CN207396187U - A kind of device of big load testing machine loading and measurement - Google Patents
A kind of device of big load testing machine loading and measurement Download PDFInfo
- Publication number
- CN207396187U CN207396187U CN201721390920.4U CN201721390920U CN207396187U CN 207396187 U CN207396187 U CN 207396187U CN 201721390920 U CN201721390920 U CN 201721390920U CN 207396187 U CN207396187 U CN 207396187U
- Authority
- CN
- China
- Prior art keywords
- load
- testing machine
- servo
- test
- big load
- 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.)
- Active
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides the device of a kind of big load testing machine loading and measurement, including：Big load loading device, is connected with servo-control system, including Hydraulic servo system, testing machine actuator, test tool；Displacement sensor and load transducer are further included, displacement sensor and load transducer are connected with testing machine actuator；Servo-control system includes servo control software and controller.The device can realize that big load testing machine carries out small tonnage load test, and in the case where not increasing equipment investment, the measurement accuracy and control that make experiment are greatly improved, and have widened the application range of equipment significantly.
Description
Technical field
The utility model is related to large-tonnage test scale loads to test field, in particular to a kind of big load testing machine
Carry out the device of side crops industry experiment.
Background technology
Under normal circumstances, the testing machine of different loading tonnage grades is used for appropriate level load test, this is why
There are 10 tons, 20 tons, 30 tons, 50 tons, the reason for 100 tons of various specifications testing machines.If it is done using 100 tons of testing machine only several
The load test of ton, although can also implement to test, the precision of experiment can not be met the requirements, and be commonly called as low load with strong power
It is exactly this reason.
Present testing machine is demarcated under normal circumstances according to the full scale of test scale load by way of stepping, often
Rule are demarcated and are measured according to 1,2,5,10 four gear, and 1 corresponds to full scale, and 2 correspond to the 50% of full scale, and 5 correspond to
The 20 of full scale, 10 correspond to the 10% of full scale, and the equipment dispatched from the factory of producer also having has more grade scales, but we
It is the technical indicator for having certain linearity and repeatability to know load transducer, if the linearity is weaker, can be passed through
The method of nonlinear compensation is corrected, if but repeatability is not all right, a point gear more again is not also used.Especially domestic production
Load transducer, there are no the load transducer batch production of certain model, made based on the order with user
Determine the production schedule, therefore the sensor manufactured its material property does not obtain sufficient actual effect.Sensor when in use,
If any variation occurs for temperature or humidity, characteristic can all be affected, especially be influenced most in the variation of 10% gear
Greatly, although can also measure, test data finds not having due precision by measuring, that is to say, that experiment
Do not possess legal benefit.Therefore, it is just necessary if user needs to carry out side crops industry experiment using the testing machine of large-tonnage really
Inquire into correct test method.
In view of this, it is special to propose the utility model.
Utility model content
The first of the utility model is designed to provide a kind of big load testing machine loading and the device of measurement, described device
It can realize the method that big load testing machine carries out side crops industry experiment.
The second of the utility model is designed to provide a kind of big load testing machine loading and the method for measurement, the method
Accurate measurement and control that big load testing machine completes side crops industry experiment are realized, the situation of equipment investment can not increased
Under, greatly improve the scope of equipment application, realize different size of load test can meet test specification and
Precision index.
In order to realize the above-mentioned purpose of the utility model, spy uses following technical scheme：
The utility model embodiment provides the device of a kind of big load testing machine loading and measurement, including：
Big load loading device, is connected with servo-control system, including Hydraulic servo system, testing machine actuator, experiment work
Dress；
Hydraulic servo system is sequentially connected with testing machine actuator and test tool；
Big load loading device further includes displacement sensor and load transducer, displacement sensor and load transducer and examination
Test the connection of machine actuator；
Servo-control system includes servo control software and controller, and controller connects with displacement sensor and load transducer
It connects, servo control software is mounted in the host computer being connected with controller.
It is made up of above device, can power be exported by Hydraulic servo system, be transferred to testing machine actuator, test specimen is pacified
On test tool, the servo loading for completing testing machine to the loading of test tool by actuator is tested, and SERVO CONTROL is soft
Part and controller carry out the control of whole servo loading experiment.
Further, load transducer is set as the load transducer of different size.
According to the concrete condition of testing machine, when the small tonnage for doing different loads is tested, configuration is fitted with specific test load
The load transducer of conjunction.
Further, the specification of load transducer is 1.5-2 times of maximum test load.
During big load pilot system does the experiment of side crops industry, the range of selected load transducer must meet small load
The loading demand of lotus experiment, transducer range is generally 1.5-2 times of maximum finder charge, such as the maximum load tested is
2 tons, we usually match 3 tons of load transducer.
Further, test tool is set as the test tool of different size.
When carrying out side crops industry experiment with big load testing machine, although having selected the load transducer of different size,
It is or designs a set of test tool to match with original big load sensor, is conveniently replaceable.
Further, in more than 4000mm, operating rate is controlled in 2500 times/s for the measuring range control of displacement sensor
More than.
The measuring range of displacement sensor is directly related to the movement travel of testing machine actuator；Operating rate FREQUENCY CONTROL
It can ensure the measurement accuracy of load test in 2500 times/more than s.
Further, the Bit andits control precision controlling of servo-control system is in below 0.2%Fs.
The Bit andits control precision of servo-control system is higher, and during being tested for side crops industry, the actuator of testing machine is defeated
Accurate control could be carried out by going out displacement, for improving the control accuracy of side crops industry loading output.
Further, the displacement Loading Control rate of servo-control system is 0~1.0mm/s.
Since displacement Loading Control rate is 0~1.0mm/s, under the relatively low situation of this loading speed, big load is enhanced
The stability of lotus testing machine load output.
For provided in the utility model a kind of big load testing machine loading with measurement device, have it is simple in structure,
It is easy to operate, the features such as stability is high, the testing machine of large-tonnage is enable to carry out the servo loading control of side crops industry, it can be effective
Improve test accuracy.
A kind of device except providing big load testing machine loading and measurement, the present embodiment are additionally provided using the big load
Lotus testing machine carries out loading and the measuring method of side crops industry experiment.Include the following steps：
(A) according to the suitable load transducer of different test load configurations；
(B) test tool that design matches with original big load sensor；
(C) big load sensor and small-load sensor are measured respectively, different size is selected according to content of the test
Sensor；
(D) side crops industry experiment is carried out by big load test machine loader and servo control unit.
Improvement in this way, big load testing machine can also carry out the loading and measurement of side crops industry experiment, result of the test
Precision be greatly improved.Suitable load transducer is equipped with for different test loads, meets the actual need of different loads
It asks, is measured using the load transducer being consistent, in itself from the influence of big load testing machine and big load sensor.
The test tool that design matches with original big load sensor, starting point is, when carrying out load test, needs
Big load sensor and small-load sensor are measured respectively, this just needs big load sensor being arranged at matches with it
Test tool on；And small-load sensor is then arranged on experiment test specimen, meets the actual demand measured respectively.
Load transducer is measured respectively, the sensor of different size is selected according to content of the test.The master of the step
Syllabus is, for the load test of different content, primarily determines that the range ability for testing required load transducer, pin
To the selection small-load sensor of property, device guarantee is provided to improve test accuracy and control.
By big load test machine loader and servo control unit, tried on the premise of effective control accuracy
It tests, the scope of equipment application is made to be greatly improved.
Further, servo control software distinguishes the highest test pressure that test load, displacement and Hydraulic servo system export
Carry out the setting of /V value.During experiment, safeguard measure is carried out according to different experimental enviroments, above-mentioned parameters
It is also the protection to equipment and test specimen to a certain extent to limit, and prevents that load that test specimen is born is excessive and deformed damaged,
Or the accidents such as testing machine device fails.
Further, when the highest test pressure of test load, displacement and Hydraulic servo system output reaches /V value, control
Device triggering interlocking, experiment stop, and experimental rig is shut down.
Experimental rig shut down can effective protection test process each component, improve the loading of big load testing machine with measuring
The security performance of method.
The loading of carry out big load testing machine and the method for measurement that the utility model embodiment provides, that states in realization has
Beneficial effect carries out load test at the same time it can also test specimens accurately different to rigidity using displacement-control mode；It can realize
The Whole Process Control of specimen stiffness, and additional measuring equipment need not be increased；It can realize that structural test uses Bit andits control
The pseudo that mode carries out.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described.
Fig. 1 is the loading of big load testing machine and the structure diagram of measuring device in the utility model embodiment 1；
Reference numeral：
1- Hydraulic servo systems；2- testing machine actuator；
3- test tools；4- servo-control systems；
5- displacement sensors；6- small-load sensors.
Specific embodiment
The embodiment of the utility model is described in detail below in conjunction with embodiment, but those skilled in the art
It will be understood that the following example is merely to illustrate the utility model, and it is not construed as limitation the scope of the utility model.Embodiment
In the person that is not specified actual conditions, the condition suggested according to normal condition or manufacturer carries out.Life is not specified in agents useful for same or instrument
Manufacturer person is produced, is the conventional products that can be obtained by commercially available purchase.
Embodiment 1
The loading of big load testing machine is as follows with the carrying out practically process of measuring device：
The Hydraulic servo system 1 of big load loading device, testing machine actuator 2 and test tool 3 are assembled successively, and will be watched
Control system 4 is taken to be connected with big load testing machine.The big load sensor of big load testing machine is connected with test tool 3, position
Displacement sensor 5 and small-load sensor 6 are connected with testing machine actuator, and servo control software is upper mounted on being connected with controller
In the machine of position.The loading tonnage grade of big load testing machine is 100 tons, and the maximum test load of test specimen is 10 tons, and selected load passes
The maximum range of sensor is 20 tons, and test tool matches with 100 tons of load transducers.
The measuring range of displacement sensor is 4500mm, and operating rate is controlled in 3000 times/s；The position of servo-control system
Control accuracy control is moved in 0.15%Fs；Displacement Loading Control rate is 0.5mm/s.
Servo control software is 35 tons to the highest /V value of test load, and displacement position-limiting value is 2000mm, Hydraulic servo system
The highest test pressure of output is 10MPa, during experiment, after the limitation more than above-mentioned each parameter, and testing machine stoppage protection,
Concrete structure is as shown in Figure 1.
Embodiment 2
The loading of big load testing machine is as follows with the carrying out practically process of measuring device：
The Hydraulic servo system of big load loading device, testing machine actuator and test tool are assembled successively, and by servo
Control system is connected with big load testing machine.The load transducer of big load testing machine is connected with test tool, displacement sensing
Device and small-load sensor are connected with testing machine actuator, and servo control software is mounted in the host computer being connected with controller.
The loading tonnage grade of big load testing machine is 50 tons, and the maximum test load of test specimen is 5 tons, the maximum of selected load transducer
Range is 8 tons, and test tool matches with 50 tons of load transducers.
The measuring range of displacement sensor is 4200mm, and operating rate is controlled in 2800 times/s；The position of servo-control system
Control accuracy control is moved in 0.1%Fs；Displacement Loading Control rate is 0.3mm/s.
Servo control software is 15 tons to the highest /V value of test load, and displacement position-limiting value is 1000mm, Hydraulic servo system
The highest test pressure of output is 5MPa, during experiment, after the limitation more than above-mentioned each parameter, and testing machine stoppage protection.
Embodiment 3
The loading of big load testing machine is as follows with the carrying out practically process of measuring device：
The Hydraulic servo system of big load loading device, testing machine actuator and test tool are assembled successively, and by servo
Control system is connected with big load testing machine.The load transducer of big load testing machine is connected with test tool, displacement sensing
Device and small-load sensor are connected with testing machine actuator, and servo control software is mounted in the host computer being connected with controller.
The loading tonnage grade of big load testing machine is 150 tons, and the maximum test load of test specimen is 15 tons, and selected load transducer is most
Wide range is 30 tons, and test tool matches with 150 tons of load transducers.
The measuring range of displacement sensor is 4800mm, and operating rate is controlled in 3500 times/s；The position of servo-control system
Control accuracy control is moved in 0.08%Fs；Displacement Loading Control rate is 0.8mm/s.
Servo control software is 50 tons to the highest /V value of test load, and displacement position-limiting value is 1500mm, Hydraulic servo system
The highest test pressure of output is 20MPa, during experiment, after the limitation more than above-mentioned each parameter, and testing machine stoppage protection.
Although illustrate and describing the utility model with specific embodiment, it will be appreciated that without departing substantially from this reality
Many other change and modification can be made in the case of new spirit and scope.It is, therefore, intended that in appended power
Profit requirement includes belonging to all such changes and modifications in the scope of the utility model.
Claims (8)
1. a kind of device of big load testing machine loading and measurement, which is characterized in that including：
Big load loading device, the big load loading device are connected with servo-control system, the big load loading device bag
Include Hydraulic servo system, testing machine actuator, test tool；
The Hydraulic servo system is sequentially connected with the testing machine actuator and the test tool；
The big load loading device further includes displacement sensor and load transducer, institute's displacement sensors and load transducer
It is connected with the testing machine actuator；
The servo-control system includes servo control software and controller, the controller and institute's displacement sensors and load
Sensor connects, and the servo control software is mounted in the host computer being connected with controller.
2. the apparatus according to claim 1, which is characterized in that the load transducer is set as that the load of different size passes
Sensor.
3. the apparatus of claim 2, which is characterized in that the specification of the load transducer is maximum test load
1.5-2 again.
4. the apparatus according to claim 1, which is characterized in that the test tool is set as the experiment work of different size
Dress.
5. the apparatus according to claim 1, which is characterized in that the measuring range of institute's displacement sensors is controlled in 4000mm
More than.
6. the apparatus according to claim 1, which is characterized in that the operating rate of institute's displacement sensors is controlled 2500
Secondary/more than s.
7. the apparatus according to claim 1, which is characterized in that the Bit andits control precision controlling of the servo-control system exists
Below 0.2%Fs.
8. the apparatus according to claim 1, which is characterized in that the displacement Loading Control rate of the servo-control system is
0~1.0mm/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721390920.4U CN207396187U (en) | 2017-10-25 | 2017-10-25 | A kind of device of big load testing machine loading and measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721390920.4U CN207396187U (en) | 2017-10-25 | 2017-10-25 | A kind of device of big load testing machine loading and measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207396187U true CN207396187U (en) | 2018-05-22 |
Family
ID=62330368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721390920.4U Active CN207396187U (en) | 2017-10-25 | 2017-10-25 | A kind of device of big load testing machine loading and measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207396187U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107560933A (en) * | 2017-10-25 | 2018-01-09 | 北京富力通达科技有限公司 | A kind of device and method of big load testing machine loading and measurement |
| CN110376051A (en) * | 2019-07-08 | 2019-10-25 | 东南大学 | A kind of uniaxial test load sharing system on testing machine |
-
2017
- 2017-10-25 CN CN201721390920.4U patent/CN207396187U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107560933A (en) * | 2017-10-25 | 2018-01-09 | 北京富力通达科技有限公司 | A kind of device and method of big load testing machine loading and measurement |
| CN110376051A (en) * | 2019-07-08 | 2019-10-25 | 东南大学 | A kind of uniaxial test load sharing system on testing machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI650625B (en) | Tool wear detecting device, detecting method thereof and tool wear compensation method | |
| CN103345198B (en) | The method of the digital control processing monitoring detection trigger of feature based | |
| CN105067206B (en) | A kind of deflection of bridge structure linear measurement method | |
| Denkena et al. | Feeling machines for online detection and compensation of tool deflection in milling | |
| TW202012905A (en) | Method for monitoring cutting tool abrasion | |
| CN103335589B (en) | The scaling method of welded rail temperature stress sensing node | |
| CN205426517U (en) | Lathe main shaft comprehensive properties detection / monitoring testing system | |
| CN207396187U (en) | A kind of device of big load testing machine loading and measurement | |
| CN102944417A (en) | Platform and method for testing static rigidity of machine tool spindle | |
| CN103278320A (en) | Non-contact detecting system of running dynamic stiffness of machine tool spindle | |
| US7853413B2 (en) | Method for determining characteristic values of a suspended driven axis, especially of a machine tool, as well as suitable applications, corresponding facilities and their use | |
| CN100476381C (en) | Force moment testing device of corner type electric actuating mechanism | |
| CN103551921B (en) | Piezoresistive integrated three-dimensional turning force sensor | |
| CN101187538A (en) | Screw gauge detection method | |
| CN107560933A (en) | A kind of device and method of big load testing machine loading and measurement | |
| US20130087522A1 (en) | Method for load torque limitation of a working vehicle comprising a jib | |
| CN203636509U (en) | Three-dimensional cutting force measuring device | |
| CN102467113B (en) | Controller of mechanical device with parameter learning and parameter learning method thereof | |
| Dayam et al. | In-process dimension monitoring system for integration of legacy machine tools into the industry 4.0 framework | |
| CN203069303U (en) | Testing machine for detecting bearing torque | |
| CN102728658B (en) | Method for determining flexibility error in blade processing | |
| CN115238447A (en) | Control method and control system of arm support and engineering machinery | |
| CN106441705B (en) | A kind of online rotary inertia test method of turntable | |
| CN104132015A (en) | Null shift compensation method and device for hydraulic servo valve of rolling mill | |
| CN107575211A (en) | A kind of online calibration method of pump unit dynamometer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |