CN220883925U

CN220883925U - Electric vehicle hub

Info

Publication number: CN220883925U
Application number: CN202322829265.XU
Authority: CN
Inventors: 陶锡朋
Original assignee: Taizhou Guangchi Machinery Co ltd
Current assignee: Taizhou Guangchi Machinery Co ltd
Priority date: 2023-10-21
Filing date: 2023-10-21
Publication date: 2024-05-03
Anticipated expiration: 2033-10-21

Abstract

The application relates to an electric vehicle hub, which relates to the field of vehicle parts and comprises a hub body, a hub cover arranged on the hub body and an end cover arranged on the hub body, wherein the hub cover and the end cover are respectively positioned on two opposite sides of the hub body, a connecting part is arranged on the hub body and is used for abutting against the end cover, a bending part is arranged on one side of the connecting part, which is close to the hub body, the bending part is arranged at intervals with the hub body, a connecting hole is formed in the bending part, the connecting hole penetrates through the hub body and is used for penetrating and positioning a screw, the tapping device is abutted against the bending part, and as one end of the bending part is not supported by any object, the force of the tapping device acting on the surface of the bending part is transmitted to the connecting part, so that the surface of the bending part is not easy to deform and dent.

Description

Electric vehicle hub

Technical Field

The application relates to the field of automobile parts, in particular to an electric vehicle hub.

Background

The hub is a cylindrical metal piece with the inner contour of the tire supporting the tire and the center of the metal piece is arranged on the shaft.

The hub comprises a hub body, a hub cover and end covers, wherein the hub cover and the end covers are respectively positioned on two opposite sides of the hub body. In the process of installing the end cover on the hub body, screw holes for screws to penetrate are needed to be formed in the end cover and the hub body respectively, in the process of forming holes in the hub body, the surface of the hole of the hub body is depressed due to pressure given by the hole forming equipment, so that the surface of the hub is uneven, the subsequent processing is affected, and the improvement is needed.

Disclosure of utility model

In order to prevent the surface of the opening from being deformed and recessed easily, the application provides an electric vehicle hub.

The application provides an electric vehicle hub, which adopts the following technical scheme:

The utility model provides an electric motor car wheel hub, includes the wheel hub body, locates hub cap on the wheel hub body and locate end cover on the wheel hub body, the hub cap with the end cover is located respectively the relative both sides of wheel hub body, be equipped with connecting portion on the wheel hub body, connecting portion are used for the butt the end cover, connecting portion are close to one side of wheel hub body is equipped with the portion of bending, the portion of bending with wheel hub body interval sets up, the connecting hole has been seted up on the portion of bending, the connecting hole runs through the wheel hub body, the connecting hole supplies the screw to wear to set up the location.

Through adopting above-mentioned technical scheme, at the in-process of processing connecting hole, trompil equipment supports on the portion of bending, because the portion of bending one end does not have any object to support, transmits the connecting portion department with the force transfer of trompil equipment effect on the portion of bending surface, makes the portion of bending surface be difficult for deformation sunken. In addition, after the end cover is fixed on the hub body, the bending part and the connecting part are in threaded connection with the screw, so that the stability of connection is improved.

Preferably, the bending part comprises an elastic part arranged on the connecting part and a limiting part arranged on the elastic part, the connecting hole is formed in the elastic part, the limiting part is positioned on one side, close to the hub body, of the connecting part, and when the elastic part is not stressed, the distance between the limiting part and the hub body is in a range of 3 mm-5 mm.

Through adopting above-mentioned technical scheme, when in actual use, if the pressure of trompil equipment effect at the portion of bending is too big, changes the contained angle between portion of bending and the connecting portion, makes the portion of bending rotate to the direction that is close to the wheel hub body, makes the distance between spacing portion and the wheel hub body reduce gradually, and when spacing portion butt wheel hub body, the portion of bending is difficult for continuing to rotate to the direction that is close to the wheel hub body. When in actual use, the extending direction of the connecting hole is not easy to deviate due to overlarge deflection angle of the bending part.

Preferably, the limiting part and the hub body are provided with flanges, and the flanges are formed by stamping at the connecting holes.

Through adopting above-mentioned technical scheme, in actual course of working, need tapping at connecting hole and turn-ups department and attack the screw thread section, make through addding the turn-ups, be favorable to improving the area of screw thread with screw threaded connection, be favorable to improving joint strength.

Preferably, the hub cover is provided with a brake bowl, the hub cover is provided with a positioning ring, the positioning ring surrounds the periphery of the brake bowl, the positioning ring is attached to the brake bowl, the positioning ring is provided with a protruding piece, the protruding piece abuts against the brake bowl, and the brake bowl is positioned.

Through adopting above-mentioned technical scheme, after the wheel hub is installed on the electric motor car, after the electric motor car used for a long time, the brake bowl took place to wear to when unable use, inwards extrudeed the brake bowl and make the brake bowl deformation break away from and support tight piece, can take out the brake bowl, get rid of protruding piece, put into behind the new brake bowl, reprocess forms new protruding piece. Compared with the integrated forming of the brake bowl and the hub cover, the hub does not need to be replaced, and the economic efficiency of the hub is improved.

Preferably, the protruding member is a bump.

Through adopting above-mentioned technical scheme, make the brake bowl receive the pressure increase of protruding piece, make the brake bowl be difficult for taking place relative rotation with the holding ring between, be favorable to improving the location effect.

Preferably, the protruding points are arranged in a plurality, and the protruding points are distributed on the positioning ring around the axis of the brake bowl.

Through adopting above-mentioned technical scheme, fix the brake bowl through circumference bump, be favorable to improving the location effect.

Preferably, the hub body and the positioning ring are integrally formed.

Through adopting above-mentioned technical scheme, be favorable to reducing welding procedure, increase the joint strength between wheel hub body and the holding ring.

Preferably, a welding seam is arranged at the joint of the hub body and the hub cover, and the hub body and the hub cover are connected through the welding seam.

Through adopting above-mentioned technical scheme, when the hub cap appears damaging, can be along the welding seam with hub body and hub cap separation, with the hub cap and the hub body coupling after changing, be favorable to improving wheel hub's economic benefits.

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

1. The bending part is arranged, the punching equipment is propped against the bending part, and as one end of the bending part is not supported by any object, the force of the punching equipment acting on the surface of the bending part is transmitted to the connecting part, so that the surface of the bending part is not easy to deform and dent;

2. Through setting up spacing portion, be difficult for leading to the extending direction of connecting hole to take place to deviate because of the biggest angle of deflection of bending portion. ;

3. Through addding the turn-ups, be favorable to improving the area of the screw thread with screw threaded connection, be favorable to improving joint strength.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present embodiment.

Fig. 2 is a cross-sectional view of the present embodiment, mainly showing the structure of the hub body.

Fig. 3 is an enlarged view of the portion a in fig. 2, mainly showing the structure at the bent portion.

Reference numerals illustrate: 1. a hub body; 11. an inner ring; 12. an outer ring; 2. an end cap; 21. a threaded hole; 3. a hub cap; 31. a bearing chamber; 32. a positioning ring; 321. a protruding member; 3211. a bump; 33. a brake bowl; 4. a connection part; 41. a bending part; 411. an elastic part; 4111. a connection hole; 4112. flanging; 412. and a limiting part.

Detailed Description

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

The embodiment of the application discloses an electric vehicle hub. Referring to fig. 1 and 2, an electric vehicle hub comprises a hub body 1, a hub cover 3 and an end cover 2 are fixed on the hub body 1, the hub cover 3 and the end cover 2 are respectively positioned on two opposite sides of the hub body 1, a welding seam is formed at a joint between the hub cover 3 and the hub body 1, the hub cover 3 and the hub body 1 are fixedly connected through the welding seam, and the end cover 2 and the hub body 1 are fixedly connected through screws.

Referring to fig. 2 and 3, the hub body 1 includes an inner ring 11 and an outer ring 12, the inner ring 11 is welded to the hub cover 3, the outer ring 12 is located outside the inner ring 11, the inner ring 11 is disposed around the outer periphery of the inner ring 11, the outer ring 12 is welded to the inner ring 11, a connecting portion 4 is fixed to the outer ring 12, the connecting portion 4 is located on one side of the outer ring 12 away from the hub cover 3, the connecting portion 4 is located on one side of the outer ring 12 close to the inner ring 11, an annular welding seam is formed at a joint between the connecting portion 4 and the outer ring 12, and the connecting portion 4 is fixedly connected with the outer ring 12 through the annular welding seam. The one end that connecting portion 4 kept away from hub cap 3 is fixed with bending portion 41, and bending portion 41 includes elastic part 411 and spacing portion 412, and elastic part 411 is located the one side that connecting portion 4 is close to outer ring 12, and the contained angle that the concatenation formed between elastic part 411 and connecting portion 4 is the right angle, and spacing portion 412 is located the one end that connecting portion 4 was kept away from to elastic part 411, and spacing portion 412 is located the one end that elastic part 411 is close to hub cap 3, and the contained angle between spacing portion 412 and the elastic part 411 is the right angle. The limiting portion 412 and the elastic portion 411 are all arranged at intervals with the outer ring 12, the shortest distance between the limiting portion 412 and the outer ring 12 is within 3 mm-5 mm under the condition that the elastic portion 411 is not stressed, and the shortest distance between the limiting portion 412 and the outer ring 12 is 3mm in the embodiment. In this embodiment, the connecting portion 4, the elastic portion 411, and the limiting portion 412 are integrally formed.

Referring to fig. 2 and 3, a plurality of connection holes 4111 are formed in the elastic portion 411, the connection holes 4111 are uniformly distributed around the axial direction of the elastic portion 411 at equal intervals, the connection holes 4111 penetrate through the elastic portion 411 and the outer ring 12 in a direction parallel to the axial direction of the elastic portion 411, a flange 4112 is formed by punching at the positions of the elastic portion 411 and the outer ring 12, the flange 4112 is located at one side, close to the hub, of the corresponding elastic portion 411 and the outer ring 12, the flange 4112 is arranged around the periphery of the corresponding connection hole 4111, and in the subsequent processing process, a thread section is required to be tapped at the inner wall of the connection hole 4111 and the inner surface of the flange 4112, and the thread section is used for being connected with a screw.

In the installation process of an actual hub, the hub cover 3 is fixed on the inner ring 11 through circumferential seam welding, then the inner ring 11 and the outer ring 12 are welded and fixed, then the connecting part 4, the elastic part 411 and the limiting part 412 are welded on the outer ring 12, the connecting hole 4111 is formed at the elastic part 411 through a perforating device, in the perforating process, the elastic part 411 is transferred to the connecting part of the elastic part 411 and the connecting part 4 by pressure applied by perforating equipment, and acts on the connecting part 4, so that the periphery of the connecting hole 4111 is not prone to depression, when the pressure applied by the perforating equipment is too large, the elastic part 411 drives the limiting part 412 to gradually rotate towards the direction close to the outer ring 12 until the distance between the limiting part 412 and the outer ring 12 is zero, and when the limiting part 412 is abutted against the outer ring 12, an included angle between the elastic part 411 and the connecting part 4 is kept unchanged, the extending direction of the connecting hole 4111 is reduced, and the connecting part between the elastic part 411 and the connecting part 4 is not prone to fracture.

After the elastic part 411 and the connecting holes 4111 at the outer ring 12 are formed, the end cover 2 is provided with corresponding threaded holes 21, the inner wall of the connecting holes 4111 is tapped to form a threaded section, after the processing is finished, the end cover 2 is mounted on the outer ring 12, the elastic part 411 is abutted with the end cover 2, the positions and the number of the threaded holes 21 and the connecting holes 4111 are in one-to-one correspondence, the connecting holes 4111 and the threaded holes 21 are respectively provided with a screw, nuts are further connected to the screws in a threaded mode, and the cover plate is fixed on the outer ring 12 through the cooperation between the screws and the nuts, so that the hub mounting is finished.

Referring to fig. 1 and 2, a bearing chamber 31 is fixed at the axis of a hub cover 3 through welding, a rotating shaft of the bearing chamber 31 for a power supply vehicle is penetrated, a positioning ring 32 is fixed at one end of the hub cover 3 far away from the end cover 2, the positioning ring 32 is arranged around the periphery of the bearing chamber 31, the positioning ring 32 and the hub cover 3 are integrally formed, a brake bowl 33 is fixed on the hub cover 3, the positioning ring 32 is used for positioning the brake bowl 33, the brake bowl 33 is in a circular copper shape, and the outer wall of the brake bowl 33 is attached to the inner wall of the positioning ring 32. The retaining ring 32 is a coil in this embodiment.

Referring to fig. 1 and 2, a plurality of protruding parts 321 are formed on the inner wall of the positioning ring 32, the protruding parts 321 are protruding points 3211, the protruding points 3211 are uniformly distributed on the inner wall of the positioning ring 32 at equal intervals around the axis of the hub cover 3, the protruding points 3211 are uniformly distributed at equal intervals around the periphery of the brake bowl 33, the protruding points 3211 tightly support the periphery of the brake bowl 33 to position the brake bowl 33, and the brake bowl 33 is not easy to rotate relative to the positioning ring 32 after the hub is mounted on the electric vehicle, so that the braking effect is improved.

In the process of installing the brake bowl 33, the brake bowl 33 is placed in a cavity formed by splicing the bearing chamber 31 and the positioning ring 32, so that the outer wall of the brake bowl 33 is attached to the inner wall of the positioning ring 32, and the convex point 3211 protruding from the inner wall of the positioning ring 32 is pressed on the outer wall of the positioning ring 32 to tightly support the positioning ring 32 to fix the positioning ring 32, so that the convex point 3211 is machined more conveniently.

With the increase of the service time of the hub on the electric vehicle, the brake bowl 33 is damaged and needs to be replaced, at the moment, the brake bowl 33 is extruded to deform the brake bowl 33, the brake bowl 33 can be taken out, the protruding point 3211 is extruded towards the direction opposite to the protruding direction of the protruding point 3211, the protruding amplitude of the protruding point 3211 is reduced, a new brake pad is placed into the positioning ring 32, a pressing point is pressed on the outer wall of the positioning ring 32 again, and the protruding point 3211 is abutted against the positioning ring 32 again to position the positioning ring 32.

The implementation principle of the electric vehicle hub provided by the embodiment of the application is as follows: by adding the connecting portion 4, the limiting portion 412 and the elastic portion 411, when the connecting hole 4111 is formed, the notch is not easy to be left on the plane where the connecting hole 4111 is formed, which is beneficial to keeping the surface of the elastic portion 411 flat.

In addition, after the end cover 2 is mounted to the outer ring 12 by the screw and the nut, the screw hole, the elastic portion 411, and the connection hole 4111 on the outer ring 12, the elastic portion 411, and the flange 4112 on the outer ring 12 are uniformly screwed with the screw, and the connection strength between the end cover 2 and the hub body 1 is improved as compared with the screw hole and the connection hole 4111 on the hub body 1 screwed with the screw.

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

Claims

1. The utility model provides an electric motor car wheel hub, includes wheel hub body (1), locates hub cap (3) on wheel hub body (1) and locate end cover (2) on wheel hub body (1), hub cap (3) with end cover (2) are located respectively wheel hub body (1)'s relative both sides, its characterized in that: the novel wheel hub comprises a wheel hub body (1), and is characterized in that a connecting portion (4) is arranged on the wheel hub body (1), the connecting portion (4) is used for being abutted to the end cover (2), a bending portion (41) is arranged on one side, close to the wheel hub body (1), of the connecting portion (4), the bending portion (41) is arranged at intervals with the wheel hub body (1), a connecting hole (4111) is formed in the bending portion (41), the connecting hole (4111) penetrates through the wheel hub body (1), and the connecting hole (4111) is used for a screw to penetrate through for positioning.

2. An electric vehicle hub according to claim 1, wherein: the bending part (41) comprises an elastic part (411) arranged on the connecting part (4) and a limiting part (412) arranged on the elastic part (411), the connecting hole (4111) is formed in the elastic part (411), the limiting part (412) is located on one side, close to the hub body (1), of the connecting part (4), and when the elastic part (411) is not stressed, the distance between the limiting part (412) and the hub body (1) is in the range of 3 mm-5 mm.

3. An electric vehicle hub according to claim 2, wherein: the limiting part (412) and the hub body (1) are respectively provided with a flanging (4112), and the flanging (4112) is formed by stamping at the connecting hole (4111).

4. An electric vehicle hub according to claim 1, wherein: be equipped with brake bowl (33) on hub cap (3), be equipped with holding ring (32) on hub cap (3), holding ring (32) encircle the periphery setting of brake bowl (33), holding ring (32) laminating brake bowl (33), be equipped with protruding piece (321) on holding ring (32), protruding piece (321) support tightly brake bowl (33), right brake bowl (33) location.

5. An electric vehicle hub as in claim 4, wherein: the protruding piece (321) is a protruding point (3211).

6. An electric vehicle hub as in claim 5, wherein: the protruding points (3211) are arranged in a plurality, and the protruding points (3211) are distributed on the positioning ring (32) around the axis of the hub cover (3).

7. An electric vehicle hub as in claim 4, wherein: the hub body (1) and the positioning ring (32) are integrally formed.

8. An electric vehicle hub according to claim 1, wherein: the wheel hub body (1) with the junction of hub cap (3) is equipped with the welding seam, wheel hub body (1) with hub cap (3) are through the welding seam connection.