WO2024041413A1

WO2024041413A1 - Environment-friendly road construction equipment for photovoltaic power station, and road structure

Info

Publication number: WO2024041413A1
Application number: PCT/CN2023/113034
Authority: WO
Inventors: 任金明; 马得莲; 陈义军; 王青峰; 周勇武; 沈阳; 黄豹; 范进添; 周琪
Original assignee: 浙江华东工程建设管理有限公司; 中国电建集团华东勘测设计研究院有限公司
Priority date: 2022-08-22
Filing date: 2023-08-15
Publication date: 2024-02-29
Also published as: CN115217009B; CN115217009A

Abstract

The present invention relates the field of permanent and temporary road construction, and particularly provides environment-friendly road construction equipment for a photovoltaic power station, and a road structure. The road structure comprises a roadbed, a base trough, graded crushed stones, medium-coarse sand, block stones and a mixture. A base course of a certain thickness is laid with the graded crushed stones at the bottom of the base trough which is excavated on the roadbed and has an inverted trapezoidal cross section. A bed course of a certain thickness is laid with the medium-course sand on the graded crush stone base course. A surface course is laid on the medium-coarse sand bed course with one layer of block stones with large sizes and regular shapes. In the road structure of the present invention, the surface course is manually paved with block stones with large relative sizes and relatively regular shapes. The block stones are caulked by using the mixture. The block stones at the surface of the surface course is slightly higher than the mixture, such that the surface of the surface course has a tiny roughness. A vehicle is mainly in contact with the block stones in a traveling process, and direct contact between the traveling vehicle and the mixture is avoided, such that dust generation on the road surface is effectively controlled.

Description

An environmentally friendly road construction equipment and road structure for a photovoltaic power station

Technical field

The invention belongs to the field of Yonglin road construction, and in particular relates to an environmentally friendly road construction equipment and road structure for a photovoltaic power station.

Background technique

As my country continues to promote the implementation of the strategic goals of carbon peaking and carbon neutrality, the development of green and clean energy brings opportunities, and the construction of photovoltaic power stations continues to increase. Photovoltaic power stations need to build roads during both the construction and operation periods. The roads in the factory area are generally permanently integrated. During the construction period of the power station, they are used as temporary construction roads and during the operation period, they are used as factory maintenance roads. The conventional structure of the roads in the factory area generally adopts the mud-crushed gravel type, including the base layer and the surface layer from bottom to top. The base layer is paved with lime-stabilized soil, and the surface layer is made of mud-crushed gravel mixture. The mud-stone mixture is mainly composed of gravel and fine-grained soil (or clay) in a certain proportion. The particle size of the gravel and the plasticity index of the fine-grained soil (or clay) are prepared according to the design requirements. After the conventional factory road of the photovoltaic power station is completed and put into operation, due to the mud in the gravel structure, a certain amount of dust will be generated during the driving of vehicles or construction equipment. The dust will be scattered on the photovoltaic panels, causing dust on the panels, and the adverse effects of dust on the panels. Including: first, it will reduce the amount of sunlight shining on the panel, weaken the intensity of solar radiation received by the panel, reduce power generation, and reduce output power; second, the dust covering the photovoltaic panel blocks the transfer of heat to the outside, causing the panel temperature to increase. High, which affects the heat transfer form of photovoltaic panels and reduces the efficiency of photovoltaic power generation; thirdly, the main components of crystalline silicon photovoltaic panels are silica and limestone. If the dust on the panel encounters water vapor in the air and becomes moist, it will interact with the The panel's constituent substances create acidic or alkaline reactions that increase maintenance costs. Therefore, the structural design of the roads in the photovoltaic power plant area and the dust generated from the road surface after the roads are put into operation will have a certain impact on the photovoltaic power station panels and power generation.

In addition, pavement is generally paved with multiple layers of stone. The process requires a variety of equipment and manual work. The process is cumbersome and low-efficiency. For small roads with small construction scale, the process is still complex, so for those who require rapid construction, It is necessary to design a set of paving equipment for Yonglin trails.

The present invention designs an environmentally friendly road construction equipment and road structure for a photovoltaic power station to solve the above problems.

Contents of the invention

In order to solve the above-mentioned defects in the prior art, the present invention discloses an environmentally friendly road construction equipment and road structure for photovoltaic power stations, which are implemented using the following technical solutions.

An environmentally friendly road construction equipment for a photovoltaic power station, which includes road construction vehicle A and road construction vehicle B. Road construction vehicle A independently lays the road base and road cushion in sequence, and road construction vehicle B lays the stones with small edges in the middle. A large distribution state is placed on the cushion in a single layer along the length of the road for manual paving of the road surface layer; after the road surface layer is laid, road repair vehicle A uses the mixture to squeeze the gaps in the surface layer.

The road construction vehicle A includes a vehicle body A, a rear wheel, a hydraulic cylinder A, a front wheel, a road rolling mechanism, a hydraulic cylinder B, a paving mechanism, and a squeezing mechanism. The vehicle body A has two front wheels and two rear wheels. The wheels are driven by the corresponding hydraulic cylinder A and can move axially according to the road conditions on both sides of the road so that the vehicle body A can travel smoothly on a flat road; the front end of the vehicle body A slides vertically and is driven by the hydraulic cylinder B to lay the road base in sequence. and a paving mechanism for the road cushion; the paving mechanism is equipped with a squeezing mechanism that automatically fills the joints of the artificially laid road surface; the installation slot A at the rear end of the vehicle body A is installed with a paving mechanism for the front to lay the pavement on the road surface A detachable road compacting mechanism for compacting materials.

The road construction vehicle B includes a vehicle body B, a material trough B, a material trough C, a guide tube A, a guide tube B, a conveyor belt, and a motor B. The body of the vehicle body B is divided into a material trough B and a material trough B located in the middle. Two troughs C are distributed on both sides of the trough B; the size of the rocks accommodated in the trough B is smaller than the size of the rocks accommodated in the trough C on both sides; the bottoms of the trough B and the trough C are both equipped with A conveyor belt that is synchronously driven by motor B and delivers stones to the outlet at the end of trough B or trough C; a guide tube A is installed at the outlet at the end of trough B to guide the corresponding stones to the middle of the road. A guide tube B is installed at the outlet at the rear of the trough B to guide the corresponding stones to the edge of the road.

A road structure built using environmentally friendly road construction equipment for photovoltaic power stations. It includes a roadbed, a foundation trench, graded gravel, medium-coarse sand, rocks, and mixed materials. The cross-section excavated on the roadbed is an inverted trapezoidal base. At the bottom of the tank, graded gravel is used to lay a base layer of a certain thickness. Medium-coarse sand is used to lay a certain-thickness cushion layer on the graded gravel base layer. Large-sized and regular-shaped single-layer blocks are used on the medium-coarse sand cushion layer. Stones are used to lay the surface layer; mixed materials are used to squeeze joints between the stones. The upper surface of the blocks is higher than the jointed mixture, which makes the surface of the blocks have a certain degree of concavity and convexity, ensuring that vehicles mainly come into contact with the blocks during driving, avoiding direct contact between driving vehicles and the jointed mixture, and effectively controlling road dust. of production. At the same time, it is beneficial to the drainage of the road structure, and the road structure fully embodies the concept of environmental protection and green construction.

As a further improvement of this technology, the road roller mechanism includes a road roller, a fixed seat, a buffer block, a spring A, a baffle, a pin, a slider A, a mounting block, a plug, and a bolt. The column of the road roller is There is a charging port on the surface for filling stones inward. The charging port is equipped with an arc-shaped baffle for opening and closing through countersunk bolts; three fixed seats evenly distributed around the inner wall of the roller are A buffer block slides along the central axis of the cylinder and is installed with a number of springs A for resetting the buffer blocks; both ends of the cylinder are equipped with pins that are concentric with the central axis of the cylinder, and sliders A are rotated on the pins, and sliders A are installed along the pins. The shaft slides radially in the chute D of the mounting block; the two mounting blocks are inserted into the mounting slots B on both sides of the mounting slot A in the direction perpendicular to the wheel axis A. Each mounting slot B is matched with a mounting block. The blocking block is sealed inside, and the blocking block is fixed by the bolts on the side wall of the car body A.

As a further improvement of this technology, the paving mechanism includes a paving cylinder, a hydraulic cylinder B, a hopper, a rotating shaft A, a pulley B, a synchronous belt, a pulley A, a gear C, a gear B, a gear A, a motor A, and a gear. D. Gear E, sliding sleeve, spring B, worm, fixed shaft, turbine, rotating seat A, rotating shaft B, belt roller, slider C, trapezoidal guide block B, guide rail, trapezoidal guide groove B, which is as wide as the road and The upper end side of the paving tube that moves vertically at the front end of the car body A under the drive of hydraulic cylinder B has a loading port, and a funnel is provided at the loading port; there are a number of edges in the paving tube that rotate on a fixed axis parallel to its width direction. There are swivel seats A evenly spaced in the axial direction. Each swivel seat is equipped with a turbine on the same central axis as the fixed shaft. The turbine meshes with the rotating worm on the front side wall of the paving barrel. The exposed part of each worm is There are sliding sleeves that slide axially, and each sliding sleeve is threaded with bolts to lock it to the corresponding worm; each sliding sleeve has a spring B that resets it axially, and the gear E installed on the sliding sleeve is The gear D on the rotating shaft A parallel to the fixed axis outside the paving tube is driven and matched; the pulley B installed on the rotating shaft A is connected to the pulley A on the outer wall of the paving tube through a synchronous belt; the pulley A on the shaft where the pulley A is located Gear C meshes with gear B on the outer wall of the paving barrel, and gear B meshes with gear A on the output shaft of motor A on the outer wall of the paving barrel; each swivel base A is rotated with a rotating shaft B perpendicular to the fixed axis. A belt roller is installed on the rotating shaft B; starting from one side of the hopper, the transmission belt installed on the belt roller spirally twists downward around the fixed axis; the other end of the rotating shaft B installed with the belt roller is rotated with a slider C, which slides Block C slides around the fixed axis on the corresponding guide rail in the paving tube.

As a further improvement of this technology, the squeezing mechanism includes a trough A, a discharge pipe, a switch valve, a gear F, a gear G, a gear H, a gear I, a rotating shaft C, a gear J, a gear K, a rotating shaft D, and a rotating seat. B. Vortex spring, lever, and limit swing block. The lower end of the trough A installed on the side wall of the paving tube has a number of discharge pipes connected to it evenly distributed along the width direction of the road surface. Each discharge pipe is equipped with The switch valve that switches it on and off; the gear F installed on the input shaft of the switch valve meshes with the gear G installed on the side wall of the discharge pipe, and the rotating shaft C installed on the outside of the discharge pipe is equipped with a gear H on the axis where the gear G is located. The meshing gear I and the two rotating seats B outside the discharge pipe are rotated with a rotating shaft D parallel to the fixed axis and installed with a vortex spring for rotating and resetting the rotating shaft D; the rotating shaft is installed on the gear K of the rotating shaft D and the gear on the rotating shaft C. J meshing; the lever installed on the rotating shaft D cooperates with the limit pendulum block on the rotating base B.

As a further improvement of this technology, the main mineral components of the extrusion mixture are tobermulite, wollastonite, zeolite and calcite minerals. After a certain period of chemical reaction, silicate crystals can be formed to produce The cementing strength ensures that the surface layer does not produce loose dust, thus suppressing the generation of dust. The road construction materials are mainly made of local earth and stone materials to achieve an environmentally friendly structure that controls dust.

As a further improvement of this technology, the thickness of the graded gravel base layer is 15cm to 20cm, and the gravel particle size should be continuous graded stone. There should be no impurities such as clay blocks and plants in the graded gravel, and the content of flat, slender or needle-shaped particles should not exceed 20%; the surface of the graded gravel should be rough, angular, and the particle shape should be close to the cubic grade. With gravel, the crushing value of graded gravel should meet the indicators determined by testing with the standard method in the "Highway Engineering Aggregate Test Regulations"; the thickness of the medium-coarse sand cushion should be 5cm, and the thickness should not be too thin to avoid lumps of stones. The surface stones fall directly onto the base layer. The particle size of medium-coarse sand is well-graded 0.15~5mm; the stone size is 15cm~20cm; stones with relatively small particle size are used in the middle of the road, and stones with relatively large particle size are used at the edge of the road. The diameter of the stones varies by about 1cm to 2cm.

As a further improvement of this technology, the components of the squeezing mixture are fly ash, cement and sand, and the three are in a weight ratio of 1:3:18:2. The total content of Si02, A1203, and Fe203 in the selected fly ash in the mixture should be greater than 70%, the loss on ignition of the fly ash should not exceed 20%, and the specific surface area should be greater than 2500cm2/s; the cement should be ordinary grade 42.5 Portland cement. The sand must not contain harmful debris, and the mud content should not exceed 5%. Excessive mud content in medium-coarse sand will not only increase the amount of cement used in masonry mortar, but may also increase the shrinkage value of the mortar and reduce its durability. Affect the quality of road masonry.

Compared with the traditional Yonglin road structure, the surface layer in the road structure of the present invention is manually paved with relatively large-sized and relatively regular-shaped stones. Mixed materials are used to squeeze the joints between the stones. The stones on the surface of the surface layer are slightly It is higher than the mixture, so that there is a certain degree of slight unevenness on the surface of the surface layer. The vehicle mainly comes into contact with rocks during driving, avoiding direct contact between the driving vehicle and the mixture, and effectively controlling the generation of road dust.

The main mineral components of the surface layer mixture in the road structure of the present invention are tobermulite, wollastonite, zeolite and calcite minerals, etc. After a certain period of chemical reaction, silicate crystals can be formed to produce cementing strength. Ensure that the surface layer does not produce loose dust, thus suppressing the generation of dust.

The subgrade trench in the road structure of the present invention is paved with a graded gravel layer, which is in a state of two-way compression and does not transmit tensile stress or tensile strain. It can fully absorb the strain energy released by the cracks in the underlying layer, thereby achieving the effect of inhibiting cracks. ; The isolation effect of graded gravel can make the force of vehicles on the road surface more uniform, and the deformation of the road during operation is limited, which improves the durability of the road.

The road structure design of the present invention considers an environmentally friendly structure that controls dust. The road construction materials are mainly local earth and stone materials. The unevenness of the road surface is conducive to the drainage of the road structure. The road structure fully embodies the concepts of environmental protection and green construction.

The road structure of the present invention is strong and durable, clean and dust-free, has good skid resistance, is easy to construct and maintain, and can well solve the dust problem caused by driving in the photovoltaic power station, thereby reducing the impact of dust on power generation efficiency; the road The structure has strong adaptability, road construction materials are locally sourced, the cost is relatively low, it does not pollute the environment, and it conforms to the current environmental protection concept. It combines the concepts of "new energy" and "carbon neutrality" and has broad application prospects and is worthy of promotion.

Compared with the traditional road construction method, road construction vehicle A and road construction vehicle B in the present invention do not require the participation of multiple equipments. The construction process is simple and the efficiency is high. Especially for Yonglin small roads with small construction scale, the technological process Simple and easy to operate.

The invention has simple structure and good use effect.

Description of drawings

Figure 1 is a schematic cross-sectional view of the road structure.

Figure 2 is a schematic diagram of road construction vehicle A.

Figure 3 is a schematic cross-sectional view of road construction vehicle A.

Figure 4 is a three-section schematic diagram of the cooperation between the road pressure mechanism and the vehicle body of road construction vehicle A.

Figure 5 is a schematic cross-sectional view of the rear wheel axial drive and the front wheel axial drive of road construction vehicle A.

Figure 6 is a schematic cross-sectional view of the cooperation between the paving mechanism and the vehicle body.

Figure 7 is a schematic diagram of the vehicle body from two perspectives.

Figure 8 is a schematic diagram of the road pressing mechanism and its cross-section.

Figure 9 is a schematic cross-sectional view of the roller.

Figure 10 is a schematic diagram of the spreading mechanism and its cross-section.

Figure 11 is a schematic cross-sectional view of the drive of the rotating shaft A in the paving mechanism and the distribution of belt rollers in the paving tube.

Figure 12 is a schematic cross-sectional view of the cooperation between the rotating shaft A and the belt roller transmission from three views.

Figure 13 is a partial schematic diagram of the squeezing mechanism and its cross-section.

Figure 14 is a schematic diagram of road construction vehicle B.

Figure 15 is a schematic cross-sectional view of road construction vehicle B from two perspectives.

The names of the numbers in the picture: 1. Roadbed; 2. Foundation trench; 3. Graded gravel; 4. Medium coarse sand; 5. Rock; 6. Mixture; 7. Road construction vehicle A; 8. Vehicle body A; 9. Slide A; 11. Installation slot A; 12. Installation slot B; 14. Slide B; 15. Guide slot A; 16. Slide rod; 17. Axle A; 18. Rear wheel; 19. Hydraulic cylinder A ; 20. Axle B; 21. Front wheel; 22. Road roller mechanism; 23. Road roller; 24. Loading port; 25. Support rod; 26. Fixed seat; 27. Chute C; 28. Trapezoidal guide groove A; 29. Movable groove; 30. Buffer block; 31. Trapezoidal guide block A; 32. Fixed block; 33. Spring A; 34. Baffle; 35. Pin; 36. Slider A; 37. Installation block; 38. Chute D; 39. Block; 41. Bolt; 42. Spreading mechanism; 43. Spreading cylinder; 44. Slide seat; 45. Slider B; 46. Guide block A; 47. Hydraulic cylinder B; 48. Hopper; 49. Shaft A; 50. Pulley B; 51. Timing belt; 52. Pulley A; 53. Gear C; 54. Gear B; 55. Gear A; 56. Motor A; 57. Gear D ; 58. Gear E; 59. Sliding sleeve; 60. Guide groove B; 61. Spring B; 62. Worm; 63. Guide block B; 64. Fixed shaft; 65. Turbine; 66. Rotary seat A; 67. Rotating shaft B; 68. Belt roller; 69. Slider C; 70. Trapezoidal guide block B; 71. Guide rail; 72. Trapezoidal guide groove B; 74. Squeezing mechanism; 75. Feed trough A; 76. Discharge pipe; 77 , switch valve; 78, gear F; 79, gear G; 80, gear H; 81, gear I; 82, rotating shaft C; 83, gear J; 84, gear K; 85, rotating shaft D; 86, swivel seat B; 87. Vortex spring; 88. Lever; 89. Limiting swing block; 90. Road construction vehicle B; 91. Material trough B; 92. Material trough C; 93. Guide cylinder A; 94. Guide cylinder B; 95. Transmission Belt; 96. Gear L; 97. Gear M; 98. Motor B; 99. Car body B.

Detailed ways

The accompanying drawings are schematic diagrams of the implementation of the present invention to facilitate understanding of the operating principles of the structure. The specific product structure and proportional dimensions can be determined according to the use environment and conventional technology.

As shown in Figure 1, it includes road construction vehicle A7 and road construction vehicle B90. Road construction vehicle A7 alone sequentially lays the road graded gravel 3 base layer and the coarse sand 4 cushion layer in the road. Road construction vehicle B90 is on the road. After the medium-coarse sand 4 cushion is laid, place the stones 5 in a single layer along the length of the road in a distributed state with small middle and large edges on the medium-coarse sand 4 cushion for manual laying; the road construction truck A7 will lay the stones 5 on the surface of the road. After the layer is laid, the mixture 6 is used to squeeze the gaps between the stones 5.

As shown in Figures 2 and 3, the road construction vehicle A7 includes a vehicle body A8, rear wheels 18, hydraulic cylinder A19, front wheel 21, road roller mechanism 22, hydraulic cylinder B47, paving mechanism 42, and squeezing mechanism 74. As shown in Figure 5, the two front wheels 21 and the two rear wheels 18 of the vehicle body A8 are driven by corresponding hydraulic cylinders A19 and can move axially according to the road conditions on both sides of the road so that the vehicle body A8 can move on a flat road. Smoothly travels; as shown in Figures 2 and 3, the front end of the car body A8 slides vertically with a paving mechanism 42 driven by the hydraulic cylinder B47 to lay graded gravel 3 or medium-coarse sand 4 on the road surface; the paving mechanism 42 is installed There is a joint squeezing mechanism 74 that automatically fills the joints of the five layers of artificially laid stones; as shown in Figures 3 and 4, the installation groove A11 at the rear end of the vehicle body A8 is installed with the material laid by the front paving mechanism 42 on the road surface. Detachable compactor 22.

As shown in Figure 14, the road construction vehicle B90 includes a vehicle body B99, a material trough B91, a material trough C92, a guide tube A93, a guide tube B94, a transmission belt 95, and a motor B98. As shown in Figures 14 and 15, the vehicle The body B99 is divided into a trough B91 in the middle and two troughs C92 distributed on both sides of the trough B91; the size of the blocks 5 accommodated in the trough B91 is smaller than the blocks accommodated in the troughs C92 on both sides. The size of the stone 5; the bottoms of the trough B91 and the trough C92 are equipped with a conveyor belt 95 that is synchronously driven by the motor B98 and transports the stone 5 to the outlet of the trough B91 or the tail of the trough C92; the outlet of the tail of the trough B91 A guide tube A93 that guides the corresponding stones 5 to the middle position of the road is installed at the material opening, and a guide tube B94 that guides the corresponding stones 5 to the edge of the road is installed at the discharge port at the rear of the material chute B91.

As shown in Figures 2 and 14, the road structure is built using a photovoltaic power station environmentally friendly road construction equipment. It includes roadbed 1, foundation trench 2, graded gravel 3, medium coarse sand 4, block stones 5, and mixture 6 , as shown in Figure 1, the bottom of the foundation trench 2 with an inverted trapezoidal cross-section excavated on the roadbed 1 is laid with a certain thickness of base layer using graded gravel 3, and medium-coarse sand 4 is used on the base layer of graded gravel 3 A certain thickness of cushion is laid, and a single layer of large-sized and regular-shaped stones 5 is used as the surface layer on the medium-coarse sand 4 cushion; a mixture 6 is used between the stones 5 for squeezing. The upper surface of the block stones 5 is higher than the squeezing mixture 6, so that the surface of the block 5 has a certain degree of concavity and convexity, ensuring that the vehicle mainly contacts the blocks 5 during driving, and avoiding direct contact between the driving vehicle and the squeezing mixture 6. contact to effectively control the generation of dust on the road. At the same time, it is beneficial to the drainage of the road structure, and the road structure fully embodies the concepts of environmental protection and green construction.

As shown in Figures 4 and 8, the road pressure mechanism 22 includes a road pressure barrel 23, a fixed seat 26, a buffer block 30, a spring A33, a baffle 34, a pin 35, a slider A36, an installation block 37, and a blocking block 39. , Bolt 41, as shown in Figures 8 and 9, the cylinder surface of the road roller 23 has a charging port 24 for filling stones inward. The charging port 24 is equipped with a switch for opening and closing the stone through a countersunk bolt 41. The arc-shaped baffle 34 is evenly distributed in the circumferential direction on the three fixed seats 26 on the inner wall of the road roller 23. There are buffer blocks 30 sliding around the central axis of the cylinder and a number of springs A33 that reset the buffer blocks 30 are installed; as shown in Figure 4 , 7, both ends of the cylinder are equipped with pins 35 with concentric axes. The pins 35 are rotated with slide blocks A36, and the slide blocks A36 slide radially along the pins 35 in the chute D38 of the mounting block 37. inside; the two mounting blocks 37 are respectively inserted into the mounting slots B12 on both sides of the mounting slot A11 along the direction perpendicular to the wheel axis A17. Each mounting slot B12 is equipped with a blocking block 39 to block the mounting block 37 therein. , the blocking block 39 is fixed by the bolts 41 on the side wall of the car body A8.

As shown in Figures 3, 10, and 11, the spreading mechanism 42 includes a spreading cylinder 43, a hydraulic cylinder B47, a hopper 48, a rotating shaft A49, a pulley B50, a synchronous belt 51, a pulley A52, a gear C53, and a gear B54. Gear A55, motor A56, gear D57, gear E58, sliding sleeve 59, spring B61, worm 62, fixed shaft 64, turbine 65, rotating seat A66, rotating shaft B67, belt roller 68, slider C69, trapezoidal guide block B70, guide rail 71. Trapezoidal guide groove B72, as shown in Figures 3, 10, and 11, is as wide as the road and is driven vertically by the hydraulic cylinder B47 to move vertically at the front end of the car body A8. There is a loading port on the upper end side of the paving barrel 43 24. There is a funnel at the loading port 24; as shown in Figures 11 and 12, a number of swivel seats A66 evenly spaced along the axial direction are rotated on the fixed shaft 64 parallel to the width direction of the paving tube 43, and each swivel seat A turbine 65 coaxially aligned with the fixed shaft 64 is fixed on them. The turbine 65 meshes with a rotating worm 62 on the front side wall of the paving barrel 43. A sliding sleeve 59 slides axially on the exposed part of each worm 62. , each sliding sleeve 59 is threaded with a bolt 41 that locks it to the corresponding worm 62; each sliding sleeve 59 has a spring B61 for axial reset, and the gear E58 installed on the sliding sleeve 59 and the paving material The gear D57 on the rotating shaft A49 parallel to the fixed shaft 64 outside the drum 43 is driven and matched; the pulley B50 installed on the rotating shaft A49 is connected to the pulley A52 on the outer wall of the paving drum 43 through the synchronous belt 51; the shaft where the pulley A52 is located The gear C53 on the top meshes with the gear B54 on the outer wall of the paving barrel 43, and the gear B54 meshes with the gear A55 on the output shaft of the motor A56 on the outer wall of the paving barrel 43; each rotating base A66 is rotatably matched with a fixed shaft 64 Vertical rotating shaft B67, a belt roller 68 is installed on the rotating shaft B67; starting from the side of the hopper 48, the transmission belt 95 installed on the belt roller 68 is twisted spirally downward around the fixed shaft 64; the rotating shaft B67 is installed with the belt roller 68. The other end is rotatably fitted with a slide block C69, which slides around the fixed axis 64 on the corresponding guide rail 71 in the paving tube 43.

As shown in Figures 10 and 13, the squeezing mechanism 74 includes a trough A75, a discharge pipe 76, a switch valve 77, a gear F78, a gear G79, a gear H80, a gear I81, a rotating shaft C82, a gear J83, a gear K84, and a rotating shaft. D85, swivel seat B86, vortex spring 87, lever 88, limit swing block 89. As shown in Figures 2 and 13, the lower end of the material trough A75 installed on the side wall of the paving tube 43 is evenly distributed along the road width direction with a number of Each discharge pipe 76 is connected to the discharge pipe 76, and each discharge pipe 76 is equipped with a switch valve 77 for opening and closing the switch valve 77; the gear F78 installed on the input shaft of the switch valve 77 meshes with the gear G79 installed on the side wall of the discharge pipe 76, The rotating shaft C82 installed outside the discharge pipe 76 is equipped with a gear I81 that meshes with the gear H80 on the axis where the gear G79 is located. The two rotating seats B86 outside the discharge pipe 76 are rotated with a rotating shaft D85 parallel to the fixed shaft 64. A vortex spring 87 is installed for rotation and reset of the rotating shaft D85; the gear K84 installed on the rotating shaft D85 meshes with the gear J83 on the rotating shaft C82; the lever 88 installed on the rotating shaft D85 cooperates with the limit swing block 89 on the rotating base B86.

As shown in Figure 1, the main mineral components of the extrusion mixture 6 are tobermulite, wollastonite, zeolite and calcite minerals, etc. After a certain period of chemical reaction, silicate crystals can be formed to produce The cementing strength ensures that the surface layer does not produce loose dust, thus suppressing the generation of dust. The road construction materials are mainly made of local earth and stone materials to achieve an environmentally friendly structure that controls dust.

As shown in Figure 1, the thickness of the base layer of graded gravel 3 is 15cm to 20cm, and the particle size of the gravel should be continuous graded stone. There should be no impurities such as clay blocks and plants in graded gravel 3, and the content of flat, elongated particles or needle-shaped particles should not exceed 20%; the surface of graded gravel 3 should be rough, angular, and the particle shape is close to a cube. Graded gravel 3, the crushing value of graded gravel 3 should meet the indicators determined by testing with the standard method in the "Highway Engineering Aggregate Test Regulations"; the thickness of the medium-coarse sand 4 cushion is 5cm, and the thickness should not be too Thin to prevent the stone materials on the surface layer of the stone from falling directly on the base layer. The particle size of medium-coarse sand is 0.15~5mm with good gradation; the size of stones is 15cm~20cm; stones with relatively small particle size are used in the middle of the road, and stones with relatively large particle size are used at the edge of the road. The diameter difference between the middle and edge stones is about 1cm to 2cm.

As shown in Figure 1, the components of the extrusion mixture 6 are fly ash, cement and sand, and the three are in a weight ratio of 1:3:18:2. The total content of Si02, A1203, and Fe203 in the fly ash selected in Mix 6 should be greater than 70%, the loss on ignition of the fly ash should not exceed 20%, and the specific surface area should be greater than 2500cm2/s; the cement should be grade 42.5 Ordinary Portland Cement. The sand must not contain harmful debris, and the mud content should not exceed 5%. Excessive mud content in medium-coarse sand 4 will not only increase the amount of cement used in masonry mortar, but may also increase the shrinkage value of the mortar and reduce its durability. , affecting the quality of road masonry.

As shown in Figures 5 and 7, the side wall of the car body A8 has two transversely penetrating chute A9. Each chute A9 has two sliding rods 16 driven by corresponding hydraulic cylinders A19; The rods 16A are equipped with wheel axles A17, and each wheel axle A17 is equipped with a rear wheel 18; the two front sliding rods 16A are equipped with an axle B20, and each wheel axle B20 is equipped with a front wheel 21.

As shown in Figures 4, 8, and 9, the charging port 24 of the road roller 23 has a support rod 25 that cooperates with the baffle 34 to indirectly enhance the strength of the baffle 34 without causing the baffle 34 to be damaged during the road rolling process. Deformation occurs. The buffer block 30 slides in the chute C27 on the fixed seat 26; a trapezoidal guide block A31 is installed on the buffer block 30, and the trapezoidal guide block A31 slides in the trapezoidal guide groove A28 on the inner wall of the chute C27; the buffer block 30 is installed with a fixed Block 32, the fixed block 32 moves in the movable groove 29 on the inner wall of the chute C27; each movable groove 29 has two springs A33 that reset the corresponding fixed block 32.

As shown in Figures 6, 7, and 10, there is a sliding seat 44 on the side wall of the spreading tube 43. The sliding block B45 on the sliding seat 44 slides vertically in the chute B14 at the front end of the car body A8; the sliding block B45 has two There are two guide blocks A46, and the two guide blocks A46 slide in the two guide grooves A15 on the inner wall of the chute B14 respectively; as shown in Figure 12, there are two symmetrical guide blocks B63 on the worm 62, and the two guide blocks B63 slide respectively. In the two guide grooves B60 on the inner wall of the corresponding sliding sleeve 59; the slide block C69 has a trapezoidal guide block B70, and the trapezoidal guide block B70 slides in the trapezoidal guide groove B72 on the corresponding guide rail 71.

As shown in Figure 15, gear L96 is installed on the shaft where the bottom transmission belt 95 is located in the trough B91 or trough C92, and the gear L96 and the gear M97 installed on the output shaft of the motor B98.

The construction process of the road structure in the present invention includes: measuring and laying out → excavation of subgrade 1 and foundation trench 2 → rolling of subgrade 1 and foundation trench 2 → acceptance of subgrade 1 and foundation trench 2 → transportation of graded gravel 3 → graded gravel 3 Paving and rolling → Base layer acceptance → Medium coarse sand 4 transportation → Cushion laying → Cushion acceptance → Rump 5 processing → Rump 5 transportation and placing on the cushion in a single layer with a small size in the middle and large sizes on both sides → Manual Paving 5 blocks of stone → filling the extrusion joints between 5 blocks of stone with mixture 6 → forming the surface layer and sprinkling water for curing → acceptance of the surface layer.

As shown in Figure 1, the specific construction steps of the road structure are as follows:

(1) Stake out the road according to the design drawings. Subgrade 1 foundation trench 2 is excavated by an excavator. Try to excavate the trench at one time. Leave a 5cm protective layer at the bottom of the trench for manual excavation. Excavation of subgrade 1 foundation trench 2 is completed. Afterwards, the road bed can be rolled, using a road roller or the road construction truck A7 of the present invention to roll it to a compaction degree that meets the design requirements.

(2) After the subgrade 1 and foundation trench 2 are accepted, the graded gravel 3 base layer construction will be carried out. The graded gravel 3 material is transported, and the road construction truck A7 in the present invention is used for paving and rolling. The paving thickness is 1.2 to 1.3 times the design thickness. The graded gravel 3 material can also be paved and filled with an excavator. conduct.

(3) After the graded gravel 3 base layer is accepted, the medium-coarse sand 4 cushion layer will be constructed. First, use the road construction truck A7 in the present invention to lay a layer of medium-coarse sand 4 with a thickness of 5cm, and then check and accept it after smoothing.

(4) After the medium-coarse sand 4 cushion layer is accepted, the road construction vehicle B90 of the present invention is used to transport the rubble 5 and assist in the manual construction of the rubble 5 surface layer. The stones required for paving the road are processed in the stone yard. The stones are relatively large in size and relatively regular in shape. The size of the stones is generally 15cm to 20cm.

(5) The surface layer of stones is paved manually in sections. When paving each section, the construction is carried out in the order of edge first and then the middle. The height of the stones 5 on the edge of the road should exceed the height of the stones 5 in the middle of the road. The stones 5 on the edge of the road should be relatively smaller in particle size. For large stones, use stones with relatively smaller particle sizes in the middle. The material diameters of the stones in the middle and the edges differ by about 1cm to 2cm; the paving stones should be tightly fitted, not loose, and aligned horizontally. , arranged in longitudinal staggered joints; the top surface of a single stone block should be flat, and the top surfaces of adjacent stone blocks should be uniformly controlled at the design elevation of the road surface, and there should be no small sills.

(6) The extrusion joint mixture 6 such as fly ash, cement and sand is mixed on site by adding water according to the designed proportion. After mixing evenly, the gaps between the stones 5 are manually filled, and manually tamped with wooden sticks to make the gaps between the stones 5 The squeeze seam is full, and it is strictly forbidden to leave or not embed it.

(7) Sprinkle water on the 5th surface layer of the stone for curing, and the curing time shall be no less than 14 days. The number of times of watering every day depends on the weather and temperature of that day. The surface should be kept moist at all times, and no de-nutrition or leakage of nutrients should occur. After the 5th surface layer of the block stone meets the acceptance conditions, the 5th surface layer of the block stone will be accepted.

The usage process of road construction vehicle A7 in the present invention is as follows:

In the initial state, the road pressure mechanism 22 is installed in the installation groove A11 on the rear side of the vehicle body A8. The springs A33 in the road pressure mechanism 22 are in a compressed state. The buffer block 30 is in the center position of the fixed seat 26 where it is located. The charging port 24 of the road drum 23 is installed with a baffle 34 through bolts 41, and the road roller 23 is not filled with stones. Each switch valve 77 in the squeezing mechanism 74 is in an open state, and the vortex spring 87 in the squeezing mechanism 74 that resets the lever 88 is in a pre-compressed state.

First, according to the road conditions on both sides of the construction road, the hydraulic rod A of the front wheel 21 and the rear wheel 18 drives the front wheel 21 and the rear wheel 18 to move to a certain extent in the axial direction, so that the front wheel 21 and the rear wheel 18 move forward during use. Stable, ensuring the construction quality of the road rolling mechanism 22, paving mechanism 42 and squeezing mechanism 74 on the road construction truck A7.

Next, install the road roller mechanism 22 into the installation groove A11 on the rear side of the vehicle body A8, push the road roller into the installation groove, and simultaneously insert the two installation blocks 37 horizontally into the two installation grooves B12 on the inner wall of the installation groove A11. Within, when the two installation blocks 37 reach the extreme position in the installation slot B12, the road roller 23 is installed in place. At this time, insert the two blocking blocks 39 horizontally into the two installation slots B12 and tighten them with bolts 41. Thus, the installation of the road pressing mechanism 22 is completed.

Then, start the car body A8 to move slowly. Stop the car body A8 when the baffle 34 at the charging port 24 on the road roller 23 is completely exposed from the installation groove and is located above. Remove the baffle 34 to open the charging port 24 and Fill the roller drum 23 with stones of appropriate size as required. After a certain amount of stones are filled in the roller drum 23, the baffle 34 is installed and the charging port 24 is closed.

After the installation of the road roller mechanism 22 is completed, the vehicle body is started to drive the road roller mechanism 22 to roll and compact the roadbed 1 and the foundation trench 2. During the road rolling process of the road roller mechanism 22, the stones in the road roller barrel 23 are pressed along with the rolling force. The rotation of the road roller 23 is carried over by the three fixed seats 26, and the turning of the stones indirectly drives the road roller 23 to hammer the road surface to a certain extent, thereby achieving a better road roller effect. During the turning process of the stone, the stone falls from one side of the fixed seat 26 to the buffer block 30 below or one side of the buffer block 30, causing the buffer block 30 to slide to a certain extent on the fixed seat 26, and the movement of the buffer block 30 is effective. The impact of the turning and falling stones on the roller barrel 23 is reduced, and the damage caused by the turning stones to the roller barrel 23 and the fixed seat 26 is reduced. At the same time, the hammering force generated by the turning and falling stones is transmitted through the roller barrel 23 to the road surface, compacting the road surface more effectively to a certain extent.

When using the road construction vehicle A7 to pave graded gravel 3 or medium-coarse sand 4, first start the vehicle body A8 to move above the construction road surface, so that the two front wheels 21 and the two rear wheels 18 of the vehicle body A8 Located on both sides of the construction road. Start the hydraulic cylinder B47 to drive the paving mechanism 42 to move in the vertical direction so that the distance between the lower end of the paving tube 43 and the road surface matches the thickness of the graded gravel 3 or medium-coarse sand 4 to be laid on the construction road surface. Start the motor A56 in the spreading mechanism 42. The motor A56 drives the gear D57 on the rotating shaft A49 to rotate synchronously through the gear A55, the gear B54, the gear C53, the pulley B50, the synchronous belt 51, and the pulley A52. Each gear D57 passes the corresponding The gear E58 and the sliding sleeve 59 drive the corresponding worm 62 to rotate, and the worm 62 drives the belt roller 68 on the corresponding rotating shaft B67 to swing around the fixed axis 64 through the turbine 65 and the rotating seat A66. The synchronous swing of all the belt rollers 68 around the fixed shaft 64 can adjust the overall tilt angle of the transmission belt 95 on the belt roller 68 around the fixed shaft 64. When the overall tilt angle of the transmission belt 95 reaches the requirement, the motor A56 is stopped and the turbine 65 worm 62 The coordinated self-locking function effectively maintains the overall inclination angle of the conveyor belt 95 spirally descending around the fixed axis 64, so that the material entering from the hopper can be evenly distributed laterally along the width of the paving barrel 43 along the spiral state conveyor belt 95 with a certain inclination angle. Pave the road surface.

After the adjustment of the conveyor belt 95 is completed, the graded gravel 3 or medium-coarse sand 4 is transported into the funnel of the paving barrel 43 through the conveying equipment. When the graded gravel 3 or medium-coarse sand 4 falls through the paving barrel 43 When the road surface is being constructed and accumulation occurs in the paving tube 43, the vehicle body A8 is started to travel. As the vehicle body A8 advances and the conveying equipment continues to transport graded gravel 3 or medium coarse sand 4 into the paving tube 43 , the graded gravel 3 or medium-coarse sand 4 in the paving tube 43 is used to pave the construction road surface with a uniform thickness.

When the paving mechanism 42 completes paving the graded gravel 3 or medium-coarse sand 4 on the road surface, at the same time, the road roller mechanism 22 behind the vehicle body A8 will pave the paving mechanism 42 with the graded gravel 3 or medium-coarse sand 4 on the road surface. The sand 4 is effectively compacted, so that the laying of the graded gravel 3 base layer or the medium-coarse sand 4 cushion layer can be completed more efficiently.

When it is necessary to squeeze the gaps between the stones 5 on the surface layer of the stones 5, first start the vehicle body A8 and move it to the end of the construction road surface, and adjust the end of the lever 88 in the squeezing mechanism 74 by starting the hydraulic rod B to connect with the stones. 5 surfaces are in relative positions in the vertical direction, so that the switch valve 77 on the discharge pipe 76 is just closed when the end of the lever 88 completely interacts with the surface of the stone 5 . Then, the mixture 6 is filled into the trough A75 of the squeezing mechanism 74. As the vehicle body A8 moves along the road surface, the end of the squeezing mechanism 74 enters the lever 88 of the gap between the stones 5 under the action of the corresponding vortex spring 87. In the initial state and with the corresponding on-off valve 77 in the open state, the mixed material 6 in the trough A75 quickly falls to the gap between the stones 5 through the open on-off valve 77. The lever 88 whose end interacts with the upper surface of the stone 5 produces a certain amplitude of swing around the rotating axis D85. The lever 88 passes through the rotating axis D85, the gear K84, the gear J83, the rotating axis C82, the gear I81, the gear H80, the gear G79 and the gear F78. Drive the corresponding on-off valve 77 to close exactly, and the mixed flow in the trough A75 will not flow to the surface of the stone 5.

As the vehicle body A8 advances and the conveying equipment continues to convey the mixed material 6 into the trough A75, the discharge pipe 76 located above the surface of the stone 5 in the squeezing mechanism 74 will not leak material due to the closing of the switch valve 77. The discharge pipe 76 located above the gap of the stones 5 in the seam mechanism 74 leaks material into the gap due to the opening of the switch valve 77, thereby accurately and effectively squeezing the gaps of the stones 5 without wasting the mixture 6 .

The use process of the road construction vehicle B90 in the present invention: according to the size requirements of the stones 5 on both sides of the surface layer of the construction road stones 5 that are slightly larger than the size of the stones 5 in the middle position, the size is filled into the material trough B91 of the vehicle body B99 The smaller stones 5 are filled into the two troughs C92 of the vehicle body B99 with the larger stones 5 respectively. As the vehicle body B99 travels on the construction road, the motor B98 is started. The motor B98 synchronously drives the trough B91 and the conveyor belt 95 in the two troughs C92 to run synchronously through the gear M97 and the gear L96. The conveyor belts 95 respectively transport the corresponding stones 5 to the corresponding discharge openings and transport them to the corresponding discharge openings in a single layer state. The stones 5 in the trough B91 are transported by the conveyor belt 95 through the corresponding outlet and are laid in a single layer in the middle of the construction road under the guidance of the guide tube A93. The stones 5 in the two troughs C92 are respectively The corresponding conveyor belt 95 is transported through the corresponding discharge port and is laid flat on both sides of the construction road in a single layer state under the guidance of the corresponding guide tube B94, thus saving the manual effort to classify the stones 5 and move them to the middle or both sides of the construction road. The process of substantial movement is highly efficient for laying the 5-surface layer of block stones.

To sum up, the beneficial effects of the present invention are as follows: the surface layer in the road structure of the present invention is manually paved with stones 5 that are relatively large in size and relatively regular in shape, and the mixture 6 is used to squeeze the joints between the stones 5. The stones 5 on the surface of the layer are slightly higher than the mixture 6, so that there is a certain slight unevenness on the surface of the surface layer. The vehicle mainly comes into contact with the stones 5 during driving, which avoids direct contact between the driving vehicle and the mixture 6 and effectively controls the road surface. Generation of dust.

The main mineral components of the surface layer mixture 6 in the road structure of the present invention are tobermulite, wollastonite, zeolite and calcite minerals, etc. After a certain period of chemical reaction, silicate crystals can be formed to produce cementing strength. , to ensure that the surface layer does not produce loose dust, thus suppressing the generation of dust.

The roadbed 1 and base trench 2 in the road structure of the present invention are paved with three layers of graded gravel, which is in a state of two-way compression and does not transmit tensile stress or tensile strain. It can fully absorb the strain energy released by the cracks in the lower layer, thereby achieving suppression The effect of cracks; the isolation effect of graded gravel 3 can make the force of vehicles on the road surface more uniform, and the deformation during the road operation period is limited, improving the durability of the road.

Compared with the traditional road construction method, the road construction vehicle A7 and the road construction vehicle B90 in the present invention do not require the participation of multiple equipments. The construction process is simple and the efficiency is high. Especially for the Yonglin small road with a small construction scale, the technological process Simple and easy to operate.

Claims

A kind of environmentally friendly road construction equipment for photovoltaic power stations, which is characterized in that it includes road construction vehicle A and road construction vehicle B. Road construction vehicle A independently lays the road base and road cushion in sequence, and road construction vehicle B lays the stones. A single layer is placed on the cushion along the length of the road in a distribution state of small middle and large edges for manual paving of the road surface layer; road repair vehicle A uses the mixture to squeeze the gaps in the surface layer after the road surface layer is laid;

The road construction vehicle A includes a vehicle body A, a rear wheel, a hydraulic cylinder A, a front wheel, a road rolling mechanism, a hydraulic cylinder B, a paving mechanism, and a squeezing mechanism. The vehicle body A has two front wheels and two rear wheels. The wheels are driven by the corresponding hydraulic cylinder A and can move axially according to the road conditions on both sides of the road so that the vehicle body A can travel smoothly on a flat road; the front end of the vehicle body A slides vertically and is driven by the hydraulic cylinder B to lay the road base in sequence. and a paving mechanism for the road cushion; the paving mechanism is equipped with a squeezing mechanism that automatically fills the joints of the artificially laid road surface; the installation slot A at the rear end of the vehicle body A is installed with a paving mechanism for the front to lay the pavement on the road surface Detachable road compaction mechanism for compacting materials;

The road construction vehicle B includes a vehicle body B, a material trough B, a material trough C, a guide tube A, a guide tube B, a conveyor belt, and a motor B. The body of the vehicle body B is divided into a material trough B and a material trough B located in the middle. Two troughs C are distributed on both sides of the trough B; the size of the rocks accommodated in the trough B is smaller than the size of the rocks accommodated in the trough C on both sides; the bottoms of the trough B and the trough C are both equipped with A conveyor belt that is synchronously driven by motor B and delivers stones to the outlet at the end of trough B or trough C; a guide tube A is installed at the outlet at the end of trough B to guide the corresponding stones to the middle of the road. A guide tube B is installed at the outlet at the rear of the trough B to guide the corresponding stones to the edge of the road.
A kind of environmentally friendly road construction equipment for photovoltaic power stations according to claim 1, characterized in that: the road rolling mechanism includes a road roller, a fixed seat, a buffer block, a spring A, a baffle, a pin, and a slider A. Install blocks, blocking blocks, and bolts. The cylindrical surface of the road roller has a charging port for filling stones inward. The charging port is equipped with an arc-shaped baffle for opening and closing through countersunk bolts; the circumferential direction is uniform. The three fixed seats distributed on the inner wall of the roller are all equipped with buffer blocks that slide around the central axis of the cylinder and are equipped with a number of springs A that reset the buffer blocks; both ends of the cylinder are equipped with pins that are concentric with the central axis of the cylinder. There is a slider A that rotates on the shaft. The slider A slides radially along the pin axis in the chute D of the installation block; the two installation blocks are inserted into the installation grooves B on both sides of the installation groove A in the direction perpendicular to the wheel axis A. Inside, each mounting slot B is equipped with a blocking block that seals the mounting block in it. The blocking block is fixed by the bolts on the side wall of the car body A.
A photovoltaic power station environmentally friendly road construction equipment according to claim 1, characterized in that: the paving mechanism includes a paving cylinder, a hydraulic cylinder B, a hopper, a rotating shaft A, a pulley B, a synchronous belt, and a pulley A. , gear C, gear B, gear A, motor A, gear D, gear E, sliding sleeve, spring B, worm, fixed shaft, turbine, rotating seat A, rotating shaft B, belt roller, slider C, trapezoidal guide block B , guide rail, trapezoidal guide channel B, in which the paving tube is the same width as the road and moves vertically at the front end of the vehicle body A driven by the hydraulic cylinder B. There is a loading port on the upper end side, and a funnel at the loading port; There are a number of swivel seats A evenly spaced along the axial direction, which are rotated on a fixed axis parallel to the width direction of the cylinder. Each swivel seat is equipped with a turbine on the same central axis as the fixed axis. The turbine is connected to the front side wall of the paving tube. The exposed parts of each worm are axially slid with sliding sleeves, and each sliding sleeve is threaded with bolts to lock it to the corresponding worm; each sliding sleeve has a screw that is aligned with the axis of the worm. To the return spring B, the gear E installed on the sliding sleeve is driven and matched with the gear D on the rotating shaft A parallel to the fixed axis outside the paving barrel; the pulley B installed on the rotating shaft A is connected to the outer wall of the paving barrel through a synchronous belt. The pulley A is connected by transmission; the gear C on the shaft where the pulley A is located meshes with the gear B on the outer wall of the paving barrel, and the gear B meshes with the gear A on the output shaft of motor A on the outer wall of the paving barrel; each swivel seat A is rotated with a rotating shaft B perpendicular to the fixed axis, and a belt roller is installed on the rotating axis B; starting from the side of the hopper, the transmission belt installed on the belt roller is twisted downwards in a spiral around the fixed axis; the belt roller is installed The other end of the rotating shaft B is rotated with a slide block C, which slides around the fixed axis on the corresponding guide rail in the paving tube.
A kind of environmentally friendly road construction equipment for photovoltaic power stations according to claim 3, characterized in that: the squeezing mechanism includes a trough A, a discharge pipe, a switch valve, a gear F, a gear G, a gear H, a gear I, Rotary shaft C, gear J, gear K, rotating shaft D, swivel seat B, vortex spring, lever, and limit swing block. Among them, the lower end of the material trough A installed on the side wall of the paving tube is evenly distributed along the width direction of the road surface with a number of connecting parts. Discharge pipes, each discharge pipe is equipped with a switch valve that switches it on and off; the gear F installed on the input shaft of the switch valve meshes with the gear G installed on the side wall of the discharge pipe, and the gear G installed on the outside of the discharge pipe The rotating shaft C is equipped with a gear I that meshes with the gear H on the axis where the gear G is located. The two rotating seats B on the outside of the discharge pipe are rotated with a rotating shaft D parallel to the fixed axis, and a vortex spring for rotating the rotating shaft D to reset is installed; The gear K installed on the rotating shaft D meshes with the gear J on the rotating shaft C; the lever installed on the rotating shaft D cooperates with the limit pendulum block on the rotating base B.
The road structure constructed using the environmentally friendly road construction equipment of a photovoltaic power station according to claim 1 is characterized in that it includes a roadbed, a foundation trench, graded gravel, medium-coarse sand, rocks and mixed materials, wherein the roadbed The bottom of the excavation trench with an inverted trapezoidal cross-section is laid with a certain thickness of base layer using graded gravel. On the base layer of graded gravel, a certain thickness of cushion layer is laid with medium-coarse sand. On top of the medium-coarse sand cushion layer A single layer of large-sized and regular-shaped stones is used to lay the surface layer; a mixture is used to squeeze the joints between the stones; the upper surface of the stones is higher than the jointing mixture, so that the surface of the stone surface has a certain degree of unevenness.
The road structure according to claim 5, characterized in that: the main mineral components of the squeezing mixture are tobermulite, wollastonite, zeolite and calcite minerals; the road construction materials are mainly local earth and stone materials. host.
The road structure according to claim 5, characterized in that: the thickness of the graded gravel base layer is 15cm to 20cm; the graded gravel should not contain clay blocks, plants and other impurities, and should contain flat and slender particles. Or the content of needle-like flake particles should not exceed 20%; the surface of the graded gravel should be rough, angular, and the particle shape is close to the cubic graded gravel. The crushing value of the graded gravel should meet the "Highway Engineering Aggregate Test Regulations" 》Indicators determined by testing using standard methods; the laying thickness of medium-coarse sand cushion is 5cm; the particle size of medium-coarse sand is well-graded 0.15~5mm; the stone size is 15cm~20cm; the particle size used in the middle of the road is relatively small For small stones, stones with relatively larger particle sizes should be used at the edge of the road. The diameter difference between the stones in the middle and the edge is about 1cm to 2cm.
The road structure according to claim 5, characterized in that: the components of the squeezing mixture are fly ash, cement and sand, and the three are in a weight ratio of 1:3:18:2; The total content of Si02, A1203, and Fe203 in selected fly ash should be greater than 70%, the loss on ignition of fly ash should not exceed 20%, and the specific surface area should be greater than 2500cm2/s; the cement should be grade 42.5 ordinary Portland cement. ; The sand shall not contain harmful debris, and the mud content shall not exceed 5%.