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Revolving electricity loss control apparatus of tower crane

A tower crane and electric control technology, applied in cranes and other directions, can solve problems such as hidden safety hazards and uncontrollable problems, and achieve the effect of preventing collision accidents and good safety performance

Active Publication Date: 2010-03-24
科曼萨建设机械(杭州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of existing tower crane slewing braking systems that cannot be controlled after power failure and have potential safety hazards, the present invention provides a system that can be manually controlled to stop after power failure, effectively prevent the occurrence of collision accidents caused by inertia, and is safe. High performance tower crane slewing power loss control device

Method used

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  • Revolving electricity loss control apparatus of tower crane
  • Revolving electricity loss control apparatus of tower crane
  • Revolving electricity loss control apparatus of tower crane

Examples

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings.

[0014] refer to Figure 1-Figure 4 , a tower crane rotary power loss control device, including a casing 1, a hydraulic coupling impeller 2 installed in the casing, a gland 3, a bottom cover 4, a brake steel plate 5, a friction plate 6 and an electromagnetic coil 7. The hydraulic coupler impeller 1 is installed on the upper end of the main shaft 8, and the main shaft 8 is sequentially fitted with a gland 3, a brake steel plate 5, a friction plate 6 and an electromagnetic coil 7 from top to bottom. The gland 3 Fixedly connected with the brake steel plate 5, the brake steel plate 5 cooperates with the friction plate 6, the friction plate 6 is fixedly connected with the brake steel plate 5, and the gland 3 is connected with the bottom cover 4 through the return spring 9 , the bottom cover 4 is installed in the casing 1, the output gear 10 is installed at the lower end of ...

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Abstract

A slewing blackout control device of a tower crane comprises a housing, an impeller of a hydraulic coupler arranged in the housing, a gland, a bottom cover, a braking steel disk, a friction disk and amagnetic coil; the gland is fixedly connected with the braking steel disk; the braking steel disk is matched with the friction disk; the friction disk is fixedly connected with the braking steel disk; the gland is connected with the bottom cover by a back spring; the bottom cover is arranged in the housing; the lower end of a main shaft is provided with an output gear. The device further comprises an operating handle arranged in a cab, a compression ring and cam eccentric shafts; the operating handle is connected with a steel wire rope which is connected with the compression ring; two cam eccentric shafts are positioned at the two sides of the upper part of the gland; the bearing of the cam eccentric shafts is arranged in the housing; the two ends of the compression ring are fixedly connected with the cam eccentric shafts respectively; and a travel switch is arranged on the operating handle for controlling the power-on or power-off. The device of can manually control the stop after the blackout, avoid collision accident caused by the inertia, and has good safe performance.

Description

(1) Technical field [0001] The invention relates to a tower crane slewing power loss control device. (2) Background technology [0002] At present, the slewing braking system of tower cranes is generally open, that is, once the power is cut off, the driver cannot control the slewing to stop, and it is easy to cause the hook and hanging objects to hit when they are out of control under the influence of inertia and wind pressure. Dangerous objects such as workers, buildings and high-voltage cables may cause major accidents. (3) Contents of the invention [0003] In order to overcome the deficiencies of existing tower crane slewing braking systems that cannot be controlled after power failure and have potential safety hazards, the present invention provides a system that can be manually controlled to stop after power failure, effectively prevent the occurrence of collision accidents caused by inertia, and is safe. High-performance tower crane slewing power loss control devic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C23/94
Inventor 陈德木潘来根
Owner 科曼萨建设机械(杭州)有限公司
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