CN2163232Y - High steady low position hydraulic prop - Google Patents
High steady low position hydraulic prop Download PDFInfo
- Publication number
- CN2163232Y CN2163232Y CN 93217825 CN93217825U CN2163232Y CN 2163232 Y CN2163232 Y CN 2163232Y CN 93217825 CN93217825 CN 93217825 CN 93217825 U CN93217825 U CN 93217825U CN 2163232 Y CN2163232 Y CN 2163232Y
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- CN
- China
- Prior art keywords
- support frame
- hinged
- tail
- shielding
- base
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a novel self-walking stepping hydraulic support frame used for the low level caving coal mining method. The front end of a top beam of the support frame is hinged with a front beam with a side guard plate to realize the full seal of a top plate and the close top contact. The support frame forms a four connecting rod supporting mechanism through a Y-shaped supporting rod, a supporting rod, a base, and a shielding beam and has high stability. The back part of the shielding beam of the support frame is hinged with a tail beam with an inserting plate, and the shielding beam and the tail beam are respectively hinged with both ends of a swinging jack so that the tail beam can swing, and the operation space of the back part of the support frame is enlarged, which is favorable to the top coal breaking and the successful recovery.
Description
The utility model belongs to mine equipment hydraulic support field.
In the existing domestic and international low caving coal hydraulic support, its back timber and caving shield mostly are overall structure, the FZ250(15/28 that existing Zhengzhou coal machine factory produces) the type hydraulic support, though its back timber is told front-axle beam, but front-axle beam does not have side guard board, is unfavorable for closely connecing top and anti-leak-stopping top; Though its caving shield is told tail boom, between tail boom and base hydraulic prop is arranged, limited support afterbody working space insufficient strength, stable bad.
The purpose of this utility model be to provide a kind of low caving coal coal-mining method used can closely connect the top, and full support top seal has the novel high stability low caving coal hydraulic support that can swing the short-tail beam.
The utility model comprises front-axle beam, back timber, caving shield, tail boom, base, powerful pedestal, pillar, and at the articulated front-axle beam that has side guard board of back timber front end, back timber and front-axle beam are hinged on the jack two ends; Powerful pedestal on base and caving shield form four link supports mechanisms by Y type pole and pole, make support have high stability; Caving shield and tail boom are hinged on the two ends of swing jack respectively.
The advantage of this support is: 1, the articulated front-axle beam that has side guard board of back timber front end, and can realize totally-enclosed top board and closely connect the top; 2, powerful pedestal, Y shape pole, pole and caving shield form four link supports mechanisms, have strengthened support stability; 3, caving shield and tail boom are hinged on swing jack two ends respectively, thereby make support rear portion working space bigger; Swing by tail boom can also make the back zone transporter protected fully or be exposed to coal recovery area, top fully, helps crushing voerhead coal and reclaims smoothly.
Embodiment of the present utility model is illustrated in conjunction with the accompanying drawings.
Fig. 1 is the utility model structural representation.
Fig. 2 is the A-A sectional drawing of Fig. 1.
As shown in the figure, the articulated successively from front to back forestope in the utility model top (1), front-axle beam (2), back timber (3), caving shield (4), tail boom (5); Forestope belongs to prior art; In front-axle beam (2), back timber (3), caving shield (4), tail boom (5) both sides, the side guard board (6) that either side is freely stretched is all arranged, side guard board belongs to prior art; Tail boom has the plate that can stretch in (5), and plate belongs to prior art; Front-axle beam (2) and back timber (3) are hinged on jack (7) two ends respectively, can make front-axle beam (2) and back timber (3) form proper angle according to this; Caving shield (4) and tail boom (5) are hinged on swing jack (8) two ends respectively, can make tail boom (5) swing than wide-angle according to this; Bottom of the present utility model is hinged with base (10) and planker (11) from front to back; Base (10) front part sides has both sides, two hydraulic props (12) middle part that two hydraulic props (13) are arranged, and all hydraulic pillar top and back timber (3) bottom and base (10) are hinged; Welding powerful pedestal (14) at base (10) postmedian; At powerful pedestal (14) upper articulation Y shape pole (15) and pole (16) are arranged; Y shape pole (15), pole (16) top are hinged with caving shield (4) again; Thereby form high stability four link supports mechanisms by powerful pedestal (14), Y shape pole (15), pole (16) and caving shield (4).
Claims (1)
1, a kind of high stability low caving coal hydraulic support comprises front-axle beam (2), back timber (3), caving shield (4), tail boom (5), base (10), pillar (12), (13), powerful pedestal (14), it is characterized in that:
A. the articulated front-axle beam (2) that has side guard board (6) of back timber (3) front end;
B. the powerful pedestal (14) on the base (10) is connected by Y type pole (15), pole (16) with caving shield (4), forms four link supports mechanisms;
C. caving shield and tail boom are hinged on the two ends of swing jack (8) respectively.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 93217825 CN2163232Y (en) | 1993-07-02 | 1993-07-02 | High steady low position hydraulic prop |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 93217825 CN2163232Y (en) | 1993-07-02 | 1993-07-02 | High steady low position hydraulic prop |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2163232Y true CN2163232Y (en) | 1994-04-27 |
Family
ID=33797653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 93217825 Expired - Fee Related CN2163232Y (en) | 1993-07-02 | 1993-07-02 | High steady low position hydraulic prop |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2163232Y (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102472102A (en) * | 2009-07-10 | 2012-05-23 | 乔伊·姆·特拉华公司 | Longwall mining roof supports |
CN102536292A (en) * | 2012-02-23 | 2012-07-04 | 郑州四维机电设备制造有限公司 | Automatic coal falling type hydraulic support |
CN105626116A (en) * | 2016-03-15 | 2016-06-01 | 郑州四维矿业机械有限责任公司 | Fully mechanized coal mining face support device and end support thereof |
CN107939430A (en) * | 2017-11-30 | 2018-04-20 | 中煤北京煤矿机械有限责任公司 | Two column hydraulic support of dibit balance jack |
-
1993
- 1993-07-02 CN CN 93217825 patent/CN2163232Y/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102472102A (en) * | 2009-07-10 | 2012-05-23 | 乔伊·姆·特拉华公司 | Longwall mining roof supports |
CN102472102B (en) * | 2009-07-10 | 2015-03-11 | 乔伊·姆·特拉华公司 | Longwall mining roof supports |
US9670777B2 (en) | 2009-07-10 | 2017-06-06 | Joy Mm Delaware, Inc. | Longwall mining roof supports |
CN102536292A (en) * | 2012-02-23 | 2012-07-04 | 郑州四维机电设备制造有限公司 | Automatic coal falling type hydraulic support |
CN105626116A (en) * | 2016-03-15 | 2016-06-01 | 郑州四维矿业机械有限责任公司 | Fully mechanized coal mining face support device and end support thereof |
CN107939430A (en) * | 2017-11-30 | 2018-04-20 | 中煤北京煤矿机械有限责任公司 | Two column hydraulic support of dibit balance jack |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |