CN210944578U

CN210944578U - Bridge crane wire rope anticipatory alarm device

Info

Publication number: CN210944578U
Application number: CN201921244061.7U
Authority: CN
Inventors: 王金峰; 赵涛; 郭良锋; 李晓明; 王吉祥
Original assignee: Handan Iron and Steel Group Co Ltd; Hangang Group Hanbao Iron and Steel Co Ltd
Current assignee: Handan Iron and Steel Group Co Ltd; Hangang Group Hanbao Iron and Steel Co Ltd
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2020-07-07
Anticipated expiration: 2029-08-02

Abstract

The utility model relates to a bridge crane wire rope anticipating alarm device, include by the support base of supporting base fixing bolt fastening connection in crane trolley girder steel platform bottom, gyration swing joint erects the back shaft on the support at two of supporting the base, through the bolt fastening at the back shaft both ends and can follow back shaft gyration wobbling pendulum rod, set up the bolster on each pendulum rod, connect the pin that is semi-closed form at two pendulum rod tip, connect at a back shaft side and spacing with back shaft normal running fit's rotation, the alarm of being connected with rotatory spacing signal output line. The device has simple and reliable structure and strong pertinence of the alarm function, can timely alarm the groove disengagement of the fixed pulley steel wire rope of the bridge crane, cut off and stop the power supply, effectively prevent the operation of equipment under the abnormal state and stop serious accidents.

Description

Bridge crane wire rope anticipatory alarm device

Technical Field

The application belongs to the technical field of crane equipment, and more specifically relates to a bridge crane wire rope anticipating alarm device.

Background

The bridge crane is widely applied to the field of industrial manufacturing and production and is mainly responsible for hoisting and transporting goods, equipment and other articles, irregular operation often occurs in the operation process due to uneven operation levels in the operation process of the crane, and under the condition, the equipment safety device is particularly important. When the overhead traveling crane operation, in order to guarantee the coil of strip in aerial lifting operation, it receives balanced holding power to ensure wire rope, rope skipping phenomenon such as crooked drawing of gib head hangs can appear often among the actual operation process, lead to wire rope to be in the inhomogeneous state of atress among the fixed pulley group, take place the bounce-back and break away from the fixed pulley, produce the equipment potential safety hazard of taking off the groove and jumping the groove, operating personnel is difficult for discovering in the driver's cabin simultaneously and takes off the groove, if not in time discovering in the very first time, continue to hoist the operation, very easily cause wire rope's broken string, damage such as disconnected thigh, the fixed pulley back shaft that abrades simultaneously, greatly reduced its life.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a bridge crane wire rope takes off groove alarm device is provided and puts, and the device mechanical structure is simple reliable, and alarming function is with strong points, can in time report to the police to bridge crane fixed pulley wire rope takes off the groove to cut off and the stop power supply, effectively prevented the function of equipment under abnormal condition, stop the emergence of serious accident.

In order to solve the above problem, the utility model discloses the technical scheme who adopts is:

the utility model provides a bridge crane wire rope anticipating alarm device, include by the support base of support base fixing bolt fastening connection in crane trolley girder steel platform bottom, gyration swing joint erects the back shaft on two of support base erects the support, can follow back shaft gyration wobbling pendulum rod through the bolt fastening at the back shaft both ends, the bolster of setting on each pendulum rod, connect the pin that is semi-enclosed form at two pendulum rod tip, connect at back shaft one side and with back shaft rotation complex rotatory spacing, with the alarm of rotatory spacing signal output circuit connection, rotatory spacing signal output circuit still is connected with overhead traveling crane control system.

The utility model discloses technical scheme's further improvement lies in: the action triggering angle range of the rotary contact limited by rotation is within 15 degrees.

The utility model discloses technical scheme's further improvement lies in: the supporting base is U-shaped, and the cross section of the supporting shaft is special-shaped.

The utility model discloses technical scheme's further improvement lies in: the buffer parts are hard springs, and the hard springs are arranged at the middle lower parts of the swing rods.

The utility model discloses technical scheme's further improvement lies in: the stop lever is in a ring shape or a U-shaped semi-closed shape.

The utility model discloses technical scheme's further improvement lies in: the alarm is a buzzer alarm and is arranged in a cab of the overhead travelling crane or below the trolley.

Since the technical scheme is used, the utility model discloses the beneficial effect who gains is: the device has the advantages that the structure is simple, the use is convenient, the sensitivity is high, whether the steel wire rope is out of the groove or not is monitored through the swing rod which swings along with the steel wire rope, when the fixed pulley steel wire rope is out of the groove, the bending radius of the steel wire rope is reduced, the change of the position drives the change of the angle of the swing rod, the position is triggered and limited immediately, an out-of-groove alarm signal is transmitted to a crane control system, the running signals of each mechanism of the crane are cut off, the crane cannot continue to work, meanwhile, the alarm alarms to prompt that the steel wire rope is in an out-of-groove state.

Drawings

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

FIG. 2 is a side view assembly schematic of the present invention;

FIG. 3 is a schematic top view of the stop lever of the present invention;

wherein: 1. the device comprises a stop lever, 2, a stop lever fastening bolt, 3, a swing rod, 4, a hard spring, 5, a support shaft, 6, a swing rod fastening bolt, 7, a support base, 8, a rotation limit, 9, an alarm, 10 and a support base fixing bolt.

Detailed Description

The present invention will be described in further detail with reference to examples.

The utility model discloses a bridge crane wire rope anticipating alarm device, include by the support base 7 of support base fixing bolt 10 fastening connection in crane trolley girder steel platform bottom, gyration swing joint erects back shaft 5 on the support at two of supporting base 7, fix at back shaft 5 both ends and can follow back shaft 5 gyration wobbling pendulum rod 3 through bolt 6, set up bolster 4 on each pendulum rod 3, connect the wire rope pin 1 that is semi-closed form at two 3 tip of pendulum rod, connect at back shaft 5 side and with the rotatory spacing 8 of 5 rotary fit's of back shaft, with the overhead traveling crane alarm 9 of rotatory spacing 8's signal output line connection, rotatory spacing 8's signal output line still is connected with control system.

The range of the action triggering angle of the rotary contact of the rotary limit 8 is within 15 degrees, and the test sensitivity is higher. The supporting base 7 is U-shaped, and the cross section of the supporting shaft 5 is special-shaped. The buffer 4 is a hard spring, and the hard spring is arranged at the middle lower part of each swing rod 3. The stop lever 1 is in a ring shape or a U-shaped semi-closed shape. The alarm 9 is a buzzer alarm 9, and the alarm 9 is arranged in a cab of the overhead travelling crane or below the trolley.

During the use, as shown in fig. 1, the fixed pulley passes through the back shaft, the curb plate is fixed in the draw-in groove of semilune, by the bolt fastening, and stereoplasm spring 4 fixes at back shaft 5 middle part, increases the flexibility performance, and back shaft 5 is supported fixedly by supporting base 7, and rotatory spacing 8 is connected in the one end of back shaft 5, and pendulum rod 3 passes through pendulum rod fastening bolt 6 to be fixed on back shaft 5 to can rotate together with back shaft 5 and swing, and pin 1 passes through pin fastening bolt 2 to be fixed on pendulum rod 3. When the steel wire rope falls off from the fixed pulley groove, the steel wire rope falls onto the fixed pulley supporting shaft, and the steel wire rope immediately touches the stop lever 1, as shown by the dotted line position in fig. 1.

As shown in fig. 2, the supporting base 7 is fixed on the crane trolley platform through the supporting base fixing bolt 10, when the fixed pulley steel wire rope is out of the groove, the bending radius of the fixed pulley steel wire rope is reduced, the falling steel wire rope contacts the stop lever 1, as shown in the dotted line position of fig. 2, the stop lever 1 drives the swing rod 3 to generate an offset swing angle, the swing of the swing rod 3 is converted into the rotation of the supporting shaft 5, and finally, the rotation limiting part 8 is triggered to act to send a signal, the signal is transmitted to the crane control system and the external alarm 9, and the occurrence of serious accidents.

Claims

1. The utility model provides a bridge crane wire rope anticipatory alarm device which characterized in that: the device comprises a supporting base (7) which is tightly connected to the bottom of a steel beam platform of a crane trolley, a supporting shaft (5) which is rotatably and movably connected to two vertical supports of the supporting base (7), swing rods (3) which are fixed at two ends of the supporting shaft (5) through bolts (6) and can swing along with the supporting shaft (5), a buffer piece (4) arranged on each swing rod (3), a stop lever (1) which is in a semi-closed shape and is connected to the end parts of the two swing rods (3), a rotating limit (8) which is connected to one side end of the supporting shaft (5) and is in rotating fit with the supporting shaft (5), an alarm (9) which is connected with a signal output line of the rotating limit (8), and the signal output line of the rotating limit (8) is.

2. The bridge crane steel wire rope groove-releasing alarm device as claimed in claim 1, wherein: the range of the action triggering angle of the rotary contact of the rotary limit (8) is within 15 degrees.

3. The bridge crane steel wire rope groove-releasing alarm device as claimed in claim 2, wherein: the buffer parts (4) are hard springs, and the hard springs are arranged at the middle lower part of each swing rod (3).

4. The bridge crane steel wire rope groove-releasing alarm device as claimed in claim 3, wherein: the supporting base (7) is U-shaped, and the stop lever (1) is annular or U-shaped semi-closed.

5. The bridge crane steel wire rope groove-releasing alarm device as claimed in claim 4, wherein: the alarm (9) is a buzzer alarm (9), and the alarm (9) is arranged in a cab of the overhead travelling crane or below the trolley.