CN112557030A - Equipment for testing speed reducer - Google Patents
Equipment for testing speed reducer Download PDFInfo
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- CN112557030A CN112557030A CN202011532227.2A CN202011532227A CN112557030A CN 112557030 A CN112557030 A CN 112557030A CN 202011532227 A CN202011532227 A CN 202011532227A CN 112557030 A CN112557030 A CN 112557030A
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- encoder
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- servo motor
- rotary encoder
- speed reducer
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 68
- 238000012360 testing method Methods 0.000 title claims abstract description 38
- 238000005259 measurement Methods 0.000 abstract description 9
- 230000005540 biological transmission Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/025—Test-benches with rotational drive means and loading means; Load or drive simulation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses equipment for testing a speed reducer, which comprises a supporting platform, a servo motor, an input end rotary encoder and an output end angle encoder, wherein the servo motor, the input end rotary encoder and the output end angle encoder are arranged on the supporting platform, the servo motor provides power for the speed reducer to be tested, the input end rotary encoder is connected with the input end of the speed reducer to be tested, the output end of the speed reducer to be tested is connected with the output end angle encoder, the precision of the output end angle encoder is +/-1 angular second, the precision of the input end rotary encoder is not more than +/-n angular seconds, and n is the minimum reduction ratio of the. Through the mode, the output end angle encoder with the accuracy as high as +/-1 arc second is arranged at the output end of the speed reducer to be measured, and the angle measurement accuracy can be guaranteed. And moreover, a reasonable angle measuring device is selected according to the specific application environment of the input end and the output end of the speed reducer to be measured, so that the precision of angle measurement is ensured, and the cost of the speed reduction testing equipment is reduced.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to equipment for testing a speed reducer.
Background
The high-precision cycloidal pin wheel speed reducer has wide application in the fields of industrial robots, precision machining equipment, paper making printing machinery, medical instruments and the like, and the quality of the performance of the high-precision cycloidal pin wheel speed reducer directly influences the performance index of a final product. Taking an industrial robot as an example, China is the country with the highest demand growth rate of industrial robots in the world at present, about 2 million industrial robots are newly added in 2011, 8 million reducers are needed for calculating 4 reducers for each set, and the number is expected to increase at a speed of 5% every year, so that the research and the manufacture of a high-performance cycloid reducer which can meet the requirements are necessary and urgent. The technology of the high-precision cycloidal pin wheel speed reducer in China is monopolized abroad at present, in order to break the long-term monopoly of the technology abroad, the speed reducer is independently researched and developed, a set of testing system of the high-precision cycloidal pin wheel speed reducer is correspondingly established, the angle transmission error, the return difference, the elastic constant and the like of the key performance indexes of the speed reducer are evaluated, the problems occurring in the research and development process of the speed reducer are timely reflected, the research and development of the speed reducer are more quickly and forwardly promoted, the monopoly of the speed reducer in China is broken away as early as possible, and the method has important significance.
When an existing speed reducer comprehensive performance system tests speed reducer angle transmission errors, angle information of input and output ends of a speed reducer is tested through an angle measuring device of a servo motor, the test precision error of the angle measuring device of the servo motor is about 10 arc seconds, the angle transmission error of a current foreign cycloidal pin gear speed reducer is about 30 arc seconds, and the test requirement on the speed reducer angle measurement errors with a high reduction ratio cannot be met.
Disclosure of Invention
The invention mainly solves the technical problem of providing equipment for testing a speed reducer, wherein an angle encoder and a rotary encoder are arranged at two ends of the speed reducer to be tested, so that the problem that when the speed reducer is tested for an angle transmission error, a used angle measuring device is low in precision and cannot meet the requirement of high precision is solved.
In order to solve the technical problems, the invention adopts a technical scheme that: the equipment for testing the speed reducer comprises a supporting platform, a servo motor, an input end rotary encoder and an output end angle encoder, wherein the servo motor is arranged on the supporting platform and used for providing power for the speed reducer to be tested, the input end rotary encoder is connected with the input end of the speed reducer to be tested, the output end of the speed reducer to be tested is connected with the output end angle encoder, the precision of the output end angle encoder is +/-1 angular second, the precision of the input end rotary encoder is not more than +/-n angular seconds, and n is the minimum reduction ratio of the speed reducer to be tested.
The output end of the servo motor is connected with the input end rotary encoder through a first connecting shaft.
The output end of the speed reducer to be tested is connected with the output end angle encoder through a second connecting shaft.
The equipment for testing the speed reducer further comprises an input end rotary encoder support, a speed reducer support to be tested and an output end angle encoder, wherein the input end rotary encoder support, the speed reducer support to be tested and the output end angle encoder are arranged on the supporting platform and can slide along the supporting platform, and the input end rotary encoder, the speed reducer to be tested and the output end angle encoder are respectively arranged on the input end rotary encoder, the speed reducer to be tested.
Wherein, input rotary encoder support, the reduction gear support that awaits measuring and output end angle encoder support are fixed in on the supporting platform through the locating piece.
Wherein, input rotary encoder support, the reduction gear support that awaits measuring and output angle encoder support are provided with first recess towards one side of supporting platform, are provided with horizontal guide rail on the supporting platform, are provided with a second recess relative with first recess on the horizontal guide rail, and the locating piece sets up in first recess and second recess to make the central axis of input rotary encoder, the reduction gear that awaits measuring, output angle encoder be located the coplanar.
The equipment for testing the speed reducer further comprises an industrial personal computer and a data acquisition card, wherein the data acquisition card is connected with the industrial personal computer and the servo motor, and the industrial personal computer controls the servo motor through the data acquisition card.
The equipment for testing the speed reducer further comprises a driver, wherein the driver is connected between the data acquisition card and the servo motor, the data acquisition card sends a control signal to the driver, and the servo motor is driven by the driver.
Wherein, the equipment for testing the speed reducer further comprises a counting card, and is connected with the industrial personal computer, the input rotary encoder and the output angle encoder carry out data acquisition through the counting card, and the counting card sends the acquired data to the industrial personal computer.
The equipment for testing the speed reducer further comprises a servo motor support fixed on the supporting platform, and the servo motor is arranged on the servo motor support.
The invention has the beneficial effects that: the output end angle encoder with the precision reaching +/-1 arc second is arranged at the output end of the speed reducer, so that the angle measurement precision of the output end of the speed reducer with the greatly reduced rotating speed can be ensured. Meanwhile, the input end of the speed reducer is provided with the input end rotary encoder with the precision not greater than +/-n (n is the minimum reduction ratio of the speed reducer), and the angle measurement precision of the input end of the speed reducer with the high rotating speed can be ensured. The reasonable angle measuring device is selected according to the specific application environment of the input end and the output end of the speed reducer to be measured, so that the precision of angle measurement is guaranteed, and the cost of the speed reduction testing equipment is reduced.
Drawings
FIG. 1 is a schematic front view of the apparatus for testing a decelerator according to the present invention; fig. 2 is a schematic top view of the apparatus for testing a decelerator in fig. 1.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
Referring to fig. 1 and 2, fig. 1 is a front view schematically illustrating a structure of an apparatus for testing a decelerator according to the present invention; fig. 2 is a schematic top view of the apparatus for testing a decelerator in fig. 1. In this embodiment, the apparatus for testing a decelerator includes a supporting platform 12, a servo motor 1, a first connecting shaft 3, an input end rotary encoder 5, a second connecting shaft 8, an output end angle encoder 9, a servo motor bracket 2, an input end rotary encoder bracket 4, a decelerator to be tested bracket 6, an output end angle encoder bracket 10, a driver 31, a counting card 41, a data acquisition card 42, and an industrial personal computer 43, which are disposed on the supporting platform 12.
The servo motor 1 is connected with the input end rotary encoder 5 through the first connecting shaft 3, and the input end rotary encoder 5 is installed between the first connecting shaft 3 and the input end of the speed reducer 7 to be tested. In other embodiments, the input end rotary encoder 5 may be installed on the first connecting shaft 3, or the first connecting shaft 3 may be omitted, and the servo motor 1 is directly connected to the input end of the reducer 7 to be tested through the input end rotary encoder 5. The output end of the speed reducer 7 to be tested is connected with an output end angle encoder 9 through a second connecting shaft 8. Likewise, in other embodiments, the output of the gear unit 7 to be tested can be directly connected to the output angle encoder 9. Through the above connection, the angle information of the input end of the speed reducer 7 to be tested is tested by the input end rotary encoder 5, and the angle information of the output end of the speed reducer 7 to be tested is acquired by the output end angle encoder 9. The precision of output end angle encoder is 1 angular second, the precision of input end rotary encoder is not more than n angular second, and n is the minimum reduction ratio of reduction gear that awaits measuring.
Input rotary encoder support 4, the reduction gear support 6 that awaits measuring and output angle encoder support 10 set up on supporting platform 12 and can slide along supporting platform 12. Specifically, one side of the input end rotary encoder bracket 4, the speed reducer bracket 6 to be measured and the output end angle encoder bracket 10 facing the support platform 12 is provided with a first groove (not shown), the support platform 12 is provided with a horizontal guide rail (not shown), a second groove (not shown) is arranged in the horizontal guide rail, and the positioning blocks 11 and 13 are arranged in the first groove and the second groove. The central axis of input rotary encoder 5, the reduction gear 7 that awaits measuring, output angle encoder 9 is in the perpendicular to like this the guide rail just follows on the plane that guide rail length direction extends, and with the guide rail is parallel, only is different on the direction of height, consequently when the above-mentioned part of installation, only need adjust their the height of central axis just, accelerated the assembly speed of the equipment that is used for testing the reduction gear greatly, save this test equipment at the preparation time of the reduction gear that awaits measuring of test. The servo motor bracket 2 is directly fixed on the horizontal guide rail of the supporting platform 12. By adopting the positioning block and the first groove and the second groove matched with the positioning block, the coaxiality of all parts of the test system can be controlled to be less than 0.01 mm.
The invention has the beneficial effects that: the output end angle encoder with the precision reaching +/-1 arc second is arranged at the output end of the speed reducer, so that the angle measurement precision of the output end of the speed reducer with the greatly reduced rotating speed can be ensured. Meanwhile, the input end of the speed reducer is provided with the input end rotary encoder with the precision not greater than +/-n (n is the minimum reduction ratio of the speed reducer), and the angle measurement precision of the input end of the speed reducer with the high rotating speed can be ensured. According to the invention, a reasonable angle measuring device is selected according to the specific application environment of the input end and the output end of the speed reducer to be tested, so that the precision of angle measurement is ensured, and the cost of speed reduction testing equipment is reduced.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides an equipment for testing reduction gear, a serial communication port, equipment for testing reduction gear includes supporting platform and sets up servo motor, input rotary encoder, output angle encoder on the supporting platform, servo motor does the reduction gear that awaits measuring provides power, the input rotary encoder connects the input of the reduction gear that awaits measuring, the output of the reduction gear that awaits measuring is connected output angle encoder, the precision of output angle encoder is 1 angle second, the precision of input rotary encoder is not more than n angle second, and n is the minimum reduction ratio of the reduction gear that awaits measuring.
2. The apparatus for testing a decelerator according to claim 1, wherein an output end of the servo motor is connected to the input end rotary encoder through a first connection shaft.
3. The apparatus for testing a reducer according to claim 2, wherein the output end of the reducer to be tested is connected with the output end angle encoder through a second connecting shaft.
4. The apparatus for testing a decelerator according to claim 1, further comprising an input end rotary encoder bracket, a decelerator bracket to be tested, and an output end angle encoder provided on the support platform and slidable along the support platform, the input end rotary encoder, the decelerator to be tested, and the output end angle encoder being respectively provided thereon.
5. The apparatus for testing a reducer according to claim 4, wherein the input end rotary encoder bracket, the reducer bracket to be tested and the output end angular encoder bracket are fixed on the support platform by positioning blocks.
6. The apparatus according to claim 5, wherein the input rotary encoder bracket, the speed reducer bracket to be tested, and the output angular encoder bracket are provided with a first groove on one side facing the supporting platform, the supporting platform is provided with a horizontal guide rail, the horizontal guide rail is provided with a second groove opposite to the first groove, and the positioning block is disposed in the first groove and the second groove, so that central axes of the input rotary encoder, the speed reducer to be tested, and the output angular encoder are located on the same plane.
7. The apparatus for testing a decelerator according to claim 1, wherein the decelerator testing apparatus further includes an industrial personal computer and a data acquisition card, the data acquisition card is connected to the industrial personal computer and the servo motor, and the industrial personal computer controls the servo motor through the data acquisition card.
8. The apparatus for testing a retarder according to claim 7, further comprising a driver connected between the data acquisition card and the servo motor, the data acquisition card sending a control signal to the driver, the servo motor being driven by the driver.
9. The apparatus for testing a decelerator according to claim 7, further comprising a counting card connected to the industrial computer, the input rotary encoder and the output angle encoder, wherein the input rotary encoder and the output angle encoder perform data acquisition through the counting card, and the counting card transmits the acquired data to the industrial computer.
10. The apparatus for testing a decelerator according to claim 1, further comprising a servo motor bracket fixed to the support platform, the servo motor being provided on the servo motor bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011532227.2A CN112557030A (en) | 2020-12-23 | 2020-12-23 | Equipment for testing speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011532227.2A CN112557030A (en) | 2020-12-23 | 2020-12-23 | Equipment for testing speed reducer |
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| Publication Number | Publication Date |
|---|---|
| CN112557030A true CN112557030A (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011532227.2A Pending CN112557030A (en) | 2020-12-23 | 2020-12-23 | Equipment for testing speed reducer |
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| CN (1) | CN112557030A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698126A (en) * | 2013-12-26 | 2014-04-02 | 北京配天大富精密机械有限公司 | Speed reducer testing equipment |
| CN203688220U (en) * | 2013-12-26 | 2014-07-02 | 北京配天大富精密机械有限公司 | Speed reducer testing equipment |
| CN203745198U (en) * | 2013-12-26 | 2014-07-30 | 北京配天大富精密机械有限公司 | Speed reducer test equipment |
| CN106370424A (en) * | 2016-12-02 | 2017-02-01 | 江苏理工学院 | Testing device for testing dynamic performance of various models of RV speed reducers |
-
2020
- 2020-12-23 CN CN202011532227.2A patent/CN112557030A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698126A (en) * | 2013-12-26 | 2014-04-02 | 北京配天大富精密机械有限公司 | Speed reducer testing equipment |
| CN203688220U (en) * | 2013-12-26 | 2014-07-02 | 北京配天大富精密机械有限公司 | Speed reducer testing equipment |
| CN203745198U (en) * | 2013-12-26 | 2014-07-30 | 北京配天大富精密机械有限公司 | Speed reducer test equipment |
| CN106370424A (en) * | 2016-12-02 | 2017-02-01 | 江苏理工学院 | Testing device for testing dynamic performance of various models of RV speed reducers |
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Application publication date: 20210326 |
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