CN108622804A - Changing resistor type bridge crane panning angle measuring device - Google Patents
Changing resistor type bridge crane panning angle measuring device Download PDFInfo
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- CN108622804A CN108622804A CN201810798248.5A CN201810798248A CN108622804A CN 108622804 A CN108622804 A CN 108622804A CN 201810798248 A CN201810798248 A CN 201810798248A CN 108622804 A CN108622804 A CN 108622804A
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
- B66C2700/01—General aspects of mobile cranes, overhead travelling cranes, gantry cranes, loading bridges, cranes for building ships on slipways, cranes for foundries or cranes for public works
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The present invention relates to a kind of changing resistor type bridge crane panning angle measuring devices, the left and right pivot angle information of lifting rope is converted into the transmission displacement information of two hard cords between two pulleys, by designing the radius annulus equal with lifting rope between hard cord, transmission of the two hard cords of drive on pulley that swing of lifting rope is allowed.The swing of lifting rope is accurately converted into the rotation of rocker central shaft by lightweight rocker.The swing of lifting rope can be converted to the rotation of annulus by being tied with the disk of equal distribution resistance wire, and then show as the variation of resistance, eventually by the rotational angle that disk is calculated, the i.e. front and back pivot angle of lifting rope.The present invention has simple in structure, accuracy height, advantage easy to maintain, cheap.
Description
Technical field
The present invention relates to bridge crane panning angle measuring device, more particularly to the double hoisting dual-hanger bridge crane pivot angles of a kind of changing resistor type are surveyed
Measure device.
Background technology
The annual throughput of present each port and pier is all sharply increasing, in order to expand harbour container delivery speed and
Efficiency, single increase sea port berths are that delivery requirements are much not achieved.For this purpose, compared to traditional single appliance bridge crane, propose
A kind of double hoisting dual-hanger bridge crane devices, it can deliver two containers, substantially increase the efficiency of loading and unloading simultaneously.Bridge crane control
The control task of system processed mainly realizes the position movement of trolley in the case where inhibiting hunting of load, and in order to improve bridge crane
Efficiency is delivered, the task of bridge crane control system, which expands to, realizes the two-electron atom even synchronous control of more suspenders.
However, there are many some present major ports or single raising field bridge system, it is main still to its some controls
It range estimation based on suspension bridge operating personnel and manually controls.Since the inertia of trolley load is along with some external environments such as wind-force
Disturbance can be such that lifting rope generation waves, and this swing not only has a great impact to the operational efficiency of container, but also there are poles
Big security risk.Therefore it needs to design corresponding controller to inhibit the swing of lifting rope.
And there are many ways to inhibiting to swing, most of traditional method is based on mechanical anti-roll device, and this machinery is anti-
It shakes and is swung to consume the energy of swing with achieving the purpose that finally to reduce generally by mechanical means.But this stabilizing structure
More complicated, poor reliability, repair expense are big, and anti-to shake effect also poor.There is the anti-of some harbours to shake equipment use now
Electronic anti-swinging equipment, the basis of electronic anti-swinging is the accurate pivot angle of lifting rope to be obtained, this is also an anti-key for shaking control
Problem.
Most of swing angle detection device can be divided into contact measurement and non-contact type detection at present.A kind of existing contact
Detection device is mainly swung by lifting rope and drives rocker rotation, then is measured on corresponding pivot angle encoder, but this
The accuracy of kind detection device is not high, especially when pivot angle is smaller, is not easy to detect small pivot angle information.Contactless inspection
It surveys device normal open and uses Laser Goniometer, this quasi-instrument angle is higher to operating environment requirements, and expensive, resolution ratio is not high, easily
It is disturbed.
In addition, shaking or the device of electronic anti-swinging is not automation field bridge control system based on machinery is anti-, so to load
The inefficient and real-time of weave control is not also strong.And for the automation control of field bridge system, although also proposed
Based on some of C and PLC single raisings field bridge control program, but the detection unit of these schemes, which uses some, compares such as speed
The detection devices such as sensor, angular transducer and camera are spent, these detection devices are not only expensive, use difficult, precision
Not high and relatively high to environmental requirement, external interference resistance is poor.These factors have the pivot angle detection of load prodigious
It influences.
Also, existing bridge crane detection device is essentially all to be designed for single appliance bridge crane, due to novel bridge suspender
There are two can individually raising suspender, so swing angle detection device above-mentioned is difficult respectively while to measure their pendulum
Angle.
Invention content
The present invention relates to a kind of changing resistor type bridge crane panning angle measuring devices, are suitable for two-electron atom bridge crane or more appliance bridge cranes,
The change information that the three-dimensional pivot angle information of lifting rope can be converted to two conductor resistance resistance values, according to corresponding circuit theory point
The variation arc length of the variation displacement and front-rear direction disk of lifting rope left and right directions conducting wire is not obtained.The present invention have it is simple in structure,
Accuracy is high, easy to maintain, it is cheap the advantages that.
In order to achieve the above object, the present invention provides a kind of changing resistor type bridge crane panning angle measuring device, in overhead crane
Swing angle detection device is provided at trolley body, wherein：
It is wound on after the connection corresponding to the both ends of a first resistor distributed conducting wire of the both ends of one insulating rigid cord
On two pulleys；Wherein one end that the insulating rigid cord is connected with first resistor distributed conducting wire is equipped with annulus, upper end
The lifting rope being connect with suspender hoisting motor shaft is connected by suspender after the aperture of annulus and is loaded；
The port at the first resistor distributed conducting wire both ends, being fixed with can be with the first resistor distributed conducting wire
The first lead-out wire and third lead-out wire of transmission and movement；With the first resistor distributed conducting wire sliding contact but not with it
Second lead-out wire of transmission and movement, is fixed therein the edge of a pulley；Outside by the first lead-out wire and third lead-out wire
It connects constant voltage source and provides constant voltage for first resistor distributed conducting wire, examined by the first lead-out wire and the second lead-out wire
Survey voltage value.
Optionally, in the swing angle detection device, top and the center axis connection of lightweight rocker, the central shaft side is consolidated
Surely there is the disk of lightweight；The center of two pulleys is fixed at two ports of lightweight rocker bottom, and lifting rope is swung
To drive the rotation of central shaft by lightweight rocker, and then drive the rotation of disk；
Being bundled on the edge of the disk half can be with the second resistance distributed conducting wire of disk rotational；Second resistance
The port at distributed conducting wire both ends, be fixed with can with disk rotational the 4th lead-out wire of movement and the 6th lead-out wire；With institute
State second resistance distributed conducting wire sliding contact but the 5th lead-out wire of movement not with disk rotational, by with fixed link
Connect and be located in the edge of disk；It is the second resistance by the 4th lead-out wire and the 6th external constant voltage source of lead-out wire
Distributed conducting wire provides constant voltage, and voltage value is detected by the 4th lead-out wire and the 5th lead-out wire.
Optionally, the conductive ring set of will not move first is fixed on the outside of one of pulley to come and the second lead-out wire phase
Connection, the first resistor distributed conducting wire are passed through from the first conductive ring set；When lifting rope swings, first resistor etc.
Electricity distribution body is driven between pulley, and generates sliding contact with the first conductive ring set.
Optionally, it is fixed with the second conductive ring set in the fixed link, is positioned at the edge of disk, second resistance decile
Cloth conducting wire is passed through from the described second conductive ring set；When disk rotational, the second resistance distributed conducting wire and second
Conductive ring set sliding contact.
Optionally, the radius of the annulus aperture is equal with lifting rope radius.
Optionally, the voltage detected from the first lead-out wire and the second lead-out wire is received by signal processing apparatus, to ask
Take the pivot angle θ of lifting rope in left and right directions1：
Wherein, the insulating rigid cord between two pulleys of suspender hoisting motor shaft distance, first resistor distributed
The height of conducting wire is H1；
The constant voltage provided to the first lead-out wire and third lead-out wire is U；
The voltage detected from the first lead-out wire and the second lead-out wire under equilibrium state is
Resistance length under equilibrium state between the first lead-out wire and the second lead-out wire is L1；
The voltage detected from the first lead-out wire and the second lead-out wire when lifting rope swings is
Resistance length when lifting rope swings between the first lead-out wire and the second lead-out wire is
。
Optionally, the voltage detected from the 4th lead-out wire and the 5th lead-out wire is received by signal processing apparatus, to ask
Take lifting rope in pivot angle θ in the front-back direction2：
The radius R of disk；
The constant voltage provided to the 4th lead-out wire and the 6th lead-out wire is U；
The voltage detected from the 4th lead-out wire and the 5th lead-out wire under equilibrium state is
Resistance length under equilibrium state between the 4th lead-out wire and the 5th lead-out wire is
The voltage detected from the 4th lead-out wire and the 5th lead-out wire when lifting rope swing is
Resistance length under equilibrium state between the 4th lead-out wire and the 5th lead-out wire is
。
Optionally, pivot angle θ of the signal processing apparatus according to lifting rope in left and right directions1, in pivot angle θ in the front-back direction2, to ask
Take the three-dimensional pivot angle θ of lifting rope：
。
Optionally, the signal processing apparatus further includes：
Two input ports receive the first voltage signal detected from the first lead-out wire and the second lead-out wire respectively, and
The second voltage signal detected from the 4th lead-out wire and the 5th lead-out wire；
Signal receive and processing unit, to continuous input signal carry out type conversion, output with first voltage signal or
The corresponding voltage digital signal of second voltage signal；
Pivot angle processing unit carries out lifting rope left and right directions pivot angle according to the corresponding voltage digital signal of first voltage signal
It calculates, the calculating of lifting rope front-rear direction pivot angle is carried out according to the corresponding voltage digital signal of second voltage signal, and to lifting rope
Three-dimensional pivot angle calculated；
Signal output unit, the output port that the semaphore that pivot angle processing unit operation obtains is passed through into signal processing apparatus
The display being transported at crane anti-swing device and/or driver's cabin workbench.
Optionally, there are one overhead crane is set or two or more than two suspender hoisting motors, by respectively corresponding to
Lifting rope and suspender connect corresponding load；The changing resistor type bridge crane panning angle measuring device is provided with accordingly each lifting rope
Swing angle detection device.
The present invention provides a kind of changing resistor type bridge crane panning angle measuring device, is closed according to resistance and the ratio of resistance length
It is to determine corresponding displacement, specifically, the conducting wire on set counter device pulley can be driven respectively by being exactly the swing of lifting rope
Transmission and the device on disk rotation, and conducting wire transmission distance and disk rotational distance be all by the resistance value of resistance come
Judged, so as to obtain the three-dimensional pivot angle information of lifting rope.The pivot angle information may be displayed on the people of bridge crane driver's cabin
On machine interface, for the reference of container crane operator, to improve the work quality of operator and working efficiency and subtract
Light work is born.
The constructional device very simple and dexterity of the present invention, is easy to build, of low cost and maintain easily.Meanwhile this hair
The principle of the changing resistor type detection displacement of bright use is not substantially by external environmental interference, and accuracy is high, so substantially completely
Overcome some problems of the existing technology.Also, the structure that the present invention designs can not only detect the three of single suspender field bridge
Pivot angle is tieed up, but also the two-electron atom even three-dimensional pivot angle of more suspender fields bridge can be detected.
Description of the drawings
Fig. 1 is based on changing resistor type double-lifting double-lifting-applibridge bridge crane tilt angle measuring device overall structure diagram.
Fig. 2 is deflection angle measurement device enlarged drawing.
Fig. 3 is rotating circular disk partial enlarged view.
Fig. 4 is left and right swing angle detection device structure chart and sheave segment enlarged drawing.
Fig. 5 is the exploded view of three-dimensional pivot angle.
Fig. 6 is two-electron atom bridge crane panning angle measuring flow chart.
Fig. 7 is the composite structural diagram of signal processing apparatus.
Specific implementation mode
Below in conjunction with attached drawing, illustrate the specific implementation mode of the present invention.
As shown in Figure 1, in double hoisting dual-hanger bridge cranes, including overhead crane 1, big mechanism of car 2, trolley body 3, pivot angle inspection
Survey device 4, lifting rope 5, load 6, signal processing apparatus 7.The signal processing apparatus 7 is mainly used to receive and handle pivot angle detection
The voltage signal that device 4 is measured from Liang Chu, while including that the calculating to both direction pivot angle and synthesis operation, specific function exist
Hereafter it is described in detail in the calculating of pivot angle and building-up process.
In Fig. 2, by taking single suspender as an example, the detailed configuration of swing angle detection device 4 is illustrated.Wherein, lightweight rocker 11 pushes up
The both ends in portion are connect with central shaft 10, and disk 8 (more specifically Local map as shown in Figure 3) is fixed at the central shaft 10,
It can be rotated together with central shaft 10；The both ends of 11 bottom of lightweight rocker are connect with two pulleys 14 respectively, are made in pulley 14
The heart is fixed at the port of lightweight rocker 11.
The both ends of insulating rigid cord 15 and resistance distributed conducting wire 16 are wound on after accordingly connecting on two pulleys 14；Institute
It is also rigid material to state resistance distributed conducting wire 16, and conductor length will not be stretched.Insulating rigid cord 15 and resistance etc.
The connected wherein one end of electricity distribution body 16 is equipped with annulus 13, and the radius of 13 aperture of annulus is equal with lifting rope radius；5 upper end of lifting rope
It is connect with suspender hoisting motor shaft 12, lifting rope 5 passes through suspender connection load 6 after the aperture of annulus 13；The swing of lifting rope 5
The rotation of central shaft 10 can be driven by lightweight rocker 11, and then drives the rotation of disk 8.
As shown in figure 3, the center of disk 8 is fixed on the center shaft 10, which is lightweight disk, on the side of its half
Another resistance distributed conducting wire 23 is bundled on edge, which can follow disk 8 to rotate together.It is provided with by disk 8
Fixed link 9 is mainly used to a lead-out wire (described below) of fixed resistance distributed conducting wire 23.8 edge of corresponding disk
At one, it is provided with conductive ring set 24, is fixed in fixed link 9, makes resistance distributed conducting wire 23 from the conduction ring set 24
It passes through, when disk 8 rotates, being bundled in the resistance distributed conducting wire 23 at 8 edge of disk can connect with the sliding of conductive ring set 24
It touches.
The lead-out wire 17,18,19,20,21,22 of resistance wire, their resistance can be ignored.Wherein, draw
Outlet 19 and 22 is the lead-out wire at 23 both ends of resistance distributed conducting wire on disk 8, is fixed on the resistance distributed conducting wire 23
Port, external constant voltage source be entire resistance distributed conducting wire 23 constant voltage U is provided；Lead-out wire 19 and 22 can be with
It is moved with the rotation of disk.Another lead-out wire 20 on resistance distributed conducting wire 23 is located in disk by fixed link 9
At the one of 8.
Lead-out wire 17 and 21 is fixed on the port at 16 both ends of resistance distributed conducting wire, can be with the resistance equal distribution
The transmission of formula conducting wire 16 and move.Another lead-out wire 18 of resistance distributed conducting wire 16 is fixed therein 14 side of pulley
At the one of edge, specific fixed form is as shown in Figure 4.Constant voltage source is resistance distributed conducting wire by lead-out wire 17 and 21
16 provide constant voltage U, while detecting voltage value by lead-out wire 17 and 18.
In Fig. 4 it will be clear that on lifting rope 5 and pulley 14 insulating rigid cord 15 connection type, and insulation
Connection type between hard cord 15 and two pulleys 14.Conductive ring set 25 on one pulley 14 is fixed on the outer of the pulley 14
Any movement will not occur for side, be connected with lead-out wire 18, and resistance distributed conducting wire 16 extends there through.When lifting rope 5 or so
When swing, resistance distributed conducting wire 16 can be driven between pulley 14,16 meeting of resistance distributed conducting wire at this time and conducting ring
Set 25 generates sliding contact.
Fig. 6 is two-electron atom bridge crane panning angle measuring flow chart.Assuming that suspender a and suspender b are respectively on same two-electron atom trolley
Two suspenders.When two-electron atom bridge crane works, working instruction signal, big mechanism of car 2 and trolley body 3 are sent out by driver's cabin first
Start running, the lifting rope 5 on two suspenders starts to swing, signal processing apparatus 7 start receive lead-out wire 17 and 18,19 and 20 it
Between voltage, and the pivot angle value θ by the way that lifting rope 5 on two suspenders is calculated accordingly1And θ2, obtained pivot angle value can be with
It is transported on crane anti-swing device or on the display screen of driver's cabin staff.
As shown in fig. 7, signal processing apparatus 7 is mainly received comprising signal and processing unit 26,27 and of pivot angle processing unit
Signal output unit 28.The input port 29,30 of signal processing apparatus 7, output port 31.
The concrete condition of each unit is as follows：
Signal receives and processing unit 26 is a converting unit, and function is to carry out type to continuous input signal to turn
(such as A/D conversions) is changed, what input port received is between input port 29,30 corresponding lead-out wires 17 and 18,19 and 20
Voltage signal (signal be weak signal), the stable voltage digital signal of output port output.The converting unit includes signal
Filter, A/D converter, storage unit, I/O bus units and power-supply system.
Pivot angle processing unit 27 is an arithmetic element, and function is to carry out corresponding operation, the fortune to received signal
It calculates mainly comprising two aspects, first, the front and back pivot angle and left and right pivot angle to lifting rope calculate, second is that front and back pivot angle and a left side
Right pivot angle is synthesized, and the three-dimensional pivot angle of lifting rope is become, and specific calculation step is visible below.Pivot angle processing unit 27 it is defeated
Inbound port is received with signal and the output interface of processing unit 26 is connected, i.e., carries out operation to transformed digital voltage signal.
The pivot angle processing unit 27 includes signal condition unit, CPU element, storage unit, I/O interfaces and power-supply system, signal condition
Unit is mainly used to be amplified weak voltage signal, makes it the manageable signals of CPU.And CPU is as entire single
The core of member, the algorithm different from compounding design to the calculating of pivot angle, specific algorithm also illustrate in calculation step respectively.
Signal output unit 28 is a transmission unit, and function is the semaphore for obtaining 27 operation of pivot angle processing unit
It is transported on some external equipments by the output port 31 of signal processing apparatus 7, as on workstation display or specific anti-
Shake the input port of device.The transmission unit includes mainly power amplifier, I/O interfaces and power supply.
It is calculated firstly, for the left and right pivot angle of lifting rope 5, it is known that suspender hoisting motor shaft 12 is away from exhausted between two pulleys 14
Edge hard cord 15, resistance distributed conducting wire 16 height be H1, after providing constant voltage U to lead-out wire 17 and 21, put down
The voltage of lead-out wire 17 and the lead-out wire 18 for being fixed on pulley boundary is U under weighing apparatus state1(from electric resistance partial pressure principle
), the resistance length at both ends is L1, when lifting rope 5 swings, if the voltage signal that signal processing apparatus 7 detects is
Then according to circuit theory it is found that set resistance length when swing between two lead-out wires 17,18 ports as
It can be obtained by above formulaIn the left and right pivot angle θ that can acquire lifting rope 5 by corresponding operation1：
Wherein work as θ1For timing, indicate lifting rope 5 to left swing θ1Degree；Work as θ1When being negative, indicate that lifting rope 5 puts to the right θ1Degree.
And the front and back pivot angle of lifting rope 5 is calculated, it is known that the radius of disk 8 is R, constant when being provided to lead-out wire 19 and 22
After voltage U, lead-out wire 19 is U with the voltage for being fixed on lead-out wire 20 in fixed link 9 under equilibrium state2 Its both ends
Resistance length be L2(the L under the structure2It is equal to), when 5 swing of lifting rope, if what signal processing apparatus 7 detected
Voltage signal isThen according to circuit theory it is found that set resistance length when swing between two lead-out wires 19,20 ports as
It can be obtained by above formulaBefore and after it can acquire the rotational angle i.e. lifting rope 5 of disk by corresponding operation
Pivot angle θ2：
Wherein work as θ2For timing, indicate lifting rope 5 to forward swing θ2Degree；Work as θ2When being negative, indicate that lifting rope 5 puts θ backward2Degree.
As shown in figure 5, for the three-dimensional pivot angle of entire lifting rope 5, left and right directions and pendulum in the front-back direction can be passed through respectively
Angle, which is synthesized into, to be come.By trigonometric function theorem it is found that the three-dimensional pivot angle θ of lifting rope 5：
In conclusion the left and right pivot angle information of lifting rope 5 is converted into the biography of two hard cords between two pulleys 14 by the present invention
Dynamic displacement information by designing the radius annulus 13 equal with lifting rope 5 between hard cord, and then allows the left side of lifting rope 5
It is right to swing to drive transmission of the two hard cords on pulley 14.Simultaneously as both ends pulley 14 is transmitted, so two is hard
Suffered frictional force very little when matter cord is driven, and then ensure that the precision of detection.
The swing of lifting rope 5 accurately can be converted into rocker central shaft 10 by the lightweight rocker 11 that the present invention designs
Rotation.The swing of lifting rope 5 can be converted to the rotation of annulus 8, Jin Erbiao by being tied with the disk 8 of equal distribution resistance wire 21
It is now the variation of resistance, eventually by the rotational angle that disk 8 is calculated, the i.e. front and back pivot angle of lifting rope 5.
The present invention secures a conductive ring set 22,23 in fixed link 9 and pulley 14 respectively so that they can be with electricity
Hinder conducting wire sliding contact.So as to which the rotation information of the displacement information of two hard cords and disk 8 is directly changed into electricity
The resistance value size of resistance.
The hard cord that the present invention selects the case where stretching can not occur when swing occurs for lifting rope 5 in cord
Under, directly give annulus 13 1 power for driving cord 15,16 to swing by lifting rope 5, it is ensured that the accuracy of detection.
The voltage that the various signal processing units contained by signal processing apparatus 7 designed by the present invention will can be measured directly
Signal is converted to the pivot angle information of lifting rope 5.
Present invention may apply to two-electron atom bridge crane, it can also be generalized on more appliance bridge cranes and use.
Although present disclosure is discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for the present invention's
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (10)
1. a kind of changing resistor type bridge crane panning angle measuring device, which is characterized in that be provided with pendulum at the trolley body of overhead crane
Angle detecting device, wherein：
It is wound on two after the connection corresponding to the both ends of a first resistor distributed conducting wire of the both ends of one insulating rigid cord
On pulley；Wherein one end that the insulating rigid cord is connected with first resistor distributed conducting wire be equipped with annulus, upper end with hang
The lifting rope for having the connection of hoisting motor shaft connects load after the aperture of annulus by suspender；
The port at the first resistor distributed conducting wire both ends, being fixed with can be with the transmission of the first resistor distributed conducting wire
And mobile the first lead-out wire and third lead-out wire；It is driven with the first resistor distributed conducting wire sliding contact but not with it
And the second mobile lead-out wire, it is fixed therein the edge of a pulley；Pass through the first lead-out wire and the external perseverance of third lead-out wire
Constant voltage source provides constant voltage for first resistor distributed conducting wire, and electricity is detected by the first lead-out wire and the second lead-out wire
Pressure value.
2. changing resistor type bridge crane panning angle measuring device described in claim 1, which is characterized in that
In the swing angle detection device, top and the center axis connection of lightweight rocker, the central shaft side is fixed with lightweight
Disk；The center of two pulleys is fixed at two ports of lightweight rocker bottom, and the swing of lifting rope is able to pass through lightweight
Rocker drives the rotation of central shaft, and then drives the rotation of disk；
Being bundled on the edge of the disk half can be with the second resistance distributed conducting wire of disk rotational；Second resistance decile
The port at cloth conducting wire both ends, be fixed with can with disk rotational the 4th lead-out wire of movement and the 6th lead-out wire；With described
Two resistance distributed conducting wire sliding contacts but the 5th lead-out wire of movement not with disk rotational, pass through the connection with fixed link
And it is located in the edge of disk；It is the second resistance decile by the 4th lead-out wire and the 6th external constant voltage source of lead-out wire
Cloth conducting wire provides constant voltage, and voltage value is detected by the 4th lead-out wire and the 5th lead-out wire.
3. changing resistor type bridge crane panning angle measuring device described in claim 1, which is characterized in that
The conductive ring set of will not move first is fixed on the outside of one of pulley to be connected with the second lead-out wire, described the
One resistance distributed conducting wire is passed through from the first conductive ring set；When lifting rope swings, first resistor distributed conducting wire
It is driven between pulley, and sliding contact is generated with the first conductive ring set.
4. the changing resistor type bridge crane panning angle measuring device described in claim 2, which is characterized in that
Be fixed with the second conductive ring set in the fixed link, be positioned at the edge of disk, second resistance distributed conducting wire from
It is passed through in described second conductive ring set；When disk rotational, the second resistance distributed conducting wire and the second conductive ring set are slided
Dynamic contact.
5. changing resistor type bridge crane panning angle measuring device described in claim 1, which is characterized in that
The radius of the annulus aperture is equal with lifting rope radius.
6. changing resistor type bridge crane panning angle measuring device as claimed in claim 1 or 2, which is characterized in that
The voltage detected from the first lead-out wire and the second lead-out wire is received by signal processing apparatus, to seek lifting rope in left and right
The pivot angle θ in direction1：
Wherein, the insulating rigid cord between two pulleys of suspender hoisting motor shaft distance, first resistor distributed conducting wire
Height be H1；
The constant voltage provided to the first lead-out wire and third lead-out wire is U；
The voltage detected from the first lead-out wire and the second lead-out wire under equilibrium state is
Resistance length under equilibrium state between the first lead-out wire and the second lead-out wire is L1；
The voltage detected from the first lead-out wire and the second lead-out wire when lifting rope swings is
Resistance length when lifting rope swings between the first lead-out wire and the second lead-out wire is
。
7. the changing resistor type bridge crane panning angle measuring device described in claim 6, which is characterized in that
The voltage detected from the 4th lead-out wire and the 5th lead-out wire is received by signal processing apparatus, to seek lifting rope front and back
The pivot angle θ in direction2：
The radius R of disk；
The constant voltage provided to the 4th lead-out wire and the 6th lead-out wire is U；
The voltage detected from the 4th lead-out wire and the 5th lead-out wire under equilibrium state is
Resistance length under equilibrium state between the 4th lead-out wire and the 5th lead-out wire is
The voltage detected from the 4th lead-out wire and the 5th lead-out wire when lifting rope swing is
Resistance length under equilibrium state between the 4th lead-out wire and the 5th lead-out wire is
。
8. the changing resistor type bridge crane panning angle measuring device described in claim 7, which is characterized in that
Pivot angle θ of the signal processing apparatus according to lifting rope in left and right directions1, in pivot angle θ in the front-back direction2, to seek the three-dimensional of lifting rope
Pivot angle θ：
。
9. changing resistor type bridge crane panning angle measuring device according to any one of claims 8, which is characterized in that
The signal processing apparatus further includes：
Two input ports, receive the first voltage signal detected from the first lead-out wire and the second lead-out wire respectively, and from
The second voltage signal that four lead-out wires and the 5th lead-out wire detect；
Signal receives and processing unit, and type conversion, output and first voltage signal or second are carried out to continuous input signal
The corresponding voltage digital signal of voltage signal；
Pivot angle processing unit carries out the meter of lifting rope left and right directions pivot angle according to the corresponding voltage digital signal of first voltage signal
It calculates, the calculating of lifting rope front-rear direction pivot angle is carried out according to the corresponding voltage digital signal of second voltage signal, and to lifting rope
Three-dimensional pivot angle is calculated；
Signal output unit, the semaphore that pivot angle processing unit operation is obtained are conveyed by the output port of signal processing apparatus
Display at crane anti-swing device and/or driver's cabin workbench.
10. the changing resistor type bridge crane panning angle measuring device described in any one of claim 1-9, which is characterized in that overhead crane
There are one if or two or more than two suspender hoisting motors, connected by corresponding lifting rope and suspender corresponding
Load；The changing resistor type bridge crane panning angle measuring device is provided with corresponding swing angle detection device to each lifting rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810798248.5A CN108622804A (en) | 2018-07-19 | 2018-07-19 | Changing resistor type bridge crane panning angle measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810798248.5A CN108622804A (en) | 2018-07-19 | 2018-07-19 | Changing resistor type bridge crane panning angle measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN108622804A true CN108622804A (en) | 2018-10-09 |
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| CN201810798248.5A Pending CN108622804A (en) | 2018-07-19 | 2018-07-19 | Changing resistor type bridge crane panning angle measuring device |
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| CN110426000A (en) * | 2019-08-26 | 2019-11-08 | 上海海事大学 | A kind of swing angle detection device and method based on light polarization |
| CN111962913A (en) * | 2020-08-24 | 2020-11-20 | 广厦建设集团有限责任公司 | Intelligent template strutting arrangement for building engineering construction |
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Application publication date: 20181009 |