CN103527223A - Mine single hydraulic prop capable of extending and retracting oppositely - Google Patents
Mine single hydraulic prop capable of extending and retracting oppositely Download PDFInfo
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- CN103527223A CN103527223A CN201310540052.3A CN201310540052A CN103527223A CN 103527223 A CN103527223 A CN 103527223A CN 201310540052 A CN201310540052 A CN 201310540052A CN 103527223 A CN103527223 A CN 103527223A
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Abstract
The invention relates to a mine single hydraulic prop capable of extending and retracting oppositely, and the mine single hydraulic prop is mainly used for coal mine underground coal face top plate supporting. The mine single hydraulic prop comprises an upper single hydraulic prop and a lower single hydraulic prop, and the upper single hydraulic prop and the lower single hydraulic prop are oppositely communicated through a common base body. The mine single hydraulic prop has the advantages of being large in working operation, high in supporting strength, reasonable in design, small in smallest height, practical in conveying and lifting, and convenient to use, repair and manage.
Description
Technical field
The present invention relates to a kind of mining telescopic-single-body hydraulic prop in opposite directions that under coal mine, coal-face roof timbering is used that is mainly used in.
Background technology
In prior art, mine individual hydraulic prop both can adopt face timbering top board and fully-mechanized mining working supporting termination for high-grade conventional mining and big gun with metal hinge top beam is supporting, also can do separately a post or other temporary supporting and use.
Mine individual hydraulic prop comprises hydraulic prop of outside injection type hydraulic pillar (outer feed flow formula), internal-injection type hydraulic prop (interior oil feeding type), floated type single hydraulic prop stay, aluminium alloy hydraulic single prop, Intermediate Gray adapter sleeve (as ZL88217901.2 patent documentation) etc., and conventional is outside injection type hydraulic pillar.The stroke that post alive and oil cylinder relatively move is conventionally at 800mm-1000mm; Cylinder diameter is conventionally at 80-120mm, supporting height 0.63-4.5m.The post of living coordinates employing piston type or plunger type conventionally with oil cylinder.
The common basic structure of mining outside injection type hydraulic pillar comprises from the bottom to top the base, the oil cylinder that connect in turn, is enclosed within in-oil cylinder post alive, there is cap the post upper end of living; On post alive, there is horizontal slotting triple-use valve (liquid-filling valve); Oil cylinder upper end cover has handle body, and some liquid-filling valves are on handle body; In post alive, be axially mounted with return spring; Seal in addition the seal at position.For easy to operate, reduce triple-use valve height be set, by hydraulic prop by the cylinder pedestal in oil cylinder, adapter sleeve, lengthening section, adapter sleeve, form (ZL01279828.2 patent documentation), triple-use valve is horizontal to be inserted on adapter sleeve.Its shortcoming is that between oil cylinder and post alive, flexible stroke is short, conventionally at 800mm-1000mm, has limited supporting height scope; Coal seam to differing heights, need to be equipped with the pillar of plurality of specifications.
In order to improve stroke, some floated type single hydraulic prop stays adopt inside and outside cylinder or a plurality of oil cylinder to be coaxially socketed, and form Multi-section retractable or two telescopic (as ZL02160388.X patent documentation), its shortcoming is to cause pillar chap, and difficulty of processing is large, raises the cost, weight is large, fragile.
Also have a kind of floated type single hydraulic prop stay, adopt single oil cylinder, single post of living, handle body is enclosed within on oil cylinder, live post in the sealing of handle body place, and oil cylinder is simply processed or cold-drawn, and the post that can make to live stretches 1.8 meters, excessive concentrated stroke, makes column strength step-down, affects application life.
Summary of the invention
Order of the present invention is to provide a kind of stroke extension that is conducive to for above-mentioned deficiency, improves supporting height, reduces pillar model, the mining telescopic-single-body hydraulic prop in opposite directions of wide accommodation.
The object of the present invention is achieved like this: mining telescopic-single-body hydraulic prop in opposite directions comprises hydraulic prop and inverted lower hydraulic prop, between upper and lower hydraulic prop, by shared base body, relatively connected and communicate.
In such scheme, specifically: upper hydraulic prop comprises the oil cylinder post alive that top cooperatively interacts flexible, and upper end is connected with cap, and cover has the upper handle body of guiding; Lower hydraulic prop is that bottom is connected with the inverted oil cylinder that cooperatively interacts flexible post alive, and cover has the lower handle body of guiding, and bottom is connected with base.Be further defined to: the oil cylinder post alive that top cooperatively interacts flexible is connected by adapter sleeve and the bottom inverted oil cylinder that cooperatively interacts flexible post alive, and triple-use valve is horizontal to be inserted on adapter sleeve, triple-use valve is communicated with the upper and lower oil cylinder that cooperatively interacts flexible post alive.
Mining telescopic-single-body hydraulic prop in opposite directions, annexation is from top to bottom: cap is connected with upper post alive, upper post sleeve alive in upper cylinder, upper cylinder lower end is connected with adapter sleeve upper end, adapter sleeve lower end is connected with lower oil cylinder upper end, lower post sleeve alive in lower oil cylinder, lower post alive lower end is connected with base; Upper cylinder upper end is with upper handle body; Lower oil cylinder lower end is with lower handle body.
The post of living coordinates employing piston type or plunger type with oil cylinder.
Flexible stroke sum total between oil cylinder and the post of living, between 1000-2000mm, is greater than the stroke (800 or 1000mm) of conventional hydraulic prop, reaching by increasing impulse stroke, improve the object of supporting height scope.
The oil cylinder post alive that cooperatively interacts flexible refers to that post alive is inserted in oil cylinder from oil cylinder upper end, or the post that refers to live is inserted in oil cylinder from oil cylinder lower end." in opposite directions flexible " refers to that two posts alive stretch out round about or to relative direction indentation.
Upper and lower oil cylinder is Split type structure, adopts adapter sleeve to connect.Two cylinder pedestals are four-way structure; therefore; upper and lower oil cylinder working-pressure connects; form two live posts in oil cylinder in free axially loaded state; when upper and lower post alive is subject to top board and Bottom Pressure; directly by the post liquid body compensator or trimmer pressure of living, thereby the key components and parts such as oil cylinder, adapter sleeve, feed liquor four-way have been protected.
This pillar adopts two oil cylinders, is up and down and vertically arranges, forms Biextension action, as: up stroke is 800-1000mm, and down stroke is 500-900mm.
Advantage of the present invention is: 1, great advantage of the present invention is to have increased impulse stroke, improved supporting height scope and intensity.Impulse stroke as upper and lower in pillar adds up to 1860mm, and this pillar height is contained 2.8m, 3.15m, 3.5m, 3.8m, 4.0m, 4.2m, seven kinds of specification pillars of 4.5m.Impulse stroke as upper and lower in pillar adds up to 1360mm, and this pillar height is contained 2.2m, 2.5m, 2.8m, 3.15m, five kinds of specification pillars of 3.5m, is applicable to the coal seam of supporting differing heights.Because stroke is large, reduce carrying number of times, reduce labor intensity, greatly reduce cost of production, also greatly reduce the quantity of stock plurality of specifications pillar, thereby saved extensive fund simultaneously, reduce storehouse and take up an area.2, yield load is large, and safety factor is high.A pillar is due to highly different, and the intensity that it supports is also different.If coal seam height changes, pillar height reduces use, and working resistance will increase, and therefore, can strengthen supporting spacing, reduces pillar quantity.3, all component can exchange, and maintenance, use cost is low.Mining telescopic-single-body hydraulic prop is in opposite directions interchangeable general, easy to maintenance with the pillar component of all DW series that applicant company produced originally.4, lightweight, long service life.What mining telescopic-single-body hydraulic prop in opposite directions adopted is high-quality steel, oil cylinder inner liner stainless steel cover, and the critical components such as post of living are through special preservative treatment, and its life-span is 3-5 times that column life is propped up by other producer.5, pillar design is reasonable.Upper and lower oil cylinder is Split type structure, adopts adapter sleeve to connect.Two cylinder pedestals are four-way structure; therefore; upper and lower oil cylinder working-pressure connects; form two live posts in oil cylinder in free axially loaded state; when upper and lower post alive is subject to top board and Bottom Pressure; directly by the post liquid body compensator or trimmer pressure of living, thereby the key components and parts such as oil cylinder, adapter sleeve, feed liquor four-way have been protected.6, pillar minimum constructive height is little, and transportation, column is very practical.The column work that two workmans of former cause complete, a present workman can complete.The center of gravity of pillar is again in the middle and lower part of pillar, therefore do not have the problem of top heavy, and the inconvenient problem while having solved supporting has reached the effect of safety labor-saving.7, pillar stock more than 2.0m only has two kinds of specifications, manageable.Two kinds of pillars can support the coal seam of 2140mm-4500mm, thus use, keep in repair, manage, very convenient.
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is structure diagram of the present invention.
Fig. 2 is second embodiment of the invention structure diagram.
The specific embodiment
Referring to Fig. 1,2, component title is as follows: cap 1, base 2, adapter sleeve 3, triple-use valve 4, upper post 5 alive, upper cylinder 6, lower oil cylinder 7, lower post 8 alive, upper handle body 9, lower handle body 10, upper spring 11, lower spring 12, upper piston 13, lower piston 14, cylinder pedestal 15, up stroke L, down stroke L1.
Referring to Fig. 1, mining telescopic-single-body hydraulic prop is in opposite directions external poured, piston cylinder operator, is the short status of retracting in Fig. 1.Mining telescopic-single-body hydraulic prop is in opposite directions as two pillars, and one upright, and a handstand, is formed by connecting up and down.Mining telescopic-single-body hydraulic prop in opposite directions comprises that annexation is from top to bottom: cap 1 is connected with upper post 5 alive, upper post 5 sleeves alive in upper cylinder 6, upper end connects, adapter sleeve 3 lower ends are connected with lower oil cylinder 7 upper ends for upper cylinder 6 lower ends and adapter sleeve 3 (in Fig. 1, for straight cover, can be also Ka Yaotao), lower post 8 sleeves alive in lower oil cylinder 7, lower post alive 8 lower ends are connected with base 2; Upper cylinder 6 upper ends are with upper handle body 9; Lower oil cylinder 7 lower ends are with lower handle body 10.In upper post alive 5, be mounted with upper spring 11, in lower post 8 alive, be mounted with lower spring 12.Upper post alive 5 lower ends are connected with upper piston 13, and lower post alive 8 upper ends are connected with lower piston 14.Between two oil cylinders in adapter sleeve 3, being connected with cylinder pedestal 15, is four-way structure, and with upper cylinder 6, lower oil cylinder 7 communicates, with triple-use valve 4 to logical.Upper post alive 5 protrudes upward up stroke L(L=800mm, 1000mm etc., is not limited to this), lower post 8 alive stretches out down stroke L1(L1=560mm, 800,860mm etc. downwards, is not limited to this).Lower handle body 10 is not with a body, only has sheath structure, descends the handle body 10 can be body is removed, but body retains.
Referring to Fig. 2, mining telescopic-single-body hydraulic prop is in opposite directions external poured, plunger-type structure, there is no piston, and handle body is enclosed within on oil cylinder, and the post of living seals at handle body place.In Fig. 2, be the short status of retracting, other same Fig. 1.
Concrete technical data is detail as per following table (being not limited to this):
Operating principle: in the time of column, fluid injection gun is inserted to the triple-use valve 4 on adapter sleeve 3, to upper cylinder 6, the interior while fluid injection of lower oil cylinder 7, under hydraulic action, it is up stroke L that upper post 5 alive, lower post 8 maximums alive are stretched out stroke, down stroke L1 forms supporting.Otherwise, pressure release, under upper spring 11, lower spring 12 effects, upper post 5 alive, lower post 8 alive are retracted.
Mining telescopic-single-body hydraulic prop is in opposite directions applicable to hydraulic prop of outside injection type hydraulic pillar (outer feed flow formula), internal-injection type hydraulic prop (interior oil feeding type), floated type single hydraulic prop stay, aluminium alloy hydraulic single prop, Intermediate Gray adapter sleeve etc.Description above, is the specific embodiment of the present invention, and various not illustrating is construed as limiting flesh and blood of the present invention.
Claims (7)
1. a mining telescopic-single-body hydraulic prop in opposite directions, is characterized in that comprising hydraulic prop and inverted lower hydraulic prop, between upper and lower hydraulic prop, by shared base body, is relatively connected and communicates.
2. according to mining telescopic-single-body hydraulic prop in opposite directions claimed in claim 1, it is characterized in that hydraulic prop comprises the oil cylinder post alive that top cooperatively interacts flexible, upper end is connected with cap (1), and cover has the upper handle body (9) of guiding; Lower hydraulic prop is that bottom is connected with the inverted oil cylinder that cooperatively interacts flexible post alive, and cover has the lower handle body (10) of guiding, and bottom is connected with base (2).
3. according to mining telescopic-single-body hydraulic prop in opposite directions claimed in claim 2, it is characterized in that the oil cylinder post alive that top cooperatively interacts flexible is connected by adapter sleeve (3) and the bottom inverted oil cylinder that cooperatively interacts flexible post alive, triple-use valve (4) is horizontal is inserted in adapter sleeve (3) above, and triple-use valve (4) is communicated with the upper and lower oil cylinder that cooperatively interacts flexible post alive.
4. according to mining telescopic-single-body hydraulic prop in opposite directions claimed in claim 3, it is characterized in that annexation is from top to bottom: cap (1) is connected with upper post alive (5), upper post alive (5) sleeve in upper cylinder (6), upper cylinder (6) lower end is connected with adapter sleeve (3) upper end, adapter sleeve (3) lower end is connected with lower oil cylinder (7) upper end, lower post alive (8) sleeve in lower oil cylinder (7), lower post alive (8) lower end is connected with base (2); Upper cylinder (6) upper end is with upper handle body (9); Lower oil cylinder (7) lower end is with lower handle body (10).
5. according to mining telescopic-single-body hydraulic prop in opposite directions claimed in claim 4, the post that it is characterized in that living coordinates employing piston type or plunger type with oil cylinder.
6. according to the arbitrary described mining telescopic-single-body hydraulic prop in opposite directions of claim 1-5, it is characterized in that the flexible stroke between oil cylinder and post alive is summed up between 1000-2000mm.
7. according to the arbitrary described mining telescopic-single-body hydraulic prop in opposite directions of claim 1-5, it is characterized in that lower handle body (10) is not with a body, only there is sheath structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310540052.3A CN103527223A (en) | 2013-11-05 | 2013-11-05 | Mine single hydraulic prop capable of extending and retracting oppositely |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310540052.3A CN103527223A (en) | 2013-11-05 | 2013-11-05 | Mine single hydraulic prop capable of extending and retracting oppositely |
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| CN103527223A true CN103527223A (en) | 2014-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310540052.3A Pending CN103527223A (en) | 2013-11-05 | 2013-11-05 | Mine single hydraulic prop capable of extending and retracting oppositely |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819002A (en) * | 2015-04-23 | 2015-08-05 | 辽宁工程技术大学 | Constant resistance avoiding energy-absorbing device for mining |
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|---|---|---|---|---|
| DE1931627B2 (en) * | 1969-06-21 | 1977-06-30 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | HYDRAULIC TELESCOPIC STAMP |
| SU825991A1 (en) * | 1977-10-27 | 1981-04-30 | Kemer Otdel Vni Pk Ugolnogo I | Double-telescopicity double-action hydraulic cylinder |
| CN86203286U (en) * | 1986-05-23 | 1987-09-16 | 通化市煤矿机械厂 | Individual hydraulic prop with light alloy-core tube |
| CN2184782Y (en) * | 1994-02-24 | 1994-12-07 | 姜星柱 | Outer injection single hydraulic prop |
| CN2522620Y (en) * | 2001-12-30 | 2002-11-27 | 秦皇岛市显星煤矿机械厂 | Mining monoblock hydraulic prop |
| CN201554477U (en) * | 2009-11-20 | 2010-08-18 | 兖矿集团有限公司 | Novel individual hydraulic prop |
| CN201982118U (en) * | 2011-03-29 | 2011-09-21 | 姜星柱 | Individual hydraulic prop with connecting sleeve |
| CN202250112U (en) * | 2011-10-11 | 2012-05-30 | 李德军 | Mining single spiral pillar |
| CN203531928U (en) * | 2013-11-05 | 2014-04-09 | 姜星柱 | Face-to-face extensible individual hydraulic supporting column for mines |
-
2013
- 2013-11-05 CN CN201310540052.3A patent/CN103527223A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1931627B2 (en) * | 1969-06-21 | 1977-06-30 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | HYDRAULIC TELESCOPIC STAMP |
| SU825991A1 (en) * | 1977-10-27 | 1981-04-30 | Kemer Otdel Vni Pk Ugolnogo I | Double-telescopicity double-action hydraulic cylinder |
| CN86203286U (en) * | 1986-05-23 | 1987-09-16 | 通化市煤矿机械厂 | Individual hydraulic prop with light alloy-core tube |
| CN2184782Y (en) * | 1994-02-24 | 1994-12-07 | 姜星柱 | Outer injection single hydraulic prop |
| CN2522620Y (en) * | 2001-12-30 | 2002-11-27 | 秦皇岛市显星煤矿机械厂 | Mining monoblock hydraulic prop |
| CN201554477U (en) * | 2009-11-20 | 2010-08-18 | 兖矿集团有限公司 | Novel individual hydraulic prop |
| CN201982118U (en) * | 2011-03-29 | 2011-09-21 | 姜星柱 | Individual hydraulic prop with connecting sleeve |
| CN202250112U (en) * | 2011-10-11 | 2012-05-30 | 李德军 | Mining single spiral pillar |
| CN203531928U (en) * | 2013-11-05 | 2014-04-09 | 姜星柱 | Face-to-face extensible individual hydraulic supporting column for mines |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819002A (en) * | 2015-04-23 | 2015-08-05 | 辽宁工程技术大学 | Constant resistance avoiding energy-absorbing device for mining |
| CN104819002B (en) * | 2015-04-23 | 2019-08-06 | 辽宁工程技术大学 | Mining constant-resistance resigning energy absorption device |
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Application publication date: 20140122 |