Highway pavement construction cutting device and method

Abstract

The present invention relates to the technical field of road construction equipment, and specifically to a highway road construction cutting equipment and method, including a mobile base, on which a double cutting assembly, a rotary drive assembly and a spacing adjustment assembly are provided, the double cutting assembly including two groups of cutting arms, each group of cutting arms including a lifting rod and a circular cutter, the rotary drive assembly including a spline shaft and two groups of transmission mechanisms, each group of transmission mechanisms including a No. 1 transmission member and a No. 2 transmission member, the No. 1 transmission member including a belt, the No. 2 transmission member including a roller shaft and a driving bevel gear, a mounting rod being fixedly provided on one of the slide seats, the driving bevel gear being rotatably provided on the upper end of the mounting rod, and the spline shaft passing through the driving bevel gear horizontally. When double-slit cutting is performed on the road surface, the spacing between the two groups of cutting arms is adjusted by the spacing adjustment assembly of the device, so that it can be applied to cutting double slits of different spacings, which not only reduces the corresponding cost, but also has a large spacing adjustment range.

Description

Technical Field

[0001] The present invention relates to the technical field of road construction equipment, and in particular to a highway road construction cutting device and method. Background Art

[0002] Pavement construction cutting equipment is widely used in the fields of road maintenance, bridge repair, cement concrete construction and building renovation. They can be used to cut damaged pavement for repair work, open expansion joints, crack control joints to reduce cracking and damage caused by temperature changes in concrete, and open pipes and install equipment in building renovation.

[0003] The existing Chinese patent with the publication number CN109837828B discloses a road surface cutting device and method for highway construction, but the patent also has the following defects:

[0004] First, before the cutting blade rotates, the cutting blade must be lifted above the road surface, and then the cutting blade is lowered to cut the road surface. The support arm for installing the cutting blade in the above patent is a fixed structure. During actual cutting, the cutting blade cannot be raised or lowered, so the cutting blade cannot be controlled to be raised or lowered. At the same time, since the cutting blade cannot be raised or lowered, the cutting depth cannot be controlled.

[0005] Secondly, in some specific construction plans, double-seam cutting of the road surface is required. If only one cutting blade is installed on a cutting device, then two cutting devices need to be activated in actual operation, which not only increases the cost, but also requires controlling the distance between the two cutting devices. If the cutting device is large, then during cutting, the two cutting devices cannot work synchronously, which will ultimately reduce construction efficiency.

[0006] Third, the cutting blade will generate a lot of debris when cutting the road surface, and the debris will fly everywhere and cause personal injury to the construction workers.

[0007] Therefore, it is necessary to provide a highway pavement construction cutting device and method to solve the above problems. Summary of the invention

[0008] Based on this, it is necessary to provide a highway pavement construction cutting device and method to address the existing technical problems.

[0009] In order to solve the problems of the prior art, the technical solution adopted by the present invention is: a highway pavement construction cutting equipment, including a mobile base, a double cutting assembly, a rotary drive assembly and a spacing adjustment assembly are arranged on the mobile base, the spacing adjustment assembly includes two slides that can translate toward and away from each other, the double cutting assembly includes two groups of cutting arms in a symmetrical state, the two groups of cutting arms are respectively arranged on two slides, each group of cutting arms includes a lifting and lowering rod and a circular cutter, one end of the lifting and lowering rod is hinged on the corresponding slide, the circular cutter is rotatably arranged on the other end of the lifting and lowering rod, the rotary drive assembly includes a spline shaft and two groups of transmission mechanisms in a symmetrical state, the spline The rotating shaft is arranged on the movable base in a horizontal state, and two sets of transmission mechanisms are arranged on the side of the spline rotating shaft. Each set of transmission mechanism includes a No. 1 transmission member and a No. 2 transmission member. The No. 1 transmission member is arranged on the corresponding lifting and lowering rod, and the No. 2 transmission member is arranged on the corresponding slide. The No. 1 transmission member includes a belt for driving the corresponding circular cutter to rotate, and the No. 2 transmission member includes a roller shaft and a driving bevel gear. The roller shaft is rotatably connected to the corresponding slide. A vertical mounting rod is fixed on one of the slides, and the driving bevel gear is rotatably arranged at the upper end of the mounting rod, and the spline rotating shaft passes through the driving bevel gear horizontally. The two ends of the roller shaft are respectively connected to the driving bevel gear and the belt drive.

[0010] The cam is secured to the base and has two members which are connected to the chassis and which are supported by the chassis.The cam is secured to the base and have two members which are connected to the chassis.

[0011] Furthermore, a vertical support arm is formed on the top of each slide, and a horizontally outwardly extending No. 1 rotating shaft is formed on the outer wall of one end of each lifting and lowering rod. The No. 1 rotating shaft is rotatably connected to the upper end of the support arm. A tilted hydraulic rod is provided on the top of each slide, and the tail end of the hydraulic rod is hinged to the top of the slide, and the output end of the hydraulic rod is hinged to the end of the lifting and lowering rod where the No. 1 rotating shaft is provided.

[0012] Furthermore, two columns are fixed on the rectangular bottom plate, the spline shaft is parallel to the support rod, and the two ends of the spline shaft are rotatably connected to the two columns respectively. A No. 2 motor is fixed on one of the columns, and the output end of the No. 2 motor is coaxially fixedly connected to the spline shaft. Two brackets are fixed on each slide seat, and the two brackets are respectively located above the two support rods. Each roller shaft is perpendicular to the spline shaft, and the two ends of each roller shaft are rotatably set on the two brackets respectively. One end of each roller shaft is coaxially fixedly connected to a No. 1 bevel tooth, and the No. 1 bevel tooth is meshed with the driving bevel tooth.

[0013] Furthermore, the No. 1 transmission member also includes a No. 1 rotating wheel and a No. 2 rotating wheel. The No. 1 rotating wheel is coaxially fixedly connected to the circular cutter. A No. 2 rotating shaft is rotatably provided on the outer wall of one end of each lifting and lowering rod. The No. 2 rotating shaft and the No. 1 rotating shaft are coaxial, and the No. 1 rotating shaft and the No. 2 rotating shaft are respectively located on both sides of the lifting and lowering rod. The No. 2 rotating wheel is coaxially fixedly connected to the No. 2 rotating shaft. The belt sleeve is arranged on the No. 1 rotating wheel and the No. 2 rotating wheel. The end of each roller shaft away from the No. 1 bevel tooth is coaxially fixedly connected with the No. 2 bevel tooth. Each No. 2 rotating wheel is coaxially fixedly connected with a No. 3 bevel tooth, and the No. 2 bevel tooth and the No. 3 bevel tooth are meshed with each other.

[0014] Furthermore, a semicircular shell is fixedly provided on each lifting and lowering rod, and each semicircular shell is sleeved on the upper half of the corresponding circular cutter. A dustproof shell sleeved on the outer periphery of the spacing adjustment component is fixedly provided on the movable base.

[0015] Furthermore, a connecting rod is hinged on the end of each lifting and lowering rod provided with a circular cutter, and a guide wheel is rotatably provided on the end of the connecting rod extending outward, and the guide wheel and the corresponding circular cutter are in the same plane, and a support plate is formed on the end of the connecting rod close to the lifting and lowering rod, and a limiting plate is formed on the end of each lifting and lowering rod close to the connecting rod, and one end of the support plate is upwardly in conflict with the limiting plate.

[0016] Furthermore, each lifting and lowering rod is provided with a pumping and pressure water spraying assembly, which includes a water spraying part, a swivel, a connecting rod, a piston and a water storage tank. The water spraying part includes an arc-shaped elbow and a plurality of nozzles. The arc-shaped elbow is fixed on the semicircular shell, one end of the arc-shaped elbow is a closed structure, and the other end is provided with a water outlet. The plurality of nozzles are formed on the swivel, and each nozzle passes downward through the semicircular shell. The swivel is coaxially fixedly connected to the No. 1 rotating wheel. The water storage tank is fixed on the lifting and lowering rod, and the piston is slidably connected to the lifting and lowering rod. The cap end of the piston is located in the water storage tank, and the rod of the piston is located outside the water storage tank. The two ends of the connecting rod are axially connected to the swivel and the rod of the piston respectively. The water storage tank is provided with a water inlet and a water outlet, and the water inlet and the water outlet are respectively provided with a No. 1 check valve and a No. 2 check valve. A water collecting box is fixedly arranged on the dustproof shell, a water filling port is arranged on the water collecting box, a No. 1 one-way valve is provided with a No. 1 hose connected with the water collecting box, and a No. 2 one-way valve is provided with a No. 2 hose connected with the water outlet.

[0017] A highway pavement construction cutting method comprises the following steps:

[0018] S1, moving the mobile base to the road surface that needs to be cut;

[0019] S2, adjusting the distance between the two groups of cutting arms through the distance adjustment component according to the current construction plan;

[0020] S3, starting the rotary drive assembly, and driving the two sets of circular cutters to rotate synchronously through the rotary drive assembly.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) The two groups of cutting arms of the device are arranged on the same machine body. When double-slit cutting is performed on the road surface, the spacing between the two groups of cutting arms is adjusted by the spacing adjustment component of the device, so that it can be suitable for cutting double-slits with different spacings, which not only reduces the corresponding cost, but also has a large spacing adjustment range and is not affected by the body volume.

[0023] (2) The two circular cutters are driven to rotate synchronously by the rotary drive assembly of the device, and after the spacing adjustment assembly adjusts the distance of the two sets of cutting arms, it does not affect the driving of the two circular cutters by the rotary drive assembly.

[0024] (3) The circular cutter of the device is installed on a lifting rod, and the lifting and lowering of the circular cutter is controlled by the lifting and lowering rod. During actual cutting, the cutting depth can be controlled in real time, and by raising one of the lifting and lowering rods, a single seam cutting of the road surface can be achieved, thereby ultimately increasing the scope of application of the device.

[0025] (4) The guide wheel of the device is installed on the connecting rod, and the connecting rod is hinged to the lifting and lowering rod. Therefore, when the circular cutter descends, the guide wheel can always be placed on the road surface through the hinged connecting rod, ultimately ensuring that the guide wheel can play a guiding role in the cutting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0027] Figure 2 yes Figure 1 A1 is a partial enlarged schematic diagram;

[0028] Figure 3 yes Figure 1 A2 is a partial enlarged schematic diagram;

[0029] Figure 4 It is a schematic diagram of the three-dimensional structure of the present invention after the dustproof shell and the pumping and pressure spraying assembly are removed;

[0030] Figure 5 yes Figure 4A3 is a partial enlarged schematic diagram;

[0031] Figure 6 yes Figure 4 A4 is a partial enlarged schematic diagram;

[0032] Figure 7 yes Figure 4 A partial enlarged schematic diagram indicated by A5;

[0033] Figure 8 It is a three-dimensional structural schematic diagram of the spacing adjustment component;

[0034] Fig. 9 It is a three-dimensional structural exploded view of the driving bevel gear and the spline shaft;

[0035] Fig.10 is a top view of the slide and cutting arm;

[0036] Fig.11 yes Fig.10 Section view along line AA;

[0037] Fig.12 It is a top view of the pumping and pressure spraying assembly;

[0038] Fig.13 yes Fig.12 Sectional view along line BB;

[0039] Fig.14 yes Fig.12 Cross-sectional view along line CC.

[0040] The numbers in the figure are: 1. Mobile base; 2. Sliding seat; 3. Lifting rod; 4. Circular cutter; 5. Spline shaft; 6. Belt; 7. Roller; 8. Driving bevel gear; 9. Mounting rod; 10. Rectangular bottom plate; 11. Travel wheel; 12. No. 1 motor; 13. Bidirectional threaded rod; 14. Support rod; 15. Sliding sleeve; 16. Threaded sleeve; 17. Support arm; 18. No. 1 shaft; 19. Hydraulic rod; 20. Column; 21. No. 2 motor; 22. Bracket; 23. No. 1 bevel gear; 24. No. 1 wheel; 25. No. 2 Rotor; 26. No. 2 rotating shaft; 27. No. 2 bevel gear; 28. No. 3 bevel gear; 29. ​​Semicircular shell; 30. Dustproof shell; 31. Connecting rod; 32. Guide wheel; 33. Support plate; 34. Limit plate; 35. Swivel; 36. Connecting rod; 37. Piston; 38. Water storage tank; 39. Arc elbow; 40. Nozzle; 41. Water inlet; 42. Water inlet; 43. Water outlet; 44. No. 1 one-way valve; 45. No. 2 one-way valve; 46. Water collecting box; 47. Water filling port; 48. No. 1 hose; 49. No. 2 hose. DETAILED DESCRIPTION

[0041] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0042] refer to Figures 1 to 14 A highway pavement construction cutting device shown in the figure comprises a mobile base 1, on which a double cutting assembly, a rotary drive assembly and a spacing adjustment assembly are arranged, and the spacing adjustment assembly comprises two slides 2 that can translate toward and away from each other. The double cutting assembly comprises two sets of symmetrical cutting arms, which are respectively arranged on two slides 2, and each set of cutting arms comprises a lifting rod 3 and a circular cutter 4, one end of the lifting rod 3 is hinged on the corresponding slide 2, and the circular cutter 4 is rotatably arranged on the other end of the lifting rod 3. The rotary drive assembly comprises a spline shaft 5 and two sets of symmetrical transmission mechanisms, and the spline shaft 5 is rotatably arranged on the mobile base 1 in a horizontal state. Both sets of transmission mechanisms are arranged beside the spline shaft 5. Each set of transmission mechanisms comprises a first transmission member and a second transmission member, the first transmission member is arranged on the corresponding lifting rod 3, and the second transmission member is arranged on the corresponding slide 2. The first transmission member includes a belt 6 for driving the corresponding circular cutter 4 to rotate, and the second transmission member includes a roller shaft 7 and a driving bevel gear 8. The roller shaft 7 is rotatably connected to the corresponding slide 2. A vertical mounting rod 9 is fixed on one of the slides 2, and the driving bevel gear 8 is rotatably arranged at the upper end of the mounting rod 9, and the spline shaft 5 passes through the driving bevel gear 8 horizontally, and the two ends of the roller shaft 7 are respectively connected to the driving bevel gear 8 and the belt 6.

[0043] The double cutting component of the present device can not only perform double-slit cutting on the road surface, but also perform single-slit cutting on the road surface. When performing double-slit cutting on the road surface, it is necessary to implement it according to the current construction plan. Different construction plans require different double-slit cutting spacings. Therefore, the cutting equipment is required to have the function of adjusting the spacing between the two sets of cutting arms, and after the spacing between the two sets of cutting arms is adjusted, the two circular cutters 4 need to be controlled to rotate synchronously, so as to adjust the spacing between the two sets of cutting arms through the spacing adjustment component of the present device.

[0044] The two circular cutters 4 are synchronously controlled to rotate by the rotary drive assembly of the device. The specific process is as follows: the spacing between the two slides 2 is adjusted according to the current construction plan, and each slide 2 drives the cutting arm thereon to translate. And when the cutting arm moves, the driving bevel gear 8 in the second transmission member slides on the spline shaft 5. When the spacing between the two cutting arms is adjusted, the spline shaft 5 starts to rotate. At this time, the spline shaft 5 drives the roller shaft 7 to rotate by driving the bevel gear 8. After the roller shaft 7 rotates, it drives the circular cutter 4 to rotate through the belt 6, and finally the road surface is cut by the rotating circular cutter 4. In the process of the circular cutter 4 cutting the road surface, the two sets of lifting and lowering rods 3 can be synchronously controlled to drive the two sets of cutting arms to rise and fall respectively, so that the depth of the two cutting seams can be synchronously controlled. When a single seam is cut on the road surface, one end of the corresponding cutting arm is driven to lift up by one of the lifting and lowering rods 3, and the circular cutter 4 arranged at one end of the cutting arm will rotate upward. When the circular cutter 4 rises to the top of the road surface, the other cutting arm is driven to descend by the other lifting and lowering rod 3. When the spline shaft 5 rotates, although the two circular cutters 4 rotate synchronously, one of the circular cutters 4 is lifted above the road surface and does not contact the road surface, and finally the road surface is cut by a single seam through the other circular cutter 4.

[0045] In order to show the specific structure of the spacing adjustment component, the following features are set:

[0046] The mobile base 1 includes a rectangular base plate 10 and four running wheels 11. The rectangular base plate 10 is horizontal. The four running wheels 11 are distributed in a matrix at the four end corners of the rectangular base plate 10. Each running wheel 11 is rotatably connected to the rectangular base plate 10. The spacing adjustment component also includes a No. 1 motor 12, a bidirectional threaded rod 13 and two support rods 14. The two support rods 14 are horizontal and parallel to each other. Each support rod 14 is fixed above the rectangular base plate 10. Each slide 2 is arranged above the support rod 14. Each slide 2 crosses the two support rods 14 horizontally. The bottom of each slide 2 is fixed with two sliding sleeves 15 respectively sleeved on the two support rods 14. The bidirectional threaded rod 13 is rotatably set on the top of the rectangular base plate 10. The bidirectional threaded rod 13 is set between two support rods 14, and the bidirectional threaded rod 13 is parallel to the support rod 14. The bottom of each slide seat 2 is fixedly provided with a threaded sleeve 16 screwed on the bidirectional threaded rod 13. The bidirectional threaded rod 13 has two threaded parts with opposite rotation directions. The two threaded sleeves 16 are respectively threadedly matched with the two threaded parts. Motor No. 12 is fixed on the top of the rectangular base plate 10, and the output end of motor No. 12 is coaxially fixedly connected to the bidirectional threaded rod 13.

[0047] When the No. 1 motor 12 is started, the No. 1 motor 12 drives the bidirectional threaded rod 13 to rotate, and the slide 2 is slidably arranged on the support rod 14 through the sliding sleeve 15. When the bidirectional threaded rod 13 rotates, the slide 2 will translate along the axial direction of the bidirectional threaded rod 13, and the bidirectional threaded rod 13 has two threaded parts with opposite rotation directions, and the two slides 2 will translate toward or away from each other through the two threaded sleeves 16.

[0048] In order to show how each lifting and lowering rod 3 is lifted and lowered, the following features are set:

[0049] A vertical support arm 17 is formed on the top of each slide 2, and a horizontally outwardly extending No. 1 rotating shaft 18 is formed on the outer wall of one end of each lifting and lowering rod 3. The No. 1 rotating shaft 18 is rotatably connected to the upper end of the support arm 17. A tilted hydraulic rod 19 is provided on the top of each slide 2, and the tail end of the hydraulic rod 19 is hinged to the top of the slide 2, and the output end of the hydraulic rod 19 is hinged to the end of the lifting and lowering rod 3 where the No. 1 rotating shaft 18 is provided.

[0050] When the output end of the hydraulic rod 19 extends, the output end of the hydraulic rod 19 will contact the end of the lifting and lowering rod 3 with the first rotating shaft 18, and the end of the lifting and lowering rod 3 with the circular cutter 4 will rotate downward. When the output end of the hydraulic rod 19 retracts, the output end of the hydraulic rod 19 will pull the end of the lifting and lowering rod 3 with the first rotating shaft 18, and the end of the lifting and lowering rod 3 with the circular cutter 4 will rotate upward.

[0051] In order to show how the spline shaft 5 rotates and how the roller shaft 7 is connected to the driving bevel gear 8, the following features are set:

[0052] Two columns 20 are fixedly arranged on the rectangular bottom plate 10, the spline shaft 5 is parallel to the support rod 14, and the two ends of the spline shaft 5 are rotatably connected to the two columns 20, and a No. 2 motor 21 is fixedly arranged on one of the columns 20, and the output end of the No. 2 motor 21 is coaxially fixedly connected to the spline shaft 5. Two brackets 22 are fixedly arranged on each slide 2, and the two brackets 22 are respectively located above the two support rods 14. Each roller shaft 7 is perpendicular to the spline shaft 5, and the two ends of each roller shaft 7 are rotatably arranged on the two brackets 22, and one end of each roller shaft 7 is coaxially fixedly connected to a No. 1 bevel gear 23, and the No. 1 bevel gear 23 is meshed with the driving bevel gear 8.

[0053] When the No. 2 motor 21 is started, the output end of the No. 2 motor 21 will drive the spline shaft 5 to rotate, because the spline shaft 5 passes through the driving bevel gear 8. When the spline shaft 5 rotates, the driving bevel gear 8 will be driven to rotate. When the driving bevel gear 8 rotates, the driving bevel gear 8 will drive the No. 1 bevel gear 23 to rotate, and finally drive the roller shaft 7 to rotate through the No. 1 bevel gear 23. Among them, since the roller shaft 7 and the driving bevel gear 8 are both connected to the same slide 2, and the No. 1 bevel gear 23 is connected to the roller shaft 7, when the slide 2 slides, the roller shaft 7 will drive the No. 1 bevel gear 23 to move together with the driving bevel gear 8. When the spacing between the two circular cutters 4 is adjusted, the cooperation of the spline shaft 5 and the driving bevel gear 8 can always drive the two circular cutters 4 to rotate.

[0054] In order to show the specific structure of the first transmission member and how the roller 7 is connected to the belt 6, the following features are set:

[0055] The No. 1 transmission member also includes a No. 1 rotating wheel 24 and a No. 2 rotating wheel 25. The No. 1 rotating wheel 24 is coaxially fixedly connected with the circular cutter 4. A No. 2 rotating shaft 26 is rotatably provided on the outer wall of one end of each lifting and lowering rod 3. The No. 2 rotating shaft 26 is coaxial with the No. 1 rotating shaft 18, and the No. 1 rotating shaft 18 and the No. 2 rotating shaft 26 are respectively located on both sides of the lifting and lowering rod 3. The No. 2 rotating wheel 25 is coaxially fixedly connected with the No. 2 rotating shaft 26, and the belt 6 is sleeved on the No. 1 rotating wheel 24 and the No. 2 rotating wheel 25. The end of each roller shaft 7 away from the No. 1 bevel gear 23 is coaxially fixedly connected with the No. 2 bevel gear 27, and each No. 2 rotating wheel 25 is coaxially fixedly connected with the No. 3 bevel gear 28, and the No. 2 bevel gear 27 and the No. 3 bevel gear 28 are meshed.

[0056] When the roller shaft 7 rotates, the roller shaft 7 drives the third bevel gear 28 to rotate through the second bevel gear 27, and the third bevel gear 28 drives the second rotating wheel 25 to rotate. When the second rotating wheel 25 rotates, the second rotating wheel 25 drives the first rotating wheel 24 to rotate through the belt 6, and finally the first rotating wheel 24 drives the corresponding circular cutter 4 to rotate. Since the second rotating wheel 25 is coaxially fixed with the second rotating shaft 26, the second rotating shaft 26 rotates independently, so when the lifting and lowering rod 3 is lifted and lowered, it will not affect the rotation of the second rotating shaft 26. When the lifting and lowering rod 3 is lifted and lowered, the circular cutter 4 will always rotate through the transmission of the belt 6.

[0057] In order to prevent the debris generated during cutting from flying around, the following features are set:

[0058] A semicircular shell 29 is fixedly provided on each lifting and lowering rod 3 , and each semicircular shell 29 is sleeved on the upper half of the corresponding circular cutter 4 . A dustproof shell 30 sleeved on the outer periphery of the spacing adjustment component is fixedly provided on the movable base 1 .

[0059] The semicircular shell 29 is used to prevent the debris generated by the circular cutter 4 from splashing around when cutting, and the dust cover 30 is used to prevent the dust on the road from falling onto the spacing adjustment component. A water tank with a water pipe (not shown in the figure) can be installed on the top of the dust cover 30. Since the circular cutter 4 will heat up when cutting, the circular cutter 4 can be cooled by water sprayed from the water pipe, thereby finally improving the service life of the circular cutter 4.

[0060] In order to achieve the initial calibration of the forward direction of the circular cutter 4 before cutting, the following features are set:

[0061] A connecting rod 31 is hingedly connected to the end of each lifting rod 3 provided with a circular cutter 4, and a guide wheel 32 is rotatably provided on the end of the connecting rod 31 extending outward, and the guide wheel 32 is in the same plane as the corresponding circular cutter 4. Two support plates 33 are formed at intervals on the end of the connecting rod 31 close to the lifting rod 3, and a limiting plate 34 is formed on the end of each lifting rod 3 close to the connecting rod 31, and one end of the two support plates 33 both contact the limiting plate 34 upward.

[0062] Before cutting, the construction workers will draw a cutting guide line on the road surface. Since a semicircular shell 29 is provided above the circular cutter 4, it is difficult to align the circular cutter 4 on the cutting guide line by observing it. At this time, calibration can be performed through the guide wheel 32. Before cutting, adjust the position of the mobile base 1 to ensure that the guide wheel 32 is on the cutting guide line. Then, when the mobile base 1 starts to move forward, the circular cutter 4 can cut along the cutting guide line. In this process, the circular cutter 4 will be lifted and lowered due to the need to control the depth of the cutting seam. Then, when the lifting and lowering rod 3 drives the circular cutter 4 to lift and lower, in order to ensure that the guide wheel 32 can always be set on the ground and not be affected by the lifting and lowering rod 3, the connecting rod 31 is hinged to the lifting and lowering rod 3. In this way, during the descent of the lifting and lowering rod 3, the guide wheel 32 can always be set on the ground, and when the lifting and lowering rod 3 is lifted, due to the gravity of the guide wheel 32, the end of the connecting rod 31 close to the lifting and lowering rod 3 will rise, and at this time, the two support plates 33 provided on the connecting rod 31 will upwardly conflict with the limit plate 34 provided on the lifting and lowering rod 3, and the rotation stroke of the connecting rod 31 is limited by the limit plate 34. After the lifting and lowering rod 3 rises, the end of the connecting rod 31 provided with the guide wheel 32 is prevented from drooping downward, causing the connecting rod 31 to be vertical, and finally ensure that when the lifting and lowering rod 3 is lowered, the connecting rod 31 can be in an outwardly extended state, and the guide wheel 32 can be set on the ground again. Among them, the gap between the two support plates 33 is used to avoid the hinge between the connecting rod 31 and the lifting and lowering rod 3.

[0063] In order to be able to cool the circular cutter 4, the following features are set:

[0064] Each lifting and lowering rod 3 is provided with a pumping and pressure water spraying assembly, which includes a water spraying part, a rotating ring 35, a connecting rod 36, a piston 37 and a water storage tank 38. The water spraying part includes an arc-shaped curved pipe 39 and a plurality of spray heads 40. The arc-shaped curved pipe 39 is fixed on the semicircular shell 29. One end of the arc-shaped curved pipe 39 is a closed structure, and the other end is provided with a water passage 41. The plurality of spray heads 40 are formed on the rotating ring 35, and each spray head 40 passes through the semicircular shell 29 downward. The rotating ring 35 is coaxially fixedly connected with the first rotating wheel 24, the water storage tank 38 is fixed on the lifting and lowering rod 3, the piston 37 is slidably connected with the lifting and lowering rod 3, the cap end of the piston 37 is located in the water storage tank 38, the rod of the piston 37 is located outside the water storage tank 38, and the two ends of the connecting rod 36 are axially connected with the rotating ring 35 and the rod of the piston 37 respectively. The water storage tank 38 is provided with a water inlet 42 and a water outlet 43, and the water inlet 42 and the water outlet 43 are respectively provided with a No. 1 one-way valve 44 and a No. 2 one-way valve 45. A water collecting box 46 is fixedly provided on the dustproof shell 30, and a water filling port 47 is provided on the water collecting box. The No. 1 one-way valve 44 is provided with a No. 1 hose 48 connected to the water collecting box 46, and the No. 2 one-way valve 45 is provided with a No. 2 hose 49 connected to the water outlet 41.

[0065] When the No. 1 wheel 24 rotates, the No. 1 wheel 24 will drive the rotating ring 35 to rotate. When the rotating ring 35 rotates, the piston 37 will be driven to slide back and forth through the action of the connecting rod 36. When the piston 37 slides toward the guide wheel 32, the piston 37 will draw the water in the water collection box 46 into the water storage tank 38. When the piston 37 slides away from the guide wheel 32, the piston 37 will press the water in the water storage tank 38 into the arc-shaped curved pipe 39. The water entering the arc-shaped curved pipe 39 will be sprayed toward the corresponding circular cutter 4 through a plurality of nozzles 40, and finally the circular cutter 4 will be cooled by spraying water. At the same time, dust is reduced by spraying water when the circular cutter 4 cuts. Among them, the No. 1 one-way valve 44 is used to supply the water in the water collection box 46 to enter the water storage tank 38, and prevent the water in the water storage tank 38 from flowing back into the water collection box 46. The second one-way valve 45 is used to allow water in the water storage tank 38 to enter the arc-shaped elbow 39 and prevent the water in the arc-shaped elbow 39 from flowing back into the water storage tank 38 .

[0066] A highway pavement construction cutting method, the method comprising the following steps:

[0067] S1, moving the mobile base 1 to the road surface that needs to be cut;

[0068] Before cutting, the construction workers will draw a cutting guide line on the road surface. Since a semicircular shell 29 is provided above the circular cutter 4, it is difficult to align the circular cutter 4 on the cutting guide line by observing it. At this time, calibration can be performed through the guide wheel 32. Before cutting, adjust the position of the mobile base 1 to ensure that the guide wheel 32 is on the cutting guide line, so that when the mobile base 1 starts to move forward, the circular cutter 4 can cut along the cutting guide line. In this process, since the depth of the cutting seam needs to be controlled, the circular cutter 4 will be lifted and lowered. When the lifting and lowering rod 3 drives the circular cutter 4 to lift and lower, in order to ensure that the guide wheel 32 can always be set on the ground and is not affected by the lifting and lowering rod 3. The connecting rod 31 is hinged to the lifting and lowering rod 3, so that during the descent of the lifting and lowering rod 3, the guide wheel 32 can always be set on the ground, and when the lifting and lowering rod 3 is lifted, due to the gravity of the guide wheel 32, the end of the connecting rod 31 close to the lifting and lowering rod 3 will be upturned. At this time, the two support plates 33 provided on the connecting rod 31 will upwardly conflict with the limit plate 34 provided on the lifting and lowering rod 3, and the rotation stroke of the connecting rod 31 is limited by the limit plate 34. After the lifting and lowering rod 3 rises, the end of the connecting rod 31 provided with the guide wheel 32 is prevented from drooping downward, causing the connecting rod 31 to be vertical, and finally ensure that when the lifting and lowering rod 3 is lowered, the connecting rod 31 can be in an outwardly extending state, and the guide wheel 32 is set on the ground again. Among them, the gap between the two support plates 33 is used to avoid the hinge between the connecting rod 31 and the lifting and lowering rod 3.

[0069] S2, adjusting the distance between the two groups of cutting arms through the distance adjustment component according to the current construction plan;

[0070] When the No. 1 motor 12 is started, the No. 1 motor 12 will drive the bidirectional threaded rod 13 to rotate, because the slide 2 is slidably arranged on the support rod 14 through the slide sleeve 15. After the bidirectional threaded rod 13 rotates, the slide 2 will translate along the axial direction of the bidirectional threaded rod 13, and the bidirectional threaded rod 13 has two threaded parts with opposite rotation directions. The two slides 2 will translate toward or away from each other through the two threaded sleeves 16, and finally adjust the spacing between the two sets of cutting arms.

[0071] S3, start the rotary drive assembly, and drive the two groups of circular cutters 4 to rotate synchronously through the rotary drive assembly.

[0072] When the No. 2 motor 21 is started, the output end of the No. 2 motor 21 will drive the spline shaft 5 to rotate. Since the spline shaft 5 passes through the driving bevel gear 8, when the spline shaft 5 rotates, the driving bevel gear 8 will be driven to rotate. When the driving bevel gear 8 rotates, the driving bevel gear 8 will drive the No. 1 bevel gear 23 to rotate, and finally drive the roller shaft 7 to rotate through the No. 1 bevel gear 23. When the roller shaft 7 rotates, the roller shaft 7 will drive the No. 3 bevel gear 28 to rotate through the No. 2 bevel gear 27, so that the No. 3 bevel gear 28 will drive the No. 2 rotating wheel 25 to rotate. When the No. 2 rotating wheel 25 rotates, the No. 2 rotating wheel 25 will drive the No. 1 rotating wheel 24 to rotate through the belt 6, and finally the No. 1 rotating wheel 24 will drive the corresponding circular cutter 4 to rotate. Since the No. 2 rotating wheel 25 is coaxially fixed with the No. 2 rotating shaft 26, the No. 2 rotating shaft 26 rotates independently, so when the lifting and lowering rod 3 is lifted and lowered, it will not affect the rotation of the No. 2 rotating shaft 26. Finally, when the lifting and lowering rod 3 is lifted and lowered, the circular cutter 4 will always rotate through the transmission of the belt 6.

[0073] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A highway pavement construction cutting device, It is characterized in that The invention comprises a movable base (1), on which a double cutting assembly, a rotary drive assembly and a spacing adjustment assembly are arranged, the spacing adjustment assembly comprises two slides (2) capable of translating toward and away from each other, the double cutting assembly comprises two groups of cutting arms in a symmetrical state, the two groups of cutting arms are respectively arranged on the two slides (2), each group of cutting arms comprises a lifting rod (3) and a circular cutter (4), one end of the lifting rod (3) is hinged on the corresponding slide (2), the circular cutter (4) is rotatably arranged on the other end of the lifting rod (3), the rotary drive assembly comprises a spline shaft (5) and two groups of transmission mechanisms in a symmetrical state, the spline shaft (5) is rotatably arranged on the movable base (1) in a horizontal state, and the two groups of transmission mechanisms are Located beside the spline shaft (5), each transmission mechanism includes a first transmission member and a second transmission member, the first transmission member is arranged on the corresponding lifting rod (3), the second transmission member is arranged on the corresponding slide (2), the first transmission member includes a belt (6) for driving the corresponding circular cutter (4) to rotate, the second transmission member includes a roller shaft (7) and a driving bevel gear (8), the roller shaft (7) is rotatably connected to the corresponding slide (2), a vertical mounting rod (9) is fixed on one of the slides (2), the driving bevel gear (8) is rotatably arranged on the upper end of the mounting rod (9), and the spline shaft (5) horizontally passes through the driving bevel gear (8), and the two ends of the roller shaft (7) are respectively connected to the driving bevel gear (8) and the belt (6) for transmission; The mobile base (1) comprises a rectangular base plate (10) and four running wheels (11), the rectangular base plate (10) is horizontal, the four running wheels (11) are distributed in a matrix at the four end corners of the rectangular base plate (10), each running wheel (11) is rotatably connected to the rectangular base plate (10), the spacing adjustment component also comprises a No. 1 motor (12), a bidirectional threaded rod (13) and two support rods (14), the two support rods (14) are horizontal and parallel to each other, each support rod (14) is fixed above the rectangular base plate (10), each slide seat (2) is arranged above the support rod (14), each slide seat (2) crosses the two support rods (14) horizontally, and the bottom of each slide seat (2) is Two sliding sleeves (15) are fixedly provided and respectively sleeved on two supporting rods (14); a bidirectional threaded rod (13) is rotatably provided on the top of the rectangular bottom plate (10); the bidirectional threaded rod (13) is provided between the two supporting rods (14), and the bidirectional threaded rod (13) is parallel to the supporting rod (14); a threaded sleeve (16) is fixedly provided on the bottom of each sliding seat (2) and is screwed on the bidirectional threaded rod (13); the bidirectional threaded rod (13) has two threaded parts with opposite rotation directions; the two threaded sleeves (16) are respectively threadedly matched with the two threaded parts; a No. 1 motor (12) is fixed on the top of the rectangular bottom plate (10); and the output end of the No. 1 motor (12) is coaxially fixedly connected to the bidirectional threaded rod (13).

2. A highway pavement construction cutting device according to claim 1, It is characterized in that A vertical support arm (17) is formed on the top of each slide (2), a horizontally extending first rotating shaft (18) is formed on the outer wall of one end of each lifting and lowering rod (3), and the first rotating shaft (18) is rotatably connected to the upper end of the support arm (17). A hydraulic rod (19) in an inclined state is provided on the top of each slide (2), the tail end of the hydraulic rod (19) is hinged to the top of the slide (2), and the output end of the hydraulic rod (19) is hinged to the end of the lifting and lowering rod (3) provided with the first rotating shaft (18).

3. A highway pavement construction cutting device according to claim 2, It is characterized in that Two columns (20) are fixedly provided on the rectangular bottom plate (10), the spline shaft (5) is parallel to the support rod (14), the two ends of the spline shaft (5) are respectively rotatably connected to the two columns (20), a No. 2 motor (21) is fixedly provided on one of the columns (20), the output end of the No. 2 motor (21) is coaxially fixedly connected to the spline shaft (5), two brackets (22) are fixedly provided on each slide seat (2), the two brackets (22) are respectively located above the two support rods (14), each roller shaft (7) is perpendicular to the spline shaft (5), the two ends of each roller shaft (7) are respectively rotatably arranged on the two brackets (22), one end of each roller shaft (7) is coaxially fixedly connected to a No. 1 bevel gear (23), and the No. 1 bevel gear (23) is meshed with the driving bevel gear (8).

4. A highway pavement construction cutting device according to claim 3, It is characterized in that The first transmission member also includes a first rotating wheel (24) and a second rotating wheel (25), the first rotating wheel (24) is coaxially fixedly connected to the circular cutter (4), a second rotating shaft (26) is rotatably provided on the outer wall of one end of each lifting and lowering rod (3), the second rotating shaft (26) and the first rotating shaft (18) are coaxial, and the first rotating shaft (18) and the second rotating shaft (26) are respectively located on both sides of the lifting and lowering rod (3), the second rotating wheel (25) is coaxially fixedly connected to the second rotating shaft (26), the belt (6) is sleeved on the first rotating wheel (24) and the second rotating wheel (25), the end of each roller shaft (7) away from the first bevel tooth (23) is coaxially fixedly connected to the second bevel tooth (27), each second rotating wheel (25) is coaxially fixedly connected to the third bevel tooth (28), and the second bevel tooth (27) and the third bevel tooth (28) are meshed.

5. A highway pavement construction cutting device according to claim 4, It is characterized in that A semicircular shell (29) is fixedly provided on each lifting and lowering rod (3), and each semicircular shell (29) is sleeved on the upper half of the corresponding circular cutter (4). A dustproof shell (30) sleeved on the outer periphery of the spacing adjustment component is fixedly provided on the movable base (1).

6. A highway pavement construction cutting device according to claim 1, It is characterized in that A connecting rod (31) is hingedly connected to the end of each lifting rod (3) provided with a circular cutter (4); a guide wheel (32) is rotatably provided on the end of the connecting rod (31) extending outward; the guide wheel (32) and the corresponding circular cutter (4) are located on the same plane; a support plate (33) is formed on the end of the connecting rod (31) close to the lifting rod (3); a limiting plate (34) is formed on the end of each lifting rod (3) close to the connecting rod (31); one end of the support plate (33) is upwardly abutted against the limiting plate (34).

7. A highway pavement construction cutting device according to claim 5, It is characterized in that Each lifting and lowering rod (3) is provided with a pumping and pressure spraying assembly, which includes a water spraying member, a rotating ring (35), a connecting rod (36), a piston (37) and a water storage tank (38). The water spraying member includes an arc-shaped curved pipe (39) and a plurality of spray heads (40). The arc-shaped curved pipe (39) is fixed on the semicircular shell (29). One end of the arc-shaped curved pipe (39) is a closed structure, and the other end is provided with a water outlet (41). The plurality of spray heads (40) are formed on the rotating ring (35), and each spray head (40) passes through the semicircular shell (29) downward. The rotating ring (35) is coaxially fixedly connected to the first rotating wheel (24). The water storage tank (38) is fixed on the lifting and lowering rod (3). The piston (37) is slidably connected to the lifting and lowering rod (3). The piston The cap end of the piston (37) is located in the water storage tank (38), the rod of the piston (37) is located outside the water storage tank (38), the two ends of the connecting rod (36) are axially connected to the swivel (35) and the rod of the piston (37), respectively, the water storage tank (38) is provided with a water inlet (42) and a water outlet (43), the water inlet (42) and the water outlet (43) are respectively provided with a first check valve (44) and a second check valve (45), a water collecting box (46) is fixedly provided on the dustproof shell (30), the water collecting box (46) has a water injection port (47), the first check valve (44) is provided with a first hose (48) connected to the water collecting box (46), and the second check valve (45) is provided with a second hose (49) connected to the water outlet (41).

8. A highway pavement construction cutting method, comprising the highway pavement construction cutting device as claimed in claim 1, It is characterized in that The method comprises the following steps: S1, moving the mobile base (1) to the road surface that needs to be cut; S2, adjusting the distance between the two groups of cutting arms through the distance adjustment component; S3, starting the rotary drive assembly, and driving the two sets of circular cutters (4) to rotate synchronously through the rotary drive assembly.

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