A transformer cover removal device

Abstract

The present invention discloses a transformer upper cover removal device, comprising: a lifting mechanism, a tooling upper cover, a column group, a clamping seat assembly, a positioning sleeve assembly and a tooling base; the tooling upper cover and the tooling base are respectively fixed at two ends of the column group to form a support for the upper cover removal device; the clamping seat assembly is fixed on the column group through a positioning sleeve assembly and is located under the lifting mechanism, and is used to clamp the transformer; one end of the lifting mechanism is a lifting rod, and the other end is a lifting screw assembly, and the lifting rod and the lifting screw assembly are connected by a screw rod; after the lifting mechanism extends from two ends of a through hole set in the center of the tooling upper cover, the top is connected to the lifting rod, and the bottom is connected to the lifting screw assembly, wherein the lifting rod is used to apply a lifting force, and the lifting screw assembly is used to connect the transformer upper cover, and the screw rod is driven to rotate and rise by the lifting rod until the transformer upper cover is lifted out of the transformer.

Description

Technical Field

[0001] The invention relates to the technical field of aviation equipment, and in particular to a transformer upper cover removal device. Background Art

[0002] When repairing a transformer in the field of aviation equipment technology, it is necessary to first remove its upper cover, and only after removing the upper cover can the coil inside the cylindrical shell be inspected and repaired. Since the transformer upper cover is embedded inside the end face of its cylindrical shell, it is difficult to remove the upper cover, and there is currently no better transformer upper cover removal tool. Summary of the invention

[0003] In view of this, the present invention provides a transformer upper cover removal device, which can stably and reliably remove the transformer upper cover.

[0004] The technical solution of the present invention is:

[0005] A transformer upper cover removal device comprises: a lifting mechanism, a tooling upper cover, a column group, a clamping seat assembly, a positioning sleeve assembly and a tooling base; the tooling upper cover and the tooling base are respectively fixed at both ends of the column group to form a support for the upper cover removal device; the clamping seat assembly is fixed on the column group through the positioning sleeve assembly and is located under the lifting mechanism for clamping the transformer; one end of the lifting mechanism is a lifting rod, and the other end is a lifting screw assembly, and the lifting rod and the lifting screw assembly are connected by a screw rod; after the lifting mechanism extends from both ends of the through hole set in the center of the tooling upper cover, the top is connected to the lifting rod, and the bottom is connected to the lifting screw assembly, wherein the lifting rod is used to apply a lifting force, and the lifting screw assembly is used to connect the transformer upper cover, and the screw rod is driven to rotate and rise by the lifting rod until the transformer upper cover is lifted out of the transformer.

[0006] As a preferred embodiment, the lifting rod is a rotating rod, and the lifting screw assembly includes a lifting screw, a lifting screw mounting base and a lifting screw mounting base cover. The lifting screw mounting base is a sleeve structure with an opening at one end and a hole processed at the other end. A threaded through hole A is opened at the center of its inner bottom surface, and a threaded through hole C is opened at the center of the lifting screw mounting base cover. After the lifting screw mounting base cover and the lifting screw mounting base are fixed, the threaded through hole A and the threaded through hole C are on the same axis and the aperture of the threaded through hole C is larger than that of the threaded through hole A; the screw is a stepped shaft on which an external thread is arranged, and the diameter of the upper end thereof is consistent with the aperture of the threaded through hole C, and the diameter of the lower end is consistent with the aperture of the threaded through hole A. After the lower end of the screw passes through the threaded through hole C on the lifting screw mounting base cover and the threaded through hole A on the lifting screw mounting base in sequence, its end is engaged with the hexagonal screw Female thread connection, the step surface of the screw rod abuts against the inner bottom surface of the lifting screw mounting base, a rotating rod is installed at the upper end of the screw rod, the rotating rod is used to apply a rotational torque to the screw rod, and a cotter pin is installed radially at the lower end of the screw rod for axially limiting the hexagonal nut; more than two through holes A and more than two through holes B evenly distributed along the circumferential direction are respectively provided on the inner bottom surface of the lifting screw mounting base and the upper cover of the lifting screw mounting base, and the through holes A and the through holes B correspond one to one. One end of the lifting screw is provided with a shoulder and the other end is provided with an external thread. It passes through the through hole A of the lifting screw mounting base and the through hole B of the upper cover of the lifting screw mounting base in sequence, so that the end of the lifting screw with the shoulder extends out of the through hole B and the shoulder is limited in the cavity between the lifting screw mounting base and the upper cover of the lifting screw mounting base, and the end with the external thread is used for threaded connection with the upper cover of the transformer.

[0007] As a preferred solution, a radial through hole A is provided at the upper end of the screw rod, and the rotating rod is slidably matched with the radial through hole A at the upper end of the screw rod.

[0008] As a preferred solution, bosses are provided at both ends of the rotating rod to prevent the rotating rod from sliding out of the radial through hole A at the upper end of the screw rod.

[0009] As a preferred solution, the clamping seat assembly includes more than two clamping seats with the same structure but different inner diameters, which are used to clamp transformers of different models. The different clamping seats are mounted on the column group from bottom to top in order of inner diameter from small to large.

[0010] As a preferred solution, the positioning sleeve assembly includes more than two positioning sleeves, which correspond to more than two clamping seats one by one, respectively, and are used to position different clamping seats.

[0011] As a preferred solution, the column group includes three columns evenly distributed on the same circumference, and both ends of each column are respectively threadedly connected to the tooling cover and the tooling base.

[0012] As a preferred solution, each of the clamping seats includes two clamping plates, which have the same structure and size and are both semicircular. A radial ear and a tangential ear are respectively provided at both ends of each clamping plate. A radial through hole C perpendicular to the extending direction of the radial ear is provided on the radial ear, and an axial through hole is provided on the tangential ear. The two clamping plates are arranged opposite to each other to form a circular ring. The two tangential ears are overlapped and sleeved on a column. The two radial ears are arranged opposite to each other and are clamped and fixed by clamping screws.

[0013] As a preferred solution, the upper cover removal device also includes an elastic retaining ring for the shaft, which is sleeved on the column where the axial through hole on the tangential ear of the uppermost clamping seat is located and abuts against the upper end surface of the uppermost clamping seat, so as to limit the axial movement of the uppermost clamping seat.

[0014] As a preferred solution, the tooling upper cover is connected to the upper end of each column via a cap nut.

[0015] Beneficial effects:

[0016] (1) The present invention can overcome the problem that the transformer upper cover is embedded in the housing and is difficult to remove, and can stably and reliably remove the transformer upper cover.

[0017] (2) The present invention is easy to install and disassemble, and will not cause damage to the transformer during installation and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of the transformer upper cover removal device of the present invention.

[0019] Figure 2 It is a top view of the transformer upper cover removal device of the present invention.

[0020] Figure 3 It is a front view of the lifting mechanism of the present invention.

[0021] Figure 4 It is a top view of the lifting mechanism of the present invention.

[0022] Figure 5 It is a structural schematic diagram of the clamping seat in the present invention.

[0023] Among them, 1-lifting mechanism, 2-tooling cover, 3-column, 4-clamping seat assembly, 5-positioning sleeve A, 6-tooling base, 7-positioning sleeve B, 8-elastic retaining ring for shaft, 9-cap nut, 10-turn rod, 11-screw, 12-lifting screw, 13-pan head screw, 14-open pin, 15-hexagonal nut, 16-lifting screw mounting base, 17-lifting screw mounting seat cover DETAILED DESCRIPTION

[0024] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0025] This embodiment provides a transformer upper cover removal device, which can stably and reliably remove the transformer upper cover.

[0026] like Figure 1 and 2 As shown, the upper cover removal and removal device includes a lifting mechanism 1, a tooling upper cover 2, a column group, a clamping seat assembly 4, a positioning sleeve assembly and a tooling base 6; the tooling upper cover 2 and the tooling base 6 are both circular plate structures, and a threaded through hole is processed in the center of the tooling upper cover 2. The tooling upper cover 2 and the tooling base 6 are respectively fixed at both ends of the column group to form a support for the upper cover removal and removal device. One end of the lifting mechanism 1 is a lifting rod, and the other end is a lifting screw assembly. The lifting rod and the lifting screw assembly are connected by a screw 11, specifically: the screw 11 is an externally threaded rod, which is threadedly connected to the threaded through hole in the center of the tooling upper cover 2. After the two ends of the screw 11 extend out from the threaded through hole of the tooling upper cover 2, the top is connected to the lifting rod, and the bottom is connected to the lifting screw assembly. The lifting rod is used to facilitate the operator to apply a lifting force, and the lifting screw assembly is used to connect with the transformer upper cover; the clamping seat assembly 4 is fixed on the column group through the positioning sleeve assembly and is located under the lifting mechanism 1, and is used to clamp the transformer.

[0027] Specifically: when using the above-mentioned upper cover removal device, first place the transformer in the clamping seat assembly 4 and clamp it, then connect the lifting screw assembly of the lifting mechanism 1 to the upper cover of the transformer, and finally, rotate the lifting rod of the lifting mechanism 1 to drive the screw 11 to rotate and rise until the transformer upper cover is lifted out of the transformer, thereby realizing the separation of the upper cover and the transformer.

[0028] Further, such as Figure 3 and 4As shown, the rotating rod 10 serves as a lifting rod, and the lifting screw assembly includes a lifting screw 12, a lifting screw mounting base 16 and a lifting screw mounting base cover 17. The lifting screw mounting base 16 is a sleeve structure with an opening at one end and a through hole processed at the other end. Two or more threaded holes A are evenly arranged along the circumferential direction on its inner bottom surface, and a threaded through hole A is opened at the center of its inner bottom surface. The lifting screw mounting base cover 17 is a circular plate structure, and two or more threaded through holes B are evenly arranged along the circumferential direction on its end surface, which correspond to the threaded holes A on the lifting screw mounting base 16 one by one. , a threaded through hole C is provided at the center, and the pan head screw 13 passes through the threaded through hole B on the upper cover 17 of the lifting screw mounting seat and the corresponding threaded hole A on the lifting screw mounting base 16, and then the lifting screw mounting seat upper cover 17 and the lifting screw mounting base 16 are fixed; the screw rod 11 is a stepped shaft, the upper end diameter of which is larger than the lower end diameter, and the upper end diameter is consistent with the aperture of the threaded through hole C, and the lower end diameter is consistent with the aperture of the threaded through hole A, and the lower end of the screw rod 11 passes through the threaded through hole C on the upper cover 17 of the lifting screw mounting seat and the lifting screw mounting base in sequence After the threaded through hole A on the lifting screw mounting base 16 is inserted, its end is threadedly connected with the hexagonal nut 15, the step surface of the screw rod 11 contacts the inner bottom surface of the lifting screw mounting base 16, the upper end of the screw rod 11 is provided with a radial through hole A for mounting the rotating rod 10, the rotating rod 10 is used to apply a rotational torque to the screw rod 11, and the lower end of the screw rod 11 is provided with a radial through hole B for mounting a cotter pin 14, the cotter pin 14 is used to axially limit the hexagonal nut 15; the inner bottom surface of the lifting screw mounting base 16 and the upper cover 17 of the lifting screw mounting seat are respectively provided with circumferential There are more than two through holes A and more than two through holes B evenly distributed, and the through holes A and the through holes B correspond to each other one by one. One end of the lifting screw 12 is provided with a shoulder and the other end is provided with an external thread. The lifting screw 12 passes through the through hole A of the lifting screw mounting base 16 and the through hole B of the lifting screw mounting seat cover 17 in sequence, so that the end with the shoulder extends out of the through hole B and the shoulder is restricted in the cavity between the lifting screw mounting base 16 and the lifting screw mounting seat cover 17, and the end with the external thread is used for threaded connection with the threaded hole on the upper cover of the transformer.

[0029] Furthermore, the rotating rod 10 is slidably matched with the radial through hole A at the upper end of the screw rod 11 , and bosses are provided at both ends of the rotating rod 10 to limit the rotating rod 10 from sliding out of the radial through hole A at the upper end of the screw rod 11 .

[0030] Furthermore, the column group includes three columns 3 evenly distributed on the same circumference, and threaded holes B are respectively provided at both ends of each column 3 along the axial direction. Threaded through holes D corresponding to the three columns 3 are processed on the end face of the tooling cover 2, and three threaded through holes E evenly distributed along the circumference and corresponding to the three through holes on the tooling cover 2 are processed on the end face of the tooling base 6. The two ends of each column 3 are respectively threadedly connected with the threaded through holes D on the tooling cover 2 and the threaded through holes E on the tooling base 6, so as to facilitate the installation and disassembly of the upper cover removal device.

[0031] Furthermore, the clamping seat assembly 4 includes a clamping seat A and a clamping seat B, which are used to clamp transformers of different models, and the clamping seat with a larger inner diameter is coaxially arranged on the clamping seat with a smaller inner diameter;

[0032] like Figure 5 As shown, the clamping seat A and the clamping seat B have the same structure but different sizes. Taking the clamping seat A as an example, it includes two identical semicircular clamping plates, and radial ears and tangential ears are respectively arranged at both ends of each clamping plate. The radial ear is provided with a radial through hole C perpendicular to the extending direction of the radial ear, and the tangential ear is provided with an axial through hole. The two clamping plates are arranged opposite to each other to form a circular ring. The two tangential ears are overlapped and sleeved on a column 3. The two radial ears are arranged opposite to each other and are clamped and fixed by clamping screws.

[0033] Further, the clamping seat with a larger inner diameter is clamping seat A, and the clamping seat with a smaller inner diameter is clamping seat B. The positioning sleeve assembly includes a positioning sleeve A5 and a positioning sleeve B7, which respectively position the clamping seat B and the clamping seat A; the positioning sleeve A5 is a circular ring, and its inner diameter is not larger than the inner diameter of the clamping seat B. Three through holes are evenly arranged on its annular surface. The positioning sleeve A5 is sleeved on the column 3 through the three through holes thereon, and one end thereof is in conflict with the bottom surface of the clamping seat B, and the other end is in conflict with the tooling base 6; the positioning sleeve B7 is a circular ring with an inner diameter larger than the positioning sleeve A5 but not larger than the inner diameter of the clamping seat A. Three through holes are evenly arranged on its annular surface. The three through holes on the positioning sleeve B7 are sleeved on the column 3, and one end thereof is in conflict with the top surface of the clamping seat B, and the other end is in conflict with the bottom surface of the clamping seat A.

[0034] Furthermore, the upper cover removal device also includes an axial elastic retaining ring 8, which is sleeved on the column 3 where the axial through hole on the tangential ear of the clamping seat A is located and abuts against the upper end surface of the clamping seat A to limit the axial movement of the clamping seat A.

[0035] Furthermore, the tooling cover 2 is connected to the upper end of each column 3 via a cap nut 9, and the hemispherical structure at the end of the cap nut 9 can prevent the user from scratching the end of the lifting rod when rotating it.

[0036] Furthermore, an inner nut is coaxially fixed at the center of the upper end of the tooling cover 2 to increase the threaded connection length between the screw rod 11 and the tooling cover 2 .

[0037] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A transformer cover removal device, characterized in that: include: A lifting mechanism (1), a tooling upper cover (2), a column group, a clamping seat assembly (4), a positioning sleeve assembly and a tooling base (6); the tooling upper cover (2) and the tooling base (6) are respectively fixed at both ends of the column group to form a support for the upper cover removal device; the clamping seat assembly (4) is fixed to the column group through the positioning sleeve assembly and is located below the lifting mechanism (1) for clamping the transformer; one end of the lifting mechanism (1) is a lifting rod, and the other end is a lifting screw assembly, and the lifting rod and the lifting screw assembly are connected by a screw (11); after the lifting mechanism (1) extends from the through hole set in the center of the tooling upper cover (2) at both ends, the top is connected to the lifting rod, and the bottom is connected to the lifting screw assembly, wherein the lifting rod is used to apply a lifting force, and the lifting screw assembly is used to connect the transformer upper cover, and the lifting rod drives the screw (11) to rotate and rise until the transformer upper cover is lifted out of the transformer; The clamping seat assembly (4) comprises two or more clamping seats with the same structure but different inner diameters, which are used to clamp transformers of different models, and the different clamping seats are mounted on the column group from bottom to top in order of inner diameter from small to large; The positioning sleeve assembly includes more than two positioning sleeves, which correspond to more than two clamping seats one by one, and are used to position different clamping seats; Each of the clamping seats comprises two clamping plates, the two clamping plates have the same structure and size and are both semicircular, radial ears and tangential ears are respectively provided at both ends of each clamping plate, a radial through hole C perpendicular to the extension direction of the radial ear is provided on the radial ear, and an axial through hole is provided on the tangential ear, the two clamping plates are arranged opposite to each other to form a circular ring, the two tangential ears are overlapped and sleeved on a column (3), and the two radial ears are arranged opposite to each other and are clamped and fixed by clamping screws; The lifting rod is a rotating rod (10), and the lifting screw assembly includes a lifting screw (12), a lifting screw mounting base (16) and a lifting screw mounting base cover (17). The lifting screw mounting base (16) is a sleeve structure with an opening at one end and a through hole processed at the other end. A threaded through hole A is provided at the center of the inner bottom surface, and a threaded through hole C is provided at the center of the lifting screw mounting base cover (17). After the lifting screw mounting base cover (17) and the lifting screw mounting base (16) are fixed, the threaded through hole The hole A and the threaded through hole C are on the same axis and the diameter of the threaded through hole C is larger than that of the threaded through hole A. The screw rod (11) is a stepped shaft on which an external thread is arranged. The diameter of the upper end thereof is consistent with the diameter of the threaded through hole C, and the diameter of the lower end thereof is consistent with the diameter of the threaded through hole A. After the lower end of the screw rod (11) passes through the threaded through hole C on the upper cover (17) of the lifting screw mounting seat and the threaded through hole A on the lifting screw mounting base (16) in sequence, the end portion thereof is threadedly connected with the hexagonal nut (15). The screw rod (11) ) has a stepped surface that abuts against the inner bottom surface of the lifting screw mounting base (16); a rotating rod (10) is installed at the upper end of the screw rod (11); the rotating rod (10) is used to apply a rotational torque to the screw rod (11); a cotter pin (14) is installed radially at the lower end of the screw rod (11) for axially limiting the hexagonal nut (15); and two or more through holes A and two through holes A are respectively provided on the inner bottom surface of the lifting screw mounting base (16) and the upper cover (17) of the lifting screw mounting seat, which are evenly distributed in the circumferential direction. The through hole B, through hole A and through hole B correspond to each other one by one. One end of the lifting screw (12) is provided with a shoulder and the other end is provided with an external thread. The lifting screw (12) passes through the through hole A of the lifting screw mounting base (16) and the through hole B of the lifting screw mounting base cover (17) in sequence, so that the end with the shoulder extends out of the through hole B and the shoulder is limited in the cavity between the lifting screw mounting base (16) and the lifting screw mounting base cover (17). The end with the external thread is used for threaded connection with the upper cover of the transformer; The column group comprises three columns (3) evenly distributed on the same circumference, and both ends of each column (3) are respectively threadedly connected to the tooling upper cover (2) and the tooling base (6); The upper cover removal device also includes an axial elastic retaining ring (8), which is sleeved on the column (3) where the axial through hole on the tangential ear piece of the uppermost clamping seat is located and contacts the upper end surface of the uppermost clamping seat, so as to limit the axial movement of the uppermost clamping seat.

2. The transformer cover removal device according to claim 1, characterized in that: A radial through hole A is provided at the upper end of the screw rod (11), and the rotating rod (10) is slidably engaged with the radial through hole A at the upper end of the screw rod (11).

3. The transformer cover removal device according to claim 2, characterized in that: Bosses are provided at both ends of the rotating rod (10) to prevent the rotating rod (10) from sliding out of the radial through hole A at the upper end of the screw rod (11).

4. The transformer cover removal device according to claim 1, characterized in that: The tooling upper cover (2) is connected to the upper end of each column (3) via a cap nut (9).

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