A Small Rotation Angle Pantograph Bow Head Balance Mechanism
A technology of balancing mechanism and pantograph, applied in the field of pantograph, can solve the problems affecting the current receiving quality of the pantograph, and achieve the effects of improving the current receiving quality, reducing the damage of pantograph and catenary, and reducing the deflection angle.
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[0033] Such as Figure 4~6 As shown, a pantograph head balance mechanism with a small rotation angle includes a balance bar system, the balance bar system includes a first bar 3 hinged to the upper end of the lower arm 2, a second bar 4 hinged to the upper end of the upper arm 1, The fourth rod 6 fixedly connected to the middle position of the bow shaft 7, the third rod 5 whose one end is hinged with the free end of the second rod 4 and whose other end is hinged with the free end of the fourth rod 6 .
[0034] The first rod 3 is arranged directly below the upper arm rod 1 , and the other end of the first rod 3 is hinged to the middle part of the second rod 4 . The upper end of the upper arm 1 is extended with a connecting portion 8 , and the connecting portion 8 is hinged to the bow head rotating shaft 7 . The second rod 4 is an arc rod, and its bending direction faces the first rod 3 .
[0035] The bow head rotating shaft 7 has a π-shaped structure, including a hollow middl...
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