CN209990621U

CN209990621U - Double-ball high-pressure material pumping pump

Info

Publication number: CN209990621U
Application number: CN201920343843.XU
Authority: CN
Inventors: 李向志; 周生俊
Original assignee: PHILIP AUTOMATION (SHENYANG) Co Ltd
Current assignee: PHILIP AUTOMATION (SHENYANG) Co Ltd
Priority date: 2019-03-19
Filing date: 2019-03-19
Publication date: 2020-01-24
Anticipated expiration: 2029-03-19

Abstract

The utility model relates to a two ball high pressure pump pumps, it includes the part of bleeding on upper portion and the hydraulic pressure part of lower part, and the cover has the lower seal circle on the plunger, and plunger upper portion is equipped with the check valve assembly, and lower pump barrel bottom is equipped with down the check valve assembly, and the lower seal circle forms for the stack of under shed's multilayer V-arrangement sealing washer, is equipped with compression spring on the plunger of lower seal circle below. In the optimized scheme, an oil cup is sleeved on a piston rod at the upper part of a sealing cover, and an oil absorption lubricating cotton felt sleeve is sleeved on a piston rod at the bottom of the oil cup. The utility model provides the high life of lower seal circle improves the sealing performance who takes out material pump hydraulic pressure part, has reduced the pump body and has leaked, improves infusion stability.

Description

Double-ball high-pressure material pumping pump

Technical Field

The utility model relates to a material pump technical field, concretely relates to two ball high pressure material pumps.

Background

The high-pressure high-viscosity liquid pumping pump mostly adopts a plunger pump, the sealing requirement of the plunger pump is very high in order to keep the pump to run stably, and the sealing life of the sealing ring is short due to the fact that polyurethane raw materials are easy to crystallize and crystallized materials are easy to hang scales on the sealing ring. In the process of conveying materials by a pump body, thin layers of raw material liquid can be attached to the surfaces of a sealing ring, a piston rod and a hydraulic cylinder, after the operation is stopped, raw materials are crystallized, when the operation is stopped again, the sealing ring can be gradually damaged under the abrasion of crystallized particles, particularly, if the sealing ring outside a plunger is not tightly sealed, the pressure of the pump body is reduced, internal leakage or external leakage occurs, the service life is slightly influenced, and some corrosive, flammable and explosive raw materials and a conveying system are not allowed to leak completely, so that the sealing reliability is very necessary.

Disclosure of Invention

An object of the utility model is to solve above-mentioned problem, provide a two ball high pressure pump pumps, it has solved the not tight problem of sealing that plunger external seal wearing and tearing caused.

In order to solve the above problem, the utility model discloses a technical scheme as follows:

the utility model provides a two ball high pressure pump for material, its includes the part of bleeding on upper portion and the hydraulic pressure part of lower part, the last pump barrel of hydraulic pressure part and the lower pump barrel of the part of bleeding pass through the spliced pole and connect, its characterized in that, the extraction rod of the part of bleeding is connected with the piston rod of hydraulic pressure part, lower pump barrel top is equipped with sealed lid and last sealing washer, the plunger is connected to the piston rod bottom, the cover has the lower sealing washer on the plunger, plunger upper portion is equipped with the check valve assembly, be equipped with the discharge gate on the lower pump barrel on plunger upper portion, lower pump barrel bottom is equipped with lower check valve assembly, a serial communication port, the lower sealing washer forms for the stack of open-ended multilayer V-arrangement sealing washer down, be equipped with compression spring on the plunger of lower sealing washer below, the compression spring top.

According to the double-ball high-pressure material pumping pump, the piston rod at the upper part of the sealing cover is sleeved with the oil cup, the piston rod at the bottom of the oil cup is sleeved with the oil-absorbing lubricating cotton felt sleeve, and the oil cup and the oil-absorbing lubricating cotton felt sleeve are fixed at the top of the sealing cover.

Compared with the prior art, the utility model discloses favourable effect does:

in the process that the plunger piston moves up and down along with the piston rod, the lower sealing ring is continuously rubbed and damaged by the lower pump barrel, a gap is formed between the damaged lower sealing ring and the lower pump barrel, the V-shaped sealing ring is extruded up and down under the rebound extrusion of the compression spring, the extruded V-shaped sealing ring expands towards two sides, the V-shaped sealing ring expands inwards to enable the lower sealing ring to be tightly held with the plunger piston, the lower sealing ring is not separated from the plunger piston, no leakage exists between the lower sealing ring and the plunger piston, the V-shaped sealing ring expands outwards to fill the gap between the damaged lower sealing ring and the lower pump barrel, the lower sealing ring and the lower pump barrel are tightly sealed, and the leakage problem between the lower sealing ring and the.

The utility model provides the high life of lower seal circle improves the sealing performance who takes out material pump hydraulic pressure part, has reduced the pump body and has leaked, improves infusion stability.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the double-ball high-pressure material pump;

FIG. 2 is a schematic structural diagram of the hydraulic part;

description of reference numerals: the oil suction device comprises an air suction part-1, a hydraulic part-2, an upper pump barrel-11, a lower pump barrel-21, a connecting column-3, an air suction rod-12, a piston rod-22, a sealing cover-23, an upper sealing ring-24, a lower sealing ring-25, an upper one-way valve assembly-26, a discharge port-27, a lower one-way valve assembly-28, a compression spring-29, an oil cup-30, an oil absorption lubricating cotton felt sleeve-31 and an outer discharge hole-32.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.

Referring to the description and shown in figures 1 and 2,

a double-ball high-pressure material pumping pump comprises an upper pumping part 1 and a lower hydraulic part 2, wherein an upper pump barrel 11 of the hydraulic part is connected with a lower pump barrel 21 of the pumping part through a connecting column 3, a pumping rod 12 of the pumping part is connected with a piston rod 22 of the hydraulic part, the top of the lower pump barrel 21 is provided with a sealing cover 23 and an upper sealing ring 24, the upper sealing ring is formed by overlapping a plurality of layers of V-shaped sealing rings with an upper opening, the bottom of the piston rod 22 is connected with a plunger 33, the plunger 33 is sleeved with a lower sealing ring 25, the upper part of the plunger 33 is provided with an upper one-way valve assembly 26, a cavity of the connecting part of the plunger and the piston rod is provided with an outer discharge hole 32, the lower pump barrel at the upper part of the plunger is provided with a discharge hole 27, the bottom of the lower pump barrel is provided with a lower one-way valve assembly 28, the lower sealing ring 25 is formed, the bottom of the compression spring 29 is clamped by a plunger seat at the bottom of the plunger, the compression spring generates extrusion force on the lower sealing ring, the V-shaped sealing ring is extruded up and down under the rebound extrusion of the compression spring, the extruded V-shaped sealing ring expands towards two sides, the V-shaped sealing ring expands inwards to enable the lower sealing ring to be tightly held with the plunger, the lower sealing ring is not separated from the plunger, no leakage exists between the lower sealing ring and the plunger, the V-shaped sealing ring expands outwards to fill a gap between the damaged lower sealing ring and the lower pump barrel, the lower sealing ring and the lower pump barrel are sealed tightly, and the leakage problem between the lower sealing ring and the lower pump barrel is solved. In this embodiment, the upper check valve assembly and the lower check valve assembly include a star-shaped retaining ring, an extrusion spring, and a valve ball from top to bottom, the top of the extrusion spring is clamped by the star-shaped retaining ring, the bottom of the extrusion spring extrudes the valve ball, the valve ball in the upper check valve assembly blocks the central hole of the plunger, and the valve ball in the lower check valve assembly blocks the valve port of the valve seat at the feeding port. The moving device drives the air pumping rod to move up and down, the air pumping rod drives the piston rod and the plunger to move up and down, under the plugging of the upper one-way valve assembly and the lower one-way valve assembly, the air pressure in the lower pump barrel is reduced, under the external liquid pressure, the valve ball in the lower one-way valve assembly is pushed open by external liquid, the external liquid enters the lower pump barrel, when the liquid pressure in the lower pump barrel is equal to the external liquid pressure, the valve ball in the lower one-way valve assembly plugs the valve port under the extrusion of the extrusion spring, at the moment, the valve ball in the upper one-way valve assembly is pushed open by the liquid in the lower pump barrel, the liquid enters a cavity between the piston rod and the lower pump barrel from the outer discharge hole, the liquid is discharged from the discharge hole, and after the liquid in the lower pump barrel is discharged, the central hole of the plunger is plugged by the valve ball in the lower.

In one specific embodiment of the double-ball high-pressure material pumping pump, an oil cup 30 is sleeved on a piston rod 22 at the upper part of a sealing cover 23, an oil absorption lubricating cotton felt sleeve 31 is sleeved on a piston rod at the bottom of the oil cup, and the oil cup and the oil absorption lubricating cotton felt sleeve are fixed at the top of the sealing cover. When the oil cup 30 is used in a pump, lubricating oil is added, the lubricating oil permeates into the oil absorption lubricating cotton felt sleeve 31, when liquid raw materials which are easy to crystallize and solidify when meeting air are pumped by the pump, if a piston rod is not lubricated by the lubricating oil, the raw materials attached to the piston rod are easy to crystallize, so that an upper sealing ring is rapidly scraped, the sealing is ineffective, and liquid leakage is caused. The lubricating oil in the oil cup isolates the piston rod from the air, and the oil-absorbing lubricating cotton felt sleeve can wipe off the easily crystallized and solidified liquid attached to the surface of the piston rod in the process of up-and-down operation of the piston rod after being filled with the lubricating oil, thereby playing the role of protecting the upper sealing ring.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred embodiments of the present invention, and the present invention is not limited by the above preferred embodiments, and various changes and modifications can be made without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the present invention as claimed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A double-ball high-pressure material pumping pump comprises an upper pumping part (1) and a lower hydraulic part (2), wherein an upper pump barrel (11) of the hydraulic part is connected with a lower pump barrel (21) of the pumping part through a connecting column (3), a pumping rod (12) of the pumping part is connected with a piston rod (22) of the hydraulic part, the top of the lower pump barrel (21) is provided with a sealing cover (23) and an upper sealing ring (24), the bottom of the piston rod (22) is connected with a plunger (33), the plunger (33) is sleeved with a lower sealing ring (25), the upper part of the plunger (33) is provided with an upper one-way valve assembly (26), the lower pump barrel at the upper part of the plunger is provided with a discharge hole (27), the bottom of the lower pump barrel is provided with a lower one-way valve assembly (28), and the double-ball high-pressure material pumping pump is characterized in that the lower sealing ring (25) is formed by overlapping a plurality, the top of the compression spring (29) is clamped by the lower sealing ring (25), and the bottom of the compression spring (29) is clamped by the plunger seat at the bottom of the plunger.

2. The double-ball high-pressure material pumping pump as claimed in claim 1, wherein the piston rod (22) at the upper part of the sealing cover (23) is sleeved with an oil cup (30), the piston rod at the bottom of the oil cup is sleeved with an oil-absorbing lubricating cotton felt sleeve (31), and the oil cup and the oil-absorbing lubricating cotton felt sleeve are fixed at the top of the sealing cover.