A Measuring Device for Switching Force of Variable Lift Camshaft
A technology for measuring devices and camshafts, applied in measuring devices, force/torque/power measuring instruments, instruments, etc., can solve the problems of inconvenient measurement operation, poor measurement accuracy, complex structure, etc., and achieve convenient measurement operation and high measurement accuracy Improvement and low manufacturing cost
Active Publication Date: 2021-03-19
SAIC MOTOR
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Problems solved by technology
[0006] However, the measuring devices for the switching force of variable lift camshafts in the prior art have various structures, and generally have defects such as complex structures and poor measurement accuracy, which bring great inconvenience and influence to the measurement operation
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[0029] The purpose of the present invention is to provide a new type of measuring device for switching force of a variable lift camshaft, which has a simpler structure and improved measurement accuracy, so that the measurement operation can be completed more conveniently and accurately.
[0030] Hereinafter, an embodiment will be described with reference to the drawings. In addition, the examples shown below do not limit the content of the invention described in the claims in any way. In addition, all the contents of the configurations shown in the following embodiments are not limited to be essential to the solution of the invention described in the claims.
[0031] Please refer to Figure 1-Figure 3 As shown, the embodiment of the present invention provides a novel variable lift camshaft switching force measuring device, which is used to measure the lift switching force of the camshaft 1 provided with the sleeve 2. The camshaft 1 passes through The position switching of th...
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The invention discloses a measuring device for switching force of a camshaft with a variable lift range. A sleeve is arranged on the camshaft. The variable lift range is realized through position switching of the sleeve. The measuring device includes a fixed base, wherein the camshaft is mounted on the fixed base and the fixed base is axially fixed, a push-pull force guiding device which is connected to the sleeve and can drive the sleeve to switch, and a push-pull force measuring device which acts on the push-pull force guiding device and is used for measuring force acting when the push-pullforce guiding device drives the sleeve to switch. Compared with a conventional measuring device, the measuring device for the switching force of the camshaft with the variable lift range is simpler instructure, low in cost and improved in measuring precision and makes the measurement operation more convenient and accurate.
Description
technical field [0001] The invention relates to the technical field of camshaft testing, in particular to a measuring device for switching force of a variable-lift camshaft. Background technique [0002] In the field of internal combustion engines, the valve lift of the valve mechanism of the traditional engine is fixed, and the engine performance is adjusted by adjusting the throttle opening under various working conditions. At this time, the engine performance cannot be maximized. [0003] The engine variable valve lift technology is to match the appropriate valve lift when the engine is at different speeds and loads, so that the engine uses a smaller valve lift at low speeds and light loads, which is beneficial to saving fuel. When the speed is high and the load is high, a larger valve lift is used to reduce valve throttling loss and significantly increase the intake air volume. [0004] Variable valve lift technology is to change the valve lift according to the change o...
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IPC IPC(8): G01L5/12
Inventor 黄旭郝晓伟李冲霄尹琪
Owner SAIC MOTOR