KR102108211B1 - Gantry crane - Google Patents

Abstract

The present invention relates to a gantry crane and, more specifically, to a gantry crane capable of easily changing the direction and position of a carrier. According to the present invention, the gantry crane comprises a horizontal support, a turntable part, a vertical support part, and a lower moving part, wherein the horizontal support includes a wire vertical driving part, and the turntable part includes a turn frame, a rotation driving means, an upper table, and a lower table.

Description

Gantry crane {GANTRY CRANE}

The present invention relates to a gantry crane, and more particularly, to a gantry crane having a structure capable of easily changing the direction and position of the carrier and maintaining the balance of the carrier when lifting or lowering the carrier.

In a conventional gantry crane, a girder is formed between vertical supports that serve as legs, and a general structure includes a driving body that vertically moves the carrier at a center or a movable position of the girder.

The crane of this structure has various limitations because it is designed considering only the structure that has to rely on the girders formed in the longitudinal direction of the vertical support and lifting the carrier, and one of them is that it is difficult to control the direction through rotation. Another difference is that it is difficult to balance the horizontal level when the carrier is attached.

In particular, the limitations are more pronounced when the direction of the rails needs to be taken into account, such as a carriage used for a tourist rail or a monorail, or if the rails need to be well maintained on a rail. In the case of monorail carriages, when 1 or 2 cars are used in combination, the front of the vehicle may need to face the other side, or the position of the rail to be seated often does not match the direction on the truck. In this case, rotational movement is inevitable, and it is very important to keep it horizontal when lifting or seating because it is a boarding facility. However, the conventional crane has a problem in that it is very difficult to balance and cannot control the direction when binding the carrier because the crane adopts a method of lifting from the upper center using the center of gravity after binding the carrier.

Therefore, facilities such as a tourist rail or a monorail have used a method of installing a separate rail for carrying a vehicle rather than using a crane.

In addition, the conventional large gantry crane relies on the support of the girder (Girder) to move the cargo up and down, so structurally there is a structural limitation in installing in a rather narrow place with a roof like a monorail platform.

Prior arts related to gantry cranes include Utility Model Registration No. 20-0456006, Patent Publication No. 10-2019-0033164, and Registration Patent No. 10-2010563.

KR 20-0456006 Y1 KR 10-2019-0033164 A KR 10-2010563 B1

The present invention has an object to provide a structure of a gantry crane that can freely control the horizontal rotation direction of the carrier to solve the conventional problems, and maintains the level of the carrier well and stably seats in a desired position. have.

The gantry crane of the present invention includes a horizontal support (1) horizontally formed on the top of the main body, a turntable part (2) connected via a wire to the front part of the horizontal support, and vertically downward to the left and right of the rear part of the horizontal support. It includes a connected vertical support (3), and the lower moving part (3) connected to the lower left and right vertical support,

The horizontal support (1) is for moving the vertical position of the carrier (V) via the turntable portion (2), including a wire up and down driving unit 11, the wire up and down driving unit 111 is rotated by the wire Winding and unwinding upper and lower wire rotation driving unit 111, a plurality of upper and lower wire guide portions 112, and a plurality of upper and lower wires 113 composed of a guide body 1121 and a wire wheel 1122 for preventing wire direction change and departure. Including,

The turntable part 2 is for left and right rotation of the carrier V, a turn frame 211 having a hollow circular frame shape in the center, and rotation driving means 212 for horizontal rotation of the lower table, and upper and lower wires An upper table 21 including a connecting portion 213, a lower table connected to the turn frame 211 and including a turn table 221 for rotating the center of the turn frame about an axis and a carrier connecting means 222 ( 22),

The lower moving part 3 is for the movement of the crane body, and the lower moving body 41 vertically connected to the lower end of the vertical support part 3 and including a plurality of driving rollers 211 at the lower end, and the driving roller ( It characterized in that it comprises a guide rail 42 for guiding the front and rear 211), and a front and rear driving unit 43 for providing power to the lower moving body (41).

In addition, the upper and lower wire rotation driving unit 111, the upper and lower wire rotating power unit 1111, the upper and lower wire rotating shaft 1112 formed to wind and unwind a plurality of wires, and the upper and lower wire rotating power unit 1111 and the upper and lower wires Characterized in that it consists of a power transmission unit 1114 for transmitting the rotational force between the rotating shaft 1112.

In addition, the upper and lower wire rotating shaft 1112 is further characterized in that it further comprises an upper and lower wire bobbin 1113 to prevent separation of the wire during rotation.

In addition, the upper and lower wire guide portion 112 is characterized in that it further comprises a height bracket (1124) for correcting the height difference between the left and right wires based on the rotation axis.

In addition, the turntable 221 is a circular plate-shaped member connected to the bottom of the turn frame 221, the middle plate 221, and is installed on the upper surface of the middle plate and connected to the inner circumferential surface of the turn frame 211 to be adhered from the side. Up and down consisting of a plurality of rotation departure prevention means (2212) including a rotating roller and a support bracket installed on the upper surface of the middle plate and an upper surface contact roller connected to the support bracket and rotating on the upper frame of the turn frame (211) It characterized in that it comprises a departure prevention means (2213).

In addition, the lower moving body 41 is characterized in that it further comprises a rack connection bracket 412 for preventing departure.

The gantry crane of the present invention can free the horizontal rotation direction of the carrier, and can maintain the horizontal balance of the carrier when the wire is wound and released, so that the carrier can be seated in the correct direction at the desired position.

Therefore, the gantry crane of the present invention can eliminate the inconvenience of having to manually adjust the center when the carrier is attached to the crane, and can eliminate the inconvenience of grabbing the rotational direction of the carrier with an operator or external equipment. .

In particular, when it is used for a tourist train or a monorail facility where the height of the platform differs depending on the ground clearance, there is no need to install a separate rail for carrying a vehicle, and it is a facility generated by not maintaining the direction and balance when loading a carriage or transportation facility. Can greatly reduce the damage.

In addition, unlike a large cantry crane that moves the carrier up and down by a girder (Birder), the gantry crane of the present invention moves the carrier up and down in a support structure protruding forward, such as a monorail facility in a facility such as a roofed platform. Provides a structure that is easy to install and use.

1 is a perspective view of one embodiment of the gantry crane of the present invention.
Figure 2 is a side view of one embodiment of the gantry crane of the present invention.
3 is a plan view of one embodiment of the gantry crane of the present invention.
Figure 4 is an exploded view of the horizontal support of the gantry crane of the present invention.
Figure 5 is a state diagram of the turntable portion of the gantry crane of the present invention.
Figure 6 is a state diagram of the turntable portion of the gantry crane of the present invention.
Figure 7 is an exploded view of the turntable portion of the gantry crane of the present invention.
8 is an exploded view of the lower moving part of the gantry crane of the present invention
9 to 13 is a state diagram of an embodiment of a method of using the gantry crane of the present invention.

The detailed contents for carrying out the present invention will be described with reference to the accompanying drawings.

The main form and configuration of the gantry crane of the present invention is a horizontal support (1) formed horizontally on the top of the main body as shown in Figs. 1 to 3, and a turntable (2) connected to the front of the horizontal support via a wire. ), A vertical support portion 2 vertically connected to the left and right of the rear portion of the horizontal support, and a lower moving portion 3 connected to the bottom of the left and right vertical supports.

The horizontal support (1) is a component for moving the vertical position of the carrier (V) via the turntable portion (2). 1 and 2, the front of the horizontal support 1 is formed to protrude from the main body and the rear part is connected to the vertical support 3 so that the turntable 2 can be positioned below the horizontal support 1. The carrier (V) is a comprehensive concept that means facilities that need to be seated or separated frequently for maintenance reasons, such as boarding devices such as railroads, monorails, and driving tracks, as well as heavy cargo that requires loading and unloading.

The horizontal support 1 includes a wire upper and lower driving unit 11 for raising and lowering the turntable unit 2 up and down using a wire, and the wire upper and lower driving unit 11 winds and releases the wire while winding and loosening the wire 113 It includes a top and bottom wire rotation drive unit 111 for changing the length of, a plurality of upper and lower wire guide portion 112 is formed at a position where the direction of the upper and lower wire 113 is switched, the lower end of the turntable portion (2) and It includes a plurality of upper and lower wires 113 to be connected. The upper and lower wire 113 is a concept encompassing various types of wires, such as various metals, wires made of synthetic resin, and chains.

Looking at the components of the wire up and down driving unit 11 in more detail with reference to FIG. 4, the up and down wire rotation driving unit 111 includes a top and bottom wire rotation power unit 1111 for wire rotation, such as a motor and an engine. The upper and lower wires formed as long as possible so as to be directly connected to the upper and lower wire rotating power units 1111 or rotated by receiving rotational force through various power transmission units 1114 such as sprockets, belts, and reducers. It includes a rotating shaft 1112, the upper and lower wire rotating shaft 1112 includes a plurality of upper and lower wire bobbin 1113 to guide the upper and lower wire 113 is wound and unwound. The illustrated upper and lower wire bobbin 1113 includes four to control two wires, left and right, but may be provided as many as necessary from two or more.

The upper and lower wire guide part 112 enables the mutual switching between the vertical direction and the horizontal direction and the mutual switching between the left and right directions in the front-rear direction when the upper and lower wires 113 are wound and released, and the upper and lower wires can be stably wound and released without departure. 113) is formed in a number of direction change position, the number of required number of the left and right ends of the horizontal support (1) in order to minimize the shaking of the turntable portion (2) is provided, as shown in Figure 4 A body 1121 and a wire wheel 1122 may be included, and a wire departure prevention bracket 1123 may be further included.

In particular, the guide body 1121 may further include a height bracket (1124), which is the diameter of the upper and lower wire bobbin (1113) as the wire is wound, the height difference is generated in the wire in the left and right directions, either side This is to compensate because there is a possibility that the wire of the wire may deviate from the guide or be guided unstablely because it is run at an angle rather than horizontal.

The turntable portion 2 is a component for left and right rotation of the carrier (V). As can be seen in Figures 5 to 7, a hollow circular frame-shaped turn frame 211 in the center, a rotation driving means 212 and an upper table 21 on which the upper and lower wire connecting portions 213 are formed, The lower table 22 which is connected to the upper table 21 by the same central axis and is connected to various carriers, wires, etc. in a downward direction and rotates horizontally as shown in FIG. 6 by the control of the rotation driving means 212. Includes.

Referring to FIG. 7 in more detail, the upper table 21 is formed with a turn frame 211 having a circular frame shape in the center. The frame is a lower table 22 via a turntable 221. It acts as a support to prevent the up and down and rotational deviation. The rotation drive means 212 is installed on the outer periphery of the turn frame 211, and includes a horizontal rotation drive motor 2121, a bracket 2122, and the like, to transmit the rotational force to the turntable 221, the sprocket, wire, It includes various rotational force transmission members 22111 such as a chain. The lower table 22 includes a turntable 221 and various carrier connecting means 222 such as a bracket for connecting with a carrier, and in particular, the turntable 221 can be connected below the turnframe 211. It includes a middle plate (2211) which is a circular plate-shaped member, and is provided with a plurality of rotational departure prevention means (2212) formed on the upper surface of the middle (2211) and consisting of side rollers connected to the inner circumferential surface of the turnframe (211), It includes a support bracket (2213) consisting of a support bracket installed on the upper surface of the middle plate (221) and an upper roller that is connected to the support bracket and rotates on the upper frame of the turn frame (211).

The vertical support 3 is a pillar supporting the gantry crane and is formed to be symmetrical left and right in consideration of the right and left balance. The illustrated embodiment is composed of four pillars in the form of a frame, but in addition, a number of frames may be added or configured in various forms, and if necessary, a reinforcement support 31 or a reinforcement beam 32 for reinforcement It may contain more.

The lower moving part 4 may be provided with various types of moving means adopted by a conventional gantry crane as a configuration for the movement of the crane body, but the embodiment of the present invention is the vertical as shown in FIG. A pair of lower movable bodies 41 vertically connected to the left and right sides of the support 3 and a guide rail 42 and the lower movable bodies installed parallel to the bottom surface to guide the front and rear movements of the lower movable body 41 ( 41) including a front and rear driving unit 43 to move back and forth, a lower end of the lower moving body 41 includes a plurality of driving rollers 411 that roll the upper surface of the guide rail, and if necessary, connects a rack to prevent departure. It may include a bracket 412. The front-rear driving unit 43 is installed vertically across the guide rail at the front or rear of the guide rail in order to evenly distribute power for movement between the front and rear driving devices 431, such as a motor and an engine. The front-rear drive shaft 432 directly or indirectly connected to the drive device 431 and the front-rear power composed of various members such as chains, sprockets or wires for transmitting the power of the front-rear drive shaft 434 to the lower frame 41 It includes a transfer member 433.

Power devices for driving of the present invention may utilize various known rotating power devices such as engines and motors, but preferably, it is recommended to prevent position errors due to gravity and inertia by using a brake type motor.

9 to 13 are views for referring to the use state in consideration of the features of the gantry crane and sequentially show the procedure from P-1 to P-6. The illustrated use example is that the gantry crane is applied to the rail vehicle. Looking at the use example, it is appropriate to connect the turntable unit 2 to the stage (P-1) in which the carrier V is received at the station and the carrier V. Moving to the position (P-2), connecting the carrier (V) to the upper and lower wires 113 (P-3), removing the carrier (V) from the truck and lifting (P-4), Rotating the carrier (V) 90 degrees by the turntable unit 2 (P-5), rotating the carrier (V) 180 degrees by the turntable unit (P-6) (P-6), the lower moving unit ( Step 4) moving the gantry crane forward (P-7), loading the vehicle (V) onto the truck (P-8), completing the loading (P-9) and returning after completion (P-10) is mentioned as an example of use.

 One embodiment of the gantry crane body of the present invention is expressed in the form of a frame as a whole, but may be implemented by modifying in various forms that can be applied to practice the technical idea of the present invention, such as a plate-shaped box.

1: horizontal support 11: wire up and down drive
111: up and down wire rotation driving unit 1111: up and down wire rotation power unit
1112: upper and lower wire rotating shaft 1113: upper and lower wire bobbin
1114: power transmission section 112: upper and lower wire guide section
1121: guide body 1122: wire wheel
1123: Wire breakout prevention bracket 1124: Height bracket
113: upper and lower wire
2: Turntable section 21: Upper table
211: turn frame 212: rotation drive means
2121: Horizontal rotation drive motor 2122: Bracket
22: lower table 221: turntable
2211: middle plate 22111: rotational force transmission member
2212: rotation departure prevention means 2213: up and down departure prevention means
222: vehicle connecting means
3: vertical support 31: reinforcement support
32: reinforcement beam
4: lower moving part 41: lower moving body
411: drive roller 412: rack connection bracket
42: guide rail 43: front and rear drive
431: front and rear drive unit 432: front and rear drive shaft
433: front and rear power transmission member

Claims (6)

A horizontal support formed horizontally at the top of the main body, a turntable part connected via a wire to the front part of the horizontal support, a vertical support connected vertically to the left and right of the rear part of the horizontal support, and connected to the bottom of the left and right vertical supports It includes a lower moving part,
The horizontal support is for moving the vertical position of the carrier through the turntable portion, and includes a wire upper and lower driving portion, wherein the wire upper and lower driving portions rotate and unwind the wire by rotation, and prevent wire shifting and departure. A plurality of upper and lower wire guide parts composed of a guide body and a wire wheel, and a plurality of upper and lower wires,
The turntable unit is for left and right rotation of the carrier, a hollow circular frame-shaped turnframe in the center, a rotation driving means for horizontal rotation of the lower table, and an upper table including upper and lower wire connections, and connection with the turnframe It comprises a lower table including a turntable and a carrier connecting means for rotating the center of the turn frame as an axis,
The lower moving part is for the movement of the crane body, the lower moving body vertically connected to the lower end of the vertical support and including a plurality of driving rollers at the bottom, a guide rail for guiding the driving roller forward and backward, and the lower moving body Gantry crane, characterized in that it comprises a front and rear drive for providing power.
According to claim 1, The upper and lower wire rotation drive unit for transmitting the rotational force between the upper and lower wire rotating shaft, the upper and lower wire rotating shaft formed long to wind and unwind a plurality of wires, and the upper and lower wire rotating power unit and the upper and lower wire rotating shaft. Gantry crane characterized by consisting of a power transmission unit
The gantry crane according to claim 2, wherein the upper and lower wire rotation shafts further include an upper and lower wire bobbin to prevent separation of the wire when rotating.
The gantry crane of claim 3, wherein the upper and lower wire guide parts further include a height bracket for correcting a difference in height between the left and right wires based on the rotation axis.
The plurality of rotations of claim 1, wherein the turntable includes a middle plate which is a circular plate-shaped member connected to the bottom of the turn frame, and a roller installed on an upper surface of the middle plate and connected to an inner circumferential surface of the turnframe to rotate in close contact on the side. Gantry crane, characterized in that it comprises a departure prevention means and a support bracket which is installed on the upper surface of the middle plate and an upper and lower departure prevention means which is connected to the support bracket and is rotated on an upper frame of the turn frame and rotates.
The gantry crane of claim 1, wherein the lower moving body further comprises a rack connection bracket for preventing departure.

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