Method and device for high-altitude walking of temporary hydraulic support and / or multi-arm drilling rig for tunnel excavation

Abstract

The present invention relates to the technical field of coal industry, and more particularly to a method and device for high-altitude travel of a temporary hydraulic support and / or a multi-arm drilling rig for tunnel excavation. The present invention enables a temporary hydraulic support and / or a multi-arm drilling rig for tunnel excavation to move at high altitude along an elevated road by means of a top-mounted walking device, thereby solving the problems of uneven tunnel floor, narrow space, and difficulty in cross-exchange of excavation and support equipment. The present invention can be applied to related equipment for tunnel excavation support, tunnel renovation, and advance support for mining, and has great application prospects in mines with risks of roof collapse, rock burst, and coal and gas outbursts.

Description

Technical Field

[0001] The present invention relates to the technical field of coal industry, and in particular to a method and device for high-altitude walking of a temporary hydraulic support and / or a multi-arm drilling rig for tunnel excavation, which can also be referred to as a high-altitude movable advance support support, or a high-altitude movable anchor drilling rig platform, or a high-altitude movable tunnel hydraulic support and multi-arm anchor drilling rig, or a high-altitude walking method and device for coal mine tunnel excavation, maintenance and advance support technical equipment. Background Art

[0002] Coal mine tunnels often face huge safety hazards such as roof falls and rock bursts, especially in newly exposed areas that have not yet been supported after excavation, advanced support areas affected by mining pressure, and areas that need to be reinforced due to local support body damage. When workers operate traditional single anchor drills in the above three areas, accidents are inevitable due to the lack of strong temporary support above and on both sides, which can cause injuries or even lead to the tragedy of loss of life. Therefore, research on technical equipment for coal mine tunnel excavation, maintenance, and advanced support will greatly promote the safe and high-quality development of my country's coal industry.

[0003] At present, foreign roadheader manufacturers have done a lot of research on the technical equipment for coal mine tunnel excavation, maintenance and advance support, and related products have been launched. Due to the huge domestic demand, with the participation of some universities and enterprises, research in this area will continue to increase and there will be more and more results, but there are still many problems that need to be solved. In the future, more domestic coal mine tunnel equipment will surely mature and go to the world.

[0004] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to those skilled in the art. Summary of the invention

[0005] The purpose of the present invention is to provide a temporary hydraulic support for tunnel excavation and / or a high-altitude walking device and method for a multi-arm drilling rig, so as to solve the technical problems existing in the prior art.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] In a first aspect, the present invention provides a method for high-altitude travel of a temporary hydraulic support and / or a multi-arm drilling rig for tunnel excavation, which comprises the following steps: a temporary hydraulic support and / or a multi-arm drilling rig for tunnel excavation is moved at high altitude along an elevated road by a top-mounted walking device.

[0008] Preferably, an elevated road is formed above the tunnel boring machine, above the belt conveyor, on a trackless linear support or on a rail material transport vehicle; and a temporary hydraulic support for tunnel excavation and / or a multi-arm drilling rig reciprocates along the elevated road driven by a top-mounted walking device.

[0009] In a second aspect, the present invention provides a temporary hydraulic support for tunnel excavation and / or an aerial walking device for a multi-arm drilling rig, comprising: a top-mounted walking device for moving the temporary hydraulic support for tunnel excavation and / or the multi-arm drilling rig along an elevated road.

[0010] As a further technical solution, the top-mounted walking device adopts any one of a chain-type walking mechanism, a crawler-type walking mechanism, a wheel-type walking mechanism or a foot-type walking mechanism.

[0011] As a further technical solution, the top-mounted walking device includes: a spring support device; the spring support device is used to provide uniform supporting force to the bottom chain of the crawler track of the top-mounted walking device.

[0012] As a further technical solution, the spring support device includes: a spring box and a telescopic sleeve; the spring box has a plurality of open mounting positions; a spring is installed at the bottom of each mounting position; one end of the telescopic sleeve is arranged in the mounting position of the spring box, and the other end of the telescopic sleeve is against the chain of the crawler track, and the telescopic sleeve can slide up and down relative to the spring box to form a uniform supporting force on the chain of the crawler track.

[0013] As a further technical solution, the telescopic sleeve is provided with a guide keyway; the spring box is provided with a guide key, and the guide key is adapted to the guide keyway.

[0014] As a further technical solution, the lower end surface of the telescopic sleeve is provided with a groove adapted to the crawler chain.

[0015] As a further technical solution, the crawler of the top-mounted walking device surrounds the top beam of the temporary hydraulic support to form a closed loop; the lower part of the crawler is used for the walking of the temporary hydraulic support and / or the multi-arm drilling rig for tunnel excavation; when the crawler is idling, its upper part can pull the top protection net to lay it on the tunnel roof.

[0016] As a further technical solution, the top-mounted walking device includes: a driving device and a crawler track; the driving device is connected to a driving wheel arranged at one end of a temporary hydraulic support for tunnel excavation; a driven wheel is arranged at the other end of the temporary hydraulic support for tunnel excavation; and the crawler track is arranged between the driving wheel and the driven wheel.

[0017] As a further technical solution, the top-mounted walking device includes: a spring support device; the spring support device is arranged below the temporary hydraulic support for tunnel excavation, and is used to provide uniform support force to the bottom chain of the crawler of the top-mounted walking device.

[0018] As a further technical solution, the top-mounted walking device includes: a tensioning device; the tensioning device is connected to a driven wheel arranged at one end of a temporary hydraulic support for tunnel excavation, and is used to adjust the tension of the crawler between the driving wheel and the driven wheel.

[0019] As a further technical solution, the top-mounted walking device includes: a drag chain device; the drag chain device is used to keep the crawler belt at a preset height and position.

[0020] As a further technical method, the temporary hydraulic support comprises: a shielding plate beam, a telescopic mechanism;

[0021] The shielding plate beams are connected in an interlaced manner through transverse beams and longitudinal beams;

[0022] The shield beam has a plurality of drilled skylights;

[0023] The shield beam is provided with a telescopic mechanism below the cross beams on both sides;

[0024] The telescopic mechanism can realize telescopic movement in the vertical direction;

[0025] The top-mounted walking device is arranged at the middle part of the shielding plate beam along the direction of the longitudinal beam.

[0026] As a further technical method, an anchor drilling system is suspended on the temporary hydraulic support, and the anchor drilling system slides through a single-side track arranged on the crossbeam.

[0027] As a further technical method, the top-mounted walking device includes: a driving device arranged at the front end of the temporary hydraulic support;

[0028] The driving device comprises: a driving motor, a transmission shaft, a bearing seat, a driving wheel and a balancing wheel;

[0029] The driving motor is connected to the transmission shaft;

[0030] The transmission shaft is connected to the shield beam through a plurality of bearing seats;

[0031] The two driving wheels are respectively installed at the middle positions of the transmission shaft;

[0032] The two balance wheels are respectively mounted on the proximal end and the distal end of the transmission shaft.

[0033] As a further technical method, the top-mounted walking device includes: a tensioning device arranged at the rear end of the temporary hydraulic support;

[0034] The tensioning device comprises a tensioning wheel, a tensioning wheel bracket and a tensioning cylinder;

[0035] The cylinder body of the tensioning cylinder is installed on the shield beam;

[0036] The piston rod of the tensioning oil cylinder is connected to the tensioning wheel bracket;

[0037] The tension wheel bracket is equipped with a tension wheel;

[0038] A chain is correspondingly installed between the tension wheel and the driving wheel.

[0039] As a further technical method, the top-mounted walking device includes: a steering correction mechanism;

[0040] The steering correction mechanism comprises: a correction cylinder and a bidirectional translation cylinder;

[0041] The upper part of the cylinder body of the deviation correction oil cylinder is pivotally connected to a mounting plate through a rotating shaft and a pressure block;

[0042] The mounting plate is centrally welded to the upper surface of the shield beam;

[0043] The lower part of the cylinder body of the deviation-correcting oil cylinder is connected with a swing head;

[0044] The piston rod of the deviation-correcting oil cylinder is connected with an anti-skid shoe;

[0045] The bottom of the anti-skid boot has a friction plate;

[0046] The mounting hole of the swing head is hinged to the pin in the middle of the bidirectional translation oil cylinder;

[0047] The mounting base of the bidirectional translation oil cylinder is symmetrically welded on the lower surface of the shield beam;

[0048] The two output ends of the bidirectional translation oil cylinder are fixed to the mounting base by bolts;

[0049] A sleeve is arranged in the middle of the bidirectional translation oil cylinder, and a pin is arranged below the sleeve;

[0050] The mounting hole of the swing head is hinged to the pin shaft in the middle of the bidirectional translation oil cylinder.

[0051] By adopting the above technical solution, the present invention has the following beneficial effects:

[0052] The present invention realizes the function of moving the temporary hydraulic support and / or multi-arm drilling rig for tunnel excavation at high altitude along the elevated road through the top-mounted walking device, solving the problem of uneven tunnel floor, narrow space, and difficulty in cross-exchange of excavation and support equipment. The present invention can be applied to related equipment for tunnel excavation support, tunnel renovation, and advance support for mining, and has great application prospects in mines with roof collapse risks, rock bursts, and coal and gas outbursts. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0054] Figure 1 An axonometric diagram of a top-mounted walking device provided in an embodiment of the present invention;

[0055] Figure 2 A side view of a top-mounted walking device provided in an embodiment of the present invention;

[0056] Figure 3 A front view of a top-mounted walking device provided in an embodiment of the present invention;

[0057] Figure 4 A top view of a top-mounted walking device provided in an embodiment of the present invention;

[0058] Figure 5 A side view of a driving device for a top-mounted walking device provided by an embodiment of the present invention;

[0059] Figure 6 A cross-sectional view of a sliding support of a top-mounted walking device provided in an embodiment of the present invention;

[0060] Figure 7 A front view of a spring box of a top-mounted walking device provided in an embodiment of the present invention.

[0061] Figure 8 A cross-sectional view of a spring box of a top-mounted walking device provided in an embodiment of the present invention;

[0062] Fig. 9 A cross-sectional view of a telescopic sleeve of a top-mounted walking device provided in an embodiment of the present invention;

[0063] Fig.10 A side view of a telescopic sleeve of a top-mounted walking device provided in an embodiment of the present invention;

[0064] Fig.11A cross-sectional view of a deviation-correcting mechanism of a top-mounted walking device provided in an embodiment of the present invention;

[0065] Fig.12 A cross-sectional view of a tensioning device for a top-mounted walking device provided by an embodiment of the present invention;

[0066] Fig.13 A schematic diagram of a top-mounted walking device provided in an embodiment of the present invention in a walking state on an elevated road, wherein the top-mounted walking device is located in a second transport position;

[0067] Fig.14 A schematic diagram of a top-mounted walking device provided in an embodiment of the present invention in a walking state on an elevated road, wherein the top-mounted walking device is located at a cutting portion of a tunnel boring machine;

[0068] Fig.15 A schematic diagram of a walking state of a top-mounted walking device provided in an embodiment of the present invention on an elevated road, wherein a temporary hydraulic support is in a supporting state;

[0069] Fig.16 A schematic diagram of a walking state of a top-mounted walking device provided by an embodiment of the present invention on an elevated road,

[0070] Among them, the tunnel boring machine exited and the anchor drilling machine started working;

[0071] Fig.17 A front view of an elevated road provided by an embodiment of the present invention;

[0072] Fig.18 An axonometric diagram of an elevated road provided by an embodiment of the present invention;

[0073] Fig.19 A front view of a side-mounted self-propelled anchor drilling rig provided by an embodiment of the present invention;

[0074] Fig. 20 A side view of a side-mounted self-propelled anchor drilling rig provided by an embodiment of the present invention;

[0075] Fig.21 A schematic diagram of the state of the top-mounted walking device before laying the net provided by an embodiment of the present invention;

[0076] Fig. 22 A schematic diagram of the state of the top-mounted walking device provided in an embodiment of the present invention when laying a net.

[0077] Icons: 0- viaduct; 1- shield beam; 2- telescopic mechanism; 3- drilling skylight; 4- driving device; 5- chain; 6- spring support device; 7- tensioning device; 9- anchor drilling system; 10- driving motor; 11- connecting spline; 12- balance wheel; 13- bearing seat; 14- driving wheel; 15- transmission shaft; 16- spring box; 17- spring; 18- guide key; 19- telescopic sleeve; 20- guide keyway; 21- two-way translation cylinder; 22- mounting plate; 23- rotating shaft; 2 4-correction cylinder; 25-anti-slip boots; 26-tensioning wheel; 28-tensioning cylinder; 30-mounting bolts; 31-elevated shoulder; 32-elevated pavement; 40-top net; 100-single-side track; 200-L-shaped notch; 300-transverse connecting plate; 400-track body; 500-hook sliding part; 600-transmission rack; 700-transmission gear; 800-bearing seat; 900-driving sprocket; 1000-drilling rig body; 1100-rotating disk; 1200-motor. DETAILED DESCRIPTION

[0078] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0079] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0080] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0081] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0082] Embodiment 1

[0083] This embodiment provides a temporary hydraulic support for tunnel excavation and / or a high-altitude traveling device for a multi-arm drilling rig, which includes a top-mounted traveling device for moving the temporary hydraulic support for tunnel excavation and / or the multi-arm drilling rig at high altitude along an elevated road.

[0084] In this embodiment, it can be understood that the meaning of "and / or" is:

[0085] "Temporary hydraulic support for tunnel excavation" is defined as a, and "multi-arm drilling rig" is defined as b, where the technical solutions composed of a and / or b include: 1. Selecting a and b at the same time; 2. Selecting a alone; 3. Selecting b alone.

[0086] In this embodiment, the specific form of the top-mounted walking device is not limited. The top-mounted walking device adopts any one of a chain-type walking mechanism, a crawler-type walking mechanism, a wheel-type walking mechanism or a foot-type walking mechanism. Therefore, the top-mounted walking device can be flexibly set according to actual needs.

[0087] It is worth noting that the top travel device can be applied to relevant equipment for tunnel excavation support, tunnel renovation, and mining advance support. In order to better demonstrate the working principle of the top travel device, the top travel device is applied to a temporary hydraulic support as an example.

[0088] For example: Combine Figures 1 to 18 As shown, the top-mounted walking device is arranged on the temporary hydraulic support, and the top-mounted walking device is used to drive the temporary hydraulic support to move back and forth in the air along the elevated road 0 in the tunnel, solving the problem of difficulty in cross-exchange with other equipment in the narrow and limited space of the coal mine tunnel.

[0089] In this embodiment, preferably, the elevated road 0 can be flexibly set on various parts of the tunnel boring machine, above the belt conveyor, on the trackless linear support or above the rail material transport vehicle according to the needs of tunnel excavation, maintenance and advance support, so as to provide a walking path for the temporary hydraulic support; it should be noted that the elevated road 0 is a part used in conjunction with the top-mounted walking device, which itself can also adopt any form, can be independent of the temporary hydraulic support, and is not included in the structure of the temporary hydraulic support itself.

[0090] In this embodiment, preferably, the temporary hydraulic support includes: a shielding plate beam 1, a telescopic mechanism 2; the shielding plate beam 1 is staggeredly connected by cross beams and longitudinal beams; the shielding plate beam 1 has a plurality of drilled skylights 3; the shielding plate beam 1 is provided with a telescopic mechanism 2 under the cross beams on both sides; the telescopic mechanism 2 can realize telescopic movement in the vertical direction; the shielding plate beam 1 is hoisted with an anchor drilling system 9 under the cross beams on both sides; the anchor drilling system 9 slides through a single-sided track arranged on the cross beam; the top-mounted walking device is arranged in the middle of the shielding plate beam 1 along the direction of the longitudinal beam.

[0091] Of course, the specific size and material of the shielding plate beam 1 can be flexibly set according to actual needs. The shielding plate beam 1 is provided with a corresponding drilling skylight 3 according to the support parameters, and a telescopic mechanism 2 is provided below the shielding plate beam 1. The telescopic mechanism 2 is supported on the bottom plate of the tunnel, so as to support the shielding plate beam 1 at a set height below the top plate of the tunnel. The telescopic mechanism 2 can adjust the height of the shielding beam within a certain range, so as to avoid the shielding beam from contacting the uneven top plate of the tunnel in the traditional process and causing distortion, and to protect the safety of the personnel performing anchor support under the tunnel excavation shield support. The anchor drilling system 9 is provided with a track on the shielding plate beam 1, and can realize lateral movement of up to 2m through the lateral moving mechanism, so as to realize the anchor cable support of the anchor drilling rig within this range.

[0092] In this embodiment, preferably, the top-mounted walking device includes: a driving device 4 arranged at the front end of the temporary hydraulic support.

[0093] In this embodiment, preferably, the driving device 4 includes: a driving motor 10, a transmission shaft 15, a bearing seat 13, a driving wheel 14 and a balancing wheel 12; the driving motor 10 is connected to the transmission shaft 15 (connecting spline 11); the driving motor 10 of the driving device 4 can rotate forward or reverse, and can move forward and backward according to the needs of the equipment. When the anchor drilling function is turned on, the walking function is in a closed state. The transmission shaft 15 is connected to the shield beam 1 through a plurality of bearing seats 13; the two driving wheels 14 are respectively installed at the middle position of the transmission shaft 15; the two balancing wheels 12 are respectively installed at the proximal end and the distal end of the transmission shaft 15. The balancing wheel 12 is only installed on the driving shaft with a bearing, which is a part of the driving device 4. Its function is to contact the elevated road 0 together with the driving wheel. On the one hand, it increases the ground contact area, and on the other hand, it avoids the left-right unbalanced rotation of the narrow wheelbase.

[0094] In this embodiment, preferably, the top-mounted walking device includes: a tensioning device 7 arranged at the rear end of the temporary hydraulic support.

[0095] In this embodiment, preferably, the tensioning device 7 includes a tensioning wheel 26, a tensioning wheel 26 bracket and a tensioning cylinder 28; the cylinder body of the tensioning cylinder 28 is installed on the shield beam 1; the piston rod of the tensioning cylinder 28 is connected to the tensioning wheel bracket; the tensioning wheel bracket is installed with the tensioning wheel 26, and the tensioning wheel 26 serves as a driven wheel; a chain 5 (track) is correspondingly installed between the tensioning wheel 26 and the driving wheel 14. Among them, the chain 5 and the track can be replaced with each other, and the two can be flexibly set according to actual needs when selecting.

[0096] In this embodiment, preferably, as a further technical solution, the top-mounted walking device includes: a spring support device 6 arranged on the lower surface of the temporary hydraulic support.

[0097] The spring support device 6 includes: a spring box 16 and a telescopic sleeve 19; the spring box 16 is installed on the lower surface of the shield beam 1; the spring box 16 has a plurality of open installation positions; a spring 17 is installed at the bottom of the installation position; one end of the telescopic sleeve 19 is set in the installation position of the spring box 16, and the other end of the telescopic sleeve 19 is set on the chain 5. The telescopic sleeve 19 and the spring 17 before the installation position are in a compressed state, and the telescopic sleeve 19 can slide up and down relative to the spring box 16 to form a uniform support force for the chain 5 (track). The telescopic sleeve 19 tensions the chain 5 (track) so that the chain 5 (track) works completely in a tensioned state, and at the same time, the load-bearing part bears all the weight of the equipment, increasing the friction of the equipment's movement.

[0098] As a further technical solution, the telescopic sleeve 19 is provided with a guide keyway 20; the spring box 16 is provided with a guide key 18, and the guide key 18 is adapted to the guide keyway 20, so that the telescopic sleeve 19 can be extended and contracted within a certain range and will not fall off due to other reasons.

[0099] As a further technical solution, the lower end surface of the telescopic sleeve 19 is provided with a groove adapted to the chain plate of the chain 5 .

[0100] In this embodiment, preferably, the top-mounted walking device includes: a steering correction mechanism; the steering correction mechanism includes: a correction cylinder 24 and a two-way translation cylinder 21; the upper part of the cylinder body of the correction cylinder 24 is pivotally connected to a mounting plate 22 through a rotating shaft 23 and a pressure block; the mounting plate 22 is centrally welded to the upper surface of the shielding plate beam 1; a swing head is connected to the lower part of the cylinder body of the correction cylinder 24; the piston rod of the correction cylinder 24 is connected to an anti-slip shoe 25; the bottom of the anti-slip shoe 25 has a friction plate; the mounting hole of the swing head is hinged to the pin in the middle of the two-way translation cylinder 21; the mounting base of the two-way translation cylinder 21 is symmetrically welded to the lower surface of the shielding plate beam 1; the two output ends of the two-way translation cylinder 21 are fixed to the mounting base by bolts; a sleeve is provided in the middle of the two-way translation cylinder 21, and a pin is provided below the sleeve; the mounting hole of the swing head is hinged to the pin in the middle of the two-way translation cylinder 21. When the cylinder body of the bidirectional translation oil cylinder 21 moves left and right, it drives the deviation correction oil cylinder to rotate and swing left and right.

[0101] When the temporary support needs to be moved, first lower the support to the elevated road 0 below. However, the inner side of the driving wheel and the tension wheel 26 may not be able to fall exactly on the outer side of the shoulder of the elevated road 0, so a correction mechanism is set at the front and rear ends of the shield beam 1. If the relative position of the driving wheel or the tension wheel 26 and the shoulder cannot meet the walking requirements, a correction cylinder is required to correct the deviation. According to needs, the entire support can be lifted up with the correction cylinder, and then the entire equipment can be moved to the left or right with the two-way translation cylinder 21. It is also possible to directly use the two-way translation cylinder 21 to tilt the correction cylinder, and then extend the telescopic rod of the correction cylinder to adjust the equipment to a suitable position (parallel to the road surface axis and the inner side of the driving wheel and the tension wheel 26 falls to the outer side of the shoulder of the elevated road 0).

[0102] Combination Fig.21 , Fig. 22 As shown, in this embodiment, preferably, the crawler track of the top-mounted walking device surrounds the top beam of the temporary hydraulic support to form a closed loop; the lower part of the crawler track is used for the walking of the temporary hydraulic support and / or the multi-arm drilling rig for tunnel excavation; when the crawler track is idling, its upper part can pull the top protection net 40 to lay it on the tunnel roof.

[0103] It is worth noting that the multi-arm drilling rig in this embodiment can be a multi-arm anchor drilling rig or a multi-arm emergency rescue drilling rig, which can be moved on the elevated road in a foldable form to drill holes for water and gas detection, thereby realizing mechanization of the excavation working face.

[0104] In summary, the present invention solves the problems of uneven tunnel floor, narrow space, and difficulty in cross-exchange of excavation and support equipment. The present invention can be applied to relevant equipment for tunnel excavation support, tunnel renovation, and advance support for mining, and has great application prospects in mines with risks of roof collapse, rock burst, and coal and gas outburst.

[0105] Embodiment 2

[0106] Embodiment 2 provides a method for applying the temporary hydraulic support for tunnel excavation and / or the high-altitude walking device of the multi-arm drilling rig. The technical features disclosed in Embodiment 1 are also applicable to this embodiment, and the technical features disclosed in Embodiment 1 will not be described repeatedly.

[0107] This embodiment provides a method for applying the temporary hydraulic support for tunnel excavation and / or the high-altitude traveling device of the multi-arm drilling rig, and the temporary hydraulic support for tunnel excavation and / or the multi-arm drilling rig are moved at high altitude along the elevated road through the top traveling device.

[0108] The elevated road 0 is arranged on various parts of the tunnel boring machine, above the belt conveyor, on a trackless moving linear support or on a rail material transport vehicle. The elevated road 0 is used to provide a walking path for the temporary hydraulic support, and includes: mounting bolts 30, elevated shoulders 31, and elevated road surface 32.

[0109] Elevated road 0 is divided into three situations according to the purpose of the temporary hydraulic support of the top walking device:

[0110] 1) When the temporary hydraulic support of the top walking device is used for tunnel excavation, the elevated road 0 is modified using the on-site tunnel boring machine, and the cutting part, body part and secondary transport part of the tunnel boring machine are modified respectively to meet the requirements of strength, friction and maintenance. The three sections of the modified road surface can ensure the smooth and safe passage of the temporary hydraulic support.

[0111] 2) When the temporary hydraulic support of the top walking device is used for advance support of the tunnel, the elevated road 0 can be a linear support with a moving mechanism, which is convenient for moving back and forth under the temporary hydraulic support and has sufficient supporting strength.

[0112] 3) When the temporary hydraulic support of the top travel device is used for tunnel maintenance, when there is a belt conveyor in the maintenance tunnel, the elevated road 0 can be a sliding trolley erected by the crossbeam of the belt conveyor, which can not only meet the requirements of moving back and forth along the belt frame but also provide a walking path when the gantry hydraulic system needs to move. When there is a material transportation track in the maintenance tunnel, the elevated road 0 can be a road surface formed by rail material transportation carriages + iron plates, so that the elevated road 0 can be formed by local materials and meet the long-distance movement of the temporary hydraulic support.

[0113] Embodiment 3

[0114] Combination Fig.16 , Fig.17As shown, embodiment three provides a side-mounted self-propelled anchor drilling rig. This embodiment is another technical solution that adds a movable anchor drilling system 9 on the basis of embodiment one. The technical features disclosed in embodiment one are also applicable to this embodiment, and the technical features disclosed in embodiment one will not be repeated.

[0115] The second embodiment provides a side-mounted self-moving anchor drilling rig, which includes: a drilling rig body 1000, a rotating mechanism, a translation mechanism and a driving mechanism; the drilling rig body 1000 is connected to the translation mechanism through the rotating mechanism, and the drilling rig body 1000 can swing under the drive of the rotating mechanism, the translation mechanism is mounted on the single-side track 100 of the shielding bracket, and the driving mechanism is used to drive the translation mechanism to slide along the single-side track 100 to drive the drilling rig body 1000 to move back and forth. The side-mounted self-moving anchor drilling rig is installed under the shielding bracket in a side-mounted manner, realizing the horizontal movement and angle adjustment of the drilling rig body 1000. The side-mounted self-moving anchor drilling rig can ensure that the drilling rig body 1000 has more adjustment space, not only can it drill and anchor the tunnel roof, but also can work on both sides of the tunnel, avoiding the disadvantages of the inconvenient position and angle adjustment of the anchor drilling rig in the traditional process, and realizing the fast and accurate support of the anchor machine in actual construction. It is worth explaining that in order to better understand the concept of "side-mounted", when the drilling rig body 1000 swings driven by the rotating mechanism, it can drill both sides of the tunnel; when the drilling rig body 1000 does not swing, the angle of its support anchor is perpendicular to the top plate.

[0116] In this embodiment, preferably, the translation mechanism comprises: a translation slide plate;

[0117] The translation slide is provided with a hanging sliding part 500, which is hung on the single-side track 100 of the shielding bracket (the shielding plate beam 1), and the hanging sliding part 500 is slidably connected with the single-side track 100. In this embodiment, preferably, the hanging sliding part 500 is a side-opening slide structure, and the upper and lower parts of the slide structure have L-shaped notches 200 arranged oppositely, so that it can be completely hung on the single-side track 100 of the shielding bracket. In this embodiment, for the single-side track 100, it can be a rectangular track. The single-side track 100 includes: a track body 400 and a transverse connecting plate 300 welded to the upper end of the track body 400, the transverse connecting plate 300 is connected to the middle longitudinal plate of the I-shaped steel of the shielding bracket, and the lower end of the track body 400 is connected to the lower surface of the I-shaped steel of the shielding bracket. The hanging sliding part 500 is hung on the upper and lower ends of the track body 400 respectively.

[0118] Among them, the translational skateboard is provided with a driving mounting portion, and the driving mechanism is installed on the driving mounting portion; in this embodiment, preferably, the driving mounting portion is a plurality of mounting holes opened on one side edge (thickness direction) of the translational skateboard, and the plurality of mounting holes are used to connect with the bearing seat 800 of the driving mechanism.

[0119] The translation slide is provided with a rotating mounting portion, and the rotating mechanism is mounted on the rotating mounting portion. In this embodiment, preferably, the rotating mounting portion is a central hole penetrating the end surface of the translation slide. Of course, the central hole can be installed with a bearing assembly and a bearing cover plate.

[0120] In this embodiment, preferably, the rotating mechanism includes: a rotating disk 1100;

[0121] A fixing clamp is provided on one side of the rotating disk 1100 (of course, the fixing clamp is not limited and can be flexibly set according to actual needs, for example: the fixing clamp includes a first fixing arm and a second fixing arm, and the first fixing arm and the second fixing arm are used to fix the drilling rig body 1000, such as welding), and the fixing clamp fixes the drilling rig body 1000; a rotating shaft is provided on the other side of the rotating disk 1100 (similarly, the type of the rotating shaft is not limited, it can be a rotating shaft structure), and the rotating shaft is installed on the rotating mounting part of the translation slide through the bearing seat 800.

[0122] For the rotating disk 1100, there are two designs;

[0123] First, as a further technical solution, the end surface of the rotating disk 1100 is provided with two centrally symmetrical arc grooves (the arc grooves are provided cocentrically with the rotating disk 1100). Correspondingly, a positioning bolt is provided at a corresponding position of the translation slide, and the positioning bolt is inserted into the arc groove, and the positioning effect of the rotating disk 1100 is achieved by tightening the positioning bolt.

[0124] Second, as a further technical solution, two sections of centrally symmetrical positioning teeth are provided at the edge of the rotating disk 1100. Each section of the positioning teeth is correspondingly engaged with a telescopic limit pin, the end of the telescopic limit pin is provided with a tooth edge structure engaged with the positioning teeth, and the other end of the telescopic limit pin is provided with a sleeve spring and fixed in the shaft hole of the fixed seat on the translation slide.

[0125] In this embodiment, preferably, the driving mechanism includes: a bearing seat 800, a driving sprocket 900, a transmission gear 700 and a transmission rack 600; the bearing seat 800 is fixed to the driving mounting portion of the translation slide; the driving sprocket 900 and the transmission gear 700 are coaxially mounted at both ends of the bearing seat 800; the transmission rack 600 is arranged on the lower surface of the shielding bracket (arranged along its length), and the transmission gear 700 is meshed and connected with the transmission rack 600. Of course, the driving sprocket 900 can be connected to the motor 1200 or the motor by a belt to realize the automatic driving function. In addition, manual driving is also possible.

[0126] Embodiment 4

[0127] Combination Figure 1 As shown, Example 4 provides a specific method of a temporary hydraulic support. This example is another technical solution added on the basis of Example 1, Example 2 and Example 3. The technical features disclosed in Example 1, Example 2 and Example 3 are also applicable to this example. The technical features disclosed in Example 1, Example 2 and Example 3 will not be described repeatedly.

[0128] In this embodiment, preferably, the temporary hydraulic support includes: a shielding plate beam 1, a telescopic mechanism 2 and an anchor drilling system 9; the shielding plate beam 1 is staggeredly connected by cross beams and longitudinal beams; the shielding plate beam 1 has a plurality of drilled skylights 3; the shielding plate beam 1 is provided with a telescopic mechanism 2 under the cross beams on both sides; the telescopic mechanism 2 can realize telescopic movement in the vertical direction; the shielding plate beam 1 is hoisted with an anchor drilling system 9 under the cross beams on both sides; the anchor drilling system 9 slides through a single-sided track arranged on the cross beam; the top-mounted walking device is arranged in the middle of the shielding plate beam 1 along the direction of the longitudinal beam.

[0129] Preferably, the telescopic mechanism is a bidirectional extending mechanism that can extend above and below the shielding plate beam at the same time, and the bidirectional extending mechanism is supported on the tunnel bottom plate and the tunnel top plate, thereby supporting the shielding plate beam at a set height below the tunnel top plate.

[0130] The two-way extending mechanism is controlled to extend downward to rest on the tunnel bottom plate, and to extend upward to rest on the tunnel roof plate, so as to realize two-way support and fixation on the upper and lower sides of the shielding beam plate, thereby fixing the shielding bracket at a set height below the tunnel roof plate. If the tunnel roof plate is uneven, the two-way extension and double-sided fixation can leave a gap between the shielding beam and the tunnel roof plate to avoid the protruding parts.

[0131] Furthermore, a plurality of the bidirectional extending mechanisms are arranged on the shielding plate beam, and the shielding plate beam is lifted to a set height by controlling the extending length of each bidirectional extending mechanism above and below the shielding plate beam.

[0132] The tunnel roof or tunnel floor is uneven. By controlling the different extension lengths of each two-way extension mechanism, the protective beam plate is ensured to remain at the set level to avoid torque damage.

[0133] Furthermore, the bidirectional extension mechanism comprises: an upper piston cylinder and a lower piston cylinder which are arranged to abut against each other in opposite directions, the piston rod of the upper piston cylinder extends upward, the piston rod of the lower piston cylinder extends downward, and the shield plate beam is fixed on the cylinder body of the upper piston cylinder and / or the lower piston cylinder.

[0134] Furthermore, the upper piston cylinder and the lower piston cylinder are arranged along the same axis.

[0135] Avoid damage caused by the combined torque generated by the two piston cylinders in the two-way extension mechanism acting on the shield beam.

[0136] Furthermore, the upper piston cylinder and the lower piston cylinder are arranged alternately so that their axes are parallel.

[0137] It is necessary to ensure that the resultant moment on the shield beam is zero.

[0138] Furthermore, a load-bearing crossbeam is provided, the lower piston cylinder located on the same side is provided on the lower side of the load-bearing crossbeam, and the upper piston cylinder is provided on the upper side of the load-bearing crossbeam.

[0139] Furthermore, a drilled skylight is provided on the shielding plate beam.

[0140] The anchor (cable) drilling equipment drills holes at the top of the tunnel through the drilling skylight for installing anchors (cables).

[0141] Furthermore, the shield plate beam is provided with a mounting hole for the bidirectional extension mechanism.

[0142] Furthermore, the bidirectional jacking mechanism is arranged on both sides of the shield plate beam, and the spacing between the bidirectional jacking mechanisms on both sides is greater than the width of the tunnel boring machine.

[0143] Avoid interference between the tunnel boring machine and the two-way jacking mechanism.

[0144] Furthermore, the tunnel boring machine is provided with a bearing mechanism that carries the shielding support to move back and forth along the tunnel.

[0145] The clamping device can fix the shield support on the tunnel boring machine, so that the shield support moves with the tunnel boring machine in the tunnel, and the tunnel boring machine transports the shield support to the temporary support area.

[0146] Furthermore, the shielding support is provided with a moving driving mechanism for driving it to move along the extension direction of the tunnel.

[0147] The mobile driving mechanism can enable the shielding support to move in the tunnel by itself, and the mobile driving mechanism transports the shielding support to the temporary support area.

[0148] Furthermore, the shielding plate beam is an integrally formed structure, or a spliced ​​structure, and the shielding plate beam of the spliced ​​structure is a concave and convex spliced ​​plate connected into a whole by high-strength bolts.

[0149] The above-mentioned tunnel shield support support method comprises the following steps:

[0150] Step 1: According to ∑nP 下1 ≤G, control the two-way extension mechanism to extend downward until all the two-way extension mechanisms are in contact with the bottom plate of the roadway, P 下1 is the downward extension force of the bidirectional extension mechanism, and G is the gravity of the shield beam;

[0151] Step 2: According to ∑nP 下2 >G, increase the downward extension force of the two-way extension mechanism to lift the shield beam to the set height, P 下2 It is the downward extension force of the bidirectional extension mechanism after one-time pressurization;

[0152] Step 3: According to ∑n P 上1 ≤∑n P 下2 -G, control the two-way jacking mechanism to jack up until all the two-way jacking mechanisms are in contact with the tunnel roof, P 上1 It is the upward extension force of the bidirectional extension mechanism;

[0153] Step 4: According to P 下 =P 上 =P 标 , increase the upward and downward extension force of the bidirectional extension mechanism to the set value, where P 下 is the downward extension force of the bidirectional extension mechanism after secondary pressurization, P 上 is the upward extension force of the two-way extension mechanism after pressurization, P 标 is the set top extension force.

[0154] The above technical solution is adopted, and the two-way jacking mechanism is supported on the upper surface of the tunnel floor and the lower surface of the tunnel roof. This support method is more stable, preventing the shield beam from moving and tipping over, and the height of the shield beam can be adjusted within a certain range, avoiding the shield beam from contacting the uneven tunnel roof in the traditional process and twisting and deforming, protecting the safety of the personnel performing anchor support under the tunnel excavation shielding bracket; the shield beam is provided with multiple skylights for anchor (cable) operations, so that multiple anchor drilling rigs can operate at the same time, greatly reducing the drilling operation time, improving the drilling efficiency and tunneling speed; the shield beam is connected into a whole by high-strength bolts of the concave and convex splicing plate. At the same time, the underground transportation, installation and operation methods of the present invention are simpler, lower in cost, and more widely used. The support method provided by the present invention can reduce the torque of the shield beam during the entire support process when the tunnel roof and tunnel floor are uneven, ensure the support strength of the shield beam, and provide safety protection for the operators working under the shield beam.

[0155] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A temporary hydraulic support for tunnel excavation and a multi-arm drilling rig high-altitude walking method, characterized in that: The method comprises the following steps: a temporary hydraulic support and a multi-arm drilling rig for tunnel excavation are moved in the air along an elevated road by means of a top-mounted walking device; the crawler belt of the top-mounted walking device surrounds the top beam of the temporary hydraulic support to form a closed loop; the lower part of the crawler belt is used for the temporary hydraulic support and the multi-arm drilling rig for tunnel excavation to travel; the upper part of the crawler belt can pull the top protection net to lay the tunnel roof when the crawler belt is idling; The top-mounted walking device comprises: a driving device, a tensioning device, a drag chain device, a steering correction mechanism, a spring support device and a crawler belt; the driving device is connected to a driving wheel arranged at one end of a temporary hydraulic support for tunnel excavation; a driven wheel is arranged at the other end of the temporary hydraulic support for tunnel excavation; the crawler belt is arranged between the driving wheel and the driven wheel; the spring support device is arranged below the temporary hydraulic support for tunnel excavation, and is used to provide uniform support force to the crawler bottom chain of the top-mounted walking device; the tensioning device is connected to a driven wheel arranged at one end of the temporary hydraulic support for tunnel excavation, and is used to The crawler belt between the driven wheel and the driven wheel is tensioned and adjusted; the drag chain device is used to keep the crawler belt at a preset height and position; the temporary hydraulic support includes: a shielding plate beam and a telescopic mechanism; the shielding plate beam is staggeredly connected by a cross beam and a longitudinal beam; the shielding plate beam has a plurality of drilled skylights; a telescopic mechanism is arranged under the cross beams on both sides; the telescopic mechanism can realize telescopic movement in the vertical direction; the top-mounted walking device is arranged in the middle of the shielding plate beam along the longitudinal beam direction; an anchor drilling system is hoisted on the temporary hydraulic support; the anchor drilling system slides through a single-side track arranged on the cross beam; The driving device comprises: a driving motor, a transmission shaft, a bearing seat and a balancing wheel; the driving motor is connected to the transmission shaft; the transmission shaft is connected to the shield beam through a plurality of bearing seats; the two driving wheels are respectively installed at the middle position of the transmission shaft; the two balancing wheels are respectively installed at the proximal end and the distal end of the transmission shaft; The tensioning device comprises a tensioning wheel, a tensioning wheel bracket and a tensioning oil cylinder; the cylinder body of the tensioning oil cylinder is installed on the shielding plate beam; the piston rod of the tensioning oil cylinder is connected to the tensioning wheel bracket; the tensioning wheel bracket is installed with a tensioning wheel; The steering correction mechanism includes: a correction cylinder and a two-way translation cylinder; the upper part of the cylinder body of the correction cylinder is pivotally connected to a mounting plate through a rotating shaft and a pressure block; the mounting plate is centrally welded to the upper surface of the shield plate beam; the lower part of the cylinder body of the correction cylinder is connected to a swing head; the piston rod of the correction cylinder is connected to an anti-slip boot; the bottom of the anti-slip boot has a friction plate; the mounting base of the two-way translation cylinder is symmetrically welded to the lower surface of the shield plate beam; the two output ends of the two-way translation cylinder are fixed to the mounting base by bolts; a sleeve is provided in the middle of the two-way translation cylinder, and a pin is provided below the sleeve; the mounting hole of the swing head is hinged to the pin in the middle of the two-way translation cylinder.

2. A temporary hydraulic support for tunnel excavation and a multi-arm drilling rig high-altitude walking device, characterized in that: include: A top-mounted walking device for moving a temporary hydraulic support and a multi-arm drilling rig for tunnel excavation along an elevated road, wherein the top-mounted walking device is used to execute the method for high-altitude walking of a temporary hydraulic support and a multi-arm drilling rig for tunnel excavation as described in claim 1.

3. The temporary hydraulic support for tunnel excavation and the high-altitude walking device for multi-arm drilling rigs according to claim 2 is characterized in that: The spring support device comprises: a spring box and a telescopic sleeve; The spring box has a plurality of open mounting positions; a spring is installed at the bottom of each mounting position; one end of the telescopic sleeve is arranged in the mounting position of the spring box, and the other end of the telescopic sleeve is abutted against the chain of the crawler track, and the telescopic sleeve can slide up and down relative to the spring box to form a uniform supporting force for the chain of the crawler track.

4. The temporary hydraulic support for tunnel excavation and the high-altitude walking device for multi-arm drilling rigs according to claim 3 is characterized in that: The telescopic sleeve is provided with a guide keyway; the spring box is provided with a guide key, and the guide key is adapted to the guide keyway.

5. The temporary hydraulic support for tunnel excavation and the high-altitude walking device for multi-arm drilling rigs according to claim 4 is characterized in that: The lower end surface of the telescopic sleeve is provided with a groove matched with the crawler chain.

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