CN201680132U - Double-line type lubricating device of concrete conveying equipment - Google Patents
Double-line type lubricating device of concrete conveying equipment Download PDFInfo
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- CN201680132U CN201680132U CN2010201614370U CN201020161437U CN201680132U CN 201680132 U CN201680132 U CN 201680132U CN 2010201614370 U CN2010201614370 U CN 2010201614370U CN 201020161437 U CN201020161437 U CN 201020161437U CN 201680132 U CN201680132 U CN 201680132U
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- grease
- oil cylinder
- fat
- master cylinder
- valve
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Abstract
The utility model discloses a double-line type lubricating device of concrete conveying equipment, which belongs to the technical field of lubrication of machinery equipment. The utility model adopts the technical scheme that the lubricating device comprises a hydraulic lubricating pump, a distributor and two grease conveying pipes connecting the hydraulic lubricating pump and the distributor; the distributor is provided with one group or a plurality of groups of distributed grease discharge mechanisms; and each group of distributed grease discharge mechanisms comprises one or two grease discharge channels. The utility model has the benefits that as the lubricating device is provided with two grease conveying pipes and each group of grease discharge mechanisms controls one or two grease discharge channels, even if one or more valve cores are clamped, the movement of other valve cores cannot be affected, the condition that which valve core is clamped can be found timely and visually, and trouble shooting is facilitated; the lubricating device is not so sensitive to the cleanness of grease that the fault rate of the lubricating device is lower; in addition, the lubricating device can synchronously lubricate a piston head of a main concrete conveying cylinder.
Description
Technical field
The utility model relates to the lubrication technical field of machinery equipment, particularly a kind of two-wire system lubricating fitting that is used for concrete conveying equipment.
Background technique
At present, in the using process of concrete conveying equipment,, particularly, be provided with lubricating fitting in order to guarantee lubricating of lubricated between the moving elements such as transmission and concrete transmission cylinder and piston and each and guide rod in order to guarantee lubricated between each moving element.Available coagulation soil conveying equipment adopts the mode of centralized lubrication mostly, the laddering lubrication system of general employing, pressure grease from lubricant pump output in this kind lubrication system connects distributor by a grease-conveying tube, and distributor adopts the stepwise type distributor of an inlet pipe.The shortcoming of this kind lubrication system is: the motion of next spool is opened the passage that grease leads to next spool after depending on a valve core movement, promptly has only the oil through that just can open next spool behind the last valve core movement, allow pressure grease be able to by next spool, drive next valve core movement, therefore in a single day a spool clamping stagnation does not move, just can not open the logical hydraulic fluid port of next spool, cause and to move, produce chain reaction, all spools just all can not move, thereby if one of them spool clamping stagnation of distributor has appearred, and can cause that all spools do not move, thereby make all oil outlets of distributor not fuel-displaced, have a strong impact on the normal use of lubrication system, simultaneously again can't be accurate, judge which spool timely and catching phenomenon occurred, bring very large trouble to maintenance, maintenance is inconvenient; In addition, laddering lubricating structure, also higher to the requirement of the turbidity test of lubricant medium, increase lubricated cost, simultaneous faults rate height.
In realizing process of the present utility model, the inventor finds that there is following problem at least in prior art: existing laddering lubrication system in use, if one of them spool clamping stagnation of distributor, can cause that all spools do not move, thereby make all oil outlets of distributor not fuel-displaced, have a strong impact on the normal use of lubrication system, can't judge accurately that also catching phenomenon appears in which spool simultaneously, bring very large trouble to maintenance, maintenance is inconvenient; In addition, laddering lubricating structure, also higher to the requirement of the turbidity test of lubricant medium, increase lubricated cost, simultaneous faults rate height.
The model utility content
Do not influence the troubleshootings such as clamping stagnation of other spool work, spool for a spool clamping stagnation realizing distributor convenient and reduce to the requirement of the turbidity test of lubricant medium with because the improper rate of fault that causes of turbidity test of grease, and the utility model embodiment provides a kind of two-wire system lubricating fitting of concrete conveying equipment.Described technological scheme is as follows:
A kind of two-wire system lubricating fitting of concrete conveying equipment comprises Hudrodynamic lubrication pump, distributor and is connected the grease-conveying tube of Hudrodynamic lubrication pump and distributor, wherein:
Described grease-conveying tube is provided with two, is respectively grease-conveying tube A and grease-conveying tube B;
Described Hudrodynamic lubrication pump comprises depot fat bucket and symmetrically arranged oil cylinder A and oil cylinder B, described depot fat bucket is connected with described oil cylinder B with described oil cylinder A respectively with liposuction oil duct B by liposuction oil duct A, the piston of described oil cylinder A and described oil cylinder B is by being arranged on guiding valve Synchronous Transmission between the two, and described oil cylinder A is connected with grease inlet B with the grease inlet A of described distributor respectively with described grease-conveying tube B by described grease-conveying tube A with described oil cylinder B;
Described distributor comprises that one group or multicomponent in parallel allot fat mechanism, the described fat mechanism that distributes comprises distribution selector valve in parallel and distributes proportional valve, two tops of described distribution selector valve are communicated with described grease-conveying tube A and described grease-conveying tube B respectively, the two ends of described distribution selector valve one side are communicated with the two ends of described distribution proportional valve respectively, and the opposite side of described distribution selector valve is provided with one or two strip dispensers and goes out the fat passage.
In order better to realize following technological scheme being arranged goal of the invention of the present utility model:
The outlet port of described depot fat bucket is provided with the liposuction filter screen.
In order better to realize following technological scheme being arranged goal of the invention of the present utility model:
Described grease-conveying tube A and described grease-conveying tube B are provided with filtrating equipment.
In order better to realize following technological scheme being arranged goal of the invention of the present utility model:
Also be connected with master cylinder on described oil cylinder A and the described oil cylinder B and go out fat mechanism, described master cylinder goes out fat mechanism and comprises master cylinder selector valve and master cylinder proportional valve in parallel, two tops of described master cylinder selector valve are communicated with described oil cylinder A and described oil cylinder B respectively, the two ends of described master cylinder selector valve one side are communicated with the two ends of described master cylinder proportional valve respectively, and the opposite side of described master cylinder selector valve is provided with one or two master cylinders and goes out the fat passage.
In order better to realize following technological scheme being arranged goal of the invention of the present utility model:
The described fat mechanism that distributes has been arranged in parallel 2～10 groups.
In order better to realize following technological scheme being arranged goal of the invention of the present utility model:
The exit position of described oil cylinder A and described oil cylinder B is respectively arranged with bleed valve.
The beneficial effect of the technological scheme that the utility model embodiment provides is: embodiment of the present utility model is by being provided with two grease-conveying tube roads and going out one of fat mechanism controls or two modes that go out the fat passage by every group, two-wire system is for fat, two-wire system drives, every group of reciprocating power of spool that goes out fat mechanism is directed to two grease-conveying tubes of Hudrodynamic lubrication pump, open the mode that oil circuit provides the driving of next spool and be different from stepwise type distributor dependence self spool commutation, a spool or several spool clamping stagnation, all can not influence the motion of other spools, be that some spools or several spool are by clamping stagnation, only influence the fuel feeding of corresponding lubricating point, and do not influence the lasting fuel feeding of other lubricating points, effectively overcome spool clamping stagnation in the prior art, the drawback that other spools also can't be worked simultaneously, simultaneously can be timely, accurately, find that intuitively catching phenomenon appears in which spool, the maintenance of faults such as clamping stagnation is very convenient; The motion of different spools is only relevant with the grease in the grease-conveying tube road, there is not association each other, turbidity test to lubricant medium are insensitive, lubricant medium promptly can be selected oil, also can select fat, lubricant medium accommodation is wide, the rate of fault that effectively reduces lubricated cost and cause owing to the turbidity test of grease; The Hudrodynamic lubrication pump can also have the master cylinder that connects the transmission and concrete transmission master cylinder and go out the fat passage, can carry out lubricated synchronously to the piston head of master cylinder.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment's technological scheme, to do one to the accompanying drawing that uses among the embodiment below introduces simply, apparently, below listed accompanying drawing only be embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the fundamental diagram that the utility model embodiment provides.
In the accompanying drawing, the component list of each label representative is as follows:
1, Hudrodynamic lubrication pump; 2, depot fat bucket; 3, liposuction filter screen; 4, liposuction oil duct A; 5, liposuction oil duct B; 6, oil cylinder B; 7, guiding valve; 8, grease-conveying tube B; 9, filtrating equipment; 10, grease-conveying tube A; 11, grease inlet B; 12, distribute the fat channel B; 13, distribute selector valve; 14, distribute proportional valve; 15, distributor; 16, distribute fat passage A; 17, grease inlet A; 18, master cylinder goes out the fat channel B; 19, master cylinder goes out fat passage A; 20, master cylinder selector valve; 21, master cylinder proportional valve; 22, bleed valve; 23, oil cylinder A.
Embodiment
For making the purpose of this utility model, technological scheme and advantage clearer, the utility model mode of execution is described in further detail below in conjunction with accompanying drawing.
Embodiment:
A kind of two-wire system lubricating fitting of concrete conveying equipment comprises Hudrodynamic lubrication pump 1, distributor 15 and is connected Hudrodynamic lubrication pump 4 and the grease-conveying tube of distributor 15, wherein:
Grease-conveying tube is provided with two, is respectively grease-conveying tube A10 and grease-conveying tube B8;
Hudrodynamic lubrication pump 1 comprises depot fat bucket 2 and symmetrically arranged oil cylinder A23 and oil cylinder B6, depot fat bucket 2 is connected with oil cylinder B6 with oil cylinder A23 respectively with liposuction oil duct B5 by liposuction oil duct A4, the piston of oil cylinder A23 and oil cylinder B6 is connected by the guiding valve 7 that is arranged between the two, by the synchronous slip transmission of guiding valve 7 realization oil cylinder A23 and oil cylinder B6, oil cylinder A23 is connected with grease inlet B11 with the grease inlet A17 of distributor 15 respectively with grease-conveying tube B6 by grease-conveying tube A10 with oil cylinder B6.
Distributor 15 can be provided with one group or 2～10 in parallel components as required and allot fat mechanism, distributing fat mechanism comprises distribution selector valve in parallel 13 and distributes proportional valve 14, distribute two tops of selector valve 13 to be communicated with grease-conveying tube A10 and grease-conveying tube B8 respectively, distribute the two ends of selector valve 13 1 sides to be communicated with the two ends of distributing proportional valve 14 respectively, the two ends of the opposite side of distribution selector valve 13 are provided with and distribute fat passage A16 and distribute fat channel B 12.
The outlet port of depot fat bucket 2 is provided with liposuction filter screen 3.
Grease-conveying tube A10 and grease-conveying tube B8 are provided with filtrating equipment 9.
Also be connected with master cylinder on oil cylinder A23 and the oil cylinder B6 and go out fat mechanism, master cylinder goes out fat mechanism and comprises master cylinder selector valve 20 and master cylinder proportional valve 21 in parallel, two tops of master cylinder selector valve 20 are communicated with oil cylinder A23 and oil cylinder B6 respectively, the two ends of master cylinder selector valve 20 1 sides are communicated with the two ends of master cylinder proportional valve 21 respectively, and the two ends of the opposite side of master cylinder selector valve 20 are provided with that master cylinder goes out fat passage A19 and master cylinder goes out fat channel B 18.
The exit position of described oil cylinder A and described oil cylinder B is respectively arranged with bleed valve.
Be connected with master cylinder on oil cylinder A23 and the oil cylinder B6 and go out fat mechanism, can realize concrete pump master cylinder head is realized lubricating synchronously, promptly lubricant pump can guarantee that lubricant grease can inject at scheduled time point when two concrete master cylinders move; Can realize again simultaneously providing the alternately pressure grease of commutation of twice to distributor 15.
The outlet port of depot fat bucket 2 is provided with liposuction filter screen 3, can carry out coarse filtration to the lubricating grease that comes out from depot fat bucket 2; Grease-conveying tube A10 and grease-conveying tube B8 are provided with filtrating equipment 9, can carry out meticulousr filtration to the lubricating grease that enters distributor 15, effectively improve the turbidity test that enter distributor 15 and arrive the lubricating grease of lubricating point by distributor 15, improve lubrication effect, reduce the fault that produces because of lubricated.
The exit position of oil cylinder A23 and oil cylinder B5 is respectively arranged with bleed valve 22, when new pump use, pump maintenance, oil drum cleaning, oil addition or grease are used up pump suction sky, allow air enter in Hudrodynamic lubrication pump 1 mechanism easily, cause Hudrodynamic lubrication pump 1 can't the pumping grease or the grease pressure of pumping not enough, at this moment open two bleed valves 22, air drained can recover normal, maintenance is fast convenient, effectively improves the working efficiency and the stability of system.
Adopt hydraulically powered two-wire system Hudrodynamic lubrication pump 1 in the two-wire system lubricating fitting of concrete conveying equipment of the present utility model, Hudrodynamic lubrication pump 1 is because its working principle, itself has commutation function to the grease-conveying tube A10 of input distributor 15 and two pipeline pressure greases of grease-conveying tube B8, does not need to be provided with independently any type of changement.
Among the embodiment of the present utility model, every column of dispensers goes out fat mechanism and is provided with two strip dispensers and goes out the fat passage, promptly distributes the two ends of the opposite side of selector valve 13 to be provided with and distributes fat passage A16 and distribute fat channel B 12; In addition, can also be on all or part of distribution selector valve 13, only be provided with one be connected to simultaneously distribute selector valve 13 two ends go out the fat passage, when only being provided with one when going out the fat passage, distribute fat mechanism accordingly and can carry out continual lubricated unique lubricating point;
Equally, among the embodiment of the present utility model, every group of master cylinder goes out fat mechanism and also is provided with two master cylinders and goes out the fat passage, be that the two ends of the opposite side of master cylinder selector valve 20 are provided with that master cylinder goes out fat passage A19 and master cylinder goes out fat channel B 18, can be simultaneously provide lubricated to two master cylinders of concrete conveying equipment, can make its frequency and concrete master cylinder synchronized movement of injecting lubricant grease, thereby the lubricating grease that guarantees each injection is annotated just in time on the concrete master cylinder piston head that will lubricate; When Run Hua master cylinder has only one if desired, two passes is merged into one get final product.
In conjunction with the accompanying drawings, illustrate that working principle of the present utility model is as follows:
First circulation: oil cylinder A23 epicoele enters pressure oil, the piston of oil cylinder A23 moves downward, the piston that promotes guiding valve 7 and oil cylinder B6 moves downward, the epicoele of oil cylinder B6 forms vacuum, when arriving liposuction oil duct B5 with position that the epicoele of oil cylinder B6 is communicated with, the interior pull of vacuum of atmospheric pressure and oil cylinder B6 forces depot fat bucket 2 interior lubricating grease to enter oil cylinder B6 by liposuction filter screen 3 and liposuction oil duct B5;
Simultaneously, a part of passing hole channel of the lubricating grease in the oil cylinder A23 cavity of resorption is pressed into the epicoele of master cylinder selector valve 20, the spool of master cylinder selector valve 20 moves downward under the effect of pressure grease, when the epicoele of master cylinder selector valve 20 is communicated with the epicoele of master cylinder proportional valve 21, the spool that pressure grease presses master cylinder proportional valve 21 moves downward, the lower channel of opening when the spool of the lubricating grease that makes master cylinder proportional valve 21 cavity of resorptions by master cylinder selector valve 20 moves downward goes out fat channel B 18 from master cylinder and discharges, enter in the corresponding concrete pump master cylinder (as concrete pump master cylinder), piston is lubricated;
In addition, the part of the lubricating grease in the oil cylinder A23 cavity of resorption is pressed into the cavity of resorption that distributes selector valve 13 by grease-conveying tube B8 simultaneously, distribute the spool of selector valve 13 under the effect of pressure grease, to move upward, when the cavity of resorption that distributes selector valve 13 is communicated with the cavity of resorption that distributes proportional valve 14, pressure grease presses and distributes the spool of proportional valve 14 to move upward, the upper channel of opening when the lubricating grease that distributes proportional valve 14 epicoeles is moved upward by the spool that distributes selector valve 13 is discharged from distributing fat passage A16, enters corresponding lubricating point through piping then.
Second circulation: oil cylinder B6 cavity of resorption enters pressure oil, the piston of oil cylinder B6 moves upward, the piston that promotes guiding valve 7 and oil cylinder A23 moves upward, the cavity of resorption of oil cylinder A23 forms vacuum, when arriving liposuction oil duct A4 with position that the cavity of resorption of oil cylinder A23 is communicated with, the interior pull of vacuum of atmospheric pressure and oil cylinder A23 forces depot fat bucket 2 interior lubricating grease to enter oil cylinder A23 by liposuction filter screen 3 and liposuction oil duct A4;
Simultaneously, a wind passing hole channel of the lubricating grease in the oil cylinder B6 epicoele is pressed into the cavity of resorption of master cylinder selector valve 20, the spool of master cylinder selector valve 20 moves upward under the effect of pressure grease, when the cavity of resorption of master cylinder selector valve 20 is communicated with the cavity of resorption of master cylinder proportional valve 21, the spool that pressure grease presses master cylinder proportional valve 21 moves upward, the upper channel of opening when the spool of the lubricating grease that makes master cylinder proportional valve 21 epicoeles by master cylinder selector valve 20 moves upward goes out fat passage A19 from master cylinder and discharges, enter in the corresponding concrete pump master cylinder (as concrete pump master cylinder), piston is lubricated;
In addition, lubricating grease part in the oil cylinder B6 cavity of resorption is pressed into the epicoele that distributes selector valve 13 by grease-conveying tube A10 simultaneously, distribute the spool of selector valve 13 under the effect of pressure grease, to move downward, when the epicoele that distributes selector valve 13 is communicated with the epicoele that distributes proportional valve 14, pressure grease presses and distributes the spool of proportional valve 14 to move downward, the lower channel of opening when the lubricating grease that distributes proportional valve 14 cavity of resorptions is moved downward by the spool that distributes selector valve 13 is discharged from distributing fat channel B 12, enters corresponding lubricating point through piping then.
First circulation and second cycle alternation carry out, thereby realize the lubricated at regular time and quantity of each lubricating point and concrete pump master cylinder, guarantee the good operation of concrete conveying equipment.
The pressure oil of the driving oil cylinder A23 among the utility model embodiment and oil cylinder B6 motion is provided by the oil hydraulic pump on the concrete conveying equipment to get final product, and does not need additionally to provide oil hydraulic pump.
The above only is preferred embodiment of the present utility model, and is in order to restriction the utility model, not all within spirit of the present utility model and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. the two-wire system lubricating fitting of a concrete conveying equipment comprises Hudrodynamic lubrication pump, distributor and is connected the grease-conveying tube of Hudrodynamic lubrication pump and distributor, it is characterized in that:
Described grease-conveying tube is provided with two, is respectively grease-conveying tube A and grease-conveying tube B;
Described Hudrodynamic lubrication pump comprises depot fat bucket and symmetrically arranged oil cylinder A and oil cylinder B, described depot fat bucket is connected with described oil cylinder B with described oil cylinder A respectively with liposuction oil duct B by liposuction oil duct A, the piston of described oil cylinder A and described oil cylinder B is by being arranged on guiding valve Synchronous Transmission between the two, and described oil cylinder A is connected with grease inlet B with the grease inlet A of described distributor respectively with described grease-conveying tube B by described grease-conveying tube A with described oil cylinder B;
Described distributor comprises that one group or multicomponent in parallel allot fat mechanism, the described fat mechanism that distributes comprises distribution selector valve in parallel and distributes proportional valve, two tops of described distribution selector valve are communicated with described grease-conveying tube A and described grease-conveying tube B respectively, the two ends of described distribution selector valve one side are communicated with the two ends of described distribution proportional valve respectively, and the opposite side of described distribution selector valve is provided with one or two strip dispensers and goes out the fat passage.
2. the two-wire system lubricating fitting of concrete conveying equipment according to claim 1 is characterized in that:, the outlet port of described depot fat bucket is provided with the liposuction filter screen.
3. the two-wire system lubricating fitting of concrete conveying equipment according to claim 1, it is characterized in that: described grease-conveying tube A and described grease-conveying tube B are provided with filtrating equipment.
4. according to the two-wire system lubricating fitting of claim 1 or 2 or 3 arbitrary described concrete conveying equipments, it is characterized in that: also be connected with master cylinder on described oil cylinder A and the described oil cylinder B and go out fat mechanism, described master cylinder goes out fat mechanism and comprises master cylinder selector valve and master cylinder proportional valve in parallel, two tops of described master cylinder selector valve are communicated with described oil cylinder A and described oil cylinder B respectively, the two ends of described master cylinder selector valve one side are communicated with the two ends of described master cylinder proportional valve respectively, and the opposite side of described master cylinder selector valve is provided with one or two master cylinders and goes out the fat passage.
5. according to the two-wire system lubricating fitting of claim 1 or 2 or 3 arbitrary described concrete conveying equipments, it is characterized in that: the exit position of described oil cylinder A and described oil cylinder B is respectively arranged with bleed valve.
6. according to the two-wire system lubricating fitting of claim 1 or 2 or 3 arbitrary described concrete conveying equipments, it is characterized in that: the described fat mechanism that distributes has been arranged in parallel 2～10 groups.
7. the two-wire system lubricating fitting of concrete conveying equipment according to claim 4, it is characterized in that: the exit position of described oil cylinder A and described oil cylinder B is respectively arranged with bleed valve.
8. the two-wire system lubricating fitting of concrete conveying equipment according to claim 4, it is characterized in that: the described fat mechanism that distributes has been arranged in parallel 2～10 groups.
9. the two-wire system lubricating fitting of concrete conveying equipment according to claim 5, it is characterized in that: the described fat mechanism that distributes has been arranged in parallel 2～10 groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201614370U CN201680132U (en) | 2010-04-14 | 2010-04-14 | Double-line type lubricating device of concrete conveying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201614370U CN201680132U (en) | 2010-04-14 | 2010-04-14 | Double-line type lubricating device of concrete conveying equipment |
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| Publication Number | Publication Date |
|---|---|
| CN201680132U true CN201680132U (en) | 2010-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201614370U Expired - Fee Related CN201680132U (en) | 2010-04-14 | 2010-04-14 | Double-line type lubricating device of concrete conveying equipment |
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| CN (1) | CN201680132U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913741A (en) * | 2012-10-26 | 2013-02-06 | 江苏智源科技创业园有限公司 | Double-line oil feeder |
| CN102913448A (en) * | 2012-10-29 | 2013-02-06 | 三一重工股份有限公司 | Anti-blocking method, device and pumping machine for progressive distributor |
| CN102943951A (en) * | 2012-11-27 | 2013-02-27 | 中联重科股份有限公司 | Lubricating device and concrete mechanical equipment including lubricating device |
| CN103775810A (en) * | 2013-08-08 | 2014-05-07 | 温州市维东润滑设备制造有限公司 | Hydraulic supercharging lubricant pump |
| CN105443373A (en) * | 2014-08-21 | 2016-03-30 | 中联重科股份有限公司 | Piston lubricating system for concrete cylinder, control method and device thereof, and pumping equipment |
| CN114542933A (en) * | 2022-02-18 | 2022-05-27 | 郑州奥特科技有限公司 | Lubricating method for lubricating grease discharge capacity on mechanical equipment capable of being independently adjusted in partition mode |
-
2010
- 2010-04-14 CN CN2010201614370U patent/CN201680132U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913741A (en) * | 2012-10-26 | 2013-02-06 | 江苏智源科技创业园有限公司 | Double-line oil feeder |
| CN102913448A (en) * | 2012-10-29 | 2013-02-06 | 三一重工股份有限公司 | Anti-blocking method, device and pumping machine for progressive distributor |
| CN102913448B (en) * | 2012-10-29 | 2015-11-25 | 三一汽车制造有限公司 | A kind of stepwise type distributor anti-blocking method, device and pumping machine |
| CN102943951A (en) * | 2012-11-27 | 2013-02-27 | 中联重科股份有限公司 | Lubricating device and concrete mechanical equipment including lubricating device |
| CN102943951B (en) * | 2012-11-27 | 2014-12-24 | 中联重科股份有限公司 | Lubricating device and concrete mechanical equipment including lubricating device |
| CN103775810A (en) * | 2013-08-08 | 2014-05-07 | 温州市维东润滑设备制造有限公司 | Hydraulic supercharging lubricant pump |
| CN105443373A (en) * | 2014-08-21 | 2016-03-30 | 中联重科股份有限公司 | Piston lubricating system for concrete cylinder, control method and device thereof, and pumping equipment |
| CN114542933A (en) * | 2022-02-18 | 2022-05-27 | 郑州奥特科技有限公司 | Lubricating method for lubricating grease discharge capacity on mechanical equipment capable of being independently adjusted in partition mode |
| CN114542933B (en) * | 2022-02-18 | 2023-10-31 | 郑州奥特科技有限公司 | Lubricating method capable of independently adjusting lubricating grease displacement in partition on mechanical equipment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20190414 |
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| CF01 | Termination of patent right due to non-payment of annual fee |