Disassembling and assembling tool for variable-pitch electromagnetic brake

Abstract

The invention discloses a disassembling and assembling tool for a variable-pitch electromagnetic brake. The disassembling and assembling tool aims at solving the problem that an existing tool lacks fixation and is prone to loosening. The two ends of the C-shaped supporting assembly are connected with a base assembly and a pressing mechanism respectively, the base assembly is provided with supporting legs capable of being opened and closed, the supporting legs and the pressing mechanism are coaxially arranged, and a screw assembly is arranged on the edge of the pressing mechanism. The base is provided with a first positioning column, the mounting seat is provided with a second positioning column, and the screw assembly can slide and is provided with a pressure plate. The tool can replace a plurality of G-shaped clamps, operation is simplified, stability is improved, loosening and damage of parts are avoided, and the tool is suitable for disassembly, assembly and maintenance of the variable-pitch electromagnetic brake.

Description

Technical Field

[0001] The invention relates to the technical field of brake disassembly and assembly tooling, in particular to a disassembly and assembly tool for a variable pitch electromagnetic brake. Background Art

[0002] Brakes used for wind turbine pitch control require regular disassembly and maintenance to clean up iron filings and dust generated by internal wear to ensure effective braking. When disassembling existing Mayer brakes, the armature must first be compressed to separate it from the two screws by a certain distance before it can be unscrewed with a screwdriver. However, due to the lack of specialized tools, multiple G-clamps are required to compress the armature, making the operation cumbersome, time-consuming, and labor-intensive. Furthermore, the multiple G-clamps are not fixed together, resulting in poor stability and easy loosening, which can lead to disassembly failure or personal injury. This problem urgently needs to be addressed. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that the existing disassembly tools lack fixation and are prone to loosening.

[0004] In order to solve the above technical problems, the technical solution adopted in the present invention is: a disassembly and assembly tool for a variable pitch electromagnetic brake, comprising a C-shaped support assembly, the support assembly is arranged vertically, and the two ends are respectively connected to a base assembly and a pressing mechanism for clamping the brake, the bottom of the base assembly is provided with a retractable support leg, the base assembly and the pressing mechanism are coaxially arranged, and a screw assembly is provided at the edge of the pressing mechanism for vertical movement.

[0005] Preferably, the legs are arranged to rotate horizontally, the legs are symmetrically distributed on both sides of the base assembly, and a damping plate is provided between the base assembly and the legs.

[0006] Preferably, the base assembly includes a base arranged for vertical rotation, and a first positioning column adapted to the circular hole at the bottom of the brake is provided at the top of the base.

[0007] Preferably, the bottom of the support assembly is threadedly connected with a locking screw for clamping the base for rotation limitation.

[0008] Preferably, the bottom of the support assembly is provided with a mounting hole for the base, the inner top and inner bottom of the mounting groove are both provided with a first bearing that cooperates with the base, the bottom end of the base is provided with a retaining ring, and the top end of the base is provided with an annular protrusion, and the outer diameters of the retaining ring and the annular protrusion are both larger than the inner diameter of the mounting hole.

[0009] Preferably, the top end of the support assembly is fixedly connected with a threaded sleeve, and the top end of the pressing mechanism is vertically fixed with a pressing screw, which is threadably connected to the threaded sleeve.

[0010] Preferably, the support assembly includes a disc-shaped mounting seat, the edge of which is fixedly provided with a radial groove along the radial direction, the screw assembly is slidably connected in the radial groove, and the radial groove is distributed at equal angles around the axis of the mounting seat.

[0011] Preferably, a second positioning column adapted to the circular hole at the top end of the brake is coaxially fixedly provided at the bottom end of the mounting seat.

[0012] Preferably, the screw assembly includes a sleeve slidingly connected to the radial groove and a screw threadedly connected to the sleeve, nuts are provided at both ends of the sleeve, and the two nuts are respectively fitted with the top wall and bottom wall of the radial groove, and a spherical connecting head is fixedly provided at the bottom end of the screw, and a pressure plate is rotatably connected to the connecting head, and the bottom end radius of the pressure plate is larger than the top end radius.

[0013] Preferably, the top end of the screw is provided with a connection end for connecting an electric wrench.

[0014] The present invention provides a disassembly and assembly tool for a variable pitch electromagnetic brake, which has the following beneficial effects.

[0015] 1. The tool utilizes a C-shaped support assembly with a coaxially arranged base assembly and a downward pressure mechanism. The threaded engagement of the downward pressure screw and the threaded sleeve directly applies axial pressure to the brake armature, replacing the cumbersome operation of traditional multiple G-clamps. The electric wrench connection at the top of the screw assembly supports mechanized drive, further reducing labor consumption, making the disassembly and assembly process more efficient and significantly shortening maintenance time.

[0016] 2. The support assembly features an integrated C-shaped structure. The coaxial design of the base assembly and the downward pressure mechanism ensures balanced force, avoiding the force offset caused by the dispersed arrangement of traditional G-clamps. The damping plate legs on both sides of the base assembly provide stable support on a flat surface, and the screw assembly is positioned via radial slots and locked with a nut, effectively preventing components from loosening during operation. This structurally eliminates the risk of disassembly and assembly failure or personal injury due to tool failure.

[0017] 3. The first locating post of the base assembly fits into the circular hole at the bottom of the brake, while the second locating post at the bottom of the mounting base corresponds to the circular hole at the top of the brake. This dual positioning ensures the coaxiality of the tool and the brake, preventing lateral forces generated when compressing the armature and causing component deformation. The spherical connector at the bottom of the screw assembly mates with the pressure plate to adapt to the angle of the armature surface, preventing damage to the armature due to excessive local pressure and protecting the brake's delicate structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a structural diagram of the variable pitch electromagnetic brake.

[0019] Figure 2 It is a front view of an embodiment of the present invention.

[0020] Figure 3 for Figure 2 Schematic diagram of the structure in direction A.

[0021] Figure 4 for Figure 2 Schematic diagram of the structure in the B direction.

[0022] Figure 5 It is a structural diagram of the support component in the storage state.

[0023] Figure 6 This is the front view of the disassembly and assembly tool when clamping the brake.

[0024] Figure 7 Schematic diagram of the internal structure of the screw assembly.

[0025] In the figure: 10, brake; 11, armature; 12, limit screw; 100, support assembly; 110, support frame; 111, screw sleeve; 120, support leg; 200, base assembly; 210, base; 211, first positioning column; 212, locking screw; 220, first bearing; 230, retaining ring; 300, pressing mechanism; 310, pressing screw; 320, mounting seat; 321, radial slide groove; 322, second positioning column; 330, screw assembly. DETAILED DESCRIPTION like Figure 1-7 The present invention provides a disassembly and assembly tool for a variable pitch electromagnetic brake, comprising a C-shaped support assembly 100. The support assembly 100 is arranged vertically, and its two ends are respectively connected to a base assembly 200 for clamping the brake 10 and a pressing mechanism 300. The bottom of the base assembly 200 is provided with a retractable support leg 120. The base assembly 200 and the pressing mechanism 300 are arranged coaxially. A screw assembly 330 is vertically movable at the edge of the pressing mechanism 300.

[0026] The base assembly 200 serves as the bottom support structure to ensure that the support assembly 100 is in a vertical state. When disassembling and assembling the brake 10, the brake 10 is placed on the base assembly 200 and the pressing mechanism 300 is adjusted downward so that the pressing mechanism 300 moves toward the base assembly 200. The base assembly 200 and the pressing mechanism 300 are used to clamp the brake 10 horizontally. Thereafter, the screw assembly 330 is rotated so that the bottom surface of the screw assembly 330 is fitted with the edge of the armature 11 inside the brake 10. The armature 11 is pressed down by adjusting the pressing mechanism 300 to move downward. After the armature 11 moves downward and separates from the limit screw 12, the limit screw 12 can be removed.

[0027] like Figure 2 and Figure 3 The support assembly 100 is provided with four support legs 120, which are horizontally rotatable arranged on both sides of the base assembly 200, and a damping piece is arranged between the base assembly 200 and the support legs 120. The support assembly 100 comprises a support frame 110, which has a cross-section in the shape of an I-beam and has sufficient structural strength; the top ends of the support legs 120 are rotatably connected to both sides of the support frame 110; four support legs 120 are arranged in total; and the damping piece enables the support legs 120 to be automatically locked in an angle during rotation, so that the support legs 120 can be stably arranged in the storage state.

[0028] As shown in Figure 2 The base assembly 200 comprises a vertically rotatable base 210, which is provided at the top end with a first positioning column 211 adapted to the circular hole at the bottom of the brake 10. The first positioning column 211 is used for positioning the brake 10, so as to ensure that the brake 10 and the base assembly 200 are coaxial; and the rotatably arranged base 200 enables the brake 10 to be rotated by the staff through the rotation of the base 210 when the limiting screw 12 on the brake 10 is disassembled, without the need to change the position, so as to improve the work efficiency.

[0029] As shown in Figure 2 and Figure 3 The bottom of the support assembly 100 is threadedly connected with a locking screw 212 used for clamping the base 210 to limit the rotation. During the disassembly of the limiting screw 12, the locking screw 212 is rotated by a wrench or other tools, and at this time, the brake 10 needs to be ensured to be in a fixed state to avoid affecting the disassembly due to the rotation of the brake 10. The locking screw 212 comprises a screw at the end and a crank structure fixedly connected to the end of the screw, so as to facilitate the manual rotation of the locking screw 212 by the staff.

[0030] As shown in Figure 2 The bottom of the support assembly 100 is provided with a mounting hole of the base 210, and the inner top and inner bottom of the mounting groove are both provided with a first bearing 220 matched with the base 210; the bottom end of the base 210 is sleeved with a check ring 230; and the top end of the base 210 is provided with an annular protrusion, and the outer diameters of the check ring 230 and the annular protrusion are both greater than the inner diameter of the mounting hole. The rotation of the base 210 is supported by the two first bearings 220, the mounting groove is arranged at the bottom of the base 210, the check ring 230 is clamped in the mounting groove, and the base 210 is supported and limited by the check ring 230 and the annular protrusion, so that the base 210 is arranged in the mounting hole.

[0031] As shown in Figure 2As shown. The top of the support assembly 100 is fixedly connected with a screw sleeve 111, and the top of the pressing mechanism 300 is vertically fixed with a pressing screw 310, which is threadedly connected to the screw sleeve 111. When the pressing mechanism 300 is lowered to clamp the brake 10, the pressing screw 310 is rotated, and the pressing screw 310 drives the pressing mechanism 300 to move downward. In addition, a connecting seat is installed at the bottom end of the pressing screw 310, and a circular hole is provided in the center of the mounting seat 320. A second bearing is provided in the circular hole. The connecting seat is rotatably connected to the mounting seat 320 through the second bearing. In this way, when the pressing screw 310 is rotated to move downward, the mounting seat 320 moves vertically downward without rotating.

[0032] like Figure 3 As shown. The support assembly 100 includes a disc-shaped mounting seat 320, with radial grooves 321 fixedly disposed radially along the edge of the mounting seat 320. The screw assembly 330 is slidably connected within the radial grooves 321, which are distributed at equal angles around the axis of the mounting seat 320. The provision of the radial grooves 321 enables the screw assembly 330 to move radially relative to the mounting seat 320, allowing it to adapt to brakes 10 of different sizes or selectively contact and press down on different positions of the armature 11. Triangular reinforcing ribs are provided at the connection between the radial grooves 321 and the mounting seat 320 to enhance the structural strength of the radial grooves 321.

[0033] like Figure 4 As shown, a second positioning post 322 is coaxially fixed to the bottom end of the mounting base 320 and is adapted to fit within the circular hole at the top end of the brake 10. The bottom edge of the second positioning post 322 is chamfered, allowing it to be smoothly inserted into the center hole of the brake 10 during the downward pressure of the pressing mechanism 300, achieving positioning for installation.

[0034] like Figure 5 and Figure 7 As shown. The screw assembly 330 includes a sleeve slidably connected to the radial slot 321 and a screw threadedly connected to the sleeve. Nuts are provided at both ends of the sleeve, and the two nuts respectively engage the top and bottom walls of the radial slot 321. The bottom end of the screw is fixedly provided with a spherical connector, and a pressure plate is rotatably connected to the connector. The bottom radius of the pressure plate is larger than the top radius. The spherical connector at the bottom end of the screw can adjust the inclination angle of the pressure plate to ensure effective contact between the bottom surface of the pressure plate and the surface of the armature 11.

[0035] As a preferred embodiment of the present application, the top end of the screw rod is provided with a connecting end for connecting an electric wrench. When the screw rod assembly 330 is in contact with the top edge of the armature 11, the bottom surface of the second positioning column 322 is required to be in close contact with the top surface of the armature 11, and then when the pressing screw rod 310 is rotated, the armature 11 can be stably pressed by the second positioning column 322 and the screw rod assembly 330. The top end of the pressing screw rod 310 is provided with a square hole coaxial with the pressing screw rod 310 for connecting an electric wrench.

Claims

1. A disassembly and assembly tool for a pitch electromagnetic brake, characterized by: The invention comprises a C-shaped support assembly (100), wherein the support assembly (100) is arranged vertically and is respectively connected to a base assembly (200) for clamping a brake (10) and a pressing mechanism (300) at both ends, wherein a foldable support leg (120) is provided at the bottom of the base assembly (200), the base assembly (200) and the pressing mechanism (300) are coaxially arranged, and a screw assembly (330) is provided at the edge of the pressing mechanism (300) for vertical movement.

2. A disassembly and assembly tool for a pitch electromagnetic brake according to claim 1, characterized in that: The supporting legs (120) are arranged to rotate horizontally, the supporting legs (120) are symmetrically distributed on both sides of the base assembly (200), and a damping plate is provided between the base assembly (200) and the supporting legs (120).

3. The disassembly and assembly tool for a pitch electromagnetic brake according to claim 1, characterized in that: The base assembly (200) comprises a base (210) arranged to rotate vertically, and a first positioning column (211) adapted to the circular hole at the bottom of the brake (10) is provided at the top of the base (210).

4. A disassembly and assembly tool for a pitch electromagnetic brake according to claim 3, characterized in that: The bottom of the support assembly (100) is threadedly connected to a locking screw (212) for clamping the base (210) to limit rotation.

5. The disassembly and assembly tool for a pitch electromagnetic brake according to claim 3, characterized in that: The bottom of the support assembly (100) is provided with a mounting hole for the base (210), the inner top and inner bottom of the mounting groove are both provided with a first bearing (220) that cooperates with the base (210), the bottom end of the base (210) is sleeved with a retaining ring (230), the top end of the base (210) is provided with an annular protrusion, and the outer diameters of the retaining ring (230) and the annular protrusion are both larger than the inner diameter of the mounting hole.

6. A disassembly and assembly tool for a pitch electromagnetic brake according to claim 1, characterized in that: The top end of the support assembly (100) is fixedly connected to a threaded sleeve (111), and the top end of the pressing mechanism (300) is vertically fixedly provided with a pressing screw (310), which is threadably connected to the threaded sleeve (111).

7. A disassembly and assembly tool for a pitch electromagnetic brake according to claim 6, characterized in that: The support assembly (100) includes a disc-shaped mounting seat (320), the edge of the mounting seat (320) is fixedly provided with a radial slide groove (321) along the radial direction, the screw assembly (330) is slidably connected in the radial slide groove (321), and the radial slide groove (321) is distributed at equal angles around the axis of the mounting seat (320).

8. A disassembly and assembly tool for a pitch electromagnetic brake according to claim 7, characterized in that: A second positioning column (322) adapted to the circular hole at the top end of the brake (10) is coaxially fixedly provided at the bottom end of the mounting seat (320).

9. A disassembly and assembly tool for a pitch electromagnetic brake according to claim 7, characterized in that: The screw assembly (330) includes a sleeve slidably connected to the radial slot (321) and a screw threadedly connected to the sleeve. Nuts are provided at both ends of the sleeve. The two nuts are respectively fitted with the top wall and the bottom wall of the radial slot (321). A spherical connector is fixedly provided at the bottom end of the screw. A pressure plate is rotatably connected to the connector. The bottom radius of the pressure plate is larger than the top radius.

10. A disassembly and assembly tool for a pitch electromagnetic brake according to claim 9, characterized in that: The top end of the screw rod is provided with a connection end for connecting an electric wrench.

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