Comprehensive maintenance platform of vertical mixed-flow pump

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. Existing large flow vertical mixed flow pump with a flow rate of 5000m 3 For those above / h, the main body of the equipment is often relatively large, and the quality of each component is also relatively large, so the assembly and maintenance of large vertical mixed flow pumps are very difficult. Auxiliary tools such as Qianjinding are manually operated. Specifically, the steel wire rope is fixed on the rotor body and the rear pump cover assembly, and the assembly is pulled down by driv...

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

Existing large flow vertical mixed flow pump with a flow rate of 5000m 3 For those above / h, the main body of the equipment is often relatively large, and the quality of each component is also relatively large, so the assembly and maintenance of large vertical mixed flow pumps are very difficult. Auxiliary tools such as Qianjinding are manually operated. Specifically, the steel wire rope is fixed on the rotor body and the rear pump cover assembly, and the assembly is pulled down by driving and dragging. After the sleeper wedges the impeller, the impeller is manually assembled or disassembled through the booster rod, then dragged to a vertical position by driving, and then the assembly is solidified with the sleeper pad, and then enters the next link. The entire operation process takes up to 32 man-hours In addition, there are obvious safety hazards in the operation process, and the weight of a single component exceeds 70Kg, so the physical requirements of the operators are quite strict, resulting in low maintenance efficiency.

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