CN202985047U - Motor bearing exit device - Google Patents
Motor bearing exit device Download PDFInfo
- Publication number
- CN202985047U CN202985047U CN 201220745406 CN201220745406U CN202985047U CN 202985047 U CN202985047 U CN 202985047U CN 201220745406 CN201220745406 CN 201220745406 CN 201220745406 U CN201220745406 U CN 201220745406U CN 202985047 U CN202985047 U CN 202985047U
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- CN
- China
- Prior art keywords
- lock ring
- pressing plate
- bearing
- locking ring
- screw rod
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a motor bearing exit device, which comprises a pull rod, a screw rod, a pressing plate, a first locking ring and a second locking ring, wherein the pressing plate is a round plate, the pull rod is designed into a straight rod with a hooked straight rod on the head end, a hooked part of the straight rod is placed on a bearing inner ring, the tail end of the straight rod is uniformly distributed on the edge of the pressing plate, the first locking ring and the second locking ring are concentric rings, the middle position of the pull rod is arranged in a gap which consists of the first locking ring and the second locking ring, and the screw rod is arranged by passing through the pressing plate and the circle centers of the first locking ring and the second locking ring, and is used as a power drive shaft of a whole bearing device.
Description
Technical field
The utility model relates to the internal structure of motor, specifically relates to a kind of bearing extractor for the motor bearings unloading process.
Background technology
Make the field at electric locomotive traction motor, directly affect the service life of motor the service life of bearing, and it is a lot of to affect the factor in service life of bearing, have directly, as the manufacturing process of bearing, material etc., also have indirectly, as the maintenance of bearing, the lubricating status of bearing etc.Electric locomotive traction motor needs regular overhauling, and the motor-driven end bearing need withdraw from and check cleaning.JD160A traction electric machine D end bearing inner ring belongs to matched in clearance with coordinating of rotating shaft, bearing is not in the situation that need other device generally can withdraw from smoothly, but sometimes, motor is after having moved certain milimeter number, there is certain magnitude of interference between bearing inner race and rotating shaft, at this moment manually can't withdraw from bearing, must be by the bearing extractor of special use, because the gap between bearing and inner oil seal is less, brought certain difficulty for withdrawing from of bearing, moreover, bearing is the higher parts of required precision, in moving back the process of bearing, can not any damage be arranged or make it that deformation occur retainer.And YQ-1224 motor D end bearing and rotating shaft belong to interference fit, must be by frock, because the gap between bearing and inner oil seal is less, brought certain difficulty for withdrawing from of bearing, moreover, bearing is the higher parts of required precision, in moving back the process of bearing, can not any damage be arranged to retainer.
The utility model content
For existing motor D end bearing in withdrawing from process operating difficulties, hold yielding technical problem, the utility model provides a kind of motor bearings extractor, solves existing motor D end bearing and withdraws from hard problem.
the technical scheme that the utility model technical solution problem adopts is: a kind of motor bearings extractor, comprise pull bar, screw rod, pressing plate, the first lock ring and the second lock ring, described pressing plate is circular slab, described pull bar is designed to the straight-bar that head end is hook solid, its head end crotch partly is placed on bearing inner race, its tail end is evenly arranged in the edge of described pressing plate, the first lock ring and the second lock ring are donut, the middle part of described pull bar is arranged in the gap of described the first lock ring and the second lock ring formation, described screw rod passes described pressing plate, the circle centre position of the first lock ring and the second lock ring is installed, power transmission shaft as whole bearing arrangement.
Further, also comprise manual hollow hydraulic pump, described manual hollow hydraulic pump is arranged between described pressing plate and described the second lock ring, and described screw rod passes manual hollow hydraulic pump, is threaded with described hollow jack.
The utility model has the advantage of: (1) pull bar is designed to the straight-bar that head end is hook solid, can put in easily the narrow and small gap between bearing and oil sealing, and rod head do not damage bearing after catching on bearing inner race, can derive safely bearing; (2) be provided with many edges that are evenly arranged in described pressing plate with pull bar, make shaft strength even, be difficult for when withdrawing from being pulled scuffing, security performance is high.The utility model is simple and reasonable, and is with low cost, easy and simple to handle, is suitable for promoting the use of.
Description of drawings
Fig. 1 is the structural representation of bearing extractor described in the utility model;
In figure, 1-pull bar, 2-screw rod, 3-pressing plate, 4-the first lock ring, 5-the second lock ring, 6-bearing rod, 7-bearing inner race, the manual hollow hydraulic pump of 8-.
The specific embodiment
Further set forth the utility model below in conjunction with the drawings and specific embodiments.
as shown in Figure 1, a kind of motor bearings extractor, comprise pull bar 1, screw rod 2, pressing plate 3, the first lock ring 4 and the second lock ring 5, described pressing plate 3 is circular slab, described pull bar 1 is designed to the straight-bar that head end is hook solid, its head end crotch partly is placed on bearing inner race 7, its tail end is evenly arranged in the edge of described pressing plate 3, the first lock ring 4 and the second lock ring 5 are donut, the middle part of described pull bar 1 is arranged in the gap of described the first lock ring 4 and the second lock ring 5 formations, described screw rod 2 passes described pressing plate 3, the circle centre position of the first lock ring 4 and the second lock ring 5 is installed, power transmission shaft as whole bearing arrangement.
As further embodiment of the present utility model, also comprise hollow jack 8, described hollow jack 8 is arranged between described pressing plate 3 and described the second lock ring 5, and described screw rod 2 passes hollow jack 8, is threaded with described hollow jack 8.
During installation, pull bar 1 head of this device catches on bearing inner race 6, after each pull bar is placed, by the first lock ring 4, the second lock ring 5 and pressing plate 3, whole frock is fixed, hollow jack 8 is enclosed within pressing plate 3 and second to be loosened on the screw rod 3 that encloses between 5, and screw rod 3 one ends screw in the screwed hole at rotating shaft pressing plate center.This device provides pulling force by hollow jack 8, when hollow jack 8 expands (jack one end acts on the second lock ring 5, and the other end acts on pressing plate 3), pressing plate 3 drives pull bar 1 and moves, along with the movement of pull bar 1, bearing inner race 6 just slowly withdraws from from rotating shaft.
The utility model has the advantage of: (1) pull bar is designed to the straight-bar that head end is hook solid, can put in easily the narrow and small gap between bearing and oil sealing, and rod head do not damage bearing after catching on bearing inner race, can derive safely bearing; (2) be provided with many edges that are evenly arranged in described pressing plate with pull bar, make shaft strength even, be difficult for when withdrawing from being pulled scuffing, security performance is high.
Above embodiment is only preferred embodiment of the present utility model; those of ordinary skills do not break away from do under the enlightenment of the utility model essence and technology do not have novelty and creationary distortion and a retouching, all should be considered as within protection domain of the present utility model.
Claims (2)
1. motor bearings extractor, it is characterized in that, comprise pull bar, screw rod, pressing plate, the first lock ring and the second lock ring, described pressing plate is circular slab, described pull bar is designed to the straight-bar that head end is hook solid, its head end crotch partly is placed on bearing inner race, its tail end is evenly arranged in the edge of described pressing plate, the first lock ring and the second lock ring are donut, the middle part of described pull bar is arranged in the gap of described the first lock ring and the second lock ring formation, described screw rod passes described pressing plate, the circle centre position of the first lock ring and the second lock ring is installed, power transmission shaft as whole bearing arrangement.
2. a kind of motor bearings extractor according to claim 1, it is characterized in that, also comprise manual hollow hydraulic pump, described manual hollow hydraulic pump is arranged between described pressing plate and described the second lock ring, described screw rod passes manual hollow hydraulic pump, is threaded with described hollow jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220745406 CN202985047U (en) | 2012-12-31 | 2012-12-31 | Motor bearing exit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220745406 CN202985047U (en) | 2012-12-31 | 2012-12-31 | Motor bearing exit device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202985047U true CN202985047U (en) | 2013-06-12 |
Family
ID=48556268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220745406 Expired - Fee Related CN202985047U (en) | 2012-12-31 | 2012-12-31 | Motor bearing exit device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202985047U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105479139A (en) * | 2015-12-29 | 2016-04-13 | 南车眉山车辆有限公司 | Pressing device for axlebox-free rolling bearing |
| CN105817865A (en) * | 2016-03-22 | 2016-08-03 | 国家电网公司 | Disassembly and assembly device and method for pivot sleeve of water inlet valve of storage power station |
| CN107803784A (en) * | 2017-11-02 | 2018-03-16 | 中车株洲电机有限公司 | A kind of horizontal pressing bearing method and cylindrical bearing inner ring method for dismounting and device |
-
2012
- 2012-12-31 CN CN 201220745406 patent/CN202985047U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105479139A (en) * | 2015-12-29 | 2016-04-13 | 南车眉山车辆有限公司 | Pressing device for axlebox-free rolling bearing |
| CN105817865A (en) * | 2016-03-22 | 2016-08-03 | 国家电网公司 | Disassembly and assembly device and method for pivot sleeve of water inlet valve of storage power station |
| CN105817865B (en) * | 2016-03-22 | 2017-12-15 | 国家电网公司 | A kind of storage station's water intaking valve pivot axle sleeve attaching/detaching apparatus and assembly and disassembly methods |
| CN107803784A (en) * | 2017-11-02 | 2018-03-16 | 中车株洲电机有限公司 | A kind of horizontal pressing bearing method and cylindrical bearing inner ring method for dismounting and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20211231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |