Miniature vibration sensor fixing clamp used on rotating shaft

Abstract

The utility model discloses a miniature vibration sensor fixing clamp used on a rotating shaft, which relates to the technical field of sensor fixing and comprises a transmission shaft, an upper clamp, a lower clamp and a fixing device. A key groove is formed in the surface of the transmission shaft. The upper clamp and the lower clamp are fixed to the surface of the transmission shaft. The fixing device comprises two bolts and a sensor base, the two bolts are both installed in the upper clamp, two bolt notches are formed in the surface of the lower clamp, the lower ends of the two bolts are in threaded connection with the interiors of the two bolt notches respectively, and the sensor base is fixedly connected to the top of the upper clamp. A plurality of key groove positions are distributed on the inner side of the upper clamp and the inner side of the lower clamp and can be used for adjusting the installation direction, meanwhile, the key groove positions are matched with the key grooves, the clamps are prevented from slipping, the installation stability is improved, the signal collection quality is guaranteed, and the clamping device for the mechanical MEMS sensor can be applied to a vibration signal sensing sensor.

Description

Technical Field

[0001] This utility model relates to the field of sensor fixing technology, and in particular to a fixing clip for a miniature vibration sensor on a rotating shaft. Background Technology

[0002] Regularly monitoring the operating status of critical equipment components is essential for ensuring safe and stable operation. Vibration signals are a simple and effective source of fault signals. Currently, wired sensors are commonly used, but these are inconvenient to install in narrow spaces and are limited by cable length, affecting the convenience of equipment status monitoring. Therefore, a miniature wireless sensing device based on MEMS technology has been developed. This sensor is small, lightweight, and easy to install. Vibration signals can be transmitted wirelessly via Bluetooth, eliminating cable limitations.

[0003] This type of sensing device requires a rigid connection with the monitored device to monitor its vibration signal. Currently, there are few similar clamping devices for mechanical MEMS sensors. There are only fixing clips for temperature and wheel speed sensors, which cannot be applied to vibration signal sensing sensors. Based on this situation, a fixing clip is designed for this micro sensor to ensure stable signal acquisition. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a micro vibration sensor fixing clip for rotating shafts. This can solve the problem that there are few similar clamping devices for mechanical MEMS sensors, and there are only fixing clips for temperature and wheel speed sensors, which cannot be applied to vibration signal sensing sensors.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a micro vibration sensor fixing clip for a rotating shaft, comprising a drive shaft, an upper clip, a lower clip, and a fixing device; a keyway is provided on the surface of the drive shaft, and the upper clip and the lower clip are fixed to the surface of the drive shaft; the fixing device includes two bolts and a sensor base, both bolts are installed inside the upper clip, and two bolt slots are provided on the surface of the lower clip, the lower ends of the two bolts are threaded into the two bolt slots respectively, and the sensor base is fixedly connected to the top of the upper clip.

[0006] The sensor base has mounting holes on its surface, and a sensor processing chip is fixedly installed inside the mounting holes.

[0007] A sensor processing chip is mounted on the top of the sensor base.

[0008] The sensor housing is fixedly mounted on the top of the sensor base, and four screws are installed on the sensor housing.

[0009] Four mounting blocks are fixedly connected to the top of the sensor base, and screw slots are opened on the surface of each of the four mounting blocks.

[0010] The sensor housing is slidably connected to the surface of four mounting blocks, and four screws are threaded into the interior of four screw slots.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This clamp for fixing a miniature vibration sensor on a rotating shaft has multiple keyways distributed on the inner sides of the upper and lower clamps. These keyways can be used to adjust the installation orientation and, in conjunction with the keyways, prevent the clamp from slipping, improve installation stability, and ensure the quality of signal acquisition. This clamping device for mechanical MEMS sensors can be applied to vibration signal sensing sensors. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0014] Figure 1 This is a schematic diagram of the overall structure of a micro vibration sensor fixing clip for a rotating shaft according to the present invention;

[0015] Figure 2 This is a schematic diagram showing the disassembled structure of a micro vibration sensor fixing clip for a rotating shaft according to the present invention;

[0016] Figure 3 This is a schematic diagram of the internal structure of the upper clip of this utility model;

[0017] Figure 4 This is a schematic diagram showing the disassembled structure of the upper and lower clips of this utility model.

[0018] Reference numerals: 1. Drive shaft; 2. Keyway; 3. Upper clamp; 4. Bolt; 5. Lower clamp; 6. Bolt slot; 7. Sensor base; 8. Mounting hole; 9. Sensor processing chip; 10. Sensor processing chip; 11. Sensor housing; 12. Screw; 13. Mounting block; 14. Screw slot. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a micro vibration sensor fixing clip for a rotating shaft, including a drive shaft 1, an upper clip 3, a lower clip 5, and a fixing device; a keyway 2 is provided on the surface of the drive shaft 1, the upper clip 3 and the lower clip 5 are fixed to the surface of the drive shaft 1, the fixing device includes two bolts 4 and a sensor base 7, the two bolts 4 are installed inside the upper clip 3, the surface of the lower clip 5 has two bolt slots 6, the lower ends of the two bolts 4 are respectively threaded into the two bolt slots 6, and the sensor base 7 is fixedly connected to the top of the upper clip 3.

[0023] When acquiring signals, the upper clip 3 and the lower clip 5 are separated and clamped onto the shaft surface of the drive shaft 1. The installation positions of the upper clip 3 and the lower clip 5 are located by the keyway 2. The upper clip 3 is connected to the two bolt slots 6 by two bolts 4 through the preset holes on the upper clip 3, thereby connecting and securing the upper and lower parts, so that the upper clip 3 and the lower clip 5 are tightly connected to the drive shaft 1. The top of the upper clip 3 is provided with a slot for placing the sensor base 7. The sensor base 7 is connected to the upper clip 3 by a magnetic base. At this time, the two are in contact, and vibration signals can be acquired.

[0024] The sensor base 7 has mounting holes 8 on its surface. A sensor processing chip 9 is fixedly installed inside the mounting holes 8. A sensor processing chip 10 is installed on the top of the sensor base 7. A sensor housing 11 is fixedly installed on the top of the sensor base 7. Four screws 12 are installed on the sensor housing 11. Four mounting blocks 13 are fixedly connected to the top of the sensor base 7. Each of the four mounting blocks 13 has a screw slot 14 on its surface. The sensor housing 11 is slidably connected to the surface of the four mounting blocks 13. The four screws 12 are threaded into the four screw slots 14 respectively.

[0025] The sensor base 7, sensor processing chip 9, sensor processing chip 10, and sensor housing 11 are integrated into a single unit. The sensor base 7 serves as the base for the sensor, and the sensor processing chip 10 is bonded and fixed to the sensor base 7. The sensor processing chip 10 and sensor processing chip 9 are connected by a cable to form an integrated sensing device. The upper clip 3 and lower clip 5 are mounted on the drive shaft 1. The micro-sensor is located on the top of the upper clip 3 and is attached to the upper clip 3 via a magnetic base to monitor the vibration of the drive shaft 1. Multiple keyways are distributed on the inner sides of the upper clip 3 and lower clip 5, which can be used to adjust the installation orientation. At the same time, they cooperate with the keyway 2 to prevent the clips from slipping, improve the stability of the installation, and ensure the quality of signal acquisition. This clamping device for mechanical MEMS sensors can be applied to vibration signal sensing sensors.

[0026] Working principle: This micro vibration sensor mounting clip for rotating shafts separates the upper clip 3 and lower clip 5 when acquiring signals and clamps them onto the shaft surface of the drive shaft 1. The installation positions of the upper clip 3 and lower clip 5 are positioned by the keyway 2. Two bolts 4 are threaded into the two bolt slots 6 through the pre-set holes on the upper clip 3 to connect and secure the upper and lower parts, ensuring a tight connection between the upper clip 3 and lower clip 5 and the drive shaft 1. The top of the upper clip 3 has a slot for placing the sensor base 7. The upper clamp 3 is connected to the lower clamp 5 via a magnetic base. When the two are in contact, vibration signals can be collected. The micro sensor is located on the top of the upper clamp 3 and is in contact with the upper clamp 3 via the magnetic base to monitor the vibration of the drive shaft 1. Multiple keyways are distributed on the inner sides of the upper clamp 3 and the lower clamp 5, which can be used to adjust the installation position. At the same time, they cooperate with the keyway 2 to prevent the clamps from slipping, improve the stability of the installation, and ensure the quality of signal acquisition. This clamping device for mechanical MEMS sensors can be applied to vibration signal sensing sensors.

[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A clamp for fixing a miniature vibration sensor on a rotating shaft, characterized in that, include: Drive shaft (1), upper clamp (3), lower clamp (5) and fixing device; A keyway (2) is provided on the surface of the drive shaft (1), and an upper clamp (3) and a lower clamp (5) are fixed to the surface of the drive shaft (1); The fixing device includes two bolts (4) and a sensor base (7). The two bolts (4) are installed inside the upper clamp (3). The surface of the lower clamp (5) has two bolt slots (6). The lower ends of the two bolts (4) are threaded into the two bolt slots (6). The sensor base (7) is fixedly connected to the top of the upper clamp (3).

2. The miniature vibration sensor fixing clip for a rotating shaft according to claim 1, characterized in that: The sensor base (7) has a mounting hole (8) on its surface, and a sensor processing chip (9) is fixedly installed inside the mounting hole (8).

3. A clamp for fixing a miniature vibration sensor on a rotating shaft according to claim 1, characterized in that: A sensor processing chip (10) is mounted on the top of the sensor base (7).

4. A clamp for fixing a miniature vibration sensor on a rotating shaft according to claim 1, characterized in that: The sensor housing (11) is fixedly installed on the top of the sensor base (7), and four screws (12) are installed on the sensor housing (11).

5. A micro vibration sensor fixing clip for a rotating shaft according to claim 4, characterized in that: The top of the sensor base (7) is fixedly connected to four mounting blocks (13), and each of the four mounting blocks (13) has a screw slot (14) on its surface.

6. A clamp for fixing a miniature vibration sensor on a rotating shaft according to claim 5, characterized in that: The sensor housing (11) is slidably connected to the surface of four mounting blocks (13), and four screws (12) are threaded into the interior of four screw slots (14).

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