CN113931953A - Disc type brake disc - Google Patents
Disc type brake disc Download PDFInfo
- Publication number
- CN113931953A CN113931953A CN202111308885.8A CN202111308885A CN113931953A CN 113931953 A CN113931953 A CN 113931953A CN 202111308885 A CN202111308885 A CN 202111308885A CN 113931953 A CN113931953 A CN 113931953A
- Authority
- CN
- China
- Prior art keywords
- disc
- brake disc
- brake
- mating
- hub bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000013011 mating Effects 0.000 claims description 42
- 239000012720 thermal barrier coating Substances 0.000 claims description 4
- 241000561734 Celosia cristata Species 0.000 claims description 3
- 210000001520 comb Anatomy 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 description 15
- 238000009423 ventilation Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 239000004519 grease Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 206010016256 fatigue Diseases 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/12—Discs; Drums for disc brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/12—Discs; Drums for disc brakes
- F16D65/123—Discs; Drums for disc brakes comprising an annular disc secured to a hub member; Discs characterised by means for mounting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/12—Discs; Drums for disc brakes
- F16D65/128—Discs; Drums for disc brakes characterised by means for cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/78—Features relating to cooling
- F16D65/84—Features relating to cooling for disc brakes
- F16D65/847—Features relating to cooling for disc brakes with open cooling system, e.g. cooled by air
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a disc type brake disc, which comprises a brake disc body and a matching disc, wherein a matching disc opening is arranged in the central area of the brake disc body, the inner edge of the matching disc opening is in a sawtooth shape, a hub bearing bolt through hole and a brake disc fixing hole are formed in the matching disc, the hub bearing bolt through hole is matched with a hub bearing bolt, the brake disc fixing hole is used for installing the disc type brake disc, and sawteeth matched with the inner edge of the matching disc opening are arranged in the circumferential direction of the matching disc. The disc brake disc comprises a brake disc body matched with the brake caliper and a matching disc matched with the hub bearing, and the brake disc is arranged in a split mode, so that heat transmitted to the hub bearing by the brake disc can be effectively controlled, and the service life of parts of the chassis is prolonged. And the split disc brake disc can only be replaced by the brake disc body or the matching disc during maintenance, so that the maintenance cost is reduced.
Description
Technical Field
The invention relates to the field of automobile brake systems, in particular to a disc brake disc.
Background
The brake disc, i.e. the brake disc, is a metal disc, usually made of cast iron, fixed to the wheel and rotating with the wheel. When a vehicle steps on a brake in the running process, the brake calipers clamp the brake disc to generate brake torque, so that the effect of speed reduction or parking is achieved.
The process of automobile braking is actually the process of converting kinetic energy and potential energy of automobile motion into heat energy, wherein most of the generated heat is absorbed by a brake disc. A portion of the heat absorbed by the brake disc is transferred to the atmosphere by thermal radiation, and another portion is transferred to other parts of the chassis, resulting in an increase in the temperature of other parts of the chassis (e.g., fender, rim, hub bearing, knuckle, etc.). The energy transferred by the brake disc to other parts of the chassis will raise the temperature of the parts, which will have some effect on the performance of the parts. For example, the temperature rise of the hub bearing causes the bearing grease to be thinned or melted, the lubrication effect is reduced, the early fatigue damage and abnormal sound of the bearing are caused, and meanwhile, the temperature rise of the bearing accelerates the aging of the sealing rubber of the bearing, so that the sealing effect is influenced.
The brake disc temperature is too high, not only can reduce the life and the braking effect of brake disc, leads to the brake disc warpage, produces the brake friction noise, still leads to the life of other spare parts of chassis to descend easily.
Therefore, how to improve the heat dissipation capability of the brake disc and reduce the heat transferred from the brake disc to parts such as the hub bearing and the like becomes a technical problem to be solved urgently in the field.
Disclosure of Invention
The invention aims to provide a novel technical scheme of a disc brake disc, which can effectively improve the heat dissipation capacity of the brake disc and reduce the heat transferred from the brake disc to parts such as a hub bearing and the like.
According to a first aspect of the invention, a disc brake disc is provided.
This disc brake disc includes brake disc body and cooperation dish, the central zone of brake disc body is provided with cooperation dish trompil, the interior edge of cooperation dish trompil is the cockscomb structure, be equipped with wheel hub bearing bolt through-hole and brake disc fixed orifices on the cooperation dish, wheel hub bearing bolt through-hole is used for cooperateing with wheel hub bearing bolt, the brake disc fixed orifices is used for the installation disc brake disc, the circumference of cooperation dish be equipped with the sawtooth of the interior edge looks adaptation of cooperation dish trompil.
Optionally, the brake disc body is provided with a heat dissipation groove and a ventilation hole.
Optionally, the heat dissipation groove and the ventilation hole are arranged at intervals.
Optionally, the heat dissipation groove and the ventilation hole are arranged along the opening of the matching disc in a surrounding manner.
Optionally, a boss is arranged in the central region of the brake disc body, and the matching disc opening is located on the end face of the boss.
Optionally, the projected area of the mating disc opening is 30-50% of the projected area of the brake disc body.
Optionally, a thermal insulation coating is provided on the surface of the opening of the mating plate.
Optionally, the brake disc body is a cast part, and the mating disc is a forged part.
Optionally, the hub bearing bolt through holes are evenly distributed along the edge of the mating plate.
Optionally, the brake disc body and the mating disc are in clearance fit.
The disc brake disc comprises a brake disc body matched with the brake caliper and a matching disc matched with the hub bearing, and the brake disc is arranged in a split mode, so that heat transmitted to the hub bearing by the brake disc can be effectively controlled, and the service life of parts of the chassis is prolonged. And the split disc brake disc can only be replaced by the brake disc body or the matching disc during maintenance, so that the maintenance cost is reduced.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural view of an embodiment of a disc brake rotor according to the present invention.
Fig. 2 is a schematic structural view of an embodiment of a brake disc body of the disc brake disc of the present invention.
Fig. 3 is a schematic structural view of an embodiment of a mating disc of the disc brake rotor of the present invention.
Fig. 4 is a reference diagram of a disc brake rotor embodiment of the present invention in use.
The figures are labeled as follows:
the brake disc comprises a brake disc body-1, a matching disc opening-11, a heat dissipation groove-12, a ventilation hole-13, a boss-14, a matching disc-2, a hub bearing bolt through hole-21, a brake disc fixing hole-22, a sawtooth-23, a brake caliper-01 and a hub bearing-02.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
As shown in fig. 1 to 4, the disc brake disc of the present invention includes a brake disc body 1 and a mating disc 2. The central region of the brake disc body 1 is provided with a matching disc opening 11, and the inner edge of the matching disc opening 11 is in a sawtooth shape. In order to ensure operational stability of the disc brake disc, a line connecting the geometric center of the mating disc opening 11 and the center of gravity of the brake disc body 1 may be perpendicular to the mating disc 2.
The matching disc 2 is provided with a hub bearing bolt through hole 21 and a brake disc fixing hole 22. The hub bearing bolt through holes 21 are used for being matched with the hub bearing bolts, and the brake disc fixing holes 22 are used for installing disc brake discs. The circumference of the mating disc 2 is provided with serrations 23 adapted to the inner edge of the mating disc opening 11. The relative position between the mating disc 2 and the brake disc body 1 can be restricted by the mating between the serrations 23 on the mating disc 2 and the inner edge of the mating disc opening 11 of the brake disc body 1.
In the braking process of the disc brake disc, the heat of the brake disc body 1 can be transferred only through the contact between the sawteeth 23 and the matching disc opening 11, so that the heat transferred to the hub bearing by the brake disc is greatly reduced, the temperature of the hub bearing is effectively controlled, the phenomenon that grease of the hub bearing is heated to be thin or melted is avoided, the service life of the hub bearing is prolonged, and the running smoothness, NVH (noise vibration harshness) and other performances of the whole vehicle are improved.
The disc brake disc comprises a brake disc body 1 matched with the brake caliper 01 and a matching disc 2 matched with the hub bearing 02, and the brake disc is arranged in a split mode, so that heat transmitted to the hub bearing 02 by the brake disc can be effectively controlled, and the service life of chassis parts is prolonged. And, the disc brake disc body 1 or the cooperation dish 2 can only be changed when the disc brake disc of split type setting is maintained, has reduced cost of maintenance.
In one embodiment of the disc brake rotor of the present invention, the brake rotor body 1 is provided with heat dissipation grooves 12 and ventilation holes 13. The provision of the heat dissipation grooves 12 is advantageous in improving the heat dissipation performance of the brake disc and can improve the drainage performance of the brake disc. Vent hole 13 runs through brake disc body 1, can effectively increase brake disc body 1's heat dispersion, simultaneously through reasonable distribution vent hole 13, can make the brake disc have better dynamic balance performance.
Further, the heat dissipation groove 12 and the ventilation hole 13 are spaced apart. The arrangement is favorable for improving the dynamic balance performance of the brake disc while ensuring the drainage performance of the brake disc.
Further, the heat dissipation groove 12 and the ventilation hole 13 are circumferentially provided along the mating tray opening 11. The heat dissipation grooves 12 may be curved grooves, and the ventilation holes 13 are curved by connecting lines between the centers of several bodies of each ventilation hole 13, so as to more effectively improve the heat dissipation performance of the brake disc. In specific implementation, 3 to 4 ventilation holes 13 can be set as a group, and a group of ventilation holes 13 is arranged between every two heat dissipation grooves 12.
In one embodiment of the disc brake rotor of the present invention, the center region of the brake rotor body 1 is provided with a boss 14, and the mating rotor opening 11 is located on an end face of the boss 14. The provision of the boss 14 facilitates more rational adjustment of the position of the mating disc opening 11. The brake caliper 01 is fitted around the boss 14 of the brake disk body 1, and the boss 14 is higher than the portion where the brake disk body 1 is fitted to the brake caliper 01, thereby further reducing the heat transfer.
In one embodiment of the disc brake disc of the present invention, in order to improve the stability and heat dissipation performance of the brake disc while ensuring the braking effect, the projected area of the mating disc opening 11 is 30 to 50% of the projected area of the brake disc body 1.
In one embodiment of the disc brake disc of the present invention, the surface of the mating disc opening 11 is provided with a thermal barrier coating. The provision of the thermal barrier coating facilitates a more effective reduction of the heat transfer from the brake disc body 1 to the mating disc 2.
In one embodiment of the disc brake disc of the present invention, the brake disc body 1 is a cast part and the mating disc 2 is a forged part. The brake disc body 1 and the mating disc 2 may be made of the same or different materials. By adjusting the heat transfer characteristics of the brake disk body 1 and the mating disk 2, the heat transfer from the brake disk body 1 to the mating disk 2 can be further reduced.
In one embodiment of the disc brake disc of the present invention, in order to improve the stability of the brake disc in engagement with the hub bearing 02, the hub bearing bolt through holes 21 are evenly distributed along the edge of the engagement disc 2.
In one embodiment of the disc brake disc of the present invention, the brake disc body 1 and the mating disc 2 are clearance fitted. The gap between the brake disc body 1 and the mating disc 2 may serve as a thermal insulation, thereby reducing the transfer of heat.
In order to more clearly illustrate the disc brake disc of the present invention, the following description will be given taking as an example the embodiment shown in fig. 1:
the disc brake disc comprises a brake disc body 1 and a mating disc 2.
The central region of brake disc body 1 is provided with boss 14, is equipped with cooperation dish trompil 11 on the terminal surface of boss 14, and the interior edge of cooperation dish trompil 11 is the cockscomb structure. The surface of the mating disc opening 11 is provided with a thermal barrier coating. The projected area of the mating disc opening 11 is 35% of the projected area of the brake disc body 1. A heat sink 12 and a vent hole 13 are provided around the mating disc opening 11, the heat sink 12 and the vent hole 13 being spaced apart.
The matching disc 2 is provided with a hub bearing bolt through hole 21 and a brake disc fixing hole 22. The hub bearing bolt through holes 21 are used for being matched with the hub bearing bolts, and the brake disc fixing holes 22 are used for installing disc brake discs. The hub bearing bolt through holes 21 are evenly distributed along the edge of the mating disc 2. The circumference of the mating disc 2 is provided with serrations 23 adapted to the inner edge of the mating disc opening 11.
The brake disc body 1 and the mating disc 2 are clearance fitted.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (10)
1. The utility model provides a disc brake disc, its characterized in that, includes brake disc body and cooperation dish, the central zone of brake disc body is provided with cooperation dish trompil, the interior edge of cooperation dish trompil is the cockscomb structure, be equipped with wheel hub bearing bolt through-hole and brake disc fixed orifices on the cooperation dish, wheel hub bearing bolt through-hole is used for cooperateing with wheel hub bearing bolt, the brake disc fixed orifices is used for the installation disc brake disc, the circumference of cooperation dish be equipped with the sawtooth of the interior edge looks adaptation of cooperation dish trompil.
2. The disc brake rotor of claim 1, wherein the rotor body defines cooling channels and vents.
3. The disc brake rotor of claim 2, wherein the heat sink and the vent are spaced apart.
4. The disc brake disc of claim 2, wherein the heat sink and the vent are each circumferentially disposed along the mating disc opening.
5. The disc brake disc of claim 1, wherein the central region of the brake disc body is provided with a boss, and the mating disc opening is located on an end face of the boss.
6. The disc brake disc of claim 1, wherein the projected area of the mating disc opening is 30-50% of the projected area of the brake disc body.
7. The disc brake disc of claim 1, wherein the mating disc openings have a thermal barrier coating on a surface thereof.
8. The disc brake rotor of claim 1, wherein the brake rotor body is cast and the mating disc is forged.
9. The disc brake disc of claim 1, wherein the hub bearing bolt through holes are evenly distributed along the edge of the mating disc.
10. Disc brake disc according to any one of claims 1 to 9, wherein the brake disc body and the mating disc are clearance fitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111308885.8A CN113931953A (en) | 2021-11-05 | 2021-11-05 | Disc type brake disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111308885.8A CN113931953A (en) | 2021-11-05 | 2021-11-05 | Disc type brake disc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113931953A true CN113931953A (en) | 2022-01-14 |
Family
ID=79285731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111308885.8A Pending CN113931953A (en) | 2021-11-05 | 2021-11-05 | Disc type brake disc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113931953A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1132375A (en) * | 1965-05-28 | 1968-10-30 | Daimler Benz Ag | Improvements relating to disc brakes |
| DE4419754A1 (en) * | 1994-06-06 | 1995-12-07 | Teves Gmbh Alfred | Brake disc with friction ring and sheet metal holding dish |
| DE4420758A1 (en) * | 1994-06-15 | 1995-12-21 | Teves Gmbh Alfred | Brake disc with friction ring and sheet metal holder |
| DE10125111A1 (en) * | 2001-05-23 | 2002-12-12 | Daimler Chrysler Ag | Two-part brake disc with radial tooth profile for motor vehicles has holder part with shoulder to secure friction ring, and securing ring fitted into peripheral groove |
| CN101101027A (en) * | 2006-07-05 | 2008-01-09 | 哈尔德克斯制动产品股份公司 | Disc brake and spacer element |
| CN102927169A (en) * | 2011-08-10 | 2013-02-13 | 现代自动车株式会社 | Brake disc using two different materials and method for producing the same |
| CN207393811U (en) * | 2017-10-23 | 2018-05-22 | 苏州益茂电动客车有限公司 | A kind of heat-dissipation brake disc being easily installed |
-
2021
- 2021-11-05 CN CN202111308885.8A patent/CN113931953A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1132375A (en) * | 1965-05-28 | 1968-10-30 | Daimler Benz Ag | Improvements relating to disc brakes |
| DE4419754A1 (en) * | 1994-06-06 | 1995-12-07 | Teves Gmbh Alfred | Brake disc with friction ring and sheet metal holding dish |
| DE4420758A1 (en) * | 1994-06-15 | 1995-12-21 | Teves Gmbh Alfred | Brake disc with friction ring and sheet metal holder |
| DE10125111A1 (en) * | 2001-05-23 | 2002-12-12 | Daimler Chrysler Ag | Two-part brake disc with radial tooth profile for motor vehicles has holder part with shoulder to secure friction ring, and securing ring fitted into peripheral groove |
| CN101101027A (en) * | 2006-07-05 | 2008-01-09 | 哈尔德克斯制动产品股份公司 | Disc brake and spacer element |
| CN102927169A (en) * | 2011-08-10 | 2013-02-13 | 现代自动车株式会社 | Brake disc using two different materials and method for producing the same |
| CN207393811U (en) * | 2017-10-23 | 2018-05-22 | 苏州益茂电动客车有限公司 | A kind of heat-dissipation brake disc being easily installed |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220114 |