CN210087363U

CN210087363U - Detachable top beam hydraulic support for coal mine

Info

Publication number: CN210087363U
Application number: CN201920863792.3U
Authority: CN
Inventors: 孙宇; 张旭; 杨瑶
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-10
Filing date: 2019-06-10
Publication date: 2020-02-18
Anticipated expiration: 2029-06-10

Abstract

The utility model relates to the technical field of supports, and a coal mine is with dismantled and assembled back timber hydraulic support is disclosed, including pneumatic cylinder, back timber, base, bracing piece, left baffle and right baffle, the top of base be provided with many a plurality of fixed orificess corresponding in position of pneumatic cylinder for with the bottom mounting of pneumatic cylinder in the fixed orifices, the symmetry is provided with a plurality of connection platforms, many on the middle part outer wall of pneumatic cylinder the top and a plurality of bracing piece connect platform rotatable coupling. This dismountable back timber hydraulic support for coal mine, bottom and the fixed orifices cooperation through the pneumatic cylinder, the top and the mating holes cooperation of pneumatic cylinder, bracing piece and pneumatic cylinder rotatable coupling, the bracing piece can be dismantled with the base and be connected, the back timber respectively with left baffle and right baffle overlap joint, can dismantle pneumatic cylinder, base, back timber, left baffle and right baffle one by one and install, realized the purpose of the dismouting combination of being convenient for of hydraulic support.

Description

Detachable top beam hydraulic support for coal mine

Technical Field

The utility model relates to the technical field of supports, specifically be a colliery is with dismantled and assembled back timber hydraulic support.

Background

The hydraulic support is a hydraulic power device which generates supporting force by utilizing liquid pressure and realizes automatic movement to support and manage a top plate, and is indispensable corollary equipment for comprehensive mechanized coal mining; when the existing hydraulic cylinder is used, the bottom end of the hydraulic cylinder is supported on the ground, then the hydraulic cylinder is jacked, and a top beam at the top end of the hydraulic cylinder is jacked up and supported at the top of a roadway; the existing hydraulic support is found when in use, when the hydraulic support is supported in a roadway, because the top of the roadway has uncertainty to the pressure direction of the top beam and the stress area of the bottom end of the hydraulic cylinder is small, the pressure to the ground is large, the hydraulic cylinder is directly supported on the ground to easily topple and sink into the ground, and the side of the roadway is not effectively supported, so that the possibility of side collapse is high, in addition, the existing hydraulic support is connected in a welding mode in an excessive manner, and the hydraulic support is not convenient to disassemble and assemble in the using process.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a colliery is with dismantled and assembled back timber hydraulic support has solved and has taken place easily and empty and be absorbed in ground, can not prevent that the tunnel side from collapsing, the problem of the dismouting combination of not being convenient for.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a dismountable top beam hydraulic support for coal mines comprises a hydraulic cylinder, a top beam, a base, supporting rods, a left baffle and a right baffle, wherein a plurality of fixing holes corresponding to the positions of a plurality of hydraulic cylinders are formed in the top end of the base and used for fixing the bottom ends of the hydraulic cylinders in the fixing holes, a plurality of connecting tables are symmetrically arranged on the outer wall of the middle of the hydraulic cylinder, the top ends of a plurality of supporting rods are rotatably connected with the plurality of connecting tables, the bottom ends of the plurality of supporting rods are detachably connected with the top end of the base, a plurality of matching holes corresponding to the positions of a plurality of hydraulic cylinders are formed in the bottom end of the top beam and used for fixing the top ends of the hydraulic cylinders in the matching holes, the top of the right end of the left baffle is connected with the left end of the top beam, a left connecting cavity is formed in the upper left corner of the top beam, the top of left side baffle be provided with left overlap joint roof beam overlap joint complex left baffle hasp, the left end top of right side baffle with the right-hand member of back timber is connected, the upper right corner of back timber is provided with the right side and connects the chamber, the bottom right part that the chamber is connected on the right side is provided with right overlap joint roof beam, the top of right side baffle be provided with right overlap joint roof beam overlap joint complex right baffle hasp, the inside of left side baffle all is provided with the holding chamber with the inside of right baffle, the bottom middle part of left side baffle with the bottom middle part of right baffle all is provided with flexible groove, the inside in holding chamber is provided with the expansion plate, the expansion plate from top to bottom passes flexible groove and extend to the bottom external world in flexible groove, the top of expansion plate is provided with the dog.

Preferably, the diameter of the stopper is larger than the bore diameter of the telescopic slot.

Preferably, the bottom end of the expansion plate extends to the bottom end of the base.

Preferably, the connecting table is connected with the supporting rod through a hinge.

Preferably, the length of the accommodating cavity is smaller than that of the expansion plate.

Preferably, the included angle between the bottom end of the supporting rod and the top end of the base is 40-70 degrees.

Preferably, the number of the hydraulic cylinders is more than or equal to four, and the number of the support rods is correspondingly set to be more than or equal to sixteen.

Preferably, the bottom end of the supporting rod is connected with the top end of the base through threads.

(III) advantageous effects

Compared with the prior art, the utility model provides a colliery is with dismantled and assembled back timber hydraulic support possesses following beneficial effect:

the detachable top beam hydraulic support for the coal mine has the advantages that the hydraulic cylinder is fixed at the top end of the base through the support rod and the fixing hole, the stress area at the lower end of the whole body is increased, the pressure on the ground is reduced, the possibility that the hydraulic support falls down and falls into the ground is reduced, the left baffle and the right baffle are respectively connected through the left end and the right end of the top beam, meanwhile, the left baffle and the right baffle can respectively extend out of the telescopic plate to block the whole side surface from the top beam to the base, so that the possibility of collapse of the side surface of the roadway is reduced, the bottom end of the hydraulic cylinder is matched with the fixing hole, the top end of the hydraulic cylinder is matched with the matching hole, the support rod is rotatably connected with the hydraulic cylinder, the support rod is detachably connected with the base, the top beam is respectively lapped with the left baffle and the right baffle, the hydraulic cylinder, the base, the top beam, the left baffle and the right baffle can be detached and installed one by one, and the purpose that the hydraulic support is convenient to detach and assemble is achieved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1;

in the figure: 1. a hydraulic cylinder; 2. a top beam; 3. a base; 4. a support bar; 5. a left baffle; 6. a right baffle; 7. a fixing hole; 8. a connecting table; 9. a mating hole; 10. a left connecting cavity; 11. a left lap beam; 12. hooking the left baffle plate; 13. a right connecting cavity; 14. a right lap beam; 15. hooking the right baffle; 16. an accommodating cavity; 17. a telescopic groove; 18. a retractable plate; 19. a stopper; 20. and (4) a hinge.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a coal mine detachable top beam hydraulic support comprises a hydraulic cylinder 1, a top beam 2, a base 3, support rods 4, a left baffle 5 and a right baffle 6, wherein the top end of the base 3 is provided with a plurality of fixing holes 7 corresponding to the positions of a plurality of hydraulic cylinders 1 and used for fixing the bottom ends of the hydraulic cylinders 1 in the fixing holes 7, the hydraulic cylinders 1 are vertically fixed at the top end of the base 3 through the fixing holes 7, a plurality of connecting platforms 8 are symmetrically arranged on the outer wall of the middle part of the hydraulic cylinder 1, the top ends of the plurality of support rods 4 are rotatably connected with the plurality of connecting platforms 8, as shown in the specific embodiment 1, the rotatable connecting mode is a hinge 20, the occupied space after detachment can be saved by connecting the support rods 4 with the hydraulic cylinders 1 through the hinges 20, the bottom ends of the plurality of support rods 4 are detachably connected with the top end of the base 3, as shown in the specific embodiment, the hydraulic cylinder 1 and the base 3 are detachably mounted through threaded connection, the bottom end of the top beam 2 is provided with a plurality of matching holes 9 corresponding to the positions of the hydraulic cylinders 1 and used for fixing the top ends of the hydraulic cylinders 1 in the matching holes 9, the hydraulic cylinders 1 are vertically fixed at the bottom end of the top beam 2 through the matching holes 9, the top of the right end of the left baffle plate 5 is connected with the left end of the top beam 2, the upper left corner of the top beam 2 is provided with a left connecting cavity 10, the left part of the bottom end of the left connecting cavity 10 is provided with a left overlapping beam 11, the top end of the left baffle plate 5 is provided with a left baffle plate hook 12 capable of being in overlapping fit with the left overlapping beam 11, the left baffle plate 5 is connected at the left end of the top beam 2 through the left baffle plate hook 12 being matched with the left overlapping beam 11, the top of the left end of the right baffle plate 6 is connected with the right end of the top beam 2, the, the top end of the right baffle 6 is provided with a right baffle hook 15 which can be in lap joint with the right lap joint beam 14, the right baffle hook 15 is matched with the right lap joint beam 14, the right baffle 6 is connected at the right end of the top beam 2, the inside of the left baffle 5 and the inside of the right baffle 6 are both provided with an accommodating cavity 16, the bottom middle part of the left baffle 5 and the bottom middle part of the right baffle 6 are both provided with a telescopic groove 17, the inside of the accommodating cavity 16 is provided with a telescopic plate 18, the telescopic plate 18 passes through the telescopic groove 17 from top to bottom and extends to the outside of the bottom end of the telescopic groove 17, through the accommodating cavity 16, the telescopic groove 17 and the telescopic plate 18 are arranged in a matched mode, the side surface of the roadway can be effectively supported, the top end of the telescopic plate 18 is provided with a stop block 19, and the telescopic plate 18 is effectively prevented from; the hydraulic cylinder 1 is fixed on the top end of the base 3 through the support rod 4 and the fixing hole 7, the stress area of the lower end of the whole body is increased, the pressure on the ground is reduced, the possibility that the hydraulic support falls down and sinks into the ground is reduced, the left baffle 5 and the right baffle 6 which are respectively connected with the left end and the right end of the top beam 2 are used, meanwhile, the left baffle 5 and the right baffle 6 can respectively extend out of the expansion plate 18 to block the whole side surface from the top beam 2 to the base 3, the possibility that the side surface of a roadway collapses is reduced, the bottom end of the hydraulic cylinder 1 is matched with the fixing hole 7, the top end of the hydraulic cylinder 1 is matched with the matching hole 9, the support rod 4 is rotatably connected with the hydraulic cylinder 1, the support rod 4 is in threaded connection with the base 3, the top beam 2 is respectively lapped with the left baffle 5 and the right baffle 6, the hydraulic cylinder 1, the base 3, the purpose of hydraulic support dismouting combination of being convenient for has been realized, and the diameter of dog 19 is greater than the aperture of flexible groove 17, and dog 19 through the diameter is greater than the aperture of flexible groove 17, can effectually prevent that expansion plate 18 from falling out outside holding chamber 16 to strengthened the stability that supports the lateral wall, the bottom of expansion plate 18 extends to the top lower part of base 3, through extending to base 3's bottom with expansion plate 18, has strengthened the intensity that supports the tunnel side. The connecting table 8 is connected with the supporting rod 4 through a hinge 20, the connecting table 8 is connected with the supporting rod 4 through the hinge 20, so that the transportation space is saved when the whole body is disassembled, the length of the accommodating cavity 16 is smaller than that of the expansion plate 18, the expansion plate 18 with the length longer than that of the accommodating cavity 16 prevents the expansion plate 18 from being clamped in the accommodating cavity 16, the stability of the whole work is improved, the included angle between the bottom end of the supporting rod 4 and the top end of the base 3 is 40-70 degrees, the supporting effect of the supporting rod 4 is improved through the inclined plane support of the supporting rod 4 and the base 3, the number of the hydraulic cylinders 1 is more than or equal to four, the number of the supporting rods 4 is correspondingly more than or equal to sixteen, the stability of the whole support is effectively improved through the arrangement of four or more than four cylinders and sixteen or more than supporting rods 4, and the bottom ends of the, the bottom end of the supporting rod 4 is connected to the top end of the base 3 in a screw mounting mode, so that the whole assembling and disassembling process is more convenient.

When using, install pneumatic cylinder 1 in

fixed orifices

7, 4 spiro couplings of bracing piece are on the top of base 3, then install back timber 2 on the top of pneumatic cylinder 1 through mating holes 9, with left baffle 5 overlap joint on left overlap joint roof beam 11, right baffle 6 overlap joint is on right overlap joint roof beam 14, fill liquid to many pneumatic cylinders 1 interior high pressure simultaneously, pneumatic cylinder 1 will promote back timber 2 to rise until back timber 2 top tight tunnel top, simultaneously the expansion plate 18 in the holding chamber 16 is stretched out outside holding chamber 16 by gravity, accomplish the shoring work, when not needing, unload the high-pressure liquid in the pneumatic cylinder 1, back timber 2 will descend along with pneumatic cylinder 1, after the complete pressure release, reverse order unpack apart each part can.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a colliery is with dismantled and assembled back timber hydraulic support, includes pneumatic cylinder (1), back timber (2), base (3), bracing piece (4), left baffle (5) and right baffle (6), its characterized in that: the top of base (3) is provided with a plurality of fixed orificess (7) corresponding with the position of many pneumatic cylinder (1) for with the bottom mounting of pneumatic cylinder (1) in fixed orificess (7), the symmetry is provided with a plurality of connection platform (8) on the middle part outer wall of pneumatic cylinder (1), many the top and a plurality of bracing piece (4) be connected platform (8) rotatable coupling, and many the bottom of bracing piece (4) can be dismantled with the top of base (3) and be connected, the bottom of back timber (2) is provided with a plurality of mating holes (9) corresponding with the position of many pneumatic cylinder (1) for fix the top of pneumatic cylinder (1) in mating holes (9), the right-hand member top of left baffle (5) with the left end of back timber (2) is connected, the upper left corner of back timber (2) is provided with left side connection chamber (10), the bottom left part of the left connecting cavity (10) is provided with a left overlapping beam (11), the top end of the left baffle (5) is provided with a left baffle hook (12) which can be in overlapping fit with the left overlapping beam (11), the left end top of the right baffle (6) is connected with the right end of the top beam (2), the upper right corner of the top beam (2) is provided with a right connecting cavity (13), the bottom right part of the right connecting cavity (13) is provided with a right overlapping beam (14), the top end of the right baffle (6) is provided with a right baffle hook (15) which can be in overlapping fit with the right overlapping beam (14), the inside of the left baffle (5) and the inside of the right baffle (6) are both provided with a containing cavity (16), the bottom middle part of the left baffle (5) and the bottom middle part of the right baffle (6) are both provided with a telescopic groove (17), the inside of the containing cavity (16) is provided with a telescopic plate (18), the expansion plate (18) penetrates through the expansion groove (17) from top to bottom and extends to the outside of the bottom end of the expansion groove (17), and a stop block (19) is arranged at the top end of the expansion plate (18).

2. The coal mine removable top beam hydraulic support as set forth in claim 1, wherein: the diameter of the stop block (19) is larger than the aperture of the telescopic groove (17).

3. The coal mine removable top beam hydraulic support as set forth in claim 1, wherein: the bottom end of the expansion plate (18) extends to the bottom end of the base (3).

4. The coal mine removable top beam hydraulic support as set forth in claim 1, wherein: the connecting table (8) is connected with the supporting rod (4) through a hinge (20).

5. The coal mine removable top beam hydraulic support as set forth in claim 1, wherein: the length of the accommodating cavity (16) is smaller than that of the expansion plate (18).

6. The coal mine removable top beam hydraulic support as set forth in claim 1, wherein: the included angle between the bottom end of the supporting rod (4) and the top end of the base (3) is 40-70 degrees.

7. The coal mine removable top beam hydraulic support as set forth in claim 1, wherein: the number of the hydraulic cylinders (1) is more than or equal to four, and the number of the support rods (4) is correspondingly set to be more than or equal to sixteen.

8. The coal mine removable top beam hydraulic support as set forth in claim 1, wherein: the bottom end of the supporting rod (4) is connected with the top end of the base (3) through threads.