CN102400999A - Bearing bush of engine crank link mechanism - Google Patents
Bearing bush of engine crank link mechanism Download PDFInfo
- Publication number
- CN102400999A CN102400999A CN2010102831232A CN201010283123A CN102400999A CN 102400999 A CN102400999 A CN 102400999A CN 2010102831232 A CN2010102831232 A CN 2010102831232A CN 201010283123 A CN201010283123 A CN 201010283123A CN 102400999 A CN102400999 A CN 102400999A
- Authority
- CN
- China
- Prior art keywords
- ripple
- bearing bush
- bearing shell
- link mechanism
- crank link
- 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
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention relates to a bearing bush of an engine crank link mechanism, characterized in that: the friction surface of the bearing bush is provided with tiny ripple structures which have the function of oil storage, the width a of each ripple groove is 0.2-0.3 mm, the depth b of each ripple groove is 0.0015-0.0035 mm, and the direction of length of the ripple groove is consistent with the direction of rotation of the bearing bush. According to the invention, the tiny ripple structures are added on the direction of rotation of the friction surface of the bearing bush, and the ripple grooves have the function of oil storage, thus the invention is beneficial to form stable an oil film between a crankshaft and the bearing bush; the oil film is not easy to crack, thus the dry friction of friction pieces can be prevented. The bearing bush has excellent sintering resistance, and smooth operation of the crank link mechanism is guaranteed.
Description
Technical field
The invention belongs to technical field of automobile engine, be specially the bearing shell of crank-connecting rod mechanism for engine.
Background technique
The bearing shell of crank-connecting rod mechanism for engine mainly comprises main axle bush and connecting rod bearing shell, plays sliding bearing.Because of its reliable operation, running is tranquil, use is easy to maintenance, cost is low, be widely used in the high speed internal-combustion engine.Because the motor applying working condition often changes; Starting and parking are frequent, and so-called boundary friction takes place easily, and at this moment two rubbing surfaces rely on intermolecular gravitation; The lube layer that adsorbs one deck few molecules thick separately, metal surface are separated by this one deck border oil film fully.Common bearing shell is not done special oil storage design on its rubbing surface, when high load, oil film ratio in border is easier to break, and causes metal to produce dry friction, causes strong wear, even surface melting, mutually seizure together, this is the root that bearing shell damages.
Summary of the invention
The bearing shell structure that the present invention is directed to present crank-connecting rod mechanism for engine exists the oil film between bearing shell to break easily, can not form stable oil film problem, and a kind of bearing shell of crank-connecting rod mechanism for engine of new structure is provided.
Technological scheme of the present invention is following:
A kind of bearing shell of crank-connecting rod mechanism for engine has had the small ripple struction of oil storage function, the recess width a=0.2 of said ripple～0.3mm, the degree of depth b=0.0015 of the groove of ripple～0.0035mm on the rubbing surface of bearing shell; The length direction of the groove of said ripple is consistent with the sense of rotation of bearing shell.
This structure passes through on the sense of rotation of the rubbing surface of bearing shell, to increase small ripple; Because the groove of ripple has the function of oil storage; Help between bent axle and bearing shell, forming stable oil film, oil film is not easy to break, and prevents that friction member from producing dry friction; Thereby bearing shell has outstanding anti-sintering characteristic, guaranteed the smooth and easy operation of connecting rod.
Description of drawings
Fig. 1 is the schematic representation of bearing shell.
Fig. 2 is the longitudinal profile schematic representation of bearing shell.
The amplification assumption diagram of the small ripple of Fig. 3.
Embodiment
As depicted in figs. 1 and 2, on the rubbing surface of bearing shell, increase atomic little ripple 1 along sense of rotation (arrow direction among Fig. 1).The size of small ripple is as shown in Figure 3, and the recess width a value of ripple is generally got 0.2～0.3mm, and degree of depth b value is generally got 0.0015～0.0035mm.Through increasing small corrugated surface structure, make bearing shell can form stable oil film, prevent that friction member from producing dry friction, makes bearing shell that outstanding anti-sintering characteristic arranged.
Claims (1)
1. the bearing shell of a crank-connecting rod mechanism for engine is characterized in that: on the rubbing surface of bearing shell, had the small ripple (1) of oil storage function, the recess width a=0.2 of said ripple～0.3mm, the degree of depth b=0.0015 of the groove of ripple～0.0035mm; The length direction of the groove of said ripple is consistent with the sense of rotation of bearing shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102831232A CN102400999A (en) | 2010-09-16 | 2010-09-16 | Bearing bush of engine crank link mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102831232A CN102400999A (en) | 2010-09-16 | 2010-09-16 | Bearing bush of engine crank link mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102400999A true CN102400999A (en) | 2012-04-04 |
Family
ID=45883525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102831232A Pending CN102400999A (en) | 2010-09-16 | 2010-09-16 | Bearing bush of engine crank link mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102400999A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458399A (en) * | 2019-01-11 | 2019-03-12 | 哈尔滨工程大学 | A kind of circumferential change wall thickness bearing shell |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2583430Y (en) * | 2002-11-18 | 2003-10-29 | 木俭朴 | Corrugated bush |
| CN2644760Y (en) * | 2003-04-22 | 2004-09-29 | 刘会学 | Brass |
| CN2692409Y (en) * | 2003-04-22 | 2005-04-13 | 刘会学 | Shaft bushing |
| JP2005331104A (en) * | 2004-04-22 | 2005-12-02 | Thk Co Ltd | Bearing bush and composite motion device using this bearing bush |
-
2010
- 2010-09-16 CN CN2010102831232A patent/CN102400999A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2583430Y (en) * | 2002-11-18 | 2003-10-29 | 木俭朴 | Corrugated bush |
| CN2644760Y (en) * | 2003-04-22 | 2004-09-29 | 刘会学 | Brass |
| CN2692409Y (en) * | 2003-04-22 | 2005-04-13 | 刘会学 | Shaft bushing |
| JP2005331104A (en) * | 2004-04-22 | 2005-12-02 | Thk Co Ltd | Bearing bush and composite motion device using this bearing bush |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458399A (en) * | 2019-01-11 | 2019-03-12 | 哈尔滨工程大学 | A kind of circumferential change wall thickness bearing shell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120404 |