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Steel pipe straightening machine hydraulic control system for quick opening cylinder and upper roll balance cylinder

A technology of hydraulic control system and balancing cylinder, which is applied to mechanical equipment, fluid pressure actuating devices, servo motors, etc., can solve the problem that the effect of eliminating hydraulic shock is not obvious, and can eliminate hydraulic shock, save costs, and protect sealing. Effect

Active Publication Date: 2017-07-18
TAIYUAN HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the effect of eliminating hydraulic shock is not obvious

Method used

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  • Steel pipe straightening machine hydraulic control system for quick opening cylinder and upper roll balance cylinder
  • Steel pipe straightening machine hydraulic control system for quick opening cylinder and upper roll balance cylinder

Examples

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Embodiment Construction

[0029] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.

[0030] Such as figure 2 As shown, this embodiment discloses a hydraulic control system for a steel pipe straightening machine used for quick opening cylinders and upper roll balance cylinders. The steel pipe straightening machine hydraulic control system used for the quick opening cylinder and the upper roller balance cylinder includes the quick opening cylinder hydraulic control circuit and the upper roller balance cylinder...

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Abstract

The invention discloses a hydraulic control system for a quick opening cylinder and an upper roll balance cylinder of a steel tube straightening machine. The hydraulic control system comprises a quick opening cylinder hydraulic control loop and an upper roll balance cylinder hydraulic control loop, wherein the quick opening cylinder hydraulic control loop comprises a high-low pressure oil source selecting device, an oil inlet throttling device, a high-pressure compensating device and an oil return throttling device; the upper roll balance cylinder hydraulic control loop comprises a first electromagnetic reserving valve connected to a rod cavity of the upper roll balance cylinder, an energy storage assembly and a three-way pressure relief valve which is selectively communicated to the rod cavity and a high-pressure oil source. The hydraulic control system for the quick opening cylinder and the upper roll balance cylinder of the steel tube straightening machine can effectively eliminate hydraulic impact of the quick opening cylinder, can prolong the service life of the quick opening cylinder, saves energy and reduces consumption, saves cost and effectively protects sealing of the quick opening cylinder.

Description

technical field [0001] The invention relates to a hydraulic control system, in particular to a hydraulic control system for a quick opening cylinder and an upper roll balance cylinder of a steel pipe straightening machine. Background technique [0002] Steel pipe straightening machine is an important equipment in steel pipe production. The control of the quick opening cylinder and the balance cylinder of the upper roll is the key to the hydraulic control system of the straightener. When straightening the steel pipe, the upper straightening roller needs to be quickly pressed down and raised quickly, so as to prevent the end of the steel pipe from colliding with the upper straightening roller. The quick pressing down and quick lifting action of the upper straightening roll is completed by the quick opening cylinder and the upper roll balancing cylinder. Due to the relatively large bore of the quick-opening cylinder and the full-stroke work, the movement speed is very fast, r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B11/00F15B13/02
CPCF15B11/00F15B13/02
Inventor 姜浩志
Owner TAIYUAN HEAVY IND
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