SU1188223A1 - Device for tightening and opening contact clamps of aluminium electrolyzers - Google Patents

Abstract

A DEVICE FOR TIGHTENING AND OPENING CONTACT CLIPS OF ALUMINUM ELECTROLISSERS, containing a carriage mounted for vertical movement along a bridge crane rod, a mechanical key for tightening and opening clamps with a rotating drive and moving in a horizontal plane, mounted on a carriage and moving it in a horizontal plane, mounted on the toolbar, and then moving it out of the way. in order to reduce labor costs when performing adjacent technological operations, it is equipped with a rotary lever, a pusher and stops, the mechanical key is connected to the carriage turning a lever pivotally associated with the lower end of the plunger, the upper and lower ends pivotally connected to the pusher carriage and displaced rotational drive (A scheni mechanical key is mounted on the pivot arm and stops - in the upper part of the carriage.

Description

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The invention relates to aluminum electrometallurgy, equipment for servicing aluminum electrolysis cells with burned anodes, in particular, devices for tightening and opening contact clamps with horizontal drive roller.

The aim of the invention is to reduce labor costs in the implementation of smesisnyh technological operations,

Fig 1 shows a device, a general view; in fig. 2 is a view along arrow A in FIG. 1, in FIG. 3 is a kinematic diagram of the lifting mechanism; Fig. 4 is a kinematic diagram of a mechanical key.

On a vertical rod 1 bridge crane carrying an automatic gripper 2 for coupling with the rod 3 of the anode 4.20

mounted roller carriage 5, which can move relative to the rod 1 of the bridge crane.

On the carriage 5 with the help of the hinge 6 is hung 7, to the bottom of which is attached the key 8 with the key head feed mechanism 9,

In the upper part of the lever 7, a rotational drive of a key 8 and a key head feed mechanism 9, consisting of an electric motor 10, a safety coupling 11 and a gearbox 12, are installed. The key drive is connected to the key 8 by means of two hinge couplings 13 and a shaft 14.

The key 8 consists of a housing 15 in which a drive shaft 16 is mounted with bevel gear 17, a driven shaft 1B of a feed mechanism with a bevel gear 19, a remote control coupling 20, a screw 21, a running nut 22 connected to a carrier 23, an intermediate shaft 24 with a bevel gear 25 and 26 cylindrical gears, a driven shaft 27 of a key of a wrench 8 with a 1-cylinder gear 28 and a remote control clutch 2. The driven shaft 27 is connected to the head of a wrench 8 by a sliding key 30.

The key head 8 consists of a shaft 31, a double hinge coupling 32, a cup 33, a spring 34 and a tip 35

The upper part of the lever 7 is connected to the lower end of the pusher 38 connected by means of hinges 39, the levers 37 and 40 to the carriage 5 by means of the pull rod 36, the pivoting lever 37. The lever 40 is provided with a roller 41.

The lower part of the lever 7 is provided with an abutment 42 resting on the tire 43 and a trap 44 catching the clamp 45. In its upper part, the lever 7 rests on the spring-loaded abutment 46.

The lifting mechanism 47, consisting of an electric motor 48, a safety coupling 49, a gear 50, a nut 51, a screw 52 supported on the lower flange 53 of the rod 1 of an overhead crane, is rigidly attached to the base of the carriage 5. The permanent connection of the screw 52 with the flange 53 is absent. To limit the lift height of the trolley relative to the rod 1, end switches 54 are installed. In the upper part, the carriage 5 is provided with stops 55, and the bridge crane trolley 56 in its lower part is spring-loaded magnets 58 and the stop 59.

The device works as follows.

When the electric motor 10 drives the rotation of the key 8 and the key supply mechanism 9 by means of the safety coupling 11 of the gearbox 12, the hinge couplings 13, the shaft 14, the drive shaft 16, gear 17, the rotation is transmitted to the driven shaft 18 of the key feeding mechanism 8 via gear 19 and the intermediate gear shaft 24 through gear 25.

When the coupling 20 is turned on, the screw 21 rotates, the screw 22 moves the nut 22, moving the carrier 23, which puts on or removes (depending on the direction of rotation) the key of the key 8 on the axis of the clamp 45.

When the coupling 29 is turned on, rotation from the intermediate shaft 24 through gears 26 and 28, shaft 27, sliding key 30, shaft 31, hinge coupling 32 is transmitted to the tip of the key 35.

Clutches 20 and 29 can be engaged in, alternately and simultaneously. The order of engaging the clutches and changing the direction of rotation of the electric motor 10 is determined by an electric control circuit.

When the motor 48 is turned on, the rotation through the safety clutch 49, the gear 50 is transferred to the nut 51, in which the screw 52 moves. The screw 52, resting against the base 53 of the rod 1 of the bridge crane, lifts the carriage 5 relative to the hook 2 along the rod 1. click 57, connected to the electro-change of the burnt anode, the carriage 5 is moved to the upper working position with respect to the gripper 2 by means of a lifting mechanism 47. The bar 1 of the bridge crane with the gripper 2 is installed above the rod 3 of the anode 4. The bar 1 of the bridge crane lowers until the gripper grips 2 s 3, the anode rod 4.

By means of the lifting mechanism 47, the carriage 5 is lowered until the stop 42 is seated on the tire 43. At the same time, the inclined planes of the trap 44, the key 8 is oriented relative to the clamp 45, a slight shift of the stop 46. Thus, the axis of the key 8 turns against the axis of the clamp 45.

The motor 10 of the rotational drive of the key 8 is turned on, and the supply of the key 8 to the opening of the clamp 45 and the electromagnetic clutches 20 and 29. The tip 35 is mounted on the axis of the clamp 45, and the clamp 45 opens.

The carriage 5 is lifted to the upper working position with the help of lifting mechanisms 47, the bridge crane bar 1 with the gripper 2, the anode rod 3 and the anode end of the anode 4 is raised, removed from the electrolyzer zone and installed at the designated place in the workshop. The new anode 4 is installed to the burned-out anode with the rod -1 of the bridge crane and the clamp 45 is closed and tightened. The key of the key 8 on the clamp axis is made in the same order as when tuning to a candle end. Next, the key 8 is turned on tightening the clamp 45 and the removal of the tip 35 from the axis of the clamp 45, for servicing the anodes 4 on the other side of the electrolyzer, the rod 1 of the bridge crane turns 180,

If the bridge crane boom 1 is used to perform operations unrelated to replacing the calcine,

then the carriage 5 is driven to the extremely upper position (under the overhead crane truck) in which it is fixed and remains there until the cinder change operations are carried out.

The release of the carriage 5 from the latches 57 is as follows.

Moving the rod 1 vertically upward, the carriage 5 is raised by a small amount in order to remove the load from the latch 57, with the help of electromagnets 58 the latch 57 is retracted, and the rod 1 together with the carriage 5 goes down,

Bringing the device to its highest position is as follows.

If, until now, the device has been in the upper working position, it is lowered by means of a lifting mechanism 47 with respect to the base 53 of the rod 1 of the bridge crane to its lowest position,

Movement of the rod 1 upwards the device rises, the stops 55 pass through the spring-loaded latches 57, and the roller carriage 5 is suspended on the latches 57. At this, the roller 41, having reached the stop 59, turns the lever 40 relative to the hinge 39, moves the pusher 38, turns the lever 37, moves the rod 36 and rotates the lever 7 with the key 8 to a horizontal position, ensuring the device’s minimum overall height and freeing the maximum height for the operation of the rod 1 of the bridge crane without interference,

The possibility of bringing the device to the upper position to the frame of the trolley and reducing its overall height allows for completing technological operations without slingers.

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Claims (1)

A device for tightening and opening the contact clamps of aluminum electrolysis cells, comprising a carriage mounted for vertical movement along the rod of an overhead crane, a mechanical key for tightening and opening clamps with a rotational drive and moving in a horizontal plane, mounted on the carriage, characterized in that reduce labor costs when performing related technological operations, it is equipped with a rotary lever, a pusher and stops, a mechanical key is connected to the carriage with a rotary lever m pivotally connected to the lower end of the pusher, the upper and lower ends of the push rod is pivotally connected with the carriage drive and the rotational movement of the mechanical key is mounted on the pivot arm and stops - in the upper part of the carriage.