CN210978299U

CN210978299U - Brake disc with upwarp-proof edge

Info

Publication number: CN210978299U
Application number: CN201921766281.6U
Authority: CN
Inventors: 曾德文; 曾奇夫
Original assignee: Nanjing Dongdian Testing Technology Co ltd
Current assignee: Nanjing Dongdian Testing Technology Co ltd
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2020-07-10
Anticipated expiration: 2029-10-21

Abstract

The utility model discloses a brake disc with anti-warping edges, which comprises a brake disc body and a reinforcing ring; the reinforcing rings comprise a first reinforcing ring and a second reinforcing ring which are arranged on two sides of the brake disc body; the first reinforcing ring and the second reinforcing ring are coaxially arranged with the brake disc body, the first reinforcing ring and the second reinforcing ring are respectively provided with a first binding surface and a second binding surface which are basically vertical to the axis, the first binding surface and the second binding surface are respectively provided with a plurality of vortex temperature equalizing grooves, and the vortex temperature equalizing grooves are distributed along the circumferential direction of the first reinforcing ring and the second reinforcing ring; the vortex samming groove extends along an oblique line, and the oblique line is 0 ~ 90 contained angle with the radial at vortex samming groove place to make the brake disc body form the air swirl around when rotatory, the vortex samming groove is seted up on the surface of first beaded finish and second beaded finish opposite face.

Description

Brake disc with upwarp-proof edge

Technical Field

The utility model relates to a brake disc field for the train, concretely relates to can balance brake disc three-dimensional temperature, prevent the proof warp limit brake disc of the inhomogeneous thermoelastic deformation of brake disc.

Background

The automobile brake is to utilize the mutual friction between the brake caliper assembly connected to the automobile body or frame and the rotating element brake disc connected to the wheel or transmission shaft to stop the rotation of the wheel and to reach the aim of lowering the speed and stopping the automobile. In the braking process, about 90% of kinetic energy of the automobile is absorbed by the brake disc and converted into heat energy, and due to frictional heat generation, the temperature of the binding surface of the brake disc is increased, the thermal stress of the internal structure is changed, and thermal deformation is generated.

As shown in fig. 1, the conventional brake disc includes a disc hub, a first disc 101 and a second disc 102, both of which are integrally formed by a flange, a friction ring and a heat dissipation rib 11; the temperature rise of the brake disc binding surface is influenced by a plurality of factors in the actual braking process, and the boundary of the model is as follows: the locking and the slippage of the wheels are eliminated, the pure rolling state is set, and the output pressure of the brake is constant and uniformly distributed; the brake system is made of isotropic elastic materials, the abrasion is not counted, and the influence of heat radiation is not considered; and various displacements of the brake disc are restrained, and the axial displacement of the wheel shaft of the brake caliper assembly is fixedly restrained. According to the data simulation, the brake disc circumferential stress is the largest in the three-dimensional (axial, radial and circumferential) stress of the brake disc, and the main reasons of the crack and the edge warping of the leather of the brake disc body are actually caused. When the point stress values of the temperature field and the stress field node exceed the material yield limit, uneven thermoelastic deformation occurs, and the inward warping is caused.

The hot warping easily causes hot spots on the binding surface of the brake disc, and causes the end face of the brake disc to jump, thereby causing the fluctuation of braking torque and braking pressure and the occurrence of braking thermal vibration.

If the application number is: CN200980101484.6, patent name: in the patent application of "brake disc equipped with ribs arranged between two friction rings", it is known that the existing brake disc structure adopts a structure mode that the thicknesses of inner and outer side walls are the same, and the middle part is used for radiating and connecting ribs for connecting a brake disc mounting surface and a working surface; the thicker the rib is, the larger the cross-sectional area of the connecting rib is, the higher the heat conduction speed from outside to inside is, the higher the heat dissipation is, and the better the thermal deformation recovery is. However, due to the weight limitation of the brake disc, the rib size cannot be excessively increased, and the manufacturing cost is also affected.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem who solves: the utility model aims at solving the not enough among the prior art, provide a can balance brake disc three-dimensional temperature, prevent the proof warp limit brake disc of the inhomogeneous thermoelastic deformation of brake disc.

The technical scheme of the utility model: the utility model relates to a brake disc with anti-warping edges, which comprises a brake disc body and a reinforcing ring; the reinforcing ring comprises a first reinforcing ring and a second reinforcing ring which are arranged on two sides of the brake disc body; the first reinforcing ring and the second reinforcing ring are coaxially arranged with the brake disc body, the first reinforcing ring and the second reinforcing ring are respectively provided with a first binding surface and a second binding surface which are basically vertical to the axis, the first binding surface and the second binding surface are respectively provided with a plurality of vortex temperature equalizing grooves, and the vortex temperature equalizing grooves are distributed along the circumferential direction of the first reinforcing ring and the second reinforcing ring;

the vortex samming groove extends along an oblique line, the oblique line with the radial contained angle that is 0 ~ 90 at vortex samming groove place, so that the brake disc body forms the air swirl around when rotatory, the vortex samming groove is seted up first beaded finish and second beaded finish opposite face on the surface, vortex samming groove on the first beaded finish and the vortex samming groove on the second beaded finish align each other respectively and form a plurality of vortex runners of arranging along brake disc body circumference after merging.

Furthermore, a plurality of first connecting portions arranged along the circumferential direction of the first reinforcing ring are arranged on the first reinforcing ring, a plurality of second connecting portions arranged along the circumferential direction of the second reinforcing ring are arranged on the second reinforcing ring, and the first connecting portions and the second connecting portions are detachably connected with each other.

Furthermore, first connecting portion and second connecting portion are provided with assorted box and pin or single knot, first beaded finish passes through box and pin or single knot detachably to be connected each other with the second beaded finish.

Furthermore, a light source with a warning function is arranged on the reinforcing ring.

Furthermore, the binding surface of the reinforcing ring is provided with a fluorescent substance or a reflective material.

The utility model has the advantages of compared with the prior art:

1. the reinforcing ring is provided with a vortex temperature equalizing groove, the vortex temperature equalizing groove extends along an oblique line, the oblique line and the radial direction of the vortex temperature equalizing groove form an included angle of 0-90 degrees, when the brake disc body rotates, an air vortex can be formed around the brake disc body, air circulation of an inner ring of the brake disc is promoted, air circulation is utilized, high temperature of the inner ring is brought out, the temperature of the inner ring is reduced, and the circumferential temperature of the brake disc body is balanced; in the driving process of the vehicle, vortex air cooling is formed to cool the brake disc, so that the brake disc is not easy to deform and the service life is prolonged; simultaneously, set up first beaded finish and the second beaded finish of brake disc both sides and form effective reinforcement to the brake disc, further prevent that the brake disc from sticking up the limit.

2. First beaded finish and second beaded finish can dismantle the connection, and it is convenient to dismantle, easily changes, and applicable in most brake discs, need not to change current brake disc body, and the income is effectual.

3. The reinforcing ring is provided with a light source with a warning effect, so that the warning effect is achieved.

Drawings

FIG. 1 is a schematic structural diagram of a conventional brake disc;

FIG. 2 is a three-dimensional schematic view of FIG. 1;

FIG. 3 is an enlarged view of the first tray of FIG. 2;

fig. 4 is a schematic view of the overall structure of the present invention;

fig. 5 is a schematic view of the overall structure of the first reinforcement ring of the present invention;

fig. 6 is a schematic view of the fastening sequence of the bolt in the present invention.

Detailed Description

In order to deepen the understanding of the present invention, we will make further details of the present invention with reference to the drawings, and this embodiment is only used to explain the present invention, and does not constitute a limitation to the protection scope of the present invention.

The utility model discloses a brake disc beaded finish, brake disc beaded finish mainly install on high-speed railway, motor car brake disc to play and consolidate the outer lane, balanced brake disc three-dimensional temperature prevents the inhomogeneous thermoelastic deformation effect of brake disc. The brake disc reinforcing ring comprises a first reinforcing ring 2 and a second reinforcing ring 3 which are coaxially arranged, the second reinforcing ring 3 is detachably connected with the first reinforcing ring 2, a plurality of first connecting portions 21 which are circumferentially arranged along the first reinforcing ring 2 are arranged on the first reinforcing ring, a plurality of second connecting portions 31 which are circumferentially arranged along the second reinforcing ring 3 are arranged on the second reinforcing ring 3, and the first connecting portions 21 and the second connecting portions 31 are detachably connected with each other. The first connecting portion 21 and the second connecting portion 31 are provided with a matched male and female buckle 5, and the first reinforcing ring 2 and the second reinforcing ring 3 are detachably connected with each other through the male and female buckle 5. The first connecting portion 21 and the second connecting portion 31 can be connected by other connecting methods, such as a single buckle. Since various connection means are well known to those skilled in the art, they are not shown in the drawings nor are they set forth in detail herein.

The first reinforcing ring 2 and the second reinforcing ring 3 are respectively provided with binding surfaces which are basically vertical to the axis, a plurality of vortex temperature equalizing grooves 4 are respectively arranged on the binding surfaces which are basically vertical to the axis of the first reinforcing ring 2 and the second reinforcing ring 3, and the first reinforcing ring 2 and the second reinforcing ring 3 are arranged along the direction of the axis and face each other.

In a preferred embodiment, a plurality of vortex temperature-equalizing grooves 4 are formed on the opposite surfaces of the first connecting portion 21 and the second connecting portion 31, and the vortex temperature-equalizing grooves 4 are arranged along the circumferential direction of the brake disc reinforcing ring. The vortex temperature equalizing grooves 4 on the first connecting portion 21 and the vortex temperature equalizing grooves 4 on the second connecting portion 31 are respectively arranged in alignment to form a plurality of penetrating heat dissipation holes arranged along the circumferential direction of the brake disc reinforcing ring. The vortex temperature equalizing groove 4 extends along an oblique line on the binding surface of the reinforcing ring, and the oblique line and the radial direction where the heat conducting groove 4 is located form an included angle of 0-90 degrees, so that the reinforcing ring forms an air vortex around during rotation. The vortex temperature equalizing groove 4 may be formed not only on the facing surfaces of the first reinforcing ring 2 and the second reinforcing ring 3, but also on other portions, for example, the contact surfaces of the facing surfaces of the first reinforcing ring 2 and the second reinforcing ring 3.

The brake disc reinforcing ring is provided with a light source for warning, or the binding surface of the brake disc reinforcing ring is provided with a fluorescent substance or a reflective material.

The utility model discloses light sources such as brake disc beaded finish facial make-up L ED lamp, perhaps binding face roast fluorescent paint, paste the fluorescent label, binding face processing such as positive pole electroplating play the safety warning effect, vortex samming groove 4 has been seted up on the brake disc beaded finish, the car is at the in-process of traveling, form the forced air cooling and make the brake disc cooling, non-deformable, increase of service life, the inner circle installs inertial power generation device additional, or solar power generation device, satisfy the self-service need, the brake disc beaded finish adopts 5 lug connection of pin and box, it is convenient to dismantle, can make into various shapes, play the decoration beautification effect.

The utility model discloses still include the installation application method of brake disc, specifically include following step:

a. preparation work:

before the brake disc is mounted, it is ensured that the surfaces that engage the brake disc body 1 are free from rust and any other dust or dirt. It is particularly ensured that no contamination remains on the contact surfaces of the fasteners used when mounting the brake disc, and that fasteners having rusted surfaces are unusable. If the parts need to be cleaned from dust or pollution, absorbent paper is dipped in a cleaning agent to clean the wheel, the matching surface of the wheel and the brake disc and the surface of a fastener of the brake disc until no pollutant is left on the surface.

Before assembly, enough assembly paste (such as molybdenum disulfide) is uniformly sprayed on the contact surface of the spoke and the brake disc and the positioning pin hole (the bolt hole is not sprayed), the coating needs to be dried in 30 minutes, and the dried thickness range is 5-10 mu m.

Injecting proper amount of lubricating oil (oiling depth is 15-20 mm) into the bolt oil immersion box, placing the thread end of the brake disc bolt downwards in the oil immersion box for immersion oil, injecting proper amount of lubricating oil (oiling depth is 2-4 mm) into the nut oil immersion box, and placing the brake disc nut and the sleeve in the oil immersion box with the contact surface facing downwards for immersion oil. After oil immersion, the brake disc bolts, nuts and sleeves need to be placed on a clean absorbent paper to control oil for at least 1 minute, so that excess oil is controlled off (no oil droplets are on the surface). The brake disc bolts, the nuts and the sleeves are assembled within 30 minutes after oil control is started, and if the time exceeds 30 minutes, the brake disc bolts, the nuts and the sleeves must be soaked in oil and controlled again.

Wheel-mounted brake discs are only mountable after the wheel is removed from the wheel-set. Firstly, a brake disc body on the outer side of a wheel is placed on a brake disc dismounting workbench, the wheel is lifted on the brake disc, a positioning pin is placed in a wheel positioning pin hole, and the wheel positioning pin is adjusted to be in a radial position. The flat ends of the locating pins must be exposed from the two sides of the wheel spoke, and the flat ends of the locating pins are engaged with the key grooves on the heat dissipation ribs of the disc body of the brake disc.

b. Assembling operation:

the brake disc bodies on the inner sides of the wheels are hung on the wheels with positioning pins, and the unbalanced positions of the two brake disc bodies are required to be staggered by 180 degrees as far as possible during installation. And slightly shaking the disc body of the brake disc to enable the flat other end of the positioning pin to be meshed with the key groove on the heat dissipation rib of the disc body. After the disc body of the brake disc is fixed, bolts sleeved with sleeves are sequentially placed in each fastener mounting hole, 12 bolt-nut assemblies are manually assembled, the wheel and the brake disc are hoisted to a special bolt tightening tool, and the bolts are tightened by using a calibrated torque wrench.

As shown in fig. 2, 12 bolts were first cross-pretensioned with a torque of 80Nm in the order of 1, 5, 9, 2, 6, 10, 3, 7, 11, 4, 8, 12;

then cross-pretensioning was carried out using a torque of 140Nm in the order of 1, 5, 9, 2, 6, 10, 3, 7, 11, 4, 8, 12;

finally, the bolt fasteners are checked and tightened successively in a sequence of 1, 2, 3, 4, 5, 6 …, 12 along the brake disk with a torque of 160 Nm.

c. And (3) checking after assembly:

ensuring that the fasteners have been properly installed includes confirming the tightening sequence and the pretensioning torque. And (5) checking the flatness and the runout of two end faces of the wheel-mounted brake disc, wherein the numerical value is required to be consistent with the technical requirement in the installation drawing. After assembly inspection, a small amount of red paint must be applied to the threaded end of each bolt and the locknut as a check mark.

The utility model has the characteristics of can balance brake disc three-dimensional temperature, prevent the inhomogeneous thermoelasticity deformation of brake disc, set up vortex samming groove 4 on the beaded finish, vortex samming groove 4 extends along an oblique line, the oblique line is 0 ~ 90 contained angle with the radial of vortex samming groove 4 place, brake disc body 1 can form the air swirl around brake disc body 1 when rotatory, promotes the circulation of air of brake disc inner circle, will utilize the circulation of air, will take out the inner circle high temperature, reduce the inner circle temperature, balanced braking disc body circumference temperature; in the driving process of the vehicle, vortex air cooling is formed to cool the brake disc, so that the brake disc is not easy to deform and the service life is prolonged; meanwhile, the first reinforcing ring 2 and the second reinforcing ring 3 which are arranged on the two sides of the brake disc effectively reinforce the brake disc, so that the edge of the brake disc is further prevented from being warped; the first reinforcing ring 2 and the second reinforcing ring 3 are detachably connected, so that the brake disc is convenient to detach and easy to replace, can be applied to most brake discs, does not need to be changed on the existing brake disc body 1, and has a good income effect; the reinforcing ring is provided with a light source with a warning effect, so that the warning effect is achieved.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration only, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the claims and their equivalents.

Claims

1. The utility model provides a proof perk limit brake disc, includes brake disc body (1), its characterized in that: the device also comprises a reinforcing ring; the reinforcing ring comprises a first reinforcing ring (2) and a second reinforcing ring (3) which are arranged on two sides of the brake disc body (1); the first reinforcing ring (2), the second reinforcing ring (3) and the brake disc body (1) are coaxially arranged, the first reinforcing ring (2) and the second reinforcing ring (3) are respectively provided with a first binding surface (20) and a second binding surface (30) which are basically vertical to an axis, a plurality of vortex temperature equalizing grooves (4) are respectively formed in the first binding surface (20) and the second binding surface (30), and the vortex temperature equalizing grooves (4) are distributed along the circumferential direction of the first reinforcing ring (2) and the second reinforcing ring (3);

vortex samming groove (4) extend along an slash, the slash with the radial contained angle that is 0 ~ 90 at vortex samming groove (4) place, so that brake disc body (1) forms the air swirl around when rotatory, vortex samming groove (4) are seted up on the surface of first beaded finish (2) and second beaded finish (3) opposite face, vortex samming groove (4) on first beaded finish (2) and vortex samming groove (4) on second beaded finish (3) align respectively each other and form a plurality of vortex runners of arranging along brake disc body (1) circumference after merging.

2. The edge-lift prevention brake disc of claim 1, wherein: the first reinforcing ring (2) is provided with a plurality of first connecting portions (21) arranged along the circumferential direction of the first reinforcing ring, the second reinforcing ring (3) is provided with a plurality of second connecting portions (31) arranged along the circumferential direction of the second reinforcing ring, and the first connecting portions (21) and the second connecting portions (31) are detachably connected with each other.

3. The edge-lift prevention brake disc of claim 1, wherein: first connecting portion (21) and second connecting portion (31) are provided with assorted pin thread or single knot, first beaded finish (2) and second beaded finish (3) are through pin thread or single knot detachably connection each other.

4. The edge-lift prevention brake disc of claim 3, wherein: and a light source with a warning function is arranged on the reinforcing ring.

5. The edge-lift prevention brake disc of claim 3, wherein: the binding surface of the reinforcing ring is provided with fluorescent substances or reflective materials.