CN103963551A

CN103963551A - Stamping-formed automobile hub with embedded hollow structure in center

Info

Publication number: CN103963551A
Application number: CN201410151503.9A
Authority: CN
Inventors: 李春旦; 李磊
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-04-16
Filing date: 2014-04-16
Publication date: 2014-08-06
Also published as: CN204472426U; CN104015550A; CN104015550B

Abstract

The invention discloses a hub structure formed by a steel plate. The hub structure is mainly composed of a rim, a wheel arm and moment fasteners, wherein the wheel arm and the moment fastener are of an embedded hollow structure, and the wheel arm and the rim are of a welding structure. The rim is made of a hot-formed high-strength steel plate in an annealing state according to an existing traditional technology, the wheel arm is made of a hot-formed high-strength steel plate in an annealing state through stamping forming, necessary distances are reserved between the inner walls of spokes of the wheel arm and the center of form of the wheel arm spokes and between the outer walls of the spokes of the wheel arm and the center of form of the wheel arm spokes, in this way, a load-resistant structure which can resist a bending load is formed, and the inertia moment and the static moment of the wheel arm are greatly increased when the moment fasteners are embedded in the wheel arm; the wheel arm and the rim are placed in a shape change control quenching furnace after being welded so that quenching can be conducted, and thus the stress intensity can reach over 1400MPa. A super-light, high-strength and low-cost automobile hub is formed.

Description

Center has the drawing automotive hub of inlaid hollow structure

Technical field

The design relates to automotive hub system, especially the compressing automotive hub of steel plate.

Background technology

In at present in auto trade, performance-oriented automobile uses cast aluminium alloy wheel hub substantially because its steel wheel hub weight lays particular stress on, steel wheel hub only uses because of the dullness of the inferior position in its weight and outward appearance on some low side cars, speed-raising performance and the oil consumption height of the weight of wheel hub to automobile plays vital effect, along with large-scale iron and steel enterprise is to the opening successfully of high performance steel, make its steel wheel hub in weight, approach the level of aluminium alloy wheel hub.Because the maximum weighted position of wheel hub is in the installation position of wheel hub, the discoid solid construction in conventional steel wheel hub centre is subject to the impact of wheel hub rated load, its weight loss effect is restricted, although there was in recent years patent to have made some improvements, but centre does not change, weight loss effect is limited.

See classification number: B60B3/04 (2006.01) I

B60B1／10(2006.01)I

Application number: 200980162924.9

Application number: 200880112128.X

Though have in addition some mechanisms and individual to do some designs for hollowization of casting spoke, owing to having used the poor welding process of conformability in boss bolt bearing, cause the quality of production conformability of wheel hub to be under suspicion.

See classification number: B60B3/04B60B3/10B60B1/12

Application number: 97195856.4

Summary of the invention

Thin-walled property, hollowization and the lightweight of steel wheel hub are realized.

Accompanying drawing has represented the embodiment of this case, describes in detail below as an example of five hole wheel hubs example.

Brief description of the drawings

Fig. 1: spoke perspective illustration

Fig. 1-1: the section drawing of spoke spoke

Fig. 2: the perspective illustration of moment fastener

Fig. 3: the chimeric block diagram of spoke and moment fastener

Fig. 4: the welded section figure of spoke and wheel rim

Fig. 5: wheel hub block diagram

Code annotation:

WB: the outer wall of spoke spoke

NB: the inwall of spoke spoke

LB: the wall of spoke spoke

HM: cambered surface

DM: boss bolt stationary plane

K: boss bolt is fixed trepanning

FWB1: antifouling wall

FWB2: antifouling wall

SK: lockhole

ZDK: wheel hub center positioning hole

LGM: wheel hub is fixed inwall

F1: wind hole

F2: wind hole

Dj: chamfering

Detailed description of the invention

This case wheel hub is made up of wheel rim 1, spoke 2, moment fastener 3.

Wheel rim 1 is shaped and has adopted known traditional mode of production mode.

Be subject to the impact of vehicle braking force and wheel hub fixed position bias, wheel hub spoke bear arrive to axially, radially with circumferential load complicated and changeable, in order to improve the load resistant power of thin plate material spoke, alleviate wheel weight, spoke spoke adopts at the wall approximately axially with necessary width, at the width that approximately circumferentially formation is necessary of wall and inwall, the outer wall construction of opposite direction.

To this, the discoid overall sheet material of spoke 2 use is suppressed 5 towards the radiation of spoke edge and terminates in the inner concave in spoke edge according to the region of 5 of wheel hub bolt fixed orifices, it is recessed to towards axle hub attachment flange direction, form 5 openings to the arc surface at spoke edge and there is the fixing trepanning K of bolt the wheel hub stationary plane parallel with axle hub attachment flange, its arc diameter and wheel hub stationary plane diameter are greater than the radius of wheel hub bolt of rear end plate wrench socket concentric with trepanning, form at the same time 5 walls 1, wall 2, wall 3, seen Fig. 1.

The inwall wind hole F2 that retains the die-cut sealing of width of wheel hub stationary plane and concave bottom wall LB1, LB2, LB3 periphery necessity, has now formed inwall NB1, NB2, NB3.

In same mould, formed 5 outer wall WB1, WB2, WB3 simultaneously and be outer wall wind hole F1 and the car mark lid hole BK of open shape at spoke edge, and car mark lid hole BK has necessary circumference flanging towards axle hub attachment flange direction.

All spoke outer walls in this formation connect each other except car mark lid hole in spoke centre portion, can resist and carry.

Spoke inwall in this formation is interrupted at different bolt fixed orifice K places, can not resist and carry, and now spoke spoke is not axially almost having resistance to bending.

For keeping all spoke inwalls to be mutually connected and to become the anti-structure of carrying at central part, compacting moment fastener 3 is shown in Fig. 2.

Moment fastener 3 its formations have: wheel hub center fixed orifice ZDK, wheel hub is fixed inwall LGM, 5 moment padlock hole SK and 5 antifouling wall FWB1, FWB2, and ZDM garden week flanging and the direction of stretching out of SK and FWB be axle hub flange dorsad.

So-called moment fastener refers to: can connect the fastener of each boss bolt fixed orifice K, and the padlock hole SK that is socketed each hole K is present on an element.

The position dimension that 5 wheel hubs of 5 padlock hole SK of moment fastener and spoke are installed fixed orifice K is consistent, and K can embed in SK, sees Fig. 3.

Moment fastener embeds in spoke, and antifouling wall FWB1 is deeply to spoke inwall place, and antifouling wall FW2, deeply to spoke outer wall place, is shown in Fig. 3, and so far spoke spoke has the outer wall connecting each other at central part; Spoke spoke has the inwall connecting each other in spoke centre portion, the bending strength of spoke and rigidity reach significantly and promotes, and forms the spoke of the central hollow except BK and ZDK.

The wherein cross-sectional plane of spoke spoke be not limited to graphic shape, is shown in Fig. 1-1 details A, B, but must has wall, inwall, outer wall three elements, and outer wall is circumferentially contrary with inwall at wall.

The profile of same moment fastener is also not limited to graphic shape, sees Fig. 3, but must possess 5 moment padlock hole SK being present in one and center positioning hole ZDK and antifouling wall FWB1, FWB2 three elements.

Inwall wind hole can make wheel hub convert different outward appearance styles from the profile variation in outer wall wind hole in addition.Change even the spoke number of spoke.

Spoke edge embeds in the back side of tire mouth attachment face of wheel rim, and 5 NB3 weld and see Fig. 4 details B with the back side at rim gutter bottom chamfer place, and wheel hub totally completes.

This case has adopted the thermoforming high tensile steel plate of annealed state to be shaped at normal temperatures, quenches, and can obtain the high-strength wheel of hardness more than 1400MPa therefore wheel hub enters shape control hardening furnace after totally completing.

This case is equally applicable to 3 holes, 4 holes, 6 hole wheel hubs.

This case is not only applicable to steel plate, is equally applicable to aluminium alloy plate, stainless steel sheet and other sheet metal material.

Claims

1. the three-member type automotive hub of a metal sheet forming: formed by wheel rim 1, spoke 2, moment fastener 3, wherein: the fixing trepanning of boss bolt of spoke and the moment retaining ring hole of moment fastener embed, in the middle of forming, become the spoke of hollow structure, wherein: the back side of the tire mouth attachment face of spoke edge embedding wheel rim is also integrally welded with the back side, chamfering place at the bottom of rim gutter.

2. the spoke described in claims 1 is formed by overall plate stamping boss bolt fixed part, spoke spoke portion and spoke edge portion form.

3. described in claims 2, its feature of boss bolt fixed part has the car mark lid hole of sheet stamping forming; The about axial circular cambered surface equating with the fixing hole count of boss bolt that extend to axle hub attachment flange direction in periphery boss bolt fixed orifice region, car mark lid hole, and the opening direction of arc surface is towards spoke edge.

4. described in claims 2, its feature of boss bolt fixed part also has: formed taking the cambered surface center of circle as the center of circle and the boss bolt stationary plane parallel with axle hub attachment flange and fixing trepanning by the each arc surface described in claims 3 at extension terminal, the diameter of its arc surface and boss bolt stationary plane is greater than the external diameter of bolt of rear end plate wrench socket.

5. its feature of spoke spoke portion described in claims 2 has: the outer wall that the face that is spoke wall, the each boss bolt stationary plane inwall that is spoke, place, car mark lid hole by the each arc surface described in claims 3,4 is spoke and keep necessary width, extends, forms two spokes with wall, outer wall and inwall from the two ends of stretching cambered surface opening to spoke edge.

6. its feature of spoke edge described in claims 2 has: two spokes that extended to spoke edge by the each cambered surface port described in claims 5 converge to the other side's direction the outer armstand, inwall and the outer wall that form at spoke edge, formed the inwall wind hole with sealing, the outer wall that the outer wall of spoke and adjacent cambered surface port extend spoke has formed the outer wall air port that is open shape at outer edge simultaneously.

7. the spoke outer wall described in claims 5 connects each other outside car mark lid hole, spoke centre place, and inwall is to be mutually interrupted at the inwall at boss bolt fixed orifice place and adjacent hubs bolt fixed orifice place.

8. its feature of moment fastener described in claims 1 has: the fixing inwall of wheel hub center fixed orifice, wheel hub and have the moment retaining ring hole on the fixing inwall of wheel hub, the flanging direction in its wheel hub center fixed orifice garden week and moment retaining ring hole to stretch out direction be that circumferential position axle hub attachment flange and moment retaining ring hole and quantity are consistent with the fixing trepanning of boss bolt described in claims 3 dorsad on the fixing inwall of wheel hub also can embed wherein.

9. its feature of moment fastener described in claims 1 also has: the antifouling wall extending dorsad to axle hub attachment flange from the fixing inwall of wheel hub.

10. the wheel hub described in claims 1, by annealed state thermoforming steel plate at normal temperature state compacted under, enters shape control hardening furnace after formation is overall and quenches.