JP7312495B1 - Internal transmission clutch device - Google Patents

Abstract

A clutch device for an internal transmission is provided. An axle, a planet carrier, a pawl, a sun gear, a cam base, a pawl clutch ring, a left pawl shaft, a right pawl shaft, a lever, a pawl shaft slider, a shaft claw, and an internal gear ring. and Combining the axial displacement of the pawl shaft slider of the lever with the configuration of the slope of the cam base, the left pawl shaft and the right pawl shaft are operated to clutch the planetary carrier, which is a member that requires rotation, and the left pawl shaft and the right pawl shaft are operated. The connection between the pawl shaft of the pawl shaft and the pawl clutch ring controls whether or not the pawl ends of the left pawl shaft and the right pawl shaft are interlocked with the planetary carrier, and the pawl clutch ring controls the shaft between the axle and the sun gear. It controls the opening and closing of the claw, controls whether the sun gear is fixed or not, and shifts the clutch of the internal transmission. [Selection drawing] Fig. 2

Description

The present invention relates to a clutch device for an internal transmission.

Commonly known internal transmissions change gears by locking or unlocking the sun gear. In the creation of the related known internal transmission clutch structure technology, the difference in operation based on the difference in creative idea and technical idea causes structural differences and advantages and disadvantages for the objects for which the same effect is sought.

However, the conventional technology has problems such as a complicated structure, a large number of members, severe wear when the members receive force, and a short service life. There is a drawback that these problems have a serious impact on the industrial applicability and economic effectiveness of technical creations. Therefore, how to promote further technological innovation has become the goal for the industry to strive for improvement and breakthrough in order to move forward.

SUMMARY OF THE INVENTION The present invention has been made in view of the above, and an object thereof is to provide a clutch device for an internal transmission.

To solve the above problems, a clutch device for an internal transmission according to one aspect of the present invention comprises an axle (1), a planet carrier (2), a pawl (3), a sun gear (4), a cam base (5), a pawl clutch ring (6), a left pawl shaft (71), a right pawl shaft (72), a lever (8), a pawl shaft slider (81), a shaft claw (10), and an internal gear ring (9), wherein the pawl of the lever. The left pawl shaft and the right pawl shaft are operated by the axial displacement of the shaft slider and the slope (52) of the cam base to clutch the planetary carrier, which is a member that requires rotation.
The cam base is provided with a guide groove (51) for positioning the pawl shaft slider of the lever so as to be displaced in the axial direction, and the slope for controlling the left pawl shaft and the right pawl shaft in combination with the pawl shaft slider.
The inner peripheral surface of the pawl clutch ring is provided as an inner cam surface (61) for controlling the opening and closing of the shaft claw between the sun gear and the axle, and the pawl clutch ring is connected to the left pawl shaft and the right pawl shaft via the pawl shaft.
The left pawl shaft and the right pawl shaft are connected to the pawl clutch ring through the pawl shaft, and the rear ends of the left pawl shaft and the right pawl shaft abut against the cam base.
The pawl ends of the left pawl shaft and the right pawl shaft are controlled by the pawl shaft slider of the lever and the slope of the cam base to be interlocked with or not interlocked with the planetary carrier.

Since the present invention is configured as described above, it has the following effects.
(1) A clutch device for a transmission that has a simple structure, low cost, small volume, and precise shift change operation.
(2) It is a clutch device for a transmission that has excellent practical industrial applicability and is highly economical.

Other features of the present invention will become apparent from the description of the specification and accompanying drawings.

1 is an exploded perspective view showing a schematic configuration of a clutch device for an internal transmission according to one embodiment of the present invention; FIG. 1 is a cross-sectional view after assembling a clutch device of an internal transmission according to an embodiment of the present invention; FIG. FIG. 3 is a schematic diagram showing the relationship between the sun gear and the shaft claw of the clutch device of the internal transmission according to one embodiment of the present invention; FIG. 4 is a schematic view of releasing the pawl by the pawl clutch ring of the clutch device of the internal transmission according to one embodiment of the present invention; FIG. 4 is a schematic diagram of closing a pawl by a pawl clutch ring (rotating 90 degrees as an example) of the clutch device of the internal transmission according to one embodiment of the present invention; 1 is a front view showing a cam base of a clutch device for an internal transmission according to one embodiment of the present invention; FIG. Fig. 7 is a left side view shown in Fig. 6; FIG. 8 is a left side view taken along line BB of FIG. 7; 1 is a configuration diagram showing a pawl shaft slider of a clutch device of an internal transmission according to one embodiment of the present invention; FIG. FIG. 10 is a right side view shown in FIG. 9; FIG. 10 is a plan view seen from above shown in FIG. 9; It is a schematic diagram showing the relationship between the planetary carrier, the cam base, the pawl shaft slider (advance), the left pawl shaft and the right pawl shaft of one embodiment of the present invention. 4 is a schematic diagram showing the relationship of the planetary carrier, the cam base, and the pawl shaft slider (backward) of the clutch device of the internal transmission according to one embodiment of the present invention before the planetary carrier drives the left pawl shaft and the right pawl shaft to rotate to a predetermined angle (for example, 90 degree rotation). FIG. 4 is a schematic diagram showing the relationship between the planetary carrier, the cam base, and the pawl shaft slider (advance) of the clutch device of the internal transmission according to the embodiment of the present invention after the planetary carrier drives the left pawl shaft and the right pawl shaft to rotate to a predetermined angle (for example, 90 degree rotation). FIG. FIG. 2 is a schematic diagram showing a left pawl shaft and a right pawl shaft of the clutch device of the internal transmission according to one embodiment of the present invention;

A clutch device for an internal transmission according to an embodiment of the present invention will be described below with reference to the drawings. It should be noted that the invention is not limited to the described embodiments.

First, a clutch device for an internal transmission according to one embodiment of the present invention will be described with reference to FIGS. 1 to 15. FIG.
The present invention comprises a clutch structure for an internal transmission.

As shown in FIGS. 1 and 2, the constituent members according to the embodiment of the present invention are an axle 1, a planetary carrier 2, a pawl 3, a sun gear 4, a cam base 5, a pawl clutch ring 6, a left pawl shaft 71, a right pawl shaft 72, a lever 8, a pawl shaft slider 81, an internal gear ring 9, a shaft claw 10, a gasket A, a planetary gear 21, a planetary gear shaft 22, a pawl return spring 31, and a sun gear collar 41. , a positioning ring 42 , a pawl shaft 7 , a pawl shaft return spring 73 , a positioning pin 74 and a shaft claw return spring 101 . A recessed guide groove 11 is provided on the axial surface of the axle 1 for positioning the lever 8 so as to be displaced in the axial direction. The planetary carrier 2 is meshed with the sun gear 4 via the planetary gear 21, and between the sun gear 4 and the axle 1, a shaft claw 10 controls whether the sun gear 4 is fixed or not. A pawl 3 is installed between the planet carrier 2 and the internal gear ring 9 and is combined with a pawl return spring 31 .

1 and 4 to 15, the cam base 5 is provided with a guide groove 51 for positioning the pawl shaft slider 81 of the lever 8 so as to be displaced in the axial direction, and a slope 52 for controlling the left pawl shaft 71 and the right pawl shaft 72 in combination with the pawl shaft slider 81. The inner peripheral surface of the pawl clutch ring 6 is provided as an inner cam surface 61 for controlling the opening and closing of the shaft claw 10 between the sun gear 4 and the axle 1, and the pawl clutch ring 6 is connected to the left pawl shaft 71 and the right pawl shaft 72 via the pawl shaft 7. The left pawl shaft 71 and the right pawl shaft 72 are connected to the pawl clutch ring 6 via the pawl shaft 7, the rear ends of the left pawl shaft 71 and the right pawl shaft 72 are in contact with the cam base 5, and the pawl ends of the left pawl shaft 71 and the right pawl shaft 72 are controlled by the pawl shaft slider 81 of the lever 8 and the slope 52 of the cam base 5 as to whether or not they are interlocked with the planetary carrier 2.

As shown in FIGS. 1 and 3 to 5, when the shaft claw 10 is deflected upward, the sun gear 4 is fixed and rotational power is output from the internal gear ring 9 as stepped acceleration. When the shaft claw 10 is pushed down, the sun gear 4 is freed, and the rotational power is directly output from the planetary carrier 2 and the pawl 3 at a speed ratio of 1, whereby the sun gear 4 is fixed or not fixed to achieve the shift change of the speed change function. When the shaft claw 10 is opened and closed by controlling the pawl clutch ring 6 to rotate to a predetermined angle (for example, 90 degree rotation), it is possible to control whether the sun gear 4 is fixed or not.

1 and 9 to 15, when the pawl shaft slider 81 of the lever 8 is on the right side (that is, when the pawl shaft slider 81 of the lever 8 is not pushed forward), the rear end of the right pawl shaft 72 is abutted by the pawl shaft slider 81 of the lever 8, and the right pawl shaft 72 is closed. When the pawl shaft slider 81 of the lever 8 moves to the left side (that is, after the pawl shaft slider 81 of the lever 8 is pushed forward), the rear end of the right pawl shaft 72 is no longer abutted by the pawl shaft slider 81 of the lever 8, the right pawl shaft 72 opens, and the planetary carrier 2, which is a member that requires rotation, rotates at a predetermined angle. When the right pawl shaft 72 automatically recovers to close after passing through the slope 52 of the cam base 5, the pawl shaft slider 81 of the lever 8 is abutted against the left pawl shaft 71 to complete the shift change operation in one time, and at the same time, the pawl shaft 7 is connected to the pawl clutch ring 6 and rotated step by step to achieve the opening and closing operation of the shaft claw 10, and the shaft claw 10 controls whether the sun gear 4 is fixed or not.

The present invention exhibits the following practical effects.
(1) A clutch device for an internal transmission that has a simple structure, low cost, small volume, and precise shift change.
(2) It is a clutch device for an internal transmission which is excellent in practical industrial applicability and highly economical.

As described above, the present invention is not limited to the above-described embodiments, and can be implemented in various forms without departing from the gist of the present invention.

1 Axle 11 Recessed guide groove 2 Planetary carrier 21 Planetary gear 22 Planetary gear shaft 3 Pawl 31 Pawl return spring 4 Sun gear 41 Sun gear collar 42 Positioning ring 5 Cam base 51 Guide groove 52 Slope 6 Pawl clutch ring 61 Inner cam surface 7 Pawl shaft 71 Left pawl shaft 72 Right pawl shaft 73 Pawl shaft return spring 74 Positioning pin 8 Lever 81 Pawl shaft slider 9 Internal gear ring 10 Shaft claw 101 Shaft claw return spring A Gasket

Claims (5)

A clutch device for an internal transmission, comprising an axle (1), a planetary carrier (2), a pawl (3), a sun gear (4), a cam base (5), a pawl clutch ring (6), a left pawl shaft (71), a right pawl shaft (72), a lever (8), a pawl shaft slider (81), a shaft claw (10), and an internal gear ring (9),
The left pawl shaft and the right pawl shaft are operated by the axial displacement of the pawl shaft slider of the lever and the slope (52) of the cam base to clutch the planetary carrier, which is a member requiring rotation,
and sequentially step-rotate by coupling the pawl shafts (7) of the left pawl shaft and the right pawl shaft with the pawl clutch ring,
controlling the opening and closing of the shaft claw between the axle and the sun gear by the pawl clutch ring;
A clutch device for an internal transmission, comprising controlling whether the sun gear is fixed or not fixed. 2. A clutch device for an internal transmission according to claim 1, wherein said cam base is provided with a guide groove (51) for positioning said pawl shaft slider of said lever so as to be displaced in the axial direction, and said slope for controlling said left pawl shaft and said right pawl shaft in combination with said pawl shaft slider. 2. A clutch device for an internal transmission according to claim 1, wherein an inner peripheral surface of said pawl clutch ring is provided as an inner cam surface (61) for controlling opening and closing of said shaft claw between said sun gear and said axle, and said pawl clutch ring is connected to said left pawl shaft and said right pawl shaft via said pawl shaft. 2. A clutch device for an internal transmission according to claim 1, wherein said left pawl shaft and said right pawl shaft are connected to said pawl clutch ring via said pawl shaft, and rear ends of said left pawl shaft and said right pawl shaft are in contact with said cam base. 2. A clutch device for an internal transmission according to claim 1, wherein the claw ends of said left pawl shaft and said right pawl shaft are controlled by said pawl shaft slider of said lever and said slope of said cam base so as to interlock with or not interlock with said planetary carrier.