CN105221173A - Fully-mechanized mining working two ends crosses freeboard section supporting method - Google Patents
Fully-mechanized mining working two ends crosses freeboard section supporting method Download PDFInfo
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- CN105221173A CN105221173A CN201510643461.5A CN201510643461A CN105221173A CN 105221173 A CN105221173 A CN 105221173A CN 201510643461 A CN201510643461 A CN 201510643461A CN 105221173 A CN105221173 A CN 105221173A
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Abstract
The present invention relates to a kind of timbering technology in coal mine, for solving the support issues at Local topography tunnel, air entering and returning lane freeboard section, providing a kind of fully-mechanized mining working two ends to cross freeboard section supporting method.When tunneling to freeboard section, first hydraulic support is down to minimum, hydraulically extensible suspension device is mounted to the top of hydraulic support, fluid pressure type suspension device is connected to support hand neighbouring control device by fluid pressure line, hydraulic power source is the pumping plant utilizing auxiliary work face, accomplish to operate safely and fast, flexibly, safe and efficient, the convenient fully mechanical method quickly through freeboard section, convenient operation, cost-saving, personnel when frame canopy is constructed that avoid beat the high strength of grillage above the capplce of 2.5 meters high, work high above the ground method, reduce the timber beating grillage and frame canopy simultaneously, frame canopy cost.And do not need to increase power source and electrical control equipment.And under the prerequisite not upgrading to superelevation support, the task that a set of equipment can not complete to realize original support can be installed additional.
Description
Technical field
The present invention relates to a kind of timbering technology in coal mine, be specially a kind of fully-mechanized mining working two ends and cross freeboard section supporting method.
Background technology
As schematically shown in Figure 1, in coal-face exploitation process, Local topography tunnel, air entering and returning lane superelevation reaches 40 meters sometimes, tunnel maximum height reaches about 4.0 meters, need beat grillage at capplce hook jacking row roof timbering at two crossheading freeboard section frame canopies in advance, labour intensity be large, uses support material many and cannot multiplexing support material after support, and grillage work high above the ground is played in existence on capplce, safety management difficulty is large.Show as: labour intensity is large, cost is large, safety management difficulty is large.
Summary of the invention
The present invention, in order to solve the support issues at Local topography tunnel, air entering and returning lane freeboard section, provides a kind of fully-mechanized mining working two ends and crosses freeboard section supporting method.
Technical scheme of the present invention is, a kind of fully-mechanized mining working two ends crosses freeboard section supporting method, when tunneling to freeboard section, first hydraulic support is down to minimum, then hydraulically extensible suspension device is mounted to the top of hydraulic support, and fluid pressure type suspension device is connected to support hand neighbouring control device by fluid pressure line, hydraulic power source is the pumping plant utilizing auxiliary work face
Hydraulically extensible suspension device is formed primarily of flip beam, hoist cylinder, back timber, overturning oil cylinder, support cylinder; By the lifting controlling the supporting of liquid telescopic supporting device of primer fluid potential source, come quickly through freeboard section, when being about to complete freeboard section, the fluid pressure type suspension device of cradle top being carried out reduction and was contracted to cradle top or dismounting, recovered former standoff normal working depth.
Wherein back timber, front support cylinder are crawled at cradle top when rounding state, be installed with on overturning oil cylinder, hoist cylinder cylinder barrel be installed with a pair support cylinder in flip beam bottom.Operation overturning oil cylinder and support cylinder control valve, make flip beam turn to support front, operation hoist cylinder, promotes back timber and go contact back to play support action, reach support and connect top in time fast then quickly through freeboard section.
The method of the invention is not only simple to operate laborsaving, and convenient operation is cost-saving, and can safe and efficient, pass through freeboard section easily.Personnel when frame canopy is constructed that avoid beat high strength, the work high above the ground method of grillage above the capplce of 2.5 meters high, reduce timber, the frame canopy cost of beating grillage and frame canopy simultaneously.And do not need to increase power source and electrical control equipment.
Compared with prior art, the invention provides one to improve one's methods, often freeboard section is run at air entering and returning two crossheading, two ends adopts 3.5m and above monomer column to carry out supporting in advance, when being pushed into freeboard section, at cradle top, U-type groove steel socket be installed and install base additional, base is installed fluid pressure type suspension device heightening bracket structure heights of roofs, utilize the telescopic feature of fluid pressure type suspension device, and then it is maximum by height to realize the flexible convenient heightening bracket of mechanical type, thus grillage is beaten in saving, the timber that frame canopy needs, the costs such as iron canopy, and accomplish to operate safely and fast, realize flexibly, the convenient fully mechanical method quickly through freeboard section, convenient operation, cost-saving, and can under the prerequisite not upgrading to superelevation support, install the task that a set of equipment can not complete to realize original support additional.
Accompanying drawing explanation
The existing support pattern structural representation in Fig. 1 position; Fig. 2 is support pattern structural representation of the present invention; Fig. 3 is hydraulic support stand structural representation; Fig. 4 is structure chart after hydraulic support shrinks; Fig. 5 is structure chart after hydraulic support rises.
In figure: 1-capplce, 2-monomer column, 3-support grillage, 4-freeboard section, 5-back timber, 6-hoist cylinder, 7-support cylinder, 8-flip beam, 9-overturning oil cylinder, 10-supporting seat.
Detailed description of the invention
As Fig. 2,3,4,5 illustrate, a kind of fully-mechanized mining working two ends crosses freeboard section supporting method, when tunneling to freeboard section 4, first hydraulic support 11 is down to minimum, then hydraulically extensible suspension device is mounted to the top of hydraulic support, and fluid pressure type suspension device is connected to support hand neighbouring control device by fluid pressure line, hydraulic power source is the pumping plant utilizing auxiliary work face, and hydraulically extensible suspension device is formed primarily of flip beam 8, hoist cylinder 6, back timber 5, overturning oil cylinder, support cylinder 7; First supporting seat 10 is arranged on the top board of hydraulic support 11, on supporting seat 10, overturning oil cylinder 9 is installed again, hydraulic support 11 also installs flip beam 8, overturning oil cylinder 9 connects flip beam 8, hoist cylinder 6 is installed above flip beam 8, support cylinder 7 is installed in side, and support cylinder 7 and hoist cylinder 6 common support back timber 5.
By the lifting controlling the supporting of liquid telescopic supporting device of primer fluid potential source, come quickly through freeboard section, when being about to complete freeboard section, the fluid pressure type suspension device of cradle top being carried out reduction and was contracted to cradle top or dismounting, recovered former standoff normal working depth.
Described supporting seat 10, hoist cylinder 6, support cylinder 7, flip beam 8, overturning oil cylinder 9 are all that bilateral is arranged, to ensure the balance that back timber 5 is elevated.
Wherein back timber, support cylinder are crawled when rounding state at hydraulic support top, operation overturning oil cylinder and support cylinder control valve, flip beam is made to turn to support front, operation hoist cylinder, promoting back timber goes contact back to play support action, reaches support and connects top in time fast then quickly through freeboard section.
When tunneling to freeboard section, first support is down to minimum, then hydraulically extensible system and device is mounted to the top of support, equipment is fixed on support by the U-type groove steel on both sides, and by round steel by the channel-section steel fixation of both sides or utilize the circular hole on support that left and right flip beam is firmly rack-mount, and fluid pressure type suspension device is connected to support hand neighbouring control device by fluid pressure line, hydraulic power source is the pumping plant utilizing auxiliary work face, thus do not need to increase power source and electrical control equipment
Hydraulically extensible system and device is formed primarily of flip beam (left and right), hoist cylinder (left and right) and back timber, overturning oil cylinder, support cylinder.Wherein back timber, front support cylinder are crawled at cradle top when rounding state.Be installed with in flip beam bottom on overturning oil cylinder, hoist cylinder cylinder barrel and a pair support cylinder is installed.Operation overturning oil cylinder and support cylinder control valve, make flip beam turn to support front, operation hoist cylinder, promotes back timber and go contact back to play support action, reach support and connect top in time fast then quickly through freeboard section, as shown in Figure 2.
Claims (2)
1. a fully-mechanized mining working two ends crosses freeboard section supporting method, it is characterized in that when tunneling to freeboard section 4, first hydraulic support 11 is down to minimum, then hydraulically extensible suspension device is mounted to the top of hydraulic support, and fluid pressure type suspension device is connected to support hand neighbouring control device by fluid pressure line, hydraulic power source is the pumping plant utilizing auxiliary work face, by the lifting controlling the supporting of liquid telescopic supporting device of primer fluid potential source, come quickly through freeboard section, when being about to complete freeboard section, the fluid pressure type suspension device of cradle top is carried out reduction and is contracted to cradle top or dismounting, recover former standoff normal working depth,
Wherein back timber, support cylinder are crawled when rounding state at hydraulic support top, operation overturning oil cylinder and support cylinder control valve, flip beam is made to turn to support front, operation hoist cylinder, promoting back timber goes contact back to play support action, reaches support and connects top in time fast then quickly through freeboard section.
2. fully-mechanized mining working two ends according to claim 1 crosses freeboard section supporting method, it is characterized in that, the hydraulically extensible suspension device used in claim 1 comprises flip beam 8, hoist cylinder 6, back timber 5, overturning oil cylinder, support cylinder 7; First supporting seat 10 is arranged on the top board of hydraulic support 11, on supporting seat 10, overturning oil cylinder 9 is installed again, hydraulic support 11 also installs flip beam 8, overturning oil cylinder 9 connects flip beam 8, above flip beam 8, install hoist cylinder 6, support cylinder 7 is installed in side, and support cylinder 7 and hoist cylinder 6 common support back timber 5, described supporting seat 10, hoist cylinder 6, support cylinder 7, flip beam 8, overturning oil cylinder 9 are all that bilateral is arranged, to ensure the balance that back timber 5 is elevated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510643461.5A CN105221173A (en) | 2015-10-08 | 2015-10-08 | Fully-mechanized mining working two ends crosses freeboard section supporting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510643461.5A CN105221173A (en) | 2015-10-08 | 2015-10-08 | Fully-mechanized mining working two ends crosses freeboard section supporting method |
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| CN105221173A true CN105221173A (en) | 2016-01-06 |
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| CN201510643461.5A Pending CN105221173A (en) | 2015-10-08 | 2015-10-08 | Fully-mechanized mining working two ends crosses freeboard section supporting method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898392A (en) * | 2021-10-14 | 2022-01-07 | 中国煤炭科工集团太原研究院有限公司 | Super high tunnel keeps off cash support device |
| CN114278354A (en) * | 2022-01-14 | 2022-04-05 | 西龙 | Coal mine safety protection device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1061071A (en) * | 1964-03-20 | 1967-03-08 | Gullick Ltd | Improvements in or relating to mine roof supports |
| CN101333931A (en) * | 2008-07-31 | 2008-12-31 | 中国矿业大学 | Multiple layer hyperstatic hydraulic support |
| CN102587945A (en) * | 2012-03-09 | 2012-07-18 | 山西大同大学 | Hydraulic walking multi-level temporary supporting equipment for advancement of tunnel |
| CN202946177U (en) * | 2012-10-25 | 2013-05-22 | 高宇 | Improved hydraulic support used for coal mines |
| CN105134271A (en) * | 2015-08-04 | 2015-12-09 | 山西晋城无烟煤矿业集团有限责任公司 | Fully mechanized mining working face two-end excess elevation segment hydraulic supporting device |
-
2015
- 2015-10-08 CN CN201510643461.5A patent/CN105221173A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1061071A (en) * | 1964-03-20 | 1967-03-08 | Gullick Ltd | Improvements in or relating to mine roof supports |
| CN101333931A (en) * | 2008-07-31 | 2008-12-31 | 中国矿业大学 | Multiple layer hyperstatic hydraulic support |
| CN102587945A (en) * | 2012-03-09 | 2012-07-18 | 山西大同大学 | Hydraulic walking multi-level temporary supporting equipment for advancement of tunnel |
| CN202946177U (en) * | 2012-10-25 | 2013-05-22 | 高宇 | Improved hydraulic support used for coal mines |
| CN105134271A (en) * | 2015-08-04 | 2015-12-09 | 山西晋城无烟煤矿业集团有限责任公司 | Fully mechanized mining working face two-end excess elevation segment hydraulic supporting device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898392A (en) * | 2021-10-14 | 2022-01-07 | 中国煤炭科工集团太原研究院有限公司 | Super high tunnel keeps off cash support device |
| CN114278354A (en) * | 2022-01-14 | 2022-04-05 | 西龙 | Coal mine safety protection device |
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Application publication date: 20160106 |
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