Supporting trolley for tunnel construction

Abstract

The utility model discloses a supporting trolley for tunnel construction, and relates to the technical field of tunnel construction equipment. A supporting trolley for tunnel construction comprises a chassis support, a supporting mechanism and a moving mechanism, wherein the supporting mechanism and the moving mechanism are arranged on the chassis support. Wherein the supporting mechanism comprises a supporting shed frame, the moving mechanism comprises a moving wheel set and a driving assembly, the moving wheel set and the driving assembly are arranged on the bottom side of the chassis support, when the supporting mechanism needs to be moved, the driving assembly drives the moving wheel set, the moving mechanism can drive the whole supporting trolley to move together, and a constructor can rapidly move the supporting mechanism without disassembling the supporting mechanism; and the time for disassembling or reassembling the supporting mechanism is saved, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of tunnel construction equipment, in particular to a supporting trolley for tunnel construction. Background Art

[0002] During the construction of hydropower tunnels, subway projects, railway tunnels, highway tunnels, underground powerhouses, and military underground projects, if the surrounding rock is unstable, it is necessary to pre-erect arches, install anchor bolts, and hang steel mesh to prevent tunnel collapse. To facilitate construction, a support scaffolding is generally installed on the construction site. It is mainly used to provide a temporary working platform and support frame at the front end of the tunnel excavation face. This not only facilitates construction workers to work on the tunnel, but also provides temporary support for the tunnel excavation face, preventing accidents such as collapse of the tunnel roof during construction.

[0003] Traditional support scaffolding is generally composed of several scaffolding units gradually stacked up. However, after each completion of the tunnel front face construction, the support scaffolding needs to be moved. Each movement requires the support scaffolding to be dismantled as a whole and then moved to the front end of the tunnel excavation face and rebuilt. This not only consumes manpower and time costs, but also seriously affects the construction efficiency of the tunnel. Utility Model Content

[0004] In order to improve the movement mode of the support scaffolding and enhance the construction efficiency of the tunnel, the present application provides a support trolley for tunnel construction.

[0005] The present application provides a tunnel construction support trolley adopting the following technical solution:

[0006] A support trolley for tunnel construction, comprising a chassis bracket, and a support mechanism and a moving mechanism provided on the chassis bracket;

[0007] The support mechanism includes a support scaffolding, which is composed of several layers of scaffolding units that can be detachably stacked;

[0008] The moving mechanism includes a moving wheel group and a driving assembly arranged on the bottom side of the chassis bracket. Several groups of supporting assemblies are provided on both sides of the base plate bracket. Several groups of supporting assemblies are used to lift or lower the chassis bracket so that the moving wheel group can be raised and suspended in the air or lowered to support the support trolley.

[0009] By adopting the above technical solution, through the mutual cooperation of the mobile mechanism and the top support assembly, when the support mechanism needs to be moved, it is only necessary to retract the top support assembly so that the mobile mechanism is lowered and supports the entire support trolley, and then start the drive assembly, so that the mobile mechanism can drive the entire support trolley to move together, and the construction personnel can quickly move it without disassembling the support mechanism, which is conducive to saving the time spent on disassembling or reassembling the support mechanism and improving construction efficiency. Secondly, when the support mechanism does not need to be moved, the chassis bracket is lifted by the top support mechanism so that the mobile wheel set is erected, so that the mobile mechanism cannot drive the support trolley to move, and the weight of the entire support trolley is supported by the top support assembly instead of the movable mobile mechanism, which is conducive to improving the stability of the support mechanism.

[0010] Optionally, the movable wheel group includes front movable wheels located on both sides of the front end of the chassis bracket and rear movable wheels located on both sides of the rear end, and the drive assembly includes two groups of front drive parts that individually drive the front movable wheels on both sides, and rear drive parts and rear linkage components that simultaneously drive the rear movable wheels on both sides.

[0011] By adopting the above technical solution, the front moving wheels on both sides are driven separately by two sets of front drive components. When the driving speeds of the two sets of front drive components are inconsistent, the moving wheels on both sides can produce a certain speed difference, thereby driving the front end of the entire support trolley to turn, so that the support trolley can turn while walking.

[0012] Optionally, the mobile wheel set adopts track wheels.

[0013] By adopting the above technical solution, the track wheel further increases the contact area between the moving wheel set and the ground, so that the moving wheel set can move smoothly on soft or uneven ground, which is beneficial to improving the ground adaptability of the moving wheel set.

[0014] Optionally, the top support assembly includes a top support beam, a top support driving member and a top support foot. The top support beam is slidably arranged on both sides of the chassis bracket, and the end of the top support beam is connected to the top support driving member. The top support driving member can also be telescopic. The telescopic end of the top support driving member is connected to the top support foot, and the top support foot is in the shape of a long strip.

[0015] By adopting the above technical solution, the top support beam can be hidden in the chassis bracket by sliding. Therefore, when the support trolley is moved, the top support beam can drive the top support drive member and the top support legs to be stored on both sides of the chassis bracket, thereby reducing the overall lateral width of the support trolley and facilitating the movement of the support trolley in narrow tunnels. Secondly, the top support legs are long strips, which further increase the contact area between the top support legs and the ground compared to the traditional disc shape, which helps to reduce the pressure of the top support legs on the ground per unit area, so that it can evenly support the support trolley.

[0016] Optionally, the supporting leg is rotatably connected to the telescopic end of the supporting driving member, and the extending angle of the supporting leg can be adjusted by rotation.

[0017] By adopting the above technical solution, the top support legs can be rotated and adjusted to extend at an angle according to different terrains, which is beneficial to improving the terrain adaptability of the top support assembly.

[0018] Optionally, at least three groups of top support components are provided on any side of the chassis bracket and are evenly distributed along the side of the chassis bracket.

[0019] By adopting the above technical solution, the three sets of top support assemblies can effectively support the front, middle and rear ends of the chassis bracket, which is conducive to the top support assemblies evenly supporting the support trolley and preventing it from collapsing. As the number of top support assemblies increases, several sets of top support assemblies can more fully and evenly support the support trolley, which is conducive to improving the stability of the support trolley.

[0020] Optionally, the support mechanism further includes a lifting platform, which is arranged on the chassis bracket and located on one side of the support scaffolding.

[0021] By adopting the above technical solution, the lifting platform can be used to carry construction personnel or parts of the scaffolding unit for lifting, thereby eliminating the need for construction personnel to manually carry and lift the various parts of the scaffolding unit, which is conducive to the layer-by-layer construction of the supporting scaffolding.

[0022] Optionally, the shelf unit is provided with grid panels and ladders, the grid panels of the shelf units at different levels are staggered, and the ladders are located on the same side as the grid panels at the same level.

[0023] By adopting the above technical solution, when construction workers climb up and down the ladder to support the scaffolding, the grid layer plates can catch the construction workers in each scaffolding unit, greatly improving the safety of the construction workers when climbing.

[0024] In summary, the technical solution of this application has at least one of the following beneficial effects:

[0025] 1. Through the mutual cooperation of the moving mechanism and the top support assembly, when the support mechanism needs to be moved, the moving mechanism is used to drive the entire support trolley to move together. The construction workers can move it quickly without disassembling the support mechanism, which is beneficial to saving the time spent on disassembling or reassembling the support mechanism and improving construction efficiency.

[0026] 2. Through the mutual cooperation of the mobile mechanism and the top support assembly, when the support mechanism needs to be fixed, the top support mechanism is used to lift the chassis bracket so that the mobile wheel group is erected. At this time, the weight of the entire support trolley is supported by the top support assembly rather than the movable mobile mechanism, which is beneficial to improve the stability of the support mechanism.

[0027] 3. By setting up a lifting platform on one side of the supporting scaffold, when building a higher supporting scaffold, construction workers no longer need to manually carry and lift the various components of the scaffolding unit, which is conducive to the layer-by-layer construction of the supporting scaffold. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of a support trolley for tunnel construction in an embodiment of the present application.

[0029] Figure 2 It is a structural schematic diagram of a scaffolding unit in a support trolley for tunnel construction in an embodiment of the present application.

[0030] Figure 3 This is a schematic diagram of the bottom structure of a support trolley for tunnel construction in an embodiment of the present application.

[0031] Figure 4 yes Figure 3 A partial enlarged view of a

[0032] Description of reference numerals:

[0033] 1. Chassis bracket; 11. Top support assembly; 111. Top support beam; 112. Top support drive; 113. Top support foot; 2. Support mechanism; 21. Support scaffolding; 211. Scaffolding unit; 2111. Support vertical frame; 2112. Support horizontal frame; 2113. Grid layer; 2114. Ladder; 2115. Workbench; 22. Lifting platform; 3. Moving mechanism; 31. Moving wheel set; 311. Front moving wheel; 312. Rear moving wheel; 32. Drive assembly; 321. Front drive; 322. Rear drive; 323. Rear linkage assembly. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-4 This application is described in further detail.

[0035] The embodiment of the present application discloses a support trolley for tunnel construction. Figure 1A support trolley for tunnel construction includes a chassis bracket 1, a support mechanism 2 and a moving mechanism 3, wherein the support mechanism 2 is arranged on the top side of the chassis bracket 1, and the support mechanism 2 is used as a temporary working platform and support frame. The moving mechanism 3 is arranged on the bottom side of the chassis bracket 1, and is used to drive the entire support trolley to move together, so that through the moving mechanism 3, construction workers can quickly move the support mechanism 2 without disassembling it, which is beneficial to saving the time spent on disassembling and reassembling the support mechanism 2, and is beneficial to improving the efficiency of tunnel construction.

[0036] Reference Figure 1 、 Figure 2 and Figure 3 The support mechanism 2 includes a support scaffolding 21 and a lifting platform 22. The support scaffolding 21 is arranged at the front end of the chassis support 1. The support scaffolding 21 is composed of several layers of scaffolding units 211 that can be detachably stacked to realize the function of serving as a temporary working platform and a supporting frame for the tunnel. The lifting platform 22 is arranged at the rear end of the chassis support 1 and is located next to the support scaffolding 21. The lifting platform 22 can be used to carry construction personnel or scaffolding unit 211 components for lifting, which is conducive to the layer-by-layer construction of the support scaffolding 21. In this embodiment, the lifting platform 22 adopts a traditional double-fork hydraulic lifting platform.

[0037] Reference Figure 1 、 Figure 2 and Figure 3 Specifically, the scaffolding unit 211 includes support vertical frames 2111 and support horizontal frames 2112 arranged on all sides. The support vertical frames 2111 and support vertical frames 2112 of each layer of scaffolding unit 211 are detachably connected to each other and cooperate with each other to form the overall framework of the scaffolding unit 211. Each layer of scaffolding unit 211 is provided with a grid layer 2113 and a ladder 2114. Specifically, the grid layer 2113 of scaffolding units 211 on different layers are staggered, while the grid layer 2113 and ladder 2114 of scaffolding units 211 on the same layer are located on the same side. Therefore, when construction workers climb up and down the ladder 2114 to support the scaffolding 21, the grid layer 2113 on each layer can catch the construction workers, greatly improving the safety of the construction workers when climbing. Work platforms 2115 are also provided on both sides of the scaffolding unit 211 to facilitate construction work with construction workers.

[0038] Reference Figure 3 and Figure 4The moving mechanism 3 includes a moving wheel set 31 and a drive assembly 32, wherein the moving wheel set 31 is used to drive the entire support trolley to move, and the drive assembly 32 is used to drive the moving wheel set 31 to rotate. Specifically, the moving wheel set 31 includes front moving wheels 311 provided on both sides of the front end of the chassis bracket 1, and rear moving wheels 312 provided on both sides of the rear end of the chassis bracket 1. The front moving wheels 311 and the rear moving wheels 312 can be wheels that can move the support trolley. In this embodiment, the front moving wheels 311 and the rear moving wheels 312 are both track wheels.

[0039] Reference Figure 4 The drive assembly 32 includes a front drive member 321 for driving the front moving wheels 311 and a rear drive member 322 for driving the rear moving wheels 312. In this embodiment, the front moving wheels 311 on both sides are independently driven to rotate by the front drive member 321, and the rear moving wheels 312 on both sides are simultaneously driven to rotate by the rear drive member 322. By controlling the speed of the front moving wheels 311 on both sides and creating a speed difference between the front moving wheels 311 on both sides, the support trolley can be made to turn while moving. In this embodiment, both the front drive member 321 and the rear drive member 322 are driven by a drive motor.

[0040] Reference Figure 4 In order to realize that the rear driving member 322 drives the rear moving wheels 312 on both sides at the same time, the driving assembly 32 also includes a rear linkage assembly 323, which is used to link the rear moving wheels 312 on both sides. The rear linkage assembly 323 includes a linkage rod, a driving bevel gear and a driven bevel gear. The two ends of the linkage rod are respectively connected to the rear moving wheels 312 on both sides, and the driven bevel gear is sleeved on the circumference of the linkage rod. The driving end of the rear driving member 322 is connected to the driving bevel gear, and the driving bevel gear and the driven bevel gear are engaged with each other, so that the rear driving member 322 can simultaneously drive the rear moving wheels 312 on both sides to rotate through the rear linkage assembly 323.

[0041] Reference Figure 1 and Figure 3 , several groups of top support assemblies 11 are also provided on both sides of the chassis bracket 1. The top support assemblies 11 are used to lift or lower the chassis bracket 1 so that the moving wheel group 31 can be raised and suspended in the air or lowered for support. Therefore, when the support trolley needs to move, the mobile mechanism 3 is lowered for support and can drive the entire support trolley to move. In the non-moving process, the top support assemblies 11 can lift the chassis bracket 1, and the mobile mechanism 3 is raised and suspended in the air. The entire support trolley can be fully and firmly supported by the top support assemblies 11. In this embodiment, there are three groups of top support assemblies 11, which can support the front, middle and rear ends of the chassis bracket 1 so that they can be evenly stressed. In other embodiments, more groups of top support assemblies 11 can be provided to more fully support the support trolley.

[0042] Specifically, the top support assembly 11 includes a top support beam 111, a top support driving member 112 and a top support leg 113, wherein the top support beam 111 is horizontally slidably arranged on both sides of the chassis bracket 1, so that the top support beam 111 can be horizontally extended or retracted from both sides of the chassis bracket 1. The end of the top support beam 111 is connected to the top support driving member 112, and the top support driving member 112 can be a driving member that can withstand loads and can be extended. In this embodiment, the top support driving member 112 is a hydraulic telescopic rod. The telescopic end of the top support driving member 112 is rotatably connected to the top support leg 113. Specifically, the top support leg 113 is in the shape of an elongated strip, which can effectively increase the contact area between the top support leg 113 and the ground, so that the top support assembly 11 can evenly support the entire support trolley. Furthermore, the top support leg 113 can adjust the direction of extension of the top support leg 113 by rotating, so that it can adapt to different shapes of the ground, which is conducive to improving the terrain adaptability of the top support assembly 11.

[0043] The implementation principle of a support trolley for tunnel construction in the embodiment of the present application is as follows:

[0044] When the support trolley needs to be moved, the top support driving member 112 contracts and the top support leg 113 is gradually retracted. At this time, the chassis bracket 1 drops as the top support driving member 112 contracts, and the moving mechanism 3 is lowered to replace the top support assembly 11 to support the entire support trolley. Then the top support beam 111 is retracted into the chassis bracket, completing the storage of the top support assembly 11. The driving assembly 32 is then started, and the moving wheel assembly 31 drives the entire support trolley to move together. If a turn is required, the speed of the moving wheel assembly 31 on the side of the required rotation direction is slowed down accordingly, and the turn is achieved by using the speed difference between the front moving wheels 311 on both sides.

[0045] When the support trolley needs to be fixed, the supporting beam 111 is extended, the supporting driving member 112 is extended and gradually lifts up the chassis bracket 1, so that the moving mechanism 3 is gradually erected as the chassis bracket 1 rises. At this time, the moving mechanism 3 cannot drive the support trolley to move, and the weight of the entire support trolley is supported by the supporting assembly 11, thus completing the fixation of the support trolley.

[0046] This specific implementation manner is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the specific implementation manner as needed, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A support trolley for tunnel construction, characterized in that: It comprises a chassis bracket (1), and a supporting mechanism (2) and a moving mechanism (3) arranged on the chassis bracket (1); The support mechanism (2) comprises a support scaffold (21) and a lifting platform (22); the support scaffold (21) is composed of a plurality of scaffold units (211) that are detachably stacked; and the lifting platform (22) is arranged on the chassis bracket (1) and is located on one side of the support scaffold (21); The moving mechanism (3) comprises a moving wheel group (31) and a driving assembly (32) arranged on the bottom side of the chassis bracket (1); the moving wheel group (31) comprises front moving wheels (311) located on both sides of the front end of the chassis bracket (1) and rear moving wheels (312) located on both sides of the rear end; the front moving wheels (311) and the rear moving wheels (312) are both track wheels; the driving assembly (32) comprises two groups of front driving components (321) for independently driving the front moving wheels (311) on both sides, and a rear driving component (322) and a rear linkage assembly (323) for simultaneously driving the rear moving wheels (312) on both sides; A plurality of groups of supporting assemblies (11) are provided on both sides of the chassis support (1), and the plurality of groups of supporting assemblies (11) are used to lift up or lower the chassis support (1), so that the movable wheel group (31) can be lifted up and suspended in the air or lowered to support the support trolley.

2. A tunnel construction support vehicle according to claim 1, characterized in that: The top support assembly (11) comprises a top support crossbeam (111), a top support driving member (112) and a top support leg (113); the top support crossbeam (111) is slidably arranged on both sides of the chassis bracket (1); the end of the top support crossbeam (111) is connected to the top support driving member (112); the top support driving member (112) is also capable of telescoping; the telescopic end of the top support driving member (112) is connected to the top support leg (113); and the top support leg (113) is in the shape of an elongated strip.

3. A tunnel construction support vehicle according to claim 2, characterized in that: The top support leg (113) is rotatably connected to the telescopic end of the top support driving member (112), and the top support leg (113) can adjust the extension angle by rotating.

4. A tunnel construction support vehicle according to claim 1, characterized in that: At least three groups of top support components (11) are arranged on any one side of the chassis support (1), and are evenly distributed along the side of the chassis support (1).

5. A tunnel construction support vehicle according to claim 1, characterized in that: The shelf unit (211) is provided with a grid layer plate (2113) and a ladder (2114); the grid layer plates (2113) of the shelf units (211) at different levels are arranged in a staggered manner, and the ladder (2114) and the grid layer plates (2113) at the same level are located on the same side.

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