Product on-line detection vibration sensor structure

Abstract

The utility model relates to the technical field of vibration detection, in particular to a product on-line detection vibration sensor structure which comprises a sensor assembly, a rubber part and a connecting part, and the sensor assembly and the connecting part are arranged at the two ends of the rubber part respectively. The sensor assembly and the rubber member can be installed on the detection tool through the connecting member. When the test sample piece is detected, the detection tool compresses the rubber piece to provide pressing force for the sensor assembly, so that the sensor assembly is tightly attached to the test sample piece. The rubber part is the cylinder with one end in the hemispherical shape, and the adjusting hole is formed in the rubber part, so that the rubber part has stability in the direction and rigidity adjustability. According to the vibration sensor, the problem that the available frequency range is small can be effectively solved, the available frequency response frequency range of the vibration sensor is improved, the vibration isolation rate is better, the pressing force on a test sample piece is moderate, and the working stability under the long-time working state and the vibration effect can be kept.

Description

TECHNICAL FIELD

[0001] The utility model relates to vibration detection technical field, concretely relates to a product online detection vibration sensor structure. BACKGROUND

[0002] At present, the vibration detection of product is an essential link in the off-line detection of the rotating mechanical assembly such as electric drive, gearbox, reduction gearbox, drive motor, electronic pump and mechanical pump, the time domain vibration signal of the test sample under different working conditions can be obtained through the vibration sensor, and whether the test sample meets the examination index can be judged through data analysis by professional software. The off-line detection of these products is mostly automatic detection, and there is a higher requirement on the rhythm.

[0003] At present, the vibration sensor tool that can provide compression force is mostly used in the industry, the vibration sensor is usually installed on the bench tool, and the compression force is mainly provided in the form of rubber spring, air spring, disc spring, cylindrical spring and combination of several forms.

[0004] When carrying out off-line detection, the sensor is close to the test sample, and the vibration sensor will vibrate, which puts forward higher requirements on the installation and self-reliability of the vibration sensor, at the same time, the structure of these springs and the linearity of compression force and stiffness seriously affect the frequency response characteristic of the vibration sensor; in addition, the production line rhythm is higher, and the compression frequency and service life of the tool are also higher, generally need to withstand more than 100,000 times of compression, therefore, the overall structure of the vibration sensor has higher requirements. UTILITY MODEL CONTENTS

[0005] In view of the above problems existing in the prior art, the utility model provides a product online detection vibration sensor structure.

[0006] In order to solve the above technical problems, the utility model solves them through the following technical schemes:

[0007] A product online detection vibration sensor structure, which comprises a sensor assembly, a rubber part and a connecting piece, the sensor assembly and the connecting piece are arranged at two ends of the rubber part respectively; the sensor assembly and the rubber part can be installed on a detection tool through the connecting piece;

[0008] When detecting the test sample, the detection tool provides compression force for the sensor assembly by compressing the rubber part, so that the sensor assembly is close to the test sample.

[0009] Preferably, a first connecting seat is arranged on the first end of the rubber part, and the sensor assembly is fixedly connected to the first connecting seat.

[0010] As preferred, the sensor assembly is fixedly installed on the first connecting seat in a threaded connection manner through the stud.

[0011] As preferred, a second connecting seat is arranged on the second end of the rubber piece, and the connecting piece is fixedly connected on the second connecting seat.

[0012] As preferred, the connecting piece is fixedly installed on the second connecting seat in a threaded connection manner.

[0013] As preferred, at least one adjusting hole is arranged on the rubber piece.

[0014] The utility model at least has the following beneficial effects:

[0015] 1, the component part of the shock sensor of the application is less, adopts rubber piece and reduces the precision requirement to machine spare, the rubber piece is the cylinder of one end hemispherical shape, and the adjusting hole is arranged on the rubber piece, so that there is the stability in direction and the rigidity of adjustability.

[0016] 2, the shock sensor of the application can effectively improve the problem of small usable frequency range, improves the usable frequency range of shock sensor, and the shock isolation rate is better, the compression force of test sample is moderate, and can keep the working stability under the working state of long time and under the action of shock. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 The first kind of assembly schematic view of sensor assembly, rubber piece and connecting piece in part embodiment of the application is shown;

[0018] Fig. 2 The second kind of assembly schematic view of sensor assembly, rubber piece and connecting piece in part embodiment of the application is shown;

[0019] Fig. 3 The sectional view of sensor assembly, rubber piece and connecting piece after assembly in part embodiment of the application is shown.

[0020] The part names of each number mark in the drawing are as follows:

[0021] 100, sensor assembly;110, first threaded hole;200, rubber piece;210, first connecting seat;211, second threaded hole;220, second connecting seat;221, third threaded hole;230, adjusting hole;300, connecting piece;310, screw rod;320, external thread;400, stud. DETAILED DESCRIPTION

[0022] For further understanding of the present application, the application will be described in detail with reference to the drawings and embodiments. It should be understood that the embodiments are only used to explain the present application but not to limit the present application.

[0023] As shown in Figs. 1-3 The present embodiment provides a product online detection vibration sensor structure, which comprises a sensor assembly 100, a rubber piece 200 and a connecting piece 300, wherein the sensor assembly 100 is connected with the first end of the rubber piece 200, and the connecting piece 300 is connected with the second end of the rubber piece 200. When in use, the vibration sensor assembled by the sensor assembly 100, the rubber piece 200 and the connecting piece 300 is installed on a detection tool (not shown in the figure) through the connecting piece 300, the detection tool can move the vibration sensor to a test sample (not shown in the figure), so that the end of the sensor assembly 100 away from the rubber piece 200 abuts on the test sample, and then the detection tool can apply pressure to the vibration sensor through an electric cylinder or a pneumatic cylinder, so that the sensor assembly 100 is further pressed and tightly attached to the test sample, so that the rubber piece 200 is compressed and deformed, and then the rubber piece 200 can provide a pressing force for the sensor assembly 100, so that the vibration sensor has better frequency response characteristics and can maintain working stability in a long time working state and under the action of vibration, and then the test sample can be better detected.

[0024] It is worth mentioning that the rubber piece 200 in the present embodiment is made of natural rubber, and the uniformity of rigidity is better than that of the spring currently used, so that the shock isolation effect is better.

[0025] In some embodiments, the rubber piece 200 is in a cylindrical shape as a whole, and the first end of the rubber piece 200 connected with the sensor assembly 100 is in a hemispherical shape. Generally, when testing the test sample, the vibration sensor needs to face the test sample, so that the sensor assembly 100 is pressed on the test sample. Through the structure in the present embodiment, in this state, the axis of the rubber piece 200 can be kept perpendicular to the test sample, so that the elastic force of the rubber piece 200 can be applied on the test sample vertically through the sensor assembly 100, the working stability of the sensor assembly 100 in a long time working state and under the action of vibration can be better maintained, and then the test sample can be better detected.

[0026] In some embodiments, a first connecting seat 210 is arranged on the first end of the rubber piece 200, and the sensor assembly 100 is fixedly connected on the first connecting seat 210, so as to realize the fixed connection between the sensor assembly 100 and the rubber piece 200.

[0027] It should be noted that in the production and manufacturing, the first connecting seat 210 and the rubber piece 200 are integrally formed by mold pouring, so that the connection between the first connecting seat 210 and the rubber piece 200 has better stability, and the first connecting seat 210 is prevented from being separated from the rubber piece 200 during vibration.

[0028] In some embodiments, the sensor assembly 100 is fixedly installed on the first connecting seat 210 in a threaded connection manner through a stud 400.

[0029] Further, the first threaded hole 110 is arranged on the sensor assembly 100, and the first end of the stud 400 can be screwed into the first threaded hole 110, thereby realizing the fixed connection between the sensor assembly 100 and the stud 400; further, the second threaded hole 211 is arranged on the first connecting seat 210, and the second end of the stud 400 can be screwed into the second threaded hole 211, thereby realizing the fixed connection between the rubber piece 200 and the stud 400 through the first connecting seat 210.

[0030] It should be noted that since the sensor assembly 100 and the first connecting seat 210 are fixedly connected with the stud 400 in a threaded connection manner, the threaded directions of the first threaded hole 110 and the second threaded hole 211 can be opposite, thereby facilitating the fixed connection between the first connecting seat 210 and the sensor assembly 100 through the stud 400, and ensuring the connection stability between the first connecting seat 210, the stud 400 and the sensor assembly 100, so that the connection between the stud 400 and the first connecting seat 210 and the sensor assembly 100 is not easy to loosen.

[0031] In some embodiments, the second connecting seat 220 is arranged on the second end of the rubber piece 200, and the connecting piece 300 is fixedly connected to the second connecting seat 220, thereby realizing the fixed connection between the connecting seat and the rubber piece 200.

[0032] It should be noted that in the production and manufacturing, the second connecting seat 220 and the rubber piece 200 are integrally formed by mold pouring, so that the connection between the second connecting seat 220 and the rubber piece 200 has better stability, and the second connecting seat 220 is prevented from being separated from the rubber piece 200 during vibration.

[0033] In some embodiments, the connecting piece 300 is fixedly installed on the second connecting seat 220 in a threaded connection manner.

[0034] Further, the third threaded hole 221 is arranged on the second connecting seat 220, and the screw rod 310 is arranged on the end of the connecting piece 300 close to the rubber piece 200, the screw rod 310 can be screwed into the third threaded hole 221 in a threaded connection mode, and then the fixed connection between the connecting piece 300 and the second connecting seat 220 is realized.

[0035] In some embodiments, the outer thread 320 is arranged on the circumferential outer wall of the connecting piece 300, and the fixed connection between the connecting piece 300 and the detection tool can be realized through the outer thread 320.

[0036] In some embodiments, at least one adjusting hole 230 is arranged on the rubber piece 200.

[0037] It can be understood that the adjusting hole 230 has a hole diameter size and a depth size when actually opened, and the opening of the adjusting hole 230 on the rubber piece 200 can achieve the effect of adjusting the hardness and rigidity of the rubber piece 200, so that the shock isolation effect of the rubber piece 200 is better.

[0038] Further, the adjusting hole 230 is arranged on the first end of the rubber piece 200 in a semispherical shape, and the adjusting hole 230 extends in a long strip shape along the axial direction of the rubber piece 200. According to the needs of the hardness and rigidity of the rubber piece 200, the number of adjusting holes 230 opened on the rubber piece 200 can be adaptively adjusted, in the embodiment, the adjusting hole 230 is provided with six, and the six adjusting holes 230 are uniformly arranged along the circumferential direction of the rubber piece 200.

[0039] In some embodiments, the vibration sensor in the embodiment can not only be applied to the offline detection of electric drive, gearbox, reduction box, drive motor, electronic pump, mechanical pump, but also be applied to the offline detection of other components, such as joint module of humanoid robot, air compressor for fuel cell and engine balance shaft box, etc., which is not particularly limited.

[0040] In summary, the above only describes the preferred embodiments of the present application, and any changes and modifications made within the scope of the application should be included in the scope of the application.

Claims

1. A product online detection shock sensor structure, characterized in that: The sensor assembly, the rubber piece and the connecting piece are arranged at two ends of the rubber piece respectively; the sensor assembly and the rubber piece can be installed on a detection tool through the connecting piece; When detecting a test sample, the detection tool provides a compression force for the sensor assembly by compressing the rubber piece, so that the sensor assembly is tightly attached to the test sample.

2. The product online detection shock sensor structure according to claim 1, wherein: A first connecting seat is arranged on the first end of the rubber piece, and the sensor assembly is fixedly connected to the first connecting seat.

3. The product online detection shock sensor structure according to claim 2, characterized in that: The sensor assembly is fixedly installed on the first connecting seat in a threaded connection mode through a stud.

4. The product online detection shock sensor structure according to claim 1, wherein: A second connecting seat is arranged on the second end of the rubber piece, and the connecting piece is fixedly connected to the second connecting seat.

5. The product online detection shock sensor structure according to claim 4, characterized in that: The connecting piece is fixedly installed on the second connecting seat in a threaded connection mode.

6. The product online detection shock sensor structure according to claim 1, wherein: At least one adjusting hole is arranged on the rubber piece.

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