Pump shaft maintaining and strengthening method
A pump shaft and water pump technology, applied in pumps, pump components, pump control, etc., can solve the problems of transmission torque failure, large impact on impeller and impeller shaft, and large change in working load, so as to improve life and avoid corrosion.
Inactive Publication Date: 2021-08-10
马震
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Problems solved by technology
[0004] However, since the working point of the centrifugal water pump is close to the peak and valley, water hammer may occur when working in the peak and valley, the impeller and impeller shaft will be greatly impacted, and the fatigue failure will be accelerated; The valve is opened for 10s), which accelerates the fatigue failure of the shaft;
[0005] As for the structure of the transmission shaft and the drive wheel, the two transmit torque through the end square hole, and their strength is poor. After a period of use, the square shaft and the drive wheel are prone to fatigue deformation and wear at the same time. When the edges are worn, the two or transmission torque failure, the prior art lacks a maintenance and strengthening method for the water pump after the transmission shaft and / or the driving wheel structure is worn out
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[0038] The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings, and this embodiment does not constitute a limitation to the present invention.
[0039] A pump shaft maintenance strengthening method, such as figure 1 shown, including the following steps,
[0040] S0: Soak the pump body in clean water for 24 hours to remove pollutants; if the pump body was originally used to transport corrosive liquids such as HF, discharge the corrosive liquid into a special storage tank and handle it regularly;
[0041] S1: Wear a protective mask to decompose the pump body, put the decomposed parts of the pump into the ultrasonic cleaning tank and bleaching tank for cleaning, and finally air dry;
[0042] S2: Cut off the boss of the driving wheel 1, and install the transition bushing 2 with screws (alloy material) on the original boss. The transition bush 2 is made of Hastelloy alloy to improve corrosion resist...
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The invention discloses a pump shaft maintaining and strengthening method, relates to the technical field of water pump part repairing, and solves the problem that an effective maintaining and strengthening method for a water pump is lacked after a transmission shaft and / or driving wheel structure is abraded. The pump shaft maintaining and strengthening method comprises the following steps that S1, a water pump body is decomposed; S2, a boss of a driving wheel is cut off, and a transition shaft sleeve matched with a transmission shaft is installed on the original boss position through a screw; S3, damaged parts are replaced; S4, a combined body of an impeller and a pump shaft is assembled, and dynamic balance verification is performed on the combined body; S5, the pump body is assembled through the tested combined body, and leakage testing is conducted after assembling is completed; and S6, the assembled pump body is subjected to an impact load test. The effects that the water pump can be maintained, meanwhile, the internal vulnerable parts are strengthened, and the service life of the water pump is prolonged are achieved.
Description
technical field [0001] The invention relates to the technical field of repairing parts of water pumps, in particular to a method for repairing and strengthening pump shafts. Background technique [0002] A pump is a machine that transports or pressurizes a liquid. It transmits the mechanical energy of the prime mover or other external energy to the liquid to increase the energy of the liquid. It is mainly used to transport liquids including water, oil, acid and alkali, emulsion, suspoemulsion and liquid metal. [0003] The pump body includes a drive wheel and an impeller shaft. The end of the impeller shaft away from the impeller is a square shaft. The side of the drive wheel close to the impeller shaft is integrally connected to the boss. The middle part of the boss is provided with a square hole matching the square shaft; [0004] However, since the working point of the centrifugal water pump is close to the peak and valley, water hammer may occur when working in the peak...
Claims
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IPC IPC(8): F04D29/20F04D29/62F04D15/00F04D29/02
CPCF04D29/20F04D29/628F04D15/0088F04D29/026
Inventor 马震袁海岭
Owner 马震