CN102168800B - Dual-point oil supply oil feeder and oil feeder integration - Google Patents
Dual-point oil supply oil feeder and oil feeder integration Download PDFInfo
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- CN102168800B CN102168800B CN 201010113869 CN201010113869A CN102168800B CN 102168800 B CN102168800 B CN 102168800B CN 201010113869 CN201010113869 CN 201010113869 CN 201010113869 A CN201010113869 A CN 201010113869A CN 102168800 B CN102168800 B CN 102168800B
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Abstract
The invention relates to a dual-point oil supply oil feeder, which comprises a shell, a valve core cavity formed in the shell and a valve core formed in the valve core cavity, wherein an oil inlet and two oil outlets are formed on the shell; when the valve core is positioned at the closed position, an oil baffle shoulder blocks the oil inlet; and when the valve core is positioned at the opening position, the oil inlet and the two oil outlets are communicated simultaneously. The dual-point oil supply oil feeder can supply oil to two lubricating points simultaneously when making motion at a time, so that the oil supply efficiency is improved; and the technical problem that the conventional oil feeder only can supply the oil to one lubricating point is solved. In the oil feeder integration, a plurality of dual-point oil supply oil feeders are integrated according to the number of the lubricating points, more lubricating points can be lubricated simultaneously under the condition of few oil feeders, so the lubricating efficiency is improved. Simultaneously, a structure of the conventional lubricating device is simplified, and the cost is reduced, so the dual-point oil supply oil feeder is particularly suitable for lubricating occasions when the lubricating points are more.
Description
Technical field
The present invention relates to a kind of oilier.Specifically a kind of can be simultaneously to the oilier of two lubricating point fuel feeding.
Background technique
Existing oilier action once can only be carried out fuel feeding to a lubricating point, is applicable to only have equipment several or tens lubricating points.When need to needing tens even up to a hundred oiliers when having that tens even the equipment of up to a hundred lubricating points is lubricated, cause complex structure, cost high.The utility model patent that publication number is CN201246595Y discloses a kind of two-point supply valve-type oil feeder, this valve-type oil feeder comprises housing spool and piston, have valve pocket and piston cavity in housing, spool can axially movably be arranged in valve pocket, and piston can axially movably be arranged in piston cavity.Spool can move axially between the first working position and the second working position.When the first working position, filler opening is communicated with the second outlet by the first valve pocket and first flow, the first outlet cut-off.When the second working position, filler opening is communicated with the second outlet by the second valve pocket and the second runner, the first outlet cut-off.When the second working position, filler opening is communicated with the first outlet by the second valve pocket and first flow, the second outlet cut-off.Described piston is arranged in described piston cavity, and can move axially by the effect of oil pressure.By spool to-and-fro motion between the first and second working positions, this two-point supply valve-type oil feeder can be alternately two lubricating point supplying lubricating oils, has improved working efficiency.This two-point supply valve-type oil feeder is in order to carry out fuel feeding to two lubricating points, compare with oilier commonly used and saved a valve, but increased a piston cavity and be located at the piston in piston cavity, its structure is more complicated still, and its realization is that two lubricating points are replaced to fuel feeding, and efficiency is lower.In addition, existing oilier or scattering device, take larger place, or concentrate in a certain equipment, not easy-maintaining.
Summary of the invention
For this reason, technical problem to be solved by this invention is to overcome existing oilier complex structure, inefficient defect, provides a kind of action once can carry out the oilier of fuel feeding to two lubricating points simultaneously.
It is integrated that another object of the present invention is to provide a kind of oilier, overcome that the oilier quantity that existing lubricating fitting needs is many, complex structure, defect that cost is high, in the situation that, to the lubricating point fuel feeding of equal number, can greatly reduce the quantity of oilier.
For solving the problems of the technologies described above, two point fuel feeding oilier of the present invention, comprise
Housing, have spool chamber in described housing, also has the filler opening and two oil outlets that are connected with described spool chamber in described housing;
Spool, can be arranged on axially slidably in described spool chamber, described spool is provided with oil-feed tank and gear oil shoulder, and described spool one side is provided with the position-limit mechanism that promotes valve core movement and the displacement of described valve core movement is limited, and described spool one side is equipped with the valve core spring that makes described valve core reset;
When described spool is in the closed position, described gear oil shoulder is blocked described filler opening; When described spool is in an open position, described filler opening is communicated with two described oil outlets by described oil-feed tank simultaneously.
Described position-limit mechanism comprise the piston cavity that is opened in described spool one side and be located in described piston cavity with described piston cavity match merge can with the promotion piston of the coaxial movement 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, described projection is more than or equal to the spool working stroke in the size of described spool axial direction, and the range of described promotion piston equals described spool working stroke.
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 is positioned at open position, two described signal generators are connected with described spool chamber by two sensing passages that form in described housing respectively.
Described signal generator comprises that the signal chamber can be arranged on the sensingpiston in described signal chamber axially slidably, described sensingpiston is divided into He Chuliu chamber, influent stream chamber by described signal 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 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 matched with described tapped hole on described adjustable lever, the length that screws in described tapped hole by changing described adjustable lever changes the stroke of described sensingpiston.
Described position-limit mechanism is controlled by compressed gas source.
Be equipped with on the housing of described piston cavity one side for sealing the seal arrangement of described piston cavity, be formed with the air delivering pipeline that connects described piston cavity and compressed gas source on described seal arrangement.
Described promotion piston is formed with air cavity away from a side of described spool.
Comprise the described two point fuel feeding of several above-mentioned any one oilier, described two point fuel feeding oilier is fixedly mounted on base, described base is provided with oil inlet pipe and suction tude, described suction tude is connected with described piston cavity by described air delivering pipeline, and described oil inlet pipe is connected with described filler opening.
Technique scheme of the present invention has the following advantages compared to existing technology: the every action of (1) two point fuel feeding of the present invention oilier once can be carried out fuel feeding to two lubricating points simultaneously, and the lubricating efficiency of oilier is doubled.Secondly, this oilier has removed piston or other structures, makes structure simpler, has therefore greatly reduced cost, and in addition, the fuel feeding of each lubricating point is separate, and the fuel feeding of a lubricating point produces to stop up can not affect the fuel feeding of other lubricating points.(2) adopt position-limit mechanism to be limited the moving displacement of spool, guarantee that spool opens and closes the validity of position.(3) valve is connected with fluid sensor, but Real-Time Monitoring oilier oil supply whether.The every action of this two point fuel feeding oilier once in addition, the certain distance of piston movement in described fluid sensor, squeeze out a certain amount of lubricant oil, therefore can carry out quantitative fuel feeding to lubricating point by the mode of controlling the oilier time of movement, set up in addition the controlling device of the range of regulating this piston, therefore, the oil pump capacity of a stroke of the every movement of regulating piston according to the actual needs.(4) adopt pressurized gas to carry out the switching of control valve, safety and reliability not only, also greatly save electric energy, also avoided in addition existing Electromagnetic Control easily to be subject to the defect of temperature and humidity impact, made this oilier also can guarantee normal fuel feeding under high temperature or the higher operating mode of humidity.(5) also be installed with a seal arrangement that is used for the packed-piston chamber on described housing, when the motion of spool goes wrong, detachable lower sealing device is overhauled, and maintenance is convenient.(6) oilier of the present invention is integrated, and that the quantity that not only can reduce oilier makes is simple in structure, reduce costs, raise the efficiency, and also can carry out Real-Time Monitoring to the fuel feeding of oilier.(7) the integrated convenient disassembly of this oilier, when certain oilier breaks down, change with standby oilier the oilier broken down, and can come into operation, and can not affect the fuel feeding of other lubricating points.
The accompanying drawing explanation
For content of the present invention is more likely to be clearly understood, below according to a particular embodiment of the invention and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is the front section view of described two point fuel feeding oilier when spool is positioned at closed position;
Fig. 2 is the front section view of described two point fuel feeding oilier when spool is positioned at open position;
Fig. 3 is the three-dimensional cutaway view of described two point fuel feeding oilier spool while being positioned at closed position;
Fig. 4 is the three-dimensional cutaway view of described two point fuel feeding oilier spool while being positioned at open position;
Fig. 5 is the structural representation that the signal generator of flow regulator is installed;
The stereogram that the described oilier of Fig. 6 is integrated.
In figure, reference character is expressed as: the 1-housing, the 2-spool chamber, the 21-filler opening, 22a, the 22b-oil outlet, the 3-spool, the 31-oil-feed tank, 32-gear oil shoulder, the 4-position-limit mechanism, the 41-piston cavity, 42-promotes piston, the 43-air cavity, the 5-valve core spring, the 6-signal generator, 60-signal chamber, the 61-sensingpiston, the 62-sense cell, the 63-piston spring, 64-influent stream chamber, 65-goes out to flow chamber, the 66-adjustable lever, 67-influent stream mouth, 68-goes out head piece, 69-feeder current mouth, 7-signal transmitting device, the 8-air delivering pipeline, the 9-seal arrangement, the 10-base, the 11-oil inlet pipe, the 12-suction tude, the 13-oilier is integrated, the 14-sensing passage.
Embodiment
Two point fuel feeding oilier of the present invention, as shown in Figures 1 to 4, comprise housing 1, be opened in the interior spool chamber 2 of housing 1, can be arranged on axially slidably spool 3 and fluid sensing device in described spool chamber 2.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 gear oil shoulder 32 on described spool 3, offer filler opening 21 and two oil outlet 22a on described spool chamber 2,22b, two described oil outlet 22a, 22b is opened on 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, during in closed condition, as shown in Fig. 3 and Fig. 5, described gear oil shoulder 32 is blocked described filler opening 21, and lubricant oil can not enter spool chamber 2.When described spool 3 is in an open position, described filler opening 21 is 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 matched with described piston cavity 41 in described piston cavity 41, and the pressurized gas that the action of promotion piston 42 provides by compressed gas source drives.Described promotion piston 42 can coaxially move with described spool 3, is used for promoting described spool 3 in the interior slip of 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 that a diameter is 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 also is greater than the diameter of described spool chamber 2.Described promotion piston 42 is away from being provided with air cavity 43 between an end of described spool 3 and described piston cavity 41, is used for stored-gas increase the lifting surface area of described promotion piston 42 away from described spool 3 time.In the present embodiment, described air cavity 43 is opened in and promotes, in the end of piston 42 away from described spool 3, can save like this space of piston cavity 41, thereby also can dwindle the volume of whole oilier.
Also be installed with a seal arrangement 9 that is used for sealing described piston cavity 41 on described housing 1, be formed with the air delivering pipeline 8 communicated with described air cavity 43 on described seal arrangement 9.In the present embodiment, described seal arrangement 9 is one by screw thread, to be fixed on the screw on housing 1.When the motion of spool goes wrong, detachable lower sealing device 9 is overhauled, and makes maintenance convenient and easy.
When the air valve of compressed gas source is opened, the gas of certain pressure, be 0.4MPa in the present embodiment, by pneumatic tube, enters described air cavity 43, makes to promote piston 42 promotion spools 3 and move to the left side in figure.When promotion piston 42 moves to the position shown in Fig. 2, its large diameter end and spool chamber 2 are inconsistent, make to promote stopping of piston 42, and spool chamber 2 communicates with oil inlet pipe 11 tunnels, and valve is in an open position.Lubricant oil enters in the oil-feed tank 31 of spool 3, and respectively by two oil outlet 22a, 22b flows into the sensor passage 14 be located in housing 1, and then flow in two signal generators 6.Therefore the every action of existing oilier once can only be carried out fuel feeding to a lubricating point, needs to use more oilier, and complicated structure, cost compare are high.And oilier of the present invention can carry out fuel feeding to two lubricating points simultaneously, simplify the structure.In addition, the present invention has adopted the switching of pressurized gas control valve, the air pressure adopted is very little, and the control of gas valve is only needed to very little electric current, for the mode that adopts larger Current Control valve, little power consumption of the present invention, but energy saving, simultaneously owing to only adopting little electric current, also safer.Also avoid in addition existing Electromagnetic Control easily to be subject to the defect of temperature and humidity impact, made this oilier also can guarantee normal fuel feeding under high temperature or the higher operating mode of humidity.
The structure of signal generator is as shown in Figure 1, Figure 2 with shown in Fig. 5: have upper and lower two signal chambeies 60 in described housing 1, the side in each described signal chamber 60 is equipped with a signal transmitting device 7.The interior sensingpiston 61 that all is provided with slidably in each signal chamber 60, described sensingpiston 61 is divided into described signal chamber 60 influent stream chamber 64 and goes out to flow chamber 65.Have the influent stream mouth (not shown) communicated with described spool chamber 2 on the housing 1 of described influent stream chamber 64 1 sides, have out the head piece (not shown) on the described housing 1 that goes out to flow chamber 65 1 sides, make lubricant oil be extruded signal generator 6 under the pressure-acting of pick-up piston, enter the pipeline that leads to lubricating point.Also have the feeder current mouth (not shown) of make-up oil on the described housing 1 that goes out to flow chamber 65 1 sides.Described sensingpiston 61 is provided with piston rod near an end that goes out to flow chamber 65, the position that described piston rod and described sensingpiston 61 join is provided with step, be used for carrying out spacingly to being located at out piston spring 63 between the interior described sensingpiston 61 in stream chamber 65 and described housing 1, described piston spring 63 is used for making spring reset.The end of described piston rod is formed with mounting hole vertically, mounting hole is fixed with a sense cell 62, be a permanent magnet in the present embodiment, described signal transmitting device 7 is a hall sensor in the present embodiment, is arranged on the side 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, the maximum volume that goes out to flow chamber 65 is determined, thereby the each high order end from Fig. 1, Fig. 2 of sensingpiston 61 moves 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.Lubricant oil in influent stream chamber 64 promotes sensingpiston 61 when going out to flow chamber 65 motion, this permanent magnet is near hall sensor, hall sensor is subject to the backward supervisory system of effect of magnetic force and sends signal, mean that sensingpiston 61 is expressed to lubrication piping by lubricant oil in signal generator 6, do not produce and stop up.Hall sensor in above embodiment also can substitute with dry reed-pipe.
Described signal generator in above embodiment also can be installed flow regulator, concrete structure is as Fig. 5: as described in controlling device be an adjustable lever 66 in the present embodiment, at least one end formed tapped hole that has of described sensingpiston 61, described adjustable lever 66 is formed with the screw thread matched 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-in, thereby adjust the amount of the lubricant oil of at every turn extruding in the stream chamber.
In above embodiment, the driving mode of oilier spool is not limited only to the Starting mode that compressed gas source provides, also can drive in other way, as hydraulic driving, be specially the pressure oil input air delivering pipeline 8 that oil hydraulic pump is provided, utilize the motion of pressure-driven position-limit mechanism and then the driving spool of liquid; Perhaps motor-driven driving, be specially and adopt the driven by motor eccentric wheel, promotes transmission shaft and then promote position-limit mechanism and valve core movement.
Figure 6 shows that the oilier combined by four oiliers integrated 13, each described oilier should be fixedly mounted on base 10 by screw, described base 10 is provided with oil inlet pipe 11 and suction tude 12, described suction tude 12 is connected with described air cavity 43 by described tracheae 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 the mode that adopts eight filling valves to carry out fuel feeding to eight lubricating points, compare, this oilier integrated 13 only adopts four oiliers, has greatly dwindled shared space, and structure is also simple than existing lubricating fitting.When wherein some oiliers break down, can unload screw, with standby oilier, the oilier broken down is replaced, can normally use, with all-in-one-piece lubricating utensil, compare, its dismounting, easy to maintenance, and can not affect use.In above embodiment, described oilier integrated 13 can be according to the oilier of the integrated any number of quantity of actual lubricating point.
Two point fuel feeding oilier of the present invention is not only applicable to liquid lubricant oil, is particularly useful for solid-state and semi-solid lubricating grease.
Obviously, above-described embodiment is only for example clearly is described, and is not the restriction 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 exhaustive without also giving all mode of executions.And the apparent variation of being extended out thus or change are still among the protection domain in the invention.
Claims (11)
1. a two point fuel feeding oilier, is characterized in that: comprise
Housing (1), have spool chamber (2) in described housing (1), also have the filler opening (21) and two oil outlets (22a, 22b) that are connected with described spool chamber (2) in described housing (1);
Spool (3), can be arranged on axially slidably in described spool chamber (2), described spool (3) is provided with oil-feed tank (31) and gear oil shoulder (32), described spool (3) one sides are provided with the position-limit mechanism (4) that promotes spool (3) motion and the displacement of described spool (3) motion is limited, and described spool (3) one sides are equipped with the valve core spring (5) that described spool (3) is resetted;
When described spool (3) is in the closed position, described gear oil shoulder (32) is blocked described filler opening (21); When described spool (3) is in an open position, described filler opening (21) is communicated with by described oil-feed tank (31) and two described oil outlets (22a, 22b) simultaneously.
2. two point fuel feeding oilier according to claim 1, it is characterized in that: described position-limit mechanism (4) comprise the piston cavity (41) that is opened in described spool (3) one sides and be located in described piston cavity (41) with described piston cavity (41) match merge can with the promotion piston (42) of the coaxial movement 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), described projection is more than or equal to the spool working stroke in the size of described spool (3) axial direction, the range of described promotion piston (42) equals described spool working stroke.
3. two point fuel feeding oilier according to claim 2, 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 (6) generation, when described spool (3), while 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 described housing (1) respectively.
4. two point fuel feeding oilier according to claim 3, it is characterized in that: described signal generator (6) comprises signal chamber (60), can be arranged on axially slidably the sensingpiston (61) in described signal chamber (60), 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.
5. two point fuel feeding oilier according to claim 4, it is characterized in that: described signal generator (6) is provided with for regulating the described controlling device that goes out to flow chamber (65) maximum volume.
6. two point fuel feeding oilier according to claim 5, 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 matched with described tapped hole on (66), and the length that screws in described tapped hole by changing described adjustable lever (66) changes the stroke of described sensingpiston (61).
7. two point fuel feeding oilier according to claim 1, it is characterized in that: described position-limit mechanism (4) is controlled by compressed gas source.
8. according to the described two point fuel feeding of any one oilier in claim 2-6, it is characterized in that: described position-limit mechanism (4) is controlled by compressed gas source.
9. two point fuel feeding oilier according to claim 8, it is characterized in that: the seal arrangement (9) for sealing described piston cavity (41) is installed on the housing (1) of piston cavity (41) one sides, is formed with the air delivering pipeline (8) that connects described piston cavity (41) and compressed gas source on described seal arrangement (9).
10. two point fuel feeding oilier according to claim 9, it is characterized in that: described promotion piston (42) is formed with air cavity (43) away from a side of described spool.
11. an oilier is integrated, it is characterized in that: comprise the described two point fuel feeding of several claims 9 or 10 oilier, described two point fuel feeding oilier is fixedly mounted on base (10), described base (10) is provided with oil inlet pipe (11) and suction tude (12), described suction tude (12) is connected with described piston cavity (41) by described air delivering pipeline (8), and described oil inlet pipe (11) is connected with described filler opening (21).
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010113869 CN102168800B (en) | 2010-02-25 | 2010-02-25 | Dual-point oil supply oil feeder and oil feeder integration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010113869 CN102168800B (en) | 2010-02-25 | 2010-02-25 | Dual-point oil supply oil feeder and oil feeder integration |
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| CN102168800A CN102168800A (en) | 2011-08-31 |
| CN102168800B true CN102168800B (en) | 2013-12-18 |
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| CN 201010113869 Active CN102168800B (en) | 2010-02-25 | 2010-02-25 | Dual-point oil supply oil feeder and oil feeder integration |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102878411A (en) * | 2012-10-26 | 2013-01-16 | 江苏智源科技创业园有限公司 | Plate type oil feeder |
| CN107023741B (en) * | 2016-02-02 | 2019-02-26 | 沈阳路邦机械有限公司 | Oiling machine |
| CN109838675A (en) * | 2019-03-22 | 2019-06-04 | 漯河润宝智能润滑设备有限公司 | Intelligent double site type oil feeder |
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| CN2777337Y (en) * | 2004-07-08 | 2006-05-03 | 博山润滑设备厂 | Computer programme-controlled lubricating device |
| CN201050673Y (en) * | 2006-06-15 | 2008-04-23 | 王东升 | Valve type oil supplier |
| CN101334126A (en) * | 2008-07-30 | 2008-12-31 | 周一平 | Displacement type double valves lubrication apparatus |
| CN201246595Y (en) * | 2008-08-29 | 2009-05-27 | 北京中冶华润科技发展有限公司 | Double-point supply valve type oil feeder |
| CN201368316Y (en) * | 2009-03-09 | 2009-12-23 | 职子竖 | Lubricant distributing system |
| CN201688115U (en) * | 2010-02-25 | 2010-12-29 | 北京中冶华润科技发展有限公司 | Double-point oil supply feeder and oil feeder integration |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57146994A (en) * | 1981-03-06 | 1982-09-10 | Hitachi Ltd | Oiler for bearing of rotary machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2777337Y (en) * | 2004-07-08 | 2006-05-03 | 博山润滑设备厂 | Computer programme-controlled lubricating device |
| CN201050673Y (en) * | 2006-06-15 | 2008-04-23 | 王东升 | Valve type oil supplier |
| CN101334126A (en) * | 2008-07-30 | 2008-12-31 | 周一平 | Displacement type double valves lubrication apparatus |
| CN201246595Y (en) * | 2008-08-29 | 2009-05-27 | 北京中冶华润科技发展有限公司 | Double-point supply valve type oil feeder |
| CN201368316Y (en) * | 2009-03-09 | 2009-12-23 | 职子竖 | Lubricant distributing system |
| CN201688115U (en) * | 2010-02-25 | 2010-12-29 | 北京中冶华润科技发展有限公司 | Double-point oil supply feeder and oil feeder integration |
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