Middle section structure of air cushion conveyor

Abstract

The utility model belongs to the technical field of air cushion conveyors, and particularly relates to an air cushion conveyor middle section structure which comprises two side plates, a lower cavity plate is fixedly connected between the two side plates, the top ends of the two side plates are fixedly connected with an upper cavity plate in a matched mode, one side plate is connected with an air inlet pipe, the two sides of the upper cavity plate are both fixedly connected with limiting baffles, and the air inlet pipe is connected with an air outlet pipe. A belt is arranged above the upper cavity plate, the belt is arranged between the two limiting baffles, a plurality of flow guide holes are formed in the middle of the upper cavity plate, and an air cylinder is fixedly connected to a port of each flow guide hole; in the conveying process, the two sides and the middle part of the belt can be supported, so that the stability and reliability of the belt in the conveying process can be ensured, the bumping phenomenon of the belt is avoided, the stable operation of the belt is facilitated, the stable conveying of materials is realized, and the working efficiency is improved. And abrasion and vibration of the belt in the operation process can be reduced, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of air cushion conveyors, and specifically to an intermediate section structure of an air cushion conveyor. Background Art

[0002] An air cushion conveyor is a device that uses air flow to generate a supporting force to achieve flexible transportation of materials, and is widely used in many fields such as grain and oil, ports, metallurgy, thermal power, precision electronics, semiconductor manufacturing, food processing, medicine and health, and heavy machinery.

[0003] A Chinese patent with the publication number CN213922728U discloses an intermediate section structure of an air cushion belt conveyor, including side plates, a cover plate, an upper air chamber, a lower air chamber, and a pressing plate; both ends of the side plates are fixedly connected to the support legs by bolts; the cover plate is fixedly connected above the two side plates by bolts; the upper air chamber is located below the belt; the lower air chamber is located below the return belt; the pressing plate is fixedly connected above the cover plate by bolts, and the pressing plate is located above the cover plate; the side plates are also stainless steel plates with a thickness of two millimeters, which can greatly improve the sealing performance and reduce the noise generated during operation due to vibration. By connecting the bolts between the pressing plate and the connecting frame, the middle cover plate is fixed, improving the connection stability of the cover plate. It can be seen that the structure of the existing air cushion belt conveyor has been improved. The materials and connection relationships of the cover plate and side plates that are not load-bearing components have been improved, improving the splicing tightness and reducing the overall weight.

[0004] In the existing air cushion conveyor, during the conveying process, air is introduced through the air inlet holes in the middle to achieve the floating of the belt. Due to the unstable pressure value in the pressurizing chamber, it is easy to cause the conveyor belt to jolt, which will not only affect the smooth conveying of materials, but also may cause the scattering and damage of materials. Moreover, the frequent jolting of the conveyor belt will increase the friction and collision between equipment components, thereby aggravating the wear of the equipment and reducing its service life. Therefore, an intermediate section structure of an air cushion conveyor is proposed for the above problems. Content of the Utility Model

[0005] In order to make up for the deficiencies of the prior art and solve the problems raised in the above background art, the utility model proposes an intermediate section structure of an air cushion conveyor.

[0006] The technical solution adopted by the present utility model to solve its technical problems is as follows: The middle section structure of an air cushion conveyor described in the present utility model includes two side plates. A lower chamber plate is fixedly connected between the two side plates. An upper chamber plate is fixedly connected in cooperation with the tops of the two side plates. An air inlet pipe is connected to one of the side plates. Limiting baffles are fixedly connected to both sides of the upper chamber plate. A belt is arranged above the upper chamber plate, and the belt is arranged between the two limiting baffles. A plurality of diversion holes are opened at the middle position of the upper chamber plate. An air cylinder is fixedly connected to the port of each diversion hole. A piston is arranged in the air cylinder. A lifting rod is fixedly connected to the piston, and the top of the lifting rod passes through the top of the air cylinder and is fixedly connected to a fixed seat. A supporting wheel is rotatably installed in the fixed seat. Air inlets are opened on both sides of the circumferential surface at the bottom of each air cylinder. Two supporting airbag strips are fixedly connected to the upper chamber plate, and air injection holes are opened at the bottoms of the supporting airbag strips. During the conveying process, gas is injected into the chamber through the air inlet pipe. The gas in the chamber will flow into the supporting airbag strips through the air injection holes, causing the supporting airbag strips to inflate with air and support both sides of the belt. At the same time, the gas in the chamber will also enter the air cylinders through the diversion holes. The gas entering the air cylinders will push the piston upward, and then the lifting rod will drive the supporting wheel to move upward accordingly, so as to realize the supporting operation on both sides and the middle part of the belt, thereby ensuring the stability and reliability of the belt during the conveying process, avoiding the phenomenon of the belt jolting, contributing to the stable operation of the belt, realizing the smooth conveying of materials, and also reducing the wear and vibration of the belt during operation, improving the service life of the equipment.

[0007] Preferably, a compensation airbag is fixedly connected to the side plate far from the air inlet pipe. A plurality of air inlet holes are opened on the side plate close to the compensation airbag. Three limiting rods are fixedly connected to the side plate far from the air inlet pipe. An extrusion plate is sleeved in cooperation with the three limiting rods, and the extrusion plate is arranged outside the compensation airbag. Three springs are fixedly connected between the extrusion plate and the side plate, and the three springs are correspondingly sleeved on the limiting rods. When a failure occurs in injecting gas through the air inlet pipe, the springs are compressed, driving the extrusion plate to extrude the compensation airbag, so that the gas in the compensation airbag will flow into the chamber through the air inlet holes, and can continue to provide the required gas for the supporting airbag strips and the air cylinders, thereby maintaining the supporting effect on the belt. The compensation airbag is a pre-filled airbag with a certain amount of gas. It is designed to provide an additional gas source when the air inlet pipe fails. Even if a failure occurs in the air intake of the air inlet pipe 4, the belt can still maintain a normal operating state through the backup mechanism, thereby reducing the downtime and production losses caused by failures.

[0008] Preferably, the two side plates are fixedly connected in cooperation with a housing cover, and the housing cover is arranged outside the belt and the upper chamber plate. When using this device, by setting the housing cover, it can effectively block flying objects, prevent them from hurting people or damaging surrounding equipment, and can also reduce the diffusion of dust, protecting the environment and the health of personnel.

[0009] The advantages of the present utility model are as follows:

[0010] 1. During the conveying process of the present utility model, gas is injected into the chamber through the intake pipe. The gas in the chamber will flow into the support airbag strip through the injection holes, causing the support airbag strip to inflate with air intake and support both sides of the belt. At the same time, the gas in the chamber will also enter the air cylinder through the diversion holes. The gas entering the air cylinder will push the piston upward, and then the lifting rod will drive the supporting wheel to move upward accordingly, so as to realize the supporting operation on both sides and the middle part of the belt, ensure the stability and reliability of the belt during the conveying process, avoid the phenomenon of the belt jolting, contribute to the stable operation of the belt, realize the smooth conveying of materials, reduce the wear and vibration of the belt during operation, and improve the service life of the equipment;

[0011] 2. When a failure occurs in injecting gas through the intake pipe in the present utility model, the spring is compressed, driving the extrusion plate to squeeze the compensation airbag, so that the gas in the compensation airbag will flow into the chamber through the intake hole, and can continue to provide the required gas for the support airbag strip and the air cylinder, thus maintaining the supporting effect on the belt. The compensation airbag is an airbag pre-filled with a certain amount of gas, which is designed to provide an additional gas source when the intake pipe fails. Even if a failure occurs in the intake of the intake pipe 4, the belt can still be maintained in a normal operating state through the backup mechanism, thereby reducing the downtime and production losses caused by failures. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0013] Figure 1 It is a schematic perspective side view of the whole device;

[0014] Figure 2 It is a schematic perspective bottom view of the whole device;

[0015] Figure 3 It is a schematic perspective partial view of the device;

[0016] Figure 4 It is a schematic perspective view of the upper chamber plate assembly;

[0017] Figure 5 It is a schematic perspective view of the supporting mechanism.

[0018] In the figure: 1, side plate; 2, lower chamber plate; 3, upper chamber plate; 4, intake pipe; 5, limit baffle; 6, belt; 7, support airbag strip; 8, air injection hole; 9, diversion hole; 10, air cylinder; 11, piston; 12, lifting rod; 13, fixed seat; 14, supporting wheel; 15, air inlet; 16, air intake hole; 17, compensation airbag; 18, limit rod; 19, extrusion plate; 20, spring; 21, housing cover. Detailed implementation manner

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-5 As shown, a middle section structure of an air cushion conveyor includes two side plates 1. A lower chamber plate 2 is fixedly connected between the two side plates 1. An upper chamber plate 3 is fixedly connected to the tops of the two side plates 1 in a matching manner. An intake pipe 4 is connected to one of the side plates 1. Limit baffles 5 are fixedly connected to both sides of the upper chamber plate 3. A belt 6 is arranged above the upper chamber plate 3, and the belt 6 is arranged between the two limit baffles 5. A plurality of diversion holes 9 are opened at the middle position of the upper chamber plate 3. An air cylinder 10 is fixedly connected to the port of each diversion hole 9. A piston 11 is arranged in the air cylinder 10. A lifting rod 12 is fixedly connected to the piston 11, and the top of the lifting rod 12 passes through the top of the air cylinder 10 and is fixedly connected to a fixed seat 13. A supporting wheel 14 is rotatably installed in the fixed seat 13. Air inlets 15 are opened on both sides of the circumferential surface at the bottom of each air cylinder 10. Two support airbag strips 7 are fixedly connected to the upper chamber plate 3, and air injection holes 8 are opened at the bottoms of the support airbag strips 7; during the conveying process, gas is injected into the chamber through the intake pipe 4. The gas in the chamber will flow into the support airbag strips 7 through the air injection holes 8, causing the support airbag strips 7 to inflate with air and support both sides of the belt 6. At the same time, the gas in the chamber will also enter the air cylinders 10 through the diversion holes 9. The gas entering the air cylinders 10 will push the piston 11 upward, and then the lifting rod 12 will drive the supporting wheel 14 to move upward accordingly, so as to realize the supporting operation on both sides and the middle part of the belt 6, thus ensuring the stability and reliability of the belt 6 during the conveying process, avoiding the phenomenon of the belt 6 jolting, helping the belt 6 to run stably, realizing the smooth conveying of materials, reducing the wear and vibration of the belt 6 during the running process, and improving the service life of the equipment.

[0021] Please refer to Figures 2-3As shown in the figure, a compensation airbag 17 is fixedly connected to the side plate 1 away from the intake pipe 4. A plurality of air inlet holes 16 are formed in the side plate 1 near the compensation airbag 17. Three limit rods 18 are fixedly connected to the side plate 1 away from the intake pipe 4. The three limit rods 18 are cooperatively sleeved with an extrusion plate 19, and the extrusion plate 19 is arranged outside the compensation airbag 17. Three springs 20 are fixedly connected between the extrusion plate 19 and the side plate 1, and the three springs 20 are correspondingly sleeved on the limit rods 18. When a gas injection failure occurs through the intake pipe 4, the springs 20 are compressed, driving the extrusion plate 19 to extrude the compensation airbag 17, so that the gas in the compensation airbag 17 will flow into the chamber through the air inlet holes 16, and can continue to provide the required gas for the support airbag strips 7 and the air cylinders 10, thereby maintaining the supporting effect on the belt 6. The compensation airbag 17 is an airbag pre-filled with a certain amount of gas, which is designed to provide an additional gas source when the intake pipe 4 fails. Even if the intake of the intake pipe 4 fails, the belt 6 can be maintained in a normal operating state through the backup mechanism, thereby reducing the downtime and production losses caused by the failure.

[0022] Please refer to Figure 1 As shown in the figure, two side plates 1 are cooperatively and fixedly connected with a housing 21, and the housing 21 is arranged outside the belt 6 and the upper chamber plate 3. When using this device, by setting the housing 21, it can effectively block splashes, prevent them from hurting people or damaging surrounding equipment, and can also reduce the diffusion of dust, protecting the environment and the health of personnel.

[0023] Working principle: In the existing air-cushion conveyor, during the conveying process, air enters through the air inlet holes in the middle to achieve the floating of the belt 6. Due to the unstable pressure value in the pressurized chamber, it is easy to cause the phenomenon of the conveyor belt jolting. This will not only affect the smooth conveying of materials, but also may cause the scattering and damage of materials. Moreover, the frequent jolting of the conveyor belt will increase the friction and collision between equipment components, thereby aggravating the wear of the equipment and reducing its service life. Therefore, an air-cushion conveyor middle section structure is proposed to solve the above problems. During the conveying process, gas is injected into the chamber through the intake pipe 4. The gas in the chamber will flow into the support airbag strips 7 through the injection holes 8, causing the support airbag strips 7 to inflate with air and support both sides of the belt 6. At the same time, the gas in the chamber will also enter the air cylinder 10 through the diversion holes 9. The gas entering the air cylinder 10 will push the piston 11 to move upward, and then the lifting rod 12 will drive the supporting wheel 14 to move upward accordingly, so as to realize the supporting operation on both sides and the middle part of the belt 6, thereby ensuring the stability and reliability of the belt 6 during the conveying process, avoiding the phenomenon of the belt 6 jolting, helping the belt 6 to run stably, realizing the smooth conveying of materials, and also reducing the wear and vibration of the belt 6 during the running process, improving the service life of the equipment.

[0024] When a failure occurs in injecting gas through the intake pipe 4, the spring 20 compresses, driving the extrusion plate 19 to extrude the compensation airbag 17, so that the gas in the compensation airbag 17 will flow into the chamber through the air inlet hole 16, and can continue to provide the required gas for the support airbag strip 7 and the air cylinder 10, thereby maintaining the supporting effect on the belt 6. The compensation airbag 17 is an airbag pre-filled with a certain amount of gas, which is designed to provide an additional gas source when the intake pipe 4 fails. Even if the intake of the intake pipe 4 fails, the belt 6 can be maintained in a normal operating state through the backup mechanism, thereby reducing the downtime and production losses caused by the failure.

[0025] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0026] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. An air cushion conveyor middle section structure, characterized in that: The invention comprises two side plates (1), a lower chamber plate (2) is fixedly connected between the two side plates (1), an upper chamber plate (3) is fixedly connected to the top ends of the two side plates (1), an air intake pipe (4) is connected to one of the side plates (1), both sides of the upper chamber plate (3) are fixedly connected to limit baffles (5), a belt (6) is arranged above the upper chamber plate (3), and the belt (6) is arranged between the two limit baffles (5), and a belt (6) is provided in the middle of the upper chamber plate (3) There are a plurality of flow guide holes (9), and a gas cylinder (10) is fixedly connected to the end of each flow guide hole (9). A piston (11) is arranged in the gas cylinder (10), and a lifting rod (12) is fixedly connected to the piston (11). The top end of the lifting rod (12) passes through the top end of the gas cylinder (10) and is fixedly connected to a fixed seat (13). A supporting wheel (14) is rotatably installed in the fixed seat (13). Both sides of the circumferential surface of the bottom end of each gas cylinder (10) are provided with air inlets (15).

2. The middle section structure of an air cushion conveyor according to claim 1, characterized in that: Two supporting airbag strips (7) are fixedly connected to the upper chamber plate (3), and air injection holes (8) are provided at the bottoms of the supporting airbag strips (7).

3. The middle section structure of an air cushion conveyor according to claim 1, characterized in that: A compensation air bag (17) is fixedly connected to the side plate (1) away from the air inlet pipe (4), and a plurality of air inlet holes (16) are provided on the side plate (1) close to the compensation air bag (17).

4. The middle section structure of an air cushion conveyor according to claim 1, characterized in that: Three limiting rods (18) are fixedly connected to the side plate (1) away from the air intake pipe (4), and the three limiting rods (18) are sleeved with a pressing plate (19), and the pressing plate (19) is arranged on the outside of the compensation airbag (17).

5. The middle section structure of an air cushion conveyor according to claim 4, characterized in that: Three springs (20) are fixedly connected between the extrusion plate (19) and the side plate (1), and the three springs (20) are correspondingly sleeved on the limiting rod (18).

6. The middle section structure of an air cushion conveyor according to claim 1, characterized in that: The two side plates (1) are fixedly connected with a shell cover (21), and the shell cover (21) is arranged on the outside of the belt (6) and the upper chamber plate (3).

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