CN2365397Y - Terminal chock for middle and deep coal layer working face timbering - Google Patents
Terminal chock for middle and deep coal layer working face timbering Download PDFInfo
- Publication number
- CN2365397Y CN2365397Y CN 98248465 CN98248465U CN2365397Y CN 2365397 Y CN2365397 Y CN 2365397Y CN 98248465 CN98248465 CN 98248465 CN 98248465 U CN98248465 U CN 98248465U CN 2365397 Y CN2365397 Y CN 2365397Y
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- China
- Prior art keywords
- back timber
- base
- support
- support bracket
- working surface
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Abstract
The utility model relates to an end head support bracket used for supporting the working surface of a middle or thick coal bed, which is particularly suitable for the transition support of the end head of the exploiting working surface of top coal of light placement. In order to be suitable for the requirements of the integrated exploiting support of the working surface of light placement, the support bracket uses an upper and a lower frame moving mechanisms for being connected with two frame structures which are longitudinally parallel and are respectively composed of a top beam, vertical posts and a bottom base. The front and the back ends of the top beam are respectively provided with a back swinging beam and a front beam in a drawer type, and base parts of the vertical posts are provided with a resetting device increasing the stability of the support bracket. The support bracket has the advantages of light weight, high supporting strength and good stability. A left and a right frames are in mutual guidance and alternatively travel. The utility model is the ideal transition support bracket for the working surface of light placement to realize entire match.
Description
The utility model relates to the end support equipment of a kind of colliery mining face under mine, is particularly suitable for the termination transition supporting of light-duty roof caving coal work plane.
In recent years along with the development of caving coal technology, in development and the use, low caving coal is combined and to be adopted supporting transition bracket remarkable progress is arranged, but as support apparatus, in, the transition bracket volume of low caving coal is big, can't realize whole supporting with the light sublevel caving face fully-mechanized mining equipment, more can not satisfy light sublevel caving face corner coal, coal column and exploitation of irregular block section and convenient disassembly, frame is requirement flexibly gently, though it is more flexible from the HD type two frame set structures that West Germany introduces, but can not use as transition bracket, therefore, combine the technology of adopting as coal winning technology-light-duty roof caving coal newly developed, its buttock is still continued to use the support pattern of high-grade conventional mining mostly, promptly cooperates the supporting of π section steel beam with hydraulic prop.It is many unfavorable that this artificial supporting brings to production, as: because the conveyer driving section takes up room greatlyyer before and after the buttock, make support space and operating space less, ordinary production is difficulty very; Since there is not big outlet, when head, tail are buried by bastard coal or remove post caving coal, the safety that is directly threatening equipment and staff; Because during the feed of end, coal-winning machine is waited hanging beam and is changed post, complex procedures, labour intensity is big, causes production efficiency low, does not reach the purpose that serialization is produced.
The purpose of this utility model just provides a kind of face end support that is used for the medium-thickness seam face timbering, can realize the agile work of frame and adapt to the whole supporting of light-duty caving work plane especially.
Technical solution of the present utility model is: a kind of face end support that is used for face timbering under the coal mine comprises the back timber that is connected with the column two ends and base, hydraulic control operating valve set, and is located at the upper and lower frame mechanism that moves on back timber and the base respectively.This support is two vertical tower structures arranged side by side, and each framework all constitutes with the independent rack that back timber, column and base three parts are formed; Front end at back timber is equipped with the drawer formula front-axle beam of being controlled by flexible jack; The rear end of back timber is hinged with the balance arm by the control of revolution jack; Between two frameworks, rise interconnect function and the upper and lower frame mechanism that moves that is that be arranged at back timber and base middle part respectively.
Column base portion at this support is provided with the resetting means of being made up of two and half boots and rubber reseting sleeve.
Be connected by the fastening devices of forming with limited block and pressing plate between the frame mechanism with moving down at base.
The guide rail of above-mentioned drawer formula front-axle beam in the back timber front end is that two U shaped steel butt joints form.
Compared with prior art, the utlity model has following advantage:
1, in this supporting structure, the long back timber of extension type, the joint construction of split type short base and block form is carried the function reasonable Arrangement before and after making, and can be screened frame head and tail effectively, guarantees staff's safety;
2, move frame mechanism on and be hinged on the back timber place, be hinged on stud sides with former HD type frame set and compare, simple in structure, convenient disassembly, and can strengthen manipulation space;
3, because the split box style substructure is split in employing and by the fastening devices that limited block, pressing plate are formed, not only make base intensity improve, and more increased compliance, strengthened the stationarity in moving the frame motion process base plate.
4, adopt the radial type balance arm, hunting range not only can be emitted part top coal according to the work plane concrete condition between 0～30 °, and protection transporter frame head and tail is played an important role.
5, in back timber front end inside by the special drawer formula front-axle beam guide rail of U shaped steel, technology is simple, intensity is higher, is opposite to wherein cantilever extension and can effectively eliminates the card phenomenon of spraining as ordinary stent, guide effect is remarkable;
6, the resetting means of column base portion is the conjunction of rubber and cast steel, interior tough outer just, convenient disassembly, and increased the stability of support.
Description of drawings of the present utility model is as follows:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is expressed as this bracket base and the annexation that moves down frame mechanism;
Fig. 3 represented back timber and on move frame mechanism annexation;
Fig. 4 is the transverse cross sectional view of resetting means;
Fig. 5 is an A-A cross section view among Fig. 1, has represented the assembled relation of back timber and cantilever extension;
Referring to accompanying drawing 1, front view of the present utility model, it presents a frame construction in this support.As seen from the figure, balance arm 1 is hinged by bearing pin and back timber 8, and the control of being turned round jack 3 swings up and down; Cantilever extension 10 is located in the drawer shape hole of back timber 8 front ends, the effect lower edge lengthwise movement on flexible very heavy 9 tops; Column 4 upper ends and back timber 8 are hinged, the hinged base 13 in lower end, and the column base portion is provided with the resetting means of being made up of half boots 17,16 and rubber reseting sleeve, to keep the stable of total; Base 13 is box structure, and the set installing port 18 in its side is used for disposing as required the passing jack; As middle linkage, on move frame mechanism and be articulated in two top beam ear seats, 5,7 places; Moving down frame mechanism 14 fixedlys connected with two bases by fastening devices; Hydraulic control operating valve set 11 is fixed in the middle part on the front column, so that realize the control operation of relevant action.That as shown in Figure 2, crosses center line moves down frame mechanism 14 with an integral body of two split box style substructures 13,13 ' be unified into.Be welded with four limited blocks 23 in the middle part of each base, cross pressing plate 19 is located at its inboard, constitutes fastening square fastening devices.With move down frame mechanism in the cylinder body of jack 12 with below two arm plates 21,22 that piston rod links to each other respectively insert in the corresponding pressing plate 19 in both sides, and combine as a whole by bolt 20 and fastening devices, drive alternately taking a step of two bases in order to the alternately running that relies on the arm plate.In addition, two needlings, 15 outsides, front and back of base are equipped with and fix half boots 17; The pin-and-hole that jack is used is passed for setting up where necessary in hole 24.
As shown in Figure 3, between the needling of the front and back of back timber 8, be provided with ear seat 5,7; Respectively with on to move two connecting rods 25,26 that the cylinder body of jack 6 in the frame mechanism links to each other with piston rod hinged, realize alternately moving of two back timbers with this.
The structure of described resetting means, with reference to Fig. 4 and Fig. 1, by activity half boots 16 of fixing half boots 17 and can freely dismantling that are welded in base, and rubber reseting sleeve 29 and set bolt 28 compositions, this cast steel is combined with rubber parts, tough outer steel work is located at the device of column base portion in forming, and has played the effect of stabilizer column.
Accompanying drawing 5 is Fig. 1 cross section views at the A-A place, has shown the assembled relation of back timber 8 with cantilever extension 10.As seen from the figure, in the rectangular box of back timber 8, be symmetrical arranged the drawer formula guide rail of forming by two U shaped steel 30, stud 31 and cover plate 32, make the cantilever extension 10 that constitutes by top board 33 and side plate 34 under the effect of flexible jack, can slide along this guide rail, and longitudinal rail 35 has more strengthened its guide effect, for the advance support of realizing support has smoothly played remarkable efficacy.
Claims (4)
1, a kind of face end support that is used for face timbering under the coal mine, comprise the back timber that is connected with the column two ends and base, hydraulic control operating valve set, and be located at the upper and lower frame mechanism that moves on back timber and the base respectively, it is characterized in that, this support is two vertical tower structures arranged side by side, and each framework all constitutes with the independent rack that back timber, column and base three parts are formed; Front end at back timber is equipped with the drawer formula front-axle beam of being controlled by flexible jack; The rear end of back timber is hinged with the balance arm by the control of revolution jack; Between two frameworks, rise interconnect function and the upper and lower frame mechanism that moves that is that be arranged at back timber and base middle part respectively.
2, face end support as claimed in claim 1 is characterized in that, is provided with the resetting means of being made up of two and half boots and rubber reseting sleeve at the column base portion of this support.
3, face end support as claimed in claim 1 is characterized in that, is connected by the fastening devices of forming with limited block and pressing plate between the frame mechanism with moving down at base.
4, face end support as claimed in claim 1 is characterized in that, the guide rail of above-mentioned drawer formula front-axle beam in the back timber front end is that two U shaped steel butt joints form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98248465 CN2365397Y (en) | 1998-11-20 | 1998-11-20 | Terminal chock for middle and deep coal layer working face timbering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98248465 CN2365397Y (en) | 1998-11-20 | 1998-11-20 | Terminal chock for middle and deep coal layer working face timbering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2365397Y true CN2365397Y (en) | 2000-02-23 |
Family
ID=33993458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98248465 Expired - Fee Related CN2365397Y (en) | 1998-11-20 | 1998-11-20 | Terminal chock for middle and deep coal layer working face timbering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2365397Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101191419B (en) * | 2006-11-30 | 2010-05-12 | 兖州煤业股份有限公司 | Fully mechanized working faces track along end head bracket |
| CN102182477A (en) * | 2011-04-07 | 2011-09-14 | 中国神华能源股份有限公司 | Mining method for mechanized mining working surface end and corresponding end support bracket |
| CN101220734B (en) * | 2006-12-28 | 2013-06-19 | 迪芬巴赫控制系统股份有限公司 | Working bench support in mine |
-
1998
- 1998-11-20 CN CN 98248465 patent/CN2365397Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101191419B (en) * | 2006-11-30 | 2010-05-12 | 兖州煤业股份有限公司 | Fully mechanized working faces track along end head bracket |
| CN101220734B (en) * | 2006-12-28 | 2013-06-19 | 迪芬巴赫控制系统股份有限公司 | Working bench support in mine |
| CN102182477A (en) * | 2011-04-07 | 2011-09-14 | 中国神华能源股份有限公司 | Mining method for mechanized mining working surface end and corresponding end support bracket |
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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 |