Track type lifting installation arch frame multifunctional excavation rack for tunnel construction

Abstract

A track type lifting installation arch multifunctional excavation rack for tunnel construction relates to the technical field of tunnel construction, comprising a main frame, a crawler walking mechanism, an arch lifting mechanism, an upper sliding platform, an arch hydraulic lifting support and a sliding trolley. The upper sliding platform and the arch hydraulic lifting support work cooperatively, and the arch is accurately transferred and positioned through the sliding trolley. The stability of the arch during lifting is ensured by the design of the lifting sliding frame and the reverse buckle part, and the rigidity and load capacity of the upper sliding platform are enhanced by the multi-stage longitudinal beam combination. The compatibility of different specifications of arches is improved, and the risk of arch sliding or deviation is reduced by the design of multiple bearing rollers and adjusting bolts at the bottom of the sliding trolley. The hydraulic translation mechanism installed at the bottom of the main frame realizes accurate positioning of the rack, greatly enhances the flexibility and application range of the equipment. The utility model significantly improves the construction efficiency, reduces the labor intensity and guarantees the construction safety.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, and in particular to a multi-functional excavation platform for track-mounted lifting and installation of arch frames for tunnel construction. Background Technology

[0002] During tunnel construction, the installation of arch frames is a crucial step in ensuring the stability and safety of the tunnel structure. Traditional arch frame installation methods mainly rely on manual handling and simple mechanical assistance. This approach is not only labor-intensive and inefficient, but also poses significant safety hazards. The limitations of traditional methods are particularly evident when constructing tunnels over long distances or in complex geological conditions. For example, wheeled transport equipment struggles to operate effectively on slippery, soft, or uneven tunnel floors, easily slipping or sinking into the ground. This not only affects construction progress but can also threaten the lives of construction workers.

[0003] To address these issues, various mechanical devices for arch frame installation have emerged on the market. However, these existing devices still have several shortcomings. While some devices employ tracked walking mechanisms to enhance adaptability to complex terrain, they lack flexibility and precision in lifting and transporting the arch frames, leading to difficulties in arch frame positioning and increasing the risk of installation errors. Furthermore, the design of some devices fails to adequately consider the space constraints and ease of operation at the construction site, resulting in bulky and complex units that hinder rapid deployment and efficient operation. Simultaneously, the sliding platforms in existing technologies often lack effective drive mechanisms, causing instability during movement and affecting the accurate placement of the arch frames.

[0004] Therefore, how to design a multifunctional excavation platform that can adapt to complex tunnel environments and achieve efficient and precise installation of arch frames has become an urgent problem to be solved in the industry. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model discloses a multi-functional excavation platform for track-type lifting and mounting arch frames used in tunnel construction.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0007] A multi-functional excavation platform for track-mounted lifting and mounting arch frames used in tunnel construction includes:

[0008] Main framework;

[0009] The tracked walking mechanism is installed at the bottom of the main frame and is used to drive the main frame to move longitudinally along the tunnel.

[0010] The arch frame lifting mechanism is installed at the rear end of the main frame in the direction of travel.

[0011] The upper sliding platform is installed on the main frame and can move back and forth along the main frame;

[0012] The arch frame hydraulic lifting support is installed on the sliding platform;

[0013] There are four sliding trolleys; two of them are installed on the upper sliding platform to transfer the arch frame on the arch frame lifting mechanism to the arch frame hydraulic lifting support; the other two are installed on the arch frame hydraulic lifting support to transfer the arch frame on the arch frame hydraulic lifting support to the predetermined installation position.

[0014] Preferably, the arch frame lifting mechanism includes:

[0015] The lifting slide rail is vertically and securely connected to the main frame, and has sliding grooves on both sides.

[0016] The lifting sliding frame slides in conjunction with the lifting slide rail frame; used for lifting arch frames.

[0017] The sliding reverse fastening component slides and engages with the slide groove of the lifting slide rail frame, and is securely connected to the lifting slide frame;

[0018] The drive unit, installed on the lifting slide rail, is used to drive the lifting slide frame and the sliding counter-clamping component to slide vertically up and down along the lifting slide rail.

[0019] Preferably, the lifting sliding frame is equipped with an outer slider that slides in cooperation with the lifting slide rail frame; the sliding reverse fastening component includes:

[0020] The inverted bracket is securely connected to the lifting sliding frame;

[0021] The bearing wheel is mounted on the reverse bracket and rolls in cooperation with the groove of the lifting slide rail frame;

[0022] The inner slider is installed on the reverse bracket and slides in cooperation with the groove of the lifting slide rail;

[0023] The inner and outer sliders work together to clamp the groove wall of the lifting slide rail frame.

[0024] Preferably, the driving device is a telescopic rod; or the driving device is a chain drive mechanism, the chain drive mechanism comprising:

[0025] The motor is installed at the bottom of the lifting slide rail frame;

[0026] Two sprockets, one mounted on the output end of the motor and the other mounted on the top of the lifting slide rail;

[0027] The chain, in conjunction with two sprockets, has one section securely connected to the lifting slide frame; the chain is driven by a motor, which in turn causes the lifting slide frame to move up and down.

[0028] Preferably, the upper sliding platform includes:

[0029] The upper longitudinal transfer wheel frame is securely connected to the upper crossbeam of the main frame;

[0030] The lower longitudinal transfer wheel frame is securely connected to the lower crossbeam of the main frame;

[0031] The upper longitudinal beam slides in conjunction with the upper longitudinal wheel frame.

[0032] The longitudinal beam of the arch frame transfer track trolley is fastened to the longitudinal beam of the longitudinal movement; a sliding trolley is installed on the longitudinal beam of the arch frame transfer track trolley.

[0033] The lower longitudinal beam slides in conjunction with the lower longitudinal wheel frame; the lower longitudinal beam is fastened to the upper longitudinal beam via a bracket.

[0034] The second telescopic cylinder is installed at the bottom of the longitudinal beam.

[0035] Preferably, the arch hydraulic lifting support includes:

[0036] The first telescopic cylinder is vertically mounted on the longitudinal beam of the longitudinal movement;

[0037] The arch frame lifting frame track beam is installed on the first telescopic cylinder; a sliding trolley is installed on the arch frame lifting frame track beam.

[0038] Preferably, the sliding trolley includes:

[0039] The trolley frame has a support at the top and a trough-shaped structure at the bottom.

[0040] There are multiple bearing rollers, which are respectively installed on the bottom of the slot and the two slot walls of the trolley frame;

[0041] The support bracket is securely connected to one side of the trolley frame.

[0042] Adjusting bolts are inserted through the support bracket and threadedly connected to it. The arch frame is supported by the adjusting bolts and the support at the top of the trolley frame.

[0043] Preferably, the main frame is equipped with an upper platform longitudinal traction mechanism for driving the upper sliding platform; the upper platform longitudinal traction mechanism is a telescopic rod or a chain drive mechanism.

[0044] Preferably, a hydraulic translation mechanism is installed at each of the four corners of the bottom of the main frame; the hydraulic translation mechanism includes:

[0045] The outer casing of the support legs is securely connected to the main frame.

[0046] The inner box of the outrigger is movably connected to the outer box of the outrigger.

[0047] The first hydraulic cylinder is installed inside the outrigger inner box and is used to drive the outrigger outer box and the outrigger inner box to move vertically up and down relative to each other.

[0048] The sliding seat is securely connected to the bottom of the inner box of the support leg;

[0049] The sliding lower seat is horizontally slidably connected to the sliding seat;

[0050] The second hydraulic cylinder is installed between the translation seat and the translation slide seat, and is used to drive the translation seat and the translation slide seat to move horizontally relative to each other.

[0051] Preferably, a hoisting mechanism is installed at the rear end of the main frame corresponding to its walking direction, for hoisting the arch frame onto the arch frame lifting mechanism.

[0052] By adopting the technical solution described above, this utility model has the following beneficial effects:

[0053] (1) This utility model adopts a tracked walking mechanism, which has a larger ground contact area and stronger traction compared to traditional wheeled walking devices. This enables the equipment to maintain good stability and mobility in wet, soft, or uneven tunnel construction environments, reducing the risk of slipping. At the same time, the design of the arch frame lifting mechanism allows the arch frame to be lifted directly from the ground to the top of the main frame, simplifying the arch frame handling process, reducing the need for manual intervention, improving work efficiency, and reducing labor intensity.

[0054] (2) The lifting sliding frame of this utility model is used in conjunction with the lifting slide rail frame to ensure the stability of the arch frame during the lifting process. In particular, the design of the sliding counter-clamping component, by clamping the groove walls on both the inner and outer sides, effectively prevents the lifting sliding frame from lateral swaying or twisting during the lifting process, thereby increasing the safety of the entire operation. This design not only improves the accuracy of arch frame lifting, but also significantly reduces the operational risks caused by center of gravity shift, ensuring the safety and efficiency of the construction process.

[0055] (3) This utility model further introduces a multi-stage longitudinal beam combination upper sliding platform structure, which enhances the overall rigidity and load-bearing capacity of the platform and ensures the straightness and repeatability of the sliding trolley's running trajectory, which is crucial for the precise positioning of the arch frame. In addition, the design of the second telescopic cylinder allows the upper sliding platform to obtain additional support in tunnels excavated using the step method, reducing local stress concentration in the main frame and avoiding structural deformation or instability caused by excessive cantilever length, thereby improving the overall construction safety and adaptability.

[0056] (4) This utility model further improves the sliding trolley by setting multiple bearing rollers at its bottom and adjusting the spacing by adjusting bolts, which greatly improves the compatibility of the sliding trolley with arch frames of different specifications and reduces the possibility of the arch frame sliding or shifting during transportation and lifting. This improvement not only improves construction efficiency but also ensures installation quality and reduces potential safety hazards caused by improper arch frame position.

[0057] (5) This utility model further includes a hydraulic translation mechanism installed at the bottom of the main frame, which enables precise positioning of the platform without the need for external assistance. This design is particularly suitable for construction scenarios with high centering requirements or complex geological conditions, and can significantly improve construction efficiency and installation accuracy. By controlling the first hydraulic cylinder to lift the main frame, and then using the second hydraulic cylinder to push the translation slide block to move laterally, the fine-tuning and positioning of the platform can be easily completed, greatly enhancing the flexibility and applicability of the equipment. Attached Figure Description

[0058] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0059] Figure 2 This is a schematic diagram of the structure of this utility model;

[0060] Figure 3 This is a schematic diagram of the arch frame lifting mechanism;

[0061] Figure 4 This is a structural schematic diagram of the sliding reverse-clamping component;

[0062] Figure 5 This is a schematic diagram of the upper sliding platform.

[0063] Figure 6 This is a schematic diagram of the sliding trolley.

[0064] Figure 7 This is a three-dimensional structural diagram of the hydraulic translation mechanism.

[0065] In the diagram: 1. Main frame; 2. Tracked walking mechanism; 3. Arch frame lifting mechanism; 31. Lifting slide rail frame; 32. Motor; 33. Sprocket; 34. Lifting sliding frame; 341. Outer slider; 35. Sliding reverse buckle component; 351. Reverse buckle bracket; 352. Bearing wheel; 353. Inner slider; 4. Upper sliding platform; 41. Upper longitudinal transfer wheel frame; 42. Arch frame transfer track trolley longitudinal beam; 43. Lower longitudinal transfer wheel frame; 44. Upper longitudinal transfer beam; 45. Lower longitudinal beam; 46. Second telescopic cylinder; 5. Sliding trolley; 51. Trolley frame; 52. Bearing roller; 53. Adjusting bolt; 54. Support bracket; 6. Arch frame hydraulic lifting bracket; 61. First telescopic cylinder; 62. Arch frame lifting frame track beam; 7. Upper platform longitudinal traction mechanism; 8. Hydraulic translation mechanism; 81. Outer leg outer box; 82. Outer leg inner box; 83. Translation seat; 84. Translation sliding seat; 9. Lifting mechanism. Detailed Implementation

[0066] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0067] In the description of this utility model, it should be noted that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0068] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0069] Example 1:

[0070] Combined with appendix Figures 1-2A multi-functional excavation platform for tunnel construction, featuring a track-mounted lifting and installation arch frame, comprises a main frame 1, a tracked walking mechanism 2, an arch frame lifting mechanism 3, and an upper sliding platform 4. The main frame 1 serves as the supporting structure for the overall structure and the foundation for the installation of various functional components. The tracked walking mechanism 2 is installed at the bottom of the main frame 1. This mechanism consists of drive wheels, guide wheels, support wheels, track plates, and a hydraulic drive system. A hydraulic motor drives the tracks to achieve autonomous movement of the entire machine along the longitudinal direction of the tunnel. Compared to traditional wheeled walking devices, the tracked walking mechanism 2 offers advantages such as a large ground contact area, strong adaptability to tunnel surfaces, reduced slippage, and high traction, making it particularly suitable for wet, slippery, soft, or uneven tunnel construction environments.

[0071] An arch frame lifting mechanism 3 is installed at the rear end of the main frame 1 in the direction of travel, used to vertically lift the arch frame placed on the ground to the top height of the main frame 1. An upper sliding platform 4 is installed at the front end of the main frame 1 in the direction of travel. The upper sliding platform 4 can slide back and forth along the longitudinal track of the main frame 1 to realize the longitudinal horizontal transfer of the arch frame inside the platform. An arch frame hydraulic lifting bracket 6 is installed on the upper sliding platform 4 for final positioning and lifting of the arch frame.

[0072] In addition, two sliding trolleys 5 are installed on both the upper sliding platform 4 and the arch hydraulic lifting support 6. The sliding trolleys 5 are used to carry and transfer the arch.

[0073] Furthermore, the main frame 1 is equipped with an upper platform longitudinal traction mechanism 7 for driving the upper sliding platform 4 to move back and forth. This upper platform longitudinal traction mechanism 7 is a commercially available device and can be a hydraulic telescopic rod or a chain drive mechanism. If a chain drive mechanism is used, it includes a motor, a driving sprocket, a driven sprocket, and a closed chain. One end of the chain is fixed to the upper sliding platform 4, and the chain is extended and retracted by the forward and reverse rotation of the motor, thereby driving the upper sliding platform 4 to move precisely along the longitudinal direction of the main frame 1. This structure has the technical advantages of smooth transmission, accurate positioning, and simple maintenance. The main frame 1 is also equipped with a hoisting mechanism 9 at its rear end corresponding to its walking direction, which is used to initially lift the arch frame stacked on the ground and place it on the support position of the arch frame lifting mechanism 3. This hoisting mechanism 9 is a commercially available device, such as an electric hoist, which has the characteristics of compact structure, stable lifting, and convenient operation, and can effectively improve the initial handling efficiency of the arch frame and reduce the intensity of manual labor.

[0074] During the installation of the arch frame, the crawler-driven mechanism 2 first drives the main frame 1 to the predetermined installation position. Then, the hoisting mechanism 9 lifts the arch frame from the ground to the support area of ​​the arch frame lifting mechanism 3. The arch frame lifting mechanism 3 then activates and vertically lifts the arch frame to the top height of the main frame 1. At this time, the upper sliding platform 4 moves backward under the drive of the upper platform longitudinal traction mechanism 7, causing its two sliding trolleys 5 to move backward synchronously to align with the lifted arch frame. The arch frame lifting mechanism 3 then descends, smoothly placing the arch frame onto the two sliding trolleys 5 on the upper sliding platform 4. Next, the upper sliding platform 4 moves forward, and simultaneously, its two sliding trolleys 5 move forward along the platform track until they are completely aligned with the two sliding trolleys 5 on the arch frame hydraulic lifting support 6 in spatial position. At this point, the arch frame hydraulic lifting support 6 initiates its upward movement, with the two sliding trolleys 5 lifting the arch frame, completing the transfer of the arch frame from the transport state to the installation preparation state. Then, the precise positioning and installation of the arch frame can be carried out.

[0075] Example 2:

[0076] Combined with appendix Figure 1 , 3 4. A multi-functional excavation platform for track-type lifting and installing arch frames for tunnel construction, differing from Embodiment 1 in that: based on Embodiment 1, the arch frame lifting mechanism 3 specifically includes a lifting slide rail 31, a lifting sliding frame 34, and a sliding counter-clamping component 35. The lifting slide rail 31 is a vertically arranged rigid structure, firmly connected to the main frame 1, with symmetrically arranged grooves on both sides along the height direction, serving as guide rails. The lifting sliding frame 34 slides in cooperation with the grooves of the lifting slide rail 31 through its outer structure, and its front end is designed as a fork-shaped structure to stably support the bottom of the arch frame and prevent the arch frame from shifting or overturning during lifting. The sliding counter-clamping component 35 is installed on both sides of the lifting sliding frame 34 and slides in cooperation with the inner wall of the groove of the lifting slide rail 31, its function being to prevent the lifting sliding frame 34 from derailing or shaking due to uneven force during lifting.

[0077] A drive device is installed on the lifting slide rail 31 to drive the lifting slide frame 34 and the sliding reverse fastener 35 to rise and fall vertically along the lifting slide rail 31. The drive device can be a hydraulic telescopic rod or a chain drive mechanism. When a chain drive mechanism is used, it includes a motor 32, two sprockets 33 and a closed chain. The motor 32 is fixedly installed at the bottom of the lifting slide rail 31, one sprocket 33 is installed on the output shaft of the motor 32, and the other sprocket 33 is installed on the top of the lifting slide rail 31. The chain is wound between the two sprockets 33, and one end of the chain is fastened to the lifting slide frame 34. When the motor 32 is running, it drives the lifting slide frame 34 to achieve smooth lifting and lowering through the chain. This structure has the advantages of long lifting stroke, strong load capacity and smooth operation.

[0078] Furthermore, an outer slider 341 is installed on the lifting sliding frame 34, which slides in contact with the outer wall of the groove of the lifting slide rail frame 31. The sliding reverse clamping component 35 includes a reverse clamping bracket 351, a bearing wheel 352, and an inner slider 353. The reverse clamping bracket 351 is fixedly connected to the lifting sliding frame 34, the bearing wheel 352 is installed on the reverse clamping bracket 351 and rolls in contact with the inner wall of the groove, and the inner slider 353 is installed on the reverse clamping bracket 351 and slides in contact with the inner wall of the groove. By clamping the groove wall from both the inner and outer sides of the groove with the inner slider 353 and the outer slider 341 respectively, a bidirectional constraint is formed, which effectively limits the lateral swing and torsion of the lifting sliding frame 34 during the lifting process, significantly improving the stability and safety of the lifting process and avoiding the risk of jamming or overturning caused by the offset of the arch frame's center of gravity.

[0079] Example 3:

[0080] Combined with appendix Figure 1 , 2 5. A multi-functional excavation platform for installing arch frames using a track-type lifting mechanism in tunnel construction, based on Embodiment 1 or Embodiment 2, wherein the upper sliding platform 4 includes an upper longitudinal transfer wheel frame 41 and a lower longitudinal transfer wheel frame 43. The upper longitudinal transfer wheel frame 41 is rigidly connected to the upper crossbeam of the main frame 1, and a longitudinal upper beam 44 is slidably fitted on it. An arch frame transfer track trolley longitudinal beam 42 is fixedly connected to the front end of the longitudinal upper beam 44. A sliding trolley 5 is installed on the arch frame transfer track trolley longitudinal beam 42 to support the arch frame and achieve its lateral positioning and transfer on the upper sliding platform 4. This structure, through the combination of multiple longitudinal beams, gives the upper sliding platform 4 good rigidity and load-bearing capacity, while ensuring the straightness and repeatability of the sliding trolley 5's running trajectory, which is beneficial for the efficient connection of the arch frame installation.

[0081] The lower longitudinal sliding wheel frame 43 is rigidly connected to the lower crossbeam of the main frame 1, and a lower longitudinal sliding beam 45 is slidably fitted on it. The lower longitudinal sliding beam 45 is rigidly connected to the upper longitudinal sliding beam 44 through a vertical support, forming an integrated sliding structure with upper and lower linkage. A second telescopic cylinder 46 is installed at the bottom of the lower longitudinal sliding beam 45. This second telescopic cylinder 46 can extend and contact the step surface inside the tunnel during the installation of the arch frame, thereby providing an additional support point and transferring part of the load of the upper sliding platform 4 to the step surface, effectively reducing local stress concentration in the main frame 1. This design is particularly suitable for tunnel construction scenarios using the step excavation method, maintaining the overall stability of the platform at different excavation section heights, avoiding structural deformation or instability caused by excessive cantilever length, and improving construction safety and adaptability.

[0082] The hydraulic lifting support 6 for the arch frame includes a first telescopic cylinder 61 and an arch frame lifting frame track beam 62. The first telescopic cylinder 61 is vertically installed on the longitudinal upper beam 44, and its piston rod is connected to the arch frame lifting frame track beam 62. A sliding trolley 5 is installed on the arch frame lifting frame track beam 62 for final lifting of the arch frame and precise positioning. This structure achieves stepless lifting of the arch frame through hydraulic drive, with high adjustment accuracy, fast response speed, and the ability to flexibly adjust the installation height of the arch frame according to the tunnel contour to meet the construction needs of different cross-sectional dimensions.

[0083] Example 4:

[0084] Combined with appendix Figure 1 , 2 According to Embodiment 6, a multi-functional excavation platform for track-type lifting and mounting arch frames used in tunnel construction, based on any of the embodiments in Embodiments 1 to 3, the sliding trolley 5 includes a trolley frame 51 and a support bracket 54. The top of the trolley frame 51 is provided with a support portion for direct contact with the web or flange of the arch frame, and its bottom is designed as a downward-opening groove structure to enclose the track beam for stable guidance. Multiple bearing rollers 52 are installed on the bottom and side walls of the groove structure of the trolley frame 51. These bearing rollers 52 roll in contact with the surface of the track beam, significantly reducing sliding resistance, improving sliding smoothness and positioning accuracy, while also reducing wear and extending service life.

[0085] A support bracket 54 is fastened to one side of the trolley frame 51. An adjusting bolt 53 passes through this support bracket 54 and is threadedly connected to it, with its end facing the support portion at the top of the trolley frame 51. By tightening the adjusting bolt 53, the distance between it and the support portion can be finely adjusted to accommodate arches of different specifications or cross-sectional dimensions, ensuring that the arches are reliably clamped and evenly stressed. This structure not only improves the compatibility of the sliding trolley 5 with various arch types but also eliminates gaps during installation through pre-tightening adjustments, preventing the arches from sliding or shifting during transport or lifting, thus ensuring construction safety and installation quality.

[0086] Example 5:

[0087] Combined with appendix Figure 1 , 2According to Embodiment 7, a multi-functional excavation platform for track-type lifting and mounting arch frames used in tunnel construction, based on any of the embodiments in Embodiments 1 to 3, is equipped with hydraulic translation mechanisms 8 at the four corners of the bottom of the main frame 1. The hydraulic translation mechanism 8 includes an outer leg box 81, an inner leg box 82, a translation seat 83, and a translation sliding seat 84. The outer leg box 81 is fastened to the bottom corner of the main frame 1; the inner leg box 82 is inserted into the outer leg box 81, forming a vertical telescopic joint. A first hydraulic cylinder is installed inside the inner leg box 82, with its cylinder body connected to the outer leg box 81 and its piston rod connected to the inner leg box 82, for driving the inner leg box 82 to perform vertical lifting and lowering movements relative to the outer leg box 81.

[0088] The translation seat 83 is fixedly connected to the bottom of the inner box 82 of the outrigger, and the translation sliding seat 84 forms a horizontal sliding pair with the translation seat 83, and is guided by a guide rail or slider structure. A second hydraulic cylinder is installed between the translation seat 83 and the translation sliding seat 84, which is used to drive the two to move laterally relative to each other along the tunnel. When it is necessary to make lateral fine-tuning and positioning of the main frame 1, the first hydraulic cylinders at the four corners are controlled to extend synchronously, so that the main frame 1 is raised as a whole until the track walking mechanism 2 is completely off the ground; then, the second hydraulic cylinder is controlled to move, pushing the translation sliding seat 84 to slide laterally relative to the translation seat 83, thereby driving the entire main frame 1 to move laterally along the tunnel cross section. This hydraulic translation mechanism 8 can achieve precise positioning of the platform without relying on external equipment, and is particularly suitable for construction scenarios where the arch frame installation has high centering requirements or where geological conditions limit the frequent movement of the whole machine, significantly improving construction efficiency and installation accuracy.

[0089] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and are intended to include all changes that fall within the meaning and scope of equivalents within this utility model.

Claims

1. A multi-functional excavation platform for track-mounted lifting and installing arch frames in tunnel construction, characterized in that, include: Main frame (1); Tracked walking mechanism (2) is installed at the bottom of the main frame (1) and is used to drive the main frame (1) to move longitudinally along the tunnel; The arch frame lifting mechanism (3) is installed at the rear end of the main frame (1) in the direction of travel; The upper sliding platform (4) is installed on the main frame (1) and can move back and forth along the main frame (1); The arch frame hydraulic lifting support (6) is installed on the sliding platform (4); There are four sliding trolleys (5); two of them are installed on the upper sliding platform (4) to transfer the arch frame on the arch frame lifting mechanism (3) to the arch frame hydraulic lifting bracket (6); the other two are installed on the arch frame hydraulic lifting bracket (6) to transfer the arch frame on the arch frame hydraulic lifting bracket (6) to the predetermined installation position.

2. The multi-functional excavation platform for track-mounted lifting and installing arch frames for tunnel construction as described in claim 1, characterized in that, The arch lifting mechanism (3) includes: The lifting slide rail (31) is vertically and securely connected to the main frame (1), and has sliding grooves on both sides; The lifting sliding frame (34) slides in conjunction with the lifting sliding rail frame (31); it is used to lift the arch frame. The sliding reverse fastening component (35) slides in conjunction with the groove of the lifting slide rail (31) and is fastened to the lifting slide rail (34); The drive unit is installed on the lifting slide rail (31) and is used to drive the lifting slide rail (34) and the sliding reverse fastener (35) to slide vertically up and down along the lifting slide rail (31).

3. The multi-functional excavation platform for track-mounted lifting and installing arch frames for tunnel construction as described in claim 2, characterized in that, The lifting slide frame (34) is equipped with an outer slider (341) that slides in cooperation with the lifting slide frame (31); the sliding reverse fastening component (35) includes: The reverse bracket (351) is securely connected to the lifting sliding frame (34); The bearing wheel (352) is mounted on the reverse bracket (351) and rolls with the groove of the lifting slide rail frame (31); The inner slider (353) is installed on the reverse bracket (351) and slides in cooperation with the groove of the lifting slide rail (31); The inner slider (353) and the outer slider (341) work together to clamp the groove wall of the lifting slide rail frame (31).

4. The multi-functional excavation platform for track-mounted lifting and installing arch frames for tunnel construction as described in claim 2 or 3, characterized in that, The driving device is a telescopic rod; or the driving device is a chain drive mechanism, the chain drive mechanism comprising: The motor (32) is installed at the bottom of the lifting slide rail frame (31); Two sprockets (33), one of which is mounted on the output end of the motor (32) and the other is mounted on the top of the lifting slide rail (31); The chain, in conjunction with two sprockets (33), has one section of which is securely connected to the lifting slide frame (34); the chain is driven by a motor (32), which in turn causes the lifting slide frame (34) to move up and down.

5. The multi-functional excavation platform for track-mounted lifting and installing arch frames for tunnel construction as described in claim 1, characterized in that, The upper sliding platform (4) includes: The upper longitudinal transfer wheel frame (41) is fastened to the upper crossbeam of the main frame (1); The lower longitudinal transfer wheel frame (43) is fastened to the lower crossbeam of the main frame (1); The upper longitudinal beam (44) slides in conjunction with the upper longitudinal wheel frame (41); The longitudinal beam (42) of the arch frame transfer track trolley is fastened to the longitudinal beam (44) of the longitudinal movement; a sliding trolley (5) is installed on the longitudinal beam (42) of the arch frame transfer track trolley. The lower longitudinal beam (45) slides in conjunction with the lower longitudinal wheel frame (43); the lower longitudinal beam (45) is fastened to the upper longitudinal beam (44) via a bracket; The second telescopic cylinder (46) is installed at the bottom of the longitudinal beam (45).

6. The multi-functional excavation platform for track-mounted lifting and installing arch frames for tunnel construction as described in claim 5, characterized in that, The arch hydraulic lifting support (6) includes: The first telescopic cylinder (61) is vertically mounted on the longitudinal beam (44); The arch frame lifting frame track beam (62) is installed on the first telescopic cylinder (61); a sliding trolley (5) is installed on the arch frame lifting frame track beam (62).

7. The multi-functional excavation platform for track-mounted lifting and installing arch frames for tunnel construction as described in claim 1, characterized in that, The sliding trolley (5) includes: The trolley frame (51) has a support at the top and a trough-shaped structure at the bottom; There are multiple bearing rollers (52), which are respectively installed on the bottom of the groove and the two groove walls of the trolley frame (51); The support bracket (54) is fastened to one side of the trolley frame (51); Adjusting bolt (53) passes through support bracket (54) and is threaded to support bracket (54). The arch frame is supported by adjusting bolt (53) and support part at the top of trolley frame (51).

8. The multi-functional excavation platform for track-mounted lifting and installing arch frames for tunnel construction as described in claim 1, characterized in that, The main frame (1) is equipped with an upper platform longitudinal traction mechanism (7) for driving the upper sliding platform (4); the upper platform longitudinal traction mechanism (7) is a telescopic rod or chain drive mechanism.

9. The multi-functional excavation platform for track-mounted lifting and installing arch frames for tunnel construction as described in claim 1, characterized in that, The main frame (1) is equipped with hydraulic translation mechanisms (8) at its four bottom corners; the hydraulic translation mechanisms (8) include: The outer box of the support leg (81) is fastened to the main frame (1); The inner box (82) of the outrigger is movably connected to the outer box (81) of the outrigger; The first hydraulic cylinder is installed inside the outrigger inner box (82) and is used to drive the outrigger outer box (81) and the outrigger inner box (82) to move vertically up and down relative to each other. The translation seat (83) is securely connected to the bottom of the inner box (82) of the support leg; The sliding lower seat (84) is horizontally slidably connected to the sliding seat (83); The second hydraulic cylinder is installed between the translation seat (83) and the translation slide seat (84) to drive the translation seat (83) and the translation slide seat (84) to move horizontally relative to each other.

10. The multi-functional excavation platform for track-mounted lifting and installing arch frames for tunnel construction as described in claim 1, characterized in that, The main frame (1) is equipped with a hoisting mechanism (9) at its rear end corresponding to its walking direction, which is used to hoist the arch frame onto the arch frame lifting mechanism (3).

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