Large heat preservation inner pipe conveying device

Abstract

The utility model relates to the field of conveying equipment, and discloses a large heat preservation inner pipe conveying device which comprises a supporting frame, a plurality of conveying assemblies are arranged on the supporting frame in the length direction, the conveying assemblies are symmetrically arranged in the width direction, and each conveying assembly comprises a conveying shaft, a conveying wheel, a limiting spring and an adjusting sleeve. The conveying shaft penetrates through the conveying wheel and is in sliding connection with the conveying wheel, a transmission spline is fixed to the conveying shaft in the circumferential direction, a key groove matched with the transmission spline is formed in the conveying wheel in the axial direction, the conveying shaft is sleeved with the limiting spring, and the two connecting ends of the limiting spring are fixedly connected with the supporting frame and the conveying wheel respectively. The adjusting sleeve sleeves the end, deviating from the limiting spring, of the conveying shaft and is in threaded connection with the conveying shaft, the end, deviating from the limiting spring, of the conveying wheel abuts against the adjusting sleeve, and the supporting frame is provided with a transmission assembly driving the conveying shaft to rotate. According to the conveying assembly, the effect that the conveying wheels convey the heat preservation inner pipes of different sizes is achieved, and the universality of the conveying assembly is improved conveniently.

Description

Technical Field

[0001] The utility model relates to the field of conveying equipment, in particular to a large-scale heat-insulating inner pipe conveying device. Background Art

[0002] Insulated pipe is the abbreviation of insulated pipe. Insulated pipe includes steel pipe, outer protective pipe installed on the outside of the steel pipe and insulation material installed between the steel pipe and the outer protective pipe. It can be used for the transportation of liquid, gas and other media. It is widely used in thermal insulation projects of pipelines in petroleum, chemical industry, aerospace, central heating, central air conditioning, municipal and other industries.

[0003] With respect to the above-mentioned related technologies, when producing the insulating inner tube, it is necessary to transport the shot-blasted insulating inner tube so that the insulating inner tube can be inserted into the outer protective tube. However, the diameter size of the insulating inner tube varies according to its application scenario. Currently, the transportation device of the insulating inner tube in the processing process has poor versatility and it is difficult to transport insulating inner tubes of different sizes. Utility Model Content

[0004] In order to improve the versatility of the conveying device, the present application provides a large-scale heat-insulating inner tube conveying device.

[0005] The present application provides a large-scale heat-insulating inner tube conveying device, which adopts the following technical solution:

[0006] A large-scale heat-insulating inner tube conveying device comprises a support frame, wherein the support frame is provided with a plurality of conveying components along the length direction, the conveying components are symmetrically arranged along the width direction, the conveying components comprise a conveying shaft, a conveying wheel, a limit spring and an adjusting sleeve, the conveying shaft is rotatably connected to the support frame, the conveying shaft passes through the conveying wheel and is slidably connected to the conveying wheel, the conveying shaft has inherent transmission splines along the circumferential direction, the conveying wheel is provided with a key groove matched with the transmission spline along the axial direction, the limit spring is sleeved on the conveying shaft, the two connecting ends of the limit spring are respectively fixedly connected to the support frame and the conveying wheel, the adjusting sleeve is sleeved on one end of the conveying shaft away from the limit spring, the adjusting sleeve is threadedly connected to the conveying shaft, one end of the conveying wheel away from the limit spring conflicts with the adjusting sleeve, and the support frame is provided with a transmission component for driving the conveying shaft to rotate.

[0007] By adopting the above technical solution, the transmission assembly drives all the conveying shafts to rotate, so that the conveying shafts can drive the corresponding conveying wheels to rotate through the transmission splines, and all the conveying wheels cooperate with each other to achieve the effect of conveying the thermal insulation inner tube. When it is necessary to convey thermal insulation inner tubes of different sizes, the operator can rotate the adjustment sleeve to move the adjustment sleeve in the direction close to the limit spring, and the adjustment sleeve pushes the conveying wheel to move along the axial direction of the conveying shaft, so that the support frame and the conveying wheel cooperate to squeeze the limit spring, causing the limit spring to deform to ensure that the conveying wheel always conflicts with the adjustment sleeve, and achieves the effect of limiting the conveying wheel. The adjustment sleeve pushes the conveying wheel to move to change the distance between two adjacent conveying wheels along the width direction of the bracket, which is conducive to achieving the effect of the conveying wheel conveying thermal insulation inner tubes of different sizes, and is convenient for improving the versatility of the conveying assembly.

[0008] Optionally, the transmission assembly includes a transmission shaft, a plurality of driving bevel gears, a plurality of transmission bevel gears and a driving member for driving the transmission shaft to rotate, the transmission shaft is rotatably connected to the support frame, the driving bevel gears are fixedly connected to the transmission shaft, the driving bevel gears are evenly arranged along the axial direction of the transmission shaft, the transmission bevel gears are respectively fixedly connected to the corresponding conveying shafts, and the transmission bevel gears are respectively meshed with the corresponding driving bevel gears.

[0009] By adopting the above technical solution, the driving member drives the transmission shaft to rotate, and the transmission member then drives all the driving bevel gears to rotate together, and the driving bevel gears drive the transmission bevel gears meshing therewith to rotate, thereby achieving the effect of driving the conveying shaft to rotate together.

[0010] Optionally, the driving component includes a driving motor, a first pulley, a second pulley and a transmission belt, the driving motor is fixedly connected to the support frame, the output shaft of the driving motor is fixedly connected to the first pulley, the second pulley is fixedly connected to the transmission shaft, and the outer circles of the first pulley and the second pulley are both connected to the transmission belt.

[0011] By adopting the above technical solution, the output shaft of the driving motor drives the first pulley to rotate, and the first pulley drives the second pulley to rotate through the transmission belt, so as to realize the effect of driving the transmission shaft to rotate.

[0012] Optionally, the support frame is provided with a connecting frame on one side along the width direction, and a blower is fixedly installed on the connecting frame. The air outlet end of the blower is connected to an air supply pipe, the connecting frame is slidably connected to a support rod, an air supply box is fixedly installed on the upper end of the support rod, and the end of the air supply pipe facing away from the blower is fixedly connected to the air supply box, the air supply box is provided with a spoiler component for spoiling the airflow, and the support rod is fixedly provided with an adjustment component for adjusting the height of the air supply box.

[0013] By adopting the above technical scheme, the height of the air supply box is adjusted by adjusting the component so that the air outlet of the air supply box corresponds to the thermal insulation inner tube, the blower blows the air flow into the air supply pipe, and the air supply pipe then transports the air flow into the air supply box, and the air flow is blown out through the air outlet of the air supply box. The spoiler component adjusts the blowing direction of the air flow so that the air flow fully contacts the thermal insulation inner tube being transported, and impurities attached to the inner and outer surfaces of the thermal insulation inner tube are blown off, which is beneficial to reduce the probability of impurities attached to the thermal insulation inner tube and facilitates improving the cleanliness of the thermal insulation inner tube.

[0014] Optionally, the spoiler assembly includes a driving rack, a first cylinder, a plurality of driving gears and a number of spoiler plates, the spoilers are rotatably connected to the air supply box and are evenly arranged in the air supply box along the length direction of the air supply box, the driving gears are respectively fixed on the rotating shafts of the spoilers, the first cylinder is fixedly connected to the air supply box, the output end of the first cylinder is fixedly connected to the driving rack, and the driving gears are all meshed with the driving rack.

[0015] By adopting the above technical solution, the output shaft of the first cylinder is telescoped to drive the driving rack to reciprocate along the length direction of the air supply box, and the driving rack drives all the driving gears to rotate together, and the driving gears in turn drive the connected spoiler to rotate, so as to achieve the effect of guiding the airflow.

[0016] Optionally, the adjustment component includes a buckle and an adjustment spring, the support rod is provided with a limiting groove, the buckle is slidably connected to the support rod through the limiting groove, the adjustment spring is arranged in the limiting groove, the two connecting ends of the adjustment spring are respectively fixedly connected to the buckle and the support rod, and the connecting frame is evenly provided with slots matching the buckle along the height direction.

[0017] By adopting the above technical solution, a person manually pushes the buckle in the direction close to the support rod, so that the buckle and the support rod cooperate to squeeze the adjusting spring and press the buckle into the limiting groove. The person manually pulls the support rod along the height direction of the connecting frame to adjust the air supply box to an appropriate height, so that the buckle corresponds to the slot of the corresponding height, and the adjusting spring rebounds to push the buckle into the slot, so that the buckle and the slot cooperate to limit the support rod, thereby achieving the effect of adjusting the height of the air supply box.

[0018] Optionally, the support frame is fixedly provided with a dust shield.

[0019] By adopting the above technical solution, the dust shield is helpful to reduce the probability of the driving bevel gear and the transmission bevel gear coming into contact with impurities, thereby reducing the probability of the transmission bevel gear and the driving bevel gear getting stuck.

[0020] Optionally, the conveying wheel is fixedly provided with a rubber layer along the circumference, and the rubber layer is provided with an anti-skid groove.

[0021] By adopting the above technical scheme, the rubber layer and the anti-skid groove can increase the roughness of the contact surface between the conveying wheel and the insulation inner tube, thereby improving the friction between the insulation inner tube and the rubber layer, which is beneficial to reduce the probability of slipping between the insulation inner tube and the conveying wheel, and facilitates ensuring the conveying effect of the conveying wheel on the insulation inner tube.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The transmission assembly drives all the conveying shafts to rotate, so that the conveying shafts can drive the corresponding conveying wheels to rotate through the transmission splines, and all the conveying wheels cooperate with each other to achieve the effect of conveying the thermal insulation inner tube. When it is necessary to convey thermal insulation inner tubes of different sizes, the operator can rotate the adjusting sleeve to move the adjusting sleeve in the direction close to the limit spring. The adjusting sleeve pushes the conveying wheel to move along the axial direction of the conveying shaft, so that the support frame and the conveying wheel cooperate to squeeze the limit spring, causing the limit spring to deform to ensure that the conveying wheel always conflicts with the adjusting sleeve, thereby achieving the effect of limiting the conveying wheel. The adjusting sleeve pushes the conveying wheel to move to change the distance between two adjacent conveying wheels along the width direction of the bracket, which is conducive to achieving the effect of the conveying wheel conveying thermal insulation inner tubes of different sizes, and is convenient for improving the versatility of the conveying assembly;

[0024] 2. The height of the air supply box is adjusted by adjusting the assembly so that the air outlet of the air supply box corresponds to the thermal insulation inner tube. The blower blows the airflow into the air supply pipe, and the air supply pipe then transports the airflow into the air supply box. The airflow is blown out through the air outlet of the air supply box. The spoiler assembly adjusts the blowing direction of the airflow so that the airflow fully contacts the thermal insulation inner tube being transported, and the impurities attached to the inner and outer surfaces of the thermal insulation inner tube are blown off, which is conducive to reducing the probability of impurities attached to the thermal insulation inner tube and facilitating the improvement of the cleanliness of the thermal insulation inner tube. The outer surface of the thermal insulation inner tube is clean and tidy, which is conducive to the subsequent contact with the thermal insulation layer and ensures the adhesion effect.

[0025] 3. The output shaft of the first cylinder is extended and retracted to drive the drive rack to reciprocate along the length direction of the air box. The drive rack drives all the drive gears to rotate together, and the drive gears in turn drive the connected spoiler to rotate, so as to achieve the effect of guiding the airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of a large-scale heat-insulating inner tube conveying device.

[0027] Figure 2 Schematic diagram to highlight the position of the limit spring and the adjusting sleeve.

[0028] Figure 3 Schematic diagram to highlight the position of the transmission shaft and drive bevel gear.

[0029] Figure 4 A schematic diagram to highlight the position of the buckle and adjustment spring.

[0030] Explanation of the accompanying drawings: 1. support frame; 2. conveying assembly; 3. transmission assembly; 4. connecting frame; 5. spoiler assembly; 6. adjustment assembly; 11. dust shield; 21. conveying shaft; 22. conveying wheel; 23. limit spring; 24. adjustment sleeve; 25. transmission spline; 26. keyway; 31. transmission shaft; 32. driving bevel gear; 33. driving bevel gear; 34. driving member; 41. blower; 42. air supply pipe; 43. support rod; 44. air supply box; 51. driving rack; 52. first cylinder; 53. driving gear; 54. spoiler; 61. buckle; 62. adjustment spring; 63. limit groove; 64. groove; 221. rubber layer; 222. anti-skid groove; 341. driving motor; 342. first pulley; 343. second pulley; 344. transmission belt. DETAILED DESCRIPTION

[0031] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0032] The embodiment of the present application discloses a large-scale heat-insulating inner tube conveying device.

[0033] Reference Figure 1 and Figure 2 A large-scale heat-insulating inner tube conveying device includes two support frames 1, which are arranged in parallel. The support frames 1 are provided with a plurality of conveying components 2 along the length direction. The conveying components 2 are symmetrically arranged along the width direction. The conveying components 2 include a conveying shaft 21, which is rotatably connected to the support frames 1, and a transmission component 3 for driving the conveying shaft 21 to rotate is provided between the two support frames 1.

[0034] Reference Figure 2 and Figure 3 The transmission assembly 3 includes a transmission shaft 31 and a driving member 34. The transmission shaft 31 is rotatably connected to the support frame 1. The driving member 34 includes a driving motor 341, a first pulley 342, a second pulley 343 and a transmission belt 344. The driving motor 341 is fixedly connected to the support frame 1. When the heat-insulating inner tube needs to be transported, the driving motor 341 is powered on, and the output shaft of the driving motor 341 is fixedly connected to the first pulley 342, and the output shaft of the driving motor 341 drives the first pulley 342 to rotate.

[0035] Reference Figure 2 and Figure 3, the second pulley 343 is fixedly connected to the transmission shaft 31, and the outer circles of the first pulley 342 and the second pulley 343 are connected to the transmission belt 344. The first pulley 342 drives the second pulley 343 to rotate through the transmission belt 344, which can achieve the effect of driving the transmission shaft 31 to rotate. The transmission assembly 3 also includes a plurality of driving bevel gears 32 and a plurality of transmission bevel gears 33. The driving bevel gears 32 are all fixedly connected to the transmission shaft 31. The driving bevel gears 32 are evenly arranged along the axial direction of the transmission shaft 31. When the transmission shaft 31 rotates, all the driving bevel gears 32 are driven to rotate together.

[0036] Reference Figure 2 and Figure 3 The transmission bevel gears 33 are respectively fixedly connected to the corresponding conveying shafts 21, and the transmission bevel gears 33 are respectively meshed with the corresponding driving bevel gears 32. The driving bevel gears 32 drive the transmission bevel gears 33 meshed with it to rotate, thereby achieving the effect of driving the conveying shafts 21 to rotate together, and it is more convenient to drive all the conveying shafts 21 to rotate synchronously.

[0037] Reference Figure 2 and Figure 3 The conveying assembly 2 further includes a conveying wheel 22, a conveying shaft 21 passes through the conveying wheel 22 and is slidably connected to the conveying wheel 22, the conveying shaft 21 has a transmission spline 25 along the circumferential direction, and the conveying wheel 22 has a keyway 26 adapted to the transmission spline 25 along the axial direction. When the conveying shaft 21 rotates synchronously, the conveying shaft 21 can drive the corresponding conveying wheel 22 to rotate through the transmission spline 25, and all the conveying wheels 22 cooperate with each other to achieve the effect of conveying the heat-insulating inner tube.

[0038] Reference Figure 2 and Figure 3 The conveying wheel 22 is fixedly provided with a rubber layer 221 along the circumferential direction, and the rubber layer 221 is provided with an anti-skid groove 222. The rubber layer 221 and the anti-skid groove 222 can increase the roughness of the contact surface between the conveying wheel 22 and the insulation inner tube, thereby increasing the friction between the insulation inner tube and the rubber layer 221, and reducing the probability of slipping between the insulation inner tube and the conveying wheel 22, so as to ensure the conveying effect of the conveying wheel 22 on the insulation inner tube.

[0039] Reference Figure 2 and Figure 3 The conveying assembly 2 also includes a limit spring 23 and an adjusting sleeve 24. The limit spring 23 is sleeved on the conveying shaft 21. The two connecting ends of the limit spring 23 are respectively fixedly connected to the support frame 1 and the conveying wheel 22. The adjusting sleeve 24 is sleeved on the end of the conveying shaft 21 away from the limit spring 23. The adjusting sleeve 24 is threadedly connected to the conveying shaft 21, and the end of the conveying wheel 22 away from the limit spring 23 conflicts with the adjusting sleeve 24.

[0040] Reference Figure 2 and Figure 3When the conveying wheel 22 transports the insulation inner tube, the adjusting sleeve 24 pushes the conveying wheel 22, so that the support frame 1 and the conveying wheel 22 cooperate to squeeze the limit spring 23, causing the limit spring 23 to deform, so as to ensure that the conveying wheel 22 always conflicts with the adjusting sleeve 24, thereby achieving the effect of limiting the conveying wheel 22.

[0041] Reference Figure 2 and Figure 3 When it is necessary to transport thermal insulation inner tubes of different sizes, the operator can rotate the adjusting sleeve 24 to move the adjusting sleeve 24 in the direction close to the limit spring 23. The adjusting sleeve 24 pushes the conveying wheel 22 to move axially along the conveying shaft 21, and the limit spring 23 is deformed to ensure that the conveying wheel 22 always conflicts with the adjusting sleeve 24. By changing the distance between two adjacent conveying wheels 22 along the width direction of the bracket, the conveying wheel 22 can transport thermal insulation inner tubes of different sizes, thereby improving the versatility of the conveying assembly 2.

[0042] Reference Figure 2 and Figure 4 The connecting frame 4 is slidably connected with a support rod 43, an air supply box 44 is fixedly provided at the upper end of the support rod 43, the support rod 43 is provided with an adjustment component 6, the adjustment component 6 includes a buckle 61 and an adjustment spring 62, the support rod 43 is provided with a limiting groove 63, the buckle 61 is slidably connected to the support rod 43 through the limiting groove 63, the adjustment spring 62 is arranged in the limiting groove 63, and the two connecting ends of the adjustment spring 62 are fixedly connected to the buckle 61 and the support rod 43 respectively.

[0043] Reference Figure 2 and Figure 4 , the buckle 61 is manually pushed toward the direction close to the support rod 43, so that the buckle 61 and the support rod 43 cooperate to squeeze the adjustment spring 62, and the buckle 61 is pressed into the limiting groove 63, and the support rod 43 is manually pulled along the height direction of the connecting frame 4 to adjust the air supply box 44 to a suitable height. The support frame 1 is evenly provided with a slot 64 adapted to the buckle 61 along the height direction, so that the buckle 61 corresponds to the slot 64 of the corresponding height, and the adjustment spring 62 rebounds and pushes the buckle 61 into the slot 64, so that the buckle 61 cooperates with the slot 64 to limit the support rod 43, and then the air supply box 44 corresponds to the insulation inner tube, so as to achieve the effect of adjusting the height of the air supply box 44.

[0044] Reference Figure 2 and Figure 4 The support frame 1 is fixedly provided with a blower 41, and the air outlet end of the blower 41 is connected to an air supply pipe 42. The blower 41 blows the air flow into the air supply pipe 42. The end of the air supply pipe 42 facing away from the blower 41 is fixedly connected to an air supply box 44, and the air supply pipe 42 transports the air flow into the air supply box 44.

[0045] Reference Figure 2and Figure 4 The air supply box 44 is provided with a spoiler assembly 5, which includes a driving rack 51, a first cylinder 52, a plurality of driving gears 53 and a number of spoiler plates 54. The first cylinder 52 is fixedly connected to the air supply box 44, and the output end of the first cylinder 52 is fixedly connected to the driving rack 51. The output shaft of the first cylinder 52 is retracted to drive the driving rack 51 to reciprocate along the length direction of the air supply box 44.

[0046] Reference Figure 2 and Figure 4 The spoilers 54 are all rotatably connected to the air supply box 44 and are evenly arranged in the air supply box 44 along the length direction of the air supply box 44. The driving gears 53 are respectively fixed on the rotating shafts of the spoilers 54, and the driving gears 53 are all meshed with the driving racks 51. The driving racks 51 drive all the driving gears 53 to rotate together, and the driving gears 53 further drive the connected spoilers 54 to rotate.

[0047] Reference Figure 2 and Figure 4 The spoiler 54 adjusts the blowing direction of the airflow so that the airflow can fully contact the insulation inner tube being transported, and blow off the impurities attached to the inner and outer surfaces of the insulation inner tube, which can reduce the probability of impurities attached to the insulation inner tube and improve the cleanliness of the insulation inner tube. In addition, the clean outer surface of the insulation inner tube is conducive to subsequent contact with the insulation layer, ensuring the adhesion effect. The support frame 1 is fixed with a dust shield 11 (refer to Figure 1 ), dust shield 11 (refer to Figure 1 ) can reduce the probability of the driving bevel gear 32 and the transmission bevel gear 33 contacting with impurities, thereby reducing the probability of the transmission bevel gear 33 and the driving bevel gear 32 getting stuck.

[0048] The implementation principle of a large-scale heat-insulating inner tube conveying device in the embodiment of the present application is as follows: when the heat-insulating inner tube needs to be transported, the output shaft of the driving motor 341 drives the first pulley 342 to rotate. The first pulley 342 drives the second pulley 343 to rotate through the transmission belt 344, which can achieve the effect of driving the transmission shaft 31 to rotate. When the transmission shaft 31 rotates, it drives all the driving bevel gears 32 to rotate together. The driving bevel gear 32 drives the transmission bevel gear 33 meshing with it to rotate, which achieves the effect of driving the conveying shaft 21 to rotate together. The conveying shaft 21 can drive the corresponding conveying wheel 22 to rotate through the transmission spline 25, and all the conveying wheels 22 cooperate with each other to achieve the effect of conveying the heat-insulating inner tube. When it is necessary to transport insulation inner tubes of different sizes, the operator can rotate the adjusting sleeve 24 to move the adjusting sleeve 24 in the direction close to the limit spring 23. The adjusting sleeve 24 pushes the conveying wheel 22 to move axially along the conveying shaft 21, and the limit spring 23 is deformed to ensure that the conveying wheel 22 always conflicts with the adjusting sleeve 24. By changing the distance between two adjacent conveying wheels 22 along the width direction of the bracket, the conveying wheel 22 can transport insulation inner tubes of different sizes, thereby improving the versatility of the conveying assembly 2.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A large-scale heat-insulating inner tube conveying device, comprising a support frame (1), characterized in that: The support frame (1) is provided with a plurality of conveying assemblies (2) along the length direction. The conveying assemblies (2) are symmetrically arranged along the width direction. The conveying assemblies (2) comprise a conveying shaft (21), a conveying wheel (22), a limit spring (23) and an adjusting sleeve (24). The conveying shaft (21) is rotatably connected to the support frame (1). The conveying shaft (21) passes through the conveying wheel (22) and is slidably connected to the conveying wheel (22). The conveying shaft (21) has a transmission spline (25) along the circumferential direction. The conveying wheel (22) is provided with a transmission spline (25) along the axial direction. The conveying shaft (21) is provided with a key groove (26), a limit spring (23) is sleeved on the conveying shaft (21), two connecting ends of the limit spring (23) are respectively fixedly connected to the support frame (1) and the conveying wheel (22), an adjusting sleeve (24) is sleeved on one end of the conveying shaft (21) away from the limit spring (23), the adjusting sleeve (24) is threadedly connected to the conveying shaft (21), one end of the conveying wheel (22) away from the limit spring (23) is in conflict with the adjusting sleeve (24), and the support frame (1) is provided with a transmission assembly (3) for driving the conveying shaft (21) to rotate.

2. A large-scale heat-insulating inner tube conveying device according to claim 1, characterized in that: The transmission assembly (3) comprises a transmission shaft (31), a plurality of driving bevel gears (32), a plurality of driving bevel gears (33) and a driving member (34) for driving the transmission shaft (31) to rotate; the transmission shaft (31) is rotationally connected to the support frame (1); the driving bevel gears (32) are all fixedly connected to the transmission shaft (31); the driving bevel gears (32) are evenly arranged along the axial direction of the transmission shaft (31); the driving bevel gears (33) are respectively fixedly connected to the corresponding conveying shafts (21); and the driving bevel gears (33) are respectively meshed with the corresponding driving bevel gears (32).

3. A large-scale heat-insulating inner tube conveying device according to claim 2, characterized in that: The transmission assembly (3) comprises a driving motor (341), a first pulley (342), a second pulley (343) and a transmission belt (344); the driving motor (341) is fixedly connected to the support frame (1); the output shaft of the driving motor (341) is fixedly connected to the first pulley (342); the second pulley (343) is fixedly connected to the transmission shaft (31); and the outer circles of the first pulley (342) and the second pulley (343) are both connected to the transmission belt (344).

4. A large-scale heat-insulating inner tube conveying device according to claim 1, characterized in that: A connecting frame (4) is provided on one side of the support frame (1) along the width direction, a blower (41) is fixedly provided on the connecting frame (4), an air outlet end of the blower (41) is connected to an air supply pipe (42), the connecting frame (4) is slidably connected to a support rod (43), an air supply box (44) is fixedly provided on the upper end of the support rod (43), an end of the air supply pipe (42) facing away from the blower (41) is fixedly connected to the air supply box (44), the air supply box (44) is provided with a flow disturbance component (5) for disturbing the air flow, and the support rod (43) is fixedly provided with an adjustment component (6) for adjusting the height of the air supply box (44).

5. A large-scale heat-insulating inner tube conveying device according to claim 4, characterized in that: The spoiler assembly (5) comprises a driving rack (51), a first cylinder (52), a plurality of driving gears (53) and a plurality of spoiler plates (54); the spoiler plates (54) are all rotatably connected to the air supply box (44) and are evenly arranged in the air supply box (44) along the length direction of the air supply box (44); the driving gears (53) are respectively fixed on the rotating shafts of the spoiler plates (54); the first cylinder (52) is fixedly connected to the air supply box (44); the output end of the first cylinder (52) is fixedly connected to the driving rack (51); and the driving gears (53) are all meshed with the driving rack (51).

6. A large-scale heat-insulating inner tube conveying device according to claim 4, characterized in that: The adjustment assembly (6) comprises a buckle (61) and an adjustment spring (62); the support rod (43) is provided with a limiting groove (63); the buckle (61) is slidably connected to the support rod (43) through the limiting groove (63); the adjustment spring (62) is arranged in the limiting groove (63); two connecting ends of the adjustment spring (62) are respectively fixedly connected to the buckle (61) and the support rod (43); and the support frame (1) is evenly provided with slots (64) adapted to the buckle (61) along the height direction.

7. A large-scale heat-insulating inner tube conveying device according to claim 1, characterized in that: The support frame (1) is fixedly provided with a dust shield (11).

8. A large-scale heat-insulating inner tube conveying device according to claim 1, characterized in that: The conveying wheel (22) is fixedly provided with a rubber layer (221) along the circumferential direction, and the rubber layer (221) is provided with an anti-skid groove (222).

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