CN1687528A - Pavement planometer - Google Patents
Pavement planometer Download PDFInfo
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- CN1687528A CN1687528A CN 200510200242 CN200510200242A CN1687528A CN 1687528 A CN1687528 A CN 1687528A CN 200510200242 CN200510200242 CN 200510200242 CN 200510200242 A CN200510200242 A CN 200510200242A CN 1687528 A CN1687528 A CN 1687528A
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Abstract
This is a kind of road surface planometer including machinery body and host which comprised of microcomputer, displaying screen, printer and pile. Its machinery body is eight-wheel extendable level adjusting structure. On the host is firmly linked the host rack, host and displacement sensor. The front wheel group is connected with the front wheel machinery rack by four front wheels. The foreside of the front wheel machinery rack is connected with traction rack, the upside of the front wheel machinery rack is connected with the front back extended girder, and the rearward of the front girder is inserted and flexed inside the middle girder. The back wheel group is connected with the back wheel machinery rack by four back wheels, the upside of the front wheel machinery rack is connected with the forward extended back girder, and the rearward of the back girder is inserted and flexed inside the middle girder. The middle girder is firmly linked by two transverse hollow poles. The upper gemel of the middle girder is linked with the testing wheel arm, whose lower end equips testing wheels. There links pulling reeds between testing wheel and machinery body. It's provided with advantages as convenient to transport, simply to operate, well and truly tested, high dependability, high level adjusting ability and simple to use. It can be used in testing the road surface smoothness of road, square and airport runway.
Description
(1) technical field
The present invention relates to a kind of engineering planometer, particularly a kind of pavement planometer.
(2) background technology
Pavement planometer is the measuring apparatus that detects pitch such as road, square, airfield runway or concrete road surface evenness.Existing pavement planometer comprises body, main frame, and main frame comprises sensor, micro computer, display screen, printer and battery pack.Its body is the four-wheel structure, and its automatic leveling capability is relatively poor, and measure error is bigger.
(3) summary of the invention
The purpose of this invention is to provide a kind of pavement planometer, it is relatively poor to solve the automatic leveling capability of body, the technical problem that measure error is bigger.
Technical scheme of the present invention: this pavement planometer, comprise body, main frame, main frame comprises micro computer, display screen, printer and battery pack, it is characterized in that;
Its body eight is taken turns extension type leveling structure, fixedly connected mainframe, main frame and displacement transducer on the body by what preceding wheels, back wheels and measuring wheel group were formed;
Preceding wheels: four front-wheels are connected with the front-wheel frame, connect hitch frame at the front-wheel frame front, connect the front-axle beam that extends back at the front-wheel upper rack, and the front-axle beam rear end is inserted also and stretched in central sill;
Back wheels: four trailing wheels are connected with the trailing wheel frame, connect the back rest that extends forward at the trailing wheel upper rack, and back rest front end inserts and stretches in central sill;
The measuring wheel group: central sill is connected by two horizontal hollow stems and forms, hinged measuring wheel arm on the central sill, and measuring wheel arm lower end is equipped with measuring wheel, is connected with extension spring between measuring wheel arm and the body, is equipped with magnet and electromagnetic sensor on the measuring wheel.
The hollow stem of above-mentioned central sill is the rectangle hollow pipe, and the front-axle beam and the back rest are rectangle shaped steel.
The hollow stem of above-mentioned central sill is a circular hollow tube, and the front-axle beam and the back rest are circular steel.
Above-mentioned trailing wheel frame comprises: connect two stringers of both sides front-wheel, trailing wheel respectively and be connected two needle beams between the stringer.
Above-mentioned four trailing wheels are connected wheel fork respectively between each wheel shaft and stringer.
Be installed with vertical rotating shaft on the above-mentioned stringer, vertical rotating shaft is connected with wheel fork.
Be installed with the vertical wheel pin on the above-mentioned stringer, the vertical wheel pin is connected with wheel fork.
On the above-mentioned measuring wheel armed lever tension spring shaft is arranged, be connected with extension spring between tension spring shaft and the body.
Above-mentioned measuring wheel armed lever lower end connects the measuring wheel fork, and the measuring wheel fork is connected with the measuring wheel axle, and measuring wheel is stuck and also is connected with the measuring staff that is used for the displacement transducer line.
Beneficial effect: the body of pavement planometer of the present invention is eight to take turns and can walk telescopicly, and sampling mechanism and data are handled and finished by main frame.By artificial or vehicle towed, the present invention can road pavement carry out continuous measurement, relatively truly reflects the situation of surface evenness intuitively.Data after the measurement are handled in real time by the main frame that is installed on the body, and by mini-printer field print surface evenness [σ] value, its value is the important indicator of Road Detection, evaluation.This pavement planometer adopts telescopic structure design and whole stainless steel material to make, and has automatic levelling function, has and is convenient to transportation, is convenient to maintaining, and is easy and simple to handle, measures accurately reliability height, advantage such as anti-interference is good, and leveling capability is strong, and is easy to use.Can be used for detecting the measurement of pitches such as road, square, airfield runway or concrete road surface evenness, be particularly suitable for quality control and quality inspection unit the detection when inspection of quality of unit in charge of construction in work progress.
(4) description of drawings
Fig. 1 is the structural representation of the present invention when extending;
Fig. 2 is the structural representation of the present invention when shortening.
Fig. 3 is the schematic top plan view of the present invention when extending;
Fig. 4 is the schematic top plan view of the present invention when shortening.
Fig. 5 is the structural representation of measuring wheel group;
Fig. 6 is the lateral view of Fig. 5.
Fig. 7 is the structural representation of trailing wheel frame;
Fig. 8 is the vertical view of Fig. 7;
Fig. 9 is the lateral view of Fig. 7.
Wheels, the preceding front-wheel of 11-, 12-front and back wheel, 13-front-wheel frame, 14-front-axle beam, 15-hitch frame before the 1-.
Trailing wheel, 23-trailing wheel frame, the 24-back rest, 25-stringer, 26-needle beam, 27-wheel fork, the vertical rotating shaft of 28-, 29-vertical wheel pin behind front-wheel, the 22-behind wheels, the 21-behind the 2-.
3-measuring wheel group, 31-measuring wheel, 32-measuring wheel armed lever, 33-measuring wheel fork, 34-central sill, 35-extension spring, 36-tension spring shaft, 37-measuring wheel axle, 38-measuring staff.
4-host groups, 41-main frame, 42-mainframe, 43-battery, 44-magnet, 45-electromagnetic sensor, 46-displacement transducer.
(5) specific embodiment
Embodiment is referring to Fig. 1,2,3,4, and this pavement planometer, its body are eight to take turns extension type leveling structure, fixedly connected main frame on the body, wherein specifically being constructed as follows of body part:
The formation of preceding wheels 1: four front- wheels 11,12 are connected with front-wheel frame 13, connect hitch frame 15 at the front-wheel frame front, connect the front-axle beam 14 that extends back at the front-wheel upper rack, and the front-axle beam rear end is inserted also and stretched in central sill 34.
The formation of back wheels 2: four trailing wheels 21,22 are connected with trailing wheel frame 23, connect the back rest 24 that extends forward at the trailing wheel upper rack, and back rest front end inserts and stretches in central sill 4.
Referring to Fig. 7,8,9, the formation of above-mentioned trailing wheel frame: connect two stringers 25 of both sides front-wheel, trailing wheel respectively and be connected two needle beams 26 between the stringer.Four trailing wheels are connected wheel fork 27 respectively between each wheel shaft and stringer.Be installed with vertical rotating shaft 28 on the stringer, vertical rotating shaft is connected with wheel fork.Be installed with vertical wheel pin 29 on the above-mentioned stringer, the vertical wheel pin is connected with wheel fork.Can be installed with stage clip on the above-mentioned vertical wheel pin.
The formation of measuring wheel group 3: referring to 5,6, central sill 4 is connected by two horizontal hollow stems and forms, and the hollow stem of central sill is rectangle hollow pipe or circular hollow tube, and the front-axle beam and the back rest are rectangle shaped steel or circular steel.Central sill 4 is hinged with measuring wheel armed lever 32, and measuring wheel armed lever lower end is equipped with measuring wheel 31, on the above-mentioned measuring wheel armed lever tension spring shaft 36 is arranged, and is connected with extension spring 35 between tension spring shaft 36 and the body central sill 4.Above-mentioned measuring wheel armed lever 32 lower ends connect measuring wheel fork 33, and measuring wheel fork 33 is connected with measuring wheel axle 37, and measuring wheel is stuck and also is connected with measuring staff 38, is used for and displacement transducer 46 lines.The time spent can not be suspended on the hook on the central sill measuring wheel group.
Wheels 1 are taken turns walking mechanism with back wheels 2 formations eight before above-mentioned; It is the vulcanie wheel of 200mm that wheel adopts diameter, and wheel shaft adopts needle bearing; Preceding wheels are equipped with rotating shaft in X, Y, three directions of Z, make and are convenient to again turn in leveling; Back wheels are provided with vertical rotating shaft 28 in Z-direction, are convenient to again turn to simultaneously for the swing when walking fast of front-wheel after preventing, the spy is provided with a vertical wheel pin 29 above it, plays the movable latch effect, with its pinning back front-wheel, prevents its swing when its quick walking.
Front-axle beam 14, central sill 34 and the back rest 24 are linked to be three meters benchmark roof beams structure; Central sill by two section 80 * 80 * 3 (mm) square type shaped steel up and down Combination Welding form; For ease of transportation, the front-axle beam and the back rest are made up of 60 * 60 * 3 (mm) square type shaped steel respectively, can distinguish in the retraction central sill, and making the minimum dimension after frame shortens is 1.61 meters; And central sill square type shaped steel Combination Welding has up and down increased the integral rigidity of its stage casing part.
Produce pulse by electromagnetic sensor and the relative motion that is embedded in magnet on the measuring wheel wheel hub during measurement, thereby obtain travel distance and sampling interval.Utilize the rolling on measuring wheel 31 and ground, can obtain travel distance and sampling interval by being embedded in the small magnet on the wheel hub and being installed in the electromagnetic sensor that wheel sticks; Utilize two groups of extension springs that measuring wheel and ground are closely contacted its height with ground is changed, measure its displacement by the displacement transducer 46 that is fixed on the body mid point.It is the vulcanie wheel of 191mm that measuring wheel 31 adopts diameters, and it is taken turns and week is 600mm, at the uniform six pieces of magnet 44 of its wheel hub, i.e. and the measuring wheel walking 600mm that circles, switching value of every 100mm output is adopted sample value one time thereby realize measuring travel distance and per 0.1 meter.
The formation of host groups 4: referring to Fig. 1,5,6, main frame 41 is finished sampling and data processing work, and it mainly is made up of sensor, micro computer, display screen, printer, battery pack.Main frame 41 is contained on the mainframe 42, and mainframe 42, battery 43, displacement transducer 46 all are placed on the body, and magnet 44 and electromagnetic sensor 45 are installed on the wheel hub of measuring wheel 31.
Measuring principle: displacement transducer 46 is converted to analog signal with the fluctuating deviation on road surface, deliver to A/D converter, micro computer is tested travel distance by electromagnetic sensor, (China's existing " highway subgrade road surface on-the-spot test rules " when walking to predetermined sampled point, adopting a sample value with per 0.1 meter is the interval), micro computer starts A/D converter automatically, the sample value of this point is converted to corresponding data signal, and send into micro computer and carry out preliminary treatment, micro computer just calculates the value of this section automatically and deposits in the memory after intact 1000 sample values of every collection; Proceed following sampling and processing simultaneously.After testing whole highway sections, can with per 100 meters be one section value Print All, the also printable simultaneously average that goes out whole highway sections.
The key technical indexes of displacement transducer is as follows: range: 0～± 25mm; Resolution ratio:＜0.02mm; The linearity:＜0.2%; Repeatability error:＜0.1mm; Supply voltage: DC5V.
Profile of the present invention:
Folding back size: length * wide * height=1610 * 600 * 600 (millimeters);
Launch the back size: length * wide * height=3700 * 600 * 600 (millimeters).
Test speed of the present invention＜10 kilometer/h;＜10 kilometers of continuous measurement distances; Measuring distance precision＜0.001m; Measure displacement accuracy＜0.05 millimeter; Measurement displacement maximum deviation＜± 25 millimeters; Sampling interval: 0.1m～1.0m is adjustable (0.1m at interval); External power supply: DC12V.
Claims (9)
1. a pavement planometer comprises body, main frame, and main frame comprises micro computer, display screen, printer and battery pack, it is characterized in that:
Its body eight is taken turns extension type leveling structure, fixedly connected mainframe, main frame and displacement transducer on the body by what preceding wheels, back wheels and measuring wheel group were formed;
Preceding wheels: four front-wheels are connected with the front-wheel frame, connect hitch frame at the front-wheel frame front, connect the front-axle beam that extends back at the front-wheel upper rack, and the front-axle beam rear end is inserted also and stretched in central sill;
Back wheels: four trailing wheels are connected with the trailing wheel frame, connect the back rest that extends forward at the trailing wheel upper rack, and back rest front end inserts and stretches in central sill;
The measuring wheel group: central sill is connected by two horizontal hollow stems and forms, hinged measuring wheel arm on the central sill, and measuring wheel arm lower end is equipped with measuring wheel, is connected with extension spring between measuring wheel arm and the body, is equipped with magnet and electromagnetic sensor on the measuring wheel.
2. pavement planometer according to claim 1 is characterized in that: the hollow stem of above-mentioned central sill is the rectangle hollow pipe, and the front-axle beam and the back rest are rectangle shaped steel.
3. pavement planometer according to claim 1 is characterized in that: the hollow stem of above-mentioned central sill is a circular hollow tube, and the front-axle beam and the back rest are circular steel.
4. pavement planometer according to claim 1 is characterized in that: above-mentioned trailing wheel frame comprises: connect two stringers of both sides front-wheel, trailing wheel respectively and be connected two needle beams between the stringer.
5. pavement planometer according to claim 4 is characterized in that: above-mentioned four trailing wheels are connected wheel fork respectively between each wheel shaft and stringer.
6. pavement planometer according to claim 5 is characterized in that: be installed with vertical rotating shaft on the above-mentioned stringer, vertical rotating shaft is connected with wheel fork.
7. pavement planometer according to claim 5 is characterized in that: be installed with the vertical wheel pin on the above-mentioned stringer, the vertical wheel pin is connected with wheel fork.
8. pavement planometer according to claim 1 is characterized in that: on the above-mentioned measuring wheel armed lever tension spring shaft is arranged, be connected with extension spring between tension spring shaft and the body.
9. pavement planometer according to claim 1 is characterized in that: above-mentioned measuring wheel armed lever lower end connects the measuring wheel fork, and the measuring wheel fork is connected with the measuring wheel axle, and measuring wheel is stuck and also is connected with the measuring staff that is used for the displacement transducer line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005102002426A CN100472012C (en) | 2005-04-22 | 2005-04-22 | Pavement planometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005102002426A CN100472012C (en) | 2005-04-22 | 2005-04-22 | Pavement planometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1687528A true CN1687528A (en) | 2005-10-26 |
| CN100472012C CN100472012C (en) | 2009-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005102002426A Active CN100472012C (en) | 2005-04-22 | 2005-04-22 | Pavement planometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100472012C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101251380B (en) * | 2008-03-24 | 2010-08-25 | 山东省交通科学研究所 | Follow-up type push planeness measuring apparatus |
| CN106441208A (en) * | 2016-11-08 | 2017-02-22 | 长安大学 | Flatness measurement instrument and method for loose laying layer of bituminous pavement |
| CN109468929A (en) * | 2018-12-25 | 2019-03-15 | 河南城建学院 | Flatness detection trolley based on CPLD |
-
2005
- 2005-04-22 CN CNB2005102002426A patent/CN100472012C/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101251380B (en) * | 2008-03-24 | 2010-08-25 | 山东省交通科学研究所 | Follow-up type push planeness measuring apparatus |
| CN106441208A (en) * | 2016-11-08 | 2017-02-22 | 长安大学 | Flatness measurement instrument and method for loose laying layer of bituminous pavement |
| CN106441208B (en) * | 2016-11-08 | 2018-04-06 | 长安大学 | A kind of bituminous paving pine laying roughness measurement instrument and measuring method |
| CN109468929A (en) * | 2018-12-25 | 2019-03-15 | 河南城建学院 | Flatness detection trolley based on CPLD |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100472012C (en) | 2009-03-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: BEIJING GUODAOTONG HIGHWAY DESIGN & RESEARCH INSTITUTE Assignor: Municipal Engineering Inst. of Beijing Contract record no.: 2010990000740 Denomination of invention: Pavement planometer Granted publication date: 20090325 License type: Exclusive License Open date: 20051026 Record date: 20100909 |
|
| EM01 | Change of recordation of patent licensing contract |
Change date: 20111101 Contract record no.: 2010990000740 Assignee after: Beijing Guodaotong Highway Design & Research Institute Co., Ltd. Assignee before: BEIJING GUODAOTONG HIGHWAY DESIGN & RESEARCH INSTITUTE |