A scissor type aerial work platform with movable hinge point

An aerial work platform and work platform technology, applied in fluid pressure actuation devices, fluid pressure actuation system components, lifting equipment safety devices, etc. and energy waste, to reduce system energy consumption, ensure reliability, and reduce performance requirements

Active Publication Date: 2021-08-10
HOHAI UNIV CHANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the hinge point of the lifting cylinder of the existing scissor-type aerial work platform is mostly fixed during the lifting process. Since the angle of the scissor mechanism changes in real time with the extension of the lifting cylinder, the position of the hinge point remains unchanged. , leading to unreasonable load-bearing of the lifting cylinder, which is not conducive to improving the performance of the aerial work platform, resulting in waste of resources and energy

Method used

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  • A scissor type aerial work platform with movable hinge point
  • A scissor type aerial work platform with movable hinge point

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Embodiment Construction

[0023] The technical solution of the present invention will be described more clearly and completely below in conjunction with the accompanying drawings in the technical solution of the present invention.

[0024] see figure 1 A platform structure of a scissor-type aerial work platform with a movable hinge point includes a working platform 1.1, a scissor mechanism 1.2, a movable hinge point 1.3, a lifting cylinder 1.4, a lifting displacement sensor 1.5, a hinge point displacement sensor 1.6, Hinge point oil cylinder 1.7 and moving guide rail 1.8; Among them, on the adjacent two groups of scissor bars 1.2.4 and 1.2.5 of scissor mechanism 1.2, beam one 1.2.1, beam two 1.2.2 and beam are distributed from top to bottom 3.1.2.3; the working platform 1.1 is hinged on the top of the scissor mechanism 1.2; the scissor mechanism 1.2 is composed of multiple groups of scissor rods hinged in turn, and the hinge points of two adjacent groups of scissor rods 1.2.4 and 1.2.5 Jointly fixed o...

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PUM

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Abstract

The invention discloses a scissor-type aerial work platform with a movable hinge point, which includes a platform structure and a hinge point control system. The platform structure includes a working platform, a moving guide rail, a lifting cylinder, a lifting displacement sensor, a movable hinge point, Hinge point cylinder, hinge point displacement sensor and scissor mechanism; hinge point control system includes control module, electromagnetic reversing valve, electro-hydraulic proportional valve and pressure oil source. The present invention can ensure that the lifting cylinder is always in a reasonable stress state during the lifting process of the aerial work platform through the real-time regulation of the position of the movable hinge point, and ensures the safety of the working state of the aerial work platform through the locking function of the valve group.

Description

technical field [0001] The patent of the present invention mainly relates to the field of aerial work engineering equipment, in particular to a scissor type aerial work platform with a movable hinge point. Background technique [0002] For scissor-type aerial work platforms, the expansion and contraction of the lifting cylinder drives the angle change of the scissor mechanism, which is converted into the up and down movement of the work platform. At present, the hinge point of the lifting cylinder of the existing scissor-type aerial work platform is mostly fixed during the lifting process. Since the angle of the scissor mechanism changes in real time with the extension of the lifting cylinder, the position of the hinge point remains unchanged. , resulting in unreasonable load-bearing of the lifting cylinder, which is not conducive to improving the performance of the aerial work platform, resulting in a waste of resources and energy. Contents of the invention [0003] In o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66F11/00B66F13/00B66F17/00F15B21/08
CPCB66F11/00B66F13/00B66F17/006F15B21/087
Inventor 张磊朱其
Owner HOHAI UNIV CHANGZHOU
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