KR100769458B1 - Apparatus for emergency traveling of over head crane - Google Patents

Abstract

The present invention relates to an overhead crane emergency traveling device capable of emergency driving to a maintenance place when the overhead crane carrying heavy goods while moving along a rail in a predetermined track does not travel beyond the traveling device.

The present invention relates to a device in which a overhead crane with a guider moves along a rail and in which the overhead crane, in which the overhead crane, which is normally operated by the operation of the driving brake, is driven by emergency driving, is mounted on the one side guider and the cylinder Coupling portion is a linear movement; A hanger unit installed at the other guider and connected to a hanger hole of the coupling unit through a hanger; An emergency opening unit installed between the lever and the plate of the driving brake to emergencyly open the driving brake; A coupling unit and an emergency opening unit operating unit for operating the coupling unit and the emergency opening unit; And an operation panel for controlling the operation of the hook unit, the coupling unit, and the emergency opener operation unit through a plurality of switches and lamps, and displaying the operation.

Overhead crane, traveling brake, coupling stand, hanger, emergency opener

Description

Apparatus for emergency traveling of over head crane

1 is an installation state diagram of a conventional overhead crane.

FIG. 2 is a front view of the traveling brake of the overhead crane shown in FIG. 1. FIG.

Figure 3 is an emergency driving situation of the conventional overhead crane.

Figure 4 is an installation state of the overhead crane emergency driving apparatus according to an embodiment of the present invention.

5 is a front view showing a fastening state of the coupling portion and the hook portion in the overhead crane emergency traveling device of the present invention.

Fig. 6 is a front view showing the engaged state with the traveling brake of the emergency release unit of the present invention.

Figure 7 is a perspective view showing the configuration of the coupling portion in the present invention.

Fig. 8A is a perspective view showing the structure of the hanger base in the present invention.

Fig. 8B is an exploded perspective view showing the structure of the hanger base in the present invention.

Fig. 9A is a perspective view showing the configuration of the emergency opening unit in the present invention.

9B is an exploded perspective view of the configuration of the emergency opening unit according to the present invention;

Figure 10a is an operation of the overhead crane emergency running device of the present invention.

Fig. 10B is a front view showing the operation panel in the present invention.                 

<Explanation of symbols for main parts of drawing>

1: combined loan 2: hanger loan

3: emergency opening unit 4: coupling unit and emergency opening unit operation unit

5: operation panel 6: overhead crane

8: traveling brake 1-a, 3-a: cylinder

1-b: arm 2-a: hook

3-b-1: Roller 4-b: Compressor

4-f: Euler 5-b: Selector Switch

The present invention relates to an overhead crane emergency traveling device, and in particular, when the overhead crane carrying heavy loads moving along a rail in a predetermined track does not travel beyond the traveling device, the overhead crane emergency can be driven to the maintenance place. It relates to a traveling device.

Generally, as shown in FIG. 1, the overhead crane 6 is a large facility that carries heavy materials while moving along a rail 10 within a constant track of a factory. The overhead crane of an ironworks is one line according to each process. Usually, two or more units are installed in the ship to transport molten iron, molten steel, slab, coil, and the like.

These overhead cranes are to work adjacent to each other during the transportation work. If the overhead crane does not run due to the abnormalities of the traveling device such as a motor, a reducer, a driving brake, and electrical equipment, other overhead cranes will not be able to proceed due to their interference. In this case, as shown in Figure 3, as the emergency measures, the overhead crane (6-A) that is normally operated should push the other overhead crane (6-B) that is not operated to make an emergency run to the place where it does not interfere.

For the emergency driving, as shown in FIG. 2, the driving brake 8 is unscrewed using a tool to release the release nut 8-j and the stroke nut 8-f, and thus the post 8-e and the shoe 8 -b) spreads together, causing the lining 8-c to be spaced apart from the brake drum 8-a forcing manual opening. By the way, the traveling brakes 8 are different depending on the characteristics of each overhead crane, but usually four are installed, so that the driver must manually open the tool by the tool, which takes a lot of work time and the brake drum (8-a) The lining (8-c) spacing must be precisely adjusted, but if this spacing is not precise, recalibration is required.

If each brake is not adjusted to the same torque, there is a risk that the crane will meander, and it takes a lot of time to adjust the brakes, which delays the normal work, and causes a large accident due to the driver's inexperience or misoperation during emergency driving. There was a problem that could cause.

The present invention has been made to solve the above-described problems of the prior art, when the overhead crane does not travel beyond the traveling device, the other overhead crane that is not normally operated does not interfere with the operation of the overhead crane The purpose is to provide an overhead crane emergency driving device that can be quickly and safely emergency driving to the place.

According to the present invention for achieving the above object, in the device for moving the overhead crane with a guider and moving along the rail and the other overhead crane lifted by normal operation by the operation of the driving brake by emergency driving, A coupling unit installed on one of the guiders and configured to linearly move the cylinder; A hanger part installed in the other guider of the guiders and connected to the hanger hole of the coupling part through a hanger; An emergency opening unit installed between the lever and the plate of the driving brake to emergencyly open the driving brake; A coupling unit and an emergency opening unit operating unit for operating the coupling unit and the emergency opening unit; And an operation panel for controlling the operation of the hook unit, the coupling unit, and the emergency opener operation unit through a plurality of switches and lamps, and displaying the operation thereof. There is provided an overhead crane emergency traveling device comprising a.

Preferably, in the present invention, the coupling unit has a first base having an arm upright sensor sensed by an arm upright striker, and a hook hole is formed at one end thereof, and the hook bar cam has a predetermined distance from the hanging up hole. Attached and attached to the other side of the arm is attached to the plate, the rear end is configured to include a first cylinder coupled to one side of the upper surface of the first base and the front end is coupled to the connecting plate, one end of the arm is the hook A hook coupling detector is attached to a position opposite to the hole, and the first base is attached to an arm depression detector for detecting lying down of the arm through an armhole detection striker.

In addition, in the present invention, the hook portion has a bearing embedded in the center portion, the hook is attached to the hook at the bottom, and one side is connected to the hook through the shaft and the other side includes a support coupled to the second base do.

In addition, in the present invention, the emergency opening unit has a third base attached to the upper surface of the driving brake, a lower end is coupled to the third base and the front end is coupled to the lower portion of the roller support and the roller support, A roller connected to an upper end of the fixed plate, and a fixed plate coupled to a connection plate attached to a lower side of the second cylinder, and a movable plate coupled to an upper side of the fixed plate, on one side of the fixed plate. , The lower end is attached to the brake opening and closing detector for detecting that the driving brake is open or closed, the lower side of the movable plate is characterized in that the detector cam for operating the brake opening and closing detector is attached.

In addition, in the present invention, the coupling unit and the emergency opener operation unit is connected to a drive motor to blow out air, a filter connected to the compressor, a regulator and a pressure gauge connected to the filter, an oiler connected to the regulator, It is configured to include an air discharge relief valve and an air pressure sensing pressure gauge connected to the oiler, the first relief valve and pressure gauge on one side is connected to the first solenoid valve and the speed control means for operating the first cylinder In addition, the relief valve and the pressure gauge on the other side is characterized in that the second solenoid valve for operating the second cylinder and the pushbutton valve for checking the driving brake, respectively.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the overhead crane emergency traveling device of the present invention.

4 to 10 shows an embodiment of the overhead crane emergency traveling device of the present invention, the overhead crane emergency traveling device according to this is largely installed on one side of the guider and the linear coupling of the cylinder is made; A hanger unit installed at the other guider and connected to the hanger hole of the coupling unit through a hanger; An emergency opening unit installed between the lever and the plate of the driving brake to emergencyly open the driving brake; A coupling unit and an emergency opening unit operating unit for operating the coupling unit and the emergency opening unit; It consists of an operation panel which controls the operation of the hanger unit, the coupling unit and the emergency opener operation unit and displays the operation through a plurality of switches and lamps.

As shown in FIG. 4, two coupling units 1-A and 1 -B are installed on both left and right sides of the guider 9 -A. As shown in FIG. 7, a first base 1-c having a predetermined length having a 'c' shaped cross section is attached to the guider 9-A, and the first base 1-c as viewed from the side. A pair of semi-elliptic brackets (1-l) is attached to one side of the upper surface of the upper surface of the upper surface of the upper surface of the first cylinder (1-a), which has a linear motion. Are combined.

In addition, an arm sensor (1) is a lever type limit switch that detects an upright state of an arm (1-b) to be described later at a predetermined distance from one side of the bracket (1-l). -i) is attached to the base 1-c, and the pin is attached to the arm sensor detector striker 1-j for actuating the arm sensor 1-i.

In addition, the end of the cylinder rod (1-k) of the first cylinder (1-a) is pin-coupled to the bracket (1-n) attached to the central portion of one side of the connecting plate (1-b-1) to the cylinder ( It is connected to the arm (1-b) lying down or standing by the linear motion of 1-a, wherein the connecting plate (1-b-1) is a rectangular shape and has an elliptical hook hole (1-e) at one end thereof. ) Is formed, a semi-circular hook bar cam 1-d is attached to the hook hole 1-e at a predetermined distance, and a square shape is formed on the other side of the connecting plate 1-b-1. As an arm, an arm 1-b having a predetermined length is attached.

In addition, one end of the arm (1-b) is pin-bonded between a pair of brackets (1-m) attached from the other side of the upper surface of the base (1-c), the other end of the arm (1-b) The hook coupling detector 1-f, which is a lever-type limit switch for detecting whether the hook 2-a, which will be described later, is coupled to the position opposite to the hook hole 1-e, is attached.

In addition, an arm sedentary detector (1-g), which is a lever-type limit switch that detects lying down of the arm (1-b) at a predetermined distance from the bracket (1-m), is connected to the base (1-c). Is attached to the arm (1-b) is attached to the arm snooping striker (1-h) for operating the arm snag detector (1-g).

As shown in FIG. 4, the hanger unit 2 is also provided with two units 2-A and 2-B on both left and right sides of the guider 9 -B, but shown in FIGS. 5, 8A and 8B. As shown in the drawing, a bearing (2-k) is built in the center of the hook to facilitate rotation, and a hook bar (2-b) contacting the hook bar cam (1-d) is provided at a lower end thereof. The attached hook 2-a is supported by the shaft 2-d at one side of the support 2-c, but the other side of the support 2-c is 'b' It is connected to the second base 2-e having a shape of a magnet and attached to the guider 9-B by bolts and nuts.

The emergency opening unit 3 is installed between the lever 8-h and the plate 8-m of the above-described driving brake 8, as shown in FIG. 6, but shown in FIGS. 9A and 9B. As described above, a pair of semicircular third bases 3-g are attached to the upper surface of the plate 8-m of the traveling brake 8 at predetermined intervals, and the lower end of the second cylinder 3-a The roller support (3-k) is pin-coupled between the third base (3-g), and the tip of the cylinder rod (3-k) of the second cylinder (3-a) has an approximately 'TT' shape cross section. It is pinned to the bottom of b).

Further, after the roller (3-b-1) having a bearing (not shown) is inserted into the guide hole 8-k formed in the lever 8-h of the driving brake 8, It is connected to the upper end of the roller support (3-b), a square connecting plate (3-l) having a bolt hole is attached to the lower side of the cylinder.

In addition, a lower portion of the rectangular parallelepiped fixing plate 3-c is bolted to the bolt hole of the connecting plate 3-l, and a driving brake is formed on one side of the fixing plate 3-c on the lower side. Brake open and close detectors 3-e and 3-f, which are lever limit switches that detect 8) open or closed, are attached.

In addition, a movable plate 3-d having an elliptical induction hole 3-i formed on an inner surface of a rectangular parallelepiped shape is connected to the upper bolt hole of the fixing plate 3-c through a connecting bolt 3-j. It is coupled, the lower side of the movable plate (3-d) is attached to the detector cam (3-h) for operating the brake open and close detectors (3-e, 3-f).

As shown in FIG. 10A, the coupling table and the emergency opening unit operating unit 4 are connected to a compressor 4-b for blowing air to a driving motor 4-a for generating power. In addition, a filter (4-c) for removing water and steam is connected to the compressor (4-b), and a pressure adjusting means, that is, a regulator (4-d), for the filter (4-c). ) And pressure gauge (4-e) are connected respectively.

In addition, the regulator 4-d is connected with an oiler 4-f that protects the cylinders 1-a and 3-a, and the oiler 4-f discharges air. Means for sensing the pressure, that is, relief valves (4-g-1, 4-g-2) for discharging air, and pressure gauges with contacts (4-h-1, for sensing air pressure) 4-h-2 are connected to each other, and the one-side relief valve 4-g-1 and the pressure gauge 4-h-1 connect the first cylinder 1-a of the coupling part 1 to each other. To operate and to regulate the speed of the cylinder rod (1-k), the first 5 solenoid valve (4-i) and the speed controller (4-j-1, 4-j-2) are connected respectively.

In addition, the second relief valve (4-g-2) and the pressure gauge (4-h-2) is a three-port type second solenoid valve for operating the second cylinder (3-a) of the emergency opening unit (3) (4-k) and a push button valve 4-l for use in the inspection of the traveling brake 8 are connected.

As shown in FIG. 10B, the operation panel 5 includes a pushbutton switch 5-a for operating the drive motor 4-a, a coupling unit 1 and an emergency opening unit 3. A selector switch (5-b) which is a selection switch, a hook coupling confirmation lamp (5-c) for confirming whether the coupling base (1) and the hook base (2) are coupled, and the arm ( Arm-aware confirmation lamp (5-d) and arm-righteousness confirmation lamp (5-e) for confirming the position and standing of 1-b), the emergency opening confirmation lamp (5-f) of the driving brake (8), A closing confirmation lamp (5-g) of the travel brake (8).

Hereinafter, the operation of the overhead crane emergency traveling device of the present invention having the configuration as described above.

When the overhead crane does not travel due to the abnormality of the traveling device in the process of transporting heavy goods through the overhead crane, as shown in FIG. When the pushbutton switch 5-a of the operation panel 5 installed in the moving overhead crane is “ON”, the drive motor 4-a is operated to operate the compressor 4-b to produce air. Done.

Subsequently, when the driver selects the selector switch 5-b toward the engaging table, the first solenoid valve 4-i is opened to supply air to the first cylinder 1-a and the cylinder rod 1-k. The arm (1-b), which is in the upright position, is laid down, and the arm sedentary striker (1-h) activates the arm sedentary detector (1-g) so that the arm segregation confirmation lamp (5-d) lights up. The driver notices that the arm 1-b is completely laid down.

Thereafter, when the hook bar cam 1-d pushes the hook bar 2-b of the hook base 2, the hook bar 2-a rotates. While being coupled to the hook hole (1-e) of the coupling portion (1), when the hook (2-a) is in contact with the hook coupling detector (1-f), the hook coupling confirmation lamp (5-c) is turned on The driver can confirm that the coupling unit 1 and the hook unit 2 are coupled as shown in FIG. 5.

Thereafter, when the driver of the overhead crane who is operating normally contacts the driver who cannot operate, the driver “ON” the pushbutton switch 5-a installed in the crane that cannot operate, and accordingly the compressor 4-b. Produces air while the operator selects the selector switch 5-b to the manual opener, opening the second solenoid valve 4-k and supplying air to the second cylinder 3-a. When the rod 3-k rises and the lever 8-h of the traveling brake 8 is pushed, the roller 3-b-1 rises along the guide hole 8-k and the lever 8-h ) Pushes the brake spring 8-g, the post 8-e opens outwards, and the shoe 8-b opens with the lining 8-c spaced apart from the brake drum 8-a. .

At this time, when the driver operates the brake open detector 3-e through the detector cam 3-h, the emergency opening confirmation lamp 5-f lights up to confirm that the brake is opened as shown in FIG. The overhead crane operator, who is not able to operate, will contact the normally operating overhead crane operator to make an emergency run to the place where the operation is not disturbed and maintenance and inspection can be performed.

At this time, since the compressor (4-b) continues to produce air, when the pressure exceeds a certain pressure, the pressure gauges with contact (4-h-1, 4-h-) to protect the cylinders (1-a, 3-a) 2) detects when the pressure exceeds the appropriate pressure and discharges air to the atmosphere through the relief valves (4-g-1, 4-g-2).

On the other hand, after the emergency driving to the place where the work is not interrupted quickly and safely, if the overhead crane driver who cannot operate places the selector switch (5-b) in the neutral position, the outlet of the second solenoid valve (4-k) As the air is discharged to the atmosphere, the cylinder rod (3-k) is lowered, and the lever (8-h) and the brake rod (8-i) of the driving brake (8) are also lowered together to close the driving brake (8). The driver can know that the driving brake 8 is closed by turning on the driving brake closing check lamp 5-g when the sensor cam 3-h contacts the brake closing detector 3-f. After that, the power pushbutton 5-a for the driving motor 4-a may be " OFF ".

In addition, when the overhead crane driver is operating normally, the hanger bar cam 1-d falls off the hanger bar 2-b when the overhead crane is slowly driven to the opposite side of the lifter that does not operate the crane. While rotating, it is separated from the hook coupling detector 1-f. At this time, when the hook coupling confirmation lamp 5-c goes out, the driver knows that the coupling is disassembled, and when the selector switch 5-b is put in neutral, the first Since the solenoid valve 4-i is closed and the air supply to the first cylinder 1-a is stopped, the cylinder rod 1-k returns to its original state.

In addition, the arm (1-b) is erected and when the arm sensor detector striker (1-j) operates the arm upright detector (1-i), the arm up confirmation lamp (5-e) is turned on so that the driver It is confirmed that 1-b) is erected, and the pushbutton switch 5-a of the drive motor 4-a is "OFF" and the normal operation is continued.

In addition, the emergency opening unit (3) can be used to adjust the distance between the brake drum (8-a) and the lining (8-c) of the driving brake (8), or to replace the lining (8-c) in normal times, the operation method The brake 8 is the same as the emergency opening method, except that the driver uses the pushbutton valve 4-1 attached to the emergency opening unit 3 by himself, and when the pushbutton valve 4-1 is pressed, the air is cut off. When the cylinder rod (3-k) is lowered and the pushbutton valve (4-1) is released, air is supplied again and the cylinder rod (3-k) is raised. Therefore, the driving brake (8) can be checked by the driver alone. have.

As described above, according to the present invention, the non-operating overhead crane can be safely and quickly driven by combining the normally-operating overhead crane with the non-operating overhead crane, and the driving brakes can be opened simultaneously. It saves time in emergency opening of the brake, and there is an effect of preventing a safety accident since the operator does not have to move around for work.

In addition, there is an effect that it is possible to reduce the time required to return the traveling brake to the original, and one worker can easily check the traveling brake.

Claims (5)

The overhead cranes 6A, 6B with guiders 9A, 9B move along the rails 10 and push the other overhead cranes in which the overhead cranes, which are normally operated by the operation of the driving brakes 8A-8D, are deactivated. In the emergency driving apparatus, A coupling unit (1) installed at one side of the guiders (9A) and performing linear movement of the first cylinder (1-a); A hanger part (2) installed in the other guider (9B) of the guiders and connected to the hanger hole (1-e) of the coupling part (1) through a hanger (2-a); An emergency opening unit (3) installed between the lever (8-h) and the plate (8-m) of the driving brake to emergencyly open the driving brake; A coupling table and an emergency opening unit operating unit 4 for operating the coupling unit 1 and the emergency opening unit 3; And A plurality of switches (5-a, 5-b) and lamps (5-c, 5-g) control the operation of the hanger unit (2), the coupler and the emergency release unit operating unit (4). An operation panel 5 in which an operation is displayed; Ceiling crane emergency traveling device comprising a. The method of claim 1, The coupling unit 1 includes a first base 1-c having an arm seum detector 1-i detected by the arm seismic striker 1-j, and a hook hole 1-e at one end thereof. Is formed, the hook bar cam 1-d is attached to the hook hole at a predetermined distance, and the connecting plate 1-b-1 having the arm 1-b attached to the other side thereof, and the rear end thereof It is configured to include a first cylinder (1-a) coupled to one side of the upper surface of the first base (1-c) and the front end is coupled to the connecting plate (1-b-1), A hook coupling detector 1-f is attached to one end of the arm 1-b opposite to the hook hole 1-e, and an arm separation detector striker is attached to the first base 1-c. The overhead crane emergency traveling device, characterized in that attached to the arm lie detector (1-g) for detecting the lying down of the arm (1-b) through (1-h). The method of claim 1, The hook portion 2 has a bearing (2-k) in the center portion, a hook (2-a) attached to the hook bar (2-b) at the lower end, and one side through the shaft (2-d) The overhead crane emergency traveling device, characterized in that connected to the hook (2-a) and the other side includes a support (2-c) coupled to the second base (2-e). The method of claim 1, The emergency opening unit 3 has a third base (3-g) attached to the upper surface of the plate (8-m) of the driving brake, the lower end is coupled to the third base (3-g) and the front end is a roller support A second cylinder 3-a coupled to a lower portion of 3-3-b, a roller 3-b-1 connected to an upper end of the roller support 3-b, and the second cylinder 3-a; Including a fixing plate (3-c) coupled to the connecting plate (3-l) attached to the lower one side of the), and a movable plate (3-d) coupled to the upper side of the fixing plate (3-c) Composed, Brake open and close detectors 3-e and 3-f are attached to upper and lower ends of one side of the fixing plate 3-c to detect that the driving brake is open or closed. On the lower side of d) overhead crane emergency traveling device, characterized in that the detector cam (3-h) for operating the brake open and close detectors (3-e, 3-f) is attached. The method of claim 1, The coupling table and the emergency opener operating part 4 are connected to the driving motor 4-a, and the compressor 4-b ejects air, and the filter 4-c connected to the compressor 4-b. And a regulator 4-d and a pressure gauge 4-e connected to the filter 4-c, an oiler 4-f connected to the regulator 4-d, and an oiler 4-f. Air relief valve (4-g-1, 4-g-2) and air pressure sensing pressure gauge (4-h-1, 4-h-2) connected to the One side of the relief valve 4-g-1 and the pressure gauge 4-h-1 has a first solenoid valve 4-i for operating the first cylinder 1-a and a cylinder rod 1-k. Speed controllers (4-j-1, 4-j-2) for adjusting the speed of) are connected, and the relief valve (4-g-2) and the pressure gauge (4-h-2) on the other side are connected. 2. The overhead crane emergency traveling device according to claim 2, wherein a second solenoid valve 4-k for operating two cylinders 3-a and a pushbutton valve 4-l for checking the driving brake 8 are respectively connected.

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