CN216110724U

CN216110724U - Tunnel bores and explodes combination cloth pore structure of surpassing undermining control

Info

Publication number: CN216110724U
Application number: CN202122093647.1U
Authority: CN
Inventors: 蒋喜; 苑好然; 刘亚辉; 熊永磊; 冯成楠; 任一杰; 赵广山; 杜晓明; 付若麟; 许新尚; 陈义斌; 陈辉
Original assignee: Henan Luanlu Expressway Construction Co ltd; PowerChina Roadbridge Group Co Ltd
Current assignee: Henan Luanlu Expressway Construction Co ltd; PowerChina Roadbridge Group Co Ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2022-03-22
Anticipated expiration: 2031-09-01

Abstract

The utility model discloses a combined hole distribution structure for tunnel drilling explosion and undermining control, which comprises a trolley and a plurality of groups of hole distribution assemblies, wherein the trolley is of an arched frame structure, the plurality of groups of hole distribution assemblies are uniformly arranged on the outer side of the trolley, a transmission flexible shaft extending along the outer side of the trolley is arranged outside the trolley in front of the hole distribution assemblies, and a restraint frame is arranged outside the trolley behind the plurality of groups of hole distribution assemblies. Has the advantages that: according to the utility model, a plurality of groups of drill rod hole distribution assemblies outside the drilling trolley are connected through the transmission flexible shaft, so that the support angles of the drill rod guide pipes of the plurality of groups of hole distribution assemblies are kept consistent and can be synchronously adjusted, and meanwhile, the drill rod outer inserting angle of one group of hole distribution assemblies can be independently adjusted, so that the drilling machine is convenient to use, the hole distribution time is shortened, and the construction efficiency is improved.

Description

Tunnel bores and explodes combination cloth pore structure of surpassing undermining control

Technical Field

The utility model relates to the field of tunnel excavation, in particular to a combined hole distribution structure for tunnel drilling explosion over-short excavation control.

Background

Under the background of using a drilling and blasting method to excavate underground tunnels in a large quantity, serious underproduction and poor tunnel forming gradually become one of the common problems in the current tunnel construction. The tunnel over-underexcavation is based on an excavation standard contour line, the actual excavation contour line of the tunnel is larger than the design contour line of the standard tunnel, and the actual excavation contour line of the tunnel is smaller than the design contour line of the tunnel. Stress concentration of the protruded concrete and surrounding rock can be caused when the tunnel is over excavated seriously, the stability of a lining structure is damaged, and hidden danger is formed on the safe operation of the whole life cycle of the tunnel. The tunnel is underexcavated, so that the lining thickness is insufficient, the engineering quality is influenced, and potential safety hazards are formed. Therefore, the problem of overbreak and underbreak in the excavation of the highway tunnel must be effectively controlled during construction. How to realize smooth excavation surface and meet the design size of blasting outline, and guarantee construction quality, safety and reduce cost become the central importance of highway tunnel construction simultaneously.

The applicant finds that at least the following technical problems exist in the prior art: a plurality of drilling rod stand pipes of tunnel blasting construction platform truck that uses at present are the disconnect-type structure, need adjust a plurality of stand pipes alone in proper order when the angle is inserted outward in the adjustment drilling, complex operation, and a plurality of drilling rod stand pipes are inserted the angle outward and are difficult to keep unanimous, and it is inconvenient to use, and the cloth hole is long, and the efficiency of construction is low.

Disclosure of Invention

The utility model aims to solve the problems and provide a combined hole distribution structure for tunnel drilling explosion and undermining control, wherein a plurality of groups of drill rod hole distribution assemblies outside a drilling trolley are connected through a transmission flexible shaft, so that the support angles of drill rod guide pipes of the plurality of groups of hole distribution assemblies are kept consistent and can be synchronously adjusted, and meanwhile, the drill rod outer insertion angle of one group of hole distribution assemblies can be independently adjusted, so that the hole distribution structure is convenient to use, shortens the hole distribution time, improves the construction efficiency and is explained in detail in the following.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a combined hole distribution structure for tunnel drilling explosion and over-short excavation control, which comprises a trolley and a plurality of groups of hole distribution assemblies, wherein the trolley is of an arched frame structure, the plurality of groups of hole distribution assemblies are uniformly arranged on the outer side of the trolley, a transmission flexible shaft extending along the outer side of the trolley is arranged outside the trolley in front of the hole distribution assemblies, and a restraint frame is arranged outside the trolley behind the plurality of groups of hole distribution assemblies;

the utility model discloses a take out the restraint frame, including the frame, the frame is provided with the top of drive flexible axle, the frame is provided with the cloth hole subassembly in the frame outside, the frame is provided with the multiunit support corresponding cloth hole subassembly and is provided with the multiunit support the transmission flexible axle pivoted rotates the ear, the cloth hole subassembly including set up in the frame is slided to the frame outside and longitudinal extension's rectangle square frame form, it is provided with the slider to slide frame middle part longitudinal sliding, be provided with the screw rod in the frame, this screw rod with slider screw-thread fit, screw rod front end is provided with drive gear, the outside cloth hole subassembly that corresponds of transmission flexible axle is provided with the multiunit meshing drive gear of drive gear, the slider top articulates there is the support arm, the support arm top is rotated and is provided with the stand, the support arm rear is provided with waist type groove, the restraint frame is the U-shaped structure that the opening is down, restraint frame top side middle part runs through waist type groove and with waist type groove sliding fit.

When the combined hole distribution structure for tunnel drilling explosion over-short excavation control is used, a trolley is used for supporting a plurality of groups of hole distribution assemblies to move to the end face position of a tunnel to be blasted, a constructor determines a required drilling angle according to actual conditions, an operator rotates a transmission flexible shaft according to the drilling angle, the transmission flexible shaft is used for driving a plurality of groups of driving gears to rotate, the plurality of groups of driving gears drive transmission gears of the plurality of groups of hole distribution assemblies to synchronously rotate, the transmission gears drive screw rods to rotate so as to support sliding blocks to longitudinally slide along a sliding frame, and the sliding blocks support arms are used for carrying out angle adjustment under the sliding support of a constraint frame so as to ensure that a plurality of guide pipes of the plurality of groups of hole distribution assemblies are synchronously adjusted to the set drilling angle; when the angle of the guide pipe of one of them group of cloth hole subassembly of needs independent adjustment, operating personnel rotates the carousel at this group guide pipe rear, utilizes the carousel to drive the regulation pole and rotates, through the screw-thread fit effect of adjusting pole and dead lever to the height position of adjustment movable rod and restraint pole utilizes restraint pole to pull the support arm and adjusts in order to the angle of guide pipe.

Preferably, a plurality of groups of bearing brackets are arranged on the outer side of the trolley corresponding to the hole distribution assembly, the sliding frame is fixed on the outer side of the bearing brackets, and knobs are arranged at two ends of the transmission flexible shaft.

Preferably, a supporting seat is fixed on the outer side of the supporting arm, and the supporting seat is in running fit with the guide pipe through a thrust bearing.

Preferably, the restraint frame comprises two groups of outer cylinders vertically fixed on the outer sides of the trolley, the two groups of outer cylinders are parallel to each other, U-shaped restraint rods are arranged on the outer sides of the two groups of outer cylinders, and two ends of each restraint rod are in clearance fit with the two groups of outer cylinders respectively.

Preferably, the middle parts of the two ends of the restraint rod are connected with movable rods, a fixed rod is connected between the two groups of outer cylinders, the fixed rods are parallel to the movable rods and are perpendicular to the outer cylinders, an adjusting rod penetrating through the fixed rods is in running fit with the bottom sides of the movable rods, the adjusting rod is in threaded fit with the fixed rods, and a turntable is arranged at the bottom end of the adjusting rod.

Preferably, the two ends of the bottom of the trolley are transversely provided with bottom plates, the bottom sides of the bottom plates are provided with track wheels, the top sides of the two groups of bottom plates are provided with U-shaped reinforcing frames with downward openings, and corners on the two sides in the reinforcing frames are provided with two groups of inclined struts.

Has the advantages that: according to the utility model, a plurality of groups of drill rod hole distribution assemblies outside the drilling trolley are connected through the transmission flexible shaft, so that the support angles of the drill rod guide pipes of the plurality of groups of hole distribution assemblies are kept consistent and can be synchronously adjusted, and meanwhile, the drill rod outer inserting angle of one group of hole distribution assemblies can be independently adjusted, so that the drilling machine is convenient to use, the hole distribution time is shortened, and the construction efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

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

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is an enlarged view of the structure of FIG. 2 at A;

fig. 4 is a top view structural view of the present invention.

The reference numerals are explained below:

1. a trolley; 101. rotating the lug; 102. a support bracket; 2. a hole distribution assembly; 201. a sliding frame; 202. a slider; 203. a screw; 203a, a transmission gear; 204. a support arm; 204a, a kidney-shaped groove; 205. a supporting seat; 206. a guide tube; 3. a flexible transmission shaft; 301. a knob; 302. a drive gear; 4. a base plate; 5. a rail wheel; 6. a reinforcing frame; 601. bracing; 7. a restraint frame; 701. an outer cylinder; 702. a restraining bar; 703. a movable rod; 704. fixing the rod; 705. adjusting a rod; 705a, a turntable.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

Referring to fig. 1-4, the utility model provides a combined hole distribution structure for tunnel drilling explosion ultra-short excavation control, which comprises a trolley 1 and a plurality of groups of hole distribution assemblies 2, wherein the trolley 1 is of an arched frame structure, the plurality of groups of hole distribution assemblies 2 are uniformly arranged on the outer side of the trolley 1, a transmission flexible shaft 3 extending along the outer side of the trolley 1 is arranged outside the trolley 1 in front of the hole distribution assemblies 2, and a restraint frame 7 is arranged outside the trolley 1 behind the plurality of groups of hole distribution assemblies 2;

the outer side of the trolley 1 is provided with a plurality of groups of rotating lugs 101 for supporting the transmission flexible shaft 3 to rotate corresponding to the hole distribution assembly 2, the hole distribution assembly 2 comprises a rectangular square sliding frame 201 which is arranged on the outer side of the trolley 1 and longitudinally extends, a sliding block 202 is longitudinally arranged in the middle of the sliding frame 201 in a sliding mode, a screw rod 203 is arranged in the sliding frame 201, the screw rod 203 is in threaded fit with the sliding block 202, a transmission gear 203a is arranged at the front end of the screw rod 203, a plurality of groups of driving gears 302 which are meshed with the transmission gear 203a are arranged on the outer portion of the transmission flexible shaft 3 corresponding to the hole distribution assembly 2, the top of the sliding block 202 is hinged with a support arm 204, a guide pipe 206 is rotatably arranged above the support arm 204, a waist-shaped groove 204a is arranged behind the support arm 204, the restraint frame 7 is of a U-shaped structure with a downward opening, and the middle of the top side of the restraint frame 7 penetrates through the waist-shaped groove 204a and is in sliding fit with the waist-shaped groove 204 a.

As an optional implementation manner, a plurality of groups of supporting brackets 102 are arranged on the outer side of the trolley 1 corresponding to the hole distribution assembly 2, the sliding frame 201 is fixed on the outer side of the supporting brackets 102, knobs 301 are arranged at two ends of the transmission flexible shaft 3, a supporting seat 205 is fixed on the outer side of the supporting arm 204, the supporting seat 205 is in running fit with a guide pipe 206 through a thrust bearing, the guide pipe 206 is used for supporting a tunnel drill rod to drill a hole in a tunnel blasting layer, and the guide pipe 206 is used for positioning an external insertion angle of the hole and adjusting the external insertion angle of the hole by adjusting the orientation of the guide pipe 206;

the restraint frame 7 comprises two groups of outer cylinders 701 vertically fixed on the outer side of the trolley 1, the two groups of outer cylinders 701 are parallel to each other, U-shaped restraint rods 702 are arranged on the outer sides of the two groups of outer cylinders 701, two ends of each restraint rod 702 are in clearance fit with the two groups of outer cylinders 701 respectively, movable rods 703 are connected in the middles of the two ends of each restraint rod 702, a fixed rod 704 is connected between the two groups of outer cylinders 701, the fixed rods 704 and the movable rods 703 are parallel to each other and are perpendicular to the outer cylinders 701, adjusting rods 705 penetrating through the fixed rods 704 are rotatably matched on the bottom sides of the movable rods 703, the adjusting rods 705 are in threaded fit with the fixed rods 704, a rotary table 705a is arranged at the bottom ends of the adjusting rods 705, and the restraint frame 7 is used for adjusting the supporting angles of the guide pipes 206 of the single group of hole distribution assemblies 2, so that the use requirements of different use environments are met;

all transversely be provided with bottom plate 4 at 1 bottom both ends of platform truck, 4 bottom sides of bottom plate are provided with rail wheel 5, two sets of 4 top sides of bottom plate are provided with opening U-shaped reinforcement frame 6 down, both sides corner is provided with two sets of bracing 601 in the reinforcement frame 6, rail wheel 5 the support equipment that sets up through 1 bottom of platform truck is whole to be removed in the tunnel on the track of both sides, set up reinforcement frame 6 in 1 inboard of platform truck simultaneously, so that load moving vehicle with platform truck 1 and the external world and be connected, thereby the whole cloth hole blasting that removes of actuating device.

By adopting the structure, when in use, a trolley 1 is utilized to support a plurality of groups of hole distribution assemblies 2 to move to the end face position of a tunnel to be blasted, a constructor determines the required drilling angle according to the actual situation, an operator rotates the transmission flexible shaft 3 according to the drilling angle, the transmission flexible shaft 3 is utilized to drive a plurality of groups of driving gears 302 to rotate, meanwhile, the plurality of groups of driving gears 302 drive transmission gears 203a of the plurality of groups of hole distribution assemblies 2 to synchronously rotate, the transmission gears 203a drive the screw rods 203 to rotate so as to support the sliding blocks 202 to longitudinally slide along the sliding frames 201, and the sliding blocks 202 support the support arms 204 to carry out angle adjustment under the sliding support of the constraint frame 7 so as to ensure that a plurality of guide pipes 206 of the plurality of groups of hole distribution assemblies 2 are synchronously adjusted to the set drilling angle; when the angle of the guide tube 206 of one of the hole distribution assemblies 2 needs to be adjusted independently, an operator rotates the turntable 705a behind the guide tube 206, the turntable 705a drives the adjusting rod 705 to rotate, the height positions of the movable rod 703 and the restraining rod 702 are adjusted through the thread matching effect of the adjusting rod 705 and the fixed rod 704, and the restraining rod 702 is used for pulling the support arm 204 to adjust the angle of the guide tube 206;

through connecting drilling platform truck 1 outside multiunit drilling rod cloth hole subassembly 2 through transmission flexible axle 3, guarantee that the drilling rod stand pipe 206 of multiunit cloth hole subassembly 2 supports the angle and keeps unanimous and can adjust in step, can adjust the drilling rod external plug angle of one of them group cloth hole subassembly 2 alone simultaneously, it is convenient to use, shortens cloth hole time, improves the efficiency of construction.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. The utility model provides a tunnel bores and explodes combination cloth pore structure of surpassing owe digging control which characterized in that: the hole distribution device comprises a trolley (1) and a plurality of groups of hole distribution assemblies (2), wherein the trolley (1) is of an arched frame structure, the plurality of groups of hole distribution assemblies (2) are uniformly arranged on the outer side of the trolley (1), a transmission flexible shaft (3) extending along the outer side of the trolley (1) is arranged outside the trolley (1) in front of the hole distribution assemblies (2), and restraint frames (7) are arranged outside the trolley (1) behind the plurality of groups of hole distribution assemblies (2);

the hole distribution assembly is characterized in that a plurality of groups of rotating lugs (101) for supporting the transmission flexible shaft (3) to rotate are arranged on the outer side of the trolley (1) corresponding to the hole distribution assembly (2), the hole distribution assembly (2) comprises a rectangular square frame-shaped sliding frame (201) which is arranged on the outer side of the trolley (1) and extends longitudinally, a sliding block (202) is arranged in the middle of the sliding frame (201) in a longitudinal sliding mode, a screw rod (203) is arranged in the sliding frame (201), the screw rod (203) is in threaded fit with the sliding block (202), a transmission gear (203 a) is arranged at the front end of the screw rod (203), a plurality of groups of driving gears (302) meshed with the transmission gear (203 a) are arranged on the outer portion of the transmission flexible shaft (3) corresponding to the hole distribution assembly (2), a support arm (204) is hinged to the top of the sliding block (202), a guide pipe (206) is rotatably arranged above the support arm (204), and a waist-shaped groove (204 a) is arranged behind the support arm (204), the restraint frame (7) is of a U-shaped structure with an opening facing downwards, and the middle of the top side of the restraint frame (7) penetrates through the waist-shaped groove (204 a) and is in sliding fit with the waist-shaped groove (204 a).

2. The combined hole distribution structure for tunnel drilling explosion and under-excavation control according to claim 1, characterized in that: the outer side of the trolley (1) is provided with a plurality of groups of bearing brackets (102) corresponding to the hole distribution assembly (2), the sliding frame (201) is fixed on the outer side of the bearing brackets (102), and two ends of the transmission flexible shaft (3) are provided with knobs (301).

3. The combined hole distribution structure for tunnel drilling explosion and under-excavation control according to claim 1, characterized in that: the outer side of the support arm (204) is fixed with a support seat (205), and the support seat (205) is in running fit with the guide pipe (206) through a thrust bearing.

4. The combined hole distribution structure for tunnel drilling explosion and under-excavation control according to claim 1, characterized in that: restraint frame (7) include two sets of vertical be fixed in urceolus (701) in platform truck (1) outside, two sets of urceolus (701) are parallel to each other, and two sets of urceolus (701) outside is provided with about pole (702) of U-shaped, about pole (702) both ends respectively with two sets of urceolus (701) clearance fit.

5. The combined hole distribution structure for tunnel drilling explosion and under-excavation control according to claim 4, wherein: the middle parts of two ends of the restraint rod (702) are connected with movable rods (703), a fixed rod (704) is connected between the two outer cylinders (701), the fixed rod (704) and the movable rods (703) are parallel to each other and are perpendicular to each other, an adjusting rod (705) penetrating through the fixed rod (704) is arranged on the bottom side of the movable rod (703) in a rotating fit mode, the adjusting rod (705) is in threaded fit with the fixed rod (704), and a rotary disc (705 a) is arranged at the bottom end of the adjusting rod (705).

6. The combined hole distribution structure for tunnel drilling explosion and under-excavation control according to claim 1, characterized in that: the trolley is characterized in that bottom plates (4) are transversely arranged at two ends of the bottom of the trolley (1), track wheels (5) are arranged on the bottom side of each bottom plate (4), U-shaped reinforcing frames (6) with downward openings are arranged on the top sides of the two groups of bottom plates (4), and two groups of inclined struts (601) are arranged at corners of two sides in each reinforcing frame (6).