CN213985359U - Structure of vibration sensing equipment - Google Patents
Structure of vibration sensing equipment Download PDFInfo
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- CN213985359U CN213985359U CN202120052054.8U CN202120052054U CN213985359U CN 213985359 U CN213985359 U CN 213985359U CN 202120052054 U CN202120052054 U CN 202120052054U CN 213985359 U CN213985359 U CN 213985359U
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- vibration sensing
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Abstract
The invention provides a structure of vibration sensing equipment, which comprises a cylinder, a piezoelectric core, a core mounting seat, a lead connector body, a lead and a circuit board, wherein the piezoelectric core is arranged on the cylinder; the core body mounting seat is an epoxy resin rod, the wall thickness of the core body mounting seat is greater than or equal to 2.5mm, the core body mounting seat is arranged in the barrel, epoxy resin is filled between the core body mounting seat and the barrel, and a closed accommodating space is formed; the piezoelectric core body is arranged in the core body mounting seat, the circuit board is arranged on the upper portion of the core body mounting seat and is connected with the lead connector body through a lead, and the tail portion of the lead connector body is provided with an indicator light.
Description
Technical Field
The invention relates to the technical field of monitoring devices, in particular to a structure of vibration sensing equipment and an anti-interference method of the sensing equipment.
Background
The vibration sensor is a test instrument which converts pressure generated by physical phenomena such as acceleration, vibration, impact and the like into an electric signal which is convenient to measure. The piezoelectric acceleration sensor is a device which takes a piezoelectric material as a conversion element and outputs electric charge or voltage in direct proportion to acceleration.
On an industrial site, an on-line vibration sensor is often equipped for key mechanical equipment, so that the running state of the equipment is monitored on line, predictive maintenance is carried out, and the occurrence of serious potential safety hazards or production stop accidents of the equipment is prevented.
In the prior art, most sensors adopt wireless sensors to monitor the running state of equipment, but the wireless sensors have the following technical problems:
first, the transmission distance is limited: usually limited by distance, the speed of data transmission depends on the position of the receiving device relative to the sensor;
secondly, susceptibility to interference and loss: the reliability of the network under strong electromagnetic devices is poor, and the wireless sensor devices may also be interfered by other devices, such as a radio and a mobile phone, and the resulting interruption may prevent information from reaching the user at a critical moment;
thirdly, the data transmission efficiency is low: the data transfer speed is not as high as wired, and the speed of data transfer depends on the position of the receiving device relative to the sensor.
Disclosure of Invention
The invention aims to provide a structure of vibration sensing equipment, which aims to solve the problems of limited transmission distance, high possibility of interference, low loss and low data transmission efficiency of the conventional wireless sensor in the background technology for monitoring the running state of the equipment.
In order to achieve the purpose, the invention provides the following technical scheme: a structure of vibration sensing equipment comprises a cylinder, a piezoelectric core, a core mounting seat, a lead connector body, a lead and a circuit board; the core body mounting seat is an epoxy resin rod, the wall thickness of the core body mounting seat is greater than or equal to 2.5mm, the core body mounting seat is arranged in the barrel, epoxy resin is filled between the core body mounting seat and the barrel, and a closed accommodating space is formed; the piezoelectric core body is arranged in the core body mounting seat, the circuit board is arranged on the upper portion of the core body mounting seat and is connected with the lead connector body through a lead, and the tail portion of the lead connector body is provided with an indicator light.
As a further improvement of the technical scheme, the cylinder body is of an integrated structure and comprises a cylindrical hollow structure and a regular hexagonal prism structure; the upper end of the cylindrical hollow structure is an open end, the lower end of the cylindrical hollow structure is connected with the regular hexagonal prism structure, and the diameter of the cylindrical hollow structure is
The core body mounting seat has a rough surface, so that friction force can be increased, and the core body mounting seat is convenient to glue and seal and fix.
As a further improvement of the technical scheme, a boss is arranged in the regular hexagonal prism structure, a groove matched with the boss is formed in the bottom of the core body mounting seat, and a screw hole is formed in the bottom of the regular hexagonal prism structure.
As a further improvement of the technical scheme, the upper part of the core body mounting seat is provided with three uniformly distributed circuit board mounting holes, and the circuit board is mounted on the circuit board mounting holes through screws so as to be convenient for mounting the circuit board.
As a further improvement of the technical scheme, a plurality of accommodating chambers are formed in the outer portion of the core body mounting seat, the accommodating chambers are annular open holes or annular grooves, chamfers are arranged at the positions of the annular open holes or the annular grooves, the annular open holes or the annular grooves are used for increasing the capacity and the adhesion degree of epoxy resin, and the capacity of resisting interference and high voltage of the sensor is enhanced.
As a further improvement of the technical scheme, the bottom of the core body mounting seat is provided with a plurality of sealing grooves, a through hole is formed in the middle of the core body mounting seat, the diameter of the through hole is 4mm, and the sealing grooves are used for encapsulating epoxy resin glue to increase the bonding area.
As a further improvement of the technical scheme, two side walls of the core body mounting seat are provided with circular grooves which are in clearance fit with the inner wall of the cylinder body, and are encapsulated by epoxy resin glue; isolation from the outer metal shell is achieved.
As a further improvement of the technical scheme, the joint of the lead connector body and the barrel is subjected to laser welding, and the inner surface of the lead connector body is provided with an annular boss which is convenient for being matched and positioned with the barrel.
Compared with the prior art, the invention has the beneficial effects that:
the sensor can monitor the running state of the equipment on line, perform predictive maintenance and prevent major potential safety hazards or production stop accidents of the equipment.
The core body mounting seat physically isolates the piezoelectric core body, the circuit board and the cylinder body, so that signals output by the sensor are insulated from the cylinder body, mounting accessories are saved, the structure is simplified, the cost is reduced, and meanwhile, the anti-interference capability of a product is improved.
Drawings
FIG. 1 is a schematic three-dimensional structure of a sensor according to the present invention;
FIG. 2 is a schematic front view of a sensor according to the present invention;
FIG. 3 is a schematic cross-sectional view of a sensor according to the present invention;
FIG. 4 is a schematic view of the cartridge structure of the sensor of the present invention;
FIG. 5 is a schematic three-dimensional structure of a core mounting base of the sensor of the present invention;
FIG. 6 is a schematic cross-sectional view of a core mount of the sensor of the present invention;
FIG. 7 is a schematic view of the bottom structure of the core mount of the sensor of the present invention;
FIG. 8 is a schematic view of a lead tab body of the sensor of the present invention;
fig. 9 is a schematic cross-sectional structure view of a lead tab body of the sensor of the present invention.
Reference numerals: 1 is a cylinder, 2 is a piezoelectric core, 3 is a core mounting base, 4 is a lead terminal body, 5 is a wire, 6 is a circuit board, 11 is a cylindrical hollow structure, 12 is a regular hexagonal prism structure, 31 is a circuit board mounting hole, 32 is an accommodation chamber, 33 is a seal groove, 34 is a circular groove, 35 is a groove, 121 is a boss, and 122 is a screw hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 9 together, an aspect of the present invention provides a structure of a vibration sensing apparatus, including a barrel 1, a piezoelectric core 2, a core mounting base 3, a lead connector body 4, a lead 5 and a circuit board 6; the core body mounting seat 3 is arranged in the barrel body 1, epoxy resin is filled between the core body mounting seat and the barrel body 1, and a closed accommodating space is formed; the piezoelectric core body 2 is arranged in the core body mounting seat 3, the circuit board 6 is arranged at the upper part of the core body mounting seat 3 and is connected with the lead connector body 4 through the lead 5, the sensor can monitor the running state of equipment on line, perform predictive maintenance and prevent major potential safety hazards or production stop accidents of the equipment; the core body mounting seat 3 is an epoxy resin rod (polysulfone rod), the piezoelectric core body 2, the circuit board 6 and the cylinder body 1 are physically isolated by the core body mounting seat 3, signals output by the sensor are insulated from the cylinder body, mounting accessories are saved, the structure is simplified, the cost is reduced, and meanwhile the anti-interference capacity of the product is improved.
The upper portion of the core body mounting seat 3 is provided with three uniformly distributed circuit board mounting holes 31, and the circuit board 6 is mounted on the circuit board mounting holes 31 through screws so as to facilitate mounting of the circuit board 6.
A plurality of accommodating chambers 32 are formed outside the core body mounting seat 3, the accommodating chambers 32 are annular openings or annular grooves, chamfers are arranged at the annular openings or the annular grooves, the annular openings or the annular grooves are used for increasing the capacity and the adhesion degree of epoxy resin and enhancing the anti-interference and high-voltage-resistant capabilities of the sensor, and the thinnest wall thickness of the core body mounting seat is greater than or equal to 2.5 mm; the bottom of the core body mounting seat 3 is provided with a plurality of sealing grooves 33, a through hole is formed in the middle of the core body mounting seat, the diameter of the through hole is 4mm, and the sealing grooves 33 are used for encapsulating epoxy resin glue to increase the bonding area; two side walls of the core body mounting seat 3 are provided with circular grooves and are in clearance fit with the inner wall of the cylinder body 1, and the core body mounting seat is encapsulated by epoxy resin glue; wherein, the circular grooves 34 on the two side walls are provided with a glue sealing and filling opening on one side and an exhaust hole on the other side; when the epoxy resin glue is filled and sealed, a special tool is adopted to clamp the circular groove, the core body mounting seat 3 is rotated to enable the epoxy resin glue to be attached to the inner wall of the cylinder body 1 in the circumferential direction, wherein the filled cylinder body is placed in an electric oven at 73 +/-2 ℃, the drying treatment is not less than 60 minutes, and the isolation with an external metal shell is realized.
The cylinder body 1 is of an integrated structure and comprises a cylindrical hollow structure 11 and a regular hexagonal prism structure 12; the upper end of the cylindrical hollow structure 11 is an open end, the lower end of the cylindrical hollow structure 11 is connected with the regular hexagonal prism structure 12, wherein the diameter of the cylindrical hollow structure 11 is
The core body mounting seat has a rough surface, so that friction force can be increased, and the core body mounting seat 3 is convenient to glue and fix; regular hexagon prismatic structure 12 is inside to be provided with boss 121, the bottom of core mount pad 3 be provided with boss 121 complex recess 35, regular hexagon prismatic structure 12's bottom is provided with screw hole 122, and when using, barrel 1 passes through bolt fixed connection through screw hole 122 and the equipment that awaits measuring.
The junction of the lead connector body 4 and the barrel 1 adopts laser welding, the internal surface of the lead connector body 4 is provided with an annular boss (spigot), is convenient for locate with the barrel 1 cooperation, the afterbody of the lead connector body 4 has an indicator lamp 41, and this indicator lamp 41 is a three-color LED indicator lamp, and electrified green often brightens, data transmission is yellow scintillation, fault status is red light often brightens, and then conveniently observes the state of sensor.
The core body mounting seat is arranged in the cylinder body, epoxy resin is filled between the core body mounting seat and the cylinder body, and a closed accommodating space is formed; the piezoelectric core body, the circuit board and the cylinder body are physically isolated, the thinnest wall thickness is larger than or equal to 2.5mm, signals output by the sensor are insulated from the cylinder body, installation accessories are saved, the structure is simplified, the cost is reduced, and meanwhile, the anti-interference capacity of products is improved.
The upper portion of the core body mounting seat 3 is provided with three uniformly distributed circuit board mounting holes, and the circuit board 6 is mounted on the circuit board mounting holes through screws so as to facilitate mounting of the circuit board 6.
The outer part of the core body mounting seat 3 is provided with a plurality of annular holes or annular grooves, wherein chamfers are arranged at the annular holes or annular grooves, the annular holes or annular grooves are used for increasing the capacity and the adhesion degree of epoxy resin and enhancing the anti-interference and high-voltage-resistant capability of the sensor, and the thinnest wall thickness of the core body mounting seat is more than or equal to 2.5 mm; the bottom of the core body mounting seat 3 is provided with a plurality of sealing grooves, a through hole is formed in the middle of the core body mounting seat, the diameter of the through hole is 4mm, and the plurality of sealing grooves are used for encapsulating epoxy resin glue, so that the combination area is increased; two side walls of the core body mounting seat 3 are provided with circular grooves and are in clearance fit with the inner wall of the cylinder body 1, and the core body mounting seat is encapsulated by epoxy resin glue; the circular grooves on the two side walls are provided with glue sealing and filling openings on one side and vent holes on the other side, a special tool is adopted to hold the circular grooves during epoxy resin glue filling, the core body mounting seat 3 is rotated to enable the epoxy resin glue to be attached to the inner wall of the cylinder body in the circumferential direction, the cylinder body after being filled is placed in an electric oven at 73 +/-2 ℃, drying treatment is not less than 60 minutes, and isolation with an external metal shell is achieved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The structure of the vibration sensing equipment is characterized by comprising a cylinder (1), a piezoelectric core (2), a core mounting seat (3), a lead connector body (4), a lead (5) and a circuit board (6); the core body mounting seat (3) is an epoxy resin rod, the wall thickness of the core body mounting seat is greater than or equal to 2.5mm, the core body mounting seat (3) is arranged in the barrel body (1), epoxy resin is filled between the core body mounting seat and the barrel body (1), and a closed accommodating space is formed; the piezoelectric core body (2) is arranged in the core body mounting seat (3), the circuit board (6) is arranged on the upper portion of the core body mounting seat (3) and is connected with the lead connector body (4) through a lead (5), and the tail portion of the lead connector body (4) is provided with an indicator lamp (41).
2. A structure of a vibration sensing apparatus according to claim 1, characterized in that the cylinder (1) is a one-piece structure comprising a cylindrical hollow structure (11) and a regular hexagonal prism structure (12).
3. A structure of a vibration sensing apparatus according to claim 2, characterized in that the upper end of the cylindrical hollow structure (11) is an open end, and the lower end of the cylindrical hollow structure (11) is connected with the regular hexagonal prism structure (12).
4. A structure of a vibration sensing apparatus according to claim 3, wherein the regular hexagonal prism structure (12) is provided with a boss (121) inside thereof, and the bottom of the core body mounting seat (3) is provided with a groove (35) which is matched with the boss (121).
5. A structure of a vibration sensing apparatus according to claim 1, wherein the core mounting seat (3) is provided at an upper portion thereof with three evenly distributed circuit board mounting holes (31), and the circuit board (6) is mounted on the circuit board mounting holes (31) by screws.
6. A structure of vibration sensing apparatus according to claim 1, wherein the core mounting seat (3) is externally provided with a plurality of receiving chambers (32).
7. A structure of vibration sensing device according to claim 6, characterized in that the receiving chamber (32) is an annular opening or an annular groove with a chamfer.
8. The structure of a vibration sensing apparatus according to claim 1, wherein the bottom of the core mounting seat (3) is provided with a plurality of sealing grooves (33) with a through hole in the middle, and the diameter of the through hole is 4 mm.
9. The structure of a vibration sensing device according to claim 1, characterized in that the two side walls of the core body mounting seat (3) are provided with circular grooves and are in clearance fit with the inner wall of the cylinder body (1), and are encapsulated by epoxy resin glue.
10. A structure of a vibration sensing apparatus according to claim 1, wherein the joint of the lead tab body (4) and the barrel (1) is laser welded, and the inner surface of the lead tab body (4) is provided with an annular boss (121).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120052054.8U CN213985359U (en) | 2021-01-08 | 2021-01-08 | Structure of vibration sensing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120052054.8U CN213985359U (en) | 2021-01-08 | 2021-01-08 | Structure of vibration sensing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213985359U true CN213985359U (en) | 2021-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120052054.8U Active CN213985359U (en) | 2021-01-08 | 2021-01-08 | Structure of vibration sensing equipment |
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| Country | Link |
|---|---|
| CN (1) | CN213985359U (en) |
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2021
- 2021-01-08 CN CN202120052054.8U patent/CN213985359U/en active Active
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