A tunnel pre-cut device and method

Abstract

The application discloses a tunnel pre-cutting groove device and method, and belongs to the field of tunnel construction.The device comprises a support, which is fixedly installed on a support base; the support base is in sliding connection with a guide rail; the support base is symmetrically provided with a fixing base; the fixing base is fixedly provided with a dust falling assembly; the dust falling assembly comprises a rotary base and a spray head; the fixing base is provided with the rotary base which can rotate; the rotary base is fixedly provided with a driving base; the driving base is rotationally connected with a driving shaft; compared with the prior art, the tunnel pre-cutting groove device and method can realize dust falling through the swingable spray head; meanwhile, the spray head can continuously shake up and down during water spraying, so as to give the sprayed water droplets initial kinetic energy, accelerate the moving speed of the water droplets, make the water droplets move to the cutting arm faster and fall down faster; the water can accelerate the dissolution of dust and drive the dust to fall down; meanwhile, the sprayed water from the spray head can also cool the cutting arm.

Description

Technical Field

[0001] This invention relates to the field of tunnel construction, and specifically to a tunnel pre-cutting equipment and method. Background Technology

[0002] The pre-grooving method, also known as the pre-lining method, was first used in the construction of an underground station for the French rapid transit system in the 1970s. It involves using specialized tunnel pre-grooving equipment to cut a groove of a certain depth along the outer contour of the tunnel. Concrete is then filled into the groove to form a pre-supported arch, under which the tunnel is excavated. Because a lining layer is constructed before excavation, it is also called the pre-lining method. Tunnel pre-grooving equipment typically includes a cutting arm assembly, a support frame, and a contour cutting track. During operation, the cutting arm assembly moves along the contour cutting track, and the arc-shaped chain cutting arm within the assembly cuts a groove along the outer contour of the tunnel. Concrete is then injected into the groove using grouting equipment to form the pre-supported arch. However, the cutting process generates a large amount of dust, and the reciprocating drive of the chain cutting arm further propels sand and dust, expanding the dust's spread. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention proposes a tunnel pre-cutting device and method. It utilizes a swingable nozzle for dust suppression, which continuously vibrates up and down during water spraying, providing initial kinetic energy to the water droplets and accelerating their movement, allowing them to reach the cutting arm more quickly and fall rapidly. This also accelerates the dissolution of dust by the water and helps it fall. Simultaneously, the water sprayed from the nozzle also cools the cutting arm.

[0004] The objective of this invention can be achieved through the following technical solutions:

[0005] A tunnel pre-cutting device includes a bracket; the bracket is fixedly mounted on a support base; the support base is slidably connected to a guide rail; fixed bases are symmetrically mounted on the support base; a dust suppression component is fixedly mounted on the fixed base; the dust suppression component includes a rotary seat and a nozzle; the fixed base is provided with a rotatable rotary seat; a drive base is fixedly mounted on the rotary seat; a drive shaft is rotatably connected to the drive base; a connecting block and a spur gear are fixedly mounted on the drive shaft; a nozzle is fixedly mounted on the connecting block; a screw seat is fixedly mounted on the rotary seat; a sliding groove is provided on the screw seat; a rotatable screw is provided inside the sliding groove; a movable column is threadedly connected to the screw; the movable column is slidably connected to the sliding groove; a drive rod is rotatably connected to the movable column; a movable hole is provided on the drive rod; a drive rod is fixedly mounted on the nozzle; a drive column is fixedly mounted on the drive rod in the movable hole; a linearly movable rack is provided on the rotary seat; the rack meshes with the spur gear.

[0006] In some embodiments, the rotary seat is fixedly mounted with a support platform; the support platform and the rotary seat are slidably connected by a lifting rod; the lifting rod is fixedly mounted with a first spur rack; the lifting rod is symmetrically fixedly mounted with two second spur racks inside the fixed seat; the support platform is symmetrically fixedly mounted with a control seat; each control seat is rotatably connected to a control shaft; one control shaft is fixedly mounted with a first cylinder, and the other control shaft is fixedly mounted with a second cylinder; each of the first and second cylinders is symmetrically fixedly mounted with two first arc-shaped racks; the central angle of the first arc-shaped rack is less than 90 degrees; each second spur rack can mesh with the first arc-shaped rack; one first arc-shaped rack meshes with one second spur rack; the support platform is fixedly mounted with a connecting seat between the control seats; the connecting seat is rotatably connected to a connecting shaft; the connecting shaft has two first bevel gears linearly and evenly distributed; each control shaft is fixedly mounted with a second bevel gear; the second bevel gear meshes with one first bevel gear; the support platform is mounted with a first motor; the first motor is fixedly connected to the connecting shaft.

[0007] In some embodiments, at least two dust-suppressing components are fixedly installed on the fixed base; each rotary base is fixedly installed with a sprocket; the sprockets are connected by a chain; each support platform is fixedly installed with a spur gear; a swing base is fixedly installed on the side of the support base near the support platform; the swing base is rotatably connected to a swing shaft; a turntable is fixedly installed on the swing shaft; an arc-shaped rack is fixedly installed on the turntable; the arc-shaped rack meshes with the spur gear; a swing column is fixedly installed on the side of the turntable near the arc-shaped rack; a swing rod is rotatably connected to the swing column; a swing column is fixedly installed on the side of the swing rod away from the swing column; a swing rod is rotatably connected to the swing column; a motor is fixedly installed on the side of the rotary base near the swing rod; the motor is fixedly connected to the side of the swing rod away from the swing column.

[0008] In some embodiments, the screw is rotatably connected to the screw seat; each screw is fixedly mounted with a spur gear three; a transmission seat is fixedly mounted inside the fixed seat on the side near the spur gear three; each transmission seat is rotatably connected to a transmission shaft; each transmission shaft is fixedly mounted with a spur gear four and a sprocket two; each spur gear four meshes with one of the spur gear three; a motor three is fixedly mounted on the fixed seat; a bevel gear three is fixedly mounted on the motor three; one of the transmission shafts is fixedly mounted with a bevel gear four; each bevel gear three meshes with one of the bevel gear four.

[0009] In some embodiments, the movable hole is circular; the sidewall of the movable hole is circumferentially distributed with limiting grooves; a spring is fixedly installed inside the limiting groove; a limiting block is slidably connected between the limiting groove and the spring and the drive column; the limiting block is fixedly connected to the spring; and the limiting block abuts against the drive column.

[0010] In some embodiments, the support base is symmetrically and fixedly mounted with a connecting frame; the connecting frame is fixedly mounted with a stirring cylinder; the stirring cylinder is provided with two feed inlets; a stirring shaft one is fixedly mounted inside the stirring cylinder; a stirring shaft two is slidably connected to the stirring shaft one; the stirring shaft two is provided with a drive groove; a drive block is fixedly mounted in the drive groove of the stirring shaft one; the drive block is slidably connected to the drive groove; a motor four is fixedly mounted at the bottom of the stirring cylinder; the motor four is fixedly connected to the stirring shaft one; stirring rods are evenly distributed around the circumference of the stirring shaft two; the stirring rods are evenly distributed around the circumference of the stirring shaft two. A stirring plate is fixedly installed; the angle between the stirring plate and the axis of the first stirring shaft is between 30° and 70°; a linear drive mechanism is provided at the top of the stirring drum; the linear drive mechanism drives the second stirring shaft to move linearly along the drive groove; a water pump is fixedly installed on the support base; the water pump is fixedly installed with a first delivery pipe and a second delivery pipe; the second delivery pipe is connected to the bottom of the stirring drum; a connector is fixedly installed on the first delivery pipe; the number of connectors is equal to the number of nozzles installed on the fixed base; the nozzles and the connectors can be connected by flexible hoses.

[0011] In some embodiments, the linear drive mechanism includes a motor, a spring, and a cam; a drive disk is fixedly mounted on one side of the stirring shaft extending from the stirring cylinder; the spring is fitted between the driving disk and the stirring cylinder; the motor is fixedly connected to the stirring cylinder; the motor is fixedly mounted on the stirring cylinder; the cam is fixedly mounted on the motor; and the cam abuts against the drive disk.

[0012] In some embodiments, the stirring plate is uniformly distributed with perforations.

[0013] In some embodiments, the support base is fixedly mounted with a motor six; the fixed base is mounted on the shaft of the motor six.

[0014] In some embodiments, a guide rail is included; the support base is movable linearly along the guide rail; a roller is rotatably connected to the bottom of the guide rail; both the guide rail and the support base are fixedly mounted with hydraulic push rods; and wheels are fixedly mounted on the guide rail.

[0015] The beneficial effects of this invention are:

[0016] The tunnel pre-cutting equipment and method of the present invention uses a swingable nozzle to reduce dust. At the same time, the nozzle continuously shakes up and down during the water spraying process, giving the sprayed water droplets initial kinetic energy, accelerating the movement speed of the water droplets, so that they move to the cutting arm more quickly and fall down quickly; it also accelerates the dissolution of dust by water and causes the dust to fall; at the same time, the water sprayed by the nozzle can also cool the cutting arm. Attached Figure Description

[0017] The invention will now be further described with reference to the accompanying drawings.

[0018] Figure 1 This is a three-dimensional structural diagram of the present application;

[0019] Figure 2 This is a schematic diagram of the interior of the stirring tank in this application;

[0020] Figure 3 This is a schematic diagram of the dust suppression structure of this application;

[0021] Figure 4 This is a schematic diagram of the dust suppression structure transmission in this application;

[0022] Figure 5 This is an enlarged structural diagram of point A in this application;

[0023] Figure 6 This is an enlarged structural diagram of section B in this application;

[0024] Figure 7 This is an enlarged structural diagram of section C in this application. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0027] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] Fixed connections in this application refer to connections where parts or components do not move relative to each other after installation. Common examples include using screws, splines, or wedges to fix components together. This type of connection allows for disassembly during maintenance without damaging the parts. Other methods include welding, riveting, and tenon joints. These methods require forging, sawing, or oxy-acetylene cutting for disassembly during maintenance or replacement, so the parts are generally not reusable. Rotating connections in this application refer to connections where parts or components rotate relative to a fixed component after installation. Common forms include mounting bearings on the fixed component, with the part mounted on the inner or outer ring of the bearing, allowing rotational movement via the bearing. Sliding connections in this application refer to connections where parts or components can move on a fixed component after installation.

[0029] A tunnel pre-cutting device includes a bracket 1; the bracket 1 is fixedly mounted on a support base 2; the support base 2 is slidably connected to a guide rail 3; fixed bases 4 are symmetrically mounted on the support base 2; a dust suppression component is fixedly mounted on the fixed base 4; the dust suppression component includes a rotary seat 5 and a nozzle 6; the fixed base 4 is provided with a rotatable rotary seat 5; a drive base 7 is fixedly mounted on the rotary seat 5; a drive shaft 8 is rotatably connected to the drive base 7; a connecting block 9 and a spur gear 10 are fixedly mounted on the drive shaft 8; the nozzle 6 is fixedly mounted on the connecting block 9; the rotary seat 5 is fixedly mounted on the drive shaft 8. A screw seat 11 is fixedly installed; the screw seat 11 is provided with a sliding groove; a rotatable screw 12 is provided inside the sliding groove; the screw 12 is threadedly connected to a movable column 13; the movable column 13 is slidably connected to the sliding groove; a drive rod 14 is rotatably connected to the movable column 13; the drive rod is provided with a movable hole 15; a drive rod 16 is fixedly installed on the nozzle 6; a drive column 17 is fixedly installed in the movable hole 15 on the drive rod 16; a rotary seat 5 is provided with a linearly movable rack 18; the rack 18 meshes with a spur gear 10.

[0030] After the screw 12 rotates, it drives the movable column 13 to move up or down through the thread. The movable column 13 will drive the drive rod 14 to move and deflect. The drive rod 14 drives the drive rod 16 to deflect through the movable hole 15, thereby driving the nozzle 6 to adjust the vertical angle. At the same time, the nozzle 6 will drive the rack 18 to move up and down through the drive shaft 8 and the spur gear 10.

[0031] In some embodiments, a support platform 19 is fixedly installed on the rotary seat 5; a lifting rod 20 is slidably connected to both the support platform 19 and the rotary seat 5; a first rack 18 is fixedly installed on the lifting rod 20; two second racks 21 are symmetrically fixedly installed on the lifting rod 20 inside the fixed seat 4; a control seat 22 is symmetrically fixedly installed on the support platform 19; each control seat 22 is rotatably connected to a control shaft 23; a first cylinder 24 is fixedly installed on one control shaft 23, and a second cylinder 25 is fixedly installed on the other control shaft 23; two arc-shaped racks are symmetrically fixedly installed on both the first cylinder 24 and the second cylinder 25. 1.26; The central angle corresponding to the arc-shaped rack 26 is less than 90 degrees; Both straight racks 21 can mesh with the arc-shaped rack 26; One arc-shaped rack 26 meshes with one straight rack 21; A connecting seat 27 is fixedly installed on the support platform 19 between the control seats 22; The connecting seat 27 is rotatably connected to the connecting shaft 28; The connecting shaft 28 has two bevel gears 29 evenly distributed linearly; Both control shafts 23 are fixedly installed with bevel gears 30; Each bevel gear 30 meshes with one bevel gear 29; A motor 31 is installed on the support platform 19; The motor 31 is fixedly connected to the connecting shaft 28;

[0032] After the vertical angle adjustment of nozzle 6 is completed, motor 31 is started. Motor 31 drives connecting shaft 28 to rotate. Connecting shaft 28 drives bevel gear 30 to rotate in the same direction via two bevel gears 29, thereby driving control shaft 23 to rotate. Control shaft 23 drives two cylinders to rotate in the same direction. Since cylinders 24 and 25 are located on both sides of lifting rod 20, when the arc-shaped rack 26 on cylinder 24 drives lifting rod 20 to rise, the arc-shaped rack 26 on cylinder 25 drives lifting rod 20 to fall; when the arc-shaped rack 26 on cylinder 24 drives lifting rod 20 to fall, the arc-shaped rack 26 on cylinder 25 drives lifting rod 20 to rise. Initially, the first arc-shaped rack 26 on cylinder 24 meshes with the straight rack 21, driving lifting rod 20 to move. After engagement, the first arc-shaped rack 26 on cylinder 25 meshes with another straight rack 21, driving the lifting rod 20 to move in the opposite direction. After engagement, the second arc-shaped rack 26 on cylinder 24 meshes with another straight rack 21, driving the lifting rod 20 to move. After engagement, the second arc-shaped rack 26 on cylinder 25 meshes with another straight rack 21, driving the lifting rod 20 to move in the opposite direction. Repeating the above actions, the lifting rod 20 will move up and down reciprocally. At the same time, since the central angle corresponding to the arc-shaped rack 26 is less than 90 degrees, when the four arc-shaped racks 26 are placed on a cylinder, they cannot form a complete circle, but form a gear with missing teeth. Therefore, when the straight rack 21 switches to mesh with the arc-shaped rack 26, there is a gap, and the straight rack 21 does not mesh with any arc-shaped rack 26.

[0033] In some embodiments, at least two dust-reducing components are fixedly installed on the fixed base 4; each of the rotary bases 5 is fixedly installed with a sprocket 32; the sprocket 32 ​​is connected by a chain; each of the support platforms 19 is fixedly installed with a spur gear 33; a swing base is fixedly installed on the side of the support base 2 near the support platform 19; the swing base is rotatably connected to a swing shaft; a turntable 34 is fixedly installed on the swing shaft; an arc-shaped rack 35 is fixedly installed on the turntable 34; the arc-shaped rack 35 meshes with the spur gear 33; a swing column 36 is fixedly installed on the side of the turntable 34 near the arc-shaped rack 35; a swing rod 37 is rotatably connected to the swing column; a swing column 38 is fixedly installed on the side of the swing rod 37 away from the swing column 36; a swing rod 39 is rotatably connected to the swing column 38; a motor 40 is fixedly installed on the side of the rotary base 5 near the swing rod 39; the motor 40 is fixedly connected to the side of the swing rod 39 away from the swing column 38.

[0034] After motor 2 40 starts, motor 2 40 drives swing arm 2 to rotate. Swing arm 2 drives swing arm 1 to swing through swing column 2 38. Swing arm 1 drives turntable 34 to rotate through swing column 1 36. Turntable 34 drives arc rack 2 35 to swing back and forth, thereby driving spur gear 2 33, support platform 19 and rotary seat 5 to swing. Rotary seat 5 achieves synchronous rotation through sprocket 1 32 and chain.

[0035] In some embodiments, the screw 12 is rotatably connected to the screw seat 11; each screw 12 is fixedly mounted with a spur gear 41; each fixed seat 4 has a transmission seat fixedly mounted on the side near the spur gear 41; each transmission seat is rotatably connected to a transmission shaft 42; each transmission shaft 42 is fixedly mounted with a spur gear 43 and a sprocket 44; each spur gear 43 meshes with a spur gear 41; each fixed seat 4 is fixedly mounted with a motor 45; each motor 45 is fixedly mounted with a bevel gear 46; each transmission shaft 42 is fixedly mounted with a bevel gear 47; each bevel gear 46 meshes with a bevel gear 47; the motor 45 drives the bevel gear 47 to rotate through the bevel gear 46, the transmission shaft 42 rotates synchronously through the sprocket 44 and the chain, and the transmission shaft 42 drives the spur gear 41 to rotate through the spur gear 43, thereby controlling the screw 12 to rotate.

[0036] The grooving method of the tunnel pre-grooving equipment of this application includes the following steps:

[0037] Assemble the tunnel pre-cutting equipment at the location to be cut, and install the contour cutting track and cutting arm device; connect the nozzle 6 to the water supply equipment through a hose;

[0038] Then, based on the cutting height, adjust the vertical angle of the nozzle 6: the motor 3 45 drives the bevel gear 3 46 to rotate, which in turn drives the bevel gear 47 to rotate. The transmission shaft 42 rotates synchronously through the sprocket 2 44 and the chain. The transmission shaft 42 drives the spur gear 3 41 to rotate through the spur gear 43, which in turn controls the rotation of the screw 12. The screw 12 drives the movable column 13 to move up or down through the thread. The movable column 13 drives the drive rod 14 to move and deflect. The drive rod 14 drives the drive rod 2 16 to deflect through the movable hole 15, thereby driving the nozzle 6 to adjust its vertical angle. At the same time, the nozzle 6 drives the rack 18 and the lifting rod 20 to move up and down through the drive shaft 8 and the spur gear 10. At this time, the support bar 2 on the lifting rod 20 does not mesh with the arc rack 26.

[0039] Next, the rotary seat 5 is controlled to drive the nozzle 6 to swing: the second motor 40 is started, the second motor 40 drives the second swing arm to rotate, the second swing arm drives the first swing arm to swing through the second swing column 38, the first swing arm drives the turntable 34 to rotate through the first swing column 36, the turntable 34 drives the second arc rack 35 to swing back and forth, thereby driving the second spur gear 33, the support platform 19 and the rotary seat 5 to swing horizontally; the rotary seat 5 achieves synchronous rotation through the first sprocket 32 ​​and the chain;

[0040] The cutting arm device is started to perform the cutting operation, and motor 31 is started at the same time. Motor 31 drives the connecting shaft 28 to rotate. The connecting shaft 28 drives the bevel gear 30 to rotate in the same direction through two bevel gears 29, thereby driving the control shaft 23 to rotate. The control shaft 23 drives the two cylinders to rotate in the same direction. Since cylinders 24 and 25 are distributed on both sides of the lifting rod 20, the arc-shaped racks 26 on both sides will drive the straight rack 21 and the lifting rod 20 to move up and down reciprocally. Since the drive column 17 is located in the movable hole 15, the drive column 17 can move within the movable hole 15 instead of being restricted to a stationary position.

[0041] Therefore, the lifting rod 20 drives the spur gear 10 and the drive shaft 8 to swing through the rack 18, thereby causing the nozzle 6 to swing continuously up and down; controlling the nozzle 6 to spray water, the water droplets sprayed by the nozzle 6 in the horizontal direction will form a water cover to cover the dust generated by the cutting operation, and the water droplets will carry the dust down; the amount of dust carried down by the water droplets is limited, but during the horizontal swing of the nozzle 6, the nozzle 6 continuously swings up and down, at this time the water droplets increase the vertical force, which is used to accelerate the movement speed of the water droplets, thus increasing the density of the water droplets. The water droplets that have been adhering to dust will fall faster and be replaced by subsequent unadhered water droplets, thereby improving the dust prevention effect.

[0042] In some embodiments, the movable hole 15 is circular; the sidewall of the movable hole 15 is circumferentially distributed with limiting grooves; a spring is fixedly installed inside the limiting groove; a limiting block 48 is slidably connected between the limiting groove and the spring and the drive column 17; the limiting block 48 is fixedly connected to the spring; the limiting block 48 abuts against the drive column 17; when the drive column 17 moves in the movable hole 15, the drive column 17 will squeeze the limiting block 48, thereby compressing the spring to prevent the drive column 17 from hitting the drive rod and preventing the drive column 17 from hitting the end.

[0043] In some embodiments, a connecting frame 49 is symmetrically fixedly installed on the support base 2; a stirring cylinder 50 is fixedly installed on the connecting frame 49; the stirring cylinder 50 is provided with two feed inlets 51; a stirring shaft 52 is fixedly installed inside the stirring cylinder 50; a stirring shaft 53 is slidably connected to the stirring shaft 52; a driving groove 54 is provided on the stirring shaft 53; a driving block is fixedly installed in the driving groove 54 on the stirring shaft 52; the driving block is slidably connected to the driving groove 54; a motor 55 is fixedly installed at the bottom of the stirring cylinder 50; the motor 55 is fixedly connected to the stirring shaft 52; stirring rods are evenly distributed around the circumference of the stirring shaft 53; stirring... Each rod is fixedly equipped with a stirring plate 56; the angle between the stirring plate 56 and the axis of stirring shaft 52 is between 30° and 70°; a linear drive mechanism is provided at the top of the stirring drum 50; the linear drive mechanism drives stirring shaft 53 to move linearly along the drive groove 54; a water pump 57 is fixedly installed on the support base 2; a first delivery pipe 58 and a second delivery pipe 59 are fixedly installed on the water pump 57; the second delivery pipe 59 is connected to the bottom of the stirring drum 50; a connector 60 is fixedly installed on the first delivery pipe 58; the number of connectors 60 is equal to the number of nozzles 6 installed on the fixed base 4; the nozzles 6 and connectors 60 can be connected by hoses.

[0044] The dust composition generated by the pre-cutting trenches in different regions varies. Therefore, the aforementioned equipment is used to introduce corresponding reagents to enhance the dust suppression and degradation effects of the water sprayed from nozzle 6. During use, the reagent and water are poured into the mixing drum 50 through the inlet 51. Motor 4 55 drives the first mixing shaft 52, the second mixing shaft 53, the mixing rod, and the mixing plate 56 to rotate. The mixing plate 56 mixes the reagent and water. Simultaneously, the second mixing shaft 53 moves up and down, and during this movement, the mixing plate 56 drives the reagent and water to move up and down, thereby improving the mixing effect and speed. After mixing, the water pump 57 delivers the mixture through the second conveying pipe 59 to the first conveying pipe 58. The first conveying pipe 58 then delivers the mixture to nozzle 6 through connector 60 and a hose. Nozzle 6 further enhances the dust suppression effect by spraying the liquid containing the reagent.

[0045] In some embodiments, the linear drive mechanism includes a motor 61, a spring 62, and a cam 63; a drive disk 64 is fixedly mounted on one side of the stirring shaft 53 extending out of the stirring cylinder 50; a spring 62 is fitted between the driving disk 64 and the stirring cylinder 50 on the stirring shaft 53; the motor 61 is fixedly connected to the stirring cylinder 50; the stirring cylinder 50 is fixedly mounted with the motor 61; the motor 61 is fixedly mounted with the cam 63; the cam 63 abuts against the drive disk 64; the motor 61 drives the drive disk 64 and the stirring shaft 53 to move up and down through the cam 63 and the spring.

[0046] In some embodiments, the stirring plate 56 is evenly distributed with through holes 65. During the rotation of the stirring plate 56, some liquid will pass through the through holes 65 and some will be blocked by the stirring plate 56, thereby causing the internal liquid speed to be inconsistent, thus changing the different liquid contact surfaces and improving the mixing effect.

[0047] In some embodiments, a motor 66 is fixedly mounted on the support base 2; a fixed base 4 is mounted on the shaft of the motor 66; when there are a large number of nozzles 6, the fixed base 4 can be rotated by the motor 66 to make way for vehicles, equipment or people to pass through inside the bracket 1.

[0048] In some embodiments, a guide rail 3 is included; a support base 2 can move linearly along the guide rail 3; a roller is rotatably connected to the bottom of the guide rail 3; a hydraulic push rod 67 is fixedly installed on both the guide rail 3 and the support base 2; a wheel is fixedly installed on the guide rail 3; the support base 2 can be equipped with a roller assembly with braking function to move on the guide rail 3, thereby adjusting the position of the cutting arm; the hydraulic push rod 67 is used to drive the equipment to move upward, thereby leveling the equipment.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A tunnel pre-cutting groove device, characterized in that, Includes a bracket (1); the bracket (1) is fixedly mounted on a support base (2); the support base (2) is slidably connected to a guide rail (3); a fixed base (4) is symmetrically mounted on the support base (2); a dust suppression component is fixedly mounted on the fixed base (4); the dust suppression component includes a rotary seat (5) and a nozzle (6); the fixed base (4) is provided with a rotatable rotary seat (5); a drive base (7) is fixedly mounted on the rotary seat (5); a drive shaft (8) is rotatably connected to the drive base (7); a connecting block (9) and a spur gear (10) are fixedly mounted on the drive shaft (8); the nozzle (6) is fixedly mounted on the connecting block (9); the rotary seat (5) is fixedly mounted on the drive shaft (8). The device is equipped with a screw seat (11); the screw seat (11) is provided with a sliding groove; a rotatable screw (12) is provided inside the sliding groove; the screw (12) is threadedly connected to a movable column (13); the movable column (13) is slidably connected to the sliding groove; the movable column (13) is rotatably connected to a drive rod (14); the drive rod is provided with a movable hole (15); the nozzle (6) is fixedly installed with a drive rod (16); the drive rod (16) is fixedly installed with a drive column (17) inside the movable hole (15); the rotary seat (5) is provided with a linearly movable rack (18); the rack (18) meshes with the spur gear (10); The rotary seat (5) is fixedly mounted with a support platform (19); the support platform (19) and the rotary seat (5) are slidably connected with lifting rods (20); the lifting rods (20) are fixedly mounted with the first straight rack (18); the lifting rods (20) are symmetrically fixedly mounted with two second straight racks (21) inside the fixed seat (4); the support platform (19) is symmetrically fixedly mounted with control seats (22); the control seats (22) are rotatably connected with control shafts (23); one control shaft (23) is fixedly mounted with a cylinder (24), and the other control shaft (23) is fixedly mounted with a cylinder (25); the cylinders (24) and (25) are symmetrically fixedly mounted with two arc-shaped racks (26); the arc The central angle corresponding to the first arc rack (26) is less than 90 degrees; the second straight rack (21) can mesh with the first arc rack (26); one first arc rack (26) meshes with one second straight rack (21); the support platform (19) is fixedly installed with a connecting seat (27) between the control seat (22); the connecting seat (27) is rotatably connected to a connecting shaft (28); the connecting shaft (28) has two bevel gears (29) evenly distributed linearly; the control shaft (23) is fixedly installed with bevel gears (30); the bevel gears (30) mesh with one of the bevel gears (29); the support platform (19) is installed with a motor (31); the motor (31) is fixedly connected to the connecting shaft (28); At least two dust-reducing components are fixedly installed on the fixed base (4); each of the rotary bases (5) is fixedly installed with a sprocket (32); the sprockets (32) are connected by a chain; each of the support platforms (19) is fixedly installed with a spur gear (33); a swing base is fixedly installed on the side of the support base (2) near the support platform (19); the swing base is rotatably connected to a swing shaft; a turntable (34) is fixedly installed on the swing shaft; an arc-shaped rack (35) is fixedly installed on the turntable (34); the arc-shaped rack (35) meshes with the spur gear (33); A swing column (36) is fixedly installed on the side of the turntable (34) near the arc-shaped rack (35); a swing rod (37) is rotatably connected to the swing column; a swing column (38) is fixedly installed on the side of the swing rod (37) away from the swing column (36); a swing rod (39) is rotatably connected to the swing column (38); a motor (40) is fixedly installed on the side of the rotary seat (5) near the swing rod (39); the motor (40) is fixedly connected to the side of the swing rod (39) away from the swing column (38).

2. The tunnel pre-cutting groove equipment according to claim 1, characterized in that, The screw (12) is rotatably connected to the screw seat (11); each screw (12) is fixedly mounted with a spur gear three (41); each fixed seat (4) is fixedly mounted with a transmission seat on the side near the spur gear three (41); each transmission seat is rotatably connected with a transmission shaft (42); each transmission shaft (42) is fixedly mounted with a spur gear four (43) and a sprocket two (44); each spur gear four (43) meshes with one of the spur gear three (41); each fixed seat (4) is fixedly mounted with a motor three (45); each motor three (45) is fixedly mounted with a bevel gear three (46); each transmission shaft (42) is fixedly mounted with a bevel gear four (47); each bevel gear three (46) meshes with one of the bevel gear four (47).

3. The tunnel pre-cutting equipment according to claim 2, characterized in that, The movable hole (15) is circular; the side wall of the movable hole (15) is evenly distributed with limiting grooves in a circular pattern; a spring is fixedly installed inside the limiting groove; a limiting block (48) is slidably connected between the spring and the drive column (17); the limiting block (48) is fixedly connected to the spring; the limiting block (48) abuts against the drive column (17).

4. The tunnel pre-cutting equipment according to claim 3, characterized in that, The support base (2) is symmetrically and fixedly mounted with a connecting frame (49); the connecting frame (49) is fixedly mounted with a stirring cylinder (50); the stirring cylinder (50) is provided with two feed inlets (51); a stirring shaft one (52) is fixedly mounted inside the stirring cylinder (50); a stirring shaft two (53) is slidably connected to the stirring shaft one (52); a driving groove (54) is provided on the stirring shaft two (53); a driving block is fixedly mounted in the driving groove (54) of the stirring shaft one (52); the driving block is slidably connected to the driving groove (54); a motor four (55) is fixedly mounted at the bottom of the stirring cylinder (50); the motor four (55) is fixedly connected to the stirring shaft one (52); stirring rods are evenly distributed around the circumference of the stirring shaft two (53); all stirring rods are fixed. A stirring plate (56) is installed; the angle between the stirring plate (56) and the axis of the first stirring shaft (52) is between 30° and 70°; a linear drive mechanism is provided at the top of the stirring drum (50); the linear drive mechanism drives the second stirring shaft (53) to move linearly along the drive groove (54); a water pump (57) is fixedly installed on the support base (2); a first conveying pipe (58) and a second conveying pipe (59) are fixedly installed on the water pump (57); the second conveying pipe (59) is connected to the bottom of the stirring drum (50); a connector (60) is fixedly installed on the first conveying pipe (58); the number of connectors (60) is equal to the number of nozzles (6) installed on the fixed base (4); the nozzles (6) and the connectors (60) are connected by hoses.

5. The tunnel pre-cutting groove equipment according to claim 4, characterized in that, The linear drive mechanism includes a motor (61), a spring (62), and a cam (63); a drive disc (64) is fixedly installed on one side of the stirring shaft (53) extending out of the stirring cylinder (50); the spring (62) is fitted between the drive disc (64) and the stirring cylinder (50) on the stirring shaft (53); the motor (61) is fixedly connected to the stirring cylinder (50); the motor (61) is fixedly installed on the stirring cylinder (50); the cam (63) is fixedly installed on the motor (61); the cam (63) abuts against the drive disc (64).

6. The tunnel pre-cutting groove equipment according to claim 5, characterized in that, The stirring plate (56) is uniformly distributed with through holes (65).

7. The tunnel pre-cutting equipment according to claim 1, characterized in that, The support base (2) is fixedly mounted with motor six (66); the fixed base (4) is mounted on the shaft of motor six (66).

8. The tunnel pre-cutting groove equipment according to claim 1, characterized in that, Includes a guide rail (3); the support base (2) is capable of moving linearly along the guide rail (3); the bottom of the guide rail (3) is rotatably connected to a roller; both the guide rail (3) and the support base (2) are fixedly mounted with hydraulic push rods (67); the guide rail (3) is fixedly mounted with wheels.

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