CN104500954A - Pneumatic high-pressure grease filling machine - Google Patents
Pneumatic high-pressure grease filling machine Download PDFInfo
- Publication number
- CN104500954A CN104500954A CN201410803957.XA CN201410803957A CN104500954A CN 104500954 A CN104500954 A CN 104500954A CN 201410803957 A CN201410803957 A CN 201410803957A CN 104500954 A CN104500954 A CN 104500954A
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- CN
- China
- Prior art keywords
- oil
- piston
- grease
- cylinder
- feed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004519 grease Substances 0.000 title abstract description 19
- 235000014121 butter Nutrition 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 14
- 239000000725 suspension Substances 0.000 claims description 12
- 238000000605 extraction Methods 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 239000004677 Nylon Substances 0.000 claims description 4
- 230000002708 enhancing effect Effects 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 238000013022 venting Methods 0.000 claims description 4
- 235000013339 cereals Nutrition 0.000 description 5
- 239000004576 sand Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 235000015927 pasta Nutrition 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Reciprocating Pumps (AREA)
Abstract
The invention belongs to the technical field of grease filling and relates to a pneumatic high-pressure grease filling machine comprising a barrel, a filling pump and a cylinder. The cylinder comprises an inner tube and an outer tube; the inner tube is internally provided with a piston connected with a piston rod; a vent gap is provided between the outer cylindrical face of the inner tube and the inner cylindrical face of the outer tube; an air inlet or air outlet of a reversing valve is communicated with an upper cavity of the piston through the vent gap; the air outlet or air inlet of the reversing valve is communicated with a lower cavity of the piston through an internal passage; a connecting pipe and a grease incoming casing are connected in order below a pump base of the filling pump; the inner wall of the connecting pipe above the grease incoming casing is provided with a grease incoming valve seat; a lifting rod unit is provided with a spool fitting the grease incoming valve seat; the pump base above a booster cavity formed by the pump base, the grease incoming casing, the connecting pipe, the grease incoming valve seat and the spool is provided with a grease outgoing connector. The pneumatic high-pressure grease filling machine has the advantages that the double-tube cylinder structure and the square spool are applied, failure rate of a product is low, grease filling is efficient, and the machine is suitable for grease filling of high-pressure grease filling parts.
Description
Technical field
The invention belongs to butter oiling technical field, refer in particular to pneumatic high-voltage butter Lubricators.
Background technique
See Fig. 1: Chinese patent CN 102506286B discloses one " Pneumatic high pressure greasing pump ", the piston 7 being connected with piston rod 8 is provided with in its cylinder 1, moving up and down of piston 7 drives selector valve 9 action, make from source of the gas come pressurized gas from air input joint pass into selector valve alternately distribute to the piston upper chamber air inlet of cylinder 1 time, piston cavity of resorption is vented, when distributing to the piston cavity of resorption air inlet of cylinder 1, piston upper chamber is vented, wherein: selector valve is communicated with selector valve with piston upper chamber by external conduit and joint, its deficiency is: because conduit and joint adopt external, transport, mobile, work, to deposit etc. in process and be very easy to be occurred by external force or other object collisions to loosen or crackle leaks gas, the direct normal work affecting Pneumatic high pressure greasing pump, simultaneously, because conduit is thinner, affect Throughput, in addition, in use find: be connected to the spool of spool owing to being the cylindrical-shaped structure that metallic material is made on the valve of the adapter 4 on the downside of pump housing seat and link assembly 5 bottom be connected with piston rod 8 in adapter, easily to be stuck between valve seat and spool 6 during the impurity such as sand grains if having in butter and to form pressure release gap, pressure oil in hyperbaric chamber can be let out between pressure release gap, the maximum fill cup hydraulic of Pneumatic high pressure greasing pump is caused to reduce, light then affect oiling efficiency, heavy then for needing the position of high-pressure injection can not complete oiling task, and needs waste very large time and energy are safeguarded in dismounting, repeated disassembled and assembled also can reduce the working life of Pneumatic high pressure greasing pump, cost of production improves.
Summary of the invention
The object of this invention is to provide the pneumatic high-voltage butter Lubricators of a kind of failure rate is low, long service life.
The object of the present invention is achieved like this:
Pneumatic high-voltage butter Lubricators, comprise the staving of splendid attire butter, the filling pump that staving is arranged, the drive that moves back and forth of the piston rod of the cylinder of filling pump is carried after butter pressurizes by flitch and being sent by delivery connection, if the moving back and forth of piston rod drives that selector valve alternately makes that the air supply opening of selector valve and piston upper chamber are connected and relief opening and piston cavity of resorption are connected, if air supply opening and piston cavity of resorption are connected and relief opening and piston upper chamber are connected, described cylinder comprises inner core and urceolus, the piston be connected with piston rod is provided with in inner core, airspace is provided with between the external cylindrical surface of inner core and the inner cylindrical surface of urceolus, air supply opening or the relief opening of selector valve are communicated with piston upper chamber by airspace, the relief opening of selector valve or air supply opening are communicated with piston cavity of resorption by inner passage, the downside of the pump housing seat of filling pump is connected with adapter and oil-feed sleeve pipe in turn, the nozzle inner wall of oil-feed u pper s ide is provided with oil-feed valve seat, flitch is carried through being provided with after oil-feed valve seat in the lower end of the material extraction rod assembly of the downside connection of piston rod, material extraction rod assembly on the upside of oil-feed valve seat is provided with and coordinates with oil-feed valve seat the spool opening and closing oil inlet passage, pump housing seat, oil-feed sleeve pipe, adapter, oil-feed valve seat, pump housing seat on the upside of the booster cavity that spool surrounds is provided with delivery connection.
The upper surface of above-mentioned urceolus is provided with suspension ring between two parties.
The concrete structure of above-mentioned spool is: the cylndrical surface that the upper-end surface of cylinder is provided with dish-type groove between two parties, top circumference is evenly equipped with more than one through cylinder top and the groove of upper-end surface, axis are provided with the mounting hole be arranged on described material extraction rod assembly, lower end surface mounting hole outer on to being provided with annular protrusion.
Above-mentioned groove has four, and the radial depth of groove strengthens gradually from down to up and forms skewed slot, and the upper-end inner diameter of skewed slot is greater than the internal diameter of mounting hole.
The flexible enhancing nylon material of above-mentioned spool is made.
The top of above-mentioned suspension ring is annular ring, and the bottom of annular ring is extended with screw rod joint downwards, and suspension ring are screwed onto the upper surface of cylinder between two parties.
Above-mentioned suspension ring are annular ring, and the bottom of annular ring is welded on the upper surface of cylinder between two parties.
Above-mentioned inner core and urceolus are the upper opening of split-type structural, inner core, are provided with the venting channels be communicated with airspace between the upper-end surface of inner core and the internal surface of urceolus.
Above-mentioned filling pump comprises cylinder, the oil injection component be connected with the piston rod of cylinder, pump housing seat and staving, the top of pump housing seat is connected with inner core and urceolus, bottom and is connected with staving and adapter and oil-feed sleeve pipe, oil injection component stretches in staving, the staving top of pump housing seat side is provided with pushing hands, it is outer and be connected with pressure regulator valve that air input joint stretches out urceolus, the adapter outer surface of oil-feed u pper s ide is provided with bulge loop, in adapter on the upside of bulge loop cover have can in adapter the force feed dish of movement, the adapter on the upside of force feed dish is set with by force feed spring.
The present invention gives prominence to compared to existing technology and useful technique effect is:
1, the present invention adopts double-barrel air cylinder structure, carry between cylinder inner/outer tube from selector valve to the breather line of piston upper chamber, and cylinder urceolus is securely fixed on pump housing seat, the intensity of cylinder urceolus is high, gas leakage can not be broken, the conduit and the joint that thoroughly solve original product adopt external, transport, mobile, work, the problem being very easy in process be leaked gas by external force or other object collisions such as to deposit, simultaneously, because the gap in cylinder between outer barrel is greater than the breathing area of former conduit greatly, and same top adopts open big uncork in cylinder, add the speed of ventilation, working efficiency is high, failure rate is low, long service life.
2, the flexible enhancing nylon material of spool of the present invention is made: one is its good springiness, when impurity such as having sand grains is connected between valve seat and spool, can there is resiliently deformable in spool, can play seal action well in the same old way, keeps good fill cup hydraulic; Two is that the upper surface of spool is provided with dish-type groove, top circumference is evenly equipped with four through cylndrical surface on cylinder top and the groove of upper-end surface, make pressure oil can enter booster cavity fast from four grooves and dish-type groove, accelerate oil-feed speed, improve manufacturing efficiency.
3, the present invention is applicable to the oiling at high pressure butter oiling position.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art.
Fig. 2 is sectional view of the present invention.
Fig. 3 is the sectional view of supercharging oil injection component of the present invention.
Fig. 4 is one of schematic perspective view of spool of the present invention.
Fig. 5 is the schematic perspective view two of spool of the present invention.
Fig. 6 is the A portion enlarged view of Fig. 3.
Fig. 7 is schematic perspective view of the present invention.
Embodiment
Below in conjunction with accompanying drawing, with specific embodiment, the invention will be further described, see Fig. 2-7:
Pneumatic high-voltage butter Lubricators, comprise the staving 34 of splendid attire butter, the filling pump that staving 34 is arranged, the drive that moves back and forth of the piston rod 13 of the cylinder 19 of filling pump is carried after butter pressurizes by flitch 40 and being sent by delivery connection 35, if the moving back and forth of piston rod 13 drives that selector valve 31 alternately makes that the air supply opening 16 of selector valve 31 and piston upper chamber 41 are connected and relief opening and piston cavity of resorption 42 are connected, if air supply opening 16 and piston cavity of resorption 42 are connected and relief opening and piston upper chamber 41 are connected, described cylinder 19 comprises the urceolus 20 of inner core 21 and the outer suit of inner core 21, the piston 11 be connected with piston rod 13 is provided with in inner core 21, airspace 12 is provided with between the external cylindrical surface of inner core 21 and the inner cylindrical surface of urceolus 20, the air supply opening 16 of selector valve 31 or relief opening are communicated with piston upper chamber 41 by airspace 12, relief opening or the air supply opening 16 of selector valve 31 are communicated with piston cavity of resorption 42 by inner passage 14, the downside of the pump housing seat 25 of filling pump is connected with adapter 26 and oil-feed sleeve pipe 30 in turn, adapter 26 inwall on the upside of oil-feed sleeve pipe 30 is provided with oil-feed valve seat 29, flitch 40 is carried through being provided with after oil-feed valve seat 29 in the lower end of the material extraction rod assembly 27 of the downside connection of piston rod 13, material extraction rod assembly 27 on the upside of oil-feed valve seat 29 is provided with the spool 28 coordinating with oil-feed valve seat 29 and open and close oil inlet passage, pump housing seat 25, oil-feed sleeve pipe 30, adapter 26, oil-feed valve seat 29, pump housing seat 25 on the upside of the booster cavity 43 that spool 28 surrounds is provided with delivery connection 35.
The upper surface of above-mentioned urceolus 20 is provided with suspension ring 18 between two parties.
The concrete structure of above-mentioned spool 28 is: the cylndrical surface that the upper-end surface of cylinder is provided with dish-type groove 281 between two parties, top circumference is evenly equipped with more than one through cylinder top and the groove 282 of upper-end surface, axis are provided with the mounting hole 283 be arranged on described material extraction rod assembly, lower end surface mounting hole 283 outer on to being provided with annular protrusion 284.
Above-mentioned groove 282 has four, and the radial depth of groove 282 strengthens gradually from down to up and forms skewed slot, and the upper-end inner diameter of skewed slot is greater than the internal diameter of mounting hole 283.
The flexible enhancing nylon material of above-mentioned spool 28 is made.
The top of above-mentioned suspension ring 18 is annular ring, and the bottom of annular ring is extended with screw rod joint downwards, and suspension ring 18 are screwed onto the upper surface of cylinder 19 between two parties.
Above-mentioned suspension ring 18 are annular ring, and the bottom of annular ring is welded on the upper surface of cylinder 19 between two parties.
Above-mentioned inner core 21 and urceolus 20 are the upper opening of split-type structural, inner core 21, are provided with the venting channels 10 be communicated with airspace 12 between the upper-end surface of inner core 21 and the internal surface of urceolus 20.
Above-mentioned filling pump comprises cylinder 19, the oil injection component be connected with the piston rod 13 of cylinder 19, pump housing seat 25 and staving 34, the top of pump housing seat 25 is connected with inner core 21 and urceolus 20, bottom is connected with staving 34 and takes over and oil-feed sleeve pipe, oil injection component stretches in staving 34, staving 34 top of pump housing seat 25 side is provided with pushing hands 36, it is outer and be connected with pressure regulator valve 22 that air input joint 23 stretches out urceolus 20, adapter 26 outer surface on the upside of oil-feed sleeve pipe 30 is provided with bulge loop 45, in adapter 26 on the upside of bulge loop 45, have can the force feed dish 32 of movement in adapter 26 for cover, adapter 26 on the upside of force feed dish 32 is set with by force feed spring 33, staving lower end is provided with base 37, the lower surface of base 27 is provided with the universal wheels 38 of more than three, so that mobile butter machine.
Work of the present invention: added butter in staving 34, connect source of the gas, open switch, high-pressure air can be entered by air input joint 23 after pressure regulator valve 22 pressure regulation, again after selector valve 31 distribution along the airspace 12 between the inner core 21 of cylinder 19 and urceolus 20, venting channels 10 enters piston upper chamber 41 and (supposes that now selector valve 31 distribution makes piston upper chamber 41 air inlet, the position that piston cavity of resorption 42 is vented), promotion piston 11 and piston rod 13 move down, pulling sleeve on piston rod 13 drives distribution slide block to move down while moving down with piston rod, when being displaced downwardly to lower limit position, namely achieve piston upper chamber 41 to be vented, the exchange of piston cavity of resorption 42 air inlet, reciprocation cycle successively, it is that the butter entered in grease gun by fuel-intake connection 35 is constantly pressurizeed that flitch 40 is carried in the drive that pumps of piston rod, after being pressurized to certain pressure, open grease gun switch, namely can be and need the position of oiling to carry out high-pressure injection, after oiling, close grease gun switch successively, gas source switch, meanwhile, pumping of piston rod drives the spool 28 on material extraction rod assembly 27 constantly to open and close with valve seat 29, run into when having sand grains to be stuck between spool 28 and valve seat 29, piston rod moves down rear band movable valve plug resiliently deformable and is pressed on valve seat 29 and can not cause pressure release, and when piston rod again on move time, grease can enter booster cavity 43 from groove 282 and dish-type groove 281 rapidly, drive on sand grains simultaneously and move, booster cavity is entered with grease, improve oiling efficiency, decrease the pressure loss of original structure when sand grains is stuck between spool and valve seat, along with the minimizing of staving 34 Neihuang County oil mass, force feed spring 33 promotes force feed dish 32 and moves down and contact with pasta all the time and give first pressing, guarantee that there is butter supply at oil-feed sleeve pipe 30 place.
Above-described embodiment is only preferred embodiment of the present invention, not limits the scope of the invention according to this, therefore: all equivalence changes done according to structure of the present invention, shape, principle, all should be covered by within protection scope of the present invention.
Claims (9)
1. pneumatic high-voltage butter Lubricators, comprise the staving of splendid attire butter, the filling pump that staving is arranged, the drive that moves back and forth of the piston rod of the cylinder of filling pump is carried after butter pressurizes by flitch and being sent by delivery connection, if the moving back and forth of piston rod drives that selector valve alternately makes that the air supply opening of selector valve and piston upper chamber are connected and relief opening and piston cavity of resorption are connected, if air supply opening and piston cavity of resorption are connected and relief opening and piston upper chamber are connected, it is characterized in that: described cylinder comprises inner core and urceolus, the piston be connected with piston rod is provided with in inner core, airspace is provided with between the external cylindrical surface of inner core and the inner cylindrical surface of urceolus, air supply opening or the relief opening of selector valve are communicated with piston upper chamber by airspace, the relief opening of selector valve or air supply opening are communicated with piston cavity of resorption by inner passage, the downside of the pump housing seat of filling pump is connected with adapter and oil-feed sleeve pipe in turn, the nozzle inner wall of oil-feed u pper s ide is provided with oil-feed valve seat, flitch is carried through being provided with after oil-feed valve seat in the lower end of the material extraction rod assembly of the downside connection of piston rod, material extraction rod assembly on the upside of oil-feed valve seat is provided with and coordinates with oil-feed valve seat the spool opening and closing oil inlet passage, pump housing seat, oil-feed sleeve pipe, adapter, oil-feed valve seat, pump housing seat on the upside of the booster cavity that spool surrounds is provided with delivery connection.
2. pneumatic high-voltage butter Lubricators according to claim 1, is characterized in that: the upper surface of described urceolus is provided with suspension ring between two parties.
3. pneumatic high-voltage butter Lubricators according to claim 1, is characterized in that: the concrete structure of described spool is: the cylndrical surface that the upper-end surface of cylinder is provided with dish-type groove between two parties, top circumference is evenly equipped with more than one through cylinder top and the groove of upper-end surface, axis are provided with the mounting hole be arranged on described material extraction rod assembly, lower end surface mounting hole outer on to being provided with annular protrusion.
4. pneumatic high-voltage butter Lubricators according to claim 3, is characterized in that: described groove has four, and the radial depth of groove strengthens gradually from down to up and forms skewed slot, and the upper-end inner diameter of skewed slot is greater than the internal diameter of mounting hole.
5. pneumatic high-voltage butter Lubricators according to claim 3, is characterized in that: the flexible enhancing nylon material of described spool is made.
6. the pneumatic high-voltage butter Lubricators according to any one of claim 1-5, is characterized in that: the top of described suspension ring is annular ring, and the bottom of annular ring is extended with screw rod joint downwards, and suspension ring are screwed onto the upper surface of cylinder between two parties.
7. the pneumatic high-voltage butter Lubricators according to any one of claim 1-5, is characterized in that: described suspension ring are annular ring, and the bottom of annular ring is welded on the upper surface of cylinder between two parties.
8. the pneumatic high-voltage butter Lubricators according to any one of claim 1-5, it is characterized in that: described inner core and urceolus are split-type structural, the upper opening of inner core, is provided with the venting channels be communicated with airspace between the upper-end surface of inner core and the internal surface of urceolus.
9. the pneumatic high-voltage butter Lubricators according to any one of claim 1-5, it is characterized in that: described filling pump comprises cylinder, the oil injection component be connected with the piston rod of cylinder, pump housing seat and staving, the top of pump housing seat is connected with inner core and urceolus, bottom is connected with staving and takes over and oil-feed sleeve pipe, oil injection component stretches in staving, the staving top of pump housing seat side is provided with pushing hands, it is outer and be connected with pressure regulator valve that air input joint stretches out urceolus, the adapter outer surface of oil-feed u pper s ide is provided with bulge loop, in adapter on the upside of bulge loop cover have can in adapter the force feed dish of movement, adapter on the upside of force feed dish is set with by force feed spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410803957.XA CN104500954B (en) | 2014-12-22 | 2014-12-22 | Pneumatic high-voltage butter oiling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410803957.XA CN104500954B (en) | 2014-12-22 | 2014-12-22 | Pneumatic high-voltage butter oiling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104500954A true CN104500954A (en) | 2015-04-08 |
| CN104500954B CN104500954B (en) | 2017-06-23 |
Family
ID=52942386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410803957.XA Ceased CN104500954B (en) | 2014-12-22 | 2014-12-22 | Pneumatic high-voltage butter oiling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104500954B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105314585A (en) * | 2015-12-03 | 2016-02-10 | 北京机械设备研究所 | Quantitative filling mechanism |
| CN108953960A (en) * | 2018-09-10 | 2018-12-07 | 安徽恒辉机械有限公司 | A kind of high pressure oiling equipment convenient for adjusting |
| CN109506116A (en) * | 2018-12-21 | 2019-03-22 | 南通科技职业学院 | A kind of mechanical equipment lubrication oiling equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6435843B1 (en) * | 1996-08-08 | 2002-08-20 | Nam Jong Hur | Reciprocating pump for feeding viscous liquid |
| CN2577094Y (en) * | 2002-10-18 | 2003-10-01 | 程虎 | Pneumatic self-suction type high-pressure oil ejector |
| US20110132687A1 (en) * | 2008-08-13 | 2011-06-09 | Bob Ifield Holdings Pty Ltd | Method and apparatus for purging air from automatic lubrication systems |
| CN102506286A (en) * | 2011-10-31 | 2012-06-20 | 浙江瑞丰五福气动工具有限公司 | Pneumatic high-pressure oil filling device |
| CN103104482A (en) * | 2013-01-28 | 2013-05-15 | 浙江瑞丰五福气动工具有限公司 | Pump rod structure used for plunger pump |
| CN103759116A (en) * | 2013-12-02 | 2014-04-30 | 浙江瑞丰五福气动工具有限公司 | High-pressure oiler |
| CN204358409U (en) * | 2014-12-22 | 2015-05-27 | 浙江瑞丰五福气动工具有限公司 | Pneumatic high-voltage butter Lubricators |
-
2014
- 2014-12-22 CN CN201410803957.XA patent/CN104500954B/en not_active Ceased
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6435843B1 (en) * | 1996-08-08 | 2002-08-20 | Nam Jong Hur | Reciprocating pump for feeding viscous liquid |
| CN2577094Y (en) * | 2002-10-18 | 2003-10-01 | 程虎 | Pneumatic self-suction type high-pressure oil ejector |
| US20110132687A1 (en) * | 2008-08-13 | 2011-06-09 | Bob Ifield Holdings Pty Ltd | Method and apparatus for purging air from automatic lubrication systems |
| CN102506286A (en) * | 2011-10-31 | 2012-06-20 | 浙江瑞丰五福气动工具有限公司 | Pneumatic high-pressure oil filling device |
| CN103104482A (en) * | 2013-01-28 | 2013-05-15 | 浙江瑞丰五福气动工具有限公司 | Pump rod structure used for plunger pump |
| CN103759116A (en) * | 2013-12-02 | 2014-04-30 | 浙江瑞丰五福气动工具有限公司 | High-pressure oiler |
| CN204358409U (en) * | 2014-12-22 | 2015-05-27 | 浙江瑞丰五福气动工具有限公司 | Pneumatic high-voltage butter Lubricators |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105314585A (en) * | 2015-12-03 | 2016-02-10 | 北京机械设备研究所 | Quantitative filling mechanism |
| CN108953960A (en) * | 2018-09-10 | 2018-12-07 | 安徽恒辉机械有限公司 | A kind of high pressure oiling equipment convenient for adjusting |
| CN109506116A (en) * | 2018-12-21 | 2019-03-22 | 南通科技职业学院 | A kind of mechanical equipment lubrication oiling equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104500954B (en) | 2017-06-23 |
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Decision date of declaring invalidation: 20220105 Decision number of declaring invalidation: 53422 Granted publication date: 20170623 |