Tower crane rotary speed reduction control device in emergency power failure state

A tower crane and emergency power-off technology, which is applied to cranes and other directions, can solve the problems of steel wire rope collision, easy car slippage, voltage fluctuation, etc., and achieve the effects of preventing tower shaking, reasonable structural design, and reasonable brake operation

Pending Publication Date: 2018-05-22
RIZHAO JINHONG CONSTR ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] During the operation of tower cranes, when large and medium-sized equipment such as tower cranes and pile drivers are operating at the same time, voltage fluctuations are prone to occur and cause power outages. When there is a sudden power failure, the boom of the tower crane is easy to Th

Method used

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Example Embodiment

[0020] In order to clearly illustrate the technical features of the solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0021] like Figure 1-2 As shown, a tower crane slewing deceleration control device in an emergency power-off state includes a braking mechanism installed on the tower crane slewing device 20 and a foot pedal 15 arranged in the cab, and the braking mechanism includes a housing 4 There is a screw rod in the shell 4, one end of the screw rod movably passes through the side wall of the shell 4 and is connected to the brake pad 9 of the coupler 19 close to the tower crane slewing device 20, and the other end of the screw rod movably passes through the shell 4 and the brake pad 9 The lever 6 is movably connected, one end of the brake lever 6 is hingedly arranged on the outer side of the housing 4, and the other end is connected with one end of the brake wire 13. The brake

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PUM

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Abstract

The invention relates to a tower crane rotary speed reduction control device in an emergency power failure state. The tower crane rotary speed reduction control device comprises a brake mechanism anda pedal, wherein the brake mechanism is arranged on a tower crane rotary device and comprises a casing; the pedal is arranged in a cab; a screw rod is arranged in the casing; one end of the screw rodmovably penetrates out of the side wall of the casing to be connected with a brake block of a coupler near the tower crane rotary device; the other end of the screw rod movably penetrates out of the casing to be movably connected with a brake rod. By using the scheme, the structural design is reasonable; under the condition that the tower crane suddenly generates power failure, the tower crane canbe controlled to brake; the collision of a hanging arm of a tower crane with other tower crane or building under the inertial effect can be prevented; in addition, the braking distance is controlledthrough manually controlling the pedaling intensity of the pedal; the occurrence of lock phenomenon can be reduced; the tower body swinging due to emergency braking can be prevented; the braking operation is more reasonable; safety guarantee is provided for building operation.

Description

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Claims

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Application Information

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Owner RIZHAO JINHONG CONSTR ENG
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