Subway single crossover shield tunneling machine propelling device

Abstract

The utility model discloses a subway single crossover shield tunneling machine propelling device which comprises a hydraulic cylinder body, a base is fixed to the bottom of a cylinder body of the hydraulic cylinder body, a circulating pump is fixed to the base, a cooling pipe is wound on the outer side of the cylinder body of the hydraulic cylinder body, and the two ends of the cooling pipe are connected with a liquid inlet pipe and a liquid return pipe in a sealed mode respectively. The liquid inlet pipe is connected with the liquid inlet end of the circulating pump in a sealed mode, the liquid return pipe is connected with the liquid outlet end of the circulating pump in a sealed mode, a support is further fixed to the cylinder body of the hydraulic cylinder body, and a plurality of cooling fans are fixedly embedded into the support. According to the propelling device of the subway single crossover shield tunneling machine, the hydraulic cylinder body can be continuously and efficiently cooled, high-temperature operation of the hydraulic cylinder body is avoided, the good working performance of the hydraulic cylinder body is kept, the service life of the hydraulic cylinder body is prolonged, and therefore the working efficiency of the shield tunneling machine is improved, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of tunnel boring machine propulsion devices, specifically a single-crossover tunnel boring machine propulsion device for subways. Background Technology

[0002] The main function of a crossover track in a subway is to connect two parallel tracks, allowing trains traveling on one route to switch tracks to another. This facility is crucial in rail transit because it allows trains to change direction or route when needed. Crossover tracks in subway tunnels are primarily constructed using tunnel boring machines (TBMs). TBMs are propelled by hydraulic cylinders. During operation, the hydraulic cylinders convert hydraulic energy into mechanical energy. However, some energy is lost as heat during this conversion. If the hydraulic cylinder's workload is too heavy or its operating time is too long, energy loss increases, leading to overheating. Traditional TBM propulsion devices use hydraulic cylinders that lack efficient heat dissipation capabilities, resulting in slow heat dissipation. Especially in tunnels with poor air circulation, prolonged operation at high temperatures not only affects the cylinder's performance but also shortens its lifespan, reducing the TBM's efficiency and increasing maintenance costs.

[0003] To address the aforementioned issues, we propose a single-crossover shield tunneling machine propulsion device for subways, which improves upon the shortcomings of existing technologies. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a propulsion device for a single-crossing tunnel boring machine in a subway. To solve the above-mentioned technical problem, this utility model provides the following technical solution:

[0005] This utility model discloses a propulsion device for a single-crossing tunnel boring machine in a subway, comprising a hydraulic cylinder body. A base is fixed to the bottom of the cylinder body, and a circulating pump is fixed on the base. A cooling pipe is wound around the outside of the cylinder body, and an inlet pipe and a return pipe are respectively sealed to both ends of the cooling pipe. The inlet pipe is sealed to the inlet end of the circulating pump, and the return pipe is sealed to the outlet end of the circulating pump. A bracket is also fixed on the cylinder body of the hydraulic cylinder body, and multiple cooling fans are embedded and fixed on the bracket.

[0006] Preferably, the inner surface of the cooling pipe is open, and the inner surface of the cooling pipe is sealed and fixed to the cylinder body of the hydraulic cylinder, and both ends of the cooling pipe are sealed.

[0007] Preferably, a plurality of heat sinks are fitted and fixed on the return pipe, and an injection pipe is also connected to the return pipe.

[0008] Preferably, the exhaust end of the cooling fan is directly facing the return pipe.

[0009] Preferably, mounting holes are provided at the four corners of the base.

[0010] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0011] By winding cooling pipes around the outside of the hydraulic cylinder body and installing a circulation pump on the base, the cooling pipes are connected to the circulation pump via inlet and outlet pipes. A cooling fan is installed above the outlet pipe to inject coolant into the cooling pipes. The coolant absorbs heat from the hydraulic cylinder body, and the circulation pump circulates the coolant. Combined with the cooling fan's airflow, the temperature of the coolant can be effectively reduced. This design allows the coolant to continuously absorb heat and cool down. The subway single-crossing tunnel boring machine propulsion device with this structure can continuously and efficiently cool the hydraulic cylinder body, preventing it from operating at high temperatures, maintaining good working performance, extending its service life, thereby improving the working efficiency of the tunnel boring machine and reducing maintenance costs. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a three-dimensional structural diagram of a partially cut section of the cooling pipe in this utility model.

[0015] In the diagram: 1. Hydraulic cylinder body; 2. Base; 3. Circulation pump; 4. Cooling pipe; 5. Inlet pipe; 6. Return pipe; 7. Bracket; 8. Radiator fan; 9. Injection pipe; 10. Heat sink; 11. Mounting hole. Detailed Implementation

[0016] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0017] Example

[0018] like Figure 1-2As shown, a single-track tunnel boring machine (TBM) propulsion device for a metro includes a hydraulic cylinder body 1. A base 2 is fixed to the bottom of the cylinder body 1, and a circulation pump 3 is fixed on the base 2. A cooling pipe 4 is wound around the outside of the cylinder body 1. An inlet pipe 5 and a return pipe 6 are respectively sealed to both ends of the cooling pipe 4. The inlet pipe 5 is sealed to the inlet end of the circulation pump 3, and the return pipe 6 is sealed to the outlet end of the circulation pump 3. A bracket 7 is also fixed on the cylinder body of the hydraulic cylinder body 1. Multiple cooling fans 8 are embedded and fixed on the bracket 7 to efficiently cool the hydraulic cylinder of the single-track TBM propulsion device, prevent it from operating at high temperatures, maintain good working performance, and improve its service life, thereby improving the working efficiency of the TBM and reducing maintenance costs.

[0019] In this embodiment, the inner surface of the cooling pipe 4 is open, and the inner surface of the cooling pipe 4 is sealed and attached to the cylinder of the hydraulic cylinder body 1. The two ends of the cooling pipe 4 are sealed, allowing the coolant to flow directly onto the cylinder of the hydraulic cylinder body 1, which can directly absorb the heat on the hydraulic cylinder body 1 and achieve efficient cooling.

[0020] In this embodiment, a plurality of heat sinks 10 are sleeved and fixed on the return pipe 6 to accelerate the heat dissipation of the coolant, and the return pipe 6 is also connected to an injection pipe 9 for injecting coolant into the cooling pipe 4.

[0021] In this embodiment, the exhaust end of the cooling fan 8 is directly facing the return pipe 6 to blow air and cool it down, thereby further improving its heat dissipation speed.

[0022] In this embodiment, mounting holes 11 are provided at the four corners of the base 2 to facilitate the installation of the hydraulic cylinder body 1 on the tunnel boring machine.

[0023] The principle and advantages of this utility model are as follows: Open the sealing cap on the injection pipe 9, pour the coolant into the return pipe 6 until the coolant fills the cooling pipe 4, the inlet pipe 5, and the return pipe 6. Then tighten the sealing cap on the injection pipe 9 to seal it. Then, use bolts to install the base 2 on the tunnel boring machine. Then, connect the hydraulic cylinder body 1 to the hydraulic pump, and connect the hydraulic pump, the circulation pump 3, and the cooling fan 8 to the control end of the tunnel boring machine. This allows the hydraulic cylinder body 1 to start and stop synchronously with the circulation pump 3 and the cooling fan 8. When the hydraulic cylinder body 1 generates heat during operation, the coolant in the cooling pipe 4 absorbs the heat from the cylinder body of the hydraulic cylinder body 1. The coolant circulates in the cooling pipe 4, the inlet pipe 5, and the return pipe 6. The cooling fan 8 blows air onto the return pipe 6 to dissipate heat, and the heat sink 10 on the return pipe 6 also increases the heat dissipation rate, thus allowing the heat in the coolant to dissipate. After cooling, the coolant is then sent to the cooling pipe 4 by the circulating pump 3 to absorb heat. This cycle is used to absorb heat and cool the hydraulic cylinder body 1. The subway single-crossing shield tunneling machine propulsion device with this structural design can continuously and efficiently cool the hydraulic cylinder body 1, preventing it from operating at high temperatures, maintaining good working performance, and extending its service life. This improves the working efficiency of the shield tunneling machine and reduces maintenance costs.

[0024] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A propulsion device for a single-crossover tunnel boring machine in a subway, comprising a hydraulic cylinder body (1), characterized in that: The bottom of the cylinder body (1) of the hydraulic cylinder is fixed with a base (2), and a circulation pump (3) is fixed on the base (2). A cooling pipe (4) is wrapped around the outside of the cylinder body of the hydraulic cylinder (1). The two ends of the cooling pipe (4) are respectively sealed and connected to an inlet pipe (5) and a return pipe (6). The inlet pipe (5) is sealed and connected to the inlet end of the circulation pump (3), and the return pipe (6) is sealed and connected to the outlet end of the circulation pump (3). A bracket (7) is also fixed on the cylinder body of the hydraulic cylinder (1), and multiple cooling fans (8) are embedded and fixed on the bracket (7).

2. The subway single-crossover tunnel boring machine propulsion device as described in claim 1, characterized in that: The inner surface of the cooling pipe (4) is open, and the inner surface of the cooling pipe (4) is sealed and fixed to the cylinder of the hydraulic cylinder body (1), and both ends of the cooling pipe (4) are sealed.

3. The subway single-crossover shield tunneling machine propulsion device as described in claim 1, characterized in that: Multiple heat sinks (10) are fitted and fixed on the return pipe (6), and an injection pipe (9) is also connected to the return pipe (6).

4. The subway single-crossover shield tunneling machine propulsion device as described in claim 1, characterized in that: The exhaust end of the cooling fan (8) is directly facing the return pipe (6).

5. The subway single-crossover tunnel boring machine propulsion device as described in claim 1, characterized in that: The base (2) has mounting holes (11) at its four corners.

Images