CN105758315A - Vertical displacement measurement device and calibration method therefore - Google Patents
Vertical displacement measurement device and calibration method therefore Download PDFInfo
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- CN105758315A CN105758315A CN201610119298.7A CN201610119298A CN105758315A CN 105758315 A CN105758315 A CN 105758315A CN 201610119298 A CN201610119298 A CN 201610119298A CN 105758315 A CN105758315 A CN 105758315A
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- cover plate
- vertical displacement
- measuring device
- displacement measuring
- inner sleeve
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N11/10—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material
- G01N11/12—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material by measuring rising or falling speed of the body; by measuring penetration of wedged gauges
Abstract
The invention relates to a vertical displacement measurement device and a calibration method therefore. The device is used for calibrating an automatic penetrometer, and comprises a control cabinet; an automatic lifting assembly which is connected with the control cabinet; a cover plate which is disposed at the upper end of the automatic lifting assembly, can support the automatic penetrometer, and can make vertical movement under the action of the control cabinet; and trigger switch supports which are relatively disposed at two sides of the upper end of the automatic lifting assembly, can limit the vertical movement of the cover plate and detects the vertical movement of the cover plate. The device can precisely judge the accuracy of the automatic penetrometer.
Description
Technical field
The present invention relates to equipment Alignment technical field, particularly relate to a kind of vertical displacement measuring device and calibration steps thereof.
Background technology
Asphalt Penetration is one of Colophonium primary quality measure, it is possible to clearly reflect the rheological property of Colophonium, and it indicates that the index of Colophonium soft or hard degree and denseness.Needle penetration is measured according to the measuring method of national Specification, i.e. with standard pin certain load, temperature and in the time degree of depth of direct puncture bitumen samples represent, generally in units of 0.1 millimeter.
Bitumen needle forcemeter is the key instrument measuring needle penetration, and it is particularly suited for the mensuration of the residue after bi tumenf orr oad, the evaporation of liquid petroleum Colophonium.
At present, the automatic bitumen needle forcemeter on market, its shift value adopts displacement meter to measure, simultaneously, moreover it is possible to display and record numerical value automatically.But, the accuracy that this automatic bitumen needle forcemeter measures is still needed calibration.Thus, it is desirable to design a kind of vertical displacement measuring device calibrating automatic penetrometer, it is calibrated with the accuracy to automatic bitumen needle forcemeter.
Summary of the invention
For the problems referred to above, according to the first aspect of the invention, it is proposed that a kind of vertical displacement measuring device, described vertical displacement measuring device is used for calibrating automatic penetrometer, including: switch board；The automatic lifting assembly being connected with described switch board；Being arranged on the upper end of described automatic lifting assembly and can carry the cover plate of described automatic penetrometer, described cover plate can vertically move under the effect of described switch board；It is oppositely arranged on the both sides of the upper end of described automatic lifting assembly and described cover plate can be limited in longitudinal motion and detects the described cover plate triggering switch bracket in longitudinal displacement.
In one embodiment, described automatic lifting assembly includes outer sleeve and is positioned at described outer sleeve and can carry out the inner sleeve of lengthwise movement by relative described outer sleeve, is configured with annular space between described outer sleeve and described inner sleeve.
In one embodiment, described cover plate be arranged on the upper port of described inner sleeve with by the internal structure of described inner sleeve for airtight annular space.
In one embodiment, described triggering switch bracket is oppositely arranged on the both sides of the upper end of described outer sleeve.
In one embodiment, described triggering switch bracket includes vertical ennation and the horizontal expansion body being connected with the elongated end of described vertical ennation and extending towards the central axial direction of described inner sleeve.
In one embodiment, the medial wall of described vertical ennation is configured with the vertical displacement detection sensor of the length travel that can detect described cover plate.
In one embodiment, it is provided with at the elongated end of described horizontal expansion body and can limit the limit component that described cover plate continues up.
In one embodiment, upper surface at described cover plate is provided with contact pressure sensor, after the lower surface of the pin connecting rod in described automatic penetrometer touches described contact pressure sensor, described contact pressure sensor will record current force value, and described force value passes to signals collecting parts in described switch board as electronic signals.
In one embodiment, described automatic lifting assembly also includes being arranged on described inner sleeve upper port and the balancing weight that described cover plate moves downward can be accelerated.
In one embodiment, described switch board includes the control parts being electrically connected to each other, described signals collecting parts and timing piece, wherein, described signals collecting parts electrically connect with described contact pressure sensor, and described control parts detect sensor with described vertical displacement and electrically connect.
In one embodiment, described control parts are connected with described annular space by pipeline, by described control parts to insufflation gas in described annular space to change the gas pressure in described annular space, thus driving described inner sleeve to carry out corresponding lengthwise movement.
In one embodiment, the lateral wall of the described annular space of the correspondence of described outer sleeve is configured with the adjusting pressuring knob of the gas pressure that can control in described annular space.
Second invention according to the present invention, propose a kind of method using vertical displacement measuring device that automatic penetrometer is calibrated, including: open the on and off switch in vertical displacement measuring device, to start the user interface in switch board, simultaneously, adjust and fixing pin connecting rod is in longitudinal position, so that the terminal surface of described pin connecting rod is towards cover plate；By clicking the startup button controlling parts in user interface, to inject gas in annular space, so that described cover plate rises to precalculated position；After slowly the described pin connecting rod of adjustment touches the contact pressure sensor on described cover plate to it downwards, lock described pin connecting rod；Discharge described pin connecting rod to move downward to oppress described cover plate, fall moment at described cover plate, the initial signal of timing is sent to timing piece by described contact pressure sensor, simultaneously, detect sensor by vertical displacement and send the initial signal of current displacement to signals collecting parts, and record the current shift value L of described cover plate1；When described timing piece timing reaches the scheduled time, detect sensor by described vertical displacement and send timing end signal to signals collecting parts, and record the current shift value L of described cover plate2；Calculate L1With L2Difference be L；The displacement of the described L described pin connecting rod measured with the displacement measurement parts in described automatic penetrometer is compared.
In one embodiment, described L is described cover plate shift value in the given time.
In one embodiment, described method also includes repeatedly calculating described L in the hope of meansigma methods.
Compared with prior art, according to the application, the advantage that this vertical displacement measuring device has the accuracy that can accurately judge that out automatic penetrometer.
It addition, the setting of this cover plate so that the internal structure of this inner sleeve is airtight annular space.So, this inner sleeve is just made to have lighter weight, thus facilitating this inner sleeve successfully to rise or fall.Thus efficiently avoid the drawback causing rising smoothly owing to this inner sleeve is overweight.
This vertical displacement detection sensor is arranged, it is possible to the moment detects the misalignment of cover plate accurately, flexibly.
When horizontal level residing for this cover plate is increased over horizontal expansion body, then can be screwed down above-mentioned limit component, in the process, along with moving down of limit component, just holddown plate can be carried out by the pressure cap in limit component, thus realizing moving down of cover plate, so that this cover plate is in suitable position in the vertical.
Accompanying drawing explanation
Based on embodiment reference accompanying drawing, the present invention will be described in more detail hereinafter.In the drawings:
Fig. 1 is the overall structure schematic diagram of the vertical displacement measuring device of embodiments herein.
Fig. 2 is the first axle side structure schematic diagram of the automatic lifting assembly of the vertical displacement measuring device of embodiments herein.
Fig. 3 is the second axle side structure schematic diagram of the automatic lifting assembly of the vertical displacement measuring device of embodiments herein.
Fig. 4 is the overall structure schematic diagram of automatic penetrometer.
Fig. 5 is the vertical displacement measuring device the using the application steps flow chart schematic diagram to the method that automatic penetrometer is calibrated.
In the accompanying drawings, identical parts use identical accompanying drawing labelling.Accompanying drawing is not according to actual scaling.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 4, wherein, Fig. 1 show schematically show this vertical displacement measuring device 100 and includes switch board, automatic lifting assembly 2, cover plate 3 and trigger switch bracket 4.
The vertical displacement measuring device 100 of the application is mainly used in calibrating the accuracy of automatic penetrometer 200.
This switch board is mainly used in controlling the elevating function of the associated components in automatic lifting assembly 2.
Automatic lifting assembly 2 is connected with switch board.Such as, can exist electrically and mechanically simultaneously.
Cover plate 3 is arranged on the upper end of automatic lifting assembly 2 and can carry automatic penetrometer 200, and this cover plate 3 can vertically move under the effect of switch board.That is, by the control of this switch board, the inner sleeve 22 in automatic lifting assembly 2 just can be made to carry out corresponding elevating movement, thus driving this cover plate 3 to be also carried out corresponding elevating movement.
In a specific embodiment, the shape of this cover plate 3 should with the mating shapes of the upper port of inner sleeve 22.Such as, can be circular, oval, square or rectangle etc..
This triggering switch bracket 4 is oppositely arranged on the both sides of the upper end of automatic lifting assembly 2 and can limit cover plate 3 at longitudinal motion and detection cover plate 3 in longitudinal displacement.As can be seen here, the shift value of the pin connecting rod 201 measured by displacement measurement parts 203 in longitudinal shift value with automatic penetrometer 200 of the cover plate 3 that detected by this triggering switch bracket 4 is compared, and just can accurately determine out the accuracy of the measurement of this automatic penetrometer 200.
As shown in Figures 2 and 3, this automatic lifting assembly 2 includes outer sleeve 21 and is positioned at outer sleeve 21 and can carry out the inner sleeve 22 of lengthwise movement by relative outer sleeve 21, is configured with annular space 23 between outer sleeve 21 and inner sleeve 22.Wherein, the profile of this outer sleeve 21 and inner sleeve 22 is all substantially in a cylindrical shape.
This cover plate 3 be arranged on the upper port 221 of inner sleeve 22 with by the internal structure of inner sleeve 22 for airtight annular space 31.Specifically, this cover plate 3 can be fastened on the upper port 221 of inner sleeve 22 by the securing member such as bolt or screw, or can be fixed on the upper port 221 of this inner sleeve 22 by the mode welded.The setting of this cover plate 3 so that the internal structure of this inner sleeve 22 is airtight annular space 31.So, this inner sleeve 22 is just made to have lighter weight, thus facilitating this inner sleeve 22 successfully to rise or fall.Further, efficiently avoid due to the overweight drawback causing rising smoothly of this inner sleeve 22.
As shown in Figure 1, Figure 2 and Figure 3, this triggering switch bracket 4 is oppositely arranged on the both sides of the upper end 211 of outer sleeve 21.Specifically, this triggering switch bracket 4 can be fastened on the upper end 211 of this outer sleeve 21 by bolt or screw, thus greatly increasing the fastness of this triggering switch bracket 4 location.Meanwhile, installation and the dismounting of this triggering switch bracket 4 also it are very easy to.
As in figure 2 it is shown, this triggering switch bracket 4 includes vertical ennation 41, and it is connected with the elongated end 411 of this vertical ennation 41, and the horizontal expansion body 42 that can extend towards the central axial direction of inner sleeve 22.Wherein, this vertical ennation 41 can be vertical gripper shoe or vertical bracing frame, and this horizontal expansion body 42 can be horizontal plate or horizontal stand.The mode that this horizontal expansion body 42 can pass through to weld with the elongated end 411 of vertical ennation 41 is fixed together.
The medial wall 412 of vertical ennation 41 is configured with the vertical displacement detection sensor 413 of the length travel that can detect cover plate 3.That is, this vertical displacement detection sensor 413 can pass through photoinduction signal moment detection cover plate 3 misalignment in the vertical.Meanwhile, the cover plate 3 that this vertical displacement detection sensor 413 can be detected passes to the signals collecting parts 11 as described below in switch board as electronic signals at longitudinal shift value and controls parts 12.As can be seen here, this vertical displacement detection sensor 413 is arranged, it is possible to the moment detects the misalignment of cover plate 3 accurately, flexibly.
The limit component 422 that cover plate 3 continues up can be limited as in figure 2 it is shown, be provided with at the elongated end 421 of horizontal expansion body 42.It follows that for guaranteeing that this limit component 422 can play good position-limiting action, it should make this horizontal expansion body 42 moment keep being in level.
This limit component 422 can be stop screw, limiting rivet or the miscellaneous part with limit function, and it can be fixed on the elongated end 421 of horizontal expansion body 42 by the mode of detachable connection.When this cover plate 3 is increased over the horizontal level residing for horizontal expansion body 42, then can be screwed down above-mentioned limit component 422, in the process, along with moving down of limit component 422, just holddown plate 3 can be carried out by the pressure cap in limit component 422, thus realizing moving down of cover plate 3, so that this cover plate 3 is in suitable position in the vertical.
As depicted in figs. 1 and 2, the upper surface 32 of cover plate 3 is provided with contact pressure sensor 321, after the lower surface 202 of the pin connecting rod 201 in automatic penetrometer 200 touches contact pressure sensor 321, this contact pressure sensor 321 will record current force value, and this force value passes to signals collecting parts 11 in switch board as electronic signals.So, these signals collecting parts 11 just can detect the size of the pressure that pin connecting rod 201 is applied on this cover plate 3 more conveniently.
As shown in Figure 4, this automatic lifting assembly 2 also includes being arranged on inner sleeve 22 the upper port 221 and balancing weight 5 that cover plate 3 moves downward can be accelerated.This counterweight pouring weight 5 can be fastened on upper port 221 place of this inner sleeve 22 by the securing member such as screw or bolt.Owing to this balancing weight 5 has a certain size weight, this balancing weight 5 is arranged on upper port 221 place of inner sleeve 22, to accelerate the whereabouts of this inner sleeve 22, thus significantly shortening the fall time of this inner sleeve 22.
As it is shown in figure 1, this switch board includes the control parts 12, signals collecting parts 11 and the timing piece 13 that are electrically connected to each other, wherein, signals collecting parts 11 electrically connect with contact pressure sensor 321, control parts 12 and electrically connect with vertical displacement detection sensor 413.So, the pin connecting rod 201 detected just can be applied to the force value on cover plate 3 and pass to signals collecting parts 11 as electronic signals by this contact pressure sensor 321.The cover plate 3 that this vertical displacement detection sensor 413 can be detected passes to signals collecting parts 11 as electronic signals at longitudinal shift value and controls parts 12.Represent cover plate 3 after the signal of telecommunication of longitudinal shift value when these control parts 12 receive, just can control cover plate 3 comparatively neatly at longitudinal misalignment.
As it is shown in figure 1, these control parts 12 are connected with annular space 23 by pipeline 6, by controlling parts 12 to insufflation gas in annular space 23 to change the gas pressure in annular space 23, thus driving inner sleeve 2 to carry out corresponding lengthwise movement.Specifically, when needs promote this inner sleeve 22, these control parts 12 will pass through pipeline 6 and inject gas in this annular space 23.When, after the self gravitation more than this inner sleeve 22 of the gas pressure in this annular space 23, this inner sleeve 22 can gradually rise under the effect of gas pressure.Wherein, the big I of the gas volume being filled with in this annular space 23 is determined by this inner sleeve 22 lifting height in the vertical.Easy to understand, when this inner sleeve 22 needs to decline, only the pressure to inner sleeve 22 need to be acted on more than the gas pressure in annular space 23.If it addition, want so that this inner sleeve 22 can speed up decline, then only need to increase and act on to the pressure of this cover plate 3.Such as, weight or the increase miscellaneous part that can increase this pin connecting rod 201 act on to the pressure of this cover plate 3 with increase.
As it is shown on figure 3, be configured with the adjusting pressuring knob 7 of the gas pressure that can control in annular space 23 on the lateral wall 212 of the corresponding annular space 23 of outer sleeve 21.By this adjusting pressuring knob 7 of turn, the change to the air pressure in this annular space 23 just can be realized.That is, by being rotated towards the direction of big aperture gradually by this adjusting pressuring knob 7, the gas pressure in this annular space 23 just can be made to be gradually increased.Otherwise, during by being rotated towards the direction of small guide vane gradually by this adjusting pressuring knob 7, the gas pressure in this annular space 23 just can be made to be gradually reduced.As can be seen here, the setting of this adjusting pressuring knob 7, it is possible to according to inner sleeve 22 in longitudinal position, adjust the aperture of this adjusting pressuring knob 7 at any time, thus the size of the gas pressure controlled comparatively neatly in annular space 23.
According to first embodiment of the invention, the specific works process of this vertical displacement measuring device 100 is, open the on and off switch (not shown) in vertical displacement measuring device 100, to start the user interface in switch board, simultaneously, adjust and fixing pin connecting rod 201 is in longitudinal position, so that the terminal surface 202 of pin connecting rod 201 is towards cover plate 3.
Click the startup button (not shown) controlling parts 12 in above-mentioned user interface, under the effect of these control parts 12, in annular space 23, inject gas.When after self gravitation more than inner sleeve 22 of the pressure of the gas in this annular space 23, cover plate 3 just can be made to be gradually increasing until reaching precalculated position.
After this cover plate 3 rises to precalculated position, by limit component 422, this cover plate 3 is locked, so that this cover plate 3 is in static state.Wherein, this precalculated position can position for setting according to actual needs before calibration.
After slowly metering needle connecting rod 201 touches the contact pressure sensor 321 on lid 3 to it downwards, lock this pin connecting rod 201, so that this pin connecting rod 201 is also at resting state.
Discharge this pin connecting rod 201, oppress cover plate 3 by the self gravitation of this pin connecting rod 201 to move downward, in the moment that cover plate 3 falls, the initial signal of timing is sent to timing piece 13 by contact pressure sensor 321, simultaneously, detect sensor 413 by vertical displacement and send the initial signal of current displacement to signals collecting parts 11, and record the current shift value L of cover plate 31。
When timing piece 13 timing reaches the scheduled time, detect sensor 413 by vertical displacement and send timing end signal to signals collecting parts 11, and record the current shift value L of cover plate 32。
Calculate L1With L2Difference be L.
The displacement of the L pin connecting rod 201 measured with the displacement measurement parts 203 in automatic penetrometer 200 is compared.If the displacement of the pin connecting rod 201 that displacement measurement parts 203 are measured is less than or greater than this L-value, then illustrate that automatic penetrometer 200 can not determine standard pin (not shown) exactly in certain load, temperature and the degree of depth of direct puncture bitumen samples in the time.Thus can be determined that the measurement of this automatic penetrometer 200 exists inaccurate problem.On the contrary, if the displacement of the pin connecting rod 201 of displacement measurement parts 203 measurement is equal to this L-value, then illustrate that the measurement of this automatic penetrometer 200 is comparatively accurate.
Additionally, vertical displacement measuring device 100 for guaranteeing the application can judge that whether the measurement of automatic penetrometer 200 is accurate comparatively accurately, can repeatedly record L, meansigma methods in the hope of L, thus the displacement of the pin connecting rod 201 measured by the displacement measurement parts 203 in automatic penetrometer 200 and this meansigma methods compare, thus judging the height of the accuracy of automatic penetrometer 200 and low.
In sum, the advantage that this vertical displacement measuring device 100 has the accuracy that can accurately judge that out automatic penetrometer 200.
It addition, the setting of this cover plate 3 so that the internal structure of this inner sleeve 22 is airtight annular space 31.So, this inner sleeve 22 is just made to have lighter weight, thus facilitating this inner sleeve 22 successfully to rise or fall.Thus efficiently avoid due to the overweight drawback causing rising smoothly of this inner sleeve 22.
This vertical displacement detection sensor 413 is arranged, it is possible to the moment detects the misalignment of cover plate 3 accurately, flexibly.
When this cover plate 3 is increased over the horizontal level residing for horizontal expansion body 42, then can be screwed down above-mentioned limit component 422, in the process, along with moving down of limit component 422, just holddown plate 3 can be carried out by the pressure cap in limit component 422, thus realizing moving down of cover plate 3, so that this cover plate 3 is in suitable position in the vertical.
As it is shown in figure 5, according to the present invention, use the method that automatic penetrometer 200 is calibrated by the vertical displacement measuring device 100 of the application to include:
Step S410, open the on and off switch (not shown) in vertical displacement measuring device 100, to start the user interface in switch board, simultaneously, adjust and fixing pin connecting rod 201 is in longitudinal position, so that the terminal surface 202 of pin connecting rod 201 is towards cover plate 3.
Step S420, by clicking the startup button (not shown) controlling parts 12 in above-mentioned user interface, under the effect of these control parts 12, injects gas in annular space 23.When after self gravitation more than inner sleeve 22 of the pressure of the gas in this annular space 23, cover plate 3 just can be made to be gradually increasing until reaching precalculated position.After this cover plate 3 rises to precalculated position, by limit component 422, this cover plate 3 is locked, so that this cover plate 3 is in static state.Wherein, this precalculated position can position for setting according to actual needs before calibration.
Step S430, slowly downward metering needle connecting rod 201, after touching the contact pressure sensor 321 on lid 3 to it, locks this pin connecting rod 201, so that this pin connecting rod 201 is also at resting state.
Step S440, discharge this pin connecting rod 201, oppress cover plate 3 by the self gravitation of this pin connecting rod 201 to move downward, in the moment that cover plate 3 falls, the initial signal of timing is sent to timing piece 13 by contact pressure sensor 321, meanwhile, detect sensor 413 by vertical displacement and send the initial signal of current displacement to signals collecting parts 11, and record the current shift value L of cover plate 31。
Step S450, when timing piece 13 timing reaches the scheduled time, detects sensor 413 by vertical displacement and sends timing end signal to signals collecting parts 11, and record the current shift value L of cover plate 32。
Step S460, calculates L1With L2Difference be L.
Step S470, compares the displacement of the L pin connecting rod 201 measured with the displacement measurement parts 203 in automatic penetrometer 200.If the displacement of the pin connecting rod 201 that displacement measurement parts 203 are measured is less than or greater than this L-value, then illustrate that automatic penetrometer 200 can not determine standard pin (not shown) exactly in certain load, temperature and the degree of depth of direct puncture bitumen samples in the time.Thus can be determined that the measurement of this automatic penetrometer 200 exists inaccurate problem.On the contrary, if the displacement of the pin connecting rod 201 of displacement measurement parts 203 measurement is equal to this L-value, then illustrate that the measurement of this automatic penetrometer 200 is comparatively accurate.
Additionally, vertical displacement measuring device 100 for guaranteeing the application can judge that whether the measurement of automatic penetrometer 200 is accurate comparatively accurately, can repeatedly record L, meansigma methods in the hope of L, thus the displacement of the pin connecting rod 201 measured by the displacement measurement parts 203 in automatic penetrometer 200 and this meansigma methods compare, thus judging the height of the accuracy of automatic penetrometer 200 and low.
This L is cover plate 3 shift value in the given time.Wherein, this scheduled time is the time set in advance.This scheduled time can according to the actual needs, reasonably set.
Automatic penetrometer 200 can be verified by vertical displacement measuring device 100 for ensureing the application exactly, then need repeatedly to calculate L in the hope of meansigma methods.As can be seen here, the present processes has the advantage that calibration is accurate and easy to operate.
Although by reference to preferred embodiment, invention has been described, but without departing from the scope of the invention, it is possible to it is carried out various improvement and parts therein can be replaced with equivalent.Especially, as long as being absent from structural hazard, the every technical characteristic being previously mentioned in each embodiment all can combine in any way.The invention is not limited in the specific embodiment disclosed in literary composition, but include all technical schemes falling in scope of the claims.
Claims (15)
1. a vertical displacement measuring device, described vertical displacement measuring device is used for calibrating automatic penetrometer, including:
Switch board；
The automatic lifting assembly being connected with described switch board；
Being arranged on the upper end of described automatic lifting assembly and can carry the cover plate of described automatic penetrometer, described cover plate can vertically move under the effect of described switch board；
It is oppositely arranged on the both sides of the upper end of described automatic lifting assembly and described cover plate can be limited in longitudinal motion and detects the described cover plate triggering switch bracket in longitudinal displacement.
2. vertical displacement measuring device according to claim 1, it is characterized in that, described automatic lifting assembly includes outer sleeve and is positioned at described outer sleeve and can carry out the inner sleeve of lengthwise movement by relative described outer sleeve, is configured with annular space between described outer sleeve and described inner sleeve.
3. vertical displacement measuring device according to claim 2, it is characterised in that described cover plate be arranged on the upper port of described inner sleeve with by the internal structure of described inner sleeve for airtight annular space.
4. vertical displacement measuring device according to claim 2, it is characterised in that described triggering switch bracket is oppositely arranged on the both sides of the upper end of described outer sleeve.
5. vertical displacement measuring device according to claim 4, it is characterised in that described triggering switch bracket includes vertical ennation and the horizontal expansion body being connected with the elongated end of described vertical ennation and extending towards the central axial direction of described inner sleeve.
6. vertical displacement measuring device according to claim 5, it is characterised in that be configured with the vertical displacement detection sensor of the length travel that can detect described cover plate on the medial wall of described vertical ennation.
7. vertical displacement measuring device according to claim 5, it is characterised in that the elongated end at described horizontal expansion body is provided with and can limit the limit component that described cover plate continues up.
8. vertical displacement measuring device according to claim 6, it is characterized in that, upper surface at described cover plate is provided with contact pressure sensor, after the lower surface of the pin connecting rod in described automatic penetrometer touches described contact pressure sensor, described contact pressure sensor will record current force value, and described force value passes to signals collecting parts in described switch board as electronic signals.
9. vertical displacement measuring device according to claim 2, it is characterised in that upper port that described automatic lifting assembly also includes being arranged on described inner sleeve and the balancing weight that described cover plate moves downward can be accelerated.
10. vertical displacement measuring device according to claim 8, it is characterized in that, described switch board includes the control parts being electrically connected to each other, described signals collecting parts and timing piece, wherein, described signals collecting parts electrically connect with described contact pressure sensor, and described control parts detect sensor with described vertical displacement and electrically connect.
11. vertical displacement measuring device according to claim 10, it is characterized in that, described control parts are connected with described annular space by pipeline, by described control parts to insufflation gas in described annular space to change the gas pressure in described annular space, thus driving described inner sleeve to carry out corresponding lengthwise movement.
12. vertical displacement measuring device according to claim 11, it is characterised in that be configured with the adjusting pressuring knob of the gas pressure that can control in described annular space on the lateral wall of the described annular space of correspondence of described outer sleeve.
13. use the method that the vertical displacement measuring device according to any one of the claims 1 to 12 is calibrated, including:
Open the on and off switch in vertical displacement measuring device, to start the user interface in switch board, meanwhile, adjust and fixing pin connecting rod is in longitudinal position, so that the terminal surface of described pin connecting rod is towards cover plate；
By clicking the startup button controlling parts in user interface, to inject gas in annular space, so that described cover plate rises to precalculated position；
After slowly the described pin connecting rod of adjustment touches the contact pressure sensor on described cover plate to it downwards, lock described pin connecting rod；
Discharge described pin connecting rod to move downward to oppress described cover plate, fall moment at described cover plate, the initial signal of timing is sent to timing piece by described contact pressure sensor, simultaneously, detect sensor by vertical displacement and send the initial signal of current displacement to signals collecting parts, and record the current shift value L of described cover plate1；
When described timing piece timing reaches the scheduled time, detect sensor by described vertical displacement and send timing end signal to signals collecting parts, and record the current shift value L of described cover plate2；
Calculate L1With L2Difference be L；
The displacement of the described L described pin connecting rod measured with the displacement measurement parts in described automatic penetrometer is compared.
14. method according to claim 13, it is characterised in that described L is described cover plate shift value in the given time.
15. method according to claim 13, it is characterised in that described method also includes repeatedly calculating described L in the hope of meansigma methods.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106197518A (en) * | 2016-08-29 | 2016-12-07 | 交通运输部公路科学研究所 | A kind of displacement and traveling time synchronous calibration method and device |
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| CN105758315B (en) | 2018-05-18 |
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