Buffering pipe type anti-gushing spiral conveyor of shield tunneling machine

Abstract

The invention discloses a shield tunneling machine buffer tube type anti-gushing spiral conveyor which comprises a conveying cylinder, a conveying vibration mechanism, a feeding smashing mechanism, an anti-gushing buffering mechanism, an electric control cabinet and a muck conveying mechanism. The conveying cylinder is located at the bottom of a shield tunneling machine cutter head driving mechanism, and the included angle between the conveying cylinder and the horizontal plane of the bottom is 22.5 degrees; a vibration motor is fixedly connected to the bottom of the conveying cylinder, an electric control cabinet is arranged on the right side of the conveying cylinder, and the muck conveying mechanism is arranged at the bottom of the conveying cylinder and used for conveying muck backwards. The feeding smashing mechanism is arranged on the front face of the conveying cylinder, the anti-surging buffering mechanism is arranged at the bottom of the conveying cylinder, and a conveying vibration mechanism is rotationally connected into the conveying cylinder. According to the device, muck bonding can be prevented from affecting the conveying efficiency and muck conveying uniformity, the conveying efficiency and reliability of the device are improved, and the prevention capacity for the muck gushing phenomenon is improved.

Description

Technical Field

[0001] This invention relates to a buffer tube-type anti-surge spiral conveyor for tunnel boring machines, belonging to the technical field of tunnel excavation equipment. Background Technology

[0002] The shield tunneling method refers to a construction method in which a tunnel boring machine (TBM) constructs supporting segments while tunneling. A TBM is a type of tunnel boring machine that uses the shield tunneling method and is a specialized engineering machine for tunnel excavation. In TBM equipment, the screw conveyor is an important piece of equipment for discharging excavated soil. The screw conveyor, also known as a screw conveyor, has the main function of effectively transporting the excavated soil from the cutterhead. At the same time, it maintains the earth pressure balance along the excavation path by controlling the soil conveying speed. The screw conveyor propels and transports materials forward through rotating helical blades, ensuring continuous excavation operations of the TBM. Patent application CN114135310B discloses a TBM anti-surge screw conveyor, which includes an arc-shaped screw conveyor barrel located around the helical blades. The screw conveyor barrel includes multiple buffer chambers connected in sequence, and each buffer chamber consists of a contraction section and an expansion section. The excavation hopper of the screw conveyor barrel is connected to the last expansion section. In Shandong, my country, the underground soil is mainly composed of clay and sandy soil, with some areas containing a large amount of gravel and calcareous nodules. During tunnel excavation, the anti-gushing screw conveyor provided by this patent is prone to excessive accumulation of excavated soil, resulting in uneven discharge. When the soil accumulates to a critical state, a gush occurs, leading to an imbalance of soil pressure at the tunnel boring machine (TBM) excavation face. Furthermore, traditional screw conveyors and gate-type closure blocking mechanisms at the excavation port cannot effectively cope with the disruption of the soil pressure balance caused by instantaneous water seepage, affecting the excavation efficiency and operational safety of the TBM. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a shield tunneling machine buffer tube type anti-gushing screw conveyor in view of the defects of the prior art.

[0004] To solve this technical problem, the present invention provides a shield tunneling machine buffer tube type anti-surge spiral conveyor, including a conveying cylinder, a conveying vibration mechanism, a feeding crushing mechanism, an anti-surge buffer mechanism, an electrical control cabinet, and a slag conveying mechanism. The conveying cylinder is located at the bottom of the shield tunneling machine cutterhead drive mechanism, and the angle between the conveying cylinder and the bottom horizontal plane is 22.5°. A vibration motor is fixedly connected to the bottom of the conveying cylinder. An electrical control cabinet is set on the right side of the conveying cylinder. The slag conveying mechanism is set at the bottom of the conveying cylinder for transporting slag. The feeding crushing mechanism is set on the front of the conveying cylinder, and the anti-surge buffer mechanism is set at the bottom of the conveying cylinder. The conveying vibration mechanism is rotatably connected inside the conveying cylinder.

[0005] The conveying vibration mechanism comprises a transmission screw blade, a screw blade adapter frame and a layered liquid cover, the transmission screw blade comprises a screw blade body, a cooling U-shaped pipe and an ultrasonic vibration rod, the screw blade body is rotationally connected to the inside of the conveying cylinder, a circular disc is fixedly connected to the top of the screw blade body, the back of the circular disc is fixedly connected with the screw blade adapter frame, the back of the screw blade adapter frame is fixedly connected with a speed reducer or a hydraulic motor; the layered liquid cover is arranged on the back of the inner wall of the conveying cylinder; the top of the screw blade body is embedded with the cooling U-shaped pipe, the top and the bottom of the cooling U-shaped pipe are communicated with the top and the bottom of the screw blade body respectively, and the inside of the cooling U-shaped pipe is filled with cooling liquid.

[0006] A circular blind hole is formed in the top of the screw blade body and communicated with the cooling U-shaped pipe, the ultrasonic vibration rod is fixedly connected to the screw blade body through the circular blind hole, and the ultrasonic vibration rod is fixedly connected to the back of the screw blade adapter frame; during the circulation of the cooling liquid, the ultrasonic vibration rod generates high-frequency vibration after being electrified, the high-frequency vibration is transmitted to the surface of the screw blade body through the cooling liquid, and the adhered sludge is promoted to be loose.

[0007] The layered liquid cover comprises a liquid inlet layer and a liquid outlet layer, the liquid inlet layer is fixedly connected to the back of the inner wall of the conveying cylinder, and the liquid outlet layer is fixed to the front of the liquid inlet layer; the inside of the liquid inlet layer is communicated with the top of the cooling U-shaped pipe, the liquid outlet layer is communicated with the bottom of the cooling U-shaped pipe, the top of the liquid inlet layer and the liquid outlet layer is communicated with the top of the conveying cylinder through a circular pipe, and the top of the liquid inlet layer and the liquid outlet layer is communicated with the liquid inlet port and the liquid outlet port of the cooling liquid pump respectively; the external cooling liquid flows into the inside of the cooling U-shaped pipe through the liquid inlet layer, the cooling liquid absorbs the heat transmitted to the inside from the surface of the screw blade body, the surface of the screw blade body is cooled and cooled, and the cooling liquid enters the liquid outlet layer after circulating in the inside of the cooling U-shaped pipe, and then is discharged by the liquid outlet layer.

[0008] The anti-gushing buffer mechanism comprises a three-way discharge pipe, a buffer pipe and a buffer scattering shaft, the three-way discharge pipe comprises a branch pipe, a vertical discharge pipe, a limiting inclined plate, a bottom supporting plate and a sensing hook plate, the branch pipe is communicated with the bottom of the conveying cylinder, the bottom of the branch pipe is communicated with the vertical discharge pipe, the bottom of the vertical discharge pipe is slidingly connected with the limiting inclined plate, and the bottom of the limiting inclined plate is fixedly connected with the bottom supporting plate; the inner wall of the limiting inclined plate is a slope, and the bottom supporting plate is fixedly connected with the bottom of the conveying cylinder through an electric push rod; the back of the bottom supporting plate is fixedly connected with the sensing hook plate, the back of the vertical discharge pipe is provided with a hook plate slidingly connected with the sensing hook plate, and the inside of the hook plate of the vertical discharge pipe is embedded with a pressure sensor.

[0009] The number of the buffer pipes is two, two symmetrical circular blind holes are formed in the front of the branch pipe, the two buffer pipes are respectively communicated with the two circular blind holes in the front of the branch pipe, and the front of the buffer pipe is downwardly inclined; the front of the buffer pipe is communicated with S-shaped discharge ports, the plane where the axis curve of the S-shaped discharge port is located and the cross section of the S-shaped discharge port are S-shaped, and the number of the S-shaped discharge ports is two; the front opening of the buffer scattering shaft is located at the top of the sludge conveying mechanism.

[0010] The buffer dispersing shaft comprises a hollow shaft body and a single-side inclined blade, the hollow shaft body is rotationally connected to the bottom support of the conveying cylinder, a single-side inclined blade is fixedly connected to the surface of the hollow shaft body, and a motor is fixedly connected to the back surface of the hollow shaft body.

[0011] The feeding crushing mechanism comprises a matching cover pipe and a coaxial grinding roller, the matching cover pipe is communicated with the front surface of the conveying cylinder, and the coaxial grinding roller is located inside the matching cover pipe.

[0012] The coaxial grinding roller comprises an eccentric roller body and a heat-conducting plug column, the eccentric roller body is fixed to the front surface of the propeller body, a fan-shaped hole is communicated inside the eccentric roller body, the fan-shaped hole is filled with cooling liquid, and the heat-conducting plug column is fixedly connected to the back surface of the eccentric roller body and fixedly connected to the inside of the propeller body, and the heat-conducting plug column is communicated with the cooling U-shaped pipe; during the crushing of the gravel by the coaxial grinding roller, the eccentric roller body actually rotates eccentrically due to the existence of the fan-shaped hole filled with the cooling liquid inside the coaxial grinding roller, and the vibration generated by the rotation of the coaxial grinding roller can assist in loosening the muck entering the device and assisting in crushing the gravel.

[0013] The outer surface of the conveying cylinder is covered with a heat preservation layer for isolating external heat.

[0014] Advantages: the conveying vibration mechanism is arranged, the matching cover pipe, the coaxial grinding roller, the ultrasonic vibration rod and the layered liquid cover are used to prevent the temperature inside the conveying cylinder and the surface of the propeller from being too high, prevent the muck from being bonded to affect the transmission efficiency and the uniformity of the muck conveying, and the high-frequency vibration transmitted by the cooling liquid assists the attached muck in separating from the propeller, the transmission efficiency and the reliability of the device are improved, and the stable soil discharge of the device is maintained; the feeding crushing mechanism is arranged, the matching cover pipe, the coaxial grinding roller and the transmission propeller are used to crush the gravel in the muck excavated by the cutter head, prevent the gravel from affecting the uniformity of the muck conveying and the damage of the gravel to the propeller, the eccentric hole in the coaxial grinding roller forms an eccentric rotating mechanism, vibration is generated when the coaxial grinding roller rotates, and the crushing of the gravel and the loosening of the muck are assisted, the reliability of the device operation is improved, and the earth pressure balance of the shield tunneling machine is maintained; the gushing prevention buffer mechanism is arranged, the conveying cylinder, the three-way discharge pipe, the sensing hook plate and the buffer pipe are used to sense the gushing state of the muck and buffer the muck when gushing, the prevention ability of the gushing phenomenon of the muck is improved, the gushing of the muck affects the tunneling and segment assembly process of the shield tunneling machine is prevented, and the reliability of the device is improved; the gushing prevention buffer mechanism is arranged, the buffer pipe and the buffer dispersing shaft are used to disperse the gushing muck for the second time, the gushing muck is prevented from being blocked in the buffer pipe to damage the device, the buffering effect of the gushing muck is improved, the reliability of the device is further improved, and the earth pressure balance of the device is maintained. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The overall structure of the present application is shown in the figure. Figure 2 The position relationship between the conveying cylinder and the conveying vibration mechanism and the anti-surge buffer mechanism of the present application is shown in the figure. Figure 3 The internal structure of the present application is shown in the figure. Figure 4 The position relationship between the transmission spiral blade and the coaxial grinding roller of the present application is shown in the figure. Figure 5 The enlarged structure at A in the present application is shown in the figure. Figure 3 Figure 6 The right view of the external structure of the coaxial grinding roller of the present application is shown in the figure. Figure 7 The internal structure of the coaxial grinding roller of the present application is shown in the figure. Figure 8 The position relationship between the conveying cylinder and the feeding and crushing mechanism of the present application is shown in the figure. Figure 9 The enlarged structure at B in the present application is shown in the figure. Figure 8 Figure 10 The position relationship between the limiting inclined plate and the bottom supporting plate of the present application is shown in the figure. Figure 11 The internal structure of the buffer tube of the present application is shown in the figure. Figure 12 The position relationship between the transmission gear and the buffer and scattering shaft of the present application is shown in the figure.

[0016] In the figure: 1, conveying cylinder; 2, conveying vibration mechanism; 21, transmission spiral blade; 211, spiral blade body; 212, cooling U-shaped tube; 213, ultrasonic vibration rod; 22, spiral blade adapter; 23, layered liquid cover; 231, liquid inlet layer; 232, liquid outlet layer; 3, feeding and crushing mechanism; 31, matched cover tube; 32, coaxial grinding roller; 321, eccentric roller body; 322, heat-conducting plug; 4, anti-surge buffer mechanism; 41, three-way discharge tube; 411, branch tube; 412, vertical discharge tube; 413, limiting inclined plate; 414, bottom supporting plate; 415, induction hook plate; 42, buffer tube; 43, buffer and scattering shaft; 431, hollow shaft body; 432, single-side inclined blade; 44, S-shaped discharge port; 5, electric control cabinet; 6, slag conveying mechanism. DETAILED DESCRIPTION

[0017] The present application will be described in detail below in combination with the drawings and examples.

[0018] As Figures 1-12 ​​The present application provides a shield machine buffer pipe type anti-surge spiral conveyor, which comprises a conveying cylinder 1, a conveying vibration mechanism 2, a feeding crushing mechanism 3, an anti-surge buffer mechanism 4, an electric control cabinet 5 and a muck transmission mechanism 6, the conveying cylinder 1 is located at the bottom of the cutter head driving mechanism of the shield machine, the included angle between the conveying cylinder 1 and the bottom horizontal plane is 22.5°, the bottom of the conveying cylinder 1 is fixedly connected with a vibration motor, the electric control cabinet 5 is arranged on the right side of the conveying cylinder 1, the muck transmission mechanism 6 is arranged at the bottom of the conveying cylinder 1, the muck transmission mechanism 6 is a prior art and is used for transporting muck; the feeding crushing mechanism 3 is arranged on the front of the conveying cylinder 1, the anti-surge buffer mechanism 4 is communicated with the bottom of the conveying cylinder 1, and the conveying vibration mechanism 2 is rotatably connected in the conveying cylinder 1.

[0019] The conveying vibration mechanism 2 comprises a vibration transmission spiral blade 21, a spiral blade adapter frame 22 and a layered liquid cover 23, the vibration transmission spiral blade 21 is rotatably connected in the conveying cylinder 1 and comprises a spiral blade body 211, a cooling U-shaped pipe 212 and an ultrasonic vibration rod 213, the spiral blade body 211 is rotatably connected in the conveying cylinder 1, a circular disc is fixedly connected to the top of the spiral blade body 211, the back surface of the circular disc is fixedly connected with the spiral blade adapter frame 22, and the back surface of the spiral blade adapter frame 22 is fixedly connected with a speed reducer or a hydraulic motor; the layered liquid cover 23 is fixedly connected to the back surface of the inner wall of the conveying cylinder 1; the cooling U-shaped pipe 212 is embedded in the top of the spiral blade body 211, the cross section of the cooling U-shaped pipe 212 is U-shaped, the top and the bottom of the cooling U-shaped pipe 212 are communicated with the top and the bottom of the spiral blade body 211 respectively, and the cooling U-shaped pipe 212 is filled with cooling liquid and is used for cooling.

[0020] A circular blind hole is formed in the top of the spiral blade body 211 and communicated with the cooling U-shaped pipe 212, the ultrasonic vibration rod 213 is fixedly connected to the spiral blade adapter frame 22 through the circular blind hole, and the ultrasonic vibration rod 213 is fixedly connected to the back surface of the spiral blade adapter frame 22; in the cooling liquid circulation process, the ultrasonic vibration rod 213 generates high-frequency vibration after being electrified, the high-frequency vibration is transmitted to the surface of the spiral blade body 211 through the cooling liquid, the adhered muck is loosened, the muck being conveyed in the conveying cylinder 1 is also loosened, and the probability of muck caking and blocking is reduced.

[0021] The layered liquid cover 23 comprises a liquid inlet layer 231 and a liquid outlet layer 232, the liquid inlet layer 231 is fixedly connected to the inner wall back of the conveying cylinder 1, and the liquid outlet layer 232 is fixed to the front of the liquid inlet layer 231; the inside of the liquid inlet layer 231 is communicated with the top of the cooling U-shaped pipe 212, and the liquid outlet layer 232 is communicated with the bottom of the cooling U-shaped pipe 212; the top of the liquid inlet layer 231 and the liquid outlet layer 232 is communicated with the top of the conveying cylinder 1 through a circular pipe, and the top of the liquid inlet layer 231 and the liquid outlet layer 232 is communicated with the liquid inlet and the liquid outlet of the cooling liquid pump respectively; the external cooling liquid flows into the inside of the cooling U-shaped pipe 212 through the liquid inlet layer 231, the cooling liquid absorbs the heat transferred to the inside from the surface of the spiral blade body 211, realizes the cooling and cooling of the surface of the spiral blade body 211, prevents the high temperature of the spiral blade from affecting the physical properties of the spiral blade, and then the cooling liquid enters the liquid outlet layer 232 after circulating in the inside of the cooling U-shaped pipe 212, and then the liquid outlet layer 232 discharges.

[0022] The anti-inrush buffer mechanism 4 comprises a three-way discharge pipe 41, a buffer pipe 42 and a buffer scattering shaft 43, the three-way discharge pipe 41 comprises a branch pipe 411, a vertical discharge pipe 412, a limiting inclined plate 413, a bottom supporting plate 414 and a sensing hook plate 415, the branch pipe 411 is communicated with the bottom of the conveying cylinder 1, the bottom of the branch pipe 411 is communicated with the vertical discharge pipe 412, the bottom of the vertical discharge pipe 412 is slidingly connected with the limiting inclined plate 413, and the bottom of the limiting inclined plate 413 is fixedly connected with the bottom supporting plate 414; the inner wall of the limiting inclined plate 413 is inclined, and the bottom supporting plate 414 is fixedly connected with the bottom of the conveying cylinder 1 through an electric push rod; the back of the bottom supporting plate 414 is fixedly connected with the sensing hook plate 415, the back of the vertical discharge pipe 412 is provided with a hook plate slidingly connected with the sensing hook plate 415, and a pressure sensor is embedded in the inside of the hook plate of the vertical discharge pipe 412.

[0023] The number of the buffer pipes 42 is two, two symmetric circular blind holes are formed in the front of the branch pipe 411, the two buffer pipes 42 are respectively communicated with the two circular blind holes in the front of the branch pipe 411, and the front of the buffer pipe 42 is downwardly inclined; the front of the buffer pipe 42 is communicated with an S-shaped discharge port 44, the opening of the front of the S-shaped discharge port 44 is located at the top of the muck conveying mechanism 6, the plane where the axis curve of the S-shaped discharge port 44 is located and the cross section of the S-shaped discharge port 44 are S-shaped, and the number of the S-shaped discharge ports 44 is two; the front of the buffer scattering shaft 43 is open at the top of the muck conveying mechanism 6.

[0024] The buffer scattering shaft 43 comprises a hollow shaft body 431 and a single-side inclined blade 432, the hollow shaft body 431 is rotationally connected to the bottom bracket of the conveying cylinder 1, the surface of the hollow shaft body 431 is fixedly connected with the single-side inclined blade 432, the back of the hollow shaft body 431 is fixedly connected with an electric motor, the electric motor is an alternating current motor, the electric motor is electrically connected with the electric control cabinet 5 through wires, and the electric motor is fixedly connected to the back of the conveying cylinder 1 through a bracket.

[0025] The feeding crushing mechanism 3 comprises a matching cover pipe 31 and a coaxial grinding roller 32, the matching cover pipe 31 is communicated with the front surface of the conveying cylinder 1, and the coaxial grinding roller 32 is located inside the matching cover pipe 31.

[0026] The coaxial grinding roller 32 comprises an eccentric roller body 321 and a heat-conducting plug 322, the eccentric roller body 321 is fixed to the front surface of the propeller body 211, the front surface of the propeller body 211 is fixedly connected with the coaxial grinding roller 32, the inside of the eccentric roller body 321 is communicated with a fan-shaped hole, the fan-shaped hole is filled with cooling liquid, the heat-conducting plug 322 is fixedly connected to the back surface of the eccentric roller body 321, the back surface of the heat-conducting plug 322 is fixedly connected to the inside of the propeller body 211, the heat-conducting plug 322 is communicated with the cooling U-shaped pipe 212, in the process of crushing the stones by the coaxial grinding roller 32, the eccentric roller body 321 actually rotates eccentrically because of the fan-shaped hole filled with the cooling liquid inside the coaxial grinding roller 32, the vibration generated by the rotation of the coaxial grinding roller 32 can assist in loosening the sludge entering the device and breaking the stones, because the coaxial grinding roller 32 needs to crush the stones for a long time, the surface of the coaxial grinding roller 32 will be heated in the crushing process, the heat is transferred to the cooling liquid inside the coaxial grinding roller 32, and the heat is transferred to the inside of the cooling liquid of the cooling U-shaped pipe 212 through the heat-conducting plug 322.

[0027] The outer surface of the conveying cylinder 1 is covered with a heat preservation layer for isolating external heat.

[0028] In use, under normal circumstances, the sludge is discharged from the top of the conveying cylinder 1, falls into the limiting inclined plate 413, falls to the top of the sludge conveying mechanism 6 under the action of gravity, the pressure of the subsequent sludge and the vibration of the branch pipe 411 vibration motor, and is conveyed backward by the sludge conveying mechanism 6, in this process, the sensing hook plate 415 is in contact with the hook plate of the vertical discharge pipe 412, the sensing hook plate 415 applies pressure to the pressure sensor of the vertical discharge pipe 412, the pressure sensor transmits pressure data to the electric control cabinet 5 in real time, when the spouting phenomenon occurs, the amount of soil discharged increases greatly, the pressure on the supporting bottom plate 414 increases, and then the force of the sensing hook plate 415 extruding the pressure sensor of the vertical discharge pipe 412 is greater, after receiving the data transmitted back by the pressure sensor, the electric control cabinet 5 controls the electric push rod to pull the supporting bottom plate 414 upward, the supporting bottom plate 414 drives the limiting inclined plate 413 to slide upward, and finally the bottom of the branch pipe 411 is closed, the spouting water-soil mixture enters the buffer pipe 42 from the two sides of the branch pipe 411, the buffer scattering shaft 43 rotates under the drive of the motor, the single-side inclined blade 432 is loosened under the drive of the hollow shaft body 431 and enters the soil in the buffer pipe 42, and simultaneously assists in reducing the flow rate of the spouting water-soil mixture, preventing the water-soil mixture from adhering to the surface of the buffer scattering shaft 43 and clogging the buffer pipe 42, and finally the water-soil mixture is discharged from the buffer pipe 42 into the S-shaped discharge port 44 and is discharged into the top of the sludge conveying mechanism 6 again through the S-shaped discharge port 44, thereby preventing the spouting water-soil mixture from directly impacting the construction area behind the shield machine.

[0029] The present application sets up a conveying vibration mechanism, uses the cooling U-shaped pipe, the ultrasonic vibration rod and the layered liquid cover to cooperate with the screw blade body, prevents the temperature of the inside of the conveying cylinder and the surface of the screw blade from being too high, prevents the slag soil from being bonded to affect the transmission efficiency and the uniformity of the slag soil conveying, and the high-frequency vibration transmitted by the cooling liquid helps the attached slag soil to separate from the screw blade, improves the transmission efficiency and the reliability of the device, and further maintains the stable soil discharge of the device; By setting the feeding crushing mechanism, using the cooperating cover pipe, the coaxial grinding roller and the transmission vibration screw blade, the broken stones in the slag soil excavated by the cutter head are crushed to prevent the broken stones from affecting the uniformity of the slag soil conveying and the damage of the broken stones to the screw blade, the eccentric rotating mechanism is formed by the eccentric hole in the coaxial grinding roller, so that vibration is generated when the coaxial grinding roller rotates, and the crushing of the broken stones and the loosening of the slag soil are further assisted, the reliability of the device operation is improved, and the earth pressure balance of the shield tunneling machine is further assisted to maintain; By setting the anti-gushing buffer mechanism, using the conveying cylinder, the three-way discharge pipe, the induction hook plate and the buffer pipe, the induction of the gushing state of the slag soil by the device and the buffer of the slag soil when gushing are realized, the prevention ability of the device to the gushing phenomenon of the slag soil is improved, the gushing of the slag soil affecting the tunneling and segment assembly process of the shield machine is prevented, and the reliability of the device is further improved; By setting the anti-gushing buffer mechanism, using the buffer pipe and the buffer scattering shaft, the gushing slag soil is scattered again, the gushing slag soil is prevented from being blocked in the buffer pipe to damage the device, the buffer effect of the device to the gushing slag soil is improved, the reliability of the device is further improved, and the earth pressure balance of the device is further maintained.

[0030] The above-mentioned embodiments of the present application are only examples and are not the only ones, and all changes within the scope of the present application or equivalent to the scope of the present application are covered by the present application.

Claims

1. A shield machine surge dammed auger conveyor, characterized by: Including conveying cylinder (1), conveying vibration mechanism (2), feeding crushing mechanism (3), anti surge buffer mechanism (4), electric control cabinet (5) and muck transmission mechanism (6), the conveying cylinder (1) is located at the bottom of the shield machine cutter drive mechanism, the included angle of conveying cylinder (1) with the bottom horizontal plane is 22.5 °, the bottom of conveying cylinder (1) is fixedly connected with vibration motor, the right side of conveying cylinder (1) is provided with electric control cabinet (5), muck transmission mechanism (6) is arranged at the bottom of conveying cylinder (1), is used for transporting muck after;Feeding crushing mechanism (3) is arranged at the front of conveying cylinder (1), anti surge buffer mechanism (4) is arranged at the bottom of conveying cylinder (1), the inside of conveying cylinder (1) is rotatably connected with conveying vibration mechanism (2).

2. The shield machine surge tube jetting auger of claim 1, wherein: The conveying vibration mechanism (2) includes vibration transmission spiral blade (21), spiral blade adapter frame (22) and layered liquid cover (23), the vibration transmission spiral blade (21) includes spiral blade body (211), cooling U-shaped pipe (212) and ultrasonic vibration rod (213), the spiral blade body (211) is rotatably connected in the inside of conveying cylinder (1), the top of which is fixedly connected with a circular disc, the back of the circular disc is fixedly connected with spiral blade adapter frame (22), and the back of spiral blade adapter frame (22) is fixedly connected with a speed reducer or a hydraulic motor;Layered liquid cover (23) is arranged on the back of the inner wall of conveying cylinder (1);The top of the spiral blade body (211) is embedded with cooling U-shaped pipe (212), and the top and bottom of cooling U-shaped pipe (212) are communicated with the top and bottom of spiral blade body (211) respectively, and cooling U-shaped pipe (212) is filled with cooling liquid.

3. The shield machine surge tube jetting auger of claim 2, wherein: The top of the spiral blade body (211) is provided with a circular blind hole communicated with the cooling U-shaped pipe (212), and the spiral blade body (211) is fixedly connected with the ultrasonic vibration rod (213) through the circular blind hole, and the ultrasonic vibration rod (213) is fixedly connected to the back of the spiral blade adapter frame (22);During the circulation of the cooling liquid, the ultrasonic vibration rod (213) is electrified to generate high-frequency vibration, and the high-frequency vibration is transmitted to the surface of the spiral blade body (211) through the cooling liquid, so that the adhered muck is loosened.

4. The shield machine surge tube jetting auger of claim 2, wherein: The layered liquid cover (23) includes liquid inlet layer (231) and liquid discharge layer (232), the liquid inlet layer (231) is fixedly connected to the back of the inner wall of the conveying cylinder (1), and the liquid discharge layer (232) is fixed to the front of the liquid inlet layer (231);The inside of the liquid inlet layer (231) is communicated with the top of the cooling U-shaped pipe (212), and the liquid discharge layer (232) is communicated with the bottom of the cooling U-shaped pipe (212), and the top of the liquid inlet layer (231) and the liquid discharge layer (232) is communicated with the top of the conveying cylinder (1) through a circular pipe, and the top of the liquid inlet layer (231) and the liquid discharge layer (232) is communicated with the liquid inlet and the liquid outlet of the cooling liquid pump respectively;The external cooling liquid flows into the inside of the cooling U-shaped pipe (212) through the liquid inlet layer (231), the cooling liquid absorbs the heat transmitted to the inside from the surface of the spiral blade body (211), realizes the cooling and cooling of the surface of the spiral blade body (211), and the cooling liquid enters the liquid discharge layer (232) after circulating in the inside of the cooling U-shaped pipe (212), and then is discharged from the liquid discharge layer (232).

5. The shield machine surge tube auger of claim 1, wherein: The anti-inrush buffer mechanism (4) comprises a three-way discharge pipe (41), a buffer pipe (42) and a buffer scattering shaft (43), the three-way discharge pipe (41) comprises a branch pipe (411), a vertical discharge pipe (412), a limiting inclined plate (413), a bottom supporting plate (414) and a sensing hook plate (415), the branch pipe (411) is communicated with the bottom of the conveying cylinder (1), the bottom of the branch pipe (411) is communicated with the vertical discharge pipe (412), the bottom of the vertical discharge pipe (412) is slidingly connected with the limiting inclined plate (413), and the bottom of the limiting inclined plate (413) is fixedly connected with the bottom supporting plate (414); the inner wall of the limiting inclined plate (413) is a slope, and the bottom supporting plate (414) is fixedly connected with the bottom of the conveying cylinder (1) through an electric push rod; the back of the bottom supporting plate (414) is fixedly connected with the sensing hook plate (415), the back of the vertical discharge pipe (412) is provided with a hook plate which is slidingly connected with the sensing hook plate (415), and the hook plate is internally embedded with a pressure sensor.

6. The shield machine buffer tube blow-by-preventing auger conveyor of claim 5, wherein: The buffer pipe (42) is two in number, the front of the branch pipe (411) is provided with two symmetrical circular blind holes, the two buffer pipes (42) are respectively communicated with the two circular blind holes in the front of the branch pipe (411), and the front of the buffer pipe (42) is downwardly inclined; the front of the buffer pipe (42) is communicated with an S-shaped discharge port (44), the plane where the axis curve of the S-shaped discharge port (44) is located and the section of the S-shaped discharge port (44) are S-shaped, and the number of the S-shaped discharge ports (44) is two; the front opening of the buffer scattering shaft (43) is located at the top of the muck conveying mechanism (6).

7. The shield machine buffer tube blow-by-preventing auger conveyor of claim 5, wherein: The buffer scattering shaft (43) comprises a hollow shaft body (431) and a single-side inclined blade (432), the hollow shaft body (431) is rotatably connected to the bottom bracket of the conveying cylinder (1), the surface of the hollow shaft body (431) is fixedly connected with the single-side inclined blade (432), the back of the hollow shaft body (431) is fixedly connected with an electric motor, the electric motor is electrically connected with the electric control cabinet (5) through wires, and the electric motor is fixedly connected to the back of the conveying cylinder (1) through a bracket.

8. The shield machine buffer tube blow-by-preventing auger conveyor of claim 1, wherein: The feeding and crushing mechanism (3) comprises a matching cover pipe (31) and a coaxial grinding roller (32), the matching cover pipe (31) is communicated with the front of the conveying cylinder (1), and the coaxial grinding roller (32) is located in the matching cover pipe (31).

9. The shield machine buffer tube type blow-by-preventing auger conveyor according to claim 8, characterized in that: The coaxial grinding roller (32) comprises an eccentric roller body (321) and a heat-conducting plug column (322), the eccentric roller body (321) is fixed to the front of the screw blade body (211), the eccentric roller body (321) is internally communicated with a fan-shaped hole, the fan-shaped hole is filled with a cooling liquid, and the heat-conducting plug column (322) is fixedly connected to the back of the eccentric roller body (321); the back of the heat-conducting plug column (322) is fixedly connected to the inside of the screw blade body (211), and the heat-conducting plug column (322) is communicated with the cooling U-shaped pipe (212); in the process of crushing the stones by the coaxial grinding roller (32), the fan-shaped hole filled with the cooling liquid exists in the coaxial grinding roller (32), so that the coaxial grinding roller (32) actually rotates eccentrically, and the vibration generated by the rotation of the coaxial grinding roller (32) can assist in loosening the muck entering the device and crushing the stones.

10. The shield machine surge tube screw conveyor of any one of claims 1-9, wherein: The conveying cylinder (1) is covered with a heat-insulating layer on the outer surface for insulating external heat.

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