CN210423512U

CN210423512U - Ventilation brake disc

Info

Publication number: CN210423512U
Application number: CN201921101226.5U
Authority: CN
Inventors: 娄效彬
Original assignee: Laizhou Baoyi Machinery Co Ltd
Current assignee: Laizhou Baoyi Machinery Co Ltd
Priority date: 2019-07-15
Filing date: 2019-07-15
Publication date: 2020-04-28
Anticipated expiration: 2029-07-15

Abstract

The utility model discloses a ventilation brake disc, including the brake disc disk body, the brake disc disk body includes first brake lining and second brake lining, first brake lining and second brake lining are circular and parallel of each other, wherein, the rigid coupling has beans shape strengthening rib between first brake lining and the second brake lining, form the ventiduct between the beans shape strengthening rib. The reinforcing rib of the brake disc air duct is a bean rib, and the whole brake disc air duct has the advantages of being stable in mechanical structure, greatly reduced in thermal deformation rate, improved in casting yield, better in heat dissipation and the like.

Description

Ventilation brake disc

Technical Field

The utility model relates to an automobile manufacturing technical field, concretely relates to ventilation brake disc especially relates to a ventilation flue strengthening rib is ventilation brake disc of bean muscle.

Background

The brake disc is an important component of a vehicle braking system, the use performance of the brake disc directly influences the driving safety of an automobile, the conventional ventilation brake disc is shown in figure 1 and comprises a brake disc body 00, the brake disc body 00 comprises a first brake surface and a second brake surface, the first brake surface and the second brake surface are circular and parallel to each other, a shaft hole is formed in the middle of the first brake surface and the middle of the second brake surface, a mounting hole is formed in the circumference of the shaft hole, wherein a straight reinforcing rib 01 (hereinafter referred to as a straight rib for short) is fixedly connected between the first brake surface and the second brake surface and is in a straight strip shape when a sand core box is manufactured, the straight rib is radially distributed on the circumference between the first brake surface and the second brake surface, and a ventilation channel is formed between the straight ribs. However, each air duct is provided with only one air inlet and one air outlet, when the flow direction and the flow size of the external cooling air are changed, only one part of air can enter the air duct through the air inlet to be radiated and cooled and then is discharged from the air outlet, and the other part of air can be blocked back to influence the whole ventilation and heat radiation effect; moreover, the stress concentration generated by the severe alternating load generated by the automobile brake acting on the connecting edge of two adjacent straight ribs is large, so that the mechanical strength of the brake disc is weakened, and the brake disc is easy to generate heat under high-speed braking to generate heat fading deformation, so that brake shake is caused, and the braking performance is reduced.

In addition, when the straight strip-shaped reinforcing ribs are cast, the requirements on a flow channel, the temperature of molten iron, the wall thickness of a casting and the like are high, and if the molten iron is not circulated smoothly, and the casting is too little or too much, the casting failure of the reinforcing ribs can be caused, and the yield is influenced.

SUMMERY OF THE UTILITY MODEL

To the technical problem, an object of the utility model is to provide a ventilation brake disc, the strengthening rib of this brake disc ventiduct is the bean muscle, wholly has advantages such as mechanical structure is stable, the thermal deformation rate reduces by a wide margin, the casting finished product rate improves, the thermal diffusivity is better.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a ventilation brake disc, includes the brake disc disk body, the brake disc disk body includes first brake face and second brake face, first brake face and second brake face are circular and parallel to each other, wherein, the rigid coupling has beans shape strengthening rib between first brake face and the second brake face, form the ventiduct between the beans shape strengthening rib.

Preferably, the bean-shaped reinforcing ribs are round or semicircular when the sand core box is manufactured.

Preferably, the bean-shaped reinforcing ribs are radially distributed on the circumference between the first braking surface and the second braking surface according to groups.

Preferably, the distance between two adjacent groups of bean-shaped reinforcing ribs is the same, and the distance between two adjacent bean-shaped reinforcing ribs in each group of bean-shaped reinforcing ribs is the same.

Preferably, each set of bean-shaped reinforcing bars comprises 4 radially staggered bars.

More preferably, the 4 bean-shaped reinforcing bars are the same or different in size and are all the same in thickness/height.

Preferably, the bean-shaped reinforcing ribs are 30-40 groups.

More preferably, the bean-shaped reinforcing ribs are 36 groups.

Preferably, the disc body of the brake disc is made of gray cast iron.

Preferably, the middle parts of the first braking surface and the second braking surface are provided with shaft holes, and the circumference of each shaft hole is provided with a mounting hole.

Compared with the prior art, the utility model, have following advantage:

the utility model discloses the ventiduct strengthening rib is the bean muscle, and the disk body adopts grey cast iron casting processing, compares with current straight muscle, and overall mechanical structure is more stable, and the thermal deformation rate reduces by a wide margin, and psammitolite intensity increases during the system core, and the casting finished product rate improves, and the thermal diffusivity is better.

Drawings

Figure 1 is a cross-sectional view of a ventilated brake disc of the prior art, in which: 00-brake disc body, 01-straight reinforcing rib.

FIG. 2 is a vertical sectional view of a ventilated brake disc of the present invention;

fig. 3 is a cross-sectional view of a ventilated brake disc of the present invention;

in the figure: 1-brake disc body, 11-first brake surface, 12-second brake surface, 13-bean-shaped reinforcing rib, 131-bean rib first strip, 132-bean rib second strip, 133-bean rib third strip, 134-bean rib fourth strip, 14-ventilation channel, 15-shaft hole, 151-mounting hole pitch circle, and 152-mounting hole.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further explained below with reference to the accompanying drawings.

Referring to fig. 2 and 3, the utility model provides a ventilation brake disc, including brake disc disk body 1, brake disc disk body 1 includes first brake face 11 and second brake face 12, first brake face and second brake face are circular and parallel to each other, shaft hole 15 has been seted up at the middle part of first brake face 11 and second brake face 12, mounting hole 152 has been opened on the circumference (mounting hole reference circle 151) of shaft hole 15, wherein, rigid coupling has bean-shaped strengthening rib (hereinafter simply referred to as bean muscle, this strengthening rib is circular or semicircular when making the psammitolite core box) 13 between first brake face 11 and the second brake face 12, the bean muscle is radially distributed on the circumference between first brake face 11 and the second brake face 12 according to the group, the interval of adjacent two sets of bean-shaped strengthening ribs is the same, the group number of setting can suitably adjust according to the diameter of brake disc, can set up 30-40 groups usually, in this embodiment, the number of the bean ribs is preferably 36, only one group is shown in the figure as an example, each group of the bean ribs includes 4 bean ribs that are arranged in a radially staggered manner, that is, the first bean rib 131, the second bean rib 132, the third bean rib 133 and the fourth bean rib 134, and the distance between two adjacent bean ribs is also the same, and the 4 bean ribs may have the same or different sizes, for example, the diameter of the cross section of the first bean rib 131 is 12mm, the diameters of the cross sections of the second bean rib 132 and the third bean rib 133 are both 15mm, the fourth bean rib 134 is non-circular, the length of the cross section in the radial direction is longer and 24mm, the thickness/height of the 4 bean ribs between two braking surfaces is the same, and is substantially the same as the thickness of the existing straight ribs, the ventilation duct 14 is formed between the bean ribs, and the size and arrangement of the bean ribs may also be adjusted appropriately according to the diameter of the braking disc.

In the application, when the ventilation channel reinforcing rib of the brake disc body is used for manufacturing the sand core box, the reinforcing rib can be milled into a bean rib by a numerical control machining center, the brake disc body is made of gray cast iron, a blank can be manufactured by pig iron smelting and casting at high temperature (1600 ℃), and then the body is manufactured by numerical control machining.

The utility model discloses the ventiduct strengthening rib is the beans type, can adopt the form of "point" to cast when casting, and psammitolite intensity increases, and the casting finished product rate improves, and mechanical structure is stable, and the thermal deformation rate reduces by a wide margin, and the ventiduct thermal diffusivity that staggered distribution arranged's beans muscle formed is better, uses safe and reliable.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a ventilation brake disc, includes the brake disc disk body, the brake disc disk body includes first brake lining and second brake lining, first brake lining and second brake lining are circular and parallel mutually, its characterized in that, the rigid coupling has beans shape strengthening rib between first brake lining and the second brake lining, form the ventiduct between the beans shape strengthening rib, beans shape strengthening rib is radial distribution according to organizing in on the circumference between first brake lining and the second brake lining, the interval of adjacent two sets of beans shape strengthening ribs is the same, and the interval of adjacent two beans shape strengthening ribs is the same in every group beans shape strengthening rib.

2. The ventilated brake disc of claim 1, wherein the bean-shaped reinforcing ribs are circular or semicircular when the sand core box is manufactured.

3. A ventilated brake disc according to claim 1, wherein each set of bean-shaped reinforcing bars comprises 4 radially staggered bean-shaped reinforcing bars.

4. A ventilated brake disc according to claim 3, wherein the cross-sections of the 4 bean-shaped reinforcing bars are of the same or different sizes and are of the same thickness/height.

5. A ventilated brake disc according to claim 1, wherein said bean-shaped reinforcing bars are in 30-40 groups.

6. A ventilated brake disc according to claim 5, wherein said bean-shaped reinforcing bars are in total 36 sets.

7. The ventilated brake disc of claim 1, wherein the disc body is gray cast iron.

8. The ventilated brake disc of claim 1, wherein the first braking surface and the second braking surface are provided with shaft holes at the middle parts, and the circumference of the shaft holes is provided with mounting holes.