An intermittent cord mill system

Abstract

This invention discloses an intermittent rumble strip milling system in the field of milling equipment technology, aiming to solve the problems of cumbersome manual operation required for intermittent rumble strip milling in existing technologies. It includes a control module, a rumble strip milling walking module, a support leg lifting module, and a milling module. The milling module performs the milling operation, and the support leg lifting module drives the milling module to rise and fall. The rumble strip milling walking module drives the milling module to move and transmits a walking detection signal to the control module during the movement. The control module controls the start and stop of the rumble strip milling walking module, receives the walking detection signal, and controls the support leg lifting module and the milling module to switch between raising and lowering the milling module and milling operations based on the walking detection signal, thus realizing intermittent rumble strip milling. This invention can easily achieve intermittent rumble strip milling, saving manpower and improving work efficiency.

Description

Technical Field

[0001] This invention relates to an intermittent rumble strip milling system, belonging to the technical field of milling equipment. Background Technology

[0002] In recent years, my country's highway construction industry has developed rapidly. This rapid development necessitates that highway maintenance keep pace. After decades of development, my country's high-grade highways have become a pillar industry driving national economic growth. However, with the increasing service life of highways, especially early-built high-grade highways, their service quality has declined year by year due to factors such as design, equipment, and construction experience limitations, particularly the subsequent surge in traffic volume. If early-stage defects in high-grade highways are not repaired promptly, these defects will rapidly expand. Therefore, highway maintenance is of paramount importance. Under these circumstances, people are placing increasingly higher demands on highway maintenance equipment, and milling machines, as important equipment for highway maintenance, are receiving increasing attention.

[0003] Currently, mechanized maintenance operations using milling machines as the main equipment have been widely adopted in the maintenance of high-grade highways in my country, becoming a standardized maintenance model under the current circumstances. The market demand for milling machines is gradually increasing. Rumble strips are typically installed on the shoulder of the roadway, formed by a series of raised and recessed mechanisms, using sound and vibration to warn drivers who have left the roadway, reducing traffic accidents. Rumble strip milling is also increasingly used in the milling industry. However, currently, milling machines can only perform continuous rumble strip milling; intermittent rumble strip milling still requires manual control. This makes intermittent rumble strip milling cumbersome for operators, significantly increasing their workload and reducing work efficiency. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an intermittent vocal cord milling system that can easily achieve intermittent vocal cord milling, save manpower, and improve work efficiency.

[0005] To achieve the above objectives, the present invention is implemented using the following technical solution: an intermittent rumble strip milling system, comprising a control module, a rumble strip milling walking module, a support leg lifting module, and a milling module, wherein the milling module is used to perform milling operations, and the support leg lifting module is used to drive the milling module to rise and fall.

[0006] The rumble strip milling walking module is used to drive the milling module to walk, and transmits the walking detection signal to the control module during the walking process;

[0007] The control module is used to control the start and stop of the rumble strip milling walking module and the milling module, and to receive the walking detection signal. Based on the walking detection signal, it controls the outrigger lifting module to switch between milling walking and lifting walking, so that when the milling machine descends to contact the ground, the road milling operation is performed, and when the milling machine rises away from the ground, the road milling operation is stopped, thus realizing intermittent rumble strip milling.

[0008] Furthermore, the control module includes a control panel and a controller connected by electrical signals. The control panel is used to output intermittent rhinoceros milling operation signals to the controller. The controller is used to receive the intermittent rhinoceros milling operation signals and control the start and stop of the rhinoceros milling walking module and the milling module according to the intermittent rhinoceros milling operation signals.

[0009] Furthermore, the intermittent rumble strip milling operation signal includes a walking start / stop signal, a milling start / stop signal, and rumble strip milling configuration information. The rumble strip milling configuration information includes a milling walking distance setting value, a lifting walking distance setting value, and a rumble strip milling lifting height parameter.

[0010] Furthermore, the rumble strip milling and walking module includes a walking motor, a rumble strip walking wheel, and a walking detection unit. The output end of the walking motor is connected to the rumble strip walking wheel and is also connected to the controller via electrical signals. The controller can drive the walking motor to start and stop according to the walking start and stop signals.

[0011] The walking detection unit is used to detect the walking distance of the rumble belt walking wheel, generate a walking detection signal and transmit it to the controller. The controller can control the raising and lowering of the outrigger lifting module according to the received walking detection signal.

[0012] Furthermore, the rumble strip traveling wheel is a regular pentagon with each side having a length of 30cm.

[0013] Furthermore, the walking detection unit includes a proximity switch and a sensing iron plate, the rumble belt walking wheel is mounted on the milling machine by a mounting bracket, and the proximity switch is mounted on the mounting bracket;

[0014] The number of sensing iron plates is 5, which are respectively set on the 5 corners of the rumble belt traveling wheel. When the sensing iron plate approaches the proximity switch, the proximity switch can output a high-level signal to the controller.

[0015] The controller can accumulate the received high-level signals to determine the traveling distance of the milling machine, and control the lifting of the outrigger module according to the traveling distance.

[0016] Furthermore, the travel distance is divided into milling travel distance and lifting travel distance. When the milling travel distance reaches the set value, the controller controls the outrigger lifting module to rise and enter the lifting travel stage. When the lifting travel distance reaches the set value, the controller controls the outrigger lifting module to descend and enter the milling travel stage.

[0017] Furthermore, the outrigger lifting module includes a solenoid valve, an outrigger hydraulic cylinder, and a cylinder position sensor. The outrigger hydraulic cylinder is used to drive the milling module to rise and fall. The solenoid valve is located in the oil circuit of the outrigger hydraulic cylinder and is electrically connected to the controller. The controller can control the on / off state of the solenoid valve according to the walking distance to drive the outrigger hydraulic cylinder to extend and retract. The cylinder position sensor is used to monitor the extension and retraction state of the outrigger hydraulic cylinder and transmit it to the controller.

[0018] Furthermore, the control accuracy of the extension and retraction of the outrigger hydraulic cylinder is 1mm.

[0019] Furthermore, the milling module includes a milling motor and a milling drum. The output end of the milling motor is connected to the milling drum and is used to drive the milling drum to perform milling operations.

[0020] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0021] This invention can automatically detect and calculate the milling travel distance and lifting travel distance of the rumble strip milling machine, thereby controlling the lifting and lowering of the milling machine to achieve automatic control of intermittent milling of the rumble strip. This eliminates the need for tedious manual operation by the operator and reduces the labor intensity of the operator.

[0022] In practical operation, this invention can maintain a rumble strip milling error of less than 3cm even at a milling machine travel speed of 10m / min, thus improving the working efficiency of intermittent rumble strip milling. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the control relationship of an intermittent rumble strip milling system in one embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the rumble strip traveling wheel of the intermittent rumble strip milling system in one embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the installation of the walking detection unit of the intermittent rumble strip milling system in one embodiment of the present invention;

[0026] In the diagram: 1. Induction plate, 2. Rumble strip and wheel, 3. Proximity switch. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0028] like Figure 1 As shown, the intermittent rumble strip milling system provided in this embodiment of the invention includes a control module, a rumble strip milling walking module, a support leg lifting module, and a milling module.

[0029] The control module includes a control panel and a controller. The control panel transmits intermittent rumble strip milling operation signals to the controller. The intermittent rumble strip milling operation signals include travel start / stop signals, milling start / stop signals, and rumble strip milling configuration information. The rumble strip milling configuration information includes milling travel distance, lifting travel distance, and rumble strip milling lifting height parameters.

[0030] After receiving the intermittent rumble milling operation signal, the controller controls the rumble milling walking module and the milling module according to the intermittent rumble milling operation signal, and completes the start and stop control of the rumble milling machine's walking and milling operations.

[0031] In this embodiment, the rumble strip milling walking module is the walking component of the milling machine. It includes a walking motor, rumble strip walking wheels 2, and a walking detection unit. The output end of the walking motor is connected to the rumble strip walking wheels 2. The walking motor is also connected to the controller via electrical signals. The controller controls the driving of the walking motor according to the walking signals, thereby realizing the start and stop of the rumble strip walking wheels 2.

[0032] The rumble belt traveling wheel 2 is approximately pentagonal in shape, with each side measuring about 30cm. The travel detection unit includes a proximity switch 3 and five sensing iron plates 1. The five sensing iron plates 1 are respectively located at the five corners of the rumble belt traveling wheel. The proximity switch 3 is mounted on the mounting bracket of the rumble belt traveling wheel 2. Whenever a sensing iron plate 1 approaches the proximity switch 3, the proximity switch 3 outputs a high-level signal to the controller. The controller receives the high-level signal and accumulates it to accurately determine the traveling distance of the milling machine. The controller can control the outrigger lifting module according to the traveling distance to switch between lifting travel and milling travel.

[0033] The outrigger lifting module drives the overall lifting and lowering of the milling module. It includes a solenoid valve, outrigger hydraulic cylinders, and cylinder position sensors. The output end of the outrigger hydraulic cylinders is connected to the milling machine, and they control the lifting and lowering of the milling machine through extension and retraction. The extension and retraction accuracy of the outrigger hydraulic cylinders is 1mm. The solenoid valves are electrically connected to the controller, which controls the start and stop of the outrigger hydraulic cylinders by controlling the on / off state of the solenoid valves. The cylinder position sensors monitor the extension and retraction status of the outrigger hydraulic cylinders and transmit the current status to the controller.

[0034] The milling module is used for milling operations. It mainly refers to the milling components of the milling machine, including the milling motor and the milling drum. The milling motor is connected to the milling drum and is used to drive the milling drum to perform milling operations on the road surface.

[0035] The working principle of this invention is as follows: First, the operator transmits the walking start signal and the milling start signal through the control panel. After receiving the walking start signal and the milling start signal, the controller drives the walking motor and the milling motor. Then, the walking motor and the milling motor drive the rumble belt walking wheel 2 and the milling drum to perform walking operation and milling operation, respectively.

[0036] Since the rumble strip milling traveling wheel 2 is approximately a regular pentagon, whenever the edge of the rumble strip milling traveling wheel 2 contacts the road surface, the milling drum mills a rumble strip groove. At this time, the system is in the milling traveling stage.

[0037] During the milling travel phase, proximity switch 3 detects the induction iron piece 1 located at the corner of the rumble belt travel wheel 2 and sends a high-level signal to the controller. When the controller receives the high-level signal, it can determine that the milling machine has traveled one side length (i.e., 30cm). The controller can calculate the milling travel distance of the milling machine by accumulating the high-level signals.

[0038] When the milling machine reaches the set milling travel distance, the controller sends a signal to the solenoid valve (initially in the closed state). The solenoid valve switches to open, and the outrigger hydraulic cylinder drives the milling machine to rise, entering the lifting and traveling stage. At this time, the milling machine does not contact the road surface to mill, but it is still in working condition, just idling.

[0039] During the lifting and walking phase, proximity switch 3 continuously detects the induction iron piece 1 located at the corner of the rumble belt walking wheel 2 and sends a high-level signal to the controller. When the controller receives the high-level signal, it can determine that the milling machine has traveled one side length (i.e., 30cm). The controller can calculate the lifting and walking distance of the milling machine by accumulating the high-level signals.

[0040] When the milling machine's lifting travel distance reaches the set value, the controller sends a signal to the solenoid valve (which is currently in the open state). The solenoid valve then switches to the closed state, and the outrigger hydraulic cylinder drives the milling machine down to contact the road surface, re-entering the milling travel stage. At this point, the milling machine begins milling, thus completing the switch from the milling travel stage to the lifting travel stage and back to the milling travel stage.

[0041] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An intermittent cord mill system, characterized by, It includes a control module, a rumble strip milling and walking module, a support leg lifting module, and a milling module, wherein the milling module is used to perform milling operations, and the support leg lifting module is used to drive the milling module to rise and fall; The rumble strip milling walking module is used to drive the milling module to walk, and transmits the walking detection signal to the control module during the walking process; The control module is used to control the start and stop of the rumble strip milling walking module and the milling module, and to receive the walking detection signal. Based on the walking detection signal, the control module controls the outrigger lifting module to switch between milling walking and lifting walking, so that when the milling module descends to contact the ground, the road milling operation is performed, and when the milling module rises away from the ground, the road milling operation is stopped, thus realizing intermittent rumble strip milling. The rumble strip milling and walking module includes a walking motor, a rumble strip walking wheel, and a walking detection unit. The output end of the walking motor is connected to the rumble strip walking wheel and is also connected to the controller via electrical signal. The controller can drive the walking motor to start and stop according to the walking start and stop signal. The rumble strip walking wheel is a regular pentagon with each side having a length of 30cm. The walking detection unit is used to detect the walking distance of the rumble belt walking wheel, generate a walking detection signal and transmit it to the controller. The controller can control the raising and lowering of the outrigger lifting module according to the received walking detection signal. The walking detection unit includes a proximity switch and a sensing iron plate. The rumble belt walking wheel is mounted on the milling module via a mounting bracket, and the proximity switch is mounted on the mounting bracket. The number of induction iron plates is 5, which are respectively set on the 5 corners of the rumble belt traveling wheel. When the induction iron plate approaches the proximity switch, the proximity switch can output a high-level signal to the controller. The controller can accumulate the received high-level signals to determine the traveling distance of the milling module, and control the raising and lowering of the outrigger lifting module according to the traveling distance; The travel distance is divided into milling travel distance and lifting travel distance. When the milling travel distance reaches the set value, the controller controls the outrigger lifting module to rise and enter the lifting travel stage. When the lifting travel distance reaches the set value, the controller controls the outrigger lifting module to descend and enter the milling travel stage.

2. The intermittent polypus resection system according to claim 1, wherein, The control module includes a control panel and a controller connected by electrical signals. The control panel is used to output intermittent rhinoceros milling operation signals to the controller. The controller is used to receive the intermittent rhinoceros milling operation signals and control the start and stop of the rhinoceros milling walking module and the milling module according to the intermittent rhinoceros milling operation signals.

3. The intermittent polypus resection system according to claim 2, wherein, The intermittent rumble strip milling operation signal includes a walking start / stop signal, a milling start / stop signal, and rumble strip milling configuration information. The rumble strip milling configuration information includes a milling walking distance setting value, a lifting walking distance setting value, and a rumble strip milling lifting height parameter.

4. The intermittent polypus resection system according to claim 1, wherein The outrigger lifting module includes a solenoid valve, an outrigger hydraulic cylinder, and a cylinder position sensor. The outrigger hydraulic cylinder is used to drive the milling module to rise and fall. The solenoid valve is located in the oil circuit of the outrigger hydraulic cylinder and is electrically connected to the controller. The controller can control the on / off state of the solenoid valve according to the walking distance to drive the outrigger hydraulic cylinder to extend and retract. The cylinder position sensor is used to monitor the extension and retraction state of the outrigger hydraulic cylinder and transmit it to the controller.

5. The intermittent polypus resection system according to claim 4, wherein, The extension and retraction accuracy of the outrigger hydraulic cylinder is 1mm.

6. The intermittent rumble strip milling system according to claim 1, characterized in that, The milling module includes a milling motor and a milling drum. The output end of the milling motor is connected to the milling drum and is used to drive the milling drum to perform milling operations.

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