CN208494601U - Geotechnical centrifuge dynamic equilibrium regulating system - Google Patents
Geotechnical centrifuge dynamic equilibrium regulating system Download PDFInfo
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- CN208494601U CN208494601U CN201821205880.6U CN201821205880U CN208494601U CN 208494601 U CN208494601 U CN 208494601U CN 201821205880 U CN201821205880 U CN 201821205880U CN 208494601 U CN208494601 U CN 208494601U
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- geotechnical centrifuge
- dynamic equilibrium
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Abstract
The utility model discloses geotechnical centrifuge dynamic equilibrium regulating systems, including the high water tank for water storage being mounted in the bearing of geotechnical centrifuge pivoted arm;The even number end water tank being mounted on geotechnical centrifuge pivoted arm two swivel arms of bearing, is mounted on the more root canal roads for being used to be connected to high water tank Yu end water tank on geotechnical centrifuge.The utility model carries out trim by filling the water into end water tank, and centrifugal field is big at distal tip water tank, and required trim water is small, therefore is greatly improved trim ability by limited time in installation space.And improved with centrifugal field g value, trim ability increases accordingly;The Gravitative Loads of dynamic equilibrium regulating system effective use centrifugal force and water are filled the water, and without adding driving device, enormously simplify system composition;For dynamic equilibrium regulating system there is no the element that motor etc. is influenced stable working performance by centrifugal field in high centrifugation field areas, system reliability is higher, is limited by centrifugal field small, and use scope is wider.
Description
Technical field
The utility model belongs to geotechnical centrifuge dynamic equilibrium technical field, and in particular to geotechnical centrifuge dynamic equilibrium tune
Section system.
Background technique
Geotechnical centrifuge test model weight is generally very big, and far from spindle central.Under high centrifugal field, it is fraction of not
Influencing caused by balance quality all can be by the amplification at N times.And geotechnical model is complex-shaped, quality is soft uneven, is trying
Mass center changes inevitable during testing.When especially doing dam-break experiments, the mass center variation caused by model collapses on a large scale will
It can be very big.
And unbalance dynamic load is to influence the principal element of centrifugation machine vibration, less serious case reduces centrifuge smoothness of operation, adds
Fast moving component abrasion, shortens machine service life;Severe one makes bearing damage or revolving speed be difficult to reach design objective;What is more,
When unbalanced load is more than the design threshold values of support construction, it would be possible to cause main shaft fatigue fracture or even entire main machine structure
Danger of toppling.Therefore, in addition to the static trim before test, the quality of dynamic balance adjustment system design is to determine geotechnical centrifuge
One of key technology of quality of design.
Currently, the dynamic balance adjustment mode of geotechnical centrifuge mainly has following a few classes:
The first kind is to install clump weight on centrifuge pivoted arm, by motor or hydraulic system drive clump weight movement come
The effect of balancedunbalanced load.(the online dynamic equilibrium regulating mechanism of geotechnical centrifuge, the patent No.: 201210112913.3)
Second class is to install water tank at pivoted arm both ends, pushes the water in water tank by high-pressure air source to adjust pivoted arm both ends
Unbalance dynamic.(Sun Shu ancestral's geotechnical centrifuge Design Summary (three), water conservancy water transport scientific research, 1991,9 (3))
Third class is the clump weight replaced in counterweight hanging basket with water tank.End is tested in centrifuge operation process to generate not
When equilibrant force, filled the water into water tank to be balanced and adjust.(Novel balance self-regulation system of geotechnical centrifuge, the patent No.:
201320405085.2)
The shortcomings that above-mentioned first kind balance adjustment mechanism is: counterweight block size is larger, and installation space is limited;Trim ability has
Limit;System complicated composition;System reliability is poor, is not suitable for and uses under high centrifugal field.
The reason of leading to disadvantages mentioned above is: centrifuge pivoted arm inner space is limited, clump weight moving distance and clump weight ruler
It is very little to there is larger limitation, it is limited so as to cause trim ability;Motor driven needs heavy-duty motor, screw rod and guarantees to synchronize
Property mechanism etc., hydraulic-driven then needs motor, accumulator and corresponding matching component etc., and two kinds of driving methods compositions are more
It is complicated;Under high centrifugal field, reliability, the rigidity of screw rod of motor cannot all be guaranteed very well, the pipe of hydraulic drive mechanism
Road, pipe seal performance hardly result in guarantee.
The shortcomings that above-mentioned second class balance adjustment mechanism is: trim ability is limited, and system structure is complicated, be not suitable for it is high from
Psychological field.
The reason of leading to disadvantages mentioned above, is: the moving mass of water tank internal water and apart from limited, leads to system trim ability
It is insufficient;Trimming system need to be equipped with the structures such as gas cylinder or air compressor machine, high voltage adjusting air valve, system complicated composition;Under high centrifugal field
Pipeline, valve air-tightness are not easy to guarantee, and control element is under high centrifugal field, and system reliability is not high.
The shortcomings that above-mentioned third class balance adjustment mechanism is: water tank space is limited, and dynamically balancing ability is low, can only carry out list
To trim.
The reason of leading to disadvantages mentioned above, is: it is placed in counterweight hanging basket with water tank and replaces clump weight, it is quiet firstly the need of guaranteeing
Secondly trim ability just can be carried out dynamically balancing.And tank size is limited, and water density is small, matches as static state and has usually occupied
The big quantity space of water tank causes system dynamically balancing ability to be had a greatly reduced quality.Further, since being only equipped with water tank in Balance weight end, therefore only
It can be carried out unidirectional trim.
We has developed a kind of geotechnical centrifuge dynamic equilibrium regulating system in order to solve problem above.
Summary of the invention
The purpose of this utility model is that solve the above-mentioned problems and provides a kind of geotechnical centrifuge dynamic equilibrium tune
Section system.
The utility model achieves the above object through the following technical schemes:
Geotechnical centrifuge dynamic equilibrium regulating system is mounted on geotechnical centrifuge and for its dynamic balance adjustment, dynamic
Balance-conditioning system includes:
The high water tank for water storage being mounted in the bearing of geotechnical centrifuge pivoted arm;
The even number end water tank being mounted on geotechnical centrifuge pivoted arm two swivel arms of bearing, positioned at pivoted arm bearing two sides
End water tank is symmetrically installed relative to the centre of gyration of geotechnical centrifuge, and the installation site of high water tank is higher than the peace of end water tank
Holding position;
Be mounted on geotechnical centrifuge for being connected to more root canal roads of high water tank Yu end water tank, the one of a root canal road
End is connected to high water tank, and the other end is connected to an end water tank;Every root canal road is provided with for sending water open and close control
Servo valve and for water flow statistics flowmeter.
The installation site of high water tank is higher than the installation site of end water tank, can keep depositing between high water tank and end water tank
It is poor in certain altitude, convenient for discharging water to end water tank.
Specifically, each end water tank includes two semicolumn water tanks, and two semicolumn water tanks splice up and down, and will turn
Arm is clamped between two semicolumn water tanks, and the both ends of two semicolumn water tanks are separately fixed at two positioning of geotechnical centrifuge
On ring, positioning ring is fixedly mounted in pull strap;Each semicolumn water tank passes through a root canal road and is connected to high water tank, and every
Servo valve and flowmeter are provided on pipeline.
End water tank is installed between two positioning rings, by positioning ring bear caused by end water tank and internal water from
Mental power function.
Preferably, end water tank is installed far from the centre of gyration of geotechnical centrifuge;Servo valve and flowmeter close to geotechnique from
The centre of gyration of scheming is installed.
It avoids servo valve and flowmeter from generating excessive its working performance of centrifugal force function influence, guarantees its reliability.
Specifically, it is provided with water tank mounting base in pivoted arm bearing, high water tank is mounted in water tank mounting base.
Each semicolumn water tank passes through a root canal road and is connected to the bottom end of high water tank.
It preferably, is interlayer reinforced structure inside semicolumn water tank.
Because being subjected to very big centrifugal force effect in high-g level lower half cylinder water tank, therefore, end waterbox design is at interlayer reinforcement
Structure guarantees that water tank integrally has enough intensity requirements.
Preferably, the pivoted arm of geotechnical centrifuge is bicylindrical shape pulling force band structure, and end water tank is four, pivoted arm bearing
Two end water tanks are set on every swivel arm, and two semicolumn water tanks of the same end water tank splice up and down, and by pivoted arm
One cylindrical pull strap is clamped between two semicolumn water tanks.
Preferably, the centre of gyration of geotechnical centrifuge is on the axial line of high water tank.
Avoidable high water tank, which is under high centrifugal field, bears larger centrifugal force effect.
The utility model has the beneficial effects that:
The geotechnical centrifuge dynamic equilibrium regulating system of the utility model:
1, trim being carried out by filling the water into end water tank, centrifugal field is big at distal tip water tank, and required trim water is small,
Therefore trim ability is greatly improved by limited time in installation space.And improved with centrifugal field g value, trim ability increases accordingly.
2. the Gravitative Loads of dynamic equilibrium regulating system effective use centrifugal force and water are filled the water, without adding driving dress
It sets, enormously simplifies system composition.
3. there is no motor etc., to be influenced working performance by centrifugal field steady in height centrifugation field areas for dynamic equilibrium regulating system
Qualitative element, system reliability is higher, is limited by centrifugal field small, and use scope is wider.
Detailed description of the invention
Fig. 1 is the mounting structure schematic diagram of the utility model;
Fig. 2 is the structural schematic diagram of the utility model;
Fig. 3 is the structural schematic diagram of the utility model medial end portions water tank.
In figure: 1, pivoted arm supports;2, water tank mounting base;3, dynamic equilibrium regulating system;31, high water tank;32, servo
Valve;33, flowmeter;34, pipeline;35, end water tank;4, positioning ring;5, pull strap;6, counterweight hanging basket;7, hanging basket is tested;8, turn
Arm.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
As Figure 1-Figure 2, geotechnical centrifuge dynamic equilibrium regulating system 3 is mounted on geotechnical centrifuge and for it
Dynamic balance adjustment, dynamic equilibrium regulating system 3 include: the high position for water storage being mounted in geotechnical centrifuge pivoted arm bearing 1
Water tank 31;The even number end water tank 35 being mounted on geotechnical centrifuge pivoted arm 1 liang of swivel arm 8 of bearing, is located at pivoted arm and supports 1 liang
The end water tank 35 of side is symmetrically installed relative to the centre of gyration of geotechnical centrifuge, and the installation site of high water tank 31 is higher than end
The installation site of water tank 35;It is mounted on the more root canal roads for being used to be connected to high water tank 31 Yu end water tank 35 on geotechnical centrifuge
34, the one end on a root canal road 34 is connected to high water tank 31, and the other end is connected to an end water tank 35;On every root canal road 34
It is provided with the servo valve 32 for sending water open and close control and the flowmeter 33 for water flow statistics.
The installation site of high water tank 31 is higher than the installation site of end water tank 35, can keep high water tank 31 and end water
It is poor that there are certain altitudes between case 35, convenient for discharging water to end water tank 35.
Each end water tank 35 includes two semicolumn water tanks, and two semicolumn water tanks splice up and down, and pivoted arm 8 is pressed from both sides
It holds between two semicolumn water tanks, the both ends of two semicolumn water tanks are separately fixed at two positioning rings 4 of geotechnical centrifuge
On, positioning ring 4 is fixedly mounted in pull strap 5;Each semicolumn water tank passes through a root canal road 34 and is connected to high water tank 31,
Servo valve 32 and flowmeter 33 are provided on every root canal road 34.
End water tank 35 is installed between two positioning rings 4, bears end water tank 35 by positioning ring 4 and internal water is produced
Raw centrifugal force effect.
End water tank 35 is installed far from the centre of gyration of geotechnical centrifuge;Servo valve 32 and flowmeter 33 are close to geotechnique's centrifugation
The centre of gyration of machine is installed.
It avoids servo valve 32 and flowmeter 33 from generating excessive its working performance of centrifugal force function influence, guarantees that it is reliable
Property.
It is provided with water tank mounting base 2 in pivoted arm bearing 1, high water tank 31 is mounted in water tank mounting base 2.
Each semicolumn water tank passes through a root canal road 34 and is connected to the bottom end of high water tank 31.
As shown in figure 3, being interlayer reinforced structure inside semicolumn water tank.
Because being subjected to very big centrifugal force effect in high-g level lower half cylinder water tank, therefore, end water tank 35 is designed to that interlayer adds
Muscle structure guarantees that water tank integrally has enough intensity requirements.
The pivoted arm 8 of geotechnical centrifuge be bicylindrical shape pulling force band structure, end water tank 35 be four, pivoted arm bearing 1 it is every
Two end water tanks 35 are set on swivel arm 8, and two semicolumn water tanks of the same end water tank 35 splice up and down, and by pivoted arm
The cylindrical pull strap of the one of 8 is clamped between two semicolumn water tanks.
The centre of gyration of geotechnical centrifuge is on the axial line of high water tank 31.
Avoidable high water tank 31, which is under high centrifugal field, bears larger centrifugal force effect.
Multiple servo valves 32, multiple flowmeters 33 are symmetrical both with respect to the centre of gyration of geotechnical centrifuge in the utility model
Installation.
Geotechnical centrifuge further includes the pivoted arm 8 being made of pivoted arm bearing 1, positioning ring 4 and pull strap 5 in the utility model;
Counterweight hanging basket 6, test hanging basket 7, these belong to the basic composed structure of geotechnical centrifuge, do not do to apply herein and state.
The utility model waits the sensor and host computer that can be fitted at pivoted arm bearing 1 when in use, works as test
End model mass center changes when generating out-of-balance force, and system measures out-of-balance force size by the sensor that pivoted arm supports at 1
And it is uploaded to host computer.Host computer calculates balance institute's water requirement by current centrifuge work g value and out-of-balance force size,
And issue instruction control accordingly servo valve 32 acts, water automatically flows into end water tank from high water tank 31 under the action of the centrifugal force
35, and water is monitored by flowmeter 33, guarantee water filling accuracy of measurement.Under real-time monitoring, dynamic equilibrium regulating system 3 occurs dynamic
Make to realize balance adjustment function.
The basic principles and main features and advantage of the utility model have been shown and described above.The technical staff of the industry
It should be appreciated that the present utility model is not limited to the above embodiments, the above embodiments and description only describe this
The principle of utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model also has various change
And improvement, these various changes and improvements fall within the scope of the claimed invention.The utility model requires protection scope
It is defined by appending claims and equivalents.
Claims (8)
1. geotechnical centrifuge dynamic equilibrium regulating system is mounted on geotechnical centrifuge and for its dynamic balance adjustment, feature
It is, dynamic equilibrium regulating system includes:
The high water tank for water storage being mounted in the bearing of geotechnical centrifuge pivoted arm;
The even number end water tank being mounted on geotechnical centrifuge pivoted arm two swivel arms of bearing, positioned at the end of pivoted arm bearing two sides
Water tank is symmetrically installed relative to the centre of gyration of geotechnical centrifuge, and the installation site of high water tank is higher than the installation position of end water tank
It sets;
Be mounted on geotechnical centrifuge for being connected to more root canal roads of high water tank Yu end water tank, the one end on a root canal road and
High water tank connection, the other end are connected to an end water tank;Every root canal road is provided with for sending watching for water open and close control
Take valve and the flowmeter for water flow statistics.
2. geotechnical centrifuge dynamic equilibrium regulating system according to claim 1, it is characterised in that: each end water tank is equal
Including two semicolumn water tanks, two semicolumn water tanks splice up and down, and pivoted arm are clamped between two semicolumn water tanks, two
The both ends of a semicolumn water tank are separately fixed on two positioning rings of geotechnical centrifuge, and positioning ring is fixedly mounted on pull strap
On;Each semicolumn water tank passes through a root canal road and is connected to high water tank, and every root canal road is provided with servo valve and flow
Meter.
3. geotechnical centrifuge dynamic equilibrium regulating system according to claim 1 or 2, it is characterised in that: end water tank is remote
Centre of gyration installation from geotechnical centrifuge;Servo valve and flowmeter are installed close to the centre of gyration of geotechnical centrifuge.
4. geotechnical centrifuge dynamic equilibrium regulating system according to claim 1, it is characterised in that: be arranged in pivoted arm bearing
There is water tank mounting base, high water tank is mounted in water tank mounting base.
5. geotechnical centrifuge dynamic equilibrium regulating system according to claim 2, it is characterised in that: each semicolumn water tank
It is connected to by a root canal road with the bottom end of high water tank.
6. geotechnical centrifuge dynamic equilibrium regulating system according to claim 2, it is characterised in that: inside semicolumn water tank
For interlayer reinforced structure.
7. geotechnical centrifuge dynamic equilibrium regulating system according to claim 2, it is characterised in that: geotechnical centrifuge turns
Arm is bicylindrical shape pulling force band structure, and end water tank is four, two end water tanks is arranged on every swivel arm of pivoted arm bearing, together
Two semicolumn water tanks of one end water tank splice up and down, and the one of pivoted arm cylindrical pull strap is clamped in two semicolumns
Between water tank.
8. geotechnical centrifuge dynamic equilibrium regulating system according to claim 1, it is characterised in that: geotechnical centrifuge returns
Turn center on the axial line of high water tank.
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