CN208128012U - A kind of rotor structure reducing rotor unbalance value - Google Patents

Abstract

The utility model discloses a kind of rotor structure for reducing rotor unbalance value, including a rotor assembly, the rotor assembly include the rotor core being assembled together and shaft；The outer circle region of the rotor core offers several magnetic slots, and the inner circle region of the rotor core offers the first keyway；The outer circle region correspondence of the shaft offers the second keyway；In the assembled condition, shaft is plugged in rotor core, and is plugged in each rotor simultaneously by a flat key and is rushed in the first keyway of section and the second keyway of shaft, to realize being fixedly connected for rotor and shaft；Rotor assembly after assembly has a center of gravity, the center of gravity axially extends to form a center of gravity line, one, which is offered, on the inner circle region of the rotor removes Baking soda, the flute length direction for removing Baking soda axially extends, the groove depth direction for removing Baking soda extends along the radial line direction to intersect vertically with the center of gravity line, and the symmetrical center line for going to any one cross section of Baking soda intersects vertically with the center of gravity line.

Description

A kind of rotor structure reducing rotor unbalance value

Technical field

The utility model belongs to motor field, and in particular to a kind of electric machine structure more particularly to a kind of reduction rotor are uneven The rotor structure of measurement.

Background technique

Currently, in industrial motor or even new-energy automobile driving motor industry, the vibration of motor is required it is higher and higher, Requirement accordingly to rotor amount of unbalance is also higher and higher.In Automobile drive motor, the grade of rotor dynamic balancing It has had been increased to not less than G1 grades.Therefore reduce rotor initial unbalance, reduce even save it is subsequent compared with balancing processing at A kind of urgent demand.

In the prior art, in order to realize the connection of rotor and shaft, it usually needs open up keyway on rotor, and keyway The balance that necessarily will affect rotor is opened up, in order to reduce rotor initial unbalance, mostly by adding on rotor or so pressing plate Galassing weighing apparatus or duplicate removal balance to adjust the amount of unbalance of rotor.It is using the shortcomings that hamming：By manually increasing balance The counterweights such as clay or aluminium block adjust amount of unbalance, and there are low efficiency and there are counterweights easily to fall to rotor and stator Between air gap in, generate abnormal sound, even result in the stuck risk of motor.And the shortcomings that using duplicate removal balance, is：Due to rotor Initial unbalance, is larger, and the material for needing to remove is more, leads to the efficiency decline of processing, the increased costs of processing.

It is the project to be studied of the utility model in consideration of it, proposing a kind of rotor structure for reducing rotor unbalance value.

Summary of the invention

The utility model provides a kind of rotor structure for reducing rotor unbalance value, and its purpose is to solve the prior art Using hamming, there are low efficiency, counterweights to be easy to fall to the problems in the air gap between stator and rotor, and uses and go Galassing weighing apparatus has that processing efficiency decline, processing cost increase.

In order to achieve the above objectives, the technical solution adopted in the utility model is：A kind of rotor reducing rotor unbalance value Structure, including a rotor assembly, the rotor assembly include the rotor core being assembled together and shaft；Outside the rotor core Circle region offers several magnetic slots, magnet steel is equipped in the magnetic slot, the inner circle region of the rotor core offers first Keyway；The outer circle region correspondence of the shaft offers the second keyway；In the assembled condition, the shaft is plugged in rotor core In, and each rotor is plugged in simultaneously by a flat key and is rushed in the first keyway of section and the second keyway of shaft, to realize rotor Iron core is fixedly connected with shaft；

Rotor assembly after assembly has a center of gravity, which axially extends to form a center of gravity line, the rotor core Inner circle region on offer one and remove Baking soda, the flute length direction for removing Baking soda axially extends, the groove depth side for removing Baking soda Extend to along the radial line direction that intersects vertically with the center of gravity line, and the symmetrical center line for going to any one cross section of Baking soda with The center of gravity line intersects vertically.

Related content in above-mentioned technical proposal is explained as follows：

1, in above scheme, the rotor core includes that several rotors rush section, and each rotor rushes section by several rotor punchings It is formed after laminating by rivet.

2, in above scheme, on the rotor punching, along the circumferential direction it is equipped with the rivet hole that several groups are evenly spaced on Head bore is hidden with rivet, every group of rivet hole and rivet hiding head bore are one in front and one in back arranged along the radial direction of rotor punching, and every two adjacent groups In rivet hole and rivet hiding head bore, rivet hole and rivet hiding head bore are interspersed.

3, in above scheme, the rotor assembly further includes the first rotor pressing plate, the second rotor press plate and rotor pressing sleeve, The rotor pressing sleeve is pressed on rotor core, and is fixed on rotor core both ends by the first rotor pressing plate, the second rotor press plate.

Working principle：The utility model removes Baking soda by opening up on rotor core the amount of unbalance of adjustment rotor, comes The center of gravity of rotor in the axial direction is set to fall in the center point of rotor, to realize dynamic balancing.

Since above-mentioned technical proposal is used, the utility model has following advantages compared with prior art：

The utility model is simple and reliable for structure, reduces the initial unbalance, of rotor, can save duplicate removal balancing processing, Save labour cost and time.

Detailed description of the invention

Attached drawing 1 is the schematic diagram of rotor punching in the present embodiment；

Attached drawing 2 is rotor core in the present embodiment and the cross-sectional view after shaft assembly；

Attached drawing 3 is the perspective view one of rotor structure in the present embodiment；

Attached drawing 4 is the perspective view two of rotor structure in the present embodiment；

Attached drawing 5 is the perspective view of one section of rotor core in the present embodiment；

Attached drawing 6 is the center of circle, center of gravity subpoint and to remove position view between Baking soda in the present embodiment.

In the figures above：1, rotor core；10, rotor punching；11, center of gravity subpoint；12, equalization point；101, the first key Slot；102, Baking soda is removed；103, rivet hole；104, rivet hides head bore；2, rotor rushes section；3, rivet；4, flat key；5, magnet steel；6, turn Axis；7, the first rotor pressing plate；8, the second rotor press plate；9, rotor pressing sleeve.

Specific embodiment

The utility model is further described with reference to the accompanying drawings and embodiments：

Embodiment：A kind of rotor structure reducing rotor unbalance value

Referring to attached drawing 1-5, including a rotor assembly, the rotor assembly include the rotor core 1 being assembled together, shaft 6, The first rotor pressing plate 7, the second rotor press plate 8 and rotor pressing sleeve 9.

The rotor core 1 includes rotor core, which includes that several rotors rush section 2, each rotor rush section 2 by Several rotor punchings 10 are riveted after laminating by rivet 3, and the outer circle region of the rotor core offers several magnet steel Slot, magnetic slot are provided with magnet steel 5.The inner circle region of the rotor core offers the first keyway 101；The outer circle of the shaft 6 Region correspondence offers the second keyway.In the present embodiment, on the rotor punching 10, along the circumferential direction be equipped with several groups it is uniform between Head bore 104, every group of rivet hole 103 and rivet hiding head bore 104 are hidden along the diameter of rotor punching 10 every the rivet hole 103 and rivet of distribution To one in front and one in back arranging, and in every two adjacent groups rivet hole 103 and rivet hiding head bore 104, rivet hole 103 and rivet hide head bore 104 are interspersed, and rivet 3 is through in rivet hole 103, and rush the positive replicate of section 2 by rotor and manufactured head outstanding is ensconced riveting In nail hiding head bore 104, it is riveted together to form rotor and rush section 2 so that neat rotor punching 10 will be laminated.

In the assembled condition, the shaft 6 is plugged in is rushed in the rotor core 1 that section 2 is constituted by several rotors, and passes through one Flat key 4 is plugged in each rotor simultaneously and rushes in the first keyway 101 of section 2 and the second keyway of shaft 6, to realize rotor core 1 With being fixedly connected for shaft 6.The rotor pressing sleeve 9 is pressed on rotor core 1, and by the first rotor pressing plate 7 and second turn Sub- pressing plate 8 is fixed on 1 both ends of rotor core.

Rotor assembly after assembly has a center of gravity, which axially extends to form a center of gravity line, the rotor core Inner circle region on offer one and remove Baking soda 102, the flute length direction for removing Baking soda 102 axially extends, described to remove Baking soda 102 Groove depth direction extend along the radial line direction that intersects vertically with the center of gravity line, and any one cross section of Baking soda 102 of going Symmetrical center line intersects vertically with the center of gravity line.

Referring to attached drawing 6, in the present embodiment the center of circle, center of gravity subpoint 11 and remove position view between Baking soda 102, be Center of gravity is further explicitly described and goes the positional relationship of Baking soda 102, it is assumed that ignores the thickness of rotor punching 10, rotor assembly Center of gravity form a center of gravity subpoint 11 on each rotor punching 10 along axis projection, each rotor punching 10 is thrown by center of gravity The radial line of shadow point 11 and the inner circle of respective rotor punching 10 intersect at an equalization point 12, at this point, due to 1 inner circle region of rotor core Baking soda 102 is offered, so having a notch on each rotor punching 10, the central point of the notch is overlapped with equalization point 12, And notch itself is relatively corresponding linearly symmetrical by the radial line of center of gravity subpoint 11 in the width direction.Section 2 is rushed in each rotor In, the shape and size of the notch on all rotor punchings 10 are all the same, the jagged center along arbitrary cross section line Point-blank along axial direction, after all rotor punchings 10 that rotor rushes section 2 laminate, just in the notch of all rotor punchings 10 Place forms Baking soda 102.

The utility model removes Baking soda 102 by opening up on rotor core 1 amount of unbalance of adjustment rotor, i.e., in rotor Notch is opened up in punching 1, the center of gravity of rotor in the axial direction is finally made to fall in the center point of rotor, to realize dynamic balancing.

The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique Personage can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention. All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover the protection scope of the utility model it It is interior.

Claims (4)

1. a kind of rotor structure for reducing rotor unbalance value, including a rotor assembly, which includes being assembled together Rotor core（1）And shaft（6）；The rotor core（1）Outer circle region offer several magnetic slots, peace in the magnetic slot Equipped with magnet steel（5）, the rotor core（1）Inner circle region offer the first keyway（101）；The shaft（6）Outer circle area Domain correspondence offers the second keyway；In the assembled condition, the shaft（6）It is plugged in rotor core（1）In, and pass through a flat key （4）Being plugged in each rotor rushes section simultaneously（2）The first keyway（101）And shaft（6）The second keyway in, to realize rotor iron Core（1）And shaft（6）Be fixedly connected；

It is characterized in that：Rotor assembly after assembly has a center of gravity, which axially extends to form a center of gravity line, and described turn Sub- iron core（1）Inner circle region on offer one and remove Baking soda（102）, described to remove Baking soda（102）Flute length direction axially extend, It is described to remove Baking soda（102）Groove depth direction extend along the radial line direction that intersects vertically with the center of gravity line, and described remove Baking soda （102）The symmetrical center line of any one cross section intersects vertically with the center of gravity line.

2. the rotor structure according to claim 1 for reducing rotor unbalance value, it is characterised in that：The rotor core （1）Section is rushed including several rotors（2）, each rotor rushes section（2）By several rotor punchings（10）Pass through rivet after laminating（3）Riveting It forms.

3. the rotor structure according to claim 2 for reducing rotor unbalance value, it is characterised in that：The rotor punching （10）On, along the circumferential direction it is equipped with the rivet hole that several groups are evenly spaced on（103）Head bore is hidden with rivet（104）, every group of riveting Nail hole（103）Head bore is hidden with rivet（104）Along rotor punching（10）Radial direction one in front and one in back arrange, and every two adjacent groups rivet hole （103）Head bore is hidden with rivet（104）In, rivet hole（103）Head bore is hidden with rivet（104）It is interspersed.

4. the rotor structure according to claim 1 for reducing rotor unbalance value, it is characterised in that：The rotor assembly is also Including the first rotor pressing plate（7）, the second rotor press plate（8）And rotor pressing sleeve（9）, the rotor pressing sleeve（9）It is pressed in rotor iron Core（1）On, and by the first rotor pressing plate（7）With the second rotor press plate（8）It is fixed on rotor core（1）Both ends.