Plunger high-pressure pump
A high-pressure pump and plunger-type technology, applied in the field of high-pressure pump manufacturing, can solve the problems of shortened service life of parts, severe movement wear, and the axis line is not easy to be in the same axis, so as to achieve simple structure, reduce wear and improve service life. Effect
Inactive Publication Date: 2013-01-16
天津市精诚高压泵制造有限责任公司
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Problems solved by technology
The disadvantage of this device is that: since the push rod and the plunger on the liquid end are directly fixed, due to some small errors in the production, the movement precision of the push rod and the plunger is different, and the axis of the two The line is not easy to always be on the same axis. In the case of high-pressure pump running at high speed, the movement wear is more serious, and the service life of parts is reduced.
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[0019] The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments. like figure 1 As shown, a plunger-type high-pressure pump includes a fluid end 1 and a power end 2, the fluid end is provided with a push rod 3, the inside of the fluid end is provided with a plunger 4, and the top of the push rod is provided with There is a connecting chamber 5, the inner wall of the connecting chamber is provided with an internal thread, and one end of the plunger is arranged in the connecting chamber; a spherical rotational connection is arranged between the top of one end of the plunger in the connecting chamber and the connecting chamber. Pair 6: due to the existence of the spherical rotation connection pair, the plunger can slide in the circumferential direction relative to the connection cavity, and the one end of the plunger located in the connection cavity is provided with a radia...
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The invention belongs to the manufacturing field of a high-pressure pump, in particular to a plunger high-pressure pump. The plunger high-pressure pump comprises a hydraulic end and a power end; the hydraulic end is provided with a push rod; a plunger is arranged in the internal part of the hydraulic end; the plunger high-pressure pump is characterized in that a connection cavity is formed at the top end of the push rod; one end of the plunger is arranged in the connection cavity; a spherical rotating connection set is arranged between the top part of one end of the plunger located in the connection cavity and the connection cavity; a radial bump is arranged at the circumference of one end of the plunger located in the connection cavity; a threaded pressure cover is arranged between the plunger and the connection cavity; the threaded pressure cover is sleeved on the plunger, and the threaded pressure cover is tightly matched with the radial bump. The plunger high-pressure pump provided by the invention has the beneficial effects that the structure is simple, the spherical rotating connection set compensates the micro-error between two components in an axial direction through changing the connection way between the push rod and the plunger; a disc spring compensates the micro-error between two components in the radial direction, thereby reducing the wear between the push rod and the plunger, and prolonging the service life of the two components.
Description
technical field [0001] The invention belongs to the field of high-pressure pump manufacture, in particular to a plunger-type high-pressure pump. Background technique [0002] High-pressure pumps are mainly used as process pumps in petroleum, chemical and fertilizer industries; water injection pumps in oil fields and salt mines; pressure test pumps in steel pipes and pressure vessels; high-pressure cleaning and descaling in construction, shipbuilding, chemical and other industrial fields. At present, the published Chinese patent 200620078466.4 is a five-cylinder horizontal piston pump, which consists of a power end, a fluid end and a base. The power end and the fluid end are arranged on the base. The power end consists of a power input shaft, an eccentric wheel assembly, Composed of connecting rod and crosshead, the eccentric wheel assembly is fixed on the power input shaft, one end of the connecting rod is hinged to the eccentric wheel assembly, the other end is hinged to th...
Claims
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IPC IPC(8): F04B9/10
Inventor 周惠全陈宏川李胜利周巍
Owner 天津市精诚高压泵制造有限责任公司