CN1082711A - Worm drive series power measurement device and method - Google Patents
Worm drive series power measurement device and method Download PDFInfo
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- CN1082711A CN1082711A CN 92108907 CN92108907A CN1082711A CN 1082711 A CN1082711 A CN 1082711A CN 92108907 CN92108907 CN 92108907 CN 92108907 A CN92108907 A CN 92108907A CN 1082711 A CN1082711 A CN 1082711A
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Abstract
The present invention is a kind of gear drive test unit and worm drive gear series reducer power meter assay method.
The structure of test unit is by the adjustable speed drive motor, the revolution torque sensor, and the revolution torque measurer, speed-increasing gear, variator, adjustable speed load motor and electromagnetic clutch are formed.
Measure testing efficiency with test unit of the present invention, progressively formulate new power meter, efficient table successively with four formula of the present invention and four coefficients again.
Formulate power meter, efficient table with the present invention, expense is low, and the time is short.
Description
The invention belongs to gear power, the efficiency measurement technology can be used to measure the power and the efficient table of enveloping worm gearing speed-reducer series of products.
Usually measure the power and the efficient of worm drive speed reduction unit, all be to use the measuring equipment separate unit to measure one by one, the method that the Soviet Union's 637738 patents propose, also can only improve measuring accuracy, measuring object or separate unit, measure as series of products are still pursued platform, and then formulate the power meter of series of products, efficient table, not only testing expenses are many, time is long, and power meter, when the efficient table need update, be difficult to accomplish accurately and timely, do not measure even do not adopt by platform, change choosing at interval into and survey, required expense is still very surprising.Also difficult satisfied urgent need of the length of minute, in October, 1980 Ministry of Metallurgical Industry's device fabrication general bureau for example, plan once asks the seriation standard of 8 institutes and 3 the discussion SG-71 of manufacturing plant worm gear pair products and the efficient counting rate meter of boasting of one's bit of contribution to measure the centre distance series specification of product, formulate 16 kinds altogether, 10 kinds of speed ratio series, 13 kinds of revolution series adopt the survey scheme of selecting at interval, selected center is in the series 125,250,315 three centre distance, speed ratio series 10,25,50, even by this scheme, testing expense still needs nearly 1,000,000,2 years time, also will organize three test units to work in concert and just can finish, the back does not have the source because of funds, lies on the table.
At present, the domestic unit that has, utilize existing power meter, only choosing tries one of them (or several) data, obtains the ratio of change, other data that will have then in the power meter all multiply by identical ratio, list new power meter, yet, for different centre distance, speed ratio and rotating speed, the power of worm drive speed reduction unit and efficiency data, the amplitude of variation are incomplete the same! Power meter of obtaining like this and efficient table are difficult to realistic.
Costly in order to overcome above-mentioned existing enveloping worm gearing speed-reducer series power measurement, the shortcoming that the time is oversize the objective of the invention is to propose a kind of most economical simple and direct rapid and reliable serial power measurement method.
For the determination techniques scheme that realizes this purpose is, according to the thermal power principle, a kind of test unit that utilizes the present invention to design, measuring the efficiency data of arbitrary specification centre distance product, then, is basic data with these data, in conjunction with authoritative with reference to power meter, the efficient table by the method that the present invention proposes, is formulated power, the efficient of other specification product in the product line (centre distance, speed ratio, revolution).Finally, list the tables of data of efficient and power.
Be to measure worm drive gear series reducer efficient, specialized designs of the present invention adjustable speed electric power sealing worm drive testing table (see figure 1), the structure of this machine is:
Tested worm drive speed reduction unit 3 is dragged by drive motor 1, for satisfying the different revolutions of tested speed reduction unit, the revolution of drive motor 1 can be according to the testing requirements speed governing, the input revolution of worm drive speed reduction unit 3 and moment values are measured by input revolution torque sensor 2, and measurement result is delivered to revolution torque measurer 9 displayed record, the output revolutions torque is measured by output revolutions torque sensor 4, and measurement result passed to output revolutions torque measurer 10 displayed record, load during test is to use generator as with the adjustable speed load motor 8 of drive motor 1 same model, according to the test load difference, adjust generation load, and feedback electrical network, for satisfying, speed-increasing gear 5 and variator 6 are housed before load motor 8, and connect with electromagnetic clutch 7 by the different speed ratios of test worm drive speed reduction unit 3.
Use test unit of the present invention, by measuring centre distance a
o, speed ratio i
oEach revolution n
nInput torque M
1With output torque M
2, the common-used formula below the substitution again:
Can calculate testing efficiency, with calculate efficiency value be listed as into table, promptly be centre distance a
o, speed ratio i
oEach revolution n
nTesting efficiency
Table.
Method step of the present invention:
One, selected with reference to power meter, the efficient table.
The straight-side profile enveloping worm transmission standard 441 that the selected U.S. gear fabricator association (AGMA) of the present invention formulates, efficient table of recommending in 03 and the power meter of Worktools Inc. of appended Michigan (Michigan Tool Co.Let.), through the presentation of results of reality use for many years, the efficient of this standard formulation data in the counting rate meter of boasting of one's bit of contribution, reliable and practical, have certain authority; Also have, the enveloping worm gearing speed-reducer power meter that the present invention will provide, the efficient table selected belongs to enveloping worm transmission type together with reference to power meter efficient table with above-mentioned, is rational so select this authoritative numerical table.
Two, at centre distance series a
n, speed ratio i
nIn an optional suitable centre distance a
o, speed ratio i
oProduct, test out each revolution n in the revolution series
nEfficient claim testing efficiency
Be listed as into table one.
Three, utilize the testing efficiency of table one
, in conjunction with same centre distance a in the counting rate meter of boasting of one's bit of contribution with reference to efficient
o, speed ratio i
oEach revolution n in the revolution series
nEfficient, performance number is by following formula＜1〉determine centre distance a
o, speed ratio i
oEach revolution n in the revolution series
nFormulation power
In the formula
In the reference power meter, the centre distance a that finds
o, speed ratio i
oEach revolution n in the revolution series
nPower α claim that first efficiency factor is by formula＜2 derive
In the formula
By the centre distance a that finds in the reference efficient table
o, speed ratio i
oEach revolution n in the revolution series
nEfficient
With calculate numerical value be listed as into centre distance a
o, speed ratio i
oEach revolution n
nFormulation power meter two.
Four, utilize the formulation power of table two
In conjunction with reference in the power meter, centre distance a
o, each speed ratio i
o, each revolution n
nPerformance number by following formula＜3 determine centre distance a
o, each speed ratio i
n, each revolution n
nFormulation power
In the formula
Cotype (1) definition
β claims first power coefficient to be derived by formula (4)
In the formula
With calculate value be listed as into centre distance a
o, each revolution n
n, each speed ratio i
nFormulation power meter three.
Five, utilize the formulation power of table three
In conjunction with reference to power, in the efficient table, centre distance a
o, each speed ratio i
n, each revolution n
nThe power efficiency value by following formula＜5 determine centre distance a
o, each speed ratio i
nEach revolution n
nFormulation efficient table
γ claims that second efficiency factor is by formula＜6〉derive
In the formula
Cotype (4) definition
With calculate value be listed as into centre distance a
o, each revolution n
n, each speed ratio i
nFormulation efficient table four.
Six, utilize the formulation efficient of table four
In conjunction with reference in the power meter, centre distance a
o, each speed ratio i
n, each revolution n
nThe power efficiency value is by following formula＜7〉determine other centre distance a
n, each speed ratio i
n, each revolution n
nFormulation power
In the formula
The centre distance a that finds by the reference power meter
nEach speed ratio i
nEach revolution n
nPower
δ
QClaim second power coefficient to derive by formula (8)
Cotype＜5〉definition
To calculate value be listed as into centre distance a
o, each revolution n
n, each speed ratio i
nFormulation power meter five.
Adopt the present invention to measure the enveloping worm gear series reducer product efficiency counting rate meter of boasting of one's bit of contribution, can realize significantly saving the mensuration expense; And quickening mensuration progress, as previously mentioned, as with meeting in October, 1980 about formulating the efficient table of planar double-enveloping worm transmission (SG-71 type worm gear pair) gear series reducer product, power meter is proposed the testing expenses budget, target advance and input strength are relatively, adopt the present invention can save the mensuration expense more than 90%, the time was less than 1 year, and only test unit of need can independently finish.
Annotate: each value is general in centre distance a=100-200 millimeter scope in the table four, and to 50 millimeters, each value deducts 3% to centre distance from table four below 100 millimeters, and centre distance a=250 millimeter is above to 700 millimeters, and each value adds 2% in table four.
Formulate power
Centre distance an table five
i
1A
an1B
an1C
an1- - - - - - -
i
2A
an2B
an2C
an2- - - - - - -
i
3A
an3B
an3C
an3- - - - - - -
i
4A
an4B
an4C
an4- - - - - - -
i
5A
an5B
an5C
an5- - - - - - -
Embodiment:, introduce below the present invention and use Apparatus and method for of the present invention, the power meter of mensuration planar double-enveloping worm transmission (SG-71 type worm gear pair) speed reduction unit centre distance a=120 millimeter and centre distance a=100 millimeter, efficient table as embodiment.
One, selected U.S. gear fabricator association (AGMA) standard 441.03 efficient tables and Worktools Inc. of appended Michigan (Michigan Tool Co.Let.) power meter are with reference to the efficient power meter.
Two, test center is apart from the a=120 millimeter, speed ratio i=25, the efficient of each revolution in the revolution series
Testing efficiency
A=120 i=25 table one
N rev/mins 200 300 400 500 600 750 1,000 1500
η% 77 79 82 82 82 84 84 84
Three, determine centre distance a=120 millimeter, speed ratio i=25, the formulation power of each revolution in the revolution series
The first efficiency factor α
N rev/mins 200 300 400 500 600 750 1,000 1500
α 1.0869 1.0952 1.0555 1.0555 1.0555 1.0625 1 1
Formulate power
(kw) a=120 millimeter table three
N rev/mins 200 300 400 500 600 750 1,000 1500
Four, determine centre distance a=120 millimeter, other each speed ratio i in the speed ratio series
nEach revolution n in the revolution series
nFormulation power
The first power coefficient β a=120 millimeter table four
10 0.434 0.442 0.444 0.447 0.448 0.449 0.45 0.45
15 0.617 0.617 0.622 0.625 0.616 0.627 0.615 0.626
20 0.805 0.73 0.88 0.807 0.806 0.828 0.807 0.817
30 1.19 1.189 1.192 1.192 1.19 1.19 1.192 1.19
40 1.58 1.58 1.58 1.58 1.58 1.58 1.578 1.578
50 1.966 1.963 1.97 1.966 1.966 1.962 1.967 1.966
Formulate power W
120-in Nn(KW) a=120 millimeter table five
200 300 400 500 600 750 1000 1500
10 4.33 5.93 7.02 8.15 9.09 11 11.76 14.41
15 3.05 4.25 5 5.84 6.61 7.86 8.6 10.37
20 2.34 3.6 3.54 4.53 5.06 5.97 6.56 7.94
30 1.58 2.2 2.62 3.06 3.42 4.15 4.44 5.45
40 1.19 1.66 1.97 2.31 2.57 3.13 3.35 4.11
50 0.96 1.34 1.59 1.86 2.07 2.52 2.69 3.3
Five, determine centre distance a=120 millimeter, other each speed ratio i in the speed ratio series
nOther each revolution n in the series turn
nFormulation efficient
The second efficiency factor γ table six
200 300 400 500 600 750 1000 1500
10 0.1382 0.1278 0.1232 0.1230 0.1230 0.1034 0.1 0.1
15 0.1749 0.1644 0.1423 0.1420 0.1420 0.1227 0.12 0.12
20 0.2119 0.2002 0.1608 0.1606 0.1608 0.1601 0.16 0.15
30 0.2762 0.2557 0.2366 0.2367 0.2370 0.1977 0.2 0.2
40 0.3403 0.3007 0.2653 0.2648 0.2656 0.2353 0.24 0.24
50 0.2692 0.3283 0.2833 0.2834 0.2840 0.2636 0.27 0.27
Determination efficiency η
120-in NnA=120 millimeter table seven
10 86 87 87 87 87 89 90 90
15 83 84 86 86 86 88 88 88
20 79 80 84 84 84 84 84 85
30 72 74 76 76 76 80 80 80
40 66 70 73 73 73 76 76 76
50 63 67 71 71 71 73 73 73
Six, determine in the centre distance series centre distance a=100 millimeter, each speed ratio i in the speed ratio series
n, each revolution n in the revolution series
nFormulation power
The second power coefficient δ Q table eight
10 1.071 1.077 1 1 1 1 1 1
15 1.117 1.125 1.071 1.071 1.071 1.166 1 1
20 1.095 1.1 1.063 1.063 1.063 1.063 1 1
30 1.071 1.077 1.042 1.042 1.042 1.1 1 1
40 1.088 1.1 1.037 1.037 1.037 1.042 1 1
50 1.081 1.091 1.034 1.034 1.034 1.037 1 1
Formulate power
(KW) a=100 millimeter table nine
200 300 400 500 600 750 1000 1500
10 2.47 3.43 3.96 4.62 4.93 6.29 7.17 8.89
15 1.85 2.58 3 3.53 3.97 5.28 5.16 6.34
20 1.38 1.91 2.30 2.66 3.02 3.67 3.96 4.94
30 0.91 1.28 1.53 1.79 2.02 2.59 2.7 3.39
40 0.70 0.99 1.15 1.35 1.51 1.85 2.04 2.56
50 0.56 0.79 0.92 1.08 1.22 1.48 1.64 2.06
For the reliability of the power meter efficient table that the present invention formulates is described, now verify as follows.Can find the centre distance a=120 millimeter of formulating with this method, speed ratio i=10, each revolution n by table seven
nFormulation efficient
By to centre distance a=120 millimeter, speed ratio i=10, each revolution n
nThe efficiency by inputoutput test that test records
Both numerical value contrasts are as following table
N rev/mins 200 300 400 500 600 750 1,000 1500
Formulate
86 87 87 87 87 89 90 90
Actual measurement
87.3 87.6 88.9 88.6 88.8 89.5 90.7
Differ-1.3%-0.6%-1.9%-1.6%-1.8%-0.5%-0.7%
Can find the centre distance a=120 millimeter of formulating with this method, speed ratio i=50, the formulation efficient of each revolution by table seven
By to centre distance a=120 millimeter, speed ratio i=50, the efficiency by inputoutput test that each revolution test records
Both numerical value contrasts are as follows:
N rev/mins 200 300 400 500 600 750 1,000 1500
Formulate
63 67 71 71 71 73 73 73
Actual measurement
63.1 66.6 71.05 71.4 71.4 73 73.3 74.87
Differ-0.1%+0.4%-0.5%-0.4%-0.4% 0%-0.3%-1.87%
Quote trust Beijing test center of engineering college of Shoudu Iron and Steel Co machine works in 1978 again apart from the a=150 millimeter in order to further specify reliability of the present invention, the efficient of the planar double-enveloping worm of speed ratio i=12.5 (SG-71 type worm gear pair) gearing speed-reducer, result is (referring to " preliminary test of SG-71 type worm drive ultimate bearing capacity " Beijing engineering college State of Zhao coral 1978.6) shown in Fig. 2 curve
By diagramatic curve as can be known, as output torque M=202kg-M
N=1000 rev/min of input revolution, the efficient that records
Test specimen PWS-01 η
150-12.5 1000=91.3
Test specimen PWS-02 η
150-12.5 1000=90
Mean value actual measurement η
150-12.5 1000=90.65
In the formulation efficient table of formulating with this method seven, speed ratio i=10(and speed ratio i=12.5 equivalence) defeated efficiency eta=90 with revolution n=1000 rev/min differ 0.65%.
Description of drawings: Fig. 1 is
Wherein
1 drive motor
2 input revolution torque sensors
3 tested worm drive speed reduction units
4 output revolutions torque sensors
5 speed-increasing gears
6 variators
7 electromagnetic clutchs
8 load motors
9 input revolution torque measurers
10 output revolutions torque measurers
Load to weight ratio temperature rise relation when Fig. 2 is natural cooling
Wherein
The x PWS-01 first cover SG-71 type worm drive test specimen
The O PWS-0.5 second cover SG-71 type worm drive test specimen
Claims (5)
1, a kind of gear drive test unit is specially adapted to the test of various runnabilities in the worm drive, by drive motor, and the revolution torque sensor, speed-increasing gear, variator, load motor, revolution torque measurer and electromagnetic clutch are formed.It is characterized in that drive motor adopts the sub-buncher of three phase rectifier, the revolution of the input and output axle of tested speed reduction unit and torque are measured by the revolution torque sensor, and the measurement result of revolution torque sensor is by revolution torque measurer displayed record.
2, cogwheel gearing as claimed in claim 1 is characterized in that load motor is that three-phase commutator machine serves as generator, the revolution that load motor requires speed-increasing gear and variator adjustment.
3, gear drive test unit as claimed in claim 2 is characterized in that speed-increasing gear connects with electromagnetic clutch with variator.
4, a kind of worm drive gear series reducer product power meter, efficient table assay method are specially adapted to the formulation of enveloping worm gearing speed-reducer series of products power meter, efficient table.Step is:
Selected with reference to power meter, efficient table, measure a kind of specification centre distance a with testing equipment of the present invention
o, speed ratio i
o, the efficient of serial revolution
, then based on testing efficiency, in conjunction with progressively formulating new efficient table, power meter successively with following formula of the present invention with reference to power with reference to efficient.
5, worm drive gear series reducer product power meter efficient table assay method according to claim 4 is characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92108907 CN1082711A (en) | 1992-08-01 | 1992-08-01 | Worm drive series power measurement device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92108907 CN1082711A (en) | 1992-08-01 | 1992-08-01 | Worm drive series power measurement device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1082711A true CN1082711A (en) | 1994-02-23 |
Family
ID=4943861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92108907 Pending CN1082711A (en) | 1992-08-01 | 1992-08-01 | Worm drive series power measurement device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1082711A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980768A (en) * | 2012-12-24 | 2013-03-20 | 重庆理工大学 | Test method for measuring dynamic transmission efficiencies of actuator of AMT clutch |
| WO2015096796A1 (en) * | 2013-12-26 | 2015-07-02 | 深圳市配天智造装备股份有限公司 | Speed reducer testing device |
| CN107084839A (en) * | 2017-06-06 | 2017-08-22 | 青岛科技大学 | The closed Worm and Worm Gear Driving experimental bench of mechanical output stream |
| CN107228721A (en) * | 2017-07-19 | 2017-10-03 | 苏州宝嘉新能源科技有限公司 | Worm type of reduction gearing efficiency test device |
-
1992
- 1992-08-01 CN CN 92108907 patent/CN1082711A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980768A (en) * | 2012-12-24 | 2013-03-20 | 重庆理工大学 | Test method for measuring dynamic transmission efficiencies of actuator of AMT clutch |
| WO2015096796A1 (en) * | 2013-12-26 | 2015-07-02 | 深圳市配天智造装备股份有限公司 | Speed reducer testing device |
| CN107084839A (en) * | 2017-06-06 | 2017-08-22 | 青岛科技大学 | The closed Worm and Worm Gear Driving experimental bench of mechanical output stream |
| CN107228721A (en) * | 2017-07-19 | 2017-10-03 | 苏州宝嘉新能源科技有限公司 | Worm type of reduction gearing efficiency test device |
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