Vertical single-foundation mixed-flow pump structure facilitating installation and aligning

Abstract

The utility model discloses a vertical single-base mixed-flow pump structure facilitating installation and aligning, which comprises a pump seat, an embedded part is arranged below the pump seat and is horizontally placed, a water outlet tee joint is connected with the pump seat, a guide vane body and a middle connecting pipe are assembled and are connected with the water outlet tee joint, and the middle connecting pipe is connected with the pump seat. The pump shaft sequentially penetrates through the pump base, the water outlet tee joint and the middle connecting pipe to be connected with the impeller in the guide vane body. After the embedded part is adjusted to be horizontal, the water pump barrel body is erected on the embedded part to be subjected to sectional type aligning, a section of water pump barrel body is placed into a pump pit after being adjusted, a section of water pump barrel body is connected to be erected on the embedded part to be subjected to aligning again, aligning of the water pump with three or more bearing positions is coped, and on-site installation work of the water pump is obviously reduced.

Description

Technical Field

[0001] The utility model relates to the field of pumps, in particular to a vertical single-base mixed-flow pump structure which is convenient for installation and centering. Background Art

[0002] The existing vertical single foundation mixed flow pump installation method mainly includes the following steps: first, assemble the guide vane body, the intermediate connecting pipe, the water outlet tee, and the pump seat, hoist the assembled outer cylinder into the pump pit, place it on the foundation, then align the horizontal position of the pump seat by adjusting the shim, and finally measure the concentricity by a centrifugal machine.

[0003] This method is suitable for pumps with two bearing positions. For pumps with three or more bearing positions, this self-aligning method is time-consuming and labor-intensive. Utility Model Content

[0004] The utility model provides a vertical single-base mixed-flow pump structure which is convenient for installation and centering.

[0005] In order to achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions:

[0006] A vertical single-base mixed-flow pump structure that is easy to install and align, includes a pump seat, an embedded part is arranged below the pump seat, the embedded part is placed horizontally, a water outlet tee is connected to the pump seat, a guide vane body and an intermediate connecting pipe are assembled and connected to the water outlet tee, and a pump shaft passes through the pump seat, the water outlet tee and the intermediate connecting pipe in sequence and is connected to an impeller in the guide vane body.

[0007] Further technology of the utility model:

[0008] Preferably, an intermediate bearing seat is provided in the intermediate connecting pipe, the pump shaft passes through the intermediate bearing seat, the intermediate bearing seat is directly welded to the inner wall of the intermediate connecting pipe, and the load bearing is ensured by providing a rib plate.

[0009] Preferably, the pump shaft is a segmented structure, with the head and tail connected by a sleeve coupling.

[0010] The beneficial effects of the utility model are:

[0011] After the embedded parts are adjusted to be level, the water pump cylinder is placed on the embedded parts for segmented alignment. After one section is adjusted, it is placed in the pump pit. Then another section is connected and placed on the embedded parts for further alignment. This method can be used to align the water pump with 3 or more bearing positions, which can significantly reduce the on-site installation work of the water pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] The symbols in the figure are: 1 guide vane body, 2 intermediate connecting pipe, 3 intermediate bearing seat, 4 bearing, 5 sleeve coupling, 6 water outlet tee, 7 embedded parts, 8 pump seat. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be further described in detail below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model but not all. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0016] like Figure 1 The present embodiment provides a vertical single-base mixed-flow pump structure that is easy to install and align, including a pump seat 8, an embedded part 7 is arranged below the pump seat 8, the embedded part 7 is placed horizontally, the water outlet tee 6 is connected to the pump seat 8, the guide vane body 1 and the intermediate connecting pipe 2 are assembled and connected to the water outlet tee 6, and the pump shaft passes through the pump seat 8, the water outlet tee 6 and the intermediate connecting pipe 2 in sequence and is connected to the impeller in the guide vane body 1.

[0017] Before starting to align the heart, first adjust the horizontal position of the embedded part 7, then assemble the guide vane body 1 and the intermediate pipe 2 and place them on the embedded part 7, measure the concentricity of the cylinder bearing position by using a centrifugal instrument, adjust the concentricity to within the range allowed by the standard, and then install the water outlet tee 6 and the pump seat 8. When the mounting surface of the pump seat 8 is connected to the mounting surface of the embedded part 7, measure the concentricity of the bearing position at the pump seat 8 relative to the other two bearing positions. The pump shaft is a segmented structure, and the head and tail are connected by a sleeve coupling 5. Through segmented adjustment, finally, insert the pump shaft into the shaft hole to complete the subsequent installation work.

[0018] The intermediate pipe 2 is provided with an intermediate bearing seat 3, and the intermediate bearing seat 3 is provided with a bearing 4. The pump shaft passes through the intermediate bearing seat 3, and the intermediate bearing seat 3 is directly welded to the inner wall of the intermediate pipe 2. The load bearing is ensured by setting a rib plate. The concentricity of the parts is ensured by fine machining. When installing, it is only necessary to adjust the concentricity between the outer cylinder parts. This structure and alignment method can be used for the alignment of a long outer cylinder composed of multiple cylinder sections and multiple bearing positions.

[0019] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. A vertical single-base mixed flow pump structure that is easy to install and align, characterized in that: It includes a pump seat, under which an embedded part is arranged, the embedded part is placed horizontally, the water outlet tee is connected to the pump seat, the guide vane body and the middle connecting pipe are assembled and connected to the water outlet tee, and the pump shaft passes through the pump seat, the water outlet tee and the middle connecting pipe in sequence and is connected to the impeller in the guide vane body.

2. A vertical single-base mixed flow pump structure that is easy to install and align according to claim 1, characterized in that: An intermediate bearing seat is arranged in the intermediate pipe, and the pump shaft passes through the intermediate bearing seat. The intermediate bearing seat is directly welded to the inner wall of the intermediate pipe, and the load bearing is ensured by arranging a rib plate.

3. A vertical single-base mixed flow pump structure that is easy to install and align according to claim 1, characterized in that: The pump shaft is a segmented structure, with the head and tail connected by a sleeve coupling.

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