Large-diameter sealing ring production equipment for shield tunneling machine

Abstract

The utility model belongs to the technical field of sealing ring processing, and particularly relates to a large-diameter sealing ring production device for a shield tunneling machine, which comprises a working table, a storage bin is connected above the working table through a mounting frame, a blanking pipe is fixedly connected at the bottom of the storage bin, an extrusion pipe is fixedly connected below the blanking pipe, and the extrusion pipe is fixedly connected with a sealing ring. And an auger is arranged in the extrusion pipe, a heating layer is arranged on the outer layer of the extrusion pipe, one end of the auger is connected with a first motor, and the bottom of the discharging pipe abuts against a first mounting base. According to the large-diameter sealing ring production equipment for the shield tunneling machine, a heat dissipation structure is arranged in the water tank, a second motor drives a rotating shaft and a threaded piece to rotate to promote water flowing, heat dissipation fins increase the heat dissipation area, the cooling performance of water in the water tank can be effectively maintained, an atomization nozzle in the cooling unit enables water to be sprayed out in a mist shape, the contact area with a sealing ring is increased, and the sealing ring is prevented from being damaged. The cooling uniformity is improved, stable operation of the cooling unit is guaranteed, and the cooling effect on the sealing ring is good.

Description

Technical Field

[0001] This utility model relates to the field of sealing ring processing technology, specifically to a sealing ring production equipment for large-diameter tunnel boring machines. Background Technology

[0002] When using large-diameter tunnel boring machines, the internal structure usually needs to be equipped with sealing rings to ensure a sealing effect and prevent mud and water from entering the inside. Large sealing rings are usually processed using sealing ring production equipment. The sealing ring is shaped by combining the upper mold and the lower mold. The formed sealing ring consists of cooked rubber, semi-cooked rubber and raw rubber from the center to both ends. A single forming is a part of a large-diameter sealing ring. After forming, the formed part is moved in the lower mold, so that the raw rubber at the end moves to the high-temperature area in the middle. This process is repeated to form a complete large-diameter sealing ring.

[0003] In the production equipment for sealing rings used in large-diameter tunnel boring machines, the extrusion unit lacks efficient cooling, making it difficult to quickly cool the extruded sealing rings. Because the temperature of the extruded sealing rings is high, if they cannot be cooled in time, the internal polymer material remains in an unstable flow state and cannot be quickly solidified and shaped.

[0004] To address this issue, we propose a sealing ring production equipment for large-diameter tunnel boring machines. Utility Model Content

[0005] The purpose of this invention is to provide a production equipment for sealing rings for large-diameter tunnel boring machines, in order to solve the problem mentioned in the background art that the extrusion device lacks an efficient cooling structure and is not convenient for quickly cooling the extruded sealing rings.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sealing ring production equipment for large-diameter tunnel boring machines, comprising a workbench, a storage bin connected above the workbench via a mounting frame, a feeding pipe fixedly connected to the bottom of the storage bin, an extrusion pipe fixedly connected below the feeding pipe, an auger inside the extrusion pipe, a heating layer on the outer layer of the extrusion pipe, a motor connected to one end of the auger, a mounting base abutting the bottom of the feeding pipe, the mounting base being threadedly connected to the workbench via bolts, a transport roller table on the left end of the extrusion pipe, and a cooling and drying mechanism on the transport roller table;

[0007] The cooling and drying mechanism includes a cooling unit and a drying unit;

[0008] The cooling unit includes a water-cooled frame, cooling water pipes, mounting base two, water distribution pipes, nozzles, and a water tank. The water tank is located at the bottom of the transport roller table. The water-cooled frame is fixedly connected to the left side of the transport roller table. One end of the cooling water pipe is connected to the water pump outlet inside the water tank, and the other end of the cooling water pipe is connected to the other side of the water tank. Multiple water distribution pipes are fixedly connected to the cooling water pipes, and the nozzles are fixedly connected to the bottom of the water distribution pipes.

[0009] Preferably, the water tank is equipped with a heat dissipation structure, which includes a second motor, a rotating shaft, threaded plates, and heat sinks. The second motor is fixedly connected to the left side of the water tank via a mounting plate. The rotating shaft is connected to the output end of the second motor. The threaded plates are located on the outside of the rotating shaft, and the heat sinks are fixedly connected to the back of the water tank. The second motor drives the rotating shaft to rotate, and the threaded plates rotate accordingly, promoting the flow of water in the water tank and accelerating heat dissipation. The heat sinks increase the heat dissipation area, further improving the heat dissipation effect, helping to maintain the cooling performance of the water in the tank, and ensuring the stable operation of the cooling unit.

[0010] Preferably, the drying unit includes a drying rack, an air pump, a drying chamber, an exhaust duct, an exhaust plate, an air outlet, a sliding seat, a filter screen, a heating strip, and a drying plate. The drying rack is located on the left side of the water-cooled rack, the air pump is located on the upper surface of the drying rack, and the air outlet of the air pump is connected to the inside of the drying chamber. Two sets of sliding seats are arranged in pairs inside the drying chamber. The filter screen and the drying plate are slidably connected to the sliding seats. The heating strip is located on the other side of the drying plate. One end of the exhaust duct is connected to the drying chamber, and the other end is connected to the exhaust plate. The air outlet is located at the bottom of the exhaust plate. The air pump sends air into the drying chamber, which is filtered by the filter screen, dried by the drying plate, and heated by the heating strip. Hot air is then blown out through the exhaust duct and the air outlet on the exhaust plate to dry the sealing ring. The sliding seat facilitates the installation and replacement of the filter screen and the drying plate, ensuring the drying effect.

[0011] Preferably, the surface of the transport roller table is provided with an anti-slip rubber layer, and the roller shaft of the transport roller table is mounted on the transport roller table support through a bearing seat. The bearing seat is filled with high-temperature resistant and wear-resistant grease, which can effectively prevent the sealing ring from slipping during transportation, while reducing the frictional resistance when the roller shaft rotates and reducing the energy consumption of the equipment.

[0012] Preferably, the nozzles on the water-cooling frame are atomizing nozzles. Atomizing nozzles can spray water in a fine mist, increasing the contact area between the water and the sealing ring, improving the cooling effect, and making the cooling of the sealing ring more uniform.

[0013] Preferably, the air outlet at the bottom of the exhaust plate is elongated. The elongated air outlet allows hot air to be blown evenly onto the sealing ring, improving drying efficiency and uniformity, and avoiding localized over- or under-drying.

[0014] Preferably, the screw pitch of the auger is smaller at the end near the feed pipe and gradually increases at the end near the extrusion pipe outlet, which can gradually increase the extrusion pressure on the material in the extrusion pipe and ensure uniform and stable extrusion of the material.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The sealing ring production equipment for this large-diameter tunnel boring machine features a heat dissipation structure inside the water tank. The motor drives the rotating shaft and threaded plates to rotate, promoting water flow. The heat dissipation fins increase the heat dissipation area, effectively maintaining the cooling performance of the water in the tank. The atomizing nozzles in the cooling unit spray water in a mist, increasing the contact area with the sealing ring, improving cooling uniformity, ensuring stable operation of the cooling unit, and providing excellent cooling effect for the sealing ring.

[0017] 2. The sealing ring production equipment for this large-diameter tunnel boring machine uses an air pump in the drying unit to send air into the drying chamber. After being filtered by a filter screen, dried by a drying plate, and heated by heating strips, the long strip-shaped air outlet blows hot air evenly onto the sealing ring, ensuring the drying effect, improving drying efficiency and uniformity, and avoiding local over- or under-drying. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall side structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the water-cooling structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the air-drying structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the side structure of the water tank of this utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the extrusion structure of this utility model.

[0023] In the diagram: 1. Workbench, 201. Mounting rack, 202. Storage bin, 203. Feed pipe, 3. Extrusion pipe, 301. Motor 1, 302. Screwdriver, 303. Heating layer, 304. Mounting base 1, 4. Water cooling rack, 401. Cooling water pipe, 402. Mounting base 2, 403. Water distribution pipe, 404. Nozzle, 5. Drying rack, 501. Air pump, 502. Drying box, 503. Exhaust pipe, 504. Exhaust plate, 505. Air outlet, 506. Sliding seat, 507. Filter plate, 508. Drying plate, 509. Heating strip, 6. Water tank, 601. Motor 2, 602. Rotary shaft, 603. Threaded plate, 604. Heat sink, 7. Transport roller table. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0025] In the production equipment for sealing rings used in large-diameter tunnel boring machines, the extrusion unit lacks efficient cooling, making it difficult to quickly cool the extruded sealing rings. Because the extruded sealing rings are at a high temperature, if they cannot be cooled in time, the internal polymer material remains in an unstable flow state and cannot quickly solidify and set. To solve this problem, please refer to [link to relevant documentation]. Figures 1-5 This utility model provides a technical solution: a sealing ring production equipment for large-diameter tunnel boring machines, including a workbench 1. A storage bin 202 is connected to the top of the workbench 1 via a mounting frame 201. A feeding pipe 203 is fixedly connected to the bottom of the storage bin 202 to store the raw materials for producing the sealing rings and to uniformly transport the raw materials to the extrusion pipe through the feeding pipe, ensuring continuous production. An extrusion pipe 3 is fixedly connected below the feeding pipe 203. An auger 302 is installed inside the extrusion pipe 3. The pitch of the auger 302 is smaller at the end near the feeding pipe 203 and gradually increases towards the outlet of the extrusion pipe 3. A heating layer 303 is provided on the outer layer of the extrusion pipe 3 to heat and plasticize the material, bringing it to a state suitable for extrusion molding, ensuring the physical properties and molding effect of the sealing ring. One end of the auger 302 is connected to a motor 301. The bottom of the feed pipe 203 abuts against a mounting base 304, which is bolted to the worktable 1. A transport roller table 7 is installed at the left end of the extrusion pipe 3. The surface of the transport roller table 7 is covered with an anti-slip rubber layer, and the roller shaft of the transport roller table 7 is mounted on the support of the transport roller table 7 via a bearing seat. The bearing seat is filled with high-temperature resistant and wear-resistant grease. The transport roller table 7 is equipped with a cooling and drying mechanism.

[0026] The cooling and drying mechanism includes a cooling unit and a drying unit;

[0027] The cooling unit includes a water-cooled frame 4, cooling water pipes 401, mounting base 402, water distribution pipes 403, nozzles 404, and a water tank 6. The water tank 6 is located at the bottom of the transport roller table 7. The water-cooled frame 4 is fixedly connected to the left side of the transport roller table 7. One end of the cooling water pipe 401 is connected to the water pump outlet inside the water tank 6, and the other end is connected to the other side of the water tank 6. Multiple water distribution pipes 403 are fixedly connected to the cooling water pipes 401. The nozzles 404 are fixedly connected to the bottom of the water distribution pipes 403. The nozzles 404 on the water-cooled frame 4 are atomizing nozzles. After atomizing the cooling water, they are evenly sprayed onto the surface of the sealing ring, increasing the contact area, improving cooling efficiency, and allowing the sealing ring to cool down and solidify quickly, preventing deformation.

[0028] The water tank 6 has an internal heat dissipation structure, which includes a second motor 601, a rotating shaft 602, a threaded plate 603, and heat sinks. The second motor 601 is fixedly connected to the left side of the water tank 6 via a mounting plate. The rotating shaft 602 is connected to the output end of the second motor 601. The threaded plate 603 is located on the outside of the rotating shaft 602, and the heat sinks are fixedly connected to the back of the water tank 6. Stirring the cooling water inside the water tank 6 promotes heat dissipation and prevents the water temperature from becoming too high, which could affect the cooling effect. Example

[0029] Based on Embodiment 1, the drying unit includes a drying rack 5, an air pump 501, a drying chamber 502, an exhaust pipe 503, an exhaust plate 504, an air outlet 505, a sliding seat 506, a filter screen 507, a heating strip 509, and a drying plate 508. The drying rack 5 is located on the left side of the water-cooled rack 4. The air pump 501 is located on the upper surface of the drying rack 5, and the air outlet of the air pump 501 is connected to the inside of the drying chamber 502. Two sets of sliding seats 506 are arranged in pairs inside the drying chamber 502. The filter screen 507 and the drying plate 508 are slidably connected to the inside of the sliding seat 506 to filter impurities in the air, prevent contamination of the sealing ring surface, absorb moisture from the air, and improve the drying effect of the hot air. The heating strip 509 is located on the other side of the drying plate 508. One end of the exhaust pipe 503 is connected to the drying chamber 502, and the other end of the exhaust pipe 503 is connected to the exhaust plate 504. The air outlet 505 is located at the bottom of the exhaust plate 504. The air outlet 505 at the bottom of the exhaust plate 504 is elongated. This allows hot air to evenly cover the surface of the sealing ring, improving drying efficiency and uniformity, and preventing incomplete drying or overheating that could damage the sealing ring.

[0030] Working principle: The storage hopper 202 is fixed above the workbench 1 via the mounting bracket 201 and is used to store the raw materials for sealing ring production. The raw materials enter the extrusion tube 3 through the feed pipe 203 connected at the bottom. The auger 302 inside the extrusion tube 3 rotates under the drive of the motor 301, which gradually increases the extrusion pressure on the material during the conveying process. At the same time, the heating layer 303 on the outer layer of the extrusion tube heats and plasticizes the material, bringing it to a suitable extrusion state, and finally extrudes it from the extrusion tube to form the initial shape of the sealing ring.

[0031] The extruded sealing ring falls onto the transport roller table 7. The anti-slip rubber layer on the surface of the roller table prevents the sealing ring from slipping. Its roller shaft is mounted on the bracket through a bearing seat. The bearing seat is filled with high-temperature resistant and wear-resistant grease to reduce rotational resistance. After the cooling unit is started, the water pump at the bottom of the water tank 6 draws water out, which flows into the water distribution pipe 403 through the cooling water pipe 401. Then, the atomizing nozzle 404 on the water cooling frame 4 sprays out atomized cooling water to increase the contact area with the sealing ring and quickly cool and solidify it.

[0032] In the heat dissipation structure inside the water tank, motor 601 drives the rotating shaft 602 and threaded plate 603 to rotate and stir the cooling water. This, combined with the heat dissipation fins on the back of the water tank, accelerates heat dissipation, maintains a stable water temperature, and ensures effective cooling. The cooled sealing ring moves to the drying unit via the transport roller table. Air pump 501 pumps air into the drying chamber 502. The air first passes through a filter screen 507 to filter impurities, and a drying plate 508 to absorb moisture. Then, it is heated by heating bars 509. The hot air is delivered through exhaust pipe 503 to exhaust plate 504, and then evenly blown onto the sealing ring through the long, narrow air outlet 505 at the bottom, achieving rapid and uniform drying and removing surface moisture.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A sealing ring production equipment for large-diameter tunnel boring machines, comprising a workbench (1), characterized in that: A storage bin (202) is connected above the workbench (1) via a mounting bracket (201). A feeding pipe (203) is fixedly connected to the bottom of the storage bin (202). An extrusion pipe (3) is fixedly connected below the feeding pipe (203). An auger (302) is installed inside the extrusion pipe (3). A heating layer (303) is installed on the outer layer of the extrusion pipe (3). A motor (301) is connected to one end of the auger (302). A mounting seat (304) is abutted against the bottom of the feeding pipe (203). The mounting seat (304) is connected to the workbench (1) by bolts and threads. A transport roller table (7) is installed at the left end of the extrusion pipe (3). A cooling and drying mechanism is installed on the transport roller table (7). The cooling and drying mechanism includes a cooling unit and a drying unit; The cooling unit includes a water cooling frame (4), a cooling water pipe (401), a mounting base (402), a water distribution pipe (403), a nozzle (404), and a water tank (6). The water tank (6) is located at the bottom of the transport roller table (7). The water cooling frame (4) is fixedly connected to the left side of the transport roller table (7). One end of the cooling water pipe (401) is connected to the water pump outlet inside the water tank (6), and the other end of the cooling water pipe (401) is connected to the other side of the water tank (6). There are multiple water distribution pipes (403) that are fixedly connected to the cooling water pipe (401). The nozzle (404) is fixedly connected to the bottom of the water distribution pipe (403).

2. The sealing ring production equipment for large-diameter tunnel boring machines according to claim 1, characterized in that: The water tank (6) is equipped with a heat dissipation structure, which includes a second motor (601), a rotating shaft (602), a threaded plate (603), and a heat sink. The second motor (601) is fixedly connected to the left side of the water tank (6) by a mounting plate. The rotating shaft (602) is connected to the output end of the second motor (601). The threaded plate (603) is located on the outside of the rotating shaft (602). The heat sink is fixedly connected to the back of the water tank (6).

3. The sealing ring production equipment for large-diameter tunnel boring machines according to claim 1, characterized in that: The drying unit includes a drying rack (5), an air pump (501), a drying chamber (502), an exhaust pipe (503), an exhaust plate (504), an air outlet (505), a sliding seat (506), a filter plate (507), a heating strip (509), and a drying plate (508). The drying rack (5) is located on the left side of the water-cooled rack (4), and the air pump (501) is located on the upper surface of the drying rack (5). The air outlet of the air pump (501) is connected to the inside of the drying chamber (502). The sliding seats (506) are arranged in pairs inside the drying chamber (502). The filter plate (507) and the drying plate (508) are slidably connected inside the sliding seats (506). The heating strip (509) is located on the other side of the drying plate (508). One end of the exhaust pipe (503) is connected to the drying chamber (502), and the other end of the exhaust pipe (503) is connected to the exhaust plate (504). The air outlet (505) is located at the bottom of the exhaust plate (504).

4. The sealing ring production equipment for large-diameter tunnel boring machines according to claim 1, characterized in that: The surface of the transport roller table (7) is provided with an anti-slip rubber layer, and the roller shaft of the transport roller table (7) is installed on the support of the transport roller table (7) through a bearing seat. The bearing seat is filled with high temperature resistant and wear resistant grease.

5. The sealing ring production equipment for large-diameter tunnel boring machines according to claim 1, characterized in that: The nozzle (404) on the water-cooled frame (4) is an atomizing nozzle (404).

6. The sealing ring production equipment for large-diameter tunnel boring machines according to claim 3, characterized in that: The air outlet (505) at the bottom of the exhaust plate (504) is elongated.

7. The sealing ring production equipment for large-diameter tunnel boring machines according to claim 1, characterized in that: The screw pitch of the auger (302) is small at the end near the feed pipe (203) and gradually increases at the end near the outlet of the extrusion pipe (3).

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