CN207246290U - Vehicle and its brake disc - Google Patents

Abstract

It the utility model is related to the technical field of vehicle brake assemblies, a kind of vehicle and its brake disc are provided, wherein, the brake disc includes this body disc and castiron drag ring made of aluminium alloy, the drag ring is annular plate, and the drag ring is engaged in the card of described body disc.Brake disc described in the utility model is made up of two kinds of materials, wherein, the part contacted with friction plate is used as by drag ring made of cast iron materials, and main skeleton is used as by this body disc made of aluminum alloy materials to support drag ring, the lightweight of brake disc is realized on the premise of ensureing with enough wear-resisting properties, unsprung mass is significantly reduced, improves the operational stability of vehicle.

Description

Vehicle and its brake disc

Technical field

The technical field of vehicle brake assemblies is the utility model is related to, more particularly to a kind of brake disc and vehicle.

Background technology

In design vehicle, to improve the operational stability of vehicle, it usually needs matter under the spring of control (i.e. reduction) vehicle Amount, so-called " unsprung mass " refer to the non-weight supported by automobile suspension system：Tire, wheel hub, brake.It is traditional by cast iron system Into brake disc in occupation of larger specific gravity in unsprung mass, therefore reduce brake disc quality and can effectively reduce unsprung mass so that Improve the operational stability of vehicle while vehicle weight is reduced.

Automobile brake disc is generally ironcasting, such as HT200, HT300 or forged steel material etc. at present, and density is about 7.3- 7.8g/cm³, density of material is relatively large, and product overall weight is big, and brake disc gross weight is about 20-40 before and after general passenger car Kilogram or so, the brake disc gross weight of the large-scale SUV vehicles in part can even reach more than 60 kilograms, and such brake disc is obvious It cannot meet the light-weighted demand of vehicle, influence the operational stability of vehicle.

Utility model content

In view of this, the utility model is directed to a kind of brake disc, to solve the problems, such as that brake disc quality is excessive.

To reach above-mentioned purpose, what the technical solution of the utility model was realized in：

A kind of brake disc of vehicle, wherein, the brake disc includes this body disc made of aluminium alloy and castiron rubs Ring is wiped, the drag ring is annular plate, and the drag ring is engaged in the card of described body disc.

Further, the brake disc includes two drag rings, and two drag rings are individually coupled to described The card of body disc both sides, and two drag rings are parallel to each other.

Further, two drag rings are symmetrical on described body disc.

Further, the thickness of the drag ring is 0.5-5mm.

Further, the roughness Rz of the outer surface of the drag ring is 0.8-3.2um.

Further, the roughness Rz of the inner surface of the drag ring is 50-500um.

Further, the inner surface of the drag ring is embedding formed with the lug boss that height is 0.5-3.0mm, the lug boss In the card for entering described body disc.

Further, the inner surface of the drag ring is embedding formed with the concave part that depth is 0.5-3.0mm, described body disc Enter in the concave part.

Further, described body disc includes center flange and sets two discs of the center flange periphery, and two A disc axially spaced-apart and the connection of the reinforcing rib by radially extending.

Relative to the prior art, the brake disc of vehicle described in the utility model has the advantage that：

Brake disc described in the utility model is made up of two kinds of materials, wherein, pass through drag ring made of cast iron materials It is used as main skeleton as the part contacted with friction plate, and by this body disc made of aluminum alloy materials to support friction Ring, realizes the lightweight of brake disc, hence it is evident that reduce unsprung mass, carry on the premise of ensureing with enough wear-resisting properties The operational stability of vehicle is risen.

The another object of the utility model is to propose a kind of vehicle, and to solve, the brake disc quality of vehicle is excessive to ask Topic.

To reach above-mentioned purpose, what the technical solution of the utility model was realized in：

A kind of vehicle, wherein, the vehicle is provided with the brake disc of the vehicle described in above scheme.

The vehicle is identical relative to advantage possessed by the prior art with the brake disc of above-mentioned vehicle, no longer superfluous herein State.

Other features and advantages of the utility model will be described in detail in subsequent specific embodiment part.

Brief description of the drawings

The attached drawing for forming the part of the utility model is used to provide a further understanding of the present invention, this practicality is new The exemplary embodiment and its explanation of type are used to explain the utility model, do not form the improper restriction to the utility model. In the accompanying drawings：

Fig. 1 is the structure diagram of the brake disc described in the utility model embodiment；

Fig. 2 is the sectional view of the brake disc described in the utility model embodiment；

Fig. 3 is the phantom of the drag ring described in the utility model embodiment, and which show the first shape Lug boss；

Fig. 4 is the phantom of the drag ring described in the utility model embodiment, and which show second of shape Lug boss；

Fig. 5 is the phantom of the drag ring described in the utility model embodiment, and which show the 3rd shape Lug boss；

Fig. 6 is the phantom of the drag ring described in the utility model embodiment, and which show concave part.

Description of reference numerals：

This body disc of 1-, 2- drag rings, 11- center flanges, 12- discs, 13- reinforcing ribs, 21- lug bosses, 22- concave parts.

Embodiment

It should be noted that in the case where there is no conflict, the spy in embodiment and embodiment in the utility model Sign can be mutually combined.

Below with reference to the accompanying drawings and embodiment is combined to describe the utility model in detail.

The utility model provides a kind of brake disc of vehicle, wherein, the brake disc includes body made of aluminium alloy Disk 1 and castiron drag ring 2, the drag ring 2 is annular plate, and the drag ring 2 is engaged in described body disc 1 Card.

The neighbouring wheel of the brake disc vehicle sets and is installed on axle, and certainly, brake disc can also be installed on On wheel, the both sides of brake disc are respectively arranged with friction plate, can be connect by friction plate with grip friction ring, friction plate with drag ring Touch and produce friction brake force, with abrupt deceleration vehicle.

Drag ring 2 is annular plate, which has two ring surfaces, and one of ring surface is (i.e. as described below Inner surface) be engaged in this body disc 1, another ring surface (outer surface i.e. as described below) is as the friction contacted with friction plate Face.Wherein, this body disc 1 is made of aluminium alloy, and aluminium alloy is relatively small compared to casting density, therefore can reduce the braking The total quality of disk, so as to reduce unsprung mass, lifts the operational stability of vehicle.The brake disc of this programme is equivalent to general The part that can be contacted with friction plate replaces with cast iron, and remainder is made of aluminium alloy, its overall volume and traditional braking Disk is basically identical.

Further, the brake disc includes two drag rings 2, and two drag rings 2 are individually coupled to described The card of 1 both sides of this body disc, and two drag rings 2 are parallel to each other.It is bonded to respectively in the card of the both sides of this body disc 1 The drag ring 2, and two drag rings 2 are parallel, ensures that 2 stress of drag ring is more balanced, avoid stress deflection and to body The local card of disk 1 caused large impact, can be more uniformly distributed pressure on this body disc 1, protecting this body disc 1 constant Shape.

Further, two drag rings 2 are symmetrical on described body disc 1.That is, two drag rings 2 are identical Structure, and this body disc 1 (part) is symmetrically clamped, in braking, friction plate is contacted with two drag rings 2 respectively, with Brake disc is clamped, since two drag rings 2 are arranged symmetrically, two drag rings 2 are essentially identical to the active force of this body disc 1 so that 1 uniform stressed of this body disc, more difficult damage.

Preferably, the thickness of the drag ring 2 is 0.5-5mm.The thickness of drag ring 2 should remain suitable scope, On the one hand to consider influence of the castiron drag ring 2 to the brake disc total quality, on the other hand to consider drag ring 2 Rigidity itself, intensity and the problems such as using amount of friction, by weighing the factor of these two aspects, this programme is by drag ring 2 Thickness limit is 0.5-5mm, in addition, the thickness of drag ring 2 can also be according to complete vehicle quality, the size of brake disc, brake force Size etc. is because usually determining.

Wherein, the roughness Rz of the outer surface of the drag ring 2 is 0.8-3.2um.The outer surface of drag ring 2 is and friction The surface of piece contact, with larger roughness, friction system when increase is contacted with friction plate, improves friction brake force for it. The roughness of the outer surface of drag ring 2 should be selected according to the required brake force of vehicle, rather than blindly pursue bigger Brake force and excessively improve roughness and friction coefficient, avoid causing since roughness is excessive drag ring 2 from occurring with friction plate Locking.

Since drag ring 2 is made with this body disc 1 of two kinds of different materials, engagement therebetween needs to do special processing, Drag ring 2 is avoided to be disengaged from each other with this body disc 1.

Wherein, it is according to the present utility model in a first aspect, the roughness Rz of the inner surface of the drag ring 2 is 50- 500um.By contrast as can be seen that the roughness of the inner surface of drag ring 2 is significantly greater than the roughness of its outer surface, drag ring The purpose that 2 inner surfaces are arranged to rough surface is, increases the contact area between drag ring 2 and this body disc 1, improves therebetween Engaging force.Wherein, when manufacturing the brake disc of this programme, drag ring 2 can be first made, drag ring 2 is then positioned over mould In tool and with molten aluminium alloy cast molding this body disc 1, realize that the engagement with drag ring 2 connects in molten aluminium alloy solidification process Connect.

In addition, second aspect according to the present utility model, the inner surface of the drag ring 2 is 0.5- formed with height The lug boss 21 of 3.0mm, the lug boss 21 are embedded in the card of described body disc 1.Lug boss 21 can have diversified forms, example Three kinds of forms as shown in Fig. 3, Fig. 4, Fig. 5.Wherein, the lug boss 21 in Fig. 3 is formed as angular shape, can be by picking angle knife " provoke " part cast iron materials etc. sharp cutter in the flat surfaces of drag ring 2 and form wedge angle；Lug boss 21 shown in Fig. 4 is formed For square boss, which can be realized by the casting mould of drag ring 2, similar, and the lug boss 21 shown in Fig. 5 is formed To be spherical, can also be realized by the casting mould of drag ring 2.As described above, molten aluminum of casting in the mould to brake disc During alloy, molten aluminium alloy is fully engaged in the inner surface of drag ring 2 and coats lug boss 21 so that molten aluminium alloy solidifies Can more closely it be engaged with the inner surface of drag ring 2 afterwards.

In addition, the third aspect according to the present utility model, the inner surface of the drag ring 2 is 0.5- formed with depth The concave part of 3.0mm, described body disc 1 are embedded in the concave part 22.Concave part 22 can pass through the casting mould of drag ring 2 Realize, in the mould to brake disc during casting molten aluminium alloy, molten aluminium alloy can be entered in concave part 22, after solidification Aluminium alloy form this body disc 1, the sub-fraction of this body disc 1 protrudes from card (lug boss 21 similar as above) and embedding Enter the engagement to drag ring 2, improved between this body disc 1 and drag ring 2, avoid the two disengaging.

Specifically, as depicted in figs. 1 and 2, described body disc 1 includes center flange 11 and sets the center flange 11 Two discs 12 of periphery, two 12 axially spaced-aparts of the disc and reinforcing rib 13 by radially extending connects.Center flange 11 are used to cover the axle for being set to vehicle, are connected between two discs 12 by reinforcing rib 13 and are formed as engraved structure so that institute Stating brake disc has the quality of smaller, reduces unsprung mass, improves the operational stability of vehicle.As shown in Fig. 2, one of disk Piece 12 is connected to the outer circumferential surface of center flange 11, and another disc 12 is connected to one of disc 12 by reinforcing rib 13, And another disc 12 keeps being spaced with center flange 11, and such structure is more convenient the manufacture of the brake disc, wherein, Into the mould of the brake disc during casting molten aluminium alloy, core is equipped with the brake disc, core can be arranged at center In flange 11 and extend between disc 12, realize the shaping of this body disc 1.

In addition, the utility model additionally provides a kind of vehicle, wherein, the vehicle is provided with the vehicle described in above scheme Brake disc.The brake disc can be installed on the axle of vehicle, and the brake disc follows wheel synchronous rotary, braking system The friction plate of system can be moved to be contacted with drag ring 2, to realize brake operating.

The foregoing is merely the better embodiment of the utility model, be not intended to limit the utility model, it is all Within the spirit and principles of the utility model, any modification, equivalent replacement, improvement and so on, it is new to should be included in this practicality Within the protection domain of type.

Claims (8)

1. a kind of brake disc of vehicle, it is characterised in that the brake disc includes this body disc (1) and cast iron system made of aluminium alloy Into drag ring (2), the drag ring (2) is annular plate, and the drag ring (2) is engaged in described body disc (1) Card, the brake disc include two drag rings (2), and two drag rings (2) are individually coupled to described body disc (1) The card of both sides, and two drag rings (2) are parallel to each other, and the roughness Rz of the inner surface of the drag ring (2) is 50- 500um。

2. the brake disc of vehicle according to claim 1, it is characterised in that two drag rings (2) are on described body disc (1) it is symmetrical.

3. the brake disc of vehicle according to claim 1, it is characterised in that the thickness of the drag ring (2) is 0.5- 5mm。

4. the brake disc of vehicle according to claim 1, it is characterised in that the outer surface of the drag ring (2) it is coarse Degree Rz is 0.8-3.2um.

5. the brake disc of vehicle according to claim 4, it is characterised in that the inner surface of the drag ring (2) formed with It is highly the lug boss (21) of 0.5-3.0mm, in the card of the embedded described body disc (1) of the lug boss (21).

6. the brake disc of vehicle according to claim 4, it is characterised in that the inner surface of the drag ring (2) formed with Depth is the concave part of 0.5-3.0mm, and described body disc (1) is embedded in the concave part (22).

7. the brake disc of vehicle according to claim 1, it is characterised in that described body disc (1) includes center flange (11) and two discs (12) of center flange (11) periphery are set, two disc (12) axially spaced-aparts simultaneously pass through Reinforcing rib (13) connection radially extended.

8. a kind of vehicle, it is characterised in that the vehicle is provided with the braking of the vehicle described in any one in claim 1-7 Disk.