Tunnel lining longitudinal steel bar automatic lifting feeding system and integrated trolley

Abstract

The application discloses a kind of tunnel lining longitudinal reinforcement automatic lifting feeding system and integrated trolley, including ring guide rail, travelling mechanism, support beam, travelling mechanism is used to drive support beam moves along ring guide rail;Multiple connecting rods, telescopic parts, rotating mechanism are provided on support beam, each rotating mechanism is installed with storage frame, and rotating mechanism is used to drive storage frame to rotate;The bottom opening of storage frame is loading and unloading opening, multiple vertical through-slots are provided on the two side walls of the longitudinal direction of storage frame, all storage frames are longitudinally arranged, and the position of each column of through-slots is one-to-one corresponding, for accommodating longitudinal reinforcement;Opening and closing plate and blanking mechanism are provided at the bottom opening of storage frame, for controlling the blanking of longitudinal reinforcement.The application is high in degree of automation, easy to operate, can reduce the labor intensity of reinforcement feeding process, reduce the number of workers, improve the safety of operation.

Description

Technical Field

[0001] This invention relates to the field of tunnel secondary lining construction technology, specifically to an automatic lifting and feeding system for longitudinal steel bars in tunnel lining and an integrated trolley. Background Technology

[0002] Secondary lining, in contrast to initial support, refers to the construction of an inner lining using materials such as concrete, after the initial support has been implemented in the tunnel. This involves laying waterproof membranes, installing steel mesh, and constructing the inner lining. The goal is to reinforce the support and optimize the waterproofing and drainage system. The initial support deforms together with the surrounding rock, forming a unified whole that shares the external load. The main function of secondary lining is to reinforce the surrounding rock, bear the pressure from the superstructure rock mass, and withstand various external forces, ensuring the tunnel's safety and stability. Secondary lining plays a crucial role in tunnel engineering, not only enhancing the overall stability of the tunnel structure but also improving its safety and functionality.

[0003] In the secondary lining construction of tunnels, the laying of waterproof membrane and the installation of reinforcing bars are two crucial steps. The waterproof membrane needs to be laid in a ring along the tunnel wall, followed by the feeding, positioning, binding, and welding of circumferential and longitudinal reinforcing bars to form a reinforcing mesh. During construction, trolleys and scaffolds are typically used for auxiliary operations. However, in existing technologies, most scaffolds for different procedures are not interchangeable, requiring different scaffolds for each step, resulting in low construction efficiency and high equipment costs. While the feeding of circumferential reinforcing bars has become automated or semi-automated through methods such as dragging and traction, the feeding of longitudinal reinforcing bars still primarily relies on manual dragging or electric hoist lifting, which still suffers from low construction efficiency, high labor intensity, and high safety risks. Summary of the Invention

[0004] This invention provides an automatic lifting and feeding system for longitudinal steel bars in tunnel lining and an integrated trolley, to solve the problems of low efficiency and high labor intensity in the longitudinal steel bar feeding process of tunnel lining in the prior art, as well as the problems of single function and low integration of the trolley.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: Design an automatic lifting and feeding system for longitudinal steel bars in tunnel lining, including circumferential guide rails at both ends, a traveling mechanism on each of the circumferential guide rails, and a longitudinal support beam between the two traveling mechanisms. The traveling mechanism is used to drive the support beam to move along the circumferential guide rails. Multiple sets of connecting rods are installed on the support beam. A telescopic component is installed at the front end of each connecting rod, and a rotating mechanism is installed at the front end of the telescopic component. A storage box is installed on each rotating mechanism, and the rotating mechanism is used to drive the storage box to rotate. The bottom opening of the storage frame is a loading and unloading port. Multiple rows of vertical through slots are provided on the longitudinal side walls of the storage frame, and the through slots are connected to the loading and unloading port. All storage frames are arranged longitudinally, and the positions of the through slots on each storage frame correspond one-to-one to accommodate longitudinal steel bars. An opening and closing plate is provided at the bottom opening of the storage box. A flipping motor is provided on one side of the storage box to drive the opening and closing plate to flip and control the opening and closing of the bottom opening of the storage box. A feeding mechanism is provided on the opening and closing plate to control the feeding of longitudinal steel bars.

[0006] In the above technical solution, the automatic lifting and feeding system for longitudinal steel bars in tunnel lining can be installed on a trolley. The circumferential guide rail can be set on the circumferential support of the trolley, or a traveling mechanism can be directly installed on the circumferential support of the trolley. The traveling mechanism drives the support beam to move circumferentially, enabling the longitudinal steel bars to be laid along the tunnel wall. Multiple sets of storage frames are driven by the support beam for loading, lifting, laying, and unloading the longitudinal steel bars. The storage frames move synchronously and are always in the same column. The slots on the storage frames correspond one-to-one, and the slots in the same column together form a channel for placing the longitudinal steel bars; the longitudinal steel bars are arranged sequentially in the slots. The storage frames can move in multiple directions through the support beam, telescopic components, and rotating mechanism. The support beam moves circumferentially under the drive of the traveling mechanism, moving to the corresponding position according to the required spacing for unloading the longitudinal steel bars. The telescopic components are used to adjust the position of the storage frames from the tunnel wall, and the rotating mechanism is used to drive the storage frames to rotate axially. When material needs to be loaded, the traveling mechanism moves the storage box to the bottom of one side of the trolley, and the rotating mechanism rotates the storage box upward so that its opening faces vertically upward. The opening and closing plate opens, and the workers put the longitudinal steel bars into the through slots one by one. The number of through slots can be set according to the needs. After the material loading is completed, the opening and closing plate closes, and the rotating mechanism rotates the storage box 180 degrees so that its opening faces downward. When the traveling mechanism moves to the corresponding position, the longitudinal steel bars are unloaded by the unloading mechanism. During the unloading process, the rotating mechanism controls the opening of the storage box to always face directly downward. When the traveling mechanism moves from the bottom of one side of the trolley to the bottom of the other side, the unloading and placement of the longitudinal steel bars for the current tunnel wall is completed.

[0007] Preferably, the feeding mechanism includes a baffle plate disposed at the lower part of the opening and closing plate, a push plate disposed at the lower part of the baffle plate, and a receiving component disposed at the lower part of the outer end of the push plate; The baffle moves along the lower part of the opening and closing plate via a translation component, moving the distance of one through slot each time to control the longitudinal steel bars to be fed in the order of each column. The outer edge of the push plate extends beyond the width of one through slot of the baffle and moves back and forth along the lower part of the baffle under the action of the push component. When the push plate moves inward, a longitudinal steel bar in the corresponding through slot on its outer side falls down and is caught by the receiving component. The push plate returns to its original position, sending out this longitudinal steel bar while blocking the opening of the through slot that is currently feeding. This process is repeated to achieve the feeding of a single longitudinal steel bar.

[0008] The translation component is used to move the baffle along the opening and closing plate. During material feeding, it moves one width of the through slot each time. After the longitudinal steel bars in the outermost through slot are fed out, it moves backward one through slot distance to feed the steel bars in the next through slot.

[0009] During the actual unloading process, the push plate moves back and forth. First, the baffle moves backward one notch so that the outermost slot opening aligns with the push plate (the push plate extends beyond the baffle by one slot width). As the push plate moves inward, a longitudinal steel bar falls down and is caught by the receiving component. The push plate then moves outward to return to its original position, and the longitudinal steel bar is thus carried out. This process is repeated until all the longitudinal steel bars in the outermost slot are unloaded. Then, the baffle moves inward one notch again to unload the next slot.

[0010] Preferably, the receiving assembly includes a receiving plate with a groove on the upper outer side. The receiving plate moves back and forth with the push plate. When the push plate moves inward, the groove is located at the lower part of the discharge channel, catching a longitudinal steel bar falling from the channel. After the push plate returns to its original position, the receiving plate sends out the longitudinal steel bar. This process is repeated to achieve single-bar receiving of longitudinal steel bars.

[0011] Preferably, the upper middle part of the receiving plate is hinged to the lower outer part of the push plate, and a spring is provided between the upper inner side of the receiving plate and the push plate; a sealing plate is provided at the lower part of the opening and closing plate, and the sealing plate moves synchronously with the baffle; one end of the inner side of the sealing plate is fixedly connected to the baffle, and the outer end is provided with a stop block with a trapezoidal cross-section. The upper surface of the stop block is an inclined surface that gradually increases from the outside to the inside, and the lower part of the receiving plate is an inclined surface that slopes upward from the outside to the inside. The cross-section of the receiving plate is similar to the shape of a spoon, with the handle located between the push plate and the stop block. The receiving plate reciprocates under the action of the push plate. When the push plate moves inward, it moves the receiving plate along with it. Under the action of the inclined surface of the stop block, the inner side of the receiving plate rotates upward and compresses the spring, causing the end where the groove is located to rotate downward, leaving space for the longitudinal steel bar to fall into the groove. When the push plate returns to its original position, the position of the spoon handle of the receiving plate moves downward along the inclined surface of the stop block, the spring resets, and drives the receiving plate to rotate along the hinge position and return to its original position. A longitudinal steel bar is then brought out, waiting for the staff to tie it.

[0012] Those skilled in the art can understand the respective functions of the opening and closing plate, baffle, encapsulation plate, push plate, and receiving plate, as well as the positional relationships, installation methods, movement methods, and driving methods between the components, and can use appropriate components and connection structures to realize the functions of each part.

[0013] Preferably, the width of the through slot is the width to accommodate one longitudinal steel bar, and the longitudinal steel bars are arranged one by one in each through slot; all storage boxes operate synchronously and always remain in one longitudinal row; during feeding, the rotating mechanism drives the storage box to rotate upward to the vertical direction, the opening and closing plate flips backward to open the bottom opening upward, and the longitudinal steel bars are arranged and placed into the through slot in sequence. After placement, the opening and closing plate flips forward to close the bottom opening of the storage box, the rotating mechanism drives the storage box to rotate downward 180 degrees to open the bottom opening downward, and the feeding mechanism controls the feeding of the longitudinal steel bars one by one; during feeding, the rotating mechanism controls the bottom opening of the storage box to always face directly downward.

[0014] Preferably, the telescopic component is a telescopic arm driven by a cylinder or hydraulic system. The telescopic component is used to move the storage frame in the lateral position, which can adjust the position of the storage frame from the platform to avoid interference from the platform when the storage frame moves, and adjust the position of the storage frame from the hole wall to facilitate the binding of steel bars after material is unloaded.

[0015] Preferably, the circumferential guide rail has an "I"-shaped cross-section. The traveling mechanism includes side plates located on both sides of the circumferential guide rail. Traveling wheels are installed on the inner side of the side plates and rotate within the space formed between the side plates and the circumferential guide rail. A fixing member is provided between the two side plates, and the fixing member is installed together with a rotary chain. The rotary chain is installed along the upper part of the circumferential guide rail to form a chain loop. Drive sprockets are respectively provided at the bottom ends of both sides of the circumferential guide rail, driving the rotary chain to move, thereby driving the traveling mechanism to travel along the circumferential guide rail. The two ends of the support beam are fixedly connected to the side plates of the traveling mechanism on both sides. Those skilled in the art can also use other forms of moving mechanisms as needed to achieve the movement of the support beam along the circumferential track.

[0016] Preferably, the rotating mechanism includes a fixed cylinder connected to the telescopic member, a rotating shaft disposed inside the fixed cylinder, and a rotary motor for driving the rotating shaft to rotate. Suspension rods are respectively disposed on both sides of the top of the storage frame, with the top of the suspension rods fixedly connected to both ends of the rotating shaft. The rotating shaft can pass through the end sidewall of the fixed cylinder and connect to the suspension rods. Here, the function of the rotating mechanism is to drive the storage frame to rotate. Those skilled in the art will understand its function and role, and other forms of equipment components can be used as needed to realize the function of the rotating mechanism.

[0017] This invention also relates to an integrated trolley employing the aforementioned automatic lifting and feeding system for longitudinal steel bars in tunnel lining. Two sets of circumferential guide rails are respectively installed on circumferential supports at the front and rear ends of the trolley. Multiple sets of longitudinal steel bar auxiliary installation mechanisms are arranged circumferentially on the steel structure frame of the trolley. Each longitudinal steel bar auxiliary installation mechanism includes a base plate with an installation groove in the middle. A wall plate is installed in the installation groove, and a slot for placing longitudinal steel bars is provided along the upper length of the wall plate. The wall plate is hydraulically driven and moves up and down in the installation groove to lift the longitudinal steel bars to the position of the circumferential steel bars and assist in binding.

[0018] The trolley equipped with the aforementioned automatic lifting and feeding system for longitudinal steel bars in tunnel lining can also integrate other construction auxiliary equipment to increase the trolley's functionality, improve its reusability, functional integration, and automation, thereby saving on the cost of the trolley and platform equipment and improving construction efficiency.

[0019] During construction, the binding operation can be carried out simultaneously with the material cutting process (binding while cutting), and the workers can directly take the longitudinal steel bars from the receiving mechanism for binding. Alternatively, the longitudinal steel bars can be placed on the corresponding auxiliary installation mechanism in sequence during material cutting, and the workers can carry out the binding operation with the help of the auxiliary installation mechanism. By setting up the auxiliary installation mechanism, the longitudinal steel bars can be positioned more accurately. At the same time, the wall panel can lift the longitudinal steel bars for auxiliary binding, which can reduce the labor intensity of the workers and improve the binding efficiency.

[0020] Preferably, a waterproof membrane laying mechanism is also provided on the trolley frame. The waterproof membrane laying mechanism includes movable devices mounted on circumferential supports at both ends of the trolley, a support rod between two movable devices, a crossbar for hanging the waterproof membrane roll connected to the outside of the support rod, and an arc-shaped guide plate at the upper part of the support rod. Multiple guide plates can be arranged side by side, and the bottom of the guide plate is hinged to the support rod by a torsion spring.

[0021] Waterproofing membrane laying is a crucial step in secondary lining construction. The waterproofing membrane must be laid circumferentially along the tunnel wall. During this process, unevenness, wrinkles, and insufficient slack are common problems. This invention addresses this by incorporating a waterproofing membrane laying mechanism. A moving device drives the waterproofing membrane roll to move and release material, moving a certain distance at a time to lay the membrane in sections. Simultaneously, a guide plate flattens the membrane. The guide plate, hinged to the support rod via a torsion spring, allows it to rotate within a certain angle. Under the action of the torsion spring, the guide plate always moves close to the tunnel wall surface, ensuring a close fit between the waterproofing membrane and the surface. The moving device of the waterproofing membrane laying mechanism operates similarly to a traveling mechanism. The moving mechanism can be directly mounted on the circumferential support of the trolley, or an additional circumferential guide rail / plate can be added along the outside of the circumferential support for movement and support. Furthermore, the installation of the waterproofing membrane laying mechanism does not interfere with the traveling mechanism and longitudinal beams in the longitudinal reinforcement lifting and feeding system. During the installation of the waterproof membrane, the traveling mechanism and longitudinal beam move to the bottom of the trolley side without affecting the installation of the waterproof membrane. After the waterproof membrane is installed, the moving device drives the waterproof membrane installation mechanism to the bottom of the trolley side without affecting the lifting and feeding of the longitudinal steel bars.

[0022] The beneficial effects of this invention are as follows: This invention relates to an automatic lifting and feeding system for longitudinal steel bars in tunnel lining. The system uses longitudinally arranged storage frames to hold the longitudinal steel bars, simultaneously lifting and feeding batches of bars. A traveling mechanism and longitudinal support beams move the storage frames circumferentially, bringing the steel bars to their designated positions for easy positioning and subsequent binding. Telescopic components allow adjustment of the storage frames' lateral position, facilitating connection with subsequent binding processes and reducing labor intensity. A rotating mechanism controls the loading, unloading, and angle adjustments of the storage frames, ensuring they are always open and facing downwards during unloading. The unloading mechanism enables single-bar unloading and orderly unloading according to the slot positions, further facilitating accurate positioning and subsequent binding of the longitudinal steel bars.

[0023] The automatic longitudinal rebar lifting and feeding system of this invention has a high degree of automation and is easy to operate. It can reduce the labor intensity of the rebar feeding process, reduce the number of workers, and improve the safety of the operation. It can effectively improve the feeding efficiency and speed of longitudinal rebar, improve the accurate positioning of longitudinal rebar, and help improve the quality of subsequent rebar binding.

[0024] The trolley using the longitudinal rebar automatic lifting and feeding system of this invention can integrate more functions, improve the functionality and utilization rate of the trolley equipment, and solve the problems of single function of existing construction equipment, non-interchangeability of trolleys for different processes, high equipment cost, and serious waste of resources. By setting a waterproof membrane laying mechanism on the trolley, it is also possible to achieve segmented and flat laying of the waterproof membrane, thereby improving the laying quality and efficiency.

[0025] The automatic lifting and feeding system for longitudinal steel bars in tunnel lining and the integrated trolley in this invention use an automated lifting mechanism to replace conventional manual operation. It has the advantages of convenient construction, reduced number of construction personnel, low labor intensity, guaranteed personnel safety, and improved construction efficiency. It has a wider range of applications and plays an important role in the development of tunnel secondary lining construction technology. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a structural schematic diagram of the present invention from another angle; Figure 3 for Figure 1 Enlarged view of part A in the image; Figure 4 for Figure 1 Enlarged view of part B in the image; Figure 5 for Figure 1 Enlarged view of section C in the image; Figure 6 for Figure 2Enlarged view of part D in the image; Figure 7 A simplified structural diagram illustrating the loading and unloading process of the storage box; Figure 8 This is a simplified structural diagram of the material storage box during material unloading (push plate movement). Figure 9 This is a simplified structural diagram of the material storage box during material unloading (push plate reset).

[0027] The following components are labeled in the diagram: 1. Cart; 2. Ring guide rail; 3. Traveling mechanism; 4. Support beam; 5. Linkage rod; 6. Telescopic component; 7. Rotating mechanism; 8. Storage box; 9. Through slot; 10. Opening and closing plate; 11. Tilting motor; 12. Baffle; 13. Push plate; 14. Receiving plate; 15. Spring; 16. Hinge connection; 17. Translation component; 18. Encapsulation plate; 19. Stop block; 20. Pushing component; 21. Hanging rod; 22. Rotary chain; 23. Waterproof plate; 24. Base plate; 25. Wall panel; 26. Slot; 27. Support rod; 28. Crossbar; 29. ​​Guide plate; 30. Moving device; 31. Longitudinal reinforcement. Detailed Implementation

[0028] The specific embodiments of the present invention are described below with reference to examples. However, these examples are only used to illustrate the present invention in detail and do not limit the scope of the present invention in any way. Unless otherwise specified, the equipment components involved in the following examples are all conventional equipment components.

[0029] Example 1: An automatic lifting and feeding system for longitudinal reinforcing bars in tunnel lining, see [link / reference] Figures 1-4 It includes circumferential guide rails 2 at both ends, and a traveling mechanism 3 is provided on each of the circumferential guide rails 2. A longitudinal support beam 4 is provided between the two traveling mechanisms 3. The traveling mechanism 3 is used to drive the support beam 4 to move along the circumferential guide rails 2.

[0030] The circumferential guide rail 2 can be set on the circumferential support of the trolley 1, or the traveling mechanism 3 can be directly installed on the circumferential support of the trolley 1. The traveling mechanism 3 drives the support beam 4 to move along the circumferential direction, so as to realize the cutting and laying of the longitudinal steel bars 31.

[0031] Multiple sets of connecting rods 5 are provided on the support beam 4. A telescopic component 6 is provided at the front end of each connecting rod 5. A rotating mechanism 7 is provided at the front end of the telescopic component 6. A storage frame 8 is installed on each rotating mechanism 7. The rotating mechanism 7 is used to drive the storage frame 8 to rotate.

[0032] By incorporating support beam 4, telescopic component 6, and rotating mechanism 7, the storage frame 8 can move in multiple directions. Driven by the traveling mechanism 3, support beam 4 moves circumferentially, moving to the corresponding position for unloading longitudinal reinforcing bars 31 according to the required spacing. Telescopic component 6 adjusts the distance between the storage frame 8 and the tunnel wall, while rotating mechanism 7 drives the storage frame 8 to rotate axially, adjusting its angle during loading and unloading. The combined action of support beam 4, telescopic component 6, and rotating mechanism 7 enables automatic lifting and unloading of longitudinal reinforcing bars 31, significantly reducing labor intensity and improving construction efficiency.

[0033] The bottom opening of the storage frame 8 is a loading and unloading port. Multiple rows of vertical through slots 9 are provided on the longitudinal side walls of the storage frame 8, and the through slots 9 are connected to the loading and unloading port. All the storage frames 8 are arranged longitudinally, and the positions of each row of through slots 9 on each storage frame correspond one-to-one, which is used to accommodate the longitudinal steel bars 31.

[0034] An opening and closing plate 10 is provided at the bottom opening of the storage frame 8. A flipping motor 11 is provided on one side of the storage frame 8 to drive the opening and closing plate 10 to flip and control the opening and closing of the bottom opening of the storage frame 8. A feeding mechanism is provided on the opening and closing plate 10 to control the feeding of the longitudinal steel bars 31.

[0035] The width of the through-slot 9 is sufficient to accommodate one longitudinal steel bar 31. The longitudinal steel bars 31 are arranged one-to-one within each through-slot 9. All storage boxes 8 move synchronously, always remaining in the same column. Multiple sets of storage boxes 8 move synchronously via the support beam 4 for loading, lifting, placing, and unloading the longitudinal steel bars 31. The storage boxes 8 move synchronously and remain in the same column. The through-slots 9 on the storage boxes 8 correspond one-to-one, and the through-slots 9 in the same column together form a channel for placing the longitudinal steel bars 31. The longitudinal steel bars 31 are arranged sequentially within the through-slots 9, facilitating subsequent sequential unloading. This loading and unloading method allows for the simultaneous lifting of multiple longitudinal steel bars 31, enabling batch lifting, loading, and unloading of the longitudinal steel bars 31, effectively improving the lifting speed and loading efficiency of the longitudinal steel bars 31.

[0036] During material loading, the traveling mechanism 3 moves the storage box 8 to the bottom of one side of the trolley 1. The rotating mechanism 7 rotates the storage box 8 upward to a vertical position, so that its opening faces vertically upward. The opening and closing plate 10 flips backward to open the opening. The workers then place the longitudinal steel bars 31 into the through slots 9 in sequence. The number of through slots 9 can be set according to requirements. After placement, the opening and closing plate 10 flips forward to close the bottom opening of the storage box 8. The rotating mechanism 7 rotates the storage box 8 downward by 180 degrees so that the bottom opening faces downward. When the traveling mechanism 3 moves to the position where material needs to be unloaded, the unloading mechanism controls the unloading of the longitudinal steel bars 31 one by one. During unloading, the rotating mechanism 7 controls the bottom opening of the storage box 8 to always face directly downward. When the traveling mechanism 3 moves from the bottom of one side of the trolley 1 to the bottom of the other side, the unloading and placement of the longitudinal steel bars of the current tunnel wall is completed.

[0037] The telescopic component 6 here can be a telescopic arm driven by a cylinder or hydraulic system. The rotating mechanism 7 includes a fixed cylinder connected to the telescopic component 6, a rotating shaft inside the fixed cylinder, and a rotary motor that drives the rotating shaft to rotate. Hanging rods 21 are respectively installed on both sides of the top of the storage frame 8, with the top of the hanging rods 21 fixedly connected to both ends of the rotating shaft. Both the telescopic component 6 and the rotating mechanism 7 can be implemented using existing equipment. Those skilled in the art can understand their functions and roles and implement them using suitable equipment components; their specific configurations will not be elaborated here.

[0038] The feeding mechanism includes a baffle 12 located at the lower part of the opening and closing plate 10, a push plate 13 located at the lower part of the baffle 12, and a receiving component located at the lower outer end of the push plate 13. The baffle 12 moves along the lower part of the opening and closing plate 10 via a translation component 17, moving the distance of one through slot 9 each time, to control the feeding of longitudinal steel bars 31 in the order of each column. The outer edge of the push plate 13 extends beyond the width of one through slot 9 of the baffle 12, and reciprocates along the lower part of the baffle 12 under the action of the pushing component 20. When the push plate 13 moves inward, one longitudinal steel bar 31 falls into the corresponding through slot 9 on its outer side and is caught by the receiving component. The push plate 13 returns to its original position, sending out this longitudinal steel bar 31 while blocking the opening of the through slot 9 that is feeding. This process is repeated to achieve single feeding of longitudinal steel bars 31. See [link to relevant documentation]. Figure 7 .

[0039] The translation component 17 is used to move the baffle 12 along the opening and closing plate 10. During material feeding, it moves one width of a through slot 9 at a time. After the longitudinal steel bars in the outermost through slot 9 are fed out, it moves back one distance of through slot 9 to feed the steel bars in the next through slot 9. The translation component 17 can adopt the following structure: a telescopic rod (the telescopic rod can be pneumatically or hydraulically driven) is set on the outside of the opening and closing plate 10. The front end of the telescopic rod is connected to the baffle 12. During material feeding, the telescopic rod controls the baffle 12 to move one distance of through slot 9 at a time. After the material feeding is completed, the telescopic rod retracts, and the baffle 12 returns to its initial position (blocking the outlets of all through slots 9), waiting for the next loading. The baffle 12 can be slidably installed with the opening and closing plate 10 by means of a chute or pulley, or by means of an "I"-shaped groove or a slider. Those skilled in the art can understand the function and role of the translation component 17 and implement it using suitable equipment components. The specific structure listed in this embodiment is not intended to limit the scope of protection of the present invention. Using other structures in the prior art to realize the function of this component can be regarded as within the scope of protection of the present invention.

[0040] The walking mechanism can be controlled using the following scheme: the cross-section of the circumferential guide rail 2 is "I" shaped; the walking mechanism 3 includes side plates located on both sides of the circumferential guide rail 2, with walking wheels installed on the inner side of the side plates. The walking wheels rotate within the space formed between the side plates and the circumferential guide rail. A fixing member is provided between the two side plates, and the fixing member is installed together with a rotary chain 22. The rotary chain 22 is installed along the upper part of the circumferential guide rail 2, forming a chain loop. Drive sprockets are respectively provided at the bottom ends of both sides of the circumferential guide rail 2, driving the rotary chain 22 to move, thereby driving the walking mechanism 3 to move along the circumferential guide rail 2; the two ends of the support beam 4 are fixedly connected to the side plates of the walking mechanism 3 on both sides, and the walking mechanism 3 drives the support beam 4 and its longitudinal steel bar lifting device to move together along the circumferential guide rail 2. Those skilled in the art can understand the structure and working principle of the walking mechanism and implement it. Other types of structures and installation methods in the prior art can also be used to achieve the function of the walking mechanism.

[0041] Example 2: An automatic lifting and feeding system for longitudinal reinforcing bars in tunnel lining. Based on the example, the receiving component adopts the following structure: The receiving component includes a receiving plate 14, with a groove on the upper outer side of the receiving plate 14. The receiving plate 14 moves back and forth with the push plate 13. When the push plate 13 moves inward, the groove is located at the lower part of the discharge channel 9, catching a longitudinal reinforcing bar 31 falling from the channel 9. After the push plate 13 returns to its original position, the receiving plate 14 feeds out the longitudinal reinforcing bar 31. This reciprocating motion achieves single-bar receiving of longitudinal reinforcing bars 31. See [link to example]. Figures 8-9 .

[0042] During the actual unloading process, the push plate 13 is moved back and forth. First, the baffle 12 moves backward one notch, so that the lower part of the outermost through slot 9 corresponds to the end of the push plate 13 (the outer side of the push plate 13 extends beyond the width of one through slot 9 of the baffle 12). When the push plate 13 moves inward, a longitudinal steel bar 31 falls down and is caught by the receiving component. The push plate 13 then moves outward to return to its original position, and the longitudinal steel bar 31 is carried out. This process is repeated until all the longitudinal steel bars 31 in the outermost through slot 9 are unloaded. Then, the baffle 12 moves inward one notch to unload the next through slot 9. When the baffle 12 moves, it drives the pushing component to move as well, so that the top of the push plate 13 is always directly facing the through slot 9 to be unloaded. The pushing component can be implemented using a cylinder or a hydraulic cylinder, which drives the push plate 13 to move back and forth along the lower part of the baffle 12. The push plate 13 and the baffle 12 can also be slidably installed together using a groove / pulley or an "I"-shaped groove / slider.

[0043] The receiving plate 14 is hinged to the lower outer side of the push plate 13 via a hinged connection 16, allowing it to rotate. A spring 15 is installed between the upper inner side of the receiving plate 14 and the push plate 13. A sealing plate 18 is installed at the lower part of the opening and closing plate 10, and the sealing plate 18 moves synchronously with the baffle 12. One end of the inner side of the sealing plate 18 is fixedly connected to the baffle 12, and a trapezoidal stop 19 is installed at the outer end. The upper surface of the stop 19 is a gradually increasing slope from the outside to the inside, and the lower part of the receiving plate 14 is an upwardly sloping slope from the outside to the inside. The cross-section of the receiving plate 14 is similar to the shape of a spoon, with the handle located between the push plate 13 and the stop 19. The receiving plate 14 reciprocates under the action of the push plate 13. When the push plate 13 moves inward, it drives the receiving plate 14 to move together. Under the action of the inclined surface of the stop block 19, the inner side of the receiving plate 14 rotates upward and squeezes the spring 15, causing the end where the groove is located to rotate downward, leaving space for the longitudinal steel bar 31 to fall into the groove. When the push plate 13 returns to its original position, it drives the receiving plate 14 to move. At the same time, the position of the spoon handle of the receiving plate 14 moves downward along the inclined surface of the stop block, the spring 15 resets, and drives the receiving plate 14 to rotate along the hinge connection 16 and return to its original position. A longitudinal steel bar 31 is then brought out, waiting for the staff to tie it.

[0044] Those skilled in the art can understand the functions and roles of the receiving component and the pushing component and implement them using appropriate equipment components. The specific structures listed in this embodiment are not intended to limit the scope of protection of this invention. Using other structures in the prior art to implement the function of this component can be considered as being within the scope of protection of this invention.

[0045] Example 3: An integrated trolley employing the automatic lifting and feeding system for longitudinal steel bars in tunnel lining as described in Examples 1 and 2, see [link / reference]. Figure 2 Two sets of circumferential guide rails 2 are respectively installed on the circumferential supports at the front and rear ends of the trolley 1; multiple sets of longitudinal steel reinforcement auxiliary installation mechanisms are arranged circumferentially on the steel structure frame of the trolley, see [reference]. Figure 5 The longitudinal reinforcement auxiliary installation mechanism includes a base plate 24, with an installation groove in the middle of the base plate 24. A wall plate 25 is installed in the installation groove, and a slot 26 for placing the longitudinal reinforcement 31 is provided along the upper length of the wall plate 25. The wall plate 25 is hydraulically driven and moves up and down in the installation groove to lift the longitudinal reinforcement 31 to the position of the circumferential reinforcement and assist in binding (the longitudinal reinforcement is loaded and bound after the circumferential reinforcement is installed). Limiting plates can also be installed on both sides of the base plate 24 to prevent the longitudinal reinforcement 31 from rolling off the wall plate.

[0046] When feeding the longitudinal steel bars 31, the above-mentioned lifting and feeding system is used. After the receiving plate 14 receives a single longitudinal steel bar 31, it can directly connect with the workers in the binding process and bind the steel bars while feeding them; or the longitudinal steel bars 31 are placed on the longitudinal steel bar auxiliary installation mechanism first, and the longitudinal steel bars 31 are bound together after the feeding is completed. The auxiliary installation mechanism is used to accurately position the steel bars during binding.

[0047] A waterproof membrane laying mechanism is also installed on the frame of trolley 1, see [link / reference]. Figure 2 , Figure 6 The waterproof membrane laying mechanism includes movable devices 30 mounted on circumferential supports at both ends of the trolley 1. A support rod 27 is positioned between the two movable devices 30. A crossbar 28 for hanging the roll of waterproof membrane 23 is connected to the outside of the support rod 27. An arc-shaped guide plate 29 is mounted on the upper part of the support rod 27. Multiple guide plates 29 can be arranged side-by-side. The bottom of the guide plate 29 is hinged to the support rod 27 via a torsion spring. The torsion spring ensures that the guide plate 29 remains in contact with the waterproof membrane 23 laying surface, thereby improving the flatness of the waterproof membrane 23 laying.

[0048] When laying the waterproof membrane 23, the moving device 30 is located at the bottom of one side of the trolley 1. The roll of the waterproof membrane 23 is installed on the crossbar 28. The end of the waterproof membrane 23 passes around the support rod 27 and the guide plate 29 and is fixed to the bottom of the tunnel wall. The moving device 30 moves a certain distance along the circumferential support. During the movement, the roll of the waterproof membrane 23 rotates under the action of tension to release the material. Under the action of the guide plate 29, the waterproof membrane 23 is attached to the tunnel wall and laid flat on the tunnel wall. The workers fix this section of the waterproof membrane 23. After the installation is completed, the moving device 30 continues to move to lay the next section of the waterproof membrane until it moves to the bottom of the other side of the trolley 1, thus completing the laying of the waterproof membrane for this section of the tunnel wall.

[0049] The automatic lifting and feeding system for longitudinal steel bars in tunnel lining and the integrated trolley in this invention have a high degree of automation, which can effectively improve the lifting speed and efficiency of longitudinal steel bars, reduce the labor intensity of steel bar feeding process, and reduce the number of construction personnel and effectively improve construction efficiency during implementation.

[0050] The present invention has been described in detail above with reference to the embodiments. However, those skilled in the art will understand that, without departing from the spirit of the present invention, various specific parameters in the above embodiments can be changed to form multiple specific embodiments, all of which are common variations of the present invention, and will not be described in detail here.

Claims

1. A tunnel lining longitudinal reinforcement automatic lifting feed system, characterized in that, It includes circumferential guide rails at both ends, with a traveling mechanism installed on each of the circumferential guide rails, and a longitudinal support beam installed between the two traveling mechanisms. The traveling mechanism is used to drive the support beam to move along the circumferential guide rails. Multiple sets of connecting rods are installed on the support beam. A telescopic component is installed at the front end of each connecting rod, and a rotating mechanism is installed at the front end of the telescopic component. A storage box is installed on each rotating mechanism, and the rotating mechanism is used to drive the storage box to rotate. The bottom opening of the storage frame is a loading and unloading port. Multiple rows of vertical through slots are provided on the longitudinal side walls of the storage frame, and the through slots are connected to the loading and unloading port. All the storage frames are arranged longitudinally, and the positions of the through slots on each storage frame correspond one-to-one to accommodate longitudinal steel bars. An opening and closing plate is provided at the bottom opening of the storage box. A flipping motor is provided on one side of the storage box to drive the opening and closing plate to flip and control the opening and closing of the bottom opening of the storage box. A feeding mechanism is provided on the opening and closing plate to control the feeding of longitudinal steel bars. The feeding mechanism includes a baffle plate disposed at the lower part of the opening and closing plate, a push plate disposed at the lower part of the baffle plate, and a receiving component disposed at the lower part of the outer end of the push plate; The baffle moves along the lower part of the opening and closing plate via a translation component, moving the distance of one through slot each time to control the sequential feeding of longitudinal steel bars in each column. The outer edge of the push plate extends beyond the width of one through slot of the baffle and reciprocates along the lower part of the baffle under the action of the pushing component. When the push plate moves inward, a longitudinal steel bar falls from the corresponding through slot on its outer side and is caught by the receiving component. The push plate returns to its original position, feeding out this longitudinal steel bar while blocking the opening of the through slot for feeding. This process is repeated to achieve single feeding of longitudinal steel bars. The receiving component includes a receiving plate with a groove on its upper outer side. The receiving plate reciprocates with the push plate. When the push plate moves inward, the groove is located at the lower part of the feeding through slot, catching a longitudinal steel bar falling from the through slot. After the push plate returns to its original position, the receiving plate... The longitudinal reinforcing bars are fed out, and this process is repeated to achieve single-bar splicing of the longitudinal reinforcing bars. The upper middle part of the splicing plate is hinged to the lower outer side of the push plate, and a spring is installed between the upper inner side of the splicing plate and the push plate. A sealing plate is installed at the lower part of the opening and closing plate, and the sealing plate moves synchronously with the baffle. One end of the sealing plate is fixedly connected to the baffle, and the outer end is equipped with a trapezoidal stop block. The upper surface of the stop block is a gradually increasing slope from the outside to the inside, and the lower part of the splicing plate is an upward slope from the outside to the inside. When the push plate moves inward, it drives the splicing plate to move together. Under the action of the slope of the stop block, the inner side of the splicing plate rotates upward and compresses the spring, causing the end where the groove is located to rotate downward, leaving space for the longitudinal reinforcing bars to fall into the groove. When the push plate returns to its original position, it drives the splicing plate to move, and at the same time, the spring resets, driving the splicing plate back to its original position.

2. A tunnel lining longitudinal reinforcement automatic lift and feed system according to claim 1 wherein, The width of the through slot is sufficient to accommodate one longitudinal steel bar, and the longitudinal steel bars are arranged one by one in each through slot; all storage boxes move synchronously and always remain in a single longitudinal column; during loading, the rotating mechanism drives the storage box to rotate upward to a vertical position, the opening plate flips backward to open the bottom opening upward, and the longitudinal steel bars are placed into the through slot in sequence. After placement, the opening plate flips forward to close the bottom opening of the storage box, the rotating mechanism drives the storage box to rotate downward 180 degrees to open the bottom opening downward, and the unloading mechanism controls the unloading of the longitudinal steel bars one by one; during unloading, the rotating mechanism controls the bottom opening of the storage box to always face directly downward.

3. The automatic longitudinal steel reinforcement lifting and feeding system for tunnel lining according to claim 1, characterized in that, The telescopic component is a telescopic arm driven by a cylinder or hydraulic system.

4. The automatic longitudinal steel reinforcement lifting and feeding system for tunnel lining according to claim 1, characterized in that, The cross-section of the circumferential guide rail is "I" shaped. The traveling mechanism includes side plates located on both sides of the circumferential guide rail. Traveling wheels are installed on the inner side of the side plates and rotate in the space formed between the side plates and the circumferential guide rail. A fixing component is provided between the two side plates, and the fixing component is installed together with the rotary chain. The rotary chain is installed along the upper part of the circumferential guide rail to form a chain loop. Drive sprockets are respectively provided at the bottom of both sides of the circumferential guide rail, which drive the rotary chain to move, thereby driving the traveling mechanism to travel along the circumferential guide rail. The two ends of the support beam are fixedly connected to the side plates of the two traveling mechanisms on both sides.

5. The automatic lifting and feeding system for longitudinal reinforcing bars in tunnel lining according to claim 1, characterized in that, The rotating mechanism includes a fixed cylinder connected to the telescopic component, a rotating shaft inside the fixed cylinder, and a rotating motor that drives the rotating shaft to rotate. Hanging rods are respectively installed on both sides of the top of the storage frame, and the top of the hanging rods are fixedly connected to both ends of the rotating shaft.

6. An integrated trolley employing the automatic lifting and feeding system for longitudinal steel bars in tunnel lining as described in claim 1, characterized in that, Two sets of circumferential guide rails are respectively set on the circumferential supports at the front and rear ends of the trolley; multiple sets of longitudinal steel bar auxiliary installation mechanisms are arranged circumferentially on the steel structure frame of the trolley. The longitudinal steel bar auxiliary installation mechanism includes a base plate, an installation groove is opened in the middle of the base plate, a wall plate is set in the installation groove, and a slot for placing longitudinal steel bars is opened along the upper length direction of the wall plate; the wall plate is hydraulically driven and moves up and down in the installation groove to lift the longitudinal steel bars to the position of the circumferential steel bars and assist in binding.

7. The integrated trolley according to claim 6, characterized in that, A waterproof membrane laying mechanism is also provided on the trolley frame. The waterproof membrane laying mechanism includes moving devices set on the circumferential supports at both ends of the trolley, a support rod between the two moving devices, a crossbar for hanging the waterproof membrane roll is connected to the outside of the support rod, an arc-shaped guide plate is provided on the upper part of the support rod, and the bottom of the guide plate is hinged to the support rod by a torsion spring.

Images