A radial spiral movable shielded permanent magnet speed regulator

Abstract

The invention discloses a radial spiral movable shielded permanent magnet speed regulator, including a cylindrical conductor rotor, a magnetic rotor and a driven shaft, wherein a first sleeve is axially slidably provided on the main shaft, a second sleeve is rotatably installed on the driven shaft, a connecting rod structure is installed between the first sleeve and the second sleeve, and the connecting rod structure is composed of a support rod fixedly installed on a mounting plate, a buffer assembly and a support rod installed between two relative buffer assemblies; the buffer assembly is composed of an annular sleeve clamped in the mounting plate, a piston plate arranged in the annular sleeve and a wave gasket clamped between the annular sleeve and the side wall of the mounting plate, and the side of the piston plate is movably connected to the support rod through a universal joint. The speed regulator optimizes the design of the connecting rod structure used for gap adjustment, ensures the mobility and buffering effect of the connection structure, avoids the deformation of the connecting parts caused by the vibration generated during the rotation of the main shaft and the driven shaft, and ensures the smoothness and stability of the gap adjustment operation.

Description

Technical Field

[0001] The invention belongs to the technical field of permanent magnet speed regulators, and specifically relates to a radial spiral movable shielded permanent magnet speed regulator. Background Art

[0002] Permanent magnet speed regulation technology is a breakthrough new technology developed internationally in recent years. It is a suitable technology specifically for speed regulation and energy saving of centrifugal loads such as fans and pumps. It has the characteristics of high efficiency and energy saving, high reliability, torque transmission without rigid connection, can be used in harsh environments, greatly reduces overall system vibration, reduces system maintenance and extends system service life, making it the first choice for energy-saving technology transformation of fans and pumps. When the permanent magnet speed regulator is working, the permanent magnet rotor is set inside the cylindrical conductor rotor, and the relative position of the conductor rotor and the cylindrical conductor rotor in the axial direction is pushed by the electric push rod to change the effective part of the coupling between the permanent magnet rotor and the conductor rotor, thereby adjusting the torque and realizing the efficiency of controlling the transmission of torque from the main shaft to the driven shaft.

[0003] The connectors used for gap adjustment on the radial spiral movable shielded permanent magnet speed regulator currently in use are mostly assembled together in a relatively fixed manner. In the process of transmitting torque from the main shaft to the driven shaft, irregular vibrations are generated, which can easily cause deformation of the connectors. In severe cases, it may affect the smoothness of the gap adjustment and even reduce the working stability of the speed regulator. Therefore, targeted improvement designs are needed. Summary of the invention

[0004] The purpose of the invention is to provide a radial spiral movable shielded permanent magnet speed regulator for use to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the invention provides the following technical solutions: a radial spiral movable shielded permanent magnet speed regulator, comprising a cylindrical conductor rotor fixedly mounted on one end of a main shaft, a permanent magnet rotor rotatably arranged inside the cylindrical conductor rotor, and a driven shaft fixedly mounted in the middle of the permanent magnet rotor, a first shaft sleeve axially slidably arranged on the main shaft, a second shaft sleeve rotatably arranged on the driven shaft, a connecting rod structure is installed between the first shaft sleeve and the second shaft sleeve, and the connecting rod structure is composed of a mounting plate fixedly mounted on the opposite ends of the first shaft sleeve and the second shaft sleeve, a plurality of buffer components arranged at the edge of the mounting plate, and a support rod installed between two opposite buffer components;

[0006] The buffer assembly is composed of an annular sleeve clamped in the mounting plate, a piston plate arranged in the annular sleeve, and a wave gasket clamped between the annular sleeve and the side wall of the mounting plate. The side of the piston plate is movably connected to the support rod through a universal joint.

[0007] Preferably, the mounting plate is composed of a first shell and a second shell, cylindrical grooves are correspondingly provided at edge positions of the first shell and the second shell, the buffer assembly is arranged in the cylindrical groove, and an opening for the support rod to pass through is provided at the bottom of the cylindrical groove of the first shell.

[0008] Preferably, the piston plate is composed of a metal plate surrounded by a rubber sleeve.

[0009] Technical effects and advantages of the invention: The radial spiral movable shielded permanent magnet speed regulator avoids deformation of various connecting components during vibration of the speed regulator by arranging a buffer component, a mounting plate and a support rod, thereby ensuring smooth and stable gap adjustment, and avoiding jamming or even gap adjustment failure caused by connection deformation between the support rod and the two mounting plates, thereby being more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A schematic diagram of the structure of the invention;

[0011] Figure 2 A schematic diagram of the structure of the invention;

[0012] Figure 3 This is a schematic diagram of the structure of the metal branch pipe.

[0013] In the figure: 1, main shaft; 2, connecting rod structure; 21, mounting plate; 22, buffer assembly; 23, support rod;

[0014] 211, first shell; 212, second shell;

[0015] 221, annular sleeve; 222, piston plate; 223, wave gasket;

[0016] 2221, metal plate; 2222, rubber sleeve;

[0017] 3. Permanent magnet rotor; 4. Driven shaft; 5. First sleeve; 6. Second sleeve; 7. Cylindrical conductor rotor; 8. Universal joint; 9. Cylindrical slot; 10. Opening. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the invention to clearly and completely describe the technical solutions in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of the embodiments. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the invention.

[0019] The invention provides Figure 1-3A radial spiral movable shielded permanent magnet speed regulator shown in the figure comprises a cylindrical conductor rotor 7 fixedly mounted on one end of a main shaft 1, a permanent magnet rotor 3 rotatably arranged on the inner side of the cylindrical conductor rotor 7, and a driven shaft 4 fixedly mounted on the middle part of the permanent magnet rotor 3, a first shaft sleeve 5 is axially slidably arranged on the main shaft 1, a second shaft sleeve 6 is rotatably arranged on the driven shaft 4, a connecting rod structure 2 is installed between the first shaft sleeve 5 and the second shaft sleeve 6, and the connecting rod structure 2 is composed of a mounting plate 21 fixedly mounted on the opposite ends of the first shaft sleeve 5 and the second shaft sleeve 6, a plurality of buffer components arranged at the edge of the mounting plate 21, and a support rod 23 installed between two opposite buffer components;

[0020] The buffer assembly is composed of an annular sleeve 221 clamped in the mounting plate 21, a piston plate 222 arranged in the annular sleeve 221, and a wave gasket 223 clamped between the annular sleeve 221 and the side wall of the mounting plate 21. The side of the piston plate 222 is movably connected to the support rod 23 through a universal joint 8.

[0021] When the gap between the cylindrical conductor rotor 7 and the permanent magnet rotor 3 is adjusted, the mounting plate 21 on the first sleeve 5 is pushed by the electric push rod, so that the first sleeve 5 slides axially along the main shaft 1, and the mounting plate 21 on the first sleeve 5 pushes the mounting plate 21 on the second sleeve 6 to move through the support rod 23. Since the second sleeve 6 is rotatably mounted on the driven shaft 4, the driven shaft 4 is pushed to move axially along the main shaft 1, thereby achieving the gap adjustment effect and changing the efficiency of the main shaft 1 in transmitting torque. In the normal process of the speed regulator, the main shaft 1 The driven shaft 4 rotates to generate vibration, thereby driving the mounting plate 21 to vibrate through the corresponding first sleeve 5 and the second sleeve 6 respectively, and the two ends of the support rod 23 drive the piston plate 222 to move in the annular sleeve 221, and the compressed air buffers the movement, and the universal joint 8 between the support rod 23 and the piston rod also increases the freedom of movement. In addition, the wave gaskets 223 arranged on both sides of the annular sleeve 221 buffer the left and right movement of the annular sleeve 221 in the mounting plate 21, thereby preventing the mounting plate 21 from being pulled to deviate during the vibration process, or causing the connection between the support rod 23 and the plug plate to be deformed. The degree of freedom between the connecting parts is large, and a buffer assembly is provided to avoid deformation of the connecting parts caused by vibration during the rotation of the main shaft 1 and the driven shaft 4, thereby ensuring smooth and stable adjustment of the gap, thereby ensuring the stability of the speed regulator.

[0022] The installation plate 21 is composed of a first shell 211 and a second shell 212, and the edges of the first shell 211 and the second shell 212 are provided with cylindrical grooves 9, and the buffer assembly is arranged in the cylindrical grooves 9, and the bottom of the cylindrical grooves 9 of the first shell 211 is provided with an opening 10 for the support rod 23 to pass through. The installation plate 21 is opened by disassembling the first shell 211 and the second shell 212 to replace the buffer assembly therein, thereby further ensuring smooth and stable gap adjustment.

[0023] The piston plate 222 is composed of a metal plate 2221 surrounded by a rubber sleeve 2222. The opening 10 of the annular sleeve 221 is blocked and sealed, and the internal air is compressed when the piston plate 222 moves relatively in the annular sleeve 221, so as to ensure the freedom of movement of the piston plate 222 and buffer the movement of the piston plate 222 by compressed air.

[0024] Finally, it should be noted that the above is only a preferred embodiment of the invention and is not intended to limit the invention. Although the invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the invention should be included in the scope of protection of the invention.

Claims

1. A radial helical movable shielded permanent magnet speed regulator, comprising a cylindrical conductor rotor (7) fixedly mounted on one end of a main shaft (1), a permanent magnet rotor (3) rotatably arranged inside the cylindrical conductor rotor (7), and a driven shaft (4) fixedly mounted in the middle of the permanent magnet rotor (3), Features: A first sleeve (5) is axially slidably arranged on the main shaft (1), a second sleeve (6) is rotatably mounted on the driven shaft (4), a connecting rod structure (2) is installed between the first sleeve (5) and the second sleeve (6), and the connecting rod structure (2) is composed of a mounting plate (21) fixedly mounted on opposite ends of the first sleeve (5) and the second sleeve (6), a plurality of buffer components (22) arranged at the edge of the mounting plate (21), and a support rod (23) installed between two opposite buffer components (22); when the gap between the cylindrical conductor rotor (7) and the permanent magnet rotor (3) is adjusted, the connecting rod structure (2) is electrically driven to adjust the gap between the cylindrical conductor rotor (7) and the permanent magnet rotor (3). The push rod pushes the mounting plate (21) on the first sleeve (5), so that the first sleeve (5) slides axially along the main shaft (1), and the mounting plate (21) on the first sleeve (5) pushes the mounting plate (21) on the second sleeve (6) to move via the support rod (23). Since the second sleeve (6) is rotatably mounted on the driven shaft (4), the driven shaft (4) is pushed to move axially along the main shaft (1). During normal operation of the speed regulator, the main shaft (1) and the driven shaft (4) rotate to generate vibration, thereby driving the mounting plate (21) to vibrate through the corresponding first sleeve (5) and second sleeve (6). The buffer assembly (22) is composed of an annular sleeve (221) clamped in the mounting plate (21), a piston plate (222) arranged in the annular sleeve (221), and a wave gasket (223) clamped between the annular sleeve (221) and the side wall of the mounting plate (21). The side surface of the piston plate (222) is movably connected to the support rod (23) through a universal joint (8); the two ends of the support rod (23) drive the piston plate (222) to move in the annular sleeve (221), the compressed air buffers the movement, and the universal joint (8) between the support rod (23) and the piston rod increases the degree of freedom of movement.

2. A radial spiral movable shielded permanent magnet speed regulator according to claim 1, Features: The mounting plate (21) is formed by splicing a first shell (211) and a second shell (212), and the edges of the first shell (211) and the second shell (212) are respectively provided with cylindrical grooves (9), the buffer assembly is arranged in the cylindrical grooves (9), and the bottom of the cylindrical grooves (9) of the first shell (211) is provided with an opening (10) for the support rod (23) to pass through.

3. A radial spiral movable shielded permanent magnet speed regulator according to claim 2, Features: The piston plate (222) is composed of a metal plate (2221) surrounded by a rubber sleeve (2222).

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