A triple double-acting ball screw reciprocating pump
A ball screw, double-acting technology, used in pumps, pump devices, liquid variable capacity machines, etc., can solve the problems of difficulty in popularization, high price, complex control system, etc., and achieves small displacement unevenness and response. Fast and simple system structure
Inactive Publication Date: 2015-09-16
SOUTHWEST PETROLEUM UNIV
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Problems solved by technology
The linear motor reciprocating pump has the advantages that other reciprocating pumps do not have. Its transmission structure is simple, high in efficiency, convenient in control, high in precision, and has no fluctuation in theoretical flow. The magnetic effect makes it difficult to popularize it under the current application conditions. So far, the linear motor reciprocating pump is in the research and development stage of simulation experiments and theory.
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Embodiment Construction
[0012] The present invention will be further described below in conjunction with accompanying drawing.
[0013] Such as figure 1 , figure 2 , image 3 As shown, a triple double-acting ball screw reciprocating pump of the present invention is mainly composed of a first special nut slider 28, a second special nut slider 29, a third special nut slider 1, a first AC servo motor 13, a second special nut slider Two AC servo motors 8, third AC servo motors 6, shaft couplings 14, ball screws 16, first joint first piston rods 30, first joint second piston rods 17, second joint first piston rods 31, The second piston rod 19 of the second joint, the first piston rod 32 of the third joint, the second piston rod 21 of the third joint, the piston 3, the first live working fluid cylinder 9 of the first joint, and the second working fluid cylinder 18 of the first joint , the second first working fluid cylinder 7, the second second working fluid cylinder 20, the third first working fluid c...
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The invention relates to a triple double-acting ball screw reciprocation pump which is used in the industries of oil, chemical industry, mining and the like. The triple double-acting ball screw reciprocation pump comprises a special nut sliding block, an alternating current servo motor, a coupling, a ball screw, a piston rod, a piston, operation hydraulic cylinders, a suction valve, a discharge valve, a position detection sensor, a data acquisition card, a control computer and a driver. The alternating current servo motor is linked with the ball screw to be arranged by mutually paralleling to the piston rod, the ball screw and the piston rod are connected through the special nut sliding block to move in a transmitting mode, and the ball screw drives the special nut sliding block to perform leftward and rightward reciprocating movement, so that the left and right operation hydraulic cylinders are operated, and a single operation process is completed. The special nut sliding block comprises a nut, a gasket, a bolt, a screw nut and a sliding block. The triple double-acting ball screw reciprocation pump has the advantages that the transmission is stable, the efficiency is high, the noise is low, the servo system control accuracy is high, the unevenness of displacement and the displacement fluctuation are small, the large displacement is achieved, and the whole system structure is simple and mutually independent.
Description
technical field [0001] The invention relates to a triple double-action ball screw reciprocating pump used in petroleum, chemical, mining and other industries. Background technique [0002] At present, reciprocating pumps are widely used at home and abroad. They are mainly composed of gear transmission, crankshaft, connecting rod and piston. The performance is poor, and it is difficult to meet the requirements of modern drilling technology, acid fracturing technology and water injection production technology. The existing hydraulically driven reciprocating pump has the advantages of long stroke, low stroke frequency, easy control of the movement law of the piston, stepless speed regulation, etc., and it is mainly in the research and development stage in China today. The linear motor reciprocating pump has the advantages that other reciprocating pumps do not have. Its transmission structure is simple, high in efficiency, convenient in control, high in precision, and has no fl...
Claims
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IPC IPC(8): F04B17/03F04B23/06F16H25/22
Inventor 何畏周晓敏汤海平唐剑兵
Owner SOUTHWEST PETROLEUM UNIV