Movable laser automatic adjustment elevation control device for pavement paving

Abstract

The utility model discloses a movable laser automatic adjustment elevation control device for pavement paving, which comprises a support frame used for being placed at survey lofting points on two sides of a road, a lifting guide structure distributed along the height direction of the support frame is arranged on the support frame, and a lifting platform is arranged on the lifting guide structure. The supporting frame is provided with a lifting driving mechanism, the lifting driving mechanism is connected with the lifting platform and drives the lifting platform to ascend and descend along the lifting guide structure, a laser altimeter is arranged on the lifting platform, a guide beam groove is formed in the outer side of the lifting platform, and a groove opening of the guide beam groove is flush with the top face of the lifting platform in height. And the guide beam groove is used for placing a square steel beam. The device can be manually moved, can quickly and accurately position the pavement paving elevation, can be matched with the square steel beam for use, can improve the paving flatness, reduces the labor time cost, and is high in efficiency.

Description

Technical Field

[0001] This utility model relates to the field of road paving construction technology, specifically a movable laser automatic elevation adjustment control device for road paving. Background Technology

[0002] Currently, the paving of road base courses, subbase courses, and asphalt concrete lower layers mostly adopts the steel bar pile and line hanging method for elevation control. Specifically, steel bar piles are driven on both sides of the paving road, and elevation lines are then drawn on the piles and hung. The shortcomings of the steel bar pile and line hanging method include: 1. High labor intensity in driving and extracting steel bar piles, wasting manpower and time; 2. Manual elevation adjustment cannot quickly and accurately locate the elevation; 3. Due to differences in tension and length of the steel wire rope, the wire rope may sag between the two steel bar piles, causing the ends of the steel bar piles to be higher than the middle, resulting in fluctuations in the paver's sliding rod sensor during paving, thus affecting the paving smoothness. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a movable laser automatic elevation adjustment control device for road paving that can be moved by humans, can quickly and accurately position the elevation of road paving, and can be used in conjunction with square steel beams to improve paving smoothness, reduce labor time costs, and achieve high efficiency.

[0004] This utility model is achieved through the following technical solution: a movable laser automatic elevation adjustment control device for road paving, comprising a support frame for placing measurement and layout points on both sides of the road, a lifting guide structure distributed along its height direction on the support frame, a lifting platform on the lifting guide structure, a lifting drive mechanism on the support frame, the lifting drive mechanism being connected to the lifting platform and driving the lifting platform to move up and down along the lifting guide structure, a laser altimeter being mounted on the lifting platform, a guide beam groove on the outer side of the lifting platform, the groove opening being level with the top surface of the lifting platform, and the guide beam groove being used to place a square steel beam.

[0005] Furthermore: the lifting platform has an inverted L-shaped structure, divided into a vertical part and a horizontal part. The vertical part is connected to the lifting guide structure and the lifting drive mechanism respectively. The laser height measuring instrument is set on the horizontal part. The guide beam groove is located on the outside of the horizontal part, and the groove opening of the guide beam groove is level with the top surface of the horizontal part.

[0006] Furthermore: the lifting drive mechanism includes a servo motor, a ball screw, and a connecting block. The two ends of the ball screw are mounted on the support frame through bearing seats. The drive end of the servo motor is connected to the ball screw. The connecting block is fitted onto the ball screw through ball bearings. The connecting block is fixed to the vertical part.

[0007] Furthermore, the lifting guide structure includes two guide rails, which are distributed parallel to each other, and each guide rail is provided with a slider. The vertical part and the slider are fixed.

[0008] Furthermore: a motor drive control device is provided on the horizontal part, and a battery box is provided on the side of the motor drive control device. The motor drive control device is connected to the servo motor, the laser altimeter, and the battery box respectively. The battery box is connected to the servo motor through a connecting cable group.

[0009] Furthermore: the support frame is composed of a square steel plate, a base, and a triangular support rod. The base is located at the bottom of the square steel plate, and the triangular support rod is connected between the rear side wall of the square steel plate and the base.

[0010] Furthermore, a carrying handle is provided on the top side of the square steel plate.

[0011] Furthermore, the square steel beam is made of thin-walled aluminum alloy.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model involves installing a laser height measuring instrument on a lifting platform. A guide steel groove is installed on the outer side of the lifting platform. The lifting platform is connected by a connecting block with built-in ball bearings and a ball screw. The ball screw is connected to a servo motor. When a preset elevation is input into the laser height measuring instrument, the motor drive control device receives the preset elevation command from the laser height measuring instrument and controls the servo motor to drive the lifting platform to rise and fall via the ball screw according to the preset elevation command. During the lifting process, the laser height measuring instrument monitors the height of the lifting platform in real time and provides feedback to the motor drive control device in real time until the lifting platform reaches the preset elevation. The elevation is set, and the motor-driven control device stops the servo motor from rotating, locking the elevation position. Then, the square steel beam is spliced ​​between two corresponding automatic elevation adjustment control devices at the layout points on both sides of the road through the guide steel channel. The paving slide bar of the paver is placed on the square steel beam. The paving clearance is set to 20cm as needed, and the initial paving elevation of the paver is adjusted. The paver is started, and its paving slide bar slides along the square steel beam to carry out the paving operation. This achieves rapid and accurate positioning of the road paving elevation and, in conjunction with the square steel beam, improves the paving smoothness, reduces labor time costs, and increases efficiency.

[0014] 2. By installing a carrying handle on the top side of the square steel plate, the entire automatic elevation adjustment control device can be moved easily.

[0015] 3. By setting guide rails, the slider on the guide rails is fixed to the vertical part of the lifting platform, and the vertical part of the lifting platform is fixed to the connecting block. The connecting block has a built-in ball bearing mounted on the ball screw, which allows the lifting platform to move up and down along the guide rails, ensuring the vertical lifting accuracy of the lifting platform.

[0016] 4. The support frame contacts the ground through the base, which is fixedly connected to a square steel plate and a triangular support rod to form a stable structure. The base can be equipped with lockable casters for easy movement and construction positioning.

[0017] 5. Place the paving slide bar of the paver on the square steel beam. The paving slide bar slides along the square steel beam to carry out the paving operation. The square steel beam has rigidity and smoothness, which can ensure the flatness of the paving. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 ;

[0021] Figure 4 This is a schematic diagram of the lifting guide structure and lifting drive mechanism of this utility model;

[0022] Figure 5 This is a schematic diagram of the lifting platform of this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1-Support frame, 2-Lifting guide structure, 3-Lifting platform, 4-Lifting drive mechanism, 5-Laser height gauge, 6-Guide beam groove, 7-Square steel beam, 8-Vertical part, 9-Horizontal part, 10-Servo motor, 11-Ball screw, 12-Connecting block, 13-Bearing seat, 14-Ball bearing, 15-Guide rail, 16-Slider, 17-Motor drive control device, 18-Battery box, 19-Connecting cable assembly, 20-Square steel plate, 21-Base, 22-Triangular support rod, 23-Hand ring, 24-Paving slide bar. Detailed Implementation

[0024] Figures 1 to 5This utility model provides a schematic diagram of the structure of a movable laser automatic elevation adjustment control device for road paving. It includes a support frame 1 for placing at measurement and layout points on both sides of the road. The support frame 1 has a lifting guide structure 2 distributed along its height direction. A lifting platform 3 is mounted on the lifting guide structure 2. The support frame 1 has a lifting drive mechanism 4 connected to the lifting platform 3, driving the lifting platform 3 to rise and fall along the lifting guide structure 2. A laser altimeter 5 is mounted on the lifting platform 3. The outer side of the lifting platform 3 has a guide beam groove 6, the opening of which is level with the top surface of the lifting platform 3. The guide beam groove 6 is used to place a square steel beam 7.

[0025] The lifting platform 3 has an inverted L-shaped structure, divided into a vertical part 8 and a horizontal part 9. The vertical part 8 is connected to the lifting guide structure 2 and the lifting drive mechanism 4 respectively. The laser height measuring instrument 5 is set on the horizontal part 9. The guide beam groove 6 is located on the outside of the horizontal part, and the groove opening of the guide beam groove 6 is level with the top surface of the horizontal part 9.

[0026] The lifting drive mechanism 4 includes a servo motor 10, a ball screw 11, and a connecting block 12. The two ends of the ball screw 11 are mounted on the support frame 1 through bearing seats 13. The drive end of the servo motor 10 is connected to the ball screw 11. The connecting block 12 is mounted on the ball screw 11 through ball bearings 14. The connecting block 12 is fixed to the vertical part 8.

[0027] The lifting guide structure 2 includes two guide rails 15, which are distributed parallel to each other. Each guide rail 15 is provided with a slider 16, and the vertical part 8 and the slider 16 are fixed.

[0028] A motor drive control device 17 is provided on the horizontal part 9, and a battery box 18 is provided on the side of the motor drive control device 17. The motor drive control device 17 is connected to the servo motor 10, the laser altimeter 5, and the battery box 18 respectively. The battery box 18 is connected to the servo motor 10 through the connecting cable group 19.

[0029] The support frame 1 consists of a square steel plate 20, a base 21, and a triangular support rod 22. The base 21 is located at the bottom of the square steel plate 20, and the triangular support rod 22 is connected between the rear side wall of the square steel plate 20 and the base 21.

[0030] The base can be fitted with lockable casters for easy movement and positioning during construction.

[0031] A carrying handle 23 is provided on the top side of the square steel plate 20.

[0032] Square steel beam 7 is made of thin-walled aluminum alloy.

[0033] The laser height gauge 5 features a data input screen, allowing direct input of target height values ​​and real-time feedback of measurement results via the display. It also supports data transmission via Bluetooth or RS232 interfaces for easy connection to external control systems. The laser height gauge 5 accurately measures vertical height using laser ranging and a built-in tilt sensor. High-precision height gauges are available on the market to suit various needs.

[0034] The laser altimeter 5 employs high-precision laser time-of-flight (TOF) to monitor ground elevation in real time with an accuracy of ±0.1mm. The laser altimeter path is as follows: the laser beam is projected vertically downwards onto the ground, the reflected signal is processed by the receiving module of the laser altimeter 5 to calculate the real-time elevation, and then fed back to the motor drive control device 17.

[0035] The motor drive control device 17 contains an integrated PLC or microcontroller, which receives the preset elevation command from the laser altimeter 5 and adjusts the speed of the servo motor 10, forming a closed-loop control in combination with the feedback from the laser altimeter 5.

[0036] During construction, the elevations on both sides of the road are first laid out according to the paving requirements, generally one laying point every 10 meters. Surveyors use a level to measure the paving elevation value of each laying point in advance. Paving elevation = paving thickness + paving clearance. Assuming the paving thickness is 20cm, and the distance from the sliding surface of the paver's slide bar (i.e., the top surface of the square steel beam 7) to the paving surface is 20cm, i.e., the paving clearance is 20cm, then the paving elevation value is 40cm.

[0037] A movable laser-based automatic elevation adjustment control device for the road surface paving is placed at each layout point on both sides of the road.

[0038] First, the preset elevation is input on the input screen of the laser altimeter 5. The motor drive control device 17 receives the preset elevation command from the laser altimeter 5. Based on the preset elevation command, the motor drive control device 17 controls the servo motor 10 to drive the ball screw 11 to rotate. The rotation of the ball screw 11 drives the connecting plate through the ball bearing 14, which in turn drives the lifting platform 3 to rise and fall along the ball screw 11 to the preset elevation position. During the lifting process of the lifting platform 3, the laser altimeter 5 provides real-time elevation feedback to the motor drive control device 17 until the lifting platform 3 reaches the preset elevation. At this point, the motor drive control device 17 stops the servo motor 10. Stop rotation and lock elevation position. At this time, the lifting platform 3 has been adjusted to the paving elevation. Place the square steel beam 7 in the guide steel groove of the lifting platform 3 of the paving movable laser automatic elevation adjustment control device at the two corresponding surfaces of the road layout points on both sides, and make the top surface of the square steel beam 7 flush with the top groove of the guide beam groove 6, so that the square steel beam 7 spans the paving road. Then, place the paving slide bar 24 of the paver on the top of the square steel beam 7, set the paving clearance to 20cm as needed, adjust the initial paving elevation of the paver, start the paver and drive its paving slide bar 24 to slide along the square steel beam 7 to start the paving operation.

[0039] The above detailed description is a specific description of a feasible embodiment of the present utility model. This embodiment is not intended to limit the patent scope of the present utility model. All equivalent implementations or modifications that do not depart from the present utility model should be included in the patent scope of this case.

Claims

1. A movable laser-based automatic elevation adjustment control device for road paving, characterized in that: The system includes a support frame for placing measurement and layout points on both sides of a road. The support frame is equipped with a lifting guide structure distributed along its height direction. A lifting platform is mounted on the lifting guide structure. The support frame is equipped with a lifting drive mechanism connected to the lifting platform, which drives the lifting platform to move up and down along the lifting guide structure. A laser altimeter is mounted on the lifting platform. The outer side of the lifting platform has a guide beam groove. The opening of the guide beam groove is level with the top surface of the lifting platform. The guide beam groove is used to place a square steel beam.

2. The movable laser-based automatic elevation adjustment control device for road paving according to claim 1, characterized in that: The lifting platform has an inverted L-shaped structure, divided into a vertical part and a horizontal part. The vertical part is connected to the lifting guide structure and the lifting drive mechanism, respectively. The laser height measuring instrument is set on the horizontal part. The guide beam groove is located on the outside of the horizontal part, and the groove opening of the guide beam groove is level with the top surface of the horizontal part.

3. The movable laser-based automatic elevation adjustment control device for road paving according to claim 2, characterized in that: The lifting drive mechanism includes a servo motor, a ball screw, and a connecting block. The two ends of the ball screw are mounted on the support frame through bearing seats. The drive end of the servo motor is connected to the ball screw. The connecting block is fitted onto the ball screw through ball bearings. The connecting block is fixed to the vertical part.

4. The movable laser-based automatic elevation adjustment control device for road paving according to claim 2, characterized in that: The lifting guide structure includes two guide rails, which are distributed parallel to each other. Each guide rail is provided with a slider, and the vertical part and the slider are fixed.

5. The movable laser-based automatic elevation adjustment control device for road paving according to claim 3, characterized in that: A motor drive control device is provided on the horizontal part, and a battery box is provided on the side of the motor drive control device. The motor drive control device is connected to the servo motor, the laser altimeter, and the battery box. The battery box is connected to the servo motor through a connecting cable group.

6. The movable laser-based automatic elevation adjustment control device for road paving according to claim 5, characterized in that: The support frame consists of a square steel plate, a base, and a triangular support rod. The base is located at the bottom of the square steel plate, and the triangular support rod is connected between the rear side wall of the square steel plate and the base.

7. The movable laser-based automatic elevation adjustment control device for road paving according to claim 6, characterized in that: A carrying handle is provided on the top side of the square steel plate.

8. The movable laser-based automatic elevation adjustment control device for road paving according to claim 7, characterized in that: The square steel beam is made of thin-walled aluminum alloy.

Images