CN107255544A - Load sensor calibrating device - Google Patents

Load sensor calibrating device Download PDF

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Publication number
CN107255544A
CN107255544A CN201710438264.9A CN201710438264A CN107255544A CN 107255544 A CN107255544 A CN 107255544A CN 201710438264 A CN201710438264 A CN 201710438264A CN 107255544 A CN107255544 A CN 107255544A
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CN
China
Prior art keywords
load
calibrated
hydraulic
plate
load sensor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710438264.9A
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Chinese (zh)
Inventor
代伟
王亮
钟祥军
刘平
伍志华
冯亮
张达
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Aviation Powerplant Research Institute AECC
Original Assignee
Hunan Aviation Powerplant Research Institute AECC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hunan Aviation Powerplant Research Institute AECC filed Critical Hunan Aviation Powerplant Research Institute AECC
Priority to CN201710438264.9A priority Critical patent/CN107255544A/en
Publication of CN107255544A publication Critical patent/CN107255544A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L25/00Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency

Abstract

The disclosure is directed to a kind of load sensor calibrating device, mainly including carrier, normal loading sensor, hydraulic system and controller;The carrier includes bottom plate and top plate, and the spaced fixation of the bottom plate and top plate, the mounting of roof plate has the first connector, and first connector is connected with load transducer to be calibrated;Normal loading sensor is connected with load transducer to be calibrated by second connector;Hydraulic system is fixed on the bottom plate of carrier, is connected by the 3rd connector with normal loading sensor, for providing power to load sensor calibrating device;Controller is connected with load transducer to be calibrated, normal loading sensor and hydraulic system signal, for control load calibrating device for sensors, and is gathered the test data of load transducer to be calibrated and normal loading sensor and calibrated.The disclosure can calibrate big load sensor at low cost, improve calibration accuracy, and be easily installed.

Description

Load sensor calibrating device
Technical field
This disclosure relates to field of measuring technique, in particular to a kind of load sensor calibrating device.
Background technology
In aircraft transmission system component structural strength test, load is the signal of interest of control and feedback.In examination The size of test load is not only measured in testing, and to provide the error of test load could more accurately evaluate parts The reliability of imposed load.The size of test load can be reflected with maneuvering load sensor signal in stryctyrak test, The signal accuracy that load transducer feeds back to controller is directly connected to the accuracy and reliability of result of the test, it is therefore desirable to right Load transducer is calibrated.
In a kind of load transducer collimation technique scheme, by normal loading sensor and load to be calibrated in calibrating installation Sensor is serially connected, by controlling cable by load cell signal to be calibrated access Loading Control device.The technical scheme As shown in figure 1, by manually using spanner rotation loading swivel nut 110, producing pressure by screw rod and being applied to what is be cascaded Normal loading sensor 120 and load transducer to be calibrated 130.The major defect of this technical scheme is need to use to add manually Carry, working strength is big, simultaneously because artificial load capability limitation, the load for the sensor that can be calibrated is smaller, be typically only capable of adding It is loaded onto 2 tons or so.
Accordingly, it is desirable to provide a kind of load sensor calibrating device that can solve the problem that said one or multiple problems.
It should be noted that information is only used for strengthening the reason of background of this disclosure disclosed in above-mentioned background section Solution, therefore can include not constituting the information to prior art known to persons of ordinary skill in the art.
The content of the invention
The purpose of the disclosure is to provide a kind of load sensor calibrating device, so at least overcome to a certain extent by Artificial load capability limitation, it is difficult to the problem of calibrating big load sensor.
According to an aspect of this disclosure there is provided a kind of load sensor calibrating device, including:Carrier, standard are carried Lotus sensor, hydraulic system and controller;The carrier includes bottom plate and top plate, and the bottom plate and top plate are spaced to be consolidated Fixed, the mounting of roof plate has the first connector, and first connector is connected with load transducer to be calibrated;Normal loading is sensed Device is connected with the load transducer to be calibrated by second connector;Hydraulic system is fixed on the bottom plate of the carrier On, it is connected by the 3rd connector with the normal loading sensor, for being carried to the load sensor calibrating device For power;Controller connects with the load transducer to be calibrated, the normal loading sensor and the hydraulic system signal Connect, passed for controlling the load sensor calibrating device, and gathering the load transducer to be calibrated with the normal loading The test data of sensor is calibrated.
In a kind of exemplary embodiment of the disclosure, the hydraulic system includes hydraulic cylinder, and the hydraulic cylinder includes cylinder The cylinder body is divided into Part I and Part II by body and piston, the piston, and the cylinder body has the first hole and the second hole, First hole position is in the Part I, and second hole position is in the Part II.
In a kind of exemplary embodiment of the disclosure, the load sensor calibrating device also includes:Directional control valve, It is connected with the hydraulic cylinder, and the directional control valve includes the first oil outlet and the second oil outlet, and first oil outlet leads to Cross the first petroleum pipeline to be connected with first hole, second oil outlet is connected by the second petroleum pipeline with second hole.
In a kind of exemplary embodiment of the disclosure, the hydraulic cylinder is hollow plunger hydraulic cylinder.
In a kind of exemplary embodiment of the disclosure, the hydraulic system also includes:Hydraulic hand-pump, is fixed on described On the bottom plate of carrier, the hydraulic hand-pump is connected with the directional control valve.
In a kind of exemplary embodiment of the disclosure, the load sensor calibrating device also includes:Pressure gauge, is used for Measure the pressure of the hydraulic hand-pump.
In a kind of exemplary embodiment of the disclosure, first connector and the 3rd connector are joint shaft Hold, second connector is connecting rod.
In a kind of exemplary embodiment of the disclosure, the load sensor calibrating device also includes:It is oriented to mounting rod, It is connected between the 3rd connector and the normal loading sensor.
In a kind of exemplary embodiment of the disclosure, the load sensor calibrating device also includes:Guide plate, with institute Guiding mounting rod connection is stated, for being oriented to the normal loading sensor with the load transducer to be calibrated;Install When, the guiding mounting rod is positioned by the guide plate.
In a kind of exemplary embodiment of the disclosure, the normal loading sensor is connected with secondary meter.
According to the load sensor calibrating device of the example embodiment of the disclosure, on the one hand, load transducer to be calibrated leads to The top plate for crossing the first connector and carrier is connected, can installed load sensor from top to bottom, larger load transducer is installed When do not need aid, be easy to the installation of big load sensor;On the other hand, load sensing to be calibrated is gathered by controller The test data of device and normal loading sensor is calibrated, and can make the measured value and normal loading of load transducer to be calibrated Needed for error between the measured value of sensor is in experiment in the range of required precision, so as to ensure load sensing to be calibrated The measurement accuracy of device;Another further aspect, power is provided by hydraulic system for load sensor calibrating device, can be in complete artificial behaviour Big load sensor is calibrated in the case of work, it is not necessary to complicated accessory system, reduce experimentation cost.
It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary and explanatory, not The disclosure can be limited.
Brief description of the drawings
Accompanying drawing herein is merged in specification and constitutes the part of this specification, shows the implementation for meeting the disclosure Example, and be used to together with specification to explain the principle of the disclosure.It should be evident that drawings in the following description are only the disclosure Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis These accompanying drawings obtain other accompanying drawings.
Fig. 1 shows a kind of structural model schematic diagram of the load sensor calibrating device in technical scheme;
Fig. 2 shows the structural model schematic diagram of the load sensor calibrating device in another technical scheme;
Fig. 3 shows the control part principle schematic of the load sensor calibrating device shown in Fig. 2;
Fig. 4 is shown to be illustrated according to the structural model of the load sensor calibrating device of the exemplary embodiment of the disclosure one Figure;And
Fig. 5 is shown to be illustrated according to the sectional structure of the load sensor calibrating device of the exemplary embodiment of the disclosure one Figure.
Reference:
1 bottom plate
2 directional control valves
3 manual pumps
4 pressure gauges
5 hydraulic cylinders
6 cylinder mount plates
7 oscillating bearings
8 are oriented to mounting rod
9 guide plates
10 vertical beams
11 oscillating bearings
12 carrying top plates
13 through holes
14 through holes
15 lateral chutes
16 lateral chutes
17 lateral chutes
410 carriers
430 normal loading sensors
450 load transducers to be calibrated
Embodiment
Example embodiment is described more fully with referring now to accompanying drawing.However, example embodiment can be real in a variety of forms Apply, and be not understood as limited to example set forth herein;On the contrary, these embodiments are provided so that the disclosure will more comprehensively and Completely, and by the design of example embodiment those skilled in the art is comprehensively conveyed to.Described feature, structure or characteristic It can combine in any suitable manner in one or more embodiments.There is provided many details in the following description So as to provide fully understanding for embodiment of this disclosure.
Although use the term of relativity in this specification, such as " on " " under " describes a component of icon for another The relativeness of one component, but these terms are used in this specification merely for convenient, for example with reference to the accompanying drawings described in show The direction of example.Be appreciated that, if making it turn upside down the upset of the device of icon, describe " on " component will As " under " component.The term of other relativities, also makees with similar such as " height " " low " " top " " bottom " " left side " " right side " Implication.When certain structure other structures " on " when, it is possible to refer to that certain structural integrity is formed in other structures, or refer to certain structure " direct " is arranged in other structures, or is referred to certain structure and be arranged on by another structure " indirect " in other structures.
Term " one ", " one ", " described " to represent to exist one or more elements/part/etc.;Term " bag Include " and " having " to represent it is open be included look like and refer to that the key element/part/except listing waits it It is outer also may be present other key element/part/etc..
Load transducer needs periodically to send metrological service to be examined and determine, and the key technical indexes of calibrating load transducer has: Sensitivity coefficient S, offset output Z, straight nonlinearity L, hysteresis error H, repeatability error R etc..Load transducer assay approval Afterwards, concatenation calibration or mark are carried out using load sensor calibrating device in aircraft transmission system component structural strength test It is fixed.Normal loading sensor and load transducer to be calibrated are serially connected in load sensor calibrating device, pass through control The signal that cable processed exports load transducer to be calibrated is accessed inside multi-route harmonic loading controller, appropriate regulation controller Load transducer relevant parameter is calibrated.The output signal of load transducer is used as multi-route harmonic loading control system simultaneously Feedback signal constitutes closed-loop control to ensure the precision of experiment loading, to eliminate load transducer, control cable and controller structure Into systematic error, it is ensured that the accurate and precision of test load.
A kind of technical scheme for realizing load transducer calibration is as shown in Fig. 2 pass through the 210 pairs of series connection of a hydraulic actuator Normal loading sensor 220 and load transducer to be calibrated 230 together is loaded.In the technical scheme, shown liquid The selection of pressure actuator 210 is using oil cylinder loading, it is necessary to which some accessory systems ensure that the load sensor calibrating device works.Specifically Shown in reference picture 3, the load sensor calibrating device also includes:Hydraulic servo system 310, point foxy old hand station 312, oil filter 314, standard are carried Lotus sensor 316, experiment load transducer 318, servo valve 320, hydraulic actuator 322, secondary meter 324, SERVO CONTROL The parts such as device 326, quick relief button 328, host computer 330.
In the technical scheme, because load transducer to be calibrated needs corresponding with experiment controller and cable to be connected to Together, thus need to remove whole calibration frame to testing stand and build position, each experiment needs individually dismounting, and workload is very Greatly;If multiple experiments need to be calibrated while treating calibration load sensor, can take multiple frameworks and oil cylinder is used for school It is accurate;On the other hand, hydraulic actuator and its accessory system are more complicated, and use cost is high;Further, since hydraulic actuator is nature Vertically-mounted, load transducer needs to screw in from the bottom up, is not easy to install when demarcating larger load transducer, sometimes need to be by The aids such as fork truck could complete to install.
Based on the above, in this exemplary embodiment, a kind of load sensor calibrating device provide firstly.Reference picture Shown in 4 and Fig. 5, the load sensor calibrating device can include:Carrier 410, controller 420, normal loading sensor 430 And hydraulic system 440.Wherein:The carrier 410 includes bottom plate 1 and top plate 12, and the bottom plate 1 and top plate 12 are spaced Fixation, the top plate 12 is provided with the first connector 11, and first connector 11 connects with load transducer 450 to be calibrated Connect;Normal loading sensor 430 is connected with the load transducer 450 to be calibrated by second connector;Hydraulic system 440 are fixed on the bottom plate 1 of the carrier 410, are connected by the 3rd connector 7 and the normal loading sensor 430 Connect, for providing power to the load sensor calibrating device;Controller 420, with the load transducer 450 to be calibrated, The normal loading sensor 430 and the connection of the signal of the hydraulic system 440, for controlling the load transducer calibration cartridge Put, and gather the test data of the load transducer to be calibrated 450 and the normal loading sensor 430 and calibrated.
According to the load sensor calibrating device in this example embodiment, on the one hand, load transducer to be calibrated passes through The top plate connection of a connection piece and carrier, can installed load sensor from top to bottom, when larger load transducer is installed not Aid is needed, is easy to the installation of big load sensor;On the other hand, by controller gather load transducer to be calibrated with The test data of normal loading sensor is calibrated, and the measured value and normal loading that can make load transducer to be calibrated are sensed Needed for error between the measured value of device is in experiment in the range of required precision, so as to ensure load transducer to be calibrated Measurement accuracy;Another further aspect, power is provided by hydraulic system for load sensor calibrating device, can be in complete artificial operation feelings Big load sensor is calibrated under condition, it is not necessary to complicated accessory system, reduce experimentation cost.
Below, the load sensor calibrating device in this example embodiment will be described in detail.
Shown in reference picture 4 and Fig. 5, in this exemplary embodiment, the basic structure of the load sensor calibrating device is upper It is carrier 410 that lower loading plate and both sides, which install vertical beam and constitute the framework closed, and carrier 410 mainly includes bottom plate 1, vertical beam 10th, carrying top plate 12, guide plate 9, cylinder mount plate 6.
To ensure that loading is unidirectional Tensile or Compressive Loading, the load transducer to be calibrated 450 being cascaded is carried with standard The two ends of lotus sensor 430 are mounted with oscillating bearing 11 and oscillating bearing 7, load transducer 450 to be calibrated, normal loading sensing The oscillating bearing that device 430 and two ends are installed connects and composes two power bar structures.Load transducer 450 to be calibrated passes through when time experiment Controlling cable used is connected with working as time experiment controller used thereby 420, and normal loading sensor connects special secondary meter.Due to treating Calibration load sensor 450 is cascaded with normal loading sensor 430, and the Tensile or Compressive Loading that it bears is identical.
Hydraulic system 440 is fixed on the bottom plate 1 of the carrier 410, is passed by oscillating bearing 7 and the normal loading Sensor 430 is connected.In this exemplary embodiment, the hydraulic system 440 can include hydraulic cylinder 5, hydraulic cylinder 5 include cylinder body and The cylinder body is divided into Part I and Part II by piston, the piston, and the cylinder body has the first hole and the second hole, described First hole position is in the Part I, and second hole position is in the Part II.Can be by defeated to the first hole or the second hole Enter pressure fluid to make the piston move downward or upward, so as to realize the commutation of hydraulic cylinder load, and then can be complete The two-way demarcation of paired load transducer to be calibrated.A progressive ground, in this exemplary embodiment, the hydraulic cylinder can be hollow Plunger piston fluid pressure cylinder, using hollow plunger hydraulic cylinder, reduces hydraulic cylinder process backhaul effective area difference, reduces demarcation bidirectional load Diversity.
In addition, in order to more easily be commutated to hydraulic cylinder load, in this exemplary embodiment, the load transducer Calibrating installation can also include directional control valve 2, and directional control valve 2 be connected with the hydraulic cylinder 5, and directional control valve 2 includes the One oil outlet and the second oil outlet, first oil outlet are connected by the first petroleum pipeline with first hole, and described second goes out Oilhole is connected by the second petroleum pipeline with second hole.Due to can easily be entered by directional control valve to hydraulic cylinder load Row commutation, can simplify drawing, the two-way comparison calibration work of pressure of big load sensor.
Specifically, by adjusting directional control valve 2 respectively to normal loading sensor 430 and load transducer to be calibrated 450 apply drawing, compressive load, and normal loading sensor 430 and load transducer to be calibrated 450 bear drawing, compressive load and shown respectively Show on the display screen of secondary meter and controller, adjust the arrange parameter of controller such as biasing with gain, make to be calibrated Difference between the indicated value of show value and normal loading sensor on secondary meter of load transducer on the controller exists In defined error range, so as to realize the calibration of load transducer.
In addition, in this exemplary embodiment, the hydraulic system 440 can also include hydraulic hand-pump 3, hydraulic hand-pump 3 are located on the bottom 1 of the carrier 410, and the hydraulic hand-pump is connected with the directional control valve.Hydraulic hand-pump 3 is used In providing power to hydraulic cylinder 5, its load action direction is controlled by directional control valve 2.In this exemplary embodiment, using manual Hydraulic pressure oil pump feed, it is to avoid using complicated automatic hydraulic control system, reduce experimentation cost, improve operability.Further Ground, in this exemplary embodiment, can also in hydraulic system 440 cut-in pressure table 4 to reduce overload risk, it is ensured that load is passed Sensor calibrating installation can be run reliably and with long-term.
In this exemplary embodiment, loaded by hydraulic hand-pump 3 and hydraulic cylinder 5, the tension and compression for bearing load transducer Value scope used in power covering experiment, on some load Grad points of the value scope, by suitably adjusting control The arrange parameter of device 420, makes between the measured value of load transducer 450 to be calibrated and the measured value of normal loading sensor 430 Error needed for experiment in the range of required precision, so as to ensure that the measurement accuracy of multi-route harmonic loading load transducer.
Shown in figure in specific embodiment, the carrier 410 of the load sensor calibrating device mainly includes bottom plate 1, erected Beam 10, carrying top plate 12, guide plate 9, cylinder mount plate 6.Two vertical beams 10 can be bolted on the both sides of bottom plate 1, The inner side of two vertical beams 10 is formed the lateral chute of the lateral chute 15 of cylinder mount plate 6, guide plate 9 by bottom to top interval 16 and the lateral chute 17 of top plate 12 is carried, carrying top plate 12, guide plate 9, cylinder mount plate 6 can pass through these chutes It is stable to be assemblied between two vertical beams 10, these chutes horizontally outward extended in the inner side of vertical beam 10, it is convenient to load carrying Top plate 12, guide plate 9, cylinder mount plate 6.And carry after top plate 12, guide plate 9 and the loading of cylinder mount plate 6, two ends can It is fixed by bolt with vertical beam 10.Guide plate 9, the middle part of cylinder mount plate 6 have through hole 13 and through hole 14 respectively, with right Hydraulic cylinder 5 fixed in fixed oscillating bearing 11 and bottom base panel 1 on neat carrying top plate 12, is formed with this and stable is available for surveying Tensile load system on probation.Carrying top plate 12, guide plate 9 pass through bolt or similar fastener with the side of cylinder mount plate 6 Fastened with vertical beam 10, can avoid that stress variation occurs in testing, influence test parameter.
Shown in reference picture 5, the load sensor calibrating device can also include:It is oriented to mounting rod 8, the guiding mounting rod 8 It is connected between oscillating bearing 7 and normal loading sensor 430.In addition, the guide plate 9 is connected with the guiding mounting rod 8, use It is oriented in normal loading sensor 430 with the load transducer 450 to be calibrated.Moreover, installing or disassembling, assembling and replacing During load transducer to be calibrated, it is possible to use the through hole 13 at the middle part of guide plate 9 comes whole one concatenation body that (top plate is to bottom plate Progress test series connection part) lower semisection pre-fixed, such as is oriented to mounting rod 8, can first be placed in the middle part of guide plate 9 Through hole, afterwards reconnect top load transducer to be calibrated 450 and normal loading sensor 430, due to be oriented to install At this moment bar 8 can be fixed by the through hole 13 at the middle part of guide plate 9, so being also unlikely to overturn in assembling process, it is possible to reduce people The input of power and equipment, very big raising operating efficiency.
Further, in this exemplary embodiment, in carrier 410 by hollow plunger hydraulic cylinder 5, be oriented to mounting rod 8, treat Calibration load sensor 450 and the composition biaxial loadings connecting rod of normal loading sensor 430, load transducer 450 to be calibrated First end be connected with oscillating bearing 7, the second end of normal loading sensor 430 is connected with oscillating bearing 11, load to be calibrated Sensor 450, normal loading sensor 430, oscillating bearing 7 and oscillating bearing 11 constitute two power bar structures.Load to be calibrated Sensor 450 is connected by controlling cable with working as time experiment controller used thereby, and normal loading sensor 430 connects special secondary instrument Table.Load transducer 450 to be calibrated is connected with normal loading sensor 430 by connecting rod, so as to ensure load to be calibrated Lotus sensor 450 and the institute of normal loading sensor 430 are loaded identical.
More specifically, in this exemplary embodiment, the working method of the load sensor calibrating device is as follows:(1) set The direction of directional control valve 2, shakes manual pump 3, makes the piston upwards of hollow plunger hydraulic cylinder 5, used in experiment Press on some Grad points in load range, by suitably adjusting the relevant parameter of controller (for example, biasing and gain etc. Parameter), make the difference between the measured value of load transducer to be calibrated and the measured value of normal loading sensor needed for experiment In the range of required precision, you can complete load transducer presses to load calibration;(2) direction of manual directional control valve 2 is set, Manual pump 3 is shaken, the piston of hollow plunger hydraulic cylinder 5 is moved downward, if in the range of the used drag load of experiment On dry Grad point, by suitably adjusting the relevant parameter (for example, the parameter such as biasing and gain) of controller, make load to be calibrated Difference between the measured value of sensor and the measured value of normal loading sensor is in the range of the required required precision of experiment, you can Complete load transducer pulls to load calibration.
Therefore, for compared with prior art, the load sensor calibrating device is simple in construction, easy to use, Ke Yijian Change drawing, the two-way correlation calibration work of pressure of big load sensor, needed when efficiently solving conventional big load transducer calibration It is interim the problem of build the cumbersome dismounting of demarcation frame, testing equipment.Simultaneously for large-scale heavy duty sensor heavier-weight, installation difficulty The problem of, loading hydraulic cylinder is placed in bottom, load transducer to be calibrated and is arranged on top, is difficult to lift peace when solving installation The problem of dress.When carrying out load transducer calibration using this load sensor calibrating device, easy to operate, labor intensity is small, can With the notable operating time for shortening pick up calibration during experiment prepares.
Those skilled in the art will readily occur to its of the disclosure after considering specification and putting into practice invention disclosed herein Its embodiment.The application is intended to any modification, purposes or the adaptations of the disclosure, these modifications, purposes or Adaptations follow the general principle of the disclosure and including the undocumented common knowledge in the art of the disclosure or Conventional techniques.Description and embodiments are considered only as exemplary, and the true scope of the disclosure and spirit are by claim Point out.
It should be appreciated that the precision architecture that the disclosure is not limited to be described above and is shown in the drawings, and And various modifications and changes can be being carried out without departing from the scope.The scope of the present disclosure is only limited by appended claim.

Claims (10)

1. a kind of load sensor calibrating device, it is characterised in that including:
Carrier, the carrier includes bottom plate and top plate, the spaced fixation of the bottom plate and top plate, the mounting of roof plate There is the first connector, first connector is connected with load transducer to be calibrated;
Normal loading sensor, is connected with the load transducer to be calibrated by second connector;And
On hydraulic system, the bottom plate for being fixed on the carrier, pass through the 3rd connector and the normal loading sensor Connection, for providing power to the load sensor calibrating device;
Controller, is connected with the load transducer to be calibrated, the normal loading sensor and the hydraulic system signal, For controlling the load sensor calibrating device, and gather the load transducer to be calibrated and the normal loading sensor Test data calibrated.
2. load sensor calibrating device according to claim 1, it is characterised in that the hydraulic system includes hydraulic pressure Cylinder, the hydraulic cylinder includes cylinder body and piston, and the cylinder body is divided into Part I and Part II, the cylinder body by the piston With the first hole and the second hole, first hole position is in the Part I, and second hole position is in the Part II.
3. load sensor calibrating device according to claim 2, it is characterised in that the load sensor calibrating device Also include:
Directional control valve, is connected with the hydraulic cylinder, and the directional control valve includes the first oil outlet and the second oil outlet, described First oil outlet is connected by the first petroleum pipeline with first hole, and second oil outlet passes through the second petroleum pipeline and described the Two holes are connected.
4. load sensor calibrating device according to claim 2, it is characterised in that the hydraulic cylinder is hollow plunger liquid Cylinder pressure.
5. load sensor calibrating device according to claim 3, it is characterised in that the hydraulic system also includes:
On hydraulic hand-pump, the bottom plate for being fixed on the carrier, the hydraulic hand-pump is connected with the directional control valve.
6. load sensor calibrating device according to claim 5, it is characterised in that the load sensor calibrating device Also include:
Pressure gauge, the pressure for measuring the hydraulic hand-pump.
7. load sensor calibrating device according to claim 1, it is characterised in that first connector and described Three connectors are oscillating bearing, and second connector is connecting rod.
8. load sensor calibrating device according to claim 7, it is characterised in that the load sensor calibrating device Also include:
Mounting rod is oriented to, is connected between the 3rd connector and the normal loading sensor.
9. load sensor calibrating device according to claim 8, it is characterised in that the load sensor calibrating device Also include:
Guide plate, is connected with the guiding mounting rod, for the normal loading sensor and the load sensing to be calibrated Device is oriented to;During installation, the guiding mounting rod is positioned by the guide plate.
10. load sensor calibrating device according to claim 1, it is characterised in that the normal loading sensor with Secondary meter is connected.
CN201710438264.9A 2017-06-12 2017-06-12 Load sensor calibrating device Pending CN107255544A (en)

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Publication number Priority date Publication date Assignee Title
CN108709684A (en) * 2018-05-25 2018-10-26 哈尔滨工业大学 The Auto-calibration platform of module oriented approach joint moment sensor
CN109000847A (en) * 2018-06-28 2018-12-14 中国人民解放军国防科技大学 A kind of scaling method for force snesor
CN109752272A (en) * 2019-03-12 2019-05-14 贵州钢绳股份有限公司 A kind of super-huge tensile testing machine calibration method of multi-cylinder stress and device
EP3617685A1 (en) * 2018-08-30 2020-03-04 MAHA Maschinenbau Haldenwang GmbH & Co. KG Load device, frame for a load device and test system

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CN105784265A (en) * 2014-12-23 2016-07-20 丹东华通测控有限公司 Load sensor calibration platform
CN205449380U (en) * 2016-04-08 2016-08-10 常州艾克瑞特衡器有限公司 Pulling force pressure test machine

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CN201688943U (en) * 2010-06-08 2010-12-29 中国航空动力机械研究所 Load sensor calibrating device
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Publication number Priority date Publication date Assignee Title
CN108709684A (en) * 2018-05-25 2018-10-26 哈尔滨工业大学 The Auto-calibration platform of module oriented approach joint moment sensor
CN109000847A (en) * 2018-06-28 2018-12-14 中国人民解放军国防科技大学 A kind of scaling method for force snesor
EP3617685A1 (en) * 2018-08-30 2020-03-04 MAHA Maschinenbau Haldenwang GmbH & Co. KG Load device, frame for a load device and test system
CN109752272A (en) * 2019-03-12 2019-05-14 贵州钢绳股份有限公司 A kind of super-huge tensile testing machine calibration method of multi-cylinder stress and device

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Application publication date: 20171017