A mechanically fixed and detachable dual vibration sensor mounting box and mounting method

Abstract

The present invention discloses a mechanically fixed detachable dual vibration sensor mounting box and a mounting method, which includes a mounting base body, a magnetic fixing seat, a fixed side plate and a sealing cover. The magnetic fixing seat is fixedly connected to one end side of the mounting base body through a support bolt. On the side of the mounting base body opposite to the magnetic fixing seat, a first vibration sensor for horizontal direction detection is installed. On one side of the top of the mounting base body, a second vibration sensor for vertical direction detection is installed. The fixed side plate is fixed to one end at the rear of the mounting base body, and a sealing cover for sealing the first vibration sensor and the second vibration sensor on the mounting base body is fixed on the fixed side plate. When the sensor mounting box of the present invention is installed, it is not restricted by the space of the operating equipment, and multiple single-axis sensors can be conveniently installed at the horizontal radial and vertical radial positions of the equipment. Moreover, the installation operation is simple, and the sensors can be disassembled as needed.

Description

Technical Field

[0001] The present invention relates to the technical field of building reinforcement construction, and particularly relates to a mechanically fixed and detachable dual vibration sensor installation box and an installation method thereof. Background Art

[0002] As an important component for real-time online detection of device vibration, most of the acceleration sensors for current device vibration detection adopt piezoresistive, piezoelectric and capacitive working principles. The generated acceleration is proportional to the changes in resistance, voltage and capacitance, and is collected through corresponding amplification and filtering circuits; the piezoelectric acceleration vibration sensor utilizes the piezoelectric effect of piezoelectric ceramics. When a force is applied to the piezoelectric ceramics to deform them, polarization phenomena occur inside, and at the same time, charges are generated on a certain surface of it. When the external force is removed, it returns to the non-charged state again. When the direction of the acting force changes, the polarity of the charges also changes. On the bearing seats of some devices such as motors, speed reducers, and fans, when it is necessary to simultaneously monitor the vibration values of the device in the horizontal radial and vertical radial directions, it is often restricted by the installation of the device, such as limited space, large interference and other situations. In the case of only one installation position, it is difficult to install single-axis sensors at the horizontal radial and vertical radial positions of the device to achieve vibration detection, and it is difficult for single-axis sensors to achieve two-axis vibration monitoring, which affects the accuracy of vibration analysis. Therefore, it is of great practical significance to effectively ensure the detection accuracy and sensitivity of the horizontal radial and vertical radial vibration values of the device and provide strong guarantee for real-time online detection by proposing an installation method for dual vibration sensors to solve the above technical defects. Summary of the Invention

[0003] The purpose of the present invention is to provide a mechanically fixed and detachable dual vibration sensor installation box and an installation method thereof. The sensor installation box of the present invention is not restricted by the space of the operating device during installation, so that multiple single-axis sensors can be conveniently installed at the horizontal radial and vertical radial positions of the device, and the installation operation is simple, and the sensors can be disassembled as needed to achieve the function of single-side point dual monitoring, improving the accuracy of vibration analysis. To achieve the above purpose, the present invention adopts the following technical effects:

[0004] According to one aspect of the present invention, a mechanically fixed and detachable dual vibration measuring sensor mounting box is provided. The mounting box includes a mounting base body, a magnetic fixing seat, a fixed side plate and a sealing cover. The magnetic fixing seat is fixedly connected to one end side of the mounting base body through a support bolt. On the side of the mounting base body opposite to the magnetic fixing seat, a first vibration measuring sensor for horizontal direction detection is installed. On one side of the top of the mounting base body, a second vibration measuring sensor for vertical direction detection is installed. The fixed side plate is fixed at one end of the rear side of the mounting base body, and a sealing cover for sealing the first vibration measuring sensor and the second vibration measuring sensor on the mounting base body is fixed on the fixed side plate.

[0005] In a further preferred embodiment of the above solution, a sliding card slot seat is provided at the top end of the fixed side plate. The sliding card slot seat is slidably buckled in the guide groove at the top end of the fixed side plate. One side of the sealing cover is clamped in the sliding card slot seat, and the other edges of the sealing cover are fixedly connected to the mounting base body through countersunk fastening bolts.

[0006] In a further preferred embodiment of the above solution, a sealing gasket is provided around the edge of the sealing cover and along the inner edge of the sealing cover. The thickness of the sealing gasket is 0.2 mm - 0.5 mm.

[0007] In a further preferred embodiment of the above solution, a first mounting groove in the horizontal direction is provided on the side of the mounting base body opposite to the magnetic fixing seat, a second mounting groove in the vertical direction is provided on the top of the mounting base body, and bolt holes are provided on the bottom walls of the first mounting groove and the second mounting groove.

[0008] In a further preferred embodiment of the above solution, a mesh shielding cover is respectively provided around the first vibration measuring sensor and the second vibration measuring sensor. The mesh shielding cover is buckled on the side wall of the mounting base body.

[0009] In a further preferred embodiment of the above solution, annular elastic support gaskets are respectively provided in the first mounting groove and the second mounting groove. The thickness of the annular elastic support gasket is 0.5 mm - 1 mm.

[0010] In a further preferred embodiment of the above solution, fixing holes are provided through the four corners of the mounting base body.

[0011] In a further preferred embodiment of the above solution, an outer annular recessed groove is provided between the bottom edge of the mounting base body and the fixing holes. An inner annular recessed groove is provided in the area surrounded by the fixing holes at the four corners of the mounting base body. Annular elastic rubber rings protruding outward are respectively provided in the outer-shaped recessed groove and the inner annular recessed groove, so as to form an annular buffer cavity between the annular elastic rubber rings in the outer-shaped recessed groove and the inner annular recessed groove.

[0012] According to another aspect of the present invention, the present invention provides an installation method for a mechanically fixed and detachable dual vibration measuring sensor installation box, and the installation method includes the following steps:

[0013] Step 1: Use 206L stainless steel and through machining technology, produce an installation base body for fixing the sensor, and machine a sliding card slot, a first installation slot, a second installation slot, fixing holes, an outer annular recess, an inner annular recess, and magnetic bolts for installing support bolts at the position where the installation base body 1 is located;

[0014] Step 2: Apply anti-backlash glue in the bolt holes and respectively set annular elastic support gaskets in the first installation slot and the second installation slot. Then, respectively assemble the first vibration measuring sensor and the second vibration measuring sensor at the positions of the first installation slot and the second installation slot of the installation base body 1 through connectors, and tighten the fixing bolts in the bolt holes to fasten the first vibration measuring sensor and the second vibration measuring sensor to the installation base body. Then, use a mesh shielding cover to shield the first vibration measuring sensor and the second vibration measuring sensor respectively;

[0015] Step 3: Assemble the fixed side plate and the magnetic fixing seat on the installation base body in sequence. Then, apply anti-backlash glue in the magnetic bolt holes, and fix the magnetic fixing seat to the installation base body through the support bolts;

[0016] Step 4: Respectively set annular elastic rubber rings in the outer shape recess and the inner annular recess at the bottom of the installation base body. Dip a glue stick in glue promoter and apply it to the bottom surface of the magnetic fixing seat and the surface of the annular elastic rubber ring. Then, apply structural adhesive TA459 to the bottom surface of the magnetic fixing seat and the surface of the annular elastic rubber ring. Within 1 - 5 minutes after the application is completed, press the magnetic fixing seat and the annular elastic rubber ring tightly against the measuring point surface of the device to be measured. Then, use bolts to pass through the fixing holes to tightly fix the installation base body to the measuring point of the device to be measured;

[0017] Step 5: Sleeve the sliding card slot seat on one side of the fixed side plate, and then insert the sliding card slot seat into the guide rail slot at the top of the fixed side plate, so that the sliding card slot seat is buckled in the guide rail slot at the top of the fixed side plate. Wrap a sealing gasket around the inner edge and the covering of the sealing cover on the fixed side plate. Then, buckle the sealing cover on the fixed side plate. Lead the signal wires out of the sealing cover from the first vibration measuring sensor and the second vibration measuring sensor. Then, use countersunk head fastening bolts to fasten the sealing cover to the fixed side plate and the installation base body, and lock the signal wires with nuts to form an installation box and complete the installation operation of the installation box.

[0018] In summary, the present invention adopts the above technical solutions and has the following technical effects: When installing the entire box, there is no space limitation for the operating equipment. Thus, multiple single-axis sensors can be conveniently installed at positions in the horizontal and vertical radial directions of the equipment. Moreover, the installation operation is simple, the sensors can be disassembled as needed, reducing the number of measurement points and also avoiding the space occupied by multiple detection positions and cable laying. The function of double monitoring with a single measurement point is realized, improving the accuracy of vibration analysis, facilitating data acquisition, being easy to maintain, and having low costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the front view structural schematic diagram of a mechanically fixed and detachable double vibration measurement sensor installation box of the present invention;

[0020] Figure 2 is the top view structural schematic diagram of a mechanically fixed and detachable double vibration measurement sensor installation box of the present invention;

[0021] Figure 3 is the right view structural schematic diagram of a mechanically fixed and detachable double vibration measurement sensor installation box of the present invention;

[0022] Figure 4 is the internal structural schematic diagram of the installation base body of the present invention;

[0023] Figure 5 is the bottom surface structural schematic diagram of the installation base body of the present invention;

[0024] In the drawings, installation base body 1, magnetic fixing seat 2, fixed side plate 3, sealing cover 4, first vibration measurement sensor 5, second vibration measurement sensor 6, support bolt 20, sliding card slot seat 30, countersunk head fastening bolt 31, sealing gasket 32, first installation groove 101, second installation groove 102, bolt hole 103, mesh shielding cover 104, annular elastic support gasket 105, fixing hole 106, outer annular recessed groove 107, inner annular recessed groove 108, annular elastic rubber ring 109, annular buffer cavity 110. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the following preferred embodiments are given with reference to the accompanying drawings for further detailed description of the present invention. However, it should be noted that many details listed in the specification are only for enabling the reader to have a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.

[0026] Combined with Figure 1 、 Figure 2 and Figure 3, a mechanically fixed and detachable dual vibration sensor mounting box according to the present invention, the mounting box includes a mounting base body 1, a magnetic fixing seat 2, a fixed side plate 3 and a sealing cover 4. One end side of the mounting base body 1 is fixedly connected to the magnetic fixing seat 2 through a support bolt 20. On the side of the mounting base body 1 opposite to the magnetic fixing seat 2, a first vibration sensor 5 for horizontal direction detection is installed. A second vibration sensor 6 for vertical direction detection is installed on one side of the top of the mounting base body 1. Two sensors are installed on the mounting base body 1, and the relative angle of their axes is 90°. Thus, a single-axis sensor is combined into a biaxial sensor. At the same time, the sensors are fixed with bolts. When the service life of the sensor reaches or a fault occurs and needs to be disassembled, one of the sensors can be disassembled and replaced separately; the fixed side plate 3 is fixed at one end of the rear side of the mounting base body 1. A sealing cover 4 for sealing the first vibration sensor 5 and the second vibration sensor 6 on the mounting base body 1 is fixed on the fixed side plate 3. Signal lines are led out in front of the first vibration sensor 5 and the second vibration sensor 6 and pass through the outside of the sealing cover 4; according to the principle of vibration propagation, when a mechanical wave propagates from one medium to another, its frequency remains unchanged. The original sensor mounting base (connector) is connected and fixed to the mounting base body 1 without changing the vibration propagation medium and its frequency remains unchanged. Therefore, the monitoring performance of the sensor can still be effectively maintained. A sliding groove seat 30 is provided at the top end of the fixed side plate 3. The sliding groove seat 30 is slidably buckled in the guide groove at the top end of the fixed side plate 3. One side of the sealing cover 4 is clamped in the sliding groove seat 30, and the other edges of the sealing cover 4 are fixedly connected to the mounting base body 1 through countersunk head fastening bolts 31. One side of the sealing cover 4 is arranged on the fixed side plate 3 through the sliding groove seat 30. When it is convenient for installation and disassembly, it can ensure that the sealing cover 4 does not move out of position during the installation process, and it will save time and effort. Moreover, the installation operation is simple and can be disassembled as needed, reducing the measurement points and avoiding the space occupied by installing multiple detection positions and cable laying, realizing the function of double monitoring at a single measurement point.

[0027] In the present invention, Figure 1 and Figure 3 As shown, a sealing gasket 32 is provided along the edge of the sealing cover 4 and the inner edge of the sealing cover 4. The thickness of the sealing gasket 32 is 0.2 mm - 0.5 mm, so as to prevent the whole box from leaking during high-speed operation on the measured device and affecting the vibration detection of the sensor. A mesh shielding cover 105 is respectively arranged around the first vibration sensor 5 and around the second vibration sensor 6. The mesh shielding cover 105 is buckled on the side wall of the mounting base body 1 to reduce the influence of external vibration interference signals on the detection performance of the sensor.

[0028] In the present invention, as Figure 4As shown in the figure, a horizontal first mounting groove 101 is provided on the side of the mounting base body 1 on one side of the magnetic fixing base 2. A vertical second mounting groove 102 is provided on the top of the mounting base body 1. Bolt holes 103 are provided on the bottom walls of the first mounting groove 101 and the second mounting groove 102. Annular elastic support gaskets 105 are respectively provided in the first mounting groove 101 and the second mounting groove 102. The thickness of the annular elastic support gasket 105 is 0.5 mm - 1 mm. Fixing holes 106 are penetrated through the four corners of the mounting base body 1. Bolts are inserted into the fixing holes 106 to fix the mounting base body 1 on the measuring surface of the device under test.

[0029] In the present invention, Figure 1 and Figure 5 As shown in the figure, an outer annular recessed groove 107 is provided between the bottom edge of the mounting base body 1 and the fixing holes 106. An inner annular recessed groove 108 is provided in the area surrounded by the fixing holes 106 at the four corners of the mounting base body 1. Annular elastic rubber rings 109 protruding outward are respectively provided in the outer annular recessed groove 107 and the inner annular recessed groove 108, so as to form an annular buffer cavity 110 between the annular elastic rubber rings in the outer annular recessed groove 107 and the inner annular recessed groove 108. Among them, the height of the annular elastic rubber ring 109 protruding outward in its respective recessed groove is 0.5 mm - 2 mm. When the annular elastic rubber ring 109 is pressed against the measuring point surface of the device under test, a soft connection is formed, realizing a buffer and pressing fixed connection on the measured surface, playing a buffering role.

[0030] According to another aspect of the present invention, in combination with Figures 1 to 5 As shown in the figure, the present invention provides an installation method for a mechanically fixed and detachable dual vibration sensor installation box. The installation method includes the following steps:

[0031] Step 1: Use 206L stainless steel and through a machining process, make a mounting base body 1 for fixing the sensor, and machine the sliding card slots 30, the first mounting groove 101, the second mounting groove 102, the fixing holes 106, the outer annular recessed groove 107, the inner annular recessed groove 108 and the magnetic bolt holes 21 for installing the support bolts 20 at the position of the mounting base body 1.

[0032] Step 2: Apply anti-loosening glue inside the bolt hole 103, and respectively arrange annular elastic support gaskets 105 inside the first installation groove 101 and the second installation groove 102. Then, respectively assemble the first vibration sensor 5 and the second vibration sensor 6 onto the positions of the first installation groove 101 and the second installation groove 102 of the installation base body 1 through connectors, such that the bottom surfaces of the first vibration sensor 5 and the second vibration sensor 6 are respectively tightly pressed against the corresponding annular elastic support gaskets 105, and tighten the fixing bolts inside the bolt hole 103, thereby completing the fixation of the first vibration sensor 5 and the second vibration sensor 6 onto the installation base body 1. Then, use the mesh shielding cover 104 to shield the first vibration sensor 5 and the second vibration sensor 6 respectively, so as to prevent external interference signal noise from interfering with the sensor detection, and can also effectively protect the sensors from external dust pollution, affecting the detection effect;

[0033] Step 3: Assemble the fixed side plate 3 and the magnetic fixing seat 2 onto the installation base body 1 in sequence. Then, apply anti-loosening glue inside the magnetic bolt hole 21, and fix the magnetic fixing seat 2 onto the installation base body 1 through the support bolt 20, such that the support bolt 20 is tightened inside the magnetic bolt hole 21 and is not prone to loosening;

[0034] Step 4: Respectively arrange annular elastic rubber rings 109 inside the outer annular depression groove 107 and the inner annular depression groove 108 at the bottom of the installation base body 1. Dip a glue stick in glue promoter and apply it to the bottom surface of the magnetic fixing seat 2 and the surface of the annular elastic rubber ring 109. Then, apply structural adhesive TA459 to the bottom surface of the magnetic fixing seat 2 and the surface of the annular elastic rubber ring 109. Within 1 - 5 minutes after the application is completed, closely attach the magnetic fixing seat 2 to the measuring point surface of the device under test. At this time, the surfaces of the annular elastic rubber rings 109 inside the outer shape depression groove 107 and the inner annular depression groove 108 will closely adhere to the measuring point surface of the device under test. Then, use bolts to pass through the fixing holes 106 to tightly fix the installation base body 1 to the measuring point of the device under test. At this time, a sealed buffer space (annular buffer cavity 110) is formed between the two annular elastic rubber rings 109, enabling a flexible connection and contact between the installation base body 1 and the device under test. When the device under test vibrates, the sensor, along with the installation base body 1, forms buffering and vibration reduction in the sealed buffer space, reducing the wear of the installation base body 1, and thus can also detect in real time whether the installation base body 1 itself is affected by external vibration conditions, improving the accuracy of vibration detection.

[0035] Step 4: Sheath the sliding card slot seat 30 on one side of the fixed side plate 3, then insert the sliding card slot seat 30 into the guide rail groove at the top of the fixed side plate 3, so that the sliding card slot seat 30 is buckled in the guide rail groove at the top of the fixed side plate 3. Wrap a sealing gasket 32 around the inner edge and the covering of the sealing cover 4 on the fixed side plate 3, and then buckle the sealing cover 4 on the fixed side plate 3. Lead the signal wire out of the sealing cover 4 from the first vibration sensor 5 and the second vibration sensor 6, and then use the countersunk head fastening bolt 31 to fasten the sealing cover 4 to the fixed side plate 3 and the mounting base body 1, and lock the signal wire with a nut to form the installation box. When installing the whole box of the present invention, there is no space limitation of the operating equipment, so that multiple single-axis sensors can be conveniently installed at the horizontal radial and vertical radial positions of the equipment, realizing two-axis vibration monitoring, improving the accuracy of vibration analysis, and being convenient for data acquisition, maintenance and low cost.

[0036] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art in the technical field, several improvements and refinements can be made without departing from the principle of the present invention, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A mounting method for a mechanically fixed and detachable dual vibration sensor mounting box, characterized in that: The installation box includes an installation base body (1), a magnetic fixing base (2), a fixing side plate (3) and a sealing cover (4). One end side of the installation base body (1) is fixedly connected to the magnetic fixing base (2) through a support bolt (20). On the side of the installation base body (1) opposite to the magnetic fixing base (2), a first vibration sensor (5) for horizontal direction detection is installed. On one side of the top of the installation base body (1), a second vibration sensor (6) for vertical direction detection is installed. The fixing side plate (3) is fixed at one end of the rear side of the installation base body (1). A sliding card slot seat (30) is provided at the top end of the fixing side plate (3). A sealing cover (4) for sealing the first vibration sensor (5) and the second vibration sensor (6) on the installation base body (1) is fixed on the fixing side plate (3). A first installation groove (101) in the horizontal direction is provided on the side of the installation base body (1) opposite to the magnetic fixing base (2). A second installation groove (102) in the vertical direction is provided on the top of the installation base body (1). Bolt holes (103) are provided on the bottom walls of the first installation groove (101) and the second installation groove (102). Mesh shielding covers (104) are respectively provided around the first vibration sensor (5) and the second vibration sensor (6). The mesh shielding covers (104) are buckled on the side walls of the installation base body (1). Annular elastic support gaskets (105) are respectively provided in the first installation groove (101) and the second installation groove (102). Fixing holes (106) are provided through the four corners of the installation base body (1). An outer annular recessed groove (107) is provided along the bottom edge of the installation base body (1) and the fixing holes (106). An inner annular recessed groove (108) is provided in the area surrounded by the fixing holes (106) at the four corners of the installation base body (1). Outwardly protruding annular elastic rubber rings (109) are respectively provided in the outer annular recessed groove (107) and the inner annular recessed groove (108), so as to form an annular buffer cavity (110) between the annular elastic rubber rings (109) in the outer annular recessed groove (107) and the inner annular recessed groove (108). The installation method of its double vibration sensor installation box includes the following steps: Step 1: Use 206L stainless steel and through machining technology, make an installation base body (1) for fixing sensors, and machine the sliding card slot seat (30), the first installation groove (101), the second installation groove (102), the fixing holes (106), the outer annular recessed groove (107), the inner annular recessed groove (108) and the magnetic bolt holes (21) for installing the support bolts (20) at the position of the installation base body (1). Step 2: Apply anti-loosening glue in the bolt holes (103), and respectively set annular elastic support gaskets (105) in the first mounting groove (101) and the second mounting groove (102). Then, respectively assemble the first vibration sensor (5) and the second vibration sensor (6) at the positions of the first mounting groove (101) and the second mounting groove (102) of the mounting base body (1) through connectors, and tighten the fixing bolts in the bolt holes (103) to fasten the first vibration sensor (5) and the second vibration sensor (6) to the mounting base body (1). Then, use a mesh shielding cover (104) to shield the first vibration sensor (5) and the second vibration sensor (6) respectively; Step 3: Assemble the fixed side plate (3) and the magnetic fixing seat (2) on the mounting base body (1) in sequence. Then, apply anti-loosening glue in the magnetic bolt holes (21), and fix the magnetic fixing seat (2) to the mounting base body (1) through the support bolts (20); Step 4: Respectively set annular elastic rubber gaskets (109) in the outer annular recessed groove (107) and the inner annular recessed groove (108) at the bottom of the mounting base body (1). Dip a glue stick into the glue promoter and apply it to the bottom surface of the magnetic fixing seat (2) and the surface of the annular elastic rubber gasket (109). Then, apply structural adhesive TA459 to the bottom surface of the magnetic fixing seat (2) and the surface of the annular elastic rubber gasket (109). Within 1 - 5 minutes after the application is completed, press the magnetic fixing seat (2) and the annular elastic rubber gasket (109) tightly against the measuring point surface of the device under test. Then, use bolts to pass through the fixing holes (106) to tightly fix the mounting base body (1) to the measuring point of the device under test; Step 5: Sleeve the sliding card slot seat (30) on one side of the fixed side plate (3), and then insert the sliding card slot seat (30) into the guide rail groove at the top of the fixed side plate (3) so that the sliding card slot seat (30) is buckled in the guide rail groove at the top of the fixed side plate (3). Set a sealing gasket (32) around the inner edge of the sealing cover (4) and the sealing cover (4) and wrap it around the fixed side plate (3). Then, buckle the sealing cover (4) on the fixed side plate (3). Lead the signal wires out of the sealing cover (4) from the first vibration sensor (5) and the second vibration sensor (6). Then, use countersunk head fastening bolts (31) to fasten the sealing cover (4) to the fixed side plate (3) and the mounting base body (1), and lock the signal wires with nuts to form an installation box and complete the installation operation of the installation box.

2. The installation method of a mechanically fixed and detachable dual vibration sensor installation box according to claim 1, characterized in that: The sliding card slot seat (30) is slidably buckled in the guide rail groove at the top of the fixed side plate (3), and one side of the sealing cover (4) is clamped in the sliding card slot seat (30), and the other edges of the sealing cover (4) are fixedly connected to the mounting base body (1) through countersunk head fastening bolts (31).

3. The installation method of a mechanically fixed and detachable dual vibration sensor installation box according to claim 1 or 2, characterized in that: A sealing gasket (32) is provided around the edge of the sealing cover (4) and along the inner edge of the sealing cover (4), and the thickness of the sealing gasket (32) is 0.2 mm - 0.5 mm.

4. The installation method of a mechanically fixed and detachable double vibration sensor installation box according to claim 1, characterized in that: The thickness of the annular elastic support gasket (105) is 0.5 mm - 1 mm.

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