CN204493597U - Screw thread wheel magnetic control clutch speed variator - Google Patents

Abstract

Screw thread wheel magnetic control clutch speed variator, comprise a driving shaft, screw shell, a passive free wheel, and left gear wheel, left buffering wheel, left spring, left thrust-bearing, right thrust-bearing, right spring, right buffering wheel, right gear wheel, sleeve foreign steamer, clutch pinion, clutch control magnetic sheet, driven axle and passive arbor wheel, it is characterized in that: screw shell is sleeved on driving shaft, screw shell is connected by long bearing with driving shaft, the left end of screw shell has left gear wheel, left buffering wheel and left spring, the right-hand member of screw shell has right gear wheel, right buffering wheel and right spring, screw thread is had between left buffering wheel and right buffering wheel, there is a passive free wheel in the stage casing of screw shell, the center hole of passive free wheel has screw thread, passive free wheel left and right side has left thrust-bearing and right thrust-bearing, the right side of right gear wheel has sleeve foreign steamer and clutch pinion successively, clutch pinion center hole has interior straight-tooth, the driving shaft cylindrical be positioned on the right side of long bearing has straight-tooth to be the outer straight-tooth of driving shaft, release spring is had on the right side of clutch pinion.

Description

Screw thread wheel magnetic control clutch speed variator

Technical field

The present invention relates to screw thread wheel magnetic control clutch speed variator, be applicable to the clutch speed changer of all automobiles, belong to automotive transmission technical field.

Background technique

Since automobile is born, the paces of the clutch of human research's automobile were never interrupted, people develop many moneys automobile clutch miscellaneous, modern conventional clutch mainly contains friction clutch, fluid coupling clutch, magnetic clutch etc., but these clutches all cannot accomplish gear-driven efficient driving efficiency, patent of invention " 201510042453.5 side control screw spring clutch " " 201510103946.5 magnetic control side pressure screw spring clutch " " 201510117457.5 magnetic side pressure internal control screw spring clutch " of Wei Baiqing, achieve contactless, utilize spring buffer, without obvious pause and transition in rhythm or melody sense, the performance such as efficient driving power as the gear-driven efficiency, the present patent application protects another structure, utilize the screw shell of buried bearing and spring to be combined dexterously and utilize magnetic to scold principle the clutch pinion be arranged on the outer spur gear of driving shaft to be pushed into and the sleeve foreign steamer magnet attraction that with drive shaft bearing be connected outer with driving shaft, and finally " engage " with sliding card cage phase the clutch speed changer rotated by sliding card wheel, the present invention has the contactless of more best performance, utilize spring buffer, without obvious pause and transition in rhythm or melody sense, the clutch of efficient driving power as the gear-driven efficiency.

Summary of the invention

The object of this invention is to provide a kind of utilize the screw shell of buried bearing and spring to be combined dexterously and utilize magnetic to scold principle the clutch pinion be arranged on the outer spur gear of driving shaft to be pushed into sleeve foreign steamer magnet attraction that is outer with driving shaft and that be connected with drive shaft bearing and finally by sliding block take turns " to engage " with sliding card cage phase rotate screw thread wheel magnetic control clutch speed variator.

Screw thread wheel magnetic control clutch speed variator, comprise a driving shaft, screw shell, a passive free wheel, and left gear wheel, left buffering wheel, left spring, left thrust-bearing, right thrust-bearing, right spring, right buffering wheel, right gear wheel, sleeve foreign steamer, clutch pinion, clutch control magnetic sheet, driven axle and passive arbor wheel; It is characterized in that:

1, screw shell is sleeved on driving shaft, screw shell is connected by long bearing with driving shaft, screw shell can only rotate around driving shaft, screw shell can not do and move left and right along driving shaft axial direction outside driving shaft, the high order end of screw shell is installed with a left gear wheel, the right side of left gear wheel is installed with a left buffering wheel, the low order end of screw shell is installed with a right gear wheel, the left side of right gear wheel is installed with a right buffering wheel, periphery between the left buffering wheel of screw shell and right buffering wheel there is screw thread, there is a passive free wheel in the stage casing of screw shell, the center hole of passive free wheel has screw thread, the outside thread of screw shell and the internal thread of passive free wheel match, when passive free wheel rotates on the outside thread of screw shell, can rotate forward on the screw thread of screw shell and to be moved to the left or counterrotating moves right, a left thrust-bearing is installed on the left of passive free wheel, left thrust-bearing is by a thrust-bearing inner ring, multiple thrust-bearing ball, a set of thrust-bearing bearer ring, with a thrust-bearing outer shroud composition, the thrust-bearing inner ring of left thrust-bearing is fixedly connected with by thrust-bearing supporting rod with passive free wheel left surface, the right side of passive free wheel is provided with a right thrust-bearing, right thrust-bearing is by a thrust-bearing inner ring, multiple thrust-bearing ball, a set of thrust-bearing bearer ring, with a thrust-bearing outer shroud composition, the thrust-bearing inner ring of right thrust-bearing is fixedly connected with by thrust-bearing supporting rod with passive free wheel right flank, the thrust-bearing inner ring of left thrust-bearing does not contact with screw shell outside thread, the thrust-bearing inner ring of right thrust-bearing does not contact with screw shell outside thread, a left spring is had between left thrust-bearing and left gear wheel, the left end of left spring is fixed on the right flank of left gear wheel, the right-hand member of left spring is fixedly mounted on the thrust-bearing outer shroud left surface of left thrust-bearing, a right spring is had between right thrust-bearing and right gear wheel, the left end of right spring is fixedly mounted on the thrust-bearing outer shroud right flank of right thrust-bearing, the right-hand member of right spring is fixed on the left surface of right gear wheel, left spring is consistent with the spring steel bar Hand of spiral of right spring, the spring ring internal diameter of left spring is larger than the external diameter of left buffering wheel, but it is less than the external diameter of left gear wheel, less than the external diameter of left thrust-bearing, the spring ring internal diameter of right spring is larger than the external diameter of right buffering wheel, but it is less than the external diameter of right gear wheel, less than the external diameter of right thrust-bearing, the external diameter of passive free wheel is larger than the external diameter of left thrust-bearing and right thrust-bearing, left thrust-bearing on the left of passive free wheel, left spring, left buffering wheel, right thrust-bearing on the right side of left gear wheel and passive free wheel, right spring, right buffering wheel, right gear wheel size, structure full symmetric, it is passive free wheel tooth that passive free wheel has external gear, and passive free wheel tooth is meshed with the outer gear teeth driven axle gear teeth of passive arbor wheel, and passive arbor wheel is arranged on driven axle,

The right side of right gear wheel fixedly mounts a sleeve foreign steamer, a clutch pinion is had on the right side of sleeve foreign steamer, clutch pinion center hole has interior straight-tooth, the driving shaft cylindrical be positioned on the right side of long bearing has straight-tooth to be the outer straight-tooth of driving shaft, in clutch pinion, the outer straight-tooth of straight-tooth and driving shaft matches and is meshed, clutch pinion and driving shaft rotate with angular velocity, clutch pinion can move left and right along driving shaft shaft axis, clutch pinion is made up of friction disc and permanent magnetism disk, two magnetic pole lines of permanent magnetism disk are parallel with driving shaft, the right flank of permanent magnetism disk is installed with a release spring, the right-hand member of release spring is fixedly mounted on release spring fixed tray, release spring fixed tray and driving shaft are fixedly linked, a clutch control magnetic sheet is had directly on the right side of permanent magnetism disk, clutch control magnetic sheet has a clutch control magnetic sheet groove that Open Side Down, the wide external diameter than release spring of groove of clutch control magnetic sheet groove is slightly large, clutch control magnetic sheet can do moving up and down perpendicular to driving shaft shaft axis, and clutch control magnetic sheet can be moved down into clutch control magnetic sheet groove to be fastened on release spring, but do not contact with release spring, two magnetic pole lines of clutch control magnetic sheet are parallel with driving shaft, the magnetic pole of clutch control magnetic sheet is contrary with the magnetic pole of permanent magnetism disk, namely when clutch control magnetic sheet moves down, the magnetic pole repulsion of clutch control magnetic sheet push against permanent magnetism disk and is moved to the left, and the friction disc that permanent magnetism disk left surface is fixedly linked is shifted onto with friction disc on the left of sleeve foreign steamer right flank be affixed, and because permanent magnetism disk is to the magnetic effect in the sleeve foreign steamer magnetic face of sleeve foreign steamer, friction disc and sleeve foreign steamer are pulled together rotate,

Sleeve foreign steamer is fixedly mounted on the cylindrical of screw shell, the interior annulus of sleeve foreign steamer right flank is sleeve foreign steamer magnetic face, the outer toroid of sleeve foreign steamer right flank is the outer skidding card face of sleeve, there is multiple sleeve foreign steamer sliding card cage in outer skidding card face with sleeve, sleeve foreign steamer sliding card cage is semi-circular cylindrical, the interior annulus of the friction disc left surface of clutch pinion is clutch pinion magnetic surface, the outer toroid of friction disc left surface is clutch skidding card face, clutch skidding card face there is multiple clutch skidding card take turns, clutch skidding card wheel is by sliding card wheel, sliding card wheel shaft, sliding card axle bearing bar, with sliding card wheel groove composition, sliding card wheel can rotate around sliding card wheel shaft, the shaft axis of sliding card wheel is overlapping with the radial line of clutch pinion, the sliding outer arc radius of card wheel and the semi-circular cylindrical groove match of sleeve foreign steamer sliding card cage, sliding card wheel is made just to snap in sleeve foreign steamer sliding card cage.

2, when the upper circular arc that clutch control magnetic sheet is moved down into clutch control magnetic sheet is concordant with circular arc on the clutch pinion on the left of it, namely the clutch control magnetic sheet groove top of clutch control magnetic sheet be just stuck in distance release spring spring steel on end face 3mm ~ 10mm position, the magnetic repulsion of clutch control magnetic sheet by the friction disc of clutch pinion and permanent magnetism disk to left translation, and be pushed into the right flank of friction disc close to sleeve foreign steamer, the clutch skidding card in now clutch skidding card face is taken turns on the outer skidding card face of the sleeve abutting in sleeve foreign steamer and is rotated, simultaneously, the permanent magnetism disk magnetic attraction of clutch pinion sleeve foreign steamer magnetic face, the rotational speed of sleeve foreign steamer and the rotational speed of clutch pinion are moved closer to, because sleeve foreign steamer and screw shell are connected by long bearing with driving shaft and make screw shell and driving shaft rotate independently separately, and screw shell and passive free wheel by rotating, screw thread is non-rigid to connect, the rotational speed of passive free wheel and the rotational speed of screw shell inconsistent time, therefore passive free wheel can rotate and make the buffering that the rotational velocity difference of screw shell and passive free wheel obtains on screw shell, so the rotational speed of sleeve foreign steamer is easy to the rotational speed close to clutch pinion, the rotational speed of sleeve foreign steamer to differ with the rotational speed of clutch pinion be no more than D% time, 5%≤D%≤30%, clutch skidding card wheel snaps in the sleeve foreign steamer sliding card cage on the outer skidding card face of sleeve, thus the clutch pinion magnetic surface of permanent magnetism disk is inhaled on sleeve foreign steamer magnetic face, clutch skidding card is taken turns and can not skid off sleeve foreign steamer sliding card cage, and then permanent magnetism disk and sleeve foreign steamer are pulled together rotate, even if clutch pinion adhesive together with sleeve foreign steamer rotates with angular velocity, to be connected by straight-tooth due to clutch pinion and driving shaft and to rotate with angular velocity, so when making clutch pinion and the adhesive of sleeve foreign steamer rotate with angular velocity under the magnetic repulsion effect of clutch control magnetic sheet, driving shaft rotates with angular velocity together with sleeve foreign steamer, before clutch pinion and the non-adhesive of sleeve foreign steamer, driving shaft and sleeve foreign steamer rotate with independently speed and are independent of each other separately, and sleeve foreign steamer rotates with angular velocity together with screw shell, passive free wheel, and passive free wheel drives passive arbor wheel to rotate with linear velocity together.

3, if before clutch pinion and the non-adhesive of sleeve foreign steamer, the clutch pinion angular velocity of rotation of driving shaft is greater than the angular velocity of rotation of sleeve foreign steamer, then after clutch pinion and the adhesive of sleeve foreign steamer, sleeve foreign steamer drives screw shell to rotate with angular velocity, now screw shell angular velocity of rotation is greater than the angular velocity of rotation of passive free wheel, because passive free wheel rotates with the collinear speed of passive arbor wheel by the loading effects of driven axle and passive arbor wheel, be moved to the left so passive free wheel rotates forward on the screw thread of screw shell cylindrical, left thrust-bearing extruding left spring when passive free wheel is moved to the left on screw shell on the left of passive free wheel, the right thrust-bearing on right side stretches right spring, the spring-return power effect of left spring and right spring makes passive free wheel on screw shell, be moved to the left speed to slow down, this slows down power by left spring and right spring transmission, the rotational speed of passive free wheel is accelerated gradually, make left thrust-bearing on the left of passive free wheel the closer to left buffering wheel when passive free wheel is moved to the left on screw shell, passive free wheel is larger by the spring-return power of left spring and right spring, the speed that passive free wheel is moved to the left on screw shell is slower, when passive free wheel be moved to the left on screw shell left thrust-bearing left surface recline the right flank of left buffering wheel time, by left buffering wheel, passive free wheel is stopped that stopping is moved to the left, now screw shell angular velocity of rotation is consistent with the angular velocity of rotation of passive free wheel, interaction force between left thrust-bearing and left buffering wheel is internal force, not consumed energy.

4, if before clutch pinion and the non-adhesive of sleeve foreign steamer, the clutch pinion angular velocity of rotation of driving shaft is less than the angular velocity of rotation of sleeve foreign steamer, then after clutch pinion and the adhesive of sleeve foreign steamer, sleeve foreign steamer drives screw shell to rotate with angular velocity, now screw shell angular velocity of rotation is less than the angular velocity of rotation of passive free wheel, because passive free wheel rotates with the collinear speed of passive arbor wheel by the loading effects of driven axle and passive arbor wheel, so the counterrotating on the screw thread of screw shell cylindrical of passive free wheel moves right, right thrust-bearing when passive free wheel moves right on screw shell on the right side of passive free wheel extrudes right spring, the left thrust-bearing stretching left spring in left side, the spring-return power effect of left spring and right spring makes passive free wheel speed of moving right on screw shell slow down, this slows down power by left spring and right spring transmission, the rotational speed of passive free wheel is slowed down gradually, make right thrust-bearing on the right side of passive free wheel the closer to right buffering wheel when passive free wheel moves right on screw shell, passive free wheel is larger by the spring-return power of left spring and right spring, the speed that passive free wheel moves right on screw shell is slower, when passive free wheel move right on screw shell right thrust-bearing right flank recline the left surface of right buffering wheel time, by right buffering wheel, passive free wheel is stopped that stopping moves right, now screw shell angular velocity of rotation is consistent with the angular velocity of rotation of passive free wheel, interaction force between right thrust-bearing and right buffering wheel is internal force, not consumed energy.

The present invention compared with prior art has the following advantages:

1. clutch process of the present invention is the contactless control of magnetic drives, and in clutch pinion and sleeve foreign steamer engagement process, because sleeve foreign steamer and screw shell are connected by bearing with driving shaft, and screw shell and passive free wheel are by be threaded and by the effect of left spring and right spring two spring forces, so clutch pinion is more steady with the engagement process of sleeve foreign steamer.

2. the transmission after the present invention is synchronously direct-drive, and can not produce the reduction of any transmission efficiency.

Accompanying drawing explanation

Fig. 1 is the clutch separated state schematic diagram of the embodiment of the present invention;

Fig. 2 is clutch closed state schematic diagram embodiment illustrated in fig. 1;

Fig. 3 is P enlarged diagram embodiment illustrated in fig. 1;

Fig. 4 is A-A generalized section embodiment illustrated in fig. 1;

Fig. 5 is B-B generalized section embodiment illustrated in fig. 1;

Fig. 6 is C-C generalized section embodiment illustrated in fig. 2;

Fig. 7 is sliding card wheel generalized section embodiment illustrated in fig. 5.

In Fig. 1-7: 1, driving shaft 2, driven axle 3, left gear wheel 4, left buffering wheel 5, left spring 6, long bearing 7, long bearing outside thread 8, left thrust-bearing 9, passive free wheel 10, passive free wheel tooth 11, thrust-bearing supporting rod 12, right thrust-bearing 13, right spring 14, right buffering wheel 15, right gear wheel 16, sleeve foreign steamer 17, friction disc 18, permanent magnetism disk 19, the outer straight-tooth 20 of driving shaft, release spring 21, release spring fixed tray 22, passive arbor wheel 23, the driven axle gear teeth 24, clutch control magnetic sheet 25, the supporting of clutch control magnetic sheet is 26, thrust-bearing inner ring 27, thrust-bearing ball 28, thrust-bearing bearer ring 29, thrust-bearing outer shroud 30, the outer skidding card face 31 of sleeve, sleeve foreign steamer magnetic face 32, sleeve foreign steamer sliding card cage 33, clutch skidding card face 34, clutch pinion magnetic surface 35, clutch skidding card wheel 36, clutch control magnetic sheet groove 37, sliding card wheel 38, sliding card wheel shaft 39, sliding card axle bearing bar 40, sliding card wheel groove.

Embodiment

In the embodiment shown in Fig. 1-7: screw thread wheel magnetic control clutch speed variator, comprise a driving shaft 1, screw shell, a passive free wheel 9, and left gear wheel 3, left buffering wheel 4, left spring 5, left thrust-bearing 8, right thrust-bearing 12, right spring 13, right buffering wheel 14, right gear wheel 15, sleeve foreign steamer 16, clutch pinion, clutch control magnetic sheet 24, driven axle 2 and passive arbor wheel 22, it is characterized in that: screw shell is sleeved on driving shaft 1, screw shell is connected by long bearing 6 with driving shaft 1, screw shell can only rotate around driving shaft 1, screw shell can not do and move left and right along driving shaft 1 axial direction outside driving shaft 1, the high order end of screw shell is installed with a left gear wheel 3, the right side of left gear wheel 3 is installed with a left buffering wheel 4, the low order end of screw shell is installed with a right gear wheel 15, the left side of right gear wheel 15 is installed with a right buffering wheel 14, periphery between the left buffering wheel 4 of screw shell and right buffering wheel 14 there is screw thread, there is a passive free wheel 9 in the stage casing of screw shell, the center hole of passive free wheel 9 has screw thread, the outside thread of screw shell and the internal thread of passive free wheel 9 match, when passive free wheel 9 rotates on the outside thread of screw shell, can rotate forward on the screw thread of screw shell and to be moved to the left or counterrotating moves right, a left thrust-bearing 8 is installed on the left of passive free wheel 9, left thrust-bearing 8 is by a thrust-bearing inner ring 26, multiple thrust-bearing ball 27, a set of thrust-bearing bearer ring 28, form with a thrust-bearing outer shroud 29, the thrust-bearing inner ring 26 of left thrust-bearing 8 is fixedly connected with by thrust-bearing supporting rod 11 with passive free wheel 9 left surface, the right side of passive free wheel 9 is provided with a right thrust-bearing 12, right thrust-bearing 12 is by a thrust-bearing inner ring 26, multiple thrust-bearing ball 27, a set of thrust-bearing bearer ring 28, form with a thrust-bearing outer shroud 29, the thrust-bearing inner ring 26 of right thrust-bearing 12 is fixedly connected with by thrust-bearing supporting rod 11 with passive free wheel 9 right flank, the thrust-bearing inner ring 26 of left thrust-bearing 8 does not contact with screw shell outside thread, the thrust-bearing inner ring 26 of right thrust-bearing 12 does not contact with screw shell outside thread, a left spring 5 is had between left thrust-bearing 8 and left gear wheel 3, the left end of left spring 5 is fixed on the right flank of left gear wheel 3, the right-hand member of left spring 5 is fixedly mounted on thrust-bearing outer shroud 29 left surface of left thrust-bearing 8, a right spring 13 is had between right thrust-bearing 12 and right gear wheel 15, the left end of right spring 13 is fixedly mounted on thrust-bearing outer shroud 29 right flank of right thrust-bearing 12, the right-hand member of right spring 13 is fixed on the left surface of right gear wheel 15, left spring 5 is consistent with the spring steel bar Hand of spiral of right spring 13, the spring ring internal diameter of left spring 5 is larger than the external diameter of left buffering wheel 4, but it is less than the external diameter of left gear wheel 3, less than the external diameter of left thrust-bearing 8, the spring ring internal diameter of right spring 13 is larger than the external diameter of right buffering wheel 14, but it is less than the external diameter of right gear wheel 15, less than the external diameter of right thrust-bearing 12, the external diameter of passive free wheel 9 is larger than the external diameter of left thrust-bearing 8 and right thrust-bearing 12, left thrust-bearing 8 on the left of passive free wheel 9, left spring 5, left buffering wheel 4, right thrust-bearing 12 on the right side of left gear wheel 3 and passive free wheel 9, right spring 13, right buffering wheel 14, right gear wheel 15 size, structure full symmetric, it is passive free wheel tooth 10 that passive free wheel 9 has external gear, and passive free wheel tooth 10 is meshed with the outer gear teeth driven axle gear teeth 23 of passive arbor wheel 22, and passive arbor wheel 22 is arranged on driven axle.

The right side of right gear wheel 15 fixedly mounts a sleeve foreign steamer 16, a clutch pinion is had on the right side of sleeve foreign steamer 16, clutch pinion center hole has interior straight-tooth, driving shaft 1 cylindrical be positioned on the right side of long bearing 6 has straight-tooth to be the outer straight-tooth 19 of driving shaft, in clutch pinion, the outer straight-tooth 19 of straight-tooth and driving shaft matches and is meshed, clutch pinion and driving shaft 1 rotate with angular velocity, clutch pinion can move left and right along driving shaft 1 shaft axis, clutch pinion is made up of friction disc 17 and permanent magnetism disk 18, two magnetic pole lines of permanent magnetism disk 18 are parallel with driving shaft 1, the right flank of permanent magnetism disk 18 is installed with a release spring 20, the right-hand member of release spring 20 is fixedly mounted on release spring fixed tray 21, release spring fixed tray 21 and driving shaft 1 are fixedly linked, a clutch control magnetic sheet 24 is had directly on the right side of permanent magnetism disk 18, clutch control magnetic sheet 24 has a clutch control magnetic sheet groove 36 that Open Side Down, the wide external diameter than release spring 20 of groove of clutch control magnetic sheet groove 36 is slightly large, clutch control magnetic sheet 24 can do moving up and down perpendicular to driving shaft 1 shaft axis, and clutch control magnetic sheet 24 can be moved down into clutch control magnetic sheet groove 36 to be fastened on release spring 20, but do not contact with release spring 20, two magnetic pole lines of clutch control magnetic sheet 24 are parallel with driving shaft 1, the magnetic pole of clutch control magnetic sheet 24 is contrary with the magnetic pole of permanent magnetism disk 18, namely when clutch control magnetic sheet 24 moves down, the magnetic pole repulsion of clutch control magnetic sheet 24 push against permanent magnetism disk 18 and is moved to the left, and the friction disc 17 that permanent magnetism disk 18 left surface is fixedly linked is shifted onto with friction disc 17 on the left of sleeve foreign steamer right flank be affixed, and because the magnetic effect in the sleeve foreign steamer magnetic face 31 of permanent magnetism disk 18 pairs of sleeve foreign steamers, friction disc 17 and sleeve foreign steamer are pulled together rotate.

Sleeve foreign steamer is fixedly mounted on the cylindrical of screw shell, the interior annulus of sleeve foreign steamer right flank is sleeve foreign steamer magnetic face 31, the outer toroid of sleeve foreign steamer right flank is the outer skidding card face 30 of sleeve, there is multiple sleeve foreign steamer sliding card cage 32 in outer skidding card face 30 with sleeve, sleeve foreign steamer sliding card cage 32 is semi-circular cylindrical, the interior annulus of friction disc 17 left surface of clutch pinion is clutch pinion magnetic surface 34, the outer toroid of friction disc 17 left surface is clutch skidding card face 33, clutch skidding card face 33 there is multiple clutch skidding card take turns 35, clutch skidding card wheel 35 is by sliding card wheel 37, sliding card wheel shaft 38, sliding card axle bearing bar 39, form with sliding card wheel groove 40, sliding card wheel 37 can rotate around sliding card wheel shaft 38, the shaft axis of sliding card wheel 37 is overlapping with the radial line of clutch pinion, the sliding outer arc radius of card wheel 37 and the semi-circular cylindrical groove match of sleeve foreign steamer sliding card cage 32, sliding card wheel 37 is made just to snap in sleeve foreign steamer sliding card cage 32.

When the upper circular arc that clutch control magnetic sheet 24 is moved down into clutch control magnetic sheet 24 is concordant with circular arc on the clutch pinion on the left of it, namely clutch control magnetic sheet groove 36 top of clutch control magnetic sheet 24 be just stuck in distance release spring 20 spring steel on end face 3mm ~ 10mm position, the magnetic repulsion of clutch control magnetic sheet 24 by the friction disc 17 of clutch pinion and permanent magnetism disk 18 to left translation, and be pushed into the right flank of friction disc 17 close to sleeve foreign steamer 16, the outer skidding card face 33 of sleeve that the clutch skidding card wheel 35 in now clutch skidding card face 33 abuts in sleeve foreign steamer 16 rotates, simultaneously, permanent magnetism disk 18 magnetic attraction of clutch pinion sleeve foreign steamer magnetic face 31, the rotational speed of sleeve foreign steamer 16 and the rotational speed of clutch pinion are moved closer to, because sleeve foreign steamer 16 and screw shell are connected by long bearing 6 with driving shaft 1 and make screw shell and driving shaft 1 rotate independently separately, and screw shell and passive free wheel 9 by rotating, screw thread is non-rigid to connect, the rotational speed of passive free wheel 9 and the rotational speed of screw shell inconsistent time, therefore passive free wheel 9 can rotate and make the buffering that the rotational velocity difference of screw shell and passive free wheel 9 obtains on screw shell, so the rotational speed of sleeve foreign steamer 16 is easy to the rotational speed close to clutch pinion, the rotational speed of sleeve foreign steamer 16 to differ with the rotational speed of clutch pinion be no more than D% time, 5%≤D%≤30%, clutch skidding card wheel 35 snaps in the sleeve foreign steamer sliding card cage 32 on the outer skidding card face 33 of sleeve, thus make the clutch pinion magnetic surface 34 of permanent magnetism disk 18 inhale on sleeve foreign steamer magnetic face 31, make clutch skidding card take turns 35 and can not skid off sleeve foreign steamer sliding card cage 32, and then permanent magnetism disk 18 and sleeve foreign steamer 16 are pulled together rotate, even if clutch pinion adhesive together with sleeve foreign steamer 16 rotates with angular velocity, to be connected by straight-tooth due to clutch pinion and driving shaft 1 and to rotate with angular velocity, so when making clutch pinion and sleeve foreign steamer 16 adhesive rotate with angular velocity under the magnetic repulsion effect of clutch control magnetic sheet 24, driving shaft 1 rotates with angular velocity together with sleeve foreign steamer 16, before clutch pinion and the non-adhesive of sleeve foreign steamer 16, driving shaft 1 and sleeve foreign steamer 16 rotate with independently speed separately and are independent of each other, and sleeve foreign steamer 16 rotates with angular velocity together with screw shell, passive free wheel 9, and passive free wheel 9 drives passive arbor wheel 22 to rotate with linear velocity together.

If before clutch pinion and the non-adhesive of sleeve foreign steamer 16, the clutch pinion angular velocity of rotation of driving shaft 1 is greater than the angular velocity of rotation of sleeve foreign steamer 16, then after clutch pinion and sleeve foreign steamer 16 adhesive, sleeve foreign steamer 16 drives screw shell to rotate with angular velocity, now screw shell angular velocity of rotation is greater than the angular velocity of rotation of passive free wheel 9, because passive free wheel 9 rotates with linear velocity with passive arbor wheel 22 by the loading effects of driven axle 2 and passive arbor wheel 22, be moved to the left so passive free wheel 9 rotates forward on the screw thread of screw shell cylindrical, left thrust-bearing 8 when passive free wheel 9 is moved to the left on screw shell on the left of passive free wheel 9 extrudes left spring 5, the right thrust-bearing 12 on right side stretches right spring 13, the spring-return power effect of left spring 5 and right spring 13 makes passive free wheel 9 on screw shell, be moved to the left speed to slow down, this is slowed down power and is transmitted by left spring 5 and right spring 13, the rotational speed of passive free wheel 9 is accelerated gradually, make the left thrust-bearing 8 on the left of passive free wheel 9 the closer to left buffering wheel 4 when passive free wheel 9 is moved to the left on screw shell, passive free wheel 9 is larger by the spring-return power of left spring 5 and right spring 13, the speed that passive free wheel 9 is moved to the left on screw shell is slower, when passive free wheel 9 be moved to the left on screw shell left thrust-bearing 8 left surface recline the right flank of left buffering wheel 4 time, by left buffering wheel 4, passive free wheel 9 is stopped that stopping is moved to the left, now screw shell angular velocity of rotation is consistent with the angular velocity of rotation of passive free wheel 9, interaction force between left thrust-bearing 8 and left buffering wheel 4 is internal force, not consumed energy.

If before clutch pinion and the non-adhesive of sleeve foreign steamer 16, the clutch pinion angular velocity of rotation of driving shaft 1 is less than the angular velocity of rotation of sleeve foreign steamer 16, then after clutch pinion and sleeve foreign steamer 16 adhesive, sleeve foreign steamer 16 drives screw shell to rotate with angular velocity, now screw shell angular velocity of rotation is less than the angular velocity of rotation of passive free wheel 9, because passive free wheel 9 rotates with linear velocity with passive arbor wheel 22 by the loading effects of driven axle 2 and passive arbor wheel 22, so the counterrotating on the screw thread of screw shell cylindrical of passive free wheel 9 moves right, right thrust-bearing 12 when passive free wheel 9 moves right on screw shell on the right side of passive free wheel 9 extrudes right spring 13, the left thrust-bearing 8 in left side stretches left spring 5, the spring-return power effect of left spring 5 and right spring 13 makes passive free wheel 9 speed of moving right on screw shell slow down, this is slowed down power and is transmitted by left spring 5 and right spring 13, the rotational speed of passive free wheel 9 is slowed down gradually, make the right thrust-bearing 12 on the right side of passive free wheel 9 the closer to right buffering wheel 14 when passive free wheel 9 moves right on screw shell, passive free wheel 9 is larger by the spring-return power of left spring 5 and right spring 13, the speed that passive free wheel 9 moves right on screw shell is slower, when passive free wheel 9 move right on screw shell right thrust-bearing 12 right flank recline the left surface of right buffering wheel 14 time, by right buffering wheel 14, passive free wheel 9 is stopped that stopping moves right, now screw shell angular velocity of rotation is consistent with the angular velocity of rotation of passive free wheel 9, interaction force between right thrust-bearing 12 and right buffering wheel 14 is internal force, not consumed energy.

Claims (1)

1. screw thread wheel magnetic control clutch speed variator, comprise a driving shaft (1), a screw shell, a passive free wheel (9), and left gear wheel (3), left buffering wheel (4), left spring (5), left thrust-bearing (8), right thrust-bearing (12), right spring (13), right buffering wheel (14), right gear wheel (15), sleeve foreign steamer (16), clutch pinion, clutch control magnetic sheet (24), driven axle (2) and passive arbor wheel (22), it is characterized in that: screw shell is sleeved on driving shaft (1), screw shell is connected by long bearing (6) with driving shaft (1), the high order end of screw shell is installed with a left gear wheel (3), the right side of left gear wheel (3) is installed with a left buffering wheel (4), the low order end of screw shell is installed with a right gear wheel (15), the left side of right gear wheel (15) is installed with a right buffering wheel (14), periphery between the left buffering wheel (4) of screw shell and right buffering wheel (14) there is screw thread, there is a passive free wheel (9) in the stage casing of screw shell, the center hole of passive free wheel (9) has screw thread, passive free wheel (9) left side is provided with a left thrust-bearing (8), left thrust-bearing (8) is by a thrust-bearing inner ring (26), multiple thrust-bearing ball (27), a set of thrust-bearing bearer ring (28), with thrust-bearing outer shroud (29) composition, the thrust-bearing inner ring (26) of left thrust-bearing (8) is fixedly connected with by thrust-bearing supporting rod (11) with passive free wheel (9) left surface, the right side of passive free wheel (9) is provided with a right thrust-bearing (12), right thrust-bearing (12) is by a thrust-bearing inner ring (26), multiple thrust-bearing ball (27), a set of thrust-bearing bearer ring (28), with thrust-bearing outer shroud (29) composition, the thrust-bearing inner ring (26) of right thrust-bearing (12) is fixedly connected with by thrust-bearing supporting rod (11) with passive free wheel (9) right flank, the thrust-bearing inner ring (26) of left thrust-bearing (8) does not contact with screw shell outside thread, the thrust-bearing inner ring (26) of right thrust-bearing (12) does not contact with screw shell outside thread, a left spring (5) is had between left thrust-bearing (8) and left gear wheel (3), the left end of left spring (5) is fixed on the right flank of left gear wheel (3), the right-hand member of left spring (5) is fixedly mounted on thrust-bearing outer shroud (29) left surface of left thrust-bearing (8), a right spring (13) is had between right thrust-bearing (12) and right gear wheel (15), the left end of right spring (13) is fixedly mounted on thrust-bearing outer shroud (29) right flank of right thrust-bearing (12), the right-hand member of right spring (13) is fixed on the left surface of right gear wheel (15), the spring ring internal diameter of left spring (5) is larger than the external diameter of left buffering wheel (4), but it is less than the external diameter of left gear wheel (3), less than the external diameter of left thrust-bearing (8), the spring ring internal diameter of right spring (13) is larger than the external diameter of right buffering wheel (14), but it is less than the external diameter of right gear wheel (15), less than the external diameter of right thrust-bearing (12), the external diameter of passive free wheel (9) is larger than the external diameter of left thrust-bearing (8) and right thrust-bearing (12), the left thrust-bearing (8) in passive free wheel (9) left side, left spring (5), left buffering wheel (4), the right thrust-bearing (12) on left gear wheel (3) and passive free wheel (9) right side, right spring (13), right buffering wheel (14), right gear wheel (15) size, structure full symmetric.