Flow distribution valve for single pump system
A flow distribution and single-pump technology, applied in the field of hydraulic valves, can solve problems such as increased manufacturing costs, high system manufacturing costs, and difficult guarantees, and achieve the effect of reducing costs and reducing overall machine costs
Active Publication Date: 2018-05-29
武汉嘉仕德机电设备有限公司
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Problems solved by technology
If the load sensing variable pump system is used, the flow range provided is wide and the energy saving effect is good, but the manufacturing cost of the system is high, the assembly and maintenance are difficult, and it is not easy to guarantee
Using a fixed pump system, its rated flow rate is much greater than the flow requirements of some actuators or additional working devices, and the system does not match; if a special pump source needs to be added, the manufacturing cost will increase, and the system will become more complicated.
Method used
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Embodiment Construction
[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0017] Such as Figure 1~4 Shown is a preferred embodiment of the present invention.
[0018] A flow distribution valve for a single pump system comprising
[0019] Valve block 1, valve block 1 is provided with oil inlet P, oil outlet B, main oil outlet A and oil return port T;
[0020] The first passage 11, the first passage 11 has a main valve port 1c for communicating with the oil inlet P and the main oil outlet A, and a secondary valve port 1d for communicating with the oil inlet P and the oil outlet B1;
[0021] The priority compensation spool 3a is set in the first channel 11 and can slide. The priority compensation spool 3a is provided with a main shoulder 3a1 for blocking the main valve port 1c and a secondary stop for blocking the secondary valve port 1d Shoulder 3a2, the first channel at one end of the priority compensation spool ...
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The invention relates to a flow distribution valve for a single pump system, which is characterized by comprising a valve block, a first channel, a two-bit two-way electromagnetic valve, an overflow valve component, and a flow adjusting valve component; the valve block is provided with an oil inlet, an oil outlet, a main oil outlet and an oil returning opening; a priority compensation valve core is arranged in the first channel, the two-bit two-way electromagnetic valve is used for switching the main control valve to connect with the oil returning opening or the main oil outlet; when the pressure in the main control cavity reaches a certain value, the overflow valve component is started, the main control cavity is connected with the oil returning opening; the flow adjusting valve componentis arranged on the valve block and used for controlling the output flow of the main oil outlet. The flow distribution valve for the single pump system is simple and reasonable in structure, convenient to process and able to simplify a single-pump hydraulic system structure; the single-pump hydraulic system after applying the distribution valve can effectively reduce cost and further reduce the cost of the whole machine.
Description
technical field [0001] The invention belongs to the technical field of hydraulic valves, in particular to a flow distribution valve for a single pump system. Background technique [0002] In the hydraulic system of modern industrial machinery and mobile machinery, there are generally multiple actuators or an increasing number of additional working devices to meet the needs of one machine with multiple functions according to the actual situation, and these multiple actuators or different additional work The hydraulic flow required by the device is different. For example, the rated flow required by some actuators in the same hydraulic system is only 1 / 3-1 / 2 of the total flow of the hydraulic system, while the rated flow required by some actuators is the system. total traffic. If the load sensing variable pump system is used, the flow range provided is wide and the energy saving effect is good, but the manufacturing cost of the system is high, the assembly and maintenance are ...
Claims
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IPC IPC(8): F15B13/02
CPCF15B13/026
Inventor 陈艳艳
Owner 武汉嘉仕德机电设备有限公司