Vertical mixed flow pump comprehensive maintenance platform

Abstract

The invention belongs to a comprehensive maintenance platform of a vertical mixed-flow pump. The comprehensive maintenance platform comprises a base, wherein a bearing body overturning mechanism is arranged at the left side of the upper surface of the base; an impeller adjusting mechanism is arranged below the bearing body overturning mechanism; an impeller loading / unloading mechanism is arranged at the right side of the upper surface of the base; the bearing body overturning mechanism comprises a trapezoidal bracket, bearings on the upper surface of the trapezoidal bracket, an overturning platform between the bearings, a speed reducer connected with one end of a bearing base, a driving motor connected with the speed reducer, and an electric control operation box; the impeller adjusting mechanism comprises a rail on the base, a sliding car on the rail, a lifting platform above the sliding car, a torque sensor on the upper surface of the lifting platform, and an impeller positioning block; and the impeller loading / unloading mechanism comprises a frame, a planetary speed reducer, a coupling and a motor. The comprehensive maintenance platform solves the problems of inconvenience for disassembly, mounting and detection of the vertical mixed-flow pump, is specifically suitable for the maintenance operation of large-scale assembly line total installed capacities, reduces the labor intensity of maintenance men, improves the working efficiency, and eliminates the potential safety hazards in the maintenance process.

Description

technical field [0001] The invention belongs to the technical field of assembly and maintenance of vertical pumps, and in particular relates to a comprehensive maintenance platform for vertical mixed-flow pumps. Background technique [0002] In the existing vertical mixed-flow pump, the medium is easy to crystallize, and the crystallization of the impeller causes dynamic balance imbalance, aggravated equipment vibration, increased equipment failure rate, and increased maintenance frequency. The existing large-flow vertical mixed-flow pumps have a flow rate of more than 5000m3 / h. The equipment body is usually relatively large, and the quality of each component is also relatively large. Therefore, it is very difficult to assemble and maintain large-scale vertical mixed-flow pumps. Currently, maintenance The best method is to manually operate auxiliary tools such as driving, sleepers, booster rods, and hydraulic jacks. After the maintenance personnel flatten the rotor body ass...

AI Technical Summary

Problems solved by technology

[0002] In the existing vertical mixed flow pump, the medium is easy to crystallize, and the crystallization of the impeller will lead to an imbalance of dynamic balance, aggravated equipment vibration, increased equipment failure rate, and increased maintenance frequency

The existing large-flow vertical mixed-flow pumps have a flow rate of more than 5000m3 / h. The equipment body is usually relatively large, and the quality of each component is also relatively large. Therefore, it is very difficult to assemble and maintain large-scale vertical mixed-flow pumps. Currently, maintenance The best method is to manually operate auxiliary tools such as driving, sleepers, booster rods, and hydraulic jacks. After the maintenance personnel flatten the rotor body assembly with sleepers and wedge the impeller with sleepers, manually assemble or disassemble the impeller through the booster bar, drag it to a vertical position by driving, then use the sleepers to solidify the assembly, and then enter In the next link, the entire operation process took more than 32 working hours, and there were obvious safety hazards in the operation process, and there were obvious safety hazards in the operation process. At the same time, since the weight of a single component exceeded 70Kg, the physical requirements of the operators were quite strict. lead to lower maintenance work efficiency

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