CN200999623Y - Collapsible two stages side protection mechanism - Google Patents
Collapsible two stages side protection mechanism Download PDFInfo
- Publication number
- CN200999623Y CN200999623Y CNU2007200892714U CN200720089271U CN200999623Y CN 200999623 Y CN200999623 Y CN 200999623Y CN U2007200892714 U CNU2007200892714 U CN U2007200892714U CN 200720089271 U CN200720089271 U CN 200720089271U CN 200999623 Y CN200999623 Y CN 200999623Y
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- Prior art keywords
- lasting
- protecting
- level
- hinged
- protecting plate
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Abstract
The utility model discloses a folding two level lasting protecting plate, which comprises a first level lasting protecting plate hinged with an extension beam positioned inside the front end of a hydraulic pressure support roof beam. The first level lasting protecting plate is pivoted with a second lasting protecting plate at front end and is connected with a top pole of a first level lasting jack arranged on the extension beam through the hinge piece with the rear end' besides, the first level lasting protecting plate is positioned with a second lasting protecting jack whose top pole is hinged with the rear end of the second lasting protecting plate through a connecting short pole; the top pole of the second lasting protecting jack is connected with the front end of the first lasting protecting plate though a connecting long pole. By positioning two levels hinged lasting protecting mechanisms on the extension beam of the support roof beam, the utility model can timely extend out the lasting protecting jack after completing the coal excavation by coal cutter and the lasting protecting plate supports the coal wall to avoid the slice of the lasting; while pulling the support, the mechanism can withdraw the lasting protecting plate rapidly. The utility model realizes the lasting protecting height of over 2.6 m and folding angle of the lasting protecting plate of 180 degree.
Description
Technical field
The utility model relates to the mine hydraulic support, relates in particular to the collapsible two-stage side protecting mechanism that is used for hydraulic support.
Background technology
Hydraulic support is mainly used in the down-hole coal excavation work plane, and when coal-winning machine was worked, the hydraulic support top board played the effect of supporting coal face roof.But after coal-winning machine has been adopted coal, coal wall caving, roof collapse phenomenon usually take place, directly influenced the safety and the efficient of coal-face, especially large-mining-height working surface, need the height of wall supporting big, but the radius of gyration of face guard is little, too conference causes unsafe factor.
The utility model content
The utility model purpose is to provide a kind of collapsible two-stage side protecting mechanism that is used for hydraulic support that can prevent effectively that coal wall caving, roof collapse phenomenon from taking place.
For achieving the above object, the utility model can be taked following technical proposals:
Collapsible two-stage side protecting mechanism described in the utility model, it comprises and is arranged on the one-level face guard that extensible canopy is hinged in the hydraulic support back timber front end body, is hinged with the secondary face guard at the front end of described one-level face guard; The rear end of one-level face guard is connected with the push rod of one-level wall supporting jack on being arranged on described extensible canopy by articulated elements; The one-level face guard is provided with secondary wall supporting jack, and the push rod of described secondary jack is hinged by connecting quarter butt and secondary face guard rear end; The top board of secondary wall supporting jack is connected by the front end of connector stock with the one-level face guard.
Described articulated elements is a connecting rod; Push rod front end at described one-level wall supporting jack is hinged with a narrow bar, and the other end of described narrow bar and described extensible canopy front end are hinged.
The utility model is owing to take the extensible canopy of set cap to be provided with radial type secondary side protecting mechanism, therefore after having adopted coal, can in time the wall supporting jack be stretched out by coal-winning machine, rib is lived in the face guard supporting in case wall caving, and can regain face guard rapidly when trying to stop people from fighting each other.The setting of radial type secondary side protecting mechanism makes the wall supporting height can reach more than 2.6 meters, and folding angle reaches 180 degree, after the secondary wall supporting is folding, the face guard radius of gyration is reduced, and the secondary wall supporting reaches 180 degree with respect to the collapsible angle of one-level wall supporting; The one-level wall supporting reaches 180 degree with respect to the also collapsible angle of back timber; Better adapted to the worker's environment under the mine, the efficient and the safety that have improved coal-face.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is retracted state figure of the present utility model.
The specific embodiment
As shown in the figure, collapsible two-stage side protecting mechanism described in the utility model, it comprises and is arranged on the one-level face guard 2 that extensible canopy 1 is hinged in the hydraulic support back timber front end body, is hinged with secondary face guard 3 at the front end of described one-level face guard 2; The rear end of one-level face guard 2 is connected with the push rod of one-level wall supporting jack 4 on being arranged on described extensible canopy 1 by connecting rod 6; One-level face guard 2 is provided with secondary wall supporting jack 5, and the push rod of described secondary jack 5 is hinged with secondary face guard 3 rear ends by connecting quarter butt 8; The top board of secondary wall supporting jack 5 is connected by the front end of connector stock 9 with one-level face guard 2.Push rod front end at described one-level wall supporting jack 4 is hinged with a narrow bar 7, and the other end of described narrow bar 7 and described extensible canopy 1 front end are hinged.
Claims (2)
1, a kind of collapsible two-stage side protecting mechanism, it comprises and is arranged on the one-level face guard (2) that extensible canopy (1) is hinged in the hydraulic support back timber front end body that it is characterized in that: the front end at described one-level face guard (2) is hinged with secondary face guard (3); The rear end of one-level face guard (2) is connected with the push rod of one-level wall supporting jack (4) on being arranged on described extensible canopy (1) by articulated elements; One-level face guard (2) is provided with secondary wall supporting jack (5), and the push rod of described secondary jack (5) is hinged with secondary face guard (3) rear end by connecting quarter butt (8); The top board of secondary wall supporting jack (5) is connected by the front end of connector stock (9) with one-level face guard (2).
2, collapsible two-stage side protecting mechanism according to claim 1 is characterized in that: described articulated elements is connecting rod (6); Push rod front end at described one-level wall supporting jack (4) is hinged with a narrow bar (7), and the other end of described narrow bar (7) and described extensible canopy (1) front end are hinged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200892714U CN200999623Y (en) | 2007-01-25 | 2007-01-25 | Collapsible two stages side protection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200892714U CN200999623Y (en) | 2007-01-25 | 2007-01-25 | Collapsible two stages side protection mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200999623Y true CN200999623Y (en) | 2008-01-02 |
Family
ID=39014030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200892714U Expired - Lifetime CN200999623Y (en) | 2007-01-25 | 2007-01-25 | Collapsible two stages side protection mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200999623Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926785A (en) * | 2012-11-16 | 2013-02-13 | 山东矿机集团股份有限公司 | Method for preventing rib spalling of coal wall and roof falling in head face and hydraulic support thereof |
| CN103643975A (en) * | 2013-12-27 | 2014-03-19 | 重庆天巨承机械制造有限责任公司 | Supporting unit for steeply-inclined medium-thickness coal seam flexibility shielding system |
| CN104533481A (en) * | 2014-11-11 | 2015-04-22 | 兖州煤业股份有限公司 | Fully mechanized mining face support |
| CN104948214A (en) * | 2015-06-03 | 2015-09-30 | 中煤张家口煤矿机械有限责任公司 | Coal clearing end support used for working face of coal planer and coal clearing method |
| CN107288667A (en) * | 2017-08-25 | 2017-10-24 | 华电郑州机械设计研究院有限公司 | Ejection device is protected in a kind of unfolding wing type extensible canopy side |
-
2007
- 2007-01-25 CN CNU2007200892714U patent/CN200999623Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926785A (en) * | 2012-11-16 | 2013-02-13 | 山东矿机集团股份有限公司 | Method for preventing rib spalling of coal wall and roof falling in head face and hydraulic support thereof |
| CN102926785B (en) * | 2012-11-16 | 2015-10-14 | 山东矿机集团股份有限公司 | The method of roof fall before anti-coal wall caving and frame and hydraulic support thereof |
| CN103643975A (en) * | 2013-12-27 | 2014-03-19 | 重庆天巨承机械制造有限责任公司 | Supporting unit for steeply-inclined medium-thickness coal seam flexibility shielding system |
| CN104533481A (en) * | 2014-11-11 | 2015-04-22 | 兖州煤业股份有限公司 | Fully mechanized mining face support |
| CN104948214A (en) * | 2015-06-03 | 2015-09-30 | 中煤张家口煤矿机械有限责任公司 | Coal clearing end support used for working face of coal planer and coal clearing method |
| CN107288667A (en) * | 2017-08-25 | 2017-10-24 | 华电郑州机械设计研究院有限公司 | Ejection device is protected in a kind of unfolding wing type extensible canopy side |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: No. 105, Huashan Road, Henan, Zhengzhou Province, China: 450013 Patentee after: Zhengzhou Coal Mining Machinery Group Co., Ltd. Address before: No. 105, Huashan Road, Henan, Zhengzhou Province, China: 450013 Patentee before: Zhengzhou Coal Mining Machinery Group Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: ZHENGZHOU MINE MACHINE GROUP CO., LTD. Free format text: FORMER NAME: ZHENGZHOU COAL MINE MACHINERY GROUP CO., LTD. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080102 |
|
| EXPY | Termination of patent right or utility model |