CN202451195U - Multi-supporting-point well type temporary support for coal mine underground tunnel excavation - Google Patents
Multi-supporting-point well type temporary support for coal mine underground tunnel excavation Download PDFInfo
- Publication number
- CN202451195U CN202451195U CN 201220057519 CN201220057519U CN202451195U CN 202451195 U CN202451195 U CN 202451195U CN 201220057519 CN201220057519 CN 201220057519 CN 201220057519 U CN201220057519 U CN 201220057519U CN 202451195 U CN202451195 U CN 202451195U
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- supporting
- support
- coal mine
- tunnel excavation
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Abstract
The utility model particularly relates to a multi-supporting-point well type temporary support for coal mine underground tunnel excavation, which solves the problem of safety accidents caused by roof caving due to unscientific support, low automation degree, complex support, high labor intensity, low efficiency and low adaptability in the conventional support device. The multi-supporting-point well type temporary support for coal mine underground tunnel excavation comprises two parallel transverse beams and two parallel longitudinal beams, wherein the transverse beams and the longitudinal beams are arranged vertically and staggeredly; the planes of the transverse beams and the longitudinal beams are disturbed in an up-and-down mode and in parallel; the end parts of the two transverse beams are hinged with supporting arms inclined downwards; telescopic oil cylinders connected with the longitudinal beams are arranged on the lower parts of the supporting arms; and supporting oil cylinders are arranged at the intersections of the transverse beams and the longitudinal beams. The multi-supporting-point well type temporary support for coal mine underground tunnel excavation has reasonable and reliable structural design, greatly improves support timeliness and production safety, realizes effective combination of steel rocks, and has the advantages of reasonable stress, high applicability, safety, reliability, maneuverability, flexibility and high automation degree.
Description
Technical field
The utility model relates to suspension device, is specially many fulcrums of tunnelling well formula falsework under a kind of coal mine.
Background technology
The form of temporary lining at present mainly contains: 1, individual prop+cap; 2, monomer+hinged girder+plate-girder; 3, the long girder steel forestope of suspension; 4, console mode is from moving falsework; 5, multiple temporary lining form such as capplce monorail crane self-advancing support.Just mode of occupation is seen at present, all has certain problem.The subject matter that the first three supporting exists is: supporting is untimely, the supporting area is little, carry out down on the sky top that the supporting operation is dangerous, prop heaviness; Man-hours requirement is many during supporting, personnel are many, labour intensity is big, inconvenient; Be handwork fully, automaticity is low.The 4th kind of supporting automaticity is high, and support force is also bigger, but requirement like a fish out of water, after explosion was accomplished, spoil was trickled down whole base plate, and support can't get into empty top zone at all, can't realize immediate support.The 5th kind of supporting theory is fine, but only is applicable to the shed ding support tunnel, because the out-of-flatness of back; The influence of natural causes such as capplce out-of-flatness, track is installed time-consuming, adds track and receives blasting impact easily and deformation failure; And support is semi girder, and force structure is unreasonable, and support force is little; Problems such as the easy unstability of structure so it is ripe to use at present that is that all right, can not effectively be applied.
Summary of the invention
The utility model for solve existing suspension device exist supporting not science, automaticity is low, supporting is loaded down with trivial details, labour intensity is big, inefficiency; Bad adaptability is prone to cause that roof collapse causes the problem of security incident, and many fulcrums of tunnelling well formula falsework under a kind of coal mine is provided.
The utility model is to adopt following technical scheme to realize: many fulcrums of tunnelling well formula falsework under the coal mine; Comprise two crossbeams that are parallel to each other and two longerons that are crisscross arranged and are parallel to each other with beam vertical; The upper and lower distribution in plane at crossbeam and longeron place and being parallel to each other; The end of two crossbeams all is hinged with downward-sloping support arm, and the bottom of support arm is equipped with the telescopic oil cylinder that is connected with longeron, and the intervening portion place between crossbeam and the longeron is equipped with support cylinder.
During operation, falsework is contracted in the transport vehicle, during work, in transport vehicle, stretches out, and arrives assigned address, freely stretchs out 4 support arms, and the telescopic oil cylinder operation is supported on support arm on the sidewall of tunnel; Support cylinder operation simultaneously to empty end face, forms acnemia Jing Xingliang with the crossbeam top; The top board lateral wall is carried out combined supporting, and roof pressure is delivered to longeron through support cylinder, and longeron is given support arm with loading transfer; Support arm is bearing load on the one hand; Under the effect of load, tighten on the one hand, overcome existing suspension device exist supporting not science, automaticity is low, supporting is loaded down with trivial details, labour intensity is big, inefficiency, bad adaptability is prone to cause that roof collapse causes the problem of security incident.
The crossbeam lower surface is provided with protective screening, has protected broken spoil and has fallen at the position of workman's work.
The utility model reasonable in design is reliable; The promptness of supporting and the safety of production have been improved greatly; And realized effective combination of steel rock, and given full play to the performance advantage of material separately, reached the effect of combination supporting; Relaxed the contradiction of the ubiquitous debalance of preparation and winning work in present colliery, had that reasonable stress, applicability are good, safe and reliable, maneuverability and a high advantage of automaticity.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure: 1-crossbeam, 2-longeron, 3-support arm, 4-telescopic oil cylinder, 5-support cylinder.
The specific embodiment
Many fulcrums of tunnelling well formula falsework under the coal mine; Comprise two crossbeams that are parallel to each other 1 and two and crossbeam 1 vertical interlaced setting and the longeron 2 that is parallel to each other; The upper and lower distribution in plane at crossbeam 1 and longeron 2 places and being parallel to each other; The end of two crossbeams 1 all is hinged with downward-sloping support arm 3, and the bottom of support arm 3 is equipped with the telescopic oil cylinder 4 that is connected with longeron 2, and the intervening portion place between crossbeam 1 and the longeron 2 is equipped with support cylinder 5.Crossbeam 1 lower surface is provided with protective screening.
In the practical implementation process, sensor is housed on the falsework, can in time reports to the police; And the buffer protection device that anti-explosion is impacted is housed on the falsework, prevents that blasting broken stone from damaging equipment.Telescopic oil cylinder 4 adopts compressed air or hydraulic oil with support cylinder 5.Preferentially select compressed air for use, alleviated the weight of running body.When air pressure can not meet the demands, select hydraulic oil again for use.
Claims (2)
1. many fulcrums of tunnelling well formula falsework under the coal mine; It is characterized in that: comprise two crossbeams that are parallel to each other (1) and two and crossbeam (1) vertical interlaced setting and the longeron (2) that is parallel to each other; The upper and lower distribution in plane at crossbeam (1) and longeron (2) place and being parallel to each other; The end of two crossbeams (1) all is hinged with downward-sloping support arm (3); The bottom of support arm (3) is equipped with the telescopic oil cylinder (4) that is connected with longeron (2), and the intervening portion place between crossbeam (1) and the longeron (2) is equipped with support cylinder (5).
2. many fulcrums of tunnelling well formula falsework under the coal mine according to claim 1, it is characterized in that: crossbeam (1) lower surface is provided with protective screening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220057519 CN202451195U (en) | 2012-02-22 | 2012-02-22 | Multi-supporting-point well type temporary support for coal mine underground tunnel excavation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220057519 CN202451195U (en) | 2012-02-22 | 2012-02-22 | Multi-supporting-point well type temporary support for coal mine underground tunnel excavation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202451195U true CN202451195U (en) | 2012-09-26 |
Family
ID=46867064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220057519 Expired - Fee Related CN202451195U (en) | 2012-02-22 | 2012-02-22 | Multi-supporting-point well type temporary support for coal mine underground tunnel excavation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202451195U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965342A (en) * | 2017-12-27 | 2018-04-27 | 中国煤炭科工集团太原研究院有限公司 | Arched tunnel driving moves into covering device certainly without support repeatedly |
-
2012
- 2012-02-22 CN CN 201220057519 patent/CN202451195U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965342A (en) * | 2017-12-27 | 2018-04-27 | 中国煤炭科工集团太原研究院有限公司 | Arched tunnel driving moves into covering device certainly without support repeatedly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20130222 |