Improved rapid steel arch erecting device for tunnel construction

Abstract

The utility model discloses an improved rapid steel arch erecting device for tunnel construction, which is mounted on an excavator and matched with a remote control device for use. The fixed end of the first rotary driving mechanism is connected to the end part of the vertical end of the connecting frame, and the first rotary driving mechanism is used for driving the clamping mechanism to rotate; the clamping mechanism is connected to the rotating end of the rotary driving mechanism; the rotating end of the second rotary driving mechanism is connected to the end part of the horizontal end of the connecting frame; one end of the mounting frame is connected with the fixed end of the second rotary driving mechanism, and the other end of the mounting frame is detachably mounted on the excavator; the winch mechanism is arranged on one side of the connecting frame; the first rotation driving mechanism, the clamping mechanism, the second rotation driving mechanism and the winch mechanism are all in signal connection with the remote control device. The device is novel in design, the position and the direction of the arch frame can be flexibly adjusted in a limited tunnel space, accurate positioning of the arch frame is achieved, the device adapts to different construction environments and conditions, and construction safety is guaranteed.

Description

Technical Field

[0001] This utility model relates to a rapid erection device for steel arch frames, and in particular to an improved rapid erection device for steel arch frames used in tunnel construction. It is mainly used in tunnel construction by connecting and working with an excavator to quickly erect the tunnel steel arch frame, and belongs to the field of tunnel construction engineering technology. Background Technology

[0002] Tunnel construction is generally a crucial component of infrastructure projects. With advancements in engineering technology, the demands for efficiency and safety in tunnel construction are increasingly stringent. The most primitive and traditional tunnel scaffolding work relies primarily on manual labor. Workers must transport, install, and secure the scaffolding inside the tunnel. This process is not only time-consuming and labor-intensive, but also highly prone to accidents due to the confined space and complex environment of the tunnel. Furthermore, construction quality is susceptible to human error, making it difficult to guarantee stability and safety. Manual arch erection requires a large workforce, necessitating strenuous physical labor in a complex environment. Prolonged operation increases worker fatigue, impacting efficiency and quality. Moreover, manual operation requires workers to enter the confined tunnel space, potentially facing significant safety risks. Especially in hot, humid, and poorly ventilated conditions within the tunnel, the working environment becomes extremely dangerous, increasing the risk of accidents.

[0003] Compared to mechanized operations, manual arch erection is less efficient. Because the work relies on the speed and skill of the workers, the construction cycle is longer, potentially leading to delays. Furthermore, variations in worker skill levels and experience during manual operation can result in inconsistent installation quality of the steel arch frames. Manual arch erection is prone to problems such as inaccurate connections, weak welds, and uneven support, affecting the stability and safety of the tunnel. Therefore, corresponding mechanical arch erection devices are now available on the market to assist in the installation of steel arch frames.

[0004] A search revealed that Chinese utility model patent CN203114301U discloses a tunnel construction arch frame installation device for excavators, including an upper connecting frame, a swing cylinder, a slewing mechanism, and a clamping mechanism. However, this prior art only uses a single-stage slewing mechanism, allowing rotation only in one axis, resulting in low efficiency and safety issues. This utility model employs a design with two independent hydraulic systems controlling the vertical and horizontal hydraulic turntables, enabling vertical and horizontal rotation of the tunnel arch erection device. This provides a wider range of motion, allowing the rapid arch erection device to flexibly adjust the position and direction of the arch frame inside the tunnel, adapting to complex working conditions and achieving arch frame positioning. While the aforementioned excavator tunnel construction arch frame installation device can assist in the installation of steel arch frames, it still has technical drawbacks: in actual construction, multiple individual steel arch frames need to be spliced ​​together. The steel arch frames are heavy, requiring numerous workers for auxiliary construction, increasing labor intensity, and posing safety hazards due to the complex working conditions inside the tunnel. In short, it is often very inconvenient.

[0005] Therefore, the key to solving the above problems lies in developing an improved steel arch frame rapid arch erection device for tunnel construction that is more practical and has higher operational reliability. Summary of the Invention

[0006] In view of the defects and deficiencies in the above-mentioned background technology, this utility model has been developed and innovated to provide an improved steel arch frame rapid erection device for tunnel construction that is safe to construct, convenient to operate, and safe and efficient. When using this device to install steel arch frames, construction safety can be guaranteed while minimizing the labor intensity of operators.

[0007] Another objective of this invention is to address the technical problems of high labor costs, low construction efficiency, and the instability of construction quality due to human factors affecting the quality during construction. The aim is to design and provide a time-saving, efficient, and safe steel arch frame installation device.

[0008] To solve the above problems and achieve the above objectives, this utility model provides an improved steel arch frame rapid arch erection device for tunnel construction, which adopts the following technical solution:

[0009] An improved steel arch frame rapid arch erection device for tunnel construction, installed on an excavator and used in conjunction with a remote control device, comprises:

[0010] Connector;

[0011] The first rotary drive mechanism has its fixed end connected to the vertical end of the connecting frame and is used to drive the clamping mechanism to rotate.

[0012] The clamping mechanism is connected to the rotating end of the rotary drive mechanism and is used to clamp the steel arch frame.

[0013] The second rotary drive mechanism has its rotating end connected to the horizontal end of the connecting frame, and is used to drive the connecting frame to rotate.

[0014] The mounting bracket has one end connected to the fixed end of the second rotary drive mechanism and the other end detachably mounted to the excavator.

[0015] The winch mechanism is located on one side of the connecting frame and is used to lift or adjust the steel arch frame.

[0016] The first rotary drive mechanism, the clamping mechanism, the second rotary drive mechanism, and the winch mechanism are all connected to the multi-way control valve, which is connected to the remote control receiver controller, and the remote control receiver controller is connected to the remote control device.

[0017] Preferably, the clamping mechanism includes:

[0018] The support bracket has a lower middle section that is detachably connected to the rotating end of the first rotary drive mechanism via a support bracket flange, and is used to support the upper middle beam of the steel arch frame.

[0019] The hydraulic clamping assembly is symmetrically arranged at both ends of the support bracket and is used to clamp the upper section of the middle beam of the steel arch frame.

[0020] Preferably, the support bracket includes:

[0021] The supporting beam has hinged seats symmetrically provided at both ends on both sides below it;

[0022] Limiting clamp assembly: The limiting clamp assembly is symmetrically connected to the middle of the upper two sides of the supporting beam, and is used to limit and clamp the middle beam of the steel arch frame;

[0023] The cantilever beam is vertically connected to the middle of the side end of the support beam away from the mounting frame, and is used to prevent the outer beam at one end of the disassembled steel arch frame from deforming and falling.

[0024] Among them, the two sets of limit card groups are arranged in an inverted "V" shape.

[0025] Preferably, the hydraulic clamping assembly includes:

[0026] The two grippers are hinged at the middle to the corresponding hinge seats via connectors, and the two grippers are arranged opposite each other.

[0027] The cylinder is connected between the two grippers and is used to drive the two grippers to open and close.

[0028] The cylinder's telescopic end is connected to the inner bottom of one of the grippers, and the cylinder's fixed end is connected to the inner bottom of the other gripper.

[0029] Preferably, it also includes a camera for real-time viewing of the steel arch frame installation environment. The camera is mounted on the flange of the support bracket or on the support beam and is located directly below the cantilever beam. The camera is connected to a remote control device, which is equipped with a display screen.

[0030] The support flange also has multiple weight-reducing holes.

[0031] Preferably, it also includes a laser line projector, which is installed on the outside of the middle limiting clamp group near the end of the cantilever beam, wherein the laser line projector is connected to the remote control device.

[0032] Preferably, the winch mechanism includes:

[0033] Winch mounting base, which can be detachably installed on the mounting holes of the connecting frame;

[0034] A winch, which is rotatably mounted on a winch mounting base;

[0035] The hydraulic winch motor is installed on one side of the winch mounting base, and the rotating shaft of the hydraulic winch motor is connected to one end of the winch.

[0036] A steel wire rope is wrapped around a winch, with one end of the steel wire rope fixedly connected to the winch.

[0037] Winch hook, the winch hook is connected to the non-fixed end of the wire rope;

[0038] Limiting clips are connected to the outside of the winch mounting base and are used to limit the wire rope.

[0039] Preferably, it also includes a pressure gauge and a pressure sensor mounted on the mounting bracket, wherein the pressure gauge is used to monitor the hydraulic system pressure and the pressure sensor is used to detect the oil pressure of the equipment.

[0040] Preferably, it also includes an alarm device for alerting whether the first rotary drive mechanism and the second rotary drive mechanism have exceeded the rotation angle;

[0041] The first rotary drive mechanism controls the clamping mechanism to rotate through a first hydraulic rotary motor, and a first limit switch is also provided on the first rotary drive mechanism;

[0042] The second rotary drive mechanism controls the rotation of the connecting frame through a second hydraulic rotary motor, and a second limit switch is also provided on the second rotary drive mechanism;

[0043] The alarm device is connected to the first limit switch and the second limit switch.

[0044] Preferably, the remote control receiver controller and the multi-way control valve are respectively installed inside the mounting frame. An angle position sensor is also installed inside the mounting frame. The remote control receiver controller is used to receive signal commands from the remote control device.

[0045] The remote control receiver is connected to a multi-way control valve, which is also connected to two cylinders, a first hydraulic rotary motor, a second hydraulic rotary motor, and a hydraulic winch motor.

[0046] The working principle is as follows: Before use, the operator first removes the corresponding bucket from the existing structure of the excavator, and then securely connects the mounting part of the device's mounting frame to the excavator before use.

[0047] Specifically, during installation, the operator first connects the tunnel quick arch erection device to the excavator, then inserts the corresponding hydraulic hoses. Simultaneously, the other corresponding components of this invention are connected, and work can begin. When installing the steel arch frame, the installation is described in detail as follows: after the steel arch frame is erected, it is divided into three sections from top to bottom: upper, middle, and lower.

[0048] During operation, the operator first moves the device to the construction site using an excavator; then, the workers place the steel arch frame, which has been folded into three sections, vertically on the construction site.

[0049] Then, the operator uses an excavator to move the device to the lower part of the middle beam of the upper section of the steel arch frame, so that the clamping mechanism is located as directly below the middle beam of the upper section of the steel arch frame as possible. Subsequently, the operator uses a remote control device to control the winch mechanism to release a section of steel wire rope, and the workers use the steel wire rope to cooperate with the winch hook to connect it to the middle beam of the steel arch frame in the middle folding section of the steel arch frame.

[0050] Next, the operator controls the two sets of hydraulic clamping components of the clamping mechanism to open the corresponding jaws through the remote control device. When the hydraulic clamping components open, the cylinder retracts the telescopic rod, and the distance between the two jaws connected to it gradually shortens. Each jaw rotates around the corresponding hinge seat as the fulcrum. Finally, the upper ends of the two jaws move away from each other, forming an open state.

[0051] Next, the operator controls the excavator's boom to move the support bracket of this device towards the middle beam of the upper section of the steel arch frame until the middle beam of the upper section of the steel arch frame contacts the support beam along the two sets of limit clamps. Then, the operator controls the two sets of hydraulic clamping components of the clamping mechanism to close the corresponding jaws through the remote control device, so that the two sets of jaws clamp the side of the middle beam of the upper section of the steel arch frame. When the hydraulic clamping components close, the cylinder extends the telescopic rod, and then the distance between the two jaws connected to it gradually increases. Each jaw rotates with the corresponding hinge seat as the fulcrum. Finally, the upper ends of the two jaws approach each other until they clamp the side of the middle beam of the upper section of the steel arch frame.

[0052] Next, the operator controls the excavator's wheels to move the device and the clamped steel arch frame to the designated installation position. Then, the operator controls the excavator's boom to bring the top of the upper end of the steel arch frame into contact with the installation position. At this time, the lower section of the steel arch frame is in a rotatable state without the fixing components installed. Several workers first fix the lower section of the steel arch frame. Then, another group of workers uses hoisting or climbing equipment to lift the lower section of the steel arch frame to the hinge position between the upper and lower sections and fix it with the fixing components.

[0053] Then, the operator uses a remote control to control the winch mechanism to start releasing the wire rope until the wire rope is no longer supporting the middle section of the steel arch frame. Afterward, the wire rope and winch hook are removed from the middle section of the steel arch frame, and the winch mechanism is controlled by the remote control to reel in the wire rope. Then, the workers repeat the above fixing process and fix the middle section of the steel arch frame to the upper section of the steel arch frame. At this point, the assembly of the steel arch frame is completed.

[0054] Then, the operator moves the excavator to the designated installation location by controlling the moving wheels and the boom in coordination. The operator can then use the remote control to control the first and second slewing drive mechanisms to rotate appropriately and move the assembled steel arch frame. Once the steel arch frame is in place, the bottom of the assembled steel arch frame can be securely connected to the fixed structure at the designated location, completing the final installation and fixing work of the steel arch frame.

[0055] After the steel arch frame is installed and fixed, the operator can use the remote control to control the two sets of hydraulic clamping components of the clamping mechanism to open the corresponding jaws, so that the four jaws separate from the middle beam at the upper end of the steel arch frame. The operator can then control the excavator boom to move the device downwards to install the next steel arch frame. By repeating the above installation process, the installation and fixing of multiple steel arch frames can be completed quickly.

[0056] Finally, as time goes by, once all the steel arch frames are installed, the operators only need to clean and repair the various components of this utility model and move them to the designated tool storage warehouse for storage, so that they can be reused next time.

[0057] Compared with the prior art, the beneficial effects of this utility model are:

[0058] 1. This utility model saves costs: by using an excavator as the power and control platform for the tunnel rapid arch erection device, the high cost of purchasing and maintaining the entire vehicle and hydraulic arm system is avoided;

[0059] 2. This utility model has high working efficiency: Compared with the traditional manual erection, the automated device used in the tunnel rapid arch erection device greatly saves the erection time, improves construction efficiency, and has high installation accuracy of steel arch frame;

[0060] 3. This utility model has strong safety: it simplifies the construction process, reduces the complexity of the construction site, and the design of the winch mechanism makes the unfolding process of the three-section steel arch frame controllable, thereby reducing safety risks;

[0061] 4. The structure of this utility model is reasonable and highly adaptable: This equipment can be adapted to various models of excavators. The use of quick connectors enables the tunnel quick arch erection device to be quickly connected and disconnected from the excavator, improving the efficiency of equipment use and the flexibility of construction.

[0062] 5. The utility model has excellent working performance: The tunnel rapid arch erection device controls the vertical hydraulic turntable and the horizontal hydraulic turntable through two independent hydraulic systems, realizing the vertical and horizontal rotation of the tunnel rapid arch erection device. This allows the tunnel rapid arch erection device to flexibly adjust the position and direction of the arch frame within the limited tunnel space, achieve precise positioning of the arch frame, adapt to different construction environments and conditions, and ensure construction quality.

[0063] 6. Because this utility model is equipped with a winch mechanism, it can provide buffer support for the steel arch frame during the lowering and installation process. This allows the steel arch frame on one side to be lowered smoothly and slowly, preventing excessive gravity during rapid lowering. This would not only cause damage or deformation to the supporting beam, but also ensure the safe and reliable installation of the steel arch frame and avoid instability that could lead to safety accidents during rapid lowering.

[0064] 7. Because this utility model is equipped with an alarm device, when an emergency occurs during operation, the sound or flashing light of the alarm device can quickly attract people's attention, making them aware of the potential risks and prompting them to take appropriate action.

[0065] 8. This utility model can improve the efficiency and safety of tunnel construction. The device allows for flexible adjustment of the arch frame's position and orientation within limited tunnel space, achieving precise arch frame positioning to adapt to different construction environments and conditions. A winch mechanism is used for arch frame installation. Furthermore, the device is equipped with an alarm device and a pressure gauge to monitor its operation in real time, ensuring construction safety. This utility model is characterized by convenient operation, safety, and high efficiency, providing an effective solution for arch erection work in tunnel construction.

[0066] 9. Because the exterior of this utility model is coated with anti-rust paint and waterproof layer, it can prevent rusting and extend the service life of the entire device. It is environmentally friendly and saves resources. At the same time, the exterior of the device is coated with self-luminous fluorescent material, which can clearly mark the position of the laying device at night or in dark indoor and underground construction environments. It can effectively play a safety reminder role, improve visibility, make it easy for people to identify, and increase safety in construction and life.

[0067] 10. This utility model uses a pre-installed three-section combined folding steel arch frame and then uses this device for installation. With the buffer assistance of the winch mechanism, the splicing process of multiple steel arch frames can be completed in one go, and the work reliability is high.

[0068] 11. This utility model, equipped with an alarm device and a pressure gauge, monitors the device's operation in real time, ensuring construction safety. This significantly improves the safety and reliability of the steel arch frame device for tunnel construction, effectively preventing equipment failures and accidents, reducing potential risks, and protecting the safety of construction personnel and equipment.

[0069] 12. Because this utility model is equipped with a camera, which is connected to the remote control device, it allows operators to conveniently view the installation status of the steel arch frame in real time on the display screen of the remote control device.

[0070] 13. The laser line projector of this utility model can view the height of the arch frame, and can accurately mark the center line or positioning line of the tunnel arch frame, ensuring that the installation of the steel arch frame is consistent with the design drawings, improving construction accuracy, and providing a high-precision horizontal or vertical reference line for measuring the height of the arch frame or accurately positioning the installation of the arch frame. Attached Figure Description

[0071] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0072] Figure 1 This is one of the schematic diagrams showing the usage state of this utility model;

[0073] Figure 2This is the second schematic diagram of the usage state of this utility model;

[0074] Figure 3 This is the third schematic diagram of the usage state of this utility model;

[0075] Figure 4 This is the fourth schematic diagram of the usage state of this utility model;

[0076] Figure 5 This is the fifth schematic diagram of the usage state of this utility model;

[0077] Figure 6 This is the sixth schematic diagram of the usage state of this utility model;

[0078] Figure 7 This is the seventh schematic diagram of the usage state of this utility model;

[0079] Figure 8 This is the eighth schematic diagram of the usage state of this utility model;

[0080] Figure 9 This is one of the overall structural schematic diagrams of this utility model;

[0081] Figure 10 This is the second schematic diagram of the overall structure of this utility model;

[0082] Figure 11 This is the third schematic diagram of the overall structure of this utility model;

[0083] Figure 12 This is the fourth schematic diagram of the overall structure of this utility model;

[0084] Figure 13 This is a front view of the present invention;

[0085] Figure 14 This is a side view of the present invention;

[0086] Figure 15 This is a partial structural schematic diagram of the present invention;

[0087] Figure 16 This is an exploded view of the present invention;

[0088] In the diagram, number 1 represents the connecting frame.

[0089] 2—First rotary drive mechanism; 21—First hydraulic rotary motor; 22—First limit switch;

[0090] 3—Clamping mechanism, 31—Support bracket, 311—Support beam, 312—Hinged seat, 313—Limiting clamp assembly, 314—Cantilever beam, 32—Hydraulic clamping assembly, 321—Gripper, 322—Cylinder, 33—Support bracket flange, 34—Weight reduction hole, 35—Camera, 36—Laser line projector;

[0091] 4—Second rotary drive mechanism; 41—Second hydraulic rotary motor; 42—Second limit switch;

[0092] 5—Mounting bracket, 51—Pressure gauge, 52—Pressure sensor, 53—Tilt position sensor, 54—Remote control receiver controller, 55—Multi-way control valve;

[0093] 6—Windlass mechanism, 61—Windlass mounting base, 62—Windlass, 63—Hydraulic winch motor, 64—Wire rope, 65—Windlass hook, 66—Limit locking device;

[0094] 7—Excavator;

[0095] 8—Remote control device;

[0096] 9—Steel arch frame;

[0097] 10—Alarm device. Detailed Implementation

[0098] The specific embodiments of this utility model will be described in more detail below with reference to specific examples:

[0099] like Figures 1 to 16 The improved steel arch frame rapid arch erection device for tunnel construction shown is installed on excavator 7 and used in conjunction with remote control device 8. It includes:

[0100] Connector 1;

[0101] The first rotary drive mechanism 2 has its fixed end connected to the vertical end of the connecting frame 1, and is used to drive the clamping mechanism 3 to rotate.

[0102] Clamping mechanism 3 is connected to the rotating end of rotary drive mechanism 2 and is used to clamp steel arch frame 9;

[0103] The second rotary drive mechanism 4 has its rotating end connected to the horizontal end of the connecting frame 1, and is used to drive the connecting frame 1 to rotate.

[0104] Mounting bracket 5, one end of which is connected to the fixed end of the second rotary drive mechanism 4, and the other end is detachably mounted to the excavator 7;

[0105] The winch mechanism 6 is located on one side of the connecting frame 1 and is used to lift or adjust the steel arch frame 9.

[0106] Among them, the first rotary drive mechanism 2, the clamping mechanism 3, the second rotary drive mechanism 4, and the winch mechanism 6 are all connected to the multi-way control valve 55, the multi-way control valve 55 is connected to the remote control receiver controller 54, and the remote control receiver controller 54 is connected to the remote control device 8.

[0107] Furthermore, such as Figure 9 and Figure 11 As shown, the clamping mechanism 3 includes:

[0108] The support bracket 31 is detachably connected at its lower middle part to the rotating end of the first rotary drive mechanism 2 via the support bracket flange 33, and is used to support the upper middle beam of the steel arch frame 9.

[0109] The hydraulic clamping assembly 32 is symmetrically arranged at both ends of the support bracket 31 and is used to clamp the upper middle beam of the steel arch frame 9.

[0110] Specifically, such as Figure 16 As shown. The support bracket 31 includes:

[0111] The supporting beam 311 has hinge seats 312 symmetrically provided at both ends of its two sides.

[0112] Limiting clamp assembly 313 is symmetrically connected to the middle of the upper two sides of the supporting beam 311, and is used to limit and clamp the middle beam of the steel arch frame 9.

[0113] The cantilever beam 314 is vertically connected to the middle of the side end of the support beam 311, which is away from the end of the mounting frame 5, to prevent the outer beam at one end of the disassembled steel arch frame 9 from deforming and falling.

[0114] Among them, the two sets of limit card groups 313 are arranged in an inverted "V" shape.

[0115] In this utility model, the steel arch frame is a foldable steel arch frame.

[0116] More specifically, such as Figure 16 As shown, the hydraulic clamping assembly 32 includes:

[0117] Two grippers 321, the middle of each gripper 321 is hinged to the corresponding hinge seat 312 by a connector, and the two grippers 321 are arranged opposite to each other.

[0118] Cylinder 322 is connected between two grippers 321 and is used to drive the two grippers 321 to open and close.

[0119] The telescopic end of cylinder 322 is connected to the inner bottom of one of the grippers 321, and the fixed end of cylinder 322 is connected to the inner bottom of the other gripper 321.

[0120] In this invention, the cylinders 322 of the two hydraulic clamping assemblies 32 are connected by hydraulic pipes, oil pipes, or wires.

[0121] Meanwhile, in this utility model, cylinder 322 is a hydraulic cylinder, a hydraulic oil cylinder, or an electric cylinder.

[0122] Preferably, cylinder 322 is a hydraulic cylinder, which is connected via an oil pressure pipe.

[0123] More specifically, such as Figure 16 As shown, it also includes a camera 35 for real-time viewing of the installation environment of the steel arch frame 9. The camera 35 is installed on the support flange 33 or the support beam 311 and is located directly below the cantilever beam 314. The camera 35 is connected to the remote control device 8, which is equipped with a display screen.

[0124] Among them, multiple weight-reducing holes 34 are also provided through the flange 33 of the support bracket.

[0125] In this utility model, both ends of the connecting frame 1 are fixedly installed with connecting frame flanges, and multiple connecting frame flange weight reduction holes are opened through the two connecting frame flanges.

[0126] Furthermore, such as Figure 16 As shown, it also includes a laser line projector 36, which is installed on the outside of the middle limiting clamp group 313 near the end of the cantilever beam 314. The laser line projector 36 is connected to the remote control device 8 via signal.

[0127] In this utility model, the laser line projector 36 is used to view the height of the arch frame, enabling precise marking of the center line or positioning line of the tunnel arch frame, ensuring that the installation of the steel arch frame is consistent with the design drawings, improving construction accuracy, and providing a high-precision horizontal or vertical reference line for measuring the height of the arch frame or for precise positioning of the arch frame installation.

[0128] During construction, a point is marked on the top of the tunnel before the arch frame is installed. When the line of the laser line projector 36 aligns with the pre-marked point, it indicates that the height of the arch frame is appropriate. This allows the camera 35 to capture this image when the light inside the tunnel is insufficient and the naked eye cannot see clearly. It can also help observe the condition of the rock strata at the top of the tunnel and the condition of some arch frames.

[0129] When in use, the laser line projector 36 projects clear laser lines, which help ensure consistent height at all points during arch frame installation, avoiding unnecessary deviations caused by human measurement errors. It can quickly project a long horizontal or vertical line, allowing construction workers to rapidly check the arch frame height. When used in conjunction with a camera 35, the laser line projector 36 enables real-time monitoring of the construction process, capturing every detail and ensuring construction quality. The camera 35 can transmit on-site images to a remote control console, allowing project managers to monitor progress and quality at any time. In complex or inaccessible construction environments, the laser line projector can be operated remotely, avoiding direct contact with hazardous areas and ensuring safety.

[0130] Furthermore, such as Figure 5 As shown, the winch mechanism 6 includes:

[0131] The winch mounting base 61 is detachably mounted on the mounting hole of the connecting frame 1;

[0132] Winch 62 is rotatably mounted on winch mounting base 61;

[0133] A hydraulic winch motor 63 is mounted on one side of the winch mounting base 61, and the rotating shaft of the hydraulic winch motor 63 is connected to one end of the winch.

[0134] A steel wire rope 64 is wrapped around the winch 62, and one end of the steel wire rope 64 is fixedly connected to the winch.

[0135] Winch hook 65, the winch hook 65 is connected to the non-fixed end of the wire rope 64;

[0136] Limiting clip 66 is connected to the outside of winch mounting base 61 and is used to limit the wire rope 64.

[0137] In this utility model, the winch mechanism 6 is detachably and adjustablely installed on one side of the connecting frame 1 using multiple bolt assemblies. This allows the operator to easily disassemble, maintain, and replace any component that is damaged due to repeated use or prolonged operation.

[0138] The connecting frame 1 has an overall "L" shape structure, and a mounting hole for installing the winch mechanism 6 is provided on one side of the connecting frame 1.

[0139] Furthermore, such as Figure 5As shown, it also includes a pressure gauge 51 and a pressure sensor 52 installed on the mounting bracket 5, wherein the pressure gauge 51 is used to monitor the hydraulic system pressure and the pressure sensor 52 is used to detect the oil pressure of the equipment.

[0140] Furthermore, such as Figure 5 and Figure 6 as well as Figure 9 , Figure 14 As shown, it also includes an alarm device 10 for alerting whether the first rotary drive mechanism 2 and the second rotary drive mechanism 4 have exceeded the rotation angle;

[0141] The first rotary drive mechanism 2 controls the clamping mechanism 3 to rotate through the first hydraulic rotary motor 21. The first rotary drive mechanism 2 is also equipped with a first limit switch 22.

[0142] The second rotary drive mechanism 4 controls the connecting frame 1 to rotate through the second hydraulic rotary motor 41. A second limit switch 42 is also provided on the second rotary drive mechanism 4.

[0143] The alarm device 10 is connected to the first limit switch 22 and the second limit switch 42.

[0144] In this invention, when the rotation angle of the first rotary drive mechanism 2 and the second rotary drive mechanism 4 exceeds 45°, the first limit switch 22 and the second limit switch 42 sense and transmit the signal to the alarm device 10, the alarm device 10 flashes its light and sounds an alarm.

[0145] Furthermore, such as Figure 15 As shown, the remote control receiver controller 54 and the multi-way control valve 55 are respectively installed inside the mounting bracket 5. An angle position sensor 53 is also installed inside the mounting bracket 5. The remote control receiver controller 54 is used to receive signal commands from the remote control device 8.

[0146] The remote control receiver controller 54 is connected to the multi-way control valve 55, which is also connected to two cylinders 322, the first hydraulic rotary motor 21, the second hydraulic rotary motor 41, and the hydraulic winch motor 63.

[0147] In this invention, the tilt position sensor 53 is a horizontal position sensor used to address the issue of sloped tunnels. This horizontal sensor displays whether the current tilt state of the arch frame matches the designed slope of the tunnel, facilitating installation and allowing operators to fully monitor the arch frame's posture at all times. Its function is to measure the tilt angle of the steel arch frame and send signals to the remote control device 8 in real time, facilitating the detection and correction of any potential improper tilting, ensuring the stability and safety of the steel arch frame 9 during use. The tilt position sensor also helps operators better understand and control the device, ensuring its normal operation. The remote control device 8 is also connected to the pressure gauge 51, pressure sensor 52, tilt position sensor 53, multi-way control valve 55, and alarm device 10.

[0148] In this invention, there is at least one remote control device 8; if there are two, one main remote control device 8 is installed in the operator's cab of the excavator 7, and the other auxiliary remote control device 8 is set outside for the convenience of the operator outside. The two remote control devices 8 are used to assist each other.

[0149] In summary, a more specific embodiment of this utility model is as follows:

[0150] Before use, the operator should first remove the corresponding bucket from the existing structure of the excavator 15, and then securely connect the mounting part of the mounting frame 5 of this device to the excavator 15 before use.

[0151] Specifically, during installation, the operator first connects the tunnel quick arch erection device to the excavator 15, then inserts the corresponding hydraulic oil pipes, and simultaneously connects the other corresponding components of this utility model, and then work can begin. When installing the steel arch frame 9, the installation is described in detail as follows: after the steel arch frame 9 is vertical, it is divided into three sections from top to bottom: upper, middle, and lower.

[0152] During operation, the operator first moves the device to the construction site using the excavator 15; then, the workers place the steel arch frame 9, which has been folded into three sections, vertically on the construction site.

[0153] Then, the operator uses excavator 15 to move the device to the lower part of the middle beam of the upper section of the steel arch frame 9, so that the clamping mechanism 3 is located as close as possible to the lower part of the middle beam of the upper section of the steel arch frame 9. Subsequently, the operator uses remote control device 8 to control winch mechanism 6 to release a section of steel wire rope 64, and allows workers to connect the steel wire rope 64 to the middle beam of the steel arch frame 9 in the middle folding section by cooperating with winch hook 65.

[0154] Next, the operator controls the two sets of hydraulic clamping components 32 of the clamping mechanism 3 to open the corresponding jaws 321 respectively through the remote control device 8; when the hydraulic clamping components 32 are opened, the cylinder 322 retracts the telescopic rod, and the distance between the two jaws 321 connected to it gradually shortens. Each jaw 321 rotates with the corresponding hinge seat 312 as the fulcrum. Finally, the upper ends of the two jaws 321 move away from each other, forming an open state.

[0155] Then, the operator controls the excavator 15's boom to move the support bracket 31 of this device towards the middle beam of the upper section of the steel arch frame 9 until the middle beam of the upper section of the steel arch frame 9 comes into contact with the support beam 311 along the two sets of limit clamps 313. Subsequently, the operator controls the two sets of hydraulic clamping components 32 of the clamping mechanism 3 to close the corresponding jaws 321 respectively through the remote control device 8, so that the two sets of jaws 321 clamp the side of the middle beam of the upper section of the steel arch frame 9. When the hydraulic clamping components 32 are closed respectively, the cylinder 322 extends the telescopic rod, and then the distance between the two jaws 321 connected to it gradually increases. Each jaw 321 rotates with the corresponding hinge seat 312 as the fulcrum. Finally, the upper ends of the two jaws 321 approach each other until they clamp the side of the middle beam of the upper section of the steel arch frame 9.

[0156] Next, the operator controls the moving wheels of the excavator 15 to move the device and the clamped steel arch 9 to the designated installation position. Then, the operator controls the cantilever of the excavator 15 to bring the top of the upper end of the steel arch 9 into contact with the inner wall of the tunnel at the installation position. At this time, the lower section of the steel arch 9 is in a rotatable state without the installation of the fixing components. Several workers first fix the lower section of the steel arch 9. Then, another group of workers use hoisting equipment or climbing equipment to lift to the hinge position between the lower and upper sections of the steel arch 9 and fix it with the fixing components.

[0157] Then, the operator uses the remote control device 8 to control the winch mechanism 6 to start releasing the wire rope 64 until the wire rope 64 no longer bears the middle section of the steel arch frame 9. Afterwards, the wire rope 64 and the winch hook 65 are removed from the middle section of the steel arch frame 9, and the winch mechanism 6 is controlled by the remote control device 8 to reel in the wire rope 64. Then, the operator repeats the above fixing process and fixes the middle section of the steel arch frame 9 to the upper section of the steel arch frame 9. At this point, the assembly of the steel arch frame 9 is completed.

[0158] Then, the operator moves the excavator 15 to the designated installation location by controlling the moving wheels and the boom in coordination. The operator can then use the remote control device 8 to control the first slewing drive mechanism 2 and the second slewing drive mechanism 4 to rotate appropriately and move the assembled steel arch frame 9. After the steel arch frame 9 is in the installation position, the bottom of the assembled steel arch frame 9 can be firmly connected to the fixed structure at the designated position, completing the final installation and fixing work of the steel arch frame 9.

[0159] After the steel arch frame 9 is installed and fixed, the operator can use the remote control device 8 to control the two sets of hydraulic clamping components 32 of the clamping mechanism 3 to open the corresponding jaws 321, so that the four jaws 321 are separated from the middle beam at the upper end of the steel arch frame 9. The operator can then control the excavator 15 boom to move the device downwards, and then install the next steel arch frame 9. By repeating the above installation process, the installation and fixing of multiple steel arch frames 9 can be completed quickly.

[0160] Finally, as time goes by, once all the steel arch frames 9 are installed, the operators only need to clean and repair the various components of this utility model and move them to the designated tool storage warehouse for storage, so that they can be reused next time.

[0161] Throughout the entire process described above, the presence of the winch mechanism 6 provides a buffer support during the lowering and installation of the steel arch frame. This allows the steel arch frame on one side to be lowered smoothly and slowly, preventing excessive gravity during rapid lowering. This would not only cause damage or deformation to the supporting beam, but also ensure the safe and reliable installation of the steel arch frame, avoiding instability and potential safety accidents during rapid lowering.

[0162] In this invention, the presence of an alarm device ensures that in the event of an emergency during operation, the sound or flashing light of the alarm can quickly attract attention, alerting people to potential risks and prompting them to take appropriate action. The combined use of the alarm device and pressure gauge allows for real-time monitoring of the device's operation, ensuring construction safety. This significantly enhances the safety and reliability of the steel arch frame device used in tunnel construction, effectively preventing equipment malfunctions and accidents, reducing potential risks, and protecting the safety of construction personnel and equipment.

[0163] In this utility model, since a camera 35 is provided and the camera 35 is connected to the remote control device 8, the operator can conveniently view the installation status of the steel arch frame 9 in real time on the display screen of the remote control device 8.

[0164] In summary, the advantages of this utility model in its specific embodiments are as follows:

[0165] 1. This utility model has a simple structure, novel and reasonable design, and saves costs: by using an excavator as the power and control platform for the arch erector, the high cost of purchasing and maintaining the entire vehicle and hydraulic arm system is avoided.

[0166] 2. This utility model improves efficiency: The quick-connect design makes the installation and disassembly of the arch erector quick and easy, greatly improving construction efficiency;

[0167] 3. This utility model enhances safety: It simplifies the construction process, reduces the complexity of the construction site, thereby reducing safety risks and minimizing the labor intensity of operators while achieving the goal of safe construction.

[0168] 4. Improved adaptability: This equipment can be adapted to various models of excavators, and has excellent versatility and flexibility; Precise control: Through the precise control of the hydraulic system, the arch erector can achieve precise positioning of the arch frame, ensuring construction quality.

[0169] 5. Flexibility of this utility model: The design of this device allows for multi-angle adjustments within a limited tunnel space, adapting to different construction environments and conditions;

[0170] 6. This utility model is easy to operate: the use of quick couplings allows the arch erector to be quickly connected and disconnected from the excavator, improving the efficiency of equipment use and the flexibility of construction.

[0171] 7. This utility model, combined with hydraulic clamps, enables rapid and accurate installation of the arch frame. This design not only improves construction efficiency but also significantly enhances construction safety and efficiency by reducing manual operations.

[0172] 8. This utility model adopts a design with two independent hydraulic systems to control the vertical hydraulic turntable and the horizontal hydraulic turntable, realizing the vertical and horizontal rotation of the tunnel rapid arch erection device. The range of motion is larger, which allows the tunnel rapid arch erection device to flexibly adjust the position and direction of the arch frame inside the tunnel, adapt to complex working conditions, and realize the positioning of the arch frame.

[0173] Finally, it should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. An improved steel arch rapid erection device for tunnel construction, which is installed on an excavator (7) and used in conjunction with a remote control device (8), characterized in that, It comprises: a connecting frame (1); a first rotary drive mechanism (2) connected at a vertical end of the connecting frame (1) for driving a clamping mechanism (3) to rotate; the clamping mechanism (3) connected at a rotating end of the first rotary drive mechanism (2) for clamping a steel arch frame (9); a second rotary drive mechanism (4) connected at a horizontal end of the connecting frame (1) for driving the connecting frame (1) to rotate; a mounting frame (5) connected at one end with a fixed end of the second rotary drive mechanism (4) and at the other end with an excavator (7) in a detachable manner; a winch mechanism (6) arranged at one side of the connecting frame (1) for lifting or adjusting the steel arch frame (9); wherein the first rotary drive mechanism (2), the clamping mechanism (3), the second rotary drive mechanism (4) and the winch mechanism (6) are connected with a multi-way control valve (55), the multi-way control valve (55) is connected with a remote control receiving controller (54), and the remote control receiving controller (54) is connected with a remote control device (8) in a signal manner.

2. The improved steel arch rapid erection device for tunnel construction of claim 1, characterized in that, The clamping mechanism (3) comprises: a supporting bracket (31) having a lower end connected with the rotating end of the first rotary drive mechanism (2) in a detachable manner through a supporting bracket flange (33) for supporting an upper middle beam of the steel arch frame (9); a hydraulic clamping assembly (32) symmetrically arranged at both ends of the supporting bracket (31) for clamping the upper middle beam of the steel arch frame (9).

3. The improved steel arch rapid erection device for tunnel construction of claim 2, characterized in that, The supporting bracket (31) comprises: a supporting beam (311) having two symmetrical hinged seats (312) arranged at both ends of both sides of the lower part of the supporting beam (311); a limiting clamping component group (313) symmetrically connected at both sides of the upper part of the supporting beam (311) for limiting and clamping the middle beam of the steel arch frame (9); a cantilever beam (314) vertically connected at the middle part of the side end of the supporting beam (311) away from the mounting frame (5) for preventing the deformation and falling of the outer beam of the unfolded steel arch frame (9); wherein the two limiting clamping component groups (313) are arranged in an inverted "8" shape.

4. The improved steel arch rapid erection device for tunnel construction of claim 2, characterized in that, The hydraulic clamping assembly (32) comprises: two clamping jaws (321) having their middle parts hingedly connected to the corresponding hinged seats (312) through connecting components, and the two clamping jaws (321) are arranged in an opposite manner; a cylinder (322) connected between the two clamping jaws (321) for driving the two clamping jaws (321) to open and close; wherein the extension end of the cylinder (322) is connected with the bottom inner side of one of the clamping jaws (321), and the fixed end of the cylinder (322) is connected with the bottom inner side of the other clamping jaw (321).

5. The improved steel arch rapid erection device for tunnel construction according to claim 1 or 2, characterized in that, Also include a camera (35) for real-time viewing of the steel arch (9) installation environment, the camera (35) is installed on the support bracket flange (33) or support beam (311), and is located directly below the cantilever beam (314), wherein the camera (35) is signal connected with the remote control device (8), and the remote control device (8) is provided with a display screen for displaying the screen; Wherein, a plurality of lightening holes (34) are also provided through the support bracket flange (33).

6. The improved steel arch rapid erection device for tunnel construction of claim 1, wherein Also include a laser line projector (36), the laser line projector (36) is installed outside the middle part of the limit card piece group (313) near the end of the cantilever beam (314), wherein the laser line projector (36) is signal connected with the remote control device (8).

7. The improved steel arch rapid erection device for tunnel construction of claim 1, wherein The winch mechanism (6) comprises: The winch mounting seat (61) is detachably mounted on the mounting hole of the connecting frame (1); The winch (62) is rotatably mounted on the winch mounting seat (61); The hydraulic winch motor (63) is installed on one side of the winch mounting seat (61), and the rotating shaft of the hydraulic winch motor (63) is connected with one end of the winch; The steel wire rope (64) is arranged around the winch (62), and one end of the steel wire rope (64) is fixedly connected with the winch; The winch hook (65) is connected with the non-fixed end of the steel wire rope (64); The limit card piece (66) is connected outside the winch mounting seat (61) for limiting the steel wire rope (64).

8. The improved steel arch rapid erection device for tunnel construction of claim 1, wherein Also include a pressure gauge (51) and a pressure sensor (52) arranged on the mounting frame (5), wherein the pressure gauge (51) is used for monitoring the hydraulic system pressure, and the pressure sensor (52) is used for detecting the equipment oil pressure.

9. The improved steel arch rapid erection device for tunnel construction of claim 1, wherein Also include an alarm device (10) for warning whether the first rotary drive mechanism (2) and the second rotary drive mechanism (4) exceed the rotation angle; The first rotary drive mechanism (2) controls the rotary work of the clamping mechanism (3) through the first hydraulic rotary motor (21), and a first travel switch (22) is further arranged on the first rotary drive mechanism (2); The second rotary drive mechanism (4) controls the rotary work of the connecting frame (1) through the second hydraulic rotary motor (41), and a second travel switch (42) is further arranged on the second rotary drive mechanism (4); Wherein, the alarm device (10) is connected with the first travel switch (22) and the second travel switch (42).

10. The improved steel arch rapid erection device for tunnel construction of claim 1, wherein The remote control receiving controller (54) and the multi-way control valve (55) are respectively installed inside the mounting frame (5), and an inclination position sensor (53) is further installed inside the mounting frame (5), and the remote control receiving controller (54) is used for receiving the signal instruction of the remote control device (8); The remote control receiving controller (54) is connected with the multi-way control valve (55), and the multi-way control valve (55) is further connected with two cylinders (322), the first hydraulic rotary motor (21) and the second hydraulic rotary motor (41), and the hydraulic winch motor (63).

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