CN102491205A - Anti-collision device of high-tension cable and crane - Google Patents
Anti-collision device of high-tension cable and crane Download PDFInfo
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- CN102491205A CN102491205A CN2011104098448A CN201110409844A CN102491205A CN 102491205 A CN102491205 A CN 102491205A CN 2011104098448 A CN2011104098448 A CN 2011104098448A CN 201110409844 A CN201110409844 A CN 201110409844A CN 102491205 A CN102491205 A CN 102491205A
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- collision device
- amplifying circuit
- steel rope
- signal amplifying
- crane
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Abstract
An anti-collision device of a high-tension cable and a crane comprises a steel rope, a metal conductor, a primary signal amplifying circuit, a weak signal amplifying circuit and a strong signal amplifying circuit. The anti-collision device is characterized in that the steel rope is a main steel rope of the crane and for craning heavy objects, and the steel rope is in friction connection with the metal conductor. The metal conductor is made into a cylindrical shape through a section of metal to be in friction connection with the steel rope, and the other end of the metal conductor is connected with the input end of the primary signal amplifying circuit. The output end of the primary signal amplification circuit is respectively connected with the input ends of the weak signal amplification circuit and the strong signal amplification circuit. The anti-collision device utilizes the steel rope as a sensor. When the steel rope approaches the high-tension cable, the anti-collision device whistles for alarming. When the steel rope enters a high-risk area, the anti-collision device whistles, automatically cuts off power and shuts down in forcing mode. The anti-collision device saves cost of the sensor, is simple in design structure, greatly reduces production cost, and is convenient, safe and reliable in manufacture and installation. However highly the tower crane is installed, the crane can be effectively controlled.
Description
Affiliated technical field
The invention belongs to building operation and use the vertical transportation machinery safety device, relate in particular to a kind of device that prevents that tower crane and high tension cord from bumping.
Background technology
Along with development of times, the change of social cityization, the propelling that villages within the city transform; The vertical transportation machinery that is widely used on the extensive construction site---tower crane tool (hereinafter to be referred as: tower crane); Directly affect the control of construction quality, safety, progress and cost, therefore in the priority project of our construction---the whole county town immigrant engineering of relocating, surplus the tower crane that on-site installation uses has 120; After the coordinated processing, exist with the bump tower crane of risk of high tension cord and also have 26.This shows to exist major safety risks, directly influence operating personnel's safety and construction speed.
We relocate the actual conditions of engineering site in management to the immigrant: the qualification of unit is hired out in audit; The operating personnel is carried out safety method to tell somebody what one's real intentions are; Maintain strict control over the pass of taking appointment with certificate, and the scope operation that job qualification certificate allowed of must not exceeding oneself; Reinforcement is to commander worker's supervision in place, and decides machine and decide the people; Guarantee the validity of interphone; People, machine be operation in spite of illness all; The operative employee relieves a sentry or supports the hilllock all must have the written record and telling somebody what one's real intentions are of relieving; Tangible warning mark or Warning light are set apart from 3 meters of high tension cord horizontal direction on the arm and it is carried out daily test; Operation must have enough illuminations near the high tension cord; The tower crane of coming off duty and having a rest or suspending use must be regained actuated small roadster and suspension hook is risen to the top.In addition, also to improve technically.
For ensureing the validity of rotary braking, set up the rotary braking emergency source of electrical power on the tower crane, prevent tower crane after outage since the effect and the high tension cord of inertia or wind-force bump.Through consulting discovery, existing crane anti-collision device mostly adopts means such as laser acquisition or ultrasonic transduter, all can not satisfy the needs of modern construction obviously, all has following deficiency:
(1), the cost of manufacturing is higher;
(2), all be to adopt specific sensor sampling, and be installed on the arm;
(3), when arm and the high tension cord discrepancy in elevation are big, insufficient sensitivity is accurately even lost efficacy.
The tower crane of using always on the building ground of China various places at present; Because the collision prevention device cost is high, insufficient sensitivity is accurate; Tower crane is hired out unit and is unwilling to invest outfit; Therefore mostly not with the device of tower crane or crane anti-collision, moreover do not find as yet at present and aim at tower crane or hoisting crane prevents to bump and the design-calculated device with high tension cord.
Summary of the invention
The objective of the invention is: in order to overcome the deficiency of above-mentioned prior art, design a kind of high tension cord and crane anti-collision device, simple in structure, with low cost, make and install and all make things convenient for and safe and reliable control setup.Mainly solve and prevent that tower crane and high tension cord from bumping: utilize steel cable as sensor, when steel cable during near high tension cord, the warning of blowing a whistle; When getting into high-risk zone, blow a whistle when reporting to the police, cut off the power supply automatically, shut down by force.
The present invention solves the technical scheme that its technical matters takes:
For achieving the above object, high tension cord provided by the invention and crane anti-collision device comprise: steel cable, metallic conductor, primary signal amplifying circuit, weak signal amplifying circuit, strong signal amplification circuit.It is characterized in that:
Described steel cable is the main steel rope that hoisting heavy that hoisting crane carries is used; Steel cable and metallic conductor carry out frictional connection, with steel cable as sensor, when steel cable gets into annular low-intensity magnetic field near high tension cord; Steel cable is just sensed the voltage signal of high tension cord, simultaneously voltage signal is passed to metallic conductor.
Described metallic conductor is to make cylindrical and the steel cable frictional connection with one section metallic, and the other end of metallic conductor is connected with the input end of primary signal amplifying circuit.
Described primary signal amplifying circuit is made up of electric capacity, variable resistance and FET, and the mouth of primary signal amplifying circuit is connected with the input end of weak signal amplifying circuit with strong signal amplification circuit respectively.
Described weak signal amplifying circuit is made up of resistance, electric capacity, diode, aerotron, IC and relay, and the open contact of relay mainly is to drive electric whistle to blow a whistle.
Described strong signal amplification circuit is made up of resistance, electric capacity, variable resistance, diode, aerotron and relay, and the normally closed contact of relay mainly is used for cutting off tower crane complete machine power supply.
The invention has the beneficial effects as follows:
(1), do not need specific sensor sampling, steel cable own on the tower crane is with regard to the double sensor of doing;
(2), except the expense of having saved sensor because project organization is simple, greatly reduce the cost of manufacturing.
(3), no matter tower crane be mounted to how high, as long as steel cable is near high tension cord just effectively.
Description of drawings
Fig. 1 is the circuit diagram of high tension cord and crane anti-collision device
Fig. 2 is the scheme drawing of steel cable near high tension cord electromagnetic field circle
Each beacon sign in the accompanying drawing:
T11 is a steel cable, and T12 is a metallic conductor, and R1-R4 is a resistance, and C1-C5 is an electric capacity; W1, W2 are variable resistances, and D1-D4 is a diode, and BG1 is a FET, and BG2-BG4 is an aerotron; IC is an IC, and Vcc is a positive source, and GND is a power cathode; T21 is annular low-intensity magnetic field, and T22 is annular high-intensity magnetic field, and T23 is a high tension cord.
The practical implementation method
High tension cord provided by the invention and crane anti-collision device comprise: steel cable T11, metallic conductor T12, primary signal amplifying circuit, weak signal amplifying circuit, strong signal amplification circuit like Fig. 1, shown in Figure 2, is characterized in that:
Described steel cable T11 is the main steel rope that hoisting heavy that hoisting crane carries is used; Steel cable T11 and metallic conductor T12 carry out frictional connection; With steel cable T11 as sensor; When steel cable T11 got into annular low-intensity magnetic field T21 near high tension cord T23, steel cable T11 just sensed the voltage signal of high tension cord T23, passed to metallic conductor T12 through frictional connection this voltage signal of naming a person for a particular job.
Described metallic conductor T12 makes cylindrical and steel cable T11 frictional connection with one section metallic, and the other end of metallic conductor T12 is connected with the end of the input end C1 of primary signal amplifying circuit.
Described primary signal amplifying circuit is made up of capacitor C 1, variable resistance W1 and FET BG1; The other end of C1 is connected with the grid of FET BG1, and the drain electrode of the mouth FET BG1 of primary signal amplifying circuit is connected with the base stage of the input end aerotron BG3 of 4 pin of the input end IC of weak signal amplifying circuit, strong signal amplification circuit, the end of variable resistance W1 respectively.The source electrode of FET BG1 is connected with power cathode GND, and the other end of variable resistance W1 is connected with positive source Vcc.
Described weak signal amplifying circuit is made up of resistance R 1-R3, capacitor C 2-C4, diode D1-D2, aerotron BG2, IC and relay J 1, and the open contact of relay J 1 mainly is to drive electric whistle to blow a whistle.One end of resistance R 1,8 pin of IC are connected with positive source Vcc; The other end of resistance R 1 is connected with 7 pin of IC, an end of resistance R 2 respectively; The other end of resistance R 2 is connected with 2 pin of IC and an end of 6 pin, capacitor C 2 respectively; 1 pin of the other end of capacitor C 2, IC is connected with power cathode GND, and 5 pin of IC are connected with an end of capacitor C 3, and the negative pole of the other end of capacitor C 3, capacitor C 4 is connected with power cathode GND; 3 pin of IC are connected with an end of resistance R 3; The other end of resistance R 3 is connected with the positive pole of diode D1, and the negative pole of diode D1 is connected with the positive pole of capacitor C 4, the base stage of aerotron BG2 respectively, and the emitter of aerotron BG2 is connected with power cathode GND; The collecting electrode of aerotron BG2 is connected with the positive pole of diode D2, an end of relay J 1 respectively, and the negative pole of diode D2, the other end of relay are connected with positive source Vcc.
Described strong signal amplification circuit is made up of resistance R 4, capacitor C 5, variable resistance W2, diode D3-D4, aerotron BG3-BG4 and relay J 2, and the normally closed contact of relay mainly is to be used for cutting off tower crane complete machine power supply.The negative pole of one end of resistance R 4, an end of relay J 2, diode D4 is connected with positive source Vcc; The other end of resistance R 4 is connected with the collecting electrode of aerotron BG3; The emitter of aerotron BG3 is connected with the positive pole of diode D3; The negative pole of diode D3 is connected with the positive pole of capacitor C 5, the end of variable resistance W2 respectively; The other end of the negative pole of the emitter of aerotron BG4, capacitor C 5, variable resistance W2 is connected with power cathode GND, and the adjustable side of variable resistance W2 is connected with the base stage of aerotron BG4, and the collecting electrode of aerotron BG4 is connected with the other end of relay J 2, the positive pole of diode D4 respectively.
Principle of work
Like Fig. 1, shown in Figure 2; When the steel cable T11 that the hoisting heavy that carries when hoisting crane is used got into annular low-intensity magnetic field T21 near high tension cord T23, steel cable T11 just sensed the voltage signal of high tension cord T23, passed to metallic conductor T12 through frictional connection this voltage signal of naming a person for a particular job; This voltage signal passes to BG1 through behind the C1; When BG1 received voltage signal, leakage-voltage between source electrodes increased, and the drain electrode of BG1 becomes high potential by low voltage and exports to IC; The IC output HIGH voltage makes the BG2 conducting drive relay J 1 action, drives electric whistle and blows a whistle.
When steel cable T11 when annular low-intensity magnetic field T21 gets into annular high-intensity magnetic field T22; The high potential of the drain electrode output of BG1 is stronger, makes also conducting of BG3, is enough to make BG4 to drive relay J 2 actions; The normally closed contact of relay J 2 cuts off the power supply of tower crane; Make tower crane cut off the power supply automatically, shut down by force, reach and prevent that steel cable T11 from moving on and high tension cord T23 bumps, thereby reach the purpose of high tension cord and crane anti-collision.
Conclusion
Method of attachment from figure can find out, we adopt IC is 555 time base circuits.
The steel cable that utilization might bump with high tension cord is as sensor, when steel cable during near high tension cord, and the warning of blowing a whistle; When steel cable continues near the high-risk zone of high tension cord entering, to blow a whistle when reporting to the police, outage automatically, shutdown by force let navigating mate know and are not to have a power failure, but promptly will run into high tension cord.
Because very risky near the high tension cord, do not carry out sufficient preparation, please not want and near high tension cord, do this experiment easily, otherwise can cause the serious consequence that can't estimate.
Claims (3)
1. high tension cord and crane anti-collision device comprise: steel cable, metallic conductor, primary signal amplifying circuit, weak signal amplifying circuit, strong signal amplification circuit.It is characterized in that: described steel cable is the main steel rope that hoisting heavy that hoisting crane carries is used, and steel cable and metallic conductor carry out frictional connection.
2. high tension cord according to claim 1 and crane anti-collision device is characterized in that: described metallic conductor is to make cylindrical and the steel cable frictional connection with one section metallic, and the other end of metallic conductor is connected with the input end of primary signal amplifying circuit.
3. high tension cord according to claim 1 and crane anti-collision device; It is characterized in that: described primary signal amplifying circuit is made up of electric capacity, variable resistance and FET, and the mouth of primary signal amplifying circuit is connected with the input end of weak signal amplifying circuit with strong signal amplification circuit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104098448A CN102491205A (en) | 2011-12-12 | 2011-12-12 | Anti-collision device of high-tension cable and crane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104098448A CN102491205A (en) | 2011-12-12 | 2011-12-12 | Anti-collision device of high-tension cable and crane |
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| CN102491205A true CN102491205A (en) | 2012-06-13 |
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| CN2011104098448A Pending CN102491205A (en) | 2011-12-12 | 2011-12-12 | Anti-collision device of high-tension cable and crane |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104571143A (en) * | 2014-12-04 | 2015-04-29 | 长沙中联消防机械有限公司 | Engineering machinery, and control system, method and device of arm support of engineering machinery |
| CN106300192A (en) * | 2016-09-23 | 2017-01-04 | 青岛智享专利技术开发有限公司 | A kind of electric power solar powered electric pole electric wire anticollision device, collision-prevention device |
| CN107651587A (en) * | 2017-10-27 | 2018-02-02 | 哈尔滨理工大学 | A kind of device and its control method for reducing tower crane sensing high voltage harm |
| CN112875524A (en) * | 2021-02-07 | 2021-06-01 | 国网河北省电力有限公司石家庄供电分公司 | Crane top electric shock prevention protective cover for electric power construction site |
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| JPS5349995A (en) * | 1976-10-18 | 1978-05-06 | Hokushin Electric Works | Audio high voltage warning device |
| JPS5785790A (en) * | 1980-11-15 | 1982-05-28 | Kato Giichirou | High-voltage alarm device for lightning arresting and short prevention of crane car |
| US4649375A (en) * | 1985-10-31 | 1987-03-10 | Fmc Corporation | Apparatus for detecting power lines |
| JPH06255989A (en) * | 1993-03-04 | 1994-09-13 | Taisei Corp | Overhead wire approach warning device |
| CN201172602Y (en) * | 2008-03-26 | 2008-12-31 | 江苏省电力公司南京供电公司 | Crane near-electricity alarming safety installation |
| CN201864499U (en) * | 2010-11-29 | 2011-06-15 | 江苏省电力公司句容市供电公司 | Electricity-approaching security alarming crane |
| CN202358855U (en) * | 2011-12-12 | 2012-08-01 | 云南建工第五建设有限公司 | Anti-collision device of high-tension line and crane |
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2011
- 2011-12-12 CN CN2011104098448A patent/CN102491205A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5349995A (en) * | 1976-10-18 | 1978-05-06 | Hokushin Electric Works | Audio high voltage warning device |
| JPS5785790A (en) * | 1980-11-15 | 1982-05-28 | Kato Giichirou | High-voltage alarm device for lightning arresting and short prevention of crane car |
| US4649375A (en) * | 1985-10-31 | 1987-03-10 | Fmc Corporation | Apparatus for detecting power lines |
| JPH06255989A (en) * | 1993-03-04 | 1994-09-13 | Taisei Corp | Overhead wire approach warning device |
| CN201172602Y (en) * | 2008-03-26 | 2008-12-31 | 江苏省电力公司南京供电公司 | Crane near-electricity alarming safety installation |
| CN201864499U (en) * | 2010-11-29 | 2011-06-15 | 江苏省电力公司句容市供电公司 | Electricity-approaching security alarming crane |
| CN202358855U (en) * | 2011-12-12 | 2012-08-01 | 云南建工第五建设有限公司 | Anti-collision device of high-tension line and crane |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104571143A (en) * | 2014-12-04 | 2015-04-29 | 长沙中联消防机械有限公司 | Engineering machinery, and control system, method and device of arm support of engineering machinery |
| CN106300192A (en) * | 2016-09-23 | 2017-01-04 | 青岛智享专利技术开发有限公司 | A kind of electric power solar powered electric pole electric wire anticollision device, collision-prevention device |
| CN107651587A (en) * | 2017-10-27 | 2018-02-02 | 哈尔滨理工大学 | A kind of device and its control method for reducing tower crane sensing high voltage harm |
| CN112875524A (en) * | 2021-02-07 | 2021-06-01 | 国网河北省电力有限公司石家庄供电分公司 | Crane top electric shock prevention protective cover for electric power construction site |
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Application publication date: 20120613 |