LID LIFTER AND DROP SLEEVE MECHANISM
First Claim
1. An apparatus for use in charging a coke oven, said apparatus comprising lid lifter means movable from a lowered position to a raised position to move a cover away from an entrance to the coke oven and movable from the raised position to the lowered position to move the cover toward the entrance to the coke oven, sleeve means movable between a retracted condition and an extended condition in which said sleeve means is effective to conduct materials to the entrance to the coke oven, linkage means for moving said lid lifter means while said sleeve means is maintained in the retracted condition and for moving said sleeve means while said lid lifter means is maintained in the raised position, and single motor means for operating said linkage means to move said lid lifter means between the raised and lowered positions with said sleeve means in the retracted condition and for operating said linkage means to extend and retract said sleeve means with said lid lifter means in the raised position.
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Accused Products
Abstract
An improved lid lifter and drop sleeve mechanism is mounted on the bottom of a larry car and is utilized to remove a lid or cover from a coke oven charging hole and to conduct a charge of coal to the charging hole. The lid lifter and drop sleeve mechanism includes a linkage assembly which is actuated by a single operating motor to lower an electromagnet which is energized and rotated to free the cover. The operating motor is then reversed and return springs operate the linkage assembly to raise the electromagnet and cover. Actuation of a single traversing motor moves the raised electromagnet and cover away from the charging hole and positions a drop sleeve assembly in alignment with the charging hole. The linkage assembly is then actuated by the operating motor to lower a smoke or drop sleeve member into engagement with the entrance to the charging hole and a charge of coal is delivered from the larry car through the drop sleeve assembly to the coke oven. The operating motor is then actuated to enable the return springs to again operate the linkage assembly to raise the sleeve member. The traversing and operating motors are then activated in sequence to move the electromagnet back into alignment with the charging hole and return the cover.
7 Citations
17 Claims
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1. An apparatus for use in charging a coke oven, said apparatus comprising lid lifter means movable from a lowered position to a raised position to move a cover away from an entrance to the coke oven and movable from the raised position to the lowered position to move the cover toward the entrance to the coke oven, sleeve means movable between a retracted condition and an extended condition in which said sleeve means is effective to conduct materials to the entrance to the coke oven, linkage means for moving said lid lifter means while said sleeve means is maintained in the retracted condition and for moving said sleeve means while said lid lifter means is maintained in the raised position, and single motor means for operating said linkage means to move said lid lifter means between the raised and lowered positions with said sleeve means in the retracted condition and for operating said linkage means to extend and retract said sleeve means with said lid lifter means in the raised position.
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2. An apparatus as set forth in claim 1 wherein said single motor means is operable in either one of two directions, said linkage means including a first linkage connected with said lid lifter means, a second linkage connected with said sleeve means, and actuator means for operating said first linkage to move said lid lifter means from the raised position to the lowered position upon operation of said single motor means in a first one of said two directions and for operating said second linkage to move said sleeve means from the retracted condition to the extended condition upon operation of said single motor means in a second one of said two directions.
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3. An apparatus as set forth in claim 2 further including spring means for operating said first linkage to move said lid lifter means from the lowered position to the raised position upon operation of said single motor means in the second direction with said lid lifter means in the lowered position and for operating said second linkage to move said sleeve means from the extended condition to the retracted condition upon operation of said single motor means in the first direction with said sleeve means in the extended condition.
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4. An apparatus as set forth in claim 3 wherein said lid lifter means includes an electromagnet and drive means for rotating said electromagnet about a vertical axis, said first linkage including means for moving said electromagnet along a vertical path upon movement of said lid lifter means between the raised and lowered positions.
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5. An apparatus as set forth in claim 4 wherein said sleeve means includes a sleeve member, said second linkage including means for moving said sleeve member along a vertical path extending parallel to the axis of rotation of said electromagnet upon operation of said sleeve means between the extended and retracted conditions.
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6. An apparatus as set forth in claim 5 further including second motor means for moving said lid lifter means and said sleeve means along a horizontal path between a first position in which the axis of rotation of said electromagnet extends through the entrance of the coke oven and said sleeve member is disposed to one side of the entrance to the coke oven and a second position in which said sleeve member is aligned with the entrance to the coke oven.
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7. An apparatus for use in association with a vehicle to charge a coke oven, said apparatus comprising a carriage movable relative to the vehicle between a lid lifting positIon and a charging position, an electromagnet mounted on said carriage, said electromagnet being movable from a lowered position to a raised position to move a magnetically gripped cover vertically upwardly away from an entrance to the coke oven and toward said carriage when said carriage is in the lid lifting position and being moveable from the raised position to the lowered position to move the magnetically gripped cover vertically downwardly toward the entrance to the coke oven when said carriage is in the lid lifting position, a sleeve member mounted on said carriage, said sleeve member being movable vertically downwardly relative to said carriage from a retracted position to an extended position in which said sleeve member is disposed in engagement with the entrance to the coke oven when said carriage is in the charging position, linkage means for moving said electromagnet between the raised and lowered positions and for moving said sleeve member between the retracted and extended conditions, first motor means mounted on said carriage means for operating said linkage means to move said electromagnet between the raised and lowered positions when said carriage means is in the lid lifting position and for operating said linkage means to move said sleeve member between the extended and retracted positions when said carriage is in the charging position, and second motor means for moving said carriage between the lid lifting and charging positions with said sleeve member in the retracted position and with said electromagnet in the raised position magnetically gripping a cover.
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8. An apparatus as set forth in claim 7 further including third motor means for rotating said electromagnet about a vertical axis when said electromagnet is in the lowered position and said carriage is in the lid lifting position to facilitate moving a cover away from the entrance to the coke oven upon movement of said electromagnet from the lowered position to the raised position.
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9. An apparatus as set forth in claim 8 wherein said linkage means is operable to move said third motor means with said electromagnet upon movement of said electromagnet between the raised and lowered positions.
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10. An apparatus as set forth in claim 7 wherein said first motor means includes a first piston and cylinder assembly and said second motor means includes a second piston and cylinder assembly disposed in coaxial relationship with said first piston and cylinder assembly.
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11. An apparatus as set forth in claim 7 wherein said linkage means includes a first linkage connected with said electromagnet, a second linkage connected with said sleeve member, and an actuator means for effecting operation of one of said linkage at a time, said actuator means being ineffective to effect operation of said second linkage when said electromagnet is in the lowered position and being ineffective to effect operation of said first linkage when said sleeve member is in the extended position.
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12. An apparatus as set forth in claim 11 wherein said first motor means includes a single piston and cylinder assembly connected with said actuator means.
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13. An apparatus for use in charging a coke oven, said apparatus comprising lid lifter means movable from a lowered position to a raised position to move a cover away from an entrance to the coke oven and movable from the raised position to the lowered position to move the cover toward the entrance to the coke oven, sleeve means movable between a retracted condition and an extended condition in which said sleeve means is effective to conduct materials to the entrance to the coke oven, linkage means for moving said lid lifter means while said sleeve means is maintained in the retracted condition and for moving said sleeve means while said lid lifter means is maintained in the raised position, motor means for operating said linkage means to move said lid lifter means from the raised position to the lowered position and for operating said linkage means to extend said sleeve means, anD spring means for operating said linkage means to move said lid lifter means from the lowered position to the raised position and for operating said linkage means to retract said sleeve means.
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14. An apparatus as set forth in claim 13 wherein said linkage means includes a first linkage connected with said lid lifter means, and a second linkage connected with said sleeve means, said spring being operatively connected with said first and second linkages and being resiliently deflected upon operation of one of said linkages relative to the other of said linkages.
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15. An apparatus as set forth in claim 14 wherein said motor means includes a single piston and cylinder assembly operatively connected with said first and second linkages.
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16. An apparatus as set forth in claim 14 wherein said lid lifter means includes an electromagnet, said first linkage including means for moving said electromagnet downwardly under the influence of said motor means and against the influence of said spring means upon movement of said lid lifter means from the raised position to the lowered position and for moving said electromagnet upwardly under the influence of said spring means upon movement of said lid lifter means from the lowered position to the raised position.
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17. An apparatus as set forth in claim 16 wherein said sleeve means includes a sleeve member, said second linkage including means for moving said sleeve member downwardly under the influence of said motor means and against the influence of said spring means upon movement of said sleeve means from the retracted condition to the extended condition and for moving said sleeve member upwardly under the influence of said spring means upon movement of said sleeve means from the extended condition to the retracted condition.
Specification