CN208849562U

CN208849562U - Motor

Info

Publication number: CN208849562U
Application number: CN201821530534.5U
Authority: CN
Inventors: 张雪锋
Original assignee: Ningbo Rich Tek Motor Co Ltd
Current assignee: Ningbo Rich Tek Motor Co Ltd
Priority date: 2018-09-19
Filing date: 2018-09-19
Publication date: 2019-05-10
Anticipated expiration: 2028-09-19

Abstract

The utility model discloses a kind of motors, are related to controller switching equipment, and solving stator core in the prior art, it is excessive to have that uncontrollable magnitude of interference causes stator core to deform by being interference fitted the mode being installed in casing.Its key points of the technical solution are that including casing, stator module and rotor assembly, the stator module includes stator core, position limiting structure is provided between the stator core and casing, and the position limiting structure includes positioning groove, at the side of stator core fitting casing inner wall；Axially position protrusion, set on casing inner wall to abut stator core end face；And circumferentially positioned protrusion, set on casing inner wall to be caught in positioning groove.Reach by the way that clamping structure is arranged between stator core and casing, has solved the problems, such as that stator core installation inconvenience causes deformation, it is ensured that the purpose of accurate fitness between motor adjacent component.

Description

Motor

Technical field

The utility model relates to a kind of motors.

Background technique

Motor refer to according to the law of electromagnetic induction realize electric energy conversion or transmitting a kind of calutron, mainly by casing, Stator module and rotor assembly are constituted, wherein stator module is fixed in casing, rotor assembly be located in stator module with turn Shaft rotation in sub-component, and axis rotation around the shaft.

Currently, stator module is generally to be fixed and being interference fitted with casing, i.e., stator core in stator module Outer diameter is slightly larger than the internal diameter of casing, generates retentivity by interference fit, makes to be bonded between stator core and casing.

But there are certain manufacture fluctuations for the outer diameter of the internal diameter of casing and stator core, therefore when batch micro operations, magnitude of interference It can fluctuate in a certain range, it is ensured that then the stator core retentivity that casing is interference fitted therewith needs foot when magnitude of interference minimum It is enough, but can may also therefore cause retentivity when magnitude of interference maximum excessive, and then stator core is caused to deform excessive problem, Finally the fitness between motor adjacent component is impacted.

Utility model content

The purpose of the utility model is to provide a kind of motors to be taken by the way that clamping structure is arranged between stator core and casing In generation, by way of being interference fitted fixed stator iron core, solves the problems, such as that stator core installation inconvenience causes positional shift, it is ensured that Accurately fitness between motor adjacent component.

The above-mentioned technical purpose of the utility model has the technical scheme that a kind of motor, including machine Shell, stator module and rotor assembly, the stator module include stator core, are provided between the stator core and casing Position limiting structure, and the position limiting structure includes positioning groove, at the side of stator core fitting casing inner wall；Axially position Protrusion abuts an end face of stator core set on casing inner wall；And circumferentially positioned protrusion, it is fixed to be caught in set on casing inner wall In the groove of position.

It is in particular in by using above-mentioned technical proposal by position limiting structure: abutting stator using axially position protrusion The end face of iron core, to limit stator core in sliding axially in casing；Using it is circumferentially positioned protrusion and positioning groove cooperation, It is rotated to limit stator core and casing inner circumferential.Therefore the purpose of fixed stator iron core is realized, and to stator core and machine Fitness no requirement (NR) between shell, therefore in being pressed into stator core no pressure in casing, laborsaving installation stator core will not be to fixed The problem of causing deformation of sub- iron core, it is ensured that accurately fitness between motor adjacent component.

The utility model is further disposed in the axially position protrusion and circumferentially positioned protrusion are through formed punch by machine Shell outer wall is stamped to form to casing inner wall direction.

By using above-mentioned technical proposal, circumferentially positioned protrusion and axially position protrusion are by being stamped to form, so that casing Outer wall can form pit, conducive to observe it is circumferentially positioned protrusion and positioning groove between cooperation, and clear axially position protrusion with The conflict situation of stator core.

The utility model is further disposed in being equipped at the open end of Yu Suoshu casing and shaft in rotor assembly Connected reduction gearbox, the stator module include the first coil skeleton for abutting reduction gearbox, are had on the first coil skeleton Stator core end face is abutted with the flange with axially position male cooperation fixed stator iron core.

By using above-mentioned technical proposal, the end face of stator core is abutted using the flange of coil rack, avoids stator iron It is respectively provided with axially position protrusion at the both ends of core, influences stator core insertion casing.

Being further disposed in, the inner wall of the casing of the utility model at least has that there are three circumferentially distributed axial directions Positioning protrusion.

By using above-mentioned technical proposal, at least three axially positions protrusion, 3 points at face, it is ensured that the end face of stator core It is parallel to each other with the end face of casing, avoids stator core inclination installation, influence and the magnetic cooperation between rotor assembly.

The utility model is further disposed in being equipped at the open end of Yu Suoshu casing and shaft in rotor assembly Connected reduction gearbox, and the positioning convex ring being arranged for casing is provided on the cabinet of the reduction gearbox.

By using above-mentioned technical proposal, positioning convex ring is set, consequently facilitating quickly location and installation casing, and ensure casing The accurate fitness engaged between shaft and connecting shaft in interior insertion reduction gearbox.

The utility model is further disposed in the positioning convex ring has at least one fracture.

By using above-mentioned technical proposal, fracture is set, reduces the contact area between casing and positioning convex ring, thus When casing is installed, it is convenient for the appropriate deformation of casing, in favor of the cooperation between casing and positioning convex ring.

The utility model is further disposed in being equipped at the open end of the casing and shaft phase in rotor assembly Reduction gearbox even, on the cabinet of the reduction gearbox be provided in casing for the bearing built in the bearing that is installed in shaft Seat, and rubber ring is provided between the bearing block and bearing.

By using above-mentioned technical proposal, rubber ring is set, using the flexible characteristic of rubber ring, is avoided long in casing Time runs so that temperature increases and causes bearing chamber to swell or the problem of bearing's looseness.

The utility model is further disposed in the rubber ring includes the ring set section and fitting for being bonded bearing outer wall The disk cover section of bearing face, the disk cover section is at center with there are the deformations in gap with bearing block bottom surface.

By using above-mentioned technical proposal, deformations are set, are fluctuated convenient for deformations with temperature change in casing, thus Conducive to air pressure level in adjusting casing.

In conclusion the utility model has the following beneficial effects: abutting the end of stator core using axially position protrusion Face, to limit stator core in sliding axially in casing；Using the cooperation of circumferentially positioned protrusion and positioning groove, to limit Stator core and casing inner circumferential rotate.Therefore the purpose of fixed stator iron core is realized, and between stator core and casing Fitness no requirement (NR), therefore in being pressed into stator core no pressure in casing, laborsaving installation stator core will not be to stator core The problem of causing deformation, it is ensured that accurately fitness between motor adjacent component.

Detailed description of the invention

Fig. 1 is the schematic diagram of the utility model；

Fig. 2 is the exploded view of the utility model；

Fig. 3 is the cross-sectional view of the utility model；

Fig. 4 is the schematic diagram of casing in the utility model；

Fig. 5 is the enlarged drawing in Fig. 3 at A.

In figure, 1, casing；11, axially position protrusion；12, circumferentially positioned protrusion；2, stator module；21, stator core； 211, positioning groove；22a, first coil skeleton；22b, the second coil rack；221, flange；3, rotor assembly；31, shaft；4, Reduction gearbox；41, positioning convex ring；411, fracture；42, pressure ring；5, position limiting structure；61, bearing block；62, bearing；7, rubber ring；71, Ring set section；72, disk cover section；721, deformations；8, gasket.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

As depicted in figs. 1 and 2, a kind of motor, including casing 1, stator module 2, rotor assembly 3 and reduction gearbox 4, In, stator module 2 is fixedly mounted in casing 1, and is sheathed on outside rotor assembly 3；The connecting shaft and rotor assembly 3 of reduction gearbox 4 Shaft 31 generate linkage by two intermeshing transmission gears, the open end of the cabinet and casing 1 of reduction gearbox 4 passes through Bolt is connected.

In conjunction with shown in Fig. 3 and Fig. 4, there are four axially position protrusion 11 and one are circumferentially positioned convex for tool at the inner wall of casing 1 Rise 12, and circumferentially positioned raised 12 and axially position protrusion 11 through formed punch from 1 outer wall of casing to 1 inner wall direction punching press of casing and At.Wherein, four axially position protrusions 11 are uniformly distributed along the circumferential direction of casing 1, and circumferentially positioned raised 12 and any one axis It is shifted to install to positioning protrusion 11, i.e., the line between circumferentially positioned raised 12 and axially position protrusion 11 is not parallel to casing 1 axis.

Stator module 2 includes 21, stator winding of a stator core and two coil racks.Wherein, stator iron There is wire casing in core 21, offer a positioning groove 211, the length direction of positioning groove 211 at the outer wall of stator core 21 It is parallel to the axis of stator core 21, and the both ends of positioning groove 211 all extend to the endface of stator core 21；Two coils Skeleton be respectively arranged on stator core 21 both ends and wire casing it is mating, and respectively the second coil rack 22b and close to slow down The first coil skeleton 22a of case 4, the outer wall of two coil racks are extended with the flange 221 for abutting 21 end face of stator core；Line Circle is set around formation stator winding (not illustrating in figure) on coil rack.

When casing 1 and stator module 2 assemble, circumferentially positioned raised 12 are slid into the positioning groove 211 of stator core 21, are made It obtains circumferentially positioned raised 12 to be caught in positioning groove 211, to limit the rotation of stator core 21；Axially position protrusion 11 contradicts One end face of stator core 21, and the flange 221 of axially position protrusion 11 and first coil skeleton 22a cooperates to clamp admittedly Determine stator core 21, is loosened to limit stator core 21 along 1 axis direction of casing.Positioning groove 211, axially position protrusion 11 And axially position protrusion 11 cooperatively forms and limits the position limiting structure 5 that stator core 21 loosens between stator core 21 and casing 1.

A positioning convex ring 41 and a pressure ring 42 are provided on the cabinet of reduction gearbox 4.Wherein, positioning convex ring 41 is for casing 1 open end is arranged, consequently facilitating quickly location and installation casing 1, and ensure the shaft 31 in casing 1 in insertion reduction gearbox 4 with The accurate fitness engaged between connecting shaft, positioning convex ring 41 also have a fracture 411, reduce casing 1 and positioning convex ring 41 Between contact area be convenient for the appropriate deformation of casing 1 thus when installing casing 1, in favor of casing 1 and positioning convex ring 41 it Between cooperation；It is provided with gasket 8 between pressure ring 42 and one end of first coil skeleton 22a, so that first coil skeleton 22a It can be connected to indirectly on the cabinet of reduction gearbox 4, avoid the loosening of first coil skeleton 22a, and then avoid the pine of stator core 21 It is dynamic.

A bearing block 61 is additionally provided in the pressure ring 42 of 4 cabinet of reduction gearbox, and the endface of casing 1 is also equipped with one Bearing block 61, close to centre indent, bearing block 61 is disposed for the bearing 62 being sheathed on outside shaft 31 for the bottom surface of bearing block 61. It is provided with rubber ring 7 between bearing 62 and bearing block 61, avoids long-play in casing 1 that temperature is made to increase and lead to bearing The problem of Room 62 swell or bearing 62 loosens.

As shown in connection with fig. 5, rubber ring 7 includes connected ring set section 71 and disk cover section 72, wherein ring set section 71 is bonded bearing 61 inner wall of seat and the side wall of bearing 62, disk cover section 72 is bonded an end face of bearing 62, and part and the bottom surface of bearing block 61 are pasted Close, specifically in disk cover section 72 at center with 61 bottom surface indent of bearing block between there are gap, and disk cover section 72 this at For the deformations 721 that thickness reduces, consequently facilitating deformations 721 are fluctuated with temperature change in casing 1, to be conducive to adjusting machine Air pressure level in shell 1.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims

1. a kind of motor, including casing (1), stator module (2) and rotor assembly (3), the stator module (2) includes stator Iron core (21), it is characterised in that: be provided with position limiting structure (5) between the stator core (21) and casing (1), the limit knot Structure (5) includes positioning groove (211), is set at the side of stator core (21) fitting casing (1) inner wall；Axially position protrusion (11), casing (1) inner wall is set to abut an end face of stator core (21)；And circumferentially positioned raised (12), it is set to casing (1) inner wall is to be caught in positioning groove (211).

2. motor according to claim 1, it is characterised in that: the axially position raised (11) and circumferentially positioned protrusion (12) it is stamped to form through formed punch from casing (1) outer wall to casing (1) inner wall direction.

3. motor according to claim 1, it is characterised in that: be equipped at the open end of Yu Suoshu casing (1) and rotor The connected reduction gearbox (4) of shaft (31) in component (3), the stator module (2) include the first coil bone for abutting reduction gearbox (4) Frame (22a) has on the first coil skeleton (22a) and abuts stator core (21) end face to match with axially position raised (11) Close the flange (221) of fixed stator iron core (21).

4. motor according to claim 1, it is characterised in that: the inner wall of the casing (1) at least has there are three circumferentially The axially position of distribution is raised (11).

5. motor according to claim 1, it is characterised in that: be equipped at the open end of Yu Suoshu casing (1) and rotor The connected reduction gearbox (4) of shaft (31) in component (3), and be provided on the cabinet of the reduction gearbox (4) and be arranged for casing (1) Positioning convex ring (41).

6. motor according to claim 5, it is characterised in that: the positioning convex ring (41) has at least one fracture (411)。

7. motor according to claim 1, it is characterised in that: be equipped at the open end of Yu Suoshu casing (1) and rotor The connected reduction gearbox (4) of shaft (31) in component (3), on the cabinet of the reduction gearbox (4) be provided in casing (1) for peace It is provided with loaded on the bearing block (61) built in the bearing (62) on shaft (31), and between the bearing block (61) and bearing (62) Rubber ring (7).

8. motor according to claim 7, it is characterised in that: the rubber ring (7) includes fitting bearing (62) outer wall Ring set section (71) and the disk cover section (72) for being bonded bearing (62) end face, the disk cover section (72) has at center and bearing There are the deformations in gap (721) for seat (61) bottom surface.