CN201812405U - Torsional pressure tester - Google Patents
Torsional pressure tester Download PDFInfo
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- CN201812405U CN201812405U CN201020152965XU CN201020152965U CN201812405U CN 201812405 U CN201812405 U CN 201812405U CN 201020152965X U CN201020152965X U CN 201020152965XU CN 201020152965 U CN201020152965 U CN 201020152965U CN 201812405 U CN201812405 U CN 201812405U
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- main shaft
- torsion
- testing machine
- pressure testing
- test
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Abstract
The utility model discloses a torsional pressure tester comprising a pressurizing system and a torsion system, wherein the pressurizing system consists of a linear sliding rail and a sliding block that are meshed with each other; the upper part of the sliding block is connected with a pressurizing drive device; a pressure sensor is arranged between the sliding block and the pressurizing drive device; a radial clamp upper module is fixed at the lower part of the sliding block; the torsion system comprises a spindle, the lower end of the spindle is connected with a torsion drive device, a torque sensor is arranged between the spindle and the torsion drive device, and the upper end of the spindle is connected with a rotary working table on which a radial clamp lower module is arranged. Pressure and torsion tests can be carried out respectively to test blocks between the radial clamp upper module and the radial clamp lower module by the pressurizing drive device and the torsion drive device, so that the use is convenient, the control precision is high, and the performance is stable. Automatic pressurizing and torsion performance tests to elastic bearings of rotor wings of a military helicopter can be met, analysis to a data curve can be carried out during test, therefore, test results are obtained.
Description
Technical field
The utility model relates to a kind of Experiments of Machanics device, relates in particular to a kind of pressure testing machine of turning round.
Background technology
Physical and mechanical experiment equipment is the experimental provision of using always, such as in order to ensure with the performance that improves military helicopter rotor resilient bearing, torsion and pressure testing device have appearred.
In the prior art, torsion and pressure testing device are tested by manually carrying out axial compression stiffness test and torsional rigidity, and the torque failure test, and the pressure and the displacement of manual measurement and record process of the test.
There is following shortcoming at least in above-mentioned prior art:
Be not easy in the use to measure and record data, and the frequency of measuring and writing down is lower, has so just reduced the accuracy that data and curves is analyzed.
The utility model content
The purpose of this utility model provide a kind of easy to use, control accuracy is high, stable performance turn round the pressure testing machine.
The purpose of this utility model is achieved through the following technical solutions:
The pressure testing machine of turning round of the present utility model comprises frame, and the top of described frame is provided with compression system, and the bottom of described frame is provided with torsion system;
Described compression system comprises intermeshing linear slide rail and slide block, described slide rail vertically is fixed on the described frame, the top of described slide block is connected with the pressurised driving device, be provided with pressure transducer between described slide block and the described pressurised driving device, the bottom of described slide block is fixed with radially upper clamping fixture piece;
Described torsion system comprises main shaft, described main shaft is installed on the described frame by main shaft bearing, the lower end of described main shaft with reverse drive unit and be connected, described main shaft and described reversing are provided with torque sensor between the drive unit, the upper end of described main shaft is connected with rotary table, and described rotary table is provided with radially lower clamping fixture piece.
The technical scheme that is provided by above-mentioned the utility model as can be seen, the pressure testing machine of turning round described in the utility model, because compression system comprises intermeshing linear slide rail and slide block, slide rail vertically is fixed on the frame, the top of slide block is connected with the pressurised driving device, be provided with pressure transducer between slide block and the pressurised driving device, the bottom of slide block is fixed with radially upper clamping fixture piece; Torsion system comprises main shaft, main shaft is installed on the frame by main shaft bearing, the lower end of main shaft with reverse drive unit and be connected, main shaft and reverse and be provided with torque sensor between the drive unit, the upper end of main shaft is connected with rotary table, and rotary table is provided with radially lower clamping fixture piece.Can by the pressurised driving device and reverse drive unit respectively to upper clamping fixture piece radially and radially the test specimen between the lower clamping fixture piece carry out pressure and torsional test, and by pressure transducer and torque sensor test findings is detected respectively, easy to use, control accuracy is high, stable performance.
Description of drawings
Fig. 1 turns round the structural representation of pressing testing machine for the utility model;
Fig. 2 is that the A-A of Fig. 1 is to cut-open view.
Embodiment
The pressure testing machine of turning round of the present utility model, its preferable embodiment be as shown in Figure 1 and Figure 2:
Comprise frame 1, the top of described frame 1 is provided with compression system, and the bottom of described frame 1 is provided with torsion system; Described compression system comprises intermeshing linear slide rail 2 and slide block 3, described linear slide rail 2 vertically is fixed on the described frame 1, the top of described slide block 3 is connected with the pressurised driving device, be provided with pressure transducer 11 between described slide block 3 and the described pressurised driving device, the bottom of described slide block 3 is fixed with radially upper clamping fixture piece 12; Described torsion system comprises main shaft 5, described main shaft 5 is installed on the described frame 1 by main shaft bearing 8, the lower end of described main shaft 5 with reverse drive unit and be connected, described main shaft 5 and described reversing are provided with torque sensor 7 between the drive unit, the upper end of described main shaft 5 is connected with rotary table 13, and described rotary table 13 is provided with radially lower clamping fixture piece 14.
Described compression system can also comprise displacement measuring device 4, can also comprise the encoding up/down device.
Described torsion system can also comprise rotary encoder 15.
Concrete described pressurised driving device 10 can comprise intermeshing leading screw 9 and screw 16, and described screw 16 is fixed on the described frame 1, and the lower end of described leading screw 9 is connected with described slide block 3, and the upper end of described leading screw 9 is connected with the pressurization servomotor; The described drive unit 6 that reverses can comprise and reverse servomotor that the lower end of described main shaft 5 is connected with the described servomotor that reverses; Reach main shaft 5 and reverse between the servomotor between leading screw 9 and the pressurization servomotor and can be respectively equipped with precision speed reduction device.
Radially between upper clamping fixture piece 12 and the described radially lower clamping fixture piece 14 the rotor bearing 17 of being tested being housed, also can be other test specimen.
The utility model can also comprise control system and man-machine interactive system, is used for system is controlled automatically.
Specific embodiment:
The frame of the utility model design is a queen post, divides three layers of connection between two posts, and lower floor and upper strata mounting torque respectively drive and the pressure-driven reductor.Middle one deck is the test face, and rotary table and stroke slider up and down are installed.The reductor model is KAF107R77, its speed ratio i=1011 joins the MDMA1.5kW motor, reductor is by 30 ° of flat tooth root involute spline transferring power of cylindrical straight gear, its number of teeth is that 29 moduluses are 87 millimeters of the big footpath of 3 male spliness 90 reference diameters, the torque sensor model is the AKC-98B type, maximum range is that 5000N-m pressure transducer model is BK-4, and maximum range is 50 tons.The rotary table main shaft bearing is 29330 types; Slide block guide rail adopts HGW65HA molded lines slide rail.The MT1200 length gauge is adopted in linear measure longimetry.These structures that adopted can guarantee effectively being turned round and pressurized and accurate measurement and the effectively control of realization of rotor resilient bearing.
Because the performance test test load is big, the accuracy requirement height, frame adopts the cast iron device, and foundry goods is through eliminating stress processing, prevent pressurized or produce distortion when being turned round, the testing requirements situation of comprehensive various homemade and external import rotor bearing arrangements, the pressure of maximum carrying designed capacity 500KN on the whole frame vertical direction.
Compression system comprises linear slide rail, slide block, displacement measurement meter, leading screw and several parts such as pressure transducer, reductor.Linear slide rail is equipped with in the inboard of central rack, is used for guaranteeing that deflection does not appear in pressure head lifting process vertical direction, has guaranteed the precision of vertical lifting.Lifting process adopts driven by servomotor, by displacement meter measures displacement lifting displacement, guarantees lifting travel by scrambler simultaneously, the closed-loop system that dual bit shift measurement mode constitutes, strict guarantee precision be controlled in the claimed range.
Torsion system mainly is made up of rotary table, main shaft, torque sensor, rotary encoder, main shaft bearing, reductor etc.Rotary table is used for locating the rotor resilient bearing, and the worktable anchor clamps are conveniently replaced, so that adapt to the test of reversing of different series rotor resilient bearing.Main shaft bearing and main shaft have constituted the main mechanical mechanism of rotation, drive left rotation and right rotation by servomotor by accurate reductor, the anglec of rotation and direction are not subjected to any restriction, measure the anglec of rotation by rotary encoder, the torque value when torque sensor is gathered different angles simultaneously.
Control system is for being the control core executive system with PLC, being data interaction and disposal system two parts composition of core with the industrial control computer.In the control executive system, moment of torsion and pressure transducer produce the strain bridge signal, and it converts current signal to through the signal condition module.Current signal has anti-interference preferably transfer capability than voltage signal, in its analogue collection module in lead is sent to Electric Appliance Cabinet, after analog to digital conversion directly in the computing machine.Computing machine is adjusted the analog output module voltage output value according to the torque value and the force value that feed back by PLC, thus the running speed of control servomotor.PLC also controls each corresponding action simultaneously, as the motor start and stop, and pilot lamp demonstration etc.Industrial control computer sends execution command to PLC, and from each state parameter of that read back device of PLC, read sensor and the torque value and the force value of preserving the rotor resilient bearing.
In the process of the test, the rotor resilient bearing is reversed, record reverses employed moment and the bent deflection of rotor shaft bearing torque simultaneously; And the rotor bearing pressurizeed, record employed pressure of pressurization and rotor shaft are born the deflection of pressure condition simultaneously.The rotor bearing is reversed and pressurizes and both can carry out simultaneously, also can carry out respectively.The rotor bearing is reversed or pressurizes and all adopt mechanical drive, and by driven by servomotor, Stability Analysis of Structures is reliable.What can dynamically show the rotor bearing is subjected to torsional moment and deformation angle; The rotor bearing bear pressure and deformation displacement, control accuracy height, stable performance.
Can guarantee effectively being turned round and pressurized and accurate measurement and the effectively control of realization of rotor resilient bearing, and the data analysis of performance test.
The test request of rotor resilient bearing performance:
The test of a, axial compression stiffness K c:
Axial compression rigidity is to make the large and small joint of resilient bearing produce the required power of unit relative displacement along the X-axis compression direction.Fixing big joint, along X-axis on the little joint of resilient bearing, apply axial force F c (unit: N), the displacement that the little joint of resilient bearing produces under directed force F c be S (unit: mm), resilient bearing axial compression rigidity: Kc=Fc/S then.
The test of b, torsional rigidity K θ:
Torsional rigidity is to make the large and small joint of resilient bearing produce the required moment of unit relative torsional angle around the X-axis compression direction.Fixing big joint applies the (unit: N.m), measure little joint simultaneously with respect to the torsion angle of big joint (unit: °), the then torsional rigidity of resilient bearing: K θ=M θ/θ around the moment M of axis X θ on little joint.
Rotor resilient bearing experiment process is as follows:
(1) the applied voltage test process step is: device rotor resilient bearing-selection test type-input pre-load, prestrain speed, the prestrain number of times, loading velocity, test load, loading number of times-begin the automatic curve plotting of test-process of the test is preserved and is automatically reset the end test after data-test finishes.
(2) the twisting test process step is: device rotor resilient bearing-selection test type-input pretwist angle, windup-degree, rotating speed, corner, loaded load, number of torsions-the begin automatic curve plotting of test-process of the test, preserve and automatically reset the end test after data-test finishes.Twisting test comprises reverses test and torsion break test.As figure below:
(3) pressurization and twisting test also can be taken out by the test load spectrum, directly put then to begin to test to get final product, and operate more succinct.Test load spectrum can edit in advance and be stored in the computing machine, according to the rotor bearing of different series according to corresponding testing requirements editor loading spectrum.
The beneficial effects of the utility model are:
This equipment can satisfy the automatic pressurization and the twisting property test of military helicopter rotor resilient bearing, and carries out the data and curves analysis in test, draws test findings.Fill up the blank of China aviation army industry rotor shaft load testing equipment, effectively avoided the error that artificial test brought, improved work efficiency.
In the specific embodiment,,, can carry out the test of axial compression stiffness test and torsional rigidity for the needs of actual performance test in order to realize reversing and applied voltage test of various serial rotor bearings, and the torque failure test.And can write down pressure and the displacement data and the pressure/displacement real-time curve of process of the test, and moment of torsion and angle-data and moment of torsion/angle real-time curve, thus the reliability of check rotor resilient bearing performance improved.This operation of equipment is convenient, and the automaticity height has alleviated worker's labour intensity, has effectively avoided the error that artificial test brought.
The above; it only is the preferable embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.
Claims (8)
1. turn round the pressure testing machine for one kind, comprise frame, it is characterized in that, the top of described frame is provided with compression system, and the bottom of described frame is provided with torsion system;
Described compression system comprises intermeshing linear slide rail and slide block, described slide rail vertically is fixed on the described frame, the top of described slide block is connected with the pressurised driving device, be provided with pressure transducer between described slide block and the described pressurised driving device, the bottom of described slide block is fixed with radially upper clamping fixture piece;
Described torsion system comprises main shaft, described main shaft is installed on the described frame by main shaft bearing, the lower end of described main shaft with reverse drive unit and be connected, described main shaft and described reversing are provided with torque sensor between the drive unit, the upper end of described main shaft is connected with rotary table, and described rotary table is provided with radially lower clamping fixture piece.
2. the pressure testing machine of turning round according to claim 1 is characterized in that described compression system also comprises displacement measuring device and encoding up/down device.
3. the pressure testing machine of turning round according to claim 2 is characterized in that described torsion system also comprises rotary encoder.
4. the pressure testing machine of turning round according to claim 3, it is characterized in that described pressurised driving device comprises intermeshing leading screw and screw, described screw is fixed on the described frame, the lower end of described leading screw is connected with described slide block, and the upper end of described leading screw is connected with the pressurization servomotor.
5. the pressure testing machine of turning round according to claim 4 is characterized in that, the described drive unit that reverses comprises and reverse servomotor that the lower end of described main shaft is connected with the described servomotor that reverses.
6. the pressure testing machine of turning round according to claim 5 is characterized in that, between described leading screw and the pressurization servomotor and described main shaft and described reversing be respectively equipped with precision speed reduction device between the servomotor.
7. according to each described pressure testing machine of turning round of claim 1 to 6, it is characterized in that, between described radially upper clamping fixture piece and the described radially lower clamping fixture piece rotor bearing of being tested is housed.
8. the pressure testing machine of turning round according to claim 7 is characterized in that, also comprises control system and man-machine interactive system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020152965XU CN201812405U (en) | 2010-04-06 | 2010-04-06 | Torsional pressure tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020152965XU CN201812405U (en) | 2010-04-06 | 2010-04-06 | Torsional pressure tester |
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|---|---|
| CN201812405U true CN201812405U (en) | 2011-04-27 |
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| CN201020152965XU Expired - Fee Related CN201812405U (en) | 2010-04-06 | 2010-04-06 | Torsional pressure tester |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102774509A (en) * | 2012-06-28 | 2012-11-14 | 南京航空航天大学 | Performance test bench for reaction torque device of helicopter |
| CN104280230A (en) * | 2014-09-22 | 2015-01-14 | 株洲时代新材料科技股份有限公司 | Torsion test device and method for air spring |
| CN108639395A (en) * | 2018-07-04 | 2018-10-12 | 中国工程物理研究院总体工程研究所 | Human centrifuge's overload protection arrangement |
| CN110243687A (en) * | 2019-06-06 | 2019-09-17 | 中国人民解放军总参谋部第六十研究所 | A kind of elastic shaft that environment temperature is controllable pressure-bearing-torsion combination experiment system |
| CN113533085A (en) * | 2021-07-01 | 2021-10-22 | 中国航发湖南动力机械研究所 | Helicopter main reducer rotor shaft load loading simulation device |
| CN113702012A (en) * | 2021-08-10 | 2021-11-26 | 杭州应敏科技有限公司 | Mechanical property testing machine for meter box shell |
-
2010
- 2010-04-06 CN CN201020152965XU patent/CN201812405U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102774509A (en) * | 2012-06-28 | 2012-11-14 | 南京航空航天大学 | Performance test bench for reaction torque device of helicopter |
| CN102774509B (en) * | 2012-06-28 | 2014-12-10 | 南京航空航天大学 | Performance test bench for reaction torque device of helicopter |
| CN104280230A (en) * | 2014-09-22 | 2015-01-14 | 株洲时代新材料科技股份有限公司 | Torsion test device and method for air spring |
| CN108639395A (en) * | 2018-07-04 | 2018-10-12 | 中国工程物理研究院总体工程研究所 | Human centrifuge's overload protection arrangement |
| CN110243687A (en) * | 2019-06-06 | 2019-09-17 | 中国人民解放军总参谋部第六十研究所 | A kind of elastic shaft that environment temperature is controllable pressure-bearing-torsion combination experiment system |
| CN110243687B (en) * | 2019-06-06 | 2022-01-07 | 中国人民解放军总参谋部第六十研究所 | Environmental temperature controllable elastic bearing pressure-torsion combined experiment system |
| CN113533085A (en) * | 2021-07-01 | 2021-10-22 | 中国航发湖南动力机械研究所 | Helicopter main reducer rotor shaft load loading simulation device |
| CN113702012A (en) * | 2021-08-10 | 2021-11-26 | 杭州应敏科技有限公司 | Mechanical property testing machine for meter box shell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20110427 Termination date: 20170406 |
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| CF01 | Termination of patent right due to non-payment of annual fee |