CN207608797U - A kind of anti-wind wheel type Benkleman beam deflectometer - Google Patents
A kind of anti-wind wheel type Benkleman beam deflectometer Download PDFInfo
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- CN207608797U CN207608797U CN201721700440.3U CN201721700440U CN207608797U CN 207608797 U CN207608797 U CN 207608797U CN 201721700440 U CN201721700440 U CN 201721700440U CN 207608797 U CN207608797 U CN 207608797U
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- lever
- alignment device
- infrared ray
- wind
- seat
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Abstract
The utility model discloses a kind of anti-wind wheel type Benkleman beam deflectometers, including preceding lever 5, rear lever 4, dial gauge 3, dial indicator bracket seat, preceding lever dolly seat 10, rear lever dolly seat 1, the first infrared ray alignment device 6, the second infrared alignment device 7 and wind shutter 2；The first infrared ray alignment device and the second infrared ray alignment device are provided on the preceding lever, the first infrared ray alignment device and the second infrared ray alignment device are set on preceding lever and can be slided along preceding lever level；The dial indicator bracket seat and the wind shutter is installed in the front or behind of the dial gauge；The dial indicator bracket seat, preceding lever dolly seat, rear lever dolly seat and wind shutter are respectively arranged on the base with the idler wheel 8 of locking function.The utility model can intuitively adjust and show front and back measuring basis in measurement process by the scale on preceding lever and rear lever, avoid the influence of human factor and detection method to test parameters；Secondly, benkelman beams deflectometer is moved using idler wheel, it is more convenient.
Description
Technical field
The utility model is related to engineering detecting instrument technical fields, are specifically related to a kind of anti-wind wheel type backman beam flexure
Instrument.
Background technology
Roadbed is the basic structure of highway, is the basis for supporting pavement structure, bears the work of traffic load jointly with road surface
Roadbed is reached by pavement structure with, traffic load, the integral strength and rigidity of the stress-strain characteristics of roadbed to road structure
It plays an important role.In the deformation of pavement structure, the deformation of roadbed accounts for about 70%~90%.Therefore, in high-grade highway
In construction, effectively quickly detection evaluation is most important for matrix of satisfying the need amount, long to reach stringent control roadbed quality assurance highway
Phase, safe operation purpose.
Currently, the compaction quality of roadbed is mainly reflected by several indexs such as compactness, the modulus of resilience and deflection value, it is domestic
The evaluation of Subgrade Compaction Quality is mainly carried out by compactness detection and deflection value detection.There are following two sides for these methods
The shortcomings that face：(1) compactness and deflection value are all the physical indexs of detection, and the direct deliberated index of Subgrade Compaction Quality is answered
This with mechanical index more precisely；(2) detection time is long, accuracy is not high, instrument and equipment is complicated for operation, testing cost is high etc. lacks
Point to construction quality cannot comprehensively, fast and accurately evaluate, it is difficult to which the construction speed for keeping up with highway influences to apply well
Work progress.Therefore, a kind of quick, accurate, efficient detection device test of research is the current task of top priority.
Pavement deflection value refers to the vertical deformation caused by road surface under wheel weight effect, it is reflection pavement strength
An index, pavement structure is thicker, and the more high then deflection value of intensity of ground surface material or roadbed is smaller, and on the contrary then deflection value is got over
Greatly, therefore in the work such as Pavement Design, construction, maintenance, reinforcing, the detection of pavement deflection value is essential means, in recent years
For highway division extensive use.
Road surface elasticity deflection value when Benkleman beam deflectometer is suitable for measuring static load or when the load of very slow speed,
And it can the good bulk strength for reflecting road surface.
Beckman benkelman beams deflectometer is used made of lever principle, for measuring the pavement deflection between automobile hind axle two-wheel
Value, road surface forms local subsidence under load（That is vertical deformation）, the shape of road surface reflection is the basin centered on load point
Shape, referred to as deflection basin, elasticity makes road surface be restored to original state after load is removed, and deflection basin disappears, and the difference before and after load is
For deflection value.Experiment proves that it is after load is removed that total flexure is unequal with elastic flexure, and pavement deflection basin not fully disappears,
Road surface can also have micro residual deformation, and pavement deflection value and speed, temperature etc. are because being known as substantial connection.
Existing Beckman benkelman beams deflectometer is primarily present following shortcoming：
1, without wind shutter, in the environment of having strong wind, since strong wind can cause benkelman beams deflectometer itself to shake acutely, thus
Dial gauge shaking can not acutely read valid data；
2, existing Benkleman beam deflectometer is connected using front and back two levers, and structure is longer, not easy to store；Gauge head size
Relatively too small, gauge head end is easy to wear or contact area is too small；
3, rebound deflection value under the load action of road surface is measured using lever principle, measurement accuracy is low.
Utility model content
The utility model in view of the above shortcomings of the prior art, provides a kind of anti-wind wheel type Benkleman beam deflectometer,
Utilize infrared ray alignment device authorization test wheel gap center stop position；Since it is provided with wind shutter, even if in strong wind day
Gas also can normal operation.
The technical solution of the utility model is as follows：
A kind of anti-wind wheel type Benkleman beam deflectometer, including preceding lever, rear lever, dial gauge, dial indicator bracket seat, preceding thick stick
Bar carrier base and rear lever dolly seat further include the first infrared ray alignment device, the second infrared alignment device and wind shutter；It is described
Preceding lever, rear lever are horizontally arranged after 4 are bolted, and preceding lever is connect through a radial bearing with preceding lever dolly seat；Institute
It is provided with the first infrared ray alignment device and the second infrared ray alignment device before stating on lever, the first infrared ray alignment device and the
Two infrared ray alignment devices are set on preceding lever and can be slided along preceding lever level；The dial gauge is through on dial indicator bracket
Table folder is installed, and the dial indicator bracket seat and the front or behind in the dial gauge install the wind shutter；The wind shutter
Netted in wave peak shape, wind shutter is equipped with multiple circular holes, and the lower end of wind shutter has been bolted wind shutter pedestal；It is described
Dial indicator bracket seat, preceding lever dolly seat, rear lever dolly seat and wind shutter are respectively arranged on the base with the rolling of locking function
Wheel.
In the present invention, refitting can be matched along rear lever slips for counterweight by being provided on lever in the rear
It sets.
In the present invention, the weight of the counter weight device is more than the first infrared ray alignment device and the second infrared alignment
The sum of total weight of device.
In the present invention, graduation mark, the zero graduation line of the graduation mark are equipped on the preceding lever and rear lever
It is arranged in the junction of preceding lever and rear lever.
In the present invention, the wind shutter is aluminum board, and the small sircle hole and diameter of diameter 10mm are provided on wind shutter
The big hole of 16mm.
Compared with prior art, the beneficial effects of the utility model are shown：
One, by the scale on preceding lever and rear lever, it can intuitively adjust and show front and back measurement base in measurement process
Standard avoids the influence of human factor and detection method to test parameters；
Two, it is aligned using infrared ray alignment device, simplifies test operation, improved work efficiency；
Three, since it is provided with wind shutter, pavement deflection value can be normally measured under strong wind severe weather conditions；
Four, it is respectively arranged on the base with band in dial indicator bracket seat, preceding lever dolly seat, rear lever dolly seat and wind shutter
The idler wheel of latch functions moves benkelman beams deflectometer using idler wheel, more easy and convenient.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the windproof plate structure schematic diagram of the utility model.
Specific implementation mode
Below in conjunction with the drawings and the specific embodiments, the utility model will be further described.
As depicted in figs. 1 and 2, a kind of anti-wind wheel type Benkleman beam deflectometer, including preceding lever 5, rear lever 4, dial gauge
3, dial indicator bracket seat, preceding lever dolly seat 10 and rear lever dolly seat 1 further include that the first infrared ray alignment device 6, second is red
Outer alignment device 7 and wind shutter 2；The preceding lever 5, rear lever 4 after 4 are bolted be horizontally arranged, preceding lever 5 through one to
Mandrel is held connect 10 with preceding lever dolly seat；The first infrared ray alignment device 6 and the second infrared ray are provided on the preceding lever
Alignment device 7, the first infrared ray alignment device 6 and the second infrared ray alignment device 7 are set on preceding lever and can be along preceding levers
Level sliding；The dial gauge is through the table folder installation on dial indicator bracket, the dial indicator bracket seat and in the dial gauge
Front or behind installs the wind shutter；The wind shutter is netted in wave peak shape, and wind shutter is equipped with multiple circular holes, wind shutter
2 lower end has been bolted wind shutter pedestal；The dial indicator bracket seat, preceding lever dolly seat, rear lever dolly seat and
Wind shutter is respectively arranged on the base with the idler wheel of locking function.
In a preferred approach, a height of 1.5m of the wind shutter, long 3m, wherein peak height 50mm-80mm, the poroid knot of wind shutter
Structure saves material, while mitigating weight, can effectively cover strong wind, while ensureing certain daylighting and wind shutter stability,
Maximum wind velocity compensation can reach 80% or so.
In preferred embodiment, the length of preceding lever is 3.6m, and the length of rear lever is 1.8m.
1）Instruction carriage tire radius r is measured, the first infrared ray alignment device, the second infrared ray alignment device 3 is calculated
Respectively apart from backman beam forearm tip position 3cm and 5cm, the i.e. infrared ray and benkelman beams deflectometer of the first infrared ray alignment device transmitting
Spacing is (r+0.03) m between gauge head, spacing is between the infrared ray and benkelman beams deflectometer gauge head of the transmitting of the second infrared ray alignment device
(r+0.05) m is met with this《Highway subgrade road surface on-the-spot test regulation》The requirement of JTG E60-2008；
2）By the way that counter weight device is calculated in the present position of rear lever 4, counter weight device is away from benkelman beams deflectometer end length
（0.376+0.4×r）m；
3）Instruction carriage is travelled to measuring point, Benkleman beam deflectometer gauge head is placed on measuring point, is moved forward and backward experiment
The infrared ray that vehicle makes the first infrared ray alignment device 6, the second infrared ray alignment device 7 project is located in test wheel gap
Outside portion, test wheel gap；
4）Instruction carriage is flame-out, and installation dial gauge completes remaining test procedure.
Finally, it will be understood that embodiment described herein is only to illustrate the principle of the embodiment of the present application.Other
Deformation may also belong to scope of the present application.Therefore, as an example, not a limit, the alternative configuration of the embodiment of the present application is visual
It is consistent with teachings of the present application.Correspondingly, embodiments herein is not limited only to the implementation that the application is clearly introduced and described
Example.
Claims (5)
1. a kind of anti-wind wheel type Benkleman beam deflectometer, including preceding lever（5）, rear lever（4）, dial gauge（3）, dial indicator bracket
Seat, preceding lever dolly seat（10）With rear lever dolly seat（1）, which is characterized in that further include the first infrared ray alignment device（6）、
Second infrared alignment device（7）And wind shutter（2）；The preceding lever（5）, rear lever（4）Level is put after 4 are bolted
It sets, preceding lever（5）Through a radial bearing and preceding lever dolly seat（10）Connection；It is provided with the first infrared ray pair on the preceding lever
Standard apparatus（6）With the second infrared ray alignment device（7）, the first infrared ray alignment device and the second infrared ray alignment device are set in
It can slide on preceding lever and along preceding lever level;The dial gauge is installed through the table folder on dial indicator bracket, the dial gauge
Carrier base and the wind shutter is installed in the front or behind of the dial gauge；The wind shutter is netted in wave peak shape, windproof
Plate is equipped with multiple circular holes, and the lower end of wind shutter has been bolted wind shutter pedestal；The dial indicator bracket seat, preceding lever
Carrier base, rear lever dolly seat and wind shutter are respectively arranged on the base with the idler wheel of locking function.
2. anti-wind wheel type Benkleman beam deflectometer according to claim 1, which is characterized in that be arranged on lever in the rear
Having can be along the counter weight device for counterweight of rear lever slips.
3. anti-wind wheel type Benkleman beam deflectometer according to claim 2, which is characterized in that the weight of the counter weight device
More than the sum of the total weight of the first infrared ray alignment device and the second infrared alignment device.
4. anti-wind wheel type Benkleman beam deflectometer according to claim 1, which is characterized in that the preceding lever and rear lever
On be equipped with graduation mark, the zero graduation line of the graduation mark is arranged in the junction of preceding lever and rear lever.
5. anti-wind wheel type Benkleman beam deflectometer according to claim 1, which is characterized in that the wind shutter is aluminium
Plate is provided with the big hole of the small sircle hole and diameter 16mm of diameter 10mm on wind shutter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721700440.3U CN207608797U (en) | 2017-12-08 | 2017-12-08 | A kind of anti-wind wheel type Benkleman beam deflectometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721700440.3U CN207608797U (en) | 2017-12-08 | 2017-12-08 | A kind of anti-wind wheel type Benkleman beam deflectometer |
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| Publication Number | Publication Date |
|---|---|
| CN207608797U true CN207608797U (en) | 2018-07-13 |
Family
ID=62797684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721700440.3U Expired - Fee Related CN207608797U (en) | 2017-12-08 | 2017-12-08 | A kind of anti-wind wheel type Benkleman beam deflectometer |
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| Country | Link |
|---|---|
| CN (1) | CN207608797U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163994A (en) * | 2018-09-21 | 2019-01-08 | 苏交科集团股份有限公司 | Curved measuring system is sunk in a kind of new automatic digital display rebound |
-
2017
- 2017-12-08 CN CN201721700440.3U patent/CN207608797U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163994A (en) * | 2018-09-21 | 2019-01-08 | 苏交科集团股份有限公司 | Curved measuring system is sunk in a kind of new automatic digital display rebound |
| CN109163994B (en) * | 2018-09-21 | 2024-03-01 | 苏交科集团股份有限公司 | Novel full-automatic digital display rebound bending measurement system |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180713 Termination date: 20181208 |
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| CF01 | Termination of patent right due to non-payment of annual fee |