CN201454705U - Vibration protection device for centrifuge - Google Patents

Vibration protection device for centrifuge Download PDF

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Publication number
CN201454705U
CN201454705U CN2009201092700U CN200920109270U CN201454705U CN 201454705 U CN201454705 U CN 201454705U CN 2009201092700 U CN2009201092700 U CN 2009201092700U CN 200920109270 U CN200920109270 U CN 200920109270U CN 201454705 U CN201454705 U CN 201454705U
Authority
CN
China
Prior art keywords
vibration
centrifuge
signal
vibration protection
shell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2009201092700U
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Chinese (zh)
Inventor
徐志强
缪东卫
夏峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WUXI HOUDE AUTOMATION METER CO Ltd
Original Assignee
WUXI HOUDE AUTOMATION METER CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by WUXI HOUDE AUTOMATION METER CO Ltd filed Critical WUXI HOUDE AUTOMATION METER CO Ltd
Priority to CN2009201092700U priority Critical patent/CN201454705U/en
Application granted granted Critical
Publication of CN201454705U publication Critical patent/CN201454705U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a vibration protection device for a centrifuge, which comprises a shell, a sensing unit which is used for collecting a vibration acceleration signal, a signal processing unit which is connected with the sensing unit and is used for filtering, accumulating, amplifying and detecting the signal which is collected by the sensing unit to obtain a processed vibration speed signal, and an alarming unit which is connected with the signal processing unit and is used for issuing an alarm signal when the vibration speed signal exceeds the pre-determined alarming value. By adopting the reliable vibration acceleration sensor and adequately utilizing the powerful calculation and processing capacity of the single chip and the firm shell, the 24-hour real-time monitoring of the vibration of the centrifugal fan is realized.

Description

A kind of centrifuge vibration protection device
Technical field
The utility model relates to the centrifugal machine design field, particularly relates to a kind of centrifuge vibration protection device.
Background technology
Centrifuge often produces vibration at work, vibration can make efficient reduce, load increases, make some parts wears, tired and shorten the life-span, and vibration also can worsen people's work situation (as noise etc.), and violent vibration will directly influence the operate as normal of centrifuge, will jeopardize personal safety and cause device damage when serious.So must monitor and protect to the vibration of centrifuge.Yet because centrifuge is of a great variety, environment for use is complicated especially, and therefore universal vibration protection instrument often can not be suitable for.
Because centrifuge is mainly used in various mask works, as Separation of Solid and Liquid, environment for use is more abominable, therefore must consider the waterproof and dustproof of instrument, even explosion prevention function.In addition, because centrifuge in use often needs frequent feeding in raw material to wait operation, so the vibration situation also is complicated and changeable.If use the vibration monitoring of conventional vibration instrument as centrifuge, so not only be difficult to accurate measurement, life cycle also can shorten greatly.
The utility model content
The purpose of this utility model provides a kind of effectively waterproof and dustproof, good reliability, the centrifuge vibration protection device that the life-span is long.
For achieving the above object, the technical solution of the utility model provides a kind of centrifuge vibration protection device, comprises shell, also comprises:
Sensing unit places in the described shell, is used to gather vibration acceleration signal;
Signal processing unit places in the described shell, is connected with described sensing unit, is used for the signal of sensing unit collection is carried out filtering, integration, amplification and detection processing, the vibration velocity signal after obtaining handling;
Alarm unit is connected with signal processing unit, is used for sending alarm signal when described vibration velocity signal exceeds default alarming value.
Wherein, described vibration protection device also comprises display unit, is used to show the value of the vibration velocity signal after the described processing.
Wherein, described vibration protection device also comprises power supply, is used to whole device power supply.
Wherein, described vibration protection device also comprises the button that is provided with that is positioned at enclosure, is used to carry out the parameter setting.
Wherein, described sensor is a vibration acceleration sensor.
Wherein, described shell is totally-enclosed cast aluminium shell.
Wherein, described vibration protection device also comprises the warning delay unit, is used for time-delay and carries out alarm command.
Centrifuge provided by the utility model vibration protection device adopts totally-enclosed cast aluminium shell, and effectively water proof and dust proof is applicable to various adverse circumstances; Adopt advanced integrated electronic circuit, monitor accuracy and reliability preferably with comparing near switch, mechanical switch to have; The maloperation in the use has been avoided in the design of warning delay unit.
Description of drawings
Fig. 1 is the structure rating schematic diagram of the centrifuge of the utility model embodiment with the vibration protection device;
Fig. 2 is the shell mechanism schematic diagram of the centrifuge of the utility model embodiment with the vibration protection device;
Fig. 3 is the schematic block circuit diagram of the centrifuge of the utility model embodiment with the vibration protection device.
Wherein, 1: display screen; 2: signal processor; 3: terminals; 4: button; 5: relay; 6: single-chip microcomputer; 7: power supply; 8: circuit board.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is described in further detail.Following examples are used to illustrate the utility model, but are not used for limiting scope of the present utility model.
Embodiment of the present utility model provides a kind of centrifuge vibration protection device, comprises shell, also comprises: sensing unit, place in the described shell, and be used to gather vibration acceleration signal; Signal processing unit places in the described shell, is connected with described sensing unit, is used for the signal of sensing unit collection is carried out filtering, integration, amplification and detection processing, the vibration velocity signal after obtaining handling; Alarm unit is connected with signal processing unit, is used for sending alarm signal when described vibration velocity signal exceeds default alarming value.Be illustrated in figure 1 as the centrifuge vibration protection structure drawing of device among this embodiment, comprise display screen 1, signal processor 2, terminals 3, button 4, relay 5, single-chip microcomputer 6, power supply 7 and circuit board 8.Sensing unit adopts vibration acceleration sensor.Alarm unit is the two-way relay, can be used for connecting sound and light alarm or other control appliances, has one-level warning function and secondary warning function.When marked change has taken place vibration speed value; need adopt remedial measures; machine can continue operation; should be provided with one-level and report to the police this moment; when vibration speed value continues to increase; continue operation as machine and may cause damage, should take urgent measure and reduce vibration or shutdown, should be provided with secondary and report to the police this moment.Alarming value should can be set arbitrarily in measurement category.When vibration parameters surpassed alarm setting value, the indicator lamp of device should send alarm signal, and relay 5 begins action simultaneously.Enclosure of the present utility model also is provided with button 4 and the auxiliary demonstration of charactron, makes things convenient for the user to carry out the parameter setting.In addition, also have the output of 4-20mA analog quantity, the output of RS485 data signal.In order more to be adapted to the frequent operation of centrifuge, this device also designs the power on time-delay and the time-delay etc. of reporting to the police.Shell among the embodiment is totally-enclosed cast aluminium shell, as shown in Figure 2.Centrifuge among this embodiment adopts integrated design with the vibration protection device, installs simply, and linearity error is ± 1%, and resolution ratio is 0.1mm/s, and frequency range is 1-300Hz, and measurement category is 0-100.0mm/s, and alarm range is the 0-100% full scale.
Be illustrated in figure 3 as centrifuge among the utility model embodiment with the schematic block circuit diagram of vibration protection device.When adopting the 24V DC power supply, select the DC/DC power transfer module for use, signals collecting is finished by built-in vibration acceleration sensor, offers single-chip microcomputer through filtering, integration, detection, D/A after handling, and finishes the function that shows and report to the police by single-chip microcomputer again.When adopting the 220V AC-powered, select the AC/DC power transfer module for use, signals collecting is finished by built-in vibration acceleration sensor, offers single-chip microcomputer through filtering, integration, detection, D/A after handling, and has single-chip microcomputer to finish the function that shows and report to the police again.Also have outputs such as 4-20mA, RS485 in addition.
As can be seen from the above embodiments, the utility model embodiment makes full use of powerful computing of single-chip microcomputer and disposal ability by adopting reliable vibration acceleration sensor, in conjunction with firm shell, has reached round-the-clock, has monitored the purpose of centrifuge vibration in real time.Adopt advanced integrated electronic circuit, monitor accuracy and reliability preferably with comparing near switch, mechanical switch to have; The maloperation in the use has been avoided in the design of warning delay unit.
The above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims (7)

1. a centrifuge vibration protection device comprises shell, it is characterized in that, described vibration protection device comprises:
Sensing unit places in the described shell, is used to gather vibration acceleration signal;
Signal processing unit places in the described shell, is connected with described sensing unit, is used for the signal of sensing unit collection is carried out filtering, integration, amplification and detection processing, the vibration velocity signal after obtaining handling;
Alarm unit is connected with signal processing unit, is used for sending alarm signal when described vibration velocity signal exceeds default alarming value.
2. centrifuge vibration protection device as claimed in claim 1 is characterized in that described vibration protection device also comprises display unit, is used to show the value of the vibration acceleration signal after the described processing.
3. centrifuge vibration protection device as claimed in claim 2 is characterized in that described vibration protection device also comprises power supply, is used to whole device power supply.
4. centrifuge vibration protection device as claimed in claim 3 is characterized in that described vibration protection device also comprises the button that is provided with that is positioned at enclosure, is used to carry out the parameter setting.
5. centrifuge vibration protection device as claimed in claim 4 is characterized in that described sensor is a vibration acceleration sensor.
6. centrifuge vibration protection device as claimed in claim 5 is characterized in that, described shell is totally-enclosed cast aluminium shell.
7. centrifuge vibration protection device as claimed in claim 6 is characterized in that described vibration protection device also comprises the warning delay unit, is used for time-delay and carries out alarm command.
CN2009201092700U 2009-06-15 2009-06-15 Vibration protection device for centrifuge Expired - Fee Related CN201454705U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009201092700U CN201454705U (en) 2009-06-15 2009-06-15 Vibration protection device for centrifuge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009201092700U CN201454705U (en) 2009-06-15 2009-06-15 Vibration protection device for centrifuge

Publications (1)

Publication Number Publication Date
CN201454705U true CN201454705U (en) 2010-05-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009201092700U Expired - Fee Related CN201454705U (en) 2009-06-15 2009-06-15 Vibration protection device for centrifuge

Country Status (1)

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CN (1) CN201454705U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102721463A (en) * 2011-12-07 2012-10-10 上海瑞视仪表电子有限公司 Written test apparatus for measuring rotating machinery reciprocating vibration by using piezoelectric effect
CN105651313A (en) * 2015-12-31 2016-06-08 长沙全程数字机电科技有限公司 Safety impact protection method and structural vibration monitoring instrument
CN106076666A (en) * 2016-06-06 2016-11-09 淮南市鸿裕工业产品设计有限公司 Electric centrifuge safety protection component
CN107297282A (en) * 2017-07-20 2017-10-27 江苏华大离心机制造有限公司 A kind of vibration protection method of centrifuge

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102721463A (en) * 2011-12-07 2012-10-10 上海瑞视仪表电子有限公司 Written test apparatus for measuring rotating machinery reciprocating vibration by using piezoelectric effect
CN105651313A (en) * 2015-12-31 2016-06-08 长沙全程数字机电科技有限公司 Safety impact protection method and structural vibration monitoring instrument
CN106076666A (en) * 2016-06-06 2016-11-09 淮南市鸿裕工业产品设计有限公司 Electric centrifuge safety protection component
CN107297282A (en) * 2017-07-20 2017-10-27 江苏华大离心机制造有限公司 A kind of vibration protection method of centrifuge

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100512

Termination date: 20120615