KR101408131B1 - A rail bar for crane - Google Patents

Abstract

The present invention provides a rail bar for a crane capable of preventing the release of a carbon collector even if deformation due to deflection or warping of the rail bar occurs.
In order to achieve the above object, the present invention provides a rail bar for a crane that is grounded with a carbon collector of a current collector and supplies electricity to the crane, wherein an insertion guide groove for inserting the carbon collector is formed at a lower end of the rail bar As a technical point.

Description

A rail bar for crane}

The present invention relates to a rail bar for a crane, and more particularly, to a rail bar for a crane, and more particularly, to a rail bar for a crane, The present invention relates to a rail bar for a crane capable of preventing the departure of electrons.

Generally, a crane requires a power collecting device that moves along a crane and continuously supplies electricity because of the nature of using electricity as a power source.

7 is a front view of the structure of a conventional current collector, and Fig. 8 is a side view of Fig. 7. In Fig.

7 and 8, in the conventional crane power collector, a rail bar (trolley) 200 is installed along the moving direction of a crane, and a brush 300 as a current collector is attached to the rail bar 200 And a pantograph (400) is installed under the brush (300).

However, since the conventional crane current collector moves while the brush 300 is in contact with the rail bar 200, there is a problem that a large area of uneven wear occurs severely according to the degree of warpage of the rail bar, There is a problem.

Particularly, a beam, which is a structure in which the rail bar 200 is installed, is bent by an external force, or when the rail bar 200 itself contracts or expands due to an external temperature difference, 200 are deformed due to deflection and warping, the brush 300 of the current collector is disengaged, which causes a problem in power supply.

In addition, due to the nature of the crane used in the industrial field, various dusts such as dust generated in the industrial field are accumulated on the surface of the rail bar 200 where the brush 300 contacts, 300). ≪ / RTI >

The pantograph 400 provided on the brush 300 pushes the brush 300 only upward or downward, so that if the rail bar 200 is deformed due to an external factor, There is a disadvantage that the contact of the brush 300 can not be effectively controlled when the brush 300 is twisted in one direction.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a rail bar for a crane that can prevent a carbon collector from being separated even if deformation due to deflection or warping of a rail bar occurs.

It is another object of the present invention to provide a rail bar for a crane capable of maximizing the friction between the rail and the carbon collector.

Another object of the present invention is to provide a rail bar for a crane that can effectively ground a carbon collector to a rail bar regardless of whether the rail bar is deflected in a left, right, upper, or lower direction.

Another object of the present invention is to provide a rail bar for a crane, which is formed by separately forming a guide frame of a rail bar in contact with a carbon collector, with copper, thereby enhancing electrical conductivity.

According to another aspect of the present invention, there is provided a rail bar for a crane that is grounded with a carbon collector of a current collector and supplies electricity to a crane, wherein an insertion guide groove for inserting the carbon collector is formed at a lower end of the rail bar .

The rail bar may include an upper frame and a guide frame coupled to the lower frame and having the insertion guide groove formed at a lower end thereof.

Wherein the guide frames are formed with protruding hooks on both sides of the lower end of the upper frame and hooking grooves are formed on the upper ends of the guide frames to fit the hooking protrusions, It is preferable to process them.

Preferably, the upper frame is formed of steel, aluminum, brass or copper, and the guide frame is formed of copper.

The crane is preferably provided with a collector for elastically supporting the carbon collectors.

The collector includes a horizontal flow member for rotatably supporting the carbon collectors to the left and right, a vertical flow member for vertically supporting the horizontal flow member so as to be rotatable, and a fixing base for fixing the vertical flow member to the crane .

The horizontal flow member includes a rotating bracket having a receiving portion for receiving the carbon collectors at the center thereof and being pin-coupled to both sides of the carbon collectors, and a supporting frame for supporting the rotating bracket so as to be rotatable in the left- desirable.

The vertical flow member includes a first arm having one end pinned to the support frame of the horizontal holding member and the other end pin-coupled to the fixing base, and a second arm disposed under the first arm, And the other end is engaged with the fixing pin of the second arm while the other end is engaged with the fixing pin coupled with the first arm, It is preferable to constitute a spring for elastically supporting the first and second arms.

According to the present invention, an insertion guide groove is formed in the lower end surface of a rail bar to which a carbon collector as a dust collecting device is contacted, so that even if a rail bar is deflected or warped due to external influences, Can be realized.

Also, by forming the insertion guide groove in which the carbon collectors are contacted to be formed inside the lower end of the rail bar, it is possible to maximize the friction between the rail bar and the carbon collector by blocking the accumulation of dust such as dust.

A collector is installed beneath the carbon collector to provide a synergistic effect that can effectively ground the carbon collector to the rail bar without any deviation or breakage of the carbon collector even if the rail bar is deflected in either the left, right, upper, or lower direction .

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a three-dimensional view showing the construction of a rail bar for a crane according to the present invention; Fig.
Fig. 2 is a view showing a cross section of the rail bar for a crane shown in Fig. 1; Fig.
Figure 3 is a three dimensional view of the configuration of a collector.
4 is a front view of the collector;
5 is a view showing an operation state of the horizontal flow member in FIG.
FIG. 6 is a view showing an operation state of the vertical flow member in FIG. 4; FIG.
Fig. 7 is a front view showing the structure of a conventional general power collector; Fig.
8 is a side view of Fig. 7; Fig.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following detailed description, exemplary embodiments of the present invention will be described in order to accomplish the above-mentioned technical problems. And other embodiments which may be presented by the present invention are replaced by descriptions in the constitution of the present invention.

According to the present invention, insertion guide grooves are formed on the lower end surface of the rail bar, which is contacted with the carbon collectors as the dust collecting device, so that the separation of the carbon collectors can be prevented even if the rail bars are deflected or warped due to external influences, By inserting the insertion guide groove which contacts with the carbon collector, it is formed in the lower end of the rail bar, so that the accumulation of dust such as dust is prevented originally to maximize the friction between the rail bar and the carbon collector, We propose a rail bar for a crane that can effectively ground a carbon collector to a rail bar regardless of whether the rail bar is deflected in either the left, right, upper, or lower direction.

In other words, the present invention is based on the fact that, due to the operation of the left, right, up and down operation of the current collector, the operation of the rail bar due to the protection of the friction area from dust and carbon powder, securing workability and safety from disengagement, By avoiding pushing in only one direction in the past, it is possible to carry out the collecting by moving the carbon collector in the guide groove of the rail bar regardless of the side pressing type or the upper or lower pressing type, It minimizes the damage of the pantograph and the abrasion rate of the carbon, so it can drastically reduce the dangerous complaint work in the high place by more than 80%, thereby reducing the maintenance risk and the maintenance cost.

The present invention is also advantageous in that the collector and the body of the conventional pantograph carbon are electrically insulated from each other and are energized. However, the collector of the present invention is safe because the carbon and the body are insulated.

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

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a three-dimensional view of the construction of a rail bar for a crane according to the present invention, and FIG. 2 is a view showing a cross section of a rail bar for a crane shown in FIG.

As shown in Figs. 1 and 2, the rail bar 10 for a crane is fixedly installed on the structure along the moving direction of the crane, and receives electricity.

The rail bar for the crane includes an upper frame 20 having a cross-sectional structure of a "T" shape, a guide frame 30 assembled below the upper frame 20 and formed with an insertion guide groove 32 at the lower end thereof, Respectively.

The upper frame 20 and the guide frame 30 are assembled by forming a hooking protrusion 22 on both sides of the lower end of the upper frame 20 so as to protrude along the longitudinal direction of the upper frame 20, A guide frame 30 is provided on the upper end of the frame 30 in a state in which the engaging groove 34 for engaging the engaging protrusion 22 is formed to be recessed, The upper and lower ends of the upper frame 20 and the guide frame 30 are formed by pushing the opposite upper side surfaces 36 of the guide frame 30 formed with the catching grooves 34 inward, Are assembled together.

The upper frame 20 and the guide frame 30 may be formed of various materials. However, in the present invention, the upper frame 20 may be made of steel or aluminum or of brass or copper The guide frame 30 is molded with copper (Cu) excellent in electric conductivity so that electric power can be supplied smoothly considering that the guide frame 30 is grounded with the carbon current collector 40, which is a current collector. Is most preferable.

The insertion guide groove 32 is formed at the lower end of the guide frame 30 and is inserted into the insertion guide groove 32 in a state where the carbon collectors 40, And grounded.

The carbon collectors 40 inserted in the insertion guide grooves 32 are components of a current collector that supplies electricity to a traveling crane and are formed into a rectangular plate shape and are guided by guide frames 30 The insertion guide groove 32 formed at the lower end of the insertion guide groove 32 is moved together with the crane.

That is, according to the present invention, by forming the insertion guide groove 32 into which the carbon collector 40 can be inserted in the rail bar, the beam (not shown), which is a structure in which the rail bar 10 is installed, It is possible to prevent the carbon collector 40 from coming off even if the rail bar 10 itself is deflected or warped in the process of contraction and expansion due to external temperature difference. The insertion guide groove 32 is formed in the lower end of the rail bar 10 to prevent the accumulation of dust such as dust and the like so that the frictional area between the rail bar 10 and the carbon collector 40 (I.e., the contact area) can be maximized, thereby increasing the electrical conductivity.

Meanwhile, the carbon collectors 40 are connected to the crane with the collector 50 therebetween.

Fig. 3 is a three-dimensional view of the configuration of the collector, and Fig. 4 is a front view of the collector.

3 and 4, in the collector 50, when the rail bar 10 is bent in the left, right, upper, or lower direction due to an external factor, The carbon collectors 40 are prevented from being separated and damaged by elastically flowing the carbon collectors 40 moving on the insertion guide grooves 32 of the carbon collectors 40. [

The collector 50 includes a horizontal flow member 60 for rotatably supporting the carbon collectors 40 left and right and a vertical flow member 60 for vertically supporting the horizontal flow member 60 70), and a fixing table (80) for fixing the vertical flow member (70) to the crane.

The horizontal flow member 60 includes a rotating bracket 62 having a receiving portion 61 for receiving the carbon collectors 40 at the center and being coupled to both sides of the carbon collectors 40, And a support frame 64 for supporting the frame 62 so as to be rotatable in the left and right directions.

5, when the rail bar 10 is curved in either one of the left and right directions, the horizontal flow member 60 is pivotally connected to the rotary bracket 60, The guide bar 62 rotates left and right on the support frame 64 and rotates the carbon collectors 40 to the left and right in accordance with the bending direction of the rail bar 10, The carbon collector 40 is prevented from being separated or damaged.

The vertical flow member 70 includes a first arm 72 having one end coupled to the support frame 64 of the horizontal flow member 60 and the other end connected to the fixed member 80 with a pin 72b, And both ends are fixed to the support frame 64 and the fixing base 80 in the state where the first arm 72 is formed in the same shape as the first arm 72 and the pins 74a, And one end of the second arm 74 is engaged with the fixing pin 76a coupled to the first arm 72 and the other end of the second arm 74 is engaged with the fixing pin 76b of the second arm 74 And a spring 76 elastically supporting the first and second arms 72 and 74.

6, when the rail bar 10 is sagged downward due to an external factor, the carbon concentrator 40 is subjected to pressure during the movement. At this time, The first and second arms 72 and 74 which are the vertical flow members 70 are pivoted downward about the pins 72a and 74a of the fixing table 80 and the spring 76 elastically supports the first and second arms 72 and 74, The carbon collector 40 can be elastically supported so as not to be broken by the pressure and the carbon collector 40 can be continuously grounded to the rail bar 10. [

Hereinafter, the operation of the rail bar for a crane according to the present invention will be described with reference to Figs. 1 to 6. Fig.

When the rail bar 10 according to the present invention is manufactured, the upper frame 20 and the guide frame 30 are first formed separately and then the lower frame 30 is fastened to the fastening protrusions 22 of the upper frame 20, After the engaging grooves 34 are inserted, the upper side surfaces 36 of the lower frame 30 having the engaging grooves 34 formed therein are pushed toward the inner side to be formed.

The rail bar 10 thus formed is fixed to the structure along the moving direction of the crane and then installed in the crane in the insertion guide groove 32 formed in the guide frame 30 of the rail bar 10 The carbon current collector 40 is inserted into the insertion guide groove 32 of the rail bar 10 and the carbon collector 40 is inserted into the insertion guide groove 32 of the rail bar 10, Even if the rail bar 10 is deflected or warped due to the movement of the rail bar 10, it is possible to prevent the carbon collectors 40 from being separated from the rail bar 10, so that the electricity can be stably supplied.

When the rail bar 10 is bent in the left, right, upper, or lower direction, the collector 50 connecting the carbon collectors 40 to the crane flexibly moves the carbon collectors 40 The separation and breakage of the carbon collector 40 can be prevented.

That is, when the rail bar 10 is bent in either the left or right direction due to an external factor, the rotation bracket 62, which is the horizontal holding member 60, rotates left and right on the support frame 64, The carbon collectors 40 inserted in the insertion guide grooves 32 of the rail 10 are caused to flow in the direction of bending of the rail bars 10 to prevent the carbon collectors 40 from being separated or damaged .

When the rail bar 10 is bent downward, the first and second arms 72 and 74 which are the vertical flow members 70 are rotated downward about the pins 72a and 74a of the fixing table 80 The spring 76 resiliently supports the carbon collectors 40 and thereby supports the carbon collectors 40 so that the carbon collectors 40 are continuously grounded to the rail bars 10 without being damaged even if the rail bars 10 are deflected. .

10: rail bar 20: upper frame
30: guide frame 32: insertion guide groove
40: Carbon collector 50: Collector
60: Horizontal flow member 70: Vertical flow member
80:

Claims (8)

A rail bar for a crane that is grounded with a carbon collector (40) of a current collector and supplies electricity to the crane,
An insertion guide groove 32 for inserting the carbon collectors 40 is formed at a lower end of the rail bar 10;
The rail bar (10) comprises:
An upper frame (20);
And a guide frame (30) coupled to the lower portion of the upper frame (20) and having the insertion guide groove (32) formed at the lower end thereof;
A hooking protrusion 22 protrudes from both sides of the lower end of the upper frame 20 and an upper end of the guide frame 30 is formed with a hooking groove 34 for hooking the hooking protrusion 22, The upper and lower side surfaces 36 of the guide frame 30 on which the grooves 34 are formed are pushed inward to form a shape;
The upper frame 20 is formed of steel or aluminum or one of brass or copper;
The guide frame 30 is made of copper (Cu);
The crane further includes a collector (50) for elastically supporting the carbon collector (40);
The collector (50) comprises:
A rotating bracket 62 having a receiving portion 61 for receiving the carbon collectors 40 at the center and being connected to both sides of the carbon collectors 40;
And a support frame 64 for supporting the rotation bracket 62 so as to be rotatable in the left and right directions and to be connected to the carbon collectors 40 in accordance with the left and right bending directions of the rail bars 10 The rotation of the rotation bracket 62 causes the left and right rotation of the carbon bracket 62 on the support frame 64 so that the carbon current collector 40 can flow left and right, A flow member (60);
A first arm 72 having one end connected to the support frame 64 of the horizontal flow member 60 and the other end connected to the fixing base 80 with a pin 72b;
74b are coupled to the support frame 64 and the fixing table 80 in the state where the first arm 72 is formed in the same shape as the first arm 72 Two arms 74;
One end of the first arm 72 is engaged with the fixing pin 76a coupled to the first arm 72 and the other end of the first arm 72 is engaged with the fixing pin 76b of the second arm 74 A vertical flow member 70 for elastically supporting the pressure applied to the carbon collectors 40 due to the downward deflection of the rail bar 10, Wherein the rail bar is fixed to the rail.


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