Road de-icing devices, de-icing trucks, and de-icing methods to prevent secondary icing

Abstract

This invention discloses a road de-icing device, de-icing vehicle, and de-icing method to avoid secondary icing. The de-icing device includes a bracket, a milling cutter module, a loading assembly, and a drive module. The bracket has a first mounting line and a second mounting line. The milling cutter module includes a first milling cutter group and a second milling cutter group. The first milling cutter group includes at least two first milling cutters spaced apart along the first mounting line and rotatably mounted on the bracket. The second milling cutter group includes at least two second milling cutters spaced apart along the second mounting line and rotatably mounted on the bracket. The loading assembly is detachably connected to the bracket and is used to connect the de-icing vehicle. The drive module includes multiple first drive components and multiple second drive components mounted on the bracket. The road de-icing device of this invention can avoid secondary icing of the road surface while performing efficient de-icing operations. Furthermore, the loading assembly can accommodate different types of de-icing vehicles, enabling flexible assembly and disassembly of the de-icing device.

Description

Technical Field

[0001] This invention belongs to the technical field of de-icing equipment, and more specifically, relates to a road de-icing device, de-icing vehicle, and de-icing method to avoid secondary icing. Background Technology

[0002] Freezing rain is a meteorological disaster that is prone to occur in winter. The icy roads caused by freezing rain not only pose a great safety hazard to industries such as transportation, causing delays in logistics and transportation, and interruptions in public transportation, resulting in economic losses to the transportation industry, but also pose a serious threat to public travel safety, becoming a difficult problem to ensure road safety in winter.

[0003] To address the problem of icy roads, common de-icing methods include manual de-icing, chemical de-icing, and mechanical de-icing. Manual de-icing mainly relies on tools such as shovels and picks to directly remove the ice layer from the road surface by hand; chemical de-icing uses chemical agents such as salts, taking advantage of their property of lowering the freezing point to melt the ice layer; mechanical de-icing uses specialized de-icing devices, such as milling cutters and scrapers, to physically remove the ice layer.

[0004] While manual de-icing has a high ice removal rate, it is inefficient and cannot quickly complete road clearing tasks under the influence of freezing rain. Chemical de-icing, although fast-acting, can damage road surfaces and has a significant environmental impact. Existing mechanical de-icing devices are highly efficient, but the ice debris left after removal can easily lead to secondary icing. Furthermore, these devices require different sizes to accommodate different de-icing truck models, making them less flexible and convenient to use. Summary of the Invention

[0005] In view of the above-mentioned defects or improvement needs of the prior art, the present invention provides a road de-icing device, de-icing vehicle and de-icing method to avoid secondary icing. It can avoid secondary icing on the road surface while performing efficient de-icing operations, and can also be adapted to different models of de-icing vehicles by loading components, so as to realize flexible assembly and disassembly of the de-icing device.

[0006] To achieve the above objectives, the present invention provides a road de-icing device to avoid secondary icing, comprising: A bracket, on which a first mounting line and a second mounting line are provided; The milling cutter module includes a first milling cutter group and a second milling cutter group. The first milling cutter group includes at least two first milling cutters that are spaced apart along the first mounting line and rotatably mounted on the bracket. The second milling cutter group includes at least two second milling cutters that are spaced apart along the second mounting line and rotatably mounted on the bracket. A first milling cutter or a second milling cutter is disposed at the intersection of the first mounting line and the second mounting line. The rotation directions of the first milling cutter and the second milling cutter are opposite. The loading assembly for connecting the de-icing vehicle is detachably connected to the bracket; The system also includes a drive module comprising a plurality of first drive components and a plurality of second drive components mounted on the bracket. Each first drive component and each second drive component is connected to the first milling cutter and the second milling cutter, respectively, for driving the corresponding milling cutter to rotate and lift, thereby achieving de-icing operation.

[0007] Furthermore, both the first driving member and the second driving member are hydraulic driving members, and the hydraulic driving member includes a piston rod and a hydraulic motor; Furthermore, the driving end of the piston rod is connected to the first milling cutter or the second milling cutter, and the hydraulic motor is rotatably connected to the first milling cutter or the second milling cutter via a coupling.

[0008] Furthermore, the hydraulic drive component includes: a drive motor, a hydraulic pump, a hydraulic oil tank, a hydraulic cylinder, and a solenoid directional valve; Furthermore, the drive motor drives the hydraulic pump, which is connected to the hydraulic oil tank, the hydraulic cylinder, and the hydraulic motor via the electromagnetic reversing valve. The hydraulic pump pumps the hydraulic oil in the hydraulic oil tank to the hydraulic cylinder to drive the piston rod to reciprocate, thereby driving the first or second milling cutter to rise and fall. And a pump for pumping hydraulic oil from the hydraulic tank to the hydraulic motor to drive the rotor of the hydraulic motor to rotate, thereby driving the first milling cutter or the second milling cutter to rotate.

[0009] Furthermore, the drive module includes a control module and a pressure sensor. The electromagnetic reversing valve, the pressure sensor, and the drive motor are all communicatively connected to the control module. The control module is used to receive signals from the pressure sensor and to control the start and stop of the drive motor and the opening and closing of the electromagnetic reversing valve.

[0010] Furthermore, the loading assembly includes a loading rack that is detachably connected to the bracket by screws.

[0011] Furthermore, the loading frame is provided with a support rod and a drive rod, the support rod and the drive rod are rotatably connected to the loading frame, the drive end of the drive rod is rotatably connected to the support rod, the bracket is provided with a central connecting ring, and the support rod is connected to the central connecting ring on the bracket through a chain to achieve auxiliary fixation of the loading frame and the bracket.

[0012] Furthermore, the loading assembly also includes a loading seat, which is detachably connected to the bracket by screws and detachably connected to the bottom of the de-icing vehicle by the screws.

[0013] Furthermore, the bracket is provided with multiple pulley brackets, which are fixedly connected to the bracket via a fixing frame.

[0014] Furthermore, a road de-icing vehicle includes the aforementioned road de-icing device for preventing secondary icing, wherein the V-shaped apex formed by the first mounting line and the second mounting line is aligned with the driving direction of the de-icing vehicle.

[0015] According to another aspect of the present invention, a de-icing method for avoiding secondary icing is provided, wherein the de-icing device for avoiding secondary icing includes: S100: When the de-icing operation begins, the control module controls the drive motor to start and the inlet, first outlet and second outlet of the solenoid directional valve to open. The drive motor drives the hydraulic pump to draw hydraulic oil from the hydraulic oil tank. The hydraulic pump pumps the hydraulic oil to the hydraulic cylinder and hydraulic motor through the solenoid directional valve. The hydraulic cylinder drives the piston rod to descend towards the ice surface. The piston rod drives the corresponding first or second milling cutter to descend towards the ice surface. At the same time, the hydraulic motor drives the rotor to rotate, thereby driving the corresponding first or second milling cutter to rotate, and the rotation directions of any first or second milling cutter are opposite. S200: After the first and second milling cutters come into contact with the ice surface, they perform milling to remove ice. The pressure sensor detects the pressure signal of the hydraulic cylinder and sends the pressure signal to the control module. The control module sets the pressure signal when milling the ice surface to the normal pressure value when performing the de-icing operation. S300: When the data transmitted from the pressure sensor to the control module remains unchanged, that is, when the pressure signal is at the normal pressure value, the position of the piston rod and the rotation speed of the milling cutter module also remain unchanged, and the de-icing device maintains a stable working state. S400: After the de-icing operation is completed, the control module controls the drive motor to stop and the inlet, first outlet and second outlet of the solenoid reversing valve to close. The milling cutter module is raised away from the road surface and stops rotating, and the de-icing device returns to its initial state.

[0016] In summary, compared with the prior art, the above-described technical solutions conceived by this invention can achieve the following beneficial effects: 1. A road de-icing device of the present invention, during de-icing operations, utilizes a first mounting line and a second mounting line arranged in a V-shape on a support frame. This allows a first set of milling cutters to be spaced apart along the first mounting line and a second set of milling cutters to be spaced apart along the second mounting line, with a single milling cutter shared at the intersection of the two sets of mounting lines. This V-shaped layout effectively expands the de-icing coverage area, reduces overlapping areas, and improves de-icing efficiency. Simultaneously, the first and second milling cutters rotate in opposite directions, pushing the broken ice chips to both sides of the V-shape during high-speed milling of the ice layer, preventing ice chips from accumulating in the middle of the road surface and preventing secondary icing. Furthermore, this road de-icing device is adaptable to different models of de-icing vehicles through a loading component. The loading frame can be detachably connected to the support frame and the front end of a small de-icing vehicle via screws, and the loading seat can be detachably connected to the support frame and the bottom of a large de-icing vehicle via screws, thereby enabling flexible assembly and disassembly of the de-icing device.

[0017] 2. A road de-icing device of the present invention, wherein each driving component in the driving template drives the corresponding milling cutter individually, enabling independent rotation and lifting of a single milling cutter. When encountering an obstacle, a single milling cutter can avoid the obstacle while the other milling cutters work normally, thereby minimizing the impact of obstacles on de-icing operations.

[0018] 3. The road de-icing device of the present invention, wherein the control template, by combining with a pressure sensor, can receive pressure signals and control the opening and closing of the drive motor and the electromagnetic reversing valve, automatically adjusting the lifting and rotation speed of the milling cutter, thereby improving the automation and safety of the de-icing operation.

[0019] 4. In a road de-icing device of the present invention, a slider coupling passes through the inside of a sleeve and is rotatably connected to a milling cutter. The milling cutter is raised and lowered along with the sleeve. The raising and lowering are not affected during the rotation process, so that the raising and lowering and rotation of the milling cutter module do not interfere with each other. This design makes the de-icing device more compact.

[0020] 5. In a road de-icing device of the present invention, the auxiliary connecting ring is connected to the support rod by other chains according to the actual situation, thereby further strengthening the connection stability between the loading frame and the support.

[0021] 6. A road de-icing device of the present invention, wherein a pulley bracket is fixedly connected to a support via a fixing frame, and the pulley bracket is used to provide auxiliary support when the de-icing device performs de-icing operations to ensure that the de-icing operations are carried out smoothly. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of a road de-icing device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the bottom structure of a road de-icing device according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the rear structure of a road de-icing device according to an embodiment of the present invention; Figure 4 This is a schematic diagram of a road de-icing device with a loading seat according to an embodiment of the present invention; Figure 5 This is a schematic diagram of a road surface de-icing method according to an embodiment of the present invention.

[0024] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-bracket; 2-milling cutter module; 3-piston rod; 4-hydraulic motor; 5-slider coupling; 6-sleeve; 7-loading frame; 8-loading seat; 9-support rod; 10-drive rod; 11-chain; 12-center connecting ring; 13-auxiliary connecting ring; 14-pulley bracket; 15-fixed frame; 16-first milling cutter; 17-second milling cutter. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0026] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used solely for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In the description of the present invention, unless otherwise stated, "a plurality of" means two or more. Furthermore, the terms "first" and "second" are merely used for descriptive distinction and have no special meaning.

[0029] like Figure 1-4 As shown, this embodiment of the invention provides a road de-icing device. A support 1 serves as the core load-bearing structure, with a first mounting line and a second mounting line arranged in a V-shape on its surface. A milling cutter module 2 includes a first set of milling cutters spaced along the first mounting line and a second set of milling cutters spaced along the second mounting line. The two sets of milling cutters share a single milling cutter at the intersection of the mounting lines, and the first and second milling cutters rotate in completely opposite directions. Driven by a drive module, it can efficiently mill the ice surface and sweep ice chips away to both sides. The drive module includes multiple independent first and second drive components. Each first drive component drives a first milling cutter individually, and each second drive component drives a second milling cutter individually, controlling the rotation and lifting of the corresponding milling cutter. The loading assembly includes a loading frame 7 that can be connected to the support 1 and the front end of a small de-icing vehicle via screws, and a loading seat 8 that can be connected to the support 1 and the bottom of a large de-icing vehicle via screws. The connection position and method can be selected according to the specific model of the de-icing vehicle. This structural design, through the V-shaped milling cutter layout and opposite rotation, effectively prevents ice chips from accumulating in the middle of the road surface and forming secondary icing. With the independent control of the drive module, the stability of the de-icing operation is improved. At the same time, with the detachable loading components, it enables flexible loading of different models of de-icing trucks.

[0030] like Figure 1As shown, the bracket 1 has a first mounting line and a second mounting line, which form a V-shape and are used to indicate the installation position of the milling cutter module 2. The apex of the V-shape formed by the first and second mounting lines is consistent with the driving direction of the de-icing truck. When the de-icing truck moves forward, the milling cutter at the apex of the V-shape contacts the ice layer first. As the vehicle moves, the milling cutter groups on both sides gradually expand the working range laterally, so that the milling cutter module 2 as a whole forms a fan-shaped de-icing area that widens from narrow to wide. This layout has significant advantages over the traditional straight-line milling cutter group, avoiding the overlapping of operations of the traditional straight-line milling cutters, reducing de-icing dead angles, significantly expanding the de-icing coverage per unit time, and effectively improving de-icing efficiency while ensuring thorough de-icing.

[0031] like Figure 2 As shown, the milling cutter module 2 includes a first milling cutter group and a second milling cutter group. The first milling cutter group includes at least two first milling cutters 16 spaced apart along a first mounting line and rotatably mounted on the bracket 1. The second milling cutter group includes at least two second milling cutters 17 spaced apart along a second mounting line and rotatably mounted on the bracket 1. A first milling cutter 16 or a second milling cutter 17 is positioned at the intersection of the first and second mounting lines. This design ensures the compactness of the two milling cutter groups, forming a continuous and complete de-icing coverage area. Furthermore, the rotation directions of the first milling cutter 16 and the second milling cutter 17 are opposite. When the first milling cutter 16 rotates towards one side of the V-shape, the second milling cutter 17 rotates towards the other side of the V-shape. During high-speed milling of the ice layer, the two milling cutters sweep the broken ice chips away to both sides of the V-shaped layout, avoiding the problem of ice chips accumulating in the middle of the road surface in traditional de-icing devices, thus preventing secondary icing of ice chips in the center of the road.

[0032] like Figure 3 and Figure 4As shown, the loading assembly includes a loading frame 7 and a loading seat 8. The loading frame 7 is used to connect a small de-icing truck and a de-icing device, while the loading seat 8 is used to connect a large de-icing truck and a de-icing device. The terms "large de-icing truck" and "small de-icing truck" are simply classifications of de-icing trucks; the de-icing device provided in this embodiment can be flexibly loaded according to the actual conditions of the de-icing truck. The loading frame 7 is detachably connected to the bracket 1 by screws and can also be detachably connected to the front end of the small de-icing truck by screws. The loading frame 7 is equipped with a support rod 9 and a drive rod 10, which are rotatably connected to the loading frame 7. The drive end of the drive rod 10 is rotatably connected to the support rod 9, providing support for the support rod 9. The bracket 1 is equipped with a central connecting ring 12, and the support rod 9 and the central connecting ring 12 are connected by a chain 11, thereby achieving auxiliary fixation of the loading frame 7 and the bracket 1. The loading seat 8 is detachably connected to the bracket 1 by screws and can also be detachably connected to the bottom of the large de-icing truck by screws. Alternatively, the drive rod 10 can also be a hydraulic rod. The loading component determines the connection position and installation method between the de-icing device and the de-icing truck based on the specific model of the de-icing truck, thereby enabling the de-icing device to flexibly adapt to different models of de-icing trucks.

[0033] like Figure 1 and Figure 2 As shown, the drive module includes multiple first drive components and multiple second drive components mounted on the bracket 1. Each first drive component drives and connects to a first milling cutter 16 for rotating and raising / lowering the milling cutter. Each second drive component drives and connects to a second milling cutter 17 for rotating and raising / lowering the milling cutter. Each drive component connects to a corresponding milling cutter, thereby enabling independent control of any first milling cutter 16 or any second milling cutter 17. This design is used to control the raising / lowering of any first milling cutter 16 or any second milling cutter 17 and complete individual obstacle avoidance when the de-icing device encounters obstacles during de-icing operations. The other first milling cutters 16 and second milling cutters 17 continue to operate normally, thereby minimizing the impact of road obstacles on de-icing operations.

[0034] Both the first and second driving components are hydraulic drives, each comprising a drive motor, a hydraulic pump, a hydraulic tank, a hydraulic cylinder, a piston rod 3, a solenoid directional valve, and a hydraulic motor 4. The drive motor drives the hydraulic pump, which is connected to the hydraulic tank, hydraulic cylinder, and hydraulic motor 4 via the solenoid directional valve. The solenoid directional valve has an inlet, a first outlet, and a second outlet. The inlet is connected to the hydraulic pump, the first outlet to the hydraulic cylinder, and the second outlet to the hydraulic motor 4. The solenoid directional valve can selectively control the on / off state of the inlet, the first outlet, and the second outlet, thereby controlling the hydraulic cylinder and the hydraulic motor 4. This design is used to separately control the lifting and rotating of the milling cutter module 2. The drive motor drives the hydraulic pump to pump hydraulic oil from the hydraulic tank to the hydraulic cylinder through the first outlet of the solenoid directional valve, thereby driving the piston rod 3 to reciprocate. The driving end of the piston rod 3 is connected to the corresponding first milling cutter 16 or the corresponding second milling cutter 17, thereby driving the corresponding first milling cutter 16 or the corresponding second milling cutter 17 to rise and fall, so that the milling cutter module 2 can descend to remove ice and rise to avoid obstacles when the de-icing device is performing de-icing operations. The drive motor also drives the hydraulic pump to pump hydraulic oil from the hydraulic tank to the hydraulic motor 4 through the second outlet of the solenoid directional valve, thereby driving the rotor of the hydraulic motor 4 to rotate. The hydraulic motor 4 is rotatably connected to the corresponding first milling cutter 16 or the corresponding second milling cutter 17 through the slider coupling 5, thereby driving the corresponding first milling cutter 16 or the corresponding second milling cutter 17 to rotate, so that the de-icing device can perform rotary milling to remove ice from the ice surface. In practical applications, the hydraulic circuits of the hydraulic motors 4 corresponding to the first milling cutter 31 and the second milling cutter 32 are installed in opposite ways, and thus the rotation directions of the first milling cutter 31 and the second milling cutter 32 are opposite, thereby achieving the aforementioned function of preventing secondary icing of the road surface.

[0035] The hydraulic cylinder is equipped with a control module and a pressure sensor. The electromagnetic directional valve, pressure sensor, and drive motor are all communicatively connected to the control module. The control module receives signals from the pressure sensor and controls the start and stop of the drive motor and the opening and closing of the electromagnetic directional valve. In practical applications, after the first milling cutter 16 and the second milling cutter 17 contact the ice surface, they perform milling to remove ice. The pressure sensor detects the pressure signal of the hydraulic cylinder and transmits the pressure signal to the control module. The control module sets the pressure signal during ice milling to the normal pressure value for de-icing operations. Because ice is a brittle material, when either the first milling cutter 16 or the second milling cutter 17 contacts the road surface or other obstacles, the pressure exerted on the corresponding first milling cutter 16 or the corresponding second milling cutter 17 from the road surface or other obstacles is greater than the pressure applied by the ice surface. The pressure signal value detected by the pressure sensor will suddenly rise. After receiving the abnormal pressure signal, the control module controls the drive motor to stop and closes the inlet, first outlet, and second outlet of the electromagnetic directional valve. The hydraulic cylinder drives the piston rod 3 to rise away from the road surface. The stopper rod 3 drives the corresponding first milling cutter 16 or the corresponding second milling cutter 17 to rise away from the ice surface. The hydraulic motor 4 drives the rotor to decelerate, thereby reducing the rotation speed of the corresponding first milling cutter 16 or the corresponding second milling cutter 17 until the pressure signal fed back by the pressure sensor is less than or equal to the normal pressure value. This indicates that the corresponding first milling cutter 16 or the corresponding second milling cutter 17 has disengaged from the road surface or obstacle. The control module continues to control the start of the drive motor and the opening of the inlet, first outlet and second outlet of the electromagnetic reversing valve, thereby driving the corresponding first milling cutter 16 or the corresponding second milling cutter 17 to return to the working state when the pressure value is normal. During this period, other first milling cutters 16 or other second milling cutters 17 maintain normal working state. This design can realize the function of individual obstacle avoidance of any first milling cutter 16 or any second milling cutter 17.

[0036] like Figure 1 and Figure 2 As shown, a sleeve 6 is provided between the piston rod 3 and the slider coupling 5 and the corresponding first milling cutter 16 or the corresponding second milling cutter 17. The piston rod 3 is connected to the upper end of the sleeve 6. The slider coupling 5 passes through the inside of the sleeve 6 and is rotatably connected to the corresponding first milling cutter 16 or the corresponding second milling cutter 17. When the hydraulic cylinder drives the piston rod 3 and the sleeve 6 to rise and fall, the corresponding slider coupling 5 follows the sleeve 6 to rise and fall. At the same time, the corresponding slider coupling 5 drives the corresponding first milling cutter 16 or the corresponding second milling cutter 17 to rise and fall. The slider coupling 5 does not affect the piston rod 3 driving the sleeve 6 to rise and fall during the rotation process, so that the rising and falling and rotation of the milling cutter module 2 do not interfere with each other. This design makes the structure of the de-icing device more compact.

[0037] like Figure 1As shown, the bracket 1 is provided with an auxiliary connecting ring 13. The auxiliary connecting ring 13 is connected to the support rod 9 through other chains according to the actual situation, which further strengthens the connection stability between the loading frame 7 and the bracket 1.

[0038] like Figure 1 As shown, a wheeled bracket 14 is provided on the bracket 1. The wheeled bracket 14 is fixedly connected to the bracket 1 through a fixing frame 15. The wheeled bracket 14 is used to provide auxiliary support when the de-icing device performs de-icing operations to ensure that the de-icing operation is carried out smoothly.

[0039] like Figure 5 As shown, in another embodiment of the present invention, a method for de-icing a road surface is provided, comprising the following steps: S100. When the de-icing operation begins, the control module controls the drive motor to start and the inlet, first outlet and second outlet of the solenoid directional valve to open. The drive motor drives the hydraulic pump to draw hydraulic oil from the hydraulic oil tank. The hydraulic pump pumps the hydraulic oil to the hydraulic cylinder and hydraulic motor 4 through the solenoid directional valve. The hydraulic cylinder drives the piston rod 3 to descend towards the ice surface. The piston rod 3 drives the corresponding first milling cutter 16 or the corresponding second milling cutter 17 to descend towards the ice surface. At the same time, the hydraulic motor 4 drives the rotor to rotate, thereby driving the corresponding first milling cutter 16 or the corresponding second milling cutter 17 to rotate, and the rotation directions of any first milling cutter 16 and any second milling cutter are opposite. S200, the first milling cutter 16 and the second milling cutter 17 come into contact with the ice surface to perform milling and de-icing. The pressure sensor detects the pressure signal of the hydraulic cylinder and sends the pressure signal to the control module. The control module sets the pressure signal when milling the ice surface to the normal pressure value when performing de-icing operation. S300. When the data transmitted from the pressure sensor to the control module remains unchanged, that is, when the pressure signal is at the normal pressure value, the position of the piston rod 3 and the rotation speed of the milling cutter module 2 also remain unchanged, and the de-icing device maintains a stable working state. S400 After the de-icing operation is completed, the control module controls the drive motor to stop and the inlet, first outlet and second outlet of the electromagnetic reversing valve to close. The milling cutter module 2 is lifted away from the road surface and stops rotating, and the de-icing device returns to its initial state.

[0040] In step S300, when any of the first milling cutters 16 or any of the second milling cutters 17 comes into contact with the road surface or other obstacles, the pressure signal detected by the pressure sensor will suddenly rise. After receiving the abnormal pressure signal, the control module controls the drive motor to stop and the inlet, first outlet, and second outlet of the electromagnetic reversing valve to close. The hydraulic cylinder drives the piston rod 3 to rise away from the road surface. The piston rod 3 drives the corresponding first milling cutter 16 or the corresponding second milling cutter 17 to rise away from the ice surface. The hydraulic motor 4 drives the rotor to decelerate, thereby reducing the speed of the corresponding first milling cutter 16 or the corresponding second milling cutter 17 until the pressure signal fed back by the pressure sensor is less than or equal to the normal pressure value, indicating that the corresponding first milling cutter 16 or the corresponding second milling cutter 17 has broken away from the road surface or obstacle. The control module continues to control the drive motor to start and the inlet, first outlet, and second outlet of the electromagnetic reversing valve to open, thereby driving the corresponding first milling cutter 16 or the corresponding second milling cutter 17 to return to the working state when the pressure value is normal. During this period, the other first milling cutters 16 or other second milling cutters 17 maintain normal working state.

[0041] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A road de-icing device to prevent secondary icing, used in a road de-icing vehicle, characterized in that, include: The bracket (1) is provided with a first mounting line and a second mounting line; The milling cutter module (2) includes a first milling cutter (16) group and a second milling cutter (17) group. The first milling cutter (16) group includes at least two first milling cutters (16) that are spaced apart along the first mounting line and rotatably disposed on the bracket (1). The second milling cutter (17) group includes at least two second milling cutters (17) that are spaced apart along the second mounting line and rotatably disposed on the bracket (1). A first milling cutter (16) or a second milling cutter (17) is disposed at the intersection of the first mounting line and the second mounting line. The rotation directions of the first milling cutter (16) and the second milling cutter (17) are opposite. The loading assembly for connecting the de-icing vehicle is detachably connected to the bracket (1); And a drive module, which includes a plurality of first drive components and a plurality of second drive components disposed on the bracket (1), each of the first drive components and the second drive components being connected to the first milling cutter (16) and the second milling cutter (17) respectively, for driving the corresponding milling cutter to rotate and lift, thereby realizing the de-icing operation; The V-shaped apex formed by the first mounting line and the second mounting line faces the same direction as the de-icing vehicle's travel direction.

2. The road de-icing device for avoiding secondary icing according to claim 1, characterized in that, Both the first driving component and the second driving component are hydraulic driving components, and the hydraulic driving component includes a piston rod (3) and a hydraulic motor (4). The driving end of the piston rod (3) is connected to the first milling cutter (16) or the second milling cutter (17), and the hydraulic motor (4) is rotatably connected to the first milling cutter (16) or the second milling cutter (17) through a coupling.

3. A road de-icing device for avoiding secondary icing according to claim 2, characterized in that, The hydraulic drive components include: a drive motor, a hydraulic pump, a hydraulic oil tank, a hydraulic cylinder, and a solenoid directional valve; The drive motor drives the hydraulic pump. The hydraulic pump is connected to the hydraulic oil tank, the hydraulic cylinder and the hydraulic motor (4) through the electromagnetic reversing valve. The hydraulic pump is used to pump the hydraulic oil in the hydraulic oil tank to the hydraulic cylinder to drive the piston rod (3) to reciprocate, thereby driving the first milling cutter (16) or the second milling cutter (17) to rise and fall. And for pumping hydraulic oil from the hydraulic tank to the hydraulic motor (4) to drive the rotor of the hydraulic motor (4) to rotate, thereby driving the first milling cutter (16) or the second milling cutter (17) to rotate.

4. A road de-icing device for avoiding secondary icing according to claim 3, characterized in that, The drive module includes a control module and a pressure sensor. The electromagnetic reversing valve, the pressure sensor, and the drive motor are all communicatively connected to the control module. The control module is used to receive signals from the pressure sensor and to control the start and stop of the drive motor and the opening and closing of the electromagnetic reversing valve.

5. A road de-icing device for avoiding secondary icing according to any one of claims 1-4, characterized in that, The loading assembly includes a loading rack (7), which is detachably connected to the bracket (1) by screws.

6. A road de-icing device for avoiding secondary icing according to claim 5, characterized in that, The loading frame (7) is provided with a support rod (9) and a drive rod (10). The support rod (9) and the drive rod (10) are rotatably connected to the loading frame (7). The drive end of the drive rod (10) is rotatably connected to the support rod (9). The bracket (1) is provided with a central connecting ring (12). The support rod (9) is connected to the central connecting ring (12) on the bracket (1) through a chain (11) to achieve auxiliary fixation of the loading frame (7) and the bracket (1).

7. A road de-icing device for avoiding secondary icing according to claim 6, characterized in that, The loading assembly also includes a loading seat (8), which is detachably connected to the bracket (1) by screws and can be detachably connected to the bottom of the de-icing vehicle by the screws.

8. A road de-icing device for avoiding secondary icing according to any one of claims 1-4, characterized in that, The bracket (1) is provided with multiple pulley brackets (14), and the pulley brackets (14) are fixedly connected to the bracket (1) through a fixing frame (15).

9. A road de-icing vehicle, characterized in that, The road surface de-icing device for avoiding secondary icing is described in any one of claims 1-8.

10. A de-icing method to avoid secondary icing, characterized in that, The application of the de-icing device for preventing secondary icing as described in any one of claims 1-8 includes: S100: When the de-icing operation begins, the control module controls the drive motor to start and the inlet, first outlet and second outlet of the electromagnetic reversing valve to open. The drive motor drives the hydraulic pump to draw hydraulic oil from the hydraulic oil tank. The hydraulic pump pumps the hydraulic oil to the hydraulic cylinder and hydraulic motor (4) through the electromagnetic reversing valve. The hydraulic cylinder drives the piston rod (3) to descend towards the ice surface. The piston rod (3) drives the corresponding first milling cutter (16) or the corresponding second milling cutter (17) to descend towards the ice surface. At the same time, the hydraulic motor (4) drives the rotor to rotate, thereby driving the corresponding first milling cutter (16) or the corresponding second milling cutter (17) to rotate. The rotation directions of any first milling cutter (16) and any second milling cutter (17) are opposite. S200: After the first milling cutter (16) and the second milling cutter (17) come into contact with the ice surface, they perform milling to remove ice. The pressure sensor detects the pressure signal of the hydraulic cylinder and sends the pressure signal to the control module. The control module sets the pressure signal when milling the ice surface to the normal pressure value when performing the de-icing operation. S300: When the data transmitted from the pressure sensor to the control module remains unchanged, that is, when the pressure signal is at the normal pressure value, the position of the piston rod (3) and the rotation speed of the milling cutter module (2) also remain unchanged, and the de-icing device maintains a stable working state. S400: After the de-icing operation is completed, the control module controls the drive motor to stop and the inlet, first outlet and second outlet of the electromagnetic reversing valve to close. The milling cutter module (2) is lifted away from the road surface and stops rotating. The de-icing device returns to its initial state.

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