A fully sealed self-cleaning conveyor

Abstract

The present invention belongs to the technical field of sand and stone crushing and transportation equipment; specifically discloses a fully sealed self-cleaning conveyor, including a head frame and a tail frame; a conveyor belt is arranged between the head frame and the tail frame, side walls are arranged on both sides of the conveyor belt, an upper cover is arranged above the conveyor belt, the upper cover is sealed and connected to the side wall, a bottom plate is arranged at the bottom of the side wall, and the bottom plate is sealed and connected to the side wall; a cleaning mechanism is arranged at the bottom of the conveyor belt, the cleaning mechanism reciprocates and automatically cleans the scattered materials on the bottom plate, and the cleaning mechanism is provided with a cleaning driving device; the driving mechanism drives the cleaning mechanism to reciprocate on the bottom plate, the cleaning mechanism includes a scraper, when the cleaning mechanism moves toward the head frame, the scraper is put down to scrape the material, and when the cleaning mechanism moves toward the tail frame, the scraper is retracted and does not scrape the material; the sealing performance is good to prevent dust from overflowing, the conveyor fully seals and connects the upper and lower equipment, reduces the air intake entering the whole system, reduces the use of the dust collector, and reduces the power consumption.

Description

Technical Field

[0001] The invention belongs to the technical field of sand and gravel crushing and transportation equipment, and in particular relates to a fully sealed self-cleaning conveyor. Background Art

[0002] Current conveyor belts are all normally open structures, and are generally partially sealed at the feed and discharge points, with the rest of the belts exposed to the outside. Although sealing devices are installed at locations with high dust levels, dust will still overflow during the conveying process.

[0003] At the same time, dust collection equipment will be added at dust-generating points. Since the overall sealing is not tight and there are many air leakage points, a large amount of air will be consumed to collect dust, and the effect is not good.

[0004] Dust will stick to the conveyor belt surface. When the conveyor belt returns, some of the dust will fall to the ground, polluting the overall environment and requiring manual cleaning. Severe pollution, high energy consumption of supporting dust removal equipment, and difficulty in manual cleaning are great problems for existing conveying equipment. Summary of the invention

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a fully sealed self-cleaning conveyor, which can seal the entire conveying process to prevent dust from spilling out, thereby solving at least one of the problems of the background technology.

[0006] The present invention provides the following technical solutions:

[0007] A fully sealed self-cleaning conveyor comprises a head frame and a tail frame;

[0008] A conveyor belt is arranged between the head frame and the tail frame, side walls are arranged on both sides of the conveyor belt, an upper cover is arranged above the conveyor belt, the upper cover is sealed and connected to the side wall, a bottom plate is arranged at the bottom of the side wall, and the bottom plate is sealed and connected to the side wall;

[0009] A cleaning mechanism is provided at the bottom of the conveyor belt, which reciprocates to automatically clean the materials scattered on the bottom plate, and the cleaning mechanism is provided with a cleaning drive device;

[0010] The driving mechanism drives the cleaning mechanism to move back and forth on the bottom plate. When the cleaning mechanism moves toward the head frame, the scraper is lowered to scrape the material. When the cleaning mechanism moves toward the tail frame, the scraper is retracted and does not scrape the material.

[0011] Preferably, the head frame and the tail frame are sealed and connected to the bottom plate, the upper cover and the side wall; a driving roller is rotatably provided inside the head frame, and the driving roller is rotatably connected to the head frame; a redirecting roller is provided inside the tail frame, and the redirecting roller is rotatably connected to the tail frame; a conveyor belt is arranged between the driving roller and the rotating roller, and the conveyor belt circulates and rotates between the driving roller and the rotating roller; an upper roller bracket is connected to the inner wall of the side wall, a lower roller bracket is provided below the upper roller bracket, a plurality of upper centering rollers are rotatably provided on the upper roller bracket, a lower centering roller is rotatably provided on the lower roller bracket, and the conveyor belt is in frictional contact with the upper centering roller and the lower centering roller.

[0012] Preferably, the cleaning drive device is arranged at one end of the tail frame, and the drive device includes a driving pulley, which is connected to a reducer and a motor, and a steel wire rope is wound on the driving pulley; a redirecting pulley is provided at one end of the head frame, and the steel wire rope rotates on the driving pulley and the redirecting pulley. During the rotation process, the steel wire rope is distributed in upper and lower directions. The steel wire rope close to the bottom plate has two free ends, and the two free ends of the steel wire rope are separately connected to the cleaning mechanism, so that the steel wire rope drives the cleaning mechanism to move in both forward and reverse directions.

[0013] Preferably, the driving device includes a driving frame, which is mounted on the tail frame, a rope pulley shaft is provided on the driving frame, the rope pulley shaft is rotatably connected to the driving frame through a set bearing, the bearing is mounted on the driving frame through a set bolt and a bearing seat, a C-type key is provided on the rope pulley shaft, and the rope pulley shaft is keyed to the active rope pulley through the C-type key; a coupling shaft is connected to one end of the rope pulley shaft, and the coupling shaft is connected to the reduction motor; a tensioning wheel group is provided on the side of the active rope pulley away from the tail frame, and the tensioning wheel group includes an upper tensioning wheel and a lower tensioning wheel, and the upper tensioning wheel and the lower tensioning wheel are connected to each other. The tension wheels are located in the same vertical plane and are arranged at an angle. The tension wheel group is provided with a tension wheel slide, which is slidably connected to the driving frame. A slide groove is provided on the driving frame, and the tension wheel slide is arranged in the slide groove. The tension wheel slide is provided with multiple compression springs. A guide rod is provided in the compression spring. The guide rod passes through the tension wheel slide. The other end of the guide rod is pressed on the tension wheel slide by a set nut, and the other end of the guide rod is connected to the tension wheel group; the steel wire rope is wound between the active rope pulley and the upper tension wheel and the lower tension wheel.

[0014] Preferably, the other end of the tensioning wheel slide is connected to a tensioning frame, a screw rod is provided inside the tensioning frame, one end of the screw rod is rotatably connected to the driving frame, and the other end is spirally rotatably connected to the tensioning frame, a support rod sleeve is provided on the screw rod, and a plurality of compression springs are provided between the support rod sleeve and the tensioning frame.

[0015] Preferably, the cleaning mechanism includes a frame, a plurality of sliders are provided at the bottom of the frame, the sliders are made of polyurethane, a front scraper is provided at one end of the frame close to the cleaning drive device, a scraper plate is installed on the front scraper, an open pin is provided on one side of the front scraper close to the bottom, a pin shaft is provided in the open pin, and the front scraper is rotatably connected to the frame through the provided pin shaft; a rotating pressure block is connected to the top of the front scraper, and a rope hole is provided on the rotating pressure block; a connecting rod is provided near the bottom position of the frame, the connecting rod is provided with a rotating shaft, the connecting rod is rotatably connected to the frame through the rotating shaft, and the rotating pressure block abuts against the connecting rod during rotation, and the end of the frame away from the front scraper is rotatably connected to the rear scraper, and the connecting rod can abut against the rear scraper during rotation, and the rear scraper is lifted upward; a tension spring is connected to the side of the rotating pressure block away from the scraper plate, and the other end of the tension spring is connected to a bracket provided on the frame; both free ends of the wire rope are connected to the rope hole of the rotating pressure block.

[0016] Preferably, at least one material guide trough is connected above the upper cover, and a material guide mechanism is provided on the inner side wall of the side wall below the material guide trough, and the material guide mechanism guides the conveyed material evenly to the conveyor belt.

[0017] Preferably, the material guiding mechanism includes at least one guide plate and at least one fan plate, and elastic parts are provided between the multiple guide plates. The elastic parts are vibrated by the pressure of the materials, and the vibration of the elastic parts drives the fan plates to form airflow movement. The moving airflow blows the particulate materials and dust splashed onto the conveyor belt and sent them to the conveyor belt.

[0018] Preferably, the material guiding mechanism also includes two symmetrically arranged fixed plates, the fixed plates are connected to the side walls, the fixed plates are rotatably connected to the first guide plate, the lower side of the first guide plate is connected to the first elastic member, the other end of the first elastic member is connected to the second guide plate, one end of the second guide plate is rotatably connected to the side wall, and the width of the second guide plate is greater than the width of the first guide plate; a second elastic member is provided at one end of the second guide plate close to the conveyor belt, the other end of the second elastic member is connected to a fanning plate, and one end of the fanning plate is rotatably connected to the second guide plate.

[0019] Preferably, the lower side of the second guide plate is provided with an arc-shaped cylinder, a third elastic member is provided inside the arc-shaped cylinder, the third elastic member is connected to an arc-shaped rod, and the arc-shaped rod is slidably connected inside the arc-shaped cylinder; the other end of the arc-shaped rod is rotatably connected to a horizontal rod, and a sealing box is provided for the horizontal rod to be sealed and slidably arranged. The sealing box is arranged on the side wall, and a sealing movable plate is provided inside the sealing box, and the sealing movable plate is slidably and sealedly connected inside the sealing box, and the sealing box is provided with an air outlet, and the air outlet is connected to an air outlet pipe, and the air outlet pipe is provided with a fixed rod, and the fixed rod is connected to the side wall; an air outlet door is provided inside the air outlet pipe, and the air outlet door is rotatably connected to the outer wall of the sealing box, and the air outlet door can block the air outlet; the other end of the air outlet pipe is connected to a nozzle, and the nozzle is arranged at the edge of the conveyor belt; the sealing box is also provided with an air inlet pipe, and the air inlet pipe is provided with an air inlet door, and the air inlet door is rotatably arranged on the inner wall of the sealing box, and a connecting hole is provided on the side of the sealing box away from the arc-shaped rod, and the connecting hole is connected to the outside atmosphere.

[0020] Preferably, the scraper plate is made of one or more of polyurethane, nylon, and engineering plastics.

[0021] Preferably, an observation door is provided on the side wall, through which the conveyor belt can be inspected and maintained; a negative pressure pipe is provided between the upper cover and the conveyor belt, and a negative pressure air hole is provided on the negative pressure pipe, and the outer end of the negative pressure pipe is connected to a dust collecting bag and a dust collecting device for dust collection; before using this technical solution, the variable frequency motor of the dust collecting device is a 280KW variable frequency motor, the central control Hz frequency is 48, and the motor current is 420A; after using this technical solution, the central control Hz frequency of the variable frequency motor is 44, and the electrode current is 360A, which can save 30KW per hour, and can save 300KW per day based on 10 hours of production, and can save 240 yuan per day based on 0.8 yuan per kilowatt-hour, and can save 72,000 yuan in electricity bills per year based on 300 days of production per year.

[0022] Preferably, the redirecting roller is provided with a tensioning assembly, which includes a tensioning frame, which is arranged on the outside of the side wall. The tensioning frame is provided with a screw rod, a spring is provided on the screw rod, the screw rod passes through the tensioning frame and is provided with a nut, and the other end of the screw rod is connected to the redirecting roller.

[0023] Preferably, the conveyor belt can be set as a double-layer structure or a multi-layer structure; the side wall and the upper cover and the bottom plate are welded or bolted to form an effective seal; the width of the bottom plate is greater than the width between the two side walls, and a railing is provided on the bottom plate, and people can pass on the bottom plate outside the side wall.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention provides a fully sealed self-cleaning conveyor with good overall sealing performance. The dust dropped on the ground by the conveyor belt can be collected by the cleaning mechanism and transported to the dust collecting box for unified treatment, which has higher cleaning efficiency. The conveyor can fully seal and connect the upper and lower equipment, reduce the air intake amount entering the whole system, reduce the use of dust collectors, and reduce power consumption. It not only effectively prevents dust, reduces the power of the system dust removal equipment, improves energy efficiency, reduces the repair and maintenance costs of the equipment, but also further improves the transportation efficiency of sand and gravel aggregates. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0027] Figure 1It is a front view of the conveyor structure of the present invention.

[0028] Figure 2 It is a left view of the conveyor structure of the present invention.

[0029] Figure 3 It is a partial top view of the conveyor of the present invention.

[0030] Figure 4 It is a right view of the conveyor structure of the present invention.

[0031] Figure 5 It is a structural schematic diagram of the scraping state of the scraper plate of the cleaning mechanism of the present invention.

[0032] Figure 6 It is a structural schematic diagram of the cleaning mechanism of the present invention when the scraper plate is lifted up.

[0033] Figure 7 It is a top view of a cleaning mechanism of the present invention.

[0034] Figure 8 It is a front view of a cleaning drive device of the present invention.

[0035] Fig. 9 It is a top view of the cleaning drive device of the present invention.

[0036] Fig.10 It is a schematic diagram of the cross-sectional structure of the material guide trough position of the conveyor of the present invention.

[0037] Fig.11 It is a partial schematic diagram of the material guiding mechanism of the present invention.

[0038] Fig.12 The present invention Fig.11 A is a schematic diagram of the partially enlarged structure.

[0039] Fig.13 The present invention Fig.12 B is a schematic diagram of the local enlarged structure. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 technicians in this field without creative work are within the scope of protection of the present invention.

[0041] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0043] Embodiment 1:

[0044] refer to Figure 1-9 , a fully sealed self-cleaning conveyor, comprising a head frame 1 and a tail frame 2;

[0045] A conveyor belt 19 is provided between the head frame 1 and the tail frame 2, and side walls 14 are provided on both sides of the conveyor belt 19. An upper cover 12 is provided above the conveyor belt 19, and the upper cover 12 is sealed with the side wall 14. A bottom plate 13 is provided at the bottom of the side wall 14, and the bottom plate 13 is sealed with the side wall 14; a cleaning mechanism 4 is provided at the bottom of the conveyor belt 19, and the cleaning mechanism 4 reciprocates to automatically clean the scattered materials on the bottom plate 13, and the cleaning mechanism 4 is provided with a cleaning drive device 3; the driving mechanism drives the cleaning mechanism 4 to reciprocate on the bottom plate 13, and the cleaning mechanism 4 includes a scraper. When the cleaning mechanism 4 moves toward the head frame 1, the scraper is put down to scrape the material, and when the cleaning mechanism 4 moves toward the tail frame 2, the scraper is retracted and does not scrape the material.

[0046] The head frame 1 and the tail frame 2 are sealed and connected to the bottom plate 13, the upper cover 12 and the side wall 14; a driving roller 17 is rotatably provided inside the head frame 1, and the driving roller 17 is driven by a driving motor, and the driving roller 17 is rotatably connected to the head frame 1, and a redirecting roller 18 is provided inside the tail frame 2, and the redirecting roller 18 is rotatably connected to the tail frame 2, and a conveyor belt 19 is arranged between the driving roller 17 and the rotating roller, and the conveyor belt 19 circulates and rotates between the driving roller 17 and the rotating roller; an upper roller bracket 5 is connected to the inner wall of the side wall 14, and a lower roller bracket is provided below the upper roller bracket 5, and a plurality of upper centering rollers 7 are rotatably provided on the upper roller bracket 5, and a lower centering roller 8 is rotatably provided on the lower roller bracket 6, and the conveyor belt 19 is in frictional contact with the upper centering roller 7 and the lower centering roller 8.

[0047] The cleaning drive device 3 is arranged at one end of the tail frame 2, and the drive device includes a driving pulley 33, which is connected to a reducer 35 and a motor 36, and a wire rope 322 is wound around the driving pulley 33; a redirecting pulley is provided at one end of the head frame 1, and the wire rope 322 rotates on the driving pulley 33 and the redirecting pulley. The wire rope 322 is distributed in two upper and lower directions during the rotation process. The wire rope 322 close to the bottom plate 13 has two free ends, and the two free ends of the wire rope 322 are separately connected to the cleaning mechanism 4, so that the wire rope 322 drives the cleaning mechanism 4 to move in both the forward and reverse directions.

[0048] The driving device includes a driving frame 31, which is mounted on the tail frame 2. A protective cover 311 is provided on the top of the driving frame 31. A rope pulley shaft 32 is provided on the driving frame 31. The rope pulley shaft 32 is rotatably connected to the driving frame 31 through a bearing 318. The bearing 318 is mounted on the driving frame 31 through a bolt 319 and a bearing 318 seat. A C-type key 316 is provided on the rope pulley shaft 32. The rope pulley shaft 32 is bonded to the driving rope pulley 33 through the C-type key 316. A coupling shaft 317 is connected to one end of the rope pulley shaft 32, and the coupling shaft 317 is connected to the reducer. A tensioning wheel group 38 is provided on the side of the driving rope pulley 33 away from the tail frame 2. The tensioning wheel group 38 includes an upper The tensioning wheel and the lower tensioning wheel, the upper tensioning wheel and the lower tensioning wheel are located in the same vertical plane and are arranged at an angle. The tensioning wheel group 38 is provided with a tensioning wheel slide 37, the tensioning wheel slide 37 is slidably connected to the driving frame 31, and a slide groove is opened on the driving frame 31. The tensioning wheel slide 37 is arranged in the slide groove. The tensioning wheel slide 37 is provided with a plurality of compression springs 320, and a guide rod is arranged in the compression spring 320. The guide rod passes through the tensioning wheel slide 37, and the other end of the guide rod is pressed on the tensioning wheel slide 37 by a nut 321, and the other end of the guide rod is connected to the tensioning wheel group 38; the wire rope 322 is wound between the active rope pulley 33 and the upper tensioning wheel and the lower tensioning wheel. The other end of the tension wheel slide 37 is connected to the tension frame 39, and a screw rod 313 is arranged inside the tension frame 39. One end of the screw rod 313 is rotatably connected to the driving frame 31, and the other end is spirally rotatably connected to the tension frame 39. A support rod sleeve 310 is arranged on the screw rod 313, and a plurality of compression springs 323 are arranged between the support rod sleeve 310 and the tension frame 39. A dust receiving box 312 is arranged at the bottom of the driving frame 31, and an ash receiving hopper 34 is arranged in the dust receiving box 312. The ash receiving hopper 34 can be taken out of the dust receiving box 312, and the ash receiving hopper collects dust adhering to the wire rope.

[0049] The cleaning mechanism 4 includes a frame 41, a plurality of sliders 42 are provided at the bottom of the frame 41, and the sliders 42 are made of polyurethane. A front scraper 43 is provided at one end of the frame 41 close to the cleaning drive device 3, and a scraper plate 44 is installed on the front scraper plate 43, and the scraper plate 44 is made of one of polyurethane, nylon, and engineering plastics; a cotter pin 410 is provided on one side of the front scraper plate 43 close to the bottom, and a pin shaft 49 is provided in the cotter pin 410, and the front scraper plate 43 is rotatably connected to the frame 41 through the provided pin shaft 49; a rotating pressure block 411 is connected to the top of the front scraper plate 43, and a rope hole is provided on the rotating pressure block 411; the frame 41 close to the bottom A connecting rod 45 is provided at the bottom position, and the connecting rod 45 is provided with a rotating shaft 413. The connecting rod 45 is rotatably connected to the frame 41 through the rotating shaft 413. The rotating pressure block 411 abuts against the connecting rod 45 during rotation. The end of the frame 41 away from the front scraper 43 is rotatably connected to the rear scraper 412. The connecting rod 45 can abut against the rear scraper 412 during rotation, and the rear scraper 412 is lifted upward; a tension spring 47 is connected to the side of the rotating pressure block 411 away from the scraper plate 44, and the other end of the tension spring 47 is connected to a bracket 46 arranged on the frame 41; the two free ends of the wire rope 322 are connected to the rope hole of the rotating pressure block 411.

[0050] An observation door 10 is provided on the side wall 14, through which the conveyor belt 19 can be inspected and maintained; a negative pressure pipe 15 is provided between the upper cover 12 and the conveyor belt 19, and a negative pressure air hole 16 is provided on the negative pressure pipe 15, and the outer end of the negative pressure pipe 15 is connected to a dust collecting bag and a dust collecting device for dust collection; before using this technical solution, the variable frequency motor of the dust collecting device is a 280KW variable frequency motor, the central control Hz frequency is 48, and the variable frequency motor current is 420A; after using this technical solution, the central control Hz frequency of the variable frequency motor 36 is 44, and the electrode current is 360A, which can save 30KW per hour. Calculated based on 10 hours of production per day, 300KW can be saved. Calculated at 0.8 yuan per kilowatt-hour, 240 yuan can be saved per day, and 72,000 yuan in electricity bills can be saved each year based on 300 days of production per year.

[0051] The redirecting roller 18 is provided with a tensioning assembly, which includes a tensioning frame, which is arranged on the outside of the side wall 14, and is provided with a screw, on which a spring is arranged, and the screw passes through the tensioning frame and is provided with a nut 321, and the other end of the screw is connected to the redirecting roller 18. The conveyor belt 19 can be set as a double-layer structure or a multi-layer structure; the side wall 14 and the upper cover 12 and the bottom plate 13 are welded or connected with bolts 319 to form an effective seal; the width of the bottom plate 13 is greater than the width between the two side walls 14, and a railing is arranged on the bottom plate 13, and the bottom plate 13 outside the side wall 14 can be used for people to pass.

[0052] When the present technical scheme is used to transport sand and gravel materials, the materials fall from the guide trough 9 onto the conveyor belt 19, and the material is transported in the direction from the tail frame 2 to the head frame 1. The cleaning drive device 3 is arranged at one end of the tail frame 2; the cleaning mechanism 4 is a one-way cleaning mechanism, and the cleaning direction is from the tail frame to the head frame. It should be understood that the present system is not suitable for two-way cleaning because of the fully sealed structure, and the tail frame 2 is close to the feed end, where there is a lot of poplar ash, and one end of the head frame 1 is the downstream direction of the conveying material. When the conveying material When it reaches one end of the head frame 1, the closed environment of the conveyor belt 19 is affected by the negative pressure dust removal equipment, and a large amount of dust above the conveyor belt is discharged by the negative pressure; the sand and gravel materials scattered at the bottom of the conveyor belt are directly sent out from the bottom of the head frame; if the cleaning mechanism scrapes the material from the head frame to the tail frame, the material at the bottom of the conveyor belt will cause dust again, which is not conducive to dust removal, and increases the workload of the dust removal equipment and increases energy consumption; the unidirectional cleaning of the cleaning mechanism 4 can avoid the above situation, and the cleaning direction is from the tail frame 2 to the head frame 1. During the cleaning process of the cleaning mechanism 4, the wire rope 322 is set to rotate in an up and down cycle, and the two free ends of the wire rope 322 located at the bottom are connected to the rope holes of the rotating pressure block 411, and the wire rope 322 is wound around a special tensioning wheel group 38. One wire rope 322 is wound around multiple tensioning wheel groups 38. During the rotation of the wire rope 322, it can be automatically tensioned to avoid the wire rope 322 from loosening during a long cleaning process.

[0053] The cleaning process of the cleaning mechanism 4 is as follows: when the cleaning mechanism 4 moves from the tail frame 2 to the head frame 1, the steel wire rope 322 pulls the rotating pressure block 411, the rotating pressure block 411 rotates, the tension spring 47 is stretched by the tension, the front scraper 43 and the scraper plate 44 arranged on the rotating pressure block 411 change from an inclined state to a vertical state, the scraper plate 44 can scrape the scattered sand and dust on the bottom plate 13, and at the same time, the pressure of the rotating pressure block 411 on the connecting rod 45 is released, the connecting rod 45 is eccentrically rotated, and the connecting rod 4 The mass of the end close to the rear scraper 412 is greater than the mass of the end close to the front scraper 43. After the pressure of the rotating pressure block 411 on the connecting rod 45 is released, the end of the connecting rod 45 close to the rear scraper 412 is affected by gravity and the height is lowered, releasing the contact with the rear scraper 412. The rear scraper 412 rotates downward under the action of gravity, and the bottom of the rear scraper 412 contacts the bottom plate 13, performing a secondary scraping on the bottom plate 13, and the cleaning effect is better. When the cleaning mechanism runs to the bottom of the head frame, the scraped sand and gravel materials are taken out from the bottom of the head frame; the sand and gravel materials are removed from the bottom of the head frame. After the stone material is taken out, the motor 36 rotates in the reverse direction, the steel wire rope 322 rotates in the reverse direction, the rotating pressing block 411 is subjected to the rebound force of the lifting spring and the pulling direction of the steel wire rope 322, the rotating pressing block 411 rotates in the reverse direction, the front scraper 43 and the scraper plate 44 change from a vertical state to an inclined state, and separate from the bottom plate 13; at the same time, the rotating pressing block 411 abuts against the connecting rod 45 to form pressure on the connecting rod 45, the connecting rod 45 rotates, and the end of the connecting rod 45 close to the rear scraper 412 rises and abuts against the rear scraper 412, 2 is lifted, so that the rear scraper 412 is separated from the bottom plate 13, so that the front scraper 43 and the rear scraper 412 are separated from the bottom plate 13, and the cleaning mechanism 4 starts to move in the opposite direction; a polyurethane slider 42 is arranged at the bottom of the frame 41 to replace the rotating wheel, which can effectively prevent dust from forming damping on the rotating wheel and causing the rotating wheel to be unable to rotate. At the same time, polyurethane has good wear resistance and sliding properties; a proximity switch is arranged on the cleaning mechanism 4, and the proximity switch is connected to the control system and the motor 36 of the cleaning drive device 3, so as to control the moving distance of the cleaning mechanism 4.

[0054] Embodiment 2:

[0055] refer to Figure 10-13 On the basis of the first embodiment, at least one material guide trough 9 is connected to the upper cover 12, and a material guide mechanism is provided on the inner wall of the side wall 14 below the material guide trough 9, and the material guide mechanism guides the conveyed material evenly to the conveyor belt 19. The material guide mechanism includes at least one guide plate and at least one fan plate, and elastic members are provided between the multiple guide plates. The elastic members are vibrated by the pressure of the materials, and the vibration of the elastic members drives the fan plates to form airflow movement, and the moving airflow blows the particulate materials and dust splashed on the conveyor belt 19 to the conveyor belt 19.

[0056] The material guide mechanism also includes two symmetrically arranged fixed plates 21, which are connected to the side wall 14. The fixed plates 21 are rotatably connected to the first material guide plate 22, the lower side of the first material guide plate 22 is connected to the first elastic member 23, the other end of the first elastic member 23 is connected to the second material guide plate 24, one end of the second material guide plate 24 is rotatably connected to the side wall 14, and the width of the second material guide plate 24 is greater than the width of the first material guide plate 22; the second material guide plate 24 is provided with a second elastic member 25 at one end close to the conveyor belt 19, the other end of the second elastic member 25 is connected to a fan plate 26, and one end of the fan plate 26 is rotatably connected to the second material guide plate 24. The lower side of the second material guide plate 24 is provided with an arc tube 27, the arc tube 27 is provided with a third elastic member 28, the third elastic member 28 is connected to an arc rod 29, and the arc rod 29 is slidably connected in the arc tube 27; the other end of the arc rod 29 is rotatably connected to a horizontal rod 210, and the horizontal rod 210 is provided with a sealing box 211 for sealing and sliding. The sealing box 211 is arranged on the side wall 14, and a sealing movable plate 212 is arranged inside the sealing box 211, and the sealing movable plate 212 is slidably and sealedly connected inside the sealing box 211, and the sealing box 211 is provided with an air outlet 213, and the air outlet 213 is connected to an air outlet pipe 214, and the air outlet pipe 214 is provided with a fixing rod 220, and the fixing rod 220 is connected to the side wall 14; an air outlet door 216 is arranged inside the air outlet pipe 214, and the air outlet door 216 is rotatably connected to the outside of the sealing box 211 The air outlet door 216 can cover the air outlet hole 213; the other end of the air outlet pipe 214 is connected to the nozzle 215, and the nozzle 215 is arranged at the edge of the conveyor belt 19; the sealing box 211 is also provided with an air inlet pipe 217, and the air inlet pipe 217 is provided with an air inlet door 218, and the air inlet door 218 is rotatably arranged on the inner wall of the sealing box 211, and a connecting hole 219 is provided on the side of the sealing box 211 away from the arc rod 29, and the connecting hole 219 is connected to the outside atmosphere.

[0057] Specifically, when the sand and gravel aggregates are guided to the conveyor belt 19 through the guide trough 9, they generally fall directly onto the conveyor belt 19 from the guide trough 9. However, the sand and gravel aggregates are prone to pile up when they fall onto the conveyor belt 19. The pile up will cause the sand and gravel aggregates to overflow from both sides of the conveyor belt 19, affecting the normal conveying process. In addition, the overflowed sand and gravel aggregates are scattered on the floor, increasing the difficulty of collection. At the same time, the scattered aggregates will cause more dust and ash. Moreover, when the sand and gravel aggregates fall from the guide trough 9 onto the conveyor belt 19, a large amount of dust will be caused, which will not only increase the burden of dust removal and cause dust overflow, but also enter the support The roller is provided with a first guide plate 22 and a second guide plate 24 on the side wall 14 below the guide trough 9. After the sand and gravel aggregates fall on the first guide plate 22 and the second guide plate 24, the first elastic member 23 and the second elastic member 25 are provided. The first elastic member 23 and the second elastic member 25 are springs or elastic plates. The first guide plate 22 and the second guide plate 24 are subjected to the gravity of the sand and gravel aggregates or vibrate. The sand and gravel aggregates are subjected to an upward reaction force. The sand and gravel aggregates can be evenly scattered on the conveyor belt 19 through at least two vibrations, which can effectively prevent A large amount of sand and gravel aggregates are piled up on the conveyor belt 19 for better transmission; the second guide plate 24 drives the fan plate 26 below to reciprocate during vibration, which creates pressure on the dusty materials, blows the dust raised when the sand and gravel aggregates are scattered onto the conveyor belt 19, and cooperates with the first guide plate 22 and the second guide plate 24 to effectively prevent the dust from overflowing the conveyor belt 19, making it easier to transport sand and gravel aggregates and dusty materials on the conveyor belt 19; in order to prevent the first guide plate 22, the second guide plate 24 and the fan plate 26 from colliding with the conveyor belt 19 during vibration, the first guide plate The rotation angle θ1 of the first guide plate 22 and the second guide plate 24 satisfies 20°-45°, the rotation angle θ2 of the fan plate 26 satisfies, θ2=3 / 5θ1, the width of the first guide plate is d1, the width of the second guide plate 24 is d2, and they satisfy 1.8d1<d2>1.2d1, the width of the fan plate 26 is d3, d3=1 / 2d2; through the above settings, it can not only meet the material guiding function, prevent the first guide plate 22 and the second guide plate 24, the fan plate 26 from interfering with the conveyor belt 19 during vibration, but also form a good airflow movement, suppress dust and prevent dust from overflowing.Specifically, when the second guide plate 24 vibrates, the third elastic member 28 in the arc tube 27 is compressed. The third elastic member 28 is a spring. The third elastic member 28 forms pressure on the arc rod 29. The arc rod 29 moves to push the horizontal rod 210 to move. The horizontal rod 210 drives the sealing movable plate 212 to reciprocate in the sealing box 211 during the movement. When the sealing movable plate 212 moves away from the arc rod 29, a negative pressure is formed in the sealing box 211. The air inlet valve 218 is opened by the negative pressure, and the external gas enters the sealing box 211 through the air inlet pipe 217. The air outlet valve 216 is closed by the negative pressure to prevent dust from entering the sealing box 211 from the nozzle 215. When the sealing movable plate 212 moves close to the arc rod 29, the air inlet valve 218 is closed by air pressure to prevent the gas from being discharged from the air inlet pipe 217, and the air outlet valve 216 is opened by air pressure, and the gas in the sealing box 211 is quickly ejected through the air outlet pipe 214 and the nozzle 215 by pressure, blowing pressure wind to the dust scattered on the conveyor belt 19, effectively preventing the sand and gravel aggregate dust falling on the conveyor belt 19 from overflowing, and better avoiding dust; the connecting hole 219 set on the sealing box 211 is connected to the outside world to balance the air pressure, and prevent the air pressure on the side of the sealing movable plate 212 away from the horizontal rod 210 from being too high, which affects the normal movement of the sealing movable plate 212. Through the above-mentioned settings, not only can dust be effectively prevented, the power of the system dust removal equipment is reduced, the energy efficiency is better, and the repair and maintenance costs of the equipment are reduced, but also the transportation efficiency of sand and gravel aggregates is further improved.

[0058] Other technical solutions not described in detail in the present invention are all existing technologies in the field and will not be described in detail here.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fully sealed self-cleaning conveyor, characterized in that: It comprises a head frame (1) and a tail frame (2); A conveyor belt (19) is provided between the head frame (1) and the tail frame (2), side walls (14) are provided on both sides of the conveyor belt (19), an upper cover (12) is provided above the conveyor belt (19), the upper cover (12) is sealedly connected to the side wall (14), a bottom plate (13) is provided at the bottom of the side wall (14), and the bottom plate (13) is sealedly connected to the side wall (14); A cleaning mechanism (4) is provided at the bottom of the conveyor belt (19), and the cleaning mechanism (4) reciprocates to automatically clean the materials scattered on the bottom plate (13), and the cleaning mechanism (4) is provided with a cleaning drive device (3); The driving mechanism drives the cleaning mechanism (4) to reciprocate on the bottom plate (13), the cleaning mechanism (4) comprising a scraper, when the cleaning mechanism (4) moves towards the head frame (1), the scraper is lowered to scrape the material, and when the cleaning mechanism (4) moves towards the tail frame (2), the scraper is retracted and does not scrape the material; The cleaning drive device (3) is arranged at one end of the tail frame (2), and the drive device comprises a driving rope wheel (33), the driving rope wheel (33) is connected to a reducer (35) and a motor (36), and a steel wire rope (322) is wound around the driving rope wheel (33); a redirecting rope wheel is arranged at one end of the head frame (1), and the steel wire rope (322) rotates on the driving rope wheel (33) and the redirecting rope wheel. During the rotation process, the steel wire rope (322) is distributed in two upper and lower directions. The steel wire rope (322) close to the bottom plate (13) has two free ends, and the two free ends of the steel wire rope (322) are separately connected to the cleaning mechanism (4), so that the steel wire rope (322) drives the cleaning mechanism (4) to move in both the forward and reverse directions; The cleaning mechanism (4) comprises a frame (41), a plurality of sliders (42) are provided at the bottom of the frame (41), a front scraper (43) is provided at one end of the frame (41) close to the cleaning drive device (3), a scraper plate (44) is mounted on the front scraper (43), a cotter pin (410) is provided at one side of the front scraper (43) close to the bottom, a pin shaft (49) is provided in the cotter pin (410), and the front scraper (43) is rotatably connected to the frame (41) via the provided pin shaft (49); a rotating pressure block (411) is connected to the top of the front scraper (43), and a rope hole is provided on the rotating pressure block (411); a connecting rod (45) is provided at a position close to the bottom of the frame (41), and the connecting rod (45) is provided A rotating shaft (413) is provided, and a connecting rod (45) is rotatably connected to a vehicle frame (41) via the rotating shaft (413). During the rotation process, the rotating pressure block (411) abuts against the connecting rod (45). One end of the vehicle frame (41) away from the front scraper (43) is rotatably connected to a rear scraper (412). During the rotation process, the connecting rod (45) can abut against the rear scraper (412), and the rear scraper (412) is lifted upward. A tension spring (47) is connected to one side of the rotating pressure block (411) away from the scraper plate (44), and the other end of the tension spring (47) is connected to an "L"-shaped connecting plate provided on the vehicle frame (41). Both free ends of the steel wire rope (322) are connected to the rope hole of the rotating pressure block (411).

2. A fully sealed self-cleaning conveyor according to claim 1, characterized in that: The head frame (1) and the tail frame (2) are sealedly connected to the bottom plate (13), the upper cover (12), and the side wall (14); a driving roller (17) is rotatably provided inside the head frame (1), the driving roller (17) is driven by a driving motor, and the driving roller (17) is rotatably connected to the head frame (1); a redirecting roller (18) is provided inside the tail frame (2), and the redirecting roller (18) is rotatably connected to the tail frame (2); a conveyor belt (19) is arranged on the driving roller (17). and a rotating roller, the conveyor belt (19) circulates and rotates between the driving roller (17) and the rotating roller; the inner wall of the side wall (14) is connected to an upper roller bracket (5), a lower roller bracket (6) is provided below the upper roller bracket (5), a plurality of upper centering rollers (7) are rotatably provided on the upper roller bracket (5), a lower centering roller (8) is rotatably provided on the lower roller bracket (6), and the conveyor belt (19) is in frictional contact with the upper centering rollers (7) and the lower centering rollers (8).

3. A fully sealed self-cleaning conveyor according to claim 1, characterized in that: The driving device comprises a driving frame (31), the driving frame (31) being mounted on the tail frame (2), a protective cover (311) being provided on the top of the driving frame (31), a rope pulley shaft (32) being provided on the driving frame (31), the rope pulley shaft (32) being rotatably connected to the driving frame (31) via a provided bearing (318), the bearing (318) being mounted on the driving frame (31) via a provided bolt (319) in cooperation with a bearing (318) seat, a C-shaped key (316) being provided on the rope pulley shaft (32), the rope pulley shaft (32) being keyed to the driving rope pulley (33) via the C-shaped key (316); one end of the rope pulley shaft (32) being connected to a coupling shaft (317), the coupling shaft (317) being connected to a reducer; a tensioning wheel group (38) being provided on a side of the driving rope pulley (33) away from the tail frame (2), The tensioning wheel group (38) comprises an upper tensioning wheel and a lower tensioning wheel, the upper tensioning wheel and the lower tensioning wheel are located in the same vertical plane and arranged at an angle, the tensioning wheel group (38) is provided with a tensioning wheel slide (37), the tensioning wheel slide (37) is slidably connected to the driving frame (31), the driving frame (31) is provided with a slide groove, the tensioning wheel slide (37) is arranged in the slide groove, the tensioning wheel slide (37) is provided with a plurality of compression springs (320), a guide rod is arranged in the compression spring (320), the guide rod passes through the tensioning wheel slide (37), the other end of the guide rod is pressed on the tensioning wheel slide (37) by a nut (321), and the other end of the guide rod is connected to the tensioning wheel group (38); the steel wire rope (322) is wound between the driving rope wheel (33) and the upper tensioning wheel and the lower tensioning wheel.

4. A fully sealed self-cleaning conveyor according to claim 3, characterized in that: The other end of the tension wheel slide (37) is connected to a tension frame (39), a screw rod (313) is provided inside the tension frame (39), one end of the screw rod (313) is rotatably connected to the driving frame (31), and the other end is spirally rotatably connected to the tension frame (39), a support rod sleeve (310) is provided on the screw rod (313), and a plurality of compression springs (323) are provided between the support rod sleeve (310) and the tension frame (39).

5. The fully sealed self-cleaning conveyor according to claim 1, characterized in that: The sliding block (42) is made of polyurethane.

6. A fully sealed self-cleaning conveyor according to claim 1, characterized in that: At least one material guide trough (9) is connected above the upper cover (12), and a material guide mechanism is provided on the inner wall of the side wall (14) below the material guide trough (9), and the material guide mechanism guides the conveyed material evenly onto the conveyor belt (19).

7. A fully sealed self-cleaning conveyor according to claim 6, characterized in that: The material guiding mechanism comprises at least one guide plate and at least one fan plate (26), and elastic members are arranged between the plurality of guide plates. The elastic members are vibrated by the pressure of the material, and the vibration of the elastic members drives the fan plates to form air flow movement. The moving air flow blows the particulate materials and dust splashed onto the conveyor belt (19) and transports them onto the conveyor belt (19).

8. A fully sealed self-cleaning conveyor according to claim 7, characterized in that: The material guide mechanism further comprises two symmetrically arranged fixed plates (21), the fixed plates (21) being connected to the side wall (14), the fixed plates (21) being rotatably connected to a first material guide plate (22), the lower side of the first material guide plate (22) being connected to a first elastic member (23), the other end of the first elastic member (23) being connected to a second material guide plate (24), one end of the second material guide plate (24) being rotatably connected to the side wall (14), the width of the second material guide plate (24) being greater than the width of the first material guide plate (22); a second elastic member (25) being provided at one end of the second material guide plate (24) close to the conveyor belt (19), the other end of the second elastic member (25) being connected to a fanning plate (26), one end of the fanning plate (26) being rotatably connected to the second material guide plate (24).

9. A fully sealed self-cleaning conveyor according to claim 8, characterized in that: The lower side of the second material guide plate (24) is provided with an arc-shaped cylinder (27), and a third elastic member (28) is provided in the arc-shaped cylinder (27). The third elastic member (28) is connected to an arc-shaped rod (29), and the arc-shaped rod (29) is slidably connected in the arc-shaped cylinder (27); the other end of the arc-shaped rod (29) is rotatably connected to a horizontal rod (210), and the horizontal rod (210) is provided with a sealing box (211) in a sealing and sliding manner; the sealing box (211) is arranged on the side wall (14), and a sealing movable plate (212) is provided inside the sealing box (211), and the sealing movable plate (212) is slidably and sealably connected in the sealing box (211); the sealing box (211) is provided with an air outlet (213), and the air outlet (213) is connected to an air outlet pipe (214), and the air outlet pipe (214) is provided with a fixed The sealing box (211) is provided with a rod (220), the fixed rod (220) being connected to the side wall (14); an air outlet door (216) is provided in the air outlet pipe (214), the air outlet door (216) is rotatably connected to the outer wall of the sealing box (211), and the air outlet door (216) can cover the air outlet hole (213); the other end of the air outlet pipe (214) is connected to a nozzle (215), and the nozzle head (215) is arranged at the edge of the conveyor belt (19); the sealing box (211) is also provided with an air inlet pipe (217), the air inlet pipe (217) is provided with an air inlet door (218), and the air inlet door (218) is rotatably arranged on the inner wall of the sealing box (211); a communication hole (219) is provided on the side of the sealing box (211) away from the arc rod (29), and the communication hole (219) is connected to the outside atmosphere.

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