CN111998062A - Maintenance method for damage of bearing for planet wheel of shield machine driving reducer - Google Patents
Maintenance method for damage of bearing for planet wheel of shield machine driving reducer Download PDFInfo
- Publication number
- CN111998062A CN111998062A CN202010704047.1A CN202010704047A CN111998062A CN 111998062 A CN111998062 A CN 111998062A CN 202010704047 A CN202010704047 A CN 202010704047A CN 111998062 A CN111998062 A CN 111998062A
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- Prior art keywords
- bearing
- planet
- planet wheel
- wheel
- machine driving
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 20
- 238000012423 maintenance Methods 0.000 title claims abstract description 16
- 230000005641 tunneling Effects 0.000 claims description 7
- 238000005461 lubrication Methods 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0469—Bearings or seals
- F16H57/0471—Bearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H2057/0081—Fixing of, or adapting to transmission failure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
- F16H2057/085—Bearings for orbital gears
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Retarders (AREA)
Abstract
The invention discloses a maintenance method for damage of a bearing for a planet wheel of a shield machine driving reducer, wherein the reducer is provided with the planet wheel and a planet carrier, the planet wheel is arranged on the planet carrier, a mandrel is arranged at each planet wheel of the planet carrier, the planet wheel is internally provided with the bearing for the planet wheel, the maintenance method adopts a self-aligning roller bearing to replace the original bearing to realize replacement of the damaged bearing, the planet carrier adopts an integral frame type structure, the number of the planet wheels is more than 2, and the planet carrier is of a space frame structure formed by connecting two annular side plates and uniformly distributed support columns. According to the method for maintaining the damaged bearing for the planet wheel of the shield machine driving reducer, the conventional bearing (such as a self-aligning roller bearing) is adopted to replace the original bearing, the damaged bearing is replaced by the method, and meanwhile, the maintenance period is controlled within a short time.
Description
Technical Field
The invention relates to the technical field of bearings, in particular to a method for maintaining damaged bearings for planet wheels of a driving reducer of a shield tunneling machine.
Background
Simple (single row) planetary gear mechanisms are the basis of speed change mechanisms, and the speed change mechanisms of automatic transmissions generally consist of two or more than three rows of planetary gear mechanisms. A simple planetary gear mechanism comprises a sun gear, a number of planet gears and a ring gear, wherein the planet gears are supported by a fixed shaft of a planet carrier, allowing the planet gears to rotate on a supporting shaft. The planetary gears and the adjacent sun gears and the adjacent ring gears are always in a constant meshing state, and the bevel gears are usually adopted to improve the working smoothness.
In a simple planetary gear mechanism, a sun gear is positioned at the center of the planetary gear mechanism, the sun gear and the planet gears are in constant mesh, and the meshing rotating directions of the two outer gears are opposite. Just as the sun is located at the center of the solar system, the sun gear is so named for its location. Besides the rotation of the planet wheels around the supporting shaft of the planet carrier, under some working conditions, the planet wheels can rotate around the central axis of the sun wheel under the driving of the planet carrier, like the rotation of the earth and the revolution around the sun, and when the condition occurs, the transmission mode of the action of the planetary gear mechanism is called. In the whole planetary gear mechanism, if the planetary gears rotate, and the planet carrier is fixed, the transmission similar to a parallel shaft type transmission is called a fixed shaft transmission. The gear ring is an internal gear which is constantly meshed with the planet gears, and the internal gear is meshed with the external gear, and the rotation directions of the internal gear and the external gear are the same. The number of the planetary gears depends on the design load of the transmission, and is usually three or four, and the more the number of the planetary gears bears the greater load;
when an imported shield machine driving speed reducer is maintained, a bearing for a planet wheel is damaged in a common damage mode, the damaged bearing is replaced in a common maintenance method, but the bearing for the planet wheel of the imported speed reducer is an extraordinary bearing without a bearing outer ring or a bearing inner ring, the bearing is not available at home, import is mainly depended on, and the ordering period is long, so that the maintenance method for the bearing for the planet wheel of the shield machine driving speed reducer is provided.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the following technical scheme: the maintenance method for the damage of the bearing for the planet wheel of the driving speed reducer of the shield tunneling machine is characterized in that the planet wheel and a planet carrier are installed on the speed reducer, the planet wheel is installed on the planet carrier, a mandrel is installed at the position of each planet wheel of the planet carrier, the bearing for the planet wheel is arranged inside the planet wheel, and the maintenance method adopts a self-aligning roller bearing to replace the original bearing, so that the replacement of the damaged bearing is realized.
Preferably, the planet carrier adopts an integral frame type structure, and the number of the planet wheels is more than 2.
Preferably, the planet carrier is a space frame structure formed by connecting two annular side plates by uniformly distributed support columns.
Preferably, the planet wheel bearing adopts a thin oil lubrication mode.
Preferably, the mandrel is of cylindrical configuration.
Compared with the prior art, the invention has the following beneficial effects: according to the method for maintaining the damaged bearing for the planet wheel of the shield machine driving reducer, the conventional bearing (such as a self-aligning roller bearing) is adopted to replace the original bearing, the damaged bearing is replaced by the method, and meanwhile, the maintenance period is controlled within a short time.
Drawings
FIG. 1 is a view showing a maintenance structure of a damaged bearing for a planetary gear of a shield driving reducer of the present invention;
FIG. 2 is a schematic view of a bearing structure for a planet wheel of a driving reducer of a shield tunneling machine according to the present invention;
in the figure: 1. a planet wheel; 2. a bearing for the planet wheel; 3. a mandrel; 4. a planet carrier.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the invention discloses a method for maintaining damaged bearings for planet wheels of a shield machine driving reducer, wherein the reducer is provided with the planet wheels 1 and a planet carrier 4, the planet wheels 1 are arranged on the planet carrier 4, a mandrel is arranged at each planet wheel of the planet carrier, the planet wheels 1 are internally provided with the bearings 2 for the planet wheels, and the maintenance method adopts a self-aligning roller bearing to replace the original bearing to realize the replacement of the damaged bearing.
The planet carrier 4 adopts an integral frame type structure, and the number of planet wheels is more than 2; the planet carrier 4 is a space frame structure formed by connecting two annular side plates and supporting columns which are uniformly distributed between the two annular side plates; the planet wheel bearing 2 adopts a thin oil lubrication mode; the mandrel 3 is of cylindrical configuration.
It should be noted that, the maintenance method is to replace the original bearing with a common bearing (such as a self-aligning roller bearing), and the method realizes the replacement of the damaged bearing, and the maintenance period is controlled in a short time.
The method is characterized in that:
1) the overall dimension of the bearing used for replacement is similar to that of the original bearing, and the service life calculation of the new bearing is in accordance with the design requirement;
2) the mandrel is matched with a new bearing to be continuously utilized or reprocessed, and the newly processed mandrel needs to ensure the strength of the original mandrel;
3) the planet wheel is matched with a new bearing to perform reaming treatment and process a required clamp spring groove, and the wall thickness of the reamed planet wheel meets the design requirement;
4) the planet carrier should be processed correspondingly by matching with a new manufacturing mandrel (if any).
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a shield constructs quick-witted drive reduction gear for planet wheel bearing damage's maintenance method, installs planet wheel (1), planet carrier (4) on this reduction gear, its characterized in that: the maintenance method is characterized in that the planetary wheel (1) is installed on the planetary frame (4), the central spindle (3) is installed at each planetary wheel of the planetary frame (4), the planetary wheel (1) is internally provided with the bearing (2) for the planetary wheel, the self-aligning roller bearing is adopted to replace the original bearing, and the replacement of the damaged bearing is realized.
2. The method for repairing the damaged bearing for the planet gear of the shield tunneling machine driving reducer according to claim 1, wherein the method comprises the following steps: the planet carrier (4) adopts an integral frame type structure, and the number of planet wheels is more than 2.
3. The method for repairing the damaged bearing for the planet gear of the shield tunneling machine driving reducer according to claim 1, wherein the method comprises the following steps: the planet carrier (4) is a space frame structure formed by connecting two annular side plates and supporting columns which are uniformly distributed between the two annular side plates.
4. The method for repairing the damaged bearing for the planet gear of the shield tunneling machine driving reducer according to claim 1, wherein the method comprises the following steps: the planet wheel bearing (2) adopts a thin oil lubrication mode.
5. The method for repairing the damaged bearing for the planet gear of the shield tunneling machine driving reducer according to claim 1, wherein the method comprises the following steps: the mandrel (3) is of a cylindrical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010704047.1A CN111998062A (en) | 2020-10-22 | 2020-10-22 | Maintenance method for damage of bearing for planet wheel of shield machine driving reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010704047.1A CN111998062A (en) | 2020-10-22 | 2020-10-22 | Maintenance method for damage of bearing for planet wheel of shield machine driving reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111998062A true CN111998062A (en) | 2020-11-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010704047.1A Pending CN111998062A (en) | 2020-10-22 | 2020-10-22 | Maintenance method for damage of bearing for planet wheel of shield machine driving reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111998062A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201461868U (en) * | 2009-08-27 | 2010-05-12 | 三一重机有限公司 | Wheel redactor for planetary gear |
| CN102278424A (en) * | 2011-08-01 | 2011-12-14 | 大连华锐股份有限公司 | Cutting speed reducer of tunnel boring machine |
| CN104209722A (en) * | 2014-08-12 | 2014-12-17 | 中国船舶重工集团公司第七�三研究所 | Maintenance method for planetary wheel bearing of power dividing type planetary gear speed reducer |
| CN206329721U (en) * | 2016-11-07 | 2017-07-14 | 株洲格尔科技有限责任公司 | The planet wheel spindle mounting structure of shield machine reducer |
| CN108412963A (en) * | 2018-05-15 | 2018-08-17 | 湘潭大学 | A kind of big torque actuated and high thrust load integrated device |
-
2020
- 2020-10-22 CN CN202010704047.1A patent/CN111998062A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201461868U (en) * | 2009-08-27 | 2010-05-12 | 三一重机有限公司 | Wheel redactor for planetary gear |
| CN102278424A (en) * | 2011-08-01 | 2011-12-14 | 大连华锐股份有限公司 | Cutting speed reducer of tunnel boring machine |
| CN104209722A (en) * | 2014-08-12 | 2014-12-17 | 中国船舶重工集团公司第七�三研究所 | Maintenance method for planetary wheel bearing of power dividing type planetary gear speed reducer |
| CN206329721U (en) * | 2016-11-07 | 2017-07-14 | 株洲格尔科技有限责任公司 | The planet wheel spindle mounting structure of shield machine reducer |
| CN108412963A (en) * | 2018-05-15 | 2018-08-17 | 湘潭大学 | A kind of big torque actuated and high thrust load integrated device |
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Application publication date: 20201127 |