Double-suction centrifugal pump shell polishing mechanism

Abstract

The utility model discloses a double-suction centrifugal pump shell polishing mechanism which comprises a base, the top of the base is fixedly connected with a butt joint seat, the top of the butt joint seat is fixedly connected with a plurality of positioning bolts, the top of the butt joint seat is provided with a shell body, and mounting holes in the bottom of the shell body are in butt joint with the positioning bolts. The top of the base is fixedly connected with a chip removal pipe, the chip removal pipe communicates with the butt joint base and the shell body, the other end of the chip removal pipe is fixedly connected with a connecting pipe, a filter cover is inserted into one end of the inner wall of the connecting pipe, and a chip inlet is formed in one side of the filter cover and located under the chip removal pipe; one end of the filter cover is fixedly connected with an end cover, and a plurality of O-shaped rings are arranged at the end, close to the end cover, of the filter cover in a sleeved mode. Scrap iron is prevented from adhering to the interior of the shell body, and the grinding efficiency and the machining effect of the double-suction centrifugal pump are improved.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal pump processing technology, and in particular to a grinding mechanism for the casing of a double-suction centrifugal pump. Background Technology

[0002] Double-suction centrifugal pumps are a widely used type of centrifugal pump. Their characteristic feature is that the impeller simultaneously draws liquid from both sides, hence the name "double-suction." Compared to single-suction centrifugal pumps, double-suction centrifugal pumps offer larger flow rates and higher efficiency, making them suitable for various fields such as large-scale water conservancy projects, urban water supply systems, and farmland irrigation.

[0003] Currently, existing double-suction centrifugal pumps require internal grinding during the manufacturing process. However, this process easily leads to iron filings adhering to the inside of the pump, making cleaning difficult and thus affecting the grinding efficiency of the pump casing. Utility Model Content

[0004] The purpose of this invention is to solve the problem that in the production and processing of existing double-suction centrifugal pumps, the inside of the centrifugal pump needs to be polished, but this easily leads to the accumulation of iron filings inside the centrifugal pump, which is inconvenient to clean and thus affects the polishing efficiency of the double-suction centrifugal pump shell. Therefore, this invention proposes a polishing mechanism for the shell of a double-suction centrifugal pump.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A grinding mechanism for the casing of a double-suction centrifugal pump includes a base, a docking seat fixedly connected to the top of the base, and multiple positioning bolts fixedly connected to the top of the docking seat. A casing body is located on the top of the docking seat, and mounting holes on the bottom of the casing body align with the positioning bolts. A chip removal pipe is fixedly connected to the top of the base, and the chip removal pipe communicates with the docking seat and the casing body. A connecting pipe is fixedly connected to the other end of the chip removal pipe, and a filter cover is inserted into one end of the inner wall of the connecting pipe. A chip inlet is located on one side of the filter cover, directly below the chip removal pipe. An end cap is fixedly connected to one end of the filter cover, and multiple O-rings are fitted onto the end of the filter cover near the end cap. A vacuum pump is located at one end of the connecting pipe. A grinding assembly is located on the top of the base, and the grinding assembly is located on one side of the casing body.

[0007] Furthermore, a sealing gasket is provided between the docking seat and the outer shell body.

[0008] Furthermore, a sealing gasket is fitted onto one end of the filter cover.

[0009] Furthermore, the grinding assembly includes a support sleeve, a sliding rod is slidably connected to the inner wall of the support sleeve, and an electric slide is fixedly connected to the top of the sliding rod. An electric push rod is fixedly connected to the top of the base, and the output shaft of the electric push rod is fixed to the top of the sliding rod.

[0010] Furthermore, the bottom of the electric slide table is provided with a sliding bracket, and a grinding motor is fixedly connected inside the sliding bracket. The output shaft of the grinding motor is fixedly connected to a rotating shaft, and the bottom end of the rotating shaft is fixedly connected to a grinding bracket. A grinding disc is fixedly connected to the outer surface of the grinding bracket.

[0011] Furthermore, a sliding sleeve is fitted on the outer side of the rotating shaft, and the sliding sleeve is connected to the rotating shaft with a gap. A dust cover is fixedly connected to the outer surface of the sliding sleeve, and an observation window is opened on the outer surface of the dust cover.

[0012] Furthermore, a protective cover is fixedly connected to the top of the base.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The dual-suction centrifugal pump housing grinding mechanism fixes the housing body with a docking seat and positioning bolts. At the same time, a chip discharge pipe is set between the docking seat and the housing body to connect the gas flow path. The air pump has a filter cover installed in the connecting pipe. The air pump drives the grinding chips to be discharged along the chip discharge pipe. The chip inlet equipped with the filter cover can capture the chips during chip discharge, improving the filtration effect. Finally, the chips are extracted by the air pump, preventing the chips from adhering to the inside of the housing body, improving the grinding efficiency and the processing effect of the dual-suction centrifugal pump.

[0015] 2. The grinding mechanism for the casing of the double-suction centrifugal pump can prevent dust from splashing during grinding by setting a dust cover on the outer surface of the grinding head, thereby preventing debris from adhering to the outside of the centrifugal pump and the worktable, and also avoiding environmental pollution, thus further improving the grinding effect of the centrifugal pump. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a grinding mechanism for the housing of a double-suction centrifugal pump proposed in this utility model.

[0017] Figure 2 This is a bottom view of the structure of a double-suction centrifugal pump housing grinding mechanism proposed in this utility model.

[0018] Figure 3 This is a partial cross-sectional view of a grinding mechanism for the housing of a double-suction centrifugal pump proposed in this utility model.

[0019] Figure 4 This is a partially enlarged structural schematic diagram of a grinding mechanism for the casing of a double-suction centrifugal pump proposed in this utility model.

[0020] In the diagram: 1. Base; 2. Connecting seat; 3. Positioning bolt; 4. Sealing gasket; 5. Outer shell; 6. Chip removal pipe; 7. Connecting pipe; 8. Filter cover; 9. Chip inlet; 10. End cap; 11. O-ring; 12. Sealing gasket; 13. Air pump; 14. Support sleeve; 15. Sliding rod; 16. Electric push rod; 17. Electric slide table; 18. Slide table bracket; 19. Grinding motor; 20. Rotating shaft; 21. Grinding bracket; 22. Grinding disc; 23. Sliding sleeve; 24. Dust cover; 25. Observation window; 26. Protective cover. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-4 A grinding mechanism for the housing of a double-suction centrifugal pump includes a base 1, a docking seat 2 welded to the top of the base 1, and multiple positioning bolts 3 welded to the top of the docking seat 2. The top of the docking seat 2 is provided with a housing body 5, and the mounting hole at the bottom of the housing body 5 is connected to the positioning bolts 3. A chip removal pipe 6 is fixed to the top of the base 1 by bolts, and the chip removal pipe 6 is connected to the docking seat 2 and the housing body 5, and the connection is sealed by a sealing ring.

[0023] The other end of the chip removal pipe 6 is welded with a connecting pipe 7, and a filter cover 8 is inserted into one end of the inner wall of the connecting pipe 7. A chip inlet 9 is opened on one side of the filter cover 8. The chip inlet 9 is located directly below the chip removal pipe 6. The chip inlet 9 is a V-shaped hole with an angle of 60°-90° and faces the falling direction of the chip removal pipe 6.

[0024] One end of the filter cover 8 is fixed with an end cap 10 by bolts. Multiple O-rings 11 are fitted on one end of the filter cover 8 near the end cap 10. The O-rings 11 are NBR nitrile rubber rings. The O-rings 11 can not only improve the sealing performance of the filter cover 8, but also improve the stability of the filter cover 8. One end of the connecting pipe 7 is equipped with a vacuum pump 13. The top of the base 1 is equipped with a polishing component, and the polishing component is located on one side of the outer shell body 5.

[0025] Among them, a sealing gasket 4 is provided between the docking seat 2 and the outer shell body 5. The sealing gasket 4 can increase the sealing performance. A sealing gasket 12 is fitted on one end of the filter cover 8. The sealing gasket 12 can further prevent dust from entering the air pump 13.

[0026] The grinding assembly includes a support sleeve 14, a sliding rod 15 slidably connected to the inner wall of the support sleeve 14, and an electric slide table 17 fixed to the top of the sliding rod 15 by bolts. An electric push rod 16 is fixed to the top of the base 1 by bolts, and the output shaft of the electric push rod 16 is fixed to the top of the sliding rod 15. A sliding bracket 18 is provided at the bottom of the electric slide table 17, and a grinding motor 19 is fixed to the inside of the sliding bracket 18 by bolts. A rotating shaft 20 is fixed to the output shaft of the grinding motor 19 by bolts, and a grinding bracket 21 is fixed to the bottom of the rotating shaft 20 by bolts. A grinding disc 22 is fixed to the outer surface of the grinding bracket 21 by bolts. A sliding sleeve 23 is fitted on the outer side of the rotating shaft 20, and the sliding sleeve 23 is connected to the rotating shaft 20 with a gap. A dust cover 24 is welded to the outer surface of the sliding sleeve 23, and an observation window 25 is opened on the outer surface of the dust cover 24. A protective cover 26 is fixed to the top of the base 1 by bolts.

[0027] The working principle of this embodiment is as follows: When it is necessary to deburr the casing of the double-suction centrifugal pump, firstly, connect one end of the casing body 5 to the docking seat 2. The mounting holes on the casing body 5 are aligned with the positioning bolts 3 on the docking seat 2 for fixation. Then, the grinding assembly is started. The electric push rod 16 drives the sliding rod 15 to slide up and down in the support sleeve 14, while simultaneously driving the electric slide table 17 to move up and down to achieve the purpose of vertical adjustment. The electric slide table 17 drives the slide table bracket 18 to slide left and right. The grinding motor 19 in the slide table bracket 18 drives the grinding bracket 21 through the rotating shaft 20. The grinding disc 22 rotates to grind the burrs on the inner wall of the outer casing 5. The dust cover 24, which is connected to the rotating shaft 20 with a gap, is located on the top of the outer casing 5 during grinding. At the same time, the vacuum pump 13 is also started, sucking away the grinding iron filings remaining on the outer casing 1 through the connecting pipe 7 and the chip discharge pipe 6, so as to avoid the iron filings remaining in the double suction centrifugal pump casing. Then the debris enters the filter cover 8 along the chip discharge pipe 6. Then the gas is discharged through the vacuum pump 13, and the debris remains in the filter cover 8. Pulling the end cover 10 can pull the filter cover 8 out from the connecting pipe 7, so that the filter cover 8 can be cleaned.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A grinding mechanism for the housing of a double-suction centrifugal pump, comprising a base (1), characterized in that, The top of the base (1) is fixedly connected to a docking seat (2), and the top of the docking seat (2) is fixedly connected to multiple positioning bolts (3). The top of the docking seat (2) is provided with a housing body (5), and the mounting holes at the bottom of the housing body (5) are aligned with the positioning bolts (3). The top of the base (1) is fixedly connected to a chip removal pipe (6), and the chip removal pipe (6) is connected to the docking seat (2) and the housing body (5). The other end of the chip removal pipe (6) is fixedly connected to a connecting pipe (7), and the connecting pipe is connected to the connecting pipe (7). A filter cover (8) is inserted into one end of the inner wall of the tube (7), and a chip inlet (9) is opened on one side of the filter cover (8). The chip inlet (9) is located directly below the chip discharge tube (6). An end cap (10) is fixedly connected to one end of the filter cover (8). Multiple O-rings (11) are fitted on one end of the filter cover (8) near the end cap (10). An air pump (13) is provided at one end of the connecting tube (7). A polishing component is provided on the top of the base (1), and the polishing component is located on one side of the outer shell body (5).

2. The double-suction centrifugal pump housing grinding mechanism according to claim 1, characterized in that, A sealing gasket (4) is provided between the docking seat (2) and the outer shell body (5).

3. The double-suction centrifugal pump housing grinding mechanism according to claim 1, characterized in that, A sealing gasket (12) is fitted onto one end of the filter cover (8).

4. The double-suction centrifugal pump housing grinding mechanism according to claim 1, characterized in that, The polishing assembly includes a support sleeve (14), a sliding rod (15) is slidably connected to the inner wall of the support sleeve (14), and an electric slide table (17) is fixedly connected to the top of the sliding rod (15). An electric push rod (16) is fixedly connected to the top of the base (1), and the output shaft of the electric push rod (16) is fixed to the top of the sliding rod (15).

5. The double-suction centrifugal pump housing grinding mechanism according to claim 4, characterized in that, The electric slide table (17) has a sliding bracket (18) at its bottom, and a grinding motor (19) is fixedly connected inside the sliding bracket (18). The output shaft of the grinding motor (19) is fixedly connected to a rotating shaft (20), and a grinding bracket (21) is fixedly connected to the bottom end of the rotating shaft (20). A grinding disc (22) is fixedly connected to the outer surface of the grinding bracket (21).

6. The double-suction centrifugal pump housing grinding mechanism according to claim 5, characterized in that, A sliding sleeve (23) is fitted on the outer side of the rotating shaft (20), and the sliding sleeve (23) is connected to the rotating shaft (20) with a gap. A dust cover (24) is fixedly connected to the outer surface of the sliding sleeve (23), and an observation window (25) is opened on the outer surface of the dust cover (24).

7. The double-suction centrifugal pump housing grinding mechanism according to claim 1, characterized in that, A protective cover (26) is fixedly connected to the top of the base (1).

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