CN108956176A - A kind of high-precision hydraulic damper and the dynamic and static test platform of actuator - Google Patents
A kind of high-precision hydraulic damper and the dynamic and static test platform of actuator Download PDFInfo
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- CN108956176A CN108956176A CN201810909147.0A CN201810909147A CN108956176A CN 108956176 A CN108956176 A CN 108956176A CN 201810909147 A CN201810909147 A CN 201810909147A CN 108956176 A CN108956176 A CN 108956176A
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- guide rail
- connecting plate
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- slide block
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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
- G01M17/00—Testing of vehicles
- G01M17/08—Railway vehicles
- G01M17/10—Suspensions, axles or wheels
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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
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of high-precision hydraulic damper and actuator are dynamic, static test platform, including marble experimental bench, guide rail slide block connecting plate A, stator, mover, guide rail slide block and grating scale, voice coil motor is installed on the left of marble experimental bench, voice coil motor includes stator and mover, one end of mover is equipped with mover connecting plate, the side wall of mover connecting plate is equipped with slider connecting plate, measured piece two sides are connected using flexural pivot, left side is connect with guide rail slide block connecting plate A, right side connects guide rail slide block connecting plate B, guide rail slide block connecting plate B connection pull pressure sensor connector, pull pressure sensor is connect with the load guide rail splice for being mounted on load left side, the present invention is using voice coil motor as servo drive, using the relative displacement of grating scale test measured piece, the present invention is for moving damper and actuator, Static test can be convenient in test and quickly adjust load form, improves the convenience of test, reduce testing cost.
Description
Technical field
The present invention relates to a kind of test platform, specifically a kind of high-precision hydraulic damper and the dynamic and static test of actuator
Platform.
Background technique
With the continuous development of China express railway, people to the safety of train operation and the comfort of seating require by
Gradually improve；But with the continuous improvement of the speed of service, train vibration level also constantly enhances.In order to decay, track is transmitted to car body
On vibrational energy, improve train riding comfort and running stability, need to rationally design suspension.Train suspension system
Specifically include that primary spring, one be vertical damper, rubber nodal point, two be lateral damper, air spring, anti-snake vibration damping
Device etc..Main component of the damper as suspension can effectively reduce because Stochastic track irregularity, curve track radius are not advised
Then, Vehicular vibration caused by the factors such as vehicle arrangement excitation, the quality of performance will determine vibrational energy in each portion of Vehicular system
The form and Reduction Level transmitted between part play the safety of bullet train, stability and riding comfort vital
It influences.
With the development of intellectualized technology, train active suspension is more and more applied.Active suspension
Train operation line status and information of vehicles can be acquired in real time, calculate current state Train institute using preset control algolithm
The ideal force needed, and be used as power accordingly by actuator offer, realize train self diagnosis, self-adjusting, adaptive function.As
One of critical component of active suspension, the performance parameters such as output amplitude, the phase of actuator imitate the control of whole system
Fruit plays the role of vital.
Therefore, in design vehicle suspension, need to test to the performance of hydraulic buffer or actuator test.Mesh
Before, damper and actuator Detecting data there is measuring accuracies it is low, internal system error is larger the problems such as.In addition, subtracting
The measurement two different testing stands of needs for device and the actuator of shaking, when measurement, can only simulate single actual condition, cannot obtain two
The dynamic property of person, experimentation cost are higher.
Summary of the invention
The purpose of the present invention is to provide a kind of high-precision hydraulic dampers and the dynamic and static test platform of actuator, with solution
Certainly the problems mentioned above in the background art.
To achieve the above object, the invention provides the following technical scheme:
A kind of high-precision hydraulic damper and the dynamic and static test platform of actuator, including marble experimental bench, guide rail slide block connect
Plate A, stator, mover, guide rail slide block and grating scale are equipped with voice coil motor, voice coil motor on the left of the marble experimental bench
Including stator and mover, one end of mover is equipped with mover connecting plate, and the side wall of mover connecting plate is equipped with slider connecting plate, moves
Sub- connecting plate is connected by slider connecting plate with guide rail slide block, and guide rail slide block is placed in guide rail A slideway, and guide rail A leads for air bearing
Rail, the lower section of guide rail A are equipped with guide rail cushion block, and guide rail slide block connecting plate A is connect by flexural pivot attachment device connector with measured piece,
It is connect by flexural pivot with guide rail slide block connecting plate B on the right side of measured piece, the connection of guide rail slide block connecting plate B connection pull pressure sensor
Part, pull pressure sensor are connect with the load connecting plate A for being mounted on load left side, in load merging load guide rail B slideway, load
Right side be equipped with positioning plate, load connect with positioning plate by locating rod, the upper surface of positioning plate and marble experimental bench is fixed
Connection, the side wall of positioning plate, which runs through, through-hole, is equipped with grating scale on the side wall of guide rail slide block and load.
As a further solution of the present invention: the guide rail A includes guide rail upper plate A, guide rail left plate A, guide rail right side plate
A, guide rail lower plate A；Grating reading head is installed on guide rail right side plate A.
As the present invention further scheme: the guide rail slide block is connected with guide rail slide block connecting plate A, and be tested
The flexural pivot connector of part side connected connecting plate A and connecting plate C is bolted, the flexural pivot connector of the measured piece other side and company
Fishplate bar B is connected with connecting plate D, and is bolted with guide rail slide block connecting plate B.
As further scheme of the invention: there are two the guide rail cushion block is total.
As further scheme of the invention: the load guide rail includes guide rail upper plate B, guide rail left plate B, the guide rail right side
Side plate B and guide rail lower plate B；Grating reading head is installed on guide rail right side plate B.
As further scheme of the invention: the right end of the load passes through load connecting plate B, flexural pivot and positioning
Bar connection, the right end of locating rod are machined with long screw thread, and major diameter of thread is less than the through-hole diameter of positioning plate, is arranged with two in locating rod
A stop nut.
As the present invention further scheme: the flexural pivot attachment device connector include connecting plate A and connecting plate C with
And connecting plate B and connecting plate D.
As further scheme of the invention: being connected with rubber frame, rubber frame by nut thread on the positioning plate
Side wall be fixedly connected with buffer rubber gasket.
Compared with prior art, the beneficial effects of the present invention are: the present invention using voice coil motor as servo drive,
Voice coil motor has the characteristics that zero magnetic hysteresis, zero magnetic slot, high resolution, reaction speed are fast, provides for control system accurate outer
It is motivating, ensure that the precision of damper, actuator the performance test results；The present invention is opposite using grating scale test measured piece
Displacement, the high stability and high-resolution of grating scale, the measurement accuracy for reducing measurement error, improving testing stand, detection
Range is big, fast response time, facilitates Quick Acquisition and processing of the computer system to information；Air bearing used in the present invention is led
System friction and vibration can be effectively reduced in rail, reduces the measurement error as caused by testing stand, keeps measurement result more accurate
React the dynamic and static performance of damper and actuator.
The present invention can be convenient in test and quickly adjust for the dynamic and static test to damper and actuator
Load form is saved, the convenience of test is substantially increased, reduces testing cost, simulate actual condition to the greatest extent.Vibration damping
The test block of device is mounted on testing stand, and limiting device is installed on load right side, and the nature static of damper can be realized in fixed load
It can test；By adjusting the quality of load and discharging limiting device, the actual condition of damper can be simulated to the greatest extent, is realized
Dynamic is tested.In the test of actuator, fixed voice coil motor, release is loaded, the actuator under simulation test actual condition
Energy；Fixed load exports continuous disturbances by voice coil motor, then it is dynamic in the case where arbitrarily determining external force loads can to test actuator
Static properties.
Detailed description of the invention
Fig. 1 is the main view of high-precision hydraulic damper and the dynamic and static test platform of actuator；
Fig. 2 is the top view of high-precision hydraulic damper and the dynamic and static test platform of actuator；
Fig. 3 is the installation diagram that guide rail is loaded in high-precision hydraulic damper and the dynamic and static test platform of actuator；
Fig. 4 is the structural schematic diagram of guide supporting part in high-precision hydraulic damper and the dynamic and static test platform of actuator；
Fig. 5 is that the part hair of pull pressure sensor part in high-precision hydraulic damper and the dynamic and static test platform of actuator is big
Figure；
Fig. 6 is the test schematic of high-precision hydraulic damper and the dynamic and static test platform of actuator；
Fig. 7 is the structural schematic diagram of rubber pad mounting rack in high-precision hydraulic damper and the dynamic and static test platform of actuator.
In figure: 1- marble testing stand；2- guide rail slide block connecting plate A；3- guide rail slide block connecting plate B；4- connecting plate A；5-
Connecting plate B；6- connecting plate C；7- connecting plate D；8- measured piece；9- pull pressure sensor；10- pull pressure sensor connector；11-
Stator；12- voice coil motor mounting plate；13- mover；14- mover connecting plate；15- guide rail lower plate A；16- guide rail left plate A；17-
Guide rail right side plate A；18- guide rail upper plate A；19- guide rail cushion block；20- guide rail slide block；21- slider connecting plate；22- guide rail lower plate B；
23- guide rail right side plate B；24- guide rail left plate B；25- guide rail upper plate B；26- load；27- load connecting plate A；28- reading head；
29- grating scale；30- positioning plate；31- stop nut；32- positioning screw；33- load connecting plate B；34- flexural pivot；35- is slow
Rush rubber pad；36- rubber pad mounting rack.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-6, in the embodiment of the present invention, a kind of high-precision hydraulic damper and the dynamic and static test of actuator are flat
Platform, including marble experimental bench 1, guide rail slide block connecting plate A2, stator 11, mover 13, guide rail slide block 20 and grating scale 29, Dali
The upper surface of stone experimental bench 1 is equipped with voice coil motor mounting plate 12, and the side wall of voice coil motor mounting plate 12 is equipped with voice coil motor,
Voice coil motor includes stator 11 and mover 13, and stator 11 is fixedly connected with voice coil motor mounting plate 12, the inner rotation of stator 11
It is connected with mover 13, one end of mover 13 is equipped with mover connecting plate 14, and the side wall of mover connecting plate 14 is equipped with sliding block connection
Plate 21, mover connecting plate 14 are connected by slider connecting plate 21 with guide rail slide block, and guide rail slide block is placed in guide rail A slideway, are led
Rail A is air-float guide rail, and system friction and vibration can be effectively reduced in air-float guide rail, reduces measurement error, makes measurement result more
The accurately dynamic and static performance of reaction damper and actuator, guide rail A includes guide rail upper plate A18, guide rail left plate A16, guide rail
It is set below right side plate A17, guide rail lower plate A15, guide rail A there are two guide rail cushion block 19, guide rail slide block 20 is connect with guide rail slide block
Plate A2 is connected, and guide rail slide block connecting plate A2 is connect by flexural pivot attachment device connector with measured piece 8, leads on the right side of measured piece 8
It crosses flexural pivot to connect with guide rail slide block connecting plate B3, flexural pivot attachment device connector includes connecting plate A4 and connecting plate C6 and connection
The flexural pivot connector of plate B5 and connecting plate D7,8 other side of measured piece are connected with connecting plate B5 and connecting plate D7, and sliding with guide rail
Block connecting plate B3 is bolted, and measured piece 8 is damper or actuator, when voice coil motor is run, is generated excitation and is passed to mover
Connecting plate 14 passes to measured piece 8, the other side and guide rail slide block connecting plate of connecting plate B5 and connecting plate D7 by guide rail slide block 20
A2 is connected with guide rail slide block connecting plate B3, and the guide rail slide block connecting plate B3 other end is mounted on pull pressure sensor connector 10
On, the other side of pull pressure sensor connector 10 is equipped with pull pressure sensor 9, the model JLBS- of pull pressure sensor 9
II, the cylinder body of measured piece 8 generates relative motion relative to piston, acquires the tension and compression that piston rod generates using pull pressure sensor 9
Force signal, 9 other side of pull pressure sensor are connected with load, and load merging loads in guide rail B slideway, and load guide rail B includes leading
Rail upper plate B25, guide rail left plate B23, guide rail right side plate B24 and guide rail lower plate B22, load is by load connecting plate A27 and draws
Pressure sensor 9 is connected, and the right side for loading 26 is equipped with positioning plate 30, and load 26 is connect with positioning plate 30 by locating rod 32,
Positioning plate 30 is fixedly connected with the upper surface of marble experimental bench 1, and the side wall of positioning plate 30 loads 26 right end through there is through-hole
It is bolted to connection load connecting plate B33, the right side of load connecting plate B33 is connected by flexural pivot 34 and locating rod 32
It connects, the right end Slender Screw Processing of locating rod 32, major diameter of thread is less than mounting plate through-hole diameter, the limit with there are two in locating rod 32
Nut 31 realizes the cooperation of locating rod 32 Yu positioning plate 30 in such a way that two nuts 31 clamp positioning plate 30.Dynamic is tested
When, locating rod 32 is removed, rubber frame 36 is connected by nut on positioning plate 30, the side wall of rubber standoff 36 is fixedly connected with slow
It rushes rubber pad 35, grating scale 29 is installed on guide rail slide block 20 and load 26, on guide rail right side plate A17 and guide rail right side plate B23
Reading head 28 is installed, grating scale 29 altogether there are two, reading head 28 altogether there are two, be respectively used to the piston rod of detection measured piece 8
With the displacement of hydraulic cylinder, the present apparatus is additionally provided with computer, control room and driver, and computer and control room are electrically connected, driving
Device and voice coil motor are electrically connected, and for driving voice coil motor to run, reading head 28 and computer are electrically connected, pressure sensing
Device 9 and computer are electrically connected, and are applied when voice coil motor is run to measured piece 8 and are motivated, and measured piece 8 is made to generate power and displacement, benefit
The displacement that measured piece 8 is monitored with grating scale 29 is monitored by the stress condition of side part 8 using pull pressure sensor 9, and will be supervised
Force signal, the displacement measured is transmitted to computer and is analyzed and processed, and tests the performance of measured piece 8.
The working principle of the invention is: when testing measured piece 8, measured piece 8 being mounted on connecting plate C6 and drawing
Between pressure sensor connecting piece 10, guarantees that the center line of measured piece 8 is conllinear with system centre line while installation, avoid out
Existing transverse load, measured piece 8 are damper or actuator.
When carrying out static test to damper, locating rod 32 and load 26 are connected by flexural pivot 34, pass through limit
Nut 31 connects locating rod 32 and positioning plate 30, fixed load 26, and system controls voice coil motor and generates high-precision extrinsic motivation, swashs
It encourages and passes to measured piece 8 measured piece 8 is made to generate power and displacement, acquire displacement respectively using pull pressure sensor 9 and grating scale 29
The force signal monitored, displacement are transmitted to computer and are analyzed and processed by signal and force signal, test measured piece 8
Performance.
When carrying out dynamic test to damper, locating rod 32 is removed, rubber frame is bolted on positioning plate 30
36, the side wall of rubber standoff 36 is fixedly connected with buffer rubber gasket 35, as safety backstop protection voice coil motor using safe,
Load 26 can move freely, and system controls voice coil motor and generates high-precision extrinsic motivation, and excitation, which passes to measured piece 8, to be made to be tested
Part 8 generates power and displacement, while load 26 being made to generate fluctuating acceleration, is more truly reflected actual condition, is passed using pressure
Sensor 9 and grating scale 29 acquire displacement signal and force signal respectively, and the force signal monitored, displacement are transmitted to computer
It is analyzed and processed, analyzes the performance of damper.
When carrying out dynamic to actuator and testing, actuator simulates actual condition, when test, fixed voice coil motor, and release
Load, by control room input signal when test, actuator pushes load 26 to generate relative motions, utilizes 9 He of pull pressure sensor
Grating scale 29 acquires displacement signal and force signal respectively, and the force signal monitored, displacement are transmitted to computer and divided
Analysis processing, analyzes the performance of actuator.
It needs to be determined that, by the connection of locating rod 32 load 26 and positioning plate 30, keeping load 26 when load behavior is tested
Fixed, using voice coil motor as determining load, actuator is used as active control device, and control room is to actuator input letter when test
Number, actuator generates power and relative displacement to voice coil motor, acquires force signal respectively using pull pressure sensor 9 and grating scale 29
And displacement signal, the force signal monitored, displacement are transmitted to computer and be analyzed and processed, actuator performance is analyzed.
During the test, by releasing the limitation of 30 pairs of positioning plate loads 26, damper can be simulated to the greatest extent
Actual condition realizes that dynamic is tested.In the test of actuator, fixed voice coil motor, release load, simulation test actual condition
Under actuator performance；Fixed load exports continuous disturbances by voice coil motor, then can test actuator outside arbitrarily determining
Dynamic and static state performance under power load.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. a kind of high-precision hydraulic damper and the dynamic and static test platform of actuator, including marble experimental bench (1), guide rail are sliding
Block connecting plate A(2), stator (11), mover (13), guide rail slide block (20) and grating scale (29), which is characterized in that the marble
Voice coil motor is installed, voice coil motor includes stator (11) and mover (13), one end peace of mover (13) on the left of experimental bench (1)
Equipped with mover connecting plate (14), the side wall of mover connecting plate (14) is equipped with slider connecting plate (21), and mover connecting plate (14) is logical
It crosses slider connecting plate (21) to be connected with guide rail slide block (20), guide rail slide block (20) is placed in guide rail A slideway, and guide rail A is air bearing
The lower section of guide rail, guide rail A is equipped with guide rail cushion block (19), guide rail slide block connecting plate A(2) pass through flexural pivot attachment device connector and quilt
Part (8) connection is surveyed, is connect by flexural pivot with guide rail slide block connecting plate B(3) on the right side of measured piece (8), guide rail slide block connecting plate B(3)
It connects pull pressure sensor connector (10), pull pressure sensor (9) and the load connecting plate A being mounted on the left of load (26)
(27) it connects, in load (26) merging load guide rail B slideway, the right side of load (26) is equipped with positioning plate (30), load and positioning
Plate is connected by locating rod (32), and positioning plate (30) is fixedly connected with the upper surface of marble experimental bench (1), positioning plate (30)
Side wall through there is a through-hole, on the side wall of guide rail slide block (20) and load (26) on grating scale (29) are installed.
2. high-precision hydraulic damper according to claim 1 and the dynamic and static test platform of actuator, which is characterized in that
The guide rail A includes guide rail upper plate A(18), guide rail left plate A(16), guide rail right side plate A(17) and, guide rail lower plate A(15)；Guide rail
Right side plate A(17) on grating reading head (28) are installed.
3. high-precision hydraulic damper according to claim 1 and the dynamic and static test platform of actuator, which is characterized in that
The guide rail slide block (20) is connected with guide rail slide block connecting plate A(2), and is connected with the flexural pivot connector of measured piece (8) side
Connecting plate A(4) and connecting plate C(6) be bolted, the flexural pivot connector of measured piece (8) other side and connecting plate B(5) and even
Fishplate bar D(7) it is connected, and be bolted with guide rail slide block connecting plate B(3).
4. high-precision hydraulic damper according to claim 1 and the dynamic and static test platform of actuator, which is characterized in that
There are two the guide rail cushion block (19) is total.
5. high-precision hydraulic damper according to claim 1 and the dynamic and static test platform of actuator, which is characterized in that
The load guide rail includes guide rail upper plate B(25), guide rail left plate B(24), guide rail right side plate B(23) and guide rail lower plate B(22)；
Guide rail right side plate B(23) on grating reading head (28) are installed.
6. high-precision hydraulic damper according to claim 1 and the dynamic and static test platform of actuator, which is characterized in that
The right end of the load (26) is connect by load connecting plate B(33), flexural pivot (34) with locating rod (32), locating rod (32)
Right end be machined with long screw thread, major diameter of thread is less than the through-hole diameter of positioning plate (30), is arranged that there are two limits in locating rod (32)
Position nut (31).
7. high-precision hydraulic damper according to claim 1 and the dynamic and static test platform of actuator, which is characterized in that
The flexural pivot attachment device connector includes connecting plate A(4) and connecting plate C(6) and connecting plate B(5) and connecting plate D(7).
8. high-precision hydraulic damper according to claim 1 and the dynamic and static test platform of actuator, which is characterized in that
It is connected with rubber frame (36) on the positioning plate (30) by nut thread, the side wall of rubber frame (36) is fixedly connected with buffering rubber
Rubber mat (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810909147.0A CN108956176B (en) | 2018-08-10 | 2018-08-10 | Dynamic and static test platform for high-precision hydraulic shock absorber and actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810909147.0A CN108956176B (en) | 2018-08-10 | 2018-08-10 | Dynamic and static test platform for high-precision hydraulic shock absorber and actuator |
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| Publication Number | Publication Date |
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| CN108956176A true CN108956176A (en) | 2018-12-07 |
| CN108956176B CN108956176B (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810909147.0A Expired - Fee Related CN108956176B (en) | 2018-08-10 | 2018-08-10 | Dynamic and static test platform for high-precision hydraulic shock absorber and actuator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110823542A (en) * | 2019-11-06 | 2020-02-21 | 中车青岛四方机车车辆股份有限公司 | Shock absorber testing device and shock absorber testing method |
| CN114062247A (en) * | 2021-10-13 | 2022-02-18 | 中核核电运行管理有限公司 | Off-line measuring device for friction force of piston of pilot type safety valve control cabinet |
| CN115655548A (en) * | 2022-10-18 | 2023-01-31 | 北京瑞控信科技股份有限公司 | Automatic testing system for static mechanical property of voice coil motor |
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| CN110823542A (en) * | 2019-11-06 | 2020-02-21 | 中车青岛四方机车车辆股份有限公司 | Shock absorber testing device and shock absorber testing method |
| CN110823542B (en) * | 2019-11-06 | 2021-08-20 | 中车青岛四方机车车辆股份有限公司 | Shock absorber testing device and shock absorber testing method |
| CN114062247A (en) * | 2021-10-13 | 2022-02-18 | 中核核电运行管理有限公司 | Off-line measuring device for friction force of piston of pilot type safety valve control cabinet |
| CN115655548A (en) * | 2022-10-18 | 2023-01-31 | 北京瑞控信科技股份有限公司 | Automatic testing system for static mechanical property of voice coil motor |
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Address after: 257045 No. two, 271 North Road, Shandong, Dongying Patentee after: China University of Petroleum (East China) Address before: 510000, science Avenue, Luogang District Science City, Guangdong, 181, A4, ninth to 11, Guangzhou Patentee before: China University of Petroleum (East China) |
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