Tunnel and mine multi-degree-of-freedom lining plate chuck device

Abstract

The utility model relates to tunnel lining construction technical field, concretely relates to a kind of tunnel and cave multiple degree of freedom lining plate sucking disc device, including annular guide rail support, travelling device, power device and sucking disc device;The sucking disc device includes sucking disc surface, first sucking disc adjusting oil cylinder, second sucking disc adjusting oil cylinder, third sucking disc adjusting oil cylinder, multiple sucking disc support wheel, two front and rear moving tracks, front and rear moving oil cylinder, first support base and sucking disc mounting seat;Different from traditional cast-in-place concrete lining, its technical essence is to realize the efficient construction of tunnel structure by "standardized production + mechanized installation";Fabricated lining mode has great advantages in improving the quality of internal structure of shield tunnel, construction efficiency, improving the working environment in hole, saving material cost and the like, realizes mechanization, intelligent assembly, and the construction efficiency is higher, simultaneously solves the installation problem of contact network channel, improves construction technology, realizes green construction.

Description

Technical Field

[0001] This utility model relates to the field of tunnel lining construction technology, and in particular to a multi-degree-of-freedom lining suction cup device for tunnels and mines. Background Technology

[0002] In tunnel engineering, the inner lining structure is a core component ensuring the long-term stability of the tunnel, and its construction quality directly affects the tunnel's service life and operational safety. Traditional inner lining construction mainly adopts the in-situ casting process, which involves constructing a concrete inner lining on the inner arc surface of the tunnel segments through steps such as formwork erection, concrete pouring, and curing. However, as tunnel engineering develops towards larger diameters (e.g., ≥10m), longer distances (e.g., ≥10km), and more complex geological conditions (e.g., soft soil, karst), the limitations of the traditional in-situ casting process are becoming increasingly apparent. Construction efficiency is low, severely interfering with the continuity of shield tunneling. In-situ casting of the inner lining requires multiple steps, including formwork installation (4-6 hours), concrete transportation (relying on pump trucks or manual transport), layered pouring (each layer ≤300mm thick, compaction time 2-3 hours), and curing (natural curing 7-14 days or steam curing 12-24 hours), with a single-ring inner lining construction cycle as long as 12-24 hours. During this period, the tunnel boring machine (TBM) needs to suspend tunneling while waiting for the lining construction to be completed, resulting in idle TBM equipment and idle personnel. The average daily advance distance of the TBM is reduced by 30%-50% compared with prefabricated construction, which seriously restricts the overall construction efficiency of the tunnel.

[0003] The large amount of rebar installation compromises the structural integrity of the tunnel segments. To ensure the reliable connection between the cast-in-place lining and the tunnel segments, it is necessary to drill holes and insert a large number of rebars into the inner arc surface of the segments (120-200 rebars per ring, 12-20mm in diameter, with a drilling depth of 150-200mm). The rebar installation process leads to localized weakening of the segment concrete (weakening area accounts for 5%-8%), and it is necessary to cut and remove excess concrete (0.5-1m³ removed per ring), further aggravating structural damage. In long-term operation, the concrete around the rebars is prone to micro-cracks due to stress concentration (crack incidence rate ≥30% after 5 years of service), threatening the structural safety of the tunnel segments.

[0004] Traditional cast-in-place construction methods suffer from low construction efficiency, damage to tunnel segments, high costs, and a poor environment, making it difficult to meet the demands of modern tunnel engineering for "high efficiency, economy, durability, and safety." There is an urgent need to develop a new type of lining construction device to achieve rapid, low-interference, and high-precision assembly of the lining, thereby solving the aforementioned technical bottlenecks. Utility Model Content

[0005] The purpose of this utility model is to provide a multi-degree-of-freedom lining suction cup device for tunnels and mines, which solves the problems of low construction efficiency, damage to tunnel segments, high cost and environmental pollution caused by traditional cast-in-place processes in the prior art.

[0006] To achieve the above objectives, this utility model provides a multi-degree-of-freedom lining suction cup device for tunnels and mines, including an annular guide rail support, a walking device, a power device, and a suction cup device.

[0007] The suction cup device includes a suction cup surface, a first suction cup adjusting cylinder, a second suction cup adjusting cylinder, a third suction cup adjusting cylinder, multiple suction cup support wheels, two front-to-back moving tracks, a front-to-back moving cylinder, a first support base, and a suction cup mounting base. The first support base is a steel frame structure, with a power device connected to each of the four bottom corners of the first support base. The two front-to-back moving tracks are mounted on the first support base and horizontally fixed along its length. The multiple suction cup support wheels are symmetrically mounted on the upper part of the first support base and are adapted to the corresponding front-to-back moving tracks. The multiple suction cup support wheels and the suction cup... The mounting base is welded and fixed. The bottoms of the first suction cup adjusting cylinder, the second suction cup adjusting cylinder, and the third suction cup adjusting cylinder are fixedly connected to the suction cup mounting base via trunnions. The first suction cup adjusting cylinder is arranged laterally along the two front-to-back moving tracks, the second suction cup adjusting cylinder is arranged longitudinally along the two front-to-back moving tracks, and the third suction cup adjusting cylinder is arranged vertically along the two front-to-back moving tracks. The front-to-back moving cylinders are arranged along the two front-to-back moving tracks. The suction cup surface is a rectangular plate structure. A joint ball bearing is provided between the suction cup mounting base and the suction cup surface. The annular guide rail support is a closed annular structure.

[0008] The annular guide rail support includes two annular tracks, multiple reinforcing beam structures, and annular racks. The two annular tracks are arranged in parallel and opposite directions. The multiple reinforcing beam structures are fixedly connected to the two annular tracks respectively. The cross-section of the annular track is concave. The annular racks are fixedly arranged circumferentially on the concave inner bottom surface of both annular tracks.

[0009] The two ends of the plurality of reinforcing beam structures are respectively welded to the inner walls of the two annular tracks, and the extension direction of the plurality of reinforcing beam structures is perpendicular to the plane of the two annular tracks.

[0010] The walking device includes multiple drive wheel sets, multiple driven wheel sets, and multiple walking drive mechanisms. The multiple drive wheel sets and the corresponding driven wheel sets are respectively installed on both sides of the bottom of the annular guide rail support, and the multiple walking drive mechanisms are respectively disposed on both sides of the bottom of the annular guide rail support.

[0011] The power unit includes a second support base, a drive motor, a gearbox, a gear shaft, a telescopic cylinder, two guide rollers, and a gear. The second support base connects to two annular tracks, and two guide rollers are respectively disposed inside the second support base. The drive motor is connected to the gear shaft through the gearbox. The gear is fixedly disposed on the outer wall of the gear shaft and meshes with the annular rack. The telescopic cylinder is disposed on the power unit and includes a cylinder body and a piston rod. The cylinder body is fixedly connected to the outer wall of the gear shaft through a flange, and the end of the piston rod is connected to the second support base.

[0012] This utility model discloses a multi-degree-of-freedom suction cup device for tunnel and mine lining plates. The suction cup support wheel is connected to the axle via a deep groove ball bearing. The first, second, and third suction cup adjusting cylinders are all double-acting servo hydraulic cylinders (cylinder diameter 63-125mm, rod diameter 40-80mm, stroke 200-500mm). The bottom of their cylinder bodies is fixedly connected to the suction cup mounting base via trunnions, and the top of their piston rods is hinged to the edge support steel plate of the suction cup surface via ball joints. The first suction cup adjusting cylinder is arranged in the vertical direction (lateral direction) of the front and rear moving track and is used to adjust the left and right tilt of the suction cup surface. The first suction cup has an angle adjustment range of ±15°. The second suction cup adjustment cylinder is arranged along the axial (longitudinal) direction of the front-to-back moving track and is used to adjust the front-to-back pitch angle of the suction cup surface (adjustment range ±10°). The third suction cup adjustment cylinder is arranged vertically along the front-to-back moving track and is used to adjust the up-and-down movement of the suction cup device. The front-to-back moving cylinder is arranged along the front-to-back moving track and is used to adjust the front-to-back movement of the suction cup device. The suction cup surface is a rectangular plate structure used to pick up the inner lining segments. Thus, this device has significant advantages in terms of improving construction efficiency, improving the working environment inside the tunnel, and saving labor and material costs through angle adjustment in multiple directions. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a cross-sectional view of the annular guide rail support and walking device of this utility model.

[0016] Figure 3 This is a schematic diagram of the walking device of this utility model.

[0017] Figure 4 This is a schematic diagram of the suction cup device of this utility model.

[0018] 101-Annular guide rail support, 102-Annular track, 103-Reinforced crossbeam structure, 104-Annular rack, 201-Walking device, 202-Drive wheel set, 203-Driven wheel set, 204-Walking drive mechanism, 301-Power unit, 302-First support base, 303-Drive motor, 304-Gearbox, 305-Gear shaft, 306-Telescopic cylinder, 307-Gear, 401-Suction cup device, 402-Suction cup surface, 403-First suction cup adjusting cylinder, 404-Second suction cup adjusting cylinder, 405-Third suction cup adjusting cylinder, 406-Suction cup support wheel, 407-Front and rear moving track, 408-Front and rear moving cylinder, 409-Second support base, 411-Spherical ball bearing, 3021-Guide roller, 3061-Cylinder body, 3062-Piston rod. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below. 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 explain the present invention, but should not be construed as limiting the present invention.

[0020] Please see Figures 1 to 4 ,in, Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 2 This is a cross-sectional view of the annular guide rail support and traveling device of this utility model. Figure 3 This is a structural schematic diagram of the walking device of this utility model. Figure 4 This is a schematic diagram of the suction cup device of this utility model.

[0021] This utility model provides a multi-degree-of-freedom lining suction cup device 401 for tunnels and mines, including an annular guide rail support 101, a walking device 201, a power device 301, and a suction cup device 401.

[0022] The suction cup device 401 includes a suction cup surface 402, a first suction cup adjusting cylinder 403, a second suction cup adjusting cylinder 404, a third suction cup adjusting cylinder 405, multiple suction cup support wheels 406, two front-to-back moving tracks 407, a front-to-back moving cylinder 408, a first support base 302, and a suction cup mounting base. The first support base 302 is a steel frame structure, and the four bottom corners of the first support base 302 are connected to the power device 301. The two front-to-back moving tracks 407 are installed on the first support base 302 and are horizontally fixed along the length of the first support base 302. The multiple suction cup support wheels 406 are symmetrically installed on the upper part of the first support base 302 and are adapted to the corresponding front-to-back moving tracks 407. 6. The suction cup is welded and fixed to the suction cup mounting base. The bottoms of the first suction cup adjusting cylinder 403, the second suction cup adjusting cylinder 404, and the third suction cup adjusting cylinder 405 are fixedly connected to the suction cup mounting base via trunnions. The first suction cup adjusting cylinder 403 is arranged laterally along the two front-to-back moving tracks 407, the second suction cup adjusting cylinder 404 is arranged longitudinally along the two front-to-back moving tracks 407, the third suction cup adjusting cylinder 405 is arranged vertically along the two front-to-back moving tracks 407, and the front-to-back moving cylinder 408 is arranged along the two front-to-back moving tracks 407. The suction cup surface 402 is a rectangular plate structure. A joint ball bearing 411 is provided between the suction cup mounting base and the suction cup surface 402. The annular guide rail support 101 is a closed annular structure.

[0023] In this embodiment, the wheel body of the suction cup support wheel 406 is connected to the axle via a deep groove ball bearing; the first suction cup adjusting cylinder 403, the second suction cup adjusting cylinder 404, and the third suction cup adjusting cylinder 405 are all double-acting servo hydraulic cylinders (cylinder diameter 63-125mm, rod diameter 40-80mm, stroke 200-500mm), the bottom of their cylinder bodies are fixedly connected to the suction cup mounting seat via trunnions, and the top of their piston rod 3062 is hinged to the edge support steel plate of the suction cup surface 402 via a ball joint; the first suction cup adjusting cylinder 403 is arranged along the vertical direction (lateral direction) of the front and rear moving track 407, and is used to adjust the left and right tilt angle of the suction cup surface 402 (adjustment range ± The second suction cup adjusting cylinder 404 is arranged along the axial (longitudinal) direction of the front and rear moving track 407 and is used to adjust the front and rear pitch angle of the suction cup surface 402 (adjustment range ±10°); the third suction cup adjusting cylinder 405 is arranged along the vertical direction of the front and rear moving track 407 and is used to adjust the up and down movement of the suction cup device 401; the front and rear moving cylinder 408 is arranged along the front and rear moving track 407 and is used to adjust the front and rear movement of the suction cup device 401; the suction cup surface 402 is a rectangular plate structure used to pick up the inner lining segments. Thus, this device has significant advantages in terms of improving construction efficiency, improving the working environment inside the tunnel, and saving labor and material costs through angle adjustment in multiple directions.

[0024] Furthermore, the annular guide rail support 101 includes two annular tracks 102, multiple reinforcing beam structures 103, and annular racks 104. The two annular tracks 102 are arranged parallel and opposite to each other. The multiple reinforcing beam structures 103 are fixedly connected to the two annular tracks 102 respectively. The cross-section of the annular track 102 is concave, and the annular racks 104 are fixedly arranged circumferentially on the concave inner bottom surface of each of the two annular tracks 102. The two ends of the multiple reinforcing beam structures 103 are welded to the inner walls of the two annular tracks 102 respectively, and the extension directions of the multiple reinforcing beam structures 103 are perpendicular to the plane of the two annular tracks 102 respectively.

[0025] In this embodiment, the reinforcing beam structure 103 of the annular track 102 is a number of metal profiles (such as H-beams or square steel tubes). The cross-sectional dimensions of the reinforcing beam structure 103 are designed according to the load of the annular track 102 to improve the overall bending stiffness of the annular track 102.

[0026] Furthermore, the walking device 201 includes multiple drive wheel sets 202, multiple driven wheel sets 203, and multiple walking drive mechanisms 204. The multiple drive wheel sets 202 and the corresponding driven wheel sets 203 are respectively installed on both sides of the bottom of the annular guide rail support 101, and the multiple walking drive mechanisms 204 are respectively disposed on both sides of the bottom of the annular guide rail support 101.

[0027] In this embodiment, the walking drive mechanism 204 includes a walking motor and a reducer, the output end of which is connected to the axle of the drive wheel set 202, for driving the annular guide rail support 101 to move along the tunneling direction. The outer wall of the wheel of the drive wheel set 202 makes rolling contact with the track beam on the tunnel / mine floor, thereby driving the entire device to move.

[0028] Further, the power unit 301 includes a second support base 409, a drive motor 303, a gearbox 304, a gear shaft 305, a telescopic cylinder 306, two guide rollers 3021, and a gear 307. The second support base 409 connects to two annular tracks 102. Two guide rollers 3021 are disposed inside the second support base 409. The two guide rollers 3021 are respectively disposed inside the second support base 409. The drive motor 303... The gear 307 is connected to the gear 307 shaft 305 via the gear box 304. The gear 307 is fixedly mounted on the outer wall of the gear 307 shaft 305. The gear 307 meshes with the annular rack 104. The telescopic cylinder 306 is mounted on the power unit 301. The telescopic cylinder 306 includes a cylinder body and a piston rod 3062. The cylinder body is fixedly connected to the outer wall of the gear 307 shaft 305 via a flange. The end of the piston rod 3062 is connected to the second support base 409.

[0029] In this embodiment, the concave upper side of the supporting annular track 102 plays a balancing support role during the movement of the suction cup device 401, and allows the suction cup device 401 to adaptively adjust its angle during the extension and retraction process (compensating for the radial deviation of the annular guide rail). The drive motor 303 drives the gear 307 shaft 305 and gear 307 to rotate, so that gear 307 engages with the annular rack 104, thereby driving the second support base 409 to move on the two annular tracks 102. Through the cooperation of the cylinder and the piston rod 3062, the second support base 409 is pushed to move.

[0030] When using the multi-degree-of-freedom lining suction cup device for tunnels and mines of this utility model, the core technologies such as the annular guide rail support 101, multi-degree-of-freedom suction cup adjustment, and gear 307 rack drive enable rapid positioning and precise assembly of the inner lining plate. The annular guide rail support 101 is installed on the walking device 201. The annular guide rail support 101 is a closed annular structure. When the target lining plate is transported to the designated position, the drive motor 303 rotates in the forward direction, driving the power device 301 and the suction cup device 401 to move towards the target work position. After reaching the target work position, the drive motor 303 locks, the telescopic cylinder 306 operates, and the suction cup device 401 moves to the designed position of the lining plate. The suction cup surface 402 is aligned with the center of the lining plate, the vacuum generator is started, and the vacuum suction cup adsorbs the lining plate. After confirming that the adsorption force is stable, the walking device 201 starts and moves along the annular guide rail. When the walking device 201 moves to the work position, the drive wheel set 202 locks, and the assembly of the lining plate begins (the entire device does not move during the assembly of the lining plate). When the forward and backward moving cylinder 408 extends, it drives the suction cup mounting base to slide along the forward and backward moving track 407. When the suction cup adjusting cylinder retracts, it adjusts the left side of the suction cup surface 402 to tilt upward. When the suction cup adjusting cylinder extends, it adjusts the rear end of the suction cup surface 402 to tilt downward. When the suction cup adjusting cylinder extends, it makes the liner plate fit tightly with the assembled liner plate. When the vacuum generator stops, compressed air is introduced, and the suction cup separates from the liner plate.

[0031] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A multi-degree-of-freedom lining suction cup device for tunnels and mines, characterized in that, It includes a ring-shaped guide rail support, a walking device, a power unit, and a suction cup device; The suction cup device includes a suction cup surface, a first suction cup adjusting cylinder, a second suction cup adjusting cylinder, a third suction cup adjusting cylinder, multiple suction cup support wheels, two front-to-back moving tracks, a front-to-back moving cylinder, a first support base, and a suction cup mounting base. The first support base is a steel frame structure, with a power device connected to each of the four bottom corners of the first support base. The two front-to-back moving tracks are mounted on the first support base and horizontally fixed along its length. The multiple suction cup support wheels are symmetrically mounted on the upper part of the first support base and are adapted to the corresponding front-to-back moving tracks. The multiple suction cup support wheels and the suction cup... The mounting base is welded and fixed. The bottoms of the first suction cup adjusting cylinder, the second suction cup adjusting cylinder, and the third suction cup adjusting cylinder are fixedly connected to the suction cup mounting base via trunnions. The first suction cup adjusting cylinder is arranged laterally along the two front-to-back moving tracks, the second suction cup adjusting cylinder is arranged longitudinally along the two front-to-back moving tracks, and the third suction cup adjusting cylinder is arranged vertically along the two front-to-back moving tracks. The front-to-back moving cylinders are arranged along the two front-to-back moving tracks. The suction cup surface is a rectangular plate structure. A joint ball bearing is provided between the suction cup mounting base and the suction cup surface. The annular guide rail support is a closed annular structure.

2. The multi-degree-of-freedom lining suction cup device for tunnels and mines as described in claim 1, characterized in that, The annular guide rail support includes two annular tracks, multiple reinforcing beam structures, and annular racks. The two annular tracks are arranged in parallel and opposite directions. The multiple reinforcing beam structures are fixedly connected to the two annular tracks respectively. The cross-section of the annular track is concave. The annular racks are fixedly arranged circumferentially on the concave inner bottom surface of both annular tracks.

3. The multi-degree-of-freedom lining suction cup device for tunnels and mines as described in claim 2, characterized in that, Both ends of the plurality of reinforcing beam structures are respectively welded to the inner vertical walls of the two annular tracks, and the extension direction of the plurality of reinforcing beam structures is perpendicular to the plane of the two annular tracks.

4. The multi-degree-of-freedom lining suction cup device for tunnels and mines as described in claim 3, characterized in that, The walking device includes multiple drive wheel sets, multiple driven wheel sets, and multiple walking drive mechanisms. The multiple drive wheel sets and their corresponding driven wheel sets are respectively installed on both sides of the bottom of the annular guide rail support, and the multiple walking drive mechanisms are respectively disposed on both sides of the bottom of the annular guide rail support.

5. The multi-degree-of-freedom lining suction cup device for tunnels and mines as described in claim 4, characterized in that, The power unit includes a second support base, a drive motor, a gearbox, a gear shaft, a telescopic cylinder, two guide rollers, and a gear. The second support base connects to two annular tracks, and two guide rollers are respectively disposed inside the second support base. The drive motor is connected to the gear shaft through the gearbox. The gear is fixedly disposed on the outer wall of the gear shaft and meshes with the annular rack. The telescopic cylinder is disposed on the power unit and includes a cylinder body and a piston rod. The cylinder body is fixedly connected to the outer wall of the gear shaft through a flange, and the end of the piston rod is connected to the second support base.

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