CN112413115B - Control method and device for auxiliary oil pump - Google Patents
Control method and device for auxiliary oil pump Download PDFInfo
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- CN112413115B CN112413115B CN202011095036.4A CN202011095036A CN112413115B CN 112413115 B CN112413115 B CN 112413115B CN 202011095036 A CN202011095036 A CN 202011095036A CN 112413115 B CN112413115 B CN 112413115B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/48—Control of exclusively fluid gearing hydrodynamic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
- F16H57/0446—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control the supply forming part of the transmission control unit, e.g. for automatic transmissions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0021—Generation or control of line pressure
- F16H61/0025—Supply of control fluid; Pumps therefore
- F16H61/0031—Supply of control fluid; Pumps therefore using auxiliary pumps, e.g. pump driven by a different power source than the engine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0021—Generation or control of line pressure
- F16H2061/0037—Generation or control of line pressure characterised by controlled fluid supply to lubrication circuits of the gearing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention discloses a control method and a control device for an auxiliary oil pump, relates to the technical field of hydraulic couplers, and mainly aims to effectively control the auxiliary oil pump of lubricating oil, improve the control efficiency of the auxiliary oil pump of lubricating oil, reduce the workload of operators and save the labor cost. The method comprises the following steps: judging whether the lubricating oil auxiliary oil pump of the hydraulic coupler meets a preset starting condition or not; if the preset starting condition is met, determining the pressure value of lubricating oil in the hydraulic coupler and the power value corresponding to each auxiliary oil pump; and determining the auxiliary oil pump to be started according to the pressure value and the power value corresponding to each auxiliary oil pump, and sending a starting instruction to the auxiliary oil pump. The invention is suitable for controlling the auxiliary oil pump.
Description
Technical Field
The invention relates to the technical field of fluid couplers, in particular to a control method and a control device for an auxiliary oil pump, and particularly relates to a control method and a control device for a lubricating oil auxiliary oil pump of a fluid coupler.
Background
The hydraulic coupler is a hydraulic transmission device which is used for connecting a power source with a working machine and transmitting torque by the change of liquid momentum torque, and a lubricating oil auxiliary oil pump is used as an important lubricating oil supply source before starting and after stopping of the hydraulic coupler, and whether the lubricating oil auxiliary oil pump can be effectively controlled can directly influence the overall safety of the hydraulic coupler, and the importance is obvious.
Currently, the start and stop of the lubricating oil auxiliary oil pump is generally controlled by manual operation by a person. However, this kind of mode of artificial control lubricating oil auxiliary oil pump can't judge the starting condition or the stop condition of lubricating oil auxiliary oil pump accurately fast, and then leads to can't carrying out effective control to lubricating oil auxiliary oil pump, influences the safe operation of fluid coupling ware, and is lower to the control efficiency of lubricating oil auxiliary oil pump, and in addition, this kind of mode has increased the artifical work load of operation, has wasted a large amount of human costs.
Disclosure of Invention
The invention provides a control method and a control device for an auxiliary oil pump, and mainly aims to effectively control the auxiliary oil pump for lubricating oil, improve the control efficiency of the auxiliary oil pump for lubricating oil, reduce the workload of operators and save the labor cost.
According to a first aspect of the present invention, there is provided a control method of an auxiliary oil pump, comprising:
judging whether the lubricating oil auxiliary oil pump of the hydraulic coupler meets a preset starting condition or not;
if the preset starting condition is met, determining the pressure value of lubricating oil in the hydraulic coupler and the power value corresponding to each auxiliary oil pump;
and determining the auxiliary oil pump to be started according to the pressure value and the power value corresponding to each auxiliary oil pump, and sending a starting instruction to the auxiliary oil pump to be started.
According to a second aspect of the present invention, there is provided a control device of an auxiliary oil pump, comprising:
the judging unit is used for judging whether the hydraulic coupler lubricating oil auxiliary oil pump meets a preset starting condition or not;
the first determining unit is used for determining the pressure value of lubricating oil in the hydraulic coupler and the corresponding power value of each auxiliary oil pump if the preset starting condition is met;
and the second determining unit is used for determining the auxiliary oil pump to be started according to the pressure value and the power value corresponding to each auxiliary oil pump and sending a starting instruction to the auxiliary oil pump.
According to a third aspect of the present invention, there is provided a computer-readable storage medium, having stored thereon a computer program which, when executed by a processor, performs the steps of:
judging whether the lubricating oil auxiliary oil pump of the hydraulic coupler meets a preset starting condition or not;
if the preset starting condition is met, determining the pressure value of lubricating oil in the hydraulic coupler and the power value corresponding to each auxiliary oil pump;
and determining the auxiliary oil pump to be started according to the pressure value and the power value corresponding to each auxiliary oil pump, and sending a starting instruction to the auxiliary oil pump to be started.
According to a fourth aspect of the present invention, there is provided a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the program:
judging whether the lubricating oil auxiliary oil pump of the hydraulic coupler meets a preset starting condition or not;
if the preset starting condition is met, determining the pressure value of lubricating oil in the hydraulic coupler and the power value corresponding to each auxiliary oil pump;
and determining the auxiliary oil pump to be started according to the pressure value and the power value corresponding to each auxiliary oil pump, and sending a starting instruction to the auxiliary oil pump.
Compared with the mode of manually controlling the starting and stopping of the lubricating oil auxiliary oil pump at present, the control method and the control device of the auxiliary oil pump provided by the invention have the advantages that whether the lubricating oil auxiliary oil pump of the hydraulic coupler meets the preset starting condition is judged; if the preset starting condition is met, determining the pressure value of lubricating oil in the hydraulic coupler and the power value corresponding to each auxiliary oil pump; meanwhile, the auxiliary oil pump to be started is determined according to the pressure value and the power value corresponding to each auxiliary oil pump, and a starting instruction is sent to the auxiliary oil pump, so that the lubricating oil auxiliary oil pump can be effectively controlled, the safe production and stable operation of the hydraulic coupler are ensured, the workload of operators is reduced, the control efficiency of the lubricating oil auxiliary oil pump is improved, and the labor cost is saved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and do not constitute a limitation of the invention. In the drawings:
fig. 1 is a flowchart illustrating a control method of an auxiliary oil pump according to an embodiment of the present invention;
FIG. 2 is a flow chart illustrating another method of controlling an auxiliary oil pump according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram illustrating a control apparatus of an auxiliary oil pump according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram showing another control device for an auxiliary oil pump according to an embodiment of the present invention;
fig. 5 shows a physical structure diagram of a computer device according to an embodiment of the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Like the background art, at present, this kind of mode of artificial control lubricating oil auxiliary oil pump can't accurately judge lubricating oil auxiliary oil pump's start condition or stop condition fast, and then leads to unable effective control to lubricating oil auxiliary oil pump, influences the safe operation of fluid coupling ware, and is lower to lubricating oil auxiliary oil pump's control efficiency, and in addition, this kind of mode has increased the artifical work load of operation, has wasted a large amount of human costs.
In order to solve the above problem, an embodiment of the present invention provides a control method of an auxiliary oil pump, as shown in fig. 1, the method including:
101. and judging whether the lubricating oil auxiliary oil pump of the hydraulic coupler meets the preset starting condition or not.
For the embodiment of the present invention, in order to overcome the defect of manually controlling the lubricating oil auxiliary oil pump of the fluid coupling in the prior art, the embodiment of the present invention provides a manner of automatically controlling the lubricating oil auxiliary oil pump, the main execution body of the embodiment of the present invention is a device or an apparatus capable of controlling the start and stop of the lubricating oil auxiliary oil pump, the embodiment of the present invention can detect the fluid coupling in real time, determine whether the start condition of the lubricating oil auxiliary oil pump is currently satisfied, and if the start condition is satisfied, control the lubricating oil auxiliary oil pump to start, ensure that the lubricating oil auxiliary oil pump can provide stable lubricating oil for the fluid coupling at any time when needed, so that the fluid coupling can be safely produced and stably operated, wherein the number of the lubricating oil auxiliary oil pumps in the fluid coupling can be one or more, the number of the auxiliary oil pumps is set according to the actual requirements when the fluid coupling is designed, the embodiment of the present invention is not particularly limited.
Specifically, in order to determine whether the hydraulic coupler lubricating oil auxiliary oil pump meets the preset starting condition, step 101 specifically includes: judging whether the unit stops running or not; if the unit stops running, determining that the auxiliary oil pump meets a preset starting condition; and/or, determining whether the fluid coupling is operating in reverse; if the hydraulic coupler operates reversely, determining that the auxiliary oil pump meets a preset starting condition; and/or judging whether the auxiliary oil pump stops running when the rotating speed of the fluid coupling is not zero; if the auxiliary oil pump stops running, determining that the auxiliary oil pump meets a preset starting condition; and/or judging whether the temperature of the lubricating oil after being cooled is greater than a first preset temperature when a heating oil tank of the fluid coupling operates; if the temperature is higher than the first preset temperature, determining that the auxiliary oil pump meets a preset starting condition; and/or judging whether the pressure value of the lubricating oil is smaller than a second preset pressure value when the unit operates; and if the pressure value is smaller than the second preset pressure value, determining that the auxiliary oil pump meets a preset starting condition. Wherein, predetermine the start condition and set for according to the actual start condition of lubricating oil auxiliary oil pump, first preset temperature and the second pressure value of predetermineeing can be set for according to the actual temperature value and the pressure value of lubricating oil when fluid coupling ware operation, it should be said that, in order to ensure that fluid coupling ware can safe production and steady operation, first preset temperature should not set for too high, and the second is preset the pressure value and should not set for too low.
For example, when the unit stops running, including the interlocking shutdown and the normal shutdown of the unit, it is determined that the hydraulic coupler lubricating oil auxiliary oil pump meets the preset starting condition; or when the hydraulic coupler operates reversely and the lubricating oil auxiliary oil pump stops operating, determining that the lubricating oil auxiliary oil pump of the hydraulic coupler meets the preset starting condition; or when the rotating speed of the hydraulic coupler is not zero and the lubricating oil auxiliary oil pump stops running, determining that the lubricating oil auxiliary oil pump of the hydraulic coupler meets the preset starting condition; or when the oil tank heater operates and the temperature of the cooled lubricating oil is more than 5 ℃, determining that the auxiliary lubricating oil pump of the hydraulic coupler meets the preset starting condition; or when the unit operates and the pressure value of the filtered lubricating oil is smaller than 1.5Bar, determining that the lubricating oil auxiliary oil pump of the hydraulic coupler meets the preset starting condition, and therefore when any one of the conditions is met, determining that the lubricating oil auxiliary oil pump meets the starting condition, and controlling the lubricating oil auxiliary oil pump to start is needed to ensure the stable operation of the hydraulic coupler.
102. And if the preset starting condition is met, determining the pressure value of the lubricating oil in the hydraulic coupler and the power value corresponding to each auxiliary oil pump.
For the embodiment of the present invention, the power values corresponding to the auxiliary oil pumps related to the fluid coupling may be the same or different, and the embodiment of the present invention is not limited specifically, the control device may store the power values corresponding to the auxiliary oil pumps in the fluid coupling in advance, when it is determined that the auxiliary oil pumps need to be controlled to start, the current pressure value of the lubricating oil in the fluid coupling may be obtained, specifically, the pressure value of the lubricating oil in the fluid coupling may be collected by a sensor, and further, according to the collected pressure value of the lubricating oil and the power values corresponding to the auxiliary oil pumps, the corresponding auxiliary oil pump is selected from the auxiliary oil pumps to start.
103. And determining the auxiliary oil pump to be started according to the pressure value and the power value corresponding to each auxiliary oil pump, and sending a starting instruction to the auxiliary oil pump.
For the embodiment of the invention, if the power values corresponding to the auxiliary oil pumps in the hydraulic coupler are the same, the corresponding number of auxiliary oil pumps are selected according to the current pressure value of the lubricating oil and the power value corresponding to the auxiliary oil pumps, and a starting instruction is sent to the selected auxiliary oil pumps to control the auxiliary oil pumps to be started; if the power values corresponding to the auxiliary oil pumps in the hydraulic coupler are different, the auxiliary oil pumps can be sequenced according to the power values corresponding to the auxiliary oil pumps, and the corresponding auxiliary oil pumps are selected and sent with a starting instruction to control the starting of the auxiliary oil pumps according to the sequencing result and the current pressure value of the lubricating oil.
Furthermore, the auxiliary oil pump which is not started is used as a standby, when any auxiliary oil pump which is operated fails, the auxiliary oil pump which is used as the standby is used, so that the auxiliary oil pump for lubricating oil can provide stable lubricating oil for the fluid coupling, meanwhile, at least 2 auxiliary oil pumps are arranged, the function of adjusting the pressure of the lubricating oil can be achieved, and when the pressure value of the lubricating oil is lower, the pressure value of the lubricating oil can be rapidly increased, so that the safe production and the stable operation of the fluid coupling can be ensured.
For example, two auxiliary oil pumps are respectively an auxiliary oil pump 1 and an auxiliary oil pump 2 in the fluid coupling, the power value of the auxiliary oil pump 1 is larger than that of the auxiliary oil pump 2, if the current pressure value of the lubricating oil is smaller than 0.8Bar, the auxiliary oil pump 1 and the auxiliary oil pump 2 are jointly determined as the auxiliary oil pumps to be started, and the control device sends starting instructions to the auxiliary oil pump 1 and the auxiliary oil pump 2 respectively so that the pressure value of the lubricating oil can be rapidly increased by putting the auxiliary oil pump 1 and the auxiliary oil pump 2 into use simultaneously when the pressure value of the lubricating oil of the fluid coupling after passing through a filter is very low; if the current pressure value of the lubricating oil is greater than or equal to 0.8Bar and less than 1.5Bar, the auxiliary oil pump 1 is determined as an auxiliary oil pump to be started, and the control device sends a starting command to the auxiliary oil pump 1 so that the pressure value of the lubricating oil can be increased quickly by putting the auxiliary oil pump 1 into use when the pressure value of the lubricating oil of the fluid coupling after passing through the filter is low; if the current pressure value of the lubricating oil is greater than or equal to 1.5Bar and less than 1.7Bar, the auxiliary oil pump 2 is determined as the auxiliary oil pump to be started, the control device sends a starting instruction to the auxiliary oil pump 2, so that when the pressure value of the lubricating oil of the hydraulic coupler after passing through the filter is lower than the normal starting pressure value of the auxiliary oil pump, the pressure value of the lubricating oil can be gradually increased by putting the auxiliary oil pump 2 into use, the corresponding oil pump is controlled to be started through the current pressure value of the lubricating oil and the power value of each auxiliary oil pump, and the safe generation and stable operation of the hydraulic coupler are effectively protected.
Compared with the mode of manually controlling the starting and stopping of the lubricating oil auxiliary oil pump at present, the control method of the auxiliary oil pump provided by the embodiment of the invention judges whether the lubricating oil auxiliary oil pump of the hydraulic coupler meets the preset starting condition or not; if the preset starting condition is met, determining the pressure value of lubricating oil in the hydraulic coupler and the power value corresponding to each auxiliary oil pump; meanwhile, according to the pressure value and the power value corresponding to each auxiliary oil pump, the auxiliary oil pump to be started is determined, and a starting instruction is sent to the auxiliary oil pump, so that the lubricating oil auxiliary oil pump can be effectively controlled, the safe production and stable operation of the hydraulic coupler are ensured, meanwhile, the workload of operators is reduced, the control efficiency of the lubricating oil auxiliary oil pump is improved, the labor cost is saved, in addition, according to the current pressure value of lubricating oil and the power value corresponding to each auxiliary oil pump, the corresponding auxiliary oil pump is selected to be started, the effect of adjusting the pressure value of the lubricating oil can be achieved, and the stable operation of the hydraulic coupler is ensured.
Further, in order to better explain the above process of controlling the start of the auxiliary oil pump, as a refinement and extension of the above embodiment, an embodiment of the present invention provides another control method for an auxiliary oil pump, as shown in fig. 2, the method includes:
201. and judging whether the lubricating oil auxiliary oil pump of the hydraulic coupler meets the preset starting condition or not.
For the embodiment of the present invention, before starting the lubricating oil auxiliary oil pump of the fluid coupler, it is necessary to determine in advance whether the starting condition of the auxiliary oil pump is satisfied, and the specific manner of determining whether the lubricating oil auxiliary oil pump of the fluid coupler satisfies the preset starting condition is described in step 101, which is not described herein again, in addition, when the lubricating oil auxiliary oil pump of the fluid coupler does not satisfy the preset starting condition, but the starting auxiliary oil pump is needed at this time, it may be determined whether the lubricating oil auxiliary oil pump of the fluid coupler satisfies other starting conditions, and if other starting conditions are satisfied, the auxiliary oil pump may be started; if the other starting conditions are not met, determining that the auxiliary oil pump cannot be started, specifically, if the auxiliary oil pump for the lubricating oil of the fluid coupling does not meet the preset starting conditions but the auxiliary oil pump needs to be started at the moment, continuously judging whether the normal temperature of the fluid coupling is lower than the preset bearing temperature, if so, judging whether the temperature of the lubricating oil before cooling is lower than the preset lubricating oil temperature before cooling, if so, judging whether the temperature of the lubricating oil after cooling is lower than the preset lubricating oil temperature after cooling, if so, judging whether the temperature of the working oil before cooling is lower than the preset working oil temperature before cooling, if so, judging whether the temperature of the working oil after cooling is lower than the preset working oil temperature after cooling, judging whether the liquid level of an oil tank of the hydraulic coupler is within a preset oil tank liquid level range or not, and if so, judging whether the cooling system normally operates or not; if the cooling system runs normally, the auxiliary oil pump can be started, and therefore when the auxiliary oil pump needs to be started, although the auxiliary oil pump does not meet the preset starting condition, the auxiliary oil pump can be started by judging other starting conditions, stable lubricating oil can be provided for the hydrodynamic coupling when needed, and stable running of the hydrodynamic coupling is guaranteed.
202. And if the preset starting condition is met, determining the pressure value of the lubricating oil in the hydraulic coupler and the power value corresponding to each auxiliary oil pump.
For the embodiment of the present invention, the fluid coupling includes a plurality of auxiliary oil pumps, the power values corresponding to the respective auxiliary oil pumps may be the same or different, when the auxiliary oil pumps meet the start condition, in order to select the corresponding auxiliary oil pump to be started to perform the function of adjusting the pressure value of the lubricating oil, it is necessary to obtain the current pressure value of the lubricating oil of the fluid coupling and the power value corresponding to the respective auxiliary oil pumps, the power value corresponding to the respective auxiliary oil pumps may be stored in the control device in advance, and the pressure value of the lubricating oil may be monitored in real time by using the sensor, so as to select the corresponding auxiliary oil pump from the respective auxiliary oil pumps to be started according to the obtained pressure value of the lubricating oil and the power value corresponding to the respective auxiliary oil pumps.
203. And determining the auxiliary oil pump to be started according to the pressure value and the power value corresponding to each auxiliary oil pump, and sending a starting instruction to the auxiliary oil pump.
For the embodiment of the present invention, if the power values corresponding to the auxiliary oil pumps are the same, step 203 specifically includes: and if the power values corresponding to the auxiliary oil pumps are the same, determining the number of the auxiliary oil pumps to be started according to the pressure values and the power values, selecting the auxiliary oil pumps in the number from the auxiliary oil pumps to send starting instructions to the auxiliary oil pumps, and taking the residual auxiliary oil pumps as backup oil pumps of the hydraulic coupler. Specifically, a preset power table is inquired according to the current pressure value of the lubricating oil, a pressure range where the current pressure value of the lubricating oil is located is determined, and the total power corresponding to the auxiliary oil pumps is determined according to the pressure range, the total power of the auxiliary oil pumps required by different pressure ranges where the lubricating oil is located is stored in the preset power table, further, the required number of the auxiliary oil pumps is obtained by dividing the determined total power by the power value corresponding to each auxiliary oil pump, the auxiliary oil pumps of the number are selected from the auxiliary oil pumps of the hydraulic coupler, the auxiliary oil pumps are determined to be auxiliary oil pumps to be started, a starting instruction is sent to the auxiliary oil pumps, for example, 3 auxiliary oil pumps are available in the hydraulic coupler, the power corresponding to each auxiliary oil pump is the same, the number of the required auxiliary oil pumps is determined to be 2, and then two auxiliary oil pumps are selected from the 3 auxiliary oil pumps and determined to be auxiliary oil pumps to be started, the remaining auxiliary oil pump is used as a backup oil pump, and when any one of the two operating auxiliary oil pumps fails, the backup oil pump can be used for replacement, so that the two operating auxiliary oil pumps can be used for adjusting the lubricating oil pressure value, and the backup oil pump can be put into use when the operating auxiliary oil pump fails, so that the stability of the lubricating oil pressure value and the stable operation of the hydraulic coupler are ensured.
Further, a corresponding number of auxiliary oil pumps can be directly selected to control the starting of the lubricating oil according to the pressure range of the current pressure value of the lubricating oil, for example, three auxiliary oil pumps are involved in the hydraulic coupler, and if the current pressure value of the lubricating oil after passing through the filter is smaller than a first preset pressure value (if the current pressure value is smaller than 0.8Bar), the three auxiliary oil pumps are jointly determined as the auxiliary oil pumps to be started, and a starting instruction is sent to the auxiliary oil pumps; if the current pressure value of the lubricating oil after passing through the filter is greater than or equal to a first preset pressure value and smaller than a second preset pressure value (the current pressure value is greater than or equal to 0.8Bar and smaller than 1.5Bar), determining two auxiliary oil pumps in the three auxiliary oil pumps as auxiliary oil pumps to be started, sending a starting instruction to the auxiliary oil pumps, and simultaneously taking the remaining auxiliary oil pump as a standby auxiliary oil pump; and if the current pressure value of the lubricating oil after passing through the filter is greater than or equal to a second preset pressure value and smaller than a third preset pressure value (if the current pressure value is greater than or equal to 1.5Bar and smaller than 1.7Bar), determining one auxiliary oil pump in the three auxiliary oil pumps as an auxiliary oil pump to be started, sending a starting instruction to the auxiliary oil pump, and taking the remaining two auxiliary oil pumps as standby auxiliary oil pumps.
For the embodiment of the present invention, if the power values corresponding to the auxiliary oil pumps are different, step 203 specifically includes: and if the power values corresponding to the auxiliary oil pumps are different, sequencing the auxiliary oil pumps according to the corresponding power values, determining the auxiliary oil pump to be started according to the sequencing result and the pressure value, and sending a starting instruction to the auxiliary oil pump. Wherein, each auxiliary oil pump includes first auxiliary oil pump and second auxiliary oil pump, the power value that first auxiliary oil pump corresponds is greater than the power value that the second auxiliary oil pump corresponds, according to sequencing result with the pressure value, confirm the auxiliary oil pump of waiting to open, include: if the pressure value is smaller than a first preset pressure value, determining the first auxiliary oil pump and the second auxiliary oil pump as auxiliary oil pumps to be started; if the pressure value is greater than or equal to a first preset pressure value and less than a second preset pressure value, determining the first auxiliary oil pump as an auxiliary oil pump to be started; and if the pressure value is greater than or equal to a second preset pressure value and less than a third preset pressure value, determining the second auxiliary oil pump as an auxiliary oil pump to be started. Further, each auxiliary oil pump further includes a third auxiliary oil pump, a power value corresponding to the second auxiliary oil pump is greater than a power value corresponding to the third auxiliary oil pump, and determining the auxiliary oil pump to be started according to the sequencing result and the pressure value includes: the second auxiliary oil pump is used as a backup oil pump of the fluid coupling; if the pressure value is smaller than a first preset pressure value, determining the first auxiliary oil pump and the third auxiliary oil pump as auxiliary oil pumps to be started; if the pressure value is greater than or equal to a first preset pressure value and less than a second preset pressure value, determining the first auxiliary oil pump as an auxiliary oil pump to be started; and if the pressure value is greater than or equal to a second preset pressure value and less than a third preset pressure value, determining the third auxiliary oil pump as an auxiliary oil pump to be started. Wherein, the pressure value of lubricating oil can be set for according to the pressure value when the not equidimension pressure is reported to the police to first preset pressure value, second preset pressure value and third preset pressure value.
For example, the hydraulic coupler includes an auxiliary oil pump 1, an auxiliary oil pump 2 and an auxiliary oil pump 3, which are respectively the auxiliary oil pump 1, the auxiliary oil pump 2 and the auxiliary oil pump 3 according to the sequencing result of power from high to low, if the current pressure value of the lubricating oil is less than 0.8Bar, the auxiliary oil pump 1 and the auxiliary oil pump 3 are jointly determined as the auxiliary oil pump to be started, and the auxiliary oil pump 2 is used as a standby auxiliary oil pump; if the current pressure value of the lubricating oil is greater than or equal to 0.8Bar and less than 1.5Bar, determining the auxiliary oil pump 1 as an auxiliary oil pump to be started, and taking the auxiliary oil pump 2 and the auxiliary oil pump 3 as standby auxiliary oil pumps; if the current pressure value of the lubricating oil is greater than or equal to 1.5 Bar. And the pressure value is less than 1.7Bar, the auxiliary oil pump 3 is determined as an auxiliary oil pump to be started, the auxiliary oil pump 1 and the auxiliary oil pump 2 are used as standby auxiliary oil pumps, and therefore the corresponding auxiliary oil pumps can be controlled to be started according to the pressure range of the current pressure value of the lubricating oil, and the pressure value of the lubricating oil can be adjusted in time.
In addition, when the power values corresponding to the auxiliary oil pumps are different, an embodiment of the present invention further provides that a corresponding auxiliary oil pump is selected from the auxiliary oil pumps and is controlled to be turned on, and step 203 specifically includes: if the power values corresponding to the auxiliary oil pumps are different, judging whether the total power of the auxiliary oil pumps determined by inquiring a preset power meter is larger than the maximum value of the power values corresponding to the auxiliary oil pumps; if the total power of the auxiliary oil pumps is larger than the maximum value, adding power values corresponding to any number of auxiliary oil pumps in each auxiliary oil pump to obtain a plurality of addition results; and determining each auxiliary oil pump corresponding to the addition result which is the closest to the total power of the auxiliary oil pumps in the plurality of addition results as the auxiliary oil pump to be started. And if the total power of the auxiliary oil pumps is less than or equal to the maximum value, determining the auxiliary oil pump corresponding to the power value which is the closest to the total power of the auxiliary oil pumps in all power values as the auxiliary oil pump to be started.
204. And judging whether the running auxiliary oil pump meets a preset stop condition or not.
For the embodiment of the present invention, when it is desired to control the auxiliary oil pump to stop operating, it is necessary to first determine whether the auxiliary oil pump meets a preset stop condition, and if the preset stop condition is met, the operating auxiliary oil pump is controlled to stop operating, and step 204 specifically includes: judging whether an oil tank heater of the hydraulic coupler stops running or not; if the oil tank heater stops running, judging whether the time length of the minimum position of the scoop tube of the hydraulic coupler exceeds a first preset time length when the rotating speed of the hydraulic coupler is zero; if the time exceeds the first preset time, judging whether the temperature of the lubricating oil is less than a second preset temperature or not; if the pressure value is less than the second preset temperature, judging whether the pressure value of the lubricating oil is greater than or equal to a third preset pressure value after the unit operates for a second preset time; if the pressure value is greater than or equal to the third preset pressure value, the auxiliary oil pump in operation is determined to meet the preset stop condition, namely when the conditions are all met, the auxiliary oil pump is determined to meet the preset stop condition, the auxiliary oil pump is controlled to stop operation, and the auxiliary oil pump is prevented from stopping operation at will after being started.
For example, whether the oil tank heater stops running or not is judged, if the oil tank heater stops running, whether the time length that the position of the scoop tube is at the minimum position when the rotation speed of the hydraulic coupler is zero exceeds 5 minutes or not is judged, if the time length exceeds 5 minutes, whether the temperature of the cooled lubricating oil is less than 0 ℃ or not is judged when the auxiliary oil pump runs, if the temperature is less than 0 ℃, whether the pressure value of the filtered lubricating oil is greater than 2.2Bar or not is judged when the running time length of the unit exceeds 30S or not, and if the pressure value is greater than 2.2Bar, the auxiliary oil pump is determined to meet the stop condition. Whereby it is determined that the auxiliary oil pump satisfies the stop condition when the above conditions are all satisfied.
205. And if the preset stop condition is met, sending an instruction of stopping the operation to the operating auxiliary oil pump.
For the embodiment of the invention, when the operating auxiliary oil pump meets the stop condition, the operating auxiliary oil pump is sent with the instruction of stopping operation to control the operating auxiliary oil pump to stop operation, so that the embodiment of the invention not only can effectively control the auxiliary oil pump to be started, but also can control the auxiliary oil pump to be stopped, and realizes the automatic control of the auxiliary oil pump.
Compared with the mode of manually controlling the starting and stopping of the lubricating oil auxiliary oil pump at present, the method for controlling the auxiliary oil pump of the hydraulic coupler provided by the embodiment of the invention judges whether the lubricating oil auxiliary oil pump of the hydraulic coupler meets the preset starting condition or not; if the preset starting condition is met, determining the pressure value of lubricating oil in the hydraulic coupler and the power value corresponding to each auxiliary oil pump; meanwhile, according to the pressure value and the power value corresponding to each auxiliary oil pump, the auxiliary oil pump to be started is determined, and a starting instruction is sent to the auxiliary oil pump, so that the lubricating oil auxiliary oil pump can be effectively controlled, the safe production and stable operation of the hydraulic coupler are ensured, meanwhile, the workload of operators is reduced, the control efficiency of the lubricating oil auxiliary oil pump is improved, the labor cost is saved, in addition, according to the current pressure value of lubricating oil and the power value corresponding to each auxiliary oil pump, the corresponding auxiliary oil pump is selected to be started, the effect of adjusting the pressure value of the lubricating oil can be achieved, and the stable operation of the hydraulic coupler is ensured.
Further, as a specific implementation of fig. 1, an embodiment of the present invention provides a control device of an auxiliary oil pump, as shown in fig. 3, the device including: a judging unit 31, a first determining unit 32, and a second determining unit 33.
The determination unit 31 may be configured to determine whether the hydraulic coupler lubricating oil auxiliary oil pump meets a preset starting condition. The judging unit 31 is a main functional module in the device for judging whether the hydraulic coupler lubricating oil auxiliary oil pump meets the preset starting condition.
The first determining unit 32 may be configured to determine a pressure value of the lubricating oil in the fluid coupling and a power value corresponding to each auxiliary oil pump if the preset starting condition is satisfied. The first determining unit 32 is a main functional module, which is also a core module, for determining the pressure value of the lubricating oil in the fluid coupling and the power value corresponding to each auxiliary oil pump if the preset starting condition is satisfied in the present apparatus.
The second determining unit 33 may be configured to determine the auxiliary oil pump to be started according to the pressure value and the power value corresponding to each auxiliary oil pump, and send a start instruction to the auxiliary oil pump. The second determining unit 33 is a main functional module, which is also a core module, in the present apparatus, and determines the auxiliary oil pump to be started according to the pressure value and the power value corresponding to each auxiliary oil pump, and sends a start instruction to the auxiliary oil pump.
For the embodiment of the present invention, in order to determine the auxiliary oil pump to be turned on, as shown in fig. 4, the second determining unit 33 includes: a first determination module 331 and a second determination module 332.
The first determining module 331 may be configured to determine, according to the pressure value and the power value, the number of auxiliary oil pumps to be started if the power values corresponding to the auxiliary oil pumps are the same, select the number of auxiliary oil pumps from the auxiliary oil pumps to send a start instruction to the auxiliary oil pumps, and use remaining auxiliary oil pumps as backup oil pumps of the fluid coupling.
The second determining module 332 may be configured to, if the power values corresponding to the auxiliary oil pumps are different, sequence the auxiliary oil pumps according to the corresponding power values, determine an auxiliary oil pump to be started according to a sequencing result and the pressure value, and send a start instruction to the auxiliary oil pump.
Further, each auxiliary oil pump includes a first auxiliary oil pump and a second auxiliary oil pump, a power value corresponding to the first auxiliary oil pump is greater than a power value corresponding to the second auxiliary oil pump, and the second determining module 332 is specifically configured to determine the first auxiliary oil pump and the second auxiliary oil pump together as the auxiliary oil pump to be started if the pressure value is smaller than a first preset pressure value; if the pressure value is greater than or equal to a first preset pressure value and less than a second preset pressure value, determining the first auxiliary oil pump as an auxiliary oil pump to be started; and if the pressure value is greater than or equal to a second preset pressure value and less than a third preset pressure value, determining the second auxiliary oil pump as an auxiliary oil pump to be started.
Further, each auxiliary oil pump further includes a third auxiliary oil pump, a power value corresponding to the second auxiliary oil pump is greater than a power value corresponding to the third auxiliary oil pump, and the second determining module 332 may be specifically configured to use the second auxiliary oil pump as a backup oil pump of the fluid coupling; if the pressure value is smaller than a first preset pressure value, determining the first auxiliary oil pump and the third auxiliary oil pump as auxiliary oil pumps to be started; if the pressure value is greater than or equal to a first preset pressure value and less than a second preset pressure value, determining the first auxiliary oil pump as an auxiliary oil pump to be started; and if the pressure value is greater than or equal to a second preset pressure value and less than a third preset pressure value, determining the third auxiliary oil pump as the auxiliary oil pump to be started.
Further, in order to determine whether the fluid coupling lubricating oil auxiliary oil pump satisfies the preset starting condition, the determination unit 31 includes: a decision block 311 and a determination block 312.
The judging module 311 may be configured to judge whether the unit stops operating.
The determining module 312 may be configured to determine that the auxiliary oil pump meets a preset starting condition if the unit stops operating.
The determining module 311 may be further configured to determine whether the fluid coupling is operating in reverse.
The determination module 312 may be further configured to determine that the auxiliary oil pump meets a preset starting condition if the fluid coupling is operating in reverse.
The determining module 311 may be further configured to determine whether the auxiliary oil pump stops operating when the rotational speed of the fluid coupling is not zero.
The determining module 312 may be further configured to determine that the auxiliary oil pump meets a preset starting condition if the auxiliary oil pump stops operating.
The determining module 311 may be further configured to determine whether a temperature of the lubricating oil after being cooled is greater than a first preset temperature when the fluid coupling oil tank heater is in operation.
The determining module 312 may be further configured to determine that the auxiliary oil pump meets a preset starting condition if the temperature is higher than the first preset temperature.
The determining module 311 may be further configured to determine whether the pressure value of the lubricating oil is smaller than a second preset pressure value when the unit operates.
The determining module can be further used for determining that the auxiliary oil pump meets a preset starting condition if the pressure value is smaller than the second preset pressure value.
Further, in order to control the auxiliary oil pump to stop, the apparatus further includes a sending unit 34.
The determination unit 31 may be further configured to determine whether the operating auxiliary oil pump satisfies a preset stop condition.
The sending unit 34 may be further configured to send an instruction to stop the operation of the auxiliary oil pump if the preset stop condition is satisfied.
Further, in order to determine whether the operating auxiliary oil pump meets the preset stop condition, the determining module 311 may be further configured to determine whether the tank heater of the fluid coupling stops operating.
The determining module 311 may be further configured to determine whether a duration that a scoop tube of the fluid coupling is located at a minimum position exceeds a first preset duration when the rotational speed of the fluid coupling is zero, if the tank heater stops operating.
The determining module 311 may be further configured to determine whether the temperature of the lubricating oil is less than a second preset temperature if the first preset time period is exceeded.
The determining module 311 may be further configured to determine whether the pressure value of the lubricating oil is greater than or equal to a third preset pressure value after the unit operates for a second preset time period if the temperature is less than the second preset temperature.
The determining module 312 may be further configured to determine that the operating auxiliary oil pump meets a preset stop condition if the operating auxiliary oil pump is greater than or equal to a third preset pressure value.
It should be noted that other corresponding descriptions of the functional modules related to the control device of the auxiliary oil pump provided in the embodiment of the present invention may refer to the corresponding description of the method shown in fig. 1, and are not repeated herein.
According to the technical scheme, whether the auxiliary oil pump of the hydraulic coupler lubricating oil meets the preset starting condition is judged; if the preset starting condition is met, determining the pressure value of lubricating oil in the hydraulic coupler and the power value corresponding to each auxiliary oil pump; meanwhile, according to the pressure value and the power value corresponding to each auxiliary oil pump, the auxiliary oil pump to be started is determined, and a starting instruction is sent to the auxiliary oil pump, so that the lubricating oil auxiliary oil pump can be effectively controlled, the safe production and stable operation of the hydraulic coupler are ensured, meanwhile, the workload of operators is reduced, the control efficiency of the lubricating oil auxiliary oil pump is improved, the labor cost is saved, in addition, according to the current pressure value of lubricating oil and the power value corresponding to each auxiliary oil pump, the corresponding auxiliary oil pump is selected to be started, the effect of adjusting the pressure value of the lubricating oil can be achieved, and the stable operation of the hydraulic coupler is ensured.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A control method of an auxiliary oil pump, characterized by comprising:
judging whether the lubricating oil auxiliary oil pump of the hydraulic coupler meets a preset starting condition or not;
if the preset starting condition is met, determining the pressure value of lubricating oil in the hydraulic coupler and the power value corresponding to each auxiliary oil pump;
determining an auxiliary oil pump to be started according to the pressure value and the power value corresponding to each auxiliary oil pump, and sending a starting instruction to the auxiliary oil pump;
wherein, according to the pressure value and the power value that each auxiliary oil pump corresponds, confirm the auxiliary oil pump of waiting to open to it sends start instruction, include:
if the power values corresponding to the auxiliary oil pumps are the same, determining the number of the auxiliary oil pumps to be started according to the pressure values and the power values, selecting the auxiliary oil pumps of the number from the auxiliary oil pumps to send starting instructions to the auxiliary oil pumps, and taking the rest auxiliary oil pumps as backup oil pumps of the hydraulic coupler;
and if the power values corresponding to the auxiliary oil pumps are different, sequencing the auxiliary oil pumps according to the corresponding power values, determining the auxiliary oil pump to be started according to the sequencing result and the pressure value, and sending a starting instruction to the auxiliary oil pump.
2. The method of claim 1, wherein each of the plurality of supplemental oil pumps comprises a first supplemental oil pump and a second supplemental oil pump, a power value corresponding to the first supplemental oil pump is greater than a power value corresponding to the second supplemental oil pump, and determining the supplemental oil pump to be started according to the sequencing result and the pressure value comprises:
if the pressure value is smaller than a first preset pressure value, determining the first auxiliary oil pump and the second auxiliary oil pump as auxiliary oil pumps to be started;
if the pressure value is greater than or equal to a first preset pressure value and less than a second preset pressure value, determining the first auxiliary oil pump as an auxiliary oil pump to be started;
and if the pressure value is greater than or equal to a second preset pressure value and less than a third preset pressure value, determining the second auxiliary oil pump as an auxiliary oil pump to be started.
3. The method of claim 2, wherein each of the plurality of supplemental oil pumps further comprises a third supplemental oil pump, wherein the second supplemental oil pump corresponds to a power value greater than a power value corresponding to the third supplemental oil pump, and wherein determining the supplemental oil pump to be started based on the sequencing result and the pressure value comprises:
using the second auxiliary oil pump as a backup oil pump of the fluid coupling;
if the pressure value is smaller than a first preset pressure value, determining the first auxiliary oil pump and the third auxiliary oil pump as auxiliary oil pumps to be started;
if the pressure value is greater than or equal to a first preset pressure value and less than a second preset pressure value, determining the first auxiliary oil pump as an auxiliary oil pump to be started;
and if the pressure value is greater than or equal to a second preset pressure value and less than a third preset pressure value, determining the third auxiliary oil pump as an auxiliary oil pump to be started.
4. The method of any of claims 1-3, wherein said determining whether the fluid coupling lube auxiliary oil pump meets a predetermined start condition comprises:
judging whether the unit stops running or not;
if the unit stops running, determining that the auxiliary oil pump meets a preset starting condition; and/or the presence of a gas in the interior of the container,
determining whether the fluid coupling is operating in reverse;
if the hydraulic coupler operates reversely, determining that the auxiliary oil pump meets a preset starting condition; and/or the presence of a gas in the interior of the container,
judging whether the auxiliary oil pump stops operating when the rotating speed of the fluid coupling is not zero;
if the auxiliary oil pump stops running, determining that the auxiliary oil pump meets a preset starting condition; and/or the presence of a gas in the atmosphere,
judging whether the temperature of the lubricating oil after being cooled is greater than a first preset temperature when the hydraulic coupler oil tank heater operates;
if the temperature is higher than the first preset temperature, determining that the auxiliary oil pump meets a preset starting condition; and/or the presence of a gas in the interior of the container,
judging whether the pressure value of the lubricating oil is smaller than a second preset pressure value when the unit operates;
and if the pressure value is smaller than the second preset pressure value, determining that the auxiliary oil pump meets a preset starting condition.
5. The method according to any one of claims 1-3, wherein after determining the auxiliary oil pump to be started and sending a start command to the auxiliary oil pump according to the pressure value and the power value corresponding to each auxiliary oil pump, the method further comprises:
judging whether the running auxiliary oil pump meets a preset stop condition or not;
and if the preset stop condition is met, sending an instruction of stopping the operation to the operating auxiliary oil pump.
6. The method of claim 5, wherein said determining whether the operating auxiliary oil pump satisfies a preset stop condition comprises:
judging whether an oil tank heater of the hydraulic coupler stops running or not;
if the oil tank heater stops running, judging whether the time length of the minimum position of the scoop tube of the hydraulic coupler exceeds a first preset time length when the rotating speed of the hydraulic coupler is zero;
if the time exceeds the first preset time, judging whether the temperature of the lubricating oil is less than a second preset temperature or not;
if the pressure value is less than the second preset temperature, judging whether the pressure value of the lubricating oil is greater than or equal to a third preset pressure value after the unit operates for a second preset time;
and if the pressure value is larger than or equal to a third preset pressure value, determining that the running auxiliary oil pump meets a preset stop condition.
7. A control device of an auxiliary oil pump, characterized by comprising:
the judging unit is used for judging whether the hydraulic coupler lubricating oil auxiliary oil pump meets a preset starting condition or not;
the first determining unit is used for determining the pressure value of lubricating oil in the hydraulic coupler and the corresponding power value of each auxiliary oil pump if the preset starting condition is met;
the second determining unit is used for determining the auxiliary oil pump to be started according to the pressure value and the power value corresponding to each auxiliary oil pump and sending a starting instruction to the auxiliary oil pump to be started;
the second determining unit is specifically configured to, if the power values corresponding to the auxiliary oil pumps are the same, determine the number of auxiliary oil pumps to be started according to the pressure values and the power values, select the auxiliary oil pumps of the number from the auxiliary oil pumps to send a start instruction to the auxiliary oil pumps, and use the remaining auxiliary oil pumps as backup oil pumps of the fluid coupling; and if the power values corresponding to the auxiliary oil pumps are different, sequencing the auxiliary oil pumps according to the corresponding power values, determining the auxiliary oil pump to be started according to the sequencing result and the pressure value, and sending a starting instruction to the auxiliary oil pump.
8. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 6.
9. A computer arrangement comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the computer program realizes the steps of the method of any one of claims 1 to 6 when executed by the processor.
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| CN202011095036.4A CN112413115B (en) | 2020-10-14 | 2020-10-14 | Control method and device for auxiliary oil pump |
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| CN202011095036.4A CN112413115B (en) | 2020-10-14 | 2020-10-14 | Control method and device for auxiliary oil pump |
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| CN112413115B true CN112413115B (en) | 2022-07-12 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101660596B (en) * | 2009-06-23 | 2011-02-09 | 吉林大学 | Speed-regulating hydraulic coupler transmission device of large-power composite gear capable of speeding up front and rear gear |
| CN201944524U (en) * | 2010-06-24 | 2011-08-24 | 中国神华能源股份有限公司 | Lubricating system for hydraulic coupler |
| EP2573391B1 (en) * | 2011-09-22 | 2018-11-21 | Moventas Gears Oy | Method and arrangement for controlling the lubrication of a gear system |
| JP5632049B1 (en) * | 2013-07-10 | 2014-11-26 | 川崎重工業株式会社 | Hydraulic circuit for control of continuously variable transmission |
| CN107676451A (en) * | 2017-11-13 | 2018-02-09 | 张环宇 | The variable-frequency control technique of speed-increasing hydraulic coupler |
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