CN102288404B - Temperature field and thermal elastic deformation test device for disc brake - Google Patents
Temperature field and thermal elastic deformation test device for disc brake Download PDFInfo
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- CN102288404B CN102288404B CN201110229888.2A CN201110229888A CN102288404B CN 102288404 B CN102288404 B CN 102288404B CN 201110229888 A CN201110229888 A CN 201110229888A CN 102288404 B CN102288404 B CN 102288404B
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Abstract
The invention relates to a temperature field and thermal elastic deformation test device for a disc brake. The test device comprises a test system and a support system, wherein the test system comprises non-contact displacement meters, a non-contact displacement meter mounting bracket, thermocouples and a thermocouple mounting bracket; the non-contact displacement meters are symmetrically distributed at the two sides of a brake disc by means of the non-contact displacement meter mounting bracket and are uniformly distributed along the circumference direction of the brake disc except a position where a brake caliper is arranged, and a space is kept between the non-contact displacement meters and the brake disc; the thermocouples are symmetrically distributed at the two sides of the brake disc by means of the thermocouple mounting bracket and are uniformly distributed along the circumference direction of the brake disc except the position where the brake calliper is arranged, and the thermocouples keep in touch with the brake disc; and the non-contact displacement meter mounting bracket and the thermocouple mounting bracket are arranged on the support system. The test device is low in price, strong in practicability and high in accuracy during test and capable of realizing the aim of rapid testing on the disc brake temperature field and thermal elastic deformation.
Description
Technical field
The invention belongs to a kind of proving installation, be specifically related to a kind of disc brake temperature field and thermal elastic deformation test device.
Background technology
Disc brake has rapid heat dissipation, lightweight, simple structure, easy to adjust, brake efficiency stable and the advantage such as Heat stability is good and being widely used on the vehicles such as car, lorry and heavy duty truck.Interaction due to brake disc ventilation slot and the unequal architectural feature of inside and outside wall thickness and various friction and heat, exist complicated coupled relation between disc brake transient temperature, normal stress and thermoelastic distortion, and the temperature field distribution character of disc brake and the measurement of thermoelastic distortion have important value to researchs such as brake judder, squeal, brake wear and brake heat instability.At present, the equipment of infrared imaging instrument and so on can be measured the Temperature Distribution of a certain moment brake disc card, but response speed is slower, still can not satisfy the needs of brake disc card temperature distributing measuring in the braking overall process, and the equipment of Doppler vibrometer and hot spot vialog and so on can accurately be measured the brake disc vibration characteristics, and then be converted into the card change in displacement, but it is expensive, does not possess the characteristics of widespread use.
Summary of the invention
The purpose of this invention is to provide a kind of disc brake cheap and response test fast temperature field and thermal elastic deformation test device, to realize the test of braking overall process and the quick response test to surface temperature and the thermoelastic distortion of disc brake.
Technical scheme of the present invention is as follows:
A kind of disc brake temperature field and thermal elastic deformation test device, it comprises test macro and support system, described test macro comprises contactless displacement meter, contactless displacement meter mounting bracket, thermopair and the installation of TC support; Described contactless displacement meter is symmetrically distributed in the both sides of brake disc by contactless displacement meter mounting bracket, and is evenly distributing along the brake disc circumferencial direction except the position that caliper is installed, and keeps spacing with brake disc; Described thermopair is symmetrically distributed in the both sides of brake disc by the installation of TC support, and is evenly distributing along the brake disc circumferencial direction except the position that caliper is installed, and keeps in touch with brake disc; Described contactless displacement meter mounting bracket and the installation of TC support are arranged on support system.Adopt above simple sensor and supporting construction to carry out reasonable combination, can realize the test of braking overall process and quick response test to surface temperature and the thermoelastic distortion of disc brake.
Further, described device also includes positioning system, and described positioning system comprises location fluted disc and positioning disc, the center pit clearance fit of positioning disc and brake disc, and location fluted disc and positioning disc center pit are bolted; Described contactless displacement meter mounting bracket and the installation of TC support coordinate with the tooth of location on fluted disc respectively and position.This positioning system can be located more accurately to test macro, improves the accuracy of whole test macro.Specifically at the trial, should first remove locating device, thereby alleviate proving installation weight and avoid the locating device vibration to the interference of proving installation.
Further, described contactless displacement meter mounting bracket and the installation of TC support are fork head type, have a plurality ofly, and pitch respectively in the brake disc both sides, and jaw one end is fixed on support system, and the other end coordinates with tooth on the fluted disc of location and positions.This supporting structure is simple, and is easy for installation.
In addition, two of jaw is symmetrically distributed with mounting hole on interdigital, and fixedly contactless displacement meter or thermopair are installed, and this mounting means is more firm, facilitates.
The following mounting structure of concrete employing of thermopair can guarantee the contact of all the other brake disc cards better.The end that thermopair contacts with brake disc passes interdigital mounting hole; be equipped with the thermocouple protection headgear on it; thermocouple protection headgear one side is provided with Compress Spring; Compress Spring is pressed thermopair by the installation of TC rack plate compression and is touched on the brake disc card, described the installation of TC rack plate be fixed on interdigital on.
The contactless displacement meter is arranged in mounting hole on the installation of TC support interdigital, and by nut lock, this installation form is simple, convenient.
Further, support system is comprised of mounting bracket stationary installation and support, and an end of contactless displacement meter mounting bracket and the installation of TC support is arranged on the mounting bracket stationary installation, and the mounting bracket stationary installation is connected and fixed again and between support.Mounting bracket stationary installation and support are separated, facilitate the manufacturing separately, and facilitate the installation of contactless displacement meter mounting bracket and the installation of TC support.
And for fear of the vibrations of the stand of the detent interference to proving installation, preferably support is fixed on a mounting seat of separating with the detent mounting seat.
Have said structure as seen, this proving installation has the following advantages:
1, can realize the temperature field Quick Measurement: utilize that the thermopair precision is high, the characteristic of fast response time, with certain radian be distributed in the circumference of brake disc on by the installation of TC support it, brake disc often rotates a circle, and can realize that brake disc both sides are in the repeatedly measurement of the surface temperature of the installation of TC support installed position; Simultaneously, caliper both sides distribution also has the installation of TC support, and the thermopair of installing on it can be measured the temperature of brake disc turnover friction area, and this is significant to disc brake heat-machine Coupling Research.
2, can realize the thermoelastic distortion Quick Measurement: utilize that contactless displacement meter precision is high, the characteristic of fast response time, with certain radian be distributed in the circumference of brake disc on by contactless displacement meter mounting bracket it, brake disc often rotates a circle, and can realize that brake disc both sides are in the repeatedly measurement of the surface temperature of contactless displacement meter mounting bracket installed position.
3, can realize the accurate location of sensor: adopt simple and reasonable positioning system, guarantee that the right alignment between brake disc, positioning disc and location fluted disc three is consistent.To crossing the accurate Calculation to the angle of width, height and the tooth of each tooth on the fluted disc of location and between cog, assurance the installation of TC support and contactless displacement meter mounting bracket radially, the installation accuracy of axial and circumferential.
4, adopt simple and reasonable support system, test macro is carried out firmly reasonably supporting, and the vibrations of stand of avoiding detent have improved to the interference of proving installation the precision of measuring.
Description of drawings
Fig. 1 is the structural representation of this disc brake temperature field and thermal elastic deformation test device;
Fig. 2 is caliper installation site schematic diagram;
Fig. 3 A is the assembling schematic diagram between brake disc, location fluted disc and positioning disc;
Fig. 3 B is the structural representation of brake disc, location fluted disc and positioning disc;
Fig. 4 A is the structural representation of thermopair;
Fig. 4 B is the structural representation of the installation of TC support;
Fig. 5 A is the scheme of installation of thermopair;
Fig. 5 B is the A-A cut-open view of Fig. 5 A;
Fig. 6 A is the structural representation of non-contact displacement meter;
Fig. 6 B is the structural representation of non-contact displacement meter mounting bracket;
Fig. 7 A is the scheme of installation of non-contact displacement meter;
Fig. 7 B is the B-B cut-open view of Fig. 7 A.
Embodiment
As depicted in figs. 1 and 2, this disc brake temperature field and thermal elastic deformation test device comprise test macro, support system and positioning system.
In conjunction with referring to Fig. 1 and Fig. 3 A and Fig. 3 B, positioning system comprises location fluted disc 1 and positioning disc 2, the center pit clearance fit of positioning disc 2 and brake disc 3, and location fluted disc 1 is bolted with positioning disc 2 center pits.
In conjunction with referring to Fig. 1 and Fig. 4 A and Fig. 4 B, test macro comprises contactless displacement meter 4, contactless displacement meter mounting bracket 5, thermopair 6 and the installation of TC support 7.
Referring to Fig. 6 A, Fig. 6 B and Fig. 7 A and Fig. 7 B, contactless displacement meter mounting bracket 5 is mounting brackets of a kind of fork head type, and number has 3, pitch simultaneously the both sides at brake disc 3, jaw one end is bolted on the mounting bracket stationary installation 8 of support system, and the other end positions with the tooth clamping of locating on fluted disc 1.Two of this jaw is symmetrically distributed with mounting hole on interdigital, and contactless displacement meter 4 is arranged in mounting hole on contactless displacement meter mounting bracket 5 interdigital, and by nut lock.Contactless displacement meter 4 is symmetrically distributed in the both sides of brake disc 3 by contactless displacement meter mounting bracket 5, and is evenly distributing 3 pairs along the brake disc circumferencial direction except the position that caliper 10 is installed, and keeps the spacing of 2.8mm constant with brake disc.
Referring to Fig. 4 A, Fig. 4 B and Fig. 5 A, Fig. 5 B, the installation of TC support 7 is also a kind of mounting bracket of fork head type, and number has 6, pitch simultaneously the both sides at brake disc 3, jaw one end is bolted on the mounting bracket stationary installation 8 of support system, and the other end positions with the tooth clamping of locating on fluted disc 1.two of this jaw is symmetrically distributed with mounting hole on interdigital, the end that thermopair 6 contacts with brake disc 3 passes interdigital mounting hole, by Screw assembly, thermocouple protection headgear 12 is arranged on it, thermocouple protection headgear 12 1 sides penetrate Compress Spring 13, Compress Spring 13 is by the installation of TC rack plate 14 compressions on interdigital, thereby thermopair 6 is pressed on the brake disc card and keeps in touch, during the thermopair wearing and tearing, pretightning force by Compress Spring 13 can guarantee the contact that the thermopair moment and brake disc 3 surface maintenances are suitable, the installation site that does not need the manual shift thermopair.14 of the installation of TC rack plates are to be fastened on the interdigital outside by screw, plain cushion and spring shim.Thermopair 6 is symmetrically distributed in the both sides of brake disc by the installation of TC support 7, and is evenly distributing 6 pairs along the brake disc circumferencial direction except the position that caliper 10 is installed, and keeps in touch with brake disc.
Referring to Fig. 1, support system is comprised of mounting bracket stationary installation 8 and support 9, be provided with threaded hole 11 on mounting bracket stationary installation 8, one end of contactless displacement meter mounting bracket 5 and the installation of TC support 7 is threaded connection on mounting bracket stationary installation 8, is bolted fixing between mounting bracket stationary installation 8 and support 9.Support 9 is fixed on a mounting seat of separating with the detent mounting seat.
Claims (8)
1. a disc brake temperature field and thermal elastic deformation test device, it comprises test macro and support system, its characteristics are:
Described test macro comprises contactless displacement meter (4), contactless displacement meter mounting bracket (5), thermopair (6) and the installation of TC support (7); Described contactless displacement meter (4) is symmetrically distributed in the both sides of brake disc (3) by contactless displacement meter mounting bracket (5), and is evenly distributing along the brake disc circumferencial direction except the position that caliper (10) is installed, and keeps at a distance with brake disc; Described thermopair (6) is symmetrically distributed in the both sides of brake disc by the installation of TC support (7), and is evenly distributing along the brake disc circumferencial direction except the position that caliper (10) is installed, and keeps in touch with brake disc;
Described contactless displacement meter mounting bracket (5) and the installation of TC support (7) are arranged on support system.
2. disc brake temperature field according to claim 1 and thermal elastic deformation test device, it is characterized in that: described device also comprises positioning system, described positioning system comprises location fluted disc (1) and positioning disc (2), the center pit clearance fit of positioning disc (2) and brake disc (3), location fluted disc (1) is bolted with positioning disc (2) center pit; Described contactless displacement meter mounting bracket (5) and the installation of TC support (7) coordinate with tooth on location fluted disc (1) respectively and position.
3. disc brake temperature field according to claim 1 and 2 and thermal elastic deformation test device, it is characterized in that: described contactless displacement meter mounting bracket (5) and the installation of TC support (7) are fork head type, have a plurality of supports, and pitch respectively in brake disc (3) both sides, jaw one end is fixed on support system, and the other end coordinates with tooth on location fluted disc (1) and positions.
4. disc brake temperature field according to claim 3 and thermal elastic deformation test device is characterized in that: two of described jaw is symmetrically distributed with mounting hole on interdigital, and fixedly contactless displacement meter (4) or thermopair (6) are installed.
5. disc brake temperature field according to claim 4 and thermal elastic deformation test device; it is characterized in that: described thermopair (6) passes interdigital mounting hole with the end that brake disc (3) contacts; be equipped with thermocouple protection headgear (12) on it; thermocouple protection headgear (12) one sides are provided with Compress Spring (13); Compress Spring (13) is pressed on the brake disc card by the installation of TC rack plate (14) the compression termination with thermopair (6), described the installation of TC rack plate (14) be fixed on interdigital on.
6. disc brake temperature field according to claim 4 and thermal elastic deformation test device, it is characterized in that: described contactless displacement meter (4) is arranged on contactless displacement meter mounting bracket (5)) interdigital on mounting hole in, and by nut lock.
7. disc brake temperature field according to claim 1 and 2 and thermal elastic deformation test device, it is characterized in that: described support system is comprised of mounting bracket stationary installation (8) and support (9), one end of contactless displacement meter mounting bracket (5) and the installation of TC support (7) is arranged on mounting bracket stationary installation (8), and mounting bracket stationary installation (8) is connected and fixed again and between support (9).
8. disc brake temperature field according to claim 7 and thermal elastic deformation test device, it is characterized in that: described support (9) is fixed on a mounting seat of separating with the detent mounting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110229888.2A CN102288404B (en) | 2011-08-11 | 2011-08-11 | Temperature field and thermal elastic deformation test device for disc brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110229888.2A CN102288404B (en) | 2011-08-11 | 2011-08-11 | Temperature field and thermal elastic deformation test device for disc brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102288404A CN102288404A (en) | 2011-12-21 |
| CN102288404B true CN102288404B (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110229888.2A Active CN102288404B (en) | 2011-08-11 | 2011-08-11 | Temperature field and thermal elastic deformation test device for disc brake |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110261130B (en) * | 2019-05-30 | 2020-08-18 | 同济大学 | Automobile disc brake deformation identification method |
| CN113916551B (en) * | 2021-10-12 | 2024-05-07 | 中国汽车工程研究院股份有限公司 | Method for measuring thermal deformation of brake disc and data processing method |
| US20230211767A1 (en) * | 2022-01-06 | 2023-07-06 | Hydro-Aire Aerospace Corporation | Aircraft braking indicators |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4019580B2 (en) * | 1999-12-24 | 2007-12-12 | 株式会社明電舎 | Brake testing system for vehicles |
| CN201834649U (en) * | 2010-09-30 | 2011-05-18 | 北京工业大学 | State monitoring device for disc brake of mining hoist |
| CN201837529U (en) * | 2010-10-11 | 2011-05-18 | 山东交通学院 | Combination property test-bed for disc brake |
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Effective date of registration: 20221103 Address after: 311200 Wanxiang Road, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee after: Wanxiang Qianchao Co.,Ltd. Address before: 510000 2414-2416 of the main building 371, five mountain road, Tianhe District, Guangzhou, Guangdong. Patentee before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Effective date of registration: 20221103 Address after: 510000 2414-2416 of the main building 371, five mountain road, Tianhe District, Guangzhou, Guangdong. Patentee after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: 400023, No. 260, Jianxin East Road, Jiangbei District, Chongqing Patentee before: Chongqing Changan Automobile Co.,Ltd. |
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