A cable winding device for steam turbine blade repair

Abstract

The application relates to a cable winding device for steam turbine blade repair, which comprises a box body, a winding assembly, a clamping assembly and a limiting assembly. The winding assembly comprises a winding drum for winding a cable connected between a laser gun and a laser device in the box body. The clamping assembly comprises a clamping shell with a first cavity, a movable piece and a first return spring. The movable piece is provided with a relatively fixed touch part and a blocking part at two ends. The limiting assembly comprises a first chamber and a second chamber. The first chamber is provided with a cam fixed to a rotating shaft. The second chamber is provided with a piston and a second return spring. If the laser gun is clamped to the clamping assembly, the top end of the touch part can abut against the laser gun. The blocking part divides the first cavity into an A cavity and a B cavity, so that the second chamber communicating with the A cavity is isolated from the atmospheric pressure, the limiting of the winding drum is realized, and the winding drum stops winding and unwinding.

Description

TECHNICAL FIELD

[0001] The present application relates to the winding technical field, and in particular, relates to a cable winding device for repairing a steam turbine blade. BACKGROUND

[0002] The last-stage blade of a steam turbine is the last-stage blade of a steam turbine unit in a power plant, is a group of blades with the longest length and the largest weight, and the working medium of the steam turbine is water vapor. When the airflow flows to the last-stage blade, a certain amount of liquid water droplets are contained in the water vapor, which will cause erosion to the high-speed rotating last-stage blade, and the strength, balance state, working efficiency and service life of the last-stage blade of the steam turbine are greatly affected. Since the last-stage blade of the steam turbine has the longest length and the largest weight, the centrifugal force it bears is also the largest. If it is not repaired in time, it may even cause the rupture of the blade and a major quality accident.

[0003] In the existing repair process of the last-stage blade of the steam turbine, laser welding is often used. In the use process of the existing laser welding device, the relative position between the laser gun and the laser will change with the specific process scene, for example, away or close, so that the cable connected between the two also changes. When the relative position changes greatly, the cable appears in a chaotic and scattered state. At this time, the worker needs to pay attention to the cable situation at all times during the work process, so as to avoid too short and violent tearing of the cable, or too long and falling on the ground causing unnecessary trampling. The length of the cable cannot be effectively controlled, and the cable is prone to twisting and winding, thereby causing damage to the cable, affecting the function of the laser welding device, and hindering the repair of the last-stage blade of the steam turbine. This not only affects the work efficiency of the worker, but also has safety hazards. SUMMARY

[0004] The present application provides a cable winding assembly for repairing a steam turbine blade, to solve the technical problem that the length of the cable between the laser and the laser gun in the prior art cannot be effectively controlled, the cable is easy to scatter, and the cable is prone to twisting and winding, thereby causing damage to the cable.

[0005] The present application provides a cable winding device for repairing a steam turbine blade, comprising:

[0006] a box body;

[0007] a winding assembly comprising a winding drum, the winding drum being rotatably arranged in the box body and being used for winding a cable, the cable being used for connecting a laser gun and a laser located in the box body;

[0008] The engaging assembly comprises an engaging shell fixed to the box body and a movable member slidingly connected to the engaging shell, two ends of the movable member are respectively provided with a triggering portion and a blocking portion, the triggering portion and the blocking portion are fixed oppositely, the top end of the triggering portion is located above the engaging shell and can abut against the laser gun, the engaging shell has a first cavity with an opening, the blocking portion is sealingly and slidingly connected to the opening and can divide the first cavity into an A cavity and a B cavity, the A cavity has a first air hole, the B cavity has a second air hole, the second air hole is connected to the outside atmosphere; the engaging shell is provided with a first reset spring, one end of the first reset spring is fixed to the engaging shell, the other end is fixed to the movable member, and always has a movement trend of driving the blocking portion away from the bottom wall of the first cavity; and,

[0009] The limiting assembly comprises a limiting box fixed to the box body, the limiting box has a cavity, the cavity is sealingly and slidingly connected with a piston and divides the cavity into a first cavity and a second cavity, the first cavity is provided with a cam, the cam is fixed to a rotating shaft, the rotating shaft is pivotally connected to the first cavity and drivingly connected to the winding drum; the first cavity or the second cavity is provided with a second reset spring, one end of the second reset spring is fixed to the cavity wall of the cavity, the other end is fixed to the piston, and always has a movement trend of driving the piston towards the cam; the second cavity has a third air hole, the third air hole and the first air hole are connected by an air pipe.

[0010] Further, the engaging shell has a partition plate, the partition plate divides the engaging shell into the first cavity and a second cavity, the second cavity is located above the first cavity, the movable member comprises a movable piece, the movable piece is arranged in the second cavity, the triggering portion is a columnar structure, the triggering portion extends along the upper surface of the movable piece and protrudes from the upper surface of the movable piece, the triggering portion is slidingly connected to the engaging shell, the top end of the triggering portion extends out of the upper end surface of the engaging shell and can abut against the laser gun; the blocking portion is a plate-like structure, the blocking portion extends along the lower surface of the movable piece and protrudes from the lower surface of the movable piece and extends out of the lower surface of the second cavity and is slidingly connected to the opening of the first cavity; the first reset spring is arranged in the second cavity, one end of the first reset spring is connected to the cavity wall of the second cavity, the other end is connected to the movable piece, and always has a movement trend of driving the blocking portion away from the bottom wall of the first cavity.

[0011] Further, the winding drum comprises a drum body, and a first limiting portion and a second limiting portion respectively fixed at two ends of the drum body, the first limiting portion and the second limiting portion both extend radially outward and protrude from the outer peripheral wall of the drum body, and the first limiting portion is pivotally connected with the box body;

[0012] The central axis of the drum body is provided with a wire slot, and the wire slot penetrates the first limiting portion and the second limiting portion in the axial direction;

[0013] The second limiting portion is provided with a wire hole, and the axis of the wire hole is not collinear with the axis of the wire slot, and the wire hole penetrates the second limiting portion in the axial direction;

[0014] Wherein, the axial direction is the axial direction of the drum body.

[0015] Further, the side wall of the wire slot has a first opening, and the first opening penetrates the drum body, the first limiting portion and the second limiting portion in the radial direction and the axial direction;

[0016] The side wall of the wire hole has a second opening, and the second opening penetrates the corresponding second limiting portion in the radial direction and the axial direction;

[0017] Wherein, the radial direction is the radial direction of the drum body, and the first opening and the second opening are arranged in the circumferential direction of the drum body.

[0018] Further, the bottom end surface of the first limiting portion is provided with an annular sliding groove, the annular sliding groove is coaxial with the drum body, the opening of the annular sliding groove faces and penetrates the bottom end surface of the first limiting portion; the box body is fixedly provided with a sliding rail in sliding connection with the annular sliding groove, the guide portion of the sliding rail is matched with and in sliding connection with the annular sliding groove, and the fixed portion of the sliding rail protrudes outside the annular sliding groove and protrudes from the bottom end surface of the first limiting portion; or,

[0019] The box body is fixedly provided with the annular sliding groove, the opening of the annular sliding groove faces the first limiting portion, the bottom end surface of the first limiting portion is provided with a sliding rail in sliding connection with the annular sliding groove, the sliding rail is coaxial with the drum body, the guide portion of the sliding rail is matched with and in sliding connection with the annular sliding groove, and the fixed portion of the sliding rail protrudes outside the annular sliding groove.

[0020] Further, the sliding rail comprises a plurality of sliding blocks, and the plurality of sliding blocks are arranged in the circumferential direction and are in sliding connection with the annular sliding groove; or the sliding rail is an annular sliding rail, the annular sliding rail comprises at least two arc-shaped sliding rails, and the arc-shaped sliding rails combine to form a closed circular ring structure; the annular sliding groove comprises at least two arc-shaped sliding grooves, and the arc-shaped sliding grooves combine to form a closed circular ring structure, wherein the arc-shaped sliding rails are in sliding connection with the arc-shaped sliding grooves in one-to-one correspondence.

[0021] Further, the winding assembly further comprises a handle arranged at the edge close to the second limiting part, and the handle is used to drive the winding drum to rotate relative to the box body.

[0022] Further, the circumference of the first limiting part is provided with a gear ring, the rotating shaft is fixedly connected with a first gear, the first gear is engaged with a second gear, the second gear is pivotally connected to the first cavity and engaged with the gear ring.

[0023] Further, the first reset spring is a compression spring, one end of the compression spring is fixedly connected to the bottom wall of the second cavity, and the other end is fixedly connected to the lower surface of the movable piece; or the first reset spring is a tension spring, one end of the tension spring is fixedly connected to the top wall of the second cavity, and the other end is fixedly connected to the upper surface of the movable piece; and / or,

[0024] The second reset spring is a tension spring arranged in the first cavity, one end of the tension spring is fixedly connected to the piston, and the other end is fixedly connected to the inner wall of the first cavity; or the second reset spring is a compression spring arranged in the second cavity, one end of the compression spring is fixedly connected to the piston, and the other end is fixedly connected to the inner wall of the second cavity.

[0025] Further, the clamping assembly further comprises a plurality of clamping blocks arranged on the clamping shell, and the plurality of clamping blocks are used to clamp the laser gun.

[0026] The cable winding device for repairing the turbine blade has the following beneficial technical effects:

[0027] (1) On the one hand, the winding drum can freely wind and unwind the cable in the working state of the laser gun, and can adapt to the different working distance requirements of the laser gun and the last-stage blade of the turbine, thereby facilitating the smooth repair of the last-stage blade of the turbine; on the other hand, the laser gun can be limited in the non-working state, the winding drum stops winding and unwinding the cable, the cable is prevented from being loose and wound, the cable is protected, the service life of the cable is prolonged, and the function of the laser welding device is ensured.

[0028] (2) When the laser gun is not working, the laser gun is clamped on the clamping assembly, the laser gun is conveniently stored, the laser gun is prevented from accidentally falling during the movement of the device, and the laser gun is prevented from being damaged. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 The assembly structure diagram of the cable winding device for repairing the turbine blade is provided for the embodiments of the present application;

[0030] Figure 2A cross-sectional structure schematic view of a winding assembly in a cable winding device for steam turbine blade repair provided by the embodiment of the present application;

[0031] Figure 3 A top view structure schematic view of a winding assembly in a cable winding device for steam turbine blade repair provided by the embodiment of the present application;

[0032] Figure 4 A cross-sectional structure schematic view of a clamping assembly in a cable winding device for steam turbine blade repair provided by the embodiment of the present application;

[0033] Figure 5 A Figure 4 A local structure schematic view at A in the middle;

[0034] Figure 6 A cross-sectional structure schematic view of a limiting assembly in a cable winding device for steam turbine blade repair provided by the embodiment of the present application;

[0035] Explanation of reference signs:

[0036] 10, box; 101, laser gun; 102, laser; 103, cable; 104, slide rail;

[0037] 100, winding assembly; 110, winding drum; 120, drum body; 121, wire slot; 122, first opening; 130, first limiting part; 131, annular slide groove; 132, gear ring; 140, second limiting part; 141, wire hole; 142, second opening; 143, handle; 144, flexible sleeve;

[0038] 200, clamping assembly; 201, clamping block; 202, flexible pad; 203, air pipe; 210, clamping shell; 220, movable piece; 221, movable sheet; 222, touch part; 223, blocking part; 230, first cavity; 231, first air hole; 240, second cavity; 241, first return spring;

[0039] 300, limiting assembly; 310, limiting box; 320, piston; 330, first chamber; 331, cam; 332, rotating shaft; 333, first gear; 334, second gear; 340, second chamber; 341, third air hole; 342, second return spring. DETAILED DESCRIPTION

[0040] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the following will combine the attached Figure 1 -6 detailed description of the specific embodiments of the present application.

[0041] The embodiment of the present application provides a cable winding device for steam turbine blade repair, as shown in the attachedFigure 1 — Figure 5 The cable winding device includes a housing 10, a winding assembly 100, a locking assembly 200, and a limiting assembly 300. The winding assembly 100 includes a winding drum 110 rotatably mounted on the housing 10 for winding a cable 103. The cable 103 connects a laser gun 101 and a laser 102 located inside the housing 10. The locking assembly 200 includes a locking housing 210 fixed to the housing 10 and a movable member 220 slidably connected to the locking housing 210. The device has a triggering part 222 and a blocking part 223 at each end. The triggering part 222 and the blocking part 223 are fixed relative to each other. The top of the triggering part 222 is located above the engaging housing 210 and can abut against the laser gun 101. The engaging housing 210 includes a first cavity 230 with an opening. The blocking part 223 is sealed and slidably connected to the opening and can divide the first cavity 230 into cavity A and cavity B. Cavity A has a first vent 231 and cavity B has a second vent. The second vent is connected to the external atmospheric pressure. The engaging housing 210 is provided with a first return spring 241. One end of the first return spring 241 is fixed to the engaging housing 210, and the other end is fixed to the movable member 220. It always has a tendency to drive the blocking part 223 away from the bottom wall of the first cavity 230. The limiting assembly 300 includes a limiting box 310 fixed to the housing 10. The limiting box 310 has a chamber. A piston 320 is slidably connected to the chamber and divides the chamber into a first chamber 330 and a second chamber 340. The first chamber 330... The chamber 330 is equipped with a cam 331, which is fixed to a rotating shaft 332. The rotating shaft 332 is pivotally connected to the first chamber 330 and is driven to the winding drum 110. The chamber is equipped with a second return spring 342, one end of which is fixed to the chamber wall and the other end is fixed to the piston 320. The second return spring 342 always has the tendency to drive the piston 320 toward the cam 331. The second chamber 340 has a third air hole 341, and an air pipe 203 is connected between the third air hole 341 and the first air hole 231.

[0042] The working principle of the embodiment of the present application is as follows: if the laser gun 101 needs to end work, the laser gun 101 is clamped on the clamping assembly 200, the laser gun 101 abuts against the triggering part 222, under the gravity of the laser gun 101, the triggering part 222 drives the blocking part 223 to move along the height direction of the first cavity 230 and abut against the bottom end face of the first cavity 230, at this time, the first cavity 230 is divided into an A cavity and a B cavity, the third air hole 341 of the second chamber 340 is isolated from the second air hole in the B cavity which is communicated with the outside atmospheric pressure through the first air hole 231 of the A cavity, the second cavity 240 becomes a closed space, the piston 320 is stopped, the cam 331 is stopped from rotating, the rotating shaft 332 hinders the rotating of the winding drum 110, the limiting of the winding drum 110 is realized, and the winding drum 110 stops winding and unwinding the wire; if the laser gun 101 needs to work, the laser gun 101 is taken off from the clamping assembly 200, the laser gun 101 does not abut against the triggering part 222, the first reset spring 241 releases the elastic potential energy, drives the blocking part 223 to move away from the bottom wall of the first cavity 230, makes the third air hole 341 of the second chamber 340 communicated with the second air hole in the B cavity which is communicated with the outside atmospheric pressure through the first air hole 231 of the A cavity, the piston 320 reciprocates, the cam 331 rotates, the rotating shaft 332 rotates with the winding drum 110, and the winding drum 110 realizes winding and unwinding the wire.

[0043] Therefore, the cable winding device for repairing the turbine blade provided by the embodiment of the present application can realize that the winding drum 110 winds and unwinds the wire freely in the working state of the laser gun 101, adapt to the different working distance requirements of the laser gun 101 and the turbine last stage blade, and be beneficial to smoothly carrying out the repair work of the turbine last stage blade; on the other hand, the laser gun 101 can realize the limiting of the winding drum 110 in the non-working state, the winding drum 110 stops winding and unwinding the wire, prevents the cable 103 from loosening and winding, protects the cable 103, prolongs the service life of the cable 103, and guarantees the function of the laser welding device; in addition, the laser gun 101 is clamped on the clamping assembly 200 when the laser gun 101 does not work, which is convenient for the storage of the laser gun 101 and prevents the laser gun 101 from accidentally falling and being damaged during the movement of the device.

[0044] Referring to the accompanying drawings Figure 4 and Figure 5The embodiment of the present application, the clamping shell 210 has a partition plate, the partition plate divides the clamping shell 210 into a first cavity 230 and a second cavity 240, the second cavity 240 is located above the first cavity 230, the movable piece 220 includes a movable piece 221, the movable piece 221 is arranged in the second cavity 240, the actuating portion 222 is a columnar structure, the actuating portion 222 extends along the upper surface of the movable piece 221 and protrudes from the upper surface of the movable piece 221, the actuating portion 222 is slidingly connected to the clamping shell 210, the top end of the actuating portion 222 extends out of the upper end surface of the clamping shell 210 and can abut against the laser gun 101, the blocking portion 223 is a plate-shaped structure, the blocking portion 223 extends along the lower surface of the movable piece 221 and protrudes from the lower surface of the movable piece 221 and extends out of the lower surface of the second cavity 240 and is slidingly connected to the opening, the first reset spring 241 is arranged in the second cavity 240, one end of the first reset spring 241 is connected to the cavity wall of the second cavity 240, the other end is connected to the movable piece 221, and the first reset spring 241 always has a movement trend of driving the blocking portion 223 away from the bottom wall of the first cavity 230.

[0045] Specifically, if the laser gun 101 is in an inoperative state, the laser gun 101 abuts against the actuating portion 222, under the action of gravity of the laser gun 101, the actuating portion 222 drives the movable piece 221 and the blocking portion 223 to move along the height direction of the first cavity 230, and when the blocking portion 223 abuts against the bottom end surface of the first cavity 230, the first cavity 230 is divided into an A cavity and a B cavity, the first air hole 231 of the A cavity and the third air hole 341 of the second chamber 340 are both isolated from the second air hole of the B cavity, the piston 320 is stopped, the cam 331 is stopped from rotating, the rotating shaft 332 hinders the rotating drum 110 from rotating, and the rotating drum 110 stops winding and unwinding the wire; if the laser gun 101 is in an operative state, the laser gun 101 does not abut against the actuating portion 222, the first reset spring 241 drives the blocking portion 223 to move away from the bottom wall of the first cavity 230, the first air hole 231 of the A cavity and the third air hole 341 of the second chamber 340 are both communicated with the second air hole of the B cavity, the piston 320 reciprocates, the cam 331 rotates, the rotating shaft 332 rotates with the rotating drum 110, and the rotating drum 110 realizes winding and unwinding the wire.

[0046] Referring to the accompanying drawings Figure 2The embodiment of the present application, the winding drum 110 includes a drum body 120, and the first limiting part 130 and the second limiting part 140 respectively fixed at both ends of the drum body 120, the first limiting part 130 and the second limiting part 140 both extend radially outward and protrude from the outer peripheral wall of the drum body 120, and the first limiting part 130 is pivotally connected with the box body 10; the central axis of the drum body 120 is provided with a wire slot 121, the wire slot 121 penetrates the first limiting part 130 and the second limiting part 140 in the axial direction; the second limiting part 140 is provided with a wire hole 141, the axis of the wire hole 141 is not collinear with the axis of the wire slot 121, and the wire hole 141 penetrates the second limiting part 140 in the axial direction; wherein the axial direction is the axial direction of the drum body 120.

[0047] It should be noted that the cable 103 is wound on the drum body 120, and the first limiting part 130 and the second limiting part 140 are provided to prevent the cable 103 from being pulled out from both ends of the drum body 120. When winding and unwinding the cable 103, the winding drum 110 rotates around the central axis, the wire slot 121 is arranged at the central axis of the drum body 120 and penetrates the first limiting part 130 and the second limiting part 140, and the cable 103 penetrates the wire slot 121. In this way, when the winding drum 110 rotates, the cable 103 located at the central axis of the drum body 120 does not rotate, preventing the cable 103 outside the two end faces of the winding drum 110 from being twisted and wound when the winding drum 110 rotates; the wire hole 141 is arranged in the second limiting part 140 and is used to guide the cable 103 to be wound on the outer peripheral wall of the drum body 120, and the wire slot 121 and the wire hole 141 cooperate with each other to avoid the cable 103 being scattered and difficult to be stored, and to avoid the phenomenon of twisted winding of the cable 103.

[0048] In the specific embodiment of the present application, the wire hole 141 is arranged at the edge part close to the second limiting part 140.

[0049] In the embodiment of the present application, the use method of the winding drum 110 is that the cable 103 is detached from the laser 102 and the laser gun 101, the cable 103 penetrates the wire slot 121 from the first limiting part 130, penetrates the wire slot 121 from the second limiting part 140 and then penetrates the wire hole 141, and then is wound neatly along the drum body 120 after penetrating the wire hole 141, avoiding the phenomenon of scattered and difficult to be stored and twisted winding of the cable 103.

[0050] Referring to the accompanying drawings Figure 3The side wall of the wire slot 121 has a first opening 122 which penetrates the barrel 120, the first limiting part 130 and the second limiting part 140 in the radial direction and the axial direction; the side wall of the wire hole 141 has a second opening 142 which penetrates the second limiting part 140 in the radial direction and the axial direction; wherein the radial direction is the radial direction of the barrel 120, and the first opening 122 and the second opening 142 are arranged at intervals in the circumferential direction of the barrel 120. In this way, when it is necessary to wind the cable 103, the cable 103 is introduced into the wire slot 121 from the first opening 122, and the cable 103 is introduced into the wire hole 141 from the second opening 142, and then the cable 103 is wound neatly along the barrel 120, so that the initial winding of the cable 103 is completed. The first opening 122 and the second opening 142 are arranged at intervals in the circumferential direction of the barrel 120, so that the wire slot 121 and the wire hole 141 better cooperate with each other, so that the cable 103 can be accommodated in the barrel 120 without being detached from the laser gun 101 and the laser 102, and the cable winding device is more convenient for winding and unwinding the cable 103.

[0051] Referring to the accompanying drawings Figure 2 In an embodiment of the present application, the bottom end surface of the first limiting part 130 is provided with an annular sliding groove 131 which is coaxial with the barrel 120, and the opening of the annular sliding groove 131 faces and penetrates the bottom end surface of the first limiting part 130; the box body 10 is fixedly provided with a sliding rail 104 which is in sliding connection with the annular sliding groove 131, the guide part of the sliding rail 104 is in sliding connection with the annular sliding groove 131, and the fixed part of the sliding rail 104 protrudes outside the annular sliding groove 131 and protrudes from the bottom end surface of the first limiting part 130.

[0052] In another embodiment of the present application, the box body 10 is fixedly provided with an annular sliding groove 131, the opening of the annular sliding groove 131 faces the first limiting part 130, the bottom end surface of the first limiting part 130 is provided with a sliding rail 104 which is in sliding connection with the annular sliding groove 131, the sliding rail 104 is coaxial with the barrel 120, the guide part of the sliding rail 104 is in sliding connection with the annular sliding groove 131, and the fixed part of the sliding rail 104 protrudes outside the annular sliding groove 131. In this way, the sliding rail 104 and the annular sliding groove 131 are in sliding connection, which provides guidance and support for the rotation of the winding drum 110, and realizes flexible and free winding and unwinding of the cable 103 by the winding drum 110.

[0053] Referring to the accompanying drawings Figure 2 In an embodiment of the present application, the sliding rail 104 includes a plurality of sliding blocks which are arranged at intervals in the circumferential direction and are in sliding connection with the annular sliding groove 131.

[0054] In the specific embodiment of the present application, the annular sliding groove 131 is a T-shaped groove, and the annular sliding groove 131 is arranged at the bottom end surface of the first limiting part 130; the sliding block is a T-shaped sliding block, which is arranged at a uniform interval in the circumferential direction, the large end part of the T-shaped sliding block is slidably connected in the T-shaped groove, the small end part is located at the opening part of the T-shaped groove and extends to the outside of the T-shaped groove, and protrudes from the bottom end surface of the first limiting part 130; or, the annular sliding groove 131 is arranged in the box body 10, and the large end part of the T-shaped sliding block is slidably connected in the T-shaped groove, the small end part is located at the opening part of the T-shaped groove and extends to the outside of the T-shaped groove, and protrudes from the outside of the T-shaped groove. In this way, the T-shaped groove and the T-shaped sliding block that slide with each other make the winding drum 110 rotate, and the T-shaped sliding block will not come out of the T-shaped groove, so that the winding and unwinding of the cable 103 is more flexible and stable.

[0055] In another embodiment of the present application, the sliding rail 104 is an annular sliding rail 104, the annular sliding rail 104 includes at least two arc-shaped sliding rails 104, and the arc-shaped sliding rails 104 are combined to form a closed circular ring structure; the annular sliding groove 131 includes at least two arc-shaped sliding grooves, and the arc-shaped sliding grooves are combined to form a closed circular ring structure, wherein the arc-shaped sliding rail 104 is slidably connected to the arc-shaped sliding groove, and the two are in one-to-one correspondence.

[0056] Referring to FIG. 1, Figure 2 and Figure 3 In the embodiment of the present application, the winding assembly 100 further includes a handle 143, the handle 143 is arranged at the edge close to the second limiting part 140, and the handle 143 is used to drive the winding drum 110 to rotate relative to the box body 10, manually drive the winding drum 110 to wind and unwind the cable 103, so that the winding and unwinding of the cable 103 is more flexible.

[0057] Referring to FIG. 1, Figure 3 In the specific embodiment of the present application, the handle 143 is arranged at an interval from the first opening 122 and the second opening 142.

[0058] In the embodiment of the present application, the handle 143 is sleeved with a flexible sleeve 144, which can be a rubber sleeve or a silica gel sleeve, etc., to improve the comfort of operation.

[0059] Referring to FIG. 1, Figure 2 and Figure 6 In the embodiment of the present application, the circumference of the first limiting part 130 is provided with a gear ring 132, the rotating shaft 332 is fixedly connected with a first gear 333, the first gear 333 is engaged with a second gear 334, the second gear 334 is pivotally connected to the first cavity 330 and engaged with the gear ring 132. In this way, the transmission connection between the winding drum 110 and the limiting assembly 300 is realized.

[0060] Referring to FIG. 1, Figure 5In an embodiment of the present application, the first reset spring 241 is a compression spring, one end of the compression spring is fixed to the bottom wall of the second cavity 240, and the other end is fixed to the lower surface of the movable piece 221. Specifically, if the laser gun 101 is in a non-working state, the laser gun 101 abuts against the touch portion 222, under the gravity of the laser gun 101, the touch portion 222 drives the movable piece 221 and the blocking portion 223 to move along the height direction of the first cavity 230, at the same time, the compression spring is further compressed, and when the blocking portion 223 abuts against the bottom end surface of the first cavity 230, the first cavity 230 is divided into the A cavity and the B cavity, the first air hole 231 of the A cavity and the third air hole 341 of the second chamber 340 are both isolated from the second air hole of the B cavity, the piston 320 is stopped, the cam 331 is stopped, the rotating shaft 332 hinders the rotation of the winding drum 110, and the winding drum 110 stops winding and unwinding the wire; if the laser gun 101 is in a working state, the laser gun 101 does not abut against the touch portion 222, the compression spring releases the elasticity to push the movable piece 221 to drive the blocking portion 223 to move away from the bottom wall of the first cavity 230, the first air hole 231 of the A cavity and the third air hole 341 of the second chamber 340 are both communicated with the second air hole of the B cavity, the piston 320 reciprocates, the cam 331 rotates, the rotating shaft 332 rotates with the winding drum 110, and the winding drum 110 realizes winding and unwinding the wire.

[0061] In another embodiment of the present application, the first reset spring 241 is a tension spring, one end of the tension spring is fixed to the top wall of the second cavity 240, and the other end is fixed to the upper surface of the movable piece 221. Specifically, if the laser gun 101 is in a non-working state, the laser gun 101 abuts against the touch portion 222, under the gravity of the laser gun 101, the touch portion 222 drives the movable piece 221 and the blocking portion 223 to move along the height direction of the first cavity 230, at the same time, the tension spring is further stretched, and when the blocking portion 223 abuts against the bottom end surface of the first cavity 230, the first cavity 230 is divided into the A cavity and the B cavity, the first air hole 231 of the A cavity and the third air hole 341 of the second chamber 340 are both isolated from the second air hole of the B cavity, the piston 320 is stopped, the cam 331 is stopped, the rotating shaft 332 hinders the rotation of the winding drum 110, and the winding drum 110 stops winding and unwinding the wire; if the laser gun 101 is in a working state, the laser gun 101 does not abut against the touch portion 222, the tension spring releases the elasticity to push the movable piece 221 to drive the blocking portion 223 to move away from the bottom wall of the first cavity 230, the first air hole 231 of the A cavity and the third air hole 341 of the second chamber 340 are both communicated with the second air hole of the B cavity, the piston 320 reciprocates, the cam 331 rotates, the rotating shaft 332 rotates with the winding drum 110, and the winding drum 110 realizes winding and unwinding the wire.

[0062] In an embodiment of the present application, the first reset spring 241 has a plurality of and is arranged at intervals.

[0063] In one embodiment of the present application, the second reset spring 342 is a tension spring arranged in the first chamber 330, one end of the tension spring is fixed to the piston 320, and the other end is fixed to the inner wall of the first chamber 330. Specifically, during rotation of the cam 331, when the distal edge of the cam 331 rotates towards the piston 320, the distal edge of the cam 331 pushes the piston 320 to move away from the cam 331, and the tension spring is further stretched; when the distal edge of the cam 331 rotates away from the piston 320, the tension spring releases elastic potential to push the piston 320 to rotate towards the cam 331, and the piston 320 reciprocates in the chamber of the limiting box 310 under the joint action of the cam 331 and the tension spring.

[0064] Referring to the accompanying drawings Figure 6 In another embodiment of the present application, the second reset spring 342 is a compression spring arranged in the second chamber 340, one end of the compression spring is fixed to the piston 320, and the other end is fixed to the inner wall of the second chamber 340. Specifically, during rotation of the cam 331, when the distal edge of the cam 331 rotates towards the piston 320, the distal edge of the cam 331 pushes the piston 320 to move away from the cam 331, and the compression spring is further compressed; when the distal edge of the cam 331 rotates away from the piston 320, the compression spring releases elastic potential to push the piston 320 to rotate towards the cam 331, and the piston 320 reciprocates in the chamber of the limiting box 310 under the joint action of the cam 331 and the compression spring.

[0065] In the present application, the second reset spring 342 has multiple and is arranged at intervals.

[0066] Referring to the accompanying drawings Figure 4 In the present application, the clamping assembly 200 further comprises multiple clamping blocks 201 arranged in the clamping housing 210, and the multiple clamping blocks 201 are used to clamp the laser gun 101. Specifically, the multiple clamping blocks 201 are arranged in parallel along the length direction of the laser gun 101, and are arranged opposite to each other along the width direction of the laser gun 101, and the laser gun 101 is arranged between the clamping blocks 201.

[0067] Referring to the accompanying drawings Figure 4 In the present application, the part where the clamping block 201 and the laser gun 101 contact is provided with a flexible pad 202.

[0068] In the present application, the cable winding device comprises multiple universal wheels arranged at the bottom of the box body 10.

[0069] Although the present application has been disclosed with reference to the above embodiments, the application is not limited to the above embodiments. It will be apparent to those skilled in the art that various modifications and changes can be made thereto without departing from the spirit and scope of the application. The scope of the application should be limited only by the appended claims.

Claims

1. A cable winding device for turbine blade repair, characterized in that, include: Box (10); The winding assembly (100) includes a winding drum (110) rotatably disposed in the housing (10) for winding a cable (103) for connecting a laser gun (101) and a laser (102) located in the housing (10); The engaging assembly (200) includes an engaging housing (210) fixed to the housing (10) and a movable member (220) slidably connected to the engaging housing (210). The movable member (220) has an actuating portion (222) and a blocking portion (223) at its two ends, respectively. The actuating portion (222) and the blocking portion (223) are fixed relative to each other. The top end of the actuating portion (222) is located above the engaging housing (210) and can abut against the laser gun (101). The engaging housing (210) includes a first cavity (230) with an opening. The blocking portion... The part (223) is sealed and slidably connected to the opening, and can divide the first cavity (230) into cavity A and cavity B. Cavity A has a first vent (231), and cavity B has a second vent. The second vent is connected to the external atmospheric pressure. The locking housing (210) is provided with a first return spring (241). One end of the first return spring (241) is fixed to the locking housing (210), and the other end is fixed to the movable part (220). It always has a tendency to drive the blocking part (223) away from the bottom wall of the first cavity (230). as well as, The limiting assembly (300) includes a limiting box (310) fixed to the housing (10). The limiting box (310) has a chamber, in which a piston (320) is sealed and slidably connected, dividing the chamber into a first chamber (330) and a second chamber (340). A cam (331) is provided in the first chamber (330), and the cam (331) is fixed to a rotating shaft (332). The rotating shaft (332) is pivotally connected to the first chamber (330) and drives the transmission. The second chamber (340) is connected to the winding drum (110); a second return spring (342) is provided in the chamber, one end of the second return spring (342) is fixed to the cavity wall of the chamber, and the other end is fixed to the piston (320), and always has the tendency to drive the piston (320) toward the cam (331); the second chamber (340) has a third air hole (341), and an air pipe (203) is connected between the third air hole (341) and the first air hole (231).

2. The cable winding device according to claim 1, characterized in that, The engaging housing (210) has a partition that divides the engaging housing (210) into a first cavity (230) and a second cavity (240). The second cavity (240) is located above the first cavity (230). The movable member (220) includes a movable piece (221) disposed in the second cavity (240). The actuating part (222) has a columnar structure that extends along the upper surface of the movable piece (221) and protrudes from the upper surface of the movable piece (221). The actuating part (222) is slidably connected to the engaging housing (210), and the top end of the actuating part (222) protrudes from the engaging housing (210). The upper end face of the 10) can abut against the laser gun (101); the blocking part (223) is a plate-shaped structure, the blocking part (223) extends along the lower surface of the movable piece (221) and protrudes from the lower surface of the movable piece (221) and extends out of the lower surface of the second cavity (240) and slides in connection with the opening of the first cavity (230); the first return spring (241) is provided in the second cavity (240), one end of the first return spring (241) is connected to the cavity wall of the second cavity (240), the other end is connected to the movable piece (221), and always has the tendency to drive the blocking part (223) away from the bottom wall of the first cavity (230).

3. The cable winding device according to claim 1 or 2, characterized in that, The winding drum (110) includes a drum body (120) and a first limiting part (130) and a second limiting part (140) respectively fixed at both ends of the drum body (120). The first limiting part (130) and the second limiting part (140) both extend radially outward and protrude from the outer peripheral wall of the drum body (120). The first limiting part (130) is pivotally connected to the housing (10). A groove (121) is provided at the central axis of the cylinder body (120), and the groove (121) passes through the first limiting part (130) and the second limiting part (140) along the axial direction; The second limiting part (140) is provided with a wire hole (141), the axis of the wire hole (141) is not collinear with the axis of the wire groove (121), and the wire hole (141) passes through the second limiting part (140) axially. Wherein, the axial direction is the axial direction of the cylinder body (120).

4. The cable winding device according to claim 3, characterized in that, The sidewall of the groove (121) has a first opening (122), which extends radially outward and axially through the cylinder (120), the first limiting part (130), and the second limiting part (140). The sidewall of the wire hole (141) has a second opening (142), which extends radially outward and axially through the corresponding second limiting part (140). Wherein, the radial direction is the radial direction of the cylinder body (120), and the first opening (122) and the second opening (142) are spaced apart along the circumference of the cylinder body (120).

5. The cable winding device according to claim 3, characterized in that, The bottom end face of the first limiting part (130) is provided with an annular groove (131), the annular groove (131) is coaxial with the cylinder body (120), and the opening of the annular groove (131) faces and penetrates the bottom end face of the first limiting part (130); the box body (10) is fixedly provided with a slide rail (104) that is slidably connected to the annular groove (131), the guide part of the slide rail (104) is adapted to and slidably connected to the annular groove (131), and the fixing part of the slide rail (104) extends to the outside of the annular groove (131) and protrudes from the bottom end face of the first limiting part (130); or, The housing (10) is fixedly provided with the annular slide groove (131), the opening of the annular slide groove (131) faces the first limiting part (130), the bottom end surface of the first limiting part (130) is provided with a slide rail (104) that is slidably connected to the annular slide groove (131), the slide rail (104) is coaxial with the cylinder body (120), the guide part of the slide rail (104) is adapted to and slidably connected to the annular slide groove (131), and the fixing part of the slide rail (104) extends to the outside of the annular slide groove (131).

6. The cable winding device according to claim 5, characterized in that, The slide rail (104) includes a plurality of sliders, which are circumferentially spaced relative to the axial direction and slidably connected to the annular groove (131); or, The slide rail (104) is an annular slide rail (104), which includes at least two arc-shaped slide rails (104) and the arc-shaped slide rails (104) are combined to form a closed annular structure; the annular groove (131) includes at least two arc-shaped grooves and the arc-shaped grooves are combined to form a closed annular structure, wherein the arc-shaped slide rail (104) is slidably connected to the arc-shaped groove, and the two correspond one-to-one.

7. The cable winding device according to claim 3, characterized in that, The winding assembly (100) also includes a handle (143) located near the edge of the second limiting portion (140) and used to drive the winding drum (110) to rotate relative to the housing (10).

8. The cable winding device according to claim 3, characterized in that, The first limiting part (130) has a toothed ring (132) around its circumference. The rotating shaft (332) is fixedly connected to a first gear (333). The first gear (333) meshes with a second gear (334). The second gear (334) is pivotally connected to the first chamber (330) and meshes with the toothed ring (132).

9. The cable winding device according to claim 2, characterized in that, The first return spring (241) is a compression spring, one end of which is fixed to the bottom wall of the second cavity (240), and the other end is fixed to the lower surface of the movable piece (221); or the first return spring (241) is a tension spring, one end of which is fixed to the top wall of the second cavity (240), and the other end is fixed to the upper surface of the movable piece (221); and / or, The second return spring (342) is a tension spring, located in the first chamber (330), with one end of the tension spring fixed to the piston (320) and the other end fixed to the inner wall of the first chamber (330); or, the second return spring (342) is a compression spring, located in the second chamber (340), with one end of the compression spring fixed to the piston (320) and the other end fixed to the inner wall of the second chamber (340).

10. The cable winding device according to claim 1, characterized in that, The engaging assembly (200) further includes a plurality of clamping blocks (201) disposed in the engaging housing (210), the plurality of clamping blocks (201) being used to clamp the laser gun (101).

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