DE19840687A1 - Vehicle-mounted handling device for heavy slag or liquid metal containers - Google Patents

Abstract

The handling device is for lifting, tipping, depositing of a container with lifting journals. The device has tipper arms with lifter parts (13) to engage with the journals. The lifters are freely turnable and are held in a defined relative position to the journals by a locking device (17), for lifting or after lifting of the container (1). The lifters are formed by crane- type hooks, or by rings. The inner parts of the rings in contact with the journals are born in outer parts via slide or roller bearings.

Description

The invention relates to a device for moving a container, especially a heavy metallurgical vessel and a vehicle for moving heavy metallurgical vessels.

From the German utility model DE 297 10 956 U is a vehicle known that is intended for moving heavy metallurgical vessels. The vehicle has a rocker arm with which the vessel is off the ground raised and placed on a platform of the car, as well as in a Tilt position and an overhead position can be pivoted. This metallurgical vessel, e.g. B. a slag container must on the one hand in a as far as possible vertical position and after the recording, on the Vehicle can be lifted without the contents of the vessel, liquid slag in an amount of, for example, 100 t at a temperature of 1000 ° C or more, sometimes spills out of the container and damages the vehicle. To for this purpose the rocker arm is at its flying end with a fork equipped, which allows pegs attached to the container on both sides partially enclose and thus move the vessel. By means of hydraulic cylinders this rocker arm is both pivoted into the position shown after the vessel is picked up and can also be in a 130 ° or more Empty the container in the tilted position, as well as in the 180 ° position place its opening on the floor. In the latter position the Slag containers can be completely emptied, even cooling and slag adhering to the container falls off. The rocker arm itself is in one Pivot bearing mounted at the end of the vehicle. The vehicle is used during the Loading and unloading supported by a rear support.  

A similar vehicle is known from the patent DE 36 05 665 C2. The Tilting device also includes a locking and support device for the Edge of the slag container. This support device can after receiving the Functioning slag container and its positioning on the vehicle be placed and thus allows the container to tilt by placing it in holds a certain position relative to the tilting device.

Common to both devices and vehicles is a problem. To Picking up the container from the ground behind the vehicle and during the Swiveling the container on the vehicle must be the pin in the Turn the tilting device so that the container is in the vertical direction and Horizontal direction is aligned so that no slag spills over. The Pins of the container rest in an opening of the tilting device and form there a friction pairing with the fork. This friction is due to the container to overcome when swinging out while picking up the container. This works better the lower the center of gravity of the filled container lies. The frictional forces create a distance between the radius of the pin Force moment caused by the weight of the container at a distance from Pin axis generates a restoring moment. Is that due to the moment Friction forces greater than the restoring moment, the container fails level off and he has an inclination that leads to the discharge mentioned the slag can lead.

The prior art according to DE 36 05 665 C2 does not prevent the Slag because the container is supported by the additional support device Carriage not in vertical or desired during the recording movement Horizontal position is maintained.

The above-mentioned state of the art according to the German Utility model has no device that can correct the position Allows container. Try to apply the friction by hand Reducing lubricants has not been successful.  

In practice there is still a tilting and swiveling device for heavy ones Container known, which has a similar support as in the cited German patent. The receiving part of the rocker arm is in this case trained as a crane hook and hangs on one by hydraulic cylinders supported lever arrangement. However, this device is not suitable Empty the container or put it upside down and the support relieves the load Hydraulic cylinder only during the horizontal transport of the container.

From the published patent application DE 44 03 350 A1 is a vehicle with a Known tilting device that a receptacle of a slag container and which allows tilting with an inclination of approximately 130 °. The recording part of the The tilting device or the tilting arm is provided with a closing element or locking bracket, which is designed in the manner of a crane hook, in principle, however, only a locking function and locking function for has the pin on the tilting device. The striker only takes over not part of the weight of the container during the tipping process however, when it was recorded.

Therefore, the problem arises for the invention, a possibility for vertical swinging out of a container, especially a heavy one to create a metallurgical vessel, the functions, recording, Lifting, emptying and lowering the container are guaranteed.

The problem is solved according to the invention by claims 1, 7 and 8. Further developments of the invention are covered in the subclaims.

In factories, especially metallurgical factories, such as steelworks are often metallurgical vessels, e.g. B. for slag transport or Transport of liquid metal in use. These vessels are very durable and partly acquired over decades. Depending on Transport equipment may have played the focus or location  the axis of gravity relative to that on the vessels Transport pins do not matter. Because in the past in particular Vessels were often placed on railway wagons by crane. Nowadays, however, heavy goods vehicles are increasingly used are roadworthy for the transport of such metallurgical vessels used. In this case, regardless of the position of the center of gravity Vessels to ensure that these containers are also received without damage, can be emptied and put down again.

For this purpose, the invention provides in a first solution that tilting device arranged on the vehicle, which at the same time can be picked up, Lifting, tipping and setting down the container is also suitable overhead to design that the container arranged by means of a tilt arm Receiving part for the pin on both sides, which above the Center of gravity of the container are arranged so that the Receiving parts are freely rotatable and additionally by means of a Lock after receiving the container in positive engagement with the pin being held.

Due to the free rotatability of the receiving part, for. B. by this in Plain bearing or roller bearing, it is ensured that the Containers always level out after lifting using the receiving part, that the container contents do not spill over.

The receiving part can be designed in the manner of a crane hook, the stored like a crane hook in the tilting device above the hook part is, e.g. B. in plain bearings. The fact that with the help of the hook the distance to The axis of gravity of the container is increased, the restoring moment of the Container much larger than in conventional devices.

In a further training of the receiving part, this is a ring  or formed part of the ring, wherein the contacting the pin Inner parts of the ring by means of plain bearings or roller bearings in an outer part of the ring are stored. In this case there is no need for an extended one Low-leverage because the storage makes it easier to overcome the friction. In usually a plain bearing will be used or specially trained Rolling bearings that can withstand the radiated heat from the vessel.

In another development of the invention, the inner part or the inner parts of the receiving part equipped with freely rotatable rollers, so that the pin is in these roles and so only has rolling friction, so that Swinging out of the vessel is made easier.

The receiving parts, in particular in the form of a ring, can on the Tilting arms can also be mounted so that they are on the side, i.e. from the front of the Cone here, adjusted towards each other towards the center of the vessel and thereby over the Cones are put over.

The locking of the receiving part is also attached to the rocker arm in a constant distance from that intended for the reception of the pin Part of the device, this locking as a movable mandrel z. B. means Fluid cylinder movable, designed and working behind the Receiving part engages so that the receiving part does not differ from the pin of the Container can move away or the hook in the desired Situation persists.

The invention further relates to a vehicle for moving such heavier metallurgical vessel, which with a device according to the invention Is provided.

In a second solution, the journal itself with a plain bearing or Rolling bearing provided, the outer ring of the receiving part when moving  of the container is enclosed. This warehouse can be used as a separate part alone or be put over the spigot of the receiving part or firmly on Be attached. The pin friction is thus in an intermediate link, the camp, minimized. If the bearing is permanently installed, the pin can be secured with a Lubrication device for the bearing, which is from the front of the Pin is operable here and reaches through the pin to the bearing.

The invention will be explained in more detail with reference to a drawing. The following are shown in schematic form:

FIG. 1 is a mountable on a vehicle tilting device for receiving and moving a slag receptacle;

FIG. 2 vehicle with a tilting device according to FIG. 1 with two loading positions of the container;

Fig. 3, a first tilting position of the container and the apparatus;

Fig. 4 shows a second tilting position of the container and the apparatus;

Fig. 5 overhead position of the device and the container;

Fig. 6 section XX of FIG. 1 through part of the device.

According to Fig. 1 is a tilting device for receiving and moving a slag container 1 is disposed on a respective carrier vehicle 6 and consists essentially of two mounted on both sides of the carrier vehicle and torsionally stiff interconnected rocker arms 7, actuated by means of hydraulic tilt cylinder 8, wherein the bearings 9 are arranged for the rocker arms at the end of the vehicle frame.

An additional tipping device 10 for the complete emptying of the vessel 1 is attached to the tipping arms. This is also moved via two hydraulic actuating cylinders 11 , which are attached to the rocker arm 7 . At the same time, the additional tilting device 10 comprises a locking mechanism in the form of two hydraulic locking cylinders 12 , which can positively engage in pockets 16 on the container.

On the rocker arm 7 , a receiving part is freely rotatable, designed in the manner of a crane hook 13 . The massive hook is arranged to the center of the vehicle overhung on the tipping arms and connected to the bearing 14 with the latter. Due to the free mobility of the hook 13 , the container 1 swings even when its center of gravity 2 ( FIG. 6) is just below the axis of the pin 3 of the vessel 1 . The hook 13 and the vessel 1 practically form a unit because of the frictional forces between the pin and the receiving part 13 . The common pivot point for the hook and the vessel is now the bearing 14 in the tilt arm 7 . As a result, the distance between the center of gravity and the effective storage of the vessel is correspondingly increased and the restoring moment due to the gravity of the bucket is increased accordingly, so that the vessel together with the hook always remains vertical during the movement until it is deposited on the vehicle. Based on the various functions of the device or the vehicle with reference to FIGS. 2 to 6, the function of the device and the vehicle is clear.

For the receptacle of the container on the vehicle according to FIG. 2 (position A), it moves backwards to a vessel standing on the floor or on a pedestal, e.g. B. a slag bucket 1 . The tilting device is extended via the two lateral tilting cylinders 8 . The hook 13 then hangs down behind the receiving pin of the bucket 3 . The vehicle moves forward until the hook 13 surrounds the pin 3 in the manner shown and the hook bearing 14 lies approximately in the middle above the pin 3 . The vehicle now extends its rear-side support 15 in order to avoid tipping around the rear wheels of the vehicle when the heavy-weight bucket is raised. The tilt cylinders 8 move the tilting device with the bucket attached to it into the position (position B) in which the bucket is shown on the vehicle. During the sequence of movements from the bottom position of the bucket to the position on the vehicle, the bucket always swings out, so that no slag can flow out.

According to FIG. 3, after the support 15 has been extended again, the tipping process for the container can be initiated at the unloading point. For this purpose, the already mentioned locking cylinder 12 are retracted the Zusatzkippvorrichtung 10 arranged in the container pockets 16 and thus the mobility is - the pivoting of the container - between rocker arm 7 and the slag container 1 blocked.

In addition, two locking cylinders 17 , additionally attached to the tilting arms, comprising a mandrel acted upon by a fluid cylinder, are extended, which block the hook 13 to the tilting arm and at the same time relative to the bucket, by, as shown in FIG. 6, the outer edge of the receiving part 3 or whose part 21 engages behind and thus limits the mobility of the receiving part 13 relative to the pin 3 . Now the two tilt cylinders 8 are extended and the tilting device rotates the bucket into a position of 130 ° as shown in FIG. 3 by the predetermined kinematics and thus empties the slag container.

For the complete emptying Fig 4 the container is in accordance. Tilted further, so that finally its opening facing downward. For this purpose, the hydraulic actuating cylinders 11 of the additional tilting device 10 are extended in order to reach this position. With the help of these cylinders, the container is pressed into the end position (overhead position) via the pivot point 18 on the tilt arm. The synchronous movement of the additional tilting device 10 on both sides of the container is ensured by a torsionally rigid connecting rod 23 .

After the container has been emptied, it is to cool down as a rule, for this purpose the bucket is pivoted back into the position shown in FIG. 2 on the vehicle and brought into the position shown in FIG. 5 and set down at the storage location. Fig. 5 also shows the position that the tipping device takes on the vehicle when such a set container is to be picked up again. For this purpose, in the position shown, the hook (covered by the tilting device) is pushed over the pin 3 , in which the vehicle travels backwards and then locks the locking cylinders 12 in the aforementioned pockets 16 on the container 1 . In this position, too, the locking cylinders 17 for the hooks are of course extended, since here too the hook must be held in position in order to be able to grip around the pin. The lock 17 does not have the function here of holding the hook on the pin since the slag container is now empty. After gripping the pin, the tilting device can be moved backwards by means of the tilting cylinder 8 so that the container finds its place (position B in FIG. 2) on the vehicle.

Fig. 6 1 shows a detail according to section X-X in Fig. 13 of the receiving part, as it is in active operation with the pin 3 of the container 1. The receiving part 13 has a part 20 inside which carries the pin as a partial ring welded to the receiving part.

According to a further development of the invention, which is not shown, the part 20 can be slidably mounted or roller-mounted in the outer part 21 of the receiving part. This can be done in a similar manner, as shown, on the journal bearing 14 of the receiving part 13 , which is freely rotatable relative to the rocker arm 7 . The aforementioned pin bearing 18 is also attached to this rocker arm 7 , as well as the movement device and the locking pin 17 .

In another variant, not shown, the pin 3 can also rest in the opening 22 of the receiving part 13 in a roller bearing, which then replaces the inner part 20 of the receiving part 13 shown here.

Claims (8)

1. Device for receiving, lifting, tilting and depositing a container which has receiving pins arranged above its center of gravity on both sides, with tilting arms which have receiving parts which can partially wrap around the pins, characterized in that the receiving parts ( 13 ) are free are rotatably mounted and are held in a defined relative position to the pin by means of a lock ( 17 ) after or for receiving the container ( 1 ). 2. Device according to claim 1, characterized in that the receiving part is designed as a hook ( 13 ) in the manner of a crane hook. 3. Apparatus according to claim 1, characterized in that the receiving part ( 13 ) is designed as a ring or part of a ring whose inner parts ( 20 ) contacting the pins ( 3 ) are mounted in an outer part ( 21 ) by means of slide bearings or roller bearings. 4. The device according to claim 3, characterized in that the inner parts ( 20 ) are designed as freely rotatable rollers. 5. Device according to one of the preceding claims, characterized in that the rocker arm (7) and the lock (17) is mounted and a movable mandrel comprises the constant distance at a certain for receiving the pin (3) opening (22 ) in the receiving part ( 13 ), which engages behind the receiving part. 6. Device according to one of the preceding claims, characterized characterized in that the receiving parts than from the front of the The cone can be slipped over the cones towards the center of the container Arrangements are formed.   7. Vehicle for moving a heavy metallurgical vessel ( 1 ), equipped with a device according to one of claims 1 to 6. 8. Device for picking up, lifting, tipping and setting down a Container that is on both sides above its center of gravity arranged mounting spigot, with tilting arms that This has receiving parts that can partially wrap around the pins characterized in that the pin is provided with a rotary bearing, whose outer rotatable ring from the receiving parts is loopable.