CN102865987A - Plane static pressure type vibration transferring and decoupling device and tri-axial vibration composite experiment table - Google Patents
Plane static pressure type vibration transferring and decoupling device and tri-axial vibration composite experiment table Download PDFInfo
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- CN102865987A CN102865987A CN2012103438752A CN201210343875A CN102865987A CN 102865987 A CN102865987 A CN 102865987A CN 2012103438752 A CN2012103438752 A CN 2012103438752A CN 201210343875 A CN201210343875 A CN 201210343875A CN 102865987 A CN102865987 A CN 102865987A
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Abstract
The invention relates to a tri-axial vibration composite experiment table and a plane static pressure type vibration transferring and decoupling device, wherein the experiment table comprises a working table top; and plane static pressure type vibration transferring and decoupling devices and vibration generators are connected in the direction of X, Y and X axes of the work table top. The plane static pressure type vibration transferring and decoupling device is characterized by consisting of a sliding block and a sliding seat via sliding connection; a sliding gap is arranged in a sliding surface; during the work, high-pressure oil is filled in the sliding gap through an oil filling channel to form a static pressure oil slick; as the static pressure oil slick has good rigidity under high pressure conditions, the sliding between the sliding block and the sliding seat is not obstructed. When a coaxial vibration generator generates high-frequency vibration and thrust, the vibration frequency and the thrust are transferred through a direction vertical to the static pressure oil slick; when a hetero-axial vibration generator generates high-frequency vibration and thrust, the decoupling is realized through the sliding between the sliding block and the sliding seat, so that the aim of combining the lossless transferring and the effective decoupling is realized to the greatest extent.
Description
Technical field
The present invention relates to dynamic environmental test equipment, be specifically related to a kind of for the biography that realizes testing table that X, Y, Z three-axial vibration are compound and the testing table decoupling device that shakes.This testing table can be used for realizing X, Y, three vibration environments that axially work alone of Z, also can be used for realizing any two axially or X, Y, three compound vibration environment of axially working simultaneously of Z.
Background technology
The purpose of vibration test is the oscillating load that manual simulation's product may be subjected in transportation, storage, use procedure in testing laboratory and the impact that test specimen is produced thereof, and examines its adaptability.Conventional test method is to use single shaft to encourage to some directions of vibration rig to product.But in the physical environment of reality, the vibration that product suffers and impact are multi-direction simultaneous compound vibration environment, for example aircraft is in flight course, and the vibration that engine operation produces and aerodynamic noise are multi-direction compound vibration environment to the impact of Flight Vehicle Structure and parts generation thereof.In addition, vehicle meets with in the process of moving jolts and the naval vessel suffers wave under changeable sea situation impact etc. is not always the case.These all are that multiaxis under the complicated environmental condition is to compound vibration.Because the restriction of testing equipment, test method can only adopt single shaft respectively each axially to be tested to vibration rig, examined the most afterwards the adaptability of product in the past.But conventional single shaft is relatively poor to the compound vibration reductibility to the multiaxis under these complicated environmental conditions to vibration test, can not reflect the truth that product suffers in actual environment.
Along with the further raising of dynamic environmental test requirement and the continuous renewal of test condition and means, people have developed a kind of three vibration composite test equipment that axially encourage simultaneously that can be used for.Chinese patent CN101487765B Granted publication a name be called " three-axial vibration composite testing apparatus ", the patent No. is the patent of invention of 200910024507.X.In this patent, what be used for that the biography of connecting working table face and vibration machine shakes that decoupling device adopts is linear guide rail structure.In three-axial vibration composite testing equipment, passing the decoupling device that shakes is the critical component that transmits each axial vibration and thrust, and its performance directly affects the transmission effect of each axial vibration frequency and thrust.Although above-mentioned patent adopts line slideway simple in structure as the biography decoupling device that shakes, easily realize, there is following shortcoming: first, owing to having the gap in the line slideway, poor rigidity on direction of transfer, the easy distortion of transmitting vibrations frequency and thrust, distortion is larger when particularly transmitting dither; The second, there is mechanical friction in line slideway in decoupling zero, and long-term work is is easily worn and torn, so poor reliability, and serviceable life is short; The 3rd, because line slideway self structure limitation, load-bearing capacity, resistance to capsizing and offset load resistance are all relatively poor when transmitting vibrations frequency and thrust.For this reason, how effectively to address these problems is the problem that those skilled in the art study always.
Summary of the invention
The invention provides a kind of plane static pressure type and pass shake decoupling device and three-axial vibration composite testing platform, its objective is to solve the existing the problems referred to above that exist in the decoupling device that shakes that pass, realize to greatest extent harmless the transmission and the effective target of decoupling zero combination.
For achieving the above object, the technical scheme that plane of the present invention static pressure type passes the decoupling device employing of shaking is: a kind of plane static pressure type passes the decoupling device that shakes, and is comprised of sliding shoe and sliding seat two parts.
Described sliding shoe is provided with slide block and linking arm, the outside surface of slide block is provided with the first slip plane and the second slip plane, the first slip plane and the second slip plane are parallel to each other, and on slide block back-to-back layout, one end of linking arm is fixedly connected with slide block, and the other end of linking arm is as shake the first link of decoupling device of biography.
Described sliding seat is provided with the casing that can hold described slide block, direction and the position of corresponding described the first slip plane are provided with the 3rd slip plane on the cabinet wall, direction and the position of corresponding described the second slip plane are provided with the 4th slip plane, and the direction of corresponding described linking arm and position are provided with window on the casing wall; Under confined state, described slide block is arranged in cabinets cavity, and the other end of linking arm stretches out the set window from the casing wall, the first slip plane on the slide block and the 3rd slip plane on the cabinet wall are slidingly matched, has the first gap on this face that is slidingly matched, the second slip plane on the slide block and the 4th slip plane on the cabinet wall are slidingly matched, and have the second gap on this face that is slidingly matched; Described sliding seat is provided with the second link that passes the decoupling device that shakes.
In described sliding shoe and the sliding seat, one is provided with oil hole and oiling passage arbitrarily, oil hole is located at the surface of one, the oiling passage is located in the body of one, one end of oiling passage is communicated with oil hole, the other end extends to described the first gap and the second gap, forms the plane static pressure type with this between sliding shoe and sliding seat and passes the decoupling-structure that shakes.
The related content that above-mentioned plane static pressure type passes in the decoupling device technical scheme of shaking is explained as follows:
1. pass the decoupling device that shakes and be a kind of particular component in the dynamic environmental test equipment, its effect is to transmit each axial vibration and thrust, only axially or in the three-axial vibration composite testing platform uses two generally speaking.Be applied to two axially or during the three-axial vibration composite testing platform, the decoupling device that biography need to be shaken is connected between work top and the vibration machine, therefore on shaking decoupling device, biography should have the first link and the second link, the first link is located on the sliding shoe in the such scheme, and the second link is provided with on the sliding seat.
2. in the technique scheme, in order to make injection the first gap and the second gap mesohigh oil after finishing rigidity oil film support task, have the loop, in described sliding shoe and sliding seat, the two be provided with spill port and drainback passage, spill port is located at the two surface, drainback passage is located in the two body, one end of drainback passage is communicated with spill port, the other end of drainback passage is communicated with cabinets cavity, cabinets cavity is communicated with described the first gap and the second gap, forms way to cycle oil with this.
3. in the technique scheme, described casing is surrounded by cover plate, side plate and base plate, and described window is located at the central authorities of cover plate, and the splicing construction of casing adopts one of following scheme:
The first scheme is: cover plate and base plate are individual member, and side plate is comprised of two long side plates and two short side plates, and casing fixedly is put together by a cover plate, two long side plates, two short side plates and a base plate;
Alternative plan is: cover plate and base plate are individual member, and side plate is made of a rectangle frame, and casing fixedly is put together by side plate and a base plate of a cover plate, a rectangle frame;
Third party's case is: cover plate is individual member, and side plate and base plate are integral type the first open top container, and wherein, side plate is a rectangle frame, and casing fixedly is put together by cover plate and integral type the first open top container;
Cubic case is: base plate is individual member, and side plate and cover plate are integral type the second open top container, and wherein, side plate is a rectangle frame, and casing is put together by base plate and integral type the second open top container.
4. in the technique scheme, when window is opened in cover plate central authorities, a soft sealing and dustproof cover can be set, the top of sealing and dustproof cover is provided with through hole, through hole is enclosed within on the described linking arm and relative linking arm is fixed, and sealing and dustproof cover periphery is fixing on the cover board.
5. in the technique scheme, in order to utilize the fluid Throttle Principle to improve the oil pressure in the first gap and the second gap and to keep the stable of oil pressure, can be equipped with oil pocket in the connectivity part in oiling passage and described the first gap and the second gap, be provided with flow controller near in the oiling passage of oil pocket.
For achieving the above object, the technical scheme that three-axial vibration composite testing platform of the present invention adopts is: a kind of three-axial vibration composite testing platform, has a work top that is used for the bearing test article, this work top passes the decoupling device that shakes through Z axis and connects the Z axis vibration generator on the Z-direction of bottom vertical, on the X-direction of sidepiece level, pass the decoupling device that shakes through X-axis and connect the X axis vibration generator, on the Y direction of sidepiece level, pass the decoupling device that shakes through Y-axis and connect the Y axis vibration generator.
It is all identical with the structure that Y-axis passes the decoupling device that shakes that described Z axis passes the decoupling device that shakes, X-axis passes the decoupling device that shakes, and for the plane static pressure type passes the decoupling device that shakes, this plane static pressure type passes the decoupling device that shakes and is comprised of sliding shoe and sliding seat two parts
Described sliding shoe is provided with slide block and linking arm, the outside surface of slide block is provided with the first slip plane and the second slip plane, the first slip plane and the second slip plane are parallel to each other, and on slide block back-to-back layout, one end of linking arm is fixedly connected with slide block, and the other end of linking arm is as shake the first link of decoupling device of biography.
Described sliding seat is provided with the casing that can hold described slide block, direction and the position of corresponding described the first slip plane are provided with the 3rd slip plane on the cabinet wall, direction and the position of corresponding described the second slip plane are provided with the 4th slip plane, and the direction of corresponding described linking arm and position are provided with window on the casing wall; Under confined state, described slide block is arranged in cabinets cavity, and the other end of linking arm stretches out the set window from the casing wall, the first slip plane on the slide block and the 3rd slip plane on the cabinet wall are slidingly matched, has the first gap on this face that is slidingly matched, the second slip plane on the slide block and the 4th slip plane on the cabinet wall are slidingly matched, and have the second gap on this face that is slidingly matched; Described sliding seat is provided with the second link that passes the decoupling device that shakes.
In described sliding shoe and the sliding seat, one is provided with oil hole and oiling passage arbitrarily, oil hole is located at the surface of one, the oiling passage is located in the body of one, one end of oiling passage is communicated with oil hole, the other end extends to described the first gap and the second gap, forms the plane static pressure type with this between sliding shoe and sliding seat and passes the decoupling-structure that shakes.
Related content in the above-mentioned three-axial vibration composite testing platform technical scheme is explained as follows:
1. in the technique scheme, described X-axis, Y-axis and Z axis refer to X-axis, Y-axis and the Z-direction in the three-dimensional coordinate, illustrate referring to the three-dimensional coordinate among Fig. 1.
2. in the technique scheme, described Z axis passes the decoupling device that shakes, X-axis and passes shake decoupling device and Y-axis and pass the decoupling device that shakes and refer to biography set on X-axis, Y-axis and the Z-direction decoupling device that shakes.
3. in the technique scheme, X axis vibration generator, Y axis vibration generator and Z axis vibration generator can adopt electric vibration table, mechanical vibration generator system, hydraulic vibration gen or mechanical vibration mechanism, and wherein mechanical vibration mechanism refers to produce the mechanism of mechanical vibration.
4. in the technique scheme, shake decoupling device and vibration machine of each the axial biography that is connected with working face can be realized by shake decoupling device and vibration machine of a biography, also can be realized side by side by shake decoupling device and two vibration machines of two biographies, even can be realized side by side to upload shake decoupling device and three or three above vibration machines by three or three.Concrete selection can be determined according to actual needs.
5. in the technique scheme, connect the center of gravity that passes the decoupling device aftertable face that shakes for balance, can be fixedly installed equilibrate counterweight in sidepiece or the bottom of work top, equilibrate counterweight is the rigid mass body.Quality, quantity and installation site as for equilibrate counterweight can determine according to concrete needs, purpose be for the geometric center of holding table face consistent in Z-direction at least with actual center of gravity.
6. in the technique scheme, passing the decoupling device that shakes can be fixedly connected with the first joint face that is positioned on the sliding shoe with work top, and the second joint face that is positioned on the sliding seat is fixedly connected with vibration machine.Also can conversely the first joint face be fixedly connected with vibration machine, and the second joint face is fixedly connected with work top.When biography is shaken the decoupling device connection, can directly the first joint face or the second joint face be connected with work top or vibration machine, also can connect by an exchanging structure.
7. the static pressure type all changes that pass in the decoupling device technical scheme of shaking in plane of the present invention all are applicable to three-axial vibration composite testing platform technical scheme of the present invention.
The design concept that plane of the present invention static pressure type passes the decoupling device that shakes is: in three-axial vibration composite testing equipment, the biography decoupling device that shakes is the critical component that transmits each axial vibration and thrust, and its performance directly affects the transmission effect of each axial vibration frequency and thrust.The present invention is in order to overcome the existing deficiency that passes the decoupling device that shakes, the first gap and the second gap that utilize the static pressure principle between sliding shoe and sliding seat, to design to be parallel to each other, in the first gap and the second gap, inject hydraulic oil by oil hole and oiling passage during work, in the first gap and the second gap, formed a pair of static pressure oil film that is parallel to each other, because the static pressure oil film has good rigidity under condition of high voltage, nor hinder the slip between sliding shoe and the sliding seat.When coaxial vibration machine sends dither and thrust, come transmitting vibrations frequency and thrust by the direction of vertical static pressure oil film, when different shaft vibration generator sends dither and thrust, realize decoupling zero by the slip between sliding shoe and the sliding seat, thereby realized to greatest extent the target that harmless transmission and effective decoupling zero are made up.
The design concept of three-axial vibration composite testing platform of the present invention is: three-axial vibration composite testing platform of the present invention is exactly that the principle of utilizing plane of the present invention static pressure type to pass the decoupling device that shakes solves coaxial transmitting vibrations frequency and thrust, contradiction between the different decoupler shaft, thus realized to greatest extent the target that harmless transmission and effective decoupling zero are made up.Three-axial vibration composite testing platform of the present invention can have following three kinds of operating positions:
The first, single shaft is to vibration test
When carrying out the Z-axis direction vibration test, as long as starting Z axis vibration generator sends vibration frequency and the thrust of Z-axis direction, pass the decoupling device that shakes through Z axis and pass to work top, and X-axis passes shake decoupling device and Y-axis and passes the decoupling device that shakes and provide decoupling zero to cooperate, and has realized the vibration test of single Z axis.When carrying out X axis or Y-axis when vibration, also if the starting corresponding axis to vibration machine, the course of work is to above-mentioned similar.
The second, two axial combined vibration tests
From the description of above-mentioned the first situation, can find out, when needs carry out two axial combined vibration tests, start corresponding two vibration machines on axially, the vibration of sending and thrust can through corresponding axis to the biography decoupling device that shakes be passed to work top and produce the superposition effect, decoupling device is in the decoupling zero state all the time and the biography of the 3rd axle is shaken, thereby realizes two axial combined vibration tests.
The third, three axial combined vibration tests
Start three axial vibration machines, the vibration that three vibration machines send and thrust are passed to work top and produce the superposition effect through self axial biography decoupling device that shakes respectively, when the vibration of self transfers and thrust, other axially provides decoupling zero to cooperate, thereby realizes three axial combined vibration tests.
Because technique scheme is used, the present invention compared with prior art has following advantages and effect:
1. because passing the decoupling device that shakes, the present invention utilized the rigidity oil film between sliding shoe and the sliding seat to come transmitting vibrations and thrust, the biography decoupling device longitudinal stiffness that shakes is good, antidumping moment is large, load-bearing capacity is strong, frequency of operation is wide, can realize to greatest extent harmless the transmission, be particularly suitable for the dither transmission.
2. because the present invention passes between sliding shoe and the sliding seat in the decoupling device that shakes contacts by the static pressure oil film, the machinery-free friction, long service life, reliability is high, and decoupling ability is strong.
3. owing to having adopted the present invention to pass to shake decoupling device and equilibrate counterweight, so that the work top moving-mass is light, X, Y, three axial frequency response of Z are consistent.
4. it is rational in infrastructure that the present invention passes the decoupling device that shakes, and precision is high, and debugging is simple, and maintaining is convenient.
Description of drawings
Accompanying drawing 1 is three-axial vibration composite testing platform stereographic map of the present invention;
Accompanying drawing 2 axially passes the annexation schematic diagram of shake decoupling device and equilibrate counterweight for embodiment of the invention work top and three;
Accompanying drawing 3 is the front view after embodiment of the invention work top, three axially passes shake decoupling device and equilibrate counterweight assembling;
Accompanying drawing 4 is the vertical view after embodiment of the invention work top, three axially passes shake decoupling device and equilibrate counterweight assembling;
Accompanying drawing 5 is the cut-open view after embodiment of the invention work top, three axially passes shake decoupling device and equilibrate counterweight assembling;
Accompanying drawing 6 passes the three-dimensional exploded view of the decoupling device that shakes for embodiment of the invention plane static pressure type;
Accompanying drawing 7 passes the first three-dimensional cutaway view of the decoupling device that shakes for embodiment of the invention plane static pressure type;
Accompanying drawing 8 passes the second three-dimensional cutaway view of the decoupling device that shakes for embodiment of the invention plane static pressure type;
Accompanying drawing 9 is the first stereographic map of embodiment of the invention sliding shoe;
Accompanying drawing 10 is the second stereographic map of embodiment of the invention sliding shoe;
Accompanying drawing 11 is the three-dimensional cutaway view of embodiment of the invention sliding shoe;
Accompanying drawing 12 is for passing the first layout change figure of shake decoupling device and vibration machine in the three-axial vibration composite testing platform of the present invention;
Accompanying drawing 13 is for passing the second layout change figure of shake decoupling device and vibration machine in the three-axial vibration composite testing platform of the present invention.
In the above accompanying drawing: 1. work top; 2. Z axis passes the decoupling device that shakes; 3. X-axis passes the decoupling device that shakes; 4. Y-axis passes the decoupling device that shakes; 5. Z axis vibration generator; 6. X axis vibration generator; 7. Y axis vibration generator; 8. sliding shoe; 9. sliding seat; 10. slide block; 11. linking arm; 12. the first slip plane; 13. the second slip plane; 14. the first link; 15. the 3rd slip plane; 16. the 4th slip plane; 17. window; 18. the second link; 19. oil hole; 20. oiling passage; 21. spill port; 22. drainback passage; 23. cover plate; 24. base plate; 25. long side plate; 26. short side plate; 27. sealing and dustproof cover; 28. oil pocket; 29. flow controller; 30. equilibrate counterweight.
Embodiment
The invention will be further described below in conjunction with drawings and Examples:
Embodiment 1: a kind of three-axial vibration composite testing platform
Shown in Fig. 1-5, this three-axial vibration composite testing platform has a work top 1 that is used for the bearing test article, this work top 1 passes the decoupling device 2 that shakes through a Z axis and connects a Z axis vibration generator 5 on the Z-direction of bottom vertical, on the X-direction of sidepiece level, pass the decoupling device 3 that shakes through an X-axis and connect an X axis vibration generator 6, on the Y direction of sidepiece level, pass the decoupling device 4 that shakes through a Y-axis and connect a Y axis vibration generator 7.
Described X axis vibration generator 6, Y axis vibration generator 7 and Z axis vibration generator 5 can adopt electric vibration table, mechanical vibration generator system, hydraulic vibration gen or mechanical vibration mechanism, and wherein mechanical vibration mechanism refers to produce the mechanism of mechanical vibration.
It is all identical with the structure that Y-axis passes the decoupling device 4 that shakes that described Z axis passes the decoupling device 2 that shakes, X-axis passes the decoupling device 3 that shakes, and be the plane static pressure type biography decoupling device that shakes.
Shown in Fig. 6-11, described plane static pressure type passes the decoupling device that shakes and is comprised of sliding shoe 8 and sliding seat 9 two parts.
Described sliding shoe 8 is provided with slide block 10 and linking arm 11, slide block 10 is a cube structure, the outside surface of slide block 10 is provided with the first slip plane 12 and the second slip plane 13, the first slip planes 12 and the second slip plane 13 and is parallel to each other, and on slide block 10 back-to-back layout.Linking arm 11 is block structure, and one end and slide block 10 are connected to one, and consists of inverse-T-shaped structure.The other end of linking arm 11 is provided with the first joint face as shake the first link 14, the first links 14 of decoupling device of biography, and the first joint face is parallel with the first slip plane 12 or the second slip plane 13.The crosspiece of described inverse-T-shaped structure is slide block 10, and vertical section is linking arm 11.Described the first slip plane 12 is positioned at the crosspiece shoulder of the vertical section of inverse-T-shaped structure both sides, and is comprised of left shoulder and right shoulder.Described the second slip plane 13 is positioned at the crosspiece bottom surface of inverse-T-shaped structure.
Described sliding seat 9 is provided with the casing that can hold described slide block 10, direction and the position of corresponding described the first slip plane 12 are provided with the 3rd slip plane 15 on the cabinet wall, direction and the position of corresponding described the second slip plane 13 are provided with the 4th slip plane 16, and the direction of corresponding described linking arm 11 and position are provided with window 17 on the casing wall.Under confined state, described slide block 10 is arranged in cabinets cavity, and the other end of linking arm 11 stretches out the set window 17 from the casing wall, the first slip plane 12 on the slide block 10 is slidingly matched with the 3rd slip plane 15 on the cabinet wall, has the first gap on this face that is slidingly matched, the second slip plane 13 on the slide block 10 is slidingly matched with the 4th slip plane 16 on the cabinet wall, has the second gap on this face that is slidingly matched.Described sliding seat 9 is provided with the second link 18, the second links 18 that pass the decoupling device that shakes and is provided with the second joint face, and the position of the relative casing of the second joint face is fixed.In the present embodiment, the second joint face is exactly the bottom surface of casing, and the second joint face is parallel with described the first joint face under confined state, and towards the opposite.
Described casing is surrounded by cover plate 23, side plate and base plate 24, and described window 17 is located at the central authorities of cover plate 23.Cover plate 23 and base plate 24 are individual member, and side plate is comprised of two long side plates 25 and two short side plates 26, and casing fixedly is put together by a cover plate 23, two long side plates 25, two short side plates 26 and a base plate 24.Described the 3rd slip plane 15 is positioned on the bottom surface of cover plate 23 (bottom surface, window 17 both sides of cover plate 23).Described the 4th slip plane 16 is positioned at the end face of base plate 24.Two long side plates 25 and two short side plates 26 surround a rectangular area, and slide block 10 is arranged in this zone, leave the space between slide block 10 and long side long 25 and the short side plate 26, slide in casing for slide block 10.
Described sliding shoe 8 and sliding seat 9 are among both, sliding shoe 8 is provided with oil hole 19 and oiling passage 20, oil hole 19 is located at the surface of sliding shoe 8, oiling passage 20 is located in the body of sliding shoe 8, one end of oiling passage 20 is communicated with oil hole 19, the other end extends to described the first gap and the second gap, thereby forms the fuel feeding path of hydraulic oil.Sliding seat 9 is provided with spill port 21 and drainback passage 22, spill port 21 is located at the surface of sliding seat 9, drainback passage 22 is located in the body of sliding seat 9, one end of drainback passage 22 is communicated with spill port 21, the other end of drainback passage 22 is communicated with cabinets cavity, cabinets cavity is communicated with described the first gap and the second gap, thereby forms way to cycle oil, forms the plane static pressure type with this between sliding shoe 8 and sliding seat 9 and passes the decoupling-structure that shakes.Passing the height that shakes between decoupling-structure cover plate 23 and the base plate 24 at this plane static pressure type is determined by side plate, height between two slip planes on this aspect ratio sliding shoe 10 is slightly high, and the difference in height that forms thus is the gross thickness of sliding shoe 10 upper and lower surface rigidity oil lamellas.
For the hydraulic oil that the prevents box house window 17 from cover plate 23 flows out, and prevent that dust and other impurities from entering box house, for the window 17 that is located at cover plate 23 a soft sealing and dustproof cover 27 is set, the top of sealing and dustproof cover 27 is provided with through hole, through hole is enclosed within on the described linking arm 11 and linking arm 11 is fixing relatively, and sealing and dustproof cover 27 peripheries are fixed on the cover plate 23.
In order better to utilize the fluid Throttle Principle to improve the oil pressure in the first gap and the second gap and to keep the stable of oil pressure, connectivity part in oiling passage 20 and described the first gap and the second gap is equipped with oil pocket 28, be provided with flow controller 29 near in the oiling passage 20 of oil pocket 28, flow controller 29 is provided with the aperture for throttling.
For connect passing behind the decoupling device that shakes center of gravity to work top 1, balance is offset that (work top 1 is cube, the center of gravity of work top 1 is exactly cubical geometric center), pass the decoupling device 3 that shakes in the corresponding X-axis of the first sidepiece of work top 1 and be fixedly installed an equilibrate counterweight 30.Pass the decoupling device 4 that shakes in the corresponding Y-axis of the second sidepiece of work top 1 and be fixedly installed an equilibrate counterweight 30.Equilibrate counterweight 30 is the rigid mass body, is used for balance and connects the center of gravity that the plane static pressure type passes the decoupling device aftertable face 1 that shakes.
Plane static pressure type in the present embodiment passes when shaking decoupling device work, by the oil hole hydraulic oil, carried by the oiling passage, enter oil pocket through the aperture on the flow controller, finally in the first gap and the second gap, formed a pair of static pressure oil film that is parallel to each other, because the static pressure oil film has good rigidity under condition of high voltage, nor hinder the slip between sliding shoe and the sliding seat.When coaxial vibration machine sends dither and thrust, come transmitting vibrations frequency and thrust by the direction of vertical static pressure oil film, when different shaft vibration generator sends dither and thrust, realize decoupling zero by the slip between sliding shoe and the sliding seat.Enter cabinets cavity from the hydraulic oil of the first gap and the outflow of the second clearance margin, finally reclaim through drainback passage and spill port.
Above-described embodiment only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with technique can understand content of the present invention and according to this enforcement, can not limit protection scope of the present invention with this.Structural change in relevant above-described embodiment is described below:
1. above-described embodiment has been described a kind of embodiment of equilibrate counterweight 30, but for the present invention, equilibrate counterweight 30 also can be fixed on the bottom (near the regional location of the first sidepiece and the second sidepiece intersection) of work top 1, and at the same sidepiece of work top 1 a plurality of equilibrate counterweights can also be set.In a word, can determine according to concrete needs about quality, quantity and the installation site of equilibrate counterweight, purpose be for the geometric center of holding table face consistent in Z-direction at least with actual center of gravity.In fact do not have equilibrate counterweight also can realize the present invention, just there is eccentric problem in work top when work.
2. above-described embodiment has been described the fuel feeding path and has been located on the sliding shoe 8, and way to cycle oil is located at sliding seat 9.Both can exchange in fact, be about to the fuel feeding path and be located at sliding seat 9, and way to cycle oil is located at sliding shoe 8.
3. above-described embodiment has been described a kind of implementation (mainly being to be convenient to processing) of casing, and casing can also have following multiple variation with the exception of this:
(1) cover plate 23 and base plate 24 are individual member, and side plate is made of a rectangle frame, and casing fixedly is put together by side plate and a base plate 24 of a cover plate 23, a rectangle frame.
(2) cover plate 23 is individual member, and side plate and base plate 24 are integral type the first open top container, and wherein, side plate is a rectangle frame, and casing fixedly is put together by cover plate 23 and integral type the first open top container.
(3) base plate 24 is individual member, and side plate and cover plate 23 are integral type the second open top container, and wherein, side plate is a rectangle frame, and casing is put together by base plate 24 and integral type the second open top container.
4. above-described embodiment has been described work top 1 and respectively has been provided with a biography shake decoupling device and a vibration machine in X-axis, Y-axis and Z-direction.But consider from the structural change angle, each axially also can realize by shake decoupling device and two vibration machines of two biographies side by side, even can be realized side by side to upload shake decoupling device and three or three above vibration machines by three or three.Concrete selection can determine according to actual needs, such as in layout shown in Figure 12, when the Y direction size of work top 1 is larger, can adopt two X-axis to pass to shake decoupling device and two X axis vibration generators to realize side by side.Such as in layout shown in Figure 13, X-axis and Y-axis are shake decoupling device and two coaxial and face-to-face layouts of vibration machine of two biographies and realize.
5. in the above-described embodiments, passing the decoupling device that shakes can be fixedly connected with the first link that is positioned on the sliding shoe with work top, and the second link that is positioned on the sliding seat is fixedly connected with vibration machine.Also can conversely the first link be fixedly connected with vibration machine, and the second link is fixedly connected with work top.When biography is shaken the decoupling device connection, can directly the first link or the second link be connected with work top or vibration machine, also can connect by an exchanging structure.
6. in the above-described embodiments, the second link 18 is exactly the bottom surface of casing, but also can extend in the bottom surface of casing in implementing a contiguous block is set again, and an end of contiguous block is as the second link 18.
7. can find out from the accompanying drawing of above-described embodiment, passing the decoupling device that shakes is to be connected with vibration machine with work top respectively by bolt to be connected, but also can adopt the mode of welding to realize in the practice.
Embodiment 2: a kind of plane static pressure type passes the decoupling device that shakes
This plane static pressure type passes the decoupling device that shakes can be applied to two axial vibration composite testing platform, perhaps three-axial vibration composite testing platforms.It is identical that the plane static pressure type of describing among its structure and the embodiment 1 passes the decoupling device that shakes, and no longer is repeated in this description here, referring to the related content of embodiment 1.
All equivalences that Spirit Essence is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (10)
1. a plane static pressure type passes the decoupling device that shakes, and it is characterized in that: be comprised of sliding shoe (8) and sliding seat (9) two parts;
Described sliding shoe (8) is provided with slide block (10) and linking arm (11), the outside surface of slide block (10) is provided with the first slip plane (12) and the second slip plane (13), the first slip plane (12) is parallel to each other with the second slip plane (13), and in the upper back-to-back layout of slide block (10), one end of linking arm (11) is fixedly connected with slide block (10), and the other end of linking arm (11) is as shake first link (14) of decoupling device of biography;
Described sliding seat (9) is provided with the casing that can hold described slide block (10), direction and the position of corresponding described the first slip plane (12) are provided with the 3rd slip plane (15) on the cabinet wall, direction and the position of corresponding described the second slip plane (13) are provided with the 4th slip plane (16), and the direction of corresponding described linking arm (11) and position are provided with window (17) on the casing wall; Under confined state, described slide block (10) is arranged in cabinets cavity, and the other end of linking arm (11) stretches out the set window (17) from the casing wall, the 3rd slip plane (15) on the first slip plane (12) on the slide block (10) and the cabinet wall is slidingly matched, has the first gap on this face that is slidingly matched, the 4th slip plane (16) on the second slip plane (13) on the slide block (10) and the cabinet wall is slidingly matched, and has the second gap on this face that is slidingly matched; Described sliding seat (9) is provided with the second link (18) that passes the decoupling device that shakes;
Described sliding shoe (8) and sliding seat (9) are among both, one is provided with oil hole (19) and oiling passage (20) arbitrarily, oil hole (19) is located at the surface of one, oiling passage (20) is located in the body of one, one end of oiling passage (20) is communicated with oil hole (19), the other end extends to described the first gap and the second gap, forms the plane static pressure type with this between sliding shoe (8) and sliding seat (9) and passes the decoupling-structure that shakes.
2. plane according to claim 1 static pressure type passes the decoupling device that shakes, it is characterized in that: described sliding shoe (8) and sliding seat (9) are among both, the two be provided with spill port (21) and drainback passage (22), spill port (21) is located at the two surface, drainback passage (22) is located in the two body, one end of drainback passage (22) is communicated with spill port (21), the other end of drainback passage (22) is communicated with cabinets cavity, cabinets cavity is communicated with described the first gap and the second gap, forms way to cycle oil with this.
3. plane according to claim 1 static pressure type passes the decoupling device that shakes, it is characterized in that: described casing is surrounded by cover plate (23), side plate and base plate (24), described window (17) is located at the central authorities of cover plate (23), and the splicing construction of casing adopts one of following scheme:
The first scheme is: cover plate (23) and base plate (24) are individual member, side plate is comprised of two long side plates (25) and two short side plates (26), and casing fixedly is put together by a cover plate (23), two long side plates (25), two short side plates (26) and a base plate (24);
Alternative plan is: cover plate (23) and base plate (24) are individual member, and side plate is made of a rectangle frame, and casing fixedly is put together by side plate and a base plate (24) of a cover plate (23), a rectangle frame;
Third party's case is: cover plate (23) is individual member, and side plate and base plate (24) are integral type the first open top container, and wherein, side plate is a rectangle frame, and casing fixedly is put together by cover plate (23) and integral type the first open top container;
Cubic case is: base plate (24) is individual member, and side plate and cover plate (23) are integral type the second open top container, and wherein, side plate is a rectangle frame, and casing is put together by base plate (24) and integral type the second open top container.
4. plane according to claim 3 static pressure type passes the decoupling device that shakes, it is characterized in that: for the window that is located at cover plate (23) (17) a soft sealing and dustproof cover (27) is set, the top of sealing and dustproof cover (27) is provided with through hole, through hole is enclosed within the upper and relative linking arm (11) of described linking arm (11) and fixes, and sealing and dustproof cover (27) periphery is fixed on the cover plate (23).
5. plane according to claim 1 static pressure type passes the decoupling device that shakes, it is characterized in that: described oiling passage (20) is equipped with oil pocket (28) with the connectivity part in described the first gap and the second gap, is provided with flow controller (29) near in the oiling passage (20) of oil pocket (28).
6. three-axial vibration composite testing platform, has a work top (1) that is used for the bearing test article, this work top (1) passes the decoupling device (2) that shakes through Z axis and connects Z axis vibration generator (5) on the Z-direction of bottom vertical, on the X-direction of sidepiece level, pass the decoupling device (3) that shakes through X-axis and connect X axis vibration generator (6), on the Y direction of sidepiece level, pass the decoupling device (4) that shakes through Y-axis and connect Y axis vibration generator (7), it is characterized in that:
It is all identical with the structure that Y-axis passes the decoupling device (4) that shakes that described Z axis passes the decoupling device (2) that shakes, X-axis passes the decoupling device (3) that shakes, and for the plane static pressure type passes the decoupling device that shakes, this plane static pressure type passes the decoupling device that shakes and is comprised of sliding shoe (8) and sliding seat (9) two parts;
Described sliding shoe (8) is provided with slide block (10) and linking arm (11), the outside surface of slide block (10) is provided with the first slip plane (12) and the second slip plane (13), the first slip plane (12) is parallel to each other with the second slip plane (13), and in the upper back-to-back layout of slide block (10), one end of linking arm (11) is fixedly connected with slide block (10), and the other end of linking arm (11) is as shake first link (14) of decoupling device of biography;
Described sliding seat (9) is provided with the casing that can hold described slide block (10), direction and the position of corresponding described the first slip plane (12) are provided with the 3rd slip plane (15) on the cabinet wall, direction and the position of corresponding described the second slip plane (13) are provided with the 4th slip plane (16), and the direction of corresponding described linking arm (11) and position are provided with window (17) on the casing wall; Under confined state, described slide block (10) is arranged in cabinets cavity, and the other end of linking arm (11) stretches out the set window (17) from the casing wall, the 3rd slip plane (15) on the first slip plane (12) on the slide block (10) and the cabinet wall is slidingly matched, has the first gap on this face that is slidingly matched, the 4th slip plane (16) on the second slip plane (13) on the slide block (10) and the cabinet wall is slidingly matched, and has the second gap on this face that is slidingly matched; Described sliding seat (9) is provided with the second link (18) that passes the decoupling device that shakes;
Described sliding shoe (8) and sliding seat (9) are among both, one is provided with oil hole (19) and oiling passage (20) arbitrarily, oil hole (19) is located at the surface of one, oiling passage (20) is located in the body of one, one end of oiling passage (20) is communicated with oil hole (19), the other end extends to described the first gap and the second gap, forms the plane static pressure type with this between sliding shoe (8) and sliding seat (9) and passes the decoupling-structure that shakes.
7. three-axial vibration composite testing platform according to claim 6, it is characterized in that: described sliding shoe (8) and sliding seat (9) are among both, the two be provided with spill port (21) and drainback passage (22), spill port (21) is located at the two surface, drainback passage (22) is located in the two body, one end of drainback passage (22) is communicated with spill port (21), the other end of drainback passage (22) is communicated with cabinets cavity, cabinets cavity is communicated with described the first gap and the second gap, forms way to cycle oil with this.
8. three-axial vibration composite testing platform according to claim 6, it is characterized in that: described casing is surrounded by cover plate (23), side plate and base plate (24), described window (17) is located at the central authorities of cover plate (23), and the splicing construction of casing adopts one of following scheme:
The first scheme is: cover plate (23) and base plate (24) are individual member, side plate is comprised of two long side plates (25) and two short side plates (26), and casing fixedly is put together by a cover plate (23), two long side plates (25), two short side plates (26) and a base plate (24);
Alternative plan is: cover plate (23) and base plate (24) are individual member, and side plate is made of a rectangle frame, and casing fixedly is put together by side plate and a base plate (24) of a cover plate (23), a rectangle frame;
Third party's case is: cover plate (23) is individual member, and side plate and base plate (24) are integral type the first open top container, and wherein, side plate is a rectangle frame, and casing fixedly is put together by cover plate (23) and integral type the first open top container;
Cubic case is: base plate (24) is individual member, and side plate and cover plate (23) are integral type the second open top container, and wherein, side plate is a rectangle frame, and casing is put together by base plate (24) and integral type the second open top container.
9. three-axial vibration composite testing platform according to claim 6, it is characterized in that: described oiling passage (20) is equipped with oil pocket (28) with the connectivity part in described the first gap and the second gap, is provided with flow controller (29) near in the oiling passage (20) of oil pocket (28).
10. three-axial vibration composite testing platform according to claim 6, it is characterized in that: the sidepiece of described work top (1) or bottom are fixedly installed equilibrate counterweight (30), equilibrate counterweight (30) is the rigid mass body, is used for balance and connects the center of gravity that the plane static pressure type passes the decoupling device aftertable face (1) that shakes.
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| CN201210343875.2A CN102865987B (en) | 2012-09-17 | 2012-09-17 | Plane static pressure type vibration transferring and decoupling device and tri-axial vibration composite experiment table |
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| CN109341999A (en) * | 2018-11-21 | 2019-02-15 | 苏州东菱振动试验仪器有限公司 | A kind of decoupling mechanism and experimental rig for dual-shaft synchronous oscillation test |
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