Movable scraper conveyor

Abstract

The invention belongs to the technical field of scraper conveyors, and particularly relates to a movable scraper conveyor which comprises two side plates and a bottom plate fixedly connected between the two side plates, a discharging opening is formed in the right side of the bottom plate, and the side walls of the two side plates are rotationally connected with the same driving shaft. The rod wall of the driving shaft is fixedly sleeved with two driving teeth, and the rear side wall of the side plate located on the rear side is fixedly connected with a driving motor. In the working process of the movable scraper conveyor, the scrapers can be detected at any time, when it is detected that a certain scraper deforms, an operator can be reminded in time to find the corresponding scraper for replacement, the conveying performance of the scraper conveyor is guaranteed, meanwhile, the operator can be assisted in rapidly finding the deformed scrapers, and the working efficiency of the scraper conveyor is improved. The working convenience of operators is improved, the weight of the scraper is reduced, and the energy consumption of the conveyor is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of scraper conveyors, and in particular relates to a movable scraper conveyor. Background Art

[0002] A movable scraper conveyor is a continuous conveying equipment used to convey bulk materials. It is mainly composed of a scraper chain, a sprocket, a machine trough, a driving device and a tensioning device. The scraper is installed on the chain. Driven by the sprocket, the scraper circulates in the machine trough, thereby pushing the material along the conveying direction. For example, the movable scraper conveyor proposed in patent announcement number CN104670804A.

[0003] When the existing movable scraper conveyor is in use, it is necessary to use the scraper to push the material. After pushing the material for a long time, the scraper will be deformed due to factors such as excessive impact force, material squeezing or friction with the conveyor trough wall. After the scraper is deformed, the gap between it and the bottom and side wall of the machine trough will change. Under normal circumstances, the scraper can effectively push the material forward, but the deformed scraper may not be able to fit tightly with the machine trough. For example, the middle part of the scraper is deformed by bulging upward. When pushing the material, the material is easy to leak from the sides and bottom of the scraper and cannot be effectively scraped and transported, resulting in a decrease in conveying efficiency. Since there are a large number of scrapers inside the scraper conveyor, when a scraper is deformed, it is difficult for the operator to find and replace the deformed scraper in time, which affects the convenience of the operator to replace the scraper.

[0004] Therefore, a movable scraper conveyor is proposed to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a movable scraper conveyor in view of the above problems.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a movable scraper conveyor, comprising two side plates and a bottom plate fixedly connected between the two side plates, a discharge port is provided on the right side of the bottom plate, the side walls of the two side plates are rotatably connected with a same driving shaft, the rod wall fixing sleeve of the driving shaft is provided with two driving teeth, the rear side wall of the side plate located at the rear side is fixedly connected with a driving motor, the output end of the driving motor is connected to the rear end of the driving shaft, the side walls of the two side plates are provided with a same driven shaft, the rod wall fixing sleeve of the driven shaft is provided with two driven teeth, the driving teeth and the driven teeth outer sleeve on the same side are provided with a same chain, the rear side wall of the side plate located at the rear side is fixedly connected with a PLC controller, and also includes: A plurality of scraper assemblies are evenly distributed between the two chains and are used to push the material on the upper side of the bottom plate; Two adjustment components are respectively fixedly connected to the side walls of the two side plates on the opposite sides and connected to the driven shaft to adjust the tightness of the chain; Two cleaning assemblies, respectively arranged on the side walls of the two side plates, for cleaning impurities on the outside of the driving teeth; The analysis component is arranged above the two side plates and is used to detect the tooth jumping condition of the chain.

[0007] Preferably, the scraper assembly includes a scraper frame and a connecting frame, the connecting frame and the front and rear side chains are connected by a bolt assembly, the scraper frame and the connecting frame are connected, a plurality of triangular support frames are fixedly connected inside the scraper frame, an air inlet hole is opened on the side wall of the scraper frame close to the connecting frame, a plug ring is fixedly connected to the inner wall of the connecting frame, a plug rod is inserted in the plug ring, an end of the plug rod close to the air inlet hole is fixedly connected to a piston plate, the piston plate and the plug ring are fixedly connected with the same spring, an end of the plug rod away from the piston plate is fixedly connected to a placement seat, a conductive block is fixedly connected to the side wall of the placement seat, the conductive block is electrically connected to an external power supply, a conductive plate is inlaid on the inner wall of the connecting frame, the conductive plate is electrically connected to a PLC controller, an indicator light is fixedly connected to the outer wall of the connecting frame, and a roughness detection assembly is connected to the side wall of the scraper frame.

[0008] Preferably, the roughness detection component includes a detection box fixedly connected to the side wall of the scraper frame, the inner wall of the detection box is connected to a moving block through a spring, the lower side wall of the moving block is fixedly connected to a vertical rod, the lower side wall of the detection box is provided with a sliding opening that matches the vertical rod, the lower end of the vertical rod extends out of the sliding opening and is fixedly connected to a friction block, the upper inner wall of the detection box is fixedly connected to a detection switch, and the detection switch is electrically connected to a PLC controller.

[0009] Preferably, the adjustment assembly includes a hydraulic cylinder fixedly connected to the side wall of the side plate, the moving end of the hydraulic cylinder is fixedly connected to a moving box, the inner wall of the moving box is fixedly connected to a support plate via a strong spring, the side wall of the support plate is connected to an adjustment rod via a pressure sensor, the end of the adjustment rod away from the support plate extends out of the moving box and is fixedly connected to a connecting ring, and the driven shaft is rotatably connected in the connecting ring.

[0010] Preferably, the cleaning assembly includes a connecting cover fixedly inserted in the side wall of the side panel, the side wall of the connecting cover is fixedly connected with a transverse electric push rod, the moving end of the transverse electric push rod passes through the connecting cover and is fixedly connected with a cleaning frame, the inner wall of the cleaning frame is rotatably connected to two rotating shafts, the upper side wall of the cleaning frame is fixedly connected with a cleaning motor, the output end of the cleaning motor and the upper end of the inner rotating shaft are fixedly connected, the two rotating shafts are outerly provided with the same cleaning belt, and the outer wall of the cleaning belt is fixedly connected with a plurality of metal bristles.

[0011] Preferably, the analysis component includes an analysis frame fixedly connected to the outer walls of two side panels, the upper inner wall of the analysis frame is fixedly connected to a frequency counter through a bracket, the pressing part of the frequency counter is connected to a first arc block, the frequency counter and a PLC controller are electrically connected, the upper side wall of the analysis frame is fixedly connected to a small electric push rod, the moving end of the small electric push rod extends out of the analysis frame and is fixedly connected to a mounting ring, the inner wall of the mounting ring is connected to an air intake assembly, the upper side wall of the analysis frame is fixedly connected to a horizontal box, the horizontal box and the air intake assembly are fixedly connected by the same hose, the right inner wall of the horizontal box is connected to a piston block through a spring, the upper inner wall of the horizontal box is fixedly connected to a trigger switch, the trigger switch and the PLC controller are electrically connected, and the upper side wall of the horizontal box is connected to a capillary tube.

[0012] Preferably, the air intake assembly includes an air intake cylinder, a round rod is inserted into the lower side wall of the air intake cylinder, the lower end of the round rod extends out of the air intake cylinder and is connected to a second arc block, the upper end of the round rod is located in the air intake cylinder and is fixedly connected to a top plate, a placement plate is fixedly connected to the inner wall of the air intake cylinder, the same telescopic airbag is fixedly connected between the placement plate and the top plate, two springs are fixedly connected between the placement plate and the top plate, the upper end of the telescopic airbag is connected to a hose, a first one-way valve is provided in the hose, the side wall of the hose is connected to an air intake pipe, a second one-way valve is provided in the air intake pipe, and the right end of the air intake pipe extends out of the air intake cylinder.

[0013] Preferably, the left side wall of the horizontal box is connected to a pneumatic pipe, and a pressure valve is provided in the pneumatic pipe.

[0014] Compared with the existing technology, the advantages of a movable scraper conveyor are: 1. Through the side plates, bottom plates, discharge ports, drive shafts, drive teeth, drive motors, driven shafts, driven teeth, chains, PLC controllers, and scraper assemblies, the scraper can be inspected at any time during the operation of the movable scraper conveyor. When a deformation of a scraper is detected, the operator can be promptly reminded to find the corresponding scraper for replacement. While ensuring the conveying performance of the scraper conveyor, the operator can also be assisted to quickly find the deformed scraper, which improves the convenience of the operator's work, reduces the weight of the scraper itself, and reduces the energy consumption of the conveyor.

[0015] 2. Through the analysis component, when the chain inside the conveyor jumps teeth, the gear surface near the discharge port can be automatically cleaned to avoid the chain jumping teeth due to impurities in the meshing of the gear and chain. When it is detected that there are no impurities in the gear meshing, the operator can be reminded in time to replace the severely worn gears.

[0016] 3. Through the setting adjustment component, when the chain inside the conveyor becomes loose due to long-term use and wear, the chain can be automatically adjusted to keep the chain in a tensioned state, thereby ensuring the conveying efficiency of the conveyor.

[0017] 4. By setting up the roughness detection component, the wear condition of the bottom of the conveyor can be automatically detected during the operation of the conveyor. When the detection finds abnormal wear on the bottom of the conveyor, the operator can be reminded in time to inspect the bottom of the conveyor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a movable scraper conveyor provided by the present invention; Figure 2 The present invention provides a movable scraper conveyor Figure 1 A cross-sectional view of Figure 3 It is a structural schematic diagram of an analysis component in a movable scraper conveyor provided by the present invention; Figure 4 It is a schematic diagram of the internal structure of a horizontal box in a movable scraper conveyor provided by the present invention; Figure 5 It is a structural schematic diagram of an air intake assembly in a movable scraper conveyor provided by the present invention; Figure 6 It is a structural schematic diagram of a scraper assembly in a movable scraper conveyor provided by the present invention; Figure 7 It is a structural schematic diagram of a roughness detection component in a movable scraper conveyor provided by the present invention; Figure 8 The present invention provides a movable scraper conveyor. Figure 1 A partial right view of Fig. 9 The present invention is a schematic structural diagram of a cleaning component in a movable scraper conveyor.

[0019] In the figure: 1 side plate, 2 bottom plate, 3 discharge port, 4 drive shaft, 5 drive gear, 6 drive motor, 7 driven shaft, 8 driven gear, 9 chain, 10 PLC controller, 11 scraper assembly, 111 scraper frame, 112 connecting frame, 12 triangular support frame, 13 plug ring, 14 plug rod, 15 piston plate, 16 placement seat, 17 conductive block, 18 conductive plate, 19 indicator light, 20 roughness detection assembly, 201 detection box, 202 moving block, 21 vertical rod, 22 friction block, 23 detection switch, 24 adjustment assembly, 241 hydraulic cylinder, 242 moving box, 25 support plate, 26 adjustment rod, 27 connecting ring, 28 Cleaning assembly, 281 connecting cover, 282 horizontal electric push rod, 29 cleaning frame, 30 rotating shaft, 31 cleaning motor, 32 cleaning belt, 33 metal bristles, 34 analysis assembly, 341 analysis frame, 342 frequency counter, 35 first arc block, 36 small electric push rod, 37 mounting ring, 38 horizontal box, 39 hose, 40 piston block, 41 trigger switch, 42 capillary, 43 air intake assembly, 431 air intake cylinder, 432 round rod, 44 second arc block, 45 top plate, 46 placement plate, 47 telescopic airbag, 48 first one-way valve, 49 air intake pipe, 50 second one-way valve, 51 air pressure pipe, 52 pressure valve. Implementation

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] like Figure 1-Figure 9 As shown, a movable scraper conveyor comprises two side plates 1 and a bottom plate 2 fixedly connected between the two side plates 1, a discharge port 3 is arranged on the right side of the bottom plate 2, the side walls of the two side plates 1 are rotatably connected with a same driving shaft 4, the rod wall fixing sleeve of the driving shaft 4 is provided with two driving teeth 5, the rear side wall of the rear side plate 1 is fixedly connected with a driving motor 6, the output end of the driving motor 6 is connected to the rear end of the driving shaft 4, the side walls of the two side plates 1 are provided with a same driven shaft 7, the rod wall fixing sleeve of the driven shaft 7 is provided with two driven teeth 8, the driving teeth 5 and the driven teeth 8 on the same side are provided with a same chain 9, the rear side wall of the rear side plate 1 is fixedly connected with a PLC controller 10, and further comprises: A plurality of scraper assemblies 11 are evenly distributed between the two chains 9 and are used to push the material on the upper side of the bottom plate 2. The scraper assembly 11 includes a scraper frame 111 and a connecting frame 112. The connecting frame 112 is connected to the chains 9 on the front and rear sides by a bolt assembly. The scraper frame 111 is connected to the connecting frame 112. A plurality of triangular support frames 12 are fixedly connected to the interior of the scraper frame 111. An air inlet is provided on the side wall of the scraper frame 111 close to the connecting frame 112. An insert ring 13 is fixedly connected to the inner wall of the connecting frame 112. An insert rod 14 is inserted in the insert ring 13. A piston plate 15 is fixedly connected to one end of the insert rod 14 close to the air inlet. The same spring is fixedly connected between the piston plate 15 and the insert ring 13. A placement seat 16 is fixedly connected to one end of the insert rod 14 away from the piston plate 15. The side wall of the seat 16 is fixedly connected with a conductive block 17, which is electrically connected to an external power supply. The inner wall of the connection frame 112 is inlaid with a conductive plate 18, which is electrically connected to the PLC controller 10. The outer wall of the connection frame 112 is fixedly connected with an indicator light 19. The side wall of the scraper frame 111 is connected with a roughness detection component 20. During the operation of the movable scraper conveyor, the scraper can be detected at any time. When a deformation of a scraper is detected, the operator can be reminded in time to find the corresponding scraper for replacement. While ensuring the conveying performance of the scraper conveyor, the operator can also be assisted to quickly find the deformed scraper, which improves the convenience of the operator's work, reduces the weight of the scraper itself, and reduces the energy consumption of the conveyor. Two adjustment components 24 are respectively fixedly connected to the side walls of the two side plates 1 on the opposite sides, and are connected to the driven shaft 7, and are used to adjust the tightness of the chain 9. The adjustment component 24 includes a hydraulic cylinder 241 fixedly connected to the side wall of the side plate 1, and the moving end of the hydraulic cylinder 241 is fixedly connected to a moving box 242. The inner wall of the moving box 242 is fixedly connected to a support plate 25 through a strong spring. The side wall of the support plate 25 is connected to an adjustment rod 26 through a pressure sensor. The end of the adjustment rod 26 away from the support plate 25 extends out of the moving box 242 and is fixedly connected to a connecting ring 27. The driven shaft 7 is rotatably connected in the connecting ring 27. When the chain 9 inside the conveyor is loose due to long-term use and wear, the chain 9 can be automatically adjusted to keep the chain 9 in a tensioned state, thereby ensuring the conveying efficiency of the conveyor; Two cleaning components 28 are respectively arranged on the side walls of the two side plates 1, and are used to clean the impurities on the outside of the driving gear 5. The cleaning component 28 includes a connecting cover 281 fixedly plugged into the side wall of the side plate 1, and the side wall of the connecting cover 281 is fixedly connected with a transverse electric push rod 282, and the moving end of the transverse electric push rod 282 passes through the connecting cover 281 and is fixedly connected with a cleaning frame 29, and the inner wall of the cleaning frame 29 is rotatably connected with two rotating shafts 30, and the upper side wall of the cleaning frame 29 is fixedly connected with a cleaning motor 31, and the output end of the cleaning motor 31 is fixedly connected to the upper end of the inner rotating shaft 30, and the two rotating shafts 30 are outerly provided with the same cleaning belt 32, and the outer wall of the cleaning belt 32 is fixedly connected with a plurality of metal bristles 33, which can automatically clean the gear surface near the discharge port to avoid the chain 9 from jumping teeth due to impurities in the meshing position of the gear and the chain 9; The analysis component 34 is arranged above the two side plates 1 and is used to detect the tooth jumping of the chain 9. The analysis component 34 includes an analysis frame 341 fixedly connected to the outer walls of the two side plates 1. The upper inner wall of the analysis frame 341 is fixedly connected to a frequency counter 342 through a bracket. The pressing part of the frequency counter 342 is connected to a first arc block 35. The frequency counter 342 is electrically connected to the PLC controller 10. The upper side wall of the analysis frame 341 is fixedly connected to a small electric push rod 36. The moving end of the small electric push rod 36 extends out of the analysis frame 341 and is fixedly connected to a mounting ring 37. The mounting ring 37 The inner wall is connected to an air intake assembly 43, the upper side wall of the analysis frame 341 is fixedly connected to a horizontal box 38, the horizontal box 38 and the air intake assembly 43 are fixedly connected by a same hose 39, the right inner wall of the horizontal box 38 is connected to a piston block 40 through a spring, the upper inner wall of the horizontal box 38 is fixedly connected to a trigger switch 41, the trigger switch 41 is electrically connected to the PLC controller 10, and the upper side wall of the horizontal box 38 is connected to a capillary 42. When the chain 9 inside the conveyor jumps teeth, and when it is detected that there are no impurities in the gear meshing, the operator can be reminded in time to replace the severely worn gears.

[0022] The roughness detection component 20 includes a detection box 201 fixedly connected to the side wall of the scraper frame 111, the inner wall of the detection box 201 is connected to a moving block 202 through a spring, the lower side wall of the moving block 202 is fixedly connected to a vertical rod 21, the lower side wall of the detection box 201 is provided with a sliding opening that matches the vertical rod 21, the lower end of the vertical rod 21 extends out of the sliding opening and is fixedly connected to a friction block 22, and the upper inner wall of the detection box 201 is fixedly connected to a detection switch 23, the detection switch 23 and the PLC controller 10 are electrically connected, and can automatically detect the wear of the bottom of the conveyor during the operation of the conveyor. When the detection finds that the bottom of the conveyor is abnormally worn, the operator can be promptly reminded to inspect the bottom of the conveyor.

[0023] The air intake assembly 43 includes an air intake cylinder 431, a round rod 432 is inserted into the lower side wall of the air intake cylinder 431, the lower end of the round rod 432 extends out of the air intake cylinder 431 and is connected to the second arc block 44, the upper end of the round rod 432 is located in the air intake cylinder 431 and is fixedly connected to a top plate 45, a placement plate 46 is fixedly connected to the inner wall of the air intake cylinder 431, a same telescopic air bag 47 is fixedly connected between the placement plate 46 and the top plate 45, two springs are fixedly connected between the placement plate 46 and the top plate 45, the upper end of the telescopic air bag 47 is connected to the hose 39, a first one-way valve 48 is provided in the hose 39, the side wall of the hose 39 is connected to the air intake pipe 49, and a second one-way valve 50 is provided in the air intake pipe 49, the right end of the air intake pipe 49 extends out of the air intake cylinder 431, and can transport a certain amount of gas into the horizontal box 38.

[0024] The left side wall of the horizontal box 38 is connected to a pneumatic pipe 51 , and a pressure valve 52 is provided in the pneumatic pipe 51 to discharge the excess gas in the horizontal box 38 .

[0025] The operating principle of the present invention is now described as follows: when the movable scraper conveyor needs to be used, an electrical signal is transmitted to the PLC controller 10 through the control switch of the external device. After receiving the electrical signal, the PLC controller 10 controls the drive motor 6 to work, and the drive motor 6 drives the drive shaft 4 to rotate, and the drive shaft 4 drives the two drive teeth 5 on the surface to rotate, and the drive teeth 5 drive the two chains 9 and the two driven teeth 8 to rotate together, and the chain 9 drives the scraper assembly 11 to move, and the scraper assembly 11 is used to push the material falling into the conveyor, so that the material is transported to the target point through the discharge port 3; When the scraper frame 111 is deformed due to the extrusion, collision or friction of the material, the space inside the scraper frame 111 will be squeezed, so that the gas inside the scraper frame 111 is transported to the connecting frame 112 through the air inlet, so that the air pressure near the piston plate 15 increases. Under the push of the air pressure, the piston plate 15 will drive the placement seat 16 and the conductive block 17 to move away from the scraper frame 111 through the insertion rod 14. In the process of moving upward, the conductive block 17 will contact the conductive plate 18, and the conductive block 17 will be electrically connected to the external power supply. The conductive plate 18 and the PLC controller 1 0 electrical connection, when the conductive block 17 and the conductive plate 18 are in contact, an electrical signal will be transmitted to the PLC controller 10. After receiving the electrical signal, the PLC controller 10 will control the external prompt mechanism to work (the external prompt mechanism is a buzzer, and the buzzer reminds the surrounding operators with a beeping tone). At the same time, the PLC controller 10 will also control the indicator light 19 corresponding to the conductive plate 18 to work (the surface of the indicator light 19 is provided with a protective cover to protect the indicator light 19), so that the operator can quickly find the deformed scraper frame 111 and replace it later; When the scraper frame 111 pushes the material on the surface of the bottom plate 2, the friction block 22 will contact the upper surface of the bottom plate 2. The friction between the friction block 22 and the upper surface of the bottom plate 2 will cause the friction block 22, the vertical rod 21 and the moving block 202 to overcome the elastic force of the spring and move. When the upper surface of the bottom plate 2 is worn due to the scraping of the material, the roughness of the upper surface of the bottom plate 2 will increase, thereby increasing the friction between the friction block 22 and the bottom plate 2. The increased friction will cause the moving block 202 to continue to move and squeeze the detection switch 23. The detection switch 23 will send an electrical signal to the PLC controller 10, and the PLC controller 10 will control the external prompt mechanism to work (the external prompt mechanism is a buzzer, which reminds the surrounding operators with a clicking tone), so that the operator can replace the worn bottom plate 2 conveniently, and avoid the phenomenon that the wear of the bottom plate 2 continues to increase, which will cause the material to leak back from the gap between the scraper frame 111 and the bottom plate 2, thereby affecting the conveying efficiency. Reference Figure 2When the chain 9 drives the scraper frame 111 to move upward, the upper scraper frame 111 will squeeze the first arc block 35 during the movement, so that the first arc block 35 moves upward, and the first arc block 35 will squeeze the frequency counter 342 upward. The moving speed of the scraper frame 111 can be detected by the frequency counter 342. When the drive tooth 5 and the driven tooth 8 are worn, or the tooth groove of the drive tooth 5 is embedded with debris (the drive tooth 5 is set at a position close to the discharge port 3. When the scraper frame 111 pushes the material to move, some impurities in the material will be thrown to the drive tooth 5 under the action of a large driving force. Under the squeezing of the drive tooth 5 and the chain 9, the impurities will be stuck in the tooth groove of the drive tooth 5), causing the chain 9 to jump teeth. , the moving speed of the scraper frame 111 driven by the chain 9 will be reduced. When the PLC controller 10 detects this situation through the frequency counter 342, it will control the small electric push rod 36 to work reciprocatingly once. The small electric push rod 36 drives the mounting ring 37 and the air intake assembly 43 to move downward together, and keeps the air intake assembly 43 at the bottom for two seconds, so that a scraper frame 111 is squeezed to the second arc block 44, so that the second arc block 44 drives the top plate 45 to move upward through the round rod 432, and uses the top plate 45 to squeeze the telescopic airbag 47, so that the gas inside the telescopic airbag 47 is transported to the horizontal box 38 through the hose 39, so that the air pressure in the space on the left side of the piston block 40 increases, and the piston block 40 moves a certain distance to the right under the action of the air pressure, and then P The LC controller 10 will control the small electric push rod 36 to drive the air intake assembly 43 to move upward. At the same time, the PLC controller 10 will also control the lateral electric push rods 282 on both sides to work, so that the lateral electric push rods 282 drive the cleaning frame 29 to move in the direction close to the driving tooth 5, so that the metal bristles 33 on the surface of the cleaning belt 32 are in contact with the driving tooth 5. Then the PLC controller 10 will control the cleaning motor 31 to work, and the cleaning motor 31 will drive the rotating shaft 30 to rotate, and the rotating shaft 30 will drive the outer cleaning belt 32 to rotate, and the cleaning belt 32 will drive the metal bristles 33 to rotate, and the metal bristles 33 are used to clean the impurities adhered to the surface of the driving tooth 5. After the cleaning work is carried out for one minute, the PLC controller 10 will control the lateral electric push rods 282 drives the cleaning frame 29, the cleaning belt 32 and the metal brush 33 to return to the initial position. When one minute is over, the PLC controller 10 will continue to detect the moving speed of the scraper frame 111 through the frequency counter 342. When the chain 9 is detected to have skipped teeth again, the above steps will be repeated. When the tooth skipping is detected for the third time, the piston block 40 will squeeze the trigger switch 41, and the trigger switch 41 will send an electrical signal to the PLC controller 10. After receiving the electrical signal, the PLC controller 10 will control the external prompt mechanism to work (the external prompt mechanism is a buzzer, which reminds the surrounding operators with a dongdongdong tone) to remind the operator to detect the wear degree of the driven teeth 8 and the driving teeth 5; When the chain 9 becomes loose due to long-term use and wear, the driven shaft 7 will move a certain distance to the left under the action of the spring force inside the moving box 242, so that the pressure sensor between the adjusting rod 26 and the support plate 25 detects that the extrusion force becomes smaller. When the PLC controller 10 detects that the extrusion force becomes smaller through the pressure sensor, the PLC controller 10 will work through the hydraulic cylinder 241, and the hydraulic cylinder 241 will push the moving box 242 to the left, so that the moving box 242 applies pressure to the support plate 25 through the internal spring, so that the support plate 25 applies pressure to the driven shaft 7 and the chain 9, so that the chain 9 is kept at the set tightness, thereby ensuring the conveying efficiency of the conveyor.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A movable scraper conveyor, comprising two side plates (1) and a bottom plate (2) fixedly connected between the two side plates (1), a discharge port (3) being provided on the right side of the bottom plate (2), the side walls of the two side plates (1) being rotatably connected to a same drive shaft (4), a rod wall fixing sleeve of the drive shaft (4) being provided with two drive teeth (5), a rear side wall of the side plate (1) located at the rear side being fixedly connected to a drive motor (6), an output end of the drive motor (6) being connected to a rear end of the drive shaft (4), a side wall of the two side plates (1) being provided with a same driven shaft (7), a rod wall fixing sleeve of the driven shaft (7) being provided with two driven teeth (8), a same chain (9) being provided on the outer sleeves of the drive teeth (5) and the driven teeth (8) located at the same side, a PLC controller (10) being fixedly connected to the rear side wall of the side plate (1) located at the rear side, characterized in that: Also includes: A plurality of scraper assemblies (11) are evenly distributed between the two chains (9) and are used to push the material on the upper side of the bottom plate (2); two adjustment assemblies (24) are respectively fixedly connected to the side walls of the two side plates (1) on the opposite sides and are connected to the driven shaft (7) and are used to adjust the tightness of the chain (9); two cleaning assemblies (28) are respectively arranged on the side walls of the two side plates (1) and are used to clean impurities on the outer side of the driving teeth (5); and an analysis assembly (34) is arranged above the two side plates (1) and is used to detect tooth skipping of the chain (9).

2. A movable scraper conveyor according to claim 1, characterized in that: The scraper assembly (11) comprises a scraper frame (111) and a connecting frame (112); the connecting frame (112) and the chains (9) on the front and rear sides are connected via a bolt assembly; the scraper frame (111) and the connecting frame (112) are connected; a plurality of triangular support frames (12) are fixedly connected inside the scraper frame (111); an air inlet is provided on a side wall of the scraper frame (111) close to the connecting frame (112); an insert ring (13) is fixedly connected to the inner wall of the connecting frame (112); an insert rod (14) is inserted into the insert ring (13); and a piston plate (14) is fixedly connected to one end of the insert rod (14) close to the air inlet. 15), a same spring is fixedly connected between the piston plate (15) and the insert ring (13), one end of the insert rod (14) away from the piston plate (15) is fixedly connected to a placement seat (16), a side wall of the placement seat (16) is fixedly connected to a conductive block (17), the conductive block (17) is electrically connected to an external power supply, the inner wall of the connection frame (112) is inlaid with a conductive plate (18), the conductive plate (18) is electrically connected to a PLC controller (10), the outer wall of the connection frame (112) is fixedly connected to an indicator light (19), and the side wall of the scraper frame (111) is connected to a roughness detection component (20).

3. A movable scraper conveyor according to claim 2, characterized in that: The roughness detection assembly (20) comprises a detection box (201) fixedly connected to the side wall of the scraper frame (111); the inner wall of the detection box (201) is connected to a moving block (202) via a spring; the lower side wall of the moving block (202) is fixedly connected to a vertical rod (21); the lower side wall of the detection box (201) is provided with a sliding opening that matches the vertical rod (21); the lower end of the vertical rod (21) extends out of the sliding opening and is fixedly connected to a friction block (22); the upper inner wall of the detection box (201) is fixedly connected to a detection switch (23); and the detection switch (23) is electrically connected to a PLC controller (10).

4. The movable scraper conveyor according to claim 1, characterized in that: The adjustment assembly (24) comprises a hydraulic cylinder (241) fixedly connected to the side wall of the side plate (1); the movable end of the hydraulic cylinder (241) is fixedly connected to a movable box (242); the inner wall of the movable box (242) is fixedly connected to a support plate (25) via a strong spring; the side wall of the support plate (25) is connected to an adjustment rod (26) via a pressure sensor; one end of the adjustment rod (26) away from the support plate (25) extends out of the movable box (242) and is fixedly connected to a connecting ring (27); the driven shaft (7) is rotatably connected in the connecting ring (27).

5. The movable scraper conveyor according to claim 1, characterized in that: The cleaning assembly (28) comprises a connecting cover (281) fixedly plugged into the side wall of the side plate (1); the side wall of the connecting cover (281) is fixedly connected to a transverse electric push rod (282); the movable end of the transverse electric push rod (282) passes through the connecting cover (281) and is fixedly connected to a cleaning frame (29); the inner wall of the cleaning frame (29) is rotatably connected to two rotating shafts (30); the upper side wall of the cleaning frame (29) is fixedly connected to a cleaning motor (31); the output end of the cleaning motor (31) is fixedly connected to the upper end of the inner rotating shaft (30); the two rotating shafts (30) are provided with a same cleaning belt (32) on their outer sleeves; the outer wall of the cleaning belt (32) is fixedly connected to a plurality of metal bristles (33).

6. The movable scraper conveyor according to claim 1, characterized in that: The analysis component (34) comprises an analysis frame (341) fixedly connected to the outer walls of two side panels (1); a frequency counter (342) is fixedly connected to the upper inner wall of the analysis frame (341) via a bracket; a pressing portion of the frequency counter (342) is connected to a first arc block (35); the frequency counter (342) is electrically connected to a PLC controller (10); a small electric push rod (36) is fixedly connected to the upper side wall of the analysis frame (341); a movable end of the small electric push rod (36) extends out of the analysis frame (341) and is fixedly connected to a mounting plate (35). A ring (37) is provided, wherein the inner wall of the mounting ring (37) is connected to an air intake assembly (43), the upper side wall of the analysis frame (341) is fixedly connected to a horizontal box (38), the horizontal box (38) and the air intake assembly (43) are fixedly connected by a same hose (39), the right inner wall of the horizontal box (38) is connected to a piston block (40) via a spring, the upper inner wall of the horizontal box (38) is fixedly connected to a trigger switch (41), the trigger switch (41) is electrically connected to a PLC controller (10), and the upper side wall of the horizontal box (38) is connected to a capillary tube (42).

7. The movable scraper conveyor according to claim 6, characterized in that: The air intake assembly (43) comprises an air intake cylinder (431), a round rod (432) is inserted into the lower side wall of the air intake cylinder (431), the lower end of the round rod (432) extends out of the air intake cylinder (431) and is connected to a second arc block (44), the upper end of the round rod (432) is located in the air intake cylinder (431) and is fixedly connected to a top plate (45), the inner wall of the air intake cylinder (431) is fixedly connected to a placement plate (46), the placement plate (46) and the top plate (45) are connected to each other. ) are fixedly connected with a same telescopic airbag (47), two springs are fixedly connected between the placement plate (46) and the top plate (45), the upper end of the telescopic airbag (47) is connected with a hose (39), a first one-way valve (48) is provided in the hose (39), the side wall of the hose (39) is connected with an air intake pipe (49), and a second one-way valve (50) is provided in the air intake pipe (49), and the right end of the air intake pipe (49) extends out of the air intake cylinder (431).

8. The movable scraper conveyor according to claim 6, characterized in that: The left side wall of the horizontal box (38) is connected to an air pressure pipe (51), and a pressure valve (52) is provided in the air pressure pipe (51).

Images