CN116817151A

CN116817151A - Manual-automatic integrated lubrication control method and control system

Info

Publication number: CN116817151A
Application number: CN202310767565.1A
Authority: CN
Inventors: 张�荣; 赵杰超; 张同军; 张超; 赵大平; 赵民章
Original assignee: ZHENGZHOU AUTOL TECHNOLOGY CO LTD
Current assignee: ZHENGZHOU AUTOL TECHNOLOGY CO LTD
Priority date: 2023-06-27
Filing date: 2023-06-27
Publication date: 2023-09-29

Abstract

The invention relates to a manual-automatic integrated lubrication control method and a control system. The system comprises a control module, a oiling machine motor and a driver thereof, a lubricating pump motor and a driver thereof, and a safety protection module, wherein the control module comprises a timing unit, a storage unit and a processing unit, and is respectively in control connection with the motor drivers of the lubricating pump and the oiling machine motor, the control module controls the running and stopping of the motor drivers of the lubricating pump and the oiling machine motor, when the lubricating pump motor is in a centralized lubricating mode, the control module controls the lubricating pump motor to run and stop according to a set program, and when the lubricating pump motor is in the oiling machine mode, the control module controls the oiling machine motor or simultaneously controls the oiling machine motor and the lubricating pump motor to work and stop according to personnel operation. Meets the two application requirements of automatic centralized lubrication and manual quick grease injection.

Description

Manual-automatic integrated lubrication control method and control system

Technical Field

The invention relates to a manual-automatic integrated lubrication control method and a control system.

Background

In the prior art, for lubricating equipment, equipment grease injection lubrication is performed in a timed and quantitative automatic lubrication mode, and a oiling machine is used in a large-displacement temporary grease injection occasion. Although grease is provided for the friction equipment, the equipment for providing the functions belongs to electrical equipment with completely different control modes, and the control methods and the control processes are different. The lubricating pump mainly works in a low-speed displacement small-periodicity circulating mode, does not need manual intervention, and works at fixed time and fixed quantity; the oiling machine is used for temporary high-speed large-displacement work without fixed time and other occasions. In most cases, a lubrication pump is provided to supply grease injection power to a fixed system (single-wire, progressive or double-wire system), a lubrication oil outlet point is already configured at a corresponding friction pair according to the system, and for the occasions (such as a connecting rod and Ma Latou) inconvenient to lay an oil way, an additional oiling machine is needed to manually perform oiling, so that at present, some engineering mechanical devices are provided with either one lubrication pump or one oiling machine, or both the lubrication pump and the oiling machine are configured, and neither the configuration nor the use can be called perfect configuration, so that the defects are obvious, either the use is limited, the cost is increased, the use is complicated, and automatic lubrication and quick grease injection cannot be perfectly combined.

Disclosure of Invention

The invention aims to provide a manual-automatic lubrication control system, which can enable the lubrication system to work in a centralized lubrication mode and also work in an oiling machine mode, so that good matching of the two modes is realized, and two application requirements of automatic centralized lubrication and manual quick grease injection are met; the invention also aims to provide a control method used by the manual-automatic lubrication control system.

The manual-automatic integrated lubrication control method has the following technical scheme: the manual-automatic integrated lubrication control method comprises the following steps:

in the centralized lubrication mode, the control module controls the lubrication pump motor to work according to a set program through a motor driver of the lubrication pump motor, and under the control of the set program, the lubrication pump motor automatically switches between working modes according to the program and resting working modes so as to enable each distributor to fill lubricant into corresponding lubrication points;

when the oiling machine mode is used, after the control module receives a starting signal of personnel operation, the motor driver of the oiling machine motor is used for controlling the oiling machine motor to operate, so that personnel can hold the oiling gun to fill the lubricating agent for each lubricating point, the control module receives a closing instruction of the personnel or after a set time, the control module controls the oiling machine motor to stop rotating.

The beneficial effect of this scheme: the manual-automatic lubrication control method can control each part of the control system, so that the lubrication system can be switched between two modes, and when a centralized lubrication mode is needed, the control module can control the lubrication pump motor to automatically perform regular rest and work switching according to a program, so that the timing and quantitative lubricant filling of each lubrication point is realized; when some special lubricating points inconvenient to perform centralized lubrication or manual lubrication is needed due to the failure of a centralized lubrication system, the control module can be switched to a oiling machine mode, so that an oiling machine motor with larger rated displacement is started, a large amount of lubricant can be pumped out in a short time, and each lubricating point can be filled manually by manually pressing the oiling gun more quickly and efficiently; in the two modes of operation, the control module can adopt corresponding control instructions to cope with in order to protect the system safety or to realize certain functions through the feedback of the pressure detection module.

Further, the set time is counted from the time when the control module receives a starting signal of personnel operation or counted from the time when the fuel gun stops using. The mode of starting timing after the control module receives a starting signal operated by personnel, the hardware and the corresponding control program are simpler, and the timing after the fuel gun stops using is more intelligent, so that the mode can be converted into a centralized lubrication mode at the first time without using the fuel gun, and the resource waste is avoided.

Further, the start signal of the personnel operation is at least not less than a set period of time between the start of two operations to enter the fuel dispenser mode, so as to prevent the fuel dispenser mode from being excessively used. Such an arrangement is to avoid operator non-standardised operation, for example filling a plurality of equipment to be lubricated simultaneously in a tanker mode, such overuse exceeding the bearing limits of the lubrication system, leading to premature failure of the lubrication system.

Further, after the control module controls the oiling machine motor to stop to finish the oiling machine mode, the control module controls the lubrication pump motor to continue to switch to the oiling machine mode according to the previous centralized lubrication mode and to stop the incomplete program operation. Such a setting ensures continuity of the concentrated lubrication pattern, avoiding repeated priming.

Further, after the system is started, the control module enters a centralized lubrication mode by default according to program setting. Such a setting is in line with the fact that the centralized lubrication mode is mainly used, and the fuel dispenser mode is only required in a few special cases, and the vast majority of time is normally used for lubrication by the centralized lubrication mode.

Further, after the system is started, the system oil pressure is monitored at all times through the pressure detection module, when the detected oil pressure reaches a set safety pressure threshold value, the control module controls each motor in operation to stop running, meanwhile, the timing unit starts timing, if the detected pressure is reduced to be lower than the set safety pressure threshold value in a set time period, the motor is continuously started to run, and if the detected pressure is not lower than the set safety pressure threshold value in the set time period, the control module judges that the motor is blocked. Such a setting not only protects the system pressure safety, but also can determine whether it is a clogging failure.

Further, when the oiling machine mode is used, after the control module receives a starting signal of personnel operation, the control module controls the oiling machine motor to operate or controls the lubricating pump motor and the oiling machine motor to operate simultaneously so as to drive the corresponding plunger pair to suck and pump the lubricant to the oiling gun, so that an operator can hold the oiling gun to fill the lubricant for each lubricating point. In the oiling machine mode, the lubricating pump motor and the oiling machine motor are controlled to be in a working state at the same time, so that the displacement of a plunger pair driven by the two motors can be combined, and the aim of reducing the rated power of a single motor is fulfilled.

Further, when the ambient temperature is lower than the set value and the fuel dispenser mode is entered, the control module controls the fuel dispenser motor to operate at a lower set rated rotational speed through a motor driver of the fuel dispenser motor. The control module can control the corresponding motor to operate at different rated speeds according to the temperature, for example, in winter, the motor is safer to operate at lower speeds due to slow peristaltic movement of lubricating grease, and the frequent increase of the motor operation in each period can ensure that the lubricant can creep in place.

Further, the oil level of the oil tank is detected through the oil level detection unit, and when the oil level in the oil tank is detected to be lower than a set value, the control module controls the running motor to stop running and sends out a corresponding warning signal through the warning module.

Further, the control module can judge whether the dispenser is blocked or not through a signal fed back by a Hall sensor arranged on the dispenser and used for detecting whether the plunger of the dispenser acts or not, and if the dispenser is blocked, a corresponding warning signal is sent out through the warning module.

Further, when the corresponding centralized lubrication system is a two-wire system, in the centralized lubrication mode, the control module controls the oiling machine motor to operate in a regular manner of forward rotation, stop, reverse rotation and stop so that the two main oil ways alternately pump out the lubricant.

Further, when the corresponding centralized lubrication system is a progressive system, when the centralized lubrication system is in a centralized lubrication mode, the control module controls the lubrication pump motor to rotate positively through a motor driver of the lubrication pump motor, and when the centralized lubrication system is in an oiling machine mode, the control module firstly controls the lubrication pump motor to rotate reversely so as to drive the two-position three-way valve to switch the valve position through the mechanical reversing mechanism, so that the other main oil way is discharged, and then the oiling machine motor is started to operate.

Further, when the corresponding centralized lubrication system is a single-line system, when the centralized lubrication system is in a centralized lubrication mode, the control module controls the lubrication pump motor to rotate positively, when the system oil pressure detected by the pressure detection module is greater than a set safety pressure threshold value, the motor is stopped, the motor is rotated reversely for a period of time to ensure the reversing of the two-position three-way valve, and then the motor is stopped to perform pipeline pressure relief.

The manual-automatic integrated lubrication control system has the following technical scheme: the manual-automatic lubrication control system comprises:

the lubricating pump motor and the motor driver thereof are used for driving the corresponding plunger pair of the lubricating pump to act so as to suck and pump the lubricant;

the oiling machine motor and the motor driver thereof are used for driving the corresponding plunger pair of the oiling machine to act so as to suck and pump the lubricant;

the safety protection module is used for avoiding that the oil pressure of the system exceeds a set value so as to protect the system;

the control module comprises a timing unit, a storage unit and a processing unit, and is respectively in control connection with motor drivers of the lubricating pump and the oiling machine motor, and controls the lubricating pump and the motor drivers of the oiling machine motor to operate and stop.

The beneficial effect of this scheme: the manual-automatic lubrication control system is arranged on the corresponding lubrication system, so that the lubrication system can be switched between two modes, and when a centralized lubrication mode is needed, the control module can control the lubrication pump motor to automatically and regularly switch between rest and work according to a program, thereby realizing the timing and quantitative lubricant filling of each lubrication point; when some special lubricating points inconvenient to perform centralized lubrication or manual lubrication is needed due to the failure of a centralized lubrication system, the control module can be switched to a oiling machine mode, so that an oiling machine motor with larger rated displacement is started, a large amount of lubricant can be pumped out in a short time, and each lubricating point can be filled manually by manually pressing the oiling gun more quickly and efficiently; in the two modes of operation, the control module can adopt corresponding control instructions to cope with in order to protect the system safety or to realize certain functions through the feedback of the pressure detection module.

Further, the safety protection module comprises a pressure detection module or an overflow module or a current excess detection module. The system stop can be controlled by detecting the pressure to reach a set value, and then the system stop is controlled by relief in an overflow mode or by increase of current after overpressure, and the safety of the system operation can be ensured by the three modes.

The pressure detection module comprises an oil pressure switch.

Further, the manual-automatic lubrication control system comprises a temperature sensor, and the temperature sensor is electrically connected with the control module. The temperature sensor is arranged to enable the control module to control the corresponding motor to operate at different rated speeds according to the temperature, for example, in winter, the motor is safer when operating at a lower speed due to slow peristaltic movement of lubricating grease, and the frequent increase of the motor operation in each period can ensure that the lubricant can creep in place.

Further, the manual-automatic lubrication control system includes an oil level detection unit for detecting an oil level in the oil tank.

The oil level detection unit includes a laser correlation sensor.

Further, the manual-automatic integrated lubrication control system comprises a man-machine interaction module for receiving an instruction of an operator, and the man-machine interaction module is in control connection with the control module through the communication module. The man-machine interaction module is convenient for real-time control and parameter adjustment setting of the system, and manual start and stop of the oiling machine mode can be realized.

The man-machine interaction module is a mobile terminal, and the communication module is a wireless communication module.

Further, the manual-automatic lubrication control system comprises an alarm module for sending out an alarm signal when a fault occurs, and the alarm module is electrically connected with the control module. The alarm module can realize fault alarm, low liquid level alarm and other alarms to remind operators of timely maintenance faults even if the lubricant is supplemented or a maintainer is reminded.

Drawings

FIG. 1 is a schematic diagram of a lubrication system in embodiment 1 of an automated manual lubrication control system according to the present invention;

FIG. 2 is a system schematic block diagram of the automated manual lubrication control system of FIG. 1;

FIG. 3 is a schematic diagram of a lubrication system according to embodiment 2 of an automated manual lubrication control system according to the present invention;

FIG. 4 is a schematic diagram of a lubrication system according to embodiment 3 of an automated manual lubrication control system according to the present invention;

in fig. 1-3: the device comprises a 1-controller, a 2-oil tank, a 3-oil pressure switch, a 4-lubricating pump motor, a 5-lubricating pump plunger pair, a 6-oiling machine motor, a 7-oiling machine plunger pair, an 8-two-position four-way valve, a 9-two-wire distributor, a 10-progressive distributor, an 11-oiling pipe, a 12-oiling gun, a 13-coiling rack and a A, B-main oil way; 15-one-way valve, 17-sub progressive distributor, 18-motor driver; the intelligent oil level monitoring system comprises a temperature sensor 19, an oil level detection unit 20, a power supply module 21, a man-machine interaction module 22, a 23-alarm module 24, a processing unit 25, a timing unit 26 and a communication module 27;

In fig. 4: the device comprises a 1-controller, a 2-oil tank, a 3-oil pressure switch, a 4-lubricating pump motor, a 5-lubricating pump plunger pair, a 6-oiling machine motor, a 7-oiling machine plunger pair, an 8-two-position three-way valve, a 9-single line distributor, an 11-oiling pipe, a 12-oiling gun, a 13-coiling frame and an A-main oil way.

Detailed Description

The features and capabilities of the present invention are described in further detail below in connection with the examples.

Example 1 of an automated manual lubrication control system of the present invention: the manual-automatic lubrication control system is a control part of the lubrication system, and in order to facilitate understanding of the structure and functions of the manual-automatic lubrication control system, the lubrication system where the manual-automatic lubrication control system is located is described first, and as shown in fig. 1, the lubrication system comprises a filling pump, a control module, a main oil way, a distributor, a filling gun 12, a pipe harness and the like. The system is used for lubricating various mechanical equipment, and is not limited in the fields of engineering machinery, wind power, vehicles, ports and wharfs, metallurgy and the like. This embodiment will be described with respect to an excavator as an example.

The device is integrally arranged on the excavator, wherein the filling pump is arranged at a position close to the tool box, the control module CAN be a controller 1 of the filling pump, or CAN be connected by a CAN (controller area network) mode and a 485 mode by using the controller 1 of the excavator, and oil pipes, distributors, wire harnesses and the like of a main oil way are uniformly distributed and fixed on the excavator, so that lubrication of various lubrication points of areas such as a movable arm, a bucket rod, a connecting rod and the like of the excavator is covered.

The filling pump comprises a tank 2 and a pump head assembly, wherein the tank 2 can consider a large-capacity tank 2, and the general capacity is not lower than the capacity of a finished oil drum so that the whole drum of oil can be filled at one time. The oil drum material can consider the metal material in order to improve intensity.

The pump head assembly includes a lubrication pump module and a fuel dispenser module, where the lubrication pump module and fuel dispenser module are functionally named, but each of which is structurally different from the prior art lubrication pump and fuel dispenser. Both the lubrication pump module and the dispenser module can draw lubricant from the reservoir 2 and pump the lubricant out. The lubricating pump module comprises a lubricating pump driving mechanism, a plunger pair and the like, and particularly comprises a lubricating pump motor 4, a transmission mechanism, an eccentric shaft sliding block mechanism or an eccentric wheel mechanism, a lubricating pump plunger pair 5 and the like, wherein the lubricating pump motor 4 selects a motor with small rotating speed and stable performance, the transmission mechanism comprises a reduction gear set and the like, the eccentric shaft mechanism is driven by an output shaft of the lubricating pump motor 4 to rotate and drives the sliding block to linearly reciprocate on a guide rail, and accordingly two plungers of the two lubricating pump plunger pairs 5 on two sides are driven to linearly reciprocate, and the effects of sucking and pumping lubricant are achieved. The inlet of the plunger pair 5 of the lubricating pump is communicated with the oil tank 2, namely, the lubricant can be directly sucked from the oil tank 2, and the lubricant can be lubricating grease or lubricating oil of various types. Similarly, the oiling machine module comprises an oiling machine driving mechanism, a plunger pair and the like, and specifically comprises an oiling machine motor 6, a transmission mechanism, an eccentric shaft sliding block mechanism or an eccentric wheel mechanism, an oiling machine plunger pair 7 and the like, wherein the oiling machine motor 6 selects a motor with higher rotating speed, the requirement on service life can be properly reduced due to low utilization rate of the oiling machine motor 6, the transmission mechanism comprises a reduction gear set and the like, the eccentric shaft mechanism is driven by an output shaft of the oiling machine motor 6 to rotate and drive the sliding block to linearly reciprocate on a guide rail, and accordingly two plungers of the two oiling machine plunger pairs 7 on two sides are driven to linearly reciprocate, and the effects of sucking and pumping lubricant are achieved. The inlet of the plunger pair 7 of the oiling machine is communicated with the oil tank 2, namely, the lubricant can be directly sucked from the oil tank 2, and the lubricant can be lubricating grease or lubricating oil of various types. The dispenser plunger pair 7 and the lubricant pump plunger pair 5 draw lubricant from the same tank 2.

Meanwhile, the pump head assembly is further provided with two external oil ports, one of the two-position four-way valve 8 can be arranged in other embodiments to serve as a switching valve, the mechanical reversing type two-position four-way valve 8 is selected in the embodiment, the mechanical reversing type two-position four-way valve has the characteristic of more stable performance, the mechanical reversing mechanism comprises a stirring piece driven by the oiling machine motor 6 or the lubricating pump motor 4 and a lever mechanism which is stirred to swing left and right by the stirring piece, one end or a position close to one end of the lever mechanism is connected with a valve core of the two-position four-way valve 8, so that the valve core switching valve position is driven, the forward and reverse rotation of the motor can drive the lever mechanism to swing towards different directions from different directions, and then the valve core of the two-position four-way valve 8 is driven to move towards different directions. Among the four oil ports of the two-position four-way valve 8, one of the two oil ports inside is connected with the oil tank 2, and the other is communicated with the outlet of the lubricating pump plunger pair 5, and the outlet of the oiling machine plunger pair 7 is communicated with the same oil port with the outlet of the lubricating pump plunger pair 5, and in other embodiments, the outlet of the oiling machine plunger pair 7 can be connected to a certain main oil path. The two external oil ports of the two-position four-way valve 8 form two external oil ports of the pump head assembly, and the two oil ports are respectively communicated with two main oil ways.

Two main oil ways can be provided with at least one double-line distributor 9, one of the two main oil ways is positioned on a movable arm of the excavator, the other two main oil ways is positioned on a bucket rod of the excavator and is used for lubricating a lubricating point position near the bucket rod, a progressive distributor 10 is further connected to the main oil way A, the progressive distributor 10 can be used for lubricating the lubricating point position near a horse pull head of the excavator, an oil filling pipe 11 is further connected to the main oil way B, the connection mode can be that the two main oil ways are detachably connected through a quick oil pipe joint or connected through a three-way ball valve, the end part of the oil filling pipe 11 is connected with an oil filling gun 12, the oil filling gun 12 is provided with a handle and a trigger, and the trigger is a switch of an on-off valve for controlling whether the oil filling gun 12 produces oil. In other embodiments, the fuel gun 12 may be directly connected to the lubrication point without a switch, and the fuel dispenser module may be started to deliver fuel, or the three-way ball valve may be used to control the on-off state. In this embodiment, the oil filling pipe 11 is generally 3-4 meters long, and some coiling racks 13 may be arranged on the arm to coil the oil filling pipe 11 thereon. The coiled frame 13 is formed by fixing one or more sheet metal parts or structures formed by bending steel bars on a bucket rod of the excavator, for example, two symmetrically arranged Z-shaped plates, and in order to prevent the oil filling pipe 11 from being separated from the coiled frame 13, a plurality of locking mechanisms can be further arranged to lock the oil filling pipe 11. In other embodiments, a commercially available self-retracting reel may be used without the coiled tubing. Regarding the connection position of the filler tube 11 to the main oil passage, if the coiled filler tube 11 is used, it is connected as near the arm as possible, so as to facilitate manual lubrication of the link area and reduce the length of the filler tube 11. If a self-return spool is used, it is positioned as close to the fill pump as possible to facilitate placement and securement of the larger size self-return spool 14.

In order to facilitate control of the system and ensure pressure safety of the system, an oil pressure switch 3 can be arranged in front of the port P of the two-position four-way valve 8 or on the main oil way and used for detecting the oil pressure in front of the main oil way or the port P, when the pressure reaches a set threshold value, a signal can be fed back to the controller 1, and the controller 1 controls the stalling of the lubricating pump motor 4 or the oiling machine motor 6. In other embodiments, the oil pressure switch 3 may be replaced with an oil pressure sensor, a relief valve, or the like.

For the two-wire distributor 9, the structure of the two-wire distributor is the prior art, including a valve body, a reversing valve core, a metering valve core and the like, in other embodiments, the progressive distributor 10 may not be directly connected to the main oil path, but is connected behind the reversing valve core or the metering valve core of the two-wire distributor 9, but still is generally communicated with the main oil path. Similarly, the filler pipe 11 may be connected not directly to the main oil line but after the reversing or metering valve of the two-wire distributor 9, but still in communication with the main oil line as a whole.

For the control module, the controller 1 in this embodiment can control the lubrication pump module and the oiling machine module, for the lubrication pump motor 4, the controller 1 can control the start-stop rule of the lubrication pump motor 4 and the steering of the lubrication pump motor 4, and the controller 1 controls the lubrication pump to operate according to the program set by the lubrication requirement of the lubrication system, and automatically perform the actions of stopping, working, reversing the motor and the like according to the set rule. The control of the oiling machine motor 6 is simpler, the oiling machine mode is started manually, the oiling machine motor 6 is controlled to run after the oiling machine mode is entered, the oiling machine mode is controlled manually, namely, the oiling machine mode is in a semi-automatic mode, the rest, running and other switching is not carried out according to a set rule, and the time of starting, the time of stopping, the amount of oil and the oil to which lubricating point are oil are determined by the intention of the person. In this embodiment, the controller 1 only starts the lubrication pump module to perform automatic centralized lubrication in the lubrication mode, and in the oiling machine mode, the controller 1 needs to start the oiling machine module and the lubrication pump module simultaneously or sequentially, so that the two modules can be combined to be used for manual lubrication of the oiling gun 12, and in other embodiments, only the oiling machine module can be started in the oiling machine mode. When the controller 1 and the two-position four-way valve 8 work cooperatively, the two-position four-way valve 8 has two working states, namely, a first state that the lubricant pump plunger pair 5 pumps out lubricant through the external oil port and a second state that the lubricant pump plunger pair 7 or the lubricant pump plunger pair 7 pumps out lubricant through one external oil port simultaneously with the lubricant pump plunger pair 5.

The valve position of the two-position four-way valve 8 can be switched by electromagnetic reversing or hydraulic driving reversing. The transmission mode of the plunger pair can also be other structures which can be converted into linear motion from rotation, such as an electric push rod, a ball screw, a crank block and the like. The control module can also adopt an automatic control device with lubrication equipment or communicate data with the mobile terminal in a wireless mode, and the mobile terminal is used as a man-machine interaction mode to realize control and parameter adjustment of the system. Regarding the number of the two-wire distributors 9 and the number of the progressive distributors 10, one or more than two-wire distributors 9 may be provided, one or more progressive distributors 10 may be provided, progressive distributors 10 may not be provided, and an independent lubricating oil pipe may be directly connected to a main oil path and directly connected to a certain lubricating point.

In this embodiment, the rotary pressing plate can be driven by the lubrication pump motor 4, and when in the oiling machine mode, the lubrication pump motor 4 is controlled to start, so as to drive the rotary pressing plate to rotate, that is, the rotary pressing plate works no matter in the oiling machine mode or the lubrication pump mode, thereby avoiding the pumping-out phenomenon of the lubrication agent pumped by the oil tank 2 in any mode. It should be noted that, since the displacement of the lubrication pump module is generally smaller than the displacement of the fuel dispenser module, in order to avoid evacuation of the fuel dispenser module during operation, the fuel pressure of the rotary pressure oil plate can be further increased by increasing the number of blades of the rotary pressure oil plate and improving the structure. For example, the rotating pressure plate of only one blade can be changed into two or four plates. In other embodiments, the rotating oil pressing plate can be directly driven to rotate by the oiling machine motor 6, and at this time, when the lubricating pump module is started, the oiling machine motor 6 needs to be started to drive the rotating oil pressing plate to rotate. Alternatively, in other embodiments, the fuel dispenser motor 6 and the lubrication pump motor 4 may independently control the rotation of the rotary pressure plates via a transmission such as a ratchet. In this embodiment, still be provided with on rotatory pressure oil plate and stir the pole, stir the pole and extend along the axial of oil tank 2, stir the pole and rotate along with rotatory pressure oil plate, thereby can strike off the lubricant that adheres to on the oil tank 2 inner wall with the inner wall contact of oil tank 2, make lubricant and oil tank 2 inner wall break away from to play the stirring effect to the lubricant, the lubricant of being convenient for descends.

As shown in fig. 2, as a control portion of the lubrication system, the manual-automatic lubrication control system includes a control module, a lubrication pump motor 4 and its motor driver 18, a fuel dispenser motor 6 and its motor driver 18, a pressure detection module, a temperature sensor 19, an oil level detection unit 20, a man-machine interaction module 22, a power supply module 21, and the like. The control module includes a processing unit 24, a timing unit 25, an AD conversion unit, a storage unit 26, and the like. The lubrication pump motor 4 and its motor driver are used to drive the corresponding plunger pair action of the lubrication pump to aspirate and pump the lubricant. The dispenser motor 6 and its motor drive are used to drive the corresponding plunger pair of the dispenser to aspirate and pump lubricant, the rated speed of the dispenser motor 6 being higher than the rated speed of the lubricant pump motor 4. The pressure detection module mainly comprises a pressure switch for detecting the pressure of the lubricant in the main oil path. The temperature sensor 19 is used to detect the ambient temperature. The oil level detection unit 20 mainly includes a laser correlation sensor installed in the oil tank for detecting the lubricant level of the oil tank. The man-machine interaction module 22 is mainly used for man-machine interaction with an operator to transfer information to each other, and may be a control panel, a mobile terminal, a key, etc. The power supply module 21 supplies power to each electronic component. The communication module 27 transmits information between the man-machine interaction module 22 and the control module. The control module receives signals of the detection modules and the sensors, and controls the execution components such as the motors to execute corresponding actions after processing.

In the embodiment, the oil pressure switch is used as a system safety protection module, and can feed back a signal to the controller when the system overpressure is detected, and the controller controls the system to stop so as to avoid the continuous rising of the system pressure; in other embodiments, the overflow valve or the current excess detection module may also be used as a safety protection module, and the overflow valve may open overflow when a certain pressure is reached, so as to ensure that the system will not continue to boost; the current excess detection module mainly comprises a sensor for detecting current, and when the current is increased due to the overpressure of the system, the current can be fed back to the controller, so that the system is controlled to stop, and the safety of the system is protected.

The lubrication control method specifically comprises the following steps: after the system is started, the control module works in a centralized lubrication mode according to program setting defaults, the control module controls the lubrication pump motor 4 to work according to a set program by controlling a motor driver of the lubrication pump motor 4, and under the control of the set program, the lubrication pump motor 4 automatically switches between working modes according to the program and resting working modes so as to enable each distributor to fill lubricant into corresponding lubrication points. Namely: after the rest of the way B is finished, the running state of the way A oil is entered, the lubricating pump relay is electrically closed and outputs DC24V to a motor driver of the lubricating pump motor 4, the lubricating pump motor 4 rotates positively, the way A is pressurized, the overpressure signal of the pump head is detected during the period of time A, the running time is finished after the setting time of X minutes, the lubricating pump relay is closed, the lubricating pump motor 4 stops rotating, and the running state of the way A is shifted to the working state of the rest mode. When an overpressure signal is detected during the oiling operation of the A path, the lubricating pump motor 4 stops rotating, meanwhile, the oiling timing is stopped, the lubricating pump motor 4 is started to continuously boost and oil after the delay of 10 seconds is carried out when the pressure in the A path is reduced to 35mPa, and the oiling timer continues to time until the operation of the A path is finished.

If the pressure does not fall below 35mPa within 60 seconds after overpressure occurs, the blockage is considered, and an EE-2 alarm prompt is given for 30 seconds at the end of the oil-applying of the B path.

And when the A-path stop is finished, automatically entering a B-path oiling operation process, enabling the lubricating pump to provide DC24V for a motor driver of the lubricating pump motor 4, reversing the lubricating pump motor 4, and after the B-path supercharging, detecting a pump head overpressure signal, and after the Y-path oiling operation process is finished, stopping the B-path oiling motor, and turning into the B-path stop mode. When the pump head overpressure signal is detected during the oil pumping operation of the B path, the lubricating pump motor 4 stops rotating and timing is stopped, the lubricating pump motor 4 is started to continuously boost pressure and pump oil after the pressure of the B path is delayed for 10 seconds when the pressure of the B path is reduced below 35mPa, and the oil pumping is continued to be timing until the operation of the B path is finished. If the pressure is not reduced below 35mPa within 60 seconds after the overpressure occurs, the blockage is considered, and an EE-2 alarm prompt is carried out for 30 seconds after the oiling of the B path is finished, and then the B path stop mode is entered.

If the oil is not blocked in the A path and the B path, the operation times are added with 1 when the oil is finished in the B path, and then the B path is in a stop mode.

When the oiling machine mode is needed, after receiving a start instruction of an operator, the control module firstly controls the lubricating pump motor 4 to stop running, then controls the oiling machine motor 6 to run at a rated rotation speed through a motor driver of the oiling machine motor 6, so that the operator can manually fill the lubricating points with the lubricating agent by using the oiling gun, meanwhile, the timing unit 25 starts to count down, the control module receives a closing instruction of the operator or controls the oiling machine motor 6 to stop running after the timing unit 25 counts down, and then controls the lubricating pump motor 4 to continue to run according to an unfinished program when the previous stop is finished. Namely: after the R' key of the panel is pressed for more than 4 seconds, the panel is lifted, and the liquid crystal display of 00:00 indicates that the oiling machine is in an operating mode. When the lubricant pump motor 4 and the lubricant pump motor 6 are in a stalling state when entering the lubricant pump mode, the timing starts from 00:00, the lubricant pump motor 4 starts to rotate reversely after 5 seconds, the lubricant pump motor 6 rotates after 10 seconds, the lubricant pump mode is ended after 20 minutes of operation, and then the lubricant pump is automatically returned to the lubricant pump operation mode. When the oiling machine works, if the pump head is over-pressure, the lubricating pump motor 4 and the oiling machine motor 6 are immediately stopped, when the pressure of the pipeline B is reduced below 35mPa, the lubricating pump motor 4 starts to reversely rotate, and after 5 seconds, the oiling machine motor 6 is restarted, and when the over-pressure occurs, the timing is not stopped, and the normal timing is kept. If the liquid level detects oil shortage in the operation mode of the oiling machine, an alarm EE-1 is immediately given, but the operation of the oiling machine is not stopped. If the 'R' key is pressed, the lubricant pump mode of operation is returned.

When the oil pump returns to the centralized lubrication mode, the operation is counted down from the rest of the A path, and when the counting down is finished, the oil pump immediately enters the oil pumping mode of the A path, and the low-speed small-displacement forward operation of the lubrication pump motor 4 is controlled according to the preset time.

When the ambient temperature is lower than the set value, and the oiling machine mode is entered, the control module controls the oiling machine motor 6 to operate at a lower set rated rotation speed through the motor driver of the oiling machine motor 6. Namely: when the ambient temperature is lower than a certain value below zero (for example-15 ℃), the rotating speed of the oiling machine is switched to be a medium gear speed (2200-2600 r/min) during the operation of the oiling machine, and the oiling machine continuously works at the medium gear speed, so that the problem that the oil mobility is reduced, the boosting speed is high, and the service life of the motor is prolonged under the severe working condition that the motor is frequently started is avoided.

When the oil level detection unit 20 detects that the oil level in the oil tank is lower than the set value, the control module controls the running motor to stop running and sends out a corresponding warning signal through the warning module 23.

The control module can judge whether the dispenser is blocked or not through a signal fed back by a Hall sensor arranged on the dispenser and used for detecting whether the plunger of the dispenser acts or not, and if the dispenser is blocked, a corresponding warning signal is sent out through the warning module 23.

In other embodiments, a three-way ball valve can be arranged on the main oil way B, the inlet of the three-way ball valve is connected with the main oil way, one of the two outlets is connected with the oil gun through an oil filling pipe, the other outlet is connected with a progressive distributor through an oil lubricating pipe, the progressive distributor can be used for lubricating areas such as a connecting rod, a breaking hammer or a slewing bearing of an excavator, and the main oil way can be changed to be communicated with the oil gun or be communicated with the progressive distributor through the switching of the three-way ball valve; in other embodiments, a switch valve can be arranged at the communication part of the oil gun and the main oil way through the oil gun pipe so as to control the on-off of the oil gun pipe and prevent the oil gun from leaking oil when the oil gun is not used.

In other embodiments, the key for starting the fuel dispenser mode may be disposed at the pump head assembly, the bucket rod or the fuel gun, or at least two of the three positions may be provided with a duplex or a triplex switch button, and any key may control the start and stop of the fuel dispenser mode.

Example 2 of an automated manual lubrication control system of the present invention: as shown in fig. 3, the difference from embodiment 1 is that one main oil path is dedicated for centralized lubrication, the other main oil path is dedicated for semi-manual lubrication of the oiling machine, specifically, a main oil path a is connected with a main progressive distributor 10, an outlet of the main progressive distributor 10 is connected with two sub progressive distributors 17, the main progressive distributor 10 is mounted on a movable arm of the excavator to lubricate lubrication points at the movable arm, and the two sub progressive distributors 17 are respectively corresponding to lubrication points at the bucket rod and the connecting rod and are also respectively fixed on the bucket rod and the connecting rod. The main oil line B is also normally arranged along the excavator, and the fuel truck 12 is directly connected to the end of the main oil line B or connected to the fuel truck 12 through a quick oil pipe joint. And because unloading is not needed after the progressive distributor works, the two-position four-way valve 8 can also plug the oil port of the oil tank 2 inside through the plug. When the lubricating pump works, the lubricating pump is defaulted to be in a lubricating mode after normal starting, the controller 1 controls the lubricating pump motor 4 to start and rotate positively, lubricant enters through the P port of the two-position four-way valve 8, flows out from the A port and enters the main oil way A, then enters the main progressive distributor 10, the sub progressive distributor 17 and the like, and is directly led into each lubricating point to be lubricated through the lubricating oil pipe; when the oiling machine is in the oiling machine mode, after the oiling machine is started manually, the controller 1 controls the lubricating pump motor 4 to rotate reversely, so that the two-position four-way valve 8 is switched to the B-port to discharge oil, then the oiling machine motor 6 is controlled to start, the lubricant enters the two-position four-way valve 8 through the P-port and flows into the main oil way B through the B-port, then enters the oiling pipe 11 and the oiling gun 12, and the lubricant can be discharged in real time by manually buckling a switch on the oiling gun 12.

The specific control process is as follows: when the centralized lubrication mode works, only the oil is discharged from the A path, and the connection mode of the distributor can be 1-level connection or mother-son connection. In the centralized lubrication mode, the lubrication pump motor M1 rotates forward at 300rpm, so that a shifting fork of the mechanical reversing mechanism shifts the two-position three-way valve to the A path, namely the PA is conducted, lubricating grease reaches a progressive distributor or a secondary sub-distributor in an oil path A, and lubricant is sequentially injected into a terminal friction pair lubrication point through each oil outlet of the progressive distributor. And stopping the machine for protection when the pressure of the pipeline A reaches 35MPa and overpressure occurs, judging whether blockage occurs, continuing to work until the pressure is reduced to below 35MPa, and prompting an end alarm EE-2 when the pressure is reduced to below 35MPa and if the blockage occurs.

The progressive distributor is provided with a Hall sensor, when oil is automatically poured, the Hall sensor feeds back a pulse signal with the height change to the controller, if the feedback signal does not generate the pulse signal with the height change but a fixed high-level or low-level signal when the blockage occurs, and when the blockage is detected, an alarm EE-2 prompt is given when the operation of the A path is finished.

When the oiling machine is required to work, a 'oiling machine' mode button is pressed, namely, the oiling machine enters an oiling machine working mode, the lubricating pump motor M1 runs reversely, the two-position three-way valve is shifted to the oil outlet of the B pipeline, namely PB is conducted, after 5 seconds of working, the oiling machine M2 motor runs unidirectionally at a high speed, the plunger is pushed to squeeze the lubricant into the B pipeline from the oil tank, and the lubricant is prevented from returning to the oil tank from the B pipeline by the cut-off effect of the steel ball type one-way valve. And the resultant force of the motors M2 and M1 is absorbed from the oil tank and discharged at the discharge capacity of 300mL/min, and when the pipeline pressure exceeds 35MPa, the machine is stopped for protection. When the oil gun is started to enable the pressure in the pipeline to be reduced to be lower than 35mPa, the motor is continuously controlled to run at a high speed in a unidirectional mode.

And automatically returning to the centralized lubrication mode stop state after the working time of the oiling machine mode reaches the preset 30 minutes, or manually pressing a button of the oiling machine mode to actively return to the centralized lubrication mode stop state.

When the ambient temperature is lower than a certain value below zero (for example-15 ℃), the rotating speed of the oiling machine is switched to be a medium gear speed (2200-2600 r/min) during the operation of the oiling machine, and the oiling machine continuously works at the medium gear speed, so that the problem that the oil mobility is reduced, the boosting speed is high, and the service life of the motor is prolonged under the severe working condition that the motor is frequently started is avoided.

Example 3 of an automated manual lubrication control system of the present invention: as shown in fig. 4, the difference from embodiment 1 is that the lubrication system corresponding to the system is a single-line lubrication system, the switching valve is a two-position three-way valve 8, only three oil ports P, T, A are provided, only one main oil path a is correspondingly provided, and a plurality of single-line distributors 9 are respectively connected to the main oil path a and are communicated with the oil gun 12 through the oil filling pipe 11. In the centralized lubrication mode, the lubrication pump motor 4 rotates to drive the lubrication pump plunger pair 5 to suck the lubricant from the oil tank 2 and pump the lubricant to the P port of the two-position three-way valve, then the lubricant enters the main oil way through the A port and then enters each single-wire distributor 9 so as to lubricate each lubrication point of the movable arm, the connecting rod, the bucket rod and the like corresponding to the single-wire distributor 9. After one oil outlet, the controller 1 controls the lubricating pump motor 4 to stop according to the feedback of the oil pressure switch 3 and according to a program, controls the two-position three-way valve 8 to be switched to the conduction state of the port A and the port T, the single-line distributor 9 and the main oil way unload oil return tank 2, and then enters the rest time to complete one period, and the combination of a plurality of periods is the normal working process of the centralized lubricating system. When the oiling machine mode is needed, the manual operation is switched to the oiling machine mode through an interaction mode, for example, a control button, after the controller 1 receives a switching signal, the two-position three-way valve 8 is controlled to be switched to a state that the port P is communicated with the port A, the oiling machine motor 6 is controlled to be started, the lubricating pump motor 4 is controlled to be started, the lubricating pump plunger and the oiling machine pump plunger both suck lubricating agent from the oil tank 2 and enter the two-position three-way valve 8 through the port P and then enter a main oil way, the single-wire distributor 9 outputs oil once, the reversing plunger of the single-wire distributor 9 stays at a limiting position and is not reversed (only after the main oil way is unloaded), and at the moment, the manual operation can use the oiling gun 12 to carry out manual oiling by opening a switch (trigger) of the oiling gun 12.

The specific control process is as follows: when the centralized lubrication works, only the oil is discharged from the A path, and the distributor is formed by connecting one or more single-line distributors in parallel.

In the centralized lubrication mode, the lubrication pump motor M1 rotates forward at 300rpm, so that a shifting fork of the mechanical reversing mechanism shifts the two-position three-way valve to an A path, namely AP is conducted, the lubricant reaches a single-line distributor in an oil path A, and grease is injected into a lubrication point of a friction pair at the tail end once. And stopping the machine for protection when the pressure of the pipeline A reaches 35MPa and overpressure occurs, judging whether blockage occurs, continuing to work until the pressure is reduced to below 35MPa, and controlling the motor of the M1 lubricating pump to rotate reversely for 5 seconds when the oil pumping is finished, so that the two-position three-way valve is shifted to the AT and the pipeline is depressurized. If blockage occurs in the oiling process, the running of the A path is finished, and an alarm of EE-2 is indicated.

The distributor is provided with an oil pressure switch, when oil is automatically pumped, an arrival pressure signal is fed back to the controller, if the arrival pressure signal exists, the running time of the A path is up, the lubricating pump motor M1 is reversed for 5 seconds to release pressure, then the running times are increased by one, if the arrival pressure signal does not exist, the M1 is reversed for 5 seconds to release pressure, and then an alarm 'EE-2' indicates that the arrival pressure is not generated.

When the oiling machine is required to work, a 'oiling machine' mode button is pressed, namely, the oiling machine is started in an oiling machine working mode, a motor M1 runs reversely and dials a shifting fork to an AP for conduction, an M2 oiling machine motor runs at a high speed in a unidirectional way after 5 seconds, and M1 and M2 push a plunger to squeeze grease from an oil tank into an A pipeline to be discharged at a discharge rate of 300mL/min, and the lubricating grease is prevented from returning from the A pipeline to the oil tank by a cut-off effect of a steel ball type one-way valve; the pipeline provides the oil dispenser with oil mass for lubrication in turn while providing the oil gun with large-displacement oil.

When the pipeline pressure exceeds 35MPa, triggering shutdown protection. When the oil gun is started to enable the pressure in the pipeline to be reduced to be lower than 35mPa, the motor is continuously controlled to run at a high speed in a unidirectional mode.

When the working time of the oiling machine reaches the preset 30 minutes, the oiling machine motor M2 is stopped firstly, then the lubricating pump motor M1 rotates reversely for 5 seconds to release pressure and then automatically returns to the centralized lubricating mode stop state, or the oiling machine mode button is manually pressed down, and the lubricating pump motor M1 actively returns to the centralized lubricating mode stop state after the pressure is released.

The specific method of the manual-automatic lubrication control method is the same as the system control method in each embodiment of the manual-automatic lubrication control system, and is not repeated.

Claims

1. Manual-automatic lubrication control system, its characterized in that includes:

2. The manual-automatic integrated lubrication control method is characterized by comprising the following steps of:

3. The automated manual lubrication control method of claim 2, wherein the set time is counted from a start signal of a control module received by a person operation or counted from a stop of the fuel dispenser.

4. The automated manual lubrication control method of claim 2, wherein the personnel operated activation signal is initiated at least a set time period between two operations to enter the fuel dispenser mode to prevent excessive use of the fuel dispenser mode.

5. The automated manual lubrication control method of claim 2, wherein after the control module controls the fuel dispenser motor to stall to end the fuel dispenser mode, the control module controls the lubrication pump motor to continue to operate according to an incomplete sequence when the previous centralized lubrication mode is switched to the fuel dispenser mode to stop.

6. The automated manual lubrication control method of claim 2, wherein the control module enters the centralized lubrication mode by default based on a programmed setting after the system is powered on.

7. The automated manual lubrication control method according to claim 2, wherein after the system is started, the system oil pressure is monitored at all times through the pressure detection module, when the detected oil pressure reaches a set safety pressure threshold value, the control module controls each motor in operation to stop running, and the timing unit starts timing, if the detected pressure is reduced to be lower than the set safety pressure threshold value in a set time period, the motor is continuously started to run, and if the detected pressure is not lower than the set safety pressure threshold value in the set time period, the control module determines that the motor is blocked.

8. The automated manual lubrication control method according to claim 2, wherein when the fuel dispenser mode is used, the control module receives a start signal of personnel operation, and then controls the fuel dispenser motor to operate or controls the lubrication pump motor and the fuel dispenser motor to operate simultaneously, so as to drive the corresponding plunger pair to suck and pump the lubricant to the fuel dispenser, so that an operator can hold the fuel dispenser to fill the lubricant to each lubrication point.

9. The automated manual lubrication control method of claim 2, wherein the control module controls the dispenser motor to operate at a lower set rated speed via a motor driver of the dispenser motor when the ambient temperature is below the set point and the dispenser mode is entered.

10. The automated manual lubrication control method according to claim 2, wherein the oil level of the oil tank is detected by the oil level detection unit, and when the oil level in the oil tank is detected to be lower than a set value, the control module controls the running motor to stop running and sends out a corresponding warning signal by the warning module.