CN207111704U - A kind of combination unit of rolling bearing and sliding bearing - Google Patents
A kind of combination unit of rolling bearing and sliding bearing Download PDFInfo
- Publication number
- CN207111704U CN207111704U CN201721070802.5U CN201721070802U CN207111704U CN 207111704 U CN207111704 U CN 207111704U CN 201721070802 U CN201721070802 U CN 201721070802U CN 207111704 U CN207111704 U CN 207111704U
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- Prior art keywords
- rolling bearing
- bearing
- sliding bearing
- sliding
- rolling
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Abstract
The utility model discloses a kind of rolling bearing and the combination unit of sliding bearing, including the rolling bearing and two sliding bearings for being arranged on installation axle between the runner that works, wherein, the inner ring of sliding bearing coordinates with installation axle, outer ring and the installation inner hole of work runner；Described two sliding bearings are separately positioned on the both sides of rolling bearing, and endoporus and the installation axle of sliding bearing coordinate, the installation inner hole of the external cylindrical surface and work runner of sliding bearing.The novel compositions device of the rolling bearing and sliding bearing can either bear to be inclined to the unbalance loading of any side of rolling bearing, while and can enough plays sealing function instead of sealing ring to the both ends of rolling bearing.
Description
Technical field
It the utility model is related to a kind of bearing, and in particular to a kind of combination unit of rolling bearing and sliding bearing.
Background technology
Rolling bearing is that the sliding friction between axle and axle bed by operating is changed into rolling friction, so as to reduce friction loss
A kind of accurate mechanical organ.But the unbalance loading ability that in use, rolling bearing is born is small, is easily damaged.
Application publication number is that CN101586619A application for a patent for invention discloses a kind of hydrodynamic bearing and rolling bearing
Composite bearing device, hydrodynamic bearing and the rolling bearing of the composite bearing device are co-axially mounted, rolling bearing inner ring (blowout patche) with
Certain interval is set up between rolling element in support side, and the gap is less than hydrodynamic bearing gap, is undertaken the construction of by dynamic pressure shaft
The pressure membrane erected makes rotor suspension in the range of rolling bearing gap to realize support conversion, and low-speed stage relies on rolling bearing
Support, high speed stage support by hydrodynamic bearing.
The device has the following disadvantages in real work：
1st, understood with reference to the Figure of description of the patent document, when unbalance loading occurs, because hydrodynamic bearing is arranged on rolling
The side of bearing, therefore the device can only bear the unbalance loading in a direction, when the unbalance loading of opposite direction occurs, the unbalance loading can only
By roller bearings, therefore easily cause the damage of rolling bearing.
2nd, need to set sealing ring to seal rolling bearing at the both ends of rolling bearing on the device, prevent lubricating oil
Leakage.
Utility model content
The purpose of this utility model is to overcome the shortcomings of rolling bearing and sliding bearing, there is provided a kind of rolling bearing and cunning
It is any that the novel compositions device of the combination unit of dynamic bearing, the rolling bearing and sliding bearing can either bear deviation rolling bearing
The unbalance loading of side, while and can enough plays sealing function instead of sealing ring to the both ends of rolling bearing.
The utility model solve above-mentioned technical problem technical scheme be：
A kind of combination unit of rolling bearing and sliding bearing, including the rolling for being arranged on installation axle between the runner that works
Bearing and two sliding bearings, wherein, inner ring and the installation axle of sliding bearing coordinate, outer ring and the installation endoporus of work runner
Coordinate；Described two sliding bearings are separately positioned on the both sides of rolling bearing, and endoporus and the installation axle of sliding bearing coordinate, slided
The installation inner hole of the external cylindrical surface of bearing and work runner.
A preferred scheme of the present utility model, wherein, the work runner is sprocket wheel, gear or belt wheel.
A preferred scheme of the present utility model, wherein, in the installation axle with rolling bearing and sliding bearing ordinatedly
Provided with lubricant passage way, the lubricant passage way is made up of axes section and radial section, wherein, end shape of the axes section in installation axle
Into oil inlet, axes section is axially extending from the oil inlet, radial section row shape at the external cylindrical surface of installation axle
Into oil-out, radial section extends from the oil-out along radial direction to be connected with the axes section.Enter when to combination unit inside
During row lubricating oil replenishing, lubricating oil flows to axes section from oil-out, then radial section is flowed to from axes section, finally at oil-out
Outflow, reach along the external cylindrical surface of installation axle and rolling bearing and sliding bearing are moistened at rolling bearing and sliding bearing
It is sliding.By setting above-mentioned lubricant passage way, the supplement to lubricating oil in rolling bearing and sliding bearing can be realized, so as to ensure to roll
Dynamic bearing works with sliding bearing in the case where lubrication is good.
Preferably, the installation endoporus of the work runner is shoulder hole, including macropore and aperture, and the rolling bearing is set
In macropore, spacer is additionally provided with the macropore, wherein, a side end face of spacer axial direction contacts with rolling bearing supports rolling bearing
On cascaded surface, another side end face of spacer axial direction be located at the end face side of the work runner, the external cylindrical surface of spacer with greatly
Hole coordinates, and the external cylindrical surface of the inner ring of spacer and one of sliding bearing coordinates, the aperture and another sliding bearing
External cylindrical surface coordinates.The purpose so set is, the peace of rolling bearing can be realized under the mating reaction of cascaded surface and spacer
Dress and positioning, spacer and aperture are used for the installation of sliding bearing.
Preferably, the rolling bearing is arranged on the centre of the installation endoporus of work runner, and the sliding bearing is symmetrically
It is arranged on the both ends of rolling bearing.In this way, can make rolling bearing and sliding bearing stress equalization, stability is good.
Preferably, the inner ring of the spacer is shoulder hole, including first order shoulder hole and second level shoulder hole, wherein,
Step hole is less than second level shoulder hole, and the external cylindrical surface of the first order shoulder hole and sliding bearing coordinates, and described second
Level shoulder hole connects with the ball and retainer of rolling bearing in the axial direction, connects in radial directions with the oil-out
It is logical.So, the lubricating oil flowed out at oil-out can be flowed into the ball and retainer of rolling bearing through macropore, so as to
It is enough that lubricating oil in rolling bearing is timely supplemented.
Preferably, the oil inlet is provided with inlet nozzle.During oiling, the inlet nozzle is connected with fuel feed pump, is added so as to convenient
Oil.
A preferred scheme of the present utility model, wherein, the outer end of the sliding bearing is provided with locating ring, one of sliding
The locating ring of dynamic bearing is bonded with an end face of the runner that works, the end face of the locating ring of another sliding bearing and the spacer
Fitting.So setting is advantageous in that, axially position effect can be played to sliding bearing.
Operation principle of the present utility model is：
During work, when positive load of the combination unit by work runner, the positive load is by sliding bearing and rolling
Bearing carries jointly；When unbalance loading of the combination unit by work runner, the unbalance loading is mainly carried by sliding bearing, specifically,
When unbalance loading occurs to the left side of rolling bearing, the sliding bearing on the left of this is played a supporting role to the unbalance loading；When to the axis of rolling
When unbalance loading occurs for the right side held, the sliding bearing on the right side of this is played a supporting role to the unbalance loading.Due to sliding bearing and installation axle
Between contacted for face, radial direction bearing capacity is strong, hence in so that combination unit with rub it is small on the premise of, bear the energy of unbalance loading
Power greatly improves.In addition, sliding bearing is arranged on the both sides of rolling bearing, sealing function is served to the both ends of rolling bearing,
So as to omit the sealing structure of rolling bearing both sides.
The utility model has following beneficial effect compared with prior art：
1st, both there is the advantages of rolling bearing friction is small during the combination unit work, again there is sliding bearing can bear greatly
The advantages of unbalance loading, therefore service behaviour greatly improves, while also increase its use range.
2nd, when unbalance loading occurs, the combination unit can bear to be inclined to the unbalance loading of any side of rolling bearing, so as to well
Rolling bearing is played a protective role.
3rd, the sliding bearing in the device is arranged on the both ends of rolling bearing, and it is close to play dynamic to rolling bearing during exercise
Envelope acts on, and so as to eliminate the use of sealing ring, has saved production cost.
4th, rolling bearing exists in the running vibrates the problem of big, and the vibration both easily caused to damage to parts, and shape
Into noise pollution；And caused oil film has vibration absorption ability to sliding bearing in the running, therefore set at the both ends of rolling bearing
Sliding bearing can efficiently reduce vibration, harm caused by so as to reduce vibration.
Brief description of the drawings
Fig. 1 is the structural representation of the combination unit of a kind of rolling bearing of the present utility model and sliding bearing.
Fig. 2 be Fig. 1 shown in rolling bearing and sliding bearing combination unit in lubricant passage way structural representation.
Fig. 3 is the structural representation of the sliding bearing shown in Fig. 1.
Embodiment
The utility model is described in further detail with reference to embodiment and accompanying drawing, but implementation of the present utility model
Mode not limited to this.
Referring to Fig. 1-Fig. 3, a kind of combination unit of rolling bearing and sliding bearing, including it is arranged on installation axle 1 and work
Rolling bearing 3 and two sliding bearings 4 between runner 2, wherein, inner ring and the installation axle 1 of sliding bearing 4 coordinate, outer ring
With the installation inner hole for the runner 2 that works；Described two sliding bearings 4 are separately positioned on the both sides of rolling bearing 3, sliding bearing
4 endoporus coordinates with installation axle 1, the installation inner hole of the external cylindrical surface and work runner 2 of sliding bearing 4.Wherein, the work
Make runner to form for sprocket wheel, gear or belt wheel, sprocket wheel is shown as in Fig. 1.
Referring to Fig. 1 and Fig. 2, lubricant passage way 5 is ordinatedly provided with rolling bearing 3 and sliding bearing 4 in the installation axle 1,
The lubricant passage way 5 is made up of axes section 5-1 and radial section 5-2, wherein, the axes section 5-1 is formed in the end of installation axle 1
Oil inlet, axes section 5-1 is axially extending from the oil inlet, and the radial section 5-2 is at the external cylindrical surface of installation axle 1
Row forms oil-out, and radial section 5-2 extends from the oil-out along radial direction to be connected with the axes section 5-1.When to combination
When oil supply is lubricated inside device, lubricating oil flows to axes section 5-1 from oil-out, is then flowed to radially from axes section 5-1
Section 5-2, finally flows out at oil-out, is reached along the external cylindrical surface of installation axle 1 at rolling bearing 3 and sliding bearing 4 to rolling
Dynamic bearing 3 and sliding bearing 4 are lubricated.By setting above-mentioned lubricant passage way 5, can realize to rolling bearing 3 and sliding axle
The supplement of lubricating oil in 4 is held, so as to ensure that rolling bearing 3 works with sliding bearing 4 in the case where lubrication is good.
Referring to Fig. 1 and Fig. 2, the installation endoporus of the work runner 2 is shoulder hole, including macropore and aperture, the rolling
Bearing 3 is arranged in macropore, and spacer 6 is additionally provided with the macropore, wherein, a side end face of the axial direction of spacer 6 contacts with rolling bearing 3
Rolling bearing 3 is against on cascaded surface, another side end face of the axial direction of spacer 6 is located at the end face side of the work runner 2, spacer
6 external cylindrical surface coordinates with macropore, and the external cylindrical surface of the inner ring of spacer 6 and one of sliding bearing 4 coordinates, the aperture with
The external cylindrical surface of another sliding bearing 4 coordinates.The purpose so set is, energy under the mating reaction of cascaded surface and spacer 6
The installation and positioning of rolling bearing 3 are enough realized, spacer 6 and aperture are used for the installation of sliding bearing 4.
Referring to Fig. 1 and Fig. 2, the rolling bearing 3 is arranged on the centre of the installation endoporus of work runner, the sliding bearing
4 are symmetrically disposed in the both ends of rolling bearing 3.In this way, rolling bearing 3 and the stress equalization of sliding bearing 4 can be made, surely
It is qualitative good.
Referring to Fig. 1 and Fig. 2, the inner ring of the spacer 6 is shoulder hole, including first order shoulder hole and second level shoulder hole,
Wherein, first order shoulder hole is less than second level shoulder hole, and the external cylindrical surface of the first order shoulder hole and sliding bearing 4 coordinates,
The second level shoulder hole connects with the ball and retainer of rolling bearing 3 in the axial direction, in radial directions with it is described
Oil-out connects.So, the lubricating oil flowed out at oil-out can be flowed into the ball and retainer of rolling bearing 3 through macropore
It is interior, so as to timely be supplemented the lubricating oil in rolling bearing 3.
Referring to Fig. 1 and Fig. 2, the oil inlet is provided with inlet nozzle 7.During oiling, the inlet nozzle 7 is connected with fuel feed pump, from
And conveniently refuel.The outer end of the sliding bearing 4 is provided with locating ring 4-1, the locating ring 4-1 and work of one of sliding bearing 4
Make the end face fitting of runner 2, the locating ring 4-1 of another sliding bearing 4 is bonded with the end face of the spacer 6.So set
Putting is advantageous in that, axially position effect can be played to sliding bearing 4.
Referring to Fig. 1-Fig. 3, the operation principle that rolling bearing of the present utility model combines the unit with sliding bearing is：Work
When, when positive load of the combination unit by work runner 2, the positive load is held jointly by sliding bearing 4 and rolling bearing 3
Carry；When unbalance loading of the combination unit by work runner 2, the unbalance loading is mainly carried by sliding bearing 4, specifically, when to rolling
When unbalance loading occurs for the left side of bearing 3, the sliding bearing 4 on the left of this is played a supporting role to the unbalance loading；When to the right side of rolling bearing 3
When unbalance loading occurs for side, the sliding bearing 4 on the right side of this is played a supporting role to the unbalance loading.Due between sliding bearing 4 and installation axle 1
Contacted for face, radial direction bearing capacity is strong, hence in so that combination unit, on the premise of small with friction, the ability for bearing unbalance loading is big
It is big to improve.In addition, sliding bearing 4 is arranged on the both sides of rolling bearing 3, sealing function is served to the both ends of rolling bearing 3, from
And the sealing structure of the both sides of rolling bearing 3 can be omitted.
Above-mentioned is the preferable embodiment of the utility model, but embodiment of the present utility model is not by the above
Limitation, it is other it is any without departing from Spirit Essence of the present utility model with made under principle change, modification, replacement, combine, letter
Change, should be equivalent substitute mode, be included within the scope of protection of the utility model.
Claims (8)
1. the combination unit of a kind of rolling bearing and sliding bearing, it is characterised in that including being arranged on installation axle and work runner
Between rolling bearing and two sliding bearings, wherein, the inner ring of sliding bearing coordinates with installation axle, outer ring and work runner
Installation inner hole；Described two sliding bearings are separately positioned on the both sides of rolling bearing, the endoporus of sliding bearing and installation
Axle coordinates, the installation inner hole of the external cylindrical surface and work runner of sliding bearing.
2. the combination unit of rolling bearing according to claim 1 and sliding bearing, it is characterised in that the work runner
For sprocket wheel, gear or belt wheel.
3. the combination unit of rolling bearing according to claim 2 and sliding bearing, it is characterised in that in the installation axle
Lubricant passage way is ordinatedly provided with rolling bearing and sliding bearing, the lubricant passage way is made up of axes section and radial section, wherein, institute
State axes section and form oil inlet in the end of the installation axle, axes section is axially extending from the oil inlet, described
Radial section at the external cylindrical surface of the installation axle row formed oil-out, radial section from the oil-out along radial direction extension with
The axes section connection.
4. the combination unit of rolling bearing according to claim 3 and sliding bearing, it is characterised in that the work runner
Installation endoporus be shoulder hole, including macropore and aperture, the rolling bearing are arranged in macropore, be additionally provided with the macropore every
Set, wherein, a side end face of spacer axial direction contacts the ladder that rolling bearing is against to work runner installation endoporus with rolling bearing
On face, another side end face of spacer axial direction is located at the end face side of the work runner, and external cylindrical surface and the macropore of spacer coordinate,
The external cylindrical surface of the inner ring of spacer and one of sliding bearing coordinates, the external cylindrical surface of the aperture and another sliding bearing
Coordinate.
5. the combination unit of rolling bearing according to claim 4 and sliding bearing, it is characterised in that the rolling bearing
The centre of the installation endoporus of work runner is arranged on, the sliding bearing is symmetrically disposed in the both ends of rolling bearing.
6. the combination unit of rolling bearing according to claim 5 and sliding bearing, it is characterised in that the spacer it is interior
Enclose as shoulder hole, including first order shoulder hole and second level shoulder hole, wherein, first order shoulder hole is less than second level shoulder hole,
The external cylindrical surface of the first order shoulder hole and sliding bearing coordinates, the second level shoulder hole in the axial direction with the axis of rolling
The ball held connects with retainer, is connected in radial directions with the oil-out.
7. the combination unit of rolling bearing according to claim 6 and sliding bearing, it is characterised in that on the oil inlet
Provided with inlet nozzle.
8. the combination unit of rolling bearing according to claim 4 and sliding bearing, it is characterised in that the sliding bearing
Outer end be provided with locating ring, the locating ring of one of sliding bearing be bonded with an end face of the runner that works, and another is slided
The locating ring of bearing is bonded with the end face of the spacer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721070802.5U CN207111704U (en) | 2017-08-24 | 2017-08-24 | A kind of combination unit of rolling bearing and sliding bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721070802.5U CN207111704U (en) | 2017-08-24 | 2017-08-24 | A kind of combination unit of rolling bearing and sliding bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207111704U true CN207111704U (en) | 2018-03-16 |
Family
ID=61577650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721070802.5U Expired - Fee Related CN207111704U (en) | 2017-08-24 | 2017-08-24 | A kind of combination unit of rolling bearing and sliding bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207111704U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109365143A (en) * | 2018-11-20 | 2019-02-22 | 中国工程物理研究院总体工程研究所 | A kind of high speed geotechnical centrifuge structure |
| CN113915239A (en) * | 2021-09-30 | 2022-01-11 | 大连理工大学 | Anti-large-impact composite structure bearing with sliding and rolling bearing coupling design |
-
2017
- 2017-08-24 CN CN201721070802.5U patent/CN207111704U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109365143A (en) * | 2018-11-20 | 2019-02-22 | 中国工程物理研究院总体工程研究所 | A kind of high speed geotechnical centrifuge structure |
| CN113915239A (en) * | 2021-09-30 | 2022-01-11 | 大连理工大学 | Anti-large-impact composite structure bearing with sliding and rolling bearing coupling design |
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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: 20180316 Termination date: 20190824 |