Integrated equipment for small-section tunnel construction

Abstract

The invention relates to integrated equipment for small-section tunnel construction. The integrated equipment comprises a rack, and a crawler system is arranged at the bottom of the rack; a guniting mechanical arm, an arch frame mounting mechanical arm and a drilling mechanical arm are arranged at the top of the rack, and the arch frame mounting mechanical arms and the drilling mechanical arms are arranged on the two transverse sides of the rack; a longitudinally-arranged conveying belt is arranged below the machine frame, and an excavator arm is arranged at the longitudinal end of the machine frame and corresponds to one end of the conveying belt. Various mechanical devices used in tunnel excavation and supporting procedures are integrated, mechanical construction of all the tunnel excavation and supporting procedures can be completed, the main functions of drilling, auxiliary charging, slag scraping and loading, danger and defect clearing, arch frame installation, anchor rod construction, concrete spraying and the like are achieved, the types and the number of construction machines are greatly reduced, and the construction efficiency is improved. And the number of operators in the tunnel is reduced, the operation time for replacing equipment and assembling and disassembling a power supply, a water pipe and an air pipe is saved, the construction efficiency is improved, and the advantages in small-section tunnel construction are particularly obvious.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction equipment, and in particular to an integrated equipment for small-section tunnel construction. Background Art

[0002] Tunnel construction has now largely been mechanized, significantly accelerating construction progress, reducing reliance on manual labor, and mitigating operational safety risks. However, most existing mechanical equipment used in tunnel construction is large and has relatively simple functions. This results in a large number of different types of equipment used in a single tunnel project, resulting in high costs. Furthermore, in the construction of small-section medium- and long-length tunnels, the confined space within the tunnel often only allows for the passage of one piece of equipment. When the tunnel is long, equipment conversion and entry and exit require significant time, severely restricting improvements in construction efficiency. This problem is particularly prominent in small-section medium- and long-length tunnels.

[0003] Therefore, it is necessary to propose new measures to overcome the above-mentioned defects. Summary of the Invention

[0004] The purpose of the present invention is to provide an integrated equipment for small-section tunnel construction to solve the problems of current tunnel engineering construction equipment being large in size and having relatively single functions.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] An integrated equipment for small-section tunnel construction, comprising a frame with a crawler system provided at the bottom of the frame;

[0007] The top of the frame is provided with a shotcrete mechanical arm, an arch mounting mechanical arm and a drilling mechanical arm, and both lateral sides of the frame are provided with an arch mounting mechanical arm and a drilling mechanical arm;

[0008] A longitudinally arranged conveyor belt is provided below the frame, and an excavator arm is provided at one longitudinal end of the frame and corresponds to one end of the conveyor belt.

[0009] Furthermore, a shield shell is provided on the top of the frame, and longitudinally arranged arch frame moving trolley tracks are provided on both lateral sides of the shield shell surface, and the arch frame moving trolley with a gripper moves longitudinally forward and backward along the arch frame moving trolley tracks;

[0010] The horizontal sides of the frame are also provided with longitudinally arranged arch frame moving trolley tracks, and the arch frame moving trolley with a gripper moves longitudinally forward and backward along the arch frame moving trolley tracks.

[0011] Furthermore, a foldable explosion-proof door is provided at one longitudinal end of the frame. When the explosion-proof door is folded, it is located below the shield shell. When the explosion-proof door is unfolded, it covers the end of the frame.

[0012] Furthermore, the frame includes a left rectangular frame, a right rectangular frame and a top rectangular frame, and a sliding mechanism is provided between the bottom of the top rectangular frame and the top of the right rectangular frame;

[0013] The left rectangular frame and the top rectangular frame form an immovable frame, and the right rectangular frame is a movable frame. The top of the right rectangular frame moves horizontally left and right along the bottom of the top rectangular frame using the sliding mechanism.

[0014] Furthermore, the longitudinal ends of the frame are door frames, and transversely arranged telescopic beams are provided in the door frames. The transverse extension and contraction of the telescopic beams drives the movable frame to move laterally left and right.

[0015] Furthermore, longitudinally arranged slide grooves are provided on both lateral sides of the interior of the frame, and the lateral ends of the telescopic beam are located in the slide grooves and move forward and backward along the longitudinal direction of the slide grooves.

[0016] Furthermore, a telescopic leg is provided at the bottom of the door frame, and a transverse track is provided on the ground below the telescopic leg on the lateral side, and the leg roller provided at the bottom of the telescopic leg moves laterally left and right along the transverse track.

[0017] Furthermore, a slider is provided on the telescopic beam, and the slider moves left and right along the telescopic beam;

[0018] A vertical suspension rod is provided on the sliding block, and a crossbeam is provided at a corresponding position of the conveyor belt and is connected to the suspension rod.

[0019] Furthermore, a slider is provided on the telescopic beam, and the slider moves left and right along the telescopic beam;

[0020] The sliding block is provided with a base, the inner end of the excavator arm is connected to the base, and the outer end of the excavator arm is provided with a slag scraping head.

[0021] Furthermore, a crushing head is provided on the upper portion of the outer end of the excavator arm.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention provides an integrated equipment for small-section tunnel construction, which integrates various mechanical equipment used in tunnel excavation and support processes into an integrated equipment, which can complete the mechanized construction of all tunnel excavation and support processes. It has the main functions of drilling, auxiliary charging, slag loading, clearing hazards and debts, arch installation, anchor construction, shotcrete spraying, etc., which greatly reduces the types and number of construction machinery, reduces the number of workers in the tunnel, saves time for replacing equipment, installing and removing power supplies, water pipes and air ducts, improves construction efficiency, and reduces interference in the tunnel. The advantages in small-section tunnel construction are particularly obvious. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying any creative work, they can also obtain drawings of other embodiments based on these drawings.

[0025] Figure 1 This is a front-end structural diagram of the integrated equipment provided by an embodiment of the present invention.

[0026] Figure 2 This is a structural diagram of the inner side of the integrated equipment explosion-proof door provided by an embodiment of the present invention.

[0027] Figure 3 This is a structural diagram from the rear end side perspective of the integrated equipment provided by an embodiment of the present invention.

[0028] Figure 4 This is a structural diagram from the other side of the rear end of the integrated equipment provided by an embodiment of the present invention.

[0029] Figure 5 This is a structural diagram of an integrated equipment explosion-proof door provided by an embodiment of the present invention.

[0030] Figure 6 This is a schematic diagram of the layout of the integrated equipment robotic arm provided by an embodiment of the present invention.

[0031] Figure 7 It is a schematic diagram of the integrated equipment provided by an embodiment of the present invention during arch installation construction.

[0032] Figure 8 It is a schematic diagram of the integrated equipment provided by an embodiment of the present invention during drilling construction.

[0033] Figure 9 It is a schematic diagram of the integrated equipment provided by an embodiment of the present invention in terms of blasting protection.

[0034] Figure 10It is a schematic diagram of the integrated equipment provided by an embodiment of the present invention during loading and conveying construction.

[0035] The symbols in the figure are:

[0036] 1-shield, 2-arch frame moving trolley, 3-arch frame moving trolley track, 4-shotcrete hopper, 5-track system, 6-drive belt trumpet, 7-immovable frame, 8-sliding mechanism, 9-movable frame, 10-transverse track, 11-telescopic beam, 12-telescopic support legs, 13-chute, 14-slider, 15-conveyor belt, 16-boom, 17-base, 18-excavator arm, 19-slag scraper head, 20-crushing head, 21-explosion-proof door, 22-shotcrete mechanical arm, 23-arch frame installation mechanical arm, 24-drilling mechanical arm, 25-gantry, 26-boom. DETAILED DESCRIPTION

[0037] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0038] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "longitudinal", "lateral", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0039] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "disposed" should be understood in a broad sense. For example, they may refer to fixed connection or disposition, detachable connection or disposition, or integral connection or disposition. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0040] It should also be noted that although the steps are described in order, in some cases they may be performed in an order different from that shown, and this should not be construed as limiting the order of the steps.

[0041] In a specific embodiment, the tunnel line direction is defined as the longitudinal direction, the direction perpendicular to it is defined as the transverse direction, and Figure 1 The left side of the Figure 1 The right side of is defined as the back.

[0042] Most of the existing tunnel construction equipment only has a single construction operation function, such as a rock drilling trolley can only perform rock drilling operations, an arch installation machine can only perform arch installation operations, a slag scraper can only perform slag scraping operations, a charging trolley can only perform charging operations, and so on. Therefore, a large number and variety of equipment are required for the construction of a single tunnel. Not only is the equipment cost high, but also various types of equipment need to be frequently dispatched when switching operations during the construction process, which is inefficient and requires a large dispatch space. To this end, the present invention provides an integrated equipment for tunnel construction, which can be used in the fields of highway, railway, and water conservancy engineering technology. A single piece of equipment is used to perform multiple operations, which reduces equipment costs while eliminating the need for frequent equipment dispatch. The overall size is relatively small, and it is particularly suitable for small-section tunnel construction.

[0043] Specifically, the integrated equipment of the present invention is integrated and carried on a frame, and the frame as a whole is a rectangular parallelepiped frame structure, such as Figure 2 The frame includes a left rectangular frame, a right rectangular frame and a top rectangular frame, forming two door frames 25 on the front and rear sides in the longitudinal direction.

[0044] The vertical height of the rack can be adjusted, specifically by providing a telescopic support leg 12 at the bottom of the door frame 25. Figure 2 The four telescopic legs 12 are equipped with a power assembly that drives them to extend and retract vertically, thereby increasing or decreasing the vertical height of the frame. Furthermore, the legs 12 can be extended and retracted asynchronously, allowing for leveling of the frame. These legs enable the equipment to adapt to various construction methods, such as when constructing on a step using the micro-step method, by vertically raising the frame to facilitate access.

[0045] The lateral width of the frame can be adjusted to widen or narrow. This is achieved by providing a sliding mechanism 8 between the bottom of the top rectangular frame and the top of the right rectangular frame. The left rectangular frame and the top rectangular frame form an immovable frame 7, while the right rectangular frame is a movable frame 9. The top of the right rectangular frame is moved laterally left and right along the bottom of the top rectangular frame using the sliding mechanism 8, thereby widening or narrowing the lateral width of the frame. The sliding mechanism 8 mainly includes a matching chute and a slide rail, which are located on the top rectangular frame and the right rectangular frame, respectively. During sliding, the slide rail slides within the chute under the drive of a power jack, enabling the right rectangular frame to slide. Accordingly, a transversely arranged telescopic beam 11 is provided within the gantry 25. The telescopic beam 11 is equipped with a power assembly to drive the lateral expansion and contraction of the telescopic beam 11, thereby driving the movable frame 9 to move laterally left and right. At the same time, a transverse track 10 is provided on the ground below the telescopic legs 12 on one lateral side, and the leg rollers provided at the bottom of the telescopic legs 12 move laterally left and right along the transverse track 10 to cooperate with the lateral left and right movement of the rectangular frame on the right. During normal construction, the frame is reduced to a minimum in the horizontal direction, and sufficient space is reserved between the frame and the arch wall to facilitate equipment operation. When the equipment is repaired and maintained, other construction vehicles need to pass through the middle. Driven by its internal power equipment, the middle telescopic beam 11 pushes the movable frame 9 on one side outward, and the lower end rolls on the transverse track 10 through the leg rollers, realizing the overall horizontal expansion and contraction of the frame, and the internal space is increased to be passable by construction vehicles.

[0046] As the load-bearing foundation of the integrated equipment, the rack must meet the requirements of rigidity and stability. The left rectangular frame, the right rectangular frame and the top rectangular frame are all equipped with reinforcing rods in various directions. While strengthening the frame, it also provides an installation basis for other functional components.

[0047] In addition, a crawler system 5 is provided at the bottom of the frame, which is installed at the bottom of the side rectangular frame and the right rectangular frame and arranged longitudinally, so that the integrated equipment can move in the tunnel.

[0048] There are many types of equipment integrated and installed in the rack, including:

[0049] 1. Shotcrete Robot Arm 22

[0050] like Figure 6 The spraying robot arm 22 is installed on the top of the frame through the base. The spraying robot arm 22 can be composed of three sections. The first section of the robot arm is fixed on the slider and slides back and forth under the drive of the slider. The second and third sections can be retracted into the first section of the robot arm to achieve the extension and shortening of the robot arm. Two rotating bearings are set at the front end of the robot arm. Each bearing can achieve 360-degree rotation. The two bearings are set vertically to achieve swinging in all directions in the whole space. The spraying head is provided with a shaking joint to make the sprayed concrete more uniform. At the same time, if Figure 1A shotcrete hopper 4 is installed at the bottom of one longitudinal end of the frame to load the shotcrete material and cooperate with the shotcrete mechanical arm 22 to perform the shotcrete operation.

[0051] The spraying mechanical arm 22 is moved forward and backward by the slide rail. During operation, the spraying mechanical arm 22 is extended to carry out construction work. Under other working conditions, the spraying mechanical arm 22 is retracted to avoid interfering with the construction.

[0052] 2. Arch installation mechanical arm 23

[0053] like Figure 6 The arch mounting manipulators 23 are mounted on the top and sides of the frame via a base. Three of these manipulators 23 are provided. They come in two types: foldable and telescopic. The top is foldable, while the sides are telescopic. A gripper is located at the front of the manipulator to grasp the arch. A tool bar is located at the front, allowing operators to stand within the tool bar during installation. The three manipulators 23 are used to install the arch at the top and on both sides, respectively.

[0054] The arch frame installation mechanical arm 23 is moved forward and backward by the slide rail. During operation, the arch frame installation mechanical arm 23 is extended to carry out construction work. Under other working conditions, the arch frame installation mechanical arm 23 is retracted to avoid interfering with construction.

[0055] 3. Drilling Robot Arm 24

[0056] like Figure 6 The drilling manipulators 24 are mounted on the top and both sides of the frame through the base. There are three of them, equipped with short guide beams and automatically lengthened drill rod working arms. The three drilling manipulators 24 perform drilling operations on the rock mass from different locations.

[0057] The drilling robot arm 24 is moved forward and backward by means of a slide rail. During operation, the drilling robot arm 24 is extended to perform construction work. Under other working conditions, the drilling robot arm 24 is retracted to avoid interfering with construction work.

[0058] 4. Excavator arm 18

[0059] like Figure 4 The telescopic beam 11 is equipped with a slider 14, which is equipped with a power assembly and moves horizontally along the telescopic beam 11. A base 17 is mounted on the slider 14. The inner end of the excavator arm 18 is connected to the base 17, allowing it to be mounted on the frame and perform slag removal operations. A slag removal head 19 is installed on the outer end of the excavator arm 18 to perform slag removal operations. Because the frame height can be adjusted vertically and the slider 14 can be moved horizontally, the excavator arm 18 can also move vertically and horizontally.

[0060] In addition, a crushing head 20 is also provided on the upper part of the outer end of the excavator arm 18, which can be used for clearing dangers and clearing debts. Under the action of the connecting rod, the crushing head 20 can be extended and retracted, and its posture can be adjusted according to whether it is used.

[0061] 5. Conveyor belt 15

[0062] like Figure 1 and Figure 3 A longitudinally arranged conveyor belt 15 is provided below the frame. The scraping head 19 of the excavator arm 18 corresponds to one end of the conveyor belt 15. This end of the conveyor belt 15 is provided with a conveyor belt bell mouth 6. After the rock mass is crushed by the crushing head 20, the scraping head 19 digs it out and pours it into the conveyor belt bell mouth 6, and is then transported backward by the conveyor belt 15.

[0063] The conveyor belt 15 is mounted as follows: a slider 14 is mounted on the telescopic beam 11. This slider 14 is equipped with a power assembly and can move horizontally along the telescopic beam 11. A vertical suspension rod 16 is mounted on the slider 14. A corresponding crossbeam is installed at the corresponding position of the conveyor belt 15 and connected to the suspension rod 16. The suspension rod 16 is a threaded rod, and a power block is mounted on the slider 14. When the power block rotates, it drives the threaded rod up and down. This allows the height of the front and rear ends of the conveyor belt 15 to be adjusted vertically, thereby changing the inclination of the conveyor belt 15.

[0064] The crossbeam and the suspension rod 16 can be connected via a detachable structure, so that the conveyor belt 15 can be quickly installed on the frame, and can also be quickly separated from the frame and removed.

[0065] 6. Shield 1

[0066] like Figure 5 A shield shell 1 is also provided on the top of the frame. The outer cover plays a protective role at the top of the integrated equipment. It can be installed on the top rectangular frame using a hydraulic rod, so that the height can be raised to facilitate the operation of other functional components below.

[0067] Furthermore, the shield shell 1 also serves as another installation base. A longitudinally arranged arch frame moving trolley track 3 is provided on both lateral sides of the shield shell 1. An arch frame moving trolley 2 with a gripper moves longitudinally back and forth along these tracks. Simultaneously, longitudinally arranged arch frame moving trolley tracks 3 are also provided on both lateral sides of the frame. The arch frame moving trolleys 2 on the top and sides can grasp the arch frame and move longitudinally along the frame, cooperating with the arch frame installation robot 23 to perform the arch frame installation operation.

[0068] 7. Explosion-proof door 21

[0069] like Figure 5, a foldable and retractable explosion-proof door 21 is also provided at one longitudinal end of the frame. When the explosion-proof door 21 is retracted, it is located below the shield shell 1. When the explosion-proof door 21 is unfolded, it covers the end of the frame. When blasting operations are carried out, the explosion-proof door 21 can be unfolded to protect the integrated equipment. The explosion-proof door 21 is a sliding and folding structure, which can be composed of 6 pieces, including the upper left, lower left, upper right, lower right, upper middle, and lower middle. The upper left and upper right are connected to the upper middle through sliding rails, and sliding can achieve extension and contraction. The lower left and lower right are the same as above. The upper middle and lower middle blocks are connected by a pin shaft, and both blocks can rotate around the pin shaft. A track is installed at the bottom of the top rectangular frame, and the pin shaft module can slide back and forth along the track. When the explosion-proof door 21 is folded, it can be retracted into the frame.

[0070] Furthermore, longitudinal chutes 13 are provided on both sides of the interior of the frame. The telescopic beam 11's transverse ends are positioned within these chutes and move longitudinally along them. Therefore, components such as the excavator arm 18 and conveyor belt 15 mounted on the telescopic beam 11 can also move longitudinally, providing greater operational flexibility and facilitating posture adjustment. Furthermore, during blasting operations, these components can be retracted into the interior of the frame to prevent damage.

[0071] Other supporting components also need to be integrated into the integrated equipment, including the cab, hydraulic mechanism, air compression mechanism, walking mechanism, water and electricity pipelines, etc. The connection and installation of circuits and pipelines can be carried out according to existing relevant technologies.

[0072] In some other embodiments, a boom 26 is further provided at the top of the rear portion of the frame, serving as a lifting arm for lifting the arch frame and participating in the arch frame installation operation. The boom 26 has a three-section structure, with a base capable of horizontal and vertical rotation. The first and second sections are connected by a rotational connection, while the second and third sections are connected by a telescopic connection.

[0073] Based on the above structure, the integrated equipment provided by the present invention can perform various tunnel construction operations, including:

[0074] 1. Drilling

[0075] like Figure 8 The integrated equipment of this invention features three drilling arms 24, capable of drilling holes in the rock mass from different locations, equivalent to the functionality of a three-arm drilling rig. For small-section tunnels, the drilling arms 24 are equipped with short guide beams and an automatically extendable drill rod arm. This arm, with its short guide beam and automatically extendable drill rod, is specifically designed for cutting and auxiliary cutting holes in small-section tunnels.

[0076] In addition, the drilling robot arm 24 can also perform rock drilling construction and anchor bolt construction. The drilling direction of rock drilling construction is parallel to the forward direction of the line, and the anchor bolt drilling direction is perpendicular to the forward direction of the line. Drilling in different directions can be achieved by simply adjusting the rotating shaft at the front end of the robot arm.

[0077] These construction operations are applicable not only to the drill and blast method, but also to the bench method.

[0078] 2. Charge

[0079] After drilling, explosives are charged. The integrated equipment of the present invention has three arch-mounted manipulators 23, which can be used for charging. The charging is done manually. The arch-mounted manipulators 23 mainly provide a tool bar, which allows personnel to stand inside and be lifted to any working height.

[0080] 3. Blasting protection

[0081] Blasting is carried out after charging construction, such as Figure 9 The integrated equipment is moved to 30-40m behind the face, and the explosion-proof door 21 is deployed to cover the end of the frame. Combined with the shield shell 1, the integrated equipment is fully covered to prevent flying rocks from damaging the equipment and play a protective role.

[0082] 4. Loading and delivery

[0083] like Figure 10 The excavator's slag is removed by the scraper head 19 and poured into the conveyor belt bell mouth 6, where it is conveyed backward by the conveyor belt 15. During this process, the excavator arm 18 moves horizontally and left and right with the help of the slider 14, vertically and downward with the help of the telescopic legs 12, and longitudinally and forward with the help of the chute 13. Simultaneously, the conveyor belt 15 adjusts its inclination with the help of the boom 16, moves horizontally and left and right with the help of the slider 14, vertically and downward with the help of the telescopic legs 12, and longitudinally and forward with the help of the chute 13.

[0084] In addition, the conveyor belt 15 can be quickly detached from the frame. When the equipment requires repair and maintenance, or in an emergency, the conveyor belt 15 can be removed, separated, and driven out to ensure internal passage. The frame moves laterally and rises vertically, forming an emergency passageway at least 3.2m x 3.5m inside, ensuring normal tunnel construction.

[0085] The slag discharge efficiency of this equipment can reach 150m 3 / h, the maximum diameter of the slag stone is 60cm, and the effective slag removal distance is 7m.

[0086] This construction operation is applicable not only to the drilling and blasting method, but also to the step method.

[0087] 5. Eliminate risks and settle debts

[0088] The crushing head 20 on the excavator arm 18 can further crush the slag in the tunnel to complete the hazard removal and debt clearance construction.

[0089] 6. Arch installation

[0090] like Figure 7 The integrated equipment of the present invention has four arch-mounted trolley tracks 3 and three arch-mounted mechanical arms 23. Four arch-mounted trolleys 2 are provided: two at the top and one each at a certain height above the ground on the left and right sides. When installing the top arch unit, the two top trolleys are used; when installing the left arch unit, the two bottom left and top left trolleys are used; the same procedure is used when installing the right arch unit.

[0091] After the arch frame is grasped by the gripper of the arch frame moving trolley 2, it moves longitudinally back and forth along the arch frame moving trolley track 3, handing it over to the corresponding arch frame installation robot 23 for installation of the arch frame at different locations. During the arch frame installation process, the slag conveyor belt 15 is first lowered vertically to the ground. Then, a lifting mechanical arm is used to install the arch frame unit on the corresponding arch frame moving trolley 2. The arch frame moving trolley 2 transports the arch frame to the front end, where the arch frame installation robot 23 grasps the arch frame and installs it in the designated location.

[0092] 7. Spray mixing

[0093] The integrated equipment of the present invention has a spraying mechanical arm 22 and a spraying hopper 4, which can carry out spray-mixing construction in the tunnel and complete the initial concrete spraying operation. The spraying efficiency is not less than 40m 3 / h.

[0094] The integrated equipment of the present invention can be designed to have an overall length, width and height of 12m×4.8m×6m, a weight of about 60-80t, a small size, strong flexibility, a maximum power of 350KW, low energy consumption, and a slag discharge efficiency of up to 120m 3 / h, with extremely high working efficiency and the following technical advantages:

[0095] Key advantages:

[0096] 1. The types and number of construction machinery can be greatly reduced, which reduces the interference in the tunnel and makes the advantages of small-section tunnels more obvious;

[0097] 2. It saves the time for replacing equipment, installing and removing power supplies, water pipes and air ducts, and improves construction efficiency.

[0098] 3. The mechanization of tunnel excavation and support has been achieved, significantly reducing the number of operators in the tunnel. This equipment only requires one operator to complete the work of multiple operators.

[0099] 4. The integrated equipment only needs one set of chassis and travel system to replace the relevant components of multiple sets of original equipment, which can reduce the total cost of the equipment.

[0100] 5. The equipment frame has high structural strength and large bearing capacity, which can withstand certain rockfalls and small landslides to ensure the safety of operators.

[0101] The above examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. Those skilled in the art can make several simple deductions, modifications or substitutions based on the concept of the present invention.

Claims

1. Integrated equipment for small-section tunnel construction, characterized by: The integrated equipment comprises a frame, the bottom of which is provided with a crawler system (5); The top of the frame is provided with a shotcrete mechanical arm (22), an arch mounting mechanical arm (23) and a drilling mechanical arm (24), and both lateral sides of the frame are provided with an arch mounting mechanical arm (23) and a drilling mechanical arm (24); A longitudinally arranged conveyor belt (15) is provided below the frame, and an excavator arm (18) is provided at one longitudinal end of the frame and corresponds to one end of the conveyor belt (15).

2. The integrated equipment for small-section tunnel construction according to claim 1 is characterized in that: A shield shell (1) is also provided on the top of the frame, and longitudinally arranged arch frame moving trolley tracks (3) are provided on both lateral sides of the surface of the shield shell (1), and an arch frame moving trolley (2) with a gripper moves longitudinally forward and backward along the arch frame moving trolley tracks (3); The horizontal sides of the frame are also provided with longitudinally arranged arch frame moving trolley tracks (3), and the arch frame moving trolley (2) with a gripper moves longitudinally forward and backward along the arch frame moving trolley tracks (3).

3. The integrated equipment for small-section tunnel construction according to claim 2 is characterized in that: A foldable explosion-proof door (21) is also provided at one longitudinal end of the frame. When the explosion-proof door (21) is folded, it is located below the shield shell (1). When the explosion-proof door (21) is unfolded, it covers the end of the frame.

4. The integrated equipment for small-section tunnel construction according to claim 3 is characterized by: The frame comprises a left rectangular frame, a right rectangular frame and a top rectangular frame, and a sliding mechanism (8) is provided between the bottom of the top rectangular frame and the top of the right rectangular frame; The left rectangular frame and the top rectangular frame form an immovable frame (7), and the right rectangular frame is a movable frame (9). The top of the right rectangular frame is moved horizontally left and right along the bottom of the top rectangular frame using the sliding mechanism (8).

5. The integrated equipment for small-section tunnel construction according to claim 4 is characterized in that: The longitudinal ends of the frame are door frames (25), and a transversely arranged telescopic beam (11) is provided in the door frame (25). The transverse expansion and contraction of the telescopic beam (11) drives the movable frame (9) to move horizontally left and right.

6. The integrated equipment for small-section tunnel construction according to claim 5, characterized in that: The frame is provided with longitudinally arranged sliding grooves (13) on both lateral sides inside the frame, and the transverse ends of the telescopic beam (11) are located in the sliding grooves (13) and move longitudinally forward and backward along the sliding grooves (13).

7. The integrated equipment for small-section tunnel construction according to claim 6, characterized in that: A telescopic leg (12) is provided at the bottom of the door frame (25), a transverse track (10) is provided on the ground below the telescopic leg (12) on one lateral side, and a leg roller provided at the bottom of the telescopic leg (12) moves laterally left and right along the transverse track (10).

8. The integrated equipment for small-section tunnel construction according to claim 7 is characterized in that: A slider (14) is provided on the telescopic beam (11), and the slider (14) moves laterally left and right along the telescopic beam (11); A vertical suspension rod (16) is provided on the slider (14), and a crossbeam is provided at a corresponding position of the conveyor belt (15) and is connected to the suspension rod (16).

9. The integrated equipment for small-section tunnel construction according to claim 8, characterized in that: A slider (14) is provided on the telescopic beam (11), and the slider (14) moves laterally left and right along the telescopic beam (11); A base (17) is provided on the slider (14), the inner end of the excavator arm (18) is connected to the base (17), and the outer end of the excavator arm (18) is provided with a slag scraper head (19).

10. The integrated equipment for small-section tunnel construction according to claim 9, characterized in that: A crushing head (20) is provided on the upper portion of the outer end of the excavator arm (18).

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