Electrically-controlled speed change valve of bulldozer
The utility model relates to an electrically-controlled speed change valve of a bulldozer. The speed change valve comprises an electromagnetic valve A, an electromagnetic valve B, an oil cylinder A, an oil cylinder B, a pressure regulating valve, a quick return valve, a gear reversing valve and a di...
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Main Authors | , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
04.12.2013
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Subjects | |
Online Access | Get full text |
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Summary: | The utility model relates to an electrically-controlled speed change valve of a bulldozer. The speed change valve comprises an electromagnetic valve A, an electromagnetic valve B, an oil cylinder A, an oil cylinder B, a pressure regulating valve, a quick return valve, a gear reversing valve and a direction reversing valve, wherein a hydraulic pump is sequentially communicated with the electromagnetic valve A and the oil cylinder A through an oil path A, an oil path C is sequentially communicated with the electromagnetic valve B and the oil cylinder B, and the pressure regulating valve, the quick return valve, the gear reversing valve and the direction reversing valve are sequentially communicated through an oil path B; the gear reversing valve comprises a first gear, a second gear, a third gear and a valve core A, the direction reversing valve comprises a forward gear, a reverse gear, a neutral gear and a valve core B, a cylinder rod A of the oil cylinder A is connected with the valve core A of the gear rever |
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Bibliography: | Application Number: CN20132377409U |