KR102001540B1 - Multi-Function Planetary Reduction Apparatus - Google Patents

Abstract

The present invention provides a multi-function speed reduction apparatus which comprises: a first stage speed reduction module (110) connected to a drive shaft (11) of an electric motor to primarily reduce a rotating force; a second stage speed reduction module (120) secondarily reducing the rotating force of the first stage speed reduction module (110); an output cover (130) thirdly reducing a speed of the rotating force of the second stage speed reduction module (120); and a housing (140). Therefore, a braking function without a reversal phenomenon is provided, and manual operation is possible. Moreover, a high speed reduction rate is provided, and the multi-function speed reduction apparatus can be miniaturized and lightened.

Description

{Multi-Function Planetary Reduction Apparatus}

More particularly, the present invention relates to a multifunctional decelerator capable of providing a braking function without a reverse phenomenon, enabling a manual operation, providing a high reduction ratio, and downsized and lightweight.

As is known, the deceleration device includes a series of gear devices, a combination of a shaft and a bearing, and is disposed in the housing to provide a reduction rate of the rotation speed from the drive shaft to the output shaft at a constant deceleration rate, .

As a related art, Korean Patent Laid-Open Publication No. 10-2005-0015659 is disclosed. In the conventional reduction gear device having a large reduction ratio, an internal gear 11 is formed, and the planetary gears A driving shaft 2 penetrating into the housing 1 and coupled to the sun gear 13 and a planetary gear set 12 disposed in parallel with the internal gear 11, And an output shaft 3 connected to the driving gear 31 whose dimension is different from that of the internal gear 11 which is coupled to the output shaft 12 of the output shaft 3 to provide a large reduction ratio while reducing the size and weight.

However, the dimension of the drive gear is larger than that of the internal gear, so that the reduction ratio to the output shaft may be rather reduced, the braking function is limited, and there is a need to improve the application to a wider field.

Korean Patent Laid-Open No. 10-2005-0015659 (Decelerator with large reduction ratio, Feb. 21, 2005)

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a braking device and a braking device capable of transmitting a rotational force of a high reduction ratio to an output shaft by a multi- And it is applicable to a wide range of fields because it can be applied in a narrow space.

In order to achieve the above-described object, the present invention provides an electric motor comprising: a first sun gear formed on a front end of a drive shaft of an electric motor; a first planetary gear meshing with the first sun gear; And a first ring gear meshing with the first planetary gear, wherein an output shaft gear hole is formed at one center of one side of the first carrier, ; A second planetary gear meshing with the second sun gear and a second carrier in which the second planetary gear is housed inside and the corresponding rotational shafts of the second planetary gear are respectively engaged, And a second ring gear meshing with the second planetary gear; An output cover fixedly coupled to the second ring gear and having an output shaft at a center thereof; And a second housing fixedly coupled to the first housing and coupled to the output cover so as to be rotatable, the second housing being exposed through the output shaft. Wherein the first carrier and the second carrier are coaxially coupled so as to be rotatable with respect to each other, the second planetary gear is superimposed on and engages with the first ring gear and the second ring gear, Wherein the second ring gear is formed with a through hole, one end of the second sun gear extends through the through hole, a manual operation portion is formed at the end, and the dimension of the second ring gear is smaller than the dimension of the first ring gear To provide a multifunctional deceleration device.

Here, the output shaft may be extended in the form of a hexagonal bolt.

The manual operation portion may include a rotary groove recessed inward, a hexagonal wrench bolt, a hexagonal nut shape, a handle having the chuck, an electric drill having the chuck, or an emergency battery It can be rotated by one motor.

The outer surface of the first ring gear is chamfered to have a triangular cross-sectional structure, and the inner surface of the first housing is chamfered to have a triangular cross-sectional structure corresponding to the outer surface structure of the first ring gear, And the outer cover of the second ring gear is chamfered to have a triangular cross-sectional structure, and the output cover is formed in a circular cross-sectional structure, and is opposed to the second ring gear, And the inner surface of the second housing may be formed in a circular cross-sectional structure corresponding to the outer surface structure of the output cover.

In addition, a fixing plate through which the fixing hole passes may be formed at the lower end of the first housing.

The manual operation portion may include a clutch connected / disconnected to / from the driving portion, and the output shaft may be connected to or disconnected from the driving portion by operation of the clutch.

The first carrier and the second carrier may be coupled by a pair of left and right brackets, and the first and second planetary gears may be rotatably coupled to the inside of the bracket.

According to the present invention, there is an effect that a rotational force of a high reduction ratio can be transmitted to the output shaft by the multi-stage deceleration structure.

In addition, it provides a powerful braking function without reverse phenomenon caused by vibration or load, so it can be applied as a winch when opening and closing the gate of a dam, breakwater, reservoir or river and providing stable braking function, Can be precisely controlled to an accurate position and opened and closed.

In addition, when the water gate needs to be opened or closed under emergency situations or electric motor malfunctions, it can be used as a winch capable of opening and closing the water gate quickly by the manual operation portion. In comparison with self- And a clutch is interposed between the output shaft and the drive unit to couple or release the output shaft to or from the drive unit by the operation of the clutch so that the manual / There is an effect that can be implemented.

Furthermore, the present invention can be applied to a narrow space by realizing miniaturization and weight reduction, and can be widely applied to an industrial robot joint field requiring precise position control.

FIG. 1 illustrates a conventional deceleration device.
2 is a perspective view of a multifunctional decelerator according to the present invention.
3 and 4 are exploded perspective views of the multifunctional speed reducing device of FIG.
5 is a cutaway perspective view of the multifunctional speed reducing device of FIG.
6 is a view showing the deceleration module of the multifunctional deceleration device of FIG.
Figures 7 and 8 are exploded perspective views of the deceleration module of Figure 6;

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

FIG. 2 is a perspective view of a multifunctional speed reducing apparatus according to the present invention, FIGS. 3 and 4 are exploded perspective views of the multifunctional speed reducing apparatus of FIG. 2, and FIG. 5 is a cutaway perspective view of the multifunctional speed reducing apparatus of FIG. 2 And FIG. 6 is a view showing the deceleration module of the multifunctional deceleration device of FIG. 2 separated, and FIGS. 7 and 8 are exploded perspective views of the deceleration module of FIG.

2 to 8, a multifunctional speed reduction device according to an embodiment of the present invention includes a first speed reduction module 110 that is connected to a driving shaft 11 of an electric motor and decelerates a rotational force by a first degree, A second stage deceleration module 120 for decelerating the rotational force of the first stage deceleration module 110, an output cover 130 for decelerating the rotational force of the second stage deceleration module 120 by third order, So as to provide a braking function without a reverse phenomenon, to enable manual operation, to provide a high reduction ratio, and to downsize and lighten the braking function.

The first stage speed reduction module 110 includes a first sun gear 111 formed on the front end of the drive shaft 11 of an electric motor (not shown), a first planetary gear 112 meshing with the first sun gear 111, A first carrier 113 in which the first planetary gear 112 is accommodated and the corresponding rotary shafts 112a of the first planetary gears 112 are respectively engaged with the first planetary gears 112, 1 ring gear 114 as shown in Fig.

Here, as shown in FIG. 4, an output shaft coaxial hole 113a is formed at the center of one side of the first carrier 113.

8, the first planetary gears 112 are three in number, spaced apart from each other by 120 degrees with respect to the axis, and partially exposed to the outer circumferential surface of the first carrier 113, So that the first planetary gear 112 is engaged with the first ring gear 114.

The first stage speed reduction module 110 decelerates the rotational force of the drive shaft 11 to a single value at a reduction ratio by the dimensions of the first sun gear 111 and the first ring gear 114, (110).

The second stage speed reduction module 120 includes a second sun gear 121 coupled to the output shaft gear hole 113a, a second planetary gear 122 meshing with the second sun gear 121, A second carrier 123 in which a gear 122 is housed inside and a corresponding rotation axis 122a of the second planetary gear 122 is engaged with each other and a second ring gear 124 ).

Here, the second planetary gears 122 are three in number, spaced at equal intervals of 120 degrees with respect to the axes, and the second planetary gears 122 are spaced apart from each other at the same intervals as the first planetary gear 112 and the first carrier 113, The planetary gear 122 is received in a structure partially exposed to the outer peripheral surface of the second carrier 123 so that the second planetary gear 122 meshes with the second ring gear 124. [

The second stage reduction module 120 is configured to reduce the rotational force of the second carrier 123 of the second stage reduction module 120 by a reduction ratio by the dimensions of the second sun gear 121 and the second ring gear 124 Decelerated to two values and transmitted to the output cover 130 at the rear end.

7 and 8, the first carrier 113 and the second carrier 123 are constituted by a pair of left and right brackets and are coupled by corresponding coupling pins 113a and 123a, The first planetary gear 112 and the second planetary gear 122 may be coupled to be rotatable by the corresponding rotation shafts 112a and 122a.

Next, the output cover 130 is fixedly coupled to the second ring gear 124, and an output shaft 131 is formed at the center. Here, the output shaft 131 may extend in the form of a hexagonal bolt, and may transmit a rotational force to a rear end driving unit (not shown) coupled to the output shaft 131.

3 and 4, the housing 140 includes a first housing 141 to which the first ring gear 114 is fixedly coupled inward, and a second housing 141 fixed to the first housing 141 And a second housing 142 coupled to the output cover 130 so as to be rotatable and exposed through the output shaft 131.

For example, the outer surface of the first ring gear 114 is chamfered to have a triangular cross-sectional structure, and the inner surface of the first housing 141 is chamfered in a triangular cross-sectional structure corresponding to the outer surface structure of the first ring gear 114, Processed, and fixed to each other.

3, the outer surface of the second ring gear 124 is chamfered to have a triangular cross-sectional structure, the output cover 130 is formed in a circular cross-sectional structure, and the ring gear 124 is opposed to the second ring gear 124 The inner circumferential surface of the second housing 142 corresponds to the outer circumferential structure of the output cover 130 and has a circular cross-sectional structure So that the output cover 130 rotates inside the second housing 142 in cooperation with the second ring gear 124.

Here, the outer surface of the first ring gear 114, the inner surface of the first housing 141, and the outer surface of the second ring gear 124 are exemplified by the triangular cross-sectional structure, 131 or the speed reduction ratio characteristics of the reduction gear mechanism.

2, a fixing plate 141b through which the fixing hole 141a is passed is formed at the lower end of the first housing 141 so that the bolt or the piece fastened to the fixing hole 141a, So that it is possible to stably fix the mounting portion 140 in the installation space.

3, the first carrier 113 and the second carrier 123 are coaxially coupled so as to be mutually rotatable, and the second planetary gear 122, as shown in FIGS. 4 and 5, Along with the inner gear of the first ring gear 113 which is fixed by the first housing 141 and does not rotate so as to overlap with the first ring gear 114 and the second ring gear 124, The first carrier 113 in which the planetary gear 112 rotates and the first planetary gear 112 is rotated rotates and interlocks so that the second sun gear 121 rotates in synchronization with the second planetary gear 122 The second ring gear 124 is rotated, and the output cover 130 is finally rotated by the rotation of the second planetary gear 122.

Here, the dimension of the second ring gear 124 is relatively smaller than the dimension of the first ring gear 114, thereby further providing a reduction ratio corresponding to the dimension difference.

That is, when the second planetary gear 122 makes one revolution along the first ring gear 114 in accordance with the difference between the dimension of the first ring gear 114 and the dimension of the second ring gear 124, The gear 124 rotates in the opposite direction by a dimension difference so that the second ring gear 124 rotates by one rotation to the starting point of the first ring gear 114 ({(first ring gear-second ring gear) / first Ring gear} of the present invention.

The first ring gear 114 and the second ring gear 124 meshing with the first reduction gear module 110, the second reduction gear module 120, and the second planetary gear 122 meshes with each other. Speed rotation ratio is transmitted to the output shaft 131 by the multi-stage speed reduction structure.

The second planetary gear 122 meshes with the first ring gear 114 and the second ring gear 124 so that the first ring gear 114 and the second ring gear 124 are engaged when the rotational force is not transmitted from the drive shaft 11 And the second ring gear 124, the second ring gear 124 is maintained in a stopped state, thereby providing a strong self-lock function without reversing due to vibration or load .

Therefore, it can be applied as a winch when opening and closing a dam, a breakwater, a reservoir, or a river, so that a stable watertight braking function can be provided without installing a separate watertight brake.

3, a through hole 131a is formed in the output shaft 131 and one end of the second sun gear 121 passes through the through hole 131a, And a manual operation portion 121a is formed at the end of the manual operation portion 121a so that the manual operation portion 121a can be operated in the state where the first deceleration by the first speed reduction module 110 is performed without receiving the rotational force from the drive shaft 11 of the electric motor. The output shaft 131 of the output cover 130 can be rotated by manual rotation of the output shaft 121a.

Accordingly, when the water gate is required to be opened and closed under a power failure or in the case of an electric motor malfunction, or in an urgent situation, it can be used as a winch capable of opening and closing the water gate quickly by the manual operation portion 121a.

In addition, compared to the self-opening and closing type water gate, the self weight object is unnecessary, so that the water gate structure can be simplified and reduced in weight, the water gate opening and closing can be performed more quickly, and the winder itself can be miniaturized and lightweight.

Here, the manual operating portion 121a may include a rotary groove recessed inwardly, a hexagonal wrench bolt, or a hexagonal nut, and may include a handle having the chuck, an electric drill having the chuck, And may be rotatable by a motor provided with a motor.

The manual operation portion 121a includes a clutch (not shown) connected / disconnected to / from a driving portion, for example, a water gate opening / closing driving portion. The clutch 131 can connect or disconnect the output shaft 131 with the driving portion.

Therefore, by the structure of the above-described multi-function decelerating device, the multi-stage decelerating structure can transmit the rotational force of a high reduction ratio to the output shaft and provides a powerful braking function without reverse phenomenon caused by vibration or load, It is possible to open and close the gate by precise control of the water gate by precise position by providing stable water gate braking function without installing a separate water gate brake by applying it as a winch when opening and closing the water gate of the river. In the case of opening and closing the sluice gate, the sluice gate can be used as a winch that can open and close the sluice gate quickly by the manual operation portion. Further, compared with the self-opening sluice gate, Opening and closing is performed more quickly, and a clutch is opened between the output shaft and the drive section By operation of a clutch connecting the output shaft and the driving hayeoseo on or off, it is possible to implement the manual / automatic switch.

The embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention and therefore various equivalents It should be understood that water and variations may be present.

110: First-stage deceleration module 111: First-
112: first planetary gear 112a:
113: first carrier 113a:
114: first ring gear 120: second stage reduction module
121: second sun gear 121a:
122: second planetary gear 122a:
123: second carrier 124: second ring gear
124a: Coupling port 130: Output cover
131: Output shaft 131a: Through hole
132: coupling portion 140: housing
141: first housing 141a: fixing hole
141b: Fixing plate 142: Second housing
11:

Claims (7)

A first planetary gear meshing with the first sun gear; a second planetary gear having a first carrier in which the first planetary gear is housed inside and a corresponding rotation axis of the first planetary gear is engaged with the first sun gear; And a first ring gear meshing with the first planetary gear, wherein an output shaft coaxial hole is formed at a center of one side of the first carrier;
A second planetary gear meshing with the second sun gear and a second carrier in which the second planetary gear is housed inside and the corresponding rotational shafts of the second planetary gear are respectively engaged, And a second ring gear meshing with the second planetary gear;
An output cover fixedly coupled to the second ring gear and having an output shaft at a center thereof; And
And a second housing fixedly coupled to the first housing and coupled with the output cover so as to be rotatable and the output shaft passing through the second housing, And a housing,
Wherein the first carrier and the second carrier are coaxially coupled so as to be mutually rotatable, the second planetary gear is overlapped with and engages with the first ring gear and the second ring gear, and a through hole is formed inside the output shaft , The one end of the second sun gear extends through the through hole and the manual operation portion is formed at the end thereof, the dimension of the second ring gear is relatively smaller than the dimension of the first ring gear,
Wherein an outer surface of the first ring gear is chamfered to have a triangular cross-sectional structure, an inner surface of the first housing is chamfered to have a triangular cross-sectional structure corresponding to an outer surface structure of the first ring gear,
Wherein the outer cover is chamfered to have a triangular cross-sectional structure, and the output cover is formed in a circular cross-sectional structure, and a coupling hole corresponding to the outer surface structure of the second ring gear, opposite to the second ring gear, Extended,
Wherein the inner surface of the second housing is formed in a circular cross-sectional shape corresponding to the outer surface structure of the output cover.
The method according to claim 1,
Characterized in that the output shaft is elongated in the form of a hexagonal bolt.
The method according to claim 1,
The manual operation portion may include a rotary groove recessed inwardly, a hexagonal wrench bolt formed therein, a hexagonal nut-shaped handle, a handle provided with the chuck, an electric drill provided with the chuck, Is rotatable by means of a spring.
delete The method according to claim 1,
Wherein a fixing plate is formed at a lower end of the first housing, the fixing hole passing through the fixing hole.
The method according to claim 1,
Wherein the manual operation portion includes a clutch connected / disengaged with the driving portion, wherein the operation of the clutch connects / disengages the output shaft with / from the driving portion.
The method according to claim 1,
Wherein the first carrier and the second carrier are coupled to each other by a pair of right and left brackets, and the first and second planetary gears are rotatably coupled to each other inside the bracket.

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