Tunnel grooving machine

Abstract

The invention relates to the technical field of tunnel excavation devices, and discloses a tunnel grooving machine which comprises a walking mechanism, an adjusting mechanism, a rotation driving mechanism and a cutting mechanism, the walking mechanism is used for walking to a grooving position, and the adjusting mechanism is used for adjusting the rotation center position of the cutting mechanism. The rotation driving mechanism is used for driving the cutting mechanism to rotate along the rotation center; the cutting mechanism comprises a rotating frame, a lead screw, a guide rod, a lead screw motor and a knife rest, the lower end of the rotating frame is mounted on the adjusting mechanism, a knife rest mounting frame is arranged at the upper end of the rotating frame, and the two ends of the lead screw are rotationally connected with the knife rest mounting frame; according to the tunnel grooving machine, the problems that when a water mill drill is used for excavating a tunnel, the water mill drill needs to be manually operated to repeatedly cut points one by one along a circular track, the footage is extremely slow, and time and labor are wasted in operation are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel excavation devices, in particular to a tunnel slotting machine. Background Art

[0002] There are three main methods for tunnel excavation:

[0003] 1. Traditional blasting: It causes great disturbance to mountain rocks, is extremely risky, has serious over-excavation and under-excavation, is highly polluting, has high operating and investment costs, and is difficult to operate.

[0004] 2. Cantilever TBM: This machine creates minimal disturbance to the mountain rock, offers minimal risk, and offers excellent control over overbreak and underbreak. However, it has a very high failure rate and high operating and investment costs. It is suitable only for soft rock. It cannot operate in harder rock and is extremely difficult to operate. This machine is not specifically designed for tunneling, but is primarily used in coal mines.

[0005] 3. Shield machine: It causes minimal disturbance to mountain rocks, has low risk, and has excellent control over over-excavation and under-excavation. However, its operation and investment costs are extremely high. The machine body is too bulky to be widely used, and it is extremely difficult to operate.

[0006] 4. Water-grinding drill: This method of tunneling minimally disturbs the mountain rock, reduces risk, offers excellent control over over-excavation and under-excavation, and offers low operating and investment costs. However, the equipment has a high failure rate and extremely slow penetration. Water-grinding drills use a small-diameter cutting drum to rotate at high speed, creating a circular cut in the soil. This cut is performed along a circular trajectory, allowing for the subsequent removal of the soil in the middle of the circular cut. This method of tunneling requires manual operation, which involves repeatedly cutting point by point along the circular trajectory. This results in extremely slow penetration and is time-consuming and labor-intensive. Summary of the Invention

[0007] The object of the present invention is to provide a tunnel slotting machine to solve at least one of the above problems existing in the prior art.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A tunnel slotting machine comprises a traveling mechanism, an adjusting mechanism, a rotary drive mechanism and a cutting mechanism, wherein the traveling mechanism is used to travel to a slotting position, the adjusting mechanism is used to adjust the position of the rotation center of the cutting mechanism, and the rotary drive mechanism is used to drive the cutting mechanism to rotate along the rotation center;

[0010] The cutting mechanism includes a rotating frame, a screw rod, a guide rod, a screw motor and a tool holder, the lower end of the rotating frame is installed on the adjusting mechanism, the upper end of the rotating frame is provided with a tool holder mounting frame, the two ends of the screw rod are rotatably connected to the tool holder mounting frame, the two ends of the guide rod are fixedly connected to the tool holder mounting frame, the screw rod and the guide rod are arranged in parallel and both extend toward the front, the two ends of the tool holder are respectively slidably matched with the corresponding guide rod, the screw rod is threadedly connected with a screw nut, the screw nut is fixedly connected to the tool holder, and the screw motor drives the screw rod to rotate;

[0011] A plurality of cutter disc assemblies are provided at the front end of the tool holder, and the rotating frame drives the plurality of cutter disc assemblies to move along a circular trajectory.

[0012] According to the technical solution, as the depth of tunnel excavation continues to increase, the walking mechanism can adjust the position of the slotting machine; since the adjusting mechanism is used to adjust the rotation center position of the cutting mechanism, the accuracy of the slotting position can be improved; since the rotary drive mechanism is used to drive the cutting mechanism to rotate along the rotation center, during this process, the cutting mechanism can perform circular slotting; since the lower end of the rotating frame is installed on the adjusting mechanism, the adjusting mechanism can adjust the rotation center position of the rotating frame, and the upper end of the rotating frame is provided with a tool holder mounting frame, it is convenient to install the mechanism for driving the tool holder to move back and forth; since the two ends of the screw rod are rotatably connected to the tool holder mounting frame, the two ends of the guide rod are fixedly connected to the tool holder mounting frame, the screw rod and the guide rod are arranged in parallel and both extend forward, and the two ends of the tool holder are respectively slidably matched with the corresponding guide rods, and a screw rod nut is threadedly connected to the screw rod, and the screw rod nut is fixedly connected to the tool holder The screw motor drives the screw to rotate, and multiple cutter disc assemblies are provided at the front end of the tool holder. The rotating frame drives the multiple cutter disc assemblies to move along a circular trajectory. During specific operation, the rotary drive mechanism drives the cutting mechanism to rotate along the rotation center while the screw motor drives the screw to rotate. The screw drives the tool holder to move along the guide rod through the screw nut. In this process, the tool holder gradually moves forward to drive the cutter disc assembly to move forward step by step. The trajectory of the circumferential rotation of the cutter disc assembly determines the size of the tunnel. In the process of continuous circumferential rotation, the cutter disc assembly gradually advances toward a deeper position in the soil layer, so that the walking trajectory of the cutter disc assembly in the soil layer is similar to the spiral advancement method, and the cutting depth continues to deepen, so that continuous circular trajectory grooving can be performed, and there is no need to manually use a water-grinding drill to repeatedly cut the soil in small sizes. The entire grooving process has a high degree of automation, high work efficiency, and saves time and effort.

[0013] Furthermore, the cutter disc assembly includes multiple coaxially arranged cutter discs, the rotation axis A of the cutter disc is perpendicular to the rotation axis B of the rotating frame, the radius of the circular motion trajectory of any cutter disc is different, and the circular motion trajectory paths of all cutter discs are connected to each other to achieve a residue-free cutting path.

[0014] In this technical solution, the rotating frame drives multiple cutter disc assemblies to move along a circular trajectory, and the rotating frame is used to drive the cutter disc assembly along a circular trajectory. Since the cutter disc assembly includes multiple coaxially arranged cutter discs, that is, the cutter discs are installed in layers, the rotation axis A of the cutter disc is perpendicular to the rotation axis B of the rotating frame, and the cutter disc rotates about the rotation axis A. While the cutter disc rotates, the multiple cutter discs installed in layers move in a circular trajectory about the same rotation axis B. In this process, the circumferential trajectories of different cutter discs are different, so as to achieve cutting with different circumferential trajectories of multiple cutter discs. Even when a single cutter disc is thin, a wider range of annular cutting grooves can be cut to facilitate the subsequent removal of the soil in the middle of the annular cutting groove. A single cutter disc is thin and has a small cutting surface, which can improve the smoothness of soil cutting and improve cutting efficiency. Since the radius of the circular motion trajectory of any cutter disc of the multiple cutter disc assemblies is different, the number of cutter discs can be increased as much as possible to cut annular cutting grooves with a wider width, which is more conducive to the removal of the soil in the middle of the annular cutting groove. Since the circular motion paths of all cutter discs are interconnected to achieve a residue-free cutting path, the cutting groove is cleaner and the inner wall of the tunnel is smoother. There is no need to clean the tunnel wall after cutting, which improves the tunnel excavation progress and work efficiency.

[0015] Furthermore, it also includes a cutter disc drive assembly, the tool holder is provided with a plurality of hollow arms extending forward, the plurality of hollow arms are spaced apart along the cutting track, the cutter disc assembly is arranged at the front end of the hollow arm, the cutter disc drive assembly includes a first synchronous wheel, a second synchronous wheel, a synchronous belt and a cutter head motor, the synchronous belt crosses the two ends of the hollow arm and is respectively connected to the first synchronous wheel and the second synchronous wheel, the first synchronous wheel is rotatably connected to the free end of the hollow arm, a plurality of cutter discs are coaxially fixed on the first synchronous wheel, the cutter head motor is arranged on the tool holder, and the cutter head motor drives the second synchronous wheel to rotate.

[0016] The hollow arm facilitates the installation of the cutter disc assembly. The synchronous wheel drive allows the cutter head motor to be installed away from the cutter disc assembly, facilitating subsequent use and maintenance without affecting the drive of the cutter disc assembly.

[0017] Furthermore, a water cooling pipe is provided on the tool holder near the hollow arm, and the water cooling pipe is connected to the water source for cooling the cutter disc assembly; a suction pipe is provided on the tool holder, and the suction pipe is connected to the suction mechanism for discharging the material generated in the cutting groove.

[0018] Furthermore, to enhance the overall structural stability of the tool holder, the tool holder is designed as a curved tool holder and includes a curved connecting plate. The curved connecting plate matches the curvature of the curved tool holder. The multiple hollow arms, water-cooling tube, and suction pipe are all fixedly connected to the curved connecting plate near their free ends. The curved connecting plate also functions by cooperating with the cutting notch to form a more enclosed space, facilitating suction and discharge.

[0019] Furthermore, the adjustment mechanism includes an adjustment frame, an upper double-rod oil cylinder, a lower double-rod oil cylinder, an upper adjustment oil cylinder, a lower adjustment oil cylinder, a lifting oil cylinder, a fixing seat and a top oil cylinder, the piston rod of the upper double-rod oil cylinder is fixed to the upper end of the adjustment frame, the upper sliding cylinder of the upper double-rod oil cylinder is rotatably connected to an upper rotating flange, the piston rod of the lower double-rod oil cylinder is fixed to the lower end of the adjustment frame, and the lower sliding cylinder of the lower double-rod oil cylinder is rotatably connected to a lower rotating flange;

[0020] The upper adjustment cylinder is arranged between the upper sliding cylinder and the upper rotating flange, and the lower adjustment cylinder is arranged between the lower sliding cylinder and the lower rotating flange. The upper adjustment cylinder and the lower adjustment cylinder synchronously drive the upper rotating flange and the lower rotating flange to rotate along the Y axis;

[0021] A lifting slide shaft is provided between the upper rotating flange and the lower rotating flange, a lifting slide sleeve is provided on the lifting slide shaft, a lifting frame is provided on the lifting slide sleeve, the lifting cylinder drives the lifting frame to move up and down, a fixed plate is provided at one end of the lifting frame, and the lower end of the rotating frame is mounted on the fixed plate;

[0022] The lower end of the adjusting frame is rotatably connected to the fixing seat at an X-axis, and the top oil cylinder drives the adjusting frame to rotate along the X-axis.

[0023] When the cam is in the state of being moved up and down, the cam can move relative to the lower gear of the gear train, thereby making the cam and the gear train move relative to each other more stable, and the cam can move relative to each other more stably, and the cam can move relative to each other more stably, so that the cam can move relative to each other more stably. The adjustment of the rotation angle of the upper and lower rotating flanges along the Y axis is used to compensate for the direction of the angle formed by the upper and lower rotating flanges and the X axis; since a lifting slide shaft is provided between the upper and lower rotating flanges, a lifting slide shaft is provided on the lifting slide shaft, and a lifting frame is provided on the lifting sleeve, the lifting cylinder drives the lifting frame to move up and down, and a fixed plate is provided at one end of the lifting frame. The fixed plate is used to install the cutting mechanism, and the lifting frame is driven to move up and down by the lifting cylinder to drive the cutting mechanism to adjust the position of the Y direction, thereby realizing the adjustment of the rotation center position of the cutting mechanism in the Y direction; since the lower end of the adjusting frame is rotatably connected to the fixed seat on the X axis, the top cylinder drives the adjusting frame to rotate along the X axis, and the overall drive of the adjusting frame by the top cylinder can compensate for the direction of the angle formed by the rotation center position and the Y axis.

[0024] In summary, this technical solution, by adjusting the rotation center position of the cutting mechanism in the XY direction and coordinating the angle compensation rotation, can meet the effect of small-range three-axis adjustment to a certain extent, and can achieve accurate positioning of the rotation center position of the cutting mechanism, thereby improving the accuracy of the tunnel grooving position.

[0025] Furthermore, the rotary drive mechanism includes a rotary motor, an outer ring, an inner gear ring and a gear. The rotary motor is arranged on the outside of the fixed disk, the outer ring is coaxially fixed on the inner side of the fixed disk, the inner gear ring is coaxially arranged inside the outer ring and the two are rotatably matched. The inner gear ring is fixedly connected to the lower end of the rotating frame, the gear is meshed with the inner gear ring, and the rotary motor drives the gear to rotate.

[0026] The rotary motor drives the gear to rotate, the gear drives the inner gear ring to rotate, and the inner gear ring drives the rotating frame to rotate, which can provide the rotating frame with continuous and stable rotation power.

[0027] Furthermore, a first rotary joint is provided in the middle of the fixed plate, a second rotary joint is provided inside the first rotary joint, the first rotary joint is connected to the water cooling pipe and the oil supply pipeline, and the second rotary joint is connected to the suction pipe.

[0028] The first rotary joint allows the water cooling pipe and the oil supply pipe to cooperate with the movement of the rotating frame without affecting the operation of the water and oil circuits. The second rotary joint allows the suction pipe to cooperate with the movement of the rotating frame without affecting the suction operation.

[0029] Furthermore, the traveling mechanism includes a frame, and the frame is provided with front wheels and rear wheels. The front wheels are driven by a hydraulic motor, and both ends of the front wheels and rear wheels are provided with annular grooves matching the track, so that the vehicle can travel along the track. When it is not necessary to travel along the track, the arc-shaped wheel bodies between the annular grooves are in contact with the ground, so that the vehicle can travel directly in the tunnel.

[0030] A steering cylinder is provided on the frame, and the steering cylinder is used to drive the front wheels to steer;

[0031] In order to maintain the center of rotation in the working state, working balance arms and central oil cylinders are symmetrically provided on both sides of the middle part of the frame. One end of the working balance arm is rotatably connected to the frame, and the central oil cylinder is used to drive the working balance arm to rotate to the expanded state until the support wheel provided at the end of the working balance arm is supported on the tunnel wall.

[0032] In order to improve the walking stability of the slotting machine, a walking balance arm and a tail cylinder are symmetrically provided on both sides of the rear end of the frame. One end of the walking balance arm is rotatably connected to the frame, and the tail cylinder is used to drive the walking balance arm to rotate to a lowered state until the auxiliary walking wheel provided at the end of the walking balance arm is supported on the ground.

[0033] The beneficial effects of the present invention are as follows: according to the technical solution, as the depth of tunnel excavation continues to increase, the walking mechanism can adjust the position of the slotting machine; since the adjusting mechanism is used to adjust the rotation center position of the cutting mechanism, the accuracy of the slotting position can be improved; since the rotary drive mechanism is used to drive the cutting mechanism to rotate along the rotation center, during this process, the cutting mechanism can perform annular slotting; since the lower end of the rotating frame is installed on the adjusting mechanism, the adjusting mechanism can adjust the rotation center position of the rotating frame, and the upper end of the rotating frame is provided with a tool holder mounting frame, which is convenient for the installation of the mechanism for driving the tool holder to move back and forth; since the two ends of the screw rod are rotatably connected to the tool holder mounting frame, the two ends of the guide rod are fixedly connected to the tool holder mounting frame, the screw rod and the guide rod are arranged in parallel and both extend forward, and the two ends of the tool holder are respectively slidably matched with the corresponding guide rods, and a screw rod nut is threadedly connected to the screw rod, and the screw rod nut is connected to the tool holder The frame is fixedly connected, the screw motor drives the screw to rotate, and multiple cutter disc assemblies are provided at the front end of the tool holder, and the rotating frame drives the multiple cutter disc assemblies to move along a circular trajectory. During specific operation, the rotary drive mechanism drives the cutting mechanism to rotate along the rotation center while the screw motor drives the screw to rotate. The screw drives the tool holder to move along the guide rod through the screw nut. In this process, the tool holder gradually moves forward to drive the cutter disc assembly to move forward step by step. The trajectory of the circumferential rotation of the cutter disc assembly determines the size of the tunnel. In the process of continuous circumferential rotation, the cutter disc assembly gradually advances toward a deeper position in the soil layer, so that the walking trajectory of the cutter disc assembly in the soil layer is similar to the spiral advancement method, and the cutting depth continues to deepen, so that continuous circular trajectory grooving can be performed, and there is no need to manually use a water-grinding drill to repeatedly cut the soil in small sizes. The entire grooving process has a high degree of automation, high work efficiency, and saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of the present invention from a first viewing angle;

[0035] Figure 2 It is a structural schematic diagram of the second viewing angle of the present invention;

[0036] Figure 3 It is a schematic diagram of the local structure of the present invention;

[0037] Figure 4 A schematic diagram of the cutting mechanism of the present invention cutting along a circular motion trajectory;

[0038] Figure 5 for Figure 4 Schematic diagram of the partially enlarged structure;

[0039] Figure 6 for Figure 5 Schematic diagram of the local enlarged structure at A in the middle;

[0040] Figure 7This is a schematic structural diagram of the cutting mechanism of the present invention from a first perspective;

[0041] Figure 8 for Figure 7 Schematic diagram of the local enlarged structure at B in the middle;

[0042] Figure 9 A schematic structural diagram of the cutting mechanism of the present invention from a second perspective;

[0043] Figure 10 3 is a schematic structural diagram of the cutting mechanism of the present invention from a third perspective;

[0044] Figure 11 It is a structural schematic diagram of some components of the cutting mechanism and the rotary drive mechanism in the present invention;

[0045] Figure 12 This is a schematic structural diagram of some components of the cutting mechanism of the present invention from a first perspective;

[0046] Figure 13 This is a schematic structural diagram of some components of the cutting mechanism of the present invention from a second viewing angle;

[0047] Figure 14 for Figure 13 Schematic diagram of the local enlarged structure at C in the middle;

[0048] Figure 15 It is a structural schematic diagram of the annular cutting groove and the middle soil body in the present invention;

[0049] Figure 16 Schematic diagram of the structure of the adjustment mechanism of the present invention;

[0050] Figure 17 It is a schematic diagram of the partial structure of the front wheel part in the present invention.

[0051] In the figure: rotating frame 1; cutter disc assembly 2; first cutter disc assembly 2.1; second cutter disc assembly 2.2; third cutter disc assembly 2.3; fourth cutter disc assembly 2.4; circular motion trajectory 3; cutter disc 4; cutter disc A 4.1; cutter disc B 4.2; outer cutter disc 4.3; inner cutter disc 4.4; screw 5; guide rod 6; screw motor 7; tool holder 8; rotation center 9; tool holder mounting frame 10; hollow arm 11; first synchronous wheel 12; second synchronous wheel 13; cutter head motor 14; water cooling pipe 15; suction pipe 16; fixed plate 17; first rotary joint 18; second rotary joint 19; rotary motor 20; outer ring 21; inner ring gear 22; gear 23; arc-shaped connecting plate 24; cutter head mounting seat 25; connecting shaft 26; blade 27; screw nut 28; annular cutting groove 29; middle soil body 30; suction mechanism 31; adjusting frame 32; upper double-rod cylinder 33; lower double-rod cylinder 34; upper adjusting cylinder 35; lower adjusting cylinder 36; lifting cylinder 37; fixing seat 38; top cylinder 39; upper sliding cylinder 40; upper rotating flange 41; lower sliding cylinder 42; lower rotating flange 43; Y-axis 44; lifting slide shaft 45; lifting sleeve 46; lifting frame 47; X-axis 48; frame 49; front wheel 50; rear wheel 51; hydraulic motor 52; annular groove 53; arc wheel body 54; steering cylinder 55; working balance arm 56; middle cylinder 57; support wheel 58; walking balance arm 59; tail cylinder 60; auxiliary walking wheel 61; screw rod protection cylinder 62; strip hole 63. DETAILED DESCRIPTION

[0052] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly introduced below in conjunction with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0053] Example 1:

[0054] like Figures 1-17 As shown, this embodiment provides a tunnel slotting machine, including a traveling mechanism, an adjusting mechanism, a rotary drive mechanism, and a cutting mechanism. The traveling mechanism is used to travel to a slotting position, the adjusting mechanism is used to adjust the position of a rotation center 9 of the cutting mechanism, and the rotary drive mechanism is used to drive the cutting mechanism to rotate along the rotation center 9.

[0055] The cutting mechanism includes a rotating frame 1, a screw rod 5, a guide rod 6, a screw motor 7 and a tool holder 8. The lower end of the rotating frame 1 is installed on the adjusting mechanism, and the upper end of the rotating frame 1 is provided with a tool holder mounting frame 10. The two ends of the screw rod 5 are rotatably connected to the tool holder mounting frame 10, and the two ends of the guide rod 6 are fixedly connected to the tool holder mounting frame 10. The screw rod 5 and the guide rod 6 are arranged in parallel and both extend toward the front. The two ends of the tool holder 8 are respectively slidably matched with the corresponding guide rod 6. A screw nut 28 is threadedly connected to the screw rod 5, and the screw nut 28 is fixedly connected to the tool holder 8. The screw motor 7 drives the screw rod 5 to rotate. Specifically, as shown in FIG. Figure 3 As shown, a screw rod protection cylinder 62 is provided on the tool holder mounting frame 10, and a strip hole 63 is provided on the side of the screw rod protection cylinder 62. The screw rod 5 is located in the screw rod protection cylinder 62, and one end of the screw rod nut 28 extending out of the strip hole 63 is fixedly connected to the tool holder 8;

[0056] A plurality of cutter disc assemblies 2 are provided at the front end of the tool holder 8, and the rotating frame 1 drives the plurality of cutter disc assemblies 2 to move along a circular trajectory.

[0057] In the present technical solution, as the depth of tunnel excavation continues to increase, the walking mechanism can adjust the position of the slotting machine; since the adjusting mechanism is used to adjust the position of the rotation center 9 of the cutting mechanism, the accuracy of the slotting position can be improved; since the rotary drive mechanism is used to drive the cutting mechanism to rotate along the rotation center 9, during this process, the cutting mechanism can perform annular slotting; since the lower end of the rotating frame 1 is installed on the adjusting mechanism, the adjusting mechanism can adjust the position of the rotation center 9 of the rotating frame 1, and the upper end of the rotating frame 1 is provided with a tool holder mounting frame 10, which is convenient for the installation of the mechanism for driving the tool holder 8 to move back and forth; since the two ends of the screw rod 5 are rotatably connected to the tool holder mounting frame 10, the two ends of the guide rod 6 are fixedly connected to the tool holder mounting frame 10, the screw rod 5 and the guide rod 6 are arranged in parallel and both extend forward, and the two ends of the tool holder 8 are respectively slidably matched with the corresponding guide rod 6, and a screw nut 28 is threadedly connected to the screw rod 5, and the screw nut 28 is fixed to the tool holder 8 Fixed connection, the screw motor 7 drives the screw rod 5 to rotate, and the front end of the tool holder 8 is provided with multiple cutter disc assemblies 2. The rotating frame 1 drives the multiple cutter disc assemblies 2 to move along the circumferential trajectory. During specific operation, the rotary drive mechanism drives the cutting mechanism to rotate along the rotation center 9. At the same time, the screw motor 7 drives the screw rod 5 to rotate, and the screw rod 5 drives the tool holder 8 to move along the guide rod 6 through the screw nut 28. In this process, the tool holder 8 gradually moves forward to drive the cutter disc assembly 2 to advance forward step by step. The trajectory of the circumferential rotation of the cutter disc assembly 2 determines the size of the tunnel. In the process of continuous circumferential rotation, the cutter disc assembly 2 gradually advances toward a deeper position in the soil layer, so that the walking trajectory of the cutter disc assembly 2 in the soil layer is similar to the spiral advancement method, and the cutting depth continues to deepen, so that continuous circular trajectory grooving can be performed, and there is no need to manually use a water-grinding drill to repeatedly cut the soil in small sizes. The entire grooving process has a high degree of automation, high work efficiency, and saves time and effort.

[0058] Example 2:

[0059] This embodiment is optimized based on the above embodiment 1.

[0060] like Figure 4-Figure 8 The cutter disc assembly 2 includes multiple coaxially arranged cutter discs 4. The rotation axis A of the cutter disc 4 is perpendicular to the rotation axis B of the rotating frame 1. The radius of the circular motion trajectory 3 of any cutter disc 4 is different, and the circular motion trajectory 3 paths of all cutter discs 4 are connected to each other to achieve a cutting path without residue.

[0061] After the water-grinding drill excavates the tunnel, there is a lot of residual soil at the location of the circular groove, which needs to be manually cleaned later, affecting the excavation progress and efficiency of the entire tunnel.

[0062] In this technical solution, the rotating frame 1 drives the multiple cutter disc assemblies 2 to move along a circular trajectory, and the circular trajectory driving of the cutter disc assembly 2 is achieved through the rotating frame 1. Since the cutter disc assembly 2 includes multiple coaxially arranged cutter discs 4, that is, the cutter discs 4 are installed in layers, the rotation axis A of the cutter disc 4 is perpendicular to the rotation axis B of the rotating frame 1, and the cutter disc 4 rotates about the rotation axis A. While the cutter disc 4 rotates, the multiple cutter discs 4 installed in layers perform circular trajectory movement about the same rotation axis B. In this process, the circumferential trajectories of different cutter discs 4 are different, so as to achieve cutting of different circumferential trajectories of multiple cutter discs 4. Even when a single cutter disc 4 is thin, a wider range of annular cutting grooves 29 can be cut to facilitate the subsequent removal of the soil 30 in the middle of the annular cutting groove 29. The single cutter disc 4 is thin and has a small cutting surface, which can improve the smoothness of soil cutting and improve cutting efficiency. Because the radii of the circular motion paths 3 of each cutterhead 4 in the multiple cutterhead assemblies 2 are different, the number of cutterheads 4 can be increased as much as possible to cut a wider annular cutting groove 29, which is more conducive to removing the soil 30 in the middle of the annular cutting groove 29. Because the circular motion paths 3 of all cutterheads 4 are interconnected to achieve a residue-free cutting path, the cutting groove is cleaner and the tunnel inner wall is smoother. There is no need to clean the tunnel wall after cutting, which improves the tunnel excavation progress and work efficiency.

[0063] Specifically, the plurality of cutterhead assemblies 2 are sequentially a first cutterhead assembly 2.1, a second cutterhead assembly 2.2, a third cutterhead assembly 2.3 and a fourth cutterhead assembly 2.4, and the distances R from the first cutterhead assembly 2.1, the second cutterhead assembly 2.2, the third cutterhead assembly 2.3 and the fourth cutterhead assembly 2.4 to the rotation axis B gradually increase;

[0064] The cutter disc 4 on the first cutter disc assembly 2.1 and the third cutter disc assembly 2.3 is both cutter disc A 4.1, and the cutter disc 4 on the second cutter disc assembly 2.2 and the fourth cutter disc assembly 2.4 is both cutter disc B 4.2. The circular motion trajectories 3 of the cutter disc A 4.1 on the first cutter disc assembly 2.1 and the cutter disc B 4.2 on the second cutter disc assembly 2.2 are connected adjacently in sequence; the circular motion trajectories 3 of the cutter disc A 4.1 on the third cutter disc assembly 2.3 and the cutter disc B 4.2 on the fourth cutter disc assembly 2.4 are connected adjacently in sequence.

[0065] The cutter discs 4 on different circular motion trajectories 3 can compensate each other to achieve a seamless cutting and grooving effect, and the annular cutting path produced after cutting has no residue.

[0066] In order to be able to arrange more cutter discs 4 with different circular motion trajectories 3 and connect the trajectories with each other, a synchronous wheel is also included. Multiple cutter discs 4 are fixedly connected on both sides of the synchronous wheel. The cutter disc 4 located on the outside of the synchronous wheel is the outer cutter disc 4.3, and the cutter disc 4 located on the inside of the synchronous wheel is the inner cutter disc 4.4.

[0067] It should be noted that the number of cutter disc assemblies shown in the figure is four groups, and in actual implementation it can also be other numbers, greater or less than four groups, and the specific number is not fixed.

[0068] Example 3:

[0069] This embodiment is optimized based on the above embodiment 1.

[0070] It also includes a cutter disc drive assembly, a plurality of hollow arms 11 extending forward are provided on the tool holder 8, and the plurality of hollow arms 11 are spaced apart along the cutting track, the cutter disc assembly 2 is arranged at the front end of the hollow arm 11, and the cutter disc 4 drive assembly includes a first synchronous wheel 12, a second synchronous wheel 13, a synchronous belt and a cutter head motor 14, the synchronous belt crosses the two ends of the hollow arm 11 and is respectively connected to the first synchronous wheel 12 and the second synchronous wheel 13, the first synchronous wheel 12 is rotatably connected to the free end of the hollow arm 11, and the plurality of cutter discs 4 are coaxially fixed on the first synchronous wheel 12, the cutter head motor 14 is arranged on the tool holder 8, and the cutter head motor 14 drives the second synchronous wheel 13 to rotate.

[0071] The hollow arm 11 facilitates installation of the cutter disc assembly 2 and adopts synchronous wheel drive, so that the cutter head motor 14 can be installed at a position away from the cutter disc assembly 2, without affecting the drive of the cutter disc assembly 2 and facilitating subsequent use and maintenance.

[0072] Example 4:

[0073] This embodiment is optimized based on the above embodiment 3.

[0074] A water cooling pipe 15 is provided on the tool holder 8 near the hollow arm 11, and the water cooling pipe 15 is connected to the water source for cooling the cutter disc assembly 2; a suction pipe 16 is provided on the tool holder 8, and the suction pipe 16 is connected to the suction mechanism 31 for discharging the material produced in the cutting groove.

[0075] Example 5:

[0076] This embodiment is optimized based on the above-mentioned embodiment 4.

[0077] To enhance the overall structural stability of the tool holder 8, the tool holder 8 is curved and includes a curved connecting plate 24. The curved connecting plate 24 matches the curvature of the curved tool holder 8. The plurality of hollow arms 11, the water-cooling tube 15, and the suction tube 16 are all fixedly connected to the curved connecting plate 24 near their free ends. The curved connecting plate 24 also functions by cooperating with the cutting notch to form a more enclosed space, which is more conducive to suction and discharge.

[0078] Example 6:

[0079] This embodiment is optimized based on the above embodiment 1.

[0080] like Figure 16 As shown, the adjustment mechanism includes an adjustment frame 32, an upper double-rod oil cylinder 33, a lower double-rod oil cylinder 34, an upper adjustment oil cylinder 35, a lower adjustment oil cylinder 36, a lifting oil cylinder 37, a fixing seat 38 and a top oil cylinder 39. The piston rod of the upper double-rod oil cylinder 33 is fixed to the upper end of the adjustment frame 32, and the upper sliding cylinder 40 of the upper double-rod oil cylinder 33 is rotatably connected to the upper rotating flange 41. The piston rod of the lower double-rod oil cylinder 34 is fixed to the lower end of the adjustment frame 32, and the lower sliding cylinder 42 of the lower double-rod oil cylinder 34 is rotatably connected to the lower rotating flange 43.

[0081] The upper adjustment cylinder 35 is disposed between the upper sliding cylinder 40 and the upper rotating flange 41, and the lower adjustment cylinder 36 is disposed between the lower sliding cylinder 42 and the lower rotating flange 43. The upper adjustment cylinder 35 and the lower adjustment cylinder 36 synchronously drive the upper rotating flange 41 and the lower rotating flange 43 to rotate along the Y-axis 44;

[0082] A lifting slide shaft 45 is provided between the upper rotating flange 41 and the lower rotating flange 43. A lifting sleeve 46 is provided on the lifting slide shaft 45. A lifting frame 47 is provided on the lifting sleeve 46. A lifting cylinder 37 drives the lifting frame 47 to move up and down. A fixed plate 17 is provided at one end of the lifting frame 47. The lower end of the rotating frame 1 is mounted on the fixed plate 17.

[0083] The lower end of the adjustment frame 32 is rotatably connected to the fixing seat 38 at the X-axis 48, and the top oil cylinder 39 drives the adjustment frame 32 to rotate along the X-axis 48. Specifically, the fixing seat 38 is installed on the main beam of the frame 49.

[0084] In this technical solution, since the piston rod of the upper double-rod oil cylinder 33 is fixed to the upper end of the adjusting frame 32, and the piston rod of the lower double-rod oil cylinder 34 is fixed to the lower end of the adjusting frame 32, the adjusting frame 32, the upper double-rod oil cylinder 33 and the lower double-rod oil cylinder 34 can form a stable frame structure; since the upper sliding cylinder 40 of the upper double-rod oil cylinder 33 is rotatably connected to the upper rotating flange 41, and the lower sliding cylinder 42 of the lower double-rod oil cylinder 34 is rotatably connected to the lower rotating flange 43, the upper rotating flange 41 and the lower rotating flange 43 can be adjusted according to the needs of the adjustment frame 32. The upper sliding cylinder 40 and the lower sliding cylinder 42 move along the X direction to adjust the X direction position; since the upper adjusting cylinder 35 is arranged between the upper sliding cylinder 40 and the upper rotating flange 41, and the lower adjusting cylinder 36 is arranged between the lower sliding cylinder 42 and the lower rotating flange 43, the upper adjusting cylinder 35 and the lower adjusting cylinder 36 synchronously drive the upper rotating flange 41 and the lower rotating flange 43 to rotate along the Y axis 44. Through the synchronous action of the upper adjusting cylinder 35 and the lower adjusting cylinder 36, the upper rotating flange can be adjusted. 41 and the lower rotating flange 43 along the Y-axis 44 is adjusted to compensate for the direction of the angle formed by the upper rotating flange 41 and the lower rotating flange 43 and the X-axis 48; since a lifting slide 45 is provided between the upper rotating flange 41 and the lower rotating flange 43, a lifting slide 46 is provided on the lifting slide 45, and a lifting frame 47 is provided on the lifting slide 46, a lifting cylinder 37 drives the lifting frame 47 to move up and down, and a fixed plate 17 is provided at one end of the lifting frame 47. The fixed plate 17 is used to install the cutting mechanism. The lifting frame 47 is driven to move up and down by the lifting cylinder 37, thereby driving the position of the cutting mechanism in the Y direction to adjust the position of the rotation center 9 of the cutting mechanism in the Y direction; since the lower end of the adjusting frame 32 is rotatably connected to the fixed seat 38 on the X-axis 48, the top cylinder 39 drives the adjusting frame 32 to rotate along the X-axis 48. The overall drive of the adjusting frame 32 by the top cylinder 39 can compensate for the direction of the angle formed by the position of the rotation center 9 and the Y-axis 44.

[0085] In summary, this technical solution, by adjusting the position of the rotation center 9 of the cutting mechanism in the XY direction and coordinating the angle compensation rotation, can meet the effect of small-range three-axis adjustment to a certain extent, and can achieve accurate positioning of the position of the rotation center 9 of the cutting mechanism, thereby improving the accuracy of the tunnel grooving position.

[0086] Example 7:

[0087] This embodiment is optimized based on the above embodiment 6.

[0088] The rotary drive mechanism includes a rotary motor 20, an outer ring 21, an inner ring gear 22 and a gear 23. The rotary motor 20 is arranged on the outside of the fixed disk 17, the outer ring 21 is coaxially fixed on the inner side of the fixed disk 17, the inner ring gear 22 is coaxially arranged inside the outer ring 21 and the two are rotated together, the inner ring gear 22 is fixedly connected to the lower end of the rotating frame 1, and the gear 23 is engaged with the inner ring gear 22. The rotary motor 20 drives the gear 23 to rotate.

[0089] The rotary motor 20 drives the gear 23 to rotate, the gear 23 drives the inner ring gear 22 to rotate, and the inner ring gear 22 drives the rotating frame 1 to rotate, thereby providing the rotating frame 1 with continuous and stable rotational power.

[0090] Example 8:

[0091] This embodiment is optimized based on the above-mentioned embodiment 7.

[0092] A first rotary joint 18 is provided in the middle of the fixed plate 17 , a second rotary joint 19 is provided inside the first rotary joint 18 , the first rotary joint 18 is connected to the water cooling pipe 15 and the oil supply pipeline, and the second rotary joint 19 is connected to the suction pipe 16 .

[0093] The first rotary joint 18 allows the water cooling pipe 15 and the oil supply pipe to cooperate with the movement of the rotating frame 1 without affecting the operation of the water and oil circuits. The second rotary joint 19 allows the suction pipe 16 to cooperate with the movement of the rotating frame 1 without affecting the suction operation.

[0094] In order to facilitate the installation of the cutter head and improve the cutting effect of the cutter head, a cutter head mounting seat 25 is provided at the end of the hollow arm 11, and the first synchronous wheel 12 is located in the cutter head mounting seat 25. The two ends of the first synchronous wheel 12 have connecting shafts 26, and multiple cutter discs 4 are fixedly installed on the connecting shafts 26 in layers. Multiple blades 27 are evenly arranged circumferentially on the cutter disc 4.

[0095] Example 9:

[0096] This embodiment is optimized based on the above embodiment 1.

[0097] The traveling mechanism includes a frame 49, on which are provided front wheels 50 and rear wheels 51. The front wheels 50 are driven by a hydraulic motor 52. Both ends of the front wheels 50 and the rear wheels 51 are provided with annular grooves 53 that match the tracks. The annular grooves 53 allow the vehicle to travel along the tracks. When the vehicle does not need to travel along the tracks, the arc-shaped wheel bodies 54 between the annular grooves 53 contact the ground, allowing the vehicle to travel directly in the tunnel.

[0098] A steering cylinder 55 is provided on the frame 49, and the steering cylinder 55 is used to drive the front wheel 50 to steer;

[0099] In order to maintain the position of the rotation center 9 in the working state, a working balance arm 56 and a central oil cylinder 57 are symmetrically provided on both sides of the middle of the frame 49. One end of the working balance arm 56 is rotatably connected to the frame 49, and the central oil cylinder 57 is used to drive the working balance arm 56 to rotate to the expanded state until the support wheel 58 provided at the end of the working balance arm 56 is supported on the tunnel wall.

[0100] In order to improve the walking stability of the slotting machine, a walking balance arm 59 and a tail cylinder 60 are symmetrically provided on both sides of the rear end of the frame 49. One end of the walking balance arm 59 is rotatably connected to the frame 49, and the tail cylinder 60 is used to drive the walking balance arm 59 to rotate to a lowered state until the auxiliary walking wheel 61 provided at the end of the walking balance arm 59 is supported on the ground.

[0101] This equipment is mainly used for removing mountain rocks and digging tunnels; the working balance arm can improve the stability of the equipment's working state; the walking balance arm can assist in propulsion and movement; the adjustment mechanism allows the cutting mechanism to work in the direction of the tunnel design; the cutting mechanism can easily control the grooving depth to prevent the tunnel from being over-excavated or under-excavated; the suction mechanism can promptly remove materials generated during cutting to ensure continuous and stable operation of the equipment.

[0102] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A tunnel slotting machine, characterized in that: It includes a walking mechanism, an adjusting mechanism, a rotating drive mechanism and a cutting mechanism. The walking mechanism is used to walk to the slotting position, the adjusting mechanism is used to adjust the rotation center position of the cutting mechanism, and the rotating drive mechanism is used to drive the cutting mechanism to rotate along the rotation center. The cutting mechanism includes a rotating frame, a screw rod, a guide rod, a screw motor and a tool holder, the lower end of the rotating frame is installed on the adjusting mechanism, the upper end of the rotating frame is provided with a tool holder mounting frame, the two ends of the screw rod are rotatably connected to the tool holder mounting frame, the two ends of the guide rod are fixedly connected to the tool holder mounting frame, the screw rod and the guide rod are arranged in parallel and both extend toward the front, the two ends of the tool holder are respectively slidably matched with the corresponding guide rod, the screw rod is threadedly connected with a screw nut, the screw nut is fixedly connected to the tool holder, and the screw motor drives the screw rod to rotate; A plurality of cutter disc assemblies are provided at the front end of the tool holder, and the rotating frame drives the plurality of cutter disc assemblies to move along a circular trajectory.

2. A tunnel slotting machine according to claim 1, characterized in that: The cutter disc assembly includes multiple coaxially arranged cutter discs, the rotation axis A of the cutter disc is perpendicular to the rotation axis B of the rotating frame, the radius of the circular motion trajectory of each cutter disc is different, and the circular motion trajectory paths of all cutter discs are connected to each other to achieve a residue-free cutting path.

3. The tunnel slotting machine according to claim 1, characterized in that: It also includes a cutter disc drive assembly, the tool holder is provided with a plurality of hollow arms extending forward, the plurality of hollow arms are spaced apart along the cutting track, the cutter disc assembly is arranged at the front end of the hollow arm, the cutter disc drive assembly includes a first synchronous wheel, a second synchronous wheel, a synchronous belt and a cutter head motor, the synchronous belt crosses the two ends of the hollow arm and is respectively connected to the first synchronous wheel and the second synchronous wheel, the first synchronous wheel is rotatably connected to the free end of the hollow arm, a plurality of cutter discs are coaxially fixed on the first synchronous wheel, the cutter head motor is arranged on the tool holder, and the cutter head motor drives the second synchronous wheel to rotate.

4. A tunnel slotting machine according to claim 3, characterized in that: A water cooling pipe is provided on the tool holder near the hollow arm, and the water cooling pipe is connected to the water source for cooling the cutter disc assembly; a suction pipe is provided on the tool holder, and the suction pipe is connected to the suction mechanism for discharging the material generated in the cutting groove.

5. The tunnel slotting machine according to claim 4, characterized in that: The tool holder is an arc-shaped tool holder and also includes an arc-shaped connecting plate. The arc of the arc-shaped connecting plate is consistent with that of the arc-shaped tool holder. Multiple hollow arms, water-cooling pipes and suction pipes are fixedly connected to the arc-shaped connecting plate near the free end.

6. The tunnel slotting machine according to claim 1, characterized in that: The adjusting mechanism includes an adjusting frame, an upper double-rod oil cylinder, a lower double-rod oil cylinder, an upper adjusting oil cylinder, a lower adjusting oil cylinder, a lifting oil cylinder, a fixing seat and a top oil cylinder, the piston rod of the upper double-rod oil cylinder is fixed to the upper end of the adjusting frame, the upper sliding cylinder of the upper double-rod oil cylinder is rotatably connected to an upper rotating flange, the piston rod of the lower double-rod oil cylinder is fixed to the lower end of the adjusting frame, and the lower sliding cylinder of the lower double-rod oil cylinder is rotatably connected to a lower rotating flange; The upper adjustment cylinder is arranged between the upper sliding cylinder and the upper rotating flange, and the lower adjustment cylinder is arranged between the lower sliding cylinder and the lower rotating flange. The upper adjustment cylinder and the lower adjustment cylinder synchronously drive the upper rotating flange and the lower rotating flange to rotate along the Y axis; A lifting slide shaft is provided between the upper rotating flange and the lower rotating flange, a lifting slide sleeve is provided on the lifting slide shaft, a lifting frame is provided on the lifting slide sleeve, the lifting cylinder drives the lifting frame to move up and down, a fixed plate is provided at one end of the lifting frame, and the lower end of the rotating frame is mounted on the fixed plate; The lower end of the adjusting frame is rotatably connected to the fixing seat at an X-axis, and the top oil cylinder drives the adjusting frame to rotate along the X-axis.

7. The tunnel slotting machine according to claim 6, characterized in that: The rotary drive mechanism includes a rotary motor, an outer ring, an inner gear ring and a gear. The rotary motor is arranged on the outside of the fixed disk, the outer ring is coaxially fixed on the inner side of the fixed disk, the inner gear ring is coaxially arranged inside the outer ring and the two are rotatably matched, the inner gear ring is fixedly connected to the lower end of the rotating frame, the gear is meshed with the inner gear ring, and the rotary motor drives the gear to rotate.

8. The tunnel slotting machine according to claim 7, characterized in that: A first rotary joint is provided in the middle of the fixed plate, a second rotary joint is provided inside the first rotary joint, the first rotary joint is connected to the water cooling pipe and the oil supply pipeline, and the second rotary joint is connected to the suction pipe.

9. The tunnel slotting machine according to claim 1, characterized in that: The walking mechanism includes a frame, and the frame is provided with a front wheel and a rear wheel, the front wheel is driven by a hydraulic motor, and both ends of the front wheel and the rear wheel are provided with an annular groove matching the track; A steering cylinder is provided on the frame, and the steering cylinder is used to drive the front wheels to steer; A working balance arm and a central oil cylinder are symmetrically provided on both sides of the middle part of the frame. One end of the working balance arm is rotatably connected to the frame. The central oil cylinder is used to drive the working balance arm to rotate to an extended state until the support wheel provided at the end of the working balance arm is supported on the tunnel wall. A walking balance arm and a tail cylinder are symmetrically provided on both sides of the rear end of the frame. One end of the walking balance arm is rotatably connected to the frame, and the tail cylinder is used to drive the walking balance arm to rotate to a lowered state until the auxiliary walking wheel provided at the end of the walking balance arm is supported on the ground.

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