Multifunctional slope paver tractor

Abstract

The present invention is a multifunctional slope paver tractor, which solves the problems of existing devices with complex structures, limited functions, lack of dam top transition section operation capability, and low construction efficiency. The present invention is equipped with a rotating hopper and a slipform device. The tractor is fully electrically driven and primarily consists of a rotating hopper, a paver winch, a material transport vehicle winch, a chassis, a movable inclined platform, a frame, a curved slipform paving device, a hydraulic system, and electrical system equipment. The paver winch pulls the paver, and the material transport vehicle winch pulls the material transport vehicle. Each winch roller assembly consists of a motor-reducer-drum. The curved slipform paving device has the functions of paving, vibrating, and transition section slipform forming.

Description

Technical Field

[0001] The invention relates to a dam asphalt panel paving construction device. Background Art

[0002] Asphalt panels are widely used in pumped storage dams. Panel paving construction mainly uses winch-driven paver and vibratory roller to complete the construction. There are currently two types of winches.

[0003] One type is a tractor developed by the Institute of Electrical Engineering. It consists of a tractor frame, a roller mechanism, a transfer trolley, a transport trolley, two inclined slideways, and electrical control equipment. This tractor only functions as a feeder. A dump truck unloads asphalt concrete into the hopper of the tractor's transfer trolley. Its winch lifts the transfer trolley to a certain height on the inclined slideway and then unloads the asphalt into the transport trolley's hopper. The transport trolley, pulled by its winch, descends and delivers the asphalt into the paver hopper, completing the paving process. This winch has two inclined tracks: one for the hopper and one for the transport trolley. It also has two winches: one for pulling the hopper and the other for the transport trolley. It is fully electrically driven, compact, and lightweight. The shortcomings of this type of tractor are: (1) it can only carry a material transport cart to move the paving station, and cannot help the paver move the station; (2) it is light in weight and cannot tow a paver or a large paver to operate, and requires a separate winch to tow the paver on an inclined surface; (3) the paver must use its walking function to move the station by itself. In summary, it is light in weight and has relatively simple functions.

[0004] Another type of tractor, such as the one used at the Jurong Pumped Storage Power Station, consists of a hopper assembly, jib crane assembly, hopper hoist winch, paver winch, material transport vehicle winch, chassis assembly, movable inclined platform assembly, main diesel engine hydraulic pump station assembly, and electrical system equipment. The material transport vehicle is also equipped with a single-cylinder diesel engine to power the unloading mechanism. This fully functional winch not only transfers materials and tows the paver, but can also carry the paver (weighing approximately 24.3 tons) and relocate to another workstation, making it ideal for continuous panel operations on large dams.

[0005] However, this type of tractor also has its shortcomings, namely: (1) The main diesel engine hydraulic pump station power system of the tractor is too complicated. Its working principle is that the diesel engine drives the hydraulic pump station and generator. The hydraulic pump station pressurizes the hydraulic oil and transmits it to the paver winch hydraulic motor, the material transport trolley winch hydraulic motor and the walking mechanism hydraulic motor respectively, to pull the paver, the material transport trolley and the drive crawler. This power system is complex and expensive, and the diesel power does not meet the requirements of green construction. (2) The use of hydraulic drive has many components in the transmission chain, low efficiency, high energy consumption, and poor equipment reliability. (3) The components of the hydraulic system are highly specialized. Once damaged, they are more difficult to repair than mechanical transmission. (4) The control system is backward and there is room for improvement in multifunctionality.

[0006] After the asphalt paving is completed on the slope section of the asphalt concrete deck of a pumped storage power station dam, there will be a transition section between the slope and the dam top road surface. This transition section is generally composed of "slope - arc surface - horizontal surface" and its cross section is "slope segment - arc line - horizontal line". Traditional pavers cannot pave this section. Currently, manual paving and vibration rolling are used to form the surface. The shortcomings of manual paving are:

[0007] (1) The efficiency of manual paving and vibration forming is low, and the arc of the transition section is irregular and the appearance is poor; (2) The internal compaction degree of the paving layer is low and the density is uneven, so the paving quality cannot be guaranteed. Summary of the Invention

[0008] The purpose of the present invention is to provide a multifunctional slope paver tractor with a simple structure, multiple functions, the ability to pave the curved surface of the dam top transition section, high construction efficiency, high internal compaction of the paving layer, uniform density, and high paving quality.

[0009] The present invention is achieved in that:

[0010] The multifunctional slope paver tractor includes a tractor frame 1, a movable inclined platform 2, a driver's cab 3, a rotating hopper device 4, a curved slipform paving device 5, and a winch crawler chassis 6. The winch crawler chassis 6 is equipped with a frame lower platform 21. The 1st to 4th columns 19 are connected to the frame lower platform 21 and the frame upper frame 17 through the 1st and 2nd connecting flanges 20 and 18 respectively. The upper part of the 1st and 2nd inclined support rods 32 of the movable inclined platform 2 is hinged to one end of the 1st and 2nd pull rods 31, and the other end of the 1st and 2nd pull rods 31 is hinged to the upper part of the 1st and 2nd columns 19 of the frame. The lower part of the 1st and 2nd inclined support rods 32 is connected to the frame lower platform 2 through the limit lifting lug 33. 1 is hinged, the lower parts of the first and second oblique support rods 32 are sleeved with the first and second telescopic rods 35 and are connected through the cylinder 34. The driver's cab 3, the rotary hopper device 4, the curved surface slipform paving device 5, the material transport trolley winch roller device 8, and the paver winch roller device 9 are installed on the frame lower platform 21. The rope arranger 7 is installed on the upper part of the movable inclined platform 2. The length of the movable inclined platform can park and fix the material transport trolley and the asphalt paver. The rotary hopper platform 11 is installed on the side of a corner of the frame lower platform 21. The curved surface slipform paving device 5 is located below the frame lower platform 21, but its hopper extends out of the frame lower platform 21. The bottom edge of the curved surface slipform paving device 5 is flush with the ground.

[0011] The circular column 44 and the first motor 42 are fixedly connected to the lower platform 21 of the frame. The circular column 44 is connected to the inner ring of the first roller bearing, the slewing support 41 is connected to the outer ring of the first roller bearing, the outer gear ring of the slewing support 41 is engaged with the gear of the output shaft of the first motor 42, and the rotating support arm 43 is an L-shaped structure consisting of a vertical arm and a horizontal arm. The slewing support 41 is bolted to one end of the horizontal arm of the rotating support arm 43, and the vertical arm of the other end of the horizontal arm of the rotating support arm 43 is installed with a connecting tube. 38. The second motor 40 is located on the horizontal arm. The connecting tube 38 is movably matched with the vertical arm through the second roller bearing 37. The left and right ends of the connecting tube 38 are respectively connected to the hopper 36 and the large gear 39 by bolts. The gear of the second motor output shaft is engaged with the large gear 39 to drive the hopper to rotate at different angles to achieve the purpose of receiving and unloading materials. The rotation angle range of the W rotation mechanism of the second motor 40 is 0~210°, and the rotation angle range of the H rotation mechanism of the first motor 42 is 0~360°.

[0012] The curved surface slipform paving device 5 is an extrusion type curved surface slipform paving device, which consists of a rectangular hopper 45, a spiral feeder 50, a third motor 46, a pre-pressing section curved surface slipform 47, a vibrating rod 48, and a shaping section curved surface slipform 49. The pre-pressing section curved surface slipform 47 is composed of a first arc surface and a first plane, and the shaping section curved surface slipform 49 is composed of a second plane and a second arc surface. The right side of the first plane is welded to the lower side of the left vertical wall of the rectangular hopper 45, and the second plane of the shaping section curved surface slipform 49 is connected to the first arc surface. The upper side slipform baffle plate 54 and the lower side slipform baffle plate 55 are respectively connected to the rectangular hopper. The lower part of the short walls on both sides of 45 is welded to prevent asphalt concrete from overflowing. The upper sliding formwork baffle plate 54, the lower sliding formwork baffle plate 55 and the shaping section curved sliding formwork 49 and the pre-compression section curved sliding formwork 47 form a groove-shaped space as a sliding channel for asphalt concrete from the hopper to the sliding formwork. The movement direction of this device is vertical outward of the maximum long wall of the rectangular hopper 45. The third motor 46 is located on the maximum long wall of the rectangular hopper 45. The spiral feeder 50 is located at the lower part of the rectangular hopper 45 and is arranged along the long axis. Its exposed large pulley 51 is connected to the small pulley 53 on the output shaft of the third motor 46 through a belt 52.

[0013] The curved surface slipform paving device 5 is a shear-type curved surface slipform paving device, which consists of a second hopper 59, a tamping mechanism, and a slipform. The slipform 64 is composed of a tangent plane plate and an arc panel. The lower side of the arc panel is flush with the open bottom surface of the second hopper 59, and the right side of the plane plate is connected to the lower side of the vertical wall of the second hopper 59. The arc panel of the slipform 64 and the baffle 66 opposite to it form a groove-shaped space. The baffle 66 is connected to one side of the second hopper 59. The maximum width of the groove-shaped space is less than or equal to the length of the lower side of the vertical wall of the second hopper 59. There is a frame composed of columns 65 and beams 67 on the outside of the vertical wall of the second hopper 59, and a three-in-one motor 56 is arranged on the frame. The upper part of the second hopper 59 has a horizontal axis connected to the first pulley 57 on the outside of the second hopper 59. The first pulley 57 is connected to the second pulley on the output shaft of the three-in-one motor 56. The horizontal axis is fixedly connected to one end of the crank 58 in the second hopper 59. The other end of the crank 58 is hinged to the upper end of the connecting rod 61. The lower end of the connecting rod 61 is hinged to the loose-leaf tamping mechanism 62. The sliding mold 64 is welded or bolted to the frame and the second hopper 59. The material of the sliding mold 64 is low-alloy high-strength steel. One side of the flat plate of the sliding mold 64 has a blade 63 located in the second hopper 59. The blade 63 is triangular in shape and made of medium carbon steel. After the blade 63 is worn, the blade edge is welded. The height of the baffle 66 is 200 mm. An electric heating device or LPG heater is installed outside the hopper 59. When the temperature of each joint surface is detected to be lower than 90°, the heating temperature should be controlled between 100 and 130°C. When heating the construction joints, the heating depth must be ensured to be no less than 7cm. The asphalt concrete enters the hopper through the distributor, which can make the feeding uniform. The distributor is a grid structure. The size of its grid holes is opposite to the normal distribution. There are distributor grid leaves in the distributor frame. The grid leaves are dense in the middle and sparse on both sides. The closer to the side of the distributor frame, the larger the distance between the grid leaves. This can promote the uniform pouring of asphalt concrete into the hopper and facilitate the compaction of the tamping mechanism.

[0014] The present invention has the following advantages:

[0015] (1) The multifunctional tractor adopts all-electric drive, which is low-carbon and environmentally friendly; mechanical transmission, safe and reliable; remote control operation, intelligent upgrade, and good equipment plasticity.

[0016] (2) The multifunctional tractor can carry the paver to move to another workstation and can work with the paver for continuous operation with high efficiency.

[0017] (3) The multifunctional tractor has the ability to operate in areas where the paver cannot pave, such as the dam top transition section. This effectively compensates for the paver's shortcomings and strengthens the overall capabilities of the asphalt panel paving equipment. At this time, the W slewing mechanism of the rotating hopper rotates 90°, and the H slewing mechanism rotates 90-100°. The hopper feeding of the transition section slipform paving device can be completed independently without the need for other auxiliary equipment.

[0018] (4) It can reduce the number of operators. The driver can leave the driver's cab and remotely control the rotating hopper, paver winch, material transport winch and its trolley unloading mechanism while closely observing the execution of each mechanism. This reduces one command and safety management personnel, which is conducive to reducing costs and increasing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Front view of the tractor of the present invention.

[0020] Figure 2 A top view of the tractor of the present invention.

[0021] Figure 3 Side view of the tractor of the present invention.

[0022] Figure 4 Front view of the tractor frame.

[0023] Figure 5 Side view of the tractor frame.

[0024] Figure 6 Top view of the tractor frame.

[0025] Figure 7 Schematic diagram of the movable inclined platform.

[0026] Figure 8 Schematic diagram of the rotating hopper device.

[0027] Figure 9 Schematic diagram of the extruded curved slipform paving device.

[0028] Figure 10 Schematic diagram of the shear-type curved surface slipform paving device.

[0029] Figure 11 This is the construction layout drawing for multi-purpose tractors and other equipment. DETAILED DESCRIPTION Example 1

[0030] The multifunctional slope paver tractor includes a tractor frame 1, a movable inclined platform 2, a driver's cab 3, a rotating hopper device 4, a curved slipform paving device 5, and a winch crawler chassis 6. The winch crawler chassis 6 is equipped with a frame lower platform 21. The 1st to 4th columns 19 are connected to the frame lower platform 21 and the frame upper frame 17 through the 1st and 2nd connecting flanges 20 and 18 respectively. The upper part of the 1st and 2nd inclined support rods 32 of the movable inclined platform 2 is hinged to one end of the 1st and 2nd pull rods 31, and the other end of the 1st and 2nd pull rods 31 is hinged to the upper part of the 1st and 2nd columns 19 of the frame. The lower part of the 1st and 2nd inclined support rods 32 is connected to the frame lower platform 2 through the limit lifting lug 33. 1 is hinged, the lower parts of the first and second oblique support rods 32 are sleeved with the first and second telescopic rods 35 and are connected through the cylinder 34. The driver's cab 3, the rotary hopper device 4, the curved surface slipform paving device 5, the material transport trolley winch roller device 8, and the paver winch roller device 9 are installed on the frame lower platform 21. The rope arranger 7 is installed on the upper part of the movable inclined platform 2. The length of the movable inclined platform can park and fix the material transport trolley and the asphalt paver. The rotary hopper platform 11 is installed on the side of a corner of the frame lower platform 21. The curved surface slipform paving device 5 is located below the frame lower platform 21, but its hopper extends out of the frame lower platform 21. The bottom edge of the curved surface slipform paving device 5 is flush with the ground.

[0031] The circular column 44 and the first motor 42 are fixedly connected to the lower platform 21 of the frame. The circular column 44 is connected to the inner ring of the first roller bearing, the slewing support 41 is connected to the outer ring of the first roller bearing, the outer gear ring of the slewing support 41 is engaged with the gear of the output shaft of the first motor 42, and the rotating support arm 43 is an L-shaped structure consisting of a vertical arm and a horizontal arm. The slewing support 41 is bolted to one end of the horizontal arm of the rotating support arm 43, and the vertical arm of the other end of the horizontal arm of the rotating support arm 43 is installed with a connecting tube. 38. The second motor 40 is located on the horizontal arm. The connecting tube 38 is movably matched with the vertical arm through the second roller bearing 37. The left and right ends of the connecting tube 38 are respectively connected to the hopper 36 and the large gear 39 by bolts. The gear of the second motor output shaft is engaged with the large gear 39 to drive the hopper to rotate at different angles to achieve the purpose of receiving and unloading materials. The rotation angle range of the W rotation mechanism of the second motor 40 is 0~210°, and the rotation angle range of the H rotation mechanism of the first motor 42 is 0~360°.

[0032] The curved surface slipform paving device 5 is an extrusion type curved surface slipform paving device, which consists of a rectangular hopper 45, a spiral feeder 50, a third motor 46, a pre-pressing section curved surface slipform 47, a vibrating rod 48, and a shaping section curved surface slipform 49. The pre-pressing section curved surface slipform 47 is composed of a first arc surface and a first plane, and the shaping section curved surface slipform 49 is composed of a second plane and a second arc surface. The right side of the first plane is welded to the lower side of the left vertical wall of the rectangular hopper 45, and the second plane of the shaping section curved surface slipform 49 is connected to the first arc surface. The upper side slipform baffle plate 54 and the lower side slipform baffle plate 55 are respectively connected to the rectangular hopper. The lower part of the short walls on both sides of 45 is welded to prevent asphalt concrete from overflowing. The upper sliding formwork baffle plate 54, the lower sliding formwork baffle plate 55 and the shaping section curved sliding formwork 49 and the pre-compression section curved sliding formwork 47 form a groove-shaped space as a sliding channel for asphalt concrete from the hopper to the sliding formwork. The movement direction of this device is vertical outward of the maximum long wall of the rectangular hopper 45. The third motor 46 is located on the maximum long wall of the rectangular hopper 45. The spiral feeder 50 is located at the lower part of the rectangular hopper 45 and is arranged along the long axis. Its exposed large pulley 51 is connected to the small pulley 53 on the output shaft of the third motor 46 through a belt 52.

[0033] The fully electric driven multifunctional winch mainly consists of "rotating hopper assembly, paver winch, material transporter winch, curved slipform paving device, chassis assembly, movable inclined platform assembly, hydraulic system and electrical system equipment". Figure 1-3 As can be seen, the tractor frame is equipped with a movable inclined platform, a driver's cab and electrical equipment, a rotating hopper, a curved slipform paving device, and a chassis. The movable inclined platform is long enough to fully accommodate the material transport trolley and paver, allowing for easy transport to other workstations. The material transport trolley is an existing product, and the fully electric drive chassis is a mature product.

[0034] The tractor frame 1 is a welded steel structure. The four columns 19 are connected to the upper frame 17 and the lower platform 21 of the frame by high-strength bolts. The paver winch roller device, the material transport trolley winch roller device, electrical equipment, the driver's cab, etc. are arranged on the lower platform. The side of the lower platform of the frame is connected to the rotating hopper platform with high-strength bolts (or welding), the front of the lower platform of the frame is connected to the asphalt paving slipform device with high-strength bolts (or welding), and the lower part of the lower platform of the frame is connected to the tractor chassis with high-strength bolts. The upper frame of the frame is a welded structure, and the beam cross-section is box-shaped. The main longitudinal beam 24, the main cross beam 23 and the secondary beam 25 at the installation equipment of the frame are all box-shaped in cross-section. The other secondary beams and side beams 27 and 28 can be T-beams. The upper plane of the frame is paved with steel plates 26 (with holes opened as needed), which is the plane for equipment installation. Figure 4 、 Figure 5 、 Figure 6 The upper frame and the lower platform of the tractor frame are both quadrilateral welded structures with two longitudinal beams and two cross beams. The cross beam 22 in the frame is a box beam, and the diagonal bracing steel pipe is an ordinary welded round pipe.

[0035] The rotating hopper device is fixedly connected to the platform 21 under the frame with a circular column 44 and a first motor 42. The circular column is connected to the inner ring of the first roller bearing, the slewing support 41 is connected to the outer ring of the first roller bearing, the outer gear ring of the slewing support 41 is engaged with the gear of the output shaft of the first motor 42, and the rotating support arm 43 is an L-shaped structure consisting of a vertical arm and a horizontal arm. The slewing support 41 is bolted to one end of the horizontal arm of the rotating support arm 43, and the vertical arm of the other end of the horizontal arm of the rotating support arm 43 is connected to the vertical arm of the rotating support arm 43. Install the connecting tube 38, the second motor 40 is located on the horizontal arm, the connecting tube 38 is movably matched with the vertical arm through the second roller bearing, the left and right ends of the connecting tube 38 are respectively connected to the hopper 36 and the large gear 39 by bolts, and the gear of the second motor output shaft is engaged with the large gear 39 to drive the hopper to rotate at different angles to achieve the purpose of receiving and unloading materials. The rotation angle range of the W rotary mechanism of the first motor 42 is 0~210°, and the rotation angle range of the H rotary mechanism of the second motor 40 is 0~360°.

[0036] The tractor frame can open holes or cut the steel plate of the lower platform as needed. The lower part of the lower platform is connected to the chassis structure with high-strength bolts or welded. The position and number of the side beams and secondary beams of the lower platform of the tractor frame can be changed according to the equipment layout needs.

[0037] The movable inclined platform is a welded part, connected to the tractor frame with a pull rod at the top and placed on the platform below the frame. The platform is equipped with limit pins or limit plates, which allow it to move (slide and rotate) while also limiting its range of movement to ensure safety and reliability. The inclined platform structure is a plate-beam structure, and the beams are all H-shaped. A wire rope arrangement device is installed on the movable inclined platform. Slots and holes are opened on the inclined platform structure as needed. The rope arrangement device is a fixed product. Figure 7 shown.

[0038] When the tractor moves to another workstation, the paver and material transport trolley must be parked on the inclined platform. The cross-section of the bottom beam must be calculated and determined based on the weight of the specific model of the paver and material transport trolley. Steps for maintenance personnel to go up and down must be welded on the inclined platform, and must be an angle steel structure.

[0039] The main function of the multifunctional slope paver tractor is to take the asphalt concrete from the dump truck, transport the asphalt concrete to the paver for paving, and use the winch to pull the paver and the material transport trolley to run on the slope. After paving the asphalt concrete of the nth transfer panel, the multifunctional tractor will transfer the paver and the material transport trolley to the n+1th paving station to start the next paving cycle. The positions of other equipment of the multifunctional tractor when working are as follows Figure 11 As shown,

[0040] Figure 11The parts of the construction layout drawing of multi-purpose tractors and other equipment are as follows:

[0041] 7-Rope arranger; 8-Winch drum device for material transport trolley; 9-Winch drum device for paver; 12-Material transport trolley; 13-Paver; 68-Material transport dump truck; 69-Material receiving position of rotary hopper; 70-Feeding position of rotary hopper during paving in transition section; 71-Unloading position of rotary hopper when feeding material to material transport trolley.

[0042] Figure 11 Among them, 69, 70, and 71 are position indicators, which are the receiving and unloading positions of the rotating hopper respectively. 69 is the receiving position. At this time, the long side of the hopper is approximately perpendicular to the longitudinal center line of the road, and the long side of the hopper is greater than or equal to the width of the dump truck bucket to facilitate its unloading. 37 is the unloading position of the hopper into the hopper of the feeding trolley. After the material is received by the material transporting trolley 12, it runs toward the bottom corner of the slope and delivers the asphalt material to the hopper of the paver 13 for paving. After the asphalt material on the slope of the dam is paved, the slope will have a transition section with the dam top road surface. The transition section is generally composed of "inclined surface-arc surface-horizontal surface", and its cross section is "inclined line segment-arc line-horizontal line". The paver cannot pave this section. This section is completed by the curved surface slipform paving device 5-extrusion type curved surface slipform paving device installed on the tractor of the present invention, such as Figure 11 As shown in the figure, the rotating hopper is at the 70° position, feeding asphalt into the hopper of the extruded curved slipform paving unit. The multi-purpose tractor's travel mechanism is activated, and the tractor's deadweight is used to complete the paving, smoothing, and compaction of the asphalt in the transition section. The multi-purpose tractor's entire operating system is open-loop, with the tractor driver and the paver driver issuing run and stop commands. The multi-purpose tractor requires only one operator, and each mechanism can be operated from within the driver's cab or remotely. The workflow is as follows:

[0043] The tractor moves to the nth workstation → stops, remotely rotates the rotating hopper to position 69 to receive materials → remotely rotates the rotating hopper to position 71 and unloads the materials to the material transport trolley → remotely controls the traction mechanism of the material transport trolley to feed the materials downward → the tractor driver remotely rotates the rotating hopper to return to position 69 to receive materials → the paver driver remotely controls the material transport trolley to unload the materials → unloading is completed, the paver driver remotely closes the material transport trolley hopper and starts the winch, and pulls the material transport trolley upward → the material transport trolley is pulled to position 71 on the dam top → the tractor driver remotely controls the winch of the material transport trolley to stop → rotating Turn the hopper to position 69 to start a new round of material receiving → All mechanisms repeat the actions according to the above process → After the n-th block is paved, the paver winch pulls the paver to the movable inclined platform of the tractor and locks it → Rotate the hopper to receive the material and rotate it to the 70 feeding position → Rotate and unload the material into the hopper of the curved slipform paving device → Start the tractor travel mechanism, start the curved slipform paving device's material spreading and vibrating device, and carry out transition section paving → Walk to the n+1-th paving station and complete the n-th asphalt concrete paving → Start the next cycle of paving operations.

[0044] The various mechanisms of the multifunctional tractor have the following five working processes: (1) Feeding process. After the rotary hopper receives the material at the receiving position 69, the rotary hopper starts the rotary mechanism and rotates 180° to the unloading position 71. The material transport trolley is pulled by its winch to the bottom of the rotary hopper. The hopper rotates to unload the material and discharges the asphalt into the hopper of the material transport trolley. The material transport trolley is pulled down by its winch to the top of the paver hopper and unloads the asphalt into the paver hopper by opening the gate. The feeding is repeated in this way. The flow chart is as follows: dump truck unloads → rotary hopper receives the material → hopper rotates 180° → material transport trolley receives the material → winch pulls the material transport trolley downward → material transport trolley unloads the material into the paver hopper → paver paving.

[0045] (2) Transition section paving process. After the rotating hopper device receives the material, the W and H rotary mechanisms rotate 90° to feed the asphalt concrete into the hopper of the extrusion-type curved surface slipform paving device of the present invention. The spiral material distributing mechanism, the vibrating device and the tractor travel mechanism are moved to spread the asphalt material in the hopper on the transition section. The process is as follows:

[0046] The rotating hopper receives the material → the device rotates 90° → the hopper rotates 90° and discharges the material to the hopper of the curved surface slipform paving device → the slipform device spreads the material, vibrates, and paves the material into shape.

[0047] (3) Material transport trolley workflow. After the material transport trolley receives the material at the dam top, it needs to be pulled by its winch to operate on the slope with an angle of ≈75°. The material transport trolley delivers about 3.6m3 of material each time. Multiple deliveries are required for each block of the dam surface. The workflow is as follows: the material transport trolley receives the material → the material transport trolley winch is activated, the traction rope is released, and the material transport trolley descends → the material transport trolley unloads the material into the paver hopper → its traction winch is activated, the traction rope is reeled in, and the material transport trolley returns to the material receiving position.

[0048] (4) Working process of traction paver. After the paver receives the material, its winch pulls the paver upward and starts paving operation. The process is as follows: the paver hopper receives the material → the winch starts, reels in the traction rope, and pulls the paver upward → the paver spreads the material, irons it, and completes the asphalt concrete paving.

[0049] The present invention has the following advantages: (1) The multifunctional tractor adopts all-electric drive, which is low-carbon and environmentally friendly; mechanical transmission is safe and reliable; remote control operation is possible, intelligent upgrade is possible, and the equipment has good plasticity. (2) The multifunctional tractor can carry the paver as a whole to transfer the workstation, and can cooperate with the paver to operate continuously with high efficiency. (3) The multifunctional tractor has the ability to operate in areas where the paver cannot pave, such as the dam top transition section, which makes up for the shortcomings of the paver and strengthens the overall capacity of the asphalt panel paving equipment. At this time, the rotating hopper W rotating mechanism rotates 90°, and the H rotating mechanism rotates 90-100°. The hopper feeding of the curved slipform paving device can be completed independently without the need for other auxiliary equipment. (4) The number of operators can be reduced. The driver can leave the driver's cab and remotely control the rotating hopper, the paver winch, the material transport winch and its trolley unloading mechanism while closely observing the execution of each mechanism, reducing one command and safety management personnel, which is conducive to reducing costs and increasing efficiency. Example 2

[0050] The structures of the tractor frame 1, movable inclined platform 2, driver's cab 3, rotating hopper device 4, and tractor crawler chassis 6 of the multifunctional slope paver tractor are the same as those in Example 1.

[0051] The curved surface slipform paving device 5 is a shear-type curved surface slipform paving device, which consists of a second hopper 59, a tamping mechanism, and a slipform. The slipform 64 is composed of a tangent plane plate and an arc panel. The lower side of the arc panel is flush with the open bottom surface of the second hopper 59, and the right side of the plane plate is connected to the lower side of the vertical wall of the second hopper 59. The arc panel of the slipform 64 and the baffle 66 opposite to it form a groove-shaped space. The baffle 66 is connected to one side of the second hopper 59. The maximum width of the groove-shaped space is less than or equal to the length of the lower side of the vertical wall of the second hopper 59. There is a frame composed of columns 65 and beams 67 on the outside of the vertical wall of the second hopper 59, and a three-in-one motor 56 is arranged on the frame. The upper part of the second hopper 59 has a horizontal axis connected to the first pulley 57 on the outside of the second hopper 59. The first pulley 57 is connected to the second pulley on the output shaft of the three-in-one motor 56. The horizontal axis is fixedly connected to one end of the crank 58 in the second hopper 59. The other end of the crank 58 is hinged to the upper end of the connecting rod 61. The lower end of the connecting rod 61 is hinged to the loose-leaf tamping mechanism 62. The sliding mold 64 is welded or bolted to the frame and the second hopper 59. The material of the sliding mold 64 is low-alloy high-strength steel. One side of the flat plate of the sliding mold 64 has a blade 63 located in the second hopper 59. The blade 63 is triangular in shape and made of medium carbon steel. After the blade 63 is worn, the blade edge is welded. The height of the baffle 66 is 200 mm. An electric heating device or LPG heater is installed outside the hopper 59. When the temperature of each joint surface is detected to be lower than 90°, the heating temperature should be controlled between 100 and 130°C. When heating the construction joints, the heating depth must be ensured to be no less than 7cm. The asphalt concrete enters the hopper through the distributor, which can make the feeding uniform. The distributor is a grid structure. The size of its grid holes is opposite to the normal distribution. There are distributor grid leaves in the distributor frame. The grid leaves are dense in the middle and sparse on both sides. The closer to the side of the distributor frame, the larger the distance between the grid leaves. This can promote the uniform pouring of asphalt concrete into the hopper and facilitate the compaction of the tamping mechanism.

Claims

1. Multifunctional slope paver tractor, characterized by: The invention comprises a tractor frame (1), a movable inclined platform (2), a driver's cab (3), a rotating hopper device (4), a curved slipform paving device (5), and a winch crawler chassis (6). A frame lower platform (21) is installed on the winch crawler chassis. The first to fourth columns (19) are connected to the frame lower platform (21) and the upper frame (17) of the frame through the first and second connecting flanges (20) and (18), respectively. The upper parts of the first and second inclined support rods (32) of the movable inclined platform (2) are hinged to one end of the first and second pull rods (31), and the other ends of the first and second pull rods are hinged to the first and second columns (19) of the frame. The upper part is hinged, the lower parts of the first and second oblique support rods are hinged to the lower platform (21) of the frame through the limit lifting lugs (33), the lower parts of the first and second oblique support rods are sleeved with the first and second telescopic rods (35) and are connected through the oil cylinder (34), the driver's cab (3), the rotating hopper device (4), the curved surface slipform paving device (5), the material transport trolley winch roller device (8), and the paver winch roller device (9) are installed on the lower platform (21) of the frame, the rope arrangement device (7) is installed on the upper part of the movable inclined platform (2), the length of the movable inclined platform can park and fix the material transport trolley and the asphalt paver, the rotating hopper platform (11) is installed The curved surface slipform paving device (5) is installed on the side of a corner of the lower platform (21) of the frame. The curved surface slipform paving device (5) is located below the lower platform (21) of the frame, but its hopper extends out of the lower platform of the frame. The bottom edge of the curved surface slipform paving device is flush with the ground. The lower platform (21) of the frame is fixedly connected to the circular column (44) and the first motor (42). The circular column (44) is connected to the inner ring of the first roller bearing. The slewing support (41) is connected to the outer ring of the first roller bearing. The outer gear ring of the slewing support is engaged with the gear of the output shaft of the first motor. The rotating support arm (43) is an L-shaped structure consisting of a vertical arm and a horizontal arm. The slewing support and the rotating support are connected. One end of the horizontal arm of the arm is connected by bolts, and the vertical arm of the other end of the horizontal arm of the rotating support arm is installed with a connecting tube (38). The second motor (40) is located on the horizontal arm. The connecting tube is matched with the vertical arm through the second roller bearing (37). The left and right ends of the connecting tube are respectively connected to the hopper (36) and the first large gear (39) by bolts. The gear of the output shaft of the second motor is engaged with the first large gear to drive the hopper to rotate at different angles to achieve the purpose of receiving and unloading materials. The rotation angle range of the W rotary mechanism of the second motor (40) is 0 to 210 degrees, and the rotation angle range of the H rotary mechanism of the first motor is 0 to 360 degrees.The curved surface slipform paving device (5) is a shear-type curved surface slipform paving device, which is composed of a second hopper (59), a tamping mechanism, and a slipform. The slipform (64) is composed of a flat plate and an arc plate. The lower side of the arc plate is flush with the open bottom surface of the second hopper (59). The right side of the flat plate is connected to the lower side of the vertical wall of the second hopper. The arc plate of the slipform (64) and the baffle (66) opposite thereto form a groove-shaped space. The baffle is connected to one side of the second hopper. The maximum width of the groove-shaped space is less than or equal to The lower side of the vertical wall of the second hopper is longer than the lower side of the vertical wall of the second hopper. The outer side of the vertical wall of the second hopper has a frame consisting of a fifth column (65) and a crossbeam (67). The frame has a three-in-one motor (56). The upper part of the second hopper (59) has a horizontal shaft connected to the first pulley (57) outside the second hopper. The first pulley (57) is connected to the second pulley on the output shaft of the three-in-one motor (56). The horizontal shaft is fixedly connected to one end of the crank (58) in the second hopper. The other end of the crank is connected to the connecting rod (61). The upper end of the connecting rod is hinged, the lower end of the connecting rod is hinged with the loose-leaf tamping mechanism (62), the sliding mold (64) is welded or bolted to the frame and the second hopper, the sliding mold is made of low-alloy high-strength steel, one side of the sliding mold plate has a blade (63) located in the second hopper, the blade is triangular in shape, and the material is medium carbon steel. After the blade is worn, the blade is welded. The height of the baffle (66) is 200mm. An electric heating device or LPG heater is installed outside the second hopper. When the temperature of each joint surface is detected to be lower than 90°, the heating The temperature should be controlled between 100 and 130°C. When heating construction joints, the heating depth must be no less than 7cm. Asphalt concrete enters the second hopper through the distributor, ensuring uniform feeding. The distributor is a grid structure with holes arranged in the opposite direction of the normal distribution. The distributor frame contains distributor grille leaves, which are dense in the middle and sparse on the sides. The closer to the side of the distributor frame, the larger the distance between the grille leaves. This ensures uniform pouring of asphalt concrete into the hopper and facilitates compaction by the tamping mechanism.

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