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Pneumatic Parking and Discharging Brake Cylinders and Brake Calipers
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A brake cylinder and cylinder block technology, applied in the field of rail transit, can solve the problems of heavy weight and large volume, and achieve the effect of light weight, small volume, compact and simple structure
Active Publication Date: 2022-07-05
CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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Problems solved by technology
[0003] The present invention aims at the above-mentioned problems of large volume and heavy weight existing in existing electronic mechanical brakes, and provides a compact, small-volume, and light-weight pneumatic parking electric brake cylinder and brake caliper, which makes full use of the air source and Motor drive and cylinder drive are combined for parking and braking control, and the two drives are controlled independently of each other, with high safety and reliability
Method used
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Embodiment 1
[0067] Example 1: see figure 1 , this embodiment provides a pneumatic parking brake cylinder, including:
[0068] The motor drive unit 1 has a built-in transmission component I, and the transmission component I includes:
[0069] The lead screw 2 is connected to the motor drive unit 1;
[0070] Lead screw nut 3, drive connection with lead screw 2;
[0071] The cylinder assembly 4 is connected to the motor drive unit 1;
[0072] The piston assembly 5 is located in the cylinder assembly 4, and a cavity I6 is formed between the cylinder assembly 4 and the piston assembly 5 is provided with a stepped cavity 501 communicating with the cavity I6;
[0073] The charging and exhausting components are connected with the chamber I6;
[0074] Transmission assembly II, including:
[0075] The end gear I7 is arranged in the chamber I6 and can move axially along the piston assembly 5;
[0076] The end gear II8 is located at one end of the lead screw 2 close to the cylinder assembly 4, ...
Embodiment 2
[0125] Embodiment 2: This embodiment provides a brake caliper, including a caliper arm assembly and a parking brake cylinder, the parking brake cylinder adopts the pneumatic parking discharge brake cylinder described in Embodiment 1, and the pneumatic parking brake cylinder is The first support of the electric brake cylinder is connected with the first clamp arm of the clamp arm assembly, and the second support of the pneumatic parking electric brake cylinder is connected with the second clamp arm of the clamp arm assembly.
[0126] When the brake caliper of this embodiment performs normal braking, emergency braking and parking braking, the working principle of the parking brake cylinder is the same as that of Embodiment 1, and will not be repeated here.
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Abstract
The invention relates to a pneumatic stop-and-discharge brake cylinder and a brake caliper. The brake cylinder comprises: a motor drive unit, which is provided with a transmission assembly I; a cylinder block assembly, which is connected to the motor drive unit; a piston assembly, which is located in the cylinder block assembly, A chamber I is formed with the cylinder assembly, and the piston assembly is provided with a stepped cavity that communicates with the chamber I; the charging and exhausting assembly is connected to the chamber I; the transmission assembly II includes: an end gear I, located in the chamber I Inside; end gear II, located at one end of the transmission assembly I close to the cylinder assembly, meshing with the end gear I; elastic piece, sleeved on the end gear I, located between the cylinder assembly and the end gear I; connection The load sensor is connected with the connecting piece; the parking piece is located in the piston assembly and forms a chamber II with the connecting piece; the locking component is installed on the piston assembly and cooperates with the parking piece; the supporting component, respectively Connect the transmission assembly I and the load cell. The invention has compact structure, small volume, light weight, safety and reliability.
Description
technical field [0001] The invention belongs to the technical field of rail transit, relates to rail vehicle braking technology, and in particular relates to a pneumatic parking and discharge brake cylinder and a brake caliper. Background technique [0002] With the innovation of industrial control technology and the continuous improvement of the overall performance requirements of rail transit, the requirements for the electrification of rail vehicle brakes have been continuously improved, and intelligence, networking and lightweight have become the development trend. Motor-driven braking and mitigation, compared with pneumatic drive, has faster response speed, high energy utilization rate, low noise and easy maintenance. Therefore, electrified brakes are the development trend, and electromechanical brakes have become a research hotspot. The parking and emergency braking of electromechanical brakes are generally realized by energy storage springs. This braking method is co...
Claims
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Application Information
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