KR20160124288A - Dual warm slow type drive apparatus - Google Patents

Dual warm slow type drive apparatus Download PDF

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Publication number
KR20160124288A
KR20160124288A KR1020150053804A KR20150053804A KR20160124288A KR 20160124288 A KR20160124288 A KR 20160124288A KR 1020150053804 A KR1020150053804 A KR 1020150053804A KR 20150053804 A KR20150053804 A KR 20150053804A KR 20160124288 A KR20160124288 A KR 20160124288A
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KR
South Korea
Prior art keywords
worm
gear
worm wheel
worm gear
unit
Prior art date
Application number
KR1020150053804A
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Korean (ko)
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KR101786902B1 (en
Inventor
강문식
송금석
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(주) 파루
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Priority to KR1020150053804A priority Critical patent/KR101786902B1/en
Publication of KR20160124288A publication Critical patent/KR20160124288A/en
Application granted granted Critical
Publication of KR101786902B1 publication Critical patent/KR101786902B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/26—Generation or transmission of movements for final actuating mechanisms
    • F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H61/32—Electric motors actuators or related electrical control means therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/02—Gearings for conveying rotary motion by endless flexible members with belts; with V-belts
    • F16H2001/28—
    • F16H2007/02—
    • F16H2055/02—
    • F16H2061/32—

Abstract

Disclosed is a dual worm slow type drive apparatus. According to the present invention, the dual worm slow type drive apparatus comprises: one worm wheel; first and second worm gears coupled at a distance with respect to the one worm wheel to rotate the one worm wheel; one drive motor which rotates the one worm wheel by transmitting power to the first and the second worm gears to simultaneously rotate the first and the second worm gears; and first and second power transmission parts which connect the one drive motor with each of the first and the second worm gears. According to the present invention, since dual-type worm gears are coupled in a location opposing each other with respect to the one worm wheel, rotation stability of the worm wheel is improved and the worm wheel is efficiently rotated with a comparatively small driving force.

Description

DUAL WARM SLOW TYPE DRIVE APPARATUS [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dual-worm slow-drive device, and more particularly, to a dual-worm slow-drive device capable of stably rotating a worm wheel by coupling a dual-type worm gear to a single worm wheel, To a dual-worm slow-drive device capable of stably rotating the worm wheel even at a low rotational force.

2. Description of the Related Art Generally, a rotating device that rotates a rotating part of a rotating machine of an industrial machine, a multi-axis rotating part of a solar tracker or the like and periodically changes its rotating direction is coupled.

This conventional rotating device includes a worm wheel coupled to the rotating portion, a worm gear coupled to one side of the worm wheel, and a driving motor for rotating the worm gear. In addition, conventionally, a first worm gear, which provides a clockwise rotation to one worm wheel, and a second worm gear, which provides counterclockwise rotation, are coupled in a direct manner.

 That is, in the conventional rotating device, since the first and second worm gears are coupled only to one side of the worm wheel, there is a disadvantage that rotation of the worm wheel becomes unstable when the worm wheel rotates due to rotation of the worm gear. In other words, since the worm gear comes into contact with only one side of the worm wheel, there is a problem that rotation of the worm wheel becomes unstable due to irregular transmission of the contact force due to asymmetry of the contact portion.

In addition, in the related art, there is a problem that the probability of occurrence of errors in the rotational speed when the worm wheel rotates left and right is increased, and the worm wheel is severely shut down due to the power shortage due to electrical errors.

Korean Registered Patent No. 10-0961983 (registered on May 31, 2010)

Therefore, it is an object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to solve the above problems by providing a worm wheel that can stably rotate a worm wheel by coupling a worm gear of a dual type opposite to the worm wheel, And to provide a dual worm slow drive device capable of stably rotating the worm wheel even with a rotational force.

It is another object of the present invention to provide a dual worm slow drive device which is simple in structure that is combined with a worm gear and rotated at the same time so that the direction of rotation of the worm wheel can be changed periodically and easily.

According to an aspect of the present invention, there is provided a worm wheel including a worm wheel, first and second worm gears that are spaced apart from each other to rotate the worm wheel, One driving motor for transmitting the power to the first and second worm gears to rotate the worm wheel so as to simultaneously drive the worm gears, and a driving motor for driving the one driving motor and the first and second worm gears And the first and second worm gears rotate in the same direction, respectively, by driving the one driving motor, and the first worm gear and the second worm gear rotate in the same direction do.

According to the dual worm slow drive apparatus of the present invention described above, since the dual type worm gear is coupled to the worm wheel at positions opposite to each other, the rotation stability of the worm wheel can be improved, The worm wheel can be rotated efficiently.

Further, the rotating unit and the power unit are detachably coupled to each other, so that the power unit can be separated from the rotating unit and then appropriately recombined with the rotating part of another rotating device.

Further, by providing the worm wheel rotation regulating portion so as to adjust the worm wheel rotation direction, the rotational direction of the worm wheel can be more easily adjusted.

Further, since the worm wheel rotation control unit is configured to set the worm wheel rotation direction rotation period using the rotational force of any one of the worm gears, the worm wheel rotation control unit can be applied with a simple structure without additional structure, thereby providing a compact structure of the entire apparatus .

1 is a perspective view illustrating a dual-worm slow drive apparatus according to an embodiment of the present invention.
Figure 2 is a cross-sectional view of Figure 1;
3 is a view showing a state in which a rotating unit and a power unit of a dual-warm slow drive apparatus according to an embodiment of the present invention are separated from each other.
4 is a perspective view of FIG.
5 is an exploded perspective view of Fig.
6 is a perspective view illustrating a power unit of a dual-warm slow drive apparatus according to an embodiment of the present invention.
7 to 9 are views showing driving states of the worm wheel rotation adjusting unit of the dual worm slow drive apparatus according to the embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It will be apparent to those skilled in the art that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, It is provided to let you know. Wherein like reference numerals refer to like elements throughout.

A dual-warm slow drive device (hereinafter referred to as a drive device) according to a preferred embodiment of the present invention rotates the rotation part connected to the rotation part of the industrial machine, the multi-axis rotation part of the solar tracker, etc., Specifically, one worm wheel is configured to rotate in the same direction as the pair of worm gears, so that the worm wheel can be stably rotated as compared with the conventional one, .

FIG. 1 is a perspective view of a dual-warm slow drive apparatus according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of FIG. 1, and FIG. 3 is a cross- FIG. 5 is an exploded perspective view of FIG. 3, and FIG. 6 is a perspective view showing a power unit of the dual-warm slow drive apparatus according to the embodiment of the present invention. FIG. And FIGS. 7 to 9 are views showing driving states of the worm wheel rotation control unit of the dual-warm slow drive apparatus according to the embodiment of the present invention.

Hereinafter, the present invention will be described with reference to various embodiments.

As shown in Figs. 1 and 2, a drive device according to an embodiment of the present invention rotates the worm wheel at a speed smaller than a predetermined speed by using a pair of worm gears, and is connected to a rotating portion (not shown) A worm wheel 100 for rotating the worm wheel 100 and a worm wheel 100 for rotating the worm wheel 100. The first and second worm gears 100, One worm wheel 100 is rotated by transmitting power to the first worm gear 110 and the second worm gear 120 so as to simultaneously drive the first worm gear 110 and the second worm gear 110, And first and second power transmission parts 200 and 300 for connecting the first and second worm gears 110 and 120, respectively, to one drive motor 130 and the first and second worm gears 110 and 120, respectively. In the present invention, the first and second worm gears 110 and 120 are driven by one driving motor 130 to rotate one worm wheel 100 in the same direction. Here, the first and second worm gears 110 and 120 are provided at positions opposite to each other with respect to one worm wheel 100 to rotate the worm wheel 100 in the same direction. As described above, in the present invention, the first and second worm gears 110 and 120 are provided at positions opposite to each other with respect to one worm wheel 100, so that when the worm wheel 100 is rotated by the conventional worm gear The worm wheel 100 can be stably rotated as compared with the case in which the worm wheel 100 is rotated.

First, one worm wheel 100 is connected to a rotation unit (not shown) to rotate the rotation unit. Here, the rotating part is applicable to a rotating part of an industrial machine, a multi-axis rotating part of a solar tracker, and the like.

Next, the first and second worm gears 110 and 120 are spaced apart from each other with respect to one worm wheel 100 so as to rotate the worm wheel 100, specifically, at positions facing each other. Accordingly, the worm wheel 100 can be stably rotated compared to the case where the worm wheel 100 is rotated by the conventional single worm gear.

The driving force of one driving motor 130 is transmitted to the first worm gear 110 through the first power transmitting unit 200, Similarly, the rotational force of one driving motor 130 is transmitted to the second worm gear 120 through the second power transmitting portion 300, so that the rotation of the first worm gear 110 and the second worm gear 120 The worm wheel 100 is rotated.

Here, it is preferable that one drive motor 130 is configured to be capable of rotating in the forward and reverse directions so as to adjust the rotational direction of the worm wheel 100, specifically, the forward and reverse rotations of the worm wheel 100, as described later.

2 to 6, one worm wheel 100 and first and second worm gears 110 and 120 are provided in the first casing 410 to form a rotation unit 420 One drive motor 130 and the first and second power transmission units 200 and 300 are provided in the second casing 510 to form the power unit 520. [ Here, the rotation unit 420 and the power unit 520 are detachably coupled to each other. Accordingly, the rotating unit 420 can be properly installed and used in various rotating parts such as a rotating part of an industrial machine, a rotating part of a solar tracker, and other rotating parts, and the operator can separate the rotating part 420 if necessary and re- Here, the power transmission structure of the rotating unit 420 and the power unit 520 will be described later.

2 and 6, the first power transmission unit 200 includes a first spur gear 210 connected to a driving shaft of one driving motor 130, a first spur gear 210 And a first pulley 230 provided on a rotating shaft of the first worm gear 110 and coupled to the first timing belt 220. The first timing belt 220 is connected to the first timing belt 220, .

Here, the first spur gear 210 is rotatably supported by a separate bearing, and the rotational force of one driving motor 130 is transmitted to the first spur gear 210, the first timing belt 220, the first pulley 230 To the first worm gear 110 sequentially. The rotational force of the first spur gear 210 is transmitted to the first worm gear 110 through the first timing belt 220 and the first pulley 230 so that a more uniform rotational force can be transmitted.

The second power transmission unit 300 includes a second spur gear 310 rotatably coupled with the first spur gear 210 and a second spur gear 310 rotating between the second spur gear 310 and the second worm gear 120 And a second pulley 330 coupled to the second timing belt 320. The second timing belt 320 is coupled to the rotation shaft of the second worm gear 120 and is coupled to the second timing belt 320.

Here, the second spur gear 310 is rotatably supported by a separate bearing, and the rotational force of the one driving motor 130 is transmitted to the first spur gear 210, the second spur gear 310, the second timing belt 320, and the second pulley 330 sequentially to the second worm gear 120. The rotational force of the second spur gear 310 is transmitted to the second worm gear 120 through the second timing belt 320 and the second pulley 330 so that a more uniform rotational force can be transmitted.

In the above description, the first and second power transmitting portions 200 and 300 are each formed of the coupling structure of the spur gear, the timing belt, and the pulley, but the present invention is not limited thereto. For example, the first and second power transmission units 200 and 300 may be configured with other structures such as a sprocket wheel and a chain, a rack, and a pinion unit, respectively.

In the present invention, one worm wheel 100 is rotated by the first and second worm gears 110 and 120 of the dual type, wherein the first and second worm gears 110 and 120 rotate in opposite directions to each other As a result, it becomes possible to rotate the worm wheel 100 in the same direction. Here, if the rotational directions of the first and second worm gears 110 and 120 are reversed, the rotational direction of the worm wheel 100 is also reversed.

2, the first power transmitting portion 200 further includes a first planetary gear 240 connecting the first timing belt 220 and the first worm gear 110 . The second power transmission unit 300 may further include a second planetary gear 340 that connects the second timing belt 320 and the second worm gear 120.

The first planetary gear 240 and the second planetary gear 340 include a sun gear, a plurality of planet gears, a ring gear, and a carrier, respectively. The first timing belt 220 and the second timing belt 320 to the side of the first worm gear 110 and the second worm gear 120 by increasing the torque transmitted through the first and second worm gears 320, 320 to approximately several tens to several hundreds of times.

Therefore, even when one drive motor 130 is used in a small capacity, the present invention can be applied to a worm wheel 100 (e.g., a worm wheel 100) through a dual type worm gear arrangement and a torque increase structure of the first and second planetary gears 240, Can be rotated with a more stable and sufficient rotational force.

The worm wheel 100 rotates in the direction in which the first worm gear 110 and the second worm gear 120 are opposed to each other with respect to one worm wheel 100, The first worm gear 110 and the second worm gear 120 are in contact with both sides of the worm wheel 100 so that the worm wheel 100 can be rotated more stably .

The first worm gear 110 and the second worm gear 100 may be disposed at positions opposite to each other with respect to the worm wheel 100 even if the worm wheel 100 is coupled with the rotating part having a considerably high weight and the left- And the second worm gear 120 are combined with each other, the stability corresponding to the unbalanced stress can be improved.

The first planetary gear unit 240 and the first worm gear unit 110 are connected to each other by a key (key) , And the second planetary gear 340 and the second worm gear 120 can be connected through a key (not shown).

More specifically, the operator removes the bolt coupling structure to separate the rotating unit 420 and the power unit 520 from each other. As shown in Fig. 4, (Not shown) are inserted into the key engagement grooves 121 of the first worm gear 110 and the second worm gear 120, respectively, and then these keys are inserted into the first planetary gears 240 and the second planetary gears 340 The rotational force of the first planetary gear 240 and the second planetary gear 340 can be transmitted to the first worm gear 110 and the second worm gear 120. [

On the other hand, the worm wheel 100 rotates by the rotation of the first worm gear 110 and the second worm gear 120, and the rotational direction of the worm wheel 100 can be periodically changed.

For example, when the worm wheel 100 rotates the rotating part of the solar tracker, the worm wheel 100 rotates about 270 degrees in the clockwise direction and then 270 degrees in the counterclockwise direction, A request to be periodically adjusted occurs.

To this end, as shown in FIGS. 1, 2, and 7 to 9, the present invention includes a first worm gear 110 and a second worm gear 120, And a worm wheel rotation control unit 600 capable of adjusting the rotation direction of the worm wheel 100. [

More specifically, the worm wheel rotation regulating unit 600 is connected to the first worm gear 110 or the second worm gear 120 to rotate simultaneously with the first worm gear 110 or the second worm gear 120 A rotating block 620 coupled to the rotating rod 610 so as to be movable along the longitudinal direction of the rotating rod 610 when the rotating rod 610 rotates; A first limit switch 630 provided to be in contact with the rotary block 620 and a second limit switch 640 provided to be in contact with the rotary block 620 when the rotary block 620 moves to the other side, 630 and the second limit switch 640 to transmit a driving signal to one driving motor 130 so as to adjust the rotational direction of the rotating shaft of one driving motor 130 .

Here, the rotation shaft 610 is provided with threads on its outer surface, and both ends are rotatably supported by bearings. The rotation block 620 is coupled to the outer surface of the rotation block 620 through a thread and when the rotation block 620 rotates in one direction (clockwise direction), the rotation block 620 rotates one end side of the rotation rod 610 And the rotation block 620 moves toward the other end of the rotation bar 610 when the rotation bar 610 rotates in the other direction (counterclockwise direction).

The rotating wing 610 is connected to the first worm gear 110. However, the rotating worm 610 may be connected to the second worm gear 120 for convenience of explanation.

8, when the first worm gear 110 rotates clockwise or counterclockwise more than a predetermined distance, the rotating block 620 moves along the rotating rod 610, The control unit receives a contact signal of the first limit switch 630 and transmits a control signal to the driving motor 130 so that the driving motor 130 rotates in the direction Rotate in the opposite direction.

9, the first worm gear 110 rotates in a direction opposite to the above-described rotation direction by a predetermined amount or more and the rotation block 620 moves along the rotation bar 610 to rotate the second limit switch 640 The control unit receives a contact signal of the second limit switch 640 and transmits a control signal to the drive motor 130 to rotate the drive motor 130 in a direction opposite to the direction in which the drive motor 130 rotates . The rotation direction of the driving motor 130 can be changed periodically through the contact relationship between the rotation block 620 and the first limit switch 630 and the second limit switch 640.

In the present invention, the worm wheel rotation control unit 600 is configured to set the worm wheel rotation direction rotation period using the rotational force of any of the worm gears 110, so that the worm wheel rotation control unit 600 has a simple structure without any additional structure, Can be made possible.

Although the present invention has been described with reference to the accompanying drawings and the preferred embodiments described above, the present invention is not limited thereto but is limited by the following claims. Accordingly, those skilled in the art will appreciate that various modifications and changes may be made thereto without departing from the spirit of the following claims.

100: worm wheel 110: first worm gear
120: second worm gear 130: drive motor
200: first power transmitting portion 210: first spur gear
220: first timing belt 230: first pulley
240: first planetary gear 410: first casing
420: rotating unit 510: second casing
520: Power unit 600: Worm wheel rotation control part
610: rotating rod 620: rotating block
630: first limit switch 640: second limit switch

Claims (8)

One worm wheel;
First and second worm gears that are spaced apart from each other to rotate the one worm wheel;
One driving motor for transmitting the power to the first and second worm gears to rotate the one worm wheel so as to simultaneously drive the first and second worm gears; And
And first and second power transmission parts for connecting the one drive motor and the first and second worm gears, respectively,
And the first and second worm gears rotate the one worm wheel in the same direction by driving the one driving motor. The method according to claim 1,
The first worm wheel, the first worm gear, and the second worm gear are provided on a first casing to form a rotation unit, and the one drive motor, the first and second power transmission parts are provided on a second casing to form a power unit However,
Wherein the rotating unit and the power unit are detachably coupled to each other. The method according to claim 1,
Wherein the first power transmission portion includes a first spur gear connected to a drive shaft of the one drive motor and a first timing belt connecting between the first spur gear and the first worm gear,
Wherein the second power transmission portion includes a second spur gear which rotates in a tooth-like engagement with the first spur gear, and a second timing belt that connects the second spur gear and the second worm gear Dual Worm Slow Drive Unit. The method of claim 3,
The first power transmission portion further includes a first planetary gear that connects the first timing belt and the first worm gear,
Wherein the second power transmission unit further comprises a second planetary gear that connects between the second timing belt and the second worm gear. 5. The method of claim 4,
The first worm wheel, the first worm gear, and the second worm gear are provided on a first casing to form a rotation unit, and the one drive motor, the first and second power transmission parts are provided on a second casing to form a power unit And the rotating unit and the power unit are detachably coupled,
Wherein the first planetary gear and the first worm gear are connectable via a key, and the second planetary gear and the second worm gear are connectable via a key. The method according to claim 1,
Further comprising a worm wheel rotation control unit that receives the rotation of the first worm gear or the second worm gear and adjusts a rotation direction of the one worm wheel. The method according to claim 6,
The worm wheel rotation control unit includes:
A rotating rod connected to the first worm gear or the second worm gear and capable of rotating simultaneously with the first worm gear or the second worm gear;
A rotating block coupled to the rotating bar so as to be movable along the longitudinal direction of the rotating bar when the rotating bar rotates;
A first limit switch provided to be in contact with the rotating block when the rotating block is moved in one direction;
A second limit switch provided to be in contact with the rotating block when the rotating block is moved in the other direction; And
And a control unit which receives a driving signal of the first limit switch and the second limit switch and transmits a driving signal to the one driving motor so as to adjust the rotation direction of the rotation axis of the one driving motor Dual Worm Slow Drive Unit. The method according to claim 1,
Wherein the first and second worm gears are coupled to each other at positions opposite to each other with respect to the one worm wheel.
KR1020150053804A 2015-04-16 2015-04-16 Dual warm slow type drive apparatus KR101786902B1 (en)

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Application Number Priority Date Filing Date Title
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KR101786902B1 KR101786902B1 (en) 2017-10-18

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100961983B1 (en) 2010-03-03 2010-06-08 주식회사 한국리레이 Worm gear

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW553339U (en) * 2002-04-16 2003-09-11 Yan-Shiang Liou Differential gear apparatus
KR200410770Y1 (en) * 2005-12-29 2006-03-08 권영식 A belt massager
JP2009095954A (en) * 2007-10-19 2009-05-07 Tsudakoma Corp Index table

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100961983B1 (en) 2010-03-03 2010-06-08 주식회사 한국리레이 Worm gear

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