WO2011065466A1 - Rotational drive force transmission apparatus - Google Patents

Abstract

Provided is a rotational drive force transmission apparatus which is capable of reducing load with respect to an input means such as a motor and decreasing the energy required for the input of, for example, electrical power to be consumed, thereby improving output efficiency. The rotational drive force transmission apparatus is provided with an input shaft (6) which has an input gear (8), and an output shaft (6a) which is supported so as to be coaxial with the input shaft (6). The input gear (8) rotatably drives a driven gear (12) integrated with a pair of internal gears (11) that internally mesh with a stationary inner gear (10). The gear shafts of the internal gears (11) are supported at a short rotary arm (14) provided with a drive bevel gear (15). A rotary drive force, which is transmitted from the drive bevel gear (15) through a plurality of bevel gears to a first intermediate gear (28), may be transmitted by way of two intermediate gears to a stationary gear (33) which does not rotate. The upper and lower positions of an intermediate gear (31), which is one of two intermediate gears located between the first intermediate gear (28) and the stationary gear (33) and which engages with the first intermediate gear (28), do not change when the input shaft (6) and the output shaft (6a) thereof revolve as shafts.

Description

Rotational driving force transmission device

The present invention relates to a rotational driving force transmission device, more specifically, a vehicle, a bicycle, a generator, an internal combustion engine, a waste paper cutter (shredder), various machine tools, and other machine tools that require rotational driving force such as a motor. The present invention relates to a rotational driving force transmission device that is used between the mechanical instrument and the rotational driving source or incorporated in the mechanical instrument when transmitting the rotational driving force from the rotational driving source.

Conventionally, in machinery and equipment that requires rotational driving force such as the above-mentioned generators, even if a transmission that merely converts the rotational speed is interposed, the rotational driving force is increased to reduce power consumption. There is no idea to interpose such a transmission device. That is, the idea that such a transmission device has a large mechanical loss and conversely increases power consumption is dominant. *

However, the present inventors have continued the above idea and have proposed various rotational driving force transmission devices. Although they have achieved some results, they have not yet been able to fully meet industry demands.

Japanese Patent Laid-Open No. 2001-21020 Japanese Patent Laid-Open No. 2003-247609 JP 11-108126 A

As described above, in a device that requires a rotational driving force such as a conventional generator, the mechanical loss is large and without using a transmission device that results in an increase in power consumption. It is driven directly by a motor or the like, and there has been little thought of reducing the load on the motor or the like and improving the output efficiency. *

Accordingly, the present invention provides a rotational driving force transmission device that can reduce the load on the input means such as the motor and reduce the energy required for input of power consumption and the like, thereby improving the output efficiency. Is an issue.

An invention according to claim 1 for solving the above-described problem is an input shaft to which an input gear is fixed and is pivotally supported by one end frame, and inputs a rotational driving force from an input means, and the input shaft And an output shaft that is pivotally supported on the other end frame and outputs an increased rotational driving force, and the input gear is fixed to the one end frame and does not rotate. A driven gear integrated with a pair of inscribed gears that are in mesh with the inner gear is driven to rotate, and the gear shafts of the pair of inscribed gears are each provided with a drive bevel gear and freely rotate around the input shaft. The inner bevel gear of a pair of vertical gear shafts that are pivotally supported in the short rotating arm and arranged in a direction orthogonal to the input shaft and attached to both ends are engaged with the drive bevel gear; The outer teeth of the outer side Is engaged with the intermediate bevel gear of a horizontal gear shaft that is arranged in parallel to the input shaft and has a bevel gear mounted in the middle, and the rotational drive of the first intermediate gear that is attached to the end of each horizontal gear shaft A long length that is transmitted to a stationary gear that is fixed to the other end frame and does not rotate via two intermediate gears, is supported by the input shaft, and supports each vertical gear shaft. A rotating arm and an output arm having a shaft support portion that supports the end portion of the input shaft on one surface side and is fixed to the other surface side on the one surface side, are connected to the rotation arm, and installed. The gear shafts of the two intermediate gears between the first intermediate gear and the stationary gear are fixed to the output arm, and the inside of the two intermediate gears between the first intermediate gear and the stationary gear. The vertical position of the intermediate gear meshing with the first intermediate gear Characterized in that it does not change during the revolution of the said input shaft and the output shaft as an axis, a rotation driving force transmission device. *

By considering the output shaft as an input shaft, the above configuration can be configured to be connected in a plurality of stages. Preferably, a balance weight is attached to an end of the horizontal gear shaft opposite to the first intermediate gear installation side.

In the rotational driving force transmission device according to the present invention, first, in the process of transmitting the rotational driving force to the stationary internal gear fixed to the end frame, the input is primarily increased by the action of the lever. In addition, this principle acts in the process of transmitting the rotational driving force in a straight gear train, including the intermediate gear whose vertical position does not change when revolving around the input shaft and output shaft, and the input is performed secondarily. Increase of power is made. Therefore, by arranging this device between the input part and the output part of the rotational power, it becomes possible to output the increased rotational driving force, thereby reducing the power consumption and the like in the output efficiency. It can be improved and greatly contributes to energy saving, and can be used by being attached to a vehicle, a generator, a machine tool, and other devices that require various rotational driving forces.

It is a longitudinal cross-sectional view which shows the whole structure at the time of setting it as 3 steps | paragraphs as an Example of the rotational driving force transmission apparatus which concerns on this invention. It is a longitudinal cross-sectional view which shows the structure of the 1st step | paragraph in the Example shown in FIG. It is a disassembled perspective view which shows the structure of the 1st step | paragraph in the Example shown in FIG. It is a figure for demonstrating the effect | action of the 1st principal part in the Example shown in FIG. It is a figure for demonstrating the effect | action of the 2nd principal part in the Example shown in FIG. It is a figure which shows the method of the experiment conducted in order to confirm the effectiveness of this invention.

A mode for carrying out the present invention will be described with reference to the accompanying drawings. The device according to the present invention can be configured from one stage of gear combination from input to output, but in order to obtain high output with higher efficiency, basically a group of gears having the same configuration are arranged in several stages. You can also The illustrated example has a three-stage configuration. *

FIG. 1 is a longitudinal sectional view showing the overall configuration, FIG. 2 is an enlarged sectional view of the first stage, and FIG. 3 is an exploded perspective view of the first stage. In the figure, reference numeral 1 denotes a base, and end frames 2 and 3 are erected on both ends thereof. In the case of a multi-stage configuration, there is one intermediate frame between the end frames 2 and 3 in the case of a two-stage configuration, and two intermediate frames 4 and 5 in the case of a three-stage configuration as illustrated. It is erected (see FIG. 1). Therefore, the intermediate frame 4 becomes the end frame 2 in the case of the one-stage configuration, and the intermediate frame 5 becomes the end frame 2 in the case of the two-stage configuration. In order to reduce the weight of the entire apparatus, the frames 2 to 5 are formed in a cross shape, for example. *

As will be apparent from the figure, each part described later constituting the transmission means rotates around the input shaft 6, and the parts constituted by the pairs are arranged symmetrically around the input shaft 6. The *

A shaft support cylinder 7 that supports an input shaft 6 that is rotationally driven by an external driving means such as a motor, a water wheel, a windmill, or the like is installed at an intermediate intersection of the end frame 2 on the input side. An input gear 8 is fixed to the input shaft 6 at a portion inside the shaft support cylinder 7. In addition, a stationary inner gear 10 is vertically installed on the end frame 2 via several support legs 9, and a pair of inscribed gears 11, 11 a are disposed in mesh with the stationary inner gear 10. The *

On the end frame 2 side of each of the inscribed gears 11 and 11a, driven gears 12 and 12a that are externally meshed with the input gear 8 are fixed coaxially with the inscribed gears 11 and 11a, respectively. Rotates integrally with the driven gears 12 and 12a. Each inscribed gear 11, 11 a and the common gear shafts 13, 13 a of the driven gears 12, 12 a integrated therewith are respectively short rotating arms 14 that are rotatably attached to the input shaft 6 via bearings. It is pivotally supported at the end. *

The short rotary arm 14 is integrally provided with a drive bevel gear 15 attached to the input shaft 6 via a bearing, and the drive bevel gear 15 is integrated with the short rotary arm 14 and can freely move around the input shaft 6. Rotate. A pair of driven bevel gears 16 and 16 a mesh with the drive bevel gear 15. The vertical gear shafts 17 and 17a of the driven bevel gears 16 and 16a are arranged so as to be orthogonal to the input shaft 6 in the horizontal state, and two lengths are rotatably attached to the input shaft 6 via bearings, respectively. It is pivotally supported by the scale rotation arm 18. *

The long rotary arm 18 has end brackets 19 and 19a at both ends, and two intermediate brackets 20 and 20a with the input shaft 6 interposed therebetween. Each of these brackets includes a bearing, and the vertical gear shafts 17 and 17a are pivotally supported by the bearings of the end brackets 19 and 19a and the bearings of the intermediate brackets 20 and 20a, respectively. Further, the end portions of the end brackets 19 and 19a are bent and extended in the length direction of the long rotary arm to form vertical brackets 21 and 21a, and bearings are installed on the vertical brackets 21 and 21a, respectively. *

First intermediate bevel gears 22 and 22a are attached to the end portions of the vertical gear shafts 17 and 17a protruding from the end brackets 19 and 19a, and are engaged with the first intermediate bevel gears 22 and 22a. Gears 23 and 23a are provided. The horizontal gear shafts 24 and 24a of the second intermediate bevel gears 23 and 23a are arranged so as to be orthogonal to the vertical gear shafts 17 and 17a, and are long via the bearings of the vertical brackets 21 and 21a and the connecting plates 25 and 25a. The shaft is supported so as to be parallel to the input shaft 6 with a bearing provided on an output arm 26 integrated with the scale rotary arm 18. *

The horizontal gear shafts 24, 24a extend on both sides of the second intermediate bevel gears 23, 23a, and balance weights 27, 27a are attached to ends protruding from the bearings of the vertical brackets 21, 21a. The first intermediate gears 28 and 28 a are attached to the end portions protruding from the bearings 26. *

Further, two pairs of gear shafts (29, 29a), (30, 30a) are fixed to the output arm 26 so as to be positioned inside the horizontal gear shafts 24, 24a. Of the pair of gear shafts 29 and 29a near the horizontal gear shafts 24 and 24a, the second intermediate gears 31 and 31a meshing with the first intermediate gears 28 and 28a are pivotally supported, and the pair of gear shafts near the input shaft 6 is supported. In 30, 30a, the third intermediate gears 32, 32a meshing with the second intermediate gears 31, 31a are pivotally supported. Each of the third intermediate gears 32 and 32a is fixed to a shaft support cylinder 35 installed on the end frame 3, and meshes with a stationary gear 33 that does not rotate. *

The horizontal gear shafts 24 and 24a, the pair of outer gear shafts 29 and 29a, the pair of gear shafts 30 and 30a on the inner side, and the input shaft 6 are in a straight line as shown in FIG. Placed in. Further, the number of teeth of the first intermediate gears 28 and 28a, the second intermediate gears 31 and 31a, the third intermediate gears 32 and 32a, and the stationary gear 33 is revolved around the input shaft 6 as described later. Is set so that the second intermediate gears 31 and 31a do not rotate. *

Here, the fact that the second intermediate gears 31 and 31a do not rotate means that the upper and lower sides do not change during the revolution (please assume the movement of the gondola in the Ferris wheel). Note that it means rotation in meaning. *

The output arm 26 has a shaft support portion 34 provided with a bearing only on the input side, that is, the long rotary arm 18 side, at the center thereof, and the shaft support portion 34 supports the inner end portion of the input shaft 6. To do. On the other hand, the output shaft 6 a is fixed to the output side of the shaft support portion 34 so that the input shaft 6 and the shaft center coincide with each other. Therefore, the rotation of the input shaft 6 is not directly transmitted to the output arm 26, but the output shaft 6a rotates integrally with the output arm 26 and outputs it. The output shaft 6a transmits the rotational driving force from the first stage to the second stage, and corresponds to the input shaft 6 when viewed from the second stage (see FIG. 1). *

As described above, in the second stage configuration, the output shaft 6a in the first stage configuration corresponds to the input shaft 6 in the first stage configuration, and the intermediate frame 4 in the second stage configuration is the first stage configuration. Corresponding to the end frame 2 in the configuration, the connection relationship between the components is the same as in the first stage configuration. Therefore, in order to avoid redundant description, detailed description of each part of the second stage is omitted. *

In the third stage configuration, the output shaft 6b in the second stage configuration corresponds to the input shaft 6 in the first stage configuration, and the end frame 3 corresponds to the intermediate frame 4 in the first stage configuration. The final output shaft 6c corresponds to the output shaft 6a, and the connection relationship between the components is the same as that in the first stage configuration. Therefore, in order to avoid redundant description, detailed description of each part in the third stage is omitted. The same applies to the fourth stage configuration, the fifth stage configuration, and the like.

In the first stage of the above configuration, when the input shaft 6 rotates in response to input from an input means such as a motor, the input gear 8 that is fixed to the input shaft 6 rotates integrally with the input shaft 6, Accordingly, the driven gears 12 and 12a meshing with the input gear 8 and the internal gears 11 and 11a integrated with the driven gears 12 and 12a are rotationally driven. At this time, the rotation of the input shaft 6 is not directly transmitted to the short arm 14, the long arm 18, and the output arm 26 that are supported by the input shaft 6. *

The inscribed gears 11 and 11a are in mesh with the stationary inner gear 10 that is fixed to the end frame 2 and does not rotate by itself. As a result, when the input gear 8 is rotated in the direction of arrow a in FIG. 4, the driven gear 12 and the inscribed gears 11 and 11a integrated with the driven gears 12 and 12a try to rotate in the direction of arrow b, respectively. . The rotational driving force that attempts to rotate the driven gears 12 and 12a (and the inscribed gears 11 and 11a) in the direction of the arrow b causes the stationary inner gear 10 to move in the direction of the arrow c via the inscribed gears 11 and 11a. Acts to rotate. *

However, since the stationary internal gear 10 is fixed and does not rotate, the inscribed gears 11 and 11a receive a reaction from the contact point with the stationary inner gear 10 and further input from the input gear 8 continues. , 11a revolves in the arrow d direction along the inner periphery of the stationary inner gear 10 while rotating in the arrow b direction. *

In the revolving operation of the inscribed gears 11 and 11a (driven gears 12 and 12a), the principle of the lever works primarily. That is, when the moment of the revolution operation is seen, the contact point between the input gear 8 and the driven gears 12 and 12a becomes a power point, the contact point between the stationary internal gear 10 and the internal gears 11 and 11a serves as a fulcrum, and the gear shafts 13 and 13a act. It is a point. In this way, as a result of the gear shafts 13 and 13a being the action point being between the power point and the fulcrum, the rotational driving force (the force to be revolved) at the gear shafts 13 and 13a being the action point is the input that is the power point. The rotational driving force from the input gear 8 applied to the contact point between the gear 8 and the driven gears 12 and 12a is increased. *

The movements of both the inscribed gears 11 and 11a (driven gears 12 and 12a) that revolve by being increased in this way are the short arm 14 to which the ends of the gear shafts 13 and 13a are connected, and the short arm. The short arm 14 and the drive bevel gear 15 are rotated in the direction of arrow d in FIG. 5 about the input shaft 6. *

The increased rotational driving force of the drive bevel gear 15 is transmitted to a pair of drive bevel gears 16 and 16a meshed therewith, and from the first intermediate bevel gears 22 and 22a on the opposite side via the vertical gear shafts 17 and 17a. , And are transmitted to the second intermediate gear wheels 23 and 23a meshing with them. The rotation of the second intermediate gear gears 23 and 23a is transmitted to the first intermediate gears 28 and 28a via the horizontal gear shafts 24 and 24a. *

After that, as shown in FIG. 5, the first intermediate gears 28 and 28a rotating in the direction of the arrow e try to rotate the second intermediate gears 31 and 31a meshing with the first intermediate gears 28 and 28a in the direction of the arrow f. The gears 31, 31a try to rotate the third intermediate gears 32, 32a meshing with them in the direction of arrow g, and the third intermediate gears 32, 32a try to rotate the stationary gears 33 meshing with them in the direction of arrow h. And *

However, the stationary gear 33 is fixed to the shaft support cylinder 35 and does not rotate, and as a result of the third intermediate gears 32 and 32a continuing to rotate the stationary gear 33, the third intermediate gears 32 and 32a are While rotating in the direction of the arrow g, it revolves along the stationary gear 33 in the direction of the arrow i, so that the output arm 26 to which the gear shafts 30 and 30a are fixed has the arrow about the input shaft 6 as an arrow. Rotate in i direction. *

At the same time, the long arm 18 integrated with the output arm 26 via the connecting plate 25, and the parts directly or indirectly attached to the long arm 18, that is, the driving bevel gears 16, 16a. The vertical gear shafts 17 and 17a, the first intermediate bevel gears 22 and 22a, the second intermediate bevel gears 23 and 23a, the horizontal gear shafts 24 and 24a, and the balance weights 27 and 27a are integrated with the output arm 26. The shaft 6 is rotated in the direction of arrow i about the axis. *

In the process of transmitting the rotational driving force between the first intermediate gears 28, 28a to the second intermediate gears 31, 31a, the third intermediate gears 32, 32a, and the stationary gear 33, secondarily, This principle works. That is, the contact point between the third intermediate gears 32 and 32a and the stationary gear 33 serves as a fulcrum, and the contact point between the first intermediate gears 28 and 28a and the second intermediate gears 31 and 31a serves as a force point, and the gear shafts 29, 29a, 30 and 30a serve as action points and act on the output arm 26. As a result, the output arm 26 is rotationally driven around the input shaft 6 integrally with the output shaft 6. *

Here, as described above, it is important that the second intermediate gears 31 and 31a do not rotate (they do not change up and down during the revolution) and move like a gondola in a ferris wheel. The first intermediate gears 28 and 28a, the second intermediate gears 31 and 31a, and the third intermediate gears 32 and 32a constitute one rod-like body by the second intermediate gears 31 and 31a performing such a movement. That is why this principle works. If the second intermediate gears 31 and 31a are configured to rotate, the rod-like body collapses and the force escapes, and this principle no longer works. *

The rotation of the output arm 26 is transmitted from the output shaft 6a integral with the output arm 26 to the second stage input gear fixed to the output shaft 6a. The rotation output of the output arm 26 is the gear shaft 29, 29a, 30, 30a that is the point of action. Is between the power point and the fulcrum, the rotational driving force (the force to revolve) in the gear shafts 13 and 13a is between the first intermediate gears 28 and 28a and the second intermediate gears 31 and 31a, which are the power points. The rotational driving force from the first intermediate gears 28 and 28a applied to the contact is increased. *

Also in the second stage, a boost is performed by the same action as the first stage and output to the third stage, and in the third stage, a boost is performed by the same action as the first stage and output to the outside. Therefore, as the number of stages increases, an output increased with respect to the input can be obtained. *

In order to confirm the effectiveness of the apparatus according to the present invention, an experiment as shown in FIG. 6 was performed. That is, the device 64 according to the present invention is connected between a DC motor 61 (95 V, 13 A) that uses a 96 V battery 60 as a power source and a generator 62 with a rated output of 100 V and 15 A that charges the battery 60 via the controller 63. An intervening one was prepared, and a voltmeter and an ammeter were respectively arranged on the output side of the generator 62 and the input side of the motor 61, and the respective values were observed. *

In the above experiment, the motor switch 65 is turned on, the DC motor 61 is driven using the battery 60 as a power source, the generator 62 is started via this device 64, and the operation of each device is continued while charging the battery 60. Observed. At that time, since the output of the device 64 has a sufficient margin, it was output externally. And when it measured after carrying out continuous operation for a while, the output of the generator 62 maintained 100V and 15A, and the input value to the DC motor 61 was 95V and 13A, respectively. *

Next, when the motor switch 65 was turned off and the input from the battery 60 to the DC motor 61 was stopped and observed, the device 64 continued to rotate without any signs of stopping for a while. The voltage value on the output side of the generator 62 at that time was 100 V and the current value remained at 15A. In the apparatus according to the present invention, it was confirmed that the output continues without stopping the rotation operation even after the input from the battery 60 is thus stopped. *

Further, when the input shaft 6 was rotated by applying a load of 1 kg, several tens of kg of heavy objects could be lifted on the output shaft 6a side. That is, the output in this case is increased several tens of times with respect to the input. As described above, such a result was obtained because the principle was applied in two stages in one mechanism and the force was increased. *

Although the present invention has been described in some detail with respect to its most preferred embodiments, it will be apparent that a wide variety of different embodiments can be constructed without departing from the spirit and scope of the invention, the invention being defined by the appended claims. It is not restricted to the specific embodiment other than limiting in.

Claims (3)

The input gear is fixed and is pivotally supported by one end frame, and is input to the other end frame at the same axis as the input shaft for inputting the rotational driving force from the input means, An output shaft that outputs an increased rotational driving force, and the input gear is driven integrally with a pair of internal gears that are fixed to the one end frame and internally mesh with a stationary internal gear that does not rotate. The gear shafts of the pair of inscribed gears are each provided with a drive bevel gear and supported by a short rotating arm that freely rotates about the input shaft, and is perpendicular to the input shaft. The inner bevel gear of a pair of vertical gear shafts, which are arranged and fitted with bevel gears at both ends, meshes with the drive bevel gear, and the outer bevel gear is parallel to the input shaft. Placed in the middle Meshed with the intermediate gear gear of the horizontal gear shaft to which the gear is attached, and the rotational driving force of the first intermediate gear attached to the end of each horizontal gear shaft is transmitted to the other via the two intermediate gears. It can be transmitted to a stationary gear that is fixed to the end frame and does not rotate, and is supported by the input shaft and a long rotary arm that supports each of the vertical gear shafts. And an output arm having a shaft support portion to which the end portion of the output shaft is fixed on a multi-sided side, and connected to the two intermediate portions between the first intermediate gear and the stationary gear. Each gear shaft of the intermediate gear is fixed to the output arm, and the vertical position of the intermediate gear meshing with the first intermediate gear of the two intermediate gears between the first intermediate gear and the stationary gear is The input shaft and the output shaft are the axes. Characterized in that it does not change during the revolution Te, rotational driving force transmission device. A rotational driving force transmission device in which the configuration according to claim 1 is arranged in a plurality of stages by considering the output shaft as an input shaft. The rotational driving force transmission device according to claim 1 or 2, wherein a balance weight is attached to an end of the horizontal gear shaft opposite to the first intermediate gear installation side.

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