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Hydraulic hoist with balancing device

A technology of hydraulic hoist and balancing device, which is applied in water conservancy projects, sea area engineering, coastline protection, etc., and can solve problems that affect the service life and quality requirements of hydraulic hoist, unbalanced center of gravity of hydraulic hoist, etc.

Inactive Publication Date: 2015-02-25
YANGZHOU FEILONG PNEUMATIC HYDRAULIC EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The unbalanced center of gravity of the hydraulic hoist used horizontally with a long-stroke single fulcrum affects the service life and quality requirements of the hydraulic hoist

Method used

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  • Hydraulic hoist with balancing device
  • Hydraulic hoist with balancing device
  • Hydraulic hoist with balancing device

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Embodiment Construction

[0010] Such as figure 1 , 2 , 3, the present invention mainly includes an oil cylinder 1, a balancing device 2 is arranged below the oil cylinder 1, and the balancing device 2 includes two oil cylinder supports 2-1 and a fixed base 2-6, and the oil cylinder 1 passes through two oil cylinder supports 2-1 Support, the contact surfaces between the oil cylinder 1 and the two oil cylinder supports 2-1 are arc surfaces respectively. The fixed base 2-6 is arranged below the two oil cylinder brackets 2-1, four vertically arranged guide rods 2-3 are connected above the fixed base 2-1, and the upper ends of each guide rod 2-3 are respectively placed on the Corresponding oil cylinder brackets 2-1 are connected by fastening nuts 2-2, and compression springs 2-4 and adjusting nuts are respectively arranged on the guide rods 2-3 between each oil cylinder bracket 2-1 and the fixed base 2-6 2-5, each compression spring 2-4 is respectively arranged on the top of the corresponding adjustment ...

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Abstract

The invention relates to the field of structures of hydraulic hoists and relates to a hydraulic hoist with a balancing device. The hydraulic hoist comprises an oil cylinder. The balancing device is arranged under the oil cylinder and comprises two cylinder supports and a fixing base. The oil cylinder is supported by the cylinder supports. Contact faces of the oil cylinder and the cylinder supports are arc faces. The upper portion of the fixing base is connected with at least a pair of guide rods vertically arranged. The upper end of each guide rod penetrates the corresponding cylinder support and is connected with the same through a fixing nut. Each guide rod between each cylinder support and the fixing base is provided with a compressing spring and an adjusting nut. The compressing springs are arranged upon the corresponding adjusting nuts respectively. The adjusting nuts are in threaded connection with the corresponding guide rods. During mounting, the compressing springs are adjusted by the adjusting nuts to allow the hoist to stay in a horizontal state, and the nuts are fixed. Once a piston rod extends to run, the gravity center offsets, the upper ends of the guide rods are fixed to the fixing nuts, the lower plate seat is fixed, and the hydraulic hoist is integrally fixed.

Description

technical field [0001] The invention relates to the structural field of hydraulic hoist. Background technique [0002] The hydraulic hoist is the driving device for the gates of water conservancy, water stations and municipal engineering, and consists of two parts: hydraulic system and hydraulic cylinder. Under the control of electrical appliances, the motor drives the oil pump to output pressure oil through the overflow valve to adjust the working pressure of the system, and the direction valve changes the direction of the oil circuit, so as to realize the axial reciprocating movement of the hydraulic cylinder and drive the reciprocating movement of the gate to achieve the purpose of opening and closing the gate. The unbalanced center of gravity of the hydraulic hoist used for long-stroke single fulcrum horizontally affects the service life and quality requirements of the hydraulic hoist. Contents of the invention [0003] The object of the present invention is to overco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B7/20
CPCE02B7/20
Inventor 张永林
Owner YANGZHOU FEILONG PNEUMATIC HYDRAULIC EQUIP CO LTD
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