CN110332300A - A kind of end face compressing structure of bearing - Google Patents
A kind of end face compressing structure of bearing Download PDFInfo
- Publication number
- CN110332300A CN110332300A CN201910627974.5A CN201910627974A CN110332300A CN 110332300 A CN110332300 A CN 110332300A CN 201910627974 A CN201910627974 A CN 201910627974A CN 110332300 A CN110332300 A CN 110332300A
- Authority
- CN
- China
- Prior art keywords
- bearing
- nut
- face
- axis
- groove
- 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.)
- Pending
Links
- 238000009434 installation Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 101150038956 cup-4 gene Proteins 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The present invention relates to bearing mounting structure, in particular to the end face compressing structure of a kind of bearing.The bearing (3) is mounted on one end of axis (1), the structure includes nut (2), internal screw thread is machined in one end of axis (1), nut (2) is connected through a screw thread the one end for being fixed on axis, is pressed on the end face of bearing (3)；The structure further includes locking plate (4), raised (41) are respectively arranged on two end faces of locking plate (4), it opens internal thread shaft end to be provided with groove (5) on inner wall along axial direction, groove (6) is also provided on nut (2)；Locking plate (4) is located between nut (2) and bearing (3) end face, and the protrusion on locking plate (4) is installed respectively in the groove (5,6) of shaft end and nut.The technical solution utilizes limited space, solves the technical issues of bearing's looseness, realizes and reliably compress to bearing.
Description
Technical field
The present invention relates to bearing mounting structure, in particular to the end face compressing structure of a kind of bearing.
Background technique
Gear shaft at present in uni-drive gear box is supported when equal by bearings at both ends, and bearing inner ring is with gear shaft when work
Rotation, bearing is generally configured to be interference fitted with the cooperation of the gear shaft diameter of axle, but the convenience in order to guarantee bearing assembly or disassembly, with
And avoid excessive erection stress that bearing inner ring is caused to deform, influence bearing clearance and and running accuracy, bearing match with gear shaft
(generally 0.015 or so) less than normal that the magnitude of interference of conjunction is generally designed.The normal work of gear-box can be met in general
The needs of work.Incidentally some other functional structure, such as eccentric contract impeller, clutch and buffer are needed in gear shaft
Whens structure etc., since part is more, unstable factor increases when work, so that bearing is easy axial play.But in certain transmission gear
In case, gear shaft has been attached to clutch buffer gear, takes and directly carries out axial compression, but the general ruler of these mechanisms using bearing
Very little and inertia force is larger, and stationarity is bad when work, and bearing is be easy to cause axially to deviate from, and causes between the appearance of each part combination end face
There is the abrasion of the part end faces such as spacer pad, needs according to existing structure in gap, in the case where not scrapping existing part, increases
End face compressing structure.As shown in Fig. 1, clutch buffer gear 8 is installed, entire mechanism is carried out axially through bearing 3 on axis 1
It compresses, axial distance is adjusted by gasket 7 between bearing 3 and clutch buffer gear 8.
Summary of the invention
Present invention solves the technical problem that: in the case where not scrapping existing gear shaft, realizes and the axial direction of entire bearing is pressed
Tightly.
Technical solution of the present invention: a kind of end face compressing structure of bearing, the bearing is mounted on one end of axis, described
Structure includes nut, is machined with internal screw thread in one end of axis, nut is connected through a screw thread the one end for being fixed on axis, is pressed on bearing
End face on；
The structure further includes lock cup, locks and is respectively arranged with protrusion on two end faces of cup, opens internal thread shaft end
It is provided with groove along axial direction on inner wall, is also provided with groove on nut；
Locking plate is locked the protrusion on cup and is installed in the groove of shaft end and nut respectively between nut and bearing face.It should
Technical solution utilizes limited space, solves the technical issues of bearing's looseness, realizes and reliably compress to bearing.
Preferably, the lock cup and nut are pressed on bearing inner race end face.Avoid lock cup, nut and bearing element portion
Interference between part.
Preferably, the depth of shaft end internal screw thread is no more than bearing installation shoulder block position.Fully consider that bearing installs shoulder block
The influence of location bending and shear stress avoids the intensity for weakening axis.
Detailed description of the invention
Fig. 1 is prior art construction schematic diagram；
Fig. 2 is lock plate structure schematic diagram；
Fig. 3 is nut structure diagram；
Fig. 4 is the technical program structural schematic diagram.
In figure: 1-raised 5-groove 6-groove, the 7-gaskets of 2-nut of axis, 3-bearing, 4-lock cup 41-
8-buffer gears
Specific embodiment
As Figure 1 and Figure 4, nut 2 is tightened with the screw-internal thread fit on axis 1, will lock cup 4, bearing 3, gasket 7, buffer
8 axial compression of structure, to realize substrate hold-down function.Lock cup positioned at bearing and nut between, one end two at protrusion 41 and shaft end
Groove 6 cooperate, after assembly by lock cup edge pressed-in nut 2 groove 6 in, to realize the locking function of nut.
In the technical program, supplementary processing internal screw thread and facing groove 5 need to be carried out to axis 2, to avoid reducing the strong of axis 2
Degree, the depth of internal screw thread are less than the shoulder block position of axis.
Processing lock cup as shown in Figure 2 avoids wherein the end face diameter of lock cup is less than the outside diameter of inner ring of bearing 3 to bearing
Normal operation has an impact.The height for locking cup protrusion 41 need to assemble rear end face according to bearing 3 and carry out at a distance from 2 end face of axis really
It is fixed, guarantee assembly rear projection 41 can insertion axis groove 6 in, to guarantee locking effect.
Nut processing 2 as shown in Figure 3.After processing is completed, assembled in sequence as shown in Figure 4 is simultaneously locked for axis 1, nut 2, lock cup 4
Lock cup.
Claims (4)
1. a kind of end face compressing structure of bearing, the bearing (3) is mounted on one end of axis (1), it is characterized in that: the structure
Including nut (2), it is machined with internal screw thread in one end of axis (1), nut (2) is connected through a screw thread the one end for being fixed on axis, compresses
On the end face of bearing (3).
2. a kind of end face compressing structure of bearing according to claim 1, it is characterized in that: the structure further includes lock cup
(4), it locks and is respectively arranged with raised (41) on two end faces of cup (4), open internal thread shaft end and be provided on inner wall along axial direction
Groove (5) is also provided with groove (6) on nut (2)；
Lock cup (4) is located between nut (2) and bearing (3) end face, locks the protrusion on cup (4) and is separately mounted to shaft end and nut
In groove (5,6).
3. a kind of end face compressing structure of bearing according to claim 2, it is characterized in that: the lock cup (4) and nut (2)
It is pressed on bearing inner race end face.
4. a kind of end face compressing structure of bearing according to claim 1, it is characterized in that: the depth of shaft end internal screw thread does not surpass
Cross bearing installation shoulder block position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910627974.5A CN110332300A (en) | 2019-07-11 | 2019-07-11 | A kind of end face compressing structure of bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910627974.5A CN110332300A (en) | 2019-07-11 | 2019-07-11 | A kind of end face compressing structure of bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110332300A true CN110332300A (en) | 2019-10-15 |
Family
ID=68146595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910627974.5A Pending CN110332300A (en) | 2019-07-11 | 2019-07-11 | A kind of end face compressing structure of bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110332300A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110792612A (en) * | 2019-12-10 | 2020-02-14 | 九州云箭(北京)空间科技有限公司 | Low-temperature immersed pump |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB778607A (en) * | 1955-03-10 | 1957-07-10 | Skf Svenska Kullagerfab Ab | Improvements in or relating to locking devices for the nuts of adapter sleeves for rolling bearings |
| GB790806A (en) * | 1955-12-02 | 1958-02-19 | Hendrik Pieter Van Der Knoop | A bearing assembly for an axle and hub, especially for use in motor-vehicles |
| JP2001208087A (en) * | 2000-01-27 | 2001-08-03 | Ntn Corp | Bearing device and its lock nut for bearing |
| US20060291953A1 (en) * | 2005-06-24 | 2006-12-28 | Snecma | Device for rotationally locking a clamping nut for a component on a shaft, clamping nut and shaft comprising it, and aircraft engine equipped therewith |
| CN207526855U (en) * | 2017-11-02 | 2018-06-22 | 中国航发哈尔滨东安发动机有限公司 | A kind of screw-threaded coupling device |
| CN207961462U (en) * | 2018-01-12 | 2018-10-12 | 中国航发哈尔滨东安发动机有限公司 | A kind of shafting locking mechanism |
| CN211901511U (en) * | 2019-07-09 | 2020-11-10 | 中国航发哈尔滨东安发动机有限公司 | End face pressing structure of bearing |
-
2019
- 2019-07-11 CN CN201910627974.5A patent/CN110332300A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB778607A (en) * | 1955-03-10 | 1957-07-10 | Skf Svenska Kullagerfab Ab | Improvements in or relating to locking devices for the nuts of adapter sleeves for rolling bearings |
| GB790806A (en) * | 1955-12-02 | 1958-02-19 | Hendrik Pieter Van Der Knoop | A bearing assembly for an axle and hub, especially for use in motor-vehicles |
| JP2001208087A (en) * | 2000-01-27 | 2001-08-03 | Ntn Corp | Bearing device and its lock nut for bearing |
| US20060291953A1 (en) * | 2005-06-24 | 2006-12-28 | Snecma | Device for rotationally locking a clamping nut for a component on a shaft, clamping nut and shaft comprising it, and aircraft engine equipped therewith |
| CN207526855U (en) * | 2017-11-02 | 2018-06-22 | 中国航发哈尔滨东安发动机有限公司 | A kind of screw-threaded coupling device |
| CN207961462U (en) * | 2018-01-12 | 2018-10-12 | 中国航发哈尔滨东安发动机有限公司 | A kind of shafting locking mechanism |
| CN211901511U (en) * | 2019-07-09 | 2020-11-10 | 中国航发哈尔滨东安发动机有限公司 | End face pressing structure of bearing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110792612A (en) * | 2019-12-10 | 2020-02-14 | 九州云箭(北京)空间科技有限公司 | Low-temperature immersed pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191015 |
|
| RJ01 | Rejection of invention patent application after publication |