Double butterfly coordinated distribution pump
A distribution pump and butterfly technology, applied in the direction of pump, pump control, components of pumping device for elastic fluid, etc., can solve the limited dynamic adjustment ability of system flow and pressure, internal transmission links of plunger pump and friction pair. It can not meet the high dynamic requirements of the pump control system and other problems, so as to achieve the effects of short adjustment response time, good processing and assembly manufacturability, and low friction loss.
Inactive Publication Date: 2016-10-05
BEIHANG UNIV
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Problems solved by technology
Its defect is that the rotary motion of the plunger on the revolution circle needs to be converted into reciprocating motion through a complex mechanism, which results in many internal transmission links and friction pairs of the plunger pump.
For the application requirements of the pump-controlled hydraulic system, the plunger pump needs to change the direction of rotation of the rotating parts to change the flow direction of the oil, or dynamically adjust the inclination of the swash plate to change the flow direction of the oil. The complexity of the structure causes the moment of inertia of the rotating parts Large, so its ability to dynamically adjust the system flow and pressure is limited, which cannot meet the high dynamic requirements of the pump control system
Method used
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[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments.
[0032] Such as figure 1 , figure 2 As shown, the double-butterfly cooperative flow distribution pump provided by the embodiment of the present invention includes at least one pump unit 1. The pump unit 1 includes two pump modules. The two pump modules are connected to the oil circuit through the double-butterfly flow distribution valve block 2. Including the linear motor, both ends of the linear motor are connected with distribution valves, the housing of the distribution valve is fixedly connected with the housing of the linear motor, the spool o...
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The invention provides a double-butterfly collaborative flow distribution pump which comprises at least one pump unit. Each pump unit comprises two pump modules. Each pump module comprises a linear motor, wherein the two ends of the linear motor are connected with flow distribution valves, shells of the flow distribution valves are fixedly connected with a shell of the linear motor, valve elements of the flow distribution valves are connected with a rotor of the linear motor, each flow distribution valve is connected with an oil suction and discharge plunger shell, a plunger is arranged in each oil suction and discharge plunger shell, and each plunger is and the corresponding valve element are integrally connected. The double-butterfly collaborative flow distribution pump is composed of the identical pump units, each pump unit is provided with the two pump modules, machining and assembly manufacturability is good, high-dynamic flow adjusting ability is achieved, and the pump can better meet requirements of a pump control system.
Description
technical field [0001] The invention relates to the technical field of hydraulic transmission, in particular to a double-butterfly cooperative distribution pump. Background technique [0002] Hydraulic technology is one of the important technologies in the field of modern engineering machinery technology. The hydraulic pump is the component that completes the conversion of mechanical energy to hydraulic energy in the hydraulic system. The existing hydraulic pumps mainly include plunger pumps, vane pumps, gear pumps and other forms. The above-mentioned traditional hydraulic pumps are mainly used in open hydraulic systems. Its characteristic is that regardless of the demand of the load, the pump and the motor unit have been running at high speed to complete the conversion of electrical energy to hydraulic energy, and maintain the stability of the system pressure through accumulators and relief valves. , to provide sufficient hydraulic power to the servo valve or proportional v...
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IPC IPC(8): F04B17/03F04B49/12F04B49/22F04B49/00F04B53/12
Inventor 焦宗夏王子蒙李洋张超吴帅
Owner BEIHANG UNIV