Oil cylinder reversing and volume speed adjusting hydraulic system

A technology of volumetric speed regulation and hydraulic system, which is applied in the direction of fluid pressure actuators, servo motors, servo motor components, etc., and can solve the space required by its own weight and layout. The shape and weight of the system have great influence on reliability and easy maintenance. Reduced performance, system shape and weight increase, etc., to achieve the effect of small weight and layout occupied, reduced overall shape and weight, and easy layout

Inactive Publication Date: 2016-05-04
GUIYANG HAIZHILI HYDRAULIC CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This complicates the control, and at the same time reduces reliability and ease of maintenance due to the increase in auxiliary components
[0007] 2) Low transmission efficiency
But for miniature and small devices (such as small he...

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  • Oil cylinder reversing and volume speed adjusting hydraulic system
  • Oil cylinder reversing and volume speed adjusting hydraulic system
  • Oil cylinder reversing and volume speed adjusting hydraulic system

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Embodiment Construction

[0036] The specific implementation, features and effects of a cylinder reversing and volumetric speed regulation hydraulic system proposed according to the patent of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0037] see figure 2 , a hydraulic system for oil cylinder reversing and volumetric speed regulation, using a semi-open and semi-closed hydraulic circuit, including a prime mover 2b that can rotate in both directions and can be adjusted in speed, and a two-way rotary hydraulic pump 3b, and the two-way rotary hydraulic pump 3b sucks oil from the oil tank B1b , The oil inlet and outlet ports of the bidirectional rotary hydraulic pump 3b are respectively provided with a one-way valve A4b and a one-way valve B5b; one side of the two-way rotary hydraulic pump 3b is connected to the rod chamber of the double-acting cylinder 8b, and the other side of the oil port It is connected to the rodles...

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Abstract

The invention discloses an oil cylinder reversing and volume speed adjusting hydraulic system which is characterized in that a semi-closure hydraulic circuit is adopted; the hydraulic system comprises a prime motor (2b) capable of rotating bilaterally and a bilateral rotation hydraulic pump (3b); the speed of the prime motor (2b) is adjustable; the bilateral rotation hydraulic pump (3b) sucks oil from an oil tank B (1b); an oil inlet and an oil outlet of the bilateral rotation hydraulic pump (3b) are provided with a one-way valve A (4b) and a one-way valve B (5b) respectively; an oil port at one side of the bilateral rotation hydraulic pump (3b) is connected to a rod cavity of a double-acting cylinder (8b); an oil port at the other side of the bilateral rotation hydraulic pump (3b) is connected to a rodless cavity of the double-acting cylinder (8b) through a one-way valve (6b); and a hydraulic-control proportional throttle valve (7b) is arranged between an oil inlet way and an oil outlet way of the double-acting cylinder (8b). The micro hydraulic system is suitable for special-purpose minitype heavy load robots, the control is simplified, the transmission efficiency is improved, and the overall appearance and weight of the hydraulic system are reduced.

Description

technical field [0001] The invention belongs to the field of hydraulic pressure, and mainly relates to a hydraulic system for oil cylinder reversing and volume speed regulation, which is suitable for hydraulic drive of linear motion, such as special equipment such as small heavy-duty robots. Background technique [0002] In the traditional technology, when the actuator is an oil cylinder, the ordinary closed hydraulic circuit is not applicable because the flow in and out of the oil cylinder is not equal (unless the oil cylinders are used in pairs, or a double-outlet piston rod type oil cylinder is used), so the reversing and The speed regulation adopts an open hydraulic circuit. like figure 1 Shown is a typical oil cylinder reversing speed regulation circuit. The motor 2a drives the hydraulic pump 3a to rotate, and the hydraulic pump 3a sucks oil from the oil tank A1a. An electromagnetic unloading overflow valve 4a is installed at the outlet of the pump, which is used for...

Claims

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Application Information

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IPC IPC(8): F15B11/08F15B13/04
CPCF15B11/08F15B13/04
Inventor 侯刚杨毛曹明远王佩瑾
Owner GUIYANG HAIZHILI HYDRAULIC CO LTD
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