CN113983891A - Carbon-ceramic brake disc end face run-out testing device and testing method - Google Patents
Carbon-ceramic brake disc end face run-out testing device and testing method Download PDFInfo
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- CN113983891A CN113983891A CN202111286011.7A CN202111286011A CN113983891A CN 113983891 A CN113983891 A CN 113983891A CN 202111286011 A CN202111286011 A CN 202111286011A CN 113983891 A CN113983891 A CN 113983891A
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- dial indicator
- brake disc
- carbon
- bearing
- ceramic brake
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- 238000012360 testing method Methods 0.000 title claims abstract description 58
- 239000000919 ceramic Substances 0.000 title claims abstract description 33
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000010998 test method Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0025—Measuring of vehicle parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Braking Arrangements (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention relates to a carbon-ceramic brake disc end face run-out testing device and a testing method, and belongs to the technical field of braking equipment. The device comprises a test board, the lower end of the test board is connected with a bearing, the bearing is connected with a bearing seat, the bearing seat is welded on a base, at least one fixture and at least 2 fixture limiting blocks are arranged on the test board, a threaded column support is fixedly arranged in the middle of the test board, a threaded column is arranged on the threaded column support, a screwing cap is in threaded connection with the threaded column, a support base is arranged on the periphery of the base, a support rod is fixedly arranged on the support base, a sliding block is slidably connected onto the support rod, a dial indicator supporting rod is arranged on the sliding block, and a dial indicator is arranged on the dial indicator supporting rod. The position of the clamp can be adjusted to adapt to carbon ceramic brake discs with different inner diameter sizes, the diameter variation of the brake disc is 60mm, and the length of the clamp can be adjusted according to actual conditions to obtain larger diameter variation; the advantage of using the tightening cap as an adjusting tool is that the tightening cap is simple to process and has a low cost.
Description
Technical Field
The invention relates to a carbon-ceramic brake disc end face run-out testing device and a testing method, and belongs to the technical field of braking equipment.
Background
The carbon-ceramic brake disc is made of the carbon fiber reinforced silicon carbide-based composite material, combines the physical characteristics of the carbon fiber and the polycrystalline silicon carbide, has the advantages of low density, high temperature resistance, high and stable friction performance and the like, and has wide application prospect in the high-energy brake field of automobiles, high-speed trains, airplanes and the like.
The end face runout of the brake disc is key data indicating the flatness of the friction surface of the brake disc, and the end face runout of the brake disc should not exceed 0.05mm according to the current part processing technology and vehicle use requirements. If the data exceeds the standard, the contact pressure between the disc surface and the friction disc is unevenly distributed in the braking process, the braking torque fluctuation is generated, and the feeling of visually reflecting the braking to a driver and members on the vehicle is the braking.
Therefore, the invention aims to provide a device and a method for testing the end face runout of carbon-ceramic brake discs with different sizes in a certain range.
Disclosure of Invention
The invention aims to provide a carbon-ceramic brake disc end face run-out testing device and a testing method.
In order to solve the technical problem, the scheme of the invention is as follows:
the utility model provides a carbon pottery brake disc end face run-out testing arrangement, includes the testboard, the testboard lower extreme is connected with the bearing, the bearing is connected with the bearing frame, the bearing frame welding is on the base, be provided with at least one fixture and 2 at least fixture stoppers on the testboard, the fixed screw thread post support that is provided with of testboard intermediate position, be provided with the screw thread post on the screw thread post support, threaded connection has the cap of screwing up on the screw thread post, the periphery of base is provided with the support base, the fixed cradling piece that is provided with on the support base, slidable connection has the slider on the cradling piece, be provided with percentage table branch on the slider, set up the percentage table on the branch table branch.
The number of the fixtures is 4, the number of the fixture limiting blocks is 8, and the fixture limiting blocks are arranged on two sides of the fixtures.
And a threaded hole is formed in the center of the threaded column support and used for mounting the threaded column.
The bearing is an angular contact ball bearing, the bearing is connected with the base and the test board, and the outer side of the bearing is in interference fit with the bearing seat.
The test bench is in interference fit with the inner side of the bearing.
By rotating the tightening cap, the tightening cap and the clamp are contacted with each other, and the clamp is pushed to move.
The sliding block can be fixed at a certain position on the support rod through a bolt, a through hole is formed in one side of the sliding block and used for installing the dial indicator supporting rod, the dial indicator supporting rod can move along the through hole of the sliding block and is fixed through the bolt and used for adjusting the measuring point position of the dial indicator, and the dial indicator is installed at the tail end of the dial indicator supporting rod and is fixed through the bolt.
A test method of a carbon-ceramic brake disc end face run-out test device comprises the following steps:
the method comprises the following steps: firstly, unscrewing the tightening cap, and withdrawing the fixture to the inside;
step two: placing the ring part of the carbon ceramic brake disc without a joint, and rotating the tightening cap until the carbon ceramic brake disc is clamped;
step three: moving the bracket rod of the dial indicator to enable the measuring head of the dial indicator to be positioned near a first measuring point, slowly adjusting the height of the sliding block to enable the measuring head of the dial indicator to be in contact with the measured end face and keep vertical, and zeroing the pointer with a certain compression amount;
step four: slowly and uniformly rotating the test bench, observing the amplitude of the pointer of the dial indicator, taking the difference value between the maximum reading and the minimum reading, and taking the result as the end face runout error at the diameter; the second and third measurement points can be tested in the same way.
Compared with the prior art, the invention has the beneficial effects that:
the position of the clamp can be adjusted to adapt to carbon ceramic brake discs with different inner diameter sizes, the diameter variation of the brake disc is 60mm, and the length of the clamp can be adjusted according to actual conditions to obtain larger diameter variation; the tightening cap used as an adjusting tool has the advantages of simple processing and lower cost; the large-size angular contact ball bearing can bear the weight of the test table and the brake disc, meanwhile, the rotation stability is kept, and the test stability and precision are improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a carbon-ceramic brake disc end face runout detection device of the present invention;
FIG. 2 is a schematic cross-sectional structure view of the carbon-ceramic brake disc end face runout detection device of the present invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the 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. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
Referring to fig. 1-2, the end face runout testing device for the carbon-ceramic brake disc comprises a testing table 101, wherein the lower end of the testing table 101 is installed with a bearing 104, the bearing 104 is installed in a matching manner with a bearing seat 103, and the bearing seat 103 is arranged on the upper surface of a base 102; the test bench 101 is provided with 4 fixtures 108 and 8 fixture limiting blocks 109; a threaded column support 107 is arranged in the middle of the test bench 101, a threaded column 106 is arranged on the threaded column support 107, and a tightening cap 105 is arranged on the threaded column 106; a support base 114 is arranged on the periphery of the base 102, a support rod 111 is arranged on the support base 114, a sliding block 110 is arranged on the support rod 111, a dial indicator supporting rod 112 is arranged on the sliding block 110, and a dial indicator 113 is arranged on the dial indicator supporting rod 112;
further, the diameter of the base 102 is 450mm, the bearing seat 103 is cylindrical with steps inside, the diameter of the step is 160mm, the diameter of the bearing seat matched with the outer diameter of the bearing 104 is 200mm, and the bearing seat 103 is welded with the base 102;
further, a threaded hole is formed in the center of the threaded column support 107 and used for mounting the threaded column 106;
further, the bearing 104 is an angular contact ball bearing, the base 102 and the test bench 101 are connected, the angular contact ball bearing can bear large axial force, the weight requirements of the test bench and the brake disc above the bearing are met, and the size of the bearing 104 is 130mm in inner diameter and 200mm in outer diameter. The outer side of the bearing 104 is in interference fit with the bearing seat 103;
further, the test bench 101 and the inner side of the bearing 104 are arranged in an interference fit mode, and the diameter of the test bench 101 is 450 mm;
further, the tightening cap 105 is rotated, the tightening cap 105 and the fixture 108 are contacted with each other, and the fixture 108 is pushed to move, so that the fixture 108 is enlarged and reduced, and the inner diameters of carbon-ceramic brake discs with different sizes can be adapted; wherein, a limiting block 109 is installed on the surface of the testing platform 101 for limiting the moving direction of the fixture 108. Wherein the height of the fixture 108 is 15mm, the inclination angles of the inclined surface of the tightening cap 105 and the surface of the test bench 101 are both 55 degrees, and the fixture 108 can be pushed out in the radial direction by 30mm at most;
further, a dial indicator support base 114 is arranged on the base 114, a support rod 111 is mounted on the dial indicator support base 114, a sliding block 110 arranged on the support rod 111 can move up and down on the support rod 111 to adjust the height of the dial indicator 113, and the sliding block 110 can be fixed at a certain position on the support rod 111 through a bolt. A through hole is formed in one side of the sliding block 110, the dial indicator supporting rod 112 is installed, the dial indicator supporting rod 112 can move along the through hole of the sliding block 110 and is fixed through a bolt and used for adjusting the position of a measuring point of the dial indicator 113, and the dial indicator 113 is installed at the tail end of the dial indicator supporting rod 112 and is fixed through the bolt;
a test method of a carbon-ceramic brake disc end face run-out test device comprises the following steps:
the method comprises the following steps: firstly, unscrewing the screwing cap 105 and returning the fixture 108 to the inside;
step two: the ring part placed into the carbon ceramic brake disc does not comprise a joint, and the tightening cap 105 is rotated until the carbon ceramic brake disc is clamped;
step three: the dial indicator support rod 111 is moved so that the measuring head of the dial indicator 113 is positioned near the first measuring point. Slowly adjusting the height of the sliding block 110 to enable the measuring head of the dial indicator 113 to be in contact with the measured end face and keep vertical, and zeroing the pointer with a certain compression amount;
step four: slowly and uniformly rotating the test table 101, observing the amplitude of the pointer of the dial indicator 113, taking the difference value between the maximum reading and the minimum reading, and taking the result as the end face runout error at the diameter; the second and third measurement points can be tested in the same way.
Example 2
The end face run-out testing device for the carbon-ceramic brake disc is structurally as described in embodiment 1, except that the diameter of the testing table 101 is set to be 200mm, and the lower surface of the carbon-ceramic brake disc is exposed and used for measuring thickness difference of the brake disc.
Example 3
The structure of the end face run-out testing device for the carbon-ceramic brake disc is as described in embodiment 1, except that the lengths of the clamp 108 and the limiting block 109 are changed, the diameter of the tightening cap 105 is changed, and the diameter of the inner hole of the testing table 101 is changed to adjust the testing range, so that the end face run-out testing device is suitable for brake discs of different sizes.
Specifically, the position of the clamp can be adjusted to adapt to carbon ceramic brake discs with different inner diameter sizes, the diameter variation of the carbon ceramic brake discs is 60mm, and the length of the clamp can be adjusted according to actual conditions to obtain larger diameter variation; the tightening cap used as an adjusting tool has the advantages of simple processing and lower cost; the large-size angular contact ball bearing can bear the weight of the test table and the brake disc, meanwhile, the rotation stability is kept, and the test stability and precision are improved.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
Claims (8)
1. The utility model provides a carbon pottery brake disc end face run-out testing arrangement which characterized in that: comprises a test bench (101), the lower end of the test bench (101) is connected with a bearing (104), the bearing (104) is connected with the bearing seat (103), the bearing seat (103) is welded on the base (102), the test bench (101) is provided with at least one fixture (108) and at least 2 fixture limiting blocks (109), a threaded column support (107) is fixedly arranged at the middle position of the test bench (101), a threaded column (106) is arranged on the threaded column support (107), a tightening cap (105) is connected to the threaded column (106) in a threaded manner, a support base (114) is arranged on the periphery of the base (102), a support rod (111) is fixedly arranged on the support base (114), the sliding block (110) is connected to the support rod (111) in a sliding mode, the dial indicator supporting rod (112) is arranged on the sliding block (110), and the dial indicator (113) is arranged on the dial indicator supporting rod (112).
2. The carbon-ceramic brake disc end face run-out testing device of claim 1, wherein: the number of the fixtures (108) is 4, the number of the fixture limiting blocks (109) is 8, and the fixture limiting blocks (109) are arranged on two sides of the fixtures (108).
3. The carbon-ceramic brake disc end face run-out testing device of claim 1, wherein: and a threaded hole is formed in the center of the threaded column support (107) and used for mounting the threaded column (106).
4. The carbon-ceramic brake disc end face run-out testing device of claim 1, wherein: the bearing (104) is an angular contact ball bearing and is connected with the base (102) and the test bench (101), and the outer side of the bearing (104) is in interference fit with the bearing seat (103).
5. The carbon-ceramic brake disc end face run-out testing device of claim 1, wherein: the test bench (101) and the inner side of the bearing (104) are in interference fit.
6. The carbon-ceramic brake disc end face run-out testing device of claim 1, wherein: by rotating the tightening cap (105), the tightening cap (105) and the jig (108) are contacted with each other, and the jig (108) is pushed to move.
7. The carbon-ceramic brake disc end face run-out testing device of claim 1, wherein: the sliding block (110) can be fixed at a certain position on the support rod (111) through a bolt, a through hole is formed in one side of the sliding block (110) and used for installing the dial indicator supporting rod (112), the dial indicator supporting rod (112) can move along the through hole of the sliding block (110) and is fixed through the bolt and used for adjusting the measuring point position of the dial indicator (113), and the dial indicator (113) is installed at the tail end of the dial indicator supporting rod (112) and is fixed through the bolt.
8. A test method of a carbon-ceramic brake disc end face run-out test device according to any one of claims 1-7, characterized by comprising the following steps:
the method comprises the following steps: firstly, unscrewing the screwing cap (105) and withdrawing the fixture (108) to the inside;
step two: placing the ring portion of the carbon ceramic brake disc, excluding the clutch, and rotating the tightening cap (105) until the carbon ceramic brake disc is clamped;
step three: moving the bracket rod (111) of the dial indicator to enable the measuring head of the dial indicator (113) to be positioned near a first measuring point, slowly adjusting the height of the sliding block (110), enabling the measuring head of the dial indicator (113) to be in contact with the measured end face and keep vertical, and zeroing the pointer with a certain compression amount;
step four: slowly and uniformly rotating the test bench (101), observing the amplitude of the pointer of the dial indicator (113), and taking the difference value between the maximum reading and the minimum reading, wherein the result is used as the end face runout error at the diameter; the second and third measurement points can be tested in the same way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111286011.7A CN113983891B (en) | 2021-11-02 | 2021-11-02 | Carbon ceramic brake disc end face runout testing device and testing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111286011.7A CN113983891B (en) | 2021-11-02 | 2021-11-02 | Carbon ceramic brake disc end face runout testing device and testing method |
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| Publication Number | Publication Date |
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| CN113983891A true CN113983891A (en) | 2022-01-28 |
| CN113983891B CN113983891B (en) | 2024-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111286011.7A Active CN113983891B (en) | 2021-11-02 | 2021-11-02 | Carbon ceramic brake disc end face runout testing device and testing method |
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| CN210268511U (en) * | 2019-10-15 | 2020-04-07 | 烟台乐泰汽车配件有限公司 | Brake disc surface smoothness detection device |
| CN210603084U (en) * | 2019-08-26 | 2020-05-22 | 杭州昌立机械有限公司 | Brake disc detection mechanism |
| CN210633308U (en) * | 2019-09-11 | 2020-05-29 | 蓬莱市金鑫铸造有限公司 | Fixed clamping device is used in brake disc production |
| CN211220251U (en) * | 2019-11-07 | 2020-08-11 | 武汉兴园金属有限责任公司 | Automobile brake disc fixing device |
| KR102151226B1 (en) * | 2019-10-29 | 2020-09-02 | 서한산업(주) | Jig module for multi-axis strength evaluation test of vehicle brake disc specimen |
| CN212409651U (en) * | 2020-05-06 | 2021-01-26 | 苏州华轮汽摩配件有限公司 | End face runout detection clamping tool |
| CN213090615U (en) * | 2020-05-20 | 2021-04-30 | 海门市柯成汽车零部件制造有限公司 | Brake disc detection achievement platform that beats |
-
2021
- 2021-11-02 CN CN202111286011.7A patent/CN113983891B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4324620A1 (en) * | 1993-07-22 | 1995-01-26 | Teves Gmbh Alfred | Test stand for wear measurements on brake discs |
| CN202240552U (en) * | 2011-08-12 | 2012-05-30 | 龙口金正机械有限公司 | Automatic clamping device for drilling automobile brake discs with multiple diameter specifications |
| CN205043197U (en) * | 2014-06-06 | 2016-02-24 | 克林格恩贝格股份公司 | A clamping system that is used for measuring work piece on machine |
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| CN210633308U (en) * | 2019-09-11 | 2020-05-29 | 蓬莱市金鑫铸造有限公司 | Fixed clamping device is used in brake disc production |
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| KR102151226B1 (en) * | 2019-10-29 | 2020-09-02 | 서한산업(주) | Jig module for multi-axis strength evaluation test of vehicle brake disc specimen |
| CN211220251U (en) * | 2019-11-07 | 2020-08-11 | 武汉兴园金属有限责任公司 | Automobile brake disc fixing device |
| CN212409651U (en) * | 2020-05-06 | 2021-01-26 | 苏州华轮汽摩配件有限公司 | End face runout detection clamping tool |
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| CN113983891B (en) | 2024-07-12 |
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