CN201606640U - Pilot-operated intelligent lubricating system - Google Patents

Abstract

The utility model relates to a pilot-operated intelligent lubricating system, comprising an oil feed device and a control device, wherein the oil feed device comprises a lubricating pump, petroleum pipelines and oil feeders; the petroleum pipeline connects the lubricating pump and the lubricating point; the oil feeder is arranged on each petroleum pipeline; and the opening and the closing of the oil feeder valve are driven by the hydraulic oil provided by a hydraulic pump. The oil feeders and the hydraulic pump are respectively connected with the control device which controls the running of the hydraulic pump and receive oil-supply feedback signals sent out by the oil feeders. The pilot-operated intelligent lubricating system adopts a pilot-operated mode to control the action of the oil feeders, avoids the defect brought by the electric control, i.e., the action of the oil feeder can be influenced under the condition of the high temperature, high humidity or electromagnetic interference, solves the technical problem that the existing lubricating system is easily influenced by lubricating condition and has unstable operation due to use of an electric control mode, and is especially applicable to the lubrication of various large-scale devices.

Description

A kind of hydraulic control intelligent lubricating system

Technical field

The utility model relates to a kind of lubrication system.Specifically a kind of hydraulic control intelligent lubricating system.

Background technique

In lubrication technical field, lubricating method or lubricating fitting are divided into liquid lubrication (thin oil lubricant), semi-solid lubricated (dry oil lubrication), four kinds of solid lubrication and gas lubrications, two kinds of wherein common and the most basic is exactly thin oil lubricant and dry oil lubrications, above-mentioned various lubrication system is at lubrication principle, lubricated characteristics, the equipment requirement, Applicable scope, designing requirement, All aspects of such as concrete classification are all inequality, exist the difference of essence each other, its main cause be all kinds of lubrication systems the physical and chemical performance difference of the main oiling agent that is suitable for very big: different with the lubricant oil that thin oil lubricant is suitable for, the employed lubricating grease of dry oil lubrication is crowded into and is semi-solid or solid shape, because the difference of itself material structure, no longer belong to Newtonian liquid (lubricant oil belongs to incompressible Newtonian liquid), and belong to non Newtonian liquid, volume can change when being under pressure, cause that not only the pressure loss is big in use, and delivery volume is wayward, thereby it is very big in the control difficulty when lubricating point is carried, especially the shortcoming that the pressure loss is big when fed distance is far away is more outstanding, even causes normally providing lubricated (no matter single-line type still is that two-wire system is not always the case).In addition, it is big that lubricating grease also has viscosity, mobile poor, the big characteristics of resistance during motion, its evaluating and lubricant oil fundamental difference (are used viscosity index usually such as lubricant oil, and lubricating grease is to use the cone penetration index usually without viscosity), and do not have the cooling and the cleaning action of lubricant oil basically, easy-clear not after solid impurity is sneaked into.These characteristics of lubricating grease have determined dry oil lubrication to have the different of essence in All aspects of such as lubrication principle, lubricated characteristics, equipment requirement, Applicable scope, designing requirement, concrete classification with thin oil lubricant.

Publication number is that the utility model patent of CN2482622Y discloses a kind of intelligent multipoint mode lubricating fitting, this device comprises oil station and main control cabinet, pipeline oil supply controller in parallel is passed through to each lubricating point in the oil station, utilize the program behavior of Controlled by Programmable Controller oil supply controller, programmable controller is arranged in the main control cabinet, connects each oil supply controller by circuit.This installs alternative single-line type and two-wire system centralized lubrication, controls automatically fuel feeding as required by programmable controller program, and is reliable and stable; Real-time monitoring of computer can accurately indicate the fault point, and fault treatment is fast, the carefree conversion of system's automatic or manual, and regulation range is wide, the precision height, favorable expandability has realized lubricated automation and intellectuality.But because the technological scheme of this patent disclosure has adopted automatically controlled control mode, big or be subjected under the occasion such as electromagnetic interference in high temperature, humidity, automatically controlled validity is affected easily, when serious even can lose efficacy.

The model utility content

For this reason, the operation that technical problem to be solved in the utility model is to overcome existing lubrication system is subjected to the influence of high temperature, high humility easily or is subjected to the defective of electromagnetic interference, provides a kind of and is suitable at high temperature, high humility or the hydraulic control intelligent lubricating device that used by the occasion of electromagnetic interference.

For solving the problems of the technologies described above, hydraulic control intelligent lubricating system described in the utility model comprises oil feed device and control gear; Described oil feed device comprises lubricant pump, connect the pipeline road of described lubricant pump and lubricating point and be installed in oilier on the pipeline road; Described oilier includes housing, have spool chamber in the described housing, in the described spool chamber spool can be installed axially slidably, one side of described spool is provided with the bias piece that it is resetted, also include oil hydraulic pump, be formed with hydraulic channel on the housing of described spool one side, described hydraulic channel is connected with described oil hydraulic pump, and the pressured fluid that described oil hydraulic pump is carried is used for driving described spool.

Be provided with position-limit mechanism between described spool and the described hydraulic channel, the pressured fluid that described position-limit mechanism is carried by described oil hydraulic pump drives; Described control gear is controlled the operation of described oil hydraulic pump.

Described position-limit mechanism comprise be opened in the piston cavity between described spool and the described hydraulic channel and be located in the described piston cavity with described piston cavity match merge can with the coaxial mobile promotion piston of described spool, the diameter of described piston cavity is greater than the diameter of described spool chamber, described promotion piston has the projection that can stretch into described spool chamber near a side of described spool chamber, more than or equal to the spool working stroke, the range of described promotion piston equals described spool working stroke to described projection in the size of spool axial direction.

Also be provided with the seal arrangement that is used for sealing described piston cavity on the housing of described piston cavity one side, described hydraulic channel comprises and takes shape in the pipeline on the described housing and form in the liquid transport pipeline that matches with described pipeline on the described seal arrangement.

Described control gear also comprises liquid controller, and described liquid controller receives and carry out the action command of described control gear to described pump.

Described spool is provided with oil-feed tank and retaining oil shoulder, also have the filler opening and the oil outlet that are connected with described spool chamber in the described housing, when described spool is in the closed position, described retaining oil shoulder is blocked described filler opening, when described spool is shown in an open position, described filler opening communicates with two described oil outlets simultaneously by described oil-feed tank, and described spool working stroke is the displacement of described spool between from the closed position to the open position.

Also comprise two fluid sensing devices that are connected with two described oil outlets respectively, each described fluid sensing device comprises signal generator and is used for receiving the signal transmitting device of the signal of described signal generator generation, when described spool was positioned at open position, two described signal generators were connected with described spool chamber by two sensing passages that form in the described housing respectively.

Described signal generator comprises the signal chamber, can be arranged on the sensingpiston in the described signal chamber axially slidably, described sensingpiston is divided into described signal chamber the influent stream chamber and goes out to flow the chamber, one end of described sensingpiston is installed with sense cell, and an end of described sensingpiston also is provided with the piston spring that described sensingpiston is resetted.

Described signal generator is provided with and is used for regulating the described controlling device that goes out to flow the chamber maximum volume.

Described controlling device is an adjustable lever, at least one end formed tapped hole that has of described sensingpiston, form the screw thread that matches with described tapped hole on the described adjustable lever, by changing the stroke that length that described adjustable lever screws in described tapped hole changes described sensingpiston.

Described control gear comprises programmable controller and the computer that is connected with described programmable controller.

Also comprise repeater, described repeater is used for receiving the signal of described oilier transmission, just described signal is transferred to described control gear, and described repeater comprises one-level repeater that is used for receiving and transmit the signal that institute's signal generator sends and the secondary repeater that is used for receiving and transmitting described one-level repeater signal.

Technique scheme of the present utility model has the following advantages compared to existing technology: (1) hydraulic control intelligent lubricating system described in the utility model adopts the hydraulic control mode that the action of oilier is controlled, avoided the automatically controlled defective of bringing, promptly in high temperature, high humility or be subjected under the occasion of electromagnetic interference, the action of oilier can be affected.Hydraulic control intelligent lubricating system described in the utility model in addition adopts hydraulic pressure to control the switching of oilier spool, safety and reliability.(2) also be installed with the seal arrangement that is used for sealing described piston cavity on the described housing, described liquid transport pipeline by described seal arrangement with shown in piston cavity be connected, when the action of spool went wrong, detachable lower sealing device overhauled, maintenance is convenient.(3) described lubrication system also comprises repeater, described repeater be used for receiving the oilier transmission signal, transfer signals to described control gear, reception is also transmitted the action command that described control gear sends liquid control device, between can significantly reducing, the transfer to signal by repeater is connected in parallel on the cable of control gear, prevent that too many cable from taking big place, or stir in the course of the work together, influence is to the detection of oil feeder fuel feeding situation.(4) oilier that is adopted can be monitored whether oil supply of oilier in real time.In addition, the every action of this two point fuel feeding oilier once, the certain distance of piston motion in the described fluid sensor squeezes out a certain amount of lubricant oil, and can regulate the amount of the lubricant oil that the oilier action once extrudes by controlling device.

Description of drawings

For the easier quilt of content of the present utility model is clearly understood, according to specific embodiment of the utility model also in conjunction with the accompanying drawings, the utility model is described in further detail, wherein below

Fig. 1 is the structural representation of lubrication system;

Fig. 2 is the hydraulic control schematic diagram of lubrication system;

Fig. 3 is oilier front section view when spool is in the closed position;

Fig. 4 is that oilier is at front section view when spool is shown in an open position;

Fig. 5 is the three-dimensional cutaway view of oilier;

Fig. 6 is the three-dimensional cutaway view of oilier;

Fig. 7 is the structural representation that the signal generator of flow regulator has been installed;

Fig. 8 is the integrated stereogram of oilier;

Fig. 9 is the control principle figure of lubrication system.

Reference character is expressed as among the figure: 1-housing, 2-spool chamber, 21-filler opening, 22a, the 22b-oil outlet, 3-spool, 31-oil-feed tank, 32-retaining oil shoulder, the 4-position-limit mechanism, the 41-piston cavity, 42-promotes piston, 43-cavity, the 5-valve core spring, 6-signal generator, 60-signal chamber, 61-sensingpiston, the 62-sense cell, the 63-piston spring, 64-influent stream chamber, 65-goes out to flow the chamber, the 66-adjustable lever, the 67-inflow port, 68-goes out head piece, 69-feeder current mouth, 7-signal transmitting device, 8-pipeline, 9-seal arrangement, 10-base, the 11-oil inlet pipe, the 12-oil pipe, the 13-oilier is integrated, the 14-sensing passage, the 100-oil hydraulic pump, 101-lubricant pump, 102-gasoline pump, the 103-pressure transducer, 104-filter, 105-oilier, 200-master control cabinet, 201-repeater, 202-supervisory device, the 203-liquid controller, 204-reduction valve, 205-relief valve.

Embodiment

Hydraulic control intelligent lubricating system described in the utility model comprises oil feed device and control gear; Described oil feed device comprises lubricant pump 101, connect the pipeline road of described lubricant pump 101 and lubricating point and be installed in oilier 105 on the pipeline road; Described oilier 105 includes housing 1, have spool chamber 2 in the described housing 1, in the described spool chamber 2 spool 3 can be installed axially slidably, one side of described spool 3 is provided with the bias piece that it is resetted, also include oil hydraulic pump 100, be formed with hydraulic channel on the housing 1 of described spool 3 one sides, described hydraulic channel is connected with described oil hydraulic pump 100, and the pressured fluid that described oil hydraulic pump 100 is carried is used for driving described spool 3.Described oil hydraulic pump 100 links to each other with oilier 105 by hydraulic channel, also is equipped with on the described hydraulic channel to be used for the hydraulic pressure that oil hydraulic pump 100 provides is reduced to the scope reduction valve 204 that needs, and is used for the relief valve 205 of stable hydraulic.Between reduction valve 204 and oilier 105 liquid controller 203 is installed also, is used for the logical of controlling liquid and short, its control principle figure sees Fig. 2.Described control gear control oil hydraulic pump 100, and receive the fuel feeding feedback signal of sending from oilier 105.

With reference to figure 3, Fig. 4, Fig. 5 and Fig. 6, each oilier 105 comprises housing 1, be opened in spool chamber 2 in the housing 1, can be arranged on spool 3 and fluid sensing device in the described spool chamber 2 axially slidably.Described fluid sensing device comprises signal generator 6 and signal transmitting device 7, and described signal transmitting device 7 is arranged on a side of described signal generator 6.One side of described spool 3 is provided with the position-limit mechanism 4 that promotes spool 3 motions and its movement travel is limited, and the other end is provided with the bias piece that spool 3 is resetted, and is valve core spring 5 in the present embodiment.

Offer oil-feed tank 31 and retaining oil shoulder 32 on the described spool 3, offer filler opening 21 and two oil outlet 22a on the described spool chamber 2,22b, two described oil outlet 22a, 22b is opened on the described spool chamber 2 symmetrically.In described housing 1, also offer two respectively with two oil outlet 22a, the sensing passage 14 that 22b is connected, the other end of described sensing passage 14 is connected with described signal generator 6.When spool 3 was in closed condition, as Fig. 3 and shown in Figure 5, described retaining oil shoulder 32 was blocked described filler opening 21, and lubricant oil can not enter spool chamber 2.When described spool 3 was shown in an open position, described filler opening 21 was by described oil-feed tank 31 and two described oil outlet 22a, and 22b communicates simultaneously, and as Fig. 4 and Fig. 6, the displacement of described spool 3 between from the closed position to the open position is described spool working stroke.The position-limit mechanism that moves through of described spool 3 promotes, and limits the displacement of its motion by position-limit mechanism.

Described position-limit mechanism 4 comprises the piston cavity 41 that is opened in described spool chamber 2 one sides and is slidably disposed on the promotion piston 42 that matches with described piston cavity 41 in the described piston cavity 41, described promotion piston 42 can coaxially move with described spool 3, is used for promoting described spool 3 and slides in described spool chamber 2.Described promotion piston 42 end that contacts with spool 3 has the projection that can stretch into described spool chamber, is the cylindrical bump of a diameter less than described spool chamber 2 diameters in the present embodiment.The diameter of described piston cavity 41 is greater than the diameter of described spool chamber 2, and the diameter of described promotion piston 42 the other ends is also greater than the diameter of described spool chamber 2.Described promotion piston 42 is away from being provided with cavity 43 between end of described spool 3 and the described piston cavity 41, increases the lifting surface area of described promotion piston 42 away from described spool 3 time.In the present embodiment, described cavity 43 is opened in and promotes can save the space of piston cavity 41 like this, thereby also can dwindle the volume of whole oilier in the end of piston 42 away from described spool 3.

Also be installed with a seal arrangement 9 that is used for sealing described piston cavity 41 on the described housing 1, be formed with the liquid transport pipeline 8 that communicates with described cavity 43 on the described seal arrangement 9.In the present embodiment, described seal arrangement 9 is one to be fixed on screw on the housing 1 by screw thread.When the motion of spool went wrong, detachable lower sealing device 9 overhauled, and made that maintenance is convenient and easy.

The action that promotes piston 42 drives by the hydraulic pressure that oil hydraulic pump 100 provides, logical and the open close control gear of crossing of described liquid is controlled in the present embodiment, described control gear comprises master control cabinet 200 and liquid controller 203, to the 200 input instructions of master control cabinet, liquid controller 203 valve opens, liquid enters described cavity 43 by liquid inlet pipe 12, makes to promote piston 42 motions.When promoting piston 42 and move to position shown in Fig. 3, it is inconsistent with spool chamber 2 to promote piston 42 large diameter ends, and the motion that promotes piston 42 is stopped, and oil-feed tank 31 communicates with filler opening 21 at this moment, and spool 3 is shown in an open position.Spool lubricant oil enters in the oil-feed tank 31 of spool 3, and respectively by two oil outlet 22a, 22b flows into two passages 14 that are located in the housing 1, and flow into respectively in two signal generators 6.The displacement of spool from closed position to open position is a spool working stroke.The maximum displacement of described position-limit mechanism 4 motions equals the spool working stroke.Behind the preset time interval, master control cabinet 200 sends signal to liquid controller 203, and liquid stream is disconnected, and spool 3 returns to closed position under the effect of valve core spring 5, finishes a fuel feeding action.The every action of existing oilier once can only be carried out fuel feeding to a lubricating point, so whole lubricating system need use more oilier, and structure more complicated, cost are than higher.Therefore and oilier of the present invention can carry out fuel feeding to two lubricating points simultaneously, can make whole lubricating system simplify and reduce cost.

As Fig. 3, Fig. 4 and Fig. 7, in the present embodiment, in described housing 1, have two signal chambeies 60 up and down, the side in each described signal chamber 60 is equipped with a signal transmitting device 7.All be provided with sensingpiston 61 in each signal chamber 60 slidably, described sensingpiston 61 is divided into described signal chamber 60 influent stream chamber 64 and goes out to flow chamber 65.Have the inflow port 67 that communicates with described sensing passage 14 on the housing 1 of described influent stream chamber 64 1 sides, see Fig. 7, have out head piece 68 on the described housing 1 that goes out to flow chamber 65 1 sides, see Fig. 7, what lubricant oil was extruded signal generator 6 under the pressure effect of sensingpiston 62 goes out head piece 68, enters the pipeline that leads to lubricating point.On the described housing 1 that goes out to flow chamber 65 1 sides, also have the feeder current mouth 69 of make-up oil, see Fig. 7.Described sensingpiston 61 is provided with piston rod near an end that goes out to flow chamber 65, and described upper cover of piston rod is equipped with piston spring, and described piston spring is used for making sensingpiston 61 to reset.The end of described piston rod is formed with mounting hole vertically, and mounting hole is fixed with sense cell 62, is permanent magnet in this enforcement.Described signal transmitting device is hall sensor or dry reed-pipe, is arranged on the end that sensingpiston 61 is fixed with permanent magnet.Along with the motion of sensingpiston 61, described influent stream chamber 64 and the described volume that goes out to flow chamber 65 constantly change.Because the stroke of described sensingpiston 61 is determined, promptly the maximum volume that goes out to flow chamber 65 is determined, thereby sensingpiston 61 each high order ends from Fig. 3, Fig. 4 move to low order end, also determine from the described amount that goes out the oiling agent that head piece 68 flows out, can realize from going out the quantitative control of the oiling agent that head piece 68 flows out by the stroke of setting sensingpiston 61.When the lubricant oil in the influent stream chamber 64 promotes sensingpiston 61 when going out to flow chamber 65 motions, this permanent magnet is near signal transmitting device 7, signal transmitting device 7 is subjected to sending signal by cable to master control cabinet 200 after the effect of magnetic force, the green light of master control cabinet 200 is bright, expression sensingpiston 61 is expressed to lubrication piping with lubricant oil in signal generator 6, do not produce and stop up, if sensingpiston 61 is not moved, 7 inductions of signal transmitting device are less than sense cell 62, then master control cabinet 200 red lights are bright, show the lubricated obstruction that produces.

Described signal generator among the above embodiment also can be installed flow regulator, concrete structure such as Fig. 7 of the signal generator of controlling device have been installed, described controlling device is an adjustable lever 66 in the present embodiment, described sensingpiston 61 at least one end formed tapped holes that have, described adjustable lever 66 is formed with the screw thread that matches with described tapped hole.Change the stroke of described sensingpiston by the length that changes the described tapped hole of described adjustable lever 66 screw-ins, thereby adjust the amount of the lubricant oil of at every turn extruding in the stream chamber.

Figure 8 shows that the oilier that combines by four oiliers integrated 13, each described oilier 13 is installed on the base 10 by screw, described base 10 is provided with oil inlet pipe 11 and liquid inlet pipe 12, described liquid inlet pipe 12 is connected with described cavity 43 by described liquid transport pipeline 8, and described oil inlet pipe 11 is connected with described filler opening 21.This oilier is integrated can be simultaneously to eight lubricating point fuel feeding, with eight filling valves of employing the mode that eight lubricating points carry out fuel feeding is compared, this oilier integrated 13 only adopts four oiliers, has dwindled shared space greatly, and structure is also simple than existing lubricating fitting.When wherein some oiliers break down, can unload screw, with standby oilier the oilier that breaks down is replaced, can normally use, compare with all-in-one-piece lubricating utensil, its dismounting, easy to maintenance, and can not influence use.In above embodiment, described oilier integrated 13 is the oilier of the integrated any number of quantity of the lubricating point of fuel feeding according to the actual needs.

Each described fluid sensing device will be transferred to master control cabinet 200 about the signal of fuel feeding situation needs four cables, realize detecting simultaneously the fuel feeding situation of a plurality of oiliers, need at master control many cables in parallel cashier's office in a shop, need 32 cables when detecting as each oilier 105 to oilier integrated 13, these cables had both taken a lot of spaces, very easily stirred together again in the course of the work.In the present embodiment, oilier 105 being carried out grading control, is the grading control schematic representation as Fig. 9.Wherein the first order is the signal transmitting device 7 of described fluid sensing device, the major function of described signal transmitting device 7 is to collect the movable signal of sensingpiston, input high level is given single-chip microcomputer, by single-chip microcomputer the switching value signal is converted into the RS485 signal and is transferred to repeater, described repeater comprises one-level repeater and secondary repeater, described one-level repeater is transferred to the secondary repeater by cable with described signal, and described secondary repeater is transferred to second level control gear with described signal.Described second level control gear is a liquid controller 203, adopts slave station central processor CPU 222 and PROUFIBUS module EM277 in the present embodiment,, the function of bearing is as follows: by the free mouthful of switching signal that eight fluid sensing devices are collected in the PORT0 repeating query; Fuel feeding feedback signal after signal that opens or closes liquid stream that the reception PLC S7-300 of main website sends and oilier spool 3 are opened; And the fuel feeding feedback signal is passed through the PROUFIBUS network delivery give S7-300.PROUFIBUS module EM277 function is to connect CPU in master station 315 and slave station CPU222 by the PROUFIBUS network, exchange at a high speed the data that data that CPU in master station 315 sends and CPU222 send, control the input output of each slave station I/O point, will advance the data block of CPU315 from the data storage that each slave station receives.Described third level control gear is master control cabinet 200 in the present embodiment, be S7-300 of main website and polyvinyl touch screen MT8070, the central processing unit (CPU) of the described S7-300 of main website adopts CPU315-2DP, and the CPU315 processor is the core of system, bears the function of third level accepting device: the control of oil station; The circulation fuel feeding; Control the input output of each slave station I/O point; Receive the lubricating point fuel feeding state of each slave station judgement and offer upper-position unit, HMI communication data.The fourth stage is a upper-position unit, adopts HMI, SINNT remote wireless monitoring to constitute the supervisory device 202 of whole lubricating system.HMI adopts polyvinyl touch screen MT8056, with the interface of PLC be Ethernet, can carry out shirtsleeve operation from touch screen and control on-the-spot fuel feeding, revise parameter and inquiry lubricating point state, Realtime Alerts etc.In the present embodiment, upper-position unit adopts control computer, to whole system monitor, information filing, form etc.Monitoring software adopts Siemens WINCC industrial configuration software, with the interface of PLC be Ethernet.

In the above-described embodiments, under the less situation of lubricating point, also can cancel repeater 201, each cable directly is connected on the described master control cabinet 200.Described master control cabinet 200 links to each other with supervisory device 202 away from the scene, controls and detect the fuel feeding of described oil feeder, and the staff need not to operate at the scene, only just enters master-control room when needing repairing.

Hydraulic control intelligent lubricating system described in the utility model both had been applicable to that dry oil lubrication also can be used for thin oil lubricant.

Obviously, the foregoing description only is for example clearly is described, and is not the qualification to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all mode of executions.And conspicuous variation of being extended out thus or change still are among the protection domain of the utility model creation.

Claims (12)

1. a hydraulic control intelligent lubricating system comprises oil feed device and control gear; Described oil feed device comprises lubricant pump (101), connect the pipeline road of described lubricant pump (101) and lubricating point and be installed in oilier (105) on the pipeline road; Described oilier (105) includes housing (1), have spool chamber (2) in the described housing (1), in the described spool chamber (2) spool (3) can be installed axially slidably, one side of described spool is provided with the bias piece that it is resetted, it is characterized in that: also include oil hydraulic pump (100), be formed with hydraulic channel on the housing of described spool one side, described hydraulic channel is connected with described oil hydraulic pump (100), and the pressured fluid that described oil hydraulic pump (100) is carried is used for driving described spool (3).

2. hydraulic control intelligent lubricating system according to claim 1 is characterized in that: be provided with position-limit mechanism (4) between described spool (3) and the described hydraulic channel, the pressured fluid that described position-limit mechanism (4) is carried by described oil hydraulic pump drives; Described control gear is controlled the operation of described oil hydraulic pump (100).

3. hydraulic control intelligent lubricating system according to claim 2, it is characterized in that: described position-limit mechanism comprise the piston cavity (41) that is opened between described spool (3) and the described hydraulic channel and be located in the described piston cavity (41) with described piston cavity (41) match merge can with the coaxial mobile promotion piston (42) of described spool (3), the diameter of described piston cavity (41) is greater than the diameter of described spool chamber (2), described promotion piston (42) has the projection that can stretch into described spool chamber (2) near a side of described spool chamber (2), more than or equal to the spool working stroke, the range of described promotion piston equals described spool working stroke to described projection in the size of spool axial direction.

4. hydraulic control intelligent lubricating system according to claim 3, it is characterized in that: also be provided with the seal arrangement (9) that is used for sealing described piston cavity (41) on the housing of described piston cavity (41) one sides, described hydraulic channel comprises taking shape in the pipeline on the described housing and forming in described seal arrangement (9) goes up the liquid transport pipeline (8) that matches with described pipeline.

5. according to each described hydraulic control intelligent lubricating system among the claim 1-4, it is characterized in that: described control gear also comprises liquid controller (203), and described liquid controller (203) receives and carry out the action command of described control gear to described pump (100).

6. hydraulic control intelligent lubricating system according to claim 5, it is characterized in that: described spool (3) is provided with oil-feed tank (31) and retaining oil shoulder (32), also have the filler opening (21) and the oil outlet (22a that are connected with described spool chamber (2) in the described housing (1), 22b), when described spool is in the closed position, described retaining oil shoulder (32) is blocked described filler opening (21), when described spool is shown in an open position, described filler opening (21) is by described oil-feed tank (31) and two described oil outlet (22a, 22b) communicate simultaneously, described spool working stroke is the displacement of described spool (3) between from the closed position to the open position.

7. hydraulic control intelligent lubricating system according to claim 6, it is characterized in that: also comprise respectively and two described oil outlet (22a, two fluid sensing devices that 22b) are connected, each described fluid sensing device comprises signal generator (6) and is used for receiving the signal transmitting device (7) of the signal of described signal generator generation, when described spool (3) when being positioned at open position, two described signal generators (6) are connected with described spool chamber (2) by two sensing passages (14) that form in the described housing respectively.

8. hydraulic control intelligent lubricating system according to claim 7, it is characterized in that: described signal generator (6) comprises signal chamber (60), can be arranged on the sensingpiston (61) in the described signal chamber (60) axially slidably, described sensingpiston (61) is divided into described signal chamber (60) influent stream chamber (64) and goes out to flow chamber (65), one end of described sensingpiston (61) is installed with sense cell (62), and an end of described sensingpiston (61) also is provided with the piston spring (63) that described sensingpiston (61) is resetted.

9. hydraulic control intelligent lubricating system according to claim 8 is characterized in that: described signal generator (6) is provided with and is used for regulating the described controlling device that goes out to flow chamber (65) maximum volume.

10. hydraulic control intelligent lubricating system according to claim 9, it is characterized in that: described controlling device is an adjustable lever (66), at least one end formed tapped hole that has of described sensingpiston (61), described adjustable lever forms the screw thread that matches with described tapped hole on (66), changes the stroke of described sensingpiston (61) by the length that changes the described tapped hole of described adjustable lever (66) screw-in.

11. according to each described hydraulic control intelligent lubricating system among claim 1-4 or the claim 6-10, it is characterized in that: described control gear comprises programmable controller and the computer that is connected with described programmable controller.

12. hydraulic control intelligent lubricating system according to claim 11, it is characterized in that: also comprise repeater (201), described repeater is used for receiving the signal of described oilier (106) transmission, just described signal is transferred to described control gear, and described repeater (201) comprises and is used for receiving and the one-level repeater of the signal that transmission institute's signal generator (6) sends and be used for receiving and transmitting the secondary repeater of described one-level repeater signal.

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