Longitudinal conveying mechanism for ring ribs

Abstract

The invention discloses a longitudinal conveying mechanism for ring ribs, which relates to the technical field of tunnel construction and comprises a trolley, a longitudinal conveying mechanism and a transverse conveying mechanism, and an annular support is arranged at the front end of the trolley; the top conveying device is arranged at the top of the trolley, and the conveying direction of the top conveying device faces the axial direction of the tunnel; the top conveying device is connected with the trolley through a lifting unit, and one end of the top conveying device extends into an opening in the top of the annular support. The lifting unit can drive the top conveying device to ascend and descend so as to eject one end of the top conveying device upwards out of the opening or descend to fall into the opening. The conveying direction of the lateral conveying device faces the axial direction of the tunnel; lateral conveying devices are arranged on the two sides of the trolley and used for conveying the two sides of the ring rib. By the adoption of the scheme, the top and the side edges of the ring ribs can be conveyed at the same time through the top conveying device and the lateral conveying device, so that stable conveying of the ring ribs in the axial direction of the tunnel is achieved, 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 longitudinal transportation mechanism for ring reinforcement. Background Art

[0002] During tunnel construction, there is a large demand for ring reinforcement, and the transportation of ring 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 longitudinal transport mechanism for ring reinforcement. By adopting this solution, the top and side edges of the ring reinforcement can be simultaneously transported by the top conveying device and the side conveying device, so as to realize stable transport of the ring reinforcement along the axial direction of the tunnel, facilitate rapid construction, and improve construction efficiency.

[0005] The present invention is achieved through the following technical solutions: A ring reinforcement longitudinal transportation mechanism, comprising: A trolley, wherein the front end of the trolley is provided with an annular bracket, the annular bracket is arranged along the circumference of the tunnel, and the outer side of the annular bracket has a groove for placing annular ribs; the top of the annular bracket is open; A top conveying device is provided on the top of the trolley, and the conveying direction of the top conveying device is in the axial direction of the tunnel; the top conveying device is connected to the trolley via a lifting unit, and one end of the top conveying device extends into the top opening of the annular support; the lifting unit can drive the top conveying device to rise and fall, so as to push one end of the top conveying device upward out of the opening, or lower it into the opening; A lateral conveying device has a conveying direction toward the axial direction of the tunnel; lateral conveying devices are provided on both sides of the trolley, and the lateral conveying devices are used to convey both sides of the annular reinforcement.

[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 longitudinal transportation mechanism for ring reinforcement. With this solution, the top and side edges of the ring reinforcement can be simultaneously transported by the top conveying device and the side conveying device, so as to achieve stable transportation of the ring reinforcement along the axial direction of the tunnel, facilitate rapid construction, and improve construction efficiency. The specific solution includes a trolley that can travel in the tunnel; the top and both sides of the trolley are respectively provided with a top conveying device and a side conveying device, the conveying surface of the top conveying device supports the top of the ring reinforcement, and the conveying surfaces of the side conveying devices on both sides support the sides of the ring reinforcement, so that the ring reinforcement can be stably transported along the axial direction of the tunnel, and the automatic transportation of the ring reinforcement is achieved, which facilitates rapid construction and improves construction efficiency. In addition, since the front end of the trolley is provided with a forming unit, the annular ribs can be formed at the forming unit, and the formed annular ribs are placed in the groove of the annular bracket, that is, the annular bracket is composed of arc-shaped frames on both sides with a maximum angle of 90 degrees, and there is a gap between the two arc-shaped frames, and the diameter of the annular bracket is slightly smaller than the diameter of the annular ribs to ensure that the annular ribs can escape from the bracket; therefore, in order to realize the automatic transportation of the formed annular ribs, an opening that passes through the top and bottom is provided at the top of the annular bracket. The top conveying device can be controlled to move upward through the lifting unit, and the top conveying device will push the annular ribs upward to a sufficient height to separate from the annular bracket. At this time, it can be transported axially to the tunnel, and the two sides of the annular ribs are gradually brought into the lateral conveying device.

[0007] Further optimization, as a specific structure of a top conveyor device, the top conveyor device includes a long plate and a chain wound around the long plate. Each end of the long plate has rotating teeth that mesh with the chain. A plurality of protruding teeth are evenly spaced along the length of the chain, and the top of the ring rib is placed between adjacent protruding teeth. In this solution, the top conveyor device includes a long plate, which is equipped with a motor. The motor controls the rotation of the rotating teeth at the end of the long plate, and the rotating teeth drive the meshing chain to rotate. To clamp the ring rib, a plurality of protruding teeth are provided on the chain. Two adjacent protruding teeth clamp the top of the ring rib, thereby achieving stable conveying.

[0008] For further optimization, in order to improve the stability of the ring reinforcement conveying and prevent the ring reinforcement from detaching, the end of the convex tooth away from the chain has a hook portion, and the extension direction of the hook portion is toward the direction away from the conveying direction.

[0009] Further optimization is that in order to connect the lifting unit, the output end of the lifting unit is provided with a jacket, and the jacket is provided with two clamping plates, and the two clamping plates are clamped on both sides of the long strip.

[0010] A further optimization is to continuously transport the material axially toward the tunnel and control the independent lifting of a top conveyor at a certain location to facilitate installation. Several top conveyors are sequentially installed on the top of the trolley in the axial direction of the tunnel. The ends of adjacent top conveyors are located on either side of the tunnel axial direction, and each top conveyor can transfer the ring reinforcement to the next top conveyor. Adjacent top conveyors are staggered, with their ends facing each other and located on either side.

[0011] Further optimized, as a specific structure of a lateral conveying device, the lateral conveying device includes a drive assembly and two parallel racks distributed up and down, the tooth edges of the racks face the outside of the trolley, and the tooth grooves in the tooth edges are used to engage with the side edges of the ring ribs; The driving assembly includes a rotating motor, which is used to drive the rack as a whole to perform circular reciprocating motion, and the length direction of the rack remains unchanged; the circular reciprocating motions of the two racks are staggered, so that the two racks are alternately moved forward and engaged with the annular ribs in turn, so as to transport the annular ribs in the axial direction of the tunnel. In this solution, the transportation is achieved by two racks distributed up and down, and the upper and lower racks are parallel to each other. Driven by the rotating motor, at least two connection points on the racks are driven simultaneously to drive the racks to perform reciprocating rotational motion while their own length direction remains unchanged; the movements of the two racks are staggered, that is, they are offset from each other one in front and one behind; when one of the racks rotates forward, it can drive the annular ribs to step in the axial direction of the tunnel until the annular ribs fall into the tooth groove of the other rack. Among them, a number of lateral conveying devices that can be connected in sequence can be set along the axial direction of the tunnel.

[0012] Further optimization is made, in order to drive the rack to reciprocate, a plurality of drive assemblies are sequentially provided along the length direction of the rack; the drive assembly also includes a drive rod, the drive rod includes an upper crank structure and a lower crank structure, the upper crank structure and the lower crank structure each include an intermediate rod, both ends of the intermediate rod are vertically connected to vertical rods extending in opposite directions, and the two intermediate rods are perpendicular to each other; The output end of the rotating motor is connected to the vertical rod at one end of the upper crank structure, and the vertical rod at the other end of the upper crank structure extends downward and is fixed to the vertical rod at one end of the lower crank structure; the vertical rod at one end of the lower crank structure passes upward through the upper rack and is rotationally connected to the upper rack; the vertical rod at the other end of the lower crank structure extends downward and is rotationally connected to the lower rack. In this solution, the reciprocating motion of the two staggered racks is realized by a drive rod, which is composed of an upper crank structure and a lower crank structure, wherein the crank structure includes an intermediate rod and vertical rods at both ends; the output end of the rotating motor is connected to the vertical rod at one end of the upper crank structure as a fixed point, and drives the other end of the upper crank structure to rotate. In this way, the upper rack can be driven to perform circular motion through the other end of the upper crank structure, while the lower crank structure always performs reciprocating motion perpendicular to the upper crank structure, and can reciprocate in the circumferential direction to push the annular rib forward.

[0013] Further optimization is required. To facilitate adjustment of the height of the two racks and their distance from the tunnel sidewall, ensuring stable contact with the ring ribs, the drive assembly also includes a lifting cylinder and a pushing cylinder. The lifting cylinder is fixed to the central platform of the trolley and is used to drive the pushing cylinder up and down. The pushing cylinder is placed horizontally, and its output end is connected to the rotary motor. The pushing cylinder is used to drive the rotary motor toward the tunnel sidewall. Several position sensors can be installed for monitoring.

[0014] Further optimization is carried out to adjust the pitch angle of the rack to adapt to the curvature of the ring rib, so as to maintain a vertical clamping state, and through multi-module changes to facilitate the separation of the ring rib, the output end of the push cylinder is connected to the push rod through a coupling, the end of the push rod is provided with a mounting head, the top of the mounting head is provided with a ball joint, and the part of the ball joint extending out of the mounting head is connected to an arc plate; The push rod is also sleeved with a mounting plate, and the mounting plate is hinged with an upper hydraulic cylinder and a lower hydraulic cylinder; the convex surface of the arc-shaped plate is used to connect the bracket and the rotating motor; The ball joint, upper hydraulic cylinder, and lower hydraulic cylinder are all connected to the concave surface of the arc plate, and the upper hydraulic cylinder and lower hydraulic cylinder are respectively arranged on the upper and lower sides of the ball joint; the output ends of the upper hydraulic cylinder and lower hydraulic cylinder are both hinged to the arc plate. In this solution, the output end of the push cylinder is connected to a push rod, the end of the push rod has a mounting head, and the end of the mounting head is mounted with a ball joint. The ball joint can rotate freely, so the arc plate welded to it can be driven to rotate through the ball joint; the upper hydraulic cylinder and lower hydraulic cylinder are also hingedly mounted on the upper and lower sides respectively. Through intelligent control, if the upper hydraulic cylinder is extended and the lower hydraulic cylinder is retracted, the arc plate can be driven to rotate upward, thereby driving the rack to tilt upward, and vice versa, it can drive the rack to tilt downward; the back of the arc plate has a bracket, and the back of the rotating motor has a plate. The bracket can be connected to the plate by bolts to achieve detachability.

[0015] Further optimization, in order to improve the installation stability, the driving assembly further includes an L-shaped plate, the bottom edge of the L-shaped plate is fixed to the middle platform of the trolley, and the lifting cylinder is fixed to the bottom edge of the L-shaped plate; The L-shaped plate has a vertical through hole on its side, with a slider inside the through hole that can slide along the length of the vertical through hole. The push rod on the push cylinder slides through the slider. The slider has dovetail blocks on both sides, and the vertical through hole has matching dovetail grooves on both sides.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects: The present invention provides a longitudinal transport mechanism for ring reinforcement. By adopting this solution, the top and side edges of the ring reinforcement can be simultaneously transported through the top conveying device and the side conveying device, so as to realize stable transportation of the ring reinforcement along the axial direction of the tunnel, facilitate rapid construction, and improve 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 diagram of the trolley structure provided by the present invention; Figure 2 The present invention provides Figure 1 Enlarged view of point A in the middle; Figure 3 The present invention provides Figure 1 Enlarged view of point B in the middle; Figure 4 A schematic structural diagram of the top conveying device provided by the present invention; Figure 5 The present invention provides Figure 4 Enlarged view of point C in the middle; Figure 6 A schematic structural diagram of the rack provided by the present invention; Figure 7 A plan view of the rack provided by the present invention; Figure 8 A schematic diagram of the driving rod structure provided by the present invention; Figure 9 A schematic structural diagram of the lateral conveying device provided by the present invention; Figure 10 A schematic diagram of the structure of the drive assembly provided by the present invention; Figure 11This is a partial schematic diagram of the drive assembly provided by the present invention.

[0018] Markings and corresponding parts names in the accompanying drawings: 1-trolley, 101-annular bracket, 2-top conveyor, 201-lifting unit, 202-long plate, 203-chain, 204-convex teeth, 205-jacket, 3-lateral conveyor, 301-rack, 302-rotating motor, 303-upper crank structure, 304-lower crank structure, 305-lifting cylinder, 306-pushing cylinder, 307-mounting head, 308-ball joint, 309-arc plate, 310-mounting plate, 311-upper hydraulic cylinder, 312-lower hydraulic cylinder, 313-bracket, 314-L-shaped plate. 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 longitudinal transport mechanism for ring reinforcement, such as Figure 1-Figure 3 Shown, including: The trolley 1 has an annular support 101 at its front end. The annular support 101 is arranged along the circumference of the tunnel and has a groove on its outer side for placing annular ribs. The top of the annular support 101 is open. A top conveyor 2 is provided on top of the trolley 1, and the conveying direction of the top conveyor 2 is toward the axial direction of the tunnel; the top conveyor 2 is connected to the trolley 1 via a lifting unit 201, and one end of the top conveyor 2 extends into the top opening of the annular bracket 101; the lifting unit 201 can drive the top conveyor 2 to rise and fall, so as to push one end of the top conveyor 2 upward out of the opening, or lower it into the opening; The lateral conveying device 3 has a conveying direction toward the axial direction of the tunnel; the lateral conveying devices 3 are provided on both sides of the trolley 1, and the lateral conveying devices 3 are used to convey both sides of the ring reinforcement.

[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 longitudinal transportation mechanism for ring reinforcement. With this solution, the top and side edges of the ring reinforcement can be simultaneously transported by the top conveying device 2 and the side conveying device 3, so as to realize stable transportation of the ring reinforcement along the axial direction of the tunnel, facilitate rapid construction, and improve construction efficiency. In the specific solution, it includes a trolley 1 that can travel in the tunnel; the top and both sides of the trolley 1 are respectively provided with a top conveying device 2 and a side conveying device 3, the conveying surface of the top conveying device 2 supports the top of the ring reinforcement, and the conveying surfaces of the side conveying devices 3 on both sides support the sides of the ring reinforcement, so that the ring reinforcement can be stably transported along the axial direction of the tunnel, and the automatic transportation of the ring reinforcement is realized, which facilitates rapid construction and improves construction efficiency. In addition, since the front end of the trolley 1 is provided with a forming unit, the annular ribs can be formed at the forming unit, and the formed annular ribs are placed in the groove of the annular bracket 101, that is, the annular bracket 101 is composed of arc-shaped frames on both sides with a maximum angle of 90 degrees, and there is a gap between the two arc-shaped frames, and the diameter of the annular bracket 101 is slightly smaller than the diameter of the annular ribs to ensure that the annular ribs can escape from the bracket 313; therefore, in order to realize the automatic transportation of the formed annular ribs, an opening that passes through the top and bottom is provided at the top of the annular bracket 101, and the top conveying device 2 can be controlled to move upward through the lifting unit 201, and the top conveying device 2 will push the annular ribs upward to a sufficient height to separate from the annular bracket 101. At this time, it can be transported axially to the tunnel, and the two sides of the annular ribs are gradually allowed to enter the lateral conveying device 3.

[0022] Example 2: This example 2 is further optimized based on example 1. Figure 4 and Figure 5 As shown, a specific structure of a top conveying device 2 is provided.

[0023] In this embodiment, the top conveyor 2 includes a long plate 202 and a chain 203 wound around the long plate 202. Both ends of the long plate 202 are equipped with rotating teeth that mesh with the chain 203. A plurality of protruding teeth 204 are evenly spaced along the length of the chain 203, with the top of the ring rib placed between adjacent protruding teeth 204. In this solution, the top conveyor 2 includes a long plate 202, which is equipped with a motor. The motor controls the rotation of the rotating teeth at the end of the long plate 202, which in turn drives the meshed chain 203 to rotate. To clamp the ring rib, a plurality of protruding teeth 204 are provided on the chain 203. Two adjacent protruding teeth 204 clamp the top of the ring rib within, achieving stable conveyance.

[0024] In this embodiment, in order to improve the stability of the ring bar conveying and prevent the ring bar from falling off, the end of the protruding tooth 204 away from the chain 203 has a hook portion, and the extension direction of the hook portion is towards the direction away from the conveying direction.

[0025] In this embodiment, in order to connect the lifting unit 201 , the output end of the lifting unit 201 is provided with a jacket 205 , and the jacket 205 is provided with two clamping plates, and the two clamping plates are clamped on both sides of the long plate 202 .

[0026] In this embodiment, to continuously transport the material axially toward the tunnel and to control the independent lifting of a top conveyor 2 at a certain location for easy installation, a plurality of top conveyors 2 are sequentially installed on the top of the trolley 1 in the axial direction of the tunnel. The ends of adjacent top conveyors 2 are located on both sides of the tunnel axial direction, and the top conveyors 2 can transfer the ring reinforcement to the next top conveyor 2. The adjacent top conveyors 2 are staggered, that is, their ends face each other and are located on both sides.

[0027] Example 3: This example 3 is further optimized based on example 1 or example 2. Figures 6-11 As shown, a specific structure of a lateral transfer device 3 is provided.

[0028] In this embodiment, the lateral conveying device 3 includes a driving assembly and two parallel racks 301 distributed vertically. The tooth edges of the racks 301 face the outside of the trolley 1, and the tooth grooves in the tooth edges are used to engage with the side edges of the ring ribs. The drive assembly includes a rotary motor 302, which is used to drive the rack 301 to perform circular reciprocating motion as a whole, while the length direction of the rack 301 remains unchanged. The circular reciprocating motions of the two racks 301 are staggered, so that the two racks 301 alternately engage the annular reinforcement forward in sequence, thereby transporting the annular reinforcement in the axial direction of the tunnel. In this solution, transportation is achieved by two racks 301 distributed vertically. The upper and lower racks 301 are parallel to each other. Driven by the rotary motor 302, at least two connection points on the racks 301 are simultaneously driven to drive the racks 301 to perform reciprocating rotational motion while their length direction remains unchanged. The movements of the two racks 301 are staggered, that is, one is offset from the other. When one rack 301 rotates forward, it can drive the annular reinforcement to step forward in the axial direction of the tunnel until the annular reinforcement falls into the tooth groove of the other rack 301. In particular, a number of lateral conveying devices 3 that can be connected in sequence can be provided along the axial direction of the tunnel.

[0029] In this embodiment, in order to drive the rack 301 to reciprocate, a plurality of drive assemblies are sequentially arranged along the length direction of the rack 301; the drive assembly also includes a drive rod, which includes an upper crank structure 303 and a lower crank structure 304. The upper crank structure 303 and the lower crank structure 304 each include an intermediate rod, and both ends of the intermediate rod are perpendicularly connected to vertical rods extending in opposite directions, and the two intermediate rods are perpendicular to each other. The output end of the rotating motor 302 is connected to the vertical rod at one end of the upper crank structure 303, and the vertical rod at the other end of the upper crank structure 303 extends downward and is fixedly connected to the vertical rod at one end of the lower crank structure 304; the vertical rod at one end of the lower crank structure 304 passes upward through the upper rack 301 and is rotationally connected to the upper rack 301; the vertical rod at the other end of the lower crank structure 304 extends downward and is rotationally connected to the lower rack 301. In this solution, the reciprocating motion of the two staggered racks 301 is realized by a driving rod, which is composed of an upper crank structure 303 and a lower crank structure 304, wherein the crank structure includes an intermediate rod and vertical rods at both ends; the output end of the rotating motor 302 is connected to the vertical rod at one end of the upper crank structure 303 as a fixed point, and drives the other end of the upper crank structure 303 to rotate, so that the upper rack 301 can be driven to perform circular motion through the other end of the upper crank structure 303, while the lower crank structure 304 always performs reciprocating motion perpendicular to the upper crank structure 303, and can reciprocate in the circumferential direction to push the annular ribs forward.

[0030] In this embodiment, to facilitate adjustment of the height of the two racks 301 and their distance from the tunnel sidewall, thereby ensuring stable contact with the ring ribs, the drive assembly further includes a lifting cylinder 305 and a pushing cylinder 306. The lifting cylinder 305 is fixed to the central platform of the trolley 1 and is used to drive the pushing cylinder 306 up and down. The pushing cylinder 306 is positioned horizontally, and its output end is connected to the rotary motor 302. The pushing cylinder 306 is used to drive the rotary motor 302 toward the tunnel sidewall. Several position sensors may be provided for monitoring.

[0031] In this embodiment, in order to adjust the pitch angle of the rack 301 to adapt to the curvature of the ring rib, facilitate maintaining a vertical clamping state, and facilitate the detachment of the ring rib through multi-module changes, the output end of the push cylinder 306 is connected to a push rod through a coupling, the end of the push rod is provided with a mounting head 307, the top of the mounting head 307 is provided with a ball joint 308, and the portion of the ball joint 308 extending from the mounting head 307 is connected to an arc plate 309; The push rod is also provided with a mounting plate 310, and an upper hydraulic cylinder 311 and a lower hydraulic cylinder 312 are hingedly connected to the mounting plate 310; the convex surface of the arc-shaped plate 309 is used to connect the bracket 313 and the rotating motor 302; The ball joint 308, the upper hydraulic cylinder 311 and the lower hydraulic cylinder 312 are all connected to the concave surface of the arc plate 309, and the upper hydraulic cylinder 311 and the lower hydraulic cylinder 312 are respectively arranged on the upper and lower sides of the ball joint 308; the output ends of the upper hydraulic cylinder 311 and the lower hydraulic cylinder 312 are both hinged to the arc plate 309. In this solution, the output end of the pushing cylinder 306 is connected to a push rod, the end of the push rod has a mounting head 307, and the end of the mounting head 307 is installed with a ball joint 308. The ball joint 308 can rotate freely, so the arc plate 309 welded to it can be driven to rotate through the ball joint 308; the upper hydraulic cylinder 311 and the lower hydraulic cylinder 312 are respectively hingedly installed on the upper and lower sides. Through intelligent control, if the upper hydraulic cylinder 311 is extended and the lower hydraulic cylinder 312 is retracted, the arc plate 309 can be driven to rotate upward, so as to drive the rack 301 to tilt upward, and vice versa, the rack 301 can be driven to tilt downward; the back of the arc plate 309 is provided with a bracket 313, and the back of the rotating motor 302 is provided with a plate. The bracket 313 can be connected to the plate by bolts to achieve detachability.

[0032] In this embodiment, in order to improve the installation stability, the driving assembly further includes an L-shaped plate 314, the bottom edge of the L-shaped plate 314 is fixed to the middle platform of the trolley 1, and the lifting cylinder 305 is fixed to the bottom edge of the L-shaped plate 314; The L-shaped plate 314 has a vertical through-hole on its side, which contains a slider that can slide along the length of the through-hole. The push rod on the push cylinder 306 slides through the slider. The slider has dovetail blocks on both sides, and the vertical through-hole has matching dovetail grooves on both sides.

[0033] How this solution works: The formed annular ribs are placed in the grooves of the annular bracket 101. An opening is provided at the top of the annular bracket 101, which passes through the top and bottom. The top conveying device 2 can be controlled to move upward through the lifting unit 201, so that the top of the annular ribs are stuck in the adjacent protruding teeth 204 of the top conveying device 2. The top conveying device 2 pushes the annular ribs upward to a sufficient height to separate from the annular bracket 101. At this time, they can be transported axially to the tunnel, and the two sides of the annular ribs are gradually allowed to enter the lateral conveying device 3.

[0034] The lateral conveyor 3 has two parallel upper and lower racks 301. Driven by a rotary motor 302, the motor simultaneously drives at least two connection points on the racks 301, causing them to rotate back and forth while maintaining their length. The two racks 301 move in an offset manner, one in front of the other. When one rack 301 rotates forward, it drives the ring reinforcement in an axial direction of the tunnel until it falls into the tooth groove of the other rack 301. This, in conjunction with the top conveyor 2, enables three-point synchronous conveyance of the ring reinforcement at the top and on both sides.

[0035] In addition, in order to facilitate the adjustment of the position and pitch angle of the lateral conveying device 3, the ring reinforcement can be stably clamped and the ring reinforcement can be detached; wherein, the lifting cylinder 305 is fixed to the middle platform of the trolley 1, and is used to drive the pushing cylinder 306 to rise and fall; the pushing cylinder 306 is placed horizontally, and its output end is connected to the rotating motor 302, and the pushing cylinder 306 is used to drive the rotating motor 302 to move toward the side wall of the tunnel. The output end of the pushing cylinder 306 is connected to a push rod, and the end of the push rod has a mounting head 307, and the end of the mounting head 307 is installed with a ball joint 308. The ball joint 308 can rotate freely, so the arc plate 309 welded to it can be driven to rotate through the ball joint 308; the upper hydraulic cylinder 311 and the lower hydraulic cylinder 312 are also hingedly installed on the upper and lower sides respectively. Through intelligent control, if the upper hydraulic cylinder 311 is extended and the lower hydraulic cylinder 312 is retracted, the arc plate 309 can be driven to rotate upward, thereby driving the rack 301 to tilt upward, and vice versa, the rack 301 can be driven to tilt downward.

[0036] 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 longitudinal transport mechanism for ring reinforcement, characterized in that: include: A trolley (1), wherein a front end of the trolley (1) is provided with an annular bracket (101), the annular bracket (101) is arranged along the circumference of the tunnel, and has a groove on its outer side for placing annular ribs; the top of the annular bracket (101) is open; A top conveying device (2), the top conveying device (2) is arranged on the top of the trolley (1), and the conveying direction of the top conveying device (2) is toward the axial direction of the tunnel; the top conveying device (2) is connected to the trolley (1) via a lifting unit (201), and one end of the top conveying device (2) extends into the top opening of the annular bracket (101); the lifting unit (201) can drive the top conveying device (2) to rise and fall, so as to push one end of the top conveying device (2) upward out of the opening, or to drop it into the opening; A lateral conveying device (3) has a conveying direction toward the axial direction of the tunnel; both sides of the trolley (1) are provided with lateral conveying devices (3), and the lateral conveying devices (3) are used to convey both sides of the annular reinforcement.

2. A longitudinal transport mechanism for ring reinforcement according to claim 1, characterized in that: The top conveying device (2) comprises a long plate (202) and a chain (203) wound around the long plate (202), wherein both ends of the long plate (202) are provided with rotating teeth meshing with the chain (203); a plurality of convex teeth (204) are uniformly distributed along the length direction of the chain (203), and the top of the annular rib is placed between adjacent convex teeth (204).

3. A longitudinal transport mechanism for ring reinforcement according to claim 2, characterized in that: One end of the convex tooth (204) away from the chain (203) is provided with a hook portion, and the extension direction of the hook portion is towards the direction away from the transmission.

4. The longitudinal transport mechanism for ring reinforcement according to claim 2, characterized in that: The output end of the lifting unit (201) is provided with a jacket (205), and the jacket (205) is provided with two clamping plates, and the two clamping plates are clamped on both sides of the long strip (202).

5. The longitudinal transport mechanism for ring reinforcement according to claim 1, characterized in that: A plurality of top conveying devices (2) are sequentially provided on the top of the trolley (1) in the axial direction of the tunnel, and the ends of adjacent top conveying devices (2) are arranged on both sides in the axial direction of the tunnel, and the top conveying device (2) can convey the ring reinforcement to the next top conveying device (2).

6. A longitudinal transport mechanism for ring reinforcement according to any one of claims 1 to 5, characterized in that: The lateral conveying device (3) comprises a driving assembly and two parallel racks (301) distributed vertically, wherein the tooth edges of the racks (301) face the outside of the trolley (1), and the tooth grooves in the tooth edges are used to engage with the side edges of the ring ribs; The driving assembly comprises a rotary motor (302), and the rotary motor (302) is used to drive the rack (301) to perform circular reciprocating motion as a whole, and the length direction of the rack (301) remains unchanged; the circular reciprocating motions of the two racks (301) are staggered with each other, so that the two racks (301) are alternately engaged with the annular reinforcement in sequence and forward, so as to transport the annular reinforcement in the axial direction of the tunnel.

7. The longitudinal transport mechanism for ring reinforcement according to claim 6, characterized in that: Several drive assemblies are sequentially arranged along the length direction of the rack (301); the drive assembly further comprises a drive rod, the drive rod comprising an upper crank structure (303) and a lower crank structure (304), the upper crank structure (303) and the lower crank structure (304) both comprising an intermediate rod, both ends of the intermediate rod being vertically connected to vertical rods extending in opposite directions, and the two intermediate rods being perpendicular to each other; The output end of the rotating motor (302) is connected to a vertical rod at one end of the upper crank structure (303); the vertical rod at the other end of the upper crank structure (303) extends downward and is fixedly connected to the vertical rod at one end of the lower crank structure (304); the vertical rod at one end of the lower crank structure (304) passes upward through the rack (301) of the upper layer and is rotationally connected to the rack (301) of the upper layer; the vertical rod at the other end of the lower crank structure (304) extends downward and is rotationally connected to the rack (301) of the lower layer.

8. The longitudinal transport mechanism for ring reinforcement according to claim 6, characterized in that: The driving assembly further comprises a lifting cylinder (305) and a pushing cylinder (306); the lifting cylinder (305) is fixed to the middle platform of the trolley (1) and is used to drive the pushing cylinder (306) to move up and down; the pushing cylinder (306) is placed horizontally, and its output end is connected to the rotating motor (302); the pushing cylinder (306) is used to drive the rotating motor (302) to move toward the side wall of the tunnel.

9. The longitudinal transport mechanism for ring reinforcement according to claim 8, characterized in that: The output end of the push cylinder (306) is connected to a push rod via a coupling, the end of the push rod is provided with a mounting head (307), the top of the mounting head (307) is provided with a ball joint (308), and the portion of the ball joint (308) extending out of the mounting head (307) is connected to an arc-shaped plate (309); The push rod is also sleeved with a mounting plate (310), and an upper hydraulic cylinder (311) and a lower hydraulic cylinder (312) are hingedly connected to the mounting plate (310); the convex surface of the arc-shaped plate (309) is used to connect the bracket (313) and the rotating motor (302); The ball joint (308), the upper hydraulic cylinder (311) and the lower hydraulic cylinder (312) are all connected to the concave surface of the arc plate (309), and the upper hydraulic cylinder (311) and the lower hydraulic cylinder (312) are respectively arranged on the upper and lower sides of the ball joint (308); the output ends of the upper hydraulic cylinder (311) and the lower hydraulic cylinder (312) are both hinged to the arc plate (309).

10. The ring reinforcement longitudinal transportation mechanism according to claim 9, characterized in that: The driving assembly further comprises an L-shaped plate (314), the bottom edge of the L-shaped plate (314) being fixed to the middle platform of the trolley (1), and the lifting cylinder (305) being fixed to the bottom edge of the L-shaped plate (314); A vertical through hole is opened on the side of the L-shaped plate (314), and a slider is provided in the vertical through hole. The slider can slide along the length direction of the vertical through hole; the push rod on the pushing cylinder (306) slides through the slider.

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