CN202343593U - Spinning machine with dynamic and static pressure oil film bearing - Google Patents
Spinning machine with dynamic and static pressure oil film bearing Download PDFInfo
- Publication number
- CN202343593U CN202343593U CN2011205204346U CN201120520434U CN202343593U CN 202343593 U CN202343593 U CN 202343593U CN 2011205204346 U CN2011205204346 U CN 2011205204346U CN 201120520434 U CN201120520434 U CN 201120520434U CN 202343593 U CN202343593 U CN 202343593U
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- Prior art keywords
- bearing
- oil film
- rotor
- dynamic
- filmatic
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Abstract
The utility model provides a spinning machine with a dynamic and static pressure oil film bearing. The spinning machine consists of a support structure, a support bearing, a dynamic and static pressure oil film bearing device and a rotor, wherein the rotor passes through the dynamic and static pressure oil film bearing device; the support bearing is fixed to the support structure; the dynamic and static pressure oil film bearing device comprises an oil film bearing with a full-circle structure, and a plurality of grooves are formed on the inner side of the oil film bearing; and oil cavities with different depths are formed between the oil film bearing and the rotor. According to the spinning machine, when a system operates, the rotor is floated by a layer of pressure oil film and is suspended between the bearings before being driven by a motor and mechanical friction and abrasion are avoided, so that the service life of the bearing is prolonged, and the bearing is high in accuracy retentivity.
Description
Technical field
The utility model 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 the utility model is to the problems referred to above a kind of Laying head that uses hybrid hydrodynamic oil film journal bearing to be provided, and solves the above-mentioned problem of putting forward.
The technical scheme that the utility model 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.
Said 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.
Said hybrid hydrodynamic oil film journal bearing device adopts wholecircle structure filmatic bearing, and the filmatic bearing inboard has depth cavity configuration.
Said wholecircle structure filmatic bearing is meant that filmatic bearing adopts integral ring-shaped design, and is one-body molded in process, do not adopt the multi-disc splitting mode.
Said 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, and makes filmatic bearing form the structure in depth chamber.
The characteristics of the utility model 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, is that oil film rigidity obtains fully playing utilization.During working rotor, oil film rigidity is the stack of bearing static rigidity and dynamic rate, and very strong bearing capacity is arranged." 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 the utility model sketch map.
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 specific embodiment of accompanying drawing the utility model.
As shown in Figure 1, a kind of Laying head that uses hybrid hydrodynamic oil film journal bearing is made up of supporting construction (1), spring bearing (2), hybrid hydrodynamic oil film journal bearing device (3), rotor (4).Rotor (4) is fixed on the supporting construction (1) through hybrid hydrodynamic oil film journal bearing device (3), spring bearing (2), drives other position work of laying head that rotor (4) drives the dish of weaving silk through external force, accomplishes 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 has an annular groove (7), and 6 grooves (6) are coupled together, and makes filmatic bearing 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.
Claims (3)
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.
3. a kind of Laying head that uses hybrid hydrodynamic oil film journal bearing according to claim 1 is characterized in that: the inboard interlude of described filmatic bearing has an annular groove, and 6 grooves are coupled together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205204346U CN202343593U (en) | 2011-12-14 | 2011-12-14 | Spinning machine with dynamic and static pressure oil film bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205204346U CN202343593U (en) | 2011-12-14 | 2011-12-14 | Spinning machine with dynamic and static pressure oil film bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202343593U true CN202343593U (en) | 2012-07-25 |
Family
ID=46532619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205204346U Expired - Lifetime CN202343593U (en) | 2011-12-14 | 2011-12-14 | Spinning machine with dynamic and static pressure oil film bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202343593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430593A (en) * | 2011-12-14 | 2012-05-02 | 汉威广园(广州)机械设备有限公司 | Laying head using dynamic-static pressure oil film bearing |
-
2011
- 2011-12-14 CN CN2011205204346U patent/CN202343593U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430593A (en) * | 2011-12-14 | 2012-05-02 | 汉威广园(广州)机械设备有限公司 | Laying head using dynamic-static pressure oil film bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |