A permanent magnetic adsorption module

Abstract

The present invention provides a permanent magnetic adsorption module, including a fixed base component, a friction enhancement component, a first magnetic adsorption unit and a driving component, wherein the fixed base component includes a first fixed base and a second fixed base, wherein the first fixed base and the second fixed base are connected by a steel column, an even number of the first magnetic adsorption units are distributed circumferentially on the second fixed base, a rotating component is provided between the first fixed base and the second fixed base, and the rotating component is provided with second magnetic adsorption units having the same number and corresponding matching with the first magnetic adsorption units, the driving component is located on the first fixed base, the driving component is connected to the rotating component, and the friction enhancement component is located on both sides of the second fixed base. The present invention has a simple structure, light weight, large suction force, convenient control and high stability.

Description

Technical Field

[0001] The present invention relates to the technical field of adsorption devices, and more specifically, to a permanent magnetic adsorption module. Background Art

[0002] In some special working environments such as cargo ship cabin inspection, container inspection, and transmission tower maintenance, the robot is required to have a certain arm climbing ability. In order to overcome the gravity during climbing, it is necessary to set up an adsorption structure for the robot. The existing adsorption modules are of various forms, including vacuum suction cup adsorption modules, electromagnetic adsorption modules, rotor reverse thrust adsorption modules, and mechanical switching permanent magnetic adsorption modules, etc. These modules can work on the surface of steel structures. However, they also have certain disadvantages: (1) The vacuum suction cup adsorption module needs to be connected to other equipment such as a vacuum generator, and its total weight is large, which increases the burden on the climbing machine itself; (2) The electromagnetic adsorption module also has the problem of low suction-to-weight ratio; (3) The rotor reverse thrust adsorption module is seriously insufficient in stability and is not suitable for high-altitude operations; (4) The conventional mechanical switching permanent magnetic adsorption module uses a single magnet unit or drives multiple groups of magnet units through multiple gear transmission belts. The former has the problem of relatively low suction-to-weight ratio, and the latter has the problem of complex structure. China Patent Publication No. CN105151152A, published on December 16, 2015, discloses a magnetic adsorption module with controllable magnetic force. The module mainly includes a DC reduction motor, an active synchronous pulley, a double-sided toothed synchronous belt, a driven synchronous pulley, a magnetic seat, a main bracket and a module connection seat. Three magnetic seats distributed in a regular triangle are installed and fixed on the main bracket, and their magnetic elements are respectively connected to the three driven synchronous pulleys. The area of ​​the adsorption surface of the patent is small, and the suction force to weight ratio is low. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of existing adsorption modules, such as large weight, low suction force to weight ratio and complex structure, and to provide a permanent magnetic adsorption module. The present invention has a simple structure, light weight, large suction force, convenient control and high stability.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a permanent magnetic adsorption module, including a fixed base assembly, a friction enhancement assembly, a first magnetic adsorption unit and a driving assembly, the fixed base assembly includes a first fixed base and a second fixed base, the first fixed base and the second fixed base are connected by a steel column, an even number of the first magnetic adsorption units are distributed circumferentially on the second fixed base, a rotating assembly is provided between the first fixed base and the second fixed base, the rotating assembly is provided with second magnetic adsorption units that are the same in number and corresponding to the first magnetic adsorption units, the driving assembly is located on the first fixed base, the driving assembly is connected to the rotating assembly, and the friction enhancement assembly is located on both sides of the second fixed base. In the present technical solution, the first magnetic adsorption unit and the second magnetic adsorption unit are arranged correspondingly, and the second magnetic adsorption unit is located on the rotating component. The driving device can drive the rotating component connected thereto to rotate, thereby changing the relative position of the first adsorption unit and the second magnetic adsorption unit, so that the present device generates magnetic attraction or does not generate magnetic attraction, thereby overcoming the shortcomings of the complex structure of the ordinary mechanical switching permanent magnetic adsorption module. The present device directly contacts the climbing object through the friction enhancement component, wherein the magnetic attraction generated by the present device can enhance the friction force of the friction enhancement component on the climbing object, which is used to balance the gravity of the present device, and the magnetic attraction can also balance the gravity torque of the present device.

[0005] Furthermore, the first magnetic adsorption unit includes a first radial magnet cavity, and a first radial magnet is disposed in the first radial magnet cavity.

[0006] Furthermore, the rotating assembly includes a rotating base and a first gear, the first gear is fixed on the outer ring of the rotating base, the first gear is connected to the driving assembly, the rotating base is provided with a flange bearing and a thrust bearing for axial positioning, the flange bearing is located in the middle of the thrust bearing, the rotating base is also provided with a central axis for radial positioning, the central axis passes through the flange bearing, and the second magnetic adsorption unit is located on the side of the rotating base close to the second fixed base. In this technical solution, the outer ring of the rotating base is fixed with a first gear, the driving device drives the first gear to rotate, and the rotating base will rotate with the first gear, so that the first magnetic adsorption unit on the rotating base and the second magnetic adsorption unit on the second fixed base can overlap with different poles or overlap with the same poles, so that the device generates magnetic attraction or does not generate magnetic attraction, and the rotating base rotates around the flange bearing, the thrust bearing and the central axis, wherein the flange bearing and the thrust bearing help the rotating base to perform axial positioning, and the central axis helps the rotating base to perform radial positioning.

[0007] Furthermore, the second magnetic adsorption unit includes a second radial magnet cavity, in which a second radial magnet is provided, and the second radial magnet can switch with the first radial magnet between the same pole overlap or the different pole overlap state through the rotating assembly. When the first radial magnet and the second radial magnet of the first magnetic adsorption unit overlap with the same pole, the whole device shows a very strong magnetic force to the outside, and forms a strong suction force with the steel structure surface of the climbing object. When the first radial magnet and the second radial magnet of the first magnetic adsorption unit overlap with the different poles, the magnetic attraction of the device is weakened to be negligible, and the climbing object is loosened. The change of the overlapping position of the first radial magnet and the second radial magnet is achieved by changing the rotating base by the rotating assembly.

[0008] Furthermore, the driving assembly includes a driving motor and a second gear, the output shaft of the driving motor is connected to the second gear, and the second gear is meshed with the first gear. In this technical solution, the output shaft of the driving motor drives the second gear to rotate, and since the first gear on the rotating base is meshed with the second gear, the driving motor can drive the rotating base to rotate, so that the relative position of the first magnetic adsorption unit and the second magnetic adsorption unit changes.

[0009] Furthermore, the friction enhancement component includes a first bracket, a second bracket and a friction rubber sheet, wherein the first bracket and the second bracket are respectively arranged on two sides of the second fixed base, the periphery of the first bracket and the second bracket are connected by a connecting piece, and the friction rubber sheet is located on the second bracket. The friction rubber sheet of the second bracket directly contacts the surface of the object being climbed, and when the first magnetic adsorption unit and the second magnetic adsorption unit of the device overlap at the same level, the magnetic attraction force generated causes the second bracket to generate pressure on the surface of the climbing object, thereby increasing the friction between the friction rubber sheet and the surface of the climbing object, which is used to balance the gravity of the device.

[0010] Furthermore, the friction rubber sheet is bonded to the second bracket.

[0011] Furthermore, the first bracket is located between the second fixed base and the first fixed base, and the first bracket is inserted through the steel column. Since the first bracket is inserted through the steel column, the steel column helps the friction enhancement component as a whole to be connected and positioned with the fixed base component.

[0012] Furthermore, a spring is sleeved on the steel column between the first bracket and the first fixed base. In this technical solution, since the first magnetic adsorption unit and the second magnetic adsorption unit are in a state of coincidence of the same poles, the entire adsorption module shows a very strong magnetic attraction to the outside, and the generated magnetic attraction will further compress the spring, and the further compressed spring will generate a reaction force on the first bracket and the second bracket, so that the second bracket and the surface of the climbing object are under pressure, increasing the friction between the friction rubber sheet on the second bracket and the surface of the object being climbed, thereby balancing the gravity of the device.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention uses a rotating assembly and a driving assembly to rotate the whole body, thereby switching the relative position between the first magnetic adsorption unit and the second magnetic adsorption unit. There is no complicated mechanical switching, and the structure is simple and easy to implement;

[0015] 2. The present invention adopts magnetic adsorption, replacing the traditional vacuum suction cup and electromagnetic adsorption designs, which greatly reduces the weight of the adsorption module, and the first fixed base with a hollow structure also reduces the overall weight;

[0016] 3. The present invention can be controlled by driving a motor, has strong stability, and can be used as the adsorption terminal of various steel structure climbing machines. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the explosion structure of the present invention.

[0019] Figure 3 Schematic diagram a of the distribution of the first radial magnet and the second radial magnet in the present invention.

[0020] Figure 4 FIG. 2 is a schematic diagram b of the distribution of the first radial magnet and the second radial magnet in the present invention. FIG.

[0021] Figure 5 FIG. 3 is a distribution diagram c of the first radial magnet and the second radial magnet in the present invention. FIG.

[0022] Figure 6 It is a schematic diagram of the cooperation between the first magnetic adsorption unit and the second magnetic adsorption unit in the initial state of the present invention.

[0023] Figure 7 It is a schematic diagram of the cooperation between the first magnetic adsorption unit and the second magnetic adsorption unit in the working state of the present invention.

[0024] Figure 8Schematic diagram of the distribution of the first magnetic adsorption unit on the second fixed base in Example 2.

[0025] Fig. 9 This is a schematic diagram of the coordination between the first magnetic adsorption unit and the second magnetic adsorption unit in Example 3.

[0026] The illustrations are as follows:

[0027] 1-fixed base assembly; 11-first fixed base; 12-second fixed base; 13-steel column; 2-first magnetic adsorption unit; 21-first radial magnet cavity; 22-first radial magnet; 3-rotating assembly; 31-rotating base; 32-first gear; 33-central shaft; 34-thrust bearing; 35-flange bearing; 4-second magnetic adsorption unit; 41-second radial magnet cavity; 42-second radial magnet; 5-driving assembly; 51-driving motor; 52-second gear; 6-friction enhancement assembly; 61-first bracket; 62-second bracket; 63-friction rubber sheet; 64-spring, DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with specific implementation methods. The accompanying drawings are only used for exemplary descriptions and are only schematic diagrams, not actual drawings, and cannot be understood as limiting this patent; in order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0029] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0030] Example 1

[0031] like Figures 1 to 7The first embodiment of a permanent magnetic adsorption module of the present invention is shown. A permanent magnetic adsorption module comprises a fixed base assembly 1, a first magnetic adsorption unit 2, a rotating assembly 3, a second magnetic adsorption unit 4, a driving assembly 5 and a friction enhancement assembly 6, wherein the fixed base assembly 1 comprises a first fixed base 11 and a second fixed base 12, the rotating assembly 3 is located between the first fixed base 11 and the second fixed base 12, the first magnetic adsorption unit 2 is arranged on the second fixed assembly 12, the second magnetic adsorption unit 4 is correspondingly arranged on the rotating assembly 3, the first magnetic adsorption unit 2 and the second magnetic adsorption unit 4 are arranged oppositely, the driving assembly 5 is located on the first fixed base 11, and the driving assembly 5 is connected to the rotating assembly 3, the friction enhancement assembly 6 comprises a first bracket 61 and a second bracket 62, the first bracket 61 is located between the second fixed base 12 and the rotating assembly 3, the second bracket 62 is located on the bottom surface of the second fixed base 12, and a friction rubber sheet 64 is provided on the second bracket 62. The driving component 5 controls the rotation of the rotating component 3 to change the relative position of the first magnetic adsorption unit 2 and the second magnetic adsorption unit 4. The difference in relative position makes the embodiment in a working state of generating magnetic attraction or in an initial state of not generating magnetic attraction. The first bracket 61 and the second bracket 62 are annular brackets.

[0032] In this embodiment, a plurality of steel columns 13 are arranged on the circumferential periphery of the first fixed base 11 and the second fixed base 12, and the first fixed base 11, the first bracket 61 and the second fixed base 12 are fixedly connected by the steel columns 13, wherein the second fixed base 12 is provided with a notch in the circumference to facilitate the connection between the second bracket 62 on both sides of the second fixed base 12 and the first bracket 61, and the second bracket 62 is provided with an integrally formed protrusion in the circumference, and the protrusion is fixedly connected to the first bracket 61 through the circumferential notch of the second fixed base 12 by bolts.

[0033] In this embodiment, the driving component 5 includes a second gear 52 and a driving motor 51, and the rotating component 3 includes a rotating base 31 and a first gear 32. The driving motor 51 is located on the first fixed base 11, and the output shaft of the driving motor 51 is connected to the second gear 52. The first gear 32 is sleeved on the outer ring of the rotating base 31, and the first gear 32 is meshed with the second gear 52. The driving motor 51 rotates the rotating base 31 through the second gear 52; the second magnetic adsorption unit 4 is located on the rotating base 31, and the second magnetic adsorption unit 4 is arranged opposite to the first magnetic adsorption unit 2 of the second fixed base. The rotation of the rotating base 31 changes the relative state of the second magnetic adsorption unit 4 and the first magnetic adsorption unit 2.

[0034] Among them, flange bearings 35 and thrust bearings 34 for axial positioning are provided on both sides of the rotating base 31, and a central shaft 33 for radial positioning is also provided in the middle of the rotating base 31, and the central shaft 33 passes through the flange bearings 35, wherein the thrust bearings 34 can also help the rotating base 31 to rotate freely between the first fixed base 11 and the second fixed base 12. In the first magnetic adsorption unit 2 and the second magnetic adsorption unit 4, the first radial magnet cavity 21 and the second radial magnet cavity 41 are in the shape of a cylinder, the middle of the cylinder is hollowed out, and the two sides are cut flat to reveal a gap, and the magnetic pole direction of the radial magnet placed in the middle is parallel to the cutting direction of the two sides, so that the arrangement can improve the magnetic conductivity of the radial magnet.

[0035] In this embodiment, the first magnetic adsorption unit 2 includes a first radial magnet cavity 21, in which a first radial magnet 22 is disposed, and the second magnetic adsorption unit 4 includes a second radial magnet cavity 41, in which a second radial magnet 43 is disposed. When this embodiment is in the initial state, such as Figure 3 As shown, the first radial magnets 22 of all the first magnetic adsorption units 2 and the second radial magnets 42 of the second magnetic adsorption units 4 are in opposite polarity overlap. In this state, the magnetic attraction force of this embodiment is so small that it can be ignored. When the driving motor 51 causes the rotating base 31 to rotate, as shown in FIG. Figure 4 As shown, the second radial magnet 42 of the second magnetic adsorption unit 4 and the first radial magnet 22 of the first magnetic adsorption unit 2 coincide with each other in the same pole, and at this time, this embodiment shows a very strong magnetic force to the outside. It should be noted that there is no special requirement for the orientation of the first radial magnets 22 and the second radial magnets 42 arranged on the circumference of the first magnetic adsorption unit 2 and the second magnetic adsorption unit 4, as long as the rotating component 3 can make each second radial magnet 42 coincide with each first radial magnet 22 in the same pole or coincide with each other in the opposite pole at the same time during the rotation process, such as Figure 3 , Figure 4 and Figure 5 As shown, the first radial magnets 22 and the second radial magnets 42 can be distributed in such a way that when the rotating assembly 3 rotates the second radial magnets 42 , each second radial magnet 42 can completely coincide with each first radial magnet 22 at the same time with the same pole or with different poles.

[0036] In this embodiment, a spring 64 is sleeved on the steel column 13 between the first fixed base 11 and the first bracket 61, and the first bracket 61 pre-tightens and positions the spring 64. A friction rubber sheet 63 is also provided on the bottom surface of the second bracket 62. When the first radial magnet 22 and the second radial magnet 42 overlap at the same level, the magnetic attraction generated will further compress the spring 64, and the further compressed spring 64 will generate a reaction force on the first bracket 61 and the second bracket 62, so that the second bracket 62 and the surface of the climbing object are pressed, and the friction between the friction rubber sheet 63 on the second bracket 62 and the surface of the object being climbed is increased, so that the gravity of this embodiment can be balanced.

[0037] The working principle of this embodiment is as follows: the embodiment is pressed against the steel structure surface of the object to be climbed, and then the driving motor 51 is controlled to drive the second gear 52, thereby driving the rotating component 3 to rotate a certain angle in any direction until each second magnetic adsorption unit 4 coincides with the first magnetic adsorption unit 2. At this time, the entire adsorption module shows an extremely strong magnetic force to the outside, forming a strong suction force with the surface of the steel structure. A part of the magnetic suction force causes the spring 64 to be further compressed, so that pressure is generated between the friction rubber sheet 63 and the surface of the steel structure, thereby generating a friction force for offsetting its own gravity and the external action on this embodiment. The magnetic suction force is also used to offset the torque generated by its own weight or the torque acting on this embodiment from the outside, so that the present embodiment is firmly adsorbed on the surface of the steel structure, completing an adsorption process; in this embodiment When the embodiment needs to loosen from the steel structure surface of the climbed object, the drive motor 51 is controlled to drive the rotating component 3 to rotate a certain angle in any direction, so that the first magnetic adsorption units 2 and the second magnetic adsorption units 4 are restored to the initial state of coincidence of opposite poles, and the magnetic attraction force of the embodiment is weakened again to be negligible, and the loosening process is completed; wherein, due to the special structure of the embodiment, when the rotating component 3 rotates to the vicinity of the adsorption state, that is, when the first radial magnets 22 and the second radial magnets 42 become near the coincidence of the same poles, the resultant force other than the driving force of the drive motor 51 is manifested as a force that causes the first radial magnets 22 and the second radial magnets 42 to tend to coincide with the same poles, so in the adsorption state, the embodiment has a certain self-locking performance, and can maintain the adsorption state even if the drive motor 51 is powered off.

[0038] Example 2

[0039] This embodiment is similar to the embodiment 1, except that the spring 64 in this embodiment can be replaced by an elastic plastic ring. In this embodiment, the friction rubber sheet 63 is bonded to the bottom surface of the second bracket 62 .

[0040] In this embodiment, the first radial magnet and the second radial magnet in the first magnetic adsorption unit 2 and the second magnetic adsorption unit 4 are not distributed in one circle on the second fixed base 12 and the rotating assembly 3 in embodiment 1, but are distributed in three circles. Figure 8 As shown, there are three circles of first radial magnets 22 distributed on the second fixed base 12, and second radial magnets 42 are correspondingly arranged on the rotating base 31, which can still satisfy that when the rotating component 3 rotates the second radial magnets 42, each second radial magnet 42 can completely coincide with each first radial magnet 22 at the same time or coincide with different poles.

[0041] It should be noted that the first radial magnets 22 and the second radial magnets 42 may be distributed circumferentially in not only one or three circles but also other numbers of circles on the second fixed base 12 and the rotating component 3, and each circle of magnets may be designed to have different numbers and sizes, as long as the rotating component 3, when the second radial magnets 42 are rotated, can ensure that each second radial magnet 42 can be completely coincident with each first radial magnet 22 at the same time with the same pole or with different poles.

[0042] Example 3

[0043] This embodiment is similar to the embodiment 1, except that the magnetic attraction unit adopts another arrangement mode, which can make some magnets overlap with the same poles and make other magnets overlap with different poles, so as to realize the step-by-step adjustment of the magnetic force.

[0044] like Fig. 9 As shown, the orientations of the six magnets of the second fixed base 12 and the rotating base 31 are arranged as shown in the figure, and all six groups of radial magnets of the first magnetic adsorption unit 2 and the second magnetic adsorption unit 4 are in a state of simultaneous overlapping of opposite poles. Taking the angle shown in the figure as the initial state, when the rotating base 31 drives the second magnetic adsorption unit 4 to rotate 60°, two groups of radial magnets are in a state of overlapping of the same poles and four groups of radial magnets are in a state of overlapping of opposite poles; when the rotating base 31 drives the second magnetic adsorption unit 4 to rotate 120°, four groups of radial magnets are in a state of overlapping of the same poles and two groups of radial magnets are in a state of overlapping of opposite poles; when the rotating base 31 drives the second magnetic adsorption unit 4 to rotate 180°, all six groups of radial magnets are in a state of overlapping of the same poles at the same time; in the above process, as the rotation angle increases, the number of magnets in a state of overlapping of the same poles increases, and the magnetic force of the device increases.

[0045] It should be noted that the directions, quantities, sizes and numbers of turns of the first radial magnets 22 and the second radial magnets 42 in this embodiment may be in other forms. Figure 8 The content does not limit its direction, quantity, size and number of turns, as long as the rotating component 3 can completely overlap with each first radial magnet 22 at the same time or with different poles during the rotation of the second magnetic adsorption unit 4.

[0046] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A permanent magnetic adsorption module, characterized in that: The invention comprises a fixed base component (1), a friction enhancement component (6), a first magnetic adsorption unit (2) and a driving component (5), wherein the fixed base component (1) comprises a first fixed base (11) and a second fixed base (12), wherein the first fixed base (11) and the second fixed base (12) are connected via a steel column (13), an even number of the first magnetic adsorption units (2) are circumferentially distributed on the second fixed base (12), a rotating component (3) is provided between the first fixed base (11) and the second fixed base (12), and the rotating component (3) is provided with second magnetic adsorption units (4) having the same number as and corresponding to the first magnetic adsorption units (2), the driving component (5) is located on the first fixed base (11), the driving component (5) is connected to the rotating component (3), and the friction enhancement component (6) is located on both sides of the second fixed base (12); The first magnetic adsorption unit (2) comprises a first radial magnet cavity (21), and a first radial magnet (22) is provided in the first radial magnet cavity (21); The second magnetic attraction unit (4) comprises a second radial magnet cavity (41), in which a second radial magnet (42) is arranged, and the second radial magnet (42) can switch with the first radial magnet (22) between a state of same-pole overlap or a state of different-pole overlap through the rotating component (3).

2. A permanent magnetic adsorption module according to claim 1, characterized in that: The rotating assembly (3) comprises a rotating base (31) and a first gear (32), wherein the first gear (32) is fixed to the outer ring of the rotating base (31), and the first gear (32) is connected to the driving assembly (5). The rotating base (31) is provided with a flange bearing (35) and a thrust bearing (34) for axial positioning, wherein the flange bearing (35) is located in the middle of the thrust bearing (34). The rotating base (31) is also provided with a central axis (33) for radial positioning, wherein the central axis (33) passes through the flange bearing (35). The second magnetic adsorption unit (4) is located on a side of the rotating base (31) close to the second fixed base (12).

3. A permanent magnetic adsorption module according to claim 2, characterized in that: The driving assembly (5) comprises a driving motor (51) and a second gear (52); an output shaft of the driving motor (51) is connected to the second gear (52), and the second gear (52) is meshed with the first gear (32).

4. A permanent magnetic adsorption module according to claim 3, characterized in that: The friction enhancement component (6) comprises a first bracket (61), a second bracket (62) and a friction rubber sheet (63); the first bracket (61) and the second bracket (62) are respectively arranged on two sides of the second fixed base (12); the periphery of the first bracket (61) and the second bracket (62) are connected via a connecting piece; and the friction rubber sheet (63) is located on the second bracket (62).

5. A permanent magnetic adsorption module according to claim 4, characterized in that: The friction rubber sheet (63) is bonded to the second bracket (62).

6. A permanent magnetic adsorption module according to claim 4, characterized in that: The first bracket (61) is located between the second fixed base (12) and the first fixed base (11), and the first bracket (61) is passed through the steel column (13).

7. A permanent magnetic adsorption module according to claim 5, characterized in that: A spring (64) is sleeved on the steel column (13) between the first bracket (61) and the first fixed base (11).

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