CN104176662A - Movable-type crane support unbalance early-warning device - Google Patents
Movable-type crane support unbalance early-warning device Download PDFInfo
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- CN104176662A CN104176662A CN201310190780.6A CN201310190780A CN104176662A CN 104176662 A CN104176662 A CN 104176662A CN 201310190780 A CN201310190780 A CN 201310190780A CN 104176662 A CN104176662 A CN 104176662A
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- unbalance
- resistance
- transparent vessel
- warning device
- movable
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Abstract
The invention discloses a movable-type crane support unbalance early-warning device. The movable-type crane support unbalance early-warning device comprises two unbalance trigger units, a connection flexible pipe and an acousto-optic warning device. Hooks of the unbalance trigger units are arranged at the top end of an adjustment frame, the bottom of the adjustment frame is provided with screw holes, adjustment screws are screwed in the screw holes at the bottom end of the adjustment frame, tail ends of the adjustment screws are movably connected to the top ends of transparent containers, the adjustment screws are screwed in locking nuts, adjustable contact pins are respectively arranged at the top ends of the transparent containers and stretch into the transparent containers, the top ends of the transparent containers are provided with through holes and the bottom ends of the transparent containers are provided with communication openings and electrodes, a conductive liquid is injected into the transparent containers, the connection flexible pipe connects the communication openings of the transparent containers of the two unbalance trigger units, and an input end of the acousto-optic warning device is connected respectively to the adjustable contact pins and the electrodes of the two unbalance trigger units. The movable-type crane support unbalance early-warning device can give effective and accurate early warning in movable-type crane operation, prevents rolling-over accident caused by ground pits produced by pressure, and guarantees reliable and safe operation of a movable-type crane.
Description
Technical field
The present invention relates to a kind of movable crane and support unbalance prior-warning device.
Background technology
Motor-driven, flexible, the convenient feature of implementing hoisting operation that movable crane has, thereby be used widely in hoisting operation, general movable crane load has tens tons to tons up to a hundred, and even the super large power hoisting crane of kiloton, four supporting legs that common movable crane is propped front and back can be implemented hoisting operation; In widespread use, also there is certain safety hazard in movable crane, safety misadventure is frequent, be mainly that movable crane overload loss of stability tipping backwards causes, also some reason is because movable crane ground supports lack of equilibrium causes; For avoiding accident to occur, general hoisting crane is provided with limiter of moment, rising end position killer, radius indicator, level indicator, prevents arm tilting device, supporting leg retraction blocking device, turning positioning apparatus, the safety devices such as warning device fall back, some cost of such safety device is higher, installation is complicated, and some does not play good forewarning function; For unbalance overthrow accident; conventionally also rely on driver's operating experience; need be according to the soft degree on ground and can bearing force; regulate the support of movable crane supporting leg by inspectional analysis; press to avoid ground the generation that falls into tipping backwards accident; therefore only rely on operating experience to have certain uncertain factor, affected reliable, the safe operation of movable crane.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of movable crane and supports unbalance prior-warning device, utilize that this device can unbalancely be made effectively supporting in movable crane operational process, early warning accurately, avoid ground to press the generation that falls into tipping backwards accident, ensured reliable, the safe operation of movable crane.
For solving the problems of the technologies described above, movable crane of the present invention supports unbalance prior-warning device and comprises two unbalance trigger elements, connecting hose and acousto-optic warning units, described unbalance trigger element comprises adjusting framework, transparent vessel, hook, adjusting screw(rod), jam nut, adjustable contact pilotage and electrode, described hook is located at described adjusting framework top, described adjusting framework bottom is provided with screw, described adjusting screw(rod) is twisted in the screw of described adjusting framework bottom and tail end is flexibly connected the top of described transparent vessel, described jam nut is twisted on described adjusting screw(rod) and is positioned at described adjusting framework, described adjustable contact pilotage is located at described transparent vessel top and is stretched in transparent vessel, described transparent vessel top has through hole and bottom is provided with connected entrance, described electrode is located at described transparent vessel bottom, described transparent vessel injects conduction liquid through top through hole, described adjustable stylus tip is positioned at described conduction liquid liquid level top, the two ends of described connecting hose connect respectively the connected entrance of described two unbalance trigger element transparent vessels, and the input end of described acousto-optic warning unit connects respectively adjustable contact pilotage and the electrode of described two unbalance trigger elements.
Further, this device also comprises visual scale, and described visual scale is located at the surface of described transparent vessel.
Further, between above-mentioned adjustable contact pilotage and transparent vessel top, be threaded connection.
Further, above-mentioned acousto-optic warning unit comprises power supply, aerotron, diode, with the relay of open contact, buzzer phone, light-emitting diode, indicator lamp, switch, the first resistance, the second resistance, the 3rd resistance and the 4th resistance, described the first resistance is parallel to base stage and the emitter of described aerotron, described the 4th resistance one end connects the base stage of described aerotron, described relay coil is connected described transistor collector with diodes in parallel diode anode, described diode cathode connects power positive end through described switch, described transistor emitter connects power supply negative terminal, described light-emitting diode is in parallel with described buzzer phone after connecting with the second resistance, the open contact of described relay is series between described buzzer phone and switch, described the second resistance is connected described power supply negative terminal with the 3rd resistance one end, after being connected in series described indicator lamp, described the 3rd resistance other end connects described switch, the input end that described the 4th resistance other end and diode cathode are described acousto-optic warning unit.
Adopted technique scheme because movable crane of the present invention supports unbalance prior-warning device, this device comprises two unbalance trigger elements, connecting hose and acousto-optic warning units; The hook of unbalance trigger element is located at and is regulated framework top, regulate framework bottom to be provided with screw, adjusting screw(rod) is twisted in regulating the screw of framework bottom and tail end is flexibly connected the top of transparent vessel, jam nut is twisted on adjusting screw(rod) and is positioned at and regulates framework, adjustable contact pilotage is located at transparent vessel top and is stretched in transparent vessel, transparent vessel top has through hole and bottom is provided with connected entrance, electrode is located at transparent vessel bottom, transparent vessel injects conduction liquid through top through hole, and adjustable stylus tip is positioned at conduction liquid liquid level top; The two ends of connecting hose connect respectively the connected entrance of two unbalance trigger element transparent vessels, and the input end of acousto-optic warning unit connects respectively adjustable contact pilotage and the electrode of two unbalance trigger elements.This device can unbalancely be made effectively supporting in movable crane operational process, early warning accurately, avoids ground to press the generation that falls into tipping backwards accident, has ensured reliable, the safe operation of movable crane.
Brief description of the drawings
Below in conjunction with drawings and embodiments, the present invention is described in further detail:
Fig. 1 is that movable crane of the present invention supports unbalance prior-warning device structural representation;
Arrangement plan when Fig. 2 is the use of this device.
Detailed description of the invention
As shown in Figure 1, movable crane of the present invention supports unbalance prior-warning device and comprises two unbalance trigger elements 1, connecting hose 2 and acousto-optic warning units 3, described unbalance trigger element 1 comprises adjusting framework 11, transparent vessel 12, hook 13, adjusting screw(rod) 14, jam nut 15, adjustable contact pilotage 16 and electrode 17, described hook 13 is located at described adjusting framework 11 tops, described adjusting framework 11 bottoms are provided with screw, described adjusting screw(rod) 14 is twisted in the screw of described adjusting framework 11 bottoms and tail end is flexibly connected the top of described transparent vessel 12, described jam nut 15 is twisted on described adjusting screw(rod) 14 and is positioned at described adjusting framework 11, described adjustable contact pilotage 16 is located at described transparent vessel 12 tops and is stretched in transparent vessel 12, described transparent vessel 12 tops have through hole 18 and bottom is provided with connected entrance 19, described electrode 17 is located at described transparent vessel 12 bottoms, described transparent vessel 12 injects conduction liquid 21 through top through hole 18, described adjustable contact pilotage 16 tips are positioned at described conduction liquid 21 liquid level tops, the two ends of described connecting hose 2 connect respectively the connected entrance 19 of described two unbalance trigger element 1 transparent vessels 12, and the input end of described acousto-optic warning unit 3 connects respectively adjustable contact pilotage 16 and the electrode 17 of described two unbalance trigger elements 1.
Further, this device also comprises visual scale 20, and described visual scale 20 is located at the surface of described transparent vessel 12.Can control groundwater increment and the conduction liquid liquid level of conduction liquid in transparent vessel by visual scale.
Further, between above-mentioned adjustable contact pilotage 16 and transparent vessel 12 tops, be threaded connection.Adjustable contact pilotage can accurately be controlled the distance of adjustable stylus tip apart from conduction liquid liquid level face by screw thread, thereby regulates this to install anti-tipping sensitivity.
Further, above-mentioned acousto-optic warning unit 3 comprises power supply E, aerotron BG, diode D, with the relay J of open contact JK, buzzer phone FMQ, LED 1, indicator lamp LED2, K switch, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3 and the 4th resistance R 4, described the first resistance R 1 is parallel to base stage and the emitter of described aerotron BG, described the 4th resistance R 4 one end connect the base stage of described aerotron BG, aerotron BG collecting electrode described in described relay J coil also diode D anodic bonding in parallel with diode D, described diode D negative electrode connects power supply E anode through described K switch, described aerotron BG emitter connects power supply E negative terminal, described LED 1 is in parallel with described buzzer phone FMQ after connecting with the second resistance R 2, the open contact JK of described relay J is series between described buzzer phone FMQ and K switch, described the second resistance R 2 is connected described power supply E negative terminal with the 3rd resistance R 3 one end, after being connected in series described indicator lamp LED2, described the 3rd resistance R 3 other ends connect described K switch, described the 4th resistance R 4 other ends and diode D negative electrode are the input end of described acousto-optic warning unit 3.
In this device, the adjustable contact pilotage of two unbalance trigger elements and electrode form two unbalance trigger switches, can provide movable crane support unbalance early warning after arbitrary unbalance trigger switch closure by acousto-optic warning unit, two unbalance trigger elements are arranged at by hook on the supporting leg of movable crane both sides, regulate the adjusting screw(rod) capable of regulating transparent vessel height of framework and transparent vessel by connection, after adjusting to the right place, lock by jam nut, support when unbalance at movable crane, two unbalance trigger switches are positioned on same level line, adjustable contact pilotage does not contact the conduction liquid in transparent vessel, two unbalance trigger switches are in open mode, support unbalance once movable crane, under the effect of gravitation, in one side transparent vessel, conduction liquid flows to the transparent vessel of opposite side through connecting hose, until the conduction liquid in two transparent vessels is in balance, in the time that imbalance degree is greater than setting value, conduction liquid in opposite side transparent vessel contacts adjustable contact pilotage, the unbalance trigger switch closure of this unbalance trigger element, now acousto-optic warning unit sends sound and light alarm.In this device, adjustable contact pilotage supports the sensitivity of unbalance warning for setting movable crane, and more approaching by its distance most advanced and sophisticated and conduction liquid liquid level of threaded adjusting, the sensitivity of unbalance warning is just higher, otherwise lower.
In this acousto-optic warning unit, the 4th resistance is current-limiting resistance, and the first resistance is biasing resistor, and diode plays reverse protection effect, the power supply instruction in series of indicator lamp and the 3rd resistance; In the time that any one unbalance trigger switch is closed, transistor base obtains positive voltage and conducting makes relay coil obtain electric adhesive, its open contact closure, and now buzzer phone and light-emitting diode ring and light, prompting movable crane supports unbalance.Otherwise when trigger switch disconnection that any one is unbalance, transistor base ends without positive voltage, now relay coil dead electricity, its open contact is in off-state, and now buzzer phone and light-emitting diode are all noiseless unglazed, and prompting movable crane supports normal.
As shown in Figure 2, in the time that being used, reality can adopt two these devices of cover, four unbalance trigger elements of two these devices of cover become arranged in a crossed manner and are located on four supporting legs of movable crane by linking up with 13, now four of four unbalance trigger elements unbalance trigger switches form a horizontal plane 4, when the supporting plane of this horizontal plane 4 and movable crane is parallel, represent that movable crane supports normal, otherwise it is unbalance that movable crane supports, in the time that imbalance degree is greater than the setting value of adjustable contact pilotage 16 and conduction liquid 21 liquid levels, this device provides and supports unbalance early warning.
This device is simple, practical, cost of manufacture is cheap, and its early warning reliable in action, is particularly suitable for the following movable crane of numerous 40T, for movable crane provides actv. anti-tipping protection, has guaranteed the safe and reliable operation of movable crane.
Claims (4)
1. movable crane supports a unbalance prior-warning device, it is characterized in that: this device comprises two unbalance trigger elements, connecting hose and acousto-optic warning units, described unbalance trigger element comprises adjusting framework, transparent vessel, hook, adjusting screw(rod), jam nut, adjustable contact pilotage and electrode, described hook is located at described adjusting framework top, described adjusting framework bottom is provided with screw, described adjusting screw(rod) is twisted in the screw of described adjusting framework bottom and tail end is flexibly connected the top of described transparent vessel, described jam nut is twisted on described adjusting screw(rod) and is positioned at described adjusting framework, described adjustable contact pilotage is located at described transparent vessel top and is stretched in transparent vessel, described transparent vessel top has through hole and bottom is provided with connected entrance, described electrode is located at described transparent vessel bottom, described transparent vessel injects conduction liquid through top through hole, described adjustable stylus tip is positioned at described conduction liquid liquid level top, the two ends of described connecting hose connect respectively the connected entrance of described two unbalance trigger element transparent vessels, and the input end of described acousto-optic warning unit connects respectively adjustable contact pilotage and the electrode of described two unbalance trigger elements.
2. movable crane according to claim 1 supports unbalance prior-warning device, it is characterized in that: this device also comprises visual scale, and described visual scale is located at the surface of described transparent vessel.
3. movable crane according to claim 1 and 2 supports unbalance prior-warning device, it is characterized in that: between described adjustable contact pilotage and transparent vessel top, be threaded connection.
4. movable crane according to claim 3 supports unbalance prior-warning device, it is characterized in that: described acousto-optic warning unit comprises power supply, aerotron, diode, with the relay of open contact, buzzer phone, light-emitting diode, indicator lamp, switch, the first resistance, the second resistance, the 3rd resistance and the 4th resistance, described the first resistance is parallel to base stage and the emitter of described aerotron, described the 4th resistance one end connects the base stage of described aerotron, described relay coil is connected described transistor collector with diodes in parallel diode anode, described diode cathode connects power positive end through described switch, described transistor emitter connects power supply negative terminal, described light-emitting diode is in parallel with described buzzer phone after connecting with the second resistance, the open contact of described relay is series between described buzzer phone and switch, described the second resistance is connected described power supply negative terminal with the 3rd resistance one end, after being connected in series described indicator lamp, described the 3rd resistance other end connects described switch, the input end that described the 4th resistance other end and diode cathode are described acousto-optic warning unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310190780.6A CN104176662A (en) | 2013-05-22 | 2013-05-22 | Movable-type crane support unbalance early-warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310190780.6A CN104176662A (en) | 2013-05-22 | 2013-05-22 | Movable-type crane support unbalance early-warning device |
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| Publication Number | Publication Date |
|---|---|
| CN104176662A true CN104176662A (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310190780.6A Pending CN104176662A (en) | 2013-05-22 | 2013-05-22 | Movable-type crane support unbalance early-warning device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105883184A (en) * | 2015-01-04 | 2016-08-24 | 陆玉良 | Placement rack convenient for film plating of casing |
| CN108871433A (en) * | 2018-05-30 | 2018-11-23 | 上海宝钢工业技术服务有限公司 | Security protection system with automatic detection environmental risk and alarm function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2361289A1 (en) * | 1973-12-08 | 1975-06-12 | Magneti Marelli Spa | Sensor for accelerometer - for motor vehicles, has insulating body with two tubular channels running from bottom upwards |
| SU620428A1 (en) * | 1976-02-16 | 1978-08-25 | Макеевский Инженерно-Строительный Институт | Cargo crane tilt angle limiter |
| CN86203145U (en) * | 1986-05-08 | 1987-08-12 | 史明久 | Leveller with connecting vessel |
| JPH01295047A (en) * | 1988-05-18 | 1989-11-28 | Taisei Corp | Fluid type balancer, attitude controller using fluid type balancer and attitude retaining device |
| CN102679954A (en) * | 2012-05-31 | 2012-09-19 | 张文知 | Five-electrode four-direction electronic level meter of nanometer conducting liquid switch |
-
2013
- 2013-05-22 CN CN201310190780.6A patent/CN104176662A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2361289A1 (en) * | 1973-12-08 | 1975-06-12 | Magneti Marelli Spa | Sensor for accelerometer - for motor vehicles, has insulating body with two tubular channels running from bottom upwards |
| SU620428A1 (en) * | 1976-02-16 | 1978-08-25 | Макеевский Инженерно-Строительный Институт | Cargo crane tilt angle limiter |
| CN86203145U (en) * | 1986-05-08 | 1987-08-12 | 史明久 | Leveller with connecting vessel |
| JPH01295047A (en) * | 1988-05-18 | 1989-11-28 | Taisei Corp | Fluid type balancer, attitude controller using fluid type balancer and attitude retaining device |
| CN102679954A (en) * | 2012-05-31 | 2012-09-19 | 张文知 | Five-electrode four-direction electronic level meter of nanometer conducting liquid switch |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105883184A (en) * | 2015-01-04 | 2016-08-24 | 陆玉良 | Placement rack convenient for film plating of casing |
| CN108871433A (en) * | 2018-05-30 | 2018-11-23 | 上海宝钢工业技术服务有限公司 | Security protection system with automatic detection environmental risk and alarm function |
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Application publication date: 20141203 |
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