CN206912641U - Main reducing gear rotor shaft lower pulling force bearing assembling device - Google Patents
Main reducing gear rotor shaft lower pulling force bearing assembling device Download PDFInfo
- Publication number
- CN206912641U CN206912641U CN201720680936.2U CN201720680936U CN206912641U CN 206912641 U CN206912641 U CN 206912641U CN 201720680936 U CN201720680936 U CN 201720680936U CN 206912641 U CN206912641 U CN 206912641U
- Authority
- CN
- China
- Prior art keywords
- rotor shaft
- gland
- bearing
- supporting disk
- baffle plate
- 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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- Mounting Of Bearings Or Others (AREA)
Abstract
It the utility model is related to a kind of main reducing gear rotor shaft lower pulling force bearing assembling device, including pull bar, baffle plate, gland, hydraulic actuator, supporting disk, nut, pad, centring sleeve, baffle plate, centring sleeve, gland, hydraulic actuator, supporting disk, nut are sequentially installed with pull bar, wherein baffle plate coordinates with seam of the centring sleeve respectively with rotor shaft both ends；Gland end face and bearing inner ring end contact, oil cylinder one end of hydraulic actuator and gland, the other end contact with supporting disk, and supporting disk is spacing by the nut installed in tie rod end, pad.The utility model realizes rotor shaft and lower pulling force bearing is assembled into defined position in the state of axial infinite place, avoid because bearing installation is not in place and taps the damage caused by bearing, it ensure that the security used, reduce it is unnecessary reprocess or change new product caused by cost allowance, shorten the production cycle.
Description
Technical field
A kind of bearing assembling device is the utility model is related to, especially a kind of main reducing gear rotor shaft lower pulling force bearing assembling
Device, realize that Helicopter Main Reducer rotor shaft assembles the precise and high efficiency dress of lower pulling force bearing in the state of axial infinite place
Match somebody with somebody.
Background technology
Bearing is widely used revolving member in machine driving, and Helicopter Main Reducer rotor shaft lower pulling force bearing is installed
Between the bearing insert in rotor shaft and casing.Be usually taken during assembling and fix one end of rotor shaft, the other end by
Lower pulling force bearing is assembled in rotor shaft by the mode to be exerted a force on bearing.Due to the rotor shaft axial direction infinite place knot of main reducing gear
Structure, toward when assembling lower pulling force bearing in rotor shaft, the axial direction of rotor shaft can vibration, the fixing device of rotor shaft fixing end
Rotor shaft is fixed on it is where very crucial, if the off size of fixed position suitable will cause bearing assembling not in place
Failure, influence the total technical index of helicopter, or even flight safety.Limited additionally, due to rotor shaft length, assemble lower pulling force
It during bearing, can not be placed on forcing press, bearing can only be assembled in rotor shaft by way of tapping bearing, this punching
Hitting power easily causes bearing to produce fatigue or damage fault, easily occurs the anomalies such as bearing wear, vibration be big during work, reprocesses
Or changing new product improves cost, the production cycle extends, and causes the unnecessary wasting of resources.
The content of the invention
The purpose of this utility model is to provide a kind of main reducing gear rotor shaft lower pulling force bearing assembling device, subtracted for master
Fast device rotor shaft ensures that lower pulling force bearing is assembled to defined position in the state of axial infinite place, it is ensured that it is safe to use, keep away
Exempt from part to reprocess or change, economize on resources, shorten the production cycle.
Technology solution scheme of the present utility model is that main reducing gear rotor shaft lower pulling force bearing assembling device includes pull bar, gear
Plate, gland, hydraulic actuator, supporting disk, nut, pad, centring sleeve, the length of pull bar is than more than rotor axial length 500mm, successively
Baffle plate, centring sleeve, gland, hydraulic actuator, supporting disk, nut are installed, wherein pull bar is fixed with baffle plate, and baffle plate is in disk
Shape, the seam for not assembling bearing end with rotor shaft coordinate；Centring sleeve is in the form of annular discs, matches somebody with somebody with the seam of rotor shaft assembling bearing end
Close；Gland is tubular construction, and internal diameter coordinates than rotor shaft crest clearance, and external diameter is less than retainer, end face and bearing inner ring
End contact, oily cylinder one end of hydraulic actuator and gland, the other end contact with supporting disk, and supporting disk passes through installed in drag link end
Nut, the pad in portion are spacing.
Baffle plate and pull bar are fixed in rotor shaft by the utility model, and gland, hydraulic pressure are installed successively in the other end of pull bar
Pressurized strut, supporting disk, and with packing ring, nut fixation, during force, the fluid cylinder elongation of hydraulic actuator, and promote
The direction motion of the downward pulling force bearing press mounting of gland, completes the press fitting of bearing, the utility model realizes rotor shaft in axial nothing
Lower pulling force bearing is assembled to defined position in the state of spacing, avoided because bearing installation is not in place and percussion is made to bearing
Into damage, it is ensured that the security used, reduce it is unnecessary reprocess or change new product caused by cost allowance, shorten
Production cycle.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As illustrated, a kind of main reducing gear rotor shaft lower pulling force bearing assembling device includes pull bar 1, baffle plate 2, gland 3, liquid
Pressurized strut 4, supporting disk 5, nut 6, pad 7, centring sleeve 8 are pressed, the length of pull bar 1 is installed successively than more than rotor axial length 500mm
There are baffle plate 2, centring sleeve 8, gland 3, hydraulic actuator 4, supporting disk 5, nut 6, wherein pull bar 1 is fixed with baffle plate 2, and baffle plate 2 is in
Discoid, the seam for not assembling bearing end with rotor shaft coordinates；Centring sleeve 8 is in the form of annular discs, with stopping for rotor shaft assembling bearing end
Mouth coordinates；Gland 3 is tubular construction, and internal diameter coordinates than rotor shaft crest clearance, and external diameter is less than retainer, end face and bearing
Inner ring end contact, oil cylinder one end and the gland 3 of hydraulic actuator 4, the other end contact with supporting disk 5, and supporting disk 5 passes through installation
Nut 6, pad 7 in the end of pull bar 1 is spacing.
Baffle plate 2 when in use, is installed on pull bar 1 by the utility model first, then by pull bar 1 from rotor shaft not assembled shaft
The centre bore of the one end held penetrates, and coordinates the shoulder of baffle plate 2 and the seam of rotor shaft, the lower pulling force bearing after heating is installed
Onto the axle journal of rotor shaft, centring sleeve 8 is attached on pull bar 1 and coordinates with the seam of rotor shaft, be pressed onto the press-assembling surface of gland 3
On bearing inner ring, then hydraulic actuator 4 is installed on pull bar, supporting disk 5 is installed on pull bar 1 and is fixed on hydraulic actuation
On cylinder 4, then fixed with nut 6, pad 7, hydraulic actuator 4 is exerted a force by the handle of hydraulic actuator 4 and makees hydraulic pressure
The oil cylinder of dynamic cylinder 4 extends, and now hydraulic actuator 4 applies a power to the left by pull bar 1 to the right side of rotor shaft, passes through
Gland 3 applies a power to the right, in the presence of the opposite interaction force of both direction, the edge of gland 3 to lower pulling force bearing
The direction motion of the downward pulling force bearing press mounting of centring sleeve 8 and by lower pulling force bearing press mounting to rotor shaft, and until untill pressing.
Claims (1)
1. a kind of main reducing gear rotor shaft lower pulling force bearing assembling device, it is characterized in that, described assembling device includes pull bar
(1), baffle plate (2), gland (3), hydraulic actuator (4), supporting disk (5), nut (6), pad (7), centring sleeve (8), pull bar (1)
Length than more than rotor axial length 500mm, be sequentially installed with baffle plate (2), centring sleeve (8), gland (3), hydraulic actuator (4),
Supporting disk (5), nut (6), wherein pull bar (1) are fixed with baffle plate (2), and baffle plate (2) is in the form of annular discs, and bearing is not assembled with rotor shaft
The seam at end coordinates；Centring sleeve (8) is in the form of annular discs, coordinates with the seam of rotor shaft assembling bearing end；Gland (3) is tubular knot
Structure, internal diameter coordinate than rotor shaft crest clearance, and external diameter is less than retainer, end face and bearing inner ring end contact, and hydraulic pressure is made
Oil cylinder one end of dynamic cylinder (4) and gland (3), the other end contact with supporting disk (5), and supporting disk (5) installed in pull bar (1) by holding
Nut (6), the pad (7) in portion are spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720680936.2U CN206912641U (en) | 2017-06-12 | 2017-06-12 | Main reducing gear rotor shaft lower pulling force bearing assembling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720680936.2U CN206912641U (en) | 2017-06-12 | 2017-06-12 | Main reducing gear rotor shaft lower pulling force bearing assembling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206912641U true CN206912641U (en) | 2018-01-23 |
Family
ID=61314616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720680936.2U Expired - Fee Related CN206912641U (en) | 2017-06-12 | 2017-06-12 | Main reducing gear rotor shaft lower pulling force bearing assembling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206912641U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107199449A (en) * | 2017-06-12 | 2017-09-26 | 中国航发哈尔滨东安发动机有限公司 | Main reducing gear rotor shaft lower pulling force bearing assembling device |
| CN108436442A (en) * | 2018-06-04 | 2018-08-24 | 成都久和建设设备有限责任公司 | A kind of press-fitting tool |
-
2017
- 2017-06-12 CN CN201720680936.2U patent/CN206912641U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107199449A (en) * | 2017-06-12 | 2017-09-26 | 中国航发哈尔滨东安发动机有限公司 | Main reducing gear rotor shaft lower pulling force bearing assembling device |
| CN108436442A (en) * | 2018-06-04 | 2018-08-24 | 成都久和建设设备有限责任公司 | A kind of press-fitting tool |
| CN108436442B (en) * | 2018-06-04 | 2024-03-22 | 成都久和建设设备有限责任公司 | Press mounting tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180123 |