WO2015111448A1 - Transmission équipée d'un mécanisme de transmission auxiliaire - Google Patents

Transmission équipée d'un mécanisme de transmission auxiliaire Download PDF

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Publication number
WO2015111448A1
WO2015111448A1 PCT/JP2015/050480 JP2015050480W WO2015111448A1 WO 2015111448 A1 WO2015111448 A1 WO 2015111448A1 JP 2015050480 W JP2015050480 W JP 2015050480W WO 2015111448 A1 WO2015111448 A1 WO 2015111448A1
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WO
WIPO (PCT)
Prior art keywords
shift
transmission
sub
main
shaft
Prior art date
Application number
PCT/JP2015/050480
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English (en)
Japanese (ja)
Inventor
幸士 寺島
Original Assignee
いすゞ自動車株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by いすゞ自動車株式会社 filed Critical いすゞ自動車株式会社
Publication of WO2015111448A1 publication Critical patent/WO2015111448A1/fr

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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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/3013—Constructional features of the final output mechanisms the final output mechanism being characterised by linkages converting movement, e.g. into opposite direction by a pivoting lever linking two shift rods
    • 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/70—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for change-speed gearing in group arrangement, i.e. with separate change-speed gear trains arranged in series, e.g. range or overdrive-type gearing arrangements

Definitions

  • the present invention relates to a transmission with a sub-transmission mechanism, and more particularly, to a transmission with a sub-transmission mechanism that can perform synchronous transmission more reliably than before.
  • multi-stage transmissions with 12 or 16 gears are employed.
  • a method of taking a multi-stage by combining a sub-transmission called a splitter and a main transmission is employed instead of simply increasing the number of gear stages.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2013-137079
  • the inventor makes the sub-transmission and the main transmission four by operating a single operation lever.
  • a transmission with a sub-transmission mechanism has been proposed in which gears can be simultaneously shifted by being synchronized via an interlocking mechanism including a joint link mechanism.
  • This interlocking mechanism has a function to rotate the output in one direction on the main transmission side regardless of the rotation direction of the input when the input is performed in the shift direction on the sub transmission side from the neutral position by the operation lever. is doing.
  • An object of the present invention is to provide a transmission with a sub-transmission mechanism that can perform synchronous gear shifting more reliably than before.
  • a transmission with a sub-transmission mechanism of the present invention that achieves the above object is a transmission with a sub-transmission mechanism that simultaneously shifts the main transmission mechanism and the sub-transmission mechanism by operating the operation lever in the select direction and the shift direction.
  • a sub-shifting shift shaft that extends in the select direction on the side of the sub-transmission mechanism and rotates in response to an operation of the operating lever in the shift direction; and an upper end portion of the sub-transmission shaft is rotatable.
  • a sub-shifting shift lever that is supported and connected via an elastic member and extends downward, and a sub-shift that is disposed below the sub-transmission shaft and engages with a lower end portion of the sub-transmission shift lever.
  • a shift lever for main shift that moves in the select direction by operating the select lever in the select direction; and a lower end portion of the shift lever for main shift that is arranged in parallel in the select direction below the main shift shaft.
  • the sub-transmission shift shaft and the main transmission shift shaft are provided with a protruding portion provided upright on one arm.
  • the guide groove is connected by an interlocking mechanism that engages with a guide groove provided on the arm of the arm, and the guide groove is formed in a substantially v-shape that protrudes toward the shift shaft to which the one arm is connected.
  • a pressing means for pressing the projection located at the bent portion of the guide groove toward the groove wall of the guide groove, and the shift lever for sub-transmission is operated by operating the operating lever in the shift direction. Regardless of the direction of rotation of the shaft, the rotational force transmitted to the main transmission shift shaft through the interlocking mechanism is converted into one direction by the interlocking mechanism, so that the main transmission shift lever is moved in one direction.
  • the sub-transmission mechanism-side synchronization mechanism and the main transmission mechanism-side synchronization mechanism start synchronous coupling simultaneously, so that the rotational force of the sub-transmission shift shaft is transmitted via the elastic member to the sub-transmission mechanism. It is transmitted to a shift lever for shifting.
  • the auxiliary transmission shift shaft on the auxiliary transmission mechanism side and the main transmission shift shaft on the main transmission mechanism side are connected using the interlock mechanism as described above, thus, it is possible to perform synchronous shift more reliably.
  • FIG. 1 is a skeleton diagram of a transmission with an auxiliary transmission mechanism according to an embodiment of the present invention.
  • FIG. 2 is a schematic perspective view showing a shift operation device for operating the transmission with the auxiliary transmission mechanism according to the embodiment of the present invention.
  • FIG. 3 is a top view showing the configuration of the transmission with the auxiliary transmission mechanism according to the embodiment of the present invention.
  • FIG. 4 is a configuration diagram from the select direction of the interlocking mechanism in the transmission with the auxiliary transmission mechanism according to the embodiment of the present invention.
  • FIG. 1 to 4 show a transmission with an auxiliary transmission mechanism according to an embodiment of the present invention.
  • “for splitter” means “for auxiliary transmission”
  • “for main” means “for main transmission”.
  • the transmission with a sub-transmission mechanism (hereinafter referred to as “transmission”) 1 includes a splitter-type sub-transmission mechanism 2 disposed on the input side and a main transmission disposed on the output side.
  • the mechanism 3 is mainly configured.
  • an input shaft 4 for transmitting the output of an engine (not shown) is installed on the auxiliary transmission mechanism 2 side.
  • a main shaft 5 is disposed on the main transmission mechanism 3 side so as to be coaxial with the input shaft 4.
  • the auxiliary transmission mechanism 2 and the main transmission mechanism 3 are provided with a counter shaft 6 that extends in parallel to the input shaft 4 and the main shaft 5.
  • the splitter low speed gear 7 is provided on the input shaft 4 so as to be relatively rotatable.
  • the main shaft 5 is provided with a splitter high speed gear 8, a main third speed gear 9, a main second speed gear 10, a main first speed gear 11, and a main reverse gear 12 in order from the input side so as to be relatively rotatable.
  • the counter shaft 6 includes a counter low-speed gear 13 that meshes with the splitter low-speed gear 7, a counter high-speed gear 14 that meshes with the splitter high-speed gear 8, a counter third-speed gear 15 that meshes with the main third-speed gear 9, and a main second-speed gear.
  • a counter second speed gear 16 that meshes with 10, a counter first speed gear 17 that meshes with the main first speed gear 11, and a counter reverse gear 19 that meshes with the main reverse gear 12 via an idler gear 18 are fixed.
  • the transmission 1 is configured to selectively move the splitter gears 7 and 8 and selectively switch the main gears 9 to 12 to provide six forward speeds (1st speed L to 3rd speed H) and 2 reverse speeds ( The rearward shift L and the reverse shift H) are configured to be possible.
  • the shift operation device 20 of the transmission 1 has a plurality of H-type gates 21 and their H-type gates 21 so that the speed change between the sub-transmission mechanism 2 and the main transmission mechanism 3 can be operated simultaneously. And an operation lever 22 for moving (stroke).
  • a select path 23 is provided in the select direction of the H-shaped gate 21, and a neutral position N corresponding to the neutral mode is set at the center thereof.
  • a neutral position N corresponding to the neutral mode is set at the center thereof.
  • four shift paths 24 to 27 orthogonal to the select path 23 are provided. Further, at the end portions of the four shift paths 24 to 27 corresponding to the end of the stroke of the operation lever 22, the above-described six forward speeds (1st speed L to 3rd speed H) and 2 reverse speeds (reverse L, reverse) Shift positions corresponding to H) are respectively set.
  • the shift operating device 20 is connected to the shift mechanism of the subtransmission mechanism 2 when the operation lever 22 is operated in the shift direction, and is connected to the select mechanism of the main transmission mechanism 3 when the operation lever 22 is operated in the select direction. It is configured to be.
  • the transmission mechanism 30 of the transmission 1 includes a first shift shaft 31 that extends in the shift direction, a second shift shaft 32 that extends parallel to the first shift shaft 31, and a sub-transmission.
  • Four shafts consisting of a splitter shift shaft 33 extending in the select direction on the mechanism 2 side, a main shift shaft 34 extending in the select direction on the main transmission mechanism 3 side, and a main R / 1 speed connecting mechanism 35 and a main 2/3 speed connection mechanism (not shown).
  • a splitter shift lever 36 is rotatably attached to the splitter shift shaft 33, and a spring 38 is interposed between the splitter shift lever 36 and the annular flange 37.
  • a splitter shift block 39 is disposed below the splitter shift shaft 33. The lower end of the splitter shift lever 36 is formed at the center of the splitter shift block 39, as shown in FIG. Engaged with the recess.
  • the upper end of the main shift lever 40 is spline fitted to the main shift shaft 34. For this reason, the main shift lever 40 rotates integrally with the main shift shaft 34, while being movable in the axial direction (select direction) of the main shift shaft 34. Further, below the main shift shaft 34, four main shift blocks 41 to 44 arranged in parallel in the select direction are arranged. As shown in FIG. 4, the lower end portion of the main shift lever 40 is The main shift blocks 41 to 44 are engaged with recesses formed in the center.
  • a splitter shift fork 45 is provided on the first shift shaft 31 so as to be movable in the axial direction, and a main 2/3 speed shift fork 46 is fixed to the first shift shaft 31.
  • a main R / 1 speed shift fork 47 is fixed to the second shift shaft 32.
  • the main R / 1 speed connecting mechanism 35 includes a connecting member 48 for connecting and fixing the main reverse shift block 41 and the second shift shaft 32, a rod 49 fixed to the main first speed shift block 42, and a central portion. And a reversing lever 50 that can rotate around the fulcrum.
  • the reversing lever 50 has one end connected to the rod 49 and the other end hinged to the second shift shaft 32.
  • the connecting member 48 connects and fixes the main 2 speed shift block 43 and the first shift shaft 31, and the reversing lever 50 is connected to the main 3 speed shift block 44. Except for being hingedly connected to the fixed rod 49 and the first shift shaft 41, the main R / 1 speed connecting mechanism 35 is configured in substantially the same manner.
  • the splitter shift lever 36 is also rotated in the same direction.
  • the shift block 39 moves to the left (X direction shown in FIG. 4).
  • the shift fork 45 for the splitter moves to the left toward the splitter low-speed gear 7 and contacts the spline teeth (not shown) of the corresponding sleeve and the dog teeth (not shown) of the block ring.
  • the main shift lever 40 is moved to the main shift shaft 34. Move along the select direction. As a result, the lower end portion of the main shift lever 40 engages with any one of the concave portions of the main shift blocks 41 to 44 corresponding to the selected arbitrary shift position.
  • the main shift lever 40 rotates counterclockwise (the F direction shown in FIG. 4) by operating the operation lever 22 in the select direction
  • the main first speed shift block 42 moves to the right (the Y direction shown in FIG. 4). Move to).
  • the rightward moving force of the main first speed shift block 42 is converted to the leftward by the rotation operation of the reversing lever 50 and transmitted to the second shift shaft 32.
  • the main R / 1-speed shift fork 47 moves to the left toward the main first-speed gear 11 along with the second shift shaft 32, and the corresponding spline teeth (not shown) and blocks of the sleeve Contact the dog teeth (not shown) of the ring.
  • one end of the splitter shift shaft 33 and the main shift shaft 34 is fixed to the splitter shift shaft 33, and a cylindrical protrusion 60 is erected on the other end. It is connected by an interlocking mechanism 64 comprising a splitter interlocking arm 61 and a main interlocking arm 63 having a guide groove 62 with one end fixed to the main shift shaft 34 and the other end being engaged with the projection 60. ing. It is preferable that the outer diameter of the protrusion 60 and the groove diameter of the guide groove 62 are substantially the same.
  • the guide groove 62 is formed in a substantially ⁇ shape that is convex toward the splitter shift shaft 33 side, and a bent portion 62 a thereof corresponds to the neutral position N.
  • the main interlocking arm 63 is provided with a groove wall (edge) of the guide groove 62 so that the protrusion 60 does not rattle when the protrusion 60 is positioned at the bent portion 62a where the shape of the guide groove 62 is discontinuous.
  • the pressing means 65 is provided to press the portion.
  • the pressing means 65 includes a spring member 66 having one end fixed on the main interlocking arm 63 and a spherical member 67 attached to the other end of the spring member 66.
  • the guide groove 62 is pressed toward the groove wall.
  • the projecting portion 60 causes the guide groove 62 to transmit the rotational force in the left and right directions (directions C and D shown in FIG. 4) transmitted from the splitter shift shaft 33 to the splitter interlocking arm 61.
  • the main interlocking arm 63 is converted to a leftward rotational force (E direction shown in FIG. 4) and the main shift shaft 34 is always rotated leftward (F direction shown in FIG. 4).
  • the pressing means 65 that presses the projection 60 at the bent portion 62a where the guide groove 62 is discontinuous, the projection 60 is not rattled, so the neutral position N can be accurately determined.
  • the number of shift stages in the transmission 1 of the present invention is not limited to the above-described six forward speeds (1st speed L to 3rd speed H), but 4 forward speeds (1st speed L to 2nd speed H) or 8 forward speeds ( 1st speed L to 4th speed H), or more stages may be used.
  • the transmission 1 is not limited to a manual transmission, and the present invention can also be applied to a mechanical manual transmission (AMT) in which a shift operation and a selection operation are automated by an actuator or the like.
  • AMT mechanical manual transmission

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear-Shifting Mechanisms (AREA)

Abstract

Arbre de changement de vitesse (33) pour utilisation de séparateur et arbre de changement de vitesse (34) pour utilisation principale dans une transmission (1) équipée d'un mécanisme de transmission auxiliaire reliés l'un à l'autre par un mécanisme d'emboîtement (64) comprenant : un bras d'emboîtement (61) pour utilisation de séparateur dans lequel une extrémité de celui-ci est fixée à l'arbre de changement de vitesse (33) pour utilisation de séparateur , et l'autre extrémité de celui-ci est fixée à l'arbre de changement de vitesse (34) pour utilisation principale, et l'autre extrémité de celui-ci possède une rainure de guidage (62) dans laquelle la saillie (60) entre en prise. En outre, la rainure de guidage (62) a sensiblement une forme de v de manière à former une convexité vers l'arbre de changement de vitesse (33) pour utilisation de séparateur. De plus, le bras d'emboîtement (63) pour utilisation principale est pourvu d'un moyen de pressage (65) destiné à presser la saillie (60), qui est positionnée dans une section incurvée (62a) de la rainure de guidage (62), vers une section bord.
PCT/JP2015/050480 2014-01-21 2015-01-09 Transmission équipée d'un mécanisme de transmission auxiliaire WO2015111448A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014-008639 2014-01-21
JP2014008639A JP6459173B2 (ja) 2014-01-21 2014-01-21 副変速機構付き変速機

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WO2015111448A1 true WO2015111448A1 (fr) 2015-07-30

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PCT/JP2015/050480 WO2015111448A1 (fr) 2014-01-21 2015-01-09 Transmission équipée d'un mécanisme de transmission auxiliaire

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0328574A (ja) * 1989-06-22 1991-02-06 Kubota Corp 変速装置の変速操作構造
JPH0396761A (ja) * 1989-09-07 1991-04-22 Kubota Corp 変速装置の変速操作構造
JP2013137078A (ja) * 2011-12-28 2013-07-11 Isuzu Motors Ltd 副変速機構付き変速機
JP2013137079A (ja) * 2011-12-28 2013-07-11 Isuzu Motors Ltd 副変速機構付き変速機

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS625708Y2 (fr) * 1980-07-04 1987-02-09
JPH0396762A (ja) * 1989-09-07 1991-04-22 Kubota Corp 変速装置の変速操作構造

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0328574A (ja) * 1989-06-22 1991-02-06 Kubota Corp 変速装置の変速操作構造
JPH0396761A (ja) * 1989-09-07 1991-04-22 Kubota Corp 変速装置の変速操作構造
JP2013137078A (ja) * 2011-12-28 2013-07-11 Isuzu Motors Ltd 副変速機構付き変速機
JP2013137079A (ja) * 2011-12-28 2013-07-11 Isuzu Motors Ltd 副変速機構付き変速機

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JP6459173B2 (ja) 2019-01-30

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