Hydraulic brake with spoilers
A technology of hydraulic brakes and spoilers, applied in the field of hydraulic machinery, can solve problems such as power loss and achieve the effect of saving energy
Active Publication Date: 2016-12-21
CRRC DALIAN INST CO LTD
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Problems solved by technology
However, under normal working conditions, the chamber emptied of the working medium will be filled with air, and the air can also generate and transmit a certain amount of braking torque, resulting in power loss. When the speed is high, this loss cannot be ignored. of
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[0010] figure 1 Shown in the hydraulic brake case 1 with spoiler of the present invention. The brake shaft 17 is supported horizontally by the bearing i-19, the bearing ii-20, and the bearing iii-21 in turn. Bearing i‐19 is an angular contact bearing, bearing ii‐20 is a cylindrical roller bearing, and bearing iii‐21 is a single rib cylindrical roller bearing. Angular contact bearing i‐19 can withstand small horizontal left and right axial forces. The single-rib cylindrical roller bearing iii-21 can withstand a large horizontal axial force to the right, and adjust the axial clearance to ensure that the shafting can rotate normally after the temperature rises during the braking process. The output gear 18 is fixed on one side of the brake shaft 17 in the cavity between the bearing ii-20 and the bearing iii-21 in the brake housing 1 . The brake rotor 8 and the brake stator 9 are arranged in the brake housing 1 on the other side of the brake shaft 17 . A circulating working ch...
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The invention provides a hydraulic brake with spoilers. The hydraulic brake is characterized in that a telescopic mechanism is fixed to the upper portion of a brake box body. A spring and a gate valve with a pin hole are arranged in the telescopic mechanism. A wedge-shaped limiting block is fixed to each of the upper portions of the two symmetrically-installed sickle-shaped spoilers with the same shape, and pin holes are formed in the upper ends of the sickle-shaped spoilers. A pin shaft penetrates the pin hole of the gate valve and the pin holes of the sickle-shaped spoilers. The shapes and sizes of the sickle-shaped spoilers, the wedge-shaped limiting blocks and the gate valve are calculated according to actual specification and dimension design; when the two sickle-shaped spoilers are completely opened, the area of a round plane, opposite to a brake rotor, of a brake stator is completely exposed; and when the sickle-shaped spoilers are completely closed, 80% or above of the outer ring area of the round plane, opposite to the brake rotor, of the brake stator is shielded. It is guaranteed that braking torque is normally generated and transmitted at the braking stage, air which replaces working fluid to be injected into a circulating working chamber cannot effectively generate and transmit the torque, the problem that the blasting loss of a brake is large at the non-braking stage is effectively solved, and energy is remarkably saved.
Description
technical field [0001] The invention relates to the field of hydraulic machinery. Background technique [0002] The hydraulic brake has two impellers, a stator and a rotor, and a series of annular chambers are formed between the blades of the two opposite impellers. During the braking phase, the working fluid (commonly used transmission oil) will be flushed into the chamber to generate and transmit the braking torque. During the non-braking phase, the working medium in the chamber is evacuated. However, under normal working conditions, the chamber emptied of the working medium will be filled with air, and the air can also generate and transmit a certain amount of braking torque, resulting in power loss. When the speed is high, this loss cannot be ignored. of. Contents of the invention [0003] In order to overcome the defects in the prior art and solve the problem of large blowing loss of the brake during the non-braking stage, the present invention proposes the followi...
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IPC IPC(8): F16D57/00
CPCF16D57/00
Inventor 孙志新高恩芹类延磊
Owner CRRC DALIAN INST CO LTD