Vertical transportation type tunnel arch frame mounting structure

The mechanized installation of steel arch frames is achieved through hydraulic lifting devices and support mechanisms, which solves the problem of relying on manual angle adjustment of steel arch frames in the prior art, improves installation accuracy and efficiency, and reduces workers' labor intensity and safety risks.

CN120465983APending Publication Date: 2025-08-12SICHUAN RAILWAY CONSTR CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202510917145.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-03
Publication Date
2025-08-12

AI Technical Summary

Technical Problem

Although the existing steel arch frame installation structure partially uses machinery instead of manual labor, workers still need to manually adjust the angle, resulting in inefficient installation.

Method used

The vertical transport tunnel arch frame installation structure is adopted, and the hydraulic lifting device and support mechanism are used to adjust the position and angle of the steel arch frame mechanically, and the lifting mechanism is used to move the steel arch frame to the inner wall of the tunnel to achieve full mechanized installation.

Benefits of technology

It improves the accuracy and efficiency of steel arch frame installation, reduces workers' labor intensity, reduces safety risks, and shortens process time.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120465983A_ABST
    Figure CN120465983A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of tunnel construction, and particularly discloses a vertical transportation type tunnel arch frame mounting structure which comprises a mounting frame, a through groove is formed in the mounting frame, a hydraulic lifting device is arranged in the through groove, and the hydraulic lifting device comprises a lifting platform; a supporting mechanism used for supporting the steel arch is arranged on the lifting platform, the supporting mechanism comprises a first connecting frame and two second connecting frames, and the first connecting frame and the two second connecting frames are all in an arc shape; a connecting mechanism used for fixing the first connecting frame and the two sets of second connecting frames is arranged on the lifting platform and comprises two sets of movable blocks, and the two sets of movable blocks are slidably clamped to the two ends of the lifting platform respectively. The technical problem that when an existing steel arch mounting structure is used for mounting a steel arch, part of manpower can be replaced with machinery, but the angle of the steel arch still needs to be adjusted by workers in a lifting mode, and therefore the efficiency of mounting the steel arch is reduced is solved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the technical field of tunnel construction, and particularly discloses a vertical transport type tunnel arch mounting structure. Background Art

[0002] As China's transportation becomes more and more developed, more and more tunnels are being built. The cross-section of a tunnel is similar to an ellipse. The length of a steel arch frame in the tunnel is fixed, so the steel arch frame of the same cross-section of the tunnel is usually composed of multiple sections. In the construction of small-section tunnels, excavation trolleys are usually used to install the arch frames. When installing the arch frames, workers usually carry them on their shoulders and support them with their hands. This is a great test for the workers' physical fitness. In addition, due to the high intensity of the workers' work and the uneven physical fitness of the workers, it is easy to cause the risk of falling blocks, posing a threat to the life and safety of the construction workers. It has the disadvantages of a large number of workers and a long process time, resulting in low positioning accuracy and efficiency when installing the steel arch frames.

[0003] For example, the invention patent with patent number CN103924989B discloses a tunnel initial support steel arch frame installation platform and a steel arch frame installation method, which includes a lower support, an upper support and a steel arch frame jacking system. When the steel arch frame needs to be installed on the inner wall of the tunnel, the operator can lift the steel arch frame to the installation position through the steel arch frame jacking system, which solves the shortcomings of the existing steel arch frame simply lifted by hand, which is labor-intensive and slow to install. When installing the steel arch frame, the existing steel arch frame installation structure can use machinery instead of manual labor, thereby avoiding the shortcomings caused by manual lifting of the steel arch frame. However, since the steel arch frame on a cross section of the tunnel is composed of multiple sections, workers are still required to adjust the angle of the steel arch frame and adjust the steel arch frame when installing the steel arch frame, so as to ensure the positioning accuracy, resulting in reduced efficiency in installing the steel arch frame. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a vertical transportation tunnel arch frame installation structure to solve the technical problem that the existing steel arch frame installation structure can replace part of the manual work with machinery when installing the steel arch frame, but the adjustment of the steel arch frame angle still requires workers to complete it through lifting, thereby reducing the efficiency of installing the steel arch frame.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a vertical transport tunnel arch frame installation structure, a vertical transport tunnel arch frame installation structure, comprising a mounting frame, a through slot being provided on the mounting frame, a hydraulic lifting device being provided in the through slot, and the hydraulic lifting device comprising a lifting platform; a supporting mechanism for supporting the steel arch frame is provided on the lifting platform, the supporting mechanism comprising a first connecting frame and a second connecting frame, the first connecting frame and two groups of the second connecting frames are both arc-shaped, and two groups of fixing components for fixing the second connecting frame are provided on the lifting platform; a connecting mechanism for fixing the first connecting frame and the two groups of the second connecting frames is provided on the lifting platform, the connecting mechanism comprising two groups of movable blocks, the two groups of the movable blocks are respectively slidably mounted at both ends of the lifting platform; a first matching block is provided on each of the two groups of the movable blocks, a first matching groove is provided on both ends of the first connecting frame, and the two groups of the first matching grooves are respectively mounted on the two groups of the first matching blocks; a second matching groove is provided on each of the two groups of the second connecting frames, and the two groups of the movable blocks are respectively mounted in the second matching groove. The position and angle of the steel arch frame are adjusted through the supporting structure, and the steel arch frame is moved to the inner wall of the tunnel with the help of the hydraulic lifting device. At this time, the steel arch frame can be directly fixed on the inner wall of the tunnel. When installing the steel arch frame, the steel arch frame is moved in a fully mechanical way, which improves the accuracy and efficiency of the installation of the steel arch frame.

[0006] Furthermore, the support mechanism includes several groups of support columns of varying heights, one end of each of which is fixedly connected to the lifting platform, and the other end of each of which contacts the first connecting frame. The first connecting frame is provided with two groups of fixed rods and several groups of hydraulic cylinders, and the two groups of the second connecting frames are each provided with two groups of hydraulic cylinders. The two groups of fixed rods and the several groups of hydraulic cylinders are connected to the steel arch frame via a connecting assembly. The support structure supports the steel arch frame and can pre-connect the steel arch frame, making it easier for workers to connect the steel arch frame, thereby improving the efficiency of the steel arch frame installation.

[0007] Furthermore, the connecting mechanism includes a double-ended screw that is rotatably connected to the lifting platform. Two sets of movable blocks are respectively mounted on both ends of the double-ended screw, and each double-ended screw is fixedly connected to a handwheel. The lifting platform is provided with two sets of sliding grooves, and the two sets of movable blocks are slidably mounted in the two sets of sliding grooves. The connecting mechanism can adjust the distance between the two sets of movable blocks, thereby enabling the first connecting frame and the second connecting frame of different sizes to be fixed, thereby improving the adaptability of the tunnel arch frame installation mechanism.

[0008] Furthermore, the connecting assembly includes a connecting block that is clamped onto the steel arch frame. A connecting rod is installed within the connecting block and the steel arch frame, and the connecting rod is fixedly connected to one end of the hydraulic cylinder telescopic rod or fixed rod. The connecting assembly is used to connect the steel arch frame to the fixed rod or hydraulic rod.

[0009] Furthermore, the fixing assembly includes two sets of support blocks, both sets of support blocks are clamped on the fixing block, and the support block is provided with a rectangular block, and the rectangular block is fixedly connected to the lifting platform by bolts. The fixing assembly is used to fix the second connecting frame so that the second connecting frame can be fixed to the lifting platform.

[0010] Furthermore, the mounting frame includes a plurality of vertically arranged mounting platforms, each of which is provided with a handrail. The hydraulic lifting device includes a fixing frame fixedly connected to both sides of the through slot, and the lifting platform is slidably mounted on the fixing frame. Workers can walk on the mounting platforms, making it easier for them to install the steel arch frame.

[0011] Furthermore, the mounting frame is provided with two sets of lifting mechanisms for lifting the steel arch frame, and the two sets of lifting mechanisms are respectively located on both sides of the steel arch frame; the lifting mechanism includes a hoist and a first fixed column, the hoist is provided with a steel cable, the first fixed column is provided with several sets of second fixed columns, and the several sets of second fixed columns are fixed to the mounting frame, the first fixed column is provided with a movable sleeve, the movable sleeve is provided with a fixed ring, and the steel cable is installed in the fixed ring; the first fixed column is provided with several sets of third card slots, and the third card slots are provided with card blocks. The lifting mechanism is used to lift the steel arch frame and move the steel arch frame from the bottom surface to the support mechanism, eliminating the need for workers to move the steel arch frame by carrying it on their shoulders or by hand, thereby improving the efficiency of installing the steel arch frame.

[0012] Furthermore, the mounting frame is equipped with a horizontal movement device, comprising a fixed base, two sets of slide rails mounted on the fixed base, two sets of sliders mounted on each of the two sets of slide rails, and four sets of sliders fixed to a movable platform. The movable platform is equipped with a moving motor, a rotatable screw mounted within the fixed base, and the moving motor is mounted on the screw. A laser transmitter is also mounted on the movable platform. The horizontal movement device and the laser transmitter work together to ensure that workers know exactly where the mounting frame should stop, improving the accuracy of the steel arch installation and eliminating the need for repeated adjustments, thereby ensuring efficient installation.

[0013] The working principle and beneficial effects of this solution are: When in use, first coordinate the horizontal moving device with the laser emission to move the mounting frame to the designated position, then move the steel arch frame to the two sets of fixed rods through the lifting mechanism, and fix the steel arch frame to the two sets of fixed rods through the connecting assembly. Then raise the lifting platform, and fix the adjacent steel arch frames on the corresponding hydraulic cylinders in turn through the connecting assembly. Each set of connecting assemblies is controlled by two sets of hydraulic cylinders, which can adjust the angle and position of the steel arch frame until the steel arch frame is moved to the position connected to the adjacent steel arch frame, and fix the two adjacent sets of steel arch frames together until several sets of steel arch frames are fixed on the supporting mechanism. Workers only need to fix the steel arch frame to the inner wall of the tunnel, and there is no need for workers to move the steel arch frame to the designated position by carrying it on their shoulders or supporting it with their hands, which improves the efficiency and accuracy of installing the steel arch frame.

[0014] The curvature of the first connecting frame and the second connecting frame is equal to the curvature of the tunnel. One of the steel arch frames is fixed by two sets of fixing rods to guide the position of the remaining steel arch frames. The position of the fixed steel arch frame is used as the origin, and the remaining steel arch frames are moved to the appropriate position by the hydraulic cylinder. The adjacent steel arch frames are first connected, and then the steel arch frame is connected to the tunnel. When connecting the two sets of steel arch frames, it is usually adopted to connect them with screws and nuts first, and then repair welding is performed to ensure that the connection between the two sets of steel arch frames is firm. When welding between the two sets of steel arch frames, since the position of the steel arch frame does not contact the inner wall of the tunnel, it is convenient for the staff to weld the steel arch frame, and there will be no situation where the staff are inconvenient to weld in some positions that need to be welded due to being blocked by the inner wall of the tunnel, thereby improving the efficiency of installing the steel arch frames. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of an embodiment; Figure 2 Schematic diagram of the structure of the connecting mechanism and the supporting mechanism in the embodiment; Figure 3 This is an enlarged schematic diagram of region A in the embodiment; Figure 4 A side view of the connecting mechanism and the supporting mechanism in the embodiment; Figure 5 Schematic diagram of the structure of the horizontal moving device in the embodiment; Figure 6 Schematic diagram of the structure of the mounting frame and the hydraulic lifting device in the embodiment; Figure 7 Schematic diagram of the structure of the lifting mechanism in the embodiment.

[0016] The numbers in the drawings are as follows: first connecting frame 301, second connecting frame 302, supporting column 303, fixing rod 304, connecting block 305, through hole 306, connecting rod 307, first limiting block 308, first limiting groove 309, first clamping groove 310, first matching groove 311, second matching groove 312, fixing block 313, supporting block 314, second clamping groove 315, rectangular block 316, hydraulic cylinder 317; Movable block 501, first matching block 502, sliding groove 503, second limiting block 504, second limiting groove 505, double-headed screw 506, hand wheel 507; Horizontal moving device 6, fixed base 601, slide rail 602, slider 603, moving platform 604, lead screw 605, moving motor 606; Winch 701 , steel cable 702 , first fixed column 703 , movable sleeve 704 , third limiting groove 705 , third limiting block 706 , second fixed column 707 , third clamping groove 708 , clamping block 709 , fixed ring 710 . DETAILED DESCRIPTION

[0017] The following is further described in detail through specific implementation methods: Example like Figures 1 to 7 As shown, a vertical transport tunnel arch installation structure is disclosed, including a mounting frame 1, the mounting frame 1 includes several groups of vertically arranged mounting platforms 101, each two adjacent groups of mounting platforms 101 are fixedly connected, and guardrails 103 are provided on the mounting platforms 101; two groups of rails 8 are provided in the tunnel, the mounting frame 1 is slidably mounted on the two groups of rails 8, the mounting frame 1 is provided with a driving device for driving the mounting frame 1 to move on the rails 8, a through slot 102 is opened on the mounting frame 1, a hydraulic lifting device 2 is provided in the through slot 102, the hydraulic lifting device 2 includes a fixed frame 201 and a lifting platform 202, the fixed frame 201 is fixedly connected to the mounting frame 1, and the lifting platform 202 is slidably mounted on the fixed frame 201, as shown in FIG. Figure 6 As shown; the driving device and the hydraulic lifting device 2 are both technical means commonly used by those skilled in the art, and their structures, installation methods and usage methods are all technologies well known to those skilled in the art.

[0018] The lifting platform 202 is provided with an adjustable distance connection mechanism, which includes a double-headed screw 506. The double-headed screw 506 is located at the bottom of the lifting platform 202 and is rotatably connected to the lifting platform 202. Both ends of the double-headed screw 506 are equipped with movable blocks 501. Both ends of the double-headed screw 506 are fixedly connected to hand wheels 507. Two groups of movable blocks 501 are located between the two groups of hand wheels 507. One end of the movable block 501 is provided with a first matching block 502; two groups of sliding grooves 503 are provided on the lifting platform 202, and the two groups of movable blocks 501 are respectively slidably mounted in the two groups of sliding grooves 503. Two groups of second limit blocks 504 are provided on the movable block 501. Second limit grooves 505 are provided on both sides of the sliding grooves 503. The two groups of second limit blocks 504 are respectively slidably mounted in the second limit grooves 505. Figures 2 to 4 shown.

[0019] The lifting platform 202 is provided with a support mechanism for installing the steel arch frame 4, which includes a first connecting frame 301 and two groups of second connecting frames 302. The first connecting frame 301 and the two groups of second connecting frames 302 are both arc-shaped, and the shape of the arc is the same as the shape of the tunnel; both ends of the first connecting frame 301 are provided with a first matching groove 311, and the two groups of first matching grooves 311 are respectively clamped on the two groups of first matching blocks 502, and the second connecting frame 302 is provided with a second matching groove 312, one end of the movable block 501 is clamped in the second matching groove 312, and the second connecting frame 302 is fixedly connected to the lifting platform 202 through a fixing assembly; two groups of fixing rods 304 and several groups of hydraulic cylinders 317 are provided on the first connecting frame 301, and one end of the two groups of fixing rods 304 is fixedly connected to the first 301, and the other end is fixed to the steel arch frame 4 through a connecting assembly. The fixed ends of several groups of hydraulic cylinders 317 are fixedly connected to the first connecting frame 301 by bolts. The telescopic ends of every two groups of hydraulic cylinders 317 are fixedly connected to one group of steel arch frames 4 through a connecting assembly. Several groups of support columns 303 of different lengths are provided on the lifting platform 202. One end of the support column 303 is fixedly connected to the lifting platform 202 by bolts, and the other end of the support column 303 contacts the inner wall of the first connecting frame 301 to lift the first connecting frame 301; the two groups of second connecting frames 302 are respectively located at both ends of the first connecting frame 301, and two groups of hydraulic cylinders 317 are fixedly connected to the second connecting frame 302 by bolts. The telescopic ends of the two groups of hydraulic cylinders 317 are fixedly connected to the steel arch frame 4 through a connecting assembly, such as Figures 2 to 4 shown.

[0020] Two sets of fixing components are provided on the lifting platform 202, and the two sets of fixing components are used to fix the two sets of second connecting frames 302 respectively. The fixing components include two sets of support blocks 314, and the two sets of support blocks 314 are respectively located on both sides of the lifting platform 202. A second card slot 315 is opened on the support block 314, and a fixing block 313 is fixedly connected to the second connecting frame 302. The two ends of the fixing block 313 are respectively clamped in the two sets of second card slots 315. A rectangular block 316 is provided on the support block 314, and the rectangular block 316 is fixedly connected to the lifting platform 202 by bolts. Figure 2 and Figure 3 shown.

[0021] The connecting assembly includes a connecting block 305, which is U-shaped and is mounted on the steel arch frame 4. The steel arch frame 4 is provided with a circular hole 401. The connecting block 305 is provided with two groups of through holes 306. The two groups of through holes 306 are located on both sides of the circular hole 401. Connecting rods 307 are installed in the two groups of through holes 306 and the circular hole 401. Two groups of first limiting blocks 308 are provided at both ends of the connecting rod 307. Two groups of first limiting grooves 309 and two groups of first card slots 310 are provided in the through hole 306. The four groups of first limiting blocks 308 are respectively slidably mounted in the four groups of first card slots 310. Figure 2 and Figure 3 shown.

[0022] The mounting frame 1 is provided with two sets of lifting mechanisms for lifting the steel arch frame 4, and the two sets of lifting mechanisms are respectively located on both sides of the through slot 102. The lifting mechanisms include a hoist 701 and a first fixed column 703. The hoist 701 is aligned with the center of the first fixed column 703, and the hoist 701 is fixedly connected to the mounting frame 1 by bolts. A steel cable 702 is wound around the hoist 701, and one end of the steel cable 702 is fixedly connected to the hoist 701. Several groups of second fixed columns 707 are provided on the first fixed column 703, and the other ends of the several groups of second fixed columns 707 are fixedly connected to the mounting frame 1 by bolts. A movable sleeve 704 is set on the first fixed column 703. The first fixed column 703 It is a cylinder, the movable sleeve 704 is a fan ring block, the angle of the fan ring is greater than 180 degrees, to ensure that the movable sleeve 704 will not separate from the first fixed column 703, a fixed ring 710 is provided on the movable sleeve 704, the steel cable 702 is installed in the fixed ring 710, a third limiting block 706 is provided on the movable sleeve 704, a third limiting groove 705 is provided on the first fixed column 703, the third limiting block 706 is slidably mounted in the third limiting groove 705, a plurality of groups of third card grooves 708 are provided on the first fixed column 703, a card block 709 is mounted on the first fixed column 703, the third card block 709 is U-shaped, and one end of the third card block 709 is located in one of the third card grooves 708, such as Figure 7 shown.

[0023] A horizontal moving device 6 is provided on the installation platform 101 at the top, and the horizontal moving device 6 includes a fixed seat 601, and two groups of slide rails 602 are fixedly connected to the fixed seat 601, and two groups of sliders 603 are slidably mounted on the two groups of slide rails 602, and the four groups of sliders 603 are fixedly connected to the moving platform 604, and a moving motor 606 is provided at the bottom end of the moving platform 604, and a rotatable screw 605 is provided on the fixed seat 601, and the moving motor 606 is installed in the screw 605; a laser emitter 9 is provided on the fixed platform, and the laser emitter 9 cooperates with the horizontal moving device 6 to measure the distance between the steel arch frame 4 being installed and the adjacent steel arch frame 4, so as to ensure the efficiency of installing the steel arch frame 4; the horizontal moving device 6 and the laser emitter 9 are both technical means commonly used by those skilled in the art, and their structure and use methods are technologies well known to those skilled in the art, such as Figure 5 shown.

[0024] When implementing First, move the mounting frame 1, and move the mounting frame 1 to a suitable position through the cooperation of the driving device and the track 8; since the distance between the center of the through slot 102 and the horizontal moving device 6 is fixed, when the horizontal moving device 6 is adjusted to drive the laser emitter 9 to move, the emitted laser is irradiated on the center of the adjacent steel arch frame 4, the distance between the laser emitter 9 and the origin of the horizontal moving device 6 plus the distance between the center of the through slot 102 and the horizontal moving device 6 is the distance between the steel arch frame 4 to be installed and the adjacent steel arch frame 4; the horizontal moving device 6 can cooperate with the laser emitter 9 to improve the positioning accuracy during installation.

[0025] Rotate the hand wheel 507 to drive the double-headed screw 506 to rotate, and drive the movable block 501 to slide in the sliding groove 503 through the thread, and drive the second limit block 504 to slide in the second limit groove 505. The two groups of movable blocks 501 move in opposite directions and at the same speed until the two groups of movable blocks 501 are moved to the specified position. At this time, the distance between the two groups of movable blocks 501 is equal to the distance between the two ends of the first connecting frame 301. Then, several groups of support columns 303 are fixed to the lifting platform by bolts. 202, and then install the first connecting frame 301, and clamp the two groups of first matching grooves 311 on the two groups of first matching blocks 502 respectively. At this time, the inner wall of the first connecting frame 301 is connected to several groups of support columns 303, and the support columns 303 lift the first connecting frame 301, and the first connecting frame 301 is fixed on the lifting platform 202 by gravity; the two groups of movable blocks 501 can be quickly moved to the specified position, so as to install the first connecting frame 301, thereby improving the efficiency of installing the steel arch frame 4.

[0026] Move the two sets of movable sleeves 704, the movable sleeves 704 slide on the first fixed column 703, driving the third limit block 706 to slide in the third limit groove 705, and the movable sleeve 704 drives the fixed ring 710 to move until the two sets of movable sleeves 704 are moved to the appropriate position. At this time, the two sets of movable sleeves 704 are vertically aligned with the two sets of fixed rods 304 respectively, and then the clamping block 709 is clamped in the corresponding clamping slot. At this time, the clamping block 709 is located between the winch 701 and the movable sleeve 704, and then the two sets of steel cables 702 are respectively passed through the fixed ring 710 to fix the two sets of steel cables 702 to the steel arch frame 4; by moving the position of the movable sleeve 704, the shape of the steel cable 702 is changed, so that the winch 701 can hoist the steel arch frame 4.

[0027] Start the winch 701, which drives the steel arch 4 to rise through the steel cable 702. First, move the steel arch 4 to the top of the connecting block 305, align the steel arch 4 with the connecting block 305 vertically, and then move the steel arch 4 downward until the steel arch 4 is clamped in the connecting block 305. At the same time, align the through hole 306 with the circular hole 401, and then align the connecting rod 307 with the through hole 306, align the first limit block 308 with the first limit groove 309, and then move the connecting rod 307 horizontally so that the steel arch 4 is clamped in the connecting block 305. 306 and the circular hole 401, while the first limit block 308 slides in the first limit groove 309 until the four groups of first limit blocks 308 are respectively located in the four groups of first clamping grooves 310, and the connecting rod 307 is rotated to drive the first limit block 308 to slide in the first clamping groove 310, so that the connecting rod 307 is fixed to the connecting block 305, and the connecting block 305 is fixed to the steel arch frame 4 through the connecting column, thereby fixing the steel arch frame 4 to the first connecting frame 301, and moving the steel arch frame 5 to the designated position through the lifting mechanism. After the steel arch frame 4 is fixed to the support mechanism through the connecting assembly, the operation of fixing the steel arch frame 4 to the support mechanism through the connecting rod 307 is simple, and the steel arch frame 4 can be quickly fixed to the support mechanism, thereby improving the efficiency of installing the steel arch frame.

[0028] The hydraulic lifting device 2 is activated, driving the lifting platform 202 and the steel arch 4 to rise until the adjacent steel arch 4 can be fixed to the support mechanism. The steel cable 702 is then separated from the already fixed steel arch 4 and fixed to the next set of steel arch 4. The clamping block 709 is then separated from the first fixing column 703. After the movable sleeve 704 is moved to the designated position, the clamping block 709 is further clamped into the corresponding third clamping slot 708. The steel arch 4 is then fixed to the connecting assembly on the hydraulic rod by the winch 701. The position of the steel arch 4 is then adjusted by the two sets of hydraulic cylinders 317 to move the steel arch 4 to the designated position. The staff then welds the two adjacent sets of steel arch 4 to fix the upper semi-arc-shaped steel arch 4. By adjusting the position and angle of the steel arch by the two sets of hydraulic cylinders 317, the steel arch 4 can be quickly moved to the designated position, thereby improving the efficiency of the installation of the steel arch 4.

[0029] The hydraulic lifting device 2 drives the mobile platform 604 upward until several sets of steel arches 4 are moved to designated locations within the tunnel, where they are fixedly connected to the tunnel. While leaving enough space for the remaining steel arches 4, the second connecting frame 302 is then installed on the movable block 501, with one end of the movable block 501 snapped into the second mating slot 312 of the second connecting frame 302. The second snap-in slot 315 on the support block 314 is then aligned with the fixed block 313. The support block 314 is moved, and the fixed block 313 is snapped into the second snap-in slot 315. The rectangular block 316 is then bolted to the lifting platform 202, and the second connecting frame 302 is secured to the lifting platform 202 via the fixing assembly. Due to the elliptical cross-section of the tunnel, the steel arches 4 in the upper half of the tunnel are secured by the first connecting frame 301, while the steel arches 4 in the lower half of the tunnel are secured by two sets of second connecting frames 302. The second connecting frames 302 can also be quickly disassembled, thereby improving the efficiency of installing the steel arches 4.

[0030] Then, the steel arch frame 4 is fixed to the corresponding two sets of connection components through the winch 701 and the steel cable 702, and then the steel arch frame 4 is moved to the specified position through the two corresponding hydraulic cylinders 317. At this time, the steel arch frame 4 contacts the adjacent steel arch frame 4. At the same time, the steel arch frame 4 is also moved to the specified connection position in the tunnel, and the steel arch frame 4 is fixedly connected to the adjacent steel arch frame 4, and then the steel arch frame 4 is fixed to the tunnel.

[0031] Then rotate the connecting rod 307 to make the first limit block 308 slide in the first slot 310 until the first limit block 308 is aligned with the first limit slot 309, and then move the connecting rod 307 horizontally to separate the connecting rod 307 from the connecting block 305 and the steel arch frame 4, and release the fixation between the steel arch frame 4 and the connecting rod 307; then restore several groups of hydraulic cylinders 317 to their initial state, remove the fixing components, separate the second connecting frame 302 from the lifting platform 202, and finally lower the lifting platform 202 on the fixing frame 201, move the lifting platform 202 to its initial position, and complete the installation of the steel arch frame 4; move the installation frame 1 to the next installation position, and repeat this process to install the steel arch frame 4 in the tunnel.

[0032] The above description is merely an embodiment of the present invention. Common knowledge regarding the specific structure and characteristics of the solution is not described in detail herein. It should be noted that those skilled in the art will be able to make various modifications and improvements without departing from the structure of the present invention. These modifications and improvements should also be considered within the scope of protection of the present invention and will not affect the effectiveness and practicality of the present invention.

Claims

1. A vertical transport tunnel arch installation structure, characterized by: It includes a mounting frame, the mounting frame is provided with a through slot, a hydraulic lifting device is provided in the through slot, and the hydraulic lifting device includes a lifting platform; The lifting platform is provided with a support mechanism for supporting the steel arch frame, the support mechanism includes a first connecting frame and a second connecting frame, the first connecting frame and the two groups of the second connecting frames are both arc-shaped, and the lifting platform is provided with two groups of fixing components for fixing the second connecting frames; The lifting platform is provided with a connecting mechanism for fixing the first connecting frame and the two sets of second connecting frames, and the connecting mechanism includes two sets of movable blocks, which are respectively slidably clamped at both ends of the lifting platform; The two groups of movable blocks are both provided with first matching blocks, and both ends of the first connecting frame are provided with first matching grooves, and the two groups of the first matching grooves are respectively clamped on the two groups of the first matching blocks; The two groups of the second connecting frames are both provided with second matching grooves, and the two groups of the movable blocks are respectively clamped in the second matching grooves.

2. The vertical transport tunnel arch mounting structure according to claim 1, characterized in that: The support mechanism includes several groups of support columns of different heights, one end of each support column is fixedly connected to the lifting platform, and the other end of each support column is in contact with the first connecting frame. The first connecting frame is provided with two groups of fixing rods and several groups of hydraulic cylinders, and the two groups of the second connecting frames are each provided with two groups of hydraulic cylinders; The two groups of fixing rods and the plurality of groups of hydraulic cylinders are all connected to the steel arch frame through connecting components.

3. The vertical transport tunnel arch mounting structure according to claim 2, characterized in that: The connecting mechanism includes a double-headed screw, which is rotatably connected to the lifting platform, and two sets of movable blocks are respectively mounted on both ends of the double-headed screw, and the double-headed screw is respectively fixedly connected to a hand wheel; The lifting platform is provided with two groups of sliding grooves, and the two groups of movable blocks are respectively slidably mounted in the two groups of sliding grooves.

4. The vertical transport tunnel arch mounting structure according to claim 3, characterized in that: The connecting assembly includes a connecting block, which is clamped on the steel arch frame. A connecting rod is installed inside the connecting block and the steel arch frame, and the connecting rod is fixedly connected to one end of the hydraulic cylinder telescopic rod or the fixed rod.

5. The vertical transport tunnel arch mounting structure according to claim 4, characterized in that: The fixing assembly includes two groups of support blocks, both of which are clamped on the fixing block. A rectangular block is provided on the support block, and the rectangular block is fixedly connected to the lifting platform by bolts.

6. The vertical transport tunnel arch mounting structure according to claim 5, characterized in that: The mounting frame includes a plurality of vertically distributed mounting platforms, each of which is provided with a railing; The hydraulic lifting device includes a fixing frame, the fixing frame is fixedly connected to both sides of the through slot, and the lifting platform is slidably mounted on the fixing frame.

7. The vertical transport tunnel arch mounting structure according to claim 6, characterized in that: The mounting frame is provided with two sets of lifting mechanisms for lifting the steel arch frame, and the two sets of lifting mechanisms are respectively located on both sides of the steel arch frame; The hoisting mechanism includes a hoist and a first fixed column, the hoist is provided with a steel cable, the first fixed column is provided with a plurality of groups of second fixed columns, the plurality of groups of second fixed columns are fixed to the mounting frame, the first fixed column is provided with a movable sleeve, the movable sleeve is provided with a fixed ring, and the steel cable is installed in the fixed ring; The first fixing column is provided with a plurality of third card slots, and card blocks are mounted in the third card slots.

8. The vertical transport tunnel arch mounting structure according to claim 7, characterized in that: The mounting frame is provided with a horizontal moving device, which includes a fixed seat, two sets of slide rails are provided on the fixed seat, two sets of slide rails are provided on each of the two sets of slide rails, and the four sets of slide rails are fixed on the moving platform, and a moving motor is provided on the moving platform. A rotatable screw is provided in the fixed seat, and the moving motor is sleeved on the screw. A laser transmitter is provided on the mobile platform.

Citation Information

Patent Citations

  • Tunnel Primary Support Steel Arch Installation Bench and Steel Arch Installation Method

    CN103924989B