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1. CN101500728 - Method of operating a hydraulic pressing unit, and hydraulic pressing unit having a hydraulic pump

Office China
Application Number 200780029596.6
Application Date 29.05.2007
Publication Number 101500728
Publication Date 05.08.2009
Grant Number 101500728
Grant Date 12.06.2013
Publication Kind B
IPC
B21J 15/20
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
15Riveting
10Riveting machines
16Drives for riveting machines; Transmission means therefor
20operated by hydraulic or liquid pressure
B25B 27/10
BPERFORMING OPERATIONS; TRANSPORTING
25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; HANDLES FOR HAND IMPLEMENTS; WORKSHOP EQUIPMENT; MANIPULATORS
BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
27Hand tools or bench devices, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
02for connecting objects by press fit or detaching same
10inserting fittings into hoses
CPC
B21J 15/20
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
15Riveting
10Riveting machines
16Drives for riveting machines; Transmission means therefor
20operated by hydraulic or liquid pressure
B25B 27/10
BPERFORMING OPERATIONS; TRANSPORTING
25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
27Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
02for connecting objects by press fit or detaching same
10inserting fittings into hoses
Applicants Klauke GmbH Gustav
古斯塔夫.克劳克有限责任公司
Inventors Frenken Egbert
埃格伯特·弗伦肯
Agents ren yu
北京市柳沈律师事务所 11105
Priority Data 102006026552.1 08.06.2006 DE
Title
(EN) Method of operating a hydraulic pressing unit, and hydraulic pressing unit having a hydraulic pump
(ZH) 运行液压加压设备的方法和带有液压泵的液压加压设备
Abstract
(EN)
The invention relates firstly to a method of operating a hydraulic pressing unit (1), wherein a motion part (7) is moved into a pressing position by the build-up of a hydraulic pressure which results from the filling of a hydraulic space (6) with hydraulic medium from a supply space (5), wherein furthermore the motion part (7) is designed to move back automatically from the pressing position into an end position under the effect of a return spring (15), and the non-return valve (16) is designed to close only after the pressure drops below a certain pressure acting on the non-return valve (16) due to the hydraulic medium running back, and furthermore to such a hydraulic pressing unit (1). In order to specify a method which enables the motion part to be optionally stopped in a position, it is proposed that, in order to have an effect on the hydraulic medium upstream of the non-return valve (16), said hydraulic medium flowing when the latter is open, means (25) are provided which counteract the flow of the hydraulic medium in such a way that a pressure drop which occurs leads to the displacement of the non-return valve (16) into the closed position. In concrete terms, an improvement from the manipulation point of view is achieved in that means (25) are provided which act on the flow of the hydraulic medium in the sense of a pressure drop in such a way that the non-return valve (16) moves into the closed position.

(ZH)

本发明首先涉及一种运行液压加压设备(1)的方法,其中,一运动部分(7)通过以来自存储空间(5)的液压介质填充液压室(6)而产生的液压压力的建立而移动到加压位置,并进一步地将该运动部分(7)设计为在复位弹簧(15)的作用下从加压位置自动移回到端部位置,且回流阀(16)设计为仅在压力低于由于液压介质回流而作用在该回流阀上的一定压力后才关闭。而且,本发明还涉及这样的液压加压设备(1)。为提出一种使得运动部分能选择地停止在一位置上的方法,建议为:为在回流阀(16)前方对于在回流阀(16)打开时流动的液压介质产生影响,提供了反作用于液压介质的流动的装置(25),其反作用使得所出现的压力降导致回流阀(16)位移到关闭位置。具体而言,通过提供装置(25)而实现了从操作技术观点的改进,所述装置(25)对于液压介质的流动从压力下降的意义上起作用,使得回流阀(16)移动到关闭位置。