A kind of two-way transmission mechanism
Technical field
The present invention relates to a kind of motion, more particularly, to a kind of two-way transmission mechanism.
Background technology
Drive mechanism is a kind of mechanism for transmitting power, the mode of power that power unit can be input into, direction,
Speed or size are changed, and the power for then changing again passes to performance element, so as to reach the skill of designer's needs
Art effect, common drive mechanism include gear drive, Chain conveyer, V belt translation and Worm Wheel System, so drive mechanism
Typically link with power unit and performance element.
Power unit in some mechanisms needs for two kinds of athletic performances to pass to drive mechanism, then by drive mechanism
Two performance element actions are driven respectively, and for example, the rotating forward and reversion of motor shaft pass through drive mechanism band when motor shaft is rotated forward
Dynamic first performance element action, but the second performance element does not occur action, but motor shaft when inverting by drive mechanism drive the
Two performance element actions, but there is no action in the first performance element;Due to drive mechanism typically with power unit and perform list
Unit's linkage, so when Bidirectional driving is realized, the first performance element can be caused to interfere with the second performance element.
Application number 201320644475.5 announce a kind of two-way clutch drive mechanism, including power transmission shaft, positive rotating disk with
And counter gear, the power transmission shaft two ends are movably arranged on support, and the positive rotating disk and counter gear are slidingly connected respectively
On power transmission shaft, the first driven face gear is fixed with the positive rotating disk, second is fixed with the counter gear driven
Face gear, is fixed with the first active face gear for being engaged with the first driven face gear and with the power transmission shaft
The medial extremity of the second active face gear that two driven face gears are engaged, the positive rotating disk and counter gear is respectively by two
The outboard end of the movable steel ball positioning in individual steel ball limiting plate, the positive rotating disk and counter gear is respectively by two back-moving springs
Withstand;A kind of two-way clutch drive mechanism disclosed in above-mentioned documents, can realize by the principle similar to clutch, lead to
Cross the engagement of the first driven end face and positive rotating disk and separate, the engagement of the second driven face gear and counter gear with separate,
To realize above-mentioned technical purpose, but structure is complex, realize it is two-way do not interfere transmission when, in addition it is also necessary to first control two from
The engagement of dynamic face gear and positive gear with separate, so cumbersome in operation.
In view of drawbacks described above, creator of the present invention passes through prolonged research and practice obtains this creation finally.
The content of the invention
It is an object of the present invention to provide a kind of two-way transmission mechanism, to overcome above-mentioned technological deficiency.
For achieving the above object, the technical solution used in the present invention is to provide a kind of two-way transmission mechanism first, be used for
The positive counter-movement of power unit is passed in the case where the first performance element is non-interference with the second performance element corresponding
First performance element and the second performance element, including:
Initiative part, which is connected with the power unit, and the positive movement that produced by the power unit and reversely
Motion drives;
First follower, which is connected with first performance element;
Second follower, which is connected with second performance element;
First unidirectional joint portion, which is arranged between the initiative part and first follower, when the initiative part is passed
Described in when passing the positive movement, the initiative part is connected by the first unidirectional joint portion with first follower;
Second unidirectional joint portion, which is arranged between the initiative part and second follower, when the initiative part is passed
Described in when passing the adverse movement, the initiative part is connected by the second unidirectional joint portion with second follower.
Preferably, the initiative part is a turning collar;
First follower is a lubrication groove, and the lubrication groove is arranged concentrically in turning collar;
Second follower is an outer ring, and the outer ring is arranged concentrically on outside turning collar.
Preferably, the first unidirectional joint portion includes:
First ratchet group;
First ratchet, its button are ridden in the first ratchet group;
First rotational pin, which is arranged on first ratchet;
The second unidirectional joint portion includes:
Second ratchet group;
Second ratchet, second ratchet are snapped in the second ratchet group;
Second rotational pin, which is arranged on the second ratchet.
Preferably, the first ratchet group is arranged around the periphery of the lubrication groove, the second ratchet group is around the rotation
The periphery arrangement of circle, first ratchet are rotatably connected on the turning collar by first rotational pin, and described second
Ratchet is rotatably connected on the outer ring by second rotational pin.
Preferably, the first ratchet group is arranged around the inner headed face of the turning collar, the second ratchet group is around described turn
The periphery arrangement of moving-coil, first ratchet are rotatably connected in the lubrication groove by first rotational pin, and described second
Ratchet is rotatably connected on the outer ring by second rotational pin.
Preferably, the first unidirectional joint portion includes:
Shape inside the first wedge-shaped indentation being arranged on the periphery of lubrication groove, first wedge-shaped indentation and the turning collar
Into there is the first wedge gap;
First rolls post, and which is arranged in the first wedge gap, and the inner headed face along the turning collar is rolled;
First spring spindle, which is arranged in the first wedge-shaped indentation, and one end is connected with the lubrication groove and the other end is contradicted
Described first rolls on post;
The second unidirectional joint portion includes:
Shape inside the second wedge-shaped indentation being arranged on the periphery of turning collar, second wedge-shaped indentation and the outer ring
Into there is the second wedge gap;
Second rolls post, and which is arranged in the second wedge gap, and the inner headed face along the outer ring is rolled;
Second spring push rod, which is arranged in the second wedge-shaped indentation, and one end is connected with the turning collar and the other end is contradicted
Roll on post described second.
Preferably, belt pulley is axially connected with the end face of the turning collar, the belt pulley is connected with power unit band.
Preferably, spring bearing is provided between the turning collar and outer ring, between turning collar and lubrication groove.
Compared with the prior art the beneficial effects of the present invention is:By way of unidirectional connection drives, perform first
The positive counter-movement of power unit is passed to into corresponding first in the case that unit is non-interference with the second performance element and performs list
Unit and the second performance element, and simple structure, it is without the need for controlling clutch manually, very easy to use.
Description of the drawings
Schematic diagrams of the Fig. 1 for a kind of two-way transmission mechanism in embodiment one;
Schematic diagrams of the Fig. 2 for a kind of two-way transmission mechanism in embodiment two;
Fig. 3 is the A-A sectional views shown in Fig. 2;
Schematic diagrams of the Fig. 4 for a kind of two-way transmission mechanism in embodiment three.
Fig. 5 is the schematic diagram that the turning collar 6 of Fig. 1 is designated as initiative part 1.
In figure:1st, initiative part;2nd, the first follower;3rd, the second follower;4th, the first unidirectional joint portion;5th, the second unidirectional knot
Conjunction portion;6th, turning collar;7th, lubrication groove;8th, outer ring;9th, the first ratchet group;10th, the first ratchet;11st, the first rotational pin;12nd, the second spine
Tooth group;13rd, the second ratchet;14th, the second rotational pin;15th, the first wedge gap;16th, first roll post;17th, the first spring spindle;
18th, the second wedge gap;19th, second roll post;20th, second spring push rod;21st, belt pulley;22nd, spring bearing.
Specific embodiment
It is below in conjunction with accompanying drawing, above-mentioned to the present invention to be described in more detail with other technical characteristic and advantage.
As shown in figure 1, in embodiment one, a kind of two-way transmission mechanism can be in the situation without the need for manually manipulating
Under, the first performance element and the second performance element are given by the bi-directional of power unit, and do not result in the first performance element
Interfere in motion with the second performance element, the two-way transmission mechanism includes that initiative part 1, the first follower 2, second are driven
Portion 3, the first unidirectional joint portion 4 and the second unidirectional joint portion 5, initiative part 1 and power unit linkage, and power can be received
The positive movement of unit and adverse movement, the first follower 2 and the linkage of the first performance element, the second follower 3 are held with second
Row unit links, and the first unidirectional joint portion 4 and the second unidirectional joint portion 5 only when by Unidirectional acting force combine and pass
Graduating power, then produces skidding, such as click structure when the active force by other direction;When power unit drives actively
When positive movement is done in portion 1, the first unidirectional joint portion 4 is subject to initiative part 1 to do the dynamic action of positive movement, by initiative part 1 and the
One follower 2 combines, so that initiative part 1 drives the first follower 2 to move, and drives the first performance element to move, this
When, combination is not played in the second unidirectional joint portion 5, and initiative part 1 is skidded with the second follower 3;When power unit drives initiative part 1
When doing adverse movement, heterodromous dynamic action is done by initiative part 1 in the second unidirectional joint portion 5, by initiative part 1 and second from
Dynamic portion 3 combines, so that initiative part 1 drives the second follower 3 to move, and drives the second performance element to move, now, the
Combination is not played in one unidirectional joint portion 4, and initiative part 1 is skidded with the first follower 2;The side that the design is driven by unidirectional connection
The positive counter-movement of power unit is passed to corresponding by formula in the case where the first performance element is non-interference with the second performance element
The first performance element and the second performance element, and simple structure is without the need for control clutch manually, very easy to use.
Concrete structure is associated, and as shown in Figure 1, Figure 2, Figure 3 shows, initiative part 1 is a turning collar 6, and the first follower 2 is one
Lubrication groove 7, the second follower 3 is an outer ring 8, and lubrication groove 7 is arranged concentrically in turning collar 6, and turning collar 6 is arranged concentrically on outer ring
In 8, the first unidirectional joint portion 4 is arranged between the periphery of inner headed face and lubrication groove 7 of turning collar 6, and the second unidirectional joint portion 5 sets
Put between the periphery of turning collar 6 and the inner headed face of outer ring 8,6 side of turning collar is belt pulley 21, and power unit can be one
Motor, is connected to another belt pulley on motor, between two belt pulleys band connection, so as to drive turning collar 6 to rotate, when turning collar 6 just
When rotating, turning collar 6 is linked together by the first unidirectional joint portion 4 with lubrication groove 7, so that turning collar 6 drives lubrication groove 7
Rotate, and turning collar 6 is skidded with outer ring 8 and separated, when turning collar 6 rotates backward rotation, the second unidirectional joint portion 5 will rotate
Circle 6 is linked together with outer ring 8, so that turning collar 6 drives outer ring 8 to rotate, and turning collar 6 is skidded with lubrication groove 7 and separated;Should
Design is arranged concentrically the part of whole mechanism, makes whole mechanism compacter.
As shown in Fig. 2 in embodiment two, the first unidirectional joint portion 4 be a first ratchet group 9 of circle, the first rotational pin 11,
The first ratchet 10 being buckled in the first ratchet group 9, the second unidirectional joint portion 5 be a second ratchet group 12 of circle, the second rotational pin 14,
The second ratchet 13 being buckled in the second ratchet group 12, wherein, the first ratchet group 9 is counterclockwise around the inner headed face of turning collar 6
Arrangement, the second ratchet group 12 are arranged around the periphery in the direction of the clock around turning collar 6, and the first ratchet 10 passes through the first rotational pin
11 are rotatably connected in lubrication groove 7, and contradict in the first ratchet group 9, and the second ratchet 13 rotates connection by the second rotational pin 14
On outer ring 8, and contradict in the second ratchet group 12.
It is positive movement in a counterclockwise direction, clockwise for during adverse movement;When power unit drives turning collar 6,
And when turning collar 6 is rotated in the counterclockwise direction, the first ratchet 10 is engaged with the first ratchet group 9, turning collar 6 is connected with lubrication groove 7
Connect, so that turning collar 6 drives lubrication groove 7 to rotate counterclockwise, and the second ratchet 13 skids with the second ratchet group 12, outer ring 8 with turn
Moving-coil 6 is separated, and does not follow turning collar 6 to move;When power unit drives turning collar 6, and when making rotationally clockwise, the second spine
Pawl 13 is engaged with the second ratchet group 12, turning collar 6 is connected with outer ring 8, so that turning collar 6 drives outer ring 8 to rotate clockwise,
And first ratchet 10 skid with the first ratchet group 9, lubrication groove 7 is separated with turning collar 6, does not follow turning collar 6 to move;This is designed to
Make turning collar 6 drive when rotating counterclockwise lubrication groove 7 to rotate, drive outer ring 8 to rotate when rotating clockwise, and no matter turn clockwise
When moving and rotating counterclockwise, lubrication groove 7 and 8 movement interference of outer ring are not resulted in.
As shown in figure 3, in embodiment one and embodiment two, as lubrication groove 7, turning collar 6 and outer ring 8 are same successively
The heart is arranged, so need spring bearing 22 is installed between lubrication groove 7 and turning collar 6, between turning collar 6 and outer ring 8, for supporting
Therebetween;This is designed to radial-play between guarantee lubrication groove 7 and turning collar 6, between turning collar 6 and outer ring 8,
And the rotation between the rotation between without prejudice to lubrication groove 7 and turning collar 6 and turning collar 6 and outer ring 8.
As shown in figure 4, in embodiment three, the first unidirectional joint portion 4 includes first be arranged on the periphery of lubrication groove 7
Wedge-shaped indentation, first roll post 16 and the first spring spindle 17, and the first wedge-shaped indentation is internally formed one first with turning collar 6
Wedge gap 15, one end space of the first wedge gap 15 is larger and other end space is less, and first to roll post 16 axially arranged
In the first wedge gap 15, the first spring spindle 17 has the elastic force of the axial direction of very little, and which is arranged in the first wedge-shaped indentation,
One end is connected with lubrication groove 7 and the other end is contradicted and rolled on post 16 first, and the first rolling post 16 is pushed up to the first wedge gap
The less one end of 15 voids;The second wedge-shaped indentation that second unidirectional joint portion 5 includes being arranged on the periphery of turning collar 6,
Second rolls post 19 and second spring push rod 20, and the second wedge-shaped indentation is internally formed the second wedge gap 18 with turning collar 6, the
One end space of two wedge gaps 18 is larger and other end space is less, and the second rolling post 19 is axially disposed within the second wedge gap
In 18, second spring push rod 20 has the elastic force of the axial direction of very little, and which is arranged in the second wedge-shaped indentation, and one end is connected with lubrication groove 7
Connect and the other end is contradicted and rolled on post 19 second, and the second rolling post 19 is pushed up less to 18 void of the second wedge gap
One end.
It is positive movement in a counterclockwise direction, clockwise for during adverse movement;When power unit drives turning collar 6,
And when turning collar 6 is rotated in the counterclockwise direction, first rolls the frictional force and first that post 16 is subject to the inner headed face of turning collar 6
Under the elastic force effect of spring spindle 17, roll to the less one end of 15 void of the first wedge gap, and be stuck in the inside, so as to logical
Cross frictional force turning collar 6 is stuck with lubrication groove 7, lubrication groove 7 is rotated counterclockwise with turning collar 6, second rolls post 19
By the frictional force effect of the inner headed face of outer ring 8, overcome the elastic force of second spring push rod 20, and roll in the second wedge gap 18
The larger one end in space, and also as the inner headed face rolling of outer ring 8, now outer ring 8 is separated with turning collar 6;When power unit drives
Dynamic turning collar 6, and when being rotated in the clockwise direction turning collar 6, second rolls the frictional force that post 19 is subject to the inner headed face of outer ring 8
And under the elastic force effect of second spring push rod 20, roll to the less one end of 18 void of the second wedge gap, and in being stuck in
Turning collar 6 is stuck with outer ring 8 by face so as to pass through frictional force, outer ring 8 is rotated clockwise with turning collar 6, and first
The frictional force effect that post 16 is subject to the inner headed face of turning collar 6 is rolled, the elastic force of the first spring spindle 17 is overcome, and is rolled to first wedge
The larger one end of 15 void of shape gap, and also as the inner headed face rolling of turning collar 6, now lubrication groove 7 is separated with turning collar 6;
This is designed to make turning collar 6 drive lubrication groove 7 to rotate when rotating counterclockwise, and drives outer ring 8 to rotate when rotating clockwise, and nothing
During by rotating clockwise and rotate counterclockwise, lubrication groove 7 and 8 movement interference of outer ring are not resulted in.
Presently preferred embodiments of the present invention is the foregoing is only, is merely illustrative for the purpose of the present invention, and it is non-limiting
's.Those skilled in the art understanding, can carry out many changes to which in the spirit and scope limited by the claims in the present invention,
Modification, in addition it is equivalent, but fall within protection scope of the present invention.