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Processing technology for precisely-matched connecting holes of water pump main shaft and motor main shaft

A processing technology and motor technology, which is applied in the field of precision matching connection hole processing technology, can solve the problem that the water pump spindle and the motor spindle are not interchangeable, and achieve the effects of ensuring processing accuracy, improving installation efficiency and improving processing efficiency.

Pending Publication Date: 2022-07-29
CHONGQING WATER TURBINE WORKS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a precision matching connection hole processing technology for the main shaft of the water pump and the main shaft of the motor to solve the problem that the main shaft of the water pump and the main shaft of the motor do not have interchangeability

Method used

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  • Processing technology for precisely-matched connecting holes of water pump main shaft and motor main shaft
  • Processing technology for precisely-matched connecting holes of water pump main shaft and motor main shaft

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1. If figure 1 and figure 2 As shown, for rough machining of water pump spindle 1 and motor spindle 2 on the upper horizontal car, a margin of 2mm-3mm on one side is reserved for each part, and the end faces of the two ends are turned in place;

[0024] 2. Perform ultrasonic inspection;

[0025] 3. Mark the cross line at the center of the flanges at the two ends of the pump spindle 1 and the raised flange end of the motor spindle 2, respectively, and the processing line of each connection hole;

[0026] 4. Set up the CNC boring machine, align with the line, and leave a 10mm allowance for each finely matched connecting hole, and drill and boring the remaining holes in place;

[0027] 5. Finish machining on the sleeping car: the inner circle of the concave flange stop of the water pump spindle 1, the outer circle and end face of the convex flange stop of the motor spindle 2 are processed to the drawing size; the pump spindle 1 convex flange stop, outer circle, end face...

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Abstract

The invention relates to the technical field of water pump machining, and discloses a water pump main shaft and motor main shaft fine matching connecting hole machining technology which comprises the following steps that 1, a water pump main shaft and a motor main shaft are roughly machined; 2, respectively drawing central cross curves; 3, roughly boring each finely-matched connecting hole; 4, finish machining; 5, respectively marking central cross curves of a water pump spindle concave spigot flange and a motor spindle convex spigot flange according to the roughly drilled positions; 6, aligning the central cross curve according to the mark, installing a boring die, symmetrically connecting by using a process bolt, roughly and finely boring the two finely matched connecting holes in the symmetrical positions in place in sequence, and installing a tool finely matched bolt; 7, the process bolts are dismantled, the rest fine matching connecting holes are roughly and finely bored in place, and the method has the advantages of interchangeability and high machining efficiency.

Description

technical field [0001] The invention relates to the technical field of water pump processing, in particular to a processing technology for precise matching connecting holes of a water pump main shaft and a motor main shaft. Background technique [0002] The large and medium-sized water pump main shaft and the motor main shaft are usually connected by fine matching holes to transmit torque. The conventional processing method is to roughly drill and boring the connection holes of the water pump main shaft and the motor main shaft to retain the machining allowance, and then install the large horizontal car to align the concentricity of the two axes. After the design requirements, the process bolts and nuts are used to connect them into one, and then the same boring process is carried out in turn. However, the mixed-flow water pump is mass-produced due to the large number of sets, and the water pump spindle and the motor spindle are processed in different manufacturers. The meth...

Claims

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Application Information

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IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 赵红琼邓润华
Owner CHONGQING WATER TURBINE WORKS
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