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CN-224214352-U - Metal plunger barrel for plunger pump

CN224214352UCN 224214352 UCN224214352 UCN 224214352UCN-224214352-U

Abstract

The utility model relates to a metal plunger cylinder for a plunger pump, which comprises a cylinder, end covers and a cladding layer, wherein the cylinder and the end covers are made of metal, the middle cylinder is made of a seamless steel pipe, the two ends of the cylinder are respectively provided with the end covers, the two end covers are connected with the cylinder to form a closed plunger cylinder, the outer circles of the two end covers are provided with chamfers, and the outer circles of the plunger cylinder are clad by laser. The utility model has simple structure, impact resistance, no looseness and low processing cost.

Inventors

  • LIU GUOZHI
  • LI JIAN
  • YUAN JIANYING
  • WANG RUNFA
  • WANG XIN

Assignees

  • 景津装备股份有限公司

Dates

Publication Date
20260508
Application Date
20250303

Claims (2)

  1. 1. The metal plunger cylinder for the plunger pump is characterized by comprising a cylinder, end covers and a cladding layer, wherein the cylinder and the end covers are made of metal, a seamless steel tube is arranged in the middle of the cylinder, the end covers are respectively arranged at two ends of the cylinder, the two end covers are connected with the cylinder to form a closed plunger cylinder, the outer circles of the two end covers are provided with chamfer angles, and the laser cladding layer is used for cladding the outer circles of the plunger cylinders.
  2. 2. The metal plunger cylinder for a plunger pump according to claim 1, wherein two of said end caps are welded to both ends of the cylinder, respectively.

Description

Metal plunger barrel for plunger pump Technical Field The utility model relates to the field of material plunger pumps, in particular to a metal plunger barrel for a plunger pump. Background The material plunger pump is a volumetric pump which utilizes a hydraulic cylinder to drive a plunger cylinder to reciprocate to pump materials such as mud, sewage and the like, the plunger cylinder is a core component of the plunger pump, and the plunger cylinder reciprocates in a pump body. When the plunger cylinder moves backwards, negative pressure is formed in the pump cavity to suck liquid, and when the plunger cylinder moves forwards, positive pressure is formed in the pump cavity to discharge liquid. In the application of the plunger pump, the ceramic plunger is made into a cylinder shape, metal end covers are arranged at two ends of the ceramic cylinder, and a connecting rod is arranged in the middle of the ceramic cylinder and is connected with the metal end covers at two ends to form a closed plunger cylinder. Disclosure of Invention The utility model aims to solve the defects in the background and provides a metal plunger barrel for a plunger pump. The metal plunger cylinder for the plunger pump comprises a cylinder, end covers and a cladding layer, wherein the cylinder and the end covers are made of metal, the middle cylinder is made of a seamless steel pipe, the end covers are respectively arranged at two ends of the cylinder, the two end covers are connected with the cylinder to form a closed plunger cylinder, the outer circles of the two end covers are provided with chamfer angles, and the outer circles of the plunger cylinders are subjected to laser cladding to form hard and wear-resistant cladding layers. Preferably, the two end caps are welded to the two ends of the cylinder, respectively. The metal plunger cylinder for the plunger pump uses metal materials, the end cover is directly welded with the cylinder to form the closed plunger cylinder, connecting rods required by the original ceramic plunger cylinder are reduced, and the metal plunger cylinder for the plunger pump has the advantages of simple structure, impact resistance, no looseness, easiness in processing and low cost. Drawings Fig. 1 is a schematic cross-sectional view of a metal plunger barrel for a plunger pump. In the figure, 1 part of the cylinder, 2 parts of the end cover, 3 parts of the cladding layer. Detailed Description The following detailed description is directed to the accompanying drawings and detailed description of the utility model. The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The preferred embodiments in the following description are for illustration only and not for limitation of the utility model, as other obvious variations will occur to those skilled in the art. The metal plunger cylinder for the plunger pump comprises a cylinder 1, end covers 2 and a cladding layer 3, wherein the cylinder 1 and the end covers 2 are made of metal, the middle cylinder 1 is made of a seamless steel pipe, the end covers 2 are respectively arranged at two ends of the cylinder 1, the two end covers 2 are connected with the cylinder 1 to form a closed plunger cylinder, the outer circles of the two end covers 2 are provided with chamfers, and the outer circles of the plunger cylinders are clad with laser to form hard and wear-resistant cladding layers 3. Preferably, two end caps 2 are welded to both ends of the cylinder 1, respectively. The metal plunger cylinder for the plunger pump uses the metal material, the end cover is directly connected with the cylinder to form the closed plunger cylinder, so that a connecting rod required by the original ceramic plunger cylinder is reduced.