Shield tunneling machine cutter ring laser shock device and method

Abstract

The shield tunneling machine cutter ring laser shock device comprises a rack, a laser generator, a cutter ring, a cutter ring rotating mechanism, a rotating mechanism and a translation mechanism, and the cutter ring rotating mechanism is connected with the cutter ring so as to drive the cutter ring to rotate around the central axis of the cutter ring. Meanwhile, the translation mechanism is movably arranged on the rack and rotationally connected with part of the rotating mechanism, and part of the rotating mechanism is connected with the cutter ring rotating mechanism, so that the cutter ring rotating mechanism can be driven to move through movement of the rotating mechanism, and then the cutter ring is driven to swing and move relative to the rack; the cutter ring can rotate around the central axis of the cutter ring, so that any position of the surface of the cutter ring can be adjusted to the position corresponding to the position of the laser generator, laser beams can be emitted to the surface of the cutter ring through the laser generator, and laser shock peening operation on all positions of the irregular surface of the cutter ring is achieved. Therefore, the cutter ring can have better anti-fatigue performance and wear-resisting performance.

Description

Technical Field

[0001] The present application relates to the field of cutter ring laser impact technology, and in particular to a shield machine cutter ring laser impact device and method. Background Art

[0002] The cutter ring is the core component of the shield machine's cutterhead. It directly contacts the rock, breaking it through squeezing and cutting. To improve its fatigue and wear resistance, a laser generator is typically used to emit a laser beam onto its surface, creating laser shock peening marks or patterns. This effectively enhances the cutter ring's fatigue and wear resistance.

[0003] The shield machine cutter ring laser peening device is a device that performs laser shock peening on the cutter ring surface. It primarily consists of a laser generator and a cutter ring fixture. After the cutter ring fixture secures the cutter ring, the laser generator emits a laser beam toward the cutter ring surface, achieving laser shock peening of the cutter ring.

[0004] However, in actual use, the outer surface of the cutter ring is usually an irregular surface or a curved surface. Therefore, how to perform laser shock strengthening on the cutter ring with a curved or irregular surface is a problem that needs to be solved urgently. Summary of the Invention

[0005] The purpose of this application is to provide a shield machine cutter ring laser impact device and method, aiming to solve the problem of how to perform laser impact strengthening on the curved surface or irregular surface of the cutter ring.

[0006] In a first aspect, the present application provides a shield machine cutter ring laser impact device, comprising a frame, a laser generator, a cutter ring, a cutter ring rotation mechanism, a rotation mechanism, and a translation mechanism; The knife ring rotating mechanism is connected to the knife ring and is used to drive the knife ring to rotate around the central axis of the knife ring; the laser generator is located on the outside of the knife ring and is used to emit a laser beam to the outer surface of the knife ring to form a laser shock peening mark; the translation mechanism is movably provided on the frame and is connected to a part of the rotation mechanism, and a part of the rotation mechanism is connected to the knife ring rotating mechanism, so that the knife ring is linked through the knife ring rotating mechanism when the part of the rotation mechanism rotates and / or moves.

[0007] In some embodiments, the knife ring rotation mechanism includes a first driving member and a first transmission assembly; The first driving member is in transmission cooperation with the first transmission assembly, and the knife ring is connected to the first transmission assembly so as to drive the knife ring to rotate when the first driving member drives the first transmission assembly to rotate.

[0008] In some embodiments, the first transmission assembly includes a gear assembly and a connecting shaft, the gear assembly is in transmission cooperation with the first driving member, the connecting shaft is connected to the gear assembly, and the knife ring is provided on the connecting shaft.

[0009] In some embodiments, along the direction of the central axis of the knife ring, the connecting shaft includes a shaft segment and a connecting segment connected in sequence, and the outer diameter of the shaft segment is smaller than the outer diameter of the connecting segment; the shaft segment is connected to the gear assembly, and the knife ring is sleeved on the connecting segment.

[0010] In some embodiments, a pressing member is provided on a side of the connecting section away from the shaft section, and a portion of the pressing member is pressed onto the cutter ring; And / or, a sleeve is provided on the outer periphery of the shaft segment, and a bearing is provided on at least one of the two sides of the sleeve along the direction of the central axis of the knife ring, and the bearing sleeve is provided with a bearing seat; the knife ring rotating mechanism also includes a bracket, the bracket is provided on the bearing seat, and the first driving member is provided on the bracket.

[0011] In some embodiments, the gear assembly includes a first gear and a second gear, the first gear is disposed on the output shaft of the first driving member, the second gear is engaged with the first gear, and the second gear is connected to the connecting shaft.

[0012] In some embodiments, the rotating mechanism includes a second driving member and a second transmission assembly, and the second driving member cooperates with the second transmission assembly to drive a portion of the second transmission assembly to rotate relative to the frame, and a portion of the second transmission assembly is connected to the knife ring rotating mechanism to link the knife ring rotating mechanism to swing relative to the frame when the portion of the second transmission assembly rotates.

[0013] In some embodiments, the second transmission assembly includes a transmission worm, a transmission turbine and a rotating platform. The transmission worm is in transmission cooperation with the second driving member, the transmission turbine is engaged with the transmission worm and the transmission turbine is connected to the rotating platform, and the rotating platform is connected to the knife ring rotating mechanism.

[0014] In some embodiments, the translation mechanism includes a third driving member and a third transmission assembly. The third driving member cooperates with the third transmission assembly to drive a portion of the third transmission assembly to move relative to the frame along the length direction of the frame. A portion of the third transmission assembly is rotationally connected to a portion of the rotating mechanism.

[0015] In some embodiments, the third transmission assembly includes a transmission screw and a movable platform, the transmission screw is in transmission cooperation with the third driving member, the movable platform is connected to the transmission screw, and the movable platform is partially rotatably connected to the rotating mechanism; And / or, the third transmission assembly further includes a coupling, which is disposed between the third driving member and the third transmission assembly and is connected to the third driving member and the third transmission assembly respectively.

[0016] In a second aspect, the present application further provides a cutter ring laser impact method, using a shield machine cutter ring laser impact device, comprising the following steps: Connect the knife ring to the knife ring rotating mechanism; The laser generator emits a laser beam to an initial position of the outer surface of the cutter ring to form a laser shock peening mark, and the cutter ring rotation mechanism controls the rotation of the cutter ring; The knife ring is controlled to move a preset distance by a moving mechanism, and is controlled to rotate by a rotating mechanism, so that the point to be laser impacted coincides with the laser beam after the knife ring moves the preset distance; the laser generator emits a laser beam to the point to be laser impacted, and forms a laser shock peening mark; Repeat the above steps until the laser shock peening mark is evenly formed on the outer surface of the cutter ring.

[0017] The technical solution provided by the embodiment of the present invention has the following beneficial effects: The present application provides a shield machine cutter ring laser impact device and method. The shield machine cutter ring laser impact device comprises a frame, a laser generator, a cutter ring, a cutter ring rotation mechanism, a rotation mechanism, and a translation mechanism. The cutter ring rotation mechanism is connected to the cutter ring to drive the cutter ring to rotate about its central axis. At the same time, a translation mechanism is provided that is movably arranged on the frame and rotationally connected to a portion of the rotation mechanism, and a portion of the rotation mechanism is connected to the cutter ring rotation mechanism. Thus, the movement of the rotation mechanism can drive the cutter ring rotation mechanism to move, thereby driving the cutter ring to swing and move relative to the frame, and the cutter ring itself can rotate about its central axis. In this way, any position on the surface of the cutter ring can be adjusted to a position corresponding to the position of the laser generator, so that the laser generator can emit a laser beam to the surface of the cutter ring to achieve laser shock peening operation at various positions on the irregular surface of the cutter ring, so that the cutter ring can have good fatigue resistance and wear resistance after laser shock peening. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 This is a schematic structural diagram of the shield machine cutter ring laser impact device shown in an embodiment of the present application; Figure 2 for Figure 1 The schematic diagram of the structure of the cutter ring of the shield machine cutter ring laser impact device in the initial position is shown; Figure 3 for Figure 1 The schematic structural diagram of the cutter ring of the shield machine cutter ring laser impact device shown is in the first processing position; Figure 4 for Figure 1 The schematic structural diagram of the cutter ring of the shield machine cutter ring laser impact device shown is in the second processing position; Figure 5 for Figure 1 The schematic diagram of the structure of the cutter ring of the shield machine cutter ring laser impact device is shown in the third processing position; Figure 6 for Figure 1 Schematic diagram of the coordination of the cutter ring rotating mechanism, cutter ring, connecting shaft and pressing member of the cutter ring laser impact device of the shield machine shown; Figure 7 for Figure 1 The schematic diagram of the structure of the translation mechanism of the shield machine cutter ring laser impact device shown; Figure 8 for Figure 1 The schematic diagram of the structure of the rotating mechanism of the shield machine cutter ring laser impact device shown; Figure 9 for Figure 1 The schematic diagram of the structure of the cutter ring of the shield machine cutter ring laser impact device shown in FIG, wherein the cutter ring is formed with a laser shock peening array mark; Figure 10 This is a flow chart of the method for the knife ring laser shock method shown in an embodiment of the present application.

[0020] Reference numerals: 100. Frame; 200. Laser generator; 300. Cutting ring; 400. Cutting ring rotating mechanism; 410. First driving member; 420. First transmission assembly; 421. Gear assembly; 422. Connecting shaft; 423. Shaft section; 424. Connecting section; 425. First gear; 426. Second gear; 430. Pressing member; 440. Sleeve; 450. Bearing; 460. Bearing seat; 470. Bracket; 500. Rotating mechanism; 510. Second driving member; 520. Second transmission assembly; 521. Drive worm; 522. Drive turbine; 523. Rotating platform; 600. Translation mechanism; 610. Third driving member; 620. Third transmission assembly; 621. Drive screw; 622. Moving platform; 623. Coupling; 710. First fastener; 720. Second fastener; 800. Laser shock peening mark. DETAILED DESCRIPTION

[0021] In the embodiments of the present application, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, a feature specified as "first," "second," "third," "fourth," "fifth," and "sixth" may explicitly or implicitly include one or more of the features.

[0022] In the embodiments of the present application, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0023] Reference Figures 1 to 9 As shown, the present application provides a shield machine cutter ring laser impact device, including a frame 100, a laser generator 200, a cutter ring 300, a cutter ring rotation mechanism 400, a rotation mechanism 500 and a translation mechanism 600.

[0024] The cutter ring rotation mechanism 400 is connected to the cutter ring 300 and is used to drive the cutter ring 300 to rotate about its central axis. The laser generator 200 is located outside the cutter ring 300 and is used to emit a laser beam toward the outer surface of the cutter ring 300 to form the laser shock peening mark 800. The translation mechanism 600 is movably mounted on the frame 100 and is rotatably connected to a portion of the rotation mechanism 500. Part of the rotation mechanism 500 is connected to the cutter ring rotation mechanism 400, so that when the portion of the rotation mechanism 500 rotates and / or moves, the cutter ring 300 is driven by the cutter ring rotation mechanism 400.

[0025] When implementing it, refer to Figure 1 and Figure 9 As shown, the laser generator 200 is located on the outside of the knife ring 300, and the emitting surface of the laser generator 200 is set toward the knife ring 300, so as to emit a laser beam to the surface of the knife ring 300, so as to form a laser shock strengthening mark 800 or texture on the surface of the knife ring 300, thereby effectively improving the fatigue resistance and wear resistance of the knife ring 300.

[0026] The cutter ring rotation mechanism 400 is connected to the cutter ring 300 and is used to drive the cutter ring 300 to rotate about its central axis, thereby achieving rotation or self-rotation of the cutter ring 300. The translation mechanism 600 is movably disposed on the frame 100 and is rotationally connected to a portion of the rotation mechanism 500. A portion of the rotation mechanism 500 is connected to the cutter ring rotation mechanism 400. Therefore, when the rotation mechanism 500 itself rotates relative to the translation mechanism 600, it can also rotate the cutter ring rotation mechanism 400 in conjunction with the rotation of the cutter ring, thereby driving the cutter ring 300 to swing relative to the frame 100 or relative to the laser generator 200. At the same time, the rotation mechanism 500 can also move with the translation mechanism 600 when the translation mechanism 600 moves relative to the frame 100, thereby driving the cutter ring rotation mechanism 400 to move relative to the frame 100, thereby driving the cutter ring 300 to move relative to the frame 100.

[0027] From the above, it can be seen that the knife ring 300 of this embodiment can rotate by itself, and can move along the length direction of the frame 100 and rotate and swing relative to the frame 100 under the linkage of the knife ring rotating mechanism 400, so that any position of the irregular surface of the knife ring 300 can be rotated to the position corresponding to the emission surface of the laser generator 200, so as to realize the laser shock peening operation on the irregular surface of the knife ring 300.

[0028] For example, the surface of the cutter ring 300 may be as follows: Figure 1The arc convex shape shown is set at three different positions in the trajectory direction of the surface, such as position A, position B and position C. When setting the initial position, position A is set opposite to the emission surface of the laser generator 200, that is, the point normal at position A coincides with the laser beam emitted by the laser generator 200. At this time, the laser generator 200 can generate a laser beam to position A, and then the knife ring 300 can be driven to rotate one circle by the knife ring rotation mechanism 400, so as to realize the laser strengthening operation at position A. For details, refer to Figure 2 The position status shown.

[0029] Then, the translation mechanism 600 moves relative to the frame 100 and finally drives the knife ring 300 to move a distance, for example, to a position between position point A and position point B, and then the rotation mechanism 500 partially rotates so that the position point can be set directly opposite the laser generator 200, that is, the point normal at the position point coincides with the laser beam, and then the laser generator 200 emits a laser beam to the position point, and the knife ring rotation mechanism 400 drives the knife ring 300 to rotate one circle, thereby realizing the laser strengthening operation at the position point. Figure 3 The position status shown.

[0030] Next, the translation mechanism 600 continues to move relative to the frame 100 and eventually drives the cutter ring 300 to move a distance, for example, to position B. Then, the rotation mechanism 500 is partially rotated so that position B can be directly opposite the laser generator 200, that is, the point normal at position B coincides with the laser beam. Then, the laser generator 200 emits a laser beam to position B, and the cutter ring 300 is driven to rotate one circle by the cutter ring rotation mechanism 400, thereby achieving the laser strengthening operation at position B. For details, refer to Figure 4 The position status shown.

[0031] Next, the translation mechanism 600 moves relative to the frame 100 and finally drives the cutter ring 300 to move a distance, for example, to position C. Then, the rotation mechanism 500 partially rotates so that position C can be set directly opposite the laser generator 200, that is, the point normal at position C coincides with the laser beam. Then, the laser generator 200 emits a laser beam to position C, and the cutter ring 300 is driven to rotate one circle by the cutter ring rotation mechanism 400, thereby realizing the laser strengthening operation at position C. For details, refer to Figure 5 The position status shown.

[0032] That is to say, the movement trajectory of the knife ring 300 is along the following Figures 2 to 5The ABC trajectory shown is used to perform laser shock peening operations on various locations of the irregular outer surface of the cutter ring 300.

[0033] In addition, the rotating mechanism 500 can be used to move the knife ring 300 to a certain position, and the point normal corresponding to the position point of the laser generator 200 can be adjusted to coincide with the laser beam to ensure the stability and uniformity of the laser shock strengthening effect at each location on the surface of the knife ring 300.

[0034] Furthermore, since the distance between the laser beam and the surface to be strengthened of the cutter ring 300 has little effect on laser energy loss, the coordinated use of the translation mechanism 600 and the rotation mechanism 500 can also reduce the number of moving pairs of the laser generator 200, that is, there is no need to move the laser generator 200 to align it with different positions on the surface of the cutter ring 300.

[0035] The shield machine cutter ring laser impact device provided in this embodiment is provided with a frame 100, a laser generator 200, a cutter ring 300, a cutter ring rotating mechanism 400, a rotating mechanism 500 and a translation mechanism 600, and the cutter ring rotating mechanism 400 is connected to the cutter ring 300 to drive the cutter ring 300 to rotate around the central axis of the cutter ring 300. At the same time, a translation mechanism 600 is provided which is movably provided on the frame 100 and is partially rotatably connected to the rotating mechanism 500, and part of the rotating mechanism 500 is connected to the knife ring rotating mechanism 400, so that the movement of the rotating mechanism 500 can drive the knife ring rotating mechanism 400 to move, and then drive the knife ring 300 to swing and move relative to the frame 100, and the knife ring 300 itself can rotate around its central axis, so that any position of the surface of the knife ring 300 can be adjusted to a position corresponding to the position of the laser generator 200, so that a laser beam can be emitted to the surface of the knife ring 300 by the laser generator 200, so as to realize laser shock strengthening operation at various positions of the irregular surface of the knife ring 300, so that the knife ring 300 can have better fatigue resistance and wear resistance after laser shock strengthening.

[0036] Reference Figure 1 and Figure 6 As shown, in some embodiments, the cutter ring rotation mechanism 400 includes a first driving member 410 and a first transmission assembly 420. The first driving member 410 and the first transmission assembly 420 are in transmission cooperation, and the cutter ring 300 is connected to the first transmission assembly 420 to drive the cutter ring 300 to rotate when the first driving member 410 drives the first transmission assembly 420 to rotate.

[0037] That is, the first transmission assembly 420 is driven to rotate by the first driving member 410, thereby reliably linking the cutter ring 300 to rotate, so that laser shock peening operations can be performed on various circumferential positions at a certain position of the cutter ring 300 during the laser shock peening operation.

[0038] For example, the first driving member 410 may be a motor or a cylinder.

[0039] Reference Figure 1 and Figure 6 As shown, in some embodiments, the first transmission assembly 420 includes a gear assembly 421 and a connecting shaft 422 , the gear assembly 421 is in transmission cooperation with the first driving member 410 , the connecting shaft 422 is connected to the gear assembly 421 , and the knife ring 300 is provided on the connecting shaft 422 .

[0040] That is, the first driving member 410 drives the gear assembly 421 to rotate, which in turn drives the connecting shaft 422 that rotates with the gear assembly 421 to rotate, and finally drives the cutter ring 300 to rotate by the rotation of the connecting shaft 422. This structure is not only reliable in transmission but also simple in structure.

[0041] In a specific implementation, the knife ring 300 and the connecting shaft 422 can be connected by a sleeve connection or a snap connection.

[0042] Furthermore, the connecting shaft 422 and the gear assembly 421 can be connected using a first fastener 710. For example, connecting holes can be provided on the connecting shaft 422 and the gear assembly 421, respectively. The first fastener 710 can be, for example, a fastening pin or a fastening bolt, which is inserted into the connecting hole to achieve a secure connection between the connecting shaft 422 and the gear assembly 421. Alternatively, in other implementations, the connecting shaft 422 and the gear assembly 421 can be clamped or welded.

[0043] Reference Figure 1 and Figure 6 As shown, in some embodiments, along the direction of the central axis of the knife ring 300, the connecting shaft 422 includes a shaft segment 423 and a connecting segment 424 connected in sequence, and the outer diameter of the shaft segment 423 is smaller than the outer diameter of the connecting segment 424; the shaft segment 423 is connected to the gear assembly 421, and the knife ring 300 is sleeved on the connecting segment 424.

[0044] To avoid the increased weight and cost caused by the excessive size of the connecting shaft 422 itself, only the connecting section 424 connected to the cutter ring 300 can be made larger to facilitate assembly of the cutter ring 300. The shaft end not assembled with the cutter ring 300 can be made smaller, serving only as a connection to the gear assembly 421. Specifically, the outer diameter of the connecting section 424 is set to be larger than the outer diameter of the shaft section 423. The specific difference between the outer diameters of the connecting section 424 and the shaft section 423 can be set according to actual needs.

[0045] For example, the shaft section 423 and the connecting section 424 can be integrally formed to simplify the manufacturing process while improving the overall structural strength of the connecting shaft 422. Alternatively, in other implementations, the connecting section 424 and the shaft section 423 can be formed separately and then welded or screwed together.

[0046] Reference Figure 1 and Figure 6 As shown, in some embodiments, a clamping member 430 is provided on the side of the connecting section 424 away from the shaft section 423, and a portion of the clamping member 430 is pressed onto the knife ring 300 to further fix the knife ring 300 while also playing a limiting role, that is, to prevent the knife ring 300 from detaching from the connecting shaft 422.

[0047] For example, the pressing member 430 may be a pressing plate or a backing plate. The pressing member 430 and the connecting shaft 422 may be connected using a second fastener 720. For example, fastening holes may be provided on the connecting shaft 422 and the pressing member 430, respectively. The second fastener 720 may be a fastening pin or a fastening bolt, which is inserted into the fastening holes to achieve a secure connection between the connecting shaft 422 and the pressing member 430. Alternatively, in other implementations, the connecting shaft 422 and the pressing member 430 may be clamped or welded.

[0048] Reference Figure 1 and Figure 6 As shown, in some embodiments, a sleeve 440 is disposed on the outer periphery of the shaft segment 423. A bearing 450 is disposed on at least one of the two sides of the sleeve 440 along the central axis of the cutter ring 300. A bearing seat 460 is disposed on the outer sleeve of the bearing 450. The cutter ring rotating mechanism 400 further includes a bracket 470, which is disposed on the bearing seat 460. The first driving member 410 is disposed on the bracket 470.

[0049] In specific implementation, by arranging a sleeve 440 and a bearing 450 on the outer periphery of the shaft segment 423, the connecting shaft 422 can be supported to ensure that the connecting shaft 422 can rotate stably and reliably under the drive of the gear assembly 421 to drive the knife ring 300 to rotate.

[0050] For example, bearings 450 may be provided on both sides of the sleeve 440 to support the connecting shaft 422 via the two bearings 450 , thereby further improving the support stability.

[0051] Furthermore, a bearing seat 460 may be provided outside the bearing 450 to support the assembly of the bearing 450 , and the first driving member 410 may be connected to the bearing seat 460 via a bracket 470 to ensure the position reliability and stability of the first driving member 410 .

[0052] For example, the bracket 470 and the bearing seat 460 can be screwed or welded.

[0053] Reference Figure 1 and Figure 6 As shown, in some embodiments, the gear assembly 421 includes a first gear 425 and a second gear 426 , the first gear 425 is disposed on the output shaft of the first driving member 410 , the second gear 426 is engaged with the first gear 425 , and the second gear 426 is connected to the connecting shaft 422 .

[0054] That is to say, when it is necessary to drive the cutting ring 300 to rotate around the direction of its central axis, the first driving member 410 drives the first gear 425 to rotate, and the first gear 425 engages with the second gear 426, thereby transmitting the rotation to the second gear 426, and the second gear 426 is connected to the connecting shaft 422, thereby transmitting the rotation to the connecting shaft 422, and finally driving the cutting ring 300 to rotate through the connecting shaft 422.

[0055] In a specific implementation, the second gear 426 and the connecting shaft 422 may be connected via a first fastener 710 .

[0056] Reference Figure 7 and Figure 8 As shown, in some embodiments, the rotating mechanism 500 includes a second driving member 510 and a second transmission assembly 520. The second driving member 510 and the second transmission assembly 520 are in transmission cooperation, and are used to drive a portion of the second transmission assembly 520 to rotate relative to the frame 100, and a portion of the second transmission assembly 520 is connected to the knife ring rotating mechanism 400 to link the knife ring rotating mechanism 400 to swing relative to the frame 100 when the portion of the second transmission assembly 520 rotates.

[0057] In specific implementation, when the knife ring 300 needs to rotate or swing relative to the frame 100 so that the point normal of the position point to be strengthened impact coincides with the laser beam, the second driving member 510 can drive the partial rotation of the second transmission assembly 520, and the partial rotation of the second transmission assembly 520 drives the knife ring rotating mechanism 400 to rotate, and finally links the knife ring 300 to rotate.

[0058] For example, the second driving member 510 may be a motor or a cylinder.

[0059] Reference Figure 7 and Figure 8As shown, in some embodiments, the second transmission assembly 520 includes a transmission worm 521, a transmission turbine 522 and a rotating platform 523, the transmission worm 521 is in transmission cooperation with the second driving member 510, the transmission turbine 522 is engaged with the transmission worm 521 and the transmission turbine 522 is connected to the rotating platform 523, and the rotating platform 523 is connected to the knife ring rotating mechanism 400.

[0060] In specific implementation, when the knife ring 300 needs to rotate or swing relative to the frame 100, the second driving member 510 drives the transmission worm 521 to move, and the transmission worm 521 engages with the transmission turbine 522, thereby driving the transmission turbine 522 to rotate. The rotation of the transmission turbine 522 drives the rotating platform 523 to rotate, and the rotating platform 523 rotates and drives the knife ring rotating mechanism 400 to rotate, so as to finally link the knife ring 300 to rotate or swing.

[0061] Reference Figure 7 and Figure 8 As shown, in some embodiments, the translation mechanism 600 includes a third driving member 610 and a third transmission assembly 620. The third driving member 610 and the third transmission assembly 620 are in transmission cooperation with each other to drive a portion of the third transmission assembly 620 to move relative to the frame 100 along the length direction of the frame 100, and a portion of the third transmission assembly 620 is rotationally connected to a portion of the rotating mechanism 500.

[0062] In specific implementation, when the knife ring 300 needs to move relative to the frame 100, the third driving member 610 can be used to drive part of the third transmission member to move relative to the frame 100, and the second transmission and component parts can be used to drive part of the rotating mechanism 500 to move, so that when part of the rotating mechanism 500 moves, the knife ring rotating mechanism 400 connected thereto is driven to move, thereby finally linking the knife ring 300 to move.

[0063] The specific moving direction can be referred to Figure 7 As shown by the arrow in .

[0064] For example, the third driving member 610 may be a motor or a cylinder.

[0065] Reference Figure 7 and Figure 8 As shown, in some embodiments, the third transmission assembly 620 includes a transmission screw 621 and a movable platform 622. The transmission screw 621 is in transmission cooperation with the third driving member 610. The movable platform 622 is connected to the transmission screw 621. The movable platform 622 is partially connected to the rotating mechanism 500.

[0066] In specific implementation, when the knife ring 300 needs to move relative to the frame 100, the third driving member 610 can be used to drive the transmission screw 621 to rotate and move, and finally drive the mobile platform 622 to move relative to the frame 100, and drive the partial movement of the rotating mechanism 500 through the mobile platform 622, so that when the partial movement of the rotating mechanism 500, it drives the knife ring rotating mechanism 400 connected thereto to move, so as to finally link the knife ring 300 to move.

[0067] Furthermore, in order to facilitate the connection between the third transmission assembly 620 and the third driving member 610, the third transmission assembly 620 also includes a coupling 623, which is arranged between the third driving member 610 and the third transmission assembly 620 and is connected to the third driving member 610 and the third transmission assembly 620 respectively.

[0068] Specifically, the process principle of laser shock peening operation on the surface of the cutter ring 300 of this embodiment is as follows: When the initial position is set, the point A is directly opposite to the emission surface of the laser generator 200, that is, the point normal at the point A coincides with the laser beam emitted by the laser generator 200. At this time, the laser beam can be generated at the position A by the laser generator 200, and then the first driving member 410 drives the first gear 425 to rotate, the rotation of the first gear 425 drives the second gear 426 to rotate, the rotation of the second gear 426 drives the connecting shaft 422 to rotate, and the rotation of the connecting shaft 422 drives the cutter ring 300 to rotate one circle, thereby realizing the laser strengthening operation at the position A. For details, refer to Figure 2 The position status shown.

[0069] Then, the transmission screw is driven to rotate and move by the third driving member 610, and then the moving platform 622 is driven to move, and the movement of the moving platform 622 drives the rotating platform 523 to move, and the rotating platform 523 drives the knife ring rotating mechanism 400 to move, and finally the knife ring 300 is driven by the knife ring rotating mechanism 400 to move a distance relative to the frame 100, for example, to a position between position point A and position point B, and then the transmission worm 521 is driven to move by the second driving member 510, and the transmission turbine 522 is engaged with the transmission worm 521 to realize rotation, and the transmission turbine 522 is connected to the rotating platform 523, thereby driving the rotating platform 523 to rotate. The rotating platform 523 is connected to the knife ring rotating mechanism 400, thereby driving the knife ring rotating mechanism 400 to rotate, and finally linking the knife ring 300 to rotate, so that the position point can be set opposite to the laser generator 200, that is, the point normal at the position point coincides with the laser beam, and then the laser generator 200 emits a laser beam to the position point, and then the first driving member 410 drives the first gear 425 to rotate, the first gear 425 rotates to drive the second gear 426 to rotate, the second gear 426 rotates to drive the connecting shaft 422 to rotate, and the connecting shaft 422 rotates to drive the knife ring 300 to rotate one circle, thereby realizing the laser strengthening operation at the position point. For details, refer to Figure 3 The position status shown.

[0070] Next, the translation mechanism 600 continues to move relative to the frame 100 and eventually drives the cutter ring 300 to move a distance, for example, to position B. Then, the rotation mechanism 500 is partially rotated so that position B can be directly opposite the laser generator 200, that is, the point normal at position B coincides with the laser beam. Then, the laser generator 200 emits a laser beam to position B, and the cutter ring 300 is driven to rotate one circle by the cutter ring rotation mechanism 400, thereby achieving the laser strengthening operation at position B. For details, refer to Figure 4 The position status shown.

[0071] Next, the transmission screw is driven to rotate and move by the third driving member 610, and then the mobile platform 622 is driven to move, and the movement of the mobile platform 622 drives the rotating platform 523 to move, and the rotating platform 523 drives the knife ring rotating mechanism 400 to move, and finally the knife ring 300 is driven by the knife ring rotating mechanism 400 to move a distance relative to the frame 100, for example, after moving to position point C, and then the transmission worm 521 is driven to move by the second driving member 510, and the transmission turbine 522 is engaged with the transmission worm 521 to realize rotation, and the transmission turbine 522 is connected to the rotating platform 523, thereby driving the rotating platform 523 to rotate, and the rotating platform The platform 523 is connected to the knife ring rotating mechanism 400, thereby driving the knife ring rotating mechanism 400 to rotate, and finally linking the knife ring 300 to rotate, so that the C position point can be set directly opposite the laser generator 200, that is, the point normal at the C position point coincides with the laser beam, and then the laser generator 200 emits a laser beam to the C position point, and then the first driving member 410 drives the first gear 425 to rotate, the first gear 425 rotates to drive the second gear 426 to rotate, the second gear 426 rotates to drive the connecting shaft 422 to rotate, and the connecting shaft 422 rotates to drive the knife ring 300 to rotate one circle, thereby realizing the laser strengthening operation at the C position point. For details, refer to Figure 5 The position status shown.

[0072] That is to say, the movement trajectory of the knife ring 300 is along the following Figures 2 to 5 The ABC trajectory shown is used to perform laser shock peening operations on various locations of the irregular outer surface of the cutter ring 300.

[0073] Reference Figure 10 As shown, this embodiment provides a cutter ring laser impact method, using the above-mentioned shield machine cutter ring laser impact device, including the following steps: S101: Connect the knife ring to the knife ring rotating mechanism.

[0074] S102: a laser generator is used to emit a laser beam to an initial position on the outer surface of the cutter ring to form a laser shock peening mark, and the cutter ring rotation is controlled by the cutter ring rotation mechanism.

[0075] S103: Control the knife ring to move a preset distance through the moving mechanism, and control the knife ring to rotate through the rotating mechanism, so that the point to be laser impacted on the outer surface of the knife ring coincides with the laser beam after the knife ring moves the preset distance; emit a laser beam to the point to be laser impacted by the laser generator, and form a laser shock strengthening mark.

[0076] S104: Repeat the above steps until the laser shock peening mark is evenly formed on the outer surface of the knife ring.

[0077] Through the above steps, any position on the surface of the knife ring 300 can be adjusted to a position corresponding to the position of the laser generator 200, so that a laser beam can be emitted to the surface of the knife ring 300 through the laser generator 200 to realize laser shock strengthening operation at various positions on the irregular surface of the knife ring 300, so that the knife ring 300 can have better fatigue resistance and wear resistance after laser shock strengthening.

[0078] In the description of the embodiments of the present application, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0079] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A shield machine cutter ring laser impact device, characterized in that: It comprises a frame (100), a laser generator (200), a knife ring (300), a knife ring rotating mechanism (400), a rotating mechanism (500), and a translation mechanism (600); The knife ring rotating mechanism (400) is connected to the knife ring (300) and is used to drive the knife ring (300) to rotate around the central axis of the knife ring (300); the laser generator (200) is located outside the knife ring (300) and is used to emit a laser beam toward the outer surface of the knife ring (300) to form a laser shock peening mark (800); The translation mechanism (600) is movably arranged on the frame (100) and is rotatably connected to a portion of the rotation mechanism (500), and a portion of the rotation mechanism (500) is connected to the knife ring rotation mechanism (400), so that the knife ring (300) is linked via the knife ring rotation mechanism (400) when a portion of the rotation mechanism (500) rotates and / or moves.

2. The shield machine cutter ring laser impact device according to claim 1 is characterized in that: The knife ring rotating mechanism (400) comprises a first driving member (410) and a first transmission assembly (420); The first driving member (410) is in transmission cooperation with the first transmission assembly (420), and the knife ring (300) is connected to the first transmission assembly (420) so as to drive the knife ring (300) to rotate when the first driving member (410) drives the first transmission assembly (420) to rotate.

3. The shield machine cutter ring laser impact device according to claim 2, characterized in that: The first transmission assembly (420) comprises a gear assembly (421) and a connecting shaft (422), the gear assembly (421) is in transmission cooperation with the first driving member (410), the connecting shaft (422) is connected to the gear assembly (421), and the knife ring (300) is provided on the connecting shaft (422).

4. The shield machine cutter ring laser impact device according to claim 3, characterized in that: Along the direction of the central axis of the knife ring (300), the connecting shaft (422) includes a shaft section (423) and a connecting section (424) connected in sequence, the outer diameter of the shaft section (423) being smaller than the outer diameter of the connecting section (424); the shaft section (423) is connected to the gear assembly (421), and the knife ring (300) is sleeved on the connecting section (424).

5. The shield machine cutter ring laser impact device according to claim 4, characterized in that: A pressing piece (430) is provided on a side of the connecting section (424) away from the shaft section (423), and a portion of the pressing piece (430) is pressed onto the knife ring (300); And / or, a sleeve (440) is provided on the outer periphery of the shaft segment (423), a bearing (450) is provided on at least one of the two sides of the sleeve (440) along the direction of the central axis of the knife ring (300), and a bearing seat (460) is provided on the outer sleeve of the bearing (450); the knife ring rotating mechanism (400) further includes a bracket (470), the bracket (470) is provided on the bearing seat (460), and the first driving member (410) is provided on the bracket (470).

6. The shield machine cutter ring laser impact device according to claim 3, characterized in that: The gear assembly (421) comprises a first gear (425) and a second gear (426), wherein the first gear (425) is arranged on the output shaft of the first driving member (410), the second gear (426) is meshed with the first gear (425), and the second gear (426) is connected to the connecting shaft (422).

7. The shield machine cutter ring laser impact device according to any one of claims 1 to 6, characterized in that: The rotating mechanism (500) comprises a second driving member (510) and a second transmission assembly (520); The second driving member (510) is in transmission cooperation with the second transmission assembly (520) for driving a portion of the second transmission assembly (520) to rotate relative to the frame (100), and a portion of the second transmission assembly (520) is connected to the knife ring rotating mechanism (400) so as to link the knife ring rotating mechanism (400) to swing relative to the frame (100) when the portion of the second transmission assembly (520) rotates.

8. The shield machine cutter ring laser impact device according to claim 7, characterized in that: The second transmission assembly (520) includes a transmission worm (521), a transmission turbine (522) and a rotating platform (523), wherein the transmission worm (521) is in transmission cooperation with the second driving member (510), the transmission turbine (522) is meshed with the transmission worm (521) and the transmission turbine (522) is connected to the rotating platform (523), and the rotating platform (523) is connected to the knife ring rotating mechanism (400).

9. The shield machine cutter ring laser impact device according to any one of claims 1 to 6, characterized in that: The translation mechanism (600) comprises a third driving member (610) and a third transmission assembly (620); The third driving member (610) is in transmission cooperation with the third transmission assembly (620) and is used to drive a portion of the third transmission assembly (620) to move relative to the frame (100) along the length direction of the frame (100), and a portion of the third transmission assembly (620) is rotationally connected to a portion of the rotating mechanism (500).

10. The shield machine cutter ring laser impact device according to claim 9, characterized in that: The third transmission assembly (620) includes a transmission screw (621) and a movable platform (622), wherein the transmission screw (621) is in transmission cooperation with the third driving member (610), the movable platform (622) is connected to the transmission screw (621), and the movable platform (622) is partially rotatably connected to the rotating mechanism (500); And / or, the third transmission assembly (620) further includes a coupling (623), wherein the coupling (623) is arranged between the third driving member (610) and the third transmission assembly (620) and is connected to the third driving member (610) and the third transmission assembly (620) respectively.

11. A cutter ring laser impact method, using the shield machine cutter ring laser impact device according to any one of claims 1 to 10, characterized in that: The steps include: Connect the knife ring to the knife ring rotating mechanism; The laser generator emits a laser beam to an initial position of the outer surface of the cutter ring to form a laser shock peening mark, and the cutter ring rotation mechanism controls the rotation of the cutter ring; The cutter ring is controlled to move a preset distance by a moving mechanism, and is controlled to rotate by a rotating mechanism, so that the point to be laser impacted on the outer surface of the cutter ring coincides with the laser beam after the cutter ring moves the preset distance; the laser beam is emitted to the point to be laser impacted by the laser generator, and a laser shock peening mark is formed; Repeat the above steps until the laser shock peening mark is evenly formed on the outer surface of the cutter ring.

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