CN108110975A - A kind of facing-up method of dynamo bearing and bearing shell ball-type contact surface - Google Patents
A kind of facing-up method of dynamo bearing and bearing shell ball-type contact surface Download PDFInfo
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- CN108110975A CN108110975A CN201711439202.6A CN201711439202A CN108110975A CN 108110975 A CN108110975 A CN 108110975A CN 201711439202 A CN201711439202 A CN 201711439202A CN 108110975 A CN108110975 A CN 108110975A
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- Prior art keywords
- bearing shell
- bearing
- contact surface
- facing
- shell
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/14—Casings; Enclosures; Supports
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention discloses a kind of facing-up methods of dynamo bearing and bearing shell ball-type contact surface, which is characterized in that first installation, handling bearing shell；Then two kinds of different developers of color are respectively used on bearing shell and bearing block, make the display effect after grinding relatively sharp, the first developer is applied in the Internal Spherical Surface of the bearing block of the latter half, second of developer is applied on the spherical outside surface of bearing shell；Grinding amplitude is determined again；Compare bearing shell, on bearing block two kinds of developers colour developing area, both judge whether facing-up qualified according to the Eligibility requirements of predefined.The present invention is to each link of facing-up process：The installation of bearing shell, the handling of bearing shell, the amplitude of grinding, the judgement of the method tinted and qualification have formulated corresponding standard, have improved the contact surface of bearing shell and bearing block, improve the leakproofness of bearing and operation stability, production efficiency.
Description
Technical field
The present invention relates to a kind of facing-up methods of dynamo bearing and bearing shell ball-type contact surface, belong to dynamo bearing sealing
Manufacturing technology field.
Background technology
Bearing shell is the main support for carrying rotor, and the quality of bearing shell and bearing block contact surface directly affects steam turbine generator
The vibrations of rotor and bearing shell fever.Traditional technique is to carry out facing-up, this traditional work after bearing shell completion, then with bearing block
There is very big uncontrollability in skill, and supported without national standard.The effect of multiple facing-up is all different, and various aspects restrict vapour
The manufacturing of turbine generator：1. low production efficiency：Each facing-up effect is different from lengthening the facing-up cycle；2. influence product
Quality：Every time all can be different from original facing-up effect after installation, contact surface is made to reduce the stability for influencing product；3. manually waste
Seriously：Since the method and effect of grinding are different, grinding every time is made all to generate the works phenomenon such as prolonged, and generates and repeatedly returns
Work and the duplication of labour.
The content of the invention
Problem to be solved by this invention：How the contact surface of bearing shell and bearing block is improved, to improve the leakproofness of bearing
And operation stability, raising production efficiency.
To solve the above-mentioned problems, the present invention provides the facing-up sides of a kind of dynamo bearing and bearing shell ball-type contact surface
Method, which is characterized in that comprise the following steps：
Step 1)：Bearing shell is installed：Bearing shell is first dismantled after machining, and clears up the split of bearing shell, after being put down with oilstone oil again
It is assembled；
Step 2)：Handling bearing shell：Use suspender belt handling bearing shell；It is equipped with joint hinge at the top of bearing shell, during handling, bearing shell is made to protect always
Hold plumbness；Need shifting shaft watt-hour, the joint hinge on side bolt is stirred；
Step 3)：It tints：Two kinds of different developers of color are respectively used on bearing shell and bearing block, are made aobvious after grinding
Show that effect is relatively sharp, the first developer is applied in the Internal Spherical Surface of the bearing block of the latter half, applied on the spherical outside surface of bearing shell
Second of developer；It is relatively sharp in order to make to show after grinding, it improves, uses on the basis of traditional single use red lead powder
The developer of two kinds of color clears is used for bearing shell and bearing block, makes the display effect after grinding relatively sharp.
Step 4)：Determine grinding amplitude：When bearing shell hangs in the bearing block of the latter half, the center of bearing bush center and bearing block
On the basis of being consistent；Check whether bearing shell is placed on the center of bearing block after putting well, when bearing shell is located at the center of bearing block, profit
Bearing shell is stirred with crane, remains that bearing shell is parallel with the axis of bearing block during stirring；Then bearing shell is sling；
Step 5)：Qualified judgement：Compare bearing shell, on bearing block two kinds of developers colour developing area, according to predefined
Eligibility requirements judge both facing-up it is whether qualified.
Preferably, during step 1) the bearing shell assembly, the order of being wrenched of the bolt on split is：The bolt of hydrogen side one end
First, the bolt two for the empty side arranged with bolt one in diagonal, the remaining bolt three in empty side and bolt three are in diagonal arrangement
The bolt four of hydrogen side.
It is highly preferred that the torque that the bolt is wrenched is 1385Nm.By test of many times, bearing shell split spiral shell is found
Bolt under the action of the torque on grinding after bearing shell contact surface do not influence, on it without influence after bolt disassembly.
Preferably, cucurbit cooperation handling need to be hung in the step 2) during handling bearing shell；Step 4) the intermediate bushing is hung in down
It during the bearing block of half part, is slowly transferred using cucurbit when bearing shell will encounter bearing block, when slinging bearing shell, uses cucurbit will
Bearing shell lifts by crane after drawing high.
Preferably, the first developer uses red lead powder in the step 3), and second of developer uses blue oil.
Preferably, the deviation at step 4) the intermediate bushing center and bearing block center is less than 2mm；Shifting shaft watt-hour, outside
The rotation amplitude of edge is 10~20mm.
Preferably, due to requirement of the bearing shell with contact surface after fermium, everyone understands different and generates discrimination in the step 5)
Justice, now defining Eligibility requirements is：The color development face that second of developer is mixed with two kinds of developers on the bearing block of the latter half
The sum of product should be greater than the 75% of the two contact surface, and the colour developing area of the first developer originally coated should be less than the two contact surface
25%, i.e. colour developing the sum of area that second of developer is mixed with two kinds of developers is the colour developing area of the first developer
More than three times, and the colour developing position distribution that second of developer is mixed with two kinds of developers is uniform.
The present invention is to each link of facing-up process：The installation of bearing shell, the handling of bearing shell, the amplitude of grinding, the method tinted
And corresponding standard has been formulated in qualified judgement, is improved the contact surface of bearing shell and bearing block, is improved the leakproofness of bearing
And operation stability, production efficiency.
Compared with prior art, the beneficial effects of the present invention are：
Display when the 1st, grinding bearing shell becomes apparent from；
2nd, contact surface is shown more accurate after bearing shell is ground；
3rd, specify criterion of acceptability, become apparent from standard；
4th, improve work efficiency, avoid the risk done over again again.
Description of the drawings
Fig. 1 is the structure diagram of bearing shell；
Fig. 2 is the sectional view in A-A faces in Fig. 1；
Fig. 3 is the structure diagram of the bearing block of the latter half；
Fig. 4 is the schematic diagram of bearing shell spherical outside surface；
Fig. 5 is the front view that bearing shell is placed on bearing block center；
Fig. 6 is the side view of Fig. 5.
Specific embodiment
To be clearer and more comprehensible the present invention, hereby with preferred embodiment, and attached drawing is coordinated to be described in detail below.
Embodiment
A kind of facing-up method of dynamo bearing and bearing shell ball-type contact surface：
Step 1：Bearing shell is installed：Bearing shell 1 is first dismantled after machining, and clears up the split S of bearing shell 1, after being put down with oilstone oil
Assembled again, assembly is completed as shown in Figure 1；As shown in Fig. 2, when bearing shell 1 is assembled, left side is empty side, and right side is hydrogen side, split S
On bolt be wrenched order be：The bolt 1 of upper right, the bolt 2 12 of lower-left, the bolt 3 13 of upper left, the bolt of bottom right
4 14；For four bolts using frock bolt, the torque that bolt is wrenched is 1385Nm.
Step 2：Handling bearing shell：Use suspender belt handling bearing shell 1；The top of bearing shell 1 is equipped with joint hinge 15, during handling, bearing shell 1 is made to begin
Plumbness is kept eventually；When need stir bearing shell 1, the joint hinge on side bolt is stirred；Cucurbit need to be hung during handling bearing shell 1
Coordinate handling；
Step 3：It tints：Two kinds of different developers of color are respectively used on bearing shell 1 and bearing block 2, after making grinding
Display effect is relatively sharp, red lead powder (as shown in Figure 3) is applied on the Internal Spherical Surface a of the bearing block 2 of the latter half, in bearing shell 1
Blue oil (as shown in Figure 4) is applied on spherical outside surface b；
Step 4：Determine grinding amplitude：When bearing shell 1 hangs in the bearing block 2 of the latter half, 1 center of bearing shell and bearing block 2
It on the basis of center is consistent, is slowly transferred using cucurbit when bearing shell 1 will encounter bearing block 2, such as Fig. 5,6 institutes after putting well
Show；Check whether be placed on the center of bearing block 2 by bearing shell 1 (the deviation d at 2 center of 1 center of bearing shell and bearing block is less than after putting well
2mm), if so, stirring bearing shell 1 (rotation amplitude of its outer rim is 10~20mm) using crane, axis is remained during stirring
Watt 1 parallel with the axis of bearing block 2；Then bearing shell is sling, when slinging bearing shell 1, is lifted by crane after bearing shell 1 is drawn high using cucurbit；
Step 5：Qualified judgement：Compare bearing shell 1, on bearing block 2 two kinds of developers colour developing area, according to predefined
Eligibility requirements judge both facing-up it is whether qualified.Eligibility requirements are：Second of developer and two on the bearing block 2 of the latter half
The sum of colour developing area of kind developer mixing should be greater than the 75% of the two contact surface, the colour developing of the first developer originally coated
Area should be less than the 25% of the two contact surface, and the colour developing position distribution that second of developer is mixed with two kinds of developers is uniform.
Claims (7)
1. a kind of facing-up method of dynamo bearing and bearing shell ball-type contact surface, which is characterized in that comprise the following steps：
Step 1)：Bearing shell is installed：Bearing shell (1) is first dismantled after machining, the split (S) of cleaning bearing shell (1), flat with oilstone oil
It is assembled again afterwards；
Step 2)：Handling bearing shell：Use suspender belt handling bearing shell (1)；It is equipped with joint hinge (15) at the top of bearing shell (1), during handling, makes bearing shell
(1) plumbness is remained；When need stir bearing shell (1), the joint hinge on side bolt is stirred；
Step 3)：It tints：Two kinds of different developers of color are respectively used on bearing shell (1) and bearing block (2), after making grinding
Display effect is relatively sharp, the first developer is applied in the Internal Spherical Surface (a) of the bearing block (2) of the latter half, in bearing shell (1)
Second of developer is applied on spherical outside surface (b)；
Step 4)：Determine grinding amplitude：When bearing shell (1) hangs in bearing block (2) of the latter half, bearing shell (1) center and bearing block
(2) on the basis of center is consistent；Check whether bearing shell (1) is placed on the center of bearing block (2) after putting well, when bearing shell (1) position
When the center of bearing block (2), bearing shell (1) is stirred using crane, bearing shell (1) and bearing block (2) are remained during stirring
Axis it is parallel；Then bearing shell is sling；
Step 5)：Qualified judgement：Compare the colour developing area of the upper two kinds of developers of bearing shell (1), bearing block (2), according to fixed in advance
The Eligibility requirements of justice judge whether the two facing-up is qualified.
2. the facing-up method of dynamo bearing as described in claim 1 and bearing shell ball-type contact surface, which is characterized in that the step
When rapid 1) bearing shell (1) is assembled, the order of being wrenched of the bolt on split (S) is：The bolt one (11) of hydrogen side one end and bolt one
(11) it is in diagonal in bolt two (12), the remaining bolt three (13) in empty side and the bolt three (13) of the empty side of diagonal arrangement
The bolt four (14) of the hydrogen side of arrangement.
3. the facing-up method of dynamo bearing as claimed in claim 2 and bearing shell ball-type contact surface, which is characterized in that the spiral shell
The torque that bolt is wrenched is 1385Nm.
4. the facing-up method of dynamo bearing as described in claim 1 and bearing shell ball-type contact surface, which is characterized in that the step
It is rapid 2) in handling bearing shell (1) when need to hang cucurbit cooperation handling；Step 4) the intermediate bushing (1) hangs in the bearing block of the latter half
(2) when, slowly transferred using cucurbit when bearing shell (1) will encounter bearing block (2), when slinging bearing shell (1), using cucurbit by axis
Watt (1) is lifted by crane after drawing high.
5. the facing-up method of dynamo bearing as described in claim 1 and bearing shell ball-type contact surface, which is characterized in that the step
It is rapid 3) in the first developer using red lead powder, second of developer uses blue oil.
6. the facing-up method of dynamo bearing as described in claim 1 and bearing shell ball-type contact surface, which is characterized in that the step
The deviation (d) at rapid 4) intermediate bushing (1) center and bearing block (2) center is less than 2mm；When stirring bearing shell (1), the rotation width of outer rim
It spends for 10~20mm.
7. the facing-up method of dynamo bearing as described in claim 1 and bearing shell ball-type contact surface, which is characterized in that the step
It is rapid 5) in Eligibility requirements be：The colour developing area that second of developer is mixed with two kinds of developers on the bearing block (2) of the latter half
The sum of both should be greater than the 75% of contact surface, the colour developing area of the first developer originally coated should be less than the two contact surface
25%, and the colour developing position distribution that second of developer is mixed with two kinds of developers is uniform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711439202.6A CN108110975B (en) | 2017-12-26 | 2017-12-26 | Method for matching and grinding spherical contact surface of bearing seat and bearing bush of generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711439202.6A CN108110975B (en) | 2017-12-26 | 2017-12-26 | Method for matching and grinding spherical contact surface of bearing seat and bearing bush of generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108110975A true CN108110975A (en) | 2018-06-01 |
| CN108110975B CN108110975B (en) | 2020-06-16 |
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ID=62211843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711439202.6A Active CN108110975B (en) | 2017-12-26 | 2017-12-26 | Method for matching and grinding spherical contact surface of bearing seat and bearing bush of generator |
Country Status (1)
| Country | Link |
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| CN (1) | CN108110975B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110289737A (en) * | 2019-08-13 | 2019-09-27 | 南京汽轮电机(集团)有限责任公司 | A kind of generator bearing shell protective device |
| CN112676769A (en) * | 2020-11-17 | 2021-04-20 | 中国航发西安动力控制科技有限公司 | Machining method of spherical matching pair based on product performance |
| CN113280732A (en) * | 2021-04-06 | 2021-08-20 | 广汽本田汽车有限公司 | Method for detecting grinding rate of die |
| CN114378648A (en) * | 2022-01-12 | 2022-04-22 | 广州小鹏汽车科技有限公司 | Die lapping method, die and covering piece |
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| CN103317297A (en) * | 2013-06-28 | 2013-09-25 | 南车戚墅堰机车有限公司 | Method of repairing crushed bush in spindle hole of diesel engine block |
| CN103769793A (en) * | 2012-10-23 | 2014-05-07 | 洛阳嘉维轴承制造有限公司 | Ball mill main bearing bush repair process |
| JP2017200317A (en) * | 2016-04-27 | 2017-11-02 | 京セラドキュメントソリューションズ株式会社 | Driving device and image formation device including the same |
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- 2017-12-26 CN CN201711439202.6A patent/CN108110975B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103769793A (en) * | 2012-10-23 | 2014-05-07 | 洛阳嘉维轴承制造有限公司 | Ball mill main bearing bush repair process |
| CN103317297A (en) * | 2013-06-28 | 2013-09-25 | 南车戚墅堰机车有限公司 | Method of repairing crushed bush in spindle hole of diesel engine block |
| JP2017200317A (en) * | 2016-04-27 | 2017-11-02 | 京セラドキュメントソリューションズ株式会社 | Driving device and image formation device including the same |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110289737A (en) * | 2019-08-13 | 2019-09-27 | 南京汽轮电机(集团)有限责任公司 | A kind of generator bearing shell protective device |
| CN110289737B (en) * | 2019-08-13 | 2024-04-19 | 南京汽轮电机集团电站设备技术服务有限公司 | Generator bearing bush protection device |
| CN112676769A (en) * | 2020-11-17 | 2021-04-20 | 中国航发西安动力控制科技有限公司 | Machining method of spherical matching pair based on product performance |
| CN113280732A (en) * | 2021-04-06 | 2021-08-20 | 广汽本田汽车有限公司 | Method for detecting grinding rate of die |
| CN114378648A (en) * | 2022-01-12 | 2022-04-22 | 广州小鹏汽车科技有限公司 | Die lapping method, die and covering piece |
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| Publication number | Publication date |
|---|---|
| CN108110975B (en) | 2020-06-16 |
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