A dual axis rotating pipe rehabilitation drum suitable for long pipeline rehabilitation

Abstract

The application discloses a double-shaft rotary pipeline repairing drum suitable for long pipeline repairing, which comprises a drum body, an opening is arranged in the middle of one end of the drum body, an outlet turnover assembly is detachably arranged on the opening, an inner lining hose winding assembly is horizontally fixedly arranged in the inside of the drum body, a power assembly is sealingly and fixedly arranged outside the drum body and connected with the inner lining hose winding assembly, and a steam assembly is fixedly arranged on the side wall of the drum body; the inner lining hose winding assembly comprises a main rotating shaft, a first belt pulley and a second belt pulley which are connected through a transmission belt, an inner lining hose is fixedly arranged on the transmission belt, and the main rotating shaft is connected with the power assembly. After the double-shaft rotary pipeline repairing drum is adopted, the cross section of the drum body is designed as an ellipse, and the inner lining hose winding assembly is designed in the drum body, compared with the single-shaft rotary pipeline repairing drum, the double-shaft rotary pipeline repairing drum can accommodate much longer inner lining hose for repairing, so that the pipeline with a repairable length of more than 150 meters can be repaired.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline repair, in particular to a double-shaft rotary pipeline repair drum suitable for long pipeline repair. BACKGROUND

[0002] More and more urban underground gas and water transmission pipelines are in aging state and need to be repaired. In order to shorten the pipeline repair time, reduce the labor intensity and the repair cost, the pipeline trenchless repair technology has been greatly developed. The pipeline repair drum as a key equipment for the pipeline trenchless repair technology has also been deeply researched and developed. The pipeline repair drums used in the industry at present all adopt single-shaft rotation. Due to the limitation of highway transportation height, the diameter of the repair drum is limited. The length of the repair inner hose collected is relatively short, generally not more than 150 meters. The length of the pipeline that can be repaired is not more than 150 meters. There are many urban underground gas and water transmission pipelines that need to be repaired and the length of which is more than 150 meters. The traditional pipeline repair drum cannot meet the requirements. SUMMARY

[0003] The present application aims at overcoming the deficiencies of the prior art and providing a double-shaft rotary pipeline repair drum suitable for long pipeline repair.

[0004] The purpose of the present application is achieved by the following technical solutions.

[0005] The double-shaft rotary pipeline repair drum suitable for long pipeline repair comprises a drum body, a steam assembly, a power assembly, an inner hose winding assembly and an outlet turnover assembly. An opening is arranged in the middle of one end of the drum body. The outlet turnover assembly is detachably arranged on the opening. The inner hose winding assembly is horizontally fixedly arranged in the inside of the drum body and cooperates with the opening. The power assembly is sealingly and fixedly arranged outside the drum body and connected with the inner hose winding assembly. The steam assembly is fixedly arranged on the side wall of the drum body.

[0006] The inner liner hose winding assembly comprises a main rotating shaft, a secondary rotating shaft, a first pulley, a second pulley, a transmission belt, a first fixing seat, a second fixing seat, a sliding seat and an adjusting rod, the first pulley is fixedly arranged on the main rotating shaft, the second pulley is fixedly arranged on the secondary rotating shaft, the first pulley and the second pulley are connected through the transmission belt, the inner liner hose is fixedly arranged on the transmission belt, the main rotating shaft and the secondary rotating shaft are arranged in parallel and horizontally, the two ends of the main rotating shaft are fixedly arranged on the sidewall of the drum body through the first fixing seat respectively, the main rotating shaft is connected with the power assembly, the two ends of the secondary rotating shaft are rotatably arranged on the sliding seat respectively, the sliding seat is arranged on the second fixing seat through the adjusting rod, and the second fixing seat is fixedly arranged on the sidewall of the drum body, and a tensioning component is arranged between the main rotating shaft and the secondary rotating shaft, the tensioning component is arranged in the transmission belt, and the transmission belt is matched with the opening.

[0007] Further, the steam assembly comprises a steam joint, a safety valve, a blowdown valve and a monitoring assembly, the steam joint, the monitoring assembly and the safety valve are sealingly arranged on the top of the drum body, and the blowdown valve is sealingly and fixedly arranged on the bottom of the drum body.

[0008] Further, the monitoring assembly comprises a barometer and a thermometer, and the barometer and the thermometer are sealingly and fixedly arranged on the top of the drum body.

[0009] Further, the power assembly comprises a driving member, a hard tooth surface cylindrical gear reducer, a main transmission wheel, a secondary transmission wheel and a transmission chain, the secondary transmission wheel is fixedly arranged on the end of the main rotating shaft, the main transmission wheel and the secondary transmission wheel are connected through the transmission chain, the main transmission wheel is arranged on the output shaft of the hard tooth surface cylindrical gear reducer, the input end of the hard tooth surface cylindrical gear reducer is connected with the output shaft of the driving member, and the main transmission wheel, the secondary transmission wheel and the transmission chain are arranged in a protective cover.

[0010] Further, an observation mirror is arranged on the upper end of the drum body, and the observation mirror is arranged opposite to the opening.

[0011] Further, the outlet turnover assembly comprises a turnover short section, a rotating shaft, a hydraulic cylinder and a hydraulic station, the turnover short section is detachably arranged on the opening and matched with the opening, symmetrical fixing is arranged on the two sides of the turnover short section, and the rotating shaft is arranged opposite to the hydraulic cylinder, the rotating shaft is rotatably connected with the output shaft of the hydraulic cylinder, the cylinder body of the hydraulic cylinder is hingedly connected with the drum body, and the hydraulic cylinder is controlled by the hydraulic station.

[0012] Further, the tensioning component comprises a tensioning base, a limiting block, a supporting cylinder, a tensioning shaft and a tensioning wheel, the tensioning wheel is fixedly arranged on the tensioning shaft, the tensioning shaft is arranged in the transmission belt and parallel to the main rotating shaft, both ends of the tensioning shaft are arranged in vertical sliding grooves, the sliding grooves are arranged on the limiting block, the limiting block is fixedly arranged on the tensioning base, the tensioning base is fixedly arranged on the inner wall of the drum body, the supporting cylinder is fixedly arranged in the sliding groove, the fixed part of the supporting cylinder is fixedly arranged on the tensioning base, and the output part of the supporting cylinder is abutted on the tensioning shaft.

[0013] Further, the cross section of the drum body is in an elliptical shape, the axis of the main rotating shaft and the axis of the auxiliary rotating shaft are in the same plane as the axis of the drum body, and the axis of the main rotating shaft is perpendicular to the axis of the drum body.

[0014] Further, the second fixing seat is provided with a sliding hole, the lower end of the sliding seat is slidingly arranged in the sliding hole, and the adjusting rod is threadedly connected with the sliding seat.

[0015] Further, the turnover section pipe comprises a connecting pipe, a first flange and a second flange, the connecting pipe is in a cylindrical shape, one end of the connecting pipe is sealingly connected with the first flange, the other end of the connecting pipe is sealingly connected with the second flange, the axis of the first flange is parallel to the axis of the connecting pipe, and the included angle between the axis of the connecting pipe and the axis of the second flange is θ, and 0°≤θ≤60°.

[0016] The beneficial effects of the present application are:

[0017] 1) After the drum is repaired by the double-shaft rotating pipe repair drum, the cross section of the drum body is designed to be in an elliptical shape, and the inner lining hose winding assembly is designed in the drum body, compared with the shaft rotating pipe repair drum, the double-shaft rotating pipe repair drum can accommodate much longer repair inner lining hose, so that the repairable length of the pipe is greater than 150 meters.

[0018] 2) In the technical scheme, the transmission belt is conveniently tensioned through the combination of the sliding seat and the adjusting rod, so that the inner lining hose is smoothly wound and unwound in the transmission belt, and then the tensioning component is arranged to further wind and unwind the transmission belt, so as to prevent the transmission belt from failing during work.

[0019] 3) In the technical scheme, the outlet turnover assembly is arranged to conveniently lower the inner lining hose and also to conveniently heat the inner lining hose BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a perspective view of the double-shaft rotating pipe repair drum.

[0021] Figure 2It is the side view structure diagram of the double shaft rotary pipeline repair drum;

[0022] Figure 3 It is the main view structure diagram of the double shaft rotary pipeline repair drum;

[0023] Figure 4 It is the A-A section structure of Figure 3 ;

[0024] Figure 5 It is the perspective structure diagram of the inner lining hose winding assembly;

[0025] Figure 6 It is the enlarged structure diagram of B of Figure 5 ;

[0026] Figure 7 It is the section connection structure diagram of the turnover nipple;

[0027] In the figure, 1 is the drum body, 2 is the opening, 3 is the main rotating shaft, 4 is the auxiliary rotating shaft, 5 is the first pulley, 6 is the second pulley, 7 is the transmission belt, 8 is the first fixed seat, 9 is the second fixed seat, 10 is the sliding seat, 11 is the adjusting rod, 12 is the steam joint, 13 is the safety valve, 14 is the blowdown valve, 15 is the air pressure gauge, 16 is the thermometer, 17 is the driving part, 18 is the hard tooth surface cylindrical gear reducer, 19 is the main transmission wheel, 20 is the auxiliary transmission wheel, 21 is the transmission chain, 22 is the guard, 23 is the sight glass, 24 is the rotating shaft, 25 is the hydraulic cylinder, 26 is the hydraulic station, 27 is the tensioning base, 28 is the limiting block, 29 is the supporting cylinder body, 30 is the tensioning shaft, 31 is the tensioning wheel, 32 is the sliding groove, 33 is the sliding hole, 34 is the connecting pipe, 35 is the first flange, and 36 is the second flange. DETAILED DESCRIPTION

[0028] The technical solutions of the present application will be described clearly and completely below in combination with embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0029] Referring to Figures 1-7 , the present application provides a technical solution:

[0030] The application discloses a double-shaft rotary pipeline repairing drum suitable for long pipeline repairing, which comprises a drum body 1, a steam assembly, a power assembly, an inner lining hose winding assembly and an outlet turnover assembly, an opening 2 is arranged in the middle of one end of the drum body 1, the outlet turnover assembly is detachably arranged on the opening 2, the inner lining hose winding assembly is horizontally fixedly arranged in the inner portion of the drum body 1 and matched with the opening 2, the power assembly is sealingly and fixedly arranged on the outer portion of the drum body 1 and connected with the inner lining hose winding assembly, and the steam assembly is fixedly arranged on the side wall of the drum body 1. The cross section of the drum body 1 is in an oval shape, the axis center lines of the main rotating shaft 3 and the auxiliary rotating shaft 4 are located in the same plane with the axis center line of the drum body 1, and the axis center line of the main rotating shaft 3 is perpendicular to the axis center line of the drum body 1. The steam assembly, the power assembly, the inner lining hose winding assembly and the outlet turnover assembly are all mounted on the drum body 1, the inner lining hose is wound on the inner lining hose winding assembly in the drum body 1 in the transportation process, steam is introduced into the drum body 1 through the steam assembly in the installation process, so that the drum body 1 has a certain temperature and pressure, and thus the inner lining hose is fixed on the inner wall of the pipeline to be repaired. The power assembly is used for driving the inner lining hose winding assembly to work, and the outlet turnover assembly is used for facilitating the quick installation of the inner lining hose after the inner lining hose is discharged from the drum body 1. The opening 2 is arranged in the middle of one end of the drum body 1.

[0031] The inner lining hose winding assembly comprises a main rotating shaft 3, a secondary rotating shaft 4, a first belt pulley 5, a second belt pulley 6, a transmission belt 7, a first fixing base 8, a second fixing base 9, a sliding base 10 and an adjusting rod 11, the first belt pulley 5 is fixedly arranged on the main rotating shaft 3, the second belt pulley 6 is fixedly arranged on the secondary rotating shaft 4, the first belt pulley 5 and the second belt pulley 6 are connected through the transmission belt 7, the inner lining hose is fixedly arranged on the transmission belt 7, the main rotating shaft 3 and the secondary rotating shaft 4 are arranged in parallel and horizontally, the two ends of the main rotating shaft 3 are fixedly arranged on the sidewall of the drum body 1 through the first fixing base 8, the main rotating shaft 3 is connected with a power assembly, the two ends of the secondary rotating shaft 4 are rotatably arranged on the sliding base 10, the sliding base 10 is arranged on the second fixing base 9 through the adjusting rod 11, the second fixing base 9 is fixedly arranged on the sidewall of the drum body 1, a tensioning component is arranged between the main rotating shaft 3 and the secondary rotating shaft 4, the tensioning component is arranged in the transmission belt 7, and the transmission belt 7 is matched with the opening 2. A sliding hole 33 is arranged on the second fixing base 9, the lower end of the sliding base 10 is slidably arranged in the sliding hole 33, and the adjusting rod 11 is threadedly connected with the sliding base 10. The power assembly transmits power to the main rotating shaft 3, the main rotating shaft 3 drives the secondary rotating shaft 4 to rotate through the transmission belt 7, the first belt pulley 5 and the second belt pulley 6 are synchronous belt pulleys, so that the transmission belt 7 is prevented from sliding during transmission, bearings are arranged at the two ends of the main rotating shaft 3 and the secondary rotating shaft 4, the first fixing base 8 is used for mounting the main rotating shaft 3, the second fixing base 9 is used for mounting the secondary rotating shaft 4 through the sliding base 10 and the adjusting rod 11, the sliding base 10 can slide in the sliding hole 33, and the tightness of the transmission belt 7 is effectively adjusted through the combination of the sliding hole 33 and the sliding base 10. During the winding / unwinding process of the inner lining hose, one end of the inner lining hose is fixed on the transmission belt 7.

[0032] In some embodiments, the steam assembly comprises a steam joint 12, a safety valve 13, a blowdown valve 14 and a monitoring assembly, the steam joint 12, the monitoring assembly and the safety valve 13 are sealingly arranged at the top of the drum body 1, and the blowdown valve 14 is sealingly and fixedly arranged at the bottom of the drum body 1. The monitoring assembly comprises a pressure gauge 15 and a thermometer 16, and the pressure gauge 15 and the thermometer 16 are sealingly and fixedly arranged at the top of the drum body 1. The steam joint 12 is connected with an external steam device through a pipeline, steam is introduced into the drum body 1 through the steam joint 12, so that the temperature in the drum body 1 is increased, and the pressure in the drum body 1 is also increased, so that the inner lining hose can be heated and solidified. The safety valve 13 and the blowdown valve 14 are both prior art, the safety valve 13 is opened when the steam pressure is too large, and the blowdown valve 14 can discharge the accumulated water in the drum body 1. The pressure gauge 15 and the thermometer 16 are both prior art, the pressure gauge 15 measures the pressure in the drum body 1, and the thermometer 16 measures the temperature in the drum body 1.

[0033] In some embodiments, the power assembly comprises a driving member 17, a hard tooth surface cylindrical gear reducer 18, a main transmission wheel 19, a secondary transmission wheel 20, and a transmission chain 21. The secondary transmission wheel 20 is fixedly arranged at the end of the main shaft 3. The main transmission wheel 19 and the secondary transmission wheel 20 are connected through the transmission chain 21. The main transmission wheel 19 is arranged on the output shaft of the hard tooth surface cylindrical gear reducer 18. The input end of the hard tooth surface cylindrical gear reducer 18 is connected with the output shaft of the driving member 17. The main transmission wheel 19, the secondary transmission wheel 20, and the transmission chain 21 are arranged in the shroud 22. In the process of storing or discharging the lining hose, the driving member 17 drives the main shaft 3 to rotate. The driving member 17 is an electric motor in the prior art. The hard tooth surface cylindrical gear reducer 18 is a reducer in the prior art. The driving member 17 drives the main shaft 3 to rotate through the hard tooth surface cylindrical gear reducer 18 and the transmission chain 21.

[0034] In some embodiments, the drum body 1 is provided with a sight glass 23 at the upper end thereof. The sight glass 23 is arranged opposite to the opening 2. Through the sight glass 23, the lining hose inside the drum body 1 can be observed.

[0035] In some embodiments, the outlet reversing assembly comprises a reversing section, a rotating shaft 24, a hydraulic cylinder 25, and a hydraulic station 26. The reversing section is detachably arranged on the opening 2 and cooperates with the opening 2. The two sides of the reversing section are symmetrically and fixedly provided with the rotating shaft 24. The rotating shaft 24 is rotatably connected with the output shaft of the hydraulic cylinder 25. The cylinder body of the hydraulic cylinder 25 is hingedly connected with the drum body 1. The hydraulic cylinder 25 is controlled by the hydraulic station 26. The reversing section comprises a connecting pipe 34, a first flange 35, and a second flange 36. The connecting pipe 34 is in the shape of a cylinder and is sealingly connected with the first flange 35 at one end. The other end of the connecting pipe 34 is sealingly connected with the second flange 36. The axis of the first flange 35 is parallel to the axis of the connecting pipe 34. The angle between the axis of the connecting pipe 34 and the axis of the second flange 36 is θ, and 0°≤θ≤60°. The second flange 36 is sealingly and fixedly connected with the opening 2 on the drum body 1. In the process of storing the lining hose into the drum body 1, the reversing section is detached from the opening 2 for easy installation. When the whole lining hose is stored into the drum body 1, the reversing section is fixed on the opening 2. In the process of conveying the lining hose into the pipeline, the lining hose passes through the hole in the reversing section. Under the action of the reversing section, the opening of the reversing section is obliquely downward, which guides the output of the lining hose and prevents the lining hose from being damaged. When the lining hose is heated and solidified on the pipeline to be repaired, the end of the lining hose is sealingly and fixedly connected with the first flange 35, and then steam is supplied into the drum body 1.

[0036] In some embodiments, the tensioning component comprises a tensioning base 27, a limiting block 28, a supporting cylinder 29, a tensioning shaft 30 and a tensioning wheel 31, the tensioning wheel 31 is fixedly arranged on the tensioning shaft 30, the tensioning shaft 30 is arranged in the transmission belt 7 and parallel to the main rotating shaft 3, both ends of the tensioning shaft 30 are arranged in a vertical sliding groove 32, the sliding groove 32 is arranged on the limiting block 28, the limiting block 28 is fixedly arranged on the tensioning base 27, the tensioning base 27 is fixedly arranged on the inner wall of the drum body 1, the supporting cylinder 29 is fixedly arranged in the sliding groove 32, the fixed part of the supporting cylinder 29 is fixedly arranged on the tensioning base 27, and the output part of the supporting cylinder 29 is in abutment against the tensioning shaft 30. The supporting cylinder 29 is a hydraulic cylinder in the prior art, and the supporting cylinder 29 is controlled by the hydraulic station 26. When the transmission belt 7 is loose, the supporting cylinder 29 works, the supporting cylinder 29 moves upward in the sliding groove 32 by abutting against the tensioning shaft 30, and the transmission belt 7 reaches a tight state under the action of the tensioning wheel 31. In this way, the transmission belt 7 does not relax and lose the function in the process of transporting the inner liner hose. The limiting block 28 limits the tensioning shaft 30 to move only in the vertical direction.

[0037] In the description of the present application, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0038] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "arrangement", "connection", "fixing", "threading" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0039] The above is only the preferred embodiment of the present application, it should be understood that the present application is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, and can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein by the above teaching or related art or knowledge. The modification and change made by the person skilled in the art without departing from the spirit and scope of the present application shall be within the protection scope of the claims attached to the present application.

Claims

1. A dual axis rotating pipe rehabilitation drum suitable for long pipe rehabilitation, characterized by: It includes drum body (1), steam assembly, power assembly, inner lining hose winding assembly and outlet turnover assembly, the middle of one end of the drum body (1) is provided with opening (2), the outlet turnover assembly is detachably arranged on the opening (2), the inner lining hose winding assembly is horizontally fixedly arranged in the inside of the drum body (1) and is matched with the opening (2), the power assembly is sealingly fixedly arranged on the outside of the drum body (1) and is connected with the inner lining hose winding assembly, and the steam assembly is fixedly arranged on the side wall of the drum body (1). The inner lining hose winding assembly includes main rotating shaft (3), auxiliary rotating shaft (4), first pulley (5), second pulley (6), transmission belt (7), first fixed seat (8), second fixed seat (9), sliding seat (10) and adjusting rod (11), the first pulley (5) is fixedly arranged on the main rotating shaft (3), the second pulley (6) is fixedly arranged on the auxiliary rotating shaft (4), the first pulley (5) and the second pulley (6) are connected through the transmission belt (7), the inner lining hose is fixedly arranged on the transmission belt (7), the main rotating shaft (3) and the auxiliary rotating shaft (4) are arranged horizontally and parallel to each other, the two ends of the main rotating shaft (3) are fixedly arranged on the side wall of the drum body (1) through the first fixed seat (8) respectively, the main rotating shaft (3) is connected with the power assembly, the two ends of the auxiliary rotating shaft (4) are rotatably arranged on the sliding seat (10) respectively, the sliding seat (10) is arranged on the second fixed seat (9) through the adjusting rod (11), the second fixed seat (9) is fixedly arranged on the side wall of the drum body (1), and the main rotating shaft (3) and the auxiliary rotating shaft (4) are provided with a tensioning component, the tensioning component is arranged in the transmission belt (7), the transmission belt (7) is matched with the opening (2), and the first pulley (5) and the second pulley (6) are synchronous pulleys.

2. A bi-axial rotating pipe rehabilitation drum suitable for long pipe rehabilitation according to claim 1, characterized in that: The steam assembly includes steam joint (12), safety valve (13), blowdown valve (14) and monitoring assembly, the steam joint (12), the monitoring assembly and the safety valve (13) are sealingly arranged on the top of the drum body (1), and the blowdown valve (14) is sealingly fixedly arranged on the bottom of the drum body (1).

3. A bi-axial rotating pipe rehabilitation drum suitable for long pipe rehabilitation according to claim 2, characterized in that: The monitoring assembly includes air pressure gauge (15) and thermometer (16), and the air pressure gauge (15) and the thermometer (16) are sealingly fixedly arranged on the top of the drum body (1).

4. A bi-axial rotating pipe rehabilitation drum suitable for long pipe rehabilitation according to any one of claims 1-3, characterized in that: The power assembly comprises a driving member (17), a hard-tooth cylindrical gear reducer (18), a main transmission wheel (19), a secondary transmission wheel (20) and a transmission chain (21), the secondary transmission wheel (20) is fixedly arranged at the end of the main rotating shaft (3), the main transmission wheel (19) and the secondary transmission wheel (20) are connected through the transmission chain (21), the main transmission wheel (19) is arranged on the output shaft of the hard-tooth cylindrical gear reducer (18), the input end of the hard-tooth cylindrical gear reducer (18) is connected with the output shaft of the driving member (17), and the main transmission wheel (19), the secondary transmission wheel (20) and the transmission chain (21) are arranged in a protective cover (22).

5. A bi-axial rotating pipe rehabilitation drum suitable for long pipe rehabilitation according to any one of claims 1-3, characterized in that: An end of the drum body (1) is provided with a sight glass (23) at the upper portion, and the sight glass (23) is arranged opposite to the opening (2).

6. A bi-axial rotating pipe rehabilitation drum suitable for long pipe rehabilitation according to any one of claims 1-3, characterized in that: The outlet turnover assembly comprises a turnover section, a rotating shaft (24), a hydraulic cylinder (25) and a hydraulic station (26), the turnover section is detachably arranged on the opening (2) and cooperates with the opening (2), the rotating shaft (24) is symmetrically and fixedly arranged at the two sides of the turnover section, the rotating shaft (24) is rotationally connected with the output shaft of the hydraulic cylinder (25), the cylinder body of the hydraulic cylinder (25) is hingedly connected with the drum body (1), and the hydraulic cylinder (25) is controlled by the hydraulic station (26).

7. A bi-axial rotating pipe rehabilitation drum suitable for long pipe rehabilitation according to any one of claims 1-3, characterized in that: The tensioning component comprises a tensioning base (27), a limiting block (28), a supporting cylinder body (29), a tensioning shaft (30) and a tensioning wheel (31), the tensioning wheel (31) is fixedly arranged on the tensioning shaft (30), the tensioning shaft (30) is arranged in the transmission belt (7) and is parallel to the main rotating shaft (3), the two ends of the tensioning shaft (30) are arranged in vertical sliding grooves (32), the sliding grooves (32) are arranged on the limiting block (28), the limiting block (28) is fixedly arranged on the tensioning base (27), the tensioning base (27) is fixedly arranged on the inner wall of the drum body (1), the supporting cylinder body (29) is fixedly arranged in the sliding groove (32), the fixed part of the supporting cylinder body (29) is fixedly arranged on the tensioning base (27), and the output part of the supporting cylinder body (29) abuts against the tensioning shaft (30).

8. A bi-axial rotating pipe rehabilitation drum suitable for long pipe rehabilitation according to any one of claims 1-3, characterized in that: The cross section of the drum body (1) is oval, the axis lines of the main rotating shaft (3) and the secondary rotating shaft (4) are in the same plane as the axis line of the drum body (1), and the axis line of the main rotating shaft (3) is perpendicular to the axis line of the drum body (1).

9. A bi-axial rotating pipe rehabilitation drum suitable for long pipe rehabilitation according to any one of claims 1-3, characterized in that: The second fixing seat (9) is provided with a sliding hole (33), the lower end of the sliding seat (10) is slidingly arranged in the sliding hole (33), and the adjusting rod (11) is threadedly connected with the sliding seat (10).

10. A bi-axial rotating pipe rehabilitation drum suitable for long pipe rehabilitation according to claim 6, characterized in that: The turnover nipple comprises a connecting pipe (34), a first flange (35) and a second flange (36), the connecting pipe (34) is cylindrical and one end thereof is sealingly connected with the first flange (35), the other end of the connecting pipe (34) is sealingly connected with the second flange (36), the axial center line of the first flange (35) is parallel to the axial center line of the connecting pipe (34), the included angle between the axial center line of the connecting pipe (34) and the axial center line of the second flange (36) is θ, and 0°≤θ≤60°.

Images