CN113802441A - Slope self-adaptive device for deflectometer and control method thereof - Google Patents
Slope self-adaptive device for deflectometer and control method thereof Download PDFInfo
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- CN113802441A CN113802441A CN202111183836.6A CN202111183836A CN113802441A CN 113802441 A CN113802441 A CN 113802441A CN 202111183836 A CN202111183836 A CN 202111183836A CN 113802441 A CN113802441 A CN 113802441A
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- weight
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- deflectometer
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/01—Devices or auxiliary means for setting-out or checking the configuration of new surfacing, e.g. templates, screed or reference line supports; Applications of apparatus for measuring, indicating, or recording the surface configuration of existing surfacing, e.g. profilographs
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- Structural Engineering (AREA)
- Road Repair (AREA)
- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
Abstract
The invention discloses a slope self-adaptive device for a deflectometer, which comprises a barrel, wherein weights are arranged in the barrel, a hydraulic lifting mechanism for lifting the weights is arranged at the top of the barrel, a plurality of guide wheels are arranged on the inner side wall of the barrel along the axial direction of the barrel, a guide groove in rolling clamping connection with the guide wheels is formed in each weight, a plurality of gears are arranged on the inner side wall of the barrel opposite to the guide wheels along the axial direction of the barrel, racks meshed with the gears are arranged on the weights, each gear is connected with an encoder, each gear is connected with a servo motor through a clutch, and a controller is respectively in communication connection with the hydraulic lifting mechanism, the encoders and the servo motors. The invention can improve the defects of the prior art and is convenient for accurately controlling the load when the weight is in an inclined state.
Description
Technical Field
The invention relates to the technical field of pavement detection, in particular to a slope self-adaptive device for a deflectometer and a control method thereof.
Background
The deflectometer is an instrument for measuring the deformation of a road surface after receiving impact force load. The falling weight deflectometer realizes load loading through the free falling body movement of the weight. The traditional falling weight deflectometer always keeps the vertical downward movement direction of the weight, when the road surface has an inclination angle, the deformation quantity of the road surface under the state that the load is vertically loaded on the road surface needs to be measured according to the actual detection requirement, at this time, if the movement direction of the weight is simply changed into the state that the weight is vertically loaded on the road surface, the load applied on the road surface can be changed due to the change of the movement state of the weight, and thus the measurement error is generated.
Disclosure of Invention
The invention aims to provide a slope self-adaptive device for a deflectometer and a control method thereof, which can solve the defects of the prior art and facilitate the accurate control of load when weights are in an inclined state.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows.
The utility model provides a slope self-adaptation device for deflectometer, the novel nipple rectifier comprises a cylindrical shel, install the weight in the barrel, the hydraulic lifting mechanism who is used for promoting the weight is installed at the barrel top, a plurality of leading wheel is installed along the axial of barrel to the inside wall of barrel, be provided with the guide way with leading wheel roll joint on the weight, a plurality of gear is installed along the axial of barrel to the inside wall of barrel of leading wheel subtend, be provided with on the weight with gear engagement's rack, every gear connection has an encoder, every gear is connected with a servo motor through the clutch, the controller respectively with hydraulic lifting mechanism, encoder and servo motor communication are connected.
Preferably, the middle of the guide groove is provided with a mounting groove, the bottom of the mounting groove is provided with a plurality of spring mounting holes, a rubber strip is arranged in the mounting groove, the bottom surface of the rubber strip is provided with spring clamping grooves in one-to-one correspondence with the spring mounting holes, one end of the spring is clamped in the spring clamping grooves, the other end of the spring is clamped in the spring mounting holes, and the guide wheel is provided with an annular part which is in contact with the rubber strip.
Preferably, oil storage tanks are arranged on two sides of the guide wheel, and a phenolic resin fiber filter element is fixed at one end of each oil storage tank close to the outer side of the guide wheel.
Preferably, a plurality of tooth valleys are uniformly arranged on the rack, rubber inclined plane parts are fixed on two sides of the top of each tooth valley, and arc surface parts are arranged at the bottom of each tooth valley.
A control method for the slope adaptive device of the deflectometer as described above, = includes the following steps:
A. calculating the weight of the weight according to the inclination angle of the road surface and the impact force required by the detection of the road surface, and selecting the weight with the corresponding weight to be installed in the barrel;
B. the hydraulic lifting mechanism lifts the weight to the top of the cylinder, and when a starting instruction of the controller is received, the hydraulic lifting mechanism releases the weight, and the weight slides downwards along the guide wheel;
C. the gear is driven by the weight to rotate, and the controller detects the real-time speed of the weight through the encoder;
D. the real-time speed of the weight is compared with the corresponding preset speed, when the real-time speed is smaller than the preset speed, the controller controls the corresponding clutch to be combined, and meanwhile, the corresponding servo motor driving gear is started to accelerate the weight.
Preferably, in step D, when the clutch needs to be engaged, the clutch is engaged when the weight does not contact the corresponding gear, and the rotational speed of the gear is preloaded using the servo motor according to the real-time speed of the weight.
Preferably, in step D, at least one of the gears in contact with the weight has its corresponding clutch in an off state.
Preferably, in step D, the controller performs closed-loop control on the servo motor by using a PID algorithm.
Adopt the beneficial effect that above-mentioned technical scheme brought to lie in: according to the invention, the guide wheel is arranged, so that the sliding friction between the weight and the barrel is changed into the rolling friction between the weight and the guide wheel, and the friction force in the falling process of the weight in an inclined state is greatly reduced. And meanwhile, the falling speed of the weight is monitored and adjusted in real time by using the gear mechanism, so that the falling load of the weight is equal to the preset load. The rubber strip in the guide groove is used for improving the sliding friction force between the guide wheel and the guide groove, so that the guide wheel is prevented from sliding with the guide groove in the rolling process in the guide groove. The mounting structure of rubber strip can be according to weight, falling speed and inclination, the rubber strip of different hardness and thickness and the spring of different length and elastic coefficient of quick replacement. The oil storage groove is used for containing lubricating grease, so that the contact surface of the side surface of the guide wheel and the guide groove is lubricated. The tooth valley of the special optimized structure can reduce the impact force in the gear meshing process, so that the smoothness of the weight moving on the guide wheel is further improved.
Drawings
FIG. 1 is a block diagram of one embodiment of the present invention.
Fig. 2 is a structural view of a gear driving mechanism according to an embodiment of the present invention.
Fig. 3 is a structural view of a guide groove in an embodiment of the present invention.
Fig. 4 is a block diagram of a guide wheel in an embodiment of the present invention.
Fig. 5 is a structural view of a rack gear in an embodiment of the present invention.
Detailed Description
Referring to fig. 1-5, a specific embodiment of the invention includes a cylinder 1, a weight 2 is installed in the cylinder 1, a hydraulic lifting mechanism 3 for lifting the weight 2 is installed at the top of the cylinder 1, a plurality of guide wheels 4 are installed on the inner side wall of the cylinder 1 along the axial direction of the cylinder 1, a guide groove 5 in rolling and clamping connection with the guide wheels 4 is arranged on the weight 2, a plurality of gears 6 are installed on the inner side wall of the cylinder 1 opposite to the guide wheels 4 along the axial direction of the cylinder 1, a rack 7 meshed with the gears 6 is arranged on the weight 2, each gear 6 is connected with an encoder 8, each gear 6 is connected with a servo motor 10 through a clutch 9, and a controller 11 is respectively in communication connection with the hydraulic lifting mechanism 3, the encoder 8 and the servo motor 10. The middle of 5 guide slots is provided with mounting groove 12, and 12 bottoms of mounting groove are provided with a plurality of spring mounting hole 13, are provided with rubber strip 14 in the mounting groove 12, and the bottom surface of rubber strip 14 is provided with spring clamping groove 15 with 13 one-to-one of spring mounting hole, and 16 one end joints of spring are in spring clamping groove 15, and 16 other end joints of spring are in spring mounting hole 13, are provided with the annular portion 17 that contacts with rubber strip 14 on the leading wheel 4. Oil storage tanks 18 are arranged on two sides of the guide wheel 4, and a phenolic resin fiber filter element 19 is fixed at one end of each oil storage tank 18 close to the outer side of the guide wheel 4. A plurality of tooth valleys 20 are uniformly arranged on the rack 7, rubber inclined plane parts 21 are fixed on two sides of the tops of the tooth valleys 20, and arc surface parts 22 are arranged at the bottoms of the tooth valleys 20.
The control method of the slope adaptive device for the deflectometer comprises the following steps:
A. calculating the weight of the weight 2 according to the inclination angle of the road surface and the impact force required by the detection of the road surface, and selecting the weight 2 with the corresponding weight to be installed in the cylinder 1;
B. the hydraulic lifting mechanism 3 lifts the weight 2 to the top of the barrel 1, and after receiving a starting instruction of the controller 11, the hydraulic lifting mechanism 3 releases the weight 2, and the weight 2 slides downwards along the guide wheel 4;
C. the gear 6 is driven by the weight 2 to rotate, and the controller 11 detects the real-time speed of the weight 2 through the encoder 8;
D. the real-time speed of the weight is compared with the corresponding preset speed, when the real-time speed is lower than the preset speed, the controller 11 controls the corresponding clutch 9 to be combined, and meanwhile, the corresponding servo motor 10 is started to drive the gear 6 to accelerate the weight 2.
In step D, when the clutch 9 needs to be combined, the clutch 9 is combined when the weight 2 does not contact the corresponding gear 6, and the rotating speed of the gear 6 is preloaded by using the servo motor 10 according to the real-time speed of the weight 2. At least one clutch 9 corresponding to the gear 6 is in an off state in the gears 6 contacting with the weight 2. The controller 11 performs closed-loop control on the servo motor 10 by adopting a PID algorithm.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A slope self-adaptation device for deflectometer which characterized in that: comprises a cylinder body (1), weights (2) are installed in the cylinder body (1), a hydraulic lifting mechanism (3) used for lifting the weights (2) is installed at the top of the cylinder body (1), a plurality of guide wheels (4) are installed on the inner side wall of the cylinder body (1) along the axial direction of the cylinder body (1), a guide groove (5) in rolling clamping connection with the guide wheels (4) is arranged on the weights (2), a plurality of gears (6) are installed on the inner side wall of the cylinder body (1) opposite to the guide wheels (4) along the axial direction of the cylinder body (1), racks (7) meshed with the gears (6) are arranged on the weights (2), each gear (6) is connected with an encoder (8), each gear (6) is connected with a servo motor (10) through a clutch (9), and a controller (11) is respectively connected with the hydraulic lifting mechanism (3), the encoder (8) is in communication connection with the servo motor (10).
2. The slope adaptive apparatus for a deflectometer according to claim 1, wherein: be provided with mounting groove (12) in the middle of guide way (5), mounting groove (12) bottom is provided with a plurality of spring mounting hole (13), is provided with rubber strip (14) in mounting groove (12), and the bottom surface of rubber strip (14) is provided with spring clamping groove (15) with spring mounting hole (13) one-to-one, and spring (16) one end joint is in spring clamping groove (15), and spring (16) other end joint is in spring mounting hole (13), is provided with annular portion (17) that contact with rubber strip (14) on leading wheel (4).
3. The slope adaptive apparatus for a deflectometer according to claim 2, wherein: oil storage tanks (18) are arranged on two sides of the guide wheel (4), and phenolic resin fiber filter elements (19) are fixed at one ends, close to the outer side of the guide wheel (4), of the oil storage tanks (18).
4. The slope adaptive apparatus for a deflectometer according to claim 2, wherein: a plurality of tooth valleys (20) are uniformly arranged on the rack (7), rubber inclined plane parts (21) are fixed on two sides of the tops of the tooth valleys (20), and arc surface parts (22) are arranged at the bottoms of the tooth valleys (20).
5. A control method of the slope adaptive device for the deflectometer according to any one of claims 1-4, characterized by comprising the steps of:
A. calculating the weight of the weight (2) according to the inclination angle of the road surface and the impact force required by the detection of the road surface, and selecting the weight (2) with the corresponding weight to be installed in the cylinder (1);
B. the hydraulic lifting mechanism (3) lifts the weight (2) to the top of the barrel (1), and after receiving a starting instruction of the controller (11), the hydraulic lifting mechanism (3) releases the weight (2), and the weight (2) slides downwards along the guide wheel (4);
C. the gear (6) is driven by the weight (2) to rotate, and the controller (11) detects the real-time speed of the weight (2) through the encoder (8);
D. the real-time speed of the weight is compared with the corresponding preset speed, when the real-time speed is smaller than the preset speed, the controller (11) controls the corresponding clutch (9) to be combined, and meanwhile the corresponding servo motor (10) is started to drive the gear (6) to accelerate the weight (2).
6. The control method for the slope adaptive device for the deflectometer according to claim 5, wherein: and D, when the clutch (9) is required to be combined, combining the clutch (9) when the weight (2) does not contact the corresponding gear (6), and preloading the rotating speed of the gear (6) by using the servo motor (10) according to the real-time speed of the weight (2).
7. The control method for the slope adaptive device for the deflectometer according to claim 6, wherein: in the step D, at least one clutch (9) corresponding to the gear (6) in the gears (6) in contact with the weights (2) is in a disconnected state.
8. The control method for the slope adaptive device for the deflectometer according to claim 5, wherein: and D, the controller (11) adopts a PID algorithm to carry out closed-loop control on the servo motor (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111183836.6A CN113802441B (en) | 2021-10-11 | 2021-10-11 | Slope self-adaptive device for deflectometer and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111183836.6A CN113802441B (en) | 2021-10-11 | 2021-10-11 | Slope self-adaptive device for deflectometer and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113802441A true CN113802441A (en) | 2021-12-17 |
| CN113802441B CN113802441B (en) | 2022-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111183836.6A Active CN113802441B (en) | 2021-10-11 | 2021-10-11 | Slope self-adaptive device for deflectometer and control method thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107144308A (en) * | 2017-07-07 | 2017-09-08 | 宁波如意股份有限公司 | A kind of displacement and speed detector and its detection method |
| WO2017179770A1 (en) * | 2016-04-12 | 2017-10-19 | 성균관대학교 산학협력단 | Torsion testing apparatus |
| CN207775675U (en) * | 2017-12-19 | 2018-08-28 | 武昌理工学院 | A kind of subgrade and pavement deflection testing device |
| US20180348107A1 (en) * | 2015-12-16 | 2018-12-06 | Dynatest International A/S | A falling weight deflectometer |
| CN208795589U (en) * | 2018-08-15 | 2019-04-26 | 尹承尧 | A kind of Project Supervising detection device |
| CN208917650U (en) * | 2018-08-07 | 2019-05-31 | 云南省建设工程质量检测中心有限公司 | A kind of intelligence pavement benkelman beams deflectometer |
| CN209387431U (en) * | 2018-12-23 | 2019-09-13 | 北京今谷神箭测控技术研究所 | Vehicle-mounted drop hammer deflection meter |
| CN210014976U (en) * | 2019-05-20 | 2020-02-04 | 四川正达检测技术有限责任公司 | Automatic counter of drop hammer type deflectometer |
-
2021
- 2021-10-11 CN CN202111183836.6A patent/CN113802441B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180348107A1 (en) * | 2015-12-16 | 2018-12-06 | Dynatest International A/S | A falling weight deflectometer |
| WO2017179770A1 (en) * | 2016-04-12 | 2017-10-19 | 성균관대학교 산학협력단 | Torsion testing apparatus |
| CN107144308A (en) * | 2017-07-07 | 2017-09-08 | 宁波如意股份有限公司 | A kind of displacement and speed detector and its detection method |
| CN207775675U (en) * | 2017-12-19 | 2018-08-28 | 武昌理工学院 | A kind of subgrade and pavement deflection testing device |
| CN208917650U (en) * | 2018-08-07 | 2019-05-31 | 云南省建设工程质量检测中心有限公司 | A kind of intelligence pavement benkelman beams deflectometer |
| CN208795589U (en) * | 2018-08-15 | 2019-04-26 | 尹承尧 | A kind of Project Supervising detection device |
| CN209387431U (en) * | 2018-12-23 | 2019-09-13 | 北京今谷神箭测控技术研究所 | Vehicle-mounted drop hammer deflection meter |
| CN210014976U (en) * | 2019-05-20 | 2020-02-04 | 四川正达检测技术有限责任公司 | Automatic counter of drop hammer type deflectometer |
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| CN113802441B (en) | 2022-12-09 |
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