JP2011080577A - Super continuously variable transmission - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To drastically reduce the slipping between a belt and a pulley in a variable diameter pulley, reduce a load at the time of start, increase an amount of change, increase a gear ratio and a reduction ratio, employ a material which causes no slippage, remove the uneven tension and distortion, and eliminate a deviation between the optimal tension and a base line. <P>SOLUTION: The engagement of the variable diameter pulley is increased and in place of the teeth of a gear, balls are engaged with each other in a disk shape to change a speed. The diameter of the pulley is changed at the time of start depending on a load. A disk is placed between pulleys for move in place of a belt. The belt is adjusted in the core of a V-belt wheel. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

The rotational speed is changed by forcibly changing the pitch diameter of the belt that is applied to the pulley.
The present invention relates to belt tension adjustment when a power transmission belt is used as power transmission means.

Belt type continuously variable transmission, CVT, toroidal CVT, chain type CVT.

As a conventional means for tensioning the belt, a method of moving the power main body by shifting the base on the power side is generally used.

In conventional rubber belts, metal belts, and toroidal CVTs, slippage occurred between pulleys and belts, disks and rollers, and the gear ratio could not be increased. In addition, the adjustment, tension, and alignment accuracy of these series of belts are easily performed.

The problem to be solved is that the belt on the power side is moved and the belt is pulled or tensioned, so that the tension of the belt will be generated, which causes the tension between the pulling device, the operating mechanism such as a screw and the pulley side. Due to the deviation, torque was generated, and it was impossible to adjust the belt tension while keeping the pulley parallel. Moreover, since there was play in the mounting bolts between the base and the main body, those symptoms were likely to occur. In this way, when the belt is operated with a pair of facing pulleys tilting, loss of power transmission, deformation wear of the pulleys, and improper tension have occurred. In particular, the tendency is strong when there are a large number of belts, each belt has uneven tension, and each belt has a difference in tension and wear pain, resulting in a difference in belt usage environment conditions, especially close to the main body. The belt tended to be tight.

(1) Change the pulley diameter by changing the pulley diameter by moving the pulley into a circular shape with the fingers assembled without bending the fingers, hanging the belt on it, overlapping the fingers deeper, or shallower.
(2) Shifting is performed by shifting the objects in which the balls are arranged radially on the pulley, shifting them in stages, engaging the balls and moving the position of the balls.
(3) Spoke wheel type, the hydraulic cylinder is installed from the center of the spoke part of the pulley, and a pantograph-like object is attached to the head,
In order to keep the position of the belt unchanged, the belt is attached to the diamond-shaped arm of the pantograph so that the position of the belt does not change. The hydraulic cylinders attached to the input and output spokes are operated in inverse proportion to change the speed.
(4) The disc is sandwiched between the input side and output side of the variable-diameter pulley, and shifting is performed by moving the disc to either side.
(5) Distribute several or more leaf springs radially and control them evenly according to the load, and the output side is expanded by the leaf spring attached to the inner ring of the outer ring of the disk by the load. The belt is placed on the pin that protrudes from the disc.
(6) A lever is attached to the inner ring of the outer ring of the disc, and the variable is performed using the principle that the diameter changes depending on the inclination of the lever caused by the displacement of the inner ring of the outer ring.
(7) It has a bobbin shape, and a number of rods are passed between the disks and moved radially from the center to the outside to change the drum inner diameter and change speed.
(8) From the above means, make the belt difficult to slip or not slip by meshing. Varies depending on the load. In addition, these expansion / contraction controls are controlled by a computer using a variable system.
(9) In order to apply the same force to all the belts, a tension device and a device that increases the distance between the pulleys are provided between the pulleys. In order to apply a proper and uniform force to all belts, a hydraulic jacky is applied to the pulley core to widen the distance between the pulleys, and the belt is stretched so that there is no distortion, twisting and bending as the belt. In addition, a pulley retainer is used to increase the contact surface in order to prevent jacking misalignment, disengagement, fall, and damage to the pulley when tensioning.

Slip loss can be reduced or fixed, and the gear ratio can be increased.

Since the belt is stretched evenly without distortion, the loss of driving force is eliminated, and the belt's life is prolonged because there is no local wear of the belt where the sound is quiet. The life of each belt is the same. Adjustment of belt tension becomes easy.

Front view Plan view Left side view Isometric drawing SE Front view Plan view Left side view Isometric drawing SE Front view Plan view Left side view Isometric drawing SE Front view Plan view Left side view Isometric drawing SE Front view Plan view Left side view Isometric drawing SE Isometric SW Front view Plan view Right side view Isometric drawing SE Isometric SW Front view Plan view Left side view Isometric NE Front view Plan view Left side view Perspective view

Divide the disk evenly and evenly, and divide it every other frame (even, odd)
Divide and divide into two, connect even number group and odd number group to the center boss and ring respectively, angle the group, form a shape just like a trumpet, and face each other and combine .
Each even and odd number is connected to a boss and ring at the center of the circle, and the input pulley and output pulley are connected by a belt.

Drill a number of grooves evenly in a radial pattern on the disk, set the two balls that can move with the same diameter along the groove, shifted by about 2 radii, and engage the balls with the balls. Move the ball into and out of the disk at the same time in the engaged state. If one is outside, the other is inside. The balls shall be skewered.

A hollow hydraulic cylinder is attached to the spoke wheel-shaped spoke part from the center, and a belt hook shaped like a pantograph is set at the tip of each cylinder head in a direction perpendicular to the cylinder. Lay out hydraulic cylinders so that there is no problem in terms of function.

Shifting is performed by sandwiching the disk between the input side and output side of the variable diameter pulley and moving the disk to either side.

A crescent-shaped leaf spring is arranged radially from the central axis, and the guide is linearly operated so that all the expansion and contraction can be transferred with the same diameter, and the parent pulley that reduces the diameter when this load is applied, the primary side input and It is composed of a secondary pulley whose diameter expands when a load is applied. The secondary pulley is composed of an inner pulley and an outer pulley, and a two-layer structure. When a leaf spring is attached to the outer ring and the inner ring and a load is applied, a difference occurs between the inner and outer rings, and the leaf spring is a force that spreads outward. Belt the belt spring at a right angle from the tip and centripetal part.

The inner ring and outer ring are composed of two layers of discs. A cylindrical dowel is attached radially to the inner and outer rings, and it extends to the vicinity of the center of the circle without further drilling into a frame that has been rolled through the rectangle. It consists of a lever consisting of a cylindrical pin that hangs the belt horizontally at a right angle, and changes the diameter by changing the displacement inclination of the inner ring of the outer ring. In addition, a spring is built in the lever, rattling, Eliminate shaking. The displacement of the inner ring of the outer ring is operated with a screw-type lever on the back side, and the input side and the output side are moved in inverse proportion to each other and in opposite directions.

The speed is changed by changing the input / output side diameter of the drum with a bobbin-shaped pulley. At that time, a frame that sandwiches the drum and a radial groove in the disk are dug, and a round bar is passed through the groove. Move the stick from the outside to the outside of the center of the circle, and in order to control all the round bars equally, the umbrella is spread out and takes a shape that folds. Make sure that it works on the input and output sides.

The above-described shift control by the mechanism is made possible by computer control.

In order to optimize the belt tension and belt position, this is effective in the case of a large number of belts in which a hydraulic jack is applied to the center of the input side and output side of the pulley.

In Fig. 1, the disk is divided into 30 equal parts, and every other disk is divided into even and odd numbers, and the angles are set in opposite directions, approximately 60 degrees here, and the angled objects cross each other. Bundle it with the boss in the center. The boss moves inward and outward on the spline axis of the central axis. A belt is hung in the valley of this variable diameter pulley.

Fig. 2 shows how to squeeze the ball out of about 30 grooves carved into the disk, and push the ball through the rod rod from the outside in order to shrink and expand the ball in a radial, circular direction at the same time. It ’s just like opening and closing an umbrella. In terms of balls and gears that have been cut out of this groove, the tooth part and the object with this mechanism are shifted about half a circle to the opposite side and set face to face. In order to allow the gears to mesh with each other, in order to enable speed change, when one is near the center of the shaft, the other is set and meshed at a position close to the outer periphery. The control of both balls is controlled by a hydraulic cylinder or electrically. With screw rotation, linear, etc.

Fig. 3 shows the shape of 12 spoke wheels, each of which has a hollow hydraulic cylinder at the base of the 6-spoke part, installed from the shaft, horizontally and perpendicularly from the tip of each cylinder. The rhombus pantograph is turned sideways so that the connection and hooking of the belt are good, and the spokes that are not installed in the hydraulic cylinder are also connected and serve as reinforcement. It is also possible to connect the input and output pools with the same object facing each other and connect them to make them stronger.

Fig. 4 shows that the disc needs to be shifted at a position where the input / output is the same rotation between the input-side variable-diameter pulley and the output-side variable-diameter pulley. Depending on the characteristics, the disk is moved to the input pulley and the output pulley to change the speed.

Fig. 5 shows that eight leaf springs in the shape of a bow are set radially from the shaft at equal intervals, and the tips of the leaf springs are rounded in the same eight grooves that are dug into the disk of the back plate. All the leaf springs are operated uniformly by connecting them to the ring and connecting them all to the shaft ring on the back side to make the mechanism the same as opening and closing the umbrella. The groove is elongated and rectangular. This is the parent pulley, the input side, and the output pulley has a structure that is divided into inner and outer rings and does not sandwich a ball like a bearing, but it has a structure that slides and rotates without moving the inner and outer rings. Pins are arranged radially on the inner and outer rings, and the inner and outer ring pins are connected to a bow-shaped leaf spring. The pins protrude from the inner ring pins, have a round bar at the tip, and hang the belt on the round bar. .

Fig. 6 shows the outer ring on the outer circumference of the disc inner ring attached to the shaft. Eight cylindrical pins are radially arranged on each inner and outer ring, and the outer ring moves as far as possible. In order to use the displacement that occurs from the deviation of the pin, in order to use the deviation of the pin, a square frame is fitted, and the square frame corresponding to the change in length and angle due to the deviation is rattled. As a measure to eliminate the above, a spring is provided in the frame, a handle is further attached to the frame, and the frame is extended in the center direction. In order to turn the outer ring, two cylinders are placed in a symmetrical position on the back side of the outer ring, the ring is hung on it, tied to the female screw at the center part with a rod, and the outer ring is displaced. The shaft part is a male screw.

Fig. 7 shows a bobbin-shaped object for wrapping electric wires and cables, facing each other, tying the ring with a belt, and changing the diameter of the ring (belly band). Open the rod, pass the rods, and connect each rod to the ring that is attached to the shaft outside the disk so that each rod moves in and out at the same diameter at the same time. And the ring part has a structure that bends and takes the same method as the opening and closing of the umbrella, it is done simultaneously from the outside of the outer frame on both sides,
Further, in order to move the opposite ring of the drum opposite to each other, the ring attached outside the drum is connected to the input side and the output side to move in reverse. In this figure, a pole is set up from the center of the connecting rod, and a gear or pulley is attached to the tip of the connecting rod and moved by a chain or timing belt, and the ring is moved in the opposite direction.

The above-described shift control by the mechanism is made possible by computer control.

FIG. 8 is an explanatory view showing an implementation method in which a hydraulic jacky is set at the center of the pulley between a plurality of V-belt pulleys on the input side and the output side to tension the belt.

  All power shifts, decelerations and all belt drives. bicycle.

Appropriate tension for the V belt.

1
Pulley, V belt car
2
Variable diameter pulley
Three
Inclined variable diameter pulley with radial taper groove
Four
Disk with radial taper groove
Five
Shaft
6
Evangelism belt
7
Timing belt
8
V belt car
9
Disc, disc, (frame)
Ten
spline
11
pin
12
Moving part connection pin
13
Hydraulic cylinder
14
Hollow hydraulic cylinder
15
Hydraulic pump
16
hose
17
Sphere, ball
18
ring
19
rod
20
boss
twenty one
Round bar guide
twenty two
Spoke wheel
twenty three
lever
twenty four
Rhombus arm
twenty five
Slide frame guide joint
26
Groove, anti
27
coil spring
28
Leaf spring
29
Inner ring
30
Outer ring
31
Frame lever
32
Screw part
33
Wheel, drum
34
Bobbin
35
gear
36
chain
37
Pole
38
Contact arm
39
power
40
Differential machine
41
base
42
Movement adjustment bolt
43
Key
44
Pulley holding plate

Claims (9)

A bevel gear is made to face each other, the recesses are pierced through the recesses and the protrusions can be crossed, and the variable diameter pulley is made by utilizing the difference in diameter and the change that can be made by entering and exiting the intersection. Spherical spokes in the shape of a spoke wheel, spheres, (balls) are skewered, arranged radially, and the arrangement of the spheres is called expansion / contraction by pushing and pulling the guide rods along the guides. . If the same object is shifted by about a radius and takes a pair of shapes, the balls are placed so that the teeth of the gears are engaged with each other, and if one of the balls is centered, the other spoke The speed is changed by moving in and out while laying out and overlapping each other like the outside of the wheel. Radial hollow hydraulic cylinders are arranged in even numbers and even numbers, and hangers and rhombus arms are attached to the horizontal part perpendicular to the tip, so that the position of the belt does not change regardless of the top and bottom of the cylinder. Another disk is placed between the input pulley and output pulley of the variable diameter pulley, and the speed is changed by moving the disk. The leaf springs are extended radially from the center of the disk, and are connected to each other for simultaneous contraction and expansion. When the load is applied, the diameter is reduced on the input side, and when the load is applied, the diameter is increased by the movement of the leaf spring due to the displacement of the inner and outer rings. Provide inner and outer rings on the disc, and place a cylinder on each ring in a radial pattern, and place a lever on the belt so that the belt position does not change. Radial cuts are made in the outer ring frame of the bobbin, and a round bar is passed through each groove, and the round bar moves along the groove with the same diameter, thereby changing the diameter, and the diameter of the input drum and the diameter of the output drum. The pulleys are connected by belts in a conflicting manner. The above items are controlled by a computer. Adjust the belt tension of the V-belt car by catching the core of the opposite pulley of the V-belt car, adjust the belt tension using a hydraulic jacky, and perform the same work using a screw-type jacky.