CN109781239B - Steam turbine crankshaft vibration amplitude detection system - Google Patents
Steam turbine crankshaft vibration amplitude detection system Download PDFInfo
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- CN109781239B CN109781239B CN201910173573.7A CN201910173573A CN109781239B CN 109781239 B CN109781239 B CN 109781239B CN 201910173573 A CN201910173573 A CN 201910173573A CN 109781239 B CN109781239 B CN 109781239B
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Abstract
The invention discloses a shaft vibration amplitude detection system of a steam turbine, which comprises: a crankshaft; the main body is provided with a detection clamping groove, a detection mechanism, a vertical paper tape cavity, a rubber roller, a speed regulating motor, a contact switch, a paper tape winding drum and a transverse paper tape cavity; the detection clamping groove is fixedly formed in the center of the bottom of the main body, the detection clamping groove is used for placing a crankshaft to be detected, the main body is located at the top of the detection clamping groove, and detection mechanisms are respectively installed on one side of the main body and are used for detecting the vibration of the crankshaft.
Description
Technical Field
The invention relates to the technical field of steam turbines, in particular to a shaft vibration amplitude detection system of a steam turbine.
Background
The steam turbine is also called as a steam turbine engine, and is a rotary steam power device.A high-temperature high-pressure steam passes through a fixed nozzle to become an accelerated airflow and then is sprayed onto blades, so that a rotor provided with blade rows rotates, and simultaneously, the rotor does work outwards. Steam turbines are the main equipment of modern thermal power plants, and are also used in the metallurgical industry, the chemical industry and ship power plants; a steam turbine is an external combustion rotary machine that can convert steam heat energy into mechanical work. After steam from a boiler enters a steam turbine, the steam passes through a series of annularly arranged nozzles and movable blades in sequence, and heat energy of the steam is converted into mechanical energy for rotating a rotor of the steam turbine. The steam is converted in different ways in the steam turbine, thus forming the steam turbine with different working principles.
However, the conventional steam turbine has some disadvantages in the use process, such as:
when a traditional steam turbine is used, because a crankshaft in the traditional steam turbine is in a rotating state for a long time, a gap is easily formed between the crankshaft and a crankshaft fixing piece due to mutual abrasion, when a gap between the crankshaft and the fixing piece is large, crankshaft vibration easily occurs, and the vibration of the crankshaft accelerates the abrasion speed between the crankshaft and the fixing piece, so that the gap between the crankshaft and the fixing piece needs to be controlled in real time, and the phenomenon that the crankshaft generates large vibration to cause abrasion and damage of equipment is avoided Frequency, etc., and thus the detection effect is not good.
Disclosure of Invention
The present invention provides a system for detecting the shaft vibration amplitude of a shaft of a steam turbine, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a system for detecting shaft oscillation amplitude of a steam turbine shaft, comprising:
a crankshaft; and
the device comprises a main body, a detection mechanism, a detection device and a control device, wherein the main body is provided with a detection clamping groove, a detection mechanism, a vertical paper tape cavity, a rubber roller, a speed regulating motor, a contact switch, a paper tape winding drum and a transverse paper tape cavity; the detection clamping groove is fixedly arranged at the center of the bottom of the main body, the detection clamping groove is used for placing a crankshaft to be detected, detection mechanisms are respectively arranged at the top and one side of the main body, the detection mechanisms are used for detecting the vibration of the crankshaft, a vertical paper tape cavity is fixedly arranged at one side of the detection clamping groove, a transverse paper tape cavity is fixedly arranged at the top of the detection clamping groove, a group of rubber rollers are respectively and rotatably arranged in one end of the joint of the vertical paper tape cavity and the transverse paper tape cavity, the rubber rollers are used for driving the paper tape to move, a speed regulating motor is arranged at one end of each rubber roller in the transverse paper tape cavity, the speed regulating motor is used for driving the rubber rollers to rotate, a contact switch is fixedly arranged at the top and the side of the main body through screws, the contact switch is matched with the detection mechanisms, and a paper tape reel is rotatably arranged at one, the paper tape is wound outside the paper tape winding drum, and the paper tape is matched with the detection mechanism.
Further, the method also comprises the following steps: the controller, the controller passes through screw fixed mounting and is in the main part surface, the controller possesses siren, microprocessor, siren and microprocessor signal end electric connection, the siren is used for sending out the police dispatch newspaper, buncher and microprocessor signal end electric connection, microprocessor can control buncher operating condition, contact switch and microprocessor signal end electric connection, contact switch is used for the vibration condition of feedback detection mechanism, works as when contact switch is triggered by detection mechanism, microprocessor can receive alarm signal, sends out the police dispatch newspaper by microprocessor control siren again.
Further, the method also comprises the following steps: the storage battery is electrically connected with the electric energy input end of the microprocessor, and the storage battery is used for providing electric energy for the controller.
Further, the method also comprises the following steps: the pneumatic cylinder, the pneumatic cylinder is provided with two at least, the fixed welding of pneumatic cylinder power take off is in the main part lower surface, the pneumatic cylinder is used for providing support and elevating power for the main part, the pneumatic cylinder is kept away from the fixed welding of main part one end and is had the bottom plate, the bottom plate is used for increasing the area of contact of pneumatic cylinder and ground.
Further, the method also comprises the following steps: the detection mechanism is provided with a resistance spring, a sliding cavity, a detection rod, a stop block and a line drawing pen; the slide cavity is fixed to be seted up the main part is located and detects draw-in groove top and side, the measuring staff slides and pegs graft slide intracavity portion, the resistance spring cup joints outside the measuring staff, the resistance spring sets up at slide intracavity portion, the fixed welding in measuring staff middle part has the dog, the resistance spring is installed and is kept away from spindle one side at the dog, the measuring staff is located vertical paper tape cavity and horizontal paper tape cavity inside one end and is fixed the grafting respectively and has the setting-out pen, the setting-out pen is used for drawing a line on the paper tape.
Further, the method also comprises the following steps: the rubber roller is characterized in that a straight-tooth conical gear is fixedly welded at one end of a rotating shaft inside the rubber roller, and the rubber roller inside the transverse paper tape cavity drives the rubber roller inside the vertical paper tape cavity to rotate through the straight-tooth conical gear.
Further, the method also comprises the following steps: the main part is located upper surface and side and is threaded respectively and installs fixing bolt, the main part has the card through fixing bolt movable mounting, the card corresponds the setting with the paper tape reel, the card is used for fixing the paper tape reel.
To sum up, when the vibration of the crankshaft is detected, the crankshaft is placed at the center of the top of the detection clamping groove, when the height of the main body is lower, the main body can be lifted upwards through the hydraulic cylinder, when the height of the main body is higher, the height of the main body can be adjusted downwards through the hydraulic cylinder, so that the crankshaft is just right at the center of the detection clamping groove, the accuracy of a detection result is ensured, when the crankshaft is at the center of the top of the detection clamping groove, the detection rod can be pushed away from the detection clamping groove by the crankshaft, the resistance spring is in a compressed state at the moment, when the crankshaft vibrates towards the detection rod, the detection rod can be pushed away by the resistance spring crankshaft when the crankshaft vibrates in the opposite direction, the line drawing pen can draw lines on the paper tape along with the movement of the line drawing pen on the paper tape due to the movement of the detection rod, the paper tape is driven by the rubber roller to move at, the line drawing pen can draw a wavy line on the paper tape, the height of the wavy line is the amplitude of the crankshaft, and the ratio of the period number generated by the wavy line in unit time to the time is the vibration frequency of the crankshaft; the invention can realize the detection of the vibration of the crankshaft by clamping and placing the main body above the crankshaft without stopping the steam turbine equipment, thereby ensuring the running continuity of the power plant equipment.
Drawings
FIG. 1 is a schematic sectional view of a steam turbine shaft vibration amplitude detection system according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of a turbine shaft vibration amplitude detection system at A in FIG. 1;
FIG. 3 is an enlarged schematic view of the turbine shaft vibration amplitude detection system at B in FIG. 1;
FIG. 4 is an enlarged schematic view of the turbine shaft vibration amplitude detection system at C in FIG. 1;
FIG. 5 is a schematic top view of the turbine shaft vibration amplitude detection system in the embodiment of FIG. 1;
FIG. 6 is a schematic top sectional view of a turbine shaft vibration amplitude detection system in the embodiment of FIG. 1;
fig. 7 is a schematic hardware structure diagram of a shaft vibration amplitude detection system of the steam turbine in the embodiment of fig. 1.
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. 1-7, fig. 1 is a schematic sectional view of a product of an embodiment of a shaft vibration amplitude detection system of a steam turbine; FIG. 2 is an enlarged schematic view of a turbine shaft vibration amplitude detection system at A in FIG. 1; FIG. 3 is an enlarged schematic view of the turbine shaft vibration amplitude detection system at B in FIG. 1; FIG. 4 is an enlarged schematic view of the turbine shaft vibration amplitude detection system at C in FIG. 1; FIG. 5 is a schematic top view of the turbine shaft vibration amplitude detection system in the embodiment of FIG. 1; FIG. 6 is a schematic top sectional view of a turbine shaft vibration amplitude detection system in the embodiment of FIG. 1; FIG. 7 is a schematic diagram of a hardware structure of a shaft vibration amplitude detection system of the steam turbine in the embodiment of FIG. 1; the invention provides a technical scheme that:
a system for detecting shaft oscillation amplitude of a steam turbine shaft, comprising:
a crankshaft 300; and
the paper tape detection device comprises a main body 100, wherein the main body 100 is provided with a detection card slot 102, a detection mechanism 103, a vertical paper tape cavity 104, a rubber roller 105, a speed regulating motor 106, a contact switch 107, a paper tape 108, a paper tape winding cylinder 109 and a transverse paper tape cavity 110; the detection clamping groove 102 is fixedly arranged at the center of the bottom of the main body 100, the detection clamping groove 102 is used for placing a crankshaft 300 to be detected, the main body 100 is positioned at the top and one side of the detection clamping groove 102 and is respectively provided with a detection mechanism 103, the detection mechanism 103 is used for detecting the vibration of the crankshaft 300, one side of the main body 100 positioned at the detection clamping groove 102 is fixedly provided with a vertical paper tape cavity 104, the main body 100 is positioned at the top of the detection clamping groove 102 and is fixedly provided with a horizontal paper tape cavity 110, a group of rubber rollers 105 are respectively and rotatably arranged in one end of the joint of the vertical paper tape cavity 104 and the horizontal paper tape cavity 110, the rubber rollers 105 are used for driving a paper tape 108 to move, the speed regulating motor 106 is arranged at one end of the rubber rollers 105 in the horizontal paper tape cavity 110, the speed regulating motor 106 is used for driving, the contact switch 107 is matched with the detection mechanism 103, one end, far away from the rubber roller 105, of the vertical paper tape cavity 104 and the end, far away from the rubber roller 105, of the horizontal paper tape cavity 110 are rotatably provided with a paper tape reel 109, the paper tape 108 is wound outside the paper tape reel 109, and the paper tape 108 is matched with the detection mechanism 103.
The controller 200 is fixedly installed on the outer surface of the main body 100 through screws, the controller 200 is provided with an alarm 201 and a microprocessor 202, the alarm 201 is electrically connected with a signal end of the microprocessor 202, the alarm 201 is used for giving an alarm, the speed regulating motor 106 is electrically connected with the signal end of the microprocessor 202, the microprocessor 202 can control the working state of the speed regulating motor 106, the contact switch 107 is electrically connected with the signal end of the microprocessor 202, the contact switch 107 is used for feeding back the vibration condition of the detection mechanism 103, when the contact switch 107 is triggered by the detection mechanism 103, the microprocessor 202 can receive the alarm signal, and then the microprocessor 202 controls the alarm 201 to give the alarm; when the amplitude of the crankshaft 300 is large, at this time, because the detecting rod 1033 is pushed by the crankshaft 300, the top of the detecting rod 1033 touches the contact switch 107, and the contact switch 107 is detected by the microprocessor 202 after being switched on, so that the microprocessor 202 controls the alarm 201 to send out alarm information to remind a worker that the crankshaft 300 needs to be maintained, and the maintenance of the worker is facilitated.
Through the electric energy input end electric connection of the storage battery 101 and the microprocessor 202, the storage battery 101 is used for providing electric energy for the controller 200, so that the controller 200 can provide electric energy for the speed regulating motor 106 and the alarm 201, and the controller can work.
Through pneumatic cylinder 400 is provided with two at least, the fixed welding of pneumatic cylinder 400 power take off end is in main part 100 lower surface, pneumatic cylinder 400 is used for providing support and elevating power for main part 100, the fixed welding of main part 100 one end has bottom plate 401 is kept away from to pneumatic cylinder 400, bottom plate 401 is used for increasing the area of contact of pneumatic cylinder 400 and ground for equipment is more stable, makes things convenient for the staff to adjust the height of main part 100 simultaneously, when the height of main part 100 is lower, can upwards lift up main part 100 through pneumatic cylinder 400, when the main part 100 is high, can be through pneumatic cylinder 400 with the downward adjustment of main part 100 height, can guarantee that spindle 300 just in time is in detection draw-in groove 102 center department, ensures the accuracy of testing result.
The detection mechanism 103 is provided with a resistance spring 1031, a sliding cavity 1032, a detection rod 1033, a stop 1034 and a line drawing pen 1035; the sliding cavity 1032 is fixedly arranged on the top and the side of the main body 100 located in the detection card slot 102, the detection bar 1033 is inserted into the sliding cavity 1032 in a sliding manner, the resistance spring 1031 is sleeved outside the detection bar 1033, the resistance spring 1031 is arranged inside the sliding cavity 1032, a stopper 1034 is fixedly welded in the middle of the detection bar 1033, the resistance spring 1031 is installed on one side of the stopper 1034 away from the machine shaft 300, one ends of the detection bar 1033 located in the vertical paper tape cavity 104 and the transverse paper tape cavity 110 are respectively and fixedly inserted with line drawing pens 1035, the line drawing pens 1035 are used for drawing lines on the paper tape 108, when the detection is not performed, the stopper 1034 on the detection bar 1033 is pushed by the resistance spring 1031, so that the stopper 1034 drives the detection bar 1033 to push towards the detection card slot 102, when the detection is performed, the machine shaft 300 is located in the detection card slot 102, and the detection bar 1033 is pushed away from the detection card slot 102, the resistance spring 1031 is in a compressed state, the detection bar 1033 is pushed up when the shaft 300 vibrates towards the detection bar 1033, the detection bar 1033 is pushed towards the shaft 300 by the resistance spring 1031 when the shaft 300 vibrates in the opposite direction, and the line drawing pen 1035 draws a line on the paper tape 108 following the movement of the detection bar 1033.
Through the fixed welding of the inside pivot one end of rubber roller 105 has straight-tooth bevel gear 1051, the inside rubber roller 105 in horizontal paper tape chamber 110 passes through the inside rubber roller 105 rotation in vertical paper tape chamber 104 of straight-tooth bevel gear 1051 drive, is convenient for make vertical paper tape chamber 104 and the inside rubber roller 105 in horizontal paper tape chamber 110 all possess the same rotational speed for paper tape 108 is all the same at the inside velocity of motion in vertical paper tape chamber 104 and horizontal paper tape chamber 110, has guaranteed the accuracy of testing result.
Through main part 100 is located upper surface and side and is installed fixing bolt 501 by screw thread respectively, main part 100 has card 500 through fixing bolt 501 movable mounting, card 500 corresponds the setting with tape reel 109, card 500 is used for fixing tape reel 109, the convenient fixing and the change to tape reel 109, only need take off card 500 through unscrewing fixing bolt 501 when needing to change tape reel 109, alright realize the change to tape reel 109.
To sum up, when the vibration of the crankshaft 300 is detected, the crankshaft 300 is placed at the center of the top of the detecting slot 102, when the height of the main body 100 is low, the main body 100 can be lifted up by the hydraulic cylinder 400, when the height of the main body 100 is high, the height of the main body 100 can be adjusted downward by the hydraulic cylinder 400, so as to ensure that the crankshaft 300 is exactly at the center of the detecting slot 102, and ensure the accuracy of the detection result, when the crankshaft 300 is at the center of the top of the detecting slot 102, the detecting rod 1033 is pushed away by the crankshaft 300 from the detecting slot 102, the resistance spring 1031 is in a compressed state, when the crankshaft 300 vibrates towards the detecting rod 1033, the detecting rod 1033 is pushed away by the resistance spring 1031 towards the crankshaft 300, and the line drawing pen 1035 draws a line on the paper tape 108 following the movement of the detecting rod 1033, the paper tape 108 is driven by the rubber roller 105 to move at a constant speed, and the line drawing pen 1035 moves on the paper tape 108 along with the movement of the paper tape 108, so that the line drawing pen 1035 can draw a wavy line on the paper tape 108, the height of the wavy line is the amplitude of the crankshaft 300, and the ratio of the number of cycles generated in a unit time to the time of the wavy line is the vibration frequency of the crankshaft; according to the invention, under the condition that the steam turbine equipment is not stopped, the main body 300 is clamped and placed above the crankshaft 300, so that the vibration of the crankshaft 300 can be detected, the running continuity of the power plant equipment is ensured, secondly, the amplitude and the frequency of the vibration of the crankshaft 300 can be intuitively obtained in a mode of marking on a paper tape, and meanwhile, a maintenance alarm can be given out when the crankshaft 300 is seriously vibrated.
In the several embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A steam turbine crankshaft shaft vibration amplitude detection system, characterized by includes:
a crankshaft (300); and
the paper tape detection device comprises a main body (100), wherein the main body (100) is provided with a detection clamping groove (102), a detection mechanism (103), a vertical paper tape cavity (104), a rubber roller (105), a speed regulating motor (106), a contact switch (107), a paper tape (108), a paper tape winding cylinder (109) and a transverse paper tape cavity (110); the detection clamping groove (102) is fixedly arranged at the center of the bottom of the main body (100), the detection clamping groove (102) is used for placing a crankshaft (300) to be detected, the main body (100) is positioned at the top of the detection clamping groove (102) and one side of the detection clamping groove (102) is respectively provided with a detection mechanism (103), the detection mechanism (103) is used for detecting the vibration of the crankshaft (300), one side of the main body (100) positioned at the detection clamping groove (102) is fixedly provided with a vertical paper tape cavity (104), the main body (100) is positioned at the top of the detection clamping groove (102) and is fixedly provided with a transverse paper tape cavity (110), one end of the joint of the vertical paper tape cavity (104) and the transverse paper tape cavity (110) is respectively and rotatably provided with a group of rubber rollers (105), the rubber rollers (105) are used for driving a paper tape (108) to move, and the speed regulating motor (106, the utility model discloses a paper tape detection device, including speed regulating motor (106), contact switch (107), rubber roll (105), paper tape reel (109), paper tape (108) winding is outside at paper tape reel (109), paper tape (108) cooperate with detection mechanism (103).
2. The system for detecting the shaft vibration amplitude of a steam turbine crankshaft as defined in claim 1, further comprising:
a controller (200), the controller (200) being fixedly installed at an outer surface of the body (100) by screws, the controller (200) is provided with an alarm (201) and a microprocessor (202), the alarm (201) is electrically connected with the signal end of the microprocessor (202), the alarm (201) is used for giving an alarm, the speed regulating motor (106) is electrically connected with the signal end of the microprocessor (202), the microprocessor (202) can control the working state of the speed regulating motor (106), the contact switch (107) is electrically connected with the signal end of the microprocessor (202), the contact switch (107) is used for feeding back the vibration condition of the detection mechanism (103), when the contact switch (107) is triggered by the detection mechanism (103), the microprocessor (202) can receive an alarm signal, and the microprocessor (202) controls the alarm (201) to give an alarm.
3. The system for detecting the shaft vibration amplitude of a steam turbine crankshaft as claimed in claim 2, further comprising:
the storage battery (101), the storage battery (101) with microprocessor (202) electric energy input end electric connection, storage battery (101) are used for controller (200) provides the electric energy.
4. The system for detecting the shaft vibration amplitude of a steam turbine crankshaft as defined in claim 3, further comprising:
pneumatic cylinder (400), pneumatic cylinder (400) are provided with two at least, the fixed welding of pneumatic cylinder (400) power take off end is in main part (100) lower surface, pneumatic cylinder (400) are used for providing support and elevating power for main part (100), the fixed welding of main part (100) one end is kept away from in pneumatic cylinder (400) has bottom plate (401), bottom plate (401) are used for increasing the area of contact of pneumatic cylinder (400) and ground.
5. The system for detecting the shaft vibration amplitude of a steam turbine crankshaft as defined in claim 1, further comprising:
the detection mechanism (103) is provided with a resistance spring (1031), a sliding cavity (1032), a detection rod (1033), a stop block (1034) and a line drawing pen (1035); slide chamber (1032) fixed division and establish main part (100) are located and detect draw-in groove (102) top and side, it is in to detect pole (1033) slip grafting slide chamber (1032) inside, resistance spring (1031) cup joint outside detecting pole (1033), resistance spring (1031) set up inside slide chamber (1032), it has dog (1034) to detect pole (1033) middle part fixed welding, resistance spring (1031) are installed and are kept away from spindle (300) one side at dog (1034), it has setting-out pen (1035) to detect pole (1033) to be located vertical paper tape chamber (104) and horizontal paper tape chamber (110) inside one end fixed grafting respectively, setting-out pen (1035) are used for drawing a line on paper tape (108).
6. The system for detecting the shaft vibration amplitude of a steam turbine crankshaft as defined in claim 1, further comprising:
the rubber belt is characterized in that a straight-tooth bevel gear (1051) is fixedly welded at one end of a rotating shaft inside the rubber roller (105), and the rubber roller (105) inside the transverse paper belt cavity (110) drives the rubber roller (105) inside the vertical paper belt cavity (104) to rotate through the straight-tooth bevel gear (1051).
7. The system for detecting the shaft vibration amplitude of a steam turbine crankshaft as defined in claim 1, further comprising:
main part (100) are located upper surface and side and are installed fixing bolt (501) by screw thread respectively, main part (100) have card (500) through fixing bolt (501) movable mounting, card (500) correspond the setting with paper tape reel (109), card (500) are used for fixing paper tape reel (109).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910173573.7A CN109781239B (en) | 2019-03-07 | 2019-03-07 | Steam turbine crankshaft vibration amplitude detection system |
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| CN201910173573.7A CN109781239B (en) | 2019-03-07 | 2019-03-07 | Steam turbine crankshaft vibration amplitude detection system |
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| CN109781239B true CN109781239B (en) | 2021-05-04 |
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| CN110530987B (en) * | 2019-08-17 | 2021-12-10 | 安徽旭田农业发展有限公司 | Watermelon maturity detection device based on vibration analysis |
| CN112729521B (en) * | 2020-12-29 | 2023-04-07 | 苏州高瑞工业产品设计有限公司 | Vibration testing mechanism for portable dust collector |
| CN113566952A (en) * | 2021-09-22 | 2021-10-29 | 山东科融资本控股有限公司 | Vibration monitoring device for assembling management of battery pack detection equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS60242322A (en) * | 1984-12-21 | 1985-12-02 | Mitsubishi Electric Corp | Axial oscillation detector |
| JP2008241487A (en) * | 2007-03-28 | 2008-10-09 | Kanto Auto Works Ltd | Apparatus for measuring vibration of bearing |
| CN103162787A (en) * | 2011-12-09 | 2013-06-19 | 苏州工业园区高登威科技有限公司 | Vibration testing machine |
| CN204286782U (en) * | 2014-11-28 | 2015-04-22 | 贵州开磷（集团）有限责任公司 | A kind of non-contact electric eddy fixing structure of sensor of MEASUREMENT OF STEAM turbine axis vibration |
| CN106123967B (en) * | 2016-08-29 | 2018-09-25 | 安阳师范学院 | acceleration, amplitude detection system |
| CN206348064U (en) * | 2016-12-16 | 2017-07-21 | 大族激光科技产业集团股份有限公司 | A kind of amplitude detection mechanism |
| CN207180865U (en) * | 2017-09-07 | 2018-04-03 | 天津大唐国际盘山发电有限责任公司 | A kind of Steam Turbine Vibration detection means |
| CN207816453U (en) * | 2017-12-20 | 2018-09-04 | 苏州隆士丹自动化技术有限公司 | A kind of vibration detection device |
| CN109084882B (en) * | 2018-09-30 | 2023-09-26 | 华南理工大学 | Rotary disc vibration detection control device and method |
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