CN107288997A - Bearing unit - Google Patents
Bearing unit Download PDFInfo
- Publication number
- CN107288997A CN107288997A CN201610228381.8A CN201610228381A CN107288997A CN 107288997 A CN107288997 A CN 107288997A CN 201610228381 A CN201610228381 A CN 201610228381A CN 107288997 A CN107288997 A CN 107288997A
- Authority
- CN
- China
- Prior art keywords
- inner ring
- bearing
- bearing unit
- platform part
- hole
- 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
- 238000007789 sealing Methods 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 abstract 2
- 238000005096 rolling process Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 238000011900 installation process Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000222712 Kinetoplastida Species 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002699 waste material Substances 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/44—Needle bearings
- F16C19/48—Needle bearings with two or more rows of needles
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/583—Details of specific parts of races
- F16C33/585—Details of specific parts of races of raceways, e.g. ribs to guide the rollers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The invention discloses a bearing unit which comprises a first bearing and a second bearing which are arranged in the axial direction, wherein the first bearing comprises a first inner ring, the second bearing comprises a second inner ring which is arranged side by side with the first inner ring in the axial direction, the second inner ring is provided with a platform part protruding towards the first inner ring, the first inner ring is provided with a matching part positioned on the radial outer side of the platform part, a detachable fastener is arranged on the platform part, the matching part is provided with a blocking part, and the detachable fastener prevents the blocking part from moving towards the direction far away from the second inner ring. The first inner ring and the second inner ring are axially limited by the detachable fasteners, so that the bearing component is convenient to operate and cannot be damaged.
Description
Technical field
The present invention relates to technical field of bearings, more particularly to the connection for preventing adjacent bearing from producing axial displacement
Structure.
Background technology
As shown in figure 1, a kind of existing bearing unit includes the He of clutch shaft bearing 1 being arranged side by side in the axial direction
Second bearing 2.Clutch shaft bearing 1 includes the first outer ring 11, the first inner ring 12 and positioned at the first outer ring 11 and the
Some first rolling elements 13 between one inner ring 12.Second bearing 2 includes the second outer ring 21, the second inner ring 22
And some second rolling elements 23 between the second outer ring 21 and the second inner ring 22.Wherein, the first outer ring
11 and the location and installation of the second outer ring 21 in same housing 3.One locating snap ring 4 is by the first inner ring 12 and second
Circle 22 is connected, so that clutch shaft bearing 1, second bearing 2 and housing 3 are connected as a single entity.
During specific assembling, the outer ring 11,21 of clutch shaft bearing 1 and second bearing 2 is successively pressed into housing 3, connect
And the inner assembly (the second inner ring 22, the second rolling element 23 and the second retainer) of second bearing 2 is enclosed on work
Load onto, then will press-fit the first outer ring 11, the housing 3 of the second outer ring 21 is inserted in, then by first axle
The inner assembly (the first inner ring 12, the first rolling element 13 and the first retainer) for holding 1 is put into, and finally compression stops
It is put into the first inner ring 12 of clutch shaft bearing 1, is pushed into locating snap ring 4 with frock, until locating snap ring after rotating ring 4
4 block the first inner ring 12, the groove 5 of the inner side of the second inner ring 22.
In existing scheme, two bearings 1,2 and housing 3 are held together by locating snap ring 4, it is convenient
The carrying of whole bearing unit, installation and removal, but have the following disadvantages:
1. locating snap ring easily scratches internal diameter when passing through inner ring;
2. the installation of locating snap ring needs special frock, waste time and energy;
3. mounted locating snap ring is difficult to take out, causes dismounting bearing very difficult, be easily caused whole bearing
Scrapping for unit, that is, allow to dismounting, can also there is secondary injury to bearing, and in unloading process,
Risk with injury operating personnel.
Accordingly, it is desirable to provide a kind of improved bearing unit is to solve the above problems.
The content of the invention
The problem of present invention is solved is to provide a kind of bearing unit conveniently installed and dismantled.
To solve the above problems, the present invention is adopted the following technical scheme that:A kind of bearing unit, is included in axle
The clutch shaft bearing and second bearing set up, clutch shaft bearing include the first inner ring, second bearing include with
The second inner ring that first inner ring is arranged side by side in the axial direction, second inner ring has towards in first
The platform part of protrusion is enclosed, first inner ring has positioned at the auxiliary section of the platform part radial outside, institute
State and dismountable fastener is installed in platform part, there is stop part on the auxiliary section, it is described detachable
Fastener prevent the stop part from being directed away from the direction movement of the second inner ring.
Preferably, the stop part extends from the end of the auxiliary section towards the platform part, so that
A receiving space is formed between the auxiliary section and the platform part.
Preferably, form dismountable fastener is installed and diametrically run through in the platform part
Through hole.
Preferably, dismountable fastener extends into the receiving space.
Preferably, the through hole has multiple and circumferentially spaced.
Preferably, dismountable fastener is trip bolt, and the through hole is screwed hole.
Preferably, it is provided with handle hole on the trip bolt.
Preferably, first inner ring is provided with the first groove in radially outer, and second inner ring is in footpath
Outside is provided with the second groove, first groove collectively forms one sealing of receiving with second groove
The accommodating chamber of circle.
Compared with prior art, the present invention has advantages below:Using removable fasteners to the first inner ring
Axial limiting is carried out with the second inner ring, it is easy to operate, and damage will not be caused to parts of bearings.
Brief description of the drawings
Fig. 1 is the profile of prior art bearing unit;
Fig. 2 is the profile (not showing housing) of bearing unit of the present invention;
Fig. 3 is the enlarged diagram of a-quadrant in Fig. 2;
Fig. 4 is the stereogram of the second inner ring.
Embodiment
As in Figure 2-4, bearing unit of the present invention includes the clutch shaft bearing 100 and second being arranged side by side vertically
Bearing 200.Clutch shaft bearing 100 include the first outer ring 101, the first inner ring 102, positioned at the first outer ring 101 with
Some first rolling elements 103 and retainer 104 between first inner ring 102.Second bearing 200 includes second
Outer ring 201, the second inner ring 202, some second rollings between the second outer ring 201 and the second inner ring 202
Kinetoplast 203 and retainer 204.In this embodiment, clutch shaft bearing 100, second bearing 200 be all
For taper roll bearing.
Second inner ring 202 has the platform part 205 protruded axially towards the first inner ring 102, in platform part
There is the through hole 206 radially broken through with to install a dismountable fastener 300 on 205.First inner ring
102 have the auxiliary section 105 protruded axially towards the second inner ring 202, and the auxiliary section 105 is located at platform part
205 radial outside is simultaneously provided with the stop that platform part 205 is radially extended in the end of auxiliary section 105
Portion 106.A receiving space 400 is so formed between platform part 205 and auxiliary section 105.Through hole 206 is with being somebody's turn to do
Receiving space 400 is connected.
In specific installation process, when installing the second inner ring 202, dismountable fastener 300 is pre-installed
To platform part 205, removably fastener 300 and through hole 206 dismountable fastener will be ensured with merging
300 without departing from platform part 205 radially-outer surface, when so can ensure the first inner ring 102 of subsequent installation,
Dismountable fastener 300 does not constitute stop.Specifically, the radially-outer surface of platform part 205 can be as leading
Guide the first inner ring 102 to move and finally realize towards the second inner ring 202 to face to abut, in this process,
The radially-outer surface that stop part 106 is close to platform part 205 moves and crosses through hole 206.At this moment operative employee is used
Tool makes dismountable fastener 300 extend into receiving space 400, stops so as to be constituted to stop part 106, prevents
Only the first inner ring 102 is separated from each other in the axial direction with the second inner ring 202.The operation of instrument for convenience, can
The fastener 300 of dismounting has handle hole 301.
Due to there is gap, it is necessary to take certain close in the joint of the first inner ring 102 and the second inner ring 202
Envelope.In the present embodiment, the first inner ring 102 is provided with the first groove 107, the second inner ring in radially outer
202 are provided with the second groove 207 in radially outer, and the first groove 107 and the second groove 207 are collectively forming receiving
The accommodating chamber of sealing ring 500.In installation process, sealing ring 500 is initially mounted on the second groove 207, portion
Point hanging, when the first inner ring 102 of subsequent installation, it is recessed that the overhanging portion of sealing ring 500 may be housed in first
Groove 107.Because platform part 205 can realize accurate guiding in the present invention, so that sealing ring 500 is hanging
Part is accurately realized with the first groove 107 to be coordinated, and is prevented because contraposition is inaccurate and pushes up sealing ring 500 partially.
Preferably, removable fasteners 300 are to have screw thread in holding screw, through hole 206.Installation process
In, holding screw can be screwed in the through hole 206 of platform part 205 in advance, treat the first inner ring 102 and the second inner ring
202 alignment are screwed into holding screw with simple die nut until being seen by the endoporus of the first inner ring 102 after being put into
Lose.When parts of bearings needs to change or overhauled, holding screw can be screwed back with die nut
To original state, the axial displacement cancelled between the first inner ring 102 and the second inner ring 202 is limited, thus
The first inner ring 102 and the second inner ring 202 can be easily separated.Certainly, in order to preferably it is spacing, tightly
Determining screw can be spaced apart multiple in the circumferential, and accordingly, through hole 206 is also required to set same multiple.
The present invention carries out axial limiting, operation side using removable fasteners to the first inner ring and the second inner ring
Just, and parts of bearings will not be caused damage.
Although the present invention is only described with regard to some exemplary embodiments, these are described should be only as showing
Example is without being construed as limiting.In the range of appended claims record, do not depart from spirit of the invention and
Under ambit, what various change was equally possible.
Claims (8)
1. a kind of bearing unit, including the clutch shaft bearing and second bearing set in the axial direction, clutch shaft bearing include
First inner ring, second bearing includes the second inner ring being arranged side by side in the axial direction with first inner ring,
Characterized in that, second inner ring has in the platform part protruded towards the first inner ring, described first
Circle is dismountable with being provided with the auxiliary section of the platform part radial outside, the platform part
There is stop part, dismountable fastener prevents the stop part on fastener, the auxiliary section
It is directed away from the direction movement of the second inner ring.
2. bearing unit according to claim 1, it is characterised in that the stop part is from the auxiliary section
End extend towards the platform part, so as to form one between the auxiliary section and the platform part
Receiving space.
3. bearing unit according to claim 2, it is characterised in that formed in the platform part and install institute
State dismountable fastener and the through hole diametrically run through.
4. bearing unit according to claim 3, it is characterised in that dismountable fastener extension
Enter the receiving space.
5. bearing unit according to claim 4, it is characterised in that the through hole has multiple and along week
To being spaced apart.
6. bearing unit as claimed in any of claims 1 to 5, it is characterised in that described removable
The fastener unloaded is trip bolt, and the through hole is screwed hole.
7. bearing unit according to claim 6, it is characterised in that behaviour is provided with the trip bolt
Make hole.
8. bearing unit as claimed in any of claims 1 to 5, it is characterised in that described first
Inner ring is provided with the first groove in radially outer, and it is recessed that second inner ring is provided with second in radially outer
Groove, first groove collectively forms the accommodating chamber for accommodating a sealing ring with second groove.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610228381.8A CN107288997A (en) | 2016-04-13 | 2016-04-13 | Bearing unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610228381.8A CN107288997A (en) | 2016-04-13 | 2016-04-13 | Bearing unit |
Publications (1)
Publication Number | Publication Date |
---|---|
CN107288997A true CN107288997A (en) | 2017-10-24 |
Family
ID=60095911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610228381.8A Pending CN107288997A (en) | 2016-04-13 | 2016-04-13 | Bearing unit |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN107288997A (en) |
-
2016
- 2016-04-13 CN CN201610228381.8A patent/CN107288997A/en active Pending
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171024 |
|
WD01 | Invention patent application deemed withdrawn after publication |