CN110144831A - A kind of rotating method for the swivel structure of continuous beam and for controlling swivel - Google Patents
A kind of rotating method for the swivel structure of continuous beam and for controlling swivel Download PDFInfo
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- CN110144831A CN110144831A CN201910481086.7A CN201910481086A CN110144831A CN 110144831 A CN110144831 A CN 110144831A CN 201910481086 A CN201910481086 A CN 201910481086A CN 110144831 A CN110144831 A CN 110144831A
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- rotary table
- damping
- circular slab
- top rotary
- torque
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/08—Methods or apparatus specially adapted for erecting or assembling bridges by rotational movement of the bridge or bridge sections
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Abstract
A kind of rotating method the invention discloses swivel structure for continuous beam and for controlling swivel, including top rotary table, lower rotary table and trailer system, the top rotary table rotational installation is in the upper surface of described lower rotary table, the output end of the trailer system is connect by hauling rope with the top rotary table, for driving top rotary table to rotate；It further include the equalising torque case for being installed on the lower rotary table, the circumferential side wall of the top rotary table is equipped with a circle gear teeth, and the input shaft of the equalising torque case is equipped with gear, is rotatablely connected the input shaft and turntable by gear and gear teeth meshing；The inside of the equalising torque case is equipped with damping mechanism, and the damping mechanism and the input shaft are sequentially connected, and applies resistance for the rotation direction in top rotary table.The present invention improves the stationarity of beam body during rotation, eliminates safe hidden trouble, and improves the security level of construction.
Description
Technical field
The present invention relates to continuous beam technical fields, and in particular to a kind of for the swivel structure of continuous beam and for controlling
The rotating method of swivel.
Background technique
In the engineerings such as building, bridge, aviation and pipe-line, a kind of beam is commonly encountered with three or more branch
It holds, referred to as continuous beam.
The pier body of continuous beam generallys use pier top rotator construction, and rotor system core component is arranged in the pier top of pier body.And
Swivel structure is made of lower rotary table, flexural pivot, top rotary table, swivel trailer system.Lower rotary table is support swivel structure total weight
Basis, lower rotary table main member include lower flexural pivot and its skeleton, glide path and its skeleton, centralized positioning axis, jack counter-force seat.
Top rotary table main member includes upper flexural pivot and its skeleton (containing steel pile casting), support foot.Drawing Force system mainly includes tractive force counter-force
Seat, hauling rope and the driver for pulling hauling rope.Important feature when top rotary table is swivel, and be that swivel is directly applied when drawing
Add the position of tractive force.It is a multidirectional, three-dimensional stress during entire swivel, stress is complicated.At top rotary table bottom
Plate, according to the pre-buried support foot pre-embedded steel slab of design position, support pre-embedded steel slab and swivel hauling rope etc..Wherein hauling rope is equipped with two
Item, circumferential side wall of two hauling rope reverse-windings in top rotary table, and two of the tangential direction by being fixed on turntable drivings
Device pulls, to realize the rotation of the beam body on top rotary table and turntable.
In the actual operation process, beam body is to one-directionally rotate clockwise or counter-clockwise, and due to its direction, rotation direction does not have
There is a setting resistance, this rotation is easy the interference by extraneous factor and active rotation and the slight oscillatory of beam body occurs, such as
It will receive the influence of wind-force.And beam body keeps the rotation of beam body and top rotary table unstable after there is actively rotation and slight swing,
Not at the uniform velocity, it is possible that rotating unbalance initiation accident, there are biggish security risks for rotation.
Summary of the invention
For the defects in the prior art, the present invention provides a kind of swivel structure for continuous beam, is existed with improving beam body
Stationarity in rotation process, eliminates safe hidden trouble, and improves the security level of construction.
It is described the present invention provides a kind of swivel structure for continuous beam, including top rotary table, lower rotary table and trailer system
Top rotary table rotational installation is connected in the upper surface of described lower rotary table, the output end of the trailer system by hauling rope and the top rotary table
It connects, for driving top rotary table to rotate；
It further include the equalising torque case for being installed on the lower rotary table, the circumferential side wall of the top rotary table is equipped with a circle gear teeth,
The input shaft of the equalising torque case is equipped with gear, rotates the input shaft and turntable by gear and gear teeth meshing and connects
It connects；
The inside of the equalising torque case is equipped with damping mechanism, and the damping mechanism and the input shaft are sequentially connected, use
Apply resistance in the rotation direction in top rotary table.
This equipment applies resistance in the rotation direction of top rotary table by the damping mechanism inside equalising torque case, the resistance
Less than the tractive force of trailer system, excessive load will not be increased to trailer system.The resultant force that top rotary table is subject to is still toward direction
Rotation direction, but due to the presence of resistance, on the one hand can control the revolving speed of top rotary table, avoid beam body unidirectional in trailer system
Revolving speed is too fast in the case of force；Still further aspect avoids extraneous factor and slight oscillatory occurs to the interference of beam body, makes entire
Rotation process is in steady state always, eliminates safe hidden trouble.
Preferably, the circumferential side wall of the lower rotary table is equipped with the bearing block being rotatablely connected with the input shaft.
Bearing block is radially fixed to input shaft progress, avoids input shaft from radially bending occur in rotation process, influences to rotate.
Preferably, the equalising torque case is equipped with multiple, and multiple equalising torque casees are uniform along the circumferential side wall of lower rotary table
Distribution.
The size specification of the swivel of different continuous beams is different, and it is also different to rotate tractive force required for beam body, and torque is flat
The maximum resistance of weighing apparatus case is certain, therefore the number that setting equalising torque case balances according to the actual situation, to adapt to different rule
The swivel of lattice.
Preferably, the equalising torque case includes cabinet and is installed on the speed increasing mechanism of box house, crank connecting link machine
Structure, piston body and damping mechanism, and speed increasing mechanism, crank link mechanism, piston body and damping mechanism are equipped with shell；
The speed increasing mechanism transmission connection is between the input shaft and crank link mechanism, for reducing the torsion of input shaft
Square；
The crank link mechanism transmission connection is between the speed increasing mechanism and piston body, for turning speed increasing mechanism
Dynamic conversion of motion is linear reciprocating motion, and the second piston chamber of the first piston chamber of crank link mechanism and piston body connects
Logical, the cavity of connected component is full of hydraulic oil；
The second piston bar of the piston body and the damping mechanism are sequentially connected, living by damping mechanism control second
The resistance that stopper rod is subject to is to control the resistance that input shaft is subject to.
The inside of speed increasing mechanism is equipped with a pair of of speed increasing gear group, and torque when due to top rotary table rotation is big, passes through booster engine
Structure reduces the torque for being transferred to crank link mechanism.And crank link mechanism is that torque is converted to linear reciprocating motion, with adaptation
The linear reciprocating motion of damping mechanism.In addition, the first piston chamber of crank link mechanism is connected to the second piston chamber of piston body,
And the cross section of first piston chamber is twice of the cross section of second piston chamber, further reduces and is transferred to damping mechanism
Thrust.The reduction of two sections of torque is arranged in equalising torque case, reduces the load of damping mechanism, while being also exaggerated the resistance of damping mechanism
Power, the pulling force for applying suitable resistance for top rotary table to be adapted to trailer system.
Preferably, the damping mechanism includes third plunger shaft, third piston, third piston rod and back cavity；Described
Three piston rods are fixedly connected with the second piston bar and the two synchronizing moving, and the both ends of the back cavity are living with third respectively
The both ends for filling in chamber correspond connection, and then third plunger shaft is made to form the cavity being connected to back cavity；
The inside of the back cavity is equipped with the damping sheet with damping hole, drives third piston the by third piston rod
The other side slided in three plunger shafts and then the hydraulic oil of damping sheet side is made to enter damping sheet by damping hole.
Third piston slides in third plunger shaft and will squeeze hydraulic oil and from damping sheet side enter damping by damping hole
The other side of plate, due to the flow that limits of damping hole, thus the sliding of third piston is obstructed and to form damped motion, the damping
Movement has effectively absorbed the rotation fluctuation that top rotary table occurs during rotation, makes beam body stability of rotation.
Preferably, the damping sheet includes the first circular slab and the second circular slab, first circular slab and the second circle
Plate is overlapped and the two coaxially relatively rotates；
The axial direction of first circular slab and the second circular slab is distributed multiple damping holes, and the damping of the first circular slab
The overlapping of the damping hole of hole and the second circular slab；
The back cavity is radially provided with annular mounting groove, and the edge seal of first circular slab is fixed on mounting groove
In, second circular slab rotational installation in mounting groove, by rotate the second circular slab make the damping hole of the second circular slab with
The damping hole of first circular slab misplaces, and then changes the flow for flowing through damping hole.
By changing the size of each damping hole, and then change the flow for flowing through damping hole, has finally played and turned in adjusting
The resistance that disk is subject to carries out the adjusting of resistance according to the actual conditions of turntable rotation, is more advantageous to and controls to top rotary table revolving speed
System.
Preferably, the damping mechanism further includes damper regulation mechanism, the damper regulation mechanism include worm screw, turbine and
Servo motor；The turbine is coaxially fixed with second circular slab, and the worm screw engages with turbine, and the rotation axis of worm screw
Side wall through back cavity is connect with the servo motor transmission for the outer surface for being fixed on back cavity side wall, passes through servo motor
Drive the rotation of the second circular slab to change the flow for flowing through damping hole.
Worm screw worm gear pair has the function of that direction is self-locking, i.e., the second circular slab can only be driven to rotate by servo motor, and the
Two circular slabs cannot drive servo motor to rotate, thus improve the precision for adjusting damping hole.
Preferably, the third piston rod that the damping mechanism is equipped with multiple and each damping mechanism is lived with described second
Stopper rod is fixedly connected and synchronizing moving.
Multiple damping mechanisms are used to improve the maximum resistance value of single damping mechanism.
It preferably, further include controller, display and torque sensor, the torque sensor is installed on the input shaft
On for detecting the torque of input shaft；The controller is electrically connected with the torque sensor and with servo motor respectively.
Controller selects PLC controller or singlechip controller, and for controller mature under industrial environment, operation is steady
It is fixed reliable.Controller is used to control the rotation of servo motor, and converting display for the data that torque sensor transmits can
Received electric signal, is finally shown by display, is checked convenient for operator.
The present invention also provides a kind of for controlling the rotating method of swivel, comprising the following steps:
Step 1: controller makes the damping hole and first of the second circular slab by servo motor drive the second circular slab rotation
The damping hole of circular slab is overlapped；
Step 2: top rotary table rotates under the traction of trailer system, and controller detects input shaft by torque sensor
Torque, and display shows the torque value of torque；
Step 3: whether observation top rotary table is in uniform rotation；
Step 4: if top rotary table uniform rotation, the second circular slab is not rotated；If top rotary table rotation is too fast, control
Device processed drives the rotation of the second circular slab to make the damping hole of the second circular slab and the damping hole mistake of the first circular slab by servo motor
Until top rotary table uniform rotation, while torque value is observed to increase the resistance that top rotary table is subject to, must not exceed damping mechanism and set in position
Fixed maximum torque.
This method has broken current conventional swivel mode, makes top rotary table rotating manner by one-way force applying, changes into two-way
Force adjusts the rotation feelings of top rotary table according to rotation situation eventually by the traction top rotary table rotation of the resultant force of tractive force and resistance
Condition avoids the occurrence of the unbalance initiation accident of rotation, eliminates safe hidden trouble to reach the more stable state of rotation.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar element
Or part is generally identified by similar appended drawing reference.In attached drawing, each element or part might not be drawn according to actual ratio.
Fig. 1 is the structural schematic diagram of the present embodiment；
Fig. 2 is the perspective view of Fig. 1；
Fig. 3 is the schematic diagram of internal structure of equalising torque case in the present embodiment；
Fig. 4 is the enlarged drawing in Fig. 3 at A；
Fig. 5 is the structural schematic diagram of damping sheet in the present embodiment；
Fig. 6 is the structural schematic diagram in Fig. 5 after the dislocation of the damping hole of the damping hole of the first circular slab and the second circular slab；
Fig. 7 is the structural schematic diagram of three damping mechanisms of setting in the present embodiment raising middle flask body.
In attached drawing, top rotary table 1, lower rotary table 2, trailer system 3, equalising torque case 4, the gear teeth 5, gear 6, input shaft 7, bearing
Seat 8, speed increasing mechanism 9, crank link mechanism 10, piston body 11, damping mechanism 12, shell 13, first piston chamber 14, first piston
Bar 15, first piston 16, second piston chamber 17, second piston bar 18, second piston 19, third plunger shaft 20, third piston rod
21, third piston 22, back cavity 23, damping sheet 24, damping hole 25, the first circular slab 26, the second circular slab 27, mounting groove 28,
Worm screw 29, turbine 30, servo motor 31, damper regulation mechanism 32, torque sensor 33, cabinet 34, crank 35.
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solution of the present invention.Following embodiment is only used for
Clearly illustrate technical solution of the present invention, therefore be only used as example, and cannot be used as a limitation and limit protection model of the invention
It encloses.
It should be noted that unless otherwise indicated, technical term or scientific term used in this application should be this hair
The ordinary meaning that bright one of ordinary skill in the art are understood.
Embodiment one:
As depicted in figs. 1 and 2, present embodiments provide a kind of swivel structure for continuous beam, including top rotary table 1, under
Turntable 2 and trailer system 3, the rotational installation of top rotary table 1 is in the upper surface of described lower rotary table 2, the output end of the trailer system 3
It is connect by hauling rope with the top rotary table 1, for driving top rotary table 1 to rotate.Since 1 single load bearing of top rotary table rotates, a side
Face can not effectively control its revolving speed under the action of inertia force；Still further aspect due to extraneous factor interference and beam body occurs
Active rotation and slight oscillatory, for example will receive the influence of wind-force, it is even more impossible to control for the rotation of top rotary table 1 in this case.
In order to avoid above situation, the present embodiment further includes the equalising torque case 4 for being installed on the lower rotary table 2, it is described on
The circumferential side wall of turntable 1 is equipped with a circle gear teeth 5, and the input shaft 7 of the equalising torque case 4 is equipped with gear 6, passes through gear 6 and wheel
Tooth 5 engages and then is rotatablely connected the input shaft 7 with turntable.The inside of the equalising torque case 4 is equipped with damping mechanism 12, institute
It states damping mechanism 12 and the input shaft 7 is sequentially connected, apply resistance for the rotation direction in top rotary table 1.Equalising torque case 4
Cabinet 34 circumferential side wall of lower rotary table 2 is fixed on by fasteners such as expansion bolts.The size of the swivel of different continuous beams is advised
Lattice are different, and it is also different to rotate tractive force required for beam body, and the maximum resistance of equalising torque case 4 is certain, therefore basis
Multiple equalising torque casees 4 can be set in actual conditions, and multiple equalising torque casees 4 are uniformly distributed along the circumferential side wall of lower rotary table 2,
The drag uniform for being subject to top rotary table 1.The number that the balance of equalising torque case 4 is arranged is selected according to the actual situation, each torque
4 independent operating of tandem-driving bogie, is independent of each other.The present embodiment is for being arranged two equalising torque casees 4.
Since input shaft 7 is longer, radially bending is avoided the occurrence of, the circumferential side wall of the lower rotary table 2 is equipped with and the input
The bearing block 8 that axis 7 is rotatablely connected.Bearing block 8 carries out input shaft 7 radially fixed, and input shaft 7 is avoided diameter occur in rotation process
To bending, influence to rotate.
The specific structure of equalising torque case 4 is as follows in the present embodiment:
As shown in Figure 3 and Figure 4, equalising torque case 4 include cabinet 34 and be installed on inside cabinet 34 speed increasing mechanism 9,
Crank link mechanism 10, piston body 11 and damping mechanism 12, and speed increasing mechanism 9, crank link mechanism 10, piston body 11 and resistance
Buddhist nun mechanism 12 is equipped with shell 13.
Wherein the transmission connection of speed increasing mechanism 9 is defeated for reducing between the input shaft 7 and crank link mechanism 10
Enter the torque of axis 7.The inside of speed increasing mechanism 9 is equipped with a pair of of 6 groups of speed increasing gear, and torque when being rotated due to top rotary table 1 is big, passes through
Speed increasing mechanism 9 reduces the torque for being transferred to crank link mechanism 10.
The transmission connection of crank link mechanism 10 is used between the speed increasing mechanism 9 and piston body 11 by booster engine
The rotational motion of structure 9 is converted into linear reciprocating motion.Crank link mechanism 10 includes crank, First piston bar 15 and first piston
16, the output end of speed increasing mechanism 9 is connect with crank 35, and First piston bar 15 is connected between crank 35 and first piston 16.It is bent
The first piston chamber 14 of handle link mechanism 10 is connected to the second piston chamber 17 of piston body 11, and the cavity of connected component is full of hydraulic
Oil.Crank link mechanism 10 is that torque is converted linear reciprocating motion, to be adapted to the linear reciprocating motion of damping mechanism 12.
Piston body 11 includes second piston 19 and second piston bar 18, the second piston bar 18 of the piston body 11 and institute
The transmission connection of damping mechanism 12 is stated, the first piston chamber 14 of crank link mechanism 10 and the second piston chamber 17 of piston body 11 connect
It is logical, and the cross section of first piston chamber 14 is twice of the cross section of second piston chamber 17, further reduces and is transferred to resistance
The thrust of Buddhist nun mechanism 12.The reduction of two sections of torque is arranged in equalising torque case 4, reduces the load of damping mechanism 12, while also amplifying
The resistance of damping mechanism 12, the pulling force for applying suitable resistance for top rotary table 1 to be adapted to trailer system 3.
The damping mechanism 12 includes third plunger shaft 20, third piston rod 21, third piston 22 and back cavity 23；It is described
Third piston rod 21 is fixedly connected with the second piston bar 18 and the two synchronizing moving, the both ends difference of the back cavity 23
It corresponds and is connected to the both ends of third plunger shaft 20, and then third plunger shaft 20 is made to form the cavity being connected to back cavity 23；
The inside of the back cavity 23 is equipped with the damping sheet 24 with damping hole 25, drives third piston 22 to exist by third piston rod 21
It is slided in third plunger shaft 20 and then the hydraulic oil of 24 side of damping sheet is made to enter other the one of damping sheet 24 by damping hole 25
Side.Third piston 22, which slides from 24 side of damping sheet to enter extruding hydraulic oil by damping hole 25 in third plunger shaft 20, to be hindered
The other side of Buddhist nun's plate 24, due to the flow that limits of damping hole 25, thus the sliding of third piston is obstructed and to form damped motion,
The damped motion has effectively absorbed the rotation fluctuation that top rotary table 1 occurs during rotation, makes beam body stability of rotation.
The resistance of damping mechanism 12 can be by being adjusted with flowering structure:
The damping sheet 24 includes the first circular slab 26 and the second circular slab 27, and first circular slab 26 and second is round
Plate 27 is overlapped and the two coaxially relatively rotates.As shown in Figure 5 and Figure 6, first circular slab 26 and the second circular slab 27
It is axial to be distributed multiple damping holes 25, and 25 weight of damping hole of the damping hole 25 of the first circular slab 26 and the second circular slab 27
It is folded.The back cavity 23 is radially provided with annular mounting groove 28, and the edge seal of first circular slab 26 is fixed on mounting groove
In 28, the rotational installation of the second circular slab 27 makes the second circular slab 27 in mounting groove 28, by rotating the second circular slab 27
Damping hole 25 and the damping hole 25 of the first circular slab 26 misplace, and then change and flow through the flow of damping hole 25.
The damping mechanism 12 further includes damper regulation mechanism 32, and the damper regulation mechanism 32 includes worm screw 29, turbine
30 and servo motor 31.The turbine 30 is coaxial fixed with second circular slab 27, and the worm screw 29 engages with turbine 30, and
And the rotation axis of worm screw 29 is through the side wall and the servo motor for the outer surface for being fixed on 23 side wall of back cavity of back cavity 23
31 transmission connections drive the rotation of the second circular slab 27 to change the flow for flowing through damping hole 25 by servo motor 31.Finally
It plays and adjusts the resistance that top rotary table 1 is subject to, the adjusting of resistance is carried out according to the actual conditions of turntable rotation, is more advantageous to upper
1 revolving speed of turntable is controlled.Wherein worm screw worm gear pair has the function of that direction is self-locking, i.e., can only drive second by servo motor 31
Circular slab 27 rotates, and the second circular slab 27 cannot drive servo motor 31 to rotate, thus improves the essence for adjusting damping hole 25
Degree.
Tractive force required for large-scale beam body is larger, in addition to multiple equalising torque casees 4 can be arranged to increase resistance
It, can also be by improving the maximum resistance value of single equalising torque case 4 with flowering structure outside mode:
Damping mechanism 12 be equipped with multiple and each damping mechanism 12 third piston rod 21 with the second piston bar
18 are fixedly connected and synchronizing moving.As shown in fig. 7, multiple damping mechanisms 12 are used to improve the maximum resistance of single damping mechanism 12
Force value, the resistance since speed increasing mechanism 9, crank link mechanism 10 and piston body 11 are there are upper intensity limit, in single equalising torque case 4
The quantity of Buddhist nun mechanism 12 not super more three, to guarantee the normal operation of other mechanisms.
The tractive force that operator will do it trailer system 3 before construction calculates and the resistance gauge of equalising torque case 4
It calculates, resistance will be less than the tractive force of trailer system 3, will not increase excessive load to trailer system 3, but resistance is also enough gram
Take the influence caused by beam body of the external factor such as wind-force.For the resistance of Torque-adjusting tandem-driving bogie 4 according to the actual situation, this implementation
Example further includes controller, display and torque sensor 33, and the torque sensor 33 is installed on the input shaft 7 for examining
Survey the torque of input shaft 7；The controller is electrically connected with the torque sensor 33 and with servo motor 31 respectively.Controller choosing
PLC controller or singlechip controller are selected, for controller mature under industrial environment, stable and reliable operation.Controller is used
The receivable telecommunications of display is converted into the rotation of control servo motor 31, and by the data that torque sensor 33 transmits
Number, it is finally shown by display, is checked convenient for operator.This equipment passes through the damping mechanism inside equalising torque case 4
12 apply resistance in the rotation direction of top rotary table 1, which is less than the tractive force of trailer system 3, will not increase to trailer system 3
Add excessive load.The resultant force that top rotary table 1 is subject to, due to the presence of resistance, on the one hand may be used still toward direction rotation direction
To control the revolving speed of top rotary table 1, avoid beam body revolving speed in 3 one-way force applying of trailer system too fast；Still further aspect avoids
There is slight oscillatory to the interference of beam body in extraneous factor, so that entire rotation process is in steady state always, eliminates safety
Hidden danger.
Embodiment two:
Present embodiments provide it is a kind of for control swivel rotating method, applied to embodiment one provide one kind be used for
The swivel structure of continuous beam, comprising the following steps:
Step 1: controller makes the damping hole and first of the second circular slab by servo motor drive the second circular slab rotation
The damping hole of circular slab is overlapped；Step 2: top rotary table rotates under the traction of trailer system, and controller is examined by torque sensor
The torque of input shaft is surveyed, and display shows the torque value of torque；Step 3: whether observation top rotary table, which is in, at the uniform velocity turns
It is dynamic；Step 4: if top rotary table uniform rotation, the second circular slab is not rotated；If top rotary table rotation is too fast, controller is logical
Crossing servo motor drives the rotation of the second circular slab that the damping hole of the second circular slab and the damping hole of the first circular slab is made to misplace to increase
In addition the resistance that turntable is subject to, until top rotary table uniform rotation, while observing torque value, damping mechanism setting must not exceed most
Large torque value.This method has broken current conventional swivel mode, makes top rotary table rotating manner by one-way force applying, changes into two-way
Force adjusts the rotation feelings of top rotary table according to rotation situation eventually by the traction top rotary table rotation of the resultant force of tractive force and resistance
Condition avoids the occurrence of the unbalance initiation accident of rotation, eliminates safe hidden trouble to reach the more stable state of rotation.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover within the scope of the claims and the description of the invention.
Claims (10)
1. a kind of swivel structure for continuous beam, including top rotary table, lower rotary table and trailer system, the top rotary table rotational installation
It is connect by hauling rope with the top rotary table in the output end of the upper surface of described lower rotary table, the trailer system, for driving
Turntable rotation；
It is characterized by also including the equalising torque case for being installed on the lower rotary table, the circumferential side wall of the top rotary table is equipped with one
The gear teeth are enclosed, the input shaft of the equalising torque case is equipped with gear, makes the input shaft by gear and gear teeth meshing and turns
Disk rotation connection；
The inside of the equalising torque case is equipped with damping mechanism, and the damping mechanism and the input shaft are sequentially connected, are used for
The rotation direction of top rotary table applies resistance.
2. a kind of swivel structure for continuous beam according to claim 1, it is characterised in that: the week of the lower rotary table
The bearing block being rotatablely connected with the input shaft is equipped with to side wall.
3. a kind of swivel structure for continuous beam according to claim 1, it is characterised in that: the equalising torque case
Equipped with multiple, multiple equalising torque casees are uniformly distributed along the circumferential side wall of lower rotary table.
4. a kind of swivel structure for continuous beam according to claim 1, it is characterised in that: the equalising torque case
Including cabinet and it is installed on speed increasing mechanism, crank link mechanism, piston body and the damping mechanism of box house, and booster engine
Structure, crank link mechanism, piston body and damping mechanism are equipped with shell；
The speed increasing mechanism transmission connection is between the input shaft and crank link mechanism, for reducing the torque of input shaft；
The crank link mechanism transmission connection is between the speed increasing mechanism and piston body, for transporting the rotation of speed increasing mechanism
Turn turns to linear reciprocating motion, and the first piston chamber of crank link mechanism is connected to the second piston chamber of piston body, even
The cavity of logical part is full of hydraulic oil；
The second piston bar of the piston body and the damping mechanism are sequentially connected, and control second piston bar by damping mechanism
The resistance being subject to is to control the resistance that input shaft is subject to.
5. a kind of swivel structure for continuous beam according to claim 4, it is characterised in that: the damping mechanism packet
Include third plunger shaft, third piston, third piston rod and back cavity；The third piston rod and the fixed company of the second piston bar
It connects and the two synchronizing moving, the both ends of the back cavity correspond with the both ends of third plunger shaft be connected to respectively, and then make
Third plunger shaft forms the cavity being connected to back cavity；
The inside of the back cavity is equipped with the damping sheet with damping hole, drives third piston living in third by third piston rod
The other side filled in intracavitary sliding and then the hydraulic oil of damping sheet side is made to enter damping sheet by damping hole.
6. a kind of swivel structure for continuous beam according to claim 5, it is characterised in that: the damping sheet includes
First circular slab and the second circular slab, first circular slab and the second circular slab are overlapped and the two coaxially relatively rotates；
The axial direction of first circular slab and the second circular slab is distributed multiple damping holes, and the damping hole of the first circular slab and
The damping hole of second circular slab is overlapped；
The back cavity is radially provided with annular mounting groove, and the edge seal of first circular slab is fixed in mounting groove, institute
The rotational installation of the second circular slab is stated in mounting groove, makes the damping hole and the first circle of the second circular slab by rotating the second circular slab
The damping hole of shape plate misplaces, and then changes the flow for flowing through damping hole.
7. a kind of swivel structure for continuous beam according to claim 6, it is characterised in that: the damping mechanism is also
Including damper regulation mechanism, the damper regulation mechanism includes worm screw, turbine and servo motor；The turbine and second circle
Shape plate is coaxially fixed, and the worm screw engages with turbine, and the rotation axis of worm screw runs through the side wall of back cavity and is fixed on reflux
The servo motor transmission of the outer surface of chamber side wall connects, and drives the rotation of the second circular slab to change stream by servo motor
Flow through damping hole.
8. a kind of swivel structure for continuous beam according to claim 5, it is characterised in that: the damping mechanism is set
There is the third piston rod of multiple and each damping mechanism to be fixedly connected with the second piston bar and synchronizing moving.
9. a kind of swivel structure for continuous beam according to claim 7, it is characterised in that: further include controller,
Display and torque sensor, the torque sensor are installed on the input shaft for detecting the torque of input shaft；It is described
Controller is electrically connected with the torque sensor and with servo motor respectively.
10. a kind of for controlling the rotating method of swivel, it is characterised in that: applied to as claimed in claim 9 a kind of for connecting
The swivel structure of continuous beam, comprising the following steps:
Step 1: controller makes the damping hole and the first circle of the second circular slab by servo motor drive the second circular slab rotation
The damping hole of plate is overlapped；
Step 2: top rotary table rotates under the traction of trailer system, and controller detects the torque of input shaft by torque sensor,
And display shows the torque value of torque；
Step 3: whether observation top rotary table is in uniform rotation；
Step 4: if top rotary table uniform rotation, the second circular slab is not rotated；If top rotary table rotates too fast, controller
By servo motor drive the second circular slab rotation make the second circular slab damping hole and the first circular slab damping hole dislocation with
Increase the resistance that top rotary table is subject to, until top rotary table uniform rotation, while observing torque value, must not exceed damping mechanism setting
Maximum resistance value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117212382A (en) * | 2023-11-09 | 2023-12-12 | 中铁三局集团有限公司 | Active and semi-active viscous fluid damper and control method thereof |
| CN117864306A (en) * | 2024-03-04 | 2024-04-12 | 招商局重庆交通科研设计院有限公司 | Anti-drop anchor speed limiting device |
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| CN117212382A (en) * | 2023-11-09 | 2023-12-12 | 中铁三局集团有限公司 | Active and semi-active viscous fluid damper and control method thereof |
| CN117212382B (en) * | 2023-11-09 | 2024-01-23 | 中铁三局集团有限公司 | Control method of active and semi-active viscous fluid damper |
| CN117864306A (en) * | 2024-03-04 | 2024-04-12 | 招商局重庆交通科研设计院有限公司 | Anti-drop anchor speed limiting device |
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