CN105345389A - Method for repairing damaged bearing block - Google Patents
Method for repairing damaged bearing block Download PDFInfo
- Publication number
- CN105345389A CN105345389A CN201510987684.3A CN201510987684A CN105345389A CN 105345389 A CN105345389 A CN 105345389A CN 201510987684 A CN201510987684 A CN 201510987684A CN 105345389 A CN105345389 A CN 105345389A
- Authority
- CN
- China
- Prior art keywords
- bearing block
- bearing
- milling
- restorative procedure
- saddle bore
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses a method for repairing a damaged bearing block. Firstly, the diameter of a severely worn part of a bearing block hole is measured, the radius of the bearing block hole at the severely worn part is obtained through calculation, then the upper end surface and the lower end surface of a bearing housing of the bearing block are milled respectively according to the radius of the damaged bearing block hole, the milling thickness is at least equal to the square root of the difference between R<2> and r<2>, and the milled bearing block hole is enlarged until the size of the bearing block hole is equal to the hole size of an undamaged bearing block after the bearing block hole enlargement operation. According to the scheme, the mode of matching of milling and enlargement of the bearing block hole is adopted to replace cold welding, bushing or deposition in the prior art, accordingly, the method is not influenced by the thickness and the structure of the bearing block, and the universality of the method for repairing the damaged bearing block of a speed reducer is improved.
Description
Technical field
The present invention relates to reductor technical field, the restorative procedure particularly after a kind of bearing block damage.
Background technology
The reductor of disintegrating machine is generally applied in the environment that load is large and vibration is large, the bearing of reductor can apply larger active force to bearing block, in the process of long-term work, small plastic deformation can be there is in bearing block, now the axis hole of bearing block is greater than bearing outer ring, and operationally, bearing outer ring can rotate in bearing block, the temperature of reductor is raised, affects transmission efficiency.Solve method that bearing outer ring rotates in bearing block in prior art and have the bushing or deposition of bearing block cold welding, bearing block, cold welding and deposition technology are applicable to the situation that axle bed hole small size damages, for the reparation of above-mentioned large area bearing block, cost is relatively high, the bushing restriction being easily subject to end cap screwed hole of bearing block, be not suitable for the situation that bearing holder (housing, cover) is very thin, that is in prior art, a lot of limitation existed to the restorative procedure of reductor, poor universality.
Therefore, how to improve the versatility that reductor shaft bearing damages rear restorative procedure, become the technical problem that those skilled in the art are urgently to be resolved hurrily.
Summary of the invention
In view of this, the invention provides the restorative procedure after the damage of a kind of bearing block, to improve the versatility that reductor shaft bearing damages rear restorative procedure.
For achieving the above object, the invention provides following technical scheme:
A restorative procedure after bearing block damages, comprises step:
Step 1, measurement damage the aperture of rear bearing bore heavy wear place, and calculate the bearing saddle bore radius R of above-mentioned heavy wear place, the described bearing saddle bore radius before damage is r;
Step 2, carry out milling respectively to the end face of flask joint up and down of the described bearing block after damaging, the thickness of milling is a,
Step 3, the operation of expansions dead eye is carried out respectively to the upper and lower end face of described flask joint that step 2 processes, make the bearing saddle bore of described flask joint be extended to the aperture r damaging front described bearing block.
Preferably, in the restorative procedure after above-mentioned bearing block damages, the expansion bearing operation in described step 3 is boring operation.
Preferably, in the restorative procedure after above-mentioned bearing block damages, the expansion axis hole in described step 3 is operating as Milling Process.
Preferably, in the restorative procedure after above-mentioned bearing block damages, the milling thickness in described step 2
As can be seen from technique scheme, restorative procedure after bearing block provided by the invention damages, first the aperture of bearing saddle bore heavy wear place after damaging is measured, calculate the bearing saddle bore radius of above-mentioned heavy wear place, then carry out milling according to the bearing saddle bore radius after the damage obtained respectively to the upper and lower end face of bearing block flask joint, milling thickness is at least
the operation of expansion axis hole is carried out to the bearing saddle bore after milling, until the size of bearing saddle bore after expansion bearing operation reaches the aperture damaging front-end bearing pedestal, adopt milling in this programme and expand the mode that the mode that matches of dead eye replaces by cold welding, bushing or deposition in prior art, the method is not subject to the impact of bearing block thickness and structure, thus improves the versatility that reductor shaft bearing damages rear restorative procedure.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The cross-sectional view of the bearing saddle bore in the step 2 that Fig. 1 provides for the embodiment of the present invention after milling;
The cross-sectional view of the bearing saddle bore after ream operation is carried out in the step 3 that Fig. 2 provides for the embodiment of the present invention;
The flow chart of the restorative procedure after the bearing block that Fig. 3 provides for the embodiment of the present invention damages.
Detailed description of the invention
The invention discloses the restorative procedure after the damage of a kind of bearing block, to improve the versatility that reductor shaft bearing damages rear restorative procedure.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1-Fig. 3, Fig. 1 is the cross-sectional view of the bearing saddle bore in the step 2 that provides of the embodiment of the present invention after milling; The cross-sectional view of the bearing saddle bore after ream operation is carried out in the step 3 that Fig. 2 provides for the embodiment of the present invention; The flow chart of the restorative procedure after the bearing block that Fig. 3 provides for the embodiment of the present invention damages.
The invention discloses the restorative procedure after the damage of a kind of bearing block, comprise step:
Step 1, measurement damage the aperture of rear bearing bore heavy wear place, and calculate the bearing saddle bore radius R of above-mentioned heavy wear place, the described bearing saddle bore radius before damage is r;
Step 2, carry out milling respectively to the end face of flask joint up and down of the described bearing block after damaging, the thickness of milling is a,
Step 3, the operation of expansions dead eye is carried out respectively to the upper and lower end face of described flask joint that step 2 processes, make the bearing saddle bore of described flask joint be extended to the aperture r damaging front described bearing block.
The radius of bearing saddle bore heavy wear place after damaging in step 1 is of a size of R-r relative to the expansion of the bearing saddle bore radius before damage, in the process of milling, need the end face diameter of the flask joint up and down ensureing bearing block to be less than or equal to the end face diameter of the flask joint up and down damaging front-end bearing pedestal, otherwise effectively can not solve the problem that bearing rotates in dead eye, in the method, the horizontal milling thickness of the flask joint up and down of bearing block is at least
After completing bearing block milling in step 2, bearing saddle bore ovalize, after carrying out the operation of expansion axis hole to bearing saddle bore in step 3, bearing saddle bore recovers circular, and the size of this circle is equal with the size damaging fore bearing bore.
In method provided by the invention, adopt milling and expand the mode that the mode that matches of dead eye replaces by cold welding, bushing or deposition in prior art, namely milling portion of material is utilized to replace the mode of packing material, restorative procedure after this bearing block damages is not subject to the impact of speed reducer structure and thickness, thus improves the versatility that reductor shaft bearing damages rear restorative procedure.
Processed by the end face of milling to bearing block in restorative procedure after this programme bottom bracket damages, milling process cost is low, and precision is high.
The means of the expansion bearing adopted in the described step 3 of the restorative procedure after damaging bearing block in this programme can be boring operation, also can be Milling Process.Boring operation precision is high, can reduce the inside surface roughness of bearing saddle bore, can also correct preferably in step 2 due to axially bored line deflection that milling work causes.Milling Process not only precision is high, and efficiency is high.
In order to reduce the processing intensity to damaging rear bearing processing, in this programme step 2 to the milling thickness of the upper and lower end face of bearing block flask joint be
also can reduce the waste to material to a certain extent simultaneously.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
1. the restorative procedure after bearing block damage, is characterized in that, comprise step:
Step 1, measurement damage the aperture of rear bearing bore heavy wear place, and calculate the bearing saddle bore radius R of above-mentioned heavy wear place, the described bearing saddle bore radius before damage is r;
Step 2, carry out milling respectively to the end face of flask joint up and down of the described bearing block after damaging, the thickness of milling is a,
Step 3, the operation of expansions dead eye is carried out respectively to the upper and lower end face of described flask joint that step 2 processes, make the bearing saddle bore of described flask joint be extended to the aperture r damaging front described bearing block.
2. the restorative procedure after bearing block damage according to claim 1, it is characterized in that, the expansion bearing operation in described step 3 is boring operation.
3. the restorative procedure after bearing block damage according to claim 1, it is characterized in that, the expansion axis hole in described step 3 is operating as Milling Process.
4. the restorative procedure after bearing block damage according to claim 1, is characterized in that, the milling thickness in described step 2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510987684.3A CN105345389A (en) | 2015-12-24 | 2015-12-24 | Method for repairing damaged bearing block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510987684.3A CN105345389A (en) | 2015-12-24 | 2015-12-24 | Method for repairing damaged bearing block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105345389A true CN105345389A (en) | 2016-02-24 |
Family
ID=55321525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510987684.3A Pending CN105345389A (en) | 2015-12-24 | 2015-12-24 | Method for repairing damaged bearing block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105345389A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109014769A (en) * | 2018-08-09 | 2018-12-18 | 中车大连机车车辆有限公司 | Crankshaft hole concentricity restorative procedure |
| CN111571113A (en) * | 2020-05-28 | 2020-08-25 | 三一重机有限公司 | Bearing bush seat repairing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003240029A (en) * | 2001-12-13 | 2003-08-27 | Nsk Ltd | Bearing unit for wheel and its manufacturing method |
| JP2008173995A (en) * | 2007-01-16 | 2008-07-31 | Ntn Corp | Bearing device for wheel |
| CN101658997A (en) * | 2008-08-26 | 2010-03-03 | 兰州金牛轨道交通装备有限责任公司 | Method for repairing and processing bearing hole of main bearing cap of diesel engine body of diesel locomotive |
| EP1546586B1 (en) * | 2002-09-30 | 2014-05-14 | Garlock Sealing Technologies LLC | Unitizing element and method for assembling a seal |
| CN104801919A (en) * | 2015-05-05 | 2015-07-29 | 沈阳东卫机器制造有限公司 | Repairing method for bearing seat |
-
2015
- 2015-12-24 CN CN201510987684.3A patent/CN105345389A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003240029A (en) * | 2001-12-13 | 2003-08-27 | Nsk Ltd | Bearing unit for wheel and its manufacturing method |
| EP1546586B1 (en) * | 2002-09-30 | 2014-05-14 | Garlock Sealing Technologies LLC | Unitizing element and method for assembling a seal |
| JP2008173995A (en) * | 2007-01-16 | 2008-07-31 | Ntn Corp | Bearing device for wheel |
| CN101658997A (en) * | 2008-08-26 | 2010-03-03 | 兰州金牛轨道交通装备有限责任公司 | Method for repairing and processing bearing hole of main bearing cap of diesel engine body of diesel locomotive |
| CN104801919A (en) * | 2015-05-05 | 2015-07-29 | 沈阳东卫机器制造有限公司 | Repairing method for bearing seat |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109014769A (en) * | 2018-08-09 | 2018-12-18 | 中车大连机车车辆有限公司 | Crankshaft hole concentricity restorative procedure |
| CN109014769B (en) * | 2018-08-09 | 2021-01-26 | 中车大连机车车辆有限公司 | Method for repairing coaxiality of crankshaft hole |
| CN111571113A (en) * | 2020-05-28 | 2020-08-25 | 三一重机有限公司 | Bearing bush seat repairing method |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20160224 |