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CN-121984292-A - Plastic package motor rotor dynamic balance adjusting device

CN121984292ACN 121984292 ACN121984292 ACN 121984292ACN-121984292-A

Abstract

The invention relates to the technical field of motors, in particular to a dynamic balance adjusting device for a plastic package motor rotor, which comprises a dynamic balance operation cabinet, a balance parameter analysis end, a plastic package rotor assembly, a dynamic balance transmission end and a dynamic balance adjustment end, and is characterized in that the balance parameter analysis end, the dynamic balance transmission end and the dynamic balance adjustment end are integrally arranged on the operation table top of the dynamic balance operation cabinet; because the trimming debugging disc and the hoof-shaped supporting disc are arranged on the periphery of the transmission main shaft in a rotating and clamping manner, the distribution orientation of the non-welding balance adjusting assembly can be changed after balance adding and weight removing, so that the stress distribution after balance processing is more uniform, the abrupt increase of local stress concentration coefficients is avoided, the mass dispersion caused by fluctuation of a welding process can be avoided compared with the traditional weight adding and removing manner, and meanwhile, the reversible adjusting mode allows the secondary correction after debugging errors.

Inventors

  • HUANG LIJUN
  • ZHOU XIANGYANG
  • LEI WEIXIN
  • ZENG WEIGUANG
  • XIE JUNXU

Assignees

  • 江门市力丰电机有限公司

Dates

Publication Date
20260505
Application Date
20260205

Claims (8)

  1. 1. The plastic package motor rotor dynamic balance adjusting device comprises a dynamic balance operation cabinet (1), a balance parameter analysis end (2), a plastic package rotor assembly (3), a dynamic balance transmission end (4) and a dynamic balance adjustment end (5), and is characterized in that the balance parameter analysis end (2), the dynamic balance transmission end (4) and the dynamic balance adjustment end (5) are integrally arranged on an operation table top of the dynamic balance operation cabinet (1); The plastic-sealed rotor assembly (3) comprises a transmission main shaft (31), a rotor structure (32), a reversible balance mass correction assembly (33) and a non-welding balance adjustment assembly (34), wherein the rotor structure (32) is arranged on the outer side of the transmission main shaft (31), the reversible balance mass correction assembly (33) is sleeved on the outer side of the transmission main shaft (31), the non-welding balance adjustment assembly (34) is arranged on the inner side of the reversible balance mass correction assembly (33) at equal intervals in an annular shape, the reversible balance mass correction assembly (33) is used for adjusting the phase configuration quantity of the non-welding balance adjustment assembly (34) during weighting or de-weighting balance treatment once, and in the secondary adjustment, the reversible balance mass correction assembly (33) is also used for keeping the connectivity with the transmission main shaft (31), the reversible balance mass correction assembly (33) comprises a balancing disc (331) and a shape support disc (332), the balancing disc (331) is matched with the welding balance disc (34) in an annular shape, the balancing disc (343) is matched with the welding balance disc (34) in a sliding mode, the sliding disc (341) is matched with the non-welding balance disc (341) in a sliding mode, and the welding disc (341) is matched with the non-welding balance disc (341), the standard limiting surface (341) and the balance weight adjusting lock column (342) are integrally formed, the annular calibration milling grooves (343) are formed in an equidistant mode and are formed in the periphery of the balance weight adjusting lock column (342), and the balance weight adjusting lock column (342) sequentially penetrates through the balancing debugging disc (331) and the hoof-shaped supporting disc (332).
  2. 2. The device for dynamically adjusting the balance of a plastic package motor rotor according to claim 1, wherein the reference limiting surface (341) is located on the outer side of the balancing adjustment plate (331), and one end of the weight adjusting lock post (342) protrudes out of the balancing adjustment plate (331).
  3. 3. The device for dynamically balancing the rotor of the plastic package motor according to claim 1, wherein a balancing thread locking piece (35) is further arranged on the inner sides of the balancing adjustment disc (331) and the hoof-shaped support disc (332), and the balancing thread locking piece (35) sequentially penetrates through the balancing adjustment disc (331) and the hoof-shaped support disc (332) and is in threaded connection with the balancing adjustment disc (331) and the hoof-shaped support disc (332).
  4. 4. The device for dynamically adjusting the balance of a plastic package motor rotor according to claim 1, wherein at least two non-welding balance adjusting assemblies (34) among the plurality of non-welding balance adjusting assemblies (34) are fixedly connected with the balancing adjustment plate (331).
  5. 5. The device for dynamically adjusting the balance of a plastic package motor rotor according to claim 1, wherein the balancing adjustment plate (331) and the hoof-shaped support plate (332) are provided with a plurality of dislocation adjustment transverse holes (3301), and dislocation adjustment transverse holes (3301) formed in the balancing adjustment plate (331) are staggered with dislocation adjustment transverse holes (3301) formed in the hoof-shaped support plate (332).
  6. 6. The device for adjusting dynamic balance of a plastic package motor rotor according to claim 1, wherein the hoof-shaped supporting plate (332) is further provided with a yielding cavity (3302), and the hoof-shaped supporting plate (332) is rotatably connected to the periphery of the transmission main shaft (31) through the yielding cavity (3302).
  7. 7. The device for adjusting dynamic balance of a plastic package motor rotor according to claim 1, wherein the output end of the dynamic balance adjustment end (5) is located at the outer side of the reversible balance mass correction component (33) for cutting during weight removal of the non-welding balance adjustment component (34).
  8. 8. The device for dynamically adjusting the balance of a plastic package motor rotor according to claim 1, wherein the hoof-shaped supporting plate (332) is provided with a driving end limiting groove (3303), and the balancing adjustment plate (331) rotates with the hoof-shaped supporting plate (332) through the driving end limiting groove (3303).

Description

Plastic package motor rotor dynamic balance adjusting device Technical Field The invention relates to the technical field of motors, in particular to a dynamic balance adjusting device for a plastic package motor rotor. Background The plastic package motor is characterized in that engineering plastics such as a stator core and windings of the motor are integrally packaged by adopting a plastic packaging technology, a traditional motor stator insulation treatment process and a metal casing of a common motor can be omitted, the micro-special motor is mainly applied to energy-saving household appliances such as energy-saving dust collectors, energy-saving smoke ventilators, energy-saving air conditioners, energy-saving washing machines and other household appliances and instrument fans, in order to reduce centrifugal vibration of the plastic package motor caused by mass distribution of a rotor, dynamic balance treatment is required to be carried out on the rotor, the traditional dynamic balance treatment mode mainly adopts a weighting and de-weighting method, but the metallographic structure of a rotor end material is changed due to high temperature generated in a welding process in the traditional welding weighting mode, a heat affected zone is easy to form, local annealing, hardness change or microcrack generation is likely to be caused, and a welding point is also a significant stress concentration point, and is likely to be a source of fatigue crack under an alternating load of high-speed rotation, loosening can occur under a long-time high-speed vibration environment through a gasket threaded installation mode, so that the balance position or quality is changed, the balance state is invalid, and the balance state is likely to influence on the rotor, and the axial movement of the balance is quite insensitive to the position, therefore the plastic package motor is still ideal. Disclosure of Invention Aiming at the problems in the prior art, the invention provides a dynamic balance adjusting device for a plastic package motor rotor. The technical scheme adopted for solving the technical problems is that the dynamic balance adjusting device of the plastic package motor rotor comprises a dynamic balance operation cabinet, a balance parameter analysis end, a plastic package rotor assembly, a dynamic balance driving end and a dynamic balance debugging end, and is characterized in that the balance parameter analysis end, the dynamic balance driving end and the dynamic balance debugging end are integrally arranged on the operation table top of the dynamic balance operation cabinet; The plastic package rotor assembly comprises a transmission main shaft, a rotor structure, a reversible balance mass correction assembly and a non-welding balance adjustment assembly, wherein the rotor structure is arranged on the outer side of the transmission main shaft, the reversible balance mass correction assembly is sleeved on the outer side of the transmission main shaft, the number of the non-welding balance adjustment assemblies is a plurality, the non-welding balance mass correction assemblies are arranged on the inner side of the reversible balance mass correction assembly at equal intervals in an annular shape, the reversible balance mass correction assembly is used for debugging the phase configuration quantity of the non-welding balance adjustment assembly during weighting or de-weighting balance treatment once, and in the secondary adjustment, the reversible balance mass correction assembly is also used for keeping the connectivity with the transmission main shaft in a debugging state; The reversible balance mass correction assembly comprises a trimming adjustment disc and a hoof-shaped support disc, the trimming adjustment disc is in sliding clamping with the hoof-shaped support disc, and the non-welding balance adjustment assembly is in sliding clamping with the trimming adjustment disc and the hoof-shaped support disc; The non-welding balance adjusting assembly comprises a reference limiting surface, a balance weight adjusting lock column and an annular calibration milling groove, wherein the reference limiting surface is integrally formed with the balance weight adjusting lock column, the annular calibration milling groove is equidistantly arranged to the periphery of the balance weight adjusting lock column, and the balance weight adjusting lock column sequentially penetrates through the balancing adjustment disc and the hoof-shaped support disc. Preferably, the reference limiting surface is located at the outer side of the trimming adjustment disc, and one end of the counterweight adjusting lock cylinder protrudes out of the trimming adjustment disc. Preferably, the trimming adjusting plate and the inner side of the hoof-shaped supporting plate are further provided with trimming thread locking pieces, and the trimming thread locking pieces sequentially penetrate through the trimming adjusting plate and the hoof-sha