Eddy current brake

Abstract

The utility model discloses an eddy current brake which comprises a fixed plate, a brake device is arranged on one side of the fixed plate and comprises a first brake disc, a second brake disc and a movable plate, the first brake disc and the second brake disc are installed on the two sides of the movable plate, and an installation device is arranged on one side of the first brake disc. The mounting device comprises a replacement sleeve, a replacement rod, a movable groove and a clamping block, the movable groove is formed in the inner side of the replacement sleeve, the clamping block is arranged on the outer side of the replacement rod, a positioning mechanism is arranged on the outer side of the replacement sleeve and comprises a control sleeve, a matching plate, a locking sleeve, a locking groove, a matching block, a matching groove, a reset spring and a locking rod, and the matching plate is connected to one side of the control sleeve; the multiple locking grooves are formed in the outer side of the replacement rod, the matching block is arranged on the inner side of the matching plate, the matching grooves are spirally formed in the outer side of the locking sleeve, one end of the locking rod is connected with the outer wall of the replacement sleeve through the reset spring, rapid replacement and stable protection of the brake disc are achieved, and the service life of the movable plate is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of eddy current brakes, and more particularly to an eddy current brake. Background Art

[0002] In the existing technology, eddy current brakes are widely used as an important braking device in various mechanical equipment. However, in actual use, existing eddy current brakes have many technical problems that need to be solved urgently. These problems seriously affect the use effect and maintenance efficiency of the equipment.

[0003] First of all, when traditional electromagnetic eddy current brakes are continuously performing braking operations, their wear rate is relatively serious due to friction. During long-term use, the friction disc will show obvious wear marks due to repeated friction, which not only reduces the braking effect, but also forces users to frequently replace the friction disc. What is more serious is that the continuous friction process will not only aggravate the wear of the friction disc, but also cause irreversible damage to the turntable that cooperates with it. This double wear not only greatly shortens the service life of the turntable, but also increases the maintenance cost and replacement frequency of the equipment, bringing great inconvenience to users.

[0004] In order to solve the above problems, an improved claw-type eddy current brake has appeared on the market. Although this design reduces the degree of wear during the braking process to a certain extent, due to its relatively simple structure, it still has obvious shortcomings in practical applications. Especially after long-term use, when the brake disc needs to be replaced, the disassembly and assembly process is extremely cumbersome. Operators often need to use a variety of professional tools, such as wrenches, screwdrivers, etc., to disassemble and assemble according to a complex sequence of steps. This time-consuming and labor-intensive maintenance process not only reduces work efficiency, but also increases the labor intensity of operators, while also increasing maintenance costs.

[0005] In addition, in order to simplify the replacement process of the brake disc, some manufacturers have adopted some simplified quick-replacement structures in their equipment. However, these structures often pursue simplicity too much, resulting in an imperfect overall mechanism design. This design with insufficient structural strength poses serious safety hazards in actual use. Specifically, during the operation of the brake, especially under high-speed operation or continuous operation, the simplified installation structure is prone to loosening, affecting the braking effect. What is more serious is that the imperfect fixing mechanism may cause the brake disc to fall off accidentally during operation, which will cause damage to the equipment. This structural stability problem seriously restricts the actual application effect of the equipment, requiring users to frequently check and adjust during use, increasing the maintenance burden. Utility Model Content

[0006] In view of the problems existing in the prior art, the present invention provides an eddy current brake to solve the technical problems mentioned in the background technology.

[0007] Technical Solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an eddy current brake, comprising a fixed plate, characterized in that: a braking device is provided on one side of the fixed plate, the braking device comprises a first brake disc, a second brake disc and a movable plate, the first brake disc and the second brake disc are respectively detachably mounted on both sides of the movable plate, a mounting device is provided on one side of the first brake disc, the mounting device comprises a replacement sleeve, a replacement rod, a movable groove and a clamping block, the replacement sleeve is detachably mounted on the outside of the replacement rod, the movable groove is opened on the inside of the replacement sleeve, the clamping block is fixedly arranged on the outside of the replacement rod, and a positioning mechanism is provided on the outside of the replacement sleeve. The positioning mechanism includes a control sleeve, a matching plate, a locking sleeve, a locking groove, a matching block, a matching groove, a return spring and a locking rod. The control sleeve is rotatably sleeved on the outside of the replacement sleeve, the matching plate is fixedly connected to one side of the control sleeve, the locking sleeve is slidingly sleeved on the outside of the replacement sleeve, a plurality of locking grooves are opened on the outside of the replacement rod, the matching block is fixedly arranged on the inside of the matching plate, and the matching blocks are spirally arranged on the inside of the matching plate, the matching groove is spirally opened on the outside of the locking sleeve, the matching block is slidably arranged in the matching groove, one end of the locking rod is connected to the outer wall of the replacement sleeve through a return spring, and the other end of the locking rod is engaged with the locking groove.

[0009] The present invention is further configured such that mounting holes are provided on both the first brake disc and the second brake disc.

[0010] The present invention is further configured such that a guide groove is provided on the inner side of the replacement sleeve.

[0011] The present invention is further configured such that a slide rail is fixedly provided on the outer side of the replacement sleeve, and a slide groove is correspondingly provided on the inner side of the locking sleeve, and the slide groove is adapted to the slide rail.

[0012] The present invention is further configured such that an electromagnet is provided on one side of one of the fixing plates, and a power line is connected to the other side of the fixing plate.

[0013] The utility model is further configured such that a fixing sleeve is connected to one side of the other fixing plate, the fixing sleeve is provided with a connecting disk at one side, a brake rod is fixedly connected to the other side of the connecting disk, the brake rod is made of iron material, and brake grooves are provided on the first brake disk and the second brake disk.

[0014] The utility model is further configured such that a rubber column is connected to one side of the second brake disc, and a slot is provided on the movable plate and the first brake disc. The cooperation between the rubber column and the slot realizes a linkage effect among the second brake disc, the first brake disc and the movable plate.

[0015] The utility model is further configured such that a connecting sleeve is connected to one side of the connecting disk, a limit block is fixedly provided on the outside of the connecting sleeve, a limit groove is correspondingly provided on the inside of the fixed sleeve, and the limit groove is adapted to the limit block, a connecting spring is movably provided in the connecting sleeve, and the connecting disk is connected to one of the fixed plates through the connecting spring. The configuration of the above components realizes the limitation of the brake rod, thereby achieving a braking effect. Beneficial effects

[0016] Compared with the prior art, the present invention provides an eddy current brake with the following beneficial effects:

[0017] 1. The braking device adopts a double brake disc structure, which is combined with the design of components such as the movable plate to achieve double-sided cooperation of the brake disc. Braking is achieved through the cooperation of the brake rod, electromagnet and brake groove, effectively avoiding the wear problem caused by friction in traditional brakes. At the same time, the cooperation between the rubber column and the groove further enhances the structural stability, greatly prolongs the service life of the equipment and reduces maintenance costs. It effectively avoids the wear of the movable plate caused by traditional friction brakes and ensures the stability of the brake rod, thereby significantly extending the service life of the equipment and reducing maintenance costs.

[0018] 2. The installation device forms a complete set of quick replacement mechanism through the detachable connection between the replacement sleeve and the replacement rod, as well as the flexible cooperation of the clamping block and the movable groove. Combined with the guiding function of the guide groove, the disassembly and assembly process of the brake disc becomes simple and quick. The replacement operation can be completed without complex tools, which significantly improves maintenance efficiency and reduces the labor intensity of operators.

[0019] 3. The positioning mechanism forms a multi-insurance locking system through the coordinated action of the control sleeve, matching plate, locking sleeve and locking rod, combined with the precise fit of the spirally arranged matching blocks and matching grooves, as well as the limit design of the slide rails and slide grooves. In particular, the setting of the return spring ensures that the locking rod can return to its position and lock reliably, which completely solves the hidden dangers of loosening and falling off in traditional quick-change structures, ensures the stability and safety of the equipment during use, and enables the equipment to operate stably for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of an eddy current brake in the present utility model;

[0021] Figure 2 It is a schematic cross-sectional view of the structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the dispersed structure of the first brake disc, the second brake disc and the movable plate in the present invention;

[0023] Figure 4 It is a cross-sectional structural diagram of the installation device and positioning mechanism in the present utility model;

[0024] Figure 5 for Figure 4 Schematic diagram of the local enlarged structure at A in the middle;

[0025] Figure 6 This is a schematic cross-sectional view of the mounting device and positioning mechanism at a second angle in the present invention.

[0026] In the figure: 1. Fixed plate; 2. First brake disc; 3. Second brake disc; 4. Movable plate; 5. Replacement sleeve; 6. Replacement rod; 7. Movable groove; 8. Clamping block; 9. Control sleeve; 10. Matching plate; 11. Locking sleeve; 12. Locking groove; 13. Matching block; 14. Matching groove; 15. Return spring; 16. Locking rod; 17. Mounting hole; 18. Guide groove; 19. Slide rail; 20. Slide groove; 21. Electromagnet; 22. Power cord; 23. Fixed sleeve; 24. Connecting plate; 25. Brake rod; 26. Brake groove; 27. Rubber column; 28. Clamping slot; 29. ​​Connecting sleeve; 30. Limit block; 31. Limit groove; 32. Connecting spring. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0029] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned direction words are not used to limit the present invention.

[0030] See also Figures 1-6, an eddy current brake, including a fixed plate 1, characterized in that: a braking device is provided on one side of the fixed plate 1, the braking device includes a first brake disc 2, a second brake disc 3 and a movable plate 4, the first brake disc 2 and the second brake disc 3 are respectively detachably mounted on both sides of the movable plate 4, a mounting device is provided on one side of the first brake disc 2, the mounting device includes a replacement sleeve 5, a replacement rod 6, a movable groove 7 and a clamping block 8, the replacement sleeve 5 is detachably sleeved on the outside of the replacement rod 6, the movable groove 7 is opened on the inside of the replacement sleeve 5, the clamping block 8 is fixedly arranged on the outside of the replacement rod 6, and a positioning mechanism is provided on the outside of the replacement sleeve 5, the positioning mechanism includes a control sleeve 9, a matching plate 10, a locking sleeve 11, a locking Slot 12, matching block 13, matching slot 14, return spring 15 and locking rod 16, the control sleeve 9 is rotatably sleeved on the outside of the replacement sleeve 5, the matching plate 10 is fixedly connected to one side of the control sleeve 9, the locking sleeve 11 is slidingly sleeved on the outside of the replacement sleeve 5, multiple locking slots 12 are opened on the outside of the replacement rod 6, the matching block 13 is fixedly set on the inside of the matching plate 10, and the matching blocks 13 are spirally arranged on the inside of the matching plate 10, the matching slot 14 is spirally opened on the outside of the locking sleeve 11, the matching block 13 is slidably set in the matching slot 14, one end of the locking rod 16 is connected to the outer wall of the replacement sleeve 5 through the return spring 15, and the other end of the locking rod 16 is engaged in the locking slot 12.

[0031] Both the first brake disc 2 and the second brake disc 3 are provided with mounting holes 17 .

[0032] A guide groove 18 is provided on the inner side of the replacement sleeve 5 .

[0033] A slide rail 19 is fixedly provided on the outer side of the replacement sleeve 5 , and a slide groove 20 is correspondingly provided on the inner side of the locking sleeve 11 , and the slide groove 20 is adapted to the slide rail 19 .

[0034] In this embodiment, when the first brake disc 2 and the second brake disc 3 need to be replaced, the control sleeve 9 is first rotated. The control sleeve 9 will drive the matching block 13 to rotate through the matching plate 10 connected to one side, and then the matching block 13 will slide along the matching groove 14. Due to the spiral structure design of the matching groove 14 and the adaptability of the matching block 13, and at the same time, the slide rail 19 and the slide groove 20 cooperate to limit the locking sleeve 11 to prevent the locking sleeve 11 from rotating. Then the locking sleeve 11 will drive the matching groove 14 opened on the outside to slide along the slide rail 19 and the slide groove 20, and then the outer end of the locking rod 16 will lose the limit of the inner wall of the locking sleeve 11, and then the replacement rod 6 is rotated, and then the replacement rod 6 will drive the locking groove 12 opened on the outside to rotate, and then the locking groove 12 side The wall will squeeze one end of the locking rod 16. Due to the rounded corner treatment at the edge of the side wall of the locking groove 12 and the rounded corner structure design at the end of the locking rod 16, one end of the locking rod 16 will slide out of the locking groove 12, and the other end of the locking rod 16 will drive the return spring 15 to stretch, and at the same time the replacement rod 6 will drive the clamping block 8 to rotate along the movable groove 7. When the clamping block 8 rotates to the position corresponding to the guide groove 18, the replacement rod 6 and the clamping sleeve are pulled to both sides respectively, and the replacement rod 6 and the clamping sleeve can be removed. Then the return spring 15 will drive the locking rod 16 to reset, and then the first brake disc 2 and the second brake disc 3 are respectively removed from both sides of the movable plate 4 for replacement. When the first brake disc 2 and the second brake disc 3 are replaced, first install the first brake disc 2 on the movable plate 4. Then, the rubber column 27 provided on one side of the second brake disc 3 passes through the slot 28, and then the replacement rod 6 passes through the mounting hole 17 provided on the first brake disc 2 and the second brake disc 3 from one side of the first brake disc 2, and then the replacement sleeve 5 is fitted to the outside of the replacement rod 6 from the other side, and the block 8 provided on the outside of the replacement rod 6 corresponds to the position of the guide groove 18 provided on the inner side of the sleeve, so that the block 8 slides into the guide groove 18, and then the chamfer provided at one end of the replacement rod 6 pushes one end of the locking rod 16, so that the locking rod 16 drives the return spring 15 to stretch again. When the locking rod 16 and the locking sleeve 11 press the first brake disc 2 and the second brake disc 3, the replacement rod 6 is rotated in the opposite direction so that the replacement The rod 6 drives the card block 8 to rotate and reset along the movable groove 7 again, and then the return spring 15 drives the locking rod 16 to reset, so that one end of the locking rod 16 is inserted into the original locking groove 12 again. At this time, the rotation of the replacement rod 6 is stopped, and then the control sleeve 9 is rotated in the opposite direction. Then the control sleeve 9 drives the matching plate 10 to rotate and reset, and then the locking sleeve 11 is slid and reset along the slide rail 19 and the slide groove 20 through the cooperation of the matching block 13 and the matching groove 14. When the locking sleeve 11 is reset, the inner wall of the locking sleeve 11 limits the outer end of the locking rod 16 again, thereby effectively preventing the movement of the locking rod 16, so that the locking rod 16 and the locking groove 12 cooperate to form a stable limit for the card rod and the card sleeve, thereby avoiding accidental unlocking, thereby effectively ensuring the stability of the installation structure.

[0035] See also Figure 1-4 As a further embodiment of the device as a whole: an electromagnet 21 is provided on one side of one of the fixing plates 1, and a power line 22 is connected to the other side of the fixing plate 1.

[0036] A fixing sleeve 23 is connected to one side of the other fixing plate 1, and a connecting disc 24 is provided on the fixing sleeve 23. A brake rod 25 is fixedly connected to the other side of the connecting disc 24. The brake rod 25 is made of iron. A brake groove 26 is provided on the first brake disc 2 and the second brake disc 3.

[0037] A rubber column 27 is connected to one side of the second brake disc 3 , and a clamping groove 28 is formed on both the movable plate 4 and the first brake disc 2 .

[0038] A connecting sleeve 29 is connected to one side of the connecting disk 24, and a limit block 30 is fixed on the outside of the connecting sleeve 29. A limit groove 31 is correspondingly provided on the inside of the fixed sleeve 23, and the limit groove 31 is adapted to the limit block 30. A connecting spring 32 is movably provided in the connecting sleeve 29, and the connecting disk 24 is connected to one of the fixed plates 1 through the connecting spring 32.

[0039] More specifically, when the device needs to be used, first power is connected through the power cord 22, so that the electromagnet 21 has magnetism, and then the brake rod 25 is attracted by the electromagnet 21, and then the brake rod 25 will drive the connecting disk 24 to move, and then the connecting disk 24 will drive the connecting spring 32 to stretch, and the connecting disk 24 will drive the connecting sleeve 29 to slide, so that the connecting sleeve 29 slides out of the fixed sleeve 23, and at the same time the connecting sleeve 29 will drive the limiting block 30 set on the outside to slide along the limiting groove 31 opened on the inner side of the fixed sleeve 23, and then the brake rod 25 will pass through the brake groove 26 opened on the first brake disc 2 and the second brake disc 3 in turn, and then one end of the brake rod 25 will resist the electromagnet 21. Due to the setting of the limiting block 30 and the limiting groove 31, the connecting disc 24 and the connecting sleeve 29 will not rotate, so the brake rod 25 will not rotate either. This prevents the first brake disc 2 and the second brake disc 3 from rotating, and then the rubber column 27 provided on one side of the second brake disc 3 cooperates with the groove 28 opened on the movable plate 4 and the groove 28 opened on the first brake disc 2 to form a limit on the movable plate 4, thereby realizing the cooperation of the movable plate 4. This braking method can effectively reduce the wear on both sides of the movable plate 4, thereby reducing the replacement of the movable plate 4. When braking is not needed, the power is turned off, and then the electromagnet 21 loses its magnetism, and then the connecting spring 32 will drive the connecting sleeve 29 and the connecting disc 24 to reset, thereby resetting the brake rod 25, so that the brake rod 25 no longer cooperates with the brake groove 26 for braking. After a period of use, the first brake disc 2 and the second brake disc 3 will be worn due to the material, and then the first brake disc 2 and the second brake disc 3 can be replaced.

[0040] In summary, when the overall device is in use or running: when the first brake disc 2 and the second brake disc 3 need to be replaced, the control sleeve 9 is first rotated, and the control sleeve 9 will drive the matching block 13 to rotate through the matching plate 10 connected to one side, and then the matching block 13 will slide along the matching groove 14. Due to the spiral structure design of the matching groove 14 and the adaptability of the matching block 13, and at the same time, the slide rail 19 and the slide groove 20 cooperate to limit the locking sleeve 11 to prevent the locking sleeve 11 from rotating, and then the locking sleeve 11 will drive the matching groove 14 opened on the outside to slide along the slide rail 19 and the slide groove 20, and then the outer end of the locking rod 16 will lose the limit of the inner wall of the locking sleeve 11, and then the replacement rod 6 is rotated, and then the replacement rod 6 will drive the locking groove 12 opened on the outside When the locking rod 16 is in the unlocking state, the first and second brake discs 2 and 3 are removed from the movable plate 4. When the first and second brake discs 2 and 3 are replaced, the first and second brake discs 3 are removed from the movable plate 4. When the first and second brake discs 2 and 3 are replaced, the first and second brake discs 3 are removed from the movable plate 4. When the first and second brake discs 2 and 3 are replaced, the first and second brake discs 2 and 3 are removed from the movable plate 4. When the first and second brake discs 2 and 3 are replaced, the first and second brake discs 2 and 3 are removed from the movable plate 4. The brake disc 2 is installed on one side of the movable plate 4, and the movable plate 4 is aligned with the slot 28 opened on the first brake disc 2, and then the rubber column 27 set on one side of the second brake disc 3 is passed through the slot 28, and then the replacement rod 6 is passed through the mounting hole 17 opened on the first brake disc 2 and the second brake disc 3 from one side of the first brake disc 2, and then the replacement sleeve 5 is fitted to the outside of the replacement rod 6 from the other side, and the block 8 set on the outside of the replacement rod 6 is positioned corresponding to the guide groove 18 opened on the inner side of the sleeve, so that the block 8 slides into the guide groove 18, and then the chamfer set at one end of the replacement rod 6 will push one end of the locking rod 16, so that the locking rod 16 drives the return spring 15 to stretch again. When the locking rod 16 and the locking sleeve 11 press the first brake disc 2 and the second brake disc 3 , rotate the changing rod 6 in the opposite direction, so that the changing rod 6 drives the card block 8 to rotate and reset along the movable groove 7 again, and then the return spring 15 drives the locking rod 16 to reset, so that one end of the locking rod 16 is inserted into the original locking groove 12 again. At this time, stop rotating the changing rod 6, and then rotate the control sleeve 9 in the opposite direction, and then the control sleeve 9 drives the matching plate 10 to rotate and reset, and then the locking sleeve 11 is slid and reset along the slide rail 19 and the slide groove 20 through the cooperation of the matching block 13 and the matching groove 14. When the locking sleeve 11 is reset, the inner wall of the locking sleeve 11 limits the outer end of the locking rod 16 again, thereby effectively preventing the movement of the locking rod 16, so that the locking rod 16 and the locking groove 12 cooperate to form a stable limit for the card rod and the card sleeve, thereby preventing accidental unlocking.This effectively ensures the stability of the installation structure.

[0041] When the device needs to be used, first connect the power through the power cord 22, so that the electromagnet 21 has magnetism, and then the brake rod 25 is attracted by the electromagnet 21, and then the brake rod 25 will drive the connecting disk 24 to move, and then the connecting disk 24 will drive the connecting spring 32 to stretch, and the connecting disk 24 will drive the connecting sleeve 29 to slide, so that the connecting sleeve 29 slides out of the fixing sleeve 23, and at the same time the connecting sleeve 29 will drive the limiting block 30 set on the outside to slide along the limiting groove 31 opened on the inner side of the fixing sleeve 23, and then the brake rod 25 will pass through the brake groove 26 opened on the first brake disc 2 and the second brake disc 3 in turn, and then one end of the brake rod 25 will resist the electromagnet 21. Due to the setting of the limiting block 30 and the limiting groove 31, the connecting disc 24 and the connecting sleeve 29 will not rotate, so the brake rod 25 will not rotate, thereby making The first brake disc 2 and the second brake disc 3 will not rotate, and then the rubber column 27 provided on one side of the second brake disc 3 cooperates with the groove 28 opened on the movable plate 4 and the groove 28 opened on the first brake disc 2 to form a limit on the movable plate 4, thereby realizing the cooperation of the movable plate 4. This braking method can effectively reduce the wear on both sides of the movable plate 4, thereby reducing the replacement of the movable plate 4. When braking is not needed, the power is turned off, and then the electromagnet 21 loses its magnetism, and then the connecting spring 32 will drive the connecting sleeve 29 and the connecting disc 24 to reset, thereby resetting the brake rod 25, so that the brake rod 25 no longer cooperates with the brake groove 26 for braking. After a period of use, the first brake disc 2 and the second brake disc 3 will be worn due to the material, and then the first brake disc 2 and the second brake disc 3 can be replaced.

[0042] In all the schemes mentioned above, the connection between the two components can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which will not be listed here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An eddy current brake, comprising a fixed plate (1), characterized in that: A braking device is provided on one side of the fixed plate (1), and the braking device includes a first brake disc (2), a second brake disc (3) and a movable plate (4). The first brake disc (2) and the second brake disc (3) are installed on both sides of the movable plate (4). A mounting device is provided on one side of the first brake disc (2), and the mounting device includes a replacement sleeve (5), a replacement rod (6), a movable groove (7) and a clamping block (8). The movable groove (7) is opened on the inner side of the replacement sleeve (5), and the clamping block (8) is provided on the outer side of the replacement rod (6). A positioning mechanism is provided on the outer side of the replacement sleeve (5), and the positioning mechanism includes a control sleeve (9), a matching plate (10), a locking sleeve (11), A locking groove (12), a matching block (13), a matching groove (14), a return spring (15) and a locking rod (16); a control sleeve (9) is sleeved on the outside of the replacement sleeve (5); a matching plate (10) is connected to one side of the control sleeve (9); a locking sleeve (11) is sleeved on the outside of the replacement sleeve (5); a plurality of locking grooves (12) are provided on the outside of the replacement rod (6); a matching block (13) is provided on the inside of the matching plate (10); a matching groove (14) is spirally provided on the outside of the locking sleeve (11); one end of the locking rod (16) is connected to the outer wall of the replacement sleeve (5) through the return spring (15); and the other end of the locking rod (16) is engaged with the locking groove (12).

2. The eddy current brake according to claim 1, characterized in that: Both the first brake disc (2) and the second brake disc (3) are provided with mounting holes (17).

3. The eddy current brake according to claim 2, characterized in that: A guide groove (18) is provided on the inner side of the replacement sleeve (5).

4. The eddy current brake according to claim 1, wherein: A slide rail (19) is fixedly provided on the outside of the replacement sleeve (5), and a slide groove (20) is correspondingly provided on the inside of the locking sleeve (11), and the slide groove (20) is adapted to the slide rail (19).

5. An eddy current brake according to any one of claims 1 to 4, characterized in that: An electromagnet (21) is provided on one side of the fixing plate (1), and a power line (22) is connected to the other side of the fixing plate (1).

6. The eddy current brake according to claim 5, characterized in that: another A fixing sleeve (23) is connected to one side of the fixing plate (1), a connecting disc (24) is provided on one side of the fixing sleeve (23), a brake rod (25) is fixedly connected to the other side of the connecting disc (24), and the brake rod (25) is made of iron. A brake groove (26) is provided on both the first brake disc (2) and the second brake disc (3).

7. The eddy current brake according to claim 6, characterized in that: A rubber column (27) is connected to one side of the second brake disc (3), and a clamping groove (28) is provided on both the movable plate (4) and the first brake disc (2).

8. The eddy current brake according to claim 7, characterized in that: A connecting sleeve (29) is connected to one side of the connecting disk (24), a limiting block (30) is fixedly provided on the outer side of the connecting sleeve (29), a limiting groove (31) is correspondingly provided on the inner side of the fixing sleeve (23), and the limiting groove (31) is adapted to the limiting block (30), a connecting spring (32) is movably provided in the connecting sleeve (29), and the connecting disk (24) is connected to one of the fixing plates (1) via the connecting spring (32).

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