Hydraulic braking system for engineering vehicle
A technology for hydraulic braking and engineering vehicles, which is applied to brakes, vehicle components, brake transmissions, etc., can solve problems such as easy failure, large vibration shock, difficulty in maintaining pressure balance, etc., and achieves improved safety and reliability. The effect of small, long holding time
Inactive Publication Date: 2016-11-16
贵阳玛莱特液压电磁科技有限公司
View PDF1 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
For this reason, the utility model patent with the application number "201420325318.2" and the title "A Rapid Response Hydraulic Brake System for Engineering Vehicles" discloses a hydraulic brake system for engineering vehicles, which is installed between the brake valve and the brake. Add a hydraulic control valve to realize vehicle braking; not only the structure is complex, prone to failure, but also the braking response is relatively lagging
In addition, the filling valve of this utility model patent is only a two-position three-way valve (without a shuttle valve), which not only makes it difficult to maintain a pressure balance when filling the accumulators, but also has a large jitter impact during the filling process , cannot meet the braking performance requirements of large engineering vehicles
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
[0009] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:
[0010] Such as figure 1 As shown: the filling valve 4 is composed of a main valve, a one-way throttle valve, a pilot valve and a shuttle valve (not shown in the figure). The filling valve passes through the first working oil port A, the second working oil port B and The first accumulator 5 and the second accumulator 6 are connected correspondingly, the oil pump 1 is connected to the oil inlet P of the filling valve 4, and the oil return port O of the filling valve 4 is connected to the oil pool (not shown in the figure) . The hydraulic brake valve 8 is composed of two hydraulically controlled three-position three-way valves (not shown in the figure), and the oil inlet P of one of the hydraulically controlled three-position three-way valves 1 , oil outlet A 1 , oil return port T 1 Correspondingly connected with the first accumulator 5, the front w...
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 discloses a hydraulic braking system for an engineering vehicle, belongs to vehicle braking systems, and aims at providing a vehicle braking system which is fast in braking response, reliable in braking effect and smooth in liquid filling process. The hydraulic braking system comprises an oil pump (1) connected with a first energy accumulator (5) and a second energy accumulator (6) through a liquid filling valve (4), a front wheel brake (10) and a rear wheel brake (10), wherein the front wheel brake (10) and the rear wheel brake (10) are correspondingly connected with the first energy accumulator (5) and the second energy accumulator (6) through a hydraulic brake valve (8); and the liquid filling valve (4) is connected with a third energy accumulator (13) through a one-way valve (7), and a parking brake (11) is connected with the third energy accumulator through a parking brake valve (12). By the adoption of the hydraulic braking system, two energy accumulators can be filled with liquid in a balanced manner at the same time, oil can be supplied to the third energy accumulator manually even though the oil pump or the liquid filling valve breaks down, so that emergency braking is achieved, and the safe reliability of the system is improved.
Description
technical field [0001] The invention relates to a hydraulic braking system, in particular to a hydraulic braking system for walking engineering vehicles such as loaders and excavators. Background technique [0002] The hydraulic braking system is a commonly used braking system for engineering vehicles, and it is required to have the characteristics of fast response and high reliability. For this reason, the utility model patent with the application number "201420325318.2" and the title "A Rapid Response Hydraulic Brake System for Engineering Vehicles" discloses a hydraulic brake system for engineering vehicles, which is installed between the brake valve and the brake. A hydraulic control valve is installed in between to realize vehicle braking; not only the structure is complex and prone to failure, but also the braking response is relatively lagging. In addition, the filling valve of this utility model patent is only a two-position three-way valve (without a shuttle valve)...
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 Applications(China)
IPC IPC(8): B60T13/16
CPCB60T13/168
Inventor 罗艳蕾许军
Owner 贵阳玛莱特液压电磁科技有限公司