Material conveying device and method for road construction

Abstract

The invention provides a material conveying device and method for road construction, and relates to the technical field of road construction auxiliary equipment.The material conveying device comprises a belt conveyor, a feeding shell, a discharging frame, two discharging grooves, a material guiding piece and two guiding plates, and the feeding shell is located on one side of the highest end of a conveying belt of the belt conveyor; the discharging frame is located on the side, away from the conveying belt, of the feeding shell. The two discharging grooves are located in the two sides of the bottom of the feeding shell correspondingly and extend downwards in an inclined mode. The material guiding part comprises a material guiding frame, material guiding plates and a rotating part, the material guiding frame and the material guiding plates are rotationally arranged in the feeding shell, the rotating part can drive the material guiding frame to rotate, the material guiding plates are located below the material guiding frame and can be driven by the material guiding frame to rotate, and the two guiding plates are rotationally installed on the two sides of the top of the feeding shell correspondingly; and when the material guide frame rotates, one guide plate can be driven to rotate to an inclined state. Different materials can be conveyed to different positions, the position of the whole device does not need to be frequently changed, and the conveying efficiency is improved.

Description

Technical Field

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

[0002] In road construction, material transportation is a key link, which is directly related to the construction progress, cost and quality. At present, road construction often adopts segmented construction. Due to the limited transportation environment, transportation vehicles cannot reach the designated location. Therefore, when transporting materials such as gravel, sand and bagged cement, it is necessary to use a conveying device to transport the materials to a location that vehicles cannot reach.

[0003] Different types of materials need to be transported to different locations for classification and stacking. Since the conveying device needs to transport over long distances and its own weight is also large, a crane is required to change the direction of the conveying device outlet each time different types of materials are transported. This operation is inconvenient and affects the material transportation efficiency. Summary of the invention

[0004] The object of the present invention is to provide a material conveying device for road construction, which can conveniently convey different materials to different positions without frequently changing the position of the entire device, thereby improving the overall efficiency of material conveying.

[0005] The present invention is implemented through the following technical solutions: A material conveying device for road construction, comprising: A belt conveyor, comprising a frame and a conveyor belt obliquely arranged on the frame; A feed shell, which is arranged on the frame and located on one side of the highest end of the conveyor belt; A discharging rack, wherein a material blocking shell is arranged on the discharging rack, and the material blocking shell is located on a side of the feeding shell away from the conveyor belt; Two discharge troughs, which are respectively arranged on both sides of the bottom of the feed shell and extend obliquely downward; along the horizontal projection direction, the length direction of the discharge trough is perpendicular to the length direction of the conveyor belt; A material guide member, the material guide member comprises a material guide frame, a material guide plate and a rotating member, the middle parts of the material guide frame and the material guide plate are both rotatably arranged in the material feed shell, the rotating member is arranged outside the material feed shell and can drive the material guide frame to rotate, the material guide plate is located below the material guide frame and can rotate under the drive of the material guide frame, and the length of the material guide plate is less than the length of the material feed shell; And, two guide plates, the two guide plates are rotatably arranged on both sides of the top of the feed shell and are located above the guide frame. When the guide frame rotates, the upwardly tilted end of the guide frame can drive one of the guide plates to rotate from a vertical state to an inclined state.

[0006] Furthermore, pressing blocks are provided at the four corners of the material guide plate. When the material guide frame contacts the pressing blocks and drives the material guide plate to rotate to an inclined state, a gap is formed between the material guide frame and the upper surface of the material guide plate.

[0007] Furthermore, support bars are provided in the feed shell and on both sides of the bottom of the guide plate. When the guide frame drives the guide plate to rotate to an inclined state, the support bar on one side fits with the lower surface of the guide plate.

[0008] Furthermore, the feed shell is provided with a discharge port connected to the material blocking shell and a sealing plate for sealing the discharge port, the sealing plate is rotatably arranged in the discharge port, and elastic pressure parts are arranged on both sides of the sealing plate; when the two guide plates are in a vertical state, the elastic pressure parts on both sides can drive the sealing plates to rotate to an inclined state to open the discharge port; when one of the guide plates rotates to an inclined state, the sealing plate is in a vertical state and closes the discharge port.

[0009] Furthermore, the elastic pressure piece includes a torsion spring, and both ends of the blocking plate are provided with a rotating shaft, the torsion spring is sleeved on the rotating shaft, one end of the torsion spring is fixedly connected to the blocking plate, and the other end is provided with an extension rod, and when the guide plate is in a vertical state, it can abut against the extension rod and make the extension rod in a vertical state; when the guide plate is rotated upward, it can be separated from the extension rod and make the extension rod rotate to an inclined state.

[0010] Furthermore, the guide plate is a solid plate, and the blocking plate is a hollow plate.

[0011] Furthermore, the rotating part includes a rotating motor, a worm wheel and a worm, two supporting blocks are arranged on the outside of the feed shell, the worm is rotatably arranged between the two supporting blocks, the rotating motor is arranged on one of the supporting blocks and is used to drive the worm to rotate, a central axis is arranged in the middle of the material guide frame, the worm wheel is coaxially connected to the central axis and meshes with the worm.

[0012] Furthermore, the discharging rack has a plurality of groups of buffer members distributed along its length direction, the buffer members include a mounting rod, a plurality of buffer blocks are arranged on the mounting rod, and a buffer plate is arranged on one side of the buffer block facing the inside of the discharging rack.

[0013] Furthermore, the frame includes a base frame, an inclined frame and vertical legs, the lowest end of the inclined frame is rotatably arranged on the base frame, the vertical legs are arranged at the bottom of the highest end of the inclined frame, and rollers are arranged at the bottom of the vertical legs.

[0014] The present invention also provides a conveying method using the above-mentioned material conveying device for road construction, comprising the following steps: S1. The guide frame is driven to rotate to one side to an inclined state through a rotating member, and the guide plate is driven to rotate to a specified position, so that the guide plate and the side wall of one side of the feed shell form a discharge channel, and the crushed stones are transported to the feed shell through a belt conveyor, and the crushed stones can fall into one of the discharge troughs; S2, driving the guide frame to rotate to the other side to an inclined state through the rotating member, driving the guide plate to rotate to a specified position, so that the guide plate and the side wall of the other side of the feed shell form a discharge channel, and the sand and soil are transported to the feed shell through the belt conveyor, and the sand and soil can fall into another discharge trough; S3, driving the guide rack to rotate to a horizontal state through a rotating member, conveying the bagged cement to the feed shell via a belt conveyor, and the bagged cement can slide out to the discharge rack under the guidance of the guide rack, and fall down to the bottom of the discharge rack; S4. During the construction process, when one of the materials, namely, crushed stone, sand or bagged cement, is used up, the state of the material guide rack is switched according to the required material to facilitate the replenishment of the material.

[0015] The technical solution of the present invention has at least the following advantages and beneficial effects: 1. The present invention arranges a feed shell at the discharge end of the belt conveyor, arranges a discharge rack on the side of the feed shell away from the belt conveyor, arranges discharge troughs on both sides of the bottom of the feed shell, and arranges a material guide member in the feed shell. When conveying different materials, the materials can be made to fall out in different directions by switching the state of the material guide member, thereby facilitating the conveying of different types of materials to different positions for classified stacking.

[0016] 2. The present invention provides a discharge port connected with the retaining shell and a sealing plate for sealing the discharge port on the feed shell; when the two guide plates are in a vertical state, the elastic pressure members on both sides can drive the sealing plates to rotate to an inclined state to open the discharge port; when one of the guide plates rotates to an inclined state, the sealing plate is in a vertical state and closes the discharge port, so that the discharge port is in an open state during the transportation of bagged cement, and is in a closed state during the transportation of sand or gravel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the belt conveyor of the present invention; Figure 3 It is a schematic diagram of the structure of the feed shell, the discharge rack and the discharge chute of the present invention; Figure 4 It is a structural schematic diagram of the material guide member in the material feed shell when the material guide frame of the present invention is in a horizontal state; Figure 5It is a structural schematic diagram of the material guide member, the guide plate and the blocking plate when the material guide frame of the present invention is in a horizontal state; Figure 6 for Figure 5 A magnified view of part A; Figure 7 It is a structural schematic diagram of the material guide member in the material feed shell when the material guide frame of the present invention is in a tilted state; Figure 8 It is a structural schematic diagram of the material guide member, the guide plate and the blocking plate when the material guide frame of the present invention is in a tilted state; Fig. 9 for Figure 8 A magnified view of part B; Figure markings: 1-belt conveyor, 11-frame, 111-base frame, 112-inclined frame, 113-vertical support leg, 1131-roller, 12-transmission belt, 2-feed shell, 21-support bar, 22-discharge port, 23-sealing plate, 231-rotating shaft, 24-elastic pressure piece, 241-torsion spring, 242-extension rod, 3-discharge rack, 31-blocking shell, 32-buffer, 321-mounting rod, 322-buffer block, 323-buffer plate, 4-discharge trough, 5-material guide, 51-material guide rack, 511-center axis, 52-material guide plate, 521-pressure block, 53-rotating piece, 531-rotating motor, 532-worm gear, 533-worm, 534-support block, 6-guide plate. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Example The following reference Figure 1-Figure 9 As shown, combined with a specific embodiment, this embodiment provides a material conveying device for road construction, referring to Figure 1As shown, it includes a belt conveyor 1, a feed shell 2, a discharge rack 3, two discharge troughs 4, a material guide 5 and two guide plates 6. The belt conveyor 1 includes a frame 11 and a conveyor belt 12 obliquely arranged on the frame 11. The feed shell 2 is welded to the frame 11 and is located on the side of the highest end of the conveyor belt 12. The discharge rack 3 is provided with a material blocking shell 31, and the material blocking shell 31 is located on the side of the feed shell 2 away from the conveyor belt 12. The two discharge troughs 4 are respectively arranged on both sides of the bottom of the feed shell 2 and extend obliquely downward. Along the horizontal projection direction, the length direction of the discharge trough 4 is perpendicular to the length direction of the conveyor belt 12; the material guide 5 is used to guide the output direction of the material, and the two guide plates 6 are used to introduce the material into different positions in the feed shell 2. When conveying bagged cement, the guide member 5 guides the bagged cement from the side of the feed shell 2 away from the belt conveyor 1 to the discharging rack 3, so that the bagged cement falls out from the bottom of the discharging rack 3; when conveying gravel, the guide member 5 guides the gravel to one side of the feed shell 2, and makes the gravel fall out from one side of the bottom of the feed shell 2 to one of the discharging troughs 4, that is, the gravel can be piled on one side; when conveying sand and soil, the guide member 5 guides the sand and soil to the other side of the feed shell 2, and makes the sand and soil fall out from the other side of the bottom of the feed shell 2 to the other discharging trough 4, that is, the sand and soil can be piled on the other side opposite to the position of the gravel, so that different types of materials can be conveyed to different positions for classified stacking.

[0021] Reference Figure 2 As shown, the frame 11 of the belt conveyor 1 includes a base frame 111, an inclined frame 112 and a vertical leg 113. The lowest end of the inclined frame 112 is rotatably mounted on the base frame 111, and the vertical leg 113 is mounted at the bottom of the highest end of the inclined frame 112. A roller 1131 is provided at the bottom of the vertical leg 113. By mounting the inclined frame 112 on the base frame 111 in a rotatable connection and configuring the roller 1131 on the vertical leg 113, after the frame 11 is hoisted to a specified position by a crane, when the position where the material falls out needs to be changed over a short distance, the staff can fine-tune the position of the end of the inclined frame 112 by a joint force of multiple people, without using a crane every time the position is adjusted.

[0022] Reference Figure 1 , Figure 3 As shown, there are multiple groups of buffer members 32 distributed along the length direction of the discharging rack 3, and the buffer members 32 include a mounting rod 321, and multiple buffer blocks 322 are arranged on the mounting rod 321, and each buffer block 322 is provided with a buffer plate 323 on the side facing the inside of the discharging rack 3. When the bagged cement reaches the discharging rack 3 and falls, the multiple groups of buffer members 32 can buffer the bagged cement to reduce the falling speed of the bagged cement, and prevent the cement bag from falling directly on the ground and breaking, resulting in cement leakage.

[0023] Reference Figure 4, Figure 5 As shown, the material guide member 5 includes a material guide frame 51, a material guide plate 52 and a rotating member 53. The middle parts of the material guide frame 51 and the material guide plate 52 are both rotatably arranged in the feed shell 2. The rotating member 53 is arranged outside the feed shell 2 and can drive the material guide frame 51 to rotate. The material guide plate 52 is located below the material guide frame 51 and can rotate driven by the material guide frame 51. The length of the material guide plate 52 is less than the length of the feed shell 2. The two guide plates 6 are respectively rotatably arranged on both sides of the top of the feed shell 2 and are located above the material guide frame 51. When the material guide frame 51 rotates, the upwardly tilted end of the material guide frame 51 can drive one of the guide plates 6 to rotate from a vertical state to an inclined state.

[0024] Reference Figure 4 As shown, when the bagged cement is transported, the rotating member 53 keeps the guide rack 51 in a horizontal state, and the bagged cement falling on the guide rack 51 will not enter the interior of the feed shell 2, but will pass through the guide rack 51 under the action of inertia and slide out to the discharge rack 3, and fall to the bottom of the discharge rack 3 along the height direction of the discharge rack 3; refer to Figure 7 As shown, when conveying gravel or sand, the rotating member 53 drives the guide frame 51 to rotate to one side, and one end of the guide frame 51 presses the guide plate 52 downward, so that the guide plate 52 and the side wall of one side of the feed shell 2 form a discharge channel, thereby conveying the gravel or sand to the discharge trough 4 at the designated position. At the same time, the raised end of the guide frame 51 drives one of the guide plates 6 to rotate from a vertical state to an inclined state. The guide plate 6 can guide the material, thereby ensuring that all the material flows to the designated discharge channel and does not fall out from the gap between the raised end of the guide plate 52 and the side wall of the other side of the feed shell 2.

[0025] Reference Figure 5 As shown, the rotating member 53 includes a rotating motor 531, a worm wheel 532 and a worm 533. Two support blocks 534 are arranged outside the feed shell 2. The worm 533 is rotatably arranged between the two support blocks 534. The rotating motor 531 is arranged on one of the support blocks 534 and is used to drive the worm 533 to rotate. A central shaft 511 is arranged in the middle of the guide frame 51. The worm wheel 532 is coaxially connected to the central shaft 511 and meshes with the worm 533. The rotating motor 531 is started to drive the worm 533 to rotate. The worm wheel 532 rotates synchronously under the meshing action of the worm 533, thereby driving the guide frame 51 to rotate. When the guide frame 51 rotates to a specified state, the worm 533 has a locking effect on the worm wheel 532, so the guide frame 51 has a high stability.

[0026] Reference Figure 5 , Figure 8As shown, support bars 21 are provided on both sides of the bottom of the guide plate 52 in the feed shell 2. When the guide frame 51 drives the guide plate 52 to rotate to a tilted state, the support bar 21 on one side fits with the lower surface of the guide plate 52, supporting the guide plate 52 to maintain the position of the guide plate 52. The four corners of the guide plate 52 are welded with pressing blocks 521. When the guide frame 51 abuts against the pressing blocks 521 and drives the guide plate 52 to rotate to a tilted state, there is a gap between the upper surfaces of the guide frame 51 and the guide plate 52, so that the material can fall smoothly into the discharge channel without accumulating between the guide frame 51 and the guide plate 52, thereby avoiding blockage of the material during the conveying process.

[0027] Reference Figure 4 , Figure 5 As shown, the feed shell 2 is provided with a discharge port 22 connected to the blocking shell 31 and a blocking plate 23 for blocking the discharge port 22. The blocking plate 23 is rotatably installed in the discharge port 22, and elastic pressing members 24 are provided on both sides of the blocking plate 23; when the two guide plates 6 are in a vertical state, the elastic pressing members 24 on both sides can drive the blocking plate 23 to rotate to an inclined state to open the discharge port 22; refer to Figure 7 , Figure 8 As shown, when one of the guide plates 6 rotates to an inclined state, the blocking plate 23 is in a vertical state and closes the discharge port 22. When conveying bagged cement, the guide frame 51 is in a horizontal state, at which time the two guide plates 6 are not affected by external forces and are both in a state tending to be vertical. At this time, the two sets of elastic pressing members 24 simultaneously apply forces to the blocking plate 23 to keep the blocking plate 23 in an inclined state, and the discharge port 22 is in an open state, and the bagged cement can fall out of the feed shell 2 and enter the discharge frame 3; when conveying gravel or sand, the guide frame 51 tilts to one side, and one of the guide plates 6 is in an inclined state due to external forces. At this time, only the elastic pressing member 24 on the other side applies forces to the blocking plate 23, which is not enough to open the blocking plate 23, so the blocking plate 23 is in a vertical state and closes the discharge port 22, and the material will not fall out of the feed shell 2 from the discharge port 22, but will all enter the feed shell 2 and flow to the discharge channel in the specified direction.

[0028] Reference Figure 5 , Figure 6 , Figure 8 , Fig. 9As shown, the elastic pressure piece 24 includes a torsion spring 241, and both ends of the blocking plate 23 are provided with a rotating shaft 231, the torsion spring 241 is sleeved on the rotating shaft 231, one end of the torsion spring 241 is fixedly connected to the blocking plate 23, and the other end is provided with an extension rod 242. When the guide plate 6 is in a vertical state, it can abut against the extension rod 242 and make the extension rod 242 in a vertical state; when the guide plate 6 rotates upward, it can separate from the extension rod 242 and make the extension rod 242 rotate to an inclined state. When both guide plates 6 are in a vertical state, the side of the guide plate 6 applies a force to the extension rod 242, and the two torsion springs 241 apply force at the same time to drive the blocking plate 23 to rotate; when one of the guide plates 6 rotates and separates from the extension rod 242, the extension rod 242 abutting against this guide plate 6 is no longer subjected to the force and will rotate freely. At this time, the torsion spring 241 on one side is in a failed state, and the torsion spring 241 on the other side is not enough to maintain the inclined state of the blocking plate 23. The blocking plate 23 can rotate to a vertical state under the action of its own gravity and block the discharge port 22.

[0029] In this embodiment, the guide plate 6 and the sealing plate 23 are both steel plates, the guide plate 6 is a solid plate, and the sealing plate 23 is a hollow plate with a hollow interior. The weight of the guide plate 6 is greater than the weight of the sealing plate 23. Therefore, when the guide plate 6 rotates under the action of its own gravity, it can overcome the resistance of the sealing plate 23 and rotate to a vertical state. When the two guide plates 6 are in a vertical state, they can simultaneously apply a force to the extension rod 242 at the end of the torsion spring 241. The two torsion springs 241 simultaneously apply a force to the sealing plate 23 to rotate the sealing plate 23 to an inclined state, so as to open the discharge port 22.

[0030] This embodiment also provides a conveying method using the above-mentioned road construction material conveying device, comprising the following steps: S1, driving the guide frame 51 to rotate to one side to an inclined state through the rotating member 53, driving the guide plate 52 to rotate to a specified position, so that the guide plate 52 and the side wall of one side of the feed shell 2 form a discharge channel, and the crushed stones are transported to the feed shell 2 through the belt conveyor 1, and the crushed stones can fall into one of the discharge troughs 4; S2, driving the guide frame 51 to rotate to the other side to an inclined state through the rotating member 53, driving the guide plate 52 to rotate to a specified position, so that the guide plate 52 and the side wall of the other side of the feed shell 2 form a discharge channel, and the sand and soil are transported to the feed shell 2 through the belt conveyor 1, and the sand and soil can fall into another discharge trough 4; S3, driving the guide frame 51 to rotate to a horizontal state through the rotating member 53, and conveying the bagged cement to the feed shell 2 through the belt conveyor 1, and the bagged cement can slide out to the discharge frame 3 under the guidance of the guide frame 51, and fall down to the bottom of the discharge frame 3; S4. During the construction process, when one of the materials of crushed stone, sand or bagged cement is used up, the state of the material guide rack 51 is switched according to the required material to facilitate the replenishment of the material.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A material conveying device for road construction, characterized in that: include: A belt conveyor (1), comprising a frame (11) and a conveyor belt (12) obliquely arranged on the frame (11); A feed shell (2), the feed shell (2) being arranged on the frame (11) and located on a side of the highest end of the conveyor belt (12); A material discharging frame (3), wherein a material blocking shell (31) is provided on the material discharging frame (3), and the material blocking shell (31) is located on a side of the material feeding shell (2) away from the conveyor belt (12); Two discharge troughs (4), the two discharge troughs (4) are respectively arranged on both sides of the bottom of the feed shell (2) and extend obliquely downward; along the horizontal projection direction, the length direction of the discharge trough (4) is perpendicular to the length direction of the conveyor belt (12); A material guide member (5), the material guide member (5) comprising a material guide frame (51), a material guide plate (52) and a rotating member (53), the middle parts of the material guide frame (51) and the material guide plate (52) are both rotatably arranged in the material feed shell (2), the rotating member (53) is arranged outside the material feed shell (2) and can drive the material guide frame (51) to rotate, the material guide plate (52) is located below the material guide frame (51) and can rotate under the drive of the material guide frame (51), and the length of the material guide plate (52) is less than the length of the material feed shell (2); And, two guide plates (6), the two guide plates (6) are rotatably arranged on both sides of the top of the feed shell (2) and are located above the guide frame (51), when the guide frame (51) rotates, the upwardly tilted end of the guide frame (51) can drive one of the guide plates (6) to rotate from a vertical state to an inclined state.

2. The material conveying device for road construction according to claim 1, characterized in that: The four corners of the guide plate (52) are each provided with a pressing block (521); when the guide frame (51) contacts the pressing block (521) and drives the guide plate (52) to rotate to an inclined state, a gap exists between the upper surfaces of the guide frame (51) and the guide plate (52).

3. The material conveying device for road construction according to claim 1, characterized in that: Support bars (21) are provided in the feed shell (2) and on both sides of the bottom of the guide plate (52); when the guide frame (51) drives the guide plate (52) to rotate to an inclined state, the support bar (21) on one side fits with the lower surface of the guide plate (52).

4. The material conveying device for road construction according to claim 1, characterized in that: The feed shell (2) is provided with a discharge port (22) connected to the blocking shell (31) and a sealing plate (23) for sealing the discharge port (22); the sealing plate (23) is rotatably arranged in the discharge port (22), and elastic pressure members (24) are arranged on both sides of the sealing plate (23); when the two guide plates (6) are both in a vertical state, the elastic pressure members (24) on both sides can drive the sealing plates (23) to rotate to an inclined state to open the discharge port (22); when one of the guide plates (6) is rotated to an inclined state, the sealing plate (23) is in a vertical state and closes the discharge port (22).

5. The material conveying device for road construction according to claim 4, characterized in that: The elastic pressure piece (24) comprises a torsion spring (241), and both ends of the blocking plate (23) are provided with a rotating shaft (231). The torsion spring (241) is sleeved on the rotating shaft (231), and one end of the torsion spring (241) is fixedly connected to the blocking plate (23), and the other end is provided with an extension rod (242). When the guide plate (6) is in a state tending to be vertical, it can abut against the extension rod (242) and make the extension rod (242) in a state tending to be vertical; when the guide plate (6) is rotated upward, it can separate from the extension rod (242) and make the extension rod (242) rotate to an inclined state.

6. The material conveying device for road construction according to claim 5, characterized in that: The guide plate (6) is a solid plate, and the blocking plate (23) is a hollow plate.

7. The material conveying device for road construction according to claim 1, characterized in that: The rotating member (53) comprises a rotating motor (531), a worm wheel (532) and a worm (533); two supporting blocks (534) are arranged outside the feed shell (2); the worm (533) is rotatably arranged between the two supporting blocks (534); the rotating motor (531) is arranged on one of the supporting blocks (534) and is used to drive the worm (533) to rotate; a central shaft (511) is arranged in the middle of the guide frame (51); the worm wheel (532) is coaxially connected to the central shaft (511) and meshes with the worm (533).

8. The material conveying device for road construction according to claim 1, characterized in that: The discharging rack (3) has a plurality of groups of buffer components (32) distributed along its length direction, the buffer components (32) comprising a mounting rod (321), a plurality of buffer blocks (322) being arranged on the mounting rod (321), and a buffer plate (323) being arranged on one side of the buffer block (322) facing the inside of the discharging rack (3).

9. The material conveying device for road construction according to claim 1, characterized in that: The frame (11) comprises a base frame (111), an inclined frame (112) and a vertical support leg (113); the lowest end of the inclined frame (112) is rotatably arranged on the base frame (111); the vertical support leg (113) is arranged at the bottom of the highest end of the inclined frame (112); and a roller (1131) is arranged at the bottom of the vertical support leg (113).

10. A method for conveying materials using the road construction material conveying device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. The guide frame (51) is driven to rotate to one side to an inclined state by a rotating member (53), and the guide plate (52) is driven to rotate to a specified position, so that the guide plate (52) and the side wall of one side of the feed shell (2) form a discharge channel, and the crushed stones are transported to the feed shell (2) via the belt conveyor (1), and the crushed stones can fall into one of the discharge troughs (4); S2, driving the guide frame (51) to rotate to the other side to an inclined state through the rotating member (53), driving the guide plate (52) to rotate to a specified position, so that the guide plate (52) and the side wall of the other side of the feed shell (2) form a discharge channel, and the sand and soil are transported to the feed shell (2) through the belt conveyor (1), and the sand and soil can fall into another discharge trough (4); S3, driving the guide frame (51) to rotate to a horizontal state through the rotating member (53), and conveying the bagged cement to the feed shell (2) via the belt conveyor (1), and the bagged cement can slide out to the discharge frame (3) under the guidance of the guide frame (51), and fall downward to the bottom of the discharge frame (3); S4. During the construction process, when one of the materials, namely, the crushed stone, sand or bagged cement, is used up, the state of the material guide rack (51) is switched according to the required material so as to replenish the material.

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