摘要:
A device for swiveling a working unit between a rest position and a work position is disclosed. The unit has an arm and a support structure, one end of the arm being arranged in the support structure in such a way that it can swivel. A swivel arm with an actuating drive is positioned with one end arranged in the support structure in such a way that it can swivel. The other end of the swivel arm has an articulated connection with a lift drive, the second end of the lift drive has an articulated connection with the arm. The swiveling axis of the swivel arm is positioned at a set distance from the swiveling axis of the arm so that the lever arm can be raised. This allows the lift drive to transmit its power to the arm in a working position. This eccentric position of the swivel arm also allows the actuating drive of the swivel arm to switch largely without power when the arm is in the working position. The swiveling device is adapted for use for tap hole plugging machines.
摘要:
The apparatus comprises an operating station with a rotary work platform, a non-rotary supporting stage supporting the work platform by means of a first bearing, a robot for laying the bricks, a monitoring booth, a device for raising and lowering brick pallets and at least one automatic brick-depalletizing mechanism for transferring the bricks from the pallets towards a stand-by station. This stand-by station comprises a turret which can contain a reserve of bricks of different types and which is supported by the stage by means of a second bearing, so as to be rotatable independently of the stage and the platform about the vertical axis of the vessel. The apparatus is particularly well suited for repairing metallurgical converters.
摘要:
A taphole boring machine serving two tapholes includes a support structure, a mount and a suspension device of which the mount is secured on the supporting structure and the suspension device has a tilting device for the mount with the suspension device further including a mechanism within a frame, a first drive and two connection points with a mechanism designed in such a way that a positively guided translation of two connection points in relation to the frame can be produced by a drive pulse of the first drive so that a connecting line through the two connection points remains parallel with itself during such movement.
摘要:
The apparatus of the present invention utilizes a bricklaying robot which comprises an automatic brick-handling or grabbing device fastened to the end of a main arm which is carried by a frame mounted on a work platform; and which is radially movable relative to the platform. Circular movement of the arm and of the grabbing device relative to the vertical axis of the work platform is generated as result of a rotation of the platform about this vertical axis. The present invention also utilizes a storage table which is mounted underneath the main arm of the robot, so as to be movable along a vertical axis and rotatable about the axis. The present invention further includes an automatic depalletizing mechanism comprising a pivoting arm, of which one of the ends is equipped with a brick-grasping device and the other end is mounted pivotally on a support sliding parallel to the main arm of the robot between two rails of the frame. This brick lining apparatus is less bulky than known prior art apparatuses and offers monitoring personnel a greater degree of safety.
摘要:
An apparatus for actuating a proportioning valve is presented. The valve consists of a pair of registers, each register having a cut-out portion defining a variable area orifice which is generally symmetrical about a central longitudinal axis through the orifice. The registers are respectively connected to a first and second drive shaft, the drive shafts being mounted about a common axis and being mounted in bearings in a frame such that by pivoting about the common axis, the drive shafts will urge the registers to simultaneously move in opposite directions. Each of the two drive shafts are provided with an arm which are pivotably connected to a tilting lever via a connecting rod. The two tilting levers are mounted on a pivot shaft which is parallel to the common axis of the two drive shafts. The tilting levers are also connected to a driving device, i.e., a hydraulic jack which acts to pivot them about their pivot shaft so that the registers are simultaneously actuated in opposite directions. Preferrably, one of the tilting levers is a substantially straight bar while the other of the tilting levers is a bent bar, the pivot shaft being connected between about the center portion of the straight bar and the bend portion of the bent bar.
摘要:
Device for plugging a tap hole comprising an expulsion piston fitted in a plugging chamber, a first double-acting hydraulic actuator positioned behind the piston and a first channel passing through the piston for the passage of a piercing rod, and the first actuator. The device further comprises a second double-acting hydraulic actuator positioned behind the first actuator, equipped with a second channel for the passage of a rod, a control means for imposing a to-and-fro movement on the second actuator, and a first gripping means movable by the second actuator. This first gripping means makes it possible to grip and release a rod in order to push it, by successive travels, through the two channels in the direction of the plugging nose-piece.
摘要:
A machine for piercing a taphole for a shaft furnace in the so called "lost rod" method is presented. After the taphole is blocked with a taphole clay but before the taphole clay has fully hardened, a piercing rod is driven into the taphole clay by this machine so that at the desired time the taphole can be opened by extracting the piercing rod by this same machine. This piercing machine comprises a mounting, a first carriage which can be displaced along the mounting, a drive mechanism for this first carriage, guide mechanism to guide the piercing rod and finger mechanism capable of exerting axial thrust upon the piercing rod. The guide means define a guide channel for the piercing rod, which guide mechanism also has a longitudinal opening that gives access to the inside of the guide mechanism, the guide channel being perpendicular to the axis of the longitudinal opening. A finger that has the ability to exert an axial thrust on one end of the piercing rod penetrates through the longitudinal opening inside the guide channel.
摘要:
An apparatus for lining the inside wall of a vessel with bricks is presented. The apparatus includes a work platform, a handling robot and telescopic hoists. The telescopic hoists have carriages for receiving a stack of bricks of the same type. At the platform level, a vertical conveyor is associated with the hoists. The vertical conveyor transfers the stack of bricks from the carriages and raise the bricks to the platform level. The installation of this invention is particularly useful for laying a refractory lining on the inside wall of a metallurgical converter.
摘要:
A grabbing device intended to be mounted on the end of the arm of a robot and comprising a plate equipped with a pair of claws mounted in facing relation on the plate, with one claw being slidably mounted on the plate and the other claw being pivotably mounted thereon. The fastening between the robot arm and the plate comprises first and second mutually parallel pivot axes (Y.sub.1, Y.sub.2), the pivot axes being perpendicular to the surface of the plate. The grabbing device of the present invention also includes a mechanism for pivoting the plate about at least one of the axes, a mechanism for blocking or releasing the plate relative to the other of the axes, and a sensor for measuring the pivoting angle of the plate about each of the axes (Y.sub.1, Y.sub.2). The grabbing device is particularly well suited for handling refractory bricks in a robotized apparatus for repairing a metallurigical convertor.
摘要:
An apparatus for determining the charging profile on the charging surface of a shaft furnace is presented. The apparatus consists of a plurality of level probes, each probe including a weight which is suspended vertically above the charging surface on the first end of a cable which projects from a supporting arm. The second end of each of these cables, in turn, is connected outside the furnace to respective winding drums, each drum being controlled by a driving device which raises or lowers the probe connected to the drum. This invention also consists of a monitoring device for measuring the unwinding of the cable from the drum and the descent of the probe onto the charging surface as well as a method of replacing an individual probe and its cable from outside the shaft furnace.