CN201809708U - Gravity compensation line hanging structure - Google Patents
Gravity compensation line hanging structure Download PDFInfo
- Publication number
- CN201809708U CN201809708U CN 201020537554 CN201020537554U CN201809708U CN 201809708 U CN201809708 U CN 201809708U CN 201020537554 CN201020537554 CN 201020537554 CN 201020537554 U CN201020537554 U CN 201020537554U CN 201809708 U CN201809708 U CN 201809708U
- Authority
- CN
- China
- Prior art keywords
- gravity
- line
- transect
- sample line
- counterweight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Road Paving Machines (AREA)
Abstract
The utility model relates to a gravity compensation line hanging structure, which belongs to road surface engineering machinery. The gravity compensation line hanging structure comprises soldier piles, cross bars, a sample line and a leveling sensor, wherein the soldier piles are erected at a certain distance, the cross bars are arranged on the soldier piles, the sample line is mounted at the ends of the cross bars, and the leveling sensor is provided with a swinging arm, a detection swinging bar and a counterweight. The detection swinging bar of the leveling sensor arranged below the sample line contacts with the sample line. After the structure is adopted, a moment is applied to the swinging arm of the leveling sensor to adjust the distance between the counterweight and a rotary shaft of the leveling sensor, the moment of the counterweight is balanced with the resultant moment of the gravity of the detection swinging bar and the gravity of the sample line to compensate the gravity of the detection swinging bar and the gravity of the sample line, flexible deformation of the sample line caused by the influence of the gravity is corrected and compensated, errors caused by paving reference are eliminated, and paving evenness can be improved greatly, so that road surface quality can be enhanced further.
Description
Technical field
The utility model relates to a kind of gravity compensation hanging wire structure, belongs to field of road engineering machinery.
Background technology
Planeness is to weigh the important parameter of pavement spread quality, and the method that guarantees planeness generally speaking is to utilize the levelling instrument of hanging wire structure that road surface and the line-transect that paves compared, with reference to the line-transect adjustment state that paves.Traditional hanging wire structure is to beat earlier behind the soldier piles fixed transverse rod on soldier piles, and line-transect is fixed on above the cross bar, and line-transect one end is fixed, other end stretcher tensioning.The levelling instrument is surveyed fork and is placed on above the line-transect, closely contacts with line-transect by gravity.Paver when work levelling instrument is surveyed fork and is slided on line-transect, according to the shape adjustment of the line-transect state that paves.Owing to be subjected to action of gravity, the line-transect sag bent comes balance fork gravitation energy enough to reduce the pressure of fork to line-transect although on the detection fork counterweight is housed like this, and the error that the line-transect amount of deflection is brought still surpasses 2mm.Therefore, the error that produces as the line-transect of the benchmark that paves has directly had influence on the planeness on road surface, makes that spreading evenness is difficult to further improve again, obstacle the lifting of pavement quality.
The utility model content
The technical problems to be solved in the utility model provides a kind ofly can pass through gravity compensation, eliminates the gravity compensation hanging wire structure of line-transect amount of deflection to the line-transect influence.
In order to solve the problems of the technologies described above, gravity compensation hanging wire structure of the present utility model comprises the soldier piles set up, be arranged on cross bar on the soldier piles, be installed on crossbar end line-transect, be provided with rocking arm, survey the levelling sensor of fork and counterweight, the detection fork of levelling sensor is arranged at the below of line-transect; The levelling sensor is surveyed fork and is contacted with line-transect from the line-transect below.
After adopting such structure,, can recover normal by threaded adjustment balance position absolute altitude for being subjected to the error that action of gravity line-transect absolute altitude has existed.Rocking arm to the levelling instrument applies the distance that a moment is adjusted counterweight and the rotating shaft of levelling instrument, counterbalance moment and the resultant moment of surveying fork gravity and line-transect gravity are balanced each other, compensate surveying fork and the suffered gravity of line-transect, having corrected the flexible deformation who line-transect is produced owing to gravity effect makes line-transect be compensated because of the flexible deformation that gravity produces, eliminated the error of bringing by the benchmark that paves, raising to spreading evenness brings very big help, thereby can further promote pavement quality.
Description of drawings
Fig. 1 is the front view of the utility model gravity compensation hanging wire structure.
Fig. 2 is the vertical view of the utility model gravity compensation hanging wire structure.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the technical solution of the utility model is described in further details.
Gravity compensation hanging wire structure of the present utility model as seen from the figure is included in the soldier piles set up between the certain distance, be arranged on cross bar on the soldier piles, be installed on crossbar end line-transect, be provided with rocking arm, survey the levelling sensor of fork and counterweight, the detection fork of levelling sensor is arranged at the below of line-transect; The end that the levelling sensor is surveyed fork contacts with the line-transect bottom surface.
Embodiment of the present utility model is: 1, draw behind the accurate baseline every 5～10 meters by construction requirement and squeeze into soldier piles 9 on ground, with connector 7 cross bar 6 of packing into, with line-transect 5 cross bar 6 ends and fixing of packing into.
2, the tensioning line-transect 5, adjust the height of cross bar position line-transect 5 according to the construction absolute altitude, and lock contiguous block and cross bars 6 with screw 8.
3, paver is in place in the centre position of two soldier piles 9, then the rocking arm 3 and the detection fork 4 of levelling sensor 2 are installed as scheming, and will be surveyed the below that fork 4 places line-transect 5.
There has been error in the line-transect that the centre position of back two soldier piles this moment is installed according to above-mentioned steps owing to be subjected to the action of gravity absolute altitude, the rotation screw thread, adjust the position of counterweight 1 by screw thread, measure the line-transect absolute altitude of surveying the fork position simultaneously, recover normal up to this position absolute altitude, the position adjustment of counterweight 1 finishes and with nut check counterweight 1, so far utilizes the method levelling to finish.The principle of its levelling is: the moment that the rocking arm of levelling instrument is applied, direction with survey the pendulum stalk the stressed moment that produces opposite, this moment makes the detection fork apply power upwards to line-transect, the distance of adjusting counterweight and the rotating shaft of levelling instrument balances each other counterbalance moment and the resultant moment of surveying fork gravity and line-transect gravity, compensate surveying fork and the suffered gravity of line-transect, having corrected the flexible deformation who line-transect is produced owing to gravity effect makes line-transect be compensated because of the flexible deformation that gravity produces, finish to this hanging wire and adjustment process, device can be realized line-transect is carried out gravity compensation thus, eliminates the line-transect error.
Claims (1)
1. gravity compensation hanging wire structure, comprise the soldier piles (9) set up, be arranged on cross bar (6) on the soldier piles (9), be installed on cross bar (6) end line-transect (5), be provided with rocking arm (3) and survey the levelling sensor (2) of fork (4) and counterweight, it is characterized in that: the detection fork (4) of described levelling sensor (2) is arranged at the below of line-transect (5); Described levelling sensor is surveyed fork (4) and is contacted with line-transect from line-transect (5) below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020537554 CN201809708U (en) | 2010-09-21 | 2010-09-21 | Gravity compensation line hanging structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020537554 CN201809708U (en) | 2010-09-21 | 2010-09-21 | Gravity compensation line hanging structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201809708U true CN201809708U (en) | 2011-04-27 |
Family
ID=43892649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020537554 Expired - Lifetime CN201809708U (en) | 2010-09-21 | 2010-09-21 | Gravity compensation line hanging structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201809708U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101935974A (en) * | 2010-09-21 | 2011-01-05 | 江苏华通动力重工有限公司 | Gravity compensating line-hanging structure and levelling method |
-
2010
- 2010-09-21 CN CN 201020537554 patent/CN201809708U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101935974A (en) * | 2010-09-21 | 2011-01-05 | 江苏华通动力重工有限公司 | Gravity compensating line-hanging structure and levelling method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101935974B (en) | Gravity compensating line-hanging structure and levelling method | |
| CN102392664B (en) | Hydraulic support with inclination sensors and height measurement method thereof | |
| CN103033374B (en) | Test device of vertical structure model of shield tunnel | |
| CA2660458A1 (en) | Apparatus and method for measuring convergence using fiber bragg grating sensor | |
| CN106053205A (en) | Self-balance lever-type loading device and using method thereof | |
| CN104749047B (en) | A kind of flexural member Mechanics Performance Testing device and its application method | |
| CN202074959U (en) | Point measuring device of deformation monitoring combination for tunnel engineering | |
| CN201145611Y (en) | Large-scale weighing apparatus calibration device without weights | |
| CN102175418A (en) | Decoupling-type free vibration suspending structure of bridge segment model | |
| CN105716959A (en) | Foundation pit model test device capable of simulating dynamic change of underground water level | |
| CN201809708U (en) | Gravity compensation line hanging structure | |
| CN210014976U (en) | Automatic counter of drop hammer type deflectometer | |
| CN201754134U (en) | Bidirectional-displacement adjustable detecting mechanism of tri-axial apparatus | |
| CN209387200U (en) | Center torsion bar type mass of object, mass center and rotation inerttia mechanism | |
| CN208076294U (en) | A kind of consolidation apparatus | |
| CN105842125B (en) | A kind of crack analog regulation mechanism of slip casting diffusion test set | |
| CN104895126A (en) | Model pile body internal force rating device and method | |
| CN209508970U (en) | A kind of construction static pile press | |
| CN114111541B (en) | Bridge dynamic deflection test system and method based on stress rigidization effect | |
| CN201463879U (en) | Three-legged stand for transit | |
| CN103603348B (en) | Stake connector | |
| CN109163846A (en) | Center torsion bar type mass of object, mass center and rotation inerttia mechanism | |
| CN201787936U (en) | Device for observing prepressing precipitation of bridge bracket | |
| CN209640341U (en) | A kind of soil compaction measuring means and device | |
| TWI359223B (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110427 Effective date of abandoning: 20120523 |