Butterfly Valve For Locomotive Traction Transformer

The butterfly valve is a butterfly valve used in an electric locomotive traction transformer oil circulation cooling device, especially for a new eight-axle train high-speed rail traction transformer.

Product Details

Butterfly Valve For Locomotive Traction Transformer


Product Overview

 The butterfly valve is a butterfly valve used in an electric locomotive traction transformer oil circulation cooling device, especially for a new eight-axle train high-speed rail traction transformer. The utility model comprises a valve body, a valve plate, a rotating shaft, a shaft head cover, a sealing member and a sealing groove. The flange surface on one side of the valve body is thick in the middle and thin on the side, and the other side is a flat structure; a reinforcing rib is extended in each of the left and right directions; the upper end of the shaft shaft is processed into a hexagonal shape, and the hexagonal shape is processed into a semi-hexagon shape at the top end; the shaft head cover has a waist-shaped counterbore, and the waist is sunken. Each of the bottoms of the holes has a counterbore corresponding to the lateral and longitudinal semicircular opening keys, which can be placed on the semi-hexagonal rotating shaft, and the shaft cap is fastened to the valve body. Through the structural improvement, the shaft head cover locks the rotating shaft and the valve piece, thereby improving the safety and reliability of the butterfly valve operation, and the weight of the valve body is reduced, the strength is increased, the cost is saved, and the vibration and leakage are reduced.


Product Overview

机车变压器金属蝶阀1蝶阀 2

                        Figure 1                                                      Figure 2


蝶阀3   蝶阀4       蝶阀5         蝶阀6

   Figure 3                                 Figure 4                                 Figure 5                                    Figure 6

 Figure 1 is a schematic view showing the structure of the butterfly valve;

  Figure 2 is a plan view of Figure 1;

  Figure 3 is a left side sectional view of Figure 1;

  Figure 4 is a schematic view showing the structure of the shaft head cover of the butterfly valve;

  Figure 5 is a plan view of Figure 4; Figure 6 is a schematic view of the hinge structure of the butterfly valve.

  In the figure, 1 is a valve body, 2 is a valve plate, 3 is a rotating shaft, 4 is a shaft head cover, 5 is a sealing member, 6 is a reinforcing rib, 7 is a thick portion of the valve body, and 8 is a thin portion of the valve body side. 9 is the lateral semicircular opening key on the shaft head cover, 10 is the longitudinal semicircular opening key on the shaft head cover, 11 is the mounting hole, 12 is the hexagonal rotating shaft, and 13 is the semi-hexagonal rotating shaft.

   As shown in the figure, the butterfly valve comprises a valve body 1, a valve plate 2, a rotating shaft 3, a shaft head cover 4, a sealing member 5 and a sealing groove, and the flange surface on one side of the valve body is made to conform to the force according to the principle of mechanical strength. The action rule can reduce the weight of the valve body - the structure is thick in the middle and thin on the side, and the other side is a flat structure; a reinforcing rib 6 is extended from the upper and lower sides and the left and right directions of the sealing groove, which can improve the valve body. Strength and stability; if the overall thickness of the valve body is 35mm, most of the thickness on the side of the valve body can be reduced to 12mm, which can greatly reduce the weight of the valve body; the shaft head cover is formed by aluminum die-casting, and two bolt mounting holes are opened thereon. 11. The shaft head cover has a waist-shaped counterbore, and each of the bottom of the waist-shaped counterbore has a counterbore corresponding to the lateral and longitudinal semi-circular opening keys 9, 10, respectively, indicating that the butterfly valve is closed or open, and the butterfly valve is The upper end of the shaft shaft is machined into a hexagonal shaft 12, and the top end of the hexagonal shape is machined into a semi-hexagonal shaft 13; for example, when the rotating shaft closes the butterfly valve, the lateral semicircle opening key 9 on the shaft head cover 4 is placed over the top end of the shaft. Semi-hexagonal shaft 13, very good for the limit The bolt is fixed to the valve body 1 through the bolt mounting hole 11 on the shaft head cover, and the valve plate 2 on the rotating shaft is closed by locking the rotating shaft 3, thereby improving the safety and reliability of the butterfly valve; the same principle, When the rotary shaft is opened to open the butterfly valve, the longitudinal semicircular opening key 10 on the shaft head cover 4 is sleeved on the semi-hexagonal shaft 13 at the top end of the rotating shaft, and the valve piece on the rotating shaft 3 is opened.




Best regards

Mandy

Email:mandy@erg.cn



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