CN208373352U - Dynamic trimming system and the centrifuge for having dynamic trimming system - Google Patents
Dynamic trimming system and the centrifuge for having dynamic trimming system Download PDFInfo
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- CN208373352U CN208373352U CN201820881769.2U CN201820881769U CN208373352U CN 208373352 U CN208373352 U CN 208373352U CN 201820881769 U CN201820881769 U CN 201820881769U CN 208373352 U CN208373352 U CN 208373352U
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- 238000009966 trimming Methods 0.000 title claims abstract description 52
- 230000001360 synchronised effect Effects 0.000 claims abstract description 11
- 230000003068 static effect Effects 0.000 claims description 16
- 238000010276 construction Methods 0.000 claims description 13
- 230000033001 locomotion Effects 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 7
- 239000000446 fuel Substances 0.000 claims description 7
- 238000009355 double cropping Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 230000009471 action Effects 0.000 abstract description 6
- 230000004044 response Effects 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000009434 installation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model discloses dynamic trimming system and has the centrifuge of dynamic trimming system, with usually, move two mass blocks, energy trim out-of-balance force is twice of mobile single mass, the trim range of equilibrant force has been expanded, while an equal amount of out-of-balance force has been carried out with usually, the mobile distance of clump weight halves, run duration is substantially reduced, control efficiency is improved；It takes hydraulic-driven, hydraulic lock that can make trimming system quick response, reliably locks in predetermined position, keep balance system effectively reliable；Four hydraulic cylinders in pairs, are acted by two hydraulic cylinder synchronous in one group of proportional valve control, to guarantee that clump weight can be moved along guide rail is smooth；Hydraulic cylinder piston rod on the same axis of difference group is fixed with one, and guarantees the synchronization action of two groups of hydraulic cylinders, with the synchronous driving clump weight of four hydraulic cylinder collaborations, it is easier to realize higher control precision.
Description
Technical field
The utility model belongs to centrifuge balancing technique field, and in particular to moves trimming system and has dynamic trimming system
Centrifuge.
Background technique
To provide high-g level centrifugal field, centrifuge pivoted arm need to carry out high-speed rotation around main shaft, for the operation for guaranteeing whole equipment
Stablize, centrifuge rotating part should balance as far as possible, i.e., out-of-balance force should be as small as possible centrifuge during operation.Out-of-balance force makes
It obtains and generates dynamic loading in centrifuge operation process and then cause vibration equipment, cause system smoothness of operation and precision to reduce, fortune
Moving noise increase, moving component accelerated wear test, rotor can not operate normally, the lost of life etc..And out-of-balance force once exceeds and is
System design threshold, then cause centrifuge to topple or move, cause a serious accident.Dynamic balance system is automatic for realizing centrifuge,
Accurate trim reduces the out-of-balance force generated in the centrifuge course of work, stable when being centrifuge pivoted arm high speed rotation, reliable,
The critical component of safe operation, it is most important to the equipment safety of centrifuge.
Currently, the dynamically balanced principle of centrifuge is broadly divided into three classes: motor driven screw nut driving subband moves clump weight
Movement, hydraulic-driven clump weight is mobile and trim is carried out by way of filling the water in water tank.
1) it is mobile to move clump weight for motor driven screw nut driving subband: Institutes Of Technology Of Changsha's 150gt geotechnical centrifuge
Dynamic balance system is used cooperatively with dynamometric system by the way of motor driven feed screw nut pair and carries out online trim to centrifuge,
The centrifuge dynamic balance system self-balanced upper rotary is 200kg, and stroke is about 350mm, degree of regulation 1mm, the maximum being adjustable
Out-of-balance force is about 30kN.
2) trim is carried out by way of filling the water in water tank: institute of Yangtze River Water section is once in its CKY-200 type geotechnical centrifuge
On did the test that dynamically balancing is carried out with the mode to water tank with water, work on condition that centrifuge load end lay particular stress on, i.e., from
The centrifugal force of scheming imbalance itself and load end is big, is filled the water by water pump, solenoid valve into the water tank of Balance weight end and is matched to realize
It is flat.
3) hydraulic-driven clump weight is mobile: Tongji University 150gt geotechnical centrifuge dynamic balance system takes hydraulic cylinder to push away
The mobile mode of dynamic clump weight carries out trim, and pivoted arm side is arranged in away from rotation center 1735mm's in dynamic balance system clump weight
In pull strap, clump weight weight 300kg, away from moving between main-shaft core 1.8m~2.19m, maximum can match the imbalance of 78kN
Power.
It is above 1) in, the dynamic balance system of motor driven stem nut pair, feed screw nut pair requires that installation accuracy is high, assembly
It is complicated, higher to operating environment requirements；In addition need to guarantee the rigidity of screw rod, and motor nothing under high centrifugal field under centrifugal field
Method reliably working, cause the dynamic balance system trim range of feed screw nut pair form it is smaller, can only can under lower centrifugal field
By work.
It is above 2) in, the dynamic equilibrium trim repeatability of water drive dynamic formula is limited, the balance of finite number of time can only be carried out,
Need Clean water tank empty that can just continue trim after water tank is full, if carrying out multiple trim, operation is excessively complicated, leads to test efficiency
It is lower.
It is above 3) in, the dynamic balance system of hydraulic drive type, clump weight, execution unit, hydraulic cylinder are arranged at present
In the side of pivoted arm, it is affected to pivoted arm；Clump weight moving distance is shorter, causes control efficiency lower；In addition hydraulic pressure system
The hydraulic cylinder of system is under high centrifugal field, and failure risk is larger.
We has developed a kind of dynamic trimming system and has the centrifuge of dynamic trimming 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 dynamic trimming system and have dynamic match
The centrifuge of flat system.
The utility model achieves the above object through the following technical schemes:
Dynamic trimming system, comprising:
Identical first clump weight and the second clump weight, the first clump weight and the second clump weight are respectively placed in rotating device
The two sides of rotational axis line, and the first clump weight and the second clump weight are symmetrical with the rotational axis line of rotating device, first
Clump weight and the rigid connection of the second clump weight；
The first clump weight and the second clump weight are synchronized into the hydraulic pressure cylinder assembly pushed toward identical direction by the effect of power,
Pushing direction is vertical with the rotary centerline of rotating device, firmly effect output end and the first clump weight and the of hydraulic pressure cylinder assembly
The connection of two clump weights.
With two mass blocks usually, are moved, energy trim out-of-balance force is twice of mobile single mass, is expanded
The trim range of equilibrant force, while an equal amount of out-of-balance force is carried out with usually, the mobile distance of clump weight halves, significantly
Run duration is reduced, control efficiency is improved.
Specifically, hydraulic pressure cylinder assembly includes the first double acting hydraulic cylinder, the second double acting hydraulic cylinder, third double-action hydraulic
Cylinder, the 4th double acting hydraulic cylinder, the first double acting hydraulic cylinder, the second double acting hydraulic cylinder, third double acting hydraulic cylinder, the 4th pair
Acting cylinder is each attached on rotating device, the first end and third double-action hydraulic of the piston rod of the first double acting hydraulic cylinder
The first end of the piston rod of cylinder is coaxially connected, and the second end of the piston rod of the first double acting hydraulic cylinder is connect with the first clump weight,
The second end of the piston rod of third double acting hydraulic cylinder is connect with the second clump weight, and the of the piston rod of the second double acting hydraulic cylinder
One end and the first end of the piston rod of the 4th double acting hydraulic cylinder are coaxially connected, and the second of the piston rod of the second double acting hydraulic cylinder
End is connect with the first clump weight, and the second end of the piston rod of the 4th double acting hydraulic cylinder is connect with the second clump weight, the first double cropping
With hydraulic cylinder, the second double acting hydraulic cylinder, third double acting hydraulic cylinder, the 4th double acting hydraulic cylinder with the rotation axis of rotating device
Heart line is symmetrical.
Further, dynamic trimming system further includes connector, connector include with upper connector and lower connector, first pair
The first end of the piston rod of the first end and third double acting hydraulic cylinder of the piston rod of acting cylinder is that diameter is greater than middle-end
Cylindrical body boss structure, the groove of semi-cylindrical, upper connector and lower connection are provided in upper connector and lower connector
Full wrap is in the first end of the piston rod of the first double acting hydraulic cylinder and the piston rod of third double acting hydraulic cylinder after part combination
First end junction, upper connector and lower connector are connected by screw to；The first of the piston rod of second double acting hydraulic cylinder
The first end of end and the piston rod of the 4th double acting hydraulic cylinder is the cylindrical body boss structure that diameter is greater than middle-end, upper connector
With the first end and the 4th double acting hydraulic cylinder of piston rod of the wrap in the second double acting hydraulic cylinder complete after the combination of lower connector
Piston rod first end junction.
Piston rod gapless is connected, coupling stiffness is larger, and connector is held by the combination of upper connector and lower connector
Carry on a shoulder pole the centrifugal inertial force of clump weight, rather than screw undertakes the centrifugal inertial force of clump weight, makes to connect relatively reliable.
Further, dynamic trimming system further include the first proportioning valve, the second proportioning valve, third proportioning valve, the 4th proportioning valve,
First hydraulic lock, the second hydraulic lock, third hydraulic lock, the 4th hydraulic lock, the first pump, the first proportioning valve, the second proportioning valve, third
The first double acting hydraulic cylinder of control, the second double acting hydraulic cylinder, the third double cropping that proportioning valve, the 4th proportioning valve are corresponding in turn to
With hydraulic cylinder, the 4th double acting hydraulic cylinder, the first pump is for the first double acting hydraulic cylinder, the second double acting hydraulic cylinder, third pair
The fuel feeding of acting cylinder, the 4th double acting hydraulic cylinder realizes the first double acting hydraulic cylinder, the second double acting hydraulic cylinder, third
The reciprocating motion of double acting hydraulic cylinder, the 4th double acting hydraulic cylinder, the first hydraulic lock, the second hydraulic lock, third hydraulic lock, the 4th
Hydraulic lock be corresponding in turn to for locking the first double acting hydraulic cylinder, the second double acting hydraulic cylinder, third double acting hydraulic cylinder, the
The position of four double acting hydraulic cylinders.
It takes hydraulic-driven, hydraulic lock that can make trimming system quick response, reliably locks in predetermined position, make balance system
System is effectively reliable；Four hydraulic cylinders in pairs, are acted by two hydraulic cylinder synchronous in one group of proportional valve control, to guarantee
Clump weight can be moved along guide rail is smooth；Hydraulic cylinder piston rod on the same axis of difference group is fixed with one, and guarantees two groups
The synchronization action of hydraulic cylinder, with the synchronous driving clump weight of four hydraulic cylinder collaborations, it is easier to realize higher control precision.
Further, dynamic trimming system further includes the second pump, the piston of the first double acting hydraulic cylinder, the second double acting liquid
The piston of the piston of cylinder pressure, the piston of third double acting hydraulic cylinder and the 4th double acting hydraulic cylinder is provided with static pressure support knot
Structure, second pumps the quiet of the piston of the static pressure support construction, the second double acting hydraulic cylinder that are used for the piston of the first double acting hydraulic cylinder
Press support construction, third double acting hydraulic cylinder piston static pressure support construction and the 4th double acting hydraulic cylinder piston static pressure
Support construction fuel feeding.
Further, dynamic trimming system further includes four guide rail slide blocks of installation on the spinning device, the first clump weight
It is provided with the groove to match with guide rail slide block with the two sides of the second clump weight, the groove of the first clump weight two sides is covered at two
It is slided on guide rail slide block and along two guide rail slide blocks, the groove of the second clump weight two sides covers on two guide rail slide blocks and along two
Guide rail slide block sliding is parallel to each other with two guide rail slide blocks of the first clump weight cooperation, and four guide rail slide blocks are distinguished in pairs
It is symmetrical with the rotational axis line of rotating device.
The centrifuge for having dynamic trimming system, comprising:
Pivoted arm, the interior setting of pivoted arm are fluted；
The multiple positioning rings being fixed on pivoted arm；
Above-described dynamic trimming system, dynamic balance system are arranged symmetrically in the shaft two sides of centrifuge, move trimming system
It is mounted in the groove being arranged in pivoted arm, hydraulic pressure cylinder assembly is fixedly mounted on multiple positioning rings.
The shaft two sides that dynamic balance system is arranged symmetrically in centrifuge keep dynamic balance system relatively right in centrifugal field lower stress
Claim, is balanced, stress concentration is smaller, smaller to the external force of pivoted arm addition；The layout is smaller on pivoted arm influence, has saved table on pivoted arm
Space of planes facilitates installation of the other equipment on pivoted arm；Be arranged symmetrically make inertia of the dynamic balance system under centrifugal field itself from
Mental and physical efforts only need to break balance, clump weight is in centrifugal field when system needs movement to carry out matching flat in pivoted arm two sides relative equilibrium
Effect it is lower can automatic moving efficiently solve so that the driving force that dynamic balance system uses is smaller with the drive of small driving force
Dynamic motion problems of the clump weight under centrifugal field, while reducing the scale of hydraulic system, keep hydraulic system more succinct, and then improve
The reliability of system.
The utility model has the beneficial effects that:
The dynamic trimming system of the utility model and the centrifuge for having dynamic trimming system:
1, with two mass blocks usually, are moved, energy trim out-of-balance force is twice of mobile single mass, is expanded
The trim range of equilibrant force, while an equal amount of out-of-balance force is carried out with usually, the mobile distance of clump weight halves, greatly
Run duration is reduced greatly, improves control efficiency.
2, piston rod gapless is connected, coupling stiffness is larger, and connector is by the combination of upper connector and lower connector
Undertake the centrifugal inertial force of clump weight, rather than screw undertakes the centrifugal inertial force of clump weight, makes to connect relatively reliable.
3, it takes hydraulic-driven, hydraulic lock that can make trimming system quick response, reliably locks in predetermined position, make to balance
System is effectively reliable；Four hydraulic cylinders in pairs, are acted by two hydraulic cylinder synchronous in one group of proportional valve control, to protect
Card clump weight can be moved along guide rail is smooth；Hydraulic cylinder piston rod on the same axis of difference group is fixed with one, and guarantees two
The synchronization action of group hydraulic cylinder, with the synchronous driving clump weight of four hydraulic cylinder collaborations, it is easier to realize higher control precision.
4, the shaft two sides that dynamic balance system is arranged symmetrically in centrifuge keep dynamic balance system opposite in centrifugal field lower stress
Symmetrically, balanced, stress concentration is smaller, smaller to the external force of pivoted arm addition；The layout is smaller on pivoted arm influence, has saved on pivoted arm
Space surface facilitates installation of the other equipment on pivoted arm；It is arranged symmetrically the inertia for making dynamic balance system itself under centrifugal field
Centrifugal force only need to break balance, clump weight is in centrifugal field when system needs movement to carry out matching flat in pivoted arm two sides relative equilibrium
Under the action of can automatic moving efficiently solve so that the driving force that dynamic balance system uses is smaller with small driving force
Motion problems of the clump weight under centrifugal field are driven, while reducing the scale of hydraulic system, keep hydraulic system more succinct, Jin Erti
The high reliability of system.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for having the centrifuge of dynamic trimming system in the utility model；
Fig. 2 is the structural schematic diagram of transfer trimming system in the middle part of the utility model；
Fig. 3 is the hydraulic schematic diagram that trimming system is moved in the utility model；
Fig. 4 is the structural schematic diagram of connector in the utility model；
Fig. 5 is the connection the schematic diagram of the section structure of connector in the utility model.
In figure: 1, moving trimming system；11, the first double acting hydraulic cylinder；12, the second double acting hydraulic cylinder；13, third double cropping
Use hydraulic cylinder；14, the 4th double acting hydraulic cylinder；15, the first clump weight；16, the second clump weight；17, connector；171, upper connection
Part；172, lower connector；18, guide rail slide block；19, the first hydraulic lock；20, the second hydraulic lock；21, third hydraulic lock；22, the 4th
Hydraulic lock；23, the first proportioning valve；24, the second proportioning valve；25, third proportioning valve；26, the 4th proportioning valve；27, the first pump；28,
Second pump；2, positioning ring；3, pivoted arm.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
As shown in Fig. 2, dynamic trimming system 1, comprising:
Identical first clump weight 15 and the second clump weight 16, the first clump weight 15 and the second clump weight 16 are respectively placed in rotation
The two sides of the rotational axis line of rotary device, and the first clump weight 15 and the second clump weight 16 are with the rotational axis line pair of rotating device
Claim distribution, the first clump weight 15 and the rigid connection of the second clump weight 16；
By the effect of power by the first clump weight 15 and the second clump weight 16 toward the hydraulic cylinder of the synchronous promotion in identical direction
Component, pushing direction is vertical with the rotary centerline of rotating device, firmly effect output end and the first counterweight of hydraulic pressure cylinder assembly
Block 15 and the connection of the second clump weight 16.
With two mass blocks usually, are moved, energy trim out-of-balance force is twice of mobile single mass, is expanded
The trim range of equilibrant force, while an equal amount of out-of-balance force is carried out with usually, the mobile distance of clump weight halves, significantly
Run duration is reduced, control efficiency is improved.
Specifically, hydraulic pressure cylinder assembly includes the first double acting hydraulic cylinder 11, the second double acting hydraulic cylinder 12, third double acting
Hydraulic cylinder 13, the 4th double acting hydraulic cylinder 14, the first double acting hydraulic cylinder 11, the second double acting hydraulic cylinder 12, third double acting
Hydraulic cylinder 13, the 4th double acting hydraulic cylinder 14 are each attached on rotating device, and the of the piston rod of the first double acting hydraulic cylinder 11
One end and the first end of the piston rod of third double acting hydraulic cylinder 13 are coaxially connected, the piston rod of the first double acting hydraulic cylinder 11
Second end is connect with the first clump weight 15, and the second end of the piston rod of third double acting hydraulic cylinder 13 and the second clump weight 16 connect
It connects, the first end of the piston rod of the second double acting hydraulic cylinder 12 and the first end of the piston rod of the 4th double acting hydraulic cylinder 14 are coaxial
Connection, the second end of the piston rod of the second double acting hydraulic cylinder 12 are connect with the first clump weight 15, the 4th double acting hydraulic cylinder 14
The second end of piston rod connect with the second clump weight 16, the first double acting hydraulic cylinder 11, the second double acting hydraulic cylinder 12, third
Double acting hydraulic cylinder 13, the 4th double acting hydraulic cylinder 14 are symmetrical with the rotational axis line of rotating device.
As shown in Figure 4 and Figure 5, further, moving trimming system 1 further includes connector 17, and connector 17 includes and upper company
Fitting 171 and lower connector 172, first end and the third double acting hydraulic cylinder 13 of the piston rod of the first double acting hydraulic cylinder 11
The first end of piston rod is the cylindrical body boss structure that diameter is greater than middle-end, is all provided in upper connector 171 and lower connector 172
It is equipped with the groove of semi-cylindrical, full wrap is in the first double acting hydraulic cylinder 11 after upper connector 171 and the combination of lower connector 172
Piston rod first end and third double acting hydraulic cylinder 13 piston rod first end junction, upper connector 171 and lower company
Fitting 172 is connected by screw to；The first end of the piston rod of second double acting hydraulic cylinder 12 and the 4th double acting hydraulic cylinder 14
The first end of piston rod is the cylindrical body boss structure that diameter is greater than middle-end, after upper connector 171 and lower connector 172 combine
Full wrap in the first end of the piston rod of the second double acting hydraulic cylinder 12 and the piston rod of the 4th double acting hydraulic cylinder 14 the
One end junction.
Piston rod gapless is connected, coupling stiffness is larger, and connector 17 is by upper connector 171 and lower connector 172
Combination undertake the centrifugal inertial force of clump weight, rather than screw undertakes the centrifugal inertial force of clump weight, and connection is made more may be used
It leans on.
As shown in figure 3, further, moving trimming system 1 further includes the first proportioning valve 23, the second proportioning valve 24, third ratio
Example valve 25, the 4th proportioning valve 26, the first hydraulic lock 19, the second hydraulic lock 20, third hydraulic lock 21, the 4th hydraulic lock 22, first
Pump 27, the control that the first proportioning valve 23, the second proportioning valve 24, third proportioning valve 25, the 4th proportioning valve 26 are corresponding in turn to the
One double acting hydraulic cylinder 11, the second double acting hydraulic cylinder 12, third double acting hydraulic cylinder 13, the 4th double acting hydraulic cylinder 14, the
One pump 27 is used for the first double acting hydraulic cylinder 11, the second double acting hydraulic cylinder 12, third double acting hydraulic cylinder 13, the 4th double acting
The fuel feeding of hydraulic cylinder 14, realize the first double acting hydraulic cylinder 11, the second double acting hydraulic cylinder 12, third double acting hydraulic cylinder 13,
The reciprocating motion of 4th double acting hydraulic cylinder 14, the first hydraulic lock 19, the second hydraulic lock 20, third hydraulic lock the 21, the 4th are hydraulic
What lock 22 was corresponding in turn to is used to lock the first double acting hydraulic cylinder 11, the second double acting hydraulic cylinder 12, third double acting hydraulic cylinder
13, the position of the 4th double acting hydraulic cylinder 14.
It takes hydraulic-driven, hydraulic lock that can make 1 quick response of trimming system, reliably locks in predetermined position, make to balance
System is effectively reliable；Four hydraulic cylinders in pairs, are acted by two hydraulic cylinder synchronous in one group of proportional valve control, to protect
Card clump weight can be moved along guide rail is smooth；Hydraulic cylinder piston rod on the same axis of difference group is fixed with one, and guarantees two
The synchronization action of group hydraulic cylinder, with the synchronous driving clump weight of four hydraulic cylinder collaborations, it is easier to realize higher control precision.
Further, moving trimming system 1 further includes the second pump 28, the piston of the first double acting hydraulic cylinder 11, second pair
The piston of the piston of acting cylinder 12, the piston of third double acting hydraulic cylinder 13 and the 4th double acting hydraulic cylinder 14 is provided with
Static pressure support construction, the second pump 28 are used for the static pressure support construction of the piston of the first double acting hydraulic cylinder 11, the second double acting liquid
Static pressure support construction, the static pressure support construction of the piston of third double acting hydraulic cylinder 13 and the 4th double acting of the piston of cylinder pressure 12
The static pressure support construction fuel feeding of the piston of hydraulic cylinder 14.
Further, moving trimming system 1 further includes four guide rail slide blocks 18 of installation on the spinning device, the first counterweight
The two sides of block 15 and the second clump weight 16 are provided with the groove to match with guide rail slide block 18,15 two sides of the first clump weight it is recessed
Slot is covered on two guide rail slide blocks 18 and is slided along two guide rail slide blocks 18, and the groove of 16 two sides of the second clump weight is covered leads at two
It slides on rail sliding block 18 and along two guide rail slide blocks 18, is parallel to each other with two guide rail slide blocks 18 of the first clump weight 15 cooperation,
Four guide rail slide blocks 18 are symmetrical with the rotational axis line of rotating device respectively in pairs.
As shown in Figure 1, having the centrifuge of dynamic trimming system 1, comprising:
Pivoted arm 3, the interior setting of pivoted arm 3 are fluted；
The multiple positioning rings 2 being fixed on pivoted arm 3；
Above-described dynamic trimming system 1, dynamic balance system are arranged symmetrically in the shaft two sides of centrifuge, move trimming system
1 is mounted in the groove being arranged in pivoted arm 3, and hydraulic pressure cylinder assembly is fixedly mounted on multiple positioning rings 2.
The shaft two sides that dynamic balance system is arranged symmetrically in centrifuge keep dynamic balance system relatively right in centrifugal field lower stress
Claim, is balanced, stress concentration is smaller, and the external force added to pivoted arm 3 is smaller；The layout is smaller on the influence of pivoted arm 3, has saved pivoted arm 3
Upper surface space facilitates installation of the other equipment on pivoted arm 3；It is arranged symmetrically make dynamic balance system itself under centrifugal field used
Property centrifugal force in 3 two sides relative equilibrium of pivoted arm, when system need it is mobile carry out with it is flat when, need to only break balance, clump weight from
Under the action of psychological field can automatic moving efficiently solve so that the driving force that dynamic balance system uses is smaller with small drive
Motion problems of the power drive clump weight under centrifugal field, while reducing the scale of hydraulic system, keep hydraulic system more succinct, into
And improve the reliability of system.
Centrifuge is loaded and carries out dynamically balancing, that is, needs to move the out-of-balance force of corresponding quality bucking-out system.According to
3 structure type of pivoted arm, clump weight moving displacement and clump weight position, during trim, need to resist clump weight from from
Inertia force (centrifugal force) under psychological field.
Trim scheme are as follows: be arranged symmetrically two the first clump weights 15 and the second clump weight identical in quality in 3 two sides of pivoted arm
16.Original state centrifuge balance, 15 mass center of the first clump weight and 16 mass center of the second clump weight away from shaft apart from identical, due to two
Clump weight is rigid connection, and the centrifugal force of two clump weights is cancelled out each other, and the first clump weight 15 and the second clump weight 16 are at this time
Equilibrium state；When centrifuge needs to match flat, only minimum driving force is needed to break the balance of two clump weights, two clump weights are in two sides
The trim to centrifuge can be realized in automatic moving to designated position under the driving of centrifugal force difference.Later, it is mentioned to two clump weights
For opposite force, i.e. lockable clump weight position, the size of opposite force is identical as the out-of-balance force of required trim.
Dynamic trimming system 1 uses hydraulic-driven in the mobile of centrifugal field: two double acting hydraulic cylinders of each clump weight drive
Dynamic, the piston rod of the double acting hydraulic cylinder of the different clump weights of driving on same axis is linked together with rigid structure, and four
Double acting hydraulic cylinder is individually controlled with four proportioning valves respectively.Its hydraulic principle is as shown in Figure 3.
The plunger designs of double acting hydraulic cylinder have static pressure support, it is ensured that hydraulic cylinder can be effectively worked in centrifugal field；Than
Example valve Median Function is O-shaped.First pump 27 is multiple double-action hydraulic oil supply cylinders, realizes that double acting hydraulic cylinder moves back and forth, the
Two pumps 28 support fuel feeding for the piston static pressure of double acting hydraulic cylinder.First proportioning valve 23 and the second proportioning valve 24 cooperate, really
Protect moving synchronously for the first double acting hydraulic cylinder 11 and the second double acting hydraulic cylinder 12.Third proportioning valve 25 and the 4th proportioning valve 26
It cooperates, it is ensured that third double acting hydraulic cylinder 13 and the 4th double acting hydraulic cylinder 14 move synchronously.Each hydraulic cylinder configures liquid
Pressure lock, to lock Position of Hydraulic Cylinder.The piston rod of second double acting hydraulic cylinder 12 and the piston rod of third double acting hydraulic cylinder 13
It is connected by rigid structure, the piston rod of the first double acting hydraulic cylinder 11 and the piston rod of the 4th double acting hydraulic cylinder 14 pass through just
Property structure be connected.First double acting hydraulic cylinder 11 and the second double acting hydraulic cylinder 12 are mounted on shaft the same side, third double acting
Hydraulic cylinder 13 and the 4th double acting hydraulic cylinder 14 are mounted on the shaft other side.When needing two mass blocks to be moved to the left: opening
Second pump 28 and the first pump 27, control the first proportioning valve 23 and the second proportioning valve 24, third proportioning valve 25 and the 4th proportioning valve 26,
Make the piston rod of the first double acting hydraulic cylinder 11 and the piston rod and third double acting hydraulic cylinder 13 of the second double acting hydraulic cylinder 12
Piston rod and the piston rod of the 4th double acting hydraulic cylinder 14 synchronize and move downward, and then it is specified to push two mass blocks to move to
Position.After trim, the spool of each proportioning valve is in an intermediate position, and each hydraulic lock is locked in corresponding double acting hydraulic cylinder
Designated position.Two mass blocks are similar when each proportioning valve, double acting hydraulic cylinder movement are moved to the left with mass block when moving right.
Two clump weights move under the driving of double acting hydraulic cylinder along guide rail slide block 18, not for real-time trimming system
Equilibrant force；It is connected through a screw thread between the piston rod and clump weight of double acting hydraulic cylinder, it is ensured that connection rigidity and clump weight exist
Sports safety under centrifugal field；Hydraulic cylinder is fixed on positioning ring 2 by the flange on cylinder body.
Layout of the dynamic balance system on pivoted arm 3 is as shown in Figure 1.Dynamic balance system is arranged symmetrically in shaft two sides, entirely
System is mounted on inside pivoted arm 3, and hydraulic cylinder piston rod and clump weight are rigidly connected, and cylinder body is mounted on positioning ring 2, clump weight edge
The guide rail being mounted on pivoted arm 3 is mobile, and guide rail also undertakes the gravity of clump weight other than guiding role.The layout is to 3 shadow of pivoted arm
Sound is smaller, has saved 3 upper surface space of pivoted arm, has facilitated installation of the other equipment on pivoted arm 3；Being arranged symmetrically makes dynamic balance system
Balanced in centrifugal field lower stress relative symmetry, stress concentration is smaller, and the external force added to pivoted arm 3 is smaller；In addition being arranged symmetrically makes
The driving force of dynamic balance system is smaller, reduces the scale of hydraulic system, keeps hydraulic system more succinct, so improve system can
By property.
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 (7)
1. dynamic trimming system characterized by comprising
Identical first clump weight and the second clump weight, the first clump weight and the second clump weight are respectively placed in the rotation of rotating device
The two sides of axial line, and the first clump weight and the second clump weight are symmetrical with the rotational axis line of rotating device, the first counterweight
Block and the rigid connection of the second clump weight；
The first clump weight and the second clump weight are pushed toward the synchronous hydraulic pressure cylinder assembly pushed in identical direction by the effect of power
Direction is vertical with the rotary centerline of rotating device, and the firmly effect output end of hydraulic pressure cylinder assembly is matched with the first clump weight and second
Pouring weight connection.
2. dynamic trimming system according to claim 1, it is characterised in that: hydraulic pressure cylinder assembly includes the first double-action hydraulic
Cylinder, the second double acting hydraulic cylinder, third double acting hydraulic cylinder, the 4th double acting hydraulic cylinder, the first double acting hydraulic cylinder, second pair
Acting cylinder, third double acting hydraulic cylinder, the 4th double acting hydraulic cylinder are each attached on rotating device, the first double-action hydraulic
The first end of the piston rod of cylinder and the first end of the piston rod of third double acting hydraulic cylinder are coaxially connected, the first double acting hydraulic cylinder
The second end of piston rod connect with the first clump weight, the second end of the piston rod of third double acting hydraulic cylinder and the second clump weight
Connection, the first end of the piston rod of the second double acting hydraulic cylinder and the first end of the piston rod of the 4th double acting hydraulic cylinder coaxially connect
It connects, the second end of the piston rod of the second double acting hydraulic cylinder is connect with the first clump weight, the piston rod of the 4th double acting hydraulic cylinder
Second end connect with the second clump weight, the first double acting hydraulic cylinder, the second double acting hydraulic cylinder, third double acting hydraulic cylinder,
4th double acting hydraulic cylinder is symmetrical with the rotational axis line of rotating device.
3. dynamic trimming system according to claim 2, it is characterised in that: dynamic trimming system further includes connector, connector
Including with upper connector and lower connector, the first end of the piston rod of the first double acting hydraulic cylinder and third double acting hydraulic cylinder
The first end of piston rod is the cylindrical body boss structure that diameter is greater than middle-end, and half is provided in upper connector and lower connector
After columned groove, upper connector and the combination of lower connector full wrap the first double acting hydraulic cylinder piston rod first
The first end junction at end and the piston rod of third double acting hydraulic cylinder, upper connector and lower connector are connected by screw to；The
The first end of the piston rod of two double acting hydraulic cylinders and the first end of the piston rod of the 4th double acting hydraulic cylinder are that diameter is greater than
Piston of the full wrap in the second double acting hydraulic cylinder after the cylindrical body boss structure of middle-end, upper connector and the combination of lower connector
The first end junction of the piston rod of the first end of bar and the 4th double acting hydraulic cylinder.
4. dynamic trimming system according to claim 2, it is characterised in that: dynamic trimming system further includes the first proportioning valve,
Two proportioning valves, third proportioning valve, the 4th proportioning valve, the first hydraulic lock, the second hydraulic lock, third hydraulic lock, the 4th hydraulic lock,
One pump, the first double acting of control that the first proportioning valve, the second proportioning valve, third proportioning valve, the 4th proportioning valve are corresponding in turn to
Hydraulic cylinder, the second double acting hydraulic cylinder, third double acting hydraulic cylinder, the 4th double acting hydraulic cylinder, the first pump are used for the first double cropping
With hydraulic cylinder, the second double acting hydraulic cylinder, third double acting hydraulic cylinder, the 4th double acting hydraulic cylinder fuel feeding, realize first pair
The reciprocating motion of acting cylinder, the second double acting hydraulic cylinder, third double acting hydraulic cylinder, the 4th double acting hydraulic cylinder, first
Hydraulic lock, the second hydraulic lock, third hydraulic lock, the 4th hydraulic lock be corresponding in turn to for locking the first double acting hydraulic cylinder, the
The position of two double acting hydraulic cylinders, third double acting hydraulic cylinder, the 4th double acting hydraulic cylinder.
5. dynamic trimming system according to claim 2, it is characterised in that: dynamic trimming system further includes the second pump, and first pair
The piston of acting cylinder, the piston of the second double acting hydraulic cylinder, the piston of third double acting hydraulic cylinder and the 4th double acting liquid
The piston of cylinder pressure is provided with static pressure support construction, and static pressure of second pump for the piston of the first double acting hydraulic cylinder supports knot
Structure, the static pressure support construction of the piston of the second double acting hydraulic cylinder, third double acting hydraulic cylinder piston static pressure support construction
With the static pressure support construction fuel feeding of the piston of the 4th double acting hydraulic cylinder.
6. dynamic trimming system according to claim 1 or 2, it is characterised in that: dynamic trimming system further includes being mounted on rotation
The two sides of four guide rail slide blocks on device, the first clump weight and the second clump weight be provided with match with guide rail slide block it is recessed
Slot, the groove of the first clump weight two sides are covered on two guide rail slide blocks and are slided along two guide rail slide blocks, the second clump weight two sides
Groove cover on two guide rail slide blocks and slided along two guide rail slide blocks, two guide rail slide block phases with the cooperation of the first clump weight
Mutually parallel, four guide rail slide blocks are symmetrical with the rotational axis line of rotating device respectively in pairs.
7. the centrifuge for having dynamic trimming system characterized by comprising
Pivoted arm, the interior setting of pivoted arm are fluted；
The multiple positioning rings being fixed on pivoted arm；
Dynamic trimming system described in any one of claims 1-6, dynamic balance system are arranged symmetrically in the shaft two sides of centrifuge, move
Trimming system is mounted in the groove being arranged in pivoted arm, and hydraulic pressure cylinder assembly is fixedly mounted on multiple positioning rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820881769.2U CN208373352U (en) | 2018-06-07 | 2018-06-07 | Dynamic trimming system and the centrifuge for having dynamic trimming system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820881769.2U CN208373352U (en) | 2018-06-07 | 2018-06-07 | Dynamic trimming system and the centrifuge for having dynamic trimming system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208373352U true CN208373352U (en) | 2019-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820881769.2U Withdrawn - After Issue CN208373352U (en) | 2018-06-07 | 2018-06-07 | Dynamic trimming system and the centrifuge for having dynamic trimming system |
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| Country | Link |
|---|---|
| CN (1) | CN208373352U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108480065A (en) * | 2018-06-07 | 2018-09-04 | 中国工程物理研究院总体工程研究所 | Dynamic trimming system and the centrifuge for having dynamic trimming system |
-
2018
- 2018-06-07 CN CN201820881769.2U patent/CN208373352U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108480065A (en) * | 2018-06-07 | 2018-09-04 | 中国工程物理研究院总体工程研究所 | Dynamic trimming system and the centrifuge for having dynamic trimming system |
| CN108480065B (en) * | 2018-06-07 | 2024-01-30 | 中国工程物理研究院总体工程研究所 | Dynamic balancing system and centrifugal machine with dynamic balancing system |
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