Jacking-up mechanism of sleeve roller chains

A sleeve roller chain and jacking mechanism technology, which is applied in the field of lifting machinery, can solve problems such as installation, use restrictions, complex structure of key parts, and deep machine pit, and achieve the effects of convenient manufacture, simple structure, and reliable transmission

Inactive Publication Date: 2011-11-23
SBS STAGE EQUIP TECH HANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Except for the latter two, the aforementioned structures all have the disadvantages of high equipment itself and deep machine pits, which limit installation and use under ce

Method used

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  • Jacking-up mechanism of sleeve roller chains
  • Jacking-up mechanism of sleeve roller chains
  • Jacking-up mechanism of sleeve roller chains

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0031] See Figure 1~Figure 11 Shown: A sleeve roller chain jacking mechanism, which includes a drive box 6 and a roller chain 3 with U-shaped attachments. The standard three-row (three rows in this embodiment) or multi-row U-shaped The length of the U-shaped attachment 3.2 on the roller chain of attachment 3.2 is changed to two chain pitches (that is, the longitudinal length of the U-shaped attachment is changed to 2p, and p is the chain pitch), so that the chain links that connect end to end have U-shaped attachments The end faces are tightly abutted so that the chain cannot be bent, forming a rigid top column that bears pressure on one side. A protruding locking pin 3.3 is provided on the outer plane of each U-shaped attachment; at the top end of the roller chain 3 A top plate 2 is connected, and a downwardly extending locking steel belt 4 is connected to the outer plane side of the U-shaped accessory under the top plate 2, and the locking steel belt 4 is provided with a cor...

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PUM

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Abstract

The invention relates to a jacking-up mechanism of sleeve roller chains, which comprises a driving box body and roller chains with U-shaped accessories, wherein the lengths of the U-shaped accessories on three rows or multiple rows of the roller chains with the U-shaped accessories are changed to pitch lengths of two chain links, thereby enabling the end surfaces of the U-shaped accessories of the chain links in head-to-tail connection to abut against each other precisely, preventing the chains from bending and forming a rigid shore bearing a pressure on one side; a protuberant locking pin is arranged on the outer plane of each link of the U-shaped accessory; an ejector plate is connected at the upper end of an ejector of the roller chains, one side of the outer plane of the U-shaped accessories below the ejector plate is connected with a locking steel strip extending downwards and locking holes which are arranged and correspondingly matched with locking pins on the outer planes of both the links of the U-shaped accessories are arranged on the locking steel strip. The jacking-up mechanism of the sleeve roller chains has the beneficial effects that the jacking-up mechanism has the characteristics of a full-rigid column and the flexible chains, thereby enabling the self-height of a lifting table to be minimal under reliable jacking-up; the jacking-up transmission has the characteristics of reliability in transmission and high efficiency of the ordinary chains; with the help of local improvement of standard general parts, the structure is simple, the manufacturing is convenient and the cost is low.

Description

technical field [0001] The invention relates to the technical field of lifting machinery. It is a performing arts equipment used for a theater compensation lifting platform or a small lifting stage. It can also be used for load lifting in other occasions. It belongs to a special mechanical device and is a sleeve roller chain lifting mechanism. . Background technique [0002] At present, the lifting mechanisms in the known theater compensation lifting platform or small lifting stage and other lifting platform structures include screw-nut straight-top type, oil cylinder straight-top type, scissors support jack-up type, wire rope (or chain) pumping mechanism, etc. Pull the slide bar to lift step by step, chain lift, wire rope lift, large spiral lifting structure of Canadian GALA company and rigid chain lifting structure of French SERAPID company, etc. The above mechanisms are used in different occasions and different requirements for lifting platforms, and all have their own c...

Claims

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Application Information

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IPC IPC(8): E04H3/26B66F11/00
Inventor 魏发孔吕圣龙刘明强
Owner SBS STAGE EQUIP TECH HANGZHOU
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