Concrete spreader for tunnel lining trolley

Abstract

The utility model provides a concrete spreader used on a tunnel lining trolley, which comprises a trolley body running on a track and a material distributing device arranged on the trolley body, and the track is paved at the upper part of the tunnel lining trolley along the longitudinal direction; the material distributing device comprises a lifting mechanism, a feeding pipe, a horizontally-arranged left discharging pipe, a horizontally-arranged right discharging pipe and a vertically-arranged upper discharging pipe, the lifting mechanism is installed on the vehicle body and provided with a moving part, and the left discharging pipe, the right discharging pipe and the upper discharging pipe are all fixedly connected with the moving part of the lifting mechanism. According to the design, the adaptability of the concrete spreader on the lining trolley is improved, the corresponding position relation between the discharge pipe of the spreader and the template pouring pipeline does not need to be specially considered when a trolley template system is designed, on one hand, the assembling difficulty of the trolley is reduced, on the other hand, the concrete spreader can be produced in batches, the production cost is reduced, and the production efficiency is improved. Three discharging pipes are arranged, so that the arch crown and the haunches on the two sides are poured at the same time.

Description

Technical Field

[0001] The utility model relates to the technology of tunnel jumbo, in particular to a concrete pouring system of a tunnel lining jumbo, and specifically to a concrete distributor for a tunnel lining jumbo. Background Art

[0002] The concrete pouring system of a tunnel lining jumbo is used for pouring the arch top and the arch waists on both sides of the arch top of a tunnel. When the concrete distributor on the jumbo pours the arch waists on both sides, some use a single discharge pipe for pouring. In this way, after pouring on one side is completed, the discharge pipe needs to be rotated and connected to the inlet of the pouring pipeline on the other side before pouring on the other side can be carried out, resulting in low efficiency; some adopt double-pipe pouring, such as patent CN211257860U. In this pouring method, as the distributor moves forward, the arch waists on both sides are poured simultaneously, greatly improving the construction efficiency.

[0003] For the above two methods of pouring the arch waists of a tunnel, currently, a power-driven telescopic pipe is generally used to realize the connection between the discharge pipe and the pouring pipeline. To ensure the sealing firmness and reliability when the telescopic pipe is docked with the inlet of the pouring pipeline, the inlets of the pouring pipelines arranged at various parts of the formwork system of the jumbo need to maintain a high coaxiality with the telescopic pipe. The high coaxiality requirement makes the corresponding degree of the positional relationship between the formwork system and the pouring system of the lining jumbo extremely high, and the assembly accuracy requirement of the jumbo is also high, and there is no interchangeability between different jumbos. The jumbo is customized according to the tunnel design, and the non-interchangeable design results in many of its components unable to be mass-produced, correspondingly increasing the production cost of the jumbo manufacturer, and the requirements for processing and manufacturing become correspondingly complex, which is not conducive to the control of product quality.

[0004] In addition, for the double-pipe pouring concrete distributor on the existing tunnel lining jumbo, its arch top pouring requires replacing the discharge pipe after the arch waist pouring is completed to carry out the arch top pipeline, and there is also a need for further improvement. Summary of the Utility Model

[0005] Aiming at the problems raised in the background art, the purpose of the utility model is to provide a concrete distributor for a tunnel lining jumbo, which combines the characteristics of tunnel lining construction, changes the height of the discharge pipe of the concrete distributor through a lifting mechanism, so that the discharge pipe can match the concrete pouring pipelines with different feeding heights, thereby improving the adaptability of the concrete distributor of the jumbo, and the product can be mass-produced, reducing the cost.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A concrete distributor for a tunnel lining trolley, comprising a vehicle body running on a track and a material distribution device installed on the vehicle body, wherein the track is longitudinally laid on the upper part of the tunnel lining trolley; the material distribution device includes a lifting mechanism, a feed pipe, a horizontally arranged left discharge pipe, a horizontally arranged right discharge pipe and a vertically arranged upper discharge pipe. The lifting mechanism is installed on the vehicle body and has a moving part. The left discharge pipe, the right discharge pipe and the upper discharge pipe are all fixedly connected to the moving part of the lifting mechanism. The left discharge pipe, the right discharge pipe and the upper discharge pipe are all connected to the feed pipe, and valves are respectively connected to the left discharge pipe, the right discharge pipe and the upper discharge pipe.

[0008] The left discharge pipe and the right discharge pipe are connected to the feed pipe through a herringbone-shaped branch pipe, and the lower end of the upper discharge pipe is sequentially connected to the feed pipe through a transition pipe and a tee joint; the branch pipe and the transition pipe are both fixedly penetrated through the moving part of the lifting mechanism.

[0009] The lifting mechanism further includes a bracket, a first slideway and an action actuator. The first slideway is vertically arranged in the bracket, the moving part is slidably connected to the first slideway, and the action actuator is connected to the moving part and drives the moving part to move on the first slideway.

[0010] The moving part includes a material distribution sliding seat and a mounting seat. The material distribution sliding seat is slidably connected to the first slideway. A vertical second slideway is provided on the material distribution sliding seat. The mounting seat is slidably connected to the second slideway, and the upper end of the mounting seat is connected to the material distribution sliding seat through a pin shaft; the action actuator 24 is connected to the pin shaft and drives the material distribution sliding seat and the mounting seat to move simultaneously through the pin shaft; the branch pipe sequentially passes through the material distribution sliding seat and the mounting seat, and the transition pipe also sequentially passes through the material distribution sliding seat and the mounting seat.

[0011] A first through hole A and a second through hole A are provided on the material distribution sliding seat, a first through hole B and a second through hole B are provided on the mounting seat. The first through hole A and the first through hole B are coaxial, and the second through hole A and the second through hole B are coaxial. The branch pipe is penetrated through the first through hole A and the first through hole B, and the transition pipe is penetrated through the second through hole A and the second through hole B; the branch pipe is fixedly connected to the first through hole B, and the transition pipe is fixedly connected to the second through hole B.

[0012] The feed pipe is a flexible hose, one end of which is connected to the branch pipe and the transition pipe, and the other end is connected to an external folding feeding pipe.

[0013] The discharge ports of the left discharge pipe, the right discharge pipe and the upper discharge pipe are respectively connected with telescopic pipe assemblies and are connected to an external pouring pipeline through the telescopic pipe assemblies.

[0014] The action actuator is a hydraulic cylinder.

[0015] The utility model has the following beneficial effects: The design of the utility model improves the adaptability of the concrete distributor on the lining trolley. When designing the trolley formwork system, it is not necessary to specifically consider the corresponding position relationship between the discharge pipe of the distributor and the formwork pouring pipeline. First, it reduces the assembly difficulty of the trolley. Second, the concrete distributor can be mass-produced, reducing the production cost. Third, it has three discharge pipes, realizing the simultaneous pouring of the arch top and the two side arch waists. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional schematic diagram of the utility model.

[0017] Figure 2 is a left side view of the utility model.

[0018] Figure 3 is a front view of the utility model.

[0019] Figure 4 is a three-dimensional schematic diagram of the mounting seat, the left discharge pipe, the right discharge pipe and the upper discharge pipe.

[0020] Figure 5 is a top view of the branch pipe.

[0021] Figure 6 is a three-dimensional schematic diagram of the support, the first slideway and the material distribution slide seat.

[0022] Figure 7 is a front view of the telescopic pipe assembly in an embodiment.

[0023] In the figure, 1, vehicle body; 2, lifting mechanism; 3, feed pipe; 4, left discharge pipe; 5, right discharge pipe; 6, upper discharge pipe; 7, branch pipe; 8, transition pipe; 9, telescopic pipe assembly; 21, moving part; 22, support; 23, first slideway; 24, action actuator; 91, first pipe joint; 92, inner pipe; 93, outer pipe; 94, second pipe joint; 211, material distribution slide seat; 212, mounting seat; 3101, first through hole A; 3102, second through hole A; 3201, first through hole B; 3202, second through hole B. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solution of the utility model will be further described in detail below with reference to the drawings and embodiments.

[0025] As Figures 1-6As shown in the figure, the utility model provides a concrete distributor for a tunnel lining trolley, which includes a vehicle body 1 running on a track and a material distribution device installed on the vehicle body 1. The track is longitudinally laid on the upper part of the tunnel lining trolley; in the above structure, the tunnel lining trolley and the track longitudinally laid on the upper part of the tunnel lining trolley are both prior arts, so no diagrams are shown, and their structures can be referred to Patent CN211257860U and CN218934435U;

[0026] The described material distribution device includes a lifting mechanism 2, a feed pipe 3, a horizontally arranged left discharge pipe 4, a horizontally arranged right discharge pipe 5, and a vertically arranged upper discharge pipe 6. The lifting mechanism 2 is installed on the vehicle body 1, and the lifting mechanism has a moving part 21. The left discharge pipe 4, the right discharge pipe 5, and the upper discharge pipe 6 are all fixedly connected to the moving part 21 of the lifting mechanism 2, and the left discharge pipe 4, the right discharge pipe 5, and the upper discharge pipe 6 are all connected to the feed pipe 3. In the above structure, the left discharge pipe 4 and the right discharge pipe 5 are correspondingly used for pouring the two side arch waists, and the upper discharge port is correspondingly used for pouring the arch top. When pouring the arch top, in the prior art, due to the often different designed heights of the arch top, it is necessary to replace a special discharge pipe for arch top pouring. The utility model does not need to replace the discharge pipe for pouring the arch top as before. When the height position of the interface of the arch top changes, the lifting mechanism 2 is used to adapt to the height of the arch top formwork. Although not shown in the figure, it can be understood that valves are respectively connected to the left discharge pipe 4, the right discharge pipe 5, and the upper discharge pipe 6, and by opening and closing the corresponding valves, the two side arch waists can be poured first, and then the arch top can be poured, or pouring in three directions can also be carried out simultaneously.

[0027] In the above design of the utility model, the pouring interface of the arch waist is horizontal, and the pouring interface of the arch top is vertical, abandoning the rotating mechanism used for docking on the previous distributor. When docking at a rotating angle in the past, the control of the angle was relatively complex. The utility model correspondingly reduces the difficulty of docking.

[0028] The left discharge pipe 4 and the right discharge pipe 5 are connected to the feed pipe 3 through a herringbone-shaped branch pipe 7, and the lower end of the upper discharge pipe 6 is sequentially connected to the feed pipe 3 through a transition pipe 8 and a three-way joint; the branch pipe 7 and the transition pipe 8 are both fixedly penetrated through the moving part 21 of the lifting mechanism 2, and the actuator 24 is a hydraulic cylinder.

[0029] The described lifting mechanism 2 further includes a bracket 22, a first slideway 23, and an actuator 24. The first slideway 23 is vertically arranged inside the bracket 22. The moving part 21 is slidably connected to the first slideway 23. The actuator 24 is connected to the moving part 21 and drives the moving part 21 to move on the first slideway 23. The moving part 21 includes a material distribution slide base 211 and a mounting base 212. The material distribution slide base 211 is slidably connected to the first slideway 23. A vertical second slideway is provided on the material distribution slide base 211. The mounting base 212 is slidably connected to the second slideway, and the upper end of the mounting base 212 is connected to the material distribution slide base 211 through a pin shaft. The actuator 24 is connected to the pin shaft and drives the material distribution slide base 211 and the mounting base 212 to move simultaneously through the pin shaft. The branch pipe 7 sequentially passes through the material distribution slide base 211 and the mounting base 212, and the transition pipe 8 also sequentially passes through the material distribution slide base 211 and the mounting base 212. A first through hole A1101 and a second through hole A1102 are provided on the material distribution slide base 211. A first through hole B1201 and a second through hole B1202 are provided on the mounting base 212. The first through hole A1101 is coaxial with the first through hole B1201, and the second through hole A1102 is coaxial with the second through hole B1202. The branch pipe 7 is disposed in the first through hole A1101 and the first through hole B1201, and the transition pipe 8 is disposed in the second through hole A1102 and the second through hole B1202. The branch pipe 7 is fixedly connected to the first through hole B1201, and the transition pipe 8 is fixedly connected to the second through hole B1202. This part of the structure fully considers the vulnerability of the three material distribution pipes in the material distribution device. When the three discharge pipes are damaged, it is not necessary to disassemble the material distribution slide base 211. Only by disassembling the mounting base 212 can the installation and replacement be carried out.

[0030] The described feed pipe 3 is a flexible hose, one end of which is connected to the branch pipe 7 and the transition pipe 8, and the other end is connected to an external folding feeding pipe. The connection between the feed pipe 3 and the external folding feeding pipe belongs to the prior art, and reference can also be made to the patent CN211257860U.

[0031] The discharge ports of the left discharge pipe 4, the right discharge pipe 5, and the upper discharge pipe 6 are respectively connected with telescopic pipe assemblies 9, and are connected to an external pouring pipeline through the telescopic pipe assemblies 9. The telescopic pipe assemblies 9 can be manual telescopic pipes or automatic telescopic pipes.

[0032] In an embodiment of the present utility model, as Figure 7 shown, the telescopic pipe assembly 9 is a manual telescopic pipe. The telescopic pipe assembly 9 includes a first pipe joint 91, an inner pipe 92, an outer pipe 93, and a second pipe joint 94. The first pipe joint 91 is fixedly sleeved on the inner pipe 92. The inner pipe 92 is fixedly connected to the discharge port of the corresponding discharge pipe. One end of the outer pipe 93 is threadedly connected to the first pipe joint 91, and the other end is fixedly connected to the second pipe joint 94. A rotary sealing ring 95 is provided between the outer pipe 93 and the inner pipe 92. The second pipe joint 94 is connected to an external pouring pipeline.

[0033] The parts not detailed in this utility model are prior art.

Claims

1. A concrete distributing machine for a tunnel lining jumbo, comprising a vehicle body (1) running on a track and a distributing device installed on the vehicle body (1), wherein the track is longitudinally laid on the upper part of the tunnel lining jumbo; characterized in that: The described material distributing device includes a lifting mechanism (2), a feed pipe (3), a horizontally arranged left discharge pipe (4), a horizontally arranged right discharge pipe (5), and a vertically arranged upper discharge pipe (6). The lifting mechanism (2) is installed on the vehicle body (1). The lifting mechanism (2) has a moving part (21). The left discharge pipe (4), the right discharge pipe (5), and the upper discharge pipe (6) are all fixedly connected to the moving part (21) of the lifting mechanism (2). The left discharge pipe (4), the right discharge pipe (5), and the upper discharge pipe (6) are all connected to the feed pipe (3), and valves are respectively connected to the left discharge pipe (4), the right discharge pipe (5), and the upper discharge pipe (6).

2. The concrete distributor for a tunnel lining jumbo according to claim 1, wherein: The left discharge pipe (4) and the right discharge pipe (5) are connected to the feed pipe (3) through a herringbone-shaped branch pipe (7). The lower end of the upper discharge pipe (6) is sequentially connected to the feed pipe (3) through a transition pipe (8) and a three-way joint. The branch pipe (7) and the transition pipe (8) are both fixedly arranged through the moving part (21) of the lifting mechanism (2).

3. The concrete distributor for a tunnel lining jumbo according to claim 2, characterized in that: The lifting mechanism (2) further includes a bracket (22), a first slideway (23), and an action actuator (24). The first slideway (23) is vertically arranged in the bracket (22). The moving part (21) is slidably connected to the first slideway (23). The action actuator (24) is connected to the moving part (21) and drives the moving part (21) to move on the first slideway (23).

4. The concrete distributor for a tunnel lining jumbo according to claim 3, characterized in that: The moving part (21) includes a material distributing slide seat (211) and a mounting seat (212). The material distributing slide seat (211) is slidably connected to the first slideway (23). A vertical second slideway is provided on the material distributing slide seat (211). The mounting seat (212) is slidably connected to the second slideway, and the upper end of the mounting seat (212) is connected to the material distributing slide seat (211) through a pin shaft. The action actuator (24) is connected to the pin shaft and drives the material distributing slide seat (211) and the mounting seat (212) to move simultaneously through the pin shaft. The branch pipe (7) sequentially passes through the material distributing slide seat (211) and the mounting seat (212), and the transition pipe (8) also sequentially passes through the material distributing slide seat (211) and the mounting seat (212).

5. The concrete distributor for a tunnel lining jumbo according to claim 4, characterized in that: A first through hole A (1101) and a second through hole A (1102) are provided on the material distributing slide seat (211). A first through hole B (1201) and a second through hole B (1202) are provided on the mounting seat (212). The first through hole A (1101) is coaxial with the first through hole B (1201), and the second through hole A (1102) is coaxial with the second through hole B (1202). The branch pipe (7) is arranged in the first through hole A (1101) and the first through hole B (1201), and the transition pipe (8) is arranged in the second through hole A (1102) and the second through hole B (1202). The branch pipe (7) is fixedly connected to the first through hole B (1201), and the transition pipe (8) is fixedly connected to the second through hole B (1202).

6. The concrete distributor for a tunnel lining jumbo according to claim 2, characterized in that: The feed pipe (3) is a flexible hose, one end of which is connected to the branch pipe (7) and the transition pipe (8), and the other end is connected to an external folding feed pipe.

7. The concrete distributor for a tunnel lining jumbo according to claim 1, characterized in that: The discharge ports of the left discharge pipe (4), the right discharge pipe (5), and the upper discharge pipe (6) are respectively connected with telescopic pipe assemblies (9), and are connected to an external pouring pipeline through the telescopic pipe assemblies (9).

8. The concrete distributor for a tunnel lining jumbo according to claim 3, characterized in that: The described actuator (24) is a hydraulic cylinder.

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