CN102168572B - Waste filling supporting bracket - Google Patents
Waste filling supporting bracket Download PDFInfo
- Publication number
- CN102168572B CN102168572B CN201010113899A CN201010113899A CN102168572B CN 102168572 B CN102168572 B CN 102168572B CN 201010113899 A CN201010113899 A CN 201010113899A CN 201010113899 A CN201010113899 A CN 201010113899A CN 102168572 B CN102168572 B CN 102168572B
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- Prior art keywords
- back timber
- jack
- hinged
- balance arm
- base
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Abstract
The invention relates to a waste filling supporting bracket. The waste filling supporting bracket comprises a protective side, a top beam, an upright post, a four-rod mechanism, a base, a scraper conveyer and tamping mechanisms, wherein the hydraulic support is provided with a rear top beam; the front end of the rear top beam, the rear end of the top beam and the upper end of an upper connecting rod are hinged through a hinge pin; a rear upright post is arranged between the middle part of the rear top beam and the base; the rear part of the rear top beam is provided with a chute along the traverse direction; a rear slipping way is arranged in the chute; the rear end of the base is hinged with a waste baffle seat; and the tamping mechanisms are hinged on the waste baffle seat. In the waste filling supporting bracket, the front end of the rear top beam, the rear end of the top beam and the upper end of the upper connecting rod are hinged through the hinge pin to form a structure of which three hinging points are superposed; the upper connecting rod cannot be moved when the top beam or the rear top beam is swung, lifted or put down, the stable structure of the supporting bracket is ensured, and the problem of top plate caving or waste rock leakage is solved. The waste baffle seat at the rear end of the base is provided with the two tamping mechanisms, fillers are more compactly filled, the overall strength of the fillers is improved, and the deformation of the earth surface is effectively controlled.
Description
Technical field
The present invention relates to comprehensive mechanical coal mining face timbering equipment under the coal mine, particularly hydraulic support specifically is a kind of waste filling support frame.
Background technology
In short supply along with the energy, the quickening day by day of coal in China exploitation paces, increasing mine is faced with the resource exhaustion problem, is to solve " three times " to press the coal problem.China presses coal through adopting multiple technologies measure liberation " three times " such as traditional band exploitation, resettlement village, filling mining, improves coal mining rate.But along with the increase of mining depth, the raising of the increase of village migration cost and filling technique technological level, the filling mining technology has become flourish gesture.At present, backfilling goaf generally uses hydraulic filling, filling-up pneumatically.Hydraulic filling need be set up one and overlapped independently drainage system, and equipment is many, investment is big, technical sophistication, travel fatigue are big, is difficult to promote the use of.Also have to adopt and grind the stone backfilling goaf, it need carry spoil haulage device and a large amount of spoils, and goaf filling is unreal, and top board has certain deflection.China utility model patent " filling mining hydraulic support " (February 6 2007 applying date; January 16 2008 notice of authorization day, notice of authorization CN 201007216Y) manual discloses a kind of hydraulic support, the drag conveyor that under tail boom, is provided with; Be provided with telescopic compacting jack at base rear end; The jack head is provided with the shovel plate, and the middle part is provided with the adjusting jack that is hinged on the base, is used for the spoil of filling is tamped.Its back timber postmedian and last connecting rod are hinged; And tail boom is articulated in the rear end of back timber; When swing up-down back timber, also can drive connecting rod and move, be unfavorable for keeping the rock-steady structure of support, when the up-down back timber, can have influence on the supporting effect of tail boom part; The problem that roof caving very easily takes place or leak cash is brought the production safety accident.Simultaneously, its scratch board conveyor is fixed on the tail boom, can not adjust the position of scratch board conveyor, is not easy to adjust the spoil transport path.
Summary of the invention
The object of the present invention is to provide a kind of waste filling support frame; The last rod hinge connection that described this waste filling support frame will solve filling support in the prior art causes support its structural instability when going up and down in the back timber postmedian; Roof caving takes place easily or leak cash, bring the production safety accident; And scratch board conveyor is fixed on the tail boom, is not easy to adjust the technical problem of spoil transport path.
The objective of the invention is to realize through following technical scheme: comprise wall supporting, back timber, column, four-bar mechanism, base, scratch board conveyor and reinforcement mechanism, wall supporting is articulated in the back timber front end, is hinged with the wall supporting jack between wall supporting and the back timber; Be hinged with front rod and back link on the base, the upper end of last connecting rod is articulated on the back timber, the mutually hinged formation quadric chain of last connecting rod, front rod, back link and base; Wherein, This hydraulic support also is provided with the back back timber, and back back timber front end, top beam rear end and last small end are hinged through a bearing pin, is provided with rear column between back back timber middle part and the base; Be provided with chute at back timber rear portion, back along fore-and-aft direction; Be provided with the back in this chute and slip, after the side of sliding down be hung with scratch board conveyor, the back slip with the back back timber between be provided with after the slide jack; Base rear end is hinged with retaining cash seat; Said reinforcement mechanism is articulated on the retaining cash seat, and said reinforcement mechanism comprises being articulated in goes up swing reinforcement mechanism and lower swing reinforcement mechanism on the retaining cash seat, on swing reinforcement mechanism and be located at above the lower swing reinforcement mechanism; Last swing reinforcement mechanism comprises balance arm, is sheathed on interior upward the swinging rammer cash beam, go up the balance arm jack and upward swing rammer cash beam jack of balance arm; Last balance arm jack is articulated between balance arm and the retaining cash seat, and last swing is rammed cash beam jack and is articulated in balance arm and goes up swing and ram between the cash beam, and the lower swing reinforcement mechanism comprises down balance arm, is sheathed on down the interior lower swing rammer cash beam of balance arm, following balance arm jack and lower swing rammer cash beam jack; Following balance arm jack is articulated in down between balance arm and the retaining cash seat, and lower swing rams cash beam jack and is articulated in down between balance arm and the lower swing rammer cash beam.Between the top of back timber and back back timber, be provided with the rubber-like steel spring plate; This steel spring plate one end is fixed; For slidably connecting, said steel spring plate one end is fixedly connected with back timber the other end along fore-and-aft direction, and the other end inserts in the groove of a fore-and-aft direction being located at back timber top, back.
The rear portion of back timber is provided with supporting plate in the back, and supporting plate flexibly connects through chute on the back timber after being arranged on and back back timber, and the forward and backward two ends of back slide jack are connected with supporting plate with the back back timber respectively, and said back slips to be located on this supporting plate.
Between back timber rear portion and last connecting rod middle part, also be hinged with a balance jack.
Retaining cash seat is connected with base through two pin joints.
Said upward connecting rod is to be the employing y-type structure, and last small end and back timber are hinged with the back back timber, and lower end and front rod and back link are hinged, and last connecting rod adopts high strength casing welded construction, has the skylight on the last connecting rod.
Last balance arm, go up swing ram the cash beam, down balance arm and lower swing to ram the cash beam be high strength casing welded construction.
Said base adopts band gap bridge easy opened high strength casing welded construction, is provided with the passing framework between the base crotch and passes jack, and it is hinged with the passing framework to pass jack one end, and it is hinged to pass the jack other end and base.
The present invention compares with prior art, and its effect is actively with tangible.This waste filling support frame is hinged through a bearing pin with back back timber front end, top beam rear end and last small end; Form the structure that three pin joints overlap; When swing up-down back timber or back back timber, connecting rod is moved, guarantee the Stability Analysis of Structures of this support frame, simultaneously; Can not influence the rock-steady structure of top, back when swing back timber or back back timber yet, avoid the problem that roof caving takes place or leak cash when beam or back timber; On the back timber of back, be provided with the back through chute and slip, scratch board conveyor is located at the back and is slipped, and slips the position of jack adjustment scratch board conveyor by the back, with adjustment spoil transport path.The retaining cash seat of base rear end is provided with two reinforcement mechanisms; Wherein upward the compacting of swing reinforcement mechanism is from support place far away, and then can tamp by the lower swing reinforcement mechanism near the place the support, and such two reinforcement mechanisms combine and can effectively tamp fill area; The zone does not blank; Guarantee to carry out more closely knit filling to charges after the filling, improve the bulk strength of charges, can effectively control the deformation on the face of land.Between back timber and back back timber, the rubber-like latch plate is set; This steel spring plate one end is fixed, the other end can move along the fore-and-aft direction of support; Between back timber, back back timber during relative motion; This steel spring plate has been avoided the gap between back timber, the back back timber, prevents effectively that charges such as spoil from falling from this gap to cause accident.In the chute of back top beam rear end, supporting plate is set, the back slide is located on the supporting plate, can when needed supporting plate be stretched out like this, adjust the position of spoil transporter, can enlarge the coverage of spoil transporter.Also be hinged with a balance jack between back timber rear portion and the last connecting rod middle part, be used to regulate and keep the attitude of back timber, be convenient to adjust flexibly the attitude of back timber.
Description of drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is the vertical view of base of the present invention.
Fig. 3 is the bar linkage structure sketch map of going up of the present invention.
The specific embodiment
Through embodiment the present invention is done further explain below in conjunction with accompanying drawing.
Like Fig. 1, Fig. 2 and shown in Figure 3, in the present embodiment, comprise wall supporting 1, back timber 3, column 17, four-bar mechanism, base 19, scratch board conveyor and reinforcement mechanism; At the built-in extensible canopy 25 that is provided with of back timber 3 front end edge fore-and-aft directions, be hinged with extensible canopy jack 26 between extensible canopy 25 and the back timber 3, wall supporting 1 is articulated in extensible canopy 25 front ends; Through extensible canopy is set, supporting scope that can expanded stent is hinged with wall supporting jack 2 between wall supporting 1 and the back timber 3; Be hinged with front rod 15 and back link 14 on the base 19, the upper end of last connecting rod 16 is articulated on the back timber 3, last connecting rod 16, front rod 15, back link 14 and base 19 mutually hinged formation quadric chains; Wherein, this hydraulic support also is provided with back back timber 4, and back back timber 4 front ends, back timber 3 rear ends and last connecting rod 16 upper ends are hinged through a bearing pin; Be provided with rear column 171 between back back timber 4 middle parts and the base 19, the rear portion of back timber 4 is provided with supporting plate 6 in the back, and supporting plate flexibly connects with the back back timber through the chute that is arranged on the back timber of back; The forward and backward two ends of back slide jack (not drawing among the figure) are connected with supporting plate 6 with back back timber 4 respectively; Slide 24 is located on this supporting plate 6 after said, and slide 24 belows, back are hung with scratch board conveyor, through the very heavy control of back slide; Supporting plate is slided front and back in the back timber of back, drive the back and slip mobile; Base 19 rear ends are hinged with retaining cash seat 13, and retaining cash seat 13 is connected with base 19 through two pin joints, and said reinforcement mechanism is articulated in and keeps off on the cash seat 13.Said reinforcement mechanism comprises that being articulated in going up on the retaining cash seat swings reinforcement mechanism and lower swing reinforcement mechanism; Last swing reinforcement mechanism is located at lower swing reinforcement mechanism top; Last swing reinforcement mechanism comprises balance arm 9, is sheathed on balance arm 9 interior upward swinging rammer cash beam 7, go up balance arm jack 10 and upward swing rammer cash beam jack (not drawing among the figure); Last balance arm jack 10 is articulated between balance arm 9 and the retaining cash seat 13; Last swing rammer cash beam jack is articulated between balance arm 9 and the last swing rammer cash beam 7 and is located in the balance arm 9; The lower swing reinforcement mechanism comprises following balance arm 12, be sheathed on down lower swing in the balance arm rams cash beam 11, balance arm jack 8 and lower swing rammer cash beam jack (not drawing among the figure) down; Following balance arm jack 8 is articulated in down between balance arm 12 and the retaining cash seat 13, and lower swing rammer cash beam jack is articulated in down between balance arm 12 and the lower swing rammer cash beam 11 and is located at down in the balance arm 12.Between the top of back timber 3 and back back timber 4, be provided with rubber-like steel spring plate 22, said steel spring plate 22 1 ends are fixedly connected with back timber 3, and the other end inserts in the groove of a fore-and-aft direction being located at back timber 4 tops, back.Between back timber 3 rear portions and last connecting rod 16 middle parts, also be hinged with a balance jack 18, work as the graceful bearing attitude with adjustment and maintenance top.Said upward connecting rod 16 is to be the employing y-type structure, and last small end and back timber are hinged with the back back timber, and lower end and front rod and back link are hinged, and last connecting rod adopts high strength casing welded construction, has the skylight on the last connecting rod.Last balance arm, go up swing ram the cash beam, down balance arm and lower swing to ram the cash beam be high strength casing welded construction.Said base 19 adopts band gap bridge easy opened high strength casing welded construction, is provided with passing framework 20 between base 19 crotch and passes jack 21, and it is hinged with passing framework 20 to pass jack 21 1 ends, and it is hinged to pass the jack other end and base 19.
Except such scheme, the balance jack between last connecting rod and the back timber also can change into and being located between top beam rear end and the back timber front end bottom, back; Can also go up the I type absolute construction that connecting rod is set to H type structure or is positioned at the left and right sides; At this moment front and rear connecting rods can be set to symmetrical two groups; Every group upper end is hinged with the bottom of last connecting rod one side respectively; Every group lower end respectively and the base both sides between the column be hinged, can realize the convenient purpose that the compacting situation is filled in the goaf of observing equally; Can also be set to directly be fixed on the tail boom by supporting plate; Steel spring plate between the top of back timber and back back timber, this steel spring plate also can the rear end be fixed on the back timber of back, front end be located at the back timber top along in the chute of fore-and-aft direction.
Claims (7)
1. a waste filling support frame comprises wall supporting, back timber, column, four-bar mechanism, base, scratch board conveyor and reinforcement mechanism, and wall supporting is articulated in the back timber front end; Be hinged with the wall supporting jack between wall supporting and the back timber, be hinged with front rod and back link on the base, the upper end of last connecting rod is articulated on the back timber; The mutually hinged formation quadric chain of last connecting rod, front rod, back link and base is characterized in that: this hydraulic support also is provided with the back back timber, and back back timber front end, top beam rear end and last small end are hinged through a bearing pin; Be provided with rear column between back back timber middle part and the base; Be provided with chute at back timber rear portion, back, be provided with the back in this chute and slip along fore-and-aft direction, after the side of sliding down be hung with scratch board conveyor; Be provided with slide jack in back between back slide and the back back timber; Base rear end is hinged with retaining cash seat, and said reinforcement mechanism is articulated on the retaining cash seat, and said reinforcement mechanism comprises that being articulated in going up on the retaining cash seat swings reinforcement mechanism and lower swing reinforcement mechanism; Last swing reinforcement mechanism is located at lower swing reinforcement mechanism top; The swing of going up that last swing reinforcement mechanism comprises balance arm, be sheathed in the balance arm is rammed the cash beam, is gone up the balance arm jack and go up swing and ram cash beam jack, and last balance arm jack is articulated in balance arm and keeps off between the cash seat, and last swing rammer cash beam jack is articulated in balance arm and upward swings between the rammer cash beam; The lower swing reinforcement mechanism comprises following balance arm, be sheathed on down lower swing in the balance arm rams cash beam, balance arm jack and lower swing rammer cash beam jack down; Following balance arm jack is articulated in down between balance arm and the retaining cash seat, and lower swing rams cash beam jack and is articulated in down between balance arm and the lower swing rammer cash beam, between the top of back timber and back back timber, is provided with the rubber-like steel spring plate; This steel spring plate one end is fixed; For slidably connecting, said steel spring plate one end is fixedly connected with back timber the other end along fore-and-aft direction, and the other end inserts in the groove of a fore-and-aft direction being located at back timber top, back.
2. waste filling support frame as claimed in claim 1; It is characterized in that: the rear portion of back timber is provided with supporting plate in the back; Supporting plate flexibly connects with the back back timber through the chute that is arranged on the back timber of back; The forward and backward two ends of back slide jack are connected with supporting plate with the back back timber respectively, and said back slips to be located on this supporting plate.
3. waste filling support frame as claimed in claim 1 is characterized in that: between back timber rear portion and last connecting rod middle part, also be hinged with a balance jack.
4. waste filling support frame as claimed in claim 1 is characterized in that: retaining cash seat is connected with base through two pin joints.
5. waste filling support frame as claimed in claim 1; It is characterized in that: said upward connecting rod is to be the employing y-type structure, and last small end and back timber are hinged with the back back timber, and lower end and front rod and back link are hinged; Last connecting rod adopts high strength casing welded construction, has the skylight on the last connecting rod.
6. waste filling support frame as claimed in claim 1 is characterized in that: go up balance arm, go up swing ram the cash beam, down balance arm and lower swing to ram the cash beam be high strength casing welded construction.
7. waste filling support frame as claimed in claim 1; It is characterized in that: said base adopts band gap bridge easy opened high strength casing welded construction; Be provided with between the base crotch and pass framework and pass jack; It is hinged with the passing framework to pass jack one end, and it is hinged to pass the jack other end and base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010113899A CN102168572B (en) | 2010-02-25 | 2010-02-25 | Waste filling supporting bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010113899A CN102168572B (en) | 2010-02-25 | 2010-02-25 | Waste filling supporting bracket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102168572A CN102168572A (en) | 2011-08-31 |
| CN102168572B true CN102168572B (en) | 2012-10-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010113899A Expired - Fee Related CN102168572B (en) | 2010-02-25 | 2010-02-25 | Waste filling supporting bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102168572B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587975A (en) * | 2012-03-30 | 2012-07-18 | 郑州四维机电设备制造有限公司 | Containing gangue filling and tamping swing beam |
| CN102587977A (en) * | 2012-03-30 | 2012-07-18 | 郑州四维机电设备制造有限公司 | Four-column and double-swing-beam type gangue filling hydraulic support |
| CN102661160A (en) * | 2012-06-04 | 2012-09-12 | 于波 | Two-pillar hidden type filled hydraulic support |
| CN102828762B (en) * | 2012-09-07 | 2015-04-29 | 卡特彼勒（郑州）有限公司 | Backstop gangue beam suspension swinging beam type gangue filing hydraulic support frame with side protection plate |
| CN102979545A (en) * | 2012-12-10 | 2013-03-20 | 中国矿业大学 | Large-mining-height front and rear top beam coaxial articulated fill coal mining hydraulic bracket |
| CN108060922A (en) * | 2018-01-09 | 2018-05-22 | 中国矿业大学 | A kind of exploitation-supporting-transport-filling integration coalcutter and its process for stoping |
| CN109372564A (en) * | 2018-12-10 | 2019-02-22 | 华电郑州机械设计研究院有限公司 | A kind of filling coal mining support apparatus |
| CN110966039B (en) * | 2019-11-20 | 2021-03-09 | 淮南创大实业有限责任公司 | Waste filling tamping device |
| CN110985117B (en) * | 2019-11-20 | 2021-03-09 | 淮南创大实业有限责任公司 | Waste filling tamping device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2921671A1 (en) * | 1979-05-29 | 1980-12-04 | Ruhrkohle Ag | Mine working hydraulic shield support unit - has rear cap extending roof cap and swivelling on backfilling side |
| CN86100268A (en) * | 1986-01-18 | 1987-07-29 | 波尔玛克矿山机械化开发公司科玛克矿山机械化研究中心 | Cap of mine's support |
| CN87104493A (en) * | 1986-05-31 | 1987-12-30 | 维斯特法利亚制铁联合有限公司 | The excavation support that in the supporting of tilting and partly tilt, uses |
| CN2055864U (en) * | 1989-10-20 | 1990-04-11 | 北京矿务局机械设计研究所 | Combined spring |
| CN201262093Y (en) * | 2008-10-08 | 2009-06-24 | 郑州四维机电设备制造有限公司 | Pre/post-positioned caving coal cap stand |
| CN201306176Y (en) * | 2008-12-09 | 2009-09-09 | 郑州四维机电设备制造有限公司 | Filling and supporting hydraulic support with compaction mechanism |
| CN201606097U (en) * | 2010-02-25 | 2010-10-13 | 郑州四维机电设备制造有限公司 | Waste rock filling supporting bracket |
-
2010
- 2010-02-25 CN CN201010113899A patent/CN102168572B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2921671A1 (en) * | 1979-05-29 | 1980-12-04 | Ruhrkohle Ag | Mine working hydraulic shield support unit - has rear cap extending roof cap and swivelling on backfilling side |
| CN86100268A (en) * | 1986-01-18 | 1987-07-29 | 波尔玛克矿山机械化开发公司科玛克矿山机械化研究中心 | Cap of mine's support |
| CN87104493A (en) * | 1986-05-31 | 1987-12-30 | 维斯特法利亚制铁联合有限公司 | The excavation support that in the supporting of tilting and partly tilt, uses |
| CN2055864U (en) * | 1989-10-20 | 1990-04-11 | 北京矿务局机械设计研究所 | Combined spring |
| CN201262093Y (en) * | 2008-10-08 | 2009-06-24 | 郑州四维机电设备制造有限公司 | Pre/post-positioned caving coal cap stand |
| CN201306176Y (en) * | 2008-12-09 | 2009-09-09 | 郑州四维机电设备制造有限公司 | Filling and supporting hydraulic support with compaction mechanism |
| CN201606097U (en) * | 2010-02-25 | 2010-10-13 | 郑州四维机电设备制造有限公司 | Waste rock filling supporting bracket |
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| CN102168572A (en) | 2011-08-31 |
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| C56 | Change in the name or address of the patentee |
Owner name: CATERPILLAR (ZHENGZHOU) CO., LTD. Free format text: FORMER NAME: ZHENGZHOU SIWEI ELECTROMECHANICAL EQUIPMENT MANUFACTURING CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: Wu town Xingyang city Henan province 450103 Zhengzhou city wide road Patentee after: Caterpillar (Zhengzhou) Co., Ltd. Address before: 450001 No. 7 shuttle Road, hi tech Industrial Development Zone, Henan, Zhengzhou Patentee before: Zhengzhou Siwei Electromechanical Equipment Manufacturing Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20210225 |
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| CF01 | Termination of patent right due to non-payment of annual fee |