CN102221039A - Dynamic and static pressure ball socket bearing structure for high speed gear shaper - Google Patents
Dynamic and static pressure ball socket bearing structure for high speed gear shaper Download PDFInfo
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- CN102221039A CN102221039A CN2011101537655A CN201110153765A CN102221039A CN 102221039 A CN102221039 A CN 102221039A CN 2011101537655 A CN2011101537655 A CN 2011101537655A CN 201110153765 A CN201110153765 A CN 201110153765A CN 102221039 A CN102221039 A CN 102221039A
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Abstract
The invention relates to a dynamic and static pressure ball socket bearing structure for a high speed gear shaper. The structure comprises a ball rod (1), a ball socket (2) and a shell (3), wherein the lower end of the shell (3) is connected with a cutter spindle; a ball main body (6) at the lower end of the ball rod (1) is positioned in the ball socket (2); the ball socket (2) is arranged in an installation seat of the shell (3) and is positioned and subjected to gap adjustment along the axial direction of the ball rod (1) through a pressing ring (4); and the upper end of the ball rod (1) stretches out of the pressing ring (4) and is connected with a crank. The structure is characterized in that: an oil injection hole (7) is formed in the center of the ball rod (1) and reaches the ball center of the ball main body (6); the ball main body (6) is provided with a throttler (5) along the radial direction; and the oil inlet end of the throttler (5) is communicated with the oil injection hole (7) which reaches the ball center, and the oil outlet end of the throttler (5) is communicated with an annular shallow cavity on the surface of the ball main body (6), so that the shallow cavity generates dynamic pressure bearing force and static pressure bearing force due to a step effect to bear upper and lower axial forces from a gear shaping spindle when the ball main body (6) moves. The structure is simple and has a good lubricating effect and long service life.
Description
Technical field
The present invention relates to a kind of gear shaping machine, especially relate to the connection cutter spindle of one of critical movements parts in a kind of high speed gear shaper and the ball socket bearing structure of crank, specifically a kind of high speed gear shaper is with active and static pressure ball socket bearing structure.
Background technique
At present, the most slidercrank mechanisms that adopt of the main movement of high speed gear shaper, cutter spindle links by ball socket bearing and connecting rod as the slide block in the mechanism, when crank during around its center steering, cutter spindle produces main movement up and down, in this mechanism, owing to be subjected to structural limitations, the sphere diameter in the ball socket bearing is about 50-60mm, the driving force that the cutting force of cutter and cutter spindle move up and down all acts on this, and stressed direction and size all change at high frequency.Therefore when the main movement scheme of this type of lathe of design, pay particular attention to ball socket bearing herein.
In the production scene, because a variety of causes, such as the too small overheated and sintering of ball pivot that causes of lubricant oil deficiency, gap, the phenomenon that excesssive gap causes noise to exceed standard happens occasionally.Therefore ball socket bearing is the success or failure key that is related to high speed gear shaper.
Traditional way is to inject continuous lubrication oil to the spheroid junction plane, be used for reaching the purpose of lubricating and having heat, this type of way is feasible when the gear shaping stroke speed is in 2000str/min, can produce the inordinate wear of spheroid junction plane when 2000str/min is above.
In sum, the gear shaping machine ball socket bearing of existing structure can't satisfy high speed stroke needs.
Summary of the invention
The objective of the invention is the problem that structure and lubricating system at existing ball socket bearing can't satisfy the gear shaping speed more than 2000 times/minute, design a kind of high lubricating effect, can satisfy the high speed gear shaper active and static pressure ball socket bearing structure of High Speed Gear Shaping requirement and long service life.
Technological scheme of the present invention is:
A kind of high speed gear shaper active and static pressure ball socket bearing structure, comprise club 1, ball pivot seat 2 and housing 3, the lower end of housing 3 links to each other with cutter spindle, the spheroid main body 6 of club 1 lower end is arranged in ball pivot seat 2, ball pivot seat 2 is installed in the fitting seat of housing 3 and realizes along club 1 axial location and gap adjustment by trim ring 4, the upper end of club 1 is stretched out outside the trim ring 4 and is linked to each other with crank, the center that it is characterized in that described club 1 is provided with oil hole 7, the centre of sphere of these oil hole 7 through spheroid main bodys 6, it radially is equipped with flow controller 5 in spheroid main body 6 upper edges, the oil inlet end of flow controller 5 communicates with the oil hole of the through centre of sphere 7, the oil outlet end of flow controller 5 communicates with the shallow annular chamber on spheroid main body 6 surfaces, so that make described shallow chamber bear axial force up and down from the gear shaping main shaft because of alias forms dynamic pressure bearing capacity and static pressure bearing capacity when spheroid main body 6 motion.
Described flow controller 5 is made up of the major diameter oilhole and the minor diameter oilhole of mutual perforation, the oil outlet end of described minor diameter oilhole communicates with the shallow annular chamber on spheroid main body 6 surfaces, and the oil inlet end of described major diameter oilhole is connected with the oil hole 7 of through spheroid main body 6 centre ofs sphere.
The quantity in the shallow annular chamber on described spheroid main body 6 surfaces equals 1/2 of described flow controller 5 quantity at least, and is separate or continuous by connecting groove between the adjacent shallow annular chamber, with the uniformity of further enhancing spheroid main body 6 surface lubrication oil content cloth.
The degree of depth in the shallow annular chamber on described spheroid main body 6 surfaces is grading structure, and is big more the closer to the degree of depth in the shallow chamber at flow controller 5 places.
The wear body that described ball pivot seat 2 is made for stupalith or deposit wearing layer at the parent metal material surface.
The diameter of described spheroid main body 6 is the 50-60 millimeter.
Beneficial effect of the present invention:
The present invention creatively the lubrication principle of shallow cavity configuration is applied to the ball pivot of gear shaping machine lubricated in, solved the unsolved for a long time technical barrier of gear shaping machine, improved lubrication effect, improved the mean time between failures of gear shaping machine widely.
The present invention by adopting stupalith the ball pivot seat or set up the wear resistance that wear resistant coating has increased the ball pivot seat greatly, prolonged working life, with lubricated the matching in shallow chamber prolonged the whole overhaul life greatly.
Gear shaping machine ball socket bearing of the present invention is used for High Speed Gear Shaping cutter stroke movement, can effectively avoid the unusual damage of ball socket bearing, improves the antidetonation vibration absorption ability, effectively strengthens the reliability of main movement.
The present invention is simple in structure, is easy to realize.
Description of drawings
Fig. 1 is the structural representation of ball socket bearing of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
As shown in Figure 1.
A kind of high speed gear shaper active and static pressure ball socket bearing structure, comprise club 1, ball pivot seat 2 and housing 3, the lower end of housing 3 links to each other with cutter spindle, ball pivot seat 2 can directly adopt stupalith to make, to improve its wear resistance, also can adopt in the method for parent metal material surface deposition antifriction metal (AFM) layer (as zirconium oxide, aluminium oxide) or wear-resisting non-metallic layer (as silicon nitride, silicon carbide) and be made.The spheroid main body 6 of club 1 lower end is arranged in ball pivot seat 2, the diameter of spheroid main body 6 is the 50-60 millimeter, ball pivot seat 2 is installed in the fitting seat of housing 3 and realizes along club 1 axial location and gap adjustment by trim ring 4, the upper end of club 1 is stretched out outside the trim ring 4 and is linked to each other with crank, the center of described club 1 is provided with oil hole 7, the centre of sphere of these oil hole 7 through spheroid main bodys 6, it radially is equipped with flow controller 5 in spheroid main body 6 upper edges, flow controller 5 can adopt the orifice restriction device, it can directly process on spheroid main body 6, also can directly after market purchasing, be installed in the radial hole of spheroid main body 6, the oil inlet end of flow controller 5 communicates with the oil hole of the through centre of sphere 7, the oil outlet end of flow controller 5 communicates with the shallow annular chamber on spheroid main body 6 surfaces, the degree of depth in described shallow annular chamber preferably is grading structure, and the degree of depth the closer to the shallow chamber, outlet end place of flow controller 5 is dark more, the degree of depth in shallow chamber of the present invention is between the 0.1-0.5 millimeter, or gradual change also can not gradual change, with fade effect the best, so that when spheroid main body 6 motion, make described shallow chamber bear axial force up and down from the gear shaping main shaft because of alias forms dynamic pressure bearing capacity and static pressure bearing capacity.When flow controller adopts direct processing structure constantly, flow controller 5 can be made up of the major diameter oilhole and the minor diameter oilhole of mutual perforation, the oil outlet end of described minor diameter oilhole communicates with the shallow annular chamber on spheroid main body 6 surfaces, and the oil inlet end of described major diameter oilhole is connected with the oil hole 7 of through spheroid main body 6 centre ofs sphere.The quantity in the shallow annular chamber on spheroid main body 6 surfaces equals 1/2 of described flow controller 5 quantity at least, and is separate or continuous by connecting groove between the adjacent shallow annular chamber, with the uniformity of further enhancing spheroid main body 6 surface lubrication oil content cloth.
The gear shaping machine main movement is when running up, and the stress between club 1 and the ball pivot seat 2 is bigger, and the two material selection is extremely important, and the material of club 1 is GCr15, and the material of ball pivot seat 2 is a pottery.Flow controller 5 is contained in the spheroid of club 1 head, adopts shallow cavity configuration at spherome surface.By Performance Calculation, the ball socket bearing among the present invention is significantly improved at aspects such as bearing capacity and stability, compares with common gear shaping machine ball socket bearing, and bearing capacity increases considerably, and oil slick thickness and pressure area strengthen, and stability obviously improves.Trim ring 4 can be used to adjust the gap between spheroid and the ball pivot seat.Flow controller 5 is used for regulating pressure and the flow that leads to hydraulic oil between spheroid and the ball pivot, behind host-initiated, relies on dynamic pressure bearing capacity that shallow chamber alias forms and static pressure bearing capacity to bear axial force up and down from the gear shaping main shaft.
When the gear shaping machine proper functioning, club 1 rocks from side to side, angle is about ± and 7.5 °, ball pivot seat 2 turns round around the cutter spindle center, adopt NC Milling to go out four shallow chambeies among Fig. 1 on the spheroid main body 6 of club 1 head, the degree of depth of single oil pocket is gradual change, adopts the multi-cavity balanced configuration, reaches the homogenization of high pressure oil film and good resistance to shock.By flow controller 5, utilize the Throttle Principle of hydrostatic bearing, will be converted into laminar flow from the turbulent flow of external hydraulic oil, make the enough big static pressure of generation in the pressure oil cavity, produce oil film with bearing capacity at the spheroid junction plane.Club 1 rock from side to side and ball pivot seat 2 turning courses in, the spherome surface of slide relative forms the convergent wedge gap.The grinding of ball pivot seat 2 is divided into two stages, and the phase I is utilized arbitrfary point, ball surface and the equidistant principle of the centre of sphere, the grinding inner ball surface, and second stage is ground with accessory mutually, and the assurance point of contact is more than 25 o'clock.The restriction characteristic of four flow controllers is consistent as far as possible.Reconditioning trim ring 4 guarantees that the gap between spheroid and the ball pivot seat is 0.01-0.015.
Adopting the ball pivot seat of stupalith and adopt shallow cavity configuration on spheroid is core content of the present invention, and the gear shaping machine ball socket bearing of all employing similar structure all is considered to equivalence of the present invention and replaces.
The part that the present invention does not relate to prior art that maybe can adopt all same as the prior art is realized.
Claims (6)
1. a high speed gear shaper is with active and static pressure ball socket bearing structure, comprise club (1), ball pivot seat (2) and housing (3), the lower end of housing (3) links to each other with cutter spindle, the spheroid main body (6) of club (1) lower end is arranged in ball pivot seat (2), ball pivot seat (2) is installed in the fitting seat of housing (3) and by trim ring (4) and realizes adjusting along club (1) axial location and gap, the upper end of club (1) is stretched out outside the trim ring (4) and is linked to each other with crank, the center that it is characterized in that described club (1) is provided with oil hole (7), the centre of sphere of the through spheroid main body (6) of this oil hole (7), it radially is equipped with flow controller (5) in spheroid main body (6) upper edge, the oil inlet end of flow controller (5) communicates with the oil hole (7) of the through centre of sphere, the shallow annular chamber on the oil outlet end of flow controller (5) and spheroid main body (6) surface communicates, so that make described shallow chamber bear axial force up and down from the gear shaping main shaft because of alias formation dynamic pressure bearing capacity and static pressure bearing capacity when spheroid main body (6) move.
2. high speed gear shaper according to claim 1 active and static pressure ball socket bearing structure, it is characterized in that described flow controller (5) is made up of the major diameter oilhole and the minor diameter oilhole of mutual perforation, the oil outlet end of described minor diameter oilhole communicates with the shallow annular chamber on spheroid main body (6) surface, and the oil inlet end of described major diameter oilhole is connected with the oil hole (7) of through spheroid main body (6) centre of sphere.
3. high speed gear shaper according to claim 1 active and static pressure ball socket bearing structure, the quantity that it is characterized in that the shallow annular chamber on described spheroid main body (6) surface equals 1/2 of described flow controller (5) quantity at least, separate or continuous between the adjacent shallow annular chamber by connecting groove, with the uniformity of further enhancing spheroid main body (6) surface lubrication oil content cloth.
4. according to claim 1 or 3 described high speed gear shapers active and static pressure ball socket bearing structure, it is characterized in that the degree of depth in the shallow annular chamber on described spheroid main body (6) surface is grading structure, big more the closer to the degree of depth in the shallow chamber that flow controller (5) is located.
5. high speed gear shaper according to claim 1 is with active and static pressure ball socket bearing structure, it is characterized in that wear body that described ball pivot seat (2) is made for stupalith or deposits wearing layer at the parent metal material surface.
6. high speed gear shaper according to claim 1 active and static pressure ball socket bearing structure, the diameter that it is characterized in that described spheroid main body (6) is the 50-60 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110153765 CN102221039B (en) | 2011-06-09 | 2011-06-09 | Dynamic and static pressure ball socket bearing structure for high speed gear shaper |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110153765 CN102221039B (en) | 2011-06-09 | 2011-06-09 | Dynamic and static pressure ball socket bearing structure for high speed gear shaper |
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| CN102221039A true CN102221039A (en) | 2011-10-19 |
| CN102221039B CN102221039B (en) | 2013-04-10 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678734A (en) * | 2012-05-18 | 2012-09-19 | 中山市亚泰机械实业有限公司 | Connecting rod mechanism applied to engine |
| CN104459178A (en) * | 2014-12-05 | 2015-03-25 | 西安航空动力控制科技有限公司 | Ejector pin for mechanical speed sensor |
| CN104500556A (en) * | 2014-12-18 | 2015-04-08 | 东南大学 | High-bearing static-pressure bulb articulated mechanism with internal feedback restrictor |
| CN104728255A (en) * | 2015-03-27 | 2015-06-24 | 东南大学 | Static pressure ball hinge adopting bidirectional inner feedback throttling technology |
| CN108453722A (en) * | 2018-03-29 | 2018-08-28 | 清华大学深圳研究生院 | A kind of flexible mechanical arm based on elastic tube |
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| CN2455326Y (en) * | 2000-12-23 | 2001-10-24 | 广西绿洲热能设备有限公司 | Cyclic evaporative concentrator for organic liquid |
| US7455470B2 (en) * | 2005-12-12 | 2008-11-25 | John Brodowski | Swivel ball bearing |
| CN201231359Y (en) * | 2008-08-05 | 2009-05-06 | 宜昌长机科技有限责任公司 | Tool-position up and down position automatic adjustment device of gear planer |
| CN101429967A (en) * | 2008-12-19 | 2009-05-13 | 北京天高智机技术开发公司 | Three-freedom double-layer oil film type spherical hinge |
| CN201373098Y (en) * | 2009-03-16 | 2009-12-30 | 江苏恒威机械制造有限公司 | Anti-tipping hydraulic-balance tile section structure for connection rod |
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2011
- 2011-06-09 CN CN 201110153765 patent/CN102221039B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2455326Y (en) * | 2000-12-23 | 2001-10-24 | 广西绿洲热能设备有限公司 | Cyclic evaporative concentrator for organic liquid |
| US7455470B2 (en) * | 2005-12-12 | 2008-11-25 | John Brodowski | Swivel ball bearing |
| CN201231359Y (en) * | 2008-08-05 | 2009-05-06 | 宜昌长机科技有限责任公司 | Tool-position up and down position automatic adjustment device of gear planer |
| CN101429967A (en) * | 2008-12-19 | 2009-05-13 | 北京天高智机技术开发公司 | Three-freedom double-layer oil film type spherical hinge |
| CN201373098Y (en) * | 2009-03-16 | 2009-12-30 | 江苏恒威机械制造有限公司 | Anti-tipping hydraulic-balance tile section structure for connection rod |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678734A (en) * | 2012-05-18 | 2012-09-19 | 中山市亚泰机械实业有限公司 | Connecting rod mechanism applied to engine |
| CN104459178A (en) * | 2014-12-05 | 2015-03-25 | 西安航空动力控制科技有限公司 | Ejector pin for mechanical speed sensor |
| CN104500556A (en) * | 2014-12-18 | 2015-04-08 | 东南大学 | High-bearing static-pressure bulb articulated mechanism with internal feedback restrictor |
| CN104500556B (en) * | 2014-12-18 | 2017-02-22 | 东南大学 | High-bearing static-pressure bulb articulated mechanism with internal feedback restrictor |
| CN104728255A (en) * | 2015-03-27 | 2015-06-24 | 东南大学 | Static pressure ball hinge adopting bidirectional inner feedback throttling technology |
| CN108453722A (en) * | 2018-03-29 | 2018-08-28 | 清华大学深圳研究生院 | A kind of flexible mechanical arm based on elastic tube |
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| Publication number | Publication date |
|---|---|
| CN102221039B (en) | 2013-04-10 |
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