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Rotary column type portal crane slewing anchoring device

A portal crane and slewing anchoring technology, applied in cranes and other directions, can solve the problems of passive rotation of cranes and hidden dangers of equipment safety, and achieve the effect of improving the scope of use and improving the safety of wind resistance.

Active Publication Date: 2016-05-04
JIANGSU HUACHENG INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large windward area of ​​large-scale portal cranes, if there is a strong wind during non-working periods, when the wind-loaded rotational moment of the crane itself is greater than the limit torque coupling friction torque of the slewing mechanism, the portal crane will rotate passively, which will bring pressure to the equipment near the crane. to safety hazard

Method used

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  • Rotary column type portal crane slewing anchoring device
  • Rotary column type portal crane slewing anchoring device

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Embodiment Construction

[0017] see figure 1 — figure 2 , the present invention relates to a rotary anchoring device for a column type portal crane, comprising a fixed base 1 and a rotating base 2, the rotating base 2 is welded to the lower column of the portal crane, the fixed base 1 is connected to the door of the portal crane frame welding, the rotating base 2 is located above the fixed base 1, and the lower guide rod seat 3 and the upper guide rod seat 4 are respectively installed on the corresponding positions of the fixed base 1 and the rotating base 2. A guide rod 5 is arranged in the seat 3 and the upper guide rod seat 4, and the guide rod 5 is connected with the hydraulic push rod 6 installed on the fixed base 1, and the guide rod 5 can be guided on the upper guide rod seat 4 and the lower guide rod seat. Rod base 3 moves inside, and a limit switch 7 is installed on the upper guide rod base 4. When the rotary column portal crane is not working, the boom of the crane is first rotated in plac...

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Abstract

The invention relates to a rotation anchoring device of a slewing pillar type gantry crane. The rotation anchoring device is characterized by comprising a fixed base (1) and a rotary base (2), wherein a lower guide rod base (3) and an upper guide rod base (4) are respectively arranged at corresponding positions of the fixed base (1) and the rotary base (2), guide rods (5) are arranged in the lower guide rod base (3) and the upper guide rod base (4) and are connected with a hydraulic push rod (6) arranged on the fixed base (1), and a limit switch (7) is arranged on the upper guide rod base (4). The rotation anchoring device can be suitable for a gantry crane which is incapable of using three lines of roller type rotary large bearings, and has the advantages of improving the wind-resistant safety of the slewing pillar type gantry crane under a non-working condition and enlarging the use range of the gantry crane.

Description

technical field [0001] The invention relates to a rotary anchoring device for a rotary column type portal crane. It belongs to the technical field of hoisting machinery. Background technique [0002] The slewing support device provides a stable support for the slewing part of the gantry crane, and transmits the pressure and moment from the slewing part to the gantry. Due to its great weight, large portal cranes are limited by the specifications of the slewing bearings. The slewing mechanism of large portal cranes adopts a thrust bearing type slewing mechanism. Due to the large windward area of ​​large-scale portal cranes, if there is a strong wind during non-working periods, when the wind-loaded rotational moment of the crane itself is greater than the limit torque coupling friction torque of the slewing mechanism, the portal crane will rotate passively, which will bring pressure to the equipment near the crane. to safety hazards. Contents of the invention [0003] The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C23/86B66C23/94
Inventor 孟庆国
Owner JIANGSU HUACHENG INDAL
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