Vulcanization tool for shield main drive sealing element

Abstract

The utility model relates to a vulcanizing tool for a shield main drive sealing element, which is used for vulcanizing and connecting two adjacent sealing elements and comprises a left end seat and a right end seat, vulcanizing grooves matched with the sealing elements are arranged on the left end seat and the right end seat, and the vulcanizing grooves communicated with each other are arranged on the left end seat and the right end seat. The left end seat and the right end seat can be mutually tensioned along the direction of the vulcanizing tank; the end seat cover is arranged on the vulcanizing tank in a covering manner and can be synchronously tensioned with the left end seat and the right end seat; the temperature control device is arranged on the left end seat or the right end seat and can control the temperature of the left end seat and the right end seat; the two adjacent sealing elements are placed in the vulcanization grooves, and the distance between the two adjacent sealing elements placed in the vulcanization grooves in the left end seat and the right end seat is controlled by tensioning the left end seat and the right end seat, so that the end part of the joint of the two sealing elements reaches the optimal vulcanization length; and then the sealing elements in the vulcanizing tank are heated to the vulcanizing temperature through the temperature control device, and vulcanizing of the two adjacent sealing elements is achieved.

Description

Technical Field

[0001] The utility model relates to the field of shield construction engineering, in particular to a vulcanization tool for a shield main drive seal. Background Art

[0002] Due to its high efficiency, safety and reliability, shield tunnel construction technology has been rapidly developed in various engineering practices such as urban subways, municipal roads, and water diversion. In particular, slurry shields are widely used in underwater tunnel construction on the seabed or across rivers. However, shield construction will inevitably encounter high water pressure, long distances and complex geological conditions. Under extremely complex working conditions, the main drive seal may fail, and maintenance work has to be completed in the warehouse.

[0003] The main drive seal is generally a circular ring, which is installed in the main drive as a whole ring in the factory, and then the cutter disc is installed on its outer flange. However, when the seal fails during shield construction and is repaired, the cutter disc is generally underground after the seal is removed. The main drive seal cannot be installed as a whole ring and needs to be cut into multiple sections. Each section is installed on the main drive separately. However, segmented installation will reduce the sealing between the sections and create a risk of leakage. Utility Model Content

[0004] The purpose of the utility model is to overcome the defects of the prior art and provide a vulcanization tool for a shield main drive seal, so as to solve the problem that the existing main drive seal is generally a circular ring, which is installed in the main drive in the factory as a whole ring, and then the cutter disc is installed on the outer flange thereof. However, when the seal fails during shield construction and is repaired, the cutter disc is generally underground after the seal is removed, and the main drive seal cannot be installed as a whole ring. It needs to be cut into multiple sections, and each section is installed separately on the main drive. The segmented installation will reduce the sealing between the sections and cause the risk of leakage.

[0005] The technical solution to achieve the above purpose is:

[0006] The utility model provides a vulcanization tool for a shield main drive seal, which is used for vulcanizing and connecting two adjacent seals, and comprises:

[0007] A left end seat and a right end seat, wherein the left end seat and the right end seat are provided with a vulcanization groove matched with the sealing element, and the left end seat and the right end seat are provided with the vulcanization grooves connected to each other, and the left end seat and the right end seat can be tightened to each other along the direction of the vulcanization groove;

[0008] An end seat cover is arranged on the vulcanization tank, and the end seat cover can be tightened synchronously with the left end seat and the right end seat;

[0009] A temperature control device is arranged on the left end seat or the right end seat, and the temperature control device can control the temperature of the left end seat and the right end seat.

[0010] A further improvement of the vulcanization tool of the shield main drive seal of the utility model is that an adjusting member is provided between the left end seat and the right end seat, and the adjusting member can tighten the left end seat and the right end seat.

[0011] A further improvement of the vulcanization tool of the shield main drive seal of the utility model is that the left end seat and the right end seat are provided with through holes connected to each other, and the adjusting member is an adjusting bolt inserted in the through hole, and the adjusting bolt can adjust the distance between the left end seat and the right end seat.

[0012] A further improvement of the vulcanization tool of the shield main drive seal of the utility model is that it also includes a first gasket or a second gasket clamped between the left end seat and the right end seat, the first gasket is thicker than the second gasket, and the thickness of the first gasket or the second gasket is the distance between the left end seat and the right end seat.

[0013] A further improvement of the vulcanization tool of the shield main drive seal of the utility model is that the end seat cover comprises: a left end cover and a right end cover;

[0014] The left end cover and the right end cover are detachably fixed on the left end seat and the right end seat respectively.

[0015] A further improvement of the vulcanization tool of the shield main drive seal of the utility model is that the left end cover can be split into multiple sections.

[0016] A further improvement of the vulcanization tool of the shield main drive seal of the utility model is that the temperature control device comprises: a heating wire and a temperature sensor;

[0017] The heating wire is inserted into the left end seat or the right end seat, and the heating wire can heat the left end seat and the right end seat;

[0018] The temperature sensor is inserted into the left end seat or the right end seat, and the temperature sensor is used to monitor the temperature of the left end seat and the right end seat.

[0019] A further improvement of the vulcanization tool for the shield main drive seal of the utility model is that there are a plurality of heating wires, and the heating wires are also inserted on the end seat cover.

[0020] A further improvement of the vulcanization tool of the shield main drive seal of the utility model is that a hole parallel to the vulcanization groove is provided on the left end seat or the right end seat, and the temperature sensor is screwed into the hole.

[0021] A further improvement of the vulcanization tool for the shield main drive seal of the utility model is that it also comprises a molded raw rubber sheet, and the molded raw rubber sheet is sandwiched between two adjacent seals.

[0022] The beneficial effects of the utility model are as follows: two adjacent seals are placed in the vulcanization groove by tightening the left end seat and the right end seat which are provided with the vulcanization groove, and the distance between the two adjacent seals placed in the vulcanization groove on the left end seat and the right end seat is controlled by tightening the left end seat and the right end seat, so that the ends where the two seals are connected reach the optimal vulcanization length, and then the seals in the vulcanization groove are heated to the vulcanization temperature by the temperature control device to realize the vulcanization of the two adjacent seals, and the vulcanization length is controlled by controlling the distance between the two adjacent seals, so as to improve the sealing performance of the seal after vulcanization. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a stereoscopic view of a vulcanization tool for the shield main drive seal of the utility model.

[0024] Figure 2 This is an exploded view of the vulcanization tool for the shield main drive seal of the utility model.

[0025] Figure 3 This is a stereoscopic diagram of the gasket arrangement in the vulcanization tool of the shield main drive seal of the utility model.

[0026] Figure 4 The utility model is a three-dimensional vulcanization tool for the shield main drive seal Figure 2 .

[0027] Figure 5 This is a cross-sectional view of a raw rubber sheet formed in a vulcanization tool for a shield main drive seal of the utility model.

[0028] 21. Molded raw rubber sheet; 22. Vulcanizing tank; 23. Left end seat; 24. Right end seat; 25. Gasket; 32. Left end cover; 33. Right end cover; 41. Temperature control device; 42. Heating wire; 43. Temperature sensor; 51. Sealing element. DETAILED DESCRIPTION

[0029] The utility model provides a vulcanizing tool for a shield main drive seal, which solves the problem that the existing main drive seal is generally a circular ring, which is installed in the main drive in a whole ring in the factory, and then a cutter disc is installed on the outer flange thereof. However, when the seal fails for maintenance during shield construction, the cutter disc is generally underground after the seal is removed, and the main drive seal cannot be installed in a whole ring. It needs to be cut into multiple sections, and each section is separately installed on the main drive. The segmented installation will reduce the sealing between the sections, resulting in the risk of leakage.

[0030] The left end seat and the right end seat provided with the vulcanization groove are tensioned to place two adjacent seals in the vulcanization groove. The distance between the two adjacent seals placed in the vulcanization groove on the left end seat and the right end seat is controlled by tensioning the left end seat and the right end seat, so that the ends where the two seals are connected reach the optimal vulcanization length. The seals in the vulcanization groove are heated to the vulcanization temperature by the temperature control device to realize the vulcanization of the two adjacent seals. The vulcanization length is controlled by controlling the distance between the two adjacent seals, so as to improve the sealing performance of the seal after vulcanization.

[0031] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0032] See also Figure 1 , showing a stereoscopic view of a vulcanization tool for the shield main drive seal of the utility model. Figure 2 , showing an exploded view of the vulcanization tool for the shield main drive seal of the utility model.

[0033] Combination Figure 1 and Figure 2 As shown, the vulcanization tool of the shield main drive seal of the utility model includes: a left end seat 23, a right end seat 24, an end seat cover, and a temperature control device 41.

[0034] The left end seat 23 and the right end seat 24 are provided with a vulcanization groove 22 matched with the seal 51. The left end seat 23 and the right end seat 24 can be tightened together along the direction of the vulcanization groove 22. The ends of the two adjacent seals 51 are placed in the vulcanization groove 22. The two seals 51 are located on the same straight line. The end seat cover is arranged on the vulcanization groove 22. The end seat cover can be tightened synchronously with the left end seat 23 and the right end seat 24. The temperature control device 41 is arranged on the left end seat 23 or the right end seat 24. The temperature control device 41 can control the left end seat 23 and the right end seat 24. The temperature inside the end seat 24 is raised to the temperature of the vulcanization reaction, and the ends of the two adjacent seals 51 are vulcanized and connected into one. Before vulcanization, the left end seat 23 and the right end seat 24 are tightened to make the two adjacent seals 51 placed in the vulcanization tank 22 fit more tightly, thereby controlling the vulcanization length of the two adjacent seals 51. When placing the two adjacent seals 51, it is preferred to sandwich a molded raw rubber sheet 21 between the two seals 51 to further ensure the vulcanization effect.

[0035] Furthermore, in a preferred embodiment of the vulcanization tool of the shield main drive seal of the utility model, an adjusting member is provided between the left end seat 23 and the right end seat 24, and the adjusting member can adjust the distance between the left end seat 23 and the right end seat 24, tighten the left end seat 23 and the right end seat 24, and is used to control the vulcanization length of two adjacent seals 51 in the vulcanization groove 22, thereby improving the stability of vulcanization.

[0036] Preferably, in a preferred embodiment of the vulcanization tool of the shield main drive seal of the utility model, the left end seat 23 and the right end seat 24 are provided with through holes connected to each other, and the adjusting member is an adjusting bolt inserted in the through hole, and the adjusting bolt can adjust the distance between the left end seat 23 and the right end seat 24. Specifically, the through hole on the left end seat 23 does not have an internal thread, and the through hole on the right end seat 24 has an internal thread. The adjusting bolt is inserted from the left end seat 23 into the right end seat 24, and cooperates with the internal thread in the through hole on the right end seat 24. The distance adjustment between the left end seat 23 and the right end seat 24 is achieved by screwing the adjusting bolt. Other equivalent and replaceable adjustment methods are also within the protection scope of the utility model and will not be repeated here.

[0037] See also Figure 3 , showing a stereoscopic view of the arrangement of the gasket 25 in the vulcanization tool of the shield main drive seal of the utility model. Figure 5 , showing a cross-sectional view of the molded raw rubber sheet in the vulcanization tool of the shield main drive seal of the utility model.

[0038] Combination Figure 3 and Figure 5 As shown, in a preferred embodiment of the vulcanization tool of the shield main drive seal of the utility model, it also includes a gasket 25 sandwiched between the left end seat 23 and the right end seat 24, and the thickness of the gasket 25 is the distance between the left end seat 23 and the right end seat 24. By selecting a plurality of gaskets 25 of different thicknesses, the distance between the left end seat 23 and the right end seat 24 can be accurately adjusted, thereby accurately controlling the vulcanization length of two adjacent seals 51. However, before adjusting the spacing between the left end seat 23 and the right end seat 24 by adjusting the bolt, it is necessary to first remove the first gasket previously sandwiched between the two, and after removing the thicker first gasket, the thinner second gasket is sandwiched between the left end seat 23 and the right end seat 24. The thinner second gasket can provide a smaller spacing, and this step is to ensure that the adjusting bolt can accurately control the spacing between the left end seat 23 and the right end seat 24. By replacing the gaskets 25 of different thicknesses, the left end seat 23 and the right end seat 24 are precisely tightened according to the requirements of the vulcanization process to ensure the high efficiency and reliability of the vulcanization process.

[0039] After replacing the gasket 25, you can start to adjust the distance between the left end seat 23 and the right end seat 24 by adjusting the bolts. This operation needs to be done carefully, always pay attention to the change of the distance, and make fine adjustments as needed. When the left end seat 23 and the right end seat 24 are both supported by the gasket 25, you can stop adjusting to achieve the stability of vulcanization. When placing two adjacent seals 51, it is better to sandwich a molded raw rubber sheet 21 between the two seals 51 to further ensure the effect of vulcanization.

[0040] See also Figure 4 , showing the three-dimensional vulcanization tool of the shield main drive seal of the utility model Figure 2 .

[0041] like Figure 4 As shown, the end seat cover in the vulcanization tool of the shield main drive seal of the utility model includes: a left end cover 32 and a right end cover 33, and the left end cover 32 and the right end cover 33 are detachably fixed on the left end seat 23 and the right end seat 24 respectively, so that the left end cover 32 and the right end cover 33 can adjust the length as the length of the left end seat 23 and the right end seat 24 is adjusted, so that they can stably cover the vulcanization grooves 22 on the left end seat 23 and the right end seat 24, thereby ensuring the stability and controllability of the vulcanization reaction.

[0042] Furthermore, in a preferred embodiment of the vulcanization tool of the shield main drive seal of the utility model, the left end cover 32 can be further split into multiple sections, and each section can be detachably fixed on the left end seat 23 separately, so as to avoid stress concentration caused by the overall force on the left end cover 32, resulting in damage to a certain part, affecting the safety of the vulcanization reaction and the durability of the left end cover 32. The left end cover 32 is divided into multiple sections, so that each section is subjected to force separately, which disperses the force-bearing parts, avoids stress concentration, improves the stability of the left end cover 32, and improves the safety of the vulcanization reaction and the durability of the left end cover 32.

[0043] Preferably, the temperature control device 41 in the vulcanization tool of the shield main drive seal of the utility model comprises: a heating wire 42 and a temperature sensor 43,

[0044] The heating wire 42 is inserted into the left end seat 23 or the right end seat 24, and the heating wire 42 can heat the left end seat 23 and the right end seat 24. The heating wire 42 makes the two adjacent seals 51 in the vulcanization tank 22 on the left end seat 23 and the right end seat 24 reach the vulcanization temperature. The temperature sensor 43 is inserted into the left end seat 23 or the right end seat 24, and the temperature sensor 43 is used to monitor the temperature of the left end seat 23 and the right end seat 24. Since the volume of the left end seat 23 and the right end seat 24 is relatively small, the temperature difference at various positions of the left end seat 23 and the right end seat 24 can be ignored, and then the temperature sensor 43 can monitor the temperature of the vulcanization tank 22 to ensure that the temperature remains within the range of the vulcanization reaction, prevent the reaction failure and damage to the seal 51 caused by excessive temperature, and ensure the safety of the vulcanization tool of the shield main drive seal of the utility model.

[0045] Furthermore, in a preferred embodiment of the vulcanization tool of the shield main drive seal of the utility model, there are multiple heating wires 42, and the heating wires 42 are also inserted into the end seat cover to improve the heating efficiency of the vulcanization tool of the shield main drive seal of the utility model.

[0046] Furthermore, in a preferred embodiment of the vulcanization tool of the shield main drive seal of the utility model, a hole parallel to the vulcanization tank is provided on the left end seat or the right end seat, and the temperature sensor is screwed into the hole, which can more accurately measure the temperature in the vulcanization tank and improve the vulcanization effect.

[0047] The following is a further description of the method of using the vulcanization tool for the shield main drive seal of the utility model in conjunction with the accompanying drawings.

[0048] First, it is necessary to prepare a vulcanization tool for the shield main drive seal. This vulcanization tool includes a sturdy and durable left end seat 23 and right end seat 24 and a matching end seat cover. A special vulcanization groove 22 is designed on the left end seat 23 and the right end seat 24 for placing two adjacent seals 51.

[0049] After the vulcanization tool is prepared, two adjacent seals 51 are placed in the vulcanization grooves 22 of the left end seat 23 and the right end seat 24, respectively. The ends of the two seals 51 should fit tightly to ensure a good connection during the vulcanization process. At the same time, it is necessary to ensure that the seals 51 are positioned correctly in the vulcanization grooves 22 to avoid uneven vulcanization or poor connection. When placing two adjacent seals 51, it is preferred to sandwich a molded raw rubber sheet 21 between the two seals 51 to further ensure the vulcanization effect.

[0050] After the seal 51 is placed in the vulcanization tank 22, the end seat cover needs to be placed on the vulcanization tank 22. This step is very important because the end seat cover can effectively seal the vulcanization tank 22 to form a closed space. In this space, the seal 51 will undergo a vulcanization reaction, so it is necessary to ensure good sealing to avoid heat and pressure loss.

[0051] When installing the end seat cover, it is necessary to ensure that the end seat cover is tightly connected to the left end seat 23 and the right end seat 24 to prevent leakage or falling off during the vulcanization process. At the same time, it is also necessary to check the alignment between the end seat cover and the vulcanization tank 22 to ensure that heat and pressure can act evenly on the seal 51.

[0052] After the end seat cover is installed, the left end seat 23 and the right end seat 24 need to be tightened according to the requirements of vulcanization. This step is to achieve specific vulcanization requirements, control the vulcanization length of two adjacent seals 51, and ensure that the sealing effect after vulcanization meets the design requirements.

[0053] When tightening the left end seat 23 and the right end seat 24, special tools or equipment are required to ensure accurate and reliable adjustment. At the same time, it is also necessary to determine the appropriate tightening length of the left end seat 23 and the right end seat 24 according to the requirements of the vulcanization process to ensure that the seal 51 can fully react and form a good connection during the vulcanization process.

[0054] After the left end seat 23 and the right end seat 24 are tightened, the two adjacent seals 51 in the vulcanization tank 22 will be adjusted together with the left end seat 23 and the right end seat 24 to change the contact distance between the two adjacent seals 51.

[0055] Next, the vulcanization tank 22 can be heated by the temperature control device 41. The temperature control device 41 can accurately control the temperature in the vulcanization tank 22 to ensure that the seal 51 undergoes a vulcanization reaction at an appropriate temperature.

[0056] As the temperature rises, the two adjacent seals 51 begin to undergo a vulcanization reaction. During this process, the material of the seal 51 undergoes a chemical change, becoming more durable and waterproof. At the same time, since the two seals 51 fit closely together, a strong connection is formed between them.

[0057] When the vulcanization reaction is completed, the seal 51 has just completed the vulcanization process. At this point, they have possessed enough strength and sealing performance to meet the use requirements of the shield machine main drive system.

[0058] The utility model is described in detail above in conjunction with the embodiments of the drawings. A person skilled in the art can make various variations of the utility model according to the above description. Therefore, certain details in the embodiments should not constitute a limitation of the utility model, and the scope of protection of the utility model shall be defined by the scope of the attached claims.

Claims

1. A vulcanization tool for shield main drive seals, used for vulcanization connection of two adjacent seals, characterized in that: include: A left end seat and a right end seat, wherein the left end seat and the right end seat are provided with a vulcanization groove matched with the sealing element, and the left end seat and the right end seat are provided with the vulcanization grooves connected to each other, and the left end seat and the right end seat can be tightened to each other along the direction of the vulcanization groove; An end seat cover is arranged on the vulcanization tank, and the end seat cover can be tightened synchronously with the left end seat and the right end seat; A temperature control device is arranged on the left end seat or the right end seat, and the temperature control device can control the temperature of the left end seat and the right end seat.

2. The vulcanization tool for the shield main drive seal according to claim 1, characterized in that: An adjusting member is provided between the left end seat and the right end seat, and the adjusting member can tighten the left end seat and the right end seat.

3. The vulcanization tool for the shield main drive seal according to claim 2, characterized in that: The left end seat and the right end seat are provided with through holes which are interconnected, and the adjusting member is an adjusting bolt which is inserted into the through hole, and the adjusting bolt can adjust the distance between the left end seat and the right end seat.

4. The vulcanization tool for the shield main drive seal according to claim 2, characterized in that: It also includes a first gasket or a second gasket sandwiched between the left end seat and the right end seat, the first gasket is thicker than the second gasket, and the thickness of the first gasket or the second gasket is the distance between the left end seat and the right end seat.

5. The vulcanization tool for the shield main drive seal according to claim 2, characterized in that: The end base cover comprises: a left end cover and a right end cover; The left end cover and the right end cover are detachably fixed on the left end seat and the right end seat respectively.

6. The vulcanization tool for the shield main drive seal according to claim 5, characterized in that: The left end cover can be split into multiple sections.

7. The vulcanization tool for the shield main drive seal according to claim 1, characterized in that: The temperature control device comprises: a heating wire and a temperature sensor; The heating wire is inserted into the left end seat or the right end seat, and the heating wire can heat the left end seat and the right end seat; The temperature sensor is inserted into the left end seat or the right end seat, and the temperature sensor is used to monitor the temperature of the left end seat and the right end seat.

8. The vulcanization tool for the shield main drive seal according to claim 7, characterized in that: There are a plurality of heating wires, and the heating wires are also inserted into the end seat cover.

9. The vulcanization tool for the shield main drive seal according to claim 7, characterized in that: The left end seat or the right end seat is provided with a hole parallel to the vulcanization tank, and the temperature sensor is screwed into the hole.

10. The vulcanization tool for the shield main drive seal according to claim 1, characterized in that: It also includes a molded raw rubber sheet, which is sandwiched between two adjacent sealing members.

Images