CN111457049B - Automatic quantitative oil injection control system and control method for shock absorber - Google Patents
Automatic quantitative oil injection control system and control method for shock absorber Download PDFInfo
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- CN111457049B CN111457049B CN202010312025.0A CN202010312025A CN111457049B CN 111457049 B CN111457049 B CN 111457049B CN 202010312025 A CN202010312025 A CN 202010312025A CN 111457049 B CN111457049 B CN 111457049B
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/43—Filling or drainage arrangements, e.g. for supply of gas
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/42—Cooling arrangements
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- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides an automatic quantitative oil injection control system and a control method for a shock absorber, which can realize the accurate control of the quality and the temperature of oil, and the automatic quantitative oil injection control system comprises: the oil injection module and the temperature control module; the oiling module includes: the quantitative cylinder is internally divided into a first inner cavity and a second inner cavity by a floating baffle plate, the floating baffle plate can act between the first inner cavity and the second inner cavity according to a preset stroke, the oil tank is respectively connected with the first inner cavity and the second inner cavity, and the flow sensing unit is arranged at an oil outlet of the second inner cavity; the temperature control module includes: the temperature sensing unit is arranged in the oil tank, the refrigerating unit outputs cold to the oil tank, and the heating unit outputs heat to the oil tank.
Description
Technical Field
The invention relates to the technical field of automobile shock absorbers, in particular to an automatic quantitative oiling control system and method for a shock absorber.
Background
Along with the improvement of the requirement of people on the comfort level of automobile vibration reduction, higher technical requirements are also put forward on the assembly process of the vibration absorber, and therefore, the assembled vibration absorber needs to be subjected to indicator test. The indicator test is to detect the compression force and the tension force at different speed sections and the displacement curve to judge whether the curve is qualified. However, before the dynamometer test, an oil injection process is required for the inner tube of the assembled damper.
The oil temperature and the oil quality are very important influence factors for curve judgment, but the conventional automatic quantitative oil injection control equipment for the automatic oil injection process of the shock absorber adopts a common interruption control mode, cannot accurately control the oil quality and control the oil temperature, and can cause production stop loss once a flow meter used on the automatic quantitative oil injection machine is damaged.
Disclosure of Invention
In view of the above problems, the present invention provides an automatic quantitative oiling control system and method for a shock absorber, which can accurately control the quality and temperature of oil and ensure normal production.
In order to achieve the purpose, the technical scheme of the invention is as follows:
an automatic dosing control system for a shock absorber, comprising: the oil injection module and the temperature control module;
the oiling module includes: the quantitative cylinder is internally divided into a first inner cavity and a second inner cavity by a floating baffle plate, the floating baffle plate can act between the first inner cavity and the second inner cavity according to a preset stroke, the oil tank is respectively connected with the first inner cavity and the second inner cavity, and the flow sensing unit is arranged at an oil outlet of the second inner cavity; the temperature control module includes: the temperature sensing unit is arranged in the oil tank, the refrigerating unit outputs cold to the oil tank, and the heating unit outputs heat to the oil tank.
As an improvement of the automatic quantitative oil injection control system of the present invention, the oil injection module further comprises: and the output end of the servo motor extends into the quantitative cylinder and limits the preset stroke.
As an improvement of the automatic quantitative oil injection control system of the present invention, the oil injection module further comprises: and the displacement sensing unit is positioned at the limit position of the preset stroke and is arranged at one end of the quantitative cylinder.
As an improvement of the automatic quantitative oil injection control system of the present invention, the oil injection module further comprises: the electromagnetic valve group comprises a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a fourth electromagnetic valve and a fifth electromagnetic valve;
the oil tank is connected with a customer oil pipe through the first electromagnetic valve, the oil tank is connected to the first inner cavity through the second electromagnetic valve, the oil tank is connected to the second inner cavity through the third electromagnetic valve, an oil outlet of the second inner cavity is connected to the flow sensing unit through the fourth electromagnetic valve, and the first inner cavity is connected to the oil tank through the fifth electromagnetic valve.
As an improvement of the automatic quantitative oil injection control system of the present invention, the oil injection module further comprises: the oil pump motor is divided into a first oil pump motor and a second oil pump motor;
the oil tank, the oil pump motor I and the refrigeration unit form closed-loop connection in sequence, and the oil tank is connected with the constant delivery pump after passing through the oil pump motor II.
As an improvement of the automatic quantitative oil injection control system of the present invention, the oil injection module further comprises: the liquid level sensing unit is located in the oil tank and is divided into a first liquid level sensor and a second liquid level sensor, and the second liquid level sensor is arranged below the liquid level sensors.
As an improvement of the automatic quantitative oiling control system, the automatic quantitative oiling control system further comprises a control module which is a PLC controller, wherein the PLC controller controls the oiling module and the temperature control module to work and collects a pulse signal fed back by the flow sensing unit.
In order to realize the purpose, the technical scheme of the invention is as follows:
a control method based on the automatic quantitative oiling control system for the shock absorber comprises the following steps:
the oil tank is filled with oil, and whether the oil is filled continuously or not is judged in a mode of feeding back the liquid level in the oil tank in real time;
presetting a target oil temperature based on the temperature control module, and adjusting the oil temperature in the oil tank by sensing the difference value between the oil temperature in the oil tank and the target oil temperature;
and quantitatively injecting oil to an inner barrel of the applied shock absorber through the quantitative pump based on preset parameters, or judging whether the preset parameters are met or not through signals fed back by the flow sensing unit, and controlling the oil injection of the quantitative pump.
As an improvement of the control method, the quantitative oil is quantitatively injected into the quantitative cylinder injection mode corresponding to the inner cylinder of the applied shock absorber through the quantitative pump, and the control method specifically comprises the following steps:
pushing the floating baffle to a calibration position, reading whether the oil injection process of the shock absorber meets the oil injection condition, if so, carrying out the next step, and if not, continuing to wait for an oil injection starting signal;
oil enters the first inner cavity and pushes the floating baffle to move towards the second inner cavity, and the oil in the second inner cavity enters the inner cylinder of the shock absorber through the oil outlet.
As an improvement of the control method of the present invention, the method for controlling the oil injection of the fixed displacement pump corresponding to the oil injection mode of the flow meter by judging whether the preset parameter is met or not according to the signal fed back by the flow sensing unit specifically comprises the following steps:
reading whether the oil injection process of the shock absorber meets the oil injection condition, if so, carrying out the next step, and if not, continuing to wait for an oil injection starting signal;
oil enters an inner cylinder of the shock absorber;
detecting through the flow sensing unit, judging whether the pulse value detected by the flow sensing unit is a set pulse value, if so, stopping injecting oil until a next oil injection starting signal; if not, oil injection is continued.
The invention has the advantages that through corresponding control operation, the constant temperature of the oil temperature and the constant oil density can be ensured, the accurate control of the oil quality and the oil temperature is effectively realized, the high technical requirements of the market on products are met, the switching of the oil injection mode can be realized through the touch screen, the production stop loss caused by the damage of the existing flowmeter is avoided, and the normal production is ensured.
Drawings
FIG. 1 is a block diagram of an automatic dosing control system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an automatic dosing control system according to an embodiment of the present invention;
FIG. 3 is a flow chart of tank oil quantity control for an automatic dosing control method according to another embodiment of the present invention;
FIG. 4 is a flow chart of tank temperature control for a method of automatic dosing control according to another embodiment of the present invention;
fig. 5 is a flowchart of the automatic dosing control method according to another embodiment of the present invention.
Detailed Description
Referring to fig. 1 and 2, an embodiment of the present invention provides an automatic oiling control system for a shock absorber, which includes a flow sensor 1, an oil tank 2, an oil pump motor 3, and a PLC controller 5, a dosing cylinder 6, a touch screen 7, a water chiller 8, a servo motor 9, a displacement sensor 10, a temperature sensor 11, a liquid level sensor 12, a heating component 13, an electromagnetic valve group 14, and an RFID 15, which are powered by a switching power supply 4.
The flow sensor 1, the oil tank 2, the oil pump motor 3, the touch screen 7, the water chiller 8, the servo motor 9, the displacement sensor 10, the temperature sensor 11, the liquid level sensor 12, the heating element 13, the electromagnetic valve group 14 and the RFID radio frequency identifier 15 are all connected with the PLC controller 5, and the quantitative cylinder 6 is connected with the servo motor 9 and the displacement sensor 10.
The oil pump motor 3 is divided into a first oil pump motor 16 and a second oil pump motor 17, and is connected with the PLC 5. The electromagnetic valve group 14 comprises a first electromagnetic valve 18, a second electromagnetic valve 19, a third electromagnetic valve 20, a fourth electromagnetic valve 21 and a fifth electromagnetic valve 22, and is connected with the PLC controller 5. The liquid level sensor 12 is divided into a first liquid level sensor 23 and a second liquid level sensor 24 which are both connected with the PLC controller 5, and the second liquid level sensor 24 is arranged below the first liquid level sensor 23. The heating member 13 is a heating rod.
In the invention, the PLC 5 is a core unit of the whole control system, and acquires the pulse signal of the high-precision flow sensor 1 without being influenced by the processing speed of a CPU.
All manual and automatic modes, radio frequency identification signals, limit signals of the quantitative cylinder 6 and the servo motor 9, liquid level detection, temperature detection, flow detection and displacement detection are used as input feedback ends, an output control end of the PLC 5 controls the water chiller 8 and the oil pump motor 3 through a control solenoid valve bank 14, and meanwhile, the PLC 5 accurately drives servo position control, a heating element 13 and control operation of the water chiller 8 through a Profinet protocol.
And the touch screen 7 is connected with the PLC 5 through PN communication to realize visual operation, parameter setting, data monitoring and I/O monitoring.
And the switching power supply 4 is used for providing direct current 24V power supply, and the input end of the switching power supply is connected with the AC 220V.
The RFID radio frequency identifier 15 is connected with the PLC controller 5 through PN communication, so that when the oil injection process flows from a plurality of processes of the shock absorber assembly line, whether the product meets the oil injection condition is tracked in real time, and meanwhile, the time, the working state and the like of oil injection completion are written into the tag chip for the subsequent process to judge the state and upload the state to the control system.
The flow sensor 1 is used for detecting the volume of oil flowing through, when oil flows through the flow sensor 1, the internal gears are pushed to rotate, the space formed by each gear and the inner cavity wall is the volume V containing the oil, and each pushed gear sends a pulse unit (K), wherein the pulse number P sent by a certain volume of fluid passing through the flow sensor 1 can be calculated by the formula P which is V/K.
The first liquid level sensor 23 and the second liquid level sensor 24 are used for detecting the upper limit and the lower limit of the oil level respectively.
The quantitative cylinder 6 is used for storing the oil injection amount required for a single time, and according to the oil injection quality set by the client touch screen 7, the distance L between the floating baffle 26 and the bottom of the quantitative cylinder 6 can be known through V (m/rho) and V (S (L), m is the oil injection quality, and rho is the oil injection density. S is the sectional area of the quantitative cylinder 6.
The servo motor 9 and the PLC controller 5 are controlled by the Profinet protocol communication.
The first solenoid valve 18 is a switch for allowing oil in the customer oil pipe 25 to enter the oil tank 2, the second solenoid valve 19 is a switch for pushing the floating baffle 26 from the first inner chamber 27 to inject oil into the inner cylinder, the third solenoid valve 20 is a switch for injecting oil into the dosing cylinder 6, the fourth solenoid valve 21 is a switch for injecting oil into the dosing cylinder 6 into the inner cylinder, and the fifth solenoid valve 22 is a switch for returning oil in the first inner chamber 27 to the oil tank 2.
In the automatic quantitative oiling control system, an oil tank 2 is connected with a customer oil pipe 25 through a first electromagnetic valve 18, a first liquid level sensor 23, a second liquid level sensor 24, a temperature sensor 11 and a heating element 13 are all arranged in the oil tank 2, a first oil pump motor 16 and a water cooling machine 8 form closed loop connection in sequence, a floating baffle 26 which is contacted with a servo motor 9 is arranged in a quantitative cylinder 6 so as to divide the inner cavity of the quantitative cylinder 6 into a first inner cavity 27 and a second inner cavity 28, the quantitative cylinder 6 corresponding to the first inner cavity 27 and the second inner cavity 28 is respectively connected with a second electromagnetic valve 19 and a third electromagnetic valve 20, the oil tank 2 is connected with the second electromagnetic valve 19 and the third electromagnetic valve 20 through a second oil pump motor 17, the quantitative cylinder 6 on the side of the second inner cavity 28 is connected with a flow sensor 1 through a fourth electromagnetic valve 21, the quantitative cylinder 6 on the side of the first inner cavity 27 is connected with the oil tank 2 through a fifth electromagnetic valve 22, the displacement sensor 10 is mounted on the outer wall of the dosing cylinder 6.
As shown in fig. 3 to 5, another embodiment of the present invention further provides an automatic oil dosing control method for a shock absorber, which includes the following steps:
and S1, selecting a corresponding product model through the touch screen 7 according to the product model produced by the customer, downloading the product model into the PLC 5, and then initializing the system start.
And after the system initialization is finished, judging whether an operation request exists, if not, continuing to stand by, and if so, detecting whether the operation request is an automatic control request. If the automatic control request is made, S2 is executed, and if the automatic control request is not made, the operation is changed to the manual mode operation.
And S2, in the automatic control mode, the oil tank 2 is filled from the customer oil pipe 25 through the first electromagnetic valve 18, and the information is fed back to the PLC 5 through the liquid level sensor 12, so that whether the oil is filled continuously is judged.
Specifically, in S2, as shown in fig. 3, after the information is fed back to the PLC controller 5 by the first liquid level sensor 23 and the second liquid level sensor 24, the determining of oil injection includes the following steps:
s2.1, judging whether the oil level value in the oil tank 2 is lower than the second liquid level sensor 24, if so, opening the first electromagnetic valve 18 to inject oil, and if not, executing the step S2.2.
S2.2, judging whether the oil level value in the oil tank 2 is lower than the first liquid level sensor 23, if so, opening the first electromagnetic valve 18 to inject oil. If not, oil injection is continued, judgment is performed and waiting is performed.
And S2.3, after the oil injection in the steps S2.1 and S2.2 is finished, judging whether the oil level value in the oil tank 2 is not lower than the first liquid level sensor 23, if so, closing the first electromagnetic valve 18, stopping oil injection, and if not, continuing oil injection judgment and waiting.
S3, after oil injection is completed, PID constant temperature control is performed through the PLC 5, the first oil pump motor 16, the water cooling machine 8 and the heating element 13 according to oil temperature parameters set by the touch screen 7 to achieve oil temperature regulation, so that constant oil temperature and constant oil density are ensured, better quality guarantee is provided for subsequent indicator test, and higher technical requirements of the market on products are met.
Specifically, in S3, as shown in fig. 4, information is fed back to the PLC controller 5 through the temperature sensor 11, and after determining whether the oil temperature detected by the temperature sensor 11 is lower than the set temperature value, if so, the water chiller 8 is turned off, and the heating element 13 is turned on to heat the oil tank 2 until the oil temperature is determined again. If not, the heating element 13 is closed, the first oil pump motor 16 and the water cooling machine 8 are started, oil in the oil tank 2 is pumped out from the port A of the oil tank 2, and then flows back to the port B of the oil tank 2 after passing through the water cooling machine 8 in a circulating mode, so that refrigeration circulation is achieved until the oil temperature is judged again.
And S4, after the oil temperature is adjusted, according to the oil quality parameters set by the touch screen 7, oil is precisely injected through the oil pump motor II 17, the flow sensor 1, the quantifying cylinder 6, the displacement sensor 10, the second electromagnetic valve 19, the third electromagnetic valve 20, the fourth electromagnetic valve 21 and the fifth electromagnetic valve 22, so that the oil quality is precisely controlled, and the oil injection mode switching is realized through the touch screen 7.
Specifically, in S4, as shown in fig. 5, it is determined according to the touch panel 7 that the oil injection mode is selected, the oil injection mode is classified into a dosing cylinder oil injection mode and a flowmeter oil injection mode, and when the flow sensor 1 is damaged, the dosing cylinder oil injection mode is selected. When the quantitative cylinder 6 is damaged, the oil injection mode of the flowmeter is selected for oil injection control. Wherein, the quantitative jar 6 is carried out the oiling by servo motor 9 control cavity volume, and flow sensor 1 sends the pulse feedback volume, reaches dual redundant design, has realized carrying out oiling mode through touch-sensitive screen 7 and has switched, can not lead to the loss of stopping production because flow sensor 1 or quantitative jar 6 damage, full force guarantee normal production.
When the quantitative cylinder oiling mode is adopted, the oil injection judgment step comprises the following steps:
s4.1.1, when the servo motor 9 runs to a calibration position, namely the volume in the inner cavity of the quantitative cylinder 6 reaches a set volume, starting the second oil pump motor 17, the third electromagnetic valve 20 and the fifth electromagnetic valve 22, closing the second electromagnetic valve 19 and the fourth electromagnetic valve 21, enabling oil to enter the quantitative cylinder 6 through the third electromagnetic valve 20, simultaneously pushing the floating baffle 26 to the first inner cavity 27 side by the oil in the quantitative cylinder 6, namely pushing the floating baffle 26 to the calibration position where the servo motor 9 runs, and enabling the oil in the first inner cavity 27 to flow back to the C port of the oil tank 2 through the fifth electromagnetic valve 22, then reading whether an oil injection process of the shock absorber meets an oil injection condition through the RFID 15, if so, carrying out the next step S4.1.2, and if not, continuing to wait for an oil injection starting signal.
S4.1.2, the second oil pump motor 17, the second electromagnetic valve 19 and the fourth electromagnetic valve 21 are opened, the third electromagnetic valve 20 and the fifth electromagnetic valve 22 are closed, oil enters the first inner cavity 27 through the second electromagnetic valve 19, at the moment, the oil enters the first inner cavity 27 through the second electromagnetic valve 19 and pushes the floating baffle plate 26 to move towards the second inner cavity 28 side, and the oil in the second inner cavity 28 enters the inner cylinder of the shock absorber through the fourth electromagnetic valve 21.
S4.1.3, detecting by the displacement sensor 10, judging whether the displacement sensor 10 reaches the bottom of the quantitative cylinder 6, if so, finishing oil injection, and returning to the step S4.1.1. If not, return to step S4.1.2.
When the flow meter oil injection mode is adopted, the oil injection judgment step comprises the following steps:
s4.2.1, reading whether the oil injection process of the shock absorber meets the oil injection condition through the RFID 15, if yes, proceeding to the next step S4.2.2, if not, continuing waiting for the oil injection starting signal.
S4.2.2, the second oil pump motor 17, the third electromagnetic valve 20 and the fourth electromagnetic valve 21 are opened, the second electromagnetic valve 19 and the fifth electromagnetic valve 22 are closed, and the oil enters the inner cylinder of the shock absorber through the fourth electromagnetic valve 21.
S4.2.3, detecting by the flow sensor 1, judging whether the pulse value detected by the flow sensor 1 is the set pulse value, if yes, closing the second 17, the third 20 and the fourth 21 electromagnetic valves of the oil pump motor until the next oil injection starting signal. If not, return to step S4.2.2.
And the oil injection condition is an assembly process of the shock absorber before the oil injection process, and if the data in the assembly process is abnormal, the data is unqualified and does not meet the oil injection condition, the oil injection process is not carried out any more.
When the servo motor 9 is at the origin position, the detection value of the corresponding displacement sensor 10 is denoted as L1. When the servo motor 9 is operated to the calibration position, the detection value corresponding to the displacement sensor 10 is marked as L2. Where L2 is L-L1, and L represents the distance between the floating gate 26 and the bottom of the dosing cylinder 6.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. An automatic dosing control system for a shock absorber, the automatic dosing control system comprising: the oil injection module and the temperature control module;
the oiling module includes: the quantitative oil tank comprises a quantitative cylinder (6), an oil tank (2) and a flow sensor (1), wherein the quantitative cylinder (6) is internally divided into a first inner cavity (27) and a second inner cavity (28) by a floating baffle (26), the floating baffle (26) can act between the first inner cavity (27) and the second inner cavity (28) according to a preset stroke, the oil tank (2) is respectively connected with the first inner cavity (27) and the second inner cavity (28), and the flow sensor (1) is arranged at an oil outlet of the second inner cavity (28); the temperature control module includes: the cooling system comprises a water cooler (8), a heating element (13) and a temperature sensor (11), wherein the temperature sensor (11) is arranged in the oil tank (2), the water cooler (8) outputs cold to the oil tank (2), and the heating element (13) outputs heat to the oil tank (2);
the oiling module still includes: a servo motor (9), the output end of the servo motor (9) extends into the quantitative cylinder (6) and limits the preset stroke; the oiling module still includes: a displacement sensor (10) located at the limit of the preset stroke and arranged at one end of the dosing cylinder (6).
2. The automatic dosing control system for a shock absorber according to claim 1, wherein the oil injection module further comprises: a solenoid valve pack (14), the solenoid valve pack (14) comprising: a first electromagnetic valve (18), a second electromagnetic valve (19), a third electromagnetic valve (20), a fourth electromagnetic valve (21) and a fifth electromagnetic valve (22);
the oil tank (2) is connected with a customer oil pipe through the first electromagnetic valve (18), the oil tank (2) is connected to the first inner cavity (27) through the second electromagnetic valve (19), is connected to the second inner cavity (28) through the third electromagnetic valve (20), the oil outlet of the second inner cavity (28) is connected to the flow sensor (1) through the fourth electromagnetic valve (21), and the first inner cavity (27) is connected to the oil tank (2) through the fifth electromagnetic valve (22).
3. The automatic dosing control system for a shock absorber according to claim 1, wherein the oil injection module further comprises: the oil pump motor (3), the said oil pump motor (3) is divided into oil pump motor one (16), oil pump motor two (17);
the oil tank (2), the oil pump motor I (16) and the water cooler (8) sequentially form closed-loop connection, and the oil tank (2) is connected with the constant delivery pump through the oil pump motor II (17).
4. The automatic dosing control system for a shock absorber according to claim 1, wherein the oil module further comprises: the liquid level sensor (12), liquid level sensor (12) are located in oil tank (2), and it divide into level sensor one (23), level sensor two (24) set up in level sensor one (23) below.
5. The automatic dosing control system for a shock absorber according to claim 1, further comprising a control module which is a PLC controller (5), wherein the PLC controller (5) controls the oil injection module and the temperature control module to operate and collects a pulse signal fed back by the flow sensor (1).
6. A control method for an automatic dosing control system for shock absorbers according to any one of claims 1 to 5, characterized in that it comprises the following steps:
the oil tank (2) is filled with oil, and whether the oil is filled continuously is judged in a mode of feeding back the liquid level in the oil tank (2) in real time;
presetting a target oil temperature based on the temperature control module, and adjusting the oil temperature in the oil tank (2) by sensing the difference value between the oil temperature in the oil tank (2) and the target oil temperature;
specifically, information of a temperature sensor (11) is fed back to a PLC (programmable logic controller) (5), whether the oil temperature detected by the temperature sensor (11) is smaller than a set temperature value or not is judged, if yes, a water cooling machine (8) is turned off, and a heating element (13) is started to heat an oil tank (2) until the oil temperature is judged again; if not, the heating element (13) is closed, the first oil pump motor (16) and the water cooling machine (8) are started, oil in the oil tank (2) is pumped out from the port A of the oil tank (2), and then flows back to the port B of the oil tank (2) through the water cooling machine (8) in a circulating mode, so that refrigeration circulation is achieved until the oil temperature is judged again;
quantitatively injecting oil to an inner cylinder of an applied shock absorber through a quantitative pump based on preset parameters, or judging whether the preset parameters are met or not through signals fed back by the flow sensor (1) to control the oil injection of the quantitative pump;
the quantitative oil injection mode of the quantitative pump to the quantitative cylinder (6) corresponding to the inner cylinder of the applied shock absorber specifically comprises the following steps:
pushing the floating baffle (26) to a calibration position, reading whether the oil injection process of the shock absorber meets the oil injection condition, if so, carrying out the next step, and if not, continuing to wait for an oil injection starting signal;
oil enters the first inner cavity (27) and pushes the floating baffle plate (26) to move towards the second inner cavity (28), and the oil in the second inner cavity (28) enters an inner cylinder of the shock absorber through an oil outlet;
the method comprises the following steps of judging whether the preset parameters are met or not through signals fed back by the flow sensor (1), and controlling the oiling mode of the quantitative pump corresponding to the flowmeter, wherein the method specifically comprises the following steps:
reading whether the oil injection process of the shock absorber meets the oil injection condition, if so, carrying out the next step, and if not, continuing to wait for an oil injection starting signal;
oil enters an inner cylinder of the shock absorber;
detecting through the flow sensor (1), judging whether the pulse value detected by the flow sensor (1) is a set pulse value, if so, stopping oil injection until a next oil injection starting signal; if not, oil injection is continued.
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| CN201458704U (en) * | 2009-07-24 | 2010-05-12 | 成都联创精密机械有限公司 | Oiling machine for vibration damper |
| CN101935001B (en) * | 2010-08-03 | 2012-06-06 | 常州朗锐凯迩必减振技术有限公司 | Automatic oiling machine |
| CN102735458A (en) * | 2012-06-13 | 2012-10-17 | 江苏明珠试验机械有限公司 | Double-acting durability test bed for vibration absorber |
| US9353820B2 (en) * | 2013-04-11 | 2016-05-31 | Bell Helicopter Textron Inc. | Elastomeric damper with heater |
| CN203375155U (en) * | 2013-07-24 | 2014-01-01 | 阎晓旭 | Mechanical transmission lubricating oil temperature precision control device |
| CN105539049B (en) * | 2016-03-01 | 2018-06-08 | 谢长溪 | A kind of automobile absorber real-time monitoring system |
| CN207179147U (en) * | 2017-08-08 | 2018-04-03 | 启东德乐润滑设备有限公司 | A kind of intelligent lubricating system |
| CN107677461B (en) * | 2017-09-11 | 2018-11-13 | 东莞理工学院 | Test module and system and test method for the experiment of oil-pressure damper orifice valve |
| CN109827785A (en) * | 2017-11-23 | 2019-05-31 | 成都九鼎科技(集团)有限公司 | CDC damper Performance Test System |
| CN110132571A (en) * | 2019-05-25 | 2019-08-16 | 青岛纪玉捷成车辆技术有限公司 | A kind of CDC damper solenoid valve assembly test equipment |
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2020
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