KR20210062430A - education system utilizing the powertrain - Google Patents

Abstract

The present invention relates to an education system using a power transfer device which allows the following to be observed: DC motor rotation -> axis rotation -> rotating chain and timing belt -> chain rotates a V-belt and a round belt -> timing belt operates a ball screw according to an LM guide -> axis with a coupled coupling moves a rack and pinion along an axis -> anti-backlash gear and Geneva gear, rotating gears in the gearbox. Therefore, an objective of the present invention is to provide a power transfer kit capable of inspiring student's interest in mechanical elements by making the manufactured product easy for students to understand.

Description

Education system utilizing the power transmission device {education system utilizing the powertrain}

The present invention is a technology developed to help students explain and understand more easily than a book about gears, chains, belts, couplings, etc., which are power transmission devices.

More specifically, the educational power transmission system rotates the chain and timing belt while the axis rotates through the rotation of the DC motor, and the chain rotates the V belt and the round belt, and the timing belt rotates the ball screw according to the LM guide. Make it work.

On the other hand, the shaft to which the coupling is coupled operates the rack and pinion along the shaft, and rotates the anti-backlash gear, the Geneva gear, and the gears in the gearbox. The HMI informs the location of each power element via a ramp and describes each power element. In addition, it operates the HMI by distributing PLC, which is an electric element. Geneva gear, gear box bracket, gear box base, spur gear body, ball screw nut bracket, LM guide transfer table, LLM length support, fixed shaft bracket, support shaft bracket, bracket, rack fixing support, rack base, rack guide, CNC milling technology and drilling machine technology were used when machining guide brackets, rack supports, bearing housings, bevel gear bases, and bases, and CNC lathe technology was used when machining axes and shaft spaces. And when creating drawings before processing, Solidworks technology was used. And when assembling the processed products, gears, chains, belts, etc., assembly technology was used.

before The difference from what was there is that the previous educational drivetrain kits did not have an HMI, whereas our educational drivetrain kits add an HMI and lamp to make it easier to describe the drivetrain elements on the screen. And while there were no Geneva gears, anti-backlash gears, LM guides, and limit switches before, the educational power train kit invented this time contains Geneva gears that have never been before. In addition, all educational power train kits operate with the rotation of a DC motor, but this educational power train kit operates through the front and reverse rotation buttons on the HMI screen through PLC distribution.

Power transmission kits have been developed to inspire interest and awareness of mechanical elements in students learning machines.

As an example, Korean Patent and Utility Model No. 1020000022486 discloses an educational kit for showing power transmitting process. The power transmission kit disclosed in the above publication is effective in that it can inspire students to be interested and aware of various power transmission devices, but it is not possible to clearly confirm how mechanical elements such as gears, chains, belts, etc. can convert and move the power. There is a problem that effective learning does not take place.

In addition, in order to educate students about the operating principle and power transmission process of various parts such as gears, belts, pulleys, etc. that are widely used in industrial sites, textbooks and videos alone are not enough. You have to practice.

However, these methods have many problems. It takes a lot of time to tour the factory, and there is a possibility that students are injured at the factory.

In addition, the method of obtaining the device directly has a problem that it takes a long time or a cost problem because it has to be obtained one by one.

1, educational powertrain kit Application number: 1020000022486 Publication number: 1020010097959 Registration number: 10033222500000 (2002.03.28)

The present invention is to solve the problems of the prior art, and it is possible to manufacture at a reasonable price, and to provide a power transmission kit capable of inspiring interest in mechanical elements to students by making the manufactured product easy for students to understand. It has its purpose.

In addition, the present invention uses a DC motor as a power source and adopts a belt, pulley, gear, etc. as a power transmission mechanism, so that the process of transmitting the power of the motor to other power transmission devices through belts, pulleys, gears, etc. Another object is to provide a power transmission simulation kit that can learn the characteristics and concepts of machine elements.

Turn on the main power of the control box in the lower left corner, wait, and press the start button of the HMI controller.

After pressing the power button next to the controller, press the forward and reverse rotation to activate. When stopping, the controller is stopped by pressing the emergency switch on the upper right of the controller, and the controller can be used only by pressing the power button, and the controller can be used only by pressing the power button after using the emergency stop switch. It transmits power at 90˚ with a gear and transmits power to another shaft with a chain and timing belt. The chain transmits power to the V belt and the round belt, and the timing belt moves along the LM guide using a ball screw, and a limit switch is attached at the last point to prevent bumping by changing the rotation direction when the limit switch is touched. After connecting the next shaft from the shaft to the coupling, transfer it to the worm and worm gears to the rack, pinion and anti-backlash gear, and then reduce it back to the worm and worm gears, and then transfer the power to the Geneva gears and the gearbox. Can be rotated.

According to the present invention, gears, chains, belts, etc. shown in text and photos in the book can be directly operated and explanations can be seen through the power transmission kit for education, and gears not in the book such as Geneva gears and anti-backlash gears. You can also see it work directly.

V belt, chain, coupling, timing belt, rack and pinion, ball screw, Geneva gear, anti-backlash gear, worm gear, etc. are gathered in one place.

After the operation using the HMI controller, it became possible to operate through the PLC.

You can also see devices that you are new to seeing like LM Guide. Students or those who want to know about the powertrain can easily tell, and explain what each powertrain element does on the HMI screen, and each lamp connected to the PLC distribution through the HMI You can tell the location. And even if it is not rotating, you can see the description and location of the powertrain elements.

In addition, the HMI screen can be rotated in forward and reverse rotation.

<Figure 1> Plan view of an education system using a power transmission device
<Figure 2> Detailed drawing of lek and pinion
<Figure 3> Detailed drawing of spur gears
<Figure 4> Detailed drawing of bevel gear
<Figure 5> Bearing housing

-Geneva gear (9), one of the types of intermittent gears manufactured by processing aluminum using a machining center, bearing housing (not shown) to fix the bearing, LM guide unit (1), rack and pinion (6). The base (not shown) and basket (not shown) were processed, and the axis (not shown) was machined without error through a CNC lathe, and the DC motor (8) and DC operated through the control of a PLC (not shown). A bevel gear (not shown) that transmits power in a vertical direction to the motor power, a sprocket (5) that receives power through the shaft, a pulley, and a chain (5) that transmits power through another sprocket through the sprocket, and pulley. There are timing belts (4), V belts (2), and round belts (3) that transmit power through a ball screw (not shown) that transmits power to the LM guide by receiving power through the shaft, and a worm gear that is a type of reduction gear. (11), There are anti-backlash gears (13) that do not have backlash due to springs in the form of two gears combined, spur gears (12), which are the most basic gears, and Geneva gears (9), which are a kind of intermittent gears. A bevel gear box (not shown) with two bevel gears inside, a limit switch (not shown) that transmits a signal to NO or NC when pressed, a shaft that transmits the power of a DC motor to other elements, and an LM guide. LM guide unit that reciprocates along the line, disk coupling (7), a type of coupling that transmits the power of shafts with different diameters, PLC in charge of controlling this work, and controlled through PLC. There are HMIs that operate the lamps that can be explained, photographed, and location, and are controlled through the HMI and PLC, and there are lamps that indicate where each power transmission element is located.

-When the DC motor presses the power button by the program contained in the PLC, it starts to rotate forward and transmits the power to the disk coupling (7), and the power moves to the bevel gear 1 through the shaft 1 (not shown). Power is transmitted to shaft 2 (not shown) through bevel gear 2 (not shown), and shaft 2 (not shown) powers the sprocket 5, timing belt pulley 1 (not shown), and disk coupling 7. The sprocket (5) moves to the sprocket (5) through the chain and rotates the shaft 3 (not shown), and the shaft 3 (not shown) transmits power to the V-belt pulley (2) and the round belt pulley (3). do. The V-belt pulley (2) and the round belt pulley (3) are connected to the V-belt pulley (2) through the V-belt (2) and the round belt (3), respectively, and rotate the shaft 4 (not shown). It is connected to (3) and rotates the shaft 5 (not shown). The timing belt 4 connected to the timing belt pulley 4 rotates the axis 6 (not shown) through the timing belt pulley 4, and the axis 6 (not shown) rotates the ball screw to move the LM guide. The power to the coupling 7 transmits the power to the shaft 7 (not shown) through the worm gear, and the shaft 7 (not shown) rotates the pinion to move the rack, and the anti-backlash gear 13 is the anti-backlash gear 2 ( 13) by transmitting power to the shaft 8 to rotate the bevel gear 10 to rotate the bevel gear 10 engaged with the bevel gear 10, and the bevel gear 14 rotates the bevel gear (not shown). The bevel gear (not shown) rotates the shaft 11 (not shown) to rotate the bevel gear 7 (not shown) and the Zener gear camshaft (not shown). The bevel gear 6 (not shown) rotates the shaft 10 (not shown) to rotate the disk coupling 4 (not shown) to rotate the gear foil (not shown) to rotate the shaft (not shown) through the disk coupling 5 (not shown). Not shown) 6 spur gears 12 are rotated by rotating 12 times.

-If the reverse button is pressed while the power button is being rotated, or the limit switch 1 (not shown) on the left side of the LM Guide unit is pressed, the DC motor (8) stops and the main axis reverses after a certain period of time. To start the rotation. When the forward rotation button is pressed during reverse rotation or when the LM Guide (1) unit pushes the limit switch 2 (not shown) on the right, the rotation direction changes from reverse rotation to forward rotation. In addition, when the emergency switch (not shown) is pressed, the rotation is stopped, and in order to operate after that, it is only necessary to press the power button and then select forward rotation and reverse rotation to operate.

1, LM guide unit
2, V belt
3, round belt
4, timing belt
5, chain
6, lek and pinion
7, disk coupling
8, DC motor and reducer
9, Geneva gear
10, bevel gear
11, worm gear
12, spur gear
13, anti-balesic

Claims (1)

DC motor rotation -> shaft rotation -> chain and timing belt rotation -> chain rotation V belt and round belt -> timing belt actuating ball screw according to LM guide -> coupling axis The rack and pinion are operated -> Anti-backlash gear, Geneva gear, and gears in the gearbox are rotated, and the HMI informs the position of each power element through a lamp, explains each power element, and distributes the electric element PLC to HMI. It can be seen that the power trains shown in the text and photos are operating, and can be used to create a recognizable effect at a glance, as well as timing belts, racks and pinions, ball screws, Geneva gears, and anti-backlash. Various types of power devices such as gears are gathered in one place, and the precision-machined bearing housing, Geneva gear, base, and CNC lathe precision-machined using the machining center rotates forward when the power button is pressed through the PLC. The shaft connected to the bevel gear rotates, and it is connected to the motor through the bevel gear and transmits the power in the direction perpendicular to the shaft. As a result, the other shaft rotates and transmits the power to the smaller shaft through the coupling. Also, the shaft is the sprocket of the chain. , The chain and timing belt are operated by transmitting power to the pulley of the timing belt, and the chain is operated by rotating the pulley of the v-belt and the round belt. It starts reciprocating motion, and another axis connected to the timing belt rotates the bevel gear to operate the worm gear with the reduction ratio to operate the rack and pinion at a slower speed than before, and also operate the zero backlash gear, and the gears are engaged to make another worm gear. By operating the large bevel gear, the large bevel gear can transmit power, and the large bevel gear can transmit power in two directions, one of which operates six spur gears (spur gears) and the other direction is the other. It is connected to the bevel gear to operate the Geneva gear, which makes intermittent motion, and the amount of the LM guide does not fall out of one leg and pinion. A limit switch is installed at the end of the end to change the direction of rotation from forward to reverse and from reverse to forward before the rake is removed, and an emergency switch is turned on to stop the rotation of the DC motor in the event of an abnormality when the gears are engaged. It is set to stop the rotation of the DC motor when pressed. In addition, an education system using a power transmission device that allows you to see the power transmission elements rotate forward and reverse by making forward and reverse rotation buttons.

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