Welding device for repairing cutter head of shield tunneling machine

Abstract

The invention relates to the field of welding, and discloses a welding device for repairing a shield tunneling machine cutterhead, the welding device comprises a first mounting plate and a cutterhead body, an automatic welding mechanism is fixedly mounted at the top of the first mounting plate, the automatic welding mechanism comprises a second mounting plate, and a welding machine is fixedly mounted on the second mounting plate; a welding gun of the welding machine penetrates through the second mounting plate and extends below the second mounting plate; the automatic welding mechanism is used for welding the cutter head body; the grinding and collecting mechanism is mounted on the second mounting plate; the clamping mechanism is positioned above the first mounting plate and is fixedly connected with the automatic welding mechanism; the driving mechanism is located between the clamping mechanism and the automatic welding mechanism, the driving mechanism comprises a fixing box, a double-shaft motor is used for controlling operation of a clamping jaw, the whole device can be fixedly installed at a certain position of a cutterhead body, then the double-shaft motor is used for effectively controlling a welding gun to operate according to a specified track, and the welding efficiency is improved. And the automatic welding effect is effectively achieved, the labor amount of workers is reduced, and the working efficiency and accuracy of the workers are improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding, and more particularly to a welding device for repairing a cutter head of a shield machine. Background Art

[0002] The cutterhead of a shield machine usually consists of a cutterhead body, a cutter, a support structure, a cutter changing structure, etc. The cutterhead body consists of a face plate, a support structure, a cutter mounting seat, a friction protection layer, etc. The components of the cutterhead body can be connected in a variety of ways.

[0003] The tool is usually installed on the cutter disc by welding or other fixing methods. If these welding points are subjected to strong mechanical impact or wear, they may be damaged.

[0004] The connection between the gear and frame of the cutter disc is also welded. The connection between the cutter disc and the drive system is subject to greater force. If the design is improper or the material is fatigued, it is easy to break.

[0005] Wear protection layer. In some cases, in order to increase the wear resistance of the cutter disc, a welded hardened layer is added to certain parts. These layers may gradually wear or fall off under severe friction and impact.

[0006] After the cutterhead of a shield machine has been used for a period of time, it is necessary to inspect and repair each part. The installation methods of the cutters in different parts are different. For some cutters installed with a tool changing structure, the cutters are directly replaced, while for some parts that are welded, such as cutters, wear protection layers, etc., they need to be re-welded. Welding usually requires the use of welding equipment, which usually consists of a welding gun and a welding machine body. During use, the welding machine body is not easy to move, and the welding gun is moved to repair the cutterhead body. Due to the limitation of the welding machine body, the trajectory of the welding gun that can be repaired is limited. Faced with a huge cutterhead, in order to completely repair and weld a certain part, the position of the cutterhead body needs to be constantly changed. However, due to the weight of the cutterhead body itself, the position cannot be flexibly changed, which makes it impossible for the welding gun to completely repair and weld a certain part of the cutterhead. Therefore, we designed a welding device for repairing the cutterhead of a shield machine. Summary of the invention

[0007] The present invention provides a welding device for repairing a cutter head of a shield machine, which solves the problem that due to the limitation of the welding machine body in the related art, the trajectory of the repair welding that can be achieved by the welding gun is limited. In view of the huge cutter head, it is necessary to move the welding equipment several times to completely weld a certain part.

[0008] The present invention provides a welding device for repairing a cutter head of a shield machine, comprising a first mounting plate and a cutter head body, wherein an automatic welding mechanism is fixedly mounted on the top of the first mounting plate, the automatic welding mechanism comprises a second mounting plate, a welding machine is fixedly mounted on the second mounting plate, a welding gun of the welding machine penetrates the second mounting plate and extends to the bottom of the second mounting plate, and the automatic welding mechanism is used for welding the cutter head body;

[0009] A grinding and collecting mechanism, mounted on the second mounting plate, the grinding and collecting mechanism being used to absorb gas at a welding gun of a welding machine;

[0010] A clamping mechanism, located above the first mounting plate and fixedly connected to the automatic welding mechanism, the clamping mechanism being used to clamp the cutter head body;

[0011] The driving mechanism is located between the clamping mechanism and the automatic welding mechanism. The driving mechanism includes a fixing box and is used to drive the clamping mechanism and the automatic welding mechanism to operate.

[0012] As a further optimization scheme of the present invention, the automatic welding mechanism includes a first connecting plate, which is connected to the first mounting plate by bolts; the first connecting plate is fixedly connected to the second connecting plate, the second connecting plate is rotatably connected to the fifth rotating shaft, the third connecting plate is rotatably connected to the fifth rotating shaft, the third connecting plate is rotatably connected to the sixth rotating shaft, the fourth connecting plate and the fifth connecting plate are rotatably connected to the sixth rotating shaft, the fourth connecting plate is rotatably connected to the fourth rotating shaft, the fourth rotating shaft is rotatably connected to the first limit frame, the first limit frame is fixedly connected to the second mounting plate, the second limit frame is inserted into the first limit frame, and the first driving block is arranged inside the second limit frame; the first limit frame is fixedly connected to the second mounting plate.

[0013] As a further optimization scheme of the present invention, a partition is fixedly installed inside the fixed box, and a dual-axis motor is installed between the two partitions; a first drive disk is fixedly connected to the lower end power output shaft of the dual-axis motor, a first tooth groove is opened on the first drive disk, a first shifting piece is arranged inside the first tooth groove, a third rotating shaft is fixedly installed on the first shifting piece, the third rotating shaft passes through the fixed box and is rotatably connected to the fixed box, and the third rotating shaft is fixedly connected to the first drive block.

[0014] As a further optimization scheme of the present invention, the grinding and collecting mechanism includes a rotating tube, which passes through the second mounting plate and is rotatably connected to the second mounting plate, and the rotating tube is rotatably connected to the welding gun; a pulley is fixedly connected to the rotating tube, a second rotating shaft is fixedly connected to the third rotating shaft, two mounting disks are fixedly connected to the second rotating shaft, and a plurality of connecting tubes are arranged between the two mounting disks, the connecting tube is fixedly connected to the second rotating shaft, an extension column is slidably connected to the connecting tube, one end of the extension column is connected to the connecting tube via a first spring, and the other end of the extension column is fixedly connected to an arc plate, and a plurality of the arc plates are connected to the pulley via a driving belt.

[0015] As a further optimization scheme of the present invention, a second gear is fixedly connected to the rotating tube; the grinding and collecting mechanism also includes a first rotating shaft, which is rotatably connected to the second mounting plate, and a first gear is fixedly connected to the first rotating shaft, and the first gear is meshed with the second gear; a mounting cover is rotatably connected to the first rotating shaft, and the mounting cover is fixedly connected to the welding gun, and an exhaust pipe is fixedly connected to the mounting cover, the exhaust pipe passes through the second mounting plate and is fixedly connected to the second mounting plate, a rotating ring is connected to the exhaust pipe, and the rotating ring is rotatably mounted on the rotating tube, and a fan blade is fixedly connected to the first rotating shaft.

[0016] As a further optimization scheme of the present invention, the grinding and collecting mechanism also includes a gas filter plate, which is connected to the mounting cover by bolts, a sealing plate is fixedly connected to the center of the gas filter plate, a guide cover is arranged under the sealing plate, and the guide cover is fixedly connected to the mounting cover.

[0017] As a further optimization scheme of the present invention, a second drive disk is arranged inside the fixed box, and the second drive disk is fixedly connected to the top power output shaft of the dual-axis motor; a second tooth groove is opened on the second drive disk, and a second paddle plate is arranged inside the second tooth groove, and a connecting disk is fixedly connected to the top of the second paddle plate, and a connecting shaft is fixedly connected to the top of the connecting disk, and the connecting shaft passes through the fixed box and is rotatably connected to the fixed box.

[0018] As a further optimization scheme of the present invention, the clamping mechanism includes a support box, the support box is rotatably connected to the connecting shaft, and the support box is fixedly connected to the fixed box; a second rotating sleeve is rotatably connected inside the support box, a second bevel gear is fixedly connected to the second rotating sleeve, a first bevel gear is meshed with a screw, the first bevel gear is fixedly connected to the screw, a support frame is rotatably connected to the screw, the support frame is fixedly connected to the support box, a threaded column is threadedly connected to the screw, a sliding plate is fixedly connected to the threaded column, a clamping claw is provided at the bottom of the sliding plate, a groove is opened on the clamping claw, a reciprocating screw is rotatably installed inside the groove, and a threaded block is threadedly connected to the reciprocating screw The first gear is engaged with the first and second gears and is engaged with the first and second gears of the first and second gears. The third gear is engaged with the first and second gears and is engaged with the first and second gears of the first and second gears. The third gear is engaged with the first and second gears and is engaged with the first and second gears of the first and second gears. The third gear is engaged with the first and second gears and is engaged with the first and second gears.

[0019] As a further optimization scheme of the present invention, the clamping mechanism also includes a first rotating sleeve, a driving column is slidably connected inside the first rotating sleeve, and the driving column is plugged into the second rotating sleeve and the connecting shaft; an electric telescopic rod is fixedly connected to the top of the support box, and a first auxiliary plate is arranged above the electric telescopic rod, and the first auxiliary plate is rotatably connected to the driving column; an extension box is arranged above the support box, and an extension plate is slidably connected inside the extension box, the interior of the threaded block is a cavity structure, and the interior of the threaded block is slidably connected to the second pressure plate, and the second pressure plate is fixedly connected to the first sliding column, and the first sliding column passes through the sliding plate and is connected to the extension plate The extension plate is fixedly connected; a sixth connecting plate is fixedly connected to the top of the two extension boxes, a mounting bracket is fixedly connected to the top of the sixth connecting plate, an auxiliary rod is slidably connected to the mounting bracket, a second auxiliary plate is fixedly connected to the auxiliary rod, a threaded groove is provided on the auxiliary rod, a threaded disk is threadedly connected to the auxiliary rod, a second spring is arranged between the threaded disk and the mounting bracket, a first rotating column is fixedly connected to the bottom of the auxiliary rod, a track groove is provided on the first rotating column, a driving plate is arranged in the track groove, the driving plate is fixedly connected to the mounting bracket, a card slot is provided at the bottom of the first rotating column, and the card slot matches the driving column.

[0020] As a further optimization solution of the present invention, a grinding head is rotatably connected to the bottom end of the rotating tube, and a plurality of through holes are penetrated through the grinding head.

[0021] The beneficial effects of the present invention are:

[0022] 1. The welding device for repairing the cutter head of a shield machine described in the present invention can control the operation of the clamping jaws through a dual-axis motor, and the entire device can be fixedly installed at a certain position of the cutter head body. With the help of the dual-axis motor, the welding gun can be effectively controlled to run along a specified trajectory, effectively achieving the effect of automatic welding, reducing the workload of the staff, and increasing their work efficiency and accuracy. By controlling the electric telescopic rod or replacing the second limit frame and the first drive block of different specifications, the movement trajectory of the welding can also be changed, and it can be suitable for tool repair welding at different positions on the cutter head body and tool repair welding of different forms.

[0023] 2. The welding device for repairing the cutter head of a shield machine described in the present invention can effectively allow the grinding head to grind along a specified trajectory through the combination of a dual-axis motor and a grinding head, thereby facilitating the processing of welding points at the original welding locations of the cutter head body and making subsequent repair welding more convenient.

[0024] 3. The welding device for repairing the cutter head of a shield machine described in the present invention is driven by a dual-axis motor. No matter the dual-axis motor is driving the grinding head or the welding gun, it can cause the fan blades to rotate. With the help of the fan blades to guide the wind, the gas at the welding gun or the grinding head can be absorbed. In this way, the harmful gas generated when the welding gun is working will be absorbed, and the dust generated when the grinding head is working will be absorbed, thereby effectively protecting the staff and reducing environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the automatic grinding mechanism of the present invention;

[0027] Figure 3 yes Figure 1 A magnified schematic diagram of part A;

[0028] Figure 4 It is a schematic diagram of the internal structure of the fixing box of the present invention;

[0029] Figure 5 It is a schematic diagram of the connection between the first driving disk and the third rotating shaft of the present invention;

[0030] Figure 6 It is a schematic diagram of the connection between the connecting shaft and the second driving disk of the present invention;

[0031] Figure 7 is a schematic diagram of the connection between the second rotating shaft and the pulley of the present invention;

[0032] Figure 8It is a schematic diagram of the internal structure of the connecting pipe of the present invention;

[0033] Fig. 9 It is a schematic diagram of the internal structure of the mounting cover of the present invention;

[0034] Fig.10 It is a schematic diagram of the connection between the rotating ring and the rotating tube of the present invention;

[0035] Fig.11 is a cross-sectional view of the grinding head of the present invention;

[0036] Fig.12 It is a structural schematic diagram of the clamping mechanism of the present invention;

[0037] Fig.13 It is a schematic diagram of the internal structure of the clamping jaw of the present invention;

[0038] Fig.14 is a schematic diagram of the connection between the second rotating column and the worm gear of the present invention;

[0039] Fig.15 It is a schematic diagram of the connection between the shield machine cutter head repair welding device and the cutter head body of the present invention;

[0040] Fig.16 It is a schematic diagram of different structural forms of the second limiting frame and the second driving block of the present invention.

[0041] In the figure: 1, first mounting plate; 2, welding machine; 3, second mounting plate; 401, first connecting plate; 402, second connecting plate; 403, third connecting plate; 404, fourth connecting plate; 405, fifth connecting plate; 406, first limiting frame; 407, first driving block; 408, third limiting frame; 409, second driving block; 501, fixing box; 502, dual-axis motor; 503, connecting shaft; 504, partition; 505, first driving disk; 506, first toggle plate; 507, third Rotating shaft; 508, connecting plate; 509, second driving plate; 510, second shifting plate; 601, blocking plate; 602, gas filter plate; 603, mounting cover; 604, exhaust pipe; 605, first gear; 606, fan blade; 607, guide cover; 608, first rotating shaft; 701, pulley; 702, driving belt; 703, second gear; 704, rotating ring; 705, rotating tube; 706, grinding head; 707, mounting plate; 708, arc plate; 709, second rotating shaft; 710, connecting tube; 711, extension column; 712, first spring; 713, through hole; 801, support box; 802, clamping claw; 803, threaded column; 804, first bevel gear; 805, driving column; 806, electric telescopic rod; 807, first rotating sleeve; 808, second rotating sleeve; 809, supporting frame; 810, screw; 811, second bevel gear; 812, first rotating column; 813, driving plate; 814, first auxiliary plate; 815, threaded disk; 816, second Spring; 817, second auxiliary plate; 818, auxiliary rod; 819, extension box; 820, sixth connecting plate; 821, extension plate; 822, sliding plate; 823, auxiliary box; 824, rack; 825, reciprocating screw; 826, worm gear; 827, first pressure plate; 828, hose; 829, first sliding column; 830, second pressure plate; 831, second sliding column; 832, second rotating column; 833, third toggle plate; 834, worm; 835, third gear; 9, cutter head body. DETAILED DESCRIPTION

[0042] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0043] like Figures 1 to 15As shown, a shield machine cutter head repair welding device according to an embodiment of the present invention comprises a first mounting plate 1 and a cutter head body 9. An automatic welding mechanism is fixedly mounted on the top of the first mounting plate 1. The automatic welding mechanism comprises a second mounting plate 3. A welding machine 2 is fixedly mounted on the second mounting plate 3. The welding gun of the welding machine 2 penetrates the second mounting plate 3 and extends to the bottom of the second mounting plate 3. The automatic welding mechanism is used to weld the cutter head body 9.

[0044] A grinding and collecting mechanism, mounted on the second mounting plate 3, the grinding and collecting mechanism is used to absorb the gas at the welding gun of the welding machine 2;

[0045] A clamping mechanism, located above the first mounting plate 1 and fixedly connected to the automatic welding mechanism, the clamping mechanism is used to clamp the cutter head body 9;

[0046] The driving mechanism is located between the clamping mechanism and the automatic welding mechanism. The driving mechanism includes a fixing box 501 and is used to drive the clamping mechanism and the automatic welding mechanism to operate.

[0047] Please refer to Figure 1 , Figure 4 , Figures 12 to 14 ; A second driving disk 509 is arranged inside the fixed box 501, and the second driving disk 509 is fixedly connected to the top power output shaft of the dual-axis motor 502; a second tooth groove is opened on the second driving disk 509, and a second paddle plate 510 is arranged inside the second tooth groove, and a connecting disk 508 is fixedly connected to the top of the second paddle plate 510, and a connecting shaft 503 is fixedly connected to the top of the connecting disk 508, and the connecting shaft 503 passes through the fixed box 501 and is rotatably connected to the fixed box 501; the clamping mechanism includes a supporting box 801, the supporting box 801 is rotatably connected to the connecting shaft 503, and the supporting box 801 is fixedly connected to the fixed box 501; a second rotating sleeve 808 is rotatably connected inside the supporting box 801, and a second bevel gear is fixedly connected to the second rotating sleeve 808 811, the second bevel gear 811 is meshed with the first bevel gear 804, the first bevel gear 804 is fixedly connected with a screw rod 810, the screw rod 810 is rotatably connected with a support frame 809, the support frame 809 is fixedly connected to the support box 801, the screw rod 810 is threadedly connected with a threaded column 803, the threaded column 803 is fixedly connected with a clamping claw 802, and the clamping claw 802 extends to the outside of the support box 801; the clamping mechanism also includes a first rotating sleeve 807, the first rotating sleeve 807 is internally slidably connected with a driving column 805, the driving column 805 is plugged with the second rotating sleeve 808 and the connecting shaft 503, and a second spring 806 is sleeved on the driving shaft, and the two ends of the second spring 806 are respectively connected to the driving column 805 and the first rotating sleeve 807;

[0048] It should be noted that the shield machine cutterhead repair welding device of the present invention is placed on the cutterhead body 9 and the placement position is adjusted;

[0049] Start the dual-axis motor 502 to drive the dual-axis motor 502 in the forward direction, so that the power output shaft at the upper end of the dual-axis motor 502 will drive the second driving disk 509 to rotate, and the second driving disk 509 will act on the second shifting piece 510 due to the second tooth groove, so that the second shifting piece 510 drives the connecting disk 508 to rotate, and the connecting disk 508 drives the connecting shaft 503 to rotate. The rotation of the connecting shaft 503 will rotate through the driving column 805, and the driving column 805 will drive the second rotating sleeve 808 to rotate, and the second rotating sleeve 808 will drive the second bevel gear 811 to rotate, and the second bevel gear 811 drives the first bevel gear 804 to rotate, and the first bevel gear 804 drives the two screws 810 to rotate. Since the two screws 810 rotate in opposite directions, they will continuously drive the two threaded columns 803 to approach each other, and the clamping jaws 802 will also approach each other, so that the clamping jaws 802 can be clamped on the cutter head body 9 for easy fixation.

[0050] Please refer to Figure 2 , Figures 4 to 5 The automatic welding mechanism includes a first connecting plate 401, which is connected to the first mounting plate 1 by bolts; the first connecting plate 401 is fixedly connected to the second connecting plate 402, the second connecting plate 402 is rotatably connected to the fifth rotating shaft, the third connecting plate 403 is rotatably connected to the sixth rotating shaft, the fourth connecting plate 404 and the fifth connecting plate 405 are rotatably connected to the sixth rotating shaft, the fourth connecting plate 404 is rotatably connected to the fourth rotating shaft, the fourth rotating shaft is rotatably connected to the first limiting frame 406, the first limiting frame 406 is fixedly connected to the second mounting plate 3, and the first limiting frame 406 is internally plugged with A second limiting frame, a first driving block 407 is arranged inside the second limiting frame; the first limiting frame 406 is fixedly connected to the second mounting plate 3; a partition 504 is fixedly installed inside the fixed box 501, and a dual-axis motor 502 is installed between the two partitions 504; a first driving disk 505 is fixedly connected to the lower end power output shaft of the dual-axis motor 502, a first tooth groove is opened on the first driving disk 505, a first shifting piece 506 is arranged inside the first tooth groove, a third rotating shaft 507 is fixedly installed on the first shifting piece 506, the third rotating shaft 507 passes through the fixed box 501 and is rotatably connected to the fixed box 501, and the third rotating shaft 507 is fixedly connected to the first driving block 407.

[0051] After the dual-axis motor 502 drives the clamping claw 802 to fix the entire device on the cutter head body 9, the dual-axis motor 502 is controlled to run in the reverse direction, so that the dual-axis motor 502 will not drive the connecting shaft 503 to rotate, but will drive the first driving disk 505 to rotate through the power output shaft at the lower end, and the first driving disk 505 will act on the first shifting piece 506 through the first tooth groove, and the first shifting piece 506 will act on the third rotating shaft 507, so that the third rotating shaft 507 will reverse, and the reversal of the third rotating shaft 507 will drive the first driving block 407 to rotate, and the rotation of the first driving block 407 will drive the first limit frame 406 and the second limit frame to move forward, backward, left and right, and the welding gun is fixed on the second mounting plate 3, and the second mounting plate 3 is fixed on the first limit frame 406, so that the welding gun will also move therewith, so that the welding gun can automatically fix the movement of the trajectory and effectively achieve the effect of automatic welding.

[0052] Please refer to Fig.16 Since the first mounting plate 1 and the first connecting plate 401 are connected by bolts, they can be easily disassembled. After disassembly, the second limiting frame and the first driving block 407 can be removed and replaced with the third limiting frame 408 and the second driving block 409 of different specifications. In this way, the welding operation trajectory will change, which can be applicable to the repair welding of parts of different shapes on the cutter head body 9.

[0053] Please refer to Figures 12 to 14The clamping mechanism includes a support box 801, which is rotatably connected to the connecting shaft 503, and the support box 801 is fixedly connected to the fixed box 501; the support box 801 is rotatably connected to the second rotating sleeve 808, and the second rotating sleeve 808 is fixedly connected to the second bevel gear 811, and the second bevel gear 811 is meshed with the first bevel gear 804, and the first bevel gear 804 is fixedly connected to the screw 810, and the screw 810 is rotatably connected to the support frame 809, and the support frame 809 is fixedly connected to the support box 801, and the screw 810 is threadedly connected to the threaded column 803, and the threaded column 803 is fixed A sliding plate 822 is connected, a clamping claw 802 is arranged at the bottom of the sliding plate 822, a groove is opened on the clamping claw 802, a reciprocating screw rod 825 is rotatably installed inside the groove, a threaded block is threadedly connected to the reciprocating screw rod 825, a second sliding column 831 is fixedly connected to the threaded block, and the second sliding column 831 is fixedly connected to the sliding plate 822; a hose 828 is fixedly installed on the threaded block, an auxiliary box 823 is connected to the hose 828, the auxiliary box 823 is fixedly connected to the clamping claw 802, a first pressing plate 827 is slidably connected inside the auxiliary box 823, and the first pressing plate 827 is connected to the auxiliary box 823 through a third spring , a rack 824 is fixedly connected to the first pressure plate 827, a third gear 835 is meshed on the rack 824, a second rotating column 832 is fixedly connected to the third gear 835, the second rotating column 832 is rotatably connected to the clamping claw 802, a tooth groove is provided inside the third gear 835, a third shifting piece 833 is provided inside the tooth groove, a worm 834 is fixedly connected to the third shifting piece 833, a worm wheel 826 is meshed on the worm 834, and the worm wheel 826 is fixedly connected to the reciprocating screw 825; the clamping mechanism also includes a first rotating sleeve 807, a driving column 805 is slidably connected inside the first rotating sleeve 807, and the driving column 805 is plugged with the second rotating sleeve 808 and the connecting shaft 503; the top of the support box 801 is fixedly connected with the electric telescopic rod 806, and the first auxiliary plate 814 is arranged above the electric telescopic rod 806, and the first auxiliary plate 814 is rotatably connected with the driving column 805; an extension box 819 is arranged above the support box 801, and the extension box 819 is slidably connected with the extension plate 821 inside, the interior of the thread block is a cavity structure, and the interior of the thread block is slidably connected with the second pressing plate 830, and the second pressing plate 830 is fixedly connected with the first sliding column 829, and the first sliding column 829 passes through the sliding plate 822 and is fixedly connected with the extension plate 821;The tops of the two extension boxes 819 are fixedly connected with a sixth connecting plate 820, and the top of the sixth connecting plate 820 is fixedly connected with a mounting frame, an auxiliary rod 818 is slidably connected to the mounting frame, and the auxiliary rod 818 is fixedly connected with a second auxiliary plate 817, a threaded groove is provided on the auxiliary rod 818, a threaded disk 815 is threadedly connected to the auxiliary rod 818, and a second spring 816 is provided between the threaded disk 815 and the mounting frame, and a first rotating column 812 is fixedly connected to the bottom of the auxiliary rod 818, a track groove is provided on the first rotating column 812, and a driving plate 813 is provided in the track groove, and the driving plate 813 is fixedly connected to the mounting frame, and a card slot is provided at the bottom of the first rotating column 812, and the card slot matches the driving column 805;

[0054] It should be noted that, by rotating the threaded disk 815, the threaded disk 815 will continue to move upward until the threaded disk 815 cooperates with the second auxiliary plate 817 to limit the auxiliary rod 818, so that the electric telescopic rod 806 is started, and the electric telescopic rod 806 will squeeze the first rotating column 812, so that the first rotating column 812 moves upward, and the first rotating column 812 will drive the sixth connecting plate 820, the extension box 819, the extension plate 821, and the first sliding column 829 to move upward, and the upward movement of the first sliding column 829 will drive the second pressing plate 830 to move upward, and the second pressing plate The upward movement of 830 will compress the air or liquid into the auxiliary box 823, so that the first pressure plate 827 pushes the rack 824 to move, so that the third gear 835 will rotate, and the third gear 835 will drive the worm 834 to rotate under the action of the third shifting piece 833, and the worm 834 will drive the worm wheel 826 to rotate, and the worm wheel 826 will drive the reciprocating screw 825 to rotate, and the reciprocating screw 825 will drive the threaded block to move, so that the sliding plate 822 and the welding gun will move, so that welding can be continuously performed within a certain range of the cutter disc body.

[0055] Please refer to Fig.12 When a certain part of the cutter body is welded and repaired and needs to be replaced, the threaded disk 815 is rotated to make the threaded disk 815 close to the first rotating column 812, and the electric telescopic rod 806 is started. The electric telescopic rod 806 will drive the first auxiliary plate 814 and the driving column 805 to move up, and the driving column 805 will be plugged into the first rotating column 812. Since magnetic blocks that attract each other are arranged on the opposite surfaces of the extension box 819 and the support box 801, as the driving column 805 continues to move up and under the action of the driving plate 813, the driving column 805 will rotate without directly driving the extension box 819 to separate from the support box 801. The rotation of the driving column 805 will drive the driving column 805 to rotate. In this way, the first bevel gear 804, the second bevel gear 811, and the screw 810 will all rotate in opposite directions, so that the two clamps 802 will run in directions away from each other, thereby loosening the cutter body for easy replacement.

[0056] Please refer to Figure 3 , Figure 7 , Figure 8 As shown, the grinding and collecting mechanism includes a rotating tube 705, which passes through the second mounting plate 3 and is rotatably connected to the second mounting plate 3, and the rotating tube 705 is rotatably connected to the welding gun; a pulley 701 is fixedly connected to the rotating tube 705, a second rotating shaft 709 is fixedly connected to the third rotating shaft 507, two mounting plates 707 are fixedly connected to the second rotating shaft 709, and a plurality of connecting tubes 710 are arranged between the two mounting plates 707, the connecting tube 710 is fixedly connected to the second rotating shaft 709, an extension column 711 is slidably connected to the connecting tube 710, one end of the extension column 711 is connected to the connecting tube 710 through a first spring 712, and the other end of the extension column 711 is fixedly connected to an arc plate 708, and a plurality of arc plates 708 are connected to the pulley 701 through a driving belt 702; a grinding head 706 is rotatably connected to the bottom end of the rotating tube 705, and a plurality of through holes 713 are opened through the grinding head 706.

[0057] It should be noted that the dual-axis motor 502 drives the third rotating shaft 507 to rotate, and also drives the second rotating shaft 709 to rotate. The second rotating shaft 709 drives the arc plate 708 to rotate. The arc plate 708 drives the pulley 701 to rotate through the driving belt 702, so that the rotating tube 705 will rotate.

[0058] By installing a grinding head 706 at the bottom of the rotating tube 705, the grinding head 706 can rotate continuously, and the rotating grinding head 706 will grind the weld of the cutter head body 9, which is convenient for subsequent repair welding;

[0059] And the grinding head 706 will also move along the specified trajectory under the action of the first driving block 407, so that comprehensive grinding can be carried out. When the grinding head 706 moves along the specified trajectory, it will pull or release the driving belt 702. However, due to the action of the first spring 712, the arc plate 708 can expand the pulley 701 very well, effectively avoiding the occurrence of slipping due to insufficient friction expansion.

[0060] Please refer to Figures 9 to 11As shown, the rotating tube 705 is fixedly connected to the second gear 703; the grinding and collecting mechanism also includes a first rotating shaft 608, the first rotating shaft 608 is rotatably connected to the second mounting plate 3, the first rotating shaft 608 is fixedly connected to the first gear 605, and the first gear 605 is meshed with the second gear 703; the first rotating shaft 608 is rotatably connected to the mounting cover 603, the mounting cover 603 is fixedly connected to the welding gun, and the mounting cover 603 is fixedly connected to the exhaust pipe 604, the exhaust pipe 604 passes through the second mounting plate 3 and It is fixedly connected to the second mounting plate 3, a rotating ring 704 is connected to the exhaust pipe 604, the rotating ring 704 is rotatably mounted on the rotating tube 705, and a fan blade 606 is fixedly connected to the first rotating shaft 608; the grinding and collecting mechanism also includes a gas filter plate 602, the gas filter plate 602 is connected to the mounting cover 603 by bolts, a sealing plate 601 is fixedly connected to the center of the gas filter plate 602, a guide cover 607 is arranged below the sealing plate 601, and the guide cover 607 is fixedly connected to the mounting cover 603.

[0061] It should be noted that when the rotating tube 705 rotates, it will also drive the second gear 703 to rotate, the second gear 703 will drive the first gear 605 to rotate, the first gear 605 will drive the first rotating shaft 608 to rotate, the first rotating shaft 608 will drive the fan blades 606 to rotate, and the fan blades 606 will guide the air flow to run, thereby generating suction at the rotating tube 705 with the help of the exhaust pipe 604;

[0062] When welding is performed using a welding torch, the suction force generated by the fan blades 606 can draw the toxic gas during the welding process into the interior of the mounting cover 603, and the harmful substances are filtered and discharged through the gas filter plate 602, thereby preventing the harmful gas from harming the workers and the environment;

[0063] When the grinding head 706 is used for grinding, since the grinding head 706 is provided with a through hole 713, the impurities generated by the grinding head 706 during the grinding process will be absorbed and transferred to the mounting cover 603. Due to the combination of the sealing plate 601 and the guide cover 607, the gas can only act on the gas filter plate 602 for discharge, so that the impurities will also move to the gas filter plate 602. In this way, part of the impurities will adhere to the gas filter plate 602, and part of them will fall to the guide cover 607 for easy collection. When too much impurities accumulate or the gas filter plate 602 needs to be cleaned, it can also be disassembled for cleaning, which is convenient for processing.

[0064] The above describes an embodiment of the present invention, but this embodiment is not limited to the above specific implementation methods. The above specific implementation methods are merely illustrative and not restrictive. Under the guidance of this embodiment, ordinary technicians in this field can also make many forms, all of which are protected by this embodiment.

Claims

1. A shield machine cutterhead repair welding device, comprising a first mounting plate (1) and a cutterhead body (9), characterized in that: An automatic welding mechanism is fixedly mounted on the top of the first mounting plate (1), the automatic welding mechanism comprising a second mounting plate (3), a welding machine (2) is fixedly mounted on the second mounting plate (3), a welding gun of the welding machine (2) passes through the second mounting plate (3) and extends to the bottom of the second mounting plate (3), and the automatic welding mechanism is used for welding the cutter head body (9); A grinding and collecting mechanism, mounted on the second mounting plate (3), the grinding and collecting mechanism being used to absorb gas at a welding gun of a welding machine (2); A clamping mechanism, located above the first mounting plate (1) and fixedly connected to the automatic welding mechanism, the clamping mechanism being used to clamp the cutter head body (9); The driving mechanism is located between the clamping mechanism and the automatic welding mechanism, and the driving mechanism comprises a fixing box (501). The driving mechanism is used to drive the clamping mechanism and the automatic welding mechanism to operate.

2. The shield machine cutter head repair welding device according to claim 1 is characterized in that: The automatic welding mechanism comprises a first connecting plate (401), wherein the first connecting plate (401) is connected to the first mounting plate (1) via bolts; The first connecting plate (401) is fixedly connected to the second connecting plate (402), the second connecting plate (402) is rotatably connected to the fifth rotating shaft, the third connecting plate (403) is rotatably connected to the fifth rotating shaft, the third connecting plate (403) is rotatably connected to the sixth rotating shaft, the fourth connecting plate (404) and the fifth connecting plate (405) are rotatably connected to the sixth rotating shaft, the fourth connecting plate (404) is rotatably connected to the fourth rotating shaft, the fourth rotating shaft is rotatably connected to the first limiting frame (406), the first limiting frame (406) is fixedly connected to the second mounting plate (3), the second limiting frame is inserted into the first limiting frame (406), and the second limiting frame is provided with a first driving block (407) inside. The first limiting frame (406) is fixedly connected to the second mounting plate (3).

3. The shield machine cutter head repair welding device according to claim 2 is characterized in that: A partition (504) is fixedly installed inside the fixed box (501), and a double-axis motor (502) is installed between the two partitions (504); A first driving disk (505) is fixedly connected to the power output shaft at the lower end of the dual-axis motor (502); a first tooth groove is provided on the first driving disk (505); a first shifting plate (506) is arranged inside the first tooth groove; a third rotating shaft (507) is fixedly installed on the first shifting plate (506); the third rotating shaft (507) passes through the fixed box (501) and is rotationally connected to the fixed box (501); and the third rotating shaft (507) is fixedly connected to the first driving block (407).

4. The shield machine cutter head repair welding device according to claim 3 is characterized in that: The grinding and collecting mechanism comprises a rotating tube (705), the rotating tube (705) passes through the second mounting plate (3) and is rotatably connected to the second mounting plate (3), and the rotating tube (705) is rotatably connected to the welding gun; The rotating tube (705) is fixedly connected to a pulley (701), the third rotating shaft (507) is fixedly connected to a second rotating shaft (709), the second rotating shaft (709) is fixedly connected to two mounting plates (707), a plurality of connecting tubes (710) are arranged between the two mounting plates (707), the connecting tube (710) is fixedly connected to the second rotating shaft (709), an extension column (711) is slidably connected to the connecting tube (710), one end of the extension column (711) is connected to the connecting tube (710) via a first spring (712), the other end of the extension column (711) is fixedly connected to an arc plate (708), and a plurality of the arc plates (708) are connected to the pulley (701) via a driving belt (702).

5. The shield machine cutter head repair welding device according to claim 4 is characterized in that: The rotating tube (705) is fixedly connected with a second gear (703); The grinding and collecting mechanism further comprises a first rotating shaft (608), the first rotating shaft (608) being rotatably connected to the second mounting plate (3), a first gear (605) being fixedly connected to the first rotating shaft (608), and the first gear (605) being meshed with a second gear (703); The first rotating shaft (608) is rotatably connected to a mounting cover (603), the mounting cover (603) is fixedly connected to the welding gun, the mounting cover (603) is fixedly connected to an exhaust pipe (604), the exhaust pipe (604) passes through the second mounting plate (3) and is fixedly connected to the second mounting plate (3), the exhaust pipe (604) is connected to a rotating ring (704), the rotating ring (704) is rotatably mounted on a rotating tube (705), and the first rotating shaft (608) is fixedly connected to a fan blade (606).

6. The shield machine cutter head repair welding device according to claim 5 is characterized in that: The grinding and collecting mechanism also includes a gas filter plate (602), which is connected to a mounting cover (603) via bolts; a sealing plate (601) is fixedly connected to the center of the gas filter plate (602); a guide cover (607) is provided below the sealing plate (601); and the guide cover (607) is fixedly connected to the mounting cover (603).

7. The shield machine cutter head repair welding device according to claim 1 is characterized in that: A second drive disk (509) is disposed inside the fixing box (501), and the second drive disk (509) is fixedly connected to the top power output shaft of the dual-axis motor (502); The second driving disk (509) is provided with a second tooth groove, a second paddle plate (510) is arranged inside the second tooth groove, a connecting disk (508) is fixedly connected to the top of the second paddle plate (510), a connecting shaft (503) is fixedly connected to the top of the connecting disk (508), and the connecting shaft (503) passes through the fixed box (501) and is rotatably connected to the fixed box (501).

8. The shield machine cutter head repair welding device according to claim 7 is characterized in that: The clamping mechanism comprises a support box (801), the support box (801) is rotatably connected to the connecting shaft (503), and the support box (801) is fixedly connected to the fixing box (501); The support box (801) is internally rotatably connected to a second rotating sleeve (808), the second rotating sleeve (808) is fixedly connected to a second bevel gear (811), the second bevel gear (811) is meshed with a first bevel gear (804), the first bevel gear (804) is fixedly connected to a screw rod (810), the screw rod (810) is rotatably connected to a support frame (809), the support frame (809) is fixedly connected to the support box (801), the screw rod (810) is meshed with a first bevel gear (804), the first bevel gear (804) is fixedly connected to a screw rod (810), the support frame (809) is fixedly connected to the support box (801), and the screw rod (810) is meshed with a first bevel gear (804). ) is threadedly connected to a threaded column (803), a sliding plate (822) is fixedly connected to the threaded column (803), a clamping jaw (802) is provided at the bottom of the sliding plate (822), a groove is provided on the clamping jaw (802), a reciprocating screw rod (825) is rotatably installed inside the groove, a threaded block is threadedly connected to the reciprocating screw rod (825), a second sliding column (831) is fixedly connected to the threaded block, and the second sliding column (831) is fixedly connected to the sliding plate (822); A hose (828) is fixedly mounted on the threaded block, an auxiliary box (823) is connected to the hose (828), the auxiliary box (823) is fixedly connected to the clamp (802), a first pressing plate (827) is slidably connected inside the auxiliary box (823), the first pressing plate (827) is connected to the auxiliary box (823) via a third spring, a rack (824) is fixedly connected to the first pressing plate (827), and a third gear (83 5), a second rotating column (832) is fixedly connected to the third gear (835), the second rotating column (832) is rotatably connected to the clamp (802), a tooth groove is provided inside the third gear (835), a third shifting piece (833) is provided inside the tooth groove, a worm (834) is fixedly connected to the third shifting piece (833), a worm gear (826) is meshed on the worm gear (834), and the worm gear (826) is fixedly connected to the reciprocating screw (825).

9. The shield machine cutter head repair welding device according to claim 8, characterized in that: The clamping mechanism further comprises a first rotating sleeve (807), a driving column (805) is slidably connected inside the first rotating sleeve (807), and the driving column (805) is plugged with the second rotating sleeve (808) and the connecting shaft (503); The top of the support box (801) is fixedly connected with an electric telescopic rod (806), a first auxiliary plate (814) is arranged above the electric telescopic rod (806), and the first auxiliary plate (814) is rotatably connected to the driving column (805); An extension box (819) is arranged above the support box (801), an extension plate (821) is slidably connected inside the extension box (819), the interior of the threaded block is a cavity structure, a second pressing plate (830) is slidably connected inside the threaded block, a first sliding column (829) is fixedly connected to the second pressing plate (830), and the first sliding column (829) passes through the sliding plate (822) and is fixedly connected to the extension plate (821); The tops of the two extension boxes (819) are fixedly connected with a sixth connecting plate (820), the top of the sixth connecting plate (820) is fixedly connected with a mounting frame, an auxiliary rod (818) is slidably connected to the mounting frame, the auxiliary rod (818) is fixedly connected with a second auxiliary plate (817), a threaded groove is provided on the auxiliary rod (818), a threaded disk (815) is threadedly connected to the auxiliary rod (818), a second spring (816) is arranged between the threaded disk (815) and the mounting frame, the bottom of the auxiliary rod (818) is fixedly connected with a first rotating column (812), the first rotating column (812) is provided with a track groove, a driving plate (813) is arranged in the track groove, the driving plate (813) is fixedly connected to the mounting frame, the bottom of the first rotating column (812) is provided with a card slot, and the card slot matches the driving column (805).

10. The shield machine cutter head repair welding device according to claim 4, characterized in that: The bottom end of the rotating tube (705) is rotatably connected to a grinding head (706), and a plurality of through holes (713) are formed through the grinding head (706).

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