CN202805103U - Bearing inner ring pulling-dismantling auxiliary device and bearing pulling-dismantling device provided with the same - Google Patents

Bearing inner ring pulling-dismantling auxiliary device and bearing pulling-dismantling device provided with the same Download PDF

Info

Publication number
CN202805103U
CN202805103U CN 201220422048 CN201220422048U CN202805103U CN 202805103 U CN202805103 U CN 202805103U CN 201220422048 CN201220422048 CN 201220422048 CN 201220422048 U CN201220422048 U CN 201220422048U CN 202805103 U CN202805103 U CN 202805103U
Authority
CN
China
Prior art keywords
bearing
ring
race
dismantling
pulling
Prior art date
Application number
CN 201220422048
Other languages
Chinese (zh)
Inventor
王群
杨兵华
王重庆
满维伟
樊红刚
朱建新
Original Assignee
中国航空动力机械研究所
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 中国航空动力机械研究所 filed Critical 中国航空动力机械研究所
Priority to CN 201220422048 priority Critical patent/CN202805103U/en
Application granted granted Critical
Publication of CN202805103U publication Critical patent/CN202805103U/en

Links

Abstract

The utility model provides a bearing inner ring pulling-dismantling auxiliary device and a bearing pulling-dismantling device provided with the same. The bearing inner ring pulling-dismantling auxiliary device comprises an inner ring. The diameter of the inner ring is larger than the inner diameter of a bearing. The inner ring comprises two semicircle rings which are spliced into a ring shape. The center sides of the two semicircle rings are provided with ring-shaped bosses which are connected with the inner ring of the bearing in an abutting mode. The bearing pulling-dismantling device comprises a Lama and the bearing inner ring pulling-dismantling auxiliary device. According to the bearing inner ring pulling-dismantling auxiliary device and the bearing pulling-dismantling device provided with the same, when the bearing is dismantled, by means of abutting connection between a ring-shaped flange on the inner ring and the inner ring of the bearing, a dismantling force of the Lama to the bearing is transferred from an outer ring of the bearing to the inner ring of the bearing, and damage to a bearing runway and balls is not caused when the Lama is used for dismantling the bearing. As the bearing inner ring pulling-dismantling auxiliary device is arranged, the bearing is convenient to dismantle, and the damage to the bearing is not caused.

Description

Bearing inner race pulls out the bearing that unloads servicing unit and have it and pulls out handler
Technical field
The utility model relates to bearing demounting tool field, pulls out the bearing that unloads servicing unit and have it in particular to a kind of bearing inner race and pulls out handler.
Background technology
The aviation rolling bearing is one of core component of aviation turboshaft engine, and the compressor of aviation turboshaft engine, turbine and power output transmission all need bearings and rotation.After test experiments is finished, bearing need to be disassembled from axle, check and analyze, thereby need to dismantle exactly bearing, prevent from the bearing injury is affected analysis and the judge of result of the test.Simultaneously, because the Aero-engine Bearing cost is high, little in batches, in the Aero-engine Bearing process of the test, in order to take full advantage of a limited number of bearing test spares, carry out some pilot projects more as much as possible, obtain more result of the test, need intactly bearing is pulled down from power transmission shaft.Bearing inner race and power transmission shaft are generally interference fit, bearing is pulled down the certain removal force of need from power transmission shaft, simultaneously, have higher critical speed in order to guarantee rotor, generally can shorten the rotor supports spacing as far as possible, cause the distance between bearing and the adjacent parts very little.
Existing bearing method for dismounting commonly used mainly contains two kinds, and a kind of is to utilize bearing puller directly bearing to be pulled down from axle; Another kind is to open 2~3 breach at the shaft shoulder in advance, directly knocks bearing inner race with copper rod when tearing bearing open.
As described in Figure 1, utilize bearing puller 10 directly bearing 20 to be pulled down from axle 30, shortcoming is to draw the impetus of horse at bearing outer ring 22, bearing outer ring 21 power transmissions are arrived bearing inner race 22 again to ball, aircraft bearing is high-accuracy bearing, when the bearing element contact surface bears larger removal force, easily cause bearing runway and ball to damage, be not suitable for the bearing removal in the Aero-engine Bearing test;
Open 2~3 breach at the shaft shoulder in advance, directly knock bearing inner race with copper rod when tearing bearing open, shortcoming is inefficiency, and bearing inner race discontinuity when knocking, easily cause the distortion of thin-walled lasso, for the turboshaft engine small size bearing, knock and be subject to the human factor impact, careless slightly, easily injure retainer by a crashing object.
The utility model content
The utility model aims to provide a kind of easy to operate bearing inner race and pulls out the bearing that unloads servicing unit and have it and pull out handler.
The utility model provides on the one hand a kind of bearing inner race to pull out and has unloaded servicing unit, comprise interior ring, the diameter of interior ring is greater than the internal diameter of bearing, and interior ring comprises and be spliced into two circular semicircular ring that the center of circle side of two semicircular ring has the annular boss with the bearing inner race butt.
Further, bearing inner race pulls out and unloads servicing unit and also comprise outer collar, and outer collar becomes sleeve-shaped, and an end has the flange that cooperates with interior ring; Outer collar cooperates with interior czermak space, and the internal diameter of outer collar at the flange place be D3, and the external diameter of bearing is D2, and the external diameter of interior ring is D1, wherein, and D1>D2, D3>D2, D1>D3.
Further, 6mm≤D1-D2≤10mm.
Of the present utility modelly also provide on the other hand a kind of bearing to pull out handler, comprised and draw horse, comprised also that aforesaid bearing inner race pulls out to unload servicing unit.
Pull out the bearing that unloads servicing unit and have it according to bearing inner race of the present utility model and pull out handler, when the dismounting bearing, by the annular lip on the interior ring and bearing inner race butt, draw horse that the power of disassembling of bearing is transferred to the inner ring of bearing by bearing outer ring thereby make, can not cause bearing runway and ball to damage thereby make to utilize when drawing horse dismounting bearing.The utility model pulls out and unloads servicing unit and make the dismounting bearing more convenient by bearing inner race is set, and can be to the bearing injury.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is that the prior art middle (center) bearing pulls out and unloads structural representation;
Fig. 2 a is the structural representation of the first bearing in the prior art;
Fig. 2 b is the structural representation of the second bearing in the prior art;
Fig. 3 a pulls out according to bearing inner race of the present utility model to unload servicing unit master TV structure schematic diagram;
Fig. 3 b pulls out according to bearing inner race of the present utility model to unload servicing unit sectional structure schematic diagram;
Fig. 4 pulls out according to bearing inner race of the present utility model to unload servicing unit dimensional structure schematic diagram; And
Fig. 5 pulls out the handler structural representation according to bearing of the present utility model.
The specific embodiment
Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
As shown in Figure 1, pull out according to a kind of bearing inner race of the present utility model and to unload servicing unit, comprise interior ring 41, the diameter of interior ring 41 is greater than the internal diameter of bearing 20, interior ring 41 comprises and is spliced into two circular semicircular ring that the center of circle side of two semicircular ring has the annular boss 41a with the bearing inner race butt.When the dismounting bearing, by the annular lip 41a on the interior ring 41 and bearing inner race 21 butts, draw the power of disassembling of 10 pairs of bearings of horse to be transferred on the bearing inner race 21 by bearing outer ring 22 thereby make, can not cause bearing runway and ball to damage thereby make to utilize when drawing horse 10 dismounting bearing 20.The utility model pulls out and unloads servicing unit and make the dismounting bearing more convenient by bearing inner race is set, and can be to the bearing injury.
Preferably, bearing inner race pulls out and unloads servicing unit and also comprise outer collar 42,42 one-tenth sleeve-shapeds of outer collar, and an end has the flange 42a that cooperates with interior ring 41; Outer collar 42 and interior ring 41 matched in clearance, and the internal diameter of outer collar 42 at flange 42a place be D3, and the external diameter of bearing 20 is D2, and the external diameter of interior ring 41 is D1, wherein, D1>D2, D3>D2, D1>D3.During the dismounting bearing, be inserted in first outer collar 42, the interior ring 41 of two semicircular ring put between bearing and the outer collar 42, two semicircular ring of aliging, rollback outer collar 42 is connected on the inner ring of bearing thereby make two semicircular ring form interior ring 41, again with drawing horse 10 that bearing is removed.By ring 41 and the fit clearance of outer collar 42 in the accurate control, bearing inner race pulls out and unloads servicing unit and can do very shortly, to solve the little difficult problem of structure space.Bearing inner race of the present utility model pulls out that to unload assistant apparatus structure simple, easy to use, and difficulty of processing is little.
Bearing inner race of the present utility model pulls out and unloads the steel material that the servicing unit employing has some strength, for dissimilar bearings, can internally encircle the height t different designs of the annular boss of 41 center of circle sides, shown in Fig. 2 a, for bearing inner race 21 and outer ring 22 concordant this bearing on end face, the height of annular boss is generally got 0.5~1mm.Shown in Fig. 2 b, for bearing inner race and outer ring not concordant this bearing on end face, need to make also will be more than 0.5~1mm after the residual quantity of height between polishing bearing inner race and outer ring of annular boss, if namely the end face of bearing inner race is t1 to the end face distance vertically of bearing outer ring, then the height of annular boss is t1+(0.5~1) mm.Thereby when guaranteeing annular boss and bearing inner race end contact, leave the gap of 0.5~1mm between the end face of interior ring 41 and the end face of bearing outer ring, guarantee to draw horse that the removal force of bearing is acted on the bearing inner race fully.
During design, the internal diameter of interior ring 41, prevents from rubbing between interior ring 41 and the axle even keep certain gap between interior ring 41 and the axle than the large 0.1~0.5mm of diameter of the shaft shoulder at bearing place, even the surface of scratch axle.The external diameter of interior ring 41 should be than the external diameter of bearing large 6~10mm.Outer collar 42 is the circular sleeve of end band annular flange, adopt the matched in clearance of H7/f5 between the external diameter of the internal diameter of circular sleeve and interior ring 41, the internal diameter at annular lip place should be than the internal diameter of circular sleeve little 3~10mm, can suitably choose according to the size of bearing, but must guarantee that the internal diameter at annular lip place greater than the external diameter of bearing outer ring, just can make bearing pass from outer collar 42.
The utility model also provides a kind of bearing to pull out handler, and what comprise the dismounting plain bearing draws horse 10, and aforesaid bearing inner race pulls out and unloads servicing unit.During the dismounting bearing, at first be inserted in bearing inner race and pull out the outer collar 42 of unloading servicing unit, again 2 semicircular ring are put between bearing and the outer collar 42, two semicircular ring of aliging, rollback outer collar 42 makes on its interior ring 41 that is enclosed within two semicircular ring compositions, uses at last and draws horse that bearing is removed.
As can be seen from the above description, the utility model the above embodiments have realized following technique effect:
Pull out the bearing that unloads servicing unit and have it according to bearing inner race of the present utility model and pull out handler, when the dismounting bearing, by the annular lip on the interior ring and bearing inner race butt, draw horse that the power of disassembling of bearing is transferred to the inner ring of bearing by bearing outer ring thereby make, can not cause bearing runway and ball to damage thereby make to utilize when drawing horse dismounting bearing.The utility model pulls out and unloads servicing unit and make the dismounting bearing more convenient by bearing inner race is set, and can be to the bearing injury.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims (4)

1. a bearing inner race pulls out and unloads servicing unit, it is characterized in that, comprise interior ring (41), the diameter of described interior ring (41) is greater than the internal diameter of bearing (20), described interior ring (41) comprises and is spliced into two circular semicircular ring that the center of circle side of described two semicircular ring has the annular boss (41a) with bearing inner race (21) butt.
2. bearing inner race according to claim 1 pulls out and unloads servicing unit, it is characterized in that,
Described bearing inner race pulls out and unloads servicing unit and also comprise outer collar (42), and described outer collar (42) becomes sleeve-shaped, and an end has the flange (42a) that cooperates with described interior ring (41);
Described outer collar (42) and described interior ring (41) matched in clearance, and the internal diameter that described outer collar (42) is located at described flange (42a) is D3, the external diameter of described bearing (20) is D2, the external diameter of described interior ring (41) is D1, wherein, and D1>D2, D3>D2, D1>D3.
3. bearing inner race according to claim 3 pulls out and unloads servicing unit, it is characterized in that 6mm≤D1-D2≤1mm.
4. a bearing pulls out handler, comprises drawing horse (10), it is characterized in that, comprises also that each described bearing inner race pulls out in the claims 1 to 3 to unload servicing unit (40).
CN 201220422048 2012-08-23 2012-08-23 Bearing inner ring pulling-dismantling auxiliary device and bearing pulling-dismantling device provided with the same CN202805103U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220422048 CN202805103U (en) 2012-08-23 2012-08-23 Bearing inner ring pulling-dismantling auxiliary device and bearing pulling-dismantling device provided with the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220422048 CN202805103U (en) 2012-08-23 2012-08-23 Bearing inner ring pulling-dismantling auxiliary device and bearing pulling-dismantling device provided with the same

Publications (1)

Publication Number Publication Date
CN202805103U true CN202805103U (en) 2013-03-20

Family

ID=47864046

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220422048 CN202805103U (en) 2012-08-23 2012-08-23 Bearing inner ring pulling-dismantling auxiliary device and bearing pulling-dismantling device provided with the same

Country Status (1)

Country Link
CN (1) CN202805103U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103737548A (en) * 2014-01-14 2014-04-23 安徽江淮汽车股份有限公司 Press-fitting device for annular parts
CN104907998A (en) * 2015-06-12 2015-09-16 安徽华茂纺织股份有限公司 Adjustable nondestructive bearing disassembling device
CN106671023A (en) * 2016-12-27 2017-05-17 中国南方航空工业(集团)有限公司 Bearing detachment device
CN110000737A (en) * 2019-05-20 2019-07-12 包头中车电机有限公司 A kind of bearing rapid free wound dismounting tooling
CN110380558A (en) * 2019-08-26 2019-10-25 河南师范大学 A kind of Rotor Assembly and its assembly and disassembly methods

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103737548A (en) * 2014-01-14 2014-04-23 安徽江淮汽车股份有限公司 Press-fitting device for annular parts
CN103737548B (en) * 2014-01-14 2015-05-27 安徽江淮汽车股份有限公司 Press-fitting device for annular parts
CN104907998A (en) * 2015-06-12 2015-09-16 安徽华茂纺织股份有限公司 Adjustable nondestructive bearing disassembling device
CN106671023A (en) * 2016-12-27 2017-05-17 中国南方航空工业(集团)有限公司 Bearing detachment device
CN106671023B (en) * 2016-12-27 2019-09-20 中国航发南方工业有限公司 Bearing disassembling device
CN110000737A (en) * 2019-05-20 2019-07-12 包头中车电机有限公司 A kind of bearing rapid free wound dismounting tooling
CN110380558A (en) * 2019-08-26 2019-10-25 河南师范大学 A kind of Rotor Assembly and its assembly and disassembly methods
CN110380558B (en) * 2019-08-26 2021-01-01 河南师范大学 Motor rotor assembly and dismounting method thereof

Similar Documents

Publication Publication Date Title
EP2613033A3 (en) Magnetically coupled contra-rotating propulsion stages
CN204953942U (en) Fixture device and processing equipment
RU2010144516A (en) Synchronous ring assembly for axial compressor housing
CN107240981B (en) Detachable magnetic suspension energy storage flywheel rotor
CN106363408B (en) assembly process method of aeroengine bearing
EP2413480A3 (en) Apparatus for a high speed sleeveless rotor
CN101900640B (en) Fault simulation combined test table of machine drive system
CN204906030U (en) High -speed permanent -magnet machine rotor of compound protection of multilayer
EP2639159A3 (en) Engine mounting system for an aircraft
CN105226872B (en) The manufacture method of rotor axis of electric, motor and rotor axis of electric
CN102022965B (en) Device for measuring axial internal clearance of matched angular contact ball bearing
KR20140041416A (en) Method and device for changing a front seal plate in an aircraft engine
CN202539614U (en) Double-taper sleeve split adjustable turning and grinding mandrel device
CN203909376U (en) Space optical lens
CN202126239U (en) Inspection tool for axiality
CN105319072A (en) Multi-type compatible high-precision ground static testing stand for rocket engine
CN205245963U (en) Engine cylinder cage circle, pipe hole are synthesized and are examined utensil
WO2014007902A3 (en) Tie shaft arrangement for turbomachine
CN201373727Y (en) Three-pin shaft fork external star-wheel coaxiality measuring check tool
CN203863613U (en) Tight-holding drawing-type bearing neck bush disassembly tool
CN202301350U (en) Locating pin
CN205689631U (en) Rubbercushioned sleeve bearing coupling
CN203566632U (en) Bearing disassembling tool
WO2013160165A3 (en) Method and arrangement of measuring a mechanical bearing oscillation
CN105449920B (en) A kind of magneto shaft and its installation method

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model