JP2017187159A - Shaft coupling assembly, method for connecting two shafts by shaft coupling assembly, and maintenance method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compact shaft coupling assembly having high torque and capable of being assembled/disassembled, which can absorb three factors of eccentricity deflection and end play, which causes misalignment.SOLUTION: Provided is a shaft coupling assembly including: a first hub capable of fitting a first shaft 1010 having a screw fastening hole 1116 of an opposite slider holder 1062; a second hub 1021 capable of a fitting second shaft 1020 having a holder screw fastening hole of a slider opposite to the first hub; a cross-shaped coupling disk 1050 having a slider part; and four sets of holder members, where one set comprises paired holder members. Also, provided are a method for connecting two shafts by the assembly, and a maintenance method capable of replacing a cross-shaped coupling disk between both hubs, without substantially disassembling the shaft coupling assembly. In a case of a structure having an insulation member, electric insulation may occur between the shafts.SELECTED DRAWING: Figure 1

Description

Related applications

  This patent application is an international patent application filed on May 4, 2016 with the Japan Patent Office as the receiving office, application number PCT / JP2016 / 061075 “Shaft coupling assembly and two shafts by means of a shaft coupling assembly. Insist on the priority and the benefits of “methods of consolidation and maintenance”. The contents of which are hereby incorporated by reference in their entirety.

  The present invention relates to a shaft coupling assembly that can cope with misalignment, a method of connecting two shafts by the shaft coupling assembly, and a maintenance method.

When power is simply transmitted using a power transmission mechanism, for example, in the case of an output rotary shaft of a power source of an engine or a motor and an input rotary shaft of a pump, both rotary shafts are spaced apart and connected by a coupling. In this case, misalignment usually classified into eccentricity, declination, and end play occurs between two shafts of the output rotation shaft of the engine or motor and the input rotation shaft of the pump. Even if this misalignment is arranged and fixed to a rigid structural device / structure and the connection between the rotating shafts of the device can be precisely adjusted, due to aged deformation of the support structure, wear of component devices and wear of members, Or, when the rotating machine is arranged and fixed on a shell structure such as a ship that has to be a flexible structure, it can be generated dynamically by mechanical action from the surroundings after installation.

  As a result, even if a rigid structure is adopted in the torque transmission part in order to provide a normal and high torque transmission capability, a part of the structure includes a flexible structure that can absorb misalignment.

  Patent Document 1 discloses a rigid coupling device, but includes a flexible structure in which a slit perpendicular to the axis is inserted (Patent Document 1, Claims and FIG. 1).

  Patent Document 2 discloses a shaft coupling that has torsional rigidity and allows misalignment, but includes a flexible structure called a torsion spring mechanism in part. The torsion spring mechanism can “pivot and move in the axial direction to absorb slight misalignment” (paragraph 0048, first line to fourth line of Patent Document 2), “preload is applied” (Paragraph 0050, third line of Patent Document 2).

  U.S. Pat. No. 6,057,089 provides a method of connecting two shafts by a shaft coupling assembly comprising a rigid member including a sleeve (FIG. 1 of U.S. Pat. It does not provide a way to connect the two shafts.

  Thus, in view of absorbing misalignment, it is understood that it is currently difficult to realize a coupling configuration that is entirely composed of only a rigid structure and that is easy to install and maintain an assembly and rotating machine. An invention of a coupling that is composed only of a rigid structure and does not include a flexible structure is disclosed in, for example, Patent Document 4 (Japanese Patent Publication No. 2006-3777918). This invention is an invention composed only of a rigid structure and does not include a flexible structure, but even if misalignment adjustment can be adjusted at the initial stage of installation, in particular, misalignment due to aging or wear of the support structure, or comparison It is difficult to absorb the misalignment caused by the dynamic deformation of the support structure in the case of mounting on a ship placed under a flexible structure. For this reason, Patent Document 4 seems to be provided with a separate wear detection means so that secular change can be observed (Claim 1 of Patent Document 4). This makes it possible to indirectly understand that it is difficult to assemble a coupling that is composed only of a rigid structure and does not include a flexible structure, and to realize the installation and easy maintenance of a rotating machine. The inventor of the present application has tackled this problem from the front in order to achieve both a coupling configuration consisting entirely of a rigid structure and misalignment absorption.

  For assembly, installation, and maintenance of couplings that consist only of a rigid structure and do not include a flexible structure, the misalignment of the rotating machine shaft to be coupled is precisely measured on-site to determine the eccentricity, declination, and end. It is necessary to solve the alignment adjustments such as play by devising the installation. For precision measurement of shaft misalignment, for example, a laser measuring instrument can be used for non-contact measurement. Further, Non-Patent Document 1 uses a laser measuring instrument and computer-aided software in cooperation to determine the amount of misalignment. Disclose technology for precise digital measurement. However, as illustrated in Non-Patent Document 1, even if misalignment is measured by modernization techniques, correction of this misalignment can be done by adjusting the position and inclination of the mounting pedestal and inserting spacers into the pedestal. Usually, there is no choice but to do physical and mechanical care such as adjusting the thickness. Surprisingly, in many cases, alignment adjustment methods must rely on primitive human machine work such as adjusting the position of the mounting pedestal, inserting spacers into the pedestal, experience and manual intuition. It is.

  Thus, an easy method and an easy maintenance method for connecting two shafts by a coupling and a shaft coupling assembly which are composed only of a rigid structure and do not include a flexible structure are not disclosed.

  As described above, in the conventional example, even if an approach having a rigid structure is adopted, one of the members has to be a flexible structure. One approach of flexible structure is to have a thin structure part in part like a slit and include a soft structure, partly a spring structure part to include a soft structure, or like a flexible coupling, In general, a bellows-like shape is included, or a flexible material such as an elastic material or rubber is used as a material for the connection portion to include a flexible structure.

  However, flexible members generally suffer from fatigue problems with thin elastic materials and have low durability. Coupling members made of a flexible material such as rubber are vulnerable to high temperatures / oil, and need to be replaced and maintained in a predetermined cycle. In the first place, it is not suitable for transmission of high torque.

  And if it is to be maintained, it is preferable that the coupling is substantially removable, so that the configuration becomes more complicated. In this respect, Patent Document 5 is a detachable coupling, and “the present invention can shorten the axial length as much as possible, and can be used for a joint of eccentricity, declination, and end play. "Providing a propeller shaft structure that can absorb all of the three disadvantageous misalignment elements and that is easy to attach and detach to and from the input / output shaft, and that is easy to assemble and maintain" (paragraph 0004 of Patent Document 5). However, as in the so-called universal joint configuration, a pocket hole is provided in the yoke orthogonal to the X and Y axes (claim 1 of patent document 5) to absorb eccentricity and declination, and spline fitting (patent According to claim 5 of Document 5, the end play that is axially displaced is absorbed, and the configuration is complicated. After all, splines are arranged in tandem in the universal joint. Equal to that, the a certain degree obliged arrangement distance of the two axes of the connected device is considered not preferred as the present inventors.

  Furthermore, an Oldham joint is known as a joint that absorbs the deviation of the opposing shaft cores. Oldham's joint is a joint in which a floating cam that can be displaced freely during rotation is inserted as an intermediate plate as a shaft joint used when the driving shaft and driven shaft are parallel and the center line is different. is there. (Paragraph 0003 of Patent Document 6) As shown in FIG. 10 of Patent Document 6, “the protrusions provided on the cam 3 in the grooves (or protrusions) provided on the joint bodies 10 and 20 of the driving shaft 1 and the driven shaft 2”. It has a structure in which a shape (or groove) is slidably fitted ”(paragraph 0003 of Patent Document 6), and is an effective mechanism for absorbing eccentricity and end play. However, the sliding member generally suffers from wear and surface fatigue problems and has poor durability. If a non-metallic coupling member is used, it is weak in resistance to frictional heat / lubricating oil, and at least the intermediate plate should be mounted in a predetermined cycle. The necessity of replacement maintenance is unavoidable, but as shown in FIG. 10, in the structure in which the protrusion provided on the intermediate plate is slidably fitted in the groove provided in the opposite hub, the driving shaft and the driven shaft The hub fitted to the shaft had to be removed, and there was a problem that a full-scale maintenance inspection procedure and time were required.

Published Utility Model Gazette Hei 4-34515 Special table 2011-523992 JP2015-36586 Japanese Patent Publication No. 2006-3777918 JP 2003-56591 A JP-A-6-74241

http://www.pruftechnik.com/solutions/applications/shaft-alignment.html, Home> Solutions> Applications> Shaft alignment, Prooftechnique website, February 27, 2016

Therefore, a main problem of the present invention is a shaft coupling assembly having a new structure that enables transmission of high torque, is easy to assemble and disassemble in a compact space, and does not require labor and time for maintenance inspection. It is to provide a shaft coupling assembly that is capable of absorbing all three misalignment elements that are unavoidable for declination and end play coupling. That is,
(1) It is inconvenient for coupling of eccentricity, declination, and end play, and can absorb all three misalignment elements that are generally unavoidable. (2) Even when the shafts on both sides are installed and fixed, the coupling can be attached and detached. It is easy (3) It is possible to provide a coupling with a large common torque
It is an object of the present invention to provide a shaft coupling assembly and a method for connecting two shafts by the shaft coupling assembly and a maintenance method.

The present invention that has solved the above problems is as follows.
<Invention of Claim 1>
The following parts connecting the two torque transmission shafts:
A first hub that is matable with the first shaft;
A second hub that is matable with the second shaft;
With a coupling disc;
Two sets of slider parts, one set of which can be engaged or connected to the hub and the coupling disk; and one of the two members of the hub or the coupling disk, A shaft coupling assembly in which two pairs of notch portions are provided with a pair of notches facing each other at 180 ° across the shaft core,
The remaining one kind of member not having the notch is a method of connecting the two shafts by the shaft coupling assembly with the slider part engaged with the notch.
A shaft alignment step of previously aligning the approximate shaft center and the distance between the shafts of the first shaft and the second shaft;
A first hub connecting step of inserting the first shaft into the first hub and coupling both members;
A second hub connecting step of inserting the second shaft into the second hub and coupling both members; and coupling the first hub and the second hub, comprising: Stage:
A coupling disk inserting step of inserting the coupling disk between the first hub and the second hub; and a slider portion restraining and connecting step of restraining the slider portion in the notch portion;
A coupling step comprising:
A method of connecting two shafts by a shaft coupling assembly.

(Function and effect)
This section discloses the highest level concept of the inventive concept. Using a shaft coupling assembly that allows high torque transmission and is easy to assemble and disassemble in a compact space, the slider part fits in the notch part of the specified member only in the turning direction around the shaft axis It is slidably engaged in the other direction, the depth direction, that is, the radial direction or the axial direction, and can be deviated with respect to the axial direction. Substantially provides a way to connect two shafts by a shaft coupling assembly that can absorb all three misalignment factors that are detrimental to the coupling: eccentricity, declination, end play, relative to the wall doing.

  The notch part used by this invention is an open notch, and forms an open space toward the radial direction of the member which has a notch. In the shaft coupling assembly used in this method, the slider portion can be constrained in the notch portion at the time of assembly. First, the shaft is aligned to roughly align the shaft core and the distance between the shafts. If the slider part is constrained in the notch part during assembly after the shaft is connected, all three misalignment elements that are inconvenient for coupling, such as eccentricity, declination, and end play, can be absorbed after assembly. Installation and fine adjustment of each shaft and hub is not required. During maintenance, only the slider part is released, the slider part engagement is disassembled, and sliding and shaking with the grooved wall surface such as the bottom part and side face of the notch part are performed. It is possible to check the wear of the moving slider part and the inner surface of the notch wall and to exchange the slider part. A shaft coupling assembly having a novel structure that can be easily assembled and disassembled at a pace, which can absorb all three misalignment elements that are inevitable for eccentric, declination, and end play couplings. The two shafts are connected to each other by a shaft coupling assembly.

<Invention of Claim 2>
When any one of the members provided with the notch is the hub and has the notch on the disk surface, the coupling step includes connecting means (1) and (2) described below. And (3),
(1) Slider portion holder member capable of forming a pair of notches that can engage the slider portion in the radial direction of the disk, with each of the first hub and the second hub facing each other at 180 ° with the shaft core interposed therebetween. (2) The coupling disk is a cross-shaped coupling disk integrally including the slider portion. (3) The holder member has a screw fastening hole and constitutes a screw connection means together with the screw through hole of the hub. The coupling process using the coupling assembly includes the following stages as a slider portion constraining connection stage after the coupling disk insertion stage:
Two sets of the holder members are screwed to the disk surface of the hub to the first hub, the notches are formed on the pair of holder members and the disk surface, and the slider portion of the cross-shaped coupling disk is formed. A first hub engaging and connecting step for engaging in the notch, and two sets of the holder members on the second hub by screw fastening to the disc surface of the hub, and the notch at the pair of holder members and the disc surface. A coupling step including a second hub engagement connection step for forming a portion and engaging the slider portion of the cross-shaped coupling disk within the notch portion, and after the coupling assembly,
The slider portion engaged with the first hub is a first virtual yoke substantially formed by a cross-shaped coupling disk, and the slider portion is movable in the radial direction within the notch portion. The misalignment of the yoke can be allowed, and the slider can be tilted and moved in the axial direction within the notch. The misalignment of the yoke can be allowed to be misaligned, and the misalignment in the notch. The slider portion is movable in the axial direction and misalignment of the end play is allowed, and the slider portion engaged with the second hub is substantially formed by a cross-shaped coupling disk. A second virtual yoke formed on the notch, wherein the slider is movable in a radial direction within the notch, and the misalignment of the yoke is eccentric. Alignment is allowed, and the slider portion can be inclined in the axial direction so that misalignment of the deflection angle of the yoke can be allowed, and in the notch portion, the slider portion is Virtual second yoke configuration that can move in the axial direction and also allow misalignment of the end play;
The misalignment of eccentricity and declination of both axes is allowed by the virtual first yoke and the virtual second yoke, and the misalignment of decentering and declination in all directions is allowed as a whole. The method of claim 1, wherein the two shafts are coupled by a shaft coupling assembly, wherein the end play is preferably configured to be acceptable.

(Function and effect)
In the shaft coupling assembly of the present invention, the coupling can be easily assembled, and the shaft can be easily connected. The present invention allows for eccentricity, declination and end play. Even if the shaft coupling assembly of the present invention is retrofitted after both shafts are installed, misalignment adjustment work is not necessarily required for connection with the shaft coupling assembly.
That is, in the method of connecting two shafts by the shaft coupling assembly of the present invention, when the member provided with the notch is a hub and the notch can be formed on the disk surface, A cruciform coupling disc is slidably engaged in the notch, and it is not necessary to include misalignment adjustment as an essential step due to eccentricity, declination and end play allowance function. Can be easily obtained.
Then, the slider portion is rotationally restricted by the holder portion formed on the hub disk surface while being engaged, and the torque of both shafts is transmitted through the coupling disk thus engaged.

<Invention of Claim 3>
The torque transmission structure is as follows:
A first hub that can be fitted to a first shaft having a screw fastening hole of a holder member of a slider that forms a notch portion side wall that is 180 ° opposite to each other with an axial center interposed therebetween;
A second hub that can be fitted into a second shaft having a screw fastening hole of a holder member of a slider that forms a cutout side wall that is 180 ° opposite to each other with an axial center interposed therebetween;
A cross-shaped coupling disk including the slider portion; and four sets of holder members, each of which includes two sets;
A shaft coupling assembly comprising:
Bolt fastening means in which the first hub and the holder member can be screwed onto the disk surface; and
The screw fastening holes are disposed on the disk surface so that the notches are formed in parallel along the axial radius by the set of two holder members, and one letter of the cross shape of the coupling disk is formed. The engagement means comprising the slider part and the notch part as the slider part at both ends of the portion to be formed,
A yoke can be substantially formed by the coupling disk, the holder and the first hub, and the engagement means can move the slider portion in the radial direction within the notch portion. It is an engagement means that can permit alignment, and is an engagement means that can allow a misalignment of the deflection angle of the shaft so as to be capable of tilting movement from the center of the shaft in the notch, and in the notch A first yoke configuration that is an engagement means that is axially displaceable and also capable of accepting end play misalignment; and
Bolt fastening means in which the second hub and the holder member can be screwed together on the disk surface; and
The screw fastening hole is disposed on the disk surface so that a notch is formed in parallel along the axial radius by the set of two holder members, and the one letter of the cross of the coupling disk. An engagement means comprising the slider part and the notch part as a slider part at both ends of the part that forms one character intersecting with the part forming
Another yoke can be substantially formed by the coupling disk, the holder, and the second hub, and the engaging means is arranged so that the slider portion can move in the radial direction within the notch portion. Engaging means capable of accepting misalignment of the core, engaging means capable of accepting misalignment of the declination of the shaft so as to be capable of tilting movement from the center of the shaft within the notch, and A second yoke configuration that is an engagement means that can move in the axial direction within the notch and also allow misalignment of the end play;
The two yokes are arranged perpendicularly to each other, and are configured to allow misalignment of the vertical eccentricity and the deflection angle of the shaft on each yoke surface. A shaft coupling assembly that allows for misalignment of eccentricity and declination.

(Function and effect)
In the present invention, one set is defined as two, and the slider portion corresponds to one hub for each set and transmits shaft rotation. The hub that can be fitted to the first shaft is the first hub and the other is the second hub, but the external shapes may be the same. In the hub, a pair of screw holes are formed along the axial direction so as to face each other at 180 ° with the shaft core interposed therebetween. The slider holding portion is fixedly connected to the hub by screw fastening by the bolts penetrating the screw holes. When the holding portion is fastened to the first hub, the first yoke is formed by the cross-shaped coupling disk after assembly. One slider portion of the cruciform disc fits and engages with one notch of a pair of notches formed integrally with the notch 180 ° across the coupling disc disc 180 ° oppositely. The A cross-shaped coupling disk can be arranged between the hubs. The coupling disk has four slider portions as cross-shaped ends, and one slider portion is located in a space between two holder members. The cruciform coupling disk is engaged by a total of four notches, with two sets of notches that are engaged and have a pair of sliders sandwiching the center of the coupling disk. After that, the holder member is fastened to the hub by a screw hole so that the slider portion of the cross-shaped coupling disk inserted between the opposed hubs is sandwiched, and a notch can be formed, and the notch is formed. Then, the slider part is engaged with the notch part. After assembly, the coupling disc is engaged with both hubs and the flange surfaces on the opposite sides. After assembly, the cross-shaped coupling disk, which is rotationally restrained by two slider parts facing the center of the axis, is virtually connected to the first hub and virtual first yoke on one side and to the second hub on the other side. A second yoke is formed. The slider of the cross-shaped coupling disk engages with a notch formed in a space sandwiched between holder members fixedly fastened to the hub, and the shaft rotates into the space after the coupling assembly is assembled. It is constrained in the direction, allowing misalignment of the eccentricity and declination of the virtual yoke and end play, and the axial inclination and axial movement of the yoke outside the radial direction and depth direction of the notch are restricted. However, if the allowable misalignment direction of one yoke is the misalignment allowable direction in the X-axis direction, the other yoke surface crosses perpendicularly with one yoke surface in accordance with the cross shape of the coupling disk after assembly. As a result, misalignment in the Y-axis direction perpendicular to the X-axis is allowed. Both yokes have the effect of allowing the entire construction plane of the XY axis, that is, misalignment of eccentricity and declination in any direction and end play in the notch depth direction.
<Invention of Claim 4>
The shaft coupling assembly according to claim 3, wherein the misalignment is eccentricity, declination, and end play.

(Function and effect)
The present invention provides all types of misalignment, eccentricity, declination, and misalignment due to misalignment allowed in the first yoke, misalignment allowed in the second yoke, and sliding of the slider portion in the notch. It is a shaft coupling assembly that allows end play. Compared to the universal joint, axial misalignment and end play are also realized with the above configuration, and this is a shaft coupling assembly that provides space saving, simpler configuration, and lower cost.

<Invention of Claim 5>
4. The shaft coupling assembly according to claim 3, wherein the torque transmission structure is composed of only a rigid member.

(Function and effect)
A flexible coupling member, thin plate, spring member, or other flexible structural member is not required, and the shaft coupling assembly is composed only of a rigid torque transmission structure component, and can provide a high torque function.

<Invention of Claim 6>
4. The shaft coupling assembly according to claim 3, wherein a member made of a viscoelastic member is used for the slider portion.

(Function and effect)
A flexible member such as a flexible member, a thin plate, or a spring member is not required, but even if a viscoelastic member or engineering plastic having a certain degree of rigidity is used, high torque transmission can be achieved to some extent.

<Invention of Claim 7>
The shaft coupling assembly of claim 3, wherein the coupling disk includes an insulator member.

(Function and effect)
The coupling disk includes an insulator member, and obtains an effect that one shaft and the other shaft are electrically insulated.

<Invention of Claim 8>
The shaft coupling assembly according to claim 3, wherein the notch has a substantially rectangular cross-sectional shape.

(Function and effect)
The notch may have a shape that allows movement in the radial direction of the yoke, and may only allow movement in the axial direction within the notch. The notch portion is a notch having a substantially rectangular cross-sectional shape depending on the combination of the shape of the slider portion, and the slider portion is a combination of honest cuboids, which is advantageous in terms of positioning and processing, which is preferable. This configuration is simple and convenient for assembly and maintenance.

<Invention of Claim 9>
A method of maintaining a shaft coupling assembly including two shafts connected in a manner of connecting two shafts by the shaft coupling assembly of claim 2 includes the following steps:
Removing the holder member from the hub and disassembling the notch forming portion to release the coupling disk;
After the,
A shaft coupling assembly maintenance method comprising a step of replacing a coupling disk or a holder member including the slider portion without disassembling the shaft coupling assembly member of the notch.

(Function and effect)
The shaft coupling assembly method of the present invention provides a method for easily maintaining the coupling. This is because each member, which is a constituent means of the present invention, provides a coupling that allows for eccentricity, declination, and end play when assembled. Even if the shaft coupling assembly of the present invention is retrofitted after both shafts are installed, misalignment adjustment work is not necessarily required for connection with the shaft coupling assembly, and both shafts are installed and hubs are maintained. There is no need to solve the problem, the coupling disk can be replaced in the installed state, and the wear of the slider can be compensated. In this case as well, misalignment adjustment work is always required for shaft coupling of the shaft coupling assembly There is an advantage of not.

As described above, according to the present invention, a shaft coupling assembly having a novel structure that enables transmission of high torque and is easy to assemble and disassemble in a compact space. An object of the present invention is to substantially provide a shaft coupling assembly, an assembly method thereof, and a maintenance method capable of absorbing all three misalignment elements which are inconvenient and unavoidable for the coupling. That is,
(1) Capable of absorbing all three misalignment elements that are inconvenient for coupling, including eccentricity, declination, and end play. (2) Easy to attach / detach coupling even when both shafts are installed and fixed. (3) A coupling with a large service torque can be provided
(4) Provided is a shaft coupling assembly having a new structure that is easy to assemble and disassemble in a compact space.

1 is an exploded perspective schematic view of a shaft coupling assembly 1001 which is an embodiment of a shaft coupling assembly according to the present invention. It is a perspective schematic diagram of the assembly state of the shaft coupling assembly 1001 which is one Embodiment of the shaft coupling assembly which concerns on this invention. It is a front schematic diagram of the assembly state of the shaft coupling assembly 1001 which is one Embodiment of the shaft coupling assembly which concerns on this invention. It is a side schematic diagram of the assembly state of the shaft coupling assembly 1001 which is one Embodiment of the shaft coupling assembly which concerns on this invention. It is a back surface schematic diagram of the assembly state of the shaft coupling assembly 1001 which is one Embodiment of the shaft coupling assembly which concerns on this invention. It is a coupling part cross-sectional schematic diagram of the assembly state of the shaft coupling assembly 1001 which is one Embodiment of the shaft coupling assembly which concerns on this invention. It is a disassembled perspective schematic diagram of the shaft coupling assembly 2001 which is other embodiment of the shaft coupling assembly which concerns on this invention. It is a perspective schematic diagram of the assembly state of the shaft coupling assembly 2001 which is other embodiment of the shaft coupling assembly which concerns on this invention. It is a coupling part cross-sectional schematic diagram of the assembly state of the shaft coupling assembly 2001 which is other embodiment of the shaft coupling assembly which concerns on this invention. 3 is a step basic flowchart S0 of a method for connecting two shafts by a shaft coupling assembly according to the present invention;

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 shows an exploded perspective schematic view of a shaft coupling assembly 1001 which is an embodiment of a shaft coupling assembly according to the present invention, and FIG. 2 shows a shaft which is an embodiment of a shaft coupling assembly according to the present invention. 3 is a schematic perspective view of the coupling assembly 1001 in an assembled state. FIG. 3 is a schematic front view of the assembled state of the shaft coupling assembly 1001 as an embodiment of the shaft coupling assembly according to the present invention. FIG. 5 shows a schematic side view of an assembled state of a shaft coupling assembly 1001 which is an embodiment of the shaft coupling assembly according to the present invention, and FIG. 5 shows a shaft cup which is an embodiment of the shaft coupling assembly according to the present invention. Rear schematic view of ring assembly 1001 in an assembled state FIG. 6 is a schematic cross-sectional view of a coupling portion in an assembled state of a shaft coupling assembly 1001 which is an embodiment of the shaft coupling assembly according to the present invention, and FIG. 7 is a shaft coupling according to the present invention. FIG. 8 is an exploded perspective schematic view of a shaft coupling assembly 2001 which is another embodiment of the assembly, and FIG. 8 is a perspective view of the assembled state of the shaft coupling assembly 2001 which is another embodiment of the shaft coupling assembly according to the present invention. FIG. 9 is a schematic cross-sectional view of a coupling portion in an assembled state of a shaft coupling assembly 2001 which is another embodiment of the shaft coupling assembly according to the present invention. Among these schematic views, in the cross-sectional schematic diagram, the cross-shaped coupling disk cross section including the slider portion and the holder member that holds and supports the slider portion after the assembly of the coupling assembly are hatched. .

  FIG. 10 shows a basic step flow chart S0 of a method of connecting two shafts by a shaft coupling assembly according to the present invention, with the invention category as a method invention.

<One Embodiment of Shaft Coupling Assembly According to the Present Invention>
A step basic flow chart S0 of a method for connecting two shafts by a shaft coupling assembly according to the present invention, as depicted in FIG.
In general, the following steps (1) to (5):
(1) Shaft alignment process (S00)
(2) First hub connection process (S10)
(3) Second hub connection step (S20)
(4) Coupling step (S30)
The coupling process consists of the following steps as sub-processes:
Coupling disk insertion step (S301) and
Slider part constraining connection stage (S302)
including.
The process is more detailed:
The following parts connecting the two torque transmission shafts:
A first hub that is matable with the first shaft;
A second hub that is matable with the second shaft;
With a coupling disc;
Two sets of slider parts, each of which is engageable or connectable to the hub and the coupling disk; and one of the two members of the hub or the coupling disk, A shaft coupling assembly in which two pairs of notch portions are provided with a pair of notches facing each other at 180 ° across the shaft core,
The remaining one kind of member not having the notch is a method of connecting the two shafts by the shaft coupling assembly with the slider part engaged with the notch.
A shaft alignment step of previously aligning the approximate shaft center and the distance between the shafts of the first shaft and the second shaft;
A first hub connecting step of inserting the first shaft into the first hub and coupling both members;
A second hub connecting step of inserting the second shaft into the second hub and coupling both members; and coupling the first hub and the second hub, comprising: Stage:
A coupling disk inserting step of inserting the coupling disk between the first hub and the second hub; and a slider portion restraining and connecting step of restraining the slider portion in the notch portion;
A coupling step comprising:
The method of connecting two shafts by a shaft coupling assembly includes the following, FIG. 1 is an exploded perspective schematic view of one embodiment of a shaft coupling assembly 1001 according to the present invention, and FIG. 2 is a shaft coupling according to the present invention. FIG. 3 is a schematic perspective view of an assembled state of a shaft coupling assembly 1001 which is an embodiment of the assembly; FIG. 3 is a schematic front view of an assembled state of the shaft coupling assembly 1001 which is an embodiment of the shaft coupling assembly according to the present invention; 4 is a schematic side view of an assembled state of a shaft coupling assembly 1001 which is an embodiment of a shaft coupling assembly according to the present invention, and FIG. 5 is an illustration of a shaft coupling assembly 1001 which is an embodiment of a shaft coupling assembly according to the present invention. Assembly form Rear schematic view, is implemented by coupling assembly shown in the coupling part schematic cross-sectional view of the assembled state of the shaft coupling assembly 1001, which is an embodiment of a shaft coupling assembly according to FIG invention. Hereinafter, an embodiment of the shaft coupling assembly 1001 according to the present invention will be described in more detail.

A shaft coupling assembly 1001 according to the present invention includes:
The following members connecting the two torque transmission shafts 1010 and 1020:
A first hub 1011 that is mateable to the first shaft 1010;
A second hub 1021 that can be fitted to the second shaft 1020;
The first shaft 1010 is fitted into the inner hole of the first hub 1011 with a key, and the second shaft 1020 is fitted into the inner hole of the first hub 1021 with, for example, a key;
The torque transmission structure is as follows:
There are screw fastening holes 1116, 1117, 1118, 1119 of holder members 1062, 1063, 1064, 1066 of sliders that form the side walls of the notches 1012, 1013 along the axial direction AX with the shaft core 1004 interposed therebetween. A first hub 1011 that is mateable to the first shaft 1010;
There are screw fastening holes 1326, 1327, 1328, 1329 of slider holder members 1072, 1073, 1074, 1075 that form the side walls of the notches 1022, 1023 facing the axial direction AX across the shaft core 1002. A second hub 1021 that can be fitted to the second shaft 1020;
A cross-shaped coupling disk 1050 including the slider; and four sets of holder members (1062, 1064), (1063, 1065) (1072, 1074), (1073, 1075), each of which is a set of two;
A shaft coupling assembly 1001 comprising:
Bolt fastening means in which the first hub 1011 and the holder members 1062, 1063, 1064, 1066 can be screw-coupled on the disk surface; and
The screw fastening holes 1116, 1117, 1118, and the like are formed in parallel along the axial radius by the holder members 1062, 1063, 1064, 1066 in pairs on the disk surface. 1119 is provided, and both end portions of a portion of the cross of the coupling disk 1050 forming one character are slider portions 1032 and 1033, and the engaging means includes the slider portions 1032 and 1033 and the notches 1012 and 1013. With
A yoke 1034 can be substantially formed by the coupling disk 1050, the holder members 1062, 1063, 1064 and 1066, and the first hub 1011, and the engaging means is a slider in the notches 1012 and 1013. The engagement means that allows misalignment of the eccentricity of the shaft so that the parts 1032 and 1033 can move in the radial direction, and the misalignment of the shaft can be inclined and moved from the center of the shaft within the notch. It is an engagement means that allows alignment, and is an engagement means that can move in the axial direction AX within the notches 1012 and 1013 and also allow misalignment of the end play, and is configured after assembly. A yoke configuration 1034; and
A bolt fastening means in which the second hub 1021 and the holder members 1072, 1073, 1074, 1075 can be screw-coupled onto the disk surface; and
On the disk surface, the screw fastening holes 1326, 1327, 1328, and the holder members 1072, 1073, 1074, and 1075 are formed in parallel so that the notches 1022 and 1023 are formed in parallel along the axial radius. 1329 are provided, and both end portions of the cross-shaped portion of the coupling disk 1050 that forms one character intersecting with the one-character portion are defined as slider portions 1042 and 1043 and the slider portions 1042 and 1043 and the notch portion 1022. , 1023, and engaging means,
Another yoke 1044 can be substantially formed by the coupling disk 1050, the holder members 1072, 1073, 1074, 1075 and the second hub 1021, and the engaging means has notches 1022, 1023. The sliders 1042 and 1043 can be moved in the radial direction, and the engaging means can allow misalignment of the eccentricity of the shaft, and can be inclined and moved from the shaft center in the notches 1022 and 1023. Engaging means that can tolerate misalignment of the axis declination of the shaft, and engaging means that can move in the axial direction AX within the notches 1022 and 1023 and can also tolerate misalignment of the end play. A second yoke configuration 1044 configured after assembly;
The two yokes 1034 and 1044 are arranged perpendicularly to each other after assembly, and are configured to allow misalignment of the vertical eccentricity and the deflection angle of the shafts 1010 and 1020 on each yoke surface. A shaft coupling assembly 1001 that allows misalignment of eccentricity and declination in all directions is acceptable by combining the two yokes 1034 and 1044.

<Operational effect of the present invention shown in the same embodiment>
In the shaft coupling assembly 1001 thus configured, the coupling disk 1050 is disposed between the hubs 1011 and 1021, and the two slider portions 1032 and 1033 are engaged with the hub 1011 and the notches 1012 and 1013 on one side. The first yoke 1034 is disposed. The slider portions 1032 and 1033 are surrounded by the notch portions 1012 and 1013 surrounded by the disk surface 1091 of the hub 1011 and the holders 1062, 1063, 1064 and 1065, so that the end portions 1091 and notches 1012 and 1013 of the hub 1011 The coupling assembly has a yoke shape 1034 such that it is constrained within a space surrounded by the inner surface. The yoke 1034 is actually joined to a disc-shaped disk surface and the arm portion of the yoke protrudes from the disc. The yoke 1034 may be called a virtual yoke because it does not exist as an independent form. However, here, it is expressed as a unit yoke, and is characterized by functionally exhibiting the effect of the yoke.

  The same applies to the second hub 1021, and the notches 1022 and 1023 are engaged to form the slider portions 1042 and 1043 as the second yoke 1044, and the slider portions 1042 and 1043 are connected to the end surface 1092 of the hub 1021. The sliders 1042 and 1043 are sandwiched between notches 1022 and 1023 surrounded by the holders 1072, 1073, 1074, and 1075, and the misalignment of the yoke 1044 is allowed, and the inclination of the shaft outside the yoke surface is restricted. Yes. The allowable misalignment direction of one yoke 1034 surface is defined as the X-axis direction, and the other yoke 1044 surface vertically intersects with the X-axis in accordance with the cross shape of one yoke 1034 surface and the coupling disk 150. In the Y-axis direction, misalignment allowed by the other yoke surface 1044 is also allowed in the Y-axis direction. Both yokes 1034 and 1044 allow misalignment in the plane of the XY axis, that is, in any direction. It exhibits the action.

  In this way, all types of misalignment, eccentricity, and misalignment allowed by the first yoke, misalignment and end play allowed by the second yoke, and sliding of the slider member in the notch are also possible. Declination and end play are acceptable.

These structures do not necessarily require a flexible member, thin plate, spring member or other flexible structural member, but include rigid members 1011, 1012, 1032, 1033 and 1042 and 1043 parts 150, holder members 1062, 1063. , 1064, 1065, 1071, 1073, 1074, 1075 and bolts 1216, 1217, 1218, 1219, 1416, 1417, 1418, and 1419 that connect this to the hub can constitute the torque transmission structure of the coupling assembly 1001. Yes, high torque can be transmitted. The cross-shaped coupling disk may be a cross-shaped coupling disk as in the above embodiment, as compared to a disk-shaped disk having a shape in which one-shaped projections are provided on both sides perpendicular to each other. For example, since the inertia can be further reduced, there is an advantage that the sliding surface of the notch is less worn and the transmission efficiency is higher, and there is no displacement between the shafts of the drive surface, so there is no bending moment, There is an advantage that the overall design can be realized in a compact space with a smaller space.

<Another embodiment of the shaft coupling assembly according to the present invention>
Another embodiment of the shaft coupling assembly according to the present invention is shown in FIG. 7 as an exploded perspective schematic view of a shaft coupling assembly 2001 which is another embodiment of the shaft coupling assembly according to the present invention. FIG. 9 is a schematic perspective view of an assembled state of a shaft coupling assembly 2001 which is another embodiment of the shaft coupling assembly. FIG. 9 is an assembled state of the shaft coupling assembly 2001 which is another embodiment of the shaft coupling assembly according to the present invention. Please refer to the schematic cross-sectional view of the coupling part. The shaft coupling assembly 2001, which is another embodiment, has a fastening bolt screw hole of the holder members 2062, 2063, 2064, 2065, 2072, 2073, 2074, 2075 in a tandem configuration, The bolt through hole is the same as that of the embodiment 1001 except that the bolt through hole has a tandem configuration.

  Here, if the torque transmission structure is a shaft coupling assembly made of only a rigid member, the following effects can be obtained. A rigid member is a flexible member, especially a member made of a viscoelastic member with an intermediate property, such as an engineering plastic, which is an intermediate material for a flexible member such as a thin plate or a spring member. It is also preferable to provide an excellent effect that it is possible to achieve a high torque transmission to some extent and to make the engaging portion slippery and form a good sliding state.

  The notch may have a shape that allows the yoke to move in the radial direction. For example, in one embodiment of the shaft coupling assembly 1001, the notches 1012, 1013, 1022, 1023 are notches having a substantially rectangular cross section due to the combination with the slider part shape of the cross-shaped coupling disk. The slider portions 1032, 1033, 1042, and 1043 of the cross-shaped coupling disks are suitable for positioning convenience and processing because they are a combination with an honest rectangular shape. This configuration is simple and convenient for assembly and maintenance.

    The coupling disk may be made of an insulator member. For example, when polyacetal is used as a constituent material. In this case, it is further possible to obtain an effect that the one shaft and the other shaft are electrically insulated, and in a certain modification, the one shaft and the other shaft are electrically insulated in this way. It is also effective.

As described above, according to the present invention, a shaft coupling assembly having a novel structure that enables transmission of high torque and is easy to assemble and disassemble in a compact space. It provides substantially a shaft coupling assembly that can absorb all three misalignment elements that are inconvenient for the coupling. That is,
(1) Capable of absorbing all three misalignment elements that are inconvenient for coupling, including eccentricity, declination, and end play. (2) Easy to attach / detach coupling even when both shafts are installed and fixed. (3) A coupling with a large service torque can be provided
(4) Provided is a shaft coupling assembly having a new structure that is easy to assemble and disassemble in a compact space.
Here, further, if the coupling disk is made of an insulator member,
(5) One shaft and the other shaft are electrically insulated.

<One Embodiment of a Method for Connecting Two Shafts with a Shaft Coupling Assembly According to the Present Invention>
Referring to FIG. 10, which depicts a step flow chart S0 that includes the steps constituting one embodiment of a method for connecting two shafts by a shaft coupling assembly according to the present invention, one implementation of that means as means used in the present method. Detailed description will be given below with reference to the reference numerals shown in FIGS.

The method S0 of connecting two shafts 1010, 1020 by a shaft coupling assembly according to the present invention, in one embodiment, includes:
The following members connecting the two torque transmission shafts 1010 and 1020:
A first hub 1011 that is mateable to the first shaft 1010;
A second 1021 hub that is matable with the second shaft 1020;
A coupling disc 1050;
Two sets of slider portions, each of which can be engaged with or connected to the hubs 1011 and 1021 and the coupling disk 1050; and either one of the two members of the hub or the coupling disk The member is a shaft coupling assembly in which two pairs of notch portions are provided in total, with the pair of notches facing each other at 180 ° across the shaft core,
A method S0 for connecting the two shafts by the shaft-coupled assembly with the slider part engaged with the notch part of the remaining one kind of member not having the notch part includes the following steps:
A shaft alignment step S00 for aligning the approximate center axis 1002 and the distance between the shafts of the first shaft 1010 and the second shaft 1010 in advance;
A first hub connection step S10 in which the first shaft 1010 is inserted into the first hub 1011 and the two members are coupled;
A second hub connection step S20 in which the second shaft 1020 is inserted into the second hub 1021, and the two members are coupled; and a step of coupling the first hub 1011 and the second hub 1021. In the following stages:
A coupling disk insertion step S301 for inserting the coupling disk 1050 between the first hub 1011 and the second hub 1021, and a slider portion restraining connection step S302 for restraining the slider portion in the notch portion. ;
A coupling step S30 comprising:
Is a method S0 of connecting two shafts by a shaft coupling assembly.
here,
When the one kind of member provided with the notch is the hub 1011, 1021 and has the notch on the disk surfaces 1091, 1092, the coupling step S <b> 30 includes the connecting means described below. (1), (2) and (3),
(1) The first hub 1011 and the second hub are notched portions that can engage the slider portions {(1032, 1033)} and {(1042, 1043)}, which are the slider portions, in the disk radial direction. 1021 slider unit holder members {(1062, 1064), (1063, 1065)}, {(1072, 1074), (1073, 1065)} that can be formed one by one with the shaft core sandwiched between them.
(2) The coupling disk 1050 is a cross-shaped coupling disk 1050 integrally including the slider portions {1032, 1033}, {1042, 1043}.
(3) The holder members {(1062, 1064), (1063, 1065)}, {(1072, 1074), (1073, 1065)} have screw fastening holes {thread through holes in the hubs 1011 and 1021 { (1116, 1118), (1117, 1119)}, {(1326, 1328), (1327, 1329)} and the coupling step S30 using the coupling assembly 1001 that constitutes the screw connection means, After the disk insertion step S301, the slider portion restraining and connecting step S302 includes the following steps (in the above, {} indicates the distinction of the hub, and the parentheses in {} indicate the opposing pair of holder members constituting the notch, the slider. Represents the opposite pair of the axis of the part, and so on)
Two pairs of the holder members (1062, 1064), (1063, 1065) are screwed to the disk surface 1091 of the hub 1011 to the first hub 1011 and the pair of holder members (1062, 1064), (1063, 1065). ) And the disk surface 1091 to form the notches 1012 and 1013 to engage the slider portions 1032 and 1033 of the cross-shaped coupling disc 1050 with the insides of the notches 1012 and 1013. Step (not shown) and two sets of the holder members (1072, 1074) and (1073, 1065) are screwed to the disk surface 1092 of the hub 1021 to the second hub 1021, and the pair of holder members (1072, 1074) ), (1073, 1065) and the disk surface 1092 Second hub engagement connection step of forming the serial notch 1022 engages the slider portion 1042,1043 of the cruciform coupling disk 1050 within the notch 1022, 1023 (not shown)
A coupling step S30 including, after the coupling assembly,
The slider portions 1032 and 1033 engaged with the first hub 1011 are first virtual yokes 1034 substantially formed by a cross-shaped coupling disk 1050, and the sliders are formed in the notches 1012 and 1013. The portions 1032 and 1033 can move in the radial direction, and misalignment of the eccentricity of the yoke 1034 can be allowed. In addition, the slider portions 1032 and 1033 can be moved in the axial direction in the notches 1012 and 1013. The misalignment of the deflection angle of the yoke 1-34 can be allowed, and the slider portions 1032 and 1033 can move in the axial direction AX within the notches 1012 and 1013. An acceptable virtual first yoke 1034 configuration; and the second hub 1021 The slider portions 1042 and 1043 to be engaged are second virtual yokes 1044 substantially formed by a cross-shaped coupling disk 1050, and the slider portions 1042 and 1043 are radial in the notches 1022 and 1023. The yoke 1044 can be moved in the direction, the misalignment of the eccentricity of the yoke 1044 can be allowed, and the sliders 1042 and 1043 can be moved in the axial direction in the notches 1022 and 1023. Virtual misalignment is allowed, and in the notches 1022 and 1023, the slider portions 1042 and 1043 can move in the axial direction AX, and end play misalignment is also allowed. Two-yoke 1044 configuration;
The virtual first yoke 1-43 and the virtual second yoke 1044 are configured to allow the misalignment of the eccentricity and the declination of both axes. This is a method S0 for connecting two shafts by a shaft coupling assembly 1001 characterized in that misalignment is acceptable and end play is also acceptable.

<Operation and effect of this method>
The method S0 for connecting two shafts by the shaft coupling assembly of the present invention is easy to couple, and the shafts can be easily connected. The present invention allows for eccentricity, declination and end play. Even if the shaft coupling assembly 1001 of the present invention is retrofitted after the shafts 1010 and 1020 are installed and the hubs 1011 and 1021 are installed, misalignment adjustment work is performed in the connection between the hubs of the shaft coupling assembly 1001. Not necessarily required.

  When connecting the shafts by the method of the present invention, it is not necessary to include misalignment adjustment work as an essential step due to the eccentricity, declination and end play allowance functions included in the present invention, and in a compact space. The effect that assembly is easy is obtained.

Using a rigid shaft coupling assembly that is easy to assemble and disassemble in a compact space while allowing high torque transmission with rigid components, it is inevitable for eccentric, declination and end play couplings A method for connecting two shafts by a shaft coupling assembly capable of absorbing all three alignment elements is provided. That is,
(1) It is possible to absorb all three misalignment elements that are inconvenient for coupling, including eccentricity, declination, and end play. (2) The coupling can be easily attached and detached even when the shafts on both sides are installed and fixed. 3) Capable of providing a coupling with a large ordinary torque

And during maintenance, the following steps:
The holder members {(1062, 1064), (1063, 1065)}, {(1072, 1074), (1073, 1065)} are removed from the hubs 1011 and 1021, and the notch forming portions 1021, 1013, 1022, and 1023 are disassembled. And releasing the restraint of the coupling disk 1050;
After the,
Without disassembling the shaft coupling assembly member in the notch, the coupling disk 1050 or holder member {(1062, 1064), (1063, 1065)} including the slider portions 1032, 1033, 1042, and 1043, {( 1072, 1074), (1073, 1065)}, a method for maintaining the shaft coupling assembly S0,
The shaft coupling assembly includes a maintenance step that allows the replacement of the cross-shaped coupling disk 1050, which is a consumable part including the slider portions 1032, 1033, 1042, and 1043, without substantially disassembling the shaft coupling assembly member. Maintenance methods can also be provided.

  The maintenance method involves disassembling only the holder members {(1062, 1064), (1063, 1065)}, {(1072, 1074), (1073, 1065)} to form groove-shaped wall surfaces such as the bottom and side surfaces of the notches. It is possible to inspect the wear and tear of the coupling disk 1050 including the slider parts 1032, 1033, 1042, and 1043 that slide and swing, and the wall surface of the notch part, and the coupling disk 1050 can be replaced. A maintenance method for an assembly in which two shafts are connected by a shaft coupling assembly that is easy to assemble and disassemble in a compact space while allowing transmission of high torque, and includes coupling of eccentricity, declination, and end play Two shafts that can absorb all three elements that are inconvenient and unavoidable for misalignment That method allows for maintenance without substantially decomposing the coupling assembly for connecting two shafts by a shaft coupling assembly for providing a substantially provide effectively a.

  Although the embodiment according to the present invention has been described above, the embodiment described here is described in considerable detail. However, the applicant does not intend to limit or limit the appended claims to such detailed description in any way. In addition, the present invention is not limited to such an embodiment, and the part of the configuration of the invention expressed in one embodiment can be adopted in other embodiments, and Various modifications can be made without departing from the spirit of the invention. The effects of the invention taken up here are not limited to appearing in one embodiment at the same time, and it is sufficient that only a part of the effects are achieved to achieve the object of the invention. It would be easy to judge. Accordingly, the invention is broadly limited to specific details, each device and method disclosed and described herein, or combinations thereof, examples, and the spirit of Applicant's general inventive concept. It is possible to deviate from these details without departing from the scope.

  INDUSTRIAL APPLICABILITY The present invention can be used for a shaft coupling assembly for connecting two shafts, and can be used for any rotary power machine such as a vehicle, a ship, a device installed in a building, a factory power device, a power generation device, etc. The present invention can be used for a general-purpose shaft coupling assembly that can be used for a coupling for connecting a plurality of shafts.

1001 Shaft coupling assembly 1002, 1004 Shaft 1010, 1020 Shaft 1011, 1021 Hub 1012, 1013, 1022, 1023 Notch 1216, 1217, 1218, 1219, 1426, 1427, 1428, 1429 Bolt 1116, 1117, 1118, 1119, 1326, 1327, 1328, 1329 Screw through holes 1032, 1033, 1042, 1043 Slider portions 1034, 1044 Virtual yoke 1050 Coupling disks 1062, 1063, 1064, 1065, 1072, 1073, 1074, 1075 Holder members 1091, 1092 Hub disk surface 2001 Shaft coupling assembly 2011, 2021 Hubs 2062, 2063, 2064, 2065, 20 2,2073,2074,2075 holder member

Related applications

This patent application is an international patent application filed on April 5, 2016 with the Japan Patent Office as the receiving office, application number PCT / JP2016 / 061075 “Shaft coupling assembly and two shafts by means of a shaft coupling assembly. Insist on the priority and the benefits of “methods of consolidation and maintenance”. The contents of which are hereby incorporated by reference in their entirety.

  The present invention relates to a shaft coupling assembly that can cope with misalignment, a method of connecting two shafts by the shaft coupling assembly, and a maintenance method.

When power is simply transmitted using a power transmission mechanism, for example, in the case of an output rotary shaft of a power source of an engine or a motor and an input rotary shaft of a pump, both rotary shafts are spaced apart and connected by a coupling. In this case, misalignment usually classified into eccentricity, declination, and end play occurs between two shafts of the output rotation shaft of the engine or motor and the input rotation shaft of the pump. Even if this misalignment is arranged and fixed to a rigid structural device / structure and the connection between the rotating shafts of the device can be precisely adjusted, due to aged deformation of the support structure, wear of component devices and wear of members, Or, when the rotating machine is arranged and fixed on a shell structure such as a ship that has to be a flexible structure, it can be generated dynamically by mechanical action from the surroundings after installation.

  As a result, even if a rigid structure is adopted in the torque transmission part in order to provide a normal and high torque transmission capability, a part of the structure includes a flexible structure that can absorb misalignment.

  Patent Document 1 discloses a rigid coupling device, but includes a flexible structure in which a slit perpendicular to the axis is inserted (Patent Document 1, Claims and FIG. 1).

  Patent Document 2 discloses a shaft coupling that has torsional rigidity and allows misalignment, but includes a flexible structure called a torsion spring mechanism in part. The torsion spring mechanism can “pivot and move in the axial direction to absorb slight misalignment” (paragraph 0048, first line to fourth line of Patent Document 2), “preload is applied” (Paragraph 0050, third line of Patent Document 2).

  U.S. Pat. No. 6,057,089 provides a method of connecting two shafts by a shaft coupling assembly comprising a rigid member including a sleeve (FIG. 1 of U.S. Pat. It does not provide a way to connect the two shafts.

  Thus, in view of absorbing misalignment, it is understood that it is currently difficult to realize a coupling configuration that is entirely composed of only a rigid structure and that is easy to install and maintain an assembly and rotating machine. An invention of a coupling that is composed only of a rigid structure and does not include a flexible structure is disclosed in, for example, Patent Document 4 (Japanese Patent Publication No. 2006-3777918). This invention is an invention composed only of a rigid structure and does not include a flexible structure, but even if misalignment adjustment can be adjusted at the initial stage of installation, in particular, misalignment due to aging or wear of the support structure, or comparison It is difficult to absorb the misalignment caused by the dynamic deformation of the support structure in the case of mounting on a ship placed under a flexible structure. For this reason, Patent Document 4 seems to be provided with a separate wear detection means so that secular change can be observed (Claim 1 of Patent Document 4). This makes it possible to indirectly understand that it is difficult to assemble a coupling that is composed only of a rigid structure and does not include a flexible structure, and to realize the installation and easy maintenance of a rotating machine. The inventor of the present application has tackled this problem from the front in order to achieve both a coupling configuration consisting entirely of a rigid structure and misalignment absorption.

  For assembly, installation, and maintenance of couplings that consist only of a rigid structure and do not include a flexible structure, the misalignment of the rotating machine shaft to be coupled is precisely measured on-site to determine the eccentricity, declination, and end. It is necessary to solve the alignment adjustments such as play by devising the installation. For precision measurement of shaft misalignment, for example, a laser measuring instrument can be used for non-contact measurement. Further, Non-Patent Document 1 uses a laser measuring instrument and computer-aided software in cooperation to determine the amount of misalignment. Disclose technology for precise digital measurement. However, as illustrated in Non-Patent Document 1, even if misalignment is measured by modernization techniques, correction of this misalignment can be done by adjusting the position and inclination of the mounting pedestal and inserting spacers into the pedestal. Usually, there is no choice but to do physical and mechanical care such as adjusting the thickness. Surprisingly, in many cases, alignment adjustment methods must rely on primitive human machine work such as adjusting the position of the mounting pedestal, inserting spacers into the pedestal, experience and manual intuition. It is.

  Thus, an easy method and an easy maintenance method for connecting two shafts by a coupling and a shaft coupling assembly which are composed only of a rigid structure and do not include a flexible structure are not disclosed.

  As described above, in the conventional example, even if an approach having a rigid structure is adopted, one of the members has to be a flexible structure. One approach of flexible structure is to have a thin structure part in part like a slit and include a soft structure, partly a spring structure part to include a soft structure, or like a flexible coupling, In general, a bellows-like shape is included, or a flexible material such as an elastic material or rubber is used as a material for the connection portion to include a flexible structure.

  However, flexible members generally suffer from fatigue problems with thin elastic materials and have low durability. Coupling members made of a flexible material such as rubber are vulnerable to high temperatures / oil, and need to be replaced and maintained in a predetermined cycle. In the first place, it is not suitable for transmission of high torque.

  And if it is to be maintained, it is preferable that the coupling is substantially removable, so that the configuration becomes more complicated. In this respect, Patent Document 5 is a detachable coupling, and “the present invention can shorten the axial length as much as possible, and can be used for a joint of eccentricity, declination, and end play. "Providing a propeller shaft structure that can absorb all of the three disadvantageous misalignment elements and that is easy to attach and detach to and from the input / output shaft, and that is easy to assemble and maintain" (paragraph 0004 of Patent Document 5). However, as in the so-called universal joint configuration, a pocket hole is provided in the yoke orthogonal to the X and Y axes (claim 1 of patent document 5) to absorb eccentricity and declination, and spline fitting (patent According to claim 5 of Document 5, the end play that is axially displaced is absorbed, and the configuration is complicated. After all, splines are arranged in tandem in the universal joint. Equal to that, the a certain degree obliged arrangement distance of the two axes of the connected device is considered not preferred as the present inventors.

  Furthermore, an Oldham joint is known as a joint that absorbs the deviation of the opposing shaft cores. Oldham's joint is a joint in which a floating cam that can be displaced freely during rotation is inserted as an intermediate plate as a shaft joint used when the driving shaft and driven shaft are parallel and the center line is different. is there. (Paragraph 0003 of Patent Document 6) As shown in FIG. 10 of Patent Document 6, “the protrusions provided on the cam 3 in the grooves (or protrusions) provided on the joint bodies 10 and 20 of the driving shaft 1 and the driven shaft 2”. It has a structure in which a shape (or groove) is slidably fitted ”(paragraph 0003 of Patent Document 6), and is an effective mechanism for absorbing eccentricity and end play. However, the sliding member generally suffers from wear and surface fatigue problems and has poor durability. If a non-metallic coupling member is used, it is weak in resistance to frictional heat / lubricating oil, and at least the intermediate plate should be mounted in a predetermined cycle. The necessity of replacement maintenance is unavoidable, but as shown in FIG. 10, in the structure in which the protrusion provided on the intermediate plate is slidably fitted in the groove provided in the opposite hub, the driving shaft and the driven shaft The hub fitted to the shaft had to be removed, and there was a problem that a full-scale maintenance inspection procedure and time were required.

Published Utility Model Gazette Hei 4-34515 Special table 2011-523992 JP2015-36586 Japanese Patent Publication No. 2006-3777918 JP 2003-56591 A JP-A-6-74241

http://www.pruftechnik.com/solutions/applications/shaft-alignment.html, Home> Solutions> Applications> Shaft alignment, Prooftechnique website, February 27, 2016

Therefore, a main problem of the present invention is a shaft coupling assembly having a new structure that enables transmission of high torque, is easy to assemble and disassemble in a compact space, and does not require labor and time for maintenance inspection. It is to provide a shaft coupling assembly that is capable of absorbing all three misalignment elements that are unavoidable for declination and end play coupling. That is,
(1) It is inconvenient for coupling of eccentricity, declination, and end play, and can absorb all three misalignment elements that are generally unavoidable. (2) Even when the shafts on both sides are installed and fixed, the coupling can be attached and detached. It is easy (3) It is possible to provide a coupling with a large common torque
It is an object of the present invention to provide a shaft coupling assembly and a method for connecting two shafts by the shaft coupling assembly and a maintenance method.

The present invention that has solved the above problems is as follows.
<Invention of Claim 1>
A shaft coupling assembly that does not include a flexible structural member in the torque transmission structure, and connects the two torque transmission shafts as follows:
A first hub that is matable with the first shaft;
A second hub that is matable with the second shaft;
With a coupling disc;
Two sets of slider parts, one set of which can be engaged or connected to the hub and the coupling disk; and one of the two members of the hub or the coupling disk, A shaft coupling assembly in which two pairs of notch portions are provided with a pair of notches facing each other at 180 ° across the shaft core,
How the remaining one member without the notch portion connecting the two shafts by a shaft coupling assembly the slider portion engaged with the cutout portion is provided, each of the following steps:
A shaft alignment step of previously aligning the approximate shaft center and the distance between the shafts of the first shaft and the second shaft;
A first hub connecting step of inserting the first shaft into the first hub and coupling both members;
A second hub connecting step of inserting the second shaft into the second hub and connecting both members; and a subsequent step ;
Coupling the first hub and the second hub, the following steps:
A coupling disk inserting step of inserting the coupling disk between the first hub and the second hub; and a set of the slider portions constrained in the notch portion and facing each other by 180 ° The notch and another set of notches generate a torque transmission path in the coupling disk member, and the torque transmission member constituting the notch on the downstream side of the torque transmission path straddles the notch. A slider portion constraining connection stage that constitutes a torque transmission body that does not include a torque transmission body coupled to a torque transmission member that constitutes a notch portion on the upstream side of the transmission path ;
A coupling step comprising:
Only including, after assembly, is a method for connecting two shafts by a shaft coupling assembly is applicable to process again the coupling step of releasing the restraining connection of the slider portion even in a state where the shaft is installed .

(Function and effect)
This section discloses the highest level concept of the inventive concept. Using a shaft coupling assembly that allows high torque transmission and is easy to assemble and disassemble in a compact space, the slider part fits in the notch part of the specified member only in the turning direction around the shaft axis It is slidably engaged in the other direction, the depth direction, that is, the radial direction or the axial direction, and can be deviated with respect to the axial direction. Substantially provides a way to connect two shafts by a shaft coupling assembly that can absorb all three misalignment factors that are detrimental to the coupling: eccentricity, declination, end play, relative to the wall doing.

  The notch part used by this invention is an open notch, and forms an open space toward the radial direction of the member which has a notch. In the shaft coupling assembly used in this method, the slider portion can be constrained in the notch portion at the time of assembly. First, the shaft is aligned to roughly align the shaft core and the distance between the shafts. If the slider part is constrained in the notch part during assembly after the shaft is connected, all three misalignment elements that are inconvenient for coupling, such as eccentricity, declination, and end play, can be absorbed after assembly. Installation and fine adjustment of each shaft and hub is not required. During maintenance, only the slider part is released, the slider part engagement is disassembled, and sliding and shaking with the grooved wall surface such as the bottom part and side face of the notch part are performed. It is possible to check the wear of the moving slider part and the inner surface of the notch wall and to exchange the slider part. A shaft coupling assembly having a novel structure that can be easily assembled and disassembled at a pace, which can absorb all three misalignment elements that are inevitable for eccentric, declination, and end play couplings. The two shafts are connected to each other by a shaft coupling assembly.

<Invention of Claim 2>
When any one of the members provided with the notch is the hub and has the notch on the disk surface, the coupling step includes connecting means (1) and (2) described below. And (3),
(1) Slider portion holder member capable of forming a pair of notches that can engage the slider portion in the radial direction of the disk, with each of the first hub and the second hub facing each other at 180 ° with the shaft core interposed therebetween. (2) The coupling disk is a cross-shaped coupling disk integrally including the slider portion. (3) The holder member has a screw fastening hole and constitutes a screw connection means together with the screw through hole of the hub. The coupling process using the coupling assembly includes the following stages as a slider portion constraining connection stage after the coupling disk insertion stage:
Two sets of the holder members are screwed to the disk surface of the hub to the first hub, the notches are formed on the pair of holder members and the disk surface, and the slider portion of the cross-shaped coupling disk is formed. A first hub engaging and connecting step for engaging in the notch, and two sets of the holder members on the second hub by screw fastening to the disc surface of the hub, and the notch at the pair of holder members and the disc surface. A coupling step including a second hub engagement connection step for forming a portion and engaging the slider portion of the cross-shaped coupling disk within the notch portion, and after the coupling assembly,
The slider portion engaged with the first hub is a first virtual yoke substantially formed by a cross-shaped coupling disk, and the slider portion is movable in the radial direction within the notch portion. The misalignment of the yoke can be allowed, and the slider can be tilted and moved in the axial direction within the notch. The misalignment of the yoke can be allowed to be misaligned, and the misalignment in the notch. The slider portion is movable in the axial direction and misalignment of the end play is allowed, and the slider portion engaged with the second hub is substantially formed by a cross-shaped coupling disk. A second virtual yoke formed on the notch, wherein the slider is movable in a radial direction within the notch, and the misalignment of the yoke is eccentric. Alignment is allowed, and the slider portion can be inclined in the axial direction so that misalignment of the deflection angle of the yoke can be allowed, and in the notch portion, the slider portion is Virtual second yoke configuration that can move in the axial direction and also allow misalignment of the end play;
The misalignment of eccentricity and declination of both axes is allowed by the virtual first yoke and the virtual second yoke, and the misalignment of decentering and declination in all directions is allowed as a whole. The method of claim 1, wherein the two shafts are coupled by a shaft coupling assembly, wherein the end play is preferably configured to be acceptable.

(Function and effect)
In the shaft coupling assembly of the present invention, the coupling can be easily assembled, and the shaft can be easily connected. The present invention allows for eccentricity, declination and end play. Even if the shaft coupling assembly of the present invention is retrofitted after both shafts are installed, misalignment adjustment work is not necessarily required for connection with the shaft coupling assembly.
That is, in the method of connecting two shafts by the shaft coupling assembly of the present invention, when the member provided with the notch is a hub and the notch can be formed on the disk surface, A cruciform coupling disc is slidably engaged in the notch, and it is not necessary to include misalignment adjustment as an essential step due to eccentricity, declination and end play allowance function. Can be easily obtained.
Then, the slider portion is rotationally restricted by the holder portion formed on the hub disk surface while being engaged, and the torque of both shafts is transmitted through the coupling disk thus engaged.

<Invention of Claim 3>
A shaft coupling assembly that does not include a flexible structure member in the torque transmission structure , and the torque transmission structure includes the following:
A first hub that can be fitted to a first shaft having a screw fastening hole of a holder member of a slider that forms a notch portion side wall that is 180 ° opposite to each other with an axial center interposed therebetween;
A second hub that can be fitted into a second shaft having a screw fastening hole of a holder member of a slider that forms a cutout side wall that is 180 ° opposite to each other with an axial center interposed therebetween;
A cross-shaped coupling disk including the slider portion; and four sets of holder members, each of which includes two sets;
A shaft coupling assembly comprising:
Bolt fastening means in which the first hub and the holder member can be screwed onto the disk surface; and
The screw fastening holes are disposed on the disk surface so that the notches are formed in parallel along the axial radius by the set of two holder members, and one letter of the cross shape of the coupling disk is formed. The engagement means comprising the slider part and the notch part as the slider part at both ends of the portion to be formed,
A yoke can be substantially formed by the coupling disk, the holder and the first hub, and the engagement means can move the slider portion in the radial direction within the notch portion. It is an engagement means that can permit alignment, and is an engagement means that can allow a misalignment of the deflection angle of the shaft so as to be capable of tilting movement from the center of the shaft in the notch, and in the notch A first yoke configuration that is an engagement means that is axially displaceable and also capable of accepting end play misalignment; and
Bolt fastening means in which the second hub and the holder member can be screwed together on the disk surface; and
The screw fastening hole is disposed on the disk surface so that a notch is formed in parallel along the axial radius by the set of two holder members, and the one letter of the cross of the coupling disk. An engagement means comprising the slider part and the notch part as a slider part at both ends of the part that forms one character intersecting with the part forming
Another yoke can be substantially formed by the coupling disk, the holder, and the second hub, and the engaging means is arranged so that the slider portion can move in the radial direction within the notch portion. Engaging means capable of accepting misalignment of the core, engaging means capable of accepting misalignment of the declination of the shaft so as to be capable of tilting movement from the center of the shaft within the notch, and A second yoke configuration that is an engagement means that can move in the axial direction within the notch and also allow misalignment of the end play;
The two yokes are arranged perpendicularly to each other, and are configured to allow misalignment of the vertical eccentricity and the deflection angle of the shaft on each yoke surface. A shaft coupling assembly that allows for misalignment of eccentricity and declination.

(Function and effect)
In the present invention, one set is defined as two, and the slider portion corresponds to one hub for each set and transmits shaft rotation. The hub that can be fitted to the first shaft is the first hub and the other is the second hub, but the external shapes may be the same. In the hub, a pair of screw holes are formed along the axial direction so as to face each other at 180 ° with the shaft core interposed therebetween. The slider holding portion is fixedly connected to the hub by screw fastening by the bolts penetrating the screw holes. When the holding portion is fastened to the first hub, the first yoke is formed by the cross-shaped coupling disk after assembly. One slider portion of the cruciform disc fits and engages with one notch of a pair of notches formed integrally with the notch 180 ° across the coupling disc disc 180 ° oppositely. The A cross-shaped coupling disk can be arranged between the hubs. The coupling disk has four slider portions as cross-shaped ends, and one slider portion is located in a space between two holder members. The cruciform coupling disk is engaged by a total of four notches, with two sets of notches that are engaged and have a pair of sliders sandwiching the center of the coupling disk. After that, the holder member is fastened to the hub by a screw hole so that the slider portion of the cross-shaped coupling disk inserted between the opposed hubs is sandwiched, and a notch can be formed, and the notch is formed. Then, the slider part is engaged with the notch part. After assembly, the coupling disc is engaged with both hubs and the flange surfaces on the opposite sides. After assembly, the cross-shaped coupling disk, which is rotationally restrained by two slider parts facing the center of the axis, is virtually connected to the first hub and virtual first yoke on one side and to the second hub on the other side. A second yoke is formed. The slider of the cross-shaped coupling disk engages with a notch formed in a space sandwiched between holder members fixedly fastened to the hub, and the shaft rotates into the space after the coupling assembly is assembled. It is constrained in the direction, allowing misalignment of the eccentricity and declination of the virtual yoke and end play, and the axial inclination and axial movement of the yoke outside the radial direction and depth direction of the notch are restricted. However, if the allowable misalignment direction of one yoke is the misalignment allowable direction in the X-axis direction, the other yoke surface crosses perpendicularly with one yoke surface in accordance with the cross shape of the coupling disk after assembly. As a result, misalignment in the Y-axis direction perpendicular to the X-axis is allowed. Both yokes have the effect of allowing the entire construction plane of the XY axis, that is, misalignment of eccentricity and declination in any direction and end play in the notch depth direction.
<Invention of Claim 4>
The shaft coupling assembly according to claim 3, wherein the misalignment is eccentricity, declination, and end play.

(Function and effect)
The present invention provides all types of misalignment, eccentricity, declination, and misalignment due to misalignment allowed in the first yoke, misalignment allowed in the second yoke, and sliding of the slider portion in the notch. It is a shaft coupling assembly that allows end play. Compared to the universal joint, axial misalignment and end play are also realized with the above configuration, and this is a shaft coupling assembly that provides space saving, simpler configuration, and lower cost.

<Invention of Claim 5>
4. The shaft coupling assembly according to claim 3, wherein the torque transmission structure is composed of only a rigid member.

(Function and effect)
A flexible coupling member, thin plate, spring member, or other flexible structural member is not required, and the shaft coupling assembly is composed only of a rigid torque transmission structure component, and can provide a high torque function.

<Invention of Claim 6>
4. The shaft coupling assembly according to claim 3, wherein a member made of a viscoelastic member is used for the slider portion.

(Function and effect)
A flexible member such as a flexible member, a thin plate, or a spring member is not required, but even if a viscoelastic member or engineering plastic having a certain degree of rigidity is used, high torque transmission can be achieved to some extent.

<Invention of Claim 7>
The shaft coupling assembly of claim 3, wherein the coupling disk includes an insulator member.

(Function and effect)
The coupling disk includes an insulator member, and obtains an effect that one shaft and the other shaft are electrically insulated.

<Invention of Claim 8>
The shaft coupling assembly according to claim 3, wherein the notch has a substantially rectangular cross-sectional shape.

(Function and effect)
The notch may have a shape that allows movement in the radial direction of the yoke, and may only allow movement in the axial direction within the notch. The notch portion is a notch having a substantially rectangular cross-sectional shape depending on the combination of the shape of the slider portion, and the slider portion is a combination of honest cuboids, which is advantageous in terms of positioning and processing, which is preferable. This configuration is simple and convenient for assembly and maintenance.

<Invention of Claim 9>
A method of maintaining a shaft coupling assembly including two shafts connected in a manner of connecting two shafts by the shaft coupling assembly of claim 2 includes the following steps:
Step of solving the constraint of the coupling disc Remove the holder member from said hub;
After the,
A method of maintaining a shaft coupling assembly, comprising the step of replacing a coupling disk or holder member including the slider portion .

(Function and effect)
The shaft coupling assembly method of the present invention provides a method for easily maintaining the coupling. This is because each member, which is a constituent means of the present invention, provides a coupling that allows for eccentricity, declination, and end play when assembled. Even if the shaft coupling assembly of the present invention is retrofitted after both shafts are installed, misalignment adjustment work is not necessarily required for connection with the shaft coupling assembly, and both shafts are installed and hubs are maintained. There is no need to solve the problem, the coupling disk can be replaced in the installed state, and the wear of the slider can be compensated. In this case as well, misalignment adjustment work is always required for shaft coupling of the shaft coupling assembly There is an advantage of not.

As described above, according to the present invention, a shaft coupling assembly having a novel structure that enables transmission of high torque and is easy to assemble and disassemble in a compact space. An object of the present invention is to substantially provide a shaft coupling assembly, an assembly method thereof, and a maintenance method capable of absorbing all three misalignment elements which are inconvenient and unavoidable for the coupling. That is,
(1) Capable of absorbing all three misalignment elements that are inconvenient for coupling, including eccentricity, declination, and end play. (2) Easy to attach / detach coupling even when both shafts are installed and fixed. (3) A coupling with a large service torque can be provided
(4) Provided is a shaft coupling assembly having a new structure that is easy to assemble and disassemble in a compact space.

1 is an exploded perspective schematic view of a shaft coupling assembly 1001 which is an embodiment of a shaft coupling assembly according to the present invention. It is a perspective schematic diagram of the assembly state of the shaft coupling assembly 1001 which is one Embodiment of the shaft coupling assembly which concerns on this invention. It is a front schematic diagram of the assembly state of the shaft coupling assembly 1001 which is one Embodiment of the shaft coupling assembly which concerns on this invention. It is a side schematic diagram of the assembly state of the shaft coupling assembly 1001 which is one Embodiment of the shaft coupling assembly which concerns on this invention. It is a back surface schematic diagram of the assembly state of the shaft coupling assembly 1001 which is one Embodiment of the shaft coupling assembly which concerns on this invention. It is a coupling part cross-sectional schematic diagram of the assembly state of the shaft coupling assembly 1001 which is one Embodiment of the shaft coupling assembly which concerns on this invention. It is a disassembled perspective schematic diagram of the shaft coupling assembly 2001 which is other embodiment of the shaft coupling assembly which concerns on this invention. It is a perspective schematic diagram of the assembly state of the shaft coupling assembly 2001 which is other embodiment of the shaft coupling assembly which concerns on this invention. It is a coupling part cross-sectional schematic diagram of the assembly state of the shaft coupling assembly 2001 which is other embodiment of the shaft coupling assembly which concerns on this invention. 3 is a step basic flowchart S0 of a method for connecting two shafts by a shaft coupling assembly according to the present invention;

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 shows an exploded perspective schematic view of a shaft coupling assembly 1001 which is an embodiment of a shaft coupling assembly according to the present invention, and FIG. 2 shows a shaft which is an embodiment of a shaft coupling assembly according to the present invention. 3 is a schematic perspective view of the coupling assembly 1001 in an assembled state. FIG. 3 is a schematic front view of the assembled state of the shaft coupling assembly 1001 as an embodiment of the shaft coupling assembly according to the present invention. FIG. 5 shows a schematic side view of an assembled state of a shaft coupling assembly 1001 which is an embodiment of the shaft coupling assembly according to the present invention, and FIG. 5 shows a shaft cup which is an embodiment of the shaft coupling assembly according to the present invention. Rear schematic view of ring assembly 1001 in an assembled state FIG. 6 is a schematic cross-sectional view of a coupling portion in an assembled state of a shaft coupling assembly 1001 which is an embodiment of the shaft coupling assembly according to the present invention, and FIG. 7 is a shaft coupling according to the present invention. FIG. 8 is an exploded perspective schematic view of a shaft coupling assembly 2001 which is another embodiment of the assembly, and FIG. 8 is a perspective view of the assembled state of the shaft coupling assembly 2001 which is another embodiment of the shaft coupling assembly according to the present invention. FIG. 9 is a schematic cross-sectional view of a coupling portion in an assembled state of a shaft coupling assembly 2001 which is another embodiment of the shaft coupling assembly according to the present invention. Among these schematic views, in the cross-sectional schematic diagram, the cross-shaped coupling disk cross section including the slider portion and the holder member that holds and supports the slider portion after the assembly of the coupling assembly are hatched. .

  FIG. 10 shows a basic step flow chart S0 of a method of connecting two shafts by a shaft coupling assembly according to the present invention, with the invention category as a method invention.

<One Embodiment of Shaft Coupling Assembly According to the Present Invention>
A step basic flow chart S0 of a method for connecting two shafts by a shaft coupling assembly according to the present invention, as depicted in FIG.
In general, the following steps (1) to (5):
(1) Shaft alignment process (S00)
(2) First hub connection process (S10)
(3) Second hub connection step (S20)
(4) Coupling step (S30)
The coupling process consists of the following steps as sub-processes:
Coupling disk insertion step (S301) and
Slider part constraining connection stage (S302)
including.
The process is more detailed:
The following parts connecting the two torque transmission shafts:
A first hub that is matable with the first shaft;
A second hub that is matable with the second shaft;
With a coupling disc;
Two sets of slider parts, each of which is engageable or connectable to the hub and the coupling disk; and one of the two members of the hub or the coupling disk, A shaft coupling assembly in which two pairs of notch portions are provided with a pair of notches facing each other at 180 ° across the shaft core,
The remaining one kind of member not having the notch is a method of connecting the two shafts by the shaft coupling assembly with the slider part engaged with the notch.
A shaft alignment step of previously aligning the approximate shaft center and the distance between the shafts of the first shaft and the second shaft;
A first hub connecting step of inserting the first shaft into the first hub and coupling both members;
A second hub connecting step of inserting the second shaft into the second hub and coupling both members; and coupling the first hub and the second hub, comprising: Stage:
A coupling disk inserting step of inserting the coupling disk between the first hub and the second hub; and a slider portion restraining and connecting step of restraining the slider portion in the notch portion;
A coupling step comprising:
The method of connecting two shafts by a shaft coupling assembly includes the following, FIG. 1 is an exploded perspective schematic view of one embodiment of a shaft coupling assembly 1001 according to the present invention, and FIG. 2 is a shaft coupling according to the present invention. FIG. 3 is a schematic perspective view of an assembled state of a shaft coupling assembly 1001 which is an embodiment of the assembly; FIG. 3 is a schematic front view of an assembled state of the shaft coupling assembly 1001 which is an embodiment of the shaft coupling assembly according to the present invention; 4 is a schematic side view of an assembled state of a shaft coupling assembly 1001 which is an embodiment of a shaft coupling assembly according to the present invention, and FIG. 5 is an illustration of a shaft coupling assembly 1001 which is an embodiment of a shaft coupling assembly according to the present invention. Assembly form Rear schematic view, is implemented by coupling assembly shown in the coupling part schematic cross-sectional view of the assembled state of the shaft coupling assembly 1001, which is an embodiment of a shaft coupling assembly according to FIG invention. Hereinafter, an embodiment of the shaft coupling assembly 1001 according to the present invention will be described in more detail.

A shaft coupling assembly 1001 according to the present invention includes:
The following members connecting the two torque transmission shafts 1010 and 1020:
A first hub 1011 that is mateable to the first shaft 1010;
A second hub 1021 that can be fitted to the second shaft 1020;
The first shaft 1010 is fitted into the inner hole of the first hub 1011 with a key, and the second shaft 1020 is fitted into the inner hole of the first hub 1021 with, for example, a key;
The torque transmission structure is as follows:
There are screw fastening holes 1116, 1117, 1118, 1119 of holder members 1062, 1063, 1064, 1066 of sliders that form the side walls of the notches 1012, 1013 along the axial direction AX with the shaft core 1004 interposed therebetween. A first hub 1011 that is mateable to the first shaft 1010;
There are screw fastening holes 1326, 1327, 1328, 1329 of slider holder members 1072, 1073, 1074, 1075 that form the side walls of the notches 1022, 1023 facing the axial direction AX across the shaft core 1002. A second hub 1021 that can be fitted to the second shaft 1020;
A cross-shaped coupling disk 1050 including the slider; and four sets of holder members (1062, 1064), (1063, 1065) (1072, 1074), (1073, 1075), each of which is a set of two;
A shaft coupling assembly 1001 comprising:
Bolt fastening means in which the first hub 1011 and the holder members 1062, 1063, 1064, 1066 can be screw-coupled on the disk surface; and
The screw fastening holes 1116, 1117, 1118, and the like are formed in parallel along the axial radius by the holder members 1062, 1063, 1064, 1066 in pairs on the disk surface. 1119 is provided, and both end portions of a portion of the cross of the coupling disk 1050 forming one character are slider portions 1032 and 1033, and the engaging means includes the slider portions 1032 and 1033 and the notches 1012 and 1013. With
A yoke 1034 can be substantially formed by the coupling disk 1050, the holder members 1062, 1063, 1064 and 1066, and the first hub 1011, and the engaging means is a slider in the notches 1012 and 1013. The engagement means that allows misalignment of the eccentricity of the shaft so that the parts 1032 and 1033 can move in the radial direction, and the misalignment of the shaft can be inclined and moved from the center of the shaft within the notch. It is an engagement means that allows alignment, and is an engagement means that can move in the axial direction AX within the notches 1012 and 1013 and also allow misalignment of the end play, and is configured after assembly. A yoke configuration 1034; and
A bolt fastening means in which the second hub 1021 and the holder members 1072, 1073, 1074, 1075 can be screw-coupled onto the disk surface; and
On the disk surface, the screw fastening holes 1326, 1327, 1328, and the holder members 1072, 1073, 1074, and 1075 are formed in parallel so that the notches 1022 and 1023 are formed in parallel along the axial radius. 1329 are provided, and both end portions of the cross-shaped portion of the coupling disk 1050 that forms one character intersecting with the one-character portion are defined as slider portions 1042 and 1043 and the slider portions 1042 and 1043 and the notch portion 1022. , 1023, and engaging means,
Another yoke 1044 can be substantially formed by the coupling disk 1050, the holder members 1072, 1073, 1074, 1075 and the second hub 1021, and the engaging means has notches 1022, 1023. The sliders 1042 and 1043 can be moved in the radial direction, and the engaging means can allow misalignment of the eccentricity of the shaft, and can be inclined and moved from the shaft center in the notches 1022 and 1023. Engaging means that can tolerate misalignment of the axis declination of the shaft, and engaging means that can move in the axial direction AX within the notches 1022 and 1023 and can also tolerate misalignment of the end play. A second yoke configuration 1044 configured after assembly;
The two yokes 1034 and 1044 are arranged perpendicularly to each other after assembly, and are configured to allow misalignment of the vertical eccentricity and the deflection angle of the shafts 1010 and 1020 on each yoke surface. A shaft coupling assembly 1001 that allows misalignment of eccentricity and declination in all directions is acceptable by combining the two yokes 1034 and 1044.

<Operational effect of the present invention shown in the same embodiment>
In the shaft coupling assembly 1001 thus configured, the coupling disk 1050 is disposed between the hubs 1011 and 1021, and the two slider portions 1032 and 1033 are engaged with the hub 1011 and the notches 1012 and 1013 on one side. The first yoke 1034 is disposed. The slider portions 1032 and 1033 are surrounded by the notch portions 1012 and 1013 surrounded by the disk surface 1091 of the hub 1011 and the holders 1062, 1063, 1064 and 1065, so that the end portions 1091 and notches 1012 and 1013 of the hub 1011 The coupling assembly has a yoke shape 1034 such that it is constrained within a space surrounded by the inner surface. The yoke 1034 is actually joined to a disc-shaped disk surface and the arm portion of the yoke protrudes from the disc. The yoke 1034 may be called a virtual yoke because it does not exist as an independent form. However, here, it is expressed as a unit yoke, and is characterized by functionally exhibiting the effect of the yoke.

The same applies to the second hub 1021, and the notches 1022 and 1023 are engaged to form the slider portions 1042 and 1043 as the second yoke 1044, and the slider portions 1042 and 1043 are connected to the end surface 1092 of the hub 1021. The sliders 1042 and 1043 are sandwiched between the notches 1022 and 1023 surrounded by the holders 1072, 1073, 1074, and 1075 to allow misalignment of the yoke 1044, and the inclination of the shaft outside the yoke surface is restricted. Yes. The misalignment direction is allowed in one of the yoke 1034 face the X-axis direction, the other yoke 1044 surface X-axis and perpendicularly intersecting in accordance with the cross-shaped one of the yokes 1034 side and the coupling disk 1 0 50, the If one side is in the Y-axis direction, misalignment allowed by the other yoke surface 1044 is allowed in the Y-axis direction, and both yokes 1034 and 1044 allow misalignment in the plane of the XY axis, that is, in any direction. It has the effect of being done.

  In this way, all types of misalignment, eccentricity, and misalignment allowed by the first yoke, misalignment and end play allowed by the second yoke, and sliding of the slider member in the notch are also possible. Declination and end play are acceptable.

These configurations necessarily flexible member, sheet, soft structure member of the spring member or the like is not required, 1 0 50 comprising a rigid member 1011,1012,1032,1033 and 1042 and 1043 parts of the holder member 1062 , 1063, 1064, 1065, 1071, 1073, 1074, 1075 and bolts 1216, 1217, 1218, 1219, 1416, 1417, 1418, 1419 connecting the hub to the hub constitute a torque transmission structure of the coupling assembly 1001. It is possible to transmit high torque. The cross-shaped coupling disk may be a cross-shaped coupling disk as in the above embodiment, as compared to a disk-shaped disk having a shape in which one-shaped projections are provided on both sides perpendicular to each other. For example, since the inertia can be further reduced, there is an advantage that the sliding surface of the notch is less worn and the transmission efficiency is higher, and there is no displacement between the shafts of the drive surface, so there is no bending moment, There is an advantage that the overall design can be realized in a compact space with a smaller space.

<Another embodiment of the shaft coupling assembly according to the present invention>
Another embodiment of the shaft coupling assembly according to the present invention is shown in FIG. 7 as an exploded perspective schematic view of a shaft coupling assembly 2001 which is another embodiment of the shaft coupling assembly according to the present invention. FIG. 9 is a schematic perspective view of an assembled state of a shaft coupling assembly 2001 which is another embodiment of the shaft coupling assembly. FIG. 9 is an assembled state of the shaft coupling assembly 2001 which is another embodiment of the shaft coupling assembly according to the present invention. Please refer to the schematic cross-sectional view of the coupling part. The shaft coupling assembly 2001, which is another embodiment, has a fastening bolt screw hole of the holder members 2062, 2063, 2064, 2065, 2072, 2073, 2074, 2075 in a tandem configuration, The bolt through hole is the same as that of the embodiment 1001 except that the bolt through hole has a tandem configuration.

  Here, if the torque transmission structure is a shaft coupling assembly made of only a rigid member, the following effects can be obtained. A rigid member is a flexible member, especially a member made of a viscoelastic member with an intermediate property, such as an engineering plastic, which is an intermediate material for a flexible member such as a thin plate or a spring member. It is also preferable to provide an excellent effect that it is possible to achieve a high torque transmission to some extent and to make the engaging portion slippery and form a good sliding state.

  The notch may have a shape that allows the yoke to move in the radial direction. For example, in one embodiment of the shaft coupling assembly 1001, the notches 1012, 1013, 1022, 1023 are notches having a substantially rectangular cross section due to the combination with the slider part shape of the cross-shaped coupling disk. The slider portions 1032, 1033, 1042, and 1043 of the cross-shaped coupling disks are suitable for positioning convenience and processing because they are a combination with an honest rectangular shape. This configuration is simple and convenient for assembly and maintenance.

    The coupling disk may be made of an insulator member. For example, when polyacetal is used as a constituent material. In this case, it is further possible to obtain an effect that the one shaft and the other shaft are electrically insulated, and in a certain modification, the one shaft and the other shaft are electrically insulated in this way. It is also effective.

As described above, according to the present invention, a shaft coupling assembly having a novel structure that enables transmission of high torque and is easy to assemble and disassemble in a compact space. It provides substantially a shaft coupling assembly that can absorb all three misalignment elements that are inconvenient for the coupling. That is,
(1) Capable of absorbing all three misalignment elements that are inconvenient for coupling, including eccentricity, declination, and end play. (2) Easy to attach / detach coupling even when both shafts are installed and fixed. (3) A coupling with a large service torque can be provided
(4) Provided is a shaft coupling assembly having a new structure that is easy to assemble and disassemble in a compact space.
Here, further, if the coupling disk is made of an insulator member,
(5) One shaft and the other shaft are electrically insulated.

<One Embodiment of a Method for Connecting Two Shafts with a Shaft Coupling Assembly According to the Present Invention>
Referring to FIG. 10, which depicts a step flow chart S0 that includes the steps constituting one embodiment of a method for connecting two shafts by a shaft coupling assembly according to the present invention, one implementation of that means as means used in the present method. Detailed description will be given below with reference to the reference numerals shown in FIGS.

The method S0 of connecting two shafts 1010, 1020 by a shaft coupling assembly according to the present invention, in one embodiment, includes:
The following members connecting the two torque transmission shafts 1010 and 1020:
A first hub 1011 that is mateable to the first shaft 1010;
A second 1021 hub that is matable with the second shaft 1020;
A coupling disc 1050;
Two sets of slider portions, each of which can be engaged with or connected to the hubs 1011 and 1021 and the coupling disk 1050; and either one of the two members of the hub or the coupling disk The member is a shaft coupling assembly in which two pairs of notch portions are provided in total, with the pair of notches facing each other at 180 ° across the shaft core,
The method S0 for connecting the two shafts by the shaft coupling assembly in which the remaining one kind of member not having the notch is provided with a slider portion that engages with the notch includes the following steps:
A shaft alignment step S00 for aligning the approximate center axis 1002 and the distance between the shafts of the first shaft 1010 and the second shaft 1010 in advance;
A first hub connection step S10 in which the first shaft 1010 is inserted into the first hub 1011 and the two members are coupled;
Inserting said second shaft 1020 to the second hub 1021, a second hub connected step S20 to combine both members; and, in a subsequent step,
A process of coupling the first hub 1011 and the second hub 1021, the following steps:
A coupling disk insertion step S301 for inserting the coupling disk 1050 between the first hub 1011 and the second hub 1021, and a slider portion restraining connection step S302 for restraining the slider portion in the notch portion. ;
A coupling step S30 comprising:
Is a method S0 of connecting two shafts by a shaft coupling assembly.
here,
When the one kind of member provided with the notch is the hub 1011, 1021 and has the notch on the disk surfaces 1091, 1092, the coupling step S <b> 30 includes the connecting means described below. (1), (2) and (3),
(1) The first hub 1011 and the second hub are notched portions that can engage the slider portions {(1032, 1033)} and {(1042, 1043)}, which are the slider portions, in the disk radial direction. 1021 slider unit holder members {(1062, 1064), (1063, 1065)}, {(1072, 1074), (1073, 1065)} that can be formed one by one with the shaft core sandwiched between them.
(2) The coupling disk 1050 is a cross-shaped coupling disk 1050 integrally including the slider portions {1032, 1033}, {1042, 1043}.
(3) The holder members {(1062, 1064), (1063, 1065)}, {(1072, 1074), (1073, 1065)} have screw fastening holes {thread through holes in the hubs 1011 and 1021 { (1116, 1118), (1117, 1119)}, {(1326, 1328), (1327, 1329)} and the coupling step S30 using the coupling assembly 1001 that constitutes the screw connection means, After the disk insertion step S301, the slider portion restraining and connecting step S302 includes the following steps (in the above, {} indicates the distinction of the hub, and the parentheses in {} indicate the opposing pair of holder members constituting the notch, the slider. Represents the opposite pair of the axis of the part, and so on)
Two pairs of the holder members (1062, 1064), (1063, 1065) are screwed to the disk surface 1091 of the hub 1011 to the first hub 1011 and the pair of holder members (1062, 1064), (1063, 1065). ) And the disk surface 1091 to form the notches 1012 and 1013 to engage the slider portions 1032 and 1033 of the cross-shaped coupling disc 1050 with the insides of the notches 1012 and 1013. Step (not shown) and two sets of the holder members (1072, 1074) and (1073, 1065) are screwed to the disk surface 1092 of the hub 1021 to the second hub 1021, and the pair of holder members (1072, 1074) ), (1073, 1065) and the disk surface 1092 Second hub engagement connection step of forming the serial notch 1022 engages the slider portion 1042,1043 of the cruciform coupling disk 1050 within the notch 1022, 1023 (not shown)
A coupling step S30 including, after the coupling assembly,
The slider portions 1032 and 1033 engaged with the first hub 1011 are first virtual yokes 1034 substantially formed by a cross-shaped coupling disk 1050, and the sliders are formed in the notches 1012 and 1013. The portions 1032 and 1033 can move in the radial direction, and misalignment of the eccentricity of the yoke 1034 can be allowed. In addition, the slider portions 1032 and 1033 can be moved in the axial direction in the notches 1012 and 1013. The misalignment of the deflection angle of the yoke 1-34 can be allowed, and the slider portions 1032 and 1033 can move in the axial direction AX within the notches 1012 and 1013. An acceptable virtual first yoke 1034 configuration; and the second hub 1021 The slider portions 1042 and 1043 to be engaged are second virtual yokes 1044 substantially formed by a cross-shaped coupling disk 1050, and the slider portions 1042 and 1043 are radial in the notches 1022 and 1023. The yoke 1044 can be moved in the direction, the misalignment of the eccentricity of the yoke 1044 can be allowed, and the sliders 1042 and 1043 can be moved in the axial direction in the notches 1022 and 1023. Virtual misalignment is allowed, and in the notches 1022 and 1023, the slider portions 1042 and 1043 can move in the axial direction AX, and end play misalignment is also allowed. Two-yoke 1044 configuration;
The virtual first yoke 1-43 and the virtual second yoke 1044 are configured to allow the misalignment of the eccentricity and the declination of both axes. This is a method S0 for connecting two shafts by a shaft coupling assembly 1001 characterized in that misalignment is acceptable and end play is also acceptable.

<Operation and effect of this method>
The method S0 for connecting two shafts by the shaft coupling assembly of the present invention is easy to couple, and the shafts can be easily connected. The present invention allows for eccentricity, declination and end play. Even if the shaft coupling assembly 1001 of the present invention is retrofitted after the shafts 1010 and 1020 are installed and the hubs 1011 and 1021 are installed, misalignment adjustment work is performed in the connection between the hubs of the shaft coupling assembly 1001. Not necessarily required.

  When connecting the shafts by the method of the present invention, it is not necessary to include misalignment adjustment work as an essential step due to the eccentricity, declination and end play allowance functions included in the present invention, and in a compact space. The effect that assembly is easy is obtained.

Using a rigid shaft coupling assembly that is easy to assemble and disassemble in a compact space while allowing high torque transmission with rigid components, it is inevitable for eccentric, declination and end play couplings A method for connecting two shafts by a shaft coupling assembly capable of absorbing all three alignment elements is provided. That is,
(1) It is possible to absorb all three misalignment elements that are inconvenient for coupling, including eccentricity, declination, and end play. (2) The coupling can be easily attached and detached even when the shafts on both sides are installed and fixed. 3) Capable of providing a coupling with a large ordinary torque

And during maintenance, the following steps:
The holder members {(1062, 1064), (1063, 1065)}, {(1072, 1074), (1073, 1065)} are removed from the hubs 1011 and 1021, and the notch forming portions 1021, 1013, 1022, and 1023 are disassembled. And releasing the restraint of the coupling disk 1050;
After the,
Step of replacing the coupling disk 1050 or the holder member {(1062, 1064), (1063, 1065)}, {(1072, 1074), (1073, 1065)} including the slider portions 1032, 1033, 1042, and 1043 Maintenance method of shaft coupling assembly S0 including
The shaft coupling assembly includes a maintenance step that allows the replacement of the cross-shaped coupling disk 1050, which is a consumable part including the slider portions 1032, 1033, 1042, and 1043, without substantially disassembling the shaft coupling assembly member. Maintenance methods can also be provided.

  The maintenance method involves disassembling only the holder members {(1062, 1064), (1063, 1065)}, {(1072, 1074), (1073, 1065)} to form groove-shaped wall surfaces such as the bottom and side surfaces of the notches. It is possible to inspect the wear and tear of the coupling disk 1050 including the slider parts 1032, 1033, 1042, and 1043 that slide and swing, and the wall surface of the notch part, and the coupling disk 1050 can be replaced. A maintenance method for an assembly in which two shafts are connected by a shaft coupling assembly that is easy to assemble and disassemble in a compact space while allowing transmission of high torque, and includes coupling of eccentricity, declination, and end play Two shafts that can absorb all three elements that are inconvenient and unavoidable for misalignment That method allows for maintenance without substantially decomposing the coupling assembly for connecting two shafts by a shaft coupling assembly for providing a substantially provide effectively a.

  Although the embodiment according to the present invention has been described above, the embodiment described here is described in considerable detail. However, the applicant does not intend to limit or limit the appended claims to such detailed description in any way. In addition, the present invention is not limited to such an embodiment, and the part of the configuration of the invention expressed in one embodiment can be adopted in other embodiments, and Various modifications can be made without departing from the spirit of the invention. The effects of the invention taken up here are not limited to appearing in one embodiment at the same time, and it is sufficient that only a part of the effects are achieved to achieve the object of the invention. It would be easy to judge. Accordingly, the invention is broadly limited to specific details, each device and method disclosed and described herein, or combinations thereof, examples, and the spirit of Applicant's general inventive concept. It is possible to deviate from these details without departing from the scope.

  INDUSTRIAL APPLICABILITY The present invention can be used for a shaft coupling assembly for connecting two shafts, and can be used for any rotary power machine such as a vehicle, a ship, a device installed in a building, a factory power device, a power generation device, etc. The present invention can be used for a general-purpose shaft coupling assembly that can be used for a coupling for connecting a plurality of shafts.

1001 Shaft coupling assembly 1002, 1004 Shaft 1010, 1020 Shaft 1011, 1021 Hub 1012, 1013, 1022, 1023 Notch 1216, 1217, 1218, 1219, 1426, 1427, 1428, 1429 Bolt 1116, 1117, 1118, 1119, 1326, 1327, 1328, 1329 Screw through holes 1032, 1033, 1042, 1043 Slider portions 1034, 1044 Virtual yoke 1050 Coupling disks 1062, 1063, 1064, 1065, 1072, 1073, 1074, 1075 Holder members 1091, 1092 Hub disk surface 2001 Shaft coupling assembly 2011, 2021 Hubs 2062, 2063, 2064, 2065, 20 2,2073,2074,2075 holder member

Claims (9)

The following parts connecting the two torque transmission shafts:
A first hub that is matable with the first shaft;
A second hub that is matable with the second shaft;
With a coupling disc;
Two sets of slider parts, one set of which can be engaged or connected to the hub and the coupling disk; and one of the two members of the hub or the coupling disk, A shaft coupling assembly in which two pairs of notch portions are provided with a pair of notches facing each other at 180 ° across the shaft core,
The remaining one kind of member not having the notch is a method of connecting the two shafts by the shaft coupling assembly with the slider part engaged with the notch.
A shaft alignment step of previously aligning the approximate shaft center and the distance between the shafts of the first shaft and the second shaft;
A first hub connecting step of inserting the first shaft into the first hub and coupling both members;
A second hub connecting step of inserting the second shaft into the second hub and coupling both members; and coupling the first hub and the second hub, comprising: Stage:
A coupling disk inserting step of inserting the coupling disk between the first hub and the second hub; and a slider portion restraining and connecting step of restraining the slider portion in the notch portion;
A coupling step comprising:
Connecting two shafts by a shaft coupling assembly. When any one of the members provided with the notch is the hub and has the notch on the disk surface, the coupling step includes connecting means (1) and (2) described below. And (3),
(1) Slider portion holder member capable of forming a pair of notches that can engage the slider portion in the radial direction of the disk, with each of the first hub and the second hub facing each other at 180 ° with the shaft core interposed therebetween. (2) The coupling disk is a cross-shaped coupling disk integrally including the slider portion. (3) The holder member has a screw fastening hole and constitutes a screw connection means together with the screw through hole of the hub. The coupling process using the coupling assembly includes the following stages as a slider portion constraining connection stage after the coupling disk insertion stage:
Two sets of the holder members are screwed to the disk surface of the hub to the first hub, the notches are formed on the pair of holder members and the disk surface, and the slider portion of the cross-shaped coupling disk is formed. A first hub engaging and connecting step for engaging in the notch, and two sets of the holder members on the second hub by screw fastening to the disc surface of the hub, and the notch at the pair of holder members and the disc surface. A coupling step including a second hub engagement connection step for forming a portion and engaging the slider portion of the cross-shaped coupling disk within the notch portion, and after the coupling assembly,
The slider portion engaged with the first hub is a first virtual yoke substantially formed by a cross-shaped coupling disk, and the slider portion is movable in the radial direction within the notch portion. The misalignment of the yoke can be allowed, and the slider can be tilted and moved in the axial direction within the notch. The misalignment of the yoke can be allowed to be misaligned, and the misalignment in the notch. The slider portion is movable in the axial direction and misalignment of the end play is allowed, and the slider portion engaged with the second hub is substantially formed by a cross-shaped coupling disk. A second virtual yoke formed on the notch, wherein the slider is movable in a radial direction within the notch, and the misalignment of the yoke is eccentric. Alignment is allowed, and the slider portion can be inclined in the axial direction so that misalignment of the deflection angle of the yoke can be allowed, and in the notch portion, the slider portion is Virtual second yoke configuration that can move in the axial direction and also allow misalignment of the end play;
The misalignment of eccentricity and declination of both axes is allowed by the virtual first yoke and the virtual second yoke, and the misalignment of decentering and declination in all directions is allowed as a whole. The method of claim 1, wherein the two shafts are coupled by a shaft coupling assembly, wherein the end play is preferably configured to be acceptable. The torque transmission structure is as follows:
A first hub that can be fitted to a first shaft having a screw fastening hole of a holder member of a slider that forms a notch portion side wall that is 180 ° opposite to each other with an axial center interposed therebetween;
A second hub that can be fitted into a second shaft having a screw fastening hole of a holder member of a slider that forms a cutout side wall that is 180 ° opposite to each other with an axial center interposed therebetween;
A cross-shaped coupling disk including the slider portion; and four sets of holder members, each of which includes two sets;
A shaft coupling assembly comprising:
Bolt fastening means in which the first hub and the holder member can be screwed onto the disk surface; and
The screw fastening holes are disposed on the disk surface so that the notches are formed in parallel along the axial radius by the set of two holder members, and one letter of the cross shape of the coupling disk is formed. The engagement means comprising the slider part and the notch part as the slider part at both ends of the portion to be formed,
A yoke can be substantially formed by the coupling disk, the holder and the first hub, and the engagement means can move the slider portion in the radial direction within the notch portion. It is an engagement means that can permit alignment, and is an engagement means that can allow a misalignment of the deflection angle of the shaft so as to be capable of tilting movement from the center of the shaft in the notch, and in the notch A first yoke configuration that is an engagement means that is axially displaceable and also capable of accepting end play misalignment; and
Bolt fastening means in which the second hub and the holder member can be screwed together on the disk surface; and
The screw fastening hole is disposed on the disk surface so that a notch is formed in parallel along the axial radius by the set of two holder members, and the one letter of the cross of the coupling disk. An engagement means comprising the slider part and the notch part as a slider part at both ends of the part that forms one character intersecting with the part forming
Another yoke can be substantially formed by the coupling disk, the holder, and the second hub, and the engaging means is arranged so that the slider portion can move in the radial direction within the notch portion. Engaging means capable of accepting misalignment of the core, engaging means capable of accepting misalignment of the declination of the shaft so as to be capable of tilting movement from the center of the shaft within the notch, and A second yoke configuration that is an engagement means that can move in the axial direction within the notch and also allow misalignment of the end play;
The two yokes are arranged perpendicularly to each other, and are configured to allow misalignment of the vertical eccentricity and the deflection angle of the shaft on each yoke surface. A shaft coupling assembly that allows for misalignment of eccentricity and declination.   The shaft coupling assembly according to claim 3, wherein the misalignment is eccentricity, declination, and end play.   4. The shaft coupling assembly according to claim 3, wherein the torque transmission structure is composed of only a rigid member.   4. The shaft coupling assembly according to claim 3, wherein a member made of a viscoelastic member is used for the slider portion.   The shaft coupling assembly of claim 3, wherein the coupling disk includes an insulator member.   The shaft coupling assembly according to claim 3, wherein the notch has a substantially rectangular cross-sectional shape. A method of maintaining a shaft coupling assembly including two shafts connected in a manner of connecting two shafts by the shaft coupling assembly of claim 2 includes the following steps:
Removing the holder member from the hub and disassembling the notch forming portion to release the coupling disk;
After the,
A shaft coupling assembly maintenance method comprising a step of replacing a coupling disk or a holder member including the slider portion without disassembling the shaft coupling assembly member of the notch.

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