A lining jumbo for easily changing the lining section

Abstract

The utility model discloses an easily change lining section lining jumbo, its formwork system is by top template, adjusting template, transition template, connecting template and side template and is composed, and the both ends of top template are respectively with the upper end of a group of adjusting templates through bolt connection, and the lower end of adjusting template is with the upper end of transition template through bolt connection, and the lower end of transition template is with the upper end of connecting template hinged, and the lower end of connecting template is with the upper end of side template hinged, and the telescopic suspension rod is bolted between two groups of connecting templates, the both ends of top template downside are provided with end telescopic stand, and the upper end of end telescopic stand is with top template bolt connection, and the lower end still is with the fixed section of telescopic suspension rod bolt connection. The utility model overcomes the problem of heavy lining section change process in the construction of the existing railway tunnel variable section lining jumbo, and the lining quality is poor due to the low formwork stiffness and the large deformation during lining, and also solves the problem of the narrow upper construction operation space of the variable section jumbo.

Description

Technical Field

[0001] This utility model relates to a tunnel concrete forming equipment, and more particularly to a trolley for lining tunnels with multiple cross sections. Background Technology

[0002] In the construction of variable cross-section lining for single and double track railway tunnels, the traditional methods involved manually erecting platforms to support steel arch frames and hanging small formwork on the outside, or disconnecting the existing formwork on the trolley and adding widening blocks, or hanging steel arch frames and small formwork on the existing trolley. The formwork replacement process was cumbersome, and the replaced formwork had large errors and low rigidity, resulting in low construction efficiency and poor construction quality. A more advanced variable cross-section lining trolley is needed to meet higher construction efficiency and quality requirements.

[0003] To address the above difficulties, some patents have proposed new technical solutions, such as the "Railway Modular Variable Cross-Section Trolley" with patent number CN2017203768089, authorized on November 28, 2017. This patent adopts the following technical solution: A railway modular variable cross-section trolley includes a trolley mounted on a track. The left and right sides of the trolley are connected to side templates via length-changing screw sleeves. A small bottom arc mold is hinged to the bottom of the side template. Two adjustable curvature templates are connected between the left and right side templates, and the two adjustable curvature templates are connected and fixed by a connecting plate. A horizontally oriented telescopic crossbeam is provided on the lower side of the adjustable curvature template. The telescopic crossbeam is installed on the upper longitudinal beams on the left and right sides. The upper longitudinal beams on the left and right sides are symmetrically arranged on the trolley. The inner sides of the upper longitudinal beams on the left and right sides are respectively connected to one end of a horizontal thrust cylinder, and the other end of the horizontal thrust cylinder is connected to the trolley.

[0004] Although the above scheme makes the process of changing the cross section of the trolley easier, the "adjustable curvature template" has defects such as large deflection and poor stiffness, resulting in large deformation during the lining process, and therefore has not been widely used. Summary of the Invention

[0005] The purpose of this utility model is to overcome the above-mentioned problems existing in the prior art and provide a lining trolley that is easy to change the lining cross-section. This utility model overcomes the problems of cumbersome cross-section changing procedures and poor lining quality caused by large deformation during lining due to low template rigidity in the construction of existing railway tunnel variable cross-section lining trolleys. At the same time, it also solves the problems of small construction and operation space on the upper part of the trolley.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A lining trolley with easily changeable lining cross-section includes a template system, characterized in that it further includes telescopic suspension rods and end telescopic columns. The template system consists of a top template, an adjusting template, a transition template, a connecting template, and side templates. The two ends of the top template are respectively bolted to the upper ends of a set of adjusting templates. The lower end of the adjusting template is bolted to the upper end of the transition template. The lower end of the transition template is hinged to the upper end of the connecting template. The lower end of the connecting template is hinged to the upper end of the side template. The two sets of connecting templates are respectively bolted to the two telescopic sections of the telescopic suspension rods. End telescopic columns are provided at both ends of the lower side of the top template. The upper end of the end telescopic columns is bolted to the top template, and the lower end is also bolted to the fixed section of the telescopic suspension rod.

[0008] The telescopic suspension includes a fixed section and two telescopic sections located on both sides of the fixed section. The two ends of the fixed section are respectively bolted to the trolley gantry by two longitudinal connecting beams of the fixed section. One end of the telescopic section is telescopically set inside the fixed section, and the other end is bolted to the connecting template. The telescopic section is slidably set on the trolley gantry by the longitudinal connecting beams of the telescopic section.

[0009] The telescopic suspension rod is extended and retracted by the template lateral adjustment cylinder. One end of the template lateral adjustment cylinder is hinged to the longitudinal connecting beam of the telescopic section, and the other end is hinged to the trolley gantry.

[0010] The end telescopic column is driven to extend and retract by the template vertical adjustment cylinder. The end telescopic column includes a fixed column and a telescopic column slidably set in the fixed column. The fixed column is bolted to the fixed section of the telescopic suspension rod, and the telescopic column is bolted to the top template. One end of the template vertical adjustment cylinder is hinged to the fixed column, and the other end is hinged to the telescopic column or hinged to the middle of the transition template.

[0011] The lower side of the top formwork is also provided with a central column and a central column adjustment block. The upper end of the central column is bolted to the top formwork through the central column adjustment block, and the lower end is bolted to the fixed section of the telescopic suspension rod.

[0012] The transition template is provided with side columns and side column adjustment blocks on its lower side. The upper end of the side column is bolted to the transition template through the side column adjustment block, and the lower end is bolted to the telescopic section of the telescopic suspension rod.

[0013] The telescopic suspension consists of 9 sets. The upper part of the fixed section of each of the front and rear ends of the trolley is bolted to an end telescopic column, and the upper part of the fixed section of the remaining 7 sets of telescopic suspension is bolted to a central column. The lower two sides of the fixed section of the telescopic suspension are bolted to the longitudinal connecting beams, and the telescopic section of each set of telescopic suspension is bolted to a side column.

[0014] The end telescopic columns consist of four pieces. The upper ends are bolted to the four corners of the top template, and the lower ends are respectively connected to the fixed sections of the telescopic suspension rods at the front and rear ends of the trolley. The lower ends of the telescopic columns are also locked to the fixed columns and telescopic columns by fixing pins.

[0015] There are 14 central columns, with the upper ends bolted to the central column adjusting block and the lower ends connected to the fixed sections of 7 sets of telescopic suspension rods located in the middle of the trolley.

[0016] The side columns consist of 18 pieces, with the upper end bolted to the side column adjustment block and the lower end connected to the telescopic sections on both sides of 9 sets of telescopic suspension rods.

[0017] The advantages of using this utility model are:

[0018] I. The structure of this utility model, which uses a transition template connected to the telescopic suspension rod, facilitates precise and convenient adjustment of the side template position during template changes, making it easy to change the lining cross-section. At the same time, it avoids a large amount of template disassembly work during cross-section adjustment, greatly shortening the template change time and improving construction efficiency.

[0019] Second, based on the characteristic that the side formwork shape remains unchanged in the outline of a multi-section railway tunnel, only the top formwork shape is changed, this utility model adopts a multi-set template with transition template to fit the top formwork. The error after shape change is small and the change method is simple. Each set of templates is connected by hinges and bolts, and is supported by the central platform, side platform and telescopic suspension rod. The template stress structure is reasonable, the deformation during lining construction is small, and the construction quality is high.

[0020] Third, the cross-section of the trolley in this utility model is changed by means of telescopic columns and hydraulic cylinders in a mechanized manner, without the need for external mechanical equipment to adjust the template. When the trolley changes the cross-section, there is no need to interrupt traffic in the tunnel, which reduces the intensity of manual labor and greatly improves the safety of construction.

[0021] Fourth, this utility model ensures that the width between the central columns remains unchanged when the cross-section is changed, thus maintaining the stability of the middle area at the top of the trolley. This provides a stable space, which is beneficial for the installation of the trolley's functional modules. It also provides a larger construction work space, solving the problem of limited construction work space on the upper part of the trolley in variable cross-section trolleys and improving construction efficiency. Attached Figure Description

[0022] Figure 1 Schematic diagram I of the trolley's cross-section transformation;

[0023] Figure 2 Schematic diagram of the trolley's cross-section (II);

[0024] Figure 3 This is a schematic diagram of the trolley after the cross-section has been transformed;

[0025] Figure 4 This is the front view of the template system;

[0026] Figure 5 This is a schematic diagram of a telescopic suspension rod;

[0027] Figure 6 This is a side view of the trolley;

[0028] Figure 7 for Figure 6 Section II in the middle;

[0029] Figure 8 for Figure 6 Section II-II is shown in the diagram.

[0030] The markings in the diagram are as follows: 1. End telescopic column, 2. End telescopic column fixing pin, 3. Middle column adjusting block, 4. Middle column, 5. Telescopic suspension rod, 6. Longitudinal connecting beam, 7. Side column adjusting block, 8. Side column, 9. Formwork vertical adjustment cylinder, 10. Formwork lateral adjustment cylinder, 11. Gantry, 12. Formwork jack support system, 13. Lateral demolding cylinder, 14. Trolley lifting and translation mechanism, 15. Trolley traveling mechanism, 16. Top formwork, 17. Adjusting formwork, 18. Transition formwork, 19. Connecting formwork, 20. Side formwork, 21. Telescopic suspension rod locking pin, 22. Fixed section, 23. Telescopic section. Detailed Implementation

[0031] This embodiment will be described in detail with reference to the accompanying drawings, such as... Figure 1-8 As shown:

[0032] A lining trolley with easily changeable lining cross-section includes a template system, end telescopic columns 1, end telescopic column fixing pins 2, middle column adjusting blocks 3, middle columns 4, telescopic suspension rods 5, longitudinal connecting beams 6, side column adjusting blocks 7, side columns 8, template vertical adjusting cylinders 9, template lateral adjusting cylinders 10, gantry system, template jack support system 12, lateral demolding cylinders 13, trolley lifting and translation mechanism 14, and trolley traveling mechanism 15.

[0033] The formwork system consists of one set of top formwork 16, two sets of adjusting formwork 17, two sets of transition formwork 18, two sets of connecting formwork 19, and two sets of side formwork 20. The top formwork 16 is bolted to the upper ends of one set of adjusting formwork 17 at both ends. Four sets of end telescopic columns 1 and fourteen sets of middle column adjusting blocks 3 and middle columns 4 are also bolted to the lower side of the top formwork 16. The upper end of each transition formwork 18 is bolted to the lower end of one set of adjusting formwork 17, and the lower end is hinged to the upper end of one set of connecting formwork 19. Nine sets of side column adjusting blocks 7 and side columns 8 are also bolted to the lower side of each transition formwork 18. The lower end of each connecting formwork 19 is hinged to the upper end of one set of side formwork 20. The two sets of connecting templates 19 are also connected by bolts to nine sets of telescopic suspension rods 5; the upper end of each set of end telescopic columns 1 is bolted to the top template 16, and the lower end is also bolted to the fixed section 22 of a set of telescopic suspension rods 5; each set of end telescopic columns 1 is also locked by end telescopic column fixing pins 2; the upper end of each set of middle columns 4 is bolted to the top template 16 through middle column adjusting blocks 3, and the lower end is also bolted to the fixed section 22 of a set of telescopic suspension rods 5; the telescopic sections 23 of each set of telescopic suspension rods 5 are connected by bolts. It is attached to a set of connecting templates 19, and the lower side is also slidably set on the crossbeam of the gantry 11 through the longitudinal connecting beam 6. For example, the crossbeam of the gantry trolley is used as a guide rail, and longitudinal limit blocks are set at the corresponding positions of the longitudinal connecting beam connected to the telescopic section 23, so that the structure can slide laterally with the crossbeam of the gantry trolley as a guide rail; the upper end of the side column 8 is bolted to the transition template 18 through the side column adjusting block 7, and the lower end is bolted to the telescopic section 23 of the telescopic suspension rod 5; the two ends of the template vertical adjusting cylinder 9 are respectively hinged to the end extension The two ends of the telescopic column 1 can be used to extend and retract the end telescopic column 1. When the transition template 18 needs to be rotated, the upper end of the vertical adjustment cylinder 9 can also be hinged to the middle of the transition template 18, and the transition template 18 can be rotated through it. The two ends of the lateral adjustment cylinder 10 are respectively hinged to the two sets of longitudinal connecting beams 6 and the gantry 11 connected to the telescopic section 23 of the telescopic suspension rod 5. The upper part of the other two sets of longitudinal connecting beams is bolted to the fixed section 22 of the 9 sets of telescopic suspension rods 5, and the lower part is bolted to the gantry 11.

[0034] The template system consists of one set, comprising: a top template 16 bolted at both ends to an adjustable template; a set of adjustable templates 17 bolted at both ends to the top template 16 and the transition template 18 (the number increases according to the number of cross-section changes); two sets of transition templates 18 bolted at the upper end to the adjustable template 17 and hinged at the lower end to the connecting template 19; two sets of connecting templates 19 hinged at the upper end to the transition template 18 and hinged at the lower end to the side templates 20; and two sets of side templates 20 hinged at the upper end to the connecting template 19. The top template 16 is also bolted to the lower side with four sets of end telescopic columns 1 and fourteen sets of middle column adjusting blocks 3; each transition template 18 is bolted to the lower side with nine sets of side column adjusting blocks 7; each connecting template 19 is also bolted to nine sets of telescopic suspension rods 5; and each side template 20 is also hinged to two lateral demolding cylinders 13 and a template jack support system 12.

[0035] The end telescopic column 1 is driven to extend and retract by the template vertical adjustment cylinder 9. The end telescopic column 1 includes a fixed column and a telescopic column slidably set in the fixed column. The fixed column is bolted to the fixed section 22 of the telescopic suspension rod 5, and the telescopic column is bolted to the top template 16. One end of the template vertical adjustment cylinder 9 is hinged to the fixed column, and the other end is hinged to the telescopic column or to the middle of the transition template. Further, there are 4 end telescopic columns 1. The upper end is bolted to the four corners of the top template 16, and the lower end is respectively connected to the fixed section 22 of the two sets of telescopic suspension rods 5 located at the front and rear ends of the trolley. Each set of end telescopic columns 1 is also locked by end telescopic column fixing pins 2. There are 4 end telescopic column fixing pins 2, each fixed in the middle of a set of end telescopic columns 1, for locking the end telescopic column 1.

[0036] The central column adjustment block 3 is divided into multiple groups according to the number of cross-sections to be changed, with 14 pieces in each group. The upper end of each piece is bolted to the connecting seat of the top template 16 except for the four corners, and the lower end is bolted to the upper end of the central column 4. When changing the cross-section, the central column adjustment block 3 corresponding to the cross-section is replaced. There are 14 central columns 4, with the upper end bolted to the central column adjustment block 3, and the lower end respectively connected to the fixed section 22 of the 7 sets of telescopic suspension rods 5 located in the middle of the trolley.

[0037] The telescopic suspension 5 includes a fixed section 22 and two telescopic sections 23 located on both sides of the fixed section 22. The telescopic sections 23 can be locked to the fixed section 22 by telescopic suspension locking pins 21. The two ends of the fixed section 22 are respectively bolted to the transverse beam of the trolley gantry 11 by two longitudinal connecting beams of the fixed section 22. One end of the telescopic section 23 is telescopically set inside the fixed section 22, and the other end is bolted to the connecting template 19. The telescopic section 23 is slidably set on the transverse trolley gantry 11 through the longitudinal connecting beam of the telescopic section 23. Furthermore, the telescopic suspension rods 5 consist of 9 groups. The upper part of the fixed section 22 of each of the front and rear ends is bolted with 4 groups of end telescopic columns 1. The upper fixed section 22 of the remaining 7 groups is bolted with 14 middle columns 4. The lower part of both sides of the fixed section 22 is also bolted with a longitudinal connecting beam 6, which is bolted to the gantry 11. The telescopic section 23 on both sides of each group of telescopic suspension rods 5 is bolted with a side column 8. The telescopic section 23 of each of the 9 groups of telescopic suspension rods 5 is also bolted with a connecting template 19.

[0038] There are four longitudinal connecting beams 6, and two fixed sections 22 of the telescopic suspension rods 5 are provided. The upper part of these two longitudinal connecting beams 6 is bolted to the lower part of the fixed section 22 of the nine sets of telescopic suspension rods 5, and the lower part is bolted to the gantry 11. There is one telescopic section 23 at each end of the fixed section 22. Longitudinal limiting blocks are provided at both ends of the longitudinal connecting beams corresponding to the positions of the gantry crossbeams of the trolley, so that the gantry crossbeams can be used as guide rails for lateral sliding. One end of the template lateral adjustment cylinder is hinged to the longitudinal connecting beam 6 of the telescopic section 23, and the other end is hinged to the gantry 11.

[0039] The side column adjustment block 7 is divided into multiple groups according to the number of cross-sections to be changed, with 18 pieces in each group. The upper end of each piece is bolted to the transition template 18, and the lower end is bolted to the upper end of the side column 8. When changing the cross-section, the side column adjustment block 7 of the corresponding cross-section is replaced. There are 18 side columns 8, with the upper end bolted to the side column adjustment block 7, and the lower end connected to the telescopic sections 23 on both sides of the 9 groups of telescopic suspension rods 5 respectively.

[0040] There are four vertical adjustment cylinders 9 for the template. Each cylinder is hinged at both ends to the ends of the end telescopic column 1, through which the end telescopic column 1 is extended and retracted. The upper end of each vertical adjustment cylinder 9 can also be removed and hinged to the middle of the transition template 18 when needed, through which the transition template 18 is rotated.

[0041] The gantry system consists of one set. Four lateral demolding cylinders 13 are hinged to both sides of the gantry 11. The gantry 11 is also hinged to a set of formwork jack support system 12. Four sets of trolley lifting and translation mechanisms 14 are installed at the four corners of the gantry 11. Two sets of trolley traveling mechanisms 15 are installed below the gantry. The formwork jack support system 12 is one set, hinged between the formwork system and the gantry system to transfer concrete pressure. There are four lateral demolding cylinders 13, one end of which is hinged to the side formwork 20 and the other end is hinged to the gantry system. There are four sets of trolley lifting and translation mechanisms 14, one set is installed at each of the four corners of the trolley gantry system. There are two sets of trolley traveling mechanisms 15, one set is installed on each side of the trolley.

[0042] The working principle of this utility model is as follows:

[0043] When the trolley needs to change the lining cross-section, first remove the adjusting template 17, remove the bolts between the top template 16 and the middle column adjusting block 3, remove the end telescopic column fixing pin 2, operate the template vertical adjusting cylinder 9 to lift the top template 16 to the required position, replace the corresponding middle column adjusting block 3, install the end telescopic column fixing pin 2, and hinge the template vertical adjusting cylinder 9 to the middle of the transition template 18. Remove the bolts between the transition template 18 and the side column adjusting block 7, remove the telescopic suspension rod fixing pin, operate the template vertical adjusting cylinder 9 to lift, and simultaneously operate the template lateral adjusting cylinder 10 to lift the side template outward and rotate the transition template to the required position. Replace the corresponding adjusting template 17 and side column adjusting block 7, install the telescopic suspension rod fixing pin, and then bolt the corresponding components. This completes the lining cross-section change operation of the trolley, and the lining construction of the new cross-section can then begin.

Claims

1. A lining jumbo for ease of changing the lining section, comprising a formwork system, characterised in that: It also includes telescopic suspension rods (5) and end telescopic columns (1). The template system consists of a top template (16), an adjusting template (17), a transition template (18), a connecting template (19), and a side template (20). The top template (16) is bolted to the upper ends of a set of adjusting templates (17) at both ends. The lower end of the adjusting template (17) is bolted to the upper end of the transition template (18). The lower end of the transition template (18) is hinged to the upper end of the connecting template (19). The lower end of the connecting template (19) is hinged to the upper end of the side template (20). The two sets of connecting templates (19) are bolted to the two telescopic sections (23) of the telescopic suspension rod (5). The top template (16) is provided with end telescopic columns (1) at both ends on the lower side. The upper end of the end telescopic column (1) is bolted to the top template (16), and the lower end is bolted to the fixed section (22) of the telescopic suspension rod (5).

2. A lining jumbo for easily changing the lining section according to claim 1, characterized in that: The telescopic suspension rod (5) includes a fixed section (22) and two telescopic sections (23) located on both sides of the fixed section (22). The two ends of the fixed section (22) are respectively bolted to the trolley gantry (11) through two longitudinal connecting beams of the fixed section (22). One end of the telescopic section (23) is telescopically set inside the fixed section (22), and the other end is bolted to the connecting template (19). The telescopic section (23) is slidably set on the trolley gantry (11) through the longitudinal connecting beam of the telescopic section (23).

3. The lining trolley with easily changeable lining cross-section according to claim 2, characterized in that: The telescopic suspension rod (5) is driven to extend and retract by the template lateral adjustment cylinder (10). One end of the template lateral adjustment cylinder (10) is hinged to the longitudinal connecting beam of the telescopic section (23), and the other end is hinged to the trolley gantry (11).

4. The lining trolley with easily changeable lining cross-section according to claim 3, characterized in that: The end telescopic column (1) is driven to extend and retract by the template vertical adjustment cylinder (9). The end telescopic column (1) includes a fixed column and a telescopic column that is slidably set in the fixed column. The fixed column is bolted to the fixed section (22) of the telescopic suspension rod (5), and the telescopic column is bolted to the top template (16). One end of the template vertical adjustment cylinder (9) is hinged to the fixed column, and the other end is hinged to the telescopic column or to the middle of the transition template (18).

5. The lining trolley with easily changeable lining cross-section according to claim 4, characterized in that: The top template (16) is also provided with a central column (4) and a central column adjusting block (3) on the lower side. The upper end of the central column (4) is bolted to the top template (16) through the central column adjusting block (3), and the lower end is bolted to the fixed section (22) of the telescopic suspension rod (5).

6. The lining trolley with easily changeable lining cross-section according to claim 5, characterized in that: The transition template (18) is provided with a side column (8) and a side column adjustment block (7) on the lower side. The upper end of the side column (8) is bolted to the transition template (18) through the side column adjustment block (7), and the lower end is bolted to the telescopic section (23) of the telescopic suspension rod (5).

7. The lining trolley with easily changeable lining cross-section according to claim 6, characterized in that: The telescopic suspension rods (5) consist of 9 sets. The upper part of the fixed section (22) of each of the front and rear ends of the trolley is bolted to the end telescopic column (1), and the upper part of the fixed section (22) of the remaining 7 sets of telescopic suspension rods (5) is bolted to the middle column (4). The lower sides of the fixed section (22) of the telescopic suspension rods (5) are bolted to the longitudinal connecting beam (6), and the telescopic section (23) of each set of telescopic suspension rods (5) is bolted to the side column (8).

8. The lining trolley with easily changeable lining cross-section according to claim 7, characterized in that: The end telescopic columns (1) consist of 4 columns. The upper ends are bolted to the four corners of the top template (16), and the lower ends are respectively connected to the fixed sections (22) of the telescopic suspension rods (5) at the front and rear ends of the trolley. The lower ends of the telescopic columns are also locked to the fixed columns and telescopic columns by fixing pins.

9. The lining trolley with easily changeable lining cross-section according to claim 8, characterized in that: The central column (4) consists of 14 columns, with the upper end bolted to the central column adjusting block (3) and the lower end connected to the fixed section (22) of the 7 sets of telescopic suspension rods (5) located in the middle of the trolley.

10. The lining trolley with easily changeable lining cross-section according to claim 9, characterized in that: The side columns (8) consist of 18 columns, with the upper end bolted to the side column adjustment block (7) and the lower end connected to the telescopic sections (23) on both sides of 9 sets of telescopic suspension rods (5).

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