JPH073077Y2 - Three-dimensional power transmission device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a three-dimensional power transmission device. More specifically, it relates to a device capable of transmitting power to an angular position of 0 ° to 360 °.

(Prior Art) The applicant previously filed a patent application (referred to as a prior invention) for a device capable of transmitting power to an angular position of 0 ° to 360 °, which is referred to as “rotary power transmission device” (prior invention). Three
-79582). This is, as shown in FIG. 2, an input shaft 1 having a bevel gear 2 at one end, an output shaft 4 having a bevel gear 3 at one end, and a bevel gear 5a meshing with the bevel gear 2 on the input shaft 1 side. And an idler bevel gear 5 integrally formed with the bevel gear 5a and the bevel gear 5b concentric with the bevel gear on the output shaft side and meshing with each other, the idler bevel gear 5 being an intermediate shaft 6 Relative to the input shaft 1 and the output shaft 4 by tightening the intermediate shaft 6 between the input shaft side casing 7 and the output shaft side casing 8 at a predetermined angular position between the input shaft and the output shaft. It can be fixed.

In this way, since the intermediate shaft orthogonal to these shafts is provided between the bevel gear on the input shaft side and the bevel gear on the output shaft side, and the idler bevel gears provided back to back are provided on the intermediate shaft, 360 ° in any direction. The power can also be transmitted to the input side and the output side, in particular, due to the back-to-back idler bevel gears, rotation in the same direction can be taken out.

(Problems to be Solved by the Invention) As described above, according to the prior invention, an intermediate shaft orthogonal to the bevel gear on the input shaft side and the bevel gear on the output shaft side is provided between the bevel gears, and the idler is provided back to back. By providing the bevel gear, the angular position of 0 ° to 360 ° could be changed two-dimensionally.

The present invention further develops this and makes it possible to change the three-dimensional angular position.

(Means for Solving the Problem by the Invention) An input shaft 10 having a bevel gear 13 at one end, an output shaft 18 having a bevel gear 17 at one end, a bevel gear 14a meshing with the bevel gear 13 on the input shaft 10 side, and The bevel gear 14a comprises an idler bevel gear 14 integrally formed with the bevel gear 14b concentric with the bevel gear 17 on the output shaft side and meshing with the bevel gear 14b, the idler bevel gear 14 being the input shaft side. The bearing 16 is mounted on the intermediate shaft 15 which also serves as a tightening bolt for fixing the connecting portion between the casing 12 and the output shaft side casing 20.
The input shaft 10 and the output shaft 18 are provided so as to be rotatable relative to each other.
A _first rotary power transmission device A _{1 in} which the intermediate shaft 15 is tightened with a nut at a predetermined angle position to fix the connecting portion between the input shaft side casing 12 and the output shaft side casing 20, and the first rotary type a second input rotary power transmission device a ₂ wherein a first rotary power transmission device a ₁ of the output shaft 18 and the second rotary power transmission device a ₂ having the same configuration as the power transmission device a ₁ At the same time as connecting the shafts, the output shaft side casing 20 of the first rotary power transmission device A _{1 and} the input shaft side casing of the second rotary power transmission device A ₂ were connected.

(Example) An example will be described with reference to FIG. As is clear from the figure, the three-dimensional power transmission device A according to the present invention is basically the same as the rotary power transmission device according to the previous invention (hereinafter simply referred to as a transmission device).
It is a combination of two. In FIG. 1, A ₁ is the first transmission device,
A ₂ is the second transmission device associated with it.

In FIG. 1, reference numeral 10 denotes an input shaft, which is provided with a bearing 11 and an input side casing.
It is rotatably built into the inside. A bevel gear 13 is integral with the input shaft 10. A connection shaft (not shown) is connected to the input shaft 10 by a spring pin, a key, a square shaft connection, or the like.

Reference numerals 14a and 14b are bevel gears forming the idler bevel gear 14, respectively, and are formed back to back and integrally with each other. The bearing 16 is attached to the intermediate shaft 15 which also serves as a tightening bolt for fixing the connecting portion between the input shaft side casing 12 and the output shaft side casing 20.
Relative rotation is possible via. Bevel gear 13 on the input side is bevel gear
A bevel gear 14b that meshes with 14a and rotates integrally therewith meshes with the output-side bevel gear 17.

The output-side bevel gear 17 is attached to the output shaft 18 that also serves as a connecting shaft with a key 18a, and the output-shaft-side casing 20 via a bearing 19a.
It is rotatably installed inside.

At the other end of the output shaft 18 which also serves as a connecting shaft, the output side bevel gear is provided.
A bevel gear similar to 17 is keyed, and a second transmission device A ₂ having the same configuration as the _first transmission device A ₁ is connected. The output shaft side casing 20 and the input shaft side casing 21 on the side of the second transmission device A ₂ are rotatably connected via an O-ring 22 and fixed at a predetermined angular position by a fixing device (not shown). .

Thus, by combining the first and second transmission devices A ₁ and A ₂ , it is possible to change the angle in three dimensions. That is, the input shaft is two-dimensionally laid by the first transmission device A ₁ .
The relationship between 10 and the output shaft 18 also serving as the connecting shaft can be changed by 360 °, and the output shaft 18 also serving as the connecting shaft in the second transmission device A ₂
A 360 ° angle can be two-dimensionally changed between the output shaft (not shown) (which serves as an input shaft in the second transmission device A ₂ ).

(Effect) Between the bevel gear on the input shaft side and the bevel gear on the output shaft side, an intermediate shaft orthogonal to these shafts is provided, and an idler bevel gear provided back to back is provided on this intermediate shaft to provide 360 ° in two dimensions. Transmission device capable of transmitting power in any direction
Since two sets of A ₁ and A ₂ are combined, even if the input side and the final output side are on different planes, they are three-dimensionally 0 ° to 360 °
The angle position of the can be adjusted, enabling extremely flexible power transmission.

Especially, since the intermediate shaft that rotatably supports the idler bevel gear is also used as the tightening bolt that joins the connecting portion between the input shaft side casing and the output shaft side casing, the configuration is simple and the angle setting is extremely easy. became.

[Brief description of drawings]

FIG. 1 is a partially cutaway view of a transmission device according to the present invention. FIG. 2 is a sectional view of the transmission device according to the previous invention. In FIG.; A ...... 3-dimensional power transmission device A ₁ ...... first rotary power transmission device A ₂ ...... second rotary power transmission device 1 ...... input shaft, 2 ...... bevel gears 3 ...... umbrella Gears, 4 ... Output shaft 5 ... Idler bevel gears, 5a, 5b ... Bevel gears 6 ... Intermediate shaft 7 ... Input shaft side casing 8 ... Output shaft side casing 10 ... Input shaft, 11a, 11b ... … Bearing 12 …… Input side casing, 13 …… Bevel gear 14 …… Idler bevel gear, 14a, 14b …… Bevel gear 15 …… Intermediate shaft, 16 …… Bearing 17 …… Output side bevel gear 18 …… Coupling shaft Output shaft 18a ……, keys, 19a, 19b …… Bearing 20 …… Output shaft side casing 21 …… Input shaft side casing 22 …… O ring

Claims (1)

[Scope of utility model registration request] 1. An input shaft (10) having a bevel gear (13) at one end.
An output shaft (18) having a bevel gear (17) at one end, a bevel gear (14a) meshing with the bevel gear (13) on the input shaft (10) side, and a concentric core with the bevel gear (14a). The idler bevel gear (14) integrally formed with the bevel gear (17) on the output shaft side and the bevel gear (14b) meshing with each other in a back-to-back relationship with each other. An intermediate shaft (15), which also serves as a tightening bolt for fixing the connecting portion between the side casing (12) and the output shaft side casing (20), is rotatably provided via a bearing (16), and is connected to the input shaft (10). A first rotary power transmission in which the intermediate shaft (15) is tightened with a nut at a predetermined angular position with respect to the output shaft (18) to fix the connecting portion between the input shaft side casing (12) and the output shaft side casing (20). apparatus and (a _1), the first rotary power transmission device (a ₁₎ second rotary power transmission device having the same configuration as the (a _2), before The first rotary power transmission device (A ₁₎ of the output shaft (18) and the first rotary power transmission device and at the same time coupling the input shaft of the second rotary power transmission device (A ₂₎ (A ₁₎ A three-dimensional power transmission device comprising an output shaft side casing (20) and an input shaft side casing of the second rotary power transmission device (A ₂ ) connected to each other.