CN219034969U

CN219034969U - Improved return disc for plunger pump

Info

Publication number: CN219034969U
Application number: CN202222860919.0U
Authority: CN
Inventors: 杨莽; 雷德全; 王中伟; 冯晓磊; 刘猛; 刘鸿
Original assignee: SICHUAN YIBIN PUSH DRIVE CO Ltd
Current assignee: SICHUAN YIBIN PUSH DRIVE CO Ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-05-16
Anticipated expiration: 2032-10-28

Abstract

The utility model belongs to the technical field of return disks, and discloses an improved return disk for a plunger pump. The return disc main body is of a disc-shaped structure, when the inner surface of the piston ring is worn, a user screws out the piston ring through the fastening groove by using a tool, and then the auxiliary external thread on the surface of the brand-new piston ring is screwed into the auxiliary internal thread hole, so that the bad piston ring is replaced, the whole return disc main body is not required to be replaced, the maintenance cost of the pump body is reduced, and meanwhile, the return disc main body is different from the piston ring and the main shaft ring in materials, so that the strength of the device is ensured, and the manufacturing cost is reduced.

Description

Improved return disc for plunger pump

Technical Field

The utility model belongs to the technical field of return trays, and particularly relates to an improved return tray for a plunger pump.

Background

The plunger is a core component in the plunger pump, and is matched with the plunger component for use. The plunger is provided with a containing opening, and the plunger round head is arranged in the containing opening, so that the plunger round head can rotate in the containing opening. The plunger opening is open, so that the plunger and the plunger round head are matched with each other to be closed, and the plunger round head is contracted in the plunger to realize the function of gap rotation

According to the patent application number CN201822239434.3, an improved return disc for a plunger pump comprises a return disc main body, wherein the return disc main body is of a disc-shaped structure, a through hole for allowing a transmission shaft to pass through is formed in the middle of the return disc main body, and a plurality of installation holes for installing sliding shoes distributed in an annular shape are formed in the periphery of the through hole in the return disc main body; both sides of the circumference terminal surface of return tray main part are the inclined plane, and the incline direction on inclined plane is from the center of return tray main part to the tip direction of return tray main part slope gradually to the central line direction of the circumference terminal surface of return tray main part, however the improved generation return tray for plunger pump that appears on the market still has various not enough, can not satisfy the demand of production.

The perforated surface of the existing return disc main body acts on the piston for a long time, abrasion is easy to generate, then the whole return disc needs to be replaced, so that the maintenance cost of the pump body is increased, meanwhile, the whole material of the return disc is consistent, and if high-strength materials are adopted, the manufacturing cost is increased.

Disclosure of Invention

The utility model aims to provide an improved return disc for a plunger pump, which solves the problems that in the prior art, the perforated surface of a main body of the return disc acts with a piston for a long time, abrasion is easy to generate, then the whole return disc needs to be replaced, so that the maintenance cost of a pump body is increased, meanwhile, the whole return disc is consistent in material, and the manufacturing cost is increased if high-strength materials are adopted.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an improved generation return stroke dish for plunger pump, includes the return stroke dish main part, a plurality of vice internal thread hole have been seted up to the surface of return stroke dish main part, and a plurality of the internal thread hole's of vice internal thread hole internal surface threaded connection has the piston ring, main internal thread hole has been seted up at the middle part on return stroke dish main part surface, the internal thread hole's of main internal thread hole internal surface threaded connection has the main shaft ring, main shaft ring and piston ring are established to high strength material.

Preferably, an auxiliary external thread is arranged on the outer surface of the piston ring, and the auxiliary external thread is in threaded connection with the auxiliary internal thread hole.

Preferably, the surface of the spindle ring is provided with a main external thread, and the main external thread is in threaded connection with the main internal thread hole.

Preferably, the edge of the return disc body is set to be an inclined plane, and the inclined plane is set to be 45 degrees.

Preferably, fastening grooves are formed in two sides of the upper ends of the main shaft ring and the piston ring.

Compared with the prior art, the utility model has the beneficial effects that:

1. the return disc main body is of a disc-shaped structure, when the inner surface of the piston ring is worn, a user screws out the piston ring through the fastening groove by using a tool, and then the auxiliary external thread on the surface of the brand-new piston ring is screwed into the auxiliary internal thread hole, so that the bad piston ring is replaced, the whole return disc main body is not required to be replaced, the maintenance cost of the pump body is reduced, and meanwhile, the return disc main body is different from the piston ring and the main shaft ring in material, so that the strength of the device is guaranteed, and the manufacturing cost is reduced.

2. When the inner surface of the main shaft ring is worn, a user screws out the main shaft ring through the fastening groove by using a tool, and then screws the main external thread on the surface of the brand-new main shaft ring into the main internal thread hole, so that the bad main shaft ring is replaced, and the cost is reduced.

Drawings

FIG. 1 is a schematic view of a three-dimensional structure of the present utility model;

FIG. 2 is a schematic view of the structure of the locations of the main external and internal threaded holes of the present utility model;

fig. 3 is a schematic view of the structure of the positions of the secondary external screw holes and the secondary internal screw holes according to the present utility model.

In the figure: 1. a return tray main body; 2. an inclined plane; 3. a fastening groove; 4. piston rings; 5. a spindle ring; 6. a main external thread; 7. a main internal threaded hole; 8. an auxiliary external thread; 9. and a secondary internal threaded hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: the utility model provides an improved generation return disc for plunger pump, includes return disc main part 1, and a plurality of vice internal thread hole 9 have been seted up on the surface of return disc main part 1, and the internal surface threaded connection of a plurality of vice internal thread holes 9 has piston ring 4, and main internal thread hole 7 has been seted up at the middle part on return disc main part 1 surface, and the internal surface threaded connection of main internal thread hole 7 has spindle ring 5, and vice internal thread hole 9 is equipped with the spacing ring with the lower extreme of main internal thread hole 7, and the internal surface of spacing ring is located the coplanar with the internal surface of piston ring 4 and spindle ring 5 respectively.

In this embodiment, the return disc body 1 is of a disc-shaped structure, when the inner surface of the piston ring 4 is worn, a user screws out the piston ring 4 through the fastening groove 3, then screws in the auxiliary external thread 8 on the surface of the brand-new piston ring 4 into the auxiliary internal thread hole 9, so that the bad piston ring 4 is replaced, the whole return disc body 1 is not required to be replaced, so that the maintenance cost of the pump body is reduced, meanwhile, the return disc body 1 is different from the piston ring 4 and the main shaft ring 5 in material, namely, the strength of the device is ensured, the manufacturing cost is reduced, when the inner surface of the main shaft ring 5 is worn, the user screws out the main shaft ring 5 through the fastening groove 3 by using a tool, and then screws in the main external thread 6 on the surface of the brand-new main shaft ring 5 into the main internal thread hole 7, so that the bad main shaft ring 5 is replaced, and the cost is reduced.

Specifically, the outer surface of the piston ring 4 is provided with an auxiliary external thread 8, and the auxiliary external thread 8 is in threaded connection with an auxiliary internal threaded hole 9.

In the embodiment, the auxiliary external thread 8 on the surface of the new piston ring 4 is screwed into the auxiliary internal thread hole 9, so that the bad piston ring 4 is replaced, and the threaded connection mode is simple to operate and firm in fixation.

Specifically, the surface of the spindle ring 5 is provided with a main external thread 6, and the main external thread 6 is in threaded connection with a main internal thread hole 7.

In this embodiment, the main external thread 6 on the surface of the new spindle ring 5 is screwed into the main internal thread hole 7, so that the bad spindle ring 5 is replaced, and the threaded connection mode is simple to operate and firm in fixation.

Specifically, the edge of the return disc body 1 is set to be an inclined surface 2, and the inclined surface 2 is set to be 45 degrees.

In this embodiment, the inclined direction of the inclined surface 2 is that the end direction of the return disc body 1 is gradually inclined toward the center line direction of the circumferential end surface of the return disc body 1, and when the return disc body 1 swings left and right, the end of the return disc body 1 does not interfere with the plate or the cylinder end in advance, resulting in abnormal wear of the return disc body 1.

Specifically, the fastening grooves 3 are formed in the two sides of the upper ends of the spindle ring 5 and the piston ring 4.

In this embodiment, the fastening groove 3 is provided to facilitate the disassembly of the spindle ring 5 and the piston ring 4.

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

Claims

1. The utility model provides an improved generation return disc for plunger pump, includes return disc main part (1), its characterized in that: a plurality of auxiliary internal thread holes (9) are formed in the surface of the return disc main body (1), a plurality of piston rings (4) are connected with the internal surface threads of the auxiliary internal thread holes (9), a main internal thread hole (7) is formed in the middle of the surface of the return disc main body (1), and a main shaft ring (5) is connected with the internal surface threads of the main internal thread hole (7).

2. The improved return disc for a plunger pump of claim 1, wherein: the outer surface of the piston ring (4) is provided with an auxiliary external thread (8), and the auxiliary external thread (8) is in threaded connection with an auxiliary internal threaded hole (9).

3. The improved return disc for a plunger pump of claim 1, wherein: the surface of the main shaft ring (5) is provided with a main external thread (6), and the main external thread (6) is in threaded connection with a main internal thread hole (7).

4. The improved return disc for a plunger pump of claim 1, wherein: the edge of the return disc main body (1) is set to be an inclined surface (2), and the inclined surface (2) is set to be 45 degrees.

5. The improved return disc for a plunger pump of claim 1, wherein: the two sides of the upper ends of the main shaft ring (5) and the piston ring (4) are provided with fastening grooves (3).