CN219564641U - Lightweight threaded locking block hub and hub motor - Google Patents

Abstract

The utility model relates to a lightweight hub with threaded locking blocks and a hub motor, which belong to the technical field of hub motors and comprise a rim and a spoke, wherein the rim is fixed on the spoke, end cover connecting parts are respectively integrally formed at two end sides of the spoke, one end cover connecting part is arranged at the inner ring side of the spoke, the other end cover connecting part is arranged at the outer ring side of the spoke, the end cover connecting part is a ring block with folded edges, the vertical section of the ring block is L-shaped, an annular groove is formed between the folded edges at the tail end of the L-shaped ring block and the side wall of the spoke, a plurality of locking blocks are uniformly distributed in the annular groove, threaded holes are formed in the end faces of the ring block, the locking blocks are correspondingly arranged at one side of the threaded holes, and the threaded holes penetrate through the locking blocks. According to the utility model, the connecting part of the hub end cover is arranged by adopting the L-shaped ring blocks, so that the use of materials is reduced, and the quality of the hub is greatly reduced.

Description

Lightweight threaded locking block hub and hub motor

Technical Field

The utility model relates to the technical field of hub motors, in particular to a lightweight hub with a threaded locking block and a hub motor.

Background

The in-wheel motor technology is also called in-wheel motor technology, and is characterized in that a power device, a transmission device and a braking device are integrated into a hub, so that the mechanical part of the electric vehicle is greatly simplified.

The hub motor comprises a hub serving as a rotor and stator components arranged inside the hub, end covers are arranged on two sides of the hub, the general end covers are fixed on the hub through screws, the hub comprises a rim and spokes, the spokes are supporting rings, the tire is generally arranged on the rim, and the end covers are fixed on the end faces of the spokes through screws.

In the prior art, each manufacturer needs to make the motor have higher efficiency and torque under the same size of the motor, at this time, the space inside the motor needs to be enlarged (namely, the thickness of the spoke is reduced, the thinner the spoke is, the larger the space inside the motor is, so that the space can be fully utilized), but the thinner the spoke is, the end cover cannot be well fixed on the spoke, at this time, a circle of integrally formed annular blocks are arranged on the end face side of the spoke, and threaded holes are formed in the annular blocks so as to be used for fixing the end cover.

However, the two end surfaces of the spoke are provided with a whole circle of annular blocks, so that the motor has larger overall mass and higher material cost.

Disclosure of Invention

In order to solve the problems, the utility model provides the lightweight hub with the threaded locking block and the hub motor, which greatly reduce the mass of the hub and save the manufacturing cost.

The utility model provides a lightweight hub with a threaded locking block and a hub motor, which adopts the following technical scheme:

on one hand, the utility model provides a lightweight threaded locking piece hub, which adopts the following technical scheme.

The utility model provides a lightweight threaded locking piece wheel hub, includes rim and spoke, the rim is fixed on the spoke, integrated into one piece has end cover connecting portion respectively, one side end cover connecting portion set up the inner circle side of spoke, the opposite side end cover connecting portion set up the outer lane side of spoke, end cover connecting portion are the ring piece that has the hem, and the vertical section of ring piece is L shape, the terminal hem of L shape ring piece with form the annular groove between the spoke lateral wall, the inside equipartition of annular groove has a plurality of locking pieces, has seted up the screw hole on the ring piece terminal surface, the locking piece corresponds the setting is in screw hole one side, the screw hole runs through the locking piece sets up.

Through adopting above-mentioned technical scheme, the end cover connecting portion adopts the annular piece setting of L shape, has reduced the use of material to greatly alleviateed wheel hub's quality, through the annular groove inboard at L shape annular piece increase corresponding screw thread locking piece, and set up the screw hole on the screw thread locking piece, satisfy the fixed of screw.

Preferably, in order to improve the fixing effect between the locking piece and the spoke, the locking piece is fixed with the spoke through welding.

On the other hand, the utility model also provides a hub motor applying the lightweight hub with the threaded locking block, and the following technical scheme is adopted.

The hub motor comprises a stator assembly and two side end covers, wherein the stator assembly is arranged in the middle of a hub, the stator assembly comprises a motor shaft, a stator core is fixed in the middle of the motor shaft, through holes are formed in the middle of the end covers on two sides, the motor shaft penetrates through the through holes, a bearing is arranged between the motor shaft and the through holes, and the end covers on two sides are respectively fixed on the hub through screws;

a plurality of magnetic steel sheets are uniformly distributed and fixed on the inner wall of the spoke.

The rim surface is provided with air tap holes, and the air tap holes are formed in one side of the end cover connecting part close to the inner ring side of the spoke.

And a relief hole is formed in the surface of the end cover close to one side of the air tap hole.

Preferably, a shaft seal is further arranged between the motor shaft and the through hole of the end cover.

By adopting the technical scheme, dust entering into the bearing can be reduced by the shaft seal, so that the service life of the bearing can be prolonged.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. the wheel hub end cover connecting part adopts the L-shaped ring block to be arranged, the use of materials is reduced, the quality of the wheel hub is greatly reduced, the corresponding threaded locking block is added to the inner side of the annular groove of the L-shaped ring block, the threaded locking block is provided with a threaded hole to meet the fixation of a screw, meanwhile, because the end cover is fixed on the side surface of the wheel hub, the whole stress direction of the screw is in the vertical direction when the wheel hub works, the threaded locking block can play a supporting effect in the corresponding vertical direction, and therefore, when the screw is fixed on the threaded locking block, other parts of the end cover connecting part are in a state of empty grooves, and the conditions of poor screw fastening effect and deformation of the end cover connecting part can not occur;

2. the hub motor adopts the hub with the threaded locking block, and directly and effectively reduces the mass of the hub motor, thereby improving the smoothness and grounding performance of the whole vehicle.

Drawings

FIG. 1 is a schematic view of a hub embodying the present utility model.

Fig. 2 is a schematic view of a structure for embodying a spoke in an embodiment of the present utility model.

Fig. 3 is a schematic structural view of an in-wheel motor according to an embodiment of the present utility model.

Reference numerals illustrate: 1. a rim; 2. a spoke; 21. an end cap connection portion; 22. an annular groove; 23. a threaded locking piece; 24. a threaded hole; 3. an end cap; 4. a motor shaft; 5. and an air tap hole.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-3.

The embodiment of the utility model discloses a lightweight wheel hub with a threaded locking block, which comprises a wheel rim 1 and a wheel spoke 2, wherein the wheel rim 1 is fixed on the wheel spoke 2, end cover 3 connecting parts 21 are respectively integrally formed at two end sides of the wheel spoke 2, one end cover 3 connecting part 21 is arranged at the inner ring side of the wheel spoke 2, the other end cover 3 connecting part 21 is arranged at the outer ring side of the wheel spoke 2, the end cover 3 connecting part 21 at the side is used for giving way to an air tap in a subsequent wheel hub motor, the end cover 3 connecting part 21 is a ring block with a folded edge, the vertical section of the ring block is L-shaped, an annular groove 22 is formed between the folded edge at the tail end of the L-shaped ring block and the side wall of the wheel spoke 2, a plurality of locking blocks 23 are uniformly distributed in the annular groove 22, the locking blocks 23 and the wheel spoke 2 are fixed through welding, threaded holes 24 are formed in the end surfaces of the ring block, the locking blocks 23 are correspondingly arranged at one side of the threaded holes 24, and the threaded holes 24 are arranged through the locking blocks 23.

The embodiment of the utility model relates to a lightweight threaded locking piece hub, which has the implementation principle that:

the end cover 3 connecting portion 21 adopts the setting of L shape's ring piece, the use of material has been reduced, and greatly alleviateed wheel hub's quality, through the annular groove 22 inboard at L shape ring piece increases corresponding screw thread locking piece 23, and set up screw hole 24 on screw thread locking piece 23, satisfy the fixed of screw, because end cover 3 is fixed in wheel hub's side, wheel hub during operation, the holistic stress direction of screw is in vertical direction, screw thread locking piece 23 can play the effect of supporting in corresponding vertical direction, consequently, when the screw is fixed on screw thread locking piece 23, the state that other positions of end cover 3 connecting portion 21 are the empty slot, the condition that screw fastening effect is poor and end cover 3 connecting portion 21 warp also can not appear.

The embodiment of the utility model also discloses a hub motor applying the lightweight hub with the threaded locking block.

Referring to fig. 3, including stator module and both sides end cover 3, stator module sets up at the wheel hub middle part, and stator module includes motor shaft 4, and motor shaft 4 middle part is fixed with stator core, and the through-hole has been seted up at both sides end cover 3 middle part, and motor shaft 4 runs through the through-hole setting, and is equipped with the bearing between motor shaft 4 and the through-hole, still is equipped with the bearing seal between the through-hole of motor shaft 4 and end cover 3, and both sides end cover 3 is fixed on wheel hub through the screw respectively, and the equipartition is fixed with a plurality of magnetic steel sheets on the spoke 2 inner wall.

Referring to fig. 3, the rim 1 has air tap holes 5 formed on the surface thereof, the air tap holes 5 are formed on the side of the connecting portion 21 of the end cover 3 near the inner ring side of the spoke 2, and the end cover 3 near the air tap holes 5 has a relief hole formed on the surface thereof.

The hub motor adopts the lightweight threaded locking piece hub, so that the mass of the hub motor is directly and effectively reduced, and the smoothness and the grounding performance of the whole automobile can be improved.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (6)

1. A lightweight threaded locking piece wheel hub, its characterized in that: including rim (1) and spoke (2), rim (1) is fixed on spoke (2), spoke (2) both ends side integrated into one piece has end cover (3) connecting portion (21) respectively, one side end cover (3) connecting portion (21) set up the inner circle side of spoke (2), opposite side end cover (3) connecting portion (21) set up the outer lane side of spoke (2), end cover (3) connecting portion (21) are the ring piece that has the hem, and the vertical cross-section of ring piece is L shape, L shape ring piece terminal hem with form annular groove (22) between spoke (2) lateral wall, a plurality of locking pieces (23) have been seted up on the ring piece terminal surface to annular groove (22) inside equipartition, locking piece (23) correspond and set up screw hole (24) one side, screw hole (24) run through locking piece (23) set up.

2. The lightweight threaded locking piece hub according to claim 1, wherein: the locking piece (23) and the spoke (2) are fixed through welding.

3. A hub motor employing the lightweight threaded locking piece hub of claim 2, characterized in that: the motor comprises a stator assembly and two side end covers (3), wherein the stator assembly is arranged in the middle of a hub, the stator assembly comprises a motor shaft (4), a stator core is fixed in the middle of the motor shaft (4), through holes are formed in the middle of the end covers (3) on two sides, the motor shaft (4) penetrates through the through holes, a bearing is arranged between the motor shaft (4) and the through holes, and the end covers (3) on two sides are respectively fixed on the hub through screws;

a plurality of magnetic steel sheets are uniformly distributed and fixed on the inner wall of the spoke (2).

4. The in-wheel motor according to claim 3, wherein: the rim (1) is provided with air tap holes (5) on the surface, and the air tap holes (5) are arranged on one side of a connecting part (21) of the end cover (3) close to the inner ring side of the spoke (2).

5. The in-wheel motor according to claim 4, wherein: and a shaft seal is further arranged between the motor shaft (4) and the through hole of the end cover (3).

6. The in-wheel motor according to claim 4, wherein: and a yielding hole is formed in the surface of the end cover (3) close to one side of the air tap hole (5).