KR20200026489A - Single motor type transporting apparatus - Google Patents

Abstract

The present invention relates to a single motor-type cargo transporting apparatus. According to one embodiment of the present invention, the single motor-type cargo transporting apparatus can comprise: a shuttle which is movable in both directions along a center rail; and a satellite which is constituted to be engaged with the shuttle or to be separated from the shuttle, and moves to one of a plurality of cargo loading rails, thereby loading a cargo. The satellite can comprise: an upper plate on which the cargo is loaded; a case which is installed to be apart from the upper plate, in which a plurality of rotatable rear wheel members are mounted on a lower side; a single motor which is arranged inside the case to provide power; a rotary shaft which is mounted on one side of the motor to deliver power; a moving means which is engaged with the rotary shaft to move the satellite on one of the plurality of cargo loading rails; an elevating means which is engaged with the rotary shaft to elevate or lower the upper plate; and a control means for controlling at least one of the moving means and the elevating means. The present invention aims to provide the single motor-type cargo transporting apparatus which is able to reduce the weight of the cargo transporting apparatus and at the same time cut manufacturing costs.

Description

SINGLE MOTOR TYPE TRANSPORTING APPARATUS}

The present invention relates to a single motor cargo transfer device, and more specifically, to share the power coming from a single motor to move the satellite at the same time can lift the cargo, in particular through the common use of the motor satellite The present invention relates to a single motor cargo transfer apparatus that can reduce the weight of the cargo transfer apparatus and reduce the manufacturing cost by reducing the number of related parts for lifting and lowering the cargo.

In general, logistics refers to product flow from producer to consumer in short of physical distribution. More specifically, it may include all processes of transporting, unloading, storing, and packing the produced goods and distribution of materials such as distribution processing or transport infrastructure, and may also be applied to the concept of distributing information such as an information network.

In the warehouse or freight warehouse for the temporary storage of cargo, a cargo transport device is used to temporarily or long-term storage or loading of various foods, beverages and clothes, household appliances, miscellaneous goods, etc. produced at the factory or production site. These freight transport devices are rapidly developing in response to the increasing demand for logistics, and the freight industry has various ways to efficiently receive, load, and ship cargoes from the mere logistics storage. Is being introduced.

However, since the conventional freight transporter detects the presence of a freight pallet by following a sensor point formed at a specific position of the freight pallet, for example, the bottom of the freight pallet, the height of the freight pallet is not uniform. In this case, there was a problem that an error may occur in loading cargo by the cargo transport device.

In addition, the structure of the conventional freight transport device is excessively heavy due to various components and complex structure, the weight of the freight transport device, parts costs, etc., so that the weight, cost, maintenance to achieve the purpose of transporting or loading the cargo In other words, a lot of money is consumed in maintenance.

Therefore, there is a growing need in the art for a freight transfer device that can significantly reduce manufacturing costs by further improving the accuracy and reliability of the freight transfer device and simplifying the components of the freight transfer device.

The present invention is to solve the above problems, the present invention is to share the power from a single motor to move the satellite at the same time to move the cargo up and down, in particular, the movement of the satellite and the cargo through the common use of the motor It is an object of the present invention to provide a single motorized freight transfer device that can reduce the weight of the freight transfer device by reducing the number of related parts to be raised and lowered and at the same time reduce the manufacturing cost.

In addition, an object of the present invention is to provide a single motor-type cargo transfer device that can increase the accuracy for loading the cargo by increasing the width of the detection area of the cargo pallet, and at the same time improve the efficiency of the cargo transfer device.

In addition, the present invention is to provide a single motor-type cargo transfer device that can detect the damage or damage of the rail for the movement of the cargo transfer device quickly and notify the manager, to smoothly operate the cargo transfer device to run safely. The purpose.

The technical problems of the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following descriptions.

In order to solve the above technical problem, a single motor cargo transfer device according to an embodiment of the present invention includes a shuttle capable of moving in both directions along a center rail; And a satellite configured to be combined with the shuttle or separated from the shuttle, wherein the satellite moves to one of the cargo loading rails and loads the cargo, wherein the satellite is configured to load the cargo. Tops; A case installed to be spaced apart from the upper plate and having a plurality of rotatable rear wheel members mounted on an inner lower side thereof; A single motor disposed inside the case to provide power; A rotating shaft mounted on one side of the motor to transmit power; Moving means coupled to the rotary shaft to move the satellite on any one of the plurality of cargo loading rails; Elevating means coupled with the rotary shaft to elevate the upper plate; And control means for controlling at least one of the moving means and the elevating means.

In addition, preferably, the movement means is coupled to at least one region of the rotating shaft, the timing pulley for driving the power or cut off power from the motor; A first shaft which receives power from the timing pulley to rotate the plurality of front wheel members mounted at both ends; And a timing belt interconnecting the timing pulley and the first shaft.

In addition, preferably, the elevating means is coupled to the upper plate to support the upper plate; A lower link having one end refracted and coupled to the upper link and the other end coupled to the case; An interlocking link reciprocating to bend or straighten the refracted portions of the upper link and the lower link; A second shaft on which one end of the interlocking link is mounted and rotated at an angle such that the mounted linkage reciprocates; And a lifting gear configured to receive power from the motor to drive the second shaft or to block power.

Further, preferably, the lifting means may further include a fixed brake coupled to the second shaft to limit the movement of the linkage link.

In addition, preferably, it may further include a camera installed in front of the satellite, for photographing any one of the cargo loading rail of the plurality of cargo loading rail.

Also preferably, the control means may be further configured to detect the pallet from the rail image taken by the camera.

In addition, preferably, the sensor may further include a sensor installed on a lower surface of the satellite to determine whether at least one of the center rail and the cargo loading rail is damaged.

Further, preferably, the control means may control the driving of the motor so that the power provided to the moving means and the power provided to the elevating means are different.

According to the single motor cargo transfer device according to an embodiment of the present invention, by sharing the power from a single motor to move the satellite at the same time can lift the cargo, in particular, the movement of the satellite through the common use of the motor By reducing the number of parts involved in loading and unloading the cargo, the weight of the cargo conveyer can be reduced while manufacturing costs can be reduced.

In addition, according to the single motor-type cargo transport apparatus according to an embodiment of the present invention, by increasing the width of the detection area of the cargo pallet, it is possible to increase the accuracy for loading the cargo and at the same time improve the efficiency of the cargo transport apparatus.

In addition, the single motor-type cargo transfer device according to an embodiment of the present invention to quickly detect the damage or damage of the rail for moving the cargo transfer device to notify the manager, to smoothly operate the cargo transfer device to run safely Can be.

BRIEF DESCRIPTION OF THE DRAWINGS In order to better understand the drawings cited in the detailed description of the invention, a brief description of each drawing is provided.
Figure 1a shows a state of use of a single motorized freight transport apparatus 1000 according to an embodiment of the present invention.
1B shows a perspective view of a single motorized cargo transfer device 1000 in accordance with one embodiment of the present invention.
2 shows a perspective view of the satellite 200 according to an embodiment of the present invention.
3A and 3B show cross-sectional views of satellite 200 in accordance with one embodiment of the present invention.
4 shows a conventional freight transport apparatus 1.
5 illustrates a state of use of the satellite 200 according to an embodiment of the present invention.
6 shows a state of use of a single motorized cargo transfer device 1000 according to an embodiment of the present invention.

Hereinafter, embodiments according to the present invention will be described with reference to the accompanying drawings. In adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are assigned to the same components as much as possible even though they are shown in different drawings. In addition, in describing the embodiments of the present invention, if it is determined that the detailed description of the related well-known configuration or function interferes with the understanding of the embodiments of the present invention, the detailed description thereof will be omitted. In addition, embodiments of the present invention will be described below, but the technical idea of the present invention is not limited thereto and may be variously modified and implemented by those skilled in the art.

Throughout the specification, when a part is "connected" to another part, it includes not only "directly connected" but also "indirectly connected" with another element in between. . Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, except to exclude other components unless specifically stated otherwise. In addition, in describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only for distinguishing the components from other components, and the nature, order or order of the components are not limited by the terms.

Figure 1a shows a state of use of a single motor-type cargo transport apparatus 1000 according to an embodiment of the present invention, Figure 1b is a perspective view of a single motor-type cargo transport apparatus 1000 according to an embodiment of the present invention Illustrated.

1A and 1B, a single motorized freight transport apparatus 1000 according to an embodiment of the present invention may be separated from a shuttle 100 and a shuttle 100 when cargo is loaded or incorporated into a satellite ( satellite 200).

Shuttle 100 is provided with a means such as a wheel on the lower side can move in both directions along the center rail (R). For example, the shuttle 100 may stop at the position of the loading rail L for loading the cargo F while traveling along the center rail R formed in the longitudinal direction. That is, as shown in Figure 1a, the center rail (R) formed in the longitudinal direction and the plurality of cargo loading rails (L) formed in the transverse direction for loading the cargo (F) may be implemented orthogonal to each other, Shuttle 100 may be stopped at the position of the center rail (R) to cross the load loading rail (L) to load the cargo (F).

The satellite 200 is configured to be coupled to the shuttle 100 or separated from the shuttle 100 at the time of loading the cargo, and move to any one of the plurality of cargo loading rails L to the cargo loading rail L. (F) can be loaded. Specifically, the satellite 200 loaded with the cargo (F) is coupled to the shuttle 100 to move along the center rail (R) and then run along the cargo loading rail (L) for unloading the cargo (F) It can be completely separated from the shuttle 100 so that the separated satellite 200 can be stopped along to move the cargo loading rail (L) at the same time to unload the cargo (F). On the other hand, the detailed internal structure of the satellite 200 will be described in more detail below.

2 shows a perspective view of the satellite 200 according to an embodiment of the present invention.

Referring to FIG. 2, the satellite 200 according to an embodiment of the present invention includes a top plate 210, a case 220, a motor 230, a rotation shaft 240, a moving means, a lifting means, and a control means 270. It can be composed of).

The upper plate 210 may load the cargo (F) at the top. For example, the upper plate 210 may be implemented in a rectangular shape in which the loading load of the cargo (F) is evenly distributed and absorbed as a whole, thereby more stably supporting the loaded cargo (F). However, the embodiment of the present invention is not limited thereto, and the upper plate 210 having various shapes for supporting the loaded cargo F may be formed.

The case 220 may be installed to be spaced apart from the upper plate 210, and a plurality of rotatable rear wheel members 212 and 212 ′ may be mounted at an inner lower side thereof. For example, the case 220 is a member for protecting components embedded from the outside by embedding respective components necessary for the satellite 200, and is formed to be fitted and coupled to at least one region of the shuttle 100. Can be. In addition, for example, the upper plate 210 is disposed on the upper portion of the case 220, a plurality of rear wheel members (212, 212 ') protrudingly formed and rotated at the rear end of the lower, cargo loading rail (L) The satellite 200 may be moved on the screen.

The motor 230 may be disposed inside the case 220 to provide power to the moving means and / or the elevating means. For example, the motor 230 may be implemented as a single motor 230 that generates rotational power, and may be driven or stopped by a control signal of the control means 270. In addition, by providing the power for the movement of the satellite 200 and the power for loading the cargo (F) to the cargo loading rail (L) as a single motor 230, a single motor type by minimizing the number of related parts It is possible to reduce the total weight of the cargo transport device 1000 and at the same time reduce the manufacturing cost, which is in contrast to the conventional cargo transport device having a motor for movement and a motor for lifting.

The rotary shaft 240 may be mounted on one side of the motor 230 to transmit power provided from the motor 230 to the moving means and / or the lifting means. For example, the rotation shaft 240 may be coupled to one side of the motor 230 to be rotatably disposed in the forward and / or reverse direction by the power of the motor 230, and in at least one region of the rotation shaft 240. The components for moving the satellite 200 and the components for loading the cargo F may be installed to be concentric.

The moving unit may be coupled to the rotary shaft 240 to move the satellite 200 on any one of the plurality of cargo loading rails (L). More specifically, the moving means is coupled to at least one region of the rotary shaft 240 is driven by the drive from the rotary shaft 240 to drive rotation in the forward and / or reverse direction in accordance with the drive of the motor 230 or the rotary shaft 240 A first shaft installed at a front end of the lower part of the case 220 to face the timing pulley 251 that cuts off the power transmitted from the second wheel and the rear wheel members 212 and 212 'positioned at the lower end of the case 220. 252 and a timing belt 254 that interconnects the timing pulley 251 and the first shaft 252, the first shaft 252 being the timing pulley 251 through the timing belt 254. Power is transmitted from the plurality of front wheel members 253 and 253 'mounted on both ends of the first shaft 252 to rotate. In this case, a part of the first shaft 252 that is connected to the timing belt 254 corresponding to the timing pulley 251 to drive the first shaft 252 in rotation (eg, a gear wheel, Pulleys, etc.) may be formed.

The lifting means may be coupled to the rotary shaft 240 to raise and lower the upper plate 210 of the satellite 200 loaded with the cargo (F) in the vertical direction. More specifically, the elevating means is coupled to at least one region of the rotary shaft 240 is driven by receiving power from the rotary shaft 240 to drive rotation in the forward and / or reverse direction in accordance with the drive of the motor 230 or the rotary shaft 240 And a second shaft 264 that rotates 90 degrees clockwise and / or counterclockwise by the driving of the elevating gear 265. In addition, the elevating means is one end is mounted to the second shaft 264, the linkage link 263 and the upper plate (reciprocally moving to the front and / or rear of the case 220 in accordance with the rotation of the second shaft 264, An upper link 261 coupled to the upper plate 210 to support the upper plate 210, and one end is refracted and coupled to the upper link 261, and the other end is a lower link 262 coupled to the case 220. The linkage link 263 bends or straightens the refracted portions of the upper link 261 and the lower link 262 according to the operation of the second shaft 264 that is rotated by receiving power from the elevating gear 265. By reciprocating, the upper plate 210 of the satellite 200 on which the cargo F is loaded can be easily lifted up and down. In addition, the elevating means may further include a fixed brake 266 coupled to one side of the second shaft 264, and may limit the movement of the linkage link 263 by the fixed brake 266. .

The control means 270 may control at least one of the moving means and the lifting means. More specifically, the control means 270 may be coupled to one side of the motor 230 to selectively provide the power supplied from the motor 230 to at least one of the moving means and / or the lifting means. For example, the control means 270 controls to transmit the power supplied from the motor 230 to the moving means, so that the satellite 200 on which the cargo F is loaded is at least one of the plurality of cargo loading rails L. FIG. The vehicle may be driven along one cargo loading rail L, or may be controlled to be able to be combined with the shuttle 100 by returning the satellite 200 to a position where the shuttle 100 is stopped.

In other words, each of the timing pulley 251 and the elevating gear 265 may be provided with a clutch and may be moved by selectively driving each clutch by the control means 270. Only the means may be activated, only the lifting means may be activated, both the moving means and the lifting means may be activated, or both the moving means and the lifting means may be deactivated.

In addition, in another embodiment of the present invention, the control means 270 controls to transfer the power supplied from the motor 230 to the lifting means, thereby at least one of the cargo loading rail (L) of the cargo loading rail ( The upper plate 210 of the satellite 200 stopped at L) is controlled to be elevated in the upper direction to unload the cargo F loaded on the upper plate 210 to one region of the cargo loading rail L, or the upper plate. The upper plate 210 may be controlled to be seated on the upper portion of the case 220 by controlling the 210 to descend in the downward direction. The lifting / lowering operation of the upper plate 210 by the lifting means will be described in more detail below.

In addition, in one embodiment of the present invention, the control means 270 may control the driving of the motor 230 so that the power provided from the motor 230 to the moving means and the power provided to the elevating means are different. That is, the control means 270 may output the rotational speed of the rotary shaft 240 for controlling the moving means of the satellite 200 and the rotational speed of the rotary shaft 240 for controlling the lifting means at different values, More preferably, the rotational speed of the rotary shaft 240 for controlling the lifting means can be controlled to output a value lower than the rotational speed of the rotary shaft 240 for controlling the moving means. For reference, the control means 270 may be implemented as a processor, a micro-processor, a controller, a micro-controller, or the like.

3A and 3B illustrate a cross-sectional view of the satellite 200 according to an embodiment of the present invention. Specifically, FIG. 3A illustrates a top plate by lifting means of the satellite 200 according to an embodiment of the present invention. An example of the lowering operation of the 210 is shown, Figure 3b illustratively shows the lifting operation of the upper plate 210 by the lifting means of the satellite 200 according to an embodiment of the present invention.

1A to 3B are referred to by the same terminology and reference numerals, and reference will be made to the description of FIGS. 1A to 2 above to avoid repeated description.

3A and 3B, the upper link 261, the lower link 262, and the linkage link 263 are provided to lift the upper plate 210, and the stable lowering operation of the upper plate 210 is performed. In order to be installed in the lower portion of the upper plate (210). Here, at one point where the upper link 261 and the lower link 262 are adjacently coupled, one end of the interlock link 263 is coupled together, and the other end of the interlock link 263 is connected to the front of the satellite 200. And / or the second shaft 264 may be coupled to reciprocate backwards. That is, the second shaft 264 rotates at a predetermined angle (eg, 90 degrees) in the clockwise and / or counterclockwise direction by the power transmitted from the motor 230 and the lifting gear 265. By moving the linkage link 263 coupled to the shaft 264 and bending or unfolding the combined portion of the upper link 261 and the lower link 262, the upper plate 210 can be raised and lowered.

That is, the upper link 261 and the lower link 262 are controlled by controlling the second shaft 264 to rotate 90 degrees counterclockwise by the power transmitted from the motor 230 and the lifting gear 265 by the control means. By forming each other to be folded, the upper plate 210 can realize the lowered state seated on the upper portion of the case 220 (see, for example, Figure 3a), or the second shaft 264 driven rotationally again clockwise By rotating the upper link 261 and the lower link 262 in the folded state to be spaced apart from each other by controlling the rotation to 90 degrees, the upper plate 210 can implement the elevated state spaced apart from the upper portion of the case 220 (eg For example, see FIG. 3B). At this time, one end of the second shaft 264 is provided with a fixed brake 266 for limiting the movement of the linkage link 263, by holding and supporting the upper plate 210 in the elevated state, the effect of shaking or vibration By minimizing the stability of the satellite 200 can be improved. For reference, although not explicitly shown in FIGS. 2 to 3B, according to a further embodiment of the present invention, the brake device may additionally be applied to the moving means.

4 shows a conventional freight transport apparatus 1, and FIG. 5 shows a state of use of the satellite 200 according to an embodiment of the present invention.

First, as shown in FIG. 4, the conventional cargo transport apparatus 1 senses a pallet located in front of the cargo transport apparatus 1 through a sensor (for example, a beam type optical sensor) mounted in front. By doing so, a method of grasping the object and / or the cargo F existing on the cargo loading rail L was used. However, the conventional cargo transfer device 1 has a problem that the dead zone of the sensor that the sensor point for detecting the object does not reach the pallet or the cargo (F) in accordance with the installation angle of the sensor must occur. That is, when the height of the cargo pallet is not uniform, there is a problem that an error may occur in loading the cargo by the cargo transport device 1, the actual pallet is present in the front as illustrated in FIG. Despite this, the dead zone of the sensor is so large that it does not detect the existing palette properly.

In order to solve this problem, as shown in FIG. 5, according to the satellite 200 according to an embodiment of the present invention, any one of a plurality of cargo loading rails L is provided in front of the satellite 200. Camera 281 for photographing the cargo loading rail (L) of the can be installed, it is possible to detect the pallet from the image of the rail obtained by the mounted camera 281 (for example, the corresponding cargo loading rail The outermost pallet of (L) can be detected).

That is, by transferring the image acquired through the camera 281 to the control means 270 to detect the pallet and / or cargo (F) located in front of the satellite 200 extensively, the transfer of cargo (F) and And / or improve the accuracy and reliability of loading.

In this regard, according to a further embodiment of the present invention, the front of the satellite 200 may further include a predetermined optical sensor (not shown) in addition to the camera 281, the control means 270 is an optical sensor On the basis of the time when the light emitted from the pallet is reflected by the pallet, it is possible to determine where the pallet is detected on the cargo loading rail (L), thereby preventing loading accidents. In addition, more precise loading can be achieved.

For example, the control device 270 has been instructed to load the cargo in the innermost space of the specific cargo loading rail (L), the camera installed in front of the satellite ( 281) and if the pallet is detected in the middle area of the cargo loading rail (L) through the optical sensor, the cargo transport device 1000 is determined in advance to prevent the loading accident It may be implemented to display a signal (eg, a beep, etc.) to the user (or administrator).

Further, in another embodiment of the present invention, the control means 270 detects a plurality of pallets or cargo F loaded on the cargo loading rail L based on the image acquired by the camera 281. At the same time, it can be controlled to sequentially load the pallet or the cargo (F) in the direction of the center rail (R) to cross the corresponding cargo loading rail (L) from the outside of the cargo loading rail (L).

6 shows a state of use of a single motorized cargo transfer device 1000 according to an embodiment of the present invention.

Referring to FIG. 6, a sensor 282 that determines whether at least one of a center rail R and a cargo loading rail L is damaged in a lower portion of the single motor cargo transport apparatus 1000 according to an exemplary embodiment of the present invention. ) May be provided. More preferably, the sensor 282 may be mounted under the satellite 200, and may transmit the state of the rail detected by the sensor 282 to the control means 270. That is, the sensor 282 easily detects damage or breakage of a rail for moving the single motor type cargo transfer device 1000, so that maintenance can be performed quickly. The efficiency can be maximized.

As described above, according to the single motor-type cargo transport apparatus 1000 according to an embodiment of the present invention, by sharing the power from the single motor 230 to move the satellite 200 at the same time cargo (F) Can reduce the weight of the cargo transfer device by reducing the number of moving parts of the satellite 200 and the number of related parts to raise and lower the cargo (F) through the common use of the motor 230 You can save money.

In addition, according to the single motor-type cargo transport apparatus 1000 according to an embodiment of the present invention, by increasing the width of the detection area of the cargo pallet (F), while increasing the accuracy for loading the cargo (F) at the same time the cargo transport apparatus Can improve the efficiency.

In addition, the single motor-type cargo transport apparatus 1000 according to an embodiment of the present invention to quickly detect the damage or damage of the rail for moving the cargo transport device to notify the manager, to facilitate the cargo transport device You can drive safely.

As described above, optimal embodiments have been disclosed in the drawings and the specification. Although specific terms have been used herein, they are used only for the purpose of describing the present invention and are not intended to limit the scope of the invention as defined in the claims or the claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

1000: Single Motor Cargo Transfer Unit 100: shuttle 200: satellite 210: tops 220: case 221, 221 ': rear wheel member 230: motor 240: axis of rotation 251: timing pulley 252: first shaft 253, 253 ': front wheel member 254: timing belt 261: upper link 262: lower link 263: interlocking link 264: second shaft 265: lifting gear 266: fixed brake 270 control means 281: camera 282: sensor R: center rail L: cargo loading rail F: cargo

Claims (8)

As a single motor cargo transfer device 1000,
A shuttle 100 movable in both directions along the center rail R; And
A satellite configured to be incorporated in the shuttle 100 or separated from the shuttle 100 to move to any one cargo loading rail L of the plurality of cargo loading rails L to load cargo F. (200),
The satellite 200,
Top plate 210 for loading the cargo (F);
A case 220 installed to be spaced apart from the upper plate 210, and having a plurality of rotatable rear wheel members 221 and 221 ′ mounted therein;
A single motor 230 disposed inside the case 220 to provide power;
A rotating shaft 240 mounted to one side of the motor 230 to transmit power;
A moving unit coupled to the rotary shaft 240 to move the satellite 200 on any one of the plurality of cargo loading rails;
Lifting means combined with the rotary shaft 240 for lifting the upper plate 210; And
A control means 270 for controlling at least one of said moving means and said lifting means,
Single motorized cargo transport (1000). The method of claim 1,
The means for moving,
A timing pulley 251 coupled to at least one region of the rotation shaft 240 to drive or block power by receiving power from the motor 230;
A first shaft 252 which receives power from the timing pulley 251 and rotates the plurality of front wheel members 253 and 253 'mounted at both ends; And
A timing belt 254 interconnecting the timing pulley 251 and the first shaft 252,
Single motor cargo transfer unit (1000). The method of claim 1,
The lifting means,
An upper link 261 coupled to the upper plate 210 to support the upper plate 210;
A lower link 262 having one end refracted and coupled to the upper link 261 and the other end coupled to the case 220;
An interlocking link 263 reciprocating to bend or straighten the refracted portions of the upper link 261 and the lower link 262;
A second shaft 264 on which one end of the linkage link 263 is mounted and rotated at an angle so that the mounted linkage link 263 reciprocates; And
Lifting gear 265 for receiving power from the motor 230 to drive the second shaft 264 or to cut off the power,
Single motor cargo transfer unit (1000). The method of claim 3, wherein
The lifting means further includes a fixed brake 266 coupled to the second shaft 264 to limit movement of the linkage link 263.
Single motor cargo transfer unit (1000). The method of claim 1,
It is installed in front of the satellite 200, further comprising a camera 281 for photographing any one of the cargo loading rail (L) of the cargo loading rail (L),
Single motor cargo transfer unit (1000). The method of claim 5, wherein
The control means 270 is further configured to detect a pallet from the rail image photographed by the camera 281,
Single motor cargo transfer unit (1000). The method of claim 1,
It is installed on the lower surface of the satellite 200, further comprising a sensor 282 that determines whether at least one of the center rail (R) and the load loading rail (L),
Single motor cargo transfer unit (1000). The method of claim 1,
The control means 270 controls the driving of the motor 230 so that the power provided to the moving means and the power provided to the elevating means are different from each other.
Single motor cargo transfer unit (1000).

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