公开(公告)号：US20150345520A1

公开(公告)日：2015-12-03

申请号：US14649303

申请日：2013-11-12

Applicant: KOMATSU MINING GERMANY GMBH

Inventor： Henry Schwarz ,  Christian Hess ,  Oliver Martens

IPC: F15B15/22 ,  F15B11/048

CPC classification number: F15B15/224 ,  E02F9/2214 ,  E02F9/2271 ,  E02F9/2296 ,  F15B11/0413 ,  F15B11/048 ,  F15B2211/20546 ,  F15B2211/30505 ,  F15B2211/50518 ,  F15B2211/5153 ,  F15B2211/6652 ,  F15B2211/755

Abstract: A hydraulic cylinder with end position damping includes at least one cylinder in which there is arranged at least one piston which is connected to at least one piston rod and can be moved in the axial direction, wherein the cylinder is subdivided by the piston into a piston side and a rod side and the hydraulic oil necessary for actuating the piston is pumped by a hydraulic pump via inlet and outlet lines through inlet and outlet openings provided on the cylinder, wherein the cylinder is assigned a mechanical prethottling via which, during the movement of the piston, the hydraulic oil can be discharged on the rod side through a first bore until the piston, during its movement, closes the first bore and the hydraulic oil is thus discharged through a second bore, wherein, at a preset pressure, the mechanical prethrottling means forces the hydraulic pump into an electronically regulated pressure cutoff function which reduces the delivery rate of the hydraulic oil and the piston can be moved into its end position in a braked manner.

Abstract translation: 具有端部位置阻尼的液压缸包括至少一个气缸，其中布置有至少一个活塞，其连接到至少一个活塞杆并可沿轴向移动，其中气缸由活塞细分成活塞 侧面和杆侧，并且用于致动活塞所需的液压油通过入口和出口管线通过设置在气缸上的入口和出口开口由液压泵泵送，其中气缸被分配有机械预调节，通过该机械预调节， 活塞，液压油可以通过第一孔排放到杆侧，直到活塞在其运动期间关闭第一孔时，液压油因此通过第二孔被排出，其中在预定的压力下，机械 节流装置意味着液压泵进入电子调节的压力切断功能，这降低了液压油的输送速率，活塞可以被移动 以制动方式进入其最终位置。