CN110411654A - A kind of power-measuring device of torque and the two-parameter synchronous reproduction of revolving speed - Google Patents
A kind of power-measuring device of torque and the two-parameter synchronous reproduction of revolving speed Download PDFInfo
- Publication number
- CN110411654A CN110411654A CN201910705236.8A CN201910705236A CN110411654A CN 110411654 A CN110411654 A CN 110411654A CN 201910705236 A CN201910705236 A CN 201910705236A CN 110411654 A CN110411654 A CN 110411654A
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- torque
- parameter
- main shaft
- revolving speed
- power
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
- G01L25/003—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency for measuring torque
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
- G01L25/006—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency for measuring work or mechanical power or mechanical efficiency
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The power-measuring device of a kind of torque disclosed by the invention and the two-parameter synchronous reproduction of revolving speed, belong to metrological testing technology field, the present invention includes pulse coder, stator, arm lever, counterweight, loading motor, torque sensor, measurand, driving motor.Torque parameter on the one hand can be received using the arm lever and counterweight being fixed on stator, it on the other hand being capable of calibrated torque sensor, rotary speed parameter is obtained using pulse coder, to realize torque and the two-parameter synchronous reproduction measurement of revolving speed, the realtime power of measurand can be calculated.The torque value that the present invention is generated by control counterweight regulation, regulates and controls tachometer value by loading motor and driving motor.The present invention can obtain accurate torque, tach signal under engine operating, have simple and reliable, the high advantage of power parameter accuracy.It is especially applicable to the Testing And Regulating of engine realtime power.
Description
Technical field
The invention belongs to metrological testing technology fields, are related to the power measurement of a kind of torque and the two-parameter synchronous reproduction of revolving speed
Device.
Background technique
Power parameter is most crucial one of the performance parameter of engine, and power-measuring device is engine power calibration
Core equipment, the calibration of country's engine power parameter is by way of being calibrated respectively to torque and rotary speed parameter at present
Come what is completed, the calibration of torque parameter mostly uses greatly the mode for hanging counterweight in arm of force mechanism directly mating to power-measuring device
Torque sensor calibrated, the reinforcing point of calibrated torque is different from the input point position of power-measuring device actual torque,
There are large errors for calibration result.
Summary of the invention
It is insufficient for existing power-measuring device: (1), power-measuring device calibration need respectively to revolving speed and torque parameter into
Row individually calibration, the performance number obtained is not the performance number under real work state；(2), torque sensing in power-measuring device
Device needs are removed to be calibrated using standard torque machine.The function of a kind of torque disclosed by the invention and the two-parameter synchronous reproduction of revolving speed
Rate measuring device technical problems to be solved are: the power-measuring device of a kind of torque and the two-parameter synchronous reproduction of revolving speed is provided,
Torque sensor, the torque of synchronous reproduction engine output and revolving speed can be calibrated on power-measuring device original position, then led to
It crosses and real-time effective power is calculated, be able to ascend the accuracy and test efficiency of power test, objectively and accurately evaluation is tested
The performance of engine, to meet the needs of more and more engine power real time calibrations.
The described synchronous reproduction refer to and meanwhile measure with two calibrated torque, revolving speed parameters, do not need torque is individually removed and pass
Sensor is calibrated.
The purpose of the present invention is what is be achieved through the following technical solutions.
The power-measuring device of a kind of torque disclosed by the invention and the two-parameter synchronous reproduction of revolving speed, including pulse code
Device, stator, arm lever, counterweight, loading motor, torque sensor, measurand, driving motor.
Pulse coder is fixedly mounted on loading motor main shaft；
Pulse coder is mounted on loading motor main shaft, and main shaft synchronous rotary, for obtaining the revolving speed of main shaft in real time
n。
Stator is the shell of loading motor, and arm lever horizontal symmetrical is connected on the axis of stator, arm lever lower end
Vertical carry counterweight；
There are following relationships for stator, arm lever and the counterweight:
Arm lever one end is fixedly connected with stator, and one end carry counterweight makes stator generate torque M, and arm lever length L is solid
It is fixed constant, adjustable torque parameter is generated by adjusting counterweight weight m, meets following formula:
T=M=mgL (1)
T is the torque acted on main shaft, and M is the torque acted on stator, and g is local gravitational acceleration.
Preferably, being set as g=9.80665m/s2。
Torque sensor, measurand, driving motor by flexible coupling be mounted on on the same axis of loading motor；
By the torque calibrated in situ torque sensor applied to stator, the torque sensor by calibration can be in main shaft
When rotation, the torque parameter T of main shaft is read in real time.
The power parameter P of measurand is to calculate acquisition indirectly and to torque T, revolving speed n parameter measurement, meet as
Lower formula:
In formula, by accurately realizing synchronous in situ measurement to torque T, revolving speed n, accurate real-time effective power is just obtained
Value.
The working method of a kind of torque disclosed by the invention and the power-measuring device of the two-parameter synchronous reproduction of revolving speed, is based on
A kind of torque is realized with the power-measuring device of the two-parameter synchronous reproduction of revolving speed, is included the following steps:
Step 1: loading motor, torque sensor, measurand, driving motor are installed by flexible coupling and load electricity
Owner's axis is kept on the same axis；
Step 2: loading motor drives main shaft rotation；
Step 3: pulse coder is fixed on main shaft end and monitors rotary speed parameter by pulse coder when main shaft rotates
n；
Step 4: counterweight is loaded on arm lever can generate torque parameter, and can be as standard value to torque sensing
Device and measurand carry out torque calibration.
Step 5:, can by the torque sensor of calibration by the torque calibrated in situ torque sensor applied to stator
In main shaft rotation, the torque parameter T of main shaft is read in real time.
Step 6: it when main shaft rotates, synchronizes to obtain torque T and revolving speed n is two-parameter, be calculated by formula (2) has in real time
Imitate power P.
The pulse coder working method is the machines such as angular displacement, angular speed for being rotated main shaft by photoelectric conversion
Tool amount is converted into corresponding electric pulse with digital output, to calculate current rotating speed parameter and negative-feedback.
The utility model has the advantages that
1, the power-measuring device of a kind of torque disclosed by the invention and the two-parameter synchronous reproduction of revolving speed, using the arm of force and weight
The form that code is combined with loading motor, can be realized the working condition i.e. calibrated in situ of align mode of torque sensor, than
Existing off-line calibration mode is more rationally accurate.
2, existing power-measuring device calibration needs to carry out revolving speed and the two-parameter calibration of torque respectively, disclosed by the invention
A kind of power-measuring device of torque and the two-parameter synchronous reproduction of revolving speed, can directly synchronize real time calibration revolving speed in situ and torque
Two-parameter, working efficiency is higher；
3, the power-measuring device of a kind of torque disclosed by the invention and the two-parameter synchronous reproduction of revolving speed can synchronize in real time
The revolving speed and torque parameter calibrated are obtained, the calculating of real-time effective power is carried out, is calculated than existing effective power value more quasi-
It is really credible；
4, the power-measuring device of a kind of torque disclosed by the invention and the two-parameter synchronous reproduction of revolving speed, structure are simply steady
It is fixed, be conducive to later maintenance and replacement.
Detailed description of the invention
Fig. 1 is a kind of power-measuring device knot of torque and the two-parameter synchronous reproduction of revolving speed in the specific real-time mode of the present invention
Structure schematic diagram；
Wherein, 1-pulse coder, 2-stators, 3-arm levers, 4-counterweights, 5-loading motors, 6-torques pass
Sensor, 7-measurands, 8-driving motors.
Fig. 2 is torque and the two-parameter synchro measure flow chart of revolving speed.
Specific embodiment
The embodiment of the present invention is described in detail with reference to the accompanying drawing, before the present embodiment is with technical solution of the present invention
It mentions, the detailed implementation method and specific operation process are given.
Embodiment 1:
As shown in Figure 1, a kind of power-measuring device of torque and the two-parameter synchronous reproduction of revolving speed disclosed in the present embodiment, packet
Include pulse coder 1, stator 2, arm lever 3, counterweight 4, loading motor 5, torque sensor 6, measurand 7, driving motor
8。
Pulse coder 1 is fixedly mounted on 5 main shaft of loading motor；
The pulse coder 1 in loading motor 5, there are following relationships:
Pulse coder 1 is mounted on 5 main shaft of loading motor, and main shaft synchronous rotary, for obtaining turning for main shaft in real time
Fast n.
Stator 2 is the shell of loading motor 5, and 3 horizontal symmetrical of arm lever is connected on the axis of stator 2, arm lever 3
The vertical carry counterweight 4 in lower end；
There are following relationships for stator 2, arm lever 3 and the counterweight 4:
3 one end of arm lever is fixedly connected with stator 2, and one end carry counterweight 4 makes stator 2 generate torque M, and arm lever 3 is long
Degree L immobilizes, and generates adjustable torque parameter by adjusting 4 weight m of counterweight, meets following formula:
T=M=mgL (1)
T is the torque acted on main shaft, and M is the torque of effect on the stator 2, and g is local gravitational acceleration, is set as
G=9.80665m/s2。
Torque sensor 6, measurand 7, driving motor 8 are mounted on and the same axis of loading motor 5 by flexible coupling
On line；
There are following relationships for the torque sensor 6:
By the torque calibrated in situ torque sensor 6 applied to stator 2, torque sensor 6 by calibration can be
When main shaft rotates, the torque parameter T of main shaft is read in real time.
The power parameter P of measurand 7 is to calculate acquisition indirectly and to torque T, revolving speed n parameter measurement, is met
Following formula:
In formula, by accurately realizing synchronous in situ measurement to torque T, revolving speed n, accurate real-time effective power is just obtained
Value.
As shown in Fig. 2, a kind of torque disclosed in the present embodiment and the power-measuring device of the two-parameter synchronous reproduction of revolving speed
Working method includes the following steps:
Step 1: loading motor 5, torque sensor 6, measurand 7, driving motor 8 are installed and are added by flexible coupling
5 main shaft of motor is carried to keep on the same axis；
Step 2: loading motor 5 drives main shaft rotation；
In aforesaid operations, loading motor 5 drives main shaft rotation, revolving speed n=5000rpm.
Step 3: pulse coder 1 is fixed on main shaft end can monitor rotary speed parameter n, obtain n=when main shaft rotates
5000rpm；
Step 4: loading counterweight 4 on arm lever 3 can produce torque parameter, and as standard value to torque sensor
6 and measurand 7 carry out torque calibration.
In aforesaid operations, the calibration to torque sensor 6 is completed, 6 indices of torque sensor are normal.
Step 5: when main shaft rotates, torque sensor 6 can directly monitor torque parameter T, obtain main shaft torque T=
500N·m；
Step 6: when main shaft rotates, synchronizing to obtain torque T and revolving speed n be two-parameter, is calculated in real time effectively according to (2) formula
Power P=261.8kW.
Above-described specific descriptions have carried out further specifically the purpose of invention, technical scheme and beneficial effects
It is bright, it should be understood that the above is only a specific embodiment of the present invention, the protection model being not intended to limit the present invention
It encloses, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the present invention
Protection scope within.
Claims (5)
1. the power-measuring device of a kind of torque and the two-parameter synchronous reproduction of revolving speed, it is characterised in that: including pulse coder
(1), stator (2), arm lever (3), counterweight (4), loading motor (5), torque sensor (6), measurand (7), driving electricity
Machine (8)；
Pulse coder (1) is fixedly mounted on loading motor (5) main shaft；
Pulse coder (1) is mounted on loading motor (5) main shaft, and main shaft synchronous rotary, for obtaining turning for main shaft in real time
Fast n；
Stator (2) is the shell of loading motor (5), and arm lever (3) horizontal symmetrical is connected on the axis of stator (2), the arm of force
The vertical carry counterweight (4) in lever (3) lower end；
Arm lever (3) one end is fixedly connected stator (2), one end carry counterweight (4), and stator (2) is made to generate torque M；
Arm lever (3) length L immobilizes, and generates adjustable torque parameter by adjusting counterweight (4) weight m；
T is the torque acted on main shaft, and M is the torque acted on stator (2), and g is local gravitational acceleration；
Torque sensor (6), measurand (7), driving motor (8) are mounted on same with loading motor (5) by flexible coupling
On one axis；
By the torque calibrated in situ torque sensor (6) applied to stator (2), the torque sensor (6) by calibration can
In main shaft rotation, the torque parameter T of main shaft is read in real time；
The power parameter P of measurand (7) is to calculate acquisition indirectly and to torque T, revolving speed n parameter measurement.
2. a kind of power-measuring device of torque and the two-parameter synchronous reproduction of revolving speed as described in claim 1, it is characterised in that:
Adjustable torque parameter is generated by adjusting counterweight (4) weight m, meets following formula:
T=M=mgL (1)
3. a kind of power-measuring device of torque and the two-parameter synchronous reproduction of revolving speed as claimed in claim 2, it is characterised in that:
The power parameter P of measurand (7) is to calculate acquisition indirectly and to torque T, revolving speed n parameter measurement, meets following public affairs
Formula:
In formula, by accurately realizing synchronous in situ measurement to torque T, revolving speed n, accurate effective power value in real time is just obtained.
4. the power-measuring device of a kind of torque as claimed in claim 1,2 or 3 and the two-parameter synchronous reproduction of revolving speed, feature
Be: working method includes the following steps,
Step 1: loading motor (5), torque sensor (6), measurand (7), driving motor (8) are installed by flexible coupling
It is kept on the same axis with loading motor (5) main shaft；
Step 2: loading motor (5) drives main shaft rotation；
Step 3: pulse coder (1) is fixed on main shaft end, when main shaft rotates, monitors revolving speed ginseng by pulse coder (1)
Number n；
Step 4: counterweight (4) are loaded on arm lever (3) can generate torque parameter, and can pass as standard value to torque
Sensor (6) and measurand (7) carry out torque calibration；
Step 5: by the torque calibrated in situ torque sensor (6) applied to stator (2), by the torque sensor of calibration
(6) the torque parameter T of main shaft can be read in real time when main shaft rotates；
Step 6: it when main shaft rotates, synchronizes to obtain torque T and revolving speed n is two-parameter, real-time Effective power is calculated by formula (2)
Rate P.
5. a kind of power-measuring device of torque and the two-parameter synchronous reproduction of revolving speed as claimed in claim 4, it is characterised in that:
Described pulse coder (1) working method is that the mechanical quantities such as angular displacement, angular speed for being rotated main shaft by photoelectric conversion turn
Corresponding electric pulse is changed into digital output, to calculate current rotating speed parameter and negative-feedback.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910705236.8A CN110411654A (en) | 2019-08-01 | 2019-08-01 | A kind of power-measuring device of torque and the two-parameter synchronous reproduction of revolving speed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910705236.8A CN110411654A (en) | 2019-08-01 | 2019-08-01 | A kind of power-measuring device of torque and the two-parameter synchronous reproduction of revolving speed |
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| Publication Number | Publication Date |
|---|---|
| CN110411654A true CN110411654A (en) | 2019-11-05 |
Family
ID=68364878
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910705236.8A Pending CN110411654A (en) | 2019-08-01 | 2019-08-01 | A kind of power-measuring device of torque and the two-parameter synchronous reproduction of revolving speed |
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| Country | Link |
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| CN (1) | CN110411654A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114441078A (en) * | 2021-12-22 | 2022-05-06 | 中国航空工业集团公司北京长城计量测试技术研究所 | Online torque measurement structure and online torque measurement method of power measurement device |
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|---|---|---|---|---|
| CN1057108A (en) * | 1990-06-04 | 1991-12-18 | 航空航天工业部第一研究院第十三研究所 | Balance type motor torque tester |
| CN201974439U (en) * | 2011-01-25 | 2011-09-14 | 王琨 | Rotating speed and moment measurement instrument |
| CN102507060A (en) * | 2011-10-13 | 2012-06-20 | 西北工业大学 | Torque calibration device used for passive motor-driven loading system |
| CN102944344A (en) * | 2012-11-27 | 2013-02-27 | 哈尔滨工业大学 | Torque motor torque fluctuation coefficient detector and detecting method |
| CN103776584A (en) * | 2014-02-11 | 2014-05-07 | 重庆建设工业(集团)有限责任公司 | Torque and rotation speed standard machine |
| CN105424245A (en) * | 2015-12-17 | 2016-03-23 | 东莞市秦智工业设计有限公司 | Torque and rotation speed measurement device of anti-falling safety device |
| CN109765001A (en) * | 2019-03-05 | 2019-05-17 | 安徽合力股份有限公司 | A kind of torque calibration system and its scaling method of torque and speed sensors |
-
2019
- 2019-08-01 CN CN201910705236.8A patent/CN110411654A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057108A (en) * | 1990-06-04 | 1991-12-18 | 航空航天工业部第一研究院第十三研究所 | Balance type motor torque tester |
| CN201974439U (en) * | 2011-01-25 | 2011-09-14 | 王琨 | Rotating speed and moment measurement instrument |
| CN102507060A (en) * | 2011-10-13 | 2012-06-20 | 西北工业大学 | Torque calibration device used for passive motor-driven loading system |
| CN102944344A (en) * | 2012-11-27 | 2013-02-27 | 哈尔滨工业大学 | Torque motor torque fluctuation coefficient detector and detecting method |
| CN103776584A (en) * | 2014-02-11 | 2014-05-07 | 重庆建设工业(集团)有限责任公司 | Torque and rotation speed standard machine |
| CN105424245A (en) * | 2015-12-17 | 2016-03-23 | 东莞市秦智工业设计有限公司 | Torque and rotation speed measurement device of anti-falling safety device |
| CN109765001A (en) * | 2019-03-05 | 2019-05-17 | 安徽合力股份有限公司 | A kind of torque calibration system and its scaling method of torque and speed sensors |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114441078A (en) * | 2021-12-22 | 2022-05-06 | 中国航空工业集团公司北京长城计量测试技术研究所 | Online torque measurement structure and online torque measurement method of power measurement device |
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Application publication date: 20191105 |