Vibration monitoring device for fan bearing

Abstract

The utility model relates to the technical field of bearing monitoring, and discloses a fan bearing vibration monitoring device which comprises a fixing support, a bearing, a monitoring assembly and an installation assembly, the bearing is fixedly installed at the center of the fixing support, the monitoring assembly comprises a first vibration sensor and a second vibration sensor, and the first vibration sensor and the second vibration sensor are fixedly installed on the fixing support. The first vibration sensor is fixedly installed on the end face of the bearing, an installation groove is formed in the top of the fixing support, the second vibration sensor is arranged in the installation groove and abuts against the circumferential face of the bearing, the installation assembly comprises a fixing base, a stud and an installation base, the fixing base is fixedly connected to the top of the fixing support, and the stud is arranged on the installation base. The stud is in threaded connection with the fixing seat, the mounting seat is rotatably mounted at the lower end of the stud, and the second vibration sensor is fixedly mounted at the bottom of the mounting seat; through the arrangement of the monitoring assembly, the vibration of the bearing can be monitored and early warned, a worker is reminded to shut down for maintenance, and the bearing is prevented from being damaged due to overuse.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing monitoring, in particular to a fan bearing vibration monitoring device. Background Art

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy.

[0003] A fan is a machine that relies on input mechanical energy to increase gas pressure and deliver gas. It is a driven fluid machine. Fan is China's customary abbreviation for gas compression and gas delivery machinery. The fans usually include ventilators, blowers, and wind turbines. During the operation of the fan, in order to ensure the stability of the fan main shaft rotation, it is necessary to install bearings between the main shaft and the frame. When the main shaft speed is too high, the bearings usually vibrate. If the vibration is not monitored in time, the vibration of the bearings will gradually become stronger during high-intensity work. The bearings will vibrate violently for a long time, which is easy to damage the bearings.

[0004] Therefore, how to design a fan bearing vibration monitoring device has become a problem that we currently need to solve. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a fan bearing vibration monitoring device to solve the problems mentioned in the above background technology.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wind turbine bearing vibration monitoring device, comprising a fixed bracket, a bearing, a monitoring assembly and a mounting assembly, wherein the bearing is fixedly mounted at the center of the fixed bracket, the monitoring assembly comprises a first vibration sensor and a second vibration sensor, the first vibration sensor is fixedly mounted on the end surface of the bearing, a mounting groove is provided on the top of the fixed bracket, and the second vibration sensor is arranged in the mounting groove and abuts against the peripheral surface of the bearing;

[0009] The mounting assembly includes a fixing seat, a stud and a mounting seat, the fixing seat is fixedly connected to the top of the fixing bracket, the stud is threadedly connected to the fixing seat, the mounting seat is rotatably mounted on the lower end of the stud, and the second vibration sensor is fixedly mounted on the bottom of the mounting seat.

[0010] Preferably, a knob is fixedly connected to the upper end of the stud.

[0011] Preferably, a guiding groove is formed on the inner side wall of the fixed seat, and guiding rods are fixedly connected to both sides of the mounting seat, with one end of each guiding rod sliding in the guiding groove.

[0012] Preferably, a receiving groove is formed at the bottom of the mounting seat, and the upper end of the second vibration sensor is inserted into the receiving groove.

[0013] Preferably, a connecting groove is formed at the top of the receiving groove, a connecting block is fixedly connected to the top of the second vibration sensor, the connecting block is inserted into the connecting groove, and a connecting screw rod penetrating the connecting block is inserted into one side of the mounting seat.

[0014] Preferably, a positioning groove is formed on one side of the mounting seat, and a positioning pin is inserted into one side of the fixed bracket.

[0015] (III) Advantageous Effects

[0016] The utility model provides a vibration monitoring device for a fan bearing, which has the following advantageous effects:

[0017] Firstly: By providing a monitoring component, the first vibration sensor can monitor the axial vibration of the bearing, and the second vibration sensor can monitor the radial vibration of the bearing. When the first vibration sensor and the second vibration sensor detect that the vibration of the bearing is relatively large, a warning will be given in a timely manner to remind the staff that the working intensity of the bearing is relatively high and it is necessary to stop the machine for maintenance to avoid damage to the bearing due to overuse.

[0018] Secondly: By providing a mounting component, when installing the second vibration sensor, only need to rotate the knob, so that the knob drives the stud to rotate, and the stud drives the mounting seat into the mounting groove, then the second vibration sensor can be installed on the circumferential surface of the bearing, which is convenient for the maintenance of the second vibration sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic sectional view of the utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the mounting seat of the utility model;

[0022] Figure 4 It is a schematic sectional view of the mounting seat of the utility model.

[0023] In the figure: 1. Fixed support; 11. Installation groove; 2. Bearing; 3. Monitoring component; 31. First vibration sensor; 32. Second vibration sensor; 4. Installation component; 41. Fixed seat; 42. Stud; 43. Mounting seat; 44. Knob; 45. Guide groove; 46. Guide rod; 47. Accommodation groove; 48. Connection groove; 49. Connection block; 410. Connection screw; 411. Positioning groove; 412. Positioning pin. Specific embodiments

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0026] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined.

[0027] Such as Figures 1-4As shown in the figure, the utility model provides a technical solution: a vibration monitoring device for a fan bearing, which includes a fixed bracket 1, a bearing 2, a monitoring component 3 and a mounting component 4. The bearing 2 is fixedly installed at the center of the fixed bracket 1. The monitoring component 3 includes a first vibration sensor 31 and a second vibration sensor 32. Both the first vibration sensor 31 and the second vibration sensor 32 are connected to the controller of the fan, and the controller is connected to the terminal device through a wireless signal transmitter. The first vibration sensor 31 is fixedly installed on the end face of the bearing 2. An installation groove 11 is formed at the top of the fixed bracket 1. The second vibration sensor 32 is arranged in the installation groove 11 and abuts against the circumferential surface of the bearing 2. By setting the monitoring component 3, the first vibration sensor 31 can monitor the axial vibration of the bearing 2, and the second vibration sensor 32 can monitor the radial vibration of the bearing 2. When the first vibration sensor 31 and the second vibration sensor 32 detect that the vibration of the bearing 2 is relatively large, a warning will be issued in time to remind the staff that the working intensity of the bearing is relatively high and it is necessary to stop the machine for maintenance to avoid damage to the bearing due to overuse.

[0028] Referring to Figure 1 and Figure 2 , the mounting component 4 includes a fixed seat 41, a stud 42 and a mounting seat 43. The fixed seat 41 is fixedly connected to the top of the fixed bracket 1. The stud 42 is threadedly connected to the fixed seat 41. The upper end of the stud 42 is fixedly connected with a knob 44. The mounting seat 43 is rotatably installed at the lower end of the stud 42. The second vibration sensor 32 is fixedly installed at the bottom of the mounting seat 43. By setting the mounting component 4, when installing the second vibration sensor 32, only need to rotate the knob 44, so that the knob 44 drives the stud 42 to rotate, and the stud 42 drives the mounting seat 43 into the installation groove 11, then the second vibration sensor 32 can be installed on the circumferential surface of the bearing 2, which is convenient for the maintenance of the second vibration sensor 32. A guiding groove 45 is formed on the inner side wall of the fixed seat 41. Guide rods 46 are fixedly connected to both sides of the mounting seat 43. One end of the guide rod 46 slides in the guiding groove 45. Through the cooperation of the guiding groove 45 and the guide rod 46, the mounting seat 43 can be guided.

[0029] Furthermore, a positioning groove 411 is formed on one side of the mounting seat 43, and a positioning pin 412 is inserted into one side of the fixed bracket 1. By setting the positioning groove 411 and the positioning pin 412, the mounting seat 43 can be positioned.

[0030] Referring to Figure 3 and Figure 4, a receiving groove 47 is formed at the bottom of the mounting base 43, the upper end of the second vibration sensor 32 is inserted into the receiving groove 47, a connecting groove 48 is formed at the top of the receiving groove 47, a connecting block 49 is fixedly connected to the top of the second vibration sensor 32, the connecting block 49 is inserted into the connecting groove 48, and a connecting screw 410 passing through the connecting block 49 is inserted into one side of the mounting base 43. By providing the receiving groove 47, the connecting groove 48, the connecting block 49 and the connecting screw 410, the second vibration sensor 32 can be removed from the mounting base 43, facilitating the replacement of the second vibration sensor 32.

[0031] The working process of the present utility model: By providing the mounting assembly 4, when installing the second vibration sensor 32, only need to rotate the knob 44, so that the knob 44 drives the stud 42 to rotate, and the stud 42 drives the mounting base 43 into the mounting groove 11, then the second vibration sensor 32 can be installed on the circumferential surface of the bearing 2. By providing the monitoring assembly 3, the first vibration sensor 31 can monitor the axial vibration of the bearing 2, and the second vibration sensor 32 can monitor the radial vibration of the bearing 2. When the first vibration sensor 31 and the second vibration sensor 32 detect that the vibration of the bearing 2 is relatively large, an early warning will be given in time to remind the staff that the working intensity of the bearing is relatively high and it is necessary to stop the machine for maintenance to avoid damage to the bearing due to overuse.

[0032] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A vibration monitoring device for a fan bearing, comprising a fixed bracket (1), a bearing (2), a monitoring component (3) and a mounting component (4), characterized in that: The bearing (2) is fixedly installed at the center of the fixed bracket (1). The monitoring assembly (3) includes a first vibration sensor (31) and a second vibration sensor (32). The first vibration sensor (31) is fixedly installed on the end face of the bearing (2). An installation groove (11) is formed at the top of the fixed bracket (1). The second vibration sensor (32) is arranged in the installation groove (11) and abuts against the circumferential surface of the bearing (2). The installation assembly (4) includes a fixed seat (41), a stud (42) and an installation seat (43). The fixed seat (41) is fixedly connected to the top of the fixed bracket (1). The stud (42) is threadedly connected to the fixed seat (41). The installation seat (43) is rotatably installed at the lower end of the stud (42). The second vibration sensor (32) is fixedly installed at the bottom of the installation seat (43).

2. The vibration monitoring device for a fan bearing according to claim 1, wherein: A knob (44) is fixedly connected to the upper end of the stud (42).

3. The vibration monitoring device for a fan bearing according to claim 1, characterized in that: A guide groove (45) is formed on the inner side wall of the fixed seat (41). Guide rods (46) are fixedly connected to both sides of the installation seat (43). One end of each guide rod (46) slides in the guide groove (45).

4. A vibration monitoring device for a fan bearing according to claim 1, characterized in that: A receiving groove (47) is formed at the bottom of the installation seat (43). The upper end of the second vibration sensor (32) is inserted into the receiving groove (47).

5. The vibration monitoring device for a fan bearing according to claim 4, wherein: A connection groove (48) is formed at the top of the receiving groove (47). A connection block (49) is fixedly connected to the top of the second vibration sensor (32). The connection block (49) is inserted into the connection groove (48). A connection screw (410) passing through the connection block (49) is inserted into one side of the installation seat (43).

6. The vibration monitoring device for a fan bearing according to claim 1, characterized in that: A positioning groove (411) is formed on one side of the installation seat (43). A positioning pin (412) is inserted into one side of the fixed bracket (1).

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