Disc-type hysteresis coupling of frame structure

Abstract

The invention discloses a disc type hysteresis coupling of a frame structure. The device comprises a frame, an end shaft is rotatably mounted at the top of the frame, a mandrel with an induction sheet is rotatably mounted at the bottom of the frame, and a split shaft bracket fixedly connected with the end shaft is rotatably mounted on the mandrel; a magnetic steel disc corresponding to the induction piece is installed on the split shaft frame through a plurality of torque adjusting screw rods, the torque adjusting screw rods can adjust the distance between the magnetic steel disc and the induction piece by being matched with the locking nuts, and therefore the working torque of the coupler can be adjusted. The magnetic hysteresis coupling has the advantages that the magnetic steel disc is connected through the torque adjusting screw rod, and the screwing-in depth of the torque adjusting screw rod is adjusted and fixed through the locking nut, so that a worker can directly adjust the distance between the magnetic steel disc and the induction sheet from the outside, namely the working clearance of the magnetic hysteresis coupling; therefore, on the premise that equipment does not need to be disassembled, the working torque of the coupler can be conveniently adjusted, the earlier-stage debugging time is greatly saved, and the later-stage maintenance efficiency is improved.

Description

Technical Field

[0001] This invention relates to a coupling, specifically a disc-type hysteresis coupling with a frame structure. Background Technology

[0002] Couplings, as a crucial component of mechanical transmission, come in many types. Among them, hysteresis couplings primarily utilize magnetic materials to efficiently transmit power from the driving component to the driven component without physical contact through magnetic coupling. Currently, most machinery used in ports and docks employs enclosed cylindrical hysteresis couplings for its transmission components. However, this type of coupling requires complete disassembly for torque adjustment, which is time-consuming, labor-intensive, and extremely inefficient. Furthermore, its heat dissipation is poor; once the demagnetization temperature of the magnetic material is exceeded, the hysteresis coupling will malfunction. Additionally, couplings used in marine engineering equipment require strong corrosion resistance, but using stainless steel entirely can easily lead to insufficient bonding strength between the magnets. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a disc-type hysteresis coupling with a frame structure that features convenient and quick torque adjustment, good heat dissipation, strong corrosion resistance, and reliable magnet bonding.

[0004] To solve the above-mentioned technical problems, the present invention provides a disc-type hysteresis coupling with a frame structure, comprising a frame, an end shaft rotatably mounted on the top of the frame, a mandrel with an induction plate rotatably mounted on the bottom of the frame, and a split shaft bracket rotatably mounted on the mandrel and fixedly connected to the end shaft; a magnetic steel disc corresponding to the induction plate is mounted on the split shaft bracket through multiple torque adjusting screws, and the torque adjusting screws can adjust the distance between the magnetic steel disc and the induction plate by cooperating with a locking nut, thereby realizing the adjustment of the working torque of the coupling.

[0005] The frame is provided with an end cap at the top, and the end shaft is mounted in the middle of the end cap via a bearing; the frame is provided with a bearing seat at the bottom, the mandrel is mounted in the middle of the bearing seat via a bearing, and the split shaft bracket is mounted on top of the mandrel via a bearing.

[0006] A sensor plate fixing plate is provided on the mandrel via a mandrel key, and the sensor plate is disposed on the sensor plate fixing plate.

[0007] The bottom of the sensor plate mounting plate is equipped with heat dissipation fan blades.

[0008] The magnet disk includes a magnet mounting plate mounted on the split shaft frame via the torque adjusting screw, a steel plate embedded in the bottom of the magnet mounting plate, and magnets fixed to the bottom of the steel plate.

[0009] The magnets are an even number and are arranged at equal intervals along the circumference above the induction plate with alternating positive and negative magnetic poles, and the gaps are filled with epoxy resin.

[0010] The frame, end shaft, mandrel, split shaft bracket, torque adjusting screw, end cover, bearing seat, induction plate fixing plate, and magnet mounting plate are all made of stainless steel.

[0011] The advantages of this invention are: (1) The magnetic steel disc is connected by a torque adjusting screw, and the screwing depth of the torque adjusting screw is adjusted and fixed by a locking nut. This allows the operator to directly adjust the distance between the magnetic steel disc and the induction plate from the outside, i.e. the working clearance of the hysteresis coupling. This allows for convenient adjustment of the working torque of the coupling without disassembling the equipment, greatly saving the initial debugging time and improving the efficiency of subsequent maintenance. (2) The main structure is replaced with stainless steel. A steel plate is placed between the magnets when they are installed on the magnet mounting plate. This not only improves the corrosion resistance of the coupling, but also solves the problem that the magnets are easy to fall off due to the weak magnetism of stainless steel. Epoxy resin is also filled in the gaps to effectively ensure the installation reliability of the magnets. (3) The bottom of the induction plate fixing plate is equipped with heat dissipation fan blades. The heat dissipation fan blades that rotate synchronously with the spindle can effectively improve the heat dissipation capacity of the equipment, thereby avoiding the hysteresis coupling from failing to work due to the internal temperature exceeding the demagnetization temperature of the magnetic material. Attached Figure Description

[0012] Figure 1 This is the front view of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 for Figure 1 Cross-sectional view at point AA; Figure 4 for Figure 2 Enlarged view of point A. Detailed Implementation

[0013] The disc-type hysteresis coupling with a frame structure of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0014] As shown in the figure, the disc-type hysteresis coupling with a frame structure of the present invention includes a frame 1. A bearing seat 10 is formed at the bottom of the frame 1. A spindle 4 is rotatably mounted in the bearing seat 10 via a pair of deep groove ball bearings. A spacer ring is installed between the bearings. The spindle 4 is a stepped shaft. An induction plate fixing disc 11 that rotates synchronously with the spindle 4 is mounted on its lower shoulder via a spindle key and fixed with fastening screws. A retaining spring is also installed on the upper end face of the induction plate fixing disc 11 on the spindle 4 to further limit the axial movement of the induction plate fixing disc 11. An induction plate 3 is fixed to the upper surface of the induction plate fixing disc 11 with flat-head screws, and a cooling fan blade 12 for improving the heat dissipation capacity of the coupling is mounted on the lower surface with fixing screws.

[0015] An end cap 9 is bolted to the top of frame 1. An end shaft 2 with a circular bottom surface is rotatably mounted on the end cap 9 via a through hole in the center and a bearing. An annular groove is formed on the end shaft 2 and end cap 9 above the upper bearing, and a retaining ring is installed within it to prevent axial movement of the end shaft 2. A split shaft bracket 5 with circular top and bottom surfaces is rotatably mounted on the middle and upper shoulder of the spindle 4 via bearings. The diameter of the top circular surface of the split shaft bracket 5 is similar to that of the bottom circular surface of the end shaft 2, and they are fixed together by bolts. The diameter of the bottom circular surface of the split shaft bracket 5 is larger than that of the top circular surface. Four threaded holes are evenly spaced on its circumference, and a torque adjusting screw 6 is inserted into each hole. The torque adjusting screw 6 is fixed above and below the bottom circular surface of the split shaft bracket 5 by locking nuts 8, allowing the operator to adjust the screw depth of the torque adjusting screw 6 within the threaded holes by adjusting the tightness of the upper and lower locking nuts 8.

[0016] Four torque adjusting screws 6 are screwed to a magnet mounting plate 13 with corresponding threaded holes at the bottom. The bottom of the magnet mounting plate 13 has an annular groove corresponding to the position of the induction plate 3, and a steel plate 14 is embedded in it. Below the steel plate 14, an even number of magnets 15 are arranged at equal intervals along the circumference with alternating positive and negative magnetic poles, and the gaps are filled with epoxy resin for fixation. The fixed magnets 15 are located directly above the induction plate 3. The magnets 15, the steel plate 14, and the magnet mounting plate 13 together constitute the magnet disk 7. The distance between the magnet disk 7 and the induction plate 3 is the working clearance of the hysteresis coupling. By adjusting the screw depth of the torque adjusting screws 6, the operator can directly adjust the size of the working clearance from the outside, thereby adjusting the working torque of the coupling without disassembling the equipment, which greatly saves the initial debugging time and improves the efficiency of subsequent maintenance.

[0017] Furthermore, in the entire coupling, the frame 1, end shaft 2, spindle 4, split shaft bracket 5, torque adjusting screw 6, end cover 9, bearing seat 10, induction plate fixing plate 11, cooling fan blade 12, and magnet mounting plate 13 are all made of stainless steel. Only when the magnet 15 is installed on the magnet mounting plate 13 is a steel plate 14 placed between them. This not only improves the coupling's corrosion resistance but also solves the problem that the magnet 15 is prone to falling off due to the weak magnetism of stainless steel. Epoxy resin is also filled in the gaps, thus effectively ensuring the installation reliability of the magnet 15.

[0018] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A disc-type hysteresis coupling with a frame structure, characterized in that: The coupling includes a frame (1), an end shaft (2) is rotatably mounted on the top of the frame (1), a spindle (4) with a sensing plate (3) is rotatably mounted on the bottom of the frame (1), and a split shaft bracket (5) fixedly connected to the end shaft (2) is rotatably mounted on the spindle (4); a magnet plate (7) corresponding to the sensing plate (3) is mounted on the split shaft bracket (5) through multiple torque adjusting screws (6), and the torque adjusting screws (6) can adjust the distance between the magnet plate (7) and the sensing plate (3) by cooperating with the locking nut (8), thereby realizing the adjustment of the working torque of the coupling.

2. The disc-type hysteresis coupling with a frame structure according to claim 1, characterized in that: The frame (1) is provided with an end cap (9) at the top, and the end shaft (2) is provided in the middle of the end cap (9) through a bearing; the frame (1) is provided with a bearing seat (10) at the bottom, the spindle (4) is provided in the middle of the bearing seat (10) through a bearing, and the split shaft frame (5) is provided on the top of the spindle (4) through a bearing.

3. The disc-type hysteresis coupling with a frame structure according to claim 2, characterized in that: The mandrel (4) is provided with a sensor plate fixing plate (11) via a mandrel key, and the sensor plate (3) is disposed on the sensor plate fixing plate (11).

4. The disc-type hysteresis coupling with a frame structure according to claim 3, characterized in that: The bottom of the sensor plate fixing plate (11) is provided with heat dissipation fan blades (12).

5. The disc-type hysteresis coupling with a frame structure according to claim 3, characterized in that: The magnet disk (7) includes a magnet mounting plate (13) mounted on the split shaft frame (5) via the torque adjusting screw (6), a steel plate (14) embedded in the bottom of the magnet mounting plate (13), and a magnet (15) fixed to the bottom of the steel plate (14).

6. The disc-type hysteresis coupling with a frame structure according to claim 5, characterized in that: The magnets (15) are an even number and are arranged at equal intervals along the circumference above the induction sheet (3) in an alternating pattern of positive and negative magnetic poles, with epoxy resin filling the gaps between them.

7. The disc-type hysteresis coupling with a frame structure according to claim 5, characterized in that: The frame (1), the end shaft (2), the spindle (4), the split shaft bracket (5), the torque adjusting screw (6), the end cover (9), the bearing seat (10), the induction plate fixing plate (11), and the magnet mounting plate (13) are made of stainless steel.

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