Hand-cranking magnetic wheel type auxiliary threading mechanism

Abstract

The utility model relates to a hand-cranking magnetic wheel type auxiliary tape threading mechanism which comprises a first tape leading rotating shaft, a second tape leading rotating shaft, a magnetic driving assembly and a Teflon cloth tape. The first tape leading rotating shaft and the second tape leading rotating shaft are respectively in transmission connection with a group of magnetic driving components, a first material receiving disc and a second material receiving disc are respectively arranged on the first tape leading rotating shaft and the second tape leading rotating shaft, and two ends of a Teflon cloth tape are respectively wound on the first material receiving disc and the second material receiving disc; the Teflon cloth belt on the starting side is fixedly connected with the head of the pole piece through mucilage glue, the magnetic driving assembly on the end point side drives the second belt guiding rotating shaft to rotate so as to drive the second material collecting disc to wind the Teflon cloth belt, and the Teflon cloth belt moving along the pole piece belt penetrating path pulls the pole piece to conduct belt penetrating operation. Transmission is carried out through magnetic connection between the driving magnetic wheel and the driven magnetic wheel, and safety of pole pieces is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery pole piece threading technology field especially relates to a hand -operated magnetic wheel type auxiliary threading mechanism. BACKGROUND

[0002] In the process of making lithium battery pole piece through coating, rolling, slitting, sheet making, etc., the pole piece needs to be threaded in the interior of the coating equipment, in order to ensure the stability of the pole piece, the threading needs to be carried out at a slower speed, and the threading distance is far, generally about 60-70 meters, so that the existing manual threading mechanism needs a long time to thread the pole piece, and it is difficult to ensure the balance of the force exerted by the threading operator in this period of time, and the force exerted by different operators is also unbalanced, when the operator suddenly uses a large torque to drive the threading mechanism to thread, the pole piece is easily broken or falls off, especially when the pole piece passes through the relatively closed equipment such as an oven, the operator's vision is blocked by the oven, and the specific state of the pole piece threading process cannot be seen, which increases the uncertainty of the pole piece threading, resulting in low efficiency and success rate of the pole piece threading. SUMMARY

[0003] In order to solve the problems in the prior art, the utility model provides a hand -operated magnetic wheel type auxiliary threading mechanism.

[0004] The utility model provides a hand -operated magnetic wheel type auxiliary threading mechanism, including first lead belt shaft, second lead belt shaft, magnetic drive assembly and ferrofluor cloth belt, first lead belt shaft and second lead belt shaft are arranged at the starting side and the end point side of pole piece threading respectively, first lead belt shaft, second lead belt shaft are connected with a group of magnetic drive assembly transmission respectively, first lead belt shaft and second lead belt shaft are provided with first material collecting disc and second material collecting disc respectively, and the both ends of ferrofluor cloth belt are wound on first material collecting disc and second material collecting disc respectively and are arranged along the pole piece threading path, the ferrofluor cloth belt at the starting side is fixedly connected with the head of pole piece through adhesive, and the magnetic drive assembly at the end point side drives second lead belt shaft to rotate to drive second material collecting disc to wind ferrofluor cloth belt, and the ferrofluor cloth belt moving along the pole piece threading path pulls the pole piece to carry out threading operation.

[0005] Among them, the magnetic drive assembly includes passive magnetic wheel, driving magnetic wheel and crank handle, the end face of first lead belt shaft and the end face of second lead belt shaft are all installed with a passive magnetic wheel, the driving magnetic wheel is arranged in parallel on the side of passive magnetic wheel and is connected with the support vertical plate through the rotating shaft, and the crank handle is connected with the rotating shaft of driving magnetic wheel.

[0006] In some embodiments, support vertical plates are arranged on both the starting side and the ending side, both ends of the first belt rotating shaft and both ends of the second belt rotating shaft are connected with the corresponding support vertical plates through a belt seat bearing, and the magnetic driving assembly is installed on the outer side of the corresponding support vertical plate.

[0007] In some embodiments, the passive magnetic wheel is arranged with a plurality of first magnetic blocks and a plurality of second magnetic blocks in the circumferential direction, the active magnetic wheel is coaxially arranged with a first magnetic wheel and a second magnetic wheel, the first magnetic wheel is arranged with a plurality of first magnetic blocks at equal angles in the circumferential direction, the second magnetic wheel is arranged with a plurality of second magnetic blocks at equal angles in the circumferential direction, the first magnetic blocks of the first magnetic wheel are arranged staggered with the second magnetic blocks of the second magnetic wheel, and the N-pole of the first magnetic block is arranged outward in the radial direction, and the S-pole of the second magnetic block is arranged outward in the radial direction.

[0008] In some embodiments, the diameter of the active magnetic wheel is smaller than the diameter of the passive magnetic wheel.

[0009] In some embodiments, the gap between the active magnetic wheel and the passive magnetic wheel is 2-4 mm.

[0010] In some embodiments, the crank handle comprises a crank arm and a handle, one end of the crank arm is vertically arranged with a transmission rod connected with the rotating shaft, the other end of the crank arm is connected with the handle, a receiving groove matched with the shape of the handle is arranged on the crank arm, a connecting shaft is arranged in the receiving groove, a connecting sleeve is arranged on one end of the handle, and the handle is rotatably arranged at the end of the crank arm through the connecting sleeve and the connecting shaft.

[0011] In some embodiments, the transmission rod and the rotating shaft are connected through a key.

[0012] In some embodiments, a sliding sleeve is arranged at the shaft center of the first material collecting disc and the second material collecting disc, the sliding sleeve of the first material collecting disc is sleeved on the first belt rotating shaft, the sliding sleeve of the second material collecting disc is sleeved on the second belt rotating shaft, a positioning sleeve is fixed on the first belt rotating shaft and the second belt rotating shaft, a positioning assembly is arranged on the first material collecting disc and the second material collecting disc, the positioning assembly of the first material collecting disc is clamped and fixed with the positioning sleeve of the first belt rotating shaft, and the positioning assembly of the second material collecting disc is clamped and fixed with the positioning sleeve of the second belt rotating shaft.

[0013] In some embodiments, the positioning assembly comprises a mounting seat and a bolt, the bolt is arranged in the sliding hole of the mounting seat, a ball head is arranged on one end of the bolt, and a positioning head is arranged on the other end of the bolt, a positioning hole is arranged on the positioning sleeve, and the bolt is inserted into the positioning hole through the positioning head.

[0014] In some embodiments, a stop ring is arranged between the positioning head and the body of the latch, and the diameter of the stop ring is greater than the inner diameter of the sliding hole.

[0015] Compared with the prior art, the utility model has the beneficial effects that: the main magnetic wheel is driven to rotate by the crank handle, the main magnetic wheel drives the passive magnetic wheel to rotate through magnetic force, the magnetic force driving assembly on the starting side drives the first belt guide shaft and the first material collecting disc to rotate, the magnetic force driving assembly on the ending side drives the second belt guide shaft and the second material collecting disc to rotate, thereby driving the iron-fluorine cloth belt to pull the pole piece to carry out the threading operation; the transmission is carried out through the magnetic force connection between the main magnetic wheel and the passive magnetic wheel, when the pole piece threading encounters resistance, the rotating speed of the crank handle and the main magnetic wheel is too fast, or the torque of the crank handle and the main magnetic wheel is too large during the threading process, the magnetic force connection will be disconnected, mechanical overload protection is formed, the pole piece is prevented from being torn, and the safety of the pole piece is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic diagram of the hand-cranked magnetic wheel type auxiliary threading mechanism of the embodiment of the application.

[0017] Figure 2 It is a side view structure schematic diagram of the hand-cranked magnetic wheel type auxiliary threading mechanism of the embodiment of the application.

[0018] Figure 3 It is a top view structure schematic diagram of the hand-cranked magnetic wheel type auxiliary threading mechanism of the embodiment of the application.

[0019] Figure 4 It is a magnetic pole distribution structure schematic diagram of the passive magnetic wheel and the main magnetic wheel of the embodiment of the application.

[0020] Reference signs: 101, starting side; 102, ending side;

[0021] 1, support stand; 11, belt seat bearing; 12, passing roller;

[0022] 2, first belt guide shaft; 21, first material collecting disc; 22, sliding sleeve;

[0023] 3, second belt guide shaft; 31, second material collecting disc;

[0024] 4, positioning sleeve; 41, positioning hole;

[0025] 5, positioning assembly; 51, mounting seat; 52, latch; 53, sliding hole; 54, ball head; 55, positioning head; 56, stop ring;

[0026] 6, magnetic drive assembly; 61, passive magnetic wheel; 62, active magnetic wheel; 621, first magnetic wheel; 622, second magnetic wheel; 623, rotating shaft; 624, shaft hole; 625, key groove; 63, crank; 631, rocker arm; 632, handle; 633, transmission rod; 634, storage groove; 635, connecting shaft; 636, connecting sleeve; 64, gap;

[0027] 7, first magnetic block;

[0028] 8, second magnetic block;

[0029] 9, Teflon tape. DETAILED DESCRIPTION

[0030] The specific embodiments of the utility model are described with reference to the drawings.

[0031] Reference Figure 1 , the figure is the three-dimensional structure schematic diagram of hand-cranked magnetic wheel type auxiliary strapping mechanism, the left and right sides of the figure are starting side 101 and terminal side 102 respectively, Teflon tape 9 extends from the first material collecting disc 21 of starting side 101 to the second material collecting disc 31 of terminal side 102 along the pole piece strapping path, and the Teflon tape 9 can drive the pole piece from the starting side 101 to the terminal side 102, to complete the strapping operation.

[0032] Reference Figures 1 to 4 A hand-cranked magnetic wheel type auxiliary strapping mechanism, comprising a first tape guide shaft 2, a second tape guide shaft 3, a magnetic drive assembly 6 and a Teflon tape 9, the first tape guide shaft 2 and the second tape guide shaft 3 are arranged at the starting side 101 and the terminal side 102 of the pole piece strapping respectively, the first tape guide shaft 2 and the second tape guide shaft 3 are respectively connected with a group of magnetic drive assemblies 6, the first tape guide shaft 2 and the second tape guide shaft 3 are respectively provided with a first material collecting disc 21 and a second material collecting disc 31, and the Teflon tape 9 is wound on the first material collecting disc 21 and the second material collecting disc 31 respectively and is arranged along the pole piece strapping path; the Teflon tape 9 at the starting side 101 is fixedly connected with the pole piece head through adhesive, the magnetic drive assembly 6 at the terminal side 102 drives the second tape guide shaft 3 to rotate to drive the second material collecting disc 31 to wind the Teflon tape 9, and the Teflon tape 9 moving along the pole piece strapping path pulls the pole piece to perform the strapping operation.

[0033] Among them, the magnetic drive assembly 6 includes passive magnetic wheel 61, active magnetic wheel 62 and crank 63, the end face of the first tape guide shaft 2 and the end face of the second tape guide shaft 3 are all installed with a passive magnetic wheel 61, the active magnetic wheel 62 is arranged in parallel on one side of the passive magnetic wheel 61 and is connected with the support vertical plate 1 through the rotating shaft 623, and the crank 63 is connected with the rotating shaft 623 of the active magnetic wheel 62.

[0034] The hand-cranked magnetic wheel-type auxiliary threading mechanism of this application drives the active magnetic wheel 62 to rotate via the crank handle 63. The active magnetic wheel 62 drives the passive magnetic wheel 61 to rotate via magnetic force. The magnetic drive assembly 6 on the starting side 101 drives the first guide shaft 2 and the first take-up tray 21 to rotate. The magnetic drive assembly 6 on the ending side 102 drives the second guide shaft 3 and the second take-up tray 31 to rotate, thereby driving the Teflon cloth belt 9 to pull the electrode sheet for threading. The transmission is achieved through the magnetic connection between the active magnetic wheel 62 and the passive magnetic wheel 61. During the threading process, if the electrode sheet encounters resistance during threading, the crank handle 63 and the active magnetic wheel 62 rotate too fast, or the torque of the crank handle 63 and the active magnetic wheel 62 is too large, the magnetic connection will be broken, forming a mechanical overload protection to prevent the electrode sheet from being torn off and to ensure the safety of the electrode sheet.

[0035] It should be further noted that Teflon tape 9 has good high temperature resistance, chemical corrosion resistance, non-stick properties, electrical insulation and flame retardancy, and a long service life, which is beneficial for the traction electrode sheet to be threaded.

[0036] In order to install the first guide belt shaft 2 and the second guide belt shaft 3, in this embodiment, refer to Figures 1 to 3 Support plates 1 are provided on both the starting side 101 and the ending side 102. Both ends of the first guide belt shaft 2 and the second guide belt shaft 3 are connected to the corresponding support plates 1 through a bearing 11. The magnetic drive assembly 6 is installed on the outside of the corresponding support plates 1.

[0037] Understandably, with this configuration, the support plate 1 is connected to the frame of the coating equipment, and the first guide belt shaft 2 and the second guide belt shaft 3 are respectively mounted on the support plate 1 on the starting side 101 and the end side 102 via bearing 11, so that the first guide belt shaft 2 and the second guide belt shaft 3 are parallel to the roller 12 of the coating equipment. The bearing 11 can ensure that the first guide belt shaft 2 and the second guide belt shaft 3 can rotate smoothly, reducing the resistance of the electrode sheet being threaded.

[0038] To achieve magnetic transmission between the active magnetic wheel 62 and the passive magnetic wheel 61, in this embodiment, reference is made to... Figure 4 The passive magnetic wheel 61 has multiple first magnetic blocks 7 and multiple second magnetic blocks 8 arranged alternately in the circumferential direction; the active magnetic wheel 62 has a first magnetic wheel 621 and a second magnetic wheel 622 arranged coaxially. The first magnetic wheel 621 has multiple first magnetic blocks 7 arranged at equal angles in the circumferential direction, and the second magnetic wheel 622 has multiple second magnetic blocks 8 arranged at equal angles in the circumferential direction. The first magnetic blocks 7 of the first magnetic wheel 621 and the second magnetic blocks 8 of the second magnetic wheel 622 are staggered. The N pole of the first magnetic block 7 is arranged radially outward, and the S pole of the second magnetic block 8 is arranged radially outward.

[0039] It can be understood that, in this way, on the passive magnetic wheel 61, the plurality of first magnetic blocks 7 and the plurality of second magnetic blocks 8 are staggered on the same wheel body, on the active magnetic wheel 62, the first magnetic wheel 621 is provided with only the first magnetic block 7, and the second magnetic wheel 622 is provided with only the second magnetic block 8, the first magnetic block 7 of the first magnetic wheel 621 is staggered with the second magnetic block 8 of the second magnetic wheel 622, and the magnetic force transmission is formed between the active magnetic wheel 62 and the passive magnetic wheel 61 through the principle of same-pole repulsion and opposite-pole attraction.

[0040] In order to save labor, in the embodiment, with reference to Figure 4 , the diameter of the active magnetic wheel 62 is smaller than the diameter of the passive magnetic wheel 61.

[0041] It can be understood that, in this way, the diameter of the active magnetic wheel 62 is smaller than the diameter of the passive magnetic wheel 61, so that the rotating speed of the active magnetic wheel 62 is greater than the rotating speed of the passive magnetic wheel 61, achieving the effect of saving labor, thereby reducing the labor intensity of the pole piece threading.

[0042] In order to avoid direct contact between the active magnetic wheel 62 and the passive magnetic wheel 61, in the embodiment, with reference to Figure 4 , the gap 64 between the active magnetic wheel 62 and the passive magnetic wheel 61 is 2-4 mm.

[0043] It can be understood that, in this way, the magnetic force transmission of the magnetic wheel does not need direct contact, and the direct contact between the active magnetic wheel 62 and the passive magnetic wheel 61 will be rubbed during rotation, causing damage to the active magnetic wheel 62 and the passive magnetic wheel 61, and the gap 64 of 2-4 mm can prevent the active magnetic wheel 62 and the passive magnetic wheel 61 from contacting without weakening the magnetic force between the active magnetic wheel 62 and the passive magnetic wheel 61, thereby protecting the active magnetic wheel 62 and the passive magnetic wheel 61.

[0044] In order to drive the active magnetic wheel 62 to rotate, in the embodiment, with reference to Figures 1 to 3 , the crank 63 includes a rocker arm 631 and a handle 632, one end of the rocker arm 631 is vertically provided with a transmission rod 633 connected with the rotating shaft 623, the other end of the rocker arm 631 is connected with the handle 632, a receiving groove 634 matched with the shape of the handle 632 is formed in the rocker arm 631, a connecting shaft 635 is arranged in the receiving groove 634, one end of the handle 632 is provided with a connecting sleeve 636 sleeved on the connecting shaft 635, and the handle 632 is rotatably arranged at the end of the rocker arm 631 through the connecting sleeve 636 and the connecting shaft 635.

[0045] Understandably, with this configuration, the rocker arm 631 and the transmission rod 633 are vertically connected, the transmission rod 633 is connected to the rotating shaft 623, and the handle 632 is at the end of the rocker arm 631. The operator can hold the handle 632 and rotate the rocker arm 631, thereby driving the transmission rod 633 to rotate, and then sequentially driving the rotating shaft 623 and the active magnetic wheel 62 to rotate. When the active magnetic wheel 62 does not need to be rotated, the handle 632 can be stored in the storage slot 634 to avoid accidental human contact that could cause the active magnetic wheel 62 to rotate.

[0046] To ensure stable transmission between the transmission rod 633 and the active magnetic wheel 62, in this embodiment, reference is made to... Figures 1 to 4 The transmission rod 633 is connected to the rotating shaft 623 by a key.

[0047] Understandably, with this configuration, the inner wall of the shaft hole 624 of the rotating shaft 623 has a keyway 625, the transmission rod 633 is inserted into the shaft hole 624 and connected by a key, ensuring stable transmission between the transmission rod 633 and the rotating shaft 623.

[0048] In order to move the Teflon tape 9, in this embodiment, refer to Figure 1 and Figure 3 A sliding sleeve 22 is provided at the axis of both the first receiving tray 21 and the second receiving tray 31. The sliding sleeve 22 of the first receiving tray 21 is sleeved on the first guide belt shaft 2, and the sliding sleeve 22 of the second receiving tray 31 is sleeved on the second guide belt shaft 3. A positioning sleeve 4 is fixed on both the first guide belt shaft 2 and the second guide belt shaft 3. A positioning component 5 is provided on both the first receiving tray 21 and the second receiving tray 31. The positioning component 5 of the first receiving tray 21 is engaged and fixed with the positioning sleeve 4 of the first guide belt shaft 2, and the positioning component 5 of the second receiving tray 31 is engaged and fixed with the positioning sleeve 4 of the second guide belt shaft 3.

[0049] Understandably, with this setup, when electrode threading is not required, the positioning component 5 and the positioning sleeve 4 can be separated, allowing the first receiving tray 21 and the second receiving tray 31 to move along the first guide belt shaft 2 and the second guide belt shaft 3 respectively to positions close to the support plate 1. This, in turn, moves the Teflon tape 9 to a position close to the support plate 1, preventing the Teflon tape 9 from interfering with the electrode's feed and ensuring normal electrode coating operations. When electrode threading is required, the first receiving tray 21 and the second receiving tray 31 can move along the first guide belt shaft 2 and the second guide belt shaft 3 respectively to their corresponding positioning sleeves 4, where they are secured by their respective positioning components 5. This fixes the first receiving tray 21 and the second receiving tray 31 to the first guide belt shaft 2 and the second guide belt shaft 3, ensuring that the first guide belt shaft 2 and the second guide belt shaft 3 can respectively drive the first receiving tray 21 and the second receiving tray 31 to rotate for electrode threading.

[0050] In order to ensure that the positioning assembly 5 and the positioning sleeve 4 can be quickly docked, in the embodiment, referring to Figure 1 and Figure 3 , the positioning assembly 5 comprises a mounting seat 51 and a plug pin 52, the plug pin 52 is arranged in a sliding hole 53 of the mounting seat 51, one end of the plug pin 52 is provided with a ball head 54, the other end of the plug pin 52 is provided with a positioning head 55, the positioning sleeve 4 is provided with a positioning hole 41, and the plug pin 52 is inserted with the positioning hole 41 through the positioning head 55.

[0051] It can be understood that, by inserting the plug pin 52 with the positioning sleeve 4, the transmission stability between the first belt guide shaft 2 and the first material collecting disc 21 and between the second belt guide shaft 3 and the second material collecting disc 31 can be ensured, the plug pin 52 can be quickly inserted into or pulled out of the positioning hole 41 by being inserted and pulled out of the sliding hole 53 on the mounting seat 51, and the quick docking of the positioning assembly 5 and the positioning sleeve 4 can be ensured.

[0052] In order to avoid the plug pin 52 from being separated from the mounting seat 51, in the embodiment, referring to Figure 1 Figure 3 , a stop ring 56 is arranged between the positioning head 55 and the main body of the plug pin 52, and the diameter of the stop ring 56 is greater than the inner diameter of the sliding hole 53.

[0053] It can be understood that, by such an arrangement, the two ends of the plug pin 52 are limited by the ball head 54 and the stop ring 56, and the diameters of the ball head 54 and the stop ring 56 are both greater than the inner diameter of the sliding hole 53, so that the plug pin 52 is prevented from being separated from the sliding hole 53.

[0054] In the embodiment, a magnetic wheel is used for transmission, the magnetic wheel is a non-contact mechanical transmission structure, does not need a controller, is more convenient and labor-saving to operate, and has lower maintenance cost. When the pole piece falls off or the belt breaks during the belt threading process, the tension of the Teflon cloth belt 9 will suddenly decrease, the resistance received by the crank 63 will also suddenly decrease, a feedback can be directly given to the operator, the operator is reminded to check the pole piece, the pole piece is reattached to the Teflon cloth belt 9, and the belt threading continues. When the operator rotates the crank 63 at too high a speed, the magnetic force connection between the driving magnetic wheel 62 and the driven magnetic wheel 61 will be missed, a “slip” phenomenon occurs, the operator needs to rotate the crank 63 at a normal speed to form the magnetic force connection, and the pole piece is prevented from being pulled off due to human error. When the operator applies an excessive torque to the crank 63 in the case of resistance or jamming during the belt threading process, the magnetic force connection between the driving magnetic wheel 62 and the driven magnetic wheel 61 will also be missed, which is equivalent to a mechanical overload protection, and the safety of the pole piece is further protected.

[0055] The above is not intended to limit the technical scope of the utility model in any way, and any modification, equivalent change and modification made to the above embodiment according to the technical essence of the utility model still belongs to the scope of the technical scheme of the utility model.

Claims

1. A hand-cranked magnetic wheel-type assisted threading mechanism, characterized by, The application relates to a magnetic driving assembly for a magnetic pole strip winding device, which comprises a first lead belt rotating shaft, a second lead belt rotating shaft, the magnetic driving assembly and a Teflon cloth belt, the first lead belt rotating shaft and the second lead belt rotating shaft are arranged at the starting side and the terminal side of the magnetic pole strip winding respectively, the first lead belt rotating shaft and the second lead belt rotating shaft are respectively connected with a group of the magnetic driving assembly, the first lead belt rotating shaft and the second lead belt rotating shaft are respectively provided with a first material collecting disc and a second material collecting disc, the two ends of the Teflon cloth belt are respectively wound on the first material collecting disc and the second material collecting disc and arranged along a magnetic pole strip winding path, the Teflon cloth belt at the starting side is fixedly connected with the head of the magnetic pole strip through adhesive, the magnetic driving assembly at the terminal side drives the second lead belt rotating shaft to rotate so as to drive the second material collecting disc to wind the Teflon cloth belt, and the Teflon cloth belt moving along the magnetic pole strip winding path drags the magnetic pole strip to perform the winding operation. The magnetic driving assembly comprises a passive magnetic wheel, an active magnetic wheel and a crank handle, the end surface of the first lead belt rotating shaft and the end surface of the second lead belt rotating shaft are respectively provided with a passive magnetic wheel, the active magnetic wheel is arranged on the side of the passive magnetic wheel in parallel and connected with a supporting vertical plate through a rotating shaft, and the crank handle is connected with the rotating shaft of the active magnetic wheel.

2. The hand-cranked magnetic wheel-type aid to donning mechanism according to claim 1, characterized in that, Supporting vertical plates are arranged at the starting side and the terminal side, the two ends of the first lead belt rotating shaft and the two ends of the second lead belt rotating shaft are respectively connected with corresponding supporting vertical plates through a belt seat bearing, and the magnetic driving assembly is arranged on the outer side of the corresponding supporting vertical plate.

3. The hand-cranked magnetic wheel-type aid to donning mechanism according to claim 1, characterized in that, The passive magnetic wheel is provided with a plurality of first magnetic blocks and a plurality of second magnetic blocks which are staggered in the circumferential direction, the active magnetic wheel is coaxially provided with a first magnetic wheel and a second magnetic wheel, the first magnetic wheel is provided with a plurality of first magnetic blocks which are equiangular in the circumferential direction, the second magnetic wheel is provided with a plurality of second magnetic blocks which are equiangular in the circumferential direction, the first magnetic blocks of the first magnetic wheel and the second magnetic blocks of the second magnetic wheel are staggered, the N pole of the first magnetic block is arranged outward in the radial direction, and the S pole of the second magnetic block is arranged outward in the radial direction.

4. The hand-cranked magnetic wheel-type aid to donning mechanism according to claim 1, characterized in that, The diameter of the active magnetic wheel is smaller than that of the passive magnetic wheel.

5. The hand-cranked magnetic wheel-type aid to donning mechanism according to claim 1, characterized in that, The gap between the active magnetic wheel and the passive magnetic wheel is 2-4 mm.

6. The hand-cranked magnetic wheel-type aid to donning mechanism according to claim 1, characterized in that, The crank handle comprises a rocker arm and a handle, one end of the rocker arm is vertically provided with a transmission rod connected with the rotating shaft, the other end of the rocker arm is connected with the handle, a receiving groove matched with the shape of the handle is formed in the rocker arm, a connecting shaft is arranged in the receiving groove, a connecting sleeve is arranged on one end of the handle and sleeved on the connecting shaft, and the handle is rotatably arranged at the end of the rocker arm through the connecting sleeve and the connecting shaft.

7. The hand-cranked magnetic wheel-type aid to donning mechanism according to claim 6, characterized in that, The transmission rod is connected with the rotating shaft through a key.

8. The hand-cranked magnetic wheel-type aid to donning mechanism according to claim 1, characterized in that, Slips are arranged at the shaft centers of the first material collecting disc and the second material collecting disc, the slip of the first material collecting disc is sleeved on the first lead belt rotating shaft, the slip of the second material collecting disc is sleeved on the second lead belt rotating shaft, positioning sleeves are fixedly arranged on the first lead belt rotating shaft and the second lead belt rotating shaft, positioning assemblies are arranged on the first material collecting disc and the second material collecting disc, the positioning assembly of the first material collecting disc is clamped and fixed with the positioning sleeve of the first lead belt rotating shaft, and the positioning assembly of the second material collecting disc is clamped and fixed with the positioning sleeve of the second lead belt rotating shaft.

9. The hand-cranked magnetic wheel-type aid to donning mechanism according to claim 8, characterized in that, The positioning assembly comprises a mounting seat and a plug pin, the plug pin is arranged in a sliding hole of the mounting seat, one end of the plug pin is provided with a ball head, the other end of the plug pin is provided with a positioning head, a positioning hole is arranged on the positioning sleeve, and the plug pin is inserted into the positioning hole through the positioning head.

10. The hand-cranked magnetic wheel-type aid to donning mechanism according to claim 9, characterized in that, A stop ring is arranged between the positioning head and the main body of the plug pin, and the diameter of the stop ring is greater than the inner diameter of the sliding hole.

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