JPS61266860A - Non-stage transmission with comulative error correction device - Google Patents

Abstract

PURPOSE:To enable the automatic correction of cumulative error by providing a sliding body with two air cylinders between a non-stage transmission and a speed change operating means, and variably controlling to a prescribed speed position by the command of a cumulative error detecting means. CONSTITUTION:A sliding body 5 having two air cylinders 3 and 4 is interposed between a speed change operating means A and a non-stage transmission. The supply and exhaust of pressure air to or from the air cylinders 3 and 4 is instantaneously carried out by the command from an arbitrary cumulative error detecting means B, and the cumulative error correction operating position of the non-stage transmission is variably controlled in response to the cumulative error so as to come to each prescribed position of normal speed, increasing speed, decreasing speed by means of air cylinders 3 and 4. Thus, cumulative error in speed control can be eliminated when the plural number of machines are operated.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a continuously variable transmission with an accumulated error correction device.

(Prior Art) Conventional continuously variable transmissions of this type do not include two sets of means for correcting the cumulative error of the continuously variable transmission; A separate differential device or the like must be used, which has the drawback of not only increasing the size of the device but also significantly increasing the cost.

(Problem to be solved by the invention) Does this invention have any of the above drawbacks? It is possible to automatically correct cumulative errors in continuously variable transmissions, is compact, and
The present invention provides a continuously variable transmission with an accumulated error correction device that can be provided at a low cost and can be incorporated into a conventional continuously variable transmission.

(Means for Solving the Problems) The present invention provides a continuously variable transmission and its speed change operation means that are connected to each other via a sliding body (5) equipped with two air cylinders (3) and (4). The two air cylinders (3)
(4) Instantly supply and exhaust pressurized air to the two air cylinders (3) according to a command from an arbitrary cumulative error detection means (scent) to determine the cumulative error correction operation position of the continuously variable transmission.
, (4) to the set reference speed, speed increase, and deceleration position.
Features and T
The above-mentioned problems were solved by adopting technical means.

(For explosive use) This invention has the above configuration. At the standard speed, pressurized air is supplied to one air cylinder (3), and pressurized air is exhausted from the other air cylinder (4) to set the cumulative error correction operation position of the continuously variable transmission at the set standard speed. keep it in place,
When increasing speed, both air cylinders (3), (4)
The cumulative error correction operation position of the continuously variable transmission is kept fluctuating at the set acceleration position by supplying pressurized air to the cylinders, and when decelerating, pressurized air is exhausted from both air cylinders (3) and (4). The cumulative error correction operation position f of the continuously variable transmission
The cumulative error detection means, for example, measures the pulses from the reference machine and the pulses from the follower machine with an addition/subtraction counter, and if an error exceeding the set value occurs, immediately The speed will always return to the set reference speed after correction. Each of the correction operations described above can be performed quickly and instantaneously by supplying pressurized air to the two air cylinders (3) and (4) and exhausting it based on a command from the cumulative error detection means (Bl).

(Embodiment) Hereinafter, an embodiment of a continuously variable transmission with an accumulated error correcting device according to the present invention will be described based on the drawings.

The illustrated embodiment is applied to a belt-type continuously variable transmission in which a movable conical plate is provided so as to be able to move toward and away from a fixed conical plate (1), and (1) is a fixed conical plate, and the rotating shaft (6 ) to the key (7
) is fixed through the ko. (2) is a movable conical plate, which is fitted onto the rotating shaft (6) so that it can freely slide in the axial direction, and which faces the fixed conical plate (1) on both sides (
1) and (2) form a variable speed V-pulley. (5) is a sliding body equipped with λ air cylinders (3) and (4), which is slidably fitted into a cylindrical body (9) fixed to a support box (8), and the movable conical plate (2) and a gear shift operating means, which will be described later, are connected to each other via the sliding body (5). That is, the piston αQ of the air cylinder (3) is connected to the movable conical plate (2) and the movable conical plate (2).
A slide that is integrally connected only in the axial direction via a rotation bearing (11) such as a ball bearing! (branch), and the piston (to) of the other air cylinder (4) is screwed to the speed change operation means (N hand/I/screw rod Q). air cylinder (3)
(116) is the air chamber (116) of the other air cylinder (4
), αη is the sealing material of one air cylinder (3), α8) is the sealing material of the other air cylinder (4), 09) is the air chamber □□□) of one air cylinder (3) The ridge is an air port leading to the other air cylinder (4) and the air cylinder (16).

^ is a speed change operation means for moving the movable conical plate (2) forward and backward during normal speed change, and the embodiment employs a dial type handle operation means. That is, the handle screw 04 is attached to the operating handle 3D loosely fitted to the end of the cylindrical body (9).
are fixed together with the setscrew (4), and the operating hand/
L/c! By rotating ll, the handle screw 041 integrated with this rotates, and the handle screw 041 is screwed into the handle screw.
The piece stone (2) of the other air cylinder (4)
)) → Sliding body (5) → Piston αQ of one air cylinder (3) → Movable conical plate (
2) Th is moved forward and backward so that normal gear shifting operations can be performed by operating the steering wheel. ＠ is a V-belt hooked to a variable speed V pulley consisting of a fixed conical plate (1) and a movable conical plate (2), and both conical plates (1) and (2) are moved by the lateral pressure due to the tension of the V-belt □□□. This forces them to move away from each other. The above rotating shaft (6), two air cylinders (
3), (4) and the handle screw α4 are arranged on the same axis,
It is set up.

(B) is the cumulative error detection means, and for example, as shown in FIG. ) between the pulse oscillator (7) and the pulse oscillator (7), (7)
Place a pulse addition/subtraction counter @, and use it together with the 0 point counter (to) to send a command to relay board 4, and when there is no reference speed command from the reference machine (to), use the solenoid valve (E).
, (One of EY is ON and the other is OFF, solenoid valves (E) and (E)' are both ON when there is a speed increase command, and solenoid valves (E) and (E)' are both ON when there is a deceleration command.
)' are both set to 0IPF, and these commands rapidly supply and exhaust pressurized air to both air cylinders (3) and (4), causing the rotational speed of the output shaft group to reach the reference speed, Speed increase and deceleration are instantly and automatically controlled.

In addition, in the above cumulative error detection means, plus and minus commands are always issued from the pulse addition/subtraction counter @, and when the follower (D) and reference machine (C) are synchronized, the 0 point counter Working addition/subtraction counter @B
oXP'r. c3υ is the shaft of the drive motor (B) inserted and fixed on the rotating shaft (6), (to) and (to) are the fixed conical plate and movable conical plate that form the variable speed V pulley on the output side, and (to) is the addition thereof. The pressure spring (to) (7) is a bearing for the output shaft (7).

In the above configuration, at the reference speed, the following machine (D) and the reference machine (
By synchronously turning off the addition/subtraction counter □□□ at the 0 point counter (To), only seven of the solenoid valves (E) and (El' are turned ON via relay board 4, and 2 Pressurized air is supplied to the air chamber α of one of the two air cylinders (3) and (4) or (16) (in the illustrated embodiment, the air chamber (to)), and the fixed conical plate (1) The relative position of the movable conical plate (2) is kept at the reference speed position set by you (see Figures 1 and 3).When increasing speed, the cumulative speed detected by the follower (Kago) and the reference machine (C) is In response to a command from the error signal addition/subtraction counter, the solenoid valve (E), (El' are both set to QN), and the two air cylinders (3) and (41 air chamber □□
□) and C6) to move the movable conical plate (2) to the left in the figure by a certain stroke with respect to the fixed conical plate (1), and increase the pitch diameter of the variable speed V-belt. The relative position of the fixed conical plate (1) and the movable conical plate (2) is maintained at a predetermined speed increasing position (see Fig. 2). During deceleration, the follower (D) and the reference device (to) add and subtract the cumulative error of the detection error.In response to the command from the counter □□□, both the solenoid valves (E) and (E)' are set to OFI + ' and two air cylinders (3), (4) air M
C15), (161 pressure air is discharged and the fixed conical plate (2) is moved by a certain stroke to the right in the figure for 1 inch, the pitch diameter of the variable speed V Peltro is reduced and fixed. The relative position of the conical plate (1) and the movable conical plate (2) is maintained at a predetermined deceleration position (
(See Figure 1A).

Each of the cumulative error correction operations described above involves rapid supply and exhaust of pressurized air to the two air cylinders (3) and (4), resulting in instantaneous speed change control. The amount of movement of the conical plate (2) is a part of the entire shift stroke, and normal shift operations can be performed by rotating the operating handle while maintaining the reference speed, speed increase, and deceleration positions.

In addition, although this invention was applied to a belt-type continuously variable transmission in the embodiment, it is free to be applied to other mainly mechanical continuously variable transmissions, and the embodiment also applies this invention to the drive side (input shaft). Although the invention has been applied, it goes without saying that similar effects can be obtained even if it is applied to the heartbeat side (output shaft).

(Effects of the Invention) As explained above, the present invention has λ air cylinders (3), (
4), and the two air cylinders (3), (4) Tt, for example, a follower (D
Measure the J or 6 (7) pulse and the pulse from the reference machine (to) using the addition/subtraction counter@, and if an error occurs, immediately activate the above λ air cylinders (3) and (4) to control the speed change and control the follower machine. It is possible to operate while constantly making corrections so that the cumulative error in the speed of the reference machine and the speed of the reference machine does not exceed a certain level. There is no cumulative error in speed control during multi-machine operation, and since it can be assembled by simply changing a part of the speed change operation part of the continuously variable transmission, it can be miniaturized and is cost effective. It will also be cheaper.

In addition, the sliding body (5) with λ air cylinders (3) and (4) can be easily replaced, and can even be applied to conventional continuously variable transmissions by simply replacing the speed change operation unit. This invention has unprecedented effects such as:

[Brief explanation of the drawing]

FIG. 1 is an overall sectional view showing an embodiment of a continuously variable transmission with an accumulated error correcting device according to the present invention, and FIGS.
FIG. 1 is a sectional view showing the operating state of the main parts thereof, and FIG. 3 is a block diagram showing an example of the rosewood error detection means. (1)... Fixed conical plate, (2)... Movable conical plate, (
N...speed change operation means, (3), (4)...air cylinder, (5)...sliding body, (B)...cumulative error detection means. Figure 1

Claims (1)

[Claims] A continuously variable transmission and its speed change operating means are connected via a sliding body (5) having two air cylinders (3) and (4), and the two air cylinders (3) and (4)
), the pressure air is instantly supplied to and exhausted from the cumulative error detection means (B), and the cumulative error correcting operation position of the continuously variable transmission is determined by the two air cylinders (3) and (4).
1.) A continuously variable transmission with an accumulated error correcting device, characterized in that the continuously variable transmission is equipped with a cumulative error correcting device to perform variable control at each set reference speed, speed increase, and deceleration position according to the cumulative error.