KR102289196B1 - Gantry crane - Google Patents

Abstract

The present invention relates to a gantry crane, which includes upper and lower end support parts, and a lifting part to extend or reduce the width and the length of each of the upper and lower end support parts in accordance with the size and the length of an article to be moved, so that a general-purpose use is allowed regardless of size and length of the article to improve the usability of a product. To this end, the gantry crane of the present invention, which moves a heavy article, and can adjust the width and the length in accordance with the size or height of the article, comprises: an upper end support part including a girder, a support formed on both sides of a lower end of the girder, and a fastening means for fastening the girder and the support, and adjusting the length of the support in a width direction with respect to the girder to be fastened and fixed by the fastening means to adjust the length in the width direction; a lower end support part formed at a lower end of the upper end support part, and including a horizontal frame, a pillar bar vertically erected at a certain height at the center of the horizontal frame, a lifting bar into which a lower end is inserted into the pillar bar, and a fixing pin formed at one side or both sides of the lifting bar; and a lifting part formed at one side of the lower end support part, and supporting the length in a height direction to be adjusted as the lifting bar is lifted with respect to the pillar bar.

Description

Gantry Crane {GANTRY CRANE}

The present invention relates to a gantry crane, and more particularly, by configuring the upper support part, the lower support part, and the elevating part, the width and length of each of the upper support part and the lower support part according to the size and length of the article to be moved By enabling it to be extended or shortened, it is possible to use the general purpose regardless of the size and length of the article, and relates to a gantry crane to improve product utility.

In general, when a crane, a hoist, a chain block trolley, etc. are not installed at an industrial site and a heavy object is to be lifted where a mobile crane is not accessible, a large number of installation personnel and work time are required to install the lifting equipment, and safety accidents There is also the risk of

Looking at an example of the gantry crane, as shown in FIG. 1 , a boom 52 is installed on the upper end of a post 51 moving along a rail installed in parallel to the land, and the boom 52 has a boom 52 . ) to install a trolley 53 that moves along the rail fixed to the boom 52 so that it is moved by the machine room 54 provided on the upper side, and the hoist and wire installed on the trolley 53 below the trolley 53 A spreader 56 connected by a rope 55 , a trolley 53 , and a cab 57 capable of operating the gantry crane 50 are provided.

The gantry crane 50 as described above is mainly a loading operation of loading the container 59 on the trailer 58 on the ship 60 and the container 59 loaded on the ship 60 being transferred to the trailer 58. unloading will be performed.

In the case of the loading operation, the driver moves the trolley 53 to the upper side of the trailer 58 on the land, and lowers the spreader 56 to put the container 59 down while the container 59 is attached.

There are det (deck) work and holder (under deck) work for shipping work, and in the case of deck work, the stacked containers 59 are interconnected to prevent shaking of the containers 59 that are shipped and stacked. Cone work must be done separately.

When the cone operation is required, the trailer 58 moves in a state in which the container 59 on the trailer 58 is first lifted with the spreader 56, and then the spreader 56 is lowered again to lower the container (59). 59) after combining the cones at the lower 4 corners, the container 59 is loaded as described above, or the container 59 is loaded after the cone is mounted on the container 59 that is loaded at the location where the container 59 is to be loaded. It is made by laminating method.

On the other hand, in the case of the unloading operation, opposite to the above, the container 59 loaded on the ship 60 is loaded on the trailer 58. When the deck operation is performed, the container 59 is loaded on the trailer 58 before loading the container. (59), the operation of separating the cone attached to it should be preceded.

In the case of separating the cone, the container 59 stacked on the ship 60 is attached to the spreader 56 and first unloaded on land.

After the cone is separated from the state, the container 59 is moved upward, and the trailer 58 is stopped at an unloading position to load the container 59 .

At this time, the separated cones are left on the pier, and are collected and stored after the unloading work is completed before being reused.

Another example of the gantry crane, as shown in FIG. 2, is provided with a first plate and a second plate on the upper left and right sides, respectively, the width adjustable girder (Girder); Legs fixed to the lower part of the girder (Leg); and a saddle (Saddle) connected to the lower part of the leg and provided with anti-skid wheels.

An outrigger that is provided on the left and right sides of the saddle, respectively, is assembled on the lower side of the saddle so that a part overlaps the saddle, and the overlapping area with the saddle is adjustable, so that the length of the width of the girder is adjusted includes ;

The saddle is formed to extend in the vertical direction in the longitudinal direction of the girder, the upper side is further provided with a body frame connected to the lower portion of the leg.

The outrigger, to support the saddle on the left and right sides of the saddle, one side is assembled to the lower side of the saddle, and the other end is bent toward the lower side, is formed in a 'L' shape, supported on the part in contact with the ground A portion is provided so that the saddle is fixed, and the body frame is provided with a plurality of first length adjustment holes arranged in a row along the vertical direction of the longitudinal direction of the girder.

In addition, the outrigger is provided with a plurality of second length adjustment holes arranged in a row along the vertical direction of the longitudinal direction of the girder, any one of the plurality of second length adjustment holes is provided by a separately provided fixing bolt. It is penetrated together with any one of the first length adjustment holes, so that the overlapping area with the saddle is adjusted.

The leg may include: a first leg connected to the lower side of the girder and extending along the height direction of the girder; and a second leg connected to the saddle, assembled with the first leg so that a portion overlaps the first leg, and the overlapping area of the first leg is adjustable so that the height is adjusted.

The first leg and the second leg are provided with a plurality of height adjustment holes arranged in a row along the height direction of the girder, respectively, a specific first height adjustment groove provided in the first leg and a specific second height provided in the second leg When the adjustment groove is penetrated by a separately provided fixing bolt, the height is adjusted according to the position of each height adjustment hole penetrated by the fixing bolt.

The girder includes a third plate to be connected to the leg.

The first plate and the second plate are provided with a plurality of width adjustment holes to be coupled to the third plate, respectively, and the width of the girder varies according to the position of the width adjustment hole used to be coupled to the third plate among the plurality of width adjustment holes. to be regulated.

The saddle includes a braking unit that grips the anti-skid wheel to brake the anti-skid wheel.

The girder includes; a trolley rail on which the manual trolley is seated and movable along the longitudinal direction.

The outrigger may include: a first outrigger for supporting the saddle on the left and right sides along the vertical direction of the longitudinal direction of the girder corresponding to the transverse direction of the saddle; and a second outrigger for supporting the saddle at the central portion of the saddle along the longitudinal direction of the girder corresponding to the longitudinal direction of the saddle, thereby preventing the saddle-controlled manual gantry crane from being overturned.

The first outrigger, one side is assembled to the lower side of the saddle, and the other end is bent toward the lower side, is formed in a 'L' shape, a first support portion is provided at a portion in contact with the ground, the left side of the saddle and Support the birds on the right.

The second outrigger is formed to be connected to the central portion of the saddle, and a second support portion is provided at a portion in contact with the ground to vertically support the saddle in the central portion of the saddle.

However, the conventional gantry crane has a very limited height adjustment range even when a lifting device for lifting a heavy object is installed, and it is inconvenient because the girder and the leg are fixed, so that the width of the girder cannot be adjusted.

In addition, the gantry crane equipment may be overturned, and since it is impossible to install the gantry crane base in a narrow space, there is a problem in that the available places and situations are limited.

Korean Patent No. 10-474103 Republic of Korea Patent Publication No. 10-2018-41844 Korean Patent No. 10-2013543

As a proposal to solve the above problems, the object of the present invention is to configure the upper support part, the lower support part, and the lifting part, and each width of the upper support part and the lower support part according to the size and length of the article to be moved And by allowing the length to be extended or shortened, it is possible to use the general purpose regardless of the size and length of the article, and to provide a gantry crane to improve product utilization.

The present invention for achieving the above object is a gantry crane configured to move a heavy article, and the width and length can be adjusted according to the size or height of the article, the girder and the girder A pedestal configured on both sides of the lower end and a fastening means for fastening between the girder and the pedestal, wherein the width direction length by adjusting the width direction length of the pedestal based on the girder and then fastening and fixing by the fastening means an upper support portion configured to be adjusted; A fixing pin configured on one or both sides of a horizontal frame and a pillar bar that is vertically erected at a predetermined height in the center of the horizontal frame, a lifting bar into which the lower end is inserted inside the pillar bar, and the lifting bar configured at the lower end of the upper support part A lower support portion comprising a; and a lifting part configured on one side of the lower support part to support the length in the height direction as the lifting bar is raised and lowered based on the pillar bar.

In the present invention, the upper support portion, fixed to one end of the girder by a fastening member, the girder to provide a reinforcing force to maintain a stable fixed state to the rib; it is preferable to include.

In the present invention, the lower support portion, is configured at the lower end of the horizontal frame, at least one caster configured to be easily moved; it is preferable to include.

In the present invention, the lower support portion, is configured between the horizontal frame and the column bar, the horizontal frame to provide a reinforcing force so that the column bar is stably maintained in a fixed state; Containing; it is preferable

In the present invention, the lifting unit, and a reference plate configured on one side of the column bar; a lifting lever having one side positioned on the reference plate and supporting the operator to provide a rotational force by substantially gripping a part; a reference pin for providing a pivot point for rotation of the lifting lever by hinge-coupled to one side of the lifting lever to the reference plate; a hook pin configured at an end of the lifting lever; and one end is hinged to the lifting lever by the hook pin, and the other end is configured so that the fixing pin is hooked. It is preferable to include a; elevating hook for elevating the elevating bar with respect to the pillar bar.

In the present invention, the lifting unit is configured on one side of the column bar, and when the lifting of the lifting bar with respect to the column bar is completed by the lifting action of the fixing pin through the lifting hook by the rotation of the lifting lever, the lifting and lowering of the column bar is completed. It is preferable to include; at least one fixing lever that provides a fixing force so that the position of the bar can be maintained in a firmly fixed state.

According to the present invention, by configuring the upper support part, the lower support part, and the elevating part so that the width and length of each of the upper support part and the lower support part can be extended or shortened according to the size and length of the article to be moved, It can be used for general purpose regardless of size and length, and has the effect of improving product usability.

1 is a view of a gantry crane showing an example of the prior art.
Figure 2 is a view of a gantry crane showing another example of the prior art.
3 is a front view of the gantry crane according to the present invention.
4 is a side view of the gantry crane according to the present invention.
5 is an enlarged view of the upper support portion of the gantry crane according to the present invention.
6 is an enlarged side view of the elevating part of the gantry crane according to the present invention.
7 is a front enlarged view of the elevating part of the gantry crane according to the present invention;
7a is before ascent, and 7b is a state diagram after ascent.

Advantages and features of the present invention, and a method for achieving the same, will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

Accordingly, in some embodiments, well-known process steps, well-known structures, and well-known techniques have not been specifically described in order to avoid obscuring the present invention.

The terminology used herein is for the purpose of describing the embodiments, and is not intended to limit the present invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase.

As used herein, “comprises” and/or “comprising” refers to the presence or addition of one or more other components, steps, operations and/or components other than the stated components, steps, operations and/or components. It is used in the sense of not being excluded.

And, “and/or” includes each and every combination of one or more of the recited items.

In addition, the embodiments described herein will be described with reference to cross-sectional and/or schematic diagrams that are ideal illustrative views of the present invention.

Accordingly, embodiments of the present invention are not limited to the specific form shown, but also include changes in the form generated according to the manufacturing process.

In addition, in each of the drawings shown in the present invention, each component may be shown somewhat enlarged or reduced in consideration of convenience of description.

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

The gantry crane of the present invention comprises an upper support part, a lower support part, and a lifting part so that the width and length of each of the upper support part and the lower support part can be extended or shortened according to the size and length of the article to be moved, It is possible to use the product for general purpose regardless of the size and length of the product, thereby improving the usability of the product.

As shown in FIGS. 3 to 7 , the gantry crane includes an upper support part 10 , a lower support part 20 , and an elevating part 30 .

The upper support part 10 includes a girder 110 , a pedestal 120 , a rib 130 , and a fastening means 140 .

The girder 110 is configured at the upper end, and performs a function to guide the transport of the crane.

In this case, the girder 110 is composed of an 'I' beam or an 'H' beam.

The pedestal 120 is configured on the upper end of the lower support part 20 .

In addition, both ends of the girder 110 are seated on the upper end of the pedestal 120 to perform a function of supporting the girder 110 to maintain a predetermined height.

The ribs 130 are configured at both ends of the girder 110 to provide a reinforcing force so that the girder 110 can be stably fixed to the upper end of the pedestal 120 .

In this case, one end of the rib 130 is firmly fixed by a fastening member composed of a bolt and a nut to one end of the girder 110 .

After the fastening means 140 adjusts the fixing position of the pedestal 120 along the longitudinal direction of the girder 110, when the adjustment is completed, the girder 110 can be firmly fixed to the pedestal 120. It performs the function of providing a fixing force so that

The fastening means 140 is composed of a bolt and a nut.

Of course, the present invention is not limited thereto, and the fastening means 140 may be used as long as it is a means or configuration capable of firmly providing a fixing force after adjusting the position of the pedestal 120 in the girder 110 .

Accordingly, when the fastening means 140 is released from the fastening force, the pedestals 120 configured at both ends of the girder 110 are moved a certain length along the longitudinal direction of the girder 110, and then the fastening force is released. By tightening the means 140 , the length-adjusted pedestal 120 is firmly fixed to the girder 110 .

In this case, the rib 130 configured at one end of the girder 110 is also firmly fixed to the pedestal 120 by the fastening means 140 , so that the girder 110 is firmly fixed with respect to the pedestal 120 . provide reinforcement to maintain

The lower support portion 20 performs a function of supporting the lower end of the upper support portion (10).

The lower support part 20 includes a horizontal frame 210 , a pillar bar 220 , a lifting bar 230 , a fixing pin 240 , a support rib 250 , and a fixing lever 260 . do.

The horizontal frame 210 is configured to perform a pedestal function that forms a horizontal state having a predetermined length.

In addition, at least one caster 212 is configured at the lower end of the horizontal frame 210 to facilitate movement.

The pillar bar 220 is formed at a predetermined height in the center of the horizontal frame 210, and performs a function of supporting a vertical height.

In this case, the column bar 220 is preferably a hollow hollow tube type pipe.

The lower end of the lifting bar 230 is inserted into the inner side of the column bar 220 , and the gantry is raised and lowered to a certain height based on the column bar 220 according to the lifting action of the lifting unit 30 . It performs the function of extending or shortening the height of the crane.

In this case, the pedestal 120 of the upper end support unit 10 is fixed to the upper end of the lifting unit 230 .

The fixing pin 240 is configured at one or both ends of the lifting bar 230 , and maintains a state caught in the lifting unit 30 , and by the lifting action of the lifting unit 30 , the fixing pin 240 . ) by elevating and lowering, the elevating bar 230 to which the fixing pin 240 is fixed performs a function of elevating and lowering the elevating bar 230 .

The support rib 250 is configured between the horizontal frame 210 and the pillar bar 220 to provide a supporting force so that the pillar bar 220 can be stably maintained in the horizontal frame 210 . perform the function

In this case, the support rib 250 is preferably configured at both ends of the horizontal frame 210 and the pillar bar 220, respectively.

The fixing lever 260 is configured at the upper end of the column bar 220, and when the lifting of the lifting bar 230 is completed based on the column bar 220, the lifting bar 230 from the column bar 220 is completed. It performs the function of providing a fixing force to firmly fix the lifting position of the machine.

In this case, it is preferable that the fixing lever 260 is configured in plurality at the upper end of the pillar bar 220 .

The elevating part 30 is configured on one side of the lower support part 20 so that the elevating bar 230 is stably elevated based on the column bar 220 by elevating action, thereby adjusting the height of the gantry crane. to make this easy.

In this case, the lifting unit 30 is configured so that the operator can easily perform the lifting action, thereby improving the convenience of work.

The lifting unit 30 includes a reference plate 310 , a lifting lever 320 , a reference pin 330 , a hook pin 340 , and a lifting hook 350 .

The reference plate 310 is configured on one side of the column bar 220 of the lower end support portion 20, and performs a function of supporting a reference point for the lifting and turning of the lifting lever 320.

While the lifting lever 320 is supported on one side of the reference plate 310 , the lifting lever 320 is held so that the operator can actually exert a rotational force.

The reference pin 330 is hinged to the reference plate 310, and by supporting one side of the lifting lever 320 by a hinge, the lifting lever 320 is supported so that it can be stably rotated by the lever principle. perform the function

The hook pin 340 is configured at the end of the lifting lever 320, and performs a function of supporting the lifting hook 350 to be hinged.

One end of the lifting hook 350 is hinged by the hook pin 340 to the end of the lifting lever 320, and the fixing pin 240 of the lower support part 20 at the other end is supported so that the hook is caught. perform the function

The operating state of the gantry crane configured as described above is as follows.

First, if you want to adjust the width, after dismantling the fastening means 140 fastened between the pedestals 120 configured at the lower end of the girder 110 of the upper support part 10, the length of the girder 110 Adjust the position of the pedestal 120 along the direction.

In this case, the ribs 130 at both ends of the girder 110 are maintained in a fixed state by the fastening member.

Then, when the adjustment of the width direction length of the pedestal 120 with respect to the girder 110 is completed, the released fastening means 140 is tightened to the pedestal 120 by the girder 110 and the rib 130, A pedestal 120 whose length has been adjusted with respect to the length in the width direction is fixed to the girder 110 .

Next, if you want to adjust the height, initially, as shown in FIG. 7A , the lifting lever 320 with one side hinged to the reference pin 330 of the reference plate 310 is inclined at a certain angle. .

In this case, the lifting lever 320 is in a state in which the outer side is raised, and the part located on the inner side is in a lowered state, and a lifting hook hinged by a hook pin 340 to the end of the lifting lever 320 ( 350) is configured, and the fixing pin 240 of the lower support part 20 is hooked to the elevating hook 350 .

Thereafter, as shown in FIG. 7B , the part positioned on the raised outer side of the lifting lever 320 is lowered downward in a state in which the operator grips.

Accordingly, as the elevating lever 320 rotates downward in the outer direction, the elevating hook 350 located in the relatively inner side rises.

Then, the fixing pin 240 hooked to the lifting hook 350 rises, and thereby the lifting bar 230 to which the fixing pin 240 is fixed rises.

Therefore, as the lifting hook 350 raises and lowers the fixing pin 240 according to the lifting action of the lifting lever 320, the lifting bar 230 is sequentially ascended and lowered based on the pillar bar 220, The length to height is adjusted.

On the other hand, when the height adjustment of the lifting bar 230 with respect to the column bar 220 is completed, by tightening the fixing lever 260 configured at the upper end of the column bar 220, the column bar 220 is raised and lowered. The bar 230 is firmly fixed.

What has been described above is only one embodiment for implementing the gantry crane, and the present invention is not limited to the above embodiment. Those of ordinary skill in the art to which the present invention pertains will understand that various modifications can be made without departing from the gist of the present invention.

10: upper support 110: girder
120: pedestal 130: rib
140: fastening means 20: lower support part
210: horizontal frame 212: caster
220: pillar bar 230: elevating bar
240: fixing pin 250: support rib
260: fixed lever 30: elevating part
310: reference plate 320: lifting lever
330: reference pin 340: hook pin
350: elevating hook

Claims (6)

In the gantry crane configured to move a heavy article, the width and length can be adjusted according to the size or height of the article,
Comprising a girder and a pedestal configured on both sides of the lower end of the girder and fastening means for fastening between the girder and the pedestal, after adjusting the width direction length of the pedestal based on the girder, fastening and fixing by the fastening means By doing so, the upper support portion configured to be adjusted in the width direction;
A fixing pin configured on one or both sides of a horizontal frame and a pillar bar that is vertically erected at a predetermined height in the center of the horizontal frame, a lifting bar in which the lower end is inserted into the inner side of the pillar bar, and the lifting bar configured at the lower end of the upper support part A lower support portion comprising a; and
Containing; and a lifting part configured on one side of the lower support part to support the length in the height direction as the lifting bar is raised and lowered with respect to the pillar bar.
The lifting unit,
a reference plate configured on one side of the column bar;
a lifting lever having one side positioned on the reference plate and supporting the operator to provide a rotational force by substantially gripping a part;
a reference pin for providing a rotation reference point of the lifting lever by hinge-coupled to one side of the lifting lever to the reference plate;
a hook pin configured at an end of the lifting lever; and
One end is hinged to the lifting lever by the hook pin, and the other end is configured such that the fixing pin is hooked. Gantry crane comprising a; elevating hook for elevating the lifting bar with respect to the bar.
The method according to claim 1, The upper support portion,
a rib fixed to one end of the girder by a fastening member to provide a reinforcing force so that the girder can be stably fixed to the pedestal;
A gantry crane comprising a.
The method according to claim 1, The lower support portion,
at least one caster configured at a lower end of the horizontal frame to facilitate movement;
A gantry crane comprising a.
The method according to claim 1, The lower support portion,
at least one support rib configured between the horizontal frame and the pillar bar to provide a reinforcing force so that the horizontal frame can maintain the stable fixed state of the pillar bar;
A gantry crane comprising a.
delete The method according to claim 1, wherein the lifting unit,
It is configured on one side of the column bar, and when the lifting of the lifting bar is completed with respect to the column bar by the lifting action of the fixing pin through the lifting hook by the rotation of the lifting lever, the position of the lifting bar in the column bar is firmly fixed. at least one or more fixing levers providing a fixing force to maintain the;
A gantry crane comprising a.

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