CN212022198U - Wheel hub assembly and car - Google Patents
Wheel hub assembly and car Download PDFInfo
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- CN212022198U CN212022198U CN201922124669.2U CN201922124669U CN212022198U CN 212022198 U CN212022198 U CN 212022198U CN 201922124669 U CN201922124669 U CN 201922124669U CN 212022198 U CN212022198 U CN 212022198U
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Abstract
A wheel hub assembly and car, wheel hub assembly includes: the hub bearing sequentially comprises a hub shaft, a bearing inner ring and a bearing outer ring from inside to outside along the radial direction, and the hub shaft is connected with the hub; the shell is positioned between the hub and the hub bearing, a hub space is enclosed by the shell and the hub bearing, the hub space comprises a first cavity, and the first cavity is communicated with the outside; the brake is located in the first cavity and comprises a brake shoe and a brake drum arranged on the periphery of the brake shoe, the brake shoe is connected with the shell, and the brake drum is fixedly connected with the hub shaft. The utility model discloses help guaranteeing the braking effect of stopper, improve driving safety.
Description
Technical Field
The utility model relates to an automobile manufacturing technical field especially relates to a wheel hub assembly and car.
Background
In order to slow down or even stop a running vehicle or to keep the speed of a vehicle running downhill stable, it is necessary to use brakes to exert a force on the vehicle that counteracts the movement or the tendency of movement.
The brakes used in various automobiles at present can be divided into drum type and disc type. They are based on the principle that a fixed non-rotating part (brake shoe or caliper) presses with a certain force a part (brake drum or disc) that rotates with the wheel, thereby forcing the wheel to brake.
The drum brake has the advantages of less brake pad abrasion, lower cost, easy maintenance and the like, so the parking brake (commonly called hand brake) of the common automobile adopts the drum brake.
However, the connection of the drum brake to the hub is still to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model provides a problem provide a wheel hub assembly and car helps guaranteeing the braking effect of stopper, improves and drives safety.
In order to solve the above problem, the utility model provides a hub assembly, include: the hub bearing sequentially comprises a hub shaft, a bearing inner ring and a bearing outer ring from inside to outside along the radial direction, and the hub shaft is connected with the hub; the shell is positioned between the hub and the hub bearing, a hub space is enclosed by the shell and the hub bearing, the hub space comprises a first cavity, and the first cavity is communicated with the outside; the brake is located in the first cavity and comprises a brake shoe and a brake drum arranged on the periphery of the brake shoe, the brake shoe is connected with the shell, and the brake drum is fixedly connected with the hub shaft.
Optionally, the hub space further includes: a second chamber, sealed, axially aligned with the first chamber; wherein the second chamber comprises: the device comprises auxiliary chambers and a main chamber which are arranged from inside to outside along the radial direction, wherein the auxiliary chambers comprise first auxiliary chambers.
Optionally, the hub assembly further includes: a driver located within the main chamber; the speed reducer is positioned in the first auxiliary chamber, the input end of the speed reducer is connected with the output end of the driver, and the output end of the speed reducer is fixedly connected with the hub shaft;
optionally, the sub-chamber further comprises a second sub-chamber located between the first chamber and the first sub-chamber; the hub assembly further includes: a resolver located within the second sub-chamber.
Optionally, the hub assembly further includes: a motor rotor support separating the second chamber into the main chamber, the first sub-chamber, and the second sub-chamber.
Optionally, the driver includes: the motor stator is fixedly arranged on the inner wall of the shell; and the motor rotor is fixedly arranged on the motor rotor bracket.
Optionally, the resolver includes: the rotary transformer stator is fixedly arranged on the bearing outer ring; and the rotary transformer rotor is fixedly arranged on the motor rotor bracket.
Optionally, the casing includes first casing, second casing and the third casing that sets gradually from inside to outside along the axial, first casing the second casing reaches the wheel hub bearing encloses into the second cavity, the second casing the third casing reaches the wheel hub bearing encloses into first cavity.
Optionally, the brake shoe is fixedly arranged on the third shell.
Correspondingly, the utility model also provides an automobile of including above-mentioned wheel hub assembly.
Compared with the prior art, the technical scheme of the utility model have following advantage:
the brake is located in the first cavity, the brake includes the brake shoe and locates the brake drum of brake shoe periphery, the brake shoe is connected the casing, the brake drum with wheel hub axle fixed connection. During the braking process of the automobile, the brake shoe presses the brake drum to generate braking force, and the brake drum is fixedly connected with the hub shaft, so that the rotating speed of the brake drum and the hub bearing is reduced until the rotation of the brake drum and the hub bearing is stopped, and the rotation of the hub is stopped. Compare in the stopper is connected through the reduction gear and wheel hub bearing, the brake drum with wheel hub axle direct fixed connection can avoid the reduction gear trouble to influence the braking effect of stopper to guarantee that the driver is when carrying out the braking operation, the stopper can in time be to wheel hub bearing reaches wheel hub produces the braking, thereby reduces the risk of taking place the incident.
Drawings
Fig. 1 is a schematic structural view of a wheel hub assembly according to an embodiment of the present invention.
Detailed Description
Analysis is now made in connection with a hub assembly comprising: the hub bearing is positioned on the central shaft of the hub; the shell and the hub bearing enclose a hub space; the speed reducer and the brake are both located in the hub space, the output end of the brake is connected with the input end of the speed reducer, and the output end of the speed reducer is connected with the hub bearing.
The stopper is connected with the wheel hub bearing through the reduction gear, has certain safety risk, and its reason lies in: when the speed reducer breaks down, the braking torque output by the brake is difficult to output to the hub bearing and the hub through the speed reducer, so that the brake is difficult to brake the automobile in time, and safety accidents are easy to happen.
The inventor researches the hub assembly, and through creative work, the inventor notices that the brake drum of the brake is directly and fixedly connected with the hub shaft, so that the brake effect of the brake is ensured, and the risk of safety accidents is reduced.
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
Referring to fig. 1, a hub assembly includes: the hub bearing 200 sequentially comprises a hub shaft 210, a bearing inner ring 220 and a bearing outer ring 230 from inside to outside along the radial direction y, wherein the hub shaft 210 is connected with the hub 100; a housing 300 located between the hub 100 and the hub bearing 200, wherein the housing 300 and the hub bearing 200 enclose a hub space.
In this embodiment, the hub axle 210 has a first end 211 and a second end 212 opposite to each other, and the first end 211 is fixedly connected to the hub 100 by a first connector 521. The definition from the inside to the outside along the axial direction x is based on the relative position of the second end portion 212 to the first end portion 211, wherein the second end portion 212 extends from the inside to the outside along the axial direction x relative to the first end portion 211.
The hub 100 has an opening 101, the opening 101 facing outwards in the axial direction x.
In this embodiment, the hub axle 210 and the bearing inner race 220 are fixed relative to each other by a lock nut 250.
The hub space includes a first chamber 410 and a second chamber. The first chamber 410 is in communication with the outside. The second chamber is sealed and arranged with the first chamber 410 in the axial direction x.
In this embodiment, the first chamber 410 is located outside the second chamber along the axial x-direction.
In this embodiment, the housing 300 includes a first housing 310, a second housing 320, and a third housing 330 sequentially arranged from inside to outside along the axial direction x. The first housing 310, the second housing 320 and the hub bearing 200 enclose the second chamber. The second housing 320, the third housing 330 and the hub bearing 200 enclose the first chamber 410.
In this embodiment, the first housing 310, the second housing 320 and the third housing 330 are fixedly connected by a second connecting member 522 at a side away from the hub axle 210 in the radial direction y.
The second chamber includes a sub-chamber 440 and a main chamber 430 arranged from inside to outside along the radial direction y, and the sub-chamber 440 includes a first sub-chamber 441 and a second sub-chamber 442. The first sub-chamber 441 and the second sub-chamber 442 are arranged from the inside to the outside along the axial direction x. The second sub-chamber 442 is located between the first chamber 410 and the first sub-chamber 441.
In this embodiment, the hub assembly further includes: a motor rotor support 623, the motor rotor support 623 dividing the second chamber into the main chamber 430, the first sub-chamber 441, and the second sub-chamber 442.
In this embodiment, a protrusion 321 is disposed on one side of the second casing 320 facing the first casing 310, and a first sealing ring 511 is disposed between the protrusion 321 and the motor rotor support 623.
The hub assembly further includes: and a second seal ring 512, wherein the second seal ring 512 is arranged between the motor rotor support 623 and the side wall of the hub shaft 210.
In this embodiment, a third sealing ring 513 is disposed between the first housing 310 and the sidewall of the hub axle 210, and the third sealing ring 513 is close to the first end 211 of the hub axle 210.
In this embodiment, the third housing 330 is fixedly connected to the suspension 800 of the vehicle through a third connecting member 523.
When the automobile is traveling, the first housing 310, the second housing 320, and the third housing 330 do not rotate together with the hub 100.
In this embodiment, the second housing 320 and the bearing outer race 230 are fixedly connected by a fourth connecting member 524.
The hub assembly further includes: the brake 610 is located in the first chamber 410, the brake 610 includes a brake shoe 611 and a brake drum 612 disposed on an outer periphery of the brake shoe 611, the brake shoe 611 is connected to the housing 300, and the brake drum 612 is fixedly connected to the hub shaft 210.
The brake shoe 611 is fixedly disposed on the third housing 330. In this embodiment, the brake shoe 611 and the third housing 330 are fixedly connected by a fifth connecting member 525.
In this embodiment, the brake drum 612 and the hub axle 210 are fixed by a spline or a key groove.
The brake drum 612 rotates with the hub 100 as the vehicle travels. The brake 610 further comprises a wheel cylinder, and during braking, a piston of the wheel cylinder is adapted to push the brake shoe 611 to press the brake drum 612, so that the brake drum 612 is subjected to friction to decelerate. Since the brake drum 612 is directly and fixedly connected with the hub axle 210, when the brake drum 612 is subjected to friction deceleration, the hub bearing 200 and the hub 100 can be forced to stop rotating, so that when a driver performs braking operation, the brake 610 can timely brake the hub bearing 200 and the hub 100, and the risk of safety accidents is reduced.
The hub assembly further includes: a driver 620, said driver 620 being located within said main chamber 430.
The driver 620 includes: the motor stator 621 is fixedly arranged on the inner wall of the shell 300; and the motor rotor 622 is fixedly arranged on the motor rotor support 623.
In this embodiment, the motor stator 621 is fixedly disposed on the first housing 310.
Since the first housing 310 does not rotate together with the hub 100 while the automobile is traveling, the motor stator 621 does not rotate together with the hub 100.
When the vehicle travels, the motor rotor support 623 and the motor rotor 622 rotate together with the wheel hub 100.
The hub assembly further includes: and the speed reducer is positioned in the first sub-chamber 441, the input end of the speed reducer is connected with the output end of the driver 620, and the output end of the speed reducer is fixedly connected with the hub shaft 210.
In this embodiment, the speed reducer includes: the sun gear 710, the said sun gear 710 is fixedly connected with said motor rotor support 623. The sun gear 710 serves as an input end of the speed reducer, and the driving force output by the driver 620 is transmitted to the sun gear 710 through the motor rotor support 623.
In this embodiment, the speed reducer further includes: and a ring gear 720, wherein the ring gear 720 is arranged by taking the sun gear 710 as a center, and the ring gear 720 is fixedly connected with the first housing 310 through a sixth connecting piece 526.
In this embodiment, the speed reducer further includes: a plurality of planet wheels 730, the planet wheels 730 being arranged around the sun wheel 710, the planet wheels 730 being in mesh with the sun wheel 710, and the planet wheels 730 also being in mesh with the ring gear 720.
In this embodiment, the speed reducer further includes: and the planet carrier 740 is connected with the planet wheel 730, and the planet carrier 740 is connected with the planet wheel 730. The planet carrier 740 serves as an output end of the speed reducer.
In this embodiment, the first connecting member 521 also fixedly connects the carrier 740 to the first end 211 of the hub axle 210. The driving torque output by the carrier 740 is transmitted to the hub bearing 200 and the hub 100, so as to drive the wheels of the automobile to rotate.
In this embodiment, the speed reducer further includes: planet pins 760, the planet pins 760 being located on the central axis of the planet carrier 740, the planet pins 760 being connected to the planet carrier 740.
In this embodiment, the speed reducer further includes: a cover plate 750, where the cover plate 750 is fixedly connected to the ring gear 720 via a seventh connection 527, and the cover plate 750 is disposed between the planet gear 730 and the motor rotor support 623.
A fourth sealing ring 514 is arranged between the cover plate 750 and the motor rotor support 623.
The hub assembly further includes: a resolver 630, the resolver 630 being located within the second sub-chamber 442.
The resolver 630 is adapted to measure the angular rotational displacement and the angular velocity of the hub bearing 200.
The resolver 630 includes: the rotational stator 631, the rotational stator 631 is fixedly arranged on the bearing outer ring 230; and the rotary transformer 632 is fixedly arranged on the motor rotor support 623.
When the automobile travels, the rotary transformer 632 rotates together with the motor rotor support 623.
The utility model also provides an automobile of including above-mentioned wheel hub assembly.
The automobile further includes: a suspension 800, said suspension 800 being located outside the opening 101 of said hub 100, said suspension 800 being fixedly connected to said housing 300.
In this embodiment, the suspension 800 and the third housing 330 are fixedly connected by a third connecting member 523.
When the brake shoe 611 needs to be repaired or replaced, the hub assembly is first detached from the suspension 800 by removing the third link 523. The third housing 330 is then removed from the remainder of the hub assembly along with the brake shoes 611 by removing the second connector 522. Finally, the fifth connecting member 525 is removed to separate the brake shoe 611 from the third housing 330, so that the brake shoe 611 can be repaired or replaced, thereby facilitating the operation and improving the operation efficiency.
The automobile further includes: the output end of the controller 810 is connected with the driver 620, the input end of the controller 810 is provided with a positive connection and a negative connection, and the controller 810 is connected with the driver 620 through a three-phase connection terminal.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.
Claims (10)
1. A hub assembly, comprising:
the hub bearing sequentially comprises a hub shaft, a bearing inner ring and a bearing outer ring from inside to outside along the radial direction, and the hub shaft is connected with the hub;
the shell is positioned between the hub and the hub bearing, a hub space is enclosed by the shell and the hub bearing, the hub space comprises a first cavity, and the first cavity is communicated with the outside;
the brake is located in the first cavity and comprises a brake shoe and a brake drum arranged on the periphery of the brake shoe, the brake shoe is connected with the shell, and the brake drum is fixedly connected with the hub shaft.
2. The hub assembly of claim 1, wherein the hub space further comprises: a second chamber, sealed, axially aligned with the first chamber;
wherein the second chamber comprises: the device comprises auxiliary chambers and a main chamber which are arranged from inside to outside along the radial direction, wherein the auxiliary chambers comprise first auxiliary chambers.
3. The hub assembly of claim 2, further comprising:
a driver located within the main chamber;
the speed reducer is located in the first auxiliary chamber, the input end of the speed reducer is connected with the output end of the driver, and the output end of the speed reducer is fixedly connected with the hub shaft.
4. The hub assembly of claim 3, wherein the secondary chamber further comprises a second secondary chamber located between the first chamber and the first secondary chamber;
the hub assembly further includes: a resolver located within the second sub-chamber.
5. The hub assembly of claim 4, further comprising: a motor rotor support separating the second chamber into the main chamber, the first sub-chamber, and the second sub-chamber.
6. The hub assembly of claim 5, wherein the driver comprises:
the motor stator is fixedly arranged on the inner wall of the shell;
and the motor rotor is fixedly arranged on the motor rotor bracket.
7. The hub assembly of claim 5, wherein the resolver comprises:
the rotary transformer stator is fixedly arranged on the bearing outer ring;
and the rotary transformer rotor is fixedly arranged on the motor rotor bracket.
8. The hub assembly of claim 2, wherein the housing includes a first housing, a second housing, and a third housing disposed in an axial direction from inside to outside, the first housing, the second housing, and the hub bearing enclosing the second chamber, and the second housing, the third housing, and the hub bearing enclosing the first chamber.
9. The hub assembly of claim 8, wherein said brake shoe is fixedly attached to said third shell.
10. A motor vehicle comprising a hub assembly according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922124669.2U CN212022198U (en) | 2019-12-02 | 2019-12-02 | Wheel hub assembly and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922124669.2U CN212022198U (en) | 2019-12-02 | 2019-12-02 | Wheel hub assembly and car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212022198U true CN212022198U (en) | 2020-11-27 |
Family
ID=73478338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922124669.2U Active CN212022198U (en) | 2019-12-02 | 2019-12-02 | Wheel hub assembly and car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212022198U (en) |
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2019
- 2019-12-02 CN CN201922124669.2U patent/CN212022198U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230902 Address after: Room 3264, Floor 3, No. 118, Sheng'an Road, Xiasha Street, Qiantang District, Hangzhou City, Zhejiang Province, 310000 (self declaration) Patentee after: Hangzhou Qianneng Intelligent Technology Co.,Ltd. Address before: 201800 J, building 2, 988 Jingtang Road, Jiading District, Shanghai Patentee before: Kuidi Intelligent Technology (Shanghai) Co.,Ltd. |
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| TR01 | Transfer of patent right |