CN114033408A - Shield cutter with anti-jamming function - Google Patents

Abstract

The invention relates to the field of shield cutters, in particular to a shield cutter with an anti-blocking function, which comprises a cylinder, wherein a rotating mechanism is arranged on the inner wall of the cylinder, a telescopic mechanism is arranged on the rotating mechanism, a cutter head mechanism is arranged at the other end of the telescopic mechanism, an installing mechanism is arranged inside the cutter head mechanism, a positioning mechanism is arranged on the telescopic mechanism, an anti-blocking mechanism is arranged inside the cutter head mechanism, the rotating mechanism comprises a fixed circular plate, the fixed circular plate is fixedly sleeved inside the cylinder, a rack is fixedly connected to one side wall of the fixed circular plate, when a rotary disc rotates, a ring clamping groove and an inner ring groove are driven to rotate, when a control hydraulic cylinder is pushed out, a blocking column is blocked in the ring clamping groove, the inner wall of the ring clamping groove pushes the blocking column to move out of the cylinder from the inside of the fixed hole, the blocking column is blocked in the ground, the blocking column is fixed in soil, and the rotating cutter is supported by the cylinder, thereby preventing the cutter from being blocked when the cutter moves forwards.

Description

Shield cutter with anti-jamming function

Technical Field

The invention relates to the field of shield cutters, in particular to a shield cutter with an anti-jamming function.

Background

The shield machine is a tunnel boring machine using the shield method, the shield construction method is that the boring machine constructs the supporting structure of the tunnel while boring, the basic working principle of the shield machine is that a cylindrical steel component is pushed forward along the axis of the tunnel and excavates the soil, the shell of the cylindrical component is the shield, the shell plays a temporary supporting role for the excavated tunnel section which is not lined, the pressure of the surrounding soil layer is borne, the underground water pressure is borne and the underground water is blocked outside sometimes, the shield cutter is arranged at the front end of the shield machine, and the soil and the rock are crushed and cut by the rotating shield cutter.

The motor that current shield constructs the cutter and drives the shield structure cutter rotation in through the shield structure machine when using, it cuts soil and rock to construct the cutter through rotatory shield, the shield constructs the cutter and connects easily in soil and rock when rotatory, and then can lead to the engineering progress to receive the influence, and current shield constructs the cutter and generally promotes the cutter antedisplacement through the pneumatic cylinder when advancing, it wholly takes place the skew to promote the shield structure machine when the cutter is at the antedisplacement easily, and then the direction that probably leads to the cutter receives the influence, and the cutter is unable fixed when the shield structure machine advances, and then the direction that also can lead to the cutter changes, and then can cause the influence to the whole progress of engineering.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a shield cutter with an anti-jamming function.

The technical scheme adopted by the invention for solving the technical problems is as follows: a shield cutter with an anti-jamming function comprises a cylinder, wherein a rotating mechanism is arranged on the inner wall of the cylinder, a telescopic mechanism is arranged on the rotating mechanism, a cutter head mechanism is arranged at the other end of the telescopic mechanism, an installation mechanism is arranged in the cutter head mechanism, a positioning mechanism is arranged on the telescopic mechanism, and an anti-jamming mechanism is arranged in the cutter head mechanism;

slewing mechanism includes fixed plectane, fixed plectane is fixed to fix inside the drum, fixedly connected with frame on the lateral wall of fixed plectane, the inside fixedly connected with motor of frame, the output fixedly connected with pivot of motor, the pivot is rotated and is connected inside the commentaries on classics hole, the center department at fixed plectane is seted up in the commentaries on classics hole, the other end of pivot has seted up on the surface and has pressed from both sides the groove, the inside joint that presss from both sides the groove has the gleitbretter, the both ends fixed connection of gleitbretter is on the inner wall of same rotary drum.

Specifically, telescopic machanism includes two round holes, two the round hole symmetry is seted up on the both ends lateral wall of fixed plectane, two the inside of round hole is all pegged graft and is had the pneumatic cylinder, two equal symmetry fixedly connected with fixture block, two on the both ends outer wall of pneumatic cylinder the same ring of other end fixedly connected with of pneumatic cylinder, two hemisphere pieces of symmetry fixedly connected with on the opposite side lateral wall of ring, two hemisphere piece joint is inside same semicircle ring groove, semicircle ring groove is seted up on one side lateral wall of carousel, the carousel joint is on the one end opening inner wall of drum.

Specifically, the cutter head mechanism comprises a round box which is fixedly connected on the side wall of the turntable far away from the semi-circular groove, the outer circle side wall of the round box is fixedly connected with four support columns in an annular shape, the other ends of the four support columns are fixedly connected with the inner wall of the same outer ring, the side wall of the outer ring is fixedly connected with a fixed plate, the side walls of two ends of the fixed plate are respectively provided with a groove, the inner parts of the grooves are fixedly connected with scrapers, the side walls at the two sides of the fixed plate are fixedly connected with fan-shaped blocks, equal fixedly connected with cutter on the both sides lateral wall of sector block, two perpendicular grooves have been seted up to the symmetry on the lateral wall of fixed plate, two the slot has all been seted up on the one end inner wall that perpendicular groove was kept away from each other, two the inside of slot has all been pegged graft and has the round bar, two the round bar all rotates on the surface and is connected with the hobbing cutter.

Specifically, installation mechanism includes the circular slot, the circular slot is seted up in the lateral wall centre of a circle center department of fixed plate, the inside joint of circular slot has a screw thread section of thick bamboo, the inside threaded connection of screw thread section of thick bamboo has the screw thread post, the screw thread post is located the outside one end of screw thread section of thick bamboo and has seted up the square groove on the surface, two openings, two have been seted up to the symmetry on the inner wall of screw thread section of thick bamboo equal fixedly connected with circle axle on the open-ended inner wall, two the circle axle all rotate on the surface and be connected with the triangle piece, two the triangle piece difference joint is inside two joint inslots, two the joint groove is seted up respectively on the both sides inner wall of two circular slots, two the symmetry has been seted up two jacks on the inner wall of circular slot, two the jack is linked together with two perpendicular grooves respectively.

Specifically, the positioning mechanism comprises a fixed column, the fixed column is fixedly connected to one end of the rotating shaft away from the motor, the other end of the fixed column is inserted into a sleeve, the sleeve is fixedly sleeved inside the round box, the fixed column is inserted into the round box, one end of the fixed column, which is positioned inside the round box, is fixedly connected with a fixed block, two rotating grooves are symmetrically formed in the side walls of two sides of the fixed block, a first fixed shaft is fixedly connected inside the two rotating grooves, rotating strips are rotatably connected on the surfaces of the two first fixed shafts, the other ends of the two rotating strips are rotatably connected with a second fixed shaft, the two second fixed shafts are respectively rotatably connected to the surfaces of one ends of two push rods, the other ends of the two push rods are respectively inserted into the two connecting cylinders, and one ends of the two connecting cylinders are respectively fixedly sleeved inside the round box, the other end of connecting cylinder is fixed cup joint respectively on the both ends inner wall of outer ring, two the one end of push rod extends to two connecting cylinder outside fixedly connected with fan-shaped blade respectively, two fan-shaped blade joint is inside two fan-shaped grooves, two fan-shaped groove symmetry is seted up on the both ends outer wall of outer ring.

Specifically, anti-sticking stopper mechanism includes the ring draw-in groove, the ring draw-in groove is seted up on the excircle lateral wall of carousel, set up interior ring groove on one side inner wall of ring draw-in groove, the inside joint of ring draw-in groove has the joint post, the other end of joint post is pegged graft inside the fixed orifices, the fixed orifices is seted up on the lower extreme inner wall of drum, fixedly connected with stationary blade on the lateral wall of joint post, stationary blade sliding connection is inside the spout, the spout is seted up on the inner wall of fixed orifices, fixedly connected with spring on the lower extreme inner wall of spout.

Specifically, the ring clamping grooves and the inner ring groove are symmetrically arranged, and the length of the ring clamping grooves is the same as that of the inner ring groove.

Specifically, the rotary drum is fixedly sleeved at the center of the rotary disc.

The invention has the beneficial effects that:

(1) according to the shield cutter with the anti-jamming function, when the rotary table rotates, the ring clamping groove and the inner ring groove are driven to rotate, the clamping column is clamped in the ring clamping groove when the hydraulic cylinder is controlled to push out, the inner wall of the ring clamping groove pushes the clamping column to move out of the cylinder from the inside of the fixed hole, the clamping column is clamped in the ground, the cylinder is fixed in soil by the clamping column, the rotating cutter is supported by the cylinder, and jamming of the cutter is prevented when the cutter moves forwards.

(2) According to the shield cutter with the anti-jamming function, when the hob is worn after long-term use, the thread column is driven to rotate through the square groove, the thread column moves out of the interior of the thread cylinder when rotating, so that the support of the thread column on the triangular block is removed, the thread cylinder can be taken out of the circular groove, the circular rod can move towards the jack, the other end of the circular rod moves out of the interior of the slot, the circular rod is conveniently moved out of the interior of the vertical groove, and the hob is conveniently replaced.

(3) According to the shield cutter with the anti-jamming function, the rotary drum is driven by the rotary table to be far away from the rotary shaft, the rotary shaft pulls the fixed column to move, the fixed column drives the fixed block to move, the fixed block drives the rotary groove to move, the rotary groove pushes the rotary strip, the rotary strip pushes the push rod to move towards the outside of the connecting cylinder, the push rod pushes the fan-shaped blade out of the fan-shaped groove, the fan-shaped blade is clamped in soil, the cylinder moves forwards and is fixed by the cutter, and therefore the cylinder is prevented from shifting during moving.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic structural diagram of a shield cutter with an anti-jamming function according to the present invention;

FIG. 2 is a schematic diagram of an outer ring structure of a shield cutter with an anti-jamming function according to the present invention;

FIG. 3 is a schematic structural diagram of a cutter head mechanism of a shield cutter with an anti-jamming function according to the present invention;

FIG. 4 is an enlarged view of a portion A of FIG. 1 of the shield cutter with an anti-jamming function according to the present invention;

FIG. 5 is an enlarged view of a portion B in FIG. 1 of the shield cutter with an anti-jamming function according to the present invention;

fig. 6 is a schematic structural diagram of a rotating plate of the shield cutter with an anti-jamming function according to the present invention.

In the figure: 1. a cylinder; 2. a rotating mechanism; 21. fixing the circular plate; 22. a frame; 23. a motor; 24. a rotating shaft; 25. hole turning; 26. a clamping groove; 27. sliding blades; 28. a rotating drum; 3. a telescoping mechanism; 31. a circular hole; 32. a hydraulic cylinder; 33. a clamping block; 34. a circular ring; 35. a hemispherical block; 36. a semi-circular groove; 37. a turntable; 4. a cutter head mechanism; 41. a round box; 42. a support pillar; 43. an outer ring; 44. a fixing plate; 45. a groove; 46. a scraper; 47. a sector block; 48. a cutter; 49. a vertical slot; 410. a slot; 411. a round bar; 412. hobbing cutters; 5. an installation mechanism; 51. a circular groove; 52. a threaded barrel; 53. a threaded post; 54. a square groove; 55. an opening; 56. a circular shaft; 57. a triangular block; 58. a clamping groove; 59. a jack; 6. a positioning mechanism; 61. fixing a column; 62. a sleeve; 63. a fixed block; 64. rotating the groove; 65. a first fixed shaft; 66. strip turning; 67. a second fixed shaft; 68. a push rod; 69. a connecting cylinder; 610. a fan-shaped blade; 611. a sector groove; 7. an anti-jamming mechanism; 71. an annular clamping groove; 72. an inner ring groove; 73. a clamping column; 74. a fixing hole; 75. a fixing sheet; 76. a chute; 77. a spring.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-6, the shield cutter with the anti-jamming function according to the present invention comprises a cylinder 1, wherein a rotating mechanism 2 is arranged on an inner wall of the cylinder 1, a telescopic mechanism 3 is arranged on the rotating mechanism 2, a cutter head mechanism 4 is arranged at the other end of the telescopic mechanism 3, an installation mechanism 5 is arranged inside the cutter head mechanism 4, a positioning mechanism 6 is arranged on the telescopic mechanism 3, and an anti-jamming mechanism 7 is arranged inside the cutter head mechanism 4;

slewing mechanism 2 includes fixed plectane 21, fixed plectane 21 is fixed to be cup jointed inside drum 1, fixedly connected with frame 22 on the lateral wall of fixed plectane 21, the inside fixedly connected with motor 23 of frame 22, motor 23's output fixedly connected with pivot 24, pivot 24 rotates to be connected inside rotary hole 25, rotary hole 25 sets up the center department at fixed plectane 21, double-layered groove 26 has been seted up on the other end surface of pivot 24, the inside joint of double-layered groove 26 has gleitbretter 27, the both ends fixed connection of gleitbretter 27 is on the inner wall of same rotary drum 28, starter motor 23 drives the rotation of pivot 24, it rotates to drive double-layered groove 26 when pivot 24 rotates, it rotates to drive gleitbretter 27 when clamping groove 26 rotates, it rotates to drive rotary drum 28 when gleitbretter 27 rotates, it rotates to drive carousel 37 when rotary drum 28 rotates.

Specifically, telescopic machanism 3 includes two round holes 31, two round holes 31 symmetry are seted up on the both ends lateral wall of fixed plectane 21, pneumatic cylinder 32 has all been pegged graft to the inside of two round holes 31, equal symmetrical fixedly connected with fixture block 33 on the both ends outer wall of two pneumatic cylinders 32, the same ring 34 of the other end fixedly connected with of two pneumatic cylinders 32, two hemisphere pieces 35 of symmetrical fixedly connected with on the opposite side lateral wall of ring 34, two hemisphere piece 35 joints are inside same semicircle ring groove 36, semicircle ring groove 36 is seted up on one side lateral wall of carousel 37, carousel 37 joint is on the one end opening inner wall of drum 1.

Specifically, the cutter head mechanism 4 includes a circular box 41, the circular box 41 is fixedly connected to a side wall of the turntable 37 far away from the semicircular groove 36, four support columns 42 are fixedly connected to an outer side wall of the circular box 41 in an annular shape, the other ends of the four support columns 42 are fixedly connected to an inner wall of the same outer ring 43, a fixing plate 44 is fixedly connected to a side wall of the outer ring 43, grooves 45 are respectively formed in two side walls of the fixing plate 44, scrapers 46 are fixedly connected to the insides of the grooves 45, fan-shaped blocks 47 are fixedly connected to two side walls of the fixing plate 44, cutters 48 are fixedly connected to two side walls of the fan-shaped blocks 47, two vertical grooves 49 are symmetrically formed in the side wall of the fixing plate 44, slots 410 are respectively formed in the inner walls of the ends of the two vertical grooves 49 far away from each other, circular rods 411 are respectively inserted into the insides of the two slots 410, and hobs 412 are respectively rotatably connected to the surfaces of the two circular rods 411, the turntable 37 drives the round box 41 to rotate, the supporting column 42 is driven to rotate when the round box 41 rotates, the outer ring 43 is driven to rotate when the supporting column 42 rotates, the fixed plate 44 and the fan-shaped block 47 are driven to rotate when the outer ring 43 rotates, the scraper 46 and the hob 412 are driven by the fixed plate 44 to rotate around the circle center of the outer ring 43, and the cutter 48 is driven to rotate by the fan-shaped block 47, thereby enabling the scraper 46, the cutter 48 and the hob 412 to cut soil and rock, and when the hob 412 is worn after long-term use, the threaded post 53 is rotated by the square groove 54, the threaded post 53 is moved out of the interior of the threaded cylinder 52 when rotated, thereby releasing the triangular block 57 from the threaded post 53 and allowing the threaded cylinder 52 to be removed from the circular groove 51, and the round rod 411 can move into the insertion hole 59, so that the other end of the round rod 411 is moved out of the insertion groove 410, the round rod 411 can be conveniently moved out of the vertical groove 49, and the hob 412 can be conveniently replaced.

Specifically, installation mechanism 5 includes circular slot 51, circular slot 51 is seted up in the lateral wall centre of a circle center department of fixed plate 44, circular slot 51's inside joint has screw thread section of thick bamboo 52, screw thread section of thick bamboo 52's inside threaded connection has screw thread post 53, screw thread post 53 is located the outside one end of screw thread section of thick bamboo 52 and has seted up square groove 54 on the surface, two openings 55 have been seted up to the symmetry on screw thread section of thick bamboo 52's the inner wall, equal fixedly connected with circle axle 56 on two openings 55's the inner wall, two circle axles 56 all rotate on the surface and are connected with triangle piece 57, two triangle pieces 57 joint respectively inside two joint grooves 58, two joint grooves 58 are seted up respectively on two circular slot 51's both sides inner wall, two jacks 59 have been seted up to the symmetry on two circular slot 51's the inner wall, two jacks 59 are linked together with two perpendicular grooves 49 respectively.

Specifically, the positioning mechanism 6 includes a fixing column 61, the fixing column 61 is fixedly connected to one end of the rotating shaft 24 away from the motor 23, the other end of the fixing column 61 is inserted into the sleeve 62, the sleeve 62 is fixedly sleeved inside the round box 41, the fixing column 61 is inserted inside the round box 41, one end of the fixing column 61 located inside the round box 41 is fixedly connected with a fixing block 63, two rotating grooves 64 are symmetrically formed on two side walls of the fixing block 63, the inside of the two rotating grooves 64 is fixedly connected with a first fixing shaft 65, the surfaces of the two first fixing shafts 65 are rotatably connected with rotating strips 66, the other ends of the two rotating strips 66 are rotatably connected with a second fixing shaft 67, the two second fixing shafts 67 are rotatably connected to one end surfaces of two push rods 68 respectively, the other ends of the two push rods 68 are inserted into the two connecting cylinders 69 respectively, one end of the two connecting cylinders 69 are fixedly sleeved inside the round box 41 respectively, the other ends of the two connecting cylinders 69 are fixedly sleeved on the inner walls of the two ends of the outer ring 43 respectively, one ends of the two push rods 68 extend to the outer parts of the two connecting cylinders 69 respectively and are fixedly connected with fan-shaped blades 610, the two fan-shaped blades 610 are clamped inside the two fan-shaped grooves 611 respectively, the two fan-shaped grooves 611 are symmetrically arranged on the outer walls of the two ends of the outer ring 43, when the hydraulic cylinder 32 is pushed out, the ring 34 is pushed to be away from the cylinder 1, the semi-spherical block 35 is driven by the ring 34 to be away from the cylinder 1, the rotary table 37 drives the rotary drum 28 to be away from the rotary shaft 24, the rotary shaft 24 pulls the fixed column 61 to move, the fixed column 61 drives the fixed block 63 to move, the fixed block 63 drives the rotary groove 64 to move, the rotary groove 64 pushes the rotary block 66, the rotary block 66 pushes the push rods 68 to move towards the outer parts of the connecting cylinders 69, the push rods 68 push the fan-shaped blades 610 out of the fan-shaped grooves 611, the fan-shaped blades 610 are clamped in the soil, and the cylinder 1 moves forwards and is fixed by the cutter, thereby preventing the cylinder 1 from being displaced when it is moved.

Specifically, the anti-jamming mechanism 7 includes a ring clamping groove 71, the ring clamping groove 71 is disposed on the outer circumferential side wall of the turntable 37, an inner ring groove 72 is disposed on the inner wall of one side of the ring clamping groove 71, a clamping column 73 is clamped inside the ring clamping groove 71, the other end of the clamping column 73 is inserted into a fixing hole 74, the fixing hole 74 is disposed on the inner wall of the lower end of the cylinder 1, a fixing piece 75 is fixedly connected to the side wall of the clamping column 73, the fixing piece 75 is slidably connected to the inside of the sliding groove 76, the sliding groove 76 is disposed on the inner wall of the fixing hole 74, a spring 77 is fixedly connected to the inner wall of the lower end of the sliding groove 76, when the turntable 37 rotates, the ring clamping groove 71 and the inner ring groove 72 are driven to rotate, the clamping column 73 is clamped in the ring clamping groove 71 when the control hydraulic cylinder 32 is pushed out, the inner wall of the ring clamping groove 71 pushes the clamping column 73 to move out of the cylinder 1 from the inside of the fixing hole 74, the clamping column 73 is clamped in the ground, and the clamping column 73 fixes the cylinder 1 in the soil, support pivoted cutter through drum 1, and then prevent that the cutter from taking place the card stopper when the antedisplacement, and then prevent that the direction of cutter from taking place the skew, make joint post 73 joint in interior annular groove 72 when control pneumatic cylinder 32 moves back, spring 77 promotes stationary blade 75 at the inside removal of spout 76, makes stationary blade 75 drive joint post 73 move back and inserts in interior annular groove 72, makes joint post 73 from the soil in the fixed orifices 74 that moves back, prevents to cause the influence to the removal of drum 1.

Specifically, the ring catching groove 71 and the inner ring groove 72 are symmetrically arranged, and the length of the ring catching groove 71 is the same as that of the inner ring groove 72.

Specifically, drum 28 is fixedly sleeved at the center of turntable 37.

When the soil and rock cutting machine is used, firstly, the motor 23 is started to drive the rotating shaft 24 to rotate, the rotating shaft 24 drives the clamping groove 26 to rotate when the clamping groove 26 rotates, the sliding sheet 27 drives the rotating drum 28 to rotate when the sliding sheet 27 rotates, the rotating disc 37 drives the rotating disc 28 to rotate when the rotating drum 28 rotates, the rotating disc 37 drives the round box 41 to rotate, the supporting column 42 is driven to rotate when the round box 41 rotates, the outer ring 43 is driven to rotate when the supporting column 42 rotates, the fixed plate 44 and the fan-shaped block 47 are driven to rotate when the outer ring 43 rotates, the scraper 46 and the hob 412 are driven to rotate around the circle center of the outer ring 43 by the fixed plate 44, the cutter 48 is driven to rotate by the fan-shaped block 47, the scraper 46, the cutter 48 and the hob 412 cut soil and rocks, when the rotating disc 37 rotates, the ring clamping groove 71 and the inner ring groove 72 are driven to rotate, the clamping column 73 is clamped in the ring clamping groove 71 when the hydraulic cylinder 32 is controlled to push out, the inner wall of the ring clamping groove 71 pushes the clamping column 73 to move out of the cylinder 1 from the inside of the fixed hole 74, the clamping column 73 is clamped in the ground, the clamping column 73 fixes the cylinder 1 in the soil, the rotating cutter is supported by the cylinder 1, the cutter is prevented from being blocked when moving forwards, the direction of the cutter is prevented from being deviated, the clamping column 73 is clamped in the inner annular groove 72 when the hydraulic cylinder 32 is controlled to move backwards, the spring 77 pushes the fixing sheet 75 to move inside the sliding groove 76, the fixing sheet 75 drives the clamping column 73 to move backwards and insert into the inner annular groove 72, the clamping column 73 moves back to the fixing hole 74 from the soil, the influence on the movement of the cylinder 1 is prevented, meanwhile, when the hydraulic cylinder 32 is pushed out, the ring 34 is pushed away from the cylinder 1, the ring 34 drives the semi-spherical block 35 to move away from the cylinder 1, the rotary disc 37 drives the rotary drum 28 to move away from the rotary shaft 24, the rotary shaft 24 pulls the fixing column 61 to move, the fixing column 61 drives the fixing block 63 to move, the fixing block 63 drives the rotary groove 64 to move, the rotating groove 64 pushes the rotating strip 66, the rotating strip 66 pushes the push rod 68 to move towards the outside of the connecting cylinder 69, the push rod 68 pushes the fan-shaped blade 610 out of the fan-shaped groove 611, the fan-shaped blade 610 is clamped in soil, the cylinder 1 is further made to move forwards and fixed by a cutter, the cylinder 1 is further prevented from shifting when moving, after the hob 412 is worn due to long-term use, the threaded column 53 is driven to rotate through the square groove 54, the threaded column 53 moves out of the inside of the threaded cylinder 52 when rotating, the support of the threaded column 53 on the triangular block 57 is further released, the threaded cylinder 52 can be taken out of the round groove 51, the round rod 411 can move into the insertion hole 59, the other end of the round rod 411 moves out of the inside of the insertion groove 410, the round rod 411 is conveniently moved out of the inside of the vertical groove 49, and the hob 412 is convenient to replace.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. The utility model provides a shield constructs cutter of anti-sticking function, includes drum (1), its characterized in that: a rotating mechanism (2) is arranged on the inner wall of the cylinder (1), a telescopic mechanism (3) is arranged on the rotating mechanism (2), a tool bit mechanism (4) is arranged at the other end of the telescopic mechanism (3), an installation mechanism (5) is arranged inside the tool bit mechanism (4), a positioning mechanism (6) is arranged on the telescopic mechanism (3), and an anti-blocking mechanism (7) is arranged inside the tool bit mechanism (4);

the rotating mechanism (2) comprises a fixed circular plate (21), a frame (22), a motor (23), a rotating shaft (24), a rotating hole (25), a clamping groove (26), a sliding sheet (27) and a rotating drum (28), the fixed circular plate (21) is fixedly sleeved inside the cylinder (1), one side wall of the fixed circular plate (21) is fixedly connected with a frame (22), a motor (23) is fixedly connected inside the frame (22), the output end of the motor (23) is fixedly connected with a rotating shaft (24), the rotating shaft (24) is rotatably connected inside a rotating hole (25), the rotating hole (25) is arranged at the center of the fixed circular plate (21), a clamping groove (26) is arranged on the surface of the other end of the rotating shaft (24), a sliding sheet (27) is clamped in the clamping groove (26), two ends of the sliding sheet (27) are fixedly connected to the inner wall of the same rotary drum (28).

2. The shield cutter with the anti-jamming function according to claim 1, characterized in that: the telescopic mechanism (3) comprises two round holes (31), hydraulic cylinders (32), clamping blocks (33), circular rings (34), hemispherical blocks (35), semicircular ring grooves (36) and a turntable (37), the two round holes (31) are symmetrically formed in the side walls of the two ends of the fixed circular plate (21), the hydraulic cylinders (32) are inserted into the two round holes (31), the clamping blocks (33) are symmetrically and fixedly connected to the outer walls of the two ends of the two hydraulic cylinders (32), the other ends of the two hydraulic cylinders (32) are fixedly connected with the same circular ring (34), two hemispherical blocks (35) are symmetrically and fixedly connected to the side wall of the other side of the circular ring (34), the two hemispherical blocks (35) are clamped in the same semicircular groove (36), half ring groove (36) set up in one side lateral wall of carousel (37), carousel (37) joint is on the one end opening inner wall of drum (1).

3. The shield cutter with the anti-jamming function according to claim 1, characterized in that: the cutter head mechanism (4) comprises a round box (41), supporting columns (42), an outer ring (43), a fixing plate (44), a groove (45), scrapers (46), fan-shaped blocks (47), a cutter (48), a vertical groove (49), a slot (410), a round rod (411) and a hob (412), wherein the round box (41) is fixedly connected to one side wall of a turntable (37) far away from a semi-circular groove (36), the outer circular side wall of the round box (41) is fixedly connected with four supporting columns (42) in an annular manner, the other ends of the four supporting columns (42) are fixedly connected to the inner wall of the same outer ring (43), the side wall of the outer ring (43) is fixedly connected with the fixing plate (44), the side walls at the two ends of the fixing plate (44) are respectively provided with the groove (45), the scrapers (46) are respectively and fixedly connected to the inner parts of the grooves (45), the fan-shaped blocks (47) are respectively and fixedly connected to the side walls at the two sides of the fixing plate (44), equal fixedly connected with cutter (48) on the both sides lateral wall of sector (47), two perpendicular grooves (49) have been seted up to the symmetry on the lateral wall of fixed plate (44), two slot (410) have all been seted up on the one end inner wall of keeping away from each other in perpendicular groove (49), two the inside of slot (410) all is pegged graft and has round bar (411), two round bar (411) all rotate on the surface and be connected with hobbing cutter (412).

4. The shield cutter with the anti-jamming function according to claim 1, characterized in that: the mounting mechanism (5) comprises a circular groove (51), a threaded cylinder (52), threaded columns (53), square grooves (54), openings (55), a circular shaft (56), triangular blocks (57), clamping grooves (58) and jacks (59), wherein the circular groove (51) is formed in the center of the circle center of the side wall of the fixing plate (44), the threaded cylinder (52) is clamped in the circular groove (51), the threaded columns (53) are connected to the internal threads of the threaded cylinder (52), the square grooves (54) are formed in the surface of one end, located outside the threaded cylinder (52), of the threaded columns (53), the two openings (55) are symmetrically formed in the inner wall of the threaded cylinder (52), the circular shafts (56) are fixedly connected to the inner wall of the two openings (55), the triangular blocks (57) are rotatably connected to the surface of the circular shafts (56), and the triangular blocks (57) are respectively clamped in the two clamping grooves (58), two joint grooves (58) are respectively opened on the both sides inner wall of two circular slots (51), two jack (59) have been seted up to the symmetry on the inner wall of circular slot (51), two jack (59) are linked together with two perpendicular grooves (49) respectively.

5. The shield cutter with the anti-jamming function according to claim 1, characterized in that: the positioning mechanism (6) comprises a fixed column (61), a sleeve (62), a fixed block (63), rotating grooves (64), a first fixed shaft (65), a rotating strip (66), a second fixed shaft (67), a push rod (68), a connecting cylinder (69), a fan-shaped blade (610) and a fan-shaped groove (611), the fixed column (61) is fixedly connected to one end, far away from the motor (23), of the rotating shaft (24), the other end of the fixed column (61) is inserted into the sleeve (62), the sleeve (62) is fixedly sleeved inside the round box (41), the fixed column (61) is inserted into the round box (41), one end, located inside the round box (41), of the fixed column (61) is fixedly connected with the fixed block (63), two rotating grooves (64) are symmetrically formed in the side walls of the two sides of the fixed block (63), the first fixed shaft (65) is fixedly connected inside the two rotating grooves (64), two all rotate on the surface of first fixed axle (65) and be connected with commentaries on classics strip (66), two the other end of commentaries on classics strip (66) all rotates and is connected with second fixed axle (67), two second fixed axle (67) rotate respectively and connect on the one end surface of two push rods (68), two the other end of push rod (68) is pegged graft respectively inside two connecting cylinders (69), two the one end of connecting cylinder (69) is fixed cup joints respectively inside circle box (41), two the other end of connecting cylinder (69) is fixed cup joints respectively on the both ends inner wall of outer ring (43), two the one end of push rod (68) extends to two connecting cylinders (69) outside fixedly connected with fan-shaped blade (610) respectively, two fan-shaped blade (610) joint is inside two fan-shaped groove (611) respectively, two fan-shaped groove (611) symmetry is seted up on the both ends outer wall of outer ring (43).

6. The shield cutter with the anti-jamming function according to claim 1, characterized in that: the anti-blocking mechanism (7) comprises a ring-shaped blocking groove (71), an inner ring groove (72), a blocking column (73), a fixing hole (74), a fixing piece (75), a sliding groove (76) and a spring (77), the ring clamping groove (71) is arranged on the outer circular side wall of the turntable (37), an inner ring groove (72) is arranged on the inner wall of one side of the ring clamping groove (71), a clamping column (73) is clamped in the ring clamping groove (71), the other end of the clamping column (73) is inserted in the fixing hole (74), the fixing hole (74) is arranged on the inner wall of the lower end of the cylinder (1), the side wall of the clamping column (73) is fixedly connected with a fixing piece (75), the fixing piece (75) is connected inside the sliding groove (76) in a sliding way, the sliding groove (76) is arranged on the inner wall of the fixing hole (74), and a spring (77) is fixedly connected to the inner wall of the lower end of the sliding groove (76).

7. The shield cutter with the jam-preventing function according to claim 6, characterized in that: the ring clamping grooves (71) and the inner ring grooves (72) are symmetrically arranged, and the length of the ring clamping grooves (71) is the same as that of the inner ring grooves (72).

8. The shield cutter with the anti-jamming function according to claim 1, characterized in that: the rotary drum (28) is fixedly sleeved at the center of the rotary disc (37).

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