Horizontal split-structure large-stroke plunger cylinder

Abstract

The invention discloses a horizontal split-structure large-stroke plunger cylinder. At present, workbenches applied to heavy hydraulic forging presses are mostly driven by hydraulic cylinders, and in order to prevent radial force which is applied to the hydraulic cylinders due to the fact that the workbenches are abraded, the hydraulic cylinders are not in rigid connection with the workbenches. The design has the problem that plungers of the hydraulic cylinders are in single-point-guide-sleeve supporting, after most of plunger bodies enter the hydraulic cylinders, due to the fact that the gravity of the plungers exists and the gravity centers of the plungers are far away from the plunger fulcrums, the heads of the plungers will droop to enable the plunger bodies to be slant, one edges of guide sleeves and seals are accordingly abraded, so that leakage is generated on the hydraulic cylinders, and even device failure is caused. The defect will be more and more obvious along with the increase of the diameters of the plungers, and a novel hydraulic cylinder is required for the heavy forging industry to solve the technical problem. The single hydraulic cylinder is split from the middle into two parts, and a rear guide sleeve is arranged at the position where a front cylinder body is connected with a back cylinder body. By means of the design, original plunger single-point supporting is changed into double-point supporting, and the slant phenomenon after most of the plunger bodies enter the hydraulic cylinders is avoided. The service life of the horizontal split-structure large-stroke plunger cylinder is effectively prolonged, and the use and maintenance cost of a hydraulic machine is reduced.

Description

technical field [0001] The invention belongs to the technical field of heavy forging hydraulic presses. It particularly relates to a horizontal plunger cylinder with a large stroke for a heavy-duty forging hydraulic press. Background technique [0002] At present, the worktables used in heavy-duty forging hydraulic presses are mostly driven by hydraulic cylinders. In order to prevent the radial force acting on the hydraulic cylinders from wear and tear on the worktables, the hydraulic cylinders and worktables are not connected rigidly, but this also brings a problem. : The plunger of the hydraulic cylinder is supported by a single point—a guide sleeve. When most of the plunger body enters the hydraulic cylinder, because the gravity and center of gravity of the plunger are far away from the fulcrum of the plunger, the head of the plunger will sag, causing the plunger body to incline, so that the unilateral wear of the guide sleeve and the seal will As for the leakage of the...

AI Technical Summary

Problems solved by technology

[0002] At present, the worktables used in heavy-duty forging hydraulic presses are mostly driven by hydraulic cylinders. In order to prevent the radial force acting on the hydraulic cylinders from wear and tear on the worktables, the hydraulic cylinders and worktables are not connected rigidly, but this also brings a problem. : The plunger of the hydraulic cylinder is a single point—supported by a guide sleeve

When most of the plunger body enters the hydraulic cylinder, because the gravity and center of gravity of the plunger are far away from the fulcrum of the plunger, the head of the plunger will sag, causing the plunger body to incline, so that the unilateral wear of the guide sleeve and the seal will As for the leakage of the hydraulic cylinder or even the failure of the equipment

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