CN108044331A - The locking plate locking fixture of engine bearing clamp nut - Google Patents
The locking plate locking fixture of engine bearing clamp nut Download PDFInfo
- Publication number
- CN108044331A CN108044331A CN201711308594.2A CN201711308594A CN108044331A CN 108044331 A CN108044331 A CN 108044331A CN 201711308594 A CN201711308594 A CN 201711308594A CN 108044331 A CN108044331 A CN 108044331A
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- Prior art keywords
- locked
- seat
- nail
- locking plate
- lug
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
The present invention relates to aero-engine mounting technology fields, specifically provide the locking plate locking fixture of engine bearing clamp nut, including the seat that is locked, lug, top nail, connected nail and pressure ring, the cover for seat that is locked is arranged on the outside of bearing nut, cup type locking plate is connected to bearing nut bottom, the inner wall that is locked is provided with annular groove, at least three through holes are circumferentially placed in annular groove, lug is circumferentially fixed on the outer wall that is locked, the connecting hole connected with through hole is provided in lug, top nail is connected with lug, top nail is moved radially along the seat that is locked, connected nail is connected with the seat that is locked, connected nail is moved radially along the seat that is locked, pressure ring is arranged in annular groove, connected nail bottom is stretched into pressure ring, the internal face of pressure ring has the protrusion being adapted with the locking slot of bearing nut.By screwing each top nail cup type locking plate is made to ensure that cup type locking plate is disposably successfully locked along the locking slot homogeneous deformation on bearing nut.
Description
Technical field
The present invention relates to the locking plate lockings in aero-engine mounting technology field, more particularly to engine bearing clamp nut
Frock.
Background technology
It is more and more stringenter to the assembling quality requirement of aero-engine with the development of technology.As shown in Figure 1, it navigates at present
Empty engine section bearing nut 92 is locked using cup type locking plate 91, the locking degree of cup type locking plate 91 and locking plate service life
It directly influences bearing nut 92 and loosens failure, seriously affect assembling quality, so as to which engine test is caused to vibrate,
The even destruction of engine.
Existing cup type locking plate locking method relies primarily on operating personnel's experience and uses plug 93 or Flathead screwdriver work
Tool taps cup type locking plate 91, and cup type locking plate 91 is made to fit with locking slot 94, is had the disadvantage that：
1st, it is unstable to assemble quality, is affected by the technical merit of operating personnel.
2nd, hammering method can cause locking plate to generate very big concentrated stress, reduce the working strength of locking plate.
If the 3, percussion power F causes locking plate damage that can not use compared with conference, so as to the locking plate more renewed, cost is caused to increase
Add, efficiency of assembling reduces；If tap dynamics it is smaller it will cause locking plate locking degree locking effect is not achieved, it is necessary to strike repeatedly
It hits, extends assembly period.
The content of the invention
To overcome above-mentioned at least one defect existing in the prior art, the present invention provides engine bearing clamp nuts
Locking plate locking fixture, including：
The seat that is locked in a ring, the inner wall that is locked are provided with annular groove, and the annular groove is interior along week
To at least three through holes are placed with, the through hole radially opens up, and the cover for seat that is locked is arranged on the outside of bearing nut,
Cup type locking plate is connected to the bearing nut bottom；
Circumferentially it is fixed on the lug for the outer wall that is locked, the position of the lug, quantity and the annular groove
Through hole is identical, and the connecting hole connected with the through hole is provided in the lug；
The top nail being connected with the lug, the top nail are moved radially along the seat that is locked；
The slot bottom of the annular groove, institute are stretched out in the connected nail being connected with the seat that is locked, the connected nail bottom
The seat that is locked described in connected nail edge is stated to move radially；
The pressure ring being arranged in the annular groove, the through hole phase of the position of the pressure ring, quantity and the annular groove
Together, the connected nail bottom is stretched into the pressure ring, and the internal face of the pressure ring has the locking with the bearing nut
The protrusion that slot is adapted.
Preferably, the lug is mutually fixed by welding with the seat that is locked.
Preferably, the through hole of the seat that is locked is stepped hole, adjacent to the annular groove, the company at ladder
Nail outer wall is connect with being slidably connected at the ladder of the stepped hole of the seat that is locked.
Preferably, the outside of the connecting hole of the lug is helicitic texture, the top nail and the lug bolt.Pass through
Top nail is screwed to realize that it is moved radially along the seat that is locked.
Preferably, the number of openings of the annular groove for three and is circumferentially distributed in the annular groove.
Preferably, the center of camber line of the top nail through the pressure ring in the circumferential.
The locking plate locking fixture of engine bearing clamp nut provided by the invention, with extrusion forming locking mode instead of
It is previous to tap shaping locking mode, locking assembling is carried out to cup type locking plate, extrusion forming locking mode makes locking plate deformation along fibre
Dimension flows to directional spreding, reduces concentrated stress, improves the fatigue strength of locking plate, solves percussion shaping locking mode and causes
The problem of locking plate stress concentration is serious ensure that cup type locking plate is disposably successfully locked, while improve the work of cup type locking plate
Intensity so as to reduce previous assembly cost, improves efficiency of assembling and assembling quality.And this method can be applied to aviation
The locking assembling of cup type locking plate in all spectras such as engine, gas turbine.
Description of the drawings
It is exemplary below with reference to the embodiment of attached drawing description, it is intended to for the explanation and illustration present invention, and cannot manage
It solves as the limitation to protection scope of the present invention.
Fig. 1 is in the prior art using the operation chart of hammering method locking cup type locking plate；
Fig. 2 is the schematic three dimensional views of the locking plate locking fixture of engine bearing clamp nut provided by the invention；
Fig. 3 is the front sectional view of Fig. 2；
Fig. 4 is the partial enlarged view of Fig. 3.
Reference numeral：
10 are locked seat
20 lugs
30 top nails
40 connected nails
50 pressure rings
91 cup type locking plates
92 bearing nuts
93 plugs
94 locking slots
Specific embodiment
To make the purpose, technical scheme and advantage that the present invention is implemented clearer, below in conjunction in the embodiment of the present invention
Attached drawing, the technical solution in the embodiment of the present invention is further described in more detail.
It should be noted that：In the accompanying drawings, from beginning to end same or similar label represent same or similar element or
There is same or like element.Described embodiment is the implementation of part of the embodiment of the present invention rather than whole
Example, in the case where there is no conflict, the feature in embodiment and embodiment in the application can be mutually combined.Based in the present invention
Embodiment, those of ordinary skill in the art's all other embodiments obtained without creative efforts,
Belong to the scope of protection of the invention.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or position relationship of the instructions such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " is based on attached drawing institutes
The orientation or position relationship shown, is for only for ease of the description present invention and simplifies description rather than instruction or imply meaning
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that the present invention be protected
Protect the limitation of scope.
Herein, " schematic " expression " serving as example, example or explanation " should not will be described herein as " showing
Any diagram, the embodiment of meaning property " are construed to a kind of preferred or more advantageous technical solution.
It is respectively the three-dimensional of the locking plate locking fixture of engine bearing clamp nut provided by the invention shown in Fig. 2 and Fig. 3
Schematic diagram and front sectional view, which is applied to all spectras such as aero-engine, gas turbine, for cup type
The locking of locking plate, including the seat 10 that is locked, lug 20, top nail 30, connected nail 40 and pressure ring 50.
Seat 10 be locked in a ring, 10 inner wall of seat that is locked is provided with annular groove, circumferentially arranges in annular groove
There are at least three through holes, through hole radially opens up, i.e., the through hole central axis is locked in 10 center line of seat that is locked
Seat 10 is sheathed on 92 outside of bearing nut, and cup type locking plate 91 is connected to 92 bottom of bearing nut；Cup type locking plate 91
Section is L-shaped, and cup type locking plate 91 locks the bottom surface outer rim and side lower of bearing nut 92.
Lug 20 is circumferentially fixed on 10 outer wall of seat that is locked, in the present embodiment, lug 20 by welding with
10 phase of seat that is locked is fixed.The position of lug 20, quantity are identical with the through hole of annular groove, are provided in lug 20 and connect with through hole
Logical connecting hole.
Top nail 30 is connected with lug 20, and top nail 30 is moved radially along the seat 10 that is locked.In the present embodiment, the company of lug 20
The outside in hole is connect as helicitic texture, top nail 30 and 20 bolt of lug realize it along the seat that is locked by screwing top nail 30
10 move radially.
Connected nail 40 is connected with the seat 10 that is locked, and the slot bottom of annular groove, 40 edge of connected nail are stretched out in 40 bottom of connected nail
The seat 10 that is locked moves radially.In the present embodiment, the through hole of the seat 10 that is locked is stepped hole, adjacent to annular at ladder
Groove, 40 outer wall of connected nail at the ladder of the stepped hole for the seat 10 that is locked with being slidably connected.
Pressure ring 50 is arranged in annular groove, and the outer wall of pressure ring 50 is adapted with the groove bottom of annular groove, pressure ring 50
Position, quantity are identical with the through hole of annular groove, and 40 bottom of connected nail is stretched into pressure ring 50, and the internal face of pressure ring 50 has and axis
Hold the protrusion that the locking slot of clamp nut 92 is adapted.In the present embodiment, top nail 30 passes through the camber line of pressure ring 50 in the circumferential
Center.
In the present embodiment, the number of openings of annular groove for three and is circumferentially distributed in annular groove.Then lug 20, top nail
30th, the quantity of connected nail 40 and pressure ring 50 is three and is all circumferentially distributed in annular groove, phase between above-mentioned each similar component
Every 120 °.
The operation principle of the locking plate locking fixture of engine bearing clamp nut provided by the invention is as shown in figure 4, first
Locking fixture is sleeved on the bearing nut 92 equipped with cup type locking plate 90, the raised alignment bearings on pressure ring 50 is made to compress spiral shell
Locking slot on mother 92.Then each top nail 30 is screwed, top nail 30 promotes connected nail 40 to be carried out to close to the direction of cup type locking plate 91
It moves radially, connected nail 40 slides in the be locked through hole of seat 10 and the connecting hole of lug, and drives pressure ring 50 to disengaging
The direction of annular groove is moved, and the protrusion on 50 internal face of pressure ring squeezes cup type locking plate 91, makes cup type locking plate 91 along bearing pressure
Locking slot homogeneous deformation on tight nut 92, until cup type locking plate 91 is locked in place, i.e., top nail 30 can not turn.Last reversely rotation
Each top nail 30 is twisted, pressure ring 50 is made to lock 91 with cup type and is departed from, squeezing action is no longer generated, unloads locking fixture, cup type locking plate 91 fills
With completion.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, all should by the change or replacement that can be readily occurred in
It is included within the scope of the present invention.Therefore, protection scope of the present invention should using the scope of the claims as
It is accurate.
Claims (6)
1. the locking plate locking fixture of engine bearing clamp nut, which is characterized in that including：
The seat that is locked (10) in a ring, the seat that is locked (10) inner wall are provided with annular groove, in the annular groove
At least three through holes are circumferentially placed with, the through hole radially opens up, and the seat that is locked (10) is sheathed on bearing compression
On the outside of nut (92), cup type locking plate (91) is connected to the bearing nut (92) bottom；
Circumferentially it is fixed on the lug (20) of the seat that is locked (10) outer wall, position, quantity and the ring of the lug (20)
The through hole of connected in star is identical, and the connecting hole connected with the through hole is provided in the lug (20)；
The top nail (30) being connected with the lug (20), the top nail (30) move radially along the seat that is locked (10)；
The annular groove is stretched out in the connected nail (40) being connected with the seat that is locked (10), connected nail (40) bottom
Slot bottom, the connected nail (40) move radially along the seat that is locked (10)；
The pressure ring (50) being arranged in the annular groove, the position of the pressure ring (50), quantity and the annular groove it is logical
Hole is identical, and connected nail (40) bottom is stretched into the pressure ring (50), and the internal face of the pressure ring (50) has and the axis
Hold the protrusion that the locking slot of clamp nut (92) is adapted.
2. locking plate locking fixture according to claim 1, which is characterized in that the lug (20) by welding with
The seat that is locked (10) is mutually fixed.
3. locking plate locking fixture according to claim 1, which is characterized in that the through hole of the seat that is locked (10) is rank
Terraced hole, adjacent to the annular groove, connected nail (40) outer wall and the ladder of the seat that is locked (10) at ladder
It is slidably connected at the ladder in hole.
4. locking plate locking fixture according to claim 1, which is characterized in that the outside of the connecting hole of the lug (20) is
Helicitic texture, the top nail (30) and the lug (20) bolt.Realize that its edge is locked by screwing top nail (30)
Seat (10) moves radially.
5. locking plate locking fixture according to claim 1, which is characterized in that the number of openings of the annular groove is three
And circumferentially it is distributed in the annular groove.
6. locking plate locking fixture according to claim 5, which is characterized in that the top nail (30) passes through the pressure ring (50)
The center of camber line in the circumferential.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711308594.2A CN108044331B (en) | 2017-12-11 | 2017-12-11 | The locking plate locking fixture of engine bearing clamp nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711308594.2A CN108044331B (en) | 2017-12-11 | 2017-12-11 | The locking plate locking fixture of engine bearing clamp nut |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108044331A true CN108044331A (en) | 2018-05-18 |
| CN108044331B CN108044331B (en) | 2019-06-28 |
Family
ID=62123638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711308594.2A Active CN108044331B (en) | 2017-12-11 | 2017-12-11 | The locking plate locking fixture of engine bearing clamp nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108044331B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109648517A (en) * | 2018-12-10 | 2019-04-19 | 中国航发四川燃气涡轮研究院 | A kind of roller type synchronization locking device |
| CN110657151A (en) * | 2019-09-24 | 2020-01-07 | 哈尔滨电气动力装备有限公司 | Locking device for locking cup |
| CN112518658A (en) * | 2019-09-17 | 2021-03-19 | 中国航发商用航空发动机有限责任公司 | Lock ring compresses tightly frock |
| CN112692539A (en) * | 2019-10-23 | 2021-04-23 | 中国航发商用航空发动机有限责任公司 | Locking tool, locking system and locking method for compression nut |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201916325U (en) * | 2010-12-29 | 2011-08-03 | 广州市昊志机电有限公司 | Upper bearing inner ring locknut |
| CN102537007A (en) * | 2010-12-08 | 2012-07-04 | 美铝公司 | Locking nut assambly |
| CN202500875U (en) * | 2011-12-24 | 2012-10-24 | 珠海华丰纸业有限公司 | Bearing locking nut and components thereof |
| CN204327713U (en) * | 2014-12-11 | 2015-05-13 | 中航商用航空发动机有限责任公司 | Bearing positioning and locking nut and locking mechanism |
| JP2015224726A (en) * | 2014-05-28 | 2015-12-14 | Ntn株式会社 | Bearing lock implement, shaft and bearing device |
| CN205001396U (en) * | 2015-09-28 | 2016-01-27 | 中航商用航空发动机有限责任公司 | Locking locking ring, bearing locking structure and turbine engine |
-
2017
- 2017-12-11 CN CN201711308594.2A patent/CN108044331B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537007A (en) * | 2010-12-08 | 2012-07-04 | 美铝公司 | Locking nut assambly |
| CN201916325U (en) * | 2010-12-29 | 2011-08-03 | 广州市昊志机电有限公司 | Upper bearing inner ring locknut |
| CN202500875U (en) * | 2011-12-24 | 2012-10-24 | 珠海华丰纸业有限公司 | Bearing locking nut and components thereof |
| JP2015224726A (en) * | 2014-05-28 | 2015-12-14 | Ntn株式会社 | Bearing lock implement, shaft and bearing device |
| CN204327713U (en) * | 2014-12-11 | 2015-05-13 | 中航商用航空发动机有限责任公司 | Bearing positioning and locking nut and locking mechanism |
| CN205001396U (en) * | 2015-09-28 | 2016-01-27 | 中航商用航空发动机有限责任公司 | Locking locking ring, bearing locking structure and turbine engine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109648517A (en) * | 2018-12-10 | 2019-04-19 | 中国航发四川燃气涡轮研究院 | A kind of roller type synchronization locking device |
| CN112518658A (en) * | 2019-09-17 | 2021-03-19 | 中国航发商用航空发动机有限责任公司 | Lock ring compresses tightly frock |
| CN112518658B (en) * | 2019-09-17 | 2022-02-25 | 中国航发商用航空发动机有限责任公司 | Lock ring compresses tightly frock |
| CN110657151A (en) * | 2019-09-24 | 2020-01-07 | 哈尔滨电气动力装备有限公司 | Locking device for locking cup |
| CN112692539A (en) * | 2019-10-23 | 2021-04-23 | 中国航发商用航空发动机有限责任公司 | Locking tool, locking system and locking method for compression nut |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108044331B (en) | 2019-06-28 |
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