CN203688149U - Correction device of pressure sensor - Google Patents
Correction device of pressure sensor Download PDFInfo
- Publication number
- CN203688149U CN203688149U CN201420001489.XU CN201420001489U CN203688149U CN 203688149 U CN203688149 U CN 203688149U CN 201420001489 U CN201420001489 U CN 201420001489U CN 203688149 U CN203688149 U CN 203688149U
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- shaped stent
- door shaped
- correcting
- pressure transducer
- chain
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Abstract
The utility model provides a correction device of a pressure sensor. The correction device comprises a first gate type bracket installed on a bottom plate and comprises a second gate type bracket which is connected with the first gate type bracket. The beam of the first gate type bracket is equipped with pressing modules which are configured with standard sensors. Two vertical rods are respectively connected with linear bearings. Under the traction of the linear bearings, the bracket slides up and down along a linear axis which is perpendicular to the bottom plate. A driving device is suspended at the beam of the second gate type bracket. The driving device is connected with a pushing block and provides the vertical movement stroke of the pushing block. Two ends of the pushing block are respectively connected with the end parts of two chains. The other end part of each of the two chains is respectively connected to two linear axes of the first gate type bracket, and vertical pushing force and vertical displacement are transmitted to the bracket through the chains. According to the correction device, the fitting is carried out by using the data collected by the standard sensors and the data of a pressing sensor on an object to be measured, and when the device is applied to the pressure sensors of balancing car foot pedals, the pressure sensors of two foot pedals can be corrected at the same time.
Description
Technical field
The utility model relates to a kind of means for correcting of pressure transducer.
Background technology
Two-wheel balance car more and more receives people's concern and likes as a kind of vehicles of easy easy control.In order to improve the performance of balance car, existing two-wheel balance car is arranged on pressure transducer on pedal, can measure accurately user and stand in the weight on balance car, thereby in the process of riding, the gravity of distinguishing consumer is to act in whole or in part on balance car exactly, and the size of the gravity load of two-wheeled, riding condition that can distinguishing consumer by this kind of method, judge whether user occurs that thereby accident stops in time, improve the security of dolly, the subsidiary function that simultaneously provides load weight to show, watches for user.
When pressure transducer is arranged on two-wheel balance car, because pressure transducer is surperficial and car body mounting surface is not fully-flattened, when lock-screw, can causes pressure transducer inside to occur stress, thereby cause each foil gauge to occur distortion in various degree.Therefore, pressure transducer is arranged on to pedal also to be needed again to proofread and correct afterwards, and the data that obtain after proofreading and correct are just enough accurate.But, existing means for correcting is all respectively one-sided pressure transducer to be carried out to verification, inevitably there is larger mushing error, therefore need a kind of means for correcting of design badly and can proofread and correct the pressure transducer on two pedals on two-wheel balance car simultaneously.
Utility model content
For overcoming the problem of the deficiencies in the prior art and existence, the utility model provides a kind of means for correcting of pressure transducer, to proofread and correct the pressure transducer on two pedals on two-wheel balance car simultaneously.
The utility model is achieved through the following technical solutions: a kind of means for correcting of pressure transducer, comprise base plate and be installed on the first door shaped stent on base plate, compression module for load from testing load to the measured object that is mounted with pressure transducer to be corrected is installed on the crossbeam of the first door shaped stent, on this compression module, standard transducer is set; Two montants of the first door shaped stent join with linear bearing respectively, and the linear axis that makes support stand on base plate along vertical straight under the traction of this linear bearing slides up and down; The left or right side of the first door shaped stent arranges the second door shaped stent, suspends the vertical shift motion that has a drive unit, this drive unit to connect a pushing block and pushing block is provided on the crossbeam of described the second door shaped stent in midair; The two ends of described pushing block connect respectively two chain ends, this two chain does not extend mutually alternately along montant and the cross bar of the first door shaped stent and the second door shaped stent, the sprocket wheel location on this two stands is fixed in utilization, and the other end of two chains is connected on two linear axis of the first door shaped stent.
Further, between the linear bearing of described the first door shaped stent and base plate, back-moving spring is set.
Montant, the crossbeam of described the first door shaped stent and the second door shaped stent are hollow structure, and inside is fixedly installed sprocket wheel and holds chain and walk; The crossbeam of the first door shaped stent and the second door shaped stent is interconnected.The crossbeam of described the first door shaped stent and the second door shaped stent is on same straight line and be connected.
Described chain comprises the first chain and the second chain, pass through outside two montants of means for correcting of the first chain, and one end connects the linear axis that is positioned at outside, and the other end connects the outside of pushing block; Pass through inner side two montants of means for correcting of the second chain, one end connects the linear axis that is positioned at inner side, and the other end connects the inner side of pushing block.
On the crossbeam of described the first door shaped stent, be distributed with plural compression module.Described compression module comprises that one is fixed on the guide rod module on crossbeam, the briquetting contacting with observed matter, between described guide rod module and briquetting, standard transducer is set; Described guide rod module comprises the guide rod and the spring limited block that there are spring for the base of location guide, outside cover from the bottom to top successively, and on described spring limited block, reserved through hole passes to hold guide rod.
The drive unit of described the second door shaped stent is an electric pushrod, and the end of this electric pushrod and the middle part of push card join.The bottom of the second door shaped stent arranges the limiting plate of pushing block.
On described base plate, be provided with front limit piece, rear limited block, left limit piece, right limit piece.
Compared with the prior art, the data of the pressure transducer arranging on the data that gather by standard transducer and determinand are carried out matching to the utility model, can carry out easily the correction of the pressure transducer of wide range; By on the crossbeam there is vertical displacement, plural compression module being set, can proofread and correct the multiple pressure transducers that are distributed on diverse location simultaneously; While being applied to the pressure transducer of balance car pedal, can proofread and correct two pressure transducers on pedal simultaneously.
Brief description of the drawings
Fig. 1 is the assembling schematic diagram of means for correcting of the present utility model;
Fig. 2 is the chain conspectus of means for correcting of the present utility model;
Fig. 3 is the application schematic diagram of means for correcting of the present utility model;
Fig. 4 is the structural representation of the compression module of means for correcting of the present utility model;
Fig. 5 is the structural representation of the standard transducer of means for correcting of the present utility model.
In figure: 1-base plate, 2-the first door shaped stent, the crossbeam of 3-the first door shaped stent, 4-compression module, 5-standard transducer, the montant of 6-the first door shaped stent, 7-linear bearing, 9-the second door shaped stent, 10-drive unit, 11-pushing block, 12-chain, 13-sprocket wheel, 14-back-moving spring, 15-the first chain, 16-the second chain, 17-guide rod module, 18-briquetting, 19-base, 20-guide rod, 21-spring limited block, 22-limiting plate, 23-front limit piece, limited block after 24-, 25-left limit piece, 26-right limit piece, 27-sprocket wheel fixed bar, 28-sprocket wheel fixed head 29-balance car pedal, 30-CAN interface, 31-chain point of fixity.
Embodiment
For the ease of those skilled in the art's understanding, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.It should be pointed out that specific embodiment described herein is only for explaining the utility model, and be not used in restriction the utility model.
A means for correcting for pressure transducer, as shown in Figure 1, comprises base plate 1 and is installed on the first door shaped stent 2 on base plate, for integrated support and fixing.The left or right side of the first door shaped stent arranges the second door shaped stent 9.
Compression module 4 for load from testing load to the measured object that is mounted with pressure transducer to be corrected is installed on the crossbeam 3 of the first door shaped stent, standard transducer 5 is set on this compression module; Described compression module 4 is for providing clamping stroke and detecting in real time current pressure.The utility model is for the timing of the pressure transducer of balance car pedal, and described measured object is the balance car pedal part that is equipped with pressure transducer.
Two montants of the first door shaped stent join with linear bearing 7 respectively, and the linear axis that makes support stand on base plate along vertical straight under the traction of this linear bearing slides up and down; Especially in the time that the first door shaped stent presses down, be movable downwards by linear bearing 7.Preferably, between the linear bearing 7 of described the first door shaped stent and base plate 1, back-moving spring 14 is set, the elastic force that provides upward sliding to reset for being completed backward the first door shaped stent, and avoid needing to adopt manually or other modes reset.
On the crossbeam of described the second door shaped stent, suspend the vertical shift motion that has a drive unit 10, this drive unit to connect a pushing block 11 and pushing block is provided in midair.In preferred embodiment of the present utility model, the drive unit 10 of described the second door shaped stent is an electric pushrod, and the push rod of 0～600kg power can be provided, and the end of this electric pushrod and the middle part of push card join.In other embodiment of the present utility model, described drive unit also can be the mechanism of the common output stretching motion such as hydraulic cylinder, all should be included in protection domain of the present utility model.
The two ends of described pushing block connect respectively two chain 12 ends, this two chain does not extend mutually alternately along montant and the cross bar of the first door shaped stent and the second door shaped stent, the sprocket wheel 13 that utilization is fixed on this two stands is located, and the other end of two chains, two chain point of fixity 31 are as shown in Figure 2 connected to two linear axis of the first door shaped stent.Described pushing block is fixed on electric pushrod, pulls two chains when test, by the first door shaped stent and the second door shaped stent to pressing down.
In preferred embodiment of the present utility model, montant, the crossbeam of described the first door shaped stent 2 and the second door shaped stent 9 are hollow structure, and inside is fixedly installed sprocket wheel 13 and holds chain 12 and walk; The crossbeam of the first door shaped stent and the second door shaped stent is interconnected, and preferably, the crossbeam of described the first door shaped stent 2 and the second door shaped stent 9 is on same straight line and be connected.As shown in Figure 1, top two edges of the first door shaped stent 2 and the second door shaped stent 9 arrange sprocket wheel fixed bar 27, for fixed chain wheels; The upper end of the adjacent montant of the first door shaped stent 2 and the second door shaped stent 9 also arranges the sprocket wheel fixed head 28 of fixed chain wheels.As shown in Figure 2, described chain comprises pass through outside two montants of means for correcting of the first chain 15 and the second chain 16, the first chains, and one end connects the linear axis that is positioned at outside, and the other end connects the outside of pushing block; Pass through inner side two montants of means for correcting of the second chain, one end connects the linear axis that is positioned at inner side, and the other end connects the inner side of pushing block.In the time of the downward slippage of pushing block, transmit downward pressure by chain to the first door shaped stent 2 and the second door shaped stent 9.
On the crossbeam of described the first door shaped stent, be distributed with plural compression module 4.In the time that means for correcting of the present utility model is applied to the pressure transducer of pedal of two-wheel balance car, proofread and correct, as shown in Figure 3, be distributed with two compression modules 4 on crossbeam, this compression module contacts and provides pressure on balance car pedal 29.As shown in Figure 4, described compression module comprises that one is fixed on the guide rod module 17 on crossbeam, the briquetting 18 contacting with observed matter, between described guide rod module 17 and briquetting 18, standard transducer 5 is set; Described guide rod module comprises the guide rod 20 and the spring limited block 21 that there are spring for the base 19 of location guide, outside cover from the bottom to top successively, and on described spring limited block, reserved through hole passes to hold guide rod.
Preferably, the bottom of described the second door shaped stent 9 arranges the limiting plate 22 of pushing block, for limiting the range of electric pushrod.
On described base plate 1, be provided with front limit piece 23, rear limited block 24, left limit piece 25, right limit piece 26.Described front limit piece 23 is for the location of measured object, and as in the time that balance car arrives front limit piece, position puts in place.Rear limited block 24, in the time that measured object piece is applied on measured object, prevents that by rear limited block dolly from retreating.Preferably, left limit piece 25, right limit piece 26 also arrange guiding surface, for ensure that measured object can enter easily means for correcting and reach limit effect simultaneously.
The assembling schematic diagram of proofreading and correct when accompanying drawing 3 is applied to the pressure transducer of pedal of two-wheel balance car for the utility model.In this Application Example, need detection and the pressure transducer of proofreading and correct and standard transducer as shown in Figure 5, foil gauge is attached to respectively the both sides of pressure transducer, to carry out temperature compensation (symmetrical foil gauge can compensate the impact bringing because of the temperature difference preferably).The range of this pressure transducer is 0～300kg, fixes by outer four holes, and interior four holes are directly stressed.When this pressure transducer being arranged on to the position of two-wheel balance car both sides pedal, while tightening screw, there will be stress raisers, changing appears in the linearity of the pressure transducer of measuring before causing, and after therefore dolly being assembled, needs again to proofread and correct.Described balance car is provided with CAN interface 30, for realizing the interconnected of balance car and data processing equipment, transmits pressure data.
In this Application Example, when the crossbeam of the first door shaped stent moves downward, the briquetting 18 of compression module 4 acts on balance car, while continuing to move downward, guide rod 20 protrudes upward, now spring-compressed, by spring, stroke is amplified, conveniently obtain the force value needing, the current power being applied on pedal of standard transducer the real time measure, and the numerical value that pressure transducer on pedal obtains is sent on data processing equipment by the CAN interface of balance car afterbody, proofread and correct accordingly, obtain the linearity curve y=kx+b transforming, then value is write in the flash of balance car and preserve.
In the time of actual measurement, should ensure that left and right pedal force is identical as far as possible, in order to reach above effect, need to be by downward the crossbeam of the first door shaped stent translation, the range that on balance car, the pressure transducer of two pedals is proofreaied and correct is like this same.Now, need to ensure that the structure of chain and sprocket wheel can bear the power of 600kg.
Two anchor portion of chain are as shown in Figure 2 to be fixed on the axle of linear bearing, and in the time that electric pushrod promotes downwards, the distance that both sides chain shortens is the same, and at this moment support entirety moves downward, and the briquetting 18 of compression module 4 is pressed on balance car.Two briquettings 18 are all arranged on same crossbeam, therefore both pressure sizes are consistent substantially, the thrust of electric pushrod maximum is 600kg, therefore the power of bearing on each pressure transducer is probably 300kg, can ensure gamut measurement.After correction completes, when electric pushrod reclaims, back-moving spring 14 restPoses support again.
In reality is proofreaied and correct, operating process comprises:
1) balance car to be tested is first crossed rear limited block, while pushing means for correcting, by the inclined-plane guide effect of left and right limited block, balance car is imported, after balance car imports, position, left and right puts in place, while continuing to push, wheel touches front limit piece, and balance car puts in place, briquetting is just pressed in the central authorities of pedal, and has well limited balance car by rear limited block and outwards moved;
2) after balance car puts in place, connect the USB line of balance car afterbody, balance car power supply simultaneously;
3) stable equilibrium's car, starts electric pushrod;
4) gather ten stable point, obtain the numerical value that the pressure transducer on the power that is applied to pedal and the balance car pedal of standard transducer the real time measure gathers, carry out least square fitting curve;
5) k, the b value record of curve matching being obtained get off, and are written in balance car flash, as the linearity curve of proofreading and correct;
6) reload one time, whether the difference between verification pressure sensor data again and standard transducer data is in the threshold value of setting;
7) verification difference is after permitting in threshold values, and means for correcting restPoses, and takes out the good balance car of verification;
8) repeat above-mentioned step, carry out the verification of next balance car.
The content of mentioning in above-described embodiment is not to restriction of the present utility model, is not departing under the prerequisite of inventive concept of the present utility model, and any apparent replacement is all within protection domain of the present utility model.
Claims (10)
1. a means for correcting for pressure transducer, comprises base plate (1) and is installed on the first door shaped stent (2) on base plate, it is characterized in that:
The upper compression module (4) of installing for load testing load to the measured object that is mounted with pressure transducer to be corrected of crossbeam (3) of the first door shaped stent, arranges standard transducer (5) on this compression module;
Two montants of the first door shaped stent join with linear bearing (7) respectively, and the linear axis that makes support stand on base plate along vertical straight under the traction of this linear bearing slides up and down;
The left or right side of the first door shaped stent arranges the second door shaped stent (9), on the crossbeam of described the second door shaped stent, suspend the vertical shift motion that has a drive unit (10), this drive unit to connect a pushing block (11) and pushing block is provided in midair;
The two ends of described pushing block connect respectively two chains (12) end, this two chain does not extend mutually alternately along montant and the cross bar of the first door shaped stent and the second door shaped stent, sprocket wheel (13) location on this two stands is fixed in utilization, and the other end of two chains is connected on two linear axis of the first door shaped stent.
2. the means for correcting of pressure transducer according to claim 1, is characterized in that: between the linear bearing (7) of described the first door shaped stent and base plate (1), back-moving spring (14) is set.
3. the means for correcting of pressure transducer according to claim 2, it is characterized in that: montant, the crossbeam of described the first door shaped stent (2) and the second door shaped stent (9) are hollow structure, inside is fixedly installed sprocket wheel (13) and holds chain (12) and walk; The crossbeam of the first door shaped stent and the second door shaped stent is interconnected.
4. the means for correcting of pressure transducer according to claim 3, is characterized in that: the crossbeam of described the first door shaped stent (2) and the second door shaped stent (9) is on same straight line and be connected.
5. the means for correcting of pressure transducer according to claim 3, it is characterized in that: described chain comprises the first chain (15) and the second chain (16), pass through outside two montants of means for correcting of the first chain, one end connects the linear axis that is positioned at outside, and the other end connects the outside of pushing block; Pass through inner side two montants of means for correcting of the second chain, one end connects the linear axis that is positioned at inner side, and the other end connects the inner side of pushing block.
6. the means for correcting of pressure transducer according to claim 5, is characterized in that: on the crossbeam (3) of described the first door shaped stent, be distributed with plural compression module (4).
7. the means for correcting of pressure transducer according to claim 6, it is characterized in that: described compression module (4) comprises that one is fixed on the guide rod module (17) on crossbeam, the briquetting (18) contacting with observed matter, and standard transducer (5) is set between described guide rod module and briquetting; Described guide rod module comprises the base (19) for location guide, guide rod (20) and the spring limited block (21) that outside cover has spring from the bottom to top successively, and on described spring limited block, reserved through hole passes to hold guide rod (20).
8. the means for correcting of pressure transducer according to claim 1, is characterized in that: the drive unit (10) of described the second door shaped stent is an electric pushrod, and the end of this electric pushrod and the middle part of push card join.
9. the means for correcting of pressure transducer according to claim 8, is characterized in that: the bottom of described the second door shaped stent (9) arranges the limiting plate (22) of pushing block.
10. according to the means for correcting of the pressure transducer described in any one in claim 1～9, it is characterized in that: on described base plate (1), be provided with front limit piece (23), rear limited block (24), left limit piece (25), right limit piece (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420001489.XU CN203688149U (en) | 2014-01-02 | 2014-01-02 | Correction device of pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420001489.XU CN203688149U (en) | 2014-01-02 | 2014-01-02 | Correction device of pressure sensor |
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| Publication Number | Publication Date |
|---|---|
| CN203688149U true CN203688149U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420001489.XU Expired - Fee Related CN203688149U (en) | 2014-01-02 | 2014-01-02 | Correction device of pressure sensor |
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| CN (1) | CN203688149U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198113A (en) * | 2014-09-18 | 2014-12-10 | 中国空气动力研究与发展中心高速空气动力研究所 | Double-end calibration device and calibration method |
| CN108624919A (en) * | 2018-07-02 | 2018-10-09 | 青海桥头铝电股份有限公司 | A kind of aluminium electroloysis Sai Er switches electronic correction machine of connector presser |
| CN112763122A (en) * | 2021-01-13 | 2021-05-07 | 河南平高电气股份有限公司 | Spring pressure sensor calibration device of spring operating mechanism |
-
2014
- 2014-01-02 CN CN201420001489.XU patent/CN203688149U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198113A (en) * | 2014-09-18 | 2014-12-10 | 中国空气动力研究与发展中心高速空气动力研究所 | Double-end calibration device and calibration method |
| CN104198113B (en) * | 2014-09-18 | 2017-02-01 | 中国空气动力研究与发展中心高速空气动力研究所 | Double-end calibration device and calibration method |
| CN108624919A (en) * | 2018-07-02 | 2018-10-09 | 青海桥头铝电股份有限公司 | A kind of aluminium electroloysis Sai Er switches electronic correction machine of connector presser |
| CN112763122A (en) * | 2021-01-13 | 2021-05-07 | 河南平高电气股份有限公司 | Spring pressure sensor calibration device of spring operating mechanism |
| CN112763122B (en) * | 2021-01-13 | 2023-12-15 | 河南平高电气股份有限公司 | Spring pressure sensor calibration device of spring operating mechanism |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20170102 |
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| CF01 | Termination of patent right due to non-payment of annual fee |