CN207234583U - If the motor of shaft bearing anti-skid structure - Google Patents

Abstract

It the utility model is related to motor.A kind of motor for setting shaft bearing anti-skid structure, including motor casing, stator, rotor and motor shaft, the both ends of motor casing are respectively connected with an end cap, the both ends of motor shaft are installed in end cap by bearing, bearing includes bearing inner race and the bearing outer ring being rotatably connected on outside bearing inner race, bearing inner race is set on motor shaft, bearing outer ring is tightly fixed in end cap, the end face of the one end of motor shaft away from rotor is equipped with along the axially extending operation hole of motor shaft, it is equipped with operation hole some along the circumferentially distributed anti-avulsion pin radially extended of motor shaft, operation hole internal thread is connected with drive rod, drive rod is equipped with driving anti-avulsion pin and holds out against the conical surface section on the inner peripheral surface of the inner ring of bearing.The utility model has the advantages that not allowing to be also easy to produce between bearing and motor shaft rotationally and axially to move, and solves the problems, such as easily to produce between motor shaft and bearing and skids and cause motor shaft wear damage and easily produce axial movement.

Description

If the motor of shaft bearing anti-skid structure

Technical field

Motor is the utility model is related to, more particularly to a kind of motor for setting shaft bearing anti-skid structure.

Background technology

Motor（English：Electric machinery, are commonly called as " motor "）Refer to realize electric energy according to the law of electromagnetic induction Conversion or a kind of calutron transmitted.Letter M is used in circuit（Old plant D）Represent.Its main function is to produce drive Dynamic torque, as electrical appliance or various mechanical power sources.Generator is represented with letter G in circuit.Its main function is Mechanical energy is converted into using electric energy.It is CN201410839211.4, Publication No. CN104505989A, name in China Patent No. A kind of existing motor is disclosed referred to as in the patent document of " CN104505989A ", the basic structure of motor includes motor Shell, the stator being fixed in motor casing and the rotor being rotationally threaded through in stator, rotor are connected with motor shaft, motor casing Both ends are respectively connected with an end cap, and the both ends of motor shaft are installed in the end cap by bearing.There are following for existing motor Deficiency：Easily produced between motor shaft and bearing and skid and cause motor shaft wear damage；There is no axial limiting, easily produce axis To movement.

Utility model content

The utility model provide do not allow to be also easy to produce between a kind of bearing and motor shaft rotationally and axially move set shaft The motor of bearing anti-skid structure, solves easily to produce between motor shaft and bearing and skids and cause motor shaft wear damage and appearance The problem of being also easy to produce axial movement.

Above technical problem is solved by following technical proposal：A kind of motor for setting shaft bearing anti-skid structure, bag Motor casing, the stator being fixed in motor casing and the rotor being rotationally threaded through in stator are included, the rotor is connected with motor Axis, the both ends of the motor casing are respectively connected with an end cap, and the both ends of the motor shaft are installed in the end cap by bearing, It is characterized in that, the bearing includes bearing inner race and the bearing outer ring being rotatably connected on outside bearing inner race, the bearing inner race Be set on the motor shaft, the bearing outer ring is tightly fixed in the end cap, the motor shaft away from rotor one The end face at end is equipped with along the axially extending operation hole of motor shaft, is equipped with the operation hole some along the circumferentially distributed footpath of motor shaft To the anti-avulsion pin of extension, operation hole internal thread is connected with drive rod, and the drive rod, which is equipped with, drives the anti-avulsion pin to hold out against Conical surface section on the inner peripheral surface of the inner ring of the bearing.Set the anti-avulsion crown tightly on the inner peripheral surface of bearing inner race, so as to rise I.e. skidding and the effect moved axially are rotated to preventing from producing between bearing and motor shaft.When needing the anti-avulsion crown tight, rotate and drive Lever causes drive rod to enter the depth increase in operation hole, and conical surface section holds out against anti-avulsion pin on bearing inner race.It is on the contrary then anti- Direction rotation of drive rod.

Preferably, the anti-avulsion pin is the same as being cone match between the conical surface section.Not easily leaded to when driving anti-avulsion pin Conical surface segment table surface wear.

Preferably, the inner peripheral surface of the bearing inner race is equipped with location dimples, the anti-avulsion pin abuts correspondingly In the location dimples.Better reliability.

Preferably, the motor shaft is equipped with the positioning retainer ring with bearing inner race abutting together, the bearing When inner ring is abutted together with the positioning retainer ring, the location dimples and anti-avulsion pins position are in same perpendicular to the motor shaft In the plane of axis.Convenience when anti-avulsion pin and drop-proof hole alignment can be improved.

Preferably, the motor shaft is equipped with along the axially extending locating slot of motor shaft, the inner peripheral surface of the bearing inner race It is equipped with along the axially extending positioning convex strip of bearing inner race, when the positioning convex strip is plugged in the locating slot, the positioning Pit and anti-avulsion pin are located in the plane of the same axis by the motor shaft correspondingly.Anti-avulsion pin can be improved and stopped Convenience during de- hole alignment.

The utility model tool has the advantage that：Do not allow to be also easy to produce between motor shaft and bearing rotationally and axially to move, can Effectively prevent motor shaft from wearing；Shaft is not allowed to be also easy to produce axial movement.

Brief description of the drawings

Fig. 1 is the schematic diagram of the utility model embodiment one.

Fig. 2 is the schematic diagram of the utility model embodiment two.

Fig. 3 is the axial schematic diagram of two middle (center) bearing of embodiment and motor shaft.

In figure：Rotor 1, stator 2, motor casing 3, end cap 31, motor shaft 4, conical surface section 41, operation hole 42, anti-avulsion pin 43, drive Lever 44, positioning retainer ring 45, locating slot 46, bearing 5, bearing inner race 51, location dimples 511, positioning convex strip 512, bearing outer ring 52nd, bearing ball 53,.

Embodiment

The utility model is further described with embodiment below in conjunction with the accompanying drawings.

Embodiment one, referring to Fig. 1, a kind of motor for setting shaft bearing anti-skid structure, including rotor 1, stator 2, motor casing 3 With motor shaft 4.Rotor 1 is arranged and provides on the motor shaft (4).Rotor 1 is stretched out at the both ends of motor shaft 4.Stator 2 is fixed in motor casing In 3.The both ends of motor casing 3 are respectively connected with an end cap 31.Bearing 5 is installed in end cap 31.Bearing 5 include bearing inner race 51, Bearing outer ring 52 and bearing ball 53.Bearing outer ring 52 is rotatably connected on outside bearing inner race 51 by bearing ball 53.Outside bearing Circle 52 is tightly fixed in end cap 31.Bearing inner race 51 is tightly fixed on the motor shaft (4).

The end face of the one end of motor shaft 4 away from rotor is equipped with along the axially extending operation hole 42 of motor shaft.In operation hole 42 It is equipped with some anti-avulsion pins 43 circumferentially distributed along motor shaft.Anti-avulsion pin 43 is radially extended along motor shaft.Spiral shell in operation hole 42 Line is connected with drive rod 44.Drive rod 44 is equipped with conical surface section 41 towards one end of rotor.Anti-avulsion pin 43 is matched somebody with somebody with 41 conical surface of conical surface section Close and abut together.It is clearance fit between anti-avulsion pin 43 and motor shaft 4.

When anti-avulsion pin to be unclamped is when holding out against effect, rotation of drive rod causes the ejection that conical surface section is lost to anti-avulsion pin to make With due to non-clearance fit, anti-avulsion pin can be by being reduced in motor shaft 4 without interfering bearing outer ring and motor shaft 4 in gravity Between separation.Need to prevent from producing between motor shaft and bearing inner race when rotationally and axially moving, rotation of drive rod to bore Face section is by the anti-avulsion crown tightly on bearing inner race inner peripheral surface.

Embodiment two, the difference with embodiment one are：

Referring to Fig. 2, the inner peripheral surface of bearing inner race 51 is equipped with some location dimples 511.Motor shaft 4 is equipped with positioning retainer ring 45.When bearing inner race 51 is abutted together with positioning retainer ring 45, location dimples 511 and anti-avulsion pin 43 are positioned at same perpendicular to motor I.e. along the circumferentially aligned of motor shaft in the plane of the axis of axis 4.

Referring to Fig. 3, motor shaft 4 is equipped with along the axially extending locating slot 46 of motor shaft.Set on the inner peripheral surface of bearing inner race 51 Have along the axially extending positioning convex strip 512 of bearing inner race.When positioning convex strip 512 is plugged in locating slot 46, location dimples and only Out of stock is correspondingly axially aligning along motor shaft in the same plane by the axis of motor shaft.

Referring to Fig. 2 and Fig. 3, when assembling bearing, the mode that positioning convex strip 512 is plugged in locating slot 464 is set to position recessed 511 sets of hole is set on motor shaft 4 until that can not be inserted into（I.e. bearing inner race 51 abuts together with positioning retainer ring 45）When untill. Anti-avulsion head and location dimples 511 are correspondingly along motor shaft radially aligned at this time, on anti-avulsion pin can insert correspondingly Enter in location dimples.

Claims (5)

1. a kind of motor for setting shaft bearing anti-skid structure, including motor casing, the stator that is fixed in motor casing and rotationally The rotor being threaded through in stator, the rotor are connected with motor shaft, and the both ends of the motor casing are respectively connected with an end cap, described The both ends of motor shaft are installed in the end cap by bearing, it is characterised in that the bearing includes bearing inner race and the company of rotation The bearing outer ring being connected on outside bearing inner race, the bearing inner race are set on the motor shaft, and the bearing outer ring tight fit is consolidated It is scheduled in the end cap, the end face of the one end of the motor shaft away from rotor is equipped with along the axially extending operation hole of motor shaft, institute State to be equipped with operation hole and some be connected with drive along the circumferentially distributed anti-avulsion pin radially extended of motor shaft, operation hole internal thread Lever, the drive rod, which is equipped with, drives the anti-avulsion pin to hold out against the conical surface section on the inner peripheral surface of the inner ring of the bearing.

2. the motor according to claim 1 for setting shaft bearing anti-skid structure, it is characterised in that the anti-avulsion pin is the same as described It is cone match between conical surface section.

3. the motor according to claim 1 for setting shaft bearing anti-skid structure, it is characterised in that the bearing inner race it is interior Side face is equipped with location dimples, and the anti-avulsion pin is connected in the location dimples correspondingly.

4. the motor according to claim 3 for setting shaft bearing anti-skid structure, it is characterised in that the motor shaft is equipped with With the positioning retainer ring of bearing inner race abutting together, when the bearing inner race is abutted together with the positioning retainer ring, institute Location dimples and anti-avulsion pins position are stated in the plane of the same axis perpendicular to the motor shaft.

5. the motor according to claim 3 for setting shaft bearing anti-skid structure, it is characterised in that the motor shaft is equipped with edge The axially extending locating slot of motor shaft, the inner peripheral surface of the bearing inner race are equipped with along the axially extending convex of bearing inner race Bar, when the positioning convex strip is plugged in the locating slot, the location dimples and anti-avulsion pin be located at correspondingly with once Cross in the plane of the axis of the motor shaft.