WO2006022180A1 - ミスト生成装置 - Google Patents
ミスト生成装置 Download PDFInfo
- Publication number
- WO2006022180A1 WO2006022180A1 PCT/JP2005/015036 JP2005015036W WO2006022180A1 WO 2006022180 A1 WO2006022180 A1 WO 2006022180A1 JP 2005015036 W JP2005015036 W JP 2005015036W WO 2006022180 A1 WO2006022180 A1 WO 2006022180A1
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- WO
- WIPO (PCT)
- Prior art keywords
- mist
- injector
- container
- pressure
- liquid
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
- B23Q11/1038—Arrangements for cooling or lubricating tools or work using cutting liquids with special characteristics, e.g. flow rate, quality
- B23Q11/1046—Arrangements for cooling or lubricating tools or work using cutting liquids with special characteristics, e.g. flow rate, quality using a minimal quantity of lubricant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Definitions
- the present invention relates to a mist generating apparatus that supplies gas and liquid to generate mist in a container, transports the generated mist through a transport channel, and sprays the mist toward an object.
- Etc. relates to a mist generating device used to generate a mist for cooling and lubricating a tool or a workpiece of a machine tool, etc. Background art
- Mist liquid fine particles contained in gas
- mist is widely used in various technical fields such as application to inhalers in the field of medicine, power in the field of daily life [] dampeners, cleaning or coating agents, etc.
- Mist is also used to cool and lubricate machine tools and workpieces.
- machining high friction is exerted between the tool and the workpiece during machining, and this friction generates a large amount of heat. Therefore, it is necessary to reduce the friction between these components with the aid of a cooling lubricant (cooling lubricant), whereby these components are simultaneously cooled.
- a cooling lubricant cooling lubricant
- MQ L minimum amount lubrication
- This type of mist generation device generally includes an injector that receives supply of gas and liquid (cooling lubricant) to generate mist in a container, and a conduit that leads the mist out of the container.
- the mist is sprayed from an oil hole of a nozzle or a tool to a processing point through a mist transfer passage connected to the conduit.
- Fig. 7 shows a so-called system curve in which the characteristic curve of the mist generating device described above and the resistance curve of the transfer flow path are described together, and the mist generating device is operated under appropriate operating conditions. An example of the case is shown.
- the solid curve is the gas supply pressure to the injector?
- the characteristic curve of the mist generating device is shown, which shows the relationship between the discharge air volume of the mist generation device (mistake air volume) and the pressure inside the container (discharge pressure).
- the dashed curve shows the relationship between air flow and pressure loss in the transfer channel, and is a resistance curve combining the resistance of the channel and the oil hole of the nozzle or tool R! Indicates
- the operating point of the mist generating device is the point of intersection of the characteristic curve and the resistance curve (the operating point, and the pressure in the container of the mist generating device (discharge pressure) is P 2 .
- the amount of mist air flow and the amount of mist air flow injected into the container from the injector are both.
- the machine tool injects the mist through the oil hole of the tool to the processing point and automatically changes the tool for each processing. It has become. For this reason, the diameter of the oil hole of the tool also varies with the size of the tool, and the discharge pressure and the injection speed of the mist sprayed from the oil hole of the tool to the processing point change.
- Fig. 8 shows that when the mist generating device is operated by replacing the tool with a large oil hole diameter from the proper operating condition shown in Fig. 7, that is, the operating condition where the resistance (resistance curve R 2 ) of the transfer channel is appropriate. It shows the case where it became smaller.
- the gas supply pressure P i to the injector and the resistance curve are identical to those in FIG.
- the mist generation device is operated at the operating point C 2
- the pressure in the container (discharge pressure) of the mist generation device is P 3
- the mist air volume discharged from the mist generation device and the injection from the injector into the container.
- the amount of mist air flow is the same as in the case of FIG.
- discharge pressure P 3 of the mist to be injected into the processing point from the oil hole of the tool it is smaller than that discharged in the pressure P 2 in the proper operating point I will.
- the injection speed of the mist injected from the oil hole of the tool to the processing point becomes slow, and the problem arises that the adhesion of the mist to the processing point and the ability to remove chips and the like decrease.
- the mist discharge amount may be insufficient for the tool size, which may cause machining defects.
- Fig. 9 shows the case where the mist generating device is operated after replacing the tool with a smaller oil hole diameter from the proper operating condition shown in Fig. 7, that is, the resistance (resistance curve R 3 ) of the transport flow path is appropriate. It shows the case where it has increased from the correct operating condition.
- the gas supply pressure P i to the injector and the resistance curve are identical to those in FIG.
- the mist generation device is operated at operating point C 3
- the pressure in the container (discharge pressure) of the mist generation device is P 4
- the mist air volume discharged from the mist generation device is P 4
- the mist air flow rate is Q 2 for both.
- the pressure in the container P 4 becomes too high relative to the gas supply pressure P x to the injector (the ratio P of the pressure in the container P 4 to the gas supply pressure P! 4) ZP i becomes too large), and sufficient gas flow rate necessary for mist generation can not be obtained inside the injector. Therefore, thin inadequate mist concentrations in the injector only be generated, also, mist air volume Q 2 to which is injected into the container from the injector also a little compared to our Keru mist air volume during proper operation connexion I will.
- the amount of mist (liquid fine particles) discharged from the mist generation device (the product of the amount of mist air volume and concentration injected from the injector into the container) becomes very small, and it is used for cooling or lubrication of the tool.
- the problem is that the cooling capacity and lubrication capacity are extremely reduced.
- the present invention has been made in view of the above-mentioned circumstances, and the mist discharge pressure is stably maintained corresponding to the change of the oil hole diameter accompanying the tool change, and the mist discharge is adapted to a large-sized tool. It is an object of the present invention to provide a mist generating device capable of processing a minimum amount of lubrication (MQ L), such as a small diameter drill, capable of increasing the amount of work.
- MQ L minimum amount of lubrication
- an injector which receives supply of a gas from a gas supply source and a liquid in a container to generate a mist and jets the mist into the container; And an auxiliary mist generating unit provided downstream of the injector.
- the auxiliary mist generation unit additionally increases the amount of mist as necessary, so that the risk of processing defects due to a miss occurs with a tool or the like having a large size. Can be avoided.
- the auxiliary mist generating unit is provided in a mist transfer path connected to the conduit to transfer the mist.
- auxiliary mist is emitted to the existing mist generating device.
- Raw parts can be added as needed, which is economical.
- the auxiliary mist generation unit preferably comprises a coupler having a jet port for spraying the carrier gas Z liquid mixed fluid sent from the carrier gas / liquid mixing unit into the mist transport flow channel.
- the carrier gas / liquid mixing unit is a constant ratio reducing valve or a differential pressure reducing valve for reducing the carrier gas to a pressure or a constant pressure relative to the gas supply pressure to the injector, and the pressure reducing carrier gas. It is preferred to have a positive displacement pump for injecting liquid into the flow.
- the carrier gas to the auxiliary mist generation unit can be supplied via the ratio reducing valve or the difference reducing valve along with the change of the gas supply pressure to the injector.
- the pressure will automatically reach the correct pressure.
- complicated adjustment of the carrier gas supply pressure is not necessary, and the usability of the mist generation device can be improved.
- the ratio between the carrier gas supply pressure to the auxiliary mist generation unit and the gas supply pressure to the injector is slightly set depending on the characteristics of the mist generation device, but is preferably set to about 0.6 to 0.8.
- the differential pressure between the carrier gas supply pressure to the auxiliary mist generation unit and the gas supply pressure to the injector varies somewhat depending on the characteristics of the mist generation device, but it is set to about 0.5 to 0.55 MP a It is preferable to do.
- the auxiliary mist generation unit is branched and transferred from the gas supply path to the injector, and has a constant ratio or difference with respect to the gas supply pressure to the injector via a ratio reduction valve or a difference reduction valve. It is preferable that the carrier gas decompressed to the pressure and the liquid in the container be supplied and the auxiliary mist be sprayed into the container. With such a configuration, the pressure of the carrier gas to the auxiliary mist generation unit is automatically made appropriate via the ratio reducing valve or the difference reducing valve according to the change of the gas supply pressure to the injector. The pressure is As a result, complicated adjustment of the carrier gas supply pressure is not necessary, and the usability of the mist generation device can be improved.
- the ratio of the carrier gas supply pressure to the auxiliary mist generation unit to the gas supply pressure to the injector is slightly set depending on the characteristics of the mist generation device, but is preferably set to about 0.6 to 0.8.
- the differential pressure between the carrier gas supply pressure to the auxiliary mist generation unit and the gas supply pressure to the injector is somewhat different depending on the characteristics of the mist generation device, but it should be about 0.5 to 0.55 MP a. It is preferable to set.
- the auxiliary mist generation unit is connected to an auxiliary liquid supply path that branches from a liquid supply path that supplies the liquid in the container to the injector, and sucks the liquid in the container by suction.
- a valve device or a check valve is provided inside or at the outlet side of the auxiliary liquid supply passage.
- the supply amount of the liquid to the injector and the auxiliary mist generation unit can be adjusted in conjunction with one another, and the mist generation device can be manufactured inexpensively. Further, when the pressure in the container becomes higher than the carrier gas supply pressure to the auxiliary mist generation unit, the valve device installed inside the auxiliary liquid supply passage or the check valve set on the outlet side is closed. As a result, it is possible to shut off the back pressure from the auxiliary mist generation unit to the liquid supply path.
- Another mist generating apparatus receives a supply of gas from a gas supply source and a liquid in a container to generate a mist and jets the mist into the container, and the mist in the container is discharged from the container. And a relief flow path provided downstream of the injector, and a relief flow path provided downstream of the injector, wherein a pressure of a fixed ratio or a differential pressure with respect to the gas supply pressure to the injector is provided.
- the constant ratio relief valve or the constant difference relief valve installed in the relief passage provided on the downstream side of the injector can be used.
- Pressure inside the container (discharge pressure) Force Automatically becomes an appropriate pressure, and this generates an effective mist with high concentration, and performs minimum amount lubrication (MQ L) processing such as small diameter drills well.
- MQ L minimum amount lubrication
- the ratio between the working pressure of the fixed relief valve and the gas supply pressure to the injector is somewhat different depending on the characteristics of the mist generating device, it is preferable to set it to about 0.6 to 0.8.
- the differential pressure between the working pressure of the differential relief valve and the gas supply pressure to the injector should be set to about 0.1 to 0.55 MP a, although it varies somewhat depending on the characteristics of the mist generating device. Is preferred.
- Still another mist generating apparatus is an injector which receives supply of a gas from a gas supply source and a liquid in a container to generate a mist and jets the mist into the container, and the container containing the mist in the container.
- a conduit leading out from the housing, and the injector comprises a lava / renozle provided with a liquid introduction throat immediately after the throat.
- the injector by forming the injector with a nozzle (a diverging nozzle) provided with a liquid introduction port immediately after the throat (the narrowest portion of the nozzle), gas for mist generation inside the injector (Laval nozzle) can be obtained.
- the flow can be a supersonic flow, and the liquid supplied to the inside of the injector can be divided at a supersonic velocity and atomized to generate a high concentration mist with a fine particle diameter.
- a foam plate composed of open cells may be disposed at a position facing the outlet of the injector.
- the raw material is absorbed by the foam plate and condensed to fall into the container. Therefore, a mist is generated in which the particle size distribution is concentrated to a very small diameter at a high density.
- the foam plate is preferably a flat sponge having a three-dimensional network structure utilizing only the bone portion of the foam (the membrane is removed).
- Still another mist generating apparatus is an injector which receives supply of a gas from a gas supply source and a liquid in a container to generate a mist and jets the mist into the container, and the container containing the mist in the container.
- mist generating device it is possible to confirm that the liquid is absorbed and introduced into the injector by detecting the floating of the float of the flow meter with a sensor. Furthermore, the fact that the liquid is sucked into the injector means that the gas for mist generation flows inside the injector, and thus, indirectly, the injector can operate normally. It is possible to remotely monitor that mist is generated and discharged to the outside of the mist generation device, and the reliability of the mist generation device can be improved.
- the mist generating apparatus of the present invention by providing the auxiliary mist generating portion on the downstream side of the injector, it is automatically appropriate for tools such as drills having a large oil hole diameter (small flow path resistance). It is possible to operate at a low discharge pressure, which improves usability and can increase the amount of mist if necessary, so that the minimum amount of lubrication is required for large-sized tools.
- MQ L Expand the scope of processing.
- a pressure relief valve or a pressure difference relief valve is provided in the relief flow channel branched from the mist transfer flow channel, and the pressure (discharge pressure) in the container is automatically made appropriate.
- the pressure discharge pressure
- the tool is automatically operated at an appropriate discharge pressure for tools such as drills with a small oil hole diameter (large flow path resistance), and high-density mist is generated. can do.
- a sufficient mist discharge amount can be obtained even for a tool having a large flow resistance such as a small diameter drill, and the application range of minimum amount lubrication (M Q L) processing to a small diameter drill etc. is expanded.
- FIG. 1 is a view showing a schematic configuration of a mist generating device according to a first embodiment of the present invention.
- Fig. 2 shows the mist generation device shown in Fig. It is a figure which shows an example of the system curve at the time of using a critical drill.
- FIG. 3 is a view showing a schematic configuration of a mist generating device according to a second embodiment of the present invention.
- FIG. 4 is a view showing an example of a system curve in the case where a small oil drill diameter is used as a tool in the mist generating device shown in FIG.
- FIG. 5 is a view showing a schematic configuration of a mist generating device according to a third embodiment of the present invention.
- FIG. 6 is a diagram showing a schematic configuration of a mist generating apparatus according to a fourth embodiment of this invention.
- FIG. 7 is a diagram showing a system curve when the mist generation device is operated in a normal operation state.
- FIG. 8 is a diagram showing a system curve in the case where the mist generating device is operated in a state in which the resistance of the transfer passage is reduced.
- FIG. 9 is a diagram showing a system curve in the case where the mist generating device is operated with the resistance of the transfer passage increased.
- FIG. 1 is a view showing a schematic configuration of a mist generating apparatus according to a first embodiment of the present invention.
- the mist generating apparatus has a container 1 which accommodates a liquid supply source (oil source) 2 for supplying a liquid cooling lubricant such as oil at its lower part.
- the container 1 is configured as a pressure container covered by a cover 1.
- the injector 1 1 In the space 4 in the container 1 formed above the oil source 2, the injector 1 1 is fixed to the cover 3 and is supplied with pressurized air (gas) and oil (liquid). The mist injected from the injector 11 is retained in the space 4.
- a Laval Noznore Sudehiro nozzle
- the injector 11 the supply of pressurized air (gas) to the injector 11 is performed via the gas supply passage 5.
- the pressurized air passes through the throat 12 of the injector 11
- the pressure becomes minimum, and then the pressure rises rapidly, and then gradually rises to the outlet 13 of the injector 11.
- suction force is generated at the liquid inlet 14 provided immediately after the throat 12 of the injector 1 1, and this suction force causes the oil to flow from the oil source 2 through the liquid supply passage 6 to the injector 1. It is sucked into 1).
- the injector 11 As described above, by forming the injector 11 with a Laval zonole (a divergent nozzle) in which the liquid inlet 14 is provided immediately after the throat 12, mist generation in the injector (Laval nozzle) 1 1 can be achieved.
- the gas flow of the supersonic flow and the liquid flow into the interior of the injector 1 1 1 The liquid supplied from 4 can be divided at a supersonic velocity and atomized to generate a high concentration mist with a fine particle diameter.
- the injector 11 mixes the pressurized air and the oil in the expansion pipe 15 and jets it as a mist.
- a foam plate consisting of a flat sponge consisting of open cells of a three-dimensional network structure utilizing only the bone portion of the foam (the membrane is removed) 1 Six are arranged.
- the foam plate 16 is suspended and held from the cover 3 by a suspension port 17.
- the mist having a fine particle diameter passes through or deflects in the foam plate 16, flows and floats in the container 1, and the particle diameter is relatively large.
- the water is absorbed by the foam plate 16 and condenses and drops into the container 1.
- mists are generated in which the particle size distribution is concentrated at a very small diameter and with high density.
- the cover 3 is provided with a conduit 7 for discharging the mist in the space 4 from the container 1 and a pressure gauge 60 for checking the pressure in the container (discharge pressure).
- a float type flow meter 8 is provided in the liquid supply passage 6 extending from the oil source 2 to the injector 1 1.
- the flow meter 8 is provided with a flow rate indicator 8 a and a backflow prevention mechanism 8 b.
- the fluid supply passage 6 is provided with a variable throttle valve 9 for adjusting the flow rate of oil supplied to the injector 1 1 and a sensor 10 for detecting the floating of the float 8 c of the flow meter 8. There is.
- the oil in the liquid supply passage 6 is prevented from returning to the oil source 2 when the mist generating device is stopped, It can always be filled with oil.
- the injector 11 is configured to suck the oil in the container 1 into the interior of the injector 11 by suction through the liquid supply passage 6.
- the sensor 10 is, for example, a proximity switch or a transmission photoelectric switch, which is selected according to the surrounding environment.
- the gas (pressurized air) supply to the injector 1 1 extends from the gas supply (pressure air supply) 20 and is internally provided with the filter 2 1, the pressure reducing valve 2 2, the pressure gauge 2 3 and the 2 port It takes place via the gas supply line 5 in which the solenoid valve 24 is installed.
- the 2-port solenoid valve 24 is used to control the operation and stop of the mist generating device, and may be a 2-port manual valve depending on the application.
- mist transfer flow path 50 One end of a mist transfer flow path 50 is connected to the conduit 7, and the other end of the mist transfer flow path 50 is Is connected to the rotary joint 51 of the machine tool.
- oil mist through the mist transport flow path 50, the rotary joint 51 of the machine tool, and the hollow spindle 52 for example, an oil hole of a tool such as a large oil hole diameter (small flow path resistance) Dorinore 53a, etc. It is possible to inject mist 5 5 a from 5 4 a to the processing point.
- a connector 40 as an auxiliary mist generation unit is installed in the mist transport flow path 50.
- the wedge outlet 4 1 of this connector (auxiliary mist generation unit) 40 branches from the gas supply passage 5 on the downstream side of the 2-port solenoid valve 2 4, and extends inside the carrier gas / liquid mixing unit 30 carrier gas supply
- the carrier gas (pressurized air) or the carrier gas “liquid mixed fluid is injected (sprayed) from the jet port 41 into the mist transfer flow path 50 through the passage 31.
- the pressure reducing valve 22 plays a role of controlling the supply pressure of the gas (carried pressure air) supplied from the gas supply source 20 to the injector 11, and the constant ratio pressure reducing valve 32 It serves to control the supply pressure of the carrier gas (pressurized air) supplied from the source 20 to the jet nozzle 4 1 of the connector (auxiliary mist generator) 40 via the pressure reducing valve 22.
- the constant pressure reducing valve 32 is configured to control the pressure on the secondary side of the pressure reducing valve 22 at a constant ratio, for example, a pressure reduced to about 0.6 to 0.8.
- the carrier gas supply pressure to the jet port 41 of the connector (auxiliary mist generation unit) 40 is automatically adjusted to the appropriate pressure (gas pressure) as the gas supply pressure to the injector 11 changes.
- the supply pressure is reduced at a constant rate).
- complicated adjustment of the carrier gas supply pressure to the jet nozzle 41 of the connector (auxiliary mist generation unit) 40 is not necessary, and the usability of the mist generation device can be improved.
- the carrier gas / liquid mixing section 30 is internally provided with a check valve 35 and a positive displacement pump 36, and is provided with an oil inlet path 34 connected to an oil tank 37.
- the oil injection passage 34 merges with the carrier gas supply passage 31 between the check valve 33 and the jet port 41 of the connector (auxiliary mist generation unit) 40.
- the suction force is generated at the liquid inlet 14 when the pressurized air that has flowed into the injector 1 1 passes through the throat 12 2, and the oil in the container 1 flows through the liquid supply passage 6 by this suction force. It is drawn from the oil source 2 to the injector 1 1 via it.
- the injector 11 divides the oil into fine particles at supersonic speed, mixes the pressurized air and the oil particles, and jets it as a mist.
- mist is generated in which the particle size distribution is concentrated at a very small diameter and high density.
- the amount of mist (liquid particles) to be generated can be changed by adjusting the variable throttle valve 9 while controlling the flow rate of the oil flowing into the injector 1 1 while observing the indication value of the flow meter 8 Yes, it is used in the minimum amount required for processing.
- the transfer of the mist discharged from the conduit 7 is performed via the internal pressure of the container 1.
- the pressurized air (carrier gas) spouted from the spout 4 1 of the connector (auxiliary mist generation part) 40 automatically adjusts the internal pressure of the container 1 to an appropriate pressure, and guides the mist in the space 4 Accelerate in the lead-out direction of the tube 7.
- the operating condition of the mist generating device in this case is the operating point C 4 in Fig. 2 as described below, and the mist generating device is operated at the appropriate operating point, and the concentration at which the performance of the injector 11 is fully developed.
- Mist is discharged from the conduit 7, and mist is sent from the oil hole 54a of the large diameter drill 53a via the mist transfer passage 50, the connector 40, the rotary joint 51 and the hollow spindle 52. 55 a is injected at a good injection speed to the processing point.
- the positive displacement pump 36 of the carrier gas / liquid mixing unit 30 is driven. Then, the oil in the oil tank 3 7 is injected into the carrier gas supply path 3 1 by the positive displacement pump 3 6, and additional mist from the weir outlet 4 1 of the connector (auxiliary mist generation unit) 40 in the mist transport direction The amount of mist 5 5 a injected from the oil horn 5 4 a of the large diameter drill 5 3 a is increased.
- adjustment of the additional mist amount is performed by controlling the discharge amount of the positive displacement pump 36 with a control circuit (not shown).
- FIG. 2 is an example of a system curve in the mist generating apparatus shown in FIG.
- Dorinole 53a with a large oil hole diameter that is, the case where the resistance of the transfer channel (resistance curve R 2 ) is small.
- a solid curve A 2 is a characteristic curve of the mist generating device.
- the gas supply pressure to the injector 11 and the resistance curve R and R 2 are the same as in FIG.
- the fixed pressure reducing valve 32 is configured to control the secondary pressure of the pressure reducing valve 22 at a constant ratio, for example, a pressure reduced to about 0.6 to 0.8.
- the ratio P 2 ZP ⁇ S (for example, 0.6 to 0.8) of the pressure P 2 in the container to the gas supply pressure Pi is set, and the gas supply pressure Pi to the injector 11 is set. At the same time, the pressure in the container P 2 automatically becomes the optimum pressure.
- the mist generating device is driven at a driving point C 4, the container internal pressure force of the mist generating device (discharge pressure) P 5 is substantially equal to the container internal pressure P 2 (P 5 ⁇ P 2 ) becomes. Chi words, even if the use of tools (drills) oil hole diameter is changed, always optimum mist ejection out pressure P 5 can be maintained.
- the mist flow rate ejected from the mist generating device becomes Q 3.
- the mist air volume injected from the injector 11 into the container 1 is a curve of an imaginary line (characteristic curve when the carrier gas supply pressure to the auxiliary mist generation unit 40 is 0) and the pressure P 2 in the container It is the wind volume.
- the air volume difference Q 3 — is the acceleration air volume of mist due to the supply of the carrier gas to the auxiliary mist generation unit 40.
- This force [I-speed air volume increases the spray speed of mist 55a from the Eino Le Hornore 54a of drill (tool) 53a, and improves the adhesion of mist to the processing point, and also the ability to remove chips etc. Can be increased. In the example shown in FIG.
- the constant pressure reducing valve 32 is provided to control the pressure on the secondary side of the pressure reducing valve 22 to a pressure reduced to a fixed ratio.
- the constant pressure reducing valve 32 is replaced with a constant pressure reducing valve, and the pressure on the 27 fire side of the pressure reducing valve 22 is controlled to a constant HJ 3 E, for example, a pressure of about 0.15 to 0.25MP a by this differential pressure reducing valve. You may do this.
- the gas supply to the injector 11 is performed so that the differential pressure P-P 2 with respect to the gas supply pressure Pi in the container pressure P 2 becomes constant (e.g., 0.15-0.025MP a) Pressure P! With the configuration, container pressure P 2 can be made so that such automatically optimum pressure.
- FIG. 3 is a view showing a schematic configuration of a mist generating device according to a second embodiment of the present invention.
- the mist generating device of this embodiment has a container 1 which accommodates a liquid supply source (oil source) 2 for supplying a liquid cooling lubricant such as oil in the lower part thereof.
- the vessel 1 is configured as a pressure vessel covered by a force bar 3.
- a nozzle nozzle (separating nozzle) having a liquid inlet 14 immediately after the throat (the narrowest portion) 12 is used as the injector 11. That is, the supply of pressurized air (gas) to the injector 11 is performed via the gas supply passage 5. Then, after the pressurized air passes through the throat 12 of the injector 11, the pressure becomes minimum, and then the pressure rises rapidly, and then gradually rises to the outlet 13 of the injector 11. As a result, suction force is generated at the liquid inlet 14 provided immediately after the throat 12 of the injector 1 1, and this suction force causes the oil to flow from the oil source 2 through the liquid supply passage 6 to the injector 1. It is sucked into 1).
- the injector 11 mixes the pressurized air and the oil in the expansion pipe 15 and jets it as a mist.
- a foam plate consisting of a flat sponge made up of open cells of a three-dimensional network structure utilizing only the bone part of the foam (the membrane is removed) Sixteen are arranged.
- the foam plate 16 is suspended and held from the cover 3 by a suspension port 17.
- the cover 3 is provided with a conduit 7 for discharging the mist in the space 4 from the container 1 and a pressure gauge 60 for checking the pressure in the container (discharge pressure).
- a float type flow meter 8 is provided in the liquid supply passage 6 extending from the oil source 2 to the injector 1 1.
- the flow meter 8 is provided with a flow rate indicator 8 a and a backflow prevention mechanism 8 b.
- the fluid supply passage 6 is also provided with a variable throttle valve 9 for adjusting the flow rate of oil supplied to the injector 1 1 and a sensor 10 for detecting the floating of the float 8 c of the flow meter 8. There is.
- the oil in the liquid supply passage 6 is prevented from returning to the source 2 when the mist generating device is stopped, and the liquid supply passage 6 is It can always be filled with oil.
- the sensor 10 for detecting the floating of the float 8 c, it is possible to remotely monitor that the mist generating device is generating mist normally.
- the sensor 10 is a proximity switch or transmissive photoelectric switch, which is selected according to the surrounding environment.
- the 2-port solenoid valve 24 is used to control the operation and stop of the mist generating device, and may be a 2-port manual valve depending on the application.
- One end of a mist transfer flow path 50 is connected to the conduit ⁇ , and the other end of the mist transfer flow path 50 is connected to the rotary joint 51 of the machine tool.
- mist transport flow path 50 the rotary joint 51 of the machine tool, and the hollow spindle 52, for example, the Einore Hornore tool for tools such as Dorinolet 53b with a small oil hole diameter (large flow path resistance). It is possible to inject mist 5 5 b from 5 4 b to the processing point.
- a relief flow path 61 is connected to the mist transfer flow path 50 by branching from the middle.
- a constant ratio relief valve that operates at a pressure that is a constant ratio to the pressure of gas supplied to the injector 11, for example, a pressure of about 0.6 to 0.8 times.
- Filter 64 and drain pot 65 are installed in the relief channel 61.
- the pressure at the piping outlet of the fixed relief valve 62 is divided from the downstream side of the two-port solenoid valve 24 in the gas supply path 5 to the gas supply source 2 °, the injector 1 1 and the fixed relief valve. It is configured to be led by a pilot line 63 connected to the pilot port 6 2 a of the valve 6 2.
- the relief channel 61 may be connected to the space 4 in the container 1.
- the two-port solenoid valve 24 when the two-port solenoid valve 24 is opened and the mist generating device is operated, pressurized air at the pressure set by the pressure reducing valve 2 2 flows into the injector 1 1 through the gas supply passage 5 and mist is generated. Ru.
- a predetermined ratio for example, about 0.7 times the pressure to the pressurized air (gas) supply pressure to the injector 11, the ratio is automatically adjusted to the fixed ratio.
- the relief valve 62 operates to relieve part of the mist flowing in the mist transfer passage 50 through the relief passage 61, thereby maintaining the pressure in the container 1 at an appropriate pressure. Be done.
- the mist relieved through the relief flow path 61 is separated into air and oil by the filter 64, and the separated air is discharged from the exhaust port 64a.
- the oil separated by the filter 64 is collected in the drain pot 65 and reused.
- the operating state of the mist generating device in this case is as follows, Ri Do the operating point C 5 in FIG. 4, mist generating device is operated at a proper operating point, enough from the conduit 7 with respect to the small diameter drill The mist of air volume and concentration is discharged, and the Einore honole 54 b to the mist 5 55 b of small diameter dorinore 5 3 b are processed at the processing point via the mist transfer flow path 50, the rotary joint 51 and the hollow spindle 52. It is jetted and good processing can be done.
- Fig. 4 shows an example of a system curve in the mist generation device shown in Fig. 3.
- the resistance (resistance curve R 3 ) of the transfer channel is large. If it is too much, with the above-mentioned ratio relief valve 62, The system curve is shown with the characteristic curve A i of the mist generating device when the pressure inside the container (discharge pressure) is optimized, and the resistance curve of the transfer channel.
- the gas supply pressure P i to the injector and the resistance of the transfer channel (resistance curve R 3 ) are the same as in the case shown in FIG.
- a resistance curve in FIG. 4 and a line R4 are a combined resistance curve obtained by combining the resistance of the constant ratio relief valve 62 and the resistance of the transfer flow path (resistance curve R 3 ).
- the proportional relief valve 62 is configured to operate at a pressure that is a constant ratio to the gas supply pressure to the injector 11, for example, a pressure of about 0.6-0.8 times. ing.
- a constant ratio ⁇ 6 ⁇ to the gas supply pressure P alpha in container pressure P 6 e.g., 0.6 to 0.8
- the pressure in the container ⁇ 6 automatically becomes the optimum pressure according to the setting of.
- mist generating device is driven at a driving point c 5
- Miss container internal pressure force of bets generator (discharge pressure) [rho 6 is always substantially constant. That is, even when using a tool (drill) having a changed oil hole diameter, the optimum mist discharge pressure ⁇ 6 can be maintained at all times. As a result, a sufficient gas flow rate necessary for mist generation can be obtained inside the injector 11, and the mist generated by the injector 11 can be dense and good.
- the mist air volume injected from the injector 11 into the container 1 is In addition, the air volume of mist 5 5 b injected from the mist generating device through the mist conveyance flow path 50 and from the oil hole 5 4 b of the tool such as the small diameter drill 5 3 b is the inside of the container of the mist generating device.
- the air volume Q 4 at the intersection of the pressure P 6 and the resistance curve R 3 is obtained.
- the air flow rate difference Q i-Q 4 is the air flow rate of the gas released from the constant ratio relief valve 62 to the outside of the container.
- the mist generated from the mist generating device through the mist transfer flow path 50 and misted from the oil hole 54 b of the tool such as small diameter drill 5 3 b air volume Q 4 of b is slightly lower than the case of FIG.
- the mist air volume injected from the injector 1 1 into the container 1 becomes large, and a sufficient gas flow rate necessary for mist generation can be obtained inside the injector 1 1. Strong valid mists are generated.
- the mist (liquid fine particle) discharge amount (mist generation device) injected from the mist generation device through the mist conveyance flow path 50 for example, from the oil hole 54 b of the tool such as small diameter drinolet 53 b
- the product of the mist volume and the concentration) injected from the oil hole of the tool such as a small diameter drill through the transport channel increases.
- a sufficient misfeed rate can be obtained for the processing of the small diameter drill 53b and the like.
- FIG. 3 shows an example in which the relief flow path 61 is provided with a constant ratio relief valve 62 operating at a constant ratio to the gas supply pressure to the injector 11.
- This constant pressure relief valve 62 has a constant differential pressure with respect to the gas supply pressure to the injector 11, For example, even if it is replaced with a differential relief valve that operates with a differential pressure of about 0.1 to 5. 5 MP a, it can be replaced. Also by this, the differential pressure P-P 6 with respect to the gas supply pressure of the in-container pressure P 6 is constant (e.g., 0.15-0.2. 5 MP a) to the injector 1 1 In accordance with the setting of the gas supply pressure P, the pressure in the container P 6 can be automatically adjusted to the optimum pressure.
- FIG. 5 is a view showing a schematic configuration of a mist generating apparatus according to a third embodiment of the present invention.
- the mist generating device of this embodiment has a container 1 which accommodates a liquid supply source (oil source) 2 for supplying a liquid cooling lubricant such as oil in its lower part.
- the vessel 1 is configured as a pressure vessel covered by a cover 3.
- the injector 1 1 In the space 4 in the container 1 formed above the oil source 2, the injector 1 1 is fixed to the cover 3 and receives the supply of the compressed air (gas) and the oil (liquid). The mist injected from the injector 11 is retained in the space 4.
- a Laval nozzle (divergent nozzle) provided with a liquid inlet 14 immediately after the throat (the narrowest portion) 12 is used as the injector 11. That is, the supply of pressurized air (gas) to the injector 11 is performed via the gas supply passage 5. Then, after the pressurized air passes through the throat 12 of the injector 11, the pressure becomes minimum, and then the pressure rises rapidly, and then gradually rises to the outlet 13 of the injector 11. As a result, suction force is generated at the liquid inlet 14 provided immediately after the throat 12 of the injector 1 1, and this suction force causes the oil to flow from the oil source 2 through the liquid supply passage 6 to the injector 1. It is sucked into 1).
- the injector 11 by forming the injector 11 with the Lava Luno's Nole (Suehiro nozzle) provided immediately after the throat 12 with the liquid inlet 14, mist generation inside the injector (Laval nozzle) 1 1
- the gas flow for this purpose is supersonic flow, and the liquid supplied from the liquid inlet 14 inside the injector 1 1 is divided at a supersonic speed and atomized to produce a high concentration mist with a fine particle diameter. Can be generated.
- the injector 11 mixes the pressurized air and the oil in the expansion pipe 15 and jets it as a mist.
- a foam plate consisting of a flat sponge consisting of open cells of a three-dimensional network structure utilizing only the bone portion of the foam (the membrane is removed) 1 Six are arranged.
- the foam plate 16 is suspended and held from the cover 3 by a suspension port 17.
- the mist having a fine particle diameter passes through or deflects in the foam plate 16, flows and floats in the container 1, and the particle diameter is relatively large.
- the foam plate 16 absorbs and condenses in the container 1 Drop into oil source 2.
- a mist is generated in which the particle size distribution is concentrated at a very small diameter and at a high density.
- the cover 3 is provided with a conduit 7 for discharging the mist in the space 4 from the container 1 and a pressure gauge 60 for checking the pressure in the container (discharge pressure).
- a float type flow meter 8 is provided in the liquid supply passage 6 extending from the oil source 2 to the injector 1 1.
- the flow meter 8 is provided with a flow rate indicator 8a and a backflow prevention mechanism 8b.
- the fluid supply passage 6 is also provided with a variable throttle valve 9 for adjusting the flow rate of oil supplied to the injector 1 1 and a sensor 10 for detecting the floating of the float 8 c of the flow meter 8. There is.
- the injector 11 is configured to suck the oil in the container 1 into the interior of the injector 11 by suction through the liquid supply passage 6.
- the sensor 10 is, for example, a proximity switch or a transmission photoelectric switch, which is selected according to the surrounding environment.
- the 2-port solenoid valve 24 is used to control the operation and stop of the mist generating device, and may be used as a 2-port manual valve depending on the application.
- mist transfer flow path 50 One end of a mist transfer flow path 50 is connected to the conduit 7, and the other end of the mist transfer flow path 50 is connected to a rotary joint 51 of the machine tool.
- the rotary joint 51 of the machine tool, and the hollow spindle 52 for example, the oil hole of a tool such as a large oil hole diameter (small flow path resistance) Dorinore 5 3a etc. From 5 4 a to mist 5 5 a can be jetted to the processing point.
- auxiliary mist generator 71 is provided to spray the toner.
- the supply of carrier gas to auxiliary mist generation part 7 1 is branched from gas supply passage 5 on the downstream side of 2 port solenoid valve 2 4, and internally 2 port solenoid valve 8 1, ratio reducing valve 8 2 and check valve Install 8 3 5036
- the pressure reducing valve 22 plays a role of controlling the supply pressure of the gas (calo-pressure air) supplied from the gas supply source 20 to the injector 11, and the constant ratio pressure reducing valve 82 is a gas supply It plays a role of controlling the supply pressure of carrier gas (pressurized air) supplied from the source 20 to the auxiliary mist generator 71 via the pressure reducing valve 22.
- the constant pressure reducing valve 82 is configured to control the pressure on the secondary side of the pressure reducing valve 22 at a constant ratio, for example, to a pressure on the order of 0.6 to 0.8.
- the constant pressure reducing valve 82 is replaced with a constant pressure reducing valve, and with this differential pressure reducing valve, the secondary pressure of the pressure reducing valve 22 is set to a constant pressure, for example, 0.15 to 0.25 MP. As in the above, the pressure may be controlled so as to be reduced to about a.
- the carrier gas supply pressure to the auxiliary mist generation unit 71 is automatically adjusted to an appropriate pressure (a pressure at which the gas supply pressure is reduced at a constant ratio) as the gas supply pressure to the injector 11 is changed. It becomes. As a result, complicated adjustment of the carrier gas supply pressure to the auxiliary mist generation unit 71 is not necessary, and the usability of the mist generation device can be improved.
- the supply of liquid to the auxiliary mist generation unit 71 branches off from the liquid supply passage 6 on the downstream side of the variable throttle valve 9, and the liquid introduction port 7 4 of the auxiliary mist generation unit 71 on the downstream side of the restriction unit 72.
- the auxiliary fluid supply line 90 connected to the In the auxiliary liquid supply passage 90 the carrier gas supply pressure to the auxiliary mist generation unit 71 and the pressure in the container 1 are used as pilot pressure, and the carrier gas supply pressure to the auxiliary mist generation unit 71 is set to the container 1
- a pilot on-off valve 91 is provided which opens only when the pressure is higher than the internal pressure.
- valve means such as a check valve or a solenoid valve may be used.
- pressurized air at the pressure set by the pressure reducing valve 22 flows into the injector 11 via the gas supply passage 5.
- the ratio of the secondary pressure of the pressure reducing valve 22 to the predetermined pressure by the constant pressure reducing valve 82 The pressurized air (carrier gas), which has been depressurized to the above pressure, is supplied to the auxiliary mist generation unit 71 via the carrier gas supply passage 80.
- the suction force is generated at the liquid inlet 14 when the pressurized air that has flowed into the injector 1 1 passes through the throat 12 2, and the oil in the container 1 flows through the liquid supply passage 6 by this suction force. It is drawn from the oil source 2 to the injector 1 1 via it.
- the injector 11 divides the oil into fine particles at supersonic speed, mixes the pressurized air and the oil particles, and jets it as a mist.
- the mist having a fine particle diameter floats in the space 4 in the container 1, and the one having a relatively large particle diameter is absorbed by the foam plate 16 and condensed to condense in the lower portion of the container 1. Drop into oil source 2.
- mist is generated in which the particle size distribution is concentrated at a very small diameter and high density.
- the amount of mist (liquid particles) to be generated can be changed by adjusting the variable throttle valve 9 while controlling the flow rate of the oil flowing into the injector 1 1 while observing the indication value of the flow meter 8 Yes, it is used in the minimum amount required for processing.
- the transfer of the mist discharged from the conduit 7 is performed via the internal pressure of the container 1.
- the pressurized air (carrier gas) ejected from the outlet 7 3 of the auxiliary mist generator 7 1 automatically adjusts the internal pressure of the container 1 to an appropriate pressure, and the mist in the space 4 is directed toward the outlet of the conduit 7. Accelerate towards Also, when the pressurized air (carrier gas) flowing into the auxiliary mist generation unit 71 passes through the throttling unit 72, a suction force is generated due to the expansion of the cross-sectional area, and the oil causes the oil to flow from the liquid supply passage 6 It is sucked into the auxiliary mist generator 71 through the branched auxiliary liquid supply path 90.
- the auxiliary mist generating unit 71 mixes the pressurized air (carrier gas) and the oil at the outlet 7 3 thereof, and injects it as a mist (auxiliary mist).
- auxiliary mist auxiliary mist
- the increased amount of mist is discharged from the conduit 7 at an appropriate pressure, and the oil hole 5 of the large diameter Dorinolet 5 3 a is passed through the mist transfer flow path 50, the rotary joint 51 and the hollow spindle 52.
- the mist from 4 a to the mist 5 5 a is injected at a good injection speed to the processing point.
- FIG. 6 is a view showing a schematic configuration of a mist generating device according to a fourth embodiment of the present invention. 6 differs from the example shown in FIG. 5 of the example shown in FIG. 6 in that the check valve 76 is used as an auxiliary mist generating unit 7 instead of the pie opening on-off valve 91 in the mist generating apparatus shown in FIG. It is located at the exit side of 1.
- the other configuration is the same as the example shown in FIG. 5, so the description thereof is omitted here.
- the mist generating device of the present invention is used to generate mist for cooling and lubricating tools and workpieces of machine tools such as machining centers and lathes.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Nozzles (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004247375A JP2006062024A (ja) | 2004-08-26 | 2004-08-26 | ミスト生成装置 |
JP2004-247375 | 2004-08-26 |
Publications (1)
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WO2006022180A1 true WO2006022180A1 (ja) | 2006-03-02 |
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Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/015036 WO2006022180A1 (ja) | 2004-08-26 | 2005-08-11 | ミスト生成装置 |
Country Status (4)
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JP (1) | JP2006062024A (ja) |
KR (1) | KR20070051918A (ja) |
CN (1) | CN101010165A (ja) |
WO (1) | WO2006022180A1 (ja) |
Cited By (4)
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CN101811269A (zh) * | 2010-03-17 | 2010-08-25 | 北京航空航天大学 | 一种低温微量润滑系统 |
JP2013091124A (ja) * | 2011-10-25 | 2013-05-16 | Aisin Kiko Co Ltd | 油水ミスト用給水安定化装置及び油水ミスト生成システム |
CN103567811A (zh) * | 2012-11-30 | 2014-02-12 | 常州大学 | 一种用于大齿圈车削加工的微量润滑装置 |
CN110449981A (zh) * | 2019-07-04 | 2019-11-15 | 汇专绿色工具有限公司 | 复合喷雾微量润滑冷却系统 |
Families Citing this family (13)
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AU2009323377B2 (en) | 2008-12-04 | 2013-07-11 | Acp Japan Co., Ltd. | System for pressure bathing in gas-containing mist |
BRPI0922579A2 (pt) * | 2008-12-10 | 2015-12-15 | Acp Japan Co Ltd | sistema de banho a pressão de névoa de gás. |
WO2010073755A1 (ja) * | 2008-12-26 | 2010-07-01 | 日本エー・シー・ピー株式会社 | 炭酸ガスミスト圧浴システム |
KR20110118124A (ko) * | 2009-02-06 | 2011-10-28 | 쇼이치 나카무라 | 가스 미스트 압욕 시스템 |
KR200459603Y1 (ko) * | 2010-06-07 | 2012-04-04 | 신순섭 | 오일미스트 생성유량 자동조절장치 |
CN102490080A (zh) * | 2011-11-30 | 2012-06-13 | 东风汽车股份有限公司 | 压力和含油量精密无级可调的柔性微量润滑系统 |
CN102873584B (zh) * | 2012-10-12 | 2015-02-25 | 上海交通大学 | 高频脉动式微切削润滑装置 |
CN103551915A (zh) * | 2013-10-23 | 2014-02-05 | 陈建军 | 一种准干式切削用超音速喷射装置及其控制方法 |
CN104476318B (zh) * | 2014-12-18 | 2017-01-25 | 东莞安默琳机械制造技术有限公司 | 一种机床加工用的可自动调节油雾量的微量润滑供应系统 |
SE539345C2 (en) * | 2015-06-25 | 2017-07-18 | Accu-Svenska Ab | Lubrication and cooling device using a cryogenic fluid |
CN107063986B (zh) * | 2017-04-25 | 2023-08-04 | 盐城工学院 | 腐蚀箱和腐蚀试验装置 |
CN106932336A (zh) * | 2017-04-25 | 2017-07-07 | 盐城工学院 | 喷雾装置及腐蚀箱 |
CN116608401A (zh) * | 2023-04-26 | 2023-08-18 | 宝腾智能润滑技术(东莞)有限公司 | 微量油雾润滑系统 |
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CN101811269A (zh) * | 2010-03-17 | 2010-08-25 | 北京航空航天大学 | 一种低温微量润滑系统 |
JP2013091124A (ja) * | 2011-10-25 | 2013-05-16 | Aisin Kiko Co Ltd | 油水ミスト用給水安定化装置及び油水ミスト生成システム |
CN103567811A (zh) * | 2012-11-30 | 2014-02-12 | 常州大学 | 一种用于大齿圈车削加工的微量润滑装置 |
CN110449981A (zh) * | 2019-07-04 | 2019-11-15 | 汇专绿色工具有限公司 | 复合喷雾微量润滑冷却系统 |
CN110449981B (zh) * | 2019-07-04 | 2021-10-29 | 汇专科技集团股份有限公司 | 复合喷雾微量润滑冷却系统 |
Also Published As
Publication number | Publication date |
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KR20070051918A (ko) | 2007-05-18 |
JP2006062024A (ja) | 2006-03-09 |
CN101010165A (zh) | 2007-08-01 |
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