CN210973626U

CN210973626U - Lifting anti-slip hook device for crane

Info

Publication number: CN210973626U
Application number: CN201922065539.6U
Authority: CN
Inventors: 曾宁春; 刘佳斌; 陈东标; 罗斌飞; 晏勇斌
Original assignee: Jiangxi Zhongtian Machinery Co ltd
Current assignee: Jiangxi Zhongtian Intelligent Equipment Co Ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-07-10
Anticipated expiration: 2029-11-26

Abstract

The utility model relates to a hoisting equipment technical field specifically is a play to rise and prevent swift current hook device for hoist, including hoisting mechanism, play to rise the motor, set up the play to rise operating handle and programmable controller in the driver's cabin, it passes through the shaft coupling and is connected with hoisting mechanism to rise the motor, it is provided with motor control device to rise the motor next door, motor control device's input and programmable controller's output electric connection, motor control device's output and the control end electric connection who plays to rise the motor, it installs the encoder on the motor to rise, programmable controller's input respectively with the encoder with play to rise operating handle electric connection, programmable controller's output still has the siren through circuit connection. The utility model discloses the effectual security that improves the hoist when using has guaranteed the safety of personnel and article.

Description

Lifting anti-slip hook device for crane

Technical Field

The utility model relates to a hoisting equipment technical field specifically is a play to rise and prevent swift current hook device for hoist.

Background

When a hoisting mechanism of the crane needs to be stopped in the air, the operation of a hoisting motor is stopped, a brake brakes the hoisting mechanism to brake, a heavy object is suspended in the air, but the brake fails due to an accident condition, after the operation of the hoisting motor is stopped, the brake does not act or the brake is not adjusted to cause brake failure, and at the moment, a hoisting hook and a hung object fall down to cause the hook and the object to fall down to the ground, thereby causing great safety accidents.

Therefore, it is necessary to provide a lifting anti-slip hook device for a crane to solve the above-mentioned technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a play to rise and prevent swift current hook device for hoist lifts by crane the in-process when the unexpected trouble that breaks down of stopper, still can prevent that lifting hook and heavy object from falling, the safety of guarantee personnel and article.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a play to rise and prevent swift current hook device for hoist, includes hoisting mechanism, plays to rise the motor, sets up the play to rise operating handle and programmable controller in the driver's cabin, it passes through the shaft coupling and is connected with hoisting mechanism to play to rise the motor, it is provided with motor control device to play to rise the motor next door, motor control device's input and programmable controller's output electric connection, motor control device's output and the control end electric connection who plays to rise the motor, play to rise and install the encoder on the motor, programmable controller's input respectively with the encoder with play to rise operating handle electric connection, programmable controller's output still has the siren through circuit connection.

In order to further optimize the technical scheme, the encoder is an encoder using modbus communication.

In order to further optimize the technical scheme, the alarm is an acousto-optic alarm and is arranged at a position which is easy to see and hear by workers.

Compared with the prior art, the beneficial effects of the utility model are that:

be provided with modbus encoder, the running condition that automated inspection plays to rise the motor, when the stopper breaks down and does not lock hoisting mechanism, can automatic control lifting hook and heavy object upwards move or hover aloft with extremely low speed degree, the effectual security that has improved the hoist when using has guaranteed the safety of personnel and article.

Drawings

FIG. 1 is a schematic structural view of the present invention;

in the figure: 1-a lifting mechanism, 2-a lifting motor, 3-a motor control device, 4-a lifting operating handle, 5-a programmable controller, 6-an encoder and 7-an alarm.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, the present invention provides an embodiment:

a lifting anti-slip device for a crane comprises a lifting mechanism 1, a lifting motor 2, a lifting operation handle 4 and a programmable controller 5, wherein the lifting operation handle 4 and the programmable controller 5 are arranged in a cab, the lifting motor 2 is connected with the lifting mechanism 1 through a coupler, a motor control device 3 is arranged beside the lifting motor 2, the input end of the motor control device 3 is electrically connected with the output end of the programmable controller 5, the output end of the motor control device 3 is electrically connected with the control end of the lifting motor 2, an encoder 6 is arranged on the lifting motor 2, the encoder 6 is an encoder using modbus communication (the modbus communication protocol is an industrial automation bus communication protocol and is widely applied to various industrial automation fields), the input end of the programmable controller 5 is respectively electrically connected with the encoder 6 and the lifting operation handle 4, the output end of the programmable controller 5 is also connected with an alarm 7 through a circuit, the alarm 7 is a sound-light alarm and is arranged at a position which can be easily seen and heard by the staff, and when the brake fails and the alarm 7 gives out sound-light alarm, the brake can be immediately found by the staff and timely checked and processed.

The utility model discloses the theory of operation: when the lifting operation needs to be stopped, a worker puts the lifting operation handle 4 at a zero gear, the programmable controller 5 receives a stop instruction from the lifting operation handle 4 and sends the stop instruction to the motor control device 3 to control the lifting motor 2 to stop operating, meanwhile, the brake is released, the lifting hook is stopped in the air, the operating speed is 0, and the programmable controller 5 detects that a signal output by the encoder 6 is 0. If the brake fails and does not lock the lifting mechanism 1, the lifting hook and the object fall down to drive the lifting motor 2 to rotate, the programmable controller 5 detects that the output signal of the encoder 6 is not 0, the programmable controller 5 immediately outputs a signal to enable the lifting motor 2 to control the lifting hook and the object to move upwards at an extremely low speed through the motor control device 3, or the lifting hook and the object are suspended in the air through excitation of the motor, an alarm signal is output to the alarm 7 at the same time, the alarm 7 gives out an acousto-optic alarm to prompt that the brake fails and slips at the moment, and immediate inspection and maintenance are needed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a play to rise and prevent swift current hook device for hoist, includes hoisting mechanism (1), plays to rise motor (2), sets up play to rise operating handle (4) and programmable controller (5) in the driver's cabin, play to rise motor (2) and be connected its characterized in that through shaft coupling and hoisting mechanism (1): play to rise motor (2) next door and be provided with motor control device (3), the input of motor control device (3) and the output electric connection of programmable controller (5), the output of motor control device (3) and the control end electric connection who plays to rise motor (2), play to rise and install encoder (6) on motor (2), the input of programmable controller (5) respectively with encoder (6) and play to rise operating handle (4) electric connection, the output of programmable controller (5) still has siren (7) through circuit connection.

2. A lifting anti-slip hook device for a crane according to claim 1, wherein: the encoder (6) is an encoder using modbus communication.

3. A lifting anti-slip hook device for a crane according to claim 1, wherein: the alarm (7) is a sound-light alarm and is arranged at a position which is easy to see and hear for workers.