Bridge type slotting machine special for mobile heating cable ice and snow melting pavement and construction method thereof

Abstract

The application discloses a mobile heating cable snow-melting road special bridge type grooving machine, which comprises a bridge type sliding mechanism capable of moving horizontally and longitudinally, a walking mechanism arranged at the bottom end of the bridge type sliding mechanism, a lifting rotary grooving mechanism for grooving and a cooling and recycling mechanism for assisting in the grooving process, which are arranged on the bridge type sliding mechanism, the lifting and rotary actions of the lifting rotary grooving mechanism are driven through corresponding lifting mechanisms and rotary mechanisms, the bridge type sliding mechanism moves to the two side beam racks through the sliding blocks along the determined direction of the beam guide rail. The lifting rotary grooving mechanism can realize arbitrary grooving spacing, arbitrary grooving depth and rotary angle; the cooling and recycling mechanism can cool the lifting rotary grooving mechanism and recycle the used cooling water and clean the stone chips in the grooves. The application is convenient, time-saving and labor-saving, can arbitrarily rotate once to form the required laying form of the heating cable, accurately controls the grooving depth, direction and spacing, and significantly improves the endurance of the grooving machine.

Description

Technical Field

[0001] This invention relates to the field of road surface heating cable de-icing and snow melting construction, specifically a mobile bridge-type grooving machine for de-icing and snow melting roads. Background Technology

[0002] Heating cables for melting snow and ice on roads use heating cables as an internal heat source to transfer heat to the road surface, keeping the surface temperature above freezing and thus melting snow and ice. In recent years, heating cables for melting snow and ice on roads have received increasing attention due to their high efficiency, green and environmentally friendly characteristics.

[0003] When heating cables are used as internal heat sources, grooves need to be cut into the road surface to pre-embed the cables. Existing grooving equipment is generally a handheld grooving machine, which has the following main drawbacks during use:

[0004] (1) The handheld grooving machine vibrates a lot, and the person holding it needs to have a lot of hand strength, which is labor-intensive. In addition, due to the difficulty in controlling the hand strength, the grooving depth will be inconsistent and deviate from the predetermined grooving direction, resulting in different cable burial depths.

[0005] (2) The grooving equipment can only carve two grooves in a single round trip, and it requires an external water pipe to cool and remove dust from the grooving plate. It has low work efficiency and wastes water resources, and it requires a lot of effort to remove stone chips from the groove a second time.

[0006] (3) Most grooving equipment is used for grooving cement pavement for anti-slip purposes, and its grooving plates are all used to groove along a straight line. However, heating cables are usually laid in a serpentine or U-shaped pattern in the road surface; grooving equipment requires multiple operations to form the required laying pattern of the heating cable, which significantly reduces work efficiency.

[0007] In summary, for the purpose of heating cables melting ice and snow on road surfaces, there is an urgent need for a grooving machine that can solve the problems of existing grooving equipment being unable to form grooves for the laying of heating cables on the road surface in one go, inconsistent grooving depths, easy deviation of grooving direction, low grooving efficiency, and poor endurance of grooving equipment. Summary of the Invention

[0008] The purpose of this invention is to overcome the defects and shortcomings of the existing technology and provide a bridge-type grooving machine for mobile heating cables to melt ice and snow on roads, thus solving various problems existing in the prior art.

[0009] To achieve the above objectives, the present invention provides the following technical solution:

[0010] A bridge-type grooving machine for melting ice and snow on roads using mobile heating cables is characterized by: including a bridge-type sliding mechanism that can move laterally and longitudinally; a walking mechanism is provided at the bottom end of the bridge-type sliding mechanism; a lifting and rotating grooving mechanism for grooving that can be raised, lowered, and rotated 360° is mounted on the bridge-type sliding mechanism; and a cooling and recovery mechanism that plays an auxiliary role in the grooving process; the lifting and rotating actions of the lifting and rotating grooving mechanism are driven by the lifting mechanism and the rotating mechanism.

[0011] The lifting and rotating grooving mechanism includes a lifting mechanism and a rotating mechanism that are connected and transitionally fitted. The lifting mechanism is located above the rotating mechanism. The lifting mechanism includes a scissor lifting mechanism, which is driven by a lifting hydraulic cylinder. The top of the scissor lifting mechanism is connected and fixed to the crossbeam slider of the bridge sliding mechanism through a fixed seat. The rotating mechanism is connected to the bottom of the scissor lifting mechanism. The rotating mechanism consists of a rotating control box and a grooving mechanism. The rotating control box drives the grooving mechanism to complete the rotation action. The rotating control box is equipped with a worm gear rotating assembly, a servo motor, and a rotating shaft. The output end of the rotating shaft of the worm gear is connected to the grooving mechanism.

[0012] The grooving mechanism includes a dustproof and soundproof protective cover. A spline drive shaft is rotatably mounted on the bottom end of the dustproof and soundproof protective cover. Several grooving plates are mounted on the spline drive shaft at a certain interval. The grooving plates are arranged inside the dustproof and soundproof protective cover. The grooving action of the grooving plates is driven by a grooving plate drive motor at the end of the spline drive shaft.

[0013] The bridge-type sliding mechanism includes side beam frames on both sides and a crossbeam frame connected in the middle. Movable sliders are guided and installed on the side beam frames and the crossbeam frame respectively. Each slider includes a crossbeam slider and a side beam slider. The side beam frame includes a side beam guide rail. A reciprocating side beam synchronous belt drive structure is installed on the side of the side beam guide rail. The side beam slider on the side beam frame slides on the side beam guide rail via the side beam synchronous belt. The two ends of the crossbeam frame are respectively installed above the side beam sliders. The crossbeam frame includes a crossbeam guide rail. A reciprocating crossbeam synchronous belt drive structure is installed on the side of the crossbeam guide rail. The crossbeam slider on the crossbeam frame slides on the crossbeam guide rail via the crossbeam synchronous belt.

[0014] A touchscreen is installed above the side beam frame on one side. By controlling the touchscreen, code can be programmed directly according to the heating cable laying plan, and commands for the grooving path and grooving parameters can be sent to the rotating mechanism to achieve one-time grooving according to the heating cable laying method. The grooving direction of the lifting and rotating grooving mechanism can be precisely controlled by sliding the slider on the side beam guide rail. The side beam guide rail and its side beam synchronous belt are equipped with side beam protective covers to prevent damage to the synchronous belt transmission structure and to prevent dust during the grooving process. The crossbeam guide rail and its crossbeam synchronous belt are also equipped with crossbeam protective covers to prevent damage to the crossbeam synchronous belt and to prevent dust during the grooving process.

[0015] The traveling mechanism includes a frame that cooperates with the bridge sliding mechanism. The frame serves as the load-bearing structure of the traveling mechanism and is fixedly connected to the bridge sliding mechanism. Telescopic top support rods are respectively provided at the four corners of the frame. Traveling wheels are provided below the frame. The traveling wheels serve as the traveling structure of the traveling mechanism and can enable the traveling mechanism to move quickly on the road surface under the drive of the drive motor. Guide wheels are provided on the central axis below the frame. The guide wheels serve as the guiding structure of the traveling mechanism and can enable the traveling mechanism to move along the direction of the preset groove.

[0016] The lifting mechanism also includes a lifting height control ruler disposed on one side of the scissor lift mechanism. The scissor lift mechanism is controlled to fold and unfold by a lifting hydraulic cylinder, and the lifting height of the grooving mechanism is precisely determined by the lifting height control ruler.

[0017] The rotary control box contains a worm gear, a servo motor, and a rotating shaft. The servo motor drives the worm gear transmission structure. The rotating shaft is connected to the dustproof and soundproof protective cover via a coaxial flange. The rotation of the rotating shaft drives the dustproof and soundproof protective cover of the grooving mechanism to rotate. A spline drive shaft is rotatably installed inside the dustproof and soundproof protective cover. The grooving plates of the grooving plate group have spline grooves that can engage with the spline drive shaft. Each grooving plate is fixed to the spline drive shaft using clips. Any grooving spacing can be obtained by adjusting the distance between the grooving plates on the spline drive shaft.

[0018] The cooling recovery mechanism includes a cooling filter water tank, a water outlet pipe, a recovery device, and a blower. The cooling filter water tank is divided into two parts: a drawer-type filter box and a drawer-type water storage tank. A filter screen is installed between the two boxes. The water storage tank is connected to a water outlet pipe at the bottom. The filter box is connected to a blower on one side through a duct, so that a negative pressure is generated inside the filter box cavity during operation. The recovery device recovers the floating dust and stone chips generated during the grooving process, as well as the cooling water used to cool the grooving plate assembly.

[0019] The construction method of the mobile heating cable special bridge-type grooving machine for melting ice and snow on roads is characterized by the following specific construction steps:

[0020] S1: The walking mechanism uses the guide wheel and the walking wheel to initially keep the same straight line with the preset groove direction under the drive of the drive motor. The telescopic top support rod on the frame pushes the walking mechanism upward until the walking wheel and the guide wheel are suspended in the air. The slider of the side beam mechanism on both sides of the bridge sliding mechanism is driven so that the central axis of the crossbeam frame is corrected and kept in the same straight line with the preset groove direction.

[0021] S2: Install the grooving mechanism via the coaxial flange, and install a suitable grooving plate group according to the spacing d of the heating cables; record the initial distance between the grooving plate group of the grooving mechanism and the road surface as L, record the fully folded height displayed on the corresponding lifting height control ruler as S, and calculate the lowering height of the grooving mechanism as L+H according to the depth H of the groove to be engraved.

[0022] S3: Start the hydraulic control system of the lifting mechanism to control the lifting height of the scissor lift mechanism, so that the groove plate group on the grooving mechanism is grounded. At this time, the unfolded height of the scissor lift mechanism displayed on the lifting height control ruler is S+L. Then check again whether the groove plate group is coaxial with the preset grooving direction.

[0023] S4: Turn on the grooving blade drive and cooling recovery mechanism, and continue to use the hydraulic control system to lower the scissor lift mechanism to the height displayed on the lifting height control ruler as S+L+H. At this time, turn off the lifting mechanism control system.

[0024] S5: Input the G-codes for linear interpolation and circular interpolation in the CNC program on the control touch screen to control the linear grooving and rotary grooving of the grooving mechanism. The linear grooving distance is k / mm, the rotary grooving path is an arc, the radius of the circular grooving is T / mm, the speed feed for linear grooving is P1mm / min, and the speed feed for rotary grooving is P2mm / min. The path of a standard grooving cycle is as follows: (1) The grooving machine starts from the origin and executes the linear interpolation command along the pre-grooving direction of the heating cable, with a running distance of k / 2 / mm; (2) From the end position of the linear interpolation command, execute the counterclockwise circular interpolation command to groove an arc with a radius of T; (3) From the end position of the counterclockwise circular interpolation command, execute the linear interpolation command along the pre-grooving direction of the heating cable, with a running distance of k / 2 / mm; (4) From the end position of the linear interpolation command, execute the clockwise circular interpolation command to groove an arc with a radius of T. The G-code and corresponding process for the grooving mechanism's operation path in a specific grooving cycle are as follows:

[0025] First, enter the codes G90 and G21 to determine the absolute distance position and calculate it in metric units.

[0026] The second step is to input GOO X0Y0 to execute the quick positioning command and determine the initial position of the grooved piece group as the origin, that is, the initial point coordinates are (0, 0).

[0027] The third step is to input G01 Xk / 2Y0FP1 and execute the linear interpolation command. The grooved piece group moves from the initial point coordinates (0, 0) along a straight line to the end point coordinates (k / 2, 0) at a speed of P1 mm / min.

[0028] Fourth step, input G03Xk / 2YdRTFP2 to execute the counterclockwise circular interpolation command. The grooved blade group cuts the arc counterclockwise from the starting coordinate (k / 2,0) to the ending coordinate (k / 2,d). The radius of the arc is T and the moving speed is P2 mm / min.

[0029] Fifth step, input G01 X0YdFP1 to execute the linear interpolation command. The grooved piece group moves from the starting coordinate (k / 2,d) to the ending coordinate (0,d) along a straight line at a speed of P1mm / min.

[0030] Step 6: Input G02 X0Y2dRTFP2 to execute the clockwise circular interpolation command. The grooved plate group cuts an arc clockwise from the starting coordinate (0,d) to the ending coordinate (0,2d). The radius of the arc is T and the moving speed is P2 mm / min.

[0031] Step 7: Enter M2 to execute the program termination command.

[0032] S6: After completing the grooving, use the lifting mechanism to raise the rotating mechanism, check the groove depth and spacing, and at the same time turn off all equipment of the grooving machine, retract the telescopic top support rod, drive the traveling wheels, and carry out the grooving construction of the next area according to the above steps.

[0033] Compared with the prior art, the beneficial effects of the present invention are:

[0034] 1. Traditional road heating cable grooving machines groove along a fixed straight line, making it difficult to form the grooves required for the serpentine arrangement of heating cables in one go. This invention uses a 360° lifting and rotating grooving mechanism, which can rotate the grooving plate group at any angle to achieve grooving, forming the ideal groove in one go and improving work efficiency.

[0035] 2. Traditional road heating cable grooving machines are mostly handheld, making them inconvenient to move. This invention employs a mobile walking mechanism, allowing for easy movement of the grooving equipment to a designated location. Furthermore, traditional handheld road heating cable grooving machines are labor-intensive, generate significant vibration, and result in inconsistent grooving depths and deviations from the intended grooving direction. This invention utilizes a bridge-type sliding structure to fix the grooving direction of the machine, ensuring consistency in the grooving direction of the grooving plate assembly. The bridge-type sliding mechanism also allows for rapid lateral movement of the lifting and rotating grooving mechanism. Simultaneously, the lifting mechanism precisely controls the grooving depth, and by inputting programming code, the grooving path and parameters are accurately executed, effectively avoiding rework and improving work efficiency.

[0036] 3. Traditional road heating cable grooving machines use a single grooving blade for grooving, resulting in low grooving efficiency. Repeated grooving also causes inconsistent groove spacing. This invention can fix multiple sets of grooving blades with grooves at arbitrary intervals on the spline drive shaft using independent buckles, according to the grooving spacing requirements, so as to groove multiple grooves at one time, which significantly improves work efficiency.

[0037] 4. Traditional road heating cable grooving machines require an external water source for cooling and dust prevention of the grooving plates. Additionally, stone chips left in the grooves after grooving need to be removed separately, resulting in low grooving efficiency and a limited grooving environment. This invention's cooling and recovery mechanism, with its built-in water tank, can promptly cool and prevent dust from the grooving plate assembly. Simultaneously, utilizing its built-in filter box, fan, and recovery pipe, it can simultaneously recover and clean the cooling water and waste stone chips from the grooves, significantly improving grooving efficiency. Furthermore, the water tank and filter box feature a drawer-type design, facilitating timely replenishment of water to the water tank and removal of waste stone chips from the filter box. Attached Figure Description

[0038] Figure 1 This is a three-dimensional schematic diagram of the bridge-type grooving machine for melting ice and snow on roads, which is a mobile heating cable involved in this invention.

[0039] Figure 2 This is a schematic diagram of the walking mechanism and the bridge sliding mechanism involved in the present invention;

[0040] Figure 3 This is a schematic diagram of the cooling recovery mechanism involved in this invention;

[0041] Figure 4 This is a top view schematic diagram of the cooling recovery mechanism involved in this invention;

[0042] Figure 5 This is a schematic diagram of the lifting and rotating grooving mechanism involved in the present invention;

[0043] Figure 6 This is a schematic diagram of the worm gear transmission structure of the grooving mechanism involved in this invention;

[0044] Figure 7 This is a schematic diagram of the synchronous belt drive structure of the beam frame involved in this invention;

[0045] Figure 8 This is a schematic diagram of the grooved plate assembly involved in the present invention;

[0046] Figure 9 This is a schematic diagram of the grooving path of a standard grooving cycle grooving plate group involved in an example of the present invention.

[0047] Figure label:

[0048] 1. Walking mechanism; 2. Bridge-type sliding mechanism; 3. Cooling recovery mechanism; 4. Lifting and rotating grooving mechanism; 11. Telescopic top support rod; 12. Guide wheel; 13. Walking wheel; 14. Drive motor; 15. Frame; 21. Side beam frame; 22. Crossbeam frame; 23. Crossbeam slider; 24. Control touch screen; 25. Side beam guide rail; 26. Crossbeam guide rail; 27. Side beam slider; 28. Side beam protective cover; 29. ​​Side beam synchronous belt; 30. Crossbeam protective cover; 31. Crossbeam synchronous belt; 32. Cooling filter water tank; 33. Water outlet pipe; 34. Recovery device; 35. Blower. 321. Filter box; 322. Filter screen; 323. Water storage tank; 351. Air duct; 41. Lifting mechanism; 42. Rotating mechanism; 411. Lifting height control ruler; 412. Lifting hydraulic cylinder; 413. Scissor lift mechanism; 421. Rotating control box; 422. Grooving mechanism; 4211. Turbine; 4212. Worm gear; 4213. Servo motor; 4221. Grooved plate assembly; 4222. Drive motor; 4223. Dustproof and soundproof protective cover; 4224. Coaxial flange; 4225. Splined drive shaft; 4226. Snap-fit; 4227. Grooved plate. Detailed Implementation

[0049] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] See appendix Figure 1-9 ;

[0051] A mobile heating cable-type bridge-type grooving machine for melting ice and snow on roads, characterized in that: it includes a bridge-type sliding mechanism 2 that can move laterally and longitudinally; a traveling mechanism 1 is provided at the bottom end of the bridge-type sliding mechanism 2; a lifting and rotating grooving mechanism 4 for grooving that can be raised, lowered, and rotated 360° is mounted on the bridge-type sliding mechanism 2; and a cooling and recovery mechanism 3 that plays an auxiliary role in the grooving process. The lifting and rotating actions of the lifting and rotating grooving mechanism 4 are driven by a lifting mechanism 41 and a rotating mechanism 42; the lifting and rotating grooving mechanism 4 includes a lifting mechanism 41 and a rotating mechanism 42 that are connected and transitionally fitted; the lifting mechanism 41 is located above the rotating mechanism 42; the lifting mechanism 41 includes a scissor lifting mechanism 413; the scissor lifting mechanism 413 is driven by a lifting hydraulic cylinder 412; the top of the scissor lifting mechanism 413 is connected and fixed to the crossbeam slider 23 of the bridge-type sliding mechanism 2 through a fixed seat; the scissor... A rotating mechanism 42 is connected below the fork lifting mechanism 413. The rotating mechanism 42 consists of a rotating control box 421 and a grooving mechanism 422. The rotating control box 421 drives the grooving mechanism 422 to complete the rotation action. The rotating control box 421 is equipped with a turbine 4211, a worm gear 4212 rotating assembly, a servo motor 4213, and a rotating shaft 4214. The output end of the rotating shaft 4214 of the turbine is connected to the grooving mechanism 422. The grooving mechanism 422 includes a dustproof and soundproof protective cover 4223. A spline drive shaft 4225 is rotatably mounted on the bottom end of the dustproof and soundproof protective cover 4223. A plurality of grooving plates 4221 distributed at a certain interval are mounted on the spline drive shaft 4225. The grooving action of the grooving plates 4221 is driven by the drive motor 4222 at the end of the spline drive shaft 4225.

[0052] Specifically, the bridge-type sliding mechanism 2 includes side beam frames 21 on both sides and a crossbeam frame 22 connected in the middle. Movable sliders are respectively guided and installed on the side beam frames 21 and the crossbeam frame 22. The sliders include crossbeam sliders 23 and side beam sliders 27. The side beam frame 21 includes a side beam guide rail 25. A reciprocating side beam synchronous belt 29 transmission structure is installed on the side of the side beam guide rail 25. The side beam sliders 27 on the side beam frame 21 slide on the side beam guide rail 25 through the side beam synchronous belt 29. The two ends of the crossbeam frame 22 are respectively installed above the side beam sliders 27. The crossbeam frame 22 includes a crossbeam guide rail 26. A reciprocating crossbeam synchronous belt 31 transmission structure is installed on the side of the crossbeam guide rail 26. The crossbeam sliders 23 on the crossbeam frame 22 slide on the crossbeam guide rail 26 through the crossbeam synchronous belt 31.

[0053] Specifically, a control touch screen 24 is installed above the side beam frame 21 on one side. The control touch screen 24 can be used to directly program the code according to the heating cable laying scheme and send the grooving path and grooving parameter commands to the rotating mechanism 42 to achieve one-time grooving according to the heating cable laying form. The grooving direction of the lifting and rotating grooving mechanism 4 can be precisely controlled by the side beam slider 27 on the sliding side beam guide rail 25. The side beam guide rail 25 and its side beam synchronous belt 29 are provided with a side beam protective cover 28 to prevent the side beam synchronous belt 29 from being damaged and to prevent dust during the grooving process. The cross beam guide rail 26 and its cross beam synchronous belt 31 are respectively provided with a cross beam protective cover 30 to prevent the cross beam synchronous belt 31 from being damaged and to prevent dust during the grooving process.

[0054] Specifically, the walking mechanism 1 includes a frame 15 that cooperates with the bridge sliding mechanism 2. The frame 15 serves as the load-bearing structure of the walking mechanism 1 and is fixedly connected to the bridge sliding mechanism 2. Telescopic top support rods 11 are respectively provided at the four corners of the frame. Walking wheels 13 are provided below the frame. The walking wheels 13 serve as the walking structure of the walking mechanism (1). Under the drive of the drive motor 14, the walking mechanism 1 can move quickly on the road surface. A guide wheel 12 is provided on the central axis below the frame. The guide wheel 12 serves as the guiding structure of the walking mechanism 1 and can make the walking mechanism 1 move along the preset groove direction.

[0055] Specifically, the lifting mechanism 41 also includes a lifting height control ruler 411 disposed on one side of the scissor lift mechanism 413. The scissor lift mechanism 413 is controlled to fold and unfold by the lifting hydraulic cylinder 412, and the lifting height of the grooving mechanism 422 is accurately determined by the lifting height control ruler 411.

[0056] Specifically, the rotary control box 421 is internally equipped with a turbine 4211, a worm gear 4212, a servo motor 4213, and a rotary shaft 4214. The servo motor 4213 drives the turbine 4211 and worm gear 4212 transmission structure. The rotary shaft 4214 is connected to the dustproof and soundproof protective cover 4223 via a coaxial flange 4224. The rotation of the rotary shaft 4214 drives the dustproof and soundproof protective cover 4223 of the grooving mechanism 422 to rotate. A spline drive shaft 4225 is rotatably installed inside the dustproof and soundproof protective cover 4223. The grooving pieces 4227 of the grooving piece group have spline grooves that can mesh with the spline drive shaft 4225. Each grooving piece 4227 is fixed to the spline drive shaft 4225 using a buckle 4226. Any grooving spacing can be obtained by adjusting the distance between the grooving pieces 4227 on the spline drive shaft 4225.

[0057] Specifically, the cooling recovery mechanism 3 includes a cooling filter water tank 32, a water outlet pipe 33, a recovery device 34, and a blower 35. The cooling filter water tank 32 is divided into two parts: a drawer-type filter box 321 and a drawer-type water storage tank 323. A filter screen 322 is provided between the two boxes. The water storage tank 323 is connected to the water outlet pipe 33 at the bottom. The filter box 321 is connected to the blower 35 on one side through a duct 351, so that a negative pressure is generated inside the filter box 321 during operation. The recovery device 34 recovers the floating dust and stone chips generated during the grooving process, as well as the cooling water used to cool the grooving plate assembly 4221.

[0058] Based on the construction method of the aforementioned mobile heating cable road surface de-icing bridge-type grooving machine, a corresponding construction plan was completed. The specific construction objective was to use the aforementioned grooving machine to groove a 3m wide and 5m long area of ​​road surface heating cable, with a grooving spacing of 0.2m and a grooving depth of 0.1m. This construction case uses five grooving blades 4227 to form a grooving blade group 4221, designated as blade 1, blade 2, blade 3, blade 4, and blade 5. The spacing between the grooving blades is twice the spacing between the heating cables. A schematic diagram of the grooving route of the five grooving blades 4227 within one standard cycle is shown below. Figure 9 As shown in Table 1, the specific construction parameters are as follows:

[0059] Table 1 Heating Cable Grooving Parameters

[0060] Groove area length Groove area width Cable spacing Cable burial depth Groove spacing 5 / m 3 / m 0.2 / m 0.1 / m 0.4 / m

[0061] Based on the above groove parameters for the heating cable, the specific implementation steps are as follows:

[0062] S1: The walking mechanism 1 initially maintains the same straight line with the preset groove direction by using the guide wheel 12 and the walking wheel 13 under the drive of the drive motor 14. The walking mechanism 1 is pushed upward by the telescopic top support rod 11 on the frame 15 until the walking wheel 13 and the guide wheel 12 are suspended in the air. The side beam sliders 27 of the bridge sliding mechanism 2 are driven to correct the central axis of the crossbeam frame 22 and maintain the same straight line with the preset groove direction.

[0063] S2: Install the grooving mechanism 422 via the coaxial flange 4224. Install five grooving plates 4227 sequentially, forming a grooving plate group 4221, with a grooving plate spacing of 0.4 / m. Assuming the initial distance between the grooving plates of the grooving mechanism 422 and the road surface is 0.5 / m, the fully folded height displayed on the corresponding lifting height control ruler 411 is 0.5 / m. Based on the cable burial depth of 0.1 / m, calculate the descent height of the grooving mechanism 422 as 0.6 / m.

[0064] S3: Activate the hydraulic control system of the lifting mechanism 41 to control the lifting height of the scissor lift mechanism 413, so that the grooved plate group 4221 on the grooved mechanism 422 is grounded. At this time, the unfolded height of the scissor lift mechanism displayed on the lifting height control ruler is 1 / m. And check again whether the grooved plate group 4221 is coaxial with the preset grooved direction.

[0065] S4: Start the drive motor 4222 and the cooling recovery mechanism 3, and continue to use the hydraulic control system to lower the scissor lift mechanism 413 to the height displayed on the lifting height control ruler as 1.1 m. At this time, turn off the control system of the lifting mechanism 41.

[0066] S5: Input the G-codes for linear interpolation and circular interpolation in the CNC program onto the control touchscreen 24 to control the linear grooving and rotary grooving of the grooving mechanism 422. For example... Figure 9 As shown, path AB is the grooving path of blade 1 within one standard grooving cycle, path BC is the grooving path of blade 2 within one standard grooving cycle, path CD is the grooving path of blade 3 within one standard grooving cycle, path DE is the grooving path of blade 4 within one standard grooving cycle, and path EF is the grooving path of blade 5 within one standard grooving cycle. After completing one standard grooving cycle, the grooving width can reach 1m. Therefore, to complete a 3m wide grooving area, 3 standard grooving cycles are required. Assuming the minimum bending radius of the heating cable is 0.15m, the radius of the rotary grooving arc can be taken as 0.2m. Therefore, the linear and rotary grooving parameters of a single grooving blade 4227 within one standard grooving cycle are shown in Table 2:

[0067] Table 2. Linear and rotary grooving parameters for a single grooving plate within one standard cycle.

[0068] Straight groove length radius of arc Linear grooving speed feed Rotary grooving speed feed 9.2m 0.2m 300mm / min 100mm / min

[0069] The following example demonstrates the linear and circular interpolation G-codes used in one standard grooving cycle of tool #1. Figure 9 As shown, the path of a standard grooving cycle is as follows: (1) The grooving machine starts from the origin and executes a linear interpolation command along the pre-grooving direction of the heating cable, from point A to point A1, with a running distance of 4600 mm; (2) From the end position of the linear interpolation command, a counterclockwise circular interpolation command is executed to groove an arc with a radius of 200 mm, from point A1 to point A2; (3) From the end position of the counterclockwise circular interpolation command at point A2, a linear interpolation command is executed along the pre-grooving direction of the heating cable to point A3, with a running distance of 4600 mm; (4) From the end position of the linear interpolation command, a clockwise circular interpolation command is executed to groove an arc with a radius of 200 mm, from point A3 to point B. Figure 9Setting point A as the origin, the key point coordinates of tool 1 can be obtained sequentially as shown in Table 3. The G-code and corresponding process for the grooving mechanism 422's operating path in a standard grooving cycle are as follows:

[0070] Table 3: Coordinates of key points for linear and rotary grooving with tool #1 within one standard grooving cycle.

[0071] A A1 A2 A3 B (0,0) (4600,0) (4600,200) (0,200) (0,400)

[0072] The following is an example of the G-code for linear interpolation and circular interpolation within one grooving cycle of tool #1:

[0073] G90 G21 (The movement position is an absolute distance position, calculated in metric units)

[0074] G0 X0Y0 (The initial position of the groove piece is the origin, i.e., the initial coordinates are A(0,0))

[0075] G01 X4600Y0F300 linear interpolation, moving from the initial point coordinates A(0,0) along a straight line to the final point coordinates A1(4600,0), at a speed of 300mm / min.

[0076] G03 X4600Y200R200F100 Counterclockwise circular interpolation: Starting from coordinate A1 (4600,0), a counterclockwise arc is cut to the endpoint coordinate A2 (4600,200). The arc radius is 200 mm, and the moving speed is 100 mm / min.

[0077] G01 X0Y200F300 (Linear interpolation, moving from the starting coordinate A2 (4600, 200) along a straight line to the ending coordinate A3 (0, 200), with a moving speed of 300 mm / min)

[0078] G02 X0Y400R200F100 Clockwise circular interpolation: Starting from coordinates A3(0,200), a circular arc is cut clockwise to the endpoint coordinates B(0,400). The arc radius is 25 mm, and the moving speed is 100 mm / min.

[0079] S6: After completing the first standard grooving cycle, raise the rotating mechanism 42 using the lifting mechanism 41 to check the groove depth and spacing. At the same time, activate the side beam synchronous belt drive mechanism of the side beam slider 27, move the No. 1 blade of the grooving mechanism 422 to the starting point of the second standard grooving cycle, and perform the second standard grooving cycle according to the above steps.

[0080] S7: After completing the second standard grooving cycle, raise the rotating mechanism 42 using the lifting mechanism 41 to check the groove depth and spacing. At the same time, activate the side beam synchronous belt drive mechanism of the side beam slider 27, move the No. 1 blade of the grooving mechanism 422 to the starting point of the third standard grooving cycle, and perform the third standard grooving cycle according to the above steps.

[0081] S8: After completing three standard grooving cycles, use the lifting mechanism 41 to raise the rotating mechanism 42 and check the groove depth and spacing. Turn off all equipment of the grooving machine, retract the telescopic top support rod 11, drive the traveling wheels 13, and proceed with the grooving construction of the next area.

[0082] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0083] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. A bridge-type grooving machine for mobile heating cables to melt ice and snow on road surfaces, characterized in that: The bridge sliding mechanism (2) is provided with a walking mechanism (1) at the bottom end, and a lifting and rotating slotting mechanism (4) for slotting and lifting and rotating 360 degrees is arranged on the bridge sliding mechanism (2), and a cooling and recycling mechanism (3) for assisting in the slotting process is arranged on the bridge sliding mechanism (2); The lifting and rotating slotting mechanism (4) comprises a lifting mechanism (41) and a rotating mechanism (42) connected in transition, the lifting mechanism (41) comprises a scissor lifting mechanism (413), the rotating mechanism (42) is connected below the scissor lifting mechanism (413), and the rotating mechanism (42) comprises a rotating control box (421) and a slotting mechanism (422); The slotting mechanism (422) comprises a dustproof and soundproof protective cover (4223), a spline transmission shaft (4225) is rotatably installed at the bottom end of the dustproof and soundproof protective cover (4223), a plurality of slotting piece groups (4221) are installed on the spline transmission shaft (4225) at certain intervals, the slotting piece groups (4221) are arranged in the dustproof and soundproof protective cover (4223), and the slotting action of the slotting piece groups (4221) is driven by a slotting piece driving machine (4222) at the end of the spline transmission shaft (4225). The bridge sliding mechanism (2) comprises side beam racks (21) at two sides and a cross beam rack (22) connected in the middle, movable sliding blocks are guided and installed on the side beam racks (21) and the cross beam rack (22) respectively, the sliding blocks comprise cross beam sliding blocks (23) and side beam sliding blocks (27), the side beam racks (21) comprise side beam guide rails (25), side beam synchronous belt (29) transmission structures reciprocatingly installed on the side surfaces of the side beam guide rails (25), the side beam sliding blocks (27) on the side beam racks (21) slide on the side beam guide rails (25) through the side beam synchronous belt (29), the cross beam rack (22) is installed above the side beam sliding blocks (27) at two ends respectively, the cross beam rack (22) comprises cross beam guide rails (26), cross beam synchronous belt (31) transmission structures reciprocatingly installed on the side surfaces of the cross beam guide rails (26), and the cross beam sliding blocks (23) on the cross beam rack (22) slide on the cross beam guide rails (26) through the cross beam synchronous belt (31). The one side of the beam frame (21) is provided with a touch screen (24), and the touch screen (24) can be directly programmed according to the heating cable laying scheme, and the groove path and groove parameter command are sent to the rotating mechanism (42), so that the groove is formed according to the heating cable laying form, and the groove direction of the lifting and rotating groove mechanism (4) can be accurately controlled through the beam slider (27) on the sliding beam guide rail (25); The beam guide rail (25) and the beam synchronous belt (29) are provided with a beam protection cover (28) outside, which can prevent the beam synchronous belt (29) from being damaged and prevent dust during grooving; The cross beam guide rail (26) and the cross beam synchronous belt (31) are respectively provided with a cross beam protection cover (30) outside, which can prevent the cross beam synchronous belt (31) from being damaged and prevent dust during grooving.

2. The mobile heat cable ice-melting road surface special bridge type grooving machine according to claim 1, characterized in that: The walking mechanism (1) comprises a frame (15) matched with the bridge sliding mechanism (2), the frame (15) is fixedly connected with the bridge sliding mechanism (2) as the bearing structure of the walking mechanism (1), four corners of the frame are respectively provided with telescopic top support rods (11), the lower part of the frame is provided with walking wheels (13), the walking wheels (13) are walking structures of the walking mechanism (1), and the walking mechanism (1) can move quickly on the road surface under the drive of the driving machine (14), the middle axis of the lower part of the frame is provided with a guide wheel (12), the guide wheel (12) is a guide structure of the walking mechanism (1), and the walking mechanism (1) can move along the preset grooving direction.

3. The mobile heat cable ice-melting road surface special bridge type grooving machine according to claim 2, characterized in that: The lifting mechanism (41) comprises a scissor lifting mechanism (413), the top of the scissor lifting mechanism (413) is connected and fixed with the cross beam slider (23) of the bridge sliding mechanism (2) through a fixed seat, and the scissor lifting mechanism (413) is driven and controlled to fold and unfold through a lifting hydraulic cylinder (412); The lifting mechanism (41) further comprises a lifting height control ruler (411) arranged on one side of the scissor lifting mechanism (413), and the lifting height of the grooving mechanism (422) is accurately determined through the lifting height control ruler (411).

4. The mobile heat cable ice-melting road surface special bridge type grooving machine according to claim 3, characterized in that: The rotation control box (421) drives the slotting mechanism (422) to complete the rotation action, the rotation control box (421) is internally provided with a worm gear rotation assembly, a rotation shaft output end of the worm gear rotation assembly is connected with the slotting mechanism (422), the worm gear rotation assembly comprises a worm (4211), a worm gear (4212), a servo motor (4213) and a rotation shaft (4214), the servo motor (4213) drives the worm (4211) worm gear (4212) transmission structure, the rotation shaft (4214) is in transmission connection with the dustproof and soundproof protective cover (4223) through the coaxial flange (4224), the rotation shaft (4214) rotates to drive the dustproof and soundproof protective cover (4223) of the slotting mechanism (422) to rotate, the dustproof and soundproof protective cover (4223) is rotatably installed with a spline transmission shaft (4225), spline slots are formed in the slotting piece (4227) of the slotting piece group, the spline slots can be mutually engaged with the spline transmission shaft (4225), and each slotting piece (4227) is fixed on the spline transmission shaft (4225) by using a buckle (4226), and any slotting distance can be obtained by adjusting the distance between the slotting pieces (4227) on the spline transmission shaft (4225).

5. The mobile heat cable ice-melting road surface special bridge type grooving machine according to claim 4, characterized in that: The cooling recovery mechanism (3) comprises a cooling filter water tank (32), a water outlet pipe (33), a recovery device (34) and a blower (35), the cooling filter water tank (32) is divided into a drawer type filter tank (321) and a drawer type water storage tank (323), a filter screen (322) is arranged between the two tank bodies, and the water storage tank (323) is connected with the water outlet pipe (33); the filter tank (321) is connected with the blower (35) on one side through an air guide pipe (351), so that a negative pressure is generated in the cavity of the filter tank (321) during work, dust and stone chips generated during slotting are recovered through the recovery device (34), and cooling water used for cooling the slotting piece group (4221) is recovered.

6. A construction method of the mobile heat cable ice-melting snow pavement special bridge type grooving machine based on the above claim 5, characterized in that, The specific construction steps are as follows: S1: the walking mechanism (1) is preliminarily kept in line with the preset slotting direction by using the guide wheels (12) and the walking wheels (13) under the driving of the driving machine (14), the walking mechanism (1) is upwardly supported by the telescopic jacking support bars (11) on the frame (15), until the walking wheels (13) and the guide wheels (12) are suspended, the driving bridge sliding mechanism (2) is driven to slide the side beam sliders (27) on both sides, so that the central axis of the cross beam frame (22) is again corrected to keep in line with the preset slotting direction; S2: the slotting mechanism (422) is assembled through the coaxial flange (4224), appropriate slotting piece groups (4221) are installed according to the distance d of the heating cable, the initial distance L between the slotting piece groups (4221) of the slotting mechanism (422) and the road surface is recorded, the completely folded height S displayed on the lifting height control ruler (411) is recorded, and the lowering height L+H of the slotting mechanism (422) is calculated according to the depth H of the slot to be engraved. S3: Start the hydraulic control system of the lifting mechanism (41) to control the lifting height of the scissor lifting mechanism (413) so that the groove plate set (4221) on the groove mechanism (422) is in contact with the ground. At this time, the unfolded height of the scissor lifting mechanism (413) displayed on the lifting height control ruler (411) is S+L, and it is checked again whether the groove plate set (4221) is coaxial with the preset groove direction; S4: Turn on the groove plate driving mechanism (4222) and the cooling and recycling mechanism (3), and continue to use the hydraulic control system to lower the scissor lifting mechanism (413) to a height of S+L+H displayed on the lifting height control ruler (411). At this time, the control system of the lifting mechanism (41) is turned off; S5: Input the G code of linear interpolation and circular interpolation in the numerical control program on the control touch screen (24) to control the linear groove and rotary groove of the groove mechanism (422). The linear groove distance is k / mm, the rotary groove path is a circular arc, the radius of the circular groove is T / mm, the linear groove speed is P1 mm / min, and the rotary groove speed is P2 mm / min; The path of a standard groove cycle is (1) the groove machine starts from the origin, executes the linear interpolation command along the pre-groove direction of the heating cable, and runs a distance of k / 2 / mm; (2) from the end point position of the linear interpolation command, execute the counterclockwise circular interpolation command to groove a circular arc with a radius of T; (3) from the end point position of the counterclockwise circular interpolation command, execute the linear interpolation command along the pre-groove direction of the heating cable, and run a distance of k / 2 / mm; (4) from the end point position of the linear interpolation command, execute the clockwise circular interpolation command to groove a circular arc with a radius of T; The G code and corresponding process of the running path of the groove mechanism (422) of a specific standard groove cycle are as follows: First step, input G90 and G21 code to determine the moving position as absolute distance position and calculate in metric units; Second step, input GOO X0Y0 to execute the rapid positioning command to determine the initial position of the groove plate set (4221) as the origin, That is, the initial point coordinates are (0, 0) Third step, input G01 Xk / 2Y0FP1 to execute the linear interpolation command, and the groove plate set (4221) moves from the initial point coordinates (0, 0) to the end point coordinates (k / 2, 0) along a straight line at a speed of P1 mm / min; Fourth step, input G03 Xk / 2YdRTFP2 to execute the counterclockwise circular interpolation command, and the groove plate set (4221) cuts a circular arc counterclockwise from the start coordinates (k / 2, 0) to the end coordinates (k / 2, d) with a radius of T and a moving speed of P2 mm / min; Fifth step, input G01 X0YdFP1 to execute the linear interpolation command, and the groove plate set (4221) moves from the start coordinates (k / 2, d) to the end coordinates (0, d) along a straight line at a speed of P1 mm / min; The sixth step is to input G02 X0Y2d RTFP2 to execute the clockwise circular arc interpolation command, and the groove plate group (4221) cuts a circular arc clockwise from the starting coordinate (0, d) to the end coordinate (0, 2d) with a radius of T and a moving speed of P2 mm / min; The seventh step is to input M2 to execute the program end command; S6: After the grooving is completed, the lifting mechanism (41) is used to lift the rotating mechanism (42), the groove depth and the interval are checked, all the equipment of the grooving machine is turned off, the telescopic top support strut (11) is collected, the walking wheel (13) is driven, and the next area grooving construction is performed according to the above steps.

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