CN212751982U

CN212751982U - Special seal structure of in-wheel motor

Info

Publication number: CN212751982U
Application number: CN202021591727.9U
Authority: CN
Inventors: 杜杰; 初睿; 于洪旭
Original assignee: Qingdao Runxiang Sealing Technology Co ltd
Current assignee: Qingdao Runfuxiang Sealing Technology Co ltd
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2021-03-19
Anticipated expiration: 2030-08-03

Abstract

The utility model relates to the technical field of sealing structures of hub motors, in particular to a special sealing structure of a hub motor, which comprises a sealing plate and a rotating shaft, and the sealing performance between the rotating piece and the sealing plate is enhanced by arranging the rotating piece and arranging the sealing bearing and the wear-resistant sealing ring between the rotating piece and the sealing plate, and an oil seal ring is arranged to prevent water from flowing into the external hub motor from one side of the sealing plate, thereby improving the sealing effect and further prolonging the service life of the hub motor, the inner part of the cavity ring is provided with cooling liquid and fins, the fins are provided with heat absorption holes and heat dissipation holes, thereby facilitating the heat absorbed by the cooling liquid to be conducted to the fins and conducted to the outside air through the fins, the heat dissipation effect of the hub motor is improved, heat accumulation is avoided, and the stability and the service life of the hub motor during operation are improved.

Description

Special seal structure of in-wheel motor

Technical Field

The utility model relates to a wheel hub motor seal structure technical field, in particular to special seal structure of wheel hub motor.

Background

The motor is an electromagnetic device for realizing electric energy conversion or transmission according to the electromagnetic induction law, and the motor mainly has the function of generating driving torque and is used as a power source of electric appliances or various machines.

In recent years, an electric vehicle as an environment-friendly and energy-saving vehicle is gradually accepted by consumers, the sales volume of the electric vehicle in the world is increased year by year no matter at home or abroad, the trend of the electric vehicle for replacing a bicycle is gradually expanded, a hub driving device of the electric vehicle is used as a core component of the electric vehicle, the quality of the hub driving device generally determines the overall quality of the electric vehicle, when the existing electric power assisting or electric bicycle is used, a gap exists between a rotating shaft and a sealing cover plate, water enters the hub motor under the condition of water involvement, the problem of motor damage is caused, when the hub motor works for a long time, a large amount of heat is generated, the heat is accumulated, the motor damage is caused, the service life is influenced, although some existing sealing structures adopt cooling liquid for heat dissipation, when the existing sealing structures are used, after the cooling liquid absorbs more heat, the heat dissipation effect is reduced, the long-time heat dissipation effect cannot be achieved, and the use is inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a special seal structure of in-wheel motor to the axis of rotation that provides in solving above-mentioned background art is relatively poor with sealed effect between the sealed apron, intakes easily, and the relatively poor problem of radiating effect.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a special seal structure of in-wheel motor, includes closing plate and axis of rotation, inlay one side of closing plate and install the oil blanket ring, the peripheral fixed mounting in one side of closing plate has the go-between, the inside intermediate position of closing plate rotates installs and rotates the piece, axis of rotation fixed mounting is in the inside of rotating the piece, just the surface intermediate position fixed mounting who rotates the piece has seal bearing, seal bearing's surface with the closing plate is fixed connection mutually, the equal fixed mounting in inside both sides of rotating the piece has wear-resisting sealing ring, wear-resisting sealing ring with the both sides of closing plate contact.

Preferably, the rotating member has an i-shaped structure, and two ends of the rotating member are respectively located at two sides of the sealing plate.

Preferably, a cavity ring is arranged in the sealing plate, and cooling liquid is injected into the cavity ring.

Preferably, fins are uniformly and fixedly mounted on one side of the sealing plate, and heat absorption holes and heat dissipation holes are formed in two sides of each fin respectively.

Preferably, the fin is of an annular structure, one end of the fin is located outside the sealing plate, and the other end of the fin penetrates through the sealing plate and extends into the cavity ring.

Preferably, the heat absorbing holes on the fins are located inside the cavity ring, and the heat dissipating holes on the fins are located outside the sealing plate.

Preferably, the volume of the cooling liquid is less than half of the volume of the cavity ring.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a be equipped with and rotate the piece, and be equipped with sealed bearing and wear-resisting sealing ring between rotation piece and closing plate for the leakproofness between rotation piece and the closing plate strengthens, and is equipped with the oil blanket ring, avoids water to flow in the inside of outside in-wheel motor from one side of closing plate, improves sealed effect, and then improves in-wheel motor's life.

2. The utility model discloses a be equipped with the cavity ring, be equipped with the coolant liquid in the inside of cavity ring, and be equipped with the fin, be equipped with heat absorption hole and louvre on the fin, and then be convenient for with the heat conduction of coolant liquid absorption to the fin on to through fin conduction to in the outside air, improve the radiating effect to the in-wheel motor, avoid the heat to pile up, stability and life when improving the in-wheel motor operation.

Drawings

Fig. 1 is a front sectional view of the structure of the present invention.

Fig. 2 is a partial enlarged view of a position a in the structure of the present invention.

Fig. 3 is a schematic structural diagram of the fin in the structure of the present invention.

Fig. 4 is a schematic structural view of the rotating member in the structure of the present invention.

In the figure: 1. a sealing plate; 2. a rotating shaft; 3. an oil seal ring; 4. a connecting ring; 5. a rotating member; 6. sealing the bearing; 7. a wear-resistant seal ring; 8. a cavity ring; 9. cooling liquid; 10. a fin; 11. a heat absorption hole; 12. and (4) heat dissipation holes.

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.

The utility model provides a special seal structure of in-wheel motor as shown in fig. 1-4, including closing plate 1 and axis of rotation 2, one side of closing plate 1 is inlayed and is installed oil seal ring 3, the peripheral fixed mounting in one side of closing plate 1 has go-between 4, the inside intermediate position of closing plate 1 rotates and installs rotation piece 5, it is i-shaped structure to rotate piece 5, and the both ends of rotating piece 5 are located the both sides of closing plate 1 respectively, 2 fixed mounting of axis of rotation are in the inside of rotating piece 5, and the surface intermediate position fixed mounting who rotates piece 5 has seal bearing 6, seal bearing 6's surface and closing plate 1 looks fixed connection, the equal fixed mounting in inside both sides of rotating piece 5 has wear-resisting sealing ring 7, wear-resisting sealing ring 7.

Cavity ring 8 has been seted up to closing plate 1's inside, and the inside injection of cavity ring 8 has coolant liquid 9, the volume of coolant liquid 9 is less than the volumetric half of cavity ring 8, the even fixed mounting in one side of closing plate 1 has fin 10, and heat absorption hole 11 and louvre 12 have been seted up respectively to the both sides of fin 10, fin 10 is the loop configuration, and the one end of fin 10 is located closing plate 1's outside, closing plate 1 is run through to fin 10's the other end, and extend to the inside of cavity ring 8, heat absorption hole 11 on the fin 10 is located the inside of cavity ring 8, louvre 12 on the fin 10 is located closing plate 1's outside.

Referring to fig. 1 and 2, the present invention provides a rotary sealing plate for a vehicle, which comprises a rotary member 5, a sealing bearing 6 and a wear-resistant sealing ring 7 provided on the outer surface of the rotary member 5, and a sealing plate 1 having a strong rotational stability and a strong sealing effect to ensure a smooth rotation of a rotary shaft 2, and a connecting ring 4 and an oil seal ring 3 provided on one side of the sealing plate 1, so as to fixedly connect the present invention to an external hub, thereby improving the sealing performance during connection, a cavity ring 8 provided inside the sealing plate 1, a cooling liquid 9 provided inside the cavity ring 8, and a fin 10 provided on both sides of the fin 10, wherein the sealing plate 1 rotates, and the cooling liquid 9 flows inside the cavity ring 8 due to gravity, thereby conducting heat from one side of the sealing plate 1 to the inside of the cooling liquid 9, when sealing plate 1 rotates, coolant liquid 9 flows through from heat absorption hole 11 on fin 10, heat conduction in coolant liquid 9 to fin 10 on, and through the heat conduction effect, conduction to the other end of fin 10, and because sealing plate 1 carries out the translation when rotating, make outside wind pass louvre 12, and then be convenient for with heat conduction to the outside air on the fin 10, the realization conducts the heat of sealing plate 1 one side, improve in-wheel motor's radiating effect, improve in-wheel motor's life.

This practical theory of operation: when the utility model is used, the connecting ring 4 and the oil seal ring 3 are arranged on one side of the sealing plate 1, which is convenient for fixedly connecting the utility model on an external wheel hub, improves the sealing performance during connection, and the utility model is provided with the rotating part 5, the outer surface of the rotating part 5 is provided with the seal bearing 6 and the wear-resistant seal ring 7, thereby having stronger rotating stability and stronger sealing effect when the sealing plate 1 rotates, ensuring that the rotating shaft 2 can rotate stably, the cavity ring 8 is arranged inside the sealing plate 1, the cooling liquid 9 is arranged inside the cavity ring 8, furthermore, when the utility model is used, the sealing plate 1 rotates, the cooling liquid 9 flows inside the cavity ring 8 due to the gravity effect, the heat on one side of the sealing plate 1 is conducted to the inside of the cooling liquid 9, the fin 10 is arranged, the heat absorption holes 11 and the heat dissipation holes 12 are respectively arranged on both sides of the fin 10, when sealing plate 1 rotates, coolant liquid 9 flows through from heat absorption hole 11 on fin 10, heat conduction in coolant liquid 9 to fin 10 on, and through the heat conduction effect, conduction to the other end of fin 10, and because sealing plate 1 carries out the translation when rotating, make outside wind pass louvre 12, and then be convenient for with heat conduction to the outside air on the fin 10, the realization conducts the heat of sealing plate 1 one side, improve in-wheel motor's radiating effect, improve in-wheel motor's life.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a special seal structure of in-wheel motor, includes closing plate (1) and axis of rotation (2), its characterized in that: inlay one side of closing plate (1) and install oil seal ring (3), the peripheral fixed mounting in one side of closing plate (1) has go-between (4), the inside intermediate position of closing plate (1) rotates and installs rotation piece (5), axis of rotation (2) fixed mounting be in the inside of rotating piece (5), just the surface intermediate position fixed mounting who rotates piece (5) has sealed bearing (6), the surface of sealed bearing (6) with closing plate (1) looks fixed connection, the equal fixed mounting in inside both sides of rotating piece (5) has wear-resisting sealing ring (7), wear-resisting sealing ring (7) with the both sides of closing plate (1) contact.

2. The sealing structure special for the in-wheel motor according to claim 1, wherein: the rotating piece (5) is of an I-shaped structure, and two ends of the rotating piece (5) are respectively located on two sides of the sealing plate (1).

3. The sealing structure special for the in-wheel motor according to claim 1, wherein: a cavity ring (8) is arranged in the sealing plate (1), and cooling liquid (9) is injected into the cavity ring (8).

4. A sealing structure dedicated to an in-wheel motor according to claim 3, wherein: fins (10) are uniformly and fixedly mounted on one side of the sealing plate (1), and heat absorption holes (11) and heat dissipation holes (12) are formed in two sides of each fin (10) respectively.

5. The sealing structure special for the in-wheel motor according to claim 4, wherein: the fin (10) is of an annular structure, one end of the fin (10) is located outside the sealing plate (1), and the other end of the fin (10) penetrates through the sealing plate (1) and extends to the inside of the cavity ring (8).

6. The sealing structure special for the in-wheel motor according to claim 5, wherein: the heat absorption holes (11) in the fins (10) are located inside the cavity ring (8), and the heat dissipation holes (12) in the fins (10) are located outside the sealing plate (1).

7. A sealing structure dedicated to an in-wheel motor according to claim 3, wherein: the volume of the cooling liquid (9) is less than half of the volume of the cavity ring (8).