CN104525300A - Hydraulic lifting mechanism of cone crusher - Google Patents
Hydraulic lifting mechanism of cone crusher Download PDFInfo
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- CN104525300A CN104525300A CN201410852097.9A CN201410852097A CN104525300A CN 104525300 A CN104525300 A CN 104525300A CN 201410852097 A CN201410852097 A CN 201410852097A CN 104525300 A CN104525300 A CN 104525300A
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Abstract
The invention relates to the field of mining equipment. A hydraulic lifting mechanism of a cone crusher comprises a hydraulic cylinder, a piston arranged in the hydraulic cylinder and capable of sliding up and down, and a cylinder bottom cover fixed to the opening position at the lower end of the hydraulic cylinder, wherein a hydraulic oil channel is arranged on the cylinder bottom cover. An upper guide belt and an O-shaped seal ring are arranged between the piston and the upper end of the hydraulic cylinder. A lower guide belt and a V-shaped overlapping seal are arranged between the piston and the lower end of the hydraulic cylinder. The upper guide belt and the lower guide belt are arranged between the hydraulic cylinder and the piston in an interference mode. A V-shaped opening of the V-shaped overlapping seal faces downwards. The middle of the lower end of the piston protrudes downwards. The lower end of the piston is sleeved with a piston gland for positioning the V-shaped overlapping seal along the protruding part of the piston. The piston gland and the piston are fixed through bolts. The lower end face of the piston gland is higher than the lower end face of the protruding part of the piston. The hydraulic lifting mechanism is stable, not prone to damage and good in sealing performance.
Description
Technical field
The present invention relates to mining equiment field, particularly relate to a kind of hydraulicefficiency elevation structure of gyratory crusher.
Background technology
Gyratory crusher is a kind of mining machinery for broken building stones, its principle be the mantle main shaft group of being rotated by swing and fixed bore between mutual attrition crushing building stones; Mantle in mantle main shaft group and fixed bore between be the crusher chamber of gyratory crusher.In order to the building stones of output variable grain size, existing gyratory crusher is provided with the hydraulicefficiency elevation structure for adjusting mantle main shaft group axial height, by hydraulicefficiency elevation structure adjustment crusher chamber size.The hydraulicefficiency elevation structure of existing gyratory crusher generally comprises hydraulic cylinder and is slidably arranged in the piston in hydraulic cylinder, and be arranged on the cylinder body bottom at hydraulic cylinder lower ending opening place, cylinder body bottom offers hydraulic oil channel, between piston side and hydraulic cylinder, location and installation has oil sealing, and piston lower surface is provided with the piston gland for positioning oil seal.But the hydraulicefficiency elevation structure of existing gyratory crusher generally exists the weak point of following two aspects: 1, oil sealing sealing poor effect, when hydraulic oil pressure is excessive, often there will be oil impregnate phenomenon; 2, piston gland is directly fixed on piston lower surface by bolt; Due to gyratory crusher broken load, vibrations larger, piston can produce deflection due to vibrations, when hydraulic pressure oil level is too low, piston gland directly connects with cylinder body bottom, produce between piston gland deflection and cylinder body bottom and rub, finally may cause the bolt fracture of fixed piston gland, piston gland and oil sealing come off, and hydraulicefficiency elevation structure cannot normally use.
Summary of the invention
In order to solve the problem, the object of the present invention is to provide a kind of hydraulicefficiency elevation structure of gyratory crusher, this hydraulicefficiency elevation structure is stable, not fragile, and good airproof performance.
In order to realize above-mentioned object, present invention employs following technical scheme:
A hydraulicefficiency elevation structure for gyratory crusher, comprises hydraulic cylinder, and to be arranged in hydraulic cylinder and the piston that can slide up and down, and is fixed on the cylinder body bottom at hydraulic cylinder lower ending opening place; Described cylinder body bottom is provided with hydraulic oil channel, and the inner opening of hydraulic oil channel is on cylinder body bottom end face, and the outer end opening of hydraulic oil channel is on cylinder body bottom side; Be provided with guidance tape and O-ring seals between described piston and hydraulic cylinder upper end, between piston and hydraulic cylinder bottom, be provided with that lower guidance tape and V-arrangement are folded to be sealed; Upper guidance tape and lower guidance tape interference are arranged between hydraulic cylinder and piston, and the V-arrangement that V-arrangement folds envelope is opening down; The middle part of described piston is protruded downwards, and piston is arranged with the piston gland folding envelope for locating V-arrangement along its protuberance, be bolted between piston gland and piston, and the lower surface of piston gland is higher than the lower surface of piston protuberance.
As preferably, described upper guidance tape and the equal location and installation of O-ring seals are in the interior sidewall surface of hydraulic cylinder.
As preferably, the inside center place of described cylinder body bottom is also provided with the displacement transducer for detecting piston position, and the upper end of displacement transducer is located in piston centre place.
The present invention adopts technique scheme, the hydraulicefficiency elevation structure of this gyratory crusher has the advantage of following two aspects: 1, V-arrangement between piston and hydraulic cylinder is folded envelope and is used for preventing hydraulic oil seepage, maintain stability hydraulic, the V-arrangement that V-arrangement folds envelope is opening down, and namely V-arrangement folds the V-arrangement opening of envelope towards hydraulic oil, under the effect of hydraulic oil V-arrangement opening can extended, open, thus make the interference of V-arrangement folded envelope be arranged between hydraulic cylinder and piston, better tightness; 2, the lower surface of piston gland is higher than the lower surface of piston protuberance, and when hydraulic pressure oil level is too low, piston protuberance can preferential and cylinder body bottom offset, and piston gland then can not connect with cylinder body bottom; When piston produces deflection due to vibrations, piston gland can not be subject to the frictional force hindering it to deflect; Therefore under this structure, the bolt of fixed piston gland generally can not be twisted off, and is connected firmly between piston gland and piston, thus guarantees the sealing of hydraulicefficiency elevation structure.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the invention are described in further detail.
The hydraulicefficiency elevation structure of a kind of gyratory crusher as shown in Figure 1, comprise hydraulic cylinder 71, and be located at hydraulic cylinder 71 and can slide up and down piston 72, and be fixed on the cylinder body bottom 73 at hydraulic cylinder 71 lower ending opening place, cylinder body bottom 73 is provided with hydraulic oil channel 731, the inner opening of hydraulic oil channel 731 is on cylinder body bottom 73 end face, and the outer end opening of hydraulic oil channel 731 is on cylinder body bottom 73 side.During use, hydraulic oil channel 731 connects hydraulic oil unit by oil pipe, by hydraulic oil unit control piston 72 lower end hydraulic pressure oil level, thus impels piston 72 to move axially, and then changes the height of mantle main shaft group, adjustment crusher chamber size.In addition, be provided with the displacement transducer 74 for detecting piston 72 position at the inside center place of cylinder body bottom 73, displacement transducer 74 is connected with middle control computer, and the upper end of displacement transducer is located in piston centre place.
Be provided with guidance tape 75 and O-ring seals 76 from top to bottom successively between described piston 72 and hydraulic cylinder 71 upper end, upper guidance tape 75 and O-ring seals 76 are all located on hydraulic cylinder 71; Be provided with lower guidance tape 77 from top to bottom successively between piston 72 and hydraulic cylinder 71 bottom and V-arrangement folds envelope 78, the V-arrangement that V-arrangement folds envelope 78 is opening down; Described upper guidance tape 75 and the interference of lower guidance tape 77 are arranged between hydraulic cylinder 71 and piston 72, and upper guidance tape and lower guidance tape are used for the relative movement between guide piston and hydraulic cylinder, and can prevent piston from directly contacting with hydraulic cylinder, wearing and tearing; O-ring seals 76 is for preventing the lubricating oil outside hydraulicefficiency elevation structure dirty; V-arrangement folds envelope 78 for the gap between sealed hydraulic cylinder body 71 and piston 72 lower end, and V-arrangement is folded envelope and is used for preventing hydraulic oil seepage, maintains stability hydraulic; And the V-arrangement that V-arrangement folds envelope 78 is opening down, namely V-arrangement opening is towards hydraulic oil, under the effect of hydraulic oil V-arrangement opening can extended, open, thus make V-arrangement fold envelope 78 interference to be arranged between hydraulic cylinder 71 and piston 72, better tightness.
The middle part of described piston 72 lower end is protruded downwards, its protuberance 721 of piston 72 lower end edge is arranged with piston gland 79, piston gland 79 folds envelope 78 for the V-arrangement between positioning piston 72 and hydraulic cylinder 71, be bolted between piston gland 79 and piston 72, the lower surface of piston gland 79 is higher than the lower surface of protuberance 721; Namely, when the protuberance 721 of piston offsets with cylinder body bottom 73, there is space between piston gland 79 and cylinder body bottom 73, even if piston produces deflection due to vibrations, piston gland can not be subject to the frictional force hindering it to deflect; Therefore under this structure, the bolt of fixed piston gland generally can not be twisted off, and is connected firmly between piston gland and piston, thus guarantees the sealing of hydraulicefficiency elevation structure.
In sum, the hydraulicefficiency elevation structure of this gyratory crusher has the advantage of following two aspects: 1, V-arrangement between piston and hydraulic cylinder is folded envelope and is used for preventing hydraulic oil seepage, maintain stability hydraulic, the V-arrangement that V-arrangement folds envelope is opening down, and namely V-arrangement folds the V-arrangement opening of envelope towards hydraulic oil, under the effect of hydraulic oil V-arrangement opening can extended, open, thus make the interference of V-arrangement folded envelope be arranged between hydraulic cylinder and piston, better tightness; 2, the lower surface of piston gland is higher than the lower surface of piston protuberance, and when hydraulic pressure oil level is too low, piston protuberance can preferential and cylinder body bottom offset, and piston gland then can not connect with cylinder body bottom; When piston produces deflection due to vibrations, piston gland can not be subject to the frictional force hindering it to deflect; Therefore under this structure, the bolt of fixed piston gland generally can not be twisted off, and is connected firmly between piston gland and piston, thus guarantees the sealing of hydraulicefficiency elevation structure.
Claims (3)
1. a hydraulicefficiency elevation structure for gyratory crusher, comprises hydraulic cylinder, and to be arranged in hydraulic cylinder and the piston that can slide up and down, and is fixed on the cylinder body bottom at hydraulic cylinder lower ending opening place; Described cylinder body bottom is provided with hydraulic oil channel, and the inner opening of hydraulic oil channel is on cylinder body bottom end face, and the outer end opening of hydraulic oil channel is on cylinder body bottom side; It is characterized in that: between described piston and hydraulic cylinder upper end, be provided with guidance tape and O-ring seals, between piston and hydraulic cylinder bottom, be provided with that lower guidance tape and V-arrangement are folded to be sealed; Upper guidance tape and lower guidance tape interference are arranged between hydraulic cylinder and piston, and the V-arrangement that V-arrangement folds envelope is opening down; The middle part of described piston is protruded downwards, and piston is arranged with the piston gland folding envelope for locating V-arrangement along its protuberance, be bolted between piston gland and piston, and the lower surface of piston gland is higher than the lower surface of piston protuberance.
2. the hydraulicefficiency elevation structure of a kind of gyratory crusher according to claim 1, is characterized in that: described upper guidance tape and the equal location and installation of O-ring seals are in the interior sidewall surface of hydraulic cylinder.
3. the hydraulicefficiency elevation structure of a kind of gyratory crusher according to claim 1, is characterized in that: the inside center place of described cylinder body bottom is also provided with the displacement transducer for detecting piston position, and the upper end of displacement transducer is located in piston centre place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410852097.9A CN104525300B (en) | 2014-12-31 | 2014-12-31 | Hydraulic lifting mechanism of cone crusher |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410852097.9A CN104525300B (en) | 2014-12-31 | 2014-12-31 | Hydraulic lifting mechanism of cone crusher |
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| Publication Number | Publication Date |
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| CN104525300A true CN104525300A (en) | 2015-04-22 |
| CN104525300B CN104525300B (en) | 2017-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410852097.9A Active CN104525300B (en) | 2014-12-31 | 2014-12-31 | Hydraulic lifting mechanism of cone crusher |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168760A (en) * | 2011-04-12 | 2011-08-31 | 皇甫岳伟 | Sealing structure with favorable safety for piston cylinder |
| CN202441887U (en) * | 2012-02-28 | 2012-09-19 | 太原重工股份有限公司 | Sealing device for hydraulic cylinder of gyratory crusher |
| CN202719130U (en) * | 2012-07-19 | 2013-02-06 | 衢州美安普矿山机械有限公司 | V-shaped multilayer sealing structure of hydraulic cylinder |
| CN103697092A (en) * | 2013-12-31 | 2014-04-02 | 贵州永兴风能制动器有限责任公司 | High-compressive hydraulic cylinder |
| JP2014200739A (en) * | 2013-04-04 | 2014-10-27 | 三菱重工環境・化学エンジニアリング株式会社 | Seal structure and crushing device including the seal structure |
| CN203962548U (en) * | 2014-04-11 | 2014-11-26 | 镇平金润液压设备有限公司 | A kind of hydraulic jack double seal assembly |
-
2014
- 2014-12-31 CN CN201410852097.9A patent/CN104525300B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168760A (en) * | 2011-04-12 | 2011-08-31 | 皇甫岳伟 | Sealing structure with favorable safety for piston cylinder |
| CN202441887U (en) * | 2012-02-28 | 2012-09-19 | 太原重工股份有限公司 | Sealing device for hydraulic cylinder of gyratory crusher |
| CN202719130U (en) * | 2012-07-19 | 2013-02-06 | 衢州美安普矿山机械有限公司 | V-shaped multilayer sealing structure of hydraulic cylinder |
| JP2014200739A (en) * | 2013-04-04 | 2014-10-27 | 三菱重工環境・化学エンジニアリング株式会社 | Seal structure and crushing device including the seal structure |
| CN103697092A (en) * | 2013-12-31 | 2014-04-02 | 贵州永兴风能制动器有限责任公司 | High-compressive hydraulic cylinder |
| CN203962548U (en) * | 2014-04-11 | 2014-11-26 | 镇平金润液压设备有限公司 | A kind of hydraulic jack double seal assembly |
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| CN104525300B (en) | 2017-01-18 |
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Address after: 313100 Industrial Park, Heping Town, Changxing County, Huzhou, Zhejiang Patentee after: Zhejiang mining heavy industry Co.,Ltd. Address before: 313103 huicheling Industrial Park, Heping Town, Changxing County, Huzhou City, Zhejiang Province Patentee before: ZHEJIANG ZHE KUANG HEAVY INDUSTRIES Co.,Ltd. |
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