CN202756337U - Hydraulic cylinder for car dumper - Google Patents

Hydraulic cylinder for car dumper Download PDF

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Publication number
CN202756337U
CN202756337U CN 201220313561 CN201220313561U CN202756337U CN 202756337 U CN202756337 U CN 202756337U CN 201220313561 CN201220313561 CN 201220313561 CN 201220313561 U CN201220313561 U CN 201220313561U CN 202756337 U CN202756337 U CN 202756337U
Authority
CN
China
Prior art keywords
cover
piston rod
piston
cylinder
ring
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CN 201220313561
Other languages
Chinese (zh)
Inventor
郭晓林
李强
王红斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanxi Taigang Stainless Steel Co Ltd
Original Assignee
Shanxi Taigang Stainless Steel Co Ltd
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 Shanxi Taigang Stainless Steel Co Ltd filed Critical Shanxi Taigang Stainless Steel Co Ltd
Priority to CN 201220313561 priority Critical patent/CN202756337U/en
Application granted granted Critical
Publication of CN202756337U publication Critical patent/CN202756337U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a hydraulic cylinder for a car dumper. The hydraulic cylinder comprises a lifting lug of a front end cover, the front end cover, a piston, a cylinder barrel, a rear end cover, a piston rod, and a lifting lug of the piston rod, the front end cover and the rear end cover are respectively provided with a hydraulic fluid port and are fastened on two ends of the cylinder barrel, an O-shaped seal ring is located between the front end cover and the cylinder barrel, and an O-shaped seal ring is located between the rear end cover and the cylinder barrel; the piston is installed inside the cylinder barrel, a Y-shaped seal ring is located between one end of the piston and the cylinder barrel, and a Y-shaped seal ring is located between the other end of the piston and the cylinder barrel; one end of the piston rod and the piston are fastened together, the other end of the piston rod is stretched out of the rear end cover and is fastened together with the lifting lug of the piston rod, and a guide sleeve, a third Y-shaped seal ring and a dustproof mat are successively located between the piston rod and the rear end cover from inside to outside. The hydraulic cylinder is characterized in that an X-shaped seal ring/glyd ring is placed in the middle of the piston. By means of the structure, the hydraulic cylinder for the car dumper prevents leakage.

Description

A kind of wagon tipper oil hydraulic cylinder
Technical field
The utility model relates to a kind of wagon tipper oil hydraulic cylinder.
Background technique
The oil hydraulic cylinder of wagon tipper, stacker-reclaimer, mixed-windrowed locomotive is often revealed fault, causes system to occur unusual, and working efficiency reduces, and not only impact is produced and wasted time, and causes waste and the environmental pollution of hydraulic oil; Leak and whole hydraulic system is broken down when serious, termination work can't be guaranteed the feed of sintering machine and blast furnace, and the safety in production that affects the ironworks is carried out smoothly.One of reason mainly is because oil hydraulic cylinder bears certain radial force, and under the effect of radial force, piston rod and cylinder barrel supporting surface friction aggravation make the Sealing on the piston be subject to radial load, cause eccentric wear; Former two is because oil hydraulic cylinder and mechanical connection dimensional accuracy are inadequate therefore, and axial float has the gap into about the 8mm, causes in the course of the work decentraction of oil cylinder, produces other strength, and radial load increases, and is ruptured in oil hydraulic cylinder head or base attachment portion.Existing wagon tipper has with the normal problem that occurs of oil hydraulic cylinder:
1. leak seriously, job insecurity generally can only move June, and the life-span is far below design level.
2. hydraulic cylinder piston rod hanger and the hydraulic cylinder base hanger phenomenon of rupture that happens occasionally in the course of the work.
Summary of the invention
In order to overcome existing wagon tipper with the above-mentioned deficiency of oil hydraulic cylinder, the utility model provides a kind of wagon tipper oil hydraulic cylinder of leaking avoided.
This wagon tipper comprises the hanger of hanger, front cover, piston, cylinder barrel, rear end cover, piston rod and the piston rod of front cover with oil hydraulic cylinder, hanger and the front cover of front cover are integrated, be stamped hydraulic fluid port at front end, be stamped the piston rod hole in the rear end hydraulic fluid port is also arranged, front cover and rear end cover are fastened on respectively the two ends of cylinder barrel, first O-ring seals is arranged between front cover and cylinder barrel, second O-ring seals arranged between rear end cover and cylinder barrel; Piston is installed in the cylinder barrel, and first y-shaped ring and second y-shaped ring are arranged between the two ends of piston and the cylinder barrel; One end and the piston of piston rod tighten together, the 3rd O-ring seals arranged between piston rod and piston, the hanger that the other end of piston rod stretches out outside the piston rod hole of rear end cover with piston rod tightens together, and guide sleeve, the 3rd y-shaped ring and dust-proof cushion are arranged between the piston rod hole of piston rod and rear end cover from inside to outside successively; It is characterized in that: at the middle part of described piston X-shaped seal ring/Glais ring.
Above-mentioned wagon tipper oil hydraulic cylinder, it is characterized in that: also connecting cylinder bottom connecting base and oil hydraulic cylinder top connecting base with hinging shaft, between two inner side surfaces of the hanger of front cover and cylinder bottom connecting base packing ring is arranged, hinging shaft is inserted in the hanger of cylinder bottom connecting base, front cover and the through hole of two packing rings; Between two inner side surfaces of the hanger of piston rod and oil hydraulic cylinder top connecting base a packing ring is arranged respectively also, another hinging shaft is inserted in the hanger of oil hydraulic cylinder top connecting base, piston rod and the through hole of two packing rings.
This wagon tipper is taked said structure with oil hydraulic cylinder, increases together two-way compact type seal ring at piston, such good seal performance, and the life-span is long.Because the oil hydraulic cylinder build is large, heavy, change very inconvenience, generally need cost 6-8 hours, waste time and affect productions, adopt the utility model, but reduce and leak and loss that pollution causes the working life of Effective Raise oil hydraulic cylinder.At oil hydraulic cylinder connection part up and down, increase two back-up rings of 3-4mm, improve the precision of Conncetion cimension, guarantee cylinder body and piston rod coaxality, reduce to bear radial load.The utility model also can be used as the stacker-reclaimer oil hydraulic cylinder.
Description of drawings
Fig. 1 is embodiment's one of the present utility model structural drawing, and cylinder barrel is cut open vertically among the figure.
Fig. 2 is embodiment's two of the present utility model structural drawing, and oil hydraulic cylinder 31 is embodiment one oil hydraulic cylinder among the figure.
Fig. 3 is embodiment's three of the present utility model structural drawing,
Among the above-mentioned figure:
1-hanger, 2-bolt, 3-front cover, 4-O-ring seals, 5-shaft block ring
6-axle sleeve, 7-semi-ring, 8-y-shaped ring, 9-X-shaped seal ring
10-O-ring seals, 11-piston, 12-cushion collar, 13-cylinder barrel
14-piston rod, 15-O-ring seals, 16-guide sleeve, 17-y-shaped ring
18-dust-proof cushion, 19-piston rod hanger adapter sleeve, 20-hanger, 21-bolt
22-rear end cover, 23-hydraulic fluid port, 24-piston rod hole, 25-y-shaped ring, 26-hydraulic fluid port, 27-base connecting plate, 28-hinging shaft, 29-packing ring
30-cylinder bottom connecting base, 31-oil hydraulic cylinder, 32-packing ring, 33-hinging shaft, 34-oil hydraulic cylinder top connecting base 35-Glais ring.
Embodiment
Describe embodiment of the present utility model in detail below in conjunction with embodiment and accompanying drawing thereof, but embodiment of the present utility model is not limited to following embodiment.
Embodiment one
The wagon tipper that Fig. 1 describes comprises the hanger 20 of hanger 1, front cover 3, piston 11, cylinder barrel 13, rear end cover 22, piston rod 14 and the piston rod of front cover with oil hydraulic cylinder, hanger 1 is cast into one with front cover 3, at front cover 3 hydraulic fluid port 26 and piston rod hole 24 are arranged, at rear end cover 22 hydraulic fluid port 23 is arranged, front cover 3 and rear end cover 22 are fastened on respectively the two ends of cylinder barrel 13, between front cover 3 and cylinder barrel 13, O-ring seals 4 is arranged, between rear end cover 22 and cylinder barrel 13, O-ring seals 15 is arranged; Piston 11 is installed in the cylinder barrel 13, has between the two ends of piston 11 and the cylinder barrel 13 y-shaped ring 8 and y-shaped ring 24 are arranged respectively; One end and the piston 11 of piston rod 14 tighten together, between piston rod 14 and piston 11, O-ring seals 10 is arranged, piston rod hole 24 hangers 20 outer and piston rod that the other end of piston rod 14 stretches out rear end cover 22 tighten together, and guide sleeve 16, y-shaped ring 17 and dust-proof cushion 18 are arranged between the piston rod hole 24 of piston rod 14 and rear end cover 22 from inside to outside successively; It is characterized in that: be between the y-shaped ring 8 at piston 11 two ends and the y-shaped ring 25 X-shaped seal ring 9 to be arranged at the middle part of described piston 11.
Embodiment two
The present embodiment is also connecting cylinder bottom connecting base 33 and oil hydraulic cylinder top connecting base 34, see Fig. 2. the coaxality of piston rod 14 and cylinder barrel 13 also affects the leakiness of oil cylinder, in order to improve the sealing that oil hydraulic cylinder 31 is embodiment one oil hydraulic cylinder, reduce the swing of piston rod 14 and cylinder barrel 13, two inner side surface amongs at hanger 1 and cylinder bottom connecting base 30 have a packing ring 29, and hinging shaft 28 is inserted in the through hole of cylinder bottom connecting base 30, hanger 1 and two packing rings 29; At the hanger 20 of piston rod and two inner side surface amongs of oil hydraulic cylinder top connecting base 34 packing ring 32 is arranged, hinging shaft 33 is inserted in the through hole of oil hydraulic cylinder top connecting base 34, hanger 20 and two packing rings 32.The present embodiment uses 2 years without the outward leakage phenomenon.
Embodiment three
See Fig. 3, the present embodiment and embodiment's one difference is that the middle part of described piston 11 is the Glais ring 35(outer ring graphitiferous powder that sealing usefulness is arranged between the y-shaped ring 8 at piston 11 two ends and the y-shaped ring 25), replace X-shaped seal ring 9 with Glais ring 35, other is identical with embodiment's one.

Claims (2)

1. wagon tipper oil hydraulic cylinder, the hanger that comprises hanger, front cover, piston, cylinder barrel, rear end cover, piston rod and the piston rod of front cover, hanger and the front cover of front cover are integrated, be stamped hydraulic fluid port at front end, be stamped the piston rod hole in the rear end hydraulic fluid port is also arranged, front cover and rear end cover are fastened on respectively the two ends of cylinder barrel, and first O-ring seals is arranged between front cover and cylinder barrel, and second O-ring seals arranged between rear end cover and cylinder barrel; Piston is installed in the cylinder barrel, and first y-shaped ring and second y-shaped ring are arranged between the two ends of piston and the cylinder barrel; One end and the piston of piston rod tighten together, the 3rd O-ring seals arranged between piston rod and piston, the hanger that the other end of piston rod stretches out outside the piston rod hole of rear end cover with piston rod tightens together, and guide sleeve, the 3rd y-shaped ring and dust-proof cushion are arranged between the piston rod hole of piston rod and rear end cover from inside to outside successively; It is characterized in that: at the middle part of described piston X-shaped seal ring/Glais ring.
2. according to claim 1 the wagon tipper oil hydraulic cylinder of stating, it is characterized in that: also connecting cylinder bottom connecting base and oil hydraulic cylinder top connecting base with hinging shaft, between two inner side surfaces of the hanger of front cover and cylinder bottom connecting base packing ring is arranged, hinging shaft is inserted in the hanger of cylinder bottom connecting base, front cover and the through hole of two packing rings; Between two inner side surfaces of the hanger of piston rod and oil hydraulic cylinder top connecting base a packing ring is arranged respectively also, another hinging shaft is inserted in the hanger of oil hydraulic cylinder top connecting base, piston rod and the through hole of two packing rings.
CN 201220313561 2012-07-02 2012-07-02 Hydraulic cylinder for car dumper Expired - Fee Related CN202756337U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220313561 CN202756337U (en) 2012-07-02 2012-07-02 Hydraulic cylinder for car dumper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220313561 CN202756337U (en) 2012-07-02 2012-07-02 Hydraulic cylinder for car dumper

Publications (1)

Publication Number Publication Date
CN202756337U true CN202756337U (en) 2013-02-27

Family

ID=47735522

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220313561 Expired - Fee Related CN202756337U (en) 2012-07-02 2012-07-02 Hydraulic cylinder for car dumper

Country Status (1)

Country Link
CN (1) CN202756337U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104047923A (en) * 2014-05-20 2014-09-17 苏州好特斯模具有限公司 Oil cylinder cap for multiple-sealing oil cylinder
CN106439025A (en) * 2016-10-24 2017-02-22 周末 Construction hydraulic cylinder
CN107448435A (en) * 2017-10-16 2017-12-08 从佳乐 A kind of industrial machinery hydraulic cylinder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104047923A (en) * 2014-05-20 2014-09-17 苏州好特斯模具有限公司 Oil cylinder cap for multiple-sealing oil cylinder
CN106439025A (en) * 2016-10-24 2017-02-22 周末 Construction hydraulic cylinder
CN107448435A (en) * 2017-10-16 2017-12-08 从佳乐 A kind of industrial machinery hydraulic cylinder

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130227

Termination date: 20180702