Stripping type arch pouring trolley

Abstract

The utility model discloses a crossing type arch pouring trolley, which relates to the technical field of tunnel construction, and comprises a driven wheel set, a guide rail, a side truss, a driving wheel set and a side support frame, the bottom of the side truss is respectively hinged with the driven wheel set and the driving wheel set, the top of the side truss is fixedly connected with the side support frame, and the driven wheel set and the driving wheel set abut against the guide rail; adjusting supports are installed at the two ends of the upper surface of the side supporting frame, a jacking frame is installed in the middle of the upper surface of the side supporting frame, the tops of the adjusting supports are fixedly connected with a top longitudinal beam, the lower surface of the top longitudinal beam is fixedly connected with the upper surface of a middle supporting column, and the lower surface of the middle supporting column is fixedly connected with the upper surface of a middle longitudinal beam. The jacking frame abuts against the lower surface of the middle longitudinal beam. A formwork supporting frame is fixedly installed on the upper surface of the top longitudinal beam, and a movable block formwork is installed on the top of the formwork supporting frame. The spanning type arch pouring trolley can improve the construction efficiency and reduce the construction cost.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a straddling arch casting trolley. Background Art

[0002] In recent years, in order to ensure the stability of the side walls of the foundation pit and the safety of adjacent buildings, the lining construction of open-cut tunnel construction projects has been carried out under limited site conditions. After two-level slope excavation, vertical excavation needs to take support and reinforcement measures for the side walls of the foundation pit, that is, to set up a foundation pit support structure. During the process of the main structure being constructed from bottom to top, the horizontal supports are removed layer by layer in the required sequence to complete the structural system conversion, and finally backfill the soil outside the structure and restore the surface state.

[0003] The construction of the main structure is usually completed by manually erecting a full-frame scaffolding and assembling and disassembling a combined formwork. The manual assembly and disassembly is labor-intensive, has high intensity, a low degree of mechanization, and high safety risks.

[0004] How to develop a spanning arch casting trolley that adopts a spanning structural design, avoids the need to change supports at different heights during the travel and support system conversion process, and realizes the casting construction of the arch secondary lining has become a technical problem that needs to be urgently solved by technical personnel in this field. Utility Model Content

[0005] The utility model aims to provide a straddling arch casting trolley to solve the problems listed in the background technology.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] The utility model discloses a straddling arch casting trolley, comprising a driven wheel group, a guide rail, a side truss, a driving wheel group and a side support frame, wherein the bottom of the side truss is respectively hinged to the driven wheel group and the driving wheel group, the top of the side truss is fixedly connected to the side support frame, and the driven wheel group and the driving wheel group abut against the guide rail; both ends of the upper surface of the side support frame are installed with adjustment supports, and the middle part of the upper surface of the side support frame is installed with a jacking frame, the top of the adjustment support is fixedly connected to the top longitudinal beam, the lower surface of the top longitudinal beam is fixedly connected to the upper surface of the middle support column, the lower surface of the middle support column is fixedly connected to the upper surface of the middle longitudinal beam, and the jacking frame abuts against the lower surface of the middle longitudinal beam;

[0008] A template support frame is fixedly installed on the upper surface of the top longitudinal beam, and a movable block template is installed on the top of the template support frame.

[0009] Preferably, a first crossbeam is fixedly installed between opposite surfaces of the two side trusses, a first operating platform is installed on the first crossbeam, and the first operating platform is hinged to the first ladder.

[0010] Preferably, support legs are installed on the lower surface of the side truss.

[0011] Preferably, a second cross beam is fixedly installed between two opposite surfaces of the middle longitudinal beam. A second operation platform is installed on the second cross beam, and the second operation platform is hinged to a second climbing ladder.

[0012] Preferably, the adjusting support is hinged to the movable block formwork through a support screw rod on the side wall of the jacking frame.

[0013] Preferably, a top cross beam is installed between opposite surfaces of the top longitudinal beam. A third operation platform is installed on the side wall of the top cross beam, and the third operation platform is hinged to a third climbing ladder.

[0014] Preferably, the adjusting support includes an inner guide post, a hydraulic cylinder, and a guide sleeve. The movable end of the hydraulic cylinder is fixedly connected to the inner bottom surface of the inner guide post, the fixed end of the hydraulic cylinder is fixedly connected to the guide sleeve, and the guide sleeve is movably sleeved on the outer peripheral surface of the inner guide post.

[0015] Preferably, the jacking frame includes a column. The bottom surface of the column is fixedly connected to the upper surface of the side support frame, and a jack is fixedly installed on the top surface of the column. The jack abuts against the lower surface of the middle longitudinal beam.

[0016] Compared with the prior art, the beneficial technical effects of the present utility model are as follows:

[0017] A leapfrog arch pouring trolley of the present utility model completes the leapfrog travel for avoiding steel replacement struts of different heights and the reasonable layout and conversion of the overall support system of the arch pouring trolley by sequentially contracting and extending the adjusting support and the jacking frame during the traveling process to meet the construction requirements. Moreover, during the traveling process of the arch pouring trolley, the steel replacement struts do not need to be removed, which can greatly improve the safety and construction efficiency during pouring. Further, the whole trolley travels on the guide rail by the cooperation of the driving wheel set and the driven wheel set, and by analogy to the next pouring station, the use of assembled formwork and support structure for overall traveling for pouring construction can greatly improve the construction efficiency and reduce the construction cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following further describes the present utility model with reference to the accompanying drawings.

[0019] Figure 1 It is a side view schematic diagram of a leapfrog arch pouring trolley of the present utility model;

[0020] Figure 2 It is a front view schematic diagram of a leapfrog arch pouring trolley of the present utility model (after concrete pouring);

[0021] Figure 3 Front view schematic diagram of a leapfrog arch pouring trolley of the present utility model (before concrete pouring);

[0022] Figure 4 Stereo schematic diagram of a leapfrog arch pouring trolley of the present utility model (before concrete pouring);

[0023] Figure 5 Front view schematic diagram of the adjusting support of the present utility model;

[0024] Figure 6 Side view schematic diagram of the adjusting support of the present utility model;

[0025] Figure 7 Schematic diagram of the lifting frame of the present utility model.

[0026] Explanation of reference numerals in the drawings: 1, driven wheel set; 2, guide rail; 3, support leg; 4, side truss; 5, driving wheel set; 6, first ladder; 7, first operation platform; 8, side support frame; 9, adjusting support; 901, inner guide post; 902, hydraulic cylinder; 903, guide sleeve; 10, lifting frame; 1001, jack; 1002, column; 11, middle longitudinal beam; 12, middle support column; 13, top longitudinal beam; 14, formwork support frame; 15, support screw rod; 16, movable block formwork; 17, first cross beam; 18, second ladder; 19, second cross beam; 20, second operation platform; 21, third ladder; 22, top cross beam; 23, third operation platform; 24, steel replacement strut. Detailed implementation manners

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0028] As Figure 1-7As shown in the figure, a spanning arch pouring trolley includes a driven wheel set 1, a guide rail 2, side trusses 4, a driving wheel set 5 and side support frames 8. The bottom parts of the side trusses 4 are respectively hinged to the driven wheel set 1 and the driving wheel set 5, which can adapt to the slope change at the bottom of the tunnel and improve the environmental adaptability. The top of the side trusses 4 is fixedly connected to the side support frames 8 through bolt assemblies. The driven wheel set 1 and the driving wheel set 5 are in contact with the guide rail 2 and can drive the arch pouring trolley to move along the guide rail under the drive of the driving wheel set. The pre-laid guide rail ensures the accuracy of the arch pouring trolley during the movement and pouring process. At both ends of the upper surface of the side support frame 8, adjusting supports 9 are installed, and a jacking frame 10 is installed in the middle of the upper surface of the side support frame 8. The top of the adjusting support 9 is fixedly connected to the top longitudinal beam 13. The lower surface of the top longitudinal beam 13 is fixedly connected to the upper surface of the middle support column 12. The lower surface of the middle support column 12 is fixedly connected to the upper surface of the middle longitudinal beam 11. The jacking frame 10 is in contact with the lower surface of the middle longitudinal beam 11. When the arch pouring trolley moves along the guide rail and encounters the obstruction of the steel replacement strut 24 in the tunnel, without removing the steel replacement strut 24, the arch pouring trolley can cross the steel replacement strut 24 by successively raising and lowering the adjusting support and the jacking frame until it reaches the next construction position.

[0029] On the upper surface of the top longitudinal beam 13, a formwork support frame 14 is fixedly installed, and a movable block formwork 16 is installed on the top of the formwork support frame 14. During the construction process, construction workers can set up the movable formwork according to the building and design requirements, which is convenient for pouring concrete for the tunnel arch.

[0030] Specifically, a first cross beam 17 is fixedly installed between the opposite surfaces of the two side trusses 4. The first cross beam is connected to the side trusses to form a portal frame structure, which greatly improves the stability during support and movement. A first operation platform 7 is installed on the first cross beam 17, and the first operation platform 7 is hinged to a first ladder 6.

[0031] Specifically, support legs 3 are installed on the lower surface of the side trusses 4. The support legs can contact and disengage from the tunnel ground by rotating, which improves the stability during support and is convenient and fast during the support process.

[0032] Specifically, a second cross beam 19 is fixedly installed between the two opposite surfaces of the middle longitudinal beam 11. A second operation platform 20 is installed on the second cross beam 19, and the second operation platform 20 is hinged to a second ladder 18.

[0033] Specifically, the adjusting support 9 is hinged to the side wall of the jacking frame 10 through a support screw rod 15 and the movable block formwork 16. By adjusting the support screw rod, the opening and contraction angles of the movable block formwork can be controlled to meet the design and pouring requirements of the tunnel arch part.

[0034] Specifically, a top cross beam 22 is installed between the opposite surfaces of the top longitudinal beam 13. A third operation platform 23 is installed on the side wall of the top cross beam 22. The third operation platform 23 is hinged to the third climbing ladder 21. A plurality of formwork support frames are installed on the top cross beam, and the heights of the formwork support frames decrease sequentially from the middle to both sides, so as to meet the requirements of the tunnel arch part when the movable block formwork is supported.

[0035] Specifically, the adjusting support 9 includes an inner guide column 901, a hydraulic cylinder 902 and a guide sleeve 903. The inner bottom surface of the inner guide column 901 is fixedly connected to the movable end of the hydraulic cylinder 902. The fixed end of the hydraulic cylinder 902 is fixedly connected to the guide sleeve 903, and the guide sleeve 903 is movably sleeved on the outer peripheral surface of the inner guide column 901. When avoiding the steel replacement support 24 during the traveling process, the inner guide column is separated from the side support frame 8, and the hydraulic cylinder 902 contracts, so that the arch pouring trolley can pass through the steel replacement support 24 without removing the steel replacement support 24. After passing through the steel replacement support 24, the hydraulic cylinder 902 extends, so that the inner guide column contacts the side support frame and is fixed by a bolt assembly, and the support operation continues.

[0036] Specifically, the jacking frame 10 includes a column 1002. The bottom surface of the column 1002 is fixedly connected to the upper surface of the side support frame 8. A jack 1001 is fixedly installed on the top surface of the column 1002. The jack 1001 abuts against the lower surface of the middle longitudinal beam 11. The column 1002 and the side support frame 8 are connected by bolts. When it is necessary to pass through the steel replacement support 24, the column 1002 is separated from the side support frame 8 to facilitate passing through the steel replacement support 24 during the traveling process. After passing through, the column 1002 and the side support frame 8 are fixedly connected by a bolt assembly again, and a jack 1001 is placed between the top of the column 1002 and the middle longitudinal beam 11. Further, the jack 1001 abuts against the lower surface of the middle longitudinal beam 11 and cooperates with the adjusting support 9 to complete the support operation, and at the same time, the avoidance operation of the steel replacement support 24 is completed during the traveling process.

[0037] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or seal including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or seal.

[0038] The above-described embodiments are only descriptions of the preferred modes of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A straddling arch casting trolley, comprising a driven wheel group (1), a guide rail (2), a side truss (4), a driving wheel group (5) and a side support frame (8), wherein the bottom of the side truss (4) is hinged to the driven wheel group (1) and the driving wheel group (5) respectively, the top of the side truss (4) is fixedly connected to the side support frame (8), and the driven wheel group (1) and the driving wheel group (5) are in contact with the guide rail (2); characterized in that: Adjustment supports (9) are installed at both ends of the upper surface of the side support frame (8), and a lifting frame (10) is installed in the middle of the upper surface of the side support frame (8). The top of the adjustment support (9) is fixedly connected to the top longitudinal beam (13), the lower surface of the top longitudinal beam (13) is fixedly connected to the upper surface of the middle support column (12), the lower surface of the middle support column (12) is fixedly connected to the upper surface of the middle longitudinal beam (11), and the lifting frame (10) is in contact with the lower surface of the middle longitudinal beam (11); A template support frame (14) is fixedly mounted on the upper surface of the top longitudinal beam (13), and a movable block template (16) is mounted on the top of the template support frame (14).

2. The leaping arch casting trolley according to claim 1, characterized in that: A first crossbeam (17) is fixedly installed between the opposite surfaces of the two side trusses (4), a first operating platform (7) is installed on the first crossbeam (17), and the first operating platform (7) is hinged to the first ladder (6).

3. The leaping arch casting trolley according to claim 1, characterized in that: The lower surface of the side truss (4) is mounted with a supporting leg (3).

4. The leaping arch casting trolley according to claim 1, characterized in that: A second crossbeam (19) is fixedly installed between two opposite surfaces of the middle longitudinal beam (11), a second operating platform (20) is installed on the second crossbeam (19), and the second operating platform (20) is hinged to the second ladder (18).

5. The leaping arch casting trolley according to claim 1, characterized in that: The side wall of the adjustment support (9) and the lifting frame (10) is hingedly connected to the movable block template (16) via a support screw rod (15).

6. The leaping arch casting trolley according to claim 1, characterized in that: A top crossbeam (22) is installed between opposite surfaces of the top longitudinal beam (13), a third operating platform (23) is installed on the side wall of the top crossbeam (22), and the third operating platform (23) is hinged to the third ladder (21).

7. The leaping arch casting trolley according to claim 1, characterized in that: The adjustment support (9) comprises an inner guide column (901), a hydraulic cylinder (902) and a guide sleeve (903); the inner bottom surface of the inner guide column (901) is fixedly connected to the movable end of the hydraulic cylinder (902); the fixed end of the hydraulic cylinder (902) is fixedly connected to the guide sleeve (903); and the guide sleeve (903) is movably sleeved on the outer peripheral surface of the inner guide column (901).

8. The leaping arch casting trolley according to claim 1, characterized in that: The lifting frame (10) comprises a column (1002), the bottom surface of the column (1002) is fixedly connected to the upper surface of the side support frame (8), and a jack (1001) is fixedly installed on the top surface of the column (1002), and the jack (1001) is in contact with the lower surface of the middle longitudinal beam (11).

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