CN207245772U - Turbocharger bearing body structure with overall ball bearing - Google Patents
Turbocharger bearing body structure with overall ball bearing Download PDFInfo
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- CN207245772U CN207245772U CN201720904138.3U CN201720904138U CN207245772U CN 207245772 U CN207245772 U CN 207245772U CN 201720904138 U CN201720904138 U CN 201720904138U CN 207245772 U CN207245772 U CN 207245772U
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- bearing body
- ball bearing
- positioning pin
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Abstract
Turbocharger bearing body structure with overall ball bearing, including bearing body, overall ball bearing, positioning pin and oil inlet bolt；Overall ball bearing is installed in the bearing hole of bearing body；Positioning pin upper end is installed in the pin hole A of bearing body, in the pin hole B of the overall ball bearing outer ring of lower end insertion, and the outer ring of overall ball bearing is fixedly connected with bearing body；Oil inlet bolt lower end is threaded in the internal thread hole of bearing body, and upper end is located at outside bearing body.The utility model has the advantage of only with single overall ball bearing in the endoporus of bearing body, compared to the existing structure using two floating bearings, this case structure is simpler, and assembling is more convenient.An annular shoe cream room is formed between the lower face of oil inlet bolt and the outer wall of positioning pin and the hole wall of stepped hole, solves the problems, such as that lubricating oil lags fuel feeding during engine start, avoids overall ball bearing from dry friction occur in initial rotation.
Description
Technical field
The bearing body structure of turbocharger is the utility model is related to, particularly a kind of turbine with overall ball bearing increases
Depressor bearing body structure.
Background technology
In recent years, using the turbocharger of ball bearing because superior mechanical efficiency and transient response ability are in middle float
The application of amount automobile engine is just being increasingly subject to attention both domestic and external, but since the rotating speed of turbocharger is high, general work
Rotating speed reaches as high as twenties0000 rpms up to ten tens of thousands of rpms, and the operating mode of ball bearing is severe, will to reliability
Ask comparison high.Therefore, how to extend the service life of ball bearing, reduce vibration of the ball bearing under high-speed rotation and make an uproar
Sound, is the emphasis of research in current industry.
The content of the invention
The purpose of the utility model is to overcome the deficiencies in the prior art, and a kind of turbine with overall ball bearing is provided and is increased
Depressor bearing body structure, its is simple in structure, and lubrication is abundant, good reliability.
The technical solution of the utility model is：Turbocharger bearing body structure with overall ball bearing, including bearing
Body, overall ball bearing, positioning pin and oil inlet bolt；
Axial bearing hole is equipped with bearing body, bearing body outer wall is equipped with the stepped hole of radial direction, and stepped hole is connected to axis
Bearing bore, stepped hole be internal thread hole close to one section of bearing body outer wall, and stepped hole is in one section of close bearing body bearing hole
Pin hole A；Fuel feed hole is equipped with bearing body, fuel feed hole one end open is fuel-displaced port, and another end opening is oil inlet port；
Overall ball bearing is installed in the bearing hole of bearing body, its outer ring is equipped with pin hole B and lubrication oil supply hole, and lubrication supplies
Oilhole is connected with the fuel-displaced port of bearing body fuel feed hole；
Asphalt channel is equipped with positioning pin, asphalt channel forms an oil inlet on the outer wall of positioning pin and one fuel-displaced
Mouthful；Positioning pin upper end is installed in the pin hole A of bearing body, in the pin hole B of the overall ball bearing outer ring of lower end insertion, and by Integral ball
The outer ring of bearing is fixedly connected with bearing body；
Oil inlet bolt lower end is threaded in the internal thread hole of bearing body, and upper end is located at outside bearing body, is equipped with it
The endoporus of its upper and lower end face is penetrated through, the lower end outlet of endoporus is connected with the oil inlet of positioning pin asphalt channel；Under oil inlet bolt
An annular shoe cream room, annular shoe cream room while and positioning pin are formed between the hole wall of the outer wall and stepped hole of end face and positioning pin
The oil outlet of asphalt channel is connected with the oil inlet port of bearing body fuel feed hole.
The further technical solution of the utility model is：Overall ball bearing includes outer ring, inner ring, Ceramic Balls rolling element, guarantor
Hold frame；Ceramic Balls rolling element has two row, it is separately mounted in two row retainers, and is positioned between inner ring and outer ring, and
It is located at the both ends of Integral ball bearing axial direction respectively.
Further technical solution is the utility model：The aperture at the most narrow place in lubrication oil supply hole of overall ball bearing is L,
The aperture of the fuel feed hole of bearing body is H, L：H=1：2-3.
The further technical solution of the utility model is：Set between the lower face of oil inlet bolt and the upper surface of positioning pin
Have the gap.
The utility model has the following advantages that compared with prior art：
1st, in the endoporus of bearing body only with single overall ball bearing, compared to the existing structure using two floating bearings,
This case structure is simpler, and assembling is more convenient.
2nd, an annular shoe cream room is formed between the lower face of oil inlet bolt and the outer wall of positioning pin and the hole wall of stepped hole,
Solve the problems, such as that lubricating oil lags fuel feeding during engine start, avoids overall ball bearing from dry friction occur in initial rotation.
3rd, the aperture at the most narrow place in lubrication oil supply hole is less than the aperture of fuel feed hole, which can make the oil that lubrication oil supply hole sprays
Liquid is in vaporific, can more fully lubricate overall ball bearing and take away heat, reduces the abrasion of overall ball bearing, extends its use
Service life.
4th, gap is equipped between the lower face of oil inlet bolt and the upper surface of positioning pin, gap is communicated with annular shoe cream room,
Asphalt channel even if in positioning pin, which blocks, is also unlikely to complete oil-break.
The utility model is further described below in conjunction with figure and embodiment.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the structure diagram of the utility model middle (center) bearing body；
Fig. 3 is the A portions enlarged drawing of Fig. 1；
Fig. 4 is the B portions enlarged drawing of Fig. 1.
Embodiment
Embodiment 1：
As shown in Figs 1-4, the turbocharger bearing body structure with overall ball bearing, including bearing body 1, Integral ball axis
Hold, positioning pin 3 and oil inlet bolt 4.
Axial bearing hole 11 is equipped with bearing body 1,1 outer wall of bearing body is equipped with the stepped hole of radial direction, stepped hole connection
To bearing hole 11, stepped hole be internal thread hole 121 close to one section of bearing body 1 outer wall, and stepped hole is in 1 bearing of close bearing body
One section of hole 11 is pin hole A122；Fuel feed hole 13 is equipped with bearing body 1,13 one end open of fuel feed hole is fuel-displaced port 131, another
End opening is oil inlet port 132.
Overall ball bearing is installed in the bearing hole 11 of bearing body 1.Overall ball bearing includes outer ring 21, inner ring 22, ceramics
Ball rolling element 23 and retainer 24, its outer ring 21 are equipped with pin hole B and lubrication oil supply hole 212, lubrication oil supply hole 212 and bearing body
The fuel-displaced port 131 of 1 fuel feed hole 13 connects, and Ceramic Balls rolling element 23 has two row, and two row Ceramic Balls rolling elements 23 are separately mounted to
In two row retainers 24, and it is positioned between inner ring 22 and outer ring 21, and is located at the two of Integral ball bearing axial direction respectively
End.
Asphalt channel 31 is equipped with positioning pin 3, asphalt channel 31 forms an oil inlet 311 on the outer wall of positioning pin 3
With an oil outlet 312；3 upper end of positioning pin is installed in the pin hole A122 of bearing body 1, the overall ball bearing outer ring 21 of lower end insertion
Pin hole B in, and the outer ring 21 of overall ball bearing is fixedly connected with bearing body 1.
4 lower end of oil inlet bolt is threaded in the internal thread hole 121 of bearing body 1, and upper end is located at outside bearing body 1, its
Interior to be equipped with the endoporus 41 for penetrating through its upper and lower end face, the lower end outlet of endoporus 41 and the oil inlet 311 of 3 asphalt channel 31 of positioning pin connect
It is logical；An annular shoe cream room 5, annular are formed between the lower face of oil inlet bolt 4 and the outer wall of positioning pin 3 and the hole wall of stepped hole
Shoe cream room 5 is connected with the oil inlet port 132 of 1 fuel feed hole 13 of oil outlet 312 and bearing body of 3 asphalt channel 31 of positioning pin at the same time.
It is preferred that the aperture at the most narrow place in the lubrication oil supply hole 212 of overall ball bearing is L, the aperture of the fuel feed hole 13 of bearing body 1
For H, L：H=1：2.5.
It is preferred that gap is equipped between the lower face of oil inlet bolt 4 and the upper surface of positioning pin 3.
Claims (4)
1. the turbocharger bearing body structure with overall ball bearing, it is characterized in that：Including bearing body (1), overall ball bearing,
Positioning pin (3) and oil inlet bolt (4)；
Axial bearing hole (11) is equipped with bearing body (1), bearing body (1) outer wall is equipped with the stepped hole of radial direction, and stepped hole connects
Pass to bearing hole (11), stepped hole is being internal thread hole (121) close to one section of bearing body (1) outer wall, and stepped hole is by paraxial
Hold body (1) bearing hole (11) one section is pin hole A (122)；Fuel feed hole (13), fuel feed hole (13) one end are equipped with bearing body (1)
It is oil inlet port (132) to be open as fuel-displaced port (131), another end opening；
Overall ball bearing is installed in the bearing hole (11) of bearing body (1), its outer ring (21) is equipped with pin hole B and lubrication oil supply hole
(212), lubrication oil supply hole (212) are connected with the fuel-displaced port (131) of bearing body (1) fuel feed hole (13)；
Asphalt channel (31) is equipped with positioning pin (3), asphalt channel (31) forms an oil inlet on the outer wall of positioning pin (3)
(311) and an oil outlet (312)；Positioning pin (3) upper end is installed in the pin hole A (122) of bearing body (1), and lower end insertion is whole
In the pin hole B of body ball bearing outer ring (21), and the outer ring (21) of overall ball bearing is fixedly connected with bearing body (1)；
Oil inlet bolt (4) lower end is threaded in the internal thread hole (121) of bearing body (1), and upper end is located at bearing body (1) outside
Portion, is equipped with the endoporus (41) for penetrating through its upper and lower end face, lower end outlet and positioning pin (3) asphalt channel (31) of endoporus (41) in it
Oil inlet (311) connection；Formed between the lower face of oil inlet bolt (4) and the outer wall of positioning pin (3) and the hole wall of stepped hole
One annular shoe cream room (5), annular shoe cream room (5) and meanwhile with the oil outlet (312) and bearing of positioning pin (3) asphalt channel (31)
Oil inlet port (132) connection of body (1) fuel feed hole (13).
2. the turbocharger bearing body structure as claimed in claim 1 with overall ball bearing, it is characterized in that：Integral ball axis
Contract and include outer ring (21), inner ring (22), Ceramic Balls rolling element (23) and retainer (24)；Ceramic Balls rolling element (23) has two row,
It is separately mounted in two row retainers (24), and is positioned between inner ring (22) and outer ring (21), and respectively positioned at overall
The both ends of ball bearing axial direction.
3. the turbocharger bearing body structure as claimed in claim 2 with overall ball bearing, it is characterized in that：Integral ball axis
The aperture at the most narrow place in lubrication oil supply hole (212) held is L, and the aperture of the fuel feed hole (13) of bearing body (1) is H, L：H=1：2-3.
4. the turbocharger bearing body structure with overall ball bearing as any one of claim 1-3, its feature
It is：Gap is equipped between the lower face of oil inlet bolt (4) and the upper surface of positioning pin (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720904138.3U CN207245772U (en) | 2017-07-25 | 2017-07-25 | Turbocharger bearing body structure with overall ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720904138.3U CN207245772U (en) | 2017-07-25 | 2017-07-25 | Turbocharger bearing body structure with overall ball bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207245772U true CN207245772U (en) | 2018-04-17 |
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ID=61876919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720904138.3U Active CN207245772U (en) | 2017-07-25 | 2017-07-25 | Turbocharger bearing body structure with overall ball bearing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524480A (en) * | 2017-07-25 | 2017-12-29 | 湖南天雁机械有限责任公司 | Turbocharger bearing body structure with overall ball bearing |
-
2017
- 2017-07-25 CN CN201720904138.3U patent/CN207245772U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524480A (en) * | 2017-07-25 | 2017-12-29 | 湖南天雁机械有限责任公司 | Turbocharger bearing body structure with overall ball bearing |
| CN107524480B (en) * | 2017-07-25 | 2024-04-19 | 湖南天雁机械有限责任公司 | Turbocharger bearing body structure with integral ball bearing |
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