JP2001074110A - Drive devide for rotary machinery and garbage disposer incorporating same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To downsize drive device for a rotary machinery in the direction of an output shaft while maintaining the interchangeability with respect to a presently used general-purpose drive device, and to apply this drive device to a garbage disposer which can therefore be compact. SOLUTION: In a drive device 40 for a rotary machine, comprising a motor 42, a transmission 44 for transmitting rotation from the motor shaft 42A of the motor 42 to an output shaft 52, and a gear box 46 for storing the transmission 46, the motor shaft 42A is extended perpendicular to the output shaft 52 so as to shorten the drive device in the direction of the output shaft 52. Bolt holes 54 for attaching the drive device to an associated machine are formed in the gear box 46 in parallel with the output shaft 52 at apex positions of an imaginal square in a plane perpendicular to the output shaft 52, and the output shaft 52 is extended so that the center axis of the output shaft 52 is located at a position shifted from the center of the imaginal square 56 and having an equal distant to the adjacent apices.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotating apparatus integrally connected to a motor, a transmission connected to the motor shaft and transmitting the power of the motor, and a gear box accommodating the transmission. The present invention relates to a driving device for a machine, and a garbage disposal machine that uses the driving device to ferment and decompose garbage discharged from general households and the like.

[0002]

2. Description of the Related Art JP-A-7-290032 and JP-A-10-5729 disclose garbage in which garbage discharged from ordinary households is fermented by utilizing the action of a fermentation accelerator and decomposed. Both processors are disclosed.

[0003] These garbage processing machines are generally provided with a fermentation tank capable of receiving garbage and a fermentation accelerator (organic substance decomposing bacteria, water, etc.), and a fermentation tank provided inside the fermentation tank and having a radially outer surface. A rotatable stirring shaft capable of stirring the garbage and the fermentation accelerator by a stirring blade attached outward in the direction,
And a drive device for driving the stirring shaft to rotate.

In this garbage disposal machine, garbage, a fermentation promoter, water and the like are put into a fermentation tank, and the garbage and the like are stirred by the stirring blades while performing predetermined heating and ventilation. It promotes fermentation and eventually composts.

[0005] A driving device for a garbage disposer disclosed in Japanese Patent Application Laid-Open No. 7-290032 uses a pinion provided on a motor shaft of a motor fixed to an outer peripheral surface of a fermenter. The transmission is performed by a reduction gear train including an intermediate gear provided on the outer peripheral surface of the fermenter and a gear fixed to the shaft end of the stirring shaft.

[0006] In addition, in a driving device of a garbage disposer disclosed in Japanese Patent Application Laid-Open No. 10-5729, a motor is installed outside the fermenter by a separate fixing means, and the rotational force of the motor is transmitted to a sprocket and a chain. Through to the stirring shaft.

However, the above-mentioned driving device requires a large mounting space for a reduction gear train, a chain, and the like, and as a result, it has been difficult to reduce the size of the garbage disposer. Further, since the structure is such that the chain and the reduction gear train are directly exposed, it is not preferable in terms of safety. To avoid this, a separate cover must be attached.

As a solution to these problems, FIG.
No. 3, there is a garbage processing machine 1 disclosed in Japanese Patent Application Laid-Open No. 7-136620.

This garbage processing machine 1 can receive garbage and a fermentation accelerator (not shown) as its main body (a driven device: a partner machine as seen from the driving device), similarly to the above-described processing machine. A fermenter 2 and a stirring shaft 6 which is a rotatable shaft member disposed in the fermenter 2 and is capable of stirring the garbage and the fermentation promoter by a stirring spring 4 provided substantially radially on the outer peripheral surface. And.

As shown in FIGS. 14 and 15, a driving device 8 coaxially connected to the stirring shaft 6 has a motor 10 and a motor shaft 10A connected to the motor shaft 10A. Rotation of the first and second intermediate shafts 18,
A transmission 12 (partially omitted from the drawings) that can be transmitted to the output shaft 16 via the transmission shaft 20 is integrally combined.

The gear box 14 of the transmission 12 has a bolt hole 34 for mounting the driving device to a mating machine.
It is formed through the gear box 14 at the vertex position of a virtual square 14B on a plane 14A perpendicular to the output shaft 16. The motor shaft 10A of the motor 10 and the output shaft 16 are parallel.

The axis of the output shaft 16 is displaced from the center of the virtual square 14B, and more specifically, a pair of adjacent bolt holes 34 (virtual square 1B).
4B are located at the same distance from a set of adjacent vertices.

On the other hand, the fermenter 2 is provided with the bolt holes 3.
4 are formed, and a stirring shaft through hole 2A through which the stirring shaft 6 can penetrate at the same position as the output shaft 16 is formed.

As shown in FIG. 15, the transmission 12 has a three-stage reduction structure including the first intermediate shaft 18 and the second intermediate shaft 20 so as to be parallel to the output shaft 16.
Further, a helical pinion 22 formed integrally with the motor shaft 10A, a first helical gear 24 fixed to the first intermediate shaft 18 and capable of meshing with the helical pinion 22, and fixed to the first intermediate shaft. The first pinion 26
And the first pinion 2 fixed to the second intermediate shaft 20.
6, a second pinion 30 fixed to the second intermediate shaft 20, and an output shaft gear 3 fixed to the output shaft 16 and meshable with the second pinion 30.
2 so as to be as compact as possible. Although FIG. 15 shows a three-speed transmission structure, generally, a two- to six-speed reduction structure is known.

The driving device 8 has the following advantages since it is configured as described above.

A) Since the bolt holes 34 for mounting the driving device 8 to the counterpart machine are formed at the apexes of the virtual square 14B, the mounting bolt holes 2B on the counterpart machine side are also corresponding to the bolt holes 34. What is necessary is just to form it at the vertex position of a (very simple) virtual square, and it is possible to prevent the four bolt holes 2B from being misplaced relative to each other as compared with the case of forming them at the vertex positions of a rectangle, a regular pentagon, a regular hexagon, or the like. You.

B) The installation position of the driven shaft (for example, the stirring shaft 6) on the partner machine side is equidistant from a set of adjacent bolt holes among the four bolt holes 2B on the partner machine side. Since the position may be set to the position, a mistake in which the relative positions of the four bolt holes 2B with respect to the position of the driven shaft are shifted is reduced. That is, in the gear box 14 of the driving device 8, the arrangement of the bolt holes 34 and the output shaft 16 is line-symmetric with respect to a perpendicular bisector to a pair of adjacent vertices of the virtual square 14B. The dimensions of the mounting bolt holes 2B on the mating machine side including the driven shaft can be easily determined.

The advantages (A) and (B) are particularly effective when the bolt hole 2B of the counterpart machine is machined on site because the drive unit 8 is attached to the relative machine later.

C) The driving device 8 can be directly and easily fixed to the main body (the mating machine) on the flat surface 14A (mounting surface) of the gear box 14 from which the output shaft 16 projects.

D) In the driving device 8, since the transmission 12 is covered by the gear box 14,
-290032 and those disclosed in JP-A-10-5729 (exposed structures) are superior in safety.

In the garbage disposer, the stirring shaft 6 needs a considerable rotating torque in order to sufficiently stir the garbage and the like. The driving device 8 is widely used because of the above advantages.

Further, since the driving device 8 having the mounting plane 14A as described above has many advantages,
At present, it is widely used in fields other than the garbage disposer, and a plurality of manufacturers have the same mounting dimensions as the drive unit 8 (the position and size of the mounting bolt hole 34 and the output shaft 16 are the same). As a result, many things are sold, making it one of the de facto standards.

For this reason, the main body (the mating machine side) is also often set to a fitting dimension corresponding to this in advance.

[0024]

However, since the output shaft 16 and the motor shaft 10A are arranged in the same direction (coaxial) in the driving device 8, as shown in FIG.
There is a problem that the axial size of the stirring shaft 6 including the driving device 8 is increased. Therefore, the whole garbage disposal machine 1 becomes larger than the size of the fermenter 2, which is contrary to the demand for space saving in household garbage disposal machines and the like.

Further, since the entire drive unit protrudes largely from the mounting surface (flat surface 14A) in a cantilever state, an overload is likely to be generated in the mounting portion (for example, when a user applies a load). It was necessary to increase the rigidity of.

On the other hand, since the driving device 8 is one of the practical standards as described above, the fermenter 2 having the stirring shaft through-holes 2A and the bolt holes 2B already formed, There is a demand that the shaft 6 be used without any design change.
This is not limited to the field of refuse treatment machines, and there are similar needs in many industrial fields.

In particular, in recent years, there has been a trend in all industrial fields for modularization (a situation in which a part maker completes each part to some extent and delivers it to an assembly company). In such a situation, the manufacturer of each module (for example, the fermenter 2 and the stirring shaft 6 in the garbage disposer 1 already assembled) on the side of the driven device (the counterpart machine) is virtually Usually, standard dimensions are prepared in advance. Therefore, a trader who purchases and assembles this module has no choice but to use the above-described conventional driving device 8.

As a result, in many industrial fields using the drive unit 8, the rotary machine including the drive unit 8 is increased in size, and it is considered that economic loss such as manufacturing cost is large.

The present invention has been made in view of the above-described problems, and maintains complete compatibility with a drive for a rotary machine widely used in many industrial fields, while maintaining the compatibility in the output shaft direction. By providing a drive device for a rotary machine with a reduced size, a drive option applicable to a connection size of a driven device (a partner machine), which has become one of the de facto standards, is provided. It is an object of the present invention to reduce the size and cost of the entire rotating machine including this drive device.

Further, in the field of garbage disposal, it is another object of the present invention to reduce the size and cost of the garbage disposal by using this driving device.

[0031]

According to the first aspect of the present invention,
A drive device for a rotary machine, comprising a motor, a transmission that transmits rotation of a motor shaft of the motor to an output shaft, and a gear box capable of housing the transmission, wherein the motor shaft is provided with the output. A bolt hole is provided in the gear box, which is disposed perpendicular to the shaft and for attaching the driving device to a mating machine, at a vertex position of a virtual square on a plane perpendicular to the output shaft, in parallel with the output shaft. In addition, the output shaft is disposed such that the axis of the output shaft is shifted from the center of the virtual square and is equidistant from a pair of adjacent vertices. The above object has been achieved by a driving device for a rotary machine.

In the gear box, a projection parallel to the output shaft and closest to the output shaft is provided with a projecting portion capable of expanding the internal space of the gear box. A part of the output shaft gear that rotates integrally with the shaft may be accommodated (claim 2).

According to a third aspect of the present invention, there is provided a fermentation layer capable of receiving garbage and a fermentation promoter, and a rotatable shaft member disposed in the fermentation layer, wherein a stirring blade is provided on the outer peripheral surface. A stirrer shaft capable of stirring the garbage and the fermentation accelerator, comprising: a drive unit for a rotary machine according to any one of claims 1 and 2, wherein an output shaft of the stirrer is connected to the stirring shaft. The above object is achieved by a garbage disposer characterized by comprising:

According to the first aspect of the present invention, since the motor shaft of the motor is disposed perpendicular to the output shaft, a driving device that is generally elongated in the axial direction of the motor is arranged along the outer wall of the mating machine. And the overall shape of the apparatus, including the partner machine, can be reduced accordingly.

Further, according to this configuration, the protruding dimension of the driving device that protrudes from the mounting surface in a cantilever state can be shortened. Can be prevented.

A drive device in which the output shaft and the motor shaft are made orthogonal to each other for the purpose of reducing the size in the output shaft direction is considered to be conventionally known per se (described later).

However, the present invention does not merely make the output shaft and the motor shaft orthogonal. That is, the present inventor has learned through daily efforts that a drive for a rotary machine, which is widely used and is one of the standards, is of a large size in the direction of the output shaft. Manufacturers and assemblers who have to use the above-mentioned drive device in accordance with the standardization of the (there is no other option) have to adopt this drive device to make the whole rotary machine larger in size. I noticed that there is.

In consideration of these points, the present invention overcomes one of the problems caused by the standardization, and maintains the dimensions of the output shaft and the motor shaft while maintaining the fitting dimensions of the conventional drive device which is widely used widely. Are arranged to be orthogonal to each other.

As a result, the conventional parallel shaft driving device according to the present invention can be used as it is without any design change on the main body (partner machine) side and without any adapter. Can be replaced with Providing new drives while maintaining the mating dimensions, which is one of the de facto standards, is believed to provide significant economic benefits in many industrial fields.

The term "adapter" used herein means "new" when the positions of the mounting bolt holes and the output shaft on the mating machine side for mounting this type of drive do not match those on the drive. Separately prepared member ". In other words, for the members originally attached for the purpose of increasing the strength of the attachment surface on the mating machine side for manufacturing reasons, even if they are initially separate members as parts, the concept of `` adapter '' here is not Not included.

Further, if a part of the output shaft gear that rotates integrally with the output shaft is accommodated inside the projection provided on the gear box as in the second aspect of the present invention, the size is further increased. An output shaft gear having a pitch circle diameter can be adopted, and a large reduction ratio can be accommodated.

In the present invention, the mode of deceleration of the transmission (one-step deceleration, two-step deceleration, etc.) is not particularly limited. This may be appropriately selected according to the request for the reduction ratio of the partner machine.

However, it is not always easy to realize, for example, a two-step deceleration mode or more while maintaining "attachment compatibility" with a conventionally used driving device. In this regard, the present inventors use an intermediate shaft parallel to the output shaft in the case of the two-stage deceleration mode or more, and a plane including the motor shaft and parallel to the output shaft is located between the output shaft and the intermediate shaft. By arranging the motor shaft as described above, the internal space of the gear box can be effectively utilized, and the above-described mounting compatibility can be maintained, and it is possible to flexibly cope with a demand for a higher reduction ratio. I have confirmed that.

The reason why the intermediate shaft is preferably positioned in parallel with the output shaft is that the conventional components can be diverted to this portion as it is, thereby suppressing an increase in the manufacturing cost of the drive device.

The use of the driving device according to the present invention is not limited to the use of the garbage disposal.

FIG. 16 proposes a drive device in which the motor shaft and the output shaft are made orthogonal to each other only for the purpose of shortening the dimension in the output shaft direction.
The driving device 36 transmits the rotation of the motor shaft 10A of the motor 10 to the output shaft 16 via the first and second intermediate shafts 18 and 20, and has a basic deceleration structure according to the present invention. Similar to the device. However, since it was developed in a different dimension from the subject of the present invention, the bolt holes 3 for attaching the drive device 36 to the mating machine are not provided.
4, the output shaft 16 is structurally arranged at a special position, so that the object of the present invention of maintaining compatibility cannot be achieved as it is.

[0047]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIGS. 1, 2 and 3 show a driving device 40 for a rotary machine according to a first embodiment of the present invention.

The drive unit 40 includes a motor 42 and a transmission 44 for transmitting the rotation of a motor shaft 42A of the motor 42 to an output shaft 52 via first and second intermediate shafts 48 and 50 (FIG. 1). Are not shown in the figure).

As shown in FIGS. 2 and 3, the transmission 44 has the first intermediate shaft 48, the second intermediate shaft 50, and the output shaft 52 rotatably supported and housed inside a gear box 46. ing.

The motor shaft 42A of the motor 42 is arranged so as to be perpendicular to the output shaft 52.
The intermediate shaft 48 and the second intermediate shaft 50 are arranged so as to be parallel to the output shaft 52.

The gear box 46 is mounted on a mating machine (not shown; for example, a garbage disposal machine 80 described later).
The gear box 46 is positioned so that the four bolt holes 54 in the same direction as the output shaft 52 are located at the four vertices of a virtual square 56 on a plane (mounting surface) 46B perpendicular to the output shaft 52.
Are formed near the outer periphery of the gear box 46.
Further, the axis of the output shaft 52 is located at a position shifted from the center of the virtual square 56 and at the same distance L1 from a pair of adjacent vertices.
It is located at the position.

This virtual square 56 is a conventional virtual square 1
4B is the same size as the virtual square 5 of the output shaft 52.
The deviation from the center of 6 is also the same as that of the prior art. Further, the diameter of the bolt hole 54 and the diameter of the output shaft 52 are the same as those of the conventional one, and complete compatibility is maintained with respect to the fitting dimension with the counterpart machine.

In order to realize this structure, in this embodiment, one side (in the illustrated example, a horizontal plane including the axial direction L of the motor shaft 42A) includes the motor shaft 42A. In the figure, the output shaft 52 is arranged on the upper side, and both the first intermediate shaft 48 and the second intermediate shaft 50 are arranged on the opposite side (the lower side).

The axis of the first intermediate shaft and the axis of the second intermediate shaft are set at positions equidistant from the output shaft 52. Further, the first intermediate shaft 48 and the second intermediate shaft 50 A straight line connecting the respective axes is parallel to the axial direction L of the motor shaft 42A.

The deceleration structure of the transmission 44 will be specifically described. The transmission 44 includes a hypoid pinion 60 formed integrally with the motor shaft 42A, and a first intermediate shaft 48.
A hypoid gear 62 fixed to the second intermediate shaft 50 and capable of meshing with the hypoid pinion 60, a first pinion 64 fixed to the first intermediate shaft 50, and a first pinion 6 fixed to the second intermediate shaft 50.
A second pinion 68 fixed to the second intermediate shaft 50; and an output shaft gear 70 fixed to the output shaft 52 and meshable with the second pinion 68. The hypoid gear 62 and the second gear 66
Preferably have substantially the same outer diameter.

The gear box 46 accommodates the transmission 44 therein, and has an opening 46A on the shaft end side of the output shaft 52, and the output shaft 52 can protrude outward through the opening 46A. It has been. When the output shaft 52 is a hollow shaft type (described later), the concave portion 46D of the gear box 46 in which the opening 46A is formed is engaged with a convex portion of a mating machine or a cover is attached. Used when The plane of the gear box 46, which is parallel to the bottom surface of the recess 46D, provides a mounting surface 46B for fixing the driving device 40 to a mating machine (driven device).

The output shaft 52 has a keyway 5 in the axial direction.
2A is formed so that a parallel key or the like can be inserted.

The driving device 40 is directly fixed to the driven device (the other machine) by the mounting surface 46B. Therefore,
By utilizing the reaction torque generated on the mounting surface 46B, the power of the motor 42 is transmitted through the respective gears in the order of the first intermediate shaft 48, the second intermediate shaft 50, and the output shaft 52. A rotating body (for example, a stirring shaft 84 described later) connected to the shaft 52 can be rotated.

According to the driving device 40, the motor 42
Are arranged such that the motor shaft 42A and the output shaft 52 are orthogonal to each other, so that the dimension of the entire driving device 40 in the direction of the output shaft 52 can be reduced.

Further, the first intermediate shaft 48 and the second intermediate shaft 50 are arranged to be shifted to the same side with respect to a plane including the axial direction L of the motor shaft 42A and parallel to the output shaft and the intermediate shaft. In addition, since the output shaft 52 is displaced to the opposite side, the space for installing the output shaft 52 inside the gear box 44 can be widened. That is, in determining the installation position of the output shaft 52, the first intermediate shaft 48
Also, the second intermediate shaft 50 does not interfere.

This results in the compactness of the gear box 44, and maintains the same bolt hole position as in the past while being an orthogonal transmission, thereby achieving complete compatibility with the conventional drive. It is possible. As a result of achieving this complete compatibility, in many industrial fields using a conventional drive device, the drive device 40 can be used without any design change on the driven device side (the partner machine side). As a result, the size of the entire rotary machine including the drive device 40 can be reduced, and economical advantages in all aspects (manufacturing costs, merchantability, transportation costs, etc.) can be obtained.

Also, as in the first embodiment, the intermediate shaft is
In the case of the three-stage reduction mode in which the transmission is fully disposed, the output shaft 52 can be disposed just halfway between the first intermediate shaft 48 and the second intermediate shaft 50, and the transmission is effectively utilized by using a small space. 44 are configured. In particular, the hypoid gear 62 and the second
By arranging the output shaft 52 in a concave space 72 formed by overlapping these gears when the gear 66 is viewed from the output shaft direction, the size in the orthogonal direction of the motor shaft 42A of the gear box 46 (up and down in FIG. Direction size) can be greatly reduced. As a result, like the gear box 14 in the driving device 8 in which the conventional output shaft 16 and the motor shaft 10A are arranged in parallel, the driving device 40 also
The output shaft 52 can be arranged at a position equidistant from the pair of bolt holes 54 adjacent in the 2A direction.

In a two-stage deceleration mode in which one intermediate shaft is arranged, the output shaft is arranged on one side with respect to a plane including the motor shaft and parallel to the output shaft and the intermediate shaft. By arranging the intermediate shaft on the (opposite side), the internal space of the gear box is effectively used, and it is possible to achieve complete mounting compatibility with a conventional drive device while maintaining a desired reduction ratio.

The driving device 40 according to the first embodiment
, The first intermediate shaft 48 (the second intermediate shaft 50
Alternatively, the rotation of the motor shaft 42 </ b> A may be directly transmitted to the output shaft 52. Further, the motor shaft 42A
However, the output shaft may be directly driven without passing through the intermediate shaft.

A plane parallel to the horizontal plane including the motor shaft 42A of the gear box 46 (the upper side in FIG. 2)
An arc-shaped projection 46 based on the axis of the output shaft 52
C is provided. The projecting portion 46C is for expanding the accommodation space of the output shaft gear 70 so that the pitch circle diameter of the output shaft gear 70 can be made as large as possible. That is, the use of the "arc-shaped" projection means that the internal space of the gear box 46 is expanded in an arc shape, and the actual external shape does not matter.

As a result, the output shaft gear 70 can have a large pitch circle diameter up to the limit of the range that does not interfere with the bolt hole 54. Therefore, even when a large reduction ratio is required, the intermediate shaft can be used. It is possible to cope without increasing the number of rotations, and it is possible to achieve a high reduction ratio even in a single-stage reduction mode without using the intermediate shaft.

This driving device 40 is particularly advantageous when it is mounted on a driven device (a mating machine: for example, a fermenter of a refuse treatment machine) such that the output shaft 52 is substantially horizontal.

The reason is that the driving device 40
Since the dimension in the direction of the output shaft 52 is reduced, the motor 42 having a particularly large weight is installed on the driven device in a state in which the motor 42 is in close contact with the mating machine. Therefore, as compared with a conventional driving device in which a motor protrudes largely outward with respect to a partner machine as in the related art,
This is because the load due to the mounting portion of the mating machine, that is, the load due to the moment action caused by the own weight of the driving device 40 is greatly reduced.

Accordingly, it is not necessary to increase the strength of the mounting portion of the mating machine as in the related art, and the cost can be reduced as a whole including the mating machine.

Next, a driving device 74 for a rotary machine according to a second embodiment of the present invention will be described with reference to FIGS.

In this driving device 74, a hollow hollow shaft type shaft member is used as the output shaft 76 instead of the solid output shaft 52 shown in the driving device 40 according to the second embodiment. Further, openings 78A through which both ends of the output shaft 76 can pass are formed on both side walls of the gear box 78 facing the output shaft 76, respectively.

The remaining structure and operation of the driving device 74 are substantially the same as those of the driving device 40 described above. Therefore, the same portions are denoted by the same reference numerals as those of the driving device 40, and will be described in detail. Is omitted.

According to the driving device 74, in addition to the effects of the driving device 40 shown in the first embodiment, two rotating bodies (for example, stirring shafts) of driven devices are connected to both ends of the output shaft 76. Also, it is possible to rotatably support the middle of a shaft-type rotating body (for example, one having wheels at both ends) that performs some kind of rotating work at both ends, so that the rotational power of the motor 42 is effectively used. Will be used.

The output shaft 76 penetrating both side surfaces of the gear box 44 is not limited to the hollow shaft type, and both ends of the solid type output shaft may project from the gear box 44. .

Next, a driving device 79 for a rotary machine according to a third embodiment of the present invention shown in FIGS. 7 and 8 will be described.

This drive device 79 is a two-stage reduction mode using only the first intermediate shaft 48 without using the second intermediate shaft. The output shaft gear 70 meshes with the first pinion 64 to output the output shaft. 77 is directly driven.

More specifically, the motor shaft 42A is disposed so as to be perpendicular to the output shaft 77, and a plane including the motor shaft 42A and parallel to the output shaft 77 is
Motor shaft 4 so as to be located between
2A is arranged.

It is to be noted that the driving device 40 is almost the same as the driving device 40 shown in the first embodiment except that the second intermediate shaft is not used. A detailed description is omitted by attaching reference numerals.

In the driving device 79, the bolt hole 54 for attaching to the counterpart machine has the output shaft 77 at the vertex position of the virtual square 56 on a plane perpendicular to the output shaft 77.
Are formed in parallel with the gear box 46, and furthermore, at a position where the axis of the output shaft 77 is shifted from the center 56A of the virtual square 56 and at a position equidistant L1 from a pair of adjacent vertices (a pair of bolt holes 54). Thus, the output shaft 77 is provided.

As described above, the output shaft 77 is arranged on one side and the first intermediate shaft 48 is arranged on the other side with respect to the plane including the motor shaft 42A, so that the internal space of the gear box 46 is most efficiently used. It was achieved through good use.

Accordingly, also in this driving device 78, it is possible to achieve the mounting compatibility with the conventional driving device, which has become a practical standard, and to reduce the size in the output shaft direction.

It is preferable that the motor shaft 42A directly drives the output shaft gear 70 without using the first intermediate shaft 48 from the viewpoint of the compatibility and the reduction of the dimension in the output shaft direction. That is, the output shaft gear 70 is a hypoid gear, and this hypoid gear meshes with the hypoid pinion 60 formed integrally with the motor shaft 42A,
The rotation of the motor shaft 42A may be directly transmitted to the output shaft 77. This makes it possible to provide the most compact drive device in that the gear box 46 can be made smaller by the amount that the intermediate shaft is not disposed.

The driving device 79 shown in FIGS.
As shown in A, it is preferable that the output shaft 77 is a hollow shaft type, and the driven shaft of the mating machine is penetrated through the output shaft 77 to support and rotate the driven shaft near the center of the driven shaft. Becomes possible. The other configuration of the driving device 79A is substantially the same as that of the above-described driving device 79, and therefore, the same or similar parts are denoted by the same reference numerals and detailed description thereof will be omitted.

Next, a garbage disposer 80 according to a fourth embodiment of the present invention shown in FIG. 11 will be described.

The garbage disposer 80 comprises a fermentation tank 82 capable of receiving garbage and a fermentation accelerator, and a rotatable shaft member disposed inside the fermentation tank 82.
4, a stirring shaft 84 having substantially radial stirring blades 86 and capable of stirring garbage and the like, and a driving device 40 shown in the first embodiment connected coaxially to the stirring shaft 84.
And.

The driving device 40 is mounted on the mounting surface 46 of the gear box 46.
In B, it is directly fixed to the thick part 88 provided integrally with the outer peripheral wall of the fermentation tank 82. Although not specifically shown, the output shaft 52 is coaxially housed inside the stirring shaft 84 and is mutually engaged in a rotational direction via a parallel key, so that the output shaft 52 and the stirring shaft 84 are integrated. Rotate. The thick portion 88 may be formed integrally with the fermentation tank 82, or may be fixed to a plate-like member by bolts. The thick portion 88 does not constitute an “adapter” for matching the fitting dimensions.

Since the garbage disposer 80 is provided with the drive unit 40 already described in detail in the first embodiment, the stirring shaft 84 including the drive unit 40 is maintained while maintaining the same rotational power as the conventional one. Can be kept small, and the size of the garbage disposer 80 can be reduced.

Further, since the driving device 40 is completely compatible with a driving device which is now widely used and has become one of the de facto standards, even when the driving device 40 is newly adopted, It is not necessary to change the design of the thick portion 88 and the stirring shaft 84, and the stirring portion 84 can be used as it is, so that a new increase in cost does not occur.

Next, a garbage disposer 90 according to a fifth embodiment shown in FIG. 12 will be described.

The garbage disposal machine 90 is provided with the fermenter tank 82.
Is a large-capacity garbage disposal machine equipped with two garbage disposals.

The one stirring shaft 84 capable of stirring the two fermentation tanks 82 at the same time is disposed so as to bridge between the two fermentation tanks 82 and the center thereof (between the two fermentation tanks 82). ), Is rotatably supported by a driving device 74 for a rotary machine according to the second embodiment.
That is, the driving device 74 is disposed such that the stirring shaft 84 passes through the inside of the hollow shaft type output shaft 76.

Therefore, it is possible to simultaneously agitate the garbage and the like stored in the two fermentation tanks 82 by the rotational power of one driving device 74, and the rotational power of the motor 42 is effectively utilized.

Further, since the stirring shaft 84 which is long in the axial direction is rotatably supported by the driving device 74 at the intermediate portion thereof, it acts on the stirring shaft 84 as compared with the case where the shaft end is supported. Twisting can be suppressed.

[0095]

According to the present invention, in a conventional general-purpose drive device, while maintaining performance including compatibility, a drive device for a rotary machine having a reduced output shaft direction dimension, and The use of the driving device makes it possible to provide a miniaturized garbage disposer.

[Brief description of the drawings]

FIG. 1 is a front view showing a driving device for a rotary machine according to a first embodiment of the present invention.

FIG. 2 is a sectional view perpendicular to an output shaft of the driving device.

FIG. 3 is a developed sectional view taken along the line III-III in FIG. 2;

FIG. 4 is a front view showing a driving device for a rotary machine according to a second embodiment of the present invention.

FIG. 5 is a sectional view perpendicular to an output shaft of the driving device.

6 is a developed sectional view taken along line VI-VI in FIG. 4;

FIG. 7 is a sectional view showing a driving device for a rotary machine according to a third embodiment of the present invention.

8 is a developed cross-sectional view taken along line VIII-VIII in FIG.

FIG. 9 is a cross-sectional view showing the same driving device having a hollow shaft type output shaft.

10 is a developed sectional view taken along line XX in FIG. 9;

FIG. 11 is a sectional view schematically showing a garbage processing machine according to a fourth embodiment of the present invention.

FIG. 12 is a sectional view schematically showing a garbage processing machine according to a fifth embodiment of the present invention.

FIG. 13 is a sectional view schematically showing a conventional garbage processing machine.

FIG. 14 is a perspective view showing a conventional driving device used in a cohabitation refuse treatment machine.

FIG. 15 is a sectional view showing a transmission and a gear box of the drive device.

FIG. 16 is a cross-sectional view showing a driving device for a conventional rotary machine.

[Explanation of symbols]

 40, 74, 79, 79A drive device 42 motor 42A motor shaft 44 transmission 46, 78 gear box 46A, 78A opening 46B mounting surface 48 first intermediate shaft 50 second intermediate shaft 52 76, 77 ... output shaft 54 ... bolt hole 56 ... virtual square 56A ... center 58 ... virtual triangular shape 60 ... hypoid pinion 62 ... hypoid gear 64 ... first pinion 66 ... second gear 68 ... second pinion 70 ... output shaft gear 72 ... concave space 80, 90 ... garbage disposal machine 84 ... stirring shaft 86 ... stirring blade 88 ... thick part

Continued on front page F term (reference) 3J009 DA17 EA04 EA05 EA06 EA11 EA18 EA25 EA32 EB24 FA14 FA30 3J063 AA31 AB02 AB04 AC01 BA03 BB41 CA01 CB57 CD41 4D004 AA03 CA15 CA19 CB26 CC03 CC08 4G078 AA15 AB20

Claims (3)

[Claims] 1. A driving device for a rotary machine, comprising a motor, a transmission for transmitting rotation of a motor shaft of the motor to an output shaft, and a gear box capable of housing the transmission. A shaft is disposed perpendicular to the output shaft, and a bolt hole for attaching the driving device to a mating machine is provided at a vertex position of a virtual square on a plane perpendicular to the output shaft, in parallel with the output shaft. The output shaft is formed in a gear box, and the output shaft is disposed so that the axis of the output shaft is shifted from the center of the virtual square and is equidistant from a pair of adjacent vertices. A drive device for a rotary machine, characterized by the above. 2. The gear box according to claim 1, further comprising: a projection parallel to the output shaft and closest to the output shaft in the gear box, the projection being configured to expand an internal space of the gear box. A drive device for a rotary machine, wherein a part of an output shaft gear that rotates integrally with the output shaft is accommodated therein. 3. A fermentation layer capable of receiving garbage and a fermentation promoter, and a rotatable shaft member disposed in the fermentation layer, the garbage and fermentation being provided with stirring blades on the outer peripheral surface. A stirring shaft capable of stirring the accelerator, and a drive device for the rotary machine according to any one of claims 1 and 2, wherein an output shaft of the stirring shaft is connected to the stirring shaft. Garbage processing machine.