Fault monitoring device of magnetic suspension fan

Abstract

The utility model provides a fault monitoring device of a magnetic suspension fan, which belongs to the field of magnetic suspension fans, and comprises a shell, two sides of the inner wall of the shell are rotatably connected with a rotating shaft through two magnetic suspension bearings, a stator is arranged in the middle of the inner wall of the shell, a rotor is arranged in the middle of the surface of the rotating shaft, and the magnetic suspension bearings are arranged in the shell. And monitoring assemblies are arranged on the surfaces of the rotating shaft at two ends of the rotor. According to the utility model, the mounting ring cooperates with the two silicon steel sheets to block the movement of the rotor, the mounting ring drives the two groups of buffer rods to move, and the two groups of buffer rods drive the slide blocks to move in the two groups of mounting sleeves to extrude the two groups of springs therein, so that the radial movement of the two ends of the rotor is buffered; and meanwhile, the mounting ring drives the two cushion blocks to move and make contact with the two displacement sensors on the mounting base, so that signals are transmitted to the control panel, an alarm is matched to give an alarm, and workers are reminded in time.

Description

Technical Field

[0001] The utility model relates to the field of magnetic suspension fans, in particular to a fault monitoring device for magnetic suspension fans. Background Art

[0002] A magnetic levitation fan is a mechanical device for conveying gas. It uses a contactless, mechanically frictionless magnetic levitation bearing and a high-speed, high-power permanent magnet synchronous motor to directly drive a high-efficiency fluid impeller. It is widely used in industrial fields such as sewage treatment and material gas transportation. After searching, a magnetic levitation fan disclosed in application number CN201820626171.9 is recorded to include a housing, a rotor, a stator, a rotating shaft, a magnetic levitation bearing and blades, wherein the rotor is fixedly connected to the rotating shaft, the stator is fixed to the inner side of the housing, the rotor is located on the inner side of the stator, and the rotating shaft is rotatably connected to the housing through the magnetic levitation bearing. One end of the rotating shaft extends out of the outer side of the shell and is fixedly connected to the blade. The magnetic suspension bearing used in the magnetic suspension fan realizes suspension of the changing balance point through the lateral thrust generated by the permanent magnet. During use, no electric energy is required and the balance can be maintained continuously for a long time. However, the device still has the following defects in actual use: the device lacks a structure for fault monitoring during use. When the suspension system fails, the rotor will continue to rotate, and the rotating rotor will produce radial deviation or even fall, which may cause damage to the rotor itself, the magnetic suspension bearing and other components. Therefore, it is necessary to design a fault monitoring device for a magnetic suspension fan with strong practicality. Utility Model Content

[0003] The purpose of the utility model is to provide a fault monitoring device for a magnetic suspension fan to solve the problems raised by the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fault monitoring device for a magnetic suspension fan, comprising a shell, two sides of the inner wall of the shell are rotatably connected to a rotating shaft through two magnetic suspension bearings, a stator is provided in the middle of the inner wall of the shell, a rotor is provided in the middle of the surface of the rotating shaft, and monitoring components are provided on the surfaces of the rotating shaft at both ends of the rotor;

[0005] A monitoring component, the monitoring component includes two mounting seats installed on the surface of the rotating shaft, two mounting sleeves are fixedly installed on the sides of the two mounting seats on opposite sides, springs are provided on the inner walls of the two groups of mounting sleeves, one end of the spring is fixedly connected to a slider at one end of a buffer rod, the side of the slider is slidably connected to the inner wall of the mounting sleeve, the other end of the buffer rod is fixedly connected to one side of a mounting ring, the area between the two mounting sleeves is provided with a displacement sensor, and the opposite sides of the two mounting rings are installed and connected through an auxiliary component.

[0006] The auxiliary component includes two groups of connecting rods which are interlaced with the two mounting rings, the opposite ends of the two groups of connecting rods are fixedly connected to the two ends of the telescopic rod, and the surfaces of the other ends of the two groups of connecting rods are provided with locking bolts.

[0007] As a preferred solution of the utility model: the mounting seat is composed of two auxiliary seats, and the two auxiliary seats are each provided with an arc groove on one opposite side, and the inner wall of the arc groove is snap-connected with the surface of the rotating shaft, and the other side of the two auxiliary seats is provided with a socket, and the inner wall of the socket is threadedly connected with the hole groove provided on both sides of the rotating shaft through a limit pin.

[0008] As a preferred solution of the utility model: two clamping holes are provided on the surface of one of the auxiliary seats, and the inner walls of the two clamping holes are clamped and connected with two clamping joints provided on the surface of the other auxiliary seat.

[0009] As a preferred solution of the utility model: the installation ring is composed of two auxiliary rings, one of which has two slots on its surface, and the inner walls of the two slots are engaged with two blocks on the surface of the other auxiliary ring.

[0010] As a preferred solution of the utility model: two through holes are provided on both sides of the two auxiliary rings, and the inner walls of the two groups of through holes are interlaced and connected with the surfaces of the two groups of connecting rods.

[0011] As a preferred solution of the utility model: a cushion block is provided in the middle of one side of the two auxiliary rings, the other side of the cushion block is in a straight line with one end of the displacement sensor, and the other side of the two auxiliary rings is installed and connected with two silicon steel sheets.

[0012] As a preferred solution of the utility model: a cover is provided at one end of the shell, a through hole is opened on the surface of the cover, the inner wall of the through hole is interlaced and connected with the surface of the rotating shaft, and a blade is provided on the surface of the other end of the rotating shaft.

[0013] As a preferred solution of the utility model: a control panel is provided in the middle of the shell surface, an alarm is provided on the surface of the control panel, and the alarm and the displacement sensor are electrically connected to an external power supply through the control panel.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The movement of the rotor is blocked by the mounting ring in cooperation with two silicon steel sheets. The mounting ring drives the two groups of buffer rods to move. The two groups of buffer rods drive the sliders to move in the two groups of mounting sleeves, squeezing the two groups of springs inside them, thereby buffering the radial movement of the two ends of the rotor. At the same time, the mounting ring drives the two pads to move and contact the two displacement sensors on the mounting seat, thereby transmitting the signal to the control panel, cooperating with the alarm to sound an alarm, so as to remind the staff in time;

[0016] (2) The mounting ring is provided to move under the drive of the radial movement of the rotor, and cooperates with two sets of locking bolts, connecting rods and the structure at the other end to drive the two sets of telescopic rods to extend and retract, thereby realizing flexible adjustment between the structures. At the same time, the two mounting rings cooperate with the two sets of connecting rods and the telescopic rods to prevent the rotor from falling and touching the stator after radial movement, thereby preventing damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a partial structural schematic diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the monitoring component and auxiliary components of the utility model.

[0020] In the figure: 1, housing; 11, magnetic bearing; 12, rotating shaft; 13, stator; 14, rotor; 15, hole slot; 16, cover; 17, through hole; 18, blade; 19, control panel; 110, alarm;

[0021] 2. Monitoring assembly; 21. Mounting seat; 211. Auxiliary seat; 212. Arc groove; 213. Socket; 214. Limit pin; 215. Card hole; 216. Card joint; 22. Mounting sleeve; 23. Spring; 24. Buffer rod; 25. Slider; 26. Mounting ring; 261. Auxiliary ring; 262. Card groove; 263. Card block; 264. Through hole; 265. Pad; 266. Silicon steel sheet; 27. Displacement sensor;

[0022] 3. Auxiliary components; 31. Connecting rod; 32. Telescopic rod; 33. Locking bolt. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1 - Figure 3 A fault monitoring device for a magnetic suspension fan comprises a housing 1, two sides of the inner wall of the housing 1 are rotatably connected to a rotating shaft 12 via two magnetic suspension bearings 11, a stator 13 is provided in the middle of the inner wall of the housing 1, a rotor 14 is provided in the middle of the surface of the rotating shaft 12, and monitoring components 2 are provided on the surfaces of the rotating shaft 12 at both ends of the rotor 14;

[0025] See also Figure 3 , monitoring component 2, the monitoring component 2 includes two mounting seats 21 installed on the surface of the rotating shaft 12, two mounting sleeves 22 are fixedly installed on the sides of the opposite sides of the two mounting seats 21, springs 23 are provided on the inner walls of the two groups of mounting sleeves 22, one end of the spring 23 is fixedly connected to a slider 25 at one end of a buffer rod 24, the side of the slider 25 is slidably connected to the inner wall of the mounting sleeve 22, the other end of the buffer rod 24 is fixedly connected to one side of a mounting ring 26, and the area between the two mounting sleeves 22 is provided with a displacement sensor 27, and the opposite sides of the two mounting rings 26 are installed and connected through the auxiliary component 3.

[0026] During specific use: the mounting ring 26 cooperates with the two silicon steel sheets 266 to block the movement of the rotor 14, the mounting ring 26 drives the two groups of buffer rods 24 to move, and the two groups of buffer rods 24 drive the slider 25 to move in the two groups of mounting sleeves 22, squeezing the two groups of springs 23 inside, thereby buffering the radial movement of the two ends of the rotor 14, and at the same time, the mounting ring 26 drives the two pads 265 to move and contact with the two displacement sensors 27 on the mounting seat 21, thereby transmitting the signal to the control panel 19, cooperating with the alarm 110 to sound an alarm, so as to remind the staff in time.

[0027] See also Figure 3 , auxiliary component 3, the auxiliary component 3 includes two groups of connecting rods 31 inserted and connected with the two mounting rings 26, the opposite ends of the two groups of connecting rods 31 are fixedly connected to the two ends of the telescopic rod 32, and the surfaces of the other ends of the two groups of connecting rods 31 are provided with locking bolts 33.

[0028] During specific use: the mounting ring 26 moves driven by the radial movement of the rotor 14, and cooperates with the two sets of locking bolts 33, the connecting rod 31 and the structure at the other end to drive the two sets of telescopic rods 32 to extend and retract, thereby realizing flexible adjustment between the structures. At the same time, the two mounting rings 26 cooperate with the two sets of connecting rods 31 and the telescopic rods 32 to prevent the rotor 14 from falling and touching the stator 13 after radial movement, causing damage.

[0029] See also Figure 3 The mounting seat 21 is composed of two auxiliary seats 211. An arc groove 212 is provided on the opposite side of the two auxiliary seats 211. The inner wall of the arc groove 212 is engaged with the surface of the rotating shaft 12. A socket 213 is provided on the other side of the two auxiliary seats 211. The inner wall of the socket 213 is threadedly connected with the hole groove 15 provided on both sides of the rotating shaft 12 through a limit pin 214.

[0030] During specific use, the two arc grooves 212 on the inner walls of the two auxiliary seats 211 engage with the surface of the rotating shaft 12, and the two limit pins 214 are inserted into the two insertion holes 213 and the hole groove 15, so as to facilitate the installation and removal of the two auxiliary seats 211 and the rotating shaft 12.

[0031] See also Figure 3 Two engaging holes 215 are formed on the surface of one auxiliary seat 211 , and the inner walls of the two engaging holes 215 are engaged with two engaging joints 216 formed on the surface of the other auxiliary seat 211 .

[0032] During specific use, the surfaces of the two clamping joints 216 are clamped with the inner walls of the two clamping holes 215 , so as to facilitate further positioning and fixing of the two auxiliary seats 211 .

[0033] See also Figure 3 The mounting ring 26 is composed of two auxiliary rings 261 , wherein two slots 262 are provided on the surface of one of the auxiliary rings 261 , and the inner walls of the two slots 262 are engaged with two blocks 263 provided on the surface of the other auxiliary ring 261 .

[0034] During specific use, the two clamping blocks 263 are engaged with the inner walls of the two clamping grooves 262 , so as to facilitate the positioning and fixing of the two auxiliary rings 261 .

[0035] See also Figure 3 Two through holes 264 are provided on both sides of the two auxiliary rings 261 , and the inner walls of the two sets of through holes 264 are interlaced and connected with the surfaces of the two sets of connecting rods 31 .

[0036] During specific use, the surfaces of the two groups of connecting rods 31 are inserted and connected with the inner walls of the two groups of through holes 264 , and cooperate with the two groups of locking bolts 33 to facilitate the installation and disassembly of the telescopic rod 32 .

[0037] See also Figure 3 A cushion block 265 is provided in the middle of one side of the two auxiliary rings 261 , and the other side of the cushion block 265 is in a straight line with one end of the displacement sensor 27 , and the other side of the two auxiliary rings 261 is installed and connected with two silicon steel sheets 266 .

[0038] During specific use: the mounting ring 26 drives the two pads 265 to move and contact the two displacement sensors 27 on the mounting seat 21, thereby transmitting the signal to the control panel 19, and cooperating with the alarm 110 to sound an alarm, so as to promptly remind the staff. The characteristics of the two silicon steel sheets 266 prevent the movement of the rotor 14 from causing damage to the mounting ring 26.

[0039] See also Figure 2 A cover 16 is provided at one end of the housing 1 , a through hole 17 is opened on the surface of the cover 16 , the inner wall of the through hole 17 is interlaced and connected with the surface of the rotating shaft 12 , and a blade 18 is provided on the surface of the other end of the rotating shaft 12 .

[0040] When in use, the surface of the rotating shaft 12 is connected through the inner wall of the through hole 17 , thereby cooperating with the two magnetic bearings 11 to drive the blades 18 to rotate.

[0041] See also Figure 2 A control panel 19 is provided in the middle of the surface of the housing 1 , and an alarm 110 is provided on the surface of the control panel 19 . The alarm 110 and the displacement sensor 27 are both electrically connected to an external power source through the control panel 19 .

[0042] During specific use: the control panel 19 is used to control the alarm 110 and the displacement sensor 27, so that the device can monitor and issue an alarm in time when the magnetic suspension fan fails.

[0043] When in use, the mounting ring 26 cooperates with the two silicon steel sheets 266 to block the movement of the rotor 14, and the mounting ring 26 drives the two groups of buffer rods 24 to move. The two groups of buffer rods 24 drive the slider 25 to move in the two groups of mounting sleeves 22, and squeeze the two groups of springs 23 inside, thereby buffering the radial movement of the two ends of the rotor 14. At the same time, the mounting ring 26 drives the two pads 265 to move and contact with the two displacement sensors 27 on the mounting seat 21, thereby transmitting the signal to the control panel 19, and cooperating with the alarm 110 to sound an alarm, so as to promptly remind the staff; the mounting ring 26 moves driven by the radial movement of the rotor 14, and cooperates with the two groups of locking bolts 33, the connecting rod 31 and the structure at the other end to drive the two groups of telescopic rods 32 to telescope, thereby realizing flexible adjustment between the structures, and at the same time, the two mounting rings 26 cooperate with the two groups of connecting rods 31 and the telescopic rods 32 to prevent the rotor 14 from falling and touching the stator 13 after radial movement and causing damage.

[0044] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for technical personnel in the field to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fault monitoring device for a magnetic suspension fan, characterized in that: It comprises a shell (1), the two sides of the inner wall of the shell (1) are rotatably connected to a rotating shaft (12) via two magnetic suspension bearings (11), a stator (13) is provided in the middle of the inner wall of the shell (1), a rotor (14) is provided in the middle of the surface of the rotating shaft (12), and monitoring components (2) are provided on the surfaces of the rotating shaft (12) at both ends of the rotor (14); A monitoring component (2), the monitoring component (2) comprising two mounting seats (21) mounted on the surface of a rotating shaft (12), two mounting sleeves (22) being fixedly mounted on opposite sides of the two mounting seats (21), springs (23) being provided on the inner walls of the two groups of mounting sleeves (22), one end of the spring (23) being fixedly connected to a slider (25) at one end of a buffer rod (24), the side of the slider (25) being slidably connected to the inner wall of the mounting sleeve (22), the other end of the buffer rod (24) being fixedly connected to one side of a mounting ring (26), a displacement sensor (27) being provided in the area between the mounting sleeves (22), and opposite sides of the two mounting rings (26) being mounted and connected via an auxiliary component (3); The auxiliary component (3) comprises two groups of connecting rods (31) which are interlaced and connected with the two mounting rings (26); opposite ends of the two groups of connecting rods (31) are fixedly connected with the two ends of the telescopic rod (32); and locking bolts (33) are provided on the surfaces of the other ends of the two groups of connecting rods (31).

2. A fault monitoring device for a magnetically suspended fan according to claim 1, characterized in that: The mounting seat (21) is composed of two auxiliary seats (211), and an arc groove (212) is provided on opposite sides of the two auxiliary seats (211). The inner wall of the arc groove (212) is engaged with the surface of the rotating shaft (12), and the other side of the two auxiliary seats (211) is provided with a plug hole (213). The inner wall of the plug hole (213) is threadedly connected to the hole groove (15) provided on both sides of the rotating shaft (12) through a limit pin (214).

3. A fault monitoring device for a magnetic suspension fan according to claim 2, characterized in that: Two clamping holes (215) are provided on the surface of one of the auxiliary seats (211), and the inner walls of the two clamping holes (215) are clamped and connected with two clamping joints (216) provided on the surface of the other auxiliary seat (211).

4. A fault monitoring device for a magnetic suspension fan according to claim 3, characterized in that: The mounting ring (26) is composed of two auxiliary rings (261), wherein the surface of one of the auxiliary rings (261) is provided with two clamping grooves (262), and the inner walls of the two clamping grooves (262) are clamped and connected with two clamping blocks (263) provided on the surface of the other auxiliary ring (261).

5. A fault monitoring device for a magnetic suspension fan according to claim 4, characterized in that: Two through holes (264) are provided on both sides of the two auxiliary rings (261), and the inner walls of the two groups of through holes (264) are interlaced and connected with the surfaces of the two groups of connecting rods (31).

6. A fault monitoring device for a magnetically suspended fan according to claim 4, characterized in that: A cushion block (265) is provided in the middle of one side of the two auxiliary rings (261), the other side of the cushion block (265) is in a straight line with one end of the displacement sensor (27), and the other side of the two auxiliary rings (261) is installed and connected with two silicon steel sheets (266).

7. The fault monitoring device for a magnetically suspended fan according to claim 1, characterized in that: A cover (16) is provided at one end of the shell (1), a through hole (17) is provided on the surface of the cover (16), an inner wall of the through hole (17) is interlaced and connected with the surface of the rotating shaft (12), and a blade (18) is provided on the surface of the other end of the rotating shaft (12).

8. The fault monitoring device for a magnetically suspended fan according to claim 1, characterized in that: A control panel (19) is provided in the middle of the surface of the housing (1), an alarm (110) is provided on the surface of the control panel (19), and the alarm (110) and the displacement sensor (27) are both electrically connected to an external power source through the control panel (19).

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