CN104753246A

CN104753246A - Idle resistance-free motor

Info

Publication number: CN104753246A
Application number: CN201310747665.4A
Authority: CN
Inventors: 申国印; 张大宝; 贾学思
Original assignee: HENAN CHAOWEI ELECTRIC AUTOMOBILE CO Ltd
Current assignee: HENAN CHAOWEI ELECTRIC AUTOMOBILE CO Ltd
Priority date: 2013-12-31
Filing date: 2013-12-31
Publication date: 2015-07-01

Abstract

An idle resistance-free motor can be used for various vehicles, especially for electric bicycles. Electromagnetic resistance is not produced when the motor is out of power, a drive gear does not rotate when wheels forwards advance by relying on inertia, a stator magnet and a rotor armature are idle, no acting force is produced between the stator magnet and the rotor armature, and the electromagnetic resistance to wheel advancing when the motor is out of power is avoided.

Description

Dally without hindrance motor

Technical field

The present invention relates to a kind of without hindrance motor of idle running that can be used for various vehicle.

Technical background

Existing DC hub motor adopts the structure of common gravity flow motor, its armature rotor is inlaid on the shell of motor, magnets of stator is fixed on machine shaft, be installed to after on vehicle, this machine shaft is fixedly connected with the wheel shaft of wheel, shell is fixedly connected with wheel hub, in the energized state, shell rotates relative to machine shaft, drive vehicle wheel rotation, the defect of this electric machine is when motor no power, shell together with rotor magnet equally also with vehicle wheel rotation, rotor magnet relative stator armature is caused to rotate, produce very large electromagnetic resistance, thereby increase manpower consumption, reduce road speed when manpower drives, decrease sliding speed and coasting distance.

Summary of the invention

For overcoming the above-mentioned defect of prior art, the invention provides one without magnetic resistance DC hub motor, this device does not produce electromagnetic resistance when motor power-off, does not affect driving when manpower drives or slides.

The technical scheme that the present invention realizes above-mentioned purpose is: the without hindrance motor of a kind of idle running, comprise shell, magnets of stator, machine shaft and armature rotor, described machine shaft is socketed in the left side laying respectively at two ends, shell left and right, on right bearing, be rotatably assorted with described shell, described each magnets of stator is distributed between armature rotor and side wall of outer shell, its left end is fixedly connected on machine shaft by stator support, described armature rotor is positioned at shell, be enclosed within machine shaft fool, and be rotatably assorted with machine shaft by rotor bearing, its right-hand member is fixedly connected with the travelling gear with machine shaft matched in clearance, the right-hand member of described shell is the right end cap be fixedly connected with housing body portion, gear ring is fixedly connected with inside the ring-like lateral edges of right end cap, described gear ring is provided with internal tooth, some planetary gears are evenly distributed with in gear ring, described planetary gear is provided with external tooth, and engage with the gear ring be positioned at outside it and the travelling gear being positioned at its inboard respectively, the unidirectional flywheel that can rotate clockwise is provided with (by left apparent direction in shell on the right side of each planetary gear, lower same), the standing part of described unidirectional flywheel is fixedly sleeved on machine shaft, outside rotating part cover standing part, coordinate with standing part one-directional rotation, described each planetary axle base is arranged on the rotating part of unidirectional flywheel, be rotatably assorted with unidirectional flywheel rotating part.

Operation principle of the present invention and beneficial effect are: machine shaft of the present invention is coaxial with the wheel shaft of vehicle, shell is fixed together with wheel hub, during energising, electromagnetic force is produced between magnets of stator and armature rotor, because magnets of stator is motionless, the related travelling gear of armature rotor is rotated counterclockwise under the effect of electromagnetic force, during travelling gear transmission, because unidirectional flywheel rotating part cannot rotate counterclockwise, therefore planetary gear turns clockwise under the driving of travelling gear, and then drive gear ring and shell to turn clockwise, drive wheel to advance forward thus; When motor no power, wheel relies on inertia or advances forward under manpower drives, shell is made to continue to rotate clockwise with wheel, each planetary gear revolves round the sun with the synchronous pin of shell under the drive of gear ring, and drives the rotating part of unidirectional flywheel to rotate clockwise, and planetary gear carries out rotation while revolution, that travelling gear does not rotate, therefore magnets of stator and armature rotor all transfixions, do not have active force each other, and avoiding motor is the electromagnetic resistance of advancing to wheel in power-off.

Accompanying drawing explanation

Fig. 1 is that master of the present invention looks section structural scheme of mechanism;

Fig. 2 is the B-B cross-sectional view corresponding with Fig. 1;

Fig. 3 is the A-A cross-sectional view corresponding with Fig. 1;

Fig. 4 is the structural representation of unidirectional flywheel.

Embodiment

Participate in Fig. 1-3, the without hindrance motor of a kind of idle running, comprise shell 14, magnets of stator 1, machine shaft 15 and armature rotor 3, described machine shaft is socketed in the left side laying respectively at two ends, shell left and right, on right bearing 11 and 6, be rotatably assorted with described shell, described each magnets of stator 1 is distributed between armature rotor and side wall of outer shell, its left end is fixedly connected on machine shaft by stator support 19, described armature rotor 3 is positioned at shell, be enclosed within machine shaft, and be rotatably assorted with machine shaft by rotor bearing 9, its right-hand member is fixedly connected with the travelling gear 5 with machine shaft matched in clearance, the right-hand member of described shell is right end cap 7, this right end cap is fixedly connected with housing body portion by bolt, such connected mode is convenient to mounting box dismounting, gear ring 8 is fixedly connected with inside the ring-like lateral edges of right end cap, described gear ring is provided with internal tooth, some planetary gears 2 are evenly distributed with in gear ring, described planetary gear is provided with external tooth, and engage with the travelling gear 5 being positioned at inboard with the gear ring 8 be positioned at outside it respectively, the unidirectional flywheel 4 left can looking clockwise transmission is provided with in shell on the right side of individual planetary gear, the standing part 4.2 of described unidirectional flywheel 4 is fixedly sleeved on machine shaft 15, rotating part 4.1 is enclosed within outside standing part, coordinate with standing part one-directional rotation, described each planetary axle base 16 is arranged on the rotating part of unidirectional flywheel, be rotatably assorted with unidirectional flywheel rotating part.

For ensureing stable and simplified structure as much as possible, the quantity of described planetary gear 2 can be 3.

The commutator 12 of described armature rotor 3 can be arranged on its left end, and the sleeve pipe 18 of the carbon brush coordinated with this commutator is fixedly mounted on described stator support 19.

The power line connecting described carbon brush through the through wires hole 10 be arranged on machine shaft, then through the through wires hole 17 on described stator support, can be connected to the outer end of described carbon brush 13.

See Fig. 4, described unidirectional flywheel 4 can adopt the version of interior ratchet non-return mechanism to realize the cooperation of its rotating part 4.1 and standing part 4.2.Circular hole can be provided with in the middle part of described unidirectional flywheel rotating part, ring-like equally distributed some helical teeth 20 counterclockwise extended can be provided with in the middle of the hole wall of this circular hole, described unidirectional flywheel standing part 4.2 can be positioned at this circular hole, and the several one-way non-return ratchets 21 matched with the helical teeth on unidirectional flywheel rotating part can be provided with, described one-way non-return ratchet 21 can be made up of the shell fragment extended along clockwise direction and the plunger being located at shell fragment top, when unidirectional flywheel rotating part rotate counterclockwise or have rotate counterclockwise trend time, its plunger is inserted between described helical teeth, helical teeth is withstood, stop rotating part, make it to rotate counterclockwise, when rotating part rotates clockwise, the inclined-plane of helical teeth is rotated further after shell fragment pressure, thus achieve the one-way of unidirectional flywheel turns.

Usually, the quantity of described check pawl 21 can make 2 or 3.

For bonding stablizing and reducing rotary resistance to flywheel rotating part, the ball of left and right two ring type distribution can be set between unidirectional flywheel rotating part and standing part, the set-up mode of these balls can adopt mode or other any suitable mode of conventional ball bearings, and described two circle balls can lay respectively at the both sides of described ring-like helical teeth structure.

Described each bearing (comprising rotor bearing) can make ball bearing usually, also can make other rolling bearing or sliding shaft sleeve etc.

The so-called description relating to direction such as left and right, clockwise, counterclockwise, is only the facility on character express, does not form the restriction to true bearing, by reverse for the direction of wherein Arbitrary Relative, does not affect enforcement of the present invention.

Claims

1. dally without hindrance motor, comprise shell, magnets of stator, machine shaft and armature rotor, described machine shaft is socketed in the left side laying respectively at two ends, shell left and right, on right bearing, be rotatably assorted with described shell, described each magnets of stator is distributed between armature rotor and side wall of outer shell, its left end is fixedly connected on machine shaft by stator support, described armature rotor is positioned at shell, be enclosed within machine shaft fool, and be rotatably assorted with machine shaft by rotor bearing, its right-hand member is fixedly connected with the travelling gear with machine shaft matched in clearance, the right-hand member of described shell is the right end cap be fixedly connected with housing body portion, gear ring is fixedly connected with inside the ring-like lateral edges of right end cap, described gear ring is provided with internal tooth, some planetary gears are evenly distributed with in gear ring, described planetary gear is provided with external tooth, and engage with the gear ring be positioned at outside it and the travelling gear being positioned at its inboard respectively, the unidirectional flywheel that can rotate clockwise is provided with (by left apparent direction in shell on the right side of each planetary gear, lower same), the standing part of described unidirectional flywheel is fixedly sleeved on machine shaft, outside rotating part cover standing part, coordinate with standing part one-directional rotation, described each planetary axle base is arranged on the rotating part of unidirectional flywheel, be rotatably assorted with unidirectional flywheel rotating part.