CN2170374Y - Hydraulic support for blasting down roof of coal mine - Google Patents
Hydraulic support for blasting down roof of coal mine Download PDFInfo
- Publication number
- CN2170374Y CN2170374Y CN 93244202 CN93244202U CN2170374Y CN 2170374 Y CN2170374 Y CN 2170374Y CN 93244202 CN93244202 CN 93244202 CN 93244202 U CN93244202 U CN 93244202U CN 2170374 Y CN2170374 Y CN 2170374Y
- Authority
- CN
- China
- Prior art keywords
- coal
- base
- hydraulic support
- caving
- back timber
- 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
Links
Images
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model relates to a top coal caving hydraulic support frame, which is suitable for comprehensive mining faces in coal mines and is composed of a top beam (1), a shielding beam (2), an upright post (3), and a base (4), wherein, traction mechanisms (7), (8) are installed on the base, and a coal caving mechanism (9) is installed on the shielding beam. The top beam and the shielding beam are connected by a draw rod (5) to form a rigid bent top beam, and the shielding beam and the base are connected by a connecting rod (6) (or a group of connecting rods). The utility model has the characteristics of small horizontal displacement in a lifting process and large space for coal caving and work maintenance.
Description
The utility model relates to a kind of caving roof coal hydraulic support, is applicable to coal mine fully-mechanized mining working.
Domestic and international widely used caving roof coal hydraulic support has back timber, caving shield, column, base and stabilizing mechanism at present.Thrust gear is arranged on base, on caving shield, put coal mechanism.Its stabilizing mechanism four connecting rods or single hinges of adopting more, quadric chain is to adopt two (group) connecting rods between caving shield and base, promptly front rod and back link are connected to form quadric chain.Its shortcoming is: put the restriction that the coal working space is subjected to front and rear connecting rods.When back timber descended, front and rear connecting rods can be to the skew of goaf direction in addition, and the spoil of support back inbreak or coal can hinder the smooth decline of back timber; For reverse quadric chain, front and rear connecting rods has influenced operation and has carried material space to the skew of work plane direction when back timber descends.Single hinge cribbing is that caving shield and base are one to be fixedly hinged a little.Its weak point is: support need make it highly increase in order to form the bigger coal working space of putting, and causes deadweight bigger than normal.The weak point that existing board plug type is put coal mechanism is that plate is an integral body, causes to be not closed completely, and drawing effectiveness is poor.
The purpose of this utility model is: provide a kind of coal space of putting bigger, the little caving roof coal hydraulic support of horizontal displacement during the support lifting.
The purpose of this utility model also is: provide a kind of pair of plate to put coal mechanism, improve drawing effectiveness.
The purpose of this utility model can reach by following measure:
The back timber of support is connected with pull bar with caving shield, forms the curved back timber of rigidity; Be connected by (group) connecting rod between caving shield and the base.Below the curved back timber of rigidity and column, connecting rod and many shaft bars of base formation static determinacy stabilizing mechanism, connecting rod and caving shield for putting the coal space.
The purpose of this utility model can also reach by following measure: put coal mechanism and be made up of two groups of jack and plate.
Advantage of the present utility model is:
1, connecting rod horizontal displacement in the support lifting process is much smaller than the vertical displacement amount, and the curved back timber of rigidity is reduced to the goaf side elongation.
2, adopt (group) connecting rod to be connected between caving shield and the base to make and put coal, the increase of upkeep operation space and support weight reduction.
3, improved drawing effectiveness.
The drawing of accompanying drawing is described as follows:
Fig. 1 is an embodiment of the present utility model.
Fig. 2 is that the A of Fig. 1 is to view.
The utility model is described in further detail below in conjunction with accompanying drawing:
1 is back timber among Fig. 1, the 2nd, and caving shield, the 3rd, column, the 4th, base.There is pull bar 5 to interconnect between back timber and the caving shield, forms the curved back timber of rigidity.The two ends of connecting rod 6 are hinged with caving shield and base respectively.The thrust gear 7 and 8 of conveyer before and after passing is installed on the base 4.Back conveyer is arranged in below connecting rod and the caving shield, is equipped with to put coal mechanism 9 on caving shield.
Put among Fig. 2 that coal jack 10 is put by two groups in coal mechanism 9 and plate 11 is formed.Two jack can be operated respectively and be beneficial to broken bulk coal body.Simultaneously since the more former whole plate of plate width to reduce to close effect better.
Claims (2)
1, a kind of caving roof coal hydraulic support, back timber (1), caving shield (2), column (3), base (4) are arranged, thrust gear (7), (8) are installed on the base, are equipped with on the caving shield and put coal mechanism (9), it is characterized in that: back timber and caving shield connect to form the curved back timber of rigidity with pull bar (5); Be connected by a connecting rod (6) between caving shield and the base.
2, caving roof coal hydraulic support as claimed in claim 1 is characterized in that putting that coal jack (10) is put by two groups in coal mechanism (9) and plate (11) is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93244202 CN2170374Y (en) | 1993-11-12 | 1993-11-12 | Hydraulic support for blasting down roof of coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93244202 CN2170374Y (en) | 1993-11-12 | 1993-11-12 | Hydraulic support for blasting down roof of coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2170374Y true CN2170374Y (en) | 1994-06-29 |
Family
ID=33817463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93244202 Expired - Fee Related CN2170374Y (en) | 1993-11-12 | 1993-11-12 | Hydraulic support for blasting down roof of coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2170374Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052084A (en) * | 2010-10-30 | 2011-05-11 | 煤炭科学研究总院太原研究院 | Remote-controlled pulley-type shielding bracket under coal mine |
-
1993
- 1993-11-12 CN CN 93244202 patent/CN2170374Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052084A (en) * | 2010-10-30 | 2011-05-11 | 煤炭科学研究总院太原研究院 | Remote-controlled pulley-type shielding bracket under coal mine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101440711A (en) | Large extraction high caving roof coal hydraulic support | |
| CN100359132C (en) | Hydraulic coal mine support for low-position roof blasting-down | |
| CN203362199U (en) | End-head hydraulic support for fully mechanized mining face | |
| CN2170374Y (en) | Hydraulic support for blasting down roof of coal mine | |
| CN2466351Y (en) | Full-shield powered support of high-, middle- and low-level caving coal | |
| CN201314239Y (en) | End support for roadway caving | |
| CN201043474Y (en) | Hydraulic support for forepoling series connection at upper end and lower end of coal mining roadway | |
| CN210858771U (en) | Multi-model positive four-bar hydraulic support with telescopic function | |
| CN202788899U (en) | Large-swing beam structured top coal caving hydraulic support | |
| CN210068218U (en) | Multipurpose roadway advance support hydraulic support | |
| CN2240607Y (en) | hydraulic prop for blasting down the roof coal | |
| CN201568067U (en) | Integrated fully mechanized top-coal caving face end support frame | |
| CN201314238Y (en) | Great mining height hydraulic bracket for top coal caving | |
| CN2128308Y (en) | Caving or network laying hydraulic chock | |
| CN213016415U (en) | Advanced hydraulic support | |
| CN2612799Y (en) | Hydraulic prop frame for low position blasting down the roof coal | |
| CN210599053U (en) | Two-frame one-set middle-placed type caving coal end support | |
| CN1011605B (en) | Hydraulic prop for moving suspended top beam | |
| CN2163232Y (en) | High steady low position hydraulic prop | |
| CN1296116A (en) | Hydraulic prop frame for low position blasting down the roof coal | |
| CN2170373Y (en) | Swinging tail beam type hydraulic support for blasting down roof of coal mine | |
| CN201003409Y (en) | Advancing slip type hydraulic support | |
| CN2095936U (en) | Mechanical hydraulic support for top coal releasing | |
| CN2161726Y (en) | Hydraulic prop | |
| CN2330785Y (en) | Transversal end hydraulic support |
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 |