CN107991043B - Return spring measuring device - Google Patents
Return spring measuring device Download PDFInfo
- Publication number
- CN107991043B CN107991043B CN201810074344.5A CN201810074344A CN107991043B CN 107991043 B CN107991043 B CN 107991043B CN 201810074344 A CN201810074344 A CN 201810074344A CN 107991043 B CN107991043 B CN 107991043B
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- measuring
- return spring
- parking
- turntable
- pull rod
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- 238000005259 measurement Methods 0.000 claims abstract description 33
- 238000012360 testing method Methods 0.000 claims abstract description 27
- 238000009434 installation Methods 0.000 abstract description 11
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000004088 simulation Methods 0.000 abstract description 2
- 238000009530 blood pressure measurement Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention provides a return spring measuring device, and belongs to the technical field of brake equipment detection. The measuring device for the return spring comprises a pressure testing machine and a measuring tool arranged on the pressure testing machine, wherein a parking support with a rotating shaft and a rotating disc sleeved on the rotating shaft are arranged on the measuring tool; according to the invention, through setting the measuring tool, the simulation of the return spring in the actual installation state is realized, the measured force value data of the return spring is closer to the force value in the product installation state, the measurement is more accurate, meanwhile, the concentric structure is adopted, the influence of the interference of the spindle of the torsion spring machine on the measurement result caused by the test of the traditional torsion spring machine is eliminated, the accuracy of the measurement result is also improved, the guiding significance on parking return is better, and the service performance of the brake is improved.
Description
Technical Field
The invention relates to the technical field of brake equipment detection, in particular to a return spring measuring device.
Background
As a main device for braking an automobile, a rear brake is widely used in the field of braking of automobiles, and thus, improvement of the service performance of the rear brake is an important point of current research.
The return spring force of the rear brake caliper mainly acts on the parking return, so that accurate and reasonable measurement of the spring force of the return spring is a key to improving the performance of the rear brake. At present, most manufacturers of automobile parts use special torsion spring machines to measure the spring force of a return spring, the force value measurement result of the special torsion spring machines is directly related to the selected size of a measuring mandrel, and the measurement result of the spring force often has certain difference with the force in an actual use state, so that the guidance on parking return is not very direct, and the aim of improving the performance of a rear brake is difficult to achieve.
Disclosure of Invention
The invention aims to solve the above problems in the prior art, and aims to provide a measuring device for a return spring, which is used for arranging a measuring tool on a small-sized pressure testing machine, and the structure of the measuring tool simulates the installation state of a brake caliper return spring, so that the measured force value data of the return spring is closer to the force value in the product installation state, and simultaneously, the rotating circle center of a measuring force arm of the return spring and a parking bracket for fixing the return spring are concentrically arranged and are arranged on the same rotating shaft, thereby eliminating the influence of the spindle interference of a torsion spring machine caused by the traditional torsion spring machine test on the measuring result, and the measuring result is more accurate.
The specific technical scheme is as follows:
a return spring measuring device having the features comprising: the pressure testing machine is provided with a test bench and a pressure measuring head arranged above the test bench, the pressure testing machine is arranged on the test bench and is arranged below the pressure measuring head, wherein,
the measuring tool comprises a supporting seat, a parking support, a turntable, a parking pull rod and a measuring force arm, wherein the supporting seat is arranged on a test table, the upper portion of the supporting seat is vertically arranged, the parking support is fixed on the side wall of the upper portion of the supporting seat, a rotating shaft is arranged in the middle of the parking support, meanwhile, the parking pull rod and the measuring force arm are respectively arranged on two sides of the turntable, the parking pull rod and the measuring force arm are arranged on the same straight line and are symmetrically distributed, meanwhile, the turntable is provided with a first measuring fixing block, and a second measuring fixing block is arranged on the turntable.
The return spring measuring device comprises a rotary table, a parking pull rod and a measuring force arm, wherein the rotary table, the parking pull rod and the measuring force arm are integrally arranged, and in an initial state, the parking pull rod and the measuring force arm are horizontally arranged.
The return spring measuring device is characterized in that a gap is arranged between the parking support and the turntable, and the first measuring fixing block is arranged in the gap between the parking support and the turntable.
The return spring measuring device is characterized in that a measuring hole I is formed in the measuring fixed block I.
The second measuring fixed block is arranged on the edge of the rotary table, protrudes out of the rotary table in the radial direction of the rotary table, and is provided with a second measuring hole.
In the above-mentioned return spring measuring device, in the initial state, the line between the first measuring hole and the axis of the rotating shaft and the line between the second measuring hole and the axis of the rotating shaft are arranged at an included angle in the vertical direction.
According to the return spring measuring device, the first measuring fixing blocks are arranged on the parking support, and the first measuring fixing blocks are symmetrically arranged relative to the straight line where the parking pull rod is located.
The return spring measuring device is characterized in that the turntable is provided with two measuring fixing blocks II, and the two measuring fixing blocks II are symmetrically arranged relative to the straight line where the parking pull rod is located.
The technical scheme has the positive effects that: the pressure testing machine is provided with the measuring tool, the measuring tool comprises a parking support and a parking pull rod arranged on the turntable, one end of a return spring is fixed on the parking support, the other end of the return spring is fixed on the parking pull rod, and the installation state of the brake caliper return spring is simulated, so that the measuring force value data of the return spring is more close to the force value under the product installation state, the measuring is more accurate, meanwhile, the parking support and the turntable are concentrically arranged, and the parking support and the turntable are connected through the same rotating shaft, so that the influence of the interference of a mandrel of the torsion spring machine caused by the traditional torsion spring machine on the measuring result is effectively avoided, the accuracy of the measuring result is also improved, the parking return structural design is reasonably guided, and the service performance of a rear brake is improved.
Drawings
FIG. 1 is a block diagram of an embodiment of a return spring measuring device of the present invention;
FIG. 2 is a view angle block diagram of a measuring tool according to a preferred embodiment of the present invention;
fig. 3 is an enlarged view of a portion a in fig. 1.
In the accompanying drawings: 1. a pressure testing machine; 11. a test bench; 12. measuring a pressure head; 2. measuring a tool; 21. a support base; 22. a parking bracket; 23. a turntable; 24. a parking pull rod; 25. measuring a moment arm; 26. a rotating shaft; 27. measuring a first fixed block; 28. measuring a second fixed block; 271. measuring a first hole; 281. measuring a second hole; 3. and a return spring.
Detailed Description
In order to make the technical means, the creation features, the achievement of the purposes and the effects of the present invention easy to understand, the following embodiments specifically describe the technical solution provided by the present invention with reference to fig. 1 to 3, but the following disclosure is not limited to the present invention.
FIG. 1 is a block diagram of an embodiment of a return spring measuring device of the present invention; FIG. 2 is a view angle block diagram of a measuring tool according to a preferred embodiment of the present invention; fig. 3 is an enlarged view of a portion a in fig. 1. As shown in fig. 1, 2 and 3, the return spring measuring device provided in this embodiment includes: the pressure testing machine 1 and the measurement frock 2, wherein, the pressure testing machine 1 includes testboard 11 and pressure measurement head 12, and pressure measurement head 12 is located the top of testboard 11, installs on testboard 11 and is located pressure measurement head 12 below and is provided with measurement frock 2, and pressure measurement head 12 through the pressure testing machine 1 is exerted pressure to measurement frock 2 to measure the spring force of return spring 3 on the measurement frock 2, simple structure, convenient to use.
Specifically, the measurement tool 2 comprises a supporting seat 21, a parking support 22, a turntable 23, a parking pull rod 24 and a measurement force arm 25, wherein the supporting seat 21 is arranged on the test bench 11, the upper part of the supporting seat 21 is vertically arranged, the parking support 22 is fixed on the side wall of the upper part of the supporting seat 21, a rotating shaft 26 is arranged in the middle of the parking support 22, the rotating shaft 26 is arranged in a direction far away from the parking support 22, the rotating shaft 26 is horizontally arranged, meanwhile, the parking pull rod 24 and the measurement force arm 25 are respectively arranged on two sides of the turntable 23, the turntable 23 is sleeved on the rotating shaft 26 and fixed through threaded fasteners, the later maintenance and the maintenance are facilitated, the parking pull rod 24 and the measurement force arm 25 are arranged on the same straight line and are symmetrically distributed, and preferably, in an initial state, the parking pull rod 24 and the measuring force arm 25 are horizontally arranged, so that the pressure measuring head 12 can be opposite to a measuring point on the measuring force arm 25, the measuring accuracy is improved, the measuring force arm 25, the parking pull rod 24 and the rotary table 23 are integrally arranged, the manufacturing is more convenient, meanwhile, the symmetrical centers of the parking pull rod 24 and the measuring force arm 25 and the rotary shaft 26 are arranged concentrically on the rotary table 23, the first measuring fixing block 27 is arranged on the parking support 22, the second measuring fixing block 28 is arranged on the rotary table 23, one end of the return spring 3 is fixed on the first measuring fixing block 27, and the other end is fixed on the second measuring fixing block 28, so that the influence of the interference of a torsional spring machine core shaft caused by the traditional torsional spring machine test on a measuring result is eliminated, and the accuracy of the measuring result is improved.
Specifically, after the turntable 23 is sleeved on the rotating shaft 26, a gap is provided between the turntable 23 and the parking support 22, the first measurement fixing block 27 is disposed in the gap formed between the turntable 23 and the parking support 22, and the first measurement fixing block 27 is provided with a first measurement hole 271, preferably, the first measurement hole 271 is provided along the radial direction of the turntable 23. Meanwhile, a second measurement fixing block 28 is disposed on the edge of the turntable 23, the second measurement fixing block 28 protrudes from the turntable 23 along the radial direction of the turntable 23, and a second measurement hole 281 is formed in the second measurement fixing block 28, preferably, the second measurement hole 281 is formed along the axial direction of the turntable 23. And in the initial state, the line between the first 271 and the axis of the rotating shaft 23 and the line between the second 281 and the axis of the rotating shaft 23 are arranged at an included angle in the vertical direction, so that the first 271 and one end of the return spring 3 are matched, the second 281 and the other end of the return spring 3 are matched, the fixing of the return spring 3 is realized, the measurement of the return spring 3 is facilitated, the installation state of the brake caliper return spring 3 can be simulated, the measured force value data of the return spring 3 is closer to the force value in the product installation state, the measurement is more accurate, and the parking return is more instructive.
As a preferred embodiment, the parking bracket 22 is provided with two measurement fixing blocks 27, and the two measurement fixing blocks 27 are symmetrically arranged about a straight line where the parking pull rod 24 is located; two measurement fixing blocks II 28 are arranged on the turntable 23, and the two measurement fixing blocks II 28 are symmetrically arranged about the straight line where the parking pull rod 24 is located, so that the two return springs 3 can be fixed on one measurement tool 2 at the same time, the spring force during the installation of the two return springs 3 can be measured at the same time, and the measurement adaptability is higher.
The return spring measuring device provided by the embodiment comprises a pressure testing machine 1 and a measuring tool 2 arranged on the pressure testing machine 1, wherein a parking bracket 22 with a rotating shaft 26 and a rotating disc 23 sleeved on the rotating shaft 26 are arranged on the measuring tool 2, meanwhile, a parking pull rod 24 and a measuring force arm 25 are symmetrically arranged on the rotating disc 23, the rotating shaft 26 and the rotating disc 23 are concentrically arranged, a first measuring fixing block 27 is arranged on the parking pull rod 24, and a second measuring fixing block 28 is arranged on the rotating disc 23; through setting up measurement frock 2, realized the simulation of return spring 3 in actual installation state for the measured force value data of return spring 3 is more close the force value under the product installation state, and it is more accurate to measure, simultaneously, adopts concentric structure to set up, has eliminated the influence of torsional spring machine dabber interference to measuring result that adopts traditional torsional spring machine test to arouse, has likewise improved measuring result's accuracy, has more guiding meaning to the parking return, improves the performance of stopper.
The foregoing is merely illustrative of the preferred embodiments of the present invention and is not intended to limit the embodiments and scope of the present invention, and it should be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present invention, and are intended to be included in the scope of the present invention.
Claims (6)
1. A return spring measuring device, comprising: the pressure testing machine is provided with a test bench and a pressure measuring head arranged above the test bench, the pressure measuring head is arranged on the test bench and arranged below the pressure measuring head, wherein,
the measuring tool comprises a supporting seat, a parking support, a turntable, a parking pull rod and a measuring force arm, wherein the supporting seat is arranged on the test bench, the upper part of the supporting seat is vertically arranged, the parking support is fixed on the side wall of the upper part of the supporting seat, a rotating shaft is arranged in the middle of the parking support, meanwhile, the parking pull rod and the measuring force arm are respectively arranged on two sides of the turntable, the parking pull rod and the measuring force arm are arranged on the same straight line and are symmetrically distributed, meanwhile, the turntable is provided with a first measuring fixing block and a second measuring fixing block, and the center of symmetry of the parking pull rod and the measuring force arm is concentric with the rotating shaft;
the turntable, the parking pull rod and the measuring force arm are integrally arranged, and in an initial state, the parking pull rod and the measuring force arm are horizontally arranged;
and a gap is formed between the parking support and the turntable, and the first measurement fixing block is arranged in the gap between the parking support and the turntable.
2. The return spring measuring device according to claim 1, wherein the first measuring fixing block is provided with a first measuring hole.
3. The return spring measuring device according to claim 2, wherein the second measuring fixing block is disposed on an edge of the turntable, the second measuring fixing block protrudes from the turntable in a radial direction of the turntable, and a second measuring hole is formed in the second measuring fixing block.
4. A return spring measuring device according to claim 3, wherein in the initial state, a line connecting the first measuring hole to the axis of the rotary shaft and a line connecting the second measuring hole to the axis of the rotary shaft are arranged at an angle in the vertical direction.
5. The return spring measuring device according to claim 1, wherein two measuring fixing blocks I are arranged on the parking support, and the two measuring fixing blocks I are symmetrically arranged with respect to a straight line where the parking pull rod is located.
6. The return spring measuring device according to claim 1, wherein two measuring fixing blocks II are arranged on the turntable, and the two measuring fixing blocks II are symmetrically arranged with respect to a straight line where the parking pull rod is located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810074344.5A CN107991043B (en) | 2018-01-25 | 2018-01-25 | Return spring measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810074344.5A CN107991043B (en) | 2018-01-25 | 2018-01-25 | Return spring measuring device |
Publications (2)
| Publication Number | Publication Date |
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| CN107991043A CN107991043A (en) | 2018-05-04 |
| CN107991043B true CN107991043B (en) | 2023-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810074344.5A Active CN107991043B (en) | 2018-01-25 | 2018-01-25 | Return spring measuring device |
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| CN (1) | CN107991043B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109883630A (en) * | 2019-03-13 | 2019-06-14 | 北京慧天丰石油机械有限公司 | Six fast rotational viscometer torsional spring dynamometers |
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2018
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| JP2009025186A (en) * | 2007-07-20 | 2009-02-05 | Fuji World:Kk | Machine for discriminating automatic measurement inspection component, such as spring |
| CN202024843U (en) * | 2011-02-24 | 2011-11-02 | 西北工业大学 | Device for measuring torque of torsion spring |
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| CN203203731U (en) * | 2012-12-18 | 2013-09-18 | 天津市百利电气有限公司 | Jig capable of measuring torque of cylindrical helical torsion spring |
| CN203164070U (en) * | 2013-02-26 | 2013-08-28 | 三实电器(漳州)有限公司 | Novel torsion spring test board |
| CN103674529A (en) * | 2013-12-05 | 2014-03-26 | 苏州奔腾塑业有限公司 | Device for testing service life of torsional spring |
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| CN104316402A (en) * | 2014-10-21 | 2015-01-28 | 福建兵工装备有限公司 | Simple apparatus for testing tensile strength of double torsional springs |
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| CN205843947U (en) * | 2016-07-22 | 2016-12-28 | 重庆工业职业技术学院 | Vertical torsion spring test equipment |
| CN206430893U (en) * | 2016-12-12 | 2017-08-22 | 李正华 | Vertical spring torsion testing machine |
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| CN107991043A (en) | 2018-05-04 |
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