A cutter head of a shield machine with a slag discharging mechanism

Abstract

The present invention belongs to the technical field of tunnel boring, and specifically relates to a cutter head of a shield machine with a slag discharging mechanism, including a cutter head of a shield machine. The cutter head of the shield machine includes a crushing cutter head. A mud inlet is penetrated through the side of the crushing cutter head, and a placement opening is penetrated through the side of the crushing cutter head. A crushing tool is fixedly connected to the side wall of the placement opening. A reciprocating propulsion mechanism is arranged on the side of the rotating cutter head of the shield machine. When the excess mud on the side of the mud inlet is scraped off by the moving scraper, the total amount of mud in the mud inlet will decrease. Furthermore, when the reciprocating propulsion mechanism pushes the mud inside the mud inlet out of the mud inlet, it will encounter less resistance, thereby preventing the reciprocating propulsion mechanism from being overloaded during operation, and further being able to extend the service life of the equipment. Secondly, through the movement of the pushing plate, the mud blocking the inside of the mud inlet can be pushed out of the mud inlet, thereby reducing the downtime of the shield machine, lowering the construction cost, and further improving the construction efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of tunnel boring, and specifically relates to a cutter head of a shield machine with a slag discharging mechanism. Background Art

[0002] The cutter head of a shield machine with a slag discharging mechanism is a specially designed component of a shield machine. It combines the cutting function of the cutter head body with an efficient slag discharging mechanism, and can effectively cut the soil during tunneling and smoothly discharge the muck through the slag discharging mechanism, thereby avoiding the accumulation and blockage of muck at the cutter head and the mud inlet, and ensuring the normal tunneling and construction efficiency of the shield machine.

[0003] In the prior art, the equipment drives the cutter head to rotate through a hydraulic motor. After cutting the soil, the cut muck enters the soil bin through the cutter grooves. At the same time, the slag discharging mechanism (such as a screw conveyor and a belt conveyor) is started to transport the muck in the soil bin to the belt conveyor, and then transported to the muck truck, and finally transported to the ground through the shaft, so as to realize the slag discharging operation during the tunneling process of the shield machine.

[0004] The above solution still has some problems in actual application. The existing equipment can complete the tunneling work of the tunnel, but when the equipment tunnels in the clay stratum, due to the fine particles of the clay soil itself and the presence of more clay mineral components, such as montmorillonite, kaolinite, etc., the surfaces of these clay mineral particles are charged, and in the presence of water, a colloid will be formed. The colloid has strong adhesiveness, which makes the soil particles adhere to each other. When the clay soil enters the mud inlet of the shield machine, it is easy to accumulate and adhere around the mud inlet, gradually causing the mud inlet to become blocked. When the mud inlet is blocked, the shield machine needs to stop for cleaning. Since the shield machine works underground, cleaning it at this time will take a lot of time, thus prolonging the shutdown time of the shield machine, and further affecting the overall efficiency of the work. Secondly, since the blocked mud at the mud inlet of the cutter head of the shield machine does not completely fall into the mud bin, when the reciprocating propulsion mechanism added at this time works, the incompletely separated mud forms a relatively large mud block as a whole. The reciprocating propulsion equipment needs to overcome greater friction and viscous forces, and this increased resistance will cause the propulsion equipment to be overloaded, affecting its normal operation, and further reducing the service life of the equipment.

[0005] Therefore, the present invention provides a cutter head of a shield machine with a slag discharging mechanism. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: A cutter head of a shield machine with a slag discharging mechanism described in the present invention includes a rotating cutter head of the shield machine. The rotating cutter head of the shield machine includes a crushing cutter head. A mud inlet is formed through the side of the crushing cutter head, and a placement opening is formed through the side of the crushing cutter head. A crushing tool is fixedly connected to the side wall of the placement opening. A reciprocating propulsion mechanism is arranged on the side of the rotating cutter head of the shield machine.

[0008] The reciprocating propulsion mechanism includes a first fixing plate fixedly arranged on the side of the crushing cutter head. A reciprocating moving rod is slidably arranged on the side of the first fixing plate. A pushing plate is fixedly arranged at the bottom of the reciprocating moving rod. By the movement of the pushing plate, the clay blocking the inside of the mud inlet can be pushed out of the mud inlet.

[0009] Preferably, a reciprocating scraping mechanism for cutting is arranged on the side of the rotating cutter head of the shield machine. The reciprocating scraping mechanism includes a support frame fixedly connected to the side of the crushing cutter head. A first bidirectional motor is fixedly connected to the side of the support frame. The output end of the first bidirectional motor penetrates through the side wall of the support frame, and a rotating screw rod is fixedly connected to the output shaft of the first bidirectional motor.

[0010] Preferably, the rotation of the rotating screw rod can provide corresponding power support for the operation of subsequent devices. The support frame is of a "groove" - like structure, and its side wall can provide corresponding support for subsequent devices.

[0011] Preferably, a reciprocating moving block is threadedly connected to the outer ring surface of the rotating screw rod. A guiding column is fixedly connected to the side wall of the support frame. The reciprocating moving block is slidably connected to the outer ring surface of the guiding column. A moving scraping plate is fixedly connected to the side of the reciprocating moving block. A first rectangular plate is fixedly connected to the top of the moving scraping plate. A first convex point is fixedly connected to the side of the first rectangular plate. A second rectangular plate is fixedly connected to the side of the crushing cutter head. A second convex point is fixedly connected to the side of the second rectangular plate.

[0012] Preferably, the arrangement of the guiding column can limit the reciprocating moving block, so that the reciprocating moving block performs a linear motion. The side of the moving scraping plate close to the side of the crushing cutter head is of a slope structure, which is convenient for scraping the mud outside the mud inlet. The arrangements of the first convex point and the second convex point can shake off the soil adhering to the slope structure at the bottom of the moving scraping plate through vibration when the reciprocating scraping mechanism completes its work.

[0013] Preferably, a second bidirectional motor is fixedly connected to the side of the first fixing plate. The output shaft of the second bidirectional motor penetrates through the inside of the first fixing plate. A rotating shaft is fixedly connected to the output shaft of the second bidirectional motor. One end of the rotating shaft is fixedly connected to a swinging rod. A first limiting groove is formed through the upper part of the swinging rod.

[0014] Preferably, the rotation of the rotating shaft can drive the swing rod to swing, and the setting of the first limiting groove can provide limitation for the operation of the subsequent device. The first limiting groove is a vertical groove.

[0015] Preferably, a sliding column is arranged inside the first limiting groove. The sliding column is slidably connected in the first limiting groove. One end of the sliding column is fixedly connected with a reciprocating moving rod. A second fixing plate is fixedly connected to the side surface of the first fixing plate. A second limiting groove is formed through the second fixing plate. The sliding column is slidably connected in the second limiting groove. The second limiting groove is composed of a vertical groove and a transverse groove.

[0016] Preferably, a first limiting block is fixedly connected to the top of the second fixing plate. A sliding block is slidably connected inside the first limiting block. A second limiting block is fixedly connected to the side wall of the sliding block. The reciprocating moving rod is slidably connected through the inside of the second limiting block.

[0017] Preferably, the settings of the transverse groove and the vertical groove of the second limiting groove can ensure the linear motion of the subsequent device. At the same time, in cooperation with the first limiting groove, it can also lift the reciprocating moving rod. The setting of the first limiting block can limit the reciprocating moving rod so that it will not rotate.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. For the cutter head of the shield machine with a slag discharging mechanism described in the present invention, when the rotating screw rotates, it will drive the reciprocating moving block threadedly connected thereto to rotate synchronously. Since the reciprocating moving block slides on the outer ring surface of the guiding column, when the reciprocating moving block rotates, it will be limited by the guiding column to perform linear motion, and at the same time of the linear motion, it will drive the moving scraper on its side to move synchronously. Since the bottom of the moving scraper near the crushing cutter head is of a slope structure, when the moving scraper moves, it will scrape the mud that is excessive at the mud inlet through its slope structure. When the excessive mud on the side of the mud inlet is scraped off, the total amount of mud in the mud inlet will decrease. Furthermore, when the reciprocating propulsion mechanism pushes the mud inside the mud inlet out of the mud inlet, it will encounter less resistance, thereby being able to prevent the reciprocating propulsion mechanism from being overloaded during operation, and further being able to extend the service life of the equipment. When the moving scraper completes the scraping work, the output shaft of the first bidirectional motor will rotate in the reverse direction, and at the same time of the rotation, it will drive the moving scraper, the first rectangular plate and the first convex point fixed on the upper part of the moving scraper to move upward synchronously. When the moving scraper completely leaves the mud inlet, its top will abut against the bottom of the second rectangular plate. At this time, the first bidirectional motor will stop working, and the first convex point on the first rectangular plate fixed on the top of the moving scraper will continuously abut against the second convex point, thereby generating slight vibrations, and further being able to shake off the mud adhered to the bottom of the moving scraper, thereby reducing the maintenance frequency of the reciprocating scraping mechanism.

[0020] 2. The cutter head of the shield machine with a slag discharging mechanism according to the present invention, when the swing rod swings, it will drive the first limit groove to swing synchronously, and at the same time drive the sliding column sliding in the first limit groove to move synchronously. Since the sliding column slides in the second limit groove, when the first limit groove swings following the swing rod, the sliding column will move linearly along the transverse groove of the second limit groove, and at the same time drive the reciprocating moving rod and the pushing plate to move synchronously. When the sliding column moves to the intersection of the transverse groove and the vertical groove of the second limit groove, the swing rod will continue to swing and push the sliding column to slide into the vertical groove of the second limit groove. At this time, the sliding column will drive the reciprocating moving rod and the pushing plate fixed to it to move linearly along the guiding hole inside the second limiting block. Through the movement of the pushing plate, the soil blocking the inside of the mud inlet can be pushed out of the mud inlet, thereby reducing the downtime of the shield machine, lowering the construction cost, and further improving the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 is the overall structural schematic diagram of a preferred embodiment shown in the present invention;

[0023] Figure 2 is the internal structural schematic diagram of the crushing cutter head shown in the present invention;

[0024] Figure 3 is the positional structural schematic diagram of the rotating cutter head of the shield machine and the reciprocating scraping mechanism shown in the present invention;

[0025] Figure 4 is the three-dimensional structural schematic diagram of the reciprocating scraping mechanism shown in the present invention;

[0026] Figure 5 is the positional structural schematic diagram of the first bump and the second bump shown in the present invention;

[0027] Figure 6 is the positional structural schematic diagram of the rotating cutter head of the shield machine and the reciprocating propulsion mechanism shown in the present invention;

[0028] Figure 7 is the three-dimensional structural schematic diagram of the reciprocating propulsion mechanism shown in the present invention;

[0029] Figure 8 is the partial mechanism decomposition structural schematic diagram of the reciprocating propulsion mechanism shown in the present invention;

[0030] In the figure: 1. Rotating cutter head of the shield machine; 101. Crushing cutter head; 102. Mud inlet; 103. Placing port; 104. Crushing tool;

[0031] 2. Reciprocating scraping mechanism; 201. Support frame; 202. First bidirectional motor; 203. Rotating screw; 204. Reciprocating moving block; 205. Guide post; 206. Moving scraper; 207. First rectangular plate; 208. First bump; 209. Second rectangular plate; 210. Second bump;

[0032] 3. Reciprocating propulsion mechanism; 301. First fixed plate; 302. Second bidirectional motor; 303. Rotating shaft; 304. Swing rod; 305. First limiting groove; 306. Sliding column; 307. Reciprocating moving rod; 308. Second fixed plate; 309. Second limiting groove; 310. First limiting block; 311. Sliding block; 312. Second limiting block; 313. Pushing plate. Detailed implementation manners

[0033] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0034] Embodiment 1

[0035] As Figures 1 to 8 shown, a cutter head of a shield machine with a slag discharging mechanism described in an embodiment of the present invention includes a rotating cutter head 1 of the shield machine. The rotating cutter head 1 of the shield machine includes a crushing cutter head 101. A mud inlet 102 is formed through the side of the crushing cutter head 101. A placement opening 103 is formed through the side of the crushing cutter head 101. A crushing tool 104 is fixedly connected to the side wall of the placement opening 103. A reciprocating propulsion mechanism 3 is arranged on the side of the rotating cutter head 1 of the shield machine;

[0036] The reciprocating propulsion mechanism 3 includes a first fixed plate 301 fixedly arranged on the side of the crushing cutter head 101. A reciprocating moving rod 307 is slidably arranged on the side of the first fixed plate 301. A pushing plate 313 is fixedly arranged at the bottom of the reciprocating moving rod 307. By the movement of the pushing plate 313, the clay blocking the inside of the mud inlet 102 can be pushed out of the mud inlet 102.

[0037] Specifically, the existing equipment can complete the tunneling work, but when the equipment is excavating in the clay layer, since the clay soil itself has fine particles and contains more clay mineral components, such as montmorillonite, kaolinite, etc., these clay mineral particles have electric charges on the surface. In the presence of water, colloids will be formed. The colloids have strong adhesion, which makes the soil particles adhere to each other. When the clay soil enters the mud inlet 102 of the shield machine, it is easy to accumulate and adhere around the mud inlet 102, gradually causing the mud inlet 102 to be blocked. When the mud inlet 102 is blocked, the shield machine needs to be stopped for cleaning. Since the shield machine works underground, it takes a lot of time to clean it at this time, thereby extending the downtime of the shield machine, which in turn affects the overall efficiency of the work.

[0038] Therefore, the present invention solves this problem by setting up a corresponding structure. The shield machine cutter head with a slag discharge mechanism described in the present invention, when the equipment is excavating a tunnel in a clay soil layer, the rotating cutter head 1 of the shield machine will follow the main body of the shield machine to move along a preset route, at this time, the crushing cutter head 101 will rotate, and during the rotation, the crushing tool 104 inside the placement port 103 will crush the stones in the soil layer, and at the same time, the soil and crushed stones will be moved to the mud bin in the shield machine through the mud inlet 102. However, when the equipment is excavating in the clay layer, since the clay soil itself has fine particles and contains more clay mineral components, such as montmorillonite, kaolinite, etc., these clay mineral particles have electric charges on their surfaces. In the presence of water, colloids will be formed. The colloids have strong adhesion, which makes the soil particles adhere to each other. When the clay When the high-quality soil enters the mud inlet 102 of the shield machine, it is easy to accumulate and stick around the mud inlet 102, gradually causing the mud inlet 102 to be blocked. When the mud inlet 102 is blocked, the shield machine needs to be stopped for cleaning. Since the shield machine works underground, it takes a lot of time to clean it at this time, thereby extending the downtime of the shield machine, which will affect the overall efficiency of the work. At this time, the reciprocating rod 307 on the first fixed plate 301 will move toward the mud inlet 102, and at the same time, it will drive the pushing plate 313 fixed thereto to move synchronously, and at the same time, the soil in the mud inlet 102 will be pushed out of the mud inlet 102, so that when the mud inlet 102 is blocked, it can be scraped away in time to maintain the patency of the mud inlet 102, thereby improving the overall efficiency of the work.

[0039] Embodiment 2

[0040] like Figures 2 to 8 As shown in Comparative Example 1, another embodiment of the present invention is:

[0041] like Figure 4As shown in the figure, a reciprocating scraping mechanism 2 for cutting is provided on the side of the rotating cutter head 1 of the shield machine in this embodiment. The reciprocating scraping mechanism 2 includes a support frame 201, and the support frame 201 is fixedly connected to the side of the crushing cutter head 101. A first bidirectional motor 202 is fixedly connected to the side of the support frame 201. The output end of the first bidirectional motor 202 penetrates through the side wall of the support frame 201, and a rotating screw 203 is fixedly connected to the output shaft of the first bidirectional motor 202.

[0042] Specifically, when the mud inlet 102 is blocked, the first bidirectional motor 202 fixed on the support frame 201 is started. When the first bidirectional motor 202 is started, its output shaft will rotate, and at the same time of rotation, it will drive the rotating screw 203 to rotate synchronously. The rotation of the rotating screw 203 can provide corresponding power support for the operation of subsequent devices.

[0043] As Figure 4 and Figure 5 As shown in the figure, a reciprocating moving block 204 is threadedly connected to the outer ring surface of the rotating screw 203 in this embodiment. A guiding column 205 is fixedly connected to the side wall of the support frame 201. The reciprocating moving block 204 is slidably connected to the outer ring surface of the guiding column 205. A moving scraper 206 is fixedly connected to the side of the reciprocating moving block 204. A first rectangular plate 207 is fixedly connected to the top of the moving scraper 206. A first convex point 208 is fixedly connected to the side of the first rectangular plate 207. A second rectangular plate 209 is fixedly connected to the side of the crushing cutter head 101. A second convex point 210 is fixedly connected to the side of the second rectangular plate 209.

[0044] Specifically, when the rotating screw 203 rotates, it will drive the reciprocating moving block 204 threadedly connected to it to rotate synchronously. Since the reciprocating moving block 204 slides on the outer ring surface of the guiding column 205, the reciprocating moving block 204 will be limited by the guiding column 205 to perform a linear motion when rotating, and at the same time of the linear motion, it will drive the moving scraper 206 on its side to move synchronously. Since the bottom of the moving scraper 206 is a slope structure near the side of the crushing cutter head 101, when the moving scraper 206 moves, it will scrape the mud that is extra at the mud inlet 102 through its slope structure. When the extra mud on the side of the mud inlet 102 is scraped off, the total amount of mud in the mud inlet 102 will decrease. Furthermore, when the reciprocating pushing mechanism 3 pushes the mud inside the mud inlet 102 out of the mud inlet 102, it will encounter less resistance, thereby preventing the reciprocating pushing mechanism 3 from being overloaded during operation, and further extending the service life of the equipment;

[0045] When the moving scraper 206 finishes the scraping work, the output shaft of the first bidirectional motor 202 will rotate in the reverse direction, and while rotating, it will drive the moving scraper 206, the first rectangular plate 207 fixed on the upper part of the moving scraper 206, and the first bump 208 to move upward synchronously. When the moving scraper 206 completely leaves the mud inlet 102, its top will abut against the bottom of the second rectangular plate 209. At this time, the first bidirectional motor 202 will stop working, and the first bump 208 on the first rectangular plate 207 fixed on the top of the moving scraper 206 will continuously abut against the second bump 210, thereby generating slight vibrations, which can shake off the soil adhering to the bottom of the moving scraper 206, and then reduce the maintenance frequency of the reciprocating scraping mechanism 2.

[0046] As Figure 8 shown, a second bidirectional motor 302 is fixedly connected to the side of the first fixing plate 301 in this embodiment. The output shaft of the second bidirectional motor 302 penetrates the inside of the first fixing plate 301. The output shaft of the second bidirectional motor 302 is fixedly connected to a rotating shaft 303. One end of the rotating shaft 303 is fixedly connected to a swing rod 304, and a first limiting groove 305 is formed through the upper part of the swing rod 304.

[0047] Specifically, when the reciprocating scraping mechanism 2 finishes working, the second bidirectional motor 302 is started. At this time, the output shaft of the second bidirectional motor 302 will rotate, and while rotating, it will drive the rotating shaft 303 fixed to it to rotate synchronously. Since the swing rod 304 is fixed to one end of the rotating shaft 303, the swing rod 304 will be driven to swing when the rotating shaft 303 rotates, thereby providing corresponding power support for the subsequent process.

[0048] As Figure 7 and Figure 8 shown, a sliding column 306 is arranged inside the first limiting groove 305 in this embodiment. The sliding column 306 is slidably connected in the first limiting groove 305. One end of the sliding column 306 is fixedly connected to a reciprocating moving rod 307. A second fixing plate 308 is fixedly connected to the side of the first fixing plate 301. A second limiting groove 309 is formed through the second fixing plate 308. The sliding column 306 is slidably connected in the second limiting groove 309. The second limiting groove 309 is composed of a vertical groove and a horizontal groove.

[0049] As Figure 8 shown, a first limiting block 310 is fixedly connected to the top of the second fixing plate 308 in this embodiment. A sliding block 311 is slidably connected inside the first limiting block 310. A second limiting block 312 is fixedly connected to the side wall of the sliding block 311. The reciprocating moving rod 307 is slidably connected through the inside of the second limiting block 312.

[0050] Specifically, when the swing rod 304 swings, it will drive the first limit groove 305 to swing synchronously, and at the same time drive the sliding column 306 sliding in the first limit groove 305 to move synchronously. Since the sliding column 306 slides in the second limit groove 309, when the first limit groove 305 follows the swing rod 304 to swing, the sliding column 306 will move linearly along the horizontal groove of the second limit groove 309, and at the same time drive the reciprocating moving rod 307 and the pushing plate 313 to move synchronously;

[0051] When the sliding column 306 moves to the intersection of the horizontal groove and the vertical groove of the second limit groove 309, the swing rod 304 will continue to swing and push the sliding column 306 to slide into the vertical groove of the second limit groove 309. At this time, the sliding column 306 will drive the reciprocating moving rod 307 and the pushing plate 313 fixed to it to move linearly along the guiding hole inside the second limiting block 312. Through the movement of the pushing plate 313, the soil blocking the inside of the mud inlet 102 can be pushed out of the mud inlet 102, thereby reducing the shutdown time of the shield machine, lowering the construction cost, and further improving the construction efficiency.

[0052] Working principle: When the mud inlet 102 is blocked, the first bidirectional motor 202 fixed on the support frame 201 is started. When the first bidirectional motor 202 is started, its output shaft will rotate, and at the same time drive the rotating screw 203 to rotate synchronously. The rotation of the rotating screw 203 can provide corresponding power support for the operation of the subsequent device.

[0053] When the rotating screw 203 rotates, it will drive the reciprocating moving block 204 threadedly connected to it to rotate synchronously. Since the reciprocating moving block 204 slides on the outer ring surface of the guiding column 205, when the reciprocating moving block 204 rotates, it will be limited by the guiding column 205 to move linearly, and at the same time drive the moving scraper 206 on its side to move synchronously. Since the bottom of the moving scraper 206 is a slope structure near the side of the crushing cutter head 101, when the moving scraper 206 moves, it will scrape the mud protruding from the mud inlet 102 through its slope structure. When the mud protruding from the side of the mud inlet 102 is scraped off, the total amount of mud in the mud inlet 102 will decrease. Furthermore, when the reciprocating propulsion mechanism 3 pushes the mud inside the mud inlet 102 out of the mud inlet 102, it will encounter less resistance, thereby preventing the reciprocating propulsion mechanism 3 from being overloaded during operation, and further extending the service life of the equipment;

[0054] When the moving scraper 206 finishes the scraping work, the output shaft of the first bidirectional motor 202 will rotate in the reverse direction, and while rotating, it will drive the moving scraper 206, the first rectangular plate 207 fixed on the upper part of the moving scraper 206, and the first bump 208 to move upward synchronously. When the moving scraper 206 completely leaves the mud inlet 102, its top will abut against the bottom of the second rectangular plate 209. At this time, the first bidirectional motor 202 will stop working, and the first bump 208 on the first rectangular plate 207 fixed on the top of the moving scraper 206 will continuously contact the second bump 210, thereby generating slight vibrations, which can shake off the soil adhering to the bottom of the moving scraper 206, and further reduce the maintenance frequency of the reciprocating scraping mechanism 2.

[0055] When the reciprocating scraping mechanism 2 finishes working, start the second bidirectional motor 302. At this time, the output shaft of the second bidirectional motor 302 will rotate, and while rotating, it will drive the rotating shaft 303 fixed to it to rotate synchronously. Since the swing rod 304 is fixed at one end of the rotating shaft 303, when the rotating shaft 303 rotates, it will drive the swing rod 304 to swing, thereby providing corresponding power support for the subsequent operations.

[0056] When the swing rod 304 swings, it will drive the first limiting groove 305 to swing synchronously, and while swinging, it will drive the sliding column 306 sliding in the first limiting groove 305 to move synchronously. Since the sliding column 306 slides in the second limiting groove 309, when the first limiting groove 305 follows the swing rod 304 to swing, the sliding column 306 will move linearly along the horizontal groove of the second limiting groove 309, and while moving, it will drive the reciprocating moving rod 307 and the pushing plate 313 to move synchronously;

[0057] When the sliding column 306 moves to the intersection of the horizontal groove and the vertical groove of the second limiting groove 309, the swing rod 304 will continue to swing and push the sliding column 306 to slide into the vertical groove of the second limiting groove 309. At this time, the sliding column 306 will drive the reciprocating moving rod 307 and the pushing plate 313 fixed to it to move linearly along the guiding hole inside the second limiting block 312. Through the movement of the pushing plate 313, the soil blocking the inside of the mud inlet 102 can be pushed out of the mud inlet 102, which can reduce the shutdown time of the shield machine, lower the construction cost, and further improve the construction efficiency.

[0058] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A shield machine cutterhead with a slag discharge mechanism, comprising a shield machine rotating cutterhead (1), the shield machine rotating cutterhead (1) comprising a crushing cutterhead (101), a mud inlet (102) being provided through a side surface of the crushing cutterhead (101), a placement opening (103) being provided through a side surface of the crushing cutterhead (101), a crushing cutter (104) being fixedly connected to a side wall of the placement opening (103), characterized in that: A reciprocating propulsion mechanism (3) is provided on the side of the rotating cutterhead (1) of the shield machine; The reciprocating propulsion mechanism (3) comprises a first fixed plate (301) fixedly arranged on the side of the crushing cutter disc (101), a reciprocating rod (307) being slidably arranged on the side of the first fixed plate (301), and a pushing plate (313) being fixedly arranged at the bottom of the reciprocating rod (307), and the movement of the pushing plate (313) can push the clay blocking the inside of the mud inlet (102) out of the mud inlet (102); A second bidirectional motor (302) is fixedly connected to the side of the first fixed plate (301); an output shaft of the second bidirectional motor (302) passes through the interior of the first fixed plate (301); the output shaft of the second bidirectional motor (302) is fixedly connected to a rotating shaft (303); one end of the rotating shaft (303) is fixedly connected to a swing rod (304); and a first limiting groove (305) is penetrated through the upper part of the swing rod (304); A sliding column (306) is arranged inside the first limiting groove (305), one end of the sliding column (306) is fixedly connected to a reciprocating rod (307), a second fixing plate (308) is fixedly connected to the side of the first fixing plate (301), a second limiting groove (309) is penetrated inside the second fixing plate (308), the sliding column (306) is slidably connected in the second limiting groove (309), and the second limiting groove (309) consists of a vertical groove and a horizontal groove; A first limit block (310) is fixedly connected to the top of the second fixed plate (308), a sliding block (311) is slidably connected inside the first limit block (310), a second limit block (312) is fixedly connected to the side wall of the sliding block (311), and the reciprocating rod (307) passes through and is slidably connected inside the second limit block (312).

2. The shield machine cutter head with a slag discharge mechanism according to claim 1, characterized in that: A reciprocating scraping mechanism (2) for cutting is arranged on the side of the rotating cutter disc (1) of the shield machine, and the reciprocating scraping mechanism (2) comprises a support frame (201), the support frame (201) is fixedly connected to the side of the crushing cutter disc (101), a first bidirectional motor (202) is fixedly connected to the side of the support frame (201), an output end of the first bidirectional motor (202) passes through the side wall of the support frame (201), and an output shaft of the first bidirectional motor (202) is fixedly connected to a rotating screw (203).

3. The shield machine cutter head with a slag discharge mechanism according to claim 2, characterized in that: The rotation of the rotating screw (203) can provide corresponding power support for the operation of the subsequent device, and the support frame (201) is a "groove"-like structure, and its side wall can provide corresponding support for the subsequent device.

4. The shield machine cutter head with a slag discharge mechanism according to claim 2, characterized in that: The outer ring surface of the rotating screw rod (203) is threadedly connected to a reciprocating block (204); the side wall of the support frame (201) is fixedly connected to a guide column (205); the reciprocating block (204) is slidably connected to the outer ring surface of the guide column (205); the side of the reciprocating block (204) is fixedly connected to a moving scraper (206); the top of the moving scraper (206) is fixedly connected to a first rectangular plate (207); the side of the first rectangular plate (207) is fixedly connected to a first convex point (208); the side of the crushing cutter disc (101) is fixedly connected to a second rectangular plate (209); the side of the second rectangular plate (209) is fixedly connected to a second convex point (210).

5. The shield machine cutter head with a slag discharge mechanism according to claim 4, characterized in that: The setting of the guide column (205) can provide a limit for the reciprocating block (204), thereby enabling the reciprocating block (204) to move in a straight line. The side of the movable scraper (206) close to the crushing cutter disc (101) is a slope structure, which is convenient for scraping mud outside the mud inlet (102). The setting of the first convex point (208) and the second convex point (210) can shake off the mud adhered to the slope structure at the bottom of the movable scraper (206) through vibration when the reciprocating scraping mechanism (2) completes its work.

6. The shield machine cutter head with a slag discharge mechanism according to claim 1, characterized in that: The rotation of the rotating shaft (303) can drive the swing rod (304) to swing, and the provision of the first limiting groove (305) can provide a limit for the operation of the subsequent device, and the first limiting groove (305) is a vertical groove.

7. The shield machine cutter head with a slag discharge mechanism according to claim 1, characterized in that: The arrangement of the transverse groove and the vertical groove of the second limiting groove (309) can ensure that the subsequent device can perform linear motion, and at the same time, in conjunction with the first limiting groove (305), the reciprocating rod (307) can be lifted. The arrangement of the first limiting block (310) can limit the reciprocating rod (307) so that it does not rotate.

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