CN219888683U

CN219888683U - Coaxial gearbox supporting arm structure convenient for motor heat dissipation

Info

Publication number: CN219888683U
Application number: CN202321597829.5U
Authority: CN
Inventors: 朱仁华; 郑连宝; 尤跃峰; 沈可宇
Original assignee: Wuxi Shengbao Vehicle Manufacturing Co ltd
Current assignee: Wuxi Shengbao Vehicle Manufacturing Co ltd
Priority date: 2023-06-21
Filing date: 2023-06-21
Publication date: 2023-10-24
Anticipated expiration: 2033-06-21

Abstract

The utility model provides a coaxial gearbox supporting arm structure convenient for motor heat dissipation, which comprises: the two cantilever bodies are provided with front parts and rear parts corresponding to the front parts, four connecting screw holes are formed in the front parts between the two cantilever bodies, connecting pieces are arranged between the two front parts, one rear part is provided with a motor accommodating box, the other rear part is provided with a gearbox mechanism, and a brake block mechanism is arranged between the gearbox mechanism and the motor accommodating box; according to the utility model, the cantilever body is widened by arranging the four connecting screw holes, the rigidity and the reliability of the structure are enhanced, the effect of enabling the motor body to be partially hollowed out is realized by arranging the holding claws and the notch grooves, the motor body is prevented from overheating, the service life of the motor body is prolonged, the cantilever body and the motor accommodating box are enabled to be integrally seen by arranging the bottom cover and the fixing holes, and the assembly, disassembly and maintenance of the motor body can be facilitated.

Description

Coaxial gearbox supporting arm structure convenient for motor heat dissipation

Technical Field

The utility model relates to the technical field of gearbox support arms, in particular to a coaxial gearbox support arm structure convenient for motor heat dissipation.

Background

The existing coaxial gearbox supporting arm structure is not firm enough, the connecting screws of the supporting arm and the gearbox fixing shaft connecting piece are fewer, the rigidity is insufficient when the electric motorcycle is at a high speed, the existing similar gearbox motor is directly placed into a closed motor cylinder of the gearbox, the heat dissipation of the motor is poor, the volume of the gearbox is increased, the dead weight is increased, and the production and manufacturing cost is greatly increased.

Therefore, there is a need to develop a coaxial gearbox support arm structure that facilitates heat dissipation from a motor.

Disclosure of Invention

The utility model provides a firm coaxial gearbox supporting arm structure which is convenient for heat dissipation of a motor to solve the problems.

In order to achieve the above object, an embodiment of the present utility model provides a coaxial gearbox support arm structure for facilitating heat dissipation of a motor, including: the two cantilever bodies are provided with a front part and a rear part corresponding to the front part, four connecting screw holes are formed in the front part position between the two cantilever bodies, a connecting piece is arranged between the two front parts, one rear part is provided with a motor accommodating box, the other rear part is provided with a gearbox mechanism, and a brake pad mechanism is arranged between the gearbox mechanism and the motor accommodating box.

Further, long screws are arranged in the four connecting screw holes, and are suitable for connecting the cantilever body and the connecting piece.

Furthermore, a hollow groove is formed in the inner side of the cantilever body.

Further, the hollow groove is internally provided with a reinforcing rib, and the reinforcing rib and the cantilever body are of an integrated structure.

Further, the motor housing case includes a bottom cover disposed at one of the rear positions.

Furthermore, a plurality of fixing holes are formed in one side of the bottom cover, and assembling and disassembling bolts are arranged in the fixing holes and are suitable for connecting the bottom cover with the cantilever body.

Furthermore, four holding claws are fixed on one side of the bottom cover, and a notch groove is formed between the two holding claws.

Further, a motor body is arranged between the bottom cover and the holding claws, and part of the motor body leaks out of the notch groove.

Compared with the prior art, the embodiment of the utility model has the following beneficial effects:

the cantilever body is widened by arranging four connecting screw holes, so that the rigidity and the reliability of the structure are enhanced;

the holding claws and the notch grooves are arranged, so that the motor body is prevented from overheating, and the service life of the motor body is prolonged;

through setting up bottom and fixed orifices, can be convenient for to motor body loading and unloading maintenance.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a perspective view of a preferred embodiment of a coaxial transmission support arm structure for facilitating heat dissipation from a motor in accordance with the present utility model;

FIG. 2 is a perspective view of a preferred embodiment of the cantilever body and motor housing case of the present utility model;

FIG. 3 is a perspective view of a preferred embodiment of the bottom cover of the present utility model;

fig. 4 is a perspective view of a preferred embodiment of the motor housing case of the present utility model.

Wherein, 1, cantilever body; 11. a front part; 12. a rear portion; 13. a connecting screw hole; 14. a hollow groove; 15. reinforcing ribs; 2. a connecting piece; 3. a motor housing case; 31. a bottom cover; 32. a grip claw; 33. a notch groove; 34. a fixing hole; 4. a motor body; 5. a brake pad mechanism; 6. a gearbox mechanism.

Detailed Description

The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.

Referring to fig. 1 to 2, fig. 1 is a perspective view of a preferred embodiment of a support arm structure of a coaxial gearbox for facilitating heat dissipation of a motor according to the present utility model; fig. 2 is a perspective view of a preferred embodiment of the cantilever body and motor housing case of the present utility model. As shown in fig. 2 to 3, the present utility model provides a coaxial gearbox support arm structure for facilitating heat dissipation of a motor, comprising: the two cantilever bodies 1, it should be further explained that, compared with the prior art, the cantilever bodies 1 are integrally widened, and simultaneously, the inner sides of the cantilever bodies 1 are provided with hollow grooves 14. The strengthening rib 15 is provided with in the fretwork groove 14, and strengthening rib 15 and cantilever body 1 are integrated into one piece structure, and strengthening rib 15 and the design in fretwork groove 14 can be further improve support strength when alleviateing whole weight.

With continued reference to fig. 1 in combination with fig. 3, fig. 3 is a perspective view of a bottom cover according to a preferred embodiment of the present utility model. As shown in fig. 1 and 3, the cantilever body 1 has a front portion 11 and a rear portion 12 corresponding to the front portion 11, four connecting screw holes 13 are provided at the position of the front portion 11 between the two cantilever bodies 1, a connecting member 2 is provided between the two front portions 11, and long screws are provided in the four connecting screw holes 13, and are adapted to connect the cantilever body 1 and the connecting member 2. The main purpose of this design is to enhance structural rigidity and reliability, one rear 12 position is provided with a motor housing case 3, the other rear 12 position is provided with a gearbox mechanism 6, and a brake pad mechanism 5 is provided between the gearbox mechanism 6 and the motor housing case 3.

With continued reference to fig. 3 in combination with fig. 4, fig. 4 is a perspective view of a preferred embodiment of the motor housing case of the present utility model. As shown in fig. 3 and 4, the motor housing case 3 includes a bottom cover 31, and the bottom cover 31 is provided at one of the rear portions 12. A plurality of fixing holes 34 are formed in one side of the bottom cover 31, and a mounting and dismounting bolt adapted to connect the bottom cover 31 with the cantilever body 1 is provided in the fixing holes 34. It should be further noted that the improved gearbox mechanism 6 and cantilever body 1 allow for easy disassembly and maintenance of the motor body 4 alone. The bottom cover 31 on the motor body 4 and the cantilever body 1 are integrally designed in shape. In addition, the encoder cover is designed on the bottom cover 31, so that the encoder can be conveniently disassembled, the circuit board and the magnetic encoder are convenient to overhaul after the encoder cover is disassembled, four holding claws 32 are fixed on one side of the bottom cover 31, and a notch groove 33 is formed between the two holding claws 32. The motor body 4 is arranged between the bottom cover 31 and the holding claw 32, and part of the motor body 4 leaks outside the notch groove 33, that is, when the electric motor is started, wind can well take away heat generated by the exposed motor body 4, so that the motor body 4 is prevented from overheating, and the service life of the motor body 4 is prolonged.

In summary, the beneficial effects of the utility model are as follows: through setting up four connecting screw holes 13, widen cantilever body 1, set up hollow groove 14 and strengthening rib 15, improve supporting strength when lightening overall weight, reinforced structure rigidity and reliability, through setting up grip 32 and breach groove 33, realized letting motor body 4 part fretwork external effect, the better heat of taking away motor body 4 production of wind that produces in letting electric motor go, thereby prevent motor body 4 overheat, extension motor body 4 life-span, through setting up bottom 31 and fixed orifices 34, make cantilever body 1 and motor hold case 3 and look as a whole, can also be convenient for loading and unloading to motor body 4 overhauls.

With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.

Claims

1. Coaxial gearbox support arm structure convenient to motor heat dissipation, its characterized in that includes: the novel cantilever structure comprises two cantilever bodies (1), wherein the cantilever bodies (1) are provided with front parts (11) and rear parts (12) corresponding to the front parts (11), four connecting screw holes (13) are formed in the positions of the front parts (11) between the two cantilever bodies (1), connecting pieces (2) are arranged between the two front parts (11), one motor accommodating box (3) is arranged at the positions of the rear parts (12), a gearbox mechanism (6) is arranged at the positions of the rear parts (12), and a brake pad mechanism (5) is arranged between the gearbox mechanism (6) and the motor accommodating box (3).

2. A coaxial transmission support arm structure for facilitating heat dissipation of an electric motor as defined in claim 1, wherein: long screws are arranged in the four connecting screw holes (13) and are suitable for connecting the cantilever body (1) and the connecting piece (2).

3. A coaxial transmission support arm structure for facilitating heat dissipation of a motor as defined in claim 2, wherein: hollow grooves (14) are formed in the inner side of the cantilever body (1).

4. A coaxial transmission support arm structure for facilitating heat dissipation of an electric motor as set forth in claim 3, wherein: reinforcing ribs (15) are arranged in the hollowed-out grooves (14), and the reinforcing ribs (15) and the cantilever body (1) are of an integrated structure.

5. A coaxial transmission support arm structure for facilitating heat dissipation of a motor as defined in claim 4, wherein: the motor housing case (3) includes a bottom cover (31), the bottom cover (31) being provided at one of the rear portions (12).

6. A coaxial transmission support arm structure for facilitating heat dissipation of an electric motor as defined in claim 5, wherein: one side of the bottom cover (31) is provided with a plurality of fixing holes (34), and the fixing holes (34) are internally provided with assembling and disassembling bolts which are suitable for connecting the bottom cover (31) with the cantilever body (1).

7. The coaxial transmission support arm structure for facilitating heat dissipation of a motor of claim 6, wherein: four holding claws (32) are fixed on one side of the bottom cover (31), and a notch groove (33) is formed between the two holding claws (32).

8. A coaxial transmission support arm structure for facilitating heat dissipation of a motor as defined in claim 7, wherein: a motor body (4) is arranged between the bottom cover (31) and the holding claws (32), and part of the motor body (4) leaks out of the notch groove (33).