CN110145346A - High working face hydraulic support shield top side protecting mechanism - Google Patents
High working face hydraulic support shield top side protecting mechanism Download PDFInfo
- Publication number
- CN110145346A CN110145346A CN201910497253.7A CN201910497253A CN110145346A CN 110145346 A CN110145346 A CN 110145346A CN 201910497253 A CN201910497253 A CN 201910497253A CN 110145346 A CN110145346 A CN 110145346A
- Authority
- CN
- China
- Prior art keywords
- shield
- wall supporting
- top beam
- working face
- high working
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 28
- 238000005065 mining Methods 0.000 abstract description 8
- 239000003245 coal Substances 0.000 description 10
- 238000007665 sagging Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/10—Details of mine caps for engaging the tops of pit-props, with or without retaining-plates; Retaining-plates
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a kind of high working face hydraulic supports to protect top side protecting mechanism, including top beam, level-one wall supporting jack, small rod, level-one face guard, secondary protecting side plate, secondary protecting side jack, and the front end of top beam is equipped with shield ejection device.Shield ejection device includes the shield top plate of wedge structure, is welded and fixed together with top beam or is fitted together by pin shaft and top beam.Effectively shield top can be realized while wall supporting, prevent roof fall.And wall supporting Hu Ding mechanism not will cause the increase of beam body thickness, not influence mining height.Overall structure is simple, and weight support frame increases less.
Description
Technical field
The present invention relates to a kind of coal mine hydraulic supporting more particularly to a kind of high working face hydraulic support shield top side protecting mechanisms.
Background technique
Coal wall caving, roof fall are one of the citation forms that fully-mechanized mining working mine pressure shows.Coal seam thickness is bigger, and mine pressure shows
It is more violent.In large-mining-height working surface, the management to wall caving and roof fall is the focal point of fully-mechanized mining working daily management.
The work of anti-wall caving and anti-roof fall is generally completed by the hydraulic support of one of fully-mechanized mining equipment.Generally in hydraulic support
The front end setting wall supporting device of top beam carrys out anti-wall caving, and wall supporting device is made of face guard and wall supporting jack and small rod.In
Single-stage side protecting mechanism is generally arranged in high seam, and two machine side protecting mechanisms are generally arranged in high seam, and 7 meters or more super high seams are generally arranged
Three-stage side protecting mechanism.Wall supporting device with small rod may be reversed 180 °, play wall supporting when vertical with top plate, parallel with top plate
When from action retaining the top.It may also set up telescopic device and carry out anti-top plate roof fall.Telescopic device is made of extensible canopy and telescopic jack.It adopts
Extensible canopy is withdrawn when coal machine cut coaly state, and beam-ends unsupported back span increases after coalcutter coal cutting, at this point, extensible canopy can be stretched out,
To top plate gib, top plate roof fall is prevented.
The prior art one, whole top beam+secondary protecting side mechanism:
As shown in Figure 1, add secondary protecting side mechanism for a kind of whole top beam, when normal wall supporting, secondary protecting side plate is sagging hangs down with top plate
Directly, face guard is parallel with top plate when normal shield top, and face guard is recoverable under top beam cover board when not used.The rotation angle of face guard
It can reach 180 °.
The shortcomings that prior art one:
Secondary protecting side plate is sagging vertical with top plate when normal wall supporting, is bonded with coal wall.Level-one face guard and coal wall journey are general
45 ° of angles.Above level-one face guard still some space can not supporting, if top plate is relatively more broken at this time, it will emit
Top.
The prior art two, integral top beam built-in flexible beam+secondary protecting side mechanism:
As shown in Fig. 2, add secondary protecting side mechanism for a kind of integral top beam built-in flexible beam, secondary protecting side plate when normal wall supporting
Sagging vertical with top plate, level-one face guard and coal wall be at an angle at this time.Extensible canopy stretches out when normal shield top, pastes with top plate
It closes.
The shortcomings that prior art two:
Integral top beam built-in flexible beam causes beam body thickness to increase, influences mining height.Integral top beam built-in flexible beam, is caused
It is more that bracket integrally increases weight.
Summary of the invention
The object of the present invention is to provide a kind of high working face hydraulic supports to protect top side protecting mechanism.
The purpose of the present invention is what is be achieved through the following technical solutions:
High working face hydraulic support shield top side protecting mechanism of the invention, including top beam, level-one wall supporting jack, small rod, one
Grade face guard, secondary protecting side plate, secondary protecting side jack, the front end of the top beam are equipped with shield ejection device.
As seen from the above technical solution provided by the invention, high working face hydraulic support shield provided in an embodiment of the present invention
Side protecting mechanism is pushed up, effectively shield top can be realized while wall supporting, prevents roof fall.And wall supporting Hu Ding mechanism not will cause beam
The increase of body thickness, does not influence mining height.Overall structure is simple, and weight support frame increases less.
Detailed description of the invention
Fig. 1 is the high working face hydraulic support shield top side protecting mechanism structural schematic diagram of the prior art one.
Fig. 2 is the high working face hydraulic support shield top side protecting mechanism structural schematic diagram of the prior art two.
Fig. 3 is high working face hydraulic support provided in an embodiment of the present invention shield top side protecting mechanism structural schematic diagram.
In figure:
1, top beam, 2, level-one wall supporting jack, 3, small rod, 4, level-one face guard, 5, secondary protecting side plate, 6, secondary protecting side
Jack, 7, telescopic jack, 8, extensible canopy, 9, shield ejection device.
Specific embodiment
The embodiment of the present invention will be described in further detail below.What is be not described in detail in the embodiment of the present invention is interior
Appearance belongs to the prior art well known to professional and technical personnel in the field.
High working face hydraulic support shield top side protecting mechanism of the invention, preferable specific embodiment are as shown in Figure 3:
Including top beam, level-one wall supporting jack, small rod, level-one face guard, secondary protecting side plate, secondary protecting side jack,
The front end of the top beam is equipped with shield ejection device.
The shield ejection device includes the shield top plate of wedge structure, is welded and fixed together with top beam or by pin shaft and top beam
It fits together.
High working face hydraulic support shield of the invention top side protecting mechanism, has secondary protecting side plate, can effective support coal wall, prevent
There is wall caving.With shield ejection device, effectively shield top can be realized while wall supporting, prevents roof fall.Moreover, new wall supporting protects
Top mechanism not will cause the increase of beam body thickness, not influence mining height.Overall structure is simple, and weight support frame increases less.
Secondary protecting side plate is sagging vertical with top plate when normal wall supporting, and level-one face guard and coal wall be at an angle at this time.
Shield ejection device is fitted together by the shield top plate of wedge structure with pin shaft and top beam, can be used to supporting roof.
Technical solution of the present invention bring the utility model has the advantages that
While wall supporting can top plate above effective support level-one face guard, prevent the generation of wall caving and roof fall；
Wall supporting shield top mechanism structure is simple, only increases Hu Ding mechanism than the prior art one, Hu Ding mechanism weight about 200kg,
Bracket overall weight increases less；
Wall supporting Hu Ding mechanism does not increase the thickness of original set cap, does not impact to mining height.
In specific implementation, shield ejection device is arranged in top beam front end, either it is fixed, and can be movable；Shield top
Device can not only be fixed with pin shaft, but also can be welded and fixed；Ejection device is protected to be arranged in top beam front end, it can while normal wall supporting
To realize supporting roof；Shield ejection device is hingedly fixed by pin shaft, and structure is simple, detachably；Shield ejection device not will cause top beam beam
The increase of body thickness.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Within the technical scope of the present disclosure, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Subject to enclosing.
Claims (2)
1. a kind of high working face hydraulic support shield top side protecting mechanism, including top beam, level-one wall supporting jack, small rod, level-one wall supporting
Plate, secondary protecting side plate, secondary protecting side jack, which is characterized in that the front end of the top beam is equipped with shield ejection device.
2. high working face hydraulic support shield according to claim 1 top side protecting mechanism, which is characterized in that the shield ejection device packet
The shield top plate for including wedge structure, is welded and fixed together with top beam or is fitted together by pin shaft and top beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910497253.7A CN110145346A (en) | 2019-06-10 | 2019-06-10 | High working face hydraulic support shield top side protecting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910497253.7A CN110145346A (en) | 2019-06-10 | 2019-06-10 | High working face hydraulic support shield top side protecting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110145346A true CN110145346A (en) | 2019-08-20 |
Family
ID=67590806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910497253.7A Withdrawn CN110145346A (en) | 2019-06-10 | 2019-06-10 | High working face hydraulic support shield top side protecting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110145346A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101037945A (en) * | 2007-04-27 | 2007-09-19 | 郑州煤矿机械集团有限责任公司 | 6.3 meters high support covering hydraulic support |
| CN201013399Y (en) * | 2007-03-27 | 2008-01-30 | 郑州煤矿机械集团有限责任公司 | Rotary type two-stage side-protection device |
| CN201071730Y (en) * | 2007-01-30 | 2008-06-11 | 中煤北京煤矿机械有限责任公司 | Three level compound side protection mechanism |
| CN101457652A (en) * | 2008-05-13 | 2009-06-17 | 天地科技股份有限公司 | Overlarge mining height hydraulic support |
| CN101592034A (en) * | 2009-06-25 | 2009-12-02 | 中煤北京煤矿机械有限责任公司 | Super large mining height hydraulic support with super high working resistance |
| CN201474716U (en) * | 2009-08-26 | 2010-05-19 | 四川神坤装备股份有限公司 | Large mining height hydraulic bracket multilevel wall supporting mechanism |
| WO2018094657A1 (en) * | 2016-11-24 | 2018-05-31 | 安徽理工大学 | Hydraulic support for soil-like coal working face, and protection method for coal seam mining |
| CN210686023U (en) * | 2019-06-10 | 2020-06-05 | 中煤北京煤矿机械有限责任公司 | Large mining height hydraulic support top and side protection mechanism |
-
2019
- 2019-06-10 CN CN201910497253.7A patent/CN110145346A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201071730Y (en) * | 2007-01-30 | 2008-06-11 | 中煤北京煤矿机械有限责任公司 | Three level compound side protection mechanism |
| CN201013399Y (en) * | 2007-03-27 | 2008-01-30 | 郑州煤矿机械集团有限责任公司 | Rotary type two-stage side-protection device |
| CN101037945A (en) * | 2007-04-27 | 2007-09-19 | 郑州煤矿机械集团有限责任公司 | 6.3 meters high support covering hydraulic support |
| CN101457652A (en) * | 2008-05-13 | 2009-06-17 | 天地科技股份有限公司 | Overlarge mining height hydraulic support |
| CN101592034A (en) * | 2009-06-25 | 2009-12-02 | 中煤北京煤矿机械有限责任公司 | Super large mining height hydraulic support with super high working resistance |
| CN201474716U (en) * | 2009-08-26 | 2010-05-19 | 四川神坤装备股份有限公司 | Large mining height hydraulic bracket multilevel wall supporting mechanism |
| WO2018094657A1 (en) * | 2016-11-24 | 2018-05-31 | 安徽理工大学 | Hydraulic support for soil-like coal working face, and protection method for coal seam mining |
| CN210686023U (en) * | 2019-06-10 | 2020-06-05 | 中煤北京煤矿机械有限责任公司 | Large mining height hydraulic support top and side protection mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190820 |
|
| WW01 | Invention patent application withdrawn after publication |