CN103046938A - Single hydraulic prop for mines - Google Patents
Single hydraulic prop for mines Download PDFInfo
- Publication number
- CN103046938A CN103046938A CN2013100106444A CN201310010644A CN103046938A CN 103046938 A CN103046938 A CN 103046938A CN 2013100106444 A CN2013100106444 A CN 2013100106444A CN 201310010644 A CN201310010644 A CN 201310010644A CN 103046938 A CN103046938 A CN 103046938A
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- Prior art keywords
- hydraulic prop
- sleeve
- post
- oil cylinder
- individual hydraulic
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Abstract
The invention discloses a single hydraulic prop for mines. The single hydraulic prop for mines include an oil cylinder, movable rods, sleeves, a top cover, a base, a three-use valve and handles, wherein movable rods are sleeved in the sleeves, the base is arranged at the one end of the oil cylinder and handles are arranged on the other end of the oil cylinder, the movable rods are provided with installation portions. Connection portions which match with installation portions in an embedded mode are arranged on sleeves. Sleeves are sleeved outside the movable rods of the single hydraulic prop for mines by connection portions so that the movable rods are protected effectively, damages to the single hydraulic prop due to firecracker are avoided, sleeves have corrosion resistance, the service life of the single hydraulic prop can be extended greatly and environmental pollution is avoided during manufacturing.
Description
Technical field
The present invention relates to a kind of hydraulic prop, particularly a kind of mine individual hydraulic prop.
Background technology
Existing suspension type of force plunger mine individual hydraulic prop adopts the plunger type technology, high pressure sealing face is arranged on outer surface of column structure alive, the post of living is exposed in the air, existing hydraulic prop is that the external surface at the post of living carries out chromium plating or chemical plating, this mode can improve the external surface hardness of post alive to a certain extent, improve the performance of the post of living, but coating comes off easily, the post fearness of living big gun collapses and can pollute during fabrication.The another kind of post of living is composite steel tube, and viscoelastic polyurethane jelly, bonding is adopted at the basic interface of layer of living between post and the stainless steel sleeve, and bond strength is low, external surface hardness low (183HB).The person forms multilayer that the post of living is the composite steel tube, the basic interface of layer, bond strength be low, easily peel off, and case hardness is low, is afraid of that big gun collapses, and the lighter causes post prop drawing alive slow, severe one live post not prop drawing, pillar reveal, can enter the overhaul phase very soon.
Summary of the invention
In order to address the above problem, the invention provides a kind of mine individual hydraulic prop, by outside the post of living, by the syndeton cover sleeve being set, improving the live performance of post, the application life of prolongation hydraulic prop.
To achieve these goals, the present invention adopts following technical scheme:
A kind of mine individual hydraulic prop, comprise oil cylinder, post alive, sleeve, top cover, base, triple-use valve, handle body, described sleeve set is on the post of living, the two ends of oil cylinder are respectively installed with base and handle body, be provided with installation portion on the described post alive, be provided with the connecting portion that cooperates with the installation portion setting-in on the sleeve.
Adopt the present invention of technique scheme compared with prior art, be provided with installation portion on the post alive, be provided with the connecting portion that cooperates with the installation portion setting-in on the sleeve, the structure that this mutual embedding cooperates, can strengthen the bond strength between post alive and sleeve, the use that prolongs hydraulic prop has the life-span, reduces the maintenance probability.
Preferred version of the present invention is: described installation portion and sleeve connecting portion be indentation respectively.
Described sleeve set is on the top of living post.
Described sleeve bottom arranges spacing ring; Between lower cartridge and the post alive sealing ring is set.
Described spacing ring below suit snap ring, described snap ring limits moving axially of spacing ring.
The valve bonnet assembly is housed on the described triple-use valve.
Described sleeve is the stainless steel sleeve.
Described stainless steel sleeve tube outer surface arranges hardened layer.
Described base sheath is contained in the oil cylinder bottom, and closure plate is equipped with in the oil cylinder bottom, and the installing hole of closure plate is equipped with lower shutoff, an end of the affixed back-moving spring of lower shutoff, and the other end of back-moving spring is fixed on the oil cylinder upper inside wall.
Hole centered by the described installing hole.
Description of drawings
Fig. 1 is live in the prior art post and sleeve connection structure schematic diagram.
Fig. 2 is the structural representation of an embodiment of the present invention.
Fig. 3 is that the A of Fig. 2 is to view.
Fig. 4 is the enlarged drawing of the B section among Fig. 2.
Fig. 5 is the C section enlarged drawing among Fig. 1.
The specific embodiment
The present invention will be further described below in conjunction with accompanying drawing.
With reference to Fig. 1 and accompanying drawing 5, be depicted as live in the prior art post and sleeve connection structure schematic diagram, wherein, post alive 31 outsides have been set with stainless steel sleeve 32, post 31 lower ends are provided with spacing ring 33 living, in order to improve stainless steel sleeve 32 and post 31 bond strengths of living, coated with adhesive between stainless steel sleeve 32 and work post 31 is such as polyurethane adhesive etc.Although this technical scheme has also been protected post 31 alive by adding stainless steel sleeve 32, bond strength is low between stainless steel sleeve 32 and the post 31 alive, easily causes in use to come off, and has reduced to a great extent the application life of hydraulic prop.
The concrete structure of the present embodiment is with reference to shown in accompanying drawing 2, accompanying drawing 3 and the accompanying drawing 4; Accompanying drawing 2 is to accompanying drawing 4: base 1, lower shutoff 2, closure plate 3, the first guide ring 4, oil cylinder 5, snap ring 6, live post 7, sealing ring 8, spacing ring 9, sleeve 10, triple-use valve 11, valve bonnet assembly 12, back-moving spring 13, handle body 14, three linear sealings 15, the second guide ring 16, upper shutoff 17, elastic cylindrical pin 18, top cover 19, connecting portion 101, installation portion 71.
The lower end of oil cylinder 5 is provided with base 1, and base 1 is fixedly connected with oil cylinder 5 by straight pin.Oil cylinder 5 lower ends arrange fixing closure plate 3, closure plate 3 can be fixing by mode and the oil cylinder 5 of welding, the interstitial hole of closure plate 3 is by lower shutoff 2 sealings, in order to guarantee sealing effectiveness and installation strength, the multidiameter shape is adopted in lower shutoff 2, and the periphery at axle arranges sealing ring, be provided with in the lower shutoff 2 can free radial rotary spring carrier arm so that mount back-moving spring 13; Triple-use valve 11 has been installed on the oil cylinder 5, on triple-use valve 11 housings bearing pin is housed, one end of bearing pin and valve bonnet assembly 12 is hinged, the other end of valve bonnet assembly 12 is the left valve cylinder sealing of triple-use valve 11, can effectively avoid in the Minepit environment dirt such as coal dust to pollute triple-use valve and cause its malfunctioning and then cause pillar to reveal phenomenon.
The post 7 of living is set in the oil cylinder 5, and shutoff 17 sealings are used in the upper end of the post 7 of living, and the outside on post 7 tops of living is fixing is set with sleeve 10, and sleeve 10 is being lived between post 7 and the oil cylinder 5.Also be provided with spring carrier arm in the upper shutoff 17, the spring carrier arm in lower shutoff 2 mounts back-moving spring 13, and the upper end of the post 7 of living also is provided with top cover 19, and top cover 19 is fixed together with the post 7 of living by three or a plurality of elastic cylindrical pin 18.
For make mine individual hydraulic prop when work working media do not reveal, be provided with three linear sealings 15 in the upper end of oil cylinder 5, interior when mobile at oil cylinder 5 when the post 7 of living, the working media leakage has been avoided in three linear sealings 15 and sleeve 10 close contacts.The upper end of oil cylinder 5 also is provided with the second guide ring 16, works in coordination with the first guide ring 4 and plays better guide effect.The upper end of oil cylinder 5 also is provided with handle body 14, makes things convenient for the use of hydraulic prop.
Fig. 4 is the B section enlarged drawing of Fig. 2, sleeve 10 is between oil cylinder 5 and post 7 alive, the inner surface of sleeve 10 is provided with connecting portion 101, the external surface of post 7 alive is provided with installation portion 71, installation portion 71 and 101 embedded cooperations of connecting portion: the lug boss on the connecting portion 101 embeds the recess on the installation portion 71, and the lug boss on the installation portion 71 embeds the recess of connecting portion 101; Equal indentation is divided in the longitudinal section of connecting portion 101 and installation portion 71, is interspersed with matching, and the post 7 of living after live post 7 and the sleeve 10 stressed resiliences does not separate with sleeve 10.The lower end of sleeve 10 is provided with spacing ring 9, and spacing ring 9 adopts encircles spacing ring, makes sleeve 10 lower ends and lives 7 centripetal force that form hoop of post; In order to make spacing ring 9 better be fixed on sleeve 10 lower ends, live and be provided with snap ring 6 between post 7 and the spacing ring 9, for making the good sealing of sleeve 10 lower ends and the post 7 of living be provided with sealing ring 8, sealing ring 8 can arrange one or more, can adopt the O RunddichtringO, in the present embodiment, be provided with two O RunddichtringOs 8.
Post alive 7 outsides of the present embodiment overlap sleeved 10 by syndeton; can effectively protect post 7 alive; prevent that big gun from collapsing the injury to mine individual hydraulic prop; sleeve 10 has anticorrosion, wear-resisting effect; the application life of hydraulic prop can be greatly prolonged, and environment pollution can be do not caused during fabrication.
In other embodiments, connecting portion and installation portion can protrude or recessed sleeve interior surface and the outer surface of column of living accordingly, as long as realize cooperating of connecting portion and installation portion.The longitudinal section of connecting portion and installation portion also can be other shapes, the a plurality of triangles that for example vertically distribute, rectangle, circle or oval etc., consider sleeve and the assembling of the post of living, connecting portion and installation portion need to arrange fillet, so that the suit of sleeve and the post of living.
The material of sleeve can be stainless steel, also can select other metals, alloy material or plastics etc., can make it reach hardness requirement by modes such as carburizing, nitriding and coating and get final product.
The above only is the preferred embodiments of the present invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes manual of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all be considered as in the scope of patent protection of the present invention.
Claims (10)
1. mine individual hydraulic prop, comprise oil cylinder, post alive, sleeve, top cover, base, triple-use valve, handle body, described sleeve set is on the post of living, the two ends of oil cylinder are respectively installed with base and handle body, it is characterized in that: be provided with installation portion on the described post alive, be provided with the connecting portion that cooperates with the installation portion setting-in on the sleeve.
2. mine individual hydraulic prop according to claim 1 is characterized in that: described installation portion and sleeve connecting portion difference indentation.
3. mine individual hydraulic prop according to claim 1 and 2 is characterized in that: described sleeve set is on the top of living post.
4. mine individual hydraulic prop according to claim 1, it is characterized in that: described sleeve bottom arranges spacing ring; Between lower cartridge and the post alive sealing ring is set.
5. mine individual hydraulic prop according to claim 5 is characterized in that: described spacing ring below suit snap ring.
6. mine individual hydraulic prop according to claim 1 is characterized in that: the valve bonnet assembly is housed on the described triple-use valve.
7. mine individual hydraulic prop according to claim 1, it is characterized in that: described sleeve is the stainless steel sleeve.
8. according to claim 1 or 7 described mine individual hydraulic props, it is characterized in that: described stainless steel sleeve tube outer surface arranges hardened layer.
9. mine individual hydraulic prop according to claim 1, it is characterized in that: described base sheath is contained in the oil cylinder bottom, and closure plate is equipped with in the oil cylinder bottom, and the installing hole of closure plate is equipped with lower shutoff, one end of the affixed back-moving spring of lower shutoff, the other end of back-moving spring is fixed on the oil cylinder upper inside wall.
10. mine individual hydraulic prop according to claim 9 is characterized in that: hole centered by the described installing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310010644.4A CN103046938B (en) | 2013-01-12 | 2013-01-12 | Mine individual hydraulic prop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310010644.4A CN103046938B (en) | 2013-01-12 | 2013-01-12 | Mine individual hydraulic prop |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103046938A true CN103046938A (en) | 2013-04-17 |
| CN103046938B CN103046938B (en) | 2015-11-04 |
Family
ID=48059764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310010644.4A Expired - Fee Related CN103046938B (en) | 2013-01-12 | 2013-01-12 | Mine individual hydraulic prop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103046938B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615268A (en) * | 2013-12-17 | 2014-03-05 | 中国矿业大学 | Mine piston type clean water hydraulic prop |
| CN111648799A (en) * | 2020-06-30 | 2020-09-11 | 陕西陕煤韩城矿业有限公司 | Two-piece single hydraulic prop |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU1005483A (en) * | 1982-01-21 | 1983-07-28 | Dowty Mining Equipment Ltd. | Sheathed multi-hose end fitting |
| US5026218A (en) * | 1989-11-16 | 1991-06-25 | Joy Technologies Inc. | Temporary roof support cylinder |
| CN1488838A (en) * | 2003-08-20 | 2004-04-14 | 江阴市矿山器材厂 | Mining unity hydraulic prop |
| CN201043470Y (en) * | 2007-05-25 | 2008-04-02 | 杨学恒 | Non-soldering double-oil cylinder suspending type mining mono-block hydraulic prop |
| CN201915974U (en) * | 2010-12-31 | 2011-08-03 | 杨学恒 | Triple-proof mine single hydraulic prop |
| CN201966341U (en) * | 2011-01-11 | 2011-09-07 | 郑州煤矿机械集团股份有限公司 | Cable connecting joints between hydraulic support controller brackets |
| CN202325561U (en) * | 2011-12-01 | 2012-07-11 | 梁红丽 | Mining single hydraulic supporting column with suspension type plunger |
-
2013
- 2013-01-12 CN CN201310010644.4A patent/CN103046938B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU1005483A (en) * | 1982-01-21 | 1983-07-28 | Dowty Mining Equipment Ltd. | Sheathed multi-hose end fitting |
| US5026218A (en) * | 1989-11-16 | 1991-06-25 | Joy Technologies Inc. | Temporary roof support cylinder |
| CN1488838A (en) * | 2003-08-20 | 2004-04-14 | 江阴市矿山器材厂 | Mining unity hydraulic prop |
| CN201043470Y (en) * | 2007-05-25 | 2008-04-02 | 杨学恒 | Non-soldering double-oil cylinder suspending type mining mono-block hydraulic prop |
| CN201915974U (en) * | 2010-12-31 | 2011-08-03 | 杨学恒 | Triple-proof mine single hydraulic prop |
| CN201966341U (en) * | 2011-01-11 | 2011-09-07 | 郑州煤矿机械集团股份有限公司 | Cable connecting joints between hydraulic support controller brackets |
| CN202325561U (en) * | 2011-12-01 | 2012-07-11 | 梁红丽 | Mining single hydraulic supporting column with suspension type plunger |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615268A (en) * | 2013-12-17 | 2014-03-05 | 中国矿业大学 | Mine piston type clean water hydraulic prop |
| CN103615268B (en) * | 2013-12-17 | 2016-06-15 | 中国矿业大学 | A kind of mine piston type clean water hydraulic prop |
| CN111648799A (en) * | 2020-06-30 | 2020-09-11 | 陕西陕煤韩城矿业有限公司 | Two-piece single hydraulic prop |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103046938B (en) | 2015-11-04 |
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Granted publication date: 20151104 Termination date: 20210112 |
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| CF01 | Termination of patent right due to non-payment of annual fee |