A hybrid rectangular pipe jacking machine cutting disc

Abstract

The present invention relates to the technical field of pipe jacking machine equipment, and discloses a hybrid rectangular pipe jacking machine cutting disc, comprising a main body, wherein two mud discharge ports are provided inside the main body. The present invention uses a driving component, and when the disc is eccentrically rotating and cutting, the rotation of multiple discs can cover the entire cutting section. By eccentrically rotating the disc and the blade, the soil at the four corners of the main body is cut, which can reduce the situation where the soil at the corners of the main body is difficult to be cut, resulting in the shear force of the subsequent main body squeezing the soil at the corners during advancement, resulting in part of the soil being hardened and remaining at the four corners of the disc and the side wall of the main body after being pushed by the main body. While reducing stress concentration at the corners during advancement of the main body, it also reduces the situation where advancement is hindered due to soil residue and hardening, thereby improving the cutting efficiency of the disc during cutting.

Description

Technical Field

[0001] The invention relates to the technical field of pipe jacking machine equipment, in particular to a hybrid rectangular pipe jacking machine cutting disc. Background Art

[0002] As a commonly used tunnel excavation equipment, pipe jacking machines have many types and specifications. According to the working principle, pipe jacking machines are generally divided into hand excavation type, extrusion type, semi-mechanical type, and mechanical type. According to the shape of the excavation section, they can also be divided into circular section pipe jacking machines and rectangular section pipe jacking machines. Among them, rectangular section pipe jacking machines are more widely used in subway tunnel excavation.

[0003] When the rectangular cutterhead is working to cut the soil, since the four corners of the rectangular cutterhead are relatively right-angled structures and the blade structure on the cutterhead is circular, when the cutterhead moves and squeezes the soil for cutting, the reaction force of the soil during cutting forms stress concentration at the corners of the cutterhead seat, making it difficult to directly cover the four corners of the cutterhead during cutting, which easily causes the soil located in the four corners of the cutterhead to be difficult to be fully cut. When the cutterhead is subsequently advanced, part of the soil located in the four corners of the cutterhead is only crushed by the extrusion of the cutterhead, which easily increases the advancement resistance and easily causes soil to remain in the four corners of the cutterhead seat. It is not easy to form the rectangular cross-section of the soil in one go during cutting, which affects the cutting efficiency of the cutterhead when cutting the soil. Summary of the Invention

[0004] The object of the present invention is to provide a hybrid rectangular pipe jacking machine cutting disc to solve the problems raised in the above background technology.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a hybrid rectangular pipe jacking machine cutting disc, comprising a main body, two mud discharge ports are provided inside the main body, and further comprising:

[0007] The pushing mechanism is installed on the side wall of the main body and is used to quickly push the soil out through the mud discharge port when advancing the soil cutting;

[0008] The auxiliary mechanism is installed on the side wall of the pushing mechanism and is used to prevent the soil from being compacted during pushing.

[0009] Furthermore, the subject includes:

[0010] A drive assembly is installed inside the main body through a transmission member;

[0011] An extrusion assembly is installed on a side wall of the driving assembly;

[0012] The transmission member includes a plurality of motors fixedly connected to the inner wall of the left side of the main body. The output end of the motor is fixedly connected to a connecting shaft, and the connecting shaft rotates and penetrates the side wall of the main body.

[0013] Furthermore, the pushing mechanism includes two connecting rings provided on the side wall of the main body, and the pushing mechanism includes:

[0014] The middle component is installed at the bottom of the connecting ring;

[0015] Auxiliary components, the auxiliary components are installed on the side wall of the middle component;

[0016] The elastic component is installed inside the middle component.

[0017] Furthermore, the auxiliary mechanism includes a second rotating frame installed on the side wall of the intermediate component, and the auxiliary mechanism includes:

[0018] The flip assembly is installed on the top of the second rotating frame.

[0019] Furthermore, a rectangular groove is formed on one end of the connecting shaft away from the motor;

[0020] The drive assembly includes a cutter head disposed at an end of the connecting shaft away from the motor;

[0021] Among them, the two middle cutter discs are fixedly connected to the connecting shaft, the remaining cutter discs are slidably connected to the connecting shaft, and the ends of the remaining cutter discs close to the connecting shaft are fixedly connected to spring plates, and the bottoms of the spring plates are fixedly connected to the bottom inner wall of the square groove;

[0022] The outer surface of the cutterhead has three blades bolted to it.

[0023] Furthermore, the extrusion assembly includes a conical ring slidably connected to the outer surface of the connecting shaft, a circular ring is rotatably connected to a side of the conical ring close to the motor, and two hydraulic rods are rotatably connected to the side wall of the circular ring;

[0024] The two hydraulic rods are symmetrically distributed around the connecting axis, and the hydraulic rods are fixedly connected to the side walls of the main body;

[0025] The side wall of the conical ring is provided with a semicircular plate, which is fixedly connected to the side wall of the cutter disc.

[0026] Furthermore, two connecting rings are rotatably connected to the outer wall of one side of two of the cutter discs located at the bottom close to the semicircular plate;

[0027] The middle component comprises a middle plate which is rotatably connected to the bottom of the connecting ring; one end of the middle plate which is away from the connecting ring is rotatably connected to a hollow plate.

[0028] Furthermore, the auxiliary component includes a movable plate rotatably connected to the bottom of the hollow plate, an end of the movable plate away from the hollow plate is rotatably connected to a push plate, and the push plate is slidably connected to the bottom inner wall of the main body.

[0029] Furthermore, the elastic component includes three rotating racks rotatably connected to the interior of the hollow plate, the bottom of the rotating rack is fixedly connected to an auxiliary spring, and the bottom of the auxiliary spring is fixedly connected to a conical plate;

[0030] The conical plate is slidably arranged on the side wall of the rotating frame. Limit rods are arranged on the left and right sides of the conical plate. The limit rods are fixedly connected to the inside of the hollow plate.

[0031] Furthermore, the interior of the second rotating frame is slidably connected to the side wall of the hollow plate, and the side of the second rotating frame close to the motor is rotatably connected to the side wall of the main body;

[0032] The turning assembly includes two square plates fixedly connected to the top of the second rotating frame, and two square blocks are fixedly connected to the side wall of the square plate near the middle of the main body;

[0033] A flip plate is rotatably connected between the two square plates, and two protruding rods are fixedly connected to the bottom of the flip plate.

[0034] The present invention has the following beneficial effects:

[0035] 1. The present invention uses a drive assembly to allow the cutter disc to rotate eccentrically for cutting. The rotation of multiple cutter discs can cover the entire cutting section. The cutter disc and blades cut the soil at the four corners of the main body after eccentric rotation. This can reduce the difficulty of cutting the soil at the corners of the main body, which leads to the shear force of the subsequent main body squeezing the soil at the corners, resulting in part of the soil being hardened and remaining at the four corners of the cutter disc and the side wall of the main body after being pushed by the main body. This reduces stress concentration at the corners when the main body is pushed, reduces the obstruction of the push due to the residue and hardening of the soil, and improves the cutting efficiency of the cutter disc during cutting.

[0036] 2. The present invention uses the intermediate component and the auxiliary component. When the movable plate pushes the push plate to reset, the sliding of the push plate will push the soil being cut and falling toward the entrance of the mud discharge port, thereby reducing the situation in which the soil is scattered on the main body and the bottom of the cutter disc and accumulates after being cut by the eccentric rotation of the cutter disc due to the small outlet position and area of ​​the motor. By pushing the falling soil to the entrance of the mud discharge port, it is possible to further reduce the resistance to the main body during propulsion and reduce the situation in which the pushing of the soil affects the subsequent normal discharge of the soil through the mud discharge port, thereby further improving the stability and discharge efficiency of the soil when the cutter disc is advancing and cutting.

[0037] 3. The present invention uses the intermediate component and the elastic component. When the hollow plate slides through the conical plate to push the raised rod, the conical plate will be squeezed downward by the reaction force of the raised rod, so that the conical plate stretches the auxiliary spring and slides downward, pushing the soil again. When the flip plate flips back and forth, the raised rod will shake the falling soil during the flipping process to disperse it. At the same time, multiple conical plates reciprocate to squeeze the soil accumulated inside the bottom of the main body, which can reduce the vibration and compaction of the accumulated soil caused by the eccentric movement of the flip component at the bottom and the reciprocating swing of the hollow plate, making it difficult to discharge it outward through the mud discharge port. By crushing the compacted soil, it can reduce the compaction of the soil and improve the stability of the pushing plate in pushing the soil and the stable efficiency of the soil being discharged through the mud discharge port.

[0038] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0040] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0041] Figure 2 It is a schematic diagram of the overall partial cross-sectional structure of the present invention;

[0042] Figure 3 It is a schematic diagram of the main body of the present invention;

[0043] Figure 4 This is a schematic diagram of the drive assembly of the present invention;

[0044] Figure 5 A schematic diagram of an extrusion assembly of the present invention;

[0045] Figure 6 This is a schematic diagram of the cutter head structure of the present invention;

[0046] Figure 7 It is a partial schematic diagram of the extrusion assembly of the present invention;

[0047] Figure 8 This is a schematic diagram of the intermediate component of the present invention;

[0048] Figure 9 This is a schematic diagram of the flip assembly of the present invention;

[0049] Figure 10 for Figure 9 Enlarged schematic diagram of point A in the middle.

[0050] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0051] In the figure: 1. Main body; 101. Mud discharge port; 11. Driving assembly; 111. Motor; 112. Connecting shaft; 113. Cutter head; 114. Blade; 12. Extrusion assembly; 121. Hydraulic rod; 122. Conical ring; 123. Semicircular plate; 2. Pushing mechanism; 201. Connecting ring; 21. Intermediate assembly; 211. Intermediate plate; 212. Hollow plate; 22. Auxiliary assembly; 221. Movable plate; 222. Pushing plate; 23. Elastic assembly; 231. Conical plate; 232. Rotating frame; 233. Limiting rod; 3. Auxiliary mechanism; 301. Rotating frame 2; 31. Flipping assembly; 311. Square plate; 312. Flipping plate; 313. Raised rod. DETAILED DESCRIPTION

[0052] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0053] See also Figures 1-10 As shown, the present invention is a hybrid rectangular pipe jacking machine cutting disc, comprising a main body 1, wherein two mud discharge ports 101 are provided inside the main body 1, and further comprising;

[0054] The pushing mechanism 2 is installed on the side wall of the main body 1 and is used to quickly push the soil out through the mud discharge port 101 when advancing the soil cutting;

[0055] The auxiliary mechanism 3 is installed on the side wall of the pushing mechanism 2 and is used to prevent the soil from being compacted during pushing.

[0056] Body 1 includes:

[0057] The driving assembly 11 is installed inside the main body 1 through a transmission member;

[0058] The extrusion assembly 12 is installed on the side wall of the driving assembly 11;

[0059] The transmission member includes a plurality of motors 111 fixedly connected to the left inner wall of the main body 1 . The output end of the motor 111 is fixedly connected to a connecting shaft 112 , which rotates and penetrates the side wall of the main body 1 .

[0060] The pushing mechanism 2 includes two connecting rings 201 arranged on the side wall of the main body 1. The pushing mechanism 2 includes:

[0061] The intermediate component 21 is installed at the bottom of the connecting ring 201;

[0062] Auxiliary component 22, the auxiliary component 22 is installed on the side wall of the middle component 21;

[0063] The elastic component 23 is installed inside the middle component 21 .

[0064] The auxiliary mechanism 3 includes a rotating frame 301 installed on the side wall of the intermediate component 21. The auxiliary mechanism 3 includes:

[0065] The flip assembly 31 is installed on the top of the second rotating frame 301.

[0066] A rectangular groove is formed on the end of the connecting shaft 112 away from the motor 111;

[0067] The driving assembly 11 includes a cutter head 113 disposed at an end of the connecting shaft 112 away from the motor 111;

[0068] Among them, the two middle blade discs 113 are fixedly connected to the connecting shaft 112, and the remaining blade discs 113 are slidably connected to the connecting shaft 112. The remaining blade discs 113 are fixedly connected to a spring plate at one end close to the connecting shaft 112, and the bottom of the spring plate is fixedly connected to the bottom inner wall of the square groove;

[0069] The outer surface of the cutter disc 113 is bolted to three blades 114. The rotation of multiple cutter discs 113 can cover the entire cutting section. The eccentric rotation of the cutter disc 113 and the blades 114 can cut the soil at the four corners of the main body 1. This can reduce the situation where the soil at the corners of the main body 1 is difficult to be cut, resulting in the shear force of the subsequent main body 1 squeezing the soil at the corners during the advancement, resulting in part of the soil being hardened and remaining at the four corners of the cutter disc 113 and the side wall of the main body 1 after being pushed by the main body 1.

[0070] The extrusion assembly 12 includes a conical ring 122 slidably connected to the outer surface of the connecting shaft 112. The conical ring 122 is rotatably connected to a circular ring on one side close to the motor 111. The side wall of the circular ring is rotatably connected to two hydraulic rods 121.

[0071] The two hydraulic rods 121 are symmetrically distributed around the connecting shaft 112, and the hydraulic rods 121 are fixedly connected to the side wall of the main body 1;

[0072] The side wall of the conical ring 122 is provided with a semicircular plate 123, and the semicircular plate 123 is fixedly connected to the side wall of the cutter disc 113. When the main body 1 starts the hydraulic rods 121 on both sides of the connecting shaft 112 before advancing, when the hydraulic rods 121 are working, they will drive the conical ring 122 to slide on the outer surface of the connecting shaft 112 through the circular ring. When the conical ring 122 slides, it will squeeze the semicircular plate 123 through the inclined surface of the inner wall.

[0073] The two connecting rings 201 are rotatably connected to the outer wall of one side of the two cutter discs 113 located at the bottom close to the semicircular plate 123;

[0074] The intermediate component 21 includes an intermediate plate 211 rotatably connected to the bottom of the connecting ring 201. The end of the intermediate plate 211 away from the connecting ring 201 is rotatably connected to a hollow plate 212. At the same time, the connecting ring 201 will also drive the hollow plate 212 to slide slightly through the intermediate plate 211 while the cutter disc 113 makes eccentric motion.

[0075] The auxiliary component 22 includes a movable plate 221 rotatably connected to the bottom of the hollow plate 212, and the end of the movable plate 221 away from the hollow plate 212 is rotatably connected to the push plate 222, and the push plate 222 is slidably connected to the bottom inner wall of the main body 1. When the hollow plate 212 rotates upward with the eccentric movement of the cutter disc 113, the rotation of the hollow plate 212 will drive the push plate 222 to slide backward through the movable plate 221, and then when the hollow plate 212 rotates downward to reset, it will push the push plate 222 to reset and slide on the bottom inner wall of the main body 1 through the movable plate 221.

[0076] The elastic component 23 includes three rotating frames 232 rotatably connected to the interior of the hollow plate 212. The bottom of the rotating frame 232 is fixedly connected to an auxiliary spring, and the bottom of the auxiliary spring is fixedly connected to a conical plate 231.

[0077] The conical plate 231 is slidably arranged on the side wall of the rotating frame 232, and a limit rod 233 is provided on the left and right sides of the conical plate 231. The limit rod 233 is fixedly connected to the inside of the hollow plate 212. When the movable plate 221 drives the pushing plate 222 to slide backward, the soil cut by the main body 1 during advancement and the soil scattered after the eccentric rotation of the cutter disc 113 will fall between the bottom area of ​​the main body 1 and the soil. When the movable plate 221 pushes the pushing plate 222 to reset, the sliding of the pushing plate 222 will push the cut and falling soil toward the entrance of the mud discharge port 101.

[0078] The interior of the second rotating frame 301 is slidably connected to the side wall of the hollow plate 212, and the side of the second rotating frame 301 close to the motor 111 is rotatably connected to the side wall of the main body 1;

[0079] The flip assembly 31 includes two square plates 311 fixedly connected to the top of the second rotating frame 301, and two square blocks are fixedly connected to the side wall of the square plate 311 near the middle of the main body 1;

[0080] The two square plates 311 are rotatably connected with a flip plate 312, and the bottom of the flip plate 312 is fixedly connected with two raised rods 313. When the curvature of the top of the conical plate 231 pushes the raised rods 313, the two raised rods 313 are pushed and drive the flip plate 312 to swing back and forth left and right. At this time, the square blocks on the side walls of the square plate 311 can limit the rotation of the flip plate 312. At the same time, when the hollow plate 212 slides through the conical plate 231 to push the raised rods 313, the conical plate 231 will be squeezed downward by the reaction force of the raised rods 313.

[0081] When in use, first place the main body 1 in the channel built underground, and connect the mud discharge port 101 to the screw conveying equipment, then intermittently place rectangular pipe sections between the external hydraulic equipment and the main body 1, and then start the external hydraulic equipment and motor 111. When the hydraulic equipment is started, it will push the main body 1 to slide through the pipe sections. At the same time, when the main body 1 slides, the rotation of the motor 111 will drive the cutter disc 113 to slide synchronously. At this time, the sliding of multiple cutter discs 113 will cut the soil. Then, when the main body 1 is pushed forward, the soil will enter the bolt conveying equipment through the mud discharge port 101 and be discharged outward, thereby completing the cutter disc 113's work of cutting the soil.

[0082] When the main body 1 starts the hydraulic rods 121 on both sides of the connecting shaft 112 before advancing, when the hydraulic rods 121 are working, the conical ring 122 will be driven to slide on the outer surface of the connecting shaft 112 through the circular ring. When the conical ring 122 slides, it will squeeze the semicircular plate 123 through the inclined surface of the inner wall. When the semicircular plate 123 is squeezed, it will drive the cutter disc 113 to slide on the side wall of the conical ring 122. At this time, the sliding of the cutter disc 113 located at the four corners of the side wall of the main body 1 will be eccentrically arranged with the connecting shaft 112. Subsequently, when the eccentric cutter disc 113 is driven by the connecting shaft 112 to rotate, the rotation of the cutter disc 113 can form a more precise cutter disc 113 and the blades 114 when cutting under the rotation of the multiple blades 114 on the side wall. The large cutting radius synchronously cuts the soil in the four corners of the main body 1. At the same time, when the cutter disc 113 is eccentrically rotating for cutting, the rotation of multiple cutter discs 113 can cover the entire cutting section. The eccentric rotation of the cutter disc 113 and the blade 114 can cut the soil located at the four corners of the main body 1. This can reduce the difficulty of cutting the soil at the corners of the main body 1, resulting in the shear force of the subsequent main body 1 squeezing the soil at the corners during advancement, causing part of the soil to harden and remain at the four corners of the cutter disc 113 and the side wall of the main body 1 after being pushed forward by the main body 1. This reduces the stress concentration at the corners of the main body 1 during advancement, reduces the obstruction of advancement due to the residue and hardening of the soil, and improves the cutting efficiency of the cutter disc 113 during cutting.

[0083] When the cutter disc 113 at the lower left and right corners of the main body 1 is performing eccentric movement, the eccentric movement of the cutter disc 113 will drive the hollow plate 212 to swing back and forth up and down through the connecting ring 201 and the middle plate 211. At the same time, the connecting ring 201 will also drive the hollow plate 212 to slide slightly through the middle plate 211 while the cutter disc 113 is performing eccentric movement. When the hollow plate 212 rotates upward with the eccentric movement of the cutter disc 113, the rotation of the hollow plate 212 will drive the push plate 222 to slide backward through the movable plate 221. Then, when the hollow plate 212 is rotated downward to reset, it will push the push plate 222 to reset and slide on the bottom inner wall of the main body 1 through the movable plate 221. When the movable plate 221 drives the push plate 222 to slide backward, the main body 1 cuts The soil and the soil scattered after the eccentric rotation of the cutter disc 113 will fall between the bottom area of ​​the main body 1 and the soil. When the movable plate 221 pushes the pushing plate 222 to reset, the sliding of the pushing plate 222 will push the soil being cut and falling toward the entrance of the mud discharge port 101, reducing the situation where the soil is scattered on the main body 1 and the bottom cutter disc 113 and accumulates after being cut by the eccentric rotation of the cutter disc 113 due to the small outlet position and area of ​​the motor 111. By pushing the fallen soil to the entrance of the mud discharge port 101, it is possible to further reduce the resistance to the advancement of the main body 1 and reduce the situation where the pushing of the soil affects the subsequent discharge of soil through the mud discharge port 101, thereby further improving the stability and discharge efficiency of the soil discharged outward by the cutter disc 113 during advancement and cutting.

[0084] When the hollow plate 212 swings up and down and slides slightly with the eccentric movement of the cutter head 113 through the middle plate 211, the hollow plate 212 will drive the rotating frame 2 301 to swing up and down synchronously. At the same time, when the hollow plate 212 swings up and down and slides, the hollow plate 212 will slide in the rotating frame 2 301. When the hollow plate 212 drives the rotating frame 2 301 to swing up and down, the swing of the hollow plate 212 will cause the soil accumulated on the bottom inner wall of the main body 1 to be removed through the multiple conical plates 231. The hollow plate 212 slides in the rotating frame 301, and the sliding of the hollow plate 212 squeezes the raised rod 313 at the bottom of the flip plate 312 through the conical plate 231. Since the two raised rods 313 at the bottom of the flip plate 312 are arranged in a staggered manner, when the curvature of the top of the conical plate 231 pushes the raised rod 313, the two raised rods 313 are pushed and drive the flip plate 312 to move upward. When the turning plate 312 is turned back and forth, the square block on the side wall of the square plate 311 can limit the rotation of the flip plate 312. At the same time, when the hollow plate 212 slides through the conical plate 231 and pushes the protruding rod 313, the conical plate 231 is pressed downward by the reaction force of the protruding rod 313, so that the conical plate 231 stretches the auxiliary spring and slides downward, pushing the soil again. When the turning plate 312 is turned back and forth, the protruding rod 313 will push the falling soil during the turning process. The soil is shaken to disperse it. At the same time, multiple conical plates 231 reciprocate to squeeze the soil accumulated inside the bottom of the main body 1, which can reduce the vibration and compaction of the accumulated soil caused by the eccentric movement of the main body 1 flip assembly 31 and the reciprocating swing of the hollow plate 212, making it difficult to discharge it outward through the mud discharge port 101. By breaking the compacted soil, the compaction of the soil can be reduced, and the stability of the soil pushed by the push plate 222 and the stable efficiency of the soil being discharged through the mud discharge port 101 can be improved.

[0085] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A hybrid rectangular pipe jacking machine cutting disc, comprising a main body (1), wherein two mud discharge ports (101) are provided inside the main body (1), characterized in that: Also includes; A pushing mechanism (2), the pushing mechanism (2) being installed on the side wall of the main body (1) and used for quickly pushing the soil out through the mud discharge port (101) when pushing the soil; An auxiliary mechanism (3), the auxiliary mechanism (3) being installed on a side wall of the pushing mechanism (2) and used to prevent soil from being compacted during pushing; The pushing mechanism (2) comprises two connecting rings (201) arranged on the side wall of the main body (1), and the pushing mechanism (2) comprises: An intermediate component (21), the intermediate component (21) being installed at the bottom of the connecting ring (201); An auxiliary component (22), the auxiliary component (22) being mounted on a side wall of the intermediate component (21); an elastic component (23), wherein the elastic component (23) is installed inside the intermediate component (21); The intermediate component (21) comprises an intermediate plate (211) rotatably connected to the bottom of the connecting ring (201), and one end of the intermediate plate (211) away from the connecting ring (201) is rotatably connected to a hollow plate (212); The auxiliary component (22) comprises a movable plate (221) rotatably connected to the bottom of the hollow plate (212); an end of the movable plate (221) away from the hollow plate (212) is rotatably connected to a push plate (222); and the push plate (222) is slidably connected to the bottom inner wall of the main body (1); The elastic component (23) comprises three rotating racks (232) rotatably connected to the interior of the hollow plate (212), the bottom of the rotating rack (232) being fixedly connected to an auxiliary spring, and the bottom of the auxiliary spring being fixedly connected to a conical plate (231); The conical plate (231) is slidably arranged on the side wall of the rotating frame (232), and limiting rods (233) are provided on the left and right sides of the conical plate (231), and the limiting rods (233) are fixedly connected to the inside of the hollow plate (212).

2. The hybrid rectangular pipe jacking machine cutting disc according to claim 1, characterized in that: The main body (1) includes: A drive assembly (11), the drive assembly (11) being installed inside the main body (1) via a transmission member; An extrusion assembly (12), wherein the extrusion assembly (12) is mounted on a side wall of the drive assembly (11); The transmission member comprises a plurality of motors (111) fixedly connected to the left inner wall of the main body (1), the output end of the motor (111) being fixedly connected to a connecting shaft (112), and the connecting shaft (112) being rotatably passed through the side wall of the main body (1).

3. The hybrid rectangular pipe jacking machine cutting disc according to claim 2, characterized in that: The auxiliary mechanism (3) includes a second rotating frame (301) installed on the side wall of the intermediate component (21), and the auxiliary mechanism (3) includes: A turning assembly (31) is installed on the top of the second rotating frame (301).

4. The hybrid rectangular pipe jacking machine cutting disc according to claim 3, characterized in that: A rectangular groove is formed at one end of the connecting shaft (112) away from the motor (111); The drive assembly (11) comprises a cutter disc (113) arranged at an end of the connecting shaft (112) away from the motor (111); The two middle blade discs (113) are fixedly connected to the connecting shaft (112), the remaining blade discs (113) are slidably connected to the connecting shaft (112), and one end of the remaining blade discs (113) close to the connecting shaft (112) is fixedly connected to a spring plate, and the bottom of the spring plate is fixedly connected to the bottom inner wall of the square groove; Three blades (114) are bolted to the outer surface of the cutter disc (113).

5. The hybrid rectangular pipe jacking machine cutting disc according to claim 4, characterized in that: The extrusion assembly (12) includes a conical ring (122) slidably connected to the outer surface of the connecting shaft (112), a side of the conical ring (122) close to the motor (111) is rotatably connected to a circular ring, and a side wall of the circular ring is rotatably connected to two hydraulic rods (121); The two hydraulic rods (121) are symmetrically distributed with the connecting shaft (112) as the center, and the hydraulic rods (121) are fixedly connected to the side wall of the main body (1); A semicircular plate (123) is provided on the side wall of the conical ring (122), and the semicircular plate (123) is fixedly connected to the side wall of the cutter disc (113).

6. The hybrid rectangular pipe jacking machine cutting disc according to claim 5, characterized in that: The two connecting rings (201) are rotatably connected to the outer wall of one side of two cutter discs (113) located at the bottom, close to the semicircular plate (123).

7. The hybrid rectangular pipe jacking machine cutting disc according to claim 6, characterized in that: The interior of the second rotating frame (301) is slidably connected to the side wall of the hollow plate (212), and the side of the second rotating frame (301) close to the motor (111) is rotatably connected to the side wall of the main body (1); The turning assembly (31) comprises two square plates (311) fixedly connected to the top of the second rotating frame (301), and two square blocks are fixedly connected to the side walls of the square plates (311) near the middle of the main body (1); A flip plate (312) is rotatably connected between the two square plates (311), and two protruding rods (313) are fixedly connected to the bottom of the flip plate (312).

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