CN103671357A - Special buffering and sealing device for crust breaking cylinder - Google Patents

Special buffering and sealing device for crust breaking cylinder Download PDF

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Publication number
CN103671357A
CN103671357A CN201310656278.XA CN201310656278A CN103671357A CN 103671357 A CN103671357 A CN 103671357A CN 201310656278 A CN201310656278 A CN 201310656278A CN 103671357 A CN103671357 A CN 103671357A
Authority
CN
China
Prior art keywords
cylinder
buffering
piston
sealing
crust breaking
Prior art date
Application number
CN201310656278.XA
Other languages
Chinese (zh)
Inventor
丁维力
王挺
Original Assignee
大连维乐液压制造有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 大连维乐液压制造有限公司 filed Critical 大连维乐液压制造有限公司
Priority to CN201310656278.XA priority Critical patent/CN103671357A/en
Publication of CN103671357A publication Critical patent/CN103671357A/en

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Abstract

The invention discloses a special buffering and sealing device for a crust breaking cylinder, and belongs to the technical field of buffering and sealing of an electrolytic aluminum crust breaking cylinder. According to the special buffering and sealing device for the crust breaking cylinder, the thickened parts, on the two sides of a piston, of a piston rod are respectively provided with an outer sealing cone, a cylinder cover and a cylinder end cover are respectively provided with a buffering ring with an inner sealing cone, the outer sealing cones are matched with the inner sealing cones, the inner diameter of each buffering ring is larger than the outer diameter of the piston rod, and a left air hole is communicated with an inner cavity in the left side of the piston through a pilot pressure hole. According to the special buffering and sealing device, since the pilot pressure hole and the two buffering rings are adopted, effective buffering and sealing effects can be achieved, the service life of the cylinder is prolonged, and a maintenance cycle is prolonged.

Description

A kind of crust breaking cylinder dedicated buffering seal arrangement
Technical field
The present invention relates to a kind of crust breaking cylinder dedicated buffering seal arrangement, belong to the cushion seal technical field of electrolytic aluminium crust breaking cylinder.
Background technique
Existing electrolytic aluminium crust breaking cylinder is the Special cylinder that electrolytic aluminium factory is used, its function is divided into blanking crust breaking and goes out two kinds of aluminium crust breakings, during use, pressurized air enters cylinder by pipeline and drives tup fast-descending to realize crust breaking, after crust breaking finishes, by controlling selector valve commutation, makes cylinder fast retractile.The dustproof conventional material of existing cylinder is fluorine rubber lip type circle, and in use, the residing ambient temperature of cylinder is that more than 150 ° of C degree dust is serious, and cylinder movement velocity when crust breaking is fast and be subject to serious lateral impact.Be subject to high temperature, at a high speed, unbalance loading, the impact of the factor such as lubricating condition is bad, seal ring short term failure, affects the normal operation of equipment.
Summary of the invention
In order to overcome problems of the prior art, the invention provides a kind of crust breaking cylinder dedicated buffering seal arrangement.This buffer sealing device should play effective cushion seal effect, improves the working life of cylinder, extends service cycle.
The technical solution used in the present invention is: a kind of crust breaking cylinder dedicated buffering seal arrangement, piston actuated piston rod in cylinder is reciprocating, the thickened portion of described piston both sides piston rod is respectively provided with an external sealed conical surface, on cylinder head and cylinder end piece, be respectively provided with the buffering ring of sealing cone in a band, the external sealed conical surface in described piston left side matches with the interior sealing cone on buffering ring in cylinder head, the external sealed conical surface on described piston right side matches with the interior sealing cone on buffering ring in cylinder end piece, the inner diameter of the buffering ring in cylinder head is greater than the outer diameter of piston rod, left pore adopts pilot pressure hole to be communicated with the inner chamber in piston left side in cylinder.
The outer cylinder of described buffering ring is provided with rubber o-ring.
The invention has the beneficial effects as follows: this crust breaking cylinder dedicated buffering seal arrangement, thickened portion at piston both sides piston rod is respectively provided with an external sealed conical surface, on cylinder head and cylinder end piece, be respectively provided with the buffering ring of sealing cone in a band, the external sealed conical surface matches with interior sealing cone, the inner diameter of buffering ring is greater than the outer diameter of piston rod, and left pore adopts pilot pressure hole to be communicated with the inner chamber in piston left side.This buffer sealing device adopts pilot pressure hole and two buffering rings, can play effective cushion seal effect, improves the working life of cylinder, extends service cycle.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further described
Fig. 1 is a kind of structural drawing of crust breaking cylinder dedicated buffering seal arrangement.
In figure: 1, rubber o-ring, 2, buffering ring, 2a, interior sealing cone, 3, cylinder head, 3a, left pore, 3b, pilot pressure hole, 4, cylinder, 5, cylinder end piece, 5a, right pore, 6, piston, 7, piston rod, 7a, the external sealed conical surface, 8, gland.
Embodiment
Fig. 1 shows a kind of structural drawing of crust breaking cylinder dedicated buffering seal arrangement.In figure, piston 6 piston rod 7 of crust breaking cylinder dedicated buffering seal arrangement in cylinder 4 are reciprocating, the thickened portion of piston 6 both sides piston rods 7 is respectively provided with an external sealed conical surface 7a, on cylinder head 3 and cylinder end piece 5, be respectively provided with the buffering ring 2 of sealing cone 2a in a band, the outer cylinder of buffering ring 2 is provided with rubber o-ring 1.The external sealed conical surface 7a in piston 6 left sides matches with the interior sealing cone 2a on buffering ring 2 in cylinder head 3, and the external sealed conical surface 7a on piston 6 right sides matches with the interior sealing cone 2a on buffering ring 2 in cylinder end piece 5.The inner diameter of the buffering ring 2 in cylinder head 3 is greater than the outer diameter of piston rod 7, and left pore 3a adopts pilot pressure hole 3b to be communicated with the inner chamber in piston 6 left sides in cylinder 4.
Adopt above-mentioned technological scheme, buffering ring 2 adopts high-abrasive material manufacture.When piston 6 moves near terminal to the left or to the right, external sealed conical surface 7a is progressively near interior sealing cone 2a, and disappointing passage diminishes, cylinder inner cavity air leakage amount reduces, and piston 6 slows down, until external sealed conical surface 7a is near interior sealing cone 2a, this is an obvious buffering course, and impact force is very little.When piston 6 is positioned at left position, left pore 3a air inlet, pressurized air first enters cylinder inner cavity through pilot pressure hole 3b, promoting piston 6 moves to right, after interior sealing cone 2a in the external sealed conical surface 7a in piston 6 left sides and cylinder head 3 on buffering ring 2 departs from, a large amount of pressurized air enters cylinder and promotes piston 6 acceleration and move to right from the gap between piston rod 7 and buffering ring 2.This buffer sealing device has improved the working life of cylinder, has extended service cycle, has reduced compressed-air actuated consumption, can reduce energy waste more than 20%.

Claims (2)

1. a crust breaking cylinder dedicated buffering seal arrangement, piston (6) piston rod (7) in cylinder (4) is reciprocating, it is characterized in that: the thickened portion of described piston (6) both sides piston rods (7) is respectively provided with an external sealed conical surface (7a), on cylinder head (3) and cylinder end piece (5), be respectively provided with the buffering ring (2) of sealing cone (2a) in a band, the external sealed conical surface (7a) in described piston (6) left side matches with the interior sealing cone (2a) on buffering ring (2) in cylinder head (3), the external sealed conical surface (7a) on described piston (6) right side matches with the interior sealing cone (2a) on buffering ring (2) in cylinder end piece (5), the inner diameter of the buffering ring (2) in cylinder head (3) is greater than the outer diameter of piston rod (7), left pore (3a) adopts pilot pressure hole (3b) to be communicated with the inner chamber in piston (6) left side in cylinder (4).
2. a kind of crust breaking cylinder dedicated buffering seal arrangement according to claim 1, is characterized in that: the outer cylinder of described buffering ring (2) is provided with rubber o-ring (1).
CN201310656278.XA 2013-12-09 2013-12-09 Special buffering and sealing device for crust breaking cylinder CN103671357A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310656278.XA CN103671357A (en) 2013-12-09 2013-12-09 Special buffering and sealing device for crust breaking cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310656278.XA CN103671357A (en) 2013-12-09 2013-12-09 Special buffering and sealing device for crust breaking cylinder

Publications (1)

Publication Number Publication Date
CN103671357A true CN103671357A (en) 2014-03-26

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CN201310656278.XA CN103671357A (en) 2013-12-09 2013-12-09 Special buffering and sealing device for crust breaking cylinder

Country Status (1)

Country Link
CN (1) CN103671357A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104963909A (en) * 2015-05-29 2015-10-07 江苏新美星包装机械股份有限公司 Bottle blowing machine seal cylinder
CN109162988A (en) * 2018-09-28 2019-01-08 武汉科技大学 Cushioning device for oil cylinder and elevator
RU2683401C1 (en) * 2018-02-21 2019-03-28 Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" Punch for the aluminum reduction cells supply with raw materials automated systems

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4700612A (en) * 1983-05-03 1987-10-20 Swiss Aluminium Ltd. Electropneumatic drive system for crust breaking devices and process for operating the same
DE3740708A1 (en) * 1987-12-01 1989-06-15 Schwarzkopf Gmbh Maschbau Vacuum valve
CN101235837A (en) * 2008-03-07 2008-08-06 汪立平 Constant throttle -type amortization structure high pressure oil cylinder
CN201437802U (en) * 2009-07-22 2010-04-14 宁波优耐特模具有限公司 Hydraulic cylinder
CN102367580A (en) * 2011-09-19 2012-03-07 大连维乐液压制造有限公司 Electrolytic aluminium crust breaking cylinder sealing system
DE102011050955A1 (en) * 2011-06-09 2012-12-13 Elopak Systems Ag Steam trap and condensate drainage method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4700612A (en) * 1983-05-03 1987-10-20 Swiss Aluminium Ltd. Electropneumatic drive system for crust breaking devices and process for operating the same
DE3740708A1 (en) * 1987-12-01 1989-06-15 Schwarzkopf Gmbh Maschbau Vacuum valve
CN101235837A (en) * 2008-03-07 2008-08-06 汪立平 Constant throttle -type amortization structure high pressure oil cylinder
CN201437802U (en) * 2009-07-22 2010-04-14 宁波优耐特模具有限公司 Hydraulic cylinder
DE102011050955A1 (en) * 2011-06-09 2012-12-13 Elopak Systems Ag Steam trap and condensate drainage method
CN102367580A (en) * 2011-09-19 2012-03-07 大连维乐液压制造有限公司 Electrolytic aluminium crust breaking cylinder sealing system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104963909A (en) * 2015-05-29 2015-10-07 江苏新美星包装机械股份有限公司 Bottle blowing machine seal cylinder
RU2683401C1 (en) * 2018-02-21 2019-03-28 Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" Punch for the aluminum reduction cells supply with raw materials automated systems
CN109162988A (en) * 2018-09-28 2019-01-08 武汉科技大学 Cushioning device for oil cylinder and elevator

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Application publication date: 20140326

C02 Deemed withdrawal of patent application after publication (patent law 2001)