On-load tap-changer assembling tool

Abstract

The utility model relates to the field of tool clamps, in particular to an on-load tap-changer assembly tool which comprises a supporting frame, a base, a base and a clamping device. The supporting disc is rotationally arranged on the supporting frame; a placing area is further arranged on the supporting bat and is used for placing the rack body; the stand column is vertically arranged on the supporting disc; a plurality of stand columns are arranged and surround the peripheral side of the placing area; and the supporting arm is arranged on the stand column and is used for supporting the mounting disc. When the core structure is assembled, the frame body is firstly placed in the placing area of the supporting disc, and then the mounting disc is placed on the inner side of the frame body and is supported through the supporting arms. By means of the rotatable supporting disc and the stand column and the supporting arm which are arranged in the surrounding mode, a multi-angle adjustable operation platform is provided for assembling of the core structure, a worker can operate the supporting disc to rotate, the core structure rotates along with the supporting disc, the worker can conveniently install parts at different positions, and therefore the assembling efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of tooling fixtures, and in particular, to a on-load tap-changer assembly tooling fixture. Background Art

[0002] The on-load tap-changer is a key device for on-load voltage regulation of a transformer. It can operate under the excitation or load state of the transformer. By changing the position of the tap taken out from the transformer winding, the effective turns ratio is adjusted to achieve the regulation of the output voltage without interrupting the load current. It plays important roles in the power system such as stabilizing the voltage of the load center, regulating the reactive power flow, and increasing the flexibility of power system dispatching.

[0003] A common on-load tap-changer usually consists of a switching switch and a tap selector. Among them, the core of the tap selector is the main working mechanism, which is composed of a frame body, a contact mounting disc, moving and static contacts and related components. The frame body mainly includes a chassis and side plates, and the contact mounting plate is connected to the side plates.

[0004] Since there are many components in the core structure, and the frame body and the contact mounting disc are both made of metal materials and have large weights, there is a problem of inconvenient assembly. Specifically, in the traditional assembly scheme in the past, more than 2 people need to cooperate to complete the assembly work. During the operation, the personnel need to rotate around the frame body. When installing components at different heights, the personnel need to squat, bend down and stand multiple times, which invisibly increases the labor intensity of the assembly personnel. Utility Model Content

[0005] In order to improve the assembly efficiency of the on-load tap-changer core structure and reduce the labor intensity, this application provides an on-load tap-changer assembly tooling fixture.

[0006] The on-load tap-changer assembly tooling fixture provided by this application adopts the following technical solutions:

[0007] An on-load tap-changer assembly tooling fixture, comprising:

[0008] A support frame;

[0009] A support disc, the support disc is rotatably arranged on the support frame; a placement area is also arranged on the support disc and is used for placing the frame body;

[0010] Columns, vertically arranged on the support disc; there are multiple columns and they surround the periphery of the placement area;

[0011] Support arms, the support arms are arranged on the columns and are used for supporting the mounting disc.

[0012] By adopting the above technical solution, when assembling the core structure, first place the frame on the placement area of the support disk, and then place the mounting disk inside the frame and support the mounting disk through the support arms. The rotatable support disk, the surrounding columns and the support arms provide an operation platform with multi-angle adjustment for the assembly of the core structure. The staff can operate the support disk to rotate, and the core structure will rotate accordingly, so as to facilitate the staff to install the components at different positions, thereby improving the assembly efficiency.

[0013] Preferably, the support disk includes a reference disk and a lifting disk; the reference disk is rotatably connected to the support frame, an installation groove for placing the lifting disk is formed on the reference disk, and the placement area is located above the lifting disk;

[0014] A jacking mechanism is further arranged on the support frame, and the jacking mechanism is located below the lifting disk and is used to drive the lifting disk to lift and lower.

[0015] By adopting the above technical solution, the staff can adjust the height of the lifting disk according to needs, so as to facilitate the installation of the mounting disk and related components at different heights, and ensure the accuracy and stability of the assembly.

[0016] Preferably, a turntable rotatably connected to the support disk is arranged on the support disk, and the placement area is located above the turntable.

[0017] By adopting the above technical solution, through the rotary motion of the turntable, it is convenient to perform separate rotation adjustment on the frame for easy assembly.

[0018] Preferably, a positioning key is arranged on the support disk; a plurality of positioning grooves are formed on the circumferential side of the turntable for cooperating with the positioning key.

[0019] By adopting the above technical solution, the positioning key can be inserted into the corresponding positioning groove, so as to lock the turntable and ensure the stability and safety of the assembly process.

[0020] Preferably, a linear bearing is arranged on the support disk, the linear bearing has a central hole, a positioning column is inserted into the central hole, a positioning hole is arranged on the support frame, and the positioning column is inserted and matched with the positioning hole.

[0021] By adopting the above technical solution, the relative fixation of the support disk and the support frame can be maintained through the cooperation of the positioning column and the positioning hole, so as to ensure the stability of each component of the core structure during the assembly process.

[0022] Preferably, a support is arranged on the column, the support arm is rotatably connected to the support, and its rotating shaft is arranged vertically.

[0023] By adopting the above technical solution, the support arm can be rotated and adjusted in the horizontal plane, and the lifting of the core structure can be avoided by rotating the support arm. After the core assembly is completed, the support arm can also be rotated to avoid the core structure so that the core structure can be normally removed from the tooling.

[0024] Preferably, a ball screw is screwed on the support, and a plurality of limiting grooves for cooperating with the ball screw are formed on the support arm, and the plurality of limiting grooves are arranged around the rotating shaft of the support arm.

[0025] By adopting the above technical solution, when the support arm rotates to a specific position, the ball screw can be embedded in the corresponding limiting groove, thereby realizing the precise fixation of the position of the support arm.

[0026] Preferably, a plurality of supports on the same column are arranged vertically, and a plurality of corresponding support arms are provided.

[0027] By adopting the above technical solution, a plurality of support arms are vertically distributed at different height positions of the column, so as to facilitate the support of a plurality of mounting plates.

[0028] Preferably, a positioning block for cooperating with the mounting plate is arranged on the support arm.

[0029] By adopting the above technical solution, the positioning block can cooperate with the positioning groove on the mounting plate, thereby ensuring the installation accuracy of the mounting plate.

[0030] Preferably, it further includes a lifting table, and the support frame is arranged on the lifting table; the lifting table is provided with a control switch for controlling the lifting and lowering of the lifting table.

[0031] By adopting the above technical solution, a cylinder or an oil cylinder is built in the lifting table, and the height of the tooling is lifted accordingly, which can adapt to workers of different heights and improve the convenience of use.

[0032] In summary, the present application includes at least one of the following beneficial technical effects:

[0033] 1. Since the present application adopts a rotatable support disk and the surrounding columns and support arms, which can respectively support the frame and the mounting plate of the core structure, the core structure of the on-load tap-changer can be adjusted at multiple angles on the tooling, simplifying the assembly process and significantly improving the assembly efficiency;

[0034] 2. In the present application, a jacking mechanism and a slewing mechanism are preferably adopted. By driving the lifting of the lifting disk and the slewing of the turntable, the flexibility and convenience of assembly are further improved, and the labor intensity of the operator is reduced. Brief Description of the Drawings

[0035] Figure 1It is a schematic structural diagram of the core structure in the embodiment of the present application;

[0036] Figure 2 It is a schematic structural diagram of the on-load tap-changer assembly tooling in the embodiment of the present application;

[0037] Figure 3 It is a sectional view of the on-load tap-changer assembly tooling in the embodiment of the present application, and is mainly used to show the structures of the reference disk, the lifting disk, the turntable and the jacking mechanism;

[0038] Figure 4 It is a schematic structural diagram of the column, the support, the support arm and the positioning block in the embodiment of the present application;

[0039] Figure 5 It is a schematic diagram of the cooperation relationship between the core structure and the assembly tooling in the embodiment of the present application.

[0040] Reference signs in the drawings: 1, support frame; 11, slewing bearing; 2, support disk; 21, reference disk; 22, lifting disk; 23, turntable; 231, positioning groove; 24, positioning key; 25, linear bearing; 26, positioning column; 3, column; 31, support; 32, ball screw; 4, support arm; 41, limit groove; 42, positioning block; 5, jacking mechanism; 6, lifting platform; 7, core structure; 71, frame body; 72, mounting disk; 721, connection groove. Detailed implementation manners

[0041] The following will further describe the present application in detail with reference to the attached Figures 1-5 drawings.

[0042] This embodiment discloses an on-load tap-changer assembly tooling, which is mainly used for assembling the core structure 7 of the on-load tap-changer. As Figure 1 shown, the core structure 7 includes a frame body 71, a plurality of mounting disks 72 and other related components. The frame body 71 further includes a plurality of vertical rods. The mounting disks 72 are located between the plurality of vertical rods, and the mounting disks 72 and the vertical rods are connected by bolts. Finally, the related components are installed on the mounting disks 72. During assembly, some of the vertical rods need to be placed vertically, and the plurality of mounting disks 72 are installed and connected to the vertical rods in sequence from bottom to top. Subsequently, the remaining vertical rods are fixedly connected to the mounting disks.

[0043] Referring to Figure 2 and Figure 3In order to effectively improve the assembly efficiency of the core structure 7, the on-load tap changer assembly tool of the present application specifically includes a support frame 1, a support plate 2, a column 3 and a support arm 4. The support plate 2 is rotatably connected to the support frame 1 through a slewing support bearing 11 and can rotate in the horizontal direction. A placement area is provided on the support plate 2 for placing the frame body 71. The column 3 is vertically arranged on the support plate 2, and a plurality of columns 3 surround the circumference of the placement area. The support arm 4 is arranged on the column 3 for supporting the mounting plate 72. A plurality of support arms 4 are provided on the same column 3 and are vertically distributed at different heights of the column 3 to facilitate supporting multiple mounting plates 72.

[0044] When assembling the core structure 7, first place the frame 71 in the placement area of the support plate 2, then place the mounting plate 72 inside the frame 71 and support the mounting plate 72 through the support arm 4. Through the rotatable support plate 2 and the surrounding columns 3 and support arms 4, a multi-angle adjustable operating platform is provided for the assembly of the core structure 7. The staff can operate the support plate 2 to rotate, and the core structure 7 rotates accordingly, so that the staff can install parts at different positions, thereby improving the assembly efficiency.

[0045] In order to lock the support plate 2 and keep the frame 71 stable, a linear bearing 25 is provided on the support plate 2, and the linear bearing 25 has a center hole, and a positioning column 26 is inserted in the center hole. A positioning hole is provided on the support frame 1, and the positioning column 26 is plugged into the positioning hole. Therefore, the support plate 2 and the support frame 1 can be relatively fixed by the cooperation of the positioning column 26 and the positioning hole.

[0046] Reference Figure 3 Further, the support plate 2 includes a reference plate 21 and a lifting plate 22. The reference plate 21 is rotatably connected to the support frame 1, and a mounting groove is provided on the reference plate 21 for placing the lifting plate 22, and the placement area is arranged above the lifting plate 22. A lifting mechanism 5 is also arranged on the support frame 1, and the lifting mechanism 5 is located below the lifting plate 22 and is used to drive the lifting plate 22 to perform lifting motion.

[0047] Therefore, by adding the lifting plate 22 and the lifting mechanism 5, the frame 71 can also be adjusted in the vertical direction, further improving the flexibility of assembly. In actual operation, the staff can adjust the height of the lifting plate 22 as needed to facilitate the installation of the mounting plate 72 and related components at different heights, and ensure the accuracy and stability of assembly. In the embodiment of the present application, the lifting mechanism 5 can be a cylinder.

[0048] Furthermore, a turntable 23 can be added to the lifting plate 22. The turntable 23 is rotatably connected to the lifting plate 22 so that it can rotate in the horizontal direction. The placement area is correspondingly adjusted above the turntable 23. The frame 71 can be installed on the turntable 23. Through the rotary motion of the turntable 23, it is convenient to perform individual rotation adjustment on the frame 71.

[0049] In order to relatively fix the turntable 23 and the reference plate 21 to facilitate the assembly of the core structure 7, a positioning key 24 is also provided on the reference plate 21, and a plurality of positioning grooves 231 are opened on the circumferential side of the turntable 23 for cooperating with the positioning key 24. When the turntable 23 rotates to a specific position, the positioning key 24 can be inserted into the corresponding positioning groove 231, thereby realizing the locking of the turntable 23 and ensuring the stability and safety of the assembly process. When the turntable 23 needs to rotate, the positioning key 23 can be removed from the reference plate 21.

[0050] In the embodiment of the present application, the rotary mechanism can also be cancelled according to actual needs, and the support plate 2 can also be used to realize the assembly of the core structure 7.

[0051] Refer to Figure 4 In this embodiment, the structure of the support arm 4 is further optimized. Specifically, a support 31 is provided on the column 3, and the support arm 4 is rotatably connected to the support 31, and its rotating shaft is arranged vertically. This structure enables the support arm 4 to be rotationally adjusted in the horizontal plane, so as to better adapt to the assembly requirements of different positions and angles.

[0052] In addition, the lifting of the core structure 7 can be avoided by rotating the support arm 4. After the core assembly is completed, the support arm 4 can also be rotated to avoid the core structure 7 so that the core structure 7 can be normally removed from the tooling.

[0053] In order to further improve the adjustment accuracy and stability of the support arm 4, a ball screw 32 is also screwed on the support 31, and a plurality of limit grooves 41 for cooperating with the ball screw 32 are opened on the support arm 4. These limit grooves 41 are arranged around the rotating shaft of the support arm 4. When the support arm 4 rotates to a specific position, the ball screw 32 can be embedded into the corresponding limit groove 41, thereby realizing the precise fixation of the position of the support arm 4.

[0054] Preferably, multiple ball screws 32 can also be provided, and only one limit groove 41 is provided. By cooperating the positioning groove 231 with different ball screws 32, the fixation of the support arm 4 can also be realized.

[0055] Refer to Figure 4 and Figure 5, in this embodiment, the support arm 4 is further improved. Specifically, a positioning block 42 is also provided on the support arm 4. Since a connection groove 721 is formed at the connection part between the mounting disk 72 and the vertical rod, the vertical rod can be installed in the connection groove 721. In the initial stage of the core structure assembly, some vertical rods are not placed on the tooling, so the connection grooves 721 corresponding to these vertical rods are in a vacant state. The positioning block 42 can cooperate with the connection groove 721 to position the mounting disk 72 and prevent offset or sliding during the assembly process, thereby improving the assembly accuracy and reliability.

[0056] In addition, in order to enable the tooling to achieve overall lifting to facilitate adaptation to workers of different heights and improve the convenience of use, the on-load tap-changer assembly tooling further includes a lifting platform 6. The support frame 1 is installed on the lifting platform 6. The lifting platform 6 is internally provided with a cylinder or an oil cylinder and is provided with a control switch, and thereby realizes the lifting of the height of the tooling.

[0057] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A on-load tap-changer assembly tooling, characterized in that Comprising: Support frame (1); Support plate (2), which is rotatably arranged on the support frame (1); a placement area is also arranged on the support plate and is used for placing the frame body (71); Vertical columns (3), which are vertically arranged on the support plate (2); a plurality of the vertical columns (3) are arranged and surround the periphery of the placement area; Support arms (4), which are arranged on the vertical columns (3) and are used for supporting the mounting plate (72).

2. The on-load tap-changer assembly tooling according to claim 1, wherein, The support plate (2) includes a reference plate (21) and a lifting plate (22); the reference plate (21) is rotatably connected to the support frame (1), and a mounting groove for placing the lifting plate (22) is formed on the reference plate (21), and the placement area is located above the lifting plate (22); A jacking mechanism (5) is further arranged on the support frame (1), and the jacking mechanism (5) is located below the lifting plate (22) and is used for driving the lifting plate (22) to lift and lower.

3. The on-load tap-changer assembly tooling according to claim 1, characterized in that, A turntable (23) rotatably connected to the support plate (2) is arranged on the support plate (2), and the placement area is located above the turntable (23).

4. The on-load tap-changer assembly tooling according to claim 3, wherein, A positioning key (24) is arranged on the support plate (2); a plurality of positioning grooves (231) are formed on the periphery of the turntable (23) for cooperating with the positioning key (24).

5. The on-load tap-changer assembly tooling according to claim 1, characterized in that A linear bearing (25) is arranged on the support plate (2), the linear bearing (25) has a central hole, a positioning column (26) is inserted into the central hole, a positioning hole is arranged on the support frame (1), and the positioning column (26) is inserted and cooperated with the positioning hole.

6. The on-load tap-changer assembly tooling according to claim 1, wherein A support (31) is arranged on the vertical column (3), the support arm (4) is rotatably connected to the support (31), and its rotating shaft is vertically arranged.

7. The on-load tap-changer assembly tooling according to claim 6, characterized in that, A ball screw (32) is screwed on the support (31), a plurality of limiting grooves (41) cooperating with the ball screw (32) are formed on the support arm (4), and the plurality of limiting grooves (41) are arranged around the rotating shaft of the support arm (4).

8. The on-load tap-changer assembly tooling according to claim 6, wherein, A plurality of supports (31) on the same vertical column (3) are vertically arranged, and a plurality of corresponding support arms (4) are arranged.

9. The on-load tap-changer assembly tooling according to claim 1, characterized in that, A positioning block (42) for cooperating with the mounting plate (72) is arranged on the support arm (4).

10. The on-load tap-changer assembly tooling according to claim 1, characterized in that, A lifting table (6) is further included, and the support frame (1) is arranged on the lifting table (6); the lifting table (6) has a control switch for controlling the raising and lowering of the lifting table (6).

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