Dismounting tool

Abstract

The utility model relates to the field of dismounting tools for broken wires of a rectangular tube of a generator on a fan, and provides a dismounting tool which is used for dismounting the broken wires at the position of the rectangular tube in a wind driven generator and comprises a positioning fixing piece, a positioning piece and a mounting seat, the positioning fixing piece is provided with a through positioning hole, and the positioning piece is detachably connected to the positioning hole of the positioning fixing piece. The positioning fixing piece is provided with a positioning base part and a positioning part, the positioning part is arranged on one side of the positioning base part, the mounting seat is arranged on the positioning fixing piece and located on the other side of the positioning base part, the mounting seat is provided with a tool mounting part, and the positioning piece can penetrate through the positioning hole to be connected to a rectangular pipe fastening hole with the rectangular pipe. And the tool is mounted at the tool mounting part so as to carry out broken wire dismounting operation. The dismantling tool is positioned through the rectangular pipe fastening holes of the rectangular pipe, so that the dismantling tool is simple in structure and accurate and reliable in positioning.

Description

Technical Field

[0001] The utility model relates to the field of tooling for removing broken wires from rectangular tubes of generators on fans. Background Art

[0002] Wind turbine generator set, referred to as wind turbine, the generator of wind turbine can be called wind turbine, such as Figure 1 、 Figure 2 The stator in the wind turbine includes a stator frame and an iron core 5000'. The stator frame includes a rectangular tube 3000' and a connecting plate 2000'. A dovetail rib 4000' is fixed to the iron core 5000'. A waist-shaped groove 3100' is provided on the end of the rectangular tube 3000' facing the connecting plate 2000'. A mating surface 3200' is machined on the inner wall surface of the end of the rectangular tube 3000' near the dovetail rib 4000'. Rectangular tube fastening holes 3300' are machined on the mating surface 3200'. Three rectangular tube fastening holes 3300' are correspondingly arranged in one waist-shaped groove 3100'. Fastening bolts 6000' are fixedly connected to the rectangular tube fastening holes 3300' and the dovetail rib fastening holes 4100' on the dovetail rib 4000' to fix the rectangular tube 3000' to the iron core 5000'. If the fastening bolt 6000' breaks, a broken wire will be formed. Since the insulating paint and thread locking agent are solidified at the thread of the broken wire, ordinary methods of removing the broken wire cannot be used (for example, just making a small hole at the broken wire and then using a screwing tool to knock it in the opposite direction to remove the broken wire). Drilling, reaming, and tapping are the only methods that can be used. The internal space of the rectangular tube 3000' is narrow, and the distance d between the end of the rectangular tube 3000' away from the dovetail rib 4000' and the connecting plate 2000' is small, usually around 100 mm, making it difficult to install tools for removing broken wires at the rectangular tube 3000'. In addition, the distribution of the broken wires also appears at various angles of the circumference, and the location space is narrow, making it impossible for ordinary tools to locate them. It is also easy to drill off-center during drilling, damaging the threads. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a dismantling tool in order to overcome the defect in the prior art that broken wires at the rectangular tube of a wind turbine generator are difficult to remove.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] A dismantling tool is used to remove broken wires from a rectangular tube in a wind turbine. The dismantling tool comprises:

[0006] A positioning fixture having a positioning hole extending through the positioning fixture along a thickness direction of the positioning fixture, wherein the positioning fixture comprises a positioning base and a positioning portion, wherein the positioning portion is provided on one side of the positioning base along the thickness direction of the positioning fixture;

[0007] a positioning member, detachably connected to the positioning hole of the positioning fixing member;

[0008] The mounting seat is arranged on the positioning fixing piece, and the mounting seat has a tool mounting portion, which is used to install a tool for removing broken wires. The mounting seat is located on the other side of the positioning base along the thickness direction of the positioning fixing piece.

[0009] In this technical solution, a positioning piece is inserted through a positioning hole and then connected to a rectangular tube at a rectangular tube fastening hole, thereby securing the positioning piece to the rectangular tube. After the tool is mounted on the tool mounting portion of the mounting base, the tool can be used to drill, expand, and tap the dovetail rib fastening hole corresponding to the other rectangular tube fastening hole, thereby removing broken wires. In addition, the positioning piece is designed to be detachably connected to the positioning hole, making it easy to remove the positioning piece from the rectangular tube to change workstations.

[0010] The positioning portion protrudes from the positioning base along the thickness direction of the positioning fixture. The length of the positioning portion can be set to be less than or equal to the length of the waist-shaped groove, and the width can be less than or equal to the width of the waist-shaped groove, so that the positioning portion can extend into the waist-shaped groove of the rectangular tube and abut against the mating surface on the rectangular tube, thereby improving the positioning accuracy of the positioning fixture relative to the rectangular tube.

[0011] Preferably, the number of the positioning holes is at least two, and the mounting seat is configured so that when a tool is used to remove a broken wire, the tool can be inserted into at least one of the positioning holes except the one used to install the positioning member.

[0012] In this technical solution, the spacing between two adjacent positioning holes can be set to be the same as the spacing between two adjacent rectangular tube fastening holes. After the positioning piece is passed through a positioning hole, it is connected to a rectangular tube fastening hole to fix the positioning fixing piece on the rectangular tube; after the tool is installed on the tool mounting part on the mounting seat, the tool can be extended into another positioning hole to drill, expand, and tap the broken wire at the rectangular tube fastening hole and dovetail rib fastening hole corresponding to the other positioning hole, thereby removing the broken wire and improving the accuracy of the tool positioning relative to the broken wire.

[0013] Preferably, the positioning fixing member is provided with a positioning mounting portion, and the mounting seat is detachably mounted on the positioning mounting portion.

[0014] In this technical solution, when there are two broken wires at the same waist-shaped groove, different broken wires can be removed by replacing the position of the mounting seat and the positioning member relative to the positioning fixing member, without having to reposition the positioning fixing member relative to the rectangular tube.

[0015] Preferably, the dismantling tool further includes a bushing with at least one inner diameter size, and the bushing is detachably arranged at the positioning hole.

[0016] In this technical solution, a removable bushing is provided, which reduces wear of the locating fixture at one of the locating holes when the tool is inserted into the hole. When bushings with multiple inner diameters are provided, the tool can be replaced to achieve multiple drilling diameters when removing a broken wire. Smaller holes with smaller diameters can be drilled first, and then expanded. This improves the utilization of the locating fixture and increases the efficiency of inserting the tool into the locating hole for drilling, expanding, and tapping.

[0017] Preferably, there are three positioning holes, which are evenly spaced along the length direction of the positioning fixture. One positioning hole is arranged at the positioning portion along the length direction of the positioning fixture, and the other two positioning holes are arranged outside the positioning portion along the length direction of the positioning fixture and are symmetrical about the positioning portion.

[0018] In this technical solution, there are three positioning holes. On the one hand, they can correspond one-to-one with the three rectangular tube fastening holes at a single waist-shaped groove on the rectangular tube; on the other hand, two positioning holes can be used to cooperate with two positioning parts, and the other positioning hole can be used for tools to insert and remove broken wires, which can improve the positioning accuracy and force stability of the positioning fixing parts.

[0019] Preferably, the positioning portion has a penetrating positioning avoidance hole along the thickness direction of the positioning fixture, and the projection of at least one of the positioning holes along the thickness direction of the positioning fixture is located within the projection of the positioning avoidance hole along the thickness direction of the positioning fixture.

[0020] In this technical solution, at least one positioning hole is opposite to the positioning avoidance hole, and the positioning hole is covered by the positioning avoidance hole, which can prevent the positioning part from covering the positioning hole, so that the positioning part or tool can pass through the positioning hole and the positioning avoidance hole and act on the rectangular tube fastening hole and the dovetail rib fastening hole.

[0021] Preferably, the tool mounting portion has a through hole coaxial with the positioning hole for the tool to extend into.

[0022] In this technical solution, the tool mounting portion has a through hole that faces the positioning hole along the thickness direction. The tool is inserted into the tool mounting portion and positioned, allowing the tool to pass through the positioning hole. This simple and reliable tool positioning method is achieved. The through hole of the tool mounting portion and the positioning hole are coaxial, providing high-precision tool positioning.

[0023] Preferably, the positioning hole is provided on the positioning base.

[0024] In the present technical solution, compared with setting a positioning hole passing through the positioning base and the positioning portion, the positioning hole is set on the positioning base, the positioning hole has a smaller depth and is convenient to process.

[0025] Preferably, the positioning portion has a first positioning plane at one end away from the mounting seat, and an extending direction of the first positioning plane is perpendicular to a thickness direction of the positioning fixing member.

[0026] In this technical solution, the mating surface of the rectangular tube is machined with high precision to facilitate the opening of the rectangular tube fastening hole on the mating surface. The first positioning plane is provided to abut the mating surface, thereby achieving high positioning accuracy of the positioning fixture on the rectangular tube. The positioning portion and the rectangular tube are positioned by abutting the two planes, and the force is applied stably.

[0027] Preferably, the positioning portion has second positioning planes at both ends along the width direction of the positioning fixture, and the extending direction of the second positioning planes is parallel to the thickness direction of the positioning fixture.

[0028] In this technical solution, the width of the waist-shaped groove can be set to be the same as the width of the positioning part, and the positioning piece can be supported and positioned by the inner surfaces of the two width directions of the waist-shaped groove to improve the positioning accuracy.

[0029] Preferably, the length of the positioning base is greater than the length of the positioning portion, and the width of the positioning base is greater than the width of the positioning portion.

[0030] In this technical solution, the length of the positioning base can be set to be greater than the corresponding length of the waist-shaped groove on the rectangular tube, and the width of the positioning base can be set to be greater than the width of the waist-shaped groove. When the positioning part is extended into the waist-shaped groove of the rectangular tube, the upper surface of the rectangular tube can support and limit the lower surface of the positioning base at both ends in the length direction and both ends in the width direction, thereby improving the stability of the positioning fixing part fixed on the rectangular tube.

[0031] Preferably, the positioning portion is arranged at a middle portion of the positioning base along a length direction of the positioning fixture, and is arranged at a middle portion of the positioning base along a width direction of the positioning fixture.

[0032] In the present technical solution, such an arrangement can ensure that the positioning fixture is subjected to a stable force after being fixed on the rectangular tube.

[0033] Preferably, the dismantling tool also includes a guide member, which is fixed on the positioning fixing member and extends along the thickness direction of the positioning fixing member. The mounting seat also has a guide matching portion, which is arranged on the guide member. The mounting seat is slidably arranged along the guide member relative to the positioning fixing member.

[0034] In this technical solution, the guide member extends along the thickness direction of the positioning fixing member, and the mounting seat slides along the guide member. The guide member can play a role in motion guidance and centering for the tool, so that the tool remains concentric with the positioning hole into which it is inserted, making the positioning more accurate when removing the broken wire, avoiding the eccentricity of the tool relative to the broken wire position during the removal process, resulting in damage to the screw threads of the rectangular tube fastening hole and / or the dovetail reinforcement fastening hole, thereby improving the success rate of removing the broken wire.

[0035] Preferably, the guide fitting portion and the guide member are slidably fitted.

[0036] Preferably, the guide members are arranged in pairs, the guide matching portions are arranged in pairs and correspond one-to-one to the guide members, and the tool mounting portion is arranged between the two paired guide matching portions.

[0037] In this technical solution, such an arrangement can improve the reliability of the guide and improve the stability of the force applied to the tools and disassembly and assembly equipment.

[0038] Preferably, the dismantling tool further comprises an elastic member, which is sleeved on the guide member and compressed between the positioning fixing member and the mounting seat, and the elastic member abuts against the mounting seat along one end of the positioning fixing member toward the mounting seat in the thickness direction of the positioning fixing member.

[0039] In this technical solution, the compressed elastic member resists the pressure transmitted from the external tool, stores deformation energy, and makes the tool and the mounting seat slide along the guide member at a uniform speed, avoiding deviation caused by excessive pressure.

[0040] Preferably, the guide member is provided with two guide limit portions, which are respectively arranged at two ends of the sliding path of the mounting seat.

[0041] In this technical solution, a guide limiter is provided to limit the sliding stroke of the mounting seat along the guide member. One guide limiter prevents the tool from moving too far and damaging the iron core below the dovetail rib, and the other guide limiter prevents the mounting seat from separating from the guide member.

[0042] Preferably, the guide member is provided with a first extension section, a second extension section, a third extension section, and a fourth extension section in sequence along the thickness direction of the positioning and fixing member;

[0043] The first extension section is fixedly connected to the positioning fixing member;

[0044] The outer diameter of the third extension section is smaller than the outer diameter of the second extension section, the two guide limit portions are respectively provided at both ends of the third extension section in the thickness direction of the positioning fixing member, and the guide member is slidably engaged with the guide engagement portion through the third extension section;

[0045] The elastic member is sleeved on the second extension section and the third extension section of the guide member.

[0046] Preferably, the dismantling tool also includes a first mounting fixture and a second mounting fixture arranged in pairs, the first mounting fixture and the positioning fixture are fixedly connected, the two second mounting fixtures in pairs are respectively fixed at both ends of the first mounting fixture along the width direction of the positioning fixture, and the guide member is fixedly connected to the second mounting fixture.

[0047] Preferably, a positioning mounting portion is provided on the positioning fixture next to part of the positioning hole, the first mounting fixture and the positioning fixture are detachably connected at the positioning mounting portion, and the first mounting fixture is provided with a tool avoidance hole that penetrates the first mounting fixture along the thickness direction of the positioning fixture, the inner diameter of the tool avoidance hole is larger than the inner diameter of the positioning hole, and is coaxial with the positioning hole for the tool to be inserted.

[0048] The positive progress effect of this utility model is:

[0049] The positioning piece can be passed through a positioning hole and connected to a rectangular tube at a rectangular tube fastening hole to secure the positioning piece to the rectangular tube. After the tool is mounted on the tool mounting portion of the mounting base, the tool can be used to drill, expand, and tap the dovetail rib fastening hole corresponding to the other rectangular tube fastening hole to remove the broken wire. Using the existing rectangular tube fastening holes on the rectangular tube to position the removal tool ensures accurate and reliable positioning while simplifying the structure of the removal tool.

[0050] The positioning part protrudes from the positioning base along the thickness direction of the positioning fixture. The length of the positioning part can be set to be less than the length of the waist-shaped groove, and the width can be less than or equal to the width of the waist-shaped groove, so that the positioning part can extend into the waist-shaped groove of the rectangular tube and abut against the mating surface on the rectangular tube, thereby improving the positioning accuracy of the positioning fixing relative to the rectangular tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 A schematic diagram of a partial structure of an existing wind turbine;

[0052] Figure 2 A schematic diagram of a rectangular tube of an existing wind turbine;

[0053] Figure 3 This is a three-dimensional diagram of a dismantling tool installed on a rectangular tube according to an embodiment of the present invention;

[0054] Figure 4 A three-dimensional diagram of a dismantling tool installed on a rectangular tube and a dovetail rib according to an embodiment of the present invention;

[0055] Figure 5 for Figure 4 Middle partial enlarged view;

[0056] Figure 6 A partial perspective view of a dismantling tool according to an embodiment of the present invention installed on a rectangular tube;

[0057] Figure 7 This is a cross-sectional view of a dismantling tool installed on a rectangular tube and a dovetail rib according to an embodiment of the present invention;

[0058] Figure 8 A three-dimensional diagram of a positioning fixture according to an embodiment of the present invention;

[0059] Figure 9 A three-dimensional diagram of a guide member according to an embodiment of the present invention;

[0060] Figure 10 This is a three-dimensional diagram of a partial structure of a mounting base according to an embodiment of the present invention.

[0061] Description of reference numerals:

[0062] Figure 1-Figure 2 Corresponding tags:

[0063] Connecting plate 2000';

[0064] Rectangular tube 3000', waist-shaped groove 3100', matching surface 3200', rectangular tube fastening hole 3300';

[0065] Dovetail reinforcement 4000', dovetail reinforcement fastening hole 4100';

[0066] Iron core 5000';

[0067] Fastening bolts 6000';

[0068] Figure 3-10 Corresponding tags:

[0069] Dismantling tooling 1000;

[0070] Positioning fixture 100, positioning base 110, positioning portion 120, first positioning plane 121, second positioning plane 122, positioning hole 130, positioning mounting portion 140;

[0071] Positioning member 200;

[0072] First mounting fixture 300, tool avoidance hole 310;

[0073] A second mounting fixture 400;

[0074] The guide member 500, the first extension section 510, the second extension section 520, the third extension section 530, the fourth extension section 540, the first guide stopper 551, and the second guide stopper 552;

[0075] elastic member 600;

[0076] Mounting seat 700, tool mounting portion 710, guide fitting portion 720, reinforcement portion 730, tool mounting hole 740;

[0077] Bushing 800;

[0078] The length direction L, width direction W, and thickness direction T of the positioning fixture;

[0079] Rectangular tube 3000, waist-shaped groove 3100, mating surface 3200, rectangular tube fastening hole 3300;

[0080] Dovetail reinforcement 4000, dovetail reinforcement fastening hole 4100;

[0081] Broken wire 6000. DETAILED DESCRIPTION

[0082] The present invention will be described more clearly and completely with reference to the following preferred embodiments and the accompanying drawings.

[0083] This embodiment provides a dismantling tool for removing broken wires from a rectangular tube in a wind turbine generator. The wind turbine generator will be referred to as a generator hereinafter.

[0084] Figure 3-10 This is a schematic diagram provided for this embodiment, wherein Figure 3-Figure 7 This is the overall schematic diagram of the removal tooling and generator coordination. Figures 8-10 This is a schematic diagram of the parts in the dismantling tooling.

[0085] like Figure 3-Figure 8 , demolition tool 1000 includes:

[0086] The positioning fixture 100 has a positioning hole 130 that penetrates the positioning fixture 100 along a thickness direction T of the positioning fixture 100. The positioning fixture 100 has a positioning base 110 and a positioning portion 120. The positioning portion 120 is located on one side of the positioning base 110 along the T direction (i.e., along the thickness direction of the fixture 100).

[0087] The positioning member 200 is detachably connected to the positioning hole 130 of the positioning fixing member 100;

[0088] The mounting seat 700 is provided on the positioning fixture 100 and is located on the other side of the positioning base 110 along the T direction. The mounting seat 700 has a tool mounting portion 710 for mounting a tool for removing the broken wire 6000 .

[0089] When installing the dismantling tool 1000 on the generator, the positioning member 200 is passed through a positioning hole 130 and connected to a rectangular tube fastening hole 3300 on the rectangular tube 3000, thereby fixing the positioning fixture 100 on the rectangular tube 3000. The tool is installed on the tool mounting portion 710 on the mounting base 700. The tool can perform operations such as drilling, reaming, and tapping at the dovetail rib fastening hole 4100 corresponding to another rectangular tube fastening hole 3300, thereby removing the broken wire 6000. After the dismantling tool 1000 is installed on the rectangular tube 3000, the coaxial positioning hole 130, the rectangular tube fastening hole 3300, and the dovetail rib fastening hole 4100 can be understood as corresponding to each other. In addition, the positioning member 200 is used to be detachably connected to the positioning hole 130, making it easy to remove the positioning fixture 100 from the rectangular tube 3000 to change workstations. In this embodiment, the positioning hole 130 is specifically a threaded hole, and the positioning member 200 is specifically a bolt.

[0090] The length of the positioning portion 120 can be set to be less than or equal to the length of the waist-shaped groove 3100, and the width can be set to be less than or equal to the width of the waist-shaped groove 3100. This allows the positioning portion 120 to extend into the waist-shaped groove 3100 of the rectangular tube 3000 and abut against the mating surface 3200 on the rectangular tube 3000, thereby improving the positioning accuracy of the positioning fixture 100 relative to the rectangular tube 3000. In this embodiment, the length of the positioning portion 120 is less than the length of the waist-shaped groove 3100, and the width is equal to the width of the waist-shaped groove 3100.

[0091] It can be understood that after the positioning fixing part 100 is fixed on the rectangular tube 3000, the length direction L, width direction W, and thickness direction T of the positioning fixing part 100 are respectively parallel to the extension direction, width direction, and thickness direction of the rectangular tube 3000. The length mentioned in the present invention refers to the dimension along the L direction, and the width refers to the dimension along the W direction.

[0092] In a preferred embodiment, if Figure 8There are at least two positioning holes 130, at least one positioning hole 130 is used to install the positioning piece 200, and the mounting seat 700 is configured as follows: when the tool is installed at the tool mounting portion 710 to remove the broken wire, at least one positioning hole in the other positioning holes 130 except for the positioning piece 200 is used for the tool to be inserted. When the tool is inserted into the positioning hole 130, the positioning hole 130 can position and guide the tool, thereby improving the accuracy of the tool in removing the broken wire 6000. Specifically, in this embodiment, there are three positioning holes 130, which are evenly spaced along the L direction of the positioning fixture 100. The spacing between two adjacent positioning holes 130 is the same as the spacing between two adjacent rectangular tube fastening holes 3300. First, they can correspond one-to-one with the three rectangular tube fastening holes 3300 at the single waist-shaped groove 3100 on the rectangular tube 3000. Second, two positioning holes 130 can be used to cooperate with the two positioning members 200 to improve the force stability of the positioning fixture 100, and the other positioning hole 130 is used to allow a tool to extend and remove the broken wire 6000, thereby improving the positioning accuracy of the tool operation. The three positioning holes 130, one positioning hole 130 is set along the L direction on the positioning portion 120, and the other two positioning holes 130 are set outside the positioning portion 120 along the L direction. They are symmetrical about the positioning portion 120, which can improve the force stability of the positioning fixture 100. In other embodiments, the length or width of the positioning fixture 100 can be set to be smaller than the length or width of the waist-shaped groove, and the tool is inserted into the rectangular tube 3000 from the outside of the positioning fixture 100 through the uncovered part of the waist-shaped groove 3100 to remove the broken wire 6000.

[0093] In a preferred embodiment, the three positioning holes 130 can be set to the same size to facilitate processing; or, the positioning hole 130 used to install the positioning member 200 can be set to have a larger inner diameter to facilitate the installation of the positioning member 200, and the other two positioning holes 130 can have a smaller inner diameter to avoid damaging the rectangular tube fastening hole 3300 and the dovetail rib fastening hole 4100 due to excessive drilling diameter when the tool is used to remove the broken wire. Furthermore, the positioning hole 130 located in the middle can be selected for installing the positioning member 200.

[0094] In a preferred embodiment, the tool mounting portion 710 has a through hole, and the through hole in the tool mounting portion 710 is coaxial with the positioning hole 130 for inserting the tool. The tool is positioned by passing through the through hole in the tool mounting portion 710, which provides a simple and reliable positioning method. Furthermore, the through hole in the tool mounting portion 710 and the positioning hole 130 are coaxial, so that the tool mounting portion 710 is aligned with the positioning hole 130 along the T direction, thereby accurately positioning the tool. The tool mounting portion 710 is simplified in the accompanying drawings, and the through hole in the tool mounting portion 710 is not shown.

[0095] In a preferred embodiment, if Figure 10A boss-shaped reinforcement portion 730 is provided on the mounting seat 700, and a tool mounting hole 740 is formed at the reinforcement portion 730, thereby improving the reliability of the tool mounting portion 710 and the mounting tool.

[0096] In a preferred embodiment, if Figure 6 The dismantling tool 1000 also includes a bushing 800, which is detachably mounted at the positioning hole 130. The tool passes through the bushing 800 at the positioning hole 130 to reduce the wear of the positioning fixture 100 at the positioning hole 130. In this embodiment, bushings 800 of various inner diameters are provided. When removing broken wires, the bushings 800 can be replaced to achieve drilling of various diameters. First, a small hole with a smaller diameter is drilled, and then the hole is expanded. This improves the utilization rate of the positioning fixture 100 and the efficiency of the tool inserting into the positioning hole 130 for drilling, expanding, and tapping. In other embodiments, multiple or multiple groups of bushings 800 can be provided, with one or a group of bushings 800 corresponding to one positioning hole.

[0097] In a preferred embodiment, a positioning avoidance hole (not shown) can be provided on the positioning portion 120. The positioning avoidance hole penetrates the positioning portion 120 along the T direction, and at least one positioning hole 130 is provided so that its projection along the T direction is located within the projection of the positioning avoidance hole along the T direction. This allows the at least one positioning hole 130 to be directly opposite the positioning avoidance hole. This prevents the positioning portion 120 from covering the positioning hole 130, allowing the positioning member 200 or a tool to pass through the positioning hole 130 and the positioning avoidance hole to act on the rectangular tube fastening hole 3300 and the dovetail rib fastening hole 4100. In addition, when the tool is inserted into the positioning avoidance hole to perform an operation, the positioning portion 120 surrounds the tool, providing multiple supports and improving the smoothness of the removal of the broken wire 6000.

[0098] In a preferred embodiment, if Figure 8 The positioning hole 130 is set on the positioning base 110. Compared with setting the positioning hole 130 through the positioning base 110 and the positioning portion 120, the positioning hole 130 is set on the positioning base 110. The depth of the positioning hole 130 along the T direction is smaller and the processing is convenient.

[0099] In a preferred embodiment, if Figure 8 The end of the positioning portion 120 away from the mounting seat 700 has a first positioning flat surface 121. The direction of the first positioning flat surface 121 extending perpendicular to the T direction. The mating surface 3200 of the rectangular tube 3000 is machined with high precision to facilitate the opening of the rectangular tube fastening hole 3300 on the mating surface 3200. The first positioning flat surface 121 abuts the mating surface 3200, ensuring high positioning accuracy of the positioning fixture 100 on the rectangular tube 3000. The positioning portion 120 and the rectangular tube 3000 are positioned by abutting the two flat surfaces, providing a stable force.

[0100] In a preferred embodiment, if Figure 8 The positioning portion 120 has a second positioning plane 122 at both ends along the W direction of the positioning fixing member 100. The extension direction of the second positioning plane 122 is parallel to the T direction. The width of the waist-shaped groove 3100 is set to be the same as the width of the positioning portion 120. The positioning member 200 is supported and positioned by the two inner surfaces of the waist-shaped groove 3100 in the W direction, thereby improving the positioning accuracy.

[0101] In a preferred embodiment, the width of the positioning base 110 is greater than the width of the positioning portion 120 and greater than the width of the waist-shaped groove 3100. When the positioning portion 120 is inserted into the waist-shaped groove 3100 of the rectangular tube 3000, the upper surface of the rectangular tube 3000 can support and limit the lower surface of the positioning base 110 at both ends in the W direction, thereby improving the stability of the positioning fixture 100 fixed to the rectangular tube 3000. In other embodiments, the width and / or length of the positioning base 110 can be set to be greater than the corresponding length and width of the positioning portion 120 and the waist-shaped groove 3100.

[0102] In a preferred embodiment, if Figure 8 The positioning portion 120 is arranged in the middle of the positioning base 110 along the L direction and in the middle of the positioning base 110 along the W direction, so that after the positioning fixture 100 is fixed on the rectangular tube 3000, the force is stable.

[0103] In a preferred embodiment, if Figure 6 、 Figure 9 The removal tool 1000 also includes a guide member 500, which is fixed on the positioning fixing member 100 and extends along the T direction. The mounting seat 700 also has a guide matching portion 720 connected to the tool mounting portion 710. The guide matching portion 720 and the guide member 500 are slidably matched. The guide member 500 can play a role in guiding and centering the tool, thereby avoiding the eccentricity of the tool relative to the broken wire 6000 during the removal process, resulting in damage to the screw threads of the rectangular tube fastening hole 3300 and / or the dovetail rib fastening hole 4100, thereby improving the success rate of removing the broken wire 6000.

[0104] In a preferred embodiment, if Figure 6 The guide members 500 are arranged in pairs, and the guide matching parts 720 are also arranged in pairs, and one guide matching part 720 corresponds to one guide member 500, and the tool mounting part 710 is arranged between the two paired guide matching parts 720, thereby improving the reliability of the guide and improving the stability of the force on the tools and disassembly and assembly equipment.

[0105] In a preferred embodiment, if Figure 6The dismantling tool 1000 also includes an elastic member 600. The elastic member 600 is sleeved on the guide member 500 and is compressed between the positioning fixing member 100 and the mounting seat 700. The elastic member 600 abuts against the mounting seat 700 along the T direction toward one end of the mounting seat 700. The compressed elastic member 600 resists the pressure transmitted from the external tool, stores deformation energy, and makes the tool and the mounting seat 700 slide uniformly along the guide member 500 to avoid displacement caused by excessive pressure.

[0106] In a preferred embodiment, if Figure 6 Two guide limit parts are provided on the guide member 500, namely the first guide limit part 551 and the second guide limit part 552. The guide limit parts are provided to limit the sliding stroke of the mounting seat 700 along the guide member 500. The first guide limit part 551 prevents the tool from moving too far toward the dovetail rib 4000 and damaging the iron core below the dovetail rib 4000. The second guide limit part 552 prevents the mounting seat 700 from moving away from the dovetail rib 4000 and separating from the guide member 500.

[0107] Specifically, such as Figure 6 、 Figure 9 The guide member 500 is provided with a first extension section 510, a second extension section 520, a third extension section 530, and a fourth extension section 540 in sequence along the T direction;

[0108] The first extension section 510 is fixed on the positioning fixture 100;

[0109] The outer diameter of the third extension section 530 is smaller than that of the second extension section 520, and the outer diameter represents the outer contour dimension perpendicular to the T-direction. Two guide stoppers are provided at both ends of the third extension section 530 along the T-direction. The guide member 500 slidably engages with the guide engagement portion 720 via the third extension section 530. In this embodiment, an external thread is provided on the fourth extension section 540 to engage with a nut. The nut is tightened and abutted against one end of the third extension section 530 along the T-direction facing the fourth extension section 540, forming a second guide stopper 552 to prevent the mounting seat 700 from separating from the guide member 500.

[0110] The elastic member 600 is sleeved on the second extension section 520 and the third extension section 530 of the guide member 500 .

[0111] In other embodiments, the guide member 500 may be configured to be retractable along the T direction, specifically by using a telescopic rod or a hydraulic rod. After the mounting seat 700 is mounted on the guide member 500, the mounting seat 700 is pressed toward the positioning fixture 100, so that the guide member 500 contracts toward the positioning fixture 100, thereby enabling the mounting seat 700 to slide relative to the positioning fixture 100. For example, Figure 9When the guide member 500 is shown, the third extension section 530 can be configured to extend relative to the second extension section 520. Furthermore, when an elastic member is provided, the elastic member can be sleeved outside the guide member 500, compressed between the mounting seat 700 and the positioning and fixing member 100, and abutted against the mounting seat 700; or, a hole can be provided in the guide member 500, and the elastic member 600 can be disposed in the hole of the guide member 500. When one end of the guide member 500 toward the mounting seat 700 is contracted toward the positioning and fixing member 100, the elastic member 600 is compressed.

[0112] In a preferred embodiment, if Figure 6 The dismantling tool 1000 further includes a first mounting fixture 300 and two second mounting fixtures 400. The two second mounting fixtures 400 are respectively fixed to the ends of the first mounting fixture 300 along the W direction. The first mounting fixture 300 is fixedly connected to the positioning fixture 100. The second mounting fixture 400 is fixed to the first mounting fixture 300 by pins and screws. The first extension section 510 of the guide member 500 is inserted into the hole of the second mounting fixture 400 through interference fit to achieve a fixed connection, thereby achieving fixation with the positioning fixture 100. In other embodiments, the guide member 500 can be installed on the first mounting fixture 300 or the positioning member 200.

[0113] In a preferred embodiment, if Figure 8 A positioning mounting portion 140 is provided on the positioning fixing member 100, and the mounting seat 700 is detachably mounted on the positioning mounting portion 140. When there are two broken wires 6000 at the same waist-shaped groove 3100, different broken wires 6000 can be removed by replacing the positions of the mounting seat 700 and the positioning member 200 relative to the positioning fixing member 100.

[0114] In a preferred embodiment, if Figure 6 The positioning and mounting portion 140 on the positioning and mounting member 100 is disposed adjacent to the positioning hole 130. The first mounting and mounting member 300 and the positioning and mounting member 100 are detachably connected to the positioning and mounting portion 140. When two broken wires 6000 are located at the same waist-shaped groove 3100, after removing one broken wire 6000, the positioning and mounting member 100 can be kept stationary and the first mounting and mounting member 300 can be reinstalled in the positioning hole 130 corresponding to the other broken wire 6000. In this embodiment, the positioning and mounting portion 140 specifically includes a pin hole and a threaded hole. The first mounting and mounting member 300 and the positioning and mounting member 100 are connected to the positioning and mounting portion 140 via a pin and a screw.

[0115] like Figure 6The first mounting fixture 300 is provided with a tool avoidance hole 310 which passes through the first mounting fixture 300 along the T direction. The inner diameter of the tool avoidance hole 310 is larger than the inner diameter of the positioning hole 130 and is coaxial with the positioning hole 130 for the tool to be inserted. The tool can be inserted into the rectangular tube 3000 through the tool avoidance hole 310 and the positioning hole 130 in sequence to remove the broken wire.

[0116] The following is an example of a broken wire 6000 at the left and right two of the three dovetail reinforcement fastening holes 4100 corresponding to the waist groove 3100 to illustrate the process of removing the tool 1000 and removing the broken wire 6000. It can be understood that the left and right refer to Figure 6 The left and right directions are not used to limit the specific installation orientation of the removal tool 1000; Figure 6 , the specific steps for removing the broken wire 6000 are as follows:

[0117] S1. Grind the end surface of the broken 6000 bolt;

[0118] S2. Insert the positioning portion 120 of the positioning fixture 100 into the waist-shaped groove 3100 and tighten the positioning member 200 to the positioning hole 130 in the middle of the three positioning holes 130;

[0119] S3, respectively install the first mounting fixture 300, the second mounting fixture 400, the guide member 500, and the elastic member 600;

[0120] S4. The bushing 800 is installed at the positioning hole 130 on the right side of the positioning fixture 100;

[0121] S5. Install the tool mounting portion 710, which uses a drill chuck, on the tool mounting hole 740 of the mounting base 700. Then, insert the guide mating portion 720 of the mounting base 700 onto the guide member 500, and screw the nut onto the fourth extension section 540 of the guide member 500.

[0122] S6. Install the tool on the tool mounting portion 710 or install it on the tool mounting portion 710 through a 90° corner cutter. The tool is a drill bit.

[0123] S7. After the installation is aligned, start the drill bit and press down the mounting seat 700. The mounting seat 700 moves along the third extension section 530 of the guide member 500 until the lower end surface of the mounting seat 700 abuts against the first guide limit portion 551, and then stop drilling. It can be understood that the upper and lower directions refer to the Figure 6 The up and down directions are not used to limit the specific installation orientation of the removal tool 1000;

[0124] S8. Replace bushings 800 with different diameters and repeat steps S5-S7 to drill through the broken wire 6000. Finally, use a tap and screwdriver to remove the broken wire 6000 debris with a magnet and clean it with a vacuum cleaner. The broken wire 6000 is M12. Three bushings 800 are available: φ5, φ8, and φ9.5 inner diameters. First, use the φ5 bushing 800 to drill the small hole, then use the φ8 bushing 800 to expand the hole, and then use the φ9.5 bushing 800 to continue expanding the hole.

[0125] S9. Remove the first installation fixture 300 from the positioning fixture 100, repeat steps S3-S8, and install the first installation fixture 300 at the left positioning hole 130 among the three positioning holes 130 to complete the removal of the left broken wire 6000.

[0126] In a preferred embodiment, if Figure 10 The mounting seat 700 is provided with a tool mounting hole 740 that runs through the T direction. The tool mounting hole 740 is coaxial with the positioning hole 130 for the tool to be inserted. The tool mounting portion 710 is detachably connected to the tool mounting hole 740. This arrangement makes it easy to replace the tool mounting portion 710 to match different tools.

[0127] In other embodiments, when the tool does not need to be matched with the drill chuck, the tool mounting hole 740 can be used as a tool mounting portion, and the tool can be directly inserted into the tool mounting hole 740 .

[0128] In summary, the dismantling tool 1000 of the present invention has the following advantages:

[0129] Easy installation, precise positioning, and can realize blind drilling;

[0130] It is not limited by the space above the hole, and can realize the removal of broken wires in narrow spaces;

[0131] The rectangular tube fastening holes 3300 and waist-shaped grooves 3100 on the generator stator are used for installation and positioning, which has high precision and avoids sliding and offsetting during drilling. It can also check whether the axial center line of the rectangular tube 3000 and the hole for the broken wire 6000 to be drilled are consistent, thus preventing drilling deviation.

[0132] The bushing 800 installed on the positioning fixture 100 can reduce the loss of the positioning fixture 100. By replacing the bushing 800, various drilling diameters can be achieved, thereby improving the utilization rate of the positioning fixture 100 and the drilling efficiency.

[0133] The guide sliding between the mounting seat 700 and the guide member 500 can center the center and avoid eccentricity, making the positioning more accurate during disassembly drilling, avoiding the breakage of the wire 6000 and the offset of the hole, which will cause the screw thread to be damaged, and improving the disassembly success rate;

[0134] The drilling depth can be controlled to avoid over-drilling or drilling through the hole, which may damage the bottom parts of the dovetail reinforcement fastening hole 4100.

[0135] The compressed elastic member 600 resists external downward pressure, stores deformation energy, makes the downward pressure speed uniform, and avoids deviation caused by excessive pressure.

[0136] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of protection of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of protection of the present invention.

Claims

1. A dismantling tool for removing broken wires from rectangular tubes in wind turbines, characterized in that: The dismantling tool comprises: A positioning fixture having a positioning hole extending through the positioning fixture along a thickness direction of the positioning fixture, wherein the positioning fixture comprises a positioning base and a positioning portion, wherein the positioning portion is provided on one side of the positioning base along the thickness direction of the positioning fixture; a positioning member, detachably connected to the positioning hole of the positioning fixing member; The mounting seat is arranged on the positioning fixing piece, and the mounting seat has a tool mounting portion, which is used to install a tool for removing broken wires. The mounting seat is located on the other side of the positioning base along the thickness direction of the positioning fixing piece.

2. The removal tool according to claim 1, characterized in that: The number of the positioning holes is at least two, and the mounting seat is configured such that when a tool is used to remove a broken wire, the tool can extend into at least one of the positioning holes except the one used to install the positioning member.

3. The removal tool according to claim 2, characterized in that: The positioning fixing member is provided with a positioning mounting portion, and the mounting seat is detachably mounted on the positioning mounting portion; And / or, the removal tool further includes a bushing with at least one inner diameter size, and the bushing is detachably disposed at the positioning hole.

4. The removal tool according to claim 2, characterized in that: There are three positioning holes, which are evenly spaced along the length direction of the positioning fixture. One positioning hole is located at the positioning portion along the length direction of the positioning fixture, and the other two positioning holes are located outside the positioning portion along the length direction of the positioning fixture and are symmetrical about the positioning portion. And / or, the positioning portion has a penetrating positioning avoidance hole along the thickness direction of the positioning fixture, and the projection of at least one of the positioning holes along the thickness direction of the positioning fixture is located within the projection of the positioning avoidance hole along the thickness direction of the positioning fixture; And / or, the tool mounting portion has a through hole coaxial with the positioning hole for the tool to extend into; And / or, the positioning hole is provided on the positioning base.

5. The removal tool according to claim 1, characterized in that: The positioning portion has a first positioning plane at one end away from the mounting seat, and the extension direction of the first positioning plane is perpendicular to the thickness direction of the positioning fixing member; And / or, the positioning portion has second positioning planes at both ends along the width direction of the positioning fixture, and the extension direction of the second positioning planes is parallel to the thickness direction of the positioning fixture; And / or, the length of the positioning base is greater than the length of the positioning portion, and the width of the positioning base is greater than the width of the positioning portion; And / or, the positioning portion is arranged at a middle portion of the positioning base along a length direction of the positioning fixture, and is arranged at a middle portion of the positioning base along a width direction of the positioning fixture.

6. The removal tool according to claim 1, characterized in that: The dismantling tool also includes a guide member, which is fixed on the positioning fixing member and extends along the thickness direction of the positioning fixing member. The mounting seat also has a guide matching portion, which is arranged on the guide member. The mounting seat is slidably arranged along the guide member relative to the positioning fixing member.

7. The removal tool according to claim 6, characterized in that: The guide fitting portion and the guide member are slidably fitted together.

8. The removal tool according to claim 6, characterized in that: The guide members are provided in pairs, the guide matching portions are provided in pairs and correspond one to one with the guide members, and the tool mounting portion is provided between the two paired guide matching portions; And / or, the removal tool further comprises an elastic member, the elastic member being sleeved on the guide member and compressed between the positioning fixing member and the mounting seat, the elastic member being in contact with the mounting seat along one end of the positioning fixing member toward the mounting seat in the thickness direction of the positioning fixing member; And / or, the guide member is provided with two guide limit parts, which are respectively arranged at two ends of the sliding path of the mounting seat.

9. The removal tool according to claim 8, characterized in that: The guide member is provided with a first extension section, a second extension section, a third extension section, and a fourth extension section in sequence along the thickness direction of the positioning fixing member; The first extension section is fixedly connected to the positioning fixture; The outer diameter of the third extension section is smaller than the outer diameter of the second extension section, the two guide limit portions are respectively provided at both ends of the third extension section in the thickness direction of the positioning fixing member, and the guide member is slidably engaged with the guide engagement portion through the third extension section; The elastic member is sleeved on the second extension section and the third extension section of the guide member.

10. The removal tool according to claim 6, characterized in that: The dismantling tool also includes a first mounting fixture and a second mounting fixture arranged in pairs. The first mounting fixture is fixedly connected to the positioning fixture. The two second mounting fixtures in a pair are respectively fixed at both ends of the first mounting fixture along the width direction of the positioning fixture. The guide member is fixedly connected to the second mounting fixture.

11. The removal tool according to claim 10, characterized in that: A positioning mounting portion is provided on the positioning fixing member next to some of the positioning holes, and the first mounting fixing member and the positioning fixing member are detachably connected to the positioning mounting portion. A tool avoidance hole is provided on the first mounting fixing member and passes through the first mounting fixing member along the thickness direction of the positioning fixing member. The inner diameter of the tool avoidance hole is larger than the inner diameter of the positioning hole, and is coaxial with the positioning hole for the tool to be inserted.

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