A Method for Reducing Mechanical Noise of Locomotive Blower Fan
A technology of blower and blower, applied in mechanical equipment, machine/engine, components of pumping device for elastic fluid, etc. problems, to achieve the effect of reducing radial shaking, reducing mechanical noise, and improving maintenance capabilities
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Publication Date
- 2021-04-13
Smart Images
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Abstract
Description
technical field
[0001] The invention relates to the technical field of reducing the mechanical noise of a locomotive fan, in particular to a method for reducing the mechanical noise of a locomotive fan. Background technique
[0002] The air supply fan of HXD1 locomotive is a confirmed inspection part. During the repair test of C6, after the air conditioner is started and running, the failure of the air supply fan is often loud, and the air supply fan needs to be reworked and replaced. During the locomotive test, all parts of the driver's cab have been installed in place, and the removal and installation of the air supply fan requires the removal of related equipment, and the amount of rework is huge.
[0003] In the prior art, the causes of high noise of the air supply fan during operation are nothing more than electrodynamic noise, mechanical noise of the fan and wind noise. Aiming at the problem of high noise during the operation of the air supply fan, it is determined th...
Examples
Embodiment 1
[0025] Step 1. Disassembly of the rotor coil of the air supply fan: use a wrench to disassemble the plum blossom screwdriver on the outer cover of the air supply fan, and use the special tool for disassembling the rotor coil to remove the coil of the air supply fan; when using the special tool for disassembling the rotor coil , keep the force uniform, and prevent scratches on the surface of the rotor during the process of disassembling the coil and bearing;
[0026] Step 2. Disassembly of the rotor bearing of the blower fan: After the coil of the blower fan is removed in step 1, use the special tool for removing the rotor bearing to remove the upper bearing of the blower fan rotor; when using the special tool for removing the rotor bearing, keep Use uniform force to prevent scratches on the surface of the rotor during disassembly of the coil and bearing;
[0027] Step 3. Bearing replacement or oil filling: Use a measuring tool to measure whether the bearing clearance has incre...
Embodiment 2
[0031] Step 1. Disassembly of the rotor coil of the air supply fan: use a wrench to disassemble the plum blossom screwdriver on the outer cover of the air supply fan, and use the special tool for disassembling the rotor coil to remove the coil of the air supply fan; when using the special tool for disassembling the rotor coil , keep the force uniform, and prevent scratches on the surface of the rotor during the process of disassembling the coil and bearing;
[0032] Step 2. Disassembly of the rotor bearing of the blower fan: After the coil of the blower fan is removed in step 1, use the special tool for removing the rotor bearing to remove the upper bearing of the blower fan rotor; when using the special tool for removing the rotor bearing, keep Use uniform force to prevent scratches on the surface of the rotor during disassembly of the coil and bearing;
[0033] Step 3. Bearing replacement or oil filling: Use a measuring tool to measure whether the bearing clearance has incre...