CN112342880A - Laser scanning vehicle for detecting surface roughness of track paving layer - Google Patents
Laser scanning vehicle for detecting surface roughness of track paving layer Download PDFInfo
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- CN112342880A CN112342880A CN202110005082.9A CN202110005082A CN112342880A CN 112342880 A CN112342880 A CN 112342880A CN 202110005082 A CN202110005082 A CN 202110005082A CN 112342880 A CN112342880 A CN 112342880A
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- 230000003746 surface roughness Effects 0.000 title claims abstract description 23
- 238000006073 displacement reaction Methods 0.000 claims abstract description 65
- 230000007480 spreading Effects 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 claims abstract description 6
- 230000001681 protective effect Effects 0.000 claims description 20
- 230000009467 reduction Effects 0.000 claims description 12
- 238000013016 damping Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 230000000712 assembly Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims 1
- 239000006096 absorbing agent Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 208000012260 Accidental injury Diseases 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B27/00—Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers
- E01B27/02—Placing the ballast; Making ballastway; Redistributing ballasting material; Machines or devices therefor; Levelling means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
- G01B11/303—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces using photoelectric detection means
Abstract
The invention provides a laser scanning vehicle for detecting the surface roughness of a track paving layer, which comprises a vehicle body, a box body, a scanning assembly and a scanning driving assembly, wherein the box body is provided with a box body; the box body is connected with a bottom plate of the vehicle body and is used for mounting a scanning assembly; the scanning assembly is used for detecting the surface roughness of the track spreading layer; the scanning driving assembly comprises a horizontal displacement driving assembly, a vertical displacement driving assembly and a scanning displacement driving assembly, wherein the horizontal displacement driving assembly, the vertical displacement driving assembly and the scanning displacement driving assembly are used for driving the scanning assembly to displace. According to the invention, the scanning assembly for detecting the surface roughness of the track paving layer is arranged on the vehicle body, the scanning driving assembly for driving the scanning assembly is arranged on the vehicle body, so that the automatic control of the scanning assembly is realized, and the relative position between the scanning assembly and the surface of the track paving layer is adjusted, so that the accurate detection of the scanning assembly on the surface roughness of the track paving layer is effectively ensured.
Description
Technical Field
The invention belongs to the technical field of rail transit, and particularly relates to a laser scanning vehicle for detecting the surface roughness of a track paving layer.
Background
The rapid development of the rail transit industry not only drives the economic rapid promotion, but also greatly improves the life quality of people. In the field of track engineering, ballastless tracks are applied in a large scale with the characteristics of high smoothness, high stability and less maintenance, so that the fine research on the performance of the ballastless tracks becomes the key point in the field of track engineering.
The novel ballastless track structure system comprises components such as a track slab, a vibration damping cushion layer, a concrete spreading layer and the like. Along with the increase of the surface roughness of the paving layer of the slab ballastless track, under the action of train load, the surface tension borne by the track slab can be gradually increased, and when the roughness reaches a certain value, the surface tension can have a great influence on the track structure. Therefore, in the process of casting a spreading layer of a track plate on site, the surface roughness of the spreading layer needs to be strictly controlled, the conventional roughness measuring device is low in working efficiency in the using process and is difficult to meet the rapid intelligent progress of railway construction, and therefore a plate-type ballastless track performance evaluation method and testing device based on the spreading layer surface roughness test are urgently needed for accurately monitoring the surface roughness of the spreading layer of the plate-type ballastless track so as to improve the construction quality and serve the track traffic industry of China.
Disclosure of Invention
The invention aims to provide an intelligent laser scanning vehicle for detecting the surface roughness of a track paving layer.
In order to achieve the aim, the invention provides a laser scanning vehicle for detecting the surface roughness of a track paving layer, which comprises a vehicle body, a box body, a scanning assembly and a scanning driving assembly, wherein the box body is provided with a box body;
the box body is connected with a bottom plate of the vehicle body and is used for mounting a scanning assembly;
preferably, at least one group of second vibration reduction assemblies is arranged between the box body and the bottom plate, each second vibration reduction assembly comprises a loop bar and a second spring, two ends of each loop bar are respectively connected with the box body and the bottom plate in a fixed and movable mode, and the loop bars are sleeved with the second springs.
The scanning assembly is used for detecting the surface roughness of the track spreading layer;
preferably, the scanning assembly is provided as a laser scanning sensor.
The scanning driving assembly comprises a horizontal displacement driving assembly, a vertical displacement driving assembly and a scanning displacement driving assembly, and the horizontal displacement driving assembly is used for driving the scanning assembly to perform horizontal displacement on the vehicle body so as to increase the detection range of the scanning assembly; the vertical displacement driving assembly is used for driving the scanning assembly to perform vertical displacement, and the scanning assembly is more accurately detected by adjusting the distance between the scanning assembly and the surface of the track paving layer; the scanning displacement driving assembly is used for adjusting the relative position of the scanning assembly and the surface of the track paving layer;
preferably, the horizontal displacement driving assembly comprises a motor and a screw rod, the motor is connected with the box body, and the driving end of the motor is connected with the screw rod;
preferably, the vertical displacement driving assembly comprises a first fixing plate, a supporting frame and a first telescopic piece, wherein the first fixing plate is connected with the screw rod and is driven by the motor to displace on the screw rod; the support frame is connected with the first fixing plate and used for supporting the first telescopic piece; one end of the first telescopic piece is connected with the support frame, and the other end of the first telescopic piece is connected with the scanning displacement driving assembly and is used for driving the scanning displacement driving assembly to perform displacement in the vertical direction;
preferably, the scanning displacement driving assembly comprises a second fixed plate and a second telescopic member, and the second fixed plate is connected to one end of the first telescopic member; one end of the second telescopic piece is connected with the second fixing plate, and the other end of the second telescopic piece is connected with the scanning assembly and used for driving the scanning assembly to move.
As a further scheme of the invention: at least one group of first vibration damping assemblies are further arranged between the supporting frame and the first fixing plate, each first vibration damping assembly comprises a mounting box, a sliding rod, a sleeve block and a first spring, the mounting box is arranged on the first fixing plate, the sliding rods are arranged in the mounting boxes, and two ends of each sliding rod are respectively connected with two oppositely arranged end faces of the mounting boxes; the sleeve block is sleeved on the sliding rod and is connected with the supporting frame; the first spring is provided with two pieces, the two pieces are respectively arranged between the sleeve block and the mounting box, and the sleeve block drives the supporting frame to slide on the sliding rod to realize vibration reduction.
As a further scheme of the invention: the supporting frame comprises a fixing frame, a fixing ring, a supporting block and two inclined supporting rods; the fixing frame comprises two vertical rods and two horizontal rods, and two ends of each horizontal rod are respectively connected with the vertical rods to form a fixing frame
The lower end of the vertical rod is connected with a sleeve block of the first vibration reduction assembly respectively, so that vibration reduction of the fixing frame in the operation process is realized;
preferably, the fixing ring and the supporting block are respectively arranged on the horizontal rod in a penetrating manner, and the fixing ring and the supporting block are simultaneously connected with one end of the first telescopic piece and are used for supporting the first telescopic piece;
preferably, one end of each of the two diagonal support rods is connected with the fixing ring respectively, so as to provide further supporting force for the fixing ring; the other end of the diagonal brace is connected with the sleeve block of the first vibration reduction assembly respectively, and vibration reduction of the diagonal brace in the operation process is achieved.
As a further scheme of the invention: the horizontal displacement drive assembly is further provided with two limiting buffer assemblies, the two limiting buffer assemblies are arranged along the displacement direction of the screw rod and are respectively arranged at the two ends of the screw rod, and the two limiting buffer assemblies are used for limiting the displacement range of the vertical displacement drive assembly on the screw rod.
As a further scheme of the invention: the first extensible member and the second extensible member are arranged to be one of an air cylinder, an oil cylinder or an extensible rod.
As a further scheme of the invention: the box body is also provided with a receiving assembly for receiving the scanning assembly, the vertical displacement driving assembly and the scanning displacement driving assembly; the storage assembly comprises a protective cover, a hydraulic rod, a rotating block and a cover plate, and the protective cover is connected with the box body; one end of the hydraulic rod is connected with the protective cover, and the other end of the hydraulic rod is connected with the rotating block; the cover plate is connected with the protective cover through a rotating piece, the cover plate is connected with a rotating block through a contact surface of the protective cover, and the cover plate is controlled to be opened or closed relative to the protective cover through the drive of the hydraulic rod.
As a further scheme of the invention: the box body is also provided with a ladder assembly, the ladder assembly is arranged in a plane groove arranged on the rear side surface of the vehicle body and comprises a fixed ladder, a fixed rod, a sliding block, a slide and a pull rod, the fixed ladder is connected with the box body through a rotating seat, and the lower end of the fixed ladder is provided with the fixed rod; the fixed rod is sleeved with a sliding block capable of sliding on the fixed rod; the slide is arranged on the sliding block.
The technical scheme of the invention has the following beneficial effects:
(1) according to the invention, the scanning assembly for detecting the surface roughness of the track paving layer is arranged on the vehicle body, the scanning driving assembly for driving the scanning assembly is arranged on the vehicle body, so that the automatic control of the scanning assembly is realized, and the relative position between the scanning assembly and the surface of the track paving layer is adjusted, so that the accurate detection of the scanning assembly on the surface roughness of the track paving layer is effectively ensured.
(2) The vibration reduction device is arranged on the scanning driving assembly, so that the stability of the scanning assembly in the operation process is effectively ensured.
(3) According to the invention, the support frame is set to be a structure with a vertical support and an inclined support, so that the support strength of the scanning assembly is effectively ensured.
(4) According to the invention, the limiting buffer assemblies are arranged at the two ends of the horizontal displacement driving assembly so as to limit the scanning assembly in the horizontal displacement process.
(5) According to the invention, the second springs on the ground sleeve rods are arranged on the periphery of the bottom of the box body, the elasticity of the springs is utilized to reduce the vertical vibration of the vehicle body during running, the vibration absorber arranged at the bottom of the first fixed upper fixing frame is utilized to reduce the front-back and left-right vibration of the vehicle body during running, and the three-dimensional vibration attenuation design is adopted, so that the whole stability of the device is better when the device is actually used, and even if the vehicle body vibrates under the condition of uneven road surface, the internal components of the device cannot synchronously vibrate, and the condition of inaccurate measured data cannot be caused.
(6) According to the invention, the protective cover is arranged on the roof, the hydraulic rod can be used for controlling the cover plate of the protective cover to open and close, the motor is used for driving the screw rod to rotate, the two-dimensional laser scanning sensor arranged on the upper part of the moving block is driven to move back and forth by the external threads of the screw rod under the guidance of the guide rods on the left sliding rail and the right sliding rail, the size of the equipment is reduced by the first telescopic rod and the second telescopic rod, the equipment slides into the protective cover and is covered by the cover plate, when the equipment is not used, the detection equipment does not need to be dismounted and is directly sent into the protective cover for protection, the equipment is protected, time and labor are saved, the roof working is not needed except.
(7) According to the invention, the plane groove is formed in the rear side face of the vehicle body, the fixed ladder is hidden in the groove, the slide connected to the slide can freely stretch out and draw back by using the upper slide block through the fixed rods arranged in the grooves formed in the support rods on two sides of the lower part of the fixed ladder, the bayonet lock of the pull rod on the guide rod at the bottom can be clamped into the clamping groove when not used, the bayonet lock is propped against by using the third spring, the slide is contracted in the plane groove, the slide can be pulled out by reverse operation, then the slide block slides to the bottom of the fixed rod, personnel can climb up the vehicle roof, the hidden ladder does not increase the volume of the vehicle body, the vehicle body is more attractive, meanwhile, accidental injuries such as collision and the.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is an axial view of the overall structure of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1 according to the present invention;
FIG. 3 is an enlarged view of the invention at B in FIG. 1;
FIG. 4 is a schematic front view of the overall structure of the present invention;
FIG. 5 is an enlarged view of the invention at C of FIG. 4;
fig. 6 is an enlarged view of the invention at D in fig. 4.
Wherein:
1: bottom plate, 2: loop bar, 3: second spring, 4: a box body and 5: rotating a seat, 6: fixed ladder, 9: slide, 10: pull rod, 11: guide bar, 12: third spring, 13: bayonet, 14: card slot, 15: a motor, 16: screw, 17: protective cover, 18: hydraulic rod, 19: turning block, 20: cover plate, 21: baffle, 22: buffer, 24: first fixing plate, 26: slide rail, 27: damper, 28: slide bar, 29: nest block, 30: first spring, 31: a fixing frame, 32: supporting block, 33: first telescopic member, 34: fixing ring, 35: second fixing plate, 36: second telescopic member, 37: two-dimensional laser scanning sensor.
Detailed Description
Embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims.
In order to make the aforementioned objects, features, advantages, and the like of the present invention more clearly understandable, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the drawings of the present invention are simplified and are not to precise scale, and are provided for convenience and clarity in assisting the description of the embodiments of the present invention; the several references in this disclosure are not limited to the particular numbers in the examples of the figures; the directions or positional relationships indicated by ' front ' middle, ' rear ' left ', right ', upper ', lower ', top ', bottom ', middle ', etc. in the present invention are based on the directions or positional relationships shown in the drawings of the present invention, and do not indicate or imply that the devices or components referred to must have a specific direction, nor should be construed as limiting the present invention.
Referring to fig. 1 to 6, the laser scanning vehicle for detecting the surface roughness of a track paving layer provided by the invention comprises a vehicle body, a box body 4, a horizontal displacement driving assembly, a vertical displacement driving assembly, a scanning displacement driving assembly, a storage assembly, a ladder assembly and a two-dimensional laser scanning sensor 37;
be equipped with sliding connection's a plurality of loop bars 2 and the second spring 3 of cover on loop bar 2 between the bottom plate 1 of box 4 and automobile body, the upper portion sliding connection of loop bar 2 is on box 4, lower extreme and bottom plate 1 fixed connection to realize the damping between box 4 and the bottom plate 1 through second spring 3, make box 4 steady at the operation in-process of automobile body.
The horizontal displacement driving assembly comprises a motor 15, a screw rod 16 and a slide rail 26, the motor 15 is mounted on the top surface of the box body 4 through a motor base and is connected with the screw rod 16 through a coupler, and a nut of the screw rod 16 is connected with a first fixing plate 24 of the vertical displacement driving assembly so as to drive the vertical displacement driving assembly to perform displacement in the horizontal direction;
preferably, the horizontal displacement driving assembly further comprises a slide rail 26, the slide rail 26 is arranged in parallel with the screw 16, and a slide block of the slide rail is connected with the first fixing plate 24 to provide guidance for the displacement of the vertical displacement driving assembly;
preferably, the horizontal displacement assembly further comprises a buffer 22 and a baffle 21, wherein the baffle 21 is mounted on the box body 4 and is arranged at one end of the screw 16 in the nut running direction; the buffer 22 is provided with two pieces, which are respectively arranged on the baffle 21 and the protective cover 17, and used for limiting the operation range of the first fixing plate 24.
The vertical displacement driving component comprises a first fixing plate 24, a shock absorber 27, a fixing frame 31, a supporting block 32, a first telescopic part 33 and a fixing ring 34, wherein the fixing frame 31 comprises two vertical rods and two horizontal rods, the two vertical rods are arranged in parallel and are respectively and simultaneously connected with two ends of the two horizontal rods to form a whole
A shape structure; the supporting block 32 and the fixing ring 34 are respectively installed on two horizontal rods in a penetrating manner and are used for being connected with one end of the first telescopic part 33 at the same time, and two symmetrically arranged inclined supporting rods are further arranged on the fixing ring 34 so as to fix the first telescopic part 33; the four vibration dampers 27 are preferably arranged and are respectively mounted on the upper surface of the first fixing plate 24 and are respectively connected with the lower end of the fixing frame 31 and the lower ends of the two inclined supporting rods, so that vibration damping is realized on the first telescopic part 33 in the operation process, and the operation stability of the first telescopic part 33 is ensured;
preferably, the vibration absorber 27 includes a mounting box, a sliding rod 28, a sleeve block 29 and a first spring 30, the mounting box is disposed on the first fixing plate 24, the sliding rod 28 is disposed in the mounting box, and two ends of the sliding rod 28 are respectively connected with two oppositely disposed end faces of the mounting box; the sleeve block 29 is sleeved on the sliding rod 28 and is connected with the supporting frame; the first spring 30 is provided with two pieces which are respectively arranged between the sleeve block 29 and the mounting box, and the sleeve block 29 drives the support frame to slide on the slide rod 28 to realize vibration reduction.
Scanning displacement drive assembly includes second extensible member 36 and installs the second fixed plate 35 on the first extensible member 33 other end, and the one end of second extensible member 36 is installed on second fixed plate 35, and the other end is connected with two-dimensional laser scanning sensor 37 to drive two-dimensional laser scanning sensor 37 and carry out displacement of minim scope, thereby realize two-dimensional laser scanning sensor 37's accurate location.
The containing assembly comprises a protective cover 17, a hydraulic rod 18, a rotating block 19 and a cover plate 20, the protective cover 17 is of a storable cavity structure, and the inner side surfaces of two side plates of the protective cover are respectively connected with one end of the hydraulic rod 18 and used for fixing the hydraulic rod 18; the two rotating blocks 19 are respectively arranged on the cover plate 20 and connected with the other end of the hydraulic rod 18, so that the cover plate 20 is driven by the hydraulic rod 18; the upper end surface of the cover plate 20 is connected to the protective cover 17 by a hinge, so that the cover plate 20 can be opened or closed with respect to the protective cover 17 by the driving of the hydraulic rod 18.
The ladder assembly is arranged in a plane groove on the rear side surface of the vehicle body and comprises a fixed ladder 6, a fixed rod, a sliding block and a slide 9, the upper end of the fixed ladder 6 is connected with a rear side plate of the box body 4 through a rotating seat 5, and the fixed rods are welded on the lower end surfaces of the supporting rods on the two sides of the fixed ladder respectively; the fixed rod extends downwards, and a sliding block is movably arranged on the fixed rod and can slide up and down along the fixed rod; the slide 9 is welded on the sliding block so as to realize the extension or the accommodation of the slide 9 through the sliding of the sliding block on the fixed rod; when the slide 9 needs to be stored, the upper end of the slide 9 is arranged in parallel with the fixed rod through the sliding of the sliding block, and the lower end of the slide 9 is fixed through clamping a clamping pin 13 arranged at the lower end of the slide 9 in a clamping groove 14 arranged on the box body 4; when the slide 9 needs to be put down, the bayonet 13 is pulled out of the bayonet 14, and the lower end of the slide 9 extends to the ground surface under the sliding of the sliding block so that an operator can climb;
preferably, in order to facilitate the operation of the bayonet 13, the upper end of the bayonet 13 is also connected with a pull rod 10 which is convenient for an operator to operate;
preferably, in order to limit the movement range of the bayonet 13, the box body 4 is further provided with a limiting groove, a guide rod 11 with an upper end and a lower end mounted on the limiting groove and a third spring 12 sleeved on the guide rod 11 are arranged in the limiting groove, the pull rod 10 is arranged in the limiting groove, the guide rod 11 is arranged on the pull rod 10 in a penetrating manner, the third spring 12 is arranged between the pull rod 10 and the upper surface of the limiting groove, and the automatic reset of the pull rod 10 is realized through the elasticity of the third spring 12; one end of the locking pin 13 is disposed on the limiting groove and can extend into the locking groove 14.
The detection method comprises the following specific steps:
the method comprises the following steps: assembling a laser scanning vehicle for detecting the surface roughness of the track paving layer;
step two: driving the vehicle body to a corresponding position where the surface roughness needs to be detected;
step three: starting a scanning displacement driving component, adjusting a laser scanning sensor to extend out of the carriage, and preparing for scanning;
step four: the vertical displacement driving assembly is adjusted according to the position of the surface roughness to be detected, so that the laser scanning sensor can clearly scan;
step five: and controlling the horizontal displacement driving device to enable the laser scanning sensor to scan the position of the surface roughness to be detected at a constant speed.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a laser scanning car that is used for track paver surface roughness to detect which characterized in that: comprises a vehicle body, a box body (4), a scanning component and a scanning driving component;
the box body (4) is connected with a bottom plate (1) of the vehicle body and is used for mounting a scanning assembly;
the scanning assembly is used for detecting the surface roughness of the track spreading layer;
the scanning driving assembly comprises a horizontal displacement driving assembly, a vertical displacement driving assembly and a scanning displacement driving assembly, and the horizontal displacement driving assembly is used for driving the scanning assembly to perform horizontal displacement on the vehicle body so as to increase the detection range of the scanning assembly; the vertical displacement driving assembly is used for driving the scanning assembly to perform vertical displacement, and the scanning assembly is more accurately detected by adjusting the distance between the scanning assembly and the surface of the track paving layer; the scanning displacement driving assembly is used for adjusting the relative position of the scanning assembly and the surface of the track paving layer.
2. The laser scanning vehicle of claim 1, wherein: the horizontal displacement driving assembly comprises a motor (15) and a screw rod (16), the motor (15) is connected with the box body (4), and the driving end of the motor is connected with the screw rod (16);
the vertical displacement driving assembly comprises a first fixing plate (24), a supporting frame and a first telescopic piece (33), wherein the first fixing plate (24) is connected with the screw rod (16) and is driven by the motor (15) to displace on the screw rod (16); the supporting frame is connected with the first fixing plate (24) and is used for supporting the first telescopic piece (33); one end of the first telescopic piece (33) is connected with the supporting frame, and the other end of the first telescopic piece is connected with the scanning displacement driving assembly and used for driving the scanning displacement driving assembly to perform displacement in the vertical direction;
the scanning displacement driving assembly comprises a second fixing plate (35) and a second telescopic piece (36), wherein the second fixing plate (35) is connected to one end of the first telescopic piece (33); one end of the second telescopic piece (36) is connected with the second fixing plate (35), and the other end of the second telescopic piece is connected with the scanning assembly and used for driving the scanning assembly to move.
3. The laser scanning vehicle of claim 2, wherein: at least one group of first vibration damping assemblies are further arranged between the supporting frame and the first fixing plate (24), each first vibration damping assembly comprises a mounting box, a sliding rod (28), a sleeve block (29) and a first spring (30), the mounting box is arranged on the first fixing plate (24), the sliding rods (28) are arranged in the mounting box, and two ends of each sliding rod are respectively connected with two oppositely arranged end faces of the mounting box; the sleeve block (29) is sleeved on the sliding rod (28) and is connected with the supporting frame; the first spring (30) is provided with two pieces which are respectively arranged between the sleeve block (29) and the mounting box, and the sleeve block (29) drives the support frame to slide on the sliding rod (28) to realize vibration reduction.
4. The laser scanning vehicle of claim 3, wherein: the supporting frame comprises a fixing frame (31), a fixing ring (34), a supporting block (32) and two inclined supporting rods;
the fixing frame (31) comprises two vertical rods and two horizontal rods, and two ends of each horizontal rod are respectively connected with the vertical rods to form a whole
The lower end of the vertical rod is connected with a sleeve block (29) of the first vibration reduction assembly respectively, so that vibration reduction of the fixing frame (31) in the operation process is realized;
the fixing ring (34) and the supporting block (32) are respectively arranged on the horizontal rod in a penetrating mode, and the fixing ring (34) and the supporting block (32) are simultaneously connected with one end of the first telescopic piece (33) and used for supporting the first telescopic piece (33);
one ends of the two inclined supporting rods are respectively connected with the fixing ring (34) and used for providing further supporting force for the fixing ring (34); the other end of the inclined strut is connected with a sleeve block (29) of the first vibration damping assembly respectively, and vibration damping of the inclined strut in the operation process is achieved.
5. The laser scanning vehicle of claim 2, wherein: the horizontal displacement driving assembly is further provided with two limiting buffer assemblies, the two limiting buffer assemblies are arranged along the displacement direction of the screw rod (16) and are respectively arranged at the two ends of the screw rod (16) and used for limiting the displacement range of the vertical displacement driving assembly on the screw rod (16).
6. The laser scanning vehicle of claim 2, wherein: the first telescopic piece (33) and the second telescopic piece (36) are arranged to be one of an air cylinder, an oil cylinder or a telescopic rod.
7. The laser scanning vehicle of claim 2, wherein: the scanning component is arranged as a laser scanning sensor.
8. The laser scanning vehicle of any one of claims 1-7, wherein: be equipped with at least a set of second damping subassembly between box (4) and bottom plate (1), second damping subassembly includes loop bar (2) and second spring (3), the both ends of loop bar (2) adopt the mode of a fixed activity respectively to be connected with box (4) and bottom plate (1), second spring (3) cover is located on loop bar (2).
9. The laser scanning vehicle of claim 8, wherein: the box body (4) is also provided with a receiving assembly for receiving the scanning assembly, the vertical displacement driving assembly and the scanning displacement driving assembly;
the storage assembly comprises a protective cover (17), a hydraulic rod (18), a rotating block (19) and a cover plate (20), and the protective cover (17) is connected with the box body (4); one end of the hydraulic rod (18) is connected with the protective cover (17), and the other end of the hydraulic rod is connected with a rotating block (19); the cover plate (20) is connected with the protection cover (17) through a rotating piece, the contact surface of the cover plate (20) and the protection cover (17) is connected with the rotating block (19), and the cover plate (20) is controlled to be opened or closed relative to the protection cover (17) through the driving of the hydraulic rod (18).
10. The laser scanning vehicle of claim 9, wherein: the ladder stand assembly is arranged in a plane groove formed in the rear side face of the vehicle body and comprises a fixed ladder (6), a fixed rod, a sliding block, a sliding board (9) and a pull rod (10), the fixed ladder (6) is connected with the box body (4) through a rotating seat (5), and the lower end of the fixed ladder is provided with the fixed rod; the fixed rod is sleeved with a sliding block capable of sliding on the fixed rod; the slide (9) is arranged on the sliding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110005082.9A CN112342880B (en) | 2021-01-05 | 2021-01-05 | Laser scanning vehicle for detecting surface roughness of track paving layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110005082.9A CN112342880B (en) | 2021-01-05 | 2021-01-05 | Laser scanning vehicle for detecting surface roughness of track paving layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112342880A true CN112342880A (en) | 2021-02-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114319040A (en) * | 2021-12-22 | 2022-04-12 | 常州市恒正交通工程试验检测中心有限公司 | High-efficient road surface road bed performance detection device |
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| JP2019070254A (en) * | 2017-10-06 | 2019-05-09 | 大林道路株式会社 | Road surface property investigation device and road surface property investigation system |
| CN208846037U (en) * | 2018-05-23 | 2019-05-10 | 上海颢汉数字技术有限公司 | A kind of high-precision three-dimensional shooting frame |
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