A translational cutting device for a tunnel cantilever boring machine

Abstract

The present invention discloses a translational cutting device for a tunnel cantilever boring machine, comprising a disc-shaped mounting seat movably mounted on a base, a multi-angle adjustment mechanism installed between the base and the disc-shaped mounting seat, the lower end of the base is connected to the boring machine through a vertical driving oil cylinder, the upper end of the disc-shaped mounting seat is connected to one end of a suspension arm, a gun body is installed at the other end of the suspension arm, a cutting mechanism is installed at the end of the gun body away from the suspension arm, a driving motor or a hydraulic motor is installed on the suspension arm, the output shaft of the driving motor or the hydraulic motor is coaxially connected to one end of a transmission rod, the transmission rod is coaxially rotatably assembled in the gun body, and the other end of the transmission rod is connected to the cutting mechanism. The present invention can effectively increase the cutting working surface, improve the cutting maneuverability, and improve the boring efficiency of the boring machine. The present invention is applicable to the technical field of tunnel boring in tunnel construction.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel construction equipment, and in particular relates to a translational cutting device for a tunnel cantilever boring machine. Background Art

[0002] At present, in the construction of tunnels, it is necessary to use a tunnel boring machine to carry out tunneling operations on the obstructing mountain, etc., until the mountain is opened up. Since the working surface of the drill bit is small during the operation of the tunnel boring machine, the construction efficiency is reduced. Moreover, during tunneling, the drill bit cuts off the rock, causing the drill bit to wear, and at the same time generates a large amount of heat, which further accelerates the wear of the drill bit. In addition, when the rock is cut and crushed, a large amount of dust is generated. Since the working space is small, the dust will diffuse in the entire working space in a short time, affecting the normal construction of the construction personnel, and it is very easy to cause safety accidents. Moreover, the dust will accumulate in the transmission part and / or electrical part of the tunnel boring machine, causing the tunnel boring machine to have an accident and shut down. It can be seen from this that there is an urgent need for a cutting device for a tunnel boring machine to increase the cutting working surface, improve the cutting maneuverability, and improve the tunneling efficiency of the tunnel boring machine. Summary of the invention

[0003] The invention provides a translational cutting device for a tunnel cantilever boring machine, which is used to increase the cutting working surface, improve the cutting maneuverability, and improve the boring efficiency of the boring machine.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0005] A translational cutting device for a tunnel cantilever boring machine comprises a disc-shaped mounting seat movably mounted on a base, a multi-angle adjustment mechanism is installed between the base and the disc-shaped mounting seat, the lower end of the base is connected to the boring machine through a vertical drive cylinder, the upper end of the disc-shaped mounting seat is connected to one end of a suspension arm, a gun body is installed at the other end of the suspension arm, a cutting mechanism is installed at the end of the gun body away from the suspension arm, a drive motor or a hydraulic motor is installed on the suspension arm, the output shaft of the drive motor or the hydraulic motor is coaxially connected to one end of a transmission rod, the transmission rod is coaxially rotatably assembled in the gun body, and the other end of the transmission rod is connected to the cutting mechanism.

[0006] Furthermore, the multi-angle adjustment mechanism includes two groups of drive components symmetrically installed on both sides of the disc-shaped mounting seat, each of the drive components includes two horizontal drive cylinders arranged side by side, the two horizontal drive cylinders are arranged at intervals along the travel direction of the tunnel boring machine, the cylinder bodies of the two horizontal drive cylinders are hinged to the connecting seat, and the cylinder rod of each horizontal drive cylinder is hinged to the corresponding part of the disc-shaped mounting seat.

[0007] Furthermore, a sliding block is installed at the lower end of the connecting seat, and a sliding groove extending laterally along the tunnel boring machine is opened on the base. The sliding block is slidably assembled in the sliding groove. Transverse cylinders are symmetrically arranged on the base and at one end away from the two connecting seats, and the two ends of each of the transverse cylinders are respectively connected to the base and the corresponding connecting seat.

[0008] Furthermore, a pivot ear is constructed at the upper end of the disc-shaped mounting seat, one end of the suspension arm is pivotally connected to the pivot ear, and oblique driving cylinders are respectively arranged on both sides of the suspension arm, and the two ends of each oblique driving cylinder are respectively hinged to the pivot ear and one end of the suspension arm away from the disc-shaped mounting seat.

[0009] Furthermore, the cutting mechanism includes a cutting drill bit coaxially connected to the transmission rod, a spiral cutting blade is constructed on the outer peripheral wall of the cutting drill bit, the spiral cutting blade extends spirally along the axis of the cutting drill bit, and a plurality of cutting teeth are installed on the cutting drill bit.

[0010] Furthermore, a transmission sleeve is coaxially constructed at one end of the cutting drill bit close to the transmission rod, a transfer rod is movably inserted in the transmission sleeve, one end of the transfer rod is fixedly connected to the transmission rod, and the other end of the transfer rod is connected to a first spring installed in the transmission sleeve, two guide bars are symmetrically constructed on the inner wall of the transmission sleeve, each of the guide bars extends along the axial direction of the transmission sleeve, guide grooves are symmetrically opened on the peripheral wall of the transfer rod, and each guide bar is slidably assembled in the corresponding guide groove, a plurality of oblique holes are opened on the cutting drill bit, each of the oblique holes is connected to the transmission sleeve, and a medium entry channel connected to the transmission sleeve is opened on the transfer rod.

[0011] Furthermore, a first assembly chamber, a second assembly chamber, a third assembly chamber and a fracturing channel are sequentially constructed in the cutting drill bit along its axis and in the direction away from the transfer rod. The first spring is assembled in the first assembly chamber, and a pressure cover and a columnar piston are respectively assembled in the second assembly chamber and the third assembly chamber. An opening and closing rod is coaxially constructed at one end of the columnar piston, and the opening and closing rod moves through the pressure cover and extends into the first assembly chamber. The other end of the columnar piston is connected to the second spring installed in the third assembly chamber. A conducting channel is opened in the columnar piston, one end of the conducting channel is connected to the third assembly chamber, and the other end of the conducting channel is connected to the transition channel. A plurality of guide holes connected to the transition channel are opened at one end of the columnar piston close to the pressure cover.

[0012] Furthermore, an opening and closing type spraying mechanism is installed on one end of the gun body close to the cutting mechanism, and the inlet end of the opening and closing type spraying mechanism is connected to a water source through a water pump.

[0013] Furthermore, the opening and closing spray mechanism includes a fixed sleeve connected to a connecting flange fixed on the gun body, the fixed sleeve is mounted on the gun body, and a rotating ring is rotatably connected to one end of the fixed sleeve close to the cutting mechanism. One end of a driving sleeve rotatably mounted on the gun body extends into the fixed sleeve through the rotating ring, and a third spring is arranged in the fixed sleeve, one end of the third spring is fixedly connected to the connecting flange, and the other end of the third spring is rotatably connected to the driving sleeve. A plurality of swirl blades spirally extending along the axis thereof are constructed in the driving sleeve, and a plurality of adjustment spray assemblies are constructed between the driving sleeve and the rotating ring, and these adjustment spray assemblies are evenly arranged along the circumference of the driving sleeve.

[0014] Furthermore, each of the adjustable spray assemblies includes a spray pipe having connecting joints and a spray head respectively connected at both ends, and a plurality of joint shells are evenly constructed on the driving sleeve along its circumference, the joint shells are connected to the driving cavity of the driving sleeve, the connecting joints are movably assembled in the corresponding joint shells, the spray pipe is hinged to one end of the articulated rod, and the other end of the articulated rod is hinged to the rotating ring.

[0015] Since the present invention adopts the above-mentioned structure, compared with the prior art, the technical progress achieved is that: the present invention drives the transmission rod through a driving motor or a hydraulic motor, so that it drives the cutting mechanism to rotate and cut the mountain. The present invention adjusts the relative angle and / or relative lateral position between the disc-shaped mounting seat and the base through a multi-angle adjustment mechanism, and drives the disc-shaped mounting seat and the base to move vertically through a vertical driving cylinder, so that the cutting mechanism on the suspension arm has a wider working surface, avoiding the occurrence of dead angles, and the dead angle position needs to be processed by adjusting the posture of the tunnel boring machine or using other equipment; in this way, the translational cutting device described in the present invention generally only needs to control the advancement of the tunnel boring machine, and at the same time cooperates with the action of the multi-angle adjustment mechanism to achieve the purpose of the cutting mechanism continuously excavating the mountain. In summary, it can be seen that the present invention can effectively increase the cutting working surface, improve the maneuverability of cutting, and improve the excavation efficiency of the tunnel boring machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0017] In the attached picture:

[0018] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0019] Figure 2 It is a structural schematic diagram of another angle of an embodiment of the present invention;

[0020] Figure 3 for Figure 2A magnified view of the structure of the middle A part;

[0021] Figure 4 It is a structural schematic diagram of a cutting mechanism according to an embodiment of the present invention;

[0022] Figure 5 It is an axial structural cross-sectional view of the cutting mechanism according to an embodiment of the present invention;

[0023] Figure 6 It is a partial structural cross-sectional view of the cutting mechanism according to an embodiment of the present invention;

[0024] Figure 7 It is a schematic structural diagram of the connection between the transfer rod and the first spring in the cutting mechanism of the embodiment of the present invention;

[0025] Figure 8 It is a schematic structural diagram of a gland, a partially cut-away cylindrical piston, and a partially cut-away second spring in a cutting mechanism according to an embodiment of the present invention;

[0026] Fig. 9 It is a structural cross-sectional view of the connection between the opening and closing type spray mechanism and the gun body according to an embodiment of the present invention;

[0027] Fig.10 for Fig. 9 A magnified view of the structure of the middle B area;

[0028] Fig.11 It is a schematic diagram of the structure of a partially disassembled opening and closing type spray mechanism according to an embodiment of the present invention;

[0029] Fig.12 It is a schematic structural diagram of the separation of the driving sleeve and one of the spray pipes in the opening and closing spray mechanism of an embodiment of the present invention.

[0030] Labeled parts: 100-disc-shaped mounting seat, 101-seat-shaped body, 102-pivot ear, 200-base, 201-sliding groove, 300-multi-angle adjustment mechanism, 301-horizontal drive cylinder, 302-connecting seat, 303-sliding block, 400-suspension arm, 500-oblique drive cylinder, 600-gun body, 700-driving motor, 800-cutting mechanism, 801-cutting drill bit, 802-spiral cutting blade, 803-cutting tooth, 804-transmission sleeve, 805-adapter rod, 806-medium entry channel, 807-guide strip, 808-guide groove, 809-first assembly chamber, 810-third assembly chamber, 811-fracturing channel, 812-oblique hole, 813-second assembly chamber Matching chamber, 814-first connecting hole, 815-first spring, 816-column piston, 817-transition channel, 818-conducting channel, 819-opening and closing rod, 820-guide hole, 821-pressure cover, 822-assembly hole, 823-second connecting hole, 824-second spring, 900-opening and closing spray mechanism, 901-fixing sleeve, 902-connecting flange, 903-water inlet pipe, 904-water inlet chamber, 905-rotating ring, 906-driving sleeve, 907-driving chamber, 908-swirl blade, 909-joint shell, 910-articulated rod, 911-spray pipe, 912-connecting joint, 913-spray head, 914-spray channel, 915-third spring, 1000-transverse cylinder. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0032] The present invention discloses a translational cutting device for a tunnel cantilever boring machine, such as Figure 1-12As shown, it includes a base 200, a disc-shaped mounting seat 100, a multi-angle adjustment mechanism 300, a suspension arm 400 and a cutting mechanism 800. Among them, the disc-shaped mounting seat 100 is movably mounted on the upper end surface of the base 200, the multi-angle adjustment mechanism 300 is installed between the base 200 and the disc-shaped mounting seat 100, at least one vertical driving cylinder is installed at the lower end of the base 200, and the lower end of each vertical driving cylinder is connected to the tunnel boring machine. The upper end of the disc-shaped mounting seat 100 of the present invention is connected to one end of the suspension arm 400, and the other end of the suspension arm 400 is installed with a gun body 600, and the cutting mechanism 800 is installed at one end of the gun body 600 away from the suspension arm 400. A driving motor 700 or a hydraulic motor is mounted on the suspension arm 400, and the output shaft of the driving motor 700 or the hydraulic motor is coaxially connected with one end of a transmission rod, and the transmission rod is rotatably assembled in the gun barrel 600, and the axis of the transmission rod coincides with the axis of the gun barrel 600, and the other end of the transmission rod is connected to the cutting mechanism 800. The working principle and advantages of the present invention are: the present invention drives the transmission rod through the driving motor 700 or the hydraulic motor, so that it drives the cutting mechanism 800 to rotate and cuts the mountain. The present invention uses a multi-angle adjustment mechanism 300 to adjust the relative angle and / or relative horizontal position of the disc-shaped mounting seat 100 and the base 200, and drives the disc-shaped mounting seat 100 and the base 200 to move vertically through a vertical drive cylinder, so that the cutting mechanism 800 on the suspension arm 400 has a wider working surface, avoiding the occurrence of dead angles, which require adjusting the posture of the tunnel boring machine or using other equipment to deal with the dead angle position; in this way, the translational cutting device described in the present invention generally only needs to control the tunnel boring machine to move forward, and at the same time cooperates with the action of the multi-angle adjustment mechanism 300 to achieve the purpose of the cutting mechanism 800 continuously excavating the mountain. In summary, the present invention can effectively increase the cutting working surface, improve the maneuverability of cutting, and improve the excavation efficiency of the tunnel boring machine.

[0033] As a preferred embodiment of the present invention, Figure 2 , 3As shown, the disc-shaped mounting seat 100 includes a seat-shaped body 101. The multi-angle adjustment mechanism 300 includes two sets of drive components, which are symmetrically installed on both sides of the seat-shaped body 101. Each drive component includes two horizontal drive cylinders 301 arranged side by side, and the two horizontal drive cylinders 301 are arranged at intervals along the travel direction of the tunnel boring machine. The cylinder bodies of the two horizontal drive cylinders 301 are both hinged to the connecting seat 302, and the cylinder rod of each horizontal drive cylinder 301 is hinged to the corresponding part of the disc-shaped mounting seat 100. In this embodiment, a sliding block 303 is installed at the lower end of the connecting seat 302, and a sliding groove 201 is opened on the base 200. The sliding groove 201 extends in the lateral direction of the tunnel boring machine, and the sliding block 303 is slidably assembled in the sliding groove 201. In this embodiment, a transverse oil cylinder 1000 is symmetrically arranged on the base 200 and at one end away from the two connecting seats 302, and the two ends of each transverse oil cylinder 1000 are respectively connected to the base 200 and the corresponding connecting seat 302. The working principle and advantage of this embodiment are: when it is necessary to drive the disc-shaped mounting seat 100 to rotate, the two horizontal driving oil cylinders 301 located on the diagonal sides of the two driving assemblies are controlled to extend synchronously, and the other two horizontal driving oil cylinders 301 in the two driving assemblies are controlled to shorten synchronously, so that the disc-shaped mounting seat 100 rotates a certain angle along its own axis, so that the disc-shaped mounting seat 100 drives the cutting mechanism 800 to rotate a corresponding angle along the axis of the disc-shaped mounting seat 100 through the suspension arm 400, so that the cutting mechanism 800 cuts and crushes the rocks near it, thereby achieving the purpose of excavation. The electromagnets on the two groups of driving components are controlled to be energized so that the two sliding blocks 303 are firmly attracted in the sliding grooves 201 without moving. Then, the two horizontal driving cylinders 301 of one group of driving components are controlled to extend synchronously, and the two horizontal driving cylinders 301 of the other group of driving components are controlled to shorten synchronously, so that the disc-shaped mounting seat 100 moves a certain distance laterally along the base 200, so that the suspension arm 400 drives the cutting mechanism 800 to cut the rocks laterally; when the disc-shaped mounting seat 100 needs to be displaced laterally to a large extent, one of the transverse cylinders 1000 is controlled to extend, and the other transverse cylinder 1000 is controlled to contract, so that the disc-shaped mounting seat 100 moves a certain distance laterally along the base 200, so that the disc-shaped mounting seat 100 drives the suspension arm 400 to move laterally a certain distance. It can be seen from this that the multi-angle adjustment mechanism 300 of the present embodiment can drive the disc-shaped mounting seat 100 to rotate a certain angle, and can also drive the disc-shaped mounting seat 100 to move horizontally a certain distance. In conjunction with the drive of the vertical drive cylinder, the disc-shaped mounting seat 100 drives the cutting mechanism 800 through the suspension arm 400 to perform all-round cutting of the mountain, thereby improving the cutting working surface and the flexibility of the cutting operation.This embodiment indirectly controls the lateral and / or vertical movement of the cutting mechanism 800 by lateral and / or vertical movement of the disc-shaped mounting seat 100, so that the cutting can crush the rocks on the same plane, avoiding the cutting mechanism 800 being subjected to large torque when crushing rocks on different planes, thereby affecting the cutting efficiency, and avoiding the cutting mechanism 800 from equipment failure due to excessive torque.

[0034] As a preferred embodiment of the present invention, Figure 2 As shown, a pivoting ear 102 is constructed at the upper end of the disc-shaped mounting seat 100, and one end of the suspension arm 400 is pivotally connected to the pivoting ear 102. Oblique driving cylinders 500 are respectively arranged on both sides of the suspension arm 400, and both ends of each oblique driving cylinder 500 are respectively hinged to the pivoting ear 102 and one end of the suspension arm 400 away from the disc-shaped mounting seat 100. In this embodiment, the purpose of changing the inclination angle of the suspension arm 400 is achieved by controlling the two oblique driving cylinders 500 to act synchronously, so that the cutting mechanism 800 acts synchronously with the suspension arm 400, and then performs a cutting operation on the rocks near the cutting mechanism 800.

[0035] As a preferred embodiment of the present invention, Figure 4 As shown, the cutting mechanism 800 includes a cutting drill bit 801, which is coaxially connected to the transmission rod. A spiral cutting blade 802 is constructed on the outer peripheral wall of the cutting drill bit 801. The spiral cutting blade 802 extends spirally along the axis of the cutting drill bit 801, and a plurality of cutting teeth 803 are installed on the cutting drill bit 801. The working principle and advantages of this embodiment are: the cutting drill bit 801 of this embodiment rotates with the transmission rod, so that the cutting teeth 803 cut and crush the rocks; the spiral cutting blade 802 efficiently discharges relatively soft soil layers or stone fragments, thereby improving the efficiency of drilling cuttings. It can be seen that the cutting mechanism 800 of this embodiment can drill cuttings from different mountain matrices, thereby improving the efficiency of cutting.

[0036] As a preferred embodiment of the present invention, Figure 4-7As shown, a transmission sleeve 804 is constructed at one end of the cutting drill bit 801 close to the transmission rod, and the axis of the transmission sleeve 804 coincides with the axis of the cutting drill bit 801. A transfer rod 805 is movably inserted in the transmission sleeve 804, one end of which is fixedly connected to the transmission rod, and a first spring 815 is installed in the transmission sleeve 804, and the other end of the transfer rod 805 is connected to the first spring 815. In this embodiment, two guide bars 807 are symmetrically constructed on the inner wall of the transmission sleeve 804, each of which extends along the axial direction of the transmission sleeve 804, and guide grooves 808 are symmetrically opened on the peripheral wall of the transfer rod 805, and each guide bar 807 is slidably assembled in the corresponding guide groove 808. In this embodiment, a plurality of oblique holes 812 are provided on the cutting drill bit 801, each oblique hole 812 is connected to the transmission sleeve 804, and a medium inlet channel 806 is provided on the adapter rod 805, and the medium inlet channel 806 is connected to the transmission sleeve 804. The working principle and advantage of this embodiment are: in this embodiment, the medium (water or air) enters the cutting drill bit 801 through the medium inlet channel 806 in a pulsed manner, thereby driving the cutting drill bit 801 to hammer the working surface, and when the medium pressure decreases, the cutting drill bit 801 gradually returns to its position under the action of the first spring 815, and the medium is discharged from each oblique hole 812 to perform a pressure relief operation; the medium pressure is repeatedly increased and decreased in this way, so that the cutting drill bit 801 reciprocates and hammers the working surface, thereby improving the efficiency of crushing the working surface. Moreover, when the medium is discharged from the oblique hole 812, the surrounding gravel is blown strongly to prevent the gravel from being stuck in the gap of the spiral cutting blade 802 of the cutting drill bit 801. This embodiment can use low-temperature medium to pulse-drive the cutting drill bit 801, so that when the cutting drill bit 801 is performing a cutting operation, the low-temperature medium cools the cutting drill bit 801, thereby preventing the performance of the cutting drill bit 801 from being affected by high temperature.

[0037] As a preferred embodiment of the present invention, Figure 5-8As shown, in this embodiment, a first assembly chamber 809, a second assembly chamber 813, a third assembly chamber 810 and a fracturing channel 811 are sequentially constructed inside the cutting drill bit 801 along its axis and in the direction away from the connecting rod 805. The first assembly chamber 809, the second assembly chamber 813, the third assembly chamber 810 and the fracturing channel 811 are interconnected, and the fracturing channel 811 passes through the end of the cutting drill bit 801 and is connected to the outside. The above-mentioned first spring 815 is assembled in the first assembly cavity 809, and the second assembly cavity 813 and the third assembly cavity 810 are respectively assembled with a pressure cover 821 and a columnar piston 816, an assembly hole 822 is opened at the center of the pressure cover 821, and a plurality of second connecting holes 823 are opened at the end edge of the pressure cover 821, and these second connecting holes 823 are evenly arranged along the circumference of the pressure cover 821; a plurality of first connecting holes 814 are opened at the transition position between the second assembly cavity 813 and the third assembly cavity 810, and these first connecting holes 814 are arranged one-to-one with the above-mentioned plurality of second connecting holes 823; the present embodiment adopts a plurality of fastening bolts to connect the pressure cover 821 and the cutting drill bit 801, that is, the end of each fastening bolt passes through the second connecting hole 823 and is threadedly connected in the corresponding first connecting hole 814. In this embodiment, an opening and closing rod 819 is coaxially constructed at one end of the columnar piston 816, and the opening and closing rod 819 passes through the assembly hole 822, so that the opening and closing rod 819 can move through the pressure cover 821 and extend into the first assembly chamber 809; a second spring 824 is installed in the third assembly chamber 810, and the other end of the columnar piston 816 is connected to the second spring 824. In this embodiment, a conducting channel 818 is opened in the columnar piston 816, one end of which is connected to the third assembly chamber 810, and the other end of the conducting channel 818 is connected to the transition channel 817. A plurality of guide holes 820 are opened at one end of the columnar piston 816 close to the pressure cover 821, and these guide holes 820 are all connected to the transition channel 817.The working principle and advantages of this embodiment are as follows: this embodiment can perform fracturing operation on the working surface, that is, firstly, the cutting drill bit 801 is drilled down to make the cutting drill bit 801 extend into the working surface to a certain depth, and then high-pressure water is passed into the first assembly cavity 809 through the medium entry channel 806. Under this pressure, the high-pressure water cannot drive the opening and closing rod 819 away from the assembly hole 822 of the gland 821. In this way, the high-pressure water is discharged through the oblique hole 812, so that the high-pressure water exerts pressure on the oblique direction of the drill hole in the working surface. Since the hardness of the oblique direction of the drill hole is much lower than the hardness of the vertical direction, the working surface is fracturing. The drilled holes on the surface are gradually fractured outward in the shape of a spider web; when the oblique fracturing is completed, the pressure of the high-pressure water is increased so that the high-pressure water drives the opening and closing rod 819 to move away from the first assembly chamber 809 until the opening and closing rod 819 is completely separated from the assembly hole 822. In this way, the high-pressure water after being pressurized again enters the front end of the third assembly chamber 810, and then enters the conducting channel 818 through the guide hole 820 through the transition channel 817, and then enters the fracturing channel 811 and is discharged from the front end of the cutting drill bit 801, so that the high-pressure water performs vertical fracturing on the working surface to facilitate subsequent cutting operations.

[0038] As a preferred embodiment of the present invention, in order to achieve the purpose of efficient dust reduction and temperature reduction, to prevent dust from spreading throughout the entire working space in a short period of time, affecting the normal construction of construction personnel, and preventing safety accidents and equipment failures, the measures taken are as follows: Figure 9-12As shown, an opening and closing spray mechanism 900 is installed on the gun body 600 and at one end close to the cutting mechanism 800, and the inlet end of the opening and closing spray mechanism 900 is connected to a water source through a water pump. The water source is generally a water storage container such as a water tank or a water storage tank. The opening and closing spray mechanism 900 of this embodiment includes a fixed sleeve 901, a rotating ring 905, a driving sleeve 906, a third spring 915 and a plurality of adjustment spray components. Among them, a connecting flange 902 is constructed on the gun body 600, and the connecting flange 902 extends outward along the radial direction of the gun body 600. One end of the fixing sleeve 901 is detachably connected to the connecting flange 902. The fixing sleeve 901 is mounted on the gun body 600, and a water inlet cavity 904 is formed between the fixing sleeve 901 and the gun body 600. A water inlet pipe 903 is constructed on the connecting flange 902, and the water inlet pipe 903 is connected to the water inlet cavity 904. The rotating ring 905 of this embodiment is rotatably connected to one end of the fixed sleeve 901 close to the cutting mechanism 800, the driving sleeve 906 is sleeved on the gun body 600, and the driving sleeve 906 is rotatably connected to the gun body 600, and a driving chamber 907 is formed between the driving sleeve 906 and the gun body 600, the water inlet chamber 904 and the driving chamber 907 are communicated with each other, and one end of the driving sleeve 906 extends into the fixed sleeve 901 through the rotating ring 905. The third spring 915 of this embodiment is arranged in the fixed sleeve 901, one end of the third spring 915 is fixedly connected to the connecting flange 902, and the other end of the third spring 915 is rotatably connected to the driving sleeve 906. A plurality of swirl blades 908 are constructed on the inner wall of the driving sleeve 906, and these swirl blades 908 are evenly arranged along the circumference of the driving sleeve 906, and each swirl blade 908 extends spirally along the axis of the driving sleeve 906. The multiple adjustment spray assemblies described in this embodiment are constructed between the drive sleeve 906 and the rotating ring 905, and these adjustment spray assemblies are evenly arranged along the circumference of the drive sleeve 906. The specific structure of the adjustment spray assembly of this embodiment is that the adjustment spray assembly includes a spray pipe 911, and the two ends of the spray pipe 911 are respectively connected with a connection joint 912 and a spray head 913, and the spray channel 914 of the spray pipe 911 is respectively connected with the cavity of the connection joint 912 and the spray head 913. In this embodiment, a plurality of joint shells 909 are evenly constructed on the drive sleeve 906 along its circumference, and the joint shells 909 are connected with the drive cavity 907 of the drive sleeve 906. The connection joint 912 of this embodiment is movably assembled in the corresponding joint shell 909, and the spray pipe 911 is hinged to one end of the hinge rod 910, and the other end of the hinge rod 910 is hinged to the rotating ring 905.The working principle and advantages of this embodiment are as follows: this embodiment controls the pressure of the high-pressure water entering the water inlet chamber 904, so that the high-pressure water drives the driving sleeve 906 to move back to the fixed sleeve 901 on the one hand, and the third spring 915 is in a stretched energy storage state. At this time, the inclination angle of the hinged rod 910 changes, so that the hinged rod 910 drives the spray pipe 911 to move, and then the direction of the spray head 913 changes, so that the opening and closing degree of the spray of the opening and closing type spray mechanism 900 changes; at the same time, the high-pressure water acts on the swirl blade 908, so that it drives the driving sleeve 906 to rotate through the swirl blade 908. During the rotation process, the driving sleeve 906 drives all the adjustment spray components to rotate, thereby forming a rotating spray atomized water wall, and by changing the water pressure, the taper of the spray atomized water wall is changed, and the dust reduction range is adjusted, so that it can perform targeted dust reduction operations in environments with different dust levels. This embodiment can intermittently adjust the water pressure so that the drive sleeve 906 drives all the adjustment spray components to maintain an open and closed alternating state, thereby achieving all-round and no-dead-angle removal of dust generated by the cutting mechanism 800, improving the efficiency and effect of dust reduction, and the opening and closing movement of the adjustment spray components can intermittently cool the surface of the cutting mechanism 800, playing a role in auxiliary cooling. The hinged rod 910 of this embodiment is an elastic rod. When the spray pipe 911 is impacted by gravel, the spray pipe 911 drives the elastic rod to deform to a certain extent under the impact, thereby absorbing and offsetting most of the impact force, playing a role in protecting the spray pipe 911.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A translational cutting device for a tunnel boom boring machine, characterized in that: The invention comprises a disc-shaped mounting seat movably mounted on a base, a multi-angle adjustment mechanism is installed between the base and the disc-shaped mounting seat, the lower end of the base is connected to the tunnel boring machine through a vertical driving oil cylinder, the upper end of the disc-shaped mounting seat is connected to one end of a suspension arm, a gun body is installed at the other end of the suspension arm, a cutting mechanism is installed at the end of the gun body away from the suspension arm, a driving motor or a hydraulic motor is installed on the suspension arm, the output shaft of the driving motor or the hydraulic motor is coaxially connected to one end of a transmission rod, and the transmission rod is coaxially rotatably assembled on the gun body The cutting mechanism comprises a cutting drill bit coaxially connected to the driving rod, a spiral cutting blade is constructed on the outer peripheral wall of the cutting drill bit, and the spiral cutting blade extends spirally along the axis of the cutting drill bit, and a plurality of cutting teeth are installed on the cutting drill bit; a transmission sleeve is coaxially constructed at one end of the cutting drill bit close to the driving rod, and a transfer rod is movably inserted in the transmission sleeve, one end of the transfer rod is fixedly connected to the driving rod, and the other end of the transfer rod is connected to a first spring installed in the transmission sleeve Two guide bars are symmetrically constructed on the inner wall of the transmission sleeve, each of which extends along the axial direction of the transmission sleeve. Guide grooves are symmetrically opened on the peripheral wall of the transfer rod, and each guide bar is slidably assembled in the corresponding guide groove. A plurality of oblique holes are opened on the cutting drill bit, each of which is connected to the transmission sleeve. A medium entry channel connected to the transmission sleeve is opened on the transfer rod; a first assembly chamber, a second assembly chamber, a third assembly chamber and a fracturing channel are sequentially constructed in the cutting drill bit along its axis and in the direction opposite to the transfer rod. The first spring assembly A pressure cover and a columnar piston are respectively installed in the first assembly chamber, the second assembly chamber and the third assembly chamber, and an opening and closing rod is coaxially constructed at one end of the columnar piston. The opening and closing rod movably passes through the pressure cover and extends into the first assembly chamber. The other end of the columnar piston is connected to the second spring installed in the third assembly chamber. A conducting channel is opened in the columnar piston, one end of the conducting channel is connected to the third assembly chamber, and the other end of the conducting channel is connected to the transition channel. A plurality of guide holes connected to the transition channel are opened at one end of the columnar piston close to the pressure cover.

2. The translational cutting device for a tunnel boom boring machine according to claim 1, characterized in that: The multi-angle adjustment mechanism includes two sets of drive components symmetrically installed on both sides of the disc-shaped mounting seat, each of the drive components includes two horizontal drive cylinders arranged side by side, and the two horizontal drive cylinders are arranged at intervals along the travel direction of the tunnel boring machine. The cylinder bodies of the two horizontal drive cylinders are hinged to the connecting seat, and the cylinder rod of each horizontal drive cylinder is hinged to the corresponding part of the disc-shaped mounting seat.

3. The translational cutting device for a tunnel boom boring machine according to claim 2, characterized in that: A sliding block is installed at the lower end of the connecting seat, and a sliding groove extending laterally along the tunnel boring machine is opened on the base. The sliding block is slidably assembled in the sliding groove. Transverse cylinders are symmetrically arranged on the base and at one end away from the two connecting seats. The two ends of each transverse cylinder are respectively connected to the base and the corresponding connecting seat.

4. The translational cutting device for a tunnel boom boring machine according to claim 1, characterized in that: A pivot ear is constructed at the upper end of the disc-shaped mounting seat, one end of the suspension arm is pivotally connected to the pivot ear, and oblique driving cylinders are respectively arranged on both sides of the suspension arm, and the two ends of each oblique driving cylinder are respectively hinged to the pivot ear and one end of the suspension arm away from the disc-shaped mounting seat.

5. The translational cutting device for a tunnel boom boring machine according to claim 1, characterized in that: An opening and closing type spraying mechanism is installed on the gun body and at one end close to the cutting mechanism, and the inlet end of the opening and closing type spraying mechanism is connected with a water source through a water pump.

6. The translational cutting device for a tunnel boom boring machine according to claim 5, characterized in that: The opening and closing spray mechanism includes a fixed sleeve connected to a connecting flange fixed on the gun body, the fixed sleeve is mounted on the gun body, and a rotating ring is rotatably connected to one end of the fixed sleeve close to the cutting mechanism. One end of a driving sleeve rotatably mounted on the gun body extends into the fixed sleeve through the rotating ring, and a third spring is arranged in the fixed sleeve, one end of the third spring is fixedly connected to the connecting flange, and the other end of the third spring is rotatably connected to the driving sleeve. A plurality of swirl blades spirally extending along the axis thereof are constructed in the driving sleeve, and a plurality of adjustment spray assemblies are constructed between the driving sleeve and the rotating ring, and these adjustment spray assemblies are evenly arranged along the circumference of the driving sleeve.

7. The translational cutting device for a tunnel boom boring machine according to claim 6, characterized in that: Each of the adjustable spray assemblies comprises a spray pipe having connecting joints and a spray head respectively connected at both ends; a plurality of joint shells are evenly constructed on the driving sleeve along its circumference; the joint shells are connected to the driving cavity of the driving sleeve; the connecting joints are movably assembled in the corresponding joint shells; the spray pipe is hinged to one end of the articulated rod, and the other end of the articulated rod is hinged to the rotating ring.

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