Buffer of on-load tap-changer

Abstract

The utility model relates to the technical field of switches, and discloses a buffer of an on-load tap-changer, which comprises a main body assembly. The main body assembly comprises a box body, and the inner side wall of the box body is slidably connected with a mounting plate; the sliding rod is fixedly connected to the inner side wall of the box body; the two moving blocks are connected to the outer side wall of the sliding rod in a sliding manner and are symmetrically arranged; the springs are arranged on all the moving blocks; the on-load tap-changer transfer device has the advantage that the universal wheels are convenient to store after the on-load tap-changer is moved, when the on-load tap-changer is transferred, an operator starts two servo motors to drive two rotating rods to rotate, the two rotating rods drive two racks to move towards the ground, and the on-load tap-changer is transferred. And the limiting plate drives the bottom universal wheels to be in contact with the ground, the on-load tap-changer can be moved conveniently, after the on-load tap-changer is moved to a designated position, the universal wheels can be retracted into the mounting box only by controlling the servo motor to rotate reversely, and the problem that the universal wheels are inconvenient to store after the device is moved is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to switch technical field, concretely is a kind of buffer of on-load tap changer. BACKGROUND

[0002] On-load tap changer refers to a kind of operation under the excitation of transformer or load, to change the tap connection position of transformer winding voltage regulating device.Its basic principle is to realize the switching between tap in transformer winding under the condition of ensuring no interruption of load current, to change the number of turns of winding, i.e.the voltage ratio of transformer, to ultimately achieve the purpose of voltage regulation.

[0003] When on-load tap changer is moved, multiple workers lift and move it, and the prior art moves the device by using universal wheels, and avoids damage to on-load tap changer by buffer device when moving, but in actual use process, after moving, the device needs to be lifted, and then universal wheels are stored, so that the storage method is inconvenient, and the practicality is lacked. UTILITY MODEL CONTENT

[0004] (1) technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides a kind of buffer of on-load tap changer, with the advantage that universal wheels are conveniently stored after moving on-load tap changer, and the problem that universal wheels are inconvenient to store after moving the device is solved.

[0006] (2) technical scheme

[0007] To achieve the above purpose, the utility model provides the following technical scheme: a kind of buffer of on-load tap changer, including main component;The main component includes box, and the inner side wall of box is slidably connected with mounting plate;Slide bar is fixedly connected to the inner side wall of box;Moving block is slidably connected to the outer side wall of slide bar, and two are symmetrically arranged;Spring is arranged on each moving block;Connecting rod, each top of moving block is hingedly connected with connecting rod, each connecting rod is hingedly connected to the bottom of mounting plate;Control box is fixedly connected to the top of mounting plate;Two groups of storage assemblies are arranged on the box, each storage assembly includes: mounting box is fixedly connected to the bottom of box;Rotating rod is inserted into the inside of box and is rotatably connected with box;Gear one is symmetrically arranged on the outer side wall of rotating rod;Rack is arranged on each gear one;Limiting plate is fixedly connected to the front surface of each rack, and each limiting plate is slidably connected with the mounting box;Servo motor is fixedly connected to the outer side wall of box, and the output end is fixedly connected with rotating rod;Universal wheel is fixedly connected with universal wheel on the bottom of each rack.

[0008] Preferably, each of the rack outer side walls is fixedly connected with a baffle.

[0009] Preferably, each of the rack top portions is fixedly connected with a limiting block.

[0010] Preferably, the box is provided with a linkage assembly, the linkage assembly comprises gear twos, each of the rotating rod outer side walls is fixedly connected with a gear two; a synchronous belt is arranged on the gear twos, and the two gear twos are engaged with the synchronous belt.

[0011] Preferably, the box outer side wall is fixedly connected with a protective shell, and the two rotating rods are rotationally connected with the protective shell.

[0012] Preferably, each of the universal wheels is provided with a spring shock absorber.

[0013] (Three) beneficial effects

[0014] Compared with the prior art, the utility model provides a buffer of on-load tap-changer, has the following beneficial effects:

[0015] The utility model has the advantage that the universal wheel is convenient to store after the on-load tap-changer is moved, when the on-load tap-changer is shifted, the operating personnel starts two servo motors to drive two rotating rods to rotate, makes two rotating rods drive two racks to move to the ground, thereby makes the limiting plate drive the bottom universal wheel to contact with the ground, is convenient for the on-load tap-changer to move, after moving to the specified position, the operating personnel only needs to control servo motor reverse rotation, can store the universal wheel to the installation box inside, solved the problem that the universal wheel is inconvenient to store after the device moves. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structure schematic diagram of the utility model;

[0017] Figure 2 It is the structure schematic diagram of the utility model and does not contain the protective shell;

[0018] Figure 3 It is the structure schematic diagram of the utility model and is cut open to the installation box and the box;

[0019] Figure 4 It is the structure schematic diagram of the utility model and does not contain the installation plate.

[0020] In the drawing:

[0021] 1, main component assembly; 11, box; 12, installation plate; 13, sliding rod; 14, moving block; 15, spring; 16, connecting rod; 17, control box;

[0022] 2, storage assembly; 21, mounting box; 22, rotating rod; 23, gear one; 24, rack; 25, limiting plate; 26, servo motor; 27, universal wheel;

[0023] 3, linkage assembly; 31, gear two; 32, synchronous belt;

[0024] 5, spring shock absorber; 6, baffle; 7, protective shell; 8, limiting block. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] Embodiment one

[0027] Reference Figures 1-4 A buffer of on-load tap changer, comprising a main body assembly 1; the main body assembly 1 comprises a box body 11, an installation plate 12 is slidably connected to the inner side wall of the box body 11; a sliding rod 13 is fixedly connected to the inner side wall of the box body 11; a moving block 14 is slidably connected to the outer side wall of the sliding rod 13, and two moving blocks 14 are symmetrically arranged; a spring 15 is arranged on each moving block 14; a connecting rod 16 is hingedly connected to the top of each moving block 14, and each connecting rod 16 is hingedly connected to the bottom of the installation plate 12; a control box 17 is fixedly connected to the top of the installation plate 12; two groups of storage assemblies 2 are arranged on the box body 11, and each storage assembly 2 comprises: a mounting box 21 fixedly connected to the bottom of the box body 11; a rotating rod 22 inserted into the inside of the box body 11 and rotatably connected with the box body 11; a gear one 23 symmetrically arranged on the outer side wall of the rotating rod 22; a rack 24 arranged on each gear one 23; a limiting plate 25 fixedly connected to the front surface of each rack 24, and each limiting plate 25 is slidably connected with the mounting box 21; a servo motor 26 fixedly connected to the outer side wall of the box body 11, and the output end is fixedly connected with the rotating rod 22; a universal wheel 27 fixedly connected to the bottom of each rack 24; a baffle 6 fixedly connected to the outer side wall of each rack 24; and a limiting block 8 fixedly connected to the top of each rack 24.

[0028] When in use, the on-load tap-changer is arranged in the control box 17, when the on-load tap-changer is transferred, the operator starts two servo motors 26, so that the two servo motors 26 drive two rotating rods 22 to rotate, so that the two rotating rods 22 drive two gear wheels I 23 to rotate, when the gear wheel I 23 rotates, the gear rack 24 is driven to move at the same time, so that the gear rack 24 moves to the ground under the limiting of the limiting plate 25, so that the limiting plate 25 drives the bottom universal wheel 27 to contact the ground, which is convenient for moving the on-load tap-changer, when moving, if the ground is bumpy, the control box 17 drives the mounting plate 12 to move up and down, so that the mounting plate 12 drives the two moving blocks 14 to slide on the slide rod 13 through the two connecting rods 16, so that the two moving blocks 14 dampen the device through the two springs 15, after moving to the specified position, the operator only needs to control the servo motor 26 to rotate reversely, so that the universal wheel 27 can be retracted into the mounting box 21, which is simple in operation and improves the practicability of the device; when the gear rack 24 moves, the baffle 6 moves at the same time, so that the baffle 6 can cover the groove at the bottom of the mounting box 21, which avoids that stones, gravel and the like enter the mounting box 21 when the device moves, so that the operator is not convenient to clean, thereby improving the work efficiency of the operator; when the gear rack 24 moves, the baffle 6 moves at the same time, when the baffle 6 contacts the gear wheel I 23, it will not move any more, so that the moving range of the gear rack 24 is limited, which avoids that the gear rack 24 is separated from the gear wheel I 23 due to improper operation of the operator, so that the device cannot be used normally, thereby improving the safety of the device.

[0029] Embodiment two

[0030] Reference Figures 1-4 On the basis of the embodiment one, the linkage function is added;

[0031] The box body 11 is provided with a linkage assembly 3, the linkage assembly 3 comprises: gear wheels II 31, each rotating rod 22 is fixedly connected with a gear wheel II 31 on the outer side wall; a synchronous belt 32 is arranged on the gear wheels II 31, and the two gear wheels II 31 are engaged with the synchronous belt 32; the box body 11 is fixedly connected with a protective shell 7 on the outer side wall, and the two rotating rods 22 are rotatably connected with the protective shell 7; each universal wheel 27 is provided with a spring shock absorber 5.

[0032] In use, the operator starts one side servo motor 26, so that the servo motor 26 drives one side rotating rod 22 to rotate, so that the rotating rod 22 drives the gear two 31 on it to rotate at the same time, and then the gear two 31 drives the other side gear two 31 through the synchronous belt 32 to rotate at the same time, so that the other side gear two 31 drives the other side rotating rod 22 to rotate, so that the device does not need to install two servo motors 26, and only one servo motor 26 can drive two rotating rods 22 to rotate at the same time, thereby saving the production cost and use cost of the device; When the device is used, the protective shell 7 covers the two gear two 31 and the synchronous belt 32 inside, so as to avoid the stones splashing on the road to the meshing part of the gear two 31 and the synchronous belt 32, thereby causing the device to be stuck, and the safety of the device is improved; The spring shock absorber 5 on the universal wheel 27 can further buffer and absorb the control box 17 when the road surface is bumpy, and further avoid the damage of the control box 17 and the internal load tap changer.

[0033] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A buffer of a load tap changer, comprising a main body assembly (1); the main body assembly (1) comprises a box (11), an installation plate (12) is slidably connected to the inner side wall of the box (11); a slide rod (13) is fixedly connected to the inner side wall of the box (11); a moving block (14) is slidably connected to the outer side wall of the slide rod (13), and two moving blocks (14) are symmetrically arranged; a spring (15) is arranged on each moving block (14); a connecting rod (16) is hingedly connected to the top of each moving block (14), and each connecting rod (16) is hingedly connected to the bottom of the installation plate (12); a control box (17) is fixedly connected to the top of the installation plate (12); two groups of storage assemblies (2) are arranged on the box (11), and each group of storage assemblies (2) comprises: an installation box (21) is fixedly connected to the bottom of the box (11); a rotating rod (22) is inserted into the box (11) and is rotatably connected with the box (11); a gear one (23) is symmetrically arranged on the outer side wall of the rotating rod (22); a rack (24) is arranged on each gear one (23); a limiting plate (25) is fixedly connected to the front surface of each rack (24), and each limiting plate (25) is slidably connected with the installation box (21); a servo motor (26) is fixedly connected to the outer side wall of the box (11), and the output end is fixedly connected with the rotating rod (22); a universal wheel (27) is fixedly connected to the bottom of each rack (24). A baffle (6) is fixedly connected to the outer side wall of each rack (24). A limiting block (8) is fixedly connected to the top of each rack (24). A linkage assembly (3) is arranged on the box (11), and the linkage assembly (3) comprises: a gear two (31) is fixedly connected to the outer side wall of each rotating rod (22); a synchronous belt (32) is arranged on the gear two (31), and the two gear twos (31) are meshed with the synchronous belt (32). The outer side wall of the box (11) is fixedly connected with a protective shell (7), and the two rotating rods (22) are rotatably connected with the protective shell (7). A spring shock absorber (5) is arranged on each universal wheel (27). ​ characterized in that ​ ​ ​ ​ ​ ​ ​ ​ 2. A snubber for a load tap changer according to claim 1, characterised in that: ​ 3. A snubber for a load tap changer according to claim 2, characterised in that: ​ 4. A snubber for a load tap changer according to claim 1, characterised in that: ​ ​ ​ 5. A snubber for a load tap changer according to claim 1, characterized in that: ​ 6. A snubber for a load tap changer according to claim 1, characterized in that: ​

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