Stone paving device

Abstract

The utility model relates to a stone paving device. The stone paving device is characterized by structurally comprising a stone bin, a long blanking groove, a roll shaft, a guide groove and a guide pipe, the upper end of the long discharging groove is communicated with the bottom of the stone bin, the roller shaft is located at a lower port of the long discharging groove, the axial direction of the roller shaft is consistent with the length direction of the long discharging groove, the roller shaft is driven by a driving device to rotate, a discharging port is formed in one side of the lower port of the long discharging groove, and the discharging port is communicated with the lower end of the long discharging groove. A discharge port is formed in the roller shaft, a switch plate is arranged at the discharge port and used for controlling opening and closing of the discharge port, a plurality of guide grooves are formed in the two ends of the roller shaft respectively and located on the same side of the discharge port, guide pipes are rotatably connected to the lower ends of part of or all the guide grooves, and each guide pipe is of a bent structure. According to the utility model, the paving width of stones can be conveniently adjusted to adapt to road surfaces with different widths.

Description

Technical Field

[0001] The utility model relates to a road maintenance device, in particular to a stone spreading device. Background Art

[0002] After a certain period of use, the asphalt pavement will have certain damage, such as cracks, potholes and other problems. The in-situ hot recycling technology of the road surface is a rapid road repair technology. When repairing the road surface by in-situ hot recycling, it is necessary to spread a layer of gravel on the road surface first. In the patent application "An in-situ hot recycling integrated vehicle for asphalt pavement" with the publication number of CN110219227A, a stone spreading device is arranged in the device. The stone spreading device is located in front of the rear wheels. The stone spreading device includes a feeding pipe and a scraping plate. The feeding pipe extends from the bottom of the stone bin to the front of the rear wheels. The scraping plate is located between the lower port of the feeding pipe and the rear wheels, and is used for evenly spreading the stones falling on the road surface. This stone spreading device can realize the spreading operation of stones on a certain width, but it cannot adjust the spreading width of the stones and cannot adapt to the repair of roads with different widths. Moreover, the current roads are designed with a higher middle and lower sides, that is, the materials in the middle of the road surface are thick and the materials on both sides are thin. The completely uniform spreading in the width direction of the prior art is not suitable for the current road surface structure.

[0003] Therefore, there is an urgent need for a stone spreading device that can adjust the spreading width. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a stone spreading device to solve the problem that the spreading width of the stones cannot be adjusted at present.

[0005] The utility model is realized as follows: A stone spreading device includes a stone bin, a feeding long groove, a roller shaft, a material guiding groove and a conduit; the upper end of the feeding long groove is communicated with the bottom of the stone bin, the roller shaft is located at the lower port of the feeding long groove, the axial direction of the roller shaft is consistent with the length direction of the feeding long groove, the roller shaft is driven to rotate by a driving device, an outlet is arranged on one side of the lower port of the feeding long groove, a switch plate is arranged at the outlet, and the switch plate is used to control the opening and closing of the outlet. A plurality of material guiding grooves are respectively arranged at both ends of the roller shaft, the material guiding grooves are located on the same side of the outlet, and a conduit is rotatably connected to the lower end of each material guiding groove, and the conduit is a bent structure.

[0006] Further, the outlets are uniformly distributed along the length direction of the feeding long groove, and a plurality of the material guiding grooves at one end of the roller shaft correspond to a plurality of the outlets at the end of the feeding long groove one by one.

[0007] Further, a slidable connection is provided between the switch board and the side wall of the blanking long groove. A plurality of tooth grooves are provided at the lower end of the switch board, and baffles are provided between adjacent tooth grooves. The distance between adjacent tooth grooves is the same as the distance between adjacent discharge ports.

[0008] Further, a horizontal sliding hole is formed in the switch board, and a limit bolt is inserted into the sliding hole. The limit bolt is connected to the side wall of the blanking long groove.

[0009] Further, a switch adjusting mechanism is further included. The switch adjusting mechanism includes an adjusting control board, an operating shaft hole, and an operating rod. The adjusting control board is located at the end of the switch board. A plugging hole is formed in the adjusting control board. The operating shaft hole is located at the end of the blanking long groove. A shaft rod and a plug rod are provided at the end of the operating rod. The shaft rod and the plug rod are parallel to each other. The shaft rod is used for being inserted into the operating shaft hole, and the plug rod is used for being inserted into the plugging hole.

[0010] Further, a conduit is provided at the lower end of each other guide groove at an interval.

[0011] Further, the driving device includes a motor and a chain transmission mechanism.

[0012] Further, a connecting pipe is provided at the lower end of the guide groove, and a rotating sleeve is provided at the end of the connecting pipe. The end of the conduit is connected to the rotating sleeve.

[0013] When the present utility model is in use, crushed stones are first added into the stone bin. The crushed stones come to the upper part of the roller shaft through the blanking long groove, and the rotation of the roller shaft drives the crushed stones to be discharged through the discharge port. For both ends of the roller shaft, the discharged stones fall into the guide groove and enter the rotatable conduit through the guide groove, and finally are discharged from the lower port of the conduit. For the middle part of the roller shaft, since the stones do not pass through the guide groove and the conduit, the stones directly fall. The bent conduit can rotate in direction, thereby controlling the falling position of the stones. In this way, by controlling the positions of the lower ports of multiple conduits at both ends of the roller shaft, the paving width of the stones can be adjusted. At the same time, the stones paved in this paving manner are dense in the middle and sparse on both sides in the paving width direction, meeting the requirements of road surface paving. By adjusting the rotation speed of the roller shaft, the flow rate of the stones can be adjusted, thereby adjusting the paving thickness of the stones. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the structural diagram of the present utility model.

[0015] Figure 2 is Figure 1 the left view of

[0016] Figure 3 is the schematic diagram of the switch adjusting mechanism.

[0017] In the figure: 1, stone bin; 2, long blanking chute; 3, roller shaft; 4, switch plate; 5, material guiding chute; 6, conduit; 7, driving device; 8, connecting pipe; 9, rotating sleeve; 10, adjusting and controlling plate; 11, operating shaft hole; 12, inserting hole; 13, operating rod; 14, shaft rod; 15, inserting rod; 2-1, discharge port; 4-1, baffle; 4-2, tooth groove; 4-3, sliding hole; 4-4, limit bolt. Specific implementation manner

[0018] The specific implementation manner of the present utility model will be described below in conjunction with the accompanying drawings.

[0019] As Figure 1 , Figure 2 shown, the present utility model is a stone spreading device, and its structure mainly includes a stone bin 1, a long blanking chute 2, a roller shaft 3, a material guiding chute 5 and a conduit 6.

[0020] The stone bin 1 is used for storing crushed stones. The long blanking chute 2 is located below the stone bin 1, and the upper end of the long blanking chute 2 is communicated with the bottom of the stone bin 1. The crushed stones in the stone bin 1 will enter the long blanking chute 2 by gravity. The length of the long blanking chute 2 is the same as the width of the stone bin 1.

[0021] The roller shaft 3 is located at the lower port of the long blanking chute 2. The axial direction of the roller shaft 3 is the same as the length direction of the long blanking chute 2. The roller shaft 3 is driven by a driving device 7 to rotate. A discharge port 2-1 is arranged on one side of the lower port of the long blanking chute 2. The lower port of the long blanking chute 2 is in contact with the surface of the roller shaft 3 or has a very small gap. The stones in the middle and lower parts of the long blanking chute 2 are in contact with the surface of the roller shaft 3. The driving device 7 drives the roller shaft 3 to rotate, and the stones are driven to be discharged from the discharge port 2-1 on the moving direction side through the friction force between the surface of the roller shaft 3 and the stones. The discharge speed of the stones can be adjusted by the rotation speed of the roller shaft 3.

[0022] Further, the driving device 7 includes a motor. Sprockets are respectively arranged on the motor rotating shaft and the roller shaft 3, and the two sprockets are connected by a chain.

[0023] A switch plate 4 is arranged on one side of the long blanking chute 2. The switch plate 4 is located on the side of the long blanking chute 2 where the discharge port 2-1 is provided. The opening and closing of the discharge port 2-1 can be controlled by the switch plate 4.

[0024] The discharge ports 2-1 are evenly distributed along the length direction of the long material feeding slot 2, the switch plate 4 contacts the side wall of the long material feeding slot 2, the switch plate 4 and the side wall of the long material feeding slot 2 are slidably connected, a plurality of tooth grooves 4-2 are arranged at the lower end of the switch plate 4, a baffle 4-1 is arranged between two adjacent tooth grooves 4-2, and the spacing between two adjacent tooth grooves 4-2 is consistent with the spacing between two adjacent discharge ports 2-1. When the switch plate 4 moves along the side wall of the long material feeding slot 2, the baffle 4-1 and the discharge port 2-1 overlap or stagger each other, thereby realizing the opening and closing of the discharge port 2-1.

[0025] In order to realize the movement of the switch plate 4, a transverse sliding hole 4-3 is opened on the switch plate 4, and a limiting bolt 4-4 is inserted into the sliding hole 4-3. The limiting bolt 4-4 is connected to the side wall of the feeding slot 2, so that the switch plate 4 can only move horizontally a certain distance along the transverse sliding hole 4-3.

[0026] Furthermore, a gasket is provided on the limiting bolt 4 - 4 , which can prevent the limiting bolt 4 - 4 from being separated from the sliding hole 4 - 3 and can reduce the friction between the limiting bolt 4 - 4 and the switch plate 4 .

[0027] The adjustment of the gravel paving width is achieved through the material guide trough 5 and the guide tube 6.

[0028] Among them, a number of material guide grooves 5 are respectively arranged at both ends of the roller shaft 3, and the material guide groove 5 is located on the same side of the discharge port 2-1. A conduit 6 is rotatably connected to the lower end of each material guide groove 5. The conduit 6 is a curved structure, and the position of the lower end of the conduit 6 can be adjusted by rotation. The farther the lower end of the conduit 6 extends outward, the greater the paving width of the gravel.

[0029] Among them, a plurality of guide grooves 5 located at one end of the roller shaft 3 correspond one by one to a plurality of discharge ports 2 - 1 at the end of the long material discharge trough 2 . After being discharged from the discharge port 2 - 1 , the stones enter the guide groove 5 and are discharged through the lower end of the guide groove 5 .

[0030] In this specific embodiment, a guide tube 6 is provided at the lower end of each guide trough 5. In the parts where the guide troughs 5 are provided at both ends of the material discharge long trough 2, after the stones are discharged from the discharge port 2-1 and enter the corresponding guide troughs 5, half of the stones in the guide troughs 5 directly fall to the ground naturally, and the stones in the other half of the guide troughs 5 enter the guide tube 6, and are guided by the guide tube 6 to the corresponding positions and fall to the ground.

[0031] Among them, the conduit 6 has a certain length, and the innermost conduit 6 can also rotate so that the lower end is located outside the outermost material guide trough 5, so that part of the stone can be guided to a position outside the end of the material guide trough 5. The rotation angle of the conduit 6 can control the paving width of the stone.

[0032] A connecting pipe 8 is provided at the lower end of the material guiding trough 5, a rotating sleeve 9 is provided at the end of the connecting pipe 8, the end of the conduit 6 is connected to the rotating sleeve 9, and the rotation of the conduit 6 and the sealing between the conduit 6 and the connecting pipe 8 can be achieved through the rotating sleeve 9.

[0033] As Figure 3 shown, the utility model further includes a switch adjusting mechanism for adjusting the position of the switch plate 4. The switch adjusting mechanism includes an adjusting control plate 10, an operating shaft hole 11 and an operating rod 13. The adjusting control plate 10 is located at the end of the switch plate 4, a plug hole 12 is formed in the adjusting control plate 10, the operating shaft hole 11 is located at the end of the long blanking groove 2, and a shaft rod 14 and a plug rod 15 are provided at the end of the operating rod 13. The shaft rod 14 and the plug rod 15 are parallel to each other. The shaft rod 14 is used for being inserted into the operating shaft hole 11, and the plug rod 15 is used for being inserted into the plug hole 12. When moving the switch plate 4, insert the plug rod 15 into the plug hole 12, insert the shaft rod 14 into the operating shaft hole 11, and pull the operating rod 13 to make the operating rod 13 rotate around the shaft rod 14, so as to drive the switch to move horizontally through the plug rod 15.

[0034] Among them, the diameters of the plug hole 12 and the operating shaft hole 11 are relatively large, leaving a margin for the movement of the plug rod 15 and the shaft rod 14, so that the positions of the shaft rod 14 and the plug rod 15 can automatically adapt when the operating rod 13 and the switch plate 4 move.

[0035] When the utility model is in use, first add crushed stones into the stone bin 1, adjust the rotation angles of the conduits 6 according to the width of the road surface, so that the adjusted stone paving width is consistent with the road surface width. When carrying out the stone paving operation, move the switch plate 4 through the operating rod 13 to open the discharge port 2-1, and at the same time start the motor to drive the roller shaft 3 to rotate. The stones in the stone bin 1 come to the roller shaft 3 through the long blanking groove 2, and the stones are discharged from the discharge port 2-1 through the rotation of the roller shaft 3. For the middle part of the roller shaft 3, the stones directly fall. For the two ends of the roller shaft 3, the stones first enter the material guiding trough 5, part of the stones directly fall, and the rest of the stones are guided to the corresponding positions through the conduits 6 and then fall, so as to realize the paving of stones on roads with different widths. During the paving process, the flow rate of the stones can be adjusted by adjusting the rotation speed of the roller shaft 3, so as to adjust the paving thickness of the stones.

Claims

1. A gravel paving device, characterized in that: It includes a stone silo, a long material discharge trough, a roller, a material guide trough and a conduit; the upper end of the long material discharge trough is connected with the bottom of the stone silo, the roller is located at the lower end of the long material discharge trough, the axial direction of the roller is consistent with the length direction of the long material discharge trough, the roller is driven to rotate by a driving device, a discharge port is arranged on one side of the lower end of the long material discharge trough, a switch plate is arranged at the discharge port, the switch plate is used to control the opening and closing of the discharge port, a plurality of material guide troughs are respectively arranged at both ends of the roller, the material guide troughs are located on the same side of the discharge port, a conduit is rotatably connected to the lower end of part or all of the material guide troughs, and the conduit is a curved structure.

2. The gravel paving device according to claim 1, characterized in that: The discharge ports are evenly distributed along the length direction of the long material discharge trough, and the plurality of material guide troughs at one end of the roller shaft correspond one to one with the plurality of discharge ports at the end of the long material discharge trough.

3. The gravel paving device according to claim 2, characterized in that: The switch plate is slidably connected to the side wall of the long material discharge slot, a plurality of tooth grooves are arranged at the lower end of the switch plate, a baffle is arranged between two adjacent tooth grooves, and the spacing between two adjacent tooth grooves is consistent with the spacing between two adjacent discharge ports.

4. The gravel paving device according to claim 3 is characterized in that A transverse sliding hole is provided on the switch plate, and a limiting bolt is inserted into the sliding hole, and the limiting bolt is connected to the side wall of the long material feeding groove.

5. The gravel paving device according to claim 3, characterized in that: It also includes a switch adjustment mechanism, which includes an adjustment control plate, an operating shaft hole and an operating rod. The adjustment control plate is located at the end of the switch plate, and a plug hole is opened on the adjustment control plate. The operating shaft hole is located at the end of the long feeding groove, and a shaft rod and an insertion rod are arranged at the end of the operating rod. The shaft rod and the insertion rod are parallel to each other. The shaft rod is used to be inserted into the operating shaft hole, and the insertion rod is used to be inserted into the plug hole.

6. The gravel paving device according to claim 1, characterized in that: A guide tube is arranged at the lower end of each material guide trough.

7. The gravel paving device according to claim 1, characterized in that: The driving device comprises a motor and a chain transmission mechanism.

8. The gravel paving device according to claim 1, characterized in that: A connecting pipe is arranged at the lower end of the material guiding trough, a rotating sleeve is arranged at the end of the connecting pipe, and the end of the conduit is connected to the rotating sleeve.

Images