Section-adjustable TBM (tunnel boring machine) synchronous lining trolley

Abstract

The invention provides a section-adjustable TBM (tunnel boring machine) synchronous lining trolley, and belongs to the technical field of tunnel construction. The working platform is mounted at the top between the two door beams, and the length direction of the working platform is defined as the front-back direction; the walking mechanism is mounted at the bottom of the door beam and used for driving the trolley to move; by arranging the cable support, the air pipe protection cylinder, the water pipe support and the belt conveying mechanism, the lining trolley is free of air supply, water supply and power failure and free of material transportation in the walking process; the retracting and releasing mechanism can extend in the horizontal direction and the vertical direction, so that when the formwork is replaced, the state of the retracting and releasing mechanism can be adjusted according to the structure of the fracture surface so as to be matched with the corresponding formwork unit. Therefore, the lining trolley can achieve adaptive adjustment on different sections, and the construction requirements of continuous different sections are met.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel construction, and in particular to a cross-section adjustable TBM synchronous lining trolley. Background Art

[0002] According to the actual construction conditions of the tunnel and the requirements of the relevant documents on concrete quality that the maintenance with formwork should be ended after 60 hours, the demoulding should be started, and the walking trolley should be required, the relationship between the tooling configuration of the traditional lining trolley, the removal of the formwork to adapt to the new section, and the walking time of the trolley after demoulding was statistically analyzed. It was found that the traditional lining trolley has the following shortcomings: ① Due to the lack of pipeline protection devices during the walking process of the traditional lining trolley after demoulding, the wind, electricity and water supply need to be stopped, which greatly increases the preparation work before the trolley travels, increases the walking time of the trolley, and invests a lot of manpower and material resources, resulting in discontinuous construction and idle resources; ② The traditional lining trolley is designed with a fixed section and cannot adapt to the changes in the cross-sectional size of the tunnel. The section can only be changed by removing the formwork, which is not only time-consuming and labor-intensive, but also leads to delays in the construction progress; ③ The traditional material distribution system has defects such as difficulty in rotating and replacing pipes, high labor intensity, and large operating space occupied by pipelines and distribution systems. Summary of the invention

[0003] The invention provides a cross-section adjustable TBM synchronous lining trolley to solve the technical problems in the prior art.

[0004] In order to solve the above problems, the cross-section adjustable TBM synchronous lining trolley provided by the present invention adopts the following technical solutions: Includes two door beams; The working platform is installed on the top between the two door beams, and the length direction of the working platform is defined as the front-to-back direction; The walking mechanism is installed at the bottom of the door beam and is used to drive the trolley to move; Also includes: Fabric tracks; A retracting and extending mechanism, which is used to support the arch top mold unit or the top mold supplementary unit; A cable bracket is installed on the outside of the door beam, the cable bracket comprises a base and a V-shaped wheel rotatably mounted on the base, the V-shaped wheel is used to reduce friction with the cable; The air duct protective tube is installed above the material distribution track. The air duct protective tube is arranged along the front-to-back direction. The air duct protective tube includes a middle protective tube and end protective tubes installed at the front and rear ends of the middle protective tube. The end protective tube is a conical structure. The inner side of the middle protective tube is also provided with a plurality of rollers for reducing friction. A water pipe support comprises a mounting frame hoisted on a side template unit and water pipe supporting wheels evenly distributed on the mounting frame for supporting the water pipe.

[0005] As a further improvement, a cloth track is fixedly mounted on the working platform and extends along the front-rear direction of the working platform. The cloth track is arranged on one side of the working platform and is used to guide the cloth trolley.

[0006] As a further improvement, the retracting and releasing mechanism includes a first hydraulic cylinder and a second hydraulic cylinder arranged on the left and right sides of the cloth track, and support rods are fixedly installed on the top of the first hydraulic cylinder and the second hydraulic cylinder. The second hydraulic cylinder is slidably assembled on the working platform along the left and right directions, and the working platform is also equipped with an adjusting screw for driving the second hydraulic cylinder to slide along the left and right directions.

[0007] As a further improvement, a belt conveyor mechanism is slidably mounted on the working platform, and the belt conveyor mechanism is used to convey materials.

[0008] As a further improvement, the cable bracket also includes a rib plate, the rib plate is connected to the door beam by bolts, the base is fixedly connected to the rib plate, and the base is arranged at intervals in the up and down directions.

[0009] As a further improvement, the outer side surface of the end casing is provided with reinforcing ribs.

[0010] As a further improvement, the end casing is composed of a plurality of end pieces, so as to facilitate the disassembly of the end casing.

[0011] As a further improvement, a plurality of rollers for reducing friction are rotatably mounted inside the intermediate casing.

[0012] As a further improvement, a roller rotatably mounted on the working platform is provided below the belt conveying mechanism, and the belt conveying mechanism is arranged on the roller so that the belt conveying mechanism can slide relatively on the working platform.

[0013] The beneficial effects of the above technical solution of the present invention are as follows: 1. The present invention realizes the uninterrupted air, water, electricity and material transportation during the movement of the lining trolley by arranging a cable bracket, an air duct casing, a water pipe bracket and a belt conveyor mechanism.

[0014] (1) The lining trolley does not stop power during its movement. The cable bracket is equipped with a V-shaped wheel to support and guide the cable. The rotation of the V-shaped wheel makes the friction between the V-shaped wheel and the cable rolling friction, which reduces the wear on the cable and ensures the stability of the cable.

[0015] (2) The lining trolley does not stop during the movement: ① A roller is provided on the inner wall of the middle casing to reduce the friction generated when the wind tube passes through the duct casing, avoiding direct contact between the wind tube and the middle casing, thereby greatly reducing the occurrence of scratches on the wind tube.

[0016] ② End guards are provided at both ends of the middle guard. The end guards are of conical structure, which protect the wind tube from damage and reduce the bending of the wind duct caused by the trolley moving too fast. The end guards are composed of multiple end pieces. On the one hand, they can be easily disassembled and installed, reducing the difficulty of disassembly and assembly. On the other hand, if scratches or other damage that may scratch the wind tube appear at a certain position of the end guard, the end piece at the corresponding position can be directly replaced, which can protect the wind tube and reduce the replacement cost.

[0017] ③ The full coverage design of the lower roller inside the middle casing effectively avoids the wear and scratches on the lower part of the wind tube caused by the weight of the wind tube itself during the movement of the template trolley, that is, a horizontal roller is arranged at the bottom of the middle casing, thereby reducing the problem of serious wear on the lower part of the wind tube caused by the weight of the wind tube itself.

[0018] (3) The lining trolley does not stop water supply during its movement. The high-pressure water pipe is supported by a pulley. The high-pressure water pipe does not move during the movement of the trolley, so that the lining trolley does not stop water supply during its movement.

[0019] (4) The lining trolley continuously transports materials during its movement. The belt conveyor mechanism passes through the interior of the lining trolley. Due to the setting of the rollers, the belt conveyor mechanism and the lining trolley are relatively independent. During the movement of the lining trolley, the belt conveyor mechanism can transport materials at the same time, eliminating the situation where the process connection is not in place and affecting the construction progress.

[0020] 2. A fabric track is provided on the working platform, and the fabric trolley on the fabric track is designed to be lightweight and small, saving the upper operating space of the lining trolley. The fabric track increases the flexibility of the fabric trolley, and the fabric trolley and the fabric pipe can be connected by remote control, reducing labor intensity.

[0021] 3. The variable-section adjustable template of the lining trolley improves the versatility and flexibility of the lining trolley and can adapt to the construction requirements of different sections. The retractable mechanism can be extended in the horizontal and vertical directions, so that when the template is replaced, the state of the retractable mechanism can be adjusted according to the structure of the section to adapt to the corresponding template unit. In this way, the lining trolley can achieve adaptive adjustment to different sections, meet the construction requirements of different sections continuously, and improve construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein: Figure 1It is a schematic diagram of the main structure of the cross-section adjustable TBM synchronous lining trolley of the present invention; Figure 2 It is a side view structural schematic diagram of the cross-section adjustable TBM synchronous lining trolley of the present invention; Figure 3 It is a schematic diagram of the main structure of the end casing of the cross-section adjustable TBM synchronous lining trolley of the present invention; Figure 4 It is a side view structural schematic diagram of the end casing of the cross-section adjustable TBM synchronous lining trolley of the present invention; Figure 5 It is a schematic diagram of the main structure of the intermediate casing of the cross-section adjustable TBM synchronous lining trolley of the present invention; Figure 6 It is a side view structural schematic diagram of the middle casing of the cross-section adjustable TBM synchronous lining trolley of the present invention; Figure 7 It is a schematic diagram of the main structure of the cable support of the cross-section adjustable TBM synchronous lining trolley of the present invention; Figure 8 It is a side structural schematic diagram of the cable support of the cross-section adjustable TBM synchronous lining trolley of the present invention; Description of reference numerals: 1. Door beam; 2. Cable bracket; 21. Rib plate; 22. V-shaped wheel; 23. Base; 24. Cable; 3. Working platform; 4. Fabric track; 5. Water pipe bracket; 6. Arch top mold unit; 7. Top mold supplement unit; 8. Duct casing; 81. End casing; 82. End piece; 83. Intermediate casing; 84. Roller; 9. Translation mechanism; 10. Lifting cylinder; 11. Belt conveyor mechanism; 12. Traveling mechanism; 13. Air duct. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0024] In the existing technology, it is necessary to stop the wind, electricity and water, which greatly increases the preparation work before the trolley moves, increases the time for the trolley to move, and invests a lot of manpower and material resources, resulting in discontinuous construction and idle resources; and the traditional lining trolley is designed with a fixed section, which cannot adapt to changes in the cross-sectional size of the tunnel and can only be changed by removing and replacing the template, which is not only time-consuming and labor-intensive, but also leads to delays in the construction progress; in addition, the traditional fabric system is difficult to rotate and replace pipes, the labor intensity is high, and the pipeline and fabric system occupy a large operating space.

[0025] In response to the above problem, the present invention arranges an air duct protective tube to achieve non-stop air flow during the movement of the lining trolley. A roller is rotatably installed on the inner side of the middle protective tube of the air duct protective tube to reduce the wear of the middle protective tube on the air duct. Affected by gravity, the lower part of the air duct is more easily deformed and contacts the middle protective tube. Therefore, a horizontal roller is arranged on the lower inner side of the middle protective tube, while the upper part of the air duct is basically not in contact with the middle protective tube. Therefore, there is no need to arrange an additional roller. This can achieve full coverage of the rollers and reduce unnecessary rollers.

[0026] End shields are provided at both ends of the middle shield. The end shields are of conical structure, which also reduces the bending of the air duct caused by the trolley moving too fast. In the process of using the end shields, new problems are found. First, after a period of use, the end shields are prone to local deformation due to their own gravity, external extrusion or bumps, which leads to increased local friction and serious wear of the wind tube; second, the end shields require manual assistance during disassembly and assembly. The volume and weight of the end shields are relatively large, and manual disassembly and assembly are difficult, and there are safety hazards. Therefore, the present invention arranges a number of reinforcing ribs on the outside of the end shield, and the reinforcing ribs are arranged on the outside of the end shield, which neither affects the passage of the wind tube nor improves the deformation resistance of the end shield; at the same time, the end shield is assembled in an assembled manner and is composed of a number of end pieces, which reduces the difficulty of disassembly and assembly. At the same time, if there are scratches, bumps, deformations and other factors that may affect the passage of the wind tube, the corresponding end piece can be directly replaced, which reduces the difficulty of replacement and improves practicality.

[0027] Cable brackets, water pipe brackets, etc. ensure that the cables and high-pressure water pipes remain stationary during the movement of the lining trolley, thereby ensuring that the water and power supply are not cut off during the movement of the lining trolley.

[0028] The lining trolley keeps transporting materials while it is moving. The belt conveyor mechanism passes through the inside of the lining trolley. Due to the setting of the rollers, the belt conveyor mechanism and the lining trolley are relatively independent. During the movement of the lining trolley, the belt conveyor mechanism can transport materials at the same time, eliminating the situation where the process connection is not in place and affecting the construction progress.

[0029] A fabric track is provided on the working platform, and the fabric trolley on the fabric track is designed to be lightweight and miniaturized. The fabric track increases the flexibility of the fabric trolley. The position of the fabric trolley on the fabric track can be accurately controlled by remote control, and then accurately aligned with the fabric pipe, thereby reducing labor intensity.

[0030] The variable-section adjustable formwork of the lining trolley improves the versatility and flexibility of the lining trolley and can adapt to the construction requirements of different sections. The retractable mechanism can be extended horizontally and vertically, so that when the formwork is replaced, the state of the retractable mechanism can be adjusted according to the structure of the section to adapt to the corresponding formwork unit.

[0031] Steps for section adjustment: ① Remove the arch top mold unit; ② Adjust the lifting cylinder of the retracting and extending mechanism; ③ Install the top mold supplement unit; ④ Achieve centering; ⑤ Lock.

[0032] After introducing the basic principle of the present invention, various non-limiting embodiments of the present invention are described in detail below. The number of any element in the drawings is for illustration and not for limitation, and any naming is only for distinction and does not have any limiting meaning.

[0033] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0034] Embodiment 1 of the cross-section adjustable TBM synchronous lining trolley provided by the present invention: like Figure 1-Figure 8 As shown, it includes two door beams 1, a working platform 3 installed on the top between the two door beams 1, and a traveling mechanism 12 for driving the trolley to move; the length direction of the working platform 3 is defined as the front-back direction; the traveling mechanism 12 is installed at the bottom of the door beam 1. A side template unit is also provided on the side of the door beam 1, and the side template unit is connected to the door beam 1 through a hydraulic component.

[0035] The above are all prior art, and in the present invention, no improvement is made to the above structure, so the above structure will not be described in detail here.

[0036] like Figure 1 As shown, a cloth track 4 is fixedly installed on the right side of the working platform 3, and the cloth track 4 is fixedly installed on the working platform 3 and extends along the front and rear direction of the working platform 3. The cloth track 4 is used to guide the cloth trolley; after the cloth track 4 is set, the cloth trolley can accurately control the moving position of the cloth trolley by remote control. The cloth trolley has high flexibility, and the double-sided cloth pipes are set within the path of the cloth trolley. In this way, the cloth trolley can be remotely controlled to connect with the cloth pipe, reducing labor intensity. The redundant pipelines in the prior art are abandoned.

[0037] like Figure 1As shown, the retracting and extending mechanism is used to support the vault top mold unit 6 or the top mold supplement unit 7. The retracting and extending mechanism includes a first hydraulic cylinder and a second hydraulic cylinder arranged on the left and right sides of the cloth track 4. The first hydraulic cylinder and the second hydraulic cylinder are fixedly installed with support rods on the top. The second hydraulic cylinder is slidably assembled on the working platform 3 along the left and right directions. The working platform 3 is also equipped with an adjusting screw for driving the second hydraulic cylinder to slide along the left and right directions; the first hydraulic cylinder and the second hydraulic cylinder are used to adjust the height in the vertical direction, and the adjusting screw is used to adjust the position of the second hydraulic cylinder in the horizontal direction. In this way, when the tunnel section changes, the corresponding top mold supplement unit 7 can be adapted by adjusting the retracting and extending mechanism.

[0038] like Figure 1 , Figure 7 and Figure 8 As shown, the outer side of the door beam 1 is fixedly installed with a cable bracket 2 including a base 23 and a V-shaped wheel 22 rotatably assembled on the base 23, and the V-shaped wheel 22 is used to reduce the friction with the cable 24; the cable bracket 2 also includes a rib plate 21, the rib plate 21 is connected to the door beam 1 by bolts, the base 23 is fixedly connected to the rib plate 21, and the base 23 is arranged at intervals along the up and down directions, so that multiple groups of bases 23 and V-shaped wheels 22 can be assembled to the rib plate 21 first (in this embodiment, three bases 23 and three V-shaped wheels 22 are provided), and then the rib plate 21 is fixed to the door beam 1, thereby reducing the difficulty of operation.

[0039] The air duct protective tube 8 is installed above the material distribution track 4. The air duct protective tube 8 is arranged along the front-to-back direction. The air duct protective tube 8 includes an intermediate protective tube 83 and end protective tubes 81 installed at the front and rear ends of the intermediate protective tube 83. The end protective tube 81 is a conical structure. A plurality of rollers 84 for reducing friction are also arranged inside the intermediate protective tube 83. The outer side of the end sleeve 81 is provided with reinforcing ribs. The end sleeve 81 is composed of a plurality of end pieces 82 for easy disassembly of the end sleeve 81. A plurality of rollers 84 for reducing friction are rotatably mounted on the inner side of the middle sleeve 83.

[0040] The water pipe support 5 includes a mounting frame hoisted on the side template unit and water pipe supporting wheels evenly distributed on the mounting frame for supporting the water pipe; The belt conveyor mechanism 11 is used to convey materials. The belt conveyor mechanism 11 is installed on the working platform 3. A roller rotatably mounted on the working platform 3 is provided below the belt conveyor mechanism 11. The belt conveyor mechanism 11 is arranged on the roller so that the belt conveyor mechanism 11 can slide relatively on the working platform 3. Due to the arrangement of the roller, the belt conveyor mechanism 11 is relatively independent from the lining trolley. During the movement of the lining trolley, the material transportation of the belt conveyor mechanism 11 can be carried out at the same time, which prevents the situation that the process connection is not in place and affects the construction progress.

[0041] Although this specification has shown and described a plurality of embodiments of the present invention, it is obvious to those skilled in the art that such embodiments are provided by way of example only. Those skilled in the art will think of many changes, modifications and alternatives without departing from the thought and spirit of the present invention. It should be understood that in the process of practicing the present invention, various alternatives to the embodiments of the present invention described herein may be adopted. The attached claims are intended to define the scope of protection of the present invention, and therefore cover the modular composition, equivalent or alternatives within the scope of protection of these claims.

Claims

1. A cross-section adjustable TBM synchronous lining trolley, comprising: Two door beams (1); A working platform (3) is installed on the top between the two door beams (1), and the length direction of the working platform (3) is defined as the front-to-back direction; A walking mechanism (12) is mounted on the bottom of the door beam (1), and the walking mechanism (12) is used to drive the trolley to move; It is characterized by further comprising: Fabric Track (4); A retractable mechanism, used to support the arch top mold unit (6) or the top mold supplementary unit (7); A cable bracket (2) mounted on the outside of the door beam (1), the cable bracket (2) comprising a base (23) and a V-shaped wheel (22) rotatably mounted on the base (23), the V-shaped wheel (22) being used to reduce friction with the cable (24); An air duct protective tube (8) is installed above the material distribution track (4), the air duct protective tube (8) is arranged along the front-to-back direction, the air duct protective tube (8) comprises an intermediate protective tube (83) and end protective tubes (81) installed at the front and rear ends of the intermediate protective tube (83), the end protective tube (81) is a conical structure, and a plurality of rollers (84) for reducing friction are also arranged inside the intermediate protective tube (83); A water pipe support (5), the water pipe support (5) comprising a mounting frame hoisted on a side template unit and water pipe supporting wheels evenly distributed on the mounting frame for supporting the water pipe.

2. The cross-section adjustable TBM synchronous lining trolley according to claim 1 is characterized in that: The material distribution track (4) is fixedly mounted on the working platform (3) and extends along the front-rear direction of the working platform (3); the material distribution track (4) is arranged on one side of the working platform (3); and the material distribution track (4) is used to guide the material distribution trolley.

3. The cross-section adjustable TBM synchronous lining trolley according to claim 1 is characterized in that: The retracting and releasing mechanism comprises a first hydraulic cylinder and a second hydraulic cylinder arranged on the left and right sides of the cloth track (4); support rods are fixedly mounted on the tops of the first hydraulic cylinder and the second hydraulic cylinder; the second hydraulic cylinder is slidably mounted on the working platform (3) in the left-right direction; and an adjusting screw for driving the second hydraulic cylinder to slide in the left-right direction is also mounted on the working platform (3).

4. The cross-section adjustable TBM synchronous lining trolley according to claim 1 is characterized in that: A belt conveyor mechanism (11) is slidably mounted on the working platform (3), and the belt conveyor mechanism (11) is used to convey materials.

5. The cross-section adjustable TBM synchronous lining trolley according to claim 1 is characterized in that: The cable bracket (2) further comprises a rib plate (21), wherein the rib plate (21) is connected to the door beam (1) via bolts, and the base (23) is fixedly connected to the rib plate (21), and the base (23) is arranged at intervals in the up-down direction.

6. The cross-section adjustable TBM synchronous lining trolley according to claim 1 is characterized in that: The outer side surface of the end casing (81) is provided with reinforcing ribs.

7. The cross-section adjustable TBM synchronous lining trolley according to claim 6 is characterized in that: The end casing (81) is composed of a plurality of end pieces (82) to facilitate disassembly of the end casing (81).

8. The cross-section adjustable TBM synchronous lining trolley according to claim 6 or 7, characterized in that: A plurality of rollers (84) for reducing friction are rotatably mounted inside the middle protective tube (83).

9. The cross-section adjustable TBM synchronous lining trolley according to claim 4 is characterized in that: A roller rotatably mounted on the working platform (3) is provided below the belt conveying mechanism (11); the belt conveying mechanism (11) is arranged on the roller so that the belt conveying mechanism (11) can slide relatively on the working platform (3).

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