CN202455228U - Two-level draw bar disassembling device of motor bearing - Google Patents
Two-level draw bar disassembling device of motor bearing Download PDFInfo
- Publication number
- CN202455228U CN202455228U CN201220044871XU CN201220044871U CN202455228U CN 202455228 U CN202455228 U CN 202455228U CN 201220044871X U CN201220044871X U CN 201220044871XU CN 201220044871 U CN201220044871 U CN 201220044871U CN 202455228 U CN202455228 U CN 202455228U
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- China
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- bearing
- circumferential edge
- top board
- internal
- draw bar
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Abstract
The utility model discloses a two-level draw bar disassembling device of a motor bearing, and relates to the field of motors. Three to four disassembling internally threaded holes are arranged on the circumferential edge of a bearing inner cover (7), three to four through holes are disposed on the circumferential edge of a top plate (3), an internally threaded hole is arranged in the center of the top plate (3), two arc-shaped cushion blocks (6) are placed between an inner ring of the motor bearing (5) and the bearing inner cover (7), iron wires (9) are bound on the outsides of the arc-shaped cushion blocks (6), the top plate (3) is rotationally disposed on the head of a rotary shaft (8), a threaded ejector rod (1) is abutted to the head of the rotary shaft (8) after being meshed with internal threads in the top plate (3), one end of each threaded draw bar (4) is connected with a corresponding nut (2) after penetrating through the corresponding through hole on the circumferential edge of the top plate (3), the other end of each threaded draw bar (4) is detachably connected with the bearing inner cover (7) in a threaded manner. The two-level draw bar disassembling device of the motor bearing has the advantages that serviceability of the bearing and location precision of the bearing is improved, bearing disassembling time is shortened, cost is reduced, and the like.
Description
Technical field
The utility model relates to machine field, the relieving attachment of especially a kind of motor bearings two-stage pull bar.
Background technology
The existing above motor of 7.5kw all is to adopt traditional grease lubrication and protect oily mode with internal bearing cover and bearing end cover.When motor carries out maintenance and repair, all adopt traditional holder of drawing that bearing is forced dismounting.Its method is: put a centre bore protective sleeve at the rotating shaft spindle nose, with drawing the threaded mandrel of holder that the protective sleeve centre bore is withstood, 3 pawls that draw holder are colluded catch outer race, firmly the threaded mandrel of holder is drawn in rotation again, by force therefore bearing is all damaged; When particularly periodicmaintenance is changed bearing, there is split bearing when dismounting, can because of various reasons bearing be pulled down from rotating shaft.Stressed too quickly during dismounting owing to outer race; Have the outer shroud and the retainer of the bearing more than 95% to leave behind, bearing inner ring is stayed on the axle and can't be disassembled, and can only adopt abrasive wheel cutting machine to cut or go up lathe its processing is machined away; Every motor through above method dismounting; Not only bearing is scrapped, and its shaft bearing position precision also can receive certain damage, the hidden danger that causes rotating shaft to scrap in addition.
Summary of the invention
The purpose of the utility model provides a kind of simple in structure, adopts two-stage pull bar dismounting motor bearings device.
The technical scheme that purpose adopts of the utility model is, comprises threaded mandrel, nut, top board, thread, motor bearings, arc cushion block, internal bearing cover, rotating shaft, and its internal bearing cover circumferential edge has 3～4 dismounting internal thread holes; The top board circumferential edge has 3～4 through holes, centers that internal thread hole is arranged; Be placed with two arc cushion blocks between the interior ring of motor bearings and the internal bearing cover, the arc cushion block has the iron wire colligation outward; Be placed with top board on the rotating shaft spindle nose, withstand the rotating shaft spindle nose after threaded mandrel and the engagement of top board center internal thread, thread one end is connected with nut after passing top board circumferential edge through hole, the other end is connected with internal bearing cover dismounting internal thread.
The utility model, top board circumferential edge via count is identical with internal bearing cover dismounting internal thread hole count.
Use the utility model, two arc cushion blocks are positioned over motor bearings root place, withstand the interior ring of motor bearings; With the thing of copper wire or iron wire and rope and so on the colligation of arc cushion block is fixed again, passed from the top board via hole respectively with 3～4 jackscrew screw rods again, be threaded into root respectively with 3～4 screws of internal bearing cover; Again nut is screwed into from pull bar respectively,, threaded mandrel is screwed into from the central screw of top board withstands the shaft extension end face again until with top board and internal bearing cover tension; Rotary threaded push rod firmly; In the time of the rotary threaded push rod, the nut on the binding thread pull bar can take apart motor bearings at any time.Therefore this device, can guarantee that the retainer of bearing and steel ball dismounting back are without any damage because bearing inner ring is stressed evenly.
The utility model has the bearing and the serviceability rate of bearing position precision that improve behind the dismounting bearing, and the shortening bearing removal time, characteristics such as reduce the cost.
Description of drawings:
Further specify the utility model below in conjunction with accompanying drawing
Fig. 1 is the utility model structural representation
Among the figure: 1-threaded mandrel, 2-nut, 3-top board, 4-thread, 5-motor bearings, 6-arc cushion block, 7-internal bearing cover, 8-rotating shaft, 9-iron wire
Embodiment:
As shown in Figure 1: its internal bearing cover 7 circumferential edge have 3～4 dismounting internal thread holes, and top board 3 circumferential edge have 3～4 through holes, centers that internal thread hole is arranged; Be placed with two arc cushion blocks 6 between the interior ring of motor bearings 5 and the internal bearing cover 7, iron wire 9 colligations are arranged outside the arc cushion block 6; Be placed with top board 3 on rotating shaft 8 spindle noses, withstand rotating shaft 8 spindle noses after intracardiac spiral shell is put engagement in threaded mandrel 1 and the top board 3, thread 4-end is connected with nut 2 through behind the top board 3 circumferential edge through holes, the other end is connected with internal bearing cover 7 dismounting internal threads.Top board 3 circumferential edge via count are identical with internal bearing cover 7 dismounting internal thread hole counts.
Claims (2)
1. motor bearings two-stage pull bar relieving attachment; Comprise thread (1), nut (2), top board (3), thread (4), motor bearings (5), arc cushion block (6), internal bearing cover (7), rotating shaft (8), iron wire (9); It is characterized in that internal bearing cover (7) circumferential edge has 3～4 dismounting internal thread holes, top board (3) circumferential edge has 3～4 through holes, centers that internal thread hole is arranged; Be placed with two arc cushion blocks (6) between the interior ring of motor bearings (5) and the internal bearing cover (7), iron wire (9) colligation is arranged outside the arc cushion block (6); Be placed with top board (3) on rotating shaft (8) spindle nose; Threaded mandrel (1) withstands rotating shaft (8) spindle nose after meshing with top board (3) center internal thread, and thread (4) one ends are connected with nut (2) after passing top board (3) circumferential edge through hole, the other end is connected with internal bearing cover 7 dismounting internal threads.
2. a kind of motor bearings two-stage pull bar according to claim 1 relieving attachment is characterized in that top board (3) circumferential edge via count is identical with internal bearing cover (7) dismounting internal thread hole count.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220044871XU CN202455228U (en) | 2012-02-13 | 2012-02-13 | Two-level draw bar disassembling device of motor bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220044871XU CN202455228U (en) | 2012-02-13 | 2012-02-13 | Two-level draw bar disassembling device of motor bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202455228U true CN202455228U (en) | 2012-09-26 |
Family
ID=46871055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220044871XU Expired - Fee Related CN202455228U (en) | 2012-02-13 | 2012-02-13 | Two-level draw bar disassembling device of motor bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202455228U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124843A (en) * | 2014-07-29 | 2014-10-29 | 江苏永钢集团有限公司 | Motor end cap detaching device |
| CN104135118A (en) * | 2014-07-29 | 2014-11-05 | 江苏永钢集团有限公司 | Disassembly device of heat dissipation blade on electric motor |
| CN104638854A (en) * | 2014-12-20 | 2015-05-20 | 重庆德马高速设备研究所 | Bearing detaching ring for variable-frequency high-speed motor |
| CN107404200A (en) * | 2017-09-19 | 2017-11-28 | 长电科技（滁州）有限公司 | A kind of motor provision for disengagement and method for dismounting |
-
2012
- 2012-02-13 CN CN201220044871XU patent/CN202455228U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124843A (en) * | 2014-07-29 | 2014-10-29 | 江苏永钢集团有限公司 | Motor end cap detaching device |
| CN104135118A (en) * | 2014-07-29 | 2014-11-05 | 江苏永钢集团有限公司 | Disassembly device of heat dissipation blade on electric motor |
| CN104124843B (en) * | 2014-07-29 | 2016-05-18 | 江苏永钢集团有限公司 | Electric motor end cap provision for disengagement |
| CN104135118B (en) * | 2014-07-29 | 2016-08-24 | 江苏永钢集团有限公司 | The provision for disengagement of cooling wind blade on motor |
| CN104638854A (en) * | 2014-12-20 | 2015-05-20 | 重庆德马高速设备研究所 | Bearing detaching ring for variable-frequency high-speed motor |
| CN107404200A (en) * | 2017-09-19 | 2017-11-28 | 长电科技（滁州）有限公司 | A kind of motor provision for disengagement and method for dismounting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20131016 Granted publication date: 20120926 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20140416 Granted publication date: 20120926 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20150213 |
|
| EXPY | Termination of patent right or utility model |