CN101698240A - Static pressure spindle device - Google Patents
Static pressure spindle device Download PDFInfo
- Publication number
- CN101698240A CN101698240A CN200910208263A CN200910208263A CN101698240A CN 101698240 A CN101698240 A CN 101698240A CN 200910208263 A CN200910208263 A CN 200910208263A CN 200910208263 A CN200910208263 A CN 200910208263A CN 101698240 A CN101698240 A CN 101698240A
- Authority
- CN
- China
- Prior art keywords
- guide rail
- static pressure
- spline guide
- spindle
- spindle device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention discloses a static pressure spindle device, and relates to the field of high speed gear shaping machine manufacturing. A male spline guide rail is separated from a spindle, and static pressure oil ways are arranged in a female spline guide rail and a static pressure bearing, so that the spindle meets the requirement of high speed processing, is suitable for the reciprocating frequency of high speed gear shaping of the gear shaping machine, and has enough rigidity and motion accuracy, and the integral structure has stable motion, high precision, long service life and strong processing capacity. The static pressure oil ways can reduce friction between the spindle and a static pressure bearing, and between the male spline guide rail and the female spline guide rail. A design of separated male spline guide rail and the spindle can facilitate replacing the male spline guide rail and the female spline guide rail, and the whole spindle is not needed to be replaced due to the wear of the male spline guide rail, so the service life of the spindle is prolonged, and the production cost is reduced.
Description
Technical field
The present invention relates to high speed gear shaper and make field, particularly a kind of static pressure spindle device.
Background technology
In order to improve stock-removing efficiency, current gear shaping equipment all develops towards the high-speed cutting direction.High-speed cutting processing be one of fast development in recent years at full speed, high accuracy, roughing feed be the new and high technology of principal character.High-speed cutting can increase substantially the working (machining) efficiency of part, the machined surface quality that cuts down finished cost, improves part and machining accuracy, has therefore obtained using widely in Aero-Space, mould industry and auto industry.As the instrument of high-speed cutting, high-speed cutting machine is the imperative equipment that realizes high-speed cutting, and the high-speed machine tool of research and development function admirable is precondition and the key factor that realizes high-speed cutting.But when the gear shaping speed of traditional gear shapping machine is brought up to a certain degree, also can cause a series of problem to occur, be mainly reflected in friction aggravation and temperature rise and cross high aspect.The increase of friction can be quickened the wearing and tearing of part, cause the reduction of part life, and temperature rise also can cause weakening of part strength, makes it that fatigue rupture take place easily.
Summary of the invention
Technical problem to be solved by this invention provides a kind of static pressure spindle device, can adapt to the high speed operation of gear shapping machine, and can prolong main shaft service life.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of static pressure spindle device, main shaft are installed in the hydrostatic bearing, and the external splines guide rail is installed on the main shaft by shaft end nut, the external splines guide rail is installed the internal spline guide rail outward, is provided with the static pressure oil circuit in the internal spline guide rail.
In the described static pressure oil circuit, an end of fuel feed hole is communicated with the connection oilhole by capillary restrictor, and the connection oilhole is communicated with pressure tap by last fabrication hole, and fabrication hole was communicated with bunker under pressure tap passed through.
It is stifled that last fabrication hole and following fabrication hole top are provided with oil.
The width-diameter ratio of hydrostatic bearing is 1-1.4.
Be provided with the axle sleeve oil pocket in the hydrostatic bearing, the axle sleeve oil pocket is communicated with oil-in.
A kind of static pressure spindle device provided by the invention, by the external splines guide rail is separated with main shaft, and in internal spline guide rail and hydrostatic bearing, be provided with the static pressure oil circuit, make main shaft be fit to the needs of High-speed machining, satisfy the reciprocating frequency of gear shapping machine High Speed Gear Shaping, and have enough rigidity and kinematic accuracy, and the overall structure motion is steadily, precision is high, the life-span is long, and working ability is strong.The static pressure oil circuit can reduce between main shaft and the hydrostatic bearing, the friction between external splines guide rail and the internal spline guide rail.The design that the external splines guide rail separates with main shaft can prolong the service life of main shaft so that the replacing of external splines guide rail and internal spline guide rail need not be changed whole main shaft because of the wearing and tearing of external splines guide rail, has reduced production cost.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 adopts overall structure schematic diagram of the present invention;
Fig. 2 is the schematic top plan view of internal spline guide rail among the present invention;
Fig. 3 is A-A, the B-B cutaway view of Fig. 2 among the present invention;
Fig. 4 is the structural representation of hydrostatic bearing among the present invention;
Fig. 5 is that the present invention installs the schematic diagram that cooperates with Worm gear mechanism.
The specific embodiment
In Fig. 1, a kind of static pressure spindle device, main shaft 1 are installed in the hydrostatic bearing 2, and external splines guide rail 3 is installed on the main shaft 1 by shaft end nut 9, and the external splines guide rail 3 outer internal spline guide rails 4 of installing are provided with the static pressure oil circuit in the internal spline guide rail 4.
In this example, external splines guide rail 3, the shaft shoulder by shaft end nut 9 and main shaft 1 has been realized axial location, realize and main shaft 1 circumferential registration by key, shaft end nut 9 not only can bear very big axial force and guarantee fixing reliable of external splines guide rail 3, but also, be that main shaft 1 transmits and moves back and forth as the main connector of main shaft 1 and gear shapping machine kinematic link.This structure processing is easier, and does not exist part to damage the problem that causes integral replacing, has increased stability of structure and reliability.
External splines guide rail 3 and internal spline guide rail 4 transmit the circular motion of main shaft 1 by engagement fit with this, and external splines guide rail 3 in oil film down lubricated, both produce the straight line relative motion, thus the carrying out smoothly of the assurance reciprocal slotting campaign of cutter shaft.Consider the length of stroke of main shaft 1, need the axial dimension requirement to some extent of external splines guide rail 3 with internal spline guide rail 4.Because oil pocket 46 is opened on internal spline guide rail 4 flank of tooth, and internal spline guide rail 4 maintains static, in order to make whole oil pocket 46 all have bearing capacity, therefore the axial dimension of internal spline guide rail 4 is in the scope of external splines guide rail 3 axial dimensions all the time, otherwise will contact with air because of the oil pocket 46 of internal spline guide rail 4 and make oil pocket 46 pressure is zero, lose bearing capacity, this is a situation about must be avoided, so external splines guide rail 3 should be longer than the axial dimension of internal spline guide rail 4.
In Fig. 2, Fig. 3, in the described static pressure oil circuit, an end of fuel feed hole 41 passes through capillary restrictor 47 and is communicated with connection oilhole 42, and connection oilhole 42 is communicated with pressure tap 43 by last fabrication hole 44, and fabrication hole 45 was communicated with bunker 46 under pressure tap 43 passed through.It is stifled that last fabrication hole 44 and following fabrication hole 45 tops are provided with oil.
Pressure oil is introduced into fuel feed hole 41, enters into connection oilhole 42 by capillary restrictor 47 then, arrives oil pocket 46 through last fabrication hole 44, pressure tap 43 and following fabrication hole 45 again.When design, the employing of pressure tap 43, last fabrication hole 44 and following fabrication hole 45 is the convenience in order to process and to make.For preventing leaking of pressure oil, three's end is all blocked by oil is stifled at ordinary times, and wherein pressure tap 43 can the cut-in pressure table, and this provides convenience for lubrication pressure force measurement in the oil circuit.
In Fig. 4, the width-diameter ratio of hydrostatic bearing 2 is 1.2, and the bearing capacity of hydrostatic bearing 2 and oil film rigidity are big and approximately increase pro rata along with the change of width-diameter ratio, so should select bigger width-diameter ratio in the design process.But consider the influence of the strain of main shaft 1, the width of hydrostatic bearing 2 is unsuitable excessive; And when width-diameter ratio increased, the friction consumption and the pump power of hydrostatic bearing 2 also increased.Take all factors into consideration above factor, should select suitable width-diameter ratio, so select 1.2 to be rational among the design.Be provided with axle sleeve oil pocket 22 in the hydrostatic bearing 2, axle sleeve oil pocket 22 is communicated with oil-in 21.Hydrostatic bearing 2 is by being bolted on the blade adapter for gear shaper splicing sleeve 10 during use, and the radial motion of restriction main shaft 1, keeps machining accuracy with this.Because hydrostatic bearing 2 is fixed, so the structure of oil circuit is simple relatively.Pressure oil directly flows into oil-in 21 by capillary restrictor 47, arrives axle sleeve oil pocket 22 at last.Because the restriction of hydrostatic bearing radial space, so oil-in 21 is by the oblique injection oil pocket 22 of bearing body from hydrostatic bearing 2 ends.
In Fig. 5, the present invention in use internal spline guide rail 4 is fixed together with worm gear 8 by guide pin bushing bolt 6 and bolt hole 48, and worm gear 8 realizations are passed through in its axial and circumferential location, and with worm gear 8 circular motion.Locate mode for worm gear 8, the design adopts worm gear gland 5 and knife rest splicing sleeve 10 to limit it and moves axially, consider that worm gear 8 axially need carry out two-way location, therefore design a kind of structure of worm gear gland, 5 pairs of worm gears of worm gear gland 8 also limit it when carrying out axial location and move radially, and worm gear 8 has been realized location fully thus.Worm gear gland 5 is fixed together by gland bolt 7 and knife rest splicing sleeve 10, and when being worm gear 8 location, the cavity that worm gear gland 5 and knife rest splicing sleeve 10 form guarantees that also as the gathering-device of lubricating oil the lubricating system oil return is unobstructed.
Claims (5)
1. static pressure spindle device, it is characterized in that: main shaft (1) is installed in the hydrostatic bearing (2), external splines guide rail (3) is installed on the main shaft (1) by shaft end nut (9), the outer internal spline guide rail (4) of installing of external splines guide rail (3), and the internal spline guide rail is provided with the static pressure oil circuit in (4).
2. a kind of static pressure spindle device according to claim 1, it is characterized in that: in the described static pressure oil circuit, one end of fuel feed hole (41) is communicated with connection oilhole (42) by capillary restrictor (47), connection oilhole (42) is communicated with pressure tap (43) by last fabrication hole (44), and fabrication hole (45) was communicated with bunker (46) under pressure tap (43) passed through.
3. a kind of static pressure spindle device according to claim 2 is characterized in that: go up fabrication hole (44) and following fabrication hole (45) top and be provided with oily stifled.
4. a kind of static pressure spindle device according to claim 1 is characterized in that: the width-diameter ratio of hydrostatic bearing (2) is 1-1.4.
5. according to claim 1 or 4 described a kind of static pressure spindle devices, it is characterized in that: be provided with axle sleeve oil pocket (22) in the hydrostatic bearing (2), axle sleeve oil pocket (22) is communicated with oil-in (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910208263A CN101698240A (en) | 2009-10-24 | 2009-10-24 | Static pressure spindle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910208263A CN101698240A (en) | 2009-10-24 | 2009-10-24 | Static pressure spindle device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101698240A true CN101698240A (en) | 2010-04-28 |
Family
ID=42146707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910208263A Pending CN101698240A (en) | 2009-10-24 | 2009-10-24 | Static pressure spindle device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101698240A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102039454A (en) * | 2010-10-13 | 2011-05-04 | 浙江劳伦斯机床有限公司 | Quadrilateral stepped-tooth spline guide-rail mechanism |
| CN102717054A (en) * | 2012-06-04 | 2012-10-10 | 宜昌长机科技有限责任公司 | Cast inner wear layer device for static pressure guide sleeve |
| CN103357969A (en) * | 2012-03-26 | 2013-10-23 | 宜昌长机科技有限责任公司 | Active-moving static pressure device of gear shaper |
| CN105666163A (en) * | 2015-11-27 | 2016-06-15 | 浙江劳伦斯机床有限公司 | Double hydrostatic guide ways and mechanical universal angle helical gear shaping machine |
| CN108375395A (en) * | 2018-03-22 | 2018-08-07 | 中国铁路设计集团有限公司 | The underground acquisition component of power and speed signal in standard penetration test (SPT) |
-
2009
- 2009-10-24 CN CN200910208263A patent/CN101698240A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102039454A (en) * | 2010-10-13 | 2011-05-04 | 浙江劳伦斯机床有限公司 | Quadrilateral stepped-tooth spline guide-rail mechanism |
| CN103357969A (en) * | 2012-03-26 | 2013-10-23 | 宜昌长机科技有限责任公司 | Active-moving static pressure device of gear shaper |
| CN102717054A (en) * | 2012-06-04 | 2012-10-10 | 宜昌长机科技有限责任公司 | Cast inner wear layer device for static pressure guide sleeve |
| CN102717054B (en) * | 2012-06-04 | 2014-09-03 | 宜昌长机科技有限责任公司 | Cast inner wear layer device for static pressure guide sleeve |
| CN105666163A (en) * | 2015-11-27 | 2016-06-15 | 浙江劳伦斯机床有限公司 | Double hydrostatic guide ways and mechanical universal angle helical gear shaping machine |
| CN108375395A (en) * | 2018-03-22 | 2018-08-07 | 中国铁路设计集团有限公司 | The underground acquisition component of power and speed signal in standard penetration test (SPT) |
| CN108375395B (en) * | 2018-03-22 | 2024-04-19 | 中国铁路设计集团有限公司 | Underground acquisition assembly for force and speed signals in standard penetration test |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101698240A (en) | Static pressure spindle device | |
| CN201543832U (en) | Static pressure main shaft apparatus | |
| CN109128835A (en) | Longitudinal sectional formula complex milling machine tool | |
| US8613609B2 (en) | Bi-metal pump gear | |
| CN201470968U (en) | Eccentric double face mill device | |
| CN102490065A (en) | Static combined bearing for screw rod | |
| CN101761609A (en) | Bidirectional output speed reducer | |
| CN101666367B (en) | Clearance-free planetary drive device | |
| TW201628766A (en) | Straight movement type static pressure servo dynamic power main shaft head and work method thereof | |
| CN201368184Y (en) | Differential mechanism adjusting gasket of automobile transmission bridge | |
| CN104088918A (en) | Tooth type coupling | |
| CN101550955B (en) | Rotary cylinder using planar end oil film for sealing hydraulic slipring | |
| CN203730725U (en) | Lubricating mechanism for bearing of input end of transmission | |
| CN211693424U (en) | Thrust washer lubricating structure of middle axle driving cylindrical gear | |
| CN208750387U (en) | Involute gear oil pump | |
| CN201301900Y (en) | Axial and radial combination bearing with high precision and high rigidity | |
| CN101402175B (en) | Independent oil supply structure for oil recess inside and outside primary shaft gathering ring bearing of high-speed machine tool | |
| CN112872379A (en) | Multi-spindle axial fine adjustment mechanism | |
| CN219336190U (en) | Push broach device for machining inner diameter oil groove of knuckle bearing | |
| CN219082194U (en) | Gear wheel | |
| CN203076636U (en) | Deep and long hole part boring precision machining device | |
| CN211423203U (en) | Improved cardan shaft device | |
| CN219366748U (en) | Gearbox and vehicle | |
| CN211059340U (en) | Automobile transmission gear baffle | |
| CN202910303U (en) | Fully contact integrated boring mill main shaft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100428 |