CN102430593A - Laying head using dynamic-static pressure oil film bearing - Google Patents
Laying head using dynamic-static pressure oil film bearing Download PDFInfo
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- CN102430593A CN102430593A CN2011104157342A CN201110415734A CN102430593A CN 102430593 A CN102430593 A CN 102430593A CN 2011104157342 A CN2011104157342 A CN 2011104157342A CN 201110415734 A CN201110415734 A CN 201110415734A CN 102430593 A CN102430593 A CN 102430593A
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- laying head
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Abstract
The invention provides a laying head using a dynamic-static pressure oil film bearing. The laying head comprises a support structure, a support bearing, a dynamic-static pressure oil film bearing device and a rotor, wherein the rotor is fixed on the support structure through the dynamic-static pressure oil film bearing device and the support bearing, the dynamic-static pressure oil film bearing device adopts the oil film bearing with an all-round structure, a plurality of grooves are arranged on the surface on the inner side of the oil film bearing, an oil cavity with different depths is formed between the oil film bearing and the rotor, when a system works, the rotor floats up under the action of a layer of pressure oil film, the rotor is suspended between the bearings when a motor is not driven, and mechanical friction and abrasion are avoided, therefore the service life of each bearing is further prolonged and good precision retentivity is realized.
Description
Technical field
The present invention relates to high-speed rod production equipment field, particularly a kind of Laying head that uses hybrid hydrodynamic oil film journal bearing.
Background technology
In the high-speed rod production process, Laying head is one of nucleus equipment, and its effect is to become coil to straight finished product wire rod so that transportation and use.The Laying head action part mainly is made up of a rotary body and a swivelling pipe, and swivelling pipe is installed in a rotating body.Rotor passes through bearing fixing on the stator case of gearbox.Rotor receives power traction, and around its axle rotation, speed can reach 2700 rev/mins even higher.The design linear speed of wire rod in Laying head is up to 112m/s, and maximum speed has reached 160m/s at present in continuous technology upgrading process.So the rotating speed of Laying head is also increasingly high now.
Laying head is in running up, and when rotating speed near limit speed the time, rotor is to stator or more fierce to the vibration of supporter, to the extruding of bearing with to impact loss just bigger.Because the rotation of the high speed of rotor, the mechanical friction between rotor and the bearing is just even more serious with wearing and tearing.
Patent: the Laying head (patent No.: mention 200580005727.8) in the rotor and the bearing contact position of Laying head the magnetic vibration absorber is installed with vibration absorber; Reduce the wearing and tearing that vibration produces through magnetic bearing, and another embodiment mentions hydraulic shock-absorbing device, hydraulic film bearing comprises blade profile bearing or axle sleeve; Tilting pad bearing radially preferably; Be provided with three blades, arrange asymmetricly, be squash type.
But the main fluid bearing of mentioning of this patent adopts the hydrodynamic bearing design, in start-up course, causes rotor to contact with filmatic bearing easily, causes wearing and tearing.Design simultaneously is comparatively trifling, and the machinery when being unfavorable for producing is installed and the maintenance dismounting.
Summary of the invention
The purpose of this invention is to provide a kind of Laying head that uses hybrid hydrodynamic oil film journal bearing, solve the above-mentioned problem of putting forward.
The technical scheme that the present invention adopts is: a kind of Laying head that uses hybrid hydrodynamic oil film journal bearing; Form by supporting construction, spring bearing, hybrid hydrodynamic oil film journal bearing device, rotor; Rotor is fixed on the supporting construction through hybrid hydrodynamic oil film journal bearing device, spring bearing; Drive other position work of laying head that rotor drives the dish of weaving silk through external force, accomplish the operation of weaving silk.
Described hybrid hydrodynamic oil film journal bearing device is made up of filmatic bearing, oil pocket, and filmatic bearing is the wholecircle structure, and rigidity is big, and bearing capacity is high.
Described hybrid hydrodynamic oil film journal bearing device adopts wholecircle structure filmatic bearing, and the filmatic bearing inboard has depth cavity configuration.Through reason hydraulic way oil circuit lubricating oil is injected the filmatic bearing inner chamber through oil circuit before the work of hybrid hydrodynamic oil film journal bearing device, rotor is floated by one deck pressure oil film, and rotor for when motor-driven, to be suspended between the bearing mechanical friction and wear does not take place.
Described wholecircle structure filmatic bearing is meant that filmatic bearing adopts integral ring-shaped design, and is one-body molded in process.
Described depth cavity configuration is meant at filmatic bearing inboard, 6 grooves that evenly distributed, and there is osculum at groove two, is connected with oil circuit; The inboard interlude of filmatic bearing has a ring groove, and 6 grooves are coupled together, and makes filmatic bearing form the structure in depth chamber.
Characteristics of the present invention are owing to adopted wholecircle structural formula filmatic bearing and surperficial depth cavity configuration oil pocket bearing; Rotor is floated by one deck pressure oil film during system works; Rotor is for to be suspended between the bearing when motor-driven; Mechanical friction and wear does not take place, thereby improve bearing life, and good precision stability is arranged.When the motor-driven rotor rotates, because forming dynamic and static pressure naturally, alias carries oil film in the bearing oil pocket, bearing becomes the hydrodynamic sliding bearing with static pressure pressure field.Compare with three, five pieces watts, dynamic and hydrostatic bearing is the wholecircle structure, and bearing and box body hole contact area are big, for being rigidly connected, makes oil film rigidity obtain fully playing utilization.During working rotor, oil film rigidity makes the stack of bearing static rigidity and dynamic rate, and very strong bearing capacity is arranged, and " homogenizing " effect of pressure oil film can make the rotor rotating accuracy be higher than the machining accuracy of axle journal and bearing.
Description of drawings
Fig. 1 is a sketch map of the present invention.
Fig. 2 is the sketch map of filmatic bearing.
Fig. 3 is a side cross-sectional view in the filmatic bearing.
Among the figure: 1-supporting construction, 2-spring bearing, 3-hybrid hydrodynamic oil film journal bearing device, 4-rotor, 5-filmatic bearing, 6-groove, 7-annular groove.
The specific embodiment
Be described further below in conjunction with the accompanying drawing specific embodiments of the invention.
As shown in Figure 1; A kind of Laying head that uses hybrid hydrodynamic oil film journal bearing; Rotor (4) is fixed on the supporting construction (1) through hybrid hydrodynamic oil film journal bearing device (3), spring bearing (2); Drive other position work of laying head that rotor (4) drives the dish of weaving silk through external force, accomplish the operation of weaving silk.
As shown in Figure 2, filmatic bearing (5) is integral ring-shaped design, and is one-body molded in process, and its rigidity is big, and bearing capacity is high.Hybrid hydrodynamic oil film journal bearing device (3) is made up of the cavity that forms between filmatic bearing (5) and filmatic bearing (5) and the rotor (4).
As shown in Figure 3, filmatic bearing (5) inboard, six grooves (6) that evenly distributed, there is osculum at groove (6) two, is connected with oil circuit; The inboard interlude of filmatic bearing (5) has an annular groove (7), and 6 grooves (6) are coupled together, and makes filmatic bearing (5) form the structure in depth chamber.
Hybrid hydrodynamic oil film journal bearing (5) starts oil supply system earlier before rotor (4) starts; Utilize hydraulic way that lubricating oil is injected the inner chamber between filmatic bearing (5) and the rotor (4) through oil circuit, utilize the bearing capacity of oil film in the inner chamber that is full of static pressure to support static rotor (4).After starting rotor (4), along with rotor (4) rotating speed increases, dynamic pressure effect increases, and waits to reach the after-applied service load of desired speed, goes up whole load by dynamic pressure and hydrostatic effects while bear rotor (4).
Filmatic bearing (5) receive rotor (4) deadweight and when rotating at a high speed because of imbalance according to eccentric force.In filmatic bearing (5), introduce static pressure, eliminate the rotor deadweight, be suspended in when making rotor starting in the middle of the spring bearing (2), reduce vibrations.
The present invention is characterized in having the surperficial depth cavity configuration in the wholecircle structure filmatic bearing (5); And rotor forms oil pocket between (4); Rotor during system works (4) is floated by one deck pressure oil film, and rotor (4) for when motor-driven, to be suspended between the bearing mechanical friction and wear does not take place; Thereby the raising bearing life, and good precision stability is arranged.When motor-driven rotor (4) rotates, because forming dynamic and static pressure naturally, alias carries oil film in the bearing oil pocket, bearing becomes the hydrodynamic sliding bearing with static pressure pressure field.Compare with three, five pieces watts, dynamic and hydrostatic bearing is the wholecircle structure, and bearing and box body hole contact area are big, for being rigidly connected, makes oil film rigidity obtain fully playing utilization.During rotor (4) work, oil film rigidity makes the stack of bearing static rigidity and dynamic rate, and very strong bearing capacity is arranged." homogenizing " effect of pressure oil film can make rotor (4) rotating accuracy be higher than the machining accuracy of axle journal and bearing.
Claims (4)
1. Laying head that uses hybrid hydrodynamic oil film journal bearing; Form by supporting construction, spring bearing, hybrid hydrodynamic oil film journal bearing device, rotor; Adopt the hydraulic filmatic bearing, rotor is fixed on the supporting construction through hybrid hydrodynamic oil film journal bearing device, spring bearing, it is characterized in that: described hybrid hydrodynamic oil film journal bearing device is made up of filmatic bearing, oil pocket; Filmatic bearing is the wholecircle structure, and the filmatic bearing inboard has depth cavity configuration.
2. a kind of Laying head that uses hybrid hydrodynamic oil film journal bearing according to claim 1 is characterized in that: described depth cavity configuration is meant at filmatic bearing inboard, 6 grooves that evenly distributed, and there is osculum at groove two, is connected with oil circuit; The inboard interlude of filmatic bearing has an annular groove, and 6 grooves are coupled together.
3. a kind of Laying head that uses hybrid hydrodynamic oil film journal bearing according to claim 1; It is characterized in that: through hydraulic way lubricating oil is injected the filmatic bearing inner chamber through oil circuit before the work of described hybrid hydrodynamic oil film journal bearing device; Rotor is floated by one deck pressure oil film; Rotor has been suspended between the bearing when motor-driven, and mechanical friction and wear does not take place.
4. a kind of Laying head that uses hybrid hydrodynamic oil film journal bearing according to claim 1; It is characterized in that: described rotor is when motor-driven is rotated; Carry oil film because alias forms dynamic and static pressure naturally in the filmatic bearing oil pocket, bearing becomes the hydrodynamic sliding bearing with static pressure pressure field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104157342A CN102430593A (en) | 2011-12-14 | 2011-12-14 | Laying head using dynamic-static pressure oil film bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104157342A CN102430593A (en) | 2011-12-14 | 2011-12-14 | Laying head using dynamic-static pressure oil film bearing |
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| Publication Number | Publication Date |
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| CN102430593A true CN102430593A (en) | 2012-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011104157342A Pending CN102430593A (en) | 2011-12-14 | 2011-12-14 | Laying head using dynamic-static pressure oil film bearing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808847A (en) * | 2012-08-21 | 2012-12-05 | 北京京诚瑞信长材工程技术有限公司 | Split type dynamic pressure oil film bearing for wire laying machine |
| CN112872056A (en) * | 2020-12-31 | 2021-06-01 | 汉威广园(广州)机械设备有限公司 | Laying head |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0694034A (en) * | 1992-09-11 | 1994-04-05 | Matsushita Electric Ind Co Ltd | Bearing device |
| CN1487211A (en) * | 2003-08-01 | 2004-04-07 | 云南省机械研究设计院 | Machining process of axle bush inner wall shallow cavity for dynamic and hydrostatic bearing |
| CN1921961A (en) * | 2004-02-24 | 2007-02-28 | 达涅利机械工业有限公司 | Laying head with a vibration damping device |
| CN101579841A (en) * | 2009-06-17 | 2009-11-18 | 重庆大学 | Hydro-hybrid bearing used for grinding wheel main shaft of grinding machine |
| CN201521556U (en) * | 2009-07-08 | 2010-07-07 | 路文忠 | Hybrid spindle structure adopting electro-hydraulic servo valve for control |
| CN202343593U (en) * | 2011-12-14 | 2012-07-25 | 汉威广园(广州)机械设备有限公司 | Spinning machine with dynamic and static pressure oil film bearing |
-
2011
- 2011-12-14 CN CN2011104157342A patent/CN102430593A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0694034A (en) * | 1992-09-11 | 1994-04-05 | Matsushita Electric Ind Co Ltd | Bearing device |
| CN1487211A (en) * | 2003-08-01 | 2004-04-07 | 云南省机械研究设计院 | Machining process of axle bush inner wall shallow cavity for dynamic and hydrostatic bearing |
| CN1921961A (en) * | 2004-02-24 | 2007-02-28 | 达涅利机械工业有限公司 | Laying head with a vibration damping device |
| CN101579841A (en) * | 2009-06-17 | 2009-11-18 | 重庆大学 | Hydro-hybrid bearing used for grinding wheel main shaft of grinding machine |
| CN201521556U (en) * | 2009-07-08 | 2010-07-07 | 路文忠 | Hybrid spindle structure adopting electro-hydraulic servo valve for control |
| CN202343593U (en) * | 2011-12-14 | 2012-07-25 | 汉威广园(广州)机械设备有限公司 | Spinning machine with dynamic and static pressure oil film bearing |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808847A (en) * | 2012-08-21 | 2012-12-05 | 北京京诚瑞信长材工程技术有限公司 | Split type dynamic pressure oil film bearing for wire laying machine |
| CN102808847B (en) * | 2012-08-21 | 2015-04-29 | 北京京诚瑞信长材工程技术有限公司 | Split type dynamic pressure oil film bearing for wire laying machine |
| CN112872056A (en) * | 2020-12-31 | 2021-06-01 | 汉威广园(广州)机械设备有限公司 | Laying head |
| CN112872056B (en) * | 2020-12-31 | 2022-05-20 | 汉威广园(广州)机械设备有限公司 | Laying head |
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Application publication date: 20120502 |