CN201103399Y - Suspension hydraulic support with front and rear drag beam - Google Patents
Suspension hydraulic support with front and rear drag beam Download PDFInfo
- Publication number
- CN201103399Y CN201103399Y CNU2007200325653U CN200720032565U CN201103399Y CN 201103399 Y CN201103399 Y CN 201103399Y CN U2007200325653 U CNU2007200325653 U CN U2007200325653U CN 200720032565 U CN200720032565 U CN 200720032565U CN 201103399 Y CN201103399 Y CN 201103399Y
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- Prior art keywords
- drag
- hydraulic
- articulated
- back timber
- compression spring
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Abstract
The utility model discloses a suspension transport hydraulic bracket with front and back dragging beams used for the working face of downhole exploitation of coal mines. The front and the back dragging beams are articulated with each other through a case board. One end of a hydraulic cylinder is connected with an articulation seat of a top beam, and the other end is articulated with the back dragging beam. The two dragging beams are suspended below the top beam with a compressive spring device. Two hydraulic struts below and behind the top beam are articulated with a supporting base, and the two hydraulic struts in front of and below the top beam and a moving beam are articulated on the supporting base. A gangue-blocking plate is arranged below and behind the top beam, and the bottom end of the hydraulic strut is inserted into a column base. With features such as reasonable structure, convenient process and maintenance and safe and reliable performance, the suspension transport hydraulic bracket can effectively solve the problem of suspending roof at the coal side of the working face after blasting, eliminate hidden safety troubles and enhance productivity. Therefore, the utility model is mainly suitable for the working face of blasting mining.
Description
Technical field
The utility model relates to a kind of support apparatus that uses at the underground mining work plane, a kind of specifically be used for back production face under the coal mine a kind of with before and after drag the suspension moving hydraulic support of beam.
Background technology
At present, the support apparatus of stope under the domestic coal mine, the shortcoming of existence is: adopt flat spring in dragging beam, be unfavorable for installing, be unfavorable for changing component, the structure more complicated; And use two hydraulic jacks to move front and back and drag beam.Front pillar can not adapt to mining face under mine reality and adjust spacing within the specific limits with the back intercolumniation.No waste rock board can not prevent that old empty side inbreak spoil from scurrying into the defective in the support.
Summary of the invention
The purpose of this utility model provides and a kind ofly contains simple in structurely, is convenient to install, and is convenient to change component and with the beam that drags of a hydraulic jack; Can be within the specific limits, an intercolumniation before and after can adjusting; And have prevent the old empty side spoil of stope scurry in the support a kind of with before and after drag the suspension moving hydraulic support of beam.
In order to overcome the defective that prior art exists, the technical solution of the utility model is to solve like this: by preceding dragging beam, after drag beam, back timber, trave lling girder, two flexible hydraulic props, hydraulic jack, waste rock board, the post boots are formed, its improvements of the present utility model be two be arranged in parallel before drag beam, after drag beam to be articulated and connected with boxboard, one end and the back timber of a hydraulic jack are articulated and connected, the other end with after drag beam to be articulated and connected, before drag beam, after drag beam to adopt compression spring device to be suspended on the back timber below, the two hydraulic pressure back props in the back timber back lower place are articulated and connected on supporting seat, do not relatively move with back timber, two hydraulic pressure front standing pillars in front lower place and trave lling girder are articulated and connected on supporting seat, trave lling girder can move forward and backward with hydraulic jack, waste rock board is equipped with in the back timber back lower place, front standing pillar, the back prop bottom is inserted in the post boots.
The utility model compared with prior art, two of front and back drag beam to adopt compression spring device, be convenient to install component, security performance is better, and front and back are propped up the spacing of intercolumniation and can be adjusted within the specific limits, can prevent to destroy back prop at stope because of the spoil of old empty side inbreak, whole cantilever support can adapt to the relatively poor work plane of top board planeness, prevents that old empty side spoil from scurrying in the support, is applicable to colliery performing comprehensive coal mining work plane, simultaneously, also applicable to blast mining face in coal mine.
Description of drawings
Fig. 1 is an original state structural representation front view of the present utility model;
Figure 2 shows that reach back states such as above-mentioned back timber;
Figure 3 shows that front standing pillar reach back state;
Fig. 4 drags the fundamental diagram of beam for band compression spring;
Fig. 5 drags the sectional view of beam for the front and back of Fig. 1;
Fig. 6 is the A-A sectional view of Fig. 1.
The specific embodiment
Accompanying drawing is embodiment of the present utility model.
Below in conjunction with accompanying drawing summary of the invention of the present utility model is further described:
With reference to Fig. 1, Fig. 2, shown in Figure 3, drag before and after the band described in the utility model beam suspension moving hydraulic support, comprise back timber 4, preceding drag beam 7, after drag beam 5, trave lling girder 10, front standing pillar 8, back prop 3, hydraulic jack 6, drag beam hydraulic jack 6 and drag beam boxboard 9.Front standing pillar 8 places on the trave lling girder 10, connects by bearing pin, and back timber 4 places on two back props 3 and the trave lling girder 10, by front standing pillar 8, back prop 3 and trave lling girder 10 together support.Back timber 4 back lower places are provided with the support plate that waste rock board 1 is installed, and back timber 4 and waste rock board 1 are connected by bearing pin.Back timber 4 bottoms are placed with slideway.Before drag beam 7 and after drag the connecting link pin 16 on the beam 5 to drag front and back beam to hang on the slideway below the back timber 4.Before drag beam 7 with after drag beam 5 to fuse by dragging beam boxboard 9.Drag beam hydraulic jack 6 with after drag beam 5, back timber 4 to be articulated and connected.Compression spring device 13 is to be built-in with cylindrical compression spring 15 by spring spool 14, and cylindrical compression spring 15 is built-in with connecting link pin 16 and forms.When back timber 4 is subjected to front standing pillar 8, back prop 3 to upper support, drag the connecting link pin 16 compression springs 15 of beam in spring spool 14, to slide.
Described front and back drag beam to adopt two groups of compression spring devices at least, hang under the back timber.
Hydraulic prop and back hydraulic prop spacing before described trave lling girder can be adjusted according to the stope actual needs.
Schematic diagram of movements
Fig. 1, Fig. 2, Fig. 3 have showed whole holder function course of action, Figure 4 shows that band compression spring drags beam work schematic diagram.
Figure 1 shows that the original state of this support work, hydraulic jack 6 is in retracted mode, and front standing pillar 8, back prop 3 carryings are supported on whole frame body on the base plate.
Front standing pillar 8 unloads after carrying out perforating, shot firing operation, and back prop 3 unloadings are also mentioned, and hydraulic jack 6 stretches out.This moment since before drag beam 7, after drag beam 5 and adjacent two stands to fix, promptly base plate is fixed relatively, forms the support to back timber 4, the thrust that forms when hydraulic jack 6 stretches out makes reaches such as back timber 4, back prop 3, waste rock board 1.Front standing pillar 8 is because coal breakage stops back timber 4 slips relatively in the time of can't moving forward.
Figure 2 shows that state such as back such as above-mentioned reach such as back timber 4 grades.After back timber 4 grades are finished reach, will form supporting to newly adopting face, the workman can transport coal breakage under the supporting of back timber 4.After coal breakage has transported, front standing pillar 8 is mentioned and move forward.
Figure 3 shows that front standing pillar 8 reach back states.Promptly finish after front standing pillar 8 reach drag before removing beam 7, after drag beam 5 support arms the reach process, the support that front standing pillar 8, back prop 3 are stretched out the paired support of carrier.
Treat that entire working surface support (all supports that drag beam to be bound up promptly) all is in state shown in Figure 3 and finishes reach, with hydraulic jack 6 withdrawals, front standing pillar 8, back prop 3 support at this moment, relative base plate such as back timber 4 grades is fixed, and the pulling force that hydraulic jack 6 forms will make the beam integral body of dragging of this force piece finish reach.
So support is got back to state shown in Figure 1, finishes the circulation of an operating state.
Fig. 4 drags the fundamental diagram of beam for band compression spring.Big gun is adopted the top board injustice of formation, for do not form empty top phenomenon (making each back timber be adjacent to the exploitation top board) as far as possible, the set cap 4 that each individual prop is supported is highly also different, will drag beam can solve each support with top board with the connection of compression spring and drag the different contradiction of the identical supporting height of depth of beam (back timber height).
Fig. 5 is the sectional structure chart that drags beam.Described compression spring device 13 is to be built-in with cylindrical compression spring 15 by spring spool 14, and cylindrical compression spring 15 is built-in with connecting link pin 16 and forms.When this support was higher than adjacent supports top board, spring was compressed back timber and can raises, and formed higher relatively supporting.
Fig. 6 is the structure chart of trave lling girder 10.Reach is during front standing pillar 8, and with front standing pillar 8 unloadings and mention, trave lling girder 10 is bound up on the back timber 4 by roller 17, and the rolling by roller 17 can move forward.
Claims (4)
1, a kind of with before and after drag the suspension moving hydraulic support of beam, by preceding dragging beam, after drag beam, back timber, trave lling girder, the bi-directional expansion hydraulic prop, hydraulic jack, waste rock board, the post boots are formed, it is characterized in that two be arranged in parallel before drag beam (7), after drag beam (5) to be articulated and connected with boxboard (9), one end of a hydraulic jack (6) and back timber (4) are articulated and connected, the other end with after drag beam (5) to be articulated and connected, before drag beam (7), after drag beam (5) to adopt compression spring device (13) to be suspended on back timber (4) below, back timber (4) two hydraulic props in the back lower place (3) are articulated and connected on supporting seat (2), do not relatively move with back timber, the two hydraulic pressure front standing pillars in front lower place (8) are articulated and connected on supporting seat (11) with trave lling girder (10), trave lling girder (10) can move forward and backward with hydraulic jack (6), waste rock board (1) is equipped with in back timber (4) back lower place, front standing pillar (8), back prop (3) bottom is inserted in the post boots (12).
2, according to claim 1 a kind of with before and after drag the suspension moving hydraulic support of beam, it is characterized in that described compression spring device (13) is to be built-in with cylindrical compression spring (15) by spring spool (14), cylindrical compression spring (15) is built-in with connecting link pin (16) and forms.
3, according to claim 1 a kind of with before and after drag the suspension moving hydraulic support of beam, it is characterized in that described front and back drag beam to adopt two groups of compression spring devices at least, hang under the back timber.
4, according to claim 1 a kind of with before and after drag the suspension moving hydraulic support of beam, it is characterized in that described trave lling girder can adjust according to the stope actual needs before hydraulic prop and back hydraulic prop spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200325653U CN201103399Y (en) | 2007-08-22 | 2007-08-22 | Suspension hydraulic support with front and rear drag beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200325653U CN201103399Y (en) | 2007-08-22 | 2007-08-22 | Suspension hydraulic support with front and rear drag beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201103399Y true CN201103399Y (en) | 2008-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200325653U Expired - Fee Related CN201103399Y (en) | 2007-08-22 | 2007-08-22 | Suspension hydraulic support with front and rear drag beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201103399Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926789A (en) * | 2012-11-16 | 2013-02-13 | 无锡阳工机械制造有限公司 | Confirming method of center distance and width of hydraulic bracket |
| CN111411950A (en) * | 2020-04-12 | 2020-07-14 | 陈文东 | A but, roll adjustment cutting formula coal device for coal mining |
-
2007
- 2007-08-22 CN CNU2007200325653U patent/CN201103399Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926789A (en) * | 2012-11-16 | 2013-02-13 | 无锡阳工机械制造有限公司 | Confirming method of center distance and width of hydraulic bracket |
| CN111411950A (en) * | 2020-04-12 | 2020-07-14 | 陈文东 | A but, roll adjustment cutting formula coal device for coal mining |
| CN111411950B (en) * | 2020-04-12 | 2020-12-11 | 温州派瑞机械科技有限公司 | A but, roll adjustment cutting formula coal device for coal mining |
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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: 20080820 Termination date: 20090922 |