Straight rib feeding and conveying mechanism

Abstract

The invention discloses a straight rib feeding and conveying mechanism, and relates to the technical field of tunnel construction. The feeding assemblies are arranged on the two sides of the trolley; the material receiving assembly comprises a plurality of material receiving and conveying devices which are sequentially arranged at intervals in the axial direction of the tunnel, and each material receiving and conveying device comprises an upper arc-shaped conveying chain and a lower arc-shaped conveying chain which are distributed up and down; the feeding assembly is located between the upper arc-shaped conveying chain and the lower arc-shaped conveying chain. A single straight rib output by the feeding assembly is located in a hooking path of a material receiving hook in the upper arc-shaped conveying chain and conveyed upwards along the outer side of the upper arc-shaped conveying chain. A single straight rib output by the feeding assembly can fall into the lower arc-shaped conveying chain connecting material hook and is conveyed downwards along the outer side of the lower arc-shaped conveying chain. By the adoption of the scheme, conveying can be achieved through the trolley, a plurality of straight ribs can be sequentially arranged in the side wall direction of the tunnel through the arc-shaped conveying chain, rapid construction is facilitated, and the construction efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction, and in particular to a straight reinforcement feeding and transportation mechanism. Background Art

[0002] In tunnel construction, there is a large demand for straight reinforcement, and the transportation of straight reinforcement has always been a major problem restricting construction progress and quality.

[0003] For tunnel construction, steel bars are often transported into the tunnel by manpower or transported through internal storage on trolleys. However, they still need to be taken out manually and constructed on the side walls of the tunnel. This wastes human resources, increases construction intensity, and is extremely inefficient, resulting in untimely material supply to the working face, which directly affects the progress of on-site construction. Summary of the Invention

[0004] The present invention aims to solve the deficiencies of the prior art and to provide a straight reinforcement loading and transportation mechanism. By adopting this scheme, the straight reinforcement can be transported by a trolley, and the arc-shaped conveyor chain can arrange several straight reinforcements in sequence in the direction of the tunnel side wall, which facilitates rapid construction and improves construction efficiency.

[0005] The present invention is achieved through the following technical solutions: A straight reinforcement feeding and transporting mechanism, comprising: Trolley; A feeding assembly is provided on both sides of the trolley, and the feeding assembly sequentially and spacedly conveys single straight bars toward the side wall of the tunnel; The material receiving assembly includes a plurality of material receiving conveying devices arranged in sequence and spaced apart along the axial direction of the tunnel, the material receiving conveying devices including an upper arc-shaped conveying chain and a lower arc-shaped conveying chain distributed above and below, the arc-shaped length directions of the upper arc-shaped conveying chain and the lower arc-shaped conveying chain are both conveying directions, and are arranged along the circumferential direction of the tunnel, and a plurality of material receiving hooks are distributed in sequence and spaced apart along the arc-shaped length directions of the upper arc-shaped conveying chain and the lower arc-shaped conveying chain; the material feeding assembly is located between the upper arc-shaped conveying chain and the lower arc-shaped conveying chain; The single straight reinforcement output by the loading assembly is located within the hooking path of the material receiving hook in the upper arc-shaped conveyor chain and is transported upward along the outer side of the upper arc-shaped conveyor chain; and the single straight reinforcement output by the loading assembly can fall into the material receiving hook in the lower arc-shaped conveyor chain and be transported downward along the outer side of the lower arc-shaped conveyor chain.

[0006] Compared with the existing technology, which has the problem of high intensity and extremely low efficiency in manual transportation, the present invention provides a straight reinforcement loading and transportation mechanism. With this solution, the straight reinforcement can be transported by a trolley, and the arc-shaped conveyor chain can arrange several straight reinforcements in sequence in the direction of the tunnel side wall, which is convenient for rapid construction and improves construction efficiency. The specific solution includes a trolley that can travel in the tunnel; a loading assembly and a receiving assembly are provided on both sides of the trolley; a storage box is provided in the middle of the trolley, and several straight reinforcements can be transported and stored in the storage box from the outside; when the trolley runs to the designated position, several straight reinforcements can be placed on the loading assembly manually for single-piece transportation, or an automatic opening and closing door can be opened on the storage box to realize automatic material discharge. This is an existing conventional technical means and will not be described here. The material receiving assembly includes several material receiving and conveying devices, which include an upper arc-shaped conveying chain and a lower arc-shaped conveying chain, and the curvature of both are adapted to the circumferential direction of the tunnel; when it is necessary to construct straight reinforcement above the side wall of the tunnel, the loading assembly conveys the straight reinforcement to its own outlet and starts the upper arc-shaped conveying chain. At this time, the position of the straight reinforcement on the loading assembly is just located on the groove movement path of the material receiving hook on the upper arc-shaped conveying chain; then the material receiving hooks on at least two upper arc-shaped conveying chains respectively hook the straight reinforcement, thereby transferring the straight reinforcement to the upper arc-shaped conveying chain, and conveying it upward in sequence along the outer side of the upper arc-shaped conveying chain, and arranging several straight reinforcements in sequence at intervals. After reaching the required number, the conveying is stopped and the straight reinforcement is constructed. When reinforcement is required beneath the tunnel sidewall, the loading assembly conveys the reinforcement to its own exit and activates the lower arc conveyor chain. As the reinforcement falls from the loading assembly's exit, it lands neatly in the grooves of the hooks on the lower arc conveyor chains. This transfers the reinforcement to the lower arc conveyor chains, where it is sequentially conveyed downward along the outer sides of the lower arc conveyor chains, spacing the reinforcements in order. Once the required number of reinforcements is reached, the conveyor stops and the reinforcement is constructed. To prevent interference between the upper and lower arc conveyor chains, a telescopic device can be provided to control their separation. Alternatively, sensors can be used to control the movement of the upper arc conveyor chain, positioning the two bottom hooks on either side, thus leaving a gap for the reinforcement to pass through. In this scheme, the upper and lower arc conveyor chains convey in opposite directions, but the hooks face the same direction. For example, when positioned on the outer sides, the hooks' grooves face upward. Furthermore, the material collection process can be manually observed or monitored by sensors such as position sensors.

[0007] Further optimized, as a specific structure of a curved conveyor chain, the upper curved conveyor chain and the lower curved conveyor chain both include a curved base plate, and the circumference of the curved base plate is rotatably connected to the conveyor chain; The curved base is circumferentially mounted with several rotating teeth that transmit power to the conveyor chain. A drive motor is also mounted on the base to drive each of the rotating teeth. In this embodiment, rotating teeth are located at both ends of the curved base. Several mounting plates extend from the inner side of the curved base, each equipped with rotating teeth. This allows the conveyor chain to sequentially engage the rotating teeth and, driven by a drive motor (not shown), rotate the conveyor chain. A material receiving hook is connected to the side wall of the conveyor chain and extends outward.

[0008] Further optimization, in order to facilitate the construction of straight reinforcement close to the tunnel side wall, several of the curved base plates are connected to the trolley via a telescopic motor; the telescopic motor is used to drive the curved base plates to extend and retract toward the tunnel side wall to move away from or closer to the trolley; The output end of the telescopic motor is equipped with two clamping plates, which clamp onto either side of the curved base plate. In this embodiment, the telescopic motor preferably extends horizontally, with its output end clamped onto either side of the curved base plate via the two clamping plates, creating a gap between the two clamping plates to clear the conveyor chains. The telescopic motor can drive the upper and lower curved conveyor chains closer to the tunnel sidewalls to facilitate the construction of straight reinforcement. The telescopic motor can also be used to drive the upper curved conveyor chain to clear the lower curved conveyor chain during material connection.

[0009] Further optimization, in order to adjust the angle of the arc conveyor chain to adapt to the straight reinforcement construction position, the arc base plate is connected to two telescopic motors that extend and retract in the same direction. The two telescopic motors are distributed up and down, and the output ends are hinged to the arc base plate; The sidewall of the curved substrate also includes a first elongated through-hole, extending along its length. The output end of a telescopic motor, remote from the loading assembly, is hingedly connected to the first elongated through-hole and can slide along its length. In this solution, two telescopic motors are used. Initially, the two motors extend synchronously. When reaching a specified position, the inner telescopic motor stops, while the outer motor continues to extend, driving the curved conveyor chain to rotate and achieve angle adjustment.

[0010] Further optimization is made, in order to sequentially convey the straight bars and provide a hooking position for the material receiving hook, the loading assembly includes a plurality of horizontal conveyor chains sequentially arranged along the axial direction of the tunnel, and the conveying direction of the horizontal conveyor chains is toward the side wall of the tunnel; the straight bars can be placed across the plurality of horizontal conveyor chains; The horizontal conveyor chain is equipped with a number of protruding teeth along its length, with adjacent protruding teeth used to clamp the straight bars. In this solution, several horizontal conveyor chains are spaced apart, and the straight bars can be placed longitudinally on at least two of the horizontal conveyor chains to achieve stable conveyance. The horizontal conveyor chains are equipped with several protruding teeth in a T-shape, with the two ends of their bottom edges connected to the chain's connecting pins and the other ends extending outward from the chain. This allows the straight bars to be placed between two adjacent chains. When the straight bars reach the exit, the upper curved conveyor chain hooks the straight bars at one side of the horizontal conveyor chain.

[0011] Further optimized, in order to sequentially convey the straight bars onto the horizontal conveyor chain, the loading assembly further comprises a driving unit and a loading platform for conveying the straight bars to the loading assembly, the loading platform being provided with a plurality of stepped loading assemblies sequentially spaced along the axial direction of the tunnel, the stepped loading assembly comprising a first stepped plate fixed to the loading platform and a second stepped plate slidably connected to the loading platform; The first and second step plates face each other, each with corresponding steps on the same side. Each step surface is tilted downward on the end facing the horizontal conveyor chain. Each step surface is only long enough to accommodate a single straight rib. The drive unit is used to drive the second step plate upward to sequentially lift and convey the straight ribs on the first step plate. In this solution, the lowest sides of the first and second step plates are longer to accommodate several straight ribs. The drive unit (not shown) then drives the second step plate upward on the loading platform, gradually lifting the straight ribs on the first step plate upward, ultimately sliding down from the top onto the horizontal conveyor chain.

[0012] Further optimized, as a lifting drive mode of the second step plate, the first step plate has a second long through hole in the middle; the driving unit includes a lifting shaft, which sequentially passes through the second long through holes on the first step plates and passes through the second step plates; The drive unit is configured to drive the lifting shaft upward and downward along the length of the second elongated through-hole, and to sequentially lift and transport the straight ribs on the steps of the first step plate upward via the second step plate. In this embodiment, a lifting cylinder (not shown) can be employed to drive the lifting shaft upward and downward. The lifting shaft can move within the second elongated through-hole of the first step plate to limit its position and drive the second step plate upward and downward.

[0013] Further optimized, in order to guide the straight reinforcement, the feeding assembly further includes a plurality of sliding platforms arranged in sequence along the axial direction of the tunnel, and the sliding platforms are located between the feeding platform and the horizontal conveyor chain; The sliding platform includes an inclined section and a horizontal section. The upper end of the inclined section is used to receive the straight bars output from the upper end of the first step plate. One end of the horizontal section is connected to the lower end of the inclined section, and the other end of the horizontal section is located on the side of the horizontal conveyor chain and is used to transport the straight bars to the horizontal conveyor chain. In this solution, when the straight bars reach the top of the first step plate, they can freely roll down the inclined section onto the horizontal section due to their own gravitational potential energy. The length of the horizontal section can be precisely controlled, and while providing speed buffering, the straight bars can move to the end of the horizontal section. Since the end of the horizontal conveyor chain is located on the side of the horizontal section, the straight bars are located in the movement path of the convex teeth of the horizontal conveyor chain, thereby wedging the straight bars between the two convex teeth and achieving transfer.

[0014] Further optimization is required. To ensure that both ends of the straight reinforcement are located at the ends of the horizontal section and to prevent them from moving out of position, the landslide platform is also provided with a pushing assembly. The pushing assembly includes a pushing cylinder and a bending plate. The pushing cylinder is located below the horizontal section and connected to the bending plate. The pushing cylinder is used to drive the bending plate to move in the length direction of the horizontal section. The horizontal section has a third long through hole along its length, and the upper end of the bending plate can extend from the bottom to the upper end of the third long through hole. In this solution, when the straight reinforcement moves to the end of the horizontal section, the pushing cylinder can be driven to extend, causing the extended upper end of the bending plate to move along the horizontal section and push the straight reinforcement to the end, so that the straight reinforcement as a whole does not deviate, facilitating the synchronous grasping of several horizontal conveyor chains. Several sensors can be provided for monitoring.

[0015] Further optimization, in order to avoid the free-falling straight ribs, the output end of the pushing cylinder is provided with a mounting head, the bending plate is rotatably arranged inside the mounting head, and the outer side of the mounting head is also rotatably connected to a large gear that rotates synchronously with the bending plate; The mounting head is also equipped with a rotating motor and a small gear rotatably connected thereto. The motor drives the small gear, which meshes with the large gear. In this embodiment, when the straight rib is freely falling, the motor drives the small gear, which in turn rotates the large gear, which in turn rotates the bending plate, causing the protruding portion of the bending plate to rotate below the horizontal section. Once the straight rib has passed, the motor flips, causing the upper end of the bending plate to extend upward. Furthermore, the protruding portion of the bending plate has a toothed surface to increase friction.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects: The present invention provides a straight reinforcement loading and transportation mechanism. By adopting this solution, the straight reinforcement can be transported by a trolley, and the arc-shaped conveyor chain can arrange a plurality of straight reinforcements in sequence in the direction of the tunnel side wall, thereby facilitating rapid construction and improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the examples. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be considered as limiting the scope. A person of ordinary skill in the art can also derive other relevant drawings based on these drawings without inventive effort. In the drawings: Figure 1 A schematic structural diagram of the straight reinforcement feeding and transporting mechanism provided by the present invention; Figure 2 A front view of the straight reinforcement feeding and transporting mechanism provided by the present invention; Figure 3 A partial schematic diagram of the straight reinforcement feeding and transporting mechanism provided by the present invention; Figure 4 The present invention provides Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic structural diagram of the upper arc-shaped conveyor chain provided by the present invention; Figure 6 This is an axial schematic diagram of the loading assembly provided by the present invention; Figure 7 The present invention provides Figure 6 Enlarged view of point B in the middle; Figure 8 Another axial schematic diagram of the loading assembly provided by the present invention; Figure 9 A side view of the loading assembly provided by the present invention; Figure 10 This is a structural diagram of the push component provided by the present invention.

[0018] Markings and corresponding parts names in the accompanying drawings: 1-trolley, 2-loading assembly, 201-horizontal conveyor chain, 202-convex teeth, 203-loading platform, 204-step loading assembly, 2041-first step plate, 2042-second step plate, 2043-second long through hole, 205-lifting shaft, 206-ramp section, 207-horizontal section, 208-pushing cylinder, 209-bending plate, 210-third long through hole, 211-large gear, 212-small gear, 213-rotating motor, 214-slider, 3-material receiving assembly, 301-upper arc conveyor chain, 302-lower arc conveyor chain, 303-material receiving hook, 304-arc base plate, 305-telescopic motor, 306-first long through hole, 307-convex chain. DETAILED DESCRIPTION

[0019] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with examples and drawings. The exemplary embodiments of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0020] Example 1: This example 1 provides a straight reinforcement feeding and transporting mechanism, such as Figures 1-4 As shown, including: Trolley 1; A feeding assembly 2 is provided on both sides of the trolley 1, and the feeding assembly 2 sequentially and spacedly conveys single straight bars toward the side wall of the tunnel; The material receiving assembly 3 includes a plurality of material receiving and conveying devices arranged in sequence and spaced apart along the axial direction of the tunnel. The material receiving and conveying devices include an upper arc-shaped conveying chain 301 and a lower arc-shaped conveying chain 302 distributed above and below. The arc-shaped length directions of the upper arc-shaped conveying chain 301 and the lower arc-shaped conveying chain 302 are both conveying directions, and are arranged along the circumferential direction of the tunnel. A plurality of material receiving hooks 303 are distributed in sequence and spaced apart along the arc-shaped length directions of the upper arc-shaped conveying chain 301 and the lower arc-shaped conveying chain 302; the material loading assembly 2 is located between the upper arc-shaped conveying chain 301 and the lower arc-shaped conveying chain 302; The single straight reinforcement output by the loading component 2 is located in the hooking path of the material receiving hook 303 in the upper arc-shaped conveyor chain 301, and is transported upward along the outer side of the upper arc-shaped conveyor chain 301; and the single straight reinforcement output by the loading component 2 can fall into the material receiving hook 303 of the lower arc-shaped conveyor chain 302, and be transported downward along the outer side of the lower arc-shaped conveyor chain 302.

[0021] Compared with the existing technology, which has the problem of high intensity and extremely low efficiency in manual transportation, the present invention provides a straight reinforcement loading and transportation mechanism. With this solution, the reinforcement can be transported through the trolley 1, and the arc-shaped conveyor chain can arrange several straight reinforcements in sequence in the direction of the tunnel side wall, which is convenient for rapid construction and improves construction efficiency. The specific solution includes a trolley 1 that can travel in the tunnel; a loading assembly 2 and a receiving assembly 3 are provided on both sides of the trolley 1; a storage box is provided in the middle of the trolley 1, and several straight reinforcements can be transported and stored in the storage box from the outside; when the trolley 1 runs to the designated position, several straight reinforcements can be placed on the loading assembly 2 manually for single-piece transportation, or an automatic opening and closing door can be opened on the storage box to realize automatic material discharge. This is an existing conventional technical means and will not be described here. The material receiving assembly 3 includes several material receiving and conveying devices, which include an upper arc conveying chain 301 and a lower arc conveying chain 302, the curvature of both of which are adapted to the circumferential direction of the tunnel; when it is necessary to construct straight reinforcement above the side wall of the tunnel, the loading assembly 2 conveys the straight reinforcement to its own exit and starts the upper arc conveying chain 301. At this time, the position of the straight reinforcement on the loading assembly 2 is just located on the groove movement path of the material receiving hook 303 on the upper arc conveying chain 301; then the material receiving hooks 303 on at least two upper arc conveying chains 301 respectively hook up the straight reinforcement, thereby transferring the straight reinforcement to the upper arc conveying chain 301, and conveying it upward in sequence along the outer side of the upper arc conveying chain 301, and arranging several straight reinforcements in sequence at intervals. After reaching the required number, the conveying is stopped and the straight reinforcement is constructed. When reinforcement is required beneath the tunnel sidewall, the loading assembly 2 conveys the reinforcement to its own exit and activates the lower arc-shaped conveyor chain 302. As the reinforcement falls from the loading assembly 2 exit, it is positioned neatly within the grooves of the hooks 303 on the lower arc-shaped conveyor chains 302. This allows the reinforcement to be transferred to the lower arc-shaped conveyor chains 302 and then conveyed downward along the outer sides of the lower arc-shaped conveyor chains 302, sequentially arranging a number of reinforcements at intervals. Once the required number of reinforcements is reached, the conveyor stops and the reinforcement is constructed. To prevent interference between the upper and lower arc-shaped conveyor chains 301 and 302, a telescopic device can be provided to separate them. Alternatively, a sensor can be used to control the movement of the upper arc-shaped conveyor chain 301, positioning the two hooks 303 at the bottom on either side of the conveyor chain, thereby leaving space for the reinforcement to pass through. In the above scheme, the conveying directions of the upper arc-shaped conveyor chain 301 and the lower arc-shaped conveyor chain 302 are opposite, but the orientations of the material receiving hooks 303 are the same. For example, when located on the outside, the grooves of the material receiving hooks 303 are all facing upwards. In addition, the material receiving process can be manually observed, or sensor devices such as position sensors can be set for monitoring.

[0022] Example 2: This example 2 is further optimized based on example 1. Figure 5 As shown, a specific structure of an arc-shaped conveyor chain is provided.

[0023] In this embodiment, the upper arc-shaped conveying chain 301 and the lower arc-shaped conveying chain 302 both include an arc-shaped base plate 304 , and the arc-shaped base plate 304 is rotatably connected to a conveying chain 307 ; The curved base plate 304 is equipped with a plurality of rotating teeth that transmit power to the conveyor chain 307. A drive motor is also installed on the curved base plate 304 to drive each of the rotating teeth. In this embodiment, rotating teeth are provided at both ends of the curved base plate 304. Several mounting plates extend from the inner side of the curved base plate 304, each equipped with rotating teeth. This allows the conveyor chain 307 to sequentially engage with the rotating teeth and, driven by the drive motor (not shown), rotate the conveyor chain 307. The material receiving hook 303 is connected to the side wall of the conveyor chain 307 and extends outward.

[0024] In this embodiment, in order to facilitate the construction of straight reinforcement close to the tunnel side wall, the plurality of curved base plates 304 are connected to the trolley 1 via a telescopic motor 305; the telescopic motor 305 is used to drive the curved base plates 304 to extend and retract toward the tunnel side wall, so as to move away from or closer to the trolley 1; The output end of the telescopic motor 305 is equipped with two clamping plates, which clamp onto either side of the curved base plate 304. In this solution, the telescopic motor 305 preferably extends horizontally, with its output end clamped onto either side of the curved base plate 304 via the two clamping plates, creating a gap between the two clamping plates to clear the conveyor chain 307. The telescopic motor 305 can drive the upper and lower curved conveyor chains 301 and 302 close to the tunnel sidewalls to facilitate the construction of straight reinforcement. The telescopic motor 305 can also be used to drive the upper and lower curved conveyor chains 301 to clear the lower curved conveyor chain 302 during the material connection process.

[0025] In this embodiment, in order to adjust the angle of the arc conveyor chain to adapt to the straight reinforcement construction position, the arc base plate 304 is connected to two telescopic motors 305 that extend and retract in the same direction. The two telescopic motors 305 are distributed up and down, and the output ends are hinged to the arc base plate 304. The sidewall of the curved base plate 304 also includes a first elongated through hole 306, which runs along the length of the curved base plate 304. The output end of a telescopic motor 305, located away from the loading assembly 2, is hinged within the first elongated through hole 306 and can slide along the length of the first elongated through hole 306. In this embodiment, two telescopic motors 305 are used. Initially, the two telescopic motors 305 extend synchronously. When they reach a designated position, the inner telescopic motor 305 stops, while the outer telescopic motor 305 continues to extend, driving the curved conveyor chain to rotate and achieve angle adjustment.

[0026] Example 3: This example 3 is further optimized based on example 1 or 2. Figure 6-Figure 8 As shown, a specific structure of a feeding component 2 is provided.

[0027] In this embodiment, in order to sequentially convey the straight bars and provide a hooking position for the material hook 303, the loading assembly 2 includes a plurality of horizontal conveyor chains 201 arranged in sequence along the axial direction of the tunnel. The conveying direction of the horizontal conveyor chains 201 is toward the side wall of the tunnel. The straight bars can be placed across the plurality of horizontal conveyor chains 201. The horizontal conveyor chain 201 is provided with a plurality of protruding teeth 202 along its length, with adjacent protruding teeth 202 used to clamp straight bars. In this solution, several horizontal conveyor chains 201 are arranged in a sequential manner, and straight bars can be placed longitudinally on at least two horizontal conveyor chains 201 to achieve stable conveyance. Several protruding teeth 202 are provided on the links of the horizontal conveyor chains 201. These protruding teeth 202 are T-shaped, with the two ends of their bottom edges connected to the chain's connecting pins and the other ends extending outward from the chain. In this way, straight bars can be placed between two adjacent chains. When the straight bars are transported to the exit, the upper curved conveyor chain 301 can hook the straight bars at one side of the horizontal conveyor chain 201.

[0028] In this embodiment, in order to sequentially convey the straight bars to the horizontal conveyor chain 201, the loading assembly 2 further includes a driving unit and a loading platform 203 for conveying the straight bars to the loading assembly 2. The loading platform 203 is provided with a plurality of stepped loading assemblies 204 sequentially spaced along the axial direction of the tunnel. The stepped loading assemblies 204 include a first stepped plate 2041 fixed to the loading platform 203 and a second stepped plate 2042 slidably connected to the loading platform 203. The first step plate 2041 and the second step plate 2042 face each other on their sides, and both sides have corresponding steps in the same direction. Each step surface is tilted downward on the end facing the horizontal conveyor chain 201. Each step surface is only long enough to accommodate one straight rib. The drive unit is used to drive the second step plate 2042 up and down, thereby sequentially lifting and conveying the straight ribs on the steps of the first step plate 2041 upward. In this solution, the lowest sides of the first and second step plates 2041, 2042, are longer, capable of accommodating several straight ribs. Subsequently, driven by the drive unit (not shown in the figure), the second step plate 2042 is raised and lowered on the loading platform 203. In this way, the second step plate 2042 gradually lifts the straight ribs on the first step plate 2041 upward, eventually sliding from the top onto the horizontal conveyor chain 201.

[0029] In this embodiment, as a lifting drive method for the second step plate 2042, the first step plate 2041 has a second elongated through hole 2043 in the middle thereof; the driving unit includes a lifting shaft 205, which sequentially passes through the second elongated through holes 2043 on the first step plates 2041 and passes through the second step plates 2042; The drive unit is used to drive the lifting shaft 205 upward and downward along the length of the second elongated through-hole 2043, and to sequentially lift and transport the straight ribs on the steps of the first step plate 2041 upward via the second step plate 2042. In this embodiment, a lifting cylinder (not shown) can be used to drive the lifting shaft 205 upward and downward. The lifting shaft 205 can move within the second elongated through-hole 2043 of the first step plate 2041 to limit its position and drive the second step plate 2042 upward and downward.

[0030] In this embodiment, in order to guide the straight reinforcement, the feeding assembly 2 further includes a plurality of landslide platforms arranged in sequence along the axial direction of the tunnel, and the landslide platforms are located between the feeding platform 203 and the horizontal conveyor chain 201; The sliding platform includes an inclined section 206 and a horizontal section 207. The upper end of the inclined section 206 is used to receive the straight bars output from the upper end of the first step plate 2041. One end of the horizontal section 207 is connected to the lower end of the inclined section 206. The other end of the horizontal section 207 is located on one side of the horizontal conveyor chain 201 and is used to transport the straight bars to the horizontal conveyor chain 201. In this solution, when the straight bars move to the top of the first step plate 2041, they can freely roll down the inclined section 206 onto the horizontal section 207 due to their own gravitational potential energy. The length of the horizontal section 207 can be precisely controlled, and while providing speed buffering, the straight bars can move to the end of the horizontal section 207. Since the end of the horizontal conveyor chain 201 is located on one side of the horizontal section 207, the straight bars are precisely located in the movement path of the protruding teeth 202 of the horizontal conveyor chain 201, thereby wedging the straight bars between the two protruding teeth 202, achieving transfer.

[0031] Example 4: This example 4 is further optimized based on example 3. Figure 9 and Figure 10 As shown, a specific structure of a push component is provided.

[0032] In this embodiment, to ensure both ends of the straight reinforcement are positioned at the ends of the horizontal section 207 and prevent them from shifting out of position, the landslide platform is further provided with a pushing assembly comprising a pushing cylinder 208 and a bending plate 209. The pushing cylinder 208 is located below the horizontal section 207 and connected to the bending plate 209. The pushing cylinder 208 is used to drive the bending plate 209 to move along the length of the horizontal section 207. The horizontal section 207 has a third elongated through-hole 210 extending along its length, and the upper end of the bending plate 209 can extend upward into the third elongated through-hole 210. In this embodiment, when the straight reinforcement moves to the end of the horizontal section 207, the pushing cylinder 208 can be driven to extend, causing the extended upper end of the bending plate 209 to move along the horizontal section 207 and push the straight reinforcement to the end, preventing the straight reinforcement from shifting as a whole and facilitating the synchronous grasping of the multiple horizontal conveyor chains 201. Several sensors can be provided for monitoring.

[0033] In this embodiment, in order to avoid the free-falling straight ribs, the output end of the pushing cylinder 208 is provided with a mounting head, the bending plate 209 is rotatably arranged inside the mounting head, and the mounting head is also rotatably connected to the outside of the mounting head with a large gear 211 that rotates synchronously with the bending plate 209; The mounting head is also secured with a rotating motor 213 and rotatably connected to a pinion 212. The motor 213 is used to rotate the pinion 212, which meshes with the gear 211. In this embodiment, when the rib is freely falling, the motor 213 drives the pinion 212, which in turn rotates the gear 211. The gear 211 in turn rotates the bending plate 209, causing the protruding portion of the bending plate 209 to rotate below the horizontal section 207. Once the rib has passed, the motor 213 flips, causing the upper end of the bending plate 209 to extend upward. Furthermore, the protruding portion of the bending plate 209 is toothed to increase friction.

[0034] How this solution works: When the trolley 1 moves to the designated position, a number of straight bars are input to the lower end of the first step plate 2041, and then the second step plate 2042 is driven to rise and fall to transport the single straight bars upward in sequence. When the single straight bar moves to the top, the straight bar rolls downward under its own gravitational potential energy and gradually moves to the horizontal conveyor chain 201; the horizontal conveyor chain 201 clamps the single straight bar through its own convex teeth 202 and transports it to the side wall of the tunnel in sequence.

[0035] When it is necessary to construct straight reinforcement above the tunnel side wall, the loading assembly 2 transports the straight reinforcement to its own outlet and starts the upper arc-shaped conveyor chain 301. At this time, the position of the straight reinforcement on the loading assembly 2 is just located on the groove movement path of the receiving hook 303 on the upper arc-shaped conveyor chain 301; then the receiving hooks 303 on at least two upper arc-shaped conveyor chains 301 respectively hook the straight reinforcement, thereby transferring the straight reinforcement to the upper arc-shaped conveyor chain 301, and transporting it upward along the outer side of the upper arc-shaped conveyor chain 301 in sequence, and arranging several straight reinforcements in sequence. When the required number is reached, the transportation is stopped and the straight reinforcement is constructed.

[0036] When it is necessary to construct straight reinforcement below the tunnel side wall, the loading assembly 2 transports the straight reinforcement to its own outlet and starts the lower arc conveyor chain 302. When the straight reinforcement falls from the outlet of the loading assembly 2, the straight reinforcement can fall into the grooves of the receiving hooks 303 of the lower arc conveyor chains 302, thereby transferring the straight reinforcement to the lower arc conveyor chain 302 and transporting it downward along the outer side of the lower arc conveyor chain 302 in sequence. Several straight reinforcements are arranged in sequence at intervals. When the required number is reached, the transportation is stopped and the straight reinforcement is constructed.

[0037] In addition, the extension of the upper arc conveyor chain 301 and the lower arc conveyor chain 302 and the change of their respective angles can be controlled by the telescopic motor 305, so that the upper arc conveyor chain 301 and the lower arc conveyor chain 302 are close to the tunnel side wall, which is convenient for construction.

[0038] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A straight reinforcement feeding and transporting mechanism, characterized in that: include: Trolley (1); A feeding assembly (2), wherein both sides of the trolley (1) are provided with a feeding assembly (2), and the feeding assembly (2) sequentially and spacedly conveys single straight bars toward the side wall of the tunnel; A material receiving assembly (3) comprising a plurality of material receiving and conveying devices arranged in sequence and at intervals along the axial direction of the tunnel, wherein the material receiving and conveying devices comprise an upper arc-shaped conveying chain (301) and a lower arc-shaped conveying chain (302) distributed in the upper and lower directions, wherein the arc-surface length directions of the upper arc-shaped conveying chain (301) and the lower arc-shaped conveying chain (302) are both conveying directions, and are arranged in the circumferential direction of the tunnel, and a plurality of material receiving hooks (303) are distributed in sequence and at intervals along the arc-surface length directions of both chains; the loading assembly (2) is located between the upper arc-shaped conveying chain (301) and the lower arc-shaped conveying chain (302); The single straight reinforcement output by the feeding assembly (2) is located in the hooking path of the material receiving hook (303) in the upper arc-shaped conveying chain (301) and is transported upward along the outer side of the upper arc-shaped conveying chain (301); and the single straight reinforcement output by the feeding assembly (2) can fall into the material receiving hook (303) of the lower arc-shaped conveying chain (302) and be transported downward along the outer side of the lower arc-shaped conveying chain (302).

2. A straight reinforcement feeding and transporting mechanism according to claim 1, characterized in that: The upper arc-shaped conveying chain (301) and the lower arc-shaped conveying chain (302) both comprise an arc-shaped base plate (304), and the arc-shaped base plate (304) is rotatably connected to a conveying chain (307) on its circumferential side; A plurality of rotating teeth for transmission with the transmission chain (307) are provided on the circumferential side of the arc-shaped substrate (304), and a driving motor for driving any rotating tooth to rotate is also provided on the arc-shaped substrate (304).

3. A straight reinforcement feeding and transporting mechanism according to claim 2, characterized in that: The plurality of curved substrates (304) are connected to the trolley (1) via a telescopic motor (305); the telescopic motor (305) is used to drive the curved substrates (304) to telescope toward the tunnel sidewall to move away from or closer to the trolley (1); The output end of the telescopic motor (305) is provided with two clamping plates, and the two clamping plates are respectively clamped on both sides of the arc-shaped base plate (304).

4. A straight reinforcement feeding and transporting mechanism according to claim 3, characterized in that: Two telescopic motors (305) that telescope in the same direction are connected to the arc-shaped base plate (304); the two telescopic motors (305) are distributed up and down, and the output ends of the two telescopic motors (305) are hinged to the arc-shaped base plate (304); The side wall of the curved substrate (304) is also provided with a first long through hole (306), which is arranged along the length direction of the curved substrate (304); the output end of the telescopic motor (305) away from the loading assembly (2) is hinged in the first long through hole (306) and can slide along the length direction of the first long through hole (306).

5. A straight reinforcement feeding and transporting mechanism according to claim 1, characterized in that: The loading assembly (2) comprises a plurality of horizontal conveying chains (201) arranged in sequence and spaced apart along the axial direction of the tunnel, wherein the conveying direction of the horizontal conveying chains (201) is toward the side wall of the tunnel; the straight ribs can be placed across the plurality of horizontal conveying chains (201); The horizontal conveying chain (201) is provided with a plurality of convex teeth (202) in sequence along its length direction, and adjacent convex teeth (202) are used to clamp straight ribs.

6. A straight reinforcement feeding and transporting mechanism according to claim 5, characterized in that: The feeding assembly (2) further comprises a driving unit and a feeding platform (203) for conveying straight bars for the feeding assembly (2); a plurality of stepped feeding assemblies (204) arranged in sequence and spaced apart along the axial direction of the tunnel are provided on the feeding platform (203); the stepped feeding assembly (204) comprises a first stepped plate (2041) fixed on the feeding platform (203) and a second stepped plate (2042) slidably connected to the feeding platform (203); The side surfaces of the first step plate (2041) and the second step plate (2042) are opposite to each other, and the sides in the same direction are provided with corresponding steps, and each step surface is tilted downward at one end facing the horizontal conveying chain (201); the length of each step surface can only accommodate one straight rib; the driving unit is used to drive the second step plate (2042) to rise and fall, so as to lift and transport the straight ribs on the steps of the first step plate (2041) in sequence.

7. A straight reinforcement feeding and transporting mechanism according to claim 6, characterized in that: The first step plate (2041) has a second long through hole (2043) in the middle; the driving unit comprises a lifting shaft (205), and the lifting shaft (205) sequentially passes through the second long through holes (2043) on the plurality of first step plates (2041) and passes through the plurality of second step plates (2042); The driving unit is used to drive the lifting shaft to move up and down along the length direction of the second long through hole (2043), and to lift and transport the straight ribs on the steps of the first step plate (2041) in sequence upwards through the second step plate (2042).

8. A straight reinforcement feeding and transporting mechanism according to claim 6, characterized in that: The loading assembly (2) further comprises a plurality of landslide platforms arranged in sequence and spaced apart along the axial direction of the tunnel, wherein the landslide platforms are located between the loading platform (203) and the horizontal conveying chain (201); The landslide platform comprises a slope section (206) and a horizontal section (207), wherein the upper end of the slope section (206) is used to receive the straight reinforcement output from the upper end of the first step plate (2041); one end of the horizontal section (207) is connected to the lower end of the slope section (206), and the other end of the horizontal section (207) is located on one side of the horizontal conveyor chain (201) and is used to convey the straight reinforcement to the horizontal conveyor chain (201).

9. A straight reinforcement feeding and transporting mechanism according to claim 8, characterized in that: The landslide platform is also provided with a pushing assembly, which includes a pushing cylinder (208) and a bending plate (209). The pushing cylinder (208) is located below the horizontal section (207) and is connected to the bending plate (209); the pushing cylinder (208) is used to drive the bending plate (209) to move in the length direction of the horizontal section (207); the horizontal section (207) is provided with a third long through hole (210) along its own length direction, and the upper end of the bending plate (209) can extend from the bottom to the top to the third long through hole (210).

10. A straight reinforcement feeding and transporting mechanism according to claim 9, characterized in that: The output end of the pushing cylinder (208) is provided with a mounting head, the bending plate (209) is rotatably arranged inside the mounting head, and the mounting head is also rotatably connected to a large gear (211) on the outside thereof that rotates synchronously with the bending plate (209); A rotating motor (213) is also fixed on the mounting head and is rotatably connected to a small gear (212). The rotating motor (213) is used to drive the small gear (212) to rotate, and the small gear (212) and the large gear (211) are meshed with each other.

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