JPS6220953A - Frictional transmission assembly - Google Patents

Abstract

PURPOSE:To promote general use by receiving the reaction of pressure contacting force by means of an input element friction engaging with a conical roll and a member for supporting the raceway element. CONSTITUTION:A friction rolling system comprising a conical roll 1, a speed change ring 2, an input element 4 and a raceway element 6 is of a ring rotary type or a ring non-rotary type. The input element 4 and the raceway 6 are supported by a supporting member 9 having a flange section 10 at one end to form a ride-over type pressure contacting force generating unit 11 between the frange section 10 and the raceway element 6. Consequently, the important section of an R-type transmission can be employed in many applications.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application: The present invention relates to a friction continuously variable transmission or a machine in which a friction continuously variable transmission acting part is provided.

Conventional technology: The friction transmission system of a friction continuously variable transmission disclosed in Japanese Patent Publication No. 57-1'5221 includes a plurality of conical rotors and a speed change ring that frictionally engages with the conical surface of the conical rotors. , an input element that frictionally engages with the concave cross-section transmission surface on the conical trochanter, and a raceway element that frictionally engages with the flat transmission surface on the conical trochanter, and the raceway element is stopped. Depending on whether the rotation of the speed change ring or the rotation of the speed change ring is restricted, the rotation of the speed change ring or the rotation of the track element is extracted as output rotation.

The friction continuously variable transmission has a characteristic that the speed change range includes a point where the rotational speed of the output shaft is 0, and that the magnitude of the torque that can be generated increases as the rotational speed of the output shaft decreases. This characteristic is preferably used in the operation of heavy objects, power transmission when the load fluctuates, etc., and therefore this type of continuously variable friction transmission has an extremely wide range of uses.

Problems to be solved by the invention: If the friction continuously variable transmission described above is simply referred to as an R-type transmission, it is not only supplied to the market as a single unit, but also used in various machines. It can also be installed as an element of the transmission system, so if it is manufactured according to the usage conditions, the number of types will increase.Also, when incorporating it into a machine, the strength of the outer shell of the machine must be considered. This means that it must be included in the

Means for Solving the Problems: The present invention provides a friction transmission unit for an R-type transmission, the assembly of which includes “a plurality of conical rotors and a speed change ring that frictionally engages with the conical surface of the conical rotors. , consisting of an input element that frictionally engages with a concave surface-shaped transmission surface on a conical trochanter, and a raceway element that frictionally engages with a flat transmission surface on a conical trochanter, and whether the raceway element is stationary or not. Depending on whether the rotation of the speed change ring is restricted, the rotation of the speed change ring or the rotation of the track element is taken out as the output rotation, in other words, the input element and the track element of the R type transmission. , supported by a support member having a through hole in the axial direction, and seven ring parts facing the raceway element are provided at the end of the support member to generate a riding cam type pressure contact force between the flange part and the raceway element. In addition to forming a device, the input element is rotatably supported by the support member via a thrust bearing.

Function: The above assembly is used to construct a ring rotating type and a ring non-rotating type R type transmission or a speed change operation part. This device is installed so that the reaction force of the pressure contact force is received by the support material that supports the input element and the track element, so that no large force is exerted on the outer shell on which it is installed. Moreover, this device is relatively small in size and has a length slightly larger than the axial length of the space in which the conical trochanter is arranged. Furthermore, the through hole of the support material in this product can be used to pass the shaft for rotating the input element, if necessary.

The above assembly allows various types of R-type transmissions to be constructed in accordance with the installation conditions required by the customer.

Embodiment: FIG. 1 shows an example of a friction transmission assembly according to the invention.

In this figure, (1) is a conical trochanter, and the speed change ring (
2), a concave transmission surface (5) that frictionally engages the input element (4), and a raceway element (6).
) and a flat transmission surface (7) that frictionally engages with the shaft. A friction transmission system including a conical trochanter (1), a speed change ring (2), an input element (4) and a track element (6) is configured such that the speed change ring (2) Either a "one-ring rotation type" in which the rotation is the output rotation, or a "ring non-rotation type" in which the rotation of the orbital element (6) is the output rotation.

The input element (4) and the track element (6) are supported by a support (9) with an axial through hole (8). The support member (9) is provided with a flange portion αa at one end thereof, and a cam-type pressure generating device αυ is formed between the flange portion 01 and the track element (6). The support member (9) connects the input element (4) via the angular contact type rolling bearing (2).
) is rotatably supported. The angular contact type rolling bearing (2) can be replaced with a combination of a radial type rolling bearing and an axial type rolling bearing. α3
is a connection hole provided on the input element (4), and a41 is a connection hole provided on the flange portion αG.

2 to 4 are views illustrating how the assembly of FIG. 1 is used. Among these figures, Fig. 2 shows that the disk device driven by the engine Qυ is connected to the input element (4), and the disk on the output shaft is connected to the pressure generating device αυ.
The drive connection to the track element (6) is shown.

The one in FIG. 2 is of the ring non-rotating type. Note that a speed change operation mechanism for moving the speed change ring (2) in the axial direction is omitted from illustration.

FIG. 6 shows a case where the assembly shown in FIG. 1 is used to construct a variable speed motor pulley with a built-in motor. In this figure, ``■'' is a pulley drum rotatably supported by a stationary member. OD is a stationary member at one end. The inside of the pulley drum ■ is divided into two chambers by a partition wall ω,
A motor is housed in one chamber, and a friction continuously variable transmission and a reduction gear train are housed in the other chamber. The output shaft (2) of the motor is provided through a through hole (8) (see FIG. 1) provided in the support (9) of the assembly. (to) is a disk spline-connected to the end of the output shaft (to) and is fixed to the input element (4).

The reduction gear train consists of a sun gear field fixed to the 7-ring part αG of the support member (9), a planetary gear (to), and an internal gear (to) on the stationary member diagram that restrains the rotation of the speed change ring. Shi becomes,
Rotation is transmitted to the bulkhead ■ that acts as a carrier and the pulley drum ■ connected to it. (to) is a feed screw rod for speed change operation.

The ones shown in FIGS. 2 and 3 are of the ring non-rotating type, but the one shown in FIG. 4 is of the ring rotating type. This is the vehicle's automatic transmission. The 7-ring part a■ on the support member (9) of the input element (4) and the track element (6) is connected to the casing (411) by a rotation stopper pin ta, and the rotation of the speed change ring (21) is connected to the rotating member (rotation). communicated.

(41 is a rotating member (gear on the top) that transmits power to the axle via an intermediate gear, etc. (41 is a rotating member (gear) that transmits power to the axle through an intermediate gear, etc.). It is a device that moves the

Effects of the invention: The present invention provides essential parts of the R-type transmission that can be adapted to various uses. It is advantageous to anyone who uses it as a part. In other words, the producer of this item can make and prepare a relatively large amount in anticipation of a wide variety of demands, and the consumer can use the machine he/she wants to make to produce this item under conditions with few spatial and strength constraints. can be used.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional side view of a friction transmission assembly according to the present invention, and FIGS. 2 to 4 are longitudinal sectional side views showing examples of using the assembly of FIG. 1. -■1; 11-ya charmer

Claims (1)

[Claims] a plurality of conical trochanters, a transmission ring that frictionally engages with the conical surface of the conical trochanters, an input element that frictionally engages with the concave cross-section transmission surface on the conical trochanters, and It consists of a raceway element that frictionally engages with a flat transmission surface, and depending on whether the raceway element is held stationary or rotation of the speed change ring is restricted, the rotation of the speed change ring or the rotation of the raceway element is extracted as output rotation. The input element and the track element of the object are supported by a support member having a through hole in the axial direction, and a flange part facing the track element is provided at the end of the support member, and the input element and the track element are mounted between the flange part and the track element. What is claimed is: 1. A friction transmission assembly, characterized in that a cam-type pressure contact force generating device is formed, and an input element is rotatably supported by the support member via a thrust bearing.