Air suspension belt conveyor with adjustable belt length and conveying system

Abstract

The present invention discloses an air-suspended belt conveyor and a conveying system with adjustable belt length, which relate to the field of transportation technology, and include a stabilizing frame and an adjusting device, wherein a stabilizing rod is fixedly installed on the inner wall of the stabilizing frame, an adjusting frame is slidably installed on the surface of the stabilizing rod, a servo motor is fixedly installed on the front side of the adjusting frame, a driving roller is fixedly installed on the output end of the servo motor, a matching frame is slidably installed on the surface of the stabilizing rod, a supporting roller is rotatably installed on the inner wall of the matching frame, a displacement plate is slidably installed on the inner wall of the stabilizing frame, a displacement rod is rotatably installed on the rear side of the displacement plate, the matching frame moves in a direction close to the stabilizing frame to drive the supporting roller to move, and the movement of the supporting roller drives the conveyor belt to move to adjust the length, and the loosening and deviation of the conveyor belt can be reduced by the L-shaped plate, and the frequency of equipment failures caused by the instability of the conveyor belt can be reduced, thereby improving the reliability of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of transportation, and in particular to an air suspension belt conveyor with adjustable belt length and a conveying system. Background Art

[0002] Air suspension belt conveyor usually consists of conveyor belt, air suspension device, driving device and guide device.

[0003] The patent with the patent announcement number CN217625667U relates to an air suspension belt conveyor mechanism, including an air compression pipeline, the air compression pipeline is provided with multiple, the top of which is fixedly connected to a support plate, the support plate is provided with multiple exhaust holes that are connected to the air compression pipeline, the two sides of the support plate are fixedly and detachably connected to side baffles, and a belt is provided between the support plate and the two side baffles, and the belt is located on the top side of each exhaust hole. This patent greatly improves the transmission efficiency of the belt, reduces the wear of the belt, and effectively extends the service life of the belt. It has strong applicability, ingenious design, stable structure, and convenient use, meeting people's use needs in the process of conveying materials in the sorting machine.

[0004] In the above patent, the belt wear is reduced and the service life of the belt is effectively extended. It has strong applicability, ingenious design, stable structure and convenient use, which meets people's use needs in the process of conveying materials in the sorting machine. However, it is difficult to prevent the loosening of the conveyor belt caused by accidental adjustment. The loose conveyor belt will cause unstable operation of the equipment, thereby increasing the risk of injury to workers during operation. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an air suspension belt conveyor and a conveying system with adjustable belt length, which solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an air-suspended belt conveyor with adjustable belt length, comprising a stabilizing frame and an adjusting device, wherein a stabilizing rod is fixedly installed on the inner wall of the stabilizing frame, an adjusting frame is slidably installed on the surface of the stabilizing rod, a servo motor is fixedly installed on the front side of the adjusting frame, a driving roller is fixedly installed on the output end of the servo motor, a matching frame is slidably installed on the surface of the stabilizing rod, a supporting roller is rotatably installed on the inner wall of the matching frame, a displacement plate is slidably installed on the inner wall of the stabilizing frame, a displacement rod is rotatably installed on the rear side of the displacement plate, a conveyor belt is arranged on the circumferential surface of the displacement rod, and an air suspension is arranged on the rear side of the stabilizing rod. A floating device, wherein the adjustment device includes a load-bearing rod, a load-bearing plate, a U-shaped frame, a protective frame, an L-shaped plate, an adjustment hole and a limit rod. After the limit of the matching frame is released, the matching frame is manually pushed to move in the direction close to the stable frame. The movement of the matching frame in the direction close to the stable frame drives the support roller to move. The movement of the support roller drives the conveyor belt to move for length adjustment. The load-bearing rod is fixedly installed on the front side of the stable frame, the load-bearing plate is slidably installed on the circumferential surface of the load-bearing rod, the U-shaped frame is fixedly installed on the front side of the load-bearing plate, the protective frame is fixedly installed on the front side of the stable frame, the L-shaped plate slides through the inner and outer walls of the protective frame, the adjustment hole is opened on the front side of the matching frame, and the limit rod is fixedly installed on the rear side of the load-bearing plate.

[0007] According to the above technical solution, a linkage plate is fixedly installed on one side of the L-shaped plate close to the stabilizing frame, and an adjustment spring is arranged between the load-bearing rod and the load-bearing plate. The load-bearing plate can be reset by the adjustment spring, and the limit rod is in contact with the inner wall of the adjustment hole.

[0008] According to the above technical solution, a No. 1 spring is arranged between the displacement plate and the stabilization frame, one end of the No. 1 spring is arranged on the inner wall of the stabilization frame, and the other end is arranged on the surface of the displacement plate. The No. 1 spring can drive the displacement plate to reset, and a No. 2 spring is arranged between the protection frame and the L-shaped plate, one end of the No. 2 spring is arranged on the inner wall of the protection frame, and the other end is arranged on the surface of the L-shaped plate. The No. 2 spring can drive the L-shaped plate to reset, and the L-shaped plate is in contact with the load-bearing plate, and the conveyor belt can be supported by the displacement plate and the displacement rod when the length of the conveyor belt is adjusted.

[0009] According to the above technical solution, a limiting device for protecting the safety of the belt is provided on the front side of the stabilizing frame, and an auxiliary device is provided on the front side of the stabilizing frame. The limiting device includes a support plate, a support rod, a support frame, a hollow frame, an inclined panel, a button and a linkage block. The hollow frame moves downward to drive the inclined panel to move downward, and the inclined panel moves downward to contact the inclined groove and limit the button. The support plate is fixedly installed on the front side of the stabilizing frame, the support rod slides through the upper and lower walls of the support plate, the support frame is fixedly installed at both ends of the support rod, the hollow frame is fixedly installed on the left side of the support frame, the inclined panel is fixedly installed on the inner wall of the hollow frame, the button is fixedly installed on the front side of the stabilizing frame, the linkage block is fixedly installed on the right side of the support frame, and the button is electrically connected to the servo motor.

[0010] According to the above technical solution, a No. 3 spring is arranged between the support plate and the support rod, and the No. 3 spring can drive the support rod to reset. The support frame is in contact with the linkage plate, and a bevel groove is provided on the circumferential surface of the button.

[0011] According to the above technical solution, the auxiliary device includes an auxiliary frame, a U-shaped rod, a sealing frame, a sealing plate, a sealing rod, a sealing hole and a conduit. The cross rubber valve is deformed to release the seal of the conduit. After the seal of the conduit is released, the quantitative lubricating oil inside the sealing frame flows through the conduit to the rotation point of the displacement plate and the displacement rod for quantitative lubrication. The auxiliary frame is fixedly installed on the front side of the stabilizing frame, the U-shaped rod slides through the inner and outer walls of the auxiliary frame, the sealing frame is fixedly installed on the bottom of the inner wall of the auxiliary frame, the sealing plate is slidably installed on the inner wall of the sealing frame, the sealing rod is fixedly installed on the front side of the sealing plate, the sealing hole is opened on the surface of the sealing frame, the conduit is fixedly installed on the rear side of the sealing frame, and a cross rubber valve is arranged inside the conduit.

[0012] According to the above technical solution, a No. 4 spring is arranged between the auxiliary frame and the U-shaped rod, one end of the No. 4 spring is arranged on the surface of the U-shaped rod and the other end is arranged on the inner wall of the auxiliary frame. The No. 4 spring can drive the U-shaped rod to reset, and the side of the U-shaped rod close to the support frame is set as an inclined surface, and the U-shaped rod is in contact with the sealing rod.

[0013] According to the above technical solution, a No. 5 spring is arranged between the sealing plate and the sealing frame, and the No. 5 spring can drive the sealing plate to reset. The side of the sealing rod close to the U-shaped rod is set as an inclined surface, and lubricating oil is arranged inside the auxiliary frame.

[0014] A conveying system of an air suspension belt conveyor with adjustable belt length, using the above-mentioned air suspension belt conveyor with adjustable belt length, comprises the following steps:

[0015] Step 1: When the length of the conveyor belt needs to be adjusted, first manually push the L-shaped plate downward, so that the L-shaped plate moves downward to break away from the contact with the load-bearing plate and release the limit on the load-bearing plate;

[0016] Step 2: After the limit of the load-bearing plate is released, manually pull the U-shaped frame to move away from the stabilizing rod. The movement of the U-shaped frame away from the stabilizing rod drives the load-bearing plate to move. The movement of the load-bearing plate squeezes the adjustment spring. The adjustment spring is squeezed by the load-bearing plate to produce deformation and store force.

[0017] Step 3: The movement of the load-bearing plate drives the limit rod to move, and the limit rod moves out of contact with the adjustment hole and releases the limit on the pairing frame. After the limit of the pairing frame is released, the pairing frame is manually pushed to move in the direction close to the stable frame;

[0018] Step 4: The pairing frame moves toward the stable frame to drive the support roller to move, and the movement of the support roller drives the conveyor belt to move for length adjustment.

[0019] The present invention provides an air suspension belt conveyor with adjustable belt length. It has the following beneficial effects:

[0020] (1) In the present invention, when the length of the conveyor belt needs to be adjusted, the L-shaped plate is first manually pushed downward to break away from the contact with the load-bearing plate and release the limit on the load-bearing plate. The L-shaped plate can reduce the looseness and deviation of the conveyor belt, reduce the frequency of equipment failures caused by the instability of the conveyor belt, and thus improve the reliability of the equipment. The supporting roller is driven to move by the matching frame toward the stabilizing frame, and the movement of the supporting roller drives the conveyor belt to move for length adjustment. The adjustable conveyor belt length allows the conveyor to be flexibly adjusted according to different materials and working environments, and can adapt to materials of various sizes and weights, thereby improving the versatility of the equipment. (2) In this invention, the hollow frame moves upward by moving the support frame upward, and the upward movement of the hollow frame causes the inclined plate to move upward to break away from the contact with the inclined groove and release the limit on the button. The button can be pressed manually only after the limit on the button is released. The button is pressed to drive the servo motor to start working. By limiting the button of the servo motor, it can effectively prevent the operator from making mistakes during the adjustment process, thereby reducing the risk of unexpected shutdown or equipment damage, and can prevent the conveyor belt from being disturbed by materials during the adjustment process, thereby ensuring the accuracy of the adjustment and improving the adjustment accuracy. (3) In this invention, the cross rubber valve is deformed to release the seal of the conduit. After the seal of the conduit is released, the quantitative lubricating oil inside the sealing frame flows through the conduit to the rotation of the displacement plate and the displacement rod for quantitative lubrication. The lubrication can significantly reduce the friction of the conveyor belt at the support, thereby reducing energy loss and improving the overall operation efficiency. In addition, the quantitative lubrication can effectively control the amount of lubricating oil used, avoid pollution or waste caused by excessive lubrication, and ensure the durability of the lubrication effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the position structure of the driving roller and the conveyor belt of the present invention;

[0023] Figure 3 For the present invention Figure 2 A schematic diagram of the structure enlargement of part A;

[0024] Figure 4 For the present invention Figure 2 A schematic diagram of the structure of part B in the middle is enlarged;

[0025] Figure 5 This is a schematic diagram of the position structure of the load-bearing plate and the U-shaped frame of the present invention;

[0026] Figure 6 For the present invention Figure 5 The enlarged schematic diagram of the structure of part C in the middle;

[0027] Figure 7 This is a schematic diagram of the internal structure of the auxiliary frame of the present invention;

[0028] Figure 8 It is a schematic diagram of the position structure of the auxiliary frame and the U-shaped rod of the present invention.

[0029] In the figure: 1. stabilizing frame; 2. stabilizing rod; 3. adjusting frame; 4. servo motor; 5. driving roller; 6. matching frame; 7. supporting roller; 8. displacement plate; 9. displacement rod; 10. conveyor belt; 11. load-bearing rod; 12. load-bearing plate; 13. U-shaped frame; 14. adjusting spring; 15. protection frame; 16. L-shaped plate; 17. linkage plate; 18. adjusting hole; 19. limiting rod; 20. air suspension device; 211. supporting plate; 212. supporting rod; 213. supporting frame; 214. hollow frame; 215. inclined panel; 216. button; 217. linkage block; 221. auxiliary frame; 222. U-shaped rod; 223. sealing frame; 224. sealing plate; 225. sealing rod; 226. sealing hole; 227. catheter. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-Figure 6One embodiment of the present invention is: an air suspension belt conveyor with adjustable belt length, comprising a stabilizing frame 1, and also comprising an adjusting device, wherein a stabilizing rod 2 is fixedly installed on the inner wall of the stabilizing frame 1, an adjusting frame 3 is slidably installed on the surface of the stabilizing rod 2, a servo motor 4 is fixedly installed on the front side of the adjusting frame 3, a driving roller 5 is fixedly installed on the output end of the servo motor 4, a matching frame 6 is slidably installed on the surface of the stabilizing rod 2, a supporting roller 7 is rotatably installed on the inner wall of the matching frame 6, a displacement plate 8 is slidably installed on the inner wall of the stabilizing frame 1, a displacement rod 9 is rotatably installed on the rear side of the displacement plate 8, a conveyor belt 10 is arranged on the circumferential surface of the displacement rod 9, and an air suspension device 20 is arranged on the rear side of the stabilizing rod 2, wherein the adjusting device The device includes a load-bearing rod 11, a load-bearing plate 12, a U-shaped frame 13, a protection frame 15, an L-shaped plate 16, an adjustment hole 18 and a limit rod 19. The load-bearing rod 11 is fixedly installed on the front side of the stable frame 1, the load-bearing plate 12 is slidably installed on the circumferential surface of the load-bearing rod 11, the U-shaped frame 13 is fixedly installed on the front side of the load-bearing plate 12, the protection frame 15 is fixedly installed on the front side of the stable frame 1, the L-shaped plate 16 slides through the inner and outer walls of the protection frame 15, the adjustment hole 18 is opened on the front side of the matching frame 6, and the limit rod 19 is fixedly installed on the rear side of the load-bearing plate 12. The L-shaped plate 16 can reduce the looseness and deviation of the conveyor belt 10, reduce the frequency of equipment failures caused by the instability of the conveyor belt 10, and thus improve the reliability of the equipment.

[0032] A linkage plate 17 is fixedly installed on one side of the L-shaped plate 16 close to the stabilizing frame 1. An adjusting spring 14 is arranged between the load-bearing rod 11 and the load-bearing plate 12. The load-bearing plate 12 can be reset by adjusting the spring 14. The limit rod 19 is in contact with the inner wall of the adjusting hole 18. The adjustable length of the conveyor belt 10 allows the conveyor to be flexibly adjusted according to different materials and working environments. It can adapt to materials of various sizes and weights, thereby improving the versatility of the equipment.

[0033] A No. 1 spring is arranged between the displacement plate 8 and the stabilizing frame 1, one end of the No. 1 spring is arranged on the inner wall of the stabilizing frame 1, and the other end is arranged on the surface of the displacement plate 8. The No. 1 spring can drive the displacement plate 8 to reset. A No. 2 spring is arranged between the protection frame 15 and the L-shaped plate 16, one end of the No. 2 spring is arranged on the inner wall of the protection frame 15, and the other end is arranged on the surface of the L-shaped plate 16. The No. 2 spring can drive the L-shaped plate 16 to reset. The L-shaped plate 16 is in contact with the load-bearing plate 12, and the conveyor belt 10 can be supported by the displacement plate 8 and the displacement rod 9 when the length of the conveyor belt 10 is adjusted.

[0034] A conveying system of an air suspension belt conveyor with adjustable belt length, using the above-mentioned air suspension belt conveyor with adjustable belt length, comprises the following steps:

[0035] Step 1: When the length of the conveyor belt 10 needs to be adjusted, first manually push the L-shaped plate 16 downward, and the L-shaped plate 16 moves downward to break away from the contact with the load-bearing plate 12 and release the limit on the load-bearing plate 12;

[0036] Step 2: After the limit of the load-bearing plate 12 is released, the U-shaped frame 13 is manually pulled to move away from the stabilizing rod 2. The movement of the U-shaped frame 13 away from the stabilizing rod 2 drives the load-bearing plate 12 to move. The movement of the load-bearing plate 12 squeezes the adjusting spring 14. The adjusting spring 14 is squeezed by the load-bearing plate 12 to deform and store force.

[0037] Step 3: The load-bearing plate 12 moves to drive the limiting rod 19 to move, and the limiting rod 19 moves out of contact with the adjustment hole 18 and releases the limit on the pairing frame 6. After the limit of the pairing frame 6 is released, the pairing frame 6 is manually pushed to move toward the stabilizing frame 1;

[0038] Step 4: The pairing frame 6 moves toward the stabilizing frame 1 to drive the supporting roller 7 to move, and the movement of the supporting roller 7 drives the conveyor belt 10 to move for length adjustment.

[0039] When the present embodiment is working: when the length of the conveyor belt 10 needs to be adjusted, the L-shaped plate 16 is first manually pushed downward to move, and the L-shaped plate 16 moves downward to squeeze the No. 2 spring, and the No. 2 spring is squeezed by the L-shaped plate 16 to produce deformation and accumulate force, and at the same time, the L-shaped plate 16 moves downward to break away from the contact with the load-bearing plate 12 and release the limit on the load-bearing plate 12. After the limit of the load-bearing plate 12 is released, the U-shaped frame 13 is manually pulled to move in the direction away from the stabilizing rod 2. The U-shaped frame 13 moves in the direction away from the stabilizing rod 2 to drive the load-bearing plate 12 to move, and the load-bearing plate 12 moves to squeeze the adjusting spring 14, and the adjusting spring 14 is squeezed by the load-bearing plate 12 to produce deformation and accumulate force, and at the same time, the load-bearing plate 12 moves to drive the limit rod 19 moves, the limit rod 19 moves out of contact with the adjustment hole 18 and releases the limit on the pairing frame 6. After the limit of the pairing frame 6 is released, the pairing frame 6 is manually pushed to move in the direction close to the stabilizing frame 1. The pairing frame 6 moves in the direction close to the stabilizing frame 1, driving the supporting roller 7 to move. The support roller 7 moves and drives the conveyor belt 10 to move for length adjustment. After the conveyor belt 10 is adjusted to an appropriate length, the U-shaped frame 13 is released so that the load-bearing plate 12 moves in the direction close to the stabilizing rod 2 under the elastic force of the adjusting spring 14. The load-bearing plate 12 moves in the direction close to the stabilizing rod 2 and drives the limit rod 19 to move. The limit rod 19 moves to contact with the adjusting hole 18 and restores the limit on the pairing frame 6 to complete the length adjustment of the conveyor belt 10.

[0040] See also Figure 1-Figure 8On the basis of the above embodiment, in another embodiment of the present invention, a limiting device for protecting the safety of the belt is provided on the front side of the stabilizing frame 1, and an auxiliary device is provided on the front side of the stabilizing frame 1. The limiting device includes a support plate 211, a support rod 212, a support frame 213, a hollow frame 214, an inclined panel 215, a button 216 and a linkage block 217. The support plate 211 is fixedly installed on the front side of the stabilizing frame 1, the support rod 212 slides through the upper and lower walls of the support plate 211, the support frame 213 is fixedly installed at both ends of the support rod 212, the hollow frame 214 is fixedly installed on the left side of the support frame 213, the inclined panel 215 is fixedly installed on the inner wall of the hollow frame 214, the button 216 is fixedly installed on the front side of the stabilizing frame 1, and the linkage block 217 is fixedly installed on the right side of the support frame 213. The button 216 is electrically connected to the servo motor 4. By limiting the button 216 of the servo motor 4, it can effectively prevent the operator from making a wrong operation during the adjustment process, thereby reducing the risk of accidental shutdown or equipment damage.

[0041] A No. 3 spring is arranged between the support plate 211 and the support rod 212 , and the No. 3 spring can drive the support rod 212 to reset. The support frame 213 is in contact with the linkage plate 17 , and a bevel groove is provided on the circumferential surface of the button 216 .

[0042] The auxiliary device includes an auxiliary frame 221, a U-shaped rod 222, a sealing frame 223, a sealing plate 224, a sealing rod 225, a sealing hole 226 and a conduit 227. The auxiliary frame 221 is fixedly installed on the front side of the stabilizing frame 1, the U-shaped rod 222 slides through the inner and outer walls of the auxiliary frame 221, the sealing frame 223 is fixedly installed on the bottom of the inner wall of the auxiliary frame 221, the sealing plate 224 is slidably installed on the inner wall of the sealing frame 223, the sealing rod 225 is fixedly installed on the front side of the sealing plate 224, the sealing hole 226 is opened on the surface of the sealing frame 223, the conduit 227 is fixedly installed on the rear side of the sealing frame 223, and a cross rubber valve is arranged inside the conduit 227. Lubrication can significantly reduce the friction of the conveyor belt 10 at the support, thereby reducing energy loss and improving the overall operating efficiency. In addition, quantitative lubrication can effectively control the amount of lubricating oil used, avoid pollution or waste caused by excessive lubrication, and ensure the durability of the lubrication effect.

[0043] A No. 4 spring is arranged between the auxiliary frame 221 and the U-shaped rod 222. One end of the No. 4 spring is arranged on the surface of the U-shaped rod 222 and the other end is arranged on the inner wall of the auxiliary frame 221. The No. 4 spring can drive the U-shaped rod 222 to reset. The side of the U-shaped rod 222 close to the support frame 213 is set as an inclined surface, and the U-shaped rod 222 is in contact with the sealing rod 225.

[0044] A No. 5 spring is provided between the sealing plate 224 and the sealing frame 223 , and the No. 5 spring can drive the sealing plate 224 to reset. The side of the sealing rod 225 close to the U-shaped rod 222 is set as an inclined surface, and lubricating oil is provided inside the auxiliary frame 221 .

[0045] When the present embodiment is working, the L-shaped plate 16 moves downward to drive the linkage plate 17 to move downward, the linkage plate 17 moves downward to contact the support frame 213 and squeeze the support frame 213, the support frame 213 moves downward under the squeezing of the linkage plate 17, the support frame 213 moves downward to drive the support rod 212 to move downward, the support rod 212 moves downward to pull the No. 3 spring, the No. 3 spring is pulled by the support rod 212 to produce deformation and accumulate force, and at the same time, the support frame 213 moves downward to drive the hollow frame 214 to move downward, the hollow frame 214 moves downward to drive the inclined panel 215 to move downward, the inclined panel 215 moves downward to contact the inclined groove and limit the button 216, and the L-shaped plate 16 is moved downward under the elastic force of the No. 2 spring. When it moves upward to reset under the action, the L-shaped plate 16 moves upward to drive the linkage plate 17 to move upward, and the linkage plate 17 moves upward to break away from the contact with the support frame 213, and the support frame 213 breaks away from the contact with the linkage plate 17, so that the support rod 212 moves upward to reset under the elastic force of the third spring, and the support rod 212 moves upward to reset and drives the support frame 213 to move upward, and the support frame 213 moves upward to move the hollow frame 214 upward, and the hollow frame 214 moves upward to move the inclined plate 215 upward to break away from the contact with the inclined groove and release the limit on the button 216. The button 216 can be pressed manually only after the limit of the button 216 is released. The button 216 is pressed to drive the servo motor 4 to start working.

[0046] The support frame 213 is squeezed by the linkage plate 17 and moves downward. The support frame 213 moves downward and drives the linkage block 217 to move downward. The linkage block 217 moves downward and contacts the U-shaped rod 222 and squeezes the U-shaped rod 222. The U-shaped rod 222 moves in a direction away from the support rod 212 under the squeeze of the linkage block 217. The U-shaped rod 222 moves in a direction away from the support rod 212 and contacts the sealing rod 225 and squeezes the sealing rod 225. The sealing rod 225 moves in a direction close to the conduit 227 under the squeeze of the U-shaped rod 222. The sealing rod 225 moves in a direction close to the conduit 227 and drives the sealing plate 224 to move. The sealing plate 224 moves away from the sealing rod 225. The sealing hole 226 contacts and seals part of the space and lubricating oil inside the sealing frame 223. At the same time, the sealing plate 224 continues to move to squeeze the lubricating oil inside the sealing frame 223. The lubricating oil inside the sealing frame 223 is squeezed by the sealing plate 224 and enters the conduit 227. The lubricating oil entering the conduit 227 squeezes the cross rubber valve. The cross rubber valve is squeezed by the lubricating oil entering the conduit 227 and deforms. The cross rubber valve is deformed to release the seal of the conduit 227. After the seal of the conduit 227 is released, the quantitative lubricating oil inside the sealing frame 223 flows through the conduit 227 to the rotation point of the displacement plate 8 and the displacement rod 9 for quantitative lubrication.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air suspension belt conveyor with adjustable belt length, comprising a stabilizing frame (1), characterized in that: Also includes an adjustment device; The inner wall of the stabilizing frame (1) is fixedly mounted with a stabilizing rod (2), the surface of the stabilizing rod (2) is slidably mounted with an adjusting frame (3), the front side of the adjusting frame (3) is fixedly mounted with a servo motor (4), the output end of the servo motor (4) is fixedly mounted with a driving roller (5), the surface of the stabilizing rod (2) is slidably mounted with a matching frame (6), the inner wall of the matching frame (6) is rotatably mounted with a supporting roller (7), the inner wall of the stabilizing frame (1) is slidably mounted with a displacement plate (8), the rear side of the displacement plate (8) is rotatably mounted with a displacement rod (9), the circumferential surface of the displacement rod (9) is provided with a conveyor belt (10), and the rear side of the stabilizing rod (2) is provided with an air suspension device (20); The adjusting device comprises a load-bearing rod (11), a load-bearing plate (12), a U-shaped frame (13), a protective frame (15), an L-shaped plate (16), an adjusting hole (18) and a limiting rod (19); the load-bearing rod (11) is fixedly mounted on the front side of the stabilizing frame (1); the load-bearing plate (12) is slidably mounted on the circumferential surface of the load-bearing rod (11); the U-shaped frame (13) is fixedly mounted on the front side of the load-bearing plate (12); the protective frame (15) is fixedly mounted on the front side of the stabilizing frame (1); the L-shaped plate (16) slidably penetrates the inner and outer walls of the protective frame (15); the adjusting hole (18) is provided on the front side of the matching frame (6); and the limiting rod (19) is fixedly mounted on the rear side of the load-bearing plate (12); Wherein, a limiting device for protecting the safety of the belt is arranged on the front side of the stabilizing frame (1), and an auxiliary device is arranged on the front side of the stabilizing frame (1); A linkage plate (17) is fixedly mounted on one side of the L-shaped plate (16) close to the stabilizing frame (1), an adjustment spring (14) is arranged between the load-bearing rod (11) and the load-bearing plate (12), and the limit rod (19) is in contact with the inner wall of the adjustment hole (18); A first spring is provided between the displacement plate (8) and the stabilizing frame (1), a second spring is provided between the protection frame (15) and the L-shaped plate (16), and the L-shaped plate (16) is in contact with the load-bearing plate (12); The limiting device comprises a support plate (211), a support rod (212), a support frame (213), a hollow frame (214), an inclined panel (215), a button (216) and a linkage block (217); the support plate (211) is fixedly mounted on the front side of the stabilizing frame (1); the support rod (212) slides through the upper and lower walls of the support plate (211); the support frame (213) is fixedly mounted on both ends of the support rod (212); the hollow frame (214) is fixedly mounted on the left side of the support frame (213); the inclined panel (215) is fixedly mounted on the inner wall of the hollow frame (214); the button (216) is fixedly mounted on the front side of the stabilizing frame (1); the linkage block (217) is fixedly mounted on the right side of the support frame (213); and the button (216) is electrically connected to the servo motor (4); A No. 3 spring is provided between the support plate (211) and the support rod (212); the support frame (213) is in contact with the linkage plate (17); and a bevel groove is provided on the circumferential surface of the button (216); The auxiliary device comprises an auxiliary frame (221), a U-shaped rod (222), a sealing frame (223), a sealing plate (224), a sealing rod (225), a sealing hole (226) and a conduit (227); the auxiliary frame (221) is fixedly mounted on the front side of the stabilizing frame (1); the U-shaped rod (222) slides through the inner and outer walls of the auxiliary frame (221); the sealing frame (223) is fixedly mounted on the bottom of the inner wall of the auxiliary frame (221); the sealing plate (224) is slidably mounted on the inner wall of the sealing frame (223); the sealing rod (225) is fixedly mounted on the front side of the sealing plate (224); the sealing hole (226) is provided on the surface of the sealing frame (223); the conduit (227) is fixedly mounted on the rear side of the sealing frame (223); and a cross rubber valve is provided inside the conduit (227); A No. 4 spring is provided between the auxiliary frame (221) and the U-shaped rod (222); a side of the U-shaped rod (222) close to the support frame (213) is provided as an inclined surface; and the U-shaped rod (222) is in contact with the sealing rod (225); A No. 5 spring is provided between the sealing plate (224) and the sealing frame (223); a side of the sealing rod (225) close to the U-shaped rod (222) is provided as an inclined surface; and lubricating oil is provided inside the auxiliary frame (221).

2. A conveying system of an air suspension belt conveyor with adjustable belt length, using the air suspension belt conveyor with adjustable belt length as claimed in claim 1, characterized in that: The following steps are involved: Step 1: When the length of the conveyor belt (10) needs to be adjusted, the L-shaped plate (16) is first manually pushed downward, and the L-shaped plate (16) moves downward to break away from the contact with the load-bearing plate (12) and release the limit on the load-bearing plate (12); Step 2: After the limit of the load-bearing plate (12) is released, the U-shaped frame (13) is manually pulled to move in a direction away from the stabilizing rod (2). The U-shaped frame (13) moves in a direction away from the stabilizing rod (2), driving the load-bearing plate (12) to move. The movement of the load-bearing plate (12) squeezes the adjustment spring (14). The adjustment spring (14) is squeezed by the load-bearing plate (12) to deform and accumulate force. Step 3: The load-bearing plate (12) moves to drive the limit rod (19) to move, and the limit rod (19) moves out of contact with the adjustment hole (18) and releases the limit on the matching frame (6). After the limit of the matching frame (6) is released, the matching frame (6) is manually pushed to move in a direction close to the stabilizing frame (1); Step 4: The pairing frame (6) moves toward the stabilizing frame (1) to drive the support roller (7) to move, and the movement of the support roller (7) drives the conveyor belt (10) to move for length adjustment.

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