A hydraulic-electric compound retarding braking element
A slow-speed braking and braking component technology, which is applied in the field of slow-speed braking actuators and slow-speed braking components for rotating shafts, can solve the problems of fast response time and low braking power, and achieve low Air churning loss, to achieve the effect of air loss suppression
Inactive Publication Date: 2018-02-27
CHINA NORTH VEHICLE RES INST +1
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Problems solved by technology
[0011] The current application of eddy current retarder on vehicles is mainly cooled by natural vehicle running wind (dry type), and the braking power is not large, but its response time is fast.
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[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.
[0025] The front view of the hydraulic-electric compound retarder brake component is as follows: figure 2 As shown, the braking element includes a transmission shaft 1, a hydraulic braking part 9, and an eddy current braking part 8; image 3 shown.
[0026] The eddy current brake part 8 includes the stator main magnetic part 3-2, the excitation coil 4, and the eddy current brake rotor 5; the two sides of the stator main magnetic part 3-2 are fixed on the transmission case by bolts, and the excitation coil 4 is fixed on the On the stator, the eddy current braking rotor 5 is bolted to the component 2 of the hydraulic braking part and rotates together with the transmission shaft 1 and the hydraulic braking rotor 2 through ...
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The invention provides a hydraulic-electric composite type retarding braking element and belongs to the technical field of braking. On one hand, an eddy current retarder and a hydraulic retarder are combined together to be designed, the large-flow oil filling condition of hydraulic retardation is reused, and forced circulation oil cooling of the eddy current retarder is achieved; on the other hand, the two retarders are combined so that the larger retarding power can be obtained; and furthermore, the characteristic of the short response time of the eddy current retarder and the characteristic of the large braking torque of the hydraulic retarder are integrated, the better combined braking retarding matching characteristic can be obtained. A stator of the hydraulic retarder and a stator of the eddy current retarder are integrally designed. Through rotors in hydraulic and electric composite design and an oil supply structure in a low-pressure region, working oil of the hydraulic retarder also serves as cooling oil of the eddy current retarder at the same time. Through the oil supply control design that the retarders are started in the braking process and stopped in the non-braking process, empty-loss restraint in the non-braking state is achieved. Air holes are formed in a high-pressure region generated through the rotors, so that gas mixing losses are reduced.
Description
technical field [0001] The invention relates to a brake retarding actuator, in particular to a hydraulic-electric composite retarding brake element for a rotating shaft system, which belongs to the technical field of braking. Background technique [0002] In order to compensate and improve the shortcomings of mechanical brakes such as small braking torque at high-speed sections and high load and high-temperature conditions, and to extend the service life of mechanical brakes, high-speed tracked vehicles generally use mechanical brakes and retarding systems. There are three kinds of retarding types suitable for the environmental requirements of tracked vehicles: hydraulic retarding, eddy current retarding, and motor braking retarding using the fourth quadrant characteristics of motor-driven vehicles. Structure type. [0003] hydraulic retarding [0004] The hydraulic retarder drives the liquid to rotate through the rotation of the rotor connected to the transmission shaft, ...
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IPC IPC(8): B60L7/28B60T10/00
CPCB60L7/28B60T10/00
Inventor 宁克焱李德胜方青峰田金山谢谋叶乐志
Owner CHINA NORTH VEHICLE RES INST