A dust collector for TBM tunneling

Abstract

The present invention belongs to the technical field of dust removal in tunnel construction, and specifically relates to a dust collector for TBM tunneling. It comprises a fuselage, which is a cylindrical structure, and a dust suction pipe is connected to the side wall of the fuselage, and a fan is installed on the dust suction pipe; a rotating mechanism is installed inside the fuselage, and three filter mechanisms are rotatably connected to the rotating mechanism, and the three filter mechanisms are aligned with the dust suction pipe in sequence through the rotating mechanism; the bottom of the fuselage is a water tank, and an automatic unloading mechanism is provided at the bottom of the filter mechanism, and the automatic unloading mechanism is used to discharge the dust of the filter mechanism into the water tank at the bottom of the fuselage. The present invention avoids the problem of dust sticking to the filter net and the dust removal structure by spraying water to reduce dust, and the present invention realizes automatic dust cleaning and processing of the filter mechanism and improves the cleaning effect and efficiency; the present invention can not only make the dust be fully mixed and processed by water, but also ensure that the dust will not stick to the inner wall of the water tank.

Description

Technical Field

[0001] The invention belongs to the technical field of dust removal in tunnel construction, and in particular relates to a dust remover for TBM tunneling. Background Art

[0002] TBM tunneling is a modern construction method that uses a tunnel boring machine to dig a tunnel in the ground. When working, the shield machine uses the rotation of the propulsion main shaft and the negative wheel to gradually move forward under the push, while the cutting and crushing device cuts the rock surface and sends the excavated soil layer to the outside through the conveying system.

[0003] A lot of dust will be generated during the excavation of TBM tunnels. TBM excavation involves processes such as cutter head rock drilling, belt slag removal and anchor spraying, all of which will generate a lot of dust. In order to effectively control the dust problem during TBM tunnel excavation, ventilation dust removal and dust removal equipment can be used. Among them, dust removal equipment is widely used and easy to move, which is conducive to the continuous excavation of tunnel construction and the convenience of changing the dust removal position at any time.

[0004] A Chinese patent with application number 201910170819.5 discloses a dust removal device for tunnel construction, which improves the dust removal effect and practicality; and the height of the dust hood can be adjusted according to the changes in the space in the tunnel, thereby improving the reliability of use; it includes a box body, a base, an exhaust fan and a dust hood, a roller group is provided at the bottom end of the base, the box body is installed at the top end of the base, and a working chamber is provided inside the box body, and an exhaust pipe is provided at the top end of the box body; it also includes a spray pump, a guide plate, a filter screen, a partition, a spray pipe, multiple groups of spray heads, a feeding pipe, a water feeding pipe, a support plate, four groups of guide columns, four groups of guide sleeves, two groups of telescopic cylinders, two groups of adjusting screws, a rotating shaft, a piston rod, a front slide plate, a rear slide plate, a front rack, a rear rack, a first ball bearing, a front support plate, a rear support plate, a second ball bearing, a third ball bearing and a connecting bracket.

[0005] Usually when using dust removal equipment for tunnel construction dust removal, it is handled by spraying. This method cannot guarantee the dust removal effect, and it is easy for equipment parts such as filters to be contaminated with dust, resulting in inconvenience in cleaning and poor long-term use effect. At the same time, secondary dust is easily generated during the spraying process. Summary of the invention

[0006] In order to solve the deficiencies in the prior art, the present invention provides a dust collector for TBM tunneling. The present invention avoids the problem of dust sticking to the filter screen and the dust removal structure by spraying water to reduce dust, and the like. The present invention realizes automatic cleaning and treatment of the filter mechanism and improves the cleaning effect and efficiency. The present invention can not only allow the dust to be fully mixed and treated by water, but also ensure that the dust will not stick to the inner wall of the water tank, further avoiding the problem of dust sticking.

[0007] In order to achieve the above object, the present invention adopts the following technical solution:

[0008] A dust collector for TBM tunneling comprises a body, which is a cylindrical structure, a dust suction pipe is connected to the side wall of the body, and a fan is installed on the dust suction pipe; a rotating mechanism is installed inside the body, and three filtering mechanisms are rotatably connected to the rotating mechanism, and the three filtering mechanisms are aligned with the dust suction pipe in sequence through the rotating mechanism; the bottom of the body is a water tank, and the bottom of the filtering mechanism is provided with an automatic unloading mechanism, and the automatic unloading mechanism is used to discharge dust from the filtering mechanism into the water tank at the bottom of the body.

[0009] Furthermore, the rotating mechanism includes a first motor, which is sealed and installed at the bottom of the fuselage. The output shaft of the first motor is fixedly connected to a rotating disk, and three through holes are evenly opened on the rotating disk. The filtering mechanism is fixedly installed above the through holes, and the automatic unloading mechanism is installed below the through holes.

[0010] Furthermore, the filtering mechanism includes a filter box, a vent is provided on the side of the filter box close to the fuselage, and a filter screen is provided on the side of the filter box away from the vent; the bottom of the filter box is a groove-shaped structure and the bottom opening is connected to the through hole; the inner walls of the filter box are all fitted with first scrapers, adjacent first scrapers are fixedly connected, and two opposite first scrapers are commonly fixedly connected to a transmission plate, and a screw rod is threadedly connected to the middle part of the transmission plate, and the screw rod passes through the top of the filter box, and a second motor is installed on the top of the filter box, and the output end of the second motor is fixedly connected to the screw rod.

[0011] Furthermore, the automatic unloading mechanism includes two pairs of first ear plates, the first ear plates are installed at the bottom of the rotating disk, and each pair of first ear plates is commonly fixedly connected to a first rotating rod, a first rotating cylinder is sleeved on the first rotating rod, and a baffle is fixedly connected to one side of the first rotating cylinder; a torsion spring is sleeved on the first rotating rod between the first ear plate and the first rotating cylinder, and the two ends of the torsion spring are respectively fixedly connected to the first ear plate and the first rotating cylinder; when the torsion spring is in a non-stressed state, the two baffles jointly seal the through hole.

[0012] Furthermore, a machine cover is installed on the top of the machine body, and a dust cleaning auxiliary mechanism is fixedly connected to the bottom of the machine cover, and the dust cleaning auxiliary mechanism includes a partition, which is fixedly connected to the machine cover, and a pair of second ear plates are fixedly provided at both ends of the partition, and a second rotating rod is fixedly connected between each pair of second ear plates; a second rotating cylinder is sleeved on the second rotating rod, and a brush plate is fixedly connected to one side of the second rotating cylinder; a plurality of annular rods are fixedly connected to the side wall of the brush plate, and the annular rods pass through the partition, and a limit block is fixedly provided on the end of the annular rod away from the brush plate; a return spring is sleeved on the annular rod, and the two ends of the return spring are respectively fixedly connected to the brush plate and the partition; when one of the filter mechanisms is aligned with the dust suction pipe, the dust cleaning auxiliary mechanism blocks the other filter mechanism; when the rotating disk rotates, the brush plate is moved during the rotation of the two filter mechanisms adjacent to the dust suction pipe and the dust cleaning auxiliary mechanism.

[0013] Furthermore, the output shaft of the first motor is also fixedly connected to a scraping mechanism, and the scraping mechanism includes a first gear, which is fixedly connected to the output shaft of the first motor; a transmission box is fixedly provided in the middle of the bottom of the fuselage, and the first motor is installed inside the transmission box, and the output shaft of the first motor passes through the transmission box and is arranged outward; three fixed shafts are evenly fixed on the transmission box, and second gears are rotatably connected to the fixed shafts, and the second gears are all meshed with the first gear; the three second gears are commonly meshed with an inner ring gear, and the inner ring gear abuts against the top of the transmission box; a plurality of L-shaped connecting frames are evenly fixedly connected to the outer wall of the inner ring gear, and a second scraper is installed at the end of the L-shaped connecting frame away from the inner ring gear, and the second scraper is located in the water tank at the bottom of the fuselage.

[0014] Furthermore, a water inlet is provided on the side wall of the fuselage, the water inlet is connected to a water tank at the bottom of the fuselage, and a valve is installed on the water inlet; a water outlet is provided at the bottom of the fuselage, the water outlet is connected to a water tank at the bottom of the fuselage, and a valve is installed on the water outlet.

[0015] Furthermore, a rotating base is provided at the bottom of the fuselage, and the rotating base includes a rotating groove, the middle of the rotating groove is an opening, the fuselage is located in the rotating groove and abuts against the rotating groove, a limiting ring is provided on the upper part of the side wall of the rotating groove, and a limiting groove is correspondingly provided on the outer side wall of the fuselage, and the limiting ring is rotatably connected to the limiting groove; four threaded rods are evenly fixed around the bottom of the rotating groove, a threaded barrel is screwed on the threaded rod, and a supporting foot is fixed at one end of the threaded barrel away from the threaded rod.

[0016] Furthermore, a plurality of air outlet grilles are evenly arranged on the side wall of the fuselage, the air outlet grilles are located below the rotating disk and are connected to the top of the water tank at the bottom of the fuselage, and a handle is also arranged on the side wall of the fuselage.

[0017] The present invention also claims a method for removing dust using the above-mentioned dust collector for TBM tunneling, comprising the following steps:

[0018] S1. Start the fan, which sucks the dusty air into the filter mechanism aligned with the dust suction pipe. After the dust is filtered by the filter, start the first motor, and the filter mechanism with dust rotates and moves the brush plate. The brush plate preliminarily cleans the outside of the filter and vibrates the filter. After the filter mechanism rotates, the brush plate is reset, and the dust cleaning auxiliary mechanism blocks the filter mechanism.

[0019] S2, the filter mechanism blocked by the dust cleaning auxiliary mechanism is in a static state, and the dust floating in the filter mechanism falls into the groove-shaped structure at the bottom of the filter box after being static; then the second motor is started to control the screw rod to rotate, thereby driving the first scraper to move up and down along the inner wall of the filter box to drop the dust on the filter screen and the inner wall of the filter box. When the first scraper moves to the bottom of the filter box, the first scraper acts on the baffle of the automatic unloading mechanism to make the baffle rotate along the first rotating rod, and the two baffles are opened to make the dust in the filter box fall into the water tank at the bottom of the machine body;

[0020] S3, the first motor continues to run, the filter mechanism blocked by the dust cleaning auxiliary mechanism rotates and continues to move the brush plate, the brush plate cleans the outside of the filter screen again and vibrates the filter screen, after the filter mechanism rotates, the brush plate is reset, and under the guidance of the dust cleaning auxiliary mechanism, the filter mechanism is blown by the air coming out of the filter screen near the dust suction pipe side, and the air blows off the dust remaining on the filter screen on the filter mechanism;

[0021] S4, the first motor continues to run, and S1 to S3 are repeated in a continuous cycle to clean the dust. At the same time, the first motor drives the second scraper of the scraping mechanism to continuously stir and scrape along the water tank at the bottom of the machine body, so that the dust is fully mixed with water and the dust will not stick to the inner wall of the water tank.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] (1) The present invention uses a dust suction pipe to suck dust-laden air into a filter mechanism for filtering and allowing the air to stand, and then discharges the dust into a water tank through an automatic feeding mechanism, thereby achieving dust removal and avoiding the problem of dust sticking to the filter screen and the dust removal structure by spraying water to reduce dust. Specifically, the first motor of the rotating mechanism drives the rotating disk to rotate, and the rotating disk rotates so that the three filter mechanisms are aligned with the dust suction pipe in turn. The dust-laden air enters the filter box through the air vent and is then filtered by the filter screen. The dust remains in the filter box, and then the dust is discharged into the water tank in cooperation with the automatic feeding mechanism.

[0024] (2) The present invention cooperates with the filtering mechanism and the automatic feeding mechanism. When it is necessary to process the dust in the filtering mechanism, the second motor is started to control the rotation of the screw rod, thereby driving the first scraper to move back and forth along the inner wall of the filter box to remove the dust on the filter screen and the inner wall of the filter box. When the first scraper moves to the bottom of the filter box, the first scraper acts on the baffle of the automatic feeding mechanism to make the baffle rotate along the first rotating rod. The two baffles are opened to allow the dust in the filter box to fall into the water tank at the bottom of the machine body; when the second motor controls the first scraper to move upward, the first scraper releases the action on the baffle. The two baffles are reset under the action of the torsion spring to reseal the through hole, thereby realizing automatic cleaning and processing of the filtering mechanism and avoiding the problem of dust sticking due to direct water spraying.

[0025] (3) The present invention can not only clean the outside of the filter and vibrate the filter, but also block and guide the wind direction through the structural design of the cleaning auxiliary mechanism and the cooperation with the filter mechanism. When the first motor is running to rotate the rotating disk, the corresponding filter mechanism will move the brush plate, and the brush plate will clean the outside of the filter and vibrate the filter; when the first motor stops running and one of the filter mechanisms is aligned with the dust suction pipe, the air filtered out of the filter of the filter mechanism will be blown to the other filter mechanism of the cleaning auxiliary mechanism on the same side under the guidance of the cleaning auxiliary mechanism, so that the dust remaining on the filter will be blown off, and multiple treatments will be achieved without sticking dust; at the same time, the filter mechanism blocked by the cleaning auxiliary mechanism is left to stand still under the blocking of the cleaning auxiliary mechanism so that the dust floating in the filter mechanism falls into the groove structure at the bottom of the filter box, thereby improving the cleaning effect and efficiency.

[0026] (4) The scraping mechanism of the present invention uses the meshing relationship between the first gear, the second gear and the inner gear ring through the synchronous control of the first motor, so that the inner gear ring rotates in the opposite direction to the first gear and rotates slower than the first gear, thereby achieving the second scraper connected to the inner gear ring to slowly scrape in the opposite direction in the water tank, which can not only allow the dust to be fully mixed with water and processed, but also ensure that the dust will not stick to the inner wall of the water tank, further avoiding the problem of dust sticking. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of a dust collector for TBM tunneling according to the present invention;

[0028] Figure 2 A schematic diagram of the dispersed structure of a dust collector for TBM tunneling according to the present invention;

[0029] Figure 3 A schematic diagram of the internal structure of a dust collector for TBM tunneling according to the present invention;

[0030] Figure 4A schematic diagram of a dust removal auxiliary mechanism of a dust collector for TBM tunneling according to the present invention;

[0031] Figure 5 A schematic diagram of a partially dispersed structure of a dust collector for TBM tunneling according to the present invention;

[0032] Figure 6 It is a schematic diagram of the structure of a filtering mechanism and an automatic unloading mechanism of a dust collector for TBM tunneling of the present invention;

[0033] Figure 7 A schematic diagram of the internal structure of a dust collector for TBM tunneling according to the present invention;

[0034] Figure 8 A schematic diagram of a scraping mechanism of a dust collector for TBM tunneling according to the present invention;

[0035] Fig. 9 The present invention is a schematic diagram of the structure of a rotating base of a dust collector for TBM tunneling.

[0036] The reference numerals are as follows:

[0037] Body 100; dust suction pipe 110; fan 120; air outlet grille 130; water inlet 140; handle 150; water outlet 160; cover 170; transmission box 180; fixed shaft 181; limit groove 190; rotating base 200; rotating groove 210; limit ring 220; threaded rod 230; threaded cylinder 240; dust cleaning auxiliary mechanism 300; partition 310; second ear plate 320; second rotating rod 330; brush plate 340; second rotating cylinder 341; ring rod 350; limit block 351; return spring 360 ; Filter mechanism-400; Filter box-410; Vent-411; Filter screen-412; Second motor-420; First scraper-430; Transmission plate-440; Screw-450; Rotating mechanism-500; Rotating disk-510; First motor-520; Through hole-530; Scraping mechanism-600; First gear-610; Second gear-620; Internal gear ring-630; L-shaped connecting frame-640; Second scraper-650; Automatic unloading mechanism-700; First ear plate-710; Torsion spring-720; First rotating rod 730; Baffle 740; First rotating drum 741. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the embodiments. Of course, the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0039] Although the steps in the present invention are arranged with numbers, they are not used to limit the order of the steps. Unless the order of the steps is clearly stated or the execution of a certain step requires other steps as a basis, the relative order of the steps can be adjusted. It is understood that the term "and / or" used in this article involves and covers any and all possible combinations of one or more of the associated listed items.

[0040] Example

[0041] like Figures 1 to 9 As shown, a dust collector for TBM tunneling includes a body 100, the body 100 is a cylindrical structure, a dust suction pipe 110 is connected to the side wall of the body 100, and a fan 120 is installed on the dust suction pipe 110; a rotating mechanism 500 is installed inside the body 100, and the rotating mechanism 500 is rotatably connected to three filtering mechanisms 400, and the three filtering mechanisms 400 are aligned with the dust suction pipe 110 in sequence through the rotating mechanism 500; the bottom of the body 100 is a water tank, and the bottom of the filtering mechanism 400 is provided with an automatic unloading mechanism 700, and the automatic unloading mechanism 700 is used to discharge the dust of the filtering mechanism 400 into the water tank at the bottom of the body 100.

[0042] The present invention uses the dust suction pipe 110 to suck dusty air into the filter mechanism 400 for filtering and letting it stand, and then discharges the dust into the water tank through the automatic unloading mechanism 700, which can not only achieve dust removal, but also avoid the problem of dust sticking to the filter screen and the dust removal structure by spraying water to reduce dust.

[0043] Furthermore, the rotating mechanism 500 includes a first motor 520, which is sealed and installed at the bottom of the fuselage 100. The output shaft of the first motor 520 is fixedly connected to a rotating disk 510, and three through holes 530 are evenly opened on the rotating disk 510. The filtering mechanism 400 is fixedly installed above the through holes 530, and the automatic unloading mechanism 700 is installed below the through holes 530.

[0044] Specifically, the rotating disk 510 is driven to rotate by the first motor 520 of the rotating mechanism 500. The rotating disk 510 rotates so that the three filtering mechanisms 400 are aligned with the dust suction pipe 110 in sequence. The air containing dust enters the filter box 410 through the air vent 411 and is then filtered by the filter net 412. The dust remains in the filter box 410 and is subsequently discharged into the sink through cooperation with the automatic unloading mechanism 700.

[0045] Furthermore, the filtering mechanism 400 includes a filter box 410, a vent 411 is provided on the side of the filter box 410 close to the fuselage 100, and a filter screen 412 is provided on the side of the filter box 410 away from the vent 411; the bottom of the filter box 410 is a groove-shaped structure and the bottom opening is connected to the through hole 530; the inner side walls of the filter box 410 are all fitted with first scrapers 430, adjacent first scrapers 430 are fixedly connected, and two opposite first scrapers 430 are commonly fixedly connected with a transmission plate 440, and the middle part of the transmission plate 440 is threadedly connected with a screw rod 450, and the screw rod 450 passes through the top of the filter box 410, and a second motor 420 is installed on the top of the filter box 410, and the output end of the second motor 420 is fixedly connected to the screw rod 450.

[0046] It is worth noting that the first motor 520 is a stepper motor, which can be fixedly rotated at a specified angle, such as 120°; the second motor 420 is a forward and reverse motor, which can rotate forward or reverse; at the same time, the first motor 520 and the second motor 420 of the present invention both have external power supplies and switch controls, which are not described in detail here.

[0047] Furthermore, the automatic unloading mechanism 700 includes two pairs of first ear plates 710, the first ear plates 710 are installed at the bottom of the rotating disk 510, and each pair of first ear plates 710 is commonly fixedly connected with a first rotating rod 730, the first rotating rod 730 is sleeved with a first rotating cylinder 741, and a baffle 740 is fixedly connected to one side of the first rotating cylinder 741; the first rotating rod 730 between the first ear plate 710 and the first rotating cylinder 741 is sleeved with a torsion spring 720, and the two ends of the torsion spring 720 are respectively fixedly connected to the first ear plate 710 and the first rotating cylinder 741; when the torsion spring 720 is in a non-stressed state, the two baffles 740 jointly seal the through hole 530.

[0048] The present invention cooperates with the filter mechanism 400 and the automatic feeding mechanism 700. When the dust in the filter mechanism 400 needs to be processed, the second motor 420 is started to control the screw rod 450 to rotate, thereby driving the first scraper 430 to reciprocate up and down along the inner wall of the filter box 410 to drop the dust on the filter screen 412 and the inner wall of the filter box 410. When the first scraper 430 moves to the bottom of the filter box 410, the first scraper 430 acts on the baffle 740 of the automatic feeding mechanism 700, so that the baffle 740 The plate 740 rotates along the first rotating rod 730, and the two baffles 740 open to allow the dust in the filter box 410 to fall into the water tank at the bottom of the fuselage 100; when the second motor 420 controls the first scraper 430 to move upward, the first scraper 430 releases the effect on the baffle 740, and the two baffles 740 are reset under the action of the torsion spring 720 to re-seal the through hole 530, thereby realizing automatic cleaning and treatment of the filter mechanism 400, and avoiding the problem of dust sticking due to direct water spraying.

[0049] It is worth noting that when the two baffles 740 seal the through hole 530 , it is not necessary to achieve complete sealing.

[0050] Furthermore, a cover 170 is installed on the top of the machine body 100, and a dust cleaning auxiliary mechanism 300 is fixedly connected to the bottom of the cover 170. The dust cleaning auxiliary mechanism 300 includes a partition 310, and the partition 310 is fixedly connected to the cover 170. A pair of second ear plates 320 are fixedly provided at both ends of the partition 310, and a second rotating rod 330 is fixedly connected between each pair of second ear plates 320; a second rotating cylinder 341 is sleeved on the second rotating rod 330, and a brush plate 340 is fixedly connected to one side of the second rotating cylinder 341; a plurality of rings are fixedly connected to the side wall of the brush plate 340. shaped rod 350, the annular rod 350 passes through the partition 310, and a limit block 351 is fixedly provided at one end of the annular rod 350 away from the brush plate 340; a return spring 360 is sleeved on the annular rod 350, and the two ends of the return spring 360 are respectively fixedly connected to the brush plate 340 and the partition 310; when one of the filter mechanisms 400 is aligned with the dust suction pipe 110, the cleaning auxiliary mechanism 300 blocks the other filter mechanism 400; when the rotating disk 510 rotates, the brush plate 340 is moved during the rotation of the two filter mechanisms 400 adjacent to the dust suction pipe 110 and the cleaning auxiliary mechanism 300.

[0051] The present invention can clean the outer side of the filter screen 412 and vibrate the filter screen 412 through the structural design of the dust cleaning auxiliary mechanism 300 and in cooperation with the filter mechanism 400, and can also play the role of blocking and guiding the wind direction. When the first motor 520 is running to rotate the rotating disk 510, the corresponding filter mechanism 400 will move the brush plate 340, and the brush plate 340 will clean the outer side of the filter screen 412 and vibrate the filter screen 412; when the first motor 520 stops running, one of the filter mechanisms 400 and the dust suction pipe 110 are When aligned, the air filtered out of the filter net 412 of the filter mechanism 400 will be blown to the other filter mechanism 400 of the cleaning auxiliary mechanism 300 on the same side under the guidance of the cleaning auxiliary mechanism 300, so as to blow off the dust remaining on the filter net 412, thereby achieving multiple treatments without sticking dust; at the same time, the filter mechanism 400 blocked by the cleaning auxiliary mechanism 300 is left still under the blocking of the cleaning auxiliary mechanism 300, so that the dust floating in the filter mechanism 400 falls into the groove structure at the bottom of the filter box 410, thereby improving the cleaning effect and efficiency.

[0052] It is worth noting that the specific cleaning path of the present invention is that when the filter mechanism 400 is aligned with the dust suction pipe 110, the filter box 410 and the filter screen 412 filter and collect the dust; when the filter mechanism 400 rotates 120°, the filter mechanism 400 moves the brush plate 340 of the dust cleaning auxiliary mechanism 300, and the brush plate filter screen 412 preliminarily cleans the outer side of the filter screen 412 and vibrates the filter screen 412; when the filter mechanism 400 rotates 120° and is in a state of being blocked by the dust cleaning auxiliary mechanism 300, the filter mechanism 400 is stationary, and the dust in the filter box 410 is settled and falls into the groove at the bottom of the filter box 410. shaped structure, and then the first scraper 430 is used to scrape the dust inside the filter box 410 and the filter screen 412. During the scraping process, some dust will remain on the filter screen 412; at this time, the filter mechanism 400 continues to rotate 120°, and is acted on by the brush plate 340 again. After the rotation is completed, under the guidance of the cleaning auxiliary mechanism 300, air blows through the filter screen 412 of the filter mechanism 400 to blow off the remaining dust on the filter screen 412. In this way, the combined action of the brush plate 340, the first scraper 430, and the blowing can achieve a comprehensive treatment from outside to inside and then from inside to outside, thereby deeply improving the cleaning effect and efficiency.

[0053] It is worth noting that when the filter mechanism 400 is blown by air, the two baffles 740 below the filter mechanism 400 may be in an open state.

[0054] Furthermore, the output shaft of the first motor 520 is also fixedly connected to a scraping mechanism 600, and the scraping mechanism 600 includes a first gear 610, and the first gear 610 is fixedly connected to the output shaft of the first motor 520. A transmission box 180 is fixedly arranged in the middle of the bottom of the fuselage 100, and the first motor 520 is installed inside the transmission box 180, and the output shaft of the first motor 520 passes through the transmission box 180 and is arranged outward; three fixed shafts 181 are evenly fixed on the transmission box 180. A second gear 620 is rotatably connected to the fixed shaft 181, and each of the second gears 620 is meshed with the first gear 610; three of the second gears 620 are commonly meshed with an inner gear ring 630, and the inner gear ring 630 abuts against the top of the transmission box 180; a plurality of L-shaped connecting frames 640 are evenly and fixedly connected to the outer wall of the inner gear ring 630, and a second scraper 650 is installed at one end of the L-shaped connecting frame 640 away from the inner gear ring 630, and the second scraper 650 is located in the water tank at the bottom of the fuselage 100.

[0055] The scraping mechanism 600 of the present invention uses the meshing relationship among the first gear 610, the second gear 620 and the inner gear ring 630 through the synchronous control of the first motor 520, so that the inner gear ring 630 rotates in the opposite direction to the first gear 610 and rotates slower than the first gear 610, thereby achieving the second scraper 650 connected to the inner gear ring 630 to slowly scrape in the opposite direction in the water tank, which can not only allow the dust to be fully mixed with water, but also ensure that the dust will not stick to the inner wall of the water tank, further avoiding the problem of dust sticking.

[0056] Furthermore, a water inlet 140 is provided on the side wall of the body 100, the water inlet 140 is connected to the water tank at the bottom of the body 100, and a valve is installed on the water inlet 140; a water outlet 160 is provided at the bottom of the body 100, the water outlet 160 is connected to the water tank at the bottom of the body 100, and a valve is installed on the water outlet 160. The water inlet 140 is used to supply water to the water tank, and the water outlet 160 is used to regularly discharge water mixed with dust.

[0057] Furthermore, a rotating base 200 is provided at the bottom of the fuselage 100, and the rotating base 200 includes a rotating groove 210, and the middle of the rotating groove 210 is an opening. The fuselage 100 is located in the rotating groove 210 and abuts against the rotating groove 210. A limiting ring 220 is provided on the upper part of the side wall of the rotating groove 210, and a limiting groove 190 is correspondingly provided on the outer side wall of the fuselage 100, and the limiting ring 220 is rotatably connected to the limiting groove 190; four threaded rods 230 are evenly fixed around the bottom of the rotating groove 210, and a threaded barrel 240 is screwed on the threaded rod 230, and a supporting foot is fixed on the end of the threaded barrel 240 away from the threaded rod 230.

[0058] Through the structural design of the rotating base 200, when the dust removal direction needs to be adjusted, it can be quickly adjusted by simply rotating the body 100, which improves the dust removal efficiency and is easy to operate; through the cooperation of the threaded rod 230 and the threaded barrel 240, when the rotating base 200 is installed unevenly, the installation stability of the rotating base 200 can be achieved by rotating the threaded barrel 240.

[0059] Furthermore, a plurality of air outlet grilles 130 are evenly arranged on the side wall of the body 100, the air outlet grilles 130 are located below the rotating disk 510 and are connected to the top of the water tank at the bottom of the body 100, and a handle 150 is also arranged on the side wall of the body 100. Exhaust is carried out through the air outlet grilles 130, and the dust collector is conveniently carried through the handle 150.

[0060] A method for removing dust using the above-mentioned dust collector for TBM tunneling comprises the following steps:

[0061] S1. Start the fan 120, which sucks the dusty air into the filter mechanism 400 aligned with the dust suction pipe 110. After the dust is filtered by the filter screen 412, start the first motor 520, and the filter mechanism 400 filled with dust rotates and moves the brush plate 340. The brush plate 340 preliminarily cleans the outside of the filter screen 412 and vibrates the filter screen 412. After the filter mechanism 400 rotates 120°, the brush plate 340 is reset, and the dust cleaning auxiliary mechanism 300 blocks the filter mechanism 400.

[0062] S2, the filter mechanism 400 blocked by the dust cleaning auxiliary mechanism 300 is in a static state, and the dust floating in the filter mechanism 400 falls into the groove structure at the bottom of the filter box 410 after being static; then the second motor 420 is started, and the screw rod 450 is controlled to rotate, thereby driving the first scraper 430 to move up and down along the inner wall of the filter box 410 to drop the dust on the filter screen 412 and the inner wall of the filter box 410, and when the first scraper 430 moves to the bottom of the filter box 410, the first scraper 430 acts on the baffle 740 of the automatic unloading mechanism 700, so that the baffle 740 rotates along the first rotating rod 730, and the two baffles 740 are opened to make the dust in the filter box 410 fall into the water tank at the bottom of the fuselage 100;

[0063] S3, the first motor 520 continues to run, the filter mechanism 400 blocked by the dust cleaning auxiliary mechanism 300 rotates and continues to move the brush plate 340, the brush plate 340 cleans the outer side of the filter screen 412 again and vibrates the filter screen 412, after the filter mechanism 400 rotates 120 degrees, the brush plate 340 is reset, under the guidance of the dust cleaning auxiliary mechanism 300, the filter mechanism 400 is blown by the air coming out of the filter screen 412 on the side of the dust suction pipe 110, and the air blows off the dust remaining on the filter screen 412 on the filter mechanism 400;

[0064] S4, the first motor 520 keeps running, and S1 to S3 are repeated in a continuous cycle to clean the dust. At the same time, the first motor 520 drives the second scraper 650 of the scraping mechanism 600 to continuously stir and scrape along the water tank at the bottom of the fuselage 100, so that the dust is fully mixed with water and the dust will not stick to the inner wall of the water tank.

[0065] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and changes without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A dust collector for TBM tunneling, characterized in that: The invention comprises a body (100), wherein the body (100) is a cylindrical structure, a dust suction pipe (110) is connected to the side wall of the body (100), and a fan (120) is installed on the dust suction pipe (110); a rotating mechanism (500) is installed inside the body (100), and the rotating mechanism (500) is rotatably connected to three filter mechanisms (400), and the three filter mechanisms (400) are aligned with the dust suction pipe (110) in sequence through the rotating mechanism (500); the bottom of the body (100) is a water tank, and the bottom of the filter mechanism (400) is provided with an automatic unloading mechanism (700), and the automatic unloading mechanism (700) is used to discharge dust from the filter mechanism (400) into the water tank at the bottom of the body (100); The rotating mechanism (500) comprises a first motor (520), the first motor (520) is sealed and mounted on the bottom of the body (100), the output shaft of the first motor (520) is fixedly connected to a rotating disk (510), three through holes (530) are evenly formed on the rotating disk (510), the filtering mechanism (400) is fixedly mounted above the through holes (530), and the automatic unloading mechanism (700) is mounted below the through holes (530); The filtering mechanism (400) comprises a filtering box (410), a vent (411) being provided on a side of the filtering box (410) close to the body (100), and a filter screen (412) being provided on a side of the filtering box (410) away from the vent (411); the bottom of the filtering box (410) is a groove-shaped structure, and the bottom opening is communicated with the through hole (530); first scrapers (430) are attached to the inner side walls of the filtering box (410), adjacent first scrapers (430) are fixedly connected, and two opposing first scrapers (430) are commonly fixedly connected to a transmission plate (440), a screw rod (450) is threadedly connected to the middle of the transmission plate (440), and the screw rod (450) passes through the top of the filtering box (410); a second motor (420) is installed on the top of the filtering box (410), and the output end of the second motor (420) is fixedly connected to the screw rod (450); A cover (170) is installed on the top of the machine body (100), and a dust cleaning auxiliary mechanism (300) is fixedly connected to the bottom of the cover (170). The dust cleaning auxiliary mechanism (300) comprises a partition (310), and the partition (310) is fixedly connected to the cover (170). A pair of second ear plates (320) are fixedly provided at both left and right ends of the partition (310), and a second rotating rod (330) is fixedly connected between each pair of second ear plates (320); a second rotating cylinder (341) is sleeved on the second rotating rod (330), and a brush plate (340) is fixedly connected to one side of the second rotating cylinder (341); a plurality of annular rods (350) are fixedly connected to the side wall of the brush plate (340). ), the annular rod (350) passes through the partition (310), and a limit block (351) is fixedly provided at one end of the annular rod (350) away from the brush plate (340); a return spring (360) is sleeved on the annular rod (350), and the two ends of the return spring (360) are respectively fixedly connected to the brush plate (340) and the partition (310); when one of the filter mechanisms (400) is aligned with the dust suction pipe (110), the dust cleaning auxiliary mechanism (300) blocks the other filter mechanism (400); when the rotating disk (510) rotates, the brush plate (340) is moved during the rotation of the two filter mechanisms (400) adjacent to the dust suction pipe (110) and the dust cleaning auxiliary mechanism (300); The automatic unloading mechanism (700) comprises two pairs of first ear plates (710), wherein the first ear plates (710) are mounted on the bottom of the rotating disk (510), and each pair of first ear plates (710) is commonly fixedly connected to a first rotating rod (730), and a first rotating cylinder (741) is sleeved on the first rotating rod (730), and a baffle (740) is fixedly connected to one side of the first rotating cylinder (741); a torsion spring (720) is sleeved on the first rotating rod (730) between the first ear plates (710) and the first rotating cylinder (741), and two ends of the torsion spring (720) are respectively fixedly connected to the first ear plates (710) and the first rotating cylinder (741); when the torsion spring (720) is in a non-stressed state, the two baffles (740) jointly seal the through hole (530); The output shaft of the first motor (520) is also fixedly connected to a scraping mechanism (600), the scraping mechanism (600) comprising a first gear (610), the first gear (610) being fixedly connected to the output shaft of the first motor (520), a transmission box (180) being fixedly provided in the middle of the bottom of the body (100), the first motor (520) being installed inside the transmission box (180), the output shaft of the first motor (520) passing through the transmission box (180) and being arranged outward; three fixed shafts (181) are evenly fixedly provided on the transmission box (180), the fixed shafts (181) being arranged to rotate with the first gear (610) and the output shaft ... A second gear (620) is rotatably connected to the fixed shaft (181), and each of the second gears (620) is meshed with the first gear (610); three of the second gears (620) are commonly meshed with an inner gear ring (630), and the inner gear ring (630) abuts against the top of the transmission box (180); a plurality of L-shaped connecting frames (640) are evenly and fixedly connected to the outer side wall of the inner gear ring (630), and a second scraper (650) is installed at one end of the L-shaped connecting frame (640) away from the inner gear ring (630), and the second scraper (650) is located in a water tank at the bottom of the fuselage (100).

2. A dust collector for TBM tunneling according to claim 1, characterized in that: A water inlet (140) is provided on the side wall of the fuselage (100), the water inlet (140) is in communication with a water tank at the bottom of the fuselage (100), and a valve is installed on the water inlet (140); a water outlet (160) is provided on the bottom of the fuselage (100), the water outlet (160) is in communication with a water tank at the bottom of the fuselage (100), and a valve is installed on the water outlet (160).

3. A dust collector for TBM tunneling according to claim 1, characterized in that: A rotating base (200) is provided at the bottom of the body (100), the rotating base (200) comprising a rotating groove (210), the middle of the rotating groove (210) being an opening, the body (100) being located in the rotating groove (210) and abutting against the rotating groove (210), a limiting ring (220) being provided at the upper part of the side wall of the rotating groove (210), a limiting groove (190) being correspondingly provided at the outer side wall of the body (100), the limiting ring (220) being rotatably connected to the limiting groove (190); four threaded rods (230) are evenly fixedly provided around the bottom of the rotating groove (210), a threaded barrel (240) being screwed onto the threaded rod (230), and a supporting foot being fixedly provided at one end of the threaded barrel (240) away from the threaded rod (230).

4. A dust collector for TBM tunneling according to claim 1, characterized in that: A plurality of air outlet grilles (130) are evenly arranged on the side wall of the fuselage (100); the air outlet grilles (130) are located below the rotating disk (510) and are connected to the top of the water tank at the bottom of the fuselage (100); and a handle (150) is also arranged on the side wall of the fuselage (100).

5. A method for removing dust using the dust collector for TBM tunneling according to any one of claims 1 to 4, characterized in that: The steps include: S1. Start the fan (120), the fan (120) sucks the dusty air into the filter mechanism (400) aligned with the dust suction pipe (110), and after the dust is filtered by the filter screen (412), start the first motor (520), the filter mechanism (400) filled with dust rotates and moves the brush plate (340), the brush plate (340) preliminarily cleans the outside of the filter screen (412) and vibrates the filter screen (412), and after the filter mechanism (400) rotates 120°, the brush plate (340) is reset, and the dust cleaning auxiliary mechanism (300) blocks the filter mechanism (400); S2, the filter mechanism (400) blocked by the dust cleaning auxiliary mechanism (300) is in a static state, and the dust floating in the filter mechanism (400) falls into the groove-shaped structure at the bottom of the filter box (410) after being static; then the second motor (420) is started to control the screw rod (450) to rotate, thereby driving the first scraper (430) to move up and down along the inner wall of the filter box (410) to drop the dust on the filter screen (412) and the inner wall of the filter box (410); when the first scraper (430) moves to the bottom of the filter box (410), the first scraper (430) acts on the baffle (740) of the automatic unloading mechanism (700), causing the baffle (740) to rotate along the first rotating rod (730), and the two baffles (740) are opened to cause the dust in the filter box (410) to fall into the water tank at the bottom of the machine body (100); S3, the first motor (520) continues to operate, the filter mechanism (400) blocked by the dust cleaning auxiliary mechanism (300) rotates and continues to move the brush plate (340), the brush plate (340) cleans the outside of the filter screen (412) again and vibrates the filter screen (412), after the filter mechanism (400) rotates 120°, the brush plate (340) is reset, and under the guidance of the dust cleaning auxiliary mechanism (300), the filter mechanism (400) is blown by the air coming out of the filter screen (412) on the side of the dust suction pipe (110), and the air blows off the dust remaining on the filter screen (412) on the filter mechanism (400); S4, the first motor (520) continues to operate, and S1 to S3 are repeated in a continuous cycle to perform dust cleaning. At the same time, the first motor (520) drives the second scraper (650) of the scraping mechanism (600) to continuously stir and scrape along the water tank at the bottom of the body (100), so that the dust is fully mixed with the water and the dust does not stick to the inner wall of the water tank.

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