CN105196205A - Three-dimensional triangular winding transformer core hydraulic assembly station - Google Patents

Abstract

The invention relates to a three-dimensional triangular winding transformer core hydraulic assembly station which is composed of a workbench (1), an upper template (2), a lower positioning template (11), horizontal clamping oil cylinders (3) and a vertical oil cylinder (5). The workbench (1) is in an equilateral triangle shape. The three corners of the workbench (1) are each provided with a support (10). The three supports (10) are each provided with one horizontal clamping oil cylinder (3). The three horizontal clamping oil cylinders (3) are each provided with a mobile guide rod (6). The three-dimensional triangular winding transformer core hydraulic assembly station has the advantages that the structure is simple, application is convenient, raw materials are saved, and the cost is reduced.

Description

Three-dimensional triangular winding transformer core hydraulic assembly table

technical field

The invention relates to a simple-structured and conveniently-used assembly table for processing a three-dimensional triangular wound iron core used in a transformer.

Background technique

The core structure of the traditional transformer is planar. The current triangular coiled core transformer breaks through the traditional structure. Three coiled cores with the same rectangular semicircular section are combined to form a three-dimensional three-phase transformer core, so that the magnetic circuit of the three-phase core is completely Symmetrical, reluctance is greatly reduced, excitation current and no-load loss are significantly reduced. It is a high-efficiency and energy-saving transformer that uses traditional materials, but has smaller operating noise and more compact structure. It has been popularized and applied in power distribution networks, improving Economic operation level of distribution network.

In the theoretical design of wound core transformers, the triangular arrangement of wound core transformers has obvious advantages in saving materials and electricity due to the balanced three-phase magnetic circuit, shortened iron yoke, and seamless core. However, in the specific production, due to the gap between the two halves of the core frame in the same phase, the magnetic field lines cannot communicate, the magnetic flux density of the two halves of the core column section cannot be adjusted by itself, the maximum magnetic density increases, and the loss increases; the connection of the core frame follows the transformer. Due to the delicacy of the grain-oriented silicon steel sheet in the existing technology of ribbon winding and clamping and fixing, the clamping force cannot be too large, and the iron core will tilt and vibrate slightly, and friction and misalignment will occur between the iron core frames, resulting in The short circuit between the iron core sheets increases the loss and the performance of the transformer is extremely unstable. Therefore, in order to overcome the shortcomings of the existing technology, after repeated experiments, a three-dimensional triangular wound iron core hydraulic assembly platform is specially developed.

Contents of the invention

The technical problem to be solved by the present invention is to provide a widely used triangular wound iron core hydraulic assembly platform used in power grid engineering.

The main technical features of the present invention are: it is composed of a workbench, an upper formwork, a lower positioning formwork, a horizontal clamping oil cylinder and a vertical oil cylinder, wherein the workbench is in the shape of an equilateral triangle, and a support is respectively installed at the three corners of the workbench , a horizontal clamping oil cylinder is installed on the three supports, a moving guide rod is installed on the three horizontal clamping oil cylinders, a vertical oil cylinder is installed vertically at the center of the back of the workbench, and a positioning module is fixed at the center of the front of the workbench for positioning There is a through hole on both the module and the workbench. The piston rod installed in the vertical oil cylinder can move up and down freely through the lower positioning template and the through hole on the workbench. The top of the piston rod is covered with an upper template, and the periphery of the piston rod is covered with a triangular iron core. A cross is respectively installed in the directions corresponding to the outer ring of the triangular iron core and the three horizontal clamping oil cylinders, and clamping blocks are installed on the three crosses.

The main feature of the present invention is that the triangular iron core is composed of a cylinder of the triangular iron core and an arc section of the triangular iron core.

The invention has the beneficial effects of simple structure, convenient application, saving raw materials and reducing cost.

Description of drawings:

Fig. 1 is a top view of the product of the present invention;

Fig. 2 is a sectional view of the product of the present invention;

Fig. 3 is the front view of the product of the present invention;

Fig. 4 is a structure diagram of a triangular iron core in the product of the present invention.

Detailed ways:

The present invention will be described in further detail below in conjunction with accompanying drawing and specific embodiment

As shown in Figure 2 and Figure 3: the three-dimensional triangular winding transformer core hydraulic assembly platform is composed of a workbench 1, an upper template 2, a lower positioning template 11, a horizontal clamping cylinder 3 and a vertical cylinder 5, and the workbench 1 is equilateral Triangular shape, a support 10 is installed at the three corners of the workbench 1, a horizontal clamping oil cylinder 3 is installed on the three supports 10, and a moving guide rod 6 is installed on the three horizontal clamping oil cylinders 3, 6 is the moving guide rod of three horizontal clamping oil cylinders 3, which acts as a guide and improves the stability during clamping. A vertical oil cylinder 5 is vertically installed at the center of the back of the workbench 1, and a positioning module 11 is fixed at the center of the front of the workbench 1. Both the positioning module 11 and the workbench 1 are provided with a through hole, the piston rod 12 installed in the vertical cylinder 5 can freely move up and down through the through hole on the lower positioning template 11 and the workbench 1, and the top of the piston rod 12 is covered with an upper template 2 A hollow triangular iron core 13 is set on the periphery of the piston rod 12. A cross 9 is respectively installed on the outer ring of the triangular iron core 13 in the direction corresponding to the three horizontal clamping oil cylinders 3. Clamping blocks 8 are installed on the three crosses 9, and the triangular iron core 13 consists of a cylinder 4 of a triangular iron core and an arc section 7 of a triangular iron core.

Clamping operation steps: start the vertical oil cylinder 5, set the upper template 2 on the top of the piston rod of the oil cylinder 5, and start three horizontal clamping oil cylinders 3 at the same time, and press it. Clamp the strapping steel strips on the three cylindrical surfaces of the cylinder 4 of the triangular iron core, and put two strapping steel strips on each cylindrical surface. After the assembly is completed, the piston rod of the oil cylinder 5 falls, the upper template 2 is taken out, and the oil cylinder 3 is returned and hoisted away. The assembled transformer core is waiting for the assembly of the next core. The positioning module 11 is fixed on the workbench 1, and the upper formwork 2 and the positioning module 11 are used in pairs, and play a positioning role when the iron core is pressed. Different size iron cores can replace the upper formwork 2 and the lower formwork 11 of different sizes.

Clamping block 8 is aluminum alloy material among Fig. 3, and clamping block 8 can be adjusted up and down, left and right according to product size, and clamping block 8 slides in cross 9 waist-shaped grooves when adjusting, fixes with screw after adjusting suitable distance.

Claims (2)

1. Three-dimensional triangular volume transformer core hydraulic assembly platform, characterized in that it is composed of a workbench (1), an upper template (2), a lower positioning template (11), a horizontal clamping cylinder (3) and a vertical cylinder (5), Wherein the workbench (1) is in the shape of an equilateral triangle, and a support (10) is respectively installed at three corners of the workbench (1), and a horizontal clamping oil cylinder (3) is installed on the three support (10). , three horizontal clamping cylinders (3) are equipped with moving guide rods (6), a vertical cylinder (5) is vertically installed at the center of the back of the workbench (1), and a positioning module is fixed at the center of the front of the workbench (1) (11), the positioning module (11) and the workbench (1) are all provided with a through hole, and the piston rod (12) installed in the vertical oil cylinder (5) passes through the lower positioning template (11) and the workbench (1). The through hole can move up and down freely, the top of the piston rod (12) is covered with an upper template (2), the periphery of the piston rod (12) is covered with a triangular iron core (13), and the outer ring of the triangular iron core (13) is connected with three horizontal clamping oil cylinders ( 3) A cross (9) is respectively installed in the corresponding direction, and clamping blocks (8) are installed on the three crosses (9). 2. The three-dimensional triangular winding transformer core hydraulic assembly platform according to claim 1, characterized in that: the triangular core (13) is composed of a cylinder (4) of the triangular core and an arc section (7) of the triangular core.