WO2021182784A1

WO2021182784A1 - Power transmission apparatus

Info

Publication number: WO2021182784A1
Application number: PCT/KR2021/002541
Authority: WO
Inventors: 안근택
Original assignee: 안근택; 오세헌
Priority date: 2020-03-09
Filing date: 2021-03-02
Publication date: 2021-09-16
Also published as: KR20210113933A; KR102155988B1

Abstract

The present invention relates to a power transmission apparatus for amplifying a driving force or increasing a rate of an input end and transmitting same to an output end, characterized by comprising: a first guide path and a second guide path that are formed to be spaced apart from each other at a predetermined interval, and in which inclined sections are respectively formed; and a link member that moves along the first guide path and the second guide path and is folded, wherein when the link member is folded or unfolded, the magnitude of a force outputted from an output end of the link member or a feed rate thereof can be determined through a multi-stage acceleration/deceleration section.

Description

power train

The present invention relates to a power transmission device, and more particularly, to a power transmission device that transmits a driving force of an input stage to an output stage through a multi-stage acceleration/deceleration section.

In general, in a process of assembling parts by a manufacturing facility, movement, assembling, and coupling of the corresponding parts are performed, and in this process, high-speed transfer is required or a large force is required although low-speed.

When the division is large, two or more driving devices are designed, but in this case, the structure is designed with low cost-effectiveness. In addition, if there is a problem in the spatial condition, the required force is prioritized to be designed, which causes a loss in scale or a decrease in the transport speed.

For example, in the case of a hydraulic/pneumatic single cylinder as a device for supplying power, it is difficult to control the speed of multiple stages in one stroke, and even if the speed is reduced, the output force does not increase.

In addition, in the case of a servo motor coupled with a reducer and a ball screw, speed control in multiple stages is possible by servo control, but even in this case, the force does not increase as much as the speed lowered by the servo control. If the power is increased by increasing the reduction ratio, the speed is slowed down. Therefore, there is an inconvenience in that the capacity of the servo motor must be sufficiently large in order to obtain a sufficient speed and a desired magnitude of force.

In general, in most sections for the purpose of transport, the size of the load is small, the moving stroke is long, and a speed as fast as possible is desired. Relatively, the section where assembly and assembly are performed has a short stroke, requires precision, and often carries heavy loads.

Therefore, in the conveying section of parts, the speed is lowered in the assembly and coupling section that requires a large force, while the multi-stage machining provides precise and large force. The development of a power transmission device that is controlled by a /deceleration structure and has a simple structure and a good cost-effective design is required.

The present invention has been devised to solve the above problems, and an object of the present invention is to provide a power transmission device having a simple configuration and easy to manufacture and maintain.

In addition, an object of the present invention is to transmit power in a device for transmitting force in a straight section, by increasing the speed in the light load section and slowing the speed in the heavy load section to increase the output force relative to the input force. to provide the device.

The above-described object of the present invention, the first guide path and the second guide path formed to be spaced apart from each other at a predetermined interval, each of which slope sections are formed; and a link member that is folded while moving along the first guide path and the second guide path, wherein when the link member is folded, a force greater than a force applied to the input end of the link member is applied at the output end of the link member. It can be achieved by providing a power transmission device characterized in that it is output.

According to one aspect of the present invention, a movement path formed between the first guide path and the second guide path, a first moving block and a second moving block coupled to an input end and an output end of the link member, respectively, and moving along the moving path 2 It may further include a moving block.

According to another feature of the present invention, it may further include a first moving member and a second moving member that are respectively movably coupled along the first guide path and the second guide path.

According to another feature of the present invention, the link member includes a first link bar having one end rotatably coupled to the first moving block and the other end rotatably coupled to the first moving member, and one end of the first moving block a second link bar rotatably coupled to the moving member and having the other end rotatably coupled to the second moving member, one end rotatably coupled to the second moving member and the other end rotatably coupled to the second moving block It may include a third link bar coupled.

According to another feature of the present invention, when the first moving member enters an inclined section away from the moving path in the first guide path, the second moving member moves away from the moving path in the second guide path When entering the inclined section, the link member may be folded as the distance between the first moving block and the second moving block is narrowed.

According to another feature of the present invention, the link member includes a first elastic member having one end coupled to the first moving block and the other end coupled to the second moving member, and one end coupled to the first moving member, It may further include a second elastic member to which the other end is coupled to the second moving block.

According to another feature of the present invention, it is installed on one side of the first moving block may further include a driving device for transmitting a driving force to the first moving block.

According to the power transmission device according to the present invention, a force greater than the force input to the input end can be obtained from the output end with a simple structure.

In addition, according to the power transmission device according to the present invention, it is possible to design a manufacturing facility with good cost-effectiveness by rapidly transferring the parts in the transport section, and precisely obtaining a large force in the assembly and coupling section of the parts.

1 is a perspective view of a power transmission device according to an embodiment of the present invention;

Figure 2 is an exploded perspective view of Figure 1;

3 to 7 are diagrams of a use state of a power transmission device according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the embodiments described below are merely for explaining in detail enough that a person of ordinary skill in the art to which the present invention pertains can easily implement the invention, which limits the protection scope of the present invention. doesn't mean And in describing various embodiments of the present invention, the same reference numerals will be used for components having the same technical characteristics.

실시예Example

1 is a perspective view of a power transmission device according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of FIG. 1 .

1 and 2, the power transmission device 100 according to an embodiment of the present invention includes a link member 200 in which a plurality of link bars are hinge-coupled, and on both sides of the link member 200. It includes a pair of guide paths 300 formed respectively.

The link member 200 moves in one direction by the driving force, and at this time, the pair of guide paths 300 serves to guide the moving direction of the link member 200 .

In the pair of guide paths 300, a straight section parallel to the moving direction of the link member 200 and an inclined section inclined at a predetermined angle with respect to the moving direction are respectively formed, and the link member 200 is a guide path ( 300) can be folded in the direction of movement while moving along.

Here, the pair of guide paths 300 are a first guide path 310 formed on one side of the link member 200 and the other side of the link member 200 spaced apart from the first guide path 310 by a predetermined distance. It includes a second guide path 320 formed in.

As an example, as shown in the drawings, a first guide groove is formed in the first guide block 311 as a first guide path 310 , and as a second guide path 320 in the second guide block 321 . A second guide groove may be formed. However, this is only one embodiment of the present invention, and if the movement direction of the link member 200 can be guided, the first and

second guide paths

310 and 320 may be formed in other shapes other than the grooves. For example, the first and

second guide paths

310 and 320 may protrude in the form of guide rails.

According to an embodiment of the present invention, the first moving member 410 is movably coupled along the first guide path 310 , and the second moving member 420 moves along the second guide path 320 . possibly combined.

In the case of the embodiment shown in the drawings, the first moving member 410 rotates with a first roller 411 inserted into the first guide groove to move along the first guide groove, and one end of the first roller 411 . It includes a first hinge pin 412 operably coupled and the other end passing through the link member 200 , and a first nut member 413 rotatably coupled to the other end of the first hinge pin 412 .

In addition, the second moving member 420 includes a second roller 421 inserted into the second guide groove to move along the second guide groove, and one end is rotatably coupled to the second roller 421 and the other end is It includes a second hinge pin 422 penetrating through the link member 200 and a second nut member 423 rotatably coupled to the other end of the second hinge pin 422 .

On the other hand, the first moving block 510 is coupled to the input end of the link member 200 to which the driving force is applied, the second moving block 520 is coupled to the output end of the link member 200, the first and second movement The

blocks

510 and 520 move along a movement path 600 formed between the first and

second guide paths

310 and 320 .

Accordingly, when a driving force is applied to the first moving block 510 , the first moving block 510 moves along the moving path 600 and pushes the link member 200 , and by the first moving block 510 , The pushed link member 200 pushes the second moving block 520 while moving along the first and

second guide paths

310 and 320, and the second moving block 520 pushed by the link member 200 moves along the moving path ( 600) will follow.

As an example, as shown in the drawing, a guide rail is formed to protrude as a movement path 600 , and the first and

second movement blocks

510 and 520 may be slidably coupled to the guide rail. However, this is only an embodiment of the present invention, and if the moving directions of the first and second moving

blocks

510 and 520 can be guided, the moving path 600 may be formed in a form other than the form of the protruding guide rail. is of course For example, the movement path 600 may be formed in the form of a guide groove, and the first and

second movement blocks

510 and 520 may be slidably coupled to each other along the guide groove.

If necessary, the base plate 700 may be provided to support the guide path 300 and the movement path 600 . For example, the first and second guide blocks 321 and the guide rail described above may be formed by being coupled to the upper side of the base plate 700 .

At one side of the first moving block 510 , a driving device 800 such as an engine, a motor, and a cylinder for transmitting driving force to the first moving block 510 is installed. According to the present invention, when the driving force of the driving device 800 is transmitted to the second moving block 520 through the link member 200, the second moving block 520 increases the speed in the portion requiring speed rather than force. One side of the second moving block 520 has a press, a punch, a cutter, so that it can be increased, and the speed is reduced and the force is increased and output in the part requiring a large force so that this force can be used in necessary processes such as manufacturing and assembling. Alternatively, tools and equipment (not shown) such as a drill may be installed.

Meanwhile, in the present embodiment, the first guide groove includes a 1-1 slope section 312 and a 1-1 slope section extending obliquely from one end of the first guide block 311 to the second guide block 321 direction. A 1-2 inclination section 313 extending obliquely in the opposite direction of the second guide block 321 from the end of the 312, and the first and second moving blocks at the end of the 1-2 inclination section 313 It includes a 1-1 straight section 314 extending parallel to the moving direction of 510 and 520, and a first between the 1-1 slope section 312 and the 1-2 slope section 313 as necessary. A -2 straight section 315 may be formed.

In addition, in this embodiment, the second guide groove includes a 2-1 th straight section 322 extending from one end of the second guide block 321 and a first guide block at the end of the 2-1 th straight section 322 . (311) a 2-1 inclination section 323 extending obliquely in the direction, and a 2-2 inclination extending obliquely in the opposite direction of the first guide block 311 at the end of the 2-1 inclination section 323 It includes a section 324, and if necessary, a 2-2 straight section 325 may be formed between the 2-1 slope section 323 and the 2-2 slope section 324.

The link member 200 is folded or unfolded in the moving direction while moving along the first and

second guide paths

310 and 320. The link member 200 according to an embodiment of the present invention has one end of the first moving block. The first link bar 210 is rotatably coupled to the 510 and the other end is rotatably coupled to the first hinge pin 412 , and one end is rotatably coupled to the first hinge pin 412 and the other end is rotatably coupled to the first hinge pin 412 . The second link bar 220 is rotatably coupled to the second hinge pin 422 , and one end is rotatably coupled to the second hinge pin 422 and the other end is rotatably coupled to the second moving block 520 . and a third link bar 230 coupled thereto. Through-

holes

210a and 230a are formed at both ends of the first link bar 210 and the third link bar 230, respectively, and the bearing B is interposed in the through-

holes

210a and 230a.

In addition, between the first moving block 510 and the link member 200, and between the link member 200 and the second moving block 520, for example, an elastic member in the form of a coil spring is coupled. Specifically, one end of the first elastic member 240 is coupled to the first moving block 510 , and the other end of the first elastic member 240 is coupled to the second hinge pin 422 . In addition, one end of the second elastic member 250 is coupled to the first hinge pin 412 , and the other end of the second elastic member 250 is coupled to the second moving block 520 .

The first and second

elastic members

240 and 250 extend when the link member 200 is unfolded, and when the link member 200 is folded, it provides an elastic recovery force so that the link member 200 can be folded more easily. do. In addition, when the power transmission device 100 is vertically installed, by providing an elastic force between the first moving block 510 and the second moving block 520, the descent of the second moving block 520 by its own weight is reduced. It also serves as a preventative.

3 to 7 are state diagrams of a power transmission device according to an embodiment of the present invention, and the operation of the power transmission device according to an embodiment of the present invention will be described in detail step by step with reference to the drawings below.

3 shows an initial state of the power transmission device 100 according to an embodiment of the present invention. At this time, the first moving member 410 is located in the 1-1 slope section 312 of the first guide path 310 , and the second moving member 420 is the second-second moving member 420 of the second guide path 320 . 1 is located in the slope section 323 .

Here, when a force is applied to the first moving block 510 by the driving device 800 in one direction (left direction in the drawing), the first moving block 510 moves while pushing the link member 200, and the The link member 200 moves by pushing the second moving block 520 again. At this time, as shown in FIGS. 4 and 5 , the first and second moving

blocks

510 and 520 slide along the moving path 600 , and the first moving member 410 moves along the first guide path 310 . It moves along the 1-1 inclination section 312 , and the second moving member 420 moves along the 2-1 inclination section 323 of the second guide path 320 .

The 1-1 slope section 312 of the first guide path 310 and the 2-1 slope section 323 of the second guide path 320 are formed to be inclined in the direction of the movement path 600, respectively. As the first and second moving

members

410 and 420 approach the moving path 600 , respectively, the link member 200 is extended long. That is, while the second link bar 220 rotates clockwise with respect to the first link bar 210 about the first hinge pin 412 , the second hinge pin ( 422) while rotating in a clockwise direction to increase the angle between the first link bar 210 and the second link bar 220 and the angle between the second link bar 220 and the third link bar 230. will become Accordingly, the second moving block 520 moves at a faster speed than the moving speed of the first moving block 510 , thereby increasing the distance between the first moving block 510 and the second moving block 520 . At this time, the second moving block 520 can be said to pass through the acceleration section of the moving path 600, and can be carried out at high speed in the light load section for the purpose of transport.

6 and 7, while the first moving member 410 moves along the 1-2 inclination section 313 of the first guide path 310, the second moving member 420 is It moves along the 2-2 inclination section 324 of the second guide path 320 .

At this time, the 1-2 slope section 313 of the first guide path 310 and the 2-2 slope section 324 of the second guide path 320 are formed to be inclined in a direction away from the movement path 600 , respectively. do. Accordingly, when the first and second moving

members

410 and 420 move away from the moving path 600 , respectively, the distance between the first and second moving

blocks

510 and 520 is narrowed and the link member 200 is folded. That is, the second link bar 220 rotates counterclockwise with respect to the first link bar 210 about the first hinge pin 412 , while the second hinge pin with respect to the third link bar 230 . The angle between the first link bar 210 and the second link bar 220 and the angle between the second link bar 220 and the third link bar 230 while rotating counterclockwise around 422 are it will become smaller Accordingly, the second moving block 520 moves at a slower speed than the moving speed of the first moving block 510 so that the distance between the first moving block 510 and the second moving block 520 is narrowed, The second moving block 520 can be said to pass through a deceleration section (heavy load section) of the moving path 600 .

At this time, the second moving block 520 outputs a greater force than the driving force applied to the first moving block 510, and by this increased force, a tool or equipment such as a press, punch, cutter, or drill is operated. This makes it possible to provide a force large enough to be applied to the manufacturing and assembly process.

For example, in the acceleration section formed in the movement path 600, the tool and equipment such as a press, punch, cutter, or drill are transferred to the work position at high speed together with the second movement block 520 in the deceleration section, and the second movement is performed in the deceleration section. By applying a force greater than the driving force through the block 520, the manufacturing and assembly process can be performed.

On the other hand, while the first moving member 410 moves along the 1-2 linear section 315 of the first guide path 310 , the second moving member 420 moves the second of the second guide path 320 . 2-2 It moves along the straight section 325 . In this case, the second moving block 520 moves at the same speed as the first moving block 510 , and it can be said that it passes through a constant velocity section of the moving path 600 .

According to an embodiment of the present invention, the user appropriately selects the lengths and inclination angles of the straight sections and the inclination sections of the first and

second guide paths

310 and 320, respectively, so as to The acceleration ratio, reduction ratio, and output ratio of the moving block 520 can be adjusted. In addition, the power transmission device 100 may be designed to operate in multiple stages by appropriately dividing the acceleration section, the constant speed section, and the deceleration section as necessary according to the process to which the power transmission device 100 is applied.

Although the embodiments of the present invention have been described above, it is understood that those of ordinary skill in the art to which the present invention pertains may make various modifications without departing from the scope of the claims of the present invention.

According to the power transmission device according to the present invention, a greater force than the force input to the input terminal can be obtained from the output terminal, and accordingly, it is possible to design a manufacturing facility with good cost-effectiveness.

Claims

a first guide path and a second guide path formed to be spaced apart from each other at a predetermined distance and each having an inclined section; and

and a link member that is folded while moving along the first guide path and the second guide path;

When the link member is folded, a force greater than a force applied to the input end of the link member is output from the output end of the link member.
The method according to claim 1,

Further comprising a movement path formed between the first guide path and the second guide path, and a first moving block and a second moving block coupled to the input end and the output end of the link member, respectively, and moving along the moving path Characterized power transmission device.
3. The method according to claim 2,

The power transmission device further comprising a first moving member and a second moving member that are respectively movably coupled along the first guide path and the second guide path.
The method according to claim 3, The link member,

A first link bar having one end rotatably coupled to the first moving block and the other end rotatably coupled to the first moving member, one end rotatably coupled to the first moving member and the other end rotatably coupled to the second moving member Power transmission comprising a second link bar rotatably coupled to the member, and a third link bar having one end rotatably coupled to the second moving member and the other end rotatably coupled to the second moving block. Device.
5. The method according to claim 4,

When the first moving member enters the inclined section away from the moving path on the first guide path, the second moving member enters the inclined section away from the moving path in the second guide path, the first Power transmission device, characterized in that the link member is folded as the distance between the moving block and the second moving block is narrowed.
The method according to claim 4, The link member,

A first elastic member having one end coupled to the first moving block and the other end coupled to the second moving member, and a second elastic member having one end coupled to the first moving member and the other end coupled to the second moving block. Power transmission device, characterized in that it further comprises.
3. The method according to claim 2,

Power transmission device installed on one side of the first moving block and further comprising a driving device for transmitting a driving force to the first moving block.