CN113339427B - In-wheel motor brake disc and mounting structure thereof - Google Patents

In-wheel motor brake disc and mounting structure thereof Download PDF

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Publication number
CN113339427B
CN113339427B CN202110521634.1A CN202110521634A CN113339427B CN 113339427 B CN113339427 B CN 113339427B CN 202110521634 A CN202110521634 A CN 202110521634A CN 113339427 B CN113339427 B CN 113339427B
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CN
China
Prior art keywords
brake disc
mounting
heat insulation
wheel motor
hole
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Active
Application number
CN202110521634.1A
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Chinese (zh)
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CN113339427A (en
Inventor
张阳
邹城
刘春强
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Dongfeng Motor Group Co Ltd
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Dongfeng Motor Group Co Ltd
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Priority to CN202110521634.1A priority Critical patent/CN113339427B/en
Publication of CN113339427A publication Critical patent/CN113339427A/en
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Publication of CN113339427B publication Critical patent/CN113339427B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00Parts or details
    • F16D65/02Braking members; Mounting thereof
    • F16D65/12Discs; Drums for disc brakes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00Parts or details
    • F16D65/02Braking members; Mounting thereof
    • F16D65/12Discs; Drums for disc brakes
    • F16D65/123Discs; Drums for disc brakes comprising an annular disc secured to a hub member; Discs characterised by means for mounting
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00Thermal insulation in general
    • F16L59/02Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00Parts or details
    • F16D65/02Braking members; Mounting thereof
    • F16D2065/13Parts or details of discs or drums
    • F16D2065/1304Structure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00Parts or details
    • F16D65/02Braking members; Mounting thereof
    • F16D2065/13Parts or details of discs or drums
    • F16D2065/134Connection
    • F16D2065/1384Connection to wheel hub
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/64Electric machine technologies in electromobility

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

The invention discloses a hub motor brake disc and a mounting structure thereof, the hub motor brake disc comprises a brake disc main body, a plurality of mounting lugs are arranged on the periphery of the outer edge of the brake disc main body, mounting holes are formed in the middle parts of the mounting lugs, and heat insulation structures are arranged on the hole wall and two end faces of the mounting holes, so that the main transmission path of heat of the brake disc to other parts is effectively blocked, and the purpose of better heat insulation is achieved. This mounting structure of in-wheel motor brake disc runs through the through-hole of the heat insulating mattress of installation lug both sides in proper order through fixing bolt's pole portion, and tip and in-wheel motor body threaded connection, can effectively separate the indirect heat conduction of brake disc through fastening bolt and in-wheel motor body, reaches better thermal-insulated effect.

Description

In-wheel motor brake disc and mounting structure thereof
Technical Field
The invention relates to the field of hub motors, in particular to a brake disc of a hub motor and an installation structure thereof.
Background
The wheel hub motor drive is one of important development directions of new energy automobiles, and the principle is that the motor is arranged in an automobile wheel rim, and the motor directly drives wheels, so that a traditional transmission device is omitted. The motor can begin to demagnetize at about 200 ℃ due to the limitation of the neodymium iron boron permanent magnet technology, the running temperature of the motor is not more than 110 ℃, so that the performance of the motor is adversely affected due to overhigh working temperature, and water cooling is generally needed in the running process of the hub motor.
Parts such as brake disc, brake caliper are installed usually to one side of in-wheel motor and are brakied, and in the braking process, brake disc surface temperature will be high and reach more than 500 ℃, and these heats can direct transfer or pass through fixing bolt indirect transfer to the motor on, produce adverse effect to the heat dissipation of motor, make the motor move under high temperature even, lead to the motor ageing problem such as accelerating, puncture and burn out. In the prior art, a heat insulation pad is additionally arranged between a hub motor body and a brake disc, so that the contact area between the brake disc and the hub motor body is reduced, the direct conduction of heat is reduced, and the purpose of heat insulation is achieved. The heat insulation pad can only insulate heat conduction between the brake disc and the hub motor body, can not effectively insulate indirect heat conduction between the brake disc fastening bolt and the hub motor body, and is poor in heat insulation effect. In addition, when the brake disc is disassembled and assembled, the gasket and the brake disc are not provided with an installation positioning point, so that the assembly is difficult, the heat insulation gasket is small, and the heat insulation gasket is easy to lose; in the rotation of the hub motor body, the heat insulation pad has no limit and is easy to rotate along with the heat insulation pad, so that the interference with the calipers is caused. In addition, due to the fact that the internal space of the hub motor is narrow and small and the outgoing line is arranged, the phenomenon that parts are too many and an ABS gear ring and an ABS sensor cannot be installed exists inside the motor, the ABS (anti-lock brake system) function and the function of testing the vehicle speed cannot be achieved, meanwhile, too many parts can also influence the hub motor body to be difficult to dissipate heat, and heat accumulation is caused.
Disclosure of Invention
The invention aims to provide a hub motor brake disc and a mounting structure thereof, which can further prevent heat of the brake disc from being transferred to a hub motor body through a fixing bolt, achieve a better heat insulation effect and reduce heat accumulation of the hub motor body.
In order to solve the technical problem, the brake disc of the hub motor comprises a brake disc main body, wherein a plurality of mounting lugs are arranged on the periphery of the outer edge of the brake disc main body, mounting holes are formed in the middles of the mounting lugs, and heat insulation structures are arranged on the hole wall and two end faces of each mounting hole.
In the wheel hub motor brake disc, the heat insulation structure is arranged on the inner wall and two end faces of the mounting hole to insulate heat, so that the main transfer path of the heat of the brake disc to other parts is effectively blocked, and the purpose of better heat insulation is achieved.
As an improvement of the hub motor brake disc, the heat insulation structure comprises two heat insulation pads which are oppositely arranged along the axial direction of the mounting hole, each heat insulation pad comprises a cushion block and a pad cover, the cushion blocks and the pad covers are of an integrated structure, through holes are formed in the middle of the cushion blocks and the pad covers in a penetrating mode, the pad covers of the two heat insulation pads are embedded into the mounting holes and connected with each other, and the cushion blocks are respectively tightly attached to the mounting surfaces on the two sides of the mounting convex blocks. Utilize the cushion to insulate against heat on the installation face of the both sides of installation lug, utilize the cushion cover to insulate against heat at the inner wall of mounting hole, many-sided separation brake disc main part is with other spare part direct contact heat conduction, makes thermal-insulated effect better.
For the hub motor brake disc with the heat insulation structure formed by the two heat insulation pads, the mounting holes are long round holes, and the outer contour of the pad cover is matched with the mounting holes. The slotted hole structure of mounting hole plays spacing and fixed action to the cover of filling up of embedding, makes the heat insulating mattress can not take place to rotate at wheel pivoted in-process, thoroughly eliminates the risk of heat insulating mattress activity, dislocation, and in addition, when the installation brake disc, the mounting hole provides the location, makes heat insulating mattress simple to operate, quick, when disassembling the brake disc, the heat insulating mattress is fixed as an organic whole with brake disc main part interference nestification, need not to disassemble, the phenomenon of losing can not appear.
For the hub motor brake disc with the heat insulation structure formed by the two heat insulation pads, grooves can be formed in the two side faces of the mounting lug, the cushion blocks are embedded in the grooves in the corresponding positions in an interference mode, the thickness of the cushion blocks is higher than the depth of the grooves, and the cushion blocks and the grooves are preferably in long circles, ellipses or polygons. The recess plays spacing and fixed action equally to the cushion, makes the heat insulating mattress can not take place to rotate at wheel pivoted in-process, thoroughly eliminates the risk of heat insulating mattress activity, dislocation, in addition, when the brake disc dismouting, it is equally more convenient, quick, the heat insulating mattress phenomenon can not appear losing.
For the wheel hub motor brake disc with the heat insulation structure formed by the two heat insulation pads, a plurality of bulges are densely arranged on the inner wall of the through hole, and the bulges are of hemispherical structures. The interference magnitude of the fixing bolt and the through hole is increased, the nesting clamping force is improved, and the heat insulation pad is further prevented from rotating
As another improvement of the brake disc of the hub motor, ABS teeth are processed on the inner ring of the brake disc main body. The cooperation ABS sensor can realize the collection of fast signal of wheel, and then realizes anti-lock function and with the relevant initiative safety coefficient of the fast wheel, need not to be with parts integration such as ring gear, ABS sensor to the wheel hub department of wheel hub motor body, avoid spare part transition to concentrate, increase the heat dispersion of wheel hub motor body, reduce the heat accumulation, also make production assembly process simple, the product function is reliable.
In order to solve the technical problem, the mounting structure of the brake disc of the hub motor is provided, a hub motor body is arranged on one side of the brake disc main body, a fixing bolt is arranged in the through hole, the rod part of the fixing bolt sequentially penetrates through the heat insulation pads on the two sides of the mounting lug, the end part of the fixing bolt is in threaded connection with the hub motor body, and a steering knuckle is arranged in the middle of the hub motor body.
In above-mentioned mounting structure, keep apart the brake disc through two heat insulating mattress, heat conduction between can not only direct separation brake disc main part and the in-wheel motor body, the indirect heat conduction that can effectively separate the brake disc moreover through fastening bolt and in-wheel motor body to cut off disconnected brake disc main part and in-wheel motor body, the hot main heat-conduction route of fastening bolt, reach better thermal-insulated effect, reduce in-wheel motor body heat accumulation.
As a further improvement of the mounting structure, an ABS sensor is fixed on the steering knuckle, and a detection head of the ABS sensor is opposite to the ABS teeth. Parts such as a gear ring and an ABS sensor do not need to be integrated at the hub of the hub motor body, so that the transition concentration of parts is avoided, the production and manufacturing process is simple, and the product function is reliable.
To sum up, adopt above-mentioned in-wheel motor brake disc and mounting structure thereof, can effectively separate the brake disc heat transfer to in-wheel motor body to reach the thermal-insulated purpose of preferred, moreover, have spacing and fixed knot structure during the heat insulating mattress dismouting, easy dismounting can not take place to rotate in the use and shift, improves through brake disc structure in addition, can realize the collection of the fast signal of wheel, reduces the gathering of spare part, reduces the heat accumulation of in-wheel motor body.
Drawings
In the drawings:
fig. 1 is a schematic perspective view of a brake disc of a hub motor according to the present invention.
FIG. 2 is a schematic sectional view of the brake disc of the hub motor of the present invention.
FIG. 3 is a schematic view of a first fitting structure of the heat insulation mat and the mounting hole of the present invention.
FIG. 4 is a schematic view of a second mating structure of the heat insulating mat and the mounting hole of the present invention.
FIG. 5 is a schematic view of the heat insulation mat of the present invention.
Fig. 6 is a schematic view of an installation structure of a brake disc of the hub motor.
Fig. 7 is an expanded schematic view of the installation structure of the brake disc of the hub motor.
In the figure: 1. a brake disc main body; 2. a heat insulating pad; 3. mounting a bump; 4. mounting holes; 5. a cushion block; 6. a cushion cover; 7. a through hole; 8. a groove; 9. a protrusion; 10. ABS teeth; 11. a hub motor body; 12. fixing the bolt; 13. a knuckle; 14. an ABS sensor.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto.
The brake disc of the hub motor comprises a brake disc main body 1, a plurality of mounting lugs 3 are arranged on the periphery of the outer edge of the brake disc main body 1, mounting holes 4 are formed in the middles of the mounting lugs 3, and heat insulation structures are arranged on the hole wall and two end faces of each mounting hole 4.
During the use, thermal-insulated structure all covers the pore wall and the both sides hole terminal surface of mounting hole 4, and the heat of many-sided separation brake disc main part 1 passes through the contact transmission and gives other spare parts, reaches better thermal-insulated effect.
As shown in fig. 1 and 2, the heat insulation structure comprises two heat insulation pads 2 which are oppositely arranged along the axial direction of the mounting hole 4, each heat insulation pad 2 comprises a cushion block 5 and a cushion cover 6, the cushion blocks 5 and the cushion covers 6 are of an integrally formed structure, a through hole 7 is arranged in the middle of each heat insulation pad, the cushion covers 6 of the two heat insulation pads 2 are embedded into the inner interconnection of the mounting hole 4, and the cushion blocks 5 are respectively attached to the mounting surfaces on the two sides of the mounting lug 3. The cushion blocks 5 are used for insulating heat on the mounting surfaces on the two sides of the mounting convex block 3, the cushion cover 6 is used for insulating heat on the inner wall of the mounting hole 4, the main transmission route of the heat of the brake disc is separated, in addition, the cushion cover 6 and the mounting hole 4 are fixedly embedded in an interference mode, the mounting hole 4 is used for positioning during mounting, and the assembly can be easily completed; when being disassembled, the heat insulation pad 2 and the brake disc main body 1 are integrated, so that the brake disc does not need to be disassembled and is not easy to lose
In order to prevent the heat insulation pad 2 from rotating in the mounting hole 4, a limit plane is added in the assembly structure of the heat insulation pad 2 and the mounting hole 4, and the risk that the heat insulation pad 2 moves in the installation and operation process is eliminated. Fig. 3 shows a first alternative structure of the heat insulation pad 2 matched with the mounting hole 4, as shown in fig. 3 and fig. 5, the mounting hole 4 is an oblong hole, the cushion cover 6 is embedded and fixed in the mounting hole 4, and the side surface of the cushion cover 6 is a limiting plane to prevent the heat insulation pad 2 from rotating and dislocating. Fig. 4 shows a second alternative structure of the heat insulation pad 2 matched with the mounting hole 4, as shown in fig. 4 and fig. 5, grooves 8 are formed in both side surfaces of the mounting lug 3, the cushion block 5 is embedded in the groove 8 at the corresponding position, the thickness of the cushion block 5 is higher than the depth of the groove 8, preferably, the cushion block 5 and the groove 8 are both oblong, oval or polygonal, and the joint part of the side surface of the cushion block 5 and the groove 8 is a limiting plane, so that the heat insulation pad 2 is prevented from rotating and dislocating.
As shown in fig. 5, the inner wall of the through hole 7 is densely provided with a plurality of protrusions 9, the protrusions 9 are of a hemispherical structure, so that the friction force between the through hole 7 and the fixing bolt 12 is increased, and the heat insulation pad 2 is further prevented from rotating relatively.
As shown in fig. 1, the inner ring of the brake disc main body 1 is provided with ABS teeth 10, the structure design is ingenious, the ABS sensor 14 is matched to realize the collection of wheel speed signals, the traditional method of mounting a gear ring on a wheel hub is replaced, and the inner space of the wheel hub motor body 11 is saved.
Fig. 6 to 7 show a mounting structure of a brake disc of an in-wheel motor according to the present invention. As shown in fig. 6 and 7, an in-wheel motor body 11 is disposed on one side of the brake disc main body 1, a fixing bolt 12 is disposed in the through hole 7, a rod portion of the fixing bolt 12 sequentially penetrates through the heat insulation pads 2 on both sides of the mounting protrusion 3, and an end portion thereof is in threaded connection with the in-wheel motor body 11, a knuckle 13 is disposed in a middle portion of the in-wheel motor body 11, and preferably, an ABS sensor 14 is fixed on the knuckle 13.
During the use, pass through mounting hole 4 that is fixed with two heat insulating mattress 2 through fixing bolt 12, then screw up on in-wheel motor body 11, parts such as turn to festival 13 on the assembly, heat conduction between can not only directly keep apart brake disc main part 1 and in-wheel motor body 11, and can effectively keep apart the indirect heat conduction that the brake disc passes through fastening bolt and in-wheel motor body 11, better heat-proof effect has, reduce in-wheel motor body 11's part concentration degree in addition, increase the heat-sinking capability of self, reduce the heat accumulation.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or that equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A wheel hub motor brake disc comprises a brake disc main body (1), wherein a plurality of installation convex blocks (3) are arranged on the periphery of the outer edge of the brake disc main body (1), mounting holes (4) are formed in the middle of the installation convex blocks (3), the wheel hub motor brake disc is characterized in that heat insulation structures are arranged on the hole wall and two end faces of each mounting hole (4), each heat insulation structure comprises two heat insulation pads (2) which are axially and oppositely arranged along the mounting holes (4), each heat insulation pad (2) comprises a cushion block (5) and a cushion cover (6), the cushion blocks (5) and the cushion covers (6) are of an integrally formed structure, through holes (7) are arranged in the middle of each heat insulation pad in a penetrating mode, the cushion covers (6) of the two heat insulation pads (2) are embedded into the inner interconnection of the mounting holes (4), and the cushion blocks (5) are tightly attached to the mounting surfaces on two sides of the installation convex blocks (3) respectively, the mounting hole (4) is a long circular hole, and the outer contour of the cushion cover (6) is matched with the mounting hole (4).
2. An in-wheel motor brake disc according to claim 1, characterized in that both sides of the mounting lug (3) are provided with grooves (8), the pad (5) is embedded in the groove (8) at the corresponding position, and the thickness of the pad (5) is higher than the depth of the groove (8).
3. A rotor for an electric hub according to claim 2, wherein the shape of the pads (5) and grooves (8) is oblong, oval or polygonal.
4. A hub motor brake disc according to claim 1, wherein the inner wall of the through hole (7) is densely provided with protrusions (9), and the protrusions (9) are of a hemispherical structure.
5. A brake disc for an in-wheel motor according to claim 1, characterized in that the mounting lugs (3) are evenly spaced around the periphery of the brake disc body (1).
6. An in-wheel motor brake disc according to claim 1, characterized in that the inner ring of the brake disc body (1) is machined with ABS teeth (10).
7. The mounting structure of the in-wheel motor brake disc according to claim 6, characterized in that one side of the brake disc main body (1) is provided with an in-wheel motor body (11), the through hole (7) is internally provided with a fixing bolt (12), the rod part of the fixing bolt (12) sequentially penetrates through the heat insulation pads (2) on two sides of the mounting lug (3), the end part of the fixing bolt is in threaded connection with the in-wheel motor body (11), and the middle part of the in-wheel motor body (11) is provided with a steering knuckle (13).
8. The structure for mounting a brake disc of an in-wheel motor according to claim 7, wherein an ABS sensor (14) is fixed on the knuckle (13), and a probe of the ABS sensor (14) faces the ABS teeth (10).
CN202110521634.1A 2021-05-13 2021-05-13 In-wheel motor brake disc and mounting structure thereof Active CN113339427B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110521634.1A CN113339427B (en) 2021-05-13 2021-05-13 In-wheel motor brake disc and mounting structure thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110521634.1A CN113339427B (en) 2021-05-13 2021-05-13 In-wheel motor brake disc and mounting structure thereof

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CN113339427A CN113339427A (en) 2021-09-03
CN113339427B true CN113339427B (en) 2022-08-30

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19859616A1 (en) * 1998-12-23 2000-07-06 Daimler Chrysler Ag Brake unit with a non-metallic friction ring
CN101559827A (en) * 2009-05-06 2009-10-21 中远船务工程集团有限公司 Smoke exhaust pipe penetration method
CN101666349A (en) * 2008-09-03 2010-03-10 现代自动车株式会社 Mounting unit and brake disk with the mounting unit
JP2010261481A (en) * 2009-04-30 2010-11-18 Sunstar Engineering Inc Method for assembling floating brake disk
CN103682550A (en) * 2013-12-03 2014-03-26 上海卫星装备研究所 Supporting device used for satellite antenna deployment
CN204041517U (en) * 2014-07-11 2014-12-24 爱协林热处理系统(北京)有限公司 Arbor separated type is from cooling high temperature circulation fan
CN205978189U (en) * 2016-06-30 2017-02-22 常州中车铁马科技实业有限公司 Wheel dress formula brake disc device
CN108317194A (en) * 2018-03-26 2018-07-24 湖南世鑫新材料有限公司 Bullet train axle-mounted brake disk component
CN208268265U (en) * 2018-05-25 2018-12-21 湖南世鑫新材料有限公司 A kind of anti-extrusion/shearing connection structure of composite brake disc
CN109236901A (en) * 2018-10-11 2019-01-18 南京中盛铁路车辆配件有限公司 Bullet train wheel is brake disk mounted
CN211231359U (en) * 2019-12-23 2020-08-11 北京汽车集团越野车有限公司 Brake disc and car

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19859616A1 (en) * 1998-12-23 2000-07-06 Daimler Chrysler Ag Brake unit with a non-metallic friction ring
CN101666349A (en) * 2008-09-03 2010-03-10 现代自动车株式会社 Mounting unit and brake disk with the mounting unit
JP2010261481A (en) * 2009-04-30 2010-11-18 Sunstar Engineering Inc Method for assembling floating brake disk
CN101559827A (en) * 2009-05-06 2009-10-21 中远船务工程集团有限公司 Smoke exhaust pipe penetration method
CN103682550A (en) * 2013-12-03 2014-03-26 上海卫星装备研究所 Supporting device used for satellite antenna deployment
CN204041517U (en) * 2014-07-11 2014-12-24 爱协林热处理系统(北京)有限公司 Arbor separated type is from cooling high temperature circulation fan
CN205978189U (en) * 2016-06-30 2017-02-22 常州中车铁马科技实业有限公司 Wheel dress formula brake disc device
CN108317194A (en) * 2018-03-26 2018-07-24 湖南世鑫新材料有限公司 Bullet train axle-mounted brake disk component
CN208268265U (en) * 2018-05-25 2018-12-21 湖南世鑫新材料有限公司 A kind of anti-extrusion/shearing connection structure of composite brake disc
CN109236901A (en) * 2018-10-11 2019-01-18 南京中盛铁路车辆配件有限公司 Bullet train wheel is brake disk mounted
CN211231359U (en) * 2019-12-23 2020-08-11 北京汽车集团越野车有限公司 Brake disc and car

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