CN102616686A - Electronic limiting control system for lifting height of tower crane hook - Google Patents
Electronic limiting control system for lifting height of tower crane hook Download PDFInfo
- Publication number
- CN102616686A CN102616686A CN2012100643596A CN201210064359A CN102616686A CN 102616686 A CN102616686 A CN 102616686A CN 2012100643596 A CN2012100643596 A CN 2012100643596A CN 201210064359 A CN201210064359 A CN 201210064359A CN 102616686 A CN102616686 A CN 102616686A
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- control system
- tower crane
- suspension hook
- displacement inductive
- inductive switch
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Abstract
The invention discloses an electronic limiting control system for the lifting height of a tower crane hook. The electronic limiting control system comprises a plurality of wireless electronic displacement inductive switches and an electrical control system, wherein the wireless electronic displacement inductive switches are arranged on a trolley for mounting a hook on a tower crane in parallel and are used for sensing the lifting height of the hook; in addition, the wireless electronic displacement inductive switches are provided with special power supplies; the electrical control system is wirelessly communicated with the wireless electronic displacement inductive switches; and the electrical control system is used for controlling a general distribution box of the tower crane and controlling a hook motor through the general distribution box. The electronic limiting control system disclosed by the invention has remarkable advantages of accuracy and reliability in control and convenience in operation; and tower crane accidents can be reduced.
Description
Technical field
The present invention relates to a kind of tower crane suspension hook lifting altitude electronic limit control system, belonged to the vehicle for construction field.
Background technology
In recent years, tower crane tool manufacture has kept average annual growth rate more than 30%.Safety misadventure is along with the ever-increasing while of tower machine quantity also cumulative year after year, and wherein because of height under hook safety limiting device failure accidents occurs repeatedly, therefore the tower machine safety misadventure that causes of problem is about 5% according to incompletely statistics.The spacing employing mechanical drive mode of present level needs releasing earlier highly spacing before the each jacking of tower machine, after waiting to accomplish jacking; Need carry out highly spacing adjusting again; The operator often because of certain factor cause jacking to finish after wiring in time or the adjustment highly spacing, cause suspension hook and tower machine forearm to bump the lighter's damage equipment; Weight person causes the disastrous accident, brings economic loss.If adopt induction type high safety limiting device,, reduce the generation of tower machine accident with thoroughly solving the potential safety hazard that suspension hook lifting altitude aspect exists.
Summary of the invention
In order to solve the effective control problem of tower crane suspension hook lifting altitude; Improve the safety performance of tower crane; The invention provides a kind of tower crane suspension hook lifting altitude electronic limit control system; This system has precise control, reliable, and easy to operate clear superiority can reduce the generation of tower machine accident.
In order to realize the present invention, the technical scheme that the present invention taked is following:
Tower crane suspension hook lifting altitude electronic limit control system; It comprises wireless electron displacement inductive switch and electric control system; The a plurality of parallel connections of described wireless electron displacement inductive switch are arranged on tower crane and install on the dolly of suspension hook; Be used for responding to the suspension hook lifting altitude; And this wireless electron displacement inductive switch is provided with special-purpose power supply: described electric control system and wireless electron displacement inductive switch are taked wireless telecommunications, the consumer unit of electric control system control tower crane, and through consumer unit control suspension hook electrode.
Above-mentioned tower crane suspension hook lifting altitude electronic limit control system, described wireless electron displacement inductive switch is the infrared induction trigger-type.
The present invention realizes the effective control of tower crane suspension hook lifting altitude like this:
When the tower crane suspension hook rises entering wireless electron displacement inductive switch induction range; Wireless electron displacement inductive switch triggers, and sends to electric institute control system to stop rising signals, stops rising signals after the electric control system conversion; Assign instruction and give the consumer unit of tower crane; By consumer unit control suspension hook motor, stop suspension hook and hoist, thereby reach highly spacing purpose.
Need to prove as long as suspension hook gets in the wireless electron displacement inductive switch induction zone; The suspension hook motor is in off-state all the time, and suspension hook can not rise, but the decline circuit of lifting motor can be connected through operating handle; In other words; At this moment, suspension hook can only descend and can not rise, and realizes accessible operation fully.
Positive effect of the present invention is: the height that adopts a plurality of wireless electron displacement inductive switch parallel connection induction suspension hooks to hoist; The induction of wireless electron displacement inductive switch is sensitive, is swift in response, and is easy to operate; The suspension hook collision can be effectively prevented, the safety performance of tower crane can be significantly improved.
Figure of description
Fig. 1 is a tower crane suspension hook lifting altitude electronic limit control system scheme drawing of the present invention;
Fig. 2 is a tower crane suspension hook lifting altitude electronic limit control system schematic diagram of the present invention.
The specific embodiment
Below in conjunction with embodiment the present invention is carried out detailed elaboration:
As shown in the figure; Tower crane suspension hook lifting altitude electronic limit control system; It comprises wireless electron displacement inductive switch 1, power supply 2 and electric control system 3; More than 1 parallel connection of described wireless electron displacement inductive switch is arranged on tower crane and installs on the dolly of suspension hook 4, and this wireless electron displacement inductive switch 1 is provided with special-purpose power supply 2; Described electric control system 3 is taked wireless telecommunications with wireless electron displacement inductive switch 1, the consumer unit 5 of electric control system 3 control tower cranes, and through consumer unit 5 control suspension hook motors 6, suspension hook motor 6 is controlled hoisting of suspension hooks 4.
As shown in the figure, when tower crane suspension hook 4 rose entering wireless electron displacement inductive switch 1 induction range, wireless electron displacement inductive switch 1 triggered; Send to electric control system 3 and to stop rising signals; Stop rising signals after electric control system 3 conversions, assign the consumer unit 5 that tower crane is given in instruction, by consumer unit 5 control suspension hook motors 6; Stop suspension hook 4 and hoist, thereby reach the spacing purpose of suspension hook 4 lifting altitudes.
Claims (2)
1. tower crane suspension hook lifting altitude electronic limit control system; It comprises wireless electron displacement inductive switch, power supply and electric control system, it is characterized in that: a plurality of parallel connections of described wireless electron displacement inductive switch are arranged on tower crane and install on the dolly of suspension hook; Described electric control system and wireless electron displacement inductive switch are taked wireless telecommunications, the consumer unit of electric control system control tower crane, and through consumer unit control suspension hook motor.
2. tower crane suspension hook lifting altitude electronic limit control system according to claim 1, tool is characterised in that: described wireless electron displacement inductive switch is provided with special-purpose power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100643596A CN102616686A (en) | 2012-03-13 | 2012-03-13 | Electronic limiting control system for lifting height of tower crane hook |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100643596A CN102616686A (en) | 2012-03-13 | 2012-03-13 | Electronic limiting control system for lifting height of tower crane hook |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102616686A true CN102616686A (en) | 2012-08-01 |
Family
ID=46556977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100643596A Pending CN102616686A (en) | 2012-03-13 | 2012-03-13 | Electronic limiting control system for lifting height of tower crane hook |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102616686A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103991793A (en) * | 2014-05-27 | 2014-08-20 | 中联重科股份有限公司 | Height limitator, operation control system, method and device and crane |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5263660A (en) * | 1990-08-17 | 1993-11-23 | Iowa Mold Tooling Company, Inc. | Anti-two block device |
| DE102006025002A1 (en) * | 2006-05-30 | 2007-12-06 | Pat Gmbh | Mobile or stationary working device with telescopic boom elements whose position is detected by RFID technology |
| WO2009089628A8 (en) * | 2008-01-16 | 2009-10-22 | Load Systems International Inc. | Upper hoist limiter |
| CN201722078U (en) * | 2010-07-20 | 2011-01-26 | 中铁一局集团有限公司 | Cable crane lifting height limit position protector |
| CN102060238A (en) * | 2011-01-21 | 2011-05-18 | 刘鸿 | Intelligent safety limit control system of hoisting equipment and working method thereof |
| CN202144426U (en) * | 2011-05-25 | 2012-02-15 | 山东宝世达电缆有限公司 | Protector for safety of traveling crane |
-
2012
- 2012-03-13 CN CN2012100643596A patent/CN102616686A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5263660A (en) * | 1990-08-17 | 1993-11-23 | Iowa Mold Tooling Company, Inc. | Anti-two block device |
| DE102006025002A1 (en) * | 2006-05-30 | 2007-12-06 | Pat Gmbh | Mobile or stationary working device with telescopic boom elements whose position is detected by RFID technology |
| WO2009089628A8 (en) * | 2008-01-16 | 2009-10-22 | Load Systems International Inc. | Upper hoist limiter |
| CN201722078U (en) * | 2010-07-20 | 2011-01-26 | 中铁一局集团有限公司 | Cable crane lifting height limit position protector |
| CN102060238A (en) * | 2011-01-21 | 2011-05-18 | 刘鸿 | Intelligent safety limit control system of hoisting equipment and working method thereof |
| CN202144426U (en) * | 2011-05-25 | 2012-02-15 | 山东宝世达电缆有限公司 | Protector for safety of traveling crane |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103991793A (en) * | 2014-05-27 | 2014-08-20 | 中联重科股份有限公司 | Height limitator, operation control system, method and device and crane |
| CN103991793B (en) * | 2014-05-27 | 2016-03-30 | 中联重科股份有限公司 | Height limitator, operation control system, method, device and hoisting crane |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120801 |