CN204113876U - Connecting rod bearing - Google Patents
Connecting rod bearing Download PDFInfo
- Publication number
- CN204113876U CN204113876U CN201420494001.1U CN201420494001U CN204113876U CN 204113876 U CN204113876 U CN 204113876U CN 201420494001 U CN201420494001 U CN 201420494001U CN 204113876 U CN204113876 U CN 204113876U
- Authority
- CN
- China
- Prior art keywords
- bearing shell
- connecting rod
- watt mouth
- spreader groove
- spreader
- 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.)
- Expired - Fee Related
Links
Abstract
Connecting rod bearing, comprise the bearing shell being buckled into full circle for a pair, described single bearing shell is semicircle, the end, two ends of bearing shell is called a watt mouth, during fastening, watt mouth at the two ends of two bearing shells docks in pairs, the joint of watt mouth docking has two, the inner side of two watts of mouths of one of them joint all offers the spreader groove of inclination along bearing shell axial direction, the axial direction of bearing shell is provided with spacing between the two ends of spreader groove and the two ends of watt mouth, the width of spreader groove is less than the width of watt mouth, and the spreader groove degree of depth is radially less than the thickness of watt mouth.Machine oil being more evenly distributed on rod journal, improves lubricating coefficient, reduces expansion coefficient.
Description
Technical field
The utility model relates to a kind of bearing.
Background technique
The outside of bent axle is connecting rod bearing, and bent axle does rotation motion in connecting rod bearing, and connecting rod bearing comprises a pair bearing shell, and the two ends up and down of two pieces of bearing shells snap together formation full circle.But often find when keeping in repair, the rod journal of bent axle is often pulled, bearing shell is pulled into the groove of a lot of by the metal granule inside machine oil, under the state of working long hours, rod journal has been worn into a lot of protruding, this just causes joint constantly to diminish, insufficient lubrication, so connecting rod bearing just produces noise, cisco unity malfunction.Just engine stripping must be got off during maintenance, take off bent axle, then grind bent axle etc., overhaul once, the manpower of at substantial, financial resources.
The existing mode circumferentially offering oil groove on bearing shell, destroys the bulk strength of bearing shell, easily be partially formed stress concentrate, bearing shell easily damages.
Model utility content
The purpose of this utility model is to provide a kind of connecting rod bearing, makes the distribution of oil on axle journal more even, and holds little chip.
The technical solution of the utility model is:
Connecting rod bearing, comprise the bearing shell being buckled into full circle for a pair, described single bearing shell is semicircle, the end, two ends of bearing shell is called a watt mouth, during fastening, watt mouth at the two ends of two bearing shells docks in pairs, the joint of watt mouth docking has two, the inner side of two watts of mouths of one of them joint all offers the spreader groove of inclination along bearing shell axial direction, the axial direction of bearing shell is provided with spacing between the two ends of spreader groove and the two ends of watt mouth, the width of spreader groove is less than the width of watt mouth, and the spreader groove degree of depth is radially less than the thickness of watt mouth.
Two spreader grooves are symmetrical about the surface of contact of joint.
Described spreader groove is the skewed slot tilted, and the sectional shape of spreader groove is triangle.
The inner side of two joints all offers the skewed slot of inclination along bearing shell axial direction.
The tilt angle of skewed slot is 30-60 degree.
The tilt angle of skewed slot is 45 degree.
Skewed slot is 60 degree from watt mouth end face to the tilt angle of bearing shell inner side surface.
Skewed slot is 30 degree from watt mouth end face to the tilt angle of bearing shell inner side surface.
Described spreader groove is curve bath, and the sectional shape of spreader groove is the circular arc of indent.
Bearing shell is provided with oil inlet hole.
Advantage of the present utility model is as follows:
1, machine oil being more evenly distributed on rod journal, improves lubricating coefficient, reduces expansion coefficient;
2, the clearance requirement between bearing shell and bent axle can be become 0.02 ~ 0.04mm, and existing clearance requirement is 0.05-0.07mm, the utility model reduces gap greatly, makes bearing shell and bent axle joint become large;
3, the metal fillings inside machine oil oil pump pump come can be stored in spreader groove, unlike in the past bearing shell being pulled into groove, and increases the joint of connecting rod bearing shell and rod journal;
4, machine oil is by the nozzle opening on connecting rod, and the engine oil pressure of spray improves, and casing wall leans on this nozzle opening with the wrist pin of connecting rod small end, improves the lubricating coefficient of oil spout splash lubrication;
5, improve the machine life of motor.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation after two bearing shells separate;
Fig. 3 is the schematic diagram of one of them end, bearing shell upper end watt mouth.
Embodiment
As shown in Figure 1, 2, connecting rod bearing of the present utility model comprises the bearing shell being buckled into full circle for a pair, and single bearing shell is semicircle, and one of them bearing shell is provided with oil inlet hole 4.The end, two ends of bearing shell is called watt mouth 3.Watt mouth 3 that two bearing shells are respectively the first bearing shell 1 and second bearing shell 2, two upper and lower two ends of bearing shell docks in pairs.For second bearing shell 2 on right side, the joint of watt mouth docking is called joint 6 and lower joint 7, and the inner side of upper joint 6 two watts of mouths 3 all offers the spreader groove 5 of inclination along bearing shell axial direction.
As shown in Figure 3, the axial direction of the second bearing shell 2 is provided with spacing between the two ends of spreader groove 5 and the two ends of watt mouth 3, and the width of spreader groove 5 is less than the width of watt mouth 3, and spreader groove 5 is less than the thickness of watt mouth 3 in the docking degree of depth radially everywhere.
Two watts of mouths 3 can form a surface of contact at joint, and two spreader grooves 5 are symmetrical about the surface of contact of joint.
The sectional shape of two spreader grooves 5 has two kinds:
The first: spreader groove 5 is the skewed slot tilted, and the sectional shape of spreader groove 5 is triangle.
The inner side of upper joint 6 and lower joint 7 all offers the skewed slot of inclination along bearing shell 1 axial direction.Only a joint is offered spreader groove 5 and can be realized goal of the invention of the present utility model wherein, but two joints all adopt, and effect can be better.
The tilt angle of skewed slot is 45 degree, or 60 degree, 30 degree.This angle sets according to actual needs.
The second: spreader groove 5 is curve bath, the sectional shape of spreader groove 5 is the circular arc of indent.Such shape also can hold impurity well, adds and milling cutter can be used man-hour to process.
Claims (10)
1. connecting rod bearing, comprise the bearing shell being buckled into full circle for a pair, described single bearing shell is semicircle, the end, two ends of bearing shell is called a watt mouth, during fastening, watt mouth at the two ends of two bearing shells docks in pairs, the joint of watt mouth docking has two, it is characterized in that: the inner side of two watts of mouths of one of them joint all offers the spreader groove of inclination along bearing shell axial direction, the axial direction of bearing shell is provided with spacing between the two ends of spreader groove and the two ends of watt mouth, the width of spreader groove is less than the width of watt mouth, and the spreader groove degree of depth is radially less than the thickness of watt mouth.
2. connecting rod bearing according to claim 1, is characterized in that: two spreader grooves are symmetrical about the surface of contact of joint.
3. connecting rod bearing according to claim 1, is characterized in that: described spreader groove is the skewed slot tilted, and the sectional shape of spreader groove is triangle.
4. connecting rod bearing according to claim 3, is characterized in that: the tilt angle of skewed slot is 30-60 degree.
5. connecting rod bearing according to claim 4, is characterized in that: the tilt angle of skewed slot is 45 degree.
6. connecting rod bearing according to claim 4, is characterized in that: skewed slot is 60 degree from watt mouth end face to the tilt angle of bearing shell inner side surface.
7. connecting rod bearing according to claim 4, is characterized in that: skewed slot is 30 degree from watt mouth end face to the tilt angle of bearing shell inner side surface.
8. connecting rod bearing according to claim 1 and 2, is characterized in that: described spreader groove is curve bath, and the sectional shape of spreader groove is the circular arc of indent.
9. the connecting rod bearing according to claim 1-7 arbitrary, is characterized in that: the inner side of two joints all offers the skewed slot of inclination along bearing shell axial direction.
10. the connecting rod bearing according to claim 1-7 arbitrary, is characterized in that: bearing shell is provided with oil inlet hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420494001.1U CN204113876U (en) | 2014-08-29 | 2014-08-29 | Connecting rod bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420494001.1U CN204113876U (en) | 2014-08-29 | 2014-08-29 | Connecting rod bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204113876U true CN204113876U (en) | 2015-01-21 |
Family
ID=52331189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420494001.1U Expired - Fee Related CN204113876U (en) | 2014-08-29 | 2014-08-29 | Connecting rod bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204113876U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884872A (en) * | 2017-03-28 | 2017-06-23 | 青岛铠硕机械科技有限公司 | A kind of automatic plane saw pitman shaft |
-
2014
- 2014-08-29 CN CN201420494001.1U patent/CN204113876U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884872A (en) * | 2017-03-28 | 2017-06-23 | 青岛铠硕机械科技有限公司 | A kind of automatic plane saw pitman shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20160829 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |