CN217867767U - Prevent wind and press from both sides rail ware electric control circuit - Google Patents

Abstract

The utility model discloses an electric control circuit of a windproof rail clamping device, which comprises a hydraulic drive motor, a thermal relay, a main contactor, a three-phase switch and a cam controller; one end of the three-phase switch is connected with a three-phase alternating current power supply, the other end of the three-phase switch is connected with one end of a normally open contact of the main contactor, the other end of the normally open contact of the main contactor is connected with one end of a thermal relay coil, and the other end of the thermal relay coil is connected with a hydraulic driving motor; one end of the normally closed contact of the thermal relay is connected with one end of the AC220, the other end of the normally closed contact of the thermal relay is respectively connected with the movable contact 1, the movable contact 0 and the movable contact 2 of the cam controller, the fixed contact of the cam controller is connected with one end of the coil of the main contactor, and the other end of the coil of the main contactor is connected with the other end of the AC 220. The utility model discloses prevent wind iron wedge and cart control and carry out electric chain, the operator need not frequently go to the start-up to stop preventing wind iron wedge repeatedly, has reduced operator's work load, has avoided artificial work error, has improved the security.

Description

Prevent wind and press from both sides rail ware electric control circuit

Technical Field

The utility model relates to an electrical control technical field, concretely relates to prevent wind and press from both sides rail ware electric control circuit.

Background

The gantry crane is widely applied to places such as ports, goods yards, factories and construction sites, and when the gantry crane is not used, the gantry crane is locked on a track by a rail clamping device to prevent the gantry crane from sliding and overturning under the action of external force such as strong wind. However, in use, the rail clamping device needs to be loosened, and if the rail clamping device encounters a sudden wind, the wind resistance of the rail clamping device is quite weak. The windproof iron wedge is used in the market at present, when the gantry crane walks, the iron wedge is retracted by using an electro-hydraulic mechanism, and when the gantry crane stops walking, the iron shoe is put down, so that the gantry crane can be in emergency windproof at any time, and the windproof capability of the gantry crane is greatly improved. However, the wind-proof iron wedge is a general standard product which is independent and integrated, and the door machine is not the same manufacturer, so that a plurality of problems exist in the actual use process.

When an operator controls the gantry crane to walk, the operator needs to press the green start button first, and the gantry crane can walk after the hydraulic motor lifts the iron wedge. When the large vehicle is parked, the red stop button is pressed, the oil pressure is removed, the iron wedge is put down, and the large vehicle is in a windproof state. Has the following disadvantages: 1. during actual hoisting operation, the cart needs to be started and stopped frequently, and an operator needs to repeatedly operate a start button and a stop button frequently to control the lifting and the putting down of the iron wedge, so that the labor intensity of the operator is increased; 2. increased operating procedure, easily take place misoperation, if do not pack up the iron wedge, and started the cart, cause and drag the line, cause the injury to equipment, arouse other safety risks. 3. In actual operation, an operator is convenient to operate, the wind-proof iron wedge is usually retracted and is not stopped, the gantry crane is not in a wind-proof state actually, and the iron wedge motor runs for a long time, consumes energy and is easy to burn out.

SUMMERY OF THE UTILITY MODEL

In view of this, in order to solve the above-mentioned problem among the prior art, the utility model provides a prevent wind rail clamp electric control circuit opens the main contactor that stops with the motor and the electric interlocking of cart cam controller, when walking about the cart, prevent wind the iron wedge and pack up, when returning the zero bit, prevent wind the iron wedge and put down and be in the state of preventing wind, eliminated above adverse factor.

The utility model discloses an above-mentioned problem is solved to following technical means:

an electric control circuit of a windproof rail clamping device comprises a hydraulic drive motor, a thermal relay, a main contactor, a three-phase switch and a cam controller;

in the primary electric circuit, one end of a three-phase switch is connected with a three-phase alternating current power supply, the other end of the three-phase switch is connected with one end of a normally open contact of a main contactor, the other end of the normally open contact of the main contactor is connected with one end of a thermorelay coil, and the other end of the thermorelay coil is connected with a hydraulic driving motor;

in the secondary electric circuit, one end of a normally closed contact of the thermal relay is connected with one end of the AC220, the other end of the normally closed contact of the thermal relay is respectively connected with a movable contact 1, a movable contact 0 and a movable contact 2 of the cam controller, a fixed contact of the cam controller is connected with one end of a main contactor coil, and the other end of the main contactor coil is connected with the other end of the AC 220.

Compared with the prior art, the beneficial effects of the utility model include at least:

1. the wind-proof iron wedge is electrically interlocked with the cart control, an operator does not need to frequently and repeatedly start and stop the wind-proof iron wedge, the workload of the operator is reduced, the artificial working errors are avoided, and the safety is improved;

2. the invalid working time of the motor of the wind-proof iron wedge is effectively reduced, and the energy consumption and the abrasion of equipment are reduced;

3. the management loophole of the wind-proof iron wedge is blocked, so that the wind-proof iron wedge is in an effective protection state.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a circuit diagram of an electric control circuit of a windproof rail clamping device in the prior art;

FIG. 2 is a circuit diagram of the electric control circuit of the windproof rail clamping device of the present invention;

fig. 3 is an internal schematic diagram of the cam controller.

M, a hydraulic drive motor; FR, thermal relay; KM, a main contactor; QF, three-phase switch; SB2, green start button; SB1, red stop button; K. and (4) switching.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments accompanying the drawings are described in detail below. It should be noted that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

As shown in fig. 1, in the prior art, the electric control circuit of the wind-proof rail clamping device includes a hydraulic drive motor M, a thermal relay FR, a main contactor KM, a three-phase switch QF, a green start button SB2, a red stop button SB1 and a switch K;

in the primary electric circuit, one end of a three-phase switch QF is connected with a three-phase alternating-current power supply, the other end of the three-phase switch QF is connected with one end of a normally open contact of a main contactor KM, the other end of the normally open contact of the main contactor KM is connected with one end of a thermorelay FR coil, and the other end of the thermorelay FR coil is connected with a hydraulic driving motor M;

in the secondary electric circuit, one end of an FR normally closed contact of the thermal relay is connected with one end of the AC220, the other end of the FR normally closed contact of the thermal relay is connected with one end of a red stop button SB1, the other end of the red stop button SB1 is connected with one end of a green start button SB2 and one end of a switch K respectively, the other end of the green start button SB2 and the other end of the switch K are connected with one end of a coil of the main contactor KM, and the other end of the coil of the main contactor KM is connected with the other end of the AC 220.

After a green starting button SB2 is pressed, the contactor KM is closed, and a hydraulic driving motor M works to drive a hydraulic mechanism to lift the iron wedge; after the red stop button SB1 is pressed, the contactor KM is flicked, the power is lost, the hydraulic drive motor M stops working, and the wind-proof iron wedge is put down.

As shown in fig. 2 and 3, the utility model provides an electric control circuit for a windproof rail clamping device, which comprises a hydraulic drive motor M, a thermal relay FR, a main contactor KM, a three-phase switch QF and a cam controller;

in the primary electric circuit, one end of a three-phase switch QF is connected with a three-phase alternating-current power supply, the other end of the three-phase switch QF is connected with one end of a normally open contact of a main contactor KM, the other end of the normally open contact of the main contactor KM is connected with one end of a thermal relay FR coil, and the other end of the thermal relay FR coil is connected with a hydraulic driving motor M;

in the secondary electric circuit, one end of a normally closed contact of a thermal relay FR is connected with one end of an AC220, the other end of the normally closed contact of the thermal relay FR is respectively connected with a movable contact 1, a movable contact 0 and a movable contact 2 of a cam controller, a fixed contact of the cam controller is connected with one end of a coil of a main contactor KM, and the other end of the coil of the main contactor KM is connected with the other end of the AC 220.

Replacing a red stop button SB1 and a green start button SB2, connecting wires from the cam controllers 1 and 2 to get electricity, driving the cart to the left when the cam controller turns to 1, electrifying a coil of a contactor KM, driving a motor M to work by hydraulic pressure, and lifting a windproof iron wedge; when the cam controller is driven to 2 points, the cart runs rightwards, the coil of the contactor KM is electrified, the hydraulic driving motor M works, and the wind-proof iron wedge is lifted; when the cam controller returns to the 0 position, the cart stops, the contactor KM is disconnected, and the windproof iron wedge is put down.

The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (1)

1. An electric control circuit of a windproof rail clamping device is characterized by comprising a hydraulic drive motor, a thermal relay, a main contactor, a three-phase switch and a cam controller;

in the primary electric circuit, one end of a three-phase switch is connected with a three-phase alternating current power supply, the other end of the three-phase switch is connected with one end of a normally open contact of a main contactor, the other end of the normally open contact of the main contactor is connected with one end of a thermal relay coil, and the other end of the thermal relay coil is connected with a hydraulic driving motor;

in the secondary electric circuit, one end of a normally closed contact of the thermal relay is connected with one end of the AC220, the other end of the normally closed contact of the thermal relay is respectively connected with a movable contact 1, a movable contact 0 and a movable contact 2 of the cam controller, a fixed contact of the cam controller is connected with one end of a main contactor coil, and the other end of the main contactor coil is connected with the other end of the AC 220.

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