WO2015093707A1

WO2015093707A1 - Rotation apparatus

Info

Publication number: WO2015093707A1
Application number: PCT/KR2014/007210
Authority: WO
Inventors: 이종원
Original assignee: 삼성테크윈 주식회사
Priority date: 2013-12-19
Filing date: 2014-08-05
Publication date: 2015-06-25
Also published as: KR20150072223A

Abstract

The present invention discloses a rotation apparatus. The rotation apparatus according to the present invention comprises: a stator which is fixed to the outside; a rotor which rotates in a spaced apart relationship from the stator; at least one ball which is installed to rotate on the stator facing the rotor; a guide bracket, arranged between the rotor and the stator, of which a part is inserted into the rotor to rotate along with the rotor, and of which a part point-contacts the at least one ball; an elastic part which is installed between the guide bracket and the rotator in such a way that one end of the elastic part is locked to the rotator and a part of the guide bracket is inserted into the inside of the elastic part; and a guide holder, installed at the rotator, which guides the movement of a guide bracket portion protruding from the surface of the rotator and contacts a part of the guide bracket.

Description

Rotator

The present invention relates to a device and to a rotating device.

In general, the rotating device can be installed in various places. For example, the rotating device may be fixed to the outside and formed to rotate relative to a part. In this case, various electronic equipments are installed in the part of the relative rotation to rotate the electronic equipment in a desired direction. Such electronic equipment may be equipped with a dome camera, a laser scan sensor, a rotation sensor, and the like, and military equipment such as a missile holder may be mounted.

Such a rotating device may be provided with various cables and the like to supply power to the mounted electronic equipment. In addition, the rotating device may be provided with a cable for transmitting a signal detected or generated by the electronic equipment to an external control unit or control unit. The signal or current flowing through the cable may be affected by various noises generated on the surface of the electronic device or generated by the electronic device coming into contact with the outside. Therefore, in order to remove the noise as described above, the rotary device may be provided with a grounding structure for discharging the noise flowing to the surface of the electronic equipment to the outside. In general, such a grounding structure may include a structure through a slip ring, a structure through a bearing, and the like.

In this case, the noise removal efficiency of the electronic device may be determined depending on how well the ground structure is installed between the fixed part and the rotating part when the rotating device is driven.

The grounding structure in the general rotary device as described above is specifically disclosed in Korean Patent Publication No. 2001-0010684 (name of the invention: grounding structure of the head drum device, Applicant: Samsung Electronics Co., Ltd.).

Embodiments of the present invention seek to provide a rotating device.

According to an aspect of the present invention, there is provided a fixed body fixed to the outside, a rotating body disposed so as to be spaced apart from the fixed body, and at least one or more spheres installed to rotate on the fixed body facing the rotating body; A guide bracket disposed between the rotating body and the fixed body, a part of which is inserted into the rotating body to rotate together with the rotating body, and a part of which is in point contact with the at least one sphere; It is installed so that a portion of the guide bracket is inserted therein and the elastic portion is installed between the guide bracket and the rotating body, and the movement of the guide bracket portion installed on the rotating body protruding to the surface of the rotating body The guide device may provide a rotating device including a guide holder in contact with a portion of the guide bracket.

Embodiments of the present invention can ensure a stable ground of the rotating body and the fixture.

1 is an exploded perspective view showing a rotating device according to an embodiment of the present invention.

2 is a cross-sectional view showing the rotating device shown in FIG.

The apparatus may further include a ground plate installed to be connected to the rotating body and the guide bracket to guide the current or the signal of the rotating body to the fixed body.

In addition, the ground plate may be bent from the rotating body and connected to the guide bracket.

In addition, the guide bracket may include a guide body portion in point contact with the at least one or more spheres, and at least one protrusion portion protruding from the guide body portion to the rotating body.

In addition, the guide body may have a first insertion groove formed to insert the at least one sphere.

In addition, the fixture may be provided with a second insertion groove is formed so that the at least one sphere is inserted.

In addition, it is installed to be fixed to the rotating body, it may further include an installation bracket on which the electronic equipment is installed on the outer surface.

The apparatus may further include a stator installed to be fixed to the fixing body, and a rotor connected to the rotating body, installed in the fixing body, and installed to face the stator and selectively rotating.

The apparatus may further include a shaft connected to the rotor and the rotor.

The guide holder may include a contact portion contacting the rotating body and a holder portion protruding from the contact portion.

The invention will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms, and only the present embodiments are intended to complete the disclosure of the present invention, and the general knowledge in the art to which the present invention pertains. It is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is defined only by the scope of the claims. Meanwhile, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, “comprises” and / or “comprising” refers to the presence of one or more other components, steps, operations and / or elements. Or does not exclude additions. Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are only used to distinguish one component from another.

1 is an exploded perspective view showing a rotating device 100 according to an embodiment of the present invention. 2 is a cross-sectional view showing the rotating device 100 shown in FIG.

1 and 2, the rotation apparatus 100 may include a fixture 110 fixed to the outside. In this case, the fixing body 110 may be fixed to a structure, or the like, or may be fixed to the ground. The fixture 110 may have a space formed therein, and a separate structure may be inserted into the space.

The rotating device 100 may include a stator 121 installed to be fixed inside the fixture 110. In addition, the rotating device 100 may include a rotor 122 installed to be rotatable inside the fixture 110. In this case, the stator 121 and the rotor 122 may be formed in various forms. For example, one of the stator 121 or the rotor 122 may be formed in the form of an electromagnet, and the other of the stator 121 or the rotor 122 may be formed in the form of a permanent magnet. At this time, the stator 121 and the rotor 122 are not limited to the above, and may include all structures and all devices for rotating the rotor 122 by interacting with each other. The rotor 122 as described above may include a shaft 122a that transmits rotational force.

The rotating device 100 may include a bearing unit 129 that rotatably supports the shaft 122a. At this time, the bearing portion 129 may be inserted into the fixed body 110 and fixed. In particular, the bearing portion 129 may include a rotary bearing or a rolling bearing.

Meanwhile, the rotating device 100 may include a rotating body 130 that is connected to the rotor 122 and rotates. In this case, the rotor 130 may be connected to the rotor 122 through the shaft 122a. In addition, the rotating body 130 may be installed to surround one surface of the fixing body 110, the rotating body 130 and the fixing body 110 may be installed to be separated from each other.

The rotating device 100 may include at least one sphere 140 disposed between the rotating body 130 and the fixed body 110. At this time, the sphere 140 may be provided in plurality, the plurality of spheres 140 may be disposed to be spaced apart from each other. In addition, a second insertion groove 110a may be formed on the surface of the fixture 110 to insert a plurality of spheres 140 to guide the movement of the spheres 140. Specifically, a part of the fixing body 110 protrudes, and a second insertion groove 110a is formed between the protruding portions so that the sphere 140 freely rotates when the guide bracket 150 will be described later. You can exercise

On the other hand, the rotating device 100 may include a guide bracket 150 which is installed between the rotating body 130 and the fixed body 110. In this case, a part of the guide bracket 150 may be inserted into the rotating body 130, and part of the guide bracket 150 may be in point contact with at least one sphere 140.

In detail, the guide bracket 150 may include a guide body 151 in point contact with at least one or more spheres 140. In this case, the first body 151a may be formed in the guide body 151 so that at least one sphere 140 is inserted and rotated.

In addition, the guide bracket 150 may include at least one protrusion 152 protruding from the guide body 151. In this case, the at least one protrusion 152 may be provided in plurality, and the plurality of protrusions 152 may be formed to be spaced apart from each other, and may protrude from the guide body 151 toward the rotating body 130.

On the other hand, the rotating device 100 may include an elastic portion 160 is installed between the guide bracket 150 and the rotating body 130. In this case, the protruding portion 152 may be inserted into the elastic portion 160, and one end of the elastic portion 160 may be installed on the rotating body 130 to be caught by the rotating body 130. In detail, at least one first protrusion insertion hole 130a into which the elastic part 160 and the protrusion 152 are inserted may be formed in the rotating body 130.

In this case, a locking jaw (not shown) may be formed in the first protrusion insertion hole 130a so that one end of the elastic part 160 may be supported to support the elastic part 160. In addition, the inner diameter of the first protrusion insertion hole 130a is larger than the inner diameter of the second protrusion insertion hole 172a to be described later, and the inner diameter of the second protrusion insertion hole 172a is larger than the outer diameter of the elastic part 160. By being formed, one end of the elastic portion 160 may be supported by the guide holder 170 to be described later. Therefore, the other end of the elastic part 160 may be supported by the guide body 151 to maintain contact between the guide body 151 and the sphere 140.

The elastic unit 160 as described above may be formed of various materials. For example, the elastic portion 160 may be formed of a rubber material, it may be formed in the form of a compression spring. However, hereinafter, the elastic part 160 will be described in detail with reference to a case where the elastic part 160 is formed in the form of a compression spring for convenience of description.

In addition, the elastic unit 160 may be formed in various forms. For example, the elastic portion () may be formed in a cylinder or cone shape. However, hereinafter, the elastic part 160 will be described in detail with reference to a case where the elastic part 160 is formed in a cylindrical shape for convenience of description.

Meanwhile, the rotating device 100 may include a guide holder 170 installed on the rotating body 130 to guide a part of the movement of the guide bracket 150. At this time, the guide holder 170 may be installed from the rotating body 130 toward the mounting bracket 190 to be described later. In addition, the guide holder 170 may be in contact with the guide bracket 150.

The guide holder 170 as described above may include a contact portion 171 in contact with the rotating body 130. In addition, the guide holder 170 may be provided with a holder portion 172 is formed to be bent from the contact portion 171 to protrude. In this case, a second protrusion insertion hole 172a into which the protrusion 152 is inserted may be formed in the holder 172.

The holder 172 as described above may contact the protrusion 152 by inserting the protrusion 152. In this case, the holder 172 may be in contact with the protrusion 152 to transmit noise generated in the rotating body 130 to the fixing body 110.

The rotating device 100 may include a ground plate 180 installed on the rotating body 130 and the guide bracket 150. In this case, the ground plate 180 may be formed in a thin film form or a thin plate form. In addition, the ground plate 180 may be a metal material, and may be formed of an elastic material.

The ground plate 180 as described above may be inserted into the rotating body 130 and bent to be connected to the protrusion 152 of the guide bracket 150. In this case, the ground plate 180 may transmit the current or noise flowing through the rotating body 130 to the fixing body 110 by transferring the guide bracket 150.

In particular, the ground plate 180 may be used when the contact between the guide holder 170 and the protrusion 152 is insignificant. That is, the ground plate 180 may or may not be installed. However, hereinafter, the ground plate 180 will be described in detail with reference to the case where the ground plate 180 is installed for convenience of description.

Meanwhile, the rotating device 100 may include an installation bracket 190 installed to be fixed to the rotating body 130. In this case, a space is formed in the installation bracket 190, and the above-described protrusion 152 and the guide holder 170 may be disposed in the interior space. In addition, an electronic device (not shown) may be installed on an outer surface of the installation bracket 190.

At this time, the electronic equipment may include a variety of equipment, for example, it may include all devices and structures for performing the operation while rotating in a fixed fixture 110, such as a sensor unit, a photographing camera, a magnetic drum. Can be.

Looking at the operation of the rotating device 100 formed as described above, when a current or the like is applied from the outside, the rotor 122 can rotate by the interaction of the rotor 122 and the stator 121. At this time, the rotor 130 connected to the shaft 122a may rotate.

On the other hand, when the rotating body 130 rotates as described above, the mounting bracket 190 may also rotate with the rotating body 130, and the electronic equipment on the mounting bracket 190 may also rotate. In this case, an external power source, an external controller, an external control unit, or the like may transmit a current, a signal, or the like to the electronic device, or may receive a current, a signal, etc. from the electronic device.

In this case, a current, a signal, or the like may flow on at least one surface of the mounting bracket 190 and the rotating body 130, which may generate noise.

At this time, the noise generated on at least one surface of the mounting bracket 190 and the rotating body 130 as described above is moved to the fixed body 110 through the ground plate 180, the structure through the fixed body 110 Or to the ground or the like.

Specifically, when the rotating body 130 rotates as described above, the protrusion 152 inserted into the rotating body 130 may also rotate, and the guide body 151 may also rotate by the rotation of the protrusion 152. In this case, the guide body 151 may contact the sphere 140.

On the other hand, when the guide body 151 rotates as described above, the guide body 151 may be separated from the sphere 140 by vibration or the like. In addition, since the sphere 140 is free to move, a case may deviate from the moving path of the sphere 140.

In this case, the first insertion groove 151a and the second insertion groove 110a may prevent the sphere 140 from being separated by guiding the movement path of the sphere 140. In addition, the elastic unit 160 may exert the guide body 151 toward the sphere 140. In particular, since the elastic portion 160 is compressed than the original length, even if the sphere 140 is worn due to the rotation of the guide body 151, the contact between the guide body 151 and the sphere 140 may be maintained as it is. .

For example, the original length of the elastic portion 160 is formed longer than the distance from the contact portion of the elastic portion 160 and the contact portion 171 to the portion where the guide body portion 151 and the elastic portion 160 contact. Can be.

When the rotor 130 rotates as described above, the ground plate 180 may move together with the protrusion 152. For example, when the protrusion 152 moves toward the fixture 110, a portion of the ground plate 180 connected to the protrusion 152 may also move toward the fixture 110. In addition, in the opposite case, the portion of the ground plate 180 connected to the protrusion 152 may move away from the side of the fixture 110.

Therefore, the rotating device 100 controls the control unit to accurately and cleanly control the signal transmitted from the electronic device by smoothly discharging the noise generated by the rotating body 130 through the fixing body 110 when the rotating body 130 rotates. Can be sent to the unit or the like.

In addition, the rotation apparatus 100 may extend the operating life of the rotation apparatus 100 by maintaining contact between the sphere 140 and the guide bracket 150 even when the sphere 140 is worn when the rotation body 130 rotates. have.

In addition, the rotation apparatus 100 may prevent malfunction and failure of the electronic equipment by discharging the electric current generated in the electronic equipment to the outside through the rotating body 130 and the fixing body 110.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications or variations without departing from the spirit and scope of the invention. Accordingly, the appended claims will include such modifications and variations as long as they fall within the spirit of the invention.

According to an embodiment of the present invention, by providing a rotating device, it is possible to reliably discharge the overcurrent or noise generated from the rotating object to the outside, and the electronic device mounted on a rotating body such as a camera, a sensor, a radar, etc. Embodiments of the invention can be applied.

Claims

Fixture fixed to the outside;

A rotating body disposed to be spaced apart from the fixed body and rotating;

At least one sphere mounted to rotate on the fixture opposite to the rotor;

A guide bracket disposed between the rotatable member and the fixed body and partially inserted into the rotatable body to rotate together with the rotatable body, the guide bracket partially contacting the at least one sphere;

An elastic part installed at one end of the rotating body and having a portion of the guide bracket inserted therein and installed between the guide bracket and the rotating body; And

And a guide holder installed on the rotating body to guide the movement of the guide bracket portion protruding to the surface of the rotating body and contacting a portion of the guide bracket.
The method of claim 1,

And a ground plate installed to be connected to the rotating body and the guide bracket to guide the current or the signal of the rotating body to the fixed body.
The method of claim 2,

The grounding plate is bent from the rotating body and connected to the guide bracket.
The method of claim 1,

The guide bracket,

A guide body in point contact with the at least one sphere; And

And at least one protrusion protruding from the guide body to the rotating body.
The method of claim 4, wherein

And the guide body portion; a first insertion groove formed to insert the at least one sphere.
The method of claim 1,

And the fixing body has a second insertion groove formed to insert the at least one sphere.
The method of claim 1,

It is installed so as to be fixed to the rotating body, the installation bracket on which the electronic equipment is installed on the outer surface.
The method of claim 1,

A stator installed to be fixed to the fixture;

And a rotor connected to the rotating body, installed in the fixed body, and facing the stator to selectively rotate.
The method of claim 8,

And a shaft connected to the rotor and the rotating body.
The method of claim 1,

The guide holder,

A contact portion in contact with the rotating body; And

And a holder portion formed to protrude from the contact portion.