Orthogonal axis power transmission device

Abstract

A quadrature axis power transmitting device is provided. A quadrature axis power transmission device according to an embodiment of the present invention comprises: a main structure assembly forming an external structure and having a space portion formed therein, the space portion being sealed; the input shaft assembly is connected to one side of the main structure assembly and inputs rotation power of the motor; the output shaft assembly is connected to the other side, intersecting with the input shaft assembly, of the main structure assembly, and the rotation power of the motor is output from the output shaft assembly; and a link assembly for changing a power transmission direction, arranged to operate in the spatial portion of the main structural assembly to prevent propagation of noise or vibration, and connected to the input shaft assembly and the output shaft assembly within the main structural assembly by a connection method, and changing the power transmission direction from the input shaft assembly to the output shaft assembly.

Description

Technical Field

[0001] The present invention relates to an orthogonal axis power transmission device, and more particularly, to an orthogonal axis power transmission device that can change the power transmission direction to the orthogonal axis while reducing noise and vibration and having a compact structure. Compared with the related art, the structure significantly reduces the manufacturing cost and can also be manufactured in a size suitable for the intended use, thereby being widely used in various industrial machines. Background Art

[0002] Power transmission devices can be mainly divided into rack and pinion gears that change rotational motion into linear motion or vice versa, and gear trains that change rotation speed and torque while transmitting only rotational motion. Power transmission devices are widely used in various industrial machines, including semiconductor devices, flat panel display devices such as LCD, PDP or OLED, etc.

[0003] Meanwhile, for power transmission devices that have been applied or are to be applied to various industrial machinery, the power transmission direction is generally linear, that is, along a straight axis. The linear axis power transmission device adopts a method in which the reducer is directly connected to the motor, so although the installation height is large, the device has the advantage of being very simple in structure. Therefore, the linear axis power transmission device is widely used.

[0004] However, sometimes due to small installation space or interference with surrounding structures or equipment, it is necessary to change the power transmission direction to an orthogonal axis instead of the existing straight axis. Therefore, when the power transmission direction needs to adopt an orthogonal axis, bevel gears are usually used.

[0005] However, bevel gears are gears that directly mesh and rub against each other at a 45-degree angle, so the noise and vibration caused by frictional motion are necessarily serious. In order to reduce such noise and vibration, expensive, precision-made bevel gears need to be used, so there is a problem that manufacturing costs inevitably increase.

[0006] Furthermore, there are some limitations when using bevel gears to change the direction of power transmission to orthogonal axes, given that it is practically impossible to manufacture large bevel gears beyond a certain size. Summary of the invention

[0007] Technical issues

[0008] The purpose of the present invention is to provide an orthogonal axis power transmission device that can change the power transmission direction to an orthogonal axis while reducing noise and vibration, and also has a compact structure that significantly reduces the manufacturing cost compared to conventional axes. Moreover, it can be manufactured in a size suitable for the required use, and can be widely used in various industrial machinery.

[0009] The beneficial effects of disclosure

[0010] According to the present invention, the power transmission direction can be changed to an orthogonal axis, and noise and vibration are reduced, and due to the compact structure, the manufacturing cost can be significantly reduced compared with the prior art. In addition, the manufacturing cost can be reduced. The size suitable for the required use can be achieved, so that it can be widely used in various industrial machinery. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a perspective view of an orthogonal axis power transmission device according to an embodiment of the present invention.

[0012] Figure 2 yes Figure 1 Side view of .

[0013] Figure 3 yes Figure 1 A partially cutaway stereogram of .

[0014] Figure 4 yes Figure 2 A cross-sectional view of .

[0015] Figure 5 It is a partially cutaway stereoscopic view of a main structural component.

[0016] Figure 6 It is a partially exploded perspective view of a main structural component.

[0017] Figure 7 It is a partially cutaway perspective view of an input shaft assembly.

[0018] Figure 8 It is a partially exploded perspective view of an input shaft assembly.

[0019] Fig. 9 It is a partially cutaway stereoscopic view of an output shaft assembly.

[0020] Fig.10 It is a partially exploded perspective view of an output shaft assembly.

[0021] Fig.11 It is a three-dimensional diagram of a connecting rod assembly used to change the direction of power transmission.

[0022] Fig.12 It is an exploded perspective view of the connecting rod assembly used to change a power transmission direction.

[0023] Fig.13 It is an enlarged stereoscopic view of a main connecting rod component.

[0024] FIG. 14A to FIG. 14F It is a view depicting a state in which the connecting rod assembly is rotated at each angle for changing a power transmission direction.

[0025] Fig.15 It is a perspective view of a connecting rod assembly applied to an orthogonal axis power transmission device according to another embodiment of the inventive concept for changing a power transmission direction. DETAILED DESCRIPTION

[0026] Best Mode

[0027] According to one aspect of the present invention, an orthogonal axis power transmission device includes: a main structural component, which forms an external structure and has a space portion formed therein, and the space portion is sealed; an input shaft assembly, which is connected to one side of the main structural component and inputs the rotational power of a motor; an output shaft assembly, which is connected to the other side of the main structural component where it intersects with the input shaft assembly, and outputs the rotational power of the motor from the output shaft assembly; and a connecting rod assembly for changing a power transmission direction, which is configured to operate in the space portion of the main structural component to prevent the spread of noise or vibration, is connected to the input shaft assembly and the output shaft assembly in the main structural component by a connection method, and changes the power transmission direction from the input shaft assembly to the output shaft assembly.

[0028] The connecting rod assembly is used to change a power transmission direction and can change the power transmission direction input from the input shaft assembly by 90 degrees, and transmit the output to the output shaft assembly one-to-one. The connecting rod assembly is used to change a power transmission direction and may include: a main connecting rod member; an input shaft connecting rod member, one side of which is connected to the input shaft assembly, and the other side is connected to one side of the main connecting rod member so as to be able to rotate relative to each other; and an output shaft connecting rod member, one side of which is connected to the output shaft assembly, and the other side is connected to the other side of the main connecting rod member so as to rotate relative to each other.

[0029] The connecting rod assembly for changing a power transmission direction may also include: an input shaft connecting portion, connecting the main connecting rod member and the input shaft connecting rod member so as to be rotatable relative to each other; and an output shaft connecting portion, connecting the main connecting rod member and the output shaft connecting rod member so as to be rotatable relative to each other.

[0030] The input shaft connecting part may include: an input shaft secondary connecting rod, one side of which is connected to the input shaft connecting rod component and the other side of which is connected to the main connecting rod component; a first input shaft bearing, which is arranged in a connecting area between the input shaft secondary connecting rod and the first input shaft bearing; an input shaft power transmission pin, which is integrally connected to the input shaft connecting rod component, the input shaft secondary connecting rod and the first input shaft bearing, and transmits power from one side of the input shaft connecting rod to the power input shaft secondary connecting rod component, and a second input shaft bearing, which is arranged in a connecting area between the input shaft secondary connecting rod and the main connecting rod component.

[0031] The input shaft connecting portion may further include a plurality of input shaft retaining rings for fixing a position of the input shaft secondary connecting rod or the input shaft power transmission pin.

[0032] The output shaft connection portion may include: an output shaft secondary connecting rod, one side of which is connected to the output shaft connecting rod member and the other side of which is connected to the main connecting rod member; a first output shaft bearing, which is arranged in a connection area between the output shaft secondary connecting rod and the first output shaft bearing; an output shaft power transmission pin, which is integrally connected to the output shaft connecting rod member, the output shaft secondary connecting rod and the first output shaft bearing, and transmits power from one side of the output shaft connecting rod member to the output shaft secondary connecting rod; and a second output shaft bearing, which is arranged in a connection area between the output shaft secondary connecting rod and the main connecting rod member.

[0033] The output shaft connecting portion may further include a plurality of output shaft retaining rings for fixing a position of the output shaft secondary connecting rod or the output shaft power transmission pin.

[0034] The input shaft connecting portion and the output shaft connecting portion have a same structure.

[0035] The main connecting rod member may include a disc-type connecting rod body manufactured in a disc shape, wherein the first and second connecting rod connecting parts are respectively formed on both sides in opposite directions, and the input shaft connecting rod member and the output shaft connecting rod member are respectively connected to the first connecting rod connecting part and the second connecting rod connecting part; at least one weight reducer is formed through a central area of ​​the disc-type connecting rod body and reduces the weight of the disc-type connecting rod body; and at least one moment of inertia balancer is arranged in the side areas of the input shaft connecting rod member and the output shaft connecting rod member adjacent to the disc-type connecting rod body to balance the moment of inertia of the disc-type connecting rod body during rotational movement.

[0036] The main link member is an S-shaped link member, and the input shaft link member and the output shaft link member are provided as Y-shaped link members having the same shape as a Y-shape.

[0037] The input shaft connecting rod member is splined to the input shaft assembly by the input shaft spline, and the output shaft connecting rod member is splined to the output shaft assembly by the output shaft spline.

[0038] The main structural component may include a structural body, the space portion may be formed inside the structural body, and an input shaft assembly connecting portion may be formed on one side of the structural body, which is used to be connected to the input shaft assembly; a structural cover, on which an output shaft assembly connecting portion is arranged, which is used to be connected to the output shaft assembly, and the structural cover is connected to the structural body; and a plurality of structural cover fastening members, which detachably fasten the structural cover and the structural body.

[0039] The main structural component may include: a structural cover O-ring, which is arranged between the structural cover and the structural body and hermetically seals the structural cover and the structural body; a structural cover positioning pin, which is arranged between the structural cover and the structural body and is used to align the position of the structural cover relative to the structural body; a front cover, which covers a front opening on one side of the structural body; a plurality of front cover fastening members, which detachably fasten the front cover to the structural body; and a front cover O-ring, which is arranged between the front cover and the structural body and hermetically seals the front cover and the structural body.

[0040] The input shaft assembly may include an input shaft structure connected to one side of the main structural assembly; a plurality of input shaft fixing bolts for fixing the input shaft structure to the main structural assembly; an input shaft adapter rotated by the motor, one side of which is connected to the connecting rod assembly for changing a power transmission direction and inputting the rotational power of the motor into the connecting rod assembly for changing a power transmission direction, an input shaft adapter bearing, which is arranged on the input shaft structure and supports a rotational movement of the input shaft adapter, and an input shaft adapter bearing preload plate, which forms a preload on the input shaft adapter bearing.

[0041] The input shaft assembly may include a motor mounting plate on which the motor is mounted; a clamp to fasten a motor shaft of the motor to the input shaft adapter; and a clamp fastening bolt to fasten the clamp.

[0042] The output shaft assembly may include an output shaft structure connected to the other side of the main structure assembly; a plurality of output shaft fixing bolts fixing the output shaft structure to the main structure assembly; an output shaft adapter connected to the other side of the connecting rod assembly for changing a power transmission direction and outputting power transmitted from the connecting rod assembly for changing a power transmission direction; an output shaft adapter bearing disposed in the output shaft structure and supporting a rotational movement of the output shaft adapter; and an output shaft adapter bearing preload plate forming a preload on the output shaft adapter bearing.

[0043] Public method

[0044] Reference is made to the accompanying drawings for illustrating preferred embodiments of the present inventive concept in order to gain a full understanding of the present inventive concept, its advantages, and objectives achieved by implementing the present inventive concept.

[0045] Hereinafter, the inventive concept will be described in detail by explaining preferred embodiments of the inventive concept with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components.

[0046] Figure 1is a perspective view of an orthogonal axis power transmission device according to an embodiment of the inventive concept. Figure 2 yes Figure 1 Side view of . Figure 3 yes Figure 1 A partially cutaway stereogram of . Figure 4 yes Figure 2 A cross-sectional view of . Figure 5 It is a partial cutaway stereoscopic view of a main structure assembly. Figure 6 It is a partially exploded stereogram of the main structural component. Figure 7 It is a partially cutaway perspective view of an input shaft assembly. Figure 8 It is a partially exploded perspective view of the input shaft assembly. Fig. 9 It is a partially cutaway stereoscopic view of an output shaft assembly. Fig.10 It is a partially exploded stereoscopic view of the output shaft assembly. Fig.11 It is a three-dimensional diagram of a connecting rod assembly used to change the direction of power transmission. Fig.12 It is an exploded perspective view of the connecting rod assembly used to change a power transmission direction. Fig.13 It is an enlarged stereoscopic view of a main connecting rod component. FIG. 14A to FIG. 14F It is a view depicting a state in which the connecting rod assembly is rotated at each angle for changing a power transmission direction.

[0047] Referring to the accompanying drawings, an orthogonal axis power transmission device 100 according to an embodiment of the present invention can change a power transmission direction to an orthogonal axis, such as Figure 2 As shown, while reducing noise and vibration, it also has a compact structure, significantly reduces manufacturing costs compared to the prior art, and can be manufactured in a size suitable for the intended use, so it is widely used in various industrial machinery.

[0048] An orthogonal axis power transmission device 100 according to an embodiment of the present inventive concept that can provide the above-mentioned effects may include a main structural assembly 110 forming an external structure, and having a structure of an input shaft assembly 130, an output shaft assembly 150 and a connecting rod assembly 170 for changing a power transmission direction connected to the main structural assembly 110 at each position.

[0049] The main structural component 110 has Figures 1 to 6 The box structure forming an outer structure is shown. The main structure assembly 110 has a sealed space portion 112 therein so that a connecting rod assembly 170 can be provided for changing a power transmission direction.

[0050] Since the connecting rod assembly 170 is used to change a power transmission direction and is disposed in the space portion 112 sealed in the main structure assembly 110, the connecting rod assembly 170 is used to change a power transmission direction such as FIG. 14A to FIG. 14FWhen the power transmission direction is changed to an orthogonal axis, Figure 2 As shown, noise and vibration can be significantly reduced compared to the prior art.

[0051] The main structural assembly 110 may include a structural body 111 and a structural cover 114 that can be disassembled and assembled to each other.

[0052] The structural body 111 has a box-shaped structure in which a space portion 112 is formed, and an input shaft assembly connecting portion 113 is formed on one side of the space portion 112, and the input shaft assembly 130 is connected to the input shaft assembly connecting portion 113. The input shaft assembly connecting portion 113 has a hole shape, and the input shaft assembly 130 is sealingly connected to the input shaft assembly connecting portion 113.

[0053] An opening 125 having a shape similar to the input shaft assembly connecting portion 113 having a hole shape is formed on a front side of the structural body 111 , and a front cover 121 is provided to shield the opening 125 on the front side of the structural body 111 .

[0054] The front cover 121 is fastened to a corresponding position by a front cover fastening member 122. In other words, the front cover fastening member 122 detachably fastens the front cover 121 to the structural body 111. When the front cover 121 is fastened, the front cover 121 is fastened to a corresponding position. By the front cover fastening member 122, the opening 125 on the front side of the structural body 111 can be shielded.

[0055] In this state, a front cover O-ring 123 is used between the front cover 121 and the structural body 111 to maintain the seal between the front cover 121 and the structural body 111. Therefore, leakage of the internal lubricant through the opening 125 in the front side of the structural body 111 can be prevented.

[0056] The structural cover 114 is a structure detachably connected to the structural body 111. A plurality of structural cover fastening members 116 are used for attachment and detachment of the structural cover 114. The structural cover fastening member 116 is a means for detachably fastening the structural cover 114 and the structural body 111. Thus, since the structural cover 114 is detachable, the connecting rod assembly 170 for changing a power transmission direction can be installed in the space portion 112 in the structural body 111, and can also be lubricated and can be maintained and repaired.

[0057] An output shaft assembly connecting portion 115 is provided on the structural cover 114, which is connected to the output shaft assembly 150. Different from the input shaft assembly connecting portion 113, the output shaft assembly connecting portion 115 has a protruding structure.

[0058] A structural cover O-ring 117 is disposed between the structural cover 114 and the structural body 111. The structural cover O-ring 117 is disposed between the structural cover 114 and the structural body 111, and the structural cover 114 and the structural body 111 are hermetically sealed. The structural cover O-ring 117 can prevent internal lubricant between the structural cover 114 and the structural body 111 from leaking.

[0059] A structural cover locating pin 118 is also provided between the structural cover 114 and the structural body 111. The structural cover locating pin 118 aligns the position of the structural cover 114 relative to the structural body 111. Therefore, disassembly and assembly, especially assembly of the structural cover 114 becomes easy.

[0060] like Figures 1 to 4 as well as Figure 7 and Figure 8 As shown, the input shaft assembly 130 is a portion connected to one side of the main structure assembly 110, and inputs the rotational power of a motor (not shown).

[0061] The input shaft assembly 130 may include an input shaft structure 131 connected to one side of the main structure assembly 110 , and structures and members described below are positionally connected through the input shaft structure 131 .

[0062] The plurality of input shaft fixing bolts 132 are used to fix the input shaft structure 131 . In other words, the input shaft fixing bolts 132 are means for fixing the input shaft structure 131 to the main structural assembly 110 .

[0063] An input shaft adapter 133 is provided in the input shaft structure 131. The input shaft adapter 133 is rotated by the motor, and one side thereof is connected to an input shaft connecting rod member 172 of the connecting rod assembly 170 for changing a power transmission direction, and inputs the power of the motor to the input shaft connecting rod member 172. The input shaft connecting rod member 172 is key-connected to the input shaft adapter 133 of the input shaft assembly 130 through an input shaft key 173. Therefore, the input shaft assembly 130 is prevented from rotating.

[0064] A clamp 137 is provided to fasten a motor shaft of the motor to the input shaft adapter 133. The clamp 137 may be fastened by a clamp fastening bolt 138.

[0065] An input shaft adapter bearing 134 is disposed around the input shaft adapter 133. The input shaft adapter bearing 134 is disposed in the input shaft structure 131 and supports a rotational movement of the input shaft adapter 133. In other words, the input shaft adapter 134 is disposed around the input shaft adapter 133. The shaft adapter bearing 134 facilitates the rotational movement of the input shaft adapter 133.

[0066] An input shaft adapter bearing preload plate 135 is used to install the input shaft adapter bearing 134. The input shaft adapter bearing preload plate 135 is a device for forming a preload on the input shaft adapter bearing 134. In other words, the input shaft adapter bearing preload plate 135 improves the bearing rotation accuracy by adjusting the clearance of the input shaft adapter bearing 134, and also adjusts the assembly distance of the connecting rod assembly 170 for changing a power transmission direction.

[0067] A motor mounting plate 136 is installed around the input shaft structure 131. The motor mounting plate 136 is a part for mounting a motor (not shown). The motor mounting plate 136 is fixed in place by a motor mounting plate fixing bolt 141.

[0068] An input shaft oil seal 142 is disposed in the input shaft assembly 130. The input shaft oil seal 142 may prevent internal lubricant from leaking through the input shaft assembly 130.

[0069] like Figures 1 to 4 as well as Fig. 9 and Fig.10 As shown, the output shaft assembly 150 is a part connected to the other side of the main structure assembly 110 intersecting with the input shaft assembly 130, and outputs the rotational power of the motor through it. Except for the mounting structure of the motor, the output shaft assembly 150 has a structure similar to the input shaft assembly 130.

[0070] The output shaft assembly 150 may further include an output shaft structure 151 connected to the other side of the main structure assembly 110 , and the structures and components described below are positionally connected through the output shaft structure 151 .

[0071] The plurality of output shaft fixing bolts 152 are used to fix the output shaft structure 151. In other words, the output shaft fixing bolts 152 are means for fixing the output shaft structure 151 to the main structure assembly 110.

[0072] An output shaft adapter 153 is provided in the output shaft structure 151. The output shaft adapter 153 is a device connected to the other side of the connecting rod assembly 170 for changing a power transmission direction. That is, the connecting assembly 170 is used to change an output shaft connecting rod member 174 of the power transmission direction and output the power transmitted from the connecting assembly 170 for changing a power transmission direction. Rotational power can be provided by the connecting device via the output shaft adapter 153.

[0073] The output shaft connecting rod member 174 may be keyed to the output shaft adapter 153 of the output shaft assembly 150 via an output shaft key 175. Thus, the output shaft connecting rod member 174 is prevented from rotating.

[0074] An output shaft adapter bearing 154 is provided in the output shaft structure 151 for supporting the rotational movement of the output shaft adapter 153. An output shaft adapter bearing preload plate 155 is installed to be connected to the output shaft adapter bearing 154 for forming a preload on the output shaft adapter bearing 154. The output shaft adapter bearing preload plate 155 also provides the same function as the above-mentioned input shaft adapter bearing preload plate 135. In other words, the output shaft adapter bearing preload plate 155 increases the bearing rotation accuracy by adjusting the clearance of the output shaft adapter bearing 154, and also adjusts an assembly distance of the connecting rod assembly 170 for changing a power transmission direction.

[0075] At the same time, if Figures 1 to 4 as well as Fig.11 and 12 As shown, the connecting rod assembly 170 is used to change a power transmission direction and is disposed in the space portion 112 of the main structural assembly 110 to prevent the spread of noise or vibration, such as Figures 14A to 14F For example, the input shaft assembly 130 and the output shaft assembly 150 are connected to the main structure assembly 110 by a connection method, and the power transmission direction from the input shaft assembly 130 to the output shaft assembly 150 is changed.

[0076] Specifically, the connecting rod assembly 170 applied to the present embodiment is used to change a power transmission direction from the input shaft assembly 130 by 90 degrees, and output an output to the output shaft assembly 150 in a one-to-one correspondence.

[0077] A connecting rod structure provides less noise and vibration as the bevel gear according to the prior art. In addition, the connecting rod assembly 170 used in the present embodiment is provided in the sealed space portion 112 of the main structure assembly 110 and operates to prevent noise and vibration from being transmitted to the outside. In addition, the structure of the connecting rod assembly 170 using the connecting rod structure for changing a power transmission direction is simple, which can reduce the manufacturing cost, and in addition, the connecting rod assembly 170 for changing a power transmission direction is different from the bevel gear, and it can be manufactured in a desired size.

[0078] The connecting rod assembly 170 for changing a power transmission direction may include a main connecting rod member 171 and an input shaft connecting rod member 172, one side of the input shaft connecting rod member 172 is connected to the input shaft assembly 130, and the other side is connected to one side of the main connecting rod member. The main connecting rod member 171 can rotate relative to each other, and one side of the output shaft connecting rod member 174 is connected to the output shaft assembly 150, and the other side is connected to the other side of the main connecting rod member 171, and can rotate relative to each other.

[0079] The main link member 171 serves as a link of a central portion of the link assembly 170 for changing a power transmission direction, forming a position where the input shaft link member 172 and the output shaft link member 174 are connected to opposite end regions.

[0080] In this embodiment, the main connecting rod member 171 may include a disc-shaped disc-type connecting rod body 171a, at least one weight reducer 171b, which is formed through the central area of ​​the disc-type connecting rod body 171a to reduce the weight of the weight reducer 171b, and at least one moment of inertia balancer 171c is arranged in the side area of ​​the disc-type connecting rod body 171a adjacent to the input shaft connecting rod member 172 and the output shaft connecting rod member 174 to balance the moment of inertia of the disc-type connecting rod body 171a during rotational movement.

[0081] The disc type connecting rod body 171a has a circular shape except for the portion contacting the input shaft connecting rod member 172 and the output shaft connecting rod member 174. The disc type connecting rod body 171a serves as a flywheel to achieve a smooth rotation with the input shaft connecting rod member 172 and the output shaft connecting rod member 174.

[0082] The input shaft connecting rod member 172 and the output shaft connecting rod member 174 are connected to the first connecting rod connecting portion 171d and the second connecting rod connecting portion 171e, respectively, and are formed on both sides of the disc-shaped connecting rod body 171a. The first connecting rod connecting portion 171d and the second connecting rod connecting portion 171e are provided in a protruding shape and are provided on both sides of the disc-shaped connecting rod body 171a in opposite directions.

[0083] The weight reducer 171b is formed in the central area of ​​the disc link body 171a to reduce the weight of the disc link body 171a. In the housing according to the present embodiment, the weight reducer 171b is formed in a circular through-hole shape.

[0084] The inertia moment balancer 171c is disposed at the side region of the disc-type connecting rod body 171a, and balances the inertia moment of the disc-type connecting rod body 171a during rotational motion. In the present embodiment, the inertia moment balancer 171c is evenly disposed at the side regions adjacent to the input shaft connecting rod member 172 and the output shaft connecting rod member 174 on both sides of the disc-type connecting rod body 171a. The inertia moment balancer 171c may also be in the form of a hole.

[0085] The input shaft link member 172 and the output shaft link member 174 connected to opposite end regions of the main link member 171 are provided in the same shape as a Y-type link member in a Y shape.

[0086] The input shaft link member 172 as a Y-shaped link member has one side connected to the input shaft assembly 130 and the other side connected to the main link member 171 so as to be rotatable relative to each other. In addition, the output shaft link member 174 as a Y-shaped link member has one side connected to the output shaft assembly 150 and the other side connected to the main link member 171 so as to be rotatable relative to each other.

[0087] In addition, the connecting rod assembly 170 for changing a power transmission direction may also include an input shaft connecting portion 180 and an output shaft connecting portion 190 as a device for connecting the input shaft connecting rod member 172 and the output shaft connecting rod member 174 to the opposite end regions of the main connecting rod member 171 so as to be able to rotate relative to each other. In this embodiment, since the input shaft connecting portion 180 and the output shaft connecting portion 190 have the same structure, assembly and maintenance become convenient. However, the input shaft connecting portion 180 and the output shaft connecting portion 190 do not have to have the same structure, and therefore, the scope of the rights of the present invention is not limited thereto.

[0088] First, the input shaft connecting portion 180 is a device for connecting the main connecting rod member 171 and the input shaft connecting rod member 172 to be rotatable relative to each other, and includes various members and units.

[0089] The input shaft connecting portion 180 may include an input shaft sub-rod 181 having one side connected to the input shaft connecting rod member 172 and the other side connected to the main connecting rod member 171, a first input shaft bearing 182, which is arranged in a connecting area between the input shaft sub-rod 181 and the input shaft connecting rod member 172, an input shaft power transmission pin 183, which is integrally connected to the input shaft connecting rod member 172, the input shaft sub-rod 181 and the first input shaft bearing 182, and transmits power from one side of the input shaft connecting rod member 172 to the input shaft sub-rod 181, and a second input shaft bearing 184, whose input shaft sub-rod 181 and the first input shaft bearing 182 are arranged in a connecting area between the input shaft sub-rod 181 and the main connecting rod member 171.

[0090] One end of the input shaft sub-link 181 is inserted into an opening portion of the input shaft link member 172 as a Y-type link member, and the other end thereof is connected to a hole or opening formed in one end of the main link member 171 as an S-type link member. Since the input shaft sub-link 181 is connected between the input shaft link member 172 and the main link member 171, which can rotate relative to each other, the first input shaft bearing 182 and the second input shaft bearing 184 are installed in both ends of the input shaft sub-link 181 to smoothly rotate them. Specifically, in the case of the first input shaft bearing 182, since one end of the input shaft sub-link 181 is inserted into the opening portion of the input shaft link member 172, the input shaft power transmission pin 183 is also used for the first input shaft bearing 182.

[0091] A plurality of input shaft stop rings 185 are also used in the input shaft connection portion 180. The input shaft stop rings 185 are used to fix the position of the input shaft sub-connecting rod 181 or the input shaft power transmission pin 183. The input shaft stop rings 185 are E-shaped rings.

[0092] Next, the output shaft connecting portion 190 is a device for connecting the main link member 171 and the output shaft connecting member 174 to be rotatable relative to each other. The output shaft connecting portion 190 includes various members and units.

[0093] Except for its position, the output shaft connecting portion 190 has substantially the same structure, function and effect as the input shaft connecting portion 180. In other words, the output shaft connecting portion 190 may include: an output shaft sub-connecting rod 191, one side of which is connected to the output shaft connecting rod member 174 and the other side of which is connected to the main connecting rod member 171, a first output shaft bearing 192, which is provided in a connection area between the output shaft sub-connecting rod 191 and the output shaft connecting rod member 174, an output shaft power transmission pin 193, which is integrally connected to the output shaft connecting rod member 174, the output shaft sub-connecting rod 191 and the first output shaft bearing 192, and transmits power from one side of the output shaft connecting rod member 174 to the output shaft sub-connecting rod 191, and a second output shaft bearing 194, which is provided in a connection area between the output shaft sub-connecting rod 191 and the main connecting rod member 171.

[0094] A plurality of output shaft stop rings 195, such as E-rings, are also used in the output shaft connection portion 190. The output shaft stop rings 195 are provided to fix the position of the output shaft sub-connecting rod 191 or the output shaft power transmission pin 193.

[0095] Hereinafter, the operation of the orthogonal axis power transmission device 100 according to an embodiment of the present inventive concept is described.

[0096] As described above, when the motor, not shown, is mounted on the input shaft assembly 130 and driven, the rotational power of the motor is input through the input shaft assembly 130, and then, while being rotated 90 degrees by the connecting rod assembly 170 for changing a power transmission direction to change a power transmission direction, the rotational power can be transmitted one-to-one through the output shaft assembly 150. In other words, the power of the motor is output to the output shaft assembly 150 one-to-one, and only its direction is changed.

[0097] In this state, the connecting rod assembly 170 is used to change the power transmission direction to rotate a certain angle, such as Figures 14A to 14F In other words, the connecting rod assembly 170 is used to change the state of rotating the power transmission direction by 0, 60, 120, 180, 240 and 300 degrees, as shown in FIG. Figures 14A to 14F shown.

[0098] According to the present embodiment operated using the above structure, the orthogonal axis power transmission device can change the power transmission direction to the orthogonal axis while reducing noise and vibration, and also has a compact structure, significantly reducing the manufacturing cost compared to the conventional axis. And, it can be manufactured in a size suitable for the purpose, and can be widely used in various industrial machinery.

[0099] Fig.15 1 is a perspective view of a connecting rod assembly applied to an orthogonal axis power transmission device according to another embodiment of the present invention for changing a power transmission direction.

[0100] Referring to the accompanying drawings, a connecting rod assembly 270 used in the present embodiment for changing a power transmission direction may also include a main connecting rod member 271, an input shaft connecting rod member 172 having one side connected to the input shaft assembly 130, and the other side connected to one side of the main connecting rod member 271 so as to be able to rotate relative to each other, and an output shaft connecting rod member 174 having one side connected to the output shaft assembly 150, and the other side connected to the other side of the main connecting rod member 271 so as to be able to rotate relative to each other.

[0101] The structure, function and effect of the input shaft connecting rod member 172 and the output shaft connecting rod member 174 are the same as those of the above-mentioned embodiment. Therefore, redundant description thereof will be omitted.

[0102] Meanwhile, the main connecting rod member 271 applied to the present embodiment is used as a connecting rod in the central portion of the connecting rod assembly 270 for changing a power transmission direction, forming a position where the input shaft connecting rod member 172 and the output shaft connecting rod member 174 are connected to their opposite end regions. In the present embodiment, the main connecting rod member 271 is configured as an S-shaped S-type connecting rod member. Even when the main connecting rod member 271 is an S-type connecting rod member, the effects of the present invention can be provided.

[0103] Although the inventive concept has been particularly shown and described with reference to its preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made without departing from the spirit and scope of the inventive concept as defined by the appended claims. Therefore, the scope of the inventive concept is defined not by the detailed description of the inventive concept, but by the appended claims, and all differences within the scope will be construed as included in the inventive concept.

[0104] The inventive concept relates to various machine tools, industrial mechanical devices, semiconductor or flat panel display manufacturing equipment, various logistics conveying equipment, etc. that require rotational motion or linear motion.

Claims

1. An orthogonal axis power transmission device, characterized in that: include: a main structural component forming an outer structure and having a space portion formed therein, the space portion being sealed; an input shaft assembly connected to one side of the main structural assembly and inputting a rotational power of a motor; an output shaft assembly connected to the other side of the main structural assembly intersecting with the input shaft assembly, and outputting the rotational power of the motor from the output shaft assembly; and A connecting rod assembly is used to change a power transmission direction, is configured to operate in the space portion of the main structural assembly to prevent the spread of noise or vibration, is connected to the input shaft assembly and the output shaft assembly within the main structural assembly by a connecting method, and changes the power transmission direction from the input shaft assembly to the output shaft assembly.

2. The orthogonal axis power transmission device according to claim 1, characterized in that: The connecting rod assembly is used to change a power transmission direction, change the power transmission direction input from the input shaft assembly by 90 degrees, and transmit an output to the output shaft assembly in a one-to-one correspondence. The connecting rod assembly is used to change a power transmission direction, and includes: a main connecting rod member; an input shaft connecting rod member having one side connected to the input shaft assembly and the other side connected to one side of the main connecting rod member so as to be rotatable relative to each other; and An output shaft connecting rod member has one side connected to the output shaft assembly and the other side connected to the other side of the main connecting rod member so as to be rotatable relative to each other.

3. The orthogonal axis power transmission device according to claim 2, characterized in that: The connecting rod assembly is used to change a power transmission direction, and also includes: an input shaft connecting portion connecting the main connecting rod member and the input shaft connecting rod member so as to be rotatable relative to each other; and An output shaft connecting portion connects the main connecting rod member and the output shaft connecting rod member so as to be rotatable relative to each other.

4. The orthogonal axis power transmission device according to claim 3, characterized in that: The input shaft connecting part comprises: an input shaft secondary connecting rod, one side of which is connected to the input shaft connecting rod member and the other side of which is connected to the main connecting rod member; a first input shaft bearing disposed in a connection area between the input shaft secondary connecting rod and the input shaft connecting rod member; an input shaft power transmission pin integrally connected to the input shaft connecting rod member, the input shaft sub-connecting rod and the first input shaft bearing, and transmitting power from one side of the input shaft connecting rod member to the input shaft sub-connecting rod; and A second input shaft bearing is disposed at a connection area between the input shaft secondary connecting rod and the main connecting rod member.

5. The orthogonal axis power transmission device according to claim 4, characterized in that: The input shaft connecting part further comprises: A plurality of input shaft retaining rings are used to fix a position of the input shaft secondary connecting rod or the input shaft power transmission pin.

6. The orthogonal axis power transmission device according to claim 3, characterized in that: The output shaft connecting part includes: an output shaft secondary connecting rod, one side of which is connected to the output shaft connecting rod member and the other side of which is connected to the main connecting rod member; a first output shaft bearing disposed in a connection area between the output shaft secondary connecting rod and the output shaft connecting rod member; an output shaft power transmission pin integrally connected to the output shaft connecting rod member, the output shaft sub-connecting rod and the first output shaft bearing, and transmitting power from a side of the output shaft connecting rod member to the output shaft sub-connecting rod; and A second output shaft bearing is disposed in a connection area between the output shaft secondary connecting rod and the main connecting rod member.

7. The orthogonal axis power transmission device according to claim 6, characterized in that: The output shaft connecting part further includes: A plurality of output shaft retaining rings are used to fix a position of the output shaft secondary connecting rod or the output shaft power transmission pin.

8. The orthogonal axis power transmission device according to claim 3, characterized in that: The input shaft connecting portion and the output shaft connecting portion have a same structure.

9. The orthogonal axis power transmission device according to claim 2, characterized in that: The main connecting rod component comprises: a disc-type connecting rod body manufactured in a disc shape, wherein first and second connecting rod connecting portions are respectively formed on both sides in opposite directions, and the input shaft connecting rod member and the output shaft connecting rod member are respectively connected to the first connecting rod connecting portion and the second connecting rod connecting portion; at least one weight reducer formed through a central region of the disc link body and reducing the weight of the disc link body; and At least one moment of inertia balancer is disposed adjacent to the side regions of the input shaft connecting rod member and the output shaft connecting rod member of the disc type connecting rod body to balance a moment of inertia during rotational movement of the disc type connecting rod body.

10. The orthogonal axis power transmission device according to claim 2, characterized in that: The main connecting rod member is an S-shaped S-type connecting rod member, and the input shaft connecting rod member and the output shaft connecting rod member are provided as a Y-shaped Y-type connecting rod member having the same shape.

11. The orthogonal axis power transmission device according to claim 2, characterized in that: The input shaft connecting rod member is splined to the input shaft assembly via an input shaft key, and the output shaft connecting rod member is splined to the output shaft assembly via an output shaft key.

12. The orthogonal axis power transmission device according to claim 1, characterized in that: The main structural components include: a structure having the space portion formed therein and an input shaft assembly connecting portion formed on one side of the structure for connecting to the input shaft assembly; a structural cover on which an output shaft assembly connecting portion is disposed for connecting to the output shaft assembly, the structural cover being connected to the structural body; and A plurality of structure cover fastening components are used to detachably fasten the structure cover and the structure body.

13. The orthogonal axis power transmission device according to claim 12, characterized in that: The main structural components include: A structural cover O-ring, disposed between the structural cover and the structural body, and the structural cover and the structural body are hermetically sealed; a structural cover positioning pin, disposed between the structural cover and the structural body, for aligning the position of the structural cover relative to the structural body; A front cover, covering a front opening on one side of the structure; a plurality of front cover fastening members for detachably fastening the front cover to the structure; and A front cover O-ring is arranged between the front cover and the structure, and the front cover and the structure are hermetically sealed.

14. The orthogonal axis power transmission device according to claim 1, characterized in that: The input shaft assembly comprises: an input shaft structure connected to one side of the main structural assembly; a plurality of input shaft fixing bolts for fixing the input shaft structure to the main structural assembly; an input shaft adapter, which is rotated by the motor, one side of which is connected to the connecting rod assembly for changing a power transmission direction, and inputs the rotational power of the motor into the connecting rod assembly for changing a power transmission direction; an input shaft adapter bearing disposed on the input shaft structure and supporting a rotational movement of the input shaft adapter; and An input shaft adapter bearing preload plate forms a preload on the input shaft adapter bearing.

15. The orthogonal axis power transmission device according to claim 14, characterized in that: The input shaft assembly comprises: a motor mounting plate on which the motor is mounted; a clamp to secure a motor shaft of the motor to the input shaft adapter; and A clamp fastening bolt fastens the clamp.

16. The orthogonal axis power transmission device according to claim 1, characterized in that: The output shaft assembly comprises: an output shaft structure connected to the other side of the main structural component; a plurality of output shaft fixing bolts, fixing the output shaft structure to the main structure assembly; an output shaft adapter connected to the other side of the connecting rod assembly for changing a power transmission direction and outputting the power transmitted from the connecting rod assembly for changing a power transmission direction; an output shaft adapter bearing disposed in the output shaft structure and supporting a rotational movement of the output shaft adapter; and An output shaft adapter bearing preload plate forms a preload on the output shaft adapter bearing.

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