CN109632534A - A kind of electronic hammer-falling deflectometer of trailer-type - Google Patents
A kind of electronic hammer-falling deflectometer of trailer-type Download PDFInfo
- Publication number
- CN109632534A CN109632534A CN201811559644.9A CN201811559644A CN109632534A CN 109632534 A CN109632534 A CN 109632534A CN 201811559644 A CN201811559644 A CN 201811559644A CN 109632534 A CN109632534 A CN 109632534A
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- Prior art keywords
- trailer
- hammer
- deflectometer
- sensor
- electromagnet
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/317—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated by electromagnetic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Electromagnetism (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention provides a kind of electronic hammer-falling deflectometer of trailer-type, including trailer, the benkelman beams deflectometer being arranged on trailer and the host computer for controlling benkelman beams deflectometer, benkelman beams deflectometer includes outer frame body, and the loading device inside outer frame body, the bogey below setting loading device and the measuring device for being connected to bogey side are set, loading device includes electromagnet, is connected to dropping hammer below electromagnet；Bogey includes the transition plates that lower section of dropping hammer is arranged in, and pressure sensor is arranged below transition plates, is connected with bearing frame below pressure sensor, bearing frame bottom is provided with loading plate, is provided with displacement sensor on loading plate.The device of invention uses electromagnet structure, solves existing fluid pressure type benkelman beams deflectometer and is easy oil leak, permeability and the big disadvantage of work noise.
Description
Technical field
The present invention relates to benkelman beams deflectometer field more particularly to a kind of electronic hammer-falling deflectometers of trailer-type.
Background technique
In the latest 20 years, non-destuctive technology in road engineering research and development is at home and abroad by increasingly extensive attention.Flexure
As most important pavement structural strength evaluation index, detection device and analytical technology be have developed rapidly.From nineteen fifty-three invention beam
Since formula benkelman beams deflectometer, pavement deflection detection device develops to the drop hammer type flexure that simulated driving load acts on from static(al) benkelman beams deflectometer
Instrument develops to the test of road pavement multiple spot flexure from single-point maximum deflection test, and carries out road surface according to multiple spot deflection data
The inverse of each structure sheaf elasticity modulus is analyzed, and provides foundation for road surface structare layer design and evaluation.From the 80's of last century with
Come, drop hammer deflection meter has obtained increasingly extensive as a kind of subgrade and pavement flexure non-destructive testing and valuator device at home and abroad
Application.
Multiple spot drop hammer deflection meter is while the impact force and maximum flexure for testing loading plate center, from loading plate
The heart starts, and one group of deflection sensor of laying spaced apart along the longitudinal 0~250mm of road measures within the scope of this
Multiple spot flexure, i.e. deflection basin data.Multiple spot drop hammer deflection meter sensor beam lifting device uses hydraulic dress in the prior art
Realization is set, bogey is promoted by hydraulic cylinder, sensor beam one end is driven to be promoted, the other end passes through hoist engine and wirerope
It is promoted.
The promotion dropped hammer in loading device and release are all made of hydraulic device realization in the prior art, by loading plate
Two sides respectively place a hydraulic cylinder or place a hydraulic cylinder at center of dropping hammer, and jack up to drop hammer by hydraulic cylinder and realize that drops hammer mentions
Rise, when hydraulic stem retract oil cylinder when, drop hammer with can freely drop to ground face contact.Exist in this way and is easy leakage
Oil, the disadvantages of permeability and work noise are big.In order to overcome these disadvantages.
Summary of the invention
It is asked in view of this, being easy oil leak, permeability and the big technology of work noise to solve existing fluid pressure type benkelman beams deflectometer
Topic, the present invention provide a kind of electronic hammer-falling deflectometer of trailer-type.
The technical scheme of the present invention is realized as follows:
A kind of electronic hammer-falling deflectometer of trailer-type, including trailer, the benkelman beams deflectometer being arranged on the trailer and the control flexure
The host computer of instrument, the benkelman beams deflectometer include outer frame body, and loading device, the setting load dress inside outer frame body is arranged in
It sets the bogey of lower section and is connected to the measuring device of the bogey side, the loading device includes electromagnet, connects
Connect dropping hammer below the electromagnet；The bogey includes the transition plates that the lower section of dropping hammer is arranged in, the transition
Pressure sensor is set below plate, is connected with bearing frame below the pressure sensor, the bearing frame bottom is provided with
Loading plate is provided with displacement sensor on the loading plate.
Preferably, the transition plates upper surface is fixed with buffer substrate tablet, and the buffer substrate tablet setting is dropped hammer and the mistake described
Between cab apron.
Preferably, the first electric pushrod is additionally provided with inside the outer frame body, the output shaft of first electric pushrod passes through steel
Cord is connect with the transition plates.
Preferably, the electromagnet is connected using hoisting mechanism, and the hoisting mechanism includes setting topmost for solid
Crossbeam, the second electric pushrod for pushing the crossbeam to move up and down of the fixed electromagnet.
It preferably, further include guiding device, the guiding device includes two guide sleeves for being separately positioned on crossbeam both ends, with
And it is arranged in two guide posts of two guide sleeves.
Preferably, the measuring device includes crossbearer and setting multiple deflection sensors, the cross on the crossbearer
Frame is connected to the side of the bearing frame.
Preferably, the deflection sensor includes sensor main body, sensor upper plate, pinboard, probe and bottom plate, described
Probe is fixed on the lower end of the sensor main body by the pinboard, and the sensor upper plate is fixed on by sunk screw
The upper end of the sensor main body, the bottom plate are connect by four springs with the sensor upper plate, and the bottom plate is provided with logical
Hole, the probe pass through the through-hole.
The utility model has the advantages that
The present invention electromagnet and is dropped hammer by setting, when drop hammer be adsorbed on the electromagnet after, the carrying dropped hammer apart from lower section fills
Certain distance is set, the electric power of electromagnet is disconnected, drops hammer and falls the impact force certain to bogey, by bogey to ground
Pressure and measuring device measurement, calculate the integral, flexible modulus on tested road surface；The device uses electromagnet structure, solution
Certainly existing fluid pressure type benkelman beams deflectometer is easy oil leak, permeability and the big disadvantage of work noise.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the electronic hammer-falling deflectometer of trailer-type of the present invention；
Fig. 2 is the structural schematic diagram of deflection sensor in the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Such as Fig. 1-2, the embodiment of the present invention proposes a kind of electronic hammer-falling deflectometer of trailer-type, including trailer 1, setting are dragging
The host computer 2 of benkelman beams deflectometer and control benkelman beams deflectometer on vehicle 1, benkelman beams deflectometer includes outer frame body, and adding inside outer frame body is arranged in
Carry the bogey 4 for setting 3,3 lower section of setting loading device and the measuring device 5 for being connected to 4 side of bogey.
Loading device 3 include electromagnet 6, be connected to the lower section of electromagnet 6 drop hammer 7；Bogey 4 includes that setting is being dropped hammer
Pressure sensor 9 is arranged below transition plates 8, is connected with bearing frame 10 below pressure sensor 9, holds for the transition plates 8 of 7 lower sections
It carries 10 bottom of frame and is provided with loading plate 11, displacement sensor 12 is provided on loading plate 11.Is additionally provided with inside outer frame body
The output shaft of one electric pushrod 13, the first electric pushrod 13 is connect by wirerope 14 with transition plates 8.Electromagnet 6 is using promotion
Mechanism connection, hoisting mechanism include being arranged in topmost for the crossbeam 15 of fixed electromagnet 6, for pushing about 15 crossbeam to transport
The second dynamic electric pushrod 16.It further include guiding device, guiding device includes two guide sleeves for being separately positioned on 15 both ends of crossbeam
17, and it is arranged in two guide posts 18 of two guide sleeves 17.Firstly, carrying is filled by wirerope 14 by the first electric pushrod 13
4 are set smoothly to be put on ground.Second electric pushrod 16 drives crossbeam 15 to decline, and until the electromagnet 6 on crossbeam 15 and drops hammer 7
It completely attaches to.Electromagnet 6 is given to be powered on, dropping hammer 7 is attracted on electromagnet 6.Second electric pushrod 16 of two sides is by 15 He of crossbeam
7 are dropped hammer together along guiding device top to fixed height.Electromagnet 6 powers off, and drop hammer 7 disengaging electromagnet 6, freely falls to along guide rail
Bogey 4.After being measured, the first electric pushrod 13 passes through wirerope 14 for 4 lift-off ground of bogey.It is electronic to propose hammer skill
Art overcomes fluid pressure type completely and mentions the drawbacks of hammer is easy oil leak, permeability, while avoiding since the influence of temperature causes oil viscous
Thick influence mentions hammer to cause the problem of being unable to test.
8 upper surface of transition plates is fixed with buffer substrate tablet 17, and the setting of buffer substrate tablet 17 is being dropped hammer between 7 and transition plates 8, passes through setting
Buffer substrate tablet 17, when drop hammer 7 fall when, drop hammer 7 bogey 4 below shock when, buffer substrate tablet 17 has a cushion effect, extends dress
The service life set.
Measuring device 5 includes that crossbearer and setting multiple deflection sensors 18, crossbearer on crossbearer are connected to bearing frame 10
Side, multisensor calculate average value, guarantee the accurate of measurement.
Deflection sensor 18 includes sensor main body 19, sensor upper plate 20, pinboard 21, probe 22 and bottom plate 23, is visited
Needle 22 is fixed on the lower end of sensor main body 19 by pinboard 21, and sensor upper plate 20 is fixed on sensor by sunk screw
The upper end of main body 19, bottom plate 23 are connect by four springs 24 with sensor upper plate 20, and bottom plate 13 is provided with through-hole 25, and probe 22 is worn
Cross through-hole 25.The program forms flexible connection by four tension springs 24 between deflection sensor 18 and bottom plate 23, overcomes lateral
Influence of the sliding and vibration of bottom plate 23 caused by impact force to flexure measurement result, while the logical and probe outer diameter on bottom plate 23
Match, it is ensured that probe vertically moves, and prevents the sidesway of probe, improves flexure measurement accuracy.
Finally, it should be noted that the foregoing is merely a prefered embodiment of the invention, it is merely to illustrate technical side of the invention
Case is not intended to limit the scope of the present invention.It is any modification for being made all within the spirits and principles of the present invention, equivalent
Replacement, improvement etc., are included within the scope of protection of the present invention.
Claims (7)
1. a kind of electronic hammer-falling deflectometer of trailer-type, described curved including trailer, the benkelman beams deflectometer being arranged on the trailer and control
The host computer of heavy instrument, which is characterized in that the benkelman beams deflectometer includes outer frame body, and be arranged in loading device inside outer frame body,
Bogey below the loading device is set and is connected to the measuring device of the bogey side, the loading device
Including electromagnet, it is connected to dropping hammer below the electromagnet；The bogey includes the mistake that the lower section of dropping hammer is arranged in
Cab apron, the transition plates lower section are arranged pressure sensor, are connected with bearing frame, the bearing frame below the pressure sensor
Frame bottom is provided with loading plate, is provided with displacement sensor on the loading plate.
2. the electronic hammer-falling deflectometer of trailer-type according to claim 1, which is characterized in that the transition plates upper surface is fixed
There is buffer substrate tablet, the buffer substrate tablet setting is dropped hammer between the transition plates described.
3. the electronic hammer-falling deflectometer of trailer-type according to claim 1, which is characterized in that also set up inside the outer frame body
There is the first electric pushrod, the output shaft of first electric pushrod is connect by wirerope with the transition plates.
4. the electronic hammer-falling deflectometer of trailer-type according to claim 1, which is characterized in that the electromagnet uses elevator
Structure connection, the hoisting mechanism include being arranged in topmost for fixing the crossbeam of the electromagnet, for pushing the crossbeam
The second electric pushrod to move up and down.
5. the electronic hammer-falling deflectometer of trailer-type according to claim 4, which is characterized in that it further include guiding device, it is described
Guiding device includes two and is separately positioned on the guide sleeve at crossbeam both ends, and is arranged in two guide posts of two guide sleeves.
6. the electronic hammer-falling deflectometer of trailer-type according to claim 1, which is characterized in that the measuring device includes crossbearer
And multiple deflection sensors, the crossbearer are set on the crossbearer and are connected to the side of the bearing frame.
7. the electronic hammer-falling deflectometer of trailer-type according to claim 6, which is characterized in that the deflection sensor includes passing
Sensor main body, sensor upper plate, pinboard, probe and bottom plate, the probe are fixed on the sensor by the pinboard
The lower end of main body, the sensor upper plate are fixed on the upper end of the sensor main body by sunk screw, and the bottom plate passes through
Four springs are connect with the sensor upper plate, and the bottom plate is provided with through-hole, and the probe passes through the through-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811559644.9A CN109632534A (en) | 2018-12-19 | 2018-12-19 | A kind of electronic hammer-falling deflectometer of trailer-type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811559644.9A CN109632534A (en) | 2018-12-19 | 2018-12-19 | A kind of electronic hammer-falling deflectometer of trailer-type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109632534A true CN109632534A (en) | 2019-04-16 |
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ID=66075717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811559644.9A Pending CN109632534A (en) | 2018-12-19 | 2018-12-19 | A kind of electronic hammer-falling deflectometer of trailer-type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109632534A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110644336A (en) * | 2019-10-26 | 2020-01-03 | 浙江土工仪器制造有限公司 | Multifunctional detection vehicle |
| CN110700225A (en) * | 2019-10-23 | 2020-01-17 | 长沙理工大学 | Roadbed dynamic resilience modulus field test equipment and measuring method thereof |
| CN111380756A (en) * | 2020-02-18 | 2020-07-07 | 江山市发发科技有限公司 | Loading tool for measuring compression bending moment of reinforced concrete beam |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2869109Y (en) * | 2005-12-30 | 2007-02-14 | 北京航天计量测试技术研究所 | Portable drop hammer benkelman beams deflectometer |
| CN201152841Y (en) * | 2007-12-27 | 2008-11-19 | 北京航天计量测试技术研究所 | Full-automatic monkey hammer type benkelman beams deflectometer |
| CN201885922U (en) * | 2010-11-15 | 2011-06-29 | 北京航天计量测试技术研究所 | Flexible suspension deflection sensor |
| CN203462390U (en) * | 2013-09-13 | 2014-03-05 | 江苏苏科畅联科技有限公司 | Multi-point falling weight type deflection detecting vehicle |
-
2018
- 2018-12-19 CN CN201811559644.9A patent/CN109632534A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2869109Y (en) * | 2005-12-30 | 2007-02-14 | 北京航天计量测试技术研究所 | Portable drop hammer benkelman beams deflectometer |
| CN201152841Y (en) * | 2007-12-27 | 2008-11-19 | 北京航天计量测试技术研究所 | Full-automatic monkey hammer type benkelman beams deflectometer |
| CN201885922U (en) * | 2010-11-15 | 2011-06-29 | 北京航天计量测试技术研究所 | Flexible suspension deflection sensor |
| CN203462390U (en) * | 2013-09-13 | 2014-03-05 | 江苏苏科畅联科技有限公司 | Multi-point falling weight type deflection detecting vehicle |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110700225A (en) * | 2019-10-23 | 2020-01-17 | 长沙理工大学 | Roadbed dynamic resilience modulus field test equipment and measuring method thereof |
| CN110644336A (en) * | 2019-10-26 | 2020-01-03 | 浙江土工仪器制造有限公司 | Multifunctional detection vehicle |
| CN110644336B (en) * | 2019-10-26 | 2024-06-07 | 浙江土工仪器制造有限公司 | Multifunctional detection vehicle |
| CN111380756A (en) * | 2020-02-18 | 2020-07-07 | 江山市发发科技有限公司 | Loading tool for measuring compression bending moment of reinforced concrete beam |
| CN111380756B (en) * | 2020-02-18 | 2022-12-06 | 广东粤检工程质量检测有限公司 | Loading tool for measuring compression bending moment of reinforced concrete beam |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190416 |
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| RJ01 | Rejection of invention patent application after publication |