A method and device for controlling the beating frequency of a breaking hammer
A technology of breaker and frequency, applied in the direction of fluid pressure actuation device, fluid pressure actuation system components, mechanical equipment, etc., can solve the increase of hydraulic oil leakage, the decrease of the consistency of hydraulic oil station, and the reduction of the work efficiency of the breaker, etc. question
Active Publication Date: 2020-06-05
SHANDONG LINGONG CONSTR MACHINERY
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[0003] However, this method of controlling the hammering frequency of the breaker does not take into account the hydraulic pressure inside the hydraulic line of the breaker caused by the temperature change of the hydraulic oil during the hammering process, because the ambient temperature of the test environment is generally room temperature, such as 25°C. The impact of changes in oil leakage, for example, as the working time of the breaker in the crushing mode increases, the temperature of the hydraulic oil increases accordingly, and the increase in the temperature of the hydraulic oil will cause the consistency of the hydraulic oil station to decrease, resulting in internal leakage of the hydraulic pipeline. The hydraulic oil leakage of the hydraulic oil increases, so the actual flow of the hammer to the hammer decreases, resulting in a decrease in the frequency of the hammer, thereby reducing the working efficiency of the hammer
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[0082] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without...
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The invention provides a method and a device for controlling the beating frequency of a breaking hammer. The method for controlling the beating frequency of the breaking hammer comprises the followingsteps of obtaining current temperature of hydraulic oil generated when the breaking hammer is in a breaking mode; according to the current temperature of the hydraulic oil, a current beating grade and current beating frequency of the breaking hammer and a pre-constructed leakage model, calculating leakage flow of the breaking hammer; and controlling a hydraulic pump to compensate the breaking hammer for the leakage flow. According to the method and the device, the working efficiency of the breaking hammer can be improved.
Description
technical field [0001] The present application relates to the technical field of engineering machinery, in particular, to a method and device for controlling the hammering frequency of a breaking hammer. Background technique [0002] The hydraulic breaker (hydraulic hammer for short) uses the hydraulic pump as the power source and the hydraulic oil as the working medium. The hydraulic pump uses the hydraulic pump to output the hydraulic oil in the hydraulic oil tank to the inside of the hydraulic pipeline, and the hydraulic oil in the hydraulic pipeline Crushing equipment that converts hydraulic energy into mechanical energy that drives the breaker to perform the crushing mode, and is widely used in mining, building construction, road construction, metallurgical industry and other fields. Among them, the working efficiency of the breaker is related to the stability of the hammer frequency, and the hammer frequency is related to the flow of the breaker through the hydraulic p...
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IPC IPC(8): F15B21/02
CPCF15B21/02
Inventor 张强张建武香菊崔永国徐腾飞
Owner SHANDONG LINGONG CONSTR MACHINERY