CN2493820Y

CN2493820Y - Lubrication controller for dredger with programmable controller

Info

Publication number: CN2493820Y
Application number: CN 00263832
Authority: CN
Inventors: 蔡学军
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-11-26
Filing date: 2000-11-26
Publication date: 2002-05-29
Anticipated expiration: 2010-11-26

Abstract

A lubrication control device with a programmable logic controller for an excavator is provided, the input interface circuit of the programmable logic controller is connected with a test button, reset button, run-time interval selection switch of oil pump, hydraulic detection switch of oil pump also called as changeover switch, and running signal and walking signal of the excavator, the central processing unit of the programmable logic controller is provided with an operation timer and fault timer, and the output interface circuit of the programmable logic controller is connected with the corresponding electromagnetic valve of the switch oil pump, operation indicator light, fault indicator light, undervoltage indicator light, operation indicator light, fault indicator light and downtime relay of the excavator; the lubrication control device has a novel design and small size, operates reliably, is used easily and maintained simply and adjusted precisely, is convenient and fast, and also reduces the hardware facilities and decreases correspondingly control failure caused by the hardware defects, ensuring the safe operation of the configured large electric excavator for mining and increasing significantly the serviceability rate and utilization rate of the large electric excavator for mining.

Description

The excavator of band programmable controller is with lubricating control gear

The utility model relates to mining or quarries with the control gear of equipment, relates in particular to the lubricated control gear of a kind of excavator with programmable controller.

Existing mining Large Electric excavator, its equipment, turntable and traveling gear are respectively by separately oil pump oil injecting lubricating, the lubricated control gear of adapted has two kinds basically, discrete components and parts such as a kind of employing relay, by regulating adjustable resistance, the endurance that control oiling time or oil pump interval working time and fault timing promptly allow oil pump to break down, the another kind of micro motor for driving rotating disk that adopts, control the oiling time by the locating stud of regulating on the rotating disk, and by another rotating disk control fault timing.Because lubricated environment is acid, and greasy dirt is serious, components and parts are fragile, cause hardover failure rate height, and especially many lubricated control gear often can be worked simultaneously, cause blast to reduce, and excavator is shut down, and influence manufacturing efficiency.Adopt discrete components and parts such as relay, also have the defective that the oiling time is difficult to adjust, the excessive or not enough problem of oiling occurs, so that waste oil plant or lubricated not in place.

The purpose of this utility model is to remedy the deficiencies in the prior art, proposes the lubricated control gear of a kind of excavator with programmable controller.

The purpose of this utility model is achieved by the following technical programs.

The excavator of this band programmable controller comprises 3 test button AN that start 3 groups of oil pump trial runs respectively with lubricated control gear _SY1, AN _SY2, AN _SY3, get rid of 3 reset button AN after the corresponding oil pump fault _FW1, AN _FW2, AN _FW3, the operation of the corresponding oil pump of indication 3 run indicator XD _YX1, XD _YX2, XD _YX3, 3 fault indicating lamp XD breaking down of the corresponding oil pump of indication _GZ1, XD _GZ2, XD _GZ3, it is characterized in that the run indicator XD that is provided with a programmable controller PLC and indicates its operation respectively _YX0, the fault indicating lamp XD that breaks down _GZ0, the cell voltage deficiency under-voltage tutorial light XD _QY0, tutorial light situation test button AN _SY0And with 3 groups of oil pumps matching used 3 the setting oil pump working times of selector switch S at interval _X1, S _X2, S _X3, programmable controller PLC is made up of input interface circuit 1, central processing unit 2 and output interface circuit 3, and what be connected with input interface circuit 1 has a test button AN _SY1, AN _SY2, AN _SY3, AN _SY0, reset button AN _FW2, AN _FW2, AN _FW3, selector switch S _X1, S _X2, S _X3, oil pump oil pressure detecting switch is reverser S _H1, S _H2, S _H3And through the excavator run signal of electrical contact SR input and the excavator walk signal of importing through electrical contact PR, one end of above components and parts is connected with respective input of input interface circuit 1 respectively, the other end of above components and parts all is connected with the public input terminal of input interface circuit 1, be provided with in the central processing unit 2 and set at interval run timing device 3 oil pump working times respectively, set the fault timer that 3 oil pumps operations allow 5 minutes endurance of breaking down, the respective electrical magnet valve DCF that the switch oil pump is arranged that is connected with output interface circuit 3 respectively ₁, DCF ₂, DCF ₃, run indicator XD _YX0, fault indicating lamp XD _GZ0, under-voltage tutorial light XD _QY0, run indicator XD _YX1, XD _YX2, XD _YX3, fault indicating lamp XD _GZ1, XD _GZ2, XD _GZ3, excavator shuts down relay STR, an end of above components and parts is connected with corresponding output end of output interface circuit 3 respectively, the other end of above components and parts all is connected with public output of output interface circuit 3.

The utility model modern design, volume is small and exquisite, reliable, easy to use, safeguard simple, control program comprise lubricant oil oiling time or oil pump working time at interval, the fault timing promptly allows the various parameters of the endurance that oil pump breaks down all to be set by corresponding software, adjust accurately, convenient and swift, also reduced hardware facility, and the corresponding control fault that is caused by these hardware deficiencies that reduced is guaranteed the safe operation of adapted mining Large Electric excavator of the present utility model, obviously improves serviceability rate, the utilization ratio of mining Large Electric excavator.

Accompanying drawing is a circuit diagram of the present utility model.

The contrast accompanying drawing is also made an explanation to the utility model in conjunction with the embodiments below.

Embodiment is the lubricated control gear of the band programmable controller of the mining electric excavator of adapted 2300XP type.

The 2300XP type is mining electric excavator adapted 1 ^#, 2 ^#, 3 ^#Oil pump, 1 ^#, 2 ^#Oil pump is given equipment, turntable oil injecting lubricating, 3 ^#Oil pump is given the traveling gear oil injecting lubricating.According to the not operation simultaneously and with the characteristics of equipment, turntable job priority, programmable controller PLC sets corresponding program, guarantees 1 of equipment, turntable and the traveling gear of excavator ^#, 2 ^#, 3 ^#The oil pump timesharing is started, and 1 ^#, 2 ^#Oil pump has precedence over 3 ^#Oil pump starts.Promptly when excavator operation, 3 ^#Oil pump is respectively with 1 ^#Or 2 ^#Oil pump is simultaneously between breaking-in period, if 2 ^#Or 1 ^#The working time of oil pump respective settings, gear timing in 10 or 15 or 20 or 25 minutes finished at interval, and 3 ^#Oil pump will cut out immediately, make way for 1 ^#, 2 ^#Oil pump starts.1 ^#, 2 ^#Between breaking-in period oil pump while, 3 ^#Even the gear timing of oil pump respective settings finishes, do not allow to start yet.Only 1 ^#Or 2 ^#When oil pump cuts out, just allow 3 ^#Oil pump reruns.And when excavator is walked, 1 ^#, 2 ^#Oil pump will cut out immediately, only allow 3 ^#Oil pump starts.Avoid 1 ^#, 2 ^#, 3 ^#Oil pump starts simultaneously, causes blast to reduce, and excavator is shut down, and influences manufacturing efficiency.

Present embodiment comprises 3 test button AN that start 3 groups of oil pump trial runs respectively _SY1, AN _SY2, AN _SY3, get rid of 3 reset button AN after the corresponding oil pump fault _FW1, AN _FW2, AN _FW3, the operation of the corresponding oil pump of indication 3 run indicator XD _YX1, XD _YX2, XD _YX3, 3 fault indicating lamp XD breaking down of the corresponding oil pump of indication _GZ1, XD _GZ2, XD _GZ3, it is characterized in that being provided with the run indicator XD that a programmable controller PLC, indication programmable controller PLC move _YX0, the fault indicating lamp XD that breaks down _GZ0, indication programmable controller PLC cell voltage deficiency under-voltage tutorial light XD _QY0, tutorial light situation test button AN _SY0And with 3 groups of oil pumps matching used 3 the setting oil pump working times of selector switch S at interval _X1, S _X2, S _X3Programmable controller PLC adopts C60P-CDR-A, is made up of input interface circuit 1, central processing unit 2 and output interface circuit 3, and the total number of terminals of its I/O is 60.With having that input interface circuit 1 is connected: test button AN _SY1, AN _SY2, AN _SY3, AN _SY0, reset button AN _FW1, AN _FW2, AN _FW3, selector switch S _X1, S _X2, S _X3, oil pump oil pressure detecting switch is reverser S _H1, S _H2, S _H3And through the excavator run signal of electrical contact SR input and the excavator walk signal of importing through electrical contact PR, one end of above components and parts is connected with respective input of input interface circuit 1 respectively, and the other end of above components and parts all is connected with the public input terminal of input interface circuit 1.The respective electrical magnet valve DCF that the switch oil pump is arranged that is connected with output interface circuit 3 ₁, DCF ₂, DCF ₃, run indicator XD _YX0, fault indicating lamp XD _GZ0, under-voltage tutorial light XD _QY0, run indicator XD _YX1, XD _YX2, XD _YX3, fault indicating lamp XD _GZ1, XD _GZ2, XD _GZ3, excavator shuts down relay STR, an end of above components and parts is connected with corresponding output end of output interface circuit 3 respectively, the other end of above components and parts all is connected with public output of output interface circuit 3.Be provided with in the central processing unit 2 set 3 oil pump working times respectively at interval 10 or 15 or 20 or 25 minutes the run timing device, set the fault timer that 3 oil pumps operations allow 5 minutes endurance of breaking down respectively, the information that central processing unit 2 is come according to respective input from input interface circuit 1, send instruction, by the respective electrical magnet valve DCF of the coupled switch oil pump of the corresponding output end control of output interface circuit 3 ₁, DCF ₂, DCF ₃, run indicator XD _YX0, fault indicating lamp XD _GZ0, under-voltage tutorial light XD _QY0, run indicator XD _YX1, XD _YX2, XD _YX3, fault indicating lamp XD _GZ1, XD _GZ2, XD _GZ3, excavator shut down relay STR respectively dead electricity, and start respectively by setup program or reset corresponding run timing device and fault timer.Above-mentioned all tutorial light XD adopt AD16, and all button AN adopt L16, the time selection switch S _X1, S _X2, S _X3Adopt LW2-6/D083, reverser S _H1, S _H2, S _H3Adopt H29, solenoid valve DCF ₁, DCF ₂, DCF ₃Adopt K23LD.

24 volts of DC electrical source of present embodiment are provided by the control power supply of excavator.When shutting down in excavator emerged in operation lubrication trouble, present embodiment still can be worked as usual.When the control power connection of excavator, present embodiment gets the electric holding state that is in.Input interface circuit 1 does not have run signal through the input terminal of electrical contact SR input excavator run signal.Press test button AN _SY0, central processing unit 2 starts the fault timers and picks up counting, and sends instruction, controls all tutorial light and gets electricly, all not shinny, is changed.Press test button AN more respectively _SY1, AN _SY2, AN _SY3, when the timing of fault timer finished, if faults such as pipeline ruptures, oil pressure did not reach reference value, control electromagnetic valve DCF ₁, DCF ₂, DCF ₃Dead electricity is closed corresponding oil pump respectively.Control fault tutorial light XD also _GZ1, XD _GZ2, XD _GZ3Shinny, after fixing a breakdown, press reset button AN _FW1, AN _FW2, AN _FW3, central processing unit 2 is sent instruction, control fault tutorial light XD _GZ1, XD _GZ2, XD _GZ3Dead electricity is extinguished, and enters normal holding state.

When excavator moves, enter central processing unit 2 by the respective terminal of input interface circuit 1 through the excavator run signal of electrical contact SR input.Central processing unit 2 is sent instruction, control run indicator XD _YX0Get electric shinny.If reverser S _H1, S _H2, S _H3Occur bad connection individually or all or damage fault, central processing unit 2 is sent instruction, and time-delay control excavator is shut down relay STR dead electricity, makes excavator out of service, also control fault tutorial light XD _GZ1, XD _GZ2, XD _GZ3Must be electric shinny, after fixing a breakdown, press reset button AN _FW1, AN _FW2, AN _FW3, central processing unit 2 is sent instruction, control fault tutorial light XD _GZ1, XD _GZ2, XD _GZ3Dead electricity is extinguished.If selector switch S _X1, S _X2, S _X3Place 0 promptly not move the position, central processing unit 2 is sent instruction, and time-delay control excavator is shut down relay STR dead electricity, makes excavator out of service.Never allow excavator under unlubricated situation, to move.If place non-0, central processing unit 2 starts the run timing device and picks up counting, and when finishing to timing, central processing unit 2 starts the fault timer and picks up counting, and sends instruction, control run indicator XD _YX1, XD _YX2, XD _YX3Get electric shinny.Send instruction simultaneously, control electromagnetic valve DCF ₁, DCF ₂, DCF ₃Respectively electric, start corresponding oil pump, reach reference value up to oil pressure, reverser S _H1, S _H2, S _H3Commutation respectively, central processing unit 2 is sent instruction, control electromagnetic valve DCF ₁, DCF ₂, DCF ₃Dead electricity is closed corresponding oil pump respectively.Control run indicator XD simultaneously _YX1, XD _YX2, XD _YX3Dead electricity is extinguished, and the fault timer is resetted, and starts the run timing device again immediately and picks up counting, and enters the timing of following one-period.When selecting switch S _X1, S _X2, S _X3The gear timing of setting finishes respectively again, solenoid valve DCF ₁, DCF ₂, DCF ₃Once more respectively electric, start corresponding oil pump, reach reference value up to oil pressure, reverser S _H1, S _H2, S _H3Commutate respectively and stop, so moving in circles.And when excavator is walked, entering central processing unit 2 by the respective terminal of input interface circuit 1 through the excavator walk signal of electrical contact PR input, central processing unit 2 is sent instruction, cuts off solenoid valve DCF ₁, DCF ₂With run indicator XD _YX1, XD _YX2Power supply, 1 ^#, 2 ^#Oil pump will cut out immediately, and simultaneously, central processing unit 2 is sent instruction, control electromagnetic valve DCF ₃Energising only allows 3 ^#Oil pump starts, and control run indicator XD _YX3Shinny.Following working procedure is with the same the moving in circles of front explanation.Disappear up to walk signal, cut off solenoid valve DCF ₃With run indicator XD _YX3Power supply, 3 ^#Oil pump cuts out.If 1 ^#, 2 ^#The gear timing of oil pump respective settings finishes 1 again ^#, 2 ^#Oil pump starts again.In the excavator running, in case the abnormal conditions of programmable controller cell voltage deficiency occur, central processing unit 2 is sent instruction, controls under-voltage tutorial light XD _QY0Must be electric shinny, battery is in time changed in prompting.If indivedual or whole reverseres bad connection occurs or damage fault; and when the timing of fault timer finishes; faults such as pipeline rupture appear; oil pressure does not reach reference value, or faults such as airduct breaks occur, and oil pump does not have blast; central processing unit 2 all can be sent instruction; time-delay control excavator is shut down relay STR dead electricity, makes excavator out of service, also control fault tutorial light XD _GZ1, XD _GZ2, XD _GZ3Must be electric shinny, prompting is in time fixed a breakdown.

Present embodiment is on probation to be shown, can make the serviceability rate of mining electric excavator year of 2300XP type of adapted improve 8 percentage points, and utilization ratio improves 5 percentage points, can also annual saving spare part takes, 800,000 yuan of Cost of repair and maintenance.

Claims

1, a kind of excavator with programmable controller starts 3 test button (AN that 3 groups of oil pumps are tried out respectively with lubricating control gear, comprising _SY1), (AN _SY2), (AN _SY3), get rid of 3 reset button (AN after the corresponding oil pump fault _FW1), (AN _FW2), (AN _FW3), 3 run indicator (XD of the corresponding oil pump of indication operation _YX1), (XD _YX2), (XD _YX3), 3 fault indicating lamp (XD breaking down of the corresponding oil pump of indication _GZ1), (XD _GZ2), (XD _GZ3), it is characterized in that the run indicator (XD that is provided with a programmable controller (PLC) and indicates its operation respectively _YX0), the fault indicating lamp (XD that breaks down _GZ0), the under-voltage tutorial light (XD of cell voltage deficiency _QY0), tutorial light situation test button (AN _SY0) and with 3 groups of oil pumps matching used 3 the setting oil pump working times of selector switch (S at interval _X1), (S _X2), (S _X3), programmable controller (PLC) is made up of input interface circuit (1), central processing unit (2) and output interface circuit (3), and what be connected with input interface circuit (1) has a test button (AN _SY1), (AN _SY2), (AN _SY3), (AN _SY0), reset button (AN _FW1), (AN _FW2), (AN _FW3), selector switch (S _X1), (S _X2), (S _X3), oil pump oil pressure detecting switch is reverser (S _H1), (S _H2), (S _H3) and through the excavator run signal of electrical contact (SR) input and the excavator walk signal of importing through electrical contact (PR), one end of above components and parts is connected with respective input of input interface circuit (1) respectively, the other end of above components and parts all is connected with the public input terminal of input interface circuit (1), be provided with in the central processing unit (2) and set 3 the oil pump working time of run timing devices at interval respectively, set the fault timer that the operation of 3 oil pumps allows 5 minutes endurance of breaking down respectively, the respective electrical magnet valve (DCF that the switch oil pump is arranged that is connected with output interface circuit (3) ₁), (DCF ₂), (DCF ₃), run indicator (XD _YX0), fault indicating lamp (XD _GZ0), under-voltage tutorial light (XD _QY0), run indicator (XD _YX1), (XD _YX2), (XD _YX3), fault indicating lamp (XD _GZ1), (XD _GZ2), (XD _GZ3), excavator shuts down relay (STR), an end of above components and parts is connected with corresponding output end of output interface circuit (3) respectively, the other end of above components and parts all is connected with public output of output interface circuit (3).