Switch type disc magnetic wheel

Abstract

The switch type disc magnetic wheel comprises a magnetic conductive disc, a connecting piece is fixedly arranged on the left side of the magnetic conductive disc, magnetic steel is arranged in the magnetic conductive disc, and a switch mechanism is arranged on the right side of the magnetic steel. According to the switch type disc magnetic wheel, the first magnetic steel and the second magnetic steel which are stacked are arranged, the first magnetic steel is fixed in the magnetic conductive disc, the second magnetic steel is connected with the switch structure, the switch structure comprises the pin cover, the cover plate and the rotary knob, the second magnetic steel can be in linkage with the pin cover, and the switch pin is arranged on the pin cover and matched with the pin groove in the bottom of the cover plate. The rotary knob is fixed on the pin cover, a spring is arranged in the pin cover, the pin cover and the rotary knob are always forced to move outwards, the switch pin is stably matched in the pin groove, the switch pin can leave the pin groove by pressing the rotary knob, and at the moment, angle change between the N pole and the S pole between the second magnetic steel and the first magnetic steel can be achieved by rotating the rotary knob. Therefore, the magnetic flux between the two pieces of magnetic steel is changed, and the magnetic attraction force is also changed.

Description

Technical Field

[0001] The invention relates to a switch type disc magnetic wheel. Background Art

[0002] Magnetic wheels are used for adsorption on the working wall of wall-climbing robots, so that the robots can stably maintain working conditions such as flat surfaces, vertical surfaces, and inclined surfaces.

[0003] The structure of the conventional disc-type magnetic wheel is that after the magnetic steel and hardware are installed, the overall magnetic flux is a constant value, that is, the magnetic attraction is a constant value. Generally, the attraction of a single magnetic wheel is 50kg--400Kg. Since the attraction of the magnetic wheel is a constant value and always exists, the following problems will occur during use: 1. There is a risk that the magnetic wheel or the installed equipment will be adsorbed together with other iron tools or materials during storage, circulation, etc.; 2. In actual applications, the wall-climbing robot needs the magnetic wheel to generate attraction to realize the wall-climbing function when working, but after the work is completed or when the equipment needs maintenance, the robot needs to be withdrawn, and the magnetic wheel is still tightly adsorbed on the working wall and it is difficult to make it leave the working wall. It takes a lot of manpower and time costs to exit the working state, and there may be a risk of equipment damage in the process; 3. In a relatively complex working environment, ferromagnetic impurities are easily adsorbed on the magnetic circuit path on the surface of the magnetic wheel, resulting in reduced attraction of the magnetic wheel and increased rolling resistance of climbing the wall, which seriously affects the normal operation of the equipment. Due to the factors of the magnetic field circuit, when the magnetic wheel is maintained, the adsorbed ferromagnetic impurities are difficult to clean, which greatly increases the maintenance cost of the equipment. Summary of the invention

[0004] The invention provides a switch type disc magnetic wheel.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A switch-type circular disc magnetic wheel comprises a magnetic guide disk; the magnetic guide disk comprises a first magnetic guide disk and a second magnetic guide disk which cooperate with each other, a magnetic isolation ring is sleeved on the inner and outer walls of the first magnetic guide disk and the second magnetic guide disk, a connecting piece is fixedly arranged on the left side of the magnetic guide disk, a magnetic steel is arranged inside the magnetic guide disk, the magnetic steel comprises a first magnetic steel and a second magnetic steel which are superimposed on each other, the diameters of the first magnetic steel and the second magnetic steel are the same as the inner diameters of the first magnetic guide disk and the second magnetic guide disk, the first magnetic steel is close to the first boss of the connecting piece and the outer wall is fixed to the inner walls of the first fan ring body and the second fan ring body by glue; a switch structure is arranged on the right side of the second magnetic steel, and the switch structure It comprises a pin sleeve, a cover plate and a knob which cooperate with each other from the inside to the outside, the pin sleeve comprises a coaxially arranged chassis and a second boss, the second magnetic steel is fixedly connected to the chassis of the pin sleeve and there is a gap between the second magnetic steel and the bottom of the pin sleeve, and switch pins extending outward are arranged on opposite sides of the bottom of the outer wall of the second boss; the cover plate is fixed on the second guide magnetic disk, and a plurality of pin grooves are arranged at intervals on the bottom of the inner wall of the cover plate, and the pin grooves are opposite to each other and cooperate with the switch pins; the knob is arranged on the inner side of the cover plate, and the bottom of the knob is fixedly connected to the pin sleeve, and a spring is arranged inside the pin sleeve, one end of the spring abuts on the second magnetic steel, and the other end abuts on the bottom of the knob.

[0007] Preferably, the first guide disk and the second guide disk are both annular structures, and the inner sides are recessed inward to form a first groove and a second groove respectively; a first fan ring body parallel to the axis and opposite to the first groove is provided on the inner side of the lower end of the first guide disk, and a second fan ring body parallel to the axis and opposite to the second groove is provided on the inner side of the lower end of the second guide disk; the first guide disk and the second guide disk are on the same axis and are installed in a manner such that the first fan ring body and the second fan ring body are opposite to each other; the magnetic isolation ring is sleeved on the outer walls of the first fan ring body and the second fan ring body.

[0008] Preferably, the connecting member includes a clamping structure, a fixed disk and a first boss coaxially arranged from the outside to the inside, the clamping structure, the fixed disk and the first boss are all annular bodies and formed in one piece, the diameter and thickness of the fixed disk are respectively the same as the inner diameter and thickness of the first groove, the fixed disk is fixed in the first groove, and the outer side of the fixed disk is on the same horizontal plane as the first guide disk; the first boss is an annular body with the same inner diameter as the first groove, the outer wall of the first boss abuts against the inner wall of the first guide disk, and the clamping structure is used to connect the equipment that needs to work.

[0009] Preferably, an isolation air gap is provided between the first guide magnetic disk and the second sector ring body and between the second guide magnetic disk and the first sector ring body.

[0010] Preferably, the arc angles of the first sector ring body and the second sector ring body are both 180 degrees, and the first sector ring body and the second sector ring body are combined to form a complete annular body.

[0011] Preferably, two opposite first mounting holes are radially arranged on the second magnetic steel, a second mounting hole opposite to the first mounting hole is arranged at the bottom of the chassis, a pin is arranged between the second mounting hole and the first mounting hole, and the pin creates a certain gap between the pin sleeve and the second magnetic steel and enables linkage.

[0012] Preferably, the cover plate is an annular body and is fixed in the second groove by screws, and the outer side is in the same plane as the second guide disk; the cover plate is also provided with a corresponding magnetic attraction force value.

[0013] Preferably, the chassis and the second boss are both annular bodies, the diameter of the second boss is smaller than the chassis, two opposite third mounting holes are provided on the top of the second boss, and the knob is fixed to the third mounting holes on the pin sleeve by screws; a screw is also provided on the knob.

[0014] Preferably, the switch pin extends to an edge of the chassis.

[0015] Preferably, the first and second conductive disks are made of carbon steel; the magnetic steel is made of neodymium iron boron and is cylindrical in shape; the connecting piece is made of aluminum; and the switch structure is made of stainless steel.

[0016] Compared with the prior art, the switch type disk magnetic wheel of the present invention is provided with a first magnetic steel and a second magnetic steel superimposed and the first magnetic steel is fixed in the magnetic guide disk, so that the second magnetic steel is connected with a switch structure, the switch structure includes a pin cover, a cover plate and a knob, the second magnetic steel can be linked with the pin cover, a switch pin is provided on the pin cover and is matched with a pin groove at the bottom of the cover plate, the knob is fixed on the pin cover, and a spring is provided inside the pin cover to always force the pin cover and the knob to move outward, so that the switch pin is stably matched in the pin groove, and the switch pin can be separated from the pin by pressing the knob slot, at this time, rotating the knob can achieve the angle change between the N pole or S pole of the second magnetic steel and the first magnetic steel, so that the magnetic flux between the two magnetic steels changes, and the magnetic attraction also changes accordingly. When the second magnetic steel 32 and the N pole or S pole of the first magnetic steel are on different sides, the magnetic flux cancels out, and the magnetic wheel does not generate attraction to the outside at this time, so the magnetic wheel can be maintained or repaired; when the second magnetic steel and the N pole or S pole of the first magnetic steel are at different angles, different sizes of magnetic attraction will be generated, which increases the flexibility of the application of the magnetic wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the switch type disk magnetic wheel of the present invention.

[0018] Figure 2 It is a cross-sectional view of the switch type disk magnetic wheel of the present invention.

[0019] Figure 3This is the first exploded view of the switchable disc magnetic wheel of the present invention.

[0020] Figure 4 This is a second exploded view of the switchable disc magnetic wheel of the present invention.

[0021] Figure 5 It is a first partial schematic diagram of the switchable disk magnetic wheel of the present invention.

[0022] Figure 6 It is a second partial schematic diagram of the switchable disk magnetic wheel of the present invention.

[0023] Figure 7 The figure is a schematic diagram of the magnetic circuit direction of the switch-type disk magnetic wheel of the present invention in the open state.

[0024] Figure 8 The figure is a schematic diagram of the magnetic circuit direction of the switch-type disk magnetic wheel of the present invention in the closed state. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below with reference to the accompanying drawings.

[0026] like Figures 1 to 8 As shown, the switch-type disk magnetic wheel includes a guide disk 1, and the guide disk 1 includes a first guide disk 11 and a second guide disk 12 that cooperate with each other. The first guide disk 11 and the second guide disk 12 are both annular structures, and the inner sides are recessed inward to form a first groove and a second groove respectively; the first guide disk 11 is provided with a first fan ring body 111 parallel to its axis and opposite to the first groove on the inner side of the lower end, and the second guide disk 12 is provided with a second fan ring body 121 parallel to its axis and opposite to the second groove on the inner side of the lower end. The first guide disk 11 and the second guide disk 12 are on the same axis and are centered on the first fan ring body 1 The first guide magnetic disk 11 is fixed to the second fan ring body 121 by screws, and the second guide magnetic disk 12 is fixed to the first fan ring body 111 by screws. An air gap is provided between the first guide magnetic disk 11 and the second fan ring body 121 and between the second guide magnetic disk 12 and the first fan ring body 111. The arc angles of the first fan ring body 111 and the second fan ring body 121 are both 180 degrees. The first fan ring body 111 and the second fan ring body 121 are combined to form a complete annular body. The first guide magnetic disk 11 and the second guide magnetic disk 12 are made of carbon steel.

[0027] A magnetic isolation ring 2 is sleeved on the inner outer wall of the first guide magnetic disk 11 and the second guide magnetic disk 12 , that is, the first sector ring body 111 and the second sector ring body 121 . The magnetic isolation ring 2 is made of stainless steel.

[0028] A connector 5 is provided on the left side of the guide disk 1. The connector 5 is used to connect the equipment that needs to work. The connector 5 includes a clamping structure 51, a fixed disk 52 and a first boss 53 that are coaxially arranged from the outside to the inside. The clamping structure 51, the fixed disk 52 and the first boss 53 are all annular bodies and are integrally formed. The diameter and thickness of the fixed disk 52 are respectively the same as the inner diameter and thickness of the first groove. The fixed disk 52 is fixed in the first groove by screws, and the outer side of the fixed disk 52 is on the same horizontal plane as the first guide disk 11; the first boss 53 is an annular body with the same inner diameter as the first groove, and the outer wall of the first boss 53 abuts against the inner wall of the first guide disk 11. The clamping structure 51 is used to connect the equipment that needs to work. The clamping structure 51 can adapt to the needs of different equipment, has high flexibility, and is easy to disassemble, and can prevent the equipment from being affected by the magnetic circuit of the magnetic wheel; the material of the connector 5 is aluminum.

[0029] A magnetic steel 3 is arranged inside the conductive magnetic disk 1. The material of the magnetic steel 3 is neodymium iron boron. The magnetic steel 3 includes a first magnetic steel 31 and a second magnetic steel 32 which are superimposed on each other and have a cylindrical shape. The diameters of the first magnetic steel 31 and the second magnetic steel 32 are the same as the inner diameters of the first conductive magnetic disk 11 and the second conductive magnetic disk 12. The first magnetic steel 31 is close to the first boss 52 of the connecting piece 5 and the outer wall is fixed to the inner walls of the first fan ring body 111 and the second fan ring body 121 by glue.

[0030] The second magnetic steel 32 is arranged on the right side of the first magnetic steel 31. Two opposite first mounting holes 321 are radially arranged on the second magnetic steel 32. A switch structure 4 is arranged on the right side of the second magnetic steel 32. The switch structure 4 is made of stainless steel and includes a pin sleeve 41, a cover plate 42 and a knob 43 that cooperate with each other from the inside to the outside. The pin sleeve 41 includes a coaxially arranged chassis 411 and a second boss 412. The chassis 411 and the second boss 412 are both annular bodies. The diameter of the second boss 412 is smaller than that of the chassis 411. Switch pins 413 extending outward are arranged on opposite sides of the bottom of the outer wall of the boss 412, and the switch pins 413 extend to the edge of the chassis 411; a second mounting hole 4111 opposite to the first mounting hole 321 is arranged at the bottom of the chassis 411, and a pin 6 is arranged between the second mounting hole 4111 and the first mounting hole 321, and the pin 6 enables a certain gap between the pin sleeve 41 and the second magnetic steel 32 and enables linkage; two opposite third mounting holes 4121 are arranged on the top of the second boss 412.

[0031] The cover plate 42 is an annular body and is fixed in the second groove by screws, and the outer side of the cover plate 42 is on the same horizontal plane as the second guide disk 12, and a plurality of pin grooves 421 are arranged at intervals on the bottom of the inner wall of the cover plate 42, and the pin grooves 421 are opposite to each other and cooperate with the switch pin 413; the knob 43 is arranged on the inner side of the cover plate 42, and the bottom is in contact with the pin sleeve 41 and is fixed on the third mounting hole 4121 on the pin sleeve 41 by screws; a spring 7 is arranged inside the pin sleeve 41, and one end of the spring 7 abuts on the second magnetic steel 32, and the other end abuts on the bottom of the knob 43.

[0032] In the locked state, the spring 7 is in a compressed state and always forces the knob 43 to protrude from the horizontal plane of the cover plate 42. At this time, the switch pin 413 is locked together with the pin groove 421. Since the spring 7 is in contact with the side wall of the pin sleeve 41, the spring 7 always forces the pin sleeve 41 to push upward so that the switch pin 413 always cooperates stably with the pin groove 421. When a certain pressure is added to the knob 43, the knob 43 is pressed to the same horizontal plane as the cover plate 42. At this time, the pin sleeve 41 is pressed downward, and the switch pin 413 leaves the pin groove 421. Therefore, the knob 43 can be rotated to drive the second magnetic steel 32 to rotate, so that the magnetic flux between the first magnetic steel 31 and the second magnetic steel 32 changes. When the N pole or S pole of the first magnetic steel 31 and the second magnetic steel 32 are on the same side, the two magnets The magnetic flux is superimposed, and the magnetic attraction force reaches the maximum value. When the N pole or S pole of the first magnetic steel 31 and the second magnetic steel 32 are on different sides, the magnetic flux of the two magnets is offset, and no magnetic attraction force is generated to the outside at this time; the knob 43 can achieve 360-degree rotation. When the angle between the N pole or S pole of the first magnetic steel 31 and the second magnetic steel 32 is in the range of 0-180 degrees, the superposition and offset of the magnetic fluxes generate magnetic attraction forces of different sizes. In this embodiment, the angle between the N pole or S pole of the first magnetic steel 31 and the second magnetic steel 32 can be 60 degrees or 120 degrees, generating 60% and 30% of the maximum magnetic attraction force respectively, and the cover plate 42 is provided with corresponding numerical prompts; a screw 431 is also provided on the knob 3 to facilitate the rotation of the knob 43 with the help of a tool.

[0033] The switch type disk magnetic wheel of the present invention is provided with a first magnetic steel 31 and a second magnetic steel 32 which are stacked and the first magnetic steel 31 is fixed in the magnetic guide disk 1, so that the second magnetic steel 32 is connected with the switch structure 4, and the switch structure 4 includes a pin cover 41, a cover plate 42 and a knob 43, and the second magnetic steel 32 can be linked with the pin cover 41, and a switch pin 413 is provided on the pin cover 41 to cooperate with a pin groove 421 at the bottom of the cover plate 42, and the knob 43 is fixed on the pin cover 41, and a spring 7 is provided inside the pin cover 41 to always force the pin cover 41 and the knob 43 to move outward, so that the switch pin 413 is stably matched in the pin groove 421, and the knob 43 is pressed. The button 43 can make the switch pin 413 leave the pin slot 421. At this time, rotating the knob 43 can change the angle between the N pole or S pole of the second magnetic steel 32 and the first magnetic steel 31, so that the magnetic flux between the two magnetic steels changes, and the magnetic attraction also changes accordingly. When the N pole or S pole of the second magnetic steel 32 and the first magnetic steel 31 are on different sides, the magnetic flux cancels out. At this time, the magnetic wheel does not generate attraction on the outside, so the magnetic wheel can be maintained or repaired; when the second magnetic steel 32 and the N pole or S pole of the first magnetic steel 31 are at different angles, magnetic attraction of different sizes will be generated, thereby increasing the flexibility of the application of the magnetic wheel.

[0034] Finally, it should be noted that the above embodiments only illustrate the technical solutions of the present invention, rather than limiting it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A switch-type disk magnetic wheel, comprising a magnetic guide disk (1); the magnetic guide disk (1) comprises a first magnetic guide disk (11) and a second magnetic guide disk (12) which cooperate with each other, a magnetic isolation ring (2) is sleeved on the inner and outer walls of the first magnetic guide disk (11) and the second magnetic guide disk (12), a connecting piece (5) is fixedly arranged on the left side of the magnetic guide disk (1), and a magnetic steel (3) is arranged inside the magnetic guide disk (1), characterized in that: The magnetic steel (3) comprises a first magnetic steel (31) and a second magnetic steel (32) which are stacked on each other. The diameters of the first magnetic steel (31) and the second magnetic steel (32) are the same as the inner diameters of the first guide disk (11) and the second guide disk (12). The first magnetic steel (31) is close to the first boss (52) of the connecting member (5) and the outer wall is fixed to the inner wall of the first fan ring body (111) and the second fan ring body (121) by glue. A switch structure (4) is arranged on the right side of the second magnetic steel (32). The switch structure (4) comprises a pin sleeve (41), a cover plate (42) and a knob (43) which cooperate with each other from the inside to the outside. The pin sleeve (41) comprises a coaxially arranged bottom plate (411) and a second boss (412). The second magnetic steel (32 ) is fixedly connected to the chassis (411) of the pin sleeve (41) and there is a gap between the bottom of the pin sleeve (41), and switch pins (413) extending outward are arranged on opposite sides of the bottom of the outer wall of the second boss (412); the cover plate (42) is fixed on the second guide disk (12), and a plurality of pin grooves (421) are arranged at intervals on the bottom of the inner wall of the cover plate (42), and the pin grooves (421) are opposite to each other and cooperate with the switch pins (413); the knob (43) is arranged on the inner side of the cover plate (42), and the bottom of the knob (43) is fixedly connected to the pin sleeve (41), and a spring (7) is arranged inside the pin sleeve (41), and one end of the spring (7) abuts on the second magnetic steel (32), and the other end abuts on the bottom of the knob (43).

2. The switchable disc magnetic wheel according to claim 1, characterized in that: The first guide disk (11) and the second guide disk (12) are both annular structures, and the inner sides are recessed inwards to form a first groove and a second groove respectively; a first fan ring body (111) is arranged on the inner side of the lower end of the first guide disk (11) and is parallel to its axis and opposite to the first groove; a second fan ring body (121) is arranged on the inner side of the lower end of the second guide disk (12) and is parallel to its axis and opposite to the second groove; the first guide disk (11) and the second guide disk (12) are arranged on the same axis and are installed in a manner that the first fan ring body (111) and the second fan ring body (121) are opposite to each other; the magnetic isolation ring (2) is sleeved on the outer walls of the first fan ring body (111) and the second fan ring body (121).

3. The switchable disc magnetic wheel according to claim 2, characterized in that: The connecting member (5) comprises a clamping structure (51), a fixed disk (52) and a first boss (53) which are coaxially arranged from the outside to the inside. The clamping structure (51), the fixed disk (52) and the first boss (53) are all annular bodies and are integrally formed. The diameter and thickness of the fixed disk (52) are respectively the same as the inner diameter and thickness of the first groove. The fixed disk (52) is fixed in the first groove. The outer side of the fixed disk (52) is on the same horizontal plane as the first guide disk (11). The first boss (53) is an annular body with the same inner diameter as the first groove. The outer wall of the first boss (53) abuts against the inner wall of the first guide disk (11). The clamping structure (51) is used to connect the equipment that needs to work.

4. The switchable disk magnetic wheel according to claim 2, characterized in that: An isolation air gap is provided between the first guide magnetic disk (11) and the second sector ring body (121) and between the second guide magnetic disk (12) and the first sector ring body (111).

5. The switchable disc magnetic wheel according to claim 2, characterized in that: The arc angles of the first sector ring body (111) and the second sector ring body (121) are both 180 degrees, and the first sector ring body (111) and the second sector ring body (121) are combined to form a complete annular body.

6. The switchable disc magnetic wheel according to claim 1, characterized in that: The second magnetic steel (32) is radially provided with two opposite first mounting holes (321); the bottom of the chassis (411) is provided with a second mounting hole (4111) opposite to the first mounting hole (321); a pin (6) is provided between the second mounting hole (4111) and the first mounting hole (321); the pin (6) enables a certain gap to exist between the pin sleeve (41) and the second magnetic steel (32) and enables linkage.

7. The switchable disk magnetic wheel according to claim 2, characterized in that: The cover plate (42) is an annular body and is fixed in the second groove by screws, and the outer side is in the same plane as the second guide disk (12); the corresponding magnetic attraction force value is also set on the cover plate (42).

8. The switchable disk magnetic wheel according to claim 1, characterized in that: The chassis (411) and the second boss (412) are both annular bodies; the diameter of the second boss (412) is smaller than that of the chassis (411); two opposite third mounting holes (4121) are arranged on the top of the second boss (412); the knob (43) is fixed to the third mounting holes (4121) on the pin sleeve (41) by means of screws; a screw (431) is also arranged on the knob (3).

9. The switchable disk magnetic wheel according to claim 1, characterized in that: The switch pin (413) extends to the edge of the chassis (411).

10. The switchable disc magnetic wheel according to claim 1, characterized in that: The first guide disk (11) and the second guide disk (12) are made of carbon steel; the magnetic steel (3) is made of neodymium iron boron and is cylindrical in shape; the connecting piece (5) is made of aluminum; and the switch structure (4) is made of stainless steel.

Images