CN208327167U - Novel tower crane moment safety control system - Google Patents
Novel tower crane moment safety control system Download PDFInfo
- Publication number
- CN208327167U CN208327167U CN201820905327.7U CN201820905327U CN208327167U CN 208327167 U CN208327167 U CN 208327167U CN 201820905327 U CN201820905327 U CN 201820905327U CN 208327167 U CN208327167 U CN 208327167U
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- tower crane
- amplitude
- luffing
- control system
- run
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Abstract
The utility model discloses a kind of novel tower crane moment safety control systems, including tower crane control system and the manipulation device being attached thereto and display device；Wherein, manipulation device is for giving tower crane run action control signal；Display device is for showing tower crane operating parameter, parameter setting and display alarm information；The tower crane control system includes control device, lift controlling system and luffing control system；Control device is used to receive the tower crane run action control signal of control device and issues run action control command；Lift controlling system is connected with the control device, for controlling tower crane lifting job run；Luffing control system is connected with the control device, for controlling tower crane luffing job run.According to the hoist weight that current of electric obtains and the real-time moment values of suspension hook operation amplitude acquisition tower crane work that amplitude detecting device obtains is detected, realize that the detection accuracy of moment values is high, stability is good, at low cost.
Description
Technical field
The utility model relates to tower crane technical fields, and in particular to a kind of novel tower crane moment safety control system.
Background technique
Mounting torque proving ring mechanical switching point (most 4 inspections in tower crane mechanism are generallyd use in tower crane industry at present
Measuring point) tower crane work torque is detected, and speed limit switching and limitation stopping are carried out to tower crane run action, but in this way can not
Torque real time data is obtained, operator can not be intuitively visual, can not make the safety operation of anticipation in advance.
The prior art uses the installation bearing pin sensor on lifting capacity pulley to detect hanging object weight, obtains hoist weight
Measure real time data.The range value of suspension hook real time execution is obtained using amplitude sensor simultaneously.Control device according to hoist weight and
Suspension hook range value calculates real-time working moment values.In the tower crane work run action security control to different torques, use
Several torque threshold levels limit the work run action of the tower crane under different torques respectively.Therefore will appear following technology to lack
Point:
1. precision with bearing pin sensor detection hoist weight is low, stability is poor, at high cost problem.
2. limiting the tower crane run action under different torques respectively using several torque threshold levels, there are torque limits
Point is readily removable to remove problem.
3. obtaining real-time working moment values according to hoist weight and suspension hook range value using control device, that there are precision is low,
Poor, the at high cost problem of stability.
Summary of the invention
Insufficient according to prior art, the utility model provides a kind of novel tower crane moment safety control system and method.
The utility model is realized by following technical scheme:
A kind of novel tower crane moment safety control system including tower crane control system and the manipulation device being attached thereto and is shown
Showing device；Wherein, manipulation device is for giving tower crane run action control signal；Display device is for showing tower crane operation ginseng
Number, parameter setting and display alarm information；
The tower crane control system includes:
Control device, the tower crane run action for receiving control device control signal and issue run action control life
It enables；
Lift controlling system is connected with the control device, for controlling tower crane lifting job run；And
Luffing control system is connected with the control device, for controlling tower crane luffing job run.
Preferably, the lift controlling system includes:
Raising frequency-conversion drive apparatus is connected with the control device, for executing control command, controls the operation of motor
And detection motor working current；
Hoisting motor is connected with the raising frequency-conversion drive apparatus, provides load running power, drives load running；
Raising encoder is connected with the hoisting motor, for detecting the speed of service of motor；
Lifting speed reducing is connected with the hoisting motor of stating, is power transmission mechanism, will be electric according to corresponding reduction ratio
The output speed and torque transmission of machine are to load；
Hoisting drum is connected with the lifting speed reducing, is used for retractable volume hoist rope；
Suspension hook is connected with the hoist rope, the effect for suspended load.
Preferably, the raising frequency-conversion drive apparatus uses frequency converter.
Preferably, it is equipped with raising line system pulley between suspension hook and hoist rope, for winding supporting steel-cable, rises
To the effect in the direction and size for changing power.
Preferably, the luffing control system includes:
Luffing driving device is connected with the control device, for executing control command and controlling the fortune of luffing motor
Row；
Luffing motor is connected with the luffing driving device, for driving amplitude variation trolley to run, while suspension hook being driven to exist
Amplitude side is run up；
Amplitude-change speed reducer is connected with the luffing motor, is power transmission mechanism；
Amplitude-changing drum is connected with institute amplitude-change speed reducer, is used for retractable volume variable-amplitude steel wire rope；
Amplitude variation trolley, for driving suspension hook to run up in amplitude side；
Luffing detection device leads to luffing volume and is connected, sets the amplitude positions for detecting suspension hook operation.
Preferably, the luffing detection device uses amplitude sensor.
Preferably, variable amplitude rope system pulley is equipped between amplitude variation trolley and variable-amplitude steel wire rope, for winding supporting steel wire
Rope plays the role of the direction and the size that change power.
The utility model proposes a kind of novel tower crane moment method of controlling security and system, by bus by frequency converter, aobvious
Display screen and control device are integrated, using frequency converter to the hoisting motor speed of service carry out control and to hoisting motor operating current into
Row real-time detection, control device are calculated according to the current of electric of real-time detection in conjunction with preset electric current and weight corresponding relationship model
Method, to obtain hoist weight.The range value of suspension hook real time execution is obtained using amplitude sensor simultaneously.Control device is according to hanging
Heavy amount and suspension hook range value calculate real-time working moment values.Therefore it has several advantages that
1. weight detecting is realized by the method that frequency converter detects motor working current, without bearing pin sensor, from
And avoid the problem that bearing pin sensor bring detection accuracy is low, stability is poor, at high cost.
2. the suspension hook operation amplitude that the hoist weight and amplitude detecting device that are obtained according to detection current of electric obtain obtains
The real-time moment values of tower crane work realize that the detection accuracy of moment values is high, stability is good, at low cost.
3. by bus communicatively by control device and the system integration of raising frequency-conversion drive apparatus, and passing through raising
The hoisting motor electric current of frequency converter real-time detection obtains the suspension hook real time execution range value of hoist weight and amplitude sensor detection
Real-time working moment values are obtained, anti-dismounting may be implemented.When removing, control device control system stops working and alarms.
Detailed description of the invention
Fig. 1 is the tower crane moment safety control system block diagram of the utility model.
Specific embodiment
Below in conjunction with attached drawing, the utility model is further described by specific embodiment.
As shown in Figure 1, the utility model is by control device 1, control device 2, raising frequency-conversion drive apparatus 4, display device
3, raising encoder 5, hoisting motor 6, lifting speed reducing 7, hoist brake 12, hoisting drum 8, hoist rope 9, raising line
It is pulley 10, suspension hook 11, luffing driving device 13, luffing motor 14, amplitude-change speed reducer 15, amplitude-changing drum 16, variable-amplitude steel wire rope
18, variable amplitude rope system pulley 19, luffing detection device 17, amplitude variation trolley 20 form.
Control device 1 is for giving tower crane run action control signal；Control device 2 is the core of control system, is used for
It receives the tower crane run action control signal of control device and issues run action control command；Raising frequency-conversion drive apparatus 4 is used
In executing control command, the operation and detection motor working current of motor are controlled；Display device 3 is for showing tower crane operation ginseng
Number, parameter setting and display alarm information；Raising encoder 5 is used to detect the speed of service of motor；Hoisting motor 6 provides load
Power is run, load running is driven；Hoist brake 12 is for braking hoisting motor 6；Lifting speed reducing 7 is that power passes
Up to mechanism, according to corresponding reduction ratio by the output speed of motor and torque transmission to load；Hoisting drum 8 is rolled for folding and unfolding
Rise wirerope 9；Hoist rope 9 plays the work that traction suspension hook moves up and down for connecting hoisting drum 8 and suspension hook 11
With；Raising line system pulley 10 plays the role of the direction and the size that change power for winding supporting steel-cable；Suspension hook 11 is for hanging
The effect of carry lotus.Luffing driving device 13, for executing control command and controlling the operation of luffing motor；Luffing motor 14 is used
In driving amplitude variation trolley operation, while suspension hook being driven to run up in amplitude side；Amplitude-change speed reducer 15 is power transmission mechanism；Become
Width reel 16 is used for retractable volume variable-amplitude steel wire rope；Variable-amplitude steel wire rope 18 is for having connected amplitude-changing drum 16 with small 20 vehicle of luffing
Come, realizes that reel operation drives amplitude variation trolley 20 to run；Variable amplitude rope system pulley 19 plays change power for winding supporting steel-cable
Direction and size effect；Amplitude variation trolley 20 is for driving suspension hook 11 to run up in amplitude side；Luffing detection device 17 is used
In the amplitude positions that detection suspension hook 11 is run.
When control device 1 gives tower crane run action control signal, control device 2 is according to the raising operation control received
Signal processed controls 6 athletic performance of hoisting motor, drives suspension hook 11 to sling load, raising frequency-conversion drive apparatus 4 is centainly at the uniform velocity being transported
Motor real-time working electric current is detected during the hovering of capable or zero-speed, and current detection value is sent in a manner of bus communication
To control device 2.Control device 2 is calculated according to detection current value by preset electric current and weight corresponding relationship model algorithm
Hoist load weight.When control device 2 receives luffing control run signal, jib lubbing mechanism run action is controlled, is led to simultaneously
It crosses luffing detection device 17 and detects the amplitude positions that suspension hook 11 is run.Meanwhile control device 2 is obtained according to weight value and range value
Real-time working moment values.When real-time working moment values are more than level-one speed limit threshold values, control device 2 controls luffing and slows down outward fortune
Row；When real-time working torque system is more than secondary limit threshold values, control device 2 controls luffing and runs stopping outward.Pass through raising
The hoisting motor electric current of frequency converter real-time detection obtains the suspension hook real time execution range value of hoist weight and amplitude sensor detection
Real-time working moment values are obtained, realize tamper.When removing, control system stops working and alarms.
The utility model proposes a kind of novel tower crane moment method of controlling security and system, by bus by raising frequency conversion
Device, display screen and control device are integrated, carry out control to the hoisting motor speed of service using raising frequency converter and work motor
Electric current is measured in real time, and control device is according to the current of electric of real-time detection, in conjunction with preset electric current and weight corresponding relationship
Model algorithm, to obtain hoist weight.The range value of suspension hook real time execution is obtained using amplitude sensor simultaneously.Control device
Real-time working moment values are calculated according to hoist weight and suspension hook range value.Therefore it has several advantages that
1. weight detecting is realized by the method that frequency converter detects motor working current, without bearing pin sensor, from
And avoid the problem that bearing pin sensor bring detection accuracy is low, stability is poor, at high cost.
2. the suspension hook operation amplitude that the hoist weight and amplitude detecting device that are obtained according to detection current of electric obtain obtains
The real-time moment values of tower crane work realize that the detection accuracy of moment values is high, stability is good, at low cost.
3. by bus communicatively by control device and the system integration of raising frequency-conversion drive apparatus, and passing through raising
The hoisting motor electric current of frequency converter real-time detection obtains the suspension hook real time execution range value of hoist weight and amplitude sensor detection
Real-time working moment values are obtained, anti-dismounting may be implemented.When removing, control device control system stops working and alarms.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (7)
1. a kind of novel tower crane moment safety control system, it is characterised in that: including tower crane control system and the behaviour being attached thereto
Vertical device and display device；
Wherein, manipulation device is for giving tower crane run action control signal；Display device is for showing tower crane operating parameter, ginseng
Number setting and display alarm information；
The tower crane control system includes:
Control device, the tower crane run action for receiving control device control signal and issue run action control command；
Lift controlling system is connected with the control device, for controlling tower crane lifting job run；
And
Luffing control system is connected with the control device, for controlling tower crane luffing job run.
2. a kind of novel tower crane moment safety control system according to claim 1, it is characterised in that: the lift control
System includes:
Raising frequency-conversion drive apparatus is connected with the control device, for executing control command, controls the operation and inspection of motor
Measured motor operating current；
Hoisting motor is connected with the raising frequency-conversion drive apparatus, provides load running power, drives load running；
Raising encoder is connected with the hoisting motor, for detecting the speed of service of motor；
Lifting speed reducing is connected with the hoisting motor of stating, is power transmission mechanism, according to corresponding reduction ratio by motor
Output speed and torque transmission are to load；
Hoisting drum is connected with the lifting speed reducing, is used for retractable volume hoist rope；
Suspension hook is connected with the hoist rope, the effect for suspended load.
3. a kind of novel tower crane moment safety control system according to claim 2, it is characterised in that: the raising frequency conversion
Driving device uses frequency converter.
4. a kind of novel tower crane moment safety control system according to claim 2, it is characterised in that: in suspension hook and raising
It is equipped with raising line system pulley between wirerope, for winding supporting steel-cable, plays the role of the direction and the size that change power.
5. a kind of novel tower crane moment safety control system according to claim 1, it is characterised in that: the luffing control
System includes:
Luffing driving device is connected with the control device, for executing control command and controlling the operation of luffing motor；
Luffing motor is connected with the luffing driving device, for driving amplitude variation trolley to run, while driving suspension hook in amplitude
Side is run up；
Amplitude-change speed reducer is connected with the luffing motor, is power transmission mechanism；
Amplitude-changing drum is connected with institute amplitude-change speed reducer, is used for retractable volume variable-amplitude steel wire rope；
Amplitude variation trolley, for driving suspension hook to run up in amplitude side；
Luffing detection device leads to luffing volume and is connected, sets the amplitude positions for detecting suspension hook operation.
6. a kind of novel tower crane moment safety control system according to claim 5, it is characterised in that: the luffing detection
Device uses amplitude sensor.
7. a kind of novel tower crane moment safety control system according to claim 5, it is characterised in that: amplitude variation trolley with
It is equipped with variable amplitude rope system pulley between variable-amplitude steel wire rope, for winding supporting steel-cable, plays the work in the direction and size that change power
With.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820905327.7U CN208327167U (en) | 2018-06-12 | 2018-06-12 | Novel tower crane moment safety control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820905327.7U CN208327167U (en) | 2018-06-12 | 2018-06-12 | Novel tower crane moment safety control system |
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| Publication Number | Publication Date |
|---|---|
| CN208327167U true CN208327167U (en) | 2019-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820905327.7U Expired - Fee Related CN208327167U (en) | 2018-06-12 | 2018-06-12 | Novel tower crane moment safety control system |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108529456A (en) * | 2018-06-12 | 2018-09-14 | 徐州建机工程机械有限公司 | A kind of novel tower crane moment safety control system and method |
| CN110207756A (en) * | 2019-06-26 | 2019-09-06 | 江苏航运职业技术学院 | A kind of harbour machinery control system multi-channel analog signal acquisition technique equipment |
-
2018
- 2018-06-12 CN CN201820905327.7U patent/CN208327167U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108529456A (en) * | 2018-06-12 | 2018-09-14 | 徐州建机工程机械有限公司 | A kind of novel tower crane moment safety control system and method |
| CN110207756A (en) * | 2019-06-26 | 2019-09-06 | 江苏航运职业技术学院 | A kind of harbour machinery control system multi-channel analog signal acquisition technique equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190104 Termination date: 20190612 |