Wheel crane and suspension hydraulic system thereof
A technology of wheeled cranes and hydraulic systems, applied in suspension, interconnection systems, wheels, etc., can solve the problems of high cost, complex system, and many components, and achieve the effect of simple structure and cost control
Inactive Publication Date: 2011-04-20
XUZHOU HEAVY MASCH CO LTD
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Problems solved by technology
[0007] The oil-pneumatic suspension device requires many components, the system is complex, and the cost is high. Moreover, since the connection between the frame and the axle mainly depends on the suspension cylinder, the vehicle needs to be leveled before driving, so that the suspension cylinder is in the Medium, the operation process is more complicated
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Embodiment Construction
[0024] The core of the present invention is to provide a suspension hydraulic system of a crane, which has a simple structure and can realize the conversion between the rigid state and the elastic state of the crane. Another core of the present invention is to provide a wheeled crane including the above suspension hydraulic system.
[0025] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0026] Please refer to figure 1 , figure 1 It is a principle diagram of a specific embodiment of the suspension hydraulic system provided by the present invention.
[0027] The crane suspension hydraulic system provided in this embodiment includes a first suspension cylinder A1 and a second suspension cylinder A2, the two ends of the two suspension cylinders can be respectively connected to...
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The invention discloses a crane suspension hydraulic system. The system comprises a first suspension cylinder (A1) and a second suspension cylinder (A2). The system is characterized in that the rodless cavity of the first suspension cylinder (A1) is communicated with the rodless cavity of the second suspension cylinder (A2) through a first oil line; the rod cavity of the first suspension cylinder (A1) is communicated with the rod cavity of the second suspension cylinder (A2) through a second oil line; the system also comprises a change valve arranged in the first oil line or the second oil line; when the change valve is in a first working position, the first oil line or the second oil line is disconnected; and when the change valve is in a second working position, the first oil line and the second oil line are both communicated. The suspension hydraulic system can realize the convertion of a rigid locking state and an elastic loading state, the required elements are fewer, the structure is simpler and the production cost can be effectively controlled. The invention also provides a wheel crane containing the suspension hydraulic system.
Description
technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a crane suspension hydraulic system. The invention also relates to a wheeled crane comprising the suspension hydraulic system described above. Background technique [0002] Suspension is the general term for the force transmission connection device between the car frame and the axle, which transmits and carries the force and torque acting between the wheel and the frame, and can buffer the impact transmitted from the uneven road to the frame or body force, and attenuate the vibration caused by it, so as to ensure the smooth running of the car. [0003] The suspension hydraulic system is a suspension device composed of a hydraulic system, which has the function of ensuring the smoothness and stability of the vehicle. [0004] Taking the suspension hydraulic system of a crane as an example, the suspensions currently used for the chassis of wheeled cranes mainly incl...
Claims
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Login to View More IPC IPC(8): B60G21/06B60B35/00
Inventor 史飞曹培雷张付义张永亮孙建华
Owner XUZHOU HEAVY MASCH CO LTD