JB/T 9718-1999 This standard is a revision of ZB J83 012-89 "Terms of Braking System of Wheeled Engineering Machinery". During the revision, editorial changes were made according to relevant regulations, and some term definitions were modified or amended. This standard specifies the main terms of the braking device, braking system and its components of wheeled engineering machinery. This standard applies to the braking system of wheeled engineering machinery. This standard was first issued on May 13, 1989. JB/T 9718-1999 Terminology of Braking System of Wheeled Engineering Machinery JB/T9718-1999 Standard Download Decompression Password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/T 9718—1999
Wheel construction machinery
Braking system terms
Wheel construction machinery--Braking system terms1999-08-06 Issued
National Bureau of Machinery Industry
2000-01-01 Implementation
3B9718-19
This standard is a revision of 2FJ8312-89 "Wheel construction machinery brake system terms": When revising the original standard, the original standard was edited and the definitions of some terms were modified or corrected. 4 This standard replaces 7183012-89 from the date of implementation. This standard was proposed and approved by the Light Machinery Standardization Technical Committee. Drafting units of this standard: Dajin Engineering Machinery Research Institute, Jizhou Huayi Pressed Parts Factory. The main initiators of this standard are Liu Zongquan, Chen Quanlin and Peng Zhiqiang. This standard was first issued on May 13, 1989. It is the standard of the machinery industry of the People's Republic of China. It is the terminology of brake system for wheeled engineering machinery. The term is not a standard that specifies the main technical specifications of the braking device, braking system and its components of wheeled engineering machinery. The standard is used for the braking system of wheeled engineering machinery. The braking system is a general term for all braking and deceleration systems installed on wheeled engineering machinery. Its function is to reduce the speed of a moving vehicle to stop the vehicle or keep the stopped vehicle stationary. Braking system terms Braking system refers to all parts of wheeled engineering machinery that have braking effects. 3.1 Classification by direct use 3.1.1 Service braking system A braking system used to slow down or stop a wheeled engineering machinery in motion. Its effect must be gradual. 3.12 Emergency braking system is a braking system that is auxiliary to the normal driving system and can reduce or maintain the speed of the vehicle, especially when the vehicle is slowing down. 3.1.3 Parking braking system A braking system that mechanically keeps the vehicle (including parking on a slope) stationary. 3.1.4 Auxiliary braking system A braking system that can still slow down or stop the vehicle in the event of failure of the driving braking system. Its function should be discontinuous. 3.1S automatic braking system akingsygtcm Braking system that can automatically activate the trailer when the power pipeline connecting the trailer and the towing vehicle is hot or broken. 3.2 Classification by energy transmission method
3.2.1 Air brake system airbrakirngsystem Braking system that uses compressed air as energy to produce braking force. 2.2.2 Hydraulic brake system lrydraulic brake system Braking system that uses fluid pressure as energy to produce braking force. 3.2.3 Air-hydraulic brake system airlhydrauliebrakinsystem Approved by the State Machinery Industry Bureau on August 6, 1999, 200-1-01
JB/T9718-199
The energy source for generating braking force is compressed air converted into liquid force to achieve the braking system. 3.2.4 Mechanical system, mechanical braking>system The energy of braking force is transmitted to the brake through mechanical mechanisms such as chains, cams, and numbers. 5.3 Classification by energy transmission device circuit
3.3.1 Single circuit braking system Single circuit braking system A braking system consisting of only one circuit. If one of them fails, the reverse braking force cannot be transmitted. 3.3.2 Dual circuit braking system Dual circuit braking system A braking system consisting of two circuits. If one of them fails, the reverse braking force can still be partially or completely transmitted. 3. 3.3 Multi-circuit braking system A braking system composed of more than one circuit, which can still partially or completely transmit the braking force even if one of them fails. The braking system consists of energy supply device, control device, special device, brake, deceleration device, auxiliary device and various functional brake pipelines. 4.1 Energy supply device Energy supplying device The component that supplies the braking energy. 4.2 Control device Control device The component or mechanism that operates and controls the braking effect. 4.3 Energy transmission device The part used to transmit the braking energy to the brake actuator. Its types include pneumatic, hydraulic, mechanical, etc. 4.4 Brake Brake The component that generates micro power to prevent the vehicle from moving or moving in the direction of movement. 4.1 Friclion brake: An actuator that applies force to a component mounted on a fixed part of the vehicle and produces braking by friction. 4.4.1.1 Drum brake: An actuator that produces a single-relay force between a component connected to a fixed part of the vehicle and the inner or outer surface of the brake drum. a) Intenial expanding brake: An actuator that produces friction between a component connected to a fixed part of the vehicle and the inner surface of the brake device. b) Band brake: A brake that applies force to a brake belt with a contact material against the outer surface of the brake device to produce a dynamic brake. d.1. Disc brake: A brake that produces a dynamic force between a component connected to a fixed part of the vehicle and the two end surfaces of one or more brake discs.
a) Disc brake with fixed calipers Brake calipers are fixed on both sides of the brake disc, and there are pressure mechanisms on both sides. Disc brake with floating calipers Brake calipers are only equipped with a clamping mechanism on one side of the brake disc, and the clamping force is generated on the other side of the brake disc by floating.
JB/T 9718-1999
c) Island brake Cnmpletediscbrake Disc brake with friction material covering the entire working surface of the brake disc. 4.s Reduction device (reducer) rctarder is used to reduce the speed of a moving vehicle (especially a vehicle going down a long slope) or stabilize it within a certain speed range. d.5. Internal combustion engine reduction device rularlerbyconmbustionelgine A device that reduces the internal resistance of the internal combustion engine by reducing the fuel supply, regulating the intake and exhaust throttling.
4.5.2 Electric motor reduction device relarderbyzelectrictractianmotor A device that uses the vehicle's excitation wheel to drag the motor, turning the electric motor into a generator to produce a deceleration effect. 4.5.3 Speed ​​device Ihydrn-d A device that uses the variable speed principle to obtain a deceleration effect. Auxiliary devicewwW.bzxz.Net
A device added to the brake system to improve the braking performance and ease of use: 4.6.1 Alarm device
A device that sends a warning signal to the driver when the working conditions of the brake system reach a critical level. 1.6.2 Protection pressure device A device that can maintain a certain pressure in the brake system when a part of the brake device or its accessories is damaged. 4.7 Braking line braking line
4.7.1 Energy supply line
A pipe connecting the braking energy source, the energy supply device and the control device. d,7,2 Control line uclualing line
A pipe connecting the brake valve to the brake. 4.7.3 Pilor line
A pipe connected between the brake valve and the brake.
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