CN107782518A - A kind of servomotor static rigidity detection means - Google Patents
A kind of servomotor static rigidity detection means Download PDFInfo
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- CN107782518A CN107782518A CN201711015019.3A CN201711015019A CN107782518A CN 107782518 A CN107782518 A CN 107782518A CN 201711015019 A CN201711015019 A CN 201711015019A CN 107782518 A CN107782518 A CN 107782518A
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- 238000001514 detection method Methods 0.000 title claims abstract description 38
- 230000003068 static effect Effects 0.000 title claims abstract description 21
- 238000012360 testing method Methods 0.000 claims abstract description 84
- 230000008878 coupling Effects 0.000 claims abstract description 15
- 238000010168 coupling process Methods 0.000 claims abstract description 15
- 238000005859 coupling reaction Methods 0.000 claims abstract description 15
- 230000000630 rising effect Effects 0.000 claims 2
- 238000005259 measurement Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 238000005516 engineering process Methods 0.000 description 1
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Classifications
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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
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0075—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by means of external apparatus, e.g. test benches or portable test systems
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of servomotor static rigidity detection means, including detection platform, first lifting platform, second lifting platform, reference test bar, encoder, first test counterweight and the second test counterweight, encoder is fixed on above detection platform, the shaft coupling being fixedly arranged at the front end with for the output axis connection with servomotor of the rotating shaft of encoder, reference test bar is fastened transversely in the rotating shaft of encoder by its middle part, first lifting platform and the second lifting platform are respectively arranged in detection platform, and first lifting platform and the second lifting platform respectively positioned at the underface at the both ends of reference test bar, first test counterweight and the second test counterweight are respectively placed on the table top of the first lifting platform and the second lifting platform, the upper end of first test counterweight and the second test counterweight is connected by the both ends of connecting rope and reference test bar respectively.Corner offset of the invention by lifting forward and reverse of the i.e. measurable servomotor of lifting platform in an axis angular position.
Description
Technical field
The present invention relates to a kind of servomotor static rigidity detection means.
Background technology
The static rigidity of servomotor reflects servomotor motor resistance external force change in the case where zero-speed locks
Ability, technical standard order apply nominal torque under zero-speed state to servomotor, measure the corner skew of motor output shaft
Amount, carries out forward and reverse measurement in 3 different axis angular positions, measures 6 groups of data respectively, is calculated with the data of maximum
Static rigidity.
And measurement for the static rigidity of servomotor and to find there is special device, this causes the quiet of servomotor
This evaluation index of state rigidity does not have accurate measured value, it is impossible to provides accurate data ginseng for enterprise and user
Examine.
The content of the invention
The technical problems to be solved by the invention, just it is to provide and a kind of meets standard requirement, easy to operate, safe and reliable
Servomotor static rigidity detection means, by lifting forward direction of the i.e. measurable servomotor of lifting platform in an axis angular position
With reverse corner offset.
Solves above-mentioned technical problem, the technical solution adopted by the present invention is as follows：
A kind of servomotor static rigidity detection means, it is characterised in that：Including detection platform, the first lifting platform, second
Lifting platform, reference test bar, encoder, the first test counterweight and the second test counterweight, encoder is fixed on above detection platform, and is compiled
Code device rotating shaft in the horizontal direction, the shaft coupling being fixedly arranged at the front end with for the output axis connection with servomotor of the rotating shaft of encoder
Device, reference test bar are fastened transversely in the rotating shaft of encoder by its middle part, and the first lifting platform and the second lifting platform are respectively arranged in
In detection platform, and the first lifting platform and the second lifting platform are respectively positioned at the underface at the both ends of reference test bar, the first test counterweight
It is respectively placed in the second test counterweight on the table top of the first lifting platform and the second lifting platform, the first test counterweight and the second test weight
The upper end of code is connected by the both ends of connecting rope and reference test bar respectively.
Further, the first test counterweight and second tests being equal in weight for counterweight.
Further, the first lifting platform and the second lifting platform structure are identical, including charge and discharge gas tank and lifter plate, inflation/deflation
The upper end of tank is provided with guide pipe straight up, and the middle through-hole of guide pipe inside charge and discharge gas tank with connecting, and guide pipe is from below
Through the mounting hole in detection platform, the bottom surface of lifter plate is provided with expansion link straight down, and expansion link is plugged in guide pipe,
Charge and discharge gas tank is provided with exhaust outlet and air inlet, be respectively equipped with the exhaust outlet and air inlet of charge and discharge gas tank exhaust solenoid valve and
Air inlet electromagnetic valve；When toward when inflating in charge and discharge gas tank, expansion link is promoted toward being raised from air pressure, when charge and discharge gas tank is vented, is stretched
Contracting bar declines because of own wt.
Further, detection means also includes air compressor and air accumulator, and the gas outlet of air compressor passes through gas
Pipe is connected with the air inlet of air accumulator, and the air inlet of the air inlet electromagnetic valve of the first lifting platform and the second lifting platform passes through tracheae respectively
It is connected with the gas outlet of air accumulator.
Further, detection means also includes the first air nozzle and the second air nozzle, the first air nozzle and second
Air nozzle is individually fixed in the underface at the both ends of reference test bar, and the jet side of the first air nozzle and the second air nozzle
Directly over Xiang Junchao, the air inlet of the first air nozzle and the second air nozzle is connected by tracheae with air accumulator respectively, the
The first electromagnetic valve for adjusting and the second electromagnetic valve for adjusting are respectively equipped with the air inlet of one air nozzle and the second air nozzle.
Further, be provided with horizontal through hole on shaft coupling, reference test bar by through-hole mounting on shaft coupling, reference test bar
The axis consistency from top to bottom of the rotating shaft of midpoint and encoder.
Further, the bottom of expansion link is provided with bulge loop, be equipped with the upper port and lower port of guide pipe radially to
In baffle ring；When expansion link rises to peak, the shelves ring of the upper port of guide pipe blocks bulge loop, drops to most in expansion link
During low spot, the shelves ring of the lower port of guide pipe blocks bulge loop.
Compared with prior art, the invention has the advantages that：
In the use of the present invention, by lifting lifting platform, so as to control the first test counterweight and second to test counterweight application
In the power on reference test bar so that measured servomotor forward or reverse, servomotor can be quickly read by encoder
The corner offset of output shaft positive and negative both direction in the axis angular position, quick measurement purpose is realized, and the measurement meets mark
It is alignment request, easy to operate, safe and reliable.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the assembling schematic diagram of the encoder, reference test bar, shaft coupling and tested servomotor of the present invention；
Fig. 3 is the structural representation of the lifting platform of the present invention.
Embodiment
A kind of servomotor static rigidity detection means as depicted in figs. 1 and 2, it includes the lifting of detection platform 1, first
Platform 2, the second lifting platform 3, reference test bar 17, encoder 26, first test counterweight 18, second test counterweight 19, air compressor 16,
Air accumulator 15, the first air nozzle 4 and the second air nozzle 5.
Detection platform 1 is the mounting bracket with upper table surface, and encoder 26 is existing apparatus, and the corner of rotating shaft is converted into by it
Electric signal, the angle of axis of rotation can be quickly read by encoder 26.Encoder 26 is fixed on the top of detection platform 1, and
In the horizontal direction, the rotating shaft 25 of encoder 26 is fixedly arranged at the front end with for the output with servomotor 23 for the rotating shaft 25 of encoder 26
The shaft coupling 24 of axis connection, horizontal through hole is provided with shaft coupling 24, and reference test bar 17, on shaft coupling 24, is surveyed by through-hole mounting
The midpoint of bar 17 and the axis consistency from top to bottom of the rotating shaft 25 of encoder 26, reference test bar 17 can drive shaft coupling 24 to rotate.
As shown in figure 3, the first lifting platform 2 is identical with the structure of the second lifting platform 3, including charge and discharge gas tank 6 and lifter plate 20,
The upper end of charge and discharge gas tank 6 is provided with guide pipe 22 straight up, and the middle through-hole of guide pipe 22 connects with the inside of charge and discharge gas tank 6,
Guide pipe 22 passes from below through the mounting hole in detection platform 1, and the bottom surface of lifter plate 20 is provided with expansion link 21 straight down, stretched
Contracting bar 21 is plugged in guide pipe 22, and lifter plate 20 is located at the top of detection platform 1, and the upper surface of lifter plate 20 is lifting platform
Table top.The bottom of expansion link 21 is provided with bulge loop 210, and the side wall of bulge loop 210 is close to the inwall of guide pipe 22, guide pipe 22 it is upper
Baffle ring 220 radially inwards is equipped with port and lower port；When expansion link rises to peak, the upper port of guide pipe
Shelves ring blocks bulge loop, and when expansion link drops to minimum point, the shelves ring of the lower port of guide pipe blocks bulge loop, flexible so as to limit
The range of movement of bar.Charge and discharge gas tank 6 is provided with exhaust outlet and air inlet, when toward when inflating in charge and discharge gas tank 6, expansion link 21 is by gas
Pressure promotion is past to be raised, and when charge and discharge gas tank 6 is vented, expansion link 21 declines because of own wt.In the exhaust outlet of charge and discharge gas tank 6
With exhaust solenoid valve 9,11 and air inlet electromagnetic valve 8,10 are respectively equipped with air inlet, by controlling exhaust solenoid valve 9,11 and air inlet
Magnetic valve 8,10 is the inflatable and deflatable of controllable inflation/deflation tank, easy to operate.The gas outlet of air compressor 16 passes through tracheae
It is connected with the air inlet of air accumulator 15, the air inlet of the air inlet electromagnetic valve 8,10 of two charge and discharge gas tanks 6 passes through tracheae and gas storage respectively
The gas outlet connection of tank 15, the exhaust outlet of two charge and discharge gas tanks 6 are connected by exhaust solenoid valve 9,11 with extraneous air.
First air nozzle 4 and the second air nozzle 5 are individually fixed in detection platform 1, platform of the upper end from detection platform 1
Protrusion on face, the first air nozzle 4 and the second air nozzle 5 are located at the underface at the both ends of reference test bar 17, and the first air
The jet direction of the air nozzle 5 of nozzle 4 and second is towards surface, the air inlet of the first air nozzle 4 and the second air nozzle 5
It is connected respectively by tracheae with air accumulator 15, is respectively equipped with the air inlet of the first air nozzle 4 and the second air nozzle 5
One electromagnetic valve for adjusting 12 and the second electromagnetic valve for adjusting 13.As shown in figure 1, the first air nozzle 4,5, first liters of the second air nozzle
The lifting platform 3 of platform 2 and second drops laterally side by side on a straight line, and the straight line is parallel with reference test bar, immediately below reference test bar.
First test counterweight 18 and second tests being equal in weight for counterweight 19, is respectively placed in the first lifting platform 2 and second liter
On the table top for dropping platform 3, the upper end that the first test counterweight 18 and second tests counterweight 19 passes through connecting rope 27 and reference test bar 17 respectively
Both ends connection, the length of connecting rope need to meet described below to use process.
It is as follows that the step of servomotor static rigidity is tested is carried out using the present embodiment：
The first step, detection means is assembled by said structure, but the first test counterweight 18 and second tests counterweight 19
It is placed on the table top of the first lifting platform 2 and the second lifting platform 3, first the both ends not with reference test bar 17 are connected, and pass through shaft coupling 24
The output shaft of the tested servomotor 23 of connection, is inflated to air accumulator 15 by air compressor 16, makes to maintain in air accumulator 15
Stable air pressure, the exhaust solenoid valve 9,11 of two charge and discharge gas tanks 6 is closed, open two air inlet electromagnetic valves 8,10, the gas of air accumulator 15
Body is filled with two charge and discharge gas tanks 6, and expansion link 21 is promoted by air pressure and is up raised up to peak；
Second step, by controlling the first electromagnetic valve for adjusting 12 and the second electromagnetic valve for adjusting 13, make the first air nozzle 4 and the
Two air nozzles 5 spray gas, and the gas of ejection impacts on reference test bar 17, quickly reference test bar 17 is adjusted so as to realize
Section, until reference test bar 17 reaches horizontal level, except by the first electromagnetic valve for adjusting 12 and the second electromagnetic valve for adjusting 13 to test
Bar 17 is carried out outside fast leveling, can also directly carry out leveling manually, and after leveling, the first test counterweight 18 and second tests weight
The upper end of code 19 is connected by connecting rope 27 with the both ends of reference test bar 17 respectively, and link position is symmetrical, and now, connecting rope 27 is in
Relaxed state；
3rd step, it is powered to tested servomotor 23 and is at static locking state, encoder 26 catches the zero of test
Point position；
4th step, the air inlet electromagnetic valve 8 of the charge and discharge gas tank in left side in diagram is closed, open the exhaust electromagnetism of the charge and discharge gas tank
The charge and discharge gas tank exhaust of valve 9, now left side, the expansion link 21 of the first lifting platform 2 decline because of own wt, the first test counterweight
18 hang in the left end of reference test bar 17, and first tests counterweight 18 separates with the table top of the first lifting platform 2 of lower section, and its connecting rope 27 is taut
Tightly, because of the gravity of the first test counterweight 18, the output shaft for driving tested servomotor 23 by shaft coupling 24 turns in one direction
Dynamic certain angle, and now, on the table top for the second lifting platform 3 that the second test counterweight 29 on right side is still pressed on lower section, with the
The connecting rope 27 that two test counterweights 19 connect is not produced still in relaxed state, i.e., the second test counterweight 19 to the right-hand member of reference test bar 17
Raw active force, the angle for being now tested the output shaft of servomotor and turning in the direction can be read by encoder 26；
5th step, the exhaust solenoid valve 9 of the charge and discharge gas tank in left side is closed, open the air inlet electromagnetic valve 8 of the charge and discharge gas tank, the
The lifter plate of one lifting platform 2 rises to peak again, and the first test counterweight 18 is lifted by the first lifting platform 2 again, turns off the right side
The air inlet electromagnetic valve 10 of the charge and discharge gas tank of side, open the exhaust solenoid valve 11 of the charge and discharge gas tank on right side, the charge and discharge gas tank row on right side
Gas, the expansion link of the second lifting platform 3 decline because of own wt, and the second test counterweight 19 separates with the table top of the second lifting platform 3,
The connecting rope 27 being connected with the second test counterweight 19 is tightened, and because of the gravity of the second test counterweight 19, quilt is driven by shaft coupling 24
The output shaft for surveying servomotor turns an angle in another direction, and now, the first test counterweight 18 in left side is still pressed
Pass through volume still in relaxed state in the connecting rope on the table top of the first lifting platform 2 of lower section, being connected with the first test counterweight 18
Code device 26 can be read and now be tested the angle that the output shaft of servomotor 23 turns in the direction.So as to complete in the axis angular position
When forward and reverse corner offset collection.
When being tested using the servomotor static rigidity detection means of the present invention, using air pressure drive control lifting platform
Raising and lowering, so that test counterweight exerts a force to reference test bar, encoder can be more accurate and easily measures servomotor
The corner offset of output shaft positive and negative both direction in a static condition.
The above embodiment of the present invention is not limiting the scope of the present invention, and embodiments of the present invention are not limited to
This, all this kind, according to the ordinary technical knowledge and customary means of this area, is not departing from this according to the above of the present invention
Under the premise of inventing above-mentioned basic fundamental thought, modification, replacement or the change of the other diversified forms made to said structure of the present invention
More, all should fall within the scope and spirit of the invention.
Claims (7)
- A kind of 1. servomotor static rigidity detection means, it is characterised in that：Including detection platform, the first lifting platform, second liter Platform, reference test bar, encoder, the first test counterweight and the second test counterweight, the encoder is dropped to be fixed in the detection platform Side, and the rotating shaft of the encoder is in the horizontal direction, the rotating shaft of the encoder is fixedly arranged at the front end with for electric with the servo The shaft coupling of the output axis connection of machine, the reference test bar is fastened transversely in the rotating shaft of the encoder by its middle part, described First lifting platform and the second lifting platform are respectively arranged in the detection platform, and first lifting platform and the second lifting platform point Not Wei Yu the reference test bar both ends underface, it is described first test counterweight and second test counterweight be respectively placed in described first On the table top of lifting platform and the second lifting platform, the upper end of the first test counterweight and the second test counterweight passes through connecting rope respectively It is connected with the both ends of the reference test bar.
- 2. servomotor static rigidity detection means according to claim 1, it is characterised in that：The first test counterweight With being equal in weight for the second test counterweight.
- 3. servomotor static rigidity detection means according to claim 2, it is characterised in that：First lifting platform and Second lifting platform structure is identical, and including charge and discharge gas tank and lifter plate, the upper end of the charge and discharge gas tank is provided with leading straight up Xiang Guan, for the middle through-hole of the guide pipe with being connected inside the charge and discharge gas tank, the guide pipe passes from below through the detection Mounting hole on platform, the bottom surface of the lifter plate are provided with expansion link straight down, and the expansion link is plugged in the guiding Guan Zhong, the charge and discharge gas tank are provided with exhaust outlet and air inlet, set respectively at the exhaust outlet and air inlet of the charge and discharge gas tank There are exhaust solenoid valve and air inlet electromagnetic valve；When toward when inflating in the charge and discharge gas tank, the expansion link is promoted toward rising from air pressure Rise, when the charge and discharge gas tank is vented, the expansion link declines because of own wt.
- 4. servomotor static rigidity detection means according to claim 3, it is characterised in that：The detection means is also wrapped Air compressor and air accumulator are included, the gas outlet of the air compressor is connected by the air inlet of tracheae and the air accumulator Connect, the air inlet of the air inlet electromagnetic valve of the first lifting platform and the second lifting platform passes through the gas outlet of tracheae and the air accumulator respectively Connection.
- 5. servomotor static rigidity detection means according to claim 4, it is characterised in that：The detection means is also wrapped The first air nozzle and the second air nozzle are included, first air nozzle and the second air nozzle are individually fixed in the test The underface at the both ends of bar, and the jet direction of first air nozzle and the second air nozzle is towards surface, it is described The air inlet of first air nozzle and the second air nozzle is connected by tracheae with the air accumulator respectively, in first air The first electromagnetic valve for adjusting and the second electromagnetic valve for adjusting are respectively equipped with the air inlet of nozzle and the second air nozzle.
- 6. servomotor static rigidity detection means according to claim 5, it is characterised in that：It is provided with the shaft coupling Horizontal through hole, the reference test bar by the through-hole mounting on the shaft coupling, the midpoint of the reference test bar and the volume The axis consistency from top to bottom of the rotating shaft of code device.
- 7. the servomotor static rigidity detection means according to claim 3 to 6 any one, it is characterised in that：It is described The bottom of expansion link is provided with bulge loop, and baffle ring radially inwards is equipped with the upper port and lower port of the guide pipe；Institute When stating expansion link and rising to peak, the shelves ring of the upper port of the guide pipe blocks the bulge loop, declines in the expansion link During to minimum point, the shelves ring of the lower port of the guide pipe blocks the bulge loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711015019.3A CN107782518A (en) | 2017-10-25 | 2017-10-25 | A kind of servomotor static rigidity detection means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711015019.3A CN107782518A (en) | 2017-10-25 | 2017-10-25 | A kind of servomotor static rigidity detection means |
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| Publication Number | Publication Date |
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| CN107782518A true CN107782518A (en) | 2018-03-09 |
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| CN201711015019.3A Withdrawn CN107782518A (en) | 2017-10-25 | 2017-10-25 | A kind of servomotor static rigidity detection means |
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| CN (1) | CN107782518A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115597800A (en) * | 2022-12-13 | 2023-01-13 | 西安航天精密机电研究所（Cn） | Device and method for testing rigidity of gyro motor of dynamic pressure bearing of liquid floating gyro |
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| CN115597800B (en) * | 2022-12-13 | 2023-04-07 | 西安航天精密机电研究所 | Device and method for testing rigidity of gyro motor of dynamic pressure bearing of liquid floating gyro |
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Application publication date: 20180309 |