CN208432333U - A kind of table top assembly - Google Patents
A kind of table top assembly Download PDFInfo
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- CN208432333U CN208432333U CN201820033069.8U CN201820033069U CN208432333U CN 208432333 U CN208432333 U CN 208432333U CN 201820033069 U CN201820033069 U CN 201820033069U CN 208432333 U CN208432333 U CN 208432333U
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- table top
- pedestal
- top assembly
- sensor
- calibration
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Abstract
The utility model belong to detection device technical field more particularly to a kind of table top assembly.The utility model provides a kind of table top assembly, this table top assembly includes pedestal and table top；The pedestal is that detachability is connect with the table top.The utility model is suitable for the calibrating of contact and noncontacting proximity sensor or calibration needs.Therefore, the pick up calibration table top which effectively solves the prior art is unable to satisfy the technological deficiency of the calibration of various contacts and contactless vibrating sensor.
Description
Technical field
The utility model belong to detection device technical field more particularly to a kind of table top assembly.
Background technique
Machine for generating vibration and passing it in other structures or equipment is known as vibration machine, and vibration occurs
System composed by device and required auxiliary device is known as shake table.By fixed magnetic field and in magnetic field and it is connected with alternating current
Moving coil interaction caused by the shake table of power drive be known as electric vibration table.
Medium frequency standard vibration platform (comparison method) is to generate standard when being compared method calibration to vibrating sensor and vialog
The device of sinusoidal vibration excitation.It usually by electrodynamic vibration shaker, power amplifier, sine vibration controller (or signal source and
Frequency meter) and ancillary equipment formed.The exciting force of shake table is connected with certain sinusoidal electricity by constant magnetic field and in magnetic field
Produced by the interaction of the coil of stream.Wherein, vibrating sensor, including eddy current displacement sensor, capacitive displacement sensing
Device, velocity sensor and acceleration transducer are widely applied in rotating machinery vibrating test.Vibration displacement sensor
The chief component of detector for displacement measuring, be mainly used for mechanical oscillation measurement, it using inductance, capacitor and or resistance change
Change the variable quantity that the displacement of mechanical oscillation is transformed into voltage or current, for measuring vibration displacement.Current vortex sensor
It is a kind of contactless vibration displacement sensor.Compared with other types of displacement sensor, current vortex sensor has many excellent
Point, such as high sensitivity, the range of linearity is big, and wide frequency range, structure size is small, strong antijamming capability and not by medium influence etc..
Since it is contactless with testee, it is therefore particularly suitable for the vibration monitoring of rotating machinery, axle position shift measurement and orbit of shaft center
Measurement etc..Current vortex sensor or capacitive displacement transducer measurement shaft vibration are generallyd use, is passed with speed or acceleration
Sensor measures the structural vibration of machine, has great importance to guarantee rotating machinery safe and stable operation.Velocity sensor is
Contact type measurement is suitable for structural vibration and measures, and common velocity sensor is the sensor with spring-quality system, sensing
Device is propped up by coil component spring piece hangs a coil, permanent magnet is filled on shell, when coil and magnet have relative motion, coil is cut
It cuts the magnetic line of force, generate voltage signal output, principle is similar with generator, therefore this kind of sensor is also known as magneto-electric vibrating sensing
Device.What it is due to its measurement is absolute movement of the machine relative to ground, also known as inertia-type or earthquake type sensor.Accelerate
Degree type vibrating sensor is also contact type measurement, and acceleration type vibrating sensor is mainly piezo crystal, and principle is sensing
A power directly proportional to acceleration is generated after the vibrated acceleration effect of device sensitive core body quality, piezoelectric material is acted on by this power
The charge signal directly proportional to this power is formed along its surface afterwards, by measuring since inertia force acts on piezo-electric crystal generation
Charge is the acceleration that can measure testee.In addition there are pressure resistance types and capacitance acceleration transducer.Acceleration transducer,
Especially piezoelectric acceleration transducer, due to the features such as its is small in size, light-weight, wide frequency range, in high-speed rotating machine
It is very extensive with being applied in the vibration monitoring of reciprocating machine.Therefore, the measurement method of vibrating sensor is divided into non-contact measurement
And contact type measurement.
According to national measurement relevant regulations, need periodically these vibrating sensors and work vibration meter to be carried out examining and determine/school
Standard, to ensure the accurate, reliable of vibrating sensor and work vibration meter.But found in laboratory verification/calibration process, respectively
The contact vibrating sensor (velocity sensor, acceleration transducer) of kind of producer production is not of uniform size, mounting means also it is each not
It is identical, need to bore various screw holes on vibration table to fix various velocity sensors and acceleration transducer.
And the non-contact displacement transducers such as eddy current displacement sensor, capacitive displacement transducer need table top finishing
Work, tested mesa surfaces cannot have mechanical defect (such as table top injustice, has pit or scar at local corrosion), prevent to survey
Measure error.Simultaneously for eddy current displacement sensor, the metal material of measurand is different, and the sensitivity of sensor is also not
With, in laboratory verification/calibration process, how be directed to different types of sensor, the different table top of quick-replaceable, and
Various contact vibrating sensors can be quickly fixed, by the working efficiency in strong influence laboratory.It needs according to tested pair
The finishing table top of the different production a variety of materials of elephant, to guarantee that measurement is accurate.So for the inspection of various types of sensors
Fixed/calibration, needs to make a variety of different table tops to guarantee the smooth development of calibrating/calibration.Moreover, usually vibration
Platform only provides a basic table top, or provides the pedestal of a mounting table, is unable to satisfy various contacts and non-
Calibrating/calibration of contact vibrating sensor.
Utility model content
In view of this, the present invention provides a kind of table top assemblys, effectively solve the pick up calibration of the prior art
Table top is unable to satisfy the technological deficiency of the calibration of various contacts and contactless vibrating sensor.
The utility model additionally provides a kind of table top assembly, including pedestal and table top；
The pedestal is that detachability is connect with the table top.
It should be noted that after the pedestal and the table top carry out detachability connection, the pedestal and the table top
Relative displacement will not occur, when examining and determine vibrating sensor, guarantee the transmitting for not influencing vibration, avoid measurement error, do not influence
The accuracy of calibrating.
Preferably, the detachability is connected as being bolted or snap connection.
Preferably, the table top is additionally provided with multiple screw holes.
Preferably, the table top is steel table top, the material of the table top is steel.
Preferably, the steel table top is specially No. 45 steel table tops, the steel are specially No. 45 steel.
Preferably, the surface of No. 45 steel table tops is handled by finishing.
Preferably, the pedestal is additionally provided with screw hole.
Preferably, the periphery of the pedestal is additionally provided with and increases side.
Increase when increasing for hollow type or full closed increases side preferably, described.
Preferably, the material of the pedestal is steel.
It should be noted that the screw hole of the pedestal of table top assembly passes through the screw hole of pedestal and the shake table of vibrating sensor
Pedestal rigid connection, the screw hole of the table top of table top assembly rigidly connected by bolt with the vibrating sensor for being calibrated/examining and determine
It connects, the two is mutually indepedent.The assembling screw hole of the table top of table top assembly itself passes through bolt and the assembling screw hole of pedestal connects.
The utility model provides a kind of table top assembly, and the pedestal of this table top assembly is connect with table top detachability, platform
The pedestal of the shake table of the pedestal and vibrating sensor of face assembly is rigidly connected, the table top of table top assembly be calibrated/examine
Fixed vibrating sensor rigid connection, the two are mutually indepedent.The table top assembly can be according to the need of different pick up calibrations
Want the various suitable table tops of quick-replaceable, thus meet the calibrating of various contacts and contactless vibrating sensor/
Calibration substantially increases the working efficiency of pick up calibration, while the pedestal of the table top assembly and table top are using removable
The rigid connection of unloading property, the table top assembly and the various vibration acceleration sensors and velocity sensor of accredited/calibration are adopted
With rigid connection, the transmitting of vibration is not had an impact, does not influence calibrating/calibration accuracy.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described.
Fig. 1 shows the assembling assumption diagram of the table top assembly for contactless sensor calibration；
Fig. 2 shows a kind of assembling assumption diagram of table top assembly of the sensor calibration for contact；
Fig. 3 shows the assembling assumption diagram of another table top assembly of the sensor calibration for contact；
Fig. 4 shows the structure chart of the pedestal of the table top assembly of the utility model；
Fig. 5 shows structure chart of the utility model for the table top of the table top assembly of contactless sensor calibration；
Fig. 6 shows structure chart of the utility model for a kind of table top of table top assembly of the sensor calibration of contact；
Fig. 7 shows structure of the utility model for the table top of another table top assembly of the sensor calibration of contact
Figure；
Fig. 8 shows the face upwarding stereogram after a kind of assembling of table top assembly of the utility model；
Fig. 9 shows the face upwarding stereogram after the assembling of another table top assembly of the utility model；
Figure 10 shows the side isometric view after the assembling of the table top assembly of the utility model；
Wherein, appended drawing reference, pedestal 1, pedestal assembling screw hole 11, hollow type increase screw hole 13, the bolt on side 12, pedestal
14, the erection bolt 24 of table top 2, the assembling screw hole 21 of table top, the screw hole 22 of table top, the center fixation hole 23 of table top, table top.
Specific embodiment
The utility model provides a kind of table top assembly, and the pick up calibration table top for solving the prior art can not expire
The technological deficiency of the calibration of the various contacts of foot and contactless vibrating sensor.
Below by the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Embodiment 1
It please refers to Fig.1 to Fig.3, present embodiments provides a kind of table top assembly, including pedestal and table top；
Pedestal 1 is that detachability is connect with table top 2.
It should be noted that the assembling screw hole 21 of table top is connected by the erection bolt 24 of table top and the assembling screw hole 11 of pedestal
It connects.
Embodiment 2
Fig. 1 to Figure 10 is please referred to, a kind of table top assembly, including pedestal and table top are present embodiments provided；
Pedestal 1 is that detachability is connect with table top 2.
It should be noted that pedestal 1 and table top 2 are detachability rigid connection.
Further, detachability is connected as being bolted.
It should be noted that pedestal 1 is connect with 2 detachability of table top specifically: the assembling screw hole 21 of table top and pedestal
It assembles screw hole 11 and detachability rigid connection is carried out by bolt.
It should be noted that in use, the pedestal (vibration of the shake table of the table top assembly pedestal 1 and vibrating sensor
Sewing platform base is that shake table itself carries, and can install lesser sensor) it is rigidly connected using interior-type bolt, while table top
The pedestal 1 and table top 2 of assembly are also rigidly connected using interior-type bolt, ensure that in calibrating/calibration process to vibration
Transmitting does not have an impact, and does not influence calibrating/calibration accuracy.
Further, table top 2 is additionally provided with multiple screw holes.
It should be noted that the acceleration sensing of the screw hole 22 of the table top of the table top assembly and various accredited/calibrations
Device and velocity sensor are bolted, and (screw hole 22 of table top is used to fix various touch sensors with bolt, because various
Touch sensor is not of uniform size, and the position of screw hole is also different, and the setting of screw hole 22 of table top is so that making for the utility model
It is wider with range) the various suitable table tops of quick-replaceable can be needed according to different sensor calibrating/calibrations, improve work
Make efficiency, ensure that calibrating/calibration precision, while table top pedestal will not be damaged itself.
Further, the material of table top 2 is steel.
Further, steel are specially No. 45 steel.
Further, the surface of No. 45 steel is handled by finishing.
Fig. 1 and Fig. 5 are please referred to, table top 2 is used for the calibrating or calibration of contactless vibration displacement sensor, and material is
No. 45 steel (steel that the corresponding big axis of power plant uses), surface is handled by finishing, meets vibration displacement sensor calibrating/calibration
Requirement.
Fig. 2, Fig. 3, Fig. 6 and Fig. 7 are please referred to, table top 2 is used for vibration acceleration/velocity sensor inspection of contact installation
The material of fixed or calibration, table top 2 is ordinary steel, various screw holes has been bored above, for different vibration acceleration/velocity sensors
Installation is fixed.
It should be noted that the center fixation hole 23 of table top is for fixing various touch sensors.
Further, pedestal 1 is additionally provided with screw hole 13.
Further, the periphery of pedestal 1, which is additionally provided with, increases side.
Further, increase when increasing for hollow type 12 or full closed increase side.
Further, the material of pedestal 1 is steel.
It should be noted that vibration of the pedestal of table top assembly by the screw hole 13 and bolt and vibrating sensor of its pedestal
The pedestal rigid connection of dynamic platform, the screw hole 22 of the table top of table top assembly pass through bolt and the vibrating sensor for being calibrated/examining and determine
Rigid connection, the two are mutually indepedent.The assembling screw hole 21 of the table top of table top assembly itself by the erection bolt 24 of table top and
The assembling screw hole 11 of pedestal connects.
It should be noted that the table top constitutional diagram of the utility model is applicable in calibrating/calibration that comparison method carries out sensor.
Embodiment 3
Present embodiments provide a kind of table top assembly, including pedestal and table top；
Pedestal 1 is that detachability is connect with table top 2.
It should be noted that pedestal 1 and table top 2 are detachability rigid connection.
Further, detachability is connected as snapping connection
It should be noted that pedestal 1 is not subjected to displacement with table top 2 after pedestal 1 and table top 2 carry out rigid snap connection,
The table top assembly can need the various suitable table tops of quick-replaceable according to different sensor calibrating/calibrations, to protect
Working efficiency is demonstrate,proved, while the table top assembly and the various vibration acceleration sensors and velocity sensor of accredited/calibration are adopted
With rigid connection, the transmitting of vibration is not had an impact, does not influence calibrating/calibration accuracy.
It should be noted that the table top constitutional diagram of the utility model is applicable in calibrating/calibration that comparison method carries out sensor.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the protection scope of the utility model.
Claims (7)
1. a kind of table top assembly, which is characterized in that including pedestal and table top；
The pedestal is that detachability is connect with the table top；The detachability is connected as being bolted or snap connection；Institute
It states table top and is additionally provided with multiple screw holes；
The pedestal is additionally provided with screw hole；
Wherein, the screw hole of the pedestal of the table top assembly is rigid by the pedestal of the screw hole of pedestal and the shake table of vibrating sensor
Property connection, the screw hole of the table top of the table top assembly is rigidly connected by bolt with the vibrating sensor for being calibrated/examining and determine.
2. table top assembly according to claim 1, which is characterized in that the material of the table top is steel.
3. table top assembly according to claim 2, which is characterized in that the steel are specially No. 45 steel.
4. table top assembly according to claim 3, which is characterized in that the surface of No. 45 steel is by finishing
Reason.
5. table top assembly according to claim 1, which is characterized in that the periphery of the pedestal, which is additionally provided with, increases side.
6. table top assembly according to claim 5, which is characterized in that described to increase when increasing for hollow type or full packet
Type increases side.
7. table top assembly according to claim 1, which is characterized in that the material of the pedestal is steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820033069.8U CN208432333U (en) | 2018-01-09 | 2018-01-09 | A kind of table top assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820033069.8U CN208432333U (en) | 2018-01-09 | 2018-01-09 | A kind of table top assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208432333U true CN208432333U (en) | 2019-01-25 |
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ID=65105646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820033069.8U Active CN208432333U (en) | 2018-01-09 | 2018-01-09 | A kind of table top assembly |
Country Status (1)
| Country | Link |
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| CN (1) | CN208432333U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036855A (en) * | 2018-01-09 | 2018-05-15 | 广东电网有限责任公司电力科学研究院 | A kind of table top assembly |
| CN112229504A (en) * | 2020-10-16 | 2021-01-15 | 中国航发沈阳发动机研究所 | Vibration sensor vertical vibration switching block and calibration structure thereof |
-
2018
- 2018-01-09 CN CN201820033069.8U patent/CN208432333U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036855A (en) * | 2018-01-09 | 2018-05-15 | 广东电网有限责任公司电力科学研究院 | A kind of table top assembly |
| CN112229504A (en) * | 2020-10-16 | 2021-01-15 | 中国航发沈阳发动机研究所 | Vibration sensor vertical vibration switching block and calibration structure thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200119 Address after: 510000 room 501-503, annex building, Huaye building, No.1-3, Chumo new street, Xihua Road, Yuexiu District, Guangzhou City, Guangdong Province Patentee after: Guangdong Electric Power Research Institute of energy technology limited liability company Address before: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8 Co-patentee before: Guangdong Electric Power Research Institute of energy technology limited liability company Patentee before: ELECTRIC POWER RESEARCH INSTITUTE, GUANGDONG POWER GRID CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 501-503, annex building, Huaye building, No.1-3 Chuimao new street, Xihua Road, Yuexiu District, Guangzhou City, Guangdong Province 510000 Patentee after: China Southern Power Grid Power Technology Co.,Ltd. Address before: Room 501-503, annex building, Huaye building, No.1-3 Chuimao new street, Xihua Road, Yuexiu District, Guangzhou City, Guangdong Province 510000 Patentee before: GUANGDONG ELECTRIC POWER SCIENCE RESEARCH INSTITUTE ENERGY TECHNOLOGY Co.,Ltd. |