CN103350237B - A kind of oil-air lubrication pipeline of main axle structure - Google Patents
A kind of oil-air lubrication pipeline of main axle structure Download PDFInfo
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- CN103350237B CN103350237B CN201310329273.6A CN201310329273A CN103350237B CN 103350237 B CN103350237 B CN 103350237B CN 201310329273 A CN201310329273 A CN 201310329273A CN 103350237 B CN103350237 B CN 103350237B
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Abstract
The invention discloses a kind of oil-air lubrication pipeline of main axle structure, often organize bearing respectively correspondence be provided with at least one group of in-line, the terminal of each group of in-line aims at the inner ring of described bearing, often organizes bearing correspondence and is provided with three groups of in-lines, be mutually 120 ° described in three groups between in-line.By arranging and organize in-line more often organizing correspondence on bearing, and being uniformly distributed setting by organizing in-line more, ensureing the even lubrication of main axle structure, improving radiating efficiency.This pipeline structure adapts to the use of main shaft high speed five axle precise vertical machining centres, effectively can ensure the mode continus convergence that lubricating oil repeatedly can count with low dose, makes bearing be in best lubricating status all the time.Meanwhile, the lubricating oil film with certain bearing capacity can be formed, there is excellent antifriction function.In addition, by adopting Oil-air Lubrication, compressed air can make bearing dispel the heat better, makes the energy effective cooling of bearing.
Description
Technical field
The invention belongs to plant equipment lubrication technical field, be specifically related to a kind of oil-air lubrication pipeline of main axle structure.
Background technology
Five axle precise vertical machining centre main shafts are by built-in motor Direct driver at a high speed, thus be zero the contraction in length of Machine Tool Main Drive chain, make spindle unit out relatively independent from the transmission system and overall structure of lathe, there is compact conformation, the advantage such as rotating speed is high, lightweight, inertia is little, response is fast and power is large, be easy to realize main shaft quick position simultaneously.
Adopt the main shaft shaft shoulder diameter of the vertical machining centre of BT50 spindle taper hole large, its main axle structure is easy to when High Rotation Speed apply periodically active force because of the bias of main shaft manufacture, installation and the load of process to main shaft support bearing, thus the heating causing main shaft bearing very serious, wearing and tearing.Bad if dispelled the heat, can make main shaft temperature rise and axial elongation, this have impact on again the pretightning force of main shaft bearing conversely, and this just makes the heating problem of main shaft and main shaft bearing more serious, even damages main shaft bearing.This is also the main cause causing this kind of main axle structure to be difficult to realize running up and keeping good precision.
Traditional lubricating system, as the lubricating systems such as grease lubrication, splash lubrication, fog lubrication, circulating lubricating are all not suitable with the requirement of high-speed main spindle to lubrication, oil-air lubrication then adapts to the requirement such as lubricants capacity, lubricating oil viscosity of high-speed spindle bearing more.At present, the oil-air lubrication pipeline of traditional high Spee ' d Vertical Machining Centre electric mainshaft bearing is for singly to organize lubricating system, and which can not effectively be lubricated bearing, and the caloric value of bearing is large, the heat produced effectively can not be dissipated by lubrication, finally affects main shaft precision.
In view of above problem, for adapting to the application of oil-air lubricating device at BT50 main shaft high speed five axle precise vertical machining centres, be necessary to propose a kind of Novel oil gas lubricating pipe structure, effective guarantee bearing is in best lubricating status all the time, the lubricating oil film with certain bearing capacity can be formed simultaneously, ensure that there is excellent antifriction function; In addition, bearing can be made to dispel the heat better, make bearing energy effective cooling, improve main shaft precision.
Summary of the invention
In view of this, the invention provides a kind of oil-air lubrication pipeline of main axle structure, to adapt to the application of main shaft high speed five axle precise vertical machining centres, make bearing be in best lubricating status all the time, the lubricating oil film with certain bearing capacity can be formed simultaneously, there is excellent antifriction function; In addition, bearing can be made to dispel the heat better, make bearing energy effective cooling, improve main shaft precision.
The oil-air lubrication pipeline of a kind of main axle structure that object according to the present invention proposes, be opened on bearing block, described main axle structure comprises main shaft and at least two group bearings, often organize described bearing respectively correspondence be provided with at least one group of in-line, the terminal of each group of in-line aims at the inner ring of described bearing, and often the circular array distribution centered by described spindle axis line of the many group in-line of group corresponding to bearing is arranged.
Preferably, often organize described bearing correspondence and be provided with three groups of in-lines, described in three groups, between in-line, be mutually 120 °.
Preferably, end bearing and two groups of rear end bearings before described main axle structure comprises two groups.
Preferably, before described two groups end bearing in-line between be mutually 60 ° of angles, be mutually 60 ° of angles between the in-line of described two groups of rear end bearings.
Preferably, the described in-line inclination in-line that comprises horizontal in-line, vertical in-line respectively and contact with described bearing inner ring.
Preferably, be respectively arranged with spacer ring before two groups between end bearing and between two groups of rear end bearings, the front end of front end bearing and the rear end of rear end bearing are provided with gland, and the front end of described rear end bearing is provided with sealing ring.
Preferably, before last group end bearing comprise be communicated with successively be arranged at horizontal in-line on bearing block and vertical in-line, and the gland in-line be opened on the gland of front end, or the spacer ring in-line be opened on spacer ring, described gland in-line or be connected with inclination in-line between spacer ring in-line and bearing inner ring; Before latter one group, end bearing comprises the spacer ring in-line being arranged at the horizontal in-line on bearing block, vertical in-line and being opened on described spacer ring be communicated with successively; Inclination in-line is connected with between described spacer ring in-line and bearing inner ring.
Preferably, last group of rear end bearing comprise be communicated with successively be arranged at horizontal in-line on bearing block and vertical in-line, and the sealing ring in-line be opened on described sealing ring, or the spacer ring in-line be opened on spacer ring, described sealing ring in-line or be connected with inclination in-line between spacer ring in-line and bearing inner ring; Rear one group of rear end bearing comprise be communicated with successively be arranged at horizontal in-line on bearing block and vertical in-line, and the spacer ring in-line be opened on described spacer ring, or the gland in-line be opened on the gland of rear end, described spacer ring in-line or be connected with inclination in-line between gland in-line and bearing inner ring.
Preferably, described in-line terminal and described bearing inner ring are 15-30 ° of angle.
Compared with prior art, the advantage of the oil-air lubrication pipeline of main axle structure disclosed by the invention is: by arranging and organize in-line more often organizing correspondence on bearing, and be uniformly distributed setting by organizing in-line more, ensure the even lubrication of main axle structure, improve radiating efficiency.This pipeline structure adapts to the use of main shaft high speed five axle precise vertical machining centres, effectively can ensure the mode continus convergence that lubricating oil repeatedly can count with low dose, makes bearing be in best lubricating status all the time.Meanwhile, the lubricating oil film with certain bearing capacity can be formed, there is excellent antifriction function.In addition, by adopting Oil-air Lubrication, compressed air can make bearing dispel the heat better, makes the energy effective cooling of bearing.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is bearing lubrication piping diagram in front end disclosed by the invention.
Fig. 2 is rear end bearing lubricating pipe figure disclosed by the invention.
The title of the numeral in figure or the corresponding component representated by letter:
1, main shaft 2, front-end bearing pedestal 3, front end bearing 4, front end gland 5, spacer ring 6, rear bearing block 7, rear end bearing 8, rear end gland 9, sealing ring
11, horizontal in-line 12, vertical in-line 13, inclination in-line 14, gland in-line 15, spacer ring in-line 16, sealing ring in-line
Detailed description of the invention
Traditional lubricating system is not suitable with the requirement of high-speed main spindle to lubrication, and oil-air lubrication then adapts to the requirement such as lubricants capacity, lubricating oil viscosity of high-speed spindle bearing more.At present, the oil-air lubrication pipeline of traditional high Spee ' d Vertical Machining Centre electric mainshaft bearing is for singly to organize lubricating system, and which can not effectively be lubricated bearing, and the caloric value of bearing is large, the heat produced effectively can not be dissipated by lubrication, finally affects main shaft precision.
The present invention is directed to deficiency of the prior art, the invention provides a kind of oil-air lubrication pipeline of main axle structure, to adapt to the application of main shaft high speed five axle precise vertical machining centres, bearing is made to be in best lubricating status all the time, the lubricating oil film with certain bearing capacity can be formed simultaneously, there is excellent antifriction function; In addition, bearing can be made to dispel the heat better, make bearing energy effective cooling, improve main shaft precision.
To be clearly and completely described technical scheme of the present invention by detailed description of the invention below.Obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, 2, a kind of oil-air lubrication pipeline of main axle structure, be opened on bearing block, main axle structure comprises main shaft 1 and at least two group bearings, often organize bearing respectively correspondence be provided with at least one group of in-line, the inner ring of the terminal alignment bearings of each group of in-line, often the circular array distribution centered by the axial line of main shaft of the many group in-line of group corresponding to bearing is arranged.In order to ensure that the terminal of in-line aims at inner ring, therefore the terminal of in-line is obliquely installed.By being uniformly distributed setting by organizing in-line, ensureing the even lubrication of main axle structure more, improving radiating efficiency.
Often organize bearing correspondence and be provided with three groups of in-lines, described in three groups, between in-line, be mutually hexagonal angle distribution.Wherein, draw by experiment, the even setting of three groups of in-lines achieves under the prerequisite ensureing lubricant effect and radiating efficiency, and the object of less use in-line, cost is lower.
In addition, except employing three groups of in-lines, often organize bearing and also may correspond to 2 groups, 4 groups in-lines not etc. are set, specifically determine according to service condition, do not limit at this.
End bearing 3 and two groups of rear end bearings 7 before main axle structure comprises symmetrically arranged two groups.In front end bearing 3, the in-line of two groups of bearings is mutually 60 degree of angles, and in rear end bearing 7, the in-line of two groups of bearings is mutually 60 degree of angles.The number of degrees being mutually angle in in-line are determined according to the group number of in-line, specifically do not limit.
The inclination in-line that in-line comprises horizontal in-line, vertical in-line respectively and contacts with bearing inner ring.Except employing level or vertical wait in-line except also can be direct one-body molded curve pipeline, but due to the generally more difficult processing of curve pipeline, therefore not adopt when routine use.
Be respectively arranged with spacer ring 5 between end bearing 3 and between two groups of rear end bearings 7 before two groups, the front end of front end bearing 3 and the rear end of rear end bearing 7 are provided with gland, be respectively front end gland 4 and rear end gland 8, and the front end of rear end bearing are provided with sealing ring 9.
Before last group, the in-line at end bearing A place comprises the gland in-line 14 being arranged at the horizontal in-line 11 on bearing block, vertical in-line 12 and being opened on front end gland 4 be communicated with successively, gland in-line front end is also connected with the inclination in-line 13 tilting to point to bearing inner ring, and oil gas is entered by I.By the terminal of in-line being obliquely installed, guaranteeing oil inlet pipe crossing alignment bearings inner ring, ensureing effective utilization of lubricating oil.Wherein, also can offer spacer ring in-line on spacer ring, spacer ring in-line one end communicates with the vertical in-line 12 on bearing block, and the other end is connected with inclination in-line, realizes the lubrication to bearing A.
Before latter one group, the in-line at end bearing B place comprises the spacer ring in-line being arranged at the horizontal in-line 11 on bearing block, vertical in-line and being opened on spacer ring 5 be communicated with successively, the inclination in-line tilting to point to bearing inner ring is also connected with between spacer ring in-line and bearing inner ring, by the terminal of in-line is obliquely installed, guarantee oil inlet pipe crossing alignment bearings inner ring, ensure effective utilization of lubricating oil.Vertical in-line in the in-line that its middle (center) bearing B is corresponding, spacer ring in-line and inclination in-line are all not shown in the drawings.
The in-line at last group of rear end bearing C place comprises the sealing ring in-line 16 being arranged at the horizontal in-line 11 on bearing block, vertical in-line 12 and being opened on sealing ring 9 be communicated with successively; Sealing ring in-line 16 front end is also connected with the inclination in-line 13 tilting to point to bearing inner ring, by the terminal of in-line being obliquely installed, guarantees oil inlet pipe crossing alignment bearings inner ring, ensures effective utilization of lubricating oil.Wherein, also can offer spacer ring in-line on spacer ring, spacer ring in-line one end communicates with the vertical oil inlet pipe 12 on bearing block, and the other end is connected with inclination in-line, realizes the lubrication to bearing C.
The in-line at rear one group of rear end bearing D place comprises the spacer ring in-line 15 being arranged at the horizontal in-line 11 on bearing block, vertical in-line 12 and being opened on spacer ring 5 be communicated with successively; Spacer ring in-line 15 front end is also connected with the inclination in-line 13 tilting to point to bearing inner ring, by the terminal of in-line being obliquely installed, guarantees oil inlet pipe crossing alignment bearings inner ring, ensures effective utilization of lubricating oil.Wherein, also can offer gland in-line on the gland of rear end, gland in-line one end communicates with the vertical in-line 12 on bearing block, and the other end is connected with inclination in-line, realizes the lubrication to bearings D.Detailed description of the invention does not limit.
In-line terminal and bearing inner ring are 15-30 ° of angle.Wherein the angle number of degrees are 15 °, 17 °, 19 °, 21 °, 23 °, 25 °, 27 °, 29 °, 30 ° etc., specifically determine as required, do not limit at this.
The invention discloses a kind of oil-air lubrication pipeline of main axle structure, by arranging and organize in-line more often organizing correspondence on bearing, and being uniformly distributed setting by organizing in-line more, ensureing the even lubrication of main axle structure, improving radiating efficiency.This pipeline structure adapts to the use of main shaft high speed five axle precise vertical machining centres, effectively can ensure the mode continus convergence that lubricating oil repeatedly can count with low dose, makes bearing be in best lubricating status all the time.Meanwhile, the lubricating oil film with certain bearing capacity can be formed, there is excellent antifriction function.In addition, by adopting Oil-air Lubrication, compressed air can make bearing dispel the heat better, makes the energy effective cooling of bearing.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. the oil-air lubrication pipeline of a main axle structure, be opened on bearing block, it is characterized in that, described main axle structure comprises main shaft and at least two group bearings, often organize described bearing correspondence and be provided with three groups of in-lines, be mutually 120 ° between in-line described in three groups, the terminal of each group in-line aims at the inner ring of described bearing, and often the circular array distribution centered by spindle axis line of the three group in-lines of group corresponding to bearing is arranged; Described in-line terminal and described bearing inner ring are 15-30 ° of angle.
2. the oil-air lubrication pipeline of main axle structure as claimed in claim 1, is characterized in that, end bearing and two groups of rear end bearings before described main axle structure comprises two groups.
3. the oil-air lubrication pipeline of main axle structure as claimed in claim 2, is characterized in that, before described two groups end bearing in-line between be mutually 60 ° of angles, be mutually 60 ° of angles between the in-line of described two groups of rear end bearings.
4. the oil-air lubrication pipeline of main axle structure as claimed in claim 1, is characterized in that, the inclination in-line that described in-line comprises horizontal in-line, vertical in-line respectively and contacts with described bearing inner ring.
5. the oil-air lubrication pipeline of main axle structure as claimed in claim 2, it is characterized in that, be respectively arranged with spacer ring between end bearing and between two groups of rear end bearings before two groups, the front end of front end bearing and the rear end of rear end bearing are provided with gland, and the front end of described rear end bearing is provided with sealing ring.
6. the oil-air lubrication pipeline of main axle structure as claimed in claim 5, it is characterized in that, before last group, end bearing comprises the gland in-line being arranged at horizontal in-line on bearing block and vertical in-line and being opened on the gland of front end be communicated with successively, or the spacer ring in-line be opened on spacer ring, described gland in-line or be connected with inclination in-line between spacer ring in-line and bearing inner ring; Before latter one group, end bearing comprises the spacer ring in-line being arranged at the horizontal in-line on bearing block, vertical in-line and being opened on described spacer ring be communicated with successively; Inclination in-line is connected with between described spacer ring in-line and bearing inner ring.
7. the oil-air lubrication pipeline of main axle structure as claimed in claim 5, it is characterized in that, last group of rear end bearing comprises the sealing ring in-line being arranged at horizontal in-line on bearing block and vertical in-line and being opened on described sealing ring be communicated with successively, or the spacer ring in-line be opened on spacer ring, described sealing ring in-line or be connected with inclination in-line between spacer ring in-line and bearing inner ring; Rear one group of rear end bearing comprises the spacer ring in-line being arranged at horizontal in-line on bearing block and vertical in-line and being opened on described spacer ring be communicated with successively, or the gland in-line be opened on the gland of rear end, described spacer ring in-line or be connected with inclination in-line between gland in-line and bearing inner ring.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310329273.6A CN103350237B (en) | 2013-07-31 | 2013-07-31 | A kind of oil-air lubrication pipeline of main axle structure |
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| CN201310329273.6A CN103350237B (en) | 2013-07-31 | 2013-07-31 | A kind of oil-air lubrication pipeline of main axle structure |
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| CN103350237A CN103350237A (en) | 2013-10-16 |
| CN103350237B true CN103350237B (en) | 2016-03-23 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103752863B (en) * | 2013-12-31 | 2016-05-11 | 广州市昊志机电股份有限公司 | A kind of speed electric rolling-ball main shaft |
| CN104875074B (en) * | 2014-02-28 | 2017-10-10 | 兄弟工业株式会社 | Lathe |
| CN115338686B (en) * | 2022-10-18 | 2022-12-13 | 江苏威泽智能科技股份有限公司 | Machine tool spindle |
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| CN101040129A (en) * | 2004-10-19 | 2007-09-19 | Ntn株式会社 | Lubricating device for rolling bearing |
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