CN201818989U - Lubricating structure for main motor axial thrust bearing of rolling mill - Google Patents
Lubricating structure for main motor axial thrust bearing of rolling mill Download PDFInfo
- Publication number
- CN201818989U CN201818989U CN201020267516XU CN201020267516U CN201818989U CN 201818989 U CN201818989 U CN 201818989U CN 201020267516X U CN201020267516X U CN 201020267516XU CN 201020267516 U CN201020267516 U CN 201020267516U CN 201818989 U CN201818989 U CN 201818989U
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- pressure oil
- dynamic pressure
- static pressure
- thrust bearing
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- Sliding-Contact Bearings (AREA)
Abstract
The utility model discloses a lubricating structure for a main motor axial thrust bearing of a rolling mill. A dynamic oil inlet hose is arranged at an outer ring of a thrust bearing bush and communicated with a dynamic pressure oil inlet groove arranged in the bush; a plurality of dynamic pressure oil cavities are uniformly distributed on the thrust surface of the thrust bearing bush and communicated with the dynamic pressure oil inlet groove and a dynamic pressure oil return groove which is arranged on the thrust surface of the bush; the dynamic pressure oil return groove is communicated with an oil return filter arranged on the bush, and a first temperature measurement end is communicated with the plurality of dynamic pressure oil cavities; and a static pressure oil inlet hose is arranged at the outer ring of the thrust bearing bush and communicated with a static pressure oil inlet groove arranged in the bush; four static pressure oil cavities are uniformly distributed on the thrust surface of the thrust bearing bush and communicated with the static pressure oil inlet groove and a static pressure oil return groove that is arranged on the thrust surface of the bush; the static pressure oil return groove is communicated with the oil return filter arranged on the bush, and a second temperature measurement end is communicated with the static pressure oil cavities. In the lubricating structure, a liquid dynamic pressure lubricating structure and a liquid static pressure lubricating structure are simultaneously applied to a thrust bearing, thereby fitting for the running working condition of a rolling mill main motor and guaranteeing the normal running of the rolling mill.
Description
Technical field
The utility model relates to a kind of lubricating structure that is used for milling train main motor shaft axial thrust bearing.
Background technique
Milling train main motor shaft axial thrust bearing adopts the Hydrodynamic lubricating structure usually.Such hydrodynamic lubrication structure is not suitable for the operating mode of the frequent start and stop of milling train master motor commutation, and its be only applicable to motor speed be in at a high speed, and be not suitable for extremely low at a high speed.Therefore upper and lower roll motor axial float phenomenon appears in the milling train running, cause thrust bearing shell by heavy wear, temperature occurs and raise and the situation of the tripping operation of reporting to the police, the copper scale of wearing and tearing pollutes the motor lubrication system simultaneously, cause the lubricating oil filter frequent jams, influenced the normal operation of milling train.Now; also has a class lubricating structure in the axial thrust bearing field; it is the hydrostatic lubrication structure; the frequent start and stop commutation of its suitable motor and extremely low to operating mode at a high speed; but this structure thrust bearing is in the very big thrust load of carrying, when particularly being subjected to continue big load; the oil supply system of lubricating structure always works under the high load operating mode; its loss is serious; be subjected to the fatigue limitations of each element of hydraulic system simultaneously; its working life is limited, has restricted the application of hydrostatic lubrication structure on milling train main motor shaft axial thrust bearing.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of lubricating structure that is used for milling train main motor shaft axial thrust bearing, this lubricating structure is applied to thrust bearing simultaneously with Hydrodynamic lubricating structure and hydrostatic lubrication structure, adapt to the operating conditions of milling train master motor, guaranteed the normal operation of milling train.
For solving the problems of the technologies described above, the lubricating structure that the utility model is used for milling train main motor shaft axial thrust bearing comprises the thrust bearing bearing shell, the dynamic pressure oil inlet hose, the dynamic pressure oil-feed tank, the dynamic pressure oil-return groove, some dynamic pressure oil pockets, first thermometric end and the return filter, described dynamic pressure oil inlet hose is located at described thrust bearing bearing shell outer ring, described dynamic pressure oil-feed tank is located in the described thrust bearing bearing shell, described dynamic pressure oil inlet hose is communicated with described dynamic pressure oil-feed tank, described dynamic pressure oil-return groove is located at described thrust bearing bearing shell thrust surface, described some dynamic pressure oil pockets are rectangular deep trouths and are distributed in thrust bearing bearing shell thrust surface along described thrust bearing bearing shell spaced radial 90 degree, described some dynamic pressure oil pockets are communicated with described dynamic pressure oil-feed tank and dynamic pressure oil-return groove respectively, described first thermometric end and return filter are located at respectively on the described thrust bearing bearing shell, the described first thermometric end is communicated with described some dynamic pressure oil pockets, described return filter is communicated with described dynamic pressure oil-return groove, this lubricating structure also comprises the static pressure oil inlet hose, the static pressure oil-feed tank, the static pressure oil-return groove, four the static pressure oil pockets and the second thermometric end, described static pressure oil inlet hose is located at described thrust bearing bearing shell outer ring and is positioned at described dynamic pressure oil inlet hose inboard, described static pressure oil-feed tank is located in the described thrust bearing bearing shell, described static pressure oil inlet hose is communicated with described static pressure oil-feed tank, described static pressure oil-return groove is located at described thrust bearing bearing shell thrust surface, described four static pressure oil pockets are waist shape shallow slots and are distributed in thrust bearing bearing shell thrust surface along described thrust bearing bearing shell circle spacings 90 degree, described four static pressure oil pockets are communicated with described static pressure oil-feed tank and static pressure oil-return groove respectively, the described second thermometric end is located on the described thrust bearing bearing shell and is communicated with described four static pressure oil pockets, and described static pressure oil-return groove is communicated with described return filter.
Because being used for the lubricating structure of milling train main motor shaft axial thrust bearing, the utility model adopted technique scheme, be that the dynamic pressure oil inlet hose is located at thrust bearing bearing shell outer ring and is communicated in the interior dynamic pressure oil-feed tank of bearing shell, some dynamic pressure oil pockets are distributed in thrust bearing bearing shell thrust surface and are communicated with dynamic pressure oil-feed tank and the dynamic pressure oil-return groove of being located at the bearing shell thrust surface, the dynamic pressure oil-return groove is communicated in the return filter on the bearing shell, and the first thermometric end is communicated with the dynamic pressure oil pocket; The static pressure oil inlet hose is located at thrust bearing bearing shell outer ring and is communicated in the interior static pressure oil-feed tank of bearing shell, four static pressure oil pockets are distributed in thrust bearing bearing shell thrust surface and are communicated with static pressure oil-feed tank and the static pressure oil-return groove of being located at the bearing shell thrust surface, the static pressure oil-return groove is communicated in the return filter on the bearing shell, and the second thermometric end is communicated with the static pressure oil pocket; This lubricating structure is applied to thrust bearing simultaneously with Hydrodynamic lubricating structure and hydrostatic lubrication structure, has adapted to the operating conditions of milling train master motor, has guaranteed the normal operation of milling train.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and embodiments:
Fig. 1 is used for the schematic representation of the lubricating structure of milling train main motor shaft axial thrust bearing for the utility model.
Embodiment
As shown in Figure 1, the lubricating structure that the utility model is used for milling train main motor shaft axial thrust bearing comprises thrust bearing bearing shell 1, dynamic pressure oil inlet hose 7, the dynamic pressure oil-feed tank, the dynamic pressure oil-return groove, some dynamic pressure oil pockets 3, the first thermometric end 8 and return filter 9, described dynamic pressure oil inlet hose 7 is located at described thrust bearing bearing shell 1 outer ring, described dynamic pressure oil-feed tank is located in the described thrust bearing bearing shell 1, described dynamic pressure oil inlet hose 7 is communicated with described dynamic pressure oil-feed tank, described dynamic pressure oil-return groove is located at described thrust bearing bearing shell 1 thrust surface, described some dynamic pressure oil pockets 3 are rectangular deep trouths and are distributed in thrust bearing bearing shell 1 thrust surface along described thrust bearing bearing shell 1 spaced radial 90 degree, described some dynamic pressure oil pockets 3 are communicated with described dynamic pressure oil-feed tank and dynamic pressure oil-return groove respectively, described first thermometric end 8 and return filter 9 are located at respectively on the described thrust bearing bearing shell 1, the described first thermometric end 8 is communicated with described some dynamic pressure oil pockets 3, described return filter 9 is communicated with described dynamic pressure oil-return groove, this lubricating structure also comprises static pressure oil inlet hose 2, the static pressure oil-feed tank, the static pressure oil-return groove, four the static pressure oil pockets 4 and the second thermometric end 10, described static pressure oil inlet hose 2 is located at described thrust bearing bearing shell 1 outer ring and is positioned at described dynamic pressure oil inlet hose 7 inboards, described static pressure oil-feed tank is located in the described thrust bearing bearing shell 1, described static pressure oil inlet hose 2 is communicated with described static pressure oil-feed tank, described static pressure oil-return groove is located at described thrust bearing bearing shell 1 thrust surface, described four static pressure oil pockets 4 are waist shape shallow slots and are distributed in thrust bearing bearing shell 1 thrust surface along 1 circle spacings 90 of described thrust bearing bearing shell degree, described four static pressure oil pockets 4 are communicated with described static pressure oil-feed tank and static pressure oil-return groove respectively, the described second thermometric end 10 is located on the described thrust bearing bearing shell 1 and is communicated with described four static pressure oil pockets 4, and described static pressure oil-return groove is communicated with described return filter 9.Dynamic pressure oil inlet hose 7 and static pressure oil inlet hose 2 are connected separately oil supply system by pipe joint 61 and pipe joint 6 and flexible pipe 5 respectively with flexible pipe 51.
This lubricating structure has overcome the defective that thrust bearing uses the Hydrodynamic lubricating structure separately, the advantage integrated application of Hydrodynamic lubricating structure and hydrostatic lubrication structure on milling train main motor shaft axial thrust bearing, has been satisfied the operating conditions of milling train master motor.The dynamic pressure oil inlet hose connects low-pressure oil supply system in this lubricating structure, the static pressure oil inlet hose connects high-pressure fuel supply system, when milling train master motor normally moves and is high speed, the low pressure lubricant oil of low-pressure oil supply system enters the dynamic pressure oil pocket and forms low-pressure oil film with carrying dynamic pressure load at thrust surface by flexible pipe, oil groove, lubricant oil in the dynamic pressure oil pocket flow to return filter through oil-return groove and realizes lubrication oil circulation, and the first thermometric end can be used to monitor the oily warm of low pressure lubricant oil by external temperature measuring element; And turn to or during low speed in the start and stop of milling train master motor, the extreme pressure lubricant of high-pressure fuel supply system enters the static pressure oil pocket by flexible pipe, oil groove and forms the high pressure oil film to produce enough big static pressure bearing capacity, the high pressure oil film separates main shaft Thrust Faces and bearing thrust face, thereby overcome axial end and bearing thrust surface wear phenomenon that main motor electric motor starting or bearing occurs when stopping dry friction when the Hydrodynamic lubricating structure cause, improved the working life and the precision stability of electric machine main shaft; And behind electric motor starting, rely on dynamic pressure oil pocket effect to form bigger dynamic pressure bearing capacity, thereby reduce the high pressure loss of hydrostatic lubrication structure; The homogenization of high pressure oil film and good vibration resistance have guaranteed that electric machine main shaft has very high smoothness of operation.The oil return of static pressure oil pocket flow to return filter through oil-return groove and realizes lubrication oil circulation, and the second thermometric end can be used to monitor the oil temperature of extreme pressure lubricant to detect the operating conditions of motor by external temperature measuring element.
Claims (1)
1. lubricating structure that is used for milling train main motor shaft axial thrust bearing, comprise the thrust bearing bearing shell, the dynamic pressure oil inlet hose, the dynamic pressure oil-feed tank, the dynamic pressure oil-return groove, some dynamic pressure oil pockets, first thermometric end and the return filter, described dynamic pressure oil inlet hose is located at described thrust bearing bearing shell outer ring, described dynamic pressure oil-feed tank is located in the described thrust bearing bearing shell, described dynamic pressure oil inlet hose is communicated with described dynamic pressure oil-feed tank, described dynamic pressure oil-return groove is located at described thrust bearing bearing shell thrust surface, described some dynamic pressure oil pockets are rectangular deep trouths and are distributed in thrust bearing bearing shell thrust surface along described thrust bearing bearing shell spaced radial 90 degree, described some dynamic pressure oil pockets are communicated with described dynamic pressure oil-feed tank and dynamic pressure oil-return groove respectively, described first thermometric end and return filter are located at respectively on the described thrust bearing bearing shell, the described first thermometric end is communicated with described some dynamic pressure oil pockets, described return filter is communicated with described dynamic pressure oil-return groove, it is characterized in that: also comprise the static pressure oil inlet hose, the static pressure oil-feed tank, the static pressure oil-return groove, four the static pressure oil pockets and the second thermometric end, described static pressure oil inlet hose is located at described thrust bearing bearing shell outer ring and is positioned at described dynamic pressure oil inlet hose inboard, described static pressure oil-feed tank is located in the described thrust bearing bearing shell, described static pressure oil inlet hose is communicated with described static pressure oil-feed tank, described static pressure oil-return groove is located at described thrust bearing bearing shell thrust surface, described four static pressure oil pockets are waist shape shallow slots and are distributed in thrust bearing bearing shell thrust surface along described thrust bearing bearing shell circle spacings 90 degree, described four static pressure oil pockets are communicated with described static pressure oil-feed tank and static pressure oil-return groove respectively, the described second thermometric end is located on the described thrust bearing bearing shell and is communicated with described four static pressure oil pockets, and described static pressure oil-return groove is communicated with described return filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020267516XU CN201818989U (en) | 2010-07-22 | 2010-07-22 | Lubricating structure for main motor axial thrust bearing of rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020267516XU CN201818989U (en) | 2010-07-22 | 2010-07-22 | Lubricating structure for main motor axial thrust bearing of rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201818989U true CN201818989U (en) | 2011-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020267516XU Expired - Fee Related CN201818989U (en) | 2010-07-22 | 2010-07-22 | Lubricating structure for main motor axial thrust bearing of rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201818989U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671578A (en) * | 2012-09-26 | 2014-03-26 | 上海阔步机械模具有限公司 | Lubricating device for dynamic pressure bearing |
| CN103826767A (en) * | 2011-09-29 | 2014-05-28 | 西门子工业公司 | Hybrid hydrodynamic and hydrostatic bearing bushing and lubrication system for rolling mill |
| CN109707728A (en) * | 2019-03-12 | 2019-05-03 | 哈尔滨理工大学 | A kind of novel dynamic and static pressure tilting thrust bearing thrust tile structure |
-
2010
- 2010-07-22 CN CN201020267516XU patent/CN201818989U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103826767A (en) * | 2011-09-29 | 2014-05-28 | 西门子工业公司 | Hybrid hydrodynamic and hydrostatic bearing bushing and lubrication system for rolling mill |
| CN103826767B (en) * | 2011-09-29 | 2016-03-30 | 西门子工业公司 | Milling train hybrid bearing lining and lubricating system |
| CN103671578A (en) * | 2012-09-26 | 2014-03-26 | 上海阔步机械模具有限公司 | Lubricating device for dynamic pressure bearing |
| CN109707728A (en) * | 2019-03-12 | 2019-05-03 | 哈尔滨理工大学 | A kind of novel dynamic and static pressure tilting thrust bearing thrust tile structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI NETUREN CO., LTD. Free format text: FORMER OWNER: SHANGHAI BAOGANG EQUIPMENT OVERHAUL CO., LTD. Effective date: 20120516 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201900 BAOSHAN, SHANGHAI TO: 201821 JIADING, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120516 Address after: 201821 No. 651 North Highway, Shanghai, Jiading District Patentee after: SHANGHAI NETUREN CO., LTD. Address before: Five road 201900 Shanghai city Baoshan District Baosteel Weiyi, machine Patentee before: Shanghai Baogang Equipment Overhaul Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20130722 |