KR101685324B1 - Marine Mobile Lift - Google Patents

Abstract

A marine mobile lift is disclosed. The marine mobile lift comprises: a hoist winch in which a wire rope is wound in multiple layers; and a rotation guide roller rotated at a predetermined angle in accordance with a change in a layer in which the wire rope is wound in the hoist winch while guiding the wire rope which is wound in or disengaged from the hoist winch.

Description

Marine Mobile Lift

The present invention relates to a marine mobile lift.

Generally, a yacht lifting device is installed in a fishing pier, a coast, a dock (election), etc. (hereinafter collectively referred to as a "dock") to lift a ship to the sea or to transport a sea ship to a breakwater or land, And it is used to prevent damage and sinking by evacuating the ship to safety zone even in bad weather.

Conventional prior art related to such a yacht lifting device is disclosed in Korean Registered Patent No. 10-0503918 as 'Fixed Fishing Vessel Yang' and Korean Registered Patent No. 10-0853291 'Cranes'. However, since the above-mentioned prior art is limited to the lifting work of small and light small ships in the cantilever manner, it is not possible to raise the vessels of the small and medium-sized vessels, and it is difficult to lift high-grade vessels and yachts having complicated structures, And there is a high risk of damage and breakage of the ship due to vibration or shaking.

In order to solve this problem, Korean Patent No. 10-1068012 has been developed, in which a horizontal member is coupled to an upper portion of a vertical member of a structure, a wheel is provided at a bottom portion, and a ship is placed on a band connected to an upper hoist The ship is shaken or causes weaving phenomenon, and there is a high risk that the ship will collide unstably and lean sideways, or collide or lose its center. In addition, there was a problem that the ship was seriously damaged and damaged due to typhoon or strong wind. Particularly, since the bottom surface of the ship is streamlined (curved), there is a problem that the band is likely to be released to the hull and the stability is poor.

In order to solve the above-mentioned problem, Korean Patent No. 10-1304038 (Yacht lifting device) has been developed. Such a conventional yacht lifting device includes a main body frame which stands upright on both sides of a ship and supports a load and has wheels on its bottom surface, lifting means for lifting and lowering a band wound on the ship at the upper portion of the main frame, And is provided to transport and lift the ship to a certain place. A hull fastening means for supporting the hull of the ship is provided on the lower portion of the main frame of the yacht lifting device. The hull fastening means comprises a first cylinder, a second cylinder, A tip end of the first cylinder is provided with an access hole for contacting the hull and a second cylinder is provided between the main body frame and the first cylinder so as to adjust the angle of the first cylinder. Therefore, by supporting the bottom of the ship lifted by the yacht lifting device by the hull fixing means, it is possible to prevent the ship sitting on the band of the lifting means from being shaken, provide a sense of security, and safely carry and lift.

However, in the conventional yacht lifting device, in addition to the means for lifting the ship, a pair of hull fastening means composed of a plurality of expensive parts must be provided on both sides of the lower part of the main body in order to prevent the ship from shaking. There is a problem that it is greatly increased. Another problem with the conventional yacht lifting device is that it is impossible to accurately check whether the lifting equipment is overloaded because the yacht is operated by the driver's senses when the ship is lifted by the manual operation equipment, .

In addition, in the above-described conventional yacht lifting device, a pair of lifting belts for lifting a ship is provided. Such a pair of lifting bands is closely attached to the foreign body and the stern part of the ship along a streamline shape to support the front and rear sides of the lower part of the ship. However, the pair of lifting bands must open or close the gap between the lifting bands according to the size of the ship. Conventional yacht lifting devices do not have separate means for adjusting the distance between the lifting bands, It was not suitable for lifting the ship of the kind. In the conventional yacht lifting device, when the ship is lifted, the band is closely attached to the lower part of the ship along a streamline shape, and the wire rope connected to the band is pulled obliquely, thereby twisting the wire rope. When the wire rope is twisted and the weight of the ship is lifted repeatedly, fatigue is added to the wire rope, thereby causing damage to the wire rope.

Korean Patent No. 10-0503918 Korean Patent No. 10-0853291 Korean Patent No. 10-1068012 Korean Patent No. 10-1304038

The present invention is to provide a marine mobile lift in which a wire rope wound around a hoist winch is wound or unwound and a roller for guiding a wire rope is applied in accordance with a change in the number of wire ropes wound on the hoist winch.

According to an aspect of the invention, a marine mobile lift is disclosed.

The marine mobile lift according to the embodiment of the present invention is characterized in that while the wire rope guides the hoist winch wound in multiple layers and the wire rope wound or unwound on the hoist winch, And a rotation guide roller that rotates at a constant angle.

The rotation guide rollers are fixed to the girders at a predetermined interval, and have a first support shaft and a second support shaft, the first rotation shaft and the second rotation shaft being formed at both ends of the first support shaft and the second support shaft, A rotation bracket that is inserted into the insertion holes of the first and second support rods and is rotatably coupled to the first and second support rods, Guide rollers.

A hollow is formed along the axis of the second rotation shaft, and the wire rope passing through the guide roller passes through the hollow.

A main frame including a pair of lower beams spaced apart from each other in parallel to each other, a vertical frame installed at both ends of each of the pair of lower beams, and a girder installed at an upper end of the vertical beams, A pair of wheels, a pair of wheels, at least two of the wheels, and a steering unit connected to the main frame to control a rotating direction of the wheels, and a pair of upper and lower parts of the girders arranged in parallel, A pair of sling belts connected to both ends of the hook block and supporting a lower portion of the boat, a pair of sling belts wound around the hoisting winch, Block and the trolley, and the other end is fixed to the girder so that the hoist winch is wound when it is rotated Further comprising a trolley guide roller installed between the wire rope for raising and lowering the hook block and the trolley on both sides of the upper surface of the girder while guiding the wire rope passed through the rotation guide roller by the trolley, The hoist winch is installed in the main frame, and is connected to the hook block to lift the hook block.

The wheels are composed of a steering wheel installed at a lower end of one of the lower beams and a traveling wheel installed at a lower end of the lower beams.

The trolley includes a trolley-dedicated rail installed along the longitudinal direction on the upper surface of the girder, a trolley bracket mounted on the trolley-dedicated rail and reciprocated along the trolley-dedicated rail, a rotary block installed to rotate on one side of the trolley bracket, And a plurality of vertical rollers installed in the rotary block and passed through the wire rope, wherein the rotary block is coupled to the trolley bracket at a block hinge axis at an upper portion thereof.

The rotary block rotates about the block hinge axis by an angle of inclination of the sling belt when the sling belt is pulled along the streamlined shape while being closely attached to the lower portion of the boat.

The trolley guide roller serves to prevent an overload from stopping the driving of the hoist winch when an overload is detected during driving of the hoist winch.

Wherein the trolley guide roller is installed on a guide roller bracket provided on the girder and horizontally on the guide roller bracket and is installed on a guide roller passed through the wire rope and the guide roller bracket, And a pin type load cell for detecting an overload applied to the hoist winch when the overload is transferred to the wire rope and transmitting the overload to the controller.

The marine mobile lift further includes a radio control device for controlling operation and running of the hoist winch.

The marine mobile lift further includes a camera for identifying a blind spot and an obstacle detection sensor for detecting the presence of surrounding dangerous material.

The marine mobile lift according to the embodiment of the present invention applies a roller that guides a wire rope while rotating in accordance with a change in the number of wire ropes wound on a hoist winch while the wire rope wound on the hoist winch is wound or unwound , It is possible to prevent the wire rope warp between the hoist winch and the roller or the wire rope from being detached from the roller, thereby preventing damage to the wire rope as well as the portion where the wire rope is contacted or connected.

1 is a perspective view schematically illustrating a configuration of a marine mobile lift according to an embodiment of the present invention;
2 is a schematic view showing a rotation guide roller;
3 is a schematic cross-sectional view of the rotation guide roller of FIG. 2 viewed from above.

As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. In this specification, the terms "comprising ", or" comprising "and the like should not be construed as necessarily including the various elements or steps described in the specification, Or may be further comprised of additional components or steps. Also, the terms "part," " module, "and the like described in the specification mean units for processing at least one function or operation, which may be implemented in hardware or software or a combination of hardware and software .

Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view schematically illustrating the configuration of a marine mobile lift according to an embodiment of the present invention, FIG. 2 is a schematic view showing a rotation guide roller, and FIG. 3 is a schematic cross- to be.

Referring to FIG. 1, a marine mobile lift according to an embodiment of the present invention includes a main frame 10, a wheel 20, a trolley 30, a hook block 40, a sling belt 50, a hoist winch 60, , A wire rope (70), a rotation guide roller (80), and a trolley guide roller (90).

The main frame 10 includes a pair of lower beams 11 spaced apart from each other in parallel to each other, vertical beams 12 installed on both ends of a pair of lower beams 11, (13).

For example, a trolley-dedicated rail (not shown) is provided on the upper surface of the girder 13 along its longitudinal direction, and a trolley 30 to be described later is seated on the trolley-dedicated rail. .

The wheels 20 are installed at both ends of the lower beams 11.

For example, the wheel 20 may include a steering wheel installed at a lower end of one end of the lower beams 11 and a traveling wheel installed at a lower end of the lower ends of the lower beams 11.

A pair of steering wheels can be installed to rotate on the steering shaft, two steering wheels are provided independently, and a tie rod is not provided. In a typical steering mechanism (eccentric mechanism), a pair of steering wheels are connected by a tie rod. When the steering wheel is rotated, the tie rod rotates the steering wheel on the inner side more than the steering wheel on the outer side of the pair of steering wheels . The marine mobile lift according to the embodiment of the present invention requires a space for lifting the boat between the pair of steering wheels, and thus the tie rods can not be connected to the two steering wheels. Therefore, the marine mobile lift according to the embodiment of the present invention can have a structure in which, when the manual handle is rotated, the pair of steering wheels are rotated by the steering portion, and the inner steering wheel is rotated more than the outer steering wheel. Here, the steering unit may be connected to the main frame 10 and the steering wheel to control the rotational direction of the steering wheel.

The pair of running wheels are driven wheels and can be rotated while being moved along the steering direction or the running direction of the steering wheel.

The trolleys 30 are each provided on the upper portion of the girders 13 arranged in parallel so that the pair of trolleys 30 are simultaneously transported to the center of the girder 13 or both ends of the girder 13 .

For example, the trolley 30 includes a trolley bracket that is mounted on a trolley-dedicated rail and is reciprocally transported along the trolley bracket, a rotation block installed to rotate on one side of the trolley bracket, and a plurality of A vertical roller may be provided. The rotating block has a top coupled to the trolley bracket as a block hinge axis. Thus, the rotating block is rotated about the block hinge axis by the tilted angle of the sling belt 50 when the sling belt 50 is pulled along the streamlined shape while closely adhering to the lower portion of the boat. That is, when the sling belt 50 is pulled obliquely along the streamline of the boat, the hook block 40 is pulled together so that the wire rope 70 connected to the hook block 40 is tilted The angle of inclination is pulled. At this time, the rotating block is also rotated about the block hinge axis by the pulling force of the wire rope 70, so that the vertical rollers installed on the rotating block are inclined according to the inclination angle of the wire rope 70. Therefore, if the sling belt 50 is tilted while closely adhering to the boat, the rotation block and the vertical rollers are also inclined at the same angle, so that the warp deformation of the wire rope 70 and the abnormal wear of the roller can be prevented.

The hook block 40 is connected to the trolley 30 and is transported together with the trolley 30. The hook block 40 is provided with hook block rollers, and the wire rope 70 via the rollers of the trolley 30 is passed through the hook block rollers.

The lower end of the sling belt 50 is connected to the hook block 40 and has a U-shape. When the lower end of the sling belt 50 is locked in the seawater, when the sail enters the dock, both ends of the sling belt 50 are pulled upward, Is brought into close contact with the wired part under the yacht.

The hoist winches 60 are installed in the main frame 10 and connected to the hook blocks 40 to lift and lower the hook blocks 40.

For example, the hoist winches (60) may be arranged in the lower beam (11) of the main frame (10). A pressure sensor (not shown) may be installed inside the hoist winch 60 to sense the tension applied to the wire rope 70. This pressure sensor is installed inside the hoist winch 60 and detects the tensile force of the wire rope 70 when it is transmitted to the hoist winch 60. When the tensile force of the measured wire rope 70 is larger than the set value, the hoisting operation of the hoist winch 60 can be stopped.

The wire rope 70 is wound around one end of the hoist winch 60 and passes through the hook block 40 and the trolley 30 and the other end is fixed to the girder 13 so that the hoist winch 60 is rotated The hook block 40 is lifted or lowered while being wound or unwound.

For example, the wire rope 70 may have four rows, as shown in FIG.

That is, the first wire rope 70 on the left side of the four wire ropes 70 is wound around the first hoist winch 60 on the left side of the four hoist winches 60, After passing through the vertical roller of the trolley 30 and the hook block roller of the hook block 40 disposed on the rear right side of the upper surface of the girder 13 via the roller 80 and the trolley guide roller 90, 13).

The second wire rope 70 of the four-row wire rope 70 is wound around the second hoist winch 60 from the left one of the four hoist winches 60, Via the vertical roller of the trolley 30 disposed on the rear left side of the upper surface of the girder 13 and the hook block roller of the hook block 40 via the roller 14 and the trolley guide roller 90 And can be fixed to the upper surface of the girder 13.

The third wire rope 70 of the four-row wire rope 70 is wound around the third hoist winch 60 from the left one of the four hoist winches 60 at one end, 80 and the trolley guide roller 90 and passes through the vertical roller of the trolley 30 disposed on the front right side of the upper surface of the girder 13 and the hook block roller of the hook block 40, As shown in FIG.

The fourth wire rope 70 of the four-row wire rope 70 is wound around the fourth hoist winch 60 from the left one of the four hoist winches 60 at one end, The vertical roller of the trolley 30 disposed on the front left side of the upper surface of the girder 13 and the hook block roller of the hook block 40 via the roller 14 and the trolley guide roller 90 Can be fixed to the upper surface of the back girder (13).

The rotation guide roller 80 is installed on one side of the upper surface of the girder 13 and serves to guide the wire rope 70 wound or unrolled to the hoist winch 60. For example, four rotation guide rollers 80 may be installed on the upper surface of the girder 13 corresponding to the position of each hoist winch 60 installed on the lower beam 11, as shown in Fig. have.

At this time, the rotation guide roller 80 moves in accordance with the change in the number of layers of the wire rope 70 wound on the hoist winch 60 while the wire rope 70 wound in multiple layers on the hoist winch 60 is wound or unwound The wire rope 70 can be guided while rotating at a predetermined angle in accordance with the moving direction of the wire rope 70. [

For example, the wire rope 70 wound on the hoist winch 60 may be wound or unwound while the winding layer unwound or unwound on the hoist winch 60 may vary in position, Lt; / RTI > Therefore, when the roller for guiding the wire rope 70 wound around the hoist winch 60 is fixed, the wire rope 70 at that portion may be warped and abnormal roller abrasion may occur. Further, the wire rope 70 70 may be released from the roller.

The rotation guide roller 80 according to the embodiment of the present invention guides the wire rope 70 wound or unwound to the hoist winch 60 while the wire rope 70 is wound on the hoist winch 60 As it changes, it can rotate at a certain angle.

2, the rotation guide roller 80 includes a first support 81 and a second support 82, which are spaced apart from the girder 13 at predetermined intervals and have insertion holes formed at their ends, A first rotation shaft 84 and a second rotation shaft 85 are formed at both ends of the first support shaft 81 and the second support shaft 82. The first rotation shaft 84 and the second rotation shaft 85 are connected to the first support shaft 81 and the second support shaft 82, A rotation bracket 83 inserted into the insertion hole and rotatably coupled to the first support 81 and the second support 82 and a guide roller 82 installed on the rotation bracket 83 and passed through the wire rope 70 86). Here, a hollow is formed along the axis of the second rotary shaft 85, and the wire rope 70 passing through the guide roller 86 can pass through the hollow. The guide roller 86 has a Y-shaped cross section, as shown in FIG. 2, so that the wire rope 70 can be seated in the center portion of the rim of the guide roller 86. The guide roller 86 can be pulled by the wire rope 70 when the wire rope 70 wound on the hoist winch 60 is rolled or loosened and the layer wound on the hoist winch 60 is changed and moved The rotation bracket 83 to which the guide roller 86 is coupled can rotate around the first rotation axis 84 and the second rotation axis 85 by a predetermined angle. According to the embodiment of the present invention, the rotation guide roller 80 may be configured to be rotatable by 360 degrees, but it may suffice to rotate only about 10 to 15 degrees according to the experimental results.

For example, such a rotation guide roller 80 may be configured to have the cross section shown in Fig. Referring to FIG. 3, the first support 81 and the second support 82 may be configured such that the support body 1 and the shaft insertion module 2 are coupled. That is, the shaft insertion module 2 can be fixed to the support body 1 by the fixing screw 3. The shaft insertion module 2 is formed with an insertion hole into which the first rotation shaft 84 and the second rotation shaft 85 are inserted and the first and second rotation shafts 84 and 85, (4) can be mounted between the rotating shaft (2) and the rotating shaft (84, 85) for smooth rotation.

The trolley guide rollers 90 are installed between the trolleys 30 on both sides of the upper surface of the girder 13 and guide the wire rope 70 passed through the rotation guide roller 80 to the trolley 30.

In addition, the trolley guide roller 90 may perform an overload prevention function for stopping the driving of the hoist winch 60 when an overload is detected when the hoist winch 120 is driven.

For example, the trolley guide roller 90 includes a guide roller bracket (not shown) installed on the girder 13, a guide roller (not shown) installed horizontally on the guide roller bracket and passed through the wire rope 70, A pin type load cell (not shown) installed on the guide roller bracket and coupled to the rollers so as to rotate idly and to detect an overload applied to the hoist winch 60 when the overload is transmitted to the wire rope 70, Time). The trolley guide rollers 90 are installed on both sides of the upper surface of the girder 13 so that the first wire rope 70 and the third wire rope 70 of the four wire ropes 70, The second wire rope 70 and the fourth wire rope 70 apply a tensile force to the pin type load cell via the left trolley guide roller 90 . When the hook block 40 is overloaded, the trolley guide roller 90 according to the embodiment of the present invention detects the pin type load cell and transmits it to the controller. When the hoist winch 60 is hoisted The hook block 40 can be lowered to release the overload. Therefore, when an overload is applied to a specific one of the four hook blocks 40, the lifting operation of the hoist winch 60 is stopped, so that the breakage and safety accident of the hoist winch 60 can be prevented in advance.

The marine mobile lift according to the embodiment of the present invention may further include a radio control device (not shown) for controlling the operation of the traveling and hoist winch 60. For example, the controller of the marine mobile lift may be wirelessly communicatively connected to the radio control unit with a wireless communication unit. The controller may be configured to drive the hoist winch 60, the wheel 20 and the steering unit according to a control signal received from the radio control unit And control.

The radio control device can provide the function of controlling a plurality of hoist winches 60 individually, groupwise or globally. For example, the radio control device can provide a function of controlling four hoist winches 60 by dividing two hoists or controlling all four hoists.

In addition, the marine mobile lift according to the embodiment of the present invention may further include a camera (not shown) or an obstacle detection sensor (not shown) for surrounding surveillance.

For example, the camera may be disposed at a position where the blind spot is photographed, and the radio control device may include a display for receiving the image photographed by the camera and outputting the received image. Thus, the user can check the blind spot and control the overall operation of the marine mobile lift while considering this.

For example, an obstacle detection sensor can detect the presence of dangerous substances around a marine mobile lift, and can transmit a detection signal to an alarm device or a radio control device provided in a marine mobile lift.

It will be apparent to those skilled in the art that various modifications, additions and substitutions are possible, without departing from the spirit and scope of the invention as defined by the appended claims. Should be regarded as belonging to the following claims.

10: Main frame
11: Lower beam
12: Vertical beam
13: Girder
20: Wheels
30: Trolley
40: hook block
50: Sling belt
60: Hoist winch
70: Wire rope
80: rotation guide roller
90: Trolley guide roller

Claims (11)

A hoist winch wound with multiple layers of wire rope; And
And a rotation guide roller for guiding the wire rope wound or unwound on the hoist winch and rotating the wire rope by a predetermined angle as the layer wound on the hoist winch changes,
The rotation guide roller
A first support and a second support which are spaced apart from each other at a predetermined interval on the girder and each have an insertion hole formed therein;
A first rotation shaft and a second rotation shaft are formed at both ends, respectively, and the first rotation shaft and the second rotation shaft are inserted into insertion holes of the first support member and the second support member, respectively, A rotation bracket rotatably coupled to the rotation shaft; And
And a guide roller installed on the rotation bracket and passing through the wire rope,
A hollow is formed along the axis of the second rotation shaft, the wire rope passing through the guide roller passes through the hollow,
The guide roller has a Y-shaped cross section, and the wire rope is seated in the center portion of the rim of the guide roller so that the wire rope wound on the hoist winch is rolled or loosened and the layer wound on the hoist winch is changed and moved The guide roller is pulled by the wire rope and the rotation bracket to which the guide roller is coupled is rotated at a predetermined angle about the first rotation axis and the second rotation axis,
Wherein the first support and the second support are coupled to a support body and a shaft insertion module, the shaft insertion module is coupled to the support body and fixed by a fixing screw, And a bearing is mounted between the first rotation shaft and the second rotation shaft and the shaft insertion module for smooth rotation of the rotation shaft.
delete delete The method according to claim 1,
A main frame including a pair of lower beams spaced apart from each other in parallel to each other, vertical beams installed at both ends of each of the pair of lower beams, and a girder installed at an upper end of the vertical beams;
Wheels mounted on both lower ends of the lower beams;
At least two of the wheels and a steering unit connected to the main frame to control a rotating direction of the wheels;
A trolley provided on each of upper and lower portions of the girders arranged in parallel and installed to be transferred to the center side and both ends of the girder;
A hook block connected to the trolley and conveyed together with the trolley;
A pair of sling belts connected at both ends to the hook block and supporting a lower portion of the boat;
A wire rope wound around the hoist winch, routed through the hook block and the trolley, and the other end fixed to the girder so that the hoist winch is wound or unwound when the hoist winch rotates; And
And a trolley guide roller installed between the trolleys on both sides of the upper surface of the girder and guiding the wire rope passed through the rotation guide roller by the trolley,
Wherein the hoist winch is installed in the main frame, and is connected to the hook block to elevate the hook block.
5. The method of claim 4,
Wherein the wheels comprise a steering wheel installed at a lower end of one of the lower beams and a traveling wheel installed at a lower end of the lower beams.
5. The method of claim 4,
The trolley,
A trolley-dedicated rail installed on the upper surface of the girder along its longitudinal direction;
A trolley bracket mounted on the rail dedicated to the trolley and reciprocated along the rail;
A rotating block installed to rotate on one side of the trolley bracket; And
A plurality of vertical rollers installed in the rotary block and passed through the wire rope,
And the upper portion of the rotary block is coupled to the trolley bracket at a block hinge axis.
The method according to claim 6,
Wherein the rotation block rotates about the block hinge axis by an angle of inclination of the sling belt when the sling belt is pulled along the streamlined shape while being closely attached to the lower portion of the boat.
5. The method of claim 4,
Wherein the trolley guide roller performs an overload preventing function to stop the driving of the hoist winch when an overload is detected during driving of the hoist winch.
9. The method of claim 8,
The trolley guide roller
A guide roller bracket installed on the girder;
A guide roller installed horizontally in the guide roller bracket and passed through the wire rope; And
And a pin type load cell installed on the guide roller bracket and connected to the rollers so as to idly rotate, and an overload is transmitted to the wire rope so that an overload is applied to the hoist winch, Marin Mobile Lift.
The method according to claim 1,
Further comprising a radio control device for controlling the operation and running of the hoist winch.
The method according to claim 1,
A camera for checking a blind spot; And
Further comprising an obstacle detection sensor for detecting the presence of surrounding dangerous goods.

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