CN112855237A - A stretching self-adaptation tunnelling supporting device for coal mining rock stratum control - Google Patents
A stretching self-adaptation tunnelling supporting device for coal mining rock stratum control Download PDFInfo
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- CN112855237A CN112855237A CN202110362986.7A CN202110362986A CN112855237A CN 112855237 A CN112855237 A CN 112855237A CN 202110362986 A CN202110362986 A CN 202110362986A CN 112855237 A CN112855237 A CN 112855237A
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- 239000011435 rock Substances 0.000 title claims abstract description 26
- 239000003245 coal Substances 0.000 title claims abstract description 20
- 238000005065 mining Methods 0.000 title claims abstract description 19
- 230000005641 tunneling Effects 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims description 14
- 210000000078 claw Anatomy 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- 230000003044 adaptive effect Effects 0.000 claims description 4
- 239000011440 grout Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000007569 slipcasting Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Piles And Underground Anchors (AREA)
- Supports For Pipes And Cables (AREA)
Abstract
The invention discloses an extension type self-adaptive tunneling support device for controlling a coal mining rock stratum, which comprises a moving seat, a uniform force cylinder, a motor seat, a hydraulic telescopic rod and a top support assembly, wherein the top of the moving seat is positioned and provided with a hydraulic heightening device by adopting a positioning seat, the output end of the hydraulic heightening device is fixedly attached to the uniform force cylinder, the motor seat is fixedly attached to the upper part of the uniform force cylinder, and an auxiliary positioning assembly is fixedly arranged on the motor seat; the positioning end of the auxiliary positioning assembly is hinged with the position, close to the end part, of the hydraulic telescopic rod, one end of the hydraulic telescopic rod is hinged to the motor base, the other end of the hydraulic telescopic rod is hinged with the middle part below the extending arm, and one end of the extending arm is hinged with the top supporting assembly; the bottom of the top supporting assembly is fixed with a supporting arm, the other end of the supporting arm is fixed above the auxiliary positioning assembly, and the top supporting assembly can support and support the top plate and control the top rock stratum.
Description
Technical Field
The invention relates to the technical field of coal mine support, in particular to an extension type self-adaptive tunneling support device for controlling a coal mining rock stratum.
Background
In the coal mining in-process in the pit in order to make things convenient for going on of tunnelling, adopt the supporting device to carry out interim support more, and current supporting device is mostly fixed, it carries out corresponding demolising and removal along with going on of tunnelling, consequently its installation and dismantlement process are comparatively wasted time, the progress of engineering is being influenced, in addition, at the supporting in-process, only adopt support piece to support, the effect is general, and after dismantling, still need further to consolidate the processing to the rock stratum that the roof is weak, it is comparatively loaded down with trivial details, otherwise, along with strutting and going on constantly of exploitation, and along with the crustal motion, the continuous influence of exploitation vibration etc. can lead to the roof rock stratum to appear warping scheduling problem, still can lead to dangers such as collapsing when serious.
Therefore, there is a need for an adaptive extendable excavation support apparatus for coal mining formation control that solves the problems set forth above in the background art.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme: a stretching type self-adaptive tunneling support device for controlling a coal mining rock stratum comprises a moving seat, a uniform force cylinder, a motor seat, a hydraulic telescopic rod and a top support assembly, wherein traveling wheels and hydraulic support legs are symmetrically arranged at the bottom of the moving seat;
the top of the moving seat is positioned by a positioning seat and provided with a hydraulic heightening device, the output end of the hydraulic heightening device is fixedly attached with a force-equalizing cylinder, the force-equalizing cylinder is horizontally arranged, a motor base is fixedly attached above the force-equalizing cylinder, and an auxiliary positioning assembly is fixed on the motor base;
the auxiliary positioning assembly is arranged at the position, close to the end part, of the auxiliary positioning assembly in a hinged mode, one end of the hydraulic telescopic rod is hinged to the motor base, the other end of the hydraulic telescopic rod is hinged to the middle part below the extending arm, one end of the extending arm is hinged to the top supporting assembly, and the extending action of the extending arm can be controlled through the stretching and retracting of the hydraulic telescopic rod;
a supporting arm is fixed at the bottom of the top supporting component, the other end of the supporting arm is fixed above the auxiliary positioning component, and the top supporting component can support and support the top plate and simultaneously control the top rock stratum;
the top support assembly at least comprises a plurality of locking seats capable of accurately positioning and locking the anchor rods, the anchor rods are selectively embedded into the locking seats and are grouting anchor rods, one end of each anchor rod extends into the top rock stratum, and the other end of each anchor rod can be supplied with grout through the grout supply assembly, so that the top rock stratum is reinforced and controlled.
Further, preferably, the top support assembly comprises a sliding sleeve, a locking seat, an anchor rod, cross rods, longitudinal rods and a hinged seat, wherein the cross rods are arranged in parallel at intervals, and the adjacent two cross rods are fixedly connected with each other by adopting a plurality of longitudinal rods arranged at intervals, so that the cross rods and the longitudinal rods form a grid shape, and the length of each cross rod is longer than that of each longitudinal rod;
and, slide at least in every net and set up two the sliding sleeve, one side of sliding sleeve is fixed with two of vertical arranging the locking seat, the locking seat is used for penetrating the stock to lock it.
Further, preferably, the sliding sleeves are all distributed on the cross rod.
Further, as preferred, the sliding sleeve all distributes on the vertical pole.
Further, as preferred, the ladder groove has been seted up in the middle part of the locking seat, the ladder inslot fixed embedding has the locking ring bag that can right the righting ring seat of stock and locking stock, form dentate locking surface on the interior anchor ring face of locking ring bag, just be fixed with the support ring in the locking ring bag, each the locking ring bag all links to each other with outside micro pump station through the thin hose to realize the locking location to the stock through filling hydraulic oil.
Further, as preferred, a plurality of the articulated seat of common fixed connection of one end of horizontal pole, articulated seat is used for articulating with the extending arm mutually, just the bottom of articulated seat links to each other with the support arm, be fixed with a plurality of bracing pieces on the support arm, the other end of bracing piece is fixed to on one of them horizontal pole or the vertical pole.
Preferably, the telescopic arm is slidably provided in the extension arm, and a sliding motion of the telescopic arm is controlled by a telescopic adjustment lever provided inside the telescopic arm.
Further, as preferred, the auxiliary positioning subassembly includes spacing motor, gag lever post, connecting seat and spacing connecting rod, wherein, spacing motor fixes on the motor cabinet, the coaxial lead screw that is fixed with of output of spacing motor, the other end of lead screw rotates and sets up on the connecting seat, the other end and the support arm of connecting seat link to each other, be fixed with a plurality of gag lever posts between connecting seat and the spacing motor, wherein two slide on the gag lever post and be provided with the stop collar, two be connected with the screw seat jointly between the stop collar, on the screw seat transmission connecting seat lead screw, and one of them one side of stop collar articulates there is spacing connecting rod, spacing connecting rod is as the positioning end of auxiliary positioning subassembly and hydraulic telescoping rod and is close to end position department and articulated mutually.
Preferably, the two ends of the hydraulic telescopic rod are respectively fixed with a connecting claw, one of the connecting claws is hinged to the motor base, the other connecting claw is hinged to a connecting seat, and the connecting seat is fixed below the extending arm.
Further, as preferred, supply thick liquid subassembly to include suction tube and suction seat, wherein the one end of suction seat is concave type for the sealed embedding of stock, the other end of suction seat links to each other with the play liquid end of suction pump, the feed liquor end of suction pump adopts the suction tube to be connected to in the samming drum, be filled with the thick liquid in the samming drum, just the samming drum internal rotation is provided with the stirring leaf.
Compared with the prior art, the invention provides an extension type self-adaptive tunneling support device for controlling a coal mining rock stratum, which has the following beneficial effects:
in this device, the top of setting is strutted the subassembly and is included a plurality of locking seats that can pinpoint and lock the stock at least, the selective embedding stock in a plurality of locking seats, the stock is the slip casting stock, its one end stretches into in the top stratum, the other end is supplied the thick liquid by supplying the thick liquid subassembly, thereby realize the reinforcement control to the top stratum, on the one hand, can utilize the latticed of horizontal pole and vertical pole constitution to strut, carry out conventional support to the roof and strut, on the other hand can utilize the stock to the roof again, the place that needs to consolidate carries out the slip casting anchor, strengthened the control to the roof stratum, in addition, the extension of the arm is controlled to the flexible of utilizing hydraulic telescoping rod, and utilize the flexible extension length of adjusting the flexible arm of flexible regulation pole, can adapt to the tunnelling span.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a locking seat according to the present invention;
FIG. 3 is a first schematic structural view of a top support assembly of the present invention;
FIG. 4 is a second schematic structural view of a top bracing assembly of the present invention;
in the figure: 1. a movable seat; 2. positioning seats; 3. a hydraulic height adjuster; 4. a force-equalizing cylinder; 5. a motor base; 6. a limiting motor; 7. a connecting claw; 8. a hydraulic telescopic rod; 9. a connecting seat; 10. an extension arm; 11. a top support assembly; 12. a support arm; 13. a limiting rod; 14. a connecting seat; 15. a limiting connecting rod; 16. a telescopic adjusting rod; 17. a telescopic arm; 18. a sliding sleeve; 19. a locking seat; 20. an anchor rod; 21. a support bar; 22. a suction tube; 23. a suction seat; 24. a traveling wheel; 25. a hydraulic support leg; 26. a stepped groove; 27. a righting ring seat; 28. locking the ring bag; 29. a toothed locking surface; 30. a cavity; 31. a cross bar; 32. a longitudinal bar; 33. a hinged seat.
Detailed Description
Referring to fig. 1 to 4, in the embodiment of the present invention, an extended adaptive tunneling support device for controlling a coal mining rock stratum includes a moving base 1, a uniform force cylinder 4, a motor base 5, a hydraulic telescopic rod 8 and a top support assembly 11, wherein traveling wheels 24 and hydraulic support legs 25 are symmetrically arranged at the bottom of the moving base 1;
the top of the moving seat 1 is positioned and provided with a hydraulic pressure height adjuster 3 by adopting a positioning seat 2, the output end of the hydraulic pressure height adjuster 3 is fixedly attached with a force-equalizing cylinder 4, the force-equalizing cylinder 4 is horizontally arranged, a motor seat 5 is fixedly attached above the force-equalizing cylinder 4, and an auxiliary positioning assembly is fixed on the motor seat 5;
the positioning end of the auxiliary positioning assembly is hinged with a position, close to the end, of a hydraulic telescopic rod 8, one end of the hydraulic telescopic rod 8 is hinged to the motor base 5, the other end of the hydraulic telescopic rod is hinged with the middle part below an extension arm 10, one end of the extension arm 10 is hinged with a top support assembly 11, and the extension action of the extension arm 10 can be controlled through the extension and retraction of the hydraulic telescopic rod 8;
a supporting arm 12 is fixed at the bottom of the top supporting component 11, the other end of the supporting arm 12 is fixed above the auxiliary positioning component, and the top supporting component 11 can support and support the top plate and control the top rock stratum at the same time;
top support subassembly 11 includes a plurality of locking seats 19 that can pinpoint and lock stock 20 at least, and is a plurality of selective embedding stock 20 in the locking seat 19, stock 20 is the slip casting stock, and its one end stretches into in the top stratum, and the other end can be supplied thick liquid by supplying the thick liquid subassembly to the realization is to the reinforcement control of top stratum, and further, partial stock is directly by supplying the thick liquid subassembly to carry out the slip casting after embedding the roof stratum, and selective slip casting can be carried out to another part stock in the later stage, along with adjusting the slip casting scheme according to roof atress condition, has improved control to the stratum.
In this embodiment, as shown in fig. 3, the top support assembly 11 includes a sliding sleeve 18, a locking seat 19, an anchor rod 20, cross rods 31, longitudinal rods 32 and a hinge seat 33, wherein a plurality of the cross rods 31 are arranged in parallel at intervals, and two adjacent cross rods 31 are fixedly connected to each other by a plurality of longitudinal rods 32 arranged at intervals, so that the plurality of cross rods 31 and the plurality of longitudinal rods 32 form a grid shape, and the length of the cross rods 31 is longer than the length of the longitudinal rods 32;
and, slide at least in every net and set up two sliding sleeve 18, one side of sliding sleeve 18 is fixed with two of vertical arrangement locking seat 19, locking seat 19 is used for penetrating stock 20 to lock it, during the implementation, on the one hand, can utilize the latticed of horizontal pole and vertical pole constitution to strut, carries out conventional support to the roof, and on the other hand can utilize the stock again to the roof in, the required reinforced place carries out the slip casting anchor, has strengthened the control to the roof stratum.
In this embodiment, as shown in fig. 3, the sliding sleeves 18 are all distributed on the cross bar 31, and at this time, the sliding sleeves 18 have higher flexibility and can slide, thereby facilitating the realization of accurate grouting.
In another embodiment, as shown in fig. 4, the sliding sleeves 18 are all distributed on the longitudinal rods 32, and at this time, the flexibility of the sliding sleeves 18 is reduced, but the overall stress condition can be improved, and the occurrence of bending of the longitudinal rods 32 is reduced.
In this embodiment, as shown in fig. 2, a stepped groove 26 is formed in the middle of the locking seat 19 in a penetrating manner, a centering ring seat 27 capable of centering the anchor rod 20 and a locking ring bag 28 of the locking anchor rod 20 are fixedly embedded in the stepped groove 26, a toothed locking surface 29 is formed on the inner annular surface of the locking ring bag 28, a support ring is fixed in the locking ring bag 28, and each locking ring bag 28 is connected with an external micro pump station through a thin hose, so that the locking and positioning of the anchor rod are realized through filling hydraulic oil.
In this embodiment, a plurality of one ends of the cross bars 31 are fixedly connected with a hinged seat 33, the hinged seat 33 is used for being hinged with the extending arm 10, the bottom of the hinged seat 33 is connected with the supporting arm 12, the supporting arm 12 is fixed with a plurality of supporting bars 21, the other ends of the supporting bars 21 are fixed to one of the cross bars 31 or the longitudinal bars 32, specifically, when the cross bars are provided with the sliding sleeves 18, the supporting bars 21 are connected to the longitudinal bars 32, and when the longitudinal bars 32 are provided with the sliding sleeves 18, the supporting bars 21 are connected to the cross bars.
In a preferred embodiment, the telescopic arm 17 is slidably provided in the extension arm 10, the sliding motion of the telescopic arm 17 is controlled by a telescopic adjusting rod 16 provided inside the telescopic arm 10, and the device can be adapted to different tunneling spans by extending and retracting the telescopic arm 10.
In this embodiment, as shown in fig. 1, the auxiliary positioning assembly includes a limiting motor 6, a limiting rod 13, a connecting seat 14 and a limiting connecting rod 15, wherein the limiting motor 6 is fixed on the motor seat 5, a lead screw is coaxially fixed at an output end of the limiting motor 6, the other end of the lead screw is rotatably disposed on the connecting seat 14, the other end of the connecting seat 14 is connected to the supporting arm 12, a plurality of limiting rods 13 are fixed between the connecting seat 14 and the limiting motor 6, two of the limiting rods 13 are slidably provided with a limiting sleeve, a nut seat is commonly connected between the two limiting sleeves, the nut seat drives the connecting seat lead screw, one side of one of the limiting sleeves is hinged to a limiting connecting rod 15, the limiting connecting rod 15 is hinged to a position near an end of the hydraulic telescopic rod 8 as a positioning end of the auxiliary positioning assembly, so as to improve a stress condition of the hydraulic telescopic rod 8 through the limiting connecting rod 15, in addition, the limiting connecting rod can be replaced by a steel wire rope.
In this embodiment, the two ends of the hydraulic telescopic rod 8 are both fixed with connecting claws 7, one of the connecting claws 7 is hinged to the motor base 5, the other connecting claw is hinged to a connecting seat 9, and the connecting seat 9 is fixed below the extending arm 10.
In this embodiment, the confession thick liquid subassembly includes suction tube 22 and suction seat 23, wherein the one end of suction seat 23 is concave type for the sealed embedding of stock 20, the other end of suction seat 23 links to each other with the play liquid end of suction pump, the inlet end of suction pump adopts suction tube 22 to be connected to in the samming drum 4, be filled with the thick liquid in the samming drum 4, just the rotation of samming drum 4 is provided with the stirring leaf.
In the concrete implementation, firstly, the hydraulic heightening device 3 is used for adaptively heightening the top supporting assembly 11, thereby realizing the support of the roof main body, and then controlling the extension of the extending arm 10 by utilizing the extension and contraction of the hydraulic telescopic rod 8, and the extension length of the telescopic arm 17 is adjusted by the extension and contraction of the telescopic adjusting rod 16 so as to adapt to the tunneling span, and at the moment, the anchor rod 20 is penetrated into the locking seat 19 corresponding to the weak part of the top plate, after the anchor rod 20 is inserted into the top plate, the locking seat 19 is used for locking, the slurry supply component is used for supplying slurry to the anchor rod 20, the further control to the top plate rock stratum is realized, when the supporting position needs to be changed, the locking of the locking seat 19 to the anchor rod 20 is firstly released, then the telescopic arm 17 and the extending arm 10 are retracted, finally the height of the top support assembly 11 is lowered through the hydraulic heightening device 3, the retraction is completed, and then the support assembly is moved to a position needing to be supported for supporting.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (10)
1. The utility model provides a stretching type self-adaptation tunnelling supporting device for coal mining rock stratum control which characterized in that: the hydraulic support device comprises a moving seat (1), a force-equalizing cylinder (4), a motor seat (5), a hydraulic telescopic rod (8) and a top support assembly (11), wherein traveling wheels (24) and hydraulic support legs (25) are symmetrically arranged at the bottom of the moving seat (1);
the top of the movable base (1) is provided with a hydraulic heightening device (3) in a positioning mode through a positioning base (2), the output end of the hydraulic heightening device (3) is fixedly attached with a force-equalizing cylinder (4), the force-equalizing cylinder (4) is horizontally arranged, a motor base (5) is fixedly attached above the force-equalizing cylinder (4), and an auxiliary positioning assembly is fixedly arranged on the motor base (5);
the positioning end of the auxiliary positioning assembly is hinged with a position, close to the end, of a hydraulic telescopic rod (8), one end of the hydraulic telescopic rod (8) is hinged to a motor base (5), the other end of the hydraulic telescopic rod is hinged with the middle part below an extension arm (10), one end of the extension arm (10) is hinged with a top supporting assembly (11), and the extension action of the extension arm (10) can be controlled through the extension and retraction of the hydraulic telescopic rod (8);
a supporting arm (12) is fixed at the bottom of the top supporting assembly (11), the other end of the supporting arm (12) is fixed above the auxiliary positioning assembly, and the top supporting assembly (11) can realize control over a top rock stratum while supporting and supporting a top plate;
the top support assembly (11) at least comprises a plurality of locking seats (19) capable of accurately positioning and locking anchor rods (20), the locking seats (19) are selectively embedded into the anchor rods (20), the anchor rods (20) are grouting anchor rods, one ends of the anchor rods extend into a top rock stratum, and the other ends of the anchor rods can be supplied with grout through a grout supply assembly, so that the top rock stratum is reinforced and controlled.
2. The extension type self-adaptive tunneling support device for coal mining rock formation control according to claim 1, wherein: the top supporting assembly (11) comprises a sliding sleeve (18), a locking seat (19), anchor rods (20), cross rods (31), longitudinal rods (32) and a hinge seat (33), wherein the cross rods (31) are arranged in parallel at intervals, and the adjacent cross rods (31) are fixedly connected with each other through the longitudinal rods (32) arranged at intervals, so that the cross rods (31) and the longitudinal rods (32) form a grid shape, and the length of the cross rods (31) is longer than that of the longitudinal rods (32);
and, slide at least in every net and set up two sliding sleeve (18), one side of sliding sleeve (18) is fixed with two of vertical arranging locking seat (19), locking seat (19) are used for penetrating stock (20) to lock it.
3. The extension type self-adaptive tunneling support device for coal mining rock formation control according to claim 2, wherein: the sliding sleeves (18) are all distributed on the cross rod (31).
4. The extension type self-adaptive tunneling support device for coal mining rock formation control according to claim 2, wherein: the sliding sleeves (18) are all distributed on the longitudinal rod (32).
5. The extension type self-adaptive tunneling support device for coal mining rock formation control according to claim 2, wherein: locking seat (19) middle part is run through and has been seted up ladder groove (26), ladder groove (26) internal fixation embedding has the locking ring bag (28) of rightting ring seat (27) and locking stock (20) that can right stock (20), form dentate locking face (29) on the interior anchor ring face of locking ring bag (28), just be fixed with the support ring in locking ring bag (28), each locking ring bag (28) all link to each other with outside micro pump station through the thin hose to realize the locking location to the stock through filling hydraulic oil.
6. An extended adaptive tunnelling support device for coal mining formation control as claimed in claim 3 or 4, in which: a plurality of articulated seat (33) of the common fixed connection of one end of horizontal pole (31), articulated seat (33) are used for articulating with extending arm (10) mutually, just the bottom of articulated seat (33) links to each other with support arm (12), be fixed with a plurality of bracing pieces (21) on support arm (12), the other end of bracing piece (21) is fixed to on one of them horizontal pole (31) or vertical pole (32).
7. The extension type self-adaptive tunneling support device for coal mining rock formation control according to claim 1, wherein: the telescopic arm (17) is arranged in the extension arm (10) in a sliding mode, and the sliding motion of the telescopic arm (17) is controlled by a telescopic adjusting rod (16) arranged inside the telescopic arm (10).
8. The extension type self-adaptive tunneling support device for coal mining rock formation control according to claim 1, wherein: the auxiliary positioning component comprises a limiting motor (6), a limiting rod (13), a connecting seat (14) and a limiting connecting rod (15), wherein the limit motor (6) is fixed on the motor base (5), the output end of the limit motor (6) is coaxially fixed with a screw rod, the other end of the screw rod is rotatably arranged on the connecting seat (14), the other end of the connecting seat (14) is connected with the supporting arm (12), a plurality of limiting rods (13) are fixed between the connecting seat (14) and the limiting motor (6), wherein two limiting rods (13) are provided with limiting sleeves in a sliding way, a nut seat is connected between the two limiting sleeves and drives the screw rod of the connecting seat, and one side of one of the limiting sleeves is hinged with a limiting connecting rod (15), and the limiting connecting rod (15) serving as an auxiliary positioning component is hinged with the position, close to the end part, of the hydraulic telescopic rod (8) at the positioning end.
9. The extendable adaptive tunneling support device for coal mining strata control according to claim 8, wherein: the two ends of the hydraulic telescopic rod (8) are respectively fixed with a connecting claw (7), one connecting claw (7) is hinged to the motor base (5), the other connecting claw is hinged to a connecting base (9), and the connecting base (9) is fixed below the extending arm (10).
10. The extension type self-adaptive tunneling support device for coal mining rock formation control according to claim 1, wherein: confession thick liquid subassembly includes suction tube (22) and suction seat (23), wherein the one end of suction seat (23) is concave type for the sealed embedding of stock (20), the other end of suction seat (23) links to each other with the play liquid end of suction pump, the feed liquor end of suction pump adopts suction tube (22) to be connected to in average power drum (4), be filled with the thick liquid in average power drum (4), just the internal rotation of average power drum (4) is provided with the stirring leaf.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110362986.7A CN112855237B (en) | 2021-04-02 | 2021-04-02 | A stretching self-adaptation tunnelling supporting device for coal mining rock stratum control |
| PCT/CN2021/086608 WO2022205499A1 (en) | 2021-04-02 | 2021-04-12 | Extendable adaptive tunneling support apparatus for rock stratum control in coal mining |
| JP2021529696A JP7257709B1 (en) | 2021-04-02 | 2021-04-12 | Telescopic self-adaptive drilling support system for rock formation control during coal mining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110362986.7A CN112855237B (en) | 2021-04-02 | 2021-04-02 | A stretching self-adaptation tunnelling supporting device for coal mining rock stratum control |
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| Publication Number | Publication Date |
|---|---|
| CN112855237A true CN112855237A (en) | 2021-05-28 |
| CN112855237B CN112855237B (en) | 2022-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110362986.7A Active CN112855237B (en) | 2021-04-02 | 2021-04-02 | A stretching self-adaptation tunnelling supporting device for coal mining rock stratum control |
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| Country | Link |
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| JP (1) | JP7257709B1 (en) |
| CN (1) | CN112855237B (en) |
| WO (1) | WO2022205499A1 (en) |
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| CN115354974A (en) * | 2022-10-21 | 2022-11-18 | 济宁矿业集团有限公司 | Anchor cable drilling machine support for coal mine roadway support |
| CN117248950B (en) * | 2023-10-17 | 2024-04-12 | 合肥合安智为科技有限公司 | Closed dust control and collection device of hydraulic support |
| CN117108827B (en) * | 2023-10-18 | 2024-01-09 | 浙江浙能迈领环境科技有限公司 | LNG ship filling device and filling method |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP7257709B1 (en) | 2023-04-14 |
| WO2022205499A1 (en) | 2022-10-06 |
| CN112855237B (en) | 2022-02-25 |
| JP2023517152A (en) | 2023-04-24 |
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