Endurance test apparatus of auxiliary exhaust brake and testing method
A technology of durability test and brake, applied in the direction of measuring device, test of machine/structural parts, instrument, etc., to achieve the effect of easy operation, rigorous method and convenient disassembly
Inactive Publication Date: 2015-01-28
NANJING AUTOMOBILE GROUP CORP
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Problems solved by technology
[0003] The durability test of automobile exhaust auxiliary brake is mainly to assess the performance of exhaust auxiliary brake. At present, there is no special test equipment for this test in China. Improvement of the scheme, durability test and comparative analysis of the exhaust auxiliary brake also highlight its importance
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[0022] Below in conjunction with the accompanying drawings, through the description of the embodiments, the structure of each component involved in the above-mentioned technical solution of the present invention, the position and interconnection relationship between each part, the working principle and operation method of each part, etc., will be further detailed The description can help those skilled in the art to have a more complete, in-depth and accurate understanding of the inventive concepts and technical solutions of the present invention.
[0023] Such as figure 1 Shown, the schematic diagram of exhaust auxiliary brake endurance test device of the present invention, exhaust auxiliary brake endurance test device is made of electric control system, and it comprises that the test provides the automobile desiccant that needs air pressure source, dry gas source, And provide electrical control power supply, electromagnetic steering valve, timer and counter for precise contr...
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The invention discloses an endurance test apparatus of an auxiliary exhaust brake and testing method thereof, wherein the apparatus is specially used for testing the endurance performance of the auxiliary exhaust brake of a light-weight load-carrying vehicle. The endurance test apparatus is composed of an electric control system and an environmental cabinet. The electric control system consists of an air pressure regulating valve, an automobile drying agent, an electromagnetic switching valve, a counter, a timer, and a voltage controlled power supply. A copper tube is arranged in the environment cabinet; one end of the copper tube is connected with the electromagnetic switching valve and the other end is connected with a brake cylinder of the auxiliary exhaust brake. According to the invention, the endurance test apparatus with a simple structure can be installed and dismounted conveniently; and the work strength of the tester can be lightened. With the testing method, the endurance of the automotive auxiliary exhaust brake can be tested by simulating a real vehicle environment. The apparatus can be used for verifying the endurance testing method of automotive auxiliary exhaust brake, thereby providing the reliable basis for the design of the automotive auxiliary exhaust brake.
Description
technical field [0001] The invention belongs to the technical field of auto parts testing, and in particular relates to a light-duty vehicle exhaust auxiliary brake durability test device and a test method thereof. Background technique [0002] With the development of the automobile industry and highways, light-duty vehicles have higher and higher requirements for driving speed, and higher requirements for the braking performance of the vehicle. In some areas of our country, there are many ramps and curves, especially There are many road sections going down long slopes. If the braking load generated by light-duty vehicles is all borne by the service braking system, it is easy to cause overheating of the brake drum and brake friction lining, which may cause a decrease in braking efficiency, or even Completely ineffective. In order to solve the above technical problems, the exhaust auxiliary braking system is equipped. By reducing the engine speed, the light-duty vehicle can ...
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Inventor 杨晓明
Owner NANJING AUTOMOBILE GROUP CORP