Soil material conveying device for shield tunneling machine and operation method

Abstract

The invention relates to the technical field of conveying devices, and discloses a soil material conveying device for a shield tunneling machine and an operation method.The soil material conveying device comprises a rack, a driving motor is installed on the side face of the rack, and a first belt pulley set is arranged at the output end of the driving motor; the bottom and the top of the first belt pulley set are sleeved with a wet material conveying belt and a dry material conveying belt correspondingly, a discharging frame is arranged on the top of the dry material conveying belt, and a feeding mechanism and an extrusion mechanism are arranged on the side face of the machine frame correspondingly. The wet material conveying belt is simple in structure and not easy to accumulate and adhere to the conveying belt, the mud is separated according to the collected mud when the soil material is conveyed through the round roller, the guide wheel, the guide piece and the swing arm, and the surface of the wet material conveying belt is washed and cleaned by utilizing a generated water source.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying devices, and in particular to a soil material conveying device for a shield machine and an operating method thereof. Background Art

[0002] The shield machine is a heavy mechanical equipment used for tunnel excavation. It is widely used in the construction of underground projects, such as subways, railways, roads, water supply, drainage and other tunnel excavation. The main function of the shield machine is to crush the soil through the rotating cutter head and discharge the soil and muddy water through the propulsion device, so as to carry out tunnel excavation work underground.

[0003] The earth conveyor belt for the shield machine is used to transport the earth or mud materials generated during the excavation process to the outside to keep the shield machine continuously and smoothly excavating the tunnel. When the shield machine advances forward to excavate, dry earth and wet earth will be produced according to different geological conditions. When transporting earth, for wet earth, the main component is wet earth blocks containing mud. When it is transported directly through the conveyor belt, the surface of the wet earth blocks is covered with mud, which will slip on the conveyor belt, making transportation difficult and easy to stick to the conveyor belt, which is not conducive to improving the efficiency of earth transportation. In addition, when a conveyor belt transports wet materials and then transports dry materials, it is easy for the bottom layer of dry materials to stick to the conveyor belt, making it inconvenient to clean. Therefore, it needs to be improved. Summary of the invention

[0004] The purpose of the present invention is to provide a soil material conveying device for a shield machine and an operating method to solve the problems raised in the above background technology. To achieve the above purpose, the present invention provides the following technical solutions: a soil material conveying device for a shield machine, comprising a frame, a driving motor is installed on the side of the frame, a pulley group 1 is provided at the output end of the driving motor, a wet material conveying belt and a dry material conveying belt are respectively sleeved and installed at the bottom and top of the pulley group 1, a material unloading frame is provided on the top of the dry material conveying belt, and a feeding mechanism and an extrusion mechanism are respectively provided on the sides of the frame;

[0005] The feeding mechanism includes a pulley group 2, the bottom of the pulley group 2 is rotatably connected to one end of the wet material conveyor belt, the top of the pulley group 2 is connected to a bevel gear group, a box is arranged above the wet material conveyor belt, mounting plates are symmetrically arranged on both sides of the top of the box, and a rotating rod is rotatably connected to the bottom of the mounting plate on one side, one end of the rotating rod is connected to one side of the pulley group 3, the side of the pulley group 3 connected to the rotating rod is connected to the bevel gear group, and the other side of the pulley group 3 is connected to a reciprocating screw, the pulley group 3 drives the reciprocating screw to rotate through the rotating rod, the reciprocating screw is threadedly connected to a slider, and the slider is slidably connected to the box;

[0006] The sliders are symmetrically arranged on both sides of the box body, and the ends of the two sliders close to each other are rotatably connected to the rotating shaft, and a feeding hopper is fixedly connected to the rotating shaft, and pressure plates are slidably arranged at both ends of the inside of the feeding hopper, and springs are sleeved and installed on both sides of the rotating shaft, and the ends of the two springs that are far away from each other are respectively abutted against the inner side of the pressure plate, and a guide groove is provided at a place where the rotating shaft is installed with the spring, and the pressure plate is slidably connected to the rotating shaft through the guide groove, and a plurality of through holes are opened through the surface of the feeding hopper, and the feeding hopper and the pressure plate are both semicircularly arranged, and a top side of the pressure plate is provided with an inclined surface.

[0007] Preferably, the feeding mechanism also includes a top frame fixedly arranged on the top of the two mounting plates, a unloading rod is symmetrically installed on the side of the box body away from the rotating shaft, the unloading rod is movably connected to the box body, the end of the unloading rod away from the box body abuts against the top of the pressure plate, the unloading rod is fixedly connected to a limiting plate, a bracket is arranged under the limiting plate, the bracket is fixedly connected to the box body, the function of the bracket is to make the unloading rod can only be tilted upwards, and the function of the bracket is to buckle the pressure plate through the inclined surface of the pressure plate, and to flip the feeding hopper to realize the unloading operation.

[0008] Preferably, an electric push rod is fixedly installed at one end of the box body close to the unloading frame, and the end of the output end of the electric push rod is fixedly connected to a scraping plate, the height of the scraping plate is higher than the height of the feeding hopper, and is located between the two pressure plates.

[0009] Preferably, the extrusion mechanism includes a missing gear, which is fixedly connected to the middle part of the rotating rod, and a push rack is arranged above the missing gear. The push rack is slidably connected to the mounting plate, and the push racks are symmetrically arranged on both sides of the box body, and the bottom end of one of the push racks close to the missing gear is fixedly connected with a tooth plate, and the tooth plate is movably connected to the missing gear, and a spring 2 is sleeved and installed at the connection between the push rack and the mounting plate.

[0010] Preferably, the top of the push frame is fixedly connected to a special-shaped rod, and the special-shaped rod is opened outward on the side close to the unloading rod, so as to release the squeezing of the soil by the two pressure plates to facilitate the unloading of the soil. The top of one of the push frames close to the missing gear is fixedly connected to a lower rack, and the middle part of the top frame is rotatably connected to a middle gear, and the top of the middle gear is meshed with an upper rack, and the upper rack is fixedly connected to the other push frame.

[0011] Preferably, a mud port and a guide plate are respectively provided on both sides of the bottom of the box body, the guide plate is located above the wet material conveyor belt, and an inclined plate is provided inside the box body, the inclined plate is inclined toward the mud port, and the function of the inclined plate is to guide the mud for collection.

[0012] Preferably, a mud pump is installed on the side wall of the box body, the output port of the mud pump is connected to a mud pipe, the mud pipe is connected to a mud separator, a water pump is installed on the side wall of the mud separator, and the output port of the water pump is connected to a water pipe.

[0013] Preferably, it also includes a flushing mechanism, which includes a round roller, which is rotatably installed at the bottom of the wet material conveyor belt, the round roller is rotatably connected to a pulley group four, the top of the pulley group four is connected to the wet material conveyor belt, the surface spiral array of the round roller has several guide wheels, the bottom of the frame is located at the front side of the round roller and is rotatably connected to a swing arm, the end of the swing arm close to the round roller is rotatably connected to a guide plate, the guide plate contacts the surfaces of several guide wheels, the bottom of the frame is fixedly connected to a slide, a slide is slidably installed on the slide, one end of the swing arm is slidably connected to the slide, and a spring three is provided in the slide at one side of the slide.

[0014] Preferably, the end of the swing arm is connected to a hose, the end of the hose away from the swing arm is connected to a water pipe, and a water spray head is installed at the end of the swing arm, and the installation angle of the water spray head is aligned with the surface of the wet material conveyor belt.

[0015] Preferably, a method for operating a soil material conveying device for a shield machine comprises the following steps:

[0016] S1: When conveying soil, start the drive motor, through the pulley group 1, the wet material conveyor belt and the dry material conveyor belt run synchronously, and can be conveyed separately according to the moisture content of the soil, and at the same time, when conveying wet materials, throw wet material blocks smaller than its capacity into the feeding hopper, through the pulley group 2, the bevel gear group and the reciprocating screw, so that the feeding hopper drives the wet material blocks to move to the wet material conveyor belt. During the process, the mud on the surface of the wet material blocks flows out along the through hole, through the pulley group 3, the rotating rod rotates continuously, and when the gear and the tooth plate are engaged After that, the transmission toothed plate drives the push frame on one side to slide toward the middle of the box body, compressing the second spring in the process, and the special-shaped rod pushes the top of the pressure plate toward the middle, so that the pressure plate slides on the rotating shaft, and compresses the first spring, so that the surface of the pressure plate squeezes the wet material block, so that the mud flows out further, and the wet material blocks gather together. When the missing gear and the toothed plate are disengaged, the force of the second spring makes the special-shaped rod open outward, and the pressure plate opens outward synchronously, which is convenient for the mud to flow away, and the special-shaped rods on both sides are squeezed synchronously through the lower rack, the middle gear and the upper rack;

[0017] S2: After the extrusion is completed, the pressing plate passes through the area where the special-shaped rod is opened. Then, the top of the pressing plate contacts the end of the discharge rod and lifts the discharge rod upward. The pressing plate passes through the top of the discharge rod, and then the reciprocating screw drives the feeding hopper to return. During the process, the pressing plate is blocked by the discharge rod, and the feeding hopper is flipped upward according to the sliding connection between the pressing plate and the guide groove of the rotating shaft. During the process, the output end of the electric push rod is controlled to extend synchronously in the moving direction of the feeding hopper, so that the scraping plate is inside the feeding hopper. According to the rotation and swing of the feeding hopper, the wet material blocks inside are scraped out and fall on the wet material conveyor belt along the inclined plate. The squeezed mud is pumped away by the mud pump through the mud port along the inclined plate and transported to the inside of the mud separator. The slurry and water are separated by the mud separator, and the water is led to the flushing mechanism through the water pump and the water pipe;

[0018] S3: When the wet material conveyor belt is running, the round roller is driven to rotate through the pulley group 4. During the process, the guide wheel continuously pushes the guide plate away on the surface of the round roller, so that the swing arm drives the hose and the water spray head to move back and forth at the bottom of the wet material conveyor belt. The water pipe passes through the hose and the water spray head to spray water onto the surface of the wet material conveyor belt to rinse and clean the mud and mud blocks remaining on the surface of the wet material conveyor belt.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. In the present invention, the wet material blocks are transported in batches by means of the provided feeding hopper, and are not easy to be accumulated and adhered to the conveyor belt. The wet material blocks in the feeding hopper can make the mud leak outward according to the provided through holes, thereby reducing the moisture content of the wet material blocks, and preventing them from slipping and not moving forward on the conveyor belt, thereby improving the soil material transportation efficiency;

[0021] 2. In the present invention, through the special-shaped rod, when the feeding hopper moves forward, the missing gear meshes with the toothed plate, driving the push frame and the special-shaped rod on one side to move inward, so that the pressing plate is pushed inward, the wet material blocks are squeezed and gathered, so that the mud is further squeezed outward, and the wet material blocks can be aggregated, which is not easy to scatter on the conveyor belt and is more convenient for transportation, and the pressing plates on both sides are squeezed synchronously through the lower rack, the middle gear and the upper rack;

[0022] 3. In the present invention, by means of the provided round rollers, guide wheels, guide vanes and swing arms, when conveying soil materials, the mud is separated according to the collected mud, and the surface of the wet material conveyor belt is washed and cleaned by the generated water source. According to the operation of the wet material conveyor belt, the swing arm is driven by the guide wheel, and its end carries the water spray head to continuously move back and forth, so as to evenly wash the wet material conveyor belt and clean the adhered soil materials;

[0023] 4. In the present invention, by staggeredly arranging dry material conveyor belts and wet material conveyor belts, the soil materials can be classified and conveyed when being conveyed, so that the conveying device can adapt to different conveying conditions according to the characteristics of the soil materials, thereby improving the stability of conveying. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a front structural schematic diagram of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the feeding mechanism of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the extrusion mechanism of the present invention;

[0028] Figure 5 For the present invention Figure 3 Schematic diagram of the enlarged structure of the A area in the middle;

[0029] Figure 6 It is a schematic diagram of the expanded structure of the feeding mechanism of the present invention;

[0030] Figure 7 It is a side view structural schematic diagram of the present invention;

[0031] Figure 8 It is a structural schematic diagram of the flushing mechanism of the present invention;

[0032] Fig. 9 It is a schematic diagram of the structure of the round roller, guide wheel, swing arm, guide blade and water spray head of the present invention.

[0033] In the figure: 1, frame; 2, driving motor; 3, pulley group 1; 4, wet material conveyor belt; 5, dry material conveyor belt; 6, unloading frame; 7, feeding mechanism; 701, pulley group 2; 702, bevel gear group; 703, box; 704, mounting plate; 705, rotating rod; 706, pulley group 3; 707, reciprocating screw rod; 708, slider; 709, rotating shaft; 710, feeding hopper; 711, pressing plate; 712, spring 1; 713, guide groove; 714, through hole; 715, top frame; 716, unloading rod; 717, limit plate; 718, bracket; 719, electric push rod; 720, stripping plate; 721, Mud port; 722, guide plate; 723, inclined plate; 8, extrusion mechanism; 801, missing gear; 802, push frame; 803, tooth plate; 804, spring two; 805, special-shaped rod; 806, lower rack; 807, middle gear; 808, upper rack; 9, mud pump; 10, mud pipe; 11, mud separator; 12, water pump; 13, water pipe; 14, pulley group four; 15, flushing mechanism; 1501, round roller; 1502, guide wheel; 1503, swing arm; 1504, guide plate; 1505, slide; 1506, slide; 1507, spring three; 1508, hose; 1509, sprinkler head. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0035] Embodiment 1:

[0036] See also Figures 1 to 6 This embodiment provides a technical solution: comprising a frame 1, a driving motor 2 is installed on the side of the frame 1, a pulley set 3 is provided at the output end of the driving motor 2, a wet material conveyor belt 4 and a dry material conveyor belt 5 are respectively sleeved and installed at the bottom and top of the pulley set 3, a feeding frame 6 is provided on the top of the dry material conveyor belt 5, and a feeding mechanism 7 and an extrusion mechanism 8 are respectively provided on the sides of the frame 1;

[0037] The feeding mechanism 7 includes a pulley group 2 701, the bottom of which is rotatably connected to one end of the wet material conveyor belt 4, the top of which is connected to a bevel gear group 702, a box 703 is provided above the wet material conveyor belt 4, mounting plates 704 are symmetrically provided on both sides of the top of the box 703, the bottom of the mounting plate 704 on one side is rotatably connected to a rotating rod 705, one end of the rotating rod 705 is connected to one side of a pulley group 3 706, the pulley group 3 706 is connected to one side of the rotating rod 705 and is connected to the bevel gear group 702, the other side of the pulley group 3 706 is connected to a reciprocating screw rod 707, the pulley group 3 706 drives the reciprocating screw rod 707 to rotate through the rotating rod 705, the reciprocating screw rod 707 is threadedly connected to a slider 708, and the slider 708 is slidably connected to the box 703;

[0038] The sliders 708 are symmetrically arranged on both sides of the box body 703, and the ends of the two sliders 708 close to each other are rotatably connected with a rotating shaft 709, and a feeding hopper 710 is fixedly connected to the rotating shaft 709. Pressing plates 711 are slidably arranged at both ends of the feeding hopper 710, and springs 712 are sleeved and installed on both sides of the rotating shaft 709. The ends of the two springs 712 that are away from each other are respectively abutted against the inner sides of the pressing plates 711, and a guide groove 713 is provided at the rotating shaft 709 where the springs 712 are installed. The pressing plate 711 is slidably connected to the rotating shaft 709 through the guide groove 713. A plurality of through holes 714 are penetrated on the surface of the feeding hopper 710, and the feeding hopper 710 and the pressing plate 711 are both semicircularly arranged, and one side of the top of the pressing plate 711 is provided with an inclined surface;

[0039] The feeding mechanism 7 also includes a top frame 715 fixedly arranged on the top of the two mounting plates 704, a discharge rod 716 is symmetrically installed on one side of the box body 703 away from the rotating shaft 709, the discharge rod 716 is movably connected to the box body 703, and the end of the discharge rod 716 connected away from the box body 703 abuts against the top of the pressing plate 711, and a limiting plate 717 is fixedly connected to the discharge rod 716, and a bracket 718 is arranged below the limiting plate 717, and the bracket 718 is fixedly connected to the box body 703. The function of the bracket 718 is to make the discharge rod 716 only tilt upward, and to buckle the pressing plate 711 through the inclined surface of the pressing plate 711, and to flip the feeding hopper 710 to realize the discharge operation;

[0040] An electric push rod 719 is fixedly installed at one end of the box body 703 close to the unloading frame 6, and a stripping plate 720 is fixedly connected to the end of the output end of the electric push rod 719. The height of the stripping plate 720 is higher than the height of the feeding hopper 710 and is located between the two pressing plates 711;

[0041] The extrusion mechanism 8 includes a missing gear 801, which is fixedly connected to the middle of the rotating rod 705. A push frame 802 is arranged above the missing gear 801, and the push frame 802 is slidably connected to the mounting plate 704. The push frames 802 are symmetrically arranged on both sides of the box body 703. A tooth plate 803 is fixedly connected to the bottom end of one of the push frames 802 close to the missing gear 801, and the tooth plate 803 is movably connected to the missing gear 801. A spring 802 is sleeved and installed at the connection between the push frame 802 and the mounting plate 704. 4. The top of the push frame 802 is fixedly connected with a special-shaped rod 805, and the side of the special-shaped rod 805 close to the discharge rod 716 is opened outward, so as to make the two pressure plates 711 release the squeezing of the soil material, so as to facilitate the discharge of the soil material. The top of one of the push frames 802 close to the missing gear 801 is fixedly connected with a lower rack 806, and the middle part of the top frame 715 is rotatably connected with a middle gear 807, and the top of the middle gear 807 is meshed with an upper rack 808, and the upper rack 808 is fixedly connected to the other push frame 802;

[0042] A mud port 721 and a guide plate 722 are respectively provided on both sides of the bottom of the box 703. The guide plate 722 is located above the wet material conveyor belt 4. An inclined plate 723 is provided inside the box 703. The inclined plate 723 is inclined toward the mud port 721, and its function is to guide the mud for collection.

[0043] In this embodiment, the wet material conveyor belt 4 and the dry material conveyor belt 5 are staggered at the discharge ends, which can prevent the dry material from contacting the wet material, thereby affecting the state of the soil material;

[0044] In this embodiment, only half of the surface of the missing gear 801 has teeth, which is used to make it intermittently mesh with the tooth plate 803, so that the pressing plate 711 can be loosened for a period of time after squeezing the wet material block, so as to facilitate the mud to flow out;

[0045] In this embodiment, refer to Figure 5 A circular stopper is provided at the end of the discharge rod 716 to block the pressure plate 711, so that the feeding hopper 710 can be turned over as a whole, and the discharge rod 716 can only be turned over and swung upwards through the cooperation of the bracket 718 and the limit plate 717;

[0046] Embodiment 2:

[0047] See also Figure 1 , Figures 7 to 9 This embodiment provides a technical solution: a mud pump 9 is installed on the side wall of the box 703, the output port of the mud pump 9 is connected to a mud pipe 10, the mud pipe 10 is connected to a mud separator 11, a water pump 12 is installed on the side wall of the mud separator 11, and the output port of the water pump 12 is connected to a water pipe 13;

[0048] It also includes a flushing mechanism 15, which includes a round roller 1501, which is rotatably installed at the bottom of the wet material conveyor belt 4, and the round roller 1501 is rotatably connected to the pulley group four 14, and the top of the pulley group four 14 is connected to the wet material conveyor belt 4. The surface spiral array of the round roller 1501 has several guide wheels 1502, and the bottom of the frame 1 is located at the front side of the round roller 1501 and is rotatably connected to a swing arm 1503, and one end of the swing arm 1503 close to the round roller 1501 is rotatably connected to a guide plate 1504, and the guide plate 1504 contacts the surfaces of several guide wheels 1502, and a slide 1505 is fixedly connected to the bottom of the frame 1, and a slide 1506 is slidably installed on the slide 1505, and one end of the swing arm 1503 is slidably connected to the slide 1506, and a spring three 1507 is provided on one side of the slide 1506 in the slide 1505;

[0049] The end of the swing arm 1503 is connected to a hose 1508, and the end of the hose 1508 away from the swing arm 1503 is connected to the water pipe 13. A water spray head 1509 is installed at the end of the swing arm 1503, and the installation angle of the water spray head 1509 is aligned with the surface of the wet material conveyor belt 4;

[0050] In this embodiment, under the pressure of the spring 3 1507, the slide 1506 always pushes the swing arm 1503, so that the end of the swing arm 1503 equipped with the guide piece 1504 always fits with the guide wheel 1502;

[0051] In this embodiment, the water source generated by the mud separation is used to flush the wet material conveyor belt 4, so that the wet material conveyor belt 4 is kept clean;

[0052] The use method and advantages of the present invention: The operation method of the soil material conveying device for a shield machine, the working process is as follows:

[0053] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 As shown:

[0054] S1: When conveying soil materials, start the driving motor 2, through the pulley group 1 3, the wet material conveyor belt 4 and the dry material conveyor belt 5 run synchronously, and can be conveyed separately according to the moisture content of the soil materials, and at the same time, when conveying wet materials, throw wet material blocks smaller than its capacity into the feeding hopper 710, through the pulley group 2 701 and the bevel gear group 702 and the reciprocating screw 707, so that the feeding hopper 710 drives the wet material blocks to move to the wet material conveyor belt 4. During the process, the mud on the surface of the wet material blocks flows out along the through hole 714, through the pulley group 3 706, the rotating rod 705 continues to rotate, and when the missing gear 801 and the tooth plate 803 are engaged, the transmission tooth plate 803 drives The push frame 802 on one side slides toward the middle of the box body 703, compressing the spring 2 804 in the process, and the special-shaped rod 805 pushes the top of the pressure plate 711 toward the middle, so that the pressure plate 711 slides on the rotating shaft 709, and compresses the spring 1 712, so that the surface of the pressure plate 711 squeezes the wet material block, so that the mud flows out further, and the wet material blocks gather together. When the missing gear 801 and the toothed plate 803 are disengaged, the force of the spring 2 804 makes the special-shaped rod 805 open outward, and the pressure plate 711 opens outward synchronously to facilitate the flow of mud. The special-shaped rods 805 on both sides are squeezed synchronously through the lower rack 806, the middle gear 807 and the upper rack 808;

[0055] S2: After the extrusion is completed, the pressing plate 711 passes through the area where the special-shaped rod 805 is opened, and then the top of the pressing plate 711 contacts the end of the discharge rod 716 and pushes the discharge rod 716 upward. The pressing plate 711 passes through the top of the discharge rod 716, and then the reciprocating screw 707 drives the feeding hopper 710 to return. During the process, the pressing plate 711 is blocked by the discharge rod 716, and according to the sliding connection between the pressing plate 711 and the guide groove 713 of the rotating shaft 709, the feeding hopper 710 is turned upward, and the electric push rod is controlled during the process. The output end of 719 is synchronously extended toward the moving direction of the feeding hopper 710, so that the scraping plate 720 is inside the feeding hopper 710. According to the rotation and swing of the feeding hopper 710, the wet material blocks inside are scraped out and fall onto the wet material conveyor belt 4 along the inclined plate 723. The squeezed mud is pumped away by the mud pump 9 through the mud port 721 along the inclined plate 723 and transported to the inside of the mud separator 11. The slurry and water are separated by the mud separator 11, and the water is led to the flushing mechanism 15 through the water pump 12 and the water pipe 13.

[0056] S3: When the wet material conveyor belt 4 is running, the round roller 1501 is driven to rotate through the pulley group 14. During the process, the guide wheel 1502 continuously pushes the guide plate 1504 away on the surface of the round roller 1501, so that the swing arm 1503 drives the hose 1508 and the water spray head 1509 to move back and forth at the bottom of the wet material conveyor belt 4. The water pipe 13 passes through the hose 1508 and the water spray head 1509 to spray water onto the surface of the wet material conveyor belt 4, so as to rinse and clean the mud and mud blocks remaining on the surface of the wet material conveyor belt 4.

[0057] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A soil material conveying device for a shield machine, characterized in that: The machine comprises a frame (1), a driving motor (2) is mounted on the side of the frame (1), a pulley group (3) is arranged at the output end of the driving motor (2), a wet material conveyor belt (4) and a dry material conveyor belt (5) are respectively sleeved and mounted at the bottom and top of the pulley group (3), a material unloading frame (6) is arranged at the top of the dry material conveyor belt (5), and a feeding mechanism (7) and an extrusion mechanism (8) are respectively arranged on the side of the frame (1); The feeding mechanism (7) comprises a second pulley group (701), the bottom of the second pulley group (701) is rotatably connected to one end of the wet material conveyor belt (4), the top of the second pulley group (701) is connected to a bevel gear group (702), a box body (703) is arranged above the wet material conveyor belt (4), and mounting plates (704) are symmetrically arranged on both sides of the top of the box body (703), and a rotating rod (705) is rotatably connected to the bottom of the mounting plate (704) on one side, and the rotating rod (705) is rotatably connected to the bottom of the mounting plate (704) on one side. 5) is connected to one side of a pulley group three (706), the pulley group three (706) is connected to one side of a rotating rod (705) and is connected to a bevel gear group (702), the other side of the pulley group three (706) is connected to a reciprocating screw (707), the pulley group three (706) drives the reciprocating screw (707) to rotate through the rotating rod (705), the reciprocating screw (707) is threadedly connected to a slider (708), and the slider (708) is slidably connected to the box (703); The sliders (708) are symmetrically arranged on both sides of the box body (703); the ends of the two sliders (708) that are close to each other are rotatably connected to a rotating shaft (709); a feeding hopper (710) is fixedly connected to the rotating shaft (709); pressure plates (711) are slidably arranged at both ends of the feeding hopper (710); springs (712) are sleeved and installed on both sides of the rotating shaft (709); the ends of the two springs (712) that are far away from each other are rotatably connected to each other. The ends are respectively in contact with the inner side of the pressure plate (711); a guide groove (713) is provided at one end (712) of the rotating shaft (709) for installing the spring; the pressure plate (711) is slidably connected to the rotating shaft (709) through the guide groove (713); a plurality of through holes (714) are provided through the surface of the feeding hopper (710); the feeding hopper (710) and the pressure plate (711) are both arranged in a semicircular shape; and a slope is provided on one side of the top of the pressure plate (711).

2. The soil material conveying device for a shield machine according to claim 1, characterized in that: The feeding mechanism (7) also includes a top frame (715) fixedly arranged on the top of the two mounting plates (704); a discharge rod (716) is symmetrically installed on one side of the box body (703) away from the rotating shaft (709); the discharge rod (716) is movably connected to the box body (703); one end of the discharge rod (716) away from the box body (703) is abutted against the top of the pressure plate (711); a limiting plate (717) is fixedly connected to the discharge rod (716); a bracket (718) is arranged below the limiting plate (717); the bracket (718) is fixedly connected to the box body (703); the function of the bracket (718) is to make the discharge rod (716) only tilt upwards, and the function of the bracket (718) is to buckle the pressure plate (711) through the inclined surface of the pressure plate (711) and flip the feeding hopper (710) to realize the discharge operation.

3. The soil material conveying device for a shield machine according to claim 2, characterized in that: An electric push rod (719) is fixedly installed at one end of the box body (703) close to the unloading frame (6), and the end of the output end of the electric push rod (719) is fixedly connected to a material removal plate (720). The height of the material removal plate (720) is higher than the height of the feeding hopper (710) and is located between the two pressing plates (711).

4. The soil material conveying device for a shield machine according to claim 1, characterized in that: The extrusion mechanism (8) comprises a missing gear (801), the missing gear (801) is fixedly connected to the middle part of the rotating rod (705), a push frame (802) is arranged above the missing gear (801), the push frame (802) is slidably connected to the mounting plate (704), the push frame (802) is symmetrically arranged on both sides of the box body (703), a tooth plate (803) is fixedly connected to the bottom end of one of the push frames (802) close to the missing gear (801), the tooth plate (803) is movably connected to the missing gear (801), and a spring 2 (804) is sleeved and installed at the connection between the push frame (802) and the mounting plate (704).

5. The soil material conveying device for a shield machine according to claim 4, characterized in that: The top of the push frame (802) is fixedly connected with a special-shaped rod (805), and the special-shaped rod (805) is opened outward on the side close to the unloading rod (716), so as to make the two pressing plates (711) release the squeezing of the soil material, so as to facilitate the unloading of the soil material. The top of one of the push frames (802) close to the missing gear (801) is fixedly connected with a lower rack (806), and the middle part of the top frame (715) is rotatably connected with a middle gear (807), and the top of the middle gear (807) is meshed with an upper rack (808), and the upper rack (808) is fixedly connected to the other push frame (802).

6. The soil material conveying device for a shield machine according to claim 4, characterized in that: A mud port (721) and a guide plate (722) are respectively provided on both sides of the bottom of the box body (703), wherein the guide plate (722) is located above the wet material conveyor belt (4), and an inclined plate (723) is provided inside the box body (703), wherein the inclined plate (723) is inclined toward the mud port (721) and functions to guide the mud for collection.

7. The soil material conveying device for a shield machine according to claim 6, characterized in that: A mud pump (9) is installed on the side wall of the box body (703), the output port of the mud pump (9) is connected to a mud pipe (10), the mud pipe (10) is connected to a mud separator (11), a water pump (12) is installed on the side wall of the mud separator (11), and the output port of the water pump (12) is connected to a water pipe (13).

8. The soil material conveying device for a shield machine according to claim 1, characterized in that: The machine also comprises a flushing mechanism (15), wherein the flushing mechanism (15) comprises a round roller (1501), wherein the round roller (1501) is rotatably mounted on the bottom of the wet material conveyor belt (4), wherein the round roller (1501) is rotatably connected to a pulley group four (14), wherein the top of the pulley group four (14) is connected to the wet material conveyor belt (4), wherein the surface of the round roller (1501) has a spiral array with a plurality of guide wheels (1502), wherein the bottom of the frame (1) is located at the front side of the round roller (1501) and is rotatably connected to a swing arm (1503), wherein One end of the swing arm (1503) close to the round roller (1501) is rotatably connected to a guide plate (1504), and the guide plate (1504) contacts the surfaces of several guide wheels (1502). A slide (1505) is fixedly connected to the bottom of the frame (1), and a slide (1506) is slidably installed on the slide (1505). One end of the swing arm (1503) is slidably connected to the slide (1506), and a spring three (1507) is arranged on one side of the slide (1506) in the slide (1505).

9. The soil material conveying device for a shield machine according to claim 8, characterized in that: The end of the swing arm (1503) is connected to a hose (1508), and the end of the hose (1508) away from the swing arm (1503) is connected to the water pipe (13). A water spray head (1509) is installed at the end of the swing arm (1503), and the installation angle of the water spray head (1509) is aligned with the surface of the wet material conveyor belt (4).

10. The method for operating a soil material conveying device for a shield machine according to claim 1, characterized in that: The steps include: S1: When conveying soil materials, the driving motor (2) is started, and the wet material conveyor belt (4) and the dry material conveyor belt (5) are operated synchronously through the pulley group 1 (3), and the soil materials can be conveyed separately according to the moisture content, and at the same time. When conveying wet materials, wet material blocks smaller than the capacity of the soil materials are delivered to the feeding hopper (710), and the feeding hopper (710) drives the wet material blocks to move toward the wet material conveyor belt (4) through the pulley group 2 (701), the bevel gear group (702) and the reciprocating screw (707). During the process, the mud on the surface of the wet material blocks flows out along the through hole (714), passes through the pulley group 3 (706), and the rotating rod (705) rotates continuously. When the missing gear (801) and the tooth plate (803) are meshed, the transmission tooth plate (803) drives one side The push frame (802) slides toward the middle of the box body (703), compressing the second spring (804) during the process, and the special-shaped rod (805) pushes the top of the pressure plate (711) toward the middle, so that the pressure plate (711) slides on the rotating shaft (709), and compresses the first spring (712), so that the surface of the pressure plate (711) squeezes the wet material block, so that the mud flows out further, and the wet material blocks gather together. When the missing gear (801) and the toothed plate (803) are disconnected, the force of the second spring (804) causes the special-shaped rod (805) to open outward, and the pressure plate (711) opens outward synchronously, so that the mud flows away, and the special-shaped rods (805) on both sides are squeezed synchronously through the lower rack (806), the middle gear (807) and the upper rack (808); S2: After the extrusion is completed, the pressing plate (711) passes through the open area of ​​the special-shaped rod (805), and then the top of the pressing plate (711) contacts the end of the discharge rod (716) and pushes the discharge rod (716) upward. The pressing plate (711) passes through the top of the discharge rod (716), and then the reciprocating screw (707) drives the feeding hopper (710) back to its position. During the process, the pressing plate (711) is blocked by the discharge rod (716), and according to the sliding connection between the pressing plate (711) and the guide groove (713) of the rotating shaft (709), the feeding hopper (710) is turned upward, and the electric push rod is controlled during the process. The output end of (719) is synchronously extended in the moving direction of the feeding hopper (710), so that the scraping plate (720) is located inside the feeding hopper (710). According to the rotation and swing of the feeding hopper (710), the wet material blocks inside are scraped out and fall onto the wet material conveyor belt (4) along the inclined plate (723). The squeezed mud is pumped away by the mud pump (9) through the mud port (721) along the inclined plate (723) and transported to the inside of the mud separator (11). The slurry and water are separated by the mud separator (11), and the water is guided to the flushing mechanism (15) through the water pump (12) and the water pipe (13); S3: When the wet material conveyor belt (4) is running, the round roller (1501) is driven to rotate through the pulley group four (14). During the process, the guide wheel (1502) continuously pushes the guide plate (1504) away from the surface of the round roller (1501), so that the swing arm (1503) drives the hose (1508) and the water spray head (1509) to move back and forth at the bottom of the wet material conveyor belt (4). The water pipe (13) passes through the hose (1508) and the water spray head (1509) to spray water onto the surface of the wet material conveyor belt (4), so as to wash and clean the mud and mud blocks remaining on the surface of the wet material conveyor belt (4).

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