CN105736591A - No-clearance force transmission coupling device capable of generating shearing deformation in hyper-gravity field - Google Patents
No-clearance force transmission coupling device capable of generating shearing deformation in hyper-gravity field Download PDFInfo
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- CN105736591A CN105736591A CN201610298560.9A CN201610298560A CN105736591A CN 105736591 A CN105736591 A CN 105736591A CN 201610298560 A CN201610298560 A CN 201610298560A CN 105736591 A CN105736591 A CN 105736591A
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- Prior art keywords
- adpting flange
- rubber layer
- gravity field
- transmission coupling
- force transmission
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D7/00—Slip couplings, e.g. slipping on overload, for absorbing shock
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a no-clearance force transmission coupling device capable of generating shearing deformation in a hyper-gravity field. The no-clearance force transmission coupling device comprises a first connection flange, a second connection flange, steel plates and rubber layers, wherein the first connection flange is used for being connected with a piston rod of a hydraulic cylinder; the second connection flange is used for being connected with a vibration tabletop; one or more of the steel plates and one or more of the rubber layers are separately and alternately arranged between the first connection flange and the second connection flange. The no-clearance force transmission coupling device is characterized by further comprising balls; the plurality of balls are arranged in the rubber layers respectively; two relative tops of all the balls in a force transmission direction are in contact with the steel plates, the first connection flange or the second connection flange respectively. By additionally arranging the balls capable of realizing rigid force transmission and moving along with deformation on the basis of a traditional shearing rubber coupling structure, no-clearance and distortion-free force transmission capable of generating the shearing deformation in the hyper-gravity field can be realized.
Description
Technical field
The present invention relates to a kind of power transmission coupling arrangement, particularly relate to the gapless power transmission coupling arrangement that can produce detrusion in a kind of super gravity field.
Background technology
Based on the super gravity field environment that centrifuge provides, shaking table model can produce the weight stress identical with prototype, actual response prototype dynamic response under field conditions (factors), reproduces the earth structure deformation and failure mechanism under geological process.Therefore, centrifuge vibration table becomes the important analogue test platform solving the field related scientific issues such as Geotechnical Engineering, environmental project and hydraulic engineering.
Currently, the commonly used hydraulically powered mode of the vibration table in super gravity field.Hydraulic cylinder, as power executive component, by the coupling arrangement between piston rod and vibration table, completes the transmission of power, it is achieved the vibration of vibration table and load.Therefore, it is achieved power is transmitted by the gapless of hydraulic cylinder piston rod to vibration table, it is ensured that the undistorted of vibrational waveform becomes the key issue reproducing earthquake damage.At present, the connecting mode between hydraulic cylinder piston rod and vibration table mainly has screw thread, pin and shearing rubber etc..
Thread connection is coordinating by outer (interior) screw thread on piston rod and interior (outward) screw thread on vibration table, is connected with vibration table by piston rod, it is achieved the transmission of power.Similar with screw thread, pin connection is by one or more pin, piston rod and vibration table is fixed together, it is achieved the transmission of power.Shear rubber to be generally superimposed formed by one layer of steel plate, one layer of high-strength rubber, when hydraulic cylinder thrust output is less, it is possible to achieve the undistorted transmission of power；Simultaneously as the flexible effect of rubber layer, shear rubber and can produce certain detrusion.
, there is following defect in the connecting mode between above-mentioned traditional hydraulic cylinder piston rod and vibration table:
1, thread connection, pin couple can realize power along piston rod to undistorted transmission, but constrain all degree of freedom being likely to produce motion mutually between hydraulic cylinder piston rod and vibration table, both are made to become as a whole, there is no to produce the flexible link of detrusion tangential (being perpendicular to axis direction) between the two, it is impossible to produce flexible shear deformation；
2, shear rubber be connected in hydraulic cylinder piston rod power output less time no problem, but when hydraulic cylinder piston rod power output is bigger, owing to shearing in rubber containing flexible material rubber, its load performance is weak compared with steel material, so moderate finite deformation can be there is in rubber, absorb a part of power, cause the difference between piston rod power output and vibration table reception, produce power transmission distortion.
Summary of the invention
The purpose of the present invention is that provides the gapless power transmission coupling arrangement that can produce detrusion in a kind of super gravity field to solve the problems referred to above.
The present invention is achieved through the following technical solutions above-mentioned purpose:
A kind of super gravity field can produce the gapless power transmission coupling arrangement of detrusion, including the first adpting flange, second adpting flange, steel plate and rubber layer, described first adpting flange is for being connected with hydraulic cylinder piston rod, described second adpting flange is for being connected with vibration table, one or more described steel plates and one or more described rubber layer is alternate is located between described first adpting flange and described second adpting flange, described gapless power transmission coupling arrangement also includes ball, multiple described balls are respectively placed in described rubber layer, each described ball power transmitting two opposite crests respectively with described steel plate, described first adpting flange or described second adpting flange contact.
As preferably, being evenly distributed with multiple described ball in each described rubber layer.
Specifically, being provided with spherical ball hole in described rubber layer, described ball hole is at the equal opening in the two ends of power transmitting, and described ball is placed in described ball hole.
Specifically, bonding connection between described rubber layer and described steel plate.
The beneficial effects of the present invention is:
The present invention by traditional shear rubber draw bail basis increases can realize rigidity power transmission and can with the ball of displacement, it is possible to achieve super gravity field can produce the gapless of detrusion, the transmission of undistorted power；Its concrete advantage is as follows:
1, for coupling relative to thread connection, pin, invention introduces flexible link and rubber layer, make coupling arrangement tangentially can produce plastic deformation, it is ensured that piston rod coordinates with cylinder barrel, is conducive to the normal operation of hydraulic cylinder；
2, for shearing rubber, the present invention is mounted with the ball of steel in rubber layer, it is achieved that the intimate contact of steel material in coupling arrangement, it is ensured that the undistorted transmission of piston rod thrust output.
Accompanying drawing explanation
Fig. 1 is one of structural representation of gapless power transmission coupling arrangement that can produce detrusion in super gravity field of the present invention, it is shown that the internal structure of rubber layer；
Fig. 2 is the two of the structural representation of the gapless power transmission coupling arrangement that can produce detrusion in super gravity field of the present invention, it is shown that the internal structure of rubber layer；
Fig. 3 is the three of the structural representation of the gapless power transmission coupling arrangement that can produce detrusion in super gravity field of the present invention, it is shown that the internal structure of rubber layer；
Structural representation that Fig. 4 is the gapless power transmission coupling arrangement that can produce detrusion in super gravity field of the present invention when producing detrusion, it is shown that the internal structure of rubber layer.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described:
nullAs shown in Figure 1，Super gravity field of the present invention can produce the gapless power transmission coupling arrangement of detrusion，Including the first adpting flange 1、Second adpting flange 5、Steel plate 4、Rubber layer 2 and ball 3，First adpting flange 1 is for being connected with hydraulic cylinder piston rod (not shown)，Second adpting flange 5 is for being connected with vibration table (not shown)，One or more steel plates 4 and one or more rubber layer 2 is alternate is located between the first adpting flange 1 and the second adpting flange 5，Bonding connection between rubber layer 2 and steel plate 4，Spherical ball hole (unmarked in figure) it is provided with in rubber layer 2，(its aperture area is less at the equal opening in the two ends of power transmitting for described ball hole，Opening diameter of a circle is generally 0.5-5mm)，Multiple balls 3 are respectively placed in the ball hole in rubber layer 2，Multiple ball 3 it is evenly distributed with in each rubber layer 2，Each ball 3 power transmitting two opposite crests respectively with steel plate 4、First adpting flange 1 or the second adpting flange 5 contact.
According to specifically applying needs, the concrete structure of this gapless power transmission coupling arrangement can be different, illustrate with three embodiments below:
Embodiment 1:
As it is shown in figure 1, this gapless power transmission coupling arrangement includes three rubber layers 2 and two steel plates 4 altogether, the ball 3 in each rubber layer 2 is evenly distributed with four layers in the direction vertical with power transmitting, and other structure is identical with above-mentioned dependency structure.
Embodiment 2:
As in figure 2 it is shown, this gapless power transmission coupling arrangement includes two rubber layers 2 and a steel plate 4 altogether, other structure is identical with embodiment 1 dependency structure.
Embodiment 3:
As it is shown on figure 3, this gapless power transmission coupling arrangement includes four rubber layers 2 and three steel plates 4 altogether, other structure is identical with embodiment 1 dependency structure.
The quantity of rubber layer 2 and steel plate 4 according to the distance between hydraulic cylinder piston rod and vibration table, the thickness of rubber layer 2, steel plate 4 thickness determine.
In conjunction with Fig. 1-Fig. 4, the operation principle of the gapless power transmission coupling arrangement that can produce detrusion in super gravity field of the present invention is as follows:
1, axial gapless power transmission:
As shown in Figure 1, the thrust of hydraulic cylinder piston rod output bang path vertically is: the first adpting flange 1,3, first steel plate 4 of ball of first row, 3, second steel plate 4 of ball of secondary series, tertial ball the 3, second adpting flange 5, intimate contact between first adpting flange 1, ball 3, steel plate the 4, second adpting flange 5, ensure that the gapless of piston rod thrust output is transmitted, it is undistorted that the power that namely ensure that is transmitted.
As shown in Figure 2, the thrust bang path vertically of hydraulic cylinder piston rod output is: the first adpting flange 1, the ball 3 of first row, steel plate 4, secondary series ball the 3, second adpting flange 5, intimate contact between first adpting flange 1, ball 3, steel plate the 4, second adpting flange 5, ensure that the gapless of piston rod thrust output is transmitted, it is undistorted that the power that namely ensure that is transmitted.
As shown in Figure 3, the thrust of hydraulic cylinder piston rod output bang path vertically is: ball the 3, second adpting flange 5 that the first adpting flange 1,3, first steel plate 4 of ball of first row, 3, second steel plate 4 of ball of secondary series, tertial ball 3, the 3rd steel plate the 4, the 4th arrange, intimate contact between first adpting flange 1, ball 3, steel plate the 4, second adpting flange 5, ensure that the gapless of piston rod thrust output is transmitted, it is undistorted that the power that namely ensure that is transmitted.
2, tangential flexible shear deformation:
As shown in Figure 4, when vibration table produces tangential deformation as shown by arrows, this deformation can act on this coupling arrangement either directly through the second adpting flange 5.Now, can there is tangential frost-heaves in the rubber layer 2 in this coupling arrangement, and the ball 3 in rubber layer 2 also can be followed the slip of rubber layer 2 and be carried out rolling or sliding.Can there is this slip in each rubber layer 2, rubber layer 2 is more many, and slide effect is more obvious.By this plastic deformation that this coupling arrangement is tangential, it is possible to the additional bending moment effect of hydraulic cylinder piston rod is discharged by the deformation of vibration table, thus the matching relationship not affected between hydraulic cylinder piston rod and cylinder barrel, it is ensured that the normal operation of hydraulic cylinder.
D in Fig. 4 is this coupling arrangement plastic deformation length at shear direction, and rubber layer 2 is more many, and it is more big in the plastic deformation of shear direction；The number of rubber layer 2 can be determined according to vibration table maximum distortion length in super gravity field.
Above-described embodiment is presently preferred embodiments of the present invention; it it is not the restriction to technical solution of the present invention; as long as without the technical scheme that creative work can realize on the basis of above-described embodiment, be regarded as falling within the scope of the rights protection of patent of the present invention.
Claims (4)
1. a super gravity field can produce the gapless power transmission coupling arrangement of detrusion, including the first adpting flange, second adpting flange, steel plate and rubber layer, described first adpting flange is for being connected with hydraulic cylinder piston rod, described second adpting flange is for being connected with vibration table, one or more described steel plates and one or more described rubber layer is alternate is located between described first adpting flange and described second adpting flange, it is characterized in that: described gapless power transmission coupling arrangement also includes ball, multiple described balls are respectively placed in described rubber layer, each described ball power transmitting two opposite crests respectively with described steel plate, described first adpting flange or described second adpting flange contact.
2. super gravity field according to claim 1 can produce the gapless power transmission coupling arrangement of detrusion, it is characterised in that: it is evenly distributed with multiple described ball in each described rubber layer.
3. super gravity field according to claim 1 and 2 can produce the gapless power transmission coupling arrangement of detrusion, it is characterized in that: in described rubber layer, be provided with spherical ball hole, described ball hole is at the equal opening in the two ends of power transmitting, and described ball is placed in described ball hole.
4. super gravity field according to claim 1 and 2 can produce the gapless power transmission coupling arrangement of detrusion, it is characterised in that: bonding connection between described rubber layer and described steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610298560.9A CN105736591B (en) | 2016-05-06 | 2016-05-06 | Shear-deformable gapless power transmission coupling arrangement can be generated in super gravity field |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610298560.9A CN105736591B (en) | 2016-05-06 | 2016-05-06 | Shear-deformable gapless power transmission coupling arrangement can be generated in super gravity field |
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| CN105736591A true CN105736591A (en) | 2016-07-06 |
| CN105736591B CN105736591B (en) | 2018-06-29 |
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| CN201610298560.9A Active CN105736591B (en) | 2016-05-06 | 2016-05-06 | Shear-deformable gapless power transmission coupling arrangement can be generated in super gravity field |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318201A (en) * | 2018-01-11 | 2018-07-24 | 中国工程物理研究院总体工程研究所 | A kind of super gravity field medium-high frequency high-thrust single degree of freedom horizontal vibration platform |
Citations (7)
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|---|---|---|---|---|
| EP0495701A1 (en) * | 1991-01-14 | 1992-07-22 | Neopost Industrie | Ball engagement system |
| JPH09317842A (en) * | 1996-05-31 | 1997-12-12 | Tsubakimoto Emason:Kk | Hollow shaft speed reducer equipped with overload protector |
| CN2687649Y (en) * | 2004-02-02 | 2005-03-23 | 沈光新 | Artificial testing platform of anti-seismic property for mechanical structure |
| CN1900661A (en) * | 2006-07-19 | 2007-01-24 | 中国航空工业第一集团公司北京长城计量测试技术研究所 | No-motor type electric angle vibrative table |
| CN201083615Y (en) * | 2006-09-15 | 2008-07-09 | 江苏科技大学 | Shock absorber test stand for motorcycle |
| CN203808279U (en) * | 2014-05-08 | 2014-09-03 | 武汉大学 | Cylinder-type metal rubber isolation bearing |
| CN205559601U (en) * | 2016-05-06 | 2016-09-07 | 中国工程物理研究院总体工程研究所 | Zero clearance that can produce shear deformation in overweight field of force passes power coupling device |
-
2016
- 2016-05-06 CN CN201610298560.9A patent/CN105736591B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0495701A1 (en) * | 1991-01-14 | 1992-07-22 | Neopost Industrie | Ball engagement system |
| JPH09317842A (en) * | 1996-05-31 | 1997-12-12 | Tsubakimoto Emason:Kk | Hollow shaft speed reducer equipped with overload protector |
| CN2687649Y (en) * | 2004-02-02 | 2005-03-23 | 沈光新 | Artificial testing platform of anti-seismic property for mechanical structure |
| CN1900661A (en) * | 2006-07-19 | 2007-01-24 | 中国航空工业第一集团公司北京长城计量测试技术研究所 | No-motor type electric angle vibrative table |
| CN201083615Y (en) * | 2006-09-15 | 2008-07-09 | 江苏科技大学 | Shock absorber test stand for motorcycle |
| CN203808279U (en) * | 2014-05-08 | 2014-09-03 | 武汉大学 | Cylinder-type metal rubber isolation bearing |
| CN205559601U (en) * | 2016-05-06 | 2016-09-07 | 中国工程物理研究院总体工程研究所 | Zero clearance that can produce shear deformation in overweight field of force passes power coupling device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318201A (en) * | 2018-01-11 | 2018-07-24 | 中国工程物理研究院总体工程研究所 | A kind of super gravity field medium-high frequency high-thrust single degree of freedom horizontal vibration platform |
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| CN105736591B (en) | 2018-06-29 |
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