Silicon core pipe girdling device for tunnel

Abstract

The utility model discloses a silicon core pipe girdling device for a tunnel, which belongs to the technical field of silicon core pipe cutting and comprises a mounting box of an arc-shaped box structure. The cutting mechanism is connected with the mounting box; the clamping mechanism is connected with the mounting box; and the driving mechanism is arranged in the mounting box, and the driving mechanism is matched with the clamping mechanism. According to the silicon core pipe cutting device, the cutting mechanism is arranged on one side of the mounting box, when the silicon core pipe is annularly cut through the cutting mechanism, the silicon core pipe is clamped and fixed through the clamping mechanism by starting the driving mechanism, and therefore the silicon core pipe cutting device is fixed to the silicon core pipe to complete cutting of the silicon core pipe; the technical problems that in the prior art, a silicon core pipe is prone to sliding in the cutting process, and the cutting position is difficult to fix are solved, and the technical effect of improving the flatness of a notch is achieved.

Description

Technical Field

[0001] This utility model relates to the field of silicon core tube cutting, and in particular to a silicon core tube circumferential cutting device for tunnels. Background Technology

[0002] Tunnel silicon core tubes are long tubular materials used to house optical fibers or other communication cables. During tunnel maintenance, these tubes need to be replaced based on operational requirements and site conditions. This replacement process requires cutting the tubes to meet varying length requirements. However, existing methods for cutting silicon core tubes typically involve manual cutting, which is complex and prone to slippage during the process. This makes it difficult to maintain a fixed cutting position, affecting the smoothness of the cut and potentially leading to tilted or twisted shapes, or even cutting failure. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies where silicon core tubes are prone to slippage during the cutting process, making it difficult to fix the cutting position. Therefore, this invention proposes a silicon core tube circumferential cutting device for tunnels.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A device for circumferential cutting of silicon core tubes for tunnels includes a mounting box, wherein the mounting box has an arc-shaped box structure.

[0006] A cutting mechanism, which is connected to the mounting box and is located on one side of the mounting box;

[0007] A clamping mechanism is connected to the mounting box and is used to clamp and fix the silicon core when the silicon core tube is circumferentially cut.

[0008] A drive mechanism is disposed inside the mounting box and is adapted to the clamping mechanism.

[0009] Furthermore, the cutting mechanism includes:

[0010] A protective cover is connected to the mounting box and is adapted to the mounting box. The protective cover is provided with a slide rail.

[0011] An opening and closing ring is located on one side of the protective cover and has a ring-shaped structure. The opening and closing ring is provided with a sliding groove that matches the slide rail, and the opening and closing ring slides on the protective cover through the sliding groove.

[0012] A rack, which is disposed on the opening and closing ring and is adapted to the opening and closing ring;

[0013] Two first gears are mounted on the protective cover, and the two first gears are meshed with the rack.

[0014] Two first drivers are disposed inside the mounting box, and two first gears are respectively connected to the two first drivers;

[0015] Several tool modules are disposed on the opening and closing ring and are evenly distributed on the opening and closing ring.

[0016] Furthermore, the tool module includes:

[0017] A fixing seat is disposed on the opening and closing ring;

[0018] An elastic telescopic component is fixedly mounted on the fixed base. The elastic telescopic component consists of a rectangular telescopic rod and a spring sleeved on the rectangular telescopic rod.

[0019] The cutting head is disposed on the elastic telescopic member.

[0020] Furthermore, the clamping mechanism includes:

[0021] A connecting box is disposed on one side of the mounting box and connected to the mounting box. The connecting box has an overall fan-shaped structure and both ends of the connecting box are designed to be unobstructed.

[0022] Two clamping rings are provided, the two clamping rings are semi-circular rings, and the two clamping rings are symmetrically and staggered about the center of the connecting box. The two clamping rings are the first clamping ring and the second clamping ring, and the clamping rings are provided with guide grooves. The clamping rings are semi-circular toothed rings.

[0023] A plurality of guide posts are disposed on the inner wall of the connecting box and are respectively adapted to the two clamping rings;

[0024] Two second gears are disposed inside the connecting box, and the two second gears are respectively adapted to the two clamping rings. The two second gears are a forward rotation gear and a reverse rotation gear.

[0025] Furthermore, a blocking block is provided inside the connecting box, and a limiting plate adapted to the blocking block is provided on the clamping ring.

[0026] Furthermore, the connecting box is also equipped with a number of rotating columns, which are evenly distributed on both sides of the two clamping rings, and the rotating columns are adapted to the clamping rings.

[0027] Furthermore, the clamping mechanism also includes two auxiliary fixing members, which are used to fix the silicon core tube.

[0028] Furthermore, the drive mechanism includes:

[0029] A second driver is disposed within the mounting box;

[0030] A support frame is disposed inside the mounting box and located on one side of the second driver, and a rotating bushing is provided on the support frame;

[0031] A first helical gear, located within the support frame and connected to the drive shaft of the second driver;

[0032] The second helical gear is disposed inside the mounting box. The second helical gear is perpendicular to the first helical gear and is meshed with the first helical gear.

[0033] The third helical gear has a hollow rotating shaft fixedly mounted on it. The rotating shaft is assembled inside the rotating bushing and is fixedly connected to the reversing gear. The third helical gear is coaxial with the first helical gear and meshes with the second helical gear.

[0034] The beneficial effects of this utility model are as follows:

[0035] This application solves the technical problem in the prior art that silicon core tubes are prone to slippage during the cutting process and it is difficult to fix the cutting position, thereby achieving the technical effect of improving the flatness of the cut. By setting a cutting mechanism on one side of the mounting box, the cutting mechanism of the cutting mechanism can be activated to clamp and fix the silicon core tube by activating the driving mechanism, thus fixing the device on the silicon core tube to complete the cutting of the silicon core tube. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of a tunnel silicon core tube circumferential cutting device provided in this embodiment of the present invention. Figure 1 ;

[0037] Figure 2 This is a schematic diagram of a tunnel silicon core tube circumferential cutting device provided in this embodiment of the present invention. Figure 2 ;

[0038] Figure 3 This is a partial cross-sectional view of a silicon core tube circumferential cutting device for tunnels provided in an embodiment of this utility model. Figure 1 ;

[0039] Figure 4This is a partial cross-sectional view of a silicon core tube circumferential cutting device for tunnels provided in an embodiment of this utility model. Figure 2 ;

[0040] Figure 5 This is a schematic diagram of the opening and closing ring unfolding state structure of a silicon core tube ring cutting device for tunnels provided in this embodiment of the present invention;

[0041] Figure 6 This is an exploded view of the drive mechanism portion provided in the embodiments of this utility model.

[0042] The markings in the diagram are as follows:

[0043] 1. Installation box;

[0044] 2. Cutting mechanism; 21. Protective cover; 22. Opening and closing ring; 23. Rack; 24. First gear; 25. First driver; 26. Tool module; 261. Fixing base; 262. Elastic telescopic component; 263. Cutting head;

[0045] 3. Clamping mechanism; 31. Connecting box; 311. Blocking block; 312. Rotating column; 32. Clamping ring; 321. Guide groove; 322. Limiting plate; 33. Guide column; 34. Second gear; 35. Auxiliary fixing component;

[0046] 4. Drive mechanism; 41. Second driver; 42. Support frame; 421. Rotating bushing; 43. First helical gear; 44. Second helical gear; 45. Third helical gear; 451. Rotating shaft. Detailed Implementation

[0047] 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.

[0048] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0049] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0051] Reference Figures 1 to 6 As shown, a silicon core tube circumferential cutting device for tunnels, used in practical applications for rapid cutting of silicon core tubes, includes a mounting box 1, a cutting mechanism 2 connected to the mounting box 1, a clamping mechanism 3 disposed on the mounting box 1, and a driving mechanism 4 adapted to the clamping mechanism 3.

[0052] Specifically, the mounting box 1 is an arc-shaped box structure adapted to the silicon core tube, with a hollow interior. The mounting box 1 also has a handle for workers to handle. The cutting mechanism 2 is movably connected to the mounting box 1 and is located on one side of the mounting box 1. The cutting mechanism 2 is an annular structure adapted to the silicon core tube to perform circumferential cutting, avoiding damage to the internal circuitry of the silicon core tube. The clamping mechanism 3 is fixedly connected to the mounting box 1 and located on the side of the mounting box 1 away from the cutting mechanism 2. The clamping mechanism 3 is used to clamp and fix the silicon core tube during circumferential cutting, thereby improving the stability of the cutting process and the smoothness of the cut. The driving mechanism 4 is located inside the mounting box 1 and is adapted to the clamping mechanism 3. The driving mechanism 4 is used to drive the clamping mechanism 3 to move.

[0053] More specifically, the cutting mechanism 2 includes a protective cover 21, an opening and closing ring 22 connected to the protective cover 21, a rack 23 disposed on the opening and closing ring 22, two first gears 24 adapted to the rack 23, two first drivers 25 respectively connected to the two first gears 24, and a plurality of tool modules 26 disposed on the opening and closing ring 22. The protective cover 21 is located on one side of the mounting box 1 and is fixedly connected to the mounting box 1. The protective cover 21 is adapted to the mounting box 1, that is, the protective cover 21 is a fan-shaped structure similar in shape to the side of the mounting box 1. The protective cover 21 is used to protect internal components, extend their service life, and reduce the possibility of injury caused by accidental contact by personnel. The opening / closing ring 22 is located on one side of the protective cover 21, and the opening / closing ring 22 has a ring-shaped structure adapted to the silicon core tube. A slide rail is fixedly mounted on the protective cover 21. The slide rail is T-shaped and has a curved arc shape adapted to the opening / closing ring 22. The end of the opening / closing ring 22 near the protective cover 21 has a groove adapted to the slide rail. That is, by cooperating with the slide rail and the groove, the opening / closing ring 22 achieves a sliding connection on the protective cover 21, ensuring that the opening / closing ring 22 can circumferentially rotate around the silicon core tube. The silicon core tube rotates stably. Specifically, the opening and closing ring 22 is composed of two semicircular rings. One end of the two semicircular rings is hinged together, and the other end is fixedly connected by means such as bolts and nuts, thus forming the entire opening and closing ring 22. For example, the hinged ends of the two semicircular rings can be rotatably connected by inserting a rotating shaft. When it is necessary to fit the silicon core tube into the opening and closing ring 22, the bolts and nuts can be loosened to allow the two semicircular rings to rotate and open around the hinged ends. After the silicon core tube is inserted, the rings and nuts are closed and the bolts and nuts are tightened to achieve a circumferential fit around the silicon core tube. The rack 23 is fixedly arranged on the outer wall of the opening and closing ring 22 along the circumference, and the length of the rack 23 is adapted to the arc length of the opening and closing ring 22. Both first gears 24 are rotatably mounted on the protective cover 21. The two first gears 24 are symmetrically arranged about the center of the protective cover 21, and both first gears 24 are meshed with the rack 23. That is, rotating the first gear 24 can drive the opening and closing ring 22 to rotate. The arrangement of two first gears 24 can reduce the possibility that the opening and closing ring 22 will stop rotating because one of the first gears 24 cannot mesh with the rack 23 due to the gap at the connection of the opening and closing ring 22. Both first drivers 25 are disposed in the mounting box 1, and the two first gears 24 are fixedly connected to the two first drivers 25 respectively. For example, the first driver 25 is a servo motor, which is composed of a stator, rotor and output shaft, etc. The first gear 24 is fixedly connected to the output. When the first driver 25 is started, it can drive the first gear 24 to rotate through the output shaft, thereby causing the opening and closing ring 22 to rotate.Several cutting tool modules 26 are fixedly disposed on the side of the opening and closing ring 22 near the silicon core tube, and are evenly distributed on the opening and closing ring 22. When the opening and closing ring 22 rotates, the silicon core tube can be cut by the several cutting tool modules 26.

[0054] Please see Figure 4 More specifically, for ease of description, the tool module 26 will be described as a single tool module 26. The tool module 26 includes a fixed base 261, an elastic telescopic member 262 disposed on the fixed base 261, and a tool head 263 connected to the elastic telescopic member 262. The fixed base 261 is fixedly disposed on the opening / closing ring 22. The elastic telescopic member 262 is disposed on the fixed base 261. Specifically, the elastic telescopic member 262 consists of a rectangular telescopic rod and a spring sleeved on the rectangular telescopic rod. The rectangular telescopic rod effectively prevents the elastic telescopic member 262 from rotating during extension and retraction. The cutting head 263 is fixedly disposed at one end of the elastic telescopic member 262. That is, when the closed ring is in the state of embracing the silicon core tube, the cutting head 263 can always be in contact with the silicon core tube under the elastic force of the elastic telescopic member 262, thereby ensuring that the cutting head 263 can closely fit the surface of the silicon core tube during the cutting process, so that the cutting head 263 can gradually cut from the surface of the silicon core tube into the silicon core tube until the cutting of the silicon core tube is completed.

[0055] In this embodiment, to ensure the stability of the silicon core tube during the cutting process and improve the flatness of the cut, the clamping mechanism 3 includes a connecting box 31, two clamping rings 32 connected to the connecting box 31, a plurality of guide posts 33 disposed within the connecting box 31, and two second gears 34 respectively adapted to the two clamping rings 32. The connecting box 31 is disposed on the side of the mounting box 1 away from the cutting mechanism 2, and the connecting box 31 is fixedly connected to the mounting box 1. The connecting box 31 has an overall fan-shaped structure adapted to the mounting box 1, and both ends of the connecting box 31 are designed without obstruction. The two clamping rings 32 are semi-circular ring structures adapted to the silicon core tube, and the two clamping rings 32 are symmetrically and staggered about the center of the connecting box 31. The two clamping rings 32 are the first clamping ring and the second clamping ring, that is, the two clamping rings 32 are located on two planes. When the two clamping rings 32 are retracted into the connecting box 31, they are misaligned to avoid mutual interference. When the two clamping rings 32 extend out of the connecting box 31, they can form a complete circular clamping space to hug and clamp the silicon core tube. The width of the connecting box 31 is adapted to the overall thickness of the two clamping rings 32, thereby reducing the shaking of the clamping rings 32. A plurality of guide posts 33 are disposed on the inner wall of the connecting box 31 and are adapted to the two clamping rings 32 respectively. That is, the plurality of guide posts 33 are radially distributed along the curvature of the connecting box 31 and are disposed on the two inner walls of the connecting box 31. Each clamping ring 32 is provided with a guide groove 321. By the cooperation of the guide post 33 and the guide groove 321, the clamping ring 32 can slide along the path of the guide post 33. Two second gears 34 are disposed inside the connecting box 31, and the two second gears 34 are respectively adapted to the two clamping rings 32. The two second gears 34 are a forward gear and a reverse gear, respectively. The clamping rings 32 are semi-circular toothed rings, that is, the edges of the two clamping rings 32 are provided with a number of tooth grooves adapted to the second gears 34. Specifically, by the two second gears 34 meshing with the tooth grooves, when the forward gear rotates clockwise and the reverse gear rotates counterclockwise, the first clamping ring and the second clamping ring can be driven to extend from the unobstructed ends of the connecting box, thereby making the first clamping ring and the second clamping ring form a circular state adapted to the silicon core tube, so as to achieve the clamping of the silicon core tube.

[0056] To prevent the clamping ring 32 from detaching from the connecting box 31 due to excessive movement when it extends out of the connecting box 31, a blocking block 311 is also provided inside the connecting box 31. The clamping ring 32 is provided with a limiting plate 322 that is adapted to the blocking block 311. The limiting plate 322 is provided on one end of the clamping ring 32 near the limiting plate 322. When the clamping ring 32 slides, the limiting plate 322 and the blocking block 311 can cooperate to prevent the clamping ring 32 from sliding excessively.

[0057] In some preferred embodiments, the connecting box 31 is also rotatably equipped with a plurality of rotating columns 312, and the plurality of rotating columns 312 are evenly distributed on both sides of the two clamping rings 32. The plurality of rotating columns 312 are adapted to the clamping rings 32 and are used to provide auxiliary guidance for the sliding of the clamping rings 32, thereby improving the stability of the clamping rings 32 when they move along the guide column 33.

[0058] In this embodiment, the clamping mechanism 3 further includes two auxiliary fixing members 35. The two auxiliary fixing members 35 are respectively disposed on the two clamping rings 32 at the ends away from the second gear 34. When the clamping rings 32 clamp the silicon core tube, they are used to further fix the silicon core tube to reduce the possibility of the silicon core tube shaking during clamping. For example, the clamping ring 32 is composed of a threaded post and an abutment. The clamping ring 32 is provided with a threaded hole. By screwing the threaded post into the threaded hole, the abutment abuts against the outer wall of the silicon core tube. By tightening the threaded post, the pressure of the abutment on the silicon core tube can be adjusted, thereby adapting to silicon core tubes of different diameters and further enhancing the stability of clamping.

[0059] In some preferred embodiments, the abutment is made of rubber with anti-slip texture on its surface. When it comes into contact with the silicon core tube, it can increase the friction between the two tubes and prevent the silicon core tube from undergoing axial or circumferential displacement during the cutting process.

[0060] In this embodiment, the drive mechanism 4 includes a second driver 41, a support frame 42 disposed within the mounting box 1, a first helical gear 43 connected to the second driver 41, a second helical gear 44 disposed on the support frame 42, and a third helical gear 45 adapted to the second helical gear 44. Specifically, the second driver 41 is fixedly disposed within the mounting box 1. For example, the second driver 41 is a stepper motor, which outputs power through its output shaft, and the output shaft of the second driver 41 passes through the connecting box and is fixedly connected to the forward gear. The support frame 42 is fixedly disposed within the mounting box 1 and is located on one side of the second driver 41. The first helical gear 43 is located within the support frame 42 and is fixedly connected to the drive shaft of the second driver 41, that is, starting the second driver 41 can drive the first helical gear 43 to rotate synchronously with the forward gear. The second helical gear 44 is rotatably mounted inside the mounting box 1. The second helical gear 44 is perpendicular to the first helical gear 43, and the second helical gear 44 is meshed with the first helical gear 43, meaning that the rotation of the first helical gear 43 can drive the second helical gear 44 to rotate synchronously. A rotating bushing 421 is fixedly mounted on the end of the support frame 42 away from the second driver 41. A hollow rotating shaft 451 is fixedly mounted on the third helical gear 45. The rotating shaft 451 is rotatably mounted inside the rotating bushing 421, and one end of the rotating shaft 451 is fixedly connected to the reverse gear, meaning that the rotation of the third helical gear 45 can drive the reverse gear to rotate. The third helical gear 45 is coaxial with the first helical gear 43, meaning that the drive shaft of the second driver 41 can pass through the hollow part of the rotating shaft 451 and connect with the forward helical gear 43. The rotating gears are fixedly connected, and the third helical gear 45 is meshed with the second helical gear 44. When the first helical gear 43 rotates, the third helical gear 45 can rotate in the opposite direction to the first helical gear 43 through the transmission of the second helical gear 44. For example, the second driver 41 is activated to make the first helical gear 43 rotate synchronously with the forward rotating gear. At this time, the rotation of the first helical gear 43 drives the third helical gear 45 to rotate, thereby driving the reverse rotating gear to rotate. Then, under the rotation of the forward rotating gear and the reverse rotating gear, the two clamping rings 32 slide in opposite directions.

[0061] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A silicon core tube ring cutting device for tunneling, characterized by, Include: Mounting box (1), the mounting box (1) is arc box structure; Cutting mechanism (2), the cutting mechanism (2) is connected with the mounting box (1), and the cutting mechanism (2) is located at one side of the mounting box (1); Clamping mechanism (3), the clamping mechanism (3) is connected with the mounting box (1), and the clamping mechanism (3) is used for clamping and fixing the silicon core when the silicon core tube is ring cutting; Driving mechanism (4), the driving mechanism (4) is arranged in the mounting box (1), and the driving mechanism (4) is matched with the clamping mechanism (3).

2. A device for cutting a silicon core tube ring for a tunnel according to claim 1, characterized in that, The cutting mechanism (2) includes: Protective cover (21), the protective cover (21) is connected with the mounting box (1), and the protective cover (21) is matched with the mounting box (1), the protective cover (21) is provided with slide rail; Open-close ring (22), the open-close ring (22) is located at one side of the protective cover (21), and the open-close ring (22) is annular structure, the open-close ring (22) is provided with sliding groove matched with the slide rail, the open-close ring (22) slides on the protective cover (21) through the sliding groove; Rack (23), the rack (23) is arranged on the open-close ring (22), and the rack (23) is matched with the open-close ring (22); Two first gears (24), two first gears (24) are all assembled on the protective cover (21), and two first gears (24) are engaged with the rack (23); Two first drivers (25), two first drivers (25) are arranged in the mounting box (1), and two first gears (24) are respectively connected with two first drivers (25); A plurality of cutter modules (26), a plurality of cutter modules (26) are arranged on the open-close ring (22), and are evenly arranged on the open-close ring (22).

3. A device for cutting a ring of silicon core tubes for a tunnel, according to claim 2, characterized in that, The cutter module (26) includes: Fixed seat (261), the fixed seat (261) is arranged on the open-close ring (22); Elastic telescopic piece (262), the elastic telescopic piece (262) is fixedly arranged on the fixed seat (261), and the elastic telescopic piece (262) is composed of rectangular telescopic rod and spring sleeved outside the rectangular telescopic rod; Tool bit (263), the tool bit (263) is arranged on the elastic telescopic piece (262).

4. A device for cutting a silicon core tube ring for a tunnel according to claim 1, characterized in that, The clamping mechanism (3) includes: Connection box (31), the connection box (31) is arranged at one side of the mounting box (1), and is connected with the mounting box (1), the connection box (31) is overall fan-shaped structure, and both ends of the connection box (31) are designed without shielding; Two clamping rings (32), two clamping rings (32) are semicircular ring structure, and two clamping rings (32) are symmetrically and staggeredly arranged with the center of the connection box (31) as the shaft, two clamping rings (32) are respectively first clamping ring and second clamping ring, the clamping ring (32) is provided with guide groove (321), and the clamping ring (32) is semicircular gear ring. A plurality of guide columns (33) are arranged on the inner wall of the connecting box (31) and are matched with the two clamping rings (32) respectively; Two second gears (34) are arranged in the connecting box (31) and are matched with the two clamping rings (32) respectively, and the two second gears (34) are forward rotation gears and reverse rotation gears respectively.

5. A device for cutting a ring of silicon core tubes for a tunnel, according to claim 4, characterized in that, The connecting box (31) is further provided with a blocking block (311), and the clamping ring (32) is provided with a limiting plate (322) matched with the blocking block (311).

6. A device for cutting a ring of silicon core tubes for a tunnel, according to claim 4, characterized in that, The connecting box (31) is further provided with a plurality of rotating columns (312), which are uniformly distributed on both sides of the two clamping rings (32) and are matched with the clamping rings (32).

7. A device for cutting a silicon core tube ring for a tunnel according to claim 4, characterized in that, The clamping mechanism (3) further comprises two auxiliary fixing members (35) for fixing the silicon core tube.

8. A device for cutting a silicon core tube ring for a tunnel according to claim 4, characterized in that, The driving mechanism (4) comprises: A second driver (41) is arranged in the mounting box (1); A support frame (42) is arranged in the mounting box (1) and located on one side of the second driver (41), and a rotating shaft sleeve (421) is arranged on the support frame (42); A first helical gear (43) is located in the support frame (42) and connected with the driving shaft of the second driver (41); A second helical gear (44) is arranged in the mounting box (1), the second helical gear (44) is arranged vertically with the first helical gear (43), and the second helical gear (44) is connected with the first helical gear (43) in meshing; A third helical gear (45) is fixedly provided with a hollow rotating shaft (451) thereon, the rotating shaft (451) is assembled in the rotating shaft sleeve (421), and the rotating shaft (451) is fixedly connected with the reverse gear, the third helical gear (45) is coaxially arranged with the first helical gear (43), and the third helical gear (45) is connected with the second helical gear (44) in meshing.

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