CN203705120U - Auxiliary tool for calibrating parameter of test bench - Google Patents
Auxiliary tool for calibrating parameter of test bench Download PDFInfo
- Publication number
- CN203705120U CN203705120U CN201420095479.7U CN201420095479U CN203705120U CN 203705120 U CN203705120 U CN 203705120U CN 201420095479 U CN201420095479 U CN 201420095479U CN 203705120 U CN203705120 U CN 203705120U
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- engine
- torque sensor
- test bench
- torque
- data
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Abstract
The utility model discloses an auxiliary tool for calibrating a parameter of a test bench. The test bench can be adopted in measurement of output torque of an engine as well as data display. The auxiliary tool comprises a torque sensor which is fixedly installed at an edge of a flywheel housing of a standard engine and used for measuring a dynamic torque value of the engine and a data display which is connected with the torque sensor and used for displaying a measured value of the torque sensor, wherein the measured value is used to be compared with display data of the test bench so as to calibrate the test bench. By the adoption of the auxiliary tool, online dynamic measurement of performance of the engine can be achieved. According to the measurement data, the test bench is calibrated. Thus, the engine's dynamic torque measurement data of the test bench is more accurate, and data quantity transmission is more scientific.
Description
Technical field
The utility model relates to engine rig test field, particularly a kind of auxiliary mould of calibration testing stand parameter.
Background technology
In engine thermal test break-in standardising process, use heat examination stand to measure the dynamic parameters of engine, check engine performance whether to reach dispatch from the factory technical requirement and specification, output torque, the power of hydraulic dynamometer to engine is installed on testboard bay and measures.The principle of work of dynamometer machine: engine drives the rotor assembly synchronous rotary on dynamometer main shaft by shaft coupling, stir the water of working chamber, due to the effect of centrifugal force that rotor produces and rotor pit, water produces strong water turbulence between side shell and rotor pit, shell is applied to rotating torque, make the torque of engine pass to shell by rotor, the power arm being contained on case body will be along with rotation, thereby braking moment is passed to the pull pressure sensor being connected with brake arm, shown the size of its braking moment by electronic digital display apparatus.The rotating speed of dynamometer machine can be recorded by speed probe simultaneously, on electronical display instrument, shows.
Above-mentioned heat examination stand needs dynamometer machine to calibrate before use, at present, according to " Chinese people's republicanism is national metrological verification regulations JJG653-2003 power measurement arrangement altogether ", heat examination stand dynamometer machine is carried out to on-the-spot static calibration, its method is to adopt the arm of force, suspension hook, pallet and counterweight to calibrate, the change in displacement of the calibration arm of force, geometric sense size and the impact of site environment factor.This static calibration is unstable or error is large, just the stability of dynamometer machine has been done to preliminary evaluation, is sometimes difficult to judge that moment of torsion slippages is how many, and whether measured value is accurate, causes the dynamic torque of engine, power measurements not accurate enough, reliable.
Utility model content
The utility model is in order to overcome defect in above-mentioned prior art, a kind of auxiliary mould of calibration testing stand parameter is provided, the online dynamic data of the engine of measuring according to this pick-up unit is calibrated testboard bay, make testboard bay more accurate to the dynamic torque measurement data of engine, data transmission of quantity value is more scientific.
For achieving the above object, the utility model provides a kind of auxiliary mould of calibration testing stand parameter, this testboard bay can be gone forward side by side line number according to the show to the output torque measurement of engine, auxiliary mould comprises: torque sensor, and it is fixedly mounted on the dynamic torque value that is used for measuring this engine on the edge of bell housing of engine; Data display equipment, it is connected the measured value for showing torque sensor with torque sensor, and measured value is used for carrying out recently testboard bay being calibrated with the demonstration data of testboard bay.
In technique scheme, torque sensor has mounting flange, and mounting flange is fixed by the edge of bolt and bell housing.
Compared with prior art, the utlity model has following beneficial effect: by adopting high-precision torque sensor to be arranged on the bell housing of engine, can carry out on-line dynamic measurement to the parameter such as moment of torsion, power of engine, carry out Correcting Test Stand frame recently according to the hydraulic dynamometer data displayed value on the measured value of this torque sensor and testboard bay, measured value is more accurate, has improved the authenticity of measured value.
Brief description of the drawings
Fig. 1 is that torque sensor of the present utility model is arranged on the front view on bell housing;
Fig. 2 is that torque sensor of the present utility model is arranged on the left view on bell housing;
Fig. 3 is that torque sensor of the present utility model is arranged on the vertical view on bell housing.
Mark the following drawings mark thereon by reference to the accompanying drawings:
1-bell housing, 2-torque sensor.
Embodiment
Below in conjunction with accompanying drawing, an embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model is not subject to the restriction of embodiment.
The auxiliary mould of calibration testing stand parameter of the present utility model passes through the parameter such as moment of torsion, power of on-line dynamic measurement engine as normal data, can check the testboard bay of engine whether qualified, the parameter of testboard bay is calibrated simultaneously, guarantee that the data in engine kinetic measurement process are more accurate, more reliable, improve the authenticity of measured value.
As shown in Figure 1 to Figure 3, the auxiliary mould of calibration testing stand parameter of the present utility model comprises torque sensor 2 and data display equipment (not shown), torque sensor 2 is fixedly mounted on the edge of the bell housing 1 of engine to be measured, and torque sensor 2 is used for measuring the dynamic torque value of engine.Data display equipment is connected the measured value for showing torque sensor with torque sensor, data display equipment is specifically connected with the binding post 22 that is located at torque sensor 2 by data line, torque sensor 2 has mounting flange (unmarked in figure), mounting flange is fixed by bolt 21 and the edge of bell housing 1, and torque sensor 2 can be measured dynamic torque value, the tachometer value of engine and show by data display equipment.Wherein, torque sensor 2 is high-precision sensor, can select the T10F flange form torque sensor (precision 0.1%) of German HBM, and the installation method of torque sensor 2 and position, because type changes, make more accurate stable of measurement effect.
In the time of concrete calibration, this torque sensor is arranged on the flywheel shell of engine of stable performance, the engine of this stable performance is measured as model engine, and the moment of torsion of measurement, magnitude of power are as the correlation data of standard.This model engine that torque sensor is installed is connected with the hydraulic dynamometer on testboard bay, according to engine calibration point, power points is set engine speed, moment of torsion, the display device of testboard bay can be to the moment of torsion of hydraulic dynamometer, power measurement values shows, by the moment of torsion of this testboard bay, the moment of torsion displayed value of power displayed value and torque sensor contrasts, according to the difference of above-mentioned numerical value, the hydraulic dynamometer of testboard bay is adjusted, and then reach the measurement parameter of calibration testing stand, make the dynamic torque of testboard bay to engine after calibration, the parameters such as power are measured accurately, improve the authenticity of measured value.
Be below the measurement result of concrete certain # testboard bay of calibration:
Find out from upper table, the hydraulic dynamometer of testboard bay and torque sensor do not have difference to the tachometric survey of engine.The measurement of the output torque to engine, the measured value of hydraulic dynamometer is less than normal, according to data in table, hydraulic dynamometer is adjusted, make its measured value be tending towards the measured value of torque sensor, guarantee that error is not more than 1%, and then by the testboard bay after calibration when engine is measured, data are more accurate, more reliable, improve the authenticity of measured value.
Disclosed is above only specific embodiment of the utility model, and still, the utility model is not limited thereto, and the changes that any person skilled in the art can think of all should fall into protection domain of the present utility model.
Claims (2)
1. an auxiliary mould for calibration testing stand parameter, this testboard bay can be gone forward side by side line number according to the show to the output torque measurement of engine, it is characterized in that, and described auxiliary mould comprises:
Torque sensor, it is fixedly mounted on the dynamic torque value that is used for measuring this engine on the edge of bell housing of engine;
Data display equipment, it is connected the measured value for showing described torque sensor with described torque sensor, and described measured value is used for carrying out recently described testboard bay being calibrated with the demonstration data of described testboard bay.
2. the auxiliary mould of calibration testing stand parameter according to claim 1, is characterized in that, described torque sensor has mounting flange, and described mounting flange is fixed by the edge of bolt and described bell housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420095479.7U CN203705120U (en) | 2014-03-04 | 2014-03-04 | Auxiliary tool for calibrating parameter of test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420095479.7U CN203705120U (en) | 2014-03-04 | 2014-03-04 | Auxiliary tool for calibrating parameter of test bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203705120U true CN203705120U (en) | 2014-07-09 |
Family
ID=51055542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420095479.7U Expired - Fee Related CN203705120U (en) | 2014-03-04 | 2014-03-04 | Auxiliary tool for calibrating parameter of test bench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203705120U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103808455A (en) * | 2014-03-04 | 2014-05-21 | 广西玉柴机器股份有限公司 | Method for correcting parameters of test bench and assistant fixture |
| CN107687950A (en) * | 2017-09-30 | 2018-02-13 | 广西玉柴机器股份有限公司 | A kind of convenient detection method and device of load sensor dynamic property |
| CN108979972A (en) * | 2017-05-30 | 2018-12-11 | Gtm测量有限责任公司 | The method and cabin test platform of the calibration of measuring device for cabin test platform |
| CN111537141A (en) * | 2020-05-22 | 2020-08-14 | 中国船舶重工集团公司第七0三研究所 | Calibration method of three-point support hydraulic dynamometer |
| CN112197894A (en) * | 2020-10-15 | 2021-01-08 | 安徽江淮汽车集团股份有限公司 | Method and system for acquiring average efficiency of gearbox based on whole vehicle |
-
2014
- 2014-03-04 CN CN201420095479.7U patent/CN203705120U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103808455A (en) * | 2014-03-04 | 2014-05-21 | 广西玉柴机器股份有限公司 | Method for correcting parameters of test bench and assistant fixture |
| CN108979972A (en) * | 2017-05-30 | 2018-12-11 | Gtm测量有限责任公司 | The method and cabin test platform of the calibration of measuring device for cabin test platform |
| CN107687950A (en) * | 2017-09-30 | 2018-02-13 | 广西玉柴机器股份有限公司 | A kind of convenient detection method and device of load sensor dynamic property |
| CN111537141A (en) * | 2020-05-22 | 2020-08-14 | 中国船舶重工集团公司第七0三研究所 | Calibration method of three-point support hydraulic dynamometer |
| CN111537141B (en) * | 2020-05-22 | 2021-06-22 | 中国船舶重工集团公司第七0三研究所 | Calibration method of three-point support hydraulic dynamometer |
| CN112197894A (en) * | 2020-10-15 | 2021-01-08 | 安徽江淮汽车集团股份有限公司 | Method and system for acquiring average efficiency of gearbox based on whole vehicle |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20180304 |