CN108383018A - A kind of arm-folding crane Weighting system and its control method - Google Patents
A kind of arm-folding crane Weighting system and its control method Download PDFInfo
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- CN108383018A CN108383018A CN201810279688.XA CN201810279688A CN108383018A CN 108383018 A CN108383018 A CN 108383018A CN 201810279688 A CN201810279688 A CN 201810279688A CN 108383018 A CN108383018 A CN 108383018A
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- arm
- host computer
- weight
- crane
- communication module
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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
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
Abstract
A kind of arm-folding crane Weighting system and its control method.It is related to engineering machinery field, more particularly to the improvement to crane counterweight device.Clump weight position can be adjusted in real time according to actual use situation, can adjust hoisting moment in real time.The arm-folding crane is set on carrier loader, the carrier loader is equipped with several to supporting leg, the arm-folding crane includes arm, the head end of the arm is equipped with suspension hook, the end of the arm is equipped with counter weight device, the counter weight device includes holder and the balance weight mechanism that is movably arranged on the holder, and the holder is fixed at the end of the arm of the arm-folding crane；In actual use, clump weight adjusts position according to real load situation, to which practical adjustment torque size can effectively reduce the risk that crane topples under big load state to adapt to different loads size.
Description
Technical field
The present invention relates to engineering machinery fields, more particularly to the improvement to crane counterweight device.
Background technology
Arm-folding crane is to be used to lift the conventional machinery of weight in height-limited place, in order to enable arm-folding crane
Torque bigger, generally the end of the arm of arm-folding crane be arranged counterweight, to prevent crane side from turning over, general crane
Counterweight is set to boom tip and its position and weight cannot change, and causes force moment of crane unadjustable, can only lift by crane solid
Determine the article of weight.
In view of the above-mentioned problems, State Intellectual Property Office 2016-3-30 discloses an application for a patent for invention（CN
105439017 A, crane）It is disclosed that a kind of crane, and specifically disclose including suspended counterweight and push unit, it hangs
Balance weight hanging setting is hung, push unit is connect with suspended counterweight；Push unit can drive suspended counterweight luffing.Above-mentioned technical proposal
The crane of offer, the push unit with suspended counterweight and drive suspended counterweight luffing.In the lifting for needing raising crane
When performance, by changing suspended counterweight amplitude, increases counterbalance moment and significantly carrying for ring rail crane lifting performance can be realized
It rises, improves vehicle utilization rate, can be the economic interests that user brings bigger.Also, changes suspended counterweight amplitude, increases counterweight
The realization method of torque is simple, and operability is strong, and entire adjustment process increases counterweight without other, has saved resource, realizes
Easily adjust complete machine hoisting moment.But be only capable of adjusting balance position in advance according to hanging object weight before lifting starts,
Balance position cannot be adjusted in real time according to actual state during lifting.
Invention content
The present invention in view of the above problems, clump weight position can be adjusted in real time according to actual use situation by providing one kind,
The arm-folding crane counter weight device and its control method of hoisting moment can be adjusted in real time.
The technical scheme is that：A kind of arm-folding crane Weighting system, the arm-folding crane are set on carrier loader,
The carrier loader is equipped with several to supporting leg, and the arm-folding crane includes arm, and the head end of the arm is equipped with suspension hook, described
The end of arm is equipped with counter weight device, and the counter weight device includes holder and the balance weight mechanism that is movably arranged on the holder, institute
State the end that holder is fixed at the arm of the arm-folding crane；
The balance weight mechanism includes clump weight and drives the telescoping mechanism of the clump weight movement, and the telescoping mechanism is set in institute
It states in rack, guide-track groove is equipped in the rack, guide rail, one end of the guide rail and the telescopic machine are engaged in the guide-track groove
Structure connects, and the other end of the guide rail fixes the clump weight.
The clump weight includes substrate and several Weight plates on substrate, and the substrate is fixed on the guide rail,
The substrate is equipped with several guide piles, and Weight plate position corresponding with the guide pile is equipped with through-hole.
The telescoping mechanism includes fixed linear drive apparatus on the bracket, and the bottom of the guide rail is equipped with cross
Beam, the crossbeam are fixedly connected with the guide rail, and the drive shaft of the linear drive apparatus is fixedly connected with the crossbeam, described
Linear drive apparatus drives the clump weight to be slided along the sliding rail.
Further include the controller for controlling counter weight device, the controller includes sensor module and host computer, described
Host computer is communicated by communication module with the host computer, and the telescoping mechanism receives the host computer by the communication module
The instruction sent out.
The sensor module includes being respectively arranged on each supporting leg bottom and pressure sensor on suspension hook and being set to
Displacement sensor on the guide rail, several pressure sensors are communicated by communication module with the host computer respectively.
The communication module includes wire communication module and wireless communication module, the wire communication module and the sensing
Device connects, and the wireless communication module is connect with the host computer, and the wire communication module is connect with the host computer；
The communication module further includes central processing unit, and the wire communication module and the wireless communication module are separately connected
Central processing unit；
The wire communication module includes RS232 communication interfaces, and the RS232 communication interfaces pass through RS232 cables and sensor
Component connects, and the wireless communication module includes wireless signal transmitter and modem, the wireless signal transmitter with
Modem connection, the modem are equipped with outer network interface, the modem by outer network interface with
The internet connection.
The host computer includes computing unit, random access memory, display, alarm unit and data storage, it is described with
Machine memory is connect with the computing unit, and the random access memory is equipped with network interface, and the network interface is connect with outer net, the meter
Unit, data storage, display and alarm unit is calculated to connect with the computing unit respectively；
The computing unit includes microcontroller, and the microcontroller is separately connected the random access memory by I/O mouthfuls, data store
Device, display and alarm unit.
The alarm unit includes power supply, electromagnetic switch and buzzer, and the electromagnetic switch passes through I/O mouthfuls and the monolithic
Machine connects, and the power supply, electromagnetic switch and buzzer are sequentially connected, and are formed into a loop.
A kind of control method of arm-folding crane Weighting system, controls as follows：
1）System self-test
1.1）Host computer sends out detection signal,
1.2）The signal that sensor module feedback collection arrives,
1.3）Linear drive apparatus drives balance weight mechanism flexible,
1.4）Displacement sensor acquires the movement locus of balance weight mechanism；
2）Clump weight pre-adjustment
2.1）The weight for lifting by crane article is inputted into host computer,
2.2）Host computer sends out instruction according to the weight of input to straight line driving mechanism,
2.3）Linear drive apparatus drives balance weight mechanism flexible in place,
2.4）Displacement sensor acquires the movement locus of balance weight mechanism, and is uploaded to host computer,
3）Clump weight is finely tuned in real time
3.1）Pressure sensor on suspension hook collects practical hoisting weight, is transferred to host computer,
3.2）Host computer compares the lifting Item Weight of practical hoisting weight and pre-input, is then gone to step when gap is excessive
3.3）, then continue to lift by crane when gap is little；
3.3）Continue to lift by crane if the value of pre-input is more than practical hoisting weight, if the value of pre-input is less than practical hoisting weight
Go to step 3.4）；
3.4）Clump weight position is adjusted,
3.41）Host computer calculates the difference between practical hoisting weight and pre-input value,
3.42）Host computer goes out the distance that clump weight should adjust by mathematic interpolation, and generates instruction,
3.43）Linear drive apparatus drives balance weight mechanism flexible in place,
3.44）Displacement sensor acquisition balance weight mechanism physical location is transferred to host computer,
3.45）Host computer compares the collected signal of displacement sensor with order, continues to lift by crane if meeting, if not meeting
Alarm unit is alarmed, and is finished.
When soft leg phenomenon occurs for one of supporting leg during lifting, work step is as follows：
a）Host computer numbers the pressure sensor on supporting leg,
b）When the soft leg of one of supporting leg, the pressure reduction that supporting leg is born, remaining supporting leg bears pressure rising,
c）Host computer judges the leg location of soft leg according to number,
d）Host computer instructs linear drives to turn driving balance weight mechanism, finds equalization point again,
e）Continue to lift by crane if finding equalization point, if the alarm of equalization point alarm unit can not be found, stops lifting, finish.
In the present invention in actual use, clump weight adjusts position according to real load situation, to which practical adjustment torque is big
It is small, to adapt to different loads size, it can effectively reduce the risk that crane topples under big load state.
Weight plate is actually detachable with substrate so that can increase and decrease Weight plate according to real load in actual use
Quantity can either suitably increase Weight plate quantity so as to mitigate the weight of clump weight under big load state, prevent from rising
The danger toppled during hanging, and Weight plate quantity can be reduced under side crops industry state, it can subtract during lifting
The whole of few crane bears a heavy burden, can be energy saving, accelerates lifting speed to increase working efficiency.
Host computer can calculate required torque according to the weight of practical lifting article, and adjust automatically clump weight position is carrying
When lotus is larger, suitable torque can be calculated according to the difference of each lifting article, prevent from toppling during lifting
Danger.Torque can timely be reduced when load is smaller, the whole of crane is reduced and bear a heavy burden, can be energy saving, accelerate
Lifting speed is to increase working efficiency.Torque size according to actual needs is accurately adjusted, and is prevented overload and is inclined
The phenomenon that covering promotes security performance when entire crane work, prevents safety accident.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention,
Fig. 2 is the right view of Fig. 1,
Fig. 3 is the vertical view of Fig. 1,
Fig. 4 is the A-A sectional views of Fig. 3,
Fig. 5 is balance weight mechanism structural schematic diagram one in the present invention,
Fig. 6 is balance weight mechanism structural schematic diagram two in the present invention,
Fig. 7 is balance weight mechanism extended configuration schematic diagram in the present invention,
Fig. 8 is balance weight mechanism contraction state structural schematic diagram in the present invention,
Fig. 9 is use state of the present invention with reference to figure one,
Figure 10 is use state of the present invention with reference to figure two,
Figure 11 is Control system architecture block diagram in the present invention,
Figure 12 is alarm unit circuit diagram in the present invention；
1 is carrier loader in figure, and 11 be supporting leg, and 2 be crane, and 21 be arm, and 22 be counter weight device, and 221 be holder, and 2211 be to lead
Track slot, 2212 be guide rail, and 2213 be crossbeam, and 222 be balance weight mechanism, and 2221 be clump weight, and 2222 be telescoping mechanism.
Specific implementation mode
The present invention is as shown, a kind of arm-folding crane Weighting system, and the arm-folding crane 2 is on carrier loader 1, institute
It states carrier loader and is equipped with several to supporting leg 11, the arm-folding crane includes arm 21, and the head end of the arm is equipped with suspension hook, institute
The end for stating arm is equipped with counter weight device 22, and the counter weight device includes holder 221 and the counterweight that is movably arranged on the holder
Mechanism 222, the holder 221 are fixed at the end of the arm of the arm-folding crane；
The balance weight mechanism includes clump weight 2221 and drives the telescoping mechanism 2222 of the clump weight movement, the telescoping mechanism
Set on guide-track groove 2211 in the rack, is equipped in the rack 221, guide rail 2212 is engaged in the guide-track groove, it is described to lead
One end of rail is connect with the telescoping mechanism 2222, and the other end of the guide rail fixes the clump weight 2221.In actual use,
Clump weight adjusts position according to real load situation, to practical adjustment torque size, to adapt to different loads size, Neng Gouyou
Effect reduces the risk that crane topples under big load state.
The clump weight includes substrate and several Weight plates on substrate, and the substrate is fixed on the guide rail,
The substrate is equipped with several guide piles, and Weight plate position corresponding with the guide pile is equipped with through-hole.Weight plate and base
Plate is actually detachable so that can increase and decrease Weight plate quantity according to real load in actual use, so as to mitigate
The weight of clump weight can either suitably increase Weight plate quantity under big load state, prevent from toppling during lifting
Danger, and Weight plate quantity can be reduced under side crops industry state, the entirety that crane can be reduced during lifting is negative
Weight, can be energy saving, accelerates lifting speed to increase working efficiency.
The telescoping mechanism includes fixed linear drive apparatus on the bracket, and the bottom of the guide rail is equipped with crossbeam
2213, the crossbeam is fixedly connected with the guide rail, and the drive shaft of the linear drive apparatus is fixedly connected with the crossbeam, institute
Stating linear drive apparatus drives the clump weight to be slided along the sliding rail.In actual use when needing to adjust clump weight position,
Linear drive apparatus（Such as hydraulic device）Clump weight can be driven to be slided on guide rail, and hydraulic device is via fluid pressure line control
System, belongs to controlled range, the torque size of another aspect operator according to actual needs is accurately adjusted, prevented
The phenomenon that load is toppled promotes security performance when entire crane work, prevents safety accident.
Further include the controller for controlling the hoisting apparatus, the controller includes sensor module and host computer,
The host computer is communicated by communication module with the host computer, and the telescoping mechanism is received by the communication module on described
The instruction that position machine is sent out.Host computer can calculate required torque, adjust automatically clump weight position according to the weight of practical lifting article
It sets, when load is larger, suitable torque can be calculated according to the difference of each lifting article, prevent from sending out during lifting
The raw danger toppled.Torque can timely be reduced when load is smaller, the whole of crane is reduced and bear a heavy burden, energy can be saved
Source accelerates lifting speed to increase working efficiency.
The sensor module includes being respectively arranged on each supporting leg bottom and pressure sensor on suspension hook and being set to
Displacement sensor on the guide rail, several pressure sensors are communicated by communication module with the host computer respectively.It is logical
Sensor module acquisition corresponding information is crossed, device calculates actual torque size and provides foundation, the pressure sensing on suspension hook in order to control
Device can acquire the actual weight of lifting article, for host computer compared with pre-input value, real-time revision directive, so as to reality
When torque is corrected according to real load, the risk toppled during crane job is minimized.
The communication module includes wire communication module and wireless communication module, the wire communication module and the sensing
Device connects, and the wireless communication module is connect with the host computer, and the wire communication module is connect with the host computer；It is described
Communication module further includes central processing unit, and the wire communication module and the wireless communication module are separately connected central processing
Unit；The wire communication module includes RS232 communication interfaces, and the RS232 communication interfaces pass through RS232 cables and sensor
Component connects, and the wireless communication module includes wireless signal transmitter and modem, the wireless signal transmitter with
Modem connection, the modem are equipped with outer network interface, the modem by outer network interface with
The internet connection.Since number of sensors is more in sensor module, sensor module is acquired in the way of wire transmission
Signal, interfering with each other between the collected information of each sensor can be effectively prevent, keep the authenticity of data as possible,
The collected data of sensor are transmitted to host computer using central processing unit simultaneously so that the size smaller of data,
Efficiency of transmission is promoted, and is carried out data transmission using existing internet, large-scale dedicated communications network need not be additionally built,
Cost is reduced, and utilizes existing internet transmission data, the distance between host computer and crane relatively far apart, are convenient for remote
Journey manipulates.
The host computer includes computing unit, random access memory, display, alarm unit and data storage, it is described with
Machine memory is connect with the computing unit, and the random access memory is equipped with network interface, and the network interface is connect with outer net, the meter
Unit, data storage, display and alarm unit is calculated to connect with the computing unit respectively；
The computing unit includes microcontroller, and the microcontroller is separately connected the random access memory by I/O mouthfuls, data store
Device, display and alarm unit.Using microcontroller as computing unit, microcontroller is given（MCS-51 microcontrollers）It is equipped with random storage
Device（RAM）, the read or write speed between microcontroller and random access memory is fast, the speed of significant increase microcontroller processing data, from
And promote the sensitivity of entire controller.
The alarm unit includes power supply, electromagnetic switch and buzzer, and the electromagnetic switch passes through I/O mouthfuls and the monolithic
Machine connects, and the power supply, electromagnetic switch and buzzer are sequentially connected, and are formed into a loop.Electromagnetic switch and microcontroller pass through
Signal wire connect, by microcontroller control electromagnetic switch break-make, when alarm unit being needed to alarm, microcontroller send pulse signal to
Electromagnetic switch so that the circuit of entire alarm unit is connected, and buzzer obtains electric alarm, and electromagnetic switch may be used magnetic freeze mode and open
Close, do not need microcontroller send lasting pulse signal can be so that buzzer be persistently alarmed.
A kind of control method of arm-folding crane Weighting system, controls as follows：
1）System self-test
1.1）Host computer sends out detection signal,
1.2）The signal that sensor module feedback collection arrives,
1.3）Linear drive apparatus drives balance weight mechanism flexible,
1.4）Displacement sensor acquires the movement locus of balance weight mechanism；
2）Clump weight pre-adjustment
2.1）The weight for lifting by crane article is inputted into host computer, also just the weight for lifting by crane article is previously entered before operation, is prevented
Only cause danger during actually lifting.
2.2）Host computer sends out instruction according to the weight of input to straight line driving mechanism,
2.3）Linear drive apparatus drives balance weight mechanism flexible in place,
2.4）Displacement sensor acquires the movement locus of balance weight mechanism, and is uploaded to host computer, is matched by displacement sensor detection
The position of pouring weight, so as to ensure host computer can real-time control clump weight, can be calculated and be best suited according to actual condition
Actual solution can minimize error when clump weight adjustment, reduce what crane in operation process toppled
It is dangerous.
3）Clump weight is finely tuned in real time
3.1）Pressure sensor on suspension hook collects practical hoisting weight, is transferred to host computer,
3.2）Host computer compares the lifting Item Weight of practical hoisting weight and pre-input, is then gone to step when gap is excessive
3.3）, then continue to lift by crane when gap is little；
3.3）Continue to lift by crane if the value of pre-input is more than practical hoisting weight, if the value of pre-input is less than practical hoisting weight
Go to step 3.4）；
3.4）Clump weight position is adjusted,
3.41）Host computer calculates the difference between practical hoisting weight and pre-input value,
3.42）Host computer goes out the distance that clump weight should adjust by mathematic interpolation, and generates instruction,
3.43）Linear drive apparatus drives balance weight mechanism flexible in place,
3.44）Displacement sensor acquisition balance weight mechanism physical location is transferred to host computer,
3.45）Host computer compares the collected signal of displacement sensor with order, continues to lift by crane if meeting, if not meeting
Alarm unit is alarmed, and is finished.
When soft leg phenomenon occurs for one of supporting leg during lifting, work step is as follows：
a）Host computer numbers the pressure sensor on supporting leg,
b）When the soft leg of one of supporting leg, the pressure reduction that supporting leg is born, remaining supporting leg bears pressure rising,
c）Host computer judges the leg location of soft leg according to number,
d）Host computer instructs linear drives to turn driving balance weight mechanism, finds equalization point again,
e）Continue to lift by crane if finding equalization point, if the alarm of equalization point alarm unit can not be found, stops lifting, finish.
Claims (10)
1. a kind of arm-folding crane Weighting system, the arm-folding crane is set on carrier loader, and the carrier loader is equipped with several
To supporting leg, the arm-folding crane includes arm, and the head end of the arm is equipped with suspension hook, and the end of the arm is equipped with refitting
It sets, which is characterized in that the counter weight device includes holder and the balance weight mechanism that is movably arranged on the holder, and the holder is fixed
Set on the end of the arm of the arm-folding crane；
The balance weight mechanism includes clump weight and drives the telescoping mechanism of the clump weight movement, and the telescoping mechanism is set in institute
It states in rack, guide-track groove is equipped in the rack, guide rail, one end of the guide rail and the telescopic machine are engaged in the guide-track groove
Structure connects, and the other end of the guide rail fixes the clump weight.
2. a kind of arm-folding crane Weighting system according to claim 1, which is characterized in that the clump weight includes substrate
With several Weight plates on substrate, the substrate is fixed on the guide rail, and the substrate is equipped with several guide piles, institute
It states Weight plate position corresponding with the guide pile and is equipped with through-hole.
3. a kind of arm-folding crane Weighting system according to claim 2, which is characterized in that the telescoping mechanism includes solid
The bottom of fixed linear drive apparatus on the bracket, the guide rail is equipped with crossbeam, and the crossbeam is fixed with the guide rail to be connected
It connects, the drive shaft of the linear drive apparatus is fixedly connected with the crossbeam, and the linear drive apparatus drives the clump weight
It is slided along the sliding rail.
4. a kind of arm-folding crane Weighting system according to claim 1,2 or 3, which is characterized in that the counter weight device
Further include the controller for controlling the counter weight device, the controller includes sensor module and host computer, described upper
Machine is communicated by communication module with the host computer, and the telescoping mechanism receives the host computer by the communication module and sends out
Instruction.
5. a kind of arm-folding crane Weighting system according to claim 4, which is characterized in that the sensor module includes
It is respectively arranged on each supporting leg bottom and the pressure sensor on suspension hook and the displacement sensor on the guide rail, it is several
The pressure sensor is communicated by communication module with the host computer respectively.
6. a kind of arm-folding crane Weighting system according to claim 5, which is characterized in that the communication module includes
Line communication module and wireless communication module, the wire communication module are connect with the sensor, the wireless communication module with
The host computer connection, the wire communication module are connect with the host computer；
The communication module further includes central processing unit, and the wire communication module and the wireless communication module are separately connected
Central processing unit；
The wire communication module includes RS232 communication interfaces, and the RS232 communication interfaces pass through RS232 cables and sensor
Component connects, and the wireless communication module includes wireless signal transmitter and modem, the wireless signal transmitter with
Modem connection, the modem are equipped with outer network interface, the modem by outer network interface with
The internet connection.
7. a kind of arm-folding crane Weighting system according to claim 5, which is characterized in that the host computer includes calculating
Unit, random access memory, display, alarm unit and data storage, the random access memory are connect with the computing unit,
The random access memory is equipped with network interface, and the network interface connect with outer net, the computing unit, data storage, display and
Alarm unit is connect with the computing unit respectively；
The computing unit includes microcontroller, and the microcontroller is separately connected the random access memory by I/O mouthfuls, data store
Device, display and alarm unit.
8. a kind of arm-folding crane Weighting system according to claim 7, which is characterized in that the alarm unit includes electricity
Source, electromagnetic switch and buzzer, the electromagnetic switch are connect by I/O mouthfuls with the microcontroller, the power supply, electromagnetic switch and
Buzzer is sequentially connected, and is formed into a loop.
9. a kind of control method of the arm-folding crane counter weight device described in claim 4, which is characterized in that control as follows
System：
1）System self-test
1.1）Host computer sends out detection signal,
1.2）The signal that sensor module feedback collection arrives,
1.3）Linear drive apparatus drives balance weight mechanism flexible,
1.4）Displacement sensor acquires the movement locus of balance weight mechanism；
2）Clump weight pre-adjustment
2.1）The weight for lifting by crane article is inputted into host computer,
2.2）Host computer sends out instruction according to the weight of input to straight line driving mechanism,
2.3）Linear drive apparatus drives balance weight mechanism flexible in place,
2.4）Displacement sensor acquires the movement locus of balance weight mechanism, and is uploaded to host computer,
3）Clump weight is finely tuned in real time
3.1）Pressure sensor on suspension hook collects practical hoisting weight, is transferred to host computer,
3.2）Host computer compares the lifting Item Weight of practical hoisting weight and pre-input, is then gone to step when gap is excessive
3.3）, then continue to lift by crane when gap is little,
3.3）Continue to lift by crane if the value of pre-input is more than practical hoisting weight, if the value of pre-input is less than practical hoisting weight
Go to step 3.4）；
3.4）Clump weight position is adjusted,
3.41）Host computer calculates the difference between practical hoisting weight and pre-input value,
3.42）Host computer goes out the distance that clump weight should adjust by mathematic interpolation, and generates instruction,
3.43）Linear drive apparatus drives balance weight mechanism flexible in place,
3.44）Displacement sensor acquisition balance weight mechanism physical location is transferred to host computer,
3.45）Host computer compares the collected signal of displacement sensor with order, continues to lift by crane if meeting, if not meeting
Alarm unit is alarmed, and is finished.
10. a kind of control method of arm-folding crane Weighting system according to claim 9, which is characterized in that work as lifting
When soft leg phenomenon occurs for one of supporting leg in the process, work step is as follows：
a）Host computer numbers the pressure sensor on supporting leg,
b）When the soft leg of one of supporting leg, the pressure reduction that supporting leg is born, remaining supporting leg bears pressure rising,
c）Host computer judges the leg location of soft leg according to number,
d）Host computer instructs linear drives to turn driving balance weight mechanism, finds equalization point again,
e）Continue to lift by crane if finding equalization point, if the alarm of equalization point alarm unit can not be found, stops lifting, finish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810279688.XA CN108383018B (en) | 2018-04-01 | 2018-04-01 | Control method of counterweight system of folding arm crane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810279688.XA CN108383018B (en) | 2018-04-01 | 2018-04-01 | Control method of counterweight system of folding arm crane |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111332947A (en) * | 2020-03-16 | 2020-06-26 | 中国能源建设集团西北电力建设工程有限公司 | High-stability tower crane |
| CN112777499A (en) * | 2021-01-29 | 2021-05-11 | 三一汽车起重机械有限公司 | Counterweight self-dismounting device, crane and counterweight dismounting method |
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| CN201424350Y (en) * | 2009-06-19 | 2010-03-17 | 湖南省鹏翔车架有限公司 | Agricultural mobile crane |
| CN102249152A (en) * | 2011-06-01 | 2011-11-23 | 三一汽车起重机械有限公司 | Device and method for detecting movable counter weight of crane |
| CN202415028U (en) * | 2011-12-19 | 2012-09-05 | 齐齐哈尔轨道交通装备有限责任公司 | Crane |
| CN102491200A (en) * | 2011-12-22 | 2012-06-13 | 上海三一科技有限公司 | Movable counter weight structure of crawler crane and crane comprising movable counter weight structure |
| CN202414990U (en) * | 2012-01-01 | 2012-09-05 | 济宁四通工程机械有限公司 | Movable type liquid weight box |
| CN102633194A (en) * | 2012-04-06 | 2012-08-15 | 武桥重工集团股份有限公司 | Railway crane for high-speed railway rescue and construction |
| CN205892579U (en) * | 2016-07-06 | 2017-01-18 | 徐州市久发工程机械有限责任公司 | Fast set up tower crane's counter weight mechanism |
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| CN111332947A (en) * | 2020-03-16 | 2020-06-26 | 中国能源建设集团西北电力建设工程有限公司 | High-stability tower crane |
| CN111332947B (en) * | 2020-03-16 | 2021-08-10 | 中国能源建设集团西北电力建设工程有限公司 | High-stability tower crane |
| CN112777499A (en) * | 2021-01-29 | 2021-05-11 | 三一汽车起重机械有限公司 | Counterweight self-dismounting device, crane and counterweight dismounting method |
| CN112777499B (en) * | 2021-01-29 | 2023-05-02 | 三一汽车起重机械有限公司 | Counterweight self-dismounting device, crane and counterweight dismounting method |
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