A compensating support frame assembly and a tunnel drilling vehicle

Abstract

This invention relates to the field of tunnel drilling operations, specifically a tunnel drilling device and a tunnel drilling vehicle. The compensating support frame assembly includes a support frame and an arc-shaped track. The support frame and the arc-shaped track are retractably connected via a first telescopic device. A connecting support is slidably mounted on the arc-shaped track. The support telescopic device is hinged to the support frame via a hinge shaft. When the support telescopic device is in the abutting state, it abuts against the arc-shaped track; when the support telescopic device is in the idle state, there is a gap between it and the arc-shaped track. This compensating support frame assembly effectively reduces the eccentric bending moment borne by the first telescopic device while significantly increasing the stability of the arc-shaped track, thereby effectively reducing the number of first telescopic devices required for synchronous telescopic movement and effectively lowering control costs.

Description

Technical Field

[0001] This invention relates to the field of tunnel drilling operations, and in particular to a tunnel drilling equipment and a tunnel drilling vehicle. Background Technology

[0002] Currently, both domestically and internationally, tunnel drilling is mostly carried out using a combination of manual labor and robotic arms. Both the manual laborer and the robotic arm, equipped with drilling machines, are mounted on engineering vehicles. The manual laborer uses a handheld metal detector, often a rebar locator or metal detector, to locate areas on the tunnel wall without rebar. Then, the robotic arm uses the drilling machine to drill holes at the detected locations.

[0003] Because the tunnel is much higher than the height of the operators, even if the operators stand on the project, they still have to repeatedly lift the metal detector over their heads to perform the detection work, which is very labor-intensive for manual operations.

[0004] To address the aforementioned issues, those skilled in the art are currently researching, in an undisclosed manner, the alternative to manual drilling by installing an arc-shaped track on a gantry and sliding a drill gun on the arc-shaped track. A telescopic structure is used to control the arc-shaped track's movement towards or away from the gantry, allowing the drill gun to move circumferentially and radially from the tunnel cross-section. However, in this structure, since the telescopic structure acts as a support for the arc-shaped track, when the drill gun moves to a position far from the telescopic structure on the arc-shaped track, the drill gun's own weight and reverse impact force will generate a large eccentric bending moment on the telescopic structure, which is detrimental to its stress distribution. If multiple telescopic structures are installed, they need to extend and retract synchronously, but this results in high control costs. Summary of the Invention

[0005] The purpose of this invention is to address the problem in the prior art where, when drilling is performed by setting an arc-shaped track on a gantry and sliding a drill gun on the arc-shaped track to replace manual drilling, the weight of the drill gun and the reverse impact force will generate a large eccentric bending moment on the telescopic structure, which is very detrimental to the stress on the telescopic structure. This invention provides a tunnel drilling device and its construction method.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A compensating support frame assembly includes a support frame and an arc-shaped track. The support frame and the arc-shaped track are retractably connected via a first telescopic device in a direction toward the outside of the support frame. A connecting support is slidably disposed on the arc-shaped track. The support telescopic device is hinged to the support frame via a hinge shaft. The support telescopic device has an idle state and an abutting state.

[0008] When the support telescopic device is in the contact state, the support telescopic device is in contact with the arc-shaped track; when the support telescopic device is in the idle state, there is a gap between the support telescopic device and the arc-shaped track.

[0009] The present application describes a compensating support frame assembly. The support frame is telescopically connected to the arc-shaped track via a first telescopic device. The first telescopic device serves as a support for the arc-shaped track. During operation, as the connecting support moves on the arc-shaped track, a large eccentric bending moment is generated on the first telescopic device when the connecting support moves to a position far from the first telescopic device. If multiple first telescopic devices are installed, they need to extend and retract synchronously, which results in high control costs. Therefore, a supporting telescopic device is hinged to the support frame. When the first telescopic device extends and retracts to its position, and the connecting support moves to the drilling position, the supporting telescopic device can extend and retract to abut against the arc-shaped track near the connecting support, thereby effectively reducing the eccentric bending moment borne by the first telescopic device and greatly increasing the stability of the arc-shaped track. This effectively reduces the number of first telescopic devices required for synchronous extension and retraction, thus effectively lowering control costs.

[0010] Preferably, the supporting telescopic device includes an abutting telescopic device and a second driving device. The abutting telescopic device can abut against the arc-shaped track support. The abutting telescopic device is hinged to the support frame through a hinge shaft. The hinge shaft is fixed relative to the abutting telescopic device. A driven gear is sleeved and connected on the hinge shaft, and a driving gear is driven and connected on the second driving device. The driving gear drives the driven gear to rotate along the length direction of the arc-shaped track.

[0011] Preferably, the front end of the abutting telescopic device is rotatably fitted with an abutting wheel, and an abutting groove is provided on the arc-shaped track, the abutting groove abutting with the abutting wheel.

[0012] Preferably, there are at least two abutment grooves on the arc-shaped track, and at least two abutment grooves are arranged on the inner side of the arc-shaped track along the length direction of the arc-shaped track, and all the abutment grooves face the hinge axis.

[0013] In use, depending on the different positions of the connecting support on the arc-shaped track, the support telescopic device can cooperate with the abutment groove that is closer to the connecting support, thereby making the stress situation of the arc-shaped track more optimal.

[0014] Preferably, at least two arc-shaped tracks are supported on the support frame, adjacent arc-shaped tracks on the same support frame are spaced apart, and at least two arc-shaped tracks are arranged circumferentially along the support frame.

[0015] Preferably, the support telescopic device is capable of supporting two adjacent arc-shaped tracks.

[0016] Preferably, the support telescopic device is capable of supporting the ends of two adjacent arc-shaped tracks.

[0017] This application also discloses a tunnel drilling vehicle, including a frame and a support frame assembly as described in this application, wherein the support frame is disposed on the frame and a drill gun for drilling is connected to the connecting support.

[0018] The tunnel drilling vehicle described in this application includes a frame and a compensating support frame assembly as described in this application. The support frame and the drill gun form an integral connection with the arc-shaped track via a first telescopic device. The first telescopic device serves as a support for the arc-shaped track. During operation, as the integral support frame and the drill gun move on the arc-shaped track, a large eccentric bending moment is generated on the first telescopic device when the connecting support moves to a position far from the first telescopic device. If multiple first telescopic devices are installed, they need to extend and retract synchronously, which results in high control costs. Therefore, a support telescopic device is hinged to the support frame. When the first telescopic device extends and retracts to its position, and the connecting support moves to the drilling position, the support telescopic device can extend and retract to abut against the arc-shaped track near the connecting support, thereby effectively reducing the eccentric bending moment borne by the first telescopic device and greatly increasing the stability of the arc-shaped track. This effectively reduces the number of first telescopic devices required for synchronous extension and retraction, thus effectively reducing control costs.

[0019] Preferably, the support frame is movable relative to the vehicle frame along the vehicle frame's travel direction. Preferably, the vehicle frame is equipped with road wheels for the vehicle frame to travel on.

[0020] Preferably, the vehicle frame is equipped with rail-shaped wheels for the vehicle frame to travel on the rails. This application also discloses a tunnel drilling construction method, based on the tunnel drilling vehicle described in this application, which includes the following steps:

[0021] S1. Move the vehicle frame to a predetermined position inside the tunnel;

[0022] S2. Use the first telescopic device to extend the arc-shaped track close to the inner wall of the tunnel until the drill gun can drill into the inner wall of the tunnel and then stop the extension of the first telescopic device.

[0023] S3. Extend the support telescopic device and make the support telescopic device abut against the arc-shaped track;

[0024] S4. The connecting support slides relative to the arc-shaped track, driving the drill gun to the drilling position and performing drilling operations. In the tunnel drilling construction method described in this application, during operation, the support frame and drill gun form a whole on the arc-shaped track...

[0025] When the track moves and the connecting support moves to a position far from the first telescopic device, a large eccentric bending moment is generated on the first telescopic device. If multiple first telescopic devices are set, they need to extend and retract synchronously, which results in high control costs. Therefore, a supporting telescopic device is hinged on the support frame. When the first telescopic device extends and retracts to its position and the connecting support moves to the drilling position, the supporting telescopic device can extend and retract to abut against the arc track near the connecting support, thereby effectively reducing the eccentric bending moment borne by the first telescopic device and greatly increasing the stability of the arc track. This effectively reduces the number of first telescopic devices that need to extend and retract synchronously, thus effectively reducing control costs.

[0026] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0027] 1. The support frame assembly capable of compensating for support described in this application is connected to the arc-shaped track via a first telescopic device. The first telescopic device serves as a support for the arc-shaped track. During operation, as the connecting support moves on the arc-shaped track, when the connecting support moves to a position far from the first telescopic device, a large eccentric bending moment is generated on the first telescopic device. If multiple first telescopic devices are set, they need to extend and retract synchronously, which results in high control costs. Therefore, a support telescopic device is hinged to the support frame. When the first telescopic device extends and retracts to its position, and the connecting support moves to the drilling position, the support telescopic device can extend and retract to abut against the arc-shaped track near the connecting support, thereby effectively reducing the eccentric bending moment borne by the first telescopic device and greatly increasing the stability of the arc-shaped track. This effectively reduces the number of first telescopic devices required for synchronous extension and retraction, thus effectively reducing control costs.

[0028] 2. The tunnel drilling vehicle described in this application includes a frame and a support frame assembly capable of compensating for the borehole as described in this application. The support frame and the drill gun are connected to the arc-shaped track via a first telescopic device. The first telescopic device serves as a support for the arc-shaped track. During operation, as the support frame and the drill gun move on the arc-shaped track, a large eccentric bending moment is generated on the first telescopic device when the connecting support moves to a position far from the first telescopic device. If multiple first telescopic devices are installed, they need to extend and retract synchronously, which results in high control costs. Therefore, a support telescopic device is hinged to the support frame. When the first telescopic device extends and retracts to its position, and the connecting support moves to the drilling position, the support telescopic device can extend and retract to abut against the arc-shaped track near the connecting support, thereby effectively reducing the eccentric bending moment borne by the first telescopic device and greatly increasing the stability of the arc-shaped track. This effectively reduces the number of first telescopic devices required for synchronous extension and retraction, thus effectively reducing control costs.

[0029] The tunnel drilling construction method described in this application involves the following steps: During operation, the support frame and drill gun move as a whole on an arc-shaped track. When the connecting support moves to a position far from the first expansion joint, a large eccentric bending moment is generated on the first expansion joint. If multiple first expansion joints are installed, they need to extend and retract synchronously, resulting in high control costs. Therefore, a support expansion joint is hinged to the support frame. When the first expansion joint extends and retracts to its position, and the connecting support moves to the drilling position, the support expansion joint can extend and retract to abut against the arc-shaped track near the connecting support, thereby effectively reducing the eccentric bending moment borne by the first expansion joint and greatly increasing the stability of the arc-shaped track. This effectively reduces the number of first expansion joints required for synchronous extension and retraction, thus significantly lowering control costs. Attached Figure Description

[0030] Figure 1 This is a structural schematic diagram of a support frame assembly capable of compensating for support according to the present invention. The support telescopic device is in an idle state, and a single abutment groove is provided on one side of the first telescopic device.

[0031] Figure 2 This is a structural schematic diagram of a support frame assembly capable of compensating for support according to the present invention. The support telescopic device is in an abutting state, and a single abutting groove is provided on one side of the first telescopic device.

[0032] Figure 3 This is a structural schematic diagram of a support frame assembly capable of compensating for support according to the present invention. The support telescopic device is in an idle state, and several abutment grooves are provided on one side of the first telescopic device.

[0033] Figure 4This is a structural schematic diagram of a support frame assembly capable of compensating for support according to the present invention. The support telescopic device is in an abutting state, and several abutting grooves are provided on one side of the first telescopic device.

[0034] Figure 5 This is a structural schematic diagram of the support telescopic device of the present invention.

[0035] Figure 6 This is a structural schematic diagram of a support frame assembly capable of compensating for support according to the present invention. The support telescopic device is in an abutting state, and several abutting grooves are provided on one side of the first telescopic device.

[0036] Figure 7 This is a longitudinal section assembly diagram of the first drive mechanism of the present invention: first hoisting mechanism + first rope.

[0037] Figure 8 This is the invention Figure 7 Enlarged schematic diagram of section A in the middle.

[0038] Figure 9 This is the invention Figure 7 Enlarged schematic diagram of section B in the middle.

[0039] Figure 10 This is the invention Figure 7 Schematic diagram of cross-section along the CC direction.

[0040] Figure 11 This is a schematic diagram showing the relative position of the transition pulley and the first shaft of the present invention.

[0041] Figure 12 This is the invention Figure 7 Schematic diagram of cross-section along the DD direction.

[0042] Figure 13 This is the invention Figure 12 Enlarged schematic diagram of section E in the middle.

[0043] Figure 14 This is an assembly diagram of the first drive mechanism of the present invention, showing an arc-shaped toothed section and a first gear.

[0044] Figure 15 This is a schematic diagram of the assembly of the first driving mechanism and the first arc-shaped track of the present invention.

[0045] Figure 16 This is the invention Figure 15 The first telescopic device is removed from the AA-direction cross-sectional view.

[0046] Figure 17 This is a schematic diagram of the structure of the abutment plate of the present invention.

[0047] Figure 18 This is a structural schematic diagram of a tunnel drilling vehicle according to the present invention.

[0048] Figure 19 This is an assembly diagram of a support telescopic device on a tunnel drilling vehicle according to the present invention.

[0049] Figure 20 This is a schematic diagram of the structure of a tunnel drilling device according to the present invention.

[0050] Figure 21 This is a schematic diagram of the assembly of the first arc-shaped track with the metal detection device and the marking device of the present invention.

[0051] Figure 22 This is a schematic diagram of the assembly of the first arc-shaped track, the identification device, and the drill gun of the present invention.

[0052] Figure 23 This is a schematic diagram of the metal detection device of the present invention detecting a location F1 where a hole can be drilled.

[0053] Figure 24 This is a schematic diagram of the drill gun of the present invention drilling a hole in the position area F1.

[0054] Figure 25 This is a schematic diagram of the installation of the positioning device of the present invention.

[0055] Figure 26 This is a schematic diagram of the structure of the present invention, in which the front frame is on one vehicle frame and the rear frame is on another vehicle frame. Detailed Implementation

[0056] The present invention will now be described in detail with reference to the accompanying drawings.

[0057] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0058] Example 1

[0059] This embodiment describes a compensating support frame assembly, including a support frame 13 and an arc-shaped track 14. The support frame 13 and the arc-shaped track 14 are retractably connected via a first telescopic device 15 along the direction towards the outside of the support frame 13. A connecting support 16 is slidably disposed on the arc-shaped track 14. A support telescopic device 217 is hinged to the support frame 13 via a hinge shaft 219. The support telescopic device 217 has an idle state and an abutting state: when the support telescopic device 217 is in the abutting state, it supports and abuts against the arc-shaped track 14; when the support telescopic device 217 is in the idle state, there is a gap between the support telescopic device 217 and the arc-shaped track 14.

[0060] like Figure 5 As shown, the supporting telescopic device 217 includes an abutting telescopic device 218 and a second driving device 220. The abutting telescopic device 218 can support and abut against the arc-shaped track 14. The abutting telescopic device 218 is hinged to the support frame 13 through a hinge shaft 219. The hinge shaft 219 is fixed relative to the abutting telescopic device 218. A driven gear 224 is sleeved and connected on the hinge shaft 219, and a driving gear 223 is driven and connected on the second driving device 220. The driving gear 223 drives the driven gear 224 to rotate along the length direction of the arc-shaped track 14.

[0061] During construction, based on the position of the connecting support 16 on the arc track 14, the second drive device 220 drives the drive gear 223 to rotate. The drive gear 223 drives the driven gear 224 to rotate along the length of the arc track 14, adjusting the pointing position of the abutment telescopic device 218. Then, in conjunction with the extension and retraction of the abutment telescopic device 218, the purpose of supporting the extension and retraction of the telescopic device 217 and abutting the arc track 14 at a position near the connecting support 16 is achieved. The second drive device 220 is preferably a motor.

[0062] Specifically, the driving gear 223 meshes with the driven gear 224.

[0063] Based on the above, in a further preferred embodiment, the front end of the abutting telescopic device 218 is rotatably fitted with an abutting wheel 225, and an abutting groove 226 is provided on the arc-shaped track 14. The abutting groove 226 abuts and engages with the abutting wheel 225, thereby preventing the abutting telescopic device 218 from being unstable in abutting with the arc-shaped track 14.

[0064] like Figure 17 As shown, an abutment plate 227 is connected to the inner side of the arc-shaped track 14. The abutment plate 227 is L-shaped or C-shaped, and the abutment plate 227 and the inner side of the arc-shaped track 14 together form the abutment groove 226.

[0065] This embodiment describes a support frame assembly capable of compensating for support. A first telescopic device 15 is connected to the inner bottom surface of an arc-shaped track 14 to support the track 14. The arc-shaped track 14 is provided with an abutment groove 226, and one abutment groove 226 is provided on one side of the first telescopic device 15, typically located at the end of the arc-shaped track 14. Figure 1 As shown, when the supporting telescopic device 217 is in an idle state, there is a gap between the supporting telescopic device 217 and the arc-shaped track 14, and there is no interaction force between the supporting telescopic device 217 and the arc-shaped track 14; Figure 2As shown, when the connecting support 16 moves relative to the arc-shaped track 14 to the side where the abutment groove 226 is provided, the supporting telescopic device 217 extends, so that the front end of the supporting telescopic device 217 abuts and engages with the abutment groove 226, thereby enabling the supporting telescopic device 217 to support and abut against the arc-shaped track 14.

[0066] like Figure 3 and 4 As shown, in a further preferred embodiment, the arc-shaped track 14 has at least two abutment grooves 226. These at least two abutment grooves 226 are arranged along the length of the arc-shaped track 14 on its inner side, and all abutment grooves 226 face the hinge shaft 219. In use, depending on the different positions of the connecting support 16 on the arc-shaped track 14, the support telescopic device 217 can cooperate with the abutment groove 226 closer to the connecting support 16, thereby optimizing the stress distribution on the arc-shaped track 14.

[0067] like Figure 6 As shown, in a further preferred manner based on the above, at least two arc-shaped tracks 14 are supported on the support frame 13, and adjacent arc-shaped tracks 14 on the same support frame 13 are spaced apart. At least two arc-shaped tracks 14 are arranged circumferentially along the support frame 13. In use, at least two arc-shaped tracks 14 are generally arranged circumferentially along the tunnel cross-section.

[0068] like Figure 6 As shown, the support telescopic device 217 can support two adjacent arc-shaped tracks 14, and the connecting supports 16 on the adjacent arc-shaped tracks 14 can move and operate in staggered shifts to save the number of support telescopic devices 217, thereby saving costs.

[0069] Based on the above, in a further preferred manner, the support telescopic device 217 is capable of supporting the ends of two adjacent arc-shaped tracks 14.

[0070] Specifically, the support frame 13 is a portal frame structure, truss structure or box girder structure; the arc-shaped track 14 is set on the outside of the support frame 13.

[0071] Specifically, the first telescopic device 15 is preferably an electric cylinder or a hydraulic telescopic cylinder; the supporting telescopic device 217 is preferably an electric cylinder or a hydraulic telescopic cylinder; and the abutting telescopic device 218 is preferably an electric cylinder or a hydraulic telescopic cylinder.

[0072] The beneficial effects of this embodiment: The support frame assembly capable of compensating for support described in this embodiment has a support frame 13 and an arc-shaped track 14 connected by a first telescopic device 15. The first telescopic device 15 serves as a support for the arc-shaped track 14. During operation, as the connecting support 16 moves on the arc-shaped track 14, when the connecting support 16 moves to a position far from the first telescopic device 15, it generates a large eccentric bending moment on the first telescopic device 15. If multiple first telescopic devices 15 are provided, they need to extend and retract synchronously. Its control... Due to the high cost, a support telescopic device 217 is hinged to the support frame 13. When the first telescopic device 15 extends and retracts to its position, and the connecting support 16 moves to the drilling position, the support telescopic device 217 can extend and retract to abut against the arc track 14 near the connecting support 16, thereby effectively reducing the eccentric bending moment borne by the first telescopic device 15 and greatly increasing the stability of the arc track 14. This effectively reduces the number of first telescopic devices 15, thereby reducing the number of first telescopic devices 15 that need to extend and retract synchronously and effectively reducing its control cost.

[0073] Example 2

[0074] The support frame assembly capable of compensating for support described in this embodiment differs from that in Embodiment 1 in that: the connecting support 16 and the arc-shaped track 14 move relative to each other via a first driving mechanism. The first driving mechanism preferably employs one of the following two methods:

[0075] Method 1, such as Figures 7-13 As shown, the arc-shaped track 14 has an arc-shaped groove 19. The first driving mechanism includes a winch mechanism 17. Both ends of the arc-shaped groove 19 are equipped with the winch mechanism 17. Both winch mechanisms 17 are connected to the connecting support 16 via transmission ropes 18. The winch mechanism 17 can wind up and unwind the transmission ropes 18. The connecting support 16 is equipped with rollers 117 that roll in cooperation with the arc-shaped groove 19. By wind up and unwinding the corresponding transmission ropes 18 at both ends of the arc-shaped track 14, the connecting support 16 is pulled along the arc-shaped groove 19.

[0076] The metal detector 11 and the marking device 12 reciprocate on the shaped track 14, thereby achieving the purpose of detection and marking along the circumference of the tunnel inner wall by the metal detector 11 and the marking device 12, or achieving the purpose of identification device 21 and drill rig 22 identification marking part 10 and drilling along the circumference of the tunnel inner wall.

[0077] During operation, the winch mechanisms 17 at both ends of the arc-shaped track 14 operate synchronously, or the rope-retracting speed of the winch mechanism 17 at the traction end is slightly lower than the rope-releasing speed of the winch mechanism 17 at the traction end. For example, the connecting support 16 faces... Figure 7When moving to the right, the rope winding speed of the right winch mechanism 17 should be lower than the rope unwinding speed of the left winch mechanism 17 to prevent the transmission rope 18 from breaking due to excessive tension, but the speed difference between the two should not be too large.

[0078] Specifically, such as Figure 8 As shown, both ends of the arc-shaped rail groove 19 are provided with limiting structures 116, which are detachably connected to the arc-shaped rail 14. The limiting structure 116 is specifically a plate structure, and the limiting structure 116, the connecting support 16, and the arc-shaped rail 14 are detachably connected by bolts or adhesive.

[0079] like Figure 10 and Figure 11 As shown, the top of the arc-shaped rail groove 19 has an arc-shaped opening 118, and the connecting support 16 passes through the arc-shaped opening 118. A wear-resistant structure 130 is detachably connected to the side wall of the arc-shaped opening 118, and a corresponding wear-resistant structure 130 is also detachably connected to the connecting support 16. During the reciprocating motion of the connecting support 16 on the arc-shaped rail 14,

[0080] The connecting support 16 rubs against the sidewall of the arc-shaped groove 118. Therefore, a wear-resistant structure 130 is detachably connected to the sidewall of the arc-shaped groove 118, and a corresponding wear-resistant structure 130 is also detachably connected to the connecting support 16 to increase the service life of the connecting support 16 and the arc-shaped track 14. The arc-shaped groove 118 and the wear-resistant structure 130 are detachably connected.

[0081] The support 16 is detachably connected to the corresponding wear-resistant structure 130, so that when the wear-resistant structure 130 reaches its wear life, only the wear-resistant structure 130 needs to be replaced, without replacing the connecting support 16 or the arc track 14, thus saving costs.

[0082] The arc-shaped groove 118 is connected to the wear-resistant structure 130 by bolts or adhesive, and the connecting support 16 is connected to the corresponding wear-resistant structure 130 by bolts or adhesive; the wear-resistant structure 130 is a copper sheet or a ceramic sheet; the arc-shaped track 14 is provided with a limiting part 123 for preventing the roller 117 from disengaging from the top of the arc-shaped track 14, and the limiting part 123 is located on one side of the arc-shaped groove 118.

[0083] The lower part of the connecting support 16 is provided with an ear plate 119. At least two second shafts 120 are provided through the ear plate 119 at intervals along the length of the arc track 14. At least two rollers 117 are rotatably fitted on the second shafts 120 along their axial direction.

[0084] Specifically, the second shaft 120 is rotatably fitted with rollers 117 at both ends, and ear plates 119 are located between the rollers 117 at both ends. There are two ear plates 119, which are arranged laterally at intervals. The second shaft 120 passes through the two ear plates 119, and the transmission rope 18 is connected to the part of the second shaft 120 located between the two ear plates 119.

[0085] like Figure 10 As shown, a transition pulley 121 is rotatably fitted at the bottom of the arc-shaped track groove 19. The transition pulley 121 cooperates with the transmission rope 18. Since the arc-shaped track groove 19 has an arc-shaped structure, the hoisting mechanism 17 may have contact friction with the bottom of the arc-shaped track groove 19 when winding and unwinding the transmission rope 18, which seriously affects the service life of the arc-shaped track groove 19 and the transmission rope 18. In this case, the transition pulley 121 is set at or near the contact friction position between the transmission rope 18 and the arc-shaped track groove 19, changing the contact friction between the transmission rope 18 and the arc-shaped track groove 19 to the rolling cooperation between the transmission rope 18 and the transition pulley 121, thereby effectively increasing the service life of the arc-shaped track groove 19 and the transmission rope 18, and at the same time effectively reducing the friction force of the connecting support 16 moving relative to the arc-shaped track 14. A through groove 122 is provided at the bottom of the arc-shaped track groove 19, and the lower part of the transition pulley 121 is located in the through groove 122. In actual operation, in order to prevent the transition pulley 121 from interfering with the connecting support 16, the transition pulley 121 is lowered, and the lower part of the transition pulley 121 is located in the through groove 122, thereby avoiding the connecting support 16 in terms of height.

[0086] Method 2, such as Figures 14-16 As shown, the arc-shaped track 14 has arc-shaped grooves 19 on both sides and arc-shaped teeth 111 on the inner side of the arc-shaped track 14. The first telescopic device 15 is located on one side of the arc-shaped teeth 111. The connecting support 16 has rollers 110 rotatably engaged on both sides, and the rollers 110 roll with the corresponding arc-shaped grooves 19. The first driving mechanism includes a rotating gear 113 and a second driving mechanism 114. The second driving mechanism 114 is preferably a motor. The second driving mechanism 114 can drive the rotating gear 113 to rotate, and the rotating gear 113 meshes with the arc-shaped teeth 111.

[0087] The tunnel drilling device described in this application includes rollers 110 rotatably fitted on both sides of the connecting support 16. The rollers 110 roll into the corresponding arc-shaped track groove 19, allowing the connecting support 16 to move on the arc-shaped track 14 via the rollers 110. During operation, the second drive mechanism 114 drives the rotating gear 113 to rotate, causing the rotating gear 113 to mesh with the arc-shaped tooth 111. The rotating gear 113 moves relative to the arc-shaped tooth 111, thereby achieving the purpose of moving the connecting support 16 relative to the arc-shaped track 14.

[0088] Specifically, the second drive mechanism 114 is located on one side of the connecting support 16, and a counterweight 115 is provided on the other side of the connecting support 16.

[0089] The second drive mechanism 114 is located on one side of the connecting support 16 and applies an eccentric bending moment to the connecting support 16, causing the connecting support 16 to bear a large overturning moment, which is not conducive to the movement of the connecting support 16. In this case, by setting a counterweight 115 on the other side of the connecting support 16, the eccentric bending moment applied by the second drive mechanism 114 to the connecting support 16 is balanced, so that the large overturning moment borne by the connecting support 16 is greatly reduced, thereby optimizing the bearing moment of the connecting support 16 and making it more conducive to the movement of the connecting support 16.

[0090] Specifically, the connecting support 16 is rotatably engaged with the two ends of the arc-shaped track 14 along its length direction, and the limiting wheel 124 is able to slide with the side of the arc-shaped track 14.

[0091] Specifically, the connecting support 16 is provided with limiting wheels 124 on both sides, and there is a gap 125 between the limiting wheel 124 on at least one side and the arc-shaped track 14. The width of the gap 125 is L, 0.1mm≤L≤5mm.

[0092] Specifically, the top of the arc-shaped track 14 is provided with a first groove 126 along the length direction of the arc-shaped track 14, and the connecting support 16 is provided with a first protrusion 127 adapted to the first groove 126; the outer side of the arc-shaped track groove 19 has an arc-shaped slot 118, and the connecting support 16 is connected to the limiting wheel 124 through a first shaft 128, the first shaft 128 passing through the arc-shaped slot 118; the second roller 110 is a rubber wheel or a plastic wheel, the distance between the first groove 126 and the corresponding first protrusion 127 is H, the radial elastic deformation of the second roller 110 is T, T>H; the distance H between the first groove 126 and the corresponding first protrusion 127 is: 0.5mm≤H≤2mm.

[0093] During drilling operations, the connecting support 16 will bear a large reverse drilling force, which will be applied to the first shaft 128 and the second roller 110. To prevent the first shaft 128 from undergoing irreversible deformation due to bearing a large reverse drilling force for a long time, when the second roller 110 bears a large reverse drilling force, since the radial elastic deformation T of the second roller 110 is greater than the distance H between the first groove 126 and the corresponding first protrusion 127, the elastic deformation of the second roller 110 allows the reverse impact force to act directly on the arc-shaped track 14 through the first protrusion 127 when the connecting support 16 bears a large reverse impact force. This effectively controls the upper limit of the load that the first shaft 128 can bear, thereby effectively reducing the degree and probability of irreversible deformation of the first shaft 128.

[0094] Specifically, the second drive mechanism 114 is a motor with an output shaft 129. A rotating gear 113 is sleeved and fixed at the front end of the output shaft 129 and rotates together with the output shaft 129. A vertical plate 132 is provided on the side of the connecting support 16 near the second drive mechanism 114. A horizontal plate 131 is connected to the lower outer side of the vertical plate 132. The second drive mechanism 114 is disposed on the horizontal plate 131. The output shaft 129 passes through the vertical plate 132 and is connected to the rotating gear 113. The output shaft 129 and the vertical plate 132 are rotatably engaged by bearings.

[0095] Example 3

[0096] The tunnel drilling vehicle described in this embodiment includes a frame 3 and a support frame assembly capable of compensating for support as described in embodiment 1 or 2. The support frame 13 is disposed on the frame 3, and a drill gun 22 for drilling is connected to the connecting support 16.

[0097] There are generally three situations for mounting wheels on frame 3:

[0098] Scenario 1: The frame 3 is equipped with road wheels 33 for the frame 3 to travel on.

[0099] Scenario 2: The frame 3 is provided with rail-shaped wheels 34, which are used for the frame 3 to travel on the rails 36.

[0100] like Figures 18-19As shown in Case 3, the vehicle frame 3 is equipped with both road wheels 33 for the vehicle frame 3 to travel on and rail wheels 34 for the vehicle frame 3 to travel on the rails 36. In this case, the bottom of the rail wheels 34 is slightly higher than the bottom of the road wheels 33 to ensure that the bottom of the rail wheels 34 does not interfere with the ground when traveling on the road. When traveling on the rails 36, since the top of the rails 36 is higher than the ground, the bottom of the rail wheels 34 is slightly higher than the bottom of the road wheels 33 to ensure that the road wheels 33 do not interfere with the ground at the rails 36. Alternatively, the rail wheels 34 or road wheels 33 can be made to move vertically up and down to adjust their relative height in the vertical direction. By equipping the vehicle frame 3 with road wheels 33 and rail wheels 34, the tunnel drilling vehicle described in this application meets the requirement of dual-purpose use on a shared rail.

[0101] Based on the above, in a further preferred manner, the support frame 13 is movable relative to the vehicle frame 3 along the travel direction of the vehicle frame 3.

[0102] The beneficial effects of this embodiment: The tunnel drilling vehicle described in this embodiment includes a frame 3 and a support frame assembly capable of compensating for support as described in this application. The support frame 13 and the drill rig 22 are integrally connected to the arc-shaped track 14 via a first telescopic device 15. The first telescopic device 15 serves as a support for the arc-shaped track 14. During operation, as the integral formed by the support frame 13 and the drill rig 22 moves on the arc-shaped track 14, when the connecting support 16 moves to a position far from the first telescopic device 15, a large eccentric bending moment is generated on the first telescopic device 15. If multiple first telescopic devices 15 are provided... The system requires multiple first telescopic devices 15 to extend and retract synchronously, which results in high control costs. Therefore, a support telescopic device 217 is hinged to the support frame 13. When the first telescopic device 15 extends and retracts to its position and the connecting support 16 moves to the drilling position, the support telescopic device 217 can extend and retract to abut against the arc track 14 near the connecting support 16. This effectively reduces the eccentric bending moment borne by the first telescopic device 15 and greatly increases the stability of the arc track 14, thereby effectively reducing the number of first telescopic devices 15. This method can reduce the number of first telescopic devices 15 that need to extend and retract synchronously and effectively reduce their control costs.

[0103] Example 4

[0104] like Figures 20-22As shown, the tunnel drilling vehicle described in this embodiment differs from that in embodiment 3 in that it includes a front frame 1 and a rear frame 2 arranged at intervals. Both the front frame 1 and the rear frame 2 are equipped with a support frame assembly capable of compensating for support as described in embodiment 1 or 2. A metal detection device 11 and a marking device 12 are provided on the connecting support 16 of the front frame 1. The metal detection device 11 and the marking device 12 are fixedly arranged relative to each other. An identification device 21 and a drill rig 22 are provided on the connecting support 16 of the rear frame 2. The identification device 21 and the drill rig 22 are fixedly arranged relative to each other. The marking device 12 is used to mark the identification part 10, and the identification device 21 is used to identify the identification part 10.

[0105] The tunnel drilling equipment described in this application, in order to avoid damaging the reinforcing steel bars within 100mm of the tunnel inner wall during drilling, involves two steps during construction: detection marking and drilling identification.

[0106] Detection Marking: Move the front frame 1 and use the metal detection device 11 on the front frame 1 to perform detection operations to detect the metal inside the tunnel inner wall 100, and find the drilling location area F1 on the tunnel inner wall 100 based on the detected metal inside the tunnel inner wall 100. If the metal detection device 11 cannot detect the metal inside the tunnel inner wall 100 in a certain area, then that area is the drilling location area F1. The metal detection device 11 and the marking device 12 are relatively fixed, so the marking device 12 is used to mark the tunnel inner wall to form an identification part 10. The identification part 10 is used to characterize the drilling location area on the tunnel inner wall 100, for example, by spraying a pattern or pasting a pattern. Then the metal detection device 11, together with the marking device 12, finds and marks the next drilling location area.

[0107] Identification and drilling: Move the rear frame 2 and use the identification device 21 on the rear frame 2 to identify the marking part 10 on the inner wall of the tunnel. After the identification device 21 identifies the marking part 10, since the identification device 21 and the drill gun 22 are relatively fixed, the drill gun 22 performs drilling operation based on the position of the identification device 21, so that the hole drilled by the drill gun 22 is located in the drilling area.

[0108] The tunnel drilling equipment described in this application, through the marking device 12 and the identification device 21, separates the detection operation of the metal detector 11 from the drilling operation of the drill gun 22 while ensuring that the drilling operation is within the designated area. This effectively reduces the time spent by the operator in changing detectors and drilling operations, thereby greatly improving the detection efficiency of the metal detector 11. Furthermore, during the entire detection and drilling process, the operator only needs to control the actions of the metal detector 11, the marking device 12, the identification device 21, and the drill gun 22. The operator does not need to repeatedly lift the metal detector overhead for detection operations, nor does the operator need to be close to the drilling location. This effectively reduces the labor intensity of manual operations and the severity of the harsh working environment for the operator.

[0109] Taking the front frame 1 as an example: the front frame 1 includes a support frame 13, on which at least two arc-shaped tracks 14 are supported. Adjacent arc-shaped tracks 14 on the same support frame 13 are spaced apart. At least two arc-shaped tracks 14 are arranged circumferentially around the support frame 13. A connecting support 16 is slidably provided on the arc-shaped track 14. In the direction toward the outside of the support frame 13, the support frame 13 and the arc-shaped track 14 are telescopically connected by a first telescopic device 15. The metal detection device 11 and the marking device 12 are installed on the connecting support 16.

[0110] During construction: After the front frame 1 reaches a certain position, the metal detection device 11 and the marking device 12 can detect and mark along the circumference of the tunnel inner wall by the relative movement of the connecting support 16 and the arc-shaped track 14. In this process, at least two arc-shaped tracks 14 are set up, and each arc-shaped track 14 is equipped with a metal detection device 11 and a marking device 12. Adjacent arc-shaped tracks 14 are spaced apart and do not interfere with each other, so that at least two sets of metal detection devices 11 and marking devices 12 can work simultaneously to detect and mark different areas where holes can be drilled, thereby greatly increasing the construction efficiency of wall reinforcement detection and marking operations.

[0111] Meanwhile, based on the fact that the adjacent arc-shaped tracks 14 are spaced apart and do not interfere with each other, the first telescopic device 15 enables the arc-shaped tracks 14, the connecting support 16, the metal detection device 11 and the marking device 12 to move radially along the tunnel, thereby enabling the tunnel drilling equipment described in this application to meet the detection and marking operations of the steel bars 100 on the inner wall of the tunnel with different cross-sectional sizes or different cross-sectional shapes.

[0112] In the above scheme, the metal detection device 11 is preferably a rebar locator, a metal detector, or a rebar scanner. Taking a rebar scanner as an example: the rebar scanner can be the HC-GY71T integrated rebar scanner from Haichuang Gaoke Company. This rebar scanner is a portable intelligent non-destructive testing device used to detect the construction quality of reinforced concrete structures. It can detect the thickness of the rebar protective layer, the position, direction and distribution of the rebar, and can also detect magnetic and conductive materials in non-magnetic and non-conductive media.

[0113] The marking device 12 is preferably a marking gun, or, for example, a marking gun: the marking gun can be a WZ-MFS model linear spray gun or a WZ-MMFS model spray gun from the German brand Schutze, which can spray circular or fan-shaped marking parts 10, and the spraying medium can be paint or colorant.

[0114] The identification device 21 is preferably an identification camera or webcam, such as the Keyence CV-X series identification camera. A horn-shaped housing can be fitted around the front of the identification camera to help control the identification range of the camera.

[0115] Drilling equipment 22 preferably uses a drill gun.

[0116] like Figures 23-24 As shown, in a further preferred embodiment, the marking device 12 is located on the first side of the metal detection device 11, and the identification device 21 is also located on the first side of the drill rig 22. The distance between the marking device 12 and the metal detection device 11 is T1, and the distance between the identification device 21 and the drill rig 22 is T2, where T1 = T2.

[0117] Since the marking device 12, metal detector 11, identification device 21, and drill 22 themselves have width, if the marking device 12 is tilted relative to the metal detector 11 so that the marking part 10 is located in the drilling area F1, the identification device 21 and the drill 22 also need to be tilted. This makes adjustment and installation troublesome during construction. The tunnel drilling device described in this application, since the marking device 12 is located on the first side of the metal detector 11 and the identification device 21 is also located on the first side of the drill 22, makes the marking device 12 and the identification device 21 located on the same side. During construction, the distance T1 between the marking device 12 and the metal detector 11 is used to compensate for the distance T2 between the identification device 21 and the drill 22. This ensures that when the marking part 10 is within the identification range F2 of the identification device 21, the drill 22 can be aligned to the drilling area F1, thereby ensuring that the hole drilled by the drill 22 is located in the drilling area F1 on the inner wall 100 of the tunnel. No angle adjustment is required during construction, making construction convenient.

[0118] The tunnel drilling equipment described in this embodiment also includes a frame 3, and the assembly of the front frame 1 and the rear frame 2 with the frame 3 includes the following two schemes:

[0119] like Figure 20 As shown, firstly, the frame 3 is a single unit, and the front frame 1 and the rear frame 2 are both mounted on the frame 3.

[0120] Specifically, the frame 3 is provided with a track 31, and the front frame 1 and the rear frame 2 are both slidably engaged with the track 31.

[0121] The movement direction of the front frame 1 relative to the chassis 3 is parallel to the movement direction of the rear frame 2 relative to the chassis 3. During construction, after reaching a certain position in the tunnel, the chassis 3 is fixed, and the front frame 1 is moved on the chassis 3. The metal detection device 11 on the front frame 1 is used to detect and locate the drillable area F1 on the tunnel inner wall 100. Then, the marking device 12 is used to mark the tunnel inner wall, forming an identification part 10, which represents the drillable area F1 on the tunnel inner wall 100. After that, the front frame 1 is removed, and the drillable area F1 is detected. Then, the rear frame 2 is moved, and the identification device 21 on the rear frame 2 is used to identify the identification part 10 on the tunnel inner wall. After the identification device 21 identifies the identification part 10, the drill rig 22 performs drilling operations based on the position of the identification device 21.

[0122] like Figure 26 As shown, secondly, there are two frames 3, with the front frame 1 mounted on one of the frames 3 and the rear frame 2 mounted on the other frame 3.

[0123] Based on the above, in a further preferred embodiment, the frame 3 is provided with road wheels 33 for the frame 3 to travel on;

[0124] Based on the above, in a further preferred embodiment, the frame 3 is provided with rail-shaped wheels 34, which are used for the frame 3 to travel on the rails 36.

[0125] Example 5

[0126] The tunnel drilling construction method described in this embodiment is based on the tunnel drilling vehicle described in embodiments 3 and 4, such as... Figures 1-26 As shown, the construction method includes the following steps:

[0127] S1. Move the vehicle frame 3 to a predetermined position inside the tunnel;

[0128] S2. Use the first telescopic device 15 to extend the arc track 14 close to the inner wall of the tunnel until the drill gun 22 can drill into the inner wall of the tunnel and then stop the extension of the first telescopic device 15.

[0129] S3. Extend the support telescopic device 217 and make the support telescopic device 217 abut against the arc-shaped track 14;

[0130] S4. The connecting support 16 slides relative to the arc-shaped track 14, driving the drill gun 22 to the drilling position and to perform drilling operations.

[0131] The beneficial effects of this embodiment: In the tunnel drilling construction method described in this application, during operation, as the support frame 13 and the drill gun 22 move as a whole on the arc track 14, when the connecting support 16 moves to a position far from the first telescopic device 15, a large eccentric bending moment is generated on the first telescopic device 15. If multiple first telescopic devices 15 are set, they need to extend and retract synchronously, which results in high control costs. Therefore, a support telescopic device 217 is hinged on the support frame 13. When the first telescopic device 15 extends and retracts to its position, and the connecting support 16 moves to the drilling position, the support telescopic device 217 can extend and retract and abut against the arc track 14 at a position near the connecting support 16, thereby effectively reducing the eccentric bending moment borne by the first telescopic device 15 and greatly increasing the stability of the arc track 14. This effectively reduces the number of first telescopic devices 15, thereby reducing the number of first telescopic devices 15 that need to extend and retract synchronously and effectively reducing their control costs.

[0132] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A support frame assembly capable of compensating for support, characterized in that, Includes a support frame (13) and an arc-shaped track (14). The support frame (13) and the arc-shaped track (14) are telescopically connected via a first telescopic device (15) in a direction toward the outside of the support frame (13). A connecting support (16) is slidably disposed on the arc-shaped track (14). A support telescopic device (217) is hinged to the support frame (13) via a hinge shaft (219). The support telescopic device (217) has an idle state and an abutting state. When the support telescopic device (217) is in the abutting state, the support telescopic device (217) and the arc-shaped track (14) are in support abutting contact; When the support telescopic device (217) is in an idle state, there is a gap between the support telescopic device (217) and the arc-shaped track (14); The supporting telescopic device (217) includes an abutting telescopic device (218) and a second driving device (220). The abutting telescopic device (218) can support and abut against the arc-shaped track (14). The abutting telescopic device (218) is hinged to the support frame (13) through a hinge shaft (219). The hinge shaft (219) is fixed relative to the abutting telescopic device (218). A driven gear (224) is sleeved and connected on the hinge shaft (219), and a driving gear (223) is driven and connected on the second driving device (220). The driving gear (223) drives the driven gear (224) to rotate along the length direction of the arc-shaped track (14).

2. The support frame assembly capable of compensating for support according to claim 1, characterized in that, The front end of the abutting telescopic device (218) is rotatably fitted with an abutting wheel (225), and an abutting groove (226) is provided on the arc-shaped track (14), the abutting groove (226) abutting with the abutting wheel (225).

3. A support frame assembly capable of compensating for support according to claim 2, characterized in that, The abutment groove (226) on the arc track (14) is at least two, and at least two abutment grooves (226) are arranged on the inner side of the arc track (14) along the length direction of the arc track (14), and all abutment grooves (226) face the hinge shaft (219).

4. A support frame assembly capable of compensating for support according to any one of claims 1-3, characterized in that, At least two arc-shaped tracks (14) are supported on the support frame (13), and adjacent arc-shaped tracks (14) on the same support frame (13) are spaced apart, with at least two arc-shaped tracks (14) arranged circumferentially along the support frame (13).

5. A support frame assembly capable of compensating for support according to claim 4, characterized in that, The support telescopic device (217) is capable of supporting two adjacent arc-shaped tracks (14).

6. A tunnel drilling vehicle, characterized in that, Includes a frame (3) and a support frame assembly capable of compensating for support as described in any one of claims 1-5, wherein the support frame (13) is disposed on the frame (3) and a drill gun (22) for drilling is connected to the connecting support (16).

7. A tunnel drilling vehicle according to claim 6, characterized in that, The support frame (13) is movable relative to the frame (3) along the travel direction of the frame (3).

8. A tunnel drilling vehicle according to claim 6 or 7, characterized in that, The frame (3) is provided with road wheels (33) for the frame (3) to travel. And / or, The frame (3) is provided with rail-shaped wheels (34), which are used for the frame (3) to travel on the rails (36).

9. A method for tunnel drilling construction, characterized in that, Based on the tunnel drilling vehicle according to any one of claims 6-8, the construction method includes the following steps: S1. Move the vehicle frame (3) to a predetermined position inside the tunnel; S2. Use the first telescopic device (15) to extend the arc track (14) close to the inner wall of the tunnel until the drill gun (22) can drill into the inner wall of the tunnel and then stop the extension of the first telescopic device (15); S3. Extend the support telescopic device (217) and make the support telescopic device (217) abut against the arc-shaped track (14). S4. The connecting support (16) slides relative to the arc track (14), driving the drill gun (22) to the drilling position and to carry out drilling operations.

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