CN213518535U

CN213518535U - Security alarm system for limiting crane override

Info

Publication number: CN213518535U
Application number: CN202022894133.1U
Authority: CN
Inventors: 肖世刚; 王金良; 张远航
Original assignee: Huake Wuzhou Tianjin Ocean Engineering Co ltd
Current assignee: Huake Wuzhou Tianjin Ocean Engineering Co ltd
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-06-22
Anticipated expiration: 2030-12-07

Abstract

The utility model belongs to the technical field of the platform becomes width of cloth loop wheel machine, especially a security alarm system that restriction loop wheel machine was controlled more, including the cockpit, the inside of cockpit is provided with the controller. The safety protection alarm system for limiting crane override detects whether a heavy object exists on a crane hook through the weight sensor and feeds information back to the controller through the controller, the controller automatically controls whether an override switch works or not, the controller automatically controls the audible and visual alarm to alarm when the override switch is turned on, and the audible and visual alarm automatically stop alarming after the override switch is turned off, so that the problem that an operator forgets to switch back easily due to negligence after the existing crane override is solved, and the operator starts to work and easily generates an accident when another operator operates the crane next time without prior check is solved.

Description

Security alarm system for limiting crane override

Technical Field

The utility model relates to an ocean platform becomes width of cloth loop wheel machine technical field, especially relates to a security alarm system that restriction loop wheel machine was controlled more.

Background

In the ocean platform crane, the amplitude variation angle of the normal hoisting weight is 15-81 degrees, as shown in fig. 1, the crane cannot hoist a heavy object for operation beyond the angle (forced operation is easy to cause the falling of a crane cable), and in order to prevent accidents, when the crane arm reaches the angle, the operation of the crane security system is limited.

In some special cases, however, it is still necessary to continue luffing operation of the boom. For example, the following steps: the suspension arm is placed on the rest stand. A conventional crane has an override function, and the crane can be continuously operated only by switching the crane to the override function. However, the crane operator is easily careless and forgets to switch back after overriding. When another operator operates the crane next time, if the operator does not check the crane in advance, the crane starts to work, so that accidents are easy to happen, and a security alarm system for limiting the crane to be out of control is needed.

SUMMERY OF THE UTILITY MODEL

Based on current loop wheel machine back of controlling more, the operator neglects easily to forget to switch back, when another operator operates the loop wheel machine next time, if do not have the inspection in advance, just start working, the technical problem of easy emergence accident, the utility model provides a restriction loop wheel machine security alarm system who controls more.

The utility model provides a pair of security alarm system that restriction loop wheel machine was controlled more, including the cockpit, the inside of cockpit is provided with the controller, the two-way electric connection of controller has more the accuse switch, the controller has audible-visual annunciator one and audible-visual annunciator two through electric wire electric connection respectively, the controller has weighing transducer through electric wire electric connection.

Preferably, the override switch and the audible and visual alarm are both fixedly installed in the cockpit.

Preferably, the weight sensor is fixedly mounted on the crane hook.

Preferably, the audible and visual alarm II is fixedly arranged outside the cab.

Preferably, the controller has an indicator light through electric wire electric connection, indicator light fixed mounting is inside the cockpit.

The utility model provides a beneficial effect does:

1. by arranging the controller, the weight sensor, the first audible and visual alarm and the second audible and visual alarm, when the crane is used, whether a heavy object exists on a hook of the crane is detected and sensed through the weight sensor, information is fed back to the controller, the controller automatically controls the override switch to work or not, after the override switch is opened, the controller automatically controls the first audible and visual alarm and the second audible and visual alarm to work and alarm, and after the override switch is closed, the first audible and visual alarm and the second audible and visual alarm automatically stop alarming, so that the problem that when the existing crane is overridden, an operator easily forgets to switch back to the crane due to negligence is solved, and when another operator operates the crane next time, the crane starts to work if the crane is not checked in advance, and accidents are easily caused is solved.

Drawings

Fig. 1 is a schematic diagram of a security alarm system for limiting crane override provided by the present invention;

fig. 2 is a structural block diagram of a controller of a security alarm system for limiting the crane to override.

In the figure: 1. a cockpit; 2. a controller; 3. an override switch; 4. a first audible and visual alarm; 5. a sound and light alarm II; 6. and a weight sensor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a security alarm system for limiting crane override comprises a cockpit 1, wherein a controller 2 is arranged in the cockpit 1;

further, the controller 2 is a PLC controller;

the controller 2 is electrically connected with the override switch 3 in a bidirectional mode, and the controller 2 is electrically connected with a first audible and visual alarm 4 and a second audible and visual alarm 5 through electric wires respectively;

further, the type of the audible and visual alarm I4 and the type of the audible and visual alarm II 5 adopt but are not limited to OA-1101J;

the controller 2 is electrically connected with a weight sensor 6 through a wire;

further, the weight sensor 6 is of a model including, but not limited to, Z30A;

the override switch 3 and the audible and visual alarm I4 are both fixedly arranged in the cockpit 1, the weight sensor 6 is fixedly arranged on a crane hook, the audible and visual alarm II 5 is fixedly arranged outside the cockpit 1, the controller 2 is electrically connected with an indicator lamp through a wire, and the indicator lamp is fixedly arranged in the cockpit 1;

by arranging the controller 2, the weight sensor 6, the audible and visual alarm I4 and the audible and visual alarm II 5, when the crane is used, whether a heavy object exists on a hook of the crane or not is detected and sensed through the weight sensor 6, information is fed back to the controller 2, the controller 2 automatically controls the override switch 3 to work or not, the controller 2 automatically controls the audible and visual alarm I4 and the audible and visual alarm II 5 to work and alarm after the override switch 3 is opened, and the audible and visual alarm I4 and the audible and visual alarm II 5 automatically stop alarming after the override switch 3 is closed, so that the problem that an operator easily forgets to switch back to another crane due to negligence after the conventional crane is overridden is solved, and the operator starts to work and easily generates accidents if the crane is not checked in advance when another operator operates the crane next time.

The working principle is as follows: when the crane is used and the crane needs to carry out override work, the pressure information on the crane hook is detected through the weight sensor 6, and whether a heavy object exists on the crane hook is detected;

when a heavy object is arranged on the crane, the weight sensor 6 feeds back weight data information to the controller 2 in the cockpit 1, and after the controller 2 receives the information, the indicator lamp does not work and the override switch 3 cannot be opened and switched;

when no heavy object exists on a crane hook, the weight sensor 6 feeds back weight data information to the controller 2 in the cab 1, the controller 2 automatically controls the indicator light to light, at the moment, a crane driver opens the override switch 3 to carry out override operation, after the override switch 3 is opened, the information is fed back to the controller 2, the controller 2 automatically controls the audible and visual alarm I4 and the audible and visual alarm II 5 to work simultaneously to give an alarm, after the override operation is completed, the crane driver closes the override switch 3, the override switch 3 feeds back the information to the controller 2, and the controller 2 automatically controls the audible and visual alarm I4 and the audible and visual alarm II 5 to be closed.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a security alarm system that restriction loop wheel machine was out of control, includes cockpit (1), its characterized in that: the inside of cockpit (1) is provided with controller (2), the two-way electric connection of controller (2) has more switch (3), controller (2) have audible-visual annunciator (4) and audible-visual annunciator two (5) through electric wire electric connection respectively, controller (2) have weight sensor (6) through electric wire electric connection.

2. The security alarm system for limiting crane out-of-control according to claim 1, characterized in that: the override switch (3) and the audible and visual alarm (4) are both fixedly installed in the cockpit (1).

3. The security alarm system for limiting crane out-of-control according to claim 1, characterized in that: and the weight sensor (6) is fixedly arranged on a lifting hook of the crane.

4. The security alarm system for limiting crane out-of-control according to claim 1, characterized in that: and the audible and visual alarm II (5) is fixedly arranged outside the cockpit (1).

5. The security alarm system for limiting crane out-of-control according to claim 1, characterized in that: the controller (2) is electrically connected with an indicator lamp through an electric wire, and the indicator lamp is fixedly installed inside the cockpit (1).