A reinforced mortar-bound crushed stone paving device and construction method for road base construction

Abstract

This invention discloses a reinforced cement-binder aggregate paving device and construction method for road base construction. The paving device includes a paving machine box, main and backup power supplies, reinforcing supports, a feeding assembly, a dropping platform, a discharge chute, a loading assembly, and a compaction assembly. The main and backup power supplies are fixedly installed at the center of the top end face of the paving machine box, and reinforcing supports are fixedly installed at the center of both end faces of the main and backup power supplies. The feeding assembly is located at the center of the inner side of the paving machine box. The paving device of this invention has a simple structure, good feeding function, and can improve the mixing effect of materials. At the same time, it is convenient to feed materials. Through periodic and uniform feeding, it can effectively avoid uneven material thickness, which would affect the quality of the roadbed. Moreover, it can perform preliminary compaction and leveling of the paved material, thereby effectively preventing material collapse during stacking and affecting subsequent roadbed processing, and effectively improving the construction quality of the roadbed.

Description

Technical Field

[0001] This invention relates to the field of road construction technology, and in particular to a reinforced cement-lime aggregate paving device and construction method for road base construction. Background Technology

[0002] Reinforced mortar-bound macadam pavement refers to a mixed structure formed by compacting and injecting mortar, relying on the interlocking of macadam stones and the bonding effect of clay; during road construction, mortar-bound macadam is laid using a paving device.

[0003] Existing paving devices suffer from poor overall stability during use. Uneven material distribution during paving results in inconsistent material thickness on the roadbed surface. Furthermore, the stockpiled material is prone to collapse, leading to varying road surface heights and impacting the quality of roadbed construction. Therefore, it is essential to design a reinforced cement-lime aggregate paving device and construction method for road base construction. Summary of the Invention

[0004] The problem solved by this invention is to provide a reinforced cement-binder aggregate paving device and construction method for road base construction. The paving device has a simple structure and is easy to install and connect. During use, it has a good feeding function and can improve the mixing effect of materials. At the same time, it is convenient to feed materials. Through periodic and uniform feeding, it can effectively avoid uneven material thickness, which would affect the quality of the roadbed. Moreover, it can perform preliminary compaction and leveling of the paved materials, thereby effectively preventing material collapse during stacking and affecting subsequent roadbed processing, and effectively improving the construction quality of the roadbed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A reinforced cement-binder aggregate paving device for road base construction includes a paving machine box, a main and backup power supply, reinforcing support rods, a material feeding assembly, a material dropping platform, a material discharge chute, a material feeding assembly, and a pressing assembly. The main and backup power supply is fixedly installed at the center of the top end face of the paving machine box. Reinforcing support rods are fixedly installed at the center of both ends face of the main and backup power supply. The material feeding assembly is arranged at the center of the inner side of the paving machine box. A material discharge chute is opened at the center of the bottom end face of the paving machine box, and a material dropping platform is fixedly installed at the bottom of the material discharge chute. A material feeding assembly is arranged at the top of one side of the outer wall of the paving machine box, and a pressing assembly is arranged at the bottom of one side of the outer wall of the paving machine box.

[0007] The feeding assembly includes a drive shaft, a mixing rack, an electric guide rail, an electric slide, a lever, a buffer groove, a buffer spring, a discharge plate, and a discharge rod. The drive shaft is inserted and installed at the center of the bottom of the feeding machine box, and the mixing rack is fixedly installed at the center of the outer wall of the drive shaft. Electric guide rails are fixedly installed at both ends of the outer wall of the drive shaft, and an electric slide is connected and installed on the outer side of the electric guide rail. A lever is fixedly installed at the center of the outer wall of the electric slide. A buffer groove is opened at the center of one side of the inner wall of the discharge trough, and buffer springs are fixedly installed on both sides inside the buffer groove. A discharge plate is fixedly installed at the other end of the buffer spring, and the discharge plate is located inside the discharge trough. Discharge rods are fixedly installed at both ends of the top of the discharge plate, and the discharge rods are located outside the lever.

[0008] As a further aspect of the present invention: auxiliary mounting brackets are fixedly installed on both sides of the other end of the material spreading machine box and on the top end face of the main and backup power supplies.

[0009] As a further embodiment of the present invention: two buffer back plates are fixedly installed at both ends of the material spreading machine box, and one end of the reinforcing support rod is fixedly connected to the outer wall of the buffer back plate. A transmission cover is fixedly installed at one end of the buffer back plate. A first motor is fixedly installed on the top inner side of the transmission cover on one side of the material spreading machine box. A drive wheel is connected to one end of the motor shaft of the first motor. A driven wheel is connected to one end of the drive shaft through the transmission cover. A transmission belt is connected to the outer side of the driven wheel and the drive wheel. A shock-absorbing end cover is fixedly installed on the bottom inner side of the transmission cover on the other side of the material spreading machine box. The other end of the drive shaft passes through the transmission cover and is connected to the shock-absorbing end cover.

[0010] As a further embodiment of the present invention: the feeding assembly includes a material preparation box, a feeding chamber, a first electric cylinder, a first piston rod, a feeding trough, a feeding baffle, and a sealing box cover. The material preparation box is fixedly installed on the top of one side of the outer wall of the material spreading machine box, and the material preparation box has a feeding chamber inside. The feeding trough is opened on one side of the bottom of the feeding chamber and is connected to the interior of the material spreading machine box. The first electric cylinder is fixedly installed on the top side of the inner wall of the material spreading machine box, and a first piston rod is connected to one end of the first electric cylinder. A feeding baffle is connected to one end of the first piston rod, and the top of one end of the feeding baffle is fitted and connected to the feeding trough. A sealing box cover is installed on the top side of the material preparation box via a hinge.

[0011] As a further embodiment of the present invention: a lifting plate is fixedly installed on one side of the bottom end face of the feeding trough, and one side of the feeding baffle is in close contact with the end face of the lifting plate.

[0012] As a further embodiment of the present invention: the pressing assembly includes fixed wall panels, a crossbeam frame, a guide support, a second electric cylinder, a second piston rod, a pressing machine housing, a second motor, and a pressing roller. The two fixed wall panels are welded and fixedly installed at both ends of the bottom side of the outer wall of the material spreading machine box, and a crossbeam frame is fixedly installed at the center of one end of the two fixed wall panels. A guide support is fixedly installed at one end of the crossbeam frame, and a pressing machine housing is provided below the bottom of the two guide supports. The second motor is fixedly installed on both sides of the interior of the pressing machine housing, and a pressing roller is fixedly installed on the motor shaft at one end of the second motor. The bottom of one end of the pressing roller is located on the outside of the pressing machine housing.

[0013] As a further aspect of the present invention: a second electric cylinder is fixedly installed at the center of the end face of the guide support, a second piston rod is installed at one bottom end of the second electric cylinder, and the bottom ends of the two second piston rods are fixedly connected to both sides of the top end face of the pressing machine housing.

[0014] A construction method for a reinforced cement-bearing aggregate paving device for road base construction includes the following steps:

[0015] Step S1: In use, the device is connected to the drive equipment through the auxiliary mounting bracket on the side of the paving machine box and the main and backup power supply, so that the material drop platform can be located on the top of the roadbed. The main and backup power supply can power the device, and the reinforced mud-lime aggregate material is stored through the feeding component. After opening the sealed box cover on the top of the material box, the material is put into the inside of the feeding chamber, so that the material is piled on the top of the feeding trough. When the first electric cylinder works, the feeding trough is moved through the first piston rod, so that the feeding baffle is separated from the feeding trough, and the material on the top of the feeding trough falls into the inside of the paving machine box through the lifting plate.

[0016] Step S2: The material feeding assembly enables material feeding and spreading. When the first motor inside the transmission cover is working, it drives the drive wheel to rotate via the motor shaft. The drive wheel drives the driven wheel to rotate via the transmission belt, thereby causing the drive shaft connected to the driven wheel to rotate inside the material spreading machine box. The drive shaft can drive the mixing rack to stir and mix the material, making the material more uniformly mixed. When feeding is required after stirring for a period of time, the electric guide rail is working, causing the electric slide to move outside the electric guide rail, thereby driving the actuating rod to move outside the unloading rod. As the drive shaft rotates, it can drive the actuating rod to rotate. The rotating actuating rod can push the unloading rod to move. The unloading rod, which is pushed by the force, can push the unloading plate to move, thus unloading the material. One end of the plate presses against the buffer groove inside the buffer spring, causing the unloading plate to move to the inside of the buffer spring. This allows the material at the top of the unloading plate inside the material distribution machine box to fall through the discharge chute and onto the discharge platform for unloading. When the actuating rod rotates to separate from the unloading rod, the buffer groove allows the unloading plate to reset, thus sealing the discharge chute. The drive shaft drives the actuating rod to rotate one revolution, allowing for one unloading operation. As the drive shaft rotates continuously, unloading continues. The reinforced support rod and buffer back plate provide a stable support structure for the transmission cover, and the shock-absorbing end cap effectively reduces the shaking generated when the transmission belt rotates, thereby improving the overall structural stability.

[0017] Step S3: The pressing assembly can perform the pressing process. The fallen material is piled on the roadbed. The second electric cylinder on the end face of the guide support is activated, which can adjust the height of the pressing machine housing through the second piston rod. At the same time, the second motor inside the pressing machine housing is activated, which can drive the pressing roller to rotate, so that the pressing roller can press the material flat. As the height of the pressing machine housing is adjusted, the pressing depth can be adjusted. The structural stability of the guide support can be improved by fixing the wall panel and the crossbeam frame.

[0018] The beneficial effects of this invention are as follows: The material laying device of this invention has a simple structure, good overall structural stability, and is easy to install and connect; during use, the feeding component has a good feeding function, and the discharging component can improve the mixing effect of the material. At the same time, it is convenient to discharge the material. Through periodic and uniform discharging, it can effectively avoid uneven material thickness, which would affect the quality of the roadbed; moreover, the compaction component can perform preliminary compaction and leveling of the laid material, and the compaction depth can be adjusted according to needs, thereby effectively preventing the material from collapsing during stacking, which would affect the subsequent processing of the roadbed and effectively improve the construction quality of the roadbed. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the first overall structure of the present invention;

[0020] Figure 2This is a schematic diagram of the second overall structure of the present invention;

[0021] Figure 3 This is the overall front view of the present invention;

[0022] Figure 4 This is a partial structural diagram of the present invention;

[0023] Figure 5 This is an overall top view of the present invention;

[0024] Figure 6 For the present invention Figure 5 AA region structure diagram in the image;

[0025] Figure 7 For the present invention Figure 5 Local structural diagram of the BB region in the image;

[0026] Legend: 1. Material spreading machine chassis; 2. Main and backup power supplies; 3. Reinforcing support rods; 4. Material feeding assembly; 5. Material dropping platform; 6. Material discharge chute; 7. Material loading assembly; 8. Pressing assembly; 9. Auxiliary mounting bracket; 41. Buffer back plate; 42. Transmission cover; 43. First motor; 44. Drive wheel; 45. Transmission belt; 46. Driven wheel; 47. Drive shaft; 48. Mixing rack; 49. Electric guide rail; 410. Electric slide; 411. Actuating lever; 412. Buffer 413. Buffer spring; 414. Unloading plate; 415. Unloading rod; 71. Material preparation box; 72. Feeding chamber; 73. First electric cylinder; 74. First piston rod; 75. Feeding trough; 76. Feeding baffle; 77. Lifting plate; 78. Sealing box cover; 81. Fixed wall panel; 82. Crossbeam frame; 83. Guide support; 84. Second electric cylinder; 85. Second piston rod; 86. Pressing machine housing; 87. Second motor; 88. Pressing roller. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Specific implementation examples are given below.

[0029] See Figure 1-7A reinforced cement-binder aggregate paving device for road base construction includes a paving machine box 1, a main and backup power supply 2, a reinforcing support rod 3, a material feeding assembly 4, a material dropping platform 5, a material discharge chute 6, a material feeding assembly 7, and a pressing assembly 8. The main and backup power supply 2 is fixedly installed at the center of the top end face of the paving machine box 1. The reinforcing support rod 3 is fixedly installed at the center of both ends face of the main and backup power supply 2. The material feeding assembly 4 is provided at the center of the inner side of the paving machine box 1. The material discharge chute 6 is opened at the center of the bottom end face of the paving machine box 1, and the material dropping platform 5 is fixedly installed at the bottom of the material discharge chute 6. The material feeding assembly 7 is provided at the top of one side of the outer wall of the paving machine box 1, and the pressing assembly 8 is provided at the bottom of one side of the outer wall of the paving machine box 1.

[0030] The feeding assembly 4 includes a drive shaft 47, a mixing rack 48, an electric guide rail 49, an electric slide 410, a lever 411, a buffer groove 412, a buffer spring 413, a discharge plate 414, and a discharge rod 415. The drive shaft 47 is inserted and installed at the bottom center of the spreading machine housing 1, and the mixing rack 48 is fixedly installed at the center of the outer wall of the drive shaft 47. The electric guide rails 49 are fixedly installed at both ends of the outer wall of the drive shaft 47, and the electric slide is connected and installed on the outer side of the electric guide rails 49. 410, an actuating rod 411 is fixedly installed in the center of the outer wall of the electric slide 410. A buffer groove 412 is opened in the center of one side of the inner wall of the discharge trough 6. Buffer springs 413 are fixedly installed on both sides inside the buffer groove 412. A discharge plate 414 is fixedly installed at the other end of the buffer spring 413. The discharge plate 414 is located inside the discharge trough 6. Discharge rods 415 are fixedly installed at both ends of the top of the discharge plate 414. The discharge rods 415 are located outside the actuating rod 411.

[0031] Auxiliary mounting brackets 9 are fixedly installed on both sides of the other end of the material spreading machine box 1 and on the top end face of the main and backup power supply 2. In use, the device is connected to the drive equipment through the auxiliary mounting brackets 9 on one side of the material spreading machine box 1 and the main and backup power supply 2, so that the material dropping platform 5 can be located on the top of the roadbed.

[0032] Two buffer back plates 41 are fixedly installed at both ends of the material spreading machine box 1, and one end of the reinforcing support rod 3 is fixedly connected to the outer wall of the buffer back plate 41. A transmission cover 42 is fixedly installed at one end of the buffer back plate 41. A first motor 43 is fixedly installed on the top inner side of the transmission cover 42 on one side of the material spreading machine box 1. A drive wheel 44 is connected to one end of the motor shaft of the first motor 43. A driven wheel 46 is connected to one end of the drive shaft 47 through the transmission cover 42. A transmission belt 45 is connected to the outer side of the driven wheel 46 and the drive wheel 44. A shock-absorbing end cover is fixedly installed on the bottom inner side of the transmission cover 42 on the other side of the material spreading machine box 1. The other end of the drive shaft 47 is connected to the shock-absorbing end cover through the transmission cover 42, which can effectively improve the stability of the transmission.

[0033] The feeding assembly 7 includes a material preparation box 71, a feeding chamber 72, a first electric cylinder 73, a first piston rod 74, a feeding trough 75, a feeding baffle 76, and a sealing box cover 78. The material preparation box 71 is fixedly installed on the top of one side of the outer wall of the spreading machine box 1, and the feeding chamber 72 is opened inside the material preparation box 71. A feeding trough 75 is opened on one side of the bottom of the feeding chamber 72, and the feeding trough 75 communicates with the interior of the spreading machine box 1. The first electric cylinder 73 is fixedly installed on the top side of the inner wall of the spreading machine box 1, and the first piston rod 74... One end of an electric cylinder 73 is connected to a first piston rod 74, and one end of the first piston rod 74 is connected to a feeding baffle 76. The top of one end of the feeding baffle 76 is fitted and connected to the feeding trough 75. A sealing box cover 78 is installed on one side of the top of the material preparation box 71 via a hinge. A lifting plate 77 is fixedly installed on one side of the bottom end face of the feeding trough 75, and one side of the feeding baffle 76 is fitted and connected to the end face of the lifting plate 77. The feeding assembly 7 stores the reinforced mud-lime-bound crushed stone material.

[0034] The pressing assembly 8 includes fixed wall panels 81, a crossbeam frame 82, guide supports 83, a second electric cylinder 84, a second piston rod 85, a pressing machine housing 86, a second motor 87, and a pressing roller 88. Two fixed wall panels 81 are welded and fixedly installed at both ends of the bottom side of one side of the outer wall of the material spreading machine housing 1. A crossbeam frame 82 is fixedly installed at the center of one end of each of the two fixed wall panels 81, and a guide support 83 is fixedly installed at one end of the crossbeam frame 82. The pressing machine housing 86 is located below the bottom of the two guide supports 83. The interior sides of the pressing machine housing 86... Each component is fixedly equipped with a second motor 87, and a pressure roller 88 is fixedly installed on one end of the motor shaft of the second motor 87. The bottom end of the pressure roller 88 is located on the outside of the pressing machine housing 86. A second electric cylinder 84 is fixedly installed in the center of the end face of the guide support 83. A second piston rod 85 is installed at the bottom end of the second electric cylinder 84, and the bottom ends of the two second piston rods 85 are fixedly connected to the two sides of the top end face of the pressing machine housing 86. The pressing assembly 8 can perform pressing treatment, so that the material can be initially flattened, which is convenient for subsequent processing.

[0035] The working principle of this invention is as follows: In use, the device is connected to the drive equipment via the auxiliary mounting bracket 9 on the side of the paving machine box 1 and the main / backup power supply 2, so that the material drop platform 5 can be located on the top of the roadbed. The main / backup power supply 2 can supply power to the device, and the reinforced mud-lime aggregate material is stored through the feeding assembly 7. After opening the sealed box cover 78 on the top of the material storage box 71, the material is put into the inside of the feeding chamber 72, so that the material is piled on the top of the feeding trough 75. When the first electric cylinder 73 works, the first piston rod 74 drives the feeding trough 75 to move, so that the feeding baffle 76 separates from the feeding trough 75, and the material on the top of the feeding trough 75 falls into the inside of the paving machine box 1 through the lifting plate 77; the material can be discharged through the unloading assembly 4. When the first motor 43 inside the transmission cover 42 is working, it drives the drive wheel 44 to rotate via the motor shaft. The drive wheel 44 drives the driven wheel 46 to rotate via the transmission belt 45, thereby causing the drive shaft 47 connected to the driven wheel 46 to rotate inside the material spreading machine box 1. The drive shaft 47 can drive the mixing rack 48 to stir and mix the materials, thereby making the material mixture more uniform. When it is time to discharge the material after stirring for a period of time, the electric guide rail 49 is working, causing the electric slide 410 to move outside the electric guide rail 49, thereby driving the actuating rod 411 to move to the outside of the unloading rod 415. As the drive shaft 47 rotates, it can drive the actuating rod 411 to rotate. The rotating actuating rod 411 can push the unloading rod 415 to move. The unloading rod 415 is pushed by the force. The material rod 415 can push the unloading plate 414 to move. One end of the unloading plate 414 presses the buffer groove 412 inside the buffer spring 413, causing the unloading plate 414 to move to the inside of the buffer spring 413. This allows the material located at the top of the unloading plate 414 inside the material distribution machine box 1 to fall through the discharge chute 6 and onto the discharge platform 5 for material feeding. When the actuating rod 411 rotates to separate from the unloading rod 415, the unloading plate 414 can be reset under the action of the buffer groove 412, thereby blocking the discharge chute 6. The actuating rod 411 is driven by the drive shaft 47 to rotate one revolution, thus feeding once. As the drive shaft 47 rotates continuously, material feeding can continue. The reinforcing support rod 3 and the buffer back plate 41 can be used to control the transmission. The moving cover 42 has a stable support structure, and the shock-absorbing end cap can effectively reduce the shaking generated when the transmission belt 45 rotates, thereby improving the stability of the overall structure. The pressing component 8 can perform pressing treatment. The fallen material is piled on the roadbed. The second electric cylinder 84 on the end face of the guide support 83 works, and the height of the pressing machine housing 86 can be adjusted by the second piston rod 85. At the same time, the second motor 87 inside the pressing machine housing 86 works, and the second motor 87 can drive the pressing roller 88 to rotate, so that the pressing roller 88 can press the material flat. As the height of the pressing machine housing 86 is adjusted, the pressing depth can be adjusted. The structural stability of the guide support 83 can be improved by the fixed wall plate 81 and the crossbeam frame 82.

[0036] A construction method for a reinforced cement-bearing aggregate paving device for road base construction includes the following steps:

[0037] Step S1: In use, the device is connected to the drive equipment through the auxiliary mounting bracket 9 on the side of the paving machine box 1 and the main and backup power supply 2, so that the material drop platform 5 can be located on the top of the roadbed. The main and backup power supply 2 can supply power to the device, and the reinforced mud-lime aggregate material is stored through the feeding assembly 7. After opening the sealing box cover 78 on the top of the material preparation box 71, the material is put into the inside of the feeding chamber 72, so that the material is piled on the top of the feeding trough 75. When the first electric cylinder 73 works, the feeding trough 75 is moved through the first piston rod 74, so that the feeding baffle 76 is separated from the feeding trough 75, and the material on the top of the feeding trough 75 falls into the inside of the paving machine box 1 through the lifting plate 77.

[0038] Step S2: Material is fed and spread through the feeding assembly 4. When the first motor 43 inside the transmission cover 42 is working, it drives the drive wheel 44 to rotate through the motor shaft. The drive wheel 44 drives the driven wheel 46 to rotate through the transmission belt 45, thereby causing the drive shaft 47 connected to the driven wheel 46 to rotate inside the spreading machine box 1. The drive shaft 47 can drive the mixing rack 48 to stir and mix the material, thereby making the material more uniformly mixed. When feeding is required after stirring for a period of time, the electric guide rail 49 is working, causing the electric slide 410 to move outside the electric guide rail 49, thereby driving the actuating rod 411 to move outside the unloading rod 415. As the drive shaft 47 rotates, it can drive the actuating rod 411 to rotate. The rotating actuating rod 411 can push the unloading rod 415 to move. The unloading rod 415, which is pushed by the force, can push the unloading plate 414 to move. One end of the unloading plate 414 presses against the buffer groove 412 inside the buffer spring 413, causing the unloading plate 414 to move to the inside of the buffer spring 413. This allows the material located at the top of the unloading plate 414 inside the material distribution machine box 1 to fall through the discharge chute 6 and onto the discharge platform 5 for material feeding. When the actuating rod 411 rotates to separate from the unloading rod 415, the unloading plate 414 can be reset under the action of the buffer groove 412, thereby blocking the discharge chute 6. The actuating rod 411 is driven to rotate one revolution by the drive shaft 47, thus enabling one feeding. As the drive shaft 47 rotates continuously, material feeding can continue. The reinforced support rod 3 and the buffer back plate 41 provide a stable support structure for the transmission cover 42, and the shock-absorbing end cover effectively reduces the shaking generated when the transmission belt 45 rotates, thereby improving the overall structural stability.

[0039] Step S3: The pressing component 8 can perform the pressing process. The fallen material is piled on the roadbed. The second electric cylinder 84 on the end face of the guide support 83 is working. The height of the pressing machine housing 86 can be adjusted by the second piston rod 85. At the same time, the second motor 87 inside the pressing machine housing 86 is working. The second motor 87 can drive the pressing roller 88 to rotate, so that the pressing roller 88 can press the material flat. As the height of the pressing machine housing 86 is adjusted, the pressing depth can be adjusted. The structural stability of the guide support 83 can be improved by fixing the wall plate 81 and the crossbeam frame 82.

[0040] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A reinforcing mortar-bound macadam paving device for road base construction, characterized by, The utility model relates to paving machine box, main spare power supply, reinforcing support, blanking assembly, blanking table, discharge chute, feeding assembly and pressure cover assembly, the top end face central fixed mounting of paving machine box has main spare power supply, the both sides end face central fixed mounting of main spare power supply has reinforcing support, the inside central of paving machine box is provided with blanking assembly, the bottom end face central of paving machine box is provided with discharge chute, and the bottom fixed mounting of discharge chute has blanking table, the outer wall one side top of paving machine box is provided with feeding assembly, and the outer wall one side bottom of paving machine box is provided with pressure cover assembly, The discharging assembly comprises a driving shaft, a stirring frame, an electric guide rail, an electric sliding seat, a pushing rod, a buffer groove, a buffer spring, a discharging plate and a discharging rod, the driving shaft is insertedly installed at the bottom center of the paving machine box, a stirring frame is fixedly installed on the outer wall center of the driving shaft, electric guide rails are fixedly installed on the two ends of the outer wall of the driving shaft, electric sliding seats are connected and installed on the outer sides of the electric guide rails, a pushing rod is fixedly installed on the outer wall center of the electric sliding seat, a buffer groove is formed in the inner wall of the discharging groove, buffer springs are fixedly installed on the two sides in the buffer groove, a discharging plate is fixedly installed on the other end of the buffer spring, the discharging plate is located in the discharging groove, discharging rods are fixedly installed on the two ends of the top of the discharging plate, and the discharging rods are located on the outer side of the pushing rod; auxiliary mounting frames are fixedly installed on the two sides of the other end of the paving machine box and the top end face of the main and standby power supplies; two buffer back plates are fixedly installed on the two ends of the paving machine box, one end of the reinforcing support rod is fixedly connected with the outer wall of the buffer back plate, a transmission cover is fixedly installed on one end of the buffer back plate, a first motor is fixedly installed on the inner side top of the transmission cover on one side of the paving machine box, a driving wheel is connected and installed on one end of the driving shaft through the transmission cover, a transmission belt is connected and installed on the outer sides of the driving wheel and the driving wheel, a buffer end cover is fixedly installed on the inner side bottom of the transmission cover on the other side of the paving machine box, and the other end of the driving shaft is connected with the buffer end cover through the transmission cover; the feeding assembly comprises a material preparation box, a feeding chamber, a first electric cylinder, a first piston top rod, a feeding groove, a feeding baffle and a sealing box cover, the material preparation box is fixedly installed on the outer wall side top of the paving machine box, a feeding chamber is formed in the interior of the material preparation box, a feeding groove is formed in the bottom side of the feeding chamber, the feeding groove is communicated with the interior of the paving machine box, the first electric cylinder is fixedly installed on the inner wall top side of the paving machine box, a first piston top rod is connected and installed on one end of the first electric cylinder, a feeding baffle is connected and installed on one end of the first piston top rod, one end top of the feeding baffle is abuttingly connected with the feeding groove, and the sealing box cover is hingedly installed on the top side of the material preparation box; a lifting plate is fixedly installed on the bottom end face side of the feeding groove, and one side of the feeding baffle is abuttingly connected with the end face of the lifting plate; the pressing assembly comprises fixed wall plates, beam frames, guide supports, a second electric cylinder, a second piston top rod, a pressing machine shell, a second motor and pressing rollers, two fixed wall plates are fixedly installed on the outer wall side bottom of the paving machine box through welding, a beam frame is fixedly installed on the center of one end of the two fixed wall plates, a guide support is fixedly installed on one end of the beam frame, a pressing machine shell is arranged below the bottom of the two guide supports, second motors are fixedly installed on the two sides in the interior of the pressing machine shell, pressing rollers are fixedly installed on the motor shafts of the second motors, and one end bottom of the pressing rollers is located on the outer side of the pressing machine shell.The end face of the guide support is centrally fixedly provided with a second electric cylinder, the bottom end of the second electric cylinder is provided with a second piston top rod, and the bottom ends of the two second piston top rods are fixedly connected with the top end face of the pressing cover shell. It comprises the following steps: Step S1: when using, the device is connected with the driving equipment through the auxiliary mounting frame on one side of the paving machine box and the main spare power supply, so that the blanking table can be located on the top of the roadbed, the main spare power supply can power the device, and the reinforced mortar and gravel material is stored through the feeding assembly, the sealing cover on the top of the standby material box is opened, the material is put into the inside of the feeding chamber, the material is piled on the top of the feeding groove, when the first electric cylinder works, the feeding groove is moved by the first piston top rod, so that the feeding baffle is separated from the feeding groove, and the material on the top of the feeding groove falls into the inside of the paving machine box through the material lifting plate; Step S2: the blanking and paving are carried out through the blanking assembly, when the first motor in the transmission cover works, the driving shaft connected with the driven wheel rotates in the inside of the paving machine box through the transmission belt driven by the driving wheel, so that the material is stirred and mixed by the stirring frame driven by the driving shaft, so that the material is mixed more uniformly, when the stirring time is needed, the electric guide rail works, so that the electric sliding seat moves outside the electric guide rail, so that the stirring rod moves outside the discharging rod, when the driving shaft rotates, the stirring rod can be rotated, the rotating stirring rod can push the discharging rod to move, the discharging rod pushed by the force can push the discharging plate to move, one end of the discharging plate extrudes the buffer groove in the inside of the buffer spring, so that the discharging plate is transferred to the inside of the buffer spring, so that the material on the top of the discharging plate in the inside of the paving machine box falls out of the blanking table through the discharge chute, so that the blanking and paving are carried out through the blanking table; when the stirring rod rotates and separates from the discharging rod, under the action of the buffer groove, the discharging plate can be reset, so as to block the discharge chute, the stirring rod is rotated by the driving shaft, so as to carry out the blanking and paving once, with the continuous rotation of the driving shaft, the blanking and paving can be continuously carried out; the transmission cover has a stable supporting structure through the reinforcing support and the buffer back plate, and the vibration generated when the transmission belt rotates can be effectively reduced through the damping end cover, so as to improve the stability of the overall structure; Step S3: the material can be pressed and covered by the pressing and covering assembly, the material that falls is placed on the roadbed, the second electric cylinder at the end face of the guide support works, the height of the pressing and covering shell can be adjusted through the second piston rod, at the same time, the second motor in the pressing and covering shell works, the pressing roller can be driven to rotate through the second motor, so that the pressing roller can press and cover the material flat, with the height adjustment of the pressing and covering shell, the depth of the pressing and covering can be adjusted; the structural stability of the guide support can be improved through the fixed wall plate and the cross beam frame.

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