CN203479485U - Device for testing stiffness of flat spring in high-temperature environment - Google Patents
Device for testing stiffness of flat spring in high-temperature environment Download PDFInfo
- Publication number
- CN203479485U CN203479485U CN201320374081.2U CN201320374081U CN203479485U CN 203479485 U CN203479485 U CN 203479485U CN 201320374081 U CN201320374081 U CN 201320374081U CN 203479485 U CN203479485 U CN 203479485U
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- sliding shoe
- flat spring
- micrometer caliper
- fixedly connected
- worktable
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Abstract
The utility model discloses a device for testing the stiffness of a flat spring in a high-temperature environment. At present, most of test methods are achieved through improving a spiral-spring high-temperature testing device according to the structure and shape of the flat spring, are poor in testing precision, are tedious in process, and are poor in universality. The device comprises: a clamping apparatus which is used for clamping the flat spring; a force testing apparatus which is used for testing a bearing load of the flat spring; a lifting apparatus which is used for adjusting the position of the force testing apparatus; a deflection measurement apparatus which is used for measuring the deflection of the flat spring; an adjusting device which is used for adjusting the position of a force point of the flat spring; and an electromagnetic induction heating apparatus which is used for simulating the working temperature of the flat spring. The device can achieve the continuous measurement of various deflections and force points, is convenient to operate, and is reliable in test.
Description
Technical field
The utility model belongs to flat spring device for testing stiffness field, the device of test pieces spring rate under especially a kind of hot environment.
Background technology
Thereby flat spring is the effect that utilizes the crooked deformation force performance spring producing of sheet metal, have simple in structure, easy to process, the feature such as little that takes up room, in electric power contact device, instrument and meter device, Machinery Control System, range of application is large, a considerable number of, status is important.The rigidity of flat spring refers to and produces the required load of unit deformation, is to evaluate one of most important index of flat spring serviceability, the parameter that while being also design and selection flat spring, emphasis is considered.Temperature is one of principal element affecting flat spring rigidity, rising along with temperature, the elastic modulus of flat spring material and flat spring rigidity decline gradually, when rigidity is less than a certain value, under identical deflection, can not provide enough large elastic deformation force, will have influence on the reliability and stability of whole system work, cause the generation of the situations such as device damage, thrashing, bring inconvenience to production and life.The rigidity of flat spring in hot environment is the important indicator of the main failure forms such as its opposing high-temperature stress relaxation of evaluation and moulding creep, the reasonable rigidity of correct test pieces spring in hot environment, for the optimal design of flat spring, to improve its reliability level at high temperature of its working environment, accurate evaluation and raising be highly significant.
At present, also there is not a kind of device of in hot environment, flat spring rigidity being tested that is specifically designed to.Mostly current method of testing is to carry out after to the transformation of volute spring high-temperature test device according to the structure of flat spring and shape, this method of testing measuring accuracy is poor, process is loaded down with trivial details, versatility is poor, the actual flat spring category of using is more, need to be for the clamping device of each design specialized, this has increased undoubtedly the complexity of testing, has reduced testing efficiency.
Summary of the invention
The utility model, for the deficiencies in the prior art, has proposed the device of test pieces spring rate under a kind of hot environment.
A device for test pieces spring rate under hot environment, mainly comprises clamping device for clamping flat spring, for the device for measuring force of test pieces spring bearing load, for regulating the jacking gear of device for measuring force position, for measuring the deflection measuring apparatus of flat spring deflection, for the regulating device of adjustment sheet spring stress position of action point with for simulating the electromagnetic induction heater of flat spring working temperature.
Described clamping device comprises worktable, cover plate, and described cover plate is fixed by screws in the upper surface of worktable; The metal material that described worktable is formed in one is made,
Described device for measuring force comprises ceramic bar, fixed cover, dynamometer and installing plate, and one end of described ceramic bar is connected with the test lead of dynamometer by fixed cover, and coaxially arranges, and described dynamometer installing plate is fixedly connected with the sidewall of dynamometer,
Described deflection measuring apparatus comprises the first micrometer caliper and contiguous block, and the measuring head end of the first described micrometer caliper is fixedly connected with contiguous block, and contiguous block is fixedly connected with dynamometer installing plate;
Described jacking gear comprises lifting table, the first fixed block, and the main body of the first micrometer caliper is connected with lifting table by the first fixed block, and lifting table can drive deflection measuring apparatus and device for measuring force to pump; Described lifting table is fixed on base;
Described regulating device comprises the second fixed block, the second micrometer caliper, the first sliding shoe, triple helical mircrometer gauge, the 3rd fixed block and the second sliding shoe; The second described micrometer caliper is horizontally fixed on base by the second fixed block, the measuring head of the second micrometer caliper is fixedly connected with the first sliding shoe, the first described sliding shoe is arranged on base by slide rail, by regulating the second micrometer caliper can drive the first sliding shoe along continuous straight runs to horizontally slip; Described triple helical mircrometer gauge is horizontally fixed on the first sliding shoe by the 3rd fixed block, the second micrometer caliper is vertical with triple helical mircrometer gauge, the measuring head of triple helical mircrometer gauge is fixedly connected with the second sliding shoe, the second sliding shoe is arranged on the top of the first sliding shoe and both are slidably connected, by regulating triple helical mircrometer gauge to slide before and after driving the second sliding shoe along continuous straight runs;
Described heating arrangement comprises heating arrangement erecting bed, lower heat insulation sheet asbestos, upper heat insulation sheet asbestos, ceramic wafer, solenoid and temperature sensor; Between the bottom surface of described heating arrangement erecting bed and the second sliding shoe, be provided with lower heat insulation sheet asbestos, and three is fixedly connected with; Between the described upper bottom surface of heating arrangement erecting bed and the bottom surface of ceramic wafer, be provided with heat insulation sheet asbestos, three is fixedly connected with; The upper bottom surface of ceramic wafer and the bottom surface of worktable are affixed; Described solenoid is arranged on worktable inside, on worktable lateral wall, is provided with temperature sensor;
The utility model beneficial effect is compared with prior art:
1, be specifically designed to the rigidity of test pieces spring in normal temperature and hot environment, after fixing flat spring, do not need repeatedly flat spring to be carried out to clamping, can realize the continuous coverage to different amounts of deflection, different stress action spots, easy to operate, test is reliable.Adopt in addition digital display type dynamometer, the error that can avoid artificial reading to cause, measuring accuracy is high.Need to not be by means of other devices in the situation that, this device can be simulated the rigidity of flat spring in temperature environment, thereby evaluates accurately and reliably the mechanical property of flat spring.
2, can be used for measuring the flat spring of difformity, structure and mounting means, only need be fixed with upper cover plate, not need to design in addition clamping device, can meet the testing requirement of most of flat springs, simple to operate, measurement facilitates, highly versatile.
3, for this thin-wall construction of flat spring, under certain external load function, can there is moderate finite deformation, not only can cause that flat spring has larger deformation displacement at the action direction along power, also can cause flat spring in the plane perpendicular to forced direction, to have larger deformation displacement, thereby cause the position of test point position deviation actual needs test, cause test error.For this device, can the reference test bar of dynamometer accurately can be navigated to the position that will measure by regulating realizing the Mobile Slide of two mutually perpendicular direction motions, avoided the inaccurate problem of test result.In addition, in the situation that not needing flat spring to carry out repeatedly clamping, can measure flat spring any rigidity of stress point in normal temperature and hot environment, it is time saving and energy saving that behaviour does, mechanical property that can concentrated expression flat spring.
4, in the situation that keep micrometer caliper registration on temperature that electromagnetic induction heater sets and flat spring deflection measuring apparatus to be worth constant, record at regular intervals the flat spring elastic force that device for measuring force records, the situation of change by analysing elastic power can be used to study the stress relaxation phenomenon of flat spring in temperature environment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is stereographic map of the present utility model.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model is described in further detail.Should be appreciated that specific embodiment described herein is only for explaining the utility model, and be not used in restriction the utility model.
As shown in Figure 1 and Figure 2, the utility model provides the device of test pieces spring rate under a kind of hot environment, mainly comprises clamping device for clamping flat spring, for the device for measuring force of test pieces spring bearing load, for regulating the jacking gear of device for measuring force position, for measuring the deflection measuring apparatus of flat spring deflection, for the regulating device of adjustment sheet spring stress position of action point with for simulating the electromagnetic induction heater of flat spring working temperature.
Described clamping device comprises worktable 7, cover plate 10, and described cover plate 10 is fixed by screws in the upper surface of worktable 7; The metal material that described worktable 7 is formed in one is made,
Described device for measuring force comprises ceramic bar 12, fixed cover 13, dynamometer 15 and installing plate 16, one end of described ceramic bar 12 is connected with the test lead of dynamometer 15 by fixed cover 13, and coaxially arrange, described dynamometer installing plate 16 is fixedly connected with the sidewall of dynamometer
Described deflection measuring apparatus comprises the first micrometer caliper 14 and contiguous block 20, and the measuring head end of the first described micrometer caliper 14 is fixedly connected with contiguous block 20, and contiguous block 20 is fixedly connected with dynamometer installing plate 16;
Described jacking gear comprises that the main body of lifting table 18, the first fixed block 19, the first micrometer calipers 14 is connected with lifting table 18 by the first fixed block 19, and lifting table 18 can drive deflection measuring apparatus 17 and device for measuring force to pump; Described lifting table is fixed on base 1;
Described regulating device comprises the second fixed block 21, the second micrometer caliper 2, the first sliding shoe 22, triple helical mircrometer gauge 23, the 3rd fixed block 24 and the second sliding shoe 25; The second described micrometer caliper 2 is horizontally fixed on base 1 by the second fixed block 21, the measuring head of the second micrometer caliper 2 is fixedly connected with the first sliding shoe 22, the first described sliding shoe 22 is arranged on base by slide rail, by regulating the second micrometer caliper 2 can drive the first sliding shoe 22 along continuous straight runs to horizontally slip; Described triple helical mircrometer gauge 23 is horizontally fixed on the first sliding shoe 22 by the 3rd fixed block 24, the second micrometer caliper 2 is vertical with triple helical mircrometer gauge 23, the measuring head of triple helical mircrometer gauge 23 is fixedly connected with the second sliding shoe 25, the second sliding shoe 25 is arranged on the top of the first sliding shoe 22 and both are slidably connected, by regulating triple helical mircrometer gauge 23 to slide before and after driving the second sliding shoe 25 along continuous straight runs;
Described heating arrangement comprises heating arrangement erecting bed 4, lower heat insulation sheet asbestos 3, upper heat insulation sheet asbestos 5, ceramic wafer 6, solenoid 8 and temperature sensor 9; Between the bottom surface of described heating arrangement erecting bed 4 and the second sliding shoe 25, be provided with lower heat insulation sheet asbestos 3, and three is fixedly connected with; Between the upper bottom surface of described heating arrangement erecting bed 4 and the bottom surface of ceramic wafer 6, be provided with heat insulation sheet asbestos 5, three is fixedly connected with; The bottom surface of the upper bottom surface of ceramic wafer 6 and worktable 7 is affixed; Described solenoid 8 is arranged on worktable 7 inside, on worktable 7 lateral walls, is provided with temperature sensor 9;
Under a kind of hot environment described in the utility model, the specific works flow process of the device of test pieces spring rate is:
1, rotate the handwheel of lifting table 18, regulate dynamometer position, for clamping flat spring 11 reserves sufficient space.
2, regulate the first micrometer caliper 14 on deflection measuring apparatus, make its reading for " 0 ".
3, pull down the cover plate on worktable, tested flat spring 11 is positioned over to work edge of table, according to actual installation site, on flat spring 11, press cover plate and fix.
4, be rotatably installed in regulate on platform, orthogonal the second micrometer caliper 2 and triple helical mircrometer gauge 23, the position of adjustment sheet spring until actual stress action spot be positioned at dynamometer ceramic bar 12 under.
5, as requested, set the heating-up temperature on electromagnetic induction heating control panel, control electromagnetic induction heating coil worktable is heated to assigned temperature.
5, treat that operating temperature rises to set temperature, the handwheel that rotates lifting table makes the ceramic bar of dynamometer contact tested flat spring, and the numeral that now dynamometer shows is " 0 ".
6, rotate the first micrometer caliper 14 of deflection measuring apparatus, flat spring 11 is applied to the deflection of certain value, record this deflection, and operate the elastic force value that dynamometer obtains test and be transferred to computer, so just can obtain one group of amount of deflection and elastic force data.
7, continue to apply the deflection of certain value, can obtain second group of deflection and elastic force data, test several times, is input to resulting every group of data in relevant data processing software so repeatedly, can obtain the rigidity of flat spring.In test process, because the deflection of flat spring causes more greatly the position of stress point to be offset, can be by the adjusting to mutual vertically arranged the second micrometer caliper, triple helical mircrometer gauge, in the situation that need not repeatedly removing and installing flat spring, can make the stress point position of flat spring remain unchanged.
The above embodiment, is described in more detail the utility model.Institute is understood that; the foregoing is only preferred embodiments of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle; any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (1)
1. the device of test pieces spring rate under hot environment, comprises clamping device for clamping flat spring, for the device for measuring force of test pieces spring bearing load, for regulating the jacking gear of device for measuring force position, for measuring the deflection measuring apparatus of flat spring deflection, for the regulating device of adjustment sheet spring stress position of action point with for simulating the electromagnetic induction heater of flat spring working temperature;
It is characterized in that: described clamping device comprises worktable, cover plate, described cover plate is fixed by screws in the upper surface of worktable; The metal material that described worktable is formed in one is made;
Described device for measuring force comprises ceramic bar, fixed cover, dynamometer and installing plate, and one end of described ceramic bar is connected with the test lead of dynamometer by fixed cover, and coaxially arranges, and dynamometer installing plate is fixedly connected with the sidewall of dynamometer;
Described deflection measuring apparatus comprises the first micrometer caliper and contiguous block, and the measuring head end of the first described micrometer caliper is fixedly connected with contiguous block, and contiguous block is fixedly connected with dynamometer installing plate;
Described jacking gear comprises lifting table, the first fixed block, and the main body of the first micrometer caliper is connected with lifting table by the first fixed block, and lifting table can drive deflection measuring apparatus and device for measuring force to pump; Described lifting table is fixed on base;
Described regulating device comprises the second fixed block, the second micrometer caliper, the first sliding shoe, triple helical mircrometer gauge, the 3rd fixed block and the second sliding shoe; The second described micrometer caliper is horizontally fixed on base by the second fixed block, the measuring head of the second micrometer caliper is fixedly connected with the first sliding shoe, the first described sliding shoe is arranged on base by slide rail, by regulating the second micrometer caliper can drive the first sliding shoe along continuous straight runs to horizontally slip; Described triple helical mircrometer gauge is horizontally fixed on the first sliding shoe by the 3rd fixed block, the second micrometer caliper is vertical with triple helical mircrometer gauge, the measuring head of triple helical mircrometer gauge is fixedly connected with the second sliding shoe, the second sliding shoe is arranged on the top of the first sliding shoe and both are slidably connected, by regulating triple helical mircrometer gauge to slide before and after driving the second sliding shoe along continuous straight runs;
Described heating arrangement comprises heating arrangement erecting bed, lower heat insulation sheet asbestos, upper heat insulation sheet asbestos, ceramic wafer, solenoid and temperature sensor; Between the bottom surface of described heating arrangement erecting bed and the second sliding shoe, be provided with lower heat insulation sheet asbestos, and three is fixedly connected with; Between the described upper bottom surface of heating arrangement erecting bed and the bottom surface of ceramic wafer, be provided with heat insulation sheet asbestos, three is fixedly connected with; The upper bottom surface of ceramic wafer and the bottom surface of worktable are affixed; Described solenoid is arranged on worktable inside, on worktable lateral wall, is provided with temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320374081.2U CN203479485U (en) | 2013-06-26 | 2013-06-26 | Device for testing stiffness of flat spring in high-temperature environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320374081.2U CN203479485U (en) | 2013-06-26 | 2013-06-26 | Device for testing stiffness of flat spring in high-temperature environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203479485U true CN203479485U (en) | 2014-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320374081.2U Withdrawn - After Issue CN203479485U (en) | 2013-06-26 | 2013-06-26 | Device for testing stiffness of flat spring in high-temperature environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203479485U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364182B (en) * | 2013-06-26 | 2016-06-08 | 浙江理工大学 | The device of flat spring rigidity is tested under a kind of hot environment |
| CN107045565A (en) * | 2017-01-12 | 2017-08-15 | 王炳超 | The design method of the maximum spacing amount of deflection of high intensity two-stage progressive rate leaf spring |
-
2013
- 2013-06-26 CN CN201320374081.2U patent/CN203479485U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364182B (en) * | 2013-06-26 | 2016-06-08 | 浙江理工大学 | The device of flat spring rigidity is tested under a kind of hot environment |
| CN107045565A (en) * | 2017-01-12 | 2017-08-15 | 王炳超 | The design method of the maximum spacing amount of deflection of high intensity two-stage progressive rate leaf spring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140312 Effective date of abandoning: 20160608 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140312 Effective date of abandoning: 20160608 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |