WO2023090518A1

WO2023090518A1 - Rotation device

Info

Publication number: WO2023090518A1
Application number: PCT/KR2021/018471
Authority: WO
Inventors: 배영식
Original assignee: 배영식
Priority date: 2021-11-16
Filing date: 2021-12-07
Publication date: 2023-05-25
Also published as: KR102590876B1; KR20230071235A

Abstract

Disclosed is a rotation device, which is provided at a general cylinder lift so as to apply rotational force to a cylinder lift rod. The rotation device according to an embodiment comprises: a housing having a case shape with an opened upper surface, and having a hole formed in the center thereof; a geared motor which is provided in the housing, and which has an output shaft that is parallel to the center axis of the hole; a pinion coupled to the output shaft; a first ring, which is provided in the housing so as to encompass the hole, has, on the outer periphery thereof, a plain gear part engaging with the pinion, and has a ratchet gear part formed on the inner periphery thereof; a second ring which is disposed inside the first ring, and which has a vertical width larger than that of the first ring, has a ratchet gear part formed at the outer periphery thereof, and has a cut portion; and a stopper which is provided in the housing, and which presses the outer periphery of the second ring toward the center of the hole by means of a control signal.

Description

Rotator

The Present Disclosure relates to a device for applying a rotational force to a rod of an actuator.

Korean Patent Registration No. 10-1784157 and Korean Patent Registration No. 10-2268126 each disclose an example of a cylinder lift for elevating a vehicle.

The cylinder lift disclosed in the above publication is mainly used for servicing vehicles or exhibiting vehicles.

On the other hand, when displaying a vehicle, the display effect can be maximized by rotating the vehicle in place. The cylinder lift published in the above publication only raises and lowers the vehicle, but does not rotate (= rotate) the vehicle in place.

* Prior art literature *

(Patent Document 1) KR 10-1784157 B1 (2017.10.11. Notice)

(Patent Document 2) KR 10-2268126 B1 (2021.06.21. Notice)

It is installed in a general cylinder lift to provide a rotation device that applies rotational force to the rod of the cylinder lift.

The rotating device according to the embodiment (of the present disclosure) is in the form of an enclosure with an open upper surface, a housing having a hole in the center; a geared motor provided inside the housing and having an output shaft parallel to a central axis of the hole; a pinion coupled to the output shaft; a first ring provided inside the housing to surround the hole, having a spur gear part engaged with the pinion on an outer circumference thereof, and a ratchet gear part formed on an inner circumference thereof; a second ring disposed inside the first ring, having a larger upper and lower width than the first ring, having a ratchet gear part formed on the outer circumference, and having a part cut out; and a stopper provided inside the housing and pressing the outer circumference of the second ring toward the center of the hole in response to a control signal.

The rotating device according to the embodiment includes a wear ring disposed inside the second ring; and a cover coupled to an upper portion of the housing.

In addition, a plurality of stoppers may be provided and disposed along the circumference of the hole, and at least one sensor for detecting a position of the incision of the second ring may be further provided inside the housing.

The rotation device according to the embodiment can be universally applied to general cylinder lifts, and when the rotation device according to the embodiment is used, the rod of the cylinder lift can be axially rotated without a large load.

In addition, the rotation device according to the embodiment is excellent in assembly, maintainability, and durability due to its structure.

1 is a perspective view of a rotating device according to an embodiment.

2 is an exploded perspective view of a rotating device according to an embodiment.

3 is a cross-sectional view of a rotating device according to an embodiment.

Figure 4 schematically shows the operating sequence of the rotating device according to the embodiment.

* Description of code *

100: rotation device

110: housing

120: geared motor

130: pinion

140: first ring

150: second ring

160: stopper

170: Wearing

180: cover

Hereinafter, with reference to the accompanying drawings, a rotation device according to an embodiment will be described in detail.

1 is a perspective view of a rotating device 100 (hereinafter referred to as 'rotating device 100') according to an embodiment, FIG. 2 is an exploded perspective view of the rotating device 100, and FIG. 3 is a view of the rotating device 100 it is a cross section

1 to 3, the rotating device 100 includes a housing 110, a geared motor 120, a pinion 130, a first ring 140, a second ring 150, and a stopper 160 ), and may additionally include a wear ring 170 and a cover 180.

The rotating device 100 is coupled to the front end of the cylinder lift A (or actuator) and functions to rotate (= rotate) the rod B in place.

The housing 110 is coupled to the tip of the cylinder lift A. The housing 110 includes a flat bottom 111 and a wall 112 of a predetermined height surrounding the bottom 111 .

The shape of the bottom 111 is not limited, but as an example, as shown in the drawing, it may be circular.

At the center of the floor 111, a hole 114 for accommodating the rod B of the cylinder lift A is formed. A raised portion 113 on which the first ring 140 and the second ring 150 are seated may be further formed around the hole 114 .

The geared motor 120 refers to a motor to which a reducer is coupled, and is provided inside the housing 110 . An output shaft of the geared motor 120 is parallel to an imaginary shaft passing through the center of the hole 114 .

A plurality of geared motors 120, 120'... along the circumference of the hole 114 may be provided at regular intervals.

The pinion 130 is coupled to the output shaft of the geared motor 120.

The first ring 140 is provided inside the housing 110 and surrounds the hole 114 . The first ring 140 may be seated on top of the raised portion 113 . For smooth rotation of the first ring 140, a plurality of rotation balls may be further provided on the lower and upper surfaces of the first ring 140.

A spur gear part 141 engaged with the pinion 130 is formed on the outer circumference of the first ring 140, and a ratchet gear part 142 (= wedge gear part) is formed on the inner circumference of the first ring 140.

The second ring 150 is disposed inside the first ring 140 . The second ring 150 is configured to have a larger upper and lower width than the first ring 140 . A ratchet gear part 151 [= wedge-shaped gear part] is formed on the outer circumference of the second ring 150.

The ratchet gear unit 151 of the second ring 150 is meshed with the ratchet gear unit 142 of the first ring 140 .

One point of the second ring 150 is cut, and thus a cutout 152 is formed in the second ring 150 . When one end and the other end of the second ring 150 come into contact, the diameter of the second ring 150 is reduced and adhered to the outer circumference of the rod (B).

The first ring 140 and the second ring 150 may be made of a metal material or a synthetic resin material. The second ring 150 is preferably made of a material having elasticity.

The stopper 160 is provided inside the housing 110, and by a control signal, the outer circumference of the second ring 150 (due to the upper and lower widths of the second ring 150, the upper or lower portion of the first ring 140) area exposed to the lower side] in the center direction of the hole 114.

The stopper 160 may be a mechanical element that indirectly presses the second ring 150 made of metal by generating a magnetic force, or may be a mechanical element that directly presses the second ring 150 physically, such as an actuator. may be

The stopper 160 momentarily presses the second ring 150 while the first ring 140 rotates, so that one end and the other end of the second ring 150 come into contact with each other. A description of the operation is supplemented below.

Meanwhile, a plurality of stoppers 160 are provided and disposed along the circumference of the hole 114, and at least one sensor (not shown) detects the position of the cutout 152 of the second ring 150 inside the housing 110. ) may be further provided. In this case, there is an effect that the stopper 160 can effectively pressurize the vicinity of the incision 152 (one end or the other end of the second ring 150).

On the other hand, a gear portion is formed on the outer circumference of the second ring 150 exposed to the upper or lower portion of the first ring 140, and the stopper 160 is replaced by geared motors having pinions engaged with the upper gear portion. may be In this case, the same effect as that of the stopper 160 can be achieved by reverse rotation of the geared motor.

Wear ring (Wear Ring) 170 is disposed inside the second ring (150). The wear ring 170 may be made of a material having high load capacity and wear resistance. The wear ring 170 serves to reduce friction between the rod B made of metal and the second ring 150 made of metal.

The cover 180 is coupled to the top of the housing 110 and closes the open top of the housing 110 .

The operation of the rotating device 100 will be briefly described.

Referring to FIG. 4 (a), when the first ring 140 is rotated clockwise by the geared motor 120 and the pinion 130, the ratchet gear unit 142 of the first ring 140 is It rides over the ratchet gear part 151 of the two rings 150 (in some sections, the second ring 150 may be rotated in conjunction with the first ring 140).

Referring to FIG. 4 (b), ① while the first ring 140 is rotated clockwise by the geared motor 120 and the pinion 130, a stopper (not shown) is operated, and the second ring When one end of 150 is momentarily pressed in the direction of a cylinder lift rod (not shown), the second ring 150 is in a stopped state.

Subsequently, ② when the first ring 140 is rotated and the ratchet gear part 142 of the first ring 140 and the ratchet gear part 151 of the second ring 150 are displaced from each other, the second ring ( 150) is connected to one end and the other end so that the overall diameter of the second ring 150 is reduced and the second ring 150 adheres to the outer circumference of the rod.

Subsequently, ③ the rotational force of the first ring 140 is transmitted to the rod through the second ring 150 having a reduced diameter, and the rod rotates (at this time, the stopper is restored to its original position).

The rotating device 100 described above can be universally applied to a general cylinder lift, and when using the rotating device 100, the rod B of the cylinder lift A can be axially rotated without a large load.

Various expressions (terms, visualized images, etc.) used when describing the embodiment(s) of the present disclosure (The Present Disclosure) are adopted as tools for conveying the essential technical idea of the present disclosure to readers in an easy-to-understand manner. it's just been

In addition, those of ordinary skill in the art can implement various modifications based on the embodiment (s) of the present disclosure, which have the same essential technical idea as the above embodiment (s) but are superficially different. Examples can be invented.

Therefore, the scope of rights of the present disclosure should not be limited by some expressions described in the 'Description of the Invention' and 'Drawings', and should be broadly interpreted based on the essential technical idea of the present disclosure.

Claims

A housing in the form of an enclosure with an open upper surface and a hole in the center;

a geared motor provided inside the housing and having an output shaft parallel to a central axis of the hole;

a pinion coupled to the output shaft;

a first ring provided inside the housing to surround the hole, having a spur gear part engaged with the pinion on an outer circumference thereof, and a ratchet gear part formed on an inner circumference thereof;

a second ring disposed inside the first ring, having a larger upper and lower width than the first ring, having a ratchet gear part formed on the outer circumference, and having a part cut out; and

A rotating device including a stopper provided inside the housing and pressing the outer circumference of the second ring toward the center of the hole by a control signal.
According to claim 1,

A rotating device further comprising a; wear ring disposed inside the second ring.
According to claim 1,

A rotating device further comprising a; cover coupled to an upper portion of the housing.
According to claim 1,

A plurality of stoppers are provided and disposed along the circumference of the hole;

Characterized in that, at least one sensor for detecting the position of the incision of the second ring is further provided inside the housing.