CN205693462U - Rotor punching - Google Patents

Abstract

The utility model discloses a kind of rotor punching, including yoke portion and be uniformly arranged on the edge, the yoke portion teeth groove along rotor punching radial direction, described E Bu center is provided with axis hole, described yoke portion is evenly arranged with through hole along axis hole periphery, described through hole is provided with the locating part downwardly extended along edge, and described locating part is inconsistent with through hole edge.Described through hole includes that long limit and broadside, described long limit and broadside junction are provided with arc limit, and described arc limit radius is 1.5mm.Described locating part is the banking stop downwardly extended along broadside, and described banking stop surface is inconsistent with through hole broadside, and limit long with through hole, described banking stop both sides of the edge is inconsistent, and described banking stop is vertical setting with surface, yoke portion.This utility model provides the locating part utilizing through hole to arrange and is capable of when rotor carries out closed assembly positioning fast and easy, installs a kind of rotor punching.

Description

Rotor punching

Technical field

This utility model relates to motor device field, particularly to a kind of rotor punching.

Background technology

Electronics is made up of rotor and stator two parts, and rotor is the rotary part in motor, it be used to realize electric energy with The conversion equipment of mechanical energy and mechanical energy and electric energy.Rotor iron core be compressed together by multi-disc rotor punching closed assembly Forming, connecting in the middle of rotor has rotating shaft, mechanical energy is exported by rotating shaft.

The patent document of China Patent Publication No. CN 203522367U discloses a kind of rotor punching, including punching body, It is uniformly provided with at least 4 composite permanent magnet grooves on described punching body, this composite permanent magnet is formed outer every magnetic magnetic bridge, described Being provided with the shaft hole of connection rotating shaft in the middle of punching body, this shaft hole is provided with keyway.Rotor punching in technique scheme The all consistent slabbing body of sheet, when closed assembly is pressed into one, it is difficult to be quickly carried out neat.

Utility model content

The purpose of this utility model is to provide the locating part utilizing through hole to arrange and is capable of rotor is being carried out closed assembly Shi Dingwei fast and easy, installs quick rotor punching.

Above-mentioned technical purpose of the present utility model has the technical scheme that a kind of rotor punching, bag Including yoke portion and be uniformly arranged on the edge, the yoke portion teeth groove along rotor punching radial direction, described E Bu center is provided with axis hole, described Yoke portion is evenly arranged with through hole along axis hole periphery, and described through hole is provided with the locating part downwardly extended along edge, described spacing Part is inconsistent with through hole edge.

By using technique scheme, it is possible to utilize the locating part that through hole edge downwardly extends, and then just can be to turning When son carries out closed assembly, make locating part and next layer of rotor punching edge inconsistent, make rotor punching rotating, and then The through hole that just can make upper and lower two rotor punchings carries out being directed at and realizes being accurately positioned, and utilizes the conflict effect of locating part, it is possible to First the through hole to upper and lower rotor punching carries out spacing movement, and then the tooth at edge, yoke portion and teeth groove realization just can be made the most right Position, so that the closed assembly process of rotor punching is convenient quickly.Further, since the restriction effect of locating part, rotor also can be made Ensure that adjacent rotor punching will not offset, and makes motor reach better performance when rotated.

This utility model is further arranged to: described through hole is rectangular opening, and described through hole radian along shaft circumference span is 30 °, between described adjacent through-holes center, angle is set to 50 °.

By using technique scheme, utilize through hole can reduce the quality of rotor punching, such that it is able to reduce rotor Rotary inertia when rotating, the rotation making rotor is more stable.Additionally, in motor rotary course, temperature of rotor can raise, Influence whether the static and dynamic equilibrium of rotor, and the static and dynamic equilibrium of rotor can directly influence bearing, caloric value, energy consumption conversion ratio Etc. index, so utilizing the through hole arranged on rotor can be aerated heat radiation when rotor rotates, make the temperature of rotor Reduce, thus ensure the performance of rotor.And utilize eight through holes being uniformly arranged at circumferencial direction, it is possible to reducing rotor matter While amount, moreover it is possible to reduce amount of unbalance when rotating.

This utility model is further arranged to: described through hole includes interconnective long limit and broadside, and described long limit is with wide Junction, limit is provided with arc limit, and described arc limit radius is 1.5mm.

By using technique scheme, it is possible to utilize Lai Jiangchang limit, arc limit to be attached with horizontal edge, and then can make to lead to The corner in hole becomes a curved surface, increases vias area to a certain extent, and the corner that it also avoid through hole exists Produce stress when rotor rotates to concentrate, such that it is able to the service life of Extending Rotor.

This utility model is further arranged to: described locating part is the banking stop downwardly extended along broadside, described banking stop Surface is inconsistent with through hole broadside, and limit long with through hole, described banking stop both sides of the edge is inconsistent, described banking stop and surface, yoke portion It is vertical setting.

By using technique scheme, it is possible to utilize the banking stop arranged under two broadsides, inconsistent with broadside, thus Rotor punching along the circumferential direction can be carried out a position-limiting action, when making upper and lower rotor punching closed assembly, will not rotate again. Meanwhile, by the conflict effect on banking stop edge and long limit, it is possible to limit rotor punching and be radially moved such that it is able to more Add and exactly it is carried out spacing and location, make each tooth at edge, yoke portion and teeth groove can carry out rapid alignment location.

This utility model is further arranged to: described axis hole edge is provided with the first keyway and with the center of circle for symmetrical centre Two keyways.

By using technique scheme, it is possible to increase the combination stability between rotating shaft and axis hole, utilize the first keyway And the conflict that second between keyway bottom surface, it is possible to make rotating shaft keep with axis hole in being coaxially disposed as far as possible, and the first keyway with Being symmetrical arranged of second keyway can make rotor punching symmetrical, reduces the rotor amount of unbalance when rotating.

This utility model is further arranged to: described first keyway includes the bottom surface being inclined to set and is connected to bottom surface The short side at two ends and long side surface, described short side and long side surface are all connected with axis hole edge-perpendicular away from one end, bottom surface.

By using technique scheme, utilize being obliquely installed of the first keyway bottom surface, and then just can make the area of bottom surface More than the base area of original flat key, both contacts area the most just can be increased when rotating shaft and rotor punching are combined, Thus increase frictional force mutual between rotating shaft and axis hole, utilize the integrated structure of wedge shape, it is possible to make rotating shaft and rotor shaft hatch Between produce bigger pretightning force, during work, frictionally transmission moment of torsion, and can bear unidirectional axial force, and both are the tightest Thickly coordinate, thus rotating shaft just can be made more stable in rotary course, it is to avoid between rotating shaft and axis hole, produce gap, energy Enough more successfully power is exported.Being obliquely installed of bottom surface can reduce the process that rotor carries out rotating in drive rotating shaft The squeezing action that the centrifugal force of middle generation causes for rotor, it is possible to centrifugal force is disperseed along the bottom surface tilted, thus Just can reduce the abrasion of rotor shaft hatch, enable rotor to have longer service life.

This utility model is further arranged to: described second keyway groove width is 7mm, the described second distance center of circle, keyway bottom surface Distance is 20.7mm.

By using technique scheme, it is stipulated that the size of the second keyway, this parameter is enable to match corresponding size Key, thus can successfully coordinate with rotating shaft.

This utility model is further arranged to: described teeth groove is provided with 42.

By using technique scheme, utilize the area of multiple teeth groove can embed more stator coil copper conductor, Be conducive to improving the stationarity being wound around coil, improve stability when motor runs, reduce the generation of noise.

In sum, this utility model has the advantages that

One: combine the setting of banking stop and rectangular through-hole, it is possible to making the surface of banking stop and broadside is that conflict is arranged Realizing spacing at circumferencial direction of rotor punching, utilizing the edge of banking stop and long limit is that conflict arranges and realizes rushing rotor Spacing radially of sheet, thus realize rotor punching can be convenient, quick when closed assembly；

Its two: the first keyway that combined axis bore edges is symmetrical set and the second keyway, it is possible to increase rotating shaft and axis hole it Between combination stability, utilize the conflict between the first keyway and the second keyway bottom surface, it is possible to make rotating shaft keep and axle as far as possible Hole is in being coaxially disposed, and the first keyway and being symmetrical arranged of the second keyway can make rotor punching symmetrical, reduces and turns The son amount of unbalance when rotating；

Its three: utilize and be uniformly arranged on the rectangular through-hole of axis hole outer periphery, it is possible to reduce the same of rotor quality playing Time rotor can be made again to dispel the heat in operation process, it is ensured that the behavior in service of motor.

Accompanying drawing explanation

Fig. 1 is the front view of the present embodiment；

Fig. 2 is the structural representation for embodying locating part；

Fig. 3 is the schematic diagram for embodying teeth groove；

Fig. 4 is the I portion enlarged drawing of Fig. 1.

Reference: 1, yoke portion；2, teeth groove；3, axis hole；4, the first keyway；41, bottom surface；42, short side；43, long side surface； 5, arcwall face；6, the second keyway；7, through hole；71, long limit；72, arc limit；73, broadside；8, slot opening；9, groove shoulder breadth；10, spacing Breach；11, teeth groove is long.

Detailed description of the invention

Below in conjunction with accompanying drawing, this utility model is described in further detail.

With reference to shown in Fig. 3, a kind of rotor punching, including yoke portion 1 be uniformly arranged on yoke portion 1 circumferential edges and rush along rotor Outward extending 42 teeth of sheet radial direction, form 42 teeth groove 2 for being wound around coil, in the both sides of tooth between adjacent two teeth Offering spacing breach 10, spacing breach 10 is positioned at the notch of teeth groove 2, and the slot opening 8 of teeth groove 2 is 2.0-2.1mm, is preferably 2mm, groove shoulder breadth 9 is 3.2mm, a length of 15.3mm of teeth groove 2.The external diameter of rotor punching is 109.3mm, the bottom distance circle of teeth groove 2 The heart is 78.58-78.7mm.

With reference to shown in Fig. 1-2, offering axis hole 3 in the center of rotor punching, the diameter design of axis hole 3 is 38- 38.025mm, axis hole 3 matches with required installation shaft diameter, is evenly distributed with 8 through holes 7 in the outside of axis hole 3 circumference, logical Hole 7 is shaped as rectangular opening, and rectangular opening includes two long limits 71 and two broadsides 73, and rectangular opening is near the length of side, axis hole 3 center Limit 71 is 25mm apart from center of circle radius, is 30mm away from the long limit 71 of side, axis hole 3 center apart from center of circle radius, two broadsides 73 Being attached with long limit 71 by arc limit 72, the subsequent corrosion on arc limit 72 is set between 1.5mm, and two broadsides 73 circumferentially The span in direction is 30 °, and the span between adjacent through-holes 7 center is 50 °.And along symmetrical two broadsides 73 and arc limit 72 Edge all downwardly extends out one piece of banking stop 12, and banking stop 12 is one piece of thin slice, when multiple rotor punchings carry out closed assembly, spacing The surface of sheet 12 is arranged in conflicting with the broadside 73 of next rotor punching, and the both sides of the edge of banking stop 12 and two long limits 71 The most all arrange in conflicting, and then play the effect of location when rotor punching closed assembly.

With reference to shown in Fig. 1 and Fig. 4, with the center of axis hole 3 as symmetrical centre, the edge of axis hole 3 offers the first key Groove 4 and the second keyway 6, the first keyway 4 includes short side 42, long side surface 43 and the bottom surface 41 being inclined to set, short side 42 with Long side surface 43 is all vertically connected at axis hole 3 edge, and the groove depth of short side 42 is set to 2.2mm, and the groove depth of long side surface 43 is set to 3mm, and the groove width of the first keyway 4 is 5-5.03mm, the design of this size makes between bottom surface 41 and the short side 42 of the first keyway 4 Form the angle of 99 °, and utilize arcwall face 5 to be connected between bottom surface 41 and long side surface 43, the curved surface of this arcwall face 5 A diameter of 1mm.The first keyway 4 bottom surface 41 being designed as being inclined to set can increase the contact area between rotating shaft and axis hole 3, So that surface both produces the biggest pretightning force, transmit moment of torsion mainly by frictional force during work, and unidirectional axle can be born Xiang Li.The groove width a size of 7mm of the second keyway 6, and the bottom surface 41 of the second keyway 6 and axis hole 3 centre distance 20.7mm.It is right to utilize Claim first, second keyway 6 arranged, it is possible to make rotating shaft try one's best with axis hole 3 in being coaxially disposed, and reduce rotor at rotation process In amount of unbalance.

This specific embodiment is only that it is not to restriction of the present utility model, ability to explanation of the present utility model The present embodiment can be made after reading this specification by field technique personnel as required does not has the amendment of creative contribution, but As long as all being protected by Patent Law in right of the present utility model.

Claims (8)

1. a rotor punching, including yoke portion (1) be uniformly arranged on yoke portion (1) edge teeth groove along rotor punching radial direction (2), described yoke portion (1) center is provided with axis hole (3), and described yoke portion (1) is evenly arranged with through hole (7) along axis hole (3) periphery, It is characterized in that: described through hole (7) is provided with the locating part downwardly extended along edge, described locating part is inconsistent with through hole (7) edge.

Rotor punching the most according to claim 1, is characterized in that: described through hole (7) is rectangular opening, described through hole (7) arc Degree is 30 ° along shaft circumference span, and between described adjacent through-holes (7) center, angle is set to 50 °.

Rotor punching the most according to claim 2, is characterized in that: described through hole (7) includes long limit (71) and broadside (73), Described long limit (71) and broadside (73) junction are provided with arc limit (72), and described arc limit (72) radius is 1.5mm.

Rotor punching the most according to claim 3, is characterized in that: described locating part is the limit downwardly extended along broadside (73) Bit slice (12), described banking stop (12) surface is inconsistent with through hole (7) broadside (73), and described banking stop (12) both sides of the edge are with logical Hole (7) long limit (71) is inconsistent, and described banking stop (12) is vertical setting with yoke portion (1) surface.

Rotor punching the most according to claim 1, is characterized in that: described axis hole (3) edge sets with the center of circle for symmetrical centre It is equipped with the first keyway (4) and the second keyway (6).

Rotor punching the most according to claim 5, is characterized in that: described first keyway (4) includes the end being inclined to set Face (41) and be connected to short side (42) and the long side surface (43) at bottom surface (41) two ends, described short side (42) and long side surface (43) all it is connected with axis hole (3) edge-perpendicular away from bottom surface (41) one end.

Rotor punching the most according to claim 5, is characterized in that: described second keyway (6) groove width is 7mm, described second The distance center of circle, keyway (6) bottom surface (41) distance is 20.7mm.

Rotor punching the most according to claim 1, is characterized in that: described teeth groove (2) is provided with 42.