Multifunctional crown block crust breaking telescopic air cylinder device

Abstract

The utility model provides a multifunctional crown block crust breaking telescopic air cylinder device which comprises a cylinder barrel, a front end cover and a rear end cover are arranged on the two sides of the cylinder barrel, a piston rod connected with a piston is arranged in the cylinder barrel, a gap is reserved between the piston and the inner wall of the cylinder barrel, the front end cover is connected with the piston rod in a sealed mode, and a plurality of permanent magnets are arranged on the side, close to the piston, of the rear end cover. And an air groove is formed between the permanent magnets. The device can avoid the problem that the air cylinder drags the crust breaking machine to slide down when the crown block pipeline is free of air pressure, and avoid the problem that a striking rod of the crust breaking machine scrapes an upper pipeline of an electrolytic cell.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical equipment technical field especially relates to a multifunctional crown block shell breaking telescopic cylinder device. BACKGROUND

[0002] Electrolytic aluminum shell breaking is a physical intervention on the electrolytic cell during the electrolysis process to break the hard shell formed on its surface. This layer of hard shell is mainly composed of aluminum oxide and other impurities, and is gradually accumulated during the electrolysis process. If not cleaned in time, the hard shell will hinder the electrolysis reaction and reduce production efficiency. Therefore, the purpose of shell breaking operation is to keep the electrolytic cell clean and unobstructed, and to ensure the smooth progress of the electrolysis process.

[0003] The multifunctional crown block is a professional equipment for aluminum electrolysis production, mainly responsible for shell breaking, pole changing, aluminum tapping, material feeding, lifting busbar and daily lifting of heavy objects during aluminum electrolysis production. The shell breaking telescopic cylinder is part of the multifunctional crown block shell breaking machine head, mainly responsible for generating impact force through high-speed reciprocating motion to break the solidified hard shell in the electrolytic cell. This cylinder has telescopic function, which can adjust its working stroke according to needs to ensure the effective operation of shell breaking.

[0004] Before the shell breaking mechanism of the multifunctional crown block strikes the shell surface, the shell breaking mechanism needs to be lowered to the shell breaking deceleration area (interlocking shell breaking machine shell inclination area), and the direction of the shell breaking mechanism is controlled by the shell breaking inclination oil cylinder. Because the anode shell surface is tough, the shell breaking telescopic cylinder needs to cooperate with the shell breaking machine to strike quickly and synchronously during the process of striking the shell surface. During the process of the shell breaking machine striking the shell surface at high frequency, the telescopic cylinder needs to provide boost force to keep the striking rod of the shell breaking machine close to the working surface at all times to ensure the working quality of the shell breaking machine. Because the rear end cover of the original structure of the shell breaking telescopic cylinder does not provide additional force, when the crown block pipeline has no gas pressure, the cylinder will drag the shell breaking machine and slide down, causing the striking rod of the shell breaking machine to scratch the upper pipeline of the electrolytic cell. Therefore, during the high-frequency reciprocating and impact work of the shell breaking mechanism of the shell breaking machine, the working quality of the shell breaking telescopic cylinder that cooperates with it directly affects the operation quality and efficiency of the shell breaking machine. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem that the cylinder drags the shell breaking machine and slides down when the pipeline has no gas pressure, causing the striking rod of the shell breaking machine to scratch the pipeline, and provides a multifunctional crown block shell breaking telescopic cylinder device that does not affect the thrust of the cylinder, is easy to control and reduces waste.

[0006] In order to solve the above technical problems, the utility model provides a multi -functional crown block shell -cracking telescopic cylinder device, including cylinder, be equipped with front end cover and rear end cover respectively in both ends of cylinder, be equipped with piston and piston rod in the inside of cylinder, the piston with piston rod connection, the clearance between piston and the inner wall of cylinder is equipped with, front end cover with piston rod sealed connection, the side of rear end cover near piston is equipped with at least 2 permanent magnet, open a gas groove between permanent magnet.

[0007] Preferably, the rear end cover 1 is provided with a gas hole 7, and the gas groove 6 is connected with the gas hole 7 of the rear end cover 1.

[0008] Preferably, the number of permanent magnets 8 is 10, the shape of the permanent magnet 8 is cylindrical, and the permanent magnets 8 are uniformly distributed in the inner side of the rear end cover 1 by gluing.

[0009] Preferably, the rear end cover 1 is provided with a cylindrical lug 9 on both sides perpendicular to the axial direction, and the lug 9 is integrally formed with the rear end cover 1.

[0010] Preferably, the sealing connection is provided with a dustproof sealing ring 12, a sealing ring 13, a stef combined sealing ring 14 and a sealing ring 15 in the front end cover 3, and the dustproof sealing ring 12, the sealing ring 13, the stef combined sealing ring 14 and the sealing ring 15 are sequentially embedded in the front end cover 3 from outside to inside.

[0011] Preferably, the both ends of the piston rod 4 are provided with external threads, and the size is M45*2.5~M45*5.0.

[0012] Preferably, the piston 5 is fixedly connected to one end of the piston rod 4 near the rear end cover 1 by the anti -drop nut 11.

[0013] Preferably, the piston rod 4 is provided with a pin hole 10 near the rear end cover 1, and the catch pin can pass through the pin hole 10 for re-fixing.

[0014] Preferably, the anti -drop nut 11 is threadedly welded with the piston rod 4.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model discloses a new type of permanent magnet is used to provide magnetic attraction at the rear end cover of cylinder, when the trolley pipeline has no gas pressure, the rear end cover of cylinder can control the piston through certain magnetic attraction, prevent the slide of the shell beating machine beating stick to the scratch of electrolytic cell upper pipeline. When the gas in the cylinder is excessive, will discharge through the air hole connected with the air groove, to reach the effect of stable gas pressure, the air groove can be used to increase the gas acting area in the cylinder cylinder, increase the thrust to the piston, can make the piston overcome the magnetic force of rear end cover and move, keep the running speed of cylinder unchanged. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the telescopic cylinder structure schematic diagram of the utility model;

[0018] Figure 2 It is the telescopic cylinder internal structure schematic diagram of the utility model;

[0019] Figure 3 It is the rear end cover structure schematic diagram of the utility model;

[0020] Figure 4 It is the piston rod and piston connection mode schematic diagram of the utility model;

[0021] Figure 5 It is the front end cover structure schematic diagram of the utility model;

[0022] Figure 6 It is Figure 5 A-A section schematic diagram of the utility model.

[0023] Main drawing mark explanation:

[0024] 1-rear end cover, 2-cylinder body, 3-front end cover, 4-piston rod, 5-piston, 6-air groove, 7-air hole, 8-permanent magnet, 9-hanging ear, 10-pin hole, 11-anti-drop nut, 12-dustproof sealing ring, 13-sealing ring, 14-ster seal combination sealing ring, 15-sealing ring. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0026] As Figures 1-3As shown, the utility model discloses a multifunctional crown block shell -cracking telescopic cylinder device, including cylinder 2, is equipped with front end cover 3, rear end cover 1 in both sides of cylinder 2, is equipped with piston rod 4 that is connected with piston 5 in cylinder 2, and the clearance is left to piston 5 and cylinder 2 inner wall, and at least 2 permanent magnets 8 are equipped in rear end cover 1 close to the side of piston 5, as preferred mode, permanent magnet 8 is 10 cylindrical magnets and is evenly distributed in the inside of rear end cover 1 by the mode of cementing. Meanwhile, permanent magnet 8 can be oval, triangle and rectangle shape. When the pipeline of crown block has no air pressure, when crown block works, can be dragged by the magnetic force adsorption of permanent magnet 8 and hold piston 5, and then prevent unnecessary collision and scratch caused by shell -cracking machine sliding down.

[0027] As Figure 3 Shown, is equipped with air hole 7 on rear end cover 1, and air groove 6 is connected with the air hole 7 of rear end cover 1. When cylinder moves, the setting of air groove 6 can increase the gas acting area, increase the thrust to piston 5, can make piston 5 overcome the magnetic force of rear end cover 1 and move at the same time keep the running rate of cylinder unchanged.

[0028] As Figures 5-6 Shown, the contact surface of front end cover 3 and piston rod 4 is equipped with four-stage sealing, and dustproof sealing ring 12 (ZHM), sealing ring 13 (QYD), stef combined sealing ring 14 and sealing ring 15 (QYD) are arranged in front end cover 3, and the dustproof sealing ring 12, sealing ring 13, stef combined sealing ring 14 and sealing ring 15 are sequentially embedded in the front end cover 3 from the outside to the inside of the cylinder, so that the telescopic cylinder can be prevented from gas leakage, and the stability of the gas pressure in the cylinder can be affected. Stef combined sealing ring 14 is composed of a stepped ring and an O-shaped rubber sealing ring, the O-shaped ring provides sufficient sealing force, and compensates for the wear of the stepped ring, so that the cylinder runs more stably.

[0029] As Figure 3 Shown, the cylindrical lug 9 is symmetrically arranged on the outside of the rear end cover 1, and the direction of the cylindrical lug 9 is perpendicular to the axial position of the cylinder, and the lug 9 and the rear end cover 1 are integrally formed. When in use, the lug 9 integrally formed with the rear end cover 1 can bear greater traction force, prevent welding, and is not easy to break, reduce the production loss caused by replacing the cylinder. At the same time, a polyurethane sleeve can be installed on the lug 9, which can effectively reduce the impact of the cylinder on the lug by using the buffering, damping and wear-resistant characteristics of the polyurethane sleeve.

[0030] As Figure 2 , 4As shown, the piston rod 4 is provided with external threads at both ends, the size of which is M45*2.5~M45*5.0, and as a preferred embodiment, the external thread size of the present embodiment is M45*4.5 coarse thread. The piston 5 is fixedly connected to one end of the piston rod 4 close to the rear end cover 1 by a locking nut 11, further, the end of the piston rod 4 close to the rear end cover 1 is provided with a pin hole 10, and a catch pin can pass through the pin hole 10 for further fixation, further, the locking nut 11 and the piston rod 4 are threadably permanently fixed by welding. In use, the multiple fixation of the piston rod 4 and the piston 5 locks them together as a whole, reducing the failure of the piston rod 4 and the piston 5 disengaging and causing the shell breaking machine to fall off.

[0031] When the cylinder is working, the external air pipe is connected to the front end cover 3 and the rear end cover 1 of the cylinder, when compressed air enters the cylinder, it will push the piston 5 to move towards the front end cover 3, so that the piston 5 drives the piston rod 4 to move towards the front end cover 3, and the shell breaking machine connected to the piston rod 4 moves accordingly, and the movement of the shell breaking machine is controlled by controlling the compressed air. When there is no gas pressure in the external air pipe, the piston 5 is located on the side of the rear end cover 1 of the cylinder, and the magnetic attraction of the permanent magnet 8 can control the piston 5 not to swing back and forth under the influence of gravity, avoiding the problem of scratching and colliding of the shell breaking machine connected to the cylinder.

[0032] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for part of the technical features, and any modification, equivalent substitution, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A multifunctional crown shearing telescopic cylinder device for a crown pulley, characterized in that: a cylinder barrel (2) is provided with a front end cover (3) and a rear end cover (1) at both ends thereof, a piston (5) and a piston rod (4) are arranged in the cylinder barrel (2), the piston (5) is connected with the piston rod (4), a gap is arranged between the piston (5) and the inner wall of the cylinder barrel (2), the front end cover (3) is sealingly connected with the piston rod (4), and at least two permanent magnets (8) are arranged on the side of the rear end cover (1) close to the piston (5), and a gas groove (6) is arranged between the permanent magnets (8). A gas hole (7) is arranged on the rear end cover (1), and the gas groove (6) is connected with the gas hole (7) of the rear end cover (1).

2. The multifunctional crown pulley shell-breaking telescopic cylinder device according to claim 1, characterized in that: The number of the permanent magnets (8) is 10, the permanent magnets (8) are in the shape of a cylinder, and the permanent magnets (8) are uniformly distributed in the inner side of the rear end cover (1) in a manner of cementing.

3. The multifunctional crown pulley shell-breaking telescopic cylinder device according to claim 1, characterized in that: Cylindrical lugs (9) are arranged on the two sides of the rear end cover (1) in a direction perpendicular to the axial direction, and the lugs (9) are integrally formed with the rear end cover (1).

4. The multifunctional crown pulley shell-breaking telescopic cylinder device according to claim 1, characterized in that: The sealing connection is that a dustproof sealing ring (12), a sealing ring (13), a stefen combined sealing ring (14) and a sealing ring (15) are arranged in the front end cover (3), and the dustproof sealing ring (12), the sealing ring (13), the stefen combined sealing ring (14) and the sealing ring (15) are sequentially embedded in the front end cover (3) from the outside to the inside of the cylinder.

5. The multifunctional crown pulley shell-breaking telescopic cylinder device according to claim 1, characterized in that: The piston rod (4) is provided with external threads at both ends thereof, and the size is M45*2.5-M45*5.

0.

6. The multifunctional crown pulley shell-breaking telescopic cylinder device according to claim 5, characterized in that: The piston (5) is fixedly connected with the piston rod (4) at the end close to the rear end cover (1) by a locking nut (11).

7. The multifunctional crown pulley shell-breaking telescopic cylinder device according to claim 6, characterized in that: The piston rod (4) is provided with a pin hole (10) at the end close to the rear end cover (1), and a catch pin can pass through the pin hole (10) to be fixed again.

8. The multifunctional crown pulley shell-breaking telescopic cylinder device according to claim 7, characterized in that: The locking nut (11) is threadedly welded with the piston rod (4).

9. The multifunctional crown pulley shell-breaking telescopic cylinder device according to claim 8, characterized in that: ​

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