NL2031748A - Vibration abnormality detection and alarm device of gear pump - Google Patents
Vibration abnormality detection and alarm device of gear pump Download PDFInfo
- Publication number
- NL2031748A NL2031748A NL2031748A NL2031748A NL2031748A NL 2031748 A NL2031748 A NL 2031748A NL 2031748 A NL2031748 A NL 2031748A NL 2031748 A NL2031748 A NL 2031748A NL 2031748 A NL2031748 A NL 2031748A
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- NL
- Netherlands
- Prior art keywords
- vibration
- gear pump
- connecting rod
- fixing
- support
- Prior art date
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
- G01H1/003—Measuring characteristics of vibrations in solids by using direct conduction to the detector of rotating machines
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/187—Machine fault alarms
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Rotary Pumps (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The present invention relates to the technical field of gear pumps, and discloses a vibration 5 abnormality detection and alarm device of a gear pump. The device comprises a mounting base; the mounting base is provided with a fixing mechanism; gear pump equipment is fixedly installed on the fixing mechanism; vibration collecting mechanisms are symmetrically installed on both sides of the bottom end of the fixing mechanism; the vibration collecting mechanisms are connected with a vibration amplifying mechanism; the vibration amplifying mechanism comprises 10 a first bracket; the first bracket is fixedly installed at the vibration collecting mechanisms; a connecting rod is installed on the first bracket through a rotating shaft; a roller is installed on the top end of the connecting rod; a first spring is connected at both sides above the connecting rod; the other end of the first spring is connected with the first bracket; a switch mechanism is installed on the bottom end of the connecting rod; and a reinforcing mechanism is further installed on the 15 fixing mechanism. The present invention can collect vibration of the gear pump equipment through the disposed vibration collecting mechanisms, and can amplify a vibration effect through the vibration amplifying mechanism, so as to detect and alarm the vibration of the gear pump equipment.
Description
VIBRATION ABNORMALITY DETECTION AND ALARM DEVICE OF GEAR PUMP Technical Field The present invention relates to the technical field of gear pumps, in particular to a vibration abnormality detection and alarm device of a gear pump.
Background A gear pump is a rotary pump that transports liquid or pressurizes the liquid by working volume change and movement formed between a pump cylinder and a meshing gear. Two closed spaces are formed by two gears, a pump body and front and rear covers. When the gears rotate, the volume of the space on a gear release side increases to form vacuum, so that the liquid is sucked in; and then the volume of the space on a gear meshing side decreases, so that the liquid is squeezed into a pipeline. A suction chamber and a discharge chamber are separated by a meshing line of the two gears.
When the gear pump sucks in air or due to reasons of mechanical transmission, abnormal vibration of the gear pump will be generated. At this time, it is necessary to stop the gear pump for maintenance so as to prevent further damage to the gear pump caused by continuous work. There is a lack in abnormal vibration detection devices for gear pumps in a working process in the market; and most of the devices monitor vibration of equipment through vibration sensors, which has high cost and single functions and cannot protect the gear pumps.
Aiming at above problems, the present invention proposes a vibration abnormality detection and alarm device of a gear pump, which has the advantages of real-time vibration detection for gear pump equipment, accurate detection effect, reinforcement and protection for failing equipment, timely alarming and convenient installation.
Summary To solve the above technical problems, the present invention provides the following technical solution: A vibration abnormality detection and alarm device of a gear pump comprises a mounting base; the mounting base is provided with a fixing mechanism; gear pump equipment is fixedly installed on the fixing mechanism; vibration collecting mechanisms are symmetrically installed on both sides of the bottom end of the fixing mechanism; the vibration collecting mechanisms are connected with a vibration amplifying mechanism; the vibration amplifying mechanism comprises a first bracket; the first bracket is fixedly installed at the vibration collecting mechanisms; a connecting rod is installed on the first bracket through a rotating shaft; the length of the connecting rod above the rotating shaft is shorter than the length of the connecting rod under the rotating shaft; a roller is installed on the top end of the connecting rod; a first spring is connected at both sides above the connecting rod; the other end of the first spring is connected with the first bracket; a switch mechanism is installed on the bottom end of the connecting rod; a reinforcing mechanism is further installed on the fixing mechanism; and alarm equipment is installed on the mounting base.
Preferably, the fixing mechanism comprises a supporting plate; the supporting plate is fixedly installed on the mounting base; side plates are rotationally installed on both sides of the supporting plate; the top ends of the side plates are fixed by fixing sheets and fixing bolts; threaded rods are screwed onto middle parts of the supporting plate and the side plates; fixing disks are installed on the threaded rods; and anti-skid pads are installed on the fixing disks.
During fixation, the gear pump equipment is placed on the fixing disks on the supporting plate; then the two side plates are rotated, so that the fixing disks on the side plates are fixed on the gear pump equipment; the two side plates are fixedly connected by the fixing sheets and the fixing bolts; and then the threaded rods are rotated to drive the fixing disks to move, so that the fixing disks tightly fix the gear pump equipment on the fixing mechanism.
Preferably, each vibration collecting mechanism comprises chutes; the chutes are arranged on both sides of the supporting plate; a sliding block is installed in each chute in a sliding manner; a fixing screw is arranged on the sliding block; a supporting rod is installed on the sliding block; the first bracket is installed on the outer side of the supporting rod; a sliding sleeve is installed on the supporting rod; a contact rod is installed in the sliding sleeve in a sliding manner; a second spring is sleeved between the bottom end of the contact rod and the sliding sleeve; the top end of the contact rod is closely attached to the gear pump equipment; and the bottom end of the contact rod is closely attached to the roller.
After the gear pump equipment is fixed, the fixing screw on the sliding block is loosened; the position of the sliding block in the chute is moved, so that the supporting rod on the sliding block drives the sliding sleeve to move, and the top end of the contact rod in the sliding sleeve is closely attached to a side wall of the gear pump equipment; the disposed second spring keeps the contact rod closely attached to the gear pump equipment and ensures that the contact rod can effectively collect vibration of the gear pump equipment; and then abnormal vibration collection of the gear pump equipment is completed. When the vibration is collected, the contact rod is moved in the sliding sleeve, so that the bottom end of the contact rod acts on the top end of the connecting rod and the connecting rod shakes horizontally. The first spring arranged on both sides above the connecting rod can ensure that the connecting rod is vertical at an initial state. When the gear pump vibrates, the contact rod collects the vibration and transmits the vibration to the roller on the top end of the connecting rod, so that the connecting rod shakes horizontally. When a set vibration range is reached, the switch mechanism on the bottom end of the connecting rod is triggered to work.
Preferably, the switch mechanism comprises a clamping plate; the clamping plate is fixedly installed on the bottom end of the connecting rod; a second bracket is installed on the outer side of the bottom end of the supporting rod; a clamping frame is installed on the second bracket; a first mounting groove is arranged in the clamping frame; a second mounting groove is arranged on the front side of the top end of the first mounting groove; a clamping strip is installed in the second mounting groove in a sliding manner; a third spring is sleeved on the clamping strip; the clamping strip acts on the clamping plate; conductive blocks are symmetrically installed on the back side of the clamping frame through telescopic rods; a fourth spring is sleeved on the telescopic rod; and a conductive sheet is correspondingly installed on the clamping plate.
When the connecting rod shakes, the clamping plate on the bottom end of the connecting rod swings into the clamping frame, so that the top end of the clamping plate is clamped by the clamping strip on the top end of the clamping frame. Meanwhile, the conductive sheet on the clamping plate is connected with two conductive blocks on the back side of the clamping frame, so that the conductive sheet is connected with the two conductive blocks. In this way, the alarm equipment and the reinforcing mechanism work for alarming and reinforcement of the gear pump equipment.
Preferably, the reinforcing mechanism comprises first sleeves symmetrically installed on the side plates; a push rod is installed in each first sleeve in a sliding and sealed manner; a fixing block is installed on the push rod; the first sleeves are connected with air pump equipment; and the air pump equipment is fixedly installed on the mounting base.
When the reinforcing mechanism works, the air pump equipment works to inflate the first sleeve, so that the push rod in the first sleeve slides out from the first sleeve under a pressure; and the fixing block on the top end of the push rod is then fixed on the gear pump equipment, so as to fix the gear pump equipment and prevent further damage caused by an excessive vibration amplitude of the gear pump equipment. In this way, the gear pump equipment is preliminarily protected before maintenance by workers.
Beneficial effects Compared with the prior art, the present invention has the beneficial effects:
1. According to the vibration abnormality detection and alarm device of the gear pump, during fixation, the gear pump equipment is placed on the fixing disks on the supporting plate; then the two side plates are rotated, so that the fixing disks on the side plates are fixed on the gear pump equipment; the two side plates are fixedly connected by the fixing sheets and the fixing bolts; and then the threaded rods are rotated to drive the fixing disks to move, so that the fixing disks tightly fix the gear pump equipment on the fixing mechanism, which is convenient for installation and fixation of the gear pump equipment.
2. According to the vibration abnormality detection and alarm device of the gear pump, after the gear pump equipment is fixed, the fixing screw on the sliding block is loosened; the position of the sliding block in the chute is moved, so that the supporting rod on the sliding block drives the sliding sleeve to move, and the top end of the contact rod in the sliding sleeve is closely attached to the side wall of the gear pump equipment; the disposed second spring keeps the contact rod closely attached to the gear pump equipment and ensures that the contact rod can effectively collect vibration of the gear pump equipment; and then abnormal vibration collection of the gear pump equipment is completed. When the vibration is collected, the contact rod is moved in the sliding sleeve, so that the bottom end of the contact rod acts on the top end of the connecting rod and the connecting rod shakes horizontally. The first spring arranged on both sides above the connecting rod can ensure that the connecting rod is vertical at an initial state. When the gear pump vibrates, the contact rod collects the vibration and transmits the vibration to the roller on the top end of the connecting rod, so that the connecting rod shakes horizontally. When the set vibration range is reached, the switch mechanism on the bottom end of the connecting rod is triggered to work. The disposed vibration collecting mechanisms can effectively collect the vibration of the gear pump equipment. Meanwhile, the vibration amplifying mechanism amplifies the vibration amplitude, so that accuracy of a detection effect is increased.
3. According to the vibration abnormality detection and alarm device of the gear pump, when the reinforcing mechanism works, the air pump equipment works to inflate the first sleeve, so that the push rod in the first sleeve slides out from the first sleeve under a pressure; and the fixing block on the top end of the push rod is then fixed on the gear pump equipment, so as to fix the gear pump equipment and prevent further damage caused by an excessive vibration amplitude of the gear pump equipment. In this way, the gear pump equipment is preliminarily protected before maintenance by workers.
Description of Drawings Fig. 1 is a structural schematic diagram of the present invention; Fig. 2 is an enlarged schematic diagram of the present invention at A in Fig. 1; and Fig. 3 is an enlarged schematic diagram of the present invention at B in Fig. 1. In the drawings: 1. mounting base; 2. fixing mechanism; 201. supporting plate; 202. side plate; 203. fixing sheet; 204. fixing bolt; 205. threaded rod; 206. fixing disk; 207. anti-skid pad; 3. gear pump equipment; 4. vibration collecting mechanism; 401. chute; 402. sliding block; 403. fixing screw; 404. supporting rod; 405. sliding sleeve; 406. contact rod; 407. second spring; 5. vibration amplifying mechanism; 501. first bracket; 502. rotating shaft; 503. connecting rod; 504. roller; 505. first spring; 8. switch mechanism; 601. clamping plate; 602. second bracket; 603. clamping frame; 604. first mounting groove; 605. second mounting groove; 606. clamping strip;
607. third spring; 608. telescopic rod; 609. conductive block; 8010. fourth spring; 6011. conductive sheet; 7. reinforcing mechanism; 701. first sleeve; 702. push rod; 703. fixing block;
704. air pump equipment; and 8. alarm equipment.
Detailed Description Technical solutions in embodiments of the present invention are described clearly and fully below in combination with the drawings in the embodiments of the present invention.
Apparently, the described embodiments are merely part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those ordinary skilled in the art without contributing creative labor will belong to the protection scope of the present invention.
5 Embodiment 1: As shown in Figs. 1-2, a vibration abnormality detection and alarm device of a gear pump comprises a mounting base 1; the mounting base 1 is provided with a fixing mechanism 2; gear pump equipment 3 is fixedly installed on the fixing mechanism 2; vibration collecting mechanisms 4 are symmetrically installed on both sides of the bottom end of the fixing mechanism 2; the vibration collecting mechanisms 4 are connected with a vibration amplifying mechanism 5; the vibration amplifying mechanism 5 comprises a first bracket 501; the first bracket 501 is fixedly installed at the vibration collecting mechanisms 4; a connecting rod 503 is installed on the first bracket 501 through a rotating shaft 502; the length of the connecting rod 503 above the rotating shaft 502 is shorter than the length of the connecting rod 503 under the rotating shaft 502; a roller 504 is installed on the top end of the connecting rod 503; a first spring 505 is connected at both sides above the connecting rod 503; the other end of the first spring 505 is connected with the first bracket 501; a switch mechanism 6 is installed on the bottom end of the connecting rod 503; a reinforcing mechanism 7 is further installed on the fixing mechanism 2; and alarm equipment 8 is installed on the mounting base 1.
The fixing mechanism 2 comprises a supporting plate 201; the supporting plate 201 is fixedly installed on the mounting base 1; side plates 202 are rotationally installed on both sides of the supporting plate 201; the top ends of the side plates 202 are fixed by fixing sheets 203 and fixing bolts 204; threaded rods 205 are screwed onto middle parts of the supporting plate 201 and the side plates 202; fixing disks 206 are installed on the threaded rods 205; and anti- skid pads 207 are installed on the fixing disks 206.
During fixation, the gear pump equipment 3 is placed on the fixing disks 206 on the supporting plate 201; then the two side plates 202 are rotated, so that the fixing disks 206 on the side plates 202 are fixed on the gear pump equipment 3; the two side plates 202 are fixedly connected by the fixing sheets 204 and the fixing bolts 204; and then the threaded rods 205 are rotated to drive the fixing disks 206 to move, so that the fixing disks 206 tightly fix the gear pump equipment 3 on the fixing mechanism 2.
Each vibration collecting mechanism 4 comprises chutes 401; the chutes 401 are arranged on both sides of the supporting plate 201; a sliding block 402 is installed in each chute 401 in a sliding manner; a fixing screw 403 is arranged on the sliding block 402; a supporting rod 404 is installed on the sliding block 402; the first bracket 501 is installed on the outer side of the supporting rod 404; a sliding sleeve 405 is installed on the supporting rod 404; a contact rod 406 is installed in the sliding sleeve 405 in a sliding manner; a second spring 407 is sleeved between the bottom end of the contact rod 406 and the sliding sleeve 405; the top end of the contact rod 408 is closely attached to the gear pump equipment 3; and the bottom end of the contact rod 406 is closely attached to the roller 504. After the gear pump equipment 3 is fixed, the fixing screw 403 on the sliding block 402 is loosened; the position of the sliding block 402 in the chute 401 is moved, so that the supporting rod 404 on the sliding block 402 drives the sliding sleeve 405 to move, and the top end of the contact rod 406 in the sliding sleeve 405 is closely attached to a side wall of the gear pump equipment 3; the disposed second spring 407 keeps the contact rod 406 closely attached to the gear pump equipment 3 and ensures that the contact rod 406 can effectively collect vibration of the gear pump equipment 3; and then abnormal vibration collection of the gear pump equipment 3 is completed.
When the vibration is collected, the contact rod 406 is moved in the sliding sleeve 405, so that the bottom end of the contact rod 406 acts on the top end of the connecting rod 503 and the connecting rod 503 shakes horizontally.
The first spring 505 arranged on both sides above the connecting rod 503 can ensure that the connecting rod 503 is vertical at an initial state.
When the gear pump 3 vibrates, the contact rod 406 collects the vibration and transmits the vibration to the roller 504 on the top end of the connecting rod 503, so that the connecting rod 503 shakes horizontally.
When a set vibration range is reached, the switch mechanism 6 on the bottom end of the connecting rod 503 is triggered to work.
Embodiment 2: As shown in Figs. 1-3, a vibration abnormality detection and alarm device of a gear pump comprises a mounting base 1; the mounting base 1 is provided with a fixing mechanism 2; gear pump equipment 3 is fixedly installed on the fixing mechanism 2; vibration collecting mechanisms 4 are symmetrically installed on both sides of the bottom end of the fixing mechanism 2; the vibration collecting mechanisms 4 are connected with a vibration amplifying mechanism 5; the vibration amplifying mechanism 5 comprises a first bracket 501; the first bracket 501 is fixedly installed at the vibration collecting mechanisms 4; a connecting rod 503 is installed on the first bracket 501 through a rotating shaft 502; the length of the connecting rod 503 above the rotating shaft 502 is shorter than the length of the connecting rod 503 under the rotating shaft 502; a roller 504 is installed on the top end of the connecting rod 503; a first spring 505 is connected at both sides above the connecting rod 503; the other end of the first spring 505 is connected with the first bracket 501; a switch mechanism 6 is installed on the bottom end of the connecting rod 503; a reinforcing mechanism 7 is further installed on the fixing mechanism 2; and alarm equipment 8 is installed on the mounting base 1. The fixing mechanism 2 comprises a supporting plate 201; the supporting plate 201 is fixedly installed on the mounting base 1; side plates 202 are rotationally installed on both sides of the supporting plate 201; the top ends of the side plates 202 are fixed by fixing sheets 203 and fixing bolts 204; threaded rods 205 are screwed onto middle parts of the supporting plate 201 and the side plates 202; fixing disks 206 are installed on the threaded rods 205; and anti- skid pads 207 are installed on the fixing disks 206.
Each vibration collecting mechanism 4 comprises chutes 401; the chutes 401 are arranged on both sides of the supporting plate 201; a sliding block 402 is installed in each chute 401 in a sliding manner; a fixing screw 403 is arranged on the sliding block 402; a supporting rod 404 is installed on the sliding block 402; the first bracket 501 is installed on the outer side of the supporting rod 404; a sliding sleeve 405 is installed on the supporting rod 404; a contact rod 406 is installed in the sliding sleeve 405 in a sliding manner; a second spring 407 is sleeved between the bottom end of the contact rod 406 and the sliding sleeve 405; the top end of the contact rod 406 is closely attached to the gear pump equipment 3; and the bottom end of the contact rod 406 is closely attached to the roller 504.
The switch mechanism 6 comprises a clamping plate 601; the clamping plate 601 is fixedly installed on the bottom end of the connecting rod 503; a second bracket 802 is installed on the outer side of the bottom end of the supporting rod 404; a clamping frame 603 is installed on the second bracket 602; a first mounting groove 604 is arranged in the clamping frame 603; a second mounting groove 805 is arranged on the front side of the top end of the first mounting groove 604; a clamping strip 606 is installed in the second mounting groove 605 in a sliding manner; a third spring 607 is sleeved on the clamping strip 606; the clamping strip 606 acts on the clamping plate 601; conductive blocks 609 are symmetrically installed on the back side of the clamping frame 603 through telescopic rods 608; a fourth spring 6010 is sleeved on the telescopic rods 608; and a conductive sheet 8011 is correspondingly installed on the clamping plate 601.
The reinforcing mechanism 7 comprises first sleeves 701 symmetrically installed on the side plates 202; a push rod 702 is installed in each first sleeve 701 in a sliding and sealed manner; a fixing block 703 is installed on the push rod 702; the first sleeves 701 are connected with air pump equipment 704; and the air pump equipment 704 is fixedly installed on the mounting base 1.
Working principle: During fixation, the gear pump equipment 3 is placed on the fixing disks 206 on the supporting plate 201; then the two side plates 202 are rotated, so that the fixing disks 206 on the side plates 202 are fixed on the gear pump equipment 3; the two side plates 202 are fixedly connected by the fixing sheets 203 and the fixing bolts 204; and then the threaded rods 205 are rotated to drive the fixing disks 206 to move, so that the fixing disks 206 tightly fix the gear pump equipment 3 on the fixing mechanism 2.
Further, after the gear pump equipment 3 is fixed, the fixing screw 403 on the sliding block 402 is loosened; the position of the sliding block 402 in the chute 401 is moved, so that the supporting rod 404 on the sliding block 402 drives the sliding sleeve 405 to move, and the top end of the contact rod 406 in the sliding sleeve 405 is closely attached to a side wall of the gear pump equipment 3; the disposed second spring 407 keeps the contact rod 408 closely attached to the gear pump equipment 3 and ensures that the contact rod 406 can effectively collect vibration of the gear pump equipment 3; and then abnormal vibration collection of the gear pump equipment 3 is completed. When the vibration is collected, the contact rod 406 is moved in the sliding sleeve 405, so that the bottom end of the contact rod 406 acts on the top end of the connecting rod 503 and the connecting rod 503 shakes horizontally. The first spring 505 arranged on both sides above the connecting rod 503 can ensure that the connecting rod 503 is vertical at an initial state. When the gear pump 3 vibrates, the contact rod 406 collects the vibration and transmits the vibration to the roller 504 on the top end of the connecting rod 503, so that the connecting rod 503 shakes horizontally. When a set vibration range is reached, the switch mechanism 6 on the bottom end of the connecting rod 503 is triggered to work.
When the connecting rod 503 shakes, the clamping plate 601 on the bottom end of the connecting rod 503 swings into the clamping frame 603, so that the top end of the clamping plate 601 is clamped by the clamping strip 606 on the top end of the clamping frame 603. Meanwhile, the conductive sheet 6011 on the clamping plate 601 is connected with two conductive blocks 609 on the back side of the clamping frame 603, so that the conductive sheet 6011 is connected with the two conductive blocks 609. In this way, the alarm equipment 8 and the reinforcing mechanism 7 work for alarming and reinforcement of the gear pump equipment 3. When the reinforcing mechanism 7 works, the air pump equipment 704 works to inflate the first sleeve 701, so that the push rod 702 in the first sleeve 701 slides out from the first sleeve 701 under a pressure; and the fixing block 703 on the top end of the push rod 702 is then fixed on the gear pump equipment 3, so as to fix the gear pump equipment 3 and prevent further damage caused by an excessive vibration amplitude of the gear pump equipment 3. In this way, the gear pump equipment 3 is preliminarily protected before maintenance by workers.
Although the embodiments of the present invention have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, replacements and transformations can be made to the embodiments without departing from the principle and spirit of the present invention, and the scope of the present invention is limited by the appended claims and the equivalents thereof.
Claims (5)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202110708605.6A CN113436418B (en) | 2021-06-25 | 2021-06-25 | Gear pump vibration anomaly detection and alarm device |
Publications (2)
Publication Number | Publication Date |
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NL2031748A true NL2031748A (en) | 2022-12-30 |
NL2031748B1 NL2031748B1 (en) | 2023-03-13 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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NL2031748A NL2031748B1 (en) | 2021-06-25 | 2022-04-30 | Vibration abnormality detection and alarm device of gear pump |
Country Status (2)
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CN (1) | CN113436418B (en) |
NL (1) | NL2031748B1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN209278114U (en) * | 2018-11-30 | 2019-08-20 | 南京欧瑞克泵阀有限公司 | A kind of efficient vehicle-mounted dedicated gear pump |
CN112201015A (en) * | 2020-09-29 | 2021-01-08 | 西安和光明宸科技有限公司 | Tunnel vibration monitoring alarm device |
CN112268612A (en) * | 2020-10-15 | 2021-01-26 | 上海锶众机电科技有限公司 | Electromechanical device vibration detection device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US7333022B2 (en) * | 2005-04-13 | 2008-02-19 | Welltech Semiconductor Inc. | Safety monitoring mechanism of a wafer fabrication platform |
CN101709993B (en) * | 2009-11-09 | 2011-10-19 | 田陆 | Vibration signal acquisition device |
CN108267119B (en) * | 2017-12-26 | 2020-07-31 | 赣州德业电子科技有限公司 | Building slope warning equipment for building monitoring |
CN211452591U (en) * | 2020-02-16 | 2020-09-08 | 张鲁 | Vibration monitoring device for coal mine electromechanical equipment |
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2021
- 2021-06-25 CN CN202110708605.6A patent/CN113436418B/en active Active
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2022
- 2022-04-30 NL NL2031748A patent/NL2031748B1/en active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN209278114U (en) * | 2018-11-30 | 2019-08-20 | 南京欧瑞克泵阀有限公司 | A kind of efficient vehicle-mounted dedicated gear pump |
CN112201015A (en) * | 2020-09-29 | 2021-01-08 | 西安和光明宸科技有限公司 | Tunnel vibration monitoring alarm device |
CN112268612A (en) * | 2020-10-15 | 2021-01-26 | 上海锶众机电科技有限公司 | Electromechanical device vibration detection device |
Also Published As
Publication number | Publication date |
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CN113436418B (en) | 2022-08-02 |
NL2031748B1 (en) | 2023-03-13 |
CN113436418A (en) | 2021-09-24 |
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