Rolling type engagement motor in a kind of three-phase
Technical field
The utility model relates to rolling type engagement motor in a kind of three-phase, exactly, relate to a kind of magnetic field force produced between stator and rotor that utilizes, convert electrical energy into mechanical energy, and, by the gearing motor of inside meshing gear speed reducer structure output torque, belong to the technical field of driven by power equipment.
Background technology
In lightweight robotic joint driving mechanism in commercial Application, generally servomotor and harmonic speed reducer, consist of, volume is larger, and cost is higher.In recent years, Chinese scholars is carried out integrated research by reducing gear and motor, has all obtained good progress.For example, motor and harmonic wave speed reducing machine, the two combines, and makes output torque increase and physical dimension significantly reduces; The piezoelectricity cycloidal generator of the deceleration transmission principle of employing based on the gear engagement, it is the engagement by a pair of cycloid gear, the stretching motion of piezoelectric actuator is converted to the rotation of rotor, then relies on the actuating force of piezoelectric actuator output to promote the cycloidal generator rotation and output torque.The speed reducing ratio of piezoelectricity cycloidal generator is its rotor and the ratio of difference with the number of teeth of rotor of the stator number of teeth, and speed reducing ratio is very high.Simultaneously, because the friction loss of meshed transmission gear is little, transmission efficiency is high, so the piezoelectricity cycloidal generator compares with harmonic motor with relying on the frictional force output slow-speed of revolution between rotor, the ultrasonic wave of high pulling torque, and the former efficiency is high, longer service life.Simultaneously, due to the advantage of meshed transmission gear, the multiple low-speed high-torque motor that gear engagement is combined with dissimilar driver is successively succeeded in developing: face gear motor, electromagnetism cycloidal generator and the electromagnetism bevel gear motor etc. of the cycloidal generator driven by rubber deformation, the bevel gear motor that passes through air cylinder driven, dependence Driven by Hydraulic Cylinder.
To sum up, above-mentioned various motors mostly do not form integrated mechanism, and structure is still not compact: adopt the motor of cylinder and Driven by Hydraulic Cylinder, except needs driven by power equipment, also need extra compressed air or hydraulic pressure as power source.The motor that piezoelectricity or giant magnetostrictive material drive,, because of the effect stroke of its driver too short (being only micron order), be difficult to possess practical value.For meeting the actual demand of stator movement stroke, also to increase a set of lever, to increase its effect stroke.Yet, all decelerator and associated components thereof to be installed for the motor of driven at low speed and the larger occasion of load, so just increased member and the weight of drive unit, structure is too complicated, impracticable.
The utility model content
The purpose of this utility model is to provide rolling type engagement motor in a kind of three-phase, the rolling type gearing motor of the slow-speed of revolution using internal gear transmission mechanism as the deceleration output block, large torque, be a kind of simple in structure, compact and practical meshed transmission gear motor, be applicable to joint of robot etc. to the conditional occasion of installing space.
The utility model solves the technical scheme that its technical problem adopts, and in a kind of three-phase, rolling type engagement motor, be the large torque that motor and speed reducer is become one, slow-revving motor,
Described motor is arranged with three stators diametrically, rotor of three stator intermediate arrangement, and stator and rotor all consist of soft magnetic material; Rotor shapes is Trident Type, and there is semi-circular hole at center, and in hole, through a mandrel, the boss of mandrel shaft rear end and the back-up ring of front end are fixed rotor axial; Have groove on the rear end boss of mandrel, match with the bossing on a circular cross-shaped slide block, the bossing of crosshead shoe opposite side matches with the groove on slider bracket, and slider bracket connects firmly on the slide block bonnet by screw; Mandrel and rotor, under the constraint of crosshead shoe and slider bracket, can only be done plane motion diametrically, and can not do the autobiography motion; The front end of mandrel is packed in the endoporus of 1 rolling bearing, bearing outer ring is packed in the centre bore of external gear rear end, have 4 holes on external gear, pass fixing straight pin on an output shaft rear end face in each hole, both form hole pin constraint mechanism, and external gear can be made revolution motion and can not do rotation movement with respect to output shaft; Stator is semi-circular intermediate projections structure, and between every two stators, through a long cylinder pin, each pin is simultaneously through first circular hole of end face of ring gear, and the pin two ends are arranged in the blind hole on the motor front and rear cover; The stator intermediate projections partly is equipped with winding, and after winding powers up, rotor is subject to electromagnetic force and moves, and is with moving mandrel and external gear motion simultaneously; After three stator winding power up according to setting order and the sense of current, rotor will be made revolution motion under the constraint of crosshead shoe in sagittal plane, meanwhile, rotor drives external gear and is meshed with the ring gear connected firmly on casing, and external gear sells by hole the rotation that constraint mechanism drives output shaft output low speed, large torque.
Preferably, described stator is semi-circular Intermediate Gray bulge-structure, and annular two ends respectively have a semicircle groove, and winding is installed on intermediate projections, and after the winding energising, the electromagnetic force of generation drives rotor upwards motion in the motor footpath.
Preferably, described rotor is three pronged shape, silicon steel plate stacking, consists of, and rotor center is provided with semi-circular hole.
Preferably, described mandrel is semi-circular with the rotor section of cooperation radial section, is provided with boss near motor rear portion one end, and has straight trough on table top.
Preferably, described external gear axial rearward end Yi Ce center is porose, rolling bearing is installed in hole and with the mandrel front end, is coordinated the formation revolute pair to be connected.
Preferably, external tooth wheel shaft one end has cylinder boss, and cannelure is arranged on raised head face, for storing lubricating oil.
Preferably, the described casing outside is square, and inboard is circular through hole member, on inwall is axial, has 3 half slots to coordinate with 3 cylindrical pins.
Preferably, respectively there are 3 blind holes forward and backward end cap inboard, the cylindrical pins of packing in hole.
Preferably, the rear end of output shaft is dish-type, on 4 straight pins are set.
Preferably, the end face of ring gear upper rim is evenly equipped with 3 semicircle orifices, and the long cylinder of packing in hole pin, for radially fixing of ring gear.
In three-phase of the present utility model, rolling type engagement motor is provided with: the stator of motor, winding, rotor, ring gear and external gear, the translation constraint mechanism formed by mandrel, crosshead shoe, slider bracket and slide block bonnet, the hole pin mechanism formed by output shaft and external gear, and the end cap at casing, cylindrical pins and two ends; Wherein external gear is connected with mandrel by bearing, by rotor banding moving mandrel and external gear, meshes revolution motion and meshes with ring gear, and make external gear output spinning motion, and export spinning motion by hole pin mechanism drive output shaft,
Described motor is provided with footpath upwards symmetrical 3 stators, winding and 1 rotor, rotor center is fixedly mounted with a mandrel, the mandrel front end is packed in the brearing bore of inlaying on external gear, the other end is provided with boss, groove on boss matches with the projection on crosshead shoe, and in the groove that the projection of the crosshead shoe other end is packed on slider bracket, slider bracket is on the solid slide block bonnet of spiral shell, rotor can only be made revolution motion under the constraint of mandrel, crosshead shoe and slide block end cap, and can not rotation; After 3 stator coil windings are according to the setting sequence power on, just drive rotor to do revolution motion radially under the crosshead shoe constraint, meanwhile, rotor drives external gear and rotates together, the rotation of output low speed, large torque after external gear and ring gear engagement, utilize the hole pin mechanism between output shaft and external gear simultaneously, drive output shaft output and rotate.
Described motor is provided with 3 stators, and 3 stators are arranged symmetrically with, and the half slot at two ends is relative in twos, and the middle cylindrical pins of passing forms the radially fixing of stator, and axially projection and the shaft shoulder on rear end cap on upper dependence casing inner wall forms location.
Described motor is provided with a rotor, in the middle of rotor, semi-circular through hole is arranged, and is fixedly mounted with the mandrel of half circular cross section in hole, and mandrel one end is provided with boss, and the other end is installed the shaft block ring fixed rotor.
Described motor mandrel rear end boss is provided with groove, and groove matches with the projection on a crosshead shoe, and in the groove that the projection on the crosshead shoe other end is packed on slider bracket, slider bracket is fixed on the slide block bonnet; Mandrel, crosshead shoe, slider bracket and slide block bonnet form cross slides, make rotor to move radially and can not spinning motion; In the brearing bore of installing on the front loaded external gear of mandrel.
Described output shaft one end is fixedly mounted with in the dead eye on motor front end cover, be evenly equipped with 4 straight pins on this output shaft rear end card, be respectively charged in 4 holes on external gear, the semidiameter of hole and straight pin equals the revolution radius of external gear, making external gear rotatablely moving of self can be passed to output shaft can export, and output shaft can not limit the revolution motion of external gear.
Described casing is outside square inner circular through hole member, and its inwall is provided with 3 semi-circular recesses, and cylindrical pins is packed in groove.
Described end cap is the square tabular member corresponding with casing, and inboard has round boss to coordinate with casing inner wall, and centre is provided with the bearing pedestal through hole that is fixedly mounted with output shaft, and surrounding is uniformly distributed 3 blind holes, for being fixedly mounted with cylindrical pins.
Described cylindrical pins has 3, and respectively through the semi-circular hole on 3 stators and ring gear, the two ends of these cylindrical pins are packed in respectively in the blind hole on the end cap at casing two ends, and 3 cylindrical pins have been fixed stator and ring gear in Nei position, sagittal plane.
Described external gear one end is boss structure, and raised head face is provided with cannelure, and the other end is through hole, and inside is fixedly mounted with bearing.
Uniform 3 semicircle orifices of described ring gear surrounding, be fixedly mounted with respectively 3 straight pins to the ring gear radial location.
The utility model is the interior rolling type engagement of the three-phase of a kind of slow-speed of revolution, large torque motor, really motor and reductor is merged to one, but also has following innovation advantage:
Electric machine structure and simple, translation member only has 4, has greatly reduced inertia, has simplified mechanism, has reduced processing and assembly difficulty.
The accompanying drawing explanation
Fig. 1 is that the inside of rolling type engagement motor in the utility model three-phase forms structure chart;
Fig. 2,3,4 (A), (B) are respectively magnetic pole attracting mode and the reductor engaged transmission schematic diagrams of the utility model gearing motor;
Fig. 5 is the axial cutaway view of rolling type engagement motor in the utility model three-phase;
Fig. 6 (A), (B) are respectively front view and the axonometric drawings of the ring gear in the utility model gearing motor;
Fig. 7 (A), (B), (C) are respectively front view and the axonometric drawings of the external gear in the utility model gearing motor;
Fig. 8 (A), (B) are respectively stator front view and the axonometric drawings in the utility model gearing motor;
Fig. 9 (A), (B) are respectively rotor front view and the axonometric drawings in the utility model gearing motor;
Figure 10 (A), (B) are respectively output shaft front view and the axonometric drawings in the utility model gearing motor;
Figure 11 (A), (B) are respectively mandrel front view and the axonometric drawings of the utility model gearing motor;
Figure 12 (A), (B) are respectively crosshead shoe front view and the axonometric drawings of the utility model gearing motor;
Figure 13 (A), (B) are respectively slider bracket front view and the axonometric drawings of the utility model gearing motor;
Figure 14 (A), (B) are respectively slide block bonnet front view and the axonometric drawings of the utility model gearing motor;
Figure 15 (A), (B) are respectively front view and the axonometric drawings of the casing of the utility model gearing motor;
Figure 16 (A), (B) are respectively front view and the axonometric drawings of the front end housing of the utility model gearing motor;
Figure 17 (A), (B) are respectively front view and the axonometric drawings of the rear end cap of the utility model gearing motor.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is described in further detail.
Referring to Fig. 1~Figure 17, the structure of introducing rolling type engagement motor in the utility model three-phase forms: it is that motor and speed reducer is become one, and has certain self-locking, braking and can directly export the motor of the slow-speed of revolution, high pulling torque.In this three-phase, rolling type engagement motor, be the large torque that motor and speed reducer is become one, slow-revving motor,
Described motor is arranged with three stators diametrically, rotor of three stator intermediate arrangement, and stator and rotor all consist of soft magnetic material; Rotor shapes is Trident Type, and there is semi-circular hole at center, and in hole, through a mandrel, the boss of mandrel shaft rear end and the back-up ring of front end are fixed rotor axial; Have groove on the rear end boss of mandrel, match with the bossing on a circular cross-shaped slide block, the bossing of crosshead shoe opposite side matches with the groove on slider bracket, and slider bracket connects firmly on the slide block bonnet by screw; Mandrel and rotor, under the constraint of crosshead shoe and slider bracket, can only be done plane motion diametrically, and can not do the autobiography motion; The front end of mandrel is packed in the endoporus of 1 rolling bearing, bearing outer ring is packed in the centre bore of external gear rear end, have 4 holes on external gear, pass fixing straight pin on an output shaft rear end face in each hole, both form hole pin constraint mechanism, and external gear can be made revolution motion and can not do rotation movement with respect to output shaft; Stator is semi-circular intermediate projections structure, and between every two stators, through a long cylinder pin, each pin is simultaneously through first circular hole of end face of ring gear, and the pin two ends are arranged in the blind hole on the motor front and rear cover; The stator intermediate projections partly is equipped with winding, and after winding powers up, rotor is subject to electromagnetic force and moves, and is with moving mandrel and external gear motion simultaneously; After three stator winding power up according to setting order and the sense of current, rotor will be made revolution motion under the constraint of crosshead shoe in sagittal plane, meanwhile, rotor drives external gear and is meshed with the ring gear connected firmly on casing, and external gear sells by hole the rotation that constraint mechanism drives output shaft output low speed, large torque.
Preferably, described stator is semi-circular Intermediate Gray bulge-structure, and annular two ends respectively have a semicircle groove, and winding is installed on intermediate projections, and after the winding energising, the electromagnetic force of generation drives rotor upwards motion in the motor footpath.
Preferably, described rotor is three pronged shape, silicon steel plate stacking, consists of, and rotor center is provided with semi-circular hole.
Preferably, described mandrel is semi-circular with the rotor section of cooperation radial section, is provided with boss near motor rear portion one end, and has straight trough on table top.
Preferably, described external gear axial rearward end Yi Ce center is porose, rolling bearing is installed in hole and with the mandrel front end, is coordinated the formation revolute pair to be connected.
Preferably, external tooth wheel shaft one end has cylinder boss, and cannelure is arranged on raised head face, for storing lubricating oil.
Preferably, the described casing outside is square, and inboard is circular through hole member, on inwall is axial, has 3 half slots to coordinate with 3 cylindrical pins.
Preferably, respectively there are 3 blind holes forward and backward end cap inboard, the cylindrical pins of packing in hole.
Preferably, the rear end of output shaft is dish-type, on 4 straight pins are set.
Preferably, the end face of ring gear upper rim is evenly equipped with 3 semicircle orifices, and the long cylinder of packing in hole pin, for radially fixing of ring gear.
This motor is provided with: the stator 9 of motor, winding 8, rotor 1, the ring gear 7 of gear reduction unit, external gear 5 and output shaft 3, mandrel 12 forms the translation constraint mechanism with crosshead shoe 13 and slider bracket 14, and support section is casing 10, front end housing 6 and rear end cap 11.Wherein on external gear 5 borehole jack on the straight pin of output shaft 3 rear ends, by external gear 7 relatively with the revolution motion of ring gear 5, make external gear 5 drive output shafts 3 output low speed, the spinning motion of torque greatly; Three cylindrical pins 16 two ends through ring gear and first circular hole of stator all are packed in the hole on electric motor end cap 6,11; Output shaft 3 is installed in the bearing 4 at motor front end cover 6 centers, in 4 bearing pedestals that are arranged on end cap 6 of bearing.Stator winding 8 is according to after setting sequence power on, and its rotor 1 moves diametrically, does radially revolution motion under the constraint of crosshead shoe 13 with moving mandrel 12 simultaneously; Meanwhile, mandrel 12 drives external gear 5 and does together revolution motion and mesh with fixing ring gear 7, and the rotation that is driven output shafts 3 output low speed, large torque by external gear 5 is rotated; Simultaneously, in motion process, rotor 1 does not have spinning motion, only has revolution motion, and the magnetic pole strength of stator and rotor is parallel to each other all the time, and air gap changes evenly, has facilitated Electric Machine Control.
Referring to Fig. 1 and Fig. 2, the structure of introducing the electromagnetism winding in the utility model motor forms and operation principle:
The utility model motor is provided with three stators 9 (referring to Fig. 8) and a rotor 1 (referring to Fig. 9), and coil 8 is wound on the high spot at stator 9 middle parts.Three stators 9 symmetry in sagittal plane, 120 degree (referring to Fig. 2) that stagger, the powering order of control coil winding and the sense of current, drive rotor 1 diametrically → lower-left → bottom right → on the order loopy moving; Sub-circuit, just can realize rotor 1 and make revolution motion at the uniform velocity around electrical axis again.
The mandrel 12 of the utility model motor connects firmly by shaft block ring and rotor 1, the front end of mandrel 12 is packed in the endoporus of external gear 5 upper bearing (metal)s 4 simultaneously, when rotor 1 when doing revolution motion, to be with moving mandrel 12 and external gear 5 translational motion together, 5 of external gears produce gear motion with fixing ring gear 5 simultaneously, according to Principles of Gear Connection, external gear 5 also will be exported the spinning motion of low speed in revolution, and, on the straight pin of borehole jack on output shaft 3 of external gear 5 end faces, the spinning motion of external gear 5 is by output shaft 3 outputs.
Referring to each accompanying drawing, the structure that lower mask body is introduced each part of the utility model motor forms, its part comprises: the rotor 1 of motor, stator 9, winding 8, cycloid external gear 5 and ring gear 7, mandrel 12, shaft block ring 2, rolling bearing 4, output shaft 3, cylindrical pins 16, casing 10, end cap 6 and 11, crosshead shoe 13 and slider bracket 14, slide block bonnet 15 etc.
The rotor 1 of motor is three fork-shaped members (referring to Fig. 9), and centre is provided with semicircle orifice 1A, and the 12B sections in the middle of mandrel 12 are packed in semicircle orifice 1A and connected as one by shaft block ring 2 and rotor 1; On mandrel 12, the rear end boss is provided with groove 12C, the bossing 13A packed in groove 12C on crosshead shoe 13 end faces, the protruding 13B of crosshead shoe other end packs in the groove 14A of slider bracket 14, simultaneously, trip bolt screws in screwed hole 14B through the hole 15A on slide block bonnet 15, by slider bracket 14 with together with slide block bonnet 15 connects firmly; Screw in the screwed hole 11B on bonnet 11 through screw in hole 15B on the slide block bonnet, slide block bonnet and motor rear cover 11 are connected firmly; Under the crosshead shoe constraint formed at mandrel 12, crosshead shoe 14B, slider bracket 14 and slide block bonnet 15, this rotor 1 is done the revolution translation with respect to the electric machine main shaft axis in sagittal plane, and limit it, can not make spinning motion.
Ring gear 7 in the gear reduction of the utility model motor is thin-wall circular ring-type through hole member (referring to Fig. 6), its radial equipartition is provided with 3 semicircle orifice 7A, alignment pin fixed 16 is through the semicircle groove 10A on through hole 7A, casing 10 inwalls and the half slot 9A on stator 9, and two ends are fixed in blind hole 6A, the 11A on front end housing 6 and rear end cap 11 simultaneously; External gear 5 is also thin-wall circular shape through hole member (referring to Fig. 7), be provided with hole 5A on the gear wheel body, straight pin 3A on output shaft 3 rear ends penetrates in 5A, both semidiameters equal the revolution radius of external gear 5, during when external gear 5 revolution motions and with ring gear 7 engagement, the spinning motion of external gear 5 will pass to output shaft 3 by the pin constraint of the hole between straight pin 3A and 5A; External gear 5 front end cylinder boss planes are provided with cannelure 5B, so that storage lubricating oil, in the middle of rear end, be through hole 5C, for being fixedly mounted with bearing 4, pack in the bearing 4 inner rings 12A section of mandrel 12, when 12 motion of rotor 1 band moving mandrel, mandrel 12 will drive external gear 5 by bearing 4 and do together revolution motion, not retrain the spinning motion of external gear 5.The cycloid ring gear 7 of the utility model motor and external gear 5 form a tooth difference speed reducing mechanism, and its step-down ratio i is: i=-Z
o/ (Z
i-Z
o), in formula, Z
iand Z
.be respectively the number of teeth of involute ring gear 7 and external gear 5.Rotor 1 drives external gear 5 public affairs and circles, and tooth of autorotation only after its external gear 5 and ring gear 7 engagements, by this can be from the output shaft 3 output slow-speed of revolution and high pulling torques.
The utility model has carried out l-G simulation test, and every design parameter of this experimental prototype and the performance of realization are: the ring gear number of teeth: 65, and the external gear number of teeth: 64, gearratio: 64: 1, motor height 40mm, motor height 40mm, motor overall length 37.5mm, theoretical output torque can reach: 2Nm.Although experimental prototype still exists some to need improvements,, overall result of the test is successfully, has realized the utility model purpose.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in the scope of the utility model protection.