Rotary torque self-adaptive stepless adjustable conversion device

Abstract

The invention belongs to the technical field of rotary torque conversion equipment, and particularly relates to a rotary torque self-adaptive stepless adjustable conversion device which comprises a circular shell, a first end cover and a second end cover, and the first end cover and the second end cover are fixedly connected with the two ends of the circular shell in a sealed mode through bolts. Two first through holes are formed in the outer wall of the first end cover, first connecting bearings are fixedly connected to the hole walls of the first through holes, and a transmission rod and an output shaft are fixedly connected to the inner walls of the two first connecting bearings correspondingly. The device has the functions of rotating torque self-adaptive regulation and control, internal dehumidification and stepless adjustable conversion, positive and negative rotation regulation is sensitive and convenient, external force changes can be rapidly matched, the protection capacity of the device can be effectively improved, damage to the internal structure of the device and a driving motor due to transmission jamming is avoided, and the service life of the device is prolonged. And the use reliability of the device is further improved.

Description

Technical Field

[0001] This invention belongs to the technical field of rotary torque conversion equipment, and in particular relates to a rotary torque adaptive stepless adjustable conversion device. Background Technology

[0002] In the field of equipment such as fitness equipment and industrial winding machines that require bidirectional force adaptation, the torque adjustment and forward and reverse rotation linkage of the output shaft are core technical requirements, which directly affect the user experience and operational stability of the equipment.

[0003] Currently, most torque conversion devices on the market adopt a fixed threshold clutch structure or manual adjustment mode, which lacks the ability to adaptively adjust to dynamic external forces and has insufficient torque adjustment flexibility, affecting the ease of use of the device.

[0004] The fixed threshold design cannot adapt to dynamic external force changes in different scenarios, making it difficult to achieve accurate force feedback adjustment. Furthermore, the linkage response accuracy between the output shaft and the clutch device is low, and there is a lag in the recognition of reverse force, making it impossible to quickly match external force changes.

[0005] Therefore, when users exert force using this type of device in fitness equipment, it is easy for the device to become stuck or unevenly applied, affecting the training effect and safety of use.

[0006] In industrial winding equipment, problems such as inconsistent winding tension and overload occur frequently, reducing product quality and production efficiency.

[0007] To address this issue, we propose a rotary torque adaptive stepless adjustable conversion device. Summary of the Invention

[0008] The purpose of this invention is to address the above-mentioned problems by providing a rotary torque adaptive stepless adjustable conversion device.

[0009] To achieve the above objectives, the present invention adopts the following technical solution: a rotary torque adaptive stepless adjustable conversion device, comprising a circular shell, a first end cover and a second end cover, wherein the first end cover and the second end cover are respectively sealed and fixedly connected to the two ends of the circular shell by bolts; the outer wall of the first end cover has two through holes, and the walls of the through holes are fixedly connected to a first connecting bearing; the inner walls of the two first connecting bearings are respectively fixedly connected to a transmission rod and an output shaft.

[0010] The outer wall of the second end cap has two through holes, and the walls of the through holes are fixedly connected to second connecting bearings. The inner walls of the two second connecting bearings are respectively fixedly connected to a fixing rod and a drive shaft.

[0011] The transmission rod and the fixed rod are fixedly connected to the first electromagnetic clutch mechanism on the opposite side of each other;

[0012] An L-shaped plate is fixedly connected to the inner wall of the first end cover. A torque sensor is fixedly connected to the lower surface of the L-shaped plate. One end of the torque sensor is fixedly connected to the inner end of the output shaft. An extension rod is fixedly connected to the other end of the torque sensor. A second electromagnetic clutch mechanism is fixedly connected to the side of the extension rod opposite to the drive shaft.

[0013] The transmission rod and the extension rod are jointly and fixedly sleeved with a linkage mechanism.

[0014] An internal drying auxiliary mechanism is fixedly connected to the inner wall of the top of the circular shell.

[0015] In the aforementioned adaptive continuously variable torque conversion device, the first electromagnetic clutch mechanism includes a first electromagnetic clutch active side and a first electromagnetic clutch driven side. The inner wall of the rotor of the first electromagnetic clutch active side is fixedly connected to the side end of the fixed rod. The coil part of the first electromagnetic clutch active side is fixedly connected to the inner wall of the second end cover by bolts. A first toothed ring is fixedly sleeved on the outer wall of the rotating part of the first electromagnetic clutch active side. The inner wall of the first electromagnetic clutch driven side is fixedly connected to the side end of the transmission rod.

[0016] In the aforementioned adaptive continuously variable torque conversion device, the second electromagnetic clutch mechanism includes a second electromagnetic clutch active side and a second electromagnetic clutch driven side. The inner wall of the rotor of the second electromagnetic clutch active side is fixedly connected to the side end of the drive shaft. The coil part of the second electromagnetic clutch active side is fixedly connected to the inner wall of the second end cover by bolts. A second toothed ring is fixedly sleeved on the outer wall of the rotating part of the second electromagnetic clutch active side. The outer wall of the second toothed ring meshes with the outer wall of the first toothed ring. The inner wall of the second electromagnetic clutch driven side is fixedly connected to the side end of the extension rod.

[0017] In the aforementioned adaptive continuously variable torque conversion device, the linkage mechanism includes a first belt gear fixedly sleeved on the outer wall of the transmission rod, a second belt gear fixedly sleeved on the wall of the extension rod, and a transmission belt sleeved on the outer walls of the first belt gear and the second belt gear.

[0018] In the aforementioned rotary torque adaptive stepless adjustable conversion device, the internal cavity drying auxiliary mechanism includes an internally threaded ring fixedly connected to the inner wall of a circular shell. A drying cylinder is threadedly connected to the inner wall of the internally threaded ring. A support mesh plate is fixedly connected to the inner wall of the drying cylinder. A rubber piston block is slidably and sealingly connected to the inner wall of the bottom end of the drying cylinder. A moving rod is fixedly connected to the lower surface of the rubber piston block. The bottom end of the moving rod passes through the lower surface of the drying cylinder. A through hole three that mates with the moving rod is opened on the lower surface of the drying cylinder. A spring is fixedly sleeved on the rod wall of the moving rod. The two ends of the spring are fixedly connected to the lower surface of the rubber piston block and the inner wall of the drying cylinder, respectively. A drying particle layer is filled inside the top end of the drying cylinder. An inlet one-way valve and an outlet one-way valve are fixedly connected to the top end of the drying cylinder. A cam that mates with the moving rod is fixedly sleeved on the rod wall of the transmission rod.

[0019] In the aforementioned rotary torque adaptive stepless adjustable conversion device, the vertical part of the L-shaped plate has a through hole four, and the inner wall of the through hole four is fixedly connected to a limit bearing. The inner wall of the limit bearing is fixedly sleeved with the rod wall of the transmission rod, and a PLC controller is fixedly connected to the upper surface of the horizontal part of the L-shaped plate.

[0020] In the aforementioned adaptive continuously variable torque conversion device, a load connecting wheel is fixedly sleeved at the output end of the output shaft.

[0021] In the aforementioned rotary torque adaptive stepless adjustable conversion device, a support base is fixedly connected to the bottom outer wall of the circular shell, and a fixing through hole is provided at each of the four corners of the upper surface of the support base.

[0022] Compared with existing technologies, the advantages of a rotary torque adaptive stepless adjustable converter are:

[0023] 1. Using a first electromagnetic clutch mechanism, a torque sensor, a second electromagnetic clutch mechanism, and a linkage mechanism, when the device is used in fitness equipment or an industrial winding machine, the load is first connected to the load connecting wheel via a transmission connector. Then, based on the operating environment, a reverse rotation torque threshold is preset in the PLC controller. Simultaneously, the drive shaft is connected to the drive motor, causing the load connecting wheel to rotate forward. During this process, the PLC controller first controls the second electromagnetic clutch mechanism to operate, while the first electromagnetic clutch mechanism disengages and stops working. At this time, the output shaft rotates forward. When a large reverse force is generated at the load, it is fed back to the torque sensor through the load connecting wheel and the output shaft. The torque sensor then... The detected torque is fed back to the PLC controller in the form of an electrical signal. The PLC controller then controls the first electromagnetic clutch mechanism to be energized and the second electromagnetic clutch mechanism to be de-energized and paused. In conjunction with the linkage mechanism, the output shaft and the load connecting wheel can be reversed immediately, thereby driving the load to move in the opposite direction. In fitness equipment, this prevents users from experiencing jamming or uneven force when exerting force, ensuring training effectiveness and safety. In industrial winding equipment, it avoids problems such as inconsistent winding tension and overload, improving product quality and production efficiency. This mechanism enables the device to have adaptive control and stepless adjustment of rotational torque, and the forward and reverse adjustment is sensitive and convenient, which can quickly match changes in external force.

[0024] 2. By using the first electromagnetic clutch mechanism, torque sensor, and second electromagnetic clutch mechanism, when the load connecting wheel stops rotating due to external environmental interference during device operation, the torque sensor detects a sudden zero torque. The PLC controller then receives the corresponding electrical signal from the torque sensor and de-energizes the coils of both the first and second electromagnetic clutch mechanisms. This causes the driven sides of both mechanisms to suspend transmission, preventing the rotational motion of the drive shaft driven by the drive motor from being transmitted to the output shaft. This not only prevents the drive motor from stalling and burning out but also ensures that the internal transmission structure of the device is not damaged due to jamming. This mechanism effectively improves the device's protection capabilities, preventing damage to the internal structure and drive motor caused by transmission jamming, and enhancing the reliability of the device.

[0025] 3. Through the internal drying auxiliary mechanism, during operation, the transmission rod remains rotated due to the linkage mechanism. The transmission rod drives the cam to rotate, and the convex part of the cam can squeeze the moving rod. The moving rod pushes the rubber piston block upward, and the spring is stretched to generate a restoring force. The rubber piston block then pushes the air in the drying cylinder to be discharged through the exhaust one-way valve. When the convex part of the cam moves away from the moving rod, the rubber piston block moves downward under the restoring force of the spring, and the moving rod extends outward. At the same time, the drying cylinder draws air from inside the circular shell through the intake one-way valve to maintain uniform air pressure. The air flowing inside the drying cylinder is dehumidified by the drying particle layer. The internal drying auxiliary mechanism can circulate and dehumidify the air inside the circular shell, avoiding the situation where a humid environment inside the circular shell can damage electronic components. This mechanism gives the device a dehumidification function, improving the device's protective capability and reliability. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a rotary torque adaptive stepless adjustable conversion device provided by the present invention;

[0027] Figure 2 yes Figure 1 A cross-sectional structural diagram;

[0028] Figure 3 yes Figure 2 A partially enlarged structural diagram;

[0029] Figure 4 This is a schematic diagram of the internal cavity drying auxiliary mechanism in a rotary torque adaptive stepless adjustable conversion device provided by the present invention;

[0030] Figure 5 This is a three-dimensional structural diagram of the cam in a rotary torque adaptive stepless adjustable conversion device provided by the present invention.

[0031] In the diagram: 1. Circular shell, 2. First end cover, 3. Second end cover, 4. First connecting bearing, 5. Transmission rod, 6. First electromagnetic clutch mechanism, 61. First electromagnetic clutch active side, 62. First electromagnetic clutch driven side, 63. First gear ring, 7. Second electromagnetic clutch mechanism, 71. Second electromagnetic clutch active side, 72. Second electromagnetic clutch driven side, 73. Second gear ring, 8. Linkage mechanism, 81. First belt gear, 82. Second belt gear, 83. Transmission belt, 9. Inner cavity drying auxiliary mechanism, 91. Internal threaded ring, 92. Drying cylinder, 93. Support mesh plate, 94. Rubber piston block, 95. Moving rod, 96. Spring, 97. Drying particle layer, 98. Inlet one-way valve, 99. Outlet one-way valve, 910. Cam, 10. Output shaft, 11. Second connecting bearing, 12. Fixed rod, 13. Drive shaft, 14. L-shaped plate, 15. Torque sensor, 16. Extension rod, 17. Limit bearing, 18. PLC controller, 19. Load connecting wheel, 20. Support base. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] like Figures 1-5 As shown, a rotary torque adaptive stepless adjustable conversion device includes a circular housing 1, a first end cover 2, and a second end cover 3. The first end cover 2 and the second end cover 3 are respectively sealed and fixedly connected to the two ends of the circular housing 1 by bolts. The outer wall of the first end cover 2 has two through holes, and the walls of the through holes are fixedly connected to the first connecting bearings 4. The inner walls of the two first connecting bearings 4 are respectively fixedly connected to the transmission rod 5 and the output shaft 10. The outer wall of the second end cover 3 has two through holes, and the walls of the through holes are fixedly connected to the second connecting bearings 11. The inner walls of the two second connecting bearings 11 are respectively fixedly connected to the fixing rod 12 and the drive shaft 13.

[0034] The transmission rod 5 and the fixed rod 12 are fixedly connected to the same side of the first electromagnetic clutch mechanism 6. The first electromagnetic clutch mechanism 6 includes a first electromagnetic clutch active side 61 and a first electromagnetic clutch driven side 62. The inner wall of the rotor of the first electromagnetic clutch active side 61 is fixedly connected to the side end of the fixed rod 12. The coil part of the first electromagnetic clutch active side 61 is fixedly connected to the inner wall of the second end cover 3 by bolts. The outer wall of the rotating part of the first electromagnetic clutch active side 61 is fixedly sleeved with a first toothed ring 63. The inner wall of the first electromagnetic clutch driven side 62 is fixedly connected to the side end of the transmission rod 5.

[0035] An L-shaped plate 14 is fixedly connected to the inner wall of the first end cover 2. A through hole four is provided in the vertical part of the L-shaped plate 14, and a limit bearing 17 is fixedly connected to the inner wall of the through hole four. The inner wall of the limit bearing 17 is fixedly sleeved with the rod wall of the transmission rod 5. A PLC controller 18 is fixedly connected to the upper surface of the horizontal part of the L-shaped plate 14, and a torque sensor 15 is fixedly connected to the lower surface of the L-shaped plate 14. One end of the torque sensor 15 is fixedly connected to the inner end of the output shaft 10, and an extension rod 16 is fixedly connected to the other end of the torque sensor 15. A second electromagnetic ionizer is fixedly connected to the side of the extension rod 16 opposite to the drive shaft 13. The second electromagnetic clutch mechanism 7 includes a second electromagnetic clutch active side 71 and a second electromagnetic clutch driven side 72. The inner wall of the rotor of the second electromagnetic clutch active side 71 is fixedly connected to the side end of the drive shaft 13. The coil part of the second electromagnetic clutch active side 71 is fixedly connected to the inner wall of the second end cover 3 by bolts. A second toothed ring 73 is fixedly sleeved on the outer wall of the rotating part of the second electromagnetic clutch active side 71. The outer wall of the second toothed ring 73 meshes with the outer wall of the first toothed ring 63. The inner wall of the second electromagnetic clutch driven side 72 is fixedly connected to the side end of the extension rod 16. The first toothed ring 63 and the second toothed ring 73 have the same specifications.

[0036] The transmission rod 5 and the extension rod 16 are jointly and fixedly sleeved with a linkage mechanism 8. The linkage mechanism 8 includes a first belt gear 81 that is fixedly sleeved with the outer wall of the transmission rod 5, and a second belt gear 82 that is fixedly sleeved with the wall of the extension rod 16. The outer walls of the first belt gear 81 and the second belt gear 82 are jointly sleeved with a transmission belt 83. This design only transmits power without changing the transmission direction, and the first belt gear 81 and the second belt gear 82 have the same specifications.

[0037] An inner cavity drying auxiliary mechanism 9 is fixedly connected to the inner wall of the top of the circular shell 1. The inner cavity drying auxiliary mechanism 9 includes an internally threaded ring 91 fixedly connected to the inner wall of the circular shell 1. A drying cylinder 92 is threadedly connected to the inner wall of the internally threaded ring 91. A support mesh plate 93 is fixedly connected to the inner wall of the drying cylinder 92. A rubber piston block 94 is slidably connected to the inner wall of the bottom end of the drying cylinder 92. A moving rod 95 is fixedly connected to the lower surface of the rubber piston block 94. The bottom end of the moving rod 95 passes through the lower surface of the drying cylinder 92. The lower surface of the drying cylinder 92 has an opening. The through hole 3 cooperates with the moving rod 95. The rod wall of the moving rod 95 is fixedly sleeved with a spring 96. The two ends of the spring 96 are fixedly connected to the lower surface of the rubber piston block 94 and the inner wall of the drying cylinder 92, respectively. The top of the drying cylinder 92 is filled with a layer of drying particles 97. The top of the drying cylinder 92 is fixedly connected to an inlet one-way valve 98 and an outlet one-way valve 99. The rod wall of the transmission rod 5 is fixedly sleeved with a cam 910 that cooperates with the moving rod 95. This mechanism enables the device to have a dehumidification function, improves the device's protective capability and reliability.

[0038] The output end of the output shaft 10 is fixedly sleeved with a load connecting wheel 19. The bottom outer wall of the circular housing 1 is fixedly connected with a support base 20. The upper surface of the support base 20 is provided with fixed through holes at the four corners. The torque sensor 15 is electrically connected to the input end of the PLC controller 18 through wires. The first electromagnetic clutch mechanism 6 and the second electromagnetic clutch mechanism 7 are both electrically connected to the output end of the PLC controller 18 through wires. The above-mentioned power-conducting components and electrical connections are all existing technologies and will not be described in detail here.

[0039] The operating principle of the present invention is described as follows: When the device is used in fitness equipment or industrial winding machine, the load is first connected to the load connecting wheel 19 through a transmission connector (such as a connecting rope or transmission belt). Then, according to the usage environment, a reverse rotation torque threshold is preset in the PLC controller 18. At the same time, the drive shaft 13 is connected to the drive motor, and the drive motor drives the drive shaft 13 to rotate in the forward direction.

[0040] As the load connecting wheel 19 rotates forward, the PLC controller 18 first controls the second electromagnetic clutch mechanism 7 to work, while the first electromagnetic clutch mechanism 6 is disconnected and does not work. In the second electromagnetic clutch mechanism 7, the coil of the second electromagnetic clutch active side 71 is energized to generate a magnetic field, which magnetically attracts the driven disc of the second electromagnetic clutch driven side 72. The driven disc is in close contact with the rotor friction surface of the second electromagnetic clutch active side 71. The forward rotating drive shaft 13 drives the rotor of the second electromagnetic clutch active side 71 to rotate. During the rotor rotation, the friction force drives the driven disc of the second electromagnetic clutch driven side 72 to rotate, causing the extension rod 16 to rotate forward. The extension rod 16 drives the output shaft 10 to rotate forward through the torque sensor 15, and the output shaft 10 causes the load connecting wheel 19 to rotate forward.

[0041] When a large reverse force is generated at the load, it is fed back to the torque sensor 15 through the load connecting wheel 19 and the output shaft 10. The torque sensor 15 then feeds back the detected torque to the PLC controller 18 in real time in the form of an electrical signal. If the torque exceeds the preset reverse rotation torque threshold of the PLC controller 18, the PLC controller 18 controls the first electromagnetic clutch mechanism 6 to be energized and the second electromagnetic clutch mechanism 7 to be de-energized and suspended. At this time, the output shaft 10 immediately rotates in the reverse direction. Specifically, the coil of the first electromagnetic clutch driving side 61 is energized to generate a magnetic field, which attracts the driven plate of the first electromagnetic clutch driven side 62 to the first electromagnetic clutch driving side 61. The driven plate of the first electromagnetic clutch driven side 62 is in close contact with the rotor friction surface of the first electromagnetic clutch driving side 61. At the same time, the coil of the second electromagnetic clutch driving side 71 is de-energized and does not generate a magnetic field. The driven plate of the second electromagnetic clutch driven side 72 loses its magnetic force and separates from the rotor of the second electromagnetic clutch driving side 71. The transmission of the drive shaft 13 is no longer directly transmitted to the extension. The rotation of the rod 16 and the drive shaft 13 is transmitted to the first gear ring 63 through the second gear ring 73 at the rotor of the second electromagnetic clutch active side 71. The rotation direction of the first gear ring 63 is opposite to that of the second gear ring 73. The first gear ring 63 drives the transmission rod 5 to rotate in the opposite direction through the first electromagnetic clutch mechanism 6. The transmission rod 5 drives the second belt gear 82 to rotate in the opposite direction through the first belt gear 81 and the transmission belt 83. The second belt gear 82 drives the extension rod 16 to rotate in the opposite direction. The extension rod 16 drives the load connecting wheel 19 to rotate in the opposite direction through the torque sensor 15 and the output shaft 10, thereby driving the load to move in the opposite direction. In fitness equipment, this prevents users from experiencing jamming or uneven force when exerting force, ensuring training effect and safety. In industrial winding equipment, it can avoid problems such as inconsistent winding tension and overload, improving product quality and production efficiency. This mechanism enables the device to have the function of adaptive control of rotational torque and stepless adjustment, and the forward and reverse adjustment is sensitive and convenient, which can quickly match changes in external force.

[0042] When the load connecting wheel 19 stops rotating due to external environmental interference during the use of the device, that is, the torque sensor 15 detects that the torque suddenly becomes zero. Then, the PLC controller 18 receives the corresponding electrical signal generated by the torque sensor 15. The PLC controller 18 controls the coils of the first electromagnetic clutch mechanism 6 and the second electromagnetic clutch mechanism 7 to be de-energized, and causes the transmission of the first electromagnetic clutch driven side 62 and the second electromagnetic clutch driven side 72 to stop. That is, the rotation of the drive shaft 13 driven by the drive motor will not be transmitted to the output shaft 10. This not only avoids the drive motor from stalling and burning out, but also ensures that the internal transmission structure of the device will not be damaged due to jamming. This mechanism can effectively improve the protection capability of the device, avoid damage to the internal structure of the device and the drive motor due to transmission jamming, and improve the reliability of the device.

[0043] During operation, the linkage mechanism 8 keeps the transmission rod 5 rotating. The transmission rod 5 drives the cam 910 to rotate, and the protruding part of the cam 910 can squeeze the moving rod 95. The moving rod 95 pushes the rubber piston block 94 upward, and the spring 96 is stretched to generate a restoring force. The rubber piston block 94 then pushes the air in the drying cylinder 92 to be discharged through the exhaust one-way valve 99. When the protruding part of the cam 910 moves away from the moving rod 95, the rubber piston block 94 moves downward under the restoring force of the spring 96, and the moving rod 95 extends outward, while drying... The cylinder 92 draws in air from the inside of the circular housing 1 through the one-way air inlet valve 98 to maintain uniform air pressure. The air flowing inside the drying cylinder 92 is dehumidified by the drying particle layer 97. The inner cavity drying auxiliary mechanism 9 can circulate and dehumidify the air inside the circular housing 1, avoiding the situation where the damp environment inside the circular housing 1 will damage electronic devices. The inner cavity of the circular housing 1 is isolated by the first end cover 2 and the second end cover 3, which makes the maintenance cycle of the inner cavity drying auxiliary mechanism 9 longer. This mechanism enables the device to have a dehumidification function, improving the device's protection capability and reliability.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rotary torque adaptive stepless adjustable conversion device, comprising a circular housing (1), a first end cap (2), and a second end cap (3), characterized in that, The first end cap (2) and the second end cap (3) are sealed and fixedly connected to the two ends of the circular shell (1) by bolts respectively. The outer wall of the first end cap (2) has two through holes, and the walls of the through holes are fixedly connected to the first connecting bearings (4). The inner walls of the two first connecting bearings (4) are fixedly connected to the transmission rod (5) and the output shaft (10) respectively. The outer wall of the second end cap (3) has two through holes, and the walls of the through holes are fixedly connected to a second connecting bearing (11). The inner walls of the two second connecting bearings (11) are respectively fixedly connected to a fixing rod (12) and a drive shaft (13). The transmission rod (5) and the fixed rod (12) are fixedly connected to the first electromagnetic clutch mechanism (6) on the opposite side. An L-shaped plate (14) is fixedly connected to the inner wall of the first end cap (2). A torque sensor (15) is fixedly connected to the lower surface of the L-shaped plate (14). One side of the torque sensor (15) is fixedly connected to the inner end of the output shaft (10). An extension rod (16) is fixedly connected to the other side of the torque sensor (15). A second electromagnetic clutch mechanism (7) is fixedly connected to the side of the extension rod (16) opposite to the drive shaft (13). The transmission rod (5) and the extension rod (16) are together fixedly sleeved with a linkage mechanism (8). The inner wall of the top of the circular shell (1) is fixedly connected to an inner cavity drying auxiliary mechanism (9).

2. The rotary torque adaptive stepless adjustable conversion device according to claim 1, characterized in that, The first electromagnetic clutch mechanism (6) includes a first electromagnetic clutch active side (61) and a first electromagnetic clutch driven side (62). The inner wall of the rotor of the first electromagnetic clutch active side (61) is fixedly connected to the side end of the fixed rod (12). The coil part of the first electromagnetic clutch active side (61) is fixedly connected to the inner wall of the second end cover (3) by bolts. The outer wall of the rotating part of the first electromagnetic clutch active side (61) is fixedly sleeved with a first toothed ring (63). The inner wall of the first electromagnetic clutch driven side (62) is fixedly connected to the side end of the transmission rod (5).

3. The rotary torque adaptive stepless adjustable conversion device according to claim 2, characterized in that, The second electromagnetic clutch mechanism (7) includes a second electromagnetic clutch active side (71) and a second electromagnetic clutch driven side (72). The inner wall of the rotor of the second electromagnetic clutch active side (71) is fixedly connected to the side end of the drive shaft (13). The coil part of the second electromagnetic clutch active side (71) is fixedly connected to the inner wall of the second end cover (3) by bolts. The outer wall of the rotating part of the second electromagnetic clutch active side (71) is fixedly sleeved with a second toothed ring (73). The outer wall of the second toothed ring (73) meshes with the outer wall of the first toothed ring (63). The inner wall of the second electromagnetic clutch driven side (72) is fixedly connected to the side end of the extension rod (16).

4. The rotary torque adaptive stepless adjustable conversion device according to claim 1, characterized in that, The linkage mechanism (8) includes a first belt gear (81) fixedly sleeved on the outer wall of the transmission rod (5), and a second belt gear (82) fixedly sleeved on the rod wall of the extension rod (16). The outer walls of the first belt gear (81) and the second belt gear (82) are jointly sleeved with a transmission belt (83).

5. The rotary torque adaptive stepless adjustable conversion device according to claim 1, characterized in that, The internal drying auxiliary mechanism (9) includes an internally threaded ring (91) fixedly connected to the inner wall of the circular shell (1). A drying cylinder (92) is threadedly connected to the inner wall of the internally threaded ring (91). A support mesh plate (93) is fixedly connected to the inner wall of the drying cylinder (92). A rubber piston block (94) is slidably connected to the bottom inner wall of the drying cylinder (92). A moving rod (95) is fixedly connected to the lower surface of the rubber piston block (94). The bottom end of the moving rod (95) passes through the lower surface of the drying cylinder (92). The surface is provided with a through hole three that cooperates with the moving rod (95). The rod wall of the moving rod (95) is fixedly sleeved with a spring (96). The two ends of the spring (96) are fixedly connected to the lower surface of the rubber piston block (94) and the inner wall of the drying cylinder (92), respectively. The top of the drying cylinder (92) is filled with a layer of drying particles (97). The top of the drying cylinder (92) is fixedly connected with an inlet one-way valve (98) and an outlet one-way valve (99). The rod wall of the transmission rod (5) is fixedly sleeved with a cam (910) that cooperates with the moving rod (95).

6. The rotary torque adaptive stepless adjustable conversion device according to claim 1, characterized in that, The vertical part of the L-shaped plate (14) has a through hole four, and the inner wall of the through hole four is fixedly connected to a limit bearing (17). The inner wall of the limit bearing (17) is fixedly sleeved with the rod wall of the transmission rod (5). The upper surface of the horizontal part of the L-shaped plate (14) is fixedly connected to a PLC controller (18).

7. The rotary torque adaptive stepless adjustable conversion device according to claim 1, characterized in that, The output end of the output shaft (10) is fixedly sleeved with a load connecting wheel (19).

8. The rotary torque adaptive stepless adjustable conversion device according to claim 1, characterized in that, The bottom outer wall of the circular shell (1) is fixedly connected to a support base (20), and the upper surface of the support base (20) is provided with fixed through holes at the four corners.

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