CN201722078U - Cable crane lifting height limit position protector - Google Patents
Cable crane lifting height limit position protector Download PDFInfo
- Publication number
- CN201722078U CN201722078U CN2010202663463U CN201020266346U CN201722078U CN 201722078 U CN201722078 U CN 201722078U CN 2010202663463 U CN2010202663463 U CN 2010202663463U CN 201020266346 U CN201020266346 U CN 201020266346U CN 201722078 U CN201722078 U CN 201722078U
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- protector
- cable
- signal transmitter
- cable crane
- hangs
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- Expired - Lifetime
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Abstract
The utility model discloses a cable crane lifting height limit position protector, which comprises a protector body and a protector signal transmitter which is matched with the protector body and arranged on a cable crane radial truck trolley. The protector body and the protector signal transmitter are communicated in a wireless communication mode, the protector signal transmitter comprises a wireless signal transmitter and a travel switch, a normal closed contact K1 of the travel switch is serially connected in a power supply circuit of the wireless signal transmitter, a rotating arm thereof is hung with a balance weight, and a cable crane hook is provided with a balance weight bearing plate. The protector body comprises a wireless electrical signal receiver and an alternating current middle relay which is controlled by the wireless electrical signal receiver, and a normal closed contact J of the alternating current middle relay is connected in a lifting control branch circuit of a crane motor driving control circuit of a winch for a lifting cable crane in series. The cable crane lifting height limit position protector has reasonable structure design, reliable actions, simple and convenient operation and high practical value, and can effectively solve the problem that the lifting height of the cable crane hook is automatically limited.
Description
Technical field
The utility model belongs to cable and hangs hoisting depth automatic control technology field, especially relates to a kind of cable and hangs hoisting depth end position protector.
Background technology
Cable hang (being also referred to as cable crane) be a kind of with flexible steel wire rope as the built on stilts supporting member of big span, move on rope for the load-carrying dolly, have the extraordinary elevator machinery of vertical transport and horizontal transportation function concurrently.Aspects such as cable is hung in that aqueduct sets up, bridge construction, harbour construction, forest industry, mining industry, dump loading and unloading and harbour carrying all are widely used.As elevator machinery, cable hangs the safety device that the automatic guidance hoisting height of cable crane hook not to exceed set limiting height also should be arranged.The span that cable hangs generally all has hundreds of rice (also having more than the km), and cable hang be with flexible steel wire rope as built on stilts supporting member, its lifting winch is not installed on the load-carrying dolly that moves on the flexible steel wire rope.If cable hangs the automatic guidance hook height that adopts overhead and gantry cranes and car hosit to use and is no more than the method for setting limiting altitude, the flexible steel wire rope that is used to hang control cable of hundred meters of radicals (even more than a km) span will be set.But, because trail drag force is big, can causes the situation of dragging motionless cable even breaking cable to take place, and be uneconomic at the dilatory cable of the scope of hundreds of rice (even more than a km).Therefore, be necessary to adopt the method for transmission over radio control signal to realize the automatic guidance hoisting height of cable crane hook not to exceed set limiting height.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art; provide a kind of cable to hang hoisting depth end position protector; its reasonable in design, reliable in action, use is easy and simple to handle and result of use good, practical value is high, can effectively solve the hoisting depth volitional check problem of cable suspension hook.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of cable hangs hoisting depth end position protector, it is characterized in that: cable hangs hoisting depth end position protector, it is characterized in that: comprise this machine of protector and be installed in that cable hangs protector signal transmitter on the load-carrying dolly and the two carries out communication with wireless communication mode; Described protector signal transmitter comprises wireless signal transmitter and the travel switch that the signal launching circuit of wireless signal transmitter is carried out break-make control, is hung with the suspension hook that a counterweight and cable hang by stay cord on the pivoted arm of travel switch and is provided with a counterweight supporting plate that is positioned at the counterweight below; Described this machine of protector comprises radio signal receiver and the AC intermediate relay of being controlled by radio signal receiver; radio signal receiver is identical with the frequency of operation of wireless signal transmitter, and the normally closed contact J of AC intermediate relay is serially connected in and promotes cable and hang in the lifting drive controlling branch loop with the crane and hoist type motor of winch.
Described counterweight supporting plate is positioned under the counterweight.
Also comprise the Alarm Unit of being controlled by radio signal receiver, described Alarm Unit and radio signal receiver join.
Described travel switch is installed in cable and hangs load-carrying dolly middle part.
Described this machine of protector is installed in the lifting cable and hangs in the operation control machine room of using winch.
The utility model compared with prior art has the following advantages:
1, simple in structure and reasonable in design, reliable in action.
2, cost is low, installation, debugging and easy to maintenance.
3, loss is few, and operating costs is low.
4, use is easy and simple to handle; degree of automation height and result of use are good, practical value is high; be that an energy volitional check cable hangs isolated plant and the volitional check method that hook height surpass to be set end position, protector has hoisting depth when the cable suspension hook and surpasses to cut the painter automatically when setting end position and hang the lifting winch motor circuit and make the cable suspension hook stop to promote but do not influence the cable suspension hook and descend and send alerting signal prompting operation driver simultaneously and stop the function that the cable suspension hook promotes operation.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is a circuit block diagram of the present utility model.
Fig. 2 is the installation site scheme drawing of the utility model wireless signal transmitter.
Fig. 3 is the schematic circuit diagram of the utility model crane and hoist type motor.
Description of reference numerals:
This machine of 1-protector; The 1-1-radio signal receiver; The 1-2-AC intermediate relay;
The 1-3-Alarm Unit; 2-protector signal transmitter; The 2-1-wireless signal transmitter;
The 2-2-travel switch; 2-21-counterweight stay cord; The 2-22-counterweight;
The 3-cable hangs the load-carrying dolly; The 4-suspension hook; 5-counterweight supporting plate;
The 6-crane and hoist type motor; The 7-track cable; The 8-hoisting line;
The 9-drg.
The specific embodiment
As shown in Figure 1 and Figure 2, the utility model comprises this machine of protector 1 and is installed in that cable hangs protector signal transmitter 2 on the load-carrying dolly 3 and the two carries out communication with wireless communication mode.Described protector signal transmitter 2 comprises wireless signal transmitter 2-1 and the travel switch 2-2 that the signal launching circuit of wireless signal transmitter 2-1 is carried out break-make control, is hung with the suspension hook 4 that a counterweight 2-22 and cable hang by stay cord 2-21 on the pivoted arm of travel switch 2-2 and is provided with a counterweight supporting plate 5 that is positioned at counterweight 2-22 below.Described this machine of protector 1 comprises radio signal receiver 1-1 and the AC intermediate relay 1-2 that is controlled by radio signal receiver 1-1; radio signal receiver 1-1 is identical with the frequency of operation of wireless signal transmitter 2-1, and the normally closed contact J of AC intermediate relay 1-2 is serially connected in and promotes cable and hang in the lifting drive controlling branch loop with the crane and hoist type motor 6 of winch.
In the present embodiment, described counterweight supporting plate 5 is positioned under the counterweight 2-22, and the utility model also comprises the Alarm Unit 1-3 that is controlled by radio signal receiver 1-1 simultaneously, and described Alarm Unit 1-3 and radio signal receiver 1-1 join.Described travel switch 2-2 is installed in cable and hangs load-carrying dolly 3 middle parts, and this machine of protector 1 is installed in the lifting cable and hangs in the operation control machine room of using winch.Described Alarm Unit 1-3 is an acousto-optic warning unit.In the present embodiment, the red alarm indicator lamp in the described acousto-optic warning unit is laid on the outer hull of this machine of protector 1.
The power supply of described this machine of protector 1 is a chargeable battery; simultaneously correspondence is provided with battery charge socket, battery charge switch and charge condition indicator lamp on the outer hull of this machine of protector 1, and described charge condition master cock and charge condition indicator lamp all are serially connected in the charge circuit between described chargeable battery and external charge device.In addition, the outer hull of described this machine of protector 1 is provided with green working station indicator and the mode of operation master cock that is serially connected in this machine of protector 1 current supply circuit.Described cable hangs load-carrying dolly 3 and is installed in up and down that two cables are on track cable 7 and the hoisting line 8.Described protector signal transmitter 2 is wanted supporting use with this machine of protector 1, i.e. the wireless signal that this machine of protector 1 is merely able to receive a corresponding protector signal transmitter 2 emissions.
In conjunction with Fig. 3, the control loop of the drive controlling loop of described crane and hoist type motor 6 for controlling by cam controller.Particularly, the three phase supply power supply is through circuit breaker K, is connected on the power end of crane and hoist type motor 6 behind three relay K 1, K2 and K3 and the cam controller.Be connected to the drg 9 that crane and hoist type motor 6 is braked in the three phase supply loop of described crane and hoist type motor 6.
In the actual lifting process, after the energized, radio signal receiver 1-1 starts and is in open state all the time, can receive at any time to be installed in cable and to hang wireless signal transmitter 2-1 institute emitted radio signal on the load-carrying dolly 3.And radio signal receiver 1-1 can receive the radio signal that has the same frequency spectrum characteristic with wireless signal transmitter 2-1 emitted radio signal.Described radio signal receiver 1-1 exports its power gain that receives radio signal to the power that is enough to drive AC intermediate relay 1-2.
Working process of the present utility model is: when AC intermediate relay 1-2 adhesive and its normally closed contact J closure, the lifting control circuit of crane and hoist type motor 6 is connected, and cable is lifted up into row and promoted operation; When the hoisting depth of suspension hook 4 did not surpass the limiting altitude of setting, under the action of gravity of counterweight 2-22, the normally closed contact K1 of travel switch 2-2 disconnected, and this moment, wireless signal transmitter 2-1 was in off-position, radnos emission; When the hoisting depth of suspension hook 4 surpasses the limiting altitude of setting; counterweight supporting plate 5 on the suspension hook 4 holds up counterweight 2-22; make the pivoted arm of travel switch 2-2 lose the action of gravity of counterweight 2-22; travel switch 2-2 resets under its spring force effect and its normally closed contact K1 connects; the hoisting depth that this moment, wireless signal transmitter 2-1 outwards sent the cable suspension hook has surpassed the radio signal of the limiting altitude of setting; be placed in the operation machine room this machine of protector 1 receive signal after; AC intermediate relay 1-2 is controlled and cuts off automatically the lifting drive controlling branch loop of crane and hoist type motor 6; and make winch stop suspension hook 4 is promoted; Alarm Unit 1-3 sends the operation that alerting signal prompting operation driver stops to promote suspension hook 4 simultaneously, but does not influence the decline operation of winch to suspension hook 4 this moment.That is to say that after the hoisting depth of cable suspension hook 4 surpassed the limiting altitude of setting, cable suspension hook 4 still can be realized the operation that descends.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of technical solutions of the utility model according to the utility model technical spirit.
Claims (5)
1. a cable hangs hoisting depth end position protector, it is characterized in that: comprise this machine of protector (1) and be installed in that cable hangs protector signal transmitter (2) on the load-carrying dolly (3) and the two carries out communication with wireless communication mode; Described protector signal transmitter (2) comprises wireless signal transmitter (2-1) and the travel switch (2-2) that the signal launching circuit of wireless signal transmitter (2-1) is carried out break-make control, is hung with suspension hook (4) that a counterweight (2-22) and cable hang by stay cord (2-21) on the pivoted arm of travel switch (2-2) and is provided with a counterweight supporting plate (5) that is positioned at below the counterweight (2-22); Described this machine of protector (1) comprises radio signal receiver (1-1) and the AC intermediate relay of being controlled by radio signal receiver (1-1) (1-2); radio signal receiver (1-1) is identical with the frequency of operation of wireless signal transmitter (2-1), and the normally closed contact J of AC intermediate relay (1-2) is serially connected in the lifting cable and hangs in the lifting drive controlling branch loop of the crane and hoist type motor (6) with winch.
2. hang hoisting depth end position protector according to the described cable of claim 1, it is characterized in that: described counterweight supporting plate (5) is positioned under the counterweight (2-22).
3. hang hoisting depth end position protector according to claim 1 or 2 described cables; it is characterized in that: also comprise the Alarm Unit of being controlled by radio signal receiver (1-1) (1-3), described alarm single (1-3) is joined with radio signal receiver (1-1).
4. hang hoisting depth end position protector according to claim 1 or 2 described cables, it is characterized in that: described travel switch (2-2) is installed in cable and hangs load-carrying dolly (3) middle part.
5. hang hoisting depth end position protector according to claim 1 or 2 described cables, it is characterized in that: described this machine of protector (1) is installed in the lifting cable and hangs in the operation control machine room of using winch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202663463U CN201722078U (en) | 2010-07-20 | 2010-07-20 | Cable crane lifting height limit position protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202663463U CN201722078U (en) | 2010-07-20 | 2010-07-20 | Cable crane lifting height limit position protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201722078U true CN201722078U (en) | 2011-01-26 |
Family
ID=43490386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202663463U Expired - Lifetime CN201722078U (en) | 2010-07-20 | 2010-07-20 | Cable crane lifting height limit position protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201722078U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102616686A (en) * | 2012-03-13 | 2012-08-01 | 青岛金桥建设机械有限公司 | Electronic limiting control system for lifting height of tower crane hook |
| CN103722034A (en) * | 2013-11-17 | 2014-04-16 | 安徽科泰工贸有限责任公司 | Wirelessly-controlled wire rope pulling machine |
| CN104444413A (en) * | 2014-11-11 | 2015-03-25 | 宁夏嘉翔自控技术有限公司 | Electric automation improvement for tail car pitching mechanism of bucket wheel machine |
-
2010
- 2010-07-20 CN CN2010202663463U patent/CN201722078U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102616686A (en) * | 2012-03-13 | 2012-08-01 | 青岛金桥建设机械有限公司 | Electronic limiting control system for lifting height of tower crane hook |
| CN103722034A (en) * | 2013-11-17 | 2014-04-16 | 安徽科泰工贸有限责任公司 | Wirelessly-controlled wire rope pulling machine |
| CN104444413A (en) * | 2014-11-11 | 2015-03-25 | 宁夏嘉翔自控技术有限公司 | Electric automation improvement for tail car pitching mechanism of bucket wheel machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110126 |
|
| CX01 | Expiry of patent term |