CN117418873A - Temporary reinforcing and supporting device for coal mine tunnel in coal mining tunneling - Google Patents

Abstract

The invention relates to the field of coal mining, and discloses a temporary reinforcement supporting device for a coal mine tunnel in tunneling of coal mining, which comprises two groups of bearing devices and a suspension type conveying device, wherein the two groups of bearing devices are spliced to form a door, each group of bearing devices comprises a support lower column, a limit frame, a support upper column, a top beam and a supporting rod, the limit frame is fixed on the outer side of the top of the support lower column, a chute matched with the outline of the support upper column is processed on the top of the support lower column, a bearing assembly is arranged below the limit frame, the top of the support upper column is provided with the top beam, one end of the top beam, far away from the support upper column, is provided with a suspension caliper, the suspension type conveying device is detachably arranged on the lower part of the suspension caliper, and a detachable vault is arranged above the top beam. The supporting device of the temporary channel which can not fold the material to be conveyed can be formed between the permanent roadway and the working space by arranging the door-shaped bearing device and matching with the hanging type conveying device, and the channel is convenient to move and fold and unfold.

Description

Temporary reinforcing and supporting device for coal mine tunnel in coal mining tunneling

Technical Field

The invention relates to the field of coal mining, in particular to a temporary reinforcing and supporting device for a coal mine tunnel in coal mining tunneling.

Background

The coal mine safety excavation mode is divided into an underground coal mine and an open pit coal mine, most of the coal mines are far away from the ground, so that the coal mines are excavated to underground excavation roadways, the roadways are used as main channels in the underground coal mining process, the roadways are generally formed through the excavation mode, in the construction process of the roadways, the tops of the roadways can bear large soil pressure due to the fact that the tops of the roadways are hollow after excavation, the inner walls of the roadways are required to be reinforced timely after excavation, and meanwhile, supporting devices are matched to support the inner walls, so that the roadway is convenient to maintain to the specified use strength, and the existing roadway supporting devices have the defects that: 1. the existing temporary support of the roadway can block the roadway, so that the conveying of engineering equipment is inconvenient, and the excavation progress of the roadway is affected; 2. the existing temporary support has large volume and is inconvenient to move in a narrow roadway; 3. the existing temporary support has long assembly period, and workers need to waste more time to disassemble and assemble the temporary support. In addition, the existing roadway support is used as a temporary channel for the reserved roadway and the working space, and the conventional roadway support also needs to have a conveying function for the reserved roadway so as to ensure normal tunneling of the roadway, and the conventional temporary support cannot meet the requirement.

Disclosure of Invention

The invention aims to solve the problems in the background technology and provides a temporary reinforcing and supporting device for a coal mine tunnel in coal mining and tunneling.

The invention aims at realizing the following technical scheme:

the utility model provides a colliery tunnel in colliery exploitation drivage consolidates strutting arrangement temporarily, includes load-bearing device and suspension type conveyor, the load-bearing device has two sets of, is the door-type after two sets of load-bearing devices splice, and every set of load-bearing device all includes support down post, spacing frame, support up post, back timber and vaulting pole, spacing frame is fixed in the support down post top outside, supports down post top processing have with support up post profile adaptation spout, be equipped with the lead screw riser of adjusting the position of support up post in the spout in the spacing frame, the inboard below of spacing frame is equipped with the bearing component that can stretch into in the spout, the back timber is installed to support up post top, processing has the installation flange on the support up post lateral wall of back timber below, install the vaulting pole that supports the back timber between installation flange and the back timber, the back timber is kept away from support up post one end and is installed and is hung the elevator, suspension elevator detachably installs in the elevator lower part, and the back timber of two sets of load-bearing device installs detachable vault relatively above the back timber.

And a bottom plate is processed at the bottom of the lower support column.

The sliding chute is cross, the bottom of support upper column is cross, processing has the rack with screw riser profile adaptation on the lateral wall of support upper column, bearing assembly aligns with the sliding chute, bearing assembly includes base plate, back shaft, cushion and spring, the base plate is vertical installs in spacing frame below, and processing has a row of through-hole along the direction of height on the base plate, the back shaft horizontal installation is in every through-hole, and the back shaft is close to spout one end and installs the cushion with the adaptation of spout profile, the spring suit is on the back shaft between cushion and base plate to promote the cushion to the spout in, all processing has the slider on every cushion, the bottom processing of support upper column has the wedge of outwards pulling out the slider, and wedge rear side processing has the slide rail.

The suspension clamp comprises a suspender, a limiting disc, fixing clamps, clamping hooks and a reset spring, wherein the suspender is arranged on a top beam through a universal connecting rod, the limiting disc is arranged below the suspender, the fixing clamps are movably arranged on the suspender below the limiting disc and are of inverted U shape, the clamping hooks are hinged on the inner walls of the two sides of the fixing clamps, the tops of the clamping hooks and the bottoms of the suspender are connected with the pull rod, and the reset spring for pushing the fixing clamps to descend is arranged between the limiting disc and the fixing clamps.

And a detachable hook is arranged below the fixing clamp.

The arch crown comprises an arch beam, an elastic beam, protection plates and inclined supporting rods, wherein the arch beam is arc-shaped, connecting plates connected with top beams are processed at two ends of the arch beam, the length of the elastic beam is larger than that of the arch beam, two ends of the elastic beam are connected with two ends of the arch beam, the protection plates are mounted at the top of the elastic beam, and a plurality of inclined supporting rods connected with the protection plates are mounted on side walls of two sides of the arch beam.

The hanging type conveying device comprises a door-shaped bending track and a hook wheel chain capable of moving in the bending track, wherein a plurality of moving wheels are uniformly arranged on the hook wheel chain, and clamping grooves matched with the clamping hook are formed in the top of the bending track.

The temporary reinforcing and supporting device for the coal mine tunnel in the coal mine exploitation tunneling has the beneficial effects that:

(1) The supporting device of the temporary channel which can not fold the material to be conveyed can be formed between the permanent roadway and the working space by arranging the portal bearing device and matching with the hanging type conveying device, the channel is convenient to move and fold and unfold, and in addition, the supporting device has high structural strength and can ensure the stability of the support;

(2) Through setting up the support lower column and the support upper column of mutual adaptation, under the effect of spacing frame, can adapt to the roadway of different altitudes and use, the bearing assembly who installs on the spacing frame simultaneously can fill up the clearance between support lower column and the support upper column to improve the stability of load-bearing device resistance to compression;

(3) The wedge blocks and the sliding rails are arranged at the bottom of the upper support column, so that the cushion blocks can be controlled to move along with the lifting of the upper support column, and the bearing strength and the mounting speed of the bearing device can be greatly improved;

(4) The suspension calipers are arranged, so that the suspension type conveying device can be quickly fixed and loosened, the replacement efficiency is improved, in addition, the bearing device can be installed on the suspension type conveying device for transferring through the hooks, the moving efficiency of the supporting device can be improved, and the labor intensity of workers can be reduced;

(5) The detachable vault is arranged, so that the volume of the suspension type conveying device can be effectively reduced, and meanwhile, the vault can block sand and gravel collapsed in the temporary roadway so as to protect the safety of the temporary roadway;

(6) Through setting up suspension type conveyor, can avoid interim tunnel to cause the damage that conveying equipment and raw materials in-process caused because of the vibration range is big because of ground unevenness, suspension type conveyor can also make things convenient for the transportation of equipment simultaneously.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a structure according to an embodiment of the present invention

FIG. 2 is a schematic cross-sectional view of the structure of line A-A in FIG. 1.

FIG. 3 is a schematic cross-sectional view of the line B-B in FIG. 2.

Fig. 4 is a schematic diagram of an open structure of a suspension clamp according to an embodiment of the present invention.

Fig. 5 is a schematic view of a closed structure of a suspension clamp according to an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a dome according to an embodiment of the present invention.

Fig. 7 is a schematic cross-sectional profile of a suspended conveying device according to an embodiment of the present invention.

Fig. 8 is a schematic structural diagram of a curved track according to an embodiment of the present invention.

Fig. 9 is a schematic structural view of a hook wheel chain according to an embodiment of the present invention.

Fig. 10 is a schematic view of a usage state according to an embodiment of the present invention.

Reference numerals: 1. a load bearing device; 101. supporting the lower column; 102. a limit frame; 103. supporting an upper column; 104. a top beam; 105. a brace rod; 106. a chute; 107. a rack; 108. a screw lifter; 109. installing a convex edge; 110. a bottom plate; 111. a wedge; 112. a slide rail; 2. a load bearing assembly; 21. a substrate; 22. a support shaft; 23. a cushion block; 24. a spring; 25. a through hole; 26. a slide block; 3. a suspension caliper; 31. a boom; 32. a limiting disc; 33. a fixing clip; 34. a hook; 35. a reset spring; 36. a hook; 37. a pull rod; 4. a vault; 41. arched beams; 42. an elastic beam; 43. a protection plate; 44. a diagonal brace; 45. a connecting plate; 5. a hanging type conveying device; 51. bending the track; 52. a hook wheel chain; 53. a travelling wheel; 54. a clamping groove.

Detailed Description

Examples

As shown in fig. 1 to 10, the temporary reinforcement support device for a coal mine tunnel in the coal mine exploitation tunneling provided by the embodiment comprises two groups of bearing devices 1 and a suspension type conveying device 5, wherein the two groups of bearing devices 1 are spliced to form a door-shaped structure, the two groups of bearing devices 1 are spliced to adapt to the contour of the tunnel, so that the tunnel can be supported, the material transfer and soil outgoing at the tunneling space can be ensured, the tunneling progress of the coal mine tunnel can be ensured, each group of bearing devices 1 comprises a support lower column 101, a limiting frame 102, a support upper column 103, a top beam 104 and a supporting rod 105, the limiting frame 102 is fixed on the outer side of the top of the support lower column 101, a sliding groove 106 matched with the contour of the support upper column 103 is processed on the top of the support lower column 101, a lead screw lifter 108 for adjusting the position of the support upper column 103 in the sliding groove 106 is arranged in the limiting frame 102, the extending distance of the support upper column 103 can be adjusted through the lead screw lifter 108, the height change of the tunnel can be adapted, meanwhile, the top beam 101 and the support upper column 103 can be supported, so that the tunnel can be lifted, the stability of the top beam 103 can be ensured, the top beam 103 can be provided, the top beam 102 can be installed on the inner side of the support upper column 103, the supporting column 103 can be provided with a supporting clamp 103, the top beam 104 can be installed on the side of the upper column 103, the upper column 103 and the upper supporting column 103 can be installed on the side of the support column 2, the top carrier is provided with a supporting column 104, the top end 2 is provided with a supporting clamp 2, the top end and a position-shaped support element, and a position-shaped structure, and a position element, and a position-shaped device, and a position. Under the effect of brace 105, constitute triangle bearing structure with support upper prop 103, back timber 104, can effectively improve the effect that load-bearing device 1 supported to guarantee the stability when hanging conveyor 5 transported materials, back timber 104 of two sets of load-bearing devices 1 sets up relatively, and detachable vault 4 is installed to back timber 104 top, and vault 4 is used for laminating the top in tunnel, can block the grit that temporary tunnel subsided, in order to protect the safety in temporary tunnel, simultaneously, vault 4 has good compressive effect, thereby improves the safety in tunnel.

In order to improve the stability of the support of the bearing device 1, as shown in fig. 1 to 3, a bottom plate 110 is machined at the bottom of the lower support column 101, the bottom plate 110 can increase the contact area between the lower support column 101 and the ground, and the situation that the upper part of the bearing device 1 is stressed to press the lower support column 101 into the ground is avoided, so that the effective area of a roadway can be compressed, and the feeding height of the suspended conveying device 5 can be reduced after the lower support column 101 is pressed into the ground, thereby influencing the normal conveying of materials.

In order to conveniently control the height of the bearing device 1, as shown in fig. 1-3, the sliding groove 106 is in a cross shape, the bottom of the upper support column 103 is in a cross shape, a rack 107 matched with the outline of the screw rod lifter 108 is processed on the side wall of the upper support column 103, the screw rod lifter 108 is meshed with the rack 107 when rotating, thereby pushing the rack 107 to extend or retract, the bearing component 2 is aligned with the sliding groove 106, the bearing component 2 comprises a base plate 21, a support shaft 22, a cushion block 23 and a spring 24, the base plate 21 is vertically arranged below the limiting frame 102, a row of through holes 25 are processed on the base plate 21 along the height direction, the support shaft 22 is horizontally arranged in each through hole 25, one end of the support shaft 22 close to the sliding groove 106 is provided with the cushion block 23 matched with the outline of the sliding groove 106, the springs 24 are sleeved on the supporting shafts 22 between the cushion blocks 23 and the base plate 21, the cushion blocks 23 are pushed into the sliding grooves 106, a sliding block 26 is processed on each cushion block 23, wedges 111 which outwards pull out the sliding blocks 26 are processed at the bottoms of the upper supporting columns 103, sliding rails 112 are processed at the rear sides of the wedges 111, when the upper supporting columns 103 ascend, the sliding blocks 26 move from the sliding rails 112 to the wedges 111 and are separated from the wedges 111, at the moment, under the action of the springs 24, the supporting shafts 22 move towards the sliding grooves 106, and the cushion blocks 23 on the supporting shafts 22 are overlapped and stacked below the upper supporting columns 103.

In order to facilitate the installation of the suspension type conveying device 5, as shown in fig. 4 and 5, the suspension clamp 3 comprises a suspension rod 31, a limit disc 32, a fixing clamp 33, a clamp hook 34 and a reset spring 35, the suspension rod 31 is installed on a top beam 104 through a universal connecting rod, the limit disc 32 is installed below the suspension rod 31, the fixing clamp 33 is movably installed on the suspension rod 31 below the limit disc 32, the fixing clamp 33 is in an inverted U shape, the clamp hooks 34 are hinged on the inner walls of the two sides of the fixing clamp 33, the top of the clamp hook 34 and the bottom of the suspension rod 31 are connected with a pull rod 36, the reset spring 35 for pushing the fixing clamp 33 to descend is installed between the limit disc 32 and the fixing clamp 33, when the reset spring 35 is not stressed, the limit disc 32 and the fixing clamp 33 descend along the suspension rod 31, at the moment, the clamp hook 34 rotates along the hinging point with the fixing clamp 33 under the support of the pull rod 36, the clamp hook 34 is folded, and finally the two clamp hooks 34 and the fixing clamp 33 form point fixing, thereby ensuring the installation stability of the suspension type conveying device 5.

In addition, in order to conveniently move the bearing device 1, a detachable hook is installed below the fixing clip 33, and the hook can be hung on the hanging type conveying device 5, and the hanging type conveying device 5 is utilized to convey the bearing device 1 to the action space or outwards, so that the conveying efficiency is improved, and the labor intensity in the conveying process is reduced.

In order to avoid the security accident that the tunnel collapses and causes, as shown in fig. 6, vault 4 includes arched girder 41, elastic beam 42, guard plate 43 and diagonal brace 44, arched girder 41 is convex, and the processing of arched girder 41 both ends has the connecting plate 45 of being connected with back timber 104, the length of elastic beam 42 is greater than the length of arched girder 41, and elastic beam 42 both ends are connected with the both ends of arched girder 41, through elastic beam 42 and arched girder 41, can play dual support's effect to improve the anti effect of collapsing in tunnel, in addition, guard plate 43 is installed at elastic beam 42 top, install a plurality of diagonal brace 44 that are connected with guard plate 43 on the lateral wall of arched girder 41 both sides, and guard plate 43 can prevent rubble, earth drop, and in the in-process of large-scale tunnel collapse, diagonal brace 44 of adjacent load bearing device 1 mutually support guard plate 43, can the very big improvement temporary tunnel's stability, has further guaranteed the safety of constructor in the working space.

In order to facilitate the material conveying, as shown in fig. 7 to 9, the hanging type conveying device 5 comprises a door-shaped curved track 51 and a hook wheel chain 52 capable of moving in the curved track 51, wherein a plurality of moving wheels 53 are uniformly arranged on the hook wheel chain 52, a clamping groove 54 matched with the outline of the clamping hook 34 is formed in the top of the curved track 51, the clamping groove 54 is matched with the clamping hook 34 on the hanging clamp 3, and the top of the curved track 51 is supported by the limiting disc 32 and used for hooking the hanging type conveying chain. In addition, compared with the traditional ground track, the suspended conveying chain can prevent the damage of the channel caused by the subsidence of the ground, and when a large volume of materials are conveyed, the roadway can be widened by digging underground, and the traditional ground track cannot perform the operation. The curved track 51 and the hook wheel chain 52 are similar to the structure of the existing track conveyance, and only their shapes are adjusted to a shape that can be easily fitted with the swing ticket clamp 3.

The application method of the invention is as follows:

deployment of the temporary reinforcement support device: the method comprises the steps of firstly excavating a roadway to the ground, installing bearing devices 1 on two sides of the roadway along with tunneling of the roadway, vertically placing support columns on two sides of the roadway during installation, then rotating screw lifters to enable a support upper column 103 to ascend in parallel, at the moment, enabling cushion blocks 23 on a bearing component 2 to drop from sliding rails 112 and wedges 111 in sequence due to sliding blocks 26, extending into sliding grooves 106 of a support lower column 101 under the action of springs 24, after the support upper column 103 moves in place, rotating reversely or positively, adjusting the positions of the cushion blocks 23 adjacent to the wedges 111 to enable the cushion blocks to be in a bearing state, completing height adjustment of the bearing devices 1, installing protection plates 43 on the two groups of bearing devices 1, paving protection plates 4 above the vaults 4 to avoid top collapse of the bearing devices, protecting the tops of the roadway at the moment by the protection plates 43, supporting the two sides by the bearing devices 1, installing hanging a hanging type conveying device 5 on hanging calipers 3 of the bearing devices 1, sending tools into a working space by using the hanging type conveying device 5, and conveying materials out of the materials, as shown in fig. 10, carrying out the temporary dome-shaped bearing devices 5, and making the temporary conveying devices into the temporary conveying devices after the temporary dome-shaped roadway devices are combined with the temporary conveying devices, and making the temporary conveying devices for the roadway devices to be permanently and permanently combined with the temporary conveying the roadway devices, and making the temporary conveying the roadway devices for the temporary roadway and supporting devices for supporting the roadway and supporting the supporting devices for the temporary roadway and supporting the supporting devices for the supporting and the supporting devices.

The temporary reinforcing and supporting device is folded: when the temporary support device moves, the inclined stay bar 44 connected with the protection plate 43 is firstly loosened, then the position of the limiting disc 32 is adjusted, the clamping hooks 34 are loosened to enable the hanging type conveying device 5, then the screw rod lifter on the limiting frame 102 is controlled, the upper support column 103 is retracted into the lower support column 101, when the upper support column 103 descends, the wedge block 111 pushes up the sliding block 26, the cushion block 23 moves out of the sliding groove 106, and a space for accommodating the upper support column 103 flows out of the sliding groove 106, in the process, the dome 4 is detached from the top of the bearing device 1, the temporary support device is detached into two groups of bearing devices 1 and one group of dome 4, the detachment of the temporary support device is completed, then the two groups of bearing devices 1 and one group of dome 4 after detachment can be carried to the working space through the hanging hook on the hanging type conveying device 5, and the bearing device 1 with heavy weight can be assembled again to form the reinforcing support device.

When the support device is built again, the process of unfolding the temporary reinforcement support device is repeated, then the bent rail 51 adjacent to the temporary reinforcement support device is detached, the extension rail is arranged on the suspension clamp 3, and finally the extension rail is connected with the detached bent rail 51 and then the bent rail 51 is assembled, so that the support stability of a roadway which is just excavated can be ensured, and the material can be conveyed to an operation space in a following manner, so that the working efficiency of the operation space is ensured.

The foregoing is merely a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any modification and substitution based on the technical scheme and the inventive concept provided by the present invention should be covered in the scope of the present invention. It should be noted that the structures or components illustrated in the drawings are not necessarily drawn to scale, and that descriptions of well-known components and processing techniques and procedures are omitted so as not to unnecessarily limit the present invention.

Claims (7)

1. The utility model provides a colliery tunnel temporary reinforcement supporting device in coal mining tunnelling which characterized in that: the device comprises two groups of bearing devices (1) and a suspension type conveying device (5), wherein the two groups of bearing devices (1) are spliced to form a door-shaped structure, each group of bearing devices (1) comprises a lower supporting column (101), a limiting frame (102), an upper supporting column (103), a top beam (104) and a supporting rod (105), the limiting frame (102) is fixed on the outer side of the top of the lower supporting column (101), a sliding groove (106) matched with the profile of the upper supporting column (103) is processed on the top of the lower supporting column (101), a screw rod lifter (108) for adjusting the position of the upper supporting column (103) in the sliding groove (106) is arranged in the limiting frame (102), a bearing component (2) capable of extending into the sliding groove (106) is arranged below the inner side of the limiting frame (102), an installation protruding top beam (109) is processed on the side wall of the upper supporting column (103) below the top beam (104), a supporting top beam (105) is installed between the installation protruding top beam (109) and the top beam (104), the supporting rod (104) is installed on the suspension clamp (3) far away from the suspension clamp (104), the suspension clamp (3) is installed on the suspension device, the top beams (104) of the two groups of bearing devices (1) are oppositely arranged, and a detachable vault (4) is arranged above the top beams (104).

2. The temporary reinforcement and support device for a coal mine tunnel in coal mining tunneling according to claim 1, wherein: a bottom plate (110) is machined at the bottom of the support lower column (101).

3. The temporary reinforcement and support device for a coal mine tunnel in coal mining tunneling according to claim 2, wherein: the sliding chute (106) is cross-shaped, the bottom of support upper column (103) is cross-shaped, rack (107) matched with the outline of screw lifter (108) is processed on the side wall of support upper column (103), bearing assembly (2) are aligned with sliding chute (106), bearing assembly (2) comprise base plate (21), back shaft (22), cushion (23) and spring (24), base plate (21) are vertically installed below limit frame (102), a row of through holes (25) are processed on base plate (21) along the height direction, back shaft (22) horizontal installation is in each through hole (25), cushion (23) matched with the outline of sliding chute (106) are installed at one end of back shaft (22) close to sliding chute (106), spring (24) are sleeved on back shaft (22) between cushion (23) and base plate (21), and promote cushion (23) to the inside of sliding chute (106), slide block (26) are processed on each cushion (23), wedge (111) are processed on the bottom of support upper column (103) outward slide block (26).

4. A temporary reinforcement support device for a coal mine tunnel in coal mining and driving according to claim 3, wherein: the utility model provides a suspension calliper (3) including jib (31), spacing dish (32), fixing clip (33), trip (34) and reset spring (35), jib (31) are installed on back timber (104) through the universal connection pole, spacing dish (32) are installed to jib (31) below, movable mounting has fixing clip (33) on jib (31) of spacing dish (32) below, fixing clip (33) are the type of falling U, all articulate on the inner wall of fixing clip (33) both sides has trip (34), trip (34) top and jib (31) bottom are connected with pull rod (36), install reset spring (35) that promote fixing clip (33) to descend between spacing dish (32) and fixing clip (33).

5. The temporary reinforcement and support device for a coal mine tunnel in coal mining tunneling according to claim 4, wherein: a detachable hook is arranged below the fixing clamp (33).

6. The temporary reinforcement and support device for a coal mine tunnel in coal mining tunneling according to claim 4, wherein: the arch crown (4) comprises an arch beam (41), an elastic beam (42), a protection plate (43) and inclined supporting rods (44), wherein the arch beam (41) is arc-shaped, connecting plates (45) connected with top beams (104) are processed at two ends of the arch beam (41), the length of the elastic beam (42) is larger than that of the arch beam (41), the two ends of the elastic beam (42) are connected with the two ends of the arch beam (41), the protection plate (43) is mounted at the top of the elastic beam (42), and a plurality of inclined supporting rods (44) connected with the protection plate (43) are mounted on the side walls of two sides of the arch beam (41).

7. The temporary reinforcement and support device for a coal mine tunnel in coal mining tunneling according to claim 4, wherein: the hanging type conveying device (5) comprises a door-shaped bending track (51) and a hook wheel chain (52) capable of moving in the bending track (51), a plurality of moving wheels (53) are uniformly arranged on the hook wheel chain (52), and a clamping groove (54) matched with the outline of the clamping hook (34) is formed in the top of the bending track (51).