CN109029814A - Thrust cylinder body test macro and test method - Google Patents
Thrust cylinder body test macro and test method Download PDFInfo
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- CN109029814A CN109029814A CN201810848050.3A CN201810848050A CN109029814A CN 109029814 A CN109029814 A CN 109029814A CN 201810848050 A CN201810848050 A CN 201810848050A CN 109029814 A CN109029814 A CN 109029814A
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- cylinder body
- thrust cylinder
- thrust
- weighing sensor
- fixing seat
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The present invention relates to thrust cylinder body the field of test technology, disclose thrust cylinder body test macro and test method, thrust cylinder body test macro includes the fixing seat of installed thrust cylinder body, pressure test mechanism, transmission mechanism and the adjustable load of load-bearing, the transmission mechanism is mounted in fixing seat, pressure test mechanism is between thrust cylinder body and transmission mechanism, the input terminal of transmission mechanism is connect with pressure test mechanism, and the output end of transmission mechanism and load connect.The present invention can thrust cylinder body to different strength carry out thrust test, it is easy to operate without being replaced.
Description
Technical field
The present invention relates to thrust cylinder body the field of test technology, and in particular to thrust cylinder body test macro and test method.
Background technique
With the increasing degree of manufacturing automation, the equipment of electromechanical integration or mechanism quantity increase, wherein
In mechanical processing process, the linear motion of mechanical structure is relatively common, and thrust cylinder body, which belongs to, realizes mechanical structure linear motion ratio
More stable one kind.Thrust cylinder body is the modular product that servo motor and lead screw are carried out to integrated design, main by watching
Taking motor drives screw rod to be rotated, and is converted into linear motion using nut, final to push object reciprocal straight along guide rail work
Line movement.Thrust cylinder body accurately controls present position and thrust size, is suitable for various accurate deviation-rectifying systems.Currently, pushing away
The maximum thrust that power cylinder body can bear is different, will have a direct impact on the quality and use scope of thrust cylinder body in this way, for this reason, it may be necessary to
Thrust is done to thrust cylinder body and measures examination and durability test.
Existing thrust cylinder body thrust measures examination, the detection of moment is generally carried out using simple thrust meter, due to each
The thrust of thrust cylinder body is different, needs replacing different thrust meters, and to meet the needs of thrust cylinder body, operation is compared in this way
Trouble.
Summary of the invention
The invention is intended to provide thrust cylinder body test macro and test method, can the thrust cylinder body to different strength push away
Power test, it is easy to operate without being replaced.
In order to achieve the above objectives, the present invention adopts the following technical scheme: thrust cylinder body test macro, including installed thrust cylinder
The fixing seat of body, pressure test mechanism, transmission mechanism and the adjustable load of load-bearing, transmission mechanism are mounted in fixing seat, pressure
Mechanism for testing is between thrust cylinder body and transmission mechanism, and the input terminal of transmission mechanism is connect with pressure test mechanism, driver
The output end of structure and load connect.
The principle of this programme is: when practical application, thrust cylinder body being mounted in fixing seat first, when thrust cylinder body is extrapolated
When, the end of thrust cylinder body contacts and is extruded in pressure test mechanism, drives pressure test mechanism to move, due to transmission mechanism
Mechanism is connect with pressure test, and transmission mechanism is moved, and is interacted with load, according to the motion conditions of transmission mechanism,
The load-bearing of load is adjusted, until transmission mechanism and load are in equilibrium state, can be known by pressure test mechanism
The thrust data of thrust cylinder body.
The utility model has the advantages that utilizing thrust by setting fixing seat, pressure test mechanism, transmission mechanism and load in the present invention
Cylinder body acts on pressure test mechanism, can be with the data of quick obtaining thrust, and data are more accurate.Meanwhile using transmission mechanism
As the tie between thrust cylinder body and load, duration transmitting thrust is realized, and according to the motion conditions of transmission mechanism,
The load-bearing of adjustable load, until transmission mechanism and load are in equilibrium state, the thrust of thrust cylinder body available in this way
Data, which is suitable for testing the thrust cylinder body of different thrusts, easy to operate without replacing to device.
Preferably, pressure test mechanism includes weighing sensor, and the output end of weighing sensor is electrically connected with pressure and shows
Device, the side of weighing sensor offer the first mounting hole, and the other side of weighing sensor offers the second mounting hole.By setting
Weighing sensor and pressure display unit are set, the thrust of thrust cylinder body can be used for quickly detecting and be shown, convenient for the thrust
Data are recorded, and are observed and are operated and is more convenient.
Preferably, the lower end surface of weighing sensor is fixedly connected with second connecting rod, offers guide groove in fixing seat, and second
Connecting rod is slided along guide groove.Setting second connecting rod is slided along guide groove, plays guiding to weighing sensor
Effect avoids the contact portion of weighing sensor and thrust cylinder body from deviating, and reduces thrust data error.
Preferably, transmission mechanism includes the mobile rack being slidably connected with fixing seat, is engaged with driving cog on mobile rack
Wheel, transmission gear are engaged with rotate gear, and mobile rack is connect close to one end of fixing seat with weighing sensor.By the way that tooth is arranged
Rack structure is taken turns, the thrust transmitting to thrust cylinder body may be implemented, and gear & rack structure bearing capacity ratio is larger, stable structure
Property it is relatively good, guarantee whole device can work well.
Preferably, it loads as magnetic powder cluth, the output end of magnetic powder cluth is fixedly connected with rotate gear, magnetic powder clutched
Current regulator is electrically connected on device.Magnetic powder cluth is to transmit torque according to electromagnetic principle and using magnetic powder, passes through change
The output electric current of current regulator, can be changed the size of the damping force of magnetic powder cluth, thus realize the adjusting of payload size, this
Sample can be adapted for the thrust cylinder body for testing different thrusts, so that the scope of application of the device is wider.
Preferably, mobile rack is installed with U-shaped bayonet close to one end of thrust cylinder body and pin shaft is connected in U-shaped bayonet
Universal joint, the first screw rod with the cooperation of the first mounting hole is fixedly connected on universal joint, multiple the are arranged on the first screw rod
Second mounting hole of one nut, weighing sensor is connect with thrust cylinder body.
It when needing thrust and pulling force to thrust cylinder body to test, can first start thrust cylinder body, make its inside
Push rod extends to certain stroke, then connects the second mounting hole of the push rod of thrust cylinder body and weighing sensor, using the first spiral shell
The connection of first mounting hole of bar and weighing sensor, later by the gudgeon of universal joint axis connection of the first screw rod end in U-shaped bayonet,
The installation to the structure is just completed in this way.After testing completion, pin shaft is extracted, universal joint is separated with U-shaped bayonet, then will
Weighing sensor disassembles.By structure above, mobile rack, weighing sensor and thrust cylinder body are connected
Connect, can carry out the thrust and pull force calculation of thrust cylinder body, and total transmitting torque ratio is larger, can to thrust cylinder body into
The test of row durability.Structure connection above is compact, and dismantles very convenient.
Preferably, mobile rack is provided with fixed block close to one end of thrust cylinder body, and T shape card slot, T are offered on fixed block
T shape connecting rod is connected in shape card slot, the end of T shape connecting rod and the first mounting hole of weighing sensor connect.The structure connection and
Dismantle it is more convenient, and with pin shaft connection compared with, bearing capacity ratio is larger, it is not easy to crack conditions occurs.
Preferably, fixing seat is equipped with regulating mechanism, and regulating mechanism includes mounting base, adjustment portion and attachment base, adjustment portion
Cross-sectional shape is diamond shape, and adjustment portion includes two first support bars and two second support bars being hinged, the first support
Hinged place between bar and second support bar is connected by screw rod, is arranged with the second nut, two first support bars above screw rod
It is hinged in mounting base, two second support bars are hinged on attachment base, and attachment base is fixedly connected with thrust cylinder body.
Since when testing the thrust of thrust cylinder body, part thrust cylinder interior structure breaks down, thrust cylinder body is pushed away
Bar can not be retracted, simultaneously as thrust cylinder body pushes mobile rack to advance a distance, mobile rack, weighing sensor and be pushed away
Power cylinder body is in the state of clamping, can not disassemble thrust cylinder body.At this point it is possible to turn to the screw rod in regulating mechanism
Dynamic, the other end of such screw rod will drive the hinged place between first support bar and second support bar and move outward, push away in this way
The distance between the rear end of power cylinder body and mounting base gradually become smaller, and the rear end of thrust cylinder body can gradually move back, before thrust cylinder body
End is separated with weighing sensor, and the thrust cylinder body easy removal of failure can be got off.
Preferably, the two sides of the fixing seat horizontal first connecting rod for being fixedly connected with U-shaped respectively is fixedly connected on first connecting rod
There are multiple brackets, spacer support frame is evenly distributed.
The magnetic powder cluth as involved in the device, pressure display unit, current regulator etc. are required to a large amount of electric wire,
And be placed on the ground mostly by electric wire is random now, since faint magnetic field, part electric wire can be generated after wiring harness
It puts and will form coil, so that the heat for strengthening the magnetism in magnetic field, and generating increases, it is random in this way to be stacked on one
It rises, does not utilize heat dissipation, and the magnetic field will affect the work of weighing sensor and magnetic powder cluth, so that the thrust data of detection
Application condition is big.For this purpose, multiple brackets can be arranged near fixing seat, then hang over electric wire is regular on bracket, and
And electric wire is avoided to form closed circuit, such electric wire is convenient for heat dissipation, and the magnetic field generated is weaker, greatly reduces to thrust number
According to influence.
A kind of test method using thrust cylinder body test macro, comprising the following steps:
(1) it installs: weighing sensor is fixedly connected by the first mounting hole with mobile rack, thrust cylinder body is mounted on solid
In reservation, the output end of thrust cylinder body can be corresponding with the second mounting hole of weighing sensor, adjusts thrust cylinder body, weighing and sensing
Device and the same central axes of mobile rack；
(2) test thrust: starting thrust cylinder body pushes weighing sensor first, and weighing sensor pushes mobile rack forward
Mobile, mobile rack drives the transmission gear engaged to be rotated, and drive gears turn moving gear is rotated backward,
Rotate gear drives magnetic powder cluth to rotate, and adjusts the output electric current of current regulator, forms certain resistance in magnetic powder cluth
Buddhist nun's power, until mobile rack stop motion, at this point, reading above the thrust magnitude and current regulator above weighing sensor
Current value, and recorded；
(3) it arranges: thrust cylinder body being disassembled from fixing seat, then arranges data.
The utility model has the advantages that adjusting thrust cylinder body, weighing sensor and mobile rack first by setting test methodology above
Same central axes, it is ensured that the test of thrust cylinder body does not deviate, and the application condition of detection thrust data in this way is small.Later, it is examining
When surveying thrust, is moved using the thrust driving gear & rack structure of thrust cylinder body, transmit certain torque, and it is magnetic powder clutched
Device can change its internal damping force, can quickly adjust the size of load in this way by adjusting electric current so that magnetic powder from
Clutch and thrust cylinder body are in equilibrium state, and final realize carries out precise measurement to the thrust magnitude of thrust cylinder body.The structure is applicable in
It is applied widely in the thrust cylinder body of different thrust sizes, accurate height is tested, and structure is more stable.
Detailed description of the invention
Fig. 1 is the top view of the embodiment 1 of thrust cylinder body test macro of the present invention；
Fig. 2 is the main view of weighing sensor in Fig. 1, second connecting rod and fixing seat cooperation；
Fig. 3 be thrust cylinder body test macro of the present invention embodiment 2 in mobile rack, fixed block, T shape card slot and
The top view of T shape connecting rod cooperation；
Fig. 4 is regulating mechanism in the embodiment 2 of thrust cylinder body test macro of the present invention, first connecting rod, bracket, consolidates
The top view of reservation and the cooperation of thrust cylinder body；
Fig. 5 is the structural schematic diagram for hanging up electric wire in Fig. 4 on first connecting rod and bracket.
Specific embodiment
Below by specific embodiment, the present invention is described in further detail:
Appended drawing reference in Figure of description includes: fixing seat 1, weighing sensor 2, the first screw rod 3, second connecting rod 4, leads
To slot 5, mobile rack 6, transmission gear 7, rotate gear 8, fixed block 9, T shape card slot 10, T shape connecting rod 11, magnetic powder cluth 12,
Current regulator 13, mounting base 14, universal joint 15, attachment base 16, first support bar 17, second support bar 18, screw rod 19, thrust
Cylinder body 20, first connecting rod 21, bracket 22, U-shaped bayonet 23, pin shaft 24.
Embodiment 1
As depicted in figs. 1 and 2, thrust cylinder body test macro, including the fixing seat 1 of installed thrust cylinder body 20, pressure test
Mechanism, transmission mechanism and load, pressure test mechanism include weighing sensor 2, and the model YZC-528 of weighing sensor 2 claims
The output end for retransmitting sensor 2 is electrically connected with pressure display unit, and the left side of weighing sensor 2 offers the first mounting hole, and weighing passes
The right side opening of sensor 2 is equipped with the second mounting hole.The lower end surface of weighing sensor 2 has been bolted second connecting rod 4, in fixing seat 1
Guide groove 5 is offered, second connecting rod 4 is slided along guide groove 5.Transmission mechanism includes mobile rack 6, is opened in fixing seat 1
Equipped with mobile chute, mobile rack 6 slides in mobile chute, and transmission gear 7 is engaged on mobile rack 6, and transmission gear 7 is nibbled
Conjunction has rotate gear 8, and the right end of mobile rack 6 is installed with U-shaped bayonet 23 and universal joint 15, and universal joint 15 is connected by pin shaft 24
It connects in U-shaped bayonet 23, the first screw rod 3 with the cooperation of the first mounting hole is welded on universal joint 15, is arranged on the first screw rod 3
Second mounting hole of two the first nuts, weighing sensor 2 is connect with thrust cylinder body 20.Load is magnetic powder cluth 12, magnetic powder
The output end and rotate gear 8 of clutch 12 are keyed, and are electrically connected with current regulator 13 on magnetic powder cluth 12.
A kind of test method using thrust cylinder body test macro, comprising the following steps:
(1) it installs: weighing sensor 2 being connect by the first mounting hole with mobile rack 6, thrust cylinder body 20 is mounted on solid
In reservation 1, the output end of thrust cylinder body 20 can be corresponding with the second mounting hole of weighing sensor 2, and adjustment thrust cylinder body 20 claims
Retransmit sensor 2 and the same central axes of mobile rack 6；
(2) test thrust: starting thrust cylinder body 20 pushes weighing sensor 2 first, and weighing sensor 2 pushes mobile rack
6 move forward, and mobile rack 6 drives the transmission gear 7 engaged to be rotated, and transmission gear 7 drives rotate gear 8 to carry out
It rotates backward, rotate gear 8 drives magnetic powder cluth 12 to rotate, and adjusts the output electric current of current regulator 13, magnetic powder cluth
Certain damping force is formed in 12, until 6 stop motion of mobile rack, at this point, read the thrust magnitude above weighing sensor 2 with
And the current value above current regulator 13, and recorded；
(3) it arranges: thrust cylinder body 20 being disassembled from fixing seat 1, then arranges data.
Embodiment 2
As shown in Fig. 3, Fig. 4 and Fig. 5, embodiment 2 difference from example 1 is that, the setting of the right end of mobile rack 6
There is fixed block 9, T shape card slot 10 is offered on fixed block 9, T shape connecting rod 11, the end of T shape connecting rod 11 are connected in T shape card slot 10
It is connect with the first mounting hole of weighing sensor 2, thrust cylinder body 20 and the second mounting hole of weighing sensor 2 are not connected to, still
The end of thrust cylinder body 20 can with one side contacts of the second mounting hole of weighing sensor 2 or offset.Structure connection and disassembly ratio
It is more convenient, and compared with pin shaft connection, bearing capacity ratio is larger, it is not easy to crack conditions occurs.
Fixing seat 1 is equipped with regulating mechanism, and regulating mechanism includes mounting base 14, adjustment portion and attachment base 16, adjustment portion 15
Cross-sectional shape is diamond shape, and adjustment portion includes two first support bars 17 and two second support bars 18 being hinged, first
Hinged place between support rod 17 and second support bar 18 is connected by screw rod 19, and screw rod 19 is arranged with the second nut above, and two
A first support bar 17 is hinged in mounting base 14, and two second support bars 18 are hinged on attachment base 16, attachment base 16 with push away
Power cylinder body 20 is bolted.Since when testing the thrust of thrust cylinder body 20, thrust cylinder body 20 internal structure in part breaks down,
The push rod of thrust cylinder body 20 can not be retracted, simultaneously as thrust cylinder body 20 pushes 6 traveling a distance of mobile rack, mobile tooth
Item 6, weighing sensor 2 and thrust cylinder body 20 are in the state of clamping, can not disassemble thrust cylinder body 20.At this point it is possible to
Screw rod 19 in regulating mechanism is rotated, the other end of such screw rod 19 will drive first support bar 17 and second support bar
Hinged place between 18 moves outward, and the distance between the rear end of such thrust cylinder body 20 and mounting base 14 gradually become smaller, and pushes away
The rear end of power cylinder body 20 can gradually move back, and the front end of thrust cylinder body 20 is separated with weighing sensor 2, can be by the thrust of failure
20 easy removal of cylinder body is got off.
The two sides of the fixing seat 1 horizontal first connecting rod 21 for being welded with U-shaped respectively is welded with multiple brackets on first connecting rod 21
22, bracket 22 is spaced evenly distributed, and the cross-sectional shape of bracket 22 is " Y " font, and other shapes are also applied for the device.
Magnetic powder cluth 12, pressure display unit as involved in the device, current regulator 13 etc. are required to largely
Electric wire, and be placed on the ground mostly by electric wire is random now, since faint magnetic field can be generated after wiring harness, part
Electric wire, which is put, will form coil, so that the heat for strengthening the magnetism in magnetic field, and generating increases, it is random in this way to be stacked on
Together, heat dissipation is not utilized, and the magnetic field will affect the work of weighing sensor 2 and magnetic powder cluth 12, so that detection pushes away
Force data application condition is big.For this purpose, multiple brackets 22 can be arranged near fixing seat 1, then hang over electric wire is regular
On bracket 22, and electric wire is avoided to form closed circuit, such electric wire is convenient for heat dissipation, and the magnetic field generated is weaker, drops significantly
The low influence to thrust data.
What has been described above is only an embodiment of the present invention, the common sense such as well known specific technical solution and/or characteristic in scheme
It does not describe excessively herein.It should be pointed out that for those skilled in the art, before not departing from technical solution of the present invention
It puts, several modifications and improvements can also be made, these also should be considered as protection scope of the present invention, these all will not influence this
Invent the effect and patent practicability implemented.The scope of protection required by this application should be based on the content of the claims,
The records such as the specific embodiment in specification can be used for explaining the content of claim.
Claims (10)
1. thrust cylinder body test macro, which is characterized in that fixing seat, pressure test mechanism, transmission including installed thrust cylinder body
Mechanism and the adjustable load of load-bearing, the transmission mechanism are mounted in fixing seat, and pressure test mechanism is located at thrust cylinder body and biography
Between motivation structure, the input terminal of transmission mechanism is connect with pressure test mechanism, and the output end of transmission mechanism and load connect.
2. thrust cylinder body test macro according to claim 1, it is characterised in that: the pressure test mechanism includes weighing
Sensor, the output end of weighing sensor are electrically connected with pressure display unit, and the side of weighing sensor offers the first mounting hole,
The other side of weighing sensor offers the second mounting hole.
3. thrust cylinder body test macro according to claim 2, it is characterised in that: the lower end surface of the weighing sensor is solid
Surely it is connected with second connecting rod, guide groove is offered in fixing seat, second connecting rod is slided along guide groove.
4. thrust cylinder body test macro according to claim 2, it is characterised in that: the transmission mechanism includes and fixing seat
The mobile rack being slidably connected is engaged with transmission gear on mobile rack, and transmission gear is engaged with rotate gear, and mobile rack leans on
One end of nearly fixing seat is connect with weighing sensor.
5. thrust cylinder body test macro according to claim 4, it is characterised in that: the load is magnetic powder cluth, magnetic
The output end of powder clutch is fixedly connected with rotate gear, and current regulator is electrically connected on magnetic powder cluth.
6. thrust cylinder body test macro according to claim 4, it is characterised in that: the mobile rack is close to thrust cylinder body
One end be installed with U-shaped bayonet and pin shaft is connected to universal joint in U-shaped bayonet, be fixedly connected on universal joint and the first peace
The first screw rod of hole cooperation is filled, is arranged with multiple first nuts, the second mounting hole and thrust of weighing sensor on the first screw rod
Cylinder body connection.
7. thrust cylinder body test macro according to claim 4, it is characterised in that: the mobile rack is close to thrust cylinder body
One end be provided with fixed block, T shape card slot is offered on fixed block, T shape connecting rod, the end of T shape connecting rod are connected in T shape card slot
It is connect with the first mounting hole of weighing sensor.
8. thrust cylinder body test macro according to claim 7, it is characterised in that: the fixing seat is equipped with adjusting machine
Structure, regulating mechanism include mounting base, adjustment portion and attachment base, and adjustment portion cross-sectional shape is diamond shape, and the adjustment portion includes phase
Mutually hinged two first support bars and two second support bars, the hinged place between first support bar and second support bar pass through
Screw rod connects, and is arranged with the second nut above screw rod, and two first support bars are hinged in mounting base, two second support bars hinges
It connects on attachment base, attachment base is fixedly connected with thrust cylinder body.
9. described in any item thrust cylinder body test macros according to claim 1~8, it is characterised in that: the two of the fixing seat
The side horizontal first connecting rod for being fixedly connected with U-shaped respectively is fixedly connected with multiple brackets on first connecting rod, and spacer support frame is uniformly arranged
Column.
10. a kind of test method using thrust cylinder body test macro described in claim 5, which is characterized in that including following step
It is rapid:
(1) it installs: weighing sensor being fixedly connected by the first mounting hole with mobile rack, thrust cylinder body is mounted on fixing seat
On, the output end of thrust cylinder body can be corresponding with the second mounting hole of weighing sensor, adjustment thrust cylinder body, weighing sensor and
The same central axes of mobile rack；
(2) test thrust: starting thrust cylinder body pushes weighing sensor first, and weighing sensor pushes mobile rack to Forward
Dynamic, mobile rack drives the transmission gear engaged to be rotated, and drive gears turn moving gear is rotated backward, and turns
Moving gear drives magnetic powder cluth to rotate, and adjusts the output electric current of current regulator, forms certain damping in magnetic powder cluth
Power, until mobile rack stop motion, at this point, reading the electricity above the thrust magnitude and current regulator above weighing sensor
Flow valuve, and recorded；
(3) it arranges: thrust cylinder body being disassembled from fixing seat, then arranges data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810848050.3A CN109029814A (en) | 2018-07-27 | 2018-07-27 | Thrust cylinder body test macro and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810848050.3A CN109029814A (en) | 2018-07-27 | 2018-07-27 | Thrust cylinder body test macro and test method |
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| Publication Number | Publication Date |
|---|---|
| CN109029814A true CN109029814A (en) | 2018-12-18 |
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ID=64646452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810848050.3A Pending CN109029814A (en) | 2018-07-27 | 2018-07-27 | Thrust cylinder body test macro and test method |
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| Country | Link |
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| CN110186609A (en) * | 2019-07-09 | 2019-08-30 | 东北电力大学 | Two dimensional wireless passive sensor is decoupled between dimension |
| CN114136521A (en) * | 2021-11-26 | 2022-03-04 | 西安微电机研究所 | Device and method for testing push-pull force and stroke of linear driving motor |
| CN114152386A (en) * | 2020-09-08 | 2022-03-08 | 北京康斯特仪表科技股份有限公司 | Single-piston type dynamic friction supercharging pressure regulating device |
| CN114397053A (en) * | 2022-01-25 | 2022-04-26 | 西安微电机研究所有限公司 | Linear drive motor push-pull force and stroke testing device |
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| CN114152386A (en) * | 2020-09-08 | 2022-03-08 | 北京康斯特仪表科技股份有限公司 | Single-piston type dynamic friction supercharging pressure regulating device |
| CN114136521A (en) * | 2021-11-26 | 2022-03-04 | 西安微电机研究所 | Device and method for testing push-pull force and stroke of linear driving motor |
| CN114397053A (en) * | 2022-01-25 | 2022-04-26 | 西安微电机研究所有限公司 | Linear drive motor push-pull force and stroke testing device |
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Application publication date: 20181218 |
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| RJ01 | Rejection of invention patent application after publication |