CN104019972A - Measuring device for nonlinear characteristic of plate spring - Google Patents
Measuring device for nonlinear characteristic of plate spring Download PDFInfo
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- CN104019972A CN104019972A CN201410249730.5A CN201410249730A CN104019972A CN 104019972 A CN104019972 A CN 104019972A CN 201410249730 A CN201410249730 A CN 201410249730A CN 104019972 A CN104019972 A CN 104019972A
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- leaf spring
- mount pad
- plate spring
- nonlinear characteristic
- supporting seat
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
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Abstract
The invention belongs to the technical field of plate spring elastic force detection, and relates to a measuring device for the nonlinear characteristic of a plate spring. The measuring device comprises a plate spring mounting seat used for containing the plate spring, a force application device and a sensor mounting seat, and the force application device is used for applying thrust to the plate spring mounting seat to enable the plate spring to be deformed. The force application device comprises a guide mechanism and a drive mechanism, the sensor mounting seat is connected with a drive mechanism supporting seat through the guide mechanism, the plate spring mounting seat is arranged on the guide mechanism between the sensor mounting seat and the drive mechanism supporting seat and moves along the guide mechanism, the drive mechanism is in contact with the plate spring mounting seat, the plate spring mounting seat is driven to move along the guide mechanism to be in contact with a sensor, and the sensor is connected with an external displayer so as to display stress borne by the plate spring. Pressure needed by the plate spring under certain deformation can be detected, the deformation of the plate spring under certain force can be measured, so that the nonlinear characteristic of the plate spring is studied, and reference data are provided for improving the manufacturing technology or structure of the spring.
Description
Technical field
The invention belongs to elasticity of plate spring detection technique field, particularly relate to a kind of measurement mechanism of leaf spring nonlinear characteristic, be used for indirectly determining certain leaf spring nonlinear relationship between stressed and distortion.
Background technology
Leaf spring is arranged on automobile as a kind of buffer shock-absorbing element, need to its model specification by rule of thumb or experiment choose.At present, great majority are measured the device of shock-absorbing spring mainly for cylindrical spring, although automaticity is higher, cost is high, takes up space larger, safeguard inconvenient.And general leaf spring measurement mechanism is only used for measuring the leaf spring stressed size of institute or whether check leaf spring is qualified.
Summary of the invention
Technical matters for above-mentioned existence, the invention provides a kind of measurement mechanism of leaf spring nonlinear characteristic, it is simple in structure, can detect leaf spring required pressure size under certain deflection, can measure again the deflection of this leaf spring under certain power, to the non-linear behaviour of leaf spring is studied more easily.
The object of the invention is to be achieved through the following technical solutions:
The present invention includes place leaf spring leaf spring mount pad and for to leaf spring mount pad applied thrust so that leaf spring produces force application apparatus and the sensor installation seat of distortion, described force application apparatus comprises guiding mechanism and driving mechanism, sensor installation seat is connected by guiding mechanism with driving mechanism supporting seat, leaf spring mount pad is placed on the guiding mechanism between sensor installation seat and driving mechanism supporting seat, along guiding mechanism, move, driving mechanism contacts with leaf spring mount pad, drive leaf spring mount pad to move along guiding mechanism, with feeler, sensor is connected with external display the size that shows that leaf spring is stressed.
Further, described leaf spring mount pad is the fluted body structure that does not wait on both sides, on two trough rims of groove, all have gathering sill, when leaf spring is installed, position according to the length adjustment screw of leaf spring in gathering sill, the width of gathering sill is slightly larger than screw diameter, and leaf spring mount pad bottom land two ends are respectively equipped with the pilot hole with guide pole clearance fit.
Further, the bottom land surface of described leaf spring mount pad is provided with a backing plate, contacts with driving mechanism.
Further, described backing plate is vulcanie pad or steel plate.
Further, described guiding mechanism comprises two symmetrically arranged guide poles, and guide pole two ends are threaded, and is fixed on driving mechanism supporting seat and sensor installation seat respectively with nut, and center section is with scale, in order to measure the distortion size of leaf spring.
Further, described driving mechanism comprises supporting seat, ball screw assembly, and handle, and leading screw one end is connected with handle, and the other end is with circular arc chamfering, one end with circular arc chamfering contacts with the backing plate of leaf spring mount pad, and the nut being set with on leading screw is fixed on supporting seat.
Further, two pilot holes of described sensor installation seat and driving mechanism supporting seat equate with the pilot hole spacing of leaf spring mount pad.
Further, below described supporting seat and sensor installation seat, be respectively equipped with two rubber feet.
Further, described sensor is pressure transducer.
Beneficial effect of the present invention is:
1. the present invention can detect leaf spring required pressure size under certain deflection, can measure again the deflection of this leaf spring under certain power, to the non-linear behaviour of leaf spring is studied more easily.
2. by the present invention, measure the stressed and distortion of leaf spring institute, to provide reference data to the improvement of the manufacturing process of spring or structure, in addition also for laboratory and numerical simulation provide correlation data.
3. the present invention's technology or experience that does not relate to operator simple in structure, takes up space little, easy to operate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the left view structural representation of Fig. 1.
The leaf spring force-displacement curve figure of Fig. 3 for adopting the present invention to measure.
In figure: 1. sensor installation seat, 2. guide pole, 3. leaf spring mount pad, 4. supporting seat, 5. ball wire bar pair, 6. backing plate, 7. nut, 8. screw, 9. gathering sill, 10. leaf spring, 11. sensors, 12. legs, 13. handles.
Embodiment
Below by embodiment and accompanying drawing, the invention will be further described.
Embodiment: as Fig. 1, shown in Fig. 2, the present invention includes place leaf spring 10 leaf spring mount pad 3 and for to leaf spring mount pad 3 applied thrusts so that leaf spring 10 produces force application apparatus and the sensor installation seat 1 of distortion, described force application apparatus comprises guiding mechanism and driving mechanism, sensor installation seat 1 is connected by guiding mechanism with driving mechanism supporting seat 4, leaf spring mount pad 3 is placed on the guiding mechanism between sensor installation seat 1 and driving mechanism supporting seat 4, along guiding mechanism, move, driving mechanism contacts with leaf spring mount pad 3, drive leaf spring mount pad 3 to move along guiding mechanism, with feeler 11.Described sensor 11 is pressure transducer, is connected, with the size that shows that leaf spring 10 is stressed with external display.Wherein display can be energy transmission device or digital wash, completes demonstration change and send operation.
As shown in Figure 2, described leaf spring mount pad 3 is fluted body structures that does not wait on both sides, the narrow lower hem width in top, that is: the side width of placement leaf spring is greater than relative edge's width, the effect of play support, placing leaf spring, and top is narrow, be convenient on the one hand install another convenient material of saving.On two trough rims of groove, all have gathering sill 9, when leaf spring 10 is installed, position according to the length adjustment screw 8 of leaf spring 10 in gathering sill 9, the width of gathering sill 9 is slightly larger than the diameter of screw 8, and the groove bottom land two ends of leaf spring mount pad 3 are respectively equipped with the pilot hole with guide pole 2 clearance fit.
The bottom land surface of described leaf spring mount pad 3 is provided with a backing plate 6, and described backing plate 6 is vulcanie pad or steel plate, contacts with driving mechanism; The effect of backing plate 6 is: prevent metal and metal direct friction, prevent on the one hand 3 wearing and tearing of leaf spring mount pad, abate the noise on the other hand.Described driving mechanism comprises supporting seat 4, ball screw assembly, 5 and handle 13, leading screw one end is connected with handle 13, the other end, with circular arc chamfering, contacts with one end of circular arc chamfering and the backing plate 6 of leaf spring mount pad 3, and the nut being set with on leading screw is fixed on supporting seat 4.
Described guiding mechanism comprises two symmetrically arranged guide poles 2, and guide pole 2 two ends are threaded, and is fixed on driving mechanism supporting seat 4 and sensor installation seat 1 respectively with nut 7, and center section, with scale, is read the distortion size of leaf spring 10.
Two pilot holes of described sensor installation seat 1 and driving mechanism supporting seat 4 equate with the pilot hole spacing of leaf spring mount pad 3.
Described supporting seat 4 and sensor installation seat 1 are respectively equipped with two rubber feet 12 below.
The course of work of the present invention:
By the present invention, measuring the nonlinear characteristic of leaf spring, is mainly the force and deformation of measuring leaf spring.In order to improve test efficiency, leaf spring mount pad 3 use are manually moved to near the position of sensor 11, then rotary handle 13, leading screw is withstood on the backing plate 6 on leaf spring mount pad 3 bottom land limits, at this moment, trimming handle 13, when the intelligent transfer instrument being connected with sensor shows reading, is recorded the reading that leaf spring mount pad 3 groove bottom and guide pole 2 coincide, then according to testing requirements, increase the size of power and record the scale value changing on guide pole 2, to read the size of leaf spring 10 distortion; By test figure, can draw power-displacement curve, as shown in Figure 3.
Claims (9)
1. the measurement mechanism of a leaf spring nonlinear characteristic, it is characterized in that: comprise place leaf spring leaf spring mount pad and for to leaf spring mount pad applied thrust so that leaf spring produces force application apparatus and the sensor installation seat of distortion, described force application apparatus comprises guiding mechanism and driving mechanism, sensor installation seat is connected by guiding mechanism with driving mechanism supporting seat, leaf spring mount pad is placed on the guiding mechanism between sensor installation seat and driving mechanism supporting seat, along guiding mechanism, move, driving mechanism contacts with leaf spring mount pad, drive leaf spring mount pad to move along guiding mechanism, with feeler, sensor is connected with external display the size that shows that leaf spring is stressed.
2. the measurement mechanism of leaf spring nonlinear characteristic according to claim 1, it is characterized in that: described leaf spring mount pad is the fluted body structure that does not wait on both sides, on two trough rims of groove, all have gathering sill, when leaf spring is installed, position according to the length adjustment screw of leaf spring in gathering sill, the width of gathering sill is slightly larger than screw diameter, and leaf spring mount pad bottom land two ends are respectively equipped with the pilot hole with guide pole clearance fit.
3. the measurement mechanism of leaf spring nonlinear characteristic according to claim 2, is characterized in that: the bottom land surface of described leaf spring mount pad is provided with a backing plate, contacts with driving mechanism.
4. the measurement mechanism of leaf spring nonlinear characteristic according to claim 3, is characterized in that: described backing plate is vulcanie pad or steel plate.
5. the measurement mechanism of leaf spring nonlinear characteristic according to claim 1, it is characterized in that: described guiding mechanism comprises two symmetrically arranged guide poles, guide pole two ends are threaded, with nut, be fixed on driving mechanism supporting seat and sensor installation seat respectively, center section is with scale, in order to measure the distortion size of leaf spring.
6. the measurement mechanism of leaf spring nonlinear characteristic according to claim 1, it is characterized in that: described driving mechanism comprises supporting seat, ball screw assembly, and handle, leading screw one end is connected with handle, the other end is with circular arc chamfering, one end with circular arc chamfering contacts with the backing plate of leaf spring mount pad, and the nut being set with on leading screw is fixed on supporting seat.
7. the measurement mechanism of leaf spring nonlinear characteristic according to claim 1, is characterized in that: two pilot holes of described sensor installation seat and driving mechanism supporting seat equate with the pilot hole spacing of leaf spring mount pad.
8. the measurement mechanism of leaf spring nonlinear characteristic according to claim 7, is characterized in that: below described supporting seat and sensor installation seat, be respectively equipped with two rubber feet.
9. the measurement mechanism of leaf spring nonlinear characteristic according to claim 7, is characterized in that: described sensor is pressure transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410249730.5A CN104019972B (en) | 2014-06-07 | 2014-06-07 | The measurement apparatus of leaf spring nonlinear characteristic |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410249730.5A CN104019972B (en) | 2014-06-07 | 2014-06-07 | The measurement apparatus of leaf spring nonlinear characteristic |
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| Publication Number | Publication Date |
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| CN104019972A true CN104019972A (en) | 2014-09-03 |
| CN104019972B CN104019972B (en) | 2016-08-10 |
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| CN201410249730.5A Expired - Fee Related CN104019972B (en) | 2014-06-07 | 2014-06-07 | The measurement apparatus of leaf spring nonlinear characteristic |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458092A (en) * | 2014-12-11 | 2015-03-25 | 中国航空工业标准件制造有限责任公司 | Wavy gasket spring elasticity detecting device and method |
| CN105738194A (en) * | 2014-12-10 | 2016-07-06 | 中国飞机强度研究所 | Support position regulator used for standard bending test |
| CN106092768A (en) * | 2016-08-22 | 2016-11-09 | 安徽江淮汽车股份有限公司 | A kind of leaf spring composite force bench test mechanism |
| CN107063535A (en) * | 2016-12-12 | 2017-08-18 | 贵州航天林泉电机有限公司 | A kind of leaf spring pressure-detecting device and its detection method |
| CN109238680A (en) * | 2018-10-15 | 2019-01-18 | 项孝泓 | A kind of detection device of leaf springs of car |
| CN115068178A (en) * | 2022-06-29 | 2022-09-20 | 四川大学华西医院 | Intervertebral fusion device capable of preventing internal implant from sinking and preparation method thereof |
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| US4478091A (en) * | 1981-08-18 | 1984-10-23 | Lucas Industries | Load monitoring arrangement for a vehicle axle |
| CN203894046U (en) * | 2014-06-07 | 2014-10-22 | 河北联合大学 | Device for measuring non-linear characteristics of plate spring |
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2014
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| US4478091A (en) * | 1981-08-18 | 1984-10-23 | Lucas Industries | Load monitoring arrangement for a vehicle axle |
| DE3344371A1 (en) * | 1982-12-17 | 1984-06-20 | Böhler AG, 4000 Düsseldorf | Test machine |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105738194A (en) * | 2014-12-10 | 2016-07-06 | 中国飞机强度研究所 | Support position regulator used for standard bending test |
| CN105738194B (en) * | 2014-12-10 | 2018-11-16 | 中国飞机强度研究所 | A kind of support position adjuster for standard bend test |
| CN104458092A (en) * | 2014-12-11 | 2015-03-25 | 中国航空工业标准件制造有限责任公司 | Wavy gasket spring elasticity detecting device and method |
| CN106092768A (en) * | 2016-08-22 | 2016-11-09 | 安徽江淮汽车股份有限公司 | A kind of leaf spring composite force bench test mechanism |
| CN106092768B (en) * | 2016-08-22 | 2018-11-02 | 安徽江淮汽车集团股份有限公司 | A kind of leaf spring composite force bench test mechanism |
| CN107063535A (en) * | 2016-12-12 | 2017-08-18 | 贵州航天林泉电机有限公司 | A kind of leaf spring pressure-detecting device and its detection method |
| CN107063535B (en) * | 2016-12-12 | 2023-01-20 | 贵州航天林泉电机有限公司 | Leaf spring pressure detection device and detection method thereof |
| CN109238680A (en) * | 2018-10-15 | 2019-01-18 | 项孝泓 | A kind of detection device of leaf springs of car |
| CN115068178A (en) * | 2022-06-29 | 2022-09-20 | 四川大学华西医院 | Intervertebral fusion device capable of preventing internal implant from sinking and preparation method thereof |
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|---|---|
| CN104019972B (en) | 2016-08-10 |
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Address after: 063000 Hebei province Tangshan City Xinhua West Road No. 46 Applicant after: North China Polytechnics Address before: 063000 Hebei province Tangshan City Xinhua West Road No. 46 Applicant before: Hebei United University |
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