Connecting split structure of submersible electric pump

Abstract

The utility model discloses a connection split structure of a submersible electric pump, and relates to the technical field of submersible electric pumps, the connection split structure of the submersible electric pump comprises an impeller water inlet end and a sealing oil cavity end, the bottom end of the impeller water inlet end is fixedly provided with a second clamping block, and the top end of the sealing oil cavity end is fixedly provided with a first clamping block; wherein the first clamping block and the second clamping block are mutually clamped, meanwhile, grooves are formed in the first clamping block and the second clamping block, and when the first clamping block and the second clamping block are attached, the first clamping block and the second clamping block can be communicated with each other. According to the split connection structure of the submersible electric pump, in the product installation process, an automatic tool can be fully used for fastening bolts, the split connection facilitates visual observation of the air leakage phenomenon of air holes of a casting in the air tightness test, the air holes with air leakage can be completely found, and the leakage detection phenomenon does not exist.

Description

Technical Field

[0001] The utility model relates to the technical field of submersible electric pumps, in particular to a submersible electric pump connection split structure. Background Art

[0002] Submersible pumps are important equipment for deep well water extraction. When in use, the entire unit submerges in the water to extract groundwater to the surface for domestic water, mine rescue, industrial cooling, farmland irrigation, seawater lifting, ship loading, and fountain landscape.

[0003] The existing submersible pumps on the market have two ends connected by the impeller water inlet ring surface and the mechanical seal oil chamber surface, with supporting ribs in the middle. The three are connected as an integral part by casting. The casting production of its parts has low production efficiency and high production cost. Once the structure is damaged, it needs to be completely replaced, which has high cost of use. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a submersible electric pump connection split structure to solve the technical problem that the two ends of the submersible pump connection are respectively an impeller water inlet ring surface and a mechanical seal oil chamber surface, with supporting ribs in the middle, and the three are connected as an integral part by casting molding, the casting production of its parts has low production efficiency and high production cost, and once the structure is damaged, all of them need to be replaced, resulting in high cost of use.

[0006] (II) Technical solution

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A submersible electric pump connection split structure The submersible electric pump connection split structure includes an impeller water inlet end and a sealing oil chamber end, a second clamping block is fixedly installed on the bottom end of the impeller water inlet end, and a first clamping block is fixedly installed on the top end of the sealing oil chamber end. Grooves are provided inside the first clamping block and the second clamping block. When the first clamping block and the second clamping block are in contact, the two are in a through state, at least two mounting blocks are fixedly installed on the surface of the impeller water inlet end, and at least two threaded openings are provided on the top end of the sealing oil chamber end, a first threaded sleeve is fixedly installed on the inner side of each of the first clamping blocks, and a second threaded sleeve is fixedly installed on the inner side of each of the second clamping blocks, and an oil filling port is fixedly installed on the top end of the sealing oil chamber end located between the two first threaded sleeves.

[0009] (III) Beneficial effects

[0010] 1. By splitting the traditional product connection, the split design changes the traditional casting process and can realize automated casting production. The split design avoids the sand inclusion when the parting surface is closed in the traditional casting process, which causes casting defects on the parting surface, reduces the strength of the connection structure, and causes the connection to break during product use. At the same time, the individual parts can be replaced.

[0011] 2. During the installation of the split structure, automated tools can be fully used to tighten the bolts. The split connection is convenient for visually observing the air leakage of the casting pores during the air tightness test. The leaking pores can be completely discovered without missed inspections. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0013] Figure 1 This is a structural diagram of the water inlet end of the impeller of the utility model;

[0014] Figure 2 This is a structural diagram of the sealing oil chamber end of the utility model;

[0015] Figure 3 This is a structural diagram of the clamping block of the utility model;

[0016] Figure 4 This is a structural diagram of the fastening device of the utility model.

[0017] Legend: 1. Impeller water inlet end; 11. Mounting block; 12. Threaded port; 13. First clamping block; 14. Second clamping block; 15. First threaded sleeve; 16. Second threaded sleeve; 17. Oil filling port; 2. Sealed oil chamber end. DETAILED DESCRIPTION

[0018] The embodiment of the present application provides a submersible electric pump connection split structure, which effectively solves the problem that the two ends of the submersible pump connection are respectively the impeller water inlet ring surface and the mechanical seal oil chamber surface, and the middle is the supporting rib. The three are connected as an integral part by casting molding. The casting production of its parts has low production efficiency and high production cost. Once the structure is damaged, it needs to be completely replaced, and the cost of use is high. By designing the traditional product connection into a split type, the split design changes the traditional casting process and realizes automated casting production. The split design avoids the sand inclusion when the parting surface of the traditional casting process is closed, and the parting surface has casting defects, which reduces the strength of the connection structure and causes the connection to break during product use. At the same time, the individual components can be replaced to reduce the cost of use.

[0019] Example

[0020] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the technical solution in the embodiment of the present application effectively solves the technical problem that the two ends of the submersible pump are connected respectively by the impeller water inlet ring surface and the mechanical seal oil cavity surface, and the middle is the supporting rib, and the three are connected as an integral part by casting molding. In terms of the casting production of its parts, the production efficiency is low, the production cost is high, and once the structure is damaged, all of them need to be replaced, and the use cost is high. The overall idea is as follows:

[0021] In view of the problems existing in the prior art, the utility model provides a submersible electric pump connection split structure, including an impeller water inlet end 1 and a sealed oil chamber end 2, the bottom end of the impeller water inlet end 1 is fixedly installed with a second clamping block 14, the top end of the sealed oil chamber end 2 is fixedly installed with a first clamping block 13, the interiors of the first clamping block 13 and the second clamping block 14 are both provided with grooves, when the first clamping block 13 and the second clamping block 14 are fitted, the two are in a through state, by rotating the bolt, the sealed oil chamber end 2 is fixedly connected to the submersible pump, and at the same time the impeller water inlet end 1 is moved, the impeller water inlet end 1 is also passed through the output end of the submersible pump, and the impeller water inlet end 1 is rotated, so that the impeller water inlet end 1 drives the second The clamping block 14 is aligned with the first clamping block 13, and the impeller water inlet end 1 and the sealing oil chamber end 2 are combined and installed with each other. By designing the traditional product connection into a split type, the split design changes the traditional casting process and realizes automated casting production. At least two mounting blocks 11 are fixedly installed on the surface of the impeller water inlet end 1, and at least two threaded openings 12 are opened at the top of the sealing oil chamber end 2. A first threaded sleeve 15 is fixedly installed on the inner side of each of the first clamping blocks 13, and a second threaded sleeve 16 is fixedly installed on the inner side of each of the second clamping blocks 14. An oil filling port 17 is fixedly installed on the top of the sealing oil chamber end 2 located between the two first threaded sleeves 15.

[0022] Working principle:

[0023] The first step is to move the sealing oil chamber end 2, let the top of the first clamping block 13 face upward, pass the output end of the submersible pump through the inside of the sealing oil chamber end 2, push the sealing oil chamber end 2, let the sealing oil chamber end 2 and the submersible pump fit each other, take the bolts, pass the bolts through the inside of the threaded opening 12 in turn, and fix the sealing oil chamber end 2 with the submersible pump by turning the bolts. At the same time, move the impeller water inlet end 1, pass the impeller water inlet end 1 through the output end of the submersible pump, turn the impeller water inlet end 1, and let the impeller water inlet end 1 drive the second clamping block 1 4 is aligned with the first clamping block 13, and the bolt is taken and passed through the first threaded sleeve 15 and the second threaded sleeve 16. The impeller water inlet end 1 and the sealing oil chamber end 2 are assembled and installed by rotation. The traditional product connection is designed as a split type. The split type design changes the traditional casting process and can realize automatic casting production. The split type design avoids the sand inclusion when the parting surface of the traditional casting process is closed, and the parting surface has casting defects, which reduces the strength of the connection structure and causes the connection to break during product use.

[0024] The second step is that during the installation of the split structure, automated tools can be fully used to tighten the bolts. The split connection is convenient for visually observing the air leakage of the casting pores during the air tightness test. The leaking pores can be completely discovered without missed inspections. The split connection between the impeller water inlet end 1 and the sealing oil chamber end 2 can be produced by automated casting, and its casting cost can be reduced by more than 1%.

[0025] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A submersible electric pump connection split structure, characterized in that: The submersible electric pump has a split-body structure, comprising an impeller water inlet end (1) and a sealed oil chamber end (2), wherein a first clamping block (13) is fixedly mounted on the top end of the sealed oil chamber end (2), and a second clamping block (14) is fixedly mounted on the bottom end of the impeller water inlet end (1); The first clamping block (13) and the second clamping block (14) are clamped to each other, and grooves are provided inside the first clamping block (13) and the second clamping block (14).

2. A submersible electric pump connection split structure as claimed in claim 1, characterized in that: At least two mounting blocks (11) are fixedly mounted on the surface of the impeller water inlet end (1).

3. A submersible electric pump connection split structure as claimed in claim 1, characterized in that: At least two threaded openings (12) are formed at the top end of the sealing oil chamber end (2).

4. A submersible electric pump connection split structure as claimed in claim 1, characterized in that: When the first clamping block (13) and the second clamping block (14) are in contact with each other, the two are in a connected state.

5. A submersible electric pump connection split structure as claimed in claim 1, characterized in that: A first threaded sleeve (15) is fixedly mounted on the inner side of each first clamping block (13), and a second threaded sleeve (16) is fixedly mounted on the inner side of each second clamping block (14).

6. A submersible electric pump connection split structure as claimed in claim 1, characterized in that: An oil filling port (17) is fixedly mounted on the top end of the sealing oil chamber end (2) between the two first threaded sleeves (15); The bottom end of the oil filling port (17) and the sealing oil chamber end (2) are integrally cast.

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