CN103557015A - Multi-expansion hydraulic support column - Google Patents
Multi-expansion hydraulic support column Download PDFInfo
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- CN103557015A CN103557015A CN201310339014.1A CN201310339014A CN103557015A CN 103557015 A CN103557015 A CN 103557015A CN 201310339014 A CN201310339014 A CN 201310339014A CN 103557015 A CN103557015 A CN 103557015A
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- secondary cylinder
- cylinder block
- hydraulic support
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Abstract
The invention provides a multi-expansion hydraulic support column comprising a lengthened bar, two to nine circular grooves, a half ring, a half ring through hole, a U-shaped pin, a secondary cylinder block, a groove, a secondary cylinder block through hole, a secondary cylinder block inner chamber, a primary cylinder block, and an outer cylinder block. The lengthened bar is inserted into the secondary cylinder block inner chamber. The half ring is locked in one circular groove. The half ring on the lengthened bar is then moved to the groove of the secondary cylinder block. The U-shaped pin penetrates the secondary cylinder block through hole and the half ring through hole at the same time to fasten the lengthened bar to the secondary cylinder block. When the maximum height of a hydraulic support is not satisfactory to supporting, the exposed part of the lengthened bar on the secondary cylinder block is lengthened; when the minimum height of the hydraulic support affects movement of the support, the exposed part of the lengthened bar on the secondary cylinder block is shortened. The multi-expansion hydraulic support column has the advantages that the hydraulic support can well support underground space which is high and can also flexibly move in the narrow underground space, the hydraulic support can well adapt to complex mine supporting environments, and labor intensity is reduced for workers.
Description
Technical field
The present invention relates to support apparatus in coal mine, specially refer to a kind of multi-expansion hydraulic support column.
Background technology
Hydraulic support plays very important effect to the safety of protection underground operators, in coal production by a large amount of uses, but owing to being subject to the restriction in space, down-hole, mine requires stricter to the frame type of hydraulic support, transportation, face moving is convenient can meet the hydraulic support of supporting requirement again simultaneously, it is the desirable frame type that mine is produced, and the key that meets this performance requirement is the column of hydraulic support, hydraulic support column can only be realized two flexible at present, the scope of telescopic variation is little, when running into down-hole and needing the spatial variations of supporting larger, original hydraulic support has been incited somebody to action likely supporting not or mobile difficulty, and for the larger hydraulic support of some frame types, when support enters well and work plane resettlement, be subject to the restriction of head-room, need disintegrating transportation, after arriving point of destination, assemble again, increase greatly workman's labour intensity.
Summary of the invention
The object of the invention is for existing deficiency, a kind of multi-expansion hydraulic support column is provided, improve the telescopic variation scope of hydraulic support, make hydraulic support adapt to preferably the protean environment of mine.
Technical scheme of the present invention is achieved in that a kind of multi-expansion hydraulic support column, mainly comprise extension bar, annular groove, semi-ring, semi-ring through hole, U-shaped pin, secondary cylinder body, groove, secondary cylinder body through hole, secondary cylinder intracoelomic cavity, one-level cylinder body, outer cylinder body, bottom valve, upper accent, middle accent, lower accent, extension bar is inserted in secondary cylinder intracoelomic cavity, semi-ring snaps in annular groove, semi-ring on extension bar moves to the groove location on secondary cylinder body, U-shaped pin is simultaneously through secondary cylinder body through hole, semi-ring through hole is fixed on extension bar on secondary cylinder body, on extension bar, there is 2-9 annular groove.
A kind of multi-expansion hydraulic support column provided by the invention, outer cylinder body, one-level cylinder body, the structure of secondary cylinder body is identical with existing two flexible hydraulic support columns with operating principle, extension bar is inserted in secondary cylinder intracoelomic cavity, now extension bar can move freely in secondary cylinder intracoelomic cavity, the maximum height and the minimum constructive height that according to support, need, 2 semi-rings are snapped on extension bar and surround extension bar in corresponding annular groove, then two semi-rings on mobile extension bar are to the groove location on secondary cylinder body, groove passes through semi-ring, extension bar is played to the effect of support, make the semi-ring through hole on extension bar annular groove relative with secondary cylinder body through hole, with U-shaped pin, pass secondary cylinder body through hole and semi-ring through hole, extension bar is fixed on secondary cylinder body, extension bar head connects with back timber, during hydraulic support stand top board, hydraulic support column setting prop, one-level cylinder body, secondary cylinder body is protruding to be acted on back timber top board is formed to support force by extension bar, when hydraulic support is used, running into the maximum height that supporting and space uprises hydraulic support can not meet while supporting, take off U-shaped pin, extend the protruded length of extension bar on secondary cylinder body, while reaching the required column height of the supporting of support, with semi-ring, again snap in annular groove position suitable on extension bar, semi-ring on mobile extension bar is to the groove location on secondary cylinder body, with U-shaped pin, through semi-ring through hole and secondary cylinder body through hole, extension bar is fixed on secondary cylinder body again, when the minimum constructive height that runs into hydraulic support has influence on support mobile, take off U-shaped pin, shrink the protruded length of extension bar on secondary cylinder body, while being reduced to support by required column height, with semi-ring, again snap in annular groove position suitable on extension bar, semi-ring on mobile extension bar is to the groove location on secondary cylinder body, with U-shaped pin, through semi-ring through hole and secondary cylinder body through hole, extension bar is fixed on secondary cylinder body again.
The invention has the beneficial effects as follows: a kind of multi-expansion hydraulic support column providing, make well compare Gao space, supporting down-hole of hydraulic support, can in narrow space, down-hole, move flexibly again, complicated mine support environment is had to stronger adaptive capacity, reduced workman's labour intensity.
accompanying drawing explanation
Fig. 1 is the structural representation that the present invention stretches out completely
Fig. 2 is the structural representation that the present invention retracts completely
Fig. 3 is secondary cylinder body structure schematic diagram
Fig. 4 is semi-loop schematic diagram
Fig. 5 is the top view of Fig. 4
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described, as shown in Figure 1, Figure 2, Figure 3, Figure 4: a kind of multi-expansion hydraulic support column, comprises extension bar 1, annular groove 2, semi-ring 3, semi-ring through hole 4, U-shaped pin 5, secondary cylinder body 6, groove 7, secondary cylinder body through hole 8, secondary cylinder intracoelomic cavity 9, one-level cylinder body 10, outer cylinder body 11, bottom valve 12, upper accent 13, middle accent 14, lower accent 15.
Described a kind of multi-expansion hydraulic support column, as Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Fig. 5, extension bar 1 body of rod is long is 1600mm, bar footpath is 159mm, on extension bar 1, be processed with 3 annular grooves 2, the wide 67mm of annular groove 2, dark is 14mm, the outer radius of semi-ring 3 is 96mm, inside radius is 65.5, height is 65mm, the cylinder diameter of outer cylinder body 11 is 360mm, the cylinder diameter of one-level cylinder body 10 is 270mm, the cylinder diameter of secondary cylinder body 6 is 160mm, the bar footpath of one-level cylinder body 10 is 340mm, the bar footpath of secondary cylinder body 6 is 230mm, outer cylinder body 11, one-level cylinder body 10, the structure of secondary cylinder body 6 is identical with existing two flexible hydraulic support columns with operating principle, extension bar 1 lower end is inserted in secondary cylinder intracoelomic cavity 9, then get a pair of semi-ring 3, from both sides, snap in respectively in first annular groove 2 of extension bar 1 lower end, slow mobile extension bar 1, make the semi-ring 3 on extension bar 1 move to groove 7 positions on secondary cylinder body 6, with U-shaped pin 5, through semi-ring through hole 4 and secondary cylinder body through hole 8, extension bar 1 is fixed on secondary cylinder body 6 again, extension bar 1 top connects with hydraulic support top beam, while needing multi-expansion hydraulic support column to stretch out completely, lower accent 15 feed liquors, middle accent 14 and 13 times liquid of upper accent, while needing multi-expansion hydraulic support column to retract completely, middle accent 14 and upper accent 13 feed liquors, 15 times liquid of lower accent.
Claims (2)
1. a multi-expansion hydraulic support column, mainly comprise extension bar (1), annular groove (2), semi-ring (3), semi-ring through hole (4), U-shaped pin (5), secondary cylinder body (6), groove (7), secondary cylinder body through hole (8), secondary cylinder intracoelomic cavity (9), one-level cylinder body (10), outer cylinder body (11), bottom valve (12), upper accent (13), middle accent (14), lower accent (15), it is characterized in that: extension bar (1) is inserted in secondary cylinder intracoelomic cavity (9), semi-ring (3) snaps in annular groove (2), semi-ring (3) on extension bar (1) moves to groove (7) position on secondary cylinder body (6), U-shaped pin (5) is simultaneously through secondary cylinder body through hole (8), semi-ring through hole (4) is fixed on extension bar (1) on secondary cylinder body (6).
2. multi-expansion hydraulic support column according to claim 1, is characterized in that: on extension bar (1), have 2-9 annular groove (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310339014.1A CN103557015A (en) | 2013-08-06 | 2013-08-06 | Multi-expansion hydraulic support column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310339014.1A CN103557015A (en) | 2013-08-06 | 2013-08-06 | Multi-expansion hydraulic support column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103557015A true CN103557015A (en) | 2014-02-05 |
Family
ID=50011350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310339014.1A Pending CN103557015A (en) | 2013-08-06 | 2013-08-06 | Multi-expansion hydraulic support column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103557015A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912580A (en) * | 2015-05-15 | 2015-09-16 | 四川华蓥山广能集团嘉华机械有限责任公司 | Two-stage hydraulic telescopic and one-stage mechanical telescopic hydraulic support frame upright post |
| CN106185197A (en) * | 2015-04-30 | 2016-12-07 | 上海奥星制药技术装备有限公司 | Full-automatic rotating splicing material-pulling device |
| CN112780319A (en) * | 2021-03-01 | 2021-05-11 | 兖矿东华重工有限公司 | Mining hydraulic support upright post and mining crossheading supporting equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3631681A (en) * | 1968-11-02 | 1972-01-04 | Dobson Ltd W E & F | Mine roof-supporting means |
| CN2301535Y (en) * | 1997-08-20 | 1998-12-23 | 李利华 | Hydraulic prop |
| US6615705B2 (en) * | 2000-09-15 | 2003-09-09 | Dbt Gmbh | Hydraulic cylinder |
| CN201391327Y (en) * | 2009-03-09 | 2010-01-27 | 郑州煤矿机械集团股份有限公司 | Mechanical extension bar prop for hydraulic bracket |
| CN201650314U (en) * | 2010-01-18 | 2010-11-24 | 新乡市东佳煤机有限公司 | Telescopic upright |
-
2013
- 2013-08-06 CN CN201310339014.1A patent/CN103557015A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3631681A (en) * | 1968-11-02 | 1972-01-04 | Dobson Ltd W E & F | Mine roof-supporting means |
| CN2301535Y (en) * | 1997-08-20 | 1998-12-23 | 李利华 | Hydraulic prop |
| US6615705B2 (en) * | 2000-09-15 | 2003-09-09 | Dbt Gmbh | Hydraulic cylinder |
| CN201391327Y (en) * | 2009-03-09 | 2010-01-27 | 郑州煤矿机械集团股份有限公司 | Mechanical extension bar prop for hydraulic bracket |
| CN201650314U (en) * | 2010-01-18 | 2010-11-24 | 新乡市东佳煤机有限公司 | Telescopic upright |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106185197A (en) * | 2015-04-30 | 2016-12-07 | 上海奥星制药技术装备有限公司 | Full-automatic rotating splicing material-pulling device |
| CN106185197B (en) * | 2015-04-30 | 2023-11-28 | 上海奥星制药技术装备有限公司 | Full-automatic rotary splicing pushing device |
| CN104912580A (en) * | 2015-05-15 | 2015-09-16 | 四川华蓥山广能集团嘉华机械有限责任公司 | Two-stage hydraulic telescopic and one-stage mechanical telescopic hydraulic support frame upright post |
| CN112780319A (en) * | 2021-03-01 | 2021-05-11 | 兖矿东华重工有限公司 | Mining hydraulic support upright post and mining crossheading supporting equipment |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140205 |