Stage hoist

A winch and stage technology, applied in the direction of hoisting device, spring mechanism, etc., to achieve the effect of enhancing safety and simple mechanism

Inactive Publication Date: 2010-01-06
吴大文
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, people are not allowed to stand under the hoisting objects of the known hoist, and the stage lights and curtains are lifted to a certain height by the stage hoist to hang and fix the heavy objects with slings, but this cannot meet the needs of lifting and fixing the suspended heavy objects at any position. Lifting requirements for electronic screens in large gymnasiums up to tens of tons

Method used

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Examples

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Effect test

specific Embodiment approach

[0016] The specific implementation, non-limiting examples are as follows:

Embodiment

[0017] Example: Combined Figure 1-3 , the present embodiment stage winch comprises: band disc brake, frequency conversion motor 1 of encoder, speed reducer 2, large-diameter reel 3, one end of reel rotating shaft is erected on the frame 5 with bearing block 4, the reel rotating shaft The other end is erected on the frame 5 with the bearing block 12 loaded with the overload device, so as to prevent the phenomenon of overload suspension. A wire rope 6 is wound on the reel and the wire rope is suspended with a hook 7. Ratchets 8 are fixedly connected to the flanges at both ends of the reel respectively, and two interlocking ratchets 8 are arranged to cooperate with the two ratchets respectively. Claw 9, the two pawls are coaxial and the pawl shaft 10 is rotatably arranged on the frame 5, and the pawl shaft is driven to rotate and locked by a motor 11 fixedly connected to its shaft end.

[0018] In the specific setting, the safety factor of the hook, wire rope, reel, ratchet and...

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Abstract

The invention discloses a stage hoist which comprises a winding drum with rotating axles arranged at the both ends and rotatably erected on a stand, wherein the winding drum is driven by a motor through a speed reducer and wound with a steel wire rope, a hanging hook is hung on the steel wire rope, ratchet wheels are respectively and fixedly connected on flanges at the both ends of the winding drum, two linkage ratchets which are used by being matched with the two ratchet wheels are arranged on the flanges at the both ends of the winding drum, the two ratchets are coaxial, and ratchet shafts can be rotatably arranged on the stand and driven by motors fixedly connected at the shaft ends and are locked. The invention has the advantages that the heavy objects can be safely hoisted and conveniently hung in the place to stay, and an electric hoisting mechanism with safe and convenient use is provided for the stage; and since the ratchet wheels are only installed on the flanges of the winding drum and braked by the ratchets, the stage hoist is simple and does not have damage to the steel wire rope.

Description

Technical field: [0001] The invention relates to an electric winch, in particular to a stage winch capable of safely hanging heavy objects. Background technique: [0002] At present, people are not allowed to stand under the hoisting objects of the known hoist, and the stage lights and curtains are lifted to a certain height by the stage hoist to hang and fix the heavy objects with slings, but this cannot meet the needs of lifting and fixing the suspended heavy objects at any position. Lifting requirements for electronic screens in large gymnasiums up to tens of tons. The foreign stage hoist uses a wire rope braking device (similar to clamping the wire rope at the upper end) to damage the wire rope. Invention content: [0003] In order to overcome the defects of the prior art, the object of the present invention is to provide a stage winch, which can not only safely hoist heavy objects to the required position, but also conveniently and safely hang the heavy objects, so t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66D1/00B66D1/12B66D1/58B66D5/34
Inventor 吴大文
Owner 吴大文
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