CN105717277A - Clearance elimination device for hanging basket pocketing installation of high-rotating-speed geotechnical centrifuge - Google Patents
Clearance elimination device for hanging basket pocketing installation of high-rotating-speed geotechnical centrifuge Download PDFInfo
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- CN105717277A CN105717277A CN201610221541.6A CN201610221541A CN105717277A CN 105717277 A CN105717277 A CN 105717277A CN 201610221541 A CN201610221541 A CN 201610221541A CN 105717277 A CN105717277 A CN 105717277A
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Abstract
The invention discloses a clearance elimination device for hanging basket pocketing installation of a high-rotating-speed geotechnical centrifuge. The clearance elimination device is mounted on a rotating arm of the geotechnical centrifuge; pocketing installation inner cavities are formed in the outer ends of the rotating arm; suspension arms of a hanging basket are rotationally connected onto walls of the pocketing installation inner cavities through hinge pins; U-shaped openings are formed in the walls of the pocketing installation inner cavities, and openings are formed in the outer ends of the pocketing installation inner cavities; the hinge pins penetrate through the U-shaped openings; vertical plate springs are mounted at the outer ends of the U-shaped openings; the upper end and the lower end of each plate spring are mounted on the wall of the corresponding pocketing installation inner cavity respectively. With the adoption of the matched structure of the U-shaped openings and the plate springs on the rotating arm, clearance between the bottom of the hanging basket and the rotating arm in the hanging basket pocketing installation technology is eliminated according to deformation of the plate springs, compared with a traditional oil cylinder structure, the structure of the clearance elimination device is simpler, manual control for a clearance elimination process is not needed, and all that is required is to accurately design parameters and installation positions of the plate springs with the existing technology, and the purpose of clearance elimination can be achieved; the clearance elimination device is convenient to use and lower in cost, and the popularization is facilitated.
Description
Technical field
The present invention relates to a kind of geotechnical centrifuge hanging basket pocket assembling device, particularly relate to a kind of high rotating speed geotechnical centrifuge hanging basket pocket dress backlash eliminating equipment.
Background technology
Theoretical research is with engineering practice, and the attribute of jobbie studied by normal applications similar model.In geotechnical model test, with the non-linear plastoelastic soil body for object, carry out simulated gravity with centrifugal inertial force, improve the similarity of model, soil indicator in Theoretical Calculation can be overcome to suppose not to be inconsistent actual impact with simplifying, it is possible to reduce cost, time-consuming prototype measurement.Such model test, is referred to as geotechnical centrifugal model test, and the equipment producing inertia force is exactly geotechnical centrifuge.
In geotechnical centrifuge, hanging basket is important parts, and hanging basket is to place test model and install the platform of airborne equipment.Hanging basket is generally adopted lifting mode, as it is shown in figure 1, hanging basket 1 is installed on the end, two ends of pivoted arm 3, the arm 2 of hanging basket 1 adopts hinge or bearing pin to be rotatably connected with pivoted arm 3.But for operating in the centrifugal basket under nearly thousand g value centrifugal field, its working environment is abnormal harsh, hanging basket self overload especially severe, hanging basket is also very big with the stress of pivoted arm junction simultaneously, barrel structure and intensity are proposed very high requirement by these, if still pressing lifting mode design and installation hanging basket, a lot of difficulty can be run into.
So, the geotechnical centrifuge of high-g level have employed one more reasonably hanging basket mounting means pocket dress, its principle is to be arranged on inside pivoted arm by hanging basket, utilize pivoted arm end crossbeam carrying major part hanging basket load, concrete structure is as shown in Figure 2, the pocket that is respectively arranged at two ends with of pivoted arm fills inner chamber 4, and the arm 2 of hanging basket 1 fills the cavity wall of inner chamber 4 and adopts hinge or bearing pin to be rotatably connected with pocket.
Adopt pocket dress mode can solve the problem that in high speed geotechnical centrifuge, hanging basket stress is harsh preferably, the key technology of pocket dress mode is how before hanging basket gets rid of and puts down, ensure with pivoted arm end, there is enough gaps bottom hanging basket, hanging basket is made to get rid of smoothly flat, the gap bottom hanging basket and between pivoted arm crossbeam is eliminated when reaching certain rotating speed postscript, when enabling centrifuge to work, hanging basket contacts with pivoted arm crossbeam, pivoted arm is made can effectively to carry the load of hanging basket, thus ensureing the safety of effectiveness that pocket fills and centrifuge.
Making a general survey of geotechnical centrifuge both domestic and external, the centrifuge adopting pocket dress mode is less, and main cause is the centrifugal acceleration of centrifuge is not too high, and lifting just can meet instructions for use.Data shows, Japan once have employed the form of pocket dress in its centrifuge, its structure as shown in Figure 3 and Figure 4, uses bent axle 6 to connect between arm 2 and the pivoted arm 3 of its hanging basket 1, the long section axle location of bent axle 6, control armed lever (unmarked in figure) to connect firmly with bent axle 6, carry out push-and-pull respectively by a pair oil cylinder 5 to carry out band dynamic crankshaft 6 and rotate, it is achieved the outside contact internal walls of hanging basket 1 and pocket dress inner chamber 4, it is achieved the gap that disappears function, wherein, bent axle 6, control armed lever collectively constitute hanging basket driving device with oil cylinder 5.
Above-mentioned gap-eliminating structure adopts eight oil cylinders 5, its weak point is that structure is excessively complicated, cost is high, and to realize the coordination control to all oil cylinders 5 can be relatively difficult, control difficulty big, and numerous and diverse structure under high centrifugal field system self be subjected to bigger centrifugal forces affect, no matter from installing safety and activity reliability, all may not adapt to the running environment of high centrifugal field.
Summary of the invention
The purpose of the present invention is that provides one to be easy to application and lower-cost high rotating speed geotechnical centrifuge hanging basket pocket dress backlash eliminating equipment to solve the problems referred to above.
The present invention is achieved through the following technical solutions above-mentioned purpose:
A kind of high rotating speed geotechnical centrifuge hanging basket pocket dress backlash eliminating equipment, it is installed on the pivoted arm of geotechnical centrifuge, the outer end of the described pivoted arm of horizontal direction is provided with pocket dress inner chamber, the arm of hanging basket is rotatably connected in the cavity wall that described pocket fills inner chamber by bearing pin, the cavity wall of described pocket dress inner chamber is provided with " u "-shaped mouth and its outer end opening, the described bearing pin described " u "-shaped mouth of traverse, the outer end of described " u "-shaped mouth is provided with vertical leaf spring, and the upper/lower terminal of described leaf spring is respectively arranged in the cavity wall of described pocket dress inner chamber.
In said structure, the structure of " u "-shaped mouth and leaf spring is most important innovation structure, and when hanging basket remains static i.e. plumbness, the bearing pin installing hanging basket is placed in " u "-shaped mouth and by pivoted arm to bear hanging basket gravity, and leaf spring plays the effect that bearing pin is spacing；Pivoted arm starts to rotate at hanging basket and does not rotate to the process of level after rotating, and the centrifugal action being subject to of basket is in leaf spring, and now leaf spring generation elastic deformation also makes hanging basket microspur outward move；Hanging basket is rotated in place and during basic horizontal, hanging basket move into place outward and with pocket fill inner chamber outside cavity wall fully in contact with, thus the gap eliminated outside hanging basket and pocket dress inner chamber between cavity wall, the most of centrifugal force making hanging basket bears by pivoted arm, namely pivoted arm crossbeam carrying major part hanging basket load is utilized, it is achieved the purpose of safe operation.
As preferably, the upper end of described leaf spring is provided with circular port, and the lower end of described leaf spring is provided with waist-shaped hole, and multiple installation screws fill the cavity wall of inner chamber and are connected with described pocket after being each passed through the circular port of described leaf spring and waist-shaped hole.The effect of waist-shaped hole is in that to make leaf spring have certain deformation space when oppressed, waist-shaped hole is located at lower end, and to be because the rotation of hanging basket be from bottom to top, the pressure of leaf spring is also trend from bottom to top by it, so the lower end of leaf spring can firstly there are Deformation Demands.
Specifically, the cavity wall of described pocket dress inner chamber is provided with installation cavity, one described hanging basket includes two arms, each described arm is installed in a described installation cavity body, the cavity wall of described installation cavity both sides is equipped with described " u "-shaped mouth, the two ends of described bearing pin are each passed through two described " u "-shaped mouths of correspondence, and outer end all correspondences of each described " u "-shaped mouth are provided with a described leaf spring.
The beneficial effects of the present invention is:
The present invention adopts the structure that the " u "-shaped mouth on pivoted arm and leaf spring coordinate, the deflection utilizing leaf spring eliminates the gap in hanging basket pocket packing technique bottom hanging basket and between pivoted arm, it is simpler that structure compares traditional oils cylinder structure, and carry out manual control without offseting gap process, need only utilize prior art that parameter and the installation site of leaf spring are carried out careful design and can realize the gap purpose that disappears, easy to use and less costly, it is simple to promote.
Accompanying drawing explanation
Fig. 1 is the perspective view of tradition lifting hanging basket and pivoted arm；
Fig. 2 is the perspective view of tradition pocket dress hanging basket and pivoted arm；
Fig. 3 is the perspective view of tradition pocket dress hanging basket, hanging basket driving device and pivoted arm；
Fig. 4 is the perspective view of tradition pocket dress hanging basket and hanging basket driving device；
Fig. 5 is perspective view during high rotating speed geotechnical centrifuge hanging basket pocket of the present invention dress backlash eliminating equipment application；
Fig. 6 is sectional perspective structural representation during high rotating speed geotechnical centrifuge hanging basket pocket of the present invention dress backlash eliminating equipment application；
Fig. 7 is sectional perspective STRUCTURE DECOMPOSITION schematic diagram during high rotating speed geotechnical centrifuge hanging basket pocket of the present invention dress backlash eliminating equipment application；
Fig. 8 is the perspective view of leaf spring of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 5-Figure 8, high rotating speed geotechnical centrifuge hanging basket pocket of the present invention dress backlash eliminating equipment is installed on the pivoted arm 3 of geotechnical centrifuge, the outer end of the pivoted arm 3 of horizontal direction is provided with pocket dress inner chamber 4, the arm 2 of hanging basket 1 is rotatably connected in the cavity wall that pocket fills inner chamber 4 by bearing pin 13, the cavity wall of pocket dress inner chamber 4 is provided with the installation cavity 7 of outer openings, one hanging basket 1 includes two arms 2, each arm 2 is installed on one and installs in cavity 7, install and the cavity wall (this cavity wall is also the cavity wall that pocket fills inner chamber 4) of cavity 7 both sides is equipped with " u "-shaped mouth 12 and its outer end opening, the two ends of bearing pin 13 are each passed through two " u "-shaped mouths 12 of correspondence, the through hole 11 at traverse arm 2 top, middle part of bearing pin 13, the outer end of each " u "-shaped mouth 12 is all corresponding is provided with a vertical leaf spring 8, the upper end of leaf spring 8 is provided with circular port 82, the lower end of leaf spring 8 is provided with waist-shaped hole 81, multiple installation screws fill the cavity wall (this cavity wall is also the cavity wall installing cavity 7) of inner chamber 4 and are connected with pocket after being each passed through the circular port 82 of leaf spring 8 and waist-shaped hole 81.
Fig. 6 also show the end cap 9 being placed on " u "-shaped mouth 12 both side surface and for installing the briquetting 10 installed on screw of leaf spring 8, or, this briquetting 10 can also be trim.
As shown in Figure 5-Figure 8, the operation principle of high rotating speed geotechnical centrifuge hanging basket pocket of the present invention dress backlash eliminating equipment is: after pivoted arm 3 starts rotation, under centrifugal field, bearing pin 13 is applied centrifugal load by hanging basket 1, bearing pin 13 will make a range of being displaced outwardly along pivoted arm 3 in " u "-shaped mouth 12, thus centrifugal force being passed to leaf spring 8, and the lower end connecting hole of leaf spring 8 is designed as waist-shaped hole 81 (also referred to as mounting hole), make leaf spring 8 become a upper end to fix and lower end can the freely supported structure of microspur displacement, the parameter of leaf spring 8 need to according to actual centrifuge structure index specialized designs, under Centrifugal Load, leaf spring 8 will produce a certain amount of deformation, ensure that hanging basket 1 gets rid of flat smoothly, and ensure before certain rotating speed hanging basket 1 and pivoted arm 3 pocket dress inner chamber 4 outside cavity wall between fully in contact with, eliminate the gap between bottom and the pivoted arm 3 of hanging basket 1, realize the function that pivoted arm 3 carries the load of hanging basket 1.
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 (3)
1. one kind high rotating speed geotechnical centrifuge hanging basket pocket dress backlash eliminating equipment, it is installed on the pivoted arm of geotechnical centrifuge, the outer end of the described pivoted arm of horizontal direction is provided with pocket dress inner chamber, the arm of hanging basket is rotatably connected in the cavity wall that described pocket fills inner chamber by bearing pin, it is characterized in that: the cavity wall of described pocket dress inner chamber is provided with " u "-shaped mouth and its outer end opening, the described bearing pin described " u "-shaped mouth of traverse, the outer end of described " u "-shaped mouth is provided with vertical leaf spring, and the upper/lower terminal of described leaf spring is respectively arranged in the cavity wall of described pocket dress inner chamber.
2. high rotating speed geotechnical centrifuge hanging basket pocket according to claim 1 dress backlash eliminating equipment, it is characterized in that: the upper end of described leaf spring is provided with circular port, the lower end of described leaf spring is provided with waist-shaped hole, and multiple installation screws fill the cavity wall of inner chamber and are connected with described pocket after being each passed through the circular port of described leaf spring and waist-shaped hole.
3. high rotating speed geotechnical centrifuge hanging basket pocket according to claim 1 and 2 dress backlash eliminating equipment, it is characterized in that: the cavity wall of described pocket dress inner chamber is provided with installation cavity, one described hanging basket includes two arms, each described arm is installed in a described installation cavity body, the cavity wall of described installation cavity both sides is equipped with described " u "-shaped mouth, the two ends of described bearing pin are each passed through two described " u "-shaped mouths of correspondence, and outer end all correspondences of each described " u "-shaped mouth are provided with a described leaf spring.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610221541.6A CN105717277B (en) | 2016-04-11 | 2016-04-11 | High rotating speed geotechnical centrifuge hanging basket pocket fills backlash eliminating equipment |
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| CN201610221541.6A CN105717277B (en) | 2016-04-11 | 2016-04-11 | High rotating speed geotechnical centrifuge hanging basket pocket fills backlash eliminating equipment |
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| CN105717277A true CN105717277A (en) | 2016-06-29 |
| CN105717277B CN105717277B (en) | 2018-06-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109225681A (en) * | 2018-10-30 | 2019-01-18 | 中国工程物理研究院总体工程研究所 | Adaptive load conversion method and structure under a kind of super gravity field |
Citations (8)
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| US3393864A (en) * | 1966-04-11 | 1968-07-23 | Beckman Instruments Inc | Centrifuge apparatus |
| US3935995A (en) * | 1975-05-07 | 1976-02-03 | E. I. Du Pont De Nemours And Company | Swinging bucket centrifuge rotor |
| US4391597A (en) * | 1981-06-29 | 1983-07-05 | Beckman Instruments, Inc. | Hanger for centrifuge buckets |
| TW306976B (en) * | 1996-01-31 | 1997-06-01 | Hitachi Ltd | Load testing apparatus using centrifugal force |
| JP2000131201A (en) * | 1998-10-26 | 2000-05-12 | Sumikin Kansai Kogyo Kk | Centrifugal force load device capable of shot impact experiment |
| JP2006159005A (en) * | 2004-12-02 | 2006-06-22 | Hitachi Koki Co Ltd | Centrifugal machine |
| CN102463195A (en) * | 2010-11-12 | 2012-05-23 | 日立工机株式会社 | Siwing-bucket-rotor for centrifugal separator, and centrifugal separator |
| CN205484336U (en) * | 2016-04-11 | 2016-08-17 | 中国工程物理研究院总体工程研究所 | High rotational speed geotechnique centrifuge hanging flower basket pocket dress backlash eliminating equipment |
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2016
- 2016-04-11 CN CN201610221541.6A patent/CN105717277B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3393864A (en) * | 1966-04-11 | 1968-07-23 | Beckman Instruments Inc | Centrifuge apparatus |
| US3935995A (en) * | 1975-05-07 | 1976-02-03 | E. I. Du Pont De Nemours And Company | Swinging bucket centrifuge rotor |
| US4391597A (en) * | 1981-06-29 | 1983-07-05 | Beckman Instruments, Inc. | Hanger for centrifuge buckets |
| TW306976B (en) * | 1996-01-31 | 1997-06-01 | Hitachi Ltd | Load testing apparatus using centrifugal force |
| JP2000131201A (en) * | 1998-10-26 | 2000-05-12 | Sumikin Kansai Kogyo Kk | Centrifugal force load device capable of shot impact experiment |
| JP2006159005A (en) * | 2004-12-02 | 2006-06-22 | Hitachi Koki Co Ltd | Centrifugal machine |
| CN102463195A (en) * | 2010-11-12 | 2012-05-23 | 日立工机株式会社 | Siwing-bucket-rotor for centrifugal separator, and centrifugal separator |
| CN205484336U (en) * | 2016-04-11 | 2016-08-17 | 中国工程物理研究院总体工程研究所 | High rotational speed geotechnique centrifuge hanging flower basket pocket dress backlash eliminating equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109225681A (en) * | 2018-10-30 | 2019-01-18 | 中国工程物理研究院总体工程研究所 | Adaptive load conversion method and structure under a kind of super gravity field |
| CN109225681B (en) * | 2018-10-30 | 2023-09-05 | 中国工程物理研究院总体工程研究所 | Self-adaptive bearing conversion method and structure under hypergravity field |
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| CN105717277B (en) | 2018-06-08 |
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