment, the lower case 5 of the balance car is connected to the fixed base 2.

As shown in fig. 4, the platen 1 is a flat metal plate or a hard plastic plate having a substantially rectangular shape, and the upper surface 11 and the lower surface 12 and four side surfaces of the platen are flat. Of course, in other embodiments, it is only necessary to ensure that the surface of the platen that contacts the motor hub is planar. The adjacent corners of the pressing plate 1 connected to the adjacent side surfaces are circular arc chamfers, through holes for fasteners to pass through are formed in the pressing plate along the vertical direction, specifically, a first through hole 13, a second through hole 14, a third through hole 15 and a fourth through hole 16 for mounting and fixing with a fixing base are formed downwards in the positions, close to the four corners, of the upper surface 11, and penetrate through the lower surface 12. As shown in fig. 1, the pressing plate 1 is fixed on the fixed base 2 through a fastening member 4, and the lower surface 12 of the pressing plate contacts and presses against the motor axle 31, so that the motor axle is fixed between the pressing plate and the fixed base. In this embodiment, the fastener is a socket head cap screw, the size of the head of the screw is larger than the size of each through hole, the size of the rod of the screw is smaller than the size of each through hole, the fixing base 2 is provided with a mounting hole 22 matched with the external thread on the rod of the screw, and the mounting hole is an internal thread hole.

As shown in fig. 5, the wheel 3 of the balance car has a hub motor therein, a stator of the hub motor is connected with a motor axle, and a rotor is arranged at the periphery of the stator and can rotate around the stator. The motor wheel shaft 31 of the motor extends out from the center of the side face of the wheel, one end of the motor wheel shaft is fixedly connected relative to the fixed base, and the other end of the motor wheel shaft is fixedly connected relative to the stator of the in-wheel motor. A first groove 32 is formed in the cylindrical top of the motor wheel shaft 31, the bottom of the first groove is a horizontally arranged plane, two sides of the first groove are vertically arranged planes, and the length of the plane at the bottom of the first groove 32 is matched with that of the pressing plate 1. The lower surface 12 of the pressing plate 1 is contacted with the bottom surface of the first groove 32, and the left and right inner side walls of the first groove 32 are contacted with the left and right side surfaces of the pressing plate 1 to form matched fixation with the pressing plate 1; in other embodiments, the length of the platen may be less than the length of a plane of a bottom of the groove. The axis of the motor wheel shaft 31 is provided with a threading hole 33 for a lead to penetrate into the stator. The fixed base is made of metal (such as iron, aluminum, copper and the like), and the threaded hole is not easy to slip. Particularly, the fixed base is made of cast iron, so that the cost is low. As a further improvement of the utility model, the depth of the first groove 32 is 1/8-1/4 of the diameter of the motor axle 31, so that the motor axle can be fastened without increasing the material cost. As a further improvement of the utility model, the distance between the end of the free end of the motor axle 31 and the adjacent end of the first groove 32 is 2-5mm, so that the motor axle can be prevented from sliding and falling off in the movement process.

As shown in fig. 2, 3 and 6, a second groove 21 for placing the motor wheel shaft 31 is formed on the fixed base 2, a first groove 32 is formed on the top of the motor wheel shaft 31, the rest outer edge surfaces of the motor wheel shaft 31 are arc-shaped surfaces, and the motor wheel shaft 31 with the arc-shaped surface is placed in the second groove 21; the fastener can press the pressure plate 1 to the position of the first groove 32 on the motor axle, namely the fastener 4 penetrates through the pressure plate, the fastener 4 connects the pressure plate and the fixed base together, and therefore the motor axle can be fixed on the fixed base by tightening the fastener. After the installation, the lower surface of the pressure plate abuts against the bottom plane of the first groove, the bottom plane of the first groove can be slightly higher than the upper surface of the fixed base or flush with the upper plane of the fixed base, namely, a gap is reserved between the lower surface of the pressure plate and the upper surface of the fixed base or the pressure plate is in close contact with the upper surface of the fixed base; if a gap is left, the motor wheel shaft can be more favorably fixed on the fixed base by the pressing plate under the action of the fastening piece.

In other embodiments, the fixing base may be connected to the upper housing of the balance car, the fixing base may be located above the motor axle, the pressing plate may be located below the motor axle, and correspondingly, a first groove may be formed at the bottom of the motor axle.

Example 2

As shown in fig. 1, a balance car is provided with the motor wheel shaft fixing device for the balance car as described in embodiment 1, and further provided with a housing and wheels 3, wherein the wheels 3 are mounted on the left and right sides of the housing; the fixed base 2 is integrally formed or detachably connected to wheel position mounting positions on the left and right sides of the housing. The pressing plate 1 is installed on a fixed base on the shell, the motor wheel shaft 31 is located between the pressing plate and the fixed base, the pressing plate is fixed on the fixed base through a fastener, and the motor wheel shaft 31 is fixed on the fixed base of the shell through the pressing plate 1.

As shown in fig. 6, the housing generally includes an upper shell (not shown in the figure) and a lower shell 5, the fixing base 2 can be located on the upper shell or the lower shell 5, for example, the lower shell 5 has a side plate 51 for mounting and cooperating with the wheel 3, a wheel axle slot 52 for mounting a wheel axle of the motor is downwardly opened at a middle position of an upper edge of the side plate 51, the fixing base 2 is provided at a middle position of an inner side near the side plate 51, the fixing base 2 and the lower shell 5 are integrally formed, a mounting hole 22 corresponding to a position and a number of through holes on the pressing plate 1 is opened on the fixing base 2 for fixing and mounting the pressing plate by a screw, and a groove two 21 for placing the motor axle 31 is opened at a middle position on the fixing base 2 corresponding to the wheel axle slot 52 on the side plate. The fixed positions of the motor wheel shafts on the left side and the right side of the lower shell are the same in structure. And a plurality of mounting columns for mounting and fixing the upper shell and the internal circuit board are arranged in the lower shell 5 at different positions close to the edge and the middle.

In this embodiment, inferior valve 5 is metal casing or rigid plastic casing, and the unable adjustment base is the metal material, compares in the scheme that the unable adjustment base is the plastics material, and the internal thread hole is convenient for be seted up on it to the unable adjustment base of metal material to be used for the connection of fastener, difficult the wire stripping.

Motor shaft 31 is placed on the fixed baseplate 2 of inferior valve 5, is in on recess two 21, also is in on the shaft groove 52, and clamp plate 1 passes through fastener 4 fixed connection with the fixed baseplate of inferior valve 5, and the clamp plate lower surface supports and leans on the bottom plane in motor shaft's recess one, has formed fixed effect to motor shaft 31, has guaranteed the safety and stability of motor shaft at the in-process of work, has also guaranteed the safe operation of balance car simultaneously.

Of course, in other embodiments, the fixing base, the side plate and the groove for matching with the motor axle may also be disposed on the upper shell of the balance car instead of the lower shell, and the modeling structures of the motor axle grooves on the fixing base and the side plate are the same as those on the lower shell, and are not described herein again.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed by the preferred embodiment, it is not limited to the present invention, and any person skilled in the art can make modifications or changes equivalent to the above embodiments without departing from the scope of the present invention, but all the modifications, changes and modifications of the above embodiments that do not depart from the technical scope of the present invention are within the scope of the present invention.

Claims

1. The utility model provides a motor wheel axle fixing device for balance car, a serial communication port, include fixed baseplate (2) with balance car shell body coupling, clamp plate (1) and fastener (4), set up recess two (21) that are used for placing motor wheel axle (31) on fixed baseplate (2), motor wheel axle (31) are in between clamp plate (1) and fixed baseplate (2), clamp plate (1) have smooth lower surface (12), motor wheel axle (31) are supporting the position of leaning on with clamp plate (1) and are seted up recess one (32), fastener (4) are connected clamp plate (1) on fixed baseplate (2), and fastener (4) support clamp plate (1) tight motor wheel axle (31).

2. The motor wheel axle fixing device for the balance vehicle as claimed in claim 1, wherein the pressing plate (1) is provided with through holes for passing fasteners in a vertical direction, the through holes are located at the front and rear sides of the pressing plate (1), the distance between the hole centers of the through holes at the front and rear sides is greater than the diameter of the motor wheel axle, and the fixing base (2) is provided with threaded holes for connecting the fasteners at positions corresponding to the through holes of the pressing plate (1).

3. The motor wheel axle fixing device for the balance vehicle according to claim 1, wherein the material of the fixing base (2) is a metal material.

4. The motor wheel axle fixing device for the balance vehicle according to claim 2, wherein the number of the through holes of the pressure plate (1) is four, and the through holes are respectively a through hole one (13), a through hole two (14), a through hole three (15) and a through hole four (16) which are respectively positioned at four corners of the pressure plate (1), and the pressure plate (1) is a flat metal plate or a hard plastic plate which is approximately rectangular.

5. The motor wheel axle fixing device for the balance vehicle according to claim 1, wherein the bottom of the first groove is a plane, the length of the pressure plate (1) is matched with the length of the plane at the bottom of the first groove (32) of the motor wheel axle (31), and the lower surface (12) of the pressure plate (1) is in contact with the plane at the bottom of the first groove (32).

6. The motor wheel axle fixing device for the balance vehicle of claim 5, wherein the depth of the first groove (32) is 1/8-1/4 of the diameter of the motor wheel axle (31).

7. The motor wheel axle fixing device for balance vehicles according to claim 1, characterized in that the distance between the end of the free end of the motor wheel axle (31) and the adjacent end of the first recess (32) is 2-5 mm.

8. The motor wheel shaft fixing device for the balance vehicle according to claim 1, wherein after the motor wheel shaft (31) is fixed, a gap is formed between or contacts with the upper surface of the fixing base (2) and the lower surface of the pressure plate (1), and the second groove (21) is opened in the middle of the fixing base (2) and penetrates left and right.

9. A balance vehicle, characterized in that, comprises the motor wheel shaft fixing device for the balance vehicle as claimed in any one of claims 1-8, and further comprises a shell, wherein the fixing bases (2) are positioned at the left and right sides of the shell, and the fixing bases (2) are integrally formed with or detachably connected with the shell.

10. The balance car of claim 9, wherein the balance car housing (5) has side plates (51) at both sides thereof, and a wheel axle groove (52) for engaging with the motor wheel axle (31) is formed at a middle position of an upper edge of the side plates.