CN105041815A - Continuously variable transmission device - Google Patents
Continuously variable transmission device Download PDFInfo
- Publication number
- CN105041815A CN105041815A CN201510119233.8A CN201510119233A CN105041815A CN 105041815 A CN105041815 A CN 105041815A CN 201510119233 A CN201510119233 A CN 201510119233A CN 105041815 A CN105041815 A CN 105041815A
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- China
- Prior art keywords
- connecting bar
- connection pin
- swing
- output shaft
- swing connecting
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H21/00—Gearings comprising primarily only links or levers, with or without slides
- F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
- F16H21/12—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for conveying rotary motion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
- B60K17/08—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H21/00—Gearings comprising primarily only links or levers, with or without slides
- F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
- F16H21/16—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for interconverting rotary motion and reciprocating motion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H21/00—Gearings comprising primarily only links or levers, with or without slides
- F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
- F16H21/16—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for interconverting rotary motion and reciprocating motion
- F16H21/18—Crank gearings; Eccentric gearings
- F16H21/20—Crank gearings; Eccentric gearings with adjustment of throw
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H35/00—Gearings or mechanisms with other special functional features
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Transmission Devices (AREA)
Abstract
The invention provides a continuously variable transmission device with a four-rod structure type crankshaft to withstand an enlarged effective face of pressure from a connection pin. The continuously variable transmission device (1) also has an input shaft (2), an output shaft (3), a rotatable half-diameter adjusting structure (4), a connection rod (15), and a swing connection rod (18). The connection pin (19) enables the end part of the connection rod (15) to be connected to the swing end part (18a) of the swing connection rod (18) in a swing manner; a device to prevent the connection pin (19) from coming off comprises a groove part (19a) arranged on the external face of the connection pin (19), a fall-out prevention pin (21), a hole part (15c) arranged at the circular output part (15b) at a corresponding position of the groove part (19a) and abutting against the inner surface of the groove part (19a).
Description
Technical field
The present invention relates to the stepless speed variator of the fourbar linkage type using connecting rod.
Background technique
In the past, propose a kind of stepless speed variator, this stepless speed variator has: input shaft, output shaft, itself and input shaft configure abreast, connecting rod, it has turning radius controlling mechanism, swing connecting bar and connecting rod, described turning radius controlling mechanism comprises rotary part rotatable centered by the rotating center axis of input shaft, and freely can regulate the turning radius of rotary part, described swing connecting bar rotatably axle is supported on output shaft and is provided with the swing end of ring-type, described connecting rod comprise the input side end that is rotatably connected with rotary part and with the outlet side end swinging the ring-type that end links, the rotary motion of input shaft is converted to the oscillating motion of swing connecting bar by described connecting rod, single direction rotation stops mechanism, swing connecting bar will be fixed relative to output shaft to during a sideway swivel relative to output shaft centered by the rotating center axis of output shaft in swing connecting bar by it, when swing connecting bar will rotate to opposite side, swing connecting bar is dallied relative to output shaft, and cylindric or cylindric connection pin, the outlet side end swinging end and connecting rod is run through in its rotating center axis direction along output shaft, and swing end is connected to can relatively rotate with outlet side end, this stepless speed variator makes gear ratio change (for example, referring to patent documentation 1) by making the turning radius of rotary part change.
In the stepless speed variator formed like this, in the hole by the outlet side end in the hole of swing end and the ring-type of connecting rod of connection pin being inserted the ring-type of swing connecting bar, they can be rotated relatively.
As for keeping this connection pin and adeciduate structure, consider there is following structure: make the length of the axial direction of connection pin shorter than the length in the hole of the swing end of swing connecting bar or the outlet side end of connecting rod, the inner peripheral surface in this hole arranges circle-shaped groove, configure the Drop-proof stop member of ring-shaped member as connection pin of C-shaped in this groove, and this ring-shaped member is abutted with the end face of connection pin.
According to this structure, the outlet side end of connecting rod can be made rotatably to link with the swing end of swing connecting bar, and, easily can carry out the link between connecting rod and swing connecting bar and releasing thereof, therefore, be suitable for the making of stepless speed variator.
Existing patent documentation
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2012-251613 publication
Summary of the invention
But, when utilizing above-mentioned structure to prevent connection pin from coming off, owing to ring-shaped member must be configured to abut with the end face of connection pin, therefore, connection pin must be made to shorten the space for configuring ring-shaped member and form the amount in space of the groove for embedding this ring-shaped member.
Therefore, compared with not configuring the structure of ring-shaped member, the area of contact between the inner peripheral surface in the side face of connection pin and the hole of swing end diminishes.That is, when making swing connecting bar swing, following problem is produced: the whole inner peripheral surface in the hole of the swing end of the outlet side end of connecting rod or swing connecting bar can not be used as pressurized significant surface.
The present invention completes in view of the above circumstances, its object is to realize following structure: can, in the stepless speed variator of above-mentioned fourbar linkage type, the pressurized significant surface born from the pressure of connection pin be increased.
The present invention is a kind of stepless speed variator, and described stepless speed variator has: input shaft, output shaft, itself and described input shaft configure abreast, connecting rod, it has turning radius controlling mechanism, swing connecting bar and connecting rod, described turning radius controlling mechanism comprises rotary part rotatable centered by the rotating center axis of described input shaft, and freely can regulate the turning radius of described rotary part, described swing connecting bar rotatably axle is supported on described output shaft and is provided with the swing end of ring-type, the outlet side end of ring-type that described connecting rod comprises the input side end that is rotatably connected with described rotary part and links with described swing end, the rotary motion of described input shaft is converted to the oscillating motion of described swing connecting bar by described connecting rod, single direction rotation stops mechanism, described swing connecting bar will be fixed relative to described output shaft to during a sideway swivel relative to described output shaft centered by the rotating center axis of described output shaft in described swing connecting bar by it, when described swing connecting bar will rotate to opposite side, described swing connecting bar is dallied relative to described output shaft, and cylindric or cylindric connection pin, the described swing end of described swing connecting bar and the described outlet side end of described connecting rod are run through in its rotating center axis direction along described output shaft, and described swing end is connected to can relatively rotate with described outlet side end, this stepless speed variator makes gear ratio change by making the turning radius of described rotary part change, described stepless speed variator has connection pin escapement, on the axial direction that this connection pin escapement is limited in described connection pin, described connection pin moves relative to the described outlet side end of described connecting rod, described connection pin escapement is formed by with lower part: groove portion, it is arranged at the outer circumferential face of described connection pin in the mode extended along the direction orthogonal with the axial direction of described connection pin, hole portion, it is arranged at the described outlet side end of described connecting rod in the mode that the position corresponding with described groove portion on the axial direction of described connection pin extends along the direction orthogonal with the axial direction of described connection pin, and locking pin, it is inserted in the portion of described hole, and described locking pin abuts with the internal surface in described groove portion being inserted under the state in the portion of described hole.
In connection pin escapement of the present invention, the part being arranged at the locking pin in the hole portion of the outlet side end of connecting rod by making insertion abuts with the internal surface in groove portion of the outer circumferential face being arranged at connection pin, and prevents connection pin action in the axial direction thereof (coming off).
Therefore, the present invention does not need to use the situation that must be configured to the ring-shaped member abutted with the end face of connection pin such as connection pin escapement, makes connection pin shortening for configuring the space of ring-shaped member and formation for embedding the amount in the space in the groove portion of this ring-shaped member.
Therefore, according to the present invention, when making swing connecting bar swing, the roughly whole inner peripheral surface in the hole of the swing end of the outlet side end of connecting rod or swing connecting bar can be used as pressurized significant surface.
Further, owing to being not the structure configuring the parts of Drop-proof in the mode abutted with the end face of connection pin, but make connection pin and the locking structure of 1 locking pin, therefore, use the parts of 1 Drop-proof.Thereby, it is possible to realize the simplification of connection pin escapement.
And, in stepless speed variator of the present invention, preferably, described swing connecting bar has annulus, described output shaft is configured in the inner circumferential side of this annulus, the outer circumferential face of this annulus is provided with described swing end, even if when described locking pin to move to described locking pin one end along described hole portion abuts with the outer circumferential face of described annulus, described locking pin also abuts with the internal surface in described groove portion.
Thus, even if when the angle of oscillation of swing connecting bar becomes maximum, when locking pin is along the movement of hole portion, locking pin also abuts with the outer circumferential face of the annulus of swing connecting bar and can not come off, further, even if in this case, the state that locking pin abuts with the internal surface in groove portion can also be maintained.Its result is, reliably limits connection pin in the situation of its axial direction relative to connecting rod movement.
And, in stepless speed variator of the present invention, preferably, when described swing connecting bar will rotate away from the mode of described input shaft with described swing end centered by the rotating center axis of described output shaft, described single direction rotation stops mechanism described swing connecting bar to be fixed relative to described output shaft, when described swing connecting bar will rotate close to the mode of described input shaft with described swing end, described single direction rotation stops mechanism that described swing connecting bar is dallied relative to described output shaft, described hole portion is arranged on center than described connection pin from the position away from described input shaft.
Or, preferably, when described swing connecting bar will rotate close to the mode of described input shaft with described swing end centered by the rotating center axis of described output shaft, described single direction rotation stops mechanism described swing connecting bar to be fixed relative to described output shaft, when described swing connecting bar will rotate away from the mode of described input shaft with described swing end, described single direction rotation stops mechanism that described swing connecting bar is dallied relative to described output shaft, and described hole portion is arranged on center than described connection pin from the position close to described input shaft.
Thus, form the position in hole portion owing to being positioned at the position of the relatively low pressure of generation, even if therefore form hole portion, also can suppress the reduction of the durability of connecting rod.
Accompanying drawing explanation
Fig. 1 is the sectional view of the mode of execution that stepless speed variator of the present invention is shown.
Fig. 2 is the explanatory drawing that the turning radius controlling mechanism of present embodiment, connecting rod and swing connecting bar are shown from axial direction.
Fig. 3 A to Fig. 3 D is the explanatory drawing that the change of the offset of turning radius controlling mechanism to present embodiment is described, Fig. 3 A illustrates the situation of turning radius " maximum ", Fig. 3 B illustrate turning radius be " in " situation, Fig. 3 C illustrates that turning radius is the situation of " little ", and Fig. 3 D illustrates that turning radius is the situation of " 0 ".
Fig. 4 A to Fig. 4 C is the explanatory drawing of the relation of the change of offset of the turning radius controlling mechanism that present embodiment is shown and the angle of oscillation θ 2 of the oscillating motion of swing connecting bar, the angle of oscillation of the oscillating motion of swing connecting bar when Fig. 4 A illustrates that offset is maximum, the angle of oscillation of the oscillating motion of swing connecting bar when Fig. 4 B illustrates that offset is middle, the angle of oscillation of the oscillating motion of swing connecting bar time Fig. 4 C illustrates that offset is little.
Fig. 5 is the sectional view along the V-V line in Fig. 2.
Fig. 6 is the sectional view along the VI-VI line in Fig. 5.
Fig. 7 is the sectional view that the state that there occurs change from the state of Fig. 6 is shown.
Fig. 8 A to Fig. 8 B is the sectional view of connection pin escapement when illustrating that the pendulum angle of the swing connecting bar of present embodiment is maximum from axial direction, connection pin escapement when Fig. 8 A illustrates that swing connecting bar swings to the bottom dead-centre from axial direction, connection pin escapement when Fig. 8 B illustrates that swing connecting bar swings to inner dead centre from axial direction.
Label declaration
1: stepless speed variator; 2: input shaft; 2a: incision hole; 3: output shaft; 4: turning radius controlling mechanism; 5: cam disk; 6: rotating disc (rotary part); 6a: accepting hole; 6b: internal tooth; 7: pinion shaft; 7a: external tooth; 8: differential attachment (planetary gears); 9: sun gear; 10: the 1 gear rings; 11: the 2 gear rings; 12: band ladder small gear; 12a: large-diameter portion; 12b: minor diameter part; 13: planet carrier; 14: driving source (motor); 14a: running shaft; 15: connecting rod; 15a: input side annulus (input side end); 15b: outlet side annulus (outlet side end); 15c: hole portion (connection pin escapement); 16: roller bearing; 17: overrunning clutch (single direction rotation stops mechanism); 18: swing connecting bar; 18a: swing end; 18b: tab; 18c: through hole; 18d: groove; 18e: annulus; 18f: outer circumferential face; 19: connection pin; 19a: groove portion (connection pin escapement); 20: connecting rod; 21: locking pin (connection pin escapement); P1: rotating center axis; P2: the central point of cam disk; P3: the central point of rotating disc; The distance of Ra:P1 and P2; The distance of Rb:P2 and P3; R1: offset (distance of P1 and P3); θ 2: hunting range.
Embodiment
Below, the stepless speed variator of embodiments of the present invention is described.
See figures.1.and.2, the stepless speed variator 1 of present embodiment has: the input shaft 2 of hollow, and it rotates centered by rotating center axis P1 by bearing from the rotating power omitting the vehicle driving source such as the illustrated motor as internal-combustion engine or motor; Output shaft 3, itself and input shaft 2 configure abreast, via driving wheel (diagram is omitted) transmitting rotary power to vehicle such as the differential gear outside figure and transmission shaft; And 6 turning radius controlling mechanisms 4, they are arranged on input shaft 2.
Each turning radius controlling mechanism 4 is made up of cam disk 5 and rotating disc 6 (rotary part).Cam disk 5 is discoid, and it is with eccentric relative to rotating center axis P1 and be 1 group with 2 with the mode that input shaft 2 rotates integrally respectively on input shaft 2 and arrange.The cam disk 5 of each 1 group is set to respective phase 60 degree, and is configured to circumference one circle that utilizes 6 groups of cam disks 5 around input shaft 2.Further, discoid rotating disc 6 is rotatably coated at the cam disk 5 of each 1 group prejudicially, and rotating disc 6 has the accepting hole 6a of collecting cam disk 5.
The central point of cam disk 5 is set to P2, the central point of rotating disc 6 is set to P3, rotating disc 6 is eccentric relative to cam disk 5, and makes the distance Rb between the distance Ra isocenter P2 between rotating center axis P1 and center point P 2 and center point P 3 identical.
Be provided with internal tooth 6b in the accepting hole 6a of rotating disc 6, this internal tooth 6b is between the cam disk 5 of 1 group.Input shaft 2 is formed with incision hole 2a, and this incision hole 2a between the cam disk 5 of 1 group, and is communicated with inner peripheral surface and outer circumferential face at the position opposed with the eccentric direction of cam disk 5.
In the input shaft 2 of hollow, relatively with input shaft 2 be rotatably configured with pinion shaft 7, this pinion shaft 7 is with input shaft 2 concentric arrangement and on the position corresponding with rotating disc 6, have external tooth 7a.The external tooth 7a of pinion shaft 7 engages with the internal tooth 6b of rotating disc 6 via the incision hole 2a of input shaft 2.
Differential attachment 8 is connected with pinion shaft 7.Differential attachment 8 is made up of planetary gears, and has: sun gear 9; The 1st gear ring 10 linked with input shaft 2; The 2nd gear ring 11 linked with pinion shaft 7; And by the supporting of band ladder small gear 12 axle for can rotation and the planet carrier 13 that can revolve round the sun, wherein, described band ladder small gear 12 be made up of the large-diameter portion 12a engaged with sun gear 9 and the 1st gear ring 10 and the minor diameter part 12b that engages with the 2nd gear ring 11.
Running shaft 14a and the sun gear 9 of the driving source 14 be made up of the motor of pinion shaft 7 link.When making the rotational speed of driving source 14 identical with the rotational speed of input shaft 2, sun gear 9 and the 1st gear ring 10 rotate with same speed, these 4 key elements of sun gear 9, the 1st gear ring 10, the 2nd gear ring 11 and planet carrier 13 become the lock state that can not relatively rotate, and the pinion shaft 7 and the input shaft 2 that link with the 2nd gear ring 11 rotate with same speed.
When making the rotational speed of driving source 14 slower than the rotational speed of input shaft 2, if the rotating speed of sun gear 9 is Ns, the rotating speed of the 1st gear ring 10 is Nr1, when the gear ratio (number of teeth of the number of teeth/sun gear 9 of the 1st gear ring 10) of sun gear 9 and the 1st gear ring 10 is for j, the rotating speed of planet carrier 13 becomes (jNr1+Ns)/(j+1).And, when setting the gear ratio of sun gear 9 and the 2nd gear ring 11 ((number of teeth of the number of teeth/sun gear 9 of the 2nd gear ring 11) × (being with the number of teeth of the number of teeth/minor diameter part 12b of the large-diameter portion 12a of ladder small gear 12)) as k, the rotating speed of the 2nd gear ring 11 becomes { j (k+1) Nr1+ (k-j) Ns}/{ k (j+1) }.
When the rotational speed of the input shaft 2 being fixed with cam disk 5 is identical with the rotational speed of pinion shaft 7, rotating disc 6 and cam disk 5 together rotate integrally.When the rotational speed of input shaft 2 and the rotational speed of pinion shaft 7 exist poor, rotating disc 6 rotates at the periphery of cam disk 5 centered by the center point P 2 of cam disk 5.
As shown in Figure 2, because rotating disc 6 is eccentric relative to cam disk 5, and distance Ra is identical with distance Rb, therefore, the center point P 3 of rotating disc 6 can be made to be positioned on the axis identical with rotating center axis P1, make the distance between rotating center axis P1 and center point P 3, namely offset R1 is " 0 ".
One end of connecting rod 15 has the input side annulus 15a (input side end) in large footpath, the other end has the diameter outlet side annulus 15b (outlet side end) less than the diameter of input side annulus 15a, and the input side annulus 15a of this connecting rod 15 is rotatably coated at the periphery of rotating disc 6 via roller bearing 16.6 swing connecting bar 18 are arranged on output shaft 3 with connecting rod 15 accordingly via stoping the overrunning clutch 17 (single direction rotation stops mechanism) of mechanism as single direction rotation.
Swing connecting bar 18 has: annulus 18e, and it is configured with output shaft 3 in inner circumferential side; And swinging end 18a, it is arranged on the top of annulus 18e, and links with the outlet side annulus 15b of connecting rod 15.Swing end 18a is provided with a pair outstanding tab 18b, and tab 18b is axially clamping outlet side annulus 15b.A pair tab 18b is equipped with the through hole 18c corresponding with the internal diameter of outlet side annulus 15b.Columned connection pin 19 is inserted with in through hole 18c and outlet side annulus 15b.Thus, connecting rod 15 and swing connecting bar 18 link.In addition, connection pin 19 is not limited to cylindric, also can be formed by cylindrical shape.Here, cylindrical shape is included in its periphery and forms circle, and within it week forms circular or polygonal shape.
Fig. 3 A to Fig. 3 D illustrates the position relationship between pinion shaft 7 under the state that the offset R1 of turning radius controlling mechanism 4 is changed and rotating disc 6.Fig. 3 A illustrates and makes offset R1 be the state of " maximum ", and pinion shaft 7 and rotating disc 6 are positioned at and make the center point P 2 of rotating center axis P1, cam disk 5 and the center point P 3 of rotating disc 6 arrange position point-blank.Gear ratio i is now minimum.
Fig. 3 B illustrate make offset R1 be less than Fig. 3 A " in " state, Fig. 3 C illustrates and makes offset R1 be the state of " little " also less than Fig. 3 B.Gear ratio i become in figure 3b larger than the gear ratio i of Fig. 3 A " in ", become " greatly " larger than the gear ratio i of Fig. 3 B in fig. 3 c.
Fig. 3 D illustrates and makes offset R1 be the state of " 0 ", and rotating center axis P1 is positioned at concentric position with the center point P 3 of rotating disc 6.Gear ratio i now becomes infinitely great (∞).
As shown in Figure 2, the turning radius controlling mechanism 4 of present embodiment, connecting rod 15 and swing connecting bar 18 form the connecting rod 20 of fourbar linkage type.The stepless speed variator 1 of present embodiment has total 6 connecting rods 20.When offset R1 is not " 0 ", when rotating when making input shaft 2 and pinion shaft 7 and input shaft 2 rotated with same speed, each connecting rod 15 is each on one side changes 60 degree of phase places, while according to offset R1, hocket between input shaft 2 and output shaft 3 and push output shaft 3 side to and pull to input shaft 2 side and swing with repeating this alternating movement.
The outlet side annulus 15b of connecting rod 15 links with the swing connecting bar 18 being arranged at output shaft 3 via overrunning clutch 17, and swing connecting bar 18 is swung by push-and-pull by means of the rotation of connecting rod 15.This swing connecting bar 18 is to when pushing away direction and draw any sideway swivel in direction, and output shaft 3 rotates, and when swing connecting bar 18 rotates to opposite side, the power of the oscillating motion of swing connecting bar 18 is not delivered to output shaft 3, and swing connecting bar 18 dallies.Each turning radius controlling mechanism 4 is owing to being configured in the mode of each difference 60 degree of phase places, and therefore output shaft 3 utilizes each turning radius controlling mechanism 4 to rotate successively.
When Fig. 4 A illustrates that offset R1 is " maximum " of Fig. 3 A (when gear ratio i is minimum), the hunting range θ 2 of the rotary motion relative to turning radius controlling mechanism 4 of swing connecting bar 18, Fig. 4 B illustrate offset R1 be Fig. 3 B " in " time (when gear ratio i is middle), hunting range θ 2, Fig. 4 C of the rotary motion relative to turning radius controlling mechanism 4 of swing connecting bar 18 when illustrating that offset R1 is " little " of Fig. 3 C (when gear ratio i is large), the hunting range θ 2 of the rotary motion relative to turning radius controlling mechanism 4 of swing connecting bar 18.
Can know from Fig. 4 A to Fig. 4 C, along with offset R1 diminishes, the hunting range θ 2 of swing connecting bar 18 narrows.In addition, when offset R1 is " 0 ", swing connecting bar 18 does not swing.Further, in the present embodiment, by the hunting range θ 2 of the swing end 18a of swing connecting bar 18, be set to inner dead centre closest to the position of input shaft 2, the position farthest away from input shaft 2 is set to the bottom dead-centre.
Then, as shown in Figure 5 and Figure 6, the stepless speed variator 1 of present embodiment has connection pin escapement, and this connection pin escapement restriction connection pin 19 moves relative to the outlet side annulus 15b of connecting rod 15 in the axial direction thereof.Here, axial direction is formed as parallel with the bearing of trend of rotating center axis P1.
Connection pin escapement is by following Structure composing: groove portion 19a, and it is arranged on the outer circumferential face of connection pin 19 in the mode extended along the direction orthogonal with axial direction; Hole portion 15c, it is arranged at the outlet side annulus 15b of connecting rod 15 in the mode that the position corresponding with groove portion 19a at axial direction extends along the direction orthogonal with axial direction, and; And locking pin 21, it is inserted in hole portion 15c.
In the present embodiment, be formed on the periphery circle of connection pin 19 groove portion 19a complete cycle.In addition, the length of the bearing of trend of groove portion 19a also suitably can set according to the hunting range of swing connecting bar 18.Further, groove portion 19a is arranged at the middle position of connection pin 19 in the axial direction.
In the present embodiment, the hole portion 15c of the outlet side annulus 15b of connecting rod 15 is formed as cross section for circular, and on the outer circumferential face of outlet side annulus 15b from the opening of the annulus 18e side of swing connecting bar 18 inwardly, cut away the extension partially of the inner peripheral surface of outlet side annulus 15b, the end of hole portion 15c is closed between the outer circumferential face and inner peripheral surface of outlet side annulus 15b.In addition, the cross section of hole portion 15c is not limited to circle, also can be polygonal.
As shown in Figure 2 and Figure 4, swing connecting bar 18 to push away direction (direction away from input shaft) rotate time, overrunning clutch 17 transmits the power of the oscillating motion of swing connecting bar 18 to output shaft 3.
Therefore, in the outlet side annulus 15b of the connecting rod 15 linked at the swing end 18a with swing connecting bar 18, with the left side of connection pin 19 (namely, than the center of connection pin 19 from the position close to input shaft 2) compare, on the right side of the connection pin 19 of outlet side annulus 15b (namely, than the center of connection pin 19 from the position away from input shaft 2), produce relatively low pressure.
Therefore, in the present embodiment, the center than connection pin 19 of being arranged on by hole portion 15c, from the position away from input shaft 2, inhibits the reduction of the durability of the connecting rod 15 caused because of providing holes portion 15c.
In addition, in the overrunning clutch 17 of present embodiment, swing connecting bar 18 to push away direction (direction away from input shaft) rotate time, to output shaft 3 transmitting force, therefore, the forming position of hole portion 15c is made to be positioned at the side (that is, than the center of connection pin 19 from the position away from input shaft 2) of the relatively low pressure of generation.
But the present invention is not limited to such structure.Such as, when employing swing connecting bar to overrunning clutch to output shaft transmitting force when drawing direction (direction close to input shaft) to rotate, the position producing relatively low pressure is the opposition side of present embodiment.Therefore, in this case, hole quality award from the ministry elects center than connection pin as from the position close to input shaft.
In the present embodiment, the cross section of locking pin 21 is circular, and locking pin 21 linearly extends.The external diameter of locking pin 21 is formed as identical with the diameter of hole portion 15c.Therefore, outlet side annulus 15b and locking pin 21 can not relative movements in the axial direction.
In addition, locking pin 21 is not limited to circle when analysing and observe observation, also can form the polygonal such as triangle or quadrilateral.Further, the diameter of locking pin 21 there is no need necessarily identical with the diameter of hole portion 15c.Such as, the diameter than hole portion 15c of locking pin 21 also can be made bigger, be fixed by press-in.Further, locking pin 21 also can be made to be formed with outside thread, make hole portion 15c be formed with internal thread, fixing by making them screw togather.
Under locking pin 21 is formed as the state in patchhole portion 15c, its part abuts with the internal surface of groove portion 19a.Move relative to outlet side annulus 15b in the axial direction thereby, it is possible to limit connection pin 19 via locking pin 21.Now, outlet side annulus 15b rotates about the axis freely relative to connection pin 19.
And, as shown in Figure 5, about the locking pin 21 in the hole portion 15c of the outlet side annulus 15b of insertion connecting rod 15, a part (circular arc portion) for its circumferential surface abuts with the internal surface of the groove portion 19a of connection pin 19, and other part of circumferential surface abuts with the inner peripheral surface of hole portion 15c.Thus, make outlet side annulus 15b and connection pin 19 in the axial direction can not relative movement via locking pin 21.
In addition, as shown in Figure 7, locking pin 21, to be inserted into the state of the other end of hole portion 15c from one end of hole portion 15c, is fixed on outlet side annulus 15b by means of bonding or riveted joint etc.
As shown in Figure 8 A and 8 B, even if locking pin 21 moves along the bearing of trend of hole portion 15c, the end of locking pin 21 also abuts with the outer circumferential face 18f of the annulus 18e of swing connecting bar 18, and a part for locking pin 21 also still abuts with the internal surface of groove portion 19a.Therefore, it is possible to restriction connection pin 19 moves relative to the outlet side annulus 15b of connecting rod 15 in the axial direction thereof.
In addition, in the present embodiment, hole portion 15c is blind hole, (such as, the situation of Fig. 8 when the angle of oscillation of swing connecting bar 18 is in hunting range.In addition, Fig. 7 is the state of production phase.), hole portion 15c is formed as opening part in the outer circumferential face side of the annulus 18e of swing connecting bar 18.Therefore, even if when the angle of oscillation of swing connecting bar 18 becomes maximum (even if when swing connecting bar 18 is positioned at the bottom dead-centre or inner dead centre), one end 21a of locking pin 21 also abuts with the outer circumferential face 18f of the annulus 18e of swing connecting bar 18.
Just, hole portion 15c there is no need necessarily to be formed as like this, may not be blind hole and being formed as through hole.In this case, in order to prevent locking pin 21 from can move to the direction away from swing connecting bar 18, such as, the swing end 18a of swing connecting bar 18 also can be made to be configured to be positioned at the top of annulus 18e.
As mentioned above, in the stepless speed variator 1 of present embodiment, have connection pin escapement, this connection pin escapement restriction connection pin 19 moves relative to the outlet side annulus 15b of connecting rod 15 in the axial direction thereof.Further, this connection pin escapement is configured to, and the part inserting the locking pin 21 in the hole portion 15c be arranged on the outlet side annulus 15b of connecting rod 15 abuts with the internal surface of the groove portion 19a of the outer circumferential face being arranged at connection pin 19.
Namely, in the connection pin escapement of present embodiment, the part of locking pin 21 in the hole portion 15c being arranged on the outlet side annulus 15b of connecting rod 15 by making insertion abuts with the internal surface of groove portion 19a of the outer circumferential face being arranged at connection pin 19, and prevents the action (coming off) in the axial direction thereof of connection pin 19.
Therefore, in the stepless speed variator 1 of present embodiment, not needing to use the situation that must be configured to the ring-shaped member abutted with the end face of connection pin such as connection pin escapement, making connection pin shortening for configuring the space of ring-shaped member and formation for embedding the amount in the space in the groove portion of this ring-shaped member.
Therefore, stepless speed variator 1 according to the present embodiment, when making swing connecting bar 18 swing, can be used as pressurized significant surface by the roughly whole inner peripheral surface in the hole of the swing end 18a of the outlet side annulus 15b of connecting rod 15 or swing connecting bar 18.
Further, owing to being not the structure configuring the parts of Drop-proof in the mode abutted with the end face of connection pin 19, but 1 locking pin 21 is engaged with connection pin 19, therefore use the parts of a Drop-proof.Thereby, it is possible to realize the simplification of connection pin escapement.
Claims (4)
1. a stepless speed variator, described stepless speed variator has:
Input shaft;
Output shaft, itself and described input shaft configure abreast;
Connecting rod, it has turning radius controlling mechanism, swing connecting bar and connecting rod, described turning radius controlling mechanism comprises rotary part rotatable centered by the rotating center axis of described input shaft, and freely can regulate the turning radius of described rotary part, described swing connecting bar rotatably axle is supported on described output shaft and is provided with the swing end of ring-type, the outlet side end of ring-type that described connecting rod comprises the input side end that is rotatably connected with described rotary part and links with described swing end, the rotary motion of described input shaft is converted to the oscillating motion of described swing connecting bar by described connecting rod,
Single direction rotation stops mechanism, described swing connecting bar will be fixed relative to described output shaft to during a sideway swivel relative to described output shaft centered by the rotating center axis of described output shaft in described swing connecting bar by it, when described swing connecting bar will rotate to opposite side, described swing connecting bar is dallied relative to described output shaft; And
Cylindric or cylindric connection pin, the described swing end of described swing connecting bar and the described outlet side end of described connecting rod are run through in its rotating center axis direction along described output shaft, and described swing end is connected to can relatively rotate with described outlet side end
This stepless speed variator makes gear ratio change by making the turning radius of described rotary part change,
The feature of described stepless speed variator is,
Described stepless speed variator has connection pin escapement, and on the axial direction that this connection pin escapement is limited in described connection pin, described connection pin moves relative to the described outlet side end of described connecting rod,
Described connection pin escapement is formed by with lower part: groove portion, and it is arranged at the outer circumferential face of described connection pin in the mode extended along the direction orthogonal with the axial direction of described connection pin; Hole portion, it is arranged at the described outlet side end of described connecting rod in the mode that the position corresponding with described groove portion on the axial direction of described connection pin extends along the direction orthogonal with the axial direction of described connection pin; And locking pin, it is inserted in the portion of described hole,
Described locking pin abuts with the internal surface in described groove portion being inserted under the state in the portion of described hole.
2. stepless speed variator according to claim 1, is characterized in that,
Described swing connecting bar has annulus, configures described output shaft in the inner circumferential side of described annulus, and the outer circumferential face of described annulus is provided with described swing end,
Even if when described locking pin to move to described locking pin one end along described hole portion abuts with the outer circumferential face of described annulus, described locking pin also abuts with the internal surface in described groove portion.
3. stepless speed variator according to claim 1 and 2, is characterized in that,
When described swing connecting bar will rotate away from the mode of described input shaft with described swing end centered by the rotating center axis of described output shaft, described single direction rotation stops mechanism described swing connecting bar to be fixed relative to described output shaft, when described swing connecting bar will rotate close to the mode of described input shaft with described swing end, described single direction rotation stops mechanism that described swing connecting bar is dallied relative to described output shaft
Described hole portion is arranged on center than described connection pin from the position away from described input shaft.
4. stepless speed variator according to claim 1 and 2, is characterized in that,
When described swing connecting bar will rotate close to the mode of described input shaft with described swing end centered by the rotating center axis of described output shaft, described single direction rotation stops mechanism described swing connecting bar to be fixed relative to described output shaft, when described swing connecting bar will rotate away from the mode of described input shaft with described swing end, described single direction rotation stops mechanism that described swing connecting bar is dallied relative to described output shaft
Described hole portion is arranged on center than described connection pin from the position close to described input shaft.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014090619A JP2015209874A (en) | 2014-04-24 | 2014-04-24 | Continuously variable transmission |
| JP2014-090619 | 2014-04-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105041815A true CN105041815A (en) | 2015-11-11 |
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ID=54448667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510119233.8A Pending CN105041815A (en) | 2014-04-24 | 2015-03-18 | Continuously variable transmission device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2015209874A (en) |
| CN (1) | CN105041815A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6148690A (en) * | 1999-03-12 | 2000-11-21 | Emerson Electric Company | Cam follower mounting assembly |
| EP1106846A1 (en) * | 1998-10-20 | 2001-06-13 | Richard Borgi | Device for reversibly immobilizing a shaft by means of a tangential locking pin |
| JP4115168B2 (en) * | 2002-05-31 | 2008-07-09 | 本田技研工業株式会社 | Continuously variable transmission for bicycle |
| KR20110105025A (en) * | 2010-03-18 | 2011-09-26 | 현대 파워텍 주식회사 | Cone-ring type continuous variable transmission |
| CN202431693U (en) * | 2011-12-20 | 2012-09-12 | 郑州精益达汽车零部件有限公司 | Front axle master pin locking structure with double locking pins |
| CN103534516A (en) * | 2011-06-30 | 2014-01-22 | 本田技研工业株式会社 | Four-joint link type continuously variable transmission |
-
2014
- 2014-04-24 JP JP2014090619A patent/JP2015209874A/en not_active Withdrawn
-
2015
- 2015-03-18 CN CN201510119233.8A patent/CN105041815A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1106846A1 (en) * | 1998-10-20 | 2001-06-13 | Richard Borgi | Device for reversibly immobilizing a shaft by means of a tangential locking pin |
| US6148690A (en) * | 1999-03-12 | 2000-11-21 | Emerson Electric Company | Cam follower mounting assembly |
| JP4115168B2 (en) * | 2002-05-31 | 2008-07-09 | 本田技研工業株式会社 | Continuously variable transmission for bicycle |
| KR20110105025A (en) * | 2010-03-18 | 2011-09-26 | 현대 파워텍 주식회사 | Cone-ring type continuous variable transmission |
| CN103534516A (en) * | 2011-06-30 | 2014-01-22 | 本田技研工业株式会社 | Four-joint link type continuously variable transmission |
| CN202431693U (en) * | 2011-12-20 | 2012-09-12 | 郑州精益达汽车零部件有限公司 | Front axle master pin locking structure with double locking pins |
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| Publication number | Publication date |
|---|---|
| JP2015209874A (en) | 2015-11-24 |
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