CN2594281Y

CN2594281Y - Mechanical drop-out preventing aluminium cylinder

Info

Publication number: CN2594281Y
Application number: CN 02251226
Authority: CN
Inventors: 李广智; 丁伟光; 李尚才; 王占武
Original assignee: FUXIN HYDRAULIC PNEUMATIC COMPLEMENT FACTORY
Current assignee: FUXIN HYDRAULIC PNEUMATIC COMPLEMENT FACTORY
Priority date: 2002-12-16
Filing date: 2002-12-16
Publication date: 2003-12-24
Anticipated expiration: 2012-12-16

Abstract

The utility model belongs to a special cylinder on an electrolytic tank in an electrolytic aluminum device of a non-ferrous metallurgical industry, particularly to a mechanical and automatic drop-out-preventing aluminum cylinder. The mechanical and automatic drop-out-preventing aluminum cylinder is provided with a front cylinder cover 4, a cylinder barrel 6, a middle swing shaft 17 and a back cylinder cover 10 which are connected together by a draw rod, wherein the front end of an air delivery pipe is connected with a front cylinder cover 1, and the other end is connected with the back cylinder cover 10. A small piston 14 and a spring 13 are arranged in the back cylinder cover 10 whose outside is sealed by a pressing cover. A piston 7 is fastened on a piston rod 1 through buffering nuts 16, the piston rod 1 and the piston 7 are arranged in the cylinder barrel 6, the piston rod 1 extends out of the cylinder from a shaft hole of the front cylinder cover, and an air control valve is connected to the back cylinder cover. The utility model can be widely used for aluminum electrolysis devices.

Description

The anti-aluminium cylinder that drops out of machinery

Affiliated technical field

The utility model belongs in the colored metallurgical industrial electrolytic aluminum equipment special-purpose cylinder on the electrolyzer, and particularly machinery is anti-fall automatically goes out aluminium cylinder.

Background technology

The domestic aluminium cylinder that goes out mainly is anti-fall and anti-fall two major types of magnetic force of air pressure at present.Drop out aluminium cylinder under air pressure is anti-, when reaching the parts damages maintenance under the state of stopping the supple of gas or steam, attacking head will fall into electrolysis molten bath, bottom, causes attacking head to be melted in the ionogen aluminum solutions, causes that impurity increases in the aluminium, purity descends.The anti-fall cylinder of another kind of magnetic force is with the binding agent magnetic patch that bonds on the cylinder back cylinder cover, utilize magnetic force to hold piston and reach the anti-purpose that falls, but there is very big hidden danger in this design, when cylinder moving, because the impact of piston, vibration and pyritous influence often have magnetic patch to come off from back cylinder cover, smashed by piston, in cylinder barrel,, cause cylinder barrel to be pulled and sealing member such as is damaged at fault, cylinder is scrapped with piston up-down.For a long time, for various reasons, the sealing of cylinder, lubricated be the major cause that influences aluminium manufacturer's cylinder life-span always.

Summary of the invention

The purpose of this utility model is to overcome the deficiency of above technology, provide a kind of high temperature resistant, self-lubricating, machinery anti-fall automatically go out aluminium cylinder.

For achieving the above object, go out aluminium cylinder and adopted the thermostable fluorine rubber seal, spring reset valve piston that in back cylinder cover, designs and the anti-fall mechanism that cushions the nut composition, has front end housing, cylinder barrel, balance staff, back cylinder cover, link up by eight pull bars, Pneumatic valve is installed on the cylinder back cylinder cover, pneumatic tube is connected between front end housing and the back cylinder cover, be equipped with a valve piston and spring in the back cylinder cover, the outside is sealed with gland, mother buffering sieve of piston rod tail end, cooperate with valve piston, on cylinder front end housing and piston, support ring is installed, is supported front end housing and piston rod and support tube and piston, valve piston chamber and two ventilating pits mutually about the back cylinder cover intermediate cavity has on the back cylinder cover.

Description of drawings

Specify with example below in conjunction with accompanying drawing.

Fig. 1 illustrates the structural representation of aluminium cylinder.

Fig. 2 shows the back cylinder cover partial enlarged drawing.

Among the figure, the 1-piston rod; The 2-sealing-ring; The 3-support ring; The 4-front end housing; The 5-pneumatic tube; The 6-cylinder barrel; The 7-piston; The 8-support ring; The 9-sealing-ring; The 10-back cylinder cover; The 11-Pneumatic valve; 12-valve piston gland; The 13-spring; The 14-valve piston; The 15-sealing-ring; 16-cushions nut; The 17-balance staff; The 18-pull bar

Embodiment

With reference to accompanying drawing 1,2, high temperature resistant, self-lubricating, machinery are anti-fall automatically goes out the high-temperature resistant seal ring that all sealing-

rings

2,9,15 use viton to make in the aluminium cylinder, and maximum operation (service) temperature can reach 240 ℃, can adapt to the electrolyzer environment for use fully.

During cylinder operation, piston rod 1 is operation up and down in front end housing 4 holes, and piston 7 relative cylinder barrels 6 move up and down.In order to reduce the friction between them, the

support ring

3,8 of the special grand material of fluorine is housed on front end housing 4 and piston 7, reached the purpose of self-lubricating.

Cavity of design on cylinder back cylinder cover 10, one of interior peace provides the valve piston 14 of restoring force with spring 13, and valve piston 14 matches with the buffering nut 16 of piston rod 1 rear end, and piston rod 1, piston 7 are not fallen.Gas promotes valve piston 14 by pore 17 when cylinder back cavity air feed, outwards motion, and valve piston 14 is outwards extracted out in buffering nut 16, and piston rod 1, piston 7 move downward under gas and deadweight effect, realize out the aluminium process.When back cavity did not have gas, valve piston 14 moved to end points inwards under spring 13 effect, ante-chamber air feed at this moment, and piston rod 1 moves upward with piston 7, and when arriving the end, valve piston 14 just in time inserts in the anti-low water of buffering nut 16, reaches the function of anti-whereabouts automatically.

This cylinder has the anti-automatically drop down of life-span length, oil-free self lubrication, machinery.

Claims

1, a kind of machinery is automatically anti-fall goes out aluminium cylinder, have front end housing (4), cylinder barrel (6), balance staff (17), back cylinder cover (10), link up by pull bar (18), it is characterized in that diameter phi 25 pneumatic tubes are linked between front end housing (4) and the back cylinder cover (10), latus rectum φ 20 Pneumatic valves (11) are installed on the back cylinder cover (10), be equipped with a valve piston (14) and spring (13) in the back cylinder cover, outside gland (12) capping, piston (7) is fastened on the piston rod with buffering nut (16), and piston rod (1) passes front end housing (4) axis hole and stretches out outside the cylinder.

2, machinery according to claim 1 is anti-automatically drops out aluminium cylinder, it is characterized in that being equipped with on the bonnet (10) in valve piston (14) chamber, and having up and down, two pores (17) communicate with cylinder back cylinder cover (10) inner chamber.