CN2612799Y - Hydraulic prop frame for low position blasting down the roof coal - Google Patents
Hydraulic prop frame for low position blasting down the roof coal Download PDFInfo
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- CN2612799Y CN2612799Y CN 03215468 CN03215468U CN2612799Y CN 2612799 Y CN2612799 Y CN 2612799Y CN 03215468 CN03215468 CN 03215468 CN 03215468 U CN03215468 U CN 03215468U CN 2612799 Y CN2612799 Y CN 2612799Y
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- caving
- back timber
- shield
- jack
- hydraulic support
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Abstract
The utility model relates to a low caving coal hydraulic support, which comprises a single row double-column, a top beam, a chassis, a shield beam, a caving coal mechanism, a fore connecting bar, a rear connecting bar, a lapse mechanism, a side wall protection device, a balance jack and the like, wherein the top beam and the chassis are articulated on the two ends of the single row double-column, the shield beam is articulated on the rear end of the top beam, the caving coal mechanism is arranged on the rear of the shield beam, the fore connecting bar and the rear connecting bar are articulated between the chassis and the shield beam, the lapse mechanism is arranged on an intermediate rail of the chassis, the side wall protection device is arranged on the front of the top beam, and the balance jack is articulated between the top beam and the shield beam. The caving coal mechanism comprises a tail beam which is articulated on the rear end of the shield beam, an inserted plate jack, an inserted plate and a tail beam jack. The utility model develops a two-leg shield low caving coal hydraulic support which synthesizes the characteristics of a two-leg shield hydraulic support and a four-leg shock shield low caving coal hydraulic support, and retains many advantages of the low caving coal hydraulic support. The utility model has the advantages that a column force is balanced and capable of playing a support ability, the structure is compact, a roof distance of the top beam is reduced evidently, effective support strength is improved, support effect is improved, the utility model is favor of safety, high yield and high efficiency of a fully mechanized caving face, support operation is convenient, and the utility model is easy to use electric-hydraulic controlling to achieve automation.
Description
Affiliated technical field
The utility model relates to colliery underground mining stope support apparatus, particularly a kind of thick low caving coal hydraulic support of using greater than 5 meters, the comprehensive extracting and caving face that it is good that the top coal emits putting property of coal that is applicable to.
Background technology
Past attempts was used the two column protected type high-level caving hydraulic support.This support is short back timber, the single hinge point type stabilizing mechanism, and two upright supports are on caving shield, and single transporter sublevel caving hydrau lic support that caving shield puts in a skylight is a kind of sublevel caving hydrau lic support of earliest period, because many defectives are eliminated.
At present, the employed caving roof coal hydraulic support of comprehensive extracting and caving face is the four post support shield type support.Form by stabilizing mechanism can be divided into: forward four link type four post sublevel caving hydrau lic supports, reverse four link type four post sublevel caving hydrau lic supports; Mono-pendulum type or single hinge point type four post sublevel caving hydrau lic supports.
The patent that title is " a kind of low caving coal hydraulic support ", its patent No.: ZL 99112531.2, publication number: CN 1296115A are rolled up, disclosed for No. 21 in China's " Gazette of Patent for Invention " the 17th.Its purpose provides a kind of can the assurance and crosses coal space, the preceding operation of convenient stand behind the frame, can improve the low caving coal hydraulic support of quadric chain force-bearing situation again; Its formation is: by column two ends base that connects and the back timber of being with front-axle beam, be hinged with caving shield successively at top beam rear end and reach the tail boom of controlling by the tail boom jack with telescopic plate, front and rear connecting rods is arranged between base rear portion and caving shield, and front rod is double link and is positioned at after the rear column.This support is the typical frame type of the present four post support shield type caving roof coal hydraulic support that uses.
Though several support patterns of generally using have also obtained better effects now, for important function has been brought into play in coal industry, but its weak point is: the compliance ubiquity defective of its type and country rock, and the front and rear row column discontinuity equalization phenomenon of four-column type is serious, front pillar is stressed big, rear pillar is stressed little, even tension, and the mechanical characteristic of support worsens, support capacity is not in full use, and support is to the top board bad adaptability.Particularly along with improving constantly that the colliery high-yield and high-efficiency requires, generally adopt two pillar electrichydraulic control hydraulic supports abroad, existing four post sublevel caving hydrau lic supports are unfavorable for adopting electrichydraulic control, improve the work plane automaticity.
Summary of the invention
In order to overcome the weak point of existing low caving coal hydraulic support, the utility model provides a kind of novel low caving coal hydraulic support, this support can fundamentally eliminate front and rear row column discontinuity equalization defective, improve the mechanical characteristic of support, improve sublevel caving hydrau lic support to the compliance of country rock, improve the fully mechanized coal face supporting effect, adapt to the high-yield and high-efficiency top coal caving and require, be easier to realize the electrichydraulic control and the production automation.
The technical scheme that its technical problem that solves the utility model adopts is:
This low caving coal hydraulic support, by hinged respectively back timber and the base of column and column two ends, be articulated in the caving shield of top beam rear end, the caving shield rear portion put coal mechanism, be articulated between base rear portion and the caving shield rear portion before connect stalk and after connect stalk, be loaded on the middle-grade thrust gear of base, the wall supporting device of back timber front portion constitutes.It puts coal mechanism by the tail boom that is hinged on the caving shield rear end, plate jack in the tail boom and by the push-and-pull of plate jack along the gathering sill in the tail boom and flexible plate is articulated between caving shield and the tail boom, the tail boom jack that coal is put in the tail boom swing is constituted.Wherein, column only adopts two and be single layout.Be provided with balance jack under the pin joint of back timber and caving shield, the two ends of balance jack are hinged on respectively on back timber, the caving shield.
The technical scheme that its technical problem that solves the utility model adopts can also be:
The back timber of this low caving coal hydraulic support adopts integral top beam, or claims whole top rigidity back timber.
The back timber of this support also can adopt articulated roof beam, or claims the segmentation articulated roof beam, and it is made of short back timber and hinged front-axle beam, the front-axle beam jack of front end thereof.
The balance jack of this support adopts two, places the close longitudinal midline position of back timber, caving shield.
The balance jack of this support also can adopt single, places the longitudinal midline position of back timber, caving shield.
The tooth of the plate external part of putting coal mechanism of this support is a conical tooth, and the number of tooth is 5～9.
Column of this support and back timber, the hinged needling of base adopt the monoblock cast structure.
The wall supporting device of this support is made of the face guard that is articulated in the back timber front end, wall supporting jack, quarter butt, stock, and four are hinged to quadric chain.
The back timber of this support adopts the back timber that has the active side backplate on it.
The beneficial effects of the utility model are:
1. back timber has only two root posts, single support, and the column stress equalization, support capacity can be given full play to.
2. compare the distance of face roof under control that can significantly reduce back timber with the four post support shield type support, improve effective support intensity, improve supporting effect, help the safe high-yield and high-efficiency of work plane.
3. compact conformation, the center to center distance of conveyer before and after reducing effectively, favourable intensive management.
4. putting coal mechanism can put down the caving coal of carrying on the back on the caving shield that emits, and can avoid causing " antiaircraft gun " operating mode of support owing to move behind caving shield back of the body cash and the roof pressure, favourable to the reasonable operating mode that guarantees two column holders.
5. two pillar sublevel caving hydrau lic support liftings, to move frame easy to operate, is easier to adopt electrichydraulic control, realizes high-efficient automatic.
6. the good characteristics that kept low caving coal hydraulic support:
A. coal discharge outlet is low and continuous, and drawing effectiveness is good, does not have the back loss, the recovery ratio height.
B. the back conveyer is along backplane, and float coal is discharged easily, and it is brisk to move frame.
C. tail beam flashboard can be cut off coarse coal, makes coal discharge outlet be difficult for stopping up.
D. it is big that the coal space is put at the rear portion, and the tail boom pendulum angle is big, helps top coal inbreak, puts coal efficient height.
E. effectively reduce and the obstruct coal dust.
Description of drawings
Fig. 1 is the structural representation front view of the utility model integral top beam low caving coal hydraulic support
Fig. 2 is the structural representation vertical view of the base portion of Fig. 1 low caving coal hydraulic support
Fig. 3 is the structural representation of the wall supporting device of Fig. 1 low caving coal hydraulic support
Fig. 4 is the structural representation front view of the active side backplate part of back timber
Fig. 5 is the structural representation vertical view cutaway drawing of the active side backplate part of back timber
Fig. 6 is a structural representation front view of putting the plate of coal mechanism
Fig. 7 is a structural representation vertical view of putting the plate of coal mechanism
Fig. 8 is the structural representation front view of the utility model articulated roof beam low caving coal hydraulic support
Among the figure: the 1-back timber, the 2-caving shield, the 3-front rod, the 4-back link, the 5-base, 6-is put the tail boom of coal mechanism, the 7-plate, the 8-column, the 9-balance jack, the 10-thrust gear, 11-wall supporting device, 12-tail boom jack, 13-plugs in the jack of betraing, the 14-face guard, the 15-quarter butt, the 16-stock, 17-wall supporting jack, 18-active side backplate, the 19-guide peg, 20-thruster jack, 21-fixation side backplate, the 22-tooth, the 23-front-axle beam, 24-front-axle beam jack, 25-back timber (short back timber)
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Embodiment 1:
The utility model low caving coal hydraulic support shown in Figure 1, mainly by back timber (1), caving shield (2), front rod (3), back link (4), base (5), column (8), balance jack (9), thrust gear (10), wall supporting device (11), and tail boom (6), plate (7), the tail boom jack (12) of putting coal mechanism are formed.
Between back timber (1) and the base (5) by the hinged support of two root posts (8), the rear end of back timber (1) and caving shield (2) are hinged, the pin joint below of back timber (1) and caving shield (2) has two balance jack (9) to be articulated between the two, the rear end of caving shield (2) is hinged with the tail boom (6) of putting coal mechanism, and the pin joint below of caving shield (2) and tail boom (6) has tail boom jack (12) to be articulated between the two.Front rod (3), back link (4) are articulated between caving shield (2) rear portion and base (5) rear portion.Thrust gear (10) is arranged in the middle retaining of base (5).Wall supporting device (11) is hinged on the front end of back timber (1).
In brief, the utility model is the hydraulic support of two post supporting top beams, four connecting rod stabilizing mechanisms, two conveyers in front and back, low caving coal, or claims the two column protected type low caving coal hydraulic support.
Column (8) only with two, be single layout, the front and back of column (8) are walkway.Column (8) adopts double-telescopic upright post.Column (8) and back timber (1), the hinged needling employing monoblock cast structure of base (5) are to guarantee support strength.Be that needling is single-casting, band horizontal bar plate one casts out, and increases the weld seam bonding strength between needling and main muscle.As shown in fig. 1.
Fig. 2 illustrates the structure of base (5) Yu the thrust gear (10) of this support bottom.
Base (5) is split type rigid base, the split box structure.Base (5) is provided with and moves frame and lift base device, the base front end can be lifted more than the 200mm, and support is had under mud stone and the up-and-down situation in the base plate part, can prevent that the base front end from pricking the end, passing through smoothly, reduces the cleaning float coal.But lift the base device integral demounting.
Thrust gear (10) adopts the long transfer bar mechanism of oppositely installing, and is arranged in the middle retaining of base (5).Its push unit is a box structure spare, and the two ends of push unit link to each other with the passing jack with conveyer respectively, are the critical pieces that support and conveyer move.
Wall supporting device shown in Figure 3 is hinged on the front end of back timber (1), adopts quadric chain.By the face guard (14) that is hinged on back timber (1) front end, lower end by hinged with it quarter butt (15), be hinged with the lower end that is hinged on the stock (16) on another pin joint of back timber (1) front end, this hinging pin shaft is hinged with the push rod end that is hinged on the wall supporting jack (17) on the back timber (1) again simultaneously, constitutes quadric chain.Face guard (14) is realized upset and is received flat by quadric chain and wall supporting jack (17) effect.It is big to be characterized in choosing angle.
Fig. 4,5 shows the structure of the active side backplate part of back timber (1).
Back timber (1) adopts integral top beam, or claims whole top rigidity back timber.Back timber has the active side backplate on (1).Two side guard boards of back timber are for sealing and anti-down usefulness between frame.Wherein a side is fixation side backplate (21), and opposite side is active side backplate (18), scalable action.Active side backplate (18) is hinged by interior two the thruster jack (20) of guide peg (19) and back timber, and is flexible by means of the passing realization of thruster jack (20).
Caving shield (2) also adopts band active side backplate.The active side backplate of caving shield (2), structure is identical with the active side backplate of back timber.
Balance jack (9) adopts two jack, is arranged in the position of the close longitudinal midline of back timber (1), caving shield (2).It mainly acts on is to adjust the back timber point of resultant force, keeps the reasonable position attitude of set cap.The two jack of employing can strengthen the adjustment capability to the bracket support state, make support adapt to support and the top board interaction that the top board condition changes and rear portion caving coal causes better and change, and effectively guarantee the supporting of rib side top board.
Front and rear connecting rods (3,4) is articulated between the rear portion of the rear portion of caving shield (2) and base (5), constitutes quadric chain.Front rod (3) adopts double link, back link (4) to adopt single connecting rod.The single positive four-bar linkage structure in two backs both can increase the anti-twisting property of support before this, made that support stability is good, reliability is high, can guarantee that again the support rear portion has than large space, was convenient to that rear portion equipment is installed and maintenance.
Put coal mechanism by tail boom (6), plate (7), tail boom jack (12), and plate jack formations such as (13).Tail boom (6) directly is hinged on the rear end of caving shield (2), the plate (7) of plate jack (13) and push-and-pull thereof is housed in the tail boom (6), operation plate jack (13) can make plate (7) stretch the gathering sill of tail boom (6) in, with broken coarse coal, seal cash and put coal.Be articulated in the tail boom jack (12) between caving shield (2) and the tail boom (6), be used for tail boom (6) on accommodate accent.Working space is adjusted in going up of tail boom (6) when putting, following timing plate retraction realizes putting coal.The tail boom of putting coal mechanism also can adopt band active side backplate.Constitute by two the thruster jack, guide peg and the active side backplate that are located at tail boom bottom surface, single-sided arrangement.
Fig. 6,7 illustrates the structure of the plate (7) of putting coal mechanism.The tooth (22) of plate (7) external part adopts conical tooth, can be circular cone tooth, pyramid tooth, serves as preferred with the rectangular pyramid tooth; The number of tooth (22) is kept to 5～9, can increase the broken coal ability of plate.
Support adopts the high-volume hydraulic system, and main feed liquor and lead back liquid employing double-circuit system is with the assurance advancing velocity.Can go up at support caving shield (2), back link (4) or tail boom (6) high pressure sprays fog equipment is installed.
Embodiment 2:
Fig. 8 illustrates another kind of form of the present utility model, and promptly back timber adopts the two column protected type low caving coal hydraulic support of articulated roof beam.Articulated roof beam, or claim the segmentation articulated roof beam, constitute by back timber (25), front-axle beam (23), front-axle beam jack (24).Front-axle beam (23) is articulated in the front end of back timber (25), and front-axle beam jack (24) is articulated between back timber (25) and the front-axle beam (23).Correspondingly, the wall supporting device (11) of its quadric chain should be hinged on the front-axle beam (23), and promptly the rear end of face guard (17), stock (15), wall supporting jack (16) are hinged on the front end of front-axle beam (23).In addition, this routine remainder all can be identical with embodiment 1.
In above-mentioned two embodiment: integral top beam is simple and reliable for structure, and back timber front end supporting power is big; The articulated roof beam complex structure, back timber front end supporting power is less than the former, but the compliance of support is good.
Except that above technical scheme of giving an example, also have following technical measures also can select to adopt:
1. column: the single telescopic column that adopts the band mechanical extension bar.
2. balance jack: adopt single jack, be arranged in the longitudinal midline position of back timber, caving shield.
3. thrust gear: the short transfer bar mechanism that adopts forward to install.
4. back timber and caving shield: adopt not with the active side backplate.
5. put coal mechanism: its tail boom adopts not with the active side backplate.
6. wall supporting device: adopt the wall supporting jack and face guard is directly hinged, extension and contraction control face guard form.
Processing and manufacturing: the rack body structural meterials adopts 70kg～80kg grade high-strength steel plate welding.
Claims (9)
1. low caving coal hydraulic support, comprise back timber and base that column and two ends thereof are hinged respectively, be articulated in the caving shield of top beam rear end, the caving shield rear portion put coal mechanism, be articulated in the forward and backward stalk that connects between base rear portion and the caving shield rear portion, be loaded on the middle-grade thrust gear of base, the wall supporting device of back timber front portion; Wherein, put coal mechanism and comprise the tail boom that is hinged on the caving shield rear end, plate jack in the tail boom and the plate that stretches by its push-and-pull, be articulated between caving shield and the tail boom, can make the tail boom swing put the tail boom jack of coal, it is characterized in that: said column is two root posts (8) that are single layout, balance jack (9) is arranged under the pin joint of back timber and caving shield (2), and its two ends are hinged on respectively on back timber, the caving shield (2).
2. low caving coal hydraulic support according to claim 1 is characterized in that: said back timber is integral top beam (1).
3. low caving coal hydraulic support according to claim 1 is characterized in that: said back timber is an articulated roof beam, comprises the hinged front-axle beam (23) of back timber (25) and front end thereof, front-axle beam jack (24).
4. low caving coal hydraulic support according to claim 1 is characterized in that: said balance jack (9) is two, is positioned at the position of the close longitudinal midline of back timber, caving shield (2).
5. low caving coal hydraulic support according to claim 1 is characterized in that: said balance jack (9) is positioned at the longitudinal midline position of back timber, caving shield (2) for single.
6. low caving coal hydraulic support according to claim 1 is characterized in that: the said tooth (22) of putting plate (7) external part of coal mechanism is a conical tooth, and the number of tooth is 5～9.
7. low caving coal hydraulic support according to claim 1 is characterized in that: said column and back timber, the hinged needling of base (5) are the monoblock cast structure.
8. low caving coal hydraulic support according to claim 1, it is characterized in that: said wall supporting device (11), comprise the face guard (14), wall supporting jack (17), quarter butt (15) and the stock (16) that are hinged with the back timber front end, four are hinged to quadric chain.
9. low caving coal hydraulic support according to claim 1 is characterized in that: said back timber has the active side backplate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03215468 CN2612799Y (en) | 2003-03-05 | 2003-03-05 | Hydraulic prop frame for low position blasting down the roof coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03215468 CN2612799Y (en) | 2003-03-05 | 2003-03-05 | Hydraulic prop frame for low position blasting down the roof coal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2612799Y true CN2612799Y (en) | 2004-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03215468 Expired - Lifetime CN2612799Y (en) | 2003-03-05 | 2003-03-05 | Hydraulic prop frame for low position blasting down the roof coal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2612799Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100359132C (en) * | 2003-03-05 | 2008-01-02 | 兖矿集团有限公司 | Hydraulic coal mine support for low-position roof blasting-down |
| CN102151942A (en) * | 2011-03-17 | 2011-08-17 | 山东矿机集团股份有限公司 | Hydraulic support self-preheating and automatic step-by-step welding process |
| CN102352762A (en) * | 2011-10-13 | 2012-02-15 | 兖州煤业股份有限公司 | Low-position coal-caving hydraulic bracket |
| CN102808638A (en) * | 2012-08-20 | 2012-12-05 | 郑州煤矿机械集团股份有限公司 | Insertion plate for tail beam of sublevel caving coal hydraulic bracket |
| CN102926777A (en) * | 2012-11-16 | 2013-02-13 | 无锡阳工机械制造有限公司 | Top beam structure of hydraulic bracket |
| CN103557023A (en) * | 2013-11-15 | 2014-02-05 | 中煤北京煤矿机械有限责任公司 | Hydraulic bracket for extremely soft coal bed |
| CN107939434A (en) * | 2017-12-22 | 2018-04-20 | 郑州合新科技有限公司 | Single pendulum beam caving roof coal hydraulic support |
-
2003
- 2003-03-05 CN CN 03215468 patent/CN2612799Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100359132C (en) * | 2003-03-05 | 2008-01-02 | 兖矿集团有限公司 | Hydraulic coal mine support for low-position roof blasting-down |
| CN102151942A (en) * | 2011-03-17 | 2011-08-17 | 山东矿机集团股份有限公司 | Hydraulic support self-preheating and automatic step-by-step welding process |
| CN102352762A (en) * | 2011-10-13 | 2012-02-15 | 兖州煤业股份有限公司 | Low-position coal-caving hydraulic bracket |
| CN102352762B (en) * | 2011-10-13 | 2015-09-23 | 兖州煤业股份有限公司 | Low caving coal hydraulic support |
| CN102808638A (en) * | 2012-08-20 | 2012-12-05 | 郑州煤矿机械集团股份有限公司 | Insertion plate for tail beam of sublevel caving coal hydraulic bracket |
| CN102926777A (en) * | 2012-11-16 | 2013-02-13 | 无锡阳工机械制造有限公司 | Top beam structure of hydraulic bracket |
| CN103557023A (en) * | 2013-11-15 | 2014-02-05 | 中煤北京煤矿机械有限责任公司 | Hydraulic bracket for extremely soft coal bed |
| CN107939434A (en) * | 2017-12-22 | 2018-04-20 | 郑州合新科技有限公司 | Single pendulum beam caving roof coal hydraulic support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080102 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |