CN203551998U - Hydraulic device oil monitoring control circuit - Google Patents

Abstract

The utility model discloses a hydraulic device oil monitoring control circuit which comprises an interface terminal, a power supply circuit, an oil sensor, a CAN transceiver circuit, an LM3S2965 control chip, a digital tube display circuit, an isolation circuit, a relay circuit, a reset circuit, a clock circuit and a key circuit. The hydraulic device oil monitoring control circuit provided by the utility model has the advantages that real-time monitoring is realized, and analysis and classification are carried out on the data of four parameters of 'temperature', ' dynamic viscosity', 'density' and 'dielectric constant' of hydraulic oil; according to display, the data after analysis and classification are converted into corresponding display data and are displayed through a digital tube; output protection is realized; contrast calculation is carried out on the data after classification and a protection value set through a button; and when the data is greater than the protection value, a switch quantity signal prompt is output or a hydraulic device is controlled to stop running. Compared with the traditional man-made oil detection method, the device provided by the utility model has the advantages of high efficiency, high timeliness, high reliability, high stability, good compatibility, easy installation and the like.

Description

The oily Monitoring and Controlling circuit of hydraulically operated equipment (HOE)

Technical field

The utility model relates to a kind of hydraulically operated equipment (HOE) oil Monitoring and Controlling circuit.

Background technology

In recent years, the Quick height of China's industrial technology level had driven the raising of the mechanization degree of mining industry, and especially mining hydraulic equipment is used in a large number.Traditional artificial going of passing through detects mode randomness oily in hydraulically operated equipment (HOE) greatly, and determination methods is single, and data are inaccurate.Hydraulically operated equipment (HOE), producing the quality that loss affects hydraulic oil in operational process for a long time, if change hydraulic oil by monitoring not in time, may cause oil pipe blocking to cause security incident, threatens miner's personal safety.

Summary of the invention

The purpose of this utility model is to provide a kind of oily Monitoring and Controlling circuit of hydraulically operated equipment (HOE).

The technical solution of the utility model is a kind of oily Monitoring and Controlling circuit of hydraulically operated equipment (HOE), comprises Interface Terminal, power circuit, oil quality sensor, CAN transmission circuit, LM3S2965 control chip, digital pipe display circuit, buffer circuit, relay circuit, reset circuit, clock circuit and key circuit, the power interface of Interface Terminal connects the power supply input port of power circuit, and the power output of power circuit connects oil quality sensor, CAN transmission circuit, LM3S2965 control chip, digital pipe display circuit, buffer circuit, relay circuit, reset circuit, clock circuit, the power port of key circuit, the reset mouth of reset circuit connects the reset pin RESET of LM3S2965 control chip, the clock mouth of clock circuit connects clock pin OSC0 and the clock pin OSC1 of LM3S2965 control chip, the CAN bus interface of oil quality sensor connects the CAN bus interface of CAN transmission circuit, the reception pin RX0 of CAN transmission circuit connects CAN bus and sends pin CANTX0 pin, the transmission pin TX0 of CAN transmission circuit connects the spasm pin CANRX0 pin of LM3S2965 control chip, the output pin PE3-PE6 of LM3S2965 control chip connects the segment encode of digital pipe display circuit and controls mouth, the output pin PA0-PA7 of LM3S2965 control chip connects the position of digital pipe display circuit and controls mouth, the button of LM3S2965 control chip detects the button mouth that pin PE0-PE3 connects key circuit, the output pin PB0-PB1 of LM3S2965 control chip connects the control inputs mouth of buffer circuit, the control delivery outlet of buffer circuit is succeeded the Control mouth of appliance circuit, the switching value interface of the switching value output interface terminal of relay circuit.

The utlity model has following technique effect: 1, Real-Time Monitoring: the CAN protocol data frame of the oil quality sensor transmission that oily Monitoring and Controlling circuit Real-Time Monitoring connects by CAN bus, hydraulic oil " temperature ", " kinetic viscosity ", " density ", " specific inductive capacity " four supplemental characteristics are analyzed to taxonomic revision; 2, show: oily Monitoring and Controlling circuit, converting corresponding demonstration data after data analysis taxonomic revision to, shows by charactron; 3, protection output: the data of collating sort and the protection value comparing calculation arranging by button, the prompting of output switch amount signal or control hydraulically operated equipment (HOE) are out of service when data are greater than protection value.The utility model is with respect to traditional artificial detection oil detection method, and this equipment possesses high efficiency, high real-time, high reliability, high stability, compatibility is good and the features such as simple and easy are installed.

Accompanying drawing explanation

Fig. 1 is the utility model circuit block diagram.

Embodiment

As shown in Figure 1, a kind of oily Monitoring and Controlling circuit of hydraulically operated equipment (HOE), comprises Interface Terminal, power circuit, oil quality sensor, CAN transmission circuit, LM3S2965 control chip, digital pipe display circuit, buffer circuit, relay circuit, reset circuit, clock circuit and key circuit, the power interface of Interface Terminal connects the power supply input port of power circuit, and the power output of power circuit connects oil quality sensor, CAN transmission circuit, LM3S2965 control chip, digital pipe display circuit, buffer circuit, relay circuit, reset circuit, clock circuit, the power port of key circuit, the reset mouth of reset circuit connects the reset pin RESET of LM3S2965 control chip, the clock mouth of clock circuit connects clock pin OSC0 and the clock pin OSC1 of LM3S2965 control chip, the CAN bus interface of oil quality sensor connects the CAN bus interface of CAN transmission circuit, the reception pin RX0 of CAN transmission circuit connects CAN bus and sends pin CANTX0 pin, the transmission pin TX0 of CAN transmission circuit connects the spasm pin CANRX0 pin of LM3S2965 control chip, the output pin PE3-PE6 of LM3S2965 control chip connects the segment encode of digital pipe display circuit and controls mouth, the output pin PA0-PA7 of LM3S2965 control chip connects the position of digital pipe display circuit and controls mouth, the button of LM3S2965 control chip detects the button mouth that pin PE0-PE3 connects key circuit, the output pin PB0-PB1 of LM3S2965 control chip connects the control inputs mouth of buffer circuit, the control delivery outlet of buffer circuit is succeeded the Control mouth of appliance circuit, the switching value interface of the switching value output interface terminal of relay circuit.The power supply input port that the power interface of Interface Terminal connects power circuit provides general supply for control circuit, and the power port that the power output of power circuit connects oil quality sensor, CAN transmission circuit, LM3S2965 control chip, digital pipe display circuit, buffer circuit, relay circuit, reset circuit, clock circuit, key circuit provides working power for it.The reset pin RESET of the reset mouth connection LM3S2965 control chip of reset circuit works reset function is provided for LM3S2965 control chip is normal, and the clock pin OSC0 of the clock mouth connection LM3S2965 control chip of clock circuit and clock pin OSC1 are for normally working clock is provided.Oil quality sensor probe accesses to hydraulically operated equipment (HOE) and utilizes " temperature " of tuning fork detection principle to hydraulic oil, " kinetic viscosity ", " density ", " specific inductive capacity " four parameters detect and convert to corresponding CAN bus protocol frame data and by the CAN bus interface of oil quality sensor, are connected to the CAN bus interface of CAN transmission circuit, CAN transmission circuit is connected to the CAN Frame isolation processing of reception LM3S2965 control chip CAN bus by receiving pin RX0 and transmission pin TX0 receives pin CANRX0 and CAN bus transmission pin CANTX0, the CAN Frame of LM3S2965 control chip carries out analytical calculation processing and converts corresponding demonstration data to, the segment encode that output pin PE3 by LM3S2965 control chip controls digital pipe display circuit to output pin PE6 is controlled mouthful and the output pin PA0 of LM3S2965 control chip controls mouth to the position that output pin PA7 controls digital pipe display circuit and carries out " temperature " accordingly, " kinetic viscosity ", " density ", " specific inductive capacity " be a kind of demonstration of parameter wherein, " temperature " that LM3S2965 control chip is processed analytical calculation, " kinetic viscosity ", " density ", " specific inductive capacity " four digital signals and button by LM3S2965 control chip detect pin PE0 and detect " temperature " that key circuit that pin PE3 detects arranges to button, " kinetic viscosity ", " density ", " specific inductive capacity " protection value comparing calculation, when each parameter data signal of analyzing and processing is greater than each parameter protection value of button setting, the output pin PB0 of LM3S2965 control chip and output pin PB1 are connected to the control inputs mouth of buffer circuit, through buffer circuit isolation processing, by controlling delivery outlet, be connected to the Control mouth of relay circuit, the switching value interface protection that pilot relay action is connected to Interface Terminal by switching value output port is exported to control or reminds hydraulically operated equipment (HOE) out of service.

When oily monitoring and control equipment is normally connected to hydraulically operated equipment (HOE) by oil quality sensor, the hydraulic oil of hydraulically operated equipment (HOE) is carried out to real-time detection.The CAN protocol data frame that the single-chip microcomputer of oil monitoring and control equipment sends oil quality sensor carries out analytical calculation processing and converts corresponding driving parameter charactron to showing the parameters such as viscosity, temperature; the data of conversion and the protected data value of button setting are relatively calculated simultaneously; out of service and inform that oil has problem with the protection output switch amount signal controlling hydraulically operated equipment (HOE) that gives warning in advance; prompting changing hydraulic oil, the security incident causing to reduce hydraulically operated equipment (HOE) long-play.

Claims (1)

1. an oily Monitoring and Controlling circuit for hydraulically operated equipment (HOE), comprises Interface Terminal, power circuit, oil quality sensor, CAN transmission circuit, LM3S2965 control chip, digital pipe display circuit, buffer circuit, relay circuit, reset circuit, clock circuit and key circuit, is characterized in that: the power interface of Interface Terminal connects the power supply input port of power circuit, and the power output of power circuit connects oil quality sensor, CAN transmission circuit, LM3S2965 control chip, digital pipe display circuit, buffer circuit, relay circuit, reset circuit, clock circuit, the power port of key circuit, the reset mouth of reset circuit connects the reset pin RESET of LM3S2965 control chip, the clock mouth of clock circuit connects clock pin OSC0 and the clock pin OSC1 of LM3S2965 control chip, the CAN bus interface of oil quality sensor connects the CAN bus interface of CAN transmission circuit, the reception pin RX0 of CAN transmission circuit connects CAN bus and sends pin CANTX0 pin, the transmission pin TX0 of CAN transmission circuit connects the spasm pin CANRX0 pin of LM3S2965 control chip, the output pin PE3-PE6 of LM3S2965 control chip connects the segment encode of digital pipe display circuit and controls mouth, the output pin PA0-PA7 of LM3S2965 control chip connects the position of digital pipe display circuit and controls mouth, the button of LM3S2965 control chip detects the button mouth that pin PE0-PE3 connects key circuit, the output pin PB0-PB1 of LM3S2965 control chip connects the control inputs mouth of buffer circuit, the control delivery outlet of buffer circuit is succeeded the Control mouth of appliance circuit, the switching value interface of the switching value output interface terminal of relay circuit.

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