CN111188982B - Oil-gas lubricating device, oil-gas lubricating electric spindle assembly and control method thereof - Google Patents

Oil-gas lubricating device, oil-gas lubricating electric spindle assembly and control method thereof Download PDF

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Publication number
CN111188982B
CN111188982B CN202010019846.5A CN202010019846A CN111188982B CN 111188982 B CN111188982 B CN 111188982B CN 202010019846 A CN202010019846 A CN 202010019846A CN 111188982 B CN111188982 B CN 111188982B
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oil
gas
temperature
controller
air
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CN111188982A (en
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包志刚
吴玉厚
赵晓旭
位华
孙健
王贺
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Shenyang Jianzhu University
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Shenyang Jianzhu University
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
    • F16N7/38—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N25/00—Distributing equipment with or without proportioning devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
    • F16N39/02—Arrangements for conditioning of lubricants in the lubricating system by cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
    • F16N39/04—Arrangements for conditioning of lubricants in the lubricating system by heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
    • F16N39/06—Arrangements for conditioning of lubricants in the lubricating system by filtration

Abstract

The invention provides an oil-gas lubrication device, an oil-gas lubrication electric spindle assembly and a control method thereof, wherein the oil-gas lubrication device comprises: an oil and gas distributor having a plurality of outlet passages; the oil gas conveying devices are communicated with the oil gas distributor and used for conveying oil gas into the oil gas distributor, and the oil gas conveying devices can convey the oil gas in at least two temperature ranges; the controller is used for controlling the work of the oil-gas distributor and the oil-gas conveying devices so as to adjust the working states of the oil-gas conveying devices and the oil-gas distributor and the temperature of the conveyed oil gas; each oil gas conveying device comprises an oil tank and a gas circuit component, a first temperature adjusting device for lifting the oil temperature is arranged in the oil tank, and a second temperature adjusting device is arranged on the gas circuit component. A plurality of oil gas delivery devices of this scheme can carry the oil gas of different temperatures, and first attemperator and second attemperator can further realize the temperature regulation and control, alright enlarge the lubricated temperature range of entire system adaptation like this, realize the lubrication in wider temperature range.

Description

Oil-gas lubricating device, oil-gas lubricating electric spindle assembly and control method thereof
Technical Field
Embodiments of the present disclosure generally relate to the field of oil-air lubrication, and more particularly, to an oil-air lubrication device, an oil-air lubricated electric spindle assembly, and a control method thereof.
Background
At present, the application range of all-ceramic bearing electric spindles and the like is wider and wider, for example, the all-ceramic bearing electric spindles and the like can be applied to aerospace, common machine tools or equipment in some extremely cold areas, and in recent years, research on all-ceramic bearing electric spindles and the like is continuously carried out. In the process of research on the full-ceramic bearing electric spindle, the performance of the full-ceramic bearing electric spindle is often determined through experiments, for example, when it is determined that a full-ceramic bearing electric spindle is to be applied to aerospace, common machine tools or equipment in extremely cold regions, simulation experiments are often performed on the full-ceramic bearing electric spindle according to the application occasions of the full-ceramic bearing electric spindle. When the all-ceramic bearing electric spindle is applied to different environments, the temperature difference of the surroundings during working is larger, so when simulation experiments are carried out on different all-ceramic bearing electric spindles, the experimental environment difference of the all-ceramic bearing electric spindles is larger, and because the lubricating devices have the optimal lubricating temperature ranges, the same lubricating device cannot be used for lubricating the all-ceramic bearing electric spindles and the like under different experiments when different all-ceramic bearing electric spindle experiments are carried out, and the corresponding lubricating devices are selected according to the experimental environment temperature when different all-ceramic bearing electric spindle experiments are carried out at present, so that the experiments on different all-ceramic bearing electric spindles need to be simultaneously provided with different lubricating devices for lubricating different all-ceramic bearing electric spindle experiments, therefore, the experiment cost of the full ceramic bearing electric spindle and the like can be increased, and the lubricating device needs to be replaced back and forth according to the electric spindle to be tested, so that the efficiency of the electric spindle experiment is low, and the operation is complex.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
To this end, a first object of the present invention is to provide an oil-air lubrication device.
It is another object of the present invention to provide an oil and gas lubricated electric spindle assembly.
It is a further object of the present invention to provide a method of controlling an oil and gas lubricated electric spindle assembly.
To achieve the above object, a first aspect of the present disclosure provides an oil-air lubrication device, including: an oil and gas distributor having a plurality of output passages; the oil gas conveying devices are communicated with the oil gas distributor and used for conveying oil gas into the oil gas distributor, and the oil gas conveying devices can convey the oil gas in at least two temperature ranges; the controller is connected with the oil-gas distributor and the oil-gas conveying devices and is used for controlling the oil-gas distributor and the oil-gas conveying devices to work so as to adjust the working states of the oil-gas conveying devices and the oil-gas temperature conveyed by the oil-gas conveying devices and adjust the working states of the oil-gas distributor and the output oil-gas temperature; each oil gas conveying device comprises an oil tank and a gas circuit component, a first temperature adjusting device connected with the controller is arranged in the oil tank, the first temperature adjusting device is used for increasing or decreasing the temperature of oil in the oil tank, and a second temperature adjusting device connected with the controller is arranged on the gas circuit component.
According to the oil-gas lubrication device that this first aspect of this disclosure provided, mainly include a plurality of oil-gas delivery devices, oil-gas distributor and controller, wherein, oil-gas distributor is used for supplying to bearing, electric main shaft department that need lubricate after dividing into the multichannel with the oil gas that a plurality of oil-gas delivery devices were sent, and oil-gas distributor's effect lies in realizing the equivalent or proportional distribution of oil gas to reduce the loss of oil-gas lubricating oil, reach the effective lubrication of parts such as best oil supply volume assurance bearing, electric main shaft. And the oil-gas conveying devices are used for conveying oil-gas lubricating oil to the oil-gas distributor after oil-gas mixing is completed. And a plurality of oil gas conveying device can carry the oil gas of two at least temperature ranges, and a plurality of oil gas conveying device can carry the oil gas of different temperatures promptly, utilizes different oil gas conveying device just so can produce the oil gas lubricating oil under the different ambient temperature of adaptation, and then just can lubricate full ceramic bearing electricity main shaft etc. under the different experimental environment. And because each oil gas conveying device has the lubricating environment temperature of its fixed adaptation, consequently, adopt a plurality of oil gas conveying devices that can carry the oil gas of different temperatures, just can lubricate the full ceramic bearing electricity main shaft of different experimental environment temperatures etc.. Different oil gas conveying devices can be selected to carry out oil gas conveying according to the current actual experiment environment temperature when different full ceramic bearing electric main shafts are tested, so that oil gas lubricating oil with different temperatures can be generated to meet the current experiment environment temperature requirement, lubrication within a wider temperature range can be carried out by using the same oil gas lubricating device, and lubrication of different full ceramic bearing electric main shafts is realized. Wherein, the controller is used for controlling oil gas distributor's work on the one hand to the realization is to the distribution control of lubricating oil, and on the other hand controller is used for carrying out the switching control between a plurality of oil gas delivery device according to experimental environment temperature, so that can utilize different oil gas delivery device to carry out the supply of oil gas lubricating oil under the different experimental environment, and what oil gas delivery device work that just the controller mainly used controls here, and what oil gas delivery device does not work, also controls a plurality of oil gas delivery device's operating condition. Meanwhile, the controller is also used for controlling the air path control, the oil path control, the first temperature regulating device, the second temperature regulating device and the like of each oil and gas conveying device, so that the adjustable air supply pressure, the controllable oil supply amount and the like of each oil and gas conveying device can be realized. This kind of setting, a plurality of oil gas delivery device can simultaneous working or the independent work under the effect of controller, and when specifically using, can switch between the oil gas delivery device of difference according to different experimental environment temperatures to can control the oil gas delivery device of different temperature ranges and work, like this when experimental environment temperature is lower, the oil gas delivery device of just controllable high temperature carries out work, low and lead to lubricating oil to freeze in order to prevent oil gas lubricating oil's temperature. And when the experimental environment temperature is higher, the low-temperature oil-gas conveying device can be controlled to work so as to supply oil-gas lubricating oil at a lower temperature, so that the full-ceramic bearing electric main shaft is fully lubricated and cooled. Therefore, the lubrication at different environmental temperatures can be met, the lubrication under the working condition of a wider temperature range can be realized, and the effective lubrication and cooling of the full-ceramic bearing electric spindle under complex and multi-working conditions can be realized. In addition, because the lubricating system adopts an oil-gas lubricating mode, the lubricating system has a good lubricating effect on the electric main shaft bearing under the conditions of high temperature and high pressure, enhances the oil film strength of the lubricating surface of the bearing, prolongs the service life of the bearing and reduces the environmental pollution.
In addition, according to the scheme, the first temperature regulating device connected with the controller is further arranged in the oil tank, so that when the oil-gas conveying device is used for supplying oil-gas lubricating oil, the temperature of the oil in the oil tank can be increased or reduced through the first temperature regulating device, or the temperature of the gas is heated through the second temperature regulating device arranged on the gas circuit component, the temperature range of lubrication which can be suitable for a single oil-gas conveying device can be further enlarged, lubrication of each oil-gas conveying device in a wider temperature range is realized, the experimental environment temperature which can be adapted to the whole lubricating system can be further increased, and the lubricating temperature range which can be adapted to the whole lubricating system can be enlarged.
Further preferably, each of the oil and gas delivery devices further comprises:
an oil-gas mixing device;
the oil tank assembly comprises an oil tank, a pneumatic oil filling pump, a first temperature adjusting device, a liquid level meter and a first temperature transmitter, wherein the pneumatic oil filling pump, the first temperature adjusting device, the liquid level meter and the first temperature transmitter are arranged in the oil tank;
the oil pipeline is connected between the outlet of the pneumatic oil filling pump and the inlet of the oil-gas mixing device, and one or more of a first pressure regulating valve, a throttle valve and a flowmeter are arranged on the oil pipeline;
the air path assembly comprises a water diversion filter and a filtering pressure reducing valve which are sequentially communicated in series, an inlet of the water diversion filter is connected with an air inlet source, an outlet of the filtering pressure reducing valve is communicated with two air flow branches, a first air flow branch of the two air flow branches is sequentially connected with an inlet of the oil-gas mixing device through a second pressure regulating valve and a speed regulating valve, a second air flow branch of the two air flow branches is communicated with an air inlet of the pneumatic oil injection pump, and a second temperature regulating device is arranged at an outlet of the second temperature regulating device or an outlet of the filtering pressure reducing valve on each of the two air flow branches;
the controller is connected with the pneumatic oil injection pump, the first temperature adjusting device, the liquid level meter, the first temperature transmitter, the first pressure adjusting valve, the throttle valve and the flow meter of each oil and gas conveying device.
On the basis of any one of the above schemes, the oil tank assembly further comprises: an oil filter disposed within the oil tank; and the oil pressure gauge is arranged in the oil tank, is connected with the controller and is used for detecting the oil pressure in the oil tank and feeding back the detection result to the controller.
On the basis of any scheme, a two-position three-way electromagnetic valve connected with the controller is arranged at an outlet of the filtering and reducing valve, the two-position three-way electromagnetic valve is provided with two outlets, the two outlets of the two-position three-way electromagnetic valve are communicated with the two airflow branches in a one-to-one correspondence manner, the two outlets of the two-position three-way electromagnetic valve can be connected or communicated with an inlet of the two-position three-way electromagnetic valve under the action of the controller, or a safety valve connected with the controller is arranged at the outlet of the filtering and reducing valve, and the outlet of the safety valve is communicated with the two airflow branches.
On the basis of any scheme, the oil gas conveying devices comprise at least one high-temperature oil gas conveying device and at least one low-temperature oil gas conveying device, and the oil gas temperature range supplied by the high-temperature oil gas conveying device is larger than the oil gas temperature range supplied by the low-temperature oil gas conveying device. The temperature range of the oil gas supplied by the high-temperature oil gas conveying device is greater than or equal to 75 ℃ and less than or equal to 200 ℃, and further preferably, the temperature range of the oil gas supplied by the high-temperature oil gas conveying device is greater than or equal to 100 ℃ and less than or equal to 170 ℃, or the temperature range of the oil gas supplied by the high-temperature oil gas conveying device is greater than or equal to 120 ℃ and less than or equal to 150 ℃. The temperature range of oil gas supplied by the low-temperature oil gas conveying device is greater than or equal to minus 50 ℃ and less than or equal to 50 ℃, or the temperature range of oil gas supplied by the low-temperature oil gas conveying device is greater than or equal to minus 50 ℃ and less than or equal to 0 ℃.
On the basis of any one of the above schemes, the at least two temperature ranges include a first temperature range and a second temperature range, wherein the first temperature range is greater than or equal to 75 ℃ and less than or equal to 200 ℃ or greater than or equal to 100 ℃ and less than or equal to 170 ℃ or greater than or equal to 120 ℃ and less than or equal to 150 ℃, and the second temperature range is greater than or equal to minus 50 ℃ and less than or equal to 50 ℃ or greater than or equal to minus 50 ℃ and less than or equal to 0 ℃.
On the basis of any one of the above schemes, a display panel is arranged on the controller and used for displaying the working state and working parameters of the oil-gas distributor and the working state and working parameters of the oil-gas conveying devices.
On the basis of any scheme, the number of the output channels is 4 to 8.
On the basis of any scheme, each output channel is further provided with a second temperature transmitter, and the second temperature transmitter is used for detecting the oil temperature in the corresponding output channel and feeding the detected oil temperature back to the controller in an electric signal mode.
On the basis of any one of the above schemes, a pressure gauge is further arranged on the oil pipeline and used for detecting the pressure in the oil pipeline, and the controller is further connected with the pressure gauge. Preferably, a bypass may be branched from the oil line pipe, and then the pressure gauge may be disposed on the bypass of the oil line pipe, or of course, the pressure gauge may be directly connected in series to the main line of the oil line pipe without disposing the bypass.
On the basis of any one of the above schemes, the oil-gas lubrication device further comprises an alarm device connected with the controller, and the alarm device is used for giving an alarm when the oil-gas lubrication device is abnormal.
On the basis of any scheme, the oil gas distributor is connected with the controller, and can equally distribute oil gas to the output channels or proportionally distribute oil gas to the output channels under the action of the controller.
On the basis of any one of the above schemes, the controller comprises:
the branch controllers are connected with the oil-gas conveying devices on the corresponding branches in a one-to-one correspondence manner, and control the oil-gas conveying devices on the corresponding branches to work;
and the master controller is connected with the branch controllers and the oil-gas distributor and is used for controlling the work of the branch controllers and the oil-gas distributor.
On the basis of any scheme, the controller can control the oil-gas conveying devices with different temperature ranges to convey oil gas for the oil-gas mixing device according to the temperature of the required oil gas, and simultaneously control the first temperature regulating device and the second temperature regulating device corresponding to the oil-gas conveying devices to regulate the temperature of the oil gas; the oil gas conveying devices can convey oil gas to the oil gas mixing device under the action of the controller, or at least two oil gas conveying devices can convey oil gas to the oil gas mixing device under the action of the controller.
A second aspect of the present disclosure provides an oil and gas lubricated electric spindle assembly comprising: an electric spindle device; and the oil-air lubrication device provided by any embodiment of the first aspect, wherein the oil-air lubrication device can lubricate the electric spindle device.
Further preferably, the electric spindle is a ceramic spindle or a steel spindle, and the bearings are ceramic bearings. Of course, the plurality of bearings may also be steel bearings.
A third aspect of the present disclosure provides a control method for an oil-air lubricated electric spindle assembly, which is used for the oil-air lubricated electric spindle assembly provided in any one of the embodiments of the second aspect, wherein the method includes the following steps:
acquiring the temperature of the working environment of the electric spindle;
judging whether the temperature of the currently supplied oil-gas lubricating oil is matched with the temperature of the working environment of the electric spindle or not according to the temperature of the working environment of the electric spindle;
when the temperature of the currently supplied oil-gas lubricating oil is judged to be not suitable for the temperature of the working environment of the electric spindle, the oil-gas conveying device matched with the temperature of the working environment of the electric spindle is determined, the oil-gas conveying device for conveying the oil-gas lubricating oil to the oil-gas distributor is switched to be the matched oil-gas conveying device, and the matched oil-gas conveying device is controlled to convey the oil-gas lubricating oil to the oil-gas distributor.
Further, the method further comprises: and when the temperature of the oil-gas lubricating oil in the main shaft box is judged to be not suitable for the working condition environment where the main shaft box is located, controlling the first temperature regulating device and the second temperature regulating device of the currently working oil-gas conveying device to heat.
According to the control method of the oil-gas lubrication electric spindle assembly provided by the third aspect of the disclosure, when an experiment of an electric spindle such as a full-ceramic bearing electric spindle is performed, an oil-gas conveying device matched with an environment temperature can be automatically switched according to the current working environment temperature of the electric spindle to convey lubricating oil, so that automatic switching of oil-gas lubricating oil in different temperature ranges can be realized. Meanwhile, the automatic switching of the oil-gas conveying devices with different temperature ranges can realize automatic lubrication of a plurality of electric spindles at different experimental environment temperatures, so that the temperature range of the lubricating environment which can be adapted by the whole system can be enlarged, and wide-temperature-range lubrication is realized.
It should be understood that the statements herein reciting aspects are not intended to limit the critical or essential features of the embodiments of the present disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description.
Drawings
The above and other features, advantages and aspects of various embodiments of the present disclosure will become more apparent by referring to the following detailed description when taken in conjunction with the accompanying drawings. In the drawings, like or similar reference characters designate like or similar elements, and wherein:
FIG. 1 is a schematic structural diagram of an oil-air lubrication device provided by an embodiment of the invention;
FIG. 2 illustrates a schematic structural view of the oil and gas delivery device of FIG. 1;
FIG. 3 is a schematic structural diagram of an oil-air lubrication device according to another embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an oil-air lubrication device provided in a third embodiment of the present invention;
FIG. 5 is a schematic structural diagram of an oil-air lubrication device provided by an embodiment of the invention;
FIG. 6 illustrates a schematic structural diagram of an oil and gas lubricated electric spindle assembly provided by an embodiment of the present invention;
fig. 7 shows a flow chart of a control method of the oil-air lubricated electric spindle assembly provided by the embodiment of the invention.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 6 is:
1 oil-gas distributor, 12 output channels, 14 second temperature transmitters, 2 oil-gas conveying devices, 22 oil-gas mixing devices, 24 oil tank assemblies, 242 oil tanks, 2422 oil filling ports, 244 first temperature adjusting devices, 246 liquid level meters, 248 first temperature transmitters, 26 oil-way pipelines, 262 throttle valves, 264 flow meters, 266 pressure meters, 28 air-path assemblies, 280 air source triple parts, 282 two-position three-way electromagnetic valves, 284 safety valves, 286 second pressure regulating valves, 288 speed regulating valves, 289 second temperature adjusting devices, 292 first one-way valves, 294 second one-way valves, 3-branch controllers, 4 electric main shaft devices, 40 electric main shafts, 42 bearings, 44 main shaft shells and 46 connecting pipes.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are some, but not all embodiments of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
In addition, the term "and/or" herein is only one kind of association relationship describing an associated object, and means that there may be three kinds of relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
An oil-air lubrication device and an oil-air lubricated electric spindle assembly according to an embodiment of the present invention will be described with reference to fig. 1 to 6.
As shown in fig. 1 to 6, a first aspect of the present disclosure provides an oil and gas lubrication device including an oil and gas distributor 1, a plurality of oil and gas delivery devices 2, and a controller. Specifically, the method comprises the following steps:
the oil gas distributor 1 is provided with a plurality of output channels 12; the oil gas conveying devices 2 are communicated with the oil gas distributor 1 and are used for conveying oil gas into the oil gas distributor 1, and the oil gas conveying devices 2 can convey the oil gas in at least two temperature ranges; the controller is connected with the oil-gas distributor 1 and the plurality of oil-gas conveying devices 2 and is used for controlling the oil-gas distributor 1 and the plurality of oil-gas conveying devices 2 to work so as to adjust the working states of the plurality of oil-gas conveying devices 2 and the oil-gas temperature conveyed by the plurality of oil-gas conveying devices 2 and adjust the working states of the oil-gas distributor 1 and the output oil-gas temperature; each oil and gas conveying device 2 comprises an oil tank 242 and a gas circuit assembly 28, a first temperature adjusting device 244 connected with the controller is arranged in the oil tank 242, the first temperature adjusting device 244 is used for increasing or reducing the temperature of oil in the oil tank 242, and a second temperature adjusting device 289 connected with the controller is arranged on the gas circuit assembly 28.
According to the first aspect of the present disclosure, an oil-gas lubrication device mainly includes a plurality of oil-gas delivery devices 2, an oil-gas distributor 1 and a controller, wherein the oil-gas distributor 1 is configured to divide oil gas delivered from the plurality of oil-gas delivery devices 2 into multiple paths and supply the multiple paths of oil gas to bearings 42 and an electric spindle 40 which need to be lubricated, and the oil-gas distributor 1 is configured to realize equal or proportional distribution of oil gas, so as to reduce loss of oil-gas lubricating oil, and achieve an optimal oil supply amount to ensure effective lubrication of parts such as the bearings 42 and the electric spindle 40. And a plurality of oil gas delivery devices 2 are used for delivering oil gas to the oil gas distributor 1 after the oil gas is mixed. And a plurality of oil gas conveying device 2 can carry the oil gas of two at least temperature ranges, and a plurality of oil gas conveying device 2 can carry the oil gas of different temperatures promptly, utilizes oil gas conveying device 2 of difference just so can produce the oil gas lubricating oil under the different ambient temperature of adaptation, and then just can lubricate full ceramic bearing electricity main shaft etc. under the different experimental environment. And because each oil gas conveying device 2 all has the lubricated ambient temperature of its fixed adaptation, consequently, adopt a plurality of oil gas conveying devices 2 that can carry the oil gas of different temperatures, just can lubricate the full ceramic bearing electricity main shaft etc. of different experimental ambient temperatures. Different oil gas conveying devices 2 can be selected to carry out oil gas conveying according to the current actual experiment environment temperature when carrying out different full ceramic bearing electric main shafts experiments, so that oil gas lubricating oil with different temperatures can be generated to meet the current experiment environment temperature requirement, lubrication within a wider temperature range can be carried out by utilizing the same oil gas lubricating device, and lubrication of different full ceramic bearing electric main shafts is realized. Wherein, the controller is used for controlling the work of oil gas distributor 1 on the one hand to the realization is to the distribution control of lubricating oil, and on the other hand controller is used for carrying out the switching control between a plurality of oil gas delivery device 2 according to experimental environment temperature, so that can utilize different oil gas delivery device 2 to carry out the supply of oil gas lubricating oil under the different experimental environment, and what oil gas delivery device 2 work that just the controller is mainly used for controlling here, which oil gas delivery device 2 do not work, also control a plurality of oil gas delivery device 2's operating condition. Meanwhile, the controller is also used for controlling the air path control, the oil path control, the first temperature adjusting device 244, the second temperature adjusting device 289 and the like of each oil and gas conveying device 2, so that the adjustable air supply pressure, the controllable oil supply amount and the like of each oil and gas conveying device 2 can be realized. This kind of setting, a plurality of oil gas delivery device 2 can simultaneous working or the independent work under the effect of controller, and when specifically using, can switch over between the oil gas delivery device 2 of difference according to different experimental environment temperatures to can control the oil gas delivery device 2 of different temperature ranges and work, like this when experimental environment temperature is lower, just can control high temperature's oil gas delivery device 2 and work, so as to prevent that oil gas lubricating oil's temperature from crossing excessively and leading to lubricating oil to freeze. And when the experimental environment temperature is higher, the low-temperature oil-gas conveying device 2 can be controlled to work so as to supply oil-gas lubricating oil at a lower temperature, so that the full ceramic bearing electric spindle can be fully lubricated and cooled. Therefore, the lubrication at different environmental temperatures can be met, the lubrication under the working condition of a wider temperature range can be realized, and the effective lubrication and cooling of the full-ceramic bearing electric spindle under complex and multi-working conditions can be realized. In addition, because the lubricating system adopts an oil-gas lubricating mode, the lubricating system has a good lubricating effect on the bearing 42 of the electric main shaft 40 under the conditions of high temperature and high pressure, enhances the oil film strength of the lubricating surface of the bearing 42, prolongs the service life of the bearing 42 and reduces the environmental pollution.
In addition, according to the scheme, because the first temperature adjusting device 244 connected with the controller is further arranged in the oil tank 242, when the oil-gas lubricating oil is supplied by the oil-gas conveying device 2, the temperature of the oil in the oil tank 242 can be increased or decreased by the first temperature adjusting device 244, or the temperature of the gas is heated by the second temperature adjusting device 289 arranged on the gas circuit component 28, so that the temperature range of lubrication which can be applied to a single oil-gas conveying device 2 can be further expanded, the lubrication of each oil-gas conveying device 2 in a wider temperature range is realized, and the experimental environment temperature which can be adapted to the whole lubricating system can be further increased, so that the lubricating temperature range which can be adapted to the whole lubricating system is expanded.
Further preferably, the oil-gas lubrication device is an all-ceramic bearing electric main shaft oil-gas lubrication device, and the oil-gas lubrication device is used for performing oil-gas lubrication on the all-ceramic bearing electric main shaft.
Further preferably, as shown in fig. 2, each of the oil and gas delivery devices 2 further comprises an oil and gas mixing device 22, a tank assembly 24, an oil conduit 26 and an air conduit assembly 28, wherein,
the oil tank assembly 24 comprises an oil tank 242, a pneumatic oil filling pump arranged in the oil tank 242, a first temperature adjusting device 244, a liquid level meter 246 and a first temperature transmitter 248, wherein the first temperature transmitter 248 is used for detecting the oil temperature in the oil tank 242 and feeding the oil temperature in the oil tank 242 back to a controller in an electric signal mode, and an oil filling opening 2422 is formed above the oil tank 242;
the oil pipeline 26 is connected between the outlet of the pneumatic oil filling pump and the inlet of the oil-gas mixing device 22, and one or more of a first pressure regulating valve, a throttle valve 262 and a flow meter 264 are arranged on the oil pipeline 26;
the air path assembly 28 comprises a water diversion filter and a filtering pressure reducing valve which are sequentially communicated in series, wherein the water diversion filter and the filtering pressure reducing valve are both parts in the air source triple piece 280 or the air source double piece, the inlet of the water diversion filter is connected with an air inlet source, the outlet of the filtering pressure reducing valve is communicated with two air flow branches, the first air flow branch of the two air flow branches is sequentially connected with the inlet of the oil-gas mixing device 22 through a second pressure regulating valve 286 and a speed regulating valve 288, the second air flow branch of the two air flow branches is communicated with the air inlet of the pneumatic oil injection pump, and a second temperature regulating device 289 is respectively arranged on each of the two air flow branches or a second temperature regulating device 289 is arranged at the outlet of the filtering pressure reducing valve; wherein, the controller is connected with the pneumatic oil filling pump, the first temperature adjusting device 244, the liquid level meter 246, the first temperature transmitter 248, the first pressure adjusting valve, the throttle valve 262 and the flow meter 264 of each oil gas conveying device 2.
In this embodiment, each oil and gas delivery device 2 further includes an oil and gas mixing device 22, a tank assembly 24, an oil pipeline 26 and an oil pipeline assembly 28, wherein the oil and gas mixing device 22 is used for realizing oil and gas mixing and inputting the mixed oil and gas to the oil and gas distributor 1. The oil tank assembly 24 includes an oil tank 242, external oil can be added to the oil tank 242 through a filling port 2422 above the oil tank 242, and a pneumatic oil pump in the oil tank 242 pumps the oil in the oil tank 242 to the oil line 26 under the pressure of the gas branched from the gas circuit assembly 28 and then delivers the oil to the oil-gas mixing device 22 through the oil line 26, thereby achieving the delivery of the lubricating oil. Meanwhile, one or more of a first pressure-regulating valve, a throttle 262, and a flow meter 264 may be specifically provided on the oil conduit 26 so as to enable pressure and flow rate and speed regulation and monitoring of the oil within the oil conduit 26. When the flow rate of the lubricating oil fed back by the flow meter 264 does not meet the requirement, the oil passing frequency can be changed by changing the throttling surface of the throttling valve 262 until the required flow rate is reached, the flow rate of the lubricating oil is monitored in real time by the flow meter 264 and the pressure gauge 266, and the electric spindle 40 can be fully lubricated during operation by monitoring the pressure and compensating the flow rate. And the first temperature adjusting device 244 is used to heat or cool the lubricating oil under the action of the controller so as to be able to increase or decrease the temperature of the lubricating oil. The liquid level meter 246 is used for detecting the oil quantity in the oil tank 242 so as to monitor the oil quantity from time to time, and therefore an alarm can be triggered when the oil quantity is in shortage or excess, so that the oil quantity in the oil tank 242 can be monitored in real time through the liquid level meter 246, and effective lubrication is guaranteed when the main shaft runs; and the first temperature transmitter 248 is used for detecting the oil temperature in the oil tank 242 and feeding back the oil temperature in the oil tank 242 to the controller in an electric signal manner, so that the temperature of the lubricating oil can be monitored and fed back from time to time, and the controller can accurately control the lubricating temperature of the system. The air path assembly 28 comprises an air source triple piece 280 or an air source two-way piece connected with an air source, the air source triple piece 280 comprises a water distribution filter, a filtering pressure reducing valve and an oil atomizer which are sequentially communicated in series, the water distribution filter can dry air firstly, the filtering pressure reducing valve can limit air pressure, and the air source triple piece 280 only comprises the water distribution filter and the filtering pressure reducing valve and does not comprise the oil atomizer. The air source sequentially passes through the air source triple piece 280 or the air source two-link piece and then is communicated with the two air flow branch lines through the two-position three-way solenoid valve 282 or the safety valve 284, wherein the first air flow branch line sequentially passes through the second pressure regulating valve 286 and the speed regulating valve 288 to be connected with the inlet of the oil-gas mixing device 22, so that a part of air can be conveyed to the oil-gas mixing device 22, and oil and gas can be mixed to generate oil-gas lubricating oil. The second pressure regulating valve 286 and the speed regulating valve 288 are mainly used for controlling air pressure and flow rate, for example, when the flow rate of the lubricating oil is found not to meet the required flow rate, the oil passing frequency can be changed by the speed regulating valve 288 until the required flow rate is reached, the flow rate of the lubricating oil is monitored in real time by the flow meter 264 and the pressure gauge 266, and sufficient lubrication can be ensured when the electric spindle 40 operates by monitoring pressure and compensating flow rate. When the air pressure is higher than the required pressure, the second pressure regulating valve 286 and the speed regulating valve 288 can be automatically opened by the controller until the required pressure is reached; when the air pressure is lower than the required pressure, the second pressure regulating valve 286 and the speed regulating valve 288 can be automatically closed by the controller, and the real-time pressure value is fed back to the control system and compensated until the required pressure is reached. And the other gas flow branch, i.e., the second gas flow branch, is communicated with the gas inlet of the pneumatic oil filling pump so as to be capable of delivering sufficient gas to the pneumatic oil filling pump, thereby realizing pneumatic starting of the pneumatic oil filling pump, so that the pneumatic oil filling pump can deliver the oil in the oil tank 242 to the oil-gas mixing device 22 through the oil-gas pipeline under the action of the gas delivered by the other gas flow branch. And a second temperature adjustment device 289 may be provided on both gas flow branches to achieve gas heating of each branch. Of course, the second temperature adjustment device 289 may also be disposed before the two air flow branches, for example, at an outlet of the filtering and pressure reducing valve, that is, the air path may be heated by the second temperature adjustment device 289 and then divided. The controller can be connected with the pneumatic oil filling pump, the first temperature adjusting device 244, the liquid level meter 246, the first temperature transmitter 248, the first pressure adjusting valve, the throttle valve 262 and the flow meter 264 of each oil-gas conveying device 2, so that the air pressure of the pneumatic oil filling pump and the state of the relevant valves or the parameters of detection elements such as the first temperature transmitters 248 and the flow meter 264 can be monitored at any time, the whole system can be controlled and allocated at any time according to the working parameters of the whole oil-gas lubricating device, the functions of monitoring the air pressure, the lubricating oil pressure, the dynamic change of each valve, the oil-gas temperature and the like at any time can be realized, and the functions of temperature control, over-temperature over-pressure automatic early warning, oil cut-off protection and the like can be realized.
On the basis of any of the above solutions, the fuel tank assembly 24 further includes: an oil filter provided in the oil tank 242; and an oil pressure gauge disposed in the oil tank 242, connected to the controller, for detecting the oil pressure in the oil tank 242 and feeding back the detection result to the controller.
In such embodiments, the oil filter is used to filter oil added to the tank 242, thereby ensuring that the oil added to the tank 242 is clean. The oil pressure gauge is used for detecting the oil pressure in the mailbox so as to control the oil pressure added into the mixing chamber.
On the basis of any scheme, as shown in fig. 1 and fig. 2, a two-position three-way electromagnetic valve connected with a controller is arranged at an outlet of the filtering and pressure reducing valve, the two-position three-way electromagnetic valve is provided with two outlets, the two outlets of the two-position three-way electromagnetic valve are respectively communicated with two air flow branches, and the two outlets of the two-position three-way electromagnetic valve can be connected or communicated with an inlet of the two-position three-way electromagnetic valve under the action of the controller, or as shown in fig. 3 and fig. 4, a safety valve 284 connected with the controller is arranged at the outlet of the filtering and pressure reducing valve, and an outlet of the.
In this embodiment, a two-position three-way solenoid valve or a safety valve 284 may be disposed at an outlet of the filtering and pressure reducing valve, wherein the two-position three-way solenoid valve is used to divide the gas path into two branches and is used to enable the two branches to be conducted only one at the same time, specifically, the controller may be used to control the power-on and power-on states of the two-position three-way solenoid valve, so that the first gas path branch is firstly communicated with the gas inlet source, and thus, gas can be input into the oil-gas mixing device 22, and after the gas input is completed, the working state of the two-position three-way solenoid valve is switched to enable the second gas path to be communicated with the gas inlet source. This kind of set up air-oil mixing device 22 and ventilate earlier and can discharge remaining air in air-oil mixing device 22 and the first branch road in advance, prevent that remaining air is more moist in air-oil mixing device 22 and the first branch road, and influence lubricated effect.
Of course, in another embodiment, as shown in fig. 4, a safety valve 284 may be disposed at the outlet of the gas source triplet 280 or the gas source doublet, and the gas branch may be divided into two paths at the outlet of the safety valve 284. At this time, the relief valve 284 mainly functions to cut off and conduct the origin of intake air, that is, the relief valve 284 here mainly functions as a relief switch. In this case, the two gas path branches are simultaneously conducted and closed, so that synchronous gas and lubricating oil delivery can be realized. In this embodiment, the second temperature control device 289 may be disposed at the outlet of the safety valve 284 before the gas is split, so that the gas can be uniformly heated and then split. Of course, a second temperature adjustment device 289 may be provided on each of the two gas flow branches, so that separate heating of the gas on each gas flow branch may be achieved.
Further preferably, as shown in fig. 3 and 4, the relief valve 284 is preferably a two-position, two-way solenoid valve.
As shown in fig. 1, 2 and 5, in the embodiment in which the air path assembly 28 is provided with the two-position three-way electromagnetic valve, the working process of each oil and gas delivery device 2 is as follows: before starting ventilation, the pilot leads the inlet and the first outlet of the two-position three-way solenoid valve 282 to close the inlet and the second outlet of the two-position three-way solenoid valve 282, so that the compressed air at the air source can firstly pass through the water separation filter to form dry compressed air, then sequentially passes through the filtering and pressure reducing valve and the oil atomizer to enter the two-position three-way solenoid valve 282, then passes through the first outlet of the two-position three-way solenoid valve 282, directly passes through the second pressure regulating valve 286 and the speed regulating valve 288 to regulate and reduce the pressure, and then is sent to the oil-gas mixing device 22, so that the oil-gas mixing device 22 is in a low-. Then, the valve of the first outlet may be closed to disconnect the inlet of the two-position three-way solenoid valve 282 from the first outlet, and the valve of the second outlet may be opened to connect the inlet of the two-position three-way solenoid valve 282 with the second outlet, so that the compressed air from the air source is sent to the pneumatic oil injection pump through the water division filter, the filtering pressure reducing valve, and the oil mist sprayer and then through the second outlet of the two-position three-way solenoid valve 282, so as to start the pneumatic oil injection pump. And the oil in the oil tank 242 is pumped by the pneumatic oil filling pump through the oil line 26 directly into the air-oil mixing device 22. Meanwhile, one or more of a first pressure-regulating valve, a throttle 262, and a flow meter 264 may be provided on the oil conduit 26 to enable pressure and speed control of the oil within the oil conduit 26, and monitoring of the pressure and flow rate.
Preferably, the controller is provided with a plurality of mechanical equipment control connection interfaces, and the pneumatic oil filling pump, the first temperature regulating device 244, the liquid level meter 246, the first temperature transmitter 248, the first pressure regulating valve, the throttle valve 262, the flow meter 264, the two-position three-way solenoid valve 282 and other parts of each oil and gas delivery device 2 can be connected with the controller through the connection interfaces.
Specifically, the controller is provided with programs such as oil circuit control, gas circuit control, temperature control and valve element control, and during specific control, the control of the oil circuit, the gas circuit, the temperature and the valve element can be realized according to the programs arranged on the controller.
It is further preferred that, as shown in fig. 1, 2 and 4, a first check valve 292 is disposed on each of the two gas branches, so as to prevent gas from flowing back through the two gas branches.
Further preferably, as shown in fig. 1 to 4, a second check valve 294 is provided at the oil inlet and the air inlet of the oil-air mixing device 22, respectively, so that oil and air entering the oil-air mixing device 22 can be prevented from flowing back.
On the basis of any scheme, the oil gas conveying devices 2 comprise at least one high-temperature oil gas conveying device 2 and at least one low-temperature oil gas conveying device 2, and the oil gas temperature range supplied by the high-temperature oil gas conveying device 2 is larger than the oil gas temperature range supplied by the low-temperature oil gas conveying device 2. Preferably, the temperature range of the oil gas supplied by the high-temperature oil gas conveying device 2 is greater than or equal to 75 ℃ and less than or equal to 200 ℃, and the temperature range of the oil gas supplied by the low-temperature oil gas conveying device 2 is greater than or equal to minus 50 ℃ and less than or equal to 50 ℃.
In such embodiments, as shown in fig. 1, 3, and 4, the plurality of oil and gas delivery devices 2 includes at least one high temperature oil and gas delivery device 2, such as the left oil and gas delivery device 2 of fig. 1, 3, and 4, and the plurality of oil and gas delivery devices 2 further includes at least one low temperature oil and gas delivery device 2, such as the right oil and gas delivery device 2 of fig. 1, 3, and 4, and the high temperature oil and gas delivery device 2 of the left side of fig. 1, 3, and 4 is used to deliver higher temperature oil and gas to produce higher temperature oil and gas lubrication oil, such as 75 ℃ to 200 ℃ oil and gas lubrication for the all ceramic electric spindle 40 with lower experimental temperature, preferably, the high temperature oil and gas delivery device 2 is used to produce 100 ℃ to 175 ℃ oil and gas lubrication. And the low-temperature oil-gas conveying device 2 on the right side in fig. 1, 3 and 4 is used for conveying oil gas at a lower temperature to generate oil-gas lubricating oil at a lower temperature, for example, oil-gas lubricating oil at minus 50 ℃ to lubricate the all-ceramic electric spindle 40 at a higher experimental temperature. Of course, in the actual process, can specifically set for the temperature that every oil gas transmission device 2 carried oil gas lubricating oil according to the experimental temperature of the full ceramic electric main shaft 40 that needs the experiment, and when the experimental temperature span of the full ceramic electric main shaft 40 that needs the experiment is bigger, can all set up great difference with the temperature that every oil gas transmission device 2 carried oil gas lubricating oil, just so can come the real temperature that enlarges whole system and can lubricate through a plurality of oil gas transmission device 2 to enlarge the experimental environment temperature that whole system can be applicable to when lubricated.
On the basis of any one of the above schemes, the at least two temperature ranges include a first temperature range and a second temperature range, wherein the first temperature range is greater than or equal to 75 ℃ and less than or equal to 200 ℃, and the second temperature range is greater than or equal to minus 50 ℃ and less than or equal to 50 ℃. The entire system can thus lubricate the test environment temperature adapted to the first temperature range and the second temperature range at the same time.
On the basis of any one of the above schemes, a display panel is arranged on the controller and used for displaying the working state and the working parameters of the oil-gas distributor 1 and the working states and the working parameters of the oil-gas conveying devices 2.
In these embodiments, the display panel is used to monitor and display the operating status and parameters of the oil gas distributor 1 and the operating status and parameters of the plurality of oil gas delivery devices 2 in real time. Specifically, for example, the display panel may display the air pressure and the temperature of the air path assembly 28 to achieve the automatic over-temperature and over-pressure warning of the air path assembly 28, or display the oil quantity, the temperature and the pressure of the oil tank 242 to achieve the automatic over-temperature and over-pressure warning function and the oil cut protection function of the oil tank assembly 24.
Preferably, the number of the output channels 12 is 4 to 8, and further preferably, as shown in fig. 1, 3 and 4, the number of the output channels 12 is 5.
On the basis of any of the above schemes, as shown in fig. 1, 3 and 4, each output channel 12 is further provided with a second temperature transmitter 14, and the second temperature transmitter 14 is configured to detect the oil temperature in its corresponding output channel 12 and feed back the detected oil temperature to the controller in the form of an electrical signal.
In this embodiment, by providing a second temperature transmitter 14 on output channels 12, monitoring and feedback of the temperature of the hydrocarbon within output channels 12 can be achieved, thereby facilitating more precise control of the temperature of the hydrocarbon and ensuring consistency of the temperature on each output channel 12.
On the basis of any scheme, as shown in fig. 1 to 4, a pressure gauge 266 is further disposed on the oil conduit 26, the pressure gauge 266 is used for detecting the pressure in the oil conduit 26, and the controller is further connected to the pressure gauge 266.
In these embodiments, a bypass may be provided on oil conduit 26, and pressure gauge 266 may be disposed on the bypass of oil conduit 26, or pressure gauge 266 may be connected directly in series to the main line of oil conduit 26 without the bypass.
On the basis of any scheme, the oil gas distributor 1 is connected with the controller, and can equally distribute oil gas to the plurality of output channels 12 or proportionally distribute oil gas to the plurality of output channels 12 under the action of the controller.
In the embodiments, the oil-gas distributor 1 may perform equal-amount even distribution or may not perform even distribution according to a certain batch when performing specific distribution, and the specific distribution scheme may be set according to the actual lubrication condition environment.
On the basis of any one of the above schemes, the oil-gas lubrication device further comprises an alarm device connected with the controller, and the alarm device is used for giving an alarm when the oil-gas lubrication device is abnormal.
In these embodiments, the alarm device may give an alarm when the whole system is running, for example, when the oil in the oil tank 242 is insufficient or excessive, or when the oil in the headstock or the temperature is abnormal, so as to ensure effective lubrication and achieve automatic over-temperature warning when the main spindle is running, or when the pressure on the air path assembly 28 is abnormal or the pressure on the oil path pipe 26 is abnormal.
On the basis of any one of the above schemes, the controller comprises: the branch controllers 3 are connected with the oil-gas conveying devices 2 in a one-to-one correspondence manner, and the branch controllers 3 are connected with the oil-gas conveying devices 2 on the corresponding branches and control the oil-gas conveying devices 2 on the corresponding branches to work; and the main controller (not shown in the figure) is connected with the branch controllers 3 and the oil-gas distributor 1 and is used for controlling the work of the branch controllers 3 and the oil-gas distributor 1.
In these embodiments, an independent branch controller 3 may be provided for each oil and gas delivery device 2 to control each oil and gas delivery device 2, and then a master controller (not shown in the figure) is provided to perform overall control, and this arrangement enables control of each branch to be performed by a plurality of branch controllers 3 without centralizing all control processes, so that the control workload can be shared to reduce the workload of a single controller. Of course, in another embodiment, the branch controller 3 may not be provided for each oil and gas delivery device 2, but the overall control may be directly implemented by an integrated controller. The form of the controller can be set according to actual needs.
On the basis of any scheme, the controller can control the oil-gas conveying devices 2 with different temperature ranges to convey oil gas for the oil-gas mixing device 22 according to the temperature of the required oil gas, and simultaneously control the first temperature adjusting device 244 and the second temperature adjusting device 289 corresponding to the oil-gas conveying devices 2 to adjust the temperature of the oil gas; wherein, a plurality of oil gas delivery devices 2 can be under the effect of controller alone to the oil gas mixing device 22 transport oil gas, or at least two oil gas delivery devices 2 can be under the effect of controller together to the oil gas mixing device 22 transport oil gas.
In these embodiments, the controller can come for oil gas mixing device 22 transport oil gas according to the different temperature range's of the temperature control oil gas transmission device 2 of required oil gas, just so can select to open different oil gas transmission device 2 and carry out oil gas transport according to current operating mode, for example, when the controller judges that the temperature of current oil gas lubricating oil is less than current experimental environment temperature, alright the higher oil gas transmission device 2 of temperature range carries out oil gas transport, and when the controller judges that the temperature of current oil gas lubricating oil is higher than current experimental environment temperature, alright the lower oil gas transmission device 2 of temperature range carries out oil gas transport, the controller can carry out switching control between the height oil gas transmission device 2 according to actual need here promptly. Meanwhile, in the actual process, the first temperature adjusting device 244 and the second temperature adjusting device 289 corresponding to the oil gas conveying device 2 can be timely turned on or turned off according to needs, so that the oil gas temperature can be adjusted by the first temperature adjusting device 244 and the second temperature adjusting device 289, and the temperature can be compensated.
Wherein, in actual process, the controller can control a plurality of oil gas transmission device 2 according to actual need and carry oil gas to oil gas mixing arrangement 22 alone, and a plurality of oil gas transmission device 2 are independent work respectively promptly. Of course, the controller can also control two or three or more oil-gas conveying devices 2 to convey oil gas together with the oil-gas mixing device 22 according to actual needs, at the moment, the oil-gas conveying devices 2 work in a coordinated mode, and then the temperature of lubricating oil is matched together.
On the basis of any scheme, the oil-gas lubrication device comprises a shell, oil tanks 242 of a plurality of oil-gas conveying devices 2 are arranged above the shell, and other parts of the oil-gas lubrication device can be arranged in the shell or arranged outside the shell according to actual needs. And the setting of shell makes each spare part of oil-gas lubrication device can assemble into a whole to convenient transportation, accomodate and install.
As shown in fig. 5 and 6, a second aspect of the present disclosure provides an oil-air lubricated electric spindle assembly including: an electric spindle device 4, the electric spindle device 4 comprising an electric spindle 40 and a plurality of bearings 42 for mounting the electric spindle 40; and the oil-air lubrication device provided by any embodiment of the first aspect, wherein the oil-air lubrication device can lubricate the electric spindle device 4.
According to the present invention there is provided an oil and gas lubricated electric spindle assembly comprising an electric spindle unit 4 and an oil and gas lubrication unit of the first aspect. The electric spindle device 4 is used for being connected with an external load or an external driving structure, and realizing the driving of the load or receiving the driving of the external driving structure. During the experiment, different electric spindles 40 can be selected according to the experiment requirement to perform the corresponding experiment of the electric spindles 40. Meanwhile, since the oil-air lubricated electric spindle assembly provided by the embodiment of the present invention includes the oil-air lubricating device provided by any one of the embodiments of the first aspect, that is, the oil-air lubricated electric spindle assembly provided by the embodiment of the present invention can use the oil-air lubricating device to lubricate the electric spindle 40, the oil-air lubricated electric spindle assembly also has all the beneficial effects of the oil-air lubricating device provided by any one of the embodiments of the first aspect. Are not listed here.
Further preferably, the electric spindle 40 is a ceramic spindle or a steel spindle, and the plurality of bearings 42 are all ceramic bearings. Of course, the plurality of bearings 42 may also be steel bearings.
Further preferably, as shown in fig. 6, the electric spindle device 4 further includes a spindle housing 44 and a connecting pipe 46, wherein the electric spindle 40 and the bearing 42 are both installed in the spindle housing 44, and the spindle housing 44 is provided with an oil inlet hole, and the oil inlet hole is connected with the output channel 12 of the distributor through the connecting pipe 46.
In one embodiment, the number of the plurality of oil-gas delivery devices 2 is two, and therefore, the number of the oil tanks 242 is also two, and as shown in fig. 5, two oil tanks 242 may preferably be respectively fixed above the housing of the oil-gas lubrication device, and the volume of the two oil tanks 242 is preferably 8L. The pneumatic oil injection pump preferably selects an oil pump which can extrude 180ml-190ml of oil with adjustable oil quantity once per action and has the viscosity range of 5mm2/s-5000mm 2/s. Meanwhile, the air pressure of the air source can be 0.2MPa-0.4MPa, the air pressure of the air flow branch conveyed to the oil-gas mixing device 22 is preferably 0.2MPa-0.3MPa after passing through a filtering and pressure reducing valve, and the output channel 12 of the oil-gas distributor 1 is preferably 0.25ml of oil at a time. In one embodiment, the temperature of the oil in the oil tank 242 controlled by the first temperature control device 244 may reach 150-200 ℃. After passing through the flow meter 264 and the throttle 262, the lubricating oil is fed into the oil-gas mixing chamber with the oil supply flow rate of 0.18-0.19L/min and the oil supply pressure of 0.25-0.27 MPa.
As shown in fig. 7, a third aspect of the present disclosure provides a control method of an oil-air lubricated electric spindle assembly for use in the oil-air lubricated electric spindle assembly provided in any one of the embodiments of the second aspect, wherein the method includes the steps of:
s102, acquiring the temperature of the working environment of the electric spindle;
s104, judging whether the temperature of the currently supplied oil-gas lubricating oil is matched with the temperature of the working environment of the electric spindle or not according to the temperature of the working environment of the electric spindle;
s106, when the temperature of the currently supplied oil-gas lubricating oil is judged to be not suitable for the temperature of the working environment of the electric spindle, the oil-gas conveying device matched with the temperature of the working environment of the electric spindle is determined, the oil-gas conveying device for conveying the oil-gas lubricating oil to the oil-gas distributor is switched to be the matched oil-gas conveying device, and the matched oil-gas conveying device is controlled to convey the oil-gas lubricating oil to the oil-gas distributor.
Further, the method further comprises: when the temperature of the oil-gas lubricating oil in the spindle box is judged to be not suitable for the working condition environment where the spindle box is located, the first temperature regulating device and the second temperature regulating device of the currently-working oil-gas conveying device are controlled to work, specifically, for example, the first temperature regulating device is controlled to heat or cool the lubricating oil, or the second temperature regulating device is controlled to heat or cool the gas.
According to the control method of the oil-gas lubricated electric spindle assembly provided by the invention, when an experiment of the electric spindle of the all-ceramic bearing electric spindle is carried out, oil-gas conveying devices with different temperature ranges can be controlled according to the current working environment temperature of the electric spindle to convey oil-gas lubricating oil to the oil-gas distributor, so that different oil-gas conveying devices can be selected to be started to convey oil gas according to the current actual environment temperature, for example, when the controller judges that the current oil-gas lubricating oil temperature is lower than the oil-gas lubricating oil temperature required by the current working environment of the electric spindle, the oil-gas conveying device with a higher temperature range can be selected to convey oil gas, and when the controller judges that the current oil-gas lubricating oil temperature is higher than the oil-gas lubricating oil temperature required by the current working environment of the electric spindle, the oil-gas conveying device with a lower temperature range can be selected to convey oil gas, namely, the controller can carry out switching control between the oil-gas conveying devices according to the temperature of the oil-gas lubricating oil required by the actual environment. Meanwhile, in the actual process, the first temperature regulating device and the second temperature regulating device corresponding to the oil-gas conveying device can be timely opened or closed according to needs, so that the oil-gas temperature can be regulated through the first temperature regulating device and the second temperature regulating device, the temperature compensation is realized, and the temperature of the lubricating oil can reach the optimal lubricating point of the environment temperature. And preferably, when the temperature of the lubricating oil is judged to be not suitable for the temperature of the working environment of the electric spindle, the oil-gas temperature is preferably adjusted through the first temperature adjusting device and the second temperature adjusting device so as to realize temperature compensation, and when the oil-gas temperature cannot be adjusted through the first temperature adjusting device and the second temperature adjusting device so as to realize temperature compensation, switching of the oil-gas conveying devices is considered.
Wherein, in actual process, the controller can control a plurality of oil gas delivery devices according to actual need and carry oil gas to the oil gas mixing arrangement alone, a plurality of oil gas delivery devices work independently respectively promptly. Of course, the controller can also control two or three or more oil-gas conveying devices to convey oil gas together according to actual needs, at the moment, the oil-gas conveying devices work in a coordinated mode, and then the temperature of lubricating oil is jointly adjusted.
In the description of the present specification, the terms "connect", "mount", "fix", and the like are to be understood in a broad sense, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In the description of the present application, the description of the terms "one embodiment," "some embodiments," etc. means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. An oil-air lubrication device, includes the oil-air distributor, the oil-air distributor has a plurality of delivery channels, its characterized in that, the oil-air lubrication device still includes:
the oil gas conveying devices are communicated with the oil gas distributor and used for conveying oil gas into the oil gas distributor, and the oil gas conveying devices can convey the oil gas in at least two temperature ranges;
the controller is connected with the oil-gas distributor and the oil-gas conveying devices and is used for controlling the oil-gas distributor and the oil-gas conveying devices to work so as to adjust the working states of the oil-gas conveying devices and the oil-gas temperature conveyed by the oil-gas conveying devices and adjust the working states of the oil-gas distributor and the output oil-gas temperature;
each oil gas conveying device comprises an oil tank and a gas circuit component, a first temperature adjusting device connected with the controller is arranged in the oil tank, the first temperature adjusting device is used for increasing or decreasing the temperature of oil in the oil tank, and a second temperature adjusting device connected with the controller is arranged on the gas circuit component.
2. The oil and gas lubrication device according to claim 1, wherein each of said oil and gas delivery devices further comprises:
an oil-gas mixing device;
the oil tank assembly comprises an oil tank, a pneumatic oil filling pump, a first temperature adjusting device, a liquid level meter and a first temperature transmitter, wherein the pneumatic oil filling pump, the first temperature adjusting device, the liquid level meter and the first temperature transmitter are arranged in the oil tank;
the oil pipeline is connected between the outlet of the pneumatic oil filling pump and the inlet of the oil-gas mixing device, and one or more of a first pressure regulating valve, a throttle valve and a flowmeter are arranged on the oil pipeline;
the air path assembly comprises a water diversion filter and a filtering pressure reducing valve which are sequentially communicated in series, an inlet of the water diversion filter is connected with an air inlet source, an outlet of the filtering pressure reducing valve is communicated with two air flow branches, a first air flow branch of the two air flow branches is sequentially connected with an inlet of the oil-gas mixing device through a second pressure regulating valve and a speed regulating valve, a second air flow branch of the two air flow branches is communicated with an air inlet of the pneumatic oil injection pump, and a second temperature regulating device is arranged at an outlet of the second temperature regulating device or an outlet of the filtering pressure reducing valve on each of the two air flow branches;
the controller is connected with the pneumatic oil injection pump, the first temperature adjusting device, the liquid level meter, the first temperature transmitter, the first pressure adjusting valve, the throttle valve and the flow meter of each oil and gas conveying device.
3. The oil and gas lubrication device as recited in claim 2, wherein said tank assembly further comprises:
an oil filter disposed within the oil tank;
and the oil pressure gauge is arranged in the oil tank, is connected with the controller and is used for detecting the oil pressure in the oil tank and feeding back the detection result to the controller.
4. The oil-air lubrication device according to claim 2,
a two-position three-way electromagnetic valve connected with the controller is arranged at an outlet of the filtering and reducing valve, the two-position three-way electromagnetic valve is provided with two outlets, the two outlets of the two-position three-way electromagnetic valve are correspondingly communicated with the two airflow branches one by one, the two outlets of the two-position three-way electromagnetic valve can be connected or communicated with an inlet of the two-position three-way electromagnetic valve under the action of the controller, or a safety valve connected with the controller is arranged at the outlet of the filtering and reducing valve, and the outlet of the safety valve is communicated with the two airflow branches; and/or
The oil gas conveying devices comprise at least one high-temperature oil gas conveying device and at least one low-temperature oil gas conveying device, and the temperature range of oil gas supplied by the high-temperature oil gas conveying device is larger than that of oil gas supplied by the low-temperature oil gas conveying device; and/or
The at least two temperature ranges include a first temperature range and a second temperature range, wherein the first temperature range is greater than or equal to 75 ℃ and less than or equal to 200 ℃, and the second temperature range is greater than or equal to minus 50 ℃ and less than or equal to 50 ℃.
5. The oil-air lubrication device according to claim 2,
the controller is provided with a display panel, and the display panel is used for displaying the working state and the working parameters of the oil-gas distributor and the working states and the working parameters of the oil-gas conveying devices; and/or
The number of the output channels is 4 to 8; and/or
Each output channel is also provided with a second temperature transmitter, and the second temperature transmitter is used for detecting the oil temperature in the corresponding output channel and feeding the detected oil temperature back to the controller in an electric signal manner; and/or
The oil pipeline is also provided with a pressure gauge, the pressure gauge is used for detecting the pressure in the oil pipeline, and the controller is also connected with the pressure gauge; and/or
The oil-gas lubricating device also comprises an alarm device connected with the controller, and the alarm device is used for giving an alarm when the oil-gas lubricating device is abnormal; and/or
The oil gas distributor is connected with the controller and can equally distribute oil gas to the plurality of output channels or proportionally distribute the oil gas to the plurality of output channels under the action of the controller.
6. The oil and gas lubrication device according to any one of claims 1 to 5, wherein the controller comprises:
the branch controllers are connected with the oil-gas conveying devices on the corresponding branches in a one-to-one correspondence manner, and control the oil-gas conveying devices on the corresponding branches to work;
and the master controller is connected with the branch controllers and the oil-gas distributor and is used for controlling the work of the branch controllers and the oil-gas distributor.
7. The oil-gas lubrication device according to any one of claims 1 to 5,
the controller can control the oil-gas conveying devices with different temperature ranges according to the temperature of the required oil gas to convey the oil gas for the oil-gas mixing device, and simultaneously control the first temperature regulating device and the second temperature regulating device corresponding to the oil-gas conveying devices to regulate the temperature of the oil gas;
the oil gas conveying devices can convey oil gas to the oil gas mixing device under the action of the controller, or at least two oil gas conveying devices can convey oil gas to the oil gas mixing device under the action of the controller.
8. An oil and gas lubricated electric spindle assembly, comprising:
an electric spindle device comprising an electric spindle and a plurality of bearings mounting the electric spindle;
the oil-air lubrication device according to any one of claims 1 to 7, which is capable of lubricating the electric spindle device.
9. The oil and gas lubricated electric spindle assembly according to claim 8,
the electric main shaft is a ceramic main shaft or a steel main shaft, and the bearings are ceramic bearings.
10. A method of controlling an oil-air lubricated electric spindle assembly for use in an oil-air lubricated electric spindle assembly according to claim 8 or 9, the method comprising:
acquiring the temperature of the working environment of the electric spindle;
judging whether the temperature of the currently supplied oil-gas lubricating oil is matched with the temperature of the working environment of the electric spindle or not according to the temperature of the working environment of the electric spindle;
when the temperature of the currently supplied oil-gas lubricating oil is judged to be not suitable for the temperature of the working environment of the electric spindle, the oil-gas conveying device matched with the temperature of the working environment of the electric spindle is determined, the oil-gas conveying device for conveying the oil-gas lubricating oil to the oil-gas distributor is switched to be the matched oil-gas conveying device, and the matched oil-gas conveying device is controlled to convey the oil-gas lubricating oil to the oil-gas distributor.
CN202010019846.5A 2020-01-07 2020-01-07 Oil-gas lubricating device, oil-gas lubricating electric spindle assembly and control method thereof Active CN111188982B (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201215243Y (en) * 2008-07-04 2009-04-01 段修英 Oil and gas lubricant distributor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201215243Y (en) * 2008-07-04 2009-04-01 段修英 Oil and gas lubricant distributor

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