CN105717277B - High rotating speed geotechnical centrifuge hanging basket pocket fills backlash eliminating equipment - Google Patents

High rotating speed geotechnical centrifuge hanging basket pocket fills backlash eliminating equipment Download PDF

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CN105717277B
CN105717277B CN201610221541.6A CN201610221541A CN105717277B CN 105717277 B CN105717277 B CN 105717277B CN 201610221541 A CN201610221541 A CN 201610221541A CN 105717277 B CN105717277 B CN 105717277B
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hanging basket
pocket
leaf spring
inner cavity
cavity
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CN105717277A (en
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杨永生
罗龙
洪建忠
黎启胜
成永博
蒋春梅
何阳
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General Engineering Research Institute China Academy of Engineering Physics
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General Engineering Research Institute China Academy of Engineering Physics
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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Abstract

The invention discloses a kind of high rotating speed geotechnical centrifuge hanging basket pocket dress backlash eliminating equipments, it is installed on the pivoted arm of geotechnical centrifuge, the outer end of the pivoted arm of horizontal direction is equipped with pocket and fills inner cavity, the arm of hanging basket is rotatably connected by axis pin in the cavity wall for filling inner cavity in the pocket, the cavity wall of the pocket dress inner cavity is equipped with " u "-shaped mouth and its outer end opening, the axis pin passes through the " u "-shaped mouth, the outer end of the " u "-shaped mouth is equipped with vertical leaf spring, and the upper/lower terminal of the leaf spring is respectively arranged in the cavity wall of the pocket dress inner cavity.The present invention is using the " u "-shaped mouth on pivoted arm and the structure of leaf spring cooperation, the gap in hanging basket pocket dress technology between hanging basket bottom and pivoted arm is eliminated using the deflection of leaf spring, it is simpler that structure compares traditional cylinder structure, and gap process need not be offseted and artificially controlled, careful design need only be carried out to the parameter and installation site of leaf spring using the prior art and the gap purpose that disappears can be realized, easy to use and cost is relatively low, convenient for promoting.

Description

High rotating speed geotechnical centrifuge hanging basket pocket fills backlash eliminating equipment
Technical field
The present invention relates to a kind of geotechnical centrifuge hanging basket pocket assembling device more particularly to a kind of high rotating speed geotechnical centrifuge hanging baskets Pocket fills backlash eliminating equipment.
Background technology
Theoretical research using scale model in engineering practice, often studying the attribute of jobbie.It is tried in geotechnical model In testing, using the non-linear plastoelastic soil body as object, with centrifugal inertial force come simulated gravity, improve the similitude of model, can gram It takes soil indicator in theoretical calculation and is not inconsistent practical influence with simplification hypothesis, can also reduce cost, time-consuming prototype measurement.In this way Model test, referred to as geotechnical centrifugal model test, the equipment for generating inertia force are exactly geotechnical centrifuge.
In geotechnical centrifuge, hanging basket is important component, and hanging basket is to place test model and install the flat of airborne equipment Platform.Hanging basket generally uses lifting mode, as shown in Figure 1, hanging basket 1 to be installed on to the both ends end of pivoted arm 3, the arm 2 of hanging basket 1 with Pivoted arm 3 is rotatably connected using hinge or axis pin.But for operating in the centrifugal basket under nearly thousand g value centrifugal fields, building ring Border is extremely harsh, hanging basket itself overload especially severe, while hanging basket and the stress of pivoted arm junction are also very big, these are to hanging basket Structure and intensity propose very high requirement, if still many difficulties can be encountered by lifting mode design and installation hanging basket.
So a kind of more reasonably hanging basket mounting means being employed in the geotechnical centrifuge of high-g level --- pocket fills, former Reason is that hanging basket is mounted on inside pivoted arm, and most of hanging basket load, concrete structure such as Fig. 2 institutes are carried using pivoted arm end crossbeam Show, the both ends of pivoted arm are respectively equipped with pocket dress inner cavity 4, and the arm 2 and the cavity wall of pocket dress inner cavity 4 of hanging basket 1 are revolved using hinge or axis pin Turn connection.
It can preferably solve the problems, such as that hanging basket stress is harsh in high speed geotechnical centrifuge using pocket dress mode, pocket dress mode Key technology be how hanging basket get rid of it is flat before, ensure that hanging basket bottom has enough gaps with pivoted arm end, make hanging basket smooth It gets rid of flat, gap between hanging basket bottom and pivoted arm crossbeam is eliminated in time again reaching certain rotating speed, hanging basket when making the centrifuge work Can be in contact with pivoted arm crossbeam so that pivoted arm can effectively carry the load of hanging basket, so as to ensure pocket dress validity and from The safety of scheming.
Make a general survey of geotechnical centrifuge both domestic and external, using pocket dress mode centrifuge it is less, main cause be centrifuge from Heart acceleration is not too high, and lifting can meet requirement.Data shows that Japan once employed pocket dress in its centrifuge Form, structure as shown in Figure 3 and Figure 4, connected, the length of bent axle 6 between the arm 2 of hanging basket 1 and pivoted arm 3 using bent axle 6 Section axis positioning, control armed lever (unmarked in figure) are connected firmly with bent axle 6, are pushed and pulled respectively come band dynamic crankshaft 6 by a pair of of oil cylinder 5 Rotation realizes that hanging basket 1 and the outside inner wall of pocket dress inner cavity 4 contact, realizes the gap function that disappears, wherein, bent axle 6, control armed lever and oil Cylinder 5 collectively constitutes hanging basket driving device.
Above-mentioned gap-eliminating structure uses eight oil cylinders 5, and shortcoming is that structure is excessively complicated, of high cost, and to realize pair The coordination control of all oil cylinders 5 can be relatively difficult, the big and numerous and diverse structure of control difficulty under high centrifugal field system itself By by larger centrifugal forces affect, no matter from installation safety and activity reliability, high centrifugal field may not be all adapted to Running environment.
Invention content
The purpose of the present invention is that solve the above-mentioned problems and provides one kind and turn convenient for application and lower-cost height Fast geotechnical centrifuge hanging basket pocket fills backlash eliminating equipment.
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, is installed on the pivoted arm of geotechnical centrifuge, level side To the outer end of the pivoted arm be equipped with pocket and fill inner cavity, the arm of hanging basket is rotatably connected by axis pin fills the cavity wall of inner cavity in the pocket On, the cavity wall of the pocket dress inner cavity is equipped with " u "-shaped mouth and its outer end opening, and the axis pin passes through the " u "-shaped mouth, described The outer end of " u "-shaped mouth is equipped with vertical leaf spring, and the upper/lower terminal of the leaf spring is respectively arranged in the cavity wall of the pocket dress inner cavity On.
In above structure, the structure of " u "-shaped mouth and leaf spring is most important innovation structure, when hanging basket remains static i.e. During plumbness, the axis pin for installing hanging basket is placed in " u "-shaped mouth and bears hanging basket gravity by pivoted arm, and leaf spring, which plays, limits axis pin The effect of position;After pivoted arm rotation, during hanging basket starts to rotate and not rotate to level, the centrifugal force the being subject to effect of basket In leaf spring, leaf spring occurs flexible deformation and makes hanging basket microspur moves outward at this time;Hanging basket is rotated in place and during basic horizontal, hangs Basket is moved in place and is completely attached to the outside cavity wall of pocket dress inner cavity outward, so as to eliminate hanging basket and cavity wall on the outside of pocket dress inner cavity Between gap, most of centrifugal force of hanging basket is made to be born by pivoted arm, that is, the most of hanging basket of pivoted arm crossbeam carrying is utilized to carry Lotus realizes the purpose of safe operation.
Preferably, the upper end of the leaf spring is equipped with round hole, the lower end of the leaf spring is equipped with waist-shaped hole, multiple installation spiral shells Nail is connect after being each passed through the round hole and waist-shaped hole of the leaf spring with the cavity wall of pocket dress inner cavity.The effect of waist-shaped hole is Make leaf spring when being oppressed with certain deformation space, it is because the rotation of hanging basket is from bottom to top that waist-shaped hole is set on lower end , the pressure to leaf spring is also trend from bottom to top, so the lower end of leaf spring can firstly there are Deformation Demands.
Specifically, the cavity wall of the pocket dress inner cavity is equipped with installation cavity, and a hanging basket includes two arms, each The arm is installed in an installation cavity body, and the " u "-shaped mouth is equipped on the cavity wall of the installation cavity both sides, The both ends of the axis pin are each passed through corresponding two " u "-shaped mouths, and the outer end correspondence of each " u "-shaped mouth is equipped with One leaf spring.
The beneficial effects of the present invention are:
The present invention eliminates hanging basket using the " u "-shaped mouth on pivoted arm and the structure of leaf spring cooperation using the deflection of leaf spring Gap in pocket dress technology between hanging basket bottom and pivoted arm, structure are simpler compared to traditional cylinder structure, and need not offset gap Process is artificially controlled, and parameter and installation site the progress careful design of leaf spring need only be can be realized using the prior art and disappeared Gap purpose, easy to use and cost is relatively low, convenient for promoting.
Description of the drawings
Fig. 1 is the dimensional structure diagram of tradition lifting hanging basket and pivoted arm;
Fig. 2 is the dimensional structure diagram of traditional pocket dress hanging basket and pivoted arm;
Fig. 3 is the dimensional structure diagram of traditional pocket dress hanging basket, hanging basket driving device and pivoted arm;
Fig. 4 is traditional pocket dress hanging basket and the dimensional structure diagram of hanging basket driving device;
Stereochemical structure signal when Fig. 5 is high rotating speed geotechnical centrifuge hanging basket pocket dress backlash eliminating equipment application of the present invention Figure;
Sectional perspective structure when Fig. 6 is high rotating speed geotechnical centrifuge hanging basket pocket dress backlash eliminating equipment application of the present invention is shown It is intended to;
Sectional perspective structure point when Fig. 7 is high rotating speed geotechnical centrifuge hanging basket pocket dress backlash eliminating equipment application of the present invention Solve schematic diagram;
Fig. 8 is the dimensional structure diagram of leaf spring of the present invention.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings:
As shown in Figure 5-Figure 8, high rotating speed geotechnical centrifuge hanging basket pocket dress backlash eliminating equipment of the present invention be installed on geotechnique from On the pivoted arm 3 of scheming, the outer end of the pivoted arm 3 of horizontal direction is equipped with pocket and fills inner cavity 4, and the arm 2 of hanging basket 1 is rotated by axis pin 13 to be connected It is connected in the cavity wall of pocket dress inner cavity 4, the cavity wall of pocket dress inner cavity 4 is equipped with the installation cavity 7 of outer openings, and a hanging basket 1 includes Two arms 2, each arm 2 are installed in an installation cavity 7, and (cavity wall is also pocket to the cavity wall of 7 both sides of installation cavity Fill inner cavity 4 cavity wall) on be equipped with " u "-shaped mouth 12 and its outer end opening, the both ends of axis pin 13 are each passed through corresponding two " U " Shape mouth 12, the middle part of axis pin 13 pass through the through-hole 11 at 2 top of arm, and there are one the corresponding installations in outer end of each " u "-shaped mouth 12 Vertical leaf spring 8, the upper end of leaf spring 8 are equipped with round hole 82, and the lower end of leaf spring 8 is equipped with waist-shaped hole 81, multiple mounting screw difference (cavity wall is also the cavity of installation cavity 7 with the cavity wall of pocket dress inner cavity 4 after across the round hole 82 of leaf spring 8 and waist-shaped hole 81 Wall) connection.
The end cap 9 for being placed on 12 both side surface of " u "-shaped mouth and the mounting screw for installing leaf spring 8 are also shown in Fig. 6 Briquetting 10, alternatively, the 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 dress backlash eliminating equipment of the present invention is: After pivoted arm 3 starts rotation, under centrifugal field, hanging basket 1 applies centrifugal load to axis pin 13, and axis pin 13 is in " u "-shaped mouth 12 by edge Pivoted arm 3 make it is a certain range of be displaced outwardly, so as to which centrifugal force is passed to leaf spring 8, and the lower end connecting hole of leaf spring 8 is designed as waist Type hole 81 (also referred to as kidney slot) so that leaf spring 8 become a upper end fix and lower end can microspur displacement freely supported structure, plate The parameter of spring 8 need to specially be designed according to practical centrifuge structure index, and leaf spring 8 will generate a certain amount of under Centrifugal Load Deformation, it is flat to ensure that hanging basket 1 is smoothly got rid of, and ensure before certain rotating speed the outboard cavity of the pocket dress inner cavity 4 of hanging basket 1 and pivoted arm 3 It is completely attached between wall, eliminates the gap between the bottom of hanging basket 1 and pivoted arm 3, realize that pivoted arm 3 carries the work(of the load of hanging basket 1 Energy.
Above-described embodiment is presently preferred embodiments of the present invention, is not the limitation to technical solution of the present invention, as long as Without the technical solution that creative work can be realized on the basis of above-described embodiment, it is regarded as falling into patent of the present invention Rights protection scope in.

Claims (3)

1. a kind of high rotating speed geotechnical centrifuge hanging basket pocket dress backlash eliminating equipment, is installed on the pivoted arm of geotechnical centrifuge, horizontal direction The outer end of the pivoted arm be equipped with pocket and fill inner cavity, the arm of hanging basket is rotatably connected by axis pin fills the cavity wall of inner cavity in the pocket On, it is characterised in that:The cavity wall of the pocket dress inner cavity is equipped with " u "-shaped mouth and its outer end opening, and the axis pin passes through " U " Shape mouth, the outer end of the " u "-shaped mouth are equipped with vertical leaf spring, and the upper/lower terminal of the leaf spring is respectively arranged in the pocket dress In the cavity wall of inner cavity.
2. high rotating speed geotechnical centrifuge hanging basket pocket dress backlash eliminating equipment according to claim 1, it is characterised in that:The leaf spring Upper end be equipped with round hole, the lower end of the leaf spring is equipped with waist-shaped hole, and multiple mounting screws are each passed through the circle of the leaf spring Cavity wall behind hole and waist-shaped hole with pocket dress inner cavity is connect.
3. high rotating speed geotechnical centrifuge hanging basket pocket dress backlash eliminating equipment according to claim 1 or 2, it is characterised in that:It is described The cavity wall of pocket dress inner cavity is equipped with installation cavity, and a hanging basket includes two arms, and each arm is installed on one In the installation cavity body, the " u "-shaped mouth, the both ends difference of the axis pin are equipped on the cavity wall of the installation cavity both sides Across the corresponding two " u "-shaped mouths, there are one the leaf springs for the corresponding installation in outer end of each " u "-shaped mouth.
CN201610221541.6A 2016-04-11 2016-04-11 High rotating speed geotechnical centrifuge hanging basket pocket fills backlash eliminating equipment Active CN105717277B (en)

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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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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
JP3314603B2 (en) * 1996-01-31 2002-08-12 株式会社日立製作所 Centrifugal load test equipment
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
JP5707882B2 (en) * 2010-11-12 2015-04-30 日立工機株式会社 Swing rotor for centrifuge and centrifuge
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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