WO2014077449A1

WO2014077449A1 - Variable speed driving apparatus

Info

Publication number: WO2014077449A1
Application number: PCT/KR2012/010758
Authority: WO
Inventors: 이우용
Original assignee: 동아하이테크 주식회사
Priority date: 2012-11-16
Filing date: 2012-12-11
Publication date: 2014-05-22
Also published as: KR20140063384A; KR101551708B1; KR20140063385A; KR101551710B1; KR101502382B1; KR101551711B1; KR101551709B1; KR20140063386A; KR20140063383A; KR20140063387A

Abstract

Disclosed is a variable speed driving apparatus. The disclosed variable speed driving apparatus comprises: a case unit; a driving member arranged in one side of the case unit so as to supply rotating force; a driving gear connected to the driving member through a shaft so as to rotate; a first connection gear unit which rotates by being engaged with one side of the driving gear and which is arranged in the direction intersecting the driving gear; a second connection gear unit which rotates by being engaged with the other side of the driving gear and which is arranged in the direction intersecting the driving gear; a slave gear which rotates by being engaged with the first connection gear unit and the second connection gear unit; and an output unit connected to the rotating center shaft of the slave gear so as to rotate together with the slave gear.

Description

Variable speed drive

The present invention relates to a shift type drive device, and more particularly, to a shift type drive device capable of improving productivity by reducing the number of parts for achieving shifts.

Generally, a driving device is used for raising and lowering the sunshade used for automobiles, braking of the parking brake device, and the like.

The driving device, the gear is rotated by receiving the power of the motor, the gears are transmitted to the power of the motor is shifted to increase the rotation torque.

The output shaft connected to the gear rotates to operate the sunscreen or parking brake.

Background art of the present invention is disclosed in Korean Unexamined Patent Publication No. 2010-0043776 (published on April 29, 2010, title of the invention: a sun shade driving device of a vehicle).

Increasing the rotational torque generated by the motor, the installation space of the gear connected to the motor increases, so interference with other components occurs. Therefore, there is a need for improvement.

The present invention has been made by the necessity as described above, the object of the present invention is to provide a variable speed drive that can reduce the installation space of the gear to increase the torque generated in the motor to prevent the occurrence of interference with other components. There is this.

The variable speed drive device according to the present invention includes: a case part, a drive member installed at one side of the case part to supply rotational power, a drive gear connected to the drive member to rotate, and rotated in engagement with one side of the drive gear. A first connecting gear part installed in a direction intersecting the gear, a second connecting gear part interlocking with the other side of the drive gear and installed in a direction intersecting the drive gear, and a first connecting gear part and a second connecting gear part And a driven gear and an output unit connected to the center of rotation of the driven gear and rotating together with the driven gear.

The case part includes a cover case covering an upper side, a case body coupled to a lower side of the cover case, a first mounting part forming a space in which a driving member is installed on one side of the case body, and an output part provided on the other side of the case body. It is preferable to include a second mounting portion for forming a space and a rotation support member extending upwardly of the case body to support both sides of the first connecting gear portion and the second connecting gear portion, respectively.

In addition, the first mounting portion preferably includes a mounting groove portion forming a groove portion into which the upper portion of the driving member is inserted in the lower portion of the case body, and a mounting case surrounding the lower portion of the driving member and fixed to the case body.

In addition, the drive member preferably includes an electric motor that generates rotational power by supply of electricity.

In addition, the drive gear and the driven gear is protruded to the upper side of the case body is preferably installed in parallel with each other.

In addition, it is preferable that the gap between the first connecting gear portion and the second connecting gear portion gradually widens in the direction from the driving gear toward the driven gear.

In addition, the first connection gear unit includes a first rotary gear meshed with the driving gear, a first worm gear meshed with the driven gear, and a first connecting bar connected to the first rotary gear and the first worm gear in a horizontal direction. It is preferable.

In addition, the diameter of the first rotary gear is larger than the diameter of the drive gear is preferably decelerated.

In addition, the diameter of the driven gear is larger than the diameter of the first worm gear is preferably decelerated.

In addition, the second connection gear portion includes a second rotary gear meshed with the driving gear, a second worm gear meshed with the driven gear, and a second connecting bar connected to the second rotary gear and the second worm gear in a horizontal direction. It is preferable.

In addition, the output unit includes a coupling protrusion which rotates together with the driven gear in engagement with the rotation center axis of the driven gear, an output body extending downward of the coupling protrusion, and an output gear fixed to the lower side of the output body and rotating like the output body. It is preferable.

In the variable speed drive device according to the present invention, the first deceleration is made in the first rotary gear and the second rotary gear meshed with the drive gear, and the second deceleration is made in the first worm gear and the second worm gear meshed with the driven gear. Therefore, it is possible to reduce the installation space of the gear to increase the rotational torque generated from the motor to prevent the occurrence of interference with other components.

In addition, the present invention, the number of parts for the deceleration is reduced can reduce the production cost, the assembly process is also reduced can improve the productivity of the product.

In addition, the present invention, the first connecting gear portion and the second connecting gear portion is provided on both sides of the drive gear and the driven gear to transmit power, it is possible to improve the output torque compared to the drive device provided with one connection gear.

In addition, the present invention, when coupled to the caliper output unit for transmitting the power of the first connecting gear portion and the second connecting gear portion, it is possible to prevent the occurrence of shaking and distortion of the output portion can reduce the operating noise.

In addition, as the rotational direction of the first connecting gear portion and the second connecting gear portion engaged with the driven gear is reversed, rotation of the driven gear connected to the first connecting gear portion and the second connecting gear portion can be made stable.

1 is a perspective view schematically showing an outer appearance of a shift type driving apparatus according to an exemplary embodiment of the present invention.

2 is a perspective view showing a state in which the cover case according to an embodiment of the present invention is separated from the case body.

3 is an exploded perspective view illustrating a shift type driving apparatus according to an exemplary embodiment of the present invention.

Figure 4 is a perspective view showing the lower portion of the case portion according to an embodiment of the present invention.

FIG. 5 is a plan view schematically illustrating an installation state of a first connecting gear part and a second connecting gear part according to an exemplary embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of a variable speed drive apparatus according to the present invention. For convenience of description, a shift type driving apparatus used in an automobile will be described as an example. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator. Therefore, definitions of these terms should be made based on the contents throughout the specification.

1 is a perspective view schematically showing the external appearance of the variable speed drive apparatus according to an embodiment of the present invention, Figure 2 is a perspective view showing a state in which the cover case according to an embodiment of the present invention is separated from the case body; 3 is an exploded perspective view illustrating a shift type driving apparatus according to an exemplary embodiment of the present invention, FIG. 4 is a perspective view illustrating a lower portion of a case unit according to an exemplary embodiment of the present invention, and FIG. 5 is an exemplary embodiment of the present invention. 4 is a plan view schematically illustrating the installation state of the first and second connection gears according to the embodiment.

As shown in Figures 1 to 3, the variable speed drive device 1 according to an embodiment of the present invention, the case portion 10, the drive is installed on one side of the case portion 10 to supply rotational power A first connector that is installed in a direction intersecting the drive gear 35 by engaging with the member 30, the drive gear 35 that is axially connected to the drive member 30 and rotates to one side of the drive gear (35). The second connecting gear part 50, the first connecting gear part 40, and the second connecting gear part which are rotated in engagement with the other side of the fish part 40, the driving gear 35 and intersect with the driving gear 35. A driven gear 60 that rotates in engagement with 50 and an output unit 70 that is connected to the center of rotation of the driven gear 60 and rotates with the driven gear 60.

As shown in FIGS. 2 to 5, the case part 10 forming the outer shape of the variable speed drive device 1 includes a cover case 11 covering an upper side of the variable speed drive device 1, and a cover. It includes a case body 12 coupled to the lower side of the case (11).

One side of the case body 12 is provided with a first mounting portion 13 to form a space for the drive member 30 is installed, the other side of the case body 12 to form a space for the output unit 70 is installed The second mounting portion 16 is provided.

The first mounting part 13 according to an embodiment includes a mounting groove part 14 forming a groove part through which the upper part of the driving member 30 is inserted below the case body 12, and a lower part of the driving member 30. Wrapping includes a mounting case 15 is fixed to the case body (12).

As the driving member 30 installed in the first mounting portion 13, various kinds of driving apparatuses may be used in the technical concept of generating rotational power by receiving an energy source.

The drive member 30 according to the embodiment includes an electric motor 32 for generating a rotational power by the supply of electricity.

The shaft member 34 protrudes to the outside of the electric motor 32, the rotation of the shaft member 34 is made by the operation of the electric motor 32.

Since the shaft member 34 is drawn in and fixed to the inside of the drive gear 35, the drive gear 35 rotates together with the shaft member 34.

The drive gear 35 protrudes upward of the case body 12 and is installed in the vertical direction. The drive gear 35 is formed in a rod shape, the teeth of the spiral shape is formed on the outer side of the drive gear 35.

The first connecting gear portion 40 and the second connecting gear portion 50 meshed with the driving gear 35 are installed in a horizontal direction, and the rotation supporting member 20 extending upwardly of the case body 12 includes a first portion. Both sides of the connecting gear portion 40 and the second connecting gear portion 50 are rotatably supported, respectively.

The first connecting gear portion 40 that rotates in engagement with one side of the drive gear 35 (lower side in FIG. 5) is installed in a direction crossing the drive gear 35, and drives power of the drive gear 35 as a driven gear ( 60 may be formed in various shapes within the technical spirit.

The first connecting gear part 40 according to an embodiment of the present invention includes a first rotary gear 42 meshed with the drive gear 35, a first worm gear 44 meshed with the driven gear 60, and a first rotation. The first connection bar 46 is installed in the horizontal direction to connect the gear 42 and the first worm gear 44.

The drive gear 35 meshes with the first rotary gear 42 and the driven gear 60 meshes with the first worm gear 44 to return.

The first rotary gear 42 according to the embodiment is formed in a wwheel shape, the drive gear 35 meshing with the first rotary gear 42 is formed in a worm shape.

In addition, the driven gear 60 is formed in the shape of a wheel wheel, the first worm gear 44 meshing with the driven gear 60 is formed in a worm shape.

Since the worm gear is applied to the first connecting gear part 40, a large reduction ratio of about 1/300 can be obtained.

To this end, the diameter of the first rotary gear 42 is larger than the diameter of the drive gear 35 to form a first reduction, and the diameter of the driven gear 60 is larger than the diameter of the first worm gear 44. Second deceleration.

According to an embodiment, the first connecting bar 46 and the first worm gear 44 are formed of a metal material, and the first rotary gear 42 is molded by an injection operation.

The first connecting gear portion 40 may be integrally molded, but in consideration of weight and difficulty in processing, the first rotary gear 42, which is a relatively low force part, is injection molded using a plastic material. In addition, the first worm gear 44 and the first connection bar 46, which are portions receiving more force than the first rotary gear 42, are formed of a metal material.

The first connecting bar 46 and the first worm gear 44 are processed first, and then the first connecting bar 46 is transferred to the injection molding apparatus, so that the first rotating gear 42 is disposed outside the first connecting bar 46. ) Is injection molded.

Since the drive gear 35 also receives a lot of force as compared to the driven gear 60, the drive gear 35 is formed of a metal material, the driven gear 60 is injection molded using a plastic material.

The second connection gear portion 50 which rotates in engagement with the other side of the drive gear 35 (upper reference in Fig. 5) is installed in a direction intersecting the drive gear 35, and drives the power of the drive gear 35 as a driven gear ( 60 may be formed in various shapes within the technical spirit.

The second connecting gear part 50 according to an embodiment includes a second rotary gear 52 meshed with the drive gear 35, a second worm gear 54 meshed with the driven gear 60, and a second rotation. The second connection bar 56 is installed in the horizontal direction and connects the gear 52 and the second worm gear 54.

When the upper surface of the case body 12 is horizontally installed, the center of rotation of the drive gear 35 and the driven gear 60 is located in the vertical direction, and is made to mesh with the drive gear 35 and the driven gear 60 to return. The central axis of rotation of the first connecting gear portion 40 and the second connecting gear portion 50 is located in the horizontal direction.

In addition, the distance between the first connecting gear portion 40 and the second connecting gear portion 50 is formed to gradually open toward the direction from the drive gear 35 toward the driven gear 60.

The drive gear 35 meshes with the second rotary gear 52 and the driven gear 60 meshes with the second worm gear 54 to return.

The second rotary gear 52 according to the embodiment is formed in a wwheel shape, the second worm gear 54 to be engaged with the driven gear 60 is formed in a worm shape.

Since the worm gear is applied to the second connection gear part 50, a large reduction ratio of about 1/300 can be obtained.

To this end, the diameter of the second rotary gear 52 is larger than the diameter of the drive gear 35 to form a first reduction, and the diameter of the driven gear 60 is larger than the diameter of the second worm gear 54. Second deceleration.

According to an embodiment, the second connecting bar 56 and the second worm gear 54 are formed of a metal material, and the second rotary gear 52 is formed by injection.

The second connecting gear portion 50 may be integrally molded, but in consideration of weight and difficulty in processing, the second rotary gear 52, which is a relatively low force part, is injection molded using a plastic material. In addition, the second worm gear 54 and the second connection bar 56, which are parts receiving more force than the second rotary gear 52, are formed of a metal material.

The second connecting bar 56 and the second worm gear 54 are processed first, and then the second connecting bar 56 is transferred to the injection molding apparatus, so that the second rotary gear 52 is disposed outside the second connecting bar 56. ) Is injection molded.

The first connecting gear part 40 and the second connecting gear part 50 are installed at both sides of the driving gear 35 at the same time, and the first connecting gear part 40 and the second connector are also provided on both sides of the driven gear 60. The fisherman 50 is installed in an engaged state at the same time.

Therefore, since the power transmitted from the driving gear 35 to the driven gear 60 is distributed to the first connecting gear portion 40 and the second connecting gear portion 50, the first connecting gear portion 40 and the second connecting gear portion ( 50) durability is improved.

The central axis of rotation of the driven gear 60 which rotates in engagement with the first connecting gear portion 40 and the second connecting gear portion 50 is installed in the vertical direction.

A coupling protrusion 72 of the output unit 70 is installed through the central axis of rotation of the driven gear 60.

The cross section of the engaging projection 72 is formed in a polygonal shape, and is formed in the same polygonal shape as the cross section of the cross section of the coupling projection 72 of the hole provided in the center of rotation of the driven gear 60 into which the engaging projection 72 is inserted. The driven gear 60 and the output unit 70 rotate together.

The output unit 70 according to an embodiment includes an engaging protrusion 72 which rotates together with the driven gear 60 by being engaged with the rotational center axis of the driven gear 60, and an output extending downward of the engaging protrusion 72. A body 74 and an output gear 76 fixed to the lower side of the output body 74 and rotated together with the output body 74.

The output body 74 is extended to the lower side of the engaging projection 72, the output gear 76 provided on the lower side of the output body 74 is the second through the connection hole 18 of the second mounting portion (16) It protrudes below the mounting part 16.

The second mounting portion 16 on which the driven gear 60 is rotatably installed is provided at a position opposite to the first mounting portion 13 on which the driving member 30 is installed.

The second mounting portion 16 provided on the other side of the case body 12 has an inner groove 17 in which the driven gear 60 is rotatably installed, and a connection hole for forming a through hole in the center of the inner groove 17. (18).

Hereinafter, with reference to the accompanying drawings will be described in detail the operating state of the variable speed drive device 1 according to an embodiment of the present invention.

When the electric motor 32 is operated to rotate the shaft member 34, the drive gear 35 connected to the shaft member 34 is rotated.

The first reduction gear is made while the first rotation gear 42 of the first connection gear part 40 and the second rotation gear 52 of the second connection gear part 50 mesh with the driving gear 35.

When the first connecting bar 46 is rotated by the rotation of the first rotary gear 42, the first worm gear 44 fixed to the first connecting bar 46 rotates to rotate the driven gear 60. Secondary deceleration is performed between the first worm gear 44 and the driven gear 60.

At the same time, when the second connecting bar 56 is rotated by the rotation of the second rotary gear 52, the second worm gear 54 fixed to the second connecting bar 56 rotates while the driven gear 60 is rotated. Therefore, the second deceleration is also performed between the second worm gear 54 and the driven gear 60.

By rotation of the driven gear 60, the engaging projection 72 of the output portion 70 connected to the driven gear 60 is rotated. Since the output gear 76 also rotates together with the engaging projection 72, the output of the variable speed drive device 1 is achieved.

According to the configuration as described above, the variable speed drive device 1 according to the embodiment, the first deceleration in the first rotary gear 42 and the second rotary gear 52 meshing with the drive gear 35 is Since the second deceleration is performed in the first worm gear 44 and the second worm gear 54 which meshes with the driven gear 60, the other parts are reduced by reducing the installation space of the gear which increases the rotation torque generated from the motor. The occurrence of interference with can be prevented.

In addition, the variable speed drive device 1 according to an embodiment may reduce production costs by reducing the number of parts for deceleration, and may reduce the assembly process, thereby improving product productivity.

Further, since the first connecting gear portion 40 and the second connecting gear portion 50 are installed on both sides of the driving gear 35 and the driven gear 60 to transmit power, the output torque is higher than that of the driving device having one connecting gear. Can improve.

And, when the output portion 70 is connected to the caliper, the first connecting gear portion 40 and the second connecting gear portion 50 on both sides, the use of the first connecting gear portion 40 and the second connecting gear portion 50 This prevents the occurrence of shaking and distortion of the output unit 70 can reduce the operating noise.

Then, the rotational direction of the first connecting gear portion 40 and the second connecting gear portion 50 engaged with the driven gear 60 are opposite to each other, so as to fit the first connecting gear portion 40 and the second connecting gear portion 50. The physics driven gear 60 is balanced and can be stably rotated. Since the rotation of the output unit 70 connected to the driven gear 60 is also made stable, it is possible to improve the durability of the variable speed drive device 1 and other parts engaged with it.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art to which the art belongs can make various modifications and other equivalent embodiments therefrom. Will understand.

In addition, the shift type driving apparatus used in an automobile has been described as an example, but this is merely an example, and the shift type driving apparatus according to the present invention may be used in a mechanical device other than the automobile.

Therefore, the true technical protection scope of the present invention will be defined by the claims.

Claims

A case part;

A driving member installed at one side of the case part to supply rotational power;

A drive gear axially connected to the drive member to rotate;

A first connection gear part which is engaged with one side of the drive gear and rotates and is installed in a direction crossing the drive gear;

A second connection gear part which is engaged with the other side of the drive gear and rotates and is installed in a direction crossing the drive gear;

A driven gear rotating in engagement with the first connecting gear portion and the second connecting gear portion; And

And an output unit connected to the rotational center shaft of the driven gear to rotate together with the driven gear.
The method of claim 1,

The case part, the cover case to cover the upper side;

A case body coupled to the lower side of the cover case;

A first mounting part forming a space in which the driving member is installed on one side of the case body;

A second mounting part forming a space in which the output part is installed on the other side of the case body; And

And a rotation support member extending upwardly of the case body to rotatably support both sides of the first connecting gear portion and the second connecting gear portion, respectively.
The method of claim 2,

The first mounting portion, the mounting groove portion to form a groove portion into which the upper portion of the drive member is inserted in the lower portion of the case body; And

A shift type driving device comprising a mounting case surrounding a lower portion of the driving member and fixed to the case body.
The method of claim 3, wherein

The drive member, the variable speed drive device characterized in that it comprises an electric motor for generating rotational power by the supply of electricity.
The method of claim 3, wherein

The drive gear and the driven gear is protruding to the upper side of the case body is shifting type drive device, characterized in that installed in parallel with each other.
The method of claim 5,

And a gap between the first connecting gear portion and the second connecting gear portion gradually increases in the direction from the driving gear toward the driven gear.
The method of claim 6,

The first connection gear unit may include a first rotary gear meshed with the driving gear to return;

A first worm gear meshed with the driven gear; And

And a first connection bar connecting the first rotary gear and the first worm gear and installed in a horizontal direction.
The method of claim 7, wherein

A variable speed drive device, characterized in that the diameter of the first rotary gear is formed larger than the diameter of the drive gear to reduce the speed.
The method of claim 8,

A variable speed drive device, characterized in that the diameter of the driven gear is larger than the diameter of the first worm gear to reduce the speed.
The method of claim 6,

The second connecting gear portion may include a second rotary gear meshed with the driving gear;

A second worm gear meshed with the driven gear; And

And a second connection bar connecting the second rotary gear and the second worm gear and installed in a horizontal direction.
The method of claim 1,

The output unit, the engaging projection to rotate with the driven gear in engagement with the rotation center axis of the driven gear;

An output body extending downward of the coupling protrusion; And

Variable speed drive device characterized in that the output gear is fixed to the lower side of the output body to rotate with the output body.