Wear-resistant and corrosion-resistant rubber cord fabric for shield construction

Abstract

The utility model relates to the technical field of rubber cord fabrics for shield construction, and discloses a wear-resistant anti-corrosion rubber cord fabric for shield construction, which comprises outer layer rubber, the bottom of the outer layer rubber is fixedly connected with nitrile rubber, and the bottom of the nitrile rubber is fixedly connected with chloroprene rubber. The metal connecting piece layer is located at the bottom of the cord fabric reinforcing layer and used for reliably connecting the rubber cord fabric with other components, in the assembling process of shield construction equipment, the rubber cord fabric needs to be accurately connected with other structural components of a shield tunneling machine, the metal connecting piece layer ensures the firmness of the connection, and the service life of the rubber cord fabric is prolonged. The rubber cord fabric is prevented from moving or falling off in the construction process, so that normal operation of a whole shield construction system is guaranteed, in shield construction, good sealing is very key to preventing underground water, mud and the like from permeating into a tunnel, tiny gaps can be filled with the inner-layer rubber, the sealing effect between the rubber cord fabric and other components is guaranteed, and the service life of the shield construction system is prolonged. And the safety and efficiency of shield construction are guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of rubber curtain fabric for shield tunneling, and in particular to a wear-resistant and corrosion-resistant rubber curtain fabric for shield tunneling. Background Technology

[0002] Rubber tarpaulin for tunnel boring machine (TBM) construction is a waterproof material used during TBM construction, primarily to protect the receiving fabric from erosion and damage by cement slurry. It possesses high elasticity and compressive deformation properties, enabling it to deform under various loads, thus providing an effective sealing effect. TBM rubber tarpaulin is typically molded from neoprene rubber using a vulcanizing machine, exhibiting excellent elasticity and abrasion resistance. The tarpaulin sheet consists of the tarpaulin sheet itself, circular rings, fan-shaped flaps, and corresponding connecting bolts and washers. These components require careful assembly during installation to ensure tight fit and coordinated operation between them.

[0003] There is an existing type of wear-resistant and corrosion-resistant rubber curtain for shield tunneling. The rubber curtain needs to withstand huge pressure and friction during shield tunneling. Especially during the advancement of the shield machine, the friction between the rubber curtain and the tunnel segments will cause wear. If the wear resistance of the rubber curtain is insufficient, it will wear out too quickly, thus affecting its sealing performance and overall service life. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a wear-resistant and corrosion-resistant rubber curtain for shield tunneling.

[0005] This utility model is achieved by the following technical solution: a wear-resistant and corrosion-resistant rubber curtain for shield tunneling construction, comprising an outer rubber layer, a nitrile rubber fixedly connected to the bottom of the outer rubber layer, a neoprene rubber fixedly connected to the bottom of the nitrile rubber, a curtain reinforcement layer fixedly connected to the bottom of the neoprene rubber, and aramid fiber fixedly connected to the bottom of the curtain reinforcement layer.

[0006] Through the above technical solution, the outermost layer of rubber, as the outermost layer, directly contacts the complex environment during shield tunneling. The presence of nitrile rubber and neoprene rubber greatly enhances the wear resistance and corrosion resistance. During shield tunneling, the rubber curtain may rub against soil, rock particles, etc. The wear-resistant properties of nitrile rubber can reduce wear and extend the service life of the rubber curtain.

[0007] As a further improvement to the above solution, an inner layer of adhesive is fixedly connected to the bottom of the aramid fiber, and a metal connector layer is fixedly connected to the bottom of the inner layer of adhesive.

[0008] As a further improvement to the above solution, the chloroprene rubber is located at the bottom of the outer rubber layer, and the nitrile rubber is located at the top of the fabric reinforcement layer.

[0009] The above technical solution addresses the potential presence of various corrosive substances in the construction environment. The corrosion resistance of neoprene rubber can prevent the rubber fabric from being eroded, ensuring the integrity of the structure.

[0010] As a further improvement to the above solution, the inner layer adhesive is located at the bottom of the aramid fiber, and the aramid fiber is located at the bottom of the neoprene rubber.

[0011] Through the above technical solutions, during the shield tunneling process, enormous pressure will be applied to the rubber cord fabric, such as lateral pressure from the soil. The high strength and high modulus properties of aramid fibers enable the rubber cord fabric to withstand these pressures without deformation, ensuring its sealing and protective functions in the shield tunnel.

[0012] As a further improvement to the above solution, the metal connector layer is located at the bottom of the fabric reinforcement layer.

[0013] As a further improvement to the above solution, the metal connector layer is used to reliably connect the rubber curtain to other components.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention features a metal connector layer located at the bottom of the fabric reinforcement layer to reliably connect the rubber fabric to other components. During the assembly of tunnel boring machine (TBM) equipment, the rubber fabric needs to be accurately connected to other structural components. The metal connector layer ensures the strength of this connection, preventing displacement or detachment of the rubber fabric during construction, thus guaranteeing the normal operation of the entire TBM system. In TBM construction, good sealing is crucial to preventing groundwater and mud from seeping into the tunnel. The inner adhesive layer fills tiny gaps, ensuring a tight seal between the rubber fabric and other components, thereby guaranteeing the safety and efficiency of TBM construction.

[0016] This invention features a metal connector layer located at the bottom of the fabric reinforcement layer to reliably connect the rubber fabric to other components. This ensures the integrity and stability of the entire structure, allowing the rubber fabric to be accurately installed on the corresponding equipment or device and to function stably during use, thus increasing the stability after connection. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the frontal anatomical structure of the present invention;

[0019] Figure 3 This is an enlarged schematic diagram of the structure at point A of this utility model;

[0020] Figure 4 This is a schematic diagram of the outer adhesive layer structure of this utility model.

[0021] Explanation of key symbols:

[0022] 1. Outer layer adhesive; 11. Nitrile rubber; 12. Neoprene rubber; 2. Cord reinforcement layer; 21. Aramid fiber; 3. Inner layer adhesive; 4. Metal connector layer. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] Example:

[0025] Please combine Figures 1-4 This embodiment describes a wear-resistant and corrosion-resistant rubber curtain for tunnel boring machine (TBM) construction. It includes an outer rubber layer 1, with nitrile rubber 11 fixedly connected to the bottom of the outer rubber layer 1. A neoprene rubber 12 is fixedly connected to the bottom of the nitrile rubber 11, and a curtain reinforcement layer 2 is fixedly connected to the bottom of the neoprene rubber 12. Aramid fiber 21 is fixedly connected to the bottom of the curtain reinforcement layer 2. A metal connector layer 4 is located at the bottom of the curtain reinforcement layer 2 to reliably connect the rubber curtain to other components. During the assembly of the TBM construction equipment, the rubber curtain needs to be accurately connected to other structural components of the TBM. The metal connector layer 4 ensures the strength of this connection, preventing displacement or detachment of the rubber curtain during construction, thus ensuring the normal operation of the entire TBM construction system. In TBM construction, good sealing is crucial to prevent groundwater and mud from seeping into the tunnel. The inner rubber layer 3 fills tiny gaps, ensuring a good seal between the rubber curtain and other components, guaranteeing the safety and efficiency of TBM construction.

[0026] Through the above technical solution, the outermost layer 1, as the outermost layer, directly contacts the complex environment during shield tunneling. The presence of nitrile rubber 11 and neoprene rubber 12 greatly enhances the wear resistance and corrosion resistance. During shield tunneling, the rubber curtain may continuously rub against soil, rock particles, etc. The wear resistance of nitrile rubber 11 can reduce wear and extend the service life of the rubber curtain.

[0027] An inner layer of adhesive 3 is fixedly connected to the bottom of the aramid fiber 21, and a metal connector layer 4 is fixedly connected to the bottom of the inner layer of adhesive 3. By setting the metal connector layer 4 at the bottom of the fabric reinforcement layer 2, the rubber fabric is reliably connected to other components. This ensures the integrity and stability of the entire structure, enabling the rubber fabric to be accurately installed on the corresponding equipment or device, and to stably perform its function during use, thus increasing the stability after connection.

[0028] Chloroprene rubber 12 is located at the bottom of the outer rubber layer 1, and nitrile rubber 11 is located at the top of the fabric reinforcement layer 2.

[0029] The construction environment may contain various corrosive substances. The corrosion resistance of chloroprene rubber 12 can prevent the rubber cord from being eroded and ensure the integrity of the structure.

[0030] The inner layer rubber 3 is located at the bottom of the aramid fiber 21, and the aramid fiber 21 is located at the bottom of the chloroprene rubber 12.

[0031] During shield tunneling, enormous pressure is applied to the rubber cord fabric, such as lateral pressure from the soil. The high strength and high modulus of aramid fiber 21 enable the rubber cord fabric to withstand these pressures without deformation, ensuring its sealing and protective functions in the shield tunnel.

[0032] The metal connector layer 4 is located at the bottom of the fabric reinforcement layer 2.

[0033] Metal connector layer 4 is used to reliably connect the rubber curtain to other components.

[0034] The implementation principle of a wear-resistant and corrosion-resistant rubber curtain for shield tunneling in this embodiment is as follows: A metal connector layer 4 is set at the bottom of the curtain reinforcement layer 2 to reliably connect the rubber curtain to other components. During the assembly of shield tunneling equipment, the rubber curtain needs to be accurately connected to other structural components of the shield machine. The metal connector layer 4 ensures the firmness of this connection, preventing displacement or detachment of the rubber curtain during construction, thereby ensuring the normal operation of the entire shield tunneling system. In shield tunneling, good sealing is crucial to prevent groundwater and mud from seeping into the tunnel. The inner rubber layer 3 fills tiny gaps, ensuring a sealing effect between the rubber curtain and other components, guaranteeing the safety and efficiency of shield tunneling. By setting the metal connector layer 4 at the bottom of the curtain reinforcement layer 2 to reliably connect the rubber curtain to other components, the integrity and stability of the entire structure are ensured, allowing the rubber curtain to be accurately installed on the corresponding equipment or device and to stably perform its function during use, increasing the stability after connection. The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A wear-resistant and corrosion-resistant rubber curtain for shield tunneling construction, characterized in that, It includes an outer layer adhesive (1), the bottom of which is fixedly connected to a nitrile rubber (11), the bottom of which is fixedly connected to a neoprene rubber (12), the bottom of which is fixedly connected to a fabric reinforcement layer (2), and the bottom of which is fixedly connected to an aramid fiber (21).

2. The wear-resistant and corrosion-resistant rubber curtain for shield tunneling construction as described in claim 1, characterized in that: The bottom of the aramid fiber (21) is fixedly connected to an inner layer adhesive (3), and the bottom of the inner layer adhesive (3) is fixedly connected to a metal connector layer (4).

3. The wear-resistant and corrosion-resistant rubber curtain for shield tunneling construction as described in claim 1, characterized in that: The chloroprene rubber (12) is located at the bottom of the outer rubber layer (1), and the nitrile rubber (11) is located at the top of the fabric reinforcement layer (2).

4. The wear-resistant and corrosion-resistant rubber curtain for shield tunneling construction as described in claim 2, characterized in that: The inner layer adhesive (3) is located at the bottom of the aramid fiber (21), which is located at the bottom of the chloroprene rubber (12).

5. The wear-resistant and corrosion-resistant rubber curtain for shield tunneling construction as described in claim 4, characterized in that: The metal connector layer (4) is located at the bottom of the fabric reinforcement layer (2).

6. The wear-resistant and corrosion-resistant rubber curtain for shield tunneling construction as described in claim 5, characterized in that: The metal connector layer (4) is used to reliably connect the rubber curtain to other components.

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