Energy recovery hydraulic system and concrete conveying pump
A technology of hydraulic system and energy recovery, applied in the direction of fluid pressure actuation system components, fluid pressure actuation devices, mechanical equipment, etc., can solve the problems of energy waste and energy waste, and achieve the effect of improving work efficiency
Active Publication Date: 2013-05-01
SANY HEAVY IND CO LTD (CN)
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
During the buffer braking process of the buffer cylinder, the pressure oil in the buffer chamber is slowly released to the oil tank, resulting in waste of energy, especially in hydraulic systems with frequent reversing, such as concrete pumping systems, the waste of this part of energy more serious
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
[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0023] like figure 1 and figure 2 as shown, figure 1 It is a schematic diagram of an energy recovery hydraulic system in the present invention, figure 2 It is a structural diagram of an energy recovery hydraulic system proposed by an embodiment of the present invention.
[0024] refer to figure 1 and figure 2 , an energy recovery hydraulic system proposed by the present invention, comprising: a first pressure oil source 1, at least one buffer cylinder 2, a first control element 3, a first directional valve 4, and an accumulator 5, wherein: the first pressure oil The source 1 provides pressure oil for the buffer oil cylinder 2. At least one buffer chamber is arranged in the buffer oi...
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
The invention provides an energy recovery hydraulic system, comprising a first pressure oil source, at least one buffer oil cylinder, a first control element, a first directional valve and an accumulator, wherein the first pressure oil source supplies pressure oil to the buffer oil cylinder, at least one buffer cavity is arranged in the buffer oil cylinder, the first control element is arranged on an oil way between the first pressure oil source and the buffer oil cylinder and is used for controlling the buffer oil cylinder to change the direction, at least one buffer cavity of the buffer oilcylinder is connected to the accumulator through the first directional valve, and at least a part of pressure oil in the buffer cavity is recovered into the accumulator when the buffer oil cylinder carries out buffering and braking. The invention also provides a concrete conveying pump of the energy recovery hydraulic system. According to the energy recovery hydraulic system, when the buffer oil cylinder carries out buffering and braking, the pressure oil in the buffer cavity can be recovered.
Description
technical field [0001] The invention relates to the technical field of hydraulic control, in particular to an energy recovery hydraulic system and a concrete delivery pump. Background technique [0002] During the working process of the oil cylinder, when the oil cylinder reaches the end of the stroke of the oil cylinder for reversing, the high-speed moving piston will cause a large impact on the cylinder. In order to reduce the impact of the piston on the cylinder, a buffer cylinder is usually used. When the buffer cylinder is about to reach the end of the stroke, the pressure in the buffer chamber gradually increases to gradually reduce the movement speed of the piston, so as to achieve the purpose of cylinder buffering. During the buffer braking process of the buffer cylinder, the pressure oil in the buffer chamber is slowly released to the oil tank, resulting in waste of energy, especially in hydraulic systems with frequent reversing, such as concrete pumping systems, t...
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 Patent Type & Authority Patents(China)
IPC IPC(8): F15B1/02F15B21/14
Inventor 易小刚刘永东孙丹
Owner SANY HEAVY IND CO LTD (CN)