CN104154072A - Improved structure of hydraulic cylinder of hydraulic loading system for mill - Google Patents

Improved structure of hydraulic cylinder of hydraulic loading system for mill Download PDF

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Publication number
CN104154072A
CN104154072A CN201410370788.5A CN201410370788A CN104154072A CN 104154072 A CN104154072 A CN 104154072A CN 201410370788 A CN201410370788 A CN 201410370788A CN 104154072 A CN104154072 A CN 104154072A
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CN
China
Prior art keywords
piston
cylinder barrel
cover
cylinder
chamber
Prior art date
Application number
CN201410370788.5A
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Chinese (zh)
Inventor
胡泽武
Original Assignee
莱歇研磨机械制造(上海)有限公司
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Priority to CN201410370788.5A priority Critical patent/CN104154072A/en
Publication of CN104154072A publication Critical patent/CN104154072A/en

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Abstract

The invention discloses an improved structure of a hydraulic cylinder of a hydraulic loading system for a mill. The improved structure comprises a cylinder barrel (1), a barrel opening of the cylinder barrel (1) is fixed and sealed by a barrel cover (2), the bottom of the cylinder barrel (1) is sealed by a bottom cover (3), and a piston (5) is positioned in an inner cavity formed by the cylinder barrel (1), the barrel cover (2) and the bottom cover (3). The improved structure is characterized in that a lubricating oil groove (7) is formed in the excircle surface of the piston (5), a combined sealing ring (8) is mounted at a position where the piston (5) contacts with the inner wall of the cylinder barrel (1), and a corrosion-resistant wear-resistant layer coats the outer surface of each of the cylinder barrel (1), a piston rod (6), the piston (5), the barrel cover (2) and the bottom cover (3) and is made by a nickel nobelium boron silicon material. The corrosion-resistant wear-resistant layers on the surface of the hydraulic cylinder is made by thermal spraying of nickel nobelium boron silicon, thereby being high in coating performance and less prone to shedding, and nickel nobelium boron silicon is resistant to corrosion; the combined sealing ring is mounted at the position where the piston contacts with the inner wall of the cylinder barrel, and friction between a wear-resistant ring and the inner wall of the cylinder barrel is released by utilizing stress, so that service life of the piston is prolonged.

Description

Hydraulic loading system oil hydraulic cylinder structure-improved for a kind of grinding machine

Technical field

The present invention relates to material grinding equipment, specifically just relate to the grinding machine of milling for various materials such as nonferrous metallic ores, steel mill's slag, slag, cement plant grog, limestones, relate in particular to a kind of grinding machine hydraulic loading system oil hydraulic cylinder structure-improved.

Background technique

Grinding machine is the equipment for material that larger particle material is ground into powder, according to the difference of milling medium and grinding material, can be divided into: pebble mill, column mill, rod mill, tuber grinder, autogenous tumbling mill, revolve mortar formula tumbling mill, Vertical Mill, multilayer Vertical Mill, vertical roll grinder, DMC grinding machine etc.Comminution technique be by grinding machine utilize energy to ore push, roll extrusion, impact and grinding, make usefull mineral monomer dissociation in ore, be beneficial to the process that the next stage sorts.Powder machine adopts mill revolution, the rotation of mill axle, spring to adjust cane grinding roller assembly structure, strengthened grinding roller roller skin to material crushing strength and shear ability, thereby reach the effect of strengthening abrasive dust, there is the fineness of materials high (powder is careful) that output is high, grind.When grinding machine work, because the abrasive power of needs is very large, therefore the hydraulic loading system efficiency of hydraulic loading system mechanism requires very high, the hydraulic loading system mechanism that existing traditional grinding machine adopts is generally as shown in Chinese patent 200720010629.X, a kind of upper end of energy-storage hydraulic cylinder cylinder barrel of grinding machine is fixedly connected with cylinder head, the lower end of cylinder barrel is fixedly connected with earrings, earrings is fixedly connected with joint shaft bearing, piston is flexibly connected with the inwall of cylinder barrel, cylinder barrel is separated into A district and Liang Ge region, B district by piston, in A district, upper end edge cylinder barrel wall has two filler openings, in B district, lower end edge cylinder barrel wall has a filler opening, piston passes through card key, card key cap is fixedly connected with piston rod with shaft block ring, piston rod is flexibly connected with cylinder head by wear ring, the lower end of displacement transducer is fixed in earrings, insert in piston rod through stainless steel gasket and sensor magnet ring displacement transducer upper end, stainless steel gasket and sensor magnet ring are fixed on the lower end of piston rod.This kind of hydraulic cylinder piston stability is strong, and hydraulic loading system efficiency is high.Rust resistance and corrosion resistance processing generally all will be carried out in this traditional oil hydraulic cylinder surface, and at present traditional oil hydraulic cylinder adopts chemical plating processing, has greater environmental impacts, and cost is higher, and piston wear is very fast, and the life-span is not long.

Summary of the invention

Object of the present invention wears no resistance by oil hydraulic cylinder surface chemistry electroplating processes for above-mentioned existing grinding machine, anticorrosion ability is not good, piston is the technological deficiency of wearing and tearing easily, a kind of grinding machine hydraulic loading system oil hydraulic cylinder structure-improved is provided, grinding machine is adopted to new surface treatment with oil hydraulic cylinder, change piston and the way of contact of oil hydraulic cylinder inwall, reduce the friction of piston, extend its working life, total only need be done simple change with oil hydraulic cylinder to existing grinding machine and just can realize.

Technological scheme

In order to realize above-mentioned technical purpose, the present invention designs a kind of grinding machine hydraulic loading system oil hydraulic cylinder structure-improved, it comprises cylinder barrel, the fixing encapsulation of cover for the nozzle of cylinder barrel, the bottom of cylinder barrel encapsulates with bottom, bottom is positioned at cylinder barrel outside and is fixedly connected with joint shaft bearing, piston is positioned at cylinder barrel, in the inner chamber of cover and bottom composition, inner chamber is divided into He You chamber, left chamber two-part, piston can slide in inner chamber, piston is fixed on piston rod one end, the piston rod the other end passes cover, it is characterized in that: on described outside piston face, have oil groove, on piston, with inner wall of cylinder contacting point, combined seal ring is housed, described combined seal ring comprises packing ring, packing ring is contained in piston seal groove, described packing ring overcoat has seal ring, described seal ring and inner wall of cylinder contact position are provided with stress relief wear ring, described cylinder barrel, piston rod, piston, cover and bottom outer surface are coated with anticorrosion antiwear layer, described anticorrosion antiwear layer is made of nickel nobelium borosilicate.Anticorrosion antiwear layer adopts nickel nobelium borosilicate to make, and does not need traditional plating to make, and uses hot-spraying technique instead and makes, and has reduced traditional chemical and has electroplated the pollution to environment, and the more wear-resisting resistance to acid attack of while nickel nobelium borosilicate, has extended working life of oil hydraulic cylinder.

Described stress relief wear ring is that carbon fiber is made, the stress relief wear ring that carbon fiber is made have resistance to wear, the effect of shock resistance and anti-cavitation erosion, avoided piston impacted by oil hydraulic cylinder internal pressure, extended the physical life of piston,

Further, described piston rod passes cover, on cover, is provided with oil groove with piston rod contacting point.

Further, He You chamber, described left chamber is respectively equipped with two filler openings.

Beneficial effect

Grinding machine provided by the invention adopts the thermal spraying of nickel nobelium borosilicate to be made with the surface anticorrosion wearing layer of hydraulic loading system oil hydraulic cylinder, covering property is good, difficult drop-off, and nickel nobelium borosilicate is corrosion-resistant, extend oil hydraulic cylinder working life, load onto combined seal ring at piston and inner wall of cylinder contacting point, utilize the resistance to wearing of stress relief wear ring, shock resistance and anti-cavitation characteristic, extend the working life of piston.

Brief description of the drawings

Accompanying drawing 1 is structural representation of the present invention.

Accompanying drawing 2 is A place enlarged views in accompanying drawing 1.

Embodiment

Below in conjunction with drawings and Examples, the present invention will be further described.

Embodiment

As shown in attached Fig. 1 and 2, transmission fluid cylinder pressure structure-improved for a kind of grinding machine, it comprises cylinder barrel 1, the fixing encapsulation of cover 2 for the nozzle of cylinder barrel 1, the bottom of cylinder barrel 1 encapsulates with bottom 3, bottom 3 is positioned at cylinder barrel 1 outside and is fixedly connected with joint shaft bearing 4, piston 5 is positioned at cylinder barrel 1, in the inner chamber that cover 2 and bottom 3 form, inner chamber is divided into He You chamber, left chamber two-part, piston can slide in inner chamber, piston 5 is fixed on piston rod 6 one end, piston rod 6 the other ends pass cover 2, it is characterized in that: on described piston 5 peripheries, have oil groove 7, on piston 5, with cylinder barrel 1 inwall contacting point, combined seal ring 8 is housed, described combined seal ring 8 comprises packing ring 801, packing ring 801 is contained in piston seal groove 802, described packing ring 801 overcoats have seal ring 803, described seal ring 803 is provided with stress relief wear ring 804 with cylinder barrel 1 inwall contact position, described cylinder barrel 1, piston rod 6, piston 5, cover 2 and bottom 3 outer surfaces are coated with anticorrosion antiwear layer, described anticorrosion antiwear layer is made of nickel nobelium borosilicate,

Described stress relief wear ring 804 is made for talking fiber.

Described anticorrosion antiwear layer is that thermal spraying is made.

Described piston rod 6 passes cover 2, on cover 2, is provided with oil groove 201 with piston rod 6 contacting points.

He You chamber, described left chamber is respectively equipped with two filler openings.

When the action of whole oil hydraulic cylinder, the friction of stress relief wear ring and inner wall of cylinder, has extended working life of piston, and the surface anticorrosion wearing layer employing nickel nobelium borosilicate thermal spraying of oil hydraulic cylinder is made, and covering property is good, difficult drop-off.

Claims (4)

1. a hydraulic loading system oil hydraulic cylinder structure-improved for grinding machine, it comprises cylinder barrel (1), the fixing encapsulation of cover for nozzle (2) of cylinder barrel (1), bottom for bottom (3) encapsulation of cylinder barrel (1), bottom (3) is positioned at cylinder barrel (1) outside and is fixedly connected with joint shaft bearing (4), piston (5) is positioned at cylinder barrel (1), in the inner chamber of cover (2) and bottom (3) composition, inner chamber is divided into He You chamber, left chamber two-part, piston can slide in inner chamber, piston (5) is fixed on piston rod (6) one end, piston rod (6) the other end passes cover (2), it is characterized in that: on described piston (5) periphery, have oil groove (7), combined seal ring (8) is equipped with on piston (5) and cylinder barrel (1) inwall contacting point, described combined seal ring (8) comprises packing ring (801), packing ring (801) is contained in piston seal groove (802), described packing ring (801) overcoat has seal ring (803), described seal ring (803) is provided with stress relief wear ring (804) with cylinder barrel (1) inwall contact position, described cylinder barrel (1), piston rod (6), piston (5), cover (2) and bottom (3) outer surface are coated with anticorrosion antiwear layer, described anticorrosion antiwear layer is made of nickel nobelium borosilicate,
Described stress relief wear ring (804) is made for talking fiber.
2. hydraulic loading system oil hydraulic cylinder structure-improved for a kind of grinding machine as claimed in claim 1, is characterized in that: described anticorrosion antiwear layer is that thermal spraying is made.
3. hydraulic loading system oil hydraulic cylinder structure-improved for a kind of grinding machine as claimed in claim 1, it is characterized in that: described piston rod (6) passes cover (2), on cover (2) and piston rod (6) contacting point is provided with oil groove (201).
4. hydraulic loading system oil hydraulic cylinder structure-improved for a kind of grinding machine as claimed in claim 1, is characterized in that: He You chamber, described left chamber is respectively equipped with two filler openings.
CN201410370788.5A 2014-07-30 2014-07-30 Improved structure of hydraulic cylinder of hydraulic loading system for mill CN104154072A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410370788.5A CN104154072A (en) 2014-07-30 2014-07-30 Improved structure of hydraulic cylinder of hydraulic loading system for mill

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CN104154072A true CN104154072A (en) 2014-11-19

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105065365A (en) * 2015-08-14 2015-11-18 中国铁建重工集团有限公司 Hydraulic cylinder
CN105257622A (en) * 2015-11-09 2016-01-20 无锡市长江液压缸厂 Wear resistant piston rod component for hydraulic cylinder

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CN201006445Y (en) * 2007-02-15 2008-01-16 辽阳新力源电站矿山设备有限公司 Large-scale upright rollmill capsule type hydraulic cylinder
CN201627774U (en) * 2010-03-28 2010-11-10 董玉芬 High-pressure heavy cylinder
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CN201884362U (en) * 2010-08-17 2011-06-29 北京福坛嘉业科技有限公司 No-leakage and constant performance wear compensation type hydraulic cylinder
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105065365A (en) * 2015-08-14 2015-11-18 中国铁建重工集团有限公司 Hydraulic cylinder
CN105257622A (en) * 2015-11-09 2016-01-20 无锡市长江液压缸厂 Wear resistant piston rod component for hydraulic cylinder

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