KR102169287B1 - Coupling shaft assembly - Google Patents

Abstract

The present invention relates to a coupler shaft assembly, and more particularly, in a coupling shaft assembly that connects an adjacent drive shaft and a power transmission shaft or two power transmission shafts, the body, and first and second respectively provided on both sides of the body. Consisting of a coupler, wherein the first coupler and the body are provided with an angle adjusting means capable of turning the first coupler from the body, so that the adjacent drive shaft and the power transmission shaft or the idle rotation prevention grooves of the two power shear shafts are shifted from each other. Even though it relates to a coupling shaft assembly capable of overcoming this error as the first coupler is pivoted and coupled.

Description

Coupling shaft assembly {COUPLING SHAFT ASSEMBLY}

The present invention relates to a coupler shaft assembly, and more particularly, in a coupling shaft assembly that connects an adjacent drive shaft and a power transmission shaft or two power transmission shafts, the body, and first and second respectively provided on both sides of the body. Consisting of a coupler, wherein the first coupler and the body are provided with an angle adjusting means capable of turning the first coupler from the body, so that the adjacent drive shaft and the power transmission shaft or the idle rotation prevention grooves of the two power shear shafts are shifted from each other. Even though it relates to a coupling shaft assembly capable of overcoming this error as the first coupler is pivoted and coupled.

In general, a height-adjustable table includes a plurality of elevating members having a driven unit underneath, and a driving unit interlocking with a bevel gear provided in the driven unit to elevate and descend the elevating member. It consists of a structure including a coupler shaft that connects the unit and the elevating members to each other, and is configured to adjust the height of the table.

As such a conventional technology, there is a registered patent No. 10-1487252 "a height adjustable table",

The prior art includes a bottom surface on which a trench is formed, a table leg formed on the bottom surface, and a table body connected to the table leg and including a body portion and a side portion, and in the first mode, the table body The table body is disposed on the table leg and in the second mode, the table body penetrates the table leg and contacts the bottom surface, and the side portion of the table body presents a height adjustable table inserted into the trench. have.

In addition, as a conventional technology, there is a registered patent No. 10-1511375 『Desk with height adjustment device of the upper plate』,

The prior art includes a support top plate, a rotating top plate divided with the supporting top plate, and a top plate including a rotating means for rotatably coupling the supporting top plate and the rotating top plate, a fixing frame supporting a lower portion of the top plate, and the fixing Frame member including a hinge bracket configured at one end of the frame and rotatably coupled to the rotating top plate, an adjustment frame configured under the fixed frame, and a support frame for adjusting the height of the adjustment frame, and height adjustment A desk with a device for adjusting the height of a top plate including a device is proposed.

However, the two conventional techniques are for adjusting the height of the upper plate of a table, etc., and when the size of the table increases, a plurality of frames must support the upper plate of the table, and when the height of the upper plate is adjusted, between each frame An error may occur and the top plate may be inclined. In particular, such a problem may cause a defect in a product in a table used in a detailed process such as a semiconductor process.

Therefore, in order to solve this problem, the present applicant proposed the registration patent No. 10-1787664 "Coupling shaft with adjustable angle",

The registration patent No. 10-1787664 is provided with a plurality of elevating members, a driven unit each provided in the elevating member and having a power transmission shaft interlocked with the elevating member, and a drive shaft to drive the power transmission shaft. A drive unit including a driving motor and a coupling shaft that connects a drive shaft of the drive unit and a power transmission shaft of the driven unit or connects two adjacent power transmission shafts to each other to transmit rotational force, wherein the coupling shaft comprises a body and A first coupler provided on both sides of the body and provided with a first connection portion having a key and a groove formed thereon and coupled to the body, and a second connection portion having a corresponding groove and a corresponding key coupled to the key and the groove are provided. Consisting of a second coupler provided on the power transmission shaft, including a coupler connecting the body and the power transmission shaft, the corresponding key positions of the second couplers respectively coupled to the adjacent two power transmission shafts are shifted from the rotation center point. Even if positioned at an angle, it is characterized in that it comprises an angle adjustment unit for turning the first coupler provided at one end of the body to a corresponding position engaged with the second coupler coupled to the power transmission shaft.

That is, the present prior art is to adjust the position of the corresponding key by forming a long hole and turning the first coupler to a corresponding position engaged with the second coupler, and the overall length can be adjusted as a long hole formed in an oblique shape is formed. There are inevitable problems, and errors may occur depending on the length during installation.

Therefore, the present invention was devised to solve the above problem,

In the coupling shaft assembly for transmitting rotational force by connecting a drive shaft and a power transmission shaft or two adjacent power transmission shafts with each other,

It consists of a body, a first and a second coupler provided on both sides of the body and each having an idling prevention groove, and an angle adjusting means provided on the first coupler and the body, even if the idling prevention grooves on both sides are misaligned, the angle An object of the present invention is to provide a coupling shaft assembly designed to transmit a rotational force by pivoting and coupling a first coupler to a body by an adjusting means.

In particular, the angle adjusting means is provided in the first coupler, a fixing groove is formed and a protruding protrusion that is introduced into the body, and a fixing bolt that penetrates from the outer surface of the body and presses the outer surface of the protruding protrusion into the fixing groove, An object of the present invention is to provide a coupling shaft assembly in which the first coupler can be rotated without limiting the degree of rotation to be coupled to the body, and the overall length is not changed even when the first coupler is rotated.

Further, the end of the fixing bolt is made of an inclined portion, and the fixing groove is formed of an inclined surface and a tangent portion, and as the central axis of the bolt hole does not meet the tangent portion, when tightening the fixing bolt, it is tangent to the central axis of the inclined portion. Another aspect is to provide a coupling shaft assembly capable of improving the adhesion between the body and the first coupler by configuring the first coupler to be pressed in the body direction so that the part can meet.

In order to achieve the above object, the coupling shaft assembly according to the present invention

In the coupling shaft assembly for transmitting rotational force by connecting a drive shaft of a drive unit and a power transmission shaft of a driven unit or by connecting two adjacent power transmission shafts to each other,

The coupling shaft assembly

Body;

A first coupler and a second coupler each provided on both sides of the body and each having a coupling portion having an idling prevention groove formed on one side thereof so that a power transmission shaft or a drive shaft to be connected is coupled;

A first coupler provided at one end of the body even if the idling prevention grooves of the first coupler and the second coupler, which are provided on the first coupler and are coupled to two adjacent power transmission shafts or the power transmission shaft and the drive shaft, respectively, are in offset positions An angle adjusting means for pivoting from the body to be coupled to the body;

Including,

The angle adjusting means

The protruding protrusion is provided in the first coupler and is introduced to one side of the body and has a fixing groove formed on an outer surface thereof, and the bolt hole provided in the body and the bolt hole are screwed into the fixing groove so that the end of the protruding protrusion is It characterized in that it comprises a fixing bolt for fixing the first coupler from the body by pressing the outer surface.

As described above, the coupling shaft assembly according to the present invention

It is for connecting the drive shaft and the power transmission shaft or the power transmission shaft adjacent to each other, and consists of a body, and first and second couplers respectively coupled to the drive shaft and the power transmission shaft or two power transmission shafts, and an error according to the gear ratio of both sides , In a situation where each axis is slightly shifted from each other due to an error caused by wear of the gear, when the first coupler is coupled to the body, an angle adjustment means is further provided so that the coupling is possible by turning, an error occurs. It also has the effect of being able to connect regardless of this.

In particular, in the prior art, the oblique long hole was formed to overcome this, but in this case, a problem of adjusting the length occurs, and the degree of turning may be limited by the length of the long hole, but the present invention provides a protruding protrusion introduced into the body. As the fixing bolt is configured in a manner that pressurizes, there is no limit on the degree of turning, and there is an effect that the length does not change even when the first coupler is rotated from the body.

Further, as the fixing groove formed in the protruding protrusion is composed of an inclined surface and a tangent portion, and the end of the fixing bolt is configured as an inclined portion having an inclined outer surface, When the operator further tightens the fixing bolt, the fixing bolt is tightened while the inclined portion descends along the inclined surface, so that the first coupler is subjected to a pressing force in the direction of the body, thereby further improving the adhesion between the two sides. There is an effect of increasing the stability of motion by allowing the axes to be fully interlocked when rotating.

1 is an exemplary view of a coupling shaft assembly according to the present invention
2 is a perspective view of a first embodiment of a coupling shaft assembly according to the present invention
3 is an exploded perspective view of a first embodiment of a coupling shaft assembly according to the present invention
4 is a perspective view of a second embodiment of a coupling shaft assembly according to the present invention
Figure 5 is a detailed implementation view of the angle adjusting means of the coupling shaft assembly according to the present invention

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The present invention will be described in detail in the text of the bar, implementation (態樣, aspect) (or embodiment) that can apply various changes and can have various forms. However, this is not intended to limit the present invention to a specific form of disclosure, and it should be understood that all changes, equivalents, and substitutes included in the spirit and scope of the present invention are included.

In each drawing, the same reference numerals, in particular the number of tens and ones, or the same number of tens, ones, and alphabet indicate members having the same or similar functions, and unless otherwise specified, each of the drawings The member indicated by the reference number can be identified as a member conforming to these criteria.

In addition, the components in each drawing are expressed by exaggeratingly large (or thick) or small (or thin) or simplified the size or thickness in consideration of the convenience of understanding, but this limits the scope of protection of the present invention. It shouldn't be.

The terms used in the present specification are only used to describe specific embodiments (sun, 態樣, aspect) (or examples), and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present application, terms such as ~include~ or ~consist~ are intended to designate the presence of features, numbers, steps, actions, components, parts, or a combination thereof described in the specification, but one or more other features It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof, does not preclude in advance the possibility of being added.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms as defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in this application. Does not.

The coupling shaft assembly (A) according to the present invention includes a body 10, a first coupler 20 and a second coupler 30, and an angle adjusting means 40, as shown in FIGS. 2 to 6 2 and 3 show a first embodiment, and Figs. 4 and 5 show a second embodiment, and the first and second embodiments are a first coupler ( As an embodiment in which the shape of 20) and the second coupler 30 are different, the angle adjusting means 40, which is the core of the present invention, is implemented in the same shape, and an embodiment of the angle adjusting means 40 is a cross-sectional view of FIG. It is shown in more detail.

Prior to the description of the present invention, Figure 1 shows an embodiment in which the coupling shaft assembly (A) according to the present invention is used, showing an example, and the drive shaft (D21) and the power transmission shaft on both sides (D13) or for connecting two power transmission shafts (D13) to each other, and may be configured in an embodiment different from that of FIG. 1, and FIG. 1 is limited to one embodiment for convenience of explanation, and the scope of the rights Should not be interpreted as limiting.

Referring to Figure 1 briefly looking at an example in which the coupling shaft according to the present invention is used, when provided under a table that can adjust the height, provided in the elevating member (H) and the elevating member (H) A coupling shaft according to the present invention is required to link the driven unit D1, the driven unit D1 and the driven unit D1 or the driven unit D1 and the driving unit D2 to each other.

First, a driven unit (D1) is provided to elevate the elevating member (H), and the driven unit (D1) is connected to a gear portion (D11) and the gear portion (D11), and a toothed gear (D131) Consisting of including a power transmission shaft (D13) is provided, when the power transmission shaft (D13) rotates by the coupling of the toothed gear (D131) and the gear (D11), the elevating member (H) elevating The descent consists of a structure.

That is, the power transmission shafts (D13) adjacent to each other by the plurality of elevating members (H) are made to be rotated equally by interlocking with each other through the coupling shaft assembly (A), in order to provide such a rotational force. , Any one or two or more power transmission shafts (D13) are provided in the drive shaft (D21) provided in the drive unit (D2) by the coupling shaft assembly (A) according to the present invention, more precisely provided in the drive unit (D2). It is configured to be connected to the drive shaft D21 of the drive motor to receive power.

Furthermore, the drive shaft (D21) and the power transmission shaft (D13) are each provided with an idling prevention protrusion, and the coupling shaft assembly (A) is interlocked to rotate as it is fitted into the idling prevention groove (221a) to be described later. And

In this case, an error that occurs when the gear and the gear are meshed, that is, the direction in which the idling prevention protrusions of the drive shaft D21 or the power transmission shaft D13 are not the same according to the slight difference in height of the plurality of elevating members H When located at, it is difficult to connect the coupling shaft connecting the respective axes, and the present invention has been improved to overcome this.

That is, the present invention is a coupling shaft assembly (A) that can be coupled without change in length even in a situation in which the respective idle rotation prevention protrusions are shifted between two adjacent power transmission shafts (D13) or drive shafts (D21) and power transmission shafts (D13). As for, each embodiment will be described in more detail with reference to FIGS. 2 to 5.

First, as a first embodiment, when described in more detail with reference to FIGS. 2 and 3,

The coupling shaft assembly (A) according to the present invention is provided on both sides of the body 10 and the body 10, and idles on one side so that the power transmission shaft (D13) or the drive shaft (D21) to be connected is coupled. The first coupler 20 and the second coupler 30 each having a coupling groove 221 having a prevention groove 221a formed thereon, and two adjacent power transmission shafts D13 provided in the first coupler 20 Alternatively, even if the idling prevention grooves 221a of the first coupler 20 and the second coupler 30 coupled to the power transmission shaft D13 and the drive shaft D21, respectively, are in a displaced position, one end of the body 10 It consists of including an angle adjustment means 40 to allow the provided first coupler 20 to be combined with the body 10 by pivoting from the body 10,

The angle adjusting means (40) is provided in the first coupler (20), the protruding protrusion (41), which is introduced into one side of the body (10) and has a fixing groove (411) formed on the outer surface, and the body (10) The first coupler 20 is screwed into the provided bolt hole 43 and the bolt hole 43 so that the end is inserted into the fixing groove 411 and presses the outer surface of the protruding protrusion 41. It characterized in that it comprises a fixing bolt (45) to be fixed from (10).

More specifically, the body 10 has a cylindrical shape, and a first coupler 20 and a second coupler 30 each having the same and similar shape are provided on both sides of the body 10.

The difference between the first coupler 20 and the second coupler 30 is the presence or absence of the angle adjustment means 40 to be described later, and the angle adjustment means 40 may be provided on both sides, but this is viewed as an inefficient configuration. In the specification, the first coupler 20 is limited to a shape in which the angle adjusting means 40 is provided to be illustrated and described.

The first coupler 20 has a structure in which a first connection coupler 21 coupled to the body 10 and a second connection coupler 22 coupled to a power transmission shaft D13 or a drive shaft D21 are interconnected. Consists of,

The second connection coupler 22 has a groove-shaped coupling groove 221 to which the power transmission shaft D13 or the drive shaft D21 is coupled, and an idle preventing groove 221a is formed on one side of the coupling groove 221. It is provided, and is configured to be rotated in conjunction with the anti-idling projection is fitted.

At this time, the second connection coupler 22 is further provided with a detachable coupling powder 223, and one side of the coupling powder 223 is configured to form a half of the coupling groove 221, so that the driving shaft D21 ) Or the power transmission shaft (D13), the coupling powder 223 is separated or loosely adjusted to increase the size of the coupling groove 221 so that coupling can be more convenient.

Before describing the angle adjusting means 40 according to the present invention, first coupler 20 and second coupler 30 of the second embodiment will be described with reference to FIGS. 3 and 4,

Even in the case of the second embodiment, the first coupler 20 and the second coupler 30 have the same shape, and only the presence or absence of the angle adjusting means 40 is different,

When described in more detail based on the first coupler 20, the first coupler 20 is coupled to the body 10, and a first connection part 211 having a key 211a and a groove 211b formed thereon A first connection coupler 21 is provided, and a second connection part 224 having a corresponding groove 224b and a corresponding key 224a formed so as to be fastened to the key 211a and the groove 211b is provided, and the power transmission The second connection coupler 22 is coupled to the shaft D13 or the drive shaft D21.

In more detail, the first connection coupler 21 includes a protruding protrusion 41 inserted into the body 10 and a first connecting coupler 22 provided opposite the protruding protrusion 41 and coupled to the second connection coupler 22. A connection part 211 is provided, and the second connection coupler 22 is provided with a second connection part 224 coupled to the first connection part 211, and a power transmission shaft D13 or a drive shaft D21 on the opposite side The fastening portion 225 to be coupled is formed. A coupling groove 221 formed in a groove shape is formed in the fastening portion 225. (In the case of the second coupler 30, the protruding protrusion 41 is not provided, so that it can be inserted into the body 10. It is preferable that a separate interpolation part is formed.)

In this case, the first connection part 211 of the first connection coupler 21 and the second connection part 224 of the second connection coupler 22 are provided with a key 211a and a groove 211b that can be misaligned with each other. ) And a corresponding key (224a) and a corresponding groove (224b) are provided respectively.

Specifically, a plurality of keys 211a and a groove 211b are formed in the first connecting portion 211, and a plurality of corresponding keys 224a and a corresponding groove 224b are formed in the second connecting portion 224, , The key (211a) and the corresponding groove (224b) is fastened to the corresponding key (224a) and the groove (211b), respectively, to engage in engagement.

Further, such a coupling method may be used as a spline coupling method, and the first connection part 211 may be configured as a spline shaft, and the second connection part 224 may be formed in a beam shape fastened to the spline shaft. Should not be interpreted as limiting.

In addition, in the key and groove provided in the first connection part 211, the corresponding key 224a provided in the second connection part 224 and the corresponding groove 224b,

The key (211a) and the corresponding key (224a) are configured to be smaller than the size of the corresponding groove (224b) and the groove (211b), respectively, to form a gap 24 between the adjacent key and the corresponding key (224a). And

A packing member 26 made of an elastic material such as rubber or silicone is provided between the first connection coupler 21 and the second connection coupler 22 so as to close the gap 24, and the packing member 26 ) A plurality of sealing protrusions 261 are formed on the outer surface, and as the sealing protrusions 261 are positioned in the gap 24, the gap 24 can be blocked.

This is because when the body 10 rotates, when the key of the first connection part 211 and the corresponding key 224a of the second connection part 224 come into close contact with each other, impact is transmitted by frictional force between each other and noise is generated. As for preventing abrasion from occurring, as the packing member 26 is made of a material such as rubber or silicone, it may reduce impact and have a sound insulation effect.

Further, as in the first embodiment, the second connection coupler 22, more precisely, the coupling powder 223 is detachably provided in the coupling portion 225 in which the coupling groove 221 is formed, so that the drive shaft D21 or the power It is configured to be more easily combined with the transmission shaft (D13).

The first coupler 20 and the body 10 of the first and second embodiments are further provided with angle adjusting means 40 of the same shape, respectively, and a drive shaft D21 and a power transmission shaft coupled to both sides ( D13), or even if the two power transmission shafts (D13) are in a misaligned state, as the first coupler 20 is pivoted and coupled to the body 10, it has a feature that can be coupled without being limited thereto.

Here, the shifted position refers to that the idling prevention grooves 221a of the first coupler 20 and the second coupler 30 are in a shifted position, and the first coupler 20 and the second coupler ( It means that the idling prevention groove (221a) of 30) is in a position that is deviated from each other when the rotation center axis is referenced as the rotation center point.

When describing the angle adjusting means 40 in more detail with reference to FIGS. 2 to 6,

The angle adjusting means (40) is provided in the first coupler (20), the protruding protrusion (41), which is introduced into one side of the body (10) and has a fixing groove (411) formed on the outer surface, and the body (10) The first coupler 20 is screwed into the provided bolt hole 43 and the bolt hole 43 so that the end is inserted into the fixing groove 411 and presses the outer surface of the protruding protrusion 41. It is made including a fixing bolt 45 to be fixed from (10).

First, the protruding protrusion 41 is provided on the first coupler 20, and more precisely, is provided in the first connection coupler 21 and has a structure capable of being inserted into the body 10.

The outer diameter of the protruding protrusion 41 is preferably formed to be the same as or slightly smaller than the inner diameter of the body 10 so as to minimize the occurrence of a gap, and the outer diameter of the first coupler 20 is the body ( As configured to be the same as the outer diameter of 10), the vicinity of the protruding protrusion 41 of the first coupler 20 forms a close contact portion 28 that is in close contact with the end of the body 10.

The protruding protrusion 41 has a cylindrical shape that can be inserted into the body 10, and the protruding protrusion 41 is provided with a fixing groove 411 along the circumference, and the fixing groove 411 is also It is located in the central portion of the protrusion 41 based on the cross-sectional view of 5, the exact position will be described in more detail below.

Furthermore, one or two or more, more preferably, a total of four bolt holes 43 are formed on the outer surface of the body 10, and a fixing bolt 45 is fastened to the bolt hole 43 so that the body 10 It is made to be able to penetrate inward.

A screw portion 431 is formed in the bolt hole 43 so that a fixing bolt 45 to be described later is screwed and penetrated.

In addition, when the first coupler 20 is coupled to the body 10, the central axis of the bolt hole 43 is deviated from the center of the fixing groove 411, that is, it does not meet the tangent portion, More precisely, the central axis of the bolt hole 43 is provided to be biased toward the body 10 than the center of the fixing groove 411 (corresponding to the tangent portion 411b to be described later).

When the fixing bolt 45 is described, the fixing bolt 45 is a headless bolt without a head, and is provided with a hexagon, a cross, and a straight groove to be tightened or loosened by a hexagon wrench or a screwdriver, and the fixing The bolt 45 is formed of a pillar portion 451 having a thread 451a formed on an outer surface thereof so as to be screwed to the screw portion 431 and an inclined portion 453 provided at an end of the pillar portion 451. .

The inclined portion 453 has an inclined cone or truncated cone shape so that the width of the outer surface gradually decreases.

Correspondingly, the fixing groove 411 has a structure in which an inclined surface 411a that is formed on both sides and decreases in width as it deepens, and a tangent portion 411b is formed at a point where the inclined surfaces 411a on both sides meet.

Here, the tangent portion 411b refers to the deepest portion of the fixing groove 411 and is formed in the center of the width of the fixing groove 411 by corresponding inclined surfaces 411a.

At this time, the central axis of the fixing bolt 45, specifically, the central axis of the inclined portion 453 is provided at a position that is deviated from the tangent portion 411b, (the first coupler 20 is the body 10 ) Is based on the coupled state.) More precisely, this shifted position is configured such that the central axis of the inclined portion 453 is formed toward the body 10 more than the tangent portion 411b.

As described above, this configuration may be made by the formation position of the bolt hole 43 and the formation position of the fixing groove 411.

Referring to FIG. 6, as described above, the reason why the fixing bolt 45 and the fixing groove 411 are provided at positions that are shifted from each other will be described,

First, after mounting the first coupler 20 to the body 10, when the fixing bolt 45 is tightened, the body 10 among the inclined surfaces 411a of the fixing groove 411 as shown in Fig. 6[A] The inclined surface 453a of the fixing bolt 45 is in close contact with the inclined surface 411a in the direction.

At this time, when the operator further tightens the fixing bolt 45, the inclined surface 453a gradually descends along the inclined surface 411a, and accordingly, the first coupler 20 is further moved to the inside of the body 10. By being subjected to a pressing force so as to be inserted, there is an effect of further improving the adhesion between the first coupler 20 and the body 10.

The configuration as described above is to secure a higher adhesion force similar to the forced fitting, and even if the first coupler 20 and the body 10 are made of a hard material rather than an elastic material, Due to the gap, the first coupler 20 may be more closely attached to the body 10, and as a result, the contact portion 28 of the first coupler 20 Further pressurized to the end can secure adhesion, and simply pressurized with a bolt by the frictional force between the contacting portion 28 and the end of the body 10 and the frictional force between the inclined surface 411a and the inclined portion 453 Compared to the above structure, the frictional force is high, so it can be operated more reliably in conjunction with each other, thereby enhancing the operation stability.

In addition, in describing the present invention above, a coupling shaft assembly having a specific shape, structure, and configuration has been mainly described with reference to the accompanying drawings, but the present invention is capable of various modifications, changes, and substitutions by those skilled in the art, and such modifications, Changes and substitutions should be construed as belonging to the scope of the present invention.

H: elevating member D1: driven unit
D11: gear unit D13: power transmission shaft
D131: toothed gear D2: drive unit
D21: drive shaft
A: coupling shaft assembly
10: body 20: first coupler
21: first connection coupler 211: first connection
211a: key 211b: home
22: second connection coupler 221: coupling groove
221a: idling prevention groove 223: combined powder
224: second connection part 224a: corresponding key
224b: corresponding groove 225: fastening part
24: gap 26: packing member
261: sealing protrusion 28: close contact
30: second coupler 40: angle adjustment means
41: protruding protrusion 411: fixing groove
411a: inclined surface 411b: tangent
43: bolt hole 431: threaded portion
45: fixing bolt 451: column
451a: thread 453: slope

Claims (4)

In the coupling shaft assembly for transmitting rotational force by connecting the drive shaft D21 of the drive unit D2 and the power transmission shaft D13 of the driven unit D1, or by connecting two adjacent power transmission shafts D13 to each other. ,
The coupling shaft assembly (A) is
Body 10;
The first body 10 is provided on both sides of the body 10, each having a coupling groove 221 having an idling prevention groove 221a formed on one side so that the power transmission shaft D13 or the drive shaft D21 to be connected is coupled. A coupler 20 and a second coupler 30;
Idle rotation of the first coupler 20 and the second coupler 30 provided in the first coupler 20 and coupled to two adjacent power transmission shafts D13 or the power transmission shaft D13 and the drive shaft D21, respectively Even if the prevention grooves (221a) are in a misaligned position, the first coupler (20) provided at one end of the body (10) is pivoted from the body (10) to allow the angle adjustment means (40) to be coupled to the body (10). );
Including,
The angle adjusting means 40 is
Protruding protrusions 41 provided on the first coupler 20 and having a fixing groove 411 on the outer surface of the body 10, and four bolt holes 43 provided on the body 10 ) And each of the bolt holes 43 is screwed to the end of the fixing groove 411 by pressing the outer surface of the protruding protrusion 41, the first coupler 20 from the body 10 It is made including a fixing bolt 45 to fix,
The fixing bolt 45 is
Includes a pillar portion 451 having a thread 451a formed on the outer surface and an inclined portion 453 provided at an end of the pillar portion 451,
The fixing groove 411 is
Consisting of an inclined surface 411a formed on both sides so as to correspond to the inclined portion 453 and decreasing in width as it deepens, and a tangent portion 411b where the inclined surfaces 411a on both sides meet each other
The central axis of the bolt hole 43 does not meet the tangent portion 411b, and is made to be biased toward the body 10,
When the fixing bolt 45 is tightened, the inclined portion 453 of the fixing bolt 45 so that the central axis of the inclined portion 453 of the fixing bolt 45 meets the tangent portion 411b of the fixing groove 411. A coupling shaft assembly, characterized in that while lowering along the inclined surface (411a) of the fixing groove (411) presses the first coupler (20) coupled to the body (10) in the body direction. The method of claim 1,
The first coupler 20 is
A first connection coupler 21 coupled to the body 10 and provided with a first connection part 211 having a key 211a and a groove 211b, and fastened to the key 211a and the groove 211b A second connection part 224 having a corresponding groove 224b and a corresponding key 224a formed thereon is provided, and the second connection coupler 22 is coupled to the power transmission shaft D13 or the drive shaft d21. Coupling shaft assembly. The method of claim 2,
The second connection coupler 22 is further provided with a detachable coupling powder 223, and one side of the coupling powder 223 is configured to form half of the coupling groove 221,
When the drive shaft (D21) or the power transmission shaft (D13) is coupled, the size of the coupling groove (221) is increased by adjusting the coupling degree of the coupling powder (223) to the second coupling coupler (22). (D21) or the coupling shaft assembly, characterized in that to facilitate the entry of the power transmission shaft (D13). The method according to claim 2 or 3,
The angle adjusting means (40) is a coupling shaft assembly, characterized in that further provided on the body (10) and the second coupler (30).

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