CN205482705U - Displacement generator - Google Patents
Displacement generator Download PDFInfo
- Publication number
- CN205482705U CN205482705U CN201521075707.5U CN201521075707U CN205482705U CN 205482705 U CN205482705 U CN 205482705U CN 201521075707 U CN201521075707 U CN 201521075707U CN 205482705 U CN205482705 U CN 205482705U
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- screw
- displacement
- swivel nut
- thread
- hole
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Abstract
The utility model discloses a displacement generator, include: lifting bolt, digital displacement sensing device, slip screw rod, clamping screw and double -end swivel nut, digit displacement sensing device's one end and lifting bolt fixed connection, the other end and slip screw rod fixed connection, be provided with axially extending bore on the slip screw rod, be provided with the locating hole on the outer wall of slip screw rod, clamping screw's one end is provided with the axially extending bore's that can stretch into the slip screw rod extension, be provided with the spout on the extension, structure fixed connection is surveyed through installation base and quilt to clamping screw's the other end, slip screw rod and clamping screw and screw thread pitch imbalance opposite through two kinds of direction of rotation respectively are connected with the double -end swivel nut, during clamping screw's extension inserted the axially extending bore on the slip screw rod, set screw passed that the locating hole inserts in the spout and is fixed with the slip screw rod. Through using above -mentioned displacement generator, can simulate the displacement that the measurement station produced really and the accurate value of the displacement that will simulate most likely through showing that screen display shows.
Description
Technical field
This utility model relates to engineering structure experimental technique field, particularly to a kind of displacement generator.
Background technology
Large-sized Space Construction builds thing, such as nuclear plant safety shell structure, large stadium and other large scale industry construction of structures, clothes
Its displacement under work load or finder charge effect of long term monitoring or periodic detection and strain-responsive it is required to during labour.At present
Measuring shift value at measuring point for Large Scale Architecture thing many employings pull spring method, main thought is to first pass through tension wire high in structure
Place, the displacement of remote measuring point are delivered to ground or accessibility fixing control position, and then by demarcating measurement system, survey
Obtain the absolute displacement values of target measuring point.
Fig. 1 is the structural representation that pull spring method of the prior art measures system, as it is shown in figure 1, pull spring method measures system by surveying
The compositions such as point 1, bracing cable 2, fixing point 3, displacement meter 4 and weight 5.Before there is no utility model displacement generator device,
Traditional operational approach is, before carrying out on-the-spot test, first must carry out on-line debugging and systems modelling in test chamber, confirm
The precision of mensuration system and reliability；Behind scene, also need to secondary demarcate checking precision.Two sets used in above-mentioned Comparison Method
Displacement monitor itself there may exist measurement error, therefore obtained two measurement data are directly compared, only
The accuracy value in an approximate range can be obtained, and the certainty of measurement that above-mentioned displacement monitor can reach cannot be accurately judged that.
Meanwhile, in Practical Project, due to the existence of site obstructions, wire-drawing direction sometimes cannot be parallel to measuring point displacement and fix the position,
Make measuring point wire-drawing direction form a space angle with measuring point displacement direction, therefore the scene that also needs to determines its space angle, thus
Inevitably introduce new measurement error.So, therefore be badly in need of solving this technical barrier.
Prior art proposes a kind of normal bit shift generator and demarcates the method and apparatus that displacement transducer is sent out in wire drawing.Fig. 2 is
The structural representation of displacement generator of the prior art, as in figure 2 it is shown, normal bit shift generator is mainly by fixing bar 11, cunning
The dynamic composition such as screw rod 12 and double end swivel nut 13.Fixing bar is fixing with measuring point end to be connected, and fixing bar, sliding screw are respectively adopted a left side
Rotation, right-handed thread are connected with double end swivel nut, the pitch of positive two kinds of screw threads of left-hand thread, when sliding screw and fixing bar are via inside
Feather key contact after, twist double end swivel nut, sliding screw is relatively fixed bar and does not rotates, and only produces slip, and double end swivel nut
Often rotating 1 week, sliding screw moves 1 pitch difference.By measuring the weight end instrument when displacement generation end occurs different displacement
Table show value, carrys out calibration weight dropper terminal shift value and coefficient that measuring point actually occurs between shift value, and then revises measurement result.
Above-mentioned normal bit shift generator solves a difficult problem for pull spring method field calibration difficulty, but, find in practical engineering application,
Owing to this normal bit shift generator mainly drives sliding screw to be subjected to displacement by mechanical double-head swivel nut, if rotating cycle statistics mistake
By mistake or the anglec of rotation does not closes, will inevitably result in measurement error, also can not fully meet the high accuracy of determining displacement with
Reliability requirement.
Utility model content
In view of this, this utility model provides a kind of displacement generator, such that it is able to the displacement that simulation measuring point produces truly and by
The exact value of the displacement of this simulation is shown by display screen.
The technical solution of the utility model is specifically achieved in that
A kind of displacement generator, this displacement generator includes: lifting bolt, digital displacement sensing device, sliding screw, fixing
Screw rod and double end swivel nut；
One end of described digital displacement sensing device is fixing with described lifting bolt to be connected；Another of described digital displacement sensing device
Hold be connected fixing with described sliding screw；
It is provided with axially extending bore on described sliding screw, the outer wall of described sliding screw is provided with hole, location；
One end of described standing screw is provided with the extension of the axially extending bore that can stretch into described sliding screw；Set on described extension
Being equipped with chute, the other end of described standing screw is connected with being fixed by geodesic structure by mounting seat；
Described sliding screw and standing screw pass through two kinds respectively, and direction of rotation is contrary and the unequal screw thread of pitch connects with double end swivel nut
Connect；The extension of described standing screw inserts in the axially extending bore on described sliding screw, and location screw is inserted through hole, described location
Enter in described chute and fix with described sliding screw.
It is also preferred that the left described digital displacement sensing device includes: install cabin, digital displacement sensor and fixture；
The one end in described installation cabin offers the first installation through hole；Described first install through hole be internally provided with screw thread；
The end of the extension of described standing screw is provided with axial exploration hole；
Institute's displacement sensors is fixed in described installation cabin by described fixture, and the end of probe of institute's displacement sensors is from described
First installation through hole stretches out described installation cabin and inserts in the exploration hole on the extension of described standing screw；
The outer surface of one end that described sliding screw is connected with described installation cabin is provided with external screw thread, and described sliding screw is by described
External screw thread and the described first female thread installed in through hole are connected with described installation cabin.
It is also preferred that the left institute's displacement sensors includes: sensor and numeric display unit；
The end of probe of described sensor is installed through hole from described first and is stretched out described installation cabin and insert stretching out of described standing screw
In exploration hole in portion；Described sensor is for detecting the displacement between described sliding screw and described standing screw；
Described numeric display unit, the displacement detected for sensor described in numerical monitor.
It is also preferred that the left one end that described installation cabin is connected with described lifting bolt offers the second installation through hole；
Described lifting bolt is connected by the second installation through hole installing end cap and described installation cabin is fixing with described installation cabin.
It is also preferred that the left be provided with axially extending bore in described mounting seat, in described axially extending bore, it is provided with female thread；At the bottom of described installation
Seat is fixed on by installation stud and treats on geodesic structure；
Described standing screw is provided with external screw thread with the outer surface of one end that described mounting seat is connected.
It is also preferred that the left be provided with left hand thread on the outer surface connecting end with described double end swivel nut of described standing screw；
It is provided with right-handed thread on the outer surface connecting end with described double end swivel nut of described sliding screw；
Corresponding left hand thread and right-handed thread then it is respectively arranged with on the inwall at the two ends of described double end swivel nut.
It is also preferred that the left be provided with right-handed thread on the outer surface connecting end with described double end swivel nut of described standing screw；
It is provided with left hand thread on the outer surface connecting end with described double end swivel nut of described sliding screw；
Corresponding right-handed thread and left hand thread then it is respectively arranged with on the inwall at the two ends of described double end swivel nut.
It is also preferred that the left be carved with the evenly divided of n lattice on the circumference of described double end swivel nut one or both ends.
It is also preferred that the left described installation cabin includes: nacelle and hatchcover；
Described hatchcover is screwed in described nacelle.
The most visible, in the displacement generator in this utility model, owing to employing sliding screw, standing screw and double end spiral shell
Set, therefore can simulate the displacement that measuring point produces, and the week that can be rotated by double end swivel nut by rotating double end swivel nut truly
Number knows the value of this simulation displacement；It is additionally, since and also uses digital displacement sensing device, therefore can be by the displacement of this simulation
Exact value shown by display screen, overcome displacement generator device of the prior art can not the drawback of digital display displacement generating capacity,
Such that it is able to be greatly improved precision and the reliability of measurement, and survey crew is made can more convenient, directly to know this mould
Intend the exact value of displacement, decrease execute-in-place difficulty and debugging time.
Accompanying drawing explanation
Fig. 1 is the structural representation that pull spring method of the prior art measures system.
Fig. 2 is the structural representation of displacement generator of the prior art.
Fig. 3 is the structural representation of the displacement generator in this utility model embodiment.
Fig. 4 is the top view of the displacement generator in this utility model embodiment.
Fig. 5 is the A-A profile of the displacement generator in this utility model embodiment.
Fig. 6 is the structural representation of the digital displacement sensing device in this utility model embodiment.
Fig. 7 is the B-B profile of the digital displacement sensing device in this utility model embodiment.
Fig. 8 is the profile of the digital displacement sensing device in this utility model embodiment.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, develop simultaneously embodiment referring to the drawings,
This utility model is further described.
Present embodiments provide a kind of displacement generator.
Fig. 3 is the structural representation of the displacement generator in this utility model embodiment.Fig. 4 is this utility model embodiment
In the top view of displacement generator.Fig. 5 is the A-A profile of the displacement generator in this utility model embodiment.As
Shown in Fig. 3～5, the displacement generator in this utility model embodiment includes: lifting bolt 31, digital displacement sensing device
32, sliding screw 33, standing screw 34 and double end swivel nut 35；
One end of described digital displacement sensing device 32 is fixing with described lifting bolt 31 to be connected (such as, can by welding,
The fixed forms such as bolt, screw thread or lead screw are fixed)；The other end of described digital displacement sensing device 32 is with described
Sliding screw 33 is fixing connects (such as, can be fixed) by fixed forms such as bolt, screw thread or lead screw；
It is provided with axially extending bore on described sliding screw 33, the outer wall of described sliding screw 33 is provided with hole, location；
One end of described standing screw 34 is provided with the extension 341 of the axially extending bore that can stretch into described sliding screw 33；
Being provided with chute 342 on described extension 341, the other end of described standing screw 34 passes through mounting seat 36 with tested
Structure 30 is fixing to be connected；
Described sliding screw 33 and standing screw 34 be contrary by two kinds of direction of rotation respectively and the unequal screw thread of pitch (i.e.
Positive and negative button screw thread) it is connected with double end swivel nut 35；The extension 341 of described standing screw 34 inserts described sliding screw
In axially extending bore on 33, location screw 37 insert through hole, described location in described chute 342 and with described slip spiral shell
Bar 33 is fixed.
According to said structure, in the technical solution of the utility model, above-mentioned displacement generator is provided with digit order number
Move sensing device, the two ends of this digital displacement sensing device are connected with described sliding screw and lifting bolt respectively, described in hang
The other end of ring screw then can be connected with measuring point and/or bracing cable；And, described sliding screw and standing screw by just,
Left-hand thread screw thread is connected with double end swivel nut, and the pitch of two kinds of screw threads of positive and negative button；It addition, described location screw passes
The outer wall of described sliding screw inserts in the chute of described standing screw, and can move along described chute, therefore, works as rotation
During described double end swivel nut, described sliding screw will be relative to described standing screw generation translation, without rotating；And
And, double end swivel nut often rotates a circle, and the most described sliding screw will move 1 pitch difference relative to described standing screw.Institute
With, above-mentioned displacement generator can be arranged in structure to be detected；When detecting, this treats that geodesic structure is not required to
Produce displacement, only can need to simulate above-mentioned knot to be measured more truly by rotating the double end swivel nut in above-mentioned displacement generator
The displacement of structure, and the value of this simulation displacement can be known by all numbers that double end swivel nut rotates.And, now also by number
Word displacement sensing apparatus reads the exact value of this simulation displacement.Owing to digital displacement sensing device is for simulating the measurement of displacement
The most accurate, and the exact value of this simulation displacement can be shown by display screen, such that it is able to be greatly improved measurement
Precision and reliability, and make survey crew can more convenient, directly know the exact value of this simulation displacement.
It addition, the structural representation that Fig. 6 is the digital displacement sensing device in this utility model embodiment.Fig. 7 is this reality
B-B profile with the digital displacement sensing device in new embodiment.Fig. 8 is the numeral in this utility model embodiment
The profile of displacement sensing apparatus.
Therefore, as shown in Figure 6 to 8, it is also preferred that the left in specific embodiment of the utility model, described digital displacement passes
Induction device 32 may include that installation cabin 321, digital displacement sensor 322 and fixture 323；
Wherein, the one end in described installation cabin 321 offers the first installation through hole 41；Described first installs the interior of through hole 41
Portion is provided with screw thread；
The end of the extension 341 of described standing screw 34 is provided with axial exploration hole 343；
Described digital displacement sensor 322 is fixed in described installation cabin 321 by described fixture 323, and described numeral
The end of probe 324 of displacement transducer 322 is installed from described first and is stretched out described installation cabin 321 through hole 41 and insert described
In exploration hole 343 on the extension 341 of standing screw 34；
The outer surface of one end that described sliding screw 33 is connected with described installation cabin 321 is provided with external screw thread, described slip spiral shell
Bar 33 is connected with described installation cabin 321 by described external screw thread and the described first female thread installed in through hole 41.
It is also preferred that the left in specific embodiment of the utility model, described digital displacement sensor 322 can be by interior hexagonal
Screw 51 and spring washer are fixed in described installation cabin, and described digital displacement sensor 322 is by installing sleeve 52 He
Holding screw 53 is fixed on described fixture 323.
It is also preferred that the left in specific embodiment of the utility model, described digital displacement sensor 322 may include that sensing
Device 71 and numeric display unit 72；
The end of probe 324 of described sensor 71 is installed from described first and is stretched out described installation cabin 321 through hole 41 and insert
In exploration hole 343 on the extension 341 of described standing screw 34；Described sensor 71 is used for detecting described slip spiral shell
Displacement between bar 33 and described standing screw 34；
Described numeric display unit 72, the displacement detected for sensor described in numerical monitor 71.
It is also preferred that the left in specific embodiment of the utility model, described installation cabin 321 may include that nacelle 61 and hatchcover
62；Described hatchcover 62 is fixed in described nacelle 61 by screw 63.
It is also preferred that the left in specific embodiment of the utility model, described installation cabin 321 is connected with described lifting bolt 31
One end offers the second installation through hole 42；
Described lifting bolt 31 is by installing the second installation through hole 42 of end cap 311 and described installation cabin 321 and described peace
Stowage 321 is fixing to be connected.
It is also preferred that the left in specific embodiment of the utility model, described mounting seat 36 is provided with axially extending bore 361,
It is provided with female thread in described axially extending bore 361；Described mounting seat 36 is fixed on by installation stud 362 and treats geodesic structure
On 30；
Described standing screw 34 is provided with external screw thread with the outer surface of one end that described mounting seat 36 is connected.Therefore, institute
State standing screw 34 to be fixed by the female thread in the axially extending bore 361 of above-mentioned external screw thread and described mounting seat 36
Connect.
It is also preferred that the left in specific embodiment of the utility model, the connection end with described double end swivel nut of described standing screw
Outer surface on be provided with left hand thread, described sliding screw with described double end swivel nut connect end outer surface on arrange
There is right-handed thread, the inwall at the two ends of described double end swivel nut be then respectively arranged with corresponding left hand thread and right-handed thread,
So that standing screw and sliding screw can be connected with double end swivel nut by the screw thread risen respectively.Above two rotates
The pitch of screw thread (i.e. left hand thread and right-handed thread) in opposite direction is unequal, therefore there is pitch difference.
It is also preferred that the left in specific embodiment of the utility model, the connection end with described double end swivel nut of described standing screw
Outer surface on be provided with right-handed thread, described sliding screw with described double end swivel nut connect end outer surface on arrange
There is left hand thread, the inwall at the two ends of described double end swivel nut be then respectively arranged with corresponding right-handed thread and left hand thread,
So that standing screw and sliding screw can be connected with double end swivel nut by the screw thread risen respectively.
It addition, in the technical solution of the utility model, owing to double end swivel nut often rotates a circle, the most described sliding screw will
1 pitch difference is moved relative to described standing screw, it is therefore advantageous to, in specific embodiment of the utility model,
The evenly divided (not shown) of n lattice can be engraved on the circumference of described double end swivel nut one or both ends, the most every two
Spacing between individual scale represents the pitch difference of 1/n.Such as, if engraving the evenly divided of 100 lattice, then each two is carved
Spacing between degree represents the pitch difference of 1/100.
Additionally, in preferred embodiment of the present utility model, it is also possible on the outer surface of described sliding screw, arrange one
Scale (not shown), this scale is for estimating the rotation number of turns of double end swivel nut, the therefore scale spacing etc. of this scale
A pitch on sliding screw outer surface, this pitch is equal between sliding screw with double end swivel nut for the screw thread being connected
Pitch.This scale can be engraved on the outer surface of sliding screw, or is otherwise fixed to the appearance of sliding screw
On face.
It addition, in the technical solution of the utility model, other parts in addition to the sensors in described displacement generator
Material can select the material that the temperature line coefficient of expansion is little, sliding is good, such as, indium steel, 62 pyrite or steel.Aluminium
Then big because of the coefficient of expansion, should not use.
In summary, in the displacement generator in this utility model, owing to employing sliding screw, standing screw and double
Head swivel nut, therefore can simulate, by rotating double end swivel nut, the displacement that measuring point produces truly, and can pass through double end swivel nut
The all numbers rotated know the value of this simulation displacement；It is additionally, since and also uses digital displacement sensing device, therefore can be by
The exact value of the displacement of this simulation is shown by display screen, and overcoming displacement generator device of the prior art can not digital display
The drawback of displacement generating capacity, such that it is able to be greatly improved precision and the reliability of measurement, and makes survey crew permissible
More convenient, directly know the exact value of this simulation displacement, decrease execute-in-place difficulty and debugging time.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all in this reality
Within novel spirit and principle, any modification, equivalent substitution and improvement etc. done, should be included in this practicality new
Within the scope of type protection.
Claims (9)
1. a displacement generator, it is characterised in that this displacement generator includes: lifting bolt, digital displacement sensing device, sliding screw, standing screw and double end swivel nut；
One end of described digital displacement sensing device is fixing with described lifting bolt to be connected；The other end of described digital displacement sensing device is fixing with described sliding screw to be connected；
It is provided with axially extending bore on described sliding screw, the outer wall of described sliding screw is provided with hole, location；
One end of described standing screw is provided with the extension of the axially extending bore that can stretch into described sliding screw；Being provided with chute on described extension, the other end of described standing screw is connected with being fixed by geodesic structure by mounting seat；
Described sliding screw and standing screw pass through two kinds respectively, and direction of rotation is contrary and the unequal screw thread of pitch is connected with double end swivel nut；The extension of described standing screw inserts in the axially extending bore on described sliding screw, and location screw inserts in described chute through hole, described location and fixes with described sliding screw.
Displacement generator the most according to claim 1, it is characterised in that described digital displacement sensing device includes: install cabin, digital displacement sensor and fixture；
The one end in described installation cabin offers the first installation through hole；Described first install through hole be internally provided with screw thread；
The end of the extension of described standing screw is provided with axial exploration hole；
Institute's displacement sensors is fixed in described installation cabin by described fixture, and the end of probe of institute's displacement sensors is installed from described first and stretched out described installation cabin through hole and insert in the exploration hole on the extension of described standing screw；
The outer surface of one end that described sliding screw is connected with described installation cabin is provided with external screw thread, and described sliding screw is connected with described installation cabin by described external screw thread and the described first female thread installed in through hole.
Displacement generator the most according to claim 2, it is characterised in that institute's displacement sensors includes: sensor and numeric display unit；
The end of probe of described sensor is installed from described first and is stretched out described installation cabin through hole and insert in the exploration hole on the extension of described standing screw；Described sensor is for detecting the displacement between described sliding screw and described standing screw；
Described numeric display unit, the displacement detected for sensor described in numerical monitor.
Displacement generator the most according to claim 3, it is characterised in that:
One end that described installation cabin is connected with described lifting bolt offers the second installation through hole；
Described lifting bolt is connected by the second installation through hole installing end cap and described installation cabin is fixing with described installation cabin.
Displacement generator the most according to claim 4, it is characterised in that:
It is provided with axially extending bore in described mounting seat, in described axially extending bore, is provided with female thread；Described mounting seat is fixed on by installation stud and treats on geodesic structure；
Described standing screw is provided with external screw thread with the outer surface of one end that described mounting seat is connected.
Displacement generator the most according to claim 5, it is characterised in that:
It is provided with left hand thread on the outer surface connecting end with described double end swivel nut of described standing screw；
It is provided with right-handed thread on the outer surface connecting end with described double end swivel nut of described sliding screw；
Corresponding left hand thread and right-handed thread then it is respectively arranged with on the inwall at the two ends of described double end swivel nut.
Displacement generator the most according to claim 5, it is characterised in that:
It is provided with right-handed thread on the outer surface connecting end with described double end swivel nut of described standing screw；
It is provided with left hand thread on the outer surface connecting end with described double end swivel nut of described sliding screw；
Corresponding right-handed thread and left hand thread then it is respectively arranged with on the inwall at the two ends of described double end swivel nut.
Displacement generator the most according to claim 7, it is characterised in that:
The evenly divided of n lattice it is carved with on the circumference of described double end swivel nut one or both ends.
Displacement generator the most according to claim 2, it is characterised in that described installation cabin includes: nacelle and hatchcover；
Described hatchcover is screwed in described nacelle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521075707.5U CN205482705U (en) | 2015-12-22 | 2015-12-22 | Displacement generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521075707.5U CN205482705U (en) | 2015-12-22 | 2015-12-22 | Displacement generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205482705U true CN205482705U (en) | 2016-08-17 |
Family
ID=56660291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521075707.5U Withdrawn - After Issue CN205482705U (en) | 2015-12-22 | 2015-12-22 | Displacement generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205482705U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547217A (en) * | 2015-12-22 | 2016-05-04 | 中冶建筑研究总院有限公司 | Displacement generator |
| CN107976363A (en) * | 2017-11-27 | 2018-05-01 | 同济大学 | It is a kind of to measure the telescopic material handling device sensor device that inside soil body Light deformation is tested in geotechnological direct shear test |
-
2015
- 2015-12-22 CN CN201521075707.5U patent/CN205482705U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547217A (en) * | 2015-12-22 | 2016-05-04 | 中冶建筑研究总院有限公司 | Displacement generator |
| CN105547217B (en) * | 2015-12-22 | 2019-01-22 | 中冶建筑研究总院有限公司 | A kind of displacement generator |
| CN107976363A (en) * | 2017-11-27 | 2018-05-01 | 同济大学 | It is a kind of to measure the telescopic material handling device sensor device that inside soil body Light deformation is tested in geotechnological direct shear test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160817 Effective date of abandoning: 20190122 |