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A variable-diameter switchable bidirectional drive hydraulic cylinder

A two-way drive, switching technology, applied in the field of hydraulic cylinders, to achieve the effect of reducing the requirements of the oil circuit, reducing the power source of the system, and reducing the weight

Active Publication Date: 2019-06-04
XCMG HYDRAULICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The driving cylinders of the prior art cannot meet the above requirements

Method used

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  • A variable-diameter switchable bidirectional drive hydraulic cylinder
  • A variable-diameter switchable bidirectional drive hydraulic cylinder

Examples

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Embodiment Construction

[0021] The following is a specific embodiment of the present invention, and the present invention will be further described in conjunction with the accompanying drawings.

[0022] Such as figure 1 As shown, a variable-diameter switchable two-way drive hydraulic cylinder, the two ends of the cylinder bottom 4 are respectively installed with a cylinder A1 and a cylinder B7 with different inner diameters. The outer ends of the cylinder A1 and the cylinder B7 are provided with external threads, and the outer ends of the cylinder A1 and the cylinder B7 are also fixed with flanges, so as to be connected with other components.

[0023] A piston rod A2 and a piston A3 fixed at the inner end of the piston rod A2 are fitted inside the cylinder A1, and an end cover A is provided at the end of the cylinder A1. A piston rod B8 and a piston B6 fixed at the inner end of the piston rod B8 are installed in the cylinder B7, and an end cover B is provided at the end of the cylinder B7. Piston ...

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Abstract

The invention discloses a reducing switchable two-way driving hydraulic cylinder, and belongs to the technical field of hydraulic cylinders. A cylinder barrel A and a cylinder barrel B with different inner diameters are respectively mounted on two end surfaces; a piston rod A and a piston A are mounted on the cylinder barrel A; a piston rod B and a piston B are mounted on the cylinder barrel B; a small cavity joint base and a large cavity joint base are respectively arranged on the cylinder barrel A and the cylinder barrel B; oil passing holes communicating with two ends are formed in the piston A and the piston B; and springs are arranged on one sides of rod cavities of the piston A and the piston B. The reducing switchable two-way driving hydraulic cylinder has the following advantages: proper configuration modes can be selected to satisfy multiple demands according to different demands of an engineering machinery main machine on the driving force; the requirements of a system on an oil way are reduced, so that the system has no need to provide multi-pipe oil way (oil feeding, oil returning), the power source of the system can be reduced, and the purposes of energy conservation and consumption reduction are achieved; and meanwhile, the occupied space is reduced, and the weight is reduced.

Description

technical field [0001] The invention relates to the technical field of hydraulic cylinders, in particular to a variable-diameter switchable bidirectional drive hydraulic cylinder. Background technique [0002] As the executive element of the hydraulic system, the hydraulic cylinder has the characteristics of simple transmission structure, flexible action, and can transmit force. It is widely used in construction machinery. Conventional hydraulic cylinders are mostly double-acting hydraulic cylinders, which can only provide unilateral thrust and pull, but in many occasions two-way driving force is required, and different driving forces need to be realized. At the same time, due to the limitation of space and weight of the main engine such as construction machinery, the power oil circuit provided by the system is relatively limited, so the oil circuit sent to the hydraulic cylinder is relatively small. It is always pursued that the hydraulic cylinder can realize one oil circui...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B15/14F15B15/20
CPCF15B15/1409F15B15/1423F15B15/20
Inventor 张虹源褚桂君郑圆圆
Owner XCMG HYDRAULICS CO LTD
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