Hydraulic damping device
A hydraulic damper and damping technology, which is applied to liquid shock absorbers, springs, shock absorbers, etc., can solve problems such as inability to adjust
Active Publication Date: 2018-12-18
WUHAN MARINE MACHINERY PLANT
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Problems solved by technology
[0005] Since the damping coefficient of the existing hydraulic damper is determined by the characteristics of the manufactured damping holes, the size and number of the damping holes have been fixed during the manufacturing process and cannot be adjusted during use
Method used
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[0028] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0029] An embodiment of the present invention provides a hydraulic damper, figure 1 is a cross-sectional view of a hydraulic damper provided by an embodiment of the present invention, figure 2 yes figure 1 The A-A section diagram, such as figure 1 and figure 2 As shown, the hydraulic damper includes a cylinder 1, a piston 2 located in the cylinder 1, and a piston rod 3 installed on the piston 2. The piston 2 is provided with at least one damping hole 2a along its circumference, and the hydraulic damper also includes an adjustment sleeve. 4. Guide rod 5 and curve damping setter 6.
[0030] The adjustment sleeve 4 is divided into an adjustment part 41 and a connecting part 42. The adjustment part 41 is arranged on the end face of t...
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The invention discloses a hydraulic damping device, and belongs to the technical field of hydraulic control devices. The hydraulic damper comprises a cylinder body, a piston, a piston rod, an adjusting sleeve, a guide rod and a curve damping setter, wherein the curve damping setter comprises a base and a damping characteristic setting plate, the base is fixedly arranged on the cylinder body, the damping characteristic setting plate is an arc-shaped plate, and the arc center of the damping characteristic arrangement setting plate is located on the central axis of the cylinder body; and a damping characteristic guide groove which is formed in the central axis direction of the cylinder body is formed in the damping characteristic setting plate, one end of the guide rod is fixed on the adjusting sleeve, and the other end of the guide rod is arranged in the damping characteristic guide groove. According to the hydraulic damping device, the guide rod is controlled to move in the damping characteristic guide groove, so that the adjusting part of the adjusting sleeve can be driven to rotate in the axial direction of the piston, the relative position of an adjusting hole of the adjusting sleeve and the damping hole is changed, and then the overlapped area of the adjusting hole and the damping hole is changed, the damping coefficient of the hydraulic damper is changed, and the damping coefficient of the hydraulic damper is changed along with the stroke of the piston.
Description
technical field [0001] The invention relates to the technical field of hydraulic control devices, in particular to a hydraulic damping device. Background technique [0002] The hydraulic damper uses fluid as the working medium, utilizes the viscous damping effect of the fluid flow, prolongs the action time of the impact load, and converts the mechanical energy generated when the load impacts into the pressure energy and heat energy of the fluid, thereby absorbing and converting the energy of the impact load, Then the mechanical parts with faster movement speed can be accurately stopped. [0003] There is a hydraulic damper. The hydraulic damper includes a cylinder body, a piston located in the cylinder body, and a piston rod installed on the piston. The piston rod extends out of the shell to bear the load, and a plurality of damping holes are arranged around the piston. There is hydraulic oil in the cylinder, when the load acts on the piston rod, the piston rod drives the p...
Claims
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IPC IPC(8): F16F9/19F16F9/508
CPCF16F9/19F16F9/5126
Inventor 李海程浩宇曾庆威马平安李相远
Owner WUHAN MARINE MACHINERY PLANT