CN220179197U - Vertical long-axis pump bearing bush extracting tool - Google Patents

Abstract

The utility model relates to a vertical long shaft pump bearing bushing disassembling tool which comprises a connecting disc, a push rod, a fixing nut, a connecting screw and a limiting groove, wherein a circular through hole with internal threads is formed in the center of the connecting disc, a rectangular limiting groove is formed in the same distance between two ends of a straight line of the connecting disc and the through hole, a push rod body is provided with external threads matched with the internal threads of the connecting disc, the push rod body is fixedly connected with the through hole of the connecting disc through the external threads of the rod body, the connecting screw is a deflection screw, the diameter difference between the large diameter end and the small diameter end is 6-8 mm, the large diameter end of the connecting screw is fixedly arranged in the limiting groove of the connecting disc through the fixing nut, and the small diameter end of the connecting screw faces to a bearing bushing; the bearing and bearing box integrated structure has been protected, the consumption of spare parts has been reduced, is suitable for different size bearing bush, conveniently carries, and it is consuming time little to dismantle, simple structure has reduced maintainer's intensity of labour.

Description

A vertical long shaft pump bearing bushing removal tool

Technical field

The utility model relates to the technical field of water pumps, and in particular to a vertical long-axis pump bearing bushing removal tool.

Background technique

The vertical long-axis pump is a common water pump that is widely used in various water treatment processes. The inner wall of the vertical long-axis pump bearing bushing is connected to the pump shaft through a flat key, and the outer wall is locked with the bearing. Disassembly of the water pump for maintenance The bearing bushing has no fixed position. When it is disassembled together with the bearing, it will cause the bearing roller to wear, the bearing to be damaged, and in severe cases, the bearing box to break, which is time-consuming and labor-intensive.

The Chinese patent with publication number CN206952892U discloses a disassembly tool for non-through-hole bearing bushings, which includes an adapter and a slide hammer. The adapter includes a bushing connection section and a slide hammer connection section. The slide hammer includes a slide hammer rod. And the hammer body, the hammer body is sleeved on the slide hammer rod, the bottom of the slide hammer rod is provided with a connecting rod, the connecting rod is connected to the center of the slide hammer connecting section, and the slide hammer rod is provided with a shoulder near the top; the utility model has a simple structure, The fit is high and the bushing can be removed and replaced without damaging the shell; however, this patent requires threads to be processed on the bushing to be disassembled to cooperate with the disassembly, and the shell and bushing assembly need to be placed in an oven for heating during use. Backup, complicated usage process.

Contents of the invention

The utility model provides a vertical long-axis pump bearing bushing removal tool, which separates the bearing bushing from the water pump shaft through the cooperation of the ejector rod and the connecting plate, which can completely protect the bearing and the overall structure of the bearing box and reduce the cost of spare parts. The consumption is improved, and the economic benefits are improved. The rectangular limit groove allows the bearing bushings with different center distances of the connecting screw to be applied. The connecting screw is equipped with a limit nut, which is easy to carry, takes less time to disassemble, improves the maintenance efficiency, and has a simple structure. It is easy to operate and reduces the labor intensity of maintenance personnel.

In order to achieve the above objectives, the present utility model adopts the following technical solutions:

A tool for removing bearing bushings of vertical long-axis pumps, including a connecting plate, a push rod, a fixing nut, a connecting screw and a limiting groove. A circular through hole with internal threads is opened in the center of the connecting plate, and the connecting plate is A rectangular limit groove is provided at the same distance between the two ends of a straight line of the through hole. The ejector rod body has external threads that match the internal threads of the connecting plate. The ejector rod is connected to the internal threads of the connecting plate through the external threads of the rod. It is fixed on the through hole of the connecting plate. The connecting screw is a displacement screw. The diameter difference between the large diameter end and the small diameter end is 6 to 8 mm. The large diameter end of the connecting screw is fixed in the limit groove of the connecting plate through a fixing nut. , the small diameter end of the connecting screw faces the bearing bushing.

Further, one end of the ejector pin is provided with a regular hexagonal head, and the other end is conical, with one end of the conical shape facing the bearing bushing.

Further, the width of the limiting groove is smaller than the diameter of the fixing nut and larger than the diameter of the connecting screw.

Further, the center distance of the connecting screws installed in the two limiting grooves ranges from 60 to 80 mm, and the connecting screws are symmetrically arranged.

Further, it also includes a limit nut, which is installed on the large-diameter end rod body of the connecting screw rod.

Furthermore, the outer threads of the ejector rod and the rod connecting the screw rod are ordinary threads with profile angles.

Further, the connecting disk is disc-shaped.

Compared with the existing technology, the beneficial effects of this utility model are:

1) The bearing bushing is separated from the water pump shaft through the cooperation of the ejector rod and the connecting plate, which can completely protect the overall structure of the bearing and bearing box, reduce the consumption of spare parts, and improve economic benefits;

2) The rectangular limit groove makes it possible to apply bearing bushings with different center distances of the connecting screws;

3) The connecting screw is equipped with a limit nut, making it easy to carry;

4) Disassembly takes less time, improves maintenance efficiency, has a simple structure, is easy to operate, and reduces the labor intensity of maintenance personnel.

Description of drawings

Figure 1 is a schematic structural diagram of the utility model.

Figure 2 is a side view of the utility model.

Figure 3 is a top view of the connection plate according to the present invention.

In the picture: 1. Connecting plate 2. Ejector 3. Connecting screw 4. Fixing nut 5. Limit nut 6. Limit slot

Detailed ways

The specific embodiments of the present utility model will be further described below in conjunction with the accompanying drawings:

See Figures 1 and 3, which are schematic structural diagrams of the present utility model. The utility model is a vertical long-axis pump bearing bushing removal tool, which includes a connecting plate 1, a push rod 2, a fixing nut 4, a connecting screw 3 and a limiting groove 6. The connecting plate 1 is disc-shaped and has an open center. There is a circular through hole with an internal thread. The connecting plate 1 is provided with a rectangular limit groove 6 at the same distance from both ends of a straight line with the through hole. The width of the limit groove is smaller than the diameter of the fixing nut 4 and larger than the diameter of the connecting screw 3 Diameter 8mm;

See Figures 1 and 2. One end of the ejector rod 2 is equipped with a regular hexagonal head, and the other end is conical. The conical end faces the bearing bushing. The rod body of the ejector rod 2 has an internal thread adapted to the connecting plate 1. The external thread of the ejector rod 2 is connected to the internal thread of the connecting plate 1 through the outer thread of the rod and is fixed on the through hole of the connecting plate 1. The connecting screw 3 is a displacement screw, and the diameter difference between the large diameter end and the small diameter end is 6~8mm, the large diameter end of the connecting screw 3 is fixed in the limit groove 6 of the connecting plate 1 through the fixing nut 4, the small diameter end of the connecting screw 3 faces the bearing bushing, and the connecting screw installed in the two limit grooves 6 3. The center distance range is 70mm, and the connecting screws 3 are arranged symmetrically. The external threads of the ejector rod 2 and the connecting screw 3 are both ordinary threads with a profile angle of 60°.

Working principle: Two symmetrical connecting screws 3 on the connecting plate 1 are fixed on the screw holes of the bearing bushing through the external threads of the connecting screws 3. The symmetrically arranged connecting screws 3 make the bearing bushing evenly stressed, and the fixing nut 4 and the limit Tighten the nut 5 toward the bearing bushing, fix the connecting screw 3, and tighten the ejector pin 2 clockwise with a wrench so that the ejector pin 2 presses against the pump shaft. At this time, the bearing bushing moves outward and the bearing bushing is removed from the pump shaft. Remove the top.

The above embodiments are implemented on the premise of the technical solution of the present invention, and detailed implementation modes and specific operating processes are given. However, the protection scope of the present utility model is not limited to the above-mentioned embodiments. Unless otherwise specified, the methods used in the above examples are conventional methods.

Claims (7)

1. The utility model provides a vertical major axis pump bearing bush extracting tool, its characterized in that includes connection pad, ejector pin, fixation nut, connecting screw and spacing groove, the connection pad center is opened there is the circular through-hole of taking the internal thread, and the same department of both ends distance with a straight line of through-hole on the connection pad is equipped with a rectangle spacing groove respectively, the ejector pin body of rod has the external screw thread with connection pad internal thread adaptation, and the ejector pin passes through the internal thread connection of body of rod external screw thread and connection pad and fixes on the through-hole of connection pad, the connecting screw is the screw that shifts, and major diameter end and minor diameter end diameter difference are 6 ~ 8mm, and the connecting screw major diameter end is fixed in the spacing inslot of connection pad through fixation nut, and the connecting screw minor diameter end faces the bearing bush.

2. The tool for removing bearing bush of vertical long-axis pump according to claim 1, wherein one end of the ejector rod is provided with a regular hexagon head, the other end is conical, and one conical end faces the bearing bush.

3. The vertical long shaft pump bearing bushing removal tool of claim 1, wherein the limiting groove has a width smaller than the diameter of the fixing nut and larger than the diameter of the connecting screw.

4. The dismounting tool for the bearing bush of the vertical long-axis pump according to claim 1, wherein the center distance of connecting screws installed in the two limiting grooves is 60-80 mm, and the connecting screws are symmetrically arranged.

5. The tool for removing the bearing bush of the vertical long-axis pump according to claim 1, further comprising a limit nut, wherein the limit nut is mounted on the large-diameter end rod body of the connecting screw.

6. The tool for disassembling bearing bushes of a vertical long-axis pump according to claim 1, wherein the external threads of the rod body of the ejector rod and the connecting screw are common threads of a tooth angle.

7. The tool of claim 1, wherein the connecting disc is a disc.