Lifting device for transformer coils and method of lifting

Abstract

The application discloses a lifting tool for a transformer coil and a lifting method. The lifting tool comprises a connecting piece, a bearing piece and a clamping piece. One end of the connecting piece is provided with a lifting piece, and the other end is provided with a connecting hole. The connecting piece is used for being arranged in an air duct, so that the two ends of the connecting piece can be located outside the air duct. The bearing piece is provided with a matching surface and an assembly hole. The end edge of the coil is used for abutting against the matching surface. The length of the matching surface is greater than or equal to the width of the coil in the width direction, so that when the end edge of the coil abuts against the matching surface, the inner edge and the outer edge of the coil at the abutting position of the bearing piece are located in the matching surface. The assembly hole penetrates through the bearing piece along the thickness direction of the bearing piece. One end of the connecting piece close to the connecting hole is used for penetrating through the assembly hole. The clamping piece is used for being arranged in the connecting hole, so that the clamping piece can abut against the side surface of the bearing piece away from the matching surface. The lifting tool can reduce the risk of damaging the bottom pouring resin of the coil, avoid the occurrence of safety accidents, and facilitate the subsequent disassembly of the lifting tool after the lifting is completed.

Description

Technical Field

[0001] This invention relates to the field of transformer technology, and in particular to a lifting device and method for transformer coils. Background Technology

[0002] As the capacity of offshore wind power dry-type transformers increases, the size and weight of the coils also increase. In order to ensure temperature rise, most coils of the transformer have air channels in the middle for air cooling. These air channels can be used to lift such coils to assemble the transformer coils.

[0003] In the prior art, when lifting and assembling coils with air passages, since the size and weight of the coils are relatively small, a connector is inserted into the air passage. The upper end of the connector is connected and fitted with the lifting equipment, and only a fastener that can ensure the lifting strength is placed at the lower end, so as to realize the lifting and assembly of the coil.

[0004] As the size and weight of the coils increase, the drawbacks of this method become apparent. During the lifting process, the fasteners may damage the resin poured at the bottom of the coil, causing problems in subsequent operation. Due to operator negligence, insufficient insertion distance of the lower fasteners may cause the coil to fall from the air, resulting in a safety accident. Summary of the Invention

[0005] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a lifting device for transformer coils to reduce the risk of coil damage during lifting and avoid safety accidents.

[0006] The present invention also proposes a method for lifting a transformer with a gas duct coil.

[0007] According to a first aspect of the present invention, a lifting device for a transformer coil has a plurality of air passages. The lifting device includes a connector, a load-bearing member, and a snap-fit ​​member. One end of the connector is provided with a lifting member, and the other end is provided with a connecting hole. The connector is used to pass through the air passages so that both ends of the connector can be located outside the air passages. The load-bearing member is provided with a mating surface and an assembly hole. The end edge of the coil is used to abut against the mating surface. The length of the mating surface is greater than or equal to the radial width of the coil, so that when the end edge of the coil abuts against the mating surface, the inner and outer edges of the coil at the point of contact with the load-bearing member are both located within the mating surface. The assembly hole penetrates the load-bearing member along its thickness direction. One end of the connector near the connecting hole is used to pass through the assembly hole. The snap-fit ​​member is used to pass through the connecting hole so that the snap-fit ​​member can abut against the side of the load-bearing member opposite to the mating surface.

[0008] The lifting device for transformer coils according to embodiments of the present invention has at least the following beneficial effects: When lifting transformer coils with air ducts using the lifting device proposed in this invention, the bottom edge of the coil abuts against the mating surface of the load-bearing component. The mating surface is adapted to the surface of the bottom edge of the coil, and the length of the mating surface is greater than or equal to the radial width of the coil. When the bottom edge of the coil abuts against the mating surface, the inner and outer edges of the coil at the point of contact with the load-bearing component are both located within the mating surface, thereby increasing the contact area between the coil and the lifting device, improving the force-bearing area of ​​the coil, making the lifting more stable, thereby reducing the risk of damaging the resin poured at the bottom of the coil, and preventing the coil from falling from the air during the lifting process, avoiding safety accidents, and facilitating the subsequent disassembly of the lifting device after the lifting is completed.

[0009] According to some embodiments of the present invention, the load-bearing member has a groove on the side opposite to the mating surface, and the snap-fit ​​member can at least partially snap into the groove.

[0010] According to some embodiments of the present invention, the bottom wall of the groove is provided with a plurality of first protrusions, and the side of the snap-fit ​​member is provided with a corresponding second protrusion. When the snap-fit ​​member is snapped into the groove, the first protrusions and the second protrusions are misaligned so that the second protrusions engage with the corresponding first protrusions.

[0011] According to some embodiments of the present invention, the load-bearing member has a first side and a second side opposite to each other, both of which are arc surfaces. The curvature of the first side is adapted to the curvature of the outer wall of the coil, and the curvature of the second side is adapted to the curvature of the inner wall of the coil.

[0012] According to some embodiments of the present invention, both ends of the snap-fit ​​member are provided with limiting portions, which extend in a direction away from the side of the snap-fit ​​member, and the limiting portions are used to limit the position of the coil along the radial direction.

[0013] According to some embodiments of the present invention, a guide surface is provided between the side of the snap-fit ​​member away from the second protrusion and the end face of the limiting portion, the guide surface being used to facilitate the snap-fit ​​member entering and exiting the connection hole.

[0014] According to some embodiments of the present invention, the snap-fit ​​member is provided with a limiting groove on the side opposite to the load-bearing member, and the connector at the connecting hole is used to snap into the limiting groove.

[0015] According to some embodiments of the present invention, the lifting member and the connecting member are detachably connected, and the end of the lifting member away from the connecting member is provided with a lifting hole.

[0016] According to some embodiments of the present invention, the connecting hole is a strip-shaped hole extending along the length direction of the connector.

[0017] A method for lifting a transformer coil according to a second aspect of the present invention includes the following steps: selecting two or more lifting devices according to any of the above embodiments; using a lifting device to place the connector along the air passage corresponding to the coil, so that the connecting hole of the connector is exposed outside the coil, wherein the two or more connectors are placed circumferentially spaced along the coil; inserting the connector along the assembly hole, so that the load-bearing member is assembled to the connector along the lower end of the connector; inserting the snap-fit ​​member along the connection hole, so that the snap-fit ​​member is assembled to the connector; activating the lifting device to move the two or more connectors upward along the corresponding air passage, so that the snap-fit ​​member abuts against the side of the load-bearing member away from the mating surface, and the load-bearing member abuts against the end edge of the coil at the corresponding position at the bottom; using the lifting device to lift the coil to the corresponding position to assemble the coil, and then disassembling the corresponding lifting device.

[0018] The method for lifting transformer coils according to embodiments of the present invention has at least the following beneficial effects: the method for lifting transformer coils with air channels proposed in this invention results in more stable lifting, thereby reducing the risk of damaging the resin poured at the bottom of the coil, preventing the coil from falling from the air during the lifting process, avoiding safety accidents, and facilitating the subsequent disassembly of the lifting equipment after lifting.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 This is a perspective view of a lifting device according to an embodiment of the present invention;

[0022] Figure 2 for Figure 1 An exploded view of the lifting device in the illustrated embodiment;

[0023] Figure 3 for Figure 1 Assembly sectional view of the lifting device in the embodiment shown;

[0024] Figure 4 This is a three-dimensional schematic diagram of the load-bearing component of a lifting device according to an embodiment of the present invention;

[0025] Figure 5 This is a perspective view of the snap-fit ​​component of a lifting device according to an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram showing the completed assembly of the lifting equipment before lifting.

[0027] Figure 7 This is a schematic diagram of coil lifting and assembly.

[0028] Icon labels:

[0029] Connector 100, connecting hole 110, second through hole 120, bolt 130;

[0030] Lifting component 200, lifting hole 210, first through hole 220

[0031] Load-bearing component 300, mating surface 310, mounting hole 320, groove 330, first protrusion 331, first side surface 340, second side surface 350;

[0032] The components include: a snap-fit ​​part 400, a second protrusion 410, a limiting part 420, a guide surface 430, and a limiting groove 440.

[0033] Coil 500, airway 510;

[0034] The lower pad is 600mm and the silicone pad is 700mm. Detailed Implementation

[0035] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0036] In the description of this invention, it should be understood that the orientation descriptions, such as left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0037] In the description of this invention, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0038] In the description of this invention, unless otherwise explicitly defined, terms such as "setting," "installing," and "connecting" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0039] Reference Figure 1 . Figure 2 , Figure 3The lifting device for a transformer coil 500 according to the first aspect of the present invention includes a connector 100, a load-bearing component 300, and a snap-fit ​​component 400. The coil 500 has multiple air passages 510 that extend along the height direction of the coil 500 and are spaced apart circumferentially along the coil 500. A lifting component 200 is provided at one end of the connector 100. The lifting component 200 can be connected to lifting equipment such as cranes, overhead cranes, and electric hoists. The width and thickness of the lifting component 200 are greater than those of the connector 100 to improve the strength of the lifting component 200 and facilitate its connection to the lifting equipment. The other end of the connector 100 is provided with a connecting hole 110. In this embodiment, the connecting hole 110 is a strip-shaped hole extending along the length direction of the connector 100. The connector 100 can be made of materials such as copper or stainless steel, and the cross-sectional shape of the connector 100 can be set as a square structure. Thus, the connector 100 is a long strip-shaped sheet, so that the connector 100 can be inserted along the air passage 510 of the coil 500. Furthermore, the length of the connector 100 is greater than the length of the coil 500. When the connector 100 is inserted into the air passage 510, both ends of the connector 100 can be located outside the air passage 510.

[0040] The load-bearing component 300 is provided with a mating surface 310 and an assembly hole 320. The surface of the mating surface 310 is smooth, and the length L1 of the mating surface 310 is greater than or equal to the radial width L2 of the coil 500. When the coil 500 is lifted, the end edge of the coil 500 abuts against the mating surface 310. Furthermore, when the end edge of the coil 500 abuts against the mating surface 310, the inner and outer edges of the coil 500 at the point of contact with the load-bearing component 300 are both located within the mating surface 310. The assembly hole 320 extends along the load-bearing component 310. The thickness direction of 00 penetrates through the load-bearing member 300, and one end of the connector 100 near the connection hole 110 can pass through the assembly hole 320; the snap-fit ​​member 400 is used to pass through the connection hole 110, and the snap-fit ​​member 400 has a plate-like structure, that is, the thickness of the snap-fit ​​member 400 is much smaller than the length of the snap-fit ​​member 400, so that the snap-fit ​​member 400 can pass through the connection hole 110. When lifting the coil 500, the snap-fit ​​member 400 can abut against the side of the load-bearing member 300 away from the mating surface 310.

[0041] It should be noted that the radial direction of coil 500 refers to its radial direction, and the radial width L2 of coil 500 refers to the distance between the outer edge and the inner edge of coil 500 along its radial direction. The dimensions of the snap-fit ​​component 400 must meet the strength requirements for lifting coil 500 to ensure its safety.

[0042] It is understandable that, provided the dimensions of the connector 100 meet the requirements, the connecting hole 110 may also be a round hole, an elliptical hole, etc., and this is not limited here.

[0043] When using the lifting device proposed in this invention to lift the transformer coil 500 with air duct 510, the bottom edge of the coil 500 abuts against the mating surface 310 of the load-bearing component 300. The mating surface 310 is adapted to the surface of the bottom edge of the coil 500, and the length of the mating surface 310 is greater than or equal to the radial width of the coil 500. When the bottom edge of the coil 500 abuts against the mating surface 310, both the inner and outer edges of the coil 500 at the point of contact with the load-bearing component 300 are located within the mating surface 310. This increases the contact area between the coil 500 and the lifting device, correspondingly increasing the stress-bearing area of ​​the coil 500, thereby reducing the risk of damaging the resin poured at the bottom of the coil 500, making the lifting more stable, and preventing the coil 500 from falling from the air during the lifting process, avoiding safety accidents. It also facilitates the subsequent disassembly of the lifting device after the lifting is completed. Furthermore, the lifting device does not require a complicated installation process, and the disassembly of the lifting device is also convenient after the coil 500 is assembled, eliminating potential safety hazards during the installation and disassembly of the lifting device.

[0044] Reference Figure 4 In some embodiments, the load-bearing member 300 has a groove 330 on the side opposite to the mating surface 310, and the snap-fit ​​member 400 can be at least partially snapped into the groove 330, thereby preventing the snap-fit ​​member 400 from deflecting on the load-bearing member 300 when lifting the coil 500, thus improving the safety of lifting.

[0045] Reference Figure 3 , Figure 4 , Figure 5 In some embodiments, the bottom wall of the groove 330 is provided with a plurality of first protrusions 331, and the side of the snap-fit ​​member 400 is provided with corresponding second protrusions 410. In the embodiment shown in the figure, there are four first protrusions 331 and three second protrusions 410. Furthermore, both the first protrusions 331 and the second protrusions 410 are square block structures. When the snap-fit ​​member 400 is snapped into the groove 330, the first protrusions 331 and the second protrusions 410 are misaligned so that the second protrusions 410 engage with the corresponding first protrusions 331, thereby forming a serrated engagement structure with concave and convex features between the load-bearing member 300 and the snap-fit ​​member 400. The load-bearing component 300 and the snap-fit ​​component 400 can be connected and positioned through a serrated engagement structure, which can prevent displacement between the load-bearing component 300 and the snap-fit ​​component 400 when lifting the coil 500, thereby further improving the safety of lifting. Furthermore, by forming a serrated engagement structure between the load-bearing component 300 and the snap-fit ​​component 400, assembly between the load-bearing component 300 and the snap-fit ​​component 400 can be achieved without other assembly structures, making assembly and disassembly convenient and quick. Moreover, the serrated engagement structure formed between the load-bearing component 300 and the snap-fit ​​component 400 can increase the lifting strength of the lifting device.

[0046] It is understood that the number of the first protrusion 331 can be set to two or more depending on the specific situation, and the number of the second protrusion 410 can be set according to the first protrusion 331. The first protrusion 331 and the second protrusion 410 can also be set as triangular block structures, which are not limited here.

[0047] Reference Figure 4 , Figure 6 In some embodiments, the load-bearing component 300 has a first side 340 and a second side 350, both of which are curved surfaces. The curvature of the first side 340 matches the curvature of the outer wall of the coil 500, and the curvature of the second side 350 matches the curvature of the inner wall of the coil 500. This allows the two sides of the load-bearing component 300 to fit the radial dimension of the coil 500, reducing unnecessary volume and weight of the load-bearing component 300. This facilitates the connection between the load-bearing component 300 and the connector 100, as well as the unloading of the load-bearing component 300 after the coil 500 is assembled. It also reduces the material usage of the load-bearing component 300 and lowers its manufacturing cost.

[0048] It should be noted that the length L1 of the mating surface 310 refers to the distance from the first side surface 340 to the second side surface 350.

[0049] Reference Figure 5 , Figure 6 In some embodiments, both ends of the snap-fit ​​member 400 are provided with limiting portions 420. The limiting portions 420 extend in a direction away from the side of the snap-fit ​​member 400 and are integral with the snap-fit ​​member 400. When the coil 500 is lifted, the bottom of the coil 500 is located between the two limiting portions 420 of the snap-fit ​​member 400, that is, the outer edge and inner edge of the bottom of the coil 500 are located between the two limiting portions 420. Thus, the limiting portions 420 can limit the position of the coil 500 on the load-bearing member 300.

[0050] Reference Figure 5 In some embodiments, a guide surface 430 is provided between the side of the snap-fit ​​member 400 away from the second protrusion 410 and the end face of the limiting portion 420. The guide surface 430 is used to facilitate the snap-fit ​​member 400 entering and exiting the connection hole 110. Specifically, in Figure 2 , Figure 3 In the embodiment shown, the length of the connecting hole 110 is less than the distance from the side of the snap-fit ​​member 400 away from the second protrusion 410 to the top of the limiting part 420, and greater than the width of the limiting part 420 and the height of the snap-fit ​​member 400. When the snap-fit ​​member 400 is inserted along the connecting hole 110, the limiting part 420 is first inserted into the connecting hole 110, and then the snap-fit ​​member 400 is passed through the connecting hole 110 through the guide surface 430.

[0051] It is understood that the guide surface 430 can be an arc-shaped surface as shown in the figure, or it can be a plane that is angled to the end face of the limiting part 420 and the side of the snap-fit ​​member 400 away from the second protrusion 410. There is no limitation here.

[0052] Reference Figure 5 , Figure 6 In some embodiments, the snap-fit ​​member 400 has a limiting groove 440 on the side opposite to the load-bearing member 300. The connector 100 at the connecting hole 110 is used to snap into the limiting groove 440. Through the cooperation between the connector 100 and the limiting groove 440 on the snap-fit ​​member 400, the connector 100 can be limited to prevent the connector 100 from shaking during the lifting process.

[0053] Reference Figure 1 , Figure 2 , Figure 3 , Figure 6 In some embodiments, the lifting member 200 and the connecting member 100 are detachably connected, and the end of the lifting member 200 away from the connecting member 100 is provided with a lifting hole 210. Specifically, a first through hole 220 is provided at the end of the lifting member 200 near the connecting member 100, and a second through hole 120 is provided at the corresponding end of the connecting member 100. The lifting member 200 and the connecting member 100 are fixedly connected by bolts 130 passing through the first through hole 220 and the second through hole 120. After the coil 500 is lifted, there is no need to disassemble the lifting member 200 and the connecting member 100.

[0054] Understandably, provided that the strength requirements are met, the lifting component 200 and the connecting component 100 can also be configured as an integral structure, and this is not limited here.

[0055] Reference Figure 7The lifting method for a transformer coil 500 according to the second aspect of the present invention includes the following steps: selecting two lifting devices as described in the above specific embodiments; using the lifting equipment to place two connectors 100 along the air passages 510 corresponding to the coil 500, so that the connecting holes 110 of the connectors 100 are exposed outside the coil 500; placing the two connectors 100 opposite each other along the circumference of the coil 500; inserting the connectors 100 along the assembly holes 320, so that the load-bearing member 300 is assembled to the connectors 100 along the lower end of the connectors 100; then inserting the snap-fit ​​member 400 along the connecting holes 110, and snapping the connectors 100 into the limiting grooves 440 on the snap-fit ​​member 400; starting the lifting equipment, so that the two connectors 100 move upward along the corresponding air passages 510, and the snap-fit ​​member 400 snaps into the load-bearing member 510. The groove 330 on the side of the heavy component 300 away from the mating surface 310 is engaged with the first protrusion 331 on the heavy component 300 and the second protrusion 410 on the snap-fit ​​component 400, so that the heavy component 300 abuts against the end edge of the coil 500 at the corresponding position at the bottom. The inner and outer edges of the coil 500 at the point of contact with the heavy component 300 are both located within the mating surface 310. The transformer is provided with a lower pad 600, on which a silicone pad 700 is placed. The silicone pad 700 can play a shock absorption role. The coil 500 is hoisted onto the transformer by a lifting device, the angle of the coil 500 is adjusted to determine the position, and the coil 500 is placed on the silicone pad 700. Then, the snap-fit ​​component 400, the heavy component 300, and the connector 100 are removed, thus completing the assembly of the coil 500.

[0056] The lifting method for the transformer coil 500 proposed in this invention provides a more stable lifting experience, thereby reducing the risk of damaging the resin poured at the bottom of the coil 500 and preventing the coil 500 from falling during lifting, thus avoiding safety accidents. It also facilitates the subsequent disassembly of the lifting equipment after lifting. Furthermore, the lifting equipment used in this method requires no complicated installation procedures, and the disassembly of the lifting equipment is convenient after the coil 500 is assembled, eliminating potential safety hazards during the installation and disassembly of the lifting equipment.

[0057] It should be noted that when lifting coil 500, two or more lifting devices can be selected according to the size and weight of coil 500 to ensure lifting safety.

[0058] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A lifting device for a transformer coil, the coil having a plurality of air passages, characterized in that, include: The connector has a lifting member at one end and a connecting hole at the other end. The connector is used to pass through the airway so that both ends of the connector can be located outside the airway. A load-bearing component is provided with a mating surface and an assembly hole. The end edge of the coil is used to abut against the mating surface. The length of the mating surface is greater than or equal to the radial width of the coil, so that when the end edge of the coil abuts against the mating surface, the inner and outer edges of the coil at the point of contact with the load-bearing component are both located within the mating surface. The assembly hole penetrates the load-bearing component along its thickness direction. One end of the connector near the connecting hole is used to pass through the assembly hole. A snap-fit ​​element is provided through the connection hole so that the snap-fit ​​element can abut against the side of the load-bearing member away from the mating surface; The load-bearing component has a groove on the side away from the mating surface. The snap-fit ​​component can be at least partially snapped into the groove. The bottom wall of the groove has a plurality of first protrusions. The side of the snap-fit ​​component has a corresponding second protrusion. When the snap-fit ​​component is snapped into the groove, the first protrusions and the second protrusions are misaligned so that the second protrusions engage with the corresponding first protrusions.

2. The lifting device for transformer coils according to claim 1, characterized in that, The load-bearing component has a first side and a second side, both of which are curved surfaces. The curvature of the first side matches the curvature of the outer wall of the coil, and the curvature of the second side matches the curvature of the inner wall of the coil.

3. The lifting device for transformer coils according to claim 1, characterized in that, Both ends of the snap-fit ​​component are provided with limiting portions, which extend in a direction away from the side of the snap-fit ​​component and are used to limit the position of the coil along the radial direction.

4. The lifting device for transformer coils according to claim 3, characterized in that, A guide surface is provided between the side of the snap-fit ​​member away from the second protrusion and the end face of the limiting part, and the guide surface is used to facilitate the snap-fit ​​member to enter and exit the connection hole.

5. The lifting device for transformer coils according to claim 1, characterized in that, The snap-fit ​​component has a limiting groove on the side opposite to the load-bearing component, and the connector at the connecting hole is used to snap into the limiting groove.

6. The lifting device for transformer coils according to claim 1, characterized in that, The lifting component is detachably connected to the connecting component, and the end of the lifting component away from the connecting component is provided with a lifting hole.

7. The lifting device for transformer coils according to claim 1, characterized in that, The connecting hole is a strip-shaped hole extending along the length direction of the connector.

8. A method for lifting a transformer coil, the coil having multiple air passages, characterized in that, Includes the following steps: Select two or more lifting devices as described in any one of claims 1 to 7; Using a lifting device, the connector is placed into the air passage corresponding to the coil, so that the connection hole of the connector is exposed outside the coil, wherein two or more connectors are placed at intervals along the circumference of the coil; Insert the connector along the mounting hole, so that the load-bearing component is assembled to the connector along the lower end of the connector; Insert the snap-fit ​​component along the connection hole to assemble the snap-fit ​​component onto the connector; Start the lifting equipment to move two or more of the connecting parts upward along the corresponding air passages, so that the snap-fit ​​part abuts against the side of the load-bearing part away from the mating surface, and the load-bearing part abuts against the end edge of the coil at the corresponding position at the bottom; The coil is lifted to the appropriate position using the lifting equipment to assemble the coil, and then the corresponding lifting device is disassembled.

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