JPH09329204A - Full automatic continuously variable transmission with built-in rear wheel hub - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a practical transmission by combining together both a sun gear self-operated reverse drive type full automatic continuously variable transmission and a bevel gear self-operated drive type automatic continuously variable transmission. SOLUTION: Self-operated variable drive of a solar gear 11 is performed through self-operated drive of a bevel pinion gear support frame 23 provided in a supporting state with a bevel gear 4 provided at a center with a chassis fixing shaft 1 and drive by the claw 3 of an input rotation member 2, a bevel pinion gear 4 engaged with one side of a double-sided bevel gear 7, and a plurality of bevel pinion gears 8 engaged with a bevel gear 9; a planetary gear support frame 12 provided in a supporting state with an input rotation transmission cylinder shaft 6, a solar gear drive cylinder shaft 10, and a plurality of planetary gears 13 engaged with a solar gear 11; a gear 18 formed integrally with a bevel gear engaged with a ring gear 17 formed integrally with a rear wheel hub 16 driven by the claw 15 of a ring gear 14 engaged with the planetary gear 13; a bevel gear 19; a worm gear shaft 20, a cylinder worm gear 21: and a double enveloping worm gear 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is one in which a fully automatic continuously variable transmission is integrally mounted on a rear wheel hub.

[0002]

2. Description of the Related Art In a conventional automatic transmission, the operation of locking or freeing each gear is carried out by controlling hydraulic pressure by a computer or the like. Due to its large and complicated structure, cost, weight, size, etc. Due to the problem, the usage range is limited.

[0003]

[Problems to be Solved by the Invention] If the gear ratio is mechanically changed by the mechanical force of the conventional automatic transmission, the structure becomes simple and the range of use is expanded.

[0004]

[Means for solving the problem] For this reason, Japanese Patent Application No. Hei.
No. 27250 Sun gear self-reversing drive type fully automatic continuously variable transmission incorporates the contents of the bevel gear self-powered automatic continuously variable transmission that was previously filed, and both devices are connected to the rear wheel hub. It is a thing.

These transmissions are constructed so as to rotate around the chassis fixed shaft 1 so as to obtain a rotation transmission operation in which both are connected. The input side pawl 3 is centered around the chassis fixed shaft 1. The input side rotating member 2 for mounting the input side rotating member 2, the input bevel gear 4, the planetary gear support cylinder 12, and the input rotation transmitting cylinder shaft 6 for transmitting the drive thereof are rotated, and the input side pawl 3 of the input side rotating member 2 is rotated. And the ratchet 26 of the input bevel gear 4 meshes with each other to transmit a rotational force in the input rotation direction, and the input rotation transmission cylinder shaft 6 and the planetary gear support cylinder 12
Is rotated in the input rotation direction. Around the rotating input rotation transmitting cylinder shaft 6, a double-sided bevel gear 7 meshing with a bevel pinion gear 5 supported by a chassis that meshes with the input bevel gear 4, a bevel gear 9, a sun gear rotating cylinder shaft 10, and a sun gear 11 rotate. The double-sided bevel gear 7 is driven in the direction opposite to the input rotation direction, and the double-sided bevel gear 7 is meshed with the gear 18, the bevel gear 19, the worm gear shaft 20, and the cylindrical worm gear 21 which are integrated with the bevel gear from the rear wheel hub 16 side. The bevel pinion gear support frame 23 that supports the bevel pinion gear 8 is self-driven around the double-sided bevel gear 7 and the bevel gear 9 in the opposite direction of the input rotation direction, and the double-sided bevel gear 7 rotates the bevel pinion gear 8 to rotate the bevel gear 9 variably. Obtained, the sun gear rotating cylinder shaft 1
At 0, the sun gear 11 is variably driven. With this configuration, variable drive of the input rotation direction of the sun gear 11 in the low rotation range of the rear wheel hub 16 and the sun gear 11 in the high rotation range of the rear wheel hub 16 are performed.
The variable drive opposite to the input rotation direction of is obtained by itself. When the planetary gear 13 meshing with the sun gear 11 that variably rotates is driven in the input rotational direction together with the planetary gear support cylinder 12 by the rotational force from the input side rotating member 2, the rotational distance of the planetary gear 13 in the input rotational direction is changed. The rotation speed of the ring gear 14 that is variable and meshes with the planetary gear 13 in the input rotation direction is changed. The rotational driving speed of the rear wheel hub 16 in the a direction is also variable by the meshing of the output side claw 15 mounted on the ring gear 14 and the ratchet 26 provided on the rear wheel hub 16. A fully automatic continuously variable transmission operation is performed in the rear wheel hub 16 by the rotation transmission operation in which both are connected.

[0006]

Thus, according to the present invention, two transmissions are housed together in a rear wheel hub, one for forward rotation input and one for reverse rotation input simultaneous rotation input. , By decelerating the bevel pinion gear support frame between the transmission drive of the device inputting reverse rotation from the rear wheel hub and driving in the same input rotation direction, the sun gear forward rotation self-drive of the device inputting normal rotation is variably forward-rotated. When the wheel hub rotation speed increases, it has the effect of switching to sun gear variable reverse rotation self-drive. Due to this principle, the sun gear self-drive and forward rotation input of the planetary gear support frame result in variable deceleration at low rear wheel hub rotation and at high rear wheel hub rotation. Obtain an automatic continuously variable transmission mechanism with variable speed increase.

[0007]

FIG. 1 is a partially cut away perspective view of a continuously variable transmission according to an embodiment of the present invention, which is partially omitted for convenience of explanation.
No. 27250, the gear configuration of the sun gear self-reversing drive means from the drive side, and the bevel gear self-drive type automatic of the previous application in which the sun gear self-driving means also shifts between the rotation input transmissions by the self-drive driving means from the drive side. By incorporating the transmission mechanism of the continuously variable transmission into the planetary gear support frame and the input side bevel gear of the bevel gear self-driving at the same time, the sun gear self-correcting in the low rotation range of the rear hub of the driving side Rotation variable drive is obtained, and sun gear self-reverse rotation variable drive is obtained in the high rotation range. The forward and reverse variable rotation of the sun gear is driven, and the rotation distance of the planet gear that meshes with the sun gear is changed by the simultaneous input rotation of the planet gear support frame. Let The rotation of the planetary gear, which is varied in each rotation range of the rear wheel hub by these two linked operations, causes the ring gear that meshes with the planetary gear to variably rotate. The output side pawl to be mounted on this ring gear and the rear wheel hub The rear wheel hub is driven in the input rotation direction by meshing with the ratchet on the. Since the bevel pinion gear support frame is driven by the bevel gear self-driving means by the rotational force of the rear wheel hub, the gear configuration is composed of the ring gear provided in the rear wheel hub, the gear integrated with the bevel gear, the bevel gear, the worm gear shaft, the cylindrical worm gear, etc. The bevel pinion gear is driven in the direction of rotation of the double-sided bevel gear by meshing with the drum-shaped worm gear of the support frame. Due to the difference between the deceleration drive speed of the bevel pinion gear support frame proportional to the rear wheel hub rotation speed and the rotation speed of the double-sided bevel gear from the input side, the positive rotation direction of the output bevel gear that meshes with the bevel pinion gear is positive,
Reverse switching variable self drive is obtained.

The self-driving of the sun gear, which incorporates a bevel gear self-driving means during the self-reverse driving of the sun gear, causes the sun gear to perform a variable operation for switching between forward and reverse of the sun gear. Variable forward rotation self-driven drive, the bevel pinion gear support frame is fixed to the chassis, and the bevel gear self-driving means does not incorporate the sun gear self-reverse rotation drive. Only the forward rotation of the sun gear, which is proportional to the rear wheel hub rotation speed, is performed. Switching variable operation cannot be obtained. In addition, if the drive ratio of the bevel pinion gear support frame is high, the sun gear normal forward variable drive becomes short, and if the drive ratio is low, the sun gear normal forward variable drive becomes long, and each bevel gear that drives these is a super-bevel gear in the figure. However, in the implementation, a spiral bevel gear with low drive resistance was used, and the worm gear was used as the final gear of the bevel pinion gear support frame drive to reduce the variable self-drive loss of the sun gear and obtain smooth and reliable operation.

In FIG. 1, 1 is a chassis fixed shaft, 2 is an input rotating member, 3 is an input claw having a one-way mechanism, 4 is a ratchet 26 inside, and a reverse input of a bevel gear self-drive transmission and a planetary gear support frame 12 are positive. An input bevel gear that performs rolling drive, 5 is a bevel pinion gear supported by the chassis, which transmits the rotation of the input bevel gear 4 to the double-sided bevel gear 7, 6 is an input rotation transmission cylinder shaft, and a rotation from the rotation input member 2 is supported by a planetary gear. 7, which is transmitted to the frame 12, is a double-sided bevel gear having bevel gears on the left and right, which is rotated in reverse by meshing with the bevel pinion gear 4 by the rotating force of the bevel pinion gear 5.
8 is a bevel pinion gear that meshes with the gear on one side of the double-sided bevel gear 7, 9 is a bevel gear, which is a bevel pinion gear 8
Mesh with, 10 is a sun gear drive cylinder shaft rotated by a bevel gear 9, 11 is a sun gear rotated by a sun gear drive cylinder shaft 12, 12 is a planetary gear support frame and supports several planet gears And is rotated by the sun gear drive cylinder shaft 10, 13
Is a planetary gear that meshes with the sun gear 11, 14 is a ring gear that meshes with the planetary gear 13 and is driven by the rotational force of the planetary gear 13, 15 is a one-way mechanism, and is attached to the ring gear 14 by an output side pawl, 16 is a ratchet A rear wheel hub containing 26 is driven by the output side pawl 15, 17 is a ring gear provided on the rear wheel hub 16, and 18 is a bevel gear that is fixed to the chassis and meshes with the ring gear 16 provided on the transmission gear support frame 24. , 19 is a bevel gear that meshes with the gear 18 that is also integrated with the bevel gear included in the speed change gear support frame 24, 20 is a worm gear shaft that is also integrated with the bevel gear 19 and the cylindrical worm gear 21 that are also included in the speed change gear support frame, and 21 is A cylindrical worm gear that meshes with the hourglass-shaped worm gear 22, which is integrated with the bevel pinion gear support frame 23. Worm gear, 23 is a bevel pinion gear support frame that supports several bevel pinion gears 8 and rotates around a double-sided bevel gear 7 and a bevel gear 9 by a cylindrical worm gear 21, and 25 is a bevel gear that fixes a transmission gear support frame 24. 5, a chassis fixing plate supporting 5, a ratchet 26 that engages with each claw of the one-way mechanism, a ring-shaped spring 27 that raises the claw, 28 is a steel ball, and a steel ball holding nut and other bearing devices are partly for convenience of explanation. It is omitted.

FIG. 2 shows the rotational direction of each part in which both devices continuously rotate around the chassis fixed shaft 1 with respect to the input rotational direction of the input rotary member 2 of FIG. The input bevel gear 4, the input rotation transmission cylinder shaft 6, and the planetary gear support frame 12 are integrally rotated in the rotation direction by the rotation of the input rotation member 2 around the chassis fixed shaft in the input rotation direction. By this rotational force, the bevel pinion gear 5 is rotated in the rotation C direction, the double-sided bevel gear 7 is rotated around the input rotation transmission cylinder shaft 6 in the rotation B direction, and the gear 18, which is integrated with the bevel gear,
The bevel pinion gear 8 is rotatably variably rotated from the rear wheel hub 16 side by the reduction gear including the bevel gear 19, the worm gear shaft 20, and the cylindrical worm gear 21. The rotation directions of the bevel pinion gears 8 of the bevel pinion gear support frame 23 are bevel pinion gears. In the low rotation range of the support frame 23, the bevel gear gear 9 that is variably rotated in two directions of rotation and meshed is rotated around the input rotation transmission cylinder shaft 6 in the A direction to connect the sun gear drive cylinder shaft 10 and the sun gear 11. Also rotate in the direction a. In the high rotation range of the rear wheel hub 16, the bevel pinion gear support frame 2
When the driving speed of 3 increases, the difference from the rotation speed with the double-sided bevel gear 7 decreases, or the speed becomes equal to or higher than the rotation speed of the double-sided bevel gear 7, the bevel gear 9 is variably rotated in the rotation direction. , The bevel gear 9 is also rotated in the B direction, and the sun gear drive cylinder shaft 10 and the sun gear 11 to be connected are also rotated in the B direction. This variably rotated sun gear 1
1, the planetary gear support frame 12 supporting and supporting several planetary gears 13 is simultaneously driven in the direction from the input side to change the rotation distance of the planetary gears 13. A ring gear 14 meshing with the outer circumference of 13 is variably rotated in the direction a. This rotation is interlocked with the output side claw 15 to variably rotate the rear wheel hub 16 in the a direction by meshing with the ratchet 26 provided on the rear wheel hub 16 so as to obtain a gear shifting action by itself. The bevel pinion gear 5 is supported by the chassis fixing plate 25, and is integrated with the bevel gear 18.
The bevel gear 19, the worm gear shaft 20, and the cylindrical worm gear 21 are supported by a speed change gear support frame 24 that is fixed to a chassis fixing plate 24 and rotate around the respective axes. The bevel pinion gear support frame 23 rotates in the lower direction around the double-sided bevel gear 7 and the bevel gear 9 by the rotation of the cylindrical worm gear 21 that meshes with the integral hourglass-shaped worm gear 22 in the C direction, and is supported by the bevel pinion gear support 23. A single bevel pinion gear 8 meshes with the double-sided bevel gear 7 and the bevel gear 9, and in the low rotation range of the rear wheel hub 16, the rear wheel hub 1 moves in two directions.
In the high rotation range of 6, the sun gear 11 revolves in the C direction while revolving in the C direction, and the sun gear 11 rotates in the A direction in the low rotation range of the rear wheel hub 16 and in the B direction in the high rotation range of the rear wheel hub 16. ． By this rotation and the rotation of the planetary gear support frame 12 in the A direction, the rotation of the planetary gear 13 in the A direction is changed and the ring gear 14 is variably rotated in the A direction. By these continuous simultaneous operations by the two devices around the chassis fixed shaft 1, fully automatic continuously variable transmission can be performed in the rear wheel hub 16. Note that a is the forward rotation, that is, the input rotation direction, b is the reverse rotation, and c and d are the rotation directions in the output transmission.

[0011]

As described above, in the device of the present invention, the conventional automatic continuously variable transmission is steplessly changed by itself, so that the gear shift device and the operating lever are eliminated, and the gear shifting operation is
The troublesome operation of switching is eliminated, and it can be made into a compact and lightweight device that is easy to handle in terms of maintenance by putting it all together in the rear wheel hub, and it can be used as an automatic continuously variable transmission in all fields.

[Brief description of drawings]

FIG. 1 is a partially cutaway oblique view of the device of the present invention, which is partially omitted for convenience of explanation.

FIG. 2 is a partially cutaway perspective view of an embodiment of the device of the present invention in which the rotation directions of the gear support frames and the gears in the device of the present invention of FIG. 1 are added by a, b, c and d. Is.

[Explanation of symbols]

 1 chassis fixed shaft 2 input rotation member 3 input side claw 4 input bevel gear 5 bevel pinion gear 6 input rotation transmission cylinder shaft 7 double-sided bevel gear 8 bevel pinion gear 9 bevel gear 10 sun gear drive cylinder shaft 11 sun gear 12 planetary gear support frame 13 planetary gear 14 Ring gear 15 Output side claw 16 Rear wheel hub 17 Ring gear 18 Gear integrated with bevel gear 19 Bevel gear 20 Worm gear shaft 21 Cylindrical worm gear 22 Drum-shaped worm gear 23 Bevel pinion gear support frame 24 Transmission gear support frame 25 Chassis fixing plate 26 Ratchet 27 Ring-shaped spring 28 wrecking ball

Claims (1)

[Claims] 1. A planetary gear support cylinder (12) having a chassis fixed shaft (1) in the center and an input side rotating member (2) for mounting an input side claw (3).
The input rotation transmitting cylinder shaft 6 and the input bevel gear 4 are driven to rotate, and the bevel pinion gear 4 supporting the rotation of the input bevel gear 4 and the input side gear of the double-sided bevel gear 7 are meshed with each other to reverse the double-sided bevel gear 7. Driven, the output side gear of the double-sided bevel gear 7, a combination of the bevel gear integrated gear 18, bevel gear 19, worm gear shaft 20, and cylindrical worm gear 21 from the rear wheel hub 16 side, and the bevel pinion gear support frame 23 is driven by the worm gear 22 by itself. Then, several bevel pinion gears 8 supported by the bevel pinion gear support frame 23 are meshed with the bevel gear 8 that rotates the sun gear rotating cylinder shaft 10, and the output rotation speed from the rear wheel hub 16 and the double-sided bevel gear 7 are It is possible to automatically switch the sun gear 11 from the forward rotation variable rotation to the reverse rotation variable rotation depending on the difference from the input rotation speed. A planetary gear support cylinder 12 of several planetary gears 13 that meshes with a sun gear 11 that is rotated and a ring gear 14 that is equipped with an output side pawl 15 is input from the input side rotation member 2 to an input rotation transmission cylinder shaft 6 in the input direction. A fully automatic continuously variable transmission with a rear wheel hub that continuously changes gears with a simultaneous drive configuration.