A magnetic coupling of a mechanical speed regulating mechanism and a method of using the same

Abstract

The invention discloses a magnetic coupler of a mechanical speed regulating mechanism, comprising an output shaft, an output assembly, a disk assembly and an output bearing seat, wherein the disk assembly is fixedly installed at the left end of the output assembly, the output shaft is plugged and assembled in the output assembly, and a worm gear cover is fixedly installed on the left surface of the output bearing seat through a first fixing screw. The speed regulating mechanism of the magnetic coupler of the invention adopts a mechanical structure worm gear and worm transmission, which is simple and reliable in operation, and effectively changes the phenomenon that the existing structure curved groove is difficult to process and the structure is stuck. A T-type thread structure is adopted inside the worm gear, and the thread structure is utilized to convert the angle transmission into the axial transmission. The worm gear, the worm and the screw are made of 40Cr material, which has high strength and good wear resistance. The speed regulating mechanism of the magnetic coupler adopts a spline matching between the bearing sleeve and the output shaft, which is simple in processing, stable and reliable in operation, and greatly increases the transmission torque.

Description

Technical Field

[0001] The invention belongs to the technical field of magnetic couplings, and in particular provides a magnetic coupling of a mechanical speed regulating mechanism and a use method thereof. Background Art

[0002] In the field of magnetic coupling design, there is a speed-regulating magnetic coupling, which controls the number of revolutions by adjusting the gap between the magnetic coupling disk and the copper disk to adjust the size of the magnetic force through an execution drive device driving the speed regulation through a pull rod.

[0003] In the design field of traditional speed-regulating magnetic couplings, the speed-regulating mechanism is a pull rod that drives the speed-regulating outer sleeve to rotate in the curved groove of the speed-regulating inner sleeve, thereby controlling the gap between the magnetic coupling disk and the copper disk, and controlling the size of the air gap to control the speed. However, the curved groove of the speed-regulating inner sleeve is not easy to process, and the structure sometimes gets stuck during use. If a magnetic coupling can be designed that can conveniently and effectively adjust the air gap size without processing the curved groove, such problems can be solved. To this end, we propose a mechanical speed-regulating mechanism magnetic coupling and a method of use. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a magnetic coupling of a mechanical speed regulating mechanism and a use method thereof.

[0005] To achieve the above object, the technical solution adopted by the present invention is: a magnetic coupling of a mechanical speed regulating mechanism, comprising an output shaft, an output assembly, a disk assembly and an output bearing seat, wherein the output assembly is assembled in the output bearing seat, the disk assembly is fixedly installed at the left end of the output assembly, the output shaft is plug-assembled in the output assembly, and a worm gear cover is fixedly installed on the left surface of the output bearing seat by a first fixing screw;

[0006] The output assembly includes a bearing sleeve, and the bearing sleeve is sleeved on the outer surface of the output shaft, a self-lubricating sleeve is inlaid on the right side of the inner surface of the bearing sleeve, the inner stop of the disk assembly is fixed to the left end of the bearing sleeve by a fastening screw, the outer surface of the bearing sleeve is symmetrically equipped with angular contact bearings, the outer wall of the angular contact bearing is sleeved with a screw, a guide key is fixedly installed on the left side of the outer surface of the screw by a limiting screw, a key slot is provided on the upper side of the inner surface of the worm gear cover, and the guide key is inserted into the key slot, a worm gear is installed between the output bearing seat and the worm gear cover, and a T-type thread structure is provided on the inner surface of the worm gear, the worm gear is screwed to the outer surface of the screw through the T-type thread structure, a worm is inserted and assembled on the rear side of the inner cavity of the output bearing seat, and the worm and the worm wheel are meshed with each other.

[0007] Furthermore, the screw, worm wheel and worm are all made of 40Cr material.

[0008] Furthermore, a first round nut and a washer are sleeved and assembled on the left side of the outer surface of the output shaft.

[0009] Furthermore, the outer wall of the bearing sleeve is sleeved with a speed regulating bearing spacer I and a speed regulating bearing spacer II, and the speed regulating bearing spacer I and the speed regulating bearing spacer II are located between the two angular contact bearings, the outer surface of the right end of the bearing sleeve is equipped with a second round nut and a first locking washer, and the left surface of the screw is fixed with a speed regulating bearing cover by a screw.

[0010] Furthermore, a wear-resistant sleeve is fixedly mounted on the right side of the outer surface of the screw rod by a second fixing screw.

[0011] Furthermore, a threaded hole is provided on the lower side of the outer surface of the output bearing seat, and a temperature sensor is threadedly assembled on the inner surface of the threaded hole, and the temperature sensor is connected to an external power supply through a wire.

[0012] Furthermore, a rotating shaft is vertically plugged into the rear side of the inner cavity of the output bearing seat, and the worm is assembled to the outer surface of the rotating shaft through a common flat key, the lower end of the output bearing seat is fixedly installed with a worm seat cover through a third round nut and a second stop washer, the upper surface of the worm seat cover is equipped with a deep groove ball bearing, a spacer sleeve is sleeved on the lower side of the outer surface of the rotating shaft, and the spacer sleeve is located between the deep groove ball bearing and the worm, the upper end of the output bearing seat is fixedly installed with a bearing positioning sleeve through a fastening bolt, the lower surface of the bearing positioning sleeve is equipped with an angular contact ball bearing, a small round nut and a third stop washer are sleeved on the upper side of the outer surface of the rotating shaft, and the third stop washer is tightly attached to the upper surface of the inner ring of the angular contact ball bearing, the upper end of the rotating shaft is fixedly installed with a star coupling, and a pull rod is fixedly installed on the upper side of the inner wall of the star coupling.

[0013] Furthermore, the output shaft and the bearing sleeve are assembled via meshing splines.

[0014] Furthermore, a method for using a magnetic coupling of a mechanical speed regulating mechanism comprises the following steps:

[0015] The actuator drives the pull rod to rotate, which drives the worm to rotate through the star coupling, thereby driving the worm wheel to rotate. The cooperation between the T-thread inside the worm wheel and the external thread of the screw causes the screw to move axially inside the output bearing seat, thereby driving the disk assembly connected by the mechanical structure to move at the same time, adjusting the size of the air gap between the disk assembly and the left copper disk.

[0016] The beneficial effects of using the present invention are:

[0017] 1. The speed regulating mechanism of the magnetic coupling of the present invention adopts a mechanical structure of worm gear and worm transmission, which is simple and reliable to operate.

[0018] 2. The present invention adopts a T-shaped thread structure inside the worm gear, and utilizes the thread structure to convert angular transmission into axial transmission.

[0019] 3. The worm wheel, worm and screw of the present invention are made of 40Cr material, which has high strength and good wear resistance.

[0020] 4. The magnetic coupling speed regulating mechanism of the present invention adopts a worm gear and worm structure, which effectively changes the problem that the curved groove of the existing structure is difficult to process and the structure is stuck.

[0021] 5. The speed regulating mechanism of the magnetic coupling of the present invention adopts a spline fit between the bearing sleeve and the output shaft, which is easy to process and runs smoothly and reliably, greatly increasing the transmission torque. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention.

[0023] Figure 2 For the present invention Figure 1 Middle AA section view.

[0024] Figure 3 For the present invention Figure 1 Middle BB cross-section.

[0025] The reference numerals include: 1, first round nut, 2, washer, 3, output shaft, 4, bearing sleeve, 5, disk assembly, 6, fastening screw, 7, speed regulating bearing cover, 8, guide key, 9, limit screw, 10, worm gear cover, 11, first fixing screw, 12, screw, 13, output bearing seat, 14, worm gear, 15, speed regulating bearing spacer II, 16, wear-resistant sleeve, 17, second fixing screw, 18, second round nut, 19, first stop washer, 20, self-lubricating sleeve, 2 1. Speed ​​regulating bearing spacer sleeve I, 22. Temperature sensor, 23. Worm seat cover, 24. Third round nut, 25. Second retaining washer, 26. Deep groove ball bearing, 27. Spacer, 28. Worm, 29. Ordinary flat key, 30. Angular contact ball bearing, 31. Fastening bolt, 32. Small round nut, 33. Third retaining washer, 34. Star coupling, 35. Bearing locating sleeve, 36. Angular contact bearing, 37. Output assembly, 38. Pull rod, 39. Rotating shaft, 40. Keyway. DETAILED DESCRIPTION

[0026] The present invention is described in detail below with reference to the accompanying drawings.

[0027] Reference Figure 1 , Figure 2 and Figure 3A mechanical speed regulating mechanism magnetic coupling comprises an output shaft 3, an output assembly 37, a magnetic disk assembly 5 and an output bearing seat 13, wherein the output assembly 37 is assembled in the output bearing seat 13. Figure 1 A copper disk is installed on the outer side of the left end connecting part of the output shaft 3. The gap between the copper disk and the disk assembly 5 is the air gap. The disk assembly 5 is fixedly installed on the left end of the output assembly 37. The disk assembly 5 corresponds to the position of the copper disk. The output shaft 3 is plugged and assembled in the output assembly 37. The left surface of the output bearing seat 13 is fixedly installed with a worm gear cover 10 by a first fixing screw 11.

[0028] The output assembly 37 includes a bearing sleeve 4, and the bearing sleeve 4 is sleeved on the outer surface of the output shaft 3. The right side of the inner surface of the bearing sleeve 4 is inlaid with a self-lubricating sleeve 20, which mainly plays a lubricating role. The inner stop of the disk assembly 5 is fixed to the left end of the bearing sleeve 4 by a fastening screw 6 to achieve the installation of the disk assembly 5 on the bearing sleeve 4. The outer surface of the bearing sleeve 4 is symmetrically equipped with angular contact bearings 36 to ensure that the structure at the bearing sleeve 4 and the screw 12 rotate relative to each other. The outer wall of the angular contact bearing 36 is sleeved and equipped with the screw 12. The left side of the outer surface of the screw 12 is fixedly installed with a guide key 8 by a limiting screw 9. The upper side of the inner surface of the worm gear cover 10 is provided with a keyway 40, and the guide key 8 is inserted into the keyway 40. The screw 1 is limited by the guide key 8. 2 cannot rotate in the worm gear cover 10 and can only move along the axial direction. A worm wheel 14 is installed between the output bearing seat 13 and the worm gear cover 10. The worm gear cover 10 plays a role in positioning the position of the worm wheel 14, and the inner surface of the worm wheel 14 is provided with a T-shaped thread structure. The worm wheel 14 is screwed to the outer surface of the screw 12 through the T-shaped thread structure. Therefore, when the worm wheel 14 rotates, under the first setting of the guide key 8, it will drive the screw 12 to move axially. The rear side of the inner cavity of the output bearing seat 13 is plugged and installed with a worm 28, and the worm 28 and the worm wheel 14 are meshed with each other. Therefore, rotating the worm 28 will drive the worm wheel 14, and then make the screw 12 move axially, and finally drive the disk assembly 5 to move axially along the output shaft 3, so as to adjust the size of the air gap between the disk assembly 5 and the copper disk.

[0029] Specifically, the screw 12, the worm wheel 14 and the worm 28 are all made of 40Cr material, which has high strength and good wear resistance.

[0030] Specifically, the left side of the outer surface of the output shaft 3 is sleeved with a first round nut 1 and a washer 2, which are located between the copper disk connection structure and the output component 37, and limit the movement of the output component 37, thereby controlling the minimum distance of the air gap to 5 mm.

[0031] Specifically, the outer wall of the bearing sleeve 4 is sleeved with a speed regulating bearing spacer I21 and a speed regulating bearing spacer II15, and the speed regulating bearing spacer I21 and the speed regulating bearing spacer II15 are located between the two angular contact bearings 36, and the speed regulating bearing spacer I21 and the speed regulating bearing spacer II15 are respectively in contact with the inner walls of the inner ring and the outer ring of the two angular contact bearings 36, and the outer surface of the right end of the bearing sleeve 4 is equipped with a second round nut 18 and a first stop washer 19, and the left surface of the screw 12 is fixed with a speed regulating bearing cover 7 by screws to realize the positioning effect of the angular contact bearing 36.

[0032] Specifically, a wear-resistant sleeve 16 is fixedly mounted on the right side of the outer surface of the screw rod 12 by a second fixing screw 17 , and plays a role of lubrication and wear resistance when the screw rod 12 slides in the output bearing seat 13 .

[0033] Specifically, a threaded hole is provided on the lower side of the outer surface of the output bearing seat 13, and a temperature sensor 22 is threadedly installed on the inner surface of the threaded hole. The temperature sensor 22 is connected to an external power supply through a wire, and is mainly used for temperature detection at the sliding position. When the temperature reaches 100 degrees, a high temperature alarm is triggered, causing the equipment to stop urgently, thereby protecting the equipment.

[0034] Specifically, a rotating shaft 39 is vertically plugged into the rear side of the inner cavity of the output bearing seat 13, and the worm 28 is assembled on the outer surface of the rotating shaft 39 through a common flat key 29. The lower end of the output bearing seat 13 is fixedly installed with a worm seat cover 23 through a third round nut 24 and a second stop washer 25. The upper surface of the worm seat cover 23 is equipped with a deep groove ball bearing 26. A spacer sleeve 27 is sleeved on the lower side of the outer surface of the rotating shaft 39, and the spacer sleeve 27 is located between the deep groove ball bearing 26 and the worm 28. The worm seat cover 23 cooperates with the spacer sleeve 27 to position the deep groove ball bearing 26. In addition, the spacer sleeve 27 cooperates with the step of the rotating shaft 39 to limit the worm 28. The upper end of the output bearing seat 13 is fixed by a fastening bolt 31 A bearing positioning sleeve 35 is fixedly installed, and an angular contact ball bearing 30 is installed on the lower surface of the bearing positioning sleeve 35. A small round nut 32 and a third stop washer 33 are sleeved and installed on the upper side of the outer surface of the rotating shaft 39, and the third stop washer 33 is tightly attached to the upper surface of the inner ring of the angular contact ball bearing 30. The angular contact ball bearing 30 is positioned by cooperating with the small round nut 32, the third stop washer 33 and the bearing positioning sleeve 35 at the step of the rotating shaft 39. A star coupling 34 is fixedly installed on the upper end of the rotating shaft 39, and a pull rod 38 is fixedly installed on the upper side of the inner wall of the star coupling 34. The pull rod 38 is rotated by using the actuator, and it will drive the rotating shaft 39 to rotate after passing through the star coupling 34, and then drive the worm 28 to rotate.

[0035] Specifically, the output shaft 3 and the bearing sleeve 4 are assembled through meshing splines, which are easy to process and run smoothly and reliably, greatly increasing the transmission torque.

[0036] Specifically, a method for using a magnetic coupling of a mechanical speed regulating mechanism comprises the following steps:

[0037] The execution device drives the pull rod 38 to rotate, and drives the worm 28 to rotate through the star coupling 34, thereby driving the worm wheel 14 to rotate. Through the cooperation of the T-thread inside the worm wheel 14 and the external thread of the screw 12, the screw 12 is prompted to move axially inside the output bearing seat 13, thereby driving the disk assembly 5 connected by the mechanical structure to move at the same time, adjusting the size of the air gap between the disk assembly 5 and the left copper disk, thereby achieving control of the rotation speed.

[0038] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, many changes can be made in the specific implementation methods and application scopes based on the ideas of the present invention. As long as these changes do not deviate from the concept of the present invention, they all belong to the protection scope of the present invention.

Claims

1. A magnetic coupling of a mechanical speed regulating mechanism, characterized in that: The output assembly (37) comprises an output shaft (3), an output component (37), a magnetic disk component (5) and an output bearing seat (13), wherein the output component (37) is assembled in the output bearing seat (13), the magnetic disk component (5) is fixedly mounted on the left end of the output component (37), the output shaft (3) is plug-assembled in the output component (37), and a worm gear cover (10) is fixedly mounted on the left surface of the output bearing seat (13) by a first fixing screw (11); The output assembly (37) comprises a bearing sleeve (4), and the bearing sleeve (4) is sleeved on the outer surface of the output shaft (3), and a self-lubricating sleeve (20) is embedded on the right side of the inner surface of the bearing sleeve (4), and the inner stop of the magnetic disk assembly (5) is fixed to the left end of the bearing sleeve (4) by a fastening screw (6), and the outer surface of the bearing sleeve (4) is symmetrically equipped with an angular contact bearing (36), and the outer wall of the angular contact bearing (36) is sleeved and equipped with a screw (12), and the left side of the outer surface of the screw (12) is fixed by a limiting screw (9). A guide key (8) is provided, a keyway (40) is provided on the upper side of the inner surface of the worm gear cover (10), and the guide key (8) is inserted into the keyway (40), a worm wheel (14) is installed between the output bearing seat (13) and the worm gear cover (10), and a T-shaped thread structure is provided on the inner surface of the worm wheel (14), and the worm wheel (14) is screwed to the outer surface of the screw rod (12) through the T-shaped thread structure, and a worm (28) is inserted and installed on the rear side of the inner cavity of the output bearing seat (13), and the worm (28) and the worm wheel (14) are meshed with each other.

2. A magnetic coupling of a mechanical speed regulating mechanism according to claim 1, characterized in that: The screw (12), the worm wheel (14) and the worm (28) are all made of 40Cr material.

3. A magnetic coupling of a mechanical speed regulating mechanism according to claim 1, characterized in that: The left side of the outer surface of the output shaft (3) is sleeve-assembled with a first round nut (1) and a washer (2).

4. A magnetic coupling of a mechanical speed regulating mechanism according to claim 1, characterized in that: The outer wall of the bearing sleeve (4) is sleeved with a speed regulating bearing spacer I (21) and a speed regulating bearing spacer II (15), and the speed regulating bearing spacer I (21) and the speed regulating bearing spacer II (15) are located between the two angular contact bearings (36). The outer surface of the right end of the bearing sleeve (4) is equipped with a second round nut (18) and a first stop washer (19), and the left surface of the screw rod (12) is fixed with a speed regulating bearing cover (7) by screws.

5. A magnetic coupling of a mechanical speed regulating mechanism according to claim 1, characterized in that: A wear-resistant sleeve (16) is fixedly mounted on the right side of the outer surface of the screw rod (12) via a second fixing screw (17).

6. A magnetic coupling of a mechanical speed regulating mechanism according to claim 1, characterized in that: A threaded hole is provided on the lower side of the outer surface of the output bearing seat (13), and a temperature sensor (22) is threadedly mounted on the inner surface of the threaded hole. The temperature sensor (22) is connected to an external power source via a wire.

7. A magnetic coupling of a mechanical speed regulating mechanism according to claim 1, characterized in that: A rotating shaft (39) is vertically inserted and assembled at the rear side of the inner cavity of the output bearing seat (13), and the worm (28) is assembled on the outer surface of the rotating shaft (39) through a common flat key (29). A worm seat cover (23) is fixedly mounted on the lower end of the output bearing seat (13) through a third round nut (24) and a second stop washer (25). A deep groove ball bearing (26) is assembled on the upper surface of the worm seat cover (23). A spacer sleeve (27) is sleeved on the lower side of the outer surface of the rotating shaft (39), and the spacer sleeve (27) is located between the deep groove ball bearing (26) and the worm (28). A bearing locating sleeve (35) is fixedly mounted on the upper end of the output bearing seat (13) by means of a fastening bolt (31); an angular contact ball bearing (30) is mounted on the lower surface of the bearing locating sleeve (35); a small round nut (32) and a third stop washer (33) are sleeved on the upper side of the outer surface of the rotating shaft (39); the third stop washer (33) is tightly attached to the upper surface of the inner ring of the angular contact ball bearing (30); a star coupling (34) is fixedly mounted on the upper end of the rotating shaft (39); a pull rod (38) is fixedly mounted on the upper side of the inner wall of the star coupling (34).

8. A magnetic coupling of a mechanical speed regulating mechanism according to claim 1, characterized in that: The output shaft (3) and the bearing sleeve (4) are assembled via meshing splines.

9. A method for using a magnetic coupling of a mechanical speed regulating mechanism according to claims 1-8, characterized in that: The following steps are involved: The execution device drives the pull rod (38) to rotate, and drives the worm (28) to rotate through the star coupling (34), thereby driving the worm wheel (14) to rotate. Through the cooperation of the T-thread inside the worm wheel (14) and the external thread of the screw (12), the screw (12) is prompted to move axially inside the output bearing seat (13), thereby driving the disk assembly (5) connected by the mechanical structure to move at the same time, thereby adjusting the size of the air gap between the disk assembly (5) and the left copper disk.

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