Hydraulic control device
A control device and hydraulic technology, which is applied in pump devices, fluid pressure actuators, oil supply tank devices, etc., can solve the problems of unfavorable acoustic emission characteristics, unfavorable acoustics, small flexibility, etc., and achieve excellent acoustic performance and compact structure , the effect of suppressing the running noise
Pending Publication Date: 2020-05-01
ROBERT BOSCH GMBH
View PDF12 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] Although one can cope with a small amount of pipe or hose in this arrangement, the freely installable motor-pump arrangement is acoustically disadvantageous
Furthermore, the direct attachment of the cylinders to the connecting block allows little flexibility here too when selecting and arranging the cylinders
Furthermore, the arrangement of the correct branching of the mostly metallic components would entail additional effort when properly mechanically supporting the individual components and overall have unfavorable acoustic emission properties
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0034] according to figure 1 , the hydraulic drive for the bending press has a hydraulic cylinder 2 with a filling valve (Füllventil) 80 (also called a resuction valve) and a hydraulic fluid, usually mineral oil, for actuating the cylinder 2 and Hydraulic control device 1 of the filling valve 80 .
[0035] The hydraulic control device 1 has a control block 3 and a fluid container 5, optionally a second fluid container 5′. The hydraulic control unit is connected to the cylinder 2 and the filling valve 80 by means of lines, that is to say hoses or pipes, at their consumer connections 20 and 22 and at the control connection 24 . Furthermore, the working line 26 runs from the filling valve 80 directly to the fluid container 5 in order to ensure the resuction function.
[0036] The control block 3 has a mounting surface on which, for example, a safety valve 4 is mounted, which can block or release the fluid path from the hydraulic machine 10 to the consumer connections 20 and 22 ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A hydraulic control device according to the invention comprises: a hydraulic control block having a channel, a hydraulic connection and an attachment surface for the valve and / or an insertion bore forthe valve; a pressureless fluid container for hydraulic fluid, the fluid container being arranged with one of its container walls relative to a first side of the control block; a hydraulic machine for conveying hydraulic fluid between at least one of the connections and / or between the fluid container and at least one of the connections; and an electric motor arranged for driving the hydraulic machine. The invention is characterized in that the hydraulic machine is arranged in the loading space in the control block, and in that the suction fluid path is guided through the first side of the control block and the container wall, and in that the hydraulic machine can suck fluid from the fluid container during operation through the suction fluid path.
Description
technical field [0001] The invention relates to a hydraulic control device which is particularly suitable for driving a press, in particular a bending press. Background technique [0002] Such control devices are known in principle. DE 10 2016 119 823 A1 thus shows a hydraulic press control in which a fluid container is provided, to which a valve block in a niche-shaped recess is attached superior. Furthermore, the fluid container has a further separate installation surface for an electric motor which drives a pump arranged in the fluid container. Furthermore, the connection piece is inserted into the fluid container through the freely cut opening. The valve block, cylinder and resuction valve are added to the connection block. [0003] Although one can save the outlay for hoses and pipes by using valve blocks and connecting blocks, the insertion of the connecting blocks into the fluid container requires complex welding work. Furthermore, hoses must be arranged in the f...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): B30B15/16F15B11/18F15B13/04F15B21/041
CPCB30B15/16F15B11/18F15B13/04F15B21/041F15B1/26F15B15/18F15B2211/20515F15B2211/20561F15B2211/27F15B2211/30505F04B23/025F04B17/03
Inventor O.格哈德R.海登费尔德
Owner ROBERT BOSCH GMBH