Double-pipe rail-mounted distributing machine

Abstract

The invention discloses a double-pipe rail-mounted distributing machine, which relates to the technical field of tunnel construction, and comprises a base, a feeding pipe, a discharging pipe, a telescopic grouting pipe, a telescopic flushing pipe and a rotating device, the feeding pipe is arranged at the tail end of the top of the base, the head end of the feeding pipe is connected with the discharging pipe through a rotating joint, and the discharging pipe is connected with the telescopic flushing pipe through a rotating joint; the tail end of the discharging pipe is connected with the telescopic flushing pipe, the telescopic flushing pipe is further connected to the discharging pipe, the telescopic grouting pipe and the telescopic flushing pipe can stretch out and draw back in the axial direction, and the rotating device can control the discharging pipe to rotate with the axis as the center. According to the double-pipe rail-mounted distributing machine, the construction efficiency can be improved, the labor cost is reduced, and the time is shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction, in particular to a double-tube track-type concrete placing boom. Background Art

[0002] In the field of tunnel construction, the secondary lining trolley placing device is an important equipment for pouring secondary lining concrete of tunnels.

[0003] Some secondary lining trolleys utilize dual-feeding trolleys equipped with intelligent equipment specifically designed for tunnel secondary lining concrete pouring, such as a concrete pump with dual discharge ports. This allows for simultaneous and balanced pouring of secondary lining concrete on both sides of the tunnel. This solves the problems of differential pouring volume on both sides and alternating loads on the trolleys, reduces the probability of quality issues and cold joint formation caused by factors such as window swapping, material waiting, and abnormal handling, and effectively improves the quality of concrete pouring. The anti-condensation three-way valves they are equipped with ensure precise control and smooth switching of each pouring window. The pumping pipeline winds its way upward along the pouring sequence of each layer of windows. Operators simply operate the pouring switch devices along the pipeline in sequence to achieve layer-by-layer pouring, window by window, simplifying the construction process and improving operational efficiency.

[0004] The current double-feeding trolley has the following disadvantages:

[0005] 1) Single-tube pouring:

[0006] In the actual construction process, the single-tube pouring method requires a lot of time to clean the pipe after pouring, which reduces the construction efficiency.

[0007] 2) Pipeline docking may require manual operation:

[0008] Many existing concrete distribution equipment still relies on manual labor for pipe connection. This process is not only labor-intensive but also difficult to ensure in terms of speed and accuracy. Operators must spend time aligning pipe joints and using tools to seal the connections. In complex construction environments, such as cramped spaces or those with high temperatures and humidity, manual operation becomes even more difficult, resulting in low efficiency. Furthermore, manual operation carries certain safety risks. For example, fatigue or negligence can lead to loose pipe connections, which can cause concrete leaks.

[0009] 3) During the concrete pouring process, it may be difficult to accurately monitor data such as flow rate, temperature, and pouring volume:

[0010] For concrete pouring, data such as flow rate, temperature and pouring volume are very critical parameters. However, some of the existing concrete distribution equipment may lack effective monitoring means. In terms of flow monitoring, it is impossible to accurately know the flow speed and flow rate of concrete in the pipeline, which may lead to insufficient or excessive concrete supply. For example, in some projects that require precise concrete pouring volume, such as the production of prefabricated components, if the flow control is inaccurate, it will affect the quality and dimensional accuracy of the prefabricated components. In terms of temperature monitoring, since the performance of concrete is closely related to temperature, if the temperature cannot be monitored in real time, when the temperature is too high or too low, it may affect the setting time and strength development of the concrete. Inaccurate monitoring of the pouring volume will make it impossible for construction personnel to accurately grasp the progress of the project and it will be difficult to reasonably arrange subsequent construction plans. Summary of the Invention

[0011] The purpose of the present invention is to provide a double-tube track-type concrete placing boom to solve the problems existing in the above-mentioned prior art, thereby improving construction efficiency and reducing labor costs and time.

[0012] To achieve the above object, the present invention provides the following solutions:

[0013] The present invention provides a double-tube track-type concrete placing machine, comprising a base, a feed pipe, a discharge pipe, a telescopic grouting pipe, a telescopic flushing pipe and a rotating device. The feed pipe is arranged at the tail end of the top of the base, the head end of the feed pipe is connected to the discharge pipe through a rotating joint, the tail end of the discharge pipe is connected to the telescopic flushing pipe, and the discharge pipe is also connected to the telescopic flushing pipe. The telescopic grouting pipe and the telescopic flushing pipe can both be telescopic along the axial direction, and the rotating device can control the discharge pipe to rotate around the axis.

[0014] Preferably, a slider that cooperates with a ground guide rail is provided at the bottom of the base, and the base is driven to move by a linear module.

[0015] Preferably, the discharge pipe is supported on the top of the base through a pipe rack.

[0016] Preferably, the telescopic grouting pipe is connected to the discharge pipe through a bend pipe.

[0017] Preferably, the telescopic grouting pipe is a hydraulic telescopic pipe structure.

[0018] Preferably, the telescopic flushing pipe is a hydraulic telescopic pipe structure, and the bottom of the telescopic flushing pipe is connected to a flushing pump through a pipeline.

[0019] Preferably, the slurry outlet of the telescopic grouting pipe and the liquid outlet of the telescopic flushing pipe can be connected through a pipeline.

[0020] Preferably, the rotating device includes a motor and a transmission mechanism, and the motor drives the discharge pipe to rotate through the transmission mechanism.

[0021] Preferably, it also includes an exterior cleaning connector, one end of which is connected to a flushing pump, and the other end of which can be connected to a flushing hose.

[0022] Preferably, a flow meter is provided on the discharge pipe, and a temperature sensor is provided in the feed pipe.

[0023] Compared with the prior art, the present invention has achieved the following technical effects:

[0024] 1) The double-tube track-type concrete placing boom in the present invention adopts a double-tube design, one for grouting and the other for flushing. After being connected, backwashing can be directly performed, which solves the problem that traditional concrete placing booms need a lot of time to clean the pipes after pouring once. It greatly shortens the pouring time, improves efficiency, and also reduces the difficulty of pipe cleaning.

[0025] 2) The dual-pipe track-mounted concrete placing boom in this invention utilizes telescopic grouting and flushing pipes, coupled with a rotating mechanism to adjust the pipe angles. When the pipes need to be docked, the boom automatically adjusts the position and angle of the pipes (grouting and flushing pipes) to precisely align the main and branch pipe interfaces. This docking method enables unmanned docking at the junction, eliminating the need for manual docking and significantly saving labor costs and time.

[0026] 3) The double-tube track-type concrete placing boom in the present invention can monitor the flow rate and temperature data of poured concrete, which helps to accurately control the construction quality and carry out scientific construction management. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 This is a schematic diagram of the structure of the double-tube track-type concrete placing boom in the present invention;

[0029] In the figure: 1. Base; 2. Feed pipe; 3. Discharge pipe; 4. Telescopic grouting pipe; 5. Telescopic flushing pipe; 6. Rotating device; 7. Rotary joint; 8. Slider; 9. Pipe rack; 10. Elbow; 11. Appearance cleaning joint; 12. Flow meter. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] The purpose of the present invention is to provide a double-tube track-type material placing boom to solve the problems existing in the prior art.

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] The double-tube track-type material placing machine in this embodiment is as follows: Figure 1 As shown, it includes a base 1, a feed pipe 2, a discharge pipe 3, a telescopic grouting pipe 4, a telescopic flushing pipe 5 and a rotating device 6. The feed pipe 2 is set at the top tail end of the base 1. The head end of the feed pipe 2 is connected to the discharge pipe 3 through a rotating joint 7. The setting of the rotating joint 7 can ensure that the discharge pipe 3 can rotate relative to the feed pipe 2. The end of the discharge pipe 3 is connected to the telescopic flushing pipe 5. The discharge pipe 3 is also connected to the telescopic flushing pipe 5. The telescopic grouting pipe 4 and the telescopic flushing pipe 5 can both be extended and retracted along the axial direction. The rotating device 6 can control the discharge pipe 3 to rotate around the axis. The telescopic grouting pipe 4 and the telescopic flushing pipe 5 are used to achieve the telescopic change of the axial position. The rotating device 6 is used to achieve the change of the angle when the telescopic grouting pipe 4 and the telescopic flushing pipe 5 are connected to other pipelines.

[0034] In this specific embodiment, a slider 8 that cooperates with the ground guide rail is provided at the bottom of the base 1. The base 1 is driven to move by a linear module, so that the entire material placing machine moves along a predetermined track.

[0035] In this specific embodiment, the discharge pipe 3 is supported on the top of the base 1 by a pipe rack 9 , and the telescopic grouting pipe 4 is connected to the discharge pipe 3 through a bend pipe 10 .

[0036] In this embodiment, the telescopic grouting pipe 4 is a hydraulic telescopic pipe structure, and the telescopic flushing pipe 5 is a hydraulic telescopic pipe structure. The bottom of the telescopic flushing pipe 5 is connected to the flushing pump through a pipeline. Both the telescopic grouting pipe 4 and the telescopic flushing pipe 5 are hydraulic telescopic pipe structures, and the entire pipe can be extended and retracted by hydraulic drive.

[0037] In this specific embodiment, the slurry outlet of the telescopic grouting pipe 4 and the liquid outlet of the telescopic flushing pipe 5 can be connected through a pipeline. When backwashing operation is required, the telescopic grouting pipe 4 and the telescopic flushing pipe 5 are connected, and flushing liquid is provided to the telescopic flushing pipe 5 through a flushing pump. The flushing liquid passes through the pipeline between the telescopic grouting pipe 4 and the telescopic flushing pipe 5 to backwash the entire grouting pipeline.

[0038] In this embodiment, the rotating device 6 includes a motor and a transmission mechanism, and the motor drives the discharge pipe 3 to rotate through the transmission mechanism. The transmission mechanism can be a gear transmission mechanism, which transmits the power of the motor to the discharge pipe 3 through the gear transmission to realize the rotation of the discharge pipe 3.

[0039] In this specific embodiment, an appearance cleaning connector 11 is also included. One end of the appearance cleaning connector 11 is connected to a flushing pump, and the other end can be connected to a flushing hose. When cleaning the appearance of the entire machine, the flushing hose is connected and the valve on the appearance cleaning connector 11 is opened to achieve appearance cleaning.

[0040] In this specific embodiment, a flow meter 12 is provided on the discharge pipe 3 , and a temperature sensor is provided in the feed pipe 2 .

[0041] The flow meter 12 accurately measures the flow rate and flow rate of concrete in the pipeline. Construction personnel can use this monitored flow data to promptly adjust the concrete delivery and placement speeds to ensure that concrete is poured according to the planned schedule. For example, during the production of precast components, if the concrete flow rate is too high or too low, construction personnel can promptly adjust the speed of the concrete pump to ensure the quality and dimensional accuracy of the precast components. Regarding temperature monitoring, temperature sensors can monitor concrete temperature changes in real time. Since concrete properties are closely related to temperature, construction personnel can take appropriate measures to adjust concrete properties when the temperature is too high or too low. For example, when the temperature is too high, the concrete temperature can be lowered by spraying cooling water, while when the temperature is too low, the concrete temperature can be raised by heating. Regarding the volume of concrete poured, volume sensors installed in the mold or construction area can accurately measure the volume of concrete already poured. Based on this volume data, construction personnel can rationally plan subsequent construction activities to ensure smooth project progress. By monitoring these key data, it is helpful to accurately control the construction quality and conduct scientific construction management, so that the entire concrete pouring project can be completed with high quality and high efficiency.

[0042] The double-tube track-type concrete placing machine in this embodiment, when it is necessary to carry out pipeline docking, the telescopic grouting pipe 4 and the telescopic flushing pipe 5 can cooperate with the rotating device 6 to automatically adjust the position and angle of the pipeline so that the interfaces of the main pipeline and the branch pipeline can be accurately aligned. This docking method realizes unmanned operation of gateway docking, and there is no need for manual pipeline docking, which greatly saves labor costs and time. In large-scale concrete pouring projects, such as in the construction of large-scale water conservancy projects or high-rise buildings, manual docking of pipelines often requires a lot of time and manpower, and is prone to operational errors. The use of the track-type docking and rapid material distribution technology of the present invention not only improves work efficiency, but also improves the accuracy and reliability of docking, ensuring the smooth progress of concrete pouring.

[0043] The cleaning process of the double-tube track-type concrete placing boom after grouting is as follows:

[0044] 1) Branch pipeline cleaning (after each grouting is completed):

[0045] The branch pipe is connected to the telescopic flushing pipe 5, and a mixture of compressed air and high-pressure water combined with a sponge cleaning ball is used to clean the branch pipe (the branch pipe is set on the object to be cast).

[0046] 2) Pipeline backwashing (after grouting is completed once per vehicle):

[0047] Backwashing with a sponge ball: Open feed pipe 2, move the trolley to the flushing pump position, place the sponge ball into the hole of telescopic grouting pipe 4, connect telescopic grouting pipe 4, telescopic flushing pipe 5, and flushing pump (not shown), open the water valve first, then the air valve, and use high-pressure water vapor to push the sponge ball along the main pipeline to the surface pipeline feed pipe 2, pushing out the concrete inside the main pipeline. After backwashing is complete, rotate the grouting head 90 degrees to a horizontal position and let it stand for 30 minutes to allow any remaining cement slurry in the pipe to flow out and avoid blockage.

[0048] 3) Use a ground pump truck to flush the main pipeline: After pouring is completed, connect the telescopic grouting pipe 4 and the bypass flushing hose, fill the ground pump truck with clean water, and use the ground pump truck to pump water into the pipeline twice to clean the concrete mortar in the pipeline.

[0049] 4) Telescopic tube cleaning:

[0050] After the main pipeline is backwashed, the telescopic grouting pipe 4 is thoroughly cleaned. Extend the telescopic pipe to its maximum stroke, connect the telescopic flushing pipe 5, and flush the inner wall of the telescopic pipe through the telescopic flushing pipe 5 to clean the concrete in the inner and outer pipes. During the cleaning process, extend and retract the telescopic pipe 3-5 times to clean the concrete mortar in the gap between the inner and outer pipes.

[0051] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A double-tube track-type material placing boom, characterized by: It includes a base, a feed pipe, a discharge pipe, a telescopic grouting pipe, a telescopic flushing pipe and a rotating device. The feed pipe is arranged at the tail end of the top of the base. The head end of the feed pipe is connected to the discharge pipe through a rotating joint. The end of the discharge pipe is connected to the telescopic flushing pipe. The discharge pipe is also connected to the telescopic flushing pipe. The telescopic grouting pipe and the telescopic flushing pipe can both be telescopic along the axial direction. The rotating device can control the discharge pipe to rotate around the axis.

2. The double-tube track-type material placing boom according to claim 1, characterized in that: A slider that cooperates with the ground guide rail is provided at the bottom of the base, and the base is driven to move by a linear module.

3. The double-tube track-type material placing boom according to claim 1, characterized in that: The discharge pipe is supported on the top of the base through a pipe rack.

4. The double-tube track-type material placing boom according to claim 1, characterized in that: The telescopic grouting pipe is connected to the discharge pipe through a bend pipe.

5. The double-tube track-type material placing boom according to claim 1, characterized in that: The telescopic grouting pipe is a hydraulic telescopic pipe structure.

6. The double-tube track-type material placing boom according to claim 1, characterized in that: The telescopic flushing pipe is a hydraulic telescopic pipe structure, and the bottom of the telescopic flushing pipe is connected to the flushing pump through a pipeline.

7. The double-tube track-type material placing boom according to claim 1, characterized in that: The slurry outlet of the telescopic grouting pipe and the liquid outlet of the telescopic flushing pipe can be communicated with each other through a pipeline.

8. The double-tube track-type material placing boom according to claim 1, characterized in that: The rotating device includes a motor and a transmission mechanism, and the motor drives the discharge pipe to rotate through the transmission mechanism.

9. The double-tube track-type material placing boom according to claim 1, characterized in that: It also includes an appearance cleaning connector, one end of which is connected to a flushing pump, and the other end of which can be connected to a flushing hose.

10. The double-tube track-type material placing boom according to claim 1, characterized in that: The discharge pipe is provided with a flow meter, and the feed pipe is provided with a temperature sensor.

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