CN207817165U - It hinders to execute system speed mutation and prior-warning device - Google Patents
It hinders to execute system speed mutation and prior-warning device Download PDFInfo
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- CN207817165U CN207817165U CN201820284761.8U CN201820284761U CN207817165U CN 207817165 U CN207817165 U CN 207817165U CN 201820284761 U CN201820284761 U CN 201820284761U CN 207817165 U CN207817165 U CN 207817165U
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- rod
- bar
- fixing groove
- displacement sensor
- type displacement
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Abstract
The utility model discloses hinder to execute system speed mutation and prior-warning device, it is related to a kind of the execution systematic protection and detection device of uniform motion, including the execution bar moved in a straight line, and at least two rod-pulling type displacement sensor, the rod-pulling type displacement sensor is vertically arranged, and the execution bar is provided with sliding slot, further includes protective cover, two middle side part trepanning of the protective cover, which is surrounded, executes bar, and supported hole is provided with above side；Further include having holddown spring, friction pad, the friction pad is attached to the upper surface for executing bar；At least two fixing groove is arranged in the supersonic motor head cover；It is 1,/15 1/10 central circulars that the arc length between the surface of swivel becket center loop wire, the adjacent fixing groove center of circle, which is arranged, in the fixing groove.The utility model can realize real-time detection of the supersonic motor including start and stop and rotary state；It can be while reduction executing agency velocity jump endangers, it is ensured that execute the normal use of bar.
Description
Technical field
The utility model is related to the execution systematic protections and detection device of a kind of uniform motion, and in particular to obstruction executes system
System velocity jump and prior-warning device.
Background technology
Supersonic motor is applied to micro-displacement driving device, i.e. micro-displacement supersonic motor, this motor is suitable for small position
Shifting movement can be driven with nano-grade displacement.It can be used for electron microscope or scanning tunneling microscope, and spread out for doing grating
It penetrates in groove, interference spectroscope scanning, the graphical analysis of celestial body constellation and detection, high precision displacement detection and molecule measuring apparatus.
But during supersonic motor use, there is a problem of that control is difficult, this is because the particularity of piezoelectric material, rubbing
The problems such as wiping fever and environmental change, drives the frictional force of rotor that will generate serious nonlinear change.This variation makes control
The difficulty of motor uniform rotation greatly increases.Therefore, supersonic motor is usually likely to occur velocity jump, for executing system
For, how move along a straight line in supersonic motor driving executing agency along with risk, therefore, when velocity jump occurs,
Effective inhibition can be generated, it is current urgent need to solve the problem to reduce the harm that velocity jump is brought.Meanwhile in ultrasound
During wave motor use, there is a problem of control difficulty, this is because the particularity of piezoelectric material, frictional heating and environment
The problems such as variation, drives the frictional force of rotor that will generate serious nonlinear change.This variation makes control motor uniform rotation
Difficulty greatly increase.Further, since the particularity of piezoelectric material so that the required driving electricity of each ultrasonic motor
Source is different from, in this way, motor and power supply must be mating one by one, is unfavorable for mass producing.Therefore, it is possible to detect ultrasonic wave electricity
The equipment of machine internal distortions state, and then the rotary state parameter of supersonic motor is obtained in real time, it is current each ultrasonic wave factory
Family there is an urgent need to solve the problems, such as.
Utility model content
The technical problem to be solved by the utility model is to provide acting in opposition when velocity jump and ultrasonic wave can be transported
The device of row state-detection is, and it is an object of the present invention to provide obstruction execution system speed mutation and prior-warning device, solve the above problems.
The utility model is achieved through the following technical solutions：
It hinders to execute system speed mutation and prior-warning device, including the execution bar and at least two pull rod moved in a straight line
Formula displacement sensor, the rod-pulling type displacement sensor are vertically arranged, and the initial length of pull rod is supersonic motor head cover upper table
To the distance of swivel becket, the execution bar is provided with sliding slot in face, and the sliding slot coordinates with the slow resetting apparatus on connecting rod one end；
Further include protective cover, two middle side part trepanning of the protective cover, which is surrounded, executes bar, and supported hole is provided with above side；The connecting rod is another
One end is stretched into across the supported hole in protective cover, and is connected with holddown spring, friction pad in turn below the connecting rod other end,
The friction pad is attached to the upper surface for executing bar；At least two fixing groove is arranged in the supersonic motor head cover；The fixing groove is set
It is 1/15-1/10 central circular to set the arc length between the surface of swivel becket center loop wire, the adjacent fixing groove center of circle, described
The pull rod of rod-pulling type displacement sensor is contacted across fixing groove with swivel becket.In supersonic motor straight line executing mechanism, speed
Mutation, which normally results in, to be executed bar and pops, and upsets cooperation rhythm, the prior art usually all use voltage stabilization and current stabilization circuit into
The stabilization of row supersonic motor, but this method still suffers from and faces risk out of control, therefore usually coordinate the hand of cyclic check
Duan Jinhang risk-aversions.But this is a kind of systematic risk, if do not taken preventive measures, it will from when velocity jump occurs
To chain reaction, makes subsequent execution step confusion reigned, cause damages.Since the concept of velocity jump is relative concept, fit
Velocity jump at the uniform velocity executing agency.In the utility model, executes bar and moves in a straight line, sliding slot is driven to move in a straight line,
Sliding slot keeps coordinating with the slow resetting apparatus moment in connecting rod, but slow resetting apparatus keeps quiet when executing bar uniform motion
Only.The protective cover surprisingly interferes with connecting rod and its each section of connection for preventing, and exterior space is isolated；The supported hole
For making connecting rod keep tilting, active force and reaction force are formed with the gravity of connecting rod, makes connecting rod only can be by changing
Become the angle of inclination of connecting rod, controls the height of the connecting rod other end.Using the holddown spring as the connecting rod other end
Pressure conduction intermediate member is in order to avoid being passed in connection rod pressure without the connecting rod other end is directly connected with compression pad
When leading, since the direction of the power of connecting rod offer is not that straight down, connecting rod can be avoided to be padded with compression using holddown spring
Fractureing for connecting rod is caused when generating laterally opposed displacement due to being rigidly attached to when cooperation, improves the service life of connecting rod.
The friction pad forms friction pair after the normal pressure conducted by compressed spring, with bar is executed, to avoid executing bar speed
There is no any precautionary measures when mutation, causes the serious consequences such as the dislocation of follow-up mechanism.The degree for executing the velocity jump of bar is got over
Greatly, the frictional force provided by the utility model friction pad is bigger, so more efficiently reduction execution system due to speed it is prominent
Harm caused by change.At least two rod-pulling type displacement sensor and the arc length for limiting the adjacent fixing groove center of circle, can effectively survey
Determine the Parameters variation of the adjacent position of swivel becket, i.e., according to the variation of the frequency synthesis of at least two rod-pulling type displacement sensor or
Person's phase difference, in conjunction with the arc length between the adjacent fixing groove center of circle be 1/15-1/10 central circular, fixing groove is arranged in swivel becket
The restriction of the surface of center loop wire can effectively go out the angular speed of swivel becket, and then extrapolate the rotating speed of supersonic motor.It draws
It is in order to make pull rod fall naturally using gravity, be close to swivel becket, and due to swivel becket that rod-type displacement sensor, which is vertically arranged,
Supporting role, the initial length of pull rod is distance of the supersonic motor head cover upper surface to swivel becket.The adjacent fixing groove center of circle
Between arc length be 1/15-1/10 central circular be according to supersonic motor starting and decaying oscillating region measure, no
Slightly different for same supersonic motor, the range of mensuration distance is thus defined, to ensure the real-time of supersonic motor start and stop
Detection.
Further, the friction pad uses friction material.Friction pad is absorbed by rubbing or passing power, therefore selects
Friction material and not General Purpose Rubber, can just have higher frictional strength, make a response in time to velocity jump.Friction material
Belong to macromolecule trielement composite material, including adhesive, strengthening part, conditioning agent or compounding agent, generally use asbestos friction material
Material selects but does not limit NAO friction materials, powder metallurgy friction material.
Further, both sides are provided with obstruction hole, the obstruction Kong Yuhuan resetting apparatuses cooperation inside the sliding slot；It is described slow
Resetting apparatus is also associated with one end of resetting spring, and the other end of the resetting spring is fixed on protective cover.Executing, bar is even
When speed movement, slow resetting apparatus should be since the effect of sliding slot be with executing bar uniform motion, but after being arranged and hindering hole, to slow multiple
Position device is hindered, and in uniform motion, slow resetting apparatus is due to hindering the effect in hole to maintain original spatial position, only
Have in velocity jump, due to the unexpected increase of instantaneous impulse so that slow resetting apparatus is mobile certain in the same direction with bar is executed
Distance is further ensured that the reliability of the utility model to make subsequent mechanism action.The slow resetting apparatus completes speed
After the execution action that mutation hinders, by the resetting spring, slow resetting apparatus is made to be in initial when executing bar uniform motion
Position avoids after reducing execution bar velocity jump because not resetting in time, caused to cross obstruction problem.
Further, the fixing groove inner surface is provided with the isolation clamp device of annular.Since supersonic motor head cover is set
Fixed fixing groove plays steady brace formula displacement sensor, avoids wobble effects testing result of the sensor in detection process,
Therefore the isolation such as dust, steam, electrostatic, limit, security measure are prevented, needing additionally to increase device could realize, preferably but not
It is limited to the realization of antistatic rubber ring.
Further, the rod-pulling type displacement sensor has runback bit function, and the original state of pull rod is stretching state.Institute
It states runback bit function and can further ensure that the pull rod of rod-pulling type displacement sensor is contacted with swivel becket, improve accuracy of detection.
Further, the pull rod bottom end of the rod-pulling type displacement sensor is equipped with taper sheath.Due to turning for supersonic motor
Rotating ring is taken exercises as compound motion that is vertical and circumferentially combining, when supersonic motor rotates, swivel becket and rod-pulling type displacement
Sensor pull rod contact face be inclined-plane, and traditional rod-pulling type displacement sensor be cylinder, therefore its bottom with rotation
Ring can be only formed point contact when contacting, and be easy to happen sideslip.Taper sheath is installed in the pull rod bottom end of rod-pulling type displacement sensor
Afterwards, make contact of the pull rod bottom end with swivel becket become line from point contact to contact, the precision of detection can be effectively improved.
The utility model compared with prior art, has the following advantages and advantages：
1, the utility model hinders to execute system speed mutation and prior-warning device, limits the arc between the adjacent fixing groove center of circle
A length of 1/15-1/10 central circular realizes real-time detection of the supersonic motor including start and stop and rotary state；
2, the utility model hinders to execute system speed mutation and prior-warning device, using the secondary formation of friction, to executing bar
It is hindered, it can be while reduction executing agency velocity jump endangers, it is ensured that execute the normal use of bar；
3, the utility model hinders to execute system speed mutation and prior-warning device, using at least two rod-pulling type displacement sensing
Device is detected the swivel becket of supersonic motor, can efficiently use the operating status that detection parameters obtain supersonic motor.
Description of the drawings
Attached drawing described herein is used for providing further understanding the utility model embodiment, constitutes the one of the application
Part does not constitute the restriction to the utility model embodiment.In the accompanying drawings：
Fig. 1 is a kind of structural schematic diagram of embodiment of the utility model；
Fig. 2 is a kind of sectional view of the execution bar part of embodiment of the utility model；
Fig. 3 is a kind of sectional view of the supersonic motor part of embodiment of the utility model；
Fig. 4 is a kind of vertical view of the supersonic motor part of embodiment of the utility model.
Label and corresponding component names in attached drawing：
1- executes bar, and 2- protective covers, 3- friction pads, 4- holddown springs, 5- sliding slots, 6- connecting rods, 7- supported holes, 8- delays multiple
Position device, 9- obstructions hole, 10- resetting springs, 11- rod-pulling type displacement sensors, 12- head covers, 13- fixing grooves, 14- swivel beckets,
Clamp device, 16- taper sheaths is isolated in 15-.
Specific implementation mode
To make the purpose of this utility model, technical solution and advantage be more clearly understood, with reference to embodiment and attached drawing,
The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this
Utility model is not intended to limit the scope of the present invention.
Embodiment
As shown in Figs 1-4, the utility model hinders to execute system speed mutation and prior-warning device, including move in a straight line
It executes bar 1 and at least two rod-pulling type displacement sensor 11, the rod-pulling type displacement sensor 11 is vertically arranged, at the beginning of pull rod
Beginning length is distance of 12 upper surface of supersonic motor head cover to swivel becket 14, and the execution bar 1 is provided with sliding slot 5, the cunning
Slot 5 coordinates with the slow resetting apparatus 8 on 6 one end of connecting rod；Further include protective cover 2,2 liang of middle side part trepannings of the protective cover are surrounded
Bar 1 is executed, supported hole 7 is provided with above side；6 other end of the connecting rod is stretched into across the supported hole 7 in protective cover 2, and
It is connected with holddown spring 4, friction pad 3 in turn below 6 other end of connecting rod, the friction pad 3 is attached to the upper table for executing bar 1
Face；At least two fixing groove 13 is arranged in the supersonic motor head cover 12；The fixing groove 13 is arranged in 14 center loop wire of swivel becket
Surface, the arc length between 13 center of circle of adjacent fixing groove is 1/15-1/10 central circular, the rod-pulling type displacement sensor
11 pull rod is contacted across fixing groove 13 with swivel becket 14.In supersonic motor straight line executing mechanism, velocity jump would generally
Cause to execute popping for bar 1, upset cooperation rhythm, the prior art usually all uses voltage stabilization and current stabilization circuit to carry out ultrasonic wave electricity
The stabilization of machine, but this method still suffers from and faces risk out of control, therefore usually the means of cooperation cyclic check carry out risk
Prevent.But this is a kind of systematic risk, if do not taken preventive measures, it will is played when velocity jump occurs chain anti-
It answers, makes subsequent execution step confusion reigned, cause damages.Since the concept of velocity jump is relative concept, it is suitable at the uniform velocity
The velocity jump of executing agency.In the utility model, execute bar 1 move in a straight line, drive sliding slot 5 move in a straight line, sliding slot 5 with
8 moment of slow resetting apparatus in connecting rod 6 keeps cooperation, but the remains stationary when executing 1 uniform motion of bar of slow resetting apparatus 8.
The protective cover 2 is used to prevent unexpected each section for interfering with connecting rod 6 and its connection, and exterior space is isolated；The supported hole 7
For making connecting rod 6 keep tilting, active force and reaction force are formed with the gravity of connecting rod 6, makes connecting rod 6 that can only pass through
Change the angle of inclination of connecting rod 6, controls the height of 6 other end of connecting rod.It is another as connecting rod 6 using the holddown spring 4
The pressure conduction intermediate member of one end is in order to avoid in connecting rod without 6 other end of connecting rod is directly connected with compression pad
When 6 pressure conduction, since the direction of the power of the offer of connecting rod 6 is not straight down, connecting rod can be avoided using holddown spring 4
6 cause fractureing for connecting rod 6 when generating laterally opposed displacement due to being rigidly attached to when coordinating with compression pad, improve connecting rod 6
Service life.The friction pad 3 forms friction pair after the normal pressure conducted by compressed spring, with bar 1 is executed, to keep away
Exempt from there is no any precautionary measures when executing 1 velocity jump of bar, causes the serious consequences such as the dislocation of follow-up mechanism.Execute the speed of bar 1
The degree for spending mutation is bigger, and the frictional force provided by the utility model friction pad 3 is bigger, and then more efficiently reduction executes
System is due to harm caused by velocity jump.The rod-pulling type displacement sensor 11 uses but does not limit miran KTC1 straight lines position
Displacement sensor, the supersonic motor use but not limit type SHINSEI supersonic motors.At least two rod-pulling type displacement sensing
Device 11 and the arc length for limiting 13 center of circle of adjacent fixing groove can effectively measure the Parameters variation of the adjacent position of swivel becket 14,
That is the variation according to the frequency synthesis of at least two rod-pulling type displacement sensor 11 or phase difference, justify in conjunction with adjacent fixing groove 13
Arc length between the heart is 1/15-1/10 central circular, the limit in the surface of 14 center loop wire of swivel becket is arranged in fixing groove 13
It is fixed, it can effectively go out the angular speed of swivel becket 14, and then extrapolate the rotating speed of supersonic motor.Rod-pulling type displacement sensor 11 hangs down
Straight setting is to be close to swivel becket 14 to make pull rod fall naturally using gravity, and due to the supporting role of swivel becket 14, draw
The initial length of bar is distance of 12 upper surface of supersonic motor head cover to swivel becket 14.Arc between 13 center of circle of adjacent fixing groove
A length of 1/15-1/10 central circular is that the oscillating region for originating and decaying according to supersonic motor measures, different ultrasounds
Slightly different for wave motor, thus defines the range of mensuration distance, to ensure the real-time detection of supersonic motor start and stop.
The friction pad 3 uses friction material.Friction pad 3 is absorbed by rubbing or passing power, therefore selects friction
Material and General Purpose Rubber cannot be selected, can just have higher frictional strength, make a response in time to velocity jump.Friction material
Belong to macromolecule trielement composite material, including adhesive, strengthening part, conditioning agent or compounding agent, generally use asbestos friction material
Material selects but does not limit NAO friction materials, powder metallurgy friction material.
5 inside both sides of the sliding slot, which are provided with, hinders hole 9, and the obstruction hole 9 coordinates with slow resetting apparatus 8；It is described slow multiple
Position device 8 is also associated with one end of resetting spring 10, and the other end of the resetting spring 10 is fixed on protective cover 2.It is executing
When 1 uniform motion of bar, delaying resetting apparatus 8 should be since the effect of sliding slot 5 be with execution 1 uniform motion of bar, but is arranged and hinders hole 9
Afterwards, slow resetting apparatus 8 is hindered, in uniform motion, slow resetting apparatus 8 is due to hindering the effect in hole 9 to maintain originally
Spatial position, only in velocity jump, due to the unexpected increase of instantaneous impulse so that slow resetting apparatus 8 is with executing bar 1
Mobile a certain distance is further ensured that the reliability of the utility model to make subsequent mechanism action in the same direction.It is described slow multiple
After position device 8 completes the execution action that velocity jump hinders, by the resetting spring 10, so that slow resetting apparatus 8 is in and execute
Initial position when 1 uniform motion of bar avoids after reducing execution 1 velocity jump of bar because not resetting in time, caused
Cross obstruction problem.
13 inner surface of the fixing groove is provided with the isolation clamp device 15 of annular.Since supersonic motor head cover 12 is set
Fixing groove 13 play steady brace formula displacement sensor 11, avoid sensor in detection process wobble effects detection knot
Fruit, therefore prevent the isolation such as dust, steam, electrostatic, limit, security measure, needing additionally to increase device could realize, preferably but
It is not limited to the realization of antistatic rubber ring.
The rod-pulling type displacement sensor 11 has runback bit function, and the original state of pull rod is stretching state.It is described from
Reset function can further ensure that the pull rod of rod-pulling type displacement sensor 11 is contacted with swivel becket 14, improve accuracy of detection.
The pull rod bottom end of the rod-pulling type displacement sensor 11 is equipped with taper sheath 16.Due to the swivel becket of supersonic motor
14 take exercises as compound motion that is vertical and circumferentially combining, when supersonic motor rotates, swivel becket 14 and rod-pulling type displacement
Sensor 11 pull rod contact face be inclined-plane, and traditional rod-pulling type displacement sensor 11 be cylinder, therefore its bottom with
Swivel becket 14 can be only formed point contact when contacting, and be easy to happen sideslip.It is installed in the pull rod bottom end of rod-pulling type displacement sensor 11
After having taper sheath 16, so that pull rod bottom end is become line from point contact with the contact of swivel becket 14 and contact, detection can be effectively improved
Precision.
Above-described specific implementation mode, to the purpose of this utility model, technical solution and advantageous effect carried out into
One step is described in detail, it should be understood that the foregoing is merely specific embodiment of the present utility model, is not used to limit
Determine the scope of protection of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced
It changes, improve, should be included within the scope of protection of this utility model.
Claims (6)
1. hindering to execute system speed mutation and prior-warning device, including the execution bar (1) and at least two that move in a straight line are drawn
Rod-type displacement sensor (11), the rod-pulling type displacement sensor (11) are vertically arranged, and the initial length of pull rod is ultrasonic wave electricity
Distance of machine cap (12) upper surface to swivel becket (14), which is characterized in that the execution bar (1) is provided with sliding slot (5), described
Sliding slot (5) coordinates with the slow resetting apparatus (8) on connecting rod (6) one end；Further include protective cover (2), protective cover (2) both sides
Middle part trepanning, which is surrounded, executes bar (1), and supported hole (7) is provided with above side；Connecting rod (6) other end passes through the supported hole
(7) it stretches into protective cover (2), and holddown spring (4), friction pad (3), institute is connected in turn below connecting rod (6) other end
It states friction pad (3) and is attached to the upper surface for executing bar (1)；Supersonic motor head cover (12) setting at least two fixing groove (13)；
The arc length that the fixing groove (13) is arranged between the surface of swivel becket (14) center loop wire, adjacent fixing groove (13) center of circle is
The pull rod of a central circular, the rod-pulling type displacement sensor (11) passes through fixing groove (13) and swivel becket (14)
Contact.
2. obstruction according to claim 1 executes system speed mutation and prior-warning device, which is characterized in that the friction pad
(3) friction material is used.
3. obstruction according to claim 1 executes system speed mutation and prior-warning device, which is characterized in that the sliding slot
(5) internal both sides, which are provided with, hinders hole (9), and the obstruction hole (9) coordinates with slow resetting apparatus (8)；The slow resetting apparatus (8)
It is also associated with one end of resetting spring (10), the other end of the resetting spring (10) is fixed on protective cover.
4. obstruction according to claim 1 executes system speed mutation and prior-warning device, which is characterized in that the fixing groove
(13) inner surface is provided with the isolation clamp device (15) of annular.
5. obstruction according to claim 1 executes system speed mutation and prior-warning device, which is characterized in that the rod-pulling type
Displacement sensor (11) has runback bit function, and the original state of pull rod is stretching state.
6. hindering to execute system speed mutation and prior-warning device according to claim 1 or 5, which is characterized in that the drawing
The pull rod bottom end of rod-type displacement sensor (11) is equipped with taper sheath (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820284761.8U CN207817165U (en) | 2018-03-01 | 2018-03-01 | It hinders to execute system speed mutation and prior-warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820284761.8U CN207817165U (en) | 2018-03-01 | 2018-03-01 | It hinders to execute system speed mutation and prior-warning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207817165U true CN207817165U (en) | 2018-09-04 |
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ID=63320325
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820284761.8U Expired - Fee Related CN207817165U (en) | 2018-03-01 | 2018-03-01 | It hinders to execute system speed mutation and prior-warning device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114624546A (en) * | 2022-05-13 | 2022-06-14 | 合肥航太电物理技术有限公司 | Mobile L-band HPM test device |
-
2018
- 2018-03-01 CN CN201820284761.8U patent/CN207817165U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114624546A (en) * | 2022-05-13 | 2022-06-14 | 合肥航太电物理技术有限公司 | Mobile L-band HPM test device |
| CN114624546B (en) * | 2022-05-13 | 2022-08-02 | 合肥航太电物理技术有限公司 | Mobile L-band HPM test device |
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