A horizontal three-cylinder plunger reciprocating pump driven by rack and pinion

Abstract

The invention discloses a gear-rack transmission type horizontal three-cylinder plunger reciprocating pump. The gear-rack reciprocating pump comprises a transmission end and a hydraulic end; at the transmission end, mainly, three pairs of non-full gears with the phase difference and three pairs of racks with the phase difference are matched, and plungers and the racks are connected; at the hydraulic end, the plungers are matched with plunger cylinders, valve bodies are matched with check valves, the plunger cylinders are connected with the valve bodies, and the plunger cylinders are connected with transmission cases; and according to the connection between each plunger cylinder and the corresponding transmission case, a newly-designed gland plate component is utilized, one end of the gland plate component is used for being connected with the corresponding plunger cylinder and pressing a seal in the plunger cylinder, and the other end of the gland plate component is used for assembling a linear bearing and being connected with the corresponding transmission case. According to the gear-rack transmission type novel horizontal three-cylinder plunger reciprocating pump, the output flow and the pressure impulsiveness of the reciprocating pump are basically eliminated in theory, the interior structure of the reciprocating pump is simplified, and the mechanism failure rate is decreased; and operation is stable, reversing is quick, a precise electric control system does not need to be configured, and the development investment is greatly reduced.

Description

technical field [0001] The invention belongs to the field of three-cylinder reciprocating pumps, and is especially suitable for occasions with high requirements on flow and pressure pulsation, so as to provide a hydraulic source with relatively stable flow and pressure. Background technique [0002] The reciprocating pump is the earliest pump product, which has a strong professional support and is widely used. In the machinery industry, the output of reciprocating pumps occupies a large proportion, and with the development of modern science and technology, the requirements for reciprocating pumps in various departments of the national economy are also increasing, and even become one of the key equipment. Reciprocating pumps are widely used in petroleum, chemical, metallurgy, textile, construction, shipbuilding, papermaking, pharmaceutical and other industries. [0003] The longest used reciprocating pump in real life is the crank connecting rod reciprocating pump. The cran...

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Problems solved by technology

[0006] However, linear motor reciprocating pumps also have many unstable factors: the application of large-thrust linear motors has not been popularized; the startup of linear motors is unstable; linear motors cannot adapt to extremely harsh working environments; A sophisticated electronic control system increases the difficulty of development

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