Plunger pump hydraulic end
A plunger pump and hydraulic end technology, applied in the field of mechanical engineering liquid pumps, can solve the problems of difficult processing, leakage of liquid cylinders, high hardness of materials, etc., and achieve the effect of strong pressure bearing capacity and easy replacement
Inactive Publication Date: 2018-07-31
刘明选
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Problems solved by technology
Due to the large volume of the hydraulic cylinder, the high hardness of the material, and the difficulty in processing, the leakage of the hydraulic cylinder at the hydraulic end of the plunger pump has always been a big problem that has not been solved.
Method used
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Embodiment Construction
[0012] Below in conjunction with the accompanying drawings and specific embodiments, the present invention will be described in further detail: the cylinder liner of the hydraulic end of the plunger pump of the present invention is composed of a left inner conical outer casing 5, a right inner conical outer casing 8 and a two-way outer conical inner casing. Bushing 6 composition. When assembling, the two inner conical surface casings 5 and 8 of the split body are respectively inserted from the left and right ends of the two-way outer conical surface inner casing, and are connected by a screw 7, and the operation is reversed when disassembling. The inner liner is made of alumina ceramic, the cylinder liner is 455 mm long, the outer diameter of the outer sleeve is 230 mm, the inner diameter of both ends of the outer sleeve is 170 mm, the matching angle between the outer sleeve and the inner sleeve is 3 degrees, the inner diameter of the inner sleeve is 160 mm, and the inner sle...
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The invention discloses a plunger pump hydraulic end, belongs to the technical field of mechanical engineering liquid pumps, and is used for solving the problems of leakage, weak pressure bearing capacity, difficult replacement, high cost and short life. The plunger pump hydraulic end consists of a hydraulic cylinder, a valve base, a gland and a piston, and is characterized in that a cylinder jacket sleeves a two-way outer conical surface inner bushing through screw threads by a left inner conical surface outer sleeve and a right inner conical surface outer sleeve; the piston is mounted into atwo-way inner conical surface outer bushing through screw threads by a left outer conical surface inner core and a right outer conical surface inner core; a ring groove is formed between the hydraulic cylinder inner side surface of the valve base and the hydraulic cylinder outer side surface; and the gland is connected with the hydraulic cylinder through a sealing ring and a ring plate. The plunger pump hydraulic end can be widely applied to liquid pumps.
Description
technical field [0001] The invention relates to a hydraulic end of a plunger pump, which belongs to the technical field of mechanical engineering liquid pumps. Background technique [0002] The existing plunger pumps used in industrial and mining, petroleum, chemical and other industries are generally composed of a power end and a hydraulic end, and the hydraulic end is composed of three main parts: a liquid cylinder, a cylinder liner, and a piston. From the perspective of the matching methods between the cylinder liner inner liner and the outer casing of the hydraulic end and the piston outer liner and the inner core, there are four matching methods: the first is interference fit; the second is that one end of the cylinder liner is provided with a convex The anti-disengagement of the outer sleeve prevents the inner sleeve from moving in one direction; the third is that the inner liner of the cylinder liner and the outer sleeve and the outer liner of the piston and the inner...
Claims
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IPC IPC(8): F04B53/16F04B53/10F04B53/14
CPCF04B53/166F04B53/1087F04B53/14
Inventor 不公告发明人
Owner 刘明选