CN206860665U - A kind of bearing shell for the cracking connecting rod that rises - Google Patents
A kind of bearing shell for the cracking connecting rod that rises Download PDFInfo
- Publication number
- CN206860665U CN206860665U CN201720582487.8U CN201720582487U CN206860665U CN 206860665 U CN206860665 U CN 206860665U CN 201720582487 U CN201720582487 U CN 201720582487U CN 206860665 U CN206860665 U CN 206860665U
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- Prior art keywords
- bearing shell
- connecting rod
- bearing
- section
- groove
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Abstract
The utility model discloses a kind of bearing shell for the cracking connecting rod that rises, a kind of bearing shell for the cracking connecting rod that rises is included in the top bearing shell and lower bearing separated at radius, circumferentially distributed finishing bathtray is provided with the middle part of the top bearing shell, middle part in the axial direction of the lower bearing is circumferentially arranged two section oil grooves, two described section of oil grooves extend through two circumferential end faces of lower bearing, and the finishing bathtray connects with section oil groove；And the open surface area of section oil groove is more than the open surface area of finishing bathtray；The filling oilhole of bottom land is provided through in described section of oil groove, while there is good bearing shell bearing capacity and oil slick's pervasion forming ability, improves the performance and service life of bearing shell.
Description
Technical field
It the utility model is related to a kind of rotate and lubricate accessory, more particularly to a kind of bearing shell for the cracking connecting rod that rises.
Background technology
Bearing shell is the internal combustion engines such as diesel engine, gasoline engine and the key fitment of engineering machinery class, while is also used for compressor, note
The accessory of the Engineering movable machinery such as water pump, and main quick-wear part, with Hyundai Motor, communications and transportation, agricultural machinery
With the development of engineering machinery, the demand of its engineering machinery is in rising trend, more and more extensive to the application technology of bearing shell.
The Chinese patent that Authorization Notice No. is CN205937442U discloses a kind of use for diesel engine and risen cracking connecting rod bearing shell, including
Covered on gonnecting rod body and connecting rod, gonnecting rod body is solidly connected and formed crank pin end pore with being covered tightly on connecting rod, is fixed with crank pin end pore
Bearing shell body, bearing shell body include connecting rod on watt and connecting rod lower half bearing, an oilhole are provided with lower watt.
Connecting rod, because of the forms of motion of its swing, typically or can typically be set oily when driving in the state swung
Case, and fuel feed hole is opened up on major part wall surface of the hole, fuel tank can be passed through during its cycle movement, is filled with this into bearing shell
Oil；Lack oil-bearing structure but it is only with oilhole oil-feed, in it, fluid insufficient supply sometimes occurs, bearing shell is with being located in
The oil film between rotating shaft in bearing shell does not plan a successor；So as to cause the situation of dry friction to occur.
Utility model content
The purpose of this utility model is to provide a kind of bearing shell for the cracking connecting rod that rises, and has reached fluid between bearing shell and rotating shaft
It is in liberal supply, the good effect of oil film continuity.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of bearing shell for the cracking connecting rod that rises, it is included in the top bearing shell and lower bearing separated at radius, the top bearing shell
Middle part is provided with circumferentially distributed finishing bathtray, and the middle part in the axial direction of the lower bearing is circumferentially arranged two section oil grooves,
Two described section of oil grooves extend through two circumferential end faces of lower bearing, and the finishing bathtray connects with section oil groove；And section oil groove
Open surface area is more than the open surface area of finishing bathtray；The filling oilhole of bottom land is provided through in described section of oil groove.
Using such scheme, when work, connecting rod passes through fuel tank, and the fluid in fuel tank passes through the hole on connecting rod and axle
Watt filling oilhole approach section oil groove in, and finishing bathtray is full of therewith in this process to the section oil groove of opposite side, so as to upper
The both ends of bearing shell and lower bearing all store fluid, and are located in rotating shaft therein in this process and phase persistently occurs with bearing shell
To rotating, fluid is circumferentially quickly diffused to whole inner ring by drive with axial direction；And no matter rotating shaft is rotating forward or reversion,
Lasting formation oil film can be stablized between inner ring and rotating shaft；In addition, the oil circuit section opposite segment oil groove of finishing bathtray is smaller, in oil
Liquid can be transferred to the section oil groove of opposite side with higher speed when pouring into.
More preferably：The inwall of the filling oilhole is vertical in the end face of lower bearing.
Using such scheme, vertical inwall cause fill the easier punch forming of oilhole, be easy to process, and be molded it
The arcuation inwall of filling oilhole afterwards can have certain angle with the RADIAL of bearing shell where it；Namely when oil-feed,
Filling the inwall of oilhole can form forward in the guiding function in the direction of rotation, so as to strengthen the guiding of fluid and diffusion.
More preferably：Described section of oil groove is divided into elongated slot and short groove according to the length of circumference, the both ends of the short groove with
The center of circle forms angle and is less than 30 °, and the angle that the both ends of the elongated slot are formed with the center of circle is 60 ° ~ 90 °.
Using such scheme, when main shaft rotates in the direction along short groove to elongated slot, main pressure-bearing surface short groove with
Between elongated slot, that is, with 60 ° for starting point of the lower bearing end face where short groove ~ 90 ° of regions；When main shaft rotates,
Fluid in short groove, which can be oppressed, drives the circumferential direction to elongated slot to spread, and elongated slot is in natural diffuseness state, last short groove
Connected with the diffusion fluid of elongated slot, so as to form the oil film of stable continuity；When reversion, because pressure-bearing surface is in elongated slot
Region, fluid diffusion are relatively easy to, and easier form stable oil film.
More preferably：The filling oilhole is arranged in elongated slot.
Using such scheme, storage capacity is larger, and the resistance of oil-feed is small, and fluid is easily formed from long after elongated slot is entered
Groove to short groove flowing.
More preferably：The groove depth of two described section of oil grooves is port where the circumferential end faces from bearing shell to another
End gradually decreases.
Using such scheme, the gap of the bottom land and rotating shaft of groove depth reduction i.e. section oil groove is reduced, and is being filled with lubrication
When oily, as gradually decreasing for gap is each to oppressing and can gradually increase to having for fluid, what it is in close end is being position meeting
Great diffusion pressure is produced, promotes fluid to spread vertically；And this groove gradually decreased is to give fluid flowing to lead
To being easier to enter gap between bearing shell and rotating shaft being driven by rotating shaft, preferably form oil film or provided for oil film and disappear
Consumption compensation.
More preferably：The side wall of described section of oil groove with bottom land is angled is obliquely installed, and two of section oil groove
The opening of side wall composition gradually increases.
Using such scheme, the section oil groove side wall being obliquely installed optimizes fluid and spreads composition in the axial direction of bearing shell,
So that fluid can be stored between main shaft and the side wall of section oil groove vertically after oilhole approach section oil groove is filled, and
The axial direction conveying of oil film is produced during main axis or play.
More preferably：The angle of the side wall of described section of oil groove is 60 °.
Using such scheme, the angle of increase section oil groove side wall can increase diffusion effect of the fluid in bearing shell axial direction, and
The openings of sizes of section oil groove is also increased while the angle of section oil groove side wall is increased, that is to say, that the abutting of main shaft and bearing shell
Area can be reduced accordingly, and bearing shell can also decline to the supporting effect of main shaft, and difficulty of processing can also increase；In side wall angle
For 60 ° when can all obtain preferable value to the condition of above-mentioned three.
More preferably：The pin-and-hole being provided with for being connected with connecting rod, institute are extended radially through on the inwall of the bearing shell
State pin-and-hole radially dimidiation and respectively positioned at the end of top bearing shell and lower bearing；The pin-and-hole is arranged at intervals with section oil groove.
Using such scheme, compared to traditional retention Hp fixed form, it is necessary to be set on the inwall of connection connecting rod
The bearing pin of radial direction；Without the grooving on the inwall of connecting rod, the destruction to the structural strength of connecting rod is avoided, the structure of the connecting rod made
Intensity is higher, and the manufacture of bearing shell pin-and-hole is also more prone to, and replacement cost is lower.
More preferably：The pin-and-hole is located at the end where the short groove of lower bearing.
Using such scheme, the completion of one end of short groove to groove face destroys smaller, and structural strength is higher；And this bearing shell exists
During rotating shaft for carrying big torque, main rotation direction is one end from one end of short groove to elongated slot, what bearing shell was driven
When pin-and-hole stress surface essentially consist in the side of top bearing shell；The stress of lower bearing can be reduced with this, optimizes the stress of bearing shell,
Improve the overall service life of bearing shell.
In summary, the utility model has the advantages that：
Consider the bearing capacity and oil slick's pervasion forming ability of bearing shell；Using the different section oil groove of two length under
The non-principal load area of bearing shell provides fluid and prestored；So that being more easy to drive when axis of rotation in bearing shell forms oil film, no
It is also easy to produce dry friction.
Brief description of the drawings
Fig. 1 is the bearing shell of embodiment 1 and the overall structure figure of connecting rod；
Fig. 2 is the structure chart of the top bearing shell of embodiment 1；
Fig. 3 is the section oil groove of embodiment 1 and the structural representation of oil groove last week；
Fig. 4 is the structure chart of the top bearing shell of embodiment 1；
Fig. 5 is the structure chart at the lower bearing from top to bottom visual angle of embodiment 1；
Fig. 6 is enlarged drawings of the Fig. 1 of embodiment 1 at A.
In figure, 1, lower bearing；2nd, top bearing shell；3rd, pin-and-hole；4th, finishing bathtray；5th, oilhole；6th, section oil groove；7th, connecting rod；61st, it is long
Groove；62nd, short groove；71st, bearing pin.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in the scope of protection of the utility model by Patent Law.
Embodiment 1：A kind of bearing shell for the cracking connecting rod that rises, as shown in figure 1, including top bearing shell 2 and lower bearing 1, both of which
For semicircle, abutted when installation with end face and form a complete bearing shell full circle, for wearing main shaft.
Reference picture 2 and Fig. 3, the middle part of top bearing shell 2 are provided with circumferentially distributed finishing bathtray 4, two side walls of finishing bathtray 4
Angle be 60 °, and the opening of the side wall composition of two finishing bathtray 4 gradually increases, and strengthens the axle along bearing shell of lubricating oil with this
To diffusion effect.
Reference picture 4 and Fig. 5, the axial middle part of lower bearing 1 is circumferentially arranged two section oil grooves 6, two of section oil groove 6
The angle of side wall is also 60 °；When top bearing shell 2 and lower bearing 1 dock, finishing bathtray 4 docks with section oil groove 6, but section oil groove 6
Open surface area be more than finishing bathtray 4 open surface area.In addition, the groove depth of two section oil grooves 6 is the circumferential end from bearing shell
Port to the other end where face gradually decreases；To increase oil pressure, strengthen diffusion.
Section oil groove 6 is divided into elongated slot 61 and short groove 62 according to the length of circumference, and the both ends of short groove 62 and center of circle formation angle are small
In 30 °, the angle that the both ends of elongated slot 61 are formed with the center of circle is 60 ° ~ 90 °.The filling oilhole 5 of bottom land is provided through in elongated slot 61,
The inwall for filling oilhole 5 is vertical in the end face of lower bearing 1.
When work, connecting rod 7 passes through fuel tank, and the fluid in fuel tank passes through the hole on connecting rod 7 and the filling oilhole 5 of bearing shell
In approach section oil groove 6, and finishing bathtray 4 is full of therewith in this process to the section oil groove 6 of opposite side, so as in the He of top bearing shell 2
The both ends of lower bearing 1 all store fluid, and are located in rotating shaft therein in this process and relative turn persistently occurs with bearing shell
Dynamic, fluid is circumferentially quickly diffused to whole inner ring by drive with axial direction；And no matter rotating shaft is rotating forward or reversion, in inner ring
Lasting formation oil film can be stablized between rotating shaft；In addition, the oil circuit section opposite segment oil groove 6 of finishing bathtray 4 is smaller, in fluid
The section oil groove 6 of opposite side can be transferred to when pouring into higher speed.
During this has, main shaft is in the direction single direction rotation along short groove 62 to elongated slot 61, and main pressure-bearing surface is short
Between groove 62 and elongated slot 61, that is, 60 ° for starting point ~ 90 ° of regions with the end face of lower bearing 1 where short groove 62；In main shaft
When rotation, the fluid in short groove 62 can equally produce the diffusion of axial and circumferential, with this, in 10`30 ° of main shaft and lower bearing
Between form oil film, and oil film is continued into circumferential diffusion with main axis, and after the part of elongated slot 61 is by being diffused in main shaft
Half section of formation oil film；So as in the case where keeping the situation of bearing capacity so that entirely can be remained between lower bearing 1 and main shaft
There is oil film, avoid lower bearing 1 produces the situation of dry friction in the second half section fluid deficiency of rotation.
Reference picture 1 and Fig. 6, extend radially through on the inwall of the side of short groove 62 of lower bearing 1 be provided with for connecting rod 7
The pin-and-hole 3 of 71 spacing connection of bearing pin, the radially dimidiation and respectively positioned at the end of top bearing shell 2 and lower bearing 1 of pin-and-hole 3；Pin
Hole 3 is arranged at intervals with section oil groove 6.
Claims (9)
1. a kind of bearing shell for the cracking connecting rod that rises, it is included in the top bearing shell (2) and lower bearing (1) separated at radius, the upper axle
Circumferentially distributed finishing bathtray (4) is provided with the middle part of watt (2), it is characterized in that：Middle part edge in the axial direction of the lower bearing (1)
Two section oil grooves (6) are circumferentially provided with, two described section of oil grooves (6) extend through two circumferential end faces of lower bearing (1), described
Finishing bathtray (4) connects with section oil groove (6)；And the open surface area of section oil groove (6) is more than the open surface area of finishing bathtray (4)；Institute
State the filling oilhole (5) that bottom land is provided through in a section oil groove (6).
2. a kind of bearing shell for the cracking connecting rod that rises according to claim 1, it is characterized in that：The inwall for filling oilhole (5)
It is vertical in the end face of lower bearing (1).
3. a kind of bearing shell for the cracking connecting rod that rises according to claim 1, it is characterized in that：Described section of oil groove (6) is according to week
To length be divided into elongated slot (61) and short groove (62), both ends and the center of circle of the short groove (62) form angle and are less than 30 °, the length
The angle that the both ends of groove (61) are formed with the center of circle is 60 ° ~ 90 °.
4. a kind of bearing shell for the cracking connecting rod that rises according to claim 3, it is characterized in that：The filling oilhole (5) is arranged on
In elongated slot (61).
5. a kind of bearing shell for the cracking connecting rod that rises according to claim 3, it is characterized in that：Two described section of oil grooves (6)
Groove depth is that port to the other end where the circumferential end faces from bearing shell gradually decreases.
6. a kind of bearing shell for the cracking connecting rod that rises according to claim 1, it is characterized in that：The side wall of described section of oil groove (6)
With bottom land is angled is obliquely installed, and the opening of two side walls composition of section oil groove (6) gradually increases.
7. a kind of bearing shell for the cracking connecting rod that rises according to claim 5, it is characterized in that：The side wall of described section of oil groove (6)
Angle be 60 °.
8. a kind of bearing shell for the cracking connecting rod that rises according to claim 3, it is characterized in that：Along footpath on the inwall of the bearing shell
To be provided through be used for and the bearing pin in connecting rod (7)（71）The pin-and-hole (3) of connection, the pin-and-hole (3) radially dimidiation
And respectively positioned at the end of top bearing shell (2) and lower bearing (1)；The pin-and-hole (3) is arranged at intervals with section oil groove (6).
9. a kind of bearing shell for the cracking connecting rod that rises according to claim 8, it is characterized in that：The pin-and-hole (3) is located at lower axle
End where the short groove (62) of watt (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720582487.8U CN206860665U (en) | 2017-05-23 | 2017-05-23 | A kind of bearing shell for the cracking connecting rod that rises |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720582487.8U CN206860665U (en) | 2017-05-23 | 2017-05-23 | A kind of bearing shell for the cracking connecting rod that rises |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206860665U true CN206860665U (en) | 2018-01-09 |
Family
ID=60824795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720582487.8U Expired - Fee Related CN206860665U (en) | 2017-05-23 | 2017-05-23 | A kind of bearing shell for the cracking connecting rod that rises |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206860665U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285143A (en) * | 2019-06-28 | 2019-09-27 | 潍柴动力股份有限公司 | A kind of main brasses and mounting structure |
| CN112049857A (en) * | 2020-09-04 | 2020-12-08 | 宁波市富川机械有限公司 | Transmission connecting rod structure |
-
2017
- 2017-05-23 CN CN201720582487.8U patent/CN206860665U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285143A (en) * | 2019-06-28 | 2019-09-27 | 潍柴动力股份有限公司 | A kind of main brasses and mounting structure |
| CN110285143B (en) * | 2019-06-28 | 2021-04-16 | 潍柴动力股份有限公司 | Main bearing bush and mounting structure |
| CN112049857A (en) * | 2020-09-04 | 2020-12-08 | 宁波市富川机械有限公司 | Transmission connecting rod structure |
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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 |
Granted publication date: 20180109 Termination date: 20200523 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |