Automatic leveling device for pavement paving
By introducing a guide rail frame and transmission system into the automatic leveling device, the position adjustment of the automatic leveling instrument probe was realized, solving the problem of adaptability of the device under complex road surface conditions and improving paving quality and accuracy.
Patent Information
- Application Number
- CN202423213333.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2034-12-25
AI Technical Summary
When used in a fixed position, existing automatic leveling devices cannot adapt to large changes in road surface shape, resulting in unsatisfactory leveling effects, especially on irregular undulations or potholes.
An automatic leveling device was designed, comprising a fixed base, an adjusting base, a guide rail frame, and a movable base. Through a worm gear, worm wheel, motor, and gear meshing transmission system, the probe of the automatic leveling instrument can slide along the guide rail frame to adapt to complex road surface shapes and achieve position adjustment.
It improves the adaptability and leveling accuracy of the device on complex road surfaces, and can automatically adjust the paving height according to the road conditions to ensure paving quality.
Smart Images

Figure CN223936956U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of automatic leveling technology for road paving, and more specifically, to an automatic leveling device for road paving. Background Technology
[0002] Automated leveling technology for road paving is a technique that uses an automated system to control the paver's operation, ensuring the paved road surface achieves the required smoothness and thickness. Automated leveling systems typically combine high-precision sensors, control systems, hydraulic adjustments, and dynamic adjustment functions. They can adjust the paver's height and tilt angle in real time during paving, ensuring the paving operation remains smooth under different ground conditions. This is crucial for ensuring road quality, improving construction efficiency, reducing manual intervention, and optimizing paving operations.
[0003] Working principle of automatic leveling technology
[0004] Sensor Measurement
[0005] Laser sensors, radar sensors, or ultrasonic sensors: Automatic leveling systems are typically equipped with high-precision sensors, primarily used to detect road surface height and smoothness. The sensors scan the ground to acquire real-time data on road unevenness and height changes. This data is then sent to the control system.
[0006] Laser Smoothing System: Modern pavers typically use laser systems to accurately measure the thickness and smoothness of the paved layer. Laser sensors are fixed to the front, back, or sides of the paver to scan the surface to be paved and obtain real-time height information.
[0007] Data processing and feedback control
[0008] Real-time feedback system: The acquired ground height data is processed by the control system to calculate the actual deviation between the paver and the ground. The system automatically calculates the required adjustment parameters (such as the paver's height and inclination) and feeds these adjustment signals back to the paver.
[0009] Hydraulic control system: Following instructions from the control system, the paver's hydraulic system automatically adjusts the height and angle of the paving slab to maintain balance between the paving slab and the ground. This is typically achieved through hydraulic cylinders, which control the paver's lifting and lowering to ensure the paved material is evenly and smoothly laid.
[0010] Automated leveling technology for road paving, through high-precision sensors, real-time feedback control, and dynamic adjustment mechanisms, enables more precise control of smoothness and thickness during the paving process. It not only significantly improves road paving quality but also enhances construction efficiency, reduces manual intervention, and adapts to the construction needs of different terrains. With the development of intelligent and fully automated technologies, future paving operations will be more efficient, precise, and automated.
[0011] The prior art publication number CN117684433A provides an automatic leveling device component for a road paver. This device filters the air drawn in by the blower through a filter device, and then continuously blows air through the nozzle to the automatic leveling device probe to blow away the dust on the automatic leveling device probe, thus preventing the surface of the automatic leveling device probe from being covered with dust and ensuring the normal use of the automatic leveling device probe.
[0012] Although the existing technical solutions described above can achieve the relevant beneficial effects through the structure of the existing technology, they still have the following defects: when the device is used, it will be fixed in position, which limits it to leveling only in a certain fixed area. If the shape of the road surface changes significantly (such as irregular undulations or potholes), the device may not be able to adapt sufficiently, resulting in an unsatisfactory leveling effect.
[0013] In view of this, we propose an automatic leveling device for road paving. Utility Model Content
[0014] 1. Technical problems to be solved
[0015] The purpose of this application is to provide an automatic leveling device for road paving, in order to solve the problem mentioned in the background art that when the device is used, it is fixed in position, which limits it to leveling only in a certain fixed area. If the road surface shape changes significantly (such as irregular undulations or potholes), the device may not be able to adapt adequately, resulting in unsatisfactory leveling effect.
[0016] 2. Technical Solution
[0017] An automatic leveling device for road paving includes two fixed seats, an adjusting seat, a guide rail frame, a movable seat, and an automatic leveling probe. The adjusting seat is slidably mounted on the fixed seats.
[0018] The guide rail bracket is positioned between the two adjustment seats;
[0019] The movable seat is slidably mounted on the guide rail frame;
[0020] The probe of the automatic leveling instrument is fixedly mounted on the movable base.
[0021] Preferably, a worm gear is rotatably connected to the fixed base, one end of the worm gear is engaged with a worm wheel, the worm wheel is rotatably connected to the fixed base, an adjusting rod is fixedly connected to the worm wheel, and the other end of the adjusting rod is slidably engaged with the inner wall of the adjusting base.
[0022] Preferably, a motor is fixedly connected to the movable base, and a gear is fixedly connected to the output end of the motor.
[0023] Preferably, a rack is fixedly connected to the middle of the guide rail frame, and the rack is meshed with a gear for transmission.
[0024] Preferably, the inner walls at both ends of the guide rail frame are slidably fitted with splicing blocks, one end of the splicing block is fixedly connected to a spring, the other end of the spring is fixedly connected to the inner wall of the guide rail frame, and the splicing block is movably inserted into the inner wall of the adjusting seat.
[0025] 3. Beneficial effects
[0026] Compared with the prior art, the advantages of this application are: when in use, by setting a guide rail frame, the device can be positioned along the width or length of the paver by using a movable seat. This design allows the device to automatically adjust its position according to the conditions of different parts of the road surface, adapt to complex and irregular road surface shapes, improve the adaptability of leveling, and accurately control the paving height of different parts. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the overall structure of this application;
[0028] Figure 2 This is a partial sectional view of the adjustment seat and other structures in this application.
[0029] Figure 3 This is a schematic diagram showing the unfolded structure of the guide rail frame and other components of this application.
[0030] The following are the labels in the diagram: 1. Fixed seat; 2. Adjustable seat; 3. Guide rail frame; 4. Moving seat; 5. Automatic leveling probe; 101. Worm gear; 102. Worm wheel; 103. Adjusting rod; 401. Motor; 402. Gear; 301. Rack; 302. Splicing block; 303. Spring. Detailed Implementation
[0031] Please refer to Figures 1-3. This application provides a technical solution:
[0032] An automatic leveling device for road paving includes two fixed seats 1, an adjusting seat 2, a guide rail frame 3, a movable seat 4, and an automatic leveling probe 5. The adjusting seat 2 is slidably mounted on the fixed seat 1.
[0033] The guide rail 3 is positioned between the two adjusting seats 2;
[0034] The movable seat 4 is slidably mounted on the guide rail frame 3;
[0035] The automatic leveling instrument probe 5 is fixedly mounted on the movable base 4.
[0036] Specifically, a worm gear 101 is rotatably connected to the fixed base 1, and a worm wheel 102 is engaged with one end of the worm gear 101. The worm wheel 102 is rotatably connected to the fixed base 1, and an adjusting rod 103 is fixedly connected to the worm wheel 102. The other end of the adjusting rod 103 is slidably engaged with the inner wall of the adjusting base 2.
[0037] Furthermore, a motor 401 is fixedly connected to the movable base 4, and a gear 402 is fixedly connected to the output end of the motor 401.
[0038] Furthermore, a rack 301 is fixedly connected to the middle of the guide rail frame 3, and the rack 301 is meshed with the gear 402 for transmission.
[0039] In addition, both ends of the guide rail frame 3 are slidably fitted with splicing blocks 302. One end of the splicing block 302 is fixedly connected to a spring 303, and the other end of the spring 303 is fixedly connected to the inner wall of the guide rail frame 3. The splicing block 302 is movably inserted into the inner wall of the adjusting seat 2.
[0040] The implementation principle of an automatic leveling device for road paving in this embodiment is as follows: When automatic leveling is required for road paving, the fixed seat 1 is first placed on one side of the road. Then, the splicing blocks 302 at both ends of the guide rail frame 3 are inserted into the adjusting seat 2. Under the action of the spring 303, the splicing blocks 302 are movably engaged with the adjusting seat 2. Then, by rotating the worm gear 101, the worm gear 101 can drive the adjusting rod 103 connected to the worm wheel 102 to rotate, thereby adjusting the height of the adjusting seat 2. Then, during automatic leveling, the motor 401 drives the connected gear 402 to rotate, so that the gear 402, under the action of the rack 301, will drive the moving seat 4 to move, thereby adjusting the position of the automatic leveling probe 5 and performing automatic leveling.
Claims
1. An automatic leveling device for road paving, comprising two fixed seats (1), an adjusting seat (2), a guide rail frame (3), a movable seat (4), and an automatic leveling probe (5), characterized in that: An adjusting seat (2) is slidably fitted on the fixed seat (1); The guide rail bracket (3) is positioned between the two adjusting seats (2); The movable seat (4) is slidably mounted on the guide rail frame (3); The automatic leveling probe (5) is fixedly mounted on the movable base (4).
2. The automatic leveling device for road paving according to claim 1, characterized in that: A worm gear (101) is rotatably connected to the fixed base (1). One end of the worm gear (101) is engaged with a worm wheel (102). The worm wheel (102) is rotatably connected to the fixed base (1). An adjusting rod (103) is fixedly connected to the worm wheel (102). The other end of the adjusting rod (103) is slidably engaged with the inner wall of the adjusting base (2).
3. The automatic leveling device for road paving according to claim 1, characterized in that: A motor (401) is fixedly connected to the movable seat (4), and a gear (402) is fixedly connected to the output end of the motor (401).
4. The automatic leveling device for road paving according to claim 1, characterized in that: A rack (301) is fixedly connected to the middle of the guide rail frame (3), and the rack (301) is meshed with a gear (402) for transmission.
5. The automatic leveling device for road paving according to claim 4, characterized in that: Both ends of the guide rail frame (3) are slidably fitted with splicing blocks (302). One end of the splicing block (302) is fixedly connected to a spring (303), and the other end of the spring (303) is fixedly connected to the inner wall of the guide rail frame (3). The splicing block (302) is movably inserted into the inner wall of the adjusting seat (2).
Citation Information
Patent Citations
Automatic leveling instrument assembly of pavement paver
CN117684433A