Tunnel drilling device

Abstract

The utility model discloses a tunnel drilling device which comprises a rack body and a plurality of drilling assemblies, the rack body is provided with a sliding rail part, the track of the sliding rail part is matched with the outline of a tunnel section, the plurality of drilling assemblies are distributed along the track of the sliding rail part at intervals, and the track of the sliding rail part is matched with the track of the tunnel section. The drilling assembly comprises a water mill drill and a mounting seat, the mounting seat is slidably matched on the sliding rail part, the water mill drill is movably arranged on the mounting seat in the excavation direction of the tunnel, and the height of the mounting seat is adjustable. Compared with a traditional mechanical excavation process and a drilling and blasting method excavation process, the tunnel drilling device has the advantages that disturbance to surrounding geology is greatly reduced, and the problems of over-excavation, under-excavation and unevenness of a tunnel excavation section are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to tunnel construction technical field especially relates to a tunnel drilling device. BACKGROUND

[0002] With the acceleration of urbanization process and the development of infrastructure construction, tunnel excavation engineering plays an increasingly important role in the utilization of underground space. The traditional tunnel excavation method mainly relies on explosive operation, but the explosive method has problems such as safety risk, great environmental impact and long construction period. Therefore, non-explosive excavation technology has gradually become a new trend of industry development.

[0003] The non-explosive excavation process in the related art mainly includes using a breaker hammer excavator to directly excavate the tunnel face. The breaker hammer excavator is a large mechanical equipment in which a bucket is replaced by a breaker hammer on the basis of a traditional heavy-duty excavator. Such equipment has been mature in the market and widely applied. For small tunnels, a single water drill is usually used for drilling the tunnel face, and then a hydraulic splitting machine is used to split the remaining tunnel face to achieve the purpose of slag removal.

[0004] However, the non-explosive excavation process in the related art has many technical problems. For example, the breaker hammer excavator produces a lot of noise and dust during construction, which seriously affects the surrounding environment and the health of construction personnel. In addition, due to the vibration of large mechanical equipment, the surrounding geological structure is disturbed, which may cause overbreak or underbreak of the tunnel excavation face, which not only affects the quality and safety of the project, but also increases the subsequent repair cost.

[0005] On the other hand, although the excavation method combining a single water drill with a hydraulic splitting machine reduces noise and dust to a certain extent, the labor intensity of workers is high and the construction efficiency is low due to the manual removal of rock mass, which is difficult to meet the high efficiency requirement of modernization. SUMMARY

[0006] The utility model aims at least to solve one of the technical problems in the related art to some extent.

[0007] Therefore, the embodiment of the utility model provides a tunnel drilling device, which solves the problems of overbreak, underbreak and uneven cross section of the tunnel excavation section.

[0008] The tunnel drilling device provided by the embodiment of the utility model comprises:

[0009] The gantry body has a slide rail part, and the track of the slide rail part matches the profile of the tunnel cross section;

[0010] The drilling assembly has a plurality of drilling assemblies, the plurality of drilling assemblies are distributed along the track of the slide rail part at intervals, the drilling assembly comprises a water drill and a mounting seat, the mounting seat is slidably matched on the slide rail part, the water drill is movably arranged on the mounting seat along the excavation direction of the tunnel, and the height of the mounting seat is adjustable.

[0011] The tunnel drilling device arranges the water drills on the gantry body in regions, the multiple water drills can work integrally or individually, and the tunnel face drilling efficiency is effectively improved; the free face is quickly drilled, the efficiency of splitting and excavation inside the tunnel face is improved, and the efficiency of the whole construction process is improved.

[0012] Furthermore, the multiple water drills are arranged along the excavation contour line at intervals, so that the continuous groove excavated will not have the problems of over-excavation, under-excavation and uneven excavation section; and the water drill has small disturbance to the surrounding geology in the construction process.

[0013] In some embodiments, the slide rail part comprises a track and a driving member, the track has two tracks distributed at intervals along the excavation direction of the tunnel, the mounting seat is provided with a pulley matched in the two tracks, and the driving member has a plurality of driving members corresponding to and connected with the plurality of mounting seats.

[0014] In some embodiments, the mounting seat has a transmission part, the transmission part comprises a reversible motor, a gear and a rack, the rack is arranged along the excavation direction of the tunnel, the gear is sleeved on the output shaft of the reversible motor, the gear is engaged with the rack, and the reversible motor is connected with the water drill.

[0015] In some embodiments, the mounting seat has a lifting part, the lifting part comprises a lead screw, a nut, a connecting rod and a support plate, the nut is sleeved on the lead screw, the nut and the connecting rod each have two, the two nuts and the two connecting rods correspond one by one, one end of the connecting rod is rotatably connected with the nut, the other end of the connecting rod is rotatably connected with the support plate, the two connecting rods are oppositely and obliquely arranged, and the transmission part is arranged on the support plate.

[0016] In some embodiments, the lifting part further comprises a buffer table, and the buffer table is located on the side of the support plate away from the transmission part.

[0017] In some embodiments, the mounting seat has an adjusting part, the adjusting part comprises a telescopic rod, one end of the rack is rotatably connected with the support plate, the other end of the rack is connected with the support plate through the telescopic rod, and the two ends of the telescopic rod are rotatably connected with the rack and the support plate respectively.

[0018] In some embodiments, the gantry body is in inverted U shape, and the gantry body is provided with an avoiding passage at the center, and the avoiding passage extends in the same direction as the tunnel excavation direction.

[0019] In some embodiments, the gantry body is provided with a plurality of walking parts, and the walking parts are oppositely distributed on both sides of the avoiding passage, and the walking part comprises a driving wheel, a driven wheel, a chain and a motor, the motor is connected with the driving wheel, and the driving wheel is connected with the driven wheel through the chain.

[0020] In some embodiments, the gantry body is provided with a plurality of supporting parts, and the supporting parts are oppositely distributed on both sides of the avoiding passage, and the supporting part comprises a telescopic oil cylinder arranged along the height direction of the tunnel and a transverse oil cylinder arranged along the width direction of the tunnel.

[0021] In some embodiments, the top of the gantry body is provided with an arch mounting area, and the arch mounting area is located on the side of the slide rail part away from the tunnel face. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is the first schematic view of the tunnel drilling device of the embodiment of the utility model.

[0023] Figure 2 is the second schematic view of the tunnel drilling device of the embodiment of the utility model.

[0024] Figure 3 is the schematic view of the drilling assembly of the embodiment of the utility model.

[0025] Figure 4 is the schematic view of the lifting of the drilling assembly of the embodiment of the utility model.

[0026] Figure 5 is the schematic view of the inclination angle adjustment of the drilling assembly of the embodiment of the utility model.

[0027] Figure 6 is the schematic view of the walking part of the gantry body of the embodiment of the utility model.

[0028] Figure 7 is the schematic view of the supporting part of the gantry body of the embodiment of the utility model.

[0029] REFERENCE SIGNS:

[0030] 1-gantry body, 11-slide rail part, 12-walking part, 13-supporting part, 14-arch mounting area,

[0031] 2-drilling assembly, 21-water drill, 22-mounting seat, 221-reversible motor, 222-rack, 223-screw, 224-nut, 225-connecting rod, 226-support plate, 227-buffer table, 228-telescopic rod. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0033] The tunnel boring device according to the embodiment of the present invention will be described below with reference to the accompanying drawings.

[0034] like Figures 1 to 5 As shown, the tunnel drilling device of the embodiment of the present utility model includes: a platform body 1 and a drilling assembly 2.

[0035] The gantry body 1 includes a slide rail 11 whose trajectory matches the profile of the tunnel cross-section. Multiple drilling assemblies 2 are spaced apart along the trajectory of the slide rail 11. The drilling assemblies 2 include a water-grinding drill 21 and a mounting base 22. The mounting base 22 slidably engages the slide rail 11 and is movably mounted on the mounting base 22 along the tunnel excavation direction. The height of the mounting base 22 is adjustable, thereby improving the drilling reliability of the water-grinding drill 21.

[0036] In the tunnel drilling device of the embodiment of the utility model, multiple water-grinding drills 21 are integrated on the platform body 1, which fit the tunnel section contour line, drill multiple holes simultaneously, and take cores at the same time, and construct multiple holes at one time, which greatly improves the drilling efficiency, quickly forms an air surface, and improves the working efficiency of subsequent breaker hammer excavators.

[0037] Furthermore, multiple water-grinding drills 21 are arranged in sequence along the excavation contour line, so that the excavated continuous channel will not have the problem of over-excavation or under-excavation, and the excavation section is flat, which is convenient for the installation of arch frames and meshes for tunnel support in the later stage.

[0038] In some embodiments, as Figure 1 As shown, the slide rail portion 11 includes two rails and a driving member (not shown). The two rails are spaced apart along the tunnel excavation direction. The mounting seat 22 is provided with pulleys that fit within the two rails. There are multiple driving members, and the multiple driving members correspond to and are connected to the multiple mounting seats 22 in a one-to-one manner.

[0039] Optionally, the driving member is an electric component such as a cylinder, an electric hoist, a telescopic motor, etc., which is used to drive the mounting seat 22 to slide on the track, thereby improving the degree of automation of the water drill 21 drilling along the excavation contour line.

[0040] In some embodiments, as shown in Figures 3 to 5 The mounting base 22 has a transmission part, which includes a reversible motor 221, a gear and a rack 222. The rack 222 is arranged along the direction of tunnel excavation, the gear is sleeved on the output shaft of the reversible motor 221, and the gear is engaged with the rack 222. The reversible motor 221 is connected with the water mill drill 21.

[0041] It can be understood that the reversible motor 221 drives the gear to move on the rack 222, so as to realize the movement of the water mill drill 21 along the direction of tunnel excavation. That is, the gantry body 1 does not need to move, and the water mill drill 21 moves relative to the gantry body 1 to achieve the purpose of drilling.

[0042] In some embodiments, as shown in Figure 3 and Figure 4 The mounting base 22 has a lifting part, which includes a lead screw 223, a nut 224, a connecting rod 225 and a support plate 226.

[0043] The nut 224 is sleeved on the lead screw 223, and the nut 224 and the connecting rod 225 each have two, the two nuts 224 and the two connecting rods 225 are one-to-one corresponding, one end of the connecting rod 225 is rotatably connected with the nut 224, the other end of the connecting rod 225 is rotatably connected with the support plate 226, the two connecting rods 225 are oppositely inclined, and the transmission part is arranged on the support plate 226.

[0044] It can be understood that the lead screw 223 is rotated to drive the nut 224 to move along the axial direction of the lead screw 223, and the support plate 226 is driven to rise and extend or to descend and recover through the articulated connecting rod 225, so as to ensure the accuracy of the drilling position.

[0045] Among them, the nut 224 is movable along the axial direction of the lead screw 223, which is based on the condition that the nut 224 does not rotate synchronously with the lead screw 223. For example, a limiting groove is arranged on the side of the lead screw 223, so that the nut 224 is slidably fitted in the limiting groove. Or, a limiting hole is formed on the nut 224, and a limiting rod is arranged in parallel with the lead screw 223 and penetrates the limiting hole.

[0046] Further, the lifting part further includes a buffer platform 227, which is located on the side of the support plate 226 away from the transmission part, so as to improve the stability of the descending and recovery of the water mill drill 21.

[0047] In some embodiments, as shown in Figure 3 and Figure 5As shown, the mounting seat 22 has an adjusting part, which comprises a telescopic rod 228, one end of the rack 222 is rotatably connected with a support plate 226, the other end of the rack 222 is connected with the support plate 226 through the telescopic rod 228, and the two ends of the telescopic rod 228 are rotatably connected with the rack 222 and the support plate 226 respectively.

[0048] It can be understood that by adjusting the length of the telescopic rod 228, the inclination angle of the water mill drill 21 is adjusted, and the flexibility of drilling is improved.

[0049] In some embodiments, as shown in Figure 2 As shown, the gantry body 1 is in an inverted U shape, and the gantry body 1 is provided with an avoiding passage at the center, and the extending direction of the avoiding passage is consistent with the excavation direction of the tunnel, so as to ensure that the gantry body 1 does not affect the passing of other vehicles (excavators, dump trucks, etc.) in the tunnel.

[0050] Optionally, as shown in Figure 1 and Figure 6 As shown, the gantry body 1 has a plurality of walking parts 12, and the plurality of walking parts 12 are relatively distributed on the two sides of the avoiding passage. The walking part 12 comprises a driving wheel, a driven wheel, a chain and a motor, the motor is connected with the driving wheel, and the driving wheel is connected with the driven wheel through the chain, so as to realize the self-walking function of the gantry body 1.

[0051] Optionally, as shown in Figure 1 and Figure 7 As shown, the gantry body 1 has a plurality of support parts 13, and the plurality of support parts 13 are relatively distributed on the two sides of the avoiding passage, and the support part 13 comprises a telescopic oil cylinder arranged along the height direction of the tunnel and a transverse oil cylinder arranged along the width direction of the tunnel. The telescopic oil cylinder and the transverse oil cylinder are used to realize the function of adjusting the posture of the gantry body 1, so as to ensure that the center of the gantry body 1 is consistent with the center of the tunnel.

[0052] In some embodiments, as shown in Figure 1 As shown, the top of the gantry body 1 is provided with an arch mounting area 14, and the arch mounting area 14 is located on the side of the slide rail part 11 away from the tunnel face. That is, the gantry body 1 provides an operation platform for tunnel arch installation, so as to improve the convenience of tunnel arch installation.

[0053] In summary, the operation process of the tunnel drilling device in the embodiment of the utility model is as follows:

[0054] First step: the movable gantry body 1 walks to the tunnel face, the posture of the gantry body 1 is adjusted by the up-down telescopic and left-right transverse movement of the support part 13, the center of the gantry body 1 is consistent with the center of the tunnel, and each support part 13 provides a support force.

[0055] Second step: multiple water mill drills 21 are positioned on the track (height, inclination angle, extension length) to drill the contour line of the tunnel to form the free surface of the tunnel periphery.

[0056] Third step: the height of the water mill drill 21 is lowered to ensure that the overall size of the device is lower than the size of the tunnel support, the gantry body 1 retreats, the drill reaches the excavation surface to crush, and the slag is discharged after excavation through the loader and the dump truck.

[0057] Fourth step: the drill retreats, the gantry body 1 advances, and the cycle is formed.

[0058] Therefore, the operation process of the tunnel drilling device is to increase a drilling and coring process on the basis of the direct excavation of the conventional breaking hammer excavator, to form a free surface on the working face through integrated gantry multiple water mill drills 21, to greatly improve the construction efficiency under the premise of forming the free surface, and to solve the over-excavation and under-excavation of the working face.

[0059] The device integrates multiple water mill drills 21 on the movable gantry body 1, has high automation, can independently advance, retreat and move left and right, can fit the cross section contour according to the cross section condition, can drill multiple holes at the same time, greatly improves the drilling efficiency, and reduces the labor intensity.

[0060] The water mill drill 21 has small noise and dust during operation, has small disturbance to the surrounding geology, is suitable for the excavation construction of small cross section tunnel engineering with short distance, hard rock stratum, densely populated urban areas, strict blasting vibration control, etc., does not produce toxic gas and other harmful waste, and obviously improves the operation environment.

[0061] In the description of the utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation of the utility model.

[0062] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and do not connote or imply any relative importance or any meaning pertaining to the quantity of the features being described. Thus, a feature defined with "first", "second", etc. can include at least one of the features, explicitly or implicitly. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless specifically defined otherwise.

[0063] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connection", "fixed", and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection or communication with each other; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless specifically defined otherwise. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0064] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0065] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the description, the illustrative representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or features of different embodiments or examples described in the specification without contradiction.

[0066] Although the above embodiments have been shown and described, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. Changes, modifications, replacements and variations of the above embodiments made by those skilled in the art are within the scope of the present application.

Claims

1. A tunnel drilling apparatus, characterized by, The utility model relates to a tunnel drilling device, including: A rack body has a slide rail part, and the track of the slide rail part matches the profile of a tunnel section; A plurality of drilling assemblies are distributed along the track of the slide rail part, and each drilling assembly comprises a water drill and a mounting seat, the mounting seat is slidably fitted on the slide rail part, the water drill is movably arranged on the mounting seat in the direction of tunnel excavation, and the height of the mounting seat is adjustable.

2. The tunneling device of claim 1, wherein, The slide rail part comprises a track and a driving member, the track has two tracks distributed along the direction of tunnel excavation, the mounting seat is provided with a pulley fitted in the two tracks, and the driving member has a plurality of driving members corresponding to and connected with the plurality of mounting seats.

3. The tunneling device of claim 1, wherein, The mounting seat has a transmission part comprising a reversible motor, a gear and a rack, the rack is arranged along the direction of tunnel excavation, the gear is sleeved on the output shaft of the reversible motor, the gear is engaged with the rack, and the reversible motor is connected with the water drill.

4. The tunneling device of claim 3, wherein, The mounting seat has a lifting part comprising a lead screw, a nut, a connecting rod and a support plate, the nut is sleeved on the lead screw, the nut and the connecting rod each have two nuts and two connecting rods corresponding to each other, one end of the connecting rod is rotatably connected with the nut, the other end of the connecting rod is rotatably connected with the support plate, the two connecting rods are oppositely arranged, and the transmission part is arranged on the support plate.

5. A tunnel boring apparatus according to claim 4, wherein, The lifting part further comprises a buffer platform located on the side of the support plate away from the transmission part.

6. The tunneling device of claim 4, wherein, The mounting seat has an adjusting part comprising a telescopic rod, one end of the rack is rotatably connected with the support plate, the other end of the rack is connected with the support plate through the telescopic rod, and the two ends of the telescopic rod are rotatably connected with the rack and the support plate respectively.

7. The tunneling device of claim 1, wherein, The rack body is inverted U-shaped, the rack body is provided with an avoiding channel at the center, and the extension direction of the avoiding channel is consistent with the direction of tunnel excavation.

8. The tunneling device of claim 7, wherein, The rack body has a plurality of walking parts oppositely arranged on both sides of the avoiding channel, and each walking part comprises a driving wheel, a driven wheel, a chain and a motor, the motor is connected with the driving wheel, and the driving wheel is connected with the driven wheel through the chain.

9. The tunneling device of claim 7, wherein, The rack body has a plurality of supporting parts oppositely arranged on both sides of the avoiding channel, and each supporting part comprises a telescopic oil cylinder arranged along the height direction of the tunnel and a transverse oil cylinder arranged along the width direction of the tunnel.

10. The tunneling device of claim 1, wherein, The top of the rack body is provided with an arch mounting area located on the side of the slide rail part away from the tunnel face.

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