KR20090009824U - Hoist Crane - Google Patents

Abstract

The present invention relates to a hoist crane, and more particularly to a hoist crane that can prevent the deflection of the rail by dispersing the force on the rail while balancing the left and right of the heavy load. Features of the present invention, in the crane structure including a guide rail and a hoist portion, the upper flange of the guide rail is further provided with an arcuate reinforcement, the reinforcement portion both ends fixedly coupled to the upper flange of the guide rail; And a plurality of fixed support portions fixedly coupled to the rod and the upper flange to connect the rod and the upper flange.

Description

Hoist Crane

The present invention relates to a hoist crane, and more particularly to a hoist crane that can prevent the deflection of the rail by dispersing the force on the rail while balancing the left and right of the heavy load.

In general, a hoist is one of the mechanisms for lifting and lowering loads using wire ropes. A hoist, a gear reduction device, a winding device, etc., is used as a group, and a hook is attached to the end of the hoisting rope to lift or lift a cargo. Refers to a series of devices that are operated so that they can be transported in the other direction in the raised state.

These types of hoists include electric hoists and air hoists. Electric hoists include small conductors, pulsations with planetary gear accelerators, electromagnetic brakes to hold cargo, and load brakes to adjust the speed when loading. It can be said to be a compact hoist that is concentrated, and is attached to the end of the jib or used to move up and down the cargo by traveling the rail of the lower flange of the H-beam.

As described above, hoists, which are hoisting devices that simply assemble an electric motor, a speed reducer, a drum, a brake, and the like necessary for hoisting or traversing, have various types depending on the place of use and the structure of the machine. For example, it is a simple and economical monorail crane that consists of a hoist-type ceiling crane that is used for applications where speed and operability are not important, and a suspension-type wire rope hoist that runs on a mono track and a chain hoist. Instead of the crab of the crab-type ceiling crane, the electric hoist is mounted on the double rail crane using two rails and the single rail crane using one rail.

1 is a schematic view of a conventional crane structure, as shown in Figure 1, the conventional crane is transported along the running rail 10 of the H beam or I beam provided on the top of a factory or other structure, etc. A guide rail 20 that is orthogonally fixed to a lower end of the transfer part 40 and the transfer part 40, and moves along with the transfer part 40, and a hoist part 30 that moves along the guide rail 20 and transfers heavy materials. It is composed of

The running rail 10 has an H beam shape as shown in the drawing, and is fixedly positioned at the top end of a ceiling or other steel structure of a factory.

The conveyer 40 is conveyed along the running rail 10, and is conveyed to a desired position in a state in which a heavy object is lifted along a guide rail 20 to be described below, which is provided at the lower end thereof. It is a structure that is transported only in one direction along the rail (10).

The transfer part 40 is provided with driving wheels traveling along the outer surface of the travel rail 10 before and after the transfer part 40, and a driving motor for driving one of the driving wheels is provided to control the controller. As a result, the front and rear conveyance of the conveyance part 40 is controlled.

Such driving wheels are transported along the curved surfaces respectively to the lower side of the outer side of the running rail 10, thereby allowing the conveying unit 40 to be moved to a desired predetermined position as a whole.

In this structure, when the hoist portion 30 hanging the heavy material to the hook 31 is transferred along the guide rail 20, the action point of the instantaneous concentration stress is generated differently. That is, a considerable concentrated load may be biased at the corresponding position of the guide rail 20 according to the position of the hoist part 30, so that the phenomenon that the guide rail 20 sags downward may occur.

In addition, when such a phenomenon occurs, mechanical defects and heavy loads of heavy loads hanging on the hooks 31 of the hoist unit 30 and damages of the products, and safety accidents of the working personnel are caused.

In the present invention is provided to further improve the structure reinforced with a reinforcing material in the guide rail running the hoist described above, conventionally, as shown in Figure 2 to prevent the deflection phenomenon such as guide rail ( 20) A reinforcing part 5 having a uniform width up and down was added to the upper flange 22.

However, even if such a uniform upper and lower fixed width reinforcement part is installed on the upper part of the rail, deflection of the rail due to the heavy load still remains due to the bias distribution of the concentrated load at a certain position where the heavy object is placed and the stress on the rail. There is a problem that occurs.

Therefore, the present invention is devised to solve the problems as described above, the object of the present invention is to distribute the concentrated load provided to the rail position where the heavy weight suspended in the transfer of heavy load using a hoist of the rail The present invention provides a hoist crane that can prevent sag.

The present invention to achieve the above object,

In the crane structure including the guide rail and the hoist part,

The upper flange of the guide rail is characterized in that the arc-shaped reinforcement is further provided.

Here, the reinforcing portion is a rod body fixedly coupled to the upper flange of the both ends of the guide rail; And a plurality of fixed support portions fixedly coupled to the rod and the upper flange to connect the rod and the upper flange.

At this time, the plurality of fixed support is preferably fixed to the upper flange center line perpendicularly configured to connect the rod and the upper flange.

In addition, each of the plurality of fixed support portions are fixedly coupled to the corresponding position of the rods of each upper edge and each lower edge corresponding to each other spaced and fixedly spaced apart from each other in a direction orthogonal to the longitudinal direction of the guide rail on the upper flange surface of the guide rail It is preferred that a plurality of pairs be formed.

In addition, the reinforcing portion plate is fixed to both ends of the upper flange of the guide rail; And a plurality of fixed support portions fixedly coupled to the plate and the upper flange to connect the plate and the upper flange.

At this time, the plurality of fixed support is preferably fixed to the upper flange vertically configured to connect the plate and the upper flange.

Here, the plurality of fixed support portion is characterized in that at least one of the plate-like, cylindrical or polyhedral columnar.

In addition, the reinforcement portion is a lower surface is a plane and the upper surface is composed of a plate of a predetermined thickness of an arc shape of a certain curvature, characterized in that the lower surface is fixedly coupled to the upper flange of the guide rail in the longitudinal direction.

Therefore, according to the present invention, in the crane structure consisting of a running rail, a guide rail and a hoist, it is able to withstand a considerable load of heavy weight, and overcomes the problem that the guide rail sags downward during the driving process, thereby enabling more stable operation. have.

In addition, according to the present invention, it is possible to safely transport the heavy weight according to the stable operation of the hoist, to prevent the safety accident due to falling of the heavy weight, such as to ensure the safety of the worker working under it It works.

1 is a schematic view of a conventional crane structure,

Figure 2 is a schematic diagram of a guide rail and a hoist provided with a conventional reinforcement,

3 is a schematic diagram showing a first embodiment of a reinforcing part according to the present invention on a part of a guide rail;

Figure 4 is a schematic diagram showing a second embodiment of the reinforcing portion according to the present invention on a portion of the guide rail,

5 is a schematic view showing a third embodiment of the reinforcing part according to the present invention on a part of a guide rail;

6 is a schematic view showing a fourth embodiment of a reinforcing part according to the present invention on a part of a guide rail;

7 is a view showing the relationship of the force on the reinforcement portion according to the present invention.

[Explanation of symbols on the main parts of the drawings]

5,50,60,70,80: reinforcement part 10: running rail

20: guide rail 22: upper flange

30: hoist part 31: hook

40: transfer part 52, 62: rod body

54, 64, 74: fixed support 72: plate

N: drag

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

Figure 3 is a schematic diagram showing a first embodiment of the reinforcement portion according to the present invention on a portion of the guide rail, Figure 4 is a schematic diagram showing a second embodiment of the reinforcement portion according to the present invention on a portion of the guide rail, Figure 5 3 is a schematic view showing a part of a guide rail, FIG. 6 is a schematic view showing a part of a guide rail according to a fourth embodiment of the reinforcement part according to the present invention, and FIG.

As shown in Figure 3 and 6, the hoist crane according to the present invention is a reinforcement portion 50, 60, 70, fixedly coupled to the guide rail 20 and the guide rail 20 is provided with a hoist portion 30, 80).

The guide rail 20 of the present invention shows a part of the guide rail 20 shown in FIG. 1, and has a structure having an I beam shape that is a unit length, and is provided at the lower end of the center of the transfer part 40. Orthogonally fixed to guide so that the hoist portion 30 can be transferred.

Substantially, the hoist part 30 is moved to the left and right along the length of the guide rail 20, and at the same time the hoist in the desired direction within 360 ° by the conveying part 40 is conveyed back and forth along the running rail 10 The heavy object suspended from the hook 31 of the part 30 can be transferred.

The hoist unit 30 is provided with a roller for guiding along both sides of the guide rail 20 and rolling by rolling motion, and a motor for driving the roller.

The reinforcement parts 50, 60, 70, and 80 are structures for preventing the guide rail 20 from sagging downward by the load of the heavy object suspended from the hook 31 of the hoist part 30. It is formed in a round arch having a curvature, and is fixedly coupled to the upper flange 22 of the guide rail (20).

The reinforcement part 50 of the first embodiment shown in FIG. 3 has an arc-shaped rod body 52 of a predetermined thickness, and both ends thereof are fixedly coupled to the center line of the upper flange 22 of the guide rail 20, and the rod body 52 is formed. And the upper flange 22 are connected to and coupled to a plurality of fixed support portions 54.

At this time, the plurality of fixed support portion 54 is fixed to the center of the upper flange 22 vertically is configured to connect the rod 52 and the upper flange (22).

Here, the material of the rod body 52 and the fixed support portion 54 is preferably a high-strength special-shaped steel with high tensile strength, but is not limited to this, of course, steel of various materials with high tensile strength is possible.

The reinforcement part 60 of the second embodiment shown in FIG. 4 is a rod body 62 having a predetermined thickness in an arc shape, and both ends thereof are fixedly coupled to the center line of the upper flange 22 of the guide rail 20, and the rod body 62 is formed. And the upper flange 22 are connected and coupled with a plurality of fixed support 64.

At this time, the fixing support 64 is composed of a plurality of corresponding pairs, respectively, each of the upper edge is fixedly coupled to the corresponding position of the rod body 62, each lower edge of the upper flange 22 of the guide rail 20 The surface is fixedly spaced apart from each other at regular intervals in a direction perpendicular to the guide rail longitudinal direction.

In FIG. 4, the connecting portions of the rod 62 and the pair of fixed support portions 64 are shown in the same position, but are not limited thereto, and the left and right fixed support portions 64 may be alternately centered around the rod 62. Of course.

Although the shapes of the arcuate rods 52 and 62 and the fixed support portions 54 and 64 of the reinforcement parts 50 and 60 are shown in the shape of a rod only in FIGS. 3 and 4, the shape may be formed in a polyhedral pillar shape without being limited thereto. Of course it is.

In addition, the reinforcing part 70 of the third embodiment shown in FIG. 5 has an arcuate shape of the plate 72, and both ends are fixedly coupled to the upper flange 22 of the guide rail 20, and the plate 72 ) And the upper flange 22 are connected and coupled to a plurality of fixed support (74).

At this time, the width of the plate 72 may be wider or narrower than the width of the upper flange 22, of course.

In addition, the fixed support portion 74 is formed in a plate shape of a predetermined thickness, each upper edge is fixedly coupled to the plate 72 and each lower edge is perpendicular to the surface of the upper flange 22 of the guide rail 20 It is fixedly spaced apart at regular intervals.

Here, the fixed support 74 is not limited to the plate shape, but various shapes such as cylindrical or polyhedral pillars are possible, and of course, when the fixed support 74 is cylindrical or polyhedral pillars, the length of the upper plate 72 is increased. The lengthwise direction of the upper flange 22 surface of the guide rail 20 is fixedly coupled to the center line and fixed to the center line of course.

Similarly, the material of the plate 72 and the fixed support portion 74 is preferably a high-strength special shaped steel with high tensile strength, but is not limited to this, of course, steel of various materials with high tensile strength is possible.

In addition, the rod or plate of the reinforcement portion shown in Figures 3 to 5 and each of the fixed support portion may be formed integrally by injection or the like.

In addition, the reinforcement portion 80 of the fourth embodiment shown in Figure 6 is a shape of a disk of constant thickness cut into a certain size to have an arcuate shape, the lower surface is a flat surface and the upper surface of a certain curvature arc shape plate It consists of. The lower surface is fixedly coupled to the upper flange 22 of the guide rail 20 in the longitudinal direction.

Here, of course, the thickness of the reinforcing portion 80 is not constant, and either thickness of the upper side or the thickness of the lower side may be, of course.

Similarly, the material of the reinforcement part 80 is preferably a high-strength special-shaped steel having high tensile strength, but is not limited thereto, and steel of various materials having high tensile strength is of course possible.

Hereinafter, the operation relationship of the present invention by the above configuration.

In the state in which the heavy object is suspended on the hook 31 of the hoist part 30, the roller of the hoist part 30 rolls along the guide rail 20 according to an operator's operation, and is conveyed.

At this time, in order to transfer the heavy object to the desired position, the guide rail 20 is transported in the front-rear direction along the traveling rail 10 fixed to the ceiling of the structure or the like in a direction orthogonal to the conveying direction of the hoist portion 30.

Thereby, it is possible to transfer the heavy object suspended from the hook 31 of the hoist portion 30 to the desired position to be worked.

As such, when the hoist portion 30 is transferred while the heavy object is suspended, the horizontal guide rail 20 to which the hoist portion 30 is conveyed is forced downward in all points. At this time, the distribution of the concentrated load for each point of the guide rail 20 on the basis of the running rail 10 is changed in comparison with the length.

At this time, the conventional reinforcing part 5 shown in Figure 2 has a horizontal structure similar to the guide rail 20, so that each point of the guide rail 20 receives a downward force, thereby to guide rail ( 20) Deflection phenomenon occurs. In addition, in such a structure, the drag force at each point of the reinforcement part of the guide rail 20 is located on the same line as the force applied to the guide rail 20.

However, when the reinforcement part is formed in a round arch shape having a curvature of a predetermined size as in the present invention, as shown in FIG. 7, the force applied to each point of the reinforcement part (F1, F2, F3,...) The resulting drag N is generated perpendicular to the arcuate tangent by curvature, whereby the forces F1, F2, F3, ..., and drag N are located on the same straight line in the downward direction. You will not. As a result, deflection of the guide rail 20 is prevented by ΔF, which is a difference in force.

3 to 6 may be fixed to the upper flange of the guide rail by welding or by using a bolt nut or other attachment method.

As described above, the present invention has the advantage of preventing the deflection of the guide rail during the transfer of a heavy load by using a hoist portion by fixing the arch-shaped reinforcement to the upper flange of the guide rail.

In addition, by installing the arcuate reinforcement introduced in the present invention in the upper flange of the running rail in addition to the guide rail, it is also possible to prevent the bending of the running rail.

Although the present invention has been described with reference to the embodiments with reference to the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be defined by the technical spirit of the appended utility model claims.

Claims (8)

In the crane structure including the guide rail and the hoist part, Hoist crane, characterized in that the upper flange of the guide rail is further provided with an arcuate reinforcement. The method of claim 1, The reinforcing part of the rod body is fixedly coupled to the upper flange of the both ends of the guide rail; And a plurality of fixed support portions fixedly coupled to the rod and the upper flange to connect the rod and the upper flange. The method of claim 2, The plurality of fixed support is hoist crane, characterized in that the vertically fixed to the upper flange centerline is configured to connect the rod and the upper flange. The method of claim 2, The plurality of fixed support portions are fixedly coupled to a corresponding position of the rods on each of the upper edges, and each lower edge is fixedly spaced apart from each other in a direction orthogonal to the longitudinal direction of the guide rail on the upper flange surface of the guide rail. Hoist crane, characterized in that composed of a plurality in a corresponding pair. The method of claim 1, The reinforcing part of the plate is fixed to both ends of the upper flange of the guide rail; And a plurality of fixed support portions fixedly coupled to the plate and the upper flange to connect the plate and the upper flange. The method of claim 5, wherein The plurality of stationary support is fixed to the vertical flange vertically coupled to the hoist crane, characterized in that configured to connect the plate and the upper flange. The method of claim 6, The plurality of fixed support is hoist crane, characterized in that at least any one of the plate-shaped, cylindrical or polyhedral columnar. The method of claim 1, The reinforcement part is a hoist crane, characterized in that the lower surface is a flat surface and the upper surface is composed of a plate of a predetermined thickness of a certain curvature, the lower surface is fixedly coupled to the upper flange of the guide rail in the longitudinal direction.