Novel air cushion conveyor

Abstract

The novel air cushion conveyor comprises a machine shell, an upper air chamber and a lower air chamber which are correspondingly arranged up and down, the machine shell comprises two assembling bodies which are symmetrical left and right, each assembling body comprises a flat main plate and a side inclined plate, the two fixing parts are fixedly connected through a plurality of fasteners, and the upper air chamber and the lower air chamber are fixedly connected through the fasteners. L-shaped mounting parts are arranged on the upper portions of the side inclined plates in an outward extending mode, a V-shaped top cover is fixedly connected to the two mounting parts, L-shaped connecting parts are arranged on the left side and the right side of the top cover, the two connecting parts are correspondingly attached to the two mounting parts respectively and fixed through a plurality of fasteners, and an arc-shaped lower disc groove body is formed between the lower portions of the two side vertical plates. The upper air chamber is located above the two flat main plates in the machine shell, and the lower air chamber is located below the two flat main plates in the machine shell. The machine shell assembling efficiency can be improved, it is guaranteed that materials enter the middle of the conveying belt, the materials are prevented from being scattered everywhere, and the machine shell is prevented from being rusted.

Description

Technical Field

[0001] The utility model belongs to the field of conveyors, and particularly relates to a novel air-cushion conveyor. Background Art

[0002] In the prior art, there is a cross-sectional structure of a double air-cushion conveyor and the air-cushion conveyor. Its patent application number is 201921227441.X; the application date is July 31, 2019. Its structure includes legs and side sealing plates. An upper air chamber and a lower air chamber are fixedly installed inside the legs. Upper air chamber side plate beams are arranged on both sides of the upper air chamber, and lower air chamber side plate beams are arranged on both sides of the lower air chamber. The lower part of the side sealing plate is installed on the lower air chamber side plate beam, and the upper part of the side sealing plate is installed on the upper air chamber side plate beam. A sealing cover mounting bracket is arranged outside the upper air chamber side plate beam, and a sealing cover is installed inside the sealing cover mounting bracket. The structure of this air-cushion conveyor has been optimized, but its disadvantages are as follows: the cross-sectional structure of this air-cushion conveyor is not convenient enough during assembly, and the installation efficiency is low; when feeding, the material cannot be guaranteed to enter the middle of the conveyor belt, and condensate is likely to be generated inside the casing and cannot be discharged, resulting in corrosion of the casing. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a novel air-cushion conveyor, which can improve the assembly efficiency of the casing, improve the sealing performance of the casing, ensure that the material enters the middle of the conveyor belt, prevent the material from spilling everywhere, ensure that the condensate can be discharged, and avoid corrosion of the casing.

[0004] The purpose of the utility model is achieved as follows: A novel air-cushion conveyor includes a casing. An upper air chamber and a lower air chamber are respectively arranged inside the casing, and the upper air chamber and the lower air chamber are arranged corresponding to each other up and down. The casing includes two symmetrically arranged assembly bodies on the left and right. The assembly body includes a flat main board and a side inclined board. The included angle between the side inclined board and the flat main board is 60° - 80°. L-shaped fixing parts are vertically arranged on the side of the flat main boards of the two assembly bodies close to each other. The two fixing parts are fixedly connected by a plurality of fasteners. The upper part of the side inclined board extends outward to form an L-shaped mounting part. A V-shaped top cover is fixedly connected to the two mounting parts. L-shaped connecting parts are arranged on the left and right sides of the top cover. The two connecting parts respectively fit on the two mounting parts and are fixed by a plurality of fasteners. Two symmetrically arranged side vertical plates are arranged on the lower side of the flat main boards of the two assembly bodies. An arc-shaped lower disc groove body is arranged between the lower parts of the two side vertical plates. The upper air chamber is located above the two flat main boards inside the casing, and the lower air chamber is located below the two flat main boards inside the casing.

[0005] To facilitate the assembly of the casing, the included angle between the side inclined plate and the flat main board is 70° - 75°. Horizontal bending plates 1 and 2 are respectively arranged at the upper and lower ends of the side vertical plate. A number of fastening bolts pass downward through the corresponding flat main board and are fixedly connected to the bending plate 1 of the corresponding side vertical plate. A cushion plate pressed by each fastening bolt is arranged on the upper side of each flat main board. Vertical mounting plates are arranged on the left and right sides of the lower disc groove body. The mounting plates are fixedly attached to the corresponding side vertical plates through fasteners.

[0006] As a further improvement of the present utility model, an air inlet communicated with the upper air chamber is arranged on the outer side of the casing. A converging housing is arranged in the middle of the lower side of the lower disc groove body. Fixed plates fixedly connected to the lower disc groove body are arranged on the left and right sides of the converging housing. A converging cavity is formed inside the converging housing. A connecting pipe connecting the upper air chamber and the converging cavity is arranged on the outer side of the casing. An arc-shaped upper disc groove body sunken downward is arranged in the upper air chamber of the casing. Support plates are arranged on the left and right sides of the upper disc groove body. The two support plates respectively extend to the upper sides of the mounting parts of the side inclined plates of the two assembly bodies and are fixedly connected to the corresponding mounting parts. A number of reinforcing plates are arranged on the lower side of the upper disc groove body. A number of through holes are formed in the upper disc groove body. A number of through holes corresponding to the converging cavity are also formed in the lower disc groove body. A number of reinforcing members are inclinedly arranged between the flat main board and the side inclined plate of each assembly body in the upper air chamber of the casing. Compressed air is introduced into the upper air chamber through the air inlet, and compressed air is introduced into the converging cavity of the lower air chamber through the connecting pipe. The upper disc groove body and the lower disc groove body are respectively used to support the upper conveyor belt and the lower conveyor belt. The compressed air respectively passes through the through holes of the upper disc groove body and the lower disc groove body to the lower sides of the upper conveyor belt and the lower conveyor belt to support the conveyor belt and reduce the friction of the conveyor belt.

[0007] As a further improvement of the present utility model, an L-shaped drain pipe 1 is arranged in the lower air chamber of the casing. A side branch pipe is arranged on the upper side of the drain pipe 1. The side branch pipe and the vertical section of the drain pipe 1 both extend upward and are communicated with the inside of the upper air chamber. The side branch pipe and the vertical section of the drain pipe 1 are arranged opposite to each other left and right. The horizontal section of the drain pipe 1 extends outward from the casing. An L-shaped drain pipe 2 is arranged on the lower side of the converging housing. The drain pipe 2 is communicated with the converging cavity. A feed housing is arranged on the upper part of the casing. A number of support legs are arranged on the lower side of the casing. Condensate is generated when compressed air enters the casing, and condensate is also generated due to the day-night temperature difference. The water in the lower air chamber flows into the converging cavity, and the water in the upper air chamber and the lower air chamber is drained through the drain pipe 1 and the drain pipe 2 respectively.

[0008] As a further improvement of the present utility model, a discharge housing is provided on the front side of the casing. A first flange is provided on the outer periphery of the front end of the casing, and the first flange is fixedly connected to the discharge housing. A front roller is rotatably provided in the discharge housing. A second flange is provided on the outer periphery of the rear end of the casing, and the casing is fixedly connected to a transition housing through the second flange. A third flange is provided at the rear end of the transition housing, and the transition housing is fixedly connected to a return material housing through the third flange. A plurality of support legs are provided on the lower side of the return material housing. The inside of the return material housing, the transition housing, the casing, and the discharge housing are all interconnected. A rear roller is rotatably provided inside the return material housing. A conveyor belt is provided between the front roller and the rear roller. The upper conveyor belt is supported on the upper tray groove body, and the lower conveyor belt is supported on the lower tray groove body. A supporting roller is rotatably provided in the discharge housing, and a supporting roller is also rotatably provided in the transition housing. The two supporting rollers are respectively located in front of and behind the casing, and both supporting rollers support the upper conveyor belt. The supporting roller includes an intermediate section, and variable diameter sections are coaxially provided at both the left and right ends of the intermediate section. The intermediate section is cylindrical, and the outer diameter of the variable diameter section increases from one end close to the intermediate section to the end far from the intermediate section. An expansion shaft is provided in the discharge housing along the width direction, and an expansion roller is provided on the outer periphery of the expansion shaft. The lower conveyor belt is arranged to bypass the upper side of the expansion roller. The roller shaft of the front roller is in transmission connection with the motor. The front roller and the rear roller drive the conveyor belt to move. The upper conveyor belt is supported on the upper tray groove body, and the lower conveyor belt is supported on the lower tray groove body. The upper conveyor belt in front of and behind the upper tray groove body and the lower tray groove body is also supported by two supporting rollers spaced at intervals, so that the shape of the upper conveyor belt is transitioned. The expansion roller provides tension to the conveyor belt.

[0009] As a further improvement of the present utility model, a discharge port is provided at the front side of the bottom of the discharge housing. An inclined discharge plate is disposed inside the discharge housing. The discharge plate is located behind the discharge port, and the height of the discharge plate decreases from the side away from the discharge port to the side close to the discharge port. A scraping mechanism is disposed above the discharge plate inside the discharge housing, and the scraping mechanism is vertically located below the front roller; the scraping mechanism includes a driving shaft and a transmission shaft rotatably disposed inside the discharge housing. A driving motor is installed outside the discharge housing corresponding to the driving shaft. One end of the driving shaft extends out of the discharge housing and is in transmission connection with the driving motor. Both the driving shaft and the transmission shaft are disposed along the width direction of the discharge housing. Two symmetrically arranged sprockets are sleeved on both the driving shaft and the transmission shaft. A chain is provided between two corresponding sprockets front and back. A plurality of scraping plates are arranged at intervals along the length direction between the two chains. The cross section of the scraping plate is T-shaped. Two symmetrically arranged positioning plates are provided at the corresponding ends of each scraping plate on each chain. The two positioning plates are fixedly connected to the corresponding scraping plate through fasteners. The front roller is located behind the discharge port in the length direction. The material is conveyed by the conveyor belt. After the material enters the conveyor belt through the feed port, it is conveyed. When the material is conveyed to the discharge port, it is thrown out. When the material spills onto the discharge plate inside the discharge housing, the driving shaft of the scraping mechanism rotates, drives the two sprockets of the transmission shaft through the two chains, and the scraping plates between the two chains are driven by the chains to scrape the material on the discharge plate, which can prevent the material from spilling through the gaps between the left and right sides of the conveyor belt and the inner wall of the housing, and prevent the material from spilling on the discharge plate and being unable to be discharged.

[0010] As a further improvement of the present utility model, an inlet is provided at the upper part of the feed housing. Two symmetrically arranged guiding side plates are disposed inside the feed housing. Both guiding side plates are inclined, and the distance between the two guiding side plates decreases from top to bottom. An inclined rear guiding plate is correspondingly disposed behind the two guiding side plates inside the feed housing. The rear guiding plate and the two guiding side plates enclose a diversion channel. An outlet communicating with the inside of the housing is provided at the lower part of the feed housing. An observation window is provided on the feed housing, and the observation window is correspondingly arranged with the diversion channel. The material enters the housing through the inlet. The rear guiding plate and the two guiding side plates enclose a diversion channel to guide the material, so that the material gathers towards the middle. After entering the air cushion conveyor, the material is finally distributed in the middle of the conveyor belt of the air cushion conveyor, and the conveying state is more stable; the material can be fed from different directions, with a high error tolerance and reduced installation requirements; by adjusting the installation inclination of the guiding side plates, the inclination angle of the material during feeding can be changed; so that the material gathers towards the middle.

[0011] As a further improvement of the utility model, the rear roller includes a rotating shaft, which is arranged along the width direction of the conveyor housing. The left and right ends of the rotating shaft are rotatably supported on the return material housing. An installation sleeve is sleeved on the rotating shaft, and the outer diameter of the installation sleeve decreases from the middle to the left and right ends. A number of circumferentially evenly distributed reinforcing plates are arranged on the outer periphery of the installation sleeve, and a cylindrical cage body is fixedly sleeved on the outer periphery of each reinforcing plate. The left and right ends of the cage body are open; return material mechanisms are arranged at the left and right ends of the rear roller. The return material mechanism includes a number of circumferentially evenly distributed scraping components. The scraping component includes a loading plate arranged at the end of the rear roller. A positioning pressing plate is fixedly connected to the loading plate. A flexible return material plate is arranged between the positioning pressing plate and the loading plate. The material of the flexible return material plate is rubber. The flexible return material plate is arranged radially. Each flexible return material plate corresponds to the inner wall of the return material housing. Two symmetrically distributed guiding members are arranged on the inner wall of the top of the return material housing corresponding to the return material mechanisms at the left and right ends of the rear roller. The distance between the two guiding members decreases from the side close to the rear roller to the side far from the rear roller. The guiding member is in an L shape. The conveyor belt drives the rear roller to rotate. Each flexible return material plate distributed at intervals in the circumferential direction at both ends scrapes the material at the tail in the return material housing upward. After the material is scraped above the rear roller, it is guided by the two guiding members and moves onto the conveyor belt. The two guiding members are arranged corresponding to the left and right sides of the conveyor belt to complete the return of the material; it can scrape the accumulated material at the tail inside the conveyor back to the position on the return conveyor belt, avoid material waste, and improve the transmission efficiency.

[0012] When the utility model works, materials enter the machine shell through the feeding shell. The front roller and the rear roller drive the conveyor belt to convey. Compressed air is introduced into the upper air chamber upward through the air inlet, and compressed air is introduced into the converging chamber of the lower air chamber through the connecting pipe. The upper disc groove body and the lower disc groove body are respectively used to support the upper conveyor belt and the lower conveyor belt. Compressed air passes through the through holes of the upper disc groove body and the lower disc groove body to the lower parts of the upper conveyor belt and the lower conveyor belt respectively to support the conveyor belt and reduce the friction of the conveyor belt. The conveyor belt conveys the materials to the discharge port and throws them out. When the materials fall on the discharge plate in the discharge shell, the driving shaft of the scraping mechanism rotates, drives the two sprockets of the transmission shaft to rotate through two chains, and each scraper between the two chains drives with the chain. The materials on the discharge plate are scraped away by the scraper, which can avoid the materials from spilling through the gaps between the left and right sides of the conveyor belt and the inner wall of the machine shell, and prevent the materials from falling on the discharge plate and being unable to be discharged. The conveyor belt drives the rear roller to rotate, and each soft return material plate distributed at intervals along the circumference at both ends scrapes the materials at the tail in the return material shell upward. After the materials are scraped above the rear roller, they are guided by two guiding parts and move onto the conveyor belt. The two guiding parts are arranged corresponding to the left and right sides of the conveyor belt to complete the return of materials. It can scrape the accumulated materials at the tail inside the conveyor back to the position on the return conveyor belt, avoid waste of materials, and improve the transmission efficiency. Compared with the prior art, the beneficial effects of the utility model are as follows: it can improve the assembly efficiency of the machine shell and the sealing performance of the machine shell; the rear guiding plate and the two guiding side plates of the feeding shell enclose a diversion channel to ensure that the materials enter the middle of the conveyor belt and prevent the materials from spilling everywhere; the drain pipe 1 and the drain pipe 2 are used to drain the water in the upper air chamber and the lower air chamber to ensure that the condensed water can be discharged and avoid the corrosion of the machine shell. Brief Description of the Drawings

[0013] Figure 1 is the three-dimensional structure diagram of the utility model.

[0014] Figure 2 is the three-dimensional structure diagram of the utility model.

[0015] Figure 3 is the front view of the utility model.

[0016] Figure 4 is the top view of the utility model.

[0017] Figure 5 is Figure 4 the sectional view taken along the AA direction of

[0018] Figure 6 is Figure 5 the partial enlarged view of

[0019] Figure 7 is the sectional view of the drain pipe 2.

[0020] Figure 8 is Figure 4Cross-sectional view in the BB direction.

[0021] Figure 9 is Figure 8 Cross-sectional view in the CC direction.

[0022] Figure 10 is Figure 8 Enlarged view at location D in

[0023] Figure 11 Top view of the scraping mechanism.

[0024] Figure 12 is Figure 11 Enlarged view at location E in

[0025] Figure 13 Stereo structure diagram of the discharge housing.

[0026] Figure 14 Cross-sectional view of the front roller inside the discharge housing in the horizontal direction.

[0027] Figure 15 Stereo structure diagram of the feed housing.

[0028] Figure 16 Stereo structure diagram of the feed housing.

[0029] Figure 17 End face structure schematic diagram of the rear roller.

[0030] Figure 18 Stereo structure diagram of the rear roller.

[0031] Figure 19 Structure schematic diagram of the rear roller inside the return material housing.

[0032] Figure 20 Cross-sectional view of the rear roller.

[0033] Among them, 1 is the housing, 101 is the assembly, 101a is the flat main board, 101b is the side inclined board, 101c is the fixing part, 101d is the installation part, 2 is the upper air chamber, 3 is the lower air chamber, 4 is the top cover, 4a is the connecting part, 5 is the side vertical board, 5a is the first bending board, 5b is the second bending board, 6 is the lower disc groove body, 6a is the installation board, 7 is the backing plate, 8 is the air inlet, 9 is the converging housing, 901 is the fixing board, 9a is the converging cavity, 10 is the connecting pipe, 11 is the upper disc groove body, 11a is the support board, 12 is the reinforcing board, 13 is the reinforcing member, 14 is the first drain pipe, 14a is the side branch pipe, 15 is the second drain pipe, 16 is the feeding housing, 17 is the support leg, 18 is the discharging housing, 19 is the first flange, 20 is the front roller, 21 is the second flange, 22 is the transition housing, 23 is the third flange, 24 is the return material housing, 25 is the rear roller, 25a is the rotating shaft, 25b is the installation sleeve, 25c is the reinforcing board, 25d is the cage body, 26 is the supporting roller, 26a is the middle section, 26b is the reduced diameter section, 27 is the expanding shaft, 27a is the expanding roller, 28 is the discharging port, 29 is the discharging plate, 30 is the driving shaft, 31 is the transmission shaft, 32 is the driving motor, 33 is the sprocket, 34 is the chain, 35 is the scraper, 36 is the positioning plate, 37 is the inlet, 38 is the guiding side plate, 39 is the rear guiding plate, 40 is the outlet, 41 is the observation window, 42 is the loading plate, 43 is the positioning pressure plate, 44 is the return material plate, 45 is the guiding member. Detailed implementation manners

[0034] Such as Figures 1 - 20As shown in the figure, there is a new type of air-cushion conveyor, which includes a casing 1. An upper air chamber 2 and a lower air chamber 3 are respectively arranged inside the casing 1. The upper air chamber 2 and the lower air chamber 3 are arranged corresponding to each other up and down. The casing 1 includes two symmetrically assembled bodies 101 on the left and right. The assembled body 101 includes a flat main board 101a and a side inclined board 101b. The included angle between the side inclined board 101b and the flat main board 101a is 60° - 80°. On the side where the flat main boards 101a of the two assembled bodies 101 are close to each other, an L-shaped fixing part 101c is vertically provided. The two fixing parts 101c are fixedly connected by a number of fasteners. The upper part of the side inclined board 101b extends outward to form an L-shaped mounting part 101d. A V-shaped top cover 4 is fixedly connected to the two mounting parts 101d. L-shaped connecting parts 4a are arranged on the left and right sides of the top cover 4. The two connecting parts 4a are respectively attached to the two mounting parts 101d and fixed by a number of fasteners. Two symmetrically arranged side vertical plates 5 are arranged on the lower side of the flat main boards 101a of the two assembled bodies 101. An arc-shaped lower disc groove body 6 is arranged between the lower parts of the two side vertical plates 5. The upper air chamber 2 is located above the two flat main boards 101a inside the casing 1, and the lower air chamber 3 is located below the two flat main boards 101a inside the casing 1. In order to facilitate the assembly of the casing 1, the included angle between the side inclined board 101b and the flat main board 101a is 70° - 75°. Horizontal bending plates 5a and bending plates 5b are respectively arranged at the upper and lower ends of the side vertical plate 5. A number of fastening bolts pass downward through the corresponding flat main board 101a and are fixedly connected to the bending plate 5a of the corresponding side vertical plate 5. A cushion plate 7 pressed by each fastening bolt is arranged on the upper side of each flat main board 101a. Vertical mounting plates 6a are arranged on the left and right sides of the lower disc groove body 6. The mounting plates 6a are fixedly attached to the corresponding side vertical plates 5 by fasteners.

[0035] An air inlet 8 communicating with the upper air chamber 2 is provided on the outer side of the casing 1. In the middle of the lower side of the lower disc groove body 6, a converging housing 9 is provided. Fixed plates 901 fixed to the lower disc groove body 6 are provided on both the left and right sides of the converging housing 9. A converging cavity 9a is formed inside the converging housing 9. A connecting pipe 10 connecting the upper air chamber 2 and the converging cavity 9a is provided on the outer side of the casing 1. An arc-shaped upper disc groove body 11 recessed downward is provided in the upper air chamber 2 of the casing 1. Support plates 11a are provided on both the left and right sides of the upper disc groove body 11. The two support plates 11a respectively extend to the upper sides of the mounting parts 101d of the side inclined plates 101b of the two assembly bodies 101 and are fixed to the corresponding mounting parts 101d. A plurality of reinforcing plates 12 are provided on the lower side of the upper disc groove body 11. A plurality of through holes are formed in the upper disc groove body 11. A plurality of corresponding through holes are also formed in the lower disc groove body 6 for the converging cavity 9a. A plurality of reinforcing members 13 are inclined between the flat main plates 101a and the side inclined plates 101b of each assembly body 101 in the upper air chamber 2 of the casing 1. Compressed air is introduced into the upper air chamber 2 through the air inlet 8, and the compressed air is introduced into the converging cavity 9a of the lower air chamber 3 through the connecting pipe 10. The upper disc groove body 11 and the lower disc groove body 6 are respectively used to support the upper conveyor belt and the lower conveyor belt. The compressed air passes through the through holes of the upper disc groove body 11 and the lower disc groove body 6 respectively to the lower sides of the upper conveyor belt and the lower conveyor belt to support the conveyor belt and reduce the friction of the conveyor belt. An L-shaped drain pipe 14 is provided in the lower air chamber 3 of the casing 1. A side branch pipe 14a is provided on the upper side of the drain pipe 14. The side branch pipe 14a and the vertical section of the drain pipe 14 both extend upward and communicate with the inside of the upper air chamber 2. The side branch pipe 14a and the vertical section of the drain pipe 14 are arranged opposite to each other left and right. The horizontal section of the drain pipe 14 extends outward from the casing 1. An L-shaped drain pipe 15 is provided on the lower side of the converging housing 9. The drain pipe 15 communicates with the converging cavity 9a. A feed housing 16 is provided on the upper part of the casing 1. A plurality of support legs 17 are provided on the lower side of the casing 1. Condensate is generated when compressed air enters the casing 1, and condensate is also generated due to the day-night temperature difference. The water in the lower air chamber 3 flows into the converging cavity 9a, and the water in the upper air chamber 2 and the lower air chamber 3 is drained through the drain pipe 14 and the drain pipe 15 respectively.

[0036] The upper part of the feed housing 16 is provided with an inlet 37. Inside the feed housing 16, there are two symmetrically arranged guiding side plates 38 on the left and right. Both guiding side plates 38 are inclined. The distance between the two guiding side plates 38 decreases from top to bottom. Corresponding to the rear of the two guiding side plates 38 inside the feed housing 16, there is an inclined rear guiding plate 39. The rear guiding plate 39 and the two guiding side plates 38 enclose a drainage channel. The lower part of the feed housing 16 is provided with an outlet 40 communicating with the inside of the housing 1. An observation window 41 is opened on the feed housing 16, and the observation window 41 is arranged corresponding to the drainage channel. Materials enter the housing 1 through the inlet 37. The drainage channel enclosed by the rear guiding plate 39 and the two guiding side plates 38 guides the materials, making the materials gather towards the middle. After entering the air cushion conveyor, the materials are finally distributed in the middle of the conveyor belt of the air cushion conveyor, and the conveying state is more stable; the materials can be fed from different directions, with a high error tolerance and reduced installation requirements; by adjusting the installation inclination of the guiding side plates 38, the inclination angle of the materials during feeding can be changed; making the materials gather towards the middle.

[0037] On the front side of the housing 1, there is a discharge housing 18. On the outer periphery of the front end of the housing 1, there is a first flange 19, and the first flange 19 is fixedly connected to the discharge housing 18. A front roller 20 is rotatably arranged inside the discharge housing 18. On the outer periphery of the rear end of the housing 1, there is a second flange 21, and the housing 1 is fixedly connected to a transition housing 22 through the second flange 21. At the rear end of the transition housing 22, there is a third flange 23, and the transition housing 22 is fixedly connected to a return material housing 24 through the third flange 23. A plurality of support legs 17 are arranged on the lower side of the return material housing 24. The interiors of the return material housing 24, the transition housing 22, the housing 1, and the discharge housing 18 are all interconnected. A rear roller 25 is rotatably arranged inside the return material housing 24. A conveyor belt is arranged between the front roller 20 and the rear roller 25. The upper conveyor belt is supported on the upper pan trough 11, and the lower conveyor belt is supported on the lower pan trough 6. A supporting roller 26 is rotatably arranged inside the discharge housing 18, and a supporting roller 26 is also rotatably arranged inside the transition housing 22. The two supporting rollers 26 are respectively located in front of and behind the housing 1, and both supporting rollers 26 support the upper conveyor belt. The supporting roller 26 includes an intermediate section 26a, and variable diameter sections 26b are coaxially arranged at both the left and right ends of the intermediate section 26a. The intermediate section 26a is cylindrical, and the outer diameter of the variable diameter section 26b increases from the end close to the intermediate section 26a to the end far from the intermediate section 26a; inside the discharge housing 18, an expansion shaft 27 is arranged along the width direction, and an expansion roller 27a is arranged on the outer periphery of the expansion shaft 27. The lower conveyor belt is arranged to bypass the upper side of the expansion roller 27a. The roller shaft of the front roller 20 is in transmission connection with the motor. The front roller 20 and the rear roller 25 drive the conveyor belt to move. The upper conveyor belt is supported on the upper pan trough 11, and the lower conveyor belt is supported on the lower pan trough 6. The upper conveyor belt in front of and behind the upper pan trough 11 and the lower pan trough 6 is also supported by two spaced-apart supporting rollers 26, so that the shape of the upper conveyor belt is transitioned, and the expansion roller 27a provides tension to the conveyor belt.

[0038] A discharge port 28 is provided at the front side of the bottom of the discharge housing 18. A discharge plate 29 is inclinedly arranged inside the discharge housing 18. The discharge plate 29 is located behind the discharge port 28. The height of the discharge plate 29 decreases from the side away from the discharge port 28 to the side close to the discharge port 28. A scraping mechanism is arranged above the discharge plate 29 inside the discharge housing 18. The scraping mechanism is located below the front roller in the vertical direction; the scraping mechanism includes a driving shaft 30 and a transmission shaft 31 rotatably arranged in the discharge housing 18. A driving motor 32 is installed outside the discharge housing 18 corresponding to the driving shaft 30. One end of the driving shaft 30 extends out of the discharge housing 18 and is in transmission connection with the driving motor 32. The driving shaft 30 and the transmission shaft 31 are both arranged along the width direction of the discharge housing 18. Two symmetrically arranged sprockets 33 are sleeved on both the driving shaft 30 and the transmission shaft 31. A chain 34 is arranged between the two front and rear corresponding sprockets 33. A plurality of scraping plates 35 are arranged at intervals along the length direction between the two chains 34. The cross section of the scraping plate 35 is T-shaped. Two symmetrically arranged positioning plates 36 are arranged at the corresponding ends of each scraping plate 35 on each chain 34. The two positioning plates 36 are fixedly connected to the corresponding scraping plate 35 through fasteners. The front roller is located behind the discharge port 28 in the length direction. The conveyor belt conveys. After the material enters the conveyor belt through the feed port, it is transported. When the material is transported to the discharge port 28, it is thrown out. When the material spills onto the discharge plate 29 inside the discharge housing, the driving shaft 30 of the scraping mechanism rotates, drives the two sprockets 33 of the transmission shaft 31 to rotate through the two chains 34. Each scraping plate 35 between the two chains 34 is driven by the chain 34, and the material on the discharge plate 29 is scraped away by the scraping plate 35, which can prevent the material from spilling from the gaps between the left and right sides of the conveyor belt and the inner wall of the housing 1, and prevent the material from spilling on the discharge plate 29 and being unable to be discharged.

[0039] The rear roller 25 includes a rotating shaft 25a which is arranged along the width direction of the conveyor housing 1. The left and right ends of the rotating shaft 25a are rotatably supported on the return material housing 24. An installation sleeve 25b is sleeved on the rotating shaft 25a, and the outer diameter of the installation sleeve 25b decreases from the middle to the left and right ends. A number of circumferentially evenly distributed reinforcing plates 25c are arranged on the outer periphery of the installation sleeve 25b, and a cylindrical cage 25d is fixedly sleeved on the outer periphery of each reinforcing plate 25c. The left and right ends of the cage 25d are open. Return material mechanisms are arranged at the left and right ends of the rear roller 25. The return material mechanism includes a number of circumferentially evenly distributed scraping components. The scraping component includes a loading plate 42 arranged at the end of the rear roller 25. A positioning pressing plate 43 is fixedly connected to the loading plate 42. A flexible return material plate 44 is arranged between the positioning pressing plate 43 and the loading plate 42. The flexible return material plate 44 is made of rubber and is arranged radially. Each flexible return material plate 44 is arranged corresponding to the inner wall of the return material housing 24. Two symmetrically distributed guiding members 45 are arranged on the inner wall of the top of the return material housing 24 corresponding to the return material mechanisms at the left and right ends of the rear roller 25. The distance between the two guiding members 45 decreases from the side close to the rear roller 25 to the side far from the rear roller 25. The guiding member 45 is in an L shape. The conveyor belt drives the rear roller 25 to rotate. Each flexible return material plate 44 which is circumferentially spaced at both ends scrapes the material at the tail inside the return material housing 24 upward. After the material is scraped above the rear roller 25, it is guided by the two guiding members 45 and moves onto the conveyor belt. The two guiding members 45 are arranged corresponding to the left and right sides of the conveyor belt to complete the return of the material; it can scrape the accumulated material at the tail inside the conveyor back to the position on the return conveyor belt, avoid waste of materials, and improve the transmission efficiency.

[0040] When the utility model works, materials enter the machine shell 1 through the feeding shell 16. The front roller 20 and the rear roller 25 drive the conveyor belt to convey. Compressed air is introduced into the upper air chamber 2 through the air inlet 8. The connecting pipe 10 connects the converging chamber 9a of the lower air chamber 3 to introduce compressed air. The upper disc groove body 11 and the lower disc groove body 6 are respectively used to support the upper conveyor belt and the lower conveyor belt. Compressed air passes through the through holes of the upper disc groove body 11 and the lower disc groove body 6 to reach the lower sides of the upper conveyor belt and the lower conveyor belt respectively, so as to support the conveyor belt and reduce the friction of the conveyor belt. The conveyor belt conveys the materials to the discharge port 28 and throws them out. When the materials fall on the discharge plate 29 in the discharge shell, the driving shaft 30 of the scraping mechanism rotates, drives the two sprockets 33 of the transmission shaft 31 to rotate through the two chains 34. Each scraper 35 between the two chains 34 is driven by the chain 34, and the materials on the discharge plate 29 are scraped away by the scraper 35, which can prevent the materials from spilling from the gaps between the left and right sides of the conveyor belt and the inner wall of the machine shell 1, and prevent the materials from falling on the discharge plate 29 and being unable to be discharged. The conveyor belt drives the rear roller 25 to rotate, and each flexible return plate 44 distributed at intervals along the circumference at both ends scrapes the materials at the tail in the return shell 24 upward. After the materials are scraped above the rear roller 25, they are guided by the two guiding members 45 and move onto the conveyor belt. The two guiding members 45 are arranged corresponding to the left and right sides of the conveyor belt to complete the return of materials; it can scrape the accumulated materials at the tail inside the conveyor back to the position on the return conveyor belt, avoid waste of materials, and improve the transmission efficiency. The advantages of the utility model are as follows: it can improve the assembly efficiency of the machine shell 1 and the sealing performance of the machine shell 1; the rear guiding plate 39 and the two guiding side plates 38 of the feeding shell 16 enclose a diversion channel to ensure that the materials enter the middle of the conveyor belt and prevent the materials from spilling everywhere; the drain pipe 14 and the drain pipe 15 are used to drain the water in the upper air chamber 2 and the lower air chamber 3, ensure that the condensed water can be discharged, and avoid rusting of the machine shell 1.

[0041] The utility model is not limited to the above embodiments. Based on the technical solutions disclosed in the utility model, those skilled in the art can make some substitutions and deformations of some technical features without creative labor according to the disclosed technical content, and these substitutions and deformations are all within the protection scope of the utility model.

Claims

1. A new type of air cushion conveyor, comprising a housing, wherein an upper air chamber and a lower air chamber are respectively arranged inside the housing, and the upper air chamber and the lower air chamber are arranged corresponding to each other up and down, characterized in that, The casing includes two symmetrically assembled bodies on the left and right. Each assembled body includes a flat main board and a side inclined board. The included angle between the side inclined board and the flat main board is 60° - 80°. On the side of the flat main boards of the two assembled bodies close to each other, there is a vertically arranged L-shaped fixing part. The two fixing parts are fixedly connected by a number of fasteners. The upper part of the side inclined board extends outward to form an L-shaped mounting part. An L-shaped cover is fixedly connected to the two mounting parts. On the left and right sides of the cover, there are L-shaped connecting parts respectively. The two connecting parts are respectively attached to the two mounting parts and fixed by a number of fasteners. On the lower side of the flat main boards of the two assembled bodies, there are two symmetrically arranged vertical side plates on the left and right. Between the lower parts of the two side plates, there is an arc-shaped lower disc groove body; The upper air chamber is located above the two flat main boards in the casing, and the lower air chamber is located below the two flat main boards in the casing.

2. A novel air cushion conveyor according to claim 1, characterized in that, The included angle between the side inclined board and the flat main board is 70° - 75°. Horizontally arranged bending plates one and two are respectively provided at the upper and lower ends of the side plate. A number of fastening bolts pass downward through the corresponding flat main board and are fixedly connected to the bending plate one of the corresponding side plate. On the upper side of each flat main board, there is a backing plate pressed by each fastening bolt. On the left and right sides of the lower disc groove body, there are vertical mounting plates. The mounting plates are fixedly attached to the corresponding side plates by fasteners.

3. A novel air cushion conveyor according to claim 1 or 2, characterized in that, An air inlet communicating with the upper air chamber is provided on the outer side of the casing. In the middle of the lower side of the lower disc groove body, there is a converging housing. On the left and right sides of the converging housing, there are fixing plates fixedly connected to the lower disc groove body. A converging cavity is opened inside the converging housing. A connecting pipe connecting the upper air chamber and the converging cavity is provided on the outer side of the casing. An arc-shaped upper disc groove body sunken downward is provided in the upper air chamber of the casing. On the left and right sides of the upper disc groove body, there are support plates. The two support plates respectively extend to the upper side of the mounting parts of the side inclined boards of the two assembled bodies and are fixedly connected to the corresponding mounting parts. A number of reinforcing plates are provided on the lower side of the upper disc groove body. A number of through holes are opened on the upper disc groove body. A number of through holes corresponding to the converging cavity are also opened on the lower disc groove body; Inside the upper air chamber of the casing, a number of reinforcing members are inclined between the flat main board and the side inclined board of each assembled body.

4. A novel air cushion conveyor according to claim 3, characterized in that, An L-shaped drain pipe one is provided in the lower air chamber of the casing. On the upper side of the drain pipe one, there is a side branch pipe. The side branch pipe and the vertical section of the drain pipe one extend upward and communicate with the inside of the upper air chamber. The side branch pipe and the vertical section of the drain pipe one are arranged opposite to each other left and right. The horizontal section of the drain pipe one extends outward from the casing. An L-shaped drain pipe two is provided on the lower side of the converging housing. The drain pipe two communicates with the converging cavity. A feeding housing is provided on the upper part of the casing. A number of support legs are provided on the lower side of the casing.

5. A novel air cushion conveyor according to claim 4, characterized in that, A discharge shell is provided on the front side of the casing, a flange 1 is provided on the outer periphery of the front end of the casing, the flange 1 is fixedly connected to the discharge shell, a front roller is rotatably provided in the discharge shell, a flange 2 is provided on the outer periphery of the rear end of the casing, the casing is fixedly connected to the transition shell through the flange 2, a flange 3 is provided at the rear end of the transition shell, the transition shell is fixedly connected to the return shell through the flange 3, a plurality of supporting legs are provided on the lower side of the return shell, the return shell, the transition shell, the casing and the discharge shell are all connected, a rear roller is rotatably provided in the return shell, a conveyor belt is provided between the front roller and the rear roller, and the upper conveyor belt supports The conveyor belt of the lower layer is supported on the upper plate trough body, and a roller is rotatably arranged in the discharge shell body, and a roller is also rotatably arranged in the transition shell body. The two rollers are respectively located in the front and rear of the casing, and the two rollers support the upper conveyor belt. The rollers include a middle section, and the left and right ends of the middle section are coaxially provided with variable diameter sections. The middle section is cylindrical, and the outer diameter of the variable diameter section is gradually increased from the end close to the middle section to the end away from the middle section; an expansion shaft is arranged in the width direction of the discharge shell body, and an expansion roller is arranged on the outer periphery of the expansion shaft, and the lower conveyor belt is arranged around the upper side of the expansion roller.

6. A novel air cushion conveyor according to claim 5, characterized in that, A discharge port is provided at the front side of the bottom of the discharge shell, a discharge plate is obliquely arranged inside the discharge shell, the discharge plate is located behind the discharge port, and the height of the discharge plate is gradually reduced from the side away from the discharge port to the side close to the discharge port, a scraper mechanism is arranged above the discharge plate inside the discharge shell, and the scraper mechanism is located below the front roller in the vertical direction; the scraper mechanism includes a driving shaft and a transmission shaft rotatably arranged in the discharge shell, a driving motor is installed outside the discharge shell corresponding to the driving shaft, and one end of the driving shaft extends out of the discharge shell It is transmission connected with the driving motor, the driving shaft and the transmission shaft are arranged along the width direction of the discharge shell, and two left-right symmetrical sprockets are sleeved on the driving shaft and the transmission shaft. A chain is provided between the two corresponding front and rear sprockets, and a number of scrapers are arranged in sequence and spaced along the length direction between the two chains. The cross-section of the scraper is T-shaped, and two left-right symmetrical positioning plates are provided at the corresponding end of each chain corresponding to each scraper. The two positioning plates are fixedly connected to the corresponding scraper by fasteners, and the front roller is located behind the discharge port in the length direction.

7. A novel air cushion conveyor according to claim 5, characterized in that, An inlet is provided at the upper portion of the feed shell, and two left-right symmetrical guide side plates are arranged in the feed shell. The two guide side plates are both inclined, and the distance between the two guide side plates decreases from top to bottom. An inclined rear guide plate is correspondingly arranged behind the two guide side plates in the feed shell, and the rear guide plate and the two guide side plates form a drainage channel. An outlet connected to the interior of the casing is provided at the lower portion of the feed shell, and an observation window is provided on the feed shell, and the observation window is arranged corresponding to the drainage channel.

8. A novel air cushion conveyor according to claim 5, characterized in that, The rear roller includes a rotating shaft which is arranged along the width direction of the conveyor housing. The left and right ends of the rotating shaft are rotatably supported on the return material housing. An installation sleeve is sleeved on the rotating shaft, and the outer diameter of the installation sleeve decreases from the middle to the left and right ends. A number of circumferentially evenly distributed reinforcing plates are arranged on the outer periphery of the installation sleeve, and a cylindrical cage body is fixedly sleeved on the outer periphery of each reinforcing plate. The left and right ends of the cage body are open. Return material mechanisms are arranged at the left and right ends of the rear roller. The return material mechanism includes a number of circumferentially evenly distributed scraping components. The scraping component includes a loading plate arranged at the end of the rear roller. A positioning pressing plate is fixedly connected to the loading plate. A flexible return material plate is arranged between the positioning pressing plate and the loading plate. The material of the flexible return material plate is rubber. The flexible return material plate is arranged radially, and each flexible return material plate corresponds to the inner wall of the return material housing. Two symmetrically distributed guiding members are arranged on the inner wall of the top of the return material housing corresponding to the return material mechanisms at the left and right ends of the rear roller. The distance between the two guiding members decreases from the side close to the rear roller to the side far from the rear roller. The guiding member is in an L shape.

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