CN216978118U

CN216978118U - Triaxial composite vibration temperature integrated sensor

Info

Publication number: CN216978118U
Application number: CN202122520066.1U
Authority: CN
Inventors: 刘清华; 张学辉; 张海鸥; 邵彦顺; 邸小花; 张剑
Original assignee: Shanghai Qisheng Intelligent Technology Co ltd
Current assignee: Shanghai Qizhi Technology Co ltd
Priority date: 2021-10-19
Filing date: 2021-10-19
Publication date: 2022-07-15
Anticipated expiration: 2031-10-19

Abstract

The utility model is suitable for the technical field of equipment monitoring, and provides a three-axis composite vibration and temperature integrated sensor, which comprises: the base, the casing, its detachable fixed connection in the top of base, and, be located the inside of casing still is provided with and is used for carrying out the monitoring part that monitors to X under the equipment operating condition, Y to, Z to vibration frequency and the temperature under the operating condition respectively, wherein, a plurality of logical grooves have still been seted up at the top of casing, every it all runs through to be provided with the electricity in the logical inslot and is connected to cable on the monitoring part is through a plurality of the cable is used for carrying vibration frequency and temperature data, can gather the vibration and the temperature information of three direction simultaneously, is equivalent to three single-axis sensor's utility, has the wide characteristics of frequency response scope concurrently, satisfies the state monitoring needs of equipment such as motor, fan, pump crowd, and the price is substantial, can use widely on a large scale in being applied to equipment state monitoring trade.

Description

Triaxial composite vibration temperature integrated sensor

Technical Field

The utility model belongs to the technical field of equipment monitoring, and particularly relates to a three-axis composite vibration and temperature integrated sensor.

Background

The method is the most common and effective method in mechanical fault diagnosis, wherein vibration, temperature, sound and other information generated by mechanical equipment in the operation process are main signals reflecting the operation state of the mechanical equipment, the temperature and the vibration are two most important parameters, the two parameters need to be measured when most of rotary equipment carries out state monitoring, and the dynamic signals are obtained through various vibration sensors and temperature sensing chips, so that the method is a main way for state monitoring and fault diagnosis of the mechanical equipment.

The prior art currently has the following disadvantages:

firstly, the conventional vibration sensor can only collect unidirectional vibration;

secondly, the vibration frequency response range of the conventional common three-axis sensor in the market cannot meet the requirement of state monitoring of equipment such as a motor, a fan, a pump group and the like;

and thirdly, the triaxial sensor with a high frequency response range is high in price and is not suitable for large-scale use and popularization.

SUMMERY OF THE UTILITY MODEL

The utility model provides a three-axis composite vibration and temperature integrated sensor, which aims to solve the problems in the background technology.

The utility model is realized in this way, the three-axis compound vibration temperature integrated sensor, including: the base, casing, its detachable fixed connection in the top of base, and, be located the inside of casing still is provided with the monitoring part that is used for respectively carrying out the monitoring to X under the equipment operating condition to, Y to, Z to vibration frequency and operating condition's temperature, wherein, a plurality of logical grooves have still been seted up at the top of casing, every it all runs through to be provided with the electricity and connects to lead to the cable on the monitoring part, through a plurality of the cable is used for carrying the monitoring data of X under the equipment operating condition to, Y to, Z to vibration frequency and operating condition's temperature respectively.

Preferably, the monitoring means comprises: the printed circuit board is symmetrically provided with two electric connections along the height direction respectively, and is used for carrying out the piezoelectric patches that detect to equipment Y to vibration frequency, wherein, is located the below the piezoelectric patches butt is fixed in the top of base, and, still be provided with on the printed circuit board and be used for carrying out the vibration chip that detects to equipment X to, Z to vibration frequency to and one be used for carrying out the detection chip that detects to equipment temperature, it is a plurality of the cable is equallyd divide do not the electricity connect in on the printed circuit board.

Preferably, the two vibrating chips are MEMS ADXL326 triaxial vibrating chips, and the detecting chip is a DS18B20 chip.

Preferably, a mass block is further disposed on the top of the piezoelectric sheet above, and an elastic cushion layer is further disposed between the inner top wall of the housing and the mass block.

Preferably, the bottom of the housing is integrally formed with an annular extension plate, an external thread is arranged on the outer wall of the extension plate, an annular accommodating groove capable of accommodating the extension plate is further formed in the top of the base, and an internal thread matched with the external thread in a threaded manner is formed in the inner wall of the accommodating groove.

Preferably, a first magnetic part fixedly connected with the inner bottom wall of the housing is further arranged on the outer side of the extension plate, and a second magnetic part magnetically connected with the first magnetic part is further arranged on the base on the outer side of the accommodating groove.

Compared with the prior art, the utility model has the beneficial effects that: the utility model relates to a three-axis composite vibration temperature integrated sensor, which comprises:

the vibration and the temperature information of three direction can be gathered simultaneously, and the utility that is equivalent to three conventional single-axis sensor has the wide characteristics of frequency response scope concurrently, satisfies the state monitoring needs of equipment such as motor, fan, pump crowd, and the price is substantial simultaneously, can use widely on a large scale in being applied to equipment state monitoring trade.

Drawings

FIG. 1 is a front cross-sectional view of the present invention;

FIG. 2 is a schematic view of the structure of the printed circuit board of the present invention;

FIG. 3 is a top view of the present invention;

FIG. 4 is a view showing an installation structure of the housing and the base in the present invention;

FIG. 5 is a top view of the base of the present invention;

in the figure:

1. a base; 11. a containing groove; 12. a second magnetic member;

2. a housing; 21. a through groove; 22. an extension plate; 221. an external thread; 23. a first magnetic member;

3. a monitoring component; 31. a printed circuit board; 32. a piezoelectric sheet; 33. vibrating the chip; 34. detecting a chip; 35. a mass block; 36. an elastic cushion layer;

4. an electrical cable.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments, it being understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

Referring to fig. 1, 3 and 5, the present invention provides a technical solution:

compound vibration temperature integral type sensor of triaxial includes: the device comprises a base 1 and a shell 2, wherein the shell is detachably and fixedly connected to the top of the base 1;

an annular extension plate 22 is integrally formed at the bottom of the shell 2, external threads 221 are arranged on the outer wall of the extension plate 22, an annular accommodating groove 11 capable of accommodating the extension plate 22 is further formed at the top of the base 1, and internal threads matched with the external threads 221 in a threaded manner are formed on the inner wall of the accommodating groove 11;

a first magnetic member 23 fixedly connected to the inner bottom wall of the housing 2 is further disposed on the outer side of the extension plate 22, and a second magnetic member 12 magnetically connected to the first magnetic member 23 is further disposed on the base 1 outside the accommodating groove 11.

Specifically, the staff is when assembling casing 2, at first, insert casing 2 bottom integrated into one piece's extension board 22 in the storage tank 11 that base 1 top was seted up, then, through mutually supporting between external screw thread 221 and the internal thread, thereby make extension board 22 progressively extend to in the storage tank 11, and then, make laminating each other between casing 2's bottom and base 1's the top, thereby accomplished the assembly of casing 2 on base 1, and then, guaranteed that its inside monitoring part 3 can normally work.

It should be noted that, in order to ensure the connection tightness between the housing 2 and the base 1, in this embodiment, the worker further sets a circle of the first magnetic member 23 around the extension plate 22, and sets the second magnetic member 12 on the base 1 outside the accommodating groove 11, preferably, the first magnetic member 23 and the second magnetic member 12 have opposite magnetism, and meanwhile, during the assembling process of the housing 2, the first magnetic member 23 will gradually attract the second magnetic member 12, so as to further ensure the tight connection between the housing 2 and the base 1, and avoid the two phenomena of loosening and shifting during the subsequent use.

Referring to fig. 1-3, a monitoring component 3 for monitoring the vibration frequency in the X direction, the Y direction, and the Z direction of the device and the temperature in the operating state is further disposed inside the housing 2, wherein a plurality of through slots 21 are further disposed on the top of the housing 2, a cable 4 electrically connected to the monitoring component 3 is disposed in each through slot 21, and the plurality of cables 4 are used for respectively transmitting the monitoring data of the vibration frequency in the X direction, the Y direction, and the Z direction of the device and the temperature in the operating state;

the monitoring section 3 includes: the printed circuit board 31 is respectively and symmetrically provided with two piezoelectric sheets 32 which are electrically connected and used for detecting the vibration frequency of the equipment in the Y direction along the height direction, wherein the piezoelectric sheet 32 positioned below is abutted and fixed on the top of the base 1, the printed circuit board 31 is also provided with a vibration chip 33 used for detecting the vibration frequency of the equipment in the X direction and the Z direction and a detection chip 34 used for detecting the temperature of the equipment, and a plurality of cables 4 are respectively and electrically connected on the printed circuit board 31;

both vibrating chips 33 are MEMS ADXL326 triaxial vibrating chips, and the detecting chip 34 is a DS18B20 chip.

Specifically, the output of the electric charge of the piezoelectric sheet 32 is in direct proportion to the received force, the received force is in direct proportion to the acceleration value under the condition that the sensitive quality is certain, and the electric charge quantity generated after the piezoelectric sheet 32 is stressed is in direct proportion to the sensed acceleration value under a certain condition, so that the piezoelectric sensor has the characteristics of large dynamic range, wide frequency range, firmness and durability, small external interference, no need of any external power supply for the self-generated electric charge signal generated by the piezoelectric material under stress, and the like, therefore, the piezoelectric sheet 32 is used in the Y direction, the frequency response range meets 2-10000Hz, high-frequency and low-frequency vibration signals are considered, after the high-frequency acceleration is collected, the high-frequency acceleration can be subjected to resonance demodulation technology processing, and envelope signals for impact fault analysis of a bearing, a gear box and the like are obtained; further, the vibration frequency in the Y direction is transmitted to external equipment through the printed circuit board 31 and the connected cable 4, vibration speed and displacement information of the equipment are mainly collected in the X direction and the Z direction, the requirements of the standard on speed and displacement monitoring are met, the frequency response width is 2-1000Hz, and an ADXL326 triaxial vibration chip 33 of the MEMS is selected to be purchased;

meanwhile, when the device works, the temperature of the equipment can be monitored in real time through the detection chip 34 on the printed circuit board 31, and the detected temperature is conveyed to external equipment through the cable 4 connected with the printed circuit board 31.

It should be noted that the frequency response in the main direction, i.e. the Y direction, reaches 2-10000Hz, so that the requirements on the stiffness and the resonant frequency are high only in the Y direction, and the requirements on the stiffness and the resonant frequency are low when the frequency response in the X, Z direction is 2-1000 Hz.

Referring to fig. 1, a mass block 35 is further disposed on the top of the upper piezoelectric sheet 32, and an elastic cushion 36 is further disposed between the inner top wall of the housing 2 and the mass block 35.

Specifically, the mass block 35 that sets up can realize the stable support to piezoelectric patches 32 and printed circuit board 31, avoid it to appear rocking in the inside of casing 2, improved the holistic stability of monitoring part 3, simultaneously, set up elastic cushion 36 between the top of mass block 35 and the interior roof of casing 2, preferably, elastic cushion 36 in this embodiment is the spring, play aim at, can reduce the impact injury that mass block 35 and piezoelectric patches 32 received, the life of equipment has been prolonged.

The working principle and the using process of the utility model are as follows: after the utility model is installed:

through two piezoelectric patches 32, two vibration chips 33 and one detect chip 34, can gather the vibration and the temperature information of three direction simultaneously, be equivalent to three ordinary single-axis sensor's utility, have the wide characteristics of frequency response scope concurrently, satisfy the state monitoring needs of equipment such as motor, fan, pump crowd, the cost is with low costs simultaneously, and the price is substantial, can be using widely on a large scale in the monitoring industry of being applied to equipment state.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. Compound vibration temperature integral type sensor of triaxial, its characterized in that includes:

a base (1);

the shell (2) is detachably and fixedly connected to the top of the base (1);

in addition, monitoring components (3) which are respectively used for monitoring the vibration frequency in the X direction, the Y direction and the Z direction under the working state of the equipment and the temperature under the working state are also arranged in the shell (2);

wherein the top of the shell (2) is also provided with a plurality of through grooves (21);

a cable (4) electrically connected to the monitoring part (3) penetrates through each through groove (21);

the monitoring data of the vibration frequency in the X direction, the vibration frequency in the Y direction and the vibration frequency in the Z direction under the working state of the equipment and the temperature under the working state are respectively transmitted through a plurality of cables (4).

2. The three-axis composite vibration and temperature integrated sensor according to claim 1, wherein the monitoring part (3) comprises:

the printed circuit board (31) is respectively and symmetrically provided with two piezoelectric sheets (32) which are electrically connected and used for detecting the Y-direction vibration frequency of the equipment along the height direction;

the piezoelectric sheet (32) positioned at the lower part is abutted and fixed on the top of the base (1);

the printed circuit board (31) is also provided with a vibration chip (33) for detecting the X-direction vibration frequency and the Z-direction vibration frequency of the equipment and a detection chip (34) for detecting the temperature of the equipment;

the cables (4) are electrically connected to the printed circuit board (31).

3. The three-axis composite vibration temperature integrated sensor according to claim 2, wherein both of the vibration chips (33) are MEMS ADXL326 three-axis vibration chips, and the detection chip (34) is a DS18B20 chip.

4. The three-axis composite vibration and temperature integrated sensor according to claim 2, wherein a mass (35) is further provided on the top of the piezoelectric sheet (32) located above;

and an elastic cushion layer (36) is also arranged between the inner top wall of the shell (2) and the mass block (35).

5. The three-axis composite type vibration temperature integrated sensor according to claim 1, wherein an annular extension plate (22) is integrally formed at the bottom of the housing (2);

the outer wall of the extension plate (22) is provided with an external thread (221);

the top of the base (1) is also provided with an annular containing groove (11) which can contain the extension plate (22);

and the inner wall of the accommodating groove (11) is provided with an internal thread which is in threaded connection and matched with the external thread (221).

6. The three-axis composite vibration and temperature integrated sensor as claimed in claim 5, wherein a first magnetic member (23) fixedly connected with the bottom wall of the housing (2) is further provided at the outer side of the extension plate (22);

and a second magnetic part (12) which is in magnetic adsorption connection with the first magnetic part (23) is further arranged on the base (1) outside the accommodating groove (11).