Shear fork type aerial work platform with movable hinge point

A technology for aerial work platforms and work platforms, which are applied in the directions of fluid pressure actuation devices, fluid pressure actuation system components, lifting devices, etc., can solve the problems of unfavorable aerial work platform performance, unreasonable load bearing of lifting cylinders, and waste of resources and energy. and other problems to achieve the effect of reducing system energy consumption, ensuring reliability, and reducing performance requirements

Active Publication Date: 2020-06-19
HOHAI UNIV CHANGZHOU
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  • 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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  • Shear fork type aerial work platform with movable hinge point
  • Shear fork 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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Abstract

The invention discloses a shear fork type aerial work platform with a movable hinge point. The shear fork type aerial work platform comprises a platform structure and a hinge point control system, wherein the platform structure comprises an operation platform, a movable guide rail, a lifting oil cylinder, a lifting displacement sensor, the movable hinge point, a hinge point oil cylinder, a hinge point displacement sensor and a shear fork mechanism; the hinge point control system comprises a control module, an electromagnetic reversing valve, an electro-hydraulic proportional valve and a pressure oil source. According to the shear fork type aerial work platform with the movable hinge point, the position of the movable hinge point is regulated and controlled in real time, it can be guaranteed that the lifting oil cylinder is in a reasonable stress state all the time in the lifting process of the aerial work platform, and safety of the working state of the aerial work platform is guaranteed through the locking function of a valve set.

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 Applications(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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