CN205808339U - A kind of opened gap measuring instrument - Google Patents
A kind of opened gap measuring instrument Download PDFInfo
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- CN205808339U CN205808339U CN201620678525.5U CN201620678525U CN205808339U CN 205808339 U CN205808339 U CN 205808339U CN 201620678525 U CN201620678525 U CN 201620678525U CN 205808339 U CN205808339 U CN 205808339U
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- Prior art keywords
- measuring instrument
- gap measuring
- gap
- opened gap
- probe
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Abstract
A kind of opened gap measuring instrument, opened gap measuring instrument includes gap probe (4), Drive assembly and displacement measurement assembly, described Drive assembly includes vibrator (6) and vibration control ring (5), institute's displacement measurement assembly includes that bar (2) fixed by eddy current displacement sensor (3) and displacement transducer, described gap probe (4) is set among vibration control ring (5), described vibration control ring (5) connects vibrator (6), the eddy current displacement sensor (3) of the dynamic respond measuring described gap probe (4) is located at displacement transducer and fixes on bar (2).
Description
Technical field
This utility model belongs to fields of measurement, particularly relates to a kind of opened gap measuring instrument.
Background technology
In frame for movement, due to assembling and the demand of lubrication, between each parts faying face, inevitably there is gap.
Due to the existence in faying face gap, under the effect of external force and moment of face, bonded block opposed attachment surfaces can produce skew, this
Skew also inevitably results in structure member and produces skew relative to ideal position, thus causes the decline of response accuracy.Additionally, be subject to
The impact of the factors such as abrasion, heat effect and the local deformation produced in motor process, gap width will be gradually increased, thus constantly
Change the stressing conditions between parts, cause abrasion aggravation between component, harsh noise can be produced simultaneously, have a strong impact on the fortune of system
Dynamic precision and stability, and then the power performance of frame for movement is declined.Gap width measurement can aid between understanding difference
The action rule of system under gap, for controlling and eliminate the system deviation induced by gap to provide basis.Therefore, gap width is studied
Measuring, especially dynamic clearance value monitoring has practical significance.The structure of a series of exquisitenesses of people utility model and side
Formula measures the size of gap width.Such as, gap width can be accurately measured in the combination utilizing gap clearance gauge；Utilize image processing
Mode can measure the size of gap width easily；Even occur in that now the digital vernier clearance ruler of some electronic types.
It is presently used for clearance measurement mode more, but main gap measuring apparatus and mode have a following deficiency: gap
Clearance gauge combination operation is complicated, can bring error, and certainty of measurement can be belonged to by artificial subjective factor and material during combination
The impact of property；The mode precision of image processing is poor, and can only the gap width of outer, measuring mechanism gap；Digital vernier clearance ruler
Owing to measuring the restriction of head thickness, it is impossible to realize the accurate measurement of minim gap value.
Disclosed in patent documentation CN104359378 A, a kind of digital vernier clearance ruler includes vernier cursor assembly, pressure measxurement
Assembly, attachment means, described numeral clearance ruler assembly includes vernier (2), main scale (1), trip bolt (3)；Described pressure measxurement
Assembly includes pressure transducer (6), distance rod (8), linear bearing (5), fastening bolt (7)；Described attachment means includes tiltedly connecting
Extension bar (4), pin (9), master link (10), connecting bolt (11).This patent uses slide gauge as measuring main scale, passes through
The micro-displacement of distance rod is amplified by attachment means, it is achieved the accurate measurement of minim gap value.But this patent is due to self structure
Restriction, it is impossible to realize the measurement of small space internal clearance value.
Disclosed in patent documentation CN204064527U, a kind of Shaft Torque measured based on current vortex relative displacement is surveyed online
Electricity testing device includes tested rotating shaft, left and right snap ring, auxiliary support, displacement measurement arm, reference arm, damping-constraining device, current vortex displacement
Sensor and measuring circuit；Left and right snap ring is individually fixed in the two ends of tested axle of walking around, and auxiliary support is positioned at left and right snap ring two
Person centre position, is installed in tested rotating shaft；The butt end of displacement measurement arm and reference arm respectively by left and right snap ring with tested turn
Axle connects firmly, and rotates together with rotating shaft；The other end taper end of displacement measurement arm and reference arm is freely placed at auxiliary and supports, and becomes
Free end, time static, displacement measurement arm and reference arm are parallel to each other, and are parallel to survey simultaneously and turn shaft axis；Displacement measurement arm
Free end face reflective electric vortex displacement transducer is installed on reference arm, the free end face of reference arm is at displacement measurement arm
Copper sensing disk is installed, forms the reference point to eddy displacement sensor；At displacement measurement arm and the free end of reference arm
Outside connects identical damping-constraining device respectively, and the shell of damping-constraining device is fixed on auxiliary and supports, and current vortex displacement senses
Device is arranged on the free end of displacement measurement arm, constitutes the relative reference point measuring displacement with reference arm free end；Measuring circuit is solid
Being scheduled in tested rotating shaft, output drive to eddy current sensor, eddy current sensor signals is input to measuring circuit, measuring circuit according to
Gather signal and calculate real-time torque load data.This patent is suitable for the high accuracy of the small torsional deflection of large-diameter size and surveys
Examination, but this patent cannot realize the accurate measurement of minim gap value.
Disclosed in patent documentation CN103017647 A, the detection method of a kind of hydraulic pressure counter-blow hammer tup displacement is by hydraulic pressure pair
Hammer tup side vertical direction engraves groove scale, uses and is fixed in frame and just detection sensor sense to groove scale
Answering tup groove to move, when groove enters eddy current displacement sensor induction region, detection sensor exports one with displacement
Amount continually varying voltage signal, by detecting the voltage signal of output in real time and calculated, during determining that tup hits
Displacement；Concretely comprise the following steps: 1) engrave multiple equidistant and equal-sized recessed in hydraulic pressure counter-blow hammer tup side vertical direction
Groove, is just installing detection sensor in counter-blow hammer frame, is being separately mounted to warp when upper and lower tup hits the position of groove scale
The position crossed；2) starting hydraulic pressure counter-blow hammer, upper lower ram does hitting motion, when two tups are respectively through corresponding detection sensing
During device, detection sensor sensing to tup upper groove scale, eddy current displacement sensor output continually varying voltage signal；3)
The voltage signal transmission of collection is processed by data collecting card to host computer.This patent can detect counter-blow hammer tup in real time
Displacement, but this patent cannot realize the accurate measurement of minim gap value.
Therefore, urgency technical issues that need to address in this area are to overcome the deficiencies in the prior art, it is provided that one is used for
Accurately measure the opened gap measuring instrument of gap width.
Disclosed above-mentioned information is used only for strengthening the understanding to this utility model background in the background section, therefore
May comprise and not be formed in the information of prior art known to a person of ordinary skill in the art in this country.
Utility model content
The purpose of this utility model is to be achieved by the following technical programs.
According to one side of the present utility model, a kind of opened gap measuring instrument includes gap probe, Drive assembly and displacement
Measuring assembly, described Drive assembly includes that vibrator and vibration control ring, institute's displacement measurement assembly include that current vortex displacement passes
Bar fixed by sensor and displacement transducer, is located among vibration control ring for the described gap probe set measuring gap, described in shake
The dynamic ring connection vibrator that controls makes the vibratory response of vibrator be delivered to gap probe, and the displacement measuring described gap probe rings
The eddy current displacement sensor answered is located at displacement transducer and fixes on bar.
Preferably, described opened gap measuring instrument is provided with processor, and described processor is based on from two described current vortexs
The dynamic respond of displacement transducer and the vibratory response from described vibrator process.
Preferably, described processor is general processor, and further processor includes that memorizer, described memorizer are electronics
Erasable Programmable Read Only Memory EPROM EEPROM.
Preferably, described opened gap measuring instrument is provided with support component and a base, described support component include bracing frame and
Bracing frame fastening bolt, support frame as described above bottom connects base via bracing frame fastening bolt, and described base is provided with for moving
The dynamic inverted T shape groove with fixing support rack.
Preferably, described opened gap measuring instrument is provided with probe adjusting part, described probe adjusting part include rocker and
Spin-ended bolt, two ends, described rocker left and right connect support frame as described above via spin-ended bolt；The described gap probe spiral shell by tail end
Stricture of vagina connects described rocker, and institute's displacement sensors is fixed rod rear end and connected described rocker, and described vibrator is fixed rod rear end and connected
Described rocker.
Preferably, rotatable described rocker fix the anglec of rotation via described spin-ended bolt so that gap probe insert between
Gap, and make to leave space between described gap probe and the both sides in gap.
Preferably, described gap probe has different-diameter and described vibration control ring has corresponding different inner diameters.
Preferably, rocker is located on support frame as described above by the boss at two ends.
This utility model has the advantages that and improves significantly:
1) described opened gap measuring instrument relies on gap probe to realize the measurement of gap width, and simple in construction is easy to process.
2) described opened gap measuring instrument can realize the gap width measurement of different size diverse location, simple to operation.
3) described opened gap measuring instrument can realize the real-time monitoring of Mechanism Clearance value.
4) described opened gap measuring instrument is made without the stack combinations that operation is complicated compared with the clearance gauge of gap, measures knot
Fruit is not affected by artificial subjective factor and measurand material properties.
5) described opened gap measuring instrument is compared with image processing method, it is possible to measure the opened gap that there is certain depth
Internal clearance Distribution value.
6) described opened gap measuring instrument is compared with digital vernier clearance ruler, is not affected by measuring head thickness, can realize
The measurement of minim gap value.
7) described opened gap measuring instrument is compared with numeral clearance ruler, and gap probe structure is small and exquisite, can realize small space
The measurement of internal clearance value.
8) compact conformation, highly versatile, and process and assemble is easy, simple to operate.
Described above is only the general introduction of technical solutions of the utility model, in order to make technological means of the present utility model
Clearer, reach the degree that those skilled in the art can be practiced according to the content of description, and in order to
Above and other objects, features and advantages of the present utility model can be become apparent, below with of the present utility model specifically
Embodiment is illustrated.
Accompanying drawing explanation
By reading the detailed description in hereafter preferred embodiment, this utility model various other advantage and
Benefit will be clear from understanding for those of ordinary skill in the art, and Figure of description is only used for illustrating the mesh of preferred implementation
, and it is not considered as restriction of the present utility model, it should be apparent that, drawings discussed below is the most of the present utility model
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to this
A little accompanying drawings obtain other accompanying drawing, and in whole accompanying drawing, are presented with like reference characters identical parts；
In the accompanying drawings:
Fig. 1 is the structural representation of the opened gap measuring instrument according to one embodiment of this utility model；
Fig. 2 is the structural representation of the opened gap measuring instrument according to another embodiment of this utility model；
The component names that reference is corresponding: 1 base；Bar fixed by 2 displacement transducers；3 eddy current displacement sensors；Between 4
Gap probe；5 vibration control rings；6 vibrators；7 vibrators fix bar；8 rockers；9 bracing frames；10 spin-ended bolts；11 bracing frames are tight
Fixing bolt；
Below in conjunction with drawings and Examples, the utility model is further explained.
Detailed description of the invention
It is more fully described specific embodiment of the utility model below with reference to accompanying drawings.Although accompanying drawing shows this reality
With novel specific embodiment, it being understood, however, that may be realized in various forms this utility model and should not illustrated here
Embodiment limited.On the contrary, it is provided that these embodiments are able to be best understood from this utility model, and can be by
What scope of the present utility model was complete conveys to those skilled in the art.
It should be noted that employ some vocabulary in the middle of description and claim to censure specific components.Ability
Field technique personnel it would be appreciated that, technical staff may call same assembly with different nouns.This specification and right
In the way of requiring that difference by noun is not used as distinguishing assembly, but be used as distinguishing with assembly difference functionally
Criterion." comprising " or " including " as mentioned by the middle of description and claim in the whole text is an open language, therefore should solve
It is interpreted into " comprise but be not limited to ".Description subsequent descriptions is for implementing better embodiment of the present utility model, right described description
It is for the purpose of the rule of description, is not limited to scope of the present utility model.Protection domain of the present utility model
When being as the criterion depending on the defined person of claims.
For ease of the understanding to this utility model embodiment, below in conjunction with accompanying drawing do as a example by several specific embodiments into
The explanation of one step, and each accompanying drawing is not intended that the restriction to this utility model embodiment.
Fig. 1 is the structural representation of the opened gap measuring instrument of an embodiment of the present utility model, and this utility model is real
Execute example to be specifically described in conjunction with Fig. 1.
As it is shown in figure 1, an embodiment of the present utility model provides a kind of opened gap measuring instrument, a kind of opened gap
Measuring instrument, it includes gap probe 4, Drive assembly and displacement measurement assembly, and described Drive assembly includes vibrator 6, vibrator
Fixing bar 7 and vibration control ring 5, described vibrator 6 is located at described vibrator and fixes on bar 7, and institute's displacement measurement assembly includes
Bar 2 fixed by eddy current displacement sensor 3 and displacement transducer, is set in vibration control for measuring the described gap probe 4 in gap
Among ring 5 processed, described vibration control ring 5 connects vibrator 6 and makes the vibratory response of vibrator 6 be delivered to gap probe 4, is located at
Displacement transducer is fixed two eddy current displacement sensors 3 on bar 2 and is measured the dynamic respond of described gap probe 4.By inserting
The dynamic respond entering the gap probe 4 at interstitial site realizes the measurement of mechanism's internal clearance value.
Preferably, described opened gap measuring instrument is provided with processor to this utility model embodiment, described processor based on
Dynamic respond from two described eddy current displacement sensors 3 and the vibratory response from described vibrator 6 process.Two
Individual described eddy current displacement sensor 3 is in order to measure the dynamic respond of 4 two diverse locations of gap probe, according to the displacement recorded
Response utilizes backlash characteristics to realize the accurate measurement of gap width.
In one embodiment, described processor based on below equation calculated gap value,
Wherein, XiW (), i=1,2,3,4, it represents that vibrator energized position, two eddy current displacement sensors are surveyed respectively
Dynamic respond between dynamic respond and gap probe and the surveyed gap of amount, HLRepresent the frequency response function of gap probe 4, F
(ω) exciting force of vibrator 6, F are representednl(ω) non-linear force in surveyed gap is represented.Therefore can ask for gap by formula 1 to visit
Pin 4 contacts the dynamic respond X of end with measured gap4(ω) with suffered backlash nonlinearity power Fnl(ω)；By Fourier's inversion
Change commanders X4(ω) and Fnl(ω) being transformed into time domain, then draw backlash nonlinearity force-displacement curve, it is three linear, curve two
Distance between flex point is added the diameter of gap probe and is surveyed gap width.
In this utility model embodiment preferably, processor can compile, organize or analytical data.Processor can include
General processor, digital signal processor, application-specific integrated circuit ASIC, on-site programmable gate array FPGA, analog circuit, numeral
Circuit, and combinations thereof or the processor of other known or later exploitations.Processor can include memorizer, and this memorizer can be
Volatile memory or nonvolatile memory.Memorizer can include that one or more read only memory ROM, random access memory are deposited
Reservoir RAM, flash memory, Electrical Erasable programmable read only memory EEPROM or other type of memorizer.
Fig. 2 is the structural representation of the opened gap measuring instrument of an embodiment of the present utility model, and this utility model is real
Execute example to be specifically described in conjunction with Fig. 2.
As in figure 2 it is shown, an embodiment of the present utility model provides a kind of opened gap measuring instrument, a kind of opened gap
Measuring instrument, it includes gap probe 4, Drive assembly, displacement measurement assembly, and described Drive assembly includes that vibrator 6, vibrator are solid
Fixed pole 7 and vibration control ring 5, described vibrator 6 is located at described vibrator and fixes on bar 7, and institute's displacement measurement assembly includes electricity
Bar 2 fixed by eddy displacement sensor 3 and displacement transducer, is set in vibration control for measuring the described gap probe 4 in gap
Among ring 5, described vibration control ring 5 connects vibrator 6 and makes the vibratory response of vibrator 6 be delivered to gap probe 4, is located at position
Displacement sensor is fixed two eddy current displacement sensors 3 on bar 2 and is measured the dynamic respond of described gap probe 4, described opening
Clearance meter is provided with support component and a base 1, and described support component includes bracing frame 9 and bracing frame fastening bolt 11, described
Bracing frame 9 bottom connects base 1 via bracing frame fastening bolt 11, and described base 1 is provided with for mobile and fixing support rack 9
Inverted T shape groove.
Preferably, described opened gap measuring instrument is provided with probe adjusting part, described probe to this utility model embodiment
Adjusting part includes that rocker 8 and spin-ended bolt 10, described rocker about 8 two ends connect support frame as described above 9 via spin-ended bolt 10；
The described gap probe 4 threaded described rocker 8 by tail end, institute's displacement sensors is fixed and is shaken described in the connection of bar 2 rear end
Plate 8, described vibrator is fixed bar 7 rear end and is connected described rocker 8.
Preferably, rotatable described rocker 8 rotates this utility model embodiment via described spin-ended bolt 10 is fixing
Angle is so that gap probe 4 inserts gap, and makes to leave space between described gap probe 4 and the both sides in gap.
Preferably, described gap probe 4 has different-diameter to this utility model embodiment and described vibration control ring 5 has
There is corresponding different inner diameters, can greatly extend clearance measurement scope by the gap probe 4 of different-diameter, it is achieved minim gap
The measurement of value.
Preferably, institute's displacement measurement assembly includes the current vortex displacement sensing of more than three to this utility model embodiment
Device 3, rocker 8 is located on support frame as described above 9 by the boss at two ends.
Preferably, the vibration information of surveyed gap probe 4 can be passed through data line by described eddy current displacement sensor 3
It is transferred to data acquisition equipment, and data process will be gathered by computer, to realize digitized measurement.
Preferably, described opened gap measuring instrument can measure the internal clearance value point of the opened gap that there is certain depth
Cloth, simultaneously can be in order to realize the gap width Monitoring on Dynamic Change of Mechanism Clearance.
Although embodiment of the present utility model being described above in association with accompanying drawing, but this utility model not limiting to
In above-mentioned specific embodiments and applications field, above-mentioned specific embodiments is the most schematic, guiding, and not
It is restrictive.Those of ordinary skill in the art is under the enlightenment of this specification and without departing from this utility model claim
In the case of the scope protected, it is also possible to make a variety of forms, these belong to the row of this utility model protection.
Claims (10)
1. an opened gap measuring instrument, it includes gap probe (4), Drive assembly and displacement measurement assembly, described excitation group
Part includes vibrator (6) and vibration control ring (5), and institute's displacement measurement assembly includes eddy current displacement sensor (3) and displacement
Bar (2) fixed by sensor, it is characterised in that: described gap probe (4) is set among vibration control ring (5), described vibration control
Ring processed (5) connects vibrator (6), and the eddy current displacement sensor (3) of the dynamic respond measuring described gap probe (4) is located at position
Displacement sensor is fixed on bar (2).
Opened gap measuring instrument the most according to claim 1, it is characterised in that: described opened gap measuring instrument is provided with process
Device.
Opened gap measuring instrument the most according to claim 1, it is characterised in that: described Drive assembly is provided with vibrator and fixes
Bar (7), described vibrator (6) is located at described vibrator and fixes on bar (7).
Opened gap measuring instrument the most according to claim 1, it is characterised in that: described opened gap measuring instrument is provided with support
Assembly and base (1), described support component includes bracing frame (9) and bracing frame fastening bolt (11), support frame as described above (9) bottom
Connecting base (1) via bracing frame fastening bolt (11), described base (1) is provided with for mobile and fixing support rack (9)
Inverted T shape groove.
Opened gap measuring instrument the most according to claim 4, it is characterised in that: described opened gap measuring instrument is provided with probe
Adjusting part, described probe adjusting part includes rocker (8) and spin-ended bolt (10), and described rocker (8) two ends, left and right are via only
Rotation bolt (10) connects support frame as described above (9)；Described gap probe (4) the threaded described rocker (8) by tail end, described
Displacement transducer is fixed bar (2) rear end and is connected described rocker (8), and described vibrator is fixed bar (7) rear end and connected described rocker
(8)。
Opened gap measuring instrument the most according to claim 5, it is characterised in that: rotatable described rocker (8) is via institute
State the fixing anglec of rotation of spin-ended bolt (10).
Opened gap measuring instrument the most according to claim 1, it is characterised in that: described gap probe (4) has different straight
Footpath and described vibration control ring (5) have corresponding different inner diameters.
Opened gap measuring instrument the most according to claim 5, it is characterised in that: rocker (8) is located at by the boss at two ends
On support frame as described above (9).
Opened gap measuring instrument the most according to claim 2, it is characterised in that: described processor is general processor.
Opened gap measuring instrument the most according to claim 2, it is characterised in that: described processor includes memorizer, described
Memorizer is Electrical Erasable programmable read only memory EEPROM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620678525.5U CN205808339U (en) | 2016-06-30 | 2016-06-30 | A kind of opened gap measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620678525.5U CN205808339U (en) | 2016-06-30 | 2016-06-30 | A kind of opened gap measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205808339U true CN205808339U (en) | 2016-12-14 |
Family
ID=57512212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620678525.5U Expired - Fee Related CN205808339U (en) | 2016-06-30 | 2016-06-30 | A kind of opened gap measuring instrument |
Country Status (1)
| Country | Link |
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| CN (1) | CN205808339U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937875A (en) * | 2016-06-30 | 2016-09-14 | 西安交通大学 | Dynamic clearance measuring instrument and measuring method thereof |
-
2016
- 2016-06-30 CN CN201620678525.5U patent/CN205808339U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937875A (en) * | 2016-06-30 | 2016-09-14 | 西安交通大学 | Dynamic clearance measuring instrument and measuring method thereof |
| CN105937875B (en) * | 2016-06-30 | 2018-10-19 | 西安交通大学 | A kind of dynamic clearance measuring instrument and its measurement method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161214 Termination date: 20190630 |
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| CF01 | Termination of patent right due to non-payment of annual fee |