CN202399216U - Demounting device for large-sized hub bearings of traction motor - Google Patents
Demounting device for large-sized hub bearings of traction motor Download PDFInfo
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- CN202399216U CN202399216U CN2011205344040U CN201120534404U CN202399216U CN 202399216 U CN202399216 U CN 202399216U CN 2011205344040 U CN2011205344040 U CN 2011205344040U CN 201120534404 U CN201120534404 U CN 201120534404U CN 202399216 U CN202399216 U CN 202399216U
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- screw rod
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- stress
- drawbench
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- 230000001360 synchronised effect Effects 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of large-sized bearing demounting in mechanical maintenance, and particularly relates to a demounting device for large-sized hub bearings of a traction motor, which consists of a group of drawing devices and a group of stress wrenches, wherein the drawing devices and the stress wrenches are circumferentially uniformly distributed on a hub. Each drawing device comprises a screw rod, a fixing sleeve, a pressure plate, a lifting hook, a stress nut and a fastening nut, wherein the screw rod is in threaded connection with the end face of the hub, the fixing sleeve and the pressure plate are sequentially sleeved on the screw rod, the lifting hook is connected with the pressure plate in an inserted manner, the stress nut is in threaded connection with the upper portion of the lifting hook, and the fastening nut is in threaded connection with the upper portion of the screw rod. Each lifting hook is a combination with an upper external threaded hook rod and a lower horizontal hook, and the horizontal hook is connectedly rested to the lower end face of the outer periphery of the large-sized bearing, and the stress wrenches are connected with the stress nuts in an inserting manner. When the demounting device is used for overhauling, axial force can be uniformly applied to the outer periphery of the bearing, so that the outer periphery of the demounted bearing can be intact and not deformed, labor and time are saved, and labor efficiency is improved.
Description
Technical field
The utility model belongs to the medium-and-large-sized bearing removal technical field of machinery overhaul class, relates in particular to the provision for disengagement of a kind of traction electric machine wheel hub large size bearing.
Background technology
Large-scale mine automobile R190 carload lot up to: 200 tons, at present domestic only have the R190 automobile to be no more than 50.The hub bearing diameter of the GE788 traction electric machine that this automobile uses is ∮ 1060, and the overhaul of GE788 traction electric machine is when changing hub bearing, because wheel hub and bearing outer ring are heating interference assemblings; The bearing extractor of special use useless; Can only bearing outer ring be cut off with gas welding, like this, cause distortion of hub spindle bearing or damage easily; Changing hub bearing for the overhaul of GE788 traction electric machine makes troubles, and directly influences the overhaul quality of GE788 traction electric machine.
Summary of the invention
The purpose of the utility model be to provide a kind of simple in structure, volume is little, in light weight, traction electric machine wheel hub large size bearing provision for disengagement that installing/dismounting easily, does not receive the bearing outer ring size impact and saves manpower.
The purpose of the utility model realizes through following technical proposals:
The traction electric machine wheel hub large size bearing provision for disengagement of the utility model; It is characterized in that by circumferencial direction be evenly distributed on the wheel hub one group of drawbench with respectively therewith one group of application of force spanner being connected of one group of drawbench form; Described drawbench is by the screw rod that is threaded with described wheel hub end face; Be enclosed within fixed cover and pressing plate on this screw rod successively; Pressing plate plugs therewith lifts hook, lifts application of force nut that hook top is threaded and the clamp nut that is threaded with said screw rod top therewith and forms, and the described hook that lifts is that top is provided with the assembly that externally threaded shank and lower end are provided with horizontal hook; Said horizontal hook is abutted against with the lower surface of large size bearing outer ring mutually, and described application of force spanner and described application of force nut plug.
Described one group of drawbench is made up of 4 drawbench, and described one group of application of force spanner is made up of two electronic pair of synchronous spanners of pawl.
The advantage of the utility model:
1) the utility model can guarantee uniformly bearing outer ring to be applied axial force when overhaul, makes the bearing outer ring that disassembles intact, indeformable, and saves manpower and time, and raises labour efficiency;
2) the utility model is simple in structure, volume is little, in light weight, install easily, simple to operate, and improve repair quality.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the vertical view of the utility model Fig. 1.
The specific embodiment
The specific embodiment below in conjunction with description of drawings the utility model.
Like Fig. 1, shown in 2: the traction electric machine wheel hub large size bearing provision for disengagement of the utility model; It is characterized in that by circumferencial direction be evenly distributed on the wheel hub one group of drawbench with respectively therewith 9 of one group of application of force spanners being connected of one group of drawbench form; Described drawbench is by the screw rod 3 that is connected with described wheel hub 1 end-face helical; Be enclosed within fixed cover 4 and pressing plate 5 on this screw rod 3 successively; Pressing plate 5 plugs therewith lifts hook 8, lifts the application of force nut 7 that hook 8 tops are threaded and 6 compositions of clamp nut that are threaded with said screw rod 3 tops therewith, describedly lifts hook 8 externally threaded shank and lower end are provided with the assembly of horizontal hook for top is provided with; Said horizontal hook is abutted against with the lower surface of large size bearing outer ring 2 mutually, and described application of force spanner 9 plugs with described application of force nut 7.Operation sequence is: screw rod is connected with screwed hole on the wheel hub; Fixed cover and pressing plate are enclosed within on this screw rod successively; Lift hook catch on the bottom face of bearing outer ring after, the upper end passes pressing plate; Through clamp nut screw rod, fixed cover and pressing plate are fixed, to the application of force nut application of force simultaneously, made to lift hook and move on slowly, drive bearing outer ring and slowly break away from wheel hub with application of force spanner.
Described one group of drawbench is made up of 4 drawbench, and described one group of application of force spanner is made up of two electronic pair of synchronous spanners of pawl, and the described electronic pair of synchronous spanner of pawl plugs with application of force nut outer surface respectively.The synchronous spanner of two pawls can interlock to the cycling of two pairs of application of force nuts.
Claims (2)
1. traction electric machine wheel hub large size bearing provision for disengagement; It is characterized in that by circumferencial direction be evenly distributed on the wheel hub one group of drawbench with respectively therewith one group of application of force spanner being connected of one group of drawbench form; Described drawbench is by the screw rod that is threaded with described wheel hub end face; Be enclosed within fixed cover and pressing plate on this screw rod successively; Pressing plate plugs therewith lifts hook, lifts application of force nut that hook top is threaded and the clamp nut that is threaded with said screw rod top therewith and forms, and the described hook that lifts is that top is provided with the assembly that externally threaded shank and lower end are provided with horizontal hook; Said horizontal hook is abutted against with the lower surface of large size bearing outer ring mutually, and described application of force spanner and described application of force nut plug.
2. traction electric machine wheel hub large size bearing according to claim 1 provision for disengagement is characterized in that described one group of drawbench is made up of 4 drawbench, and described one group of application of force spanner is made up of two electronic pair of synchronous spanners of pawl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205344040U CN202399216U (en) | 2011-12-20 | 2011-12-20 | Demounting device for large-sized hub bearings of traction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205344040U CN202399216U (en) | 2011-12-20 | 2011-12-20 | Demounting device for large-sized hub bearings of traction motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202399216U true CN202399216U (en) | 2012-08-29 |
Family
ID=46696891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205344040U Expired - Lifetime CN202399216U (en) | 2011-12-20 | 2011-12-20 | Demounting device for large-sized hub bearings of traction motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202399216U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108080925A (en) * | 2017-12-26 | 2018-05-29 | 中国航发四川燃气涡轮研究院 | Roller bearing outer ring decomposer and method in a kind of annular chamber |
-
2011
- 2011-12-20 CN CN2011205344040U patent/CN202399216U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108080925A (en) * | 2017-12-26 | 2018-05-29 | 中国航发四川燃气涡轮研究院 | Roller bearing outer ring decomposer and method in a kind of annular chamber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 114000 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong Patentee after: Anshan Iron and Steel Group Mining Co., Ltd. Address before: No. 219, No. 39, Tiedong District, Liaoning, Anshan Patentee before: Angang Group Mine Company |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120829 |
|
| CX01 | Expiry of patent term |