A 21mpa air pressure brake valve
A brake valve, 21mpa technology, applied in the direction of control valves and air release valves, vehicle components, brake components, etc., can solve the problem of low braking efficiency
Active Publication Date: 2018-07-03
XIAN AVIATION BRAKE TECH
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] In order to overcome the shortcomings of low braking efficiency in the prior art, the present invention proposes a 21MPa air pressure brake valve
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0038] Such as figure 1 shown. This embodiment is an emergency brake valve for a certain type of machine, including pressure head 1, adjustment nut 2, adjustment washer 3, decompression spring 4, pull rod 5, exhaust chamber sealing ring 6, exhaust valve 7, piston 8. Piston seal ring 9, intake valve seat 10, intake cavity seal ring 11, adjusting washer 12, screw plug 13, intake cavity spring 14, intake valve 15, brake cavity spring 16, exhaust cavity spring 17 and housing 18.
[0039] The housing 18 is the carrier of this embodiment. The casing is divided into two parts, a brake cavity and an exhaust cavity, and a partition plate is arranged between the brake cavity and the exhaust cavity. A threaded through hole is provided on the housing wall at the side of the air inlet cavity of the housing close to the partition plate for installing the brake nozzle. There are through holes on the partition plate. The piston 8 is installed in the through hole and sealed by the piston se...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a pneumatic brake valve of 21MPa. A brake pipe nozzle is arranged in an air inlet cavity of a casing, an exhaust hole of a piston communicates with a brake cavity, a brake cavity spring is mounted on the piston in a sleeving manner, and an air inlet valve seat is mounted on the brake cavity spring in a sleeving manner; an air inlet valve is positioned on the outer end surface of the air inlet valve seat, an exhaust valve is positioned in an exhaust cavity of the casing, and a screw plug is mounted on the air inlet valve in a sleeving manner; a pressure relief spring is mounted in an exhaust valve assembly; a pull rod is mounted in center holes of spring seats and a center hole of the pressure relief spring, and a spherical head of the pull rod is matched with a spherical pit in the end surface of one end of the exhaust valve; snap rings are mounted between the pull rod and the spring seats; the spherical surface of one end of the pull rod is matched with the spherical pit in the exhaust valve; one end of a pressure head is positioned in the casing and is mounted on the pressure relief spring in a sleeving manner. According to the pneumatic brake valve disclosed by the invention, different operating force is set for products, so that required brake pressure is obtained; nitrogen enters the brake cavity to be decompressed, and then is output to a brake device; therefore, braking is completed, and the purpose of judging whether the braking speed is high or low according to the length of air inlet time.
Description
technical field [0001] The invention relates to a brake valve for an aircraft brake system, in particular to a 21MPa air pressure brake valve. Background technique [0002] The aircraft braking system is usually equipped with a normal braking system and an emergency braking system. When the normal braking system fails, the emergency braking system is used. The normal braking system has an automatic anti-skid function, and the emergency braking system generally brakes by the driver's own feeling. [0003] Pneumatic brake valves are widely used in the aviation industry and machinery industry, such as airplanes, ships, automobiles and various excavation machinery. , Air pressure servo valve, air pressure relief valve, air pressure reversing valve, air pressure booster valve, ultra-high pressure pneumatic pressure reducing valve, etc. The rated working pressure of domestic pneumatic brake valves is relatively low, between 5MPa and 13MPa. [0004] Usually, the working medium of...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B60T15/04
CPCB60T15/04
Inventor 孙大联张娟郭育秦
Owner XIAN AVIATION BRAKE TECH