CN2690365Y

CN2690365Y - Hoister positioning control circuit

Info

Publication number: CN2690365Y
Application number: CN 200420044389
Authority: CN
Inventors: 康柏军
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-04-06
Filing date: 2004-04-06
Publication date: 2005-04-06
Anticipated expiration: 2014-04-06

Abstract

The utility model discloses a hoister positioning control circuit, which aims at providing a hoister positioning control circuit with accurate positioning, convenient adjustment and repairing. The hoister positioning control circuit mainly comprises a main circuit (1), a control circuit (2) and a positioning signal circuit (3). A plurality of signal switches in the positioning signal circuit (3) are respectively installed on a derrick at suitable positions which are defined after being adjusted in order to carry out positioning control to a gondola, so the positioning is accurate. The utility model is convenient to be adjusted and repaired and simple to be operated; the complex setting program and the pattern conversion process are omitted. The hoister positioning control circuit also has the function of top limiting, bottom limiting, top pulse proofing and bottom pulse proofing, so the mechanical performance and safety performance of the equipment are further improved.

Description

The winch positioning control circuit

Technical field

The utility model relates to a kind of winch positioning control circuit.

Background technology

The application of winch is very widely, on the modern architecture building site, use in a large number, it generally is the transportation up and down that acts on workpiece and material and weight, therefore it requires to possess safety, accuracy and advantage simple to operate, easy to maintenance, but, generally use the winch of seeing in a large number with us at present, unsatisfactory in these areas, especially accurate positioning and easy to maintenance on have some problems, this is owing to following factor causes:

1, in positioning control, the current programme of winch all is to adopt the driving wheel to winch to detect, control, thereby realize positioning control to hanging basket, this has just ignored flexible, the lifting rope of lifting rope and the coefficient that skids between rolling wheel, the factors such as load carrying ability of hanging basket, these factors all are randomness, especially even more serious when with the passing of time equipment use, this just must cause the location of hanging basket inaccurate.

2, on detection and localization, the current methods of winch all is to adopt sensor and electronic circuit or computer, micro controller system and so on component, adjustment and maintenance all are that the maintenance electrician on the building site is difficult to unaided, need equipment producer or technical skill personnel operation, in case break down, delay work, mistake, influence is produced.

3, there is human electric shock's possibility in most line voltages that use as the control circuit power supply in the current programme on the safety.

In sum, to exist the location inaccurate and maintenance is inconvenient, use the full shortcoming of feeling unwell for existing winch positioning control circuit.

The utility model content

Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, and a kind of accurate positioning, adjustment and winch positioning control circuit easy to maintenance, safe in utilization are provided.

The technical solution of the utility model is: the utility model comprises power circuit, control circuit, positioning signal circuit, described power circuit is by AC contactor KM0 with electric network source and winch motor and brake electromagnet, KM1, KM2, thermal relay RJ is connected successively, described AC contactor KM0, KM1, KM2's is logical, breaking controlled by described control circuit, described control circuit is accepted to implement logical to the power supply of the described winch motor in the described power circuit after the positioning signal of described positioning signal circuit, disconnected and paraphase is controlled, realize the running of winch, stop, rotate and reverse, described control circuit comprises a plurality of button switchs, described AC contactor KM0, KM1, the coil of KM2 and contact KM0 thereof, KM1, KM2, intermediate relay ZJ 1 in the described positioning signal circuit, ZJ2, ZJ3, the contact ZJ1 of ZJ4, ZJ2, ZJ3, ZJ4 and connecting wire, it is characterized in that: described positioning signal circuit comprises several signal switchs and lock-bit button switch, intermediate relay ZJ 1, ZJ2, ZJ3, the coil of ZJ4 and connecting conducting wire, described several signal switchs are installed in respectively on the correct position of determining through the debugging back on the derrick, described several signal switchs change logical when these described correct positions of hanging basket process, disconnected state and generation are opened, close signal, described opening, close signal immediately to described control circuit transmission and cooperate being provided with of described button switch to realize that hanging basket is up, descending, the location stops every function.

Described AC contactor KM1 in the described power circuit, KM2 paraphase parallel connection are serially connected between the thermal element input end of the mouth of described AC contactor KM0 and the art thermal relay RJ of institute, these disconnected those logical power supplies of implementing the positive and negative running of described winch motor under the control of described control circuit.

A plurality of navigation button switches in the described control circuit are respectively that the control hanging basket uply, up stops, descendingly, descending stopping, emergency outage.

Several signal switchs in the described positioning signal circuit are limit switches or near switch or photoelectric switch.

Described positioning signal circuit adopts the 24V DC power supply.

The beneficial effects of the utility model are: owing to adopt described signal switch to the direct spacing control of hanging basket, so accurate positioning is errorless, simultaneously no matter signal switch adopt limit switch, near switch or photoelectric switch, the installation of these switches, adjustment and maintenance circuit thereof are the technology that common electrician can both grasp, so adjustment and maintenance are all very convenient, operate more simply, saved complicated setting program and mode converting process; Because positioning signal circuit adopts the 24V DC power supply, so avoided the possibility of getting an electric shock on the derrick, and this circuit can not only be located accurately, but also possess the upper limit, lower limit, anti-rush to summit and erosion control at the bottom of function, further improved the machinery and the safety performance of equipment.

Description of drawings

Fig. 1 is the utility model electrical schematic diagram.

The specific embodiment

As shown in Figure 1, the utility model comprises power circuit 1, control circuit 2, positioning signal circuit 3, described power circuit 1 is by AC contactor KM0 with electric network source and winch motor and brake electromagnet, KM1, KM2, thermal relay RJ is connected successively, described AC contactor KM0, KM1, KM2's is logical, break and be subjected to described control circuit 2 controls, implement logical to the power supply of the described winch motor in the described power circuit 1 after the positioning signal of the described positioning signal circuit 3 of described control circuit 2 acceptance, disconnected and paraphase is controlled, realize the running of winch, stop, rotate and reverse, described control circuit 2 comprises a plurality of button switchs, described AC contactor KM0, KM1, the coil of KM2 and contact KM0 thereof, KM1, KM2, intermediate relay ZJ 1 in the described positioning signal circuit 3, ZJ2, ZJ3, the contact ZJ1 of ZJ4, ZJ2, ZJ3, ZJ4 and connecting conducting wire, described positioning signal circuit 3 comprises several signal switchs and lock-bit button switch, intermediate relay ZJ 1, ZJ2, ZJ3, the coil of ZJ4 and connecting conducting wire, described several signal switchs are installed in respectively on the correct position of determining through the debugging back on the derrick, described several signal switchs change logical when these described correct positions of hanging basket process, disconnected state and generation are opened, close signal, described opening, close signal immediately to described control circuit 2 transmission and cooperate being provided with of above-mentioned button switch to realize that hanging basket is up, descending, the location stops every function.

Also comprise disconnector, fuse, air switch, RCCB in the described power circuit 1, they are connected between the input end of electric network source and described AC contactor KM0 successively, and circuit is implemented multiple protective.Also comprise thermal relay RJ in the described power circuit 1; the thermal element of described thermal relay RJ is connected between the mouth and described winch motor and brake electromagnet of AC contactor KM1; the normally closed interlock of described thermal relay RJ is connected in the wire loop of described AC contactor KM0, KM1, KM2, and described winch motor and brake electromagnet are implemented short circuit and overload protection.Described AC contactor KM1 in the described power circuit 1, KM2 paraphase parallel connection are serially connected between the thermal element input end of the mouth of described AC contactor KM0 and described thermal relay RJ, these disconnected those logical power supplies of implementing the positive and negative running of described winch motor under the control of described control circuit 2.

A plurality of navigation button switches in the described control circuit 2 are respectively that the control hanging basket uply, up stops, descendingly, descending stopping, emergency outage.

Several signal switchs in the described positioning signal circuit 3 can be limit switches, also can be near switch, also can be photoelectric switchs.Several button switchs in the described positioning signal circuit 3 are self-locking type normally open push button switches, and its quantity depends on the quantity of the signal location in the described winch length of run.Described positioning signal circuit 3 adopts the 24V DC power supply.

In present embodiment power circuit 1, three-phase four-wire power is introduced the disconnector input end, the mouth series connection fuse FU1-3 of described disconnector, the input end of another termination air switch of described fuse FU1-3, the input end of the output termination RCCB of described air switch, the output termination master of described RCCB makes the input end of AC contactor KM0, described master makes the output termination paraphase AC contactor KM1 of AC contactor, the input end of KM2, described paraphase AC contactor KM1 is in parallel with the KM2 commutation, described paraphase AC contactor KM1, the secondary input end of the mouth series connection thermal relay RJ of KM2, the once output termination winder motor D of described thermal relay RJ and brake electromagnet coil L.

In present embodiment control circuit 2, the power supply phase line is introduced into the end of rotor switch AN0 through fuse FU4, zero-power line causes an end of intermediate relay ZJ 4 normally closed interlocks, button switch AN1 connects between the other end of described fuse FU4 and described intermediate relay ZJ 4 normally closed interlocks, AN2, the main AC contactor KM0 coil that makes, the normally closed interlock of the normally closed interlock of thermal relay RJ and intermediate relay JZ4 is formed the loop, while is the main auxiliary normally open contact that makes AC contactor KM0 in parallel on button switch AN2, make three indicator lamps in parallel on the AC contactor KM0 coil the master, wherein two connect respectively described paraphase AC contactor KM1 and KM2 auxiliary normally open contact, three indicator lamps are respectively as power supply, the uplink and downlink written instructions; On the contact of described rotor switch AN0 and described button switch AN1, connect an end of described thermal relay RJ normally closed interlock, one end of another termination button switch AN4 normally closed interlock of described thermal relay RJ normally closed interlock, one end of another termination intermediate relay ZJ 2 normally closed interlocks of described button switch AN4 normally closed interlock, another termination button switch AN5 of described intermediate relay ZJ 2 normally closed interlocks opens, close contact point in parallel, the auxiliary normally open contact of paraphase AC contactor KM1 in parallel on the normally open contact of described button switch AN5 simultaneously, the normally closed interlock of another termination button switch of the normally open contact of described button switch AN5 AN3, the auxiliary normally closed interlock of the described paraphase AC contactor of another termination KM2 of described button switch AN3 normally closed interlock, the connect coil of described paraphase AC contactor KM1 of the auxiliary normally closed interlock other end connects the normally closed interlock of intermediate relay ZJ 1, the auxiliary normally open contact of the normally open contact of described button switch AN3 described paraphase AC contactor KM2 in parallel, the normally closed interlock of its described button switch AN5 of a termination, the auxiliary normally closed interlock of the described paraphase AC contactor of another termination KM1, the connect coil of described paraphase AC contactor KM2 of the other end of the auxiliary normally closed interlock of described paraphase AC contactor KM1 connects the normally closed interlock of intermediate relay ZJ 3, makes the contact first line of a couplet of contactless switch KM0 coil follow described intermediate relay ZJ 1 the normally closed interlock and the described master of described thermal relay, the other end of ZJ3.

Present embodiment positioning signal circuit 3 adopts universal 24V DC power supply, the coil of described intermediate relay ZJ 1 be parallel to 24V direct supply two ends after the normally closed interlock of limit switch XK is connected, finish the lower limit function; The coil of described intermediate relay ZJ 3 be parallel to 24V direct supply two ends after the normally closed interlock of limit switch SK is connected, finish upper limit function; The coil of described intermediate relay ZJ 4 be parallel to 24V direct supply two ends after the normally closed interlock of limit switch LK is connected, finish the anti-function of rushing to summit; The coil of described intermediate relay ZJ 2 be parallel to 24V direct supply two ends after the normally closed interlock of limit switch SL1-N, button switch QA1-N is connected, finish positioning function, the quantity in parallel of limit switch SL and button switch QA what depend on what of floor and locating point, floor location point is 8 in the present embodiment, each 8 of limit switch SL1-SL8 in parallel and button switch QA1-QA8.

Claims

1, a kind of winch positioning control circuit, comprise power circuit (1), control circuit (2), positioning signal circuit (3), described power circuit (1) is by AC contactor KM0 with electric network source and winch motor and brake electromagnet, KM1, KM2, thermal relay RJ is connected successively, described AC contactor KM0, KM1, KM2's is logical, the disconnected described control circuit (2) that is subjected to is controlled, described control circuit (2) is accepted to implement logical to the power supply of the described winch motor in the described power circuit (1) after the positioning signal of described positioning signal circuit (3), disconnected and paraphase is controlled, realize the running of winch, stop, rotate and reverse, described control circuit (2) comprises a plurality of button switchs, described AC contactor KM0, KM1, the coil of KM2 and contact KM0 thereof, KM1, KM2, intermediate relay ZJ 1 in the described positioning signal circuit (3), ZJ2, ZJ3, the contact ZJ1 of ZJ4, ZJ2, ZJ3, ZJ4 and connecting wire, it is characterized in that: described positioning signal circuit (3) comprises several signal switchs and lock-bit button switch, intermediate relay ZJ 1, ZJ2, ZJ3, the coil of ZJ4 and connecting conducting wire, described several signal switchs are installed in respectively on the correct position of determining through the debugging back on the derrick, described several signal switchs change logical when these described correct positions of hanging basket process, disconnected state and generation are opened, close signal, described opening, closing signal transmits and cooperates being provided with of described button switch to realize that hanging basket is up to described control circuit (2) immediately, descending, the location stops every function.

2, winch positioning control circuit according to claim 1, it is characterized in that: the described AC contactor KM1 in the described power circuit (1), KM2 paraphase parallel connection are serially connected between the thermal element input end of the mouth of described AC contactor KM0 and the art thermal relay RJ of institute, these disconnected those logical power supplies of implementing the positive and negative running of described winch motor under the control of described control circuit (2).

3, winch positioning control circuit according to claim 1 is characterized in that: a plurality of navigation button switches in the described control circuit (2) are respectively that the control hanging basket uply, up stops, descendingly, descending stopping, emergency outage.

4, winch positioning control circuit according to claim 1 is characterized in that: several signal switchs in the described positioning signal circuit (3) are limit switches or near switch or photoelectric switch.

5, winch positioning control circuit according to claim 1 is characterized in that: described positioning signal circuit (3) adopts the 24V DC power supply.