CN208099950U - Machine tool chief axis cooling system - Google Patents
Machine tool chief axis cooling system Download PDFInfo
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- CN208099950U CN208099950U CN201820235457.4U CN201820235457U CN208099950U CN 208099950 U CN208099950 U CN 208099950U CN 201820235457 U CN201820235457 U CN 201820235457U CN 208099950 U CN208099950 U CN 208099950U
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- oil
- fuel tank
- cooling
- machine tool
- pump group
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Abstract
The utility model discloses a kind of machine tool chief axis cooling systems, wherein：Including fuel tank and it is set to the oil absorption filter of fuel tank internal, the upper surface of the fuel tank is provided with motor pump group, air blast cooling but device and oil syringe, and the fuel tank side is provided with liquidometer；The motor pump group is connected with oil absorption filter；But device is electrically connected for the fuel tank, oil absorption filter, motor pump group and air blast cooling.It can satisfy general requirement, while at low cost, easy to maintain.
Description
Technical field
The utility model relates to a kind of machine tool chief axis cooling systems.
Background technique
Fluid Transmission and Control technology has been increasingly becoming a mature engineer application technology, with other transmissions and controlling party
Formula is compared, and hydraulic drive is small in size, light-weight, stable drive, is limited by orientation small, easy to operate, therefore is obtained in industrial circle
Extensive use is arrived.Part machine tool chief axis can reach 8000 or even 10000 revs/min when running at high speed, under general work state
Also it can reach 2000 ~ 3000 revs/min, necessarily lead to a large amount of heat between main shaft and bearing at this time, to air and pass through master
Axis conduction itself, diffusion can be such that spindle deformation, rigidity reduces, the main shaft of overheat will be serious wherein being transmitted to the heat on main shaft
The machining accuracy of high precision machine tool is influenced, will affect the lathe service life under long-time.Therefore lathe producer all attaches great importance to lathe
Main shaft is cooling.
Main shaft type of cooling multiplicity, different modes have its Pros and Cons, for example oil cooling machine cooling just has controllable temperature
The advantage that range is big, cooling efficiency is high, but price costly is also its obvious disadvantage simultaneously, and a cheap lathe is not
Expensive oil cooling machine cooling system may be equipped with.
Utility model content
The technical problem to be solved by the utility model is to overcome existing skill for disadvantage present in background technique
The problem of art, provides a kind of novel facility machine tool spindle cooling device, can satisfy general requirement, while at
This is low, easy to maintain.
A kind of machine tool chief axis cooling system provided by the utility model, including fuel tank, oil absorption filter, liquidometer, pressure
Air cooler and oil syringe：The oil absorption filter is set to the inside of fuel tank, and the upper surface of the fuel tank is provided with electric-motor pump
But device and oil syringe, the fuel tank side are provided with liquidometer for group, air blast cooling；The motor pump group and oil absorption filter phase
Even；But device is electrically connected for the fuel tank, oil absorption filter, motor pump group and air blast cooling.
It is further improved as the utility model：The motor pump group cycloid crescent gear pump is nibbled in the cycloid
Closing gear pump includes transmission shaft, internal rotor, press oil port, outer rotor and inlet port；The internal rotor and outer rotor include flank profil,
The flank profil is made of conjugation cycloid, outer rotor gear teeth more than internal rotor.
The machine tool chief axis cooling system is one kind of liquid cooling, mainly by motor, pump (containing overflow valve), cooler, cooling
Medium, fuel tank, oil syringe, oil absorption filter, pipeline, connector and fuel outlet composition, it is by hydraulic pump that coolant liquid is actively defeated
It is sent into axis system, to main shaft, bearing is cooling and lubricates, defeated again after coolant liquid returns to the cabinet of cooling system with heat
It can be cooling to a certain degree by air cooler when being sent into axis system.So on circulate, it is ensured that machine-tool spindle system temperature is not
More than a certain value.
Reach above functions, cooling medium will play a dual role of cooling and lubricate, and cannot use water, hydraulic oil is at this
The effect of aspect, is also bad, and BS-2 main shaft oil is selected after comparative analysis.Due to needing to radiate, it is necessary to air cooler or water be arranged
Cooler, water cooler volume is larger, therefore air blast cooling device can be selected.In view of power loss and electrical machinery life problem, motor
Selection is P>1/8HP takes P=1/4HP.The utility model is low pressure, is not needed using plunger pump；Vane pump and gear pump all may be used
To use, but in view of antifouling property aspect gear pump is better than vane pump, therefore select gear pump cycloid crescent gear pump
Small in size, light-weight, structure is simple, and major part is few, and rotor uses powder metallurgically manufacturing, at low cost；And since its is inside and outside
Rotor relative rotation speed difference is small, and the angular range of oil distribution port is larger, and oil suction, pressure oil are abundant, will not generate cavitation；Due to a pair
Rotor is internal messing, and is rotate in same direction, and a tooth is only differed, so that the relative sliding velocity very little between two rotors at flank profil,
So smooth running, noise is small, and the service life is long.Based on the above advantage in the majority, the use of cycloid crescent gear pump is in this cooling, profit
Most suitable in sliding system, the defect that flow pulsation is big, volumetric efficiency is low has no effect on to be applied in such systems.
The utility model provides a kind of novel facility machine tool spindle cooling device, overcomes existing in the prior art one
A little problems, it can provide help to the cooling of the main shaft of machine tool, while at low cost, easy to maintain.It is described in the utility model
Spindle cooling device is one for cooling down the hydraulic system of machine tool chief axis, can efficiently reduce the main shaft during running at high speed
Temperature.Facility machine tool spindle cooling device so described in the utility model, so that it may meet it is general require, it can be to common
The main shaft cooling of lathe provides help, while at low cost, easy to maintain.The advantages of the present embodiment, is as follows：1, with few zero
Part designs spindle cooling device, reduces cost, reduces maintenance difficulties.2, designed, designed cycloid crescent gear pump.3, it uses
Service life length, low noise.
Detailed description of the invention
Fig. 1 is machine tool chief axis cooling system working principle diagram described in the utility model.
Fig. 2 is machine tool chief axis cooling system structure figure described in the utility model.
Fig. 3 is cycloid crescent gear pump working principle diagram described in the utility model.
Fig. 4 is temperature and pressure characteristic curve schematic diagram described in the utility model.
Fig. 5 is time-temperature curve described in the utility model intention.
Fig. 6 is the performance curve of pressure-flow schematic diagram described in the utility model.
In figure：1- fuel tank；2- motor pump group；3- oil absorption filter；4- oil syringe；5- liquidometer；6- air blast cooling but device；
11- transmission shaft, 12- internal rotor, 13- press oil port, 14- outer rotor, 15- inlet port.
Specific embodiment
In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, under
Face combines and is specifically illustrating, and the utility model is further described.
Embodiment 1
The machine tool chief axis cooling system of the present embodiment, as shown in figures 1 to 6：Including fuel tank 1 and it is set to the suction of fuel tank internal
Oil strainer, the upper surface of the fuel tank are provided with motor pump group 2, air blast cooling but device and oil syringe, and 1 side of fuel tank is set
It is equipped with liquidometer 5；The motor pump group 2 is connected with oil absorption filter 3；The fuel tank 1, oil absorption filter 3,2 and of motor pump group
But device 6 is electrically connected for air blast cooling.
2 cycloid crescent gear pump of motor pump group, the cycloid crescent gear pump include transmission shaft 11, internal rotor 12,
Press oil port 13, outer rotor 14 and inlet port 15；The internal rotor 12 and outer rotor 14 include flank profil, and the flank profil is put by conjugation
Line composition, the outer rotor 14 gear teeth more than internal rotor.
Fuel tank 1 holds BS-2 main shaft oil, and main shaft oil is flammable, there is certain corrosivity, volatility, need to be sealed.Pass through electricity
Pump group 2, the oil suction from fuel tank 1 are transported to main shaft from press oil port 13 by main shaft oil with certain pressure (0.3-0.6MPa) extrusion
System is cooled down and is lubricated to main shaft and bearing.After main shaft oil enters axis system, through lathe flusher to main shaft and axis
Sprinkling is held, convergence returns to axis system oil outlet after absorbing certain heat, guides through sebific duct to spindle cooling device (i.e. oil-in
Place), flow into air blast cooling but device.Flow through air cooler heat sink it is cooled after, main shaft oil returns to fuel tank 1.Oil absorption filter 3 is used
Enter the main shaft oil of cycloid crescent gear pump in filtering, prevent large granular impurity from entering inside gear pump, wears inner and outer rotors.
Fresh oil is injected into fuel tank 1, is carried out by oil syringe 4.Liquidometer 5 is mainly used for observing liquid level in fuel tank 1, in order to avoid main shaft
Oil consumption is excessive and causes spindle cooling device job failure.G3/8 hydraulic fluid port is used to put when every half a year or 1 year changing main-spindle oil
Oil is used, and is convenient for system maintenance.Fig. 2 is the system construction drawing.Fig. 3 show cycloid crescent gear pump working principle diagram, figure
Middle 11- transmission shaft, 12- internal rotor, 13- press oil port, 14- outer rotor, 15- inlet port.Cycloid crescent gear pump is also referred to as put
Line impeller pump or impeller pump belong to one kind of crescent gear pump, but the flank profil of its inner and outer Rotator is by conjugation cycloid institute group
At.There is the inner and outer Rotator 14 of a pair of eccentric engagement in figure, outer rotor 14 (driven wheel) is than internal rotor 12 (driving wheel) mostly one
Tooth is not required to setting partition between the two.When internal rotor is around center O1When being rotated in a clockwise direction, outer rotor is driven around center
O2Make friction speed rotation in the same direction.The gear teeth (i.e. O on the right of gear pump1O2The right side of line) when being disengaged from, parital vacuum is formed,
Carry out oil suction；When the gear teeth on the gear pump left side enter engagement, pressure oil is carried out.The gear pump during the work time, internal rotor
Each tooth turn over one week, then complete an oil suction, pressure oil process.So having z1The internal rotor of a tooth often turns over one week
Complete z1Secondary identical oil suction, pressure oil process.When internal rotor continuous rotation, then continuous oil suction and pressure oil can be carried out.
Fig. 4 lists this lathe spindle cooling device temperature and pressure characteristic curve, and as temperature increases, outlet pressure is suitable
Work as reduction.Fig. 5 lists this lathe spindle cooling device time-temperature curve, and oil temperature opens cooling system, base at 60 DEG C
Oil temperature is dropped to stable state by this system after 30min.Axis system persistent fever, spindle cooling device persistently radiate, in a steady stream
Constantly system thermal is dispersed into air.Fig. 6 lists this lathe spindle cooling device the performance curve of pressure-flow, reference
This figure can accurately set system oil pressure relief.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is not it should be appreciated that the utility model is limited by examples detailed above, described in examples detailed above and specification only
It is to illustrate the principles of the present invention, the utility model also has respectively on the premise of not departing from the spirit and scope of the utility model
Kind changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The requires of the utility model is protected
Shield range is defined by appended claims and its equivalent.
Claims (2)
1. machine tool chief axis cooling system, including fuel tank, oil absorption filter, liquidometer, air blast cooling but device and oil syringe；Its feature
It is：The oil absorption filter is set to the inside of fuel tank, and the upper surface of the fuel tank is provided with motor pump group, air blast cooling but
Device and oil syringe, the fuel tank side are provided with liquidometer；The motor pump group is connected with oil absorption filter；The fuel tank, suction
But device is electrically connected for oil strainer, motor pump group and air blast cooling.
2. machine tool chief axis cooling system according to claim 1, it is characterised in that：
The motor pump group is cycloid crescent gear pump, and the cycloid crescent gear pump includes transmission shaft, internal rotor, pressure oil
Mouth, outer rotor and inlet port；The internal rotor and outer rotor include flank profil, and the flank profil is made of conjugation cycloid, described outer
Rotor gear teeth more than internal rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820235457.4U CN208099950U (en) | 2018-02-09 | 2018-02-09 | Machine tool chief axis cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820235457.4U CN208099950U (en) | 2018-02-09 | 2018-02-09 | Machine tool chief axis cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208099950U true CN208099950U (en) | 2018-11-16 |
Family
ID=64124693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820235457.4U Active CN208099950U (en) | 2018-02-09 | 2018-02-09 | Machine tool chief axis cooling system |
Country Status (1)
| Country | Link |
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| CN (1) | CN208099950U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110880433A (en) * | 2019-09-12 | 2020-03-13 | 江苏赛洋机电科技有限公司 | Cooling mode for main shaft of numerical control machine tool |
| CN112846912A (en) * | 2021-01-02 | 2021-05-28 | 高小龙 | Large-scale numerical control machine tool |
-
2018
- 2018-02-09 CN CN201820235457.4U patent/CN208099950U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110880433A (en) * | 2019-09-12 | 2020-03-13 | 江苏赛洋机电科技有限公司 | Cooling mode for main shaft of numerical control machine tool |
| CN112846912A (en) * | 2021-01-02 | 2021-05-28 | 高小龙 | Large-scale numerical control machine tool |
| CN112846912B (en) * | 2021-01-02 | 2023-03-31 | 云南正成工精密机械有限公司 | Large-scale numerical control machine tool |
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