Paving thickness control device and method of paver

Abstract

The invention discloses a paving thickness control device and method of a paver. The paving thickness control device of the paver comprises a worm gear lead screw lifting device, a worm gear and lead screw lifting device, a worm gear and lead screw lifting device and a transmission device, the transmission device electrically drives the lead screw to ascend and descend. The bracket is used for supporting the worm gear lead screw lifting device; the distance measuring device is connected with the lower end of the screw; the guide beam is used for providing a paver control track; the jacking is arranged at the upper end of the lead screw and used for supporting the guide beam; the control module is used for controlling the transmission device and the distance measuring device; the power supply is used for supplying power. The invention further discloses a paving thickness control method corresponding to the device. According to the device, the paving thickness can be automatically adjusted, the tedious construction processes of measuring, paying off, steel wire pulling and the like before paving of the paver are solved, and manual errors and interference of the external environment in the construction process can be avoided.

Description

Technical Field

[0001] The present application relates to the technical field of paving construction, and in particular to an intelligent control device and method for the paving thickness of a paver. Background Art

[0002] At present, the water-stabilized concrete paving adopts the method of controlling the water-stabilized concrete elevation by hanging lines on steel bar piles. The specific method is: hammer steel bar heads on both sides of the paved road, and then measure the elevation hanging lines on the piles.

[0003] The disadvantages of steel pile hanging line are: 1. Driving and pulling out steel piles is labor-intensive and steel piles are easy to bend, wasting man-hours and materials.

[0004] 2. Systematic measurement and layout work is required before use, and the elevation cannot be quickly and accurately located.

[0005] 3. When the paver is paving, the elevation sensor may fluctuate up and down due to the drooping and flexibility of the rope during movement, thereby affecting the thickness of the water-stable paving.

[0006] For example, Chinese patent CN201920303892.0 discloses a water-stabilized paving elevation control device. This patent provides a quick-hanging anchor for water-stabilized paving, which facilitates recording elevations and effectively shortens the construction time required for hanging lines. During use, this device requires extensive surveying and setting out, adjusting the position of the self-locking screws one by one to achieve accurate wire rope elevation. This device cannot guarantee thickness errors caused by wire rope sagging during paving, and the anchor installation process during construction is complex, making rapid turnover impossible in a short period of time and inefficient in adjusting elevations.

[0007] Chinese patent CN202021743217.9 discloses an adjustable wire hanging bracket for water-stabilizing layer construction. During the use of this device, large-scale surveying and setting out work is required to adjust the position of the tightening screws on the marking bracket one by one to achieve accurate elevation of the wire rope. During the construction of this device, the sagging of the wire rope can easily cause errors in the paving thickness, and repeated pulling and pulling can easily cause the bracket to bend, resulting in large material loss. The paving thickness adjustment process of the entire construction process is complicated, and it cannot be quickly cycled and used in a short period of time, and intelligent paving thickness adjustment cannot be achieved.

[0008] Therefore, there is an urgent need for a paving thickness control device that is simple to lay, has high construction efficiency and can automatically adjust the paving thickness. Summary of the Invention

[0009] The present application provides a device and method for controlling the paving thickness of a paver.

[0010] In a first aspect, a paving thickness control device for a paver is provided, comprising: The worm gear screw lifting device comprises a screw and a transmission device; the transmission device electrically drives the screw to rise and fall; A bracket, used to support the worm gear screw lifting device; A distance measuring device is connected to the lower end of the lead screw; Guide beams, which provide a control track for the paver; A top support is provided at the upper end of the screw rod to support the guide beam; A control module, used for controlling the transmission device and the distance measuring device; Power supply, used for power supply.

[0011] In one possible implementation, the transmission device includes a motor, a housing, and a worm, a worm wheel, a bearing, and a housing arranged in the housing; the motor is used to drive the worm; the worm wheel and the worm cooperate; the worm wheel and the worm are meshed; and the bearing is used for the movable connection between the worm, the worm wheel, and the housing.

[0012] In one possible implementation, the outer wall of the screw is marked with scales for reading the height of the screw rise.

[0013] In one possible implementation, the distance measuring device is a laser rangefinder, which is used to measure the height of the distance measuring device from the ground.

[0014] In one possible implementation, the jacking support includes a bearing and a bracket; the bearing is arranged at the bottom of the bracket and connected to the upper end of the screw rod.

[0015] In one possible implementation, the control module includes a computer.

[0016] In one possible implementation, the paver paving thickness control device further includes a display device for displaying parameter information of the equipment.

[0017] Furthermore, the control module is connected to the display device, the distance measuring device and the transmission device through wired or wireless connections.

[0018] In a second aspect, a method for controlling paving thickness using the paving thickness control device of the paver according to the first aspect is provided, comprising the following steps: Plan the paver paving width and paving route, and install the paver paving thickness control device on the paving route; Debug the paver's paving thickness control device and preset the virtual paving elevation; The distance measuring device sends the elevation information of the paving layer base to the control device; the control module calculates the elevation difference between the virtual paving elevation and the guide beam elevation, and issues a command to control the worm gear screw lifting device to move up and down; The transmission device executes the instructions to drive the transmission device to rise and fall, so that the elevation of the guide beam is consistent with the virtual paving elevation, so as to achieve guide beam elevation leveling.

[0019] In one possible implementation, after the paving is completed, the paving thickness control device of the paver is dismantled and transferred to the next construction section for reuse, thereby achieving rapid turnover.

[0020] The beneficial effects of this application are as follows: (1) The device described in this application can realize automatic adjustment of paving thickness, solve the tedious construction process of measuring and laying out lines, pulling steel wires, etc. before paving by the paver, and avoid human errors and interference from the external environment during the construction process.

[0021] (2) The device described in this application adopts a structural design of a bracket and a top support, and the upper part is used to support the guide beam, which avoids the problems of high labor intensity, low construction efficiency and material cost in the traditional method of driving and pulling out steel piles; it can also avoid the problem that the elevation sensor of the paver may fluctuate up and down due to the drooping and flexibility of the rope during movement, thereby affecting the uneven paving thickness.

[0022] (3) The device described in this application controls the elevation of the guide beam as a whole through the control system, which can realize one-time automatic adjustment of the paving thickness. The adjustment process is fast and accurate, and there is no need for manual measurement, layout and elevation calculation, which greatly improves construction efficiency.

[0023] (4) This application also provides a method based on the device, which has simple construction steps, can significantly reduce labor costs, and can be recycled, saving energy and being environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the structure of an intelligent control device for paving thickness of a paver provided by an embodiment of the present invention; Figure 2 A schematic diagram of the construction of an intelligent control device for paving thickness of a paver provided in an embodiment of the present invention.

[0025] In the figure, 1- bracket, 2- transmission device, 3- screw rod, 4- small engraved hole, 5- large engraved hole, 6- top support, 7- guide beam, 8- longitudinal slope sensor, 9- distance measuring device, 10- display device, 11- control module, 12- bearing. DETAILED DESCRIPTION

[0026] The content of this application is further described below with reference to specific embodiments, but the content of this application is not limited thereto.

[0027] Existing methods for controlling paving thickness typically use steel piles with wires. This method involves driving steel piles along the paving direction, then hanging steel wires from them. This method requires systematic measurement and layout before use. This method is cumbersome, resulting in high labor, measurement, and material costs, and low efficiency. Furthermore, due to the toughness and sagging of the steel wires, errors in paving thickness are inevitable during paver operation.

[0028] In view of this, the present application provides a device and method for controlling the paving thickness of a paver.

[0029] See also Figure 1 , a paving thickness control device for a paver provided in an embodiment of the present application, comprising: The worm gear screw lifting device includes a screw 3 and a transmission device 2; the transmission device electrically drives the screw to rise and fall; Bracket 1, used to support the worm gear screw lifting device; Distance measuring device 9, connected to the lower end of the screw rod 3; Guide beam 7, used to provide a control track for the paver; A top support 6 is provided at the upper end of the screw rod 3 and is used to support the guide beam 7; A control module 11, used to control the transmission device 2 and the distance measuring device 9; Power supply, used for power supply.

[0030] In one possible implementation, the transmission device 2 includes a motor, a housing, and a worm, a worm wheel, a bearing, and a housing arranged in the housing; the motor is used to drive the worm; the worm wheel and the worm cooperate; the worm wheel and the worm are meshed; and the bearing is used for the movable connection between the worm, the worm wheel, and the housing.

[0031] In one possible implementation, the outer wall of the screw rod 3 is marked with a scale for reading the height of the screw rod rise.

[0032] For example, in this embodiment of the present application, a small engraved hole 4 and a large engraved hole 5 are provided on the outer wall of the screw rod 3. The small engraved hole 4 is graduated at 10mm intervals, while the large engraved hole 5 is graduated at 50mm intervals. These two holes are combined to quickly read the extended length of the screw rod 3. This scale, combined with the thickness of the transmission device 2, the thickness of the jack support 6, the vertical height of the bracket 1, and the thickness of the guide beam, yields the virtual paving elevation, which is used to verify its accuracy.

[0033] It should be noted that the virtual paving elevation refers to the height between the base layer and the upper surface of the paving layer.

[0034] In one possible implementation, the distance measuring device 9 is a laser rangefinder, which is used to measure the height of the distance measuring device from the ground.

[0035] It should be noted that the virtual paving elevation is obtained by adding the measured distance of the distance measuring device 9 to the thickness of the distance measuring device 9, the length of the screw rod, the thickness of the jacking 6 and the thickness of the guide beam 7.

[0036] In one possible implementation, the support 6 includes a bearing 12 and a bracket; the bearing 12 is disposed at the bottom of the bracket, so that the bracket can rotate around the bearing.

[0037] It can be understood that the arrangement of the bearing 12 can prevent the guide beam 7 from rotating during the lifting of the screw rod 3 .

[0038] In one possible implementation, the control module 11 includes a computer.

[0039] In one possible implementation, the paving thickness control device for a paver further includes a display device 10 for displaying parameter information of the device, such as operating status, power level, location information, paving thickness, abnormal status information, etc.

[0040] Furthermore, the control module 11 is connected to the display device, the distance measuring device and the transmission device through wired or wireless connections.

[0041] Exemplarily, the wireless connection can be achieved by providing a wireless communication module, such as a WiFi module or a 4G module.

[0042] The above introduces the paving thickness control device of the paver. The following introduces the paving thickness control method corresponding to this device.

[0043] The method for controlling paving thickness comprises the following steps: S100, planning the paving width and paving route of the paver, and installing a paving thickness control device of the paver on the paving route; S200, debug the paver paving thickness control device and preset the virtual paving elevation; S300: The distance measuring device sends the elevation information of the paving layer base to the control device; the control module calculates the difference between the virtual paving elevation and the elevation of the guide beam, and issues a command to control the worm gear screw lifting device to move up and down; S400: The transmission device executes the instruction to drive the transmission device to rise and fall, so that the elevation of the guide beam is consistent with the virtual paving elevation, so as to achieve guide beam elevation leveling.

[0044] In one possible implementation, after the paving is completed, the paving thickness control device of the paver is dismantled and transferred to the next construction section for reuse, thereby achieving rapid turnover.

[0045] See also Figure 2 After the elevation leveling of the paving thickness control device of the paver is completed, the longitudinal slope sensor 8 of the paver slides along the guide beam to perform benchmark leveling, thereby realizing accurate and automatic control of the paving thickness.

[0046] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications, equivalent replacements and improvements made by any technician familiar with this technical field within the technical scope disclosed by the present invention should be included in the scope of protection of the invention.

Claims

1. The paving thickness control device of the paver is characterized by: include: A worm gear screw lifting device, including a screw and a transmission device; The transmission device electrically drives the screw rod to rise and fall; A bracket, used to support the worm gear screw lifting device; A distance measuring device is connected to the lower end of the lead screw; Guide beams, which provide a control track for the paver; A top support is provided at the upper end of the screw rod to support the guide beam; A control module, used for controlling the transmission device and the distance measuring device; Power supply, used for power supply.

2. The paving thickness control device of a paver according to claim 1, characterized in that: The transmission device includes a motor, a housing, a worm, a worm wheel, a bearing and a housing arranged in the housing; the motor is used to drive the worm; the worm wheel and the worm cooperate; the worm wheel and the worm are meshed; the bearing is used to movably connect the worm, the worm wheel and the housing.

3. The paving thickness control device of a paver according to claim 1, characterized in that: The outer wall of the screw rod is marked with a scale for reading the rising height of the screw rod.

4. The paving thickness control device of a paver according to claim 1, characterized in that: The distance measuring device is a laser rangefinder, which is used to measure the height of the distance measuring device from the ground.

5. The paving thickness control device of a paver according to claim 1, characterized in that: The jacking support includes a bearing and a bracket; the bearing is arranged at the bottom of the bracket and connected to the upper end of the screw rod.

6. The paving thickness control device for a paver according to claim 1, characterized in that: The control module includes a computer.

7. The paving thickness control device of a paver according to claim 1, characterized in that: The paver paving thickness control device also includes a display device for displaying parameter information of the equipment.

8. The paving thickness control device for a paver according to claim 7, characterized in that: The control module is connected to the display device, the distance measuring device and the transmission device via wired or wireless connections.

9. A method for controlling paving thickness using the paving thickness control device for a paver according to any one of claims 1 to 8, characterized in that: The following steps are involved: Plan the paver paving width and paving route, and install the paver paving thickness control device on the paving route; Debug the paver's paving thickness control device and preset the virtual paving elevation; The distance measuring device sends the elevation information of the paving layer base to the control device; the control module calculates the elevation difference between the virtual paving elevation and the guide beam elevation, and issues a command to control the worm gear screw lifting device to move up and down; The transmission device executes the instructions to drive the transmission device to rise and fall, so that the elevation of the guide beam is consistent with the virtual paving elevation, so as to achieve guide beam elevation leveling.

10. The method according to claim 9, characterized in that After the paving is completed, the paver paving thickness control device is dismantled and transferred to the next construction section for reuse, thereby achieving rapid turnover.

Images