Integral disassembly and assembly method for core cladding of large vertical water pump

A disassembly method and water pump technology, applied in transportation and packaging, non-variable pumps, components of pumping devices for elastic fluids, etc., can solve unreasonable structural design, affect installation efficiency, and fail to realize water pumps Group lifting and assembly and disassembly to achieve the effect of improving installation efficiency and maintenance convenience

Active Publication Date: 2022-05-13
DONGFANG ELECTRIC MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the unreasonable structural design, it is impossible to realize the overall lifting and assembly and d

Method used

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  • Integral disassembly and assembly method for core cladding of large vertical water pump
  • Integral disassembly and assembly method for core cladding of large vertical water pump
  • Integral disassembly and assembly method for core cladding of large vertical water pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] see Figure 1-Figure 3 , a large vertical water pump cartridge overall disassembly method, comprising the following steps:

[0034] a. Place the impeller of the water pump core package on the block, place the impeller horizontally, hoist the main shaft 1 in place, and fix the impeller on the main shaft 1;

[0035] b. Place the top cover bracket 22 outside the impeller, hoist the top cover 4 into place, install the main shaft seal 19 on the main shaft 1, install the jacking mechanism of the pump core packaging and dismantling device on the top cover 4, and adjust the jacking mechanism to tighten The main shaft 1 is used to radially fix the main shaft 1 and the top cover 4 at the 19 positions of the main shaft seal;

[0036] c. Install the bearing 5, tighten the adjusting screw 18 in the bearing 5, so that the wedge plate 16 moves downward, the adjusting block 17 moves close to the direction of the main shaft 1 under the positioning action of the thrust block 20, and the...

Embodiment 2

[0040] see Figure 1-Figure 3 , a large vertical water pump cartridge overall disassembly method, comprising the following steps:

[0041] a. Place the impeller of the water pump core package on the block, place the impeller horizontally, hoist the main shaft 1 in place, and fix the impeller on the main shaft 1;

[0042] b. Place the top cover bracket 22 outside the impeller, hoist the top cover 4 into place, install the main shaft seal 19 on the main shaft 1, install the jacking mechanism of the pump core packaging and dismantling device on the top cover 4, and adjust the jacking mechanism to tighten The main shaft 1 is used to radially fix the main shaft 1 and the top cover 4 at the 19 positions of the main shaft seal;

[0043] c. Install the bearing 5, tighten the adjusting screw 18 in the bearing 5, so that the wedge plate 16 moves downward, and the adjusting block 17 moves in the direction of the main shaft 1 under the positioning action of the thrust block 20, and the b...

Embodiment 3

[0048] see Figure 1-Figure 3 , a large vertical water pump cartridge overall disassembly method, comprising the following steps:

[0049] a. Place the impeller of the water pump core package on the block, place the impeller horizontally, hoist the main shaft 1 in place, and fix the impeller on the main shaft 1;

[0050] b. Place the top cover bracket 22 outside the impeller, hoist the top cover 4 into place, install the main shaft seal 19 on the main shaft 1, install the jacking mechanism of the pump core packaging and dismantling device on the top cover 4, and adjust the jacking mechanism to tighten The main shaft 1 is used to radially fix the main shaft 1 and the top cover 4 at the 19 positions of the main shaft seal;

[0051] c. Install the bearing 5, tighten the adjusting screw 18 in the bearing 5, so that the wedge plate 16 moves downward, and the adjusting block 17 moves in the direction of the main shaft 1 under the positioning action of the thrust block 20, and the b...

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PUM

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Abstract

The invention discloses an integral disassembly and assembly method for a core cladding of a large vertical water pump, which belongs to the technical field of water pump installation and is characterized by comprising the following steps: a, fixing an impeller on a main shaft; b, a jacking mechanism is installed, the jacking mechanism is adjusted to jack the main shaft, and the main shaft at the main shaft sealing position is fixed to the top cover in the radial direction; c, a bearing is installed, the main shaft and the bearing are fixed in the radial direction, the water pump core bag is hoisted into a machine pit through a hoisting base, a bearing hanging frame and a jacking mechanism are disassembled, and an adjusting screw is unscrewed to enable a bearing bush to loosen the main shaft; and d, when the water pump core bag is dismounted, the seat ring fastening bolt is dismounted, the main shaft and the top cover at the main shaft sealing position are radially fixed again, the adjusting screw in the bearing is tightened, the bearing bush of the water pump core bag tightly holds the main shaft, the main shaft and the bearing are radially fixed, and the water pump core bag is hoisted out of the machine pit. The water pump core bag can be integrally lifted into and out of a machine pit, the water pump core bag can be quickly mounted and dismounted, and the mounting efficiency and the maintenance convenience are greatly improved.

Description

technical field [0001] The invention relates to the technical field of water pump installation, in particular to a method for integral disassembly and assembly of a large vertical water pump cartridge. Background technique [0002] When installing and overhauling a large water pump, due to the structural design of the pump unit, it is impossible to install and disassemble the overall core package like a small water pump. The installation sequence of large water pumps is generally: the impeller and the main shaft are hoisted into the machine pit and installed in place; hoisted into the top cover and put on the seat ring; the motor shaft and the pump shaft are coupled; the bearing and seal are installed; commissioning and operation. Disassembly is the reverse order of installation. The above scheme needs to install and dismantle the main components of the pump unit one by one, such as impeller, main shaft, top cover, bearing and seal in the machine pit. The construction perio...

Claims

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Application Information

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IPC IPC(8): F04D29/60F04D29/20F04D29/10F04D29/046F04D29/00B23P19/00B66C1/10
CPCF04D29/605F04D29/20F04D29/106F04D29/046F04D29/007B23P19/00B66C1/10
Inventor 张建张小刚凡家异党鉴宋敏邓金杰王伦其王虹陈太平周超马艳梅周顺马安婷
Owner DONGFANG ELECTRIC MACHINERY
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