Railway tunnel construction protection system

Abstract

The invention provides a railway tunnel construction protection system, which relates to the technical field of tunnel construction, and comprises a vehicle platform, walking wheels arranged below the vehicle platform, a lifting assembly arranged above the vehicle platform, a stabilizing assembly arranged on the side surface of the vehicle platform, an auxiliary moving assembly arranged at the top of the vehicle platform, and a hydraulic fixing assembly arranged in front of the vehicle platform; the system further comprises a balance monitoring assembly, and the balance monitoring assembly monitors and adjusts the overall balance of the car frame in real time. The problems that during steel arch splicing, manual lifting is needed, multi-person cooperation is needed during steel arch splicing, the danger is high, and during steel arch splicing and folding, manual lifting cooperation difficulty is large, and time is consumed are solved.

Description

Technical Field

[0001] The invention belongs to the field of tunnel construction, and in particular relates to a railway tunnel construction protection system. Background Art

[0002] Tunnel steel arch support is a commonly used support measure in tunnel construction. Tunnel steel arch support is a support measure that uses steel sections to be processed into the required shape and is assembled to reinforce underground projects.

[0003] During the process of tunnel steel arch support, it is usually necessary to assemble the steel arch frame inside the tunnel. The existing technology is to manually lift the steel arch frame to the workbench. After lifting it to the workbench, the steel arch frame is manually lifted to the tunnel wall. This requires the collaboration of multiple people, and puts a heavy burden on the operators. It is highly dangerous, and during the assembly process, coordination is difficult and the closing takes a long time. Summary of the invention

[0004] The present invention provides a railway tunnel construction protection system to solve at least one technical problem raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention discloses a railway tunnel construction protection system, a platform, a traveling wheel is arranged under the platform, a lifting component is arranged above the platform, a stabilizing component is arranged on the side of the platform, an auxiliary moving component is arranged on the top of the platform, and a hydraulic fixing component is arranged in front of the platform;

[0006] It also includes a balance monitoring component, which monitors and adjusts the overall balance of the vehicle in real time.

[0007] Preferably, the lifting assembly includes a lifting motor, two groups of lifting motors are installed in the platform, and worm gears are installed at the output ends of the two groups of lifting motors. The two worm gears are respectively meshed with the worm wheels on the left and right sides. A lifting screw is provided on one side of the lifting motor, and both ends of the lifting screw are rotatably connected to the rotating seat, and the rotating seat is installed in the platform by bolts. The worm wheels are installed on the lifting screws, and the lifting screws are threadedly connected with lifting blocks. The lifting blocks slide relatively in the lifting grooves, and the lifting grooves are provided on the side of the platform. A rotating structure is installed at one end of the lifting block, and the other end of the lifting block is slidably connected to the sliding rod. Both ends of the sliding rod are installed in the platform, and the sliding rod corresponds to the lifting screws one by one.

[0008] Preferably, the rotating structure includes a lifting bracket, both sides of the lifting bracket are connected with a rotating shaft, the other ends of the rotating shaft are rotatably connected to the shaft frame, the shaft frame is installed on a cross plate, the two ends of the cross plate are respectively connected to two lifting blocks, the cross plate is symmetrically hinged with hydraulic supports, the working ends of the hydraulic supports are hinged with the lifting bracket, and a hydraulic push rod is installed on the lifting bracket.

[0009] Preferably, the stabilization component includes a main hydraulic pump, which is installed on the platform. The platform is symmetrically provided with two-way hydraulic cylinders at the front and rear ends. The two-way hydraulic cylinders are installed on the platform through flange seats. Both ends of the two-way hydraulic cylinders are connected to rigid square tubes, which are slidably connected in transverse grooves. Vertical hydraulic cylinders are installed on both ends of the rigid square tubes. Ground feet are installed on the output ends of the vertical hydraulic cylinders. The main hydraulic pump is respectively connected to the two-way hydraulic cylinder and the vertical hydraulic cylinder through hydraulic pipes.

[0010] Preferably, the auxiliary moving component includes a slide rail, the two slide rails are symmetrically fixed on the platform, a push card is provided in the center of the two slide rails, the push card is rotatably connected to the pushing block, a rotating elastic member is provided between the push card and the pushing block, the pushing block slides relatively in the pushing groove, the pushing groove is provided on the top of the platform, the pushing block is threadedly connected to two pushing screws, the two pushing screws are both rotatably connected to the platform, the two pushing screws are symmetrically arranged, and gears are installed on the two pushing screws, and the gears are meshed with the gears at the output end of the drive motor.

[0011] Preferably, the hydraulic fixing assembly includes a turntable, which is rotatably connected to the front end of the platform, and hydraulic lifting rods are symmetrically installed on the turntable. The working sections of the hydraulic lifting rods are all installed with electromagnetic sockets. The end face of the turntable is connected to a driving mechanism, and a top pressure structure is provided between the turntable and the platform.

[0012] Preferably, the driving mechanism includes a main shaft, which is rotatably connected to the pillow block, a spur bevel gear is connected to the main shaft with a sliding key, a reverse bevel gear is rotatably connected to the pillow block, a telescopic coupling card is fixedly connected to the spur bevel gear, the telescopic coupling card is used to mesh with the rotating shaft corresponding to the reverse bevel gear, the spur bevel gear and the reverse bevel gear are both used to mesh with the driving bevel gear, the driving bevel gear is installed at the output end of the vertical motor, the vertical motor is installed in the platform, a push sleeve is provided on the outer sleeve of the telescopic coupling card, the push sleeve and the telescopic coupling card rotate relative to each other, the push sleeve is connected to the working end of the hydraulic push rod, and the hydraulic push rod is installed on the platform.

[0013] Preferably, the jacking structure includes a plurality of hydraulically assisted jacks, which are mounted on the platform, and a jack plate is provided at the working end of the hydraulically assisted jack, to which an electric rotating plate is rotatably connected.

[0014] Preferably, the balance monitoring component includes a control module, a data processing module, a detection module and an execution module, and the detection module includes:

[0015] Gravity sensor: used to detect the overall gravity of the platform, which is set on the stabilizing component;

[0016] Two sets of pressure sensors: one is used to detect the load-bearing capacity of each hydraulic lifting rod, which is set on the electromagnetic card seat;

[0017] A plurality of pressure sensors 2: used to detect the bearing capacity of each hydraulic auxiliary push rod, which are arranged on the electric rotating plate;

[0018] Angle sensor: used to detect the rotation angle of the main shaft, which is set on the main shaft;

[0019] Displacement sensor 1: used to detect the telescopic distance of the rigid square tube, which is set on the bidirectional hydraulic cylinder.

[0020] Displacement sensor 2: used to detect the telescopic distance of the hydraulic lifting rod, which is arranged on the hydraulic lifting rod;

[0021] The detection module is electrically connected to the data processing module, the control module is electrically connected to the data processing module and the execution module, and the control module controls the execution unit to work based on the data results of the data processing module.

[0022] Preferably, the control module controls the execution module based on the data result of the data processing module, including the following steps:

[0023] Step 1: Calculate the dynamic balance coefficient of the vehicle platform based on the gravity sensor, pressure sensor 1, pressure sensor 2, angle sensor, displacement sensor 1 and displacement sensor 2:

[0024]

[0025] Among them: B is the dynamic balance coefficient of the whole platform, x is the detection value of displacement sensor 1, m is the mass of the platform, g is the gravity acceleration, G is the detection value of the gravity sensor, F b1 、F b2 and F bi are the detection values ​​of the pressure sensor 1 on the 1st, 2nd and i-th hydraulic auxiliary push rods, r is the effective radius of the hydraulic auxiliary push rod, α1, α2 and α i are the fixed angle values ​​of the 1st, 2nd and ith hydraulic auxiliary push rods, respectively, F a1 and F a2 is the detection value of the second pressure sensor on the hydraulic lifting rod, S is the contact area between the steel arch and the electromagnetic holder, l is the detection value of the second displacement sensor, B is the electromagnetic force per unit area of ​​the electromagnetic holder, μ is the friction coefficient, and θ is the detection value of the angle sensor;

[0026] Step 2: The data processing module calculates the deviation coefficient of the platform based on the dynamic balance coefficient:

[0027]

[0028] Where: A is the offset coefficient of the platform;

[0029] Step 3: The data processing module compares the offset coefficient table with the offset coefficient of the platform to determine the lifting and adjusting height values ​​of the vertical hydraulic cylinders on the left and right sides of the platform. The control module controls the execution module to control the vertical hydraulic cylinders to lift and lower according to the lifting and adjusting height values. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0031] Figure 1 The structure of the present invention is schematically shown Figure 1 ;

[0032] Figure 2 The structure of the present invention is schematically shown Figure 2 ;

[0033] Figure 3 The structure of the present invention is schematically shown Figure 3 .

[0034] In the figure: 1. platform; 11. walking wheel; 2. lifting assembly; 21. lifting motor; 22. worm; 23. worm wheel; 24. lifting screw; 25. rotating seat; 26. lifting block; 27. lifting slot; 28. slide bar; 3. rotating structure; 31. lifting bracket; 32. rotating shaft; 33. shaft frame; 34. cross plate; 35. hydraulic support; 36. hydraulic push rod; 4. stabilizing assembly; 41. main hydraulic pump; 42. two-way hydraulic cylinder; 43. flange seat; 44. rigid square tube; 45. cross slot; 46. vertical hydraulic cylinder; 47. foot; 5. auxiliary Moving assembly; 51, slide rail; 52, push card; 53, push block; 54, push slot; 55, push screw; 56, gear; 57, drive motor; 6, hydraulic fixing assembly; 61, turntable; 62, hydraulic lifting rod; 63, electromagnetic clamp; 7, drive mechanism; 71, spindle; 72, pillow block; 73, forward bevel gear; 74, reverse bevel gear; 75, telescopic coupling clamp; 76, drive bevel gear; 77, vertical motor; 78, push sleeve; 79, hydraulic push rod; 8, top pressure structure; 81, hydraulic auxiliary push rod; 82, top plate; 83, electric turn plate. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0036] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0037] The present invention provides the following embodiments

[0038] Example 1

[0039] The embodiment of the present invention provides a railway tunnel construction protection system, such as Figure 1-3 As shown, it comprises: a platform 1, a travel wheel 11 is provided at the bottom of the platform 1, a lifting component 2 is provided at the top of the platform 1, a stabilizing component 4 is provided at the side of the platform 1, an auxiliary moving component 5 is provided at the top of the platform 1, and a hydraulic fixing component 6 is provided in front of the platform 1;

[0040] It also includes a balance monitoring component, which monitors and adjusts the overall balance of the vehicle platform 1 in real time.

[0041] The working principle and beneficial effects of the above technical solution are as follows: when installing the steel arch frame, the platform 1 unfolds the stabilizing component 4 to ensure the stability of the platform 1 during the installation of the steel arch frame, and places the left steel arch frame on the lifting component 2. The single-section steel arch frame is lifted to the top of the platform 1 by the lifting component 2. Then the lifting component 2 places the left steel arch frame on the auxiliary moving component 5. The auxiliary moving component 5 assists the operator in moving the steel arch frame to the hydraulic fixing component 6. After the hydraulic fixing component 6 lifts the left steel arch frame and rotates it to the left side, the left steel arch frame is lifted to fit the tunnel wall and temporarily hydraulically fixed. , then repeatedly lift the right side steel arch frame, repeat the above operation to the hydraulic fixing assembly 6, lift it again and rotate it to the right side, again fit the right side steel arch frame to the tunnel wall and perform temporary hydraulic fixation, lift the middle section steel arch frame and transport it to the hydraulic fixing assembly 6, lift it and temporarily hydraulic fix it, after the entire section of the steel arch frame is temporarily fixed, the operator bolts it together, then the assembly on the platform 1 is reset and moves forward, the balance monitoring assembly monitors the balance of the platform 1 in real time when assembling the steel arch frame, and adjusts the platform 1 in real time according to the balance of the platform 1;

[0042] The present invention utilizes a stabilizing component 4 to ensure the stability of the platform 1 during the installation of the steel arch frame. This design can ensure safety during the installation of the steel arch frame and prevent the platform 1 from tipping over. The design of the lifting component 2 realizes mechanized lifting, avoiding the possibility of danger during manual lifting of the steel arch frame. Combined with the design of the auxiliary moving component 5, the steel arch frame can be transported to the operating surface more quickly, thereby improving the lifting and handling efficiency of the steel arch frame and reducing labor requirements. The design of the hydraulic fixing component 6 reduces the difficulty of splicing and closing the steel arch frame, avoiding the need to repeatedly calibrate the steel arch frame when manually lifting and splicing it. During the lifting of the steel arch frame, the operator does not need to be under the steel arch frame, reducing the risk of the steel arch frame collapsing and injuring people. At the same time, the design of the balance monitoring component ensures the stability of the platform 1 when the steel arch frame is being assembled, avoiding the tipping over of the platform 1 due to the load of the steel arch frame.

[0043] Example 2

[0044] On the basis of Example 1, the lifting component 2 includes a lifting motor 21, two groups of lifting motors 21 are installed in the platform 1, and the output ends of the two groups of lifting motors 21 are installed with worms 22. The two worms 22 are respectively meshed with the worm wheels 23 on the left and right sides. A lifting screw 24 is provided on one side of the lifting motor 21. Both ends of the lifting screw 24 are rotatably connected to the rotating seat 25. The rotating seat 25 is installed in the platform 1 by bolts. The worm wheels 23 are all installed on the lifting screw 24. The lifting screw 24 is threadedly connected with a lifting block 26. The lifting block 26 slides relatively in the lifting groove 27. The lifting groove 27 is provided on the side of the platform 1. A rotating structure 3 is installed at one end of the lifting block 26, and the other end of the lifting block 26 is slidably connected to the slide rod 28. Both ends of the slide rod 28 are installed in the platform 1, and the slide rod 28 corresponds one to one with the lifting screw 24.

[0045] The rotating structure 3 includes a lifting bracket 31, and the lifting bracket 31 is connected to a rotating shaft 32 on both sides. The other end of the rotating shaft 32 is rotatably connected to the shaft frame 33, and the shaft frame 33 is installed on a cross plate 34. The two ends of the cross plate 34 are respectively connected to the two lifting blocks 26. The cross plate 34 is symmetrically hinged with hydraulic struts 35. The working ends of the hydraulic struts 35 are hinged to the lifting bracket 31, and a hydraulic push rod 36 is installed on the lifting bracket 31.

[0046] The working principle and beneficial effects of the above technical solution are as follows: when the steel arch frame is lifted, the lifting motor 21 starts to drive the worm 22 to rotate, the worm 22 and the worm wheel 23 are meshed with each other, and the lifting screw 24 is driven to rotate. The rotation of the lifting screw 24 causes the lifting block 26 to rise or fall along the lifting groove 27 and the slide bar 28, thereby causing the lifting bracket 31 to rise or fall. When the steel arch frame rises to the top of the platform 1 along with the lifting bracket 31, the hydraulic support 35 extends to push the lifting bracket 31 to rotate 90° around the shaft frame 33. After the lifting bracket 31 has completed its rotation, the hydraulic push rod 36 pushes the steel arch frame to move forward to the auxiliary moving component 5, and then the hydraulic support 35 contracts to reset the lifting bracket 31, and then the lifting bracket 31 descends.

[0047] The present invention utilizes the worm 22 and the worm wheel 23 to drive the lifting screw 24 to rotate. This design can effectively bear a large load and ensure the stability of the steel arch frame during the lifting process. The design of the lifting block 26 and the lifting screw 24 not only realizes the lifting of the steel arch frame, but also utilizes the self-locking characteristics of the thread to further enhance the load capacity of the lifting assembly. At the same time, the design of the slide rod 28 can ensure the stability of the lifting block 26 during the lifting process and prevent the lifting block 26 and the lifting screw 24 from being locked due to high load.

[0048] Example 3

[0049] On the basis of Example 1, the stabilizing component 4 includes a main hydraulic pump 41, which is installed on the platform 1. The platform 1 is symmetrically provided with two-way hydraulic cylinders 42 at the front and rear ends. The two-way hydraulic cylinders 42 are installed on the platform 1 through flange seats 43. Both ends of the two-way hydraulic cylinders 42 are connected to rigid square tubes 44, which are slidably connected in the transverse grooves 45. Both ends of the rigid square tubes 44 are installed with vertical hydraulic cylinders 46, and the output ends of the vertical hydraulic cylinders 46 are installed with feet 47. The main hydraulic pump 41 is connected to the two-way hydraulic cylinder 42 and the vertical hydraulic cylinder 46 through hydraulic pipes.

[0050] The beneficial effects of the above technical solution are as follows: when assembling the steel arch frame, the main hydraulic pump 41 delivers pressure to extend the bidirectional hydraulic cylinder 42, and the bidirectional hydraulic cylinder 42 pushes the rigid square tube 44 to slide and unfold along the transverse groove 45, and then the main hydraulic pump 41 controls the vertical hydraulic cylinder 46 to act, and after the vertical hydraulic cylinder 46 extends, it pushes the foot 47 to support the ground, and the rigid square tube 44 is used to lift the vehicle platform 1 as a whole;

[0051] The present invention utilizes a vertical hydraulic cylinder 46 and a foot 47 to lift the platform 1. This design can ensure the stability of the platform 1 during the assembly of the steel arch frame, avoid reciprocating movement of the wheeled structure during the assembly process, and the rigid square tube 44 slides in the transverse groove 45, which facilitates the contraction of the stabilizing component 4 and reduces the space occupied by the platform 1.

[0052] Example 4

[0053] On the basis of Example 1, the auxiliary moving component 5 includes a slide rail 51, and the two slide rails 51 are symmetrically fixed on the platform 1. A push card 52 is provided in the center of the two slide rails 51, and the push card 52 is rotatably connected to the pushing block 53. A rotating elastic member is provided between the push card 52 and the pushing block 53. The pushing block 53 slides relatively in the pushing groove 54, and the pushing groove 54 is provided at the top of the platform 1. The pushing block 53 is threadedly connected to two pushing screws 55, and the two pushing screws 55 are both rotatably connected to the platform 1. The two pushing screws 55 are symmetrically arranged, and gears 56 are installed on the two pushing screws 55. The gear 56 is meshed with the gear at the output end of the driving motor 57.

[0054] The beneficial effects of the above technical solution are as follows: after the steel arch frame is placed on the auxiliary moving assembly 5, the steel arch frame is manually pulled forward, thereby pushing the push card 52 to rotate. After the steel arch frame exceeds the push card 52, the push card 52 is reset under the action of the rotating elastic member, and then the driving motor 57 drives the gear 56 to rotate, and the gear 56 then drives the pushing screw 55 to rotate, and the pushing screw 55 rotates to make the pushing block 53 move forward along the pushing groove 54, and the pushing block 53 moves forward so that the push card 52 pushes the steel arch frame along the slide rail 51 to the end of the slide rail 51, and then the operator pushes the steel arch frame onto the hydraulic fixing assembly 6, and then the pushing block 53 is reset;

[0055] The design of the pushing screw 55 and the pushing block 53 of the present invention can assist the operator in pushing the steel arch frame forward on the platform. This design can reduce the burden of the operator in moving the steel arch frame, improve the moving efficiency of the steel arch frame, and utilize a semi-mechanized design to significantly reduce the demand for labor.

[0056] Example 5

[0057] On the basis of Example 1, the hydraulic fixing assembly 6 includes a turntable 61, which is rotatably connected to the front end of the platform 1, and hydraulic lifting rods 62 are symmetrically installed on the turntable 61. The working sections of the hydraulic lifting rods 62 are all installed with electromagnetic clamps 63. The end face of the turntable 61 is connected to a driving mechanism 7, and a top pressure structure 8 is provided between the turntable 61 and the platform 1.

[0058] The driving mechanism 7 includes a main shaft 71, which is rotatably connected to a pillow block 72. A spur bevel gear 73 is connected to the main shaft 71 with a sliding key. A reverse bevel gear 74 is rotatably connected to the pillow block 72. A telescopic coupling card 75 is fixedly connected to the spur bevel gear 73. The telescopic coupling card 75 is used to mesh with the rotating shaft corresponding to the reverse bevel gear 74. The spur bevel gear 73 and the reverse bevel gear 74 are both used to mesh with the driving bevel gear 76. The driving bevel gear 76 is installed at the output end of the vertical motor 77. The vertical motor 77 is installed in the platform 1. A push sleeve 78 is provided on the outer sleeve of the telescopic coupling card 75. The push sleeve 78 and the telescopic coupling card 75 rotate relative to each other. The push sleeve 78 is connected to the working end of the hydraulic push rod 79, and the hydraulic push rod 79 is installed on the platform 1.

[0059] The jacking structure 8 includes a plurality of hydraulically assisted jacks 81 , which are mounted on the platform 1 . A jack plate 82 is disposed at the working end of the hydraulically assisted jacks 81 , and an electric rotating plate 83 is rotatably connected to the jack plate 82 .

[0060] The beneficial effects of the above technical solution are as follows: when the steel arch frame is placed on the hydraulic fixing assembly 6, the steel arch frame is first placed on the electromagnetic clamping seat 63, the electromagnetic clamping seat 63 is energized to adsorb the steel arch frame, the hydraulic lifting rod 62 extends to make the steel arch frame close to the tunnel wall, and then the vertical motor 77 rotates to drive the driving bevel gear 76 to rotate, and the driving bevel gear 76 engages and rotates with the positive bevel gear 73 and the reverse bevel gear 74. When the left steel arch frame needs to be installed, the hydraulic lifting rod 62 needs to turn left, the hydraulic push rod 79 contracts and then pulls the push sleeve 78 and the telescopic coupling clamp 7 5 slides along the main shaft 71, so that the positive bevel gear 73 and the driving bevel gear 76 mesh with each other to transmit torque. At this time, the telescopic coupling clamp 75 is in a shortened state and does not mesh with the rotating shaft corresponding to the reverse bevel gear 74. The driving bevel gear 76 drives the main shaft 71 to rotate clockwise with the positive bevel gear 73 until the left steel arch frame reaches the specified position. The hydraulic auxiliary push rod 81 at the corresponding position of the left steel arch frame extends, and the electric rotating plate 83 rotates to be parallel to the top plate 82. The electric rotating plate 83 presses the left steel arch frame to temporarily fix it, and then the electromagnetic clamp The seat 63 is powered off and the hydraulic lifting rod 62 is retracted and reset. When the right steel arch frame needs to be installed, the hydraulic lifting rod 62 turns right, the hydraulic push rod 79 contracts to disengage the positive bevel gear 73 from the driving bevel gear 76, and at the same time, the telescopic coupling card 75 extends to engage with the rotating shaft corresponding to the reverse bevel gear 74. The telescopic coupling card 75 cooperates with the reverse bevel gear 74 to transmit torque, and the telescopic coupling card 75 drives the main shaft 71 to rotate counterclockwise with the reverse bevel gear 74 until the right steel arch frame reaches the specified position. The hydraulic auxiliary lifting device at the corresponding position of the right steel arch frame is The rod 81 is extended, and the electric rotating plate 83 is rotated to be parallel to the top plate 82. The electric rotating plate 83 presses the right steel arch frame to temporarily fix it. Then the electromagnetic clamping seat 63 is powered off and the hydraulic lifting rod 62 is retracted and reset. When the central steel arch frame needs to be installed, the hydraulic lifting rod 62 does not need to be rotated. Then the hydraulic auxiliary push rod 81 at the corresponding position of the central steel arch frame is extended, and the electric rotating plate 83 is rotated to be parallel to the top plate 82. The electric rotating plate 83 presses the central steel arch frame to temporarily fix it. Then the staff splices and fixes the steel arch frame as a whole.

[0061] The present invention utilizes a hydraulic lifting rod 62 to lift and rotate the steel arch frame. This design replaces manual operation with a mechanical structure, which can effectively avoid the danger of the steel arch frame during assembly and reduce the coordination complexity of manual assembly of the steel arch frame. In addition, with the design of the hydraulic auxiliary push rod 81, the steel arch frame can be quickly assembled. At the same time, the design of the forward bevel gear 73, the reverse bevel gear 74 and the telescopic coupling clamp 75 can realize arbitrary adjustment of the forward and reverse rotation of the main shaft 71, thereby improving the load capacity of the main shaft 71 when carrying the steel arch frame and avoiding sliding of the main shaft 71.

[0062] Example 6

[0063] Based on Example 1, the balance monitoring component includes a control module, a data processing module, a detection module and an execution module, and the detection module includes:

[0064] Gravity sensor: used to detect the overall gravity of the platform 1, which is arranged on the stabilizing component 4;

[0065] Two sets of pressure sensors 1: used to detect the bearing force on each hydraulic lifting rod 62, which is arranged on the electromagnetic card seat 63;

[0066] A plurality of pressure sensors 2: used to detect the bearing capacity of each hydraulic auxiliary push rod 81, which are arranged on the electric rotating plate 83;

[0067] Angle sensor: used to detect the rotation angle of the main shaft 71, which is arranged on the main shaft 71;

[0068] Displacement sensor 1: used to detect the telescopic distance of the rigid square tube 44, which is set on the bidirectional hydraulic cylinder 42.

[0069] Displacement sensor 2: used to detect the telescopic distance of the hydraulic lifting rod 62, which is arranged on the hydraulic lifting rod 62;

[0070] The detection module is electrically connected to the data processing module, the control module is electrically connected to the data processing module and the execution module, and the control module controls the execution unit to work based on the data results of the data processing module.

[0071] The control module controls the execution module based on the data result of the data processing module, including the following steps:

[0072] Step 1: Based on the gravity sensor, pressure sensor 1, pressure sensor 2, angle sensor, displacement sensor 1 and displacement sensor 2, calculate the overall dynamic balance coefficient of the platform (1):

[0073]

[0074] Among them: B is the dynamic balance coefficient of the whole platform 1, x is the detection value of displacement sensor 1, m is the mass of the platform 1, g is the gravity acceleration, G is the detection value of the gravity sensor, F b1 、F b2 and F bi are the detection values ​​of the pressure sensor 1 on the 1st, 2nd and i-th hydraulic auxiliary push rods 81, r is the effective radius of the hydraulic auxiliary push rod 81, α1, α2 and α i are the fixed angle values ​​of the first, second and i hydraulic auxiliary push rods 81, respectively, a1 and F a2is the detection value of the second pressure sensor on the hydraulic lifting rod 62, S is the contact area between the steel arch and the electromagnetic holder 63, l is the detection value of the second displacement sensor, B is the electromagnetic force per unit area of ​​the electromagnetic holder 63, μ is the friction coefficient, and θ is the detection value of the angle sensor;

[0075] Step 2: The data processing module calculates the offset coefficient of the vehicle platform 1 based on the dynamic balance coefficient:

[0076]

[0077] Where: A is the offset coefficient of the platform;

[0078] Step 3: The data processing module compares the offset coefficient table according to the offset coefficient of the platform 1 to determine the lifting and adjusting height values ​​of the vertical hydraulic cylinders 46 on the left and right sides of the platform 1. The control module controls the execution module to control the vertical hydraulic cylinders 46 to install the lifting and adjusting height values ​​for lifting.

[0079] The beneficial effects of the above technical solution are as follows: when the platform 1 is assembled with the steel arch frame, the lifting, movement and support of the steel arch frame may cause the load on the front, back, left and right sides of the platform 1 to be unbalanced, causing the center of gravity of the platform 1 to shift. When the platform 1 adopts a fixed posture, the center of gravity that changes back and forth exceeds the carrying capacity of the platform 1 at a certain moment, causing the platform 1 to overturn. Therefore, the load condition of the platform 1 is monitored in real time, and the balance of the platform 1 is calculated based on the monitored value. The posture of the platform 1 is dynamically adjusted based on the calculated balance of the platform 1, so that the center of gravity of the platform 1 is kept within a controllable range.

[0080] The present invention utilizes a control module, a data processing module, a detection module and an early warning module to perform real-time monitoring on the vehicle platform 1, calculates an offset coefficient according to a dynamic balance coefficient of the vehicle platform 1, and then adjusts the posture of the vehicle platform 1 to cope with the influence of the load on the vehicle platform 1, thereby ensuring the safety of operators when assembling the steel arch frame.

[0081] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A railway tunnel construction protection system, characterized in that: include: A platform (1), wherein a travel wheel (11) is provided below the platform (1), a lifting assembly (2) is provided above the platform (1), a stabilizing assembly (4) is provided on the side of the platform (1), an auxiliary moving assembly (5) is provided on the top of the platform (1), and a hydraulic fixing assembly (6) is provided directly in front of the platform (1); It also includes a balance monitoring component, which monitors and adjusts the overall balance of the vehicle platform (1) in real time.

2. A railway tunnel construction protection system according to claim 1, characterized in that: The lifting assembly (2) comprises a lifting motor (21). Two sets of lifting motors (21) are installed in the platform (1). The output ends of the two sets of lifting motors (21) are both installed with worms (22). The two worms (22) are respectively meshed with worm wheels (23) on the left and right sides. A lifting screw (24) is provided on one side of the lifting motor (21). Both ends of the lifting screw (24) are rotatably connected to a rotating seat (25). The rotating seat (25) is installed in the platform (1) by bolts. The worm wheel (23) is meshed with the worm wheels (23) on the left and right sides. 23) are all installed on the lifting screw (24), and the lifting screw (24) is threadedly connected with a lifting block (26). The lifting block (26) slides relatively in a lifting groove (27), and the lifting groove (27) is arranged on the side of the vehicle platform (1). One end of the lifting block (26) is installed with a rotating structure (3), and the other end of the lifting block (26) is slidably connected to a sliding rod (28). Both ends of the sliding rod (28) are installed in the vehicle platform (1), and the sliding rod (28) corresponds to the lifting screw (24) one by one.

3. A railway tunnel construction protection system according to claim 2, characterized in that: The rotating structure (3) includes a lifting bracket (31), both sides of the lifting bracket (31) are connected with a rotating shaft (32), the other end of the rotating shaft (32) is rotatably connected to an axis frame (33), the axis frame (33) is installed on a transverse plate (34), the two ends of the transverse plate (34) are respectively connected to two lifting blocks (26), the transverse plate (34) is symmetrically hinged with a hydraulic support (35), the working end of the hydraulic support (35) is hinged to the lifting bracket (31), and a hydraulic push rod (36) is installed on the lifting bracket (31).

4. A railway tunnel construction protection system according to claim 1, characterized in that: The stabilizing component (4) comprises a main hydraulic pump (41), which is mounted on a platform (1). The platform (1) is symmetrically provided with bidirectional hydraulic cylinders (42) at the front and rear ends. The bidirectional hydraulic cylinders (42) are mounted on the platform (1) via flange seats (43). Both ends of the bidirectional hydraulic cylinders (42) are connected to rigid square tubes (44), which are slidably connected in transverse grooves (45). Both ends of the rigid square tubes (44) are mounted with vertical hydraulic cylinders (46), and the output end of the vertical hydraulic cylinders (46) is mounted with feet (47). The main hydraulic pump (41) is respectively connected to the bidirectional hydraulic cylinders (42) and the vertical hydraulic cylinders (46) via hydraulic pipes.

5. A railway tunnel construction protection system according to claim 1, characterized in that: The auxiliary moving assembly (5) comprises a slide rail (51), wherein the two slide rails (51) are symmetrically fixed on the platform (1), a push card (52) is arranged at the center of the two slide rails (51), the push card (52) is rotatably connected to a push block (53), a rotating elastic member is arranged between the push card (52) and the push block (53), the push block (53) slides relatively in a push groove (54), the push groove (54) is arranged on the top of the platform (1), the push block (53) is threadedly connected to two push screw rods (55), the two push screw rods (55) are both rotatably connected to the platform (1), the two push screw rods (55) are symmetrically arranged, and gears (56) are installed on the two push screw rods (55), and the gears (56) are meshed with the gears at the output end of the driving motor (57).

6. A railway tunnel construction protection system according to claim 1, characterized in that: The hydraulic fixing assembly (6) comprises a turntable (61) which is rotatably connected to the front end of the platform (1). Hydraulic lifting rods (62) are symmetrically mounted on the turntable (61). The working sections of the hydraulic lifting rods (62) are all mounted with electromagnetic clamping seats (63). The end surface of the turntable (61) is connected to a driving mechanism (7). A top pressing structure (8) is provided between the turntable (61) and the platform (1).

7. A railway tunnel construction protection system according to claim 6, characterized in that: The driving mechanism (7) comprises a main shaft (71), the main shaft (71) is rotatably connected to a pillow block (72), a spur bevel gear (73) is connected to the main shaft (71) by a sliding key, a reverse bevel gear (74) is rotatably connected to the pillow block (72), a telescopic coupling clamp (75) is fixedly connected to the spur bevel gear (73), the telescopic coupling clamp (75) is used for meshing with the rotating shaft corresponding to the reverse bevel gear (74), the spur bevel gear (73) and the reverse bevel gear (74) are used for meshing with a driving bevel gear (76), the driving bevel gear (76) is installed at the output end of a vertical motor (77), the vertical motor (77) is installed in the vehicle platform (1), a push sleeve (78) is provided on the outer sleeve of the telescopic coupling clamp (75), the push sleeve (78) and the telescopic coupling clamp (75) rotate relative to each other, the push sleeve (78) is connected to the working end of a hydraulic push rod (79), and the hydraulic push rod (79) is installed on the vehicle platform (1).

8. A railway tunnel construction protection system according to claim 6, characterized in that: The jacking structure (8) comprises a plurality of hydraulic auxiliary jacks (81), wherein the hydraulic auxiliary jacks (81) are mounted on the vehicle platform (1), and a jack plate (82) is provided at the working end of the hydraulic auxiliary jacks (81), and an electric rotating plate (83) is rotatably connected to the jack plate (82).

9. A railway tunnel construction protection system according to claim 1, characterized in that: The balance monitoring component includes a control module, a data processing module, a detection module and an execution module. The detection module includes: Gravity sensor: used to detect the overall gravity of the vehicle platform (1), and arranged on the stabilizing component (4); Two sets of pressure sensors 1: used to detect the bearing capacity on each hydraulic lifting rod (62), which are arranged on the electromagnetic clamping seat (63); A plurality of pressure sensors 2: used to detect the bearing capacity of each hydraulic auxiliary push rod (81), which are arranged on the electric rotating plate (83); Angle sensor: used for detecting the rotation angle of the main shaft (71), which is arranged on the main shaft (71); Displacement sensor 1: used to detect the telescopic distance of the rigid square tube (44), which is arranged on the bidirectional hydraulic cylinder (42). Displacement sensor 2: used to detect the telescopic distance of the hydraulic lifting rod (62), and disposed on the hydraulic lifting rod (62); The detection module is electrically connected to the data processing module, the control module is electrically connected to the data processing module and the execution module, and the control module controls the execution unit to work based on the data results of the data processing module.

10. A railway tunnel construction protection system according to claim 9, characterized in that: The control module controls the execution module based on the data result of the data processing module, including the following steps: Step 1: Based on the gravity sensor, pressure sensor 1, pressure sensor 2, angle sensor, displacement sensor 1 and displacement sensor 2, calculate the overall dynamic balance coefficient of the platform (1): Where: B is the dynamic balance coefficient of the vehicle platform (1) as a whole, x is the detection value of the displacement sensor 1, m is the mass of the vehicle platform (1), g is the gravitational acceleration, G is the detection value of the gravity sensor, F b1 、F b2 and F bi are the detection values ​​of the pressure sensor 1 on the 1st, 2nd and i-th hydraulic auxiliary push rods (81), r is the effective radius of the hydraulic auxiliary push rod (81), α1, α2 and α i are the fixed angle values ​​of the first, second and i hydraulic auxiliary push rods (81), respectively, a1 and F a2 is the detection value of the second pressure sensor on the hydraulic lifting rod (62), S is the contact area between the steel arch frame and the electromagnetic clamping seat (63), l is the detection value of the second displacement sensor, B is the electromagnetic force per unit area of ​​the electromagnetic clamping seat (63), μ is the friction coefficient, and θ is the detection value of the angle sensor; Step 2: The data processing module calculates the offset coefficient of the platform (1) based on the dynamic balance coefficient: Where: A is the offset coefficient of the platform; Step 3: The data processing module compares the offset coefficient table according to the offset coefficient of the platform (1) to determine the lifting and lowering adjustment height values ​​of the vertical hydraulic cylinders (46) on the left and right sides of the platform (1), and the control module controls the execution module to control the vertical hydraulic cylinders (46) to lift and lower according to the lifting and lowering adjustment height values.

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