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Hydraulic lifting platform for aloft work

A technology for hydraulic lifting and high-altitude operation, which is used in lifting frames, lifting devices, fluid pressure actuating devices, etc., can solve problems such as hidden dangers to personnel safety and high sealing requirements, and achieve the effect of low sealing requirements and avoiding accidents.

Inactive Publication Date: 2014-05-21
NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The stop position of the lifting platform has high requirements on the sealing of the hydraulic system, especially the hydraulic cylinder. If the oil supply system of the hydraulic system or the hydraulic cylinder leaks, the lifting platform will drop by itself, which will cause serious damage to the personnel performing high-altitude operations. big security risk

Method used

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  • Hydraulic lifting platform for aloft work
  • Hydraulic lifting platform for aloft work
  • Hydraulic lifting platform for aloft work

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] refer to Figure 1 to Figure 4 . A hydraulic lifting platform for high-altitude operations, including a mobile platform 10, a lifting platform 12 and a lifting hydraulic system, the lifting hydraulic system includes a two-way executive circuit, a reversing valve 40, a two-way oil supply circuit, a fuel tank 60, a supplementary Oil circuit and overflow circuit.

[0028] The reversing valve 40 is a three-position, four-way electromagnetic r...

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Abstract

The invention relates to a hydraulic lifting platform for aloft work. The hydraulic lifting platform for aloft work comprises a mobile platform, a lifting platform and a hydraulic lifting system. The hydraulic lifting system comprises at least two execution loops, a reversing valve, at least two oil supply loops and an oil tank; each execution loop comprises a first hydraulic motor. A plurality of ball-screw pairs perpendicular to the mobile platform are arranged on the mobile platform, and the number of the ball-screw pairs is equal to that of the execution loops; each ball-screw pair comprises a ball screw and a ball nut. Bevel gear pairs are arranged between the ball screws and the first hydraulic motors, and the first hydraulic motors are connected with the ball screws through the bevel gear pairs. The ball nuts are evenly and fixedly installed on the bottom surface of the lifting platform. According to the hydraulic lifting platform, by the adoption of a plurality of second hydraulic motors which are coaxially connected in a rigid mode and are equal in output flow and the first hydraulic motors which are equal in displacement, synchronous operation of a plurality of hydraulic components can be precisely achieved; by the adoption of the ball-screw pairs with a self-locking function, the halted state of the lifting platform can be safely kept.

Description

technical field [0001] The invention relates to a hydraulic jacking device, in particular to a hydraulic lifting platform for high-altitude operations. Background technique [0002] In construction sites, street lamp maintenance and other work places, it is often necessary to carry out high-altitude operations. When working at high altitudes, it is necessary to use lifting equipment to complete the lifting and transportation of personnel, etc. The commonly used lifting equipment is a hydraulic lifting platform. [0003] Existing hydraulic lifting platforms are generally hydraulic lifting platforms using a single hydraulic cylinder, or hydraulic lifting platforms using multiple hydraulic cylinders. The hydraulic lifting platform using a single hydraulic cylinder has poor operational stability when performing high-altitude operations; the hydraulic lifting platform using multiple hydraulic cylinders has multiple hydraulic cylinders. When performing high-altitude operations, mu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66F7/14B66F7/08B66F7/28F15B11/22
Inventor 刘毅程少科吴烨余礼赛张美琴
Owner NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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