A radial piston hydraulic pump with axial flow distribution and oil distribution by oil distribution conduit
A radial column and shaft flow distribution technology, which is applied to the components of pumping devices for elastic fluids, piston pumps, variable displacement pump components, etc., can solve the problems that are not conducive to improving the service life and resistance loss of parts such as eccentric shafts Many, many friction links, etc., to achieve the effect of compact structure, low cost, and small flow fluctuation
Inactive Publication Date: 2015-11-25
XI AN JIAOTONG UNIV
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Problems solved by technology
Since the transmission adopts the crank linkage mechanism, there are many friction links, so the resistance loss is large, and it is not conducive to improving the service life of the eccentric shaft and other components.
Method used
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Embodiment Construction
[0025] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0026] refer to figure 1 and figure 2 , an axial flow distribution radial piston hydraulic pump adopting oil distribution conduits for oil distribution, including a pump body 28, on the pump body 28, ten groups of plunger groups 4 are installed in total, which are divided into two rows and arranged in parallel, each row The five plunger groups 4 are uniformly distributed radially, and each group of plunger groups 4 includes a plunger cylinder gland 1, a plunger cylinder barrel 2 and a plunger 3, and the plunger cylinder gland 1 is installed at the bottom of the plunger cylinder barrel 2, The plunger 3 is inserted from the other end of the plunger cylinder 2, and can move linearly in the plunger cylinder 2, and the screw passes through the flange of the plunger cylinder gland 1 and the plunger cylinder 2, and screwed into the pump The threaded hole on the body 28 r...
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The invention discloses an axial flow distribution radial plunger hydraulic pump for distributing oil by adopting an oil distribution conduit. Two columns of plunger groups are arranged in parallel in the pump, thereby making full use of the space in the pump. The pump is subjected to motion conversion through a five-star-wheel transmission system, and rolling friction occurs in a transmission loop, thereby reducing the friction force and achieving easiness and reliability. Since the output capability of the pump is the sum of the outputs of all plunger cylinders, the displacement is high. Moreover, when a plurality of cylinders work together, the output peak and valley values of each cylinder compensate for each other, thereby remarkably reducing the total flow fluctuation. The plunger groups of the pump are arranged on a pump body from the outside by using screws, thereby realizing rapid disassembly and bringing convenience to installation and maintenance. In a movable portion in an oil path of the pump, a standard combined seal of a guide ring and a sealing ring is adopted mostly, thereby achieving sealing reliability and increasing the volume efficiency of the pump.
Description
technical field [0001] The invention belongs to the technical field of radial plunger hydraulic pumps, in particular to an axial flow distribution type radial plunger hydraulic pump adopting oil distribution conduits for oil distribution. Background technique [0002] The role of the hydraulic pump is to provide the hydraulic system with pressure oil with a certain bearing capacity. The friction between the internal transmission structures of the hydraulic pump and the leakage of hydraulic oil in the flow channel are the main reasons for the energy loss of the hydraulic pump. Therefore, an internal The hydraulic pump with small friction resistance and good sealing performance is an effective means to improve the energy utilization rate of the system. [0003] Radial piston pumps are widely used in hydraulic systems for high-pressure operations such as die-casting, injection molding, and forging due to their advantages of large flow, low wear, and high volumetric efficiency. ...
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IPC IPC(8): F04B1/04F04B9/02F04B53/00
Inventor 赵升吨郭桐张晨阳刘辰韩晓兰
Owner XI AN JIAOTONG UNIV