Damping generating device
A technology for generating devices and damping, which is applied in the field of devices in vehicle simulated crash tests, and can solve the problems that the damping cannot be changed arbitrarily
Inactive Publication Date: 2011-06-01
BYD CO LTD
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Problems solved by technology
[0004] In order to solve the problem that the damping generated by the above-mentioned damping generating device cannot be changed at will, the present invention provides a damping generating device that can be adjusted at will, and the damping generating device can generate damping with different changing trends.
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[0020] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0021] Such as Figure 1 to Figure 5 As shown, the damping generating device of the first embodiment of the present invention includes: a cylinder body 1, a piston 2, a piston rod 3, a cylinder head 4, a first sealing ring 5, a second sealing ring 6, an impact plate 7 and a screw 8 .
[0022] Cylinder body 1 has a cuboid shape with a cylindrical cavity 101 inside. The axial direction of the cylindrical cavity 101 is the length direction of the cuboid. There is liquid in the cylindrical cavity 101, and the piston 2 is located in the cylindrical cavity 101. There are two...
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The invention provides a damping generating device, which comprises a cylinder body, a cylinder cover, a piston rod and a piston, wherein the cylinder body is provided with an inner cavity; the cylinder cover is fixedly connected with the cylinder body and closes the inner cavity; the piston can move in the inner cavity; one end of the piston rod is fixedly connected with the piston, and the other end of the piston rod penetrates through the cylinder cover and extends to the outside of the cylinder body; liquid is filled in the inner cavity; at least one row of threaded holes which are arranged in the moving direction of the piston are formed on the cylinder body; an external threaded rod is arranged in each threaded hole, and the external threaded rods can rotate relative to the threaded holes; one end of each external threaded rod extends into the inner cavity, and the other end of each external threaded rod is positioned outside the cylinder body; and the piston is provided with at least one elongated slot for the parts of the external threaded rods positioned in the inner cavity to pass through. The damping of the damping generating device can be adjusted at will, so that the damping generating device can generate various damping with different change trends.
Description
technical field [0001] The invention relates to a device in a simulated collision test of a vehicle, in particular, the invention relates to a damping generating device. Background technique [0002] In the simulated crash test of vehicles, the damping generating device is the core component. During the test, the damping generating device generates varying damping, which can be collected by an appropriate collecting device to form a collision curve similar to a real vehicle collision. [0003] There is a damping generating device in the prior art. When the damping generating device is tested, the trolley moves to the right, pushing the piston rod and the piston to move to the right, and the liquid in the cavity on the right is throttled by the throttle screw under the action of the piston. The flow out of the hole, because the orifice is very small, the piston will be subjected to the resistance of the liquid to form damping. In this damping generating device, since the th...
Claims
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IPC IPC(8): G01M7/08G01M17/00
Inventor 窦以十姚民庆刘锦江
Owner BYD CO LTD