JPH05153765A - Magnetic joint transfer apparatus and applied apparatus thereof - Google Patents

Abstract

PURPOSE:To simply form a low cost rotation transfer apparatus arranging unmatched axes for interlocking a plurality of rotating axes through the joints by introducing such a basic structure that Z-bearing rotating axis and 1-bearing rotating axis are coupled with a magnetized disk type joint and a 2-bearing rotating axis has a higher priority sequence. CONSTITUTION:In a rotation transfer apparatus 200, a first rotating axis 1 is held by providing bearings A at two positions, a second rotating axis 2 is held by providing a bearing B at one position, and a joint J is provided between the first rotating axis 1 and the second rotating axis 2 for the interlocking rotation. With such basic arrangement, a third rotating axis 3, a fourth rotating axis 4, a fifth rotating axis 5 and a sixth rotating axis 6 are also arranged for the interlocking rotation. Moreover, each rotating axis is controlled for movement in the axial direction with an axial direction fixing device K and a magnetized disk type indirect joint is used as the joint J. For the transfer of rotating axis, any one of the 2-bearing rotating axes is selected as the rotating axis having the higher rotating priority.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission device for transmitting axial rotation by a magnetic coupling in which magnetized disks are arranged to face each other, and a device for utilizing the same.

[0002]

2. Description of the Related Art As an apparatus of this type, in the case of a frozen dessert manufacturing apparatus, an impeller in a mix tank for mixing ingredients for a frozen dessert is used as a magnetized disk-shaped drive wheel, that is, a drive with a magnet. A configuration in which a vehicle indirectly rotates from outside the tank (hereinafter referred to as "first conventional technology") is disclosed in JP-A-2-10424.
5, etc.

In a device that transmits shaft rotation by interlocking a plurality of rotary shafts, that is, in a rotation transmission device, the axes of the shafts do not line up in a straight line and there is a possibility that they do not line up in a straight line. With respect to the shaft arrangement in the case of a certain arrangement (which is referred to as a disagreement shaft center arrangement in the present invention), a structure in which a mechanical universal joint is provided between the shafts for transmission (hereinafter referred to as the second related art) Is a well-known technique.

[0004]

The above-mentioned mechanical universal joint can be used for transmission in a rotation transmission device having a disagreement axial center arrangement, but the mechanical structure of the joint is complicated and it takes a lot of time to adjust the attachment. If so, there is a problem that each part is severely worn and the service life is short.

Therefore, in such a rotation transmitting device having a disagreement shaft center arrangement, when it is desired to construct the device having a long service life and a simple structure, the magnetized disk-shaped body as in the above-mentioned first prior art is used. Although it may be possible to use an indirect joint for the configuration, there is a problem in what kind of configuration such a rotation transmission device can be provided in a simple and inexpensive manner.

[0006]

DISCLOSURE OF THE INVENTION The present invention relates to a rotary transmission device having a plurality of rotary shafts interlocked with each other via a joint and having a non-coincident shaft center arrangement, the rotary shaft being provided with bearings at two positions. That is, the two-bearing rotary shaft and the rotary shaft provided with a bearing at one location and held, that is, the one-bearing rotary shaft,
Rotating shaft arranging means for arranging each required number, shaft interlocking means for arranging the above-mentioned interlocking so that the above-mentioned two-bearing rotating shaft and one-bearing rotating shaft are interlocked, and the above-mentioned axial movement of each rotating shaft. An axial movement restraining means for restraining, and a centering bearing retaining means for retaining the bearing of the one-bearing rotary shaft as a centering type bearing,
A magnetic coupling means provided with the above-mentioned joint as an indirect type joint by a magnetized disk-shaped body, and a rotation transmission means for transmitting rotation with one of the above-mentioned two-bearing rotary shafts as the preceding rotary shaft are provided. The above-mentioned problems can be solved by the above.

[0007]

Since the magnetized disk-shaped bodies of the joints provided on the respective shafts attract each other in the direction in which the shaft centers are aligned by the magnetic force, the one-bearing rotating shaft rotates when stationary, using the centering type bearing as a fulcrum. Regardless of time, it is held stable while balancing in the axial direction.

[0008]

EXAMPLES Examples will be described below with reference to the drawings. [First Embodiment] First, a rotation transmission device will be described as a first embodiment. In the rotation transmission device 200 of FIG.
The first rotating shaft 1 is provided with bearings A provided at two required positions, and the second rotating shaft 2 is provided with bearings B provided at one required position, and the directions of the respective axial centers are deviated. Thus, the arrangement is not aligned on a straight line, that is, the disagreement axis arrangement.

The first rotating shaft 1 and the second rotating shaft 2
A joint J is provided between and to interlock with each other, and the third rotary shaft 3, the fourth rotary shaft 4, the fifth rotary shaft 5, the fifth rotary shaft 5, Since the rotary shafts 6 of 6 are also arranged to interlock with each other, the first
Seen from any of the rotating shafts 1 to 6 of the rotating shaft, the rotating shaft is arranged according to the above-described basic configuration. Further, each of the rotary shafts is configured to be restrained from moving in the axial direction by an axial fixture K.

In the present invention, a rotary shaft in which bearings are provided and held at two places like the first rotary shaft 1 is called a two-bearing rotary shaft, and a bearing is provided at one place like the second rotary shaft 2. The rotary shaft provided with and held is called a one-bearing rotary shaft.

The joint J is an indirect type joint made of a magnetized disc-shaped body, and concretely, for example, as shown in FIG.
Magnetize M to a disk-shaped ferrite along the circumference with a plurality of N
Magnetized disk-shaped body 10 with permanent magnets in which S poles are alternately arranged
0 or as shown in FIG. 2 (B), magnetized disk-shaped bodies 101 each having a structure in which a plurality of permanent magnet pieces 101B are arranged at intervals on a disk 101A made of a magnetic conductive material, for example, an iron material, are arranged to face each other. Structure, or FIG. 2 (A) or (B)
Of the magnetized disc-shaped bodies 100 and 101 and the permanent magnet piece 100B of FIG. 2 (B) are replaced by a magnetic conductive material, for example, a ferrous disc-shaped toothed disc. This is due to the configuration in which the body and the body are arranged so as to face each other.

1 bearing A bearing B for holding the rotating shaft is a centering type bearing, and concretely, for example, as shown in FIG. 3, a bearing such as a ball bearing X or an oilless bearing for the rotating shaft S is used. Sphere R outside 102A
This is due to the structure in which the holding frame body W held by the above is provided or the structure in which the outer ring or the inner ring of the ball bearing is provided with a spherical surface.

In such an alignment type bearing, a structure in which the spherical portion is tightened after the axes are aligned or a structure in which the spherical portion is pressed semi-fixed by an elastic body is called a semi-automatic alignment type bearing. The one that holds the spherical surface in a free state is called the self-aligning type.

When the deviation of the axis between the shafts is small and the inclination of the single bearing rotary shaft is small, an automatic centering type is used.
When the deviation is large and the inclination of the single bearing rotary shaft is large, it is desirable to use a semi-automatic centering type.

The axial fixing tool K is a holding tool for fixing each rotary shaft to the bearing A or the bearing B so as not to move in the axial direction. For example, as shown in FIG. 4A has a structure in which a set screw 103B is provided in a portion where the inner ring side 103A is extended in the axial direction and is fixed to the rotating shaft S, or, as shown in FIG.
For example, the collar 103C, that is, the structure in which the retaining ring is screwed is used.

Therefore, when the one-bearing rotary shaft, for example, the second rotary shaft 2 is positioned at a predetermined position during assembly, each one side J1 of each joint J provided on this rotary shaft and the rotary shaft that interlocks, That is, the other side J2 of each joint J provided at one end of the first rotary shaft 1 and the third rotary shaft 3 is attracted to each other in the direction in which the centers of the respective joints are aligned by the magnetized magnetic force. It will automatically be held at the position required for transmission of rotation of each rotary shaft.

Further, since each rotating shaft is restrained by the axial fixing member K so as not to move in the axial direction, the joint J
Since the gap G between the one side J1 and the other side J2 is maintained as a predetermined gap, the rotation can be smoothly transmitted between the rotary shafts.

For the transmission of such rotation, a two-bearing rotary shaft, that is, any one of the first rotary shaft 1, the third rotary shaft 3, and the fifth rotary shaft 5 is selected as a forward rotary shaft. The rotation shafts can be arranged by selecting an arbitrary number of two or more rotation shafts that interlock, for example, three rotation shafts, and the other end of the rotation shafts in the rear order. Can apply a load to work regardless of the order, and when the rotating shaft to be loaded is a two-bearing rotating shaft, a load can be applied to the middle of the shaft.

The position of the bearing B of the one bearing rotary shaft should be separated from the joint J whose axial center coincides with each other, and generally, a position separated from the preceding rotary shaft should be selected. It is desirable to place it near the top when it is vertical and in the center when it is horizontal.

[Second Embodiment] Next, as a second embodiment,
A frozen dessert manufacturing apparatus using the rotation transmission device 200 of the first embodiment will be described. In the frozen dessert manufacturing apparatus 300 of FIG. 5, the illustrated portion is an impeller in a mix tank of the frozen dessert manufacturing apparatus according to the first conventional art, that is,
It is a part corresponding to the part that drives the rotation for mixing the ingredients of the frozen dessert. The planted shaft 32 is fixed inside the mix tank 31, and the impeller 33 is fitted in a rotatable state. The mounting and driving vehicle 34 is arranged outside the bottom of the bottom of the mix tank 31.

On the lower surface side of the impeller 33, a portion corresponding to one joint of the magnetized disc-shaped body, that is, FIG.
The same thing as one side of the joint J in this embodiment is embedded, and the drive wheel 34 is the same as the one side of the joint J made of a magnetized disc.

As described above, the structure of this portion is a well-known technique according to the first conventional technique, and the shaft 32 of the impeller 33 is fixed at the interlocking portion of the impeller 33 and the drive wheel 33. Since it is not a rotary shaft, the basic form of the interlocking arrangement of rotary shafts described in the first embodiment of FIG. 1 is not configured.

The extension shaft 35 is an extension shaft for rotating the drive wheel 34 by the rotary shaft 36A of the electric motor 36 arranged at the lowermost part, and the upper end side is passed through the bearing 35A, and further the mounting plate 3 is attached.
The drive wheel 34 is mounted and fixed through 5B.

The extension shaft 35 forms a one-bearing rotary shaft similar to the second rotary shaft 2 in the first embodiment of FIG. 1, and since the bearing 35A corresponds to the bearing B, it is of the centering type. As shown in FIG. 1, the set screw 35C provided on the bearing 35A is a bearing.
4A corresponds to the axial fixture K in the embodiment of FIG.
Similarly to the push screw 103B, the extension shaft 35 is tightened to suppress axial movement. That is, extension shaft 3
5 is not moved up and down.

The bearing 35A is fixed to the mounting plate 3 with a fixture 35A1.
5B, and the mounting plate 35B is fixed to the outside of the bottom surface of the mix tank 31 to be fixedly held in the apparatus.
The outer surface of the bearing 35 is spherical, and the bag-shaped fixture 35
When it is fixed to the mounting plate 35B at A1, it functions as a semi-automatic centering type bearing.

The partition plate 50 is fixed to the middle to the lower part of the frame of the apparatus, and the electric motor 36 passes the rotary shaft 36A through the through hole 36B1 of the mounting seat 36B and fixes it to the mounting seat 36B, and then the rotary shaft 36A. 36A is passed through the through hole 50A, and the mounting seat 36B is fixed to the partition plate 50 so as to be fixedly held in the apparatus.

Joints 361A and 361B are attached to and interlock with the lower end of the extension shaft 35 and the upper end of the rotary shaft 36A of the electric motor 36, respectively. The joints 361A and 361B are joints formed by magnetized discs and correspond to the one side J1 and the other side J2 of the joint J in the embodiment of FIG.

The rotary shaft 36A of the electric motor 36 is held by two bearings provided in the upper and lower parts and is restrained from moving in the axial direction. Therefore, similar to the first rotary shaft 1 in the embodiment of FIG. Since the two-bearing rotary shaft is formed, the structure of the rotation transmission device from the rotation shaft 36A to the tip of the extension shaft 35 forms the rotation transmission device of the portion corresponding to the basic structure in the first embodiment of FIG. It will be.

In the case of this embodiment, it is possible to eliminate the difficulty of adjusting the respective axis centers in a narrow device, and it is necessary to provide a space for mounting a bearing for supporting the lower end side of the extension shaft 35 and a fixture. It has the advantage of disappearing.

[Modified Implementation] The present invention can be modified and implemented as follows. (1) The disposition of the shaft centers is not limited to the disagreement disposition of the shaft centers from the beginning, but in the assembly process, or
Applies to components that may result in inconsistent axial centering due to aging.

(2) A two-bearing rotary shaft arranged at the end of interlocking movement, for example, a bearing for holding the bearing provided at the terminal end of the two shaft bearings of the rotary shaft 36A of the electric motor 36 of the second embodiment at the axial center. , A pivot bearing, for example. (3) Two bearings The bearing B that holds the rotating shaft is a centering type bearing.

[0032]

As described above, according to the present invention, since the specific rotary shaft can be configured as a single-bearing rotary shaft, the number of constituent elements is reduced and the adjustment operation at the time of assembly can be omitted.
In addition to reducing manufacturing costs, it can also be applied to places where adjustment operations cannot be performed.Therefore, if the device uses a rotation transmission device and you want to make it as compact as possible, especially if you are using a frozen dessert manufacturing device. In the case of a device in which it is desired to increase the manufacturing capacity and downsize the other components, there is a feature that such a space can be eliminated and the device can be provided easily and inexpensively.

[Brief description of drawings]

 The drawings show examples, and the contents of each drawing are as follows.

FIG. 1 is a schematic diagram of the basic configuration of a first embodiment of the present invention.

FIG. 2 is a perspective view of the main configuration of the first embodiment.

FIG. 3 is a cross-sectional view of the main configuration of the first embodiment.

FIG. 4 is a cross-sectional view of the essential parts of the first embodiment.

FIG. 5 is a perspective view of a main configuration of a second embodiment.

[Explanation of symbols]

 200 Rotation transmission device 1 Rotation shaft 2 Rotation shaft 3 Rotation shaft 4 Rotation shaft 5 Rotation shaft 6 Rotation shaft A Bearing B Bearing G G Gap J Joint J1 Joint one side J2 Joint other side K Axial fixing tool M Magnetized R Spherical S rotating shaft W holding frame 100 magnetized disc-shaped body 100A permanent magnet piece 101 magnetized disc-shaped body 102A bearing 103 bearing 103A inner ring side 103B set screw 103C color 300 frozen dessert manufacturing device 31 mix tank 32 shaft 33 impeller 34 Drive vehicle 35 Extension shaft 35A Bearing 35A1 Fixture 35B Mounting plate 35C Set screw 36 Electric motor 36A Rotating shaft 36B Mounting seat 36B1 Through hole 361A Joint 361B Joint 50 Partition plate 50A Through hole

Claims (2)

[Claims] 1. A rotation transmission device having a non-coincident shaft center arrangement in which a plurality of rotation shafts are interlocked via a joint, wherein the rotation shafts (hereinafter, referred to as 2
(A bearing rotating shaft) and a rotating shaft arranging means for arranging a required number of rotating shafts (hereinafter, referred to as 1 bearing rotating shafts) provided with bearings at one place, the two bearing rotating shafts, and A shaft interlocking device for arranging the interlocking motion so as to interlock with the one-bearing rotary shaft, an axial movement restraining device for restraining axial movement of each of the rotary shafts, and a bearing of the one-bearing rotary shaft is aligned. Aligning bearing holding means for holding as a bearing, magnetic coupling means for providing the joint as an indirect joint by a magnetized disc, and one of the two bearing rotating shafts as a forward rotating shaft. A rotation transmission device, comprising: a rotation transmission means for transmitting rotation. 2. An impeller in a mix tank for mixing frozen dessert ingredients is rotated by a drive wheel magnetized from the bottom outer side of the bottom of the mix tank, and an extension shaft provided under the drive wheel is used. A frozen dessert manufacturing apparatus using a rotation transmission device according to claim 1 in a component driven by an electric motor, wherein the extension shaft is the one-bearing rotation shaft according to claim 1, and the rotation shaft of the motor is the two-bearing bearing according to claim 1. A frozen dessert manufacturing apparatus comprising, as a rotating shaft, an extension shaft / motor shaft connecting unit that constitutes the shaft interlocking unit of claim 1.