JPS58188528A - Manufacturing device of endless metallic belt of driving belt for stepless speed change gear - Google Patents

Abstract

PURPOSE:To manufacture accurately the circumferential length difference of a titled metallic band to a specified size, by making a fixed shaft having proper number of rolls of the same diameter movable through a slide base against with respect to a rotation shaft having plural stepped parts of different outer diameters. CONSTITUTION:Metallic annular blank materials having the same diameter are wound around stepped parts 10a, 10b...10h of a rotation shaft and rolls 24A, 24B...24H of a fixed shaft 15. A rotation shaft stay 6 is fixed to a fixed plate 4 with bolts 7, 7. A fixed shaft stay 16 is fixed to a slide base 14 by clamping bolts 19, 19 and 22, 22. At the same time, the stay 16 and fixed shaft 15 are connected. Next, after moving a bae 14 until the material becomes tense, the rotation shaft 9 is rotated, and at the same time, oil pressure is applied to a hydraulic cylinder 29 to separate the base 14 from the fixed plate, and the material is elongated and yielded and plastically deformed. By this way, endless metallic belts W1, W2...W8 having the circumferential length difference equal to the diameter difference of stepped parts 10a...10h are manufactured.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for manufacturing an endless metal band that constitutes a carrier of a fast-loss drive belt in a side-moving type beltless belt.

No belt drive type8. In the transmission, Gold 11! ■The block made of Il can be slid freely,
and are attached successively to form a drive belt. This drive belt is wound around two (2) type belt wheels, and torque is transmitted from one (2) type belt wheel to the other (2) type pedal wheel. When the continuously variable transmission is in operation, the drive belt's ■ block comes into contact with the drive surface of the partially conical cane forming the ■ groove of the V-shaped belt wheel, and the carrier itself moves against the drive surface of the ■ type belt wheel. It is designed to avoid contact. In this case, the carrier is subjected to tensile force by the block located inside the type belt vehicle, so in order to extend the life of the carrier and enable the drive belt to be used for a long period of time, it is necessary to configure the carrier. Since it is necessary for each endless metal band to evenly share the tensile force acting on the carrier, each endless metal band must have a difference in length within a predetermined value.

Conventionally, in order to keep the difference in the length of each endless metal strip within a predetermined value, those having the difference in the length of the endless metal strips within a predetermined value are selected from among a large number of manufactured endless metal strips and assembled. In this way, in order to select and use a large number of endless metal strips, it is necessary to manufacture several times the number of endless metal strips than the number of endless metal strips to be laminated, which is very uneconomical in terms of manufacturing man-hours and materials. Met.

In view of the above, it is an object of the present invention to provide an apparatus for manufacturing an endless metal band for a drive belt for a continuously variable transmission, which can accurately manufacture the length difference of each endless metal band constituting a carrier to a predetermined dimension. It is.

Next, in FIG. 6, which explains the invention of 2008 based on an embodiment shown in the drawings, the endless metal strip manufacturing apparatus 1 has a rectangular base 72 having a predetermined thickness, and the longitudinal direction of this base 2 is A pair of slide guides 6.6A are attached to both sides of the upper part of the slide guide 6.6A.

A constant plate 4 is attached to the upper surface of the -@ side (left@ in the figure) of both slide guides 6.3A by a number of ports 5. A pair of (6) rotating shaft stays 6.6A are respectively attached to both ends of the fixed plate 40 by bolts and bolts 7.7, and are positioned by a pair of knock pins 8.8. The rotating shaft 9 has a shaft portion 9m at one end supported by a bearing 11 attached to the rotating shaft stay 6.
This shaft portion 9m is capable of sliding in the direction of the axis MCI of the rotating shaft 9 with respect to the bearing 11. The shaft portion 9bH at the other end of the rotating shaft 9 is supported by a bearing 12°12 mounted on the rotating shaft stay 6A. Rotating shaft 9 bearings 12°12
A nut 1 for fixing the bearing is attached to the threaded part of the more protruding end 9c.
6 is screwed in. For this reason, there are 9 rotating axes! 12
．． 12, it is no longer possible to move in the direction of its axis @c1.

The rotating shaft 9 supported by both rotating shaft stays 6, 6A as described above has its axis c1 perpendicular to the longitudinal center line C of the base 2, and the upper surface of the base 2 is parallel to.

During the rotation N9, a plurality of (eight in the illustrated example) endless metal bands W1 . W2.
The same number of step weights as W3...W8 are formed.

Since there are eight step portions in this embodiment, the primary 10&, 1ob, 1oC from the rotating shaft stay 61iil
...If it is 10h, each stepped portion 10&.

10b...10h#'i have the same width, and the outer diameter is tI 忰 that can obtain a predetermined difference in length between each endless metal strip hung on each stepped portion 10&, 10b...10h. It has become. Here, the diameter of the stepped portion 106 located at the center is the maximum, and the stepped portion 1 on one side of this stepped portion 10el
0 (the diameter of 1 is next to the stepped part 105 and 11 is also
The diameter of the step portion 10d is the second largest. Therefore, if the stepped portions are arranged in descending order of diameter, 106
．． 10d, 10f, 10e.

They are 10g, 10b, 10h, and 10JL.

The slide base 14 is supported by the slide guides 3 and 3A, and is movable in a direction perpendicular to the axis c1 of the rotating shaft 9 while being guided by both slide guides 6°3AQ). A pair of fixed shaft stays 1 are provided on both sides of the sphide base 140 for mounting the fixed shaft 15.
6.17 is provided. Both stays 16, 17 have their respective lower portions positioned on the side surfaces of the slide base 14 by two knock pins 18, 18, and are attached by bolts 19.19. One end of the fixed shaft 15 has a flange 151iL, and the other end 15b is fitted into the shaft hole 16a of the fixed shaft stay 16.
The side end portion is inserted into the shaft hole 17& of the fixed shaft stay 17. When the collar 15& of the fixed shaft 15 is brought into contact with the end surface of the fixed shaft stay 17, the end portion 15b of the fixed shaft stay 168 projects from the outer end surface of the stay 16. The fixing plate 20 for fixing the fixed shaft 15 to the fixed shaft stay 16 has a recess 2D&f in the center and is formed in a halatular shape, and the recess 20a is connected to the end 15b of the fixed shaft 15.
K* is inserted, and its outer cylinder side is attached to the fixed shaft stay 16 with four bolts 21.

And ll! I from the outside of the recess 20a of the Ll fixed plate 2o
! One foot plate 20 is threaded through, and two bolts 22 are screwed into the end 15b of the fixed shaft 15, so the rigid shaft 15 is attached to the fixed shaft stay 16 via the fixed plate 20. ing.

As described above, the axis C2 of the fixed shaft 1Ill115 supported by both fixed shaft stays 16 and 17 rotates.

The fixed shaft 15 has each stepped portion 10& of the rotating shaft 9.

Disc-shaped rollers are mounted by radial bearings 24 at positions facing the rollers 10b, . . . , 10h, respectively.

Here, if the loaves facing each stepped portion 10&, 10b...10h are respectively 23A, 23BJ...21, the width of each loaf 23A, 23B...23H becomes narrower than the width of each stepped portion. A thrust bearing 25 is interposed in each loaf (D).The thrust bearing 25 is inserted into the fixed shaft 15 between the fixed shaft stay 16 and the loaf 23A. One end is attached to the single-leg shaft steel 16. A thrust bearing 25 is interposed between the thrust plate 26 and the roller 23A.
is fitted onto the fixed shaft 15 between the fixed shaft stay 17 and the loaf 23H, and one end thereof is connected to the fixed shaft stay 17.
is attached to. And Sfust plate 26
A thrust bearing 25 is also interposed between A and the roller 23H.

A rectangular cylinder support plate 27 is attached to an end surface of the base 2 on the opposite side of the end to which the rotating shaft 9 is attached by an appropriate number of bolts 28.

A hydraulic cylinder 29 is attached to the cylinder support plate 27 on the opposite side of the fixed shaft 15 via four rods 30. The connecting bolt 31 attached to the tip of the rod 29m of the hydraulic cylinder 29
It is screwed into the upper center of the end surface 145L of the slide base 14 facing the cylinder support plate 27. Therefore,
When the hydraulic cylinder 29 is actuated, the slide base 14 is guided by the slide guide 6.6A while rotating the rotating shaft 9.
move towards or away from.

Note that in Figures @1 and 2, means (for example, a motor, etc.) for rotating the rotating shaft 9 are not shown.

Next, this 9I! The function of the example will be explained briefly.

First, the hydraulic cylinder 29 is operated to place an annular material W for producing an endless metal band between each stepped portion 10a, 10b-10h of the rotating shaft 9 and each loaf 23A, 23B...23H of the fixed shaft 15. Move the slide base 14 close to the fixed plate 4 until the position is reached. Next, rotate shaft stay 6
19.19 Loosen the bolts 7.7 that attach the rotating shaft stay 6 to the fixed plate 4, remove the rotating shaft stay 6 from the fixed plate 4, and attach the fixed shaft stay 16 to the slide base 14.
and a bolt 22 that connects the fixed plate 20 and the fixed shaft 15.
．． 22, and move the fixed shaft stay 16 to the slide base 1.
Remove from 4. Next, each stepped portion 10& of the rotating shaft 9.

10b...10h and each loaf 24A of the fixed shaft 15,
A metal annular material W (silkworm fl@ in Fig. 1) having the same diameter is called to 24B...24H, respectively. Then, the rotating shaft stay 6 is positioned with respect to the fixed plate 4 using the knock pin 8.8, and the rotating shaft stay 6 is attached to the fixed plate 4 using two bolts 7.7. In addition, the fixed shaft stay 16 is positioned on the slide base 7-14 using the knock pin 18.18, the fixed shaft 15 is supported by the fixed shaft stay 16, and the two bolts 19.19 and the two bolts 22 are .22 to attach the fixed shaft stay 16 to the slide base 14, and connect the fixed shaft stay 16 and the fixed shaft 15.

Next, after moving the sphere base 14 until each annular material W is tensed, the rotating shaft 9 is rotated in the direction shown by the arrow in FIG. Pull it away from the fixed plate 4,
Each annular material W is pulled. In this case, slide base 1
The tensile amount of 4 is set until each annular material W stretches, yields, and undergoes plastic deformation. Here, each annular material W is stretched while being rotated between each stepped portion of the rotating shaft 9 and each loaf of the fixed shaft 15, so that it is uniformly stretched.

As described above, the stretched annular composite material W is plastically deformed while maintaining a radial difference equal to the amount of the diameter difference made at the stepped portions 10JL, 10b...10h of the rotating shaft 9, and is transformed into an endless metal band 'W1, 'W2...I8. When the endless metal belt is formed in this way, the rotation of the rotating shaft 9 is stopped, the hydraulic pressure of the hydraulic cylinder 29 is removed, and the endless metal belt W1, I2 is formed.
After the tensile force applied to I8 is reduced to 0, the rotating shaft stay 6 and the fixed shaft stay 16 are removed from the manufacturing apparatus 1 again, and the bandless metal strip 11. I2...I8 are taken out from the manufacturing apparatus 1. In this way, an endless metal strip with a desired length difference is formed into shapes bv, t, so that the endless metal strip can be changed from an object with a small circumference (or an object with a large circumference) to wl, 'W8. Assemble in the order of vi2...I5,
In addition, in the embodiment described above, the diameter of the step attached to the rotating shaft 9 is made maximum at the center, and small bottles of primary diameter are placed on both sides of the step. Alternatively, steps with different primary diameters may be provided from one side of the rotating shaft 9 to the other side -1 by making the other center shaft the minimum diameter and providing a step with a large primary diameter on both sides thereof. Furthermore, it goes without saying that the number of nine-step differences provided on the rotating shaft 9 is not limited to eight. Further, the robe may be a book containing several loaves such as 201.20B.

Further, the annular material W may have the same diameter or may be made in advance with different lengths.

As described above, this invention provides a drive belt carrier with 11
Will B be completed? It has different outer diameters corresponding to the circumferential length differences of Ji number of endless metal bands, and has a step part formed continuously in the encroaching direction, and both ends are movably supported above the base. a rotating shaft supported above the base in parallel with the rotating shaft, and a fixed shaft that rotatably supports the loaf facing the stepped portion of the rotating shaft, and means for moving the slide base 7 in the direction of stretching the fc endless metal strip material; Accordingly,
By configuring an apparatus for manufacturing endless metal bands for drive belts for continuously variable transmissions, it is possible to set the directivity of the stepped portion of the rotating shaft to an appropriate value, and to adjust the difference in the length of each endless metal band that makes up the carrier to an appropriate value. It can be made to any desired value and there is no need to create an extra endless metal strip for carrier fabrication. Therefore, the material cost and man-hours required for manufacturing the endless metal strip can be reduced.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which FIG. 1 is a partially cutaway front view of the manufacturing apparatus, and FIG. 2 is a cross-sectional view taken along line 1-1 of FIG. 1V. 1... Endless metal strip manufacturing equipment

Claims (1)

[Claims] It has different outer diameters corresponding to the different lengths of the plurality of endless metal bands that make up the carrier of the drive belt, and has a stepped part formed continuously in the longitudinal direction, so that it can rotate above the base. A fixed shaft that rotatably supports a suitable number of lobes facing the stepped portion of the rotating shaft and having the same diameter, and this fixed shaft is supported above the base in parallel with the rotating shaft. In addition, the distance between the fixed shaft and the rotating shaft can be changed by using a swidth base attached to the base, and a sliding base in the direction of stretching each endless metal strip material hung from the stepped part of the rotating shaft and the loaf of the fixed W shaft. An apparatus for manufacturing an endless metal band of a continuously variable transverse drive belt, comprising: a means for moving the belt;