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CN-224214344-U - Wear-resisting component of shock-absorbing plunger pump

CN224214344UCN 224214344 UCN224214344 UCN 224214344UCN-224214344-U

Abstract

The utility model discloses a wear-resistant component of a shock-absorbing plunger pump, which comprises a shock-absorbing wear-resistant block, wherein the shock-absorbing wear-resistant block is high-wear-resistant hydrogenated nitrile rubber, and a first matching surface is arranged on the upper wall of the shock-absorbing wear-resistant block. According to the utility model, by adopting the composite structure of the hydrogenated nitrile rubber and the three-dimensional reticular alloy framework, the fatigue resistance and the impact resistance of the rubber matrix are obviously improved, the problem that the traditional rubber material is easy to crack under high-frequency impact is fundamentally solved, the whole service life of the valve assembly is prolonged, the concentrated impact force when the valve seat is closed is effectively dispersed by optimizing the structure of the matching surface and introducing a multi-stage buffer mechanism, the problems of connecting rod fracture and rubber block permanent deformation caused by stress concentration are avoided, and the operation stability of the valve assembly under high-frequency working conditions is improved.

Inventors

  • HUANG ZHONG
  • YANG XUHUI

Assignees

  • 江苏津润液压股份有限公司

Dates

Publication Date
20260508
Application Date
20250604

Claims (7)

  1. 1. The wear-resisting component of the shock-absorbing plunger pump is characterized by comprising a shock-absorbing wear-resisting block (1), wherein the shock-absorbing wear-resisting block (1) is made of high wear-resisting hydrogenated nitrile rubber, a first matching surface (101) is arranged on the upper wall of the shock-absorbing wear-resisting block (1), a second matching surface (102) is arranged on the lower wall of the shock-absorbing wear-resisting block (1), an outer peripheral surface (103) is circumferentially arranged on the shock-absorbing wear-resisting block (1), a transition surface (104) is arranged between the outer peripheral surface (103) and the second matching surface (102), a mounting hole (2) penetrating up and down is formed in the inner wall of the shock-absorbing wear-resisting block (1), a three-dimensional framework (5) for improving the supporting effect is arranged in the shock-absorbing wear-resisting block (1), a plurality of groups of reinforcing ribs (3) for improving the strength are arranged on the peripheral outer wall of the shock-absorbing wear-resisting block (1), and a buffer pad (4) for further improving the buffer performance is arranged on the lower wall of the second matching surface (102) of the shock-absorbing wear-resisting block (1).
  2. 2. The wear-resistant assembly of a shock-absorbing plunger pump as set forth in claim 1, wherein the three-dimensional skeleton (5) is a three-dimensional net structure extending radially from the mounting hole (2) to the outer peripheral surface (103), and the three-dimensional skeleton (5) and the shock-absorbing wear-resistant block (1) are integrally vulcanization molded.
  3. 3. The wear-resistant component of the shock-absorbing plunger pump as claimed in claim 2, wherein the three-dimensional framework (5) is a high-elasticity alloy steel wire.
  4. 4. A wear-resistant assembly of a shock-absorbing plunger pump as set forth in claim 3, wherein the plurality of groups of reinforcing ribs (3) are equally distributed circumferentially about the axis of the mounting hole (2), and the reinforcing ribs (3) are disposed on the outer peripheral surface (103) and the outer wall of the transition surface (104).
  5. 5. The wear-resistant assembly of the shock-absorbing plunger pump as set forth in claim 4, wherein the lower wall of the second matching surface (102) is provided with a sink (1021), the cushion pad (4) is arranged on the inner side wall of the sink (1021), the depth of the sink (1021) is 1/3 of the thickness of the cushion pad (4), and the lower wall of the cushion pad (4) protrudes out of the lower wall of the second matching surface (102) and protrudes out to a height of 1-2 mm.
  6. 6. The wear-resistant component of the shock-absorbing plunger pump as set forth in claim 5, wherein the cushion pad (4) is a silica gel pad, and the Shore A hardness of the silica gel pad is 40-50.
  7. 7. The wear-resistant component of the shock-absorbing plunger pump as set forth in claim 6, wherein the transition surface (104) is arc-shaped, and the radius R of curvature of the transition surface (104) and the radius D of the shock-absorbing wear-resistant block (1) satisfy that R is equal to or less than 0.3D and equal to or less than 0.35D, wherein D is the maximum outer diameter of the shock-absorbing wear-resistant block (1).

Description

Wear-resisting component of shock-absorbing plunger pump Technical Field The utility model relates to the technical field of plunger pumps, in particular to a wear-resistant component of a shock-absorbing plunger pump. Background There are a number of drawbacks and disadvantages to the prior art plunger pump valve assemblies. When the equipment runs, the valve component frequently opens and closes, and has the problems of large vibration and rapid abrasion, so that the valve component has a plurality of faults in the production process, and the valve component has the following specific points that 1, the contact part of the valve core and the valve seat needs impact resistance and abrasion resistance; Therefore, the disclosed technology provides a damping wear-resistant block, a plunger pump valve assembly and a plunger pump, which comprise a damping block main body, wherein an installation hole is formed in the axial direction of the damping block main body, the position, close to the peripheral edge of the damping block main body, of the damping block main body is configured as a matching surface, the matching surfaces of the damping block main body are respectively a first matching surface formed on the upper part of the damping block main body and a second matching surface formed on the lower part of the damping block main body, and rubber materials are selected as materials of the damping block main body. The damping wear-resistant block provided by the disclosed technology improves the matching structure with the valve core rubber block supporting steel frame, changes the original inclined plane into a vertical plane, further improves the corresponding position of the valve core rubber block supporting steel frame according to the plane, and simultaneously utilizes the wear-resistant rubber material to replace the polyurethane material in the current stage, thereby better improving the wear resistance and the shock resistance of the damping wear-resistant block; However, the damping wear-resistant block proposed by the above-mentioned publication technology has changed from polyurethane into rubber material and optimized the mating surface structure, but under high-frequency impact load, there is still risk of deformation and fracture, resulting in short service life of the valve core assembly, the root cause of which is that the rubber material is easy to fatigue crack under long-term impact, the design of gradual thickness change can disperse part of stress, but when the valve seat is closed and collides with the mating inclined surface of the valve seat, the impact force is concentrated, the effective buffer mechanism is lacking, the internal structure is not reinforced, and is easy to permanently deform under compression; therefore, there is a need to develop a wear assembly for a shock-absorbing plunger pump to solve the above-mentioned problems. Disclosure of utility model The utility model aims to solve the defects in the prior art, and provides a wear-resistant component of a shock-absorbing plunger pump. In order to achieve the purpose, the wear-resistant component of the shock-absorbing plunger pump comprises a shock-absorbing wear-resistant block, wherein the shock-absorbing wear-resistant block is made of high wear-resistant hydrogenated nitrile rubber, a first matching surface is arranged on the upper wall of the shock-absorbing wear-resistant block, a second matching surface is arranged on the lower wall of the shock-absorbing wear-resistant block, an outer peripheral surface is circumferentially arranged on the shock-absorbing wear-resistant block, a transition surface is arranged between the outer peripheral surface and the second matching surface, mounting holes penetrating up and down are formed in the inner wall of the shock-absorbing wear-resistant block, a three-dimensional framework for improving the supporting effect is arranged in the shock-absorbing wear-resistant block, a plurality of groups of reinforcing ribs for improving the strength are arranged on the circumferential outer wall of the shock-absorbing wear-resistant block, and a buffer cushion for further improving the buffering performance is arranged on the lower wall of the second matching surface of the shock-absorbing wear-resistant block. As a further description of the above technical solution: The three-dimensional framework is of a three-dimensional net structure extending radially from the outer peripheral surface of the mounting hole, and the three-dimensional framework and the damping wear-resisting block are integrally vulcanized and formed. As a further description of the above technical solution: the three-dimensional framework is a high-elasticity alloy steel wire. As a further description of the above technical solution: The reinforcing ribs are uniformly distributed in a circumference mode by taking the axis of the mounting hole as the center, and are arranged on the outer peripheral surface and the ou