CN203796901U - Bidirectional automatic speed-changing transmission mechanism - Google Patents
Bidirectional automatic speed-changing transmission mechanism Download PDFInfo
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- CN203796901U CN203796901U CN201420209841.9U CN201420209841U CN203796901U CN 203796901 U CN203796901 U CN 203796901U CN 201420209841 U CN201420209841 U CN 201420209841U CN 203796901 U CN203796901 U CN 203796901U
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Abstract
The utility model provides a bidirectional automatic speed-changing transmission mechanism, belongs to the technical field of machinery and solves the problem that an existing motor transmission mechanism cannot realize backing. The bidirectional automatic speed-changing transmission mechanism comprises an automatic speed changer, a differential and a shell, the automatic speed changer and the differential are positioned in the shell and connected with each other, an advancing isolator sleeves on a speed changer shaft of the automatic speed changer, a clamping ring sleeves on the speed changer shaft and is fixedly connected with the advancing isolator, clamping heads are arranged on the circumferential outer side wall of the clamping ring, an electromagnet with a push rod is fixedly connected on the shell, a pin shaft is arranged between the push rod and the clamping ring, the push rod can push the pin shaft to enable the same to be connected with the clamping heads in a clamped manner, and an automatic spring resetting structure capable of enabling the pin shaft to reset is arranged between the push rod and the clamping ring. The bidirectional automatic speed-changing transmission mechanism has the advantages of capability of enabling electric tricycles and electromobiles to realize a backing function, freeness in switching between high speed and low speed and the like.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to driving mechanism, particularly bidirectional automatic gear shifting driving mechanism.
Background technique
The brushless hub electric motor that the current electro-tricycle of China, electric vehicle adopt and brushless differential speed motor and series machine are commonplace, these three kinds of motors are owing to considering the reasonable equilibrium of electro-tricycle, the speed of electric vehicle operation and the two factor of load in their designs, therefore in use there is the shortcoming of climbing and speed aspect, and inrush current is large, reduce the working life of storage battery, cause and use amplification and the energy waste of power of motor, and the demand of load, speed, climbing can not meet.
For the problem of above existence, people have made improvement, and what have has also applied for patent, and for example Chinese patent literature data discloses electro-tricycle, electric vehicle automatic speed change motor transmission mechanism [application number: 201110029082.9, notice of authorization number: CN102606689A], it has motor, automatic transmission and differential system, automatic transmission comprises transmission shaft, driving gear, sun gear fixed plate, driving disc, case and connecting plate, the motor shaft of motor drives transmission shaft, the other end of transmission shaft is installed connecting plate, fixed block on connecting plate is connected with case, in case top, planetary pinion is installed, planetary bottom connects firmly the driving disc with the piece of crowing, the piece of crowing is connected with extension spring, driving disc through driving disc spline housing outside transmission shaft, planetary pinion matches with sun gear, sun gear matches with sun gear fixed plate, two side perforations of sun gear fixed plate are fixed on gear box, driving disc is connected with driving gear by driving disc spline, driving gear drives carrier gear, gap bridge follower drives driven gear, driven gear connects differential system, differential system spline housing connects motor rear axle semiaxis.
This kind of motor transmission mechanism, cannot realize car-backing function, uses the electro-tricycle of this kind of motor transmission mechanism, electric vehicle to travel forward, and is unidirectional, and cannot moves backward.
Summary of the invention
The purpose of this utility model is for the above-mentioned problems in the prior art, and bidirectional automatic gear shifting driving mechanism is provided, and how this driving mechanism solution electro-tricycle, electric vehicle realize the problem of reversing.
The purpose of this utility model can realize by following technical proposal: a kind of bidirectional automatic gear shifting driving mechanism, comprise automatic transmission, differential mechanism and housing, described automatic transmission is all positioned at described housing with differential mechanism and both are connected, it is characterized in that, on the transmission shaft of described automatic transmission, cover has the one-way element of advancing, on described transmission shaft, also cover has snap ring, described snap ring is connected mutually with the one-way element that advances, on the circumferential outer side wall of described snap ring, there is dop, on described housing, be fixed with the electromagnet with push rod, between described push rod and snap ring, be provided with bearing pin, and push rod can promote bearing pin and make bearing pin and the clamping of dop phase, between described push rod and snap ring, be also provided with the spring automatic reset structure that can make bearing pin reset.
This bidirectional automatic gear shifting driving mechanism is arranged in electro-tricycle, electric vehicle, transmission shaft is connected with electric machine main shaft, the output terminal of differential mechanism is for connecting the rear axle shaft of electro-tricycle, electric vehicle, and the electric wire of electromagnet is connected with the reversing switch of electro-tricycle, electric vehicle.While advancing, electromagnet no electric circuit, bearing pin is positioned at initial position, and push rod contracts in electromagnet under the effect of spring automatic reset structure, bearing pin, and the one-way element that advances normally rotates, and electro-tricycle, electric vehicle are to overtake; When reversing, speed is generally slower, motor reversal, presses reversing switch, makes electromagnet energising, push rod overcomes spring automatic reset structure and promotes bearing pin, make bearing pin and the clamping of dop phase, snap ring is stuck, and snap ring can not rotate, the one-way element that advances can not rotate, and realizes the function of electro-tricycle, electric vehicle reversing.By magnet control, speed is fast, good stability.
In above-mentioned bidirectional automatic gear shifting driving mechanism, described spring automatic reset structure comprises fixed tube and spring, described bearing pin is positioned at fixed tube, on the madial wall of described fixed tube, there is gear edge, on described bearing pin, there is shoulder block, described spring housing on bearing pin, and one end of spring be resisted against gear along upper, the other end is resisted against on shoulder block.When electromagnet no electric circuit, under the effect of spring force, bearing pin can not reach outside fixed tube, and bearing pin can prop up push rod, and push rod is contracted in electromagnet; When electromagnet energising, push rod overcomes spring force, and bearing pin part is released outside fixed tube, makes bearing pin and the clamping of dop phase, and snap ring can not be rotated, and remains static, and the one-way element that makes to advance stops the rotation, and realizes car-backing function.
As another kind of situation, in above-mentioned bidirectional automatic gear shifting driving mechanism, described spring automatic reset structure comprises fixed tube, spring one and spring two, described bearing pin is positioned at fixed tube, described bearing pin comprises bearing pin one and bearing pin two, on the madial wall of described fixed tube, there is gear edge, on described bearing pin one, there is shoulder block one, on described bearing pin two, there is shoulder block two, described spring one is enclosed within on bearing pin one, described spring two is enclosed within on bearing pin two, one end of described spring one is resisted against gear along upper, the other end is resisted against on shoulder block one, one end of described spring two is resisted against on shoulder block one, the other end is resisted against on shoulder block two.This kind of structure, is applicable to having the electromagnet of circuit board, prevents that electromagnet from burning out in the time of energising adhesive; Double-spring structure, directly adhesive, and after adhesive, pass through circuit board, and reducing electric current, can not generate heat like this, temperature maintains degree more than 40 always, can not burn out.
In above-mentioned bidirectional automatic gear shifting driving mechanism, on described housing, there is fixed hole, described fixed tube is inserted in fixed hole fixed tube is fixed in housing.Fixed tube can be connected mutually by the mode of drive fit or welding and housing.
In above-mentioned bidirectional automatic gear shifting driving mechanism, described electromagnet overcoat has protective housing.Protective housing is to be made up of plastic materials, is bonded in outside electromagnet by glue, plays the effect of waterproof and dustproof.
In above-mentioned bidirectional automatic gear shifting driving mechanism, the described one-way element that advances comprises mounting plate, described mounting plate is fixed on housing, the center of described mounting plate has column through hole, in described through hole, be provided with needle roller and unidirectional ring, there are laterally several needle roller grooves the week of described unidirectional ring, described needle roller is positioned at described needle roller groove, and the diameter of described needle roller is greater than needle roller groove one end along unidirectional ring height radially, be less than the needle roller groove the other end along unidirectional ring height radially, described snap ring is fixed on unidirectional ring, described dop is positioned at the top of the circumferential outer side wall of snap ring.Snap ring is fixed by welding on unidirectional ring, between the circumferential outer side wall of unidirectional ring and through-hole side wall, there is small gap, when needle roller is positioned at the higher the other end of needle roller groove height, unidirectional ring can rotate freely, when needle roller is positioned at the lower one end of needle roller groove height, unidirectional ring is stuck, and can not rotate, and the one-way element that advances can only be along a direction rotation.
In above-mentioned bidirectional automatic gear shifting driving mechanism, the curved shape in bottom of described needle roller groove.The bottom of arc shape can better be slided needle roller.
As another kind of situation, in above-mentioned bidirectional automatic gear shifting driving mechanism, the described one-way element that advances comprises unidirectional ring gear and base plate, described unidirectional ring gear is fixed in described housing, described snap ring is fixed on the center of base plate, described dop is positioned at the top of the circumferential outer side wall of snap ring, and described base plate equal intervals is provided with several rotating ratchets, and the teeth groove that one end of described ratchet is positioned at described unidirectional ring gear makes to advance one-way element can only be along a direction rotation.Base plate and snap ring are all enclosed within on transmission shaft, and ratchet matches with unidirectional ring gear, and the one-way element that makes to advance can only be along a direction rotation.
In above-mentioned bidirectional automatic gear shifting driving mechanism, the curved shape of outer side wall of described ratchet, the center of described ratchet is connected with base plate by pin, one end of described ratchet is resisted against in the teeth groove of described unidirectional ring gear, the other end is connected with described base plate by torsion spring, and described torsion spring can rotate around described pin described ratchet.Curved shape outside ratchet, can slide ratchet smoothly along unidirectional ring gear, torsion spring pulls ratchet, and ratchet can be set back, and is difficult for blocking.
In above-mentioned bidirectional automatic gear shifting driving mechanism, a sidewall of described dop is along the radially setting of snap ring, the curved shape of another sidewall and seamlessly transitting with the circumferential outer side wall of described snap ring.One sidewall of dop is plane, and conveniently, with the clamping of bearing pin phase, opposite side seamlessly transits, even if occur that bearing pin does not have the accident of retraction in time, bearing pin also can be crossed dop, can not be stuck.
In above-mentioned bidirectional automatic gear shifting driving mechanism, described automatic transmission also comprises driving gear, driving disc, case and connecting plate, one end of described transmission shaft is connected with connecting plate, described connecting plate is connected mutually with described case, in described case top, several planetary pinions are installed, several described planetary middles have sun gear, described sun gear is connected with the described one-way element that advances by hub splines, described planetary bottom is fixed with the driving disc with centrifugal-block, described centrifugal-block is connected with extension spring, described driving disc is outside hub splines is enclosed within described transmission shaft, described driving disc is connected with described driving gear by hub splines, described driving gear is by gap bridge driving gear, gap bridge driven gear is connected with differential mechanism.
Compared with prior art, the bidirectional automatic gear shifting driving mechanism that the utility model provides has the following advantages:
1, be connected on housing electromagnet, spring automatic reset structure and bearing pin of this bidirectional automatic gear shifting driving mechanism, the one-way element that advances that can make to be enclosed within on transmission shaft stops operating, make electro-tricycle, electric vehicle there is the just progressive while, also can realize the function of reversing.
2, this bidirectional automatic gear shifting driving mechanism uses electromagnet moment that push rod is released, and blocks snap ring by bearing pin, spring automatic reset structure, and the one-way element that makes to advance stops operating, and speed is fast, good stability.
3, this bidirectional automatic gear shifting driving mechanism can switch freely between high speed and low speed, has solved the conversion with demand of speed and moment, meets user in climbing and very fast demand of travelling, and reduces inrush current, extends the working life of storage battery.
Brief description of the drawings
Fig. 1 is this bidirectional automatic gear shifting driving mechanism embodiment one overall structure sectional view.
Fig. 2 is the structural representation of this bidirectional automatic gear shifting driving mechanism embodiment one the one-way element that advances.
Fig. 3 is this bidirectional automatic gear shifting driving mechanism embodiment two overall structure sectional view.
Fig. 4 is the phase diagram of this bidirectional automatic gear shifting driving mechanism embodiment two spring automatic reset structure while moveing backward.
Fig. 5 is the structural representation of this bidirectional automatic gear shifting driving mechanism spring automatic reset structure dual spring.
Fig. 6 is the linkage structure schematic diagram of this bidirectional automatic gear shifting driving mechanism case, planetary pinion, sun gear etc.
In figure, 1, automatic transmission; 1a, driving gear; 1b, driving disc; 1c, case; 1d, connecting plate; 1e, planetary pinion; 1f, sun gear; 1g, transmission shaft; 1h, centrifugal-block; 1i, extension spring; 1j, hub splines; 2, differential mechanism; 3, housing; 4, the one-way element that advances; 4a, mounting plate; 4b, needle roller; 4c, unidirectional ring; 4c1, needle roller groove; 4d, unidirectional ring gear; 4e, base plate; 4f, ratchet; 4g, pin; 4h, torsion spring; 5, snap ring; 5a, dop; 6, electromagnet; 6a, push rod; 7, fixed tube; 7a, gear edge; 8, spring; 9, bearing pin; 9a, shoulder block; 10, spring one; 11, spring two; 12, bearing pin one; 12a, shoulder block one; 13, bearing pin two; 13a, shoulder block two; 14, protective housing; 15, gap bridge driving gear; 16, gap bridge driven gear.
Embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Embodiment one
As shown in Figure 1, this bidirectional automatic gear shifting driving mechanism comprises automatic transmission 1, differential mechanism 2, housing 3, the one-way element 4 that advances, snap ring 5, electromagnet 6, spring automatic reset structure, bearing pin 9, gap bridge driving gear 15 and gap bridge driven gear 16.
Automatic transmission 1, differential mechanism 2, gap bridge driving gear 15, gap bridge driven gear 16 and the one-way element 4 that advances are all positioned at housing 3, automatic transmission 1, differential mechanism 2 lay respectively at the two ends in housing 3, gap bridge driving gear 15 and gap bridge driven gear 16 are positioned at the middle of housing 3, and automatic transmission 1 is connected with differential mechanism 2 by gap bridge driving gear 15, gap bridge driven gear 16.
On housing 3, there is fixed hole, fixed hole place is fixed with spring automatic reset structure, in the present embodiment, spring automatic reset structure comprises fixed tube 7 and spring 8, bearing pin 9 is positioned at fixed tube 7, fixed tube 7 is inserted in fixed hole, be connected by drive fit again, also can be connected by welding, fixed tube 7 and housing 3 are connected mutually, on the madial wall of fixed tube 7, there is gear along 7a, on bearing pin 9, there is shoulder block 9a, spring 8 is enclosed within on bearing pin 9, and one end of spring 8 is resisted against gear along on 7a, the other end is resisted against on shoulder block 9a, spring 8 makes bearing pin 9 be positioned at stationary magazine creel under the effect of self elastic force, can not reach outside stationary magazine creel.Electromagnet 6 is fixed on the outside of housing 3, and (electromagnet 6 is prior art, road and bridge hardware market available) electric wire of electromagnet 6 is connected with the reversing switch of electro-tricycle, electric vehicle, electromagnet 6 overcoats have the protective housing 14 of being made up of plastic materials, in electromagnet 6, there is push rod 6a, push rod 6a is just to fixed tube 7, and push rod 6a can extend into the interior promotion bearing pin 9 of fixed tube 7 and move along fixed tube 7, and Compress Spring 8.In actual production, as shown in Figure 5, spring automatic reset structure can be made this structure, comprise fixed tube 7, spring 1 and spring 2 11, bearing pin 9 comprises bearing pin 1 and bearing pin 2 13, and bearing pin 1 and bearing pin 2 13 are all positioned at fixed tube 7, on the madial wall of fixed tube 7, there is gear along 7a, on bearing pin 1, there is shoulder block one 12a, on bearing pin 2 13, there are shoulder block two 13a, spring 1 is enclosed within on bearing pin 1, spring 2 11 is enclosed within on bearing pin 2 13, one end of spring 1 is resisted against gear along on 7a, the other end is resisted against on shoulder block one 12a, one end of spring 2 11 is resisted against on shoulder block one 12a, the other end is resisted against on shoulder block two 13a, this kind of spring automatic reset structure is applicable to having the electromagnet 6 of circuit board, can reduce electric current, can not generate heat, can not burn out.
As shown in Figure 1, automatic transmission 1, comprise transmission shaft 1g, driving gear 1a, driving disc 1b, case 1c and connecting plate 1d, one end of transmission shaft 1g is connected with connecting plate 1d, the other end stretches out outside housing 3 and is connected with electric machine main shaft, connecting plate 1d and case 1c are connected mutually, in the present embodiment, as shown in Figure 6, six planetary pinion 1e are installed in case 1c top, there is sun gear 1f in the middle of these six planetary pinion 1e, sun gear 1f is connected with the one-way element 4 that advances by hub splines 1j, the one-way element 4 that advances is enclosed within outside transmission shaft 1g, the bottom of planetary pinion 1e is fixed with the driving disc 1b with centrifugal-block 1h, centrifugal-block 1h is connected with extension spring 1i, hub splines 1j is enclosed within outside transmission shaft 1g, driving disc 1b is outside hub splines 1j is enclosed within transmission shaft 1g, driving disc 1b is connected with driving gear 1a by hub splines 1j, driving gear 1a is connected with gap bridge driving gear 15, gap bridge driving gear 15 drives gap bridge driven gear 16, gap bridge driven gear 16 connected with differentials 2, differential mechanism 2 is connected with motor rear axle semiaxis.
As shown in Figure 2, the one-way element 4 that advances comprises the mounting plate 4a assuming diamond in shape, two ends of mounting plate 4a long side direction are fixed on housing 3, thereby mounting plate 4a is fixed on housing 3, the center of mounting plate 4a has column through hole, in through hole, be provided with needle roller 4b and unidirectional ring 4c, unidirectional ring 4c is enclosed within hub splines 1j, outside transmission shaft 1g, between the circumferential outer side wall of unidirectional ring 4c and through-hole side wall, there is small gap, in the present embodiment, unidirectional five the needle roller groove 4c1 that have laterally in week that encircle 4c, in each needle roller groove 4c1, all there is a cylindrical needle roller 4b, needle roller 4b is corresponding one by one with the quantity of needle roller groove 4c1, in actual production, the quantity of needle roller groove 4c1 can be also four or six.The diameter of needle roller 4b is greater than needle roller groove 4c1 one end along unidirectional ring 4c height radially, be less than the needle roller groove 4c1 the other end along unidirectional ring 4c height radially, the curved shape in bottom of needle roller groove 4c1, facilitate needle roller 4b to slide along needle roller groove 4c1, in the time that needle roller 4b is rolled to the highly lower one end of needle roller groove 4c1, unidirectional ring 4c can be stuck, can not freely rotate, in the time that needle roller 4b is rolled to the highly higher the other end of needle roller groove 4c1, unidirectional ring 4c can not be stuck, and can freely rotate.Unidirectional ring 4c is upper is fixed with snap ring 5 by welding, the top of the circumferential outer side wall of snap ring 5 has dop 5a, in the present embodiment, the quantity of dop 5a is two and is symmetrical arranged, in actual production, or the quantity of dop 5a can be three four, and spaced set, and unidirectional ring 4c is enclosed within outside transmission shaft 1g.As shown in Figure 4, a sidewall of dop 5a, along the radially setting of snap ring 5, is a smooth plane, the curved shape of another sidewall and seamlessly transitting with the circumferential outer side wall of snap ring 5.
When work, when electro-tricycle, electric vehicle advance, in the time of motor low speed rotation, motor drives transmission shaft 1g by main shaft, transmission shaft 1g drives case 1c by connecting plate 1d, and case 1c drives driving disc 1b rotation after planetary pinion 1e slows down, and now the speed of driving disc 1b will be lower than the rotating speed of case 1c, driving disc 1b drives driving gear 1a rotation by hub splines 1j, exports by gap bridge driving gear 15, gap bridge driven gear 16, differential mechanism 2.In the time that this advances lower-speed state, electromagnet 6 is cold, under the effect of spring 8 elastic force, bearing pin 9 props up push rod 6a, push rod 6a is contracted in electromagnet 6, and bearing pin 9 is positioned at stationary magazine creel, and planetary pinion 1e can drive the one-way element 4 that advances, snap ring 5 to rotate by sun gear 1f.When electro-tricycle, electric vehicle advance, in the time of motor High Rotation Speed, motor drives transmission shaft 1g by main shaft, transmission shaft 1g drives case 1c by connecting plate 1d, because case 1c rotating speed is very fast, centrifugal-block 1h is opened and is connected mutually with case 1c, and the rotating speed of case 1c is directly passed to driving disc 1b, driving disc 1b drives driving gear 1a rotation by hub splines 1j, exports by gap bridge driving gear 15, gap bridge driven gear 16, differential mechanism 2.In the time that this advances fast state, electromagnet 6 is also cold, under the effect of spring 8 elastic force, bearing pin 9 props up push rod 6a, and push rod 6a is contracted in electromagnet 6, bearing pin 9 is positioned at stationary magazine creel, and the one-way element 4 that advances, snap ring 5 still can rotate, just the direction of rotation is contrary with the sense of rotation of case 1c, can not have influence on the transmission of automatic transmission 1, transmission shaft 1g can not be stuck, and can realize high-speed drive.In the time of reversing, motor reversal, when reversing, general speed is slower, and motor drives transmission shaft 1g, connecting plate 1d, cover cap, planetary pinion 1e, driving disc 1b, hub splines 1j, driving gear 1a, gap bridge driving gear 15, gap bridge driven gear 16 and differential mechanism 2 to export successively.In the time of reversing state, press reversing button, electromagnet 6 is switched on, and push rod 6a can extend in stationary magazine creel, overcome the elastic force of spring 8, bearing pin 9 is partly released in stationary magazine creel, and the bearing pin 9 of release can be met dop 5a, with snap ring 5 phase clampings, thereby snap ring 5 is stopped the rotation, the one-way element 4 that simultaneously makes to advance stops operating, and in static, realizes car-backing function.
Embodiment two
As Fig. 3, shown in Fig. 4, the present embodiment is basic identical with embodiment one structure and principle, different places are, the concrete structure of the one-way element 4 that advances in the present embodiment is different from embodiment one, in the present embodiment, the one-way element 4 that advances comprises unidirectional ring gear 4d and base plate 4e, unidirectional ring gear 4d is fixed on the edge of housing 3 madial walls, the inner side of unidirectional ring gear 4d has multiple unidirectional teeth groove, base plate 4e is disc-shaped, snap ring 5 is fixed on the center of base plate 4e, upper several the rotating ratchet 4f that is equidistantly provided with centered by snap ring 5 of base plate 4e, the curved shape of outer side wall of ratchet 4f, the center of ratchet 4f is connected with base plate 4e by pin 4g, one end of ratchet 4f is resisted against in the teeth groove of unidirectional ring gear 4d, the other end is connected with base plate 4e by torsion spring 4h, torsion spring 4h can rotate around pin 4g ratchet 4f, under the cooperation of ratchet 4f and unidirectional ring gear 4d, make the base plate 4e can only be along a direction rotation, advancing one-way element 4 can only be along a direction rotation.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendments or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although more used automatic transmission 1 herein, driving gear 1a, driving disc 1b, case 1c, connecting plate 1d, planetary pinion 1e, sun gear 1f, transmission shaft 1g, centrifugal-block 1h, extension spring 1i, hub splines 1j, differential mechanism 2, housing 3, one-way element 4 advances, mounting plate 4a, needle roller 4b, unidirectional ring 4c, needle roller groove 4c1, unidirectional ring gear 4d, base plate 4e, ratchet 4f, pin 4g, torsion spring 4h, snap ring 5, dop 5a, electromagnet 6, push rod 6a, fixed tube 7, gear is along 7a, spring 8, bearing pin 9, shoulder block 9a, spring 1, spring 2 11, bearing pin 1, shoulder block one 12a, bearing pin 2 13, shoulder block two 13a, protective housing, 14 gap bridge driving gears 15, gap bridge driven gear 16 terms such as grade, but do not get rid of the possibility that uses other term.Use these terms to be only used to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (10)
1. a bidirectional automatic gear shifting driving mechanism, comprise automatic transmission (1), differential mechanism (2) and housing (3), described automatic transmission (1) is all positioned at described housing (3) with differential mechanism (2) and both are connected, it is characterized in that, the upper cover of transmission shaft (1g) of described automatic transmission (1) has the one-way element of advancing (4), on described transmission shaft (1g), also cover has snap ring (5), described snap ring (5) is connected mutually with the one-way element that advances (4), on the circumferential outer side wall of described snap ring (5), there is dop (5a), on described housing (3), be fixed with the there is push rod electromagnet (6) of (6a), between described push rod (6a) and snap ring (5), be provided with bearing pin (9), and push rod (6a) can promote bearing pin (9) and make bearing pin (9) and the clamping of dop (5a) phase, between described push rod (6a) and snap ring (5), be also provided with the spring automatic reset structure that can make bearing pin (9) reset.
2. bidirectional automatic gear shifting driving mechanism according to claim 1, it is characterized in that, described spring automatic reset structure comprises fixed tube (7) and spring (8), described bearing pin (9) is positioned at fixed tube (7), on the madial wall of described fixed tube (7), there is gear along (7a), on described bearing pin (9), there is shoulder block (9a), described spring (8) is enclosed within on bearing pin (9), and it is upper along (7a) that one end of spring (8) is resisted against gear, and the other end is resisted against on shoulder block (9a).
3. bidirectional automatic gear shifting driving mechanism according to claim 1, it is characterized in that, described spring automatic reset structure comprises fixed tube (7), spring one (10) and spring two (11), described bearing pin (9) is positioned at fixed tube (7), described bearing pin (9) comprises bearing pin one (12) and bearing pin two (13), on the madial wall of described fixed tube (7), there is gear along (7a), on described bearing pin one (12), there is shoulder block one (12a), on described bearing pin two (13), there is shoulder block two (13a), described spring one (10) is enclosed within on bearing pin one (12), described spring two (11) is enclosed within on bearing pin two (13), one end of described spring one (10) is resisted against gear along on (7a), the other end is resisted against on shoulder block one (12a), one end of described spring two (11) is resisted against on shoulder block one (12a), the other end is resisted against on shoulder block two (13a).
4. according to the bidirectional automatic gear shifting driving mechanism described in claim 2 or 3, it is characterized in that, on described housing (3), have fixed hole, described fixed tube (7) is inserted in fixed hole fixed tube (7) is fixed in housing (3).
5. according to the bidirectional automatic gear shifting driving mechanism described in claim 1 or 2 or 3, it is characterized in that, described electromagnet (6) overcoat has protective housing (14).
6. according to the bidirectional automatic gear shifting driving mechanism described in claim 1 or 2 or 3, it is characterized in that, the described one-way element that advances (4) comprises mounting plate (4a), described mounting plate (4a) is fixed on housing (3), the center of described mounting plate (4a) has column through hole, in described through hole, be provided with needle roller (4b) and unidirectional ring (4c), there are laterally several needle roller grooves (4c1) week of described unidirectional ring (4c), described needle roller (4b) is positioned at described needle roller groove (4c1), and the diameter of described needle roller (4b) is greater than needle roller groove (4c1) one end along unidirectional ring (4c) height radially, be less than needle roller groove (4c1) the other end along unidirectional ring (4c) height radially, described snap ring (5) is fixed on unidirectional ring (4c), described dop (5a) is positioned at the circumferentially top of outer side wall of snap ring (5).
7. bidirectional automatic gear shifting driving mechanism according to claim 6, is characterized in that, the curved shape in bottom of described needle roller groove (4c1).
8. according to the bidirectional automatic gear shifting driving mechanism described in claim 1 or 2 or 3, it is characterized in that, the described one-way element that advances (4) comprises unidirectional ring gear (4d) and base plate (4e), described unidirectional ring gear (4d) is fixed in described housing (3), described snap ring (5) is fixed on the center of base plate (4e), described dop (5a) is positioned at the circumferentially top of outer side wall of snap ring (5), described base plate (4e) equal intervals is provided with several rotating ratchets (4f), the teeth groove that one end of described ratchet (4f) is positioned at described unidirectional ring gear (4d) makes to advance one-way element (4) can only be along a direction rotation.
9. bidirectional automatic gear shifting driving mechanism according to claim 8, it is characterized in that, the curved shape of outer side wall of described ratchet (4f), the center of described ratchet (4f) is connected with base plate (4e) by pin (4g), one end of described ratchet (4f) is resisted against in the teeth groove of described unidirectional ring gear (4d), the other end is connected with described base plate (4e) by torsion spring (4h), and described torsion spring (4h) can rotate around described pin (4g) described ratchet (4f).
10. according to the bidirectional automatic gear shifting driving mechanism described in claim 1 or 2 or 3, it is characterized in that, one sidewall of described dop (5a) is along the radially setting of snap ring (5), the curved shape of another sidewall and seamlessly transitting with the circumferential outer side wall of described snap ring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420209841.9U CN203796901U (en) | 2014-04-25 | 2014-04-25 | Bidirectional automatic speed-changing transmission mechanism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420209841.9U CN203796901U (en) | 2014-04-25 | 2014-04-25 | Bidirectional automatic speed-changing transmission mechanism |
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| CN203796901U true CN203796901U (en) | 2014-08-27 |
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| CN201420209841.9U Expired - Fee Related CN203796901U (en) | 2014-04-25 | 2014-04-25 | Bidirectional automatic speed-changing transmission mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482131A (en) * | 2014-12-03 | 2015-04-01 | 厦门跃众机电科技有限公司 | Gearbox of electric tricycle |
| CN107701664A (en) * | 2017-11-09 | 2018-02-16 | 屠申富 | The transmission mechanism of bi-directional variable speed motor |
-
2014
- 2014-04-25 CN CN201420209841.9U patent/CN203796901U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482131A (en) * | 2014-12-03 | 2015-04-01 | 厦门跃众机电科技有限公司 | Gearbox of electric tricycle |
| CN107701664A (en) * | 2017-11-09 | 2018-02-16 | 屠申富 | The transmission mechanism of bi-directional variable speed motor |
| CN107701664B (en) * | 2017-11-09 | 2023-12-01 | 玉环县东方汽车制动器厂 | Transmission mechanism of bidirectional variable speed motor |
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