CN205858940U - A kind of high accuracy connecting rod with superpower wear-resistant performance - Google Patents
A kind of high accuracy connecting rod with superpower wear-resistant performance Download PDFInfo
- Publication number
- CN205858940U CN205858940U CN201620765999.3U CN201620765999U CN205858940U CN 205858940 U CN205858940 U CN 205858940U CN 201620765999 U CN201620765999 U CN 201620765999U CN 205858940 U CN205858940 U CN 205858940U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- rod
- big end
- resistant performance
- high accuracy
- 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.)
- Ceased
Links
Abstract
This utility model patent discloses a kind of high accuracy connecting rod with superpower wear-resistant performance, belongs to compressor crank shaft interconnection technique field, the small end of connecting rod including the body of rod and being located at body of rod two ends and big end；Described small end of connecting rod and big end are the torus of hollow；Described small end of connecting rod internal sleeve is provided with needle roller bearing without inner ring；Described big end internal sleeve is provided with cylindrical bearing；The connecting portion of described big end and the body of rod is located at oil guiding hole；The both sides up and down of the body of rod are connected by described oil guiding hole tapered structure respectively with the inwall of big end；Described small end of connecting rod is provided with oilhole；The height of described small end of connecting rod is more than the height of big end.This utility model passes through needle roller bearing without inner ring and cylindrical bearing, and wearability is good, and bearing capacity is strong；Meanwhile, this utility model also has easy to maintenance, low cost, can independent support accuracy high, service life the feature such as length.
Description
Technical field
This utility model relates to compressor crank shaft interconnection technique field, and a kind of have the high-precision of superpower wear-resistant performance
Degree connecting rod.
Background technology
Air compressor is as being provided that the air source of pure air, at medical treatment, food, chemical industry etc. to air quality requirements
The industry having high request has market widely, and the compress mode of air compressor has multiple, wherein has a kind of piston type
Air compressor is to be moved back and forth in cylinder by crank rotation drivening rod piston to realize air compression, at piston type pneumatic
In compressor, connecting rod is one of its important component part.In air compressor machine, the effect of connecting rod is that the power born by piston passes to song
Axle, and make the reciprocating motion of piston be changed into the rotary motion of bent axle.Connecting rod is by gonnecting rod body, small end of connecting rod, big end etc. zero
Part forms, and small end of connecting rod is used for installing piston pin, to connect piston, and the major part of connecting rod and bent axle.
Connection connecting rod is as the vital part in machine driving, and its effect is that the gas load on piston is passed to song
Axle, is transformed into the reciprocating motion of piston the rotary motion of bent axle, therefore it is required that connecting rod should have sufficiently high fatigue strength and
Rigidity；Traditional bar linkage structure uses bearing bush structure, can produce bigger frictional force, the cleannes requirement to lubricating oil during operating
The highest, easily wear and tear, bearing capacity is little, and it is poor to there is non-exchange shortcoming, versatility and motility.Further, since even
Bar is main power transmission hinge, and therefore higher for its requirement on flexibility, owing to ceaselessly operating, temperature is higher, how to protect
The lubricant effect of card link joint feature position is good, becomes a vital problem, traditional bearing bush structure connecting rod, safeguards not
Convenient and relatively costly, once damage, it is necessary to more renew, relatively costly, service life is short.
Utility model content
The purpose of utility model: in order to overcome above deficiency, this utility model discloses a kind of has superpower wear-resistant performance
Connecting rod in high precision, by using needle roller bearing without inner ring collocation cylindrical bearing, replaces traditional bearing bush structure, drastically increases
The wearability of two sides and bearing capacity；And length in service life, easy care, low cost, precision are high.
Technical scheme: in order to realize object above, the utility model discloses and a kind of have the high-precision of superpower wear-resistant performance
Degree connecting rod, the small end of connecting rod including the body of rod and being located at body of rod two ends and big end；Described small end of connecting rod and big end are equal
Torus for hollow；Described small end of connecting rod internal sleeve is provided with needle roller bearing without inner ring；Described big end internal sleeve is provided with circle
Axis of a cylinder holds；The connecting portion of described big end and the body of rod is located at oil guiding hole；The tapered structure of described oil guiding hole, respectively by the body of rod
Both sides up and down connect with the inwall of big end；Described small end of connecting rod is provided with oilhole；The height of described small end of connecting rod is more than
The height of big end.
A kind of high accuracy connecting rod with superpower wear-resistant performance described in the utility model, its simple in construction, reasonable in design,
By the microcephaly of connecting rod uses needle roller bearing without inner ring, big end uses cylindrical bearing, replaces the bearing shell knot of conventional linkage
Structure, improves the wearability of connecting rod, and bearing capacity have also been obtained and increases substantially simultaneously, and service life is long, before comparing
Improving 100%, easy to maintenance, cost is relatively low；Needle roller bearing without inner ring the most described in the utility model and cylindrical bearing, permissible
Independent replacing, and precision is higher.The body of rod is provided with oil guiding hole simultaneously, it is possible to the profit of guarantee cylindrical bearing within big end
Slip, frictional force is little, is difficult to be worn, and service life is long, and oil guiding hole is inverted cone-shaped structure, can be real in the both sides up and down of the body of rod
Existing oil-feed blowdown, resistance tocrocking is good.
Further, a kind of high accuracy connecting rod with superpower wear-resistant performance described in the utility model, described connecting rod
Microcephaly and big end are integrally machined molding with the body of rod.Ensure overall structural strength, it is to avoid owing to being subject in rotation process
Under the effect of External shearing forces, fracture twisted phenomena occurs.
Further, a kind of high accuracy connecting rod with superpower wear-resistant performance described in the utility model, the described body of rod
Cross section in " work " font.By the reinforcement of " work " font both sides, improve the structural strength of the connecting rod body of rod further, it is ensured that
In service life, reduce and change or maintenance, cost-effective.
Further, a kind of high accuracy connecting rod with superpower wear-resistant performance described in the utility model, described connecting rod
The height of microcephaly is 33mm～37mm.
Further, a kind of high accuracy connecting rod with superpower wear-resistant performance described in the utility model, described connecting rod
The height of major part is 23mm～27mm.
From technique scheme it can be seen that a kind of high accuracy with superpower wear-resistant performance described in the utility model connects
Bar has the advantages that
A kind of high accuracy connecting rod with superpower wear-resistant performance described in the utility model, its simple in construction, reasonable in design,
By the microcephaly of connecting rod uses needle roller bearing without inner ring, big end uses cylindrical bearing, replaces the bearing shell knot of conventional linkage
Structure, improves the wearability of connecting rod, and bearing capacity have also been obtained and increases substantially simultaneously, and service life is long, before comparing
Improving 100%, easy to maintenance, cost is relatively low；Needle roller bearing without inner ring the most described in the utility model and cylindrical bearing, permissible
Independent replacing, and precision is higher.The body of rod is provided with oil guiding hole simultaneously, it is possible to the profit of guarantee cylindrical bearing within big end
Slip, frictional force is little, is difficult to be worn, and service life is long, and oil guiding hole is inverted cone-shaped structure, can be real in the both sides up and down of the body of rod
Existing oil-feed blowdown, resistance tocrocking is good.
Accompanying drawing explanation
Fig. 1 is the transversary section view of a kind of high accuracy connecting rod with superpower wear-resistant performance described in the utility model
Figure；
Fig. 2 is the body of rod sectional drawing of a kind of high accuracy connecting rod with superpower wear-resistant performance described in the utility model；
In figure: the 1-body of rod, 2-small end of connecting rod, 3-big end, 4-needle roller bearing without inner ring, 5-cylindrical bearing, 6-Oil Guide
Hole, 7-oilhole.
Detailed description of the invention
Below in conjunction with the accompanying drawings, being described in detail this utility model detailed description of the invention, the present embodiment is only limited to
Bright this utility model, does not limit scope of the present utility model.
Embodiment:
A kind of high accuracy connecting rod with superpower wear-resistant performance described in the utility model, as it is shown in figure 1, include: the body of rod 1
And it is integrally machined the small end of connecting rod 2 being located at the body of rod 1 two ends and the big end 3 of molding；As in figure 2 it is shown, the described body of rod 1
Cross section, in " work " font, by dies both sides reinforcement, is ensured the structural strength of the body of rod, improves by reinforcement
Stretch-proof performance；As it is shown in figure 1, described small end of connecting rod 2 and big end 3 are the torus of hollow；In described small end of connecting rod 2
Portion is arranged with needle roller bearing without inner ring 4；Described big end 3 internal sleeve is provided with cylindrical bearing 5；Independently can carry out bearing more
Change, improve its precision, maintain easily simultaneously and keep in repair；The connecting portion of described big end 3 and the body of rod 1 is located at oil guiding hole 6；Institute
State the tapered structure of oil guiding hole 6, respectively the both sides up and down of the body of rod are connected with the inwall of big end 3；On described small end of connecting rod 2
It is provided with oilhole；The height of described small end of connecting rod 2 is more than the height of big end 3.The side of described small end of connecting rod 2 is provided with oilhole 7,
Ensure the lubricant effect of needle roller bearing without inner ring 4.
Preferably, a kind of high accuracy connecting rod with superpower wear-resistant performance described in the utility model, described connecting rod is little
The height of 2 is 33mm～37mm.
Preferably, a kind of high accuracy connecting rod with superpower wear-resistant performance described in the utility model, described connecting rod is big
The height of 3 is 23mm～27mm.
The above is only preferred implementation of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of without departing from this utility model principle, it is also possible to make some improvement, these improvement also should be regarded as
Protection domain of the present utility model.
Claims (5)
1. a high accuracy connecting rod with superpower wear-resistant performance, it is characterised in that: including: the body of rod (1) and be located at the body of rod (1)
The small end of connecting rod (2) at two ends and big end (3)；Described small end of connecting rod (2) and big end (3) are the torus of hollow；
Described small end of connecting rod (2) internal sleeve is provided with needle roller bearing without inner ring (4)；Described big end (3) internal sleeve is provided with cylindrical bearing
(5)；The connecting portion of described big end (3) and the body of rod (1) is located at oil guiding hole (6)；Described oil guiding hole (6) tapered structure,
Respectively the inwall of the both sides up and down of the body of rod with big end (3) is connected；Described small end of connecting rod (2) is provided with oilhole；Described company
The height of bar microcephaly (2) is more than the height of big end (3).
A kind of high accuracy connecting rod with superpower wear-resistant performance the most according to claim 1, it is characterised in that: described connecting rod
Microcephaly (2) and big end (3) are integrally machined molding with the body of rod (1).
A kind of high accuracy connecting rod with superpower wear-resistant performance the most according to claim 1, it is characterised in that: the described body of rod
(1) cross section is in " work " font.
A kind of high accuracy connecting rod with superpower wear-resistant performance the most according to claim 1, it is characterised in that: described connecting rod
The height of microcephaly (2) is 33mm～37mm.
A kind of high accuracy connecting rod with superpower wear-resistant performance the most according to claim 1, it is characterised in that: described connecting rod
The height of major part (3) is 23mm～27mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620765999.3U CN205858940U (en) | 2016-07-18 | 2016-07-18 | A kind of high accuracy connecting rod with superpower wear-resistant performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620765999.3U CN205858940U (en) | 2016-07-18 | 2016-07-18 | A kind of high accuracy connecting rod with superpower wear-resistant performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205858940U true CN205858940U (en) | 2017-01-04 |
Family
ID=57647739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620765999.3U Ceased CN205858940U (en) | 2016-07-18 | 2016-07-18 | A kind of high accuracy connecting rod with superpower wear-resistant performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205858940U (en) |
-
2016
- 2016-07-18 CN CN201620765999.3U patent/CN205858940U/en not_active Ceased
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7610847B2 (en) | Pump crosshead and connecting rod assembly | |
| CN203641255U (en) | Structure of engine connecting rod small end | |
| CN201650663U (en) | Efficient oil-free piston compression device | |
| CN101122324B (en) | Multiple pivot crank device with combined type eccentric shaft structure crankshaft | |
| CN205858940U (en) | A kind of high accuracy connecting rod with superpower wear-resistant performance | |
| CN208252489U (en) | A kind of lubricating arrangement | |
| CN101122323B (en) | Multiple pivot crank device with combined type crank pin structure crankshaft | |
| CN103603863A (en) | Connecting rod small end structure of engine | |
| CN205578491U (en) | Track traffic is bent axle structure for oil -free air compressor | |
| US10094276B2 (en) | Multi-link piston-crank mechanism for internal combustion engine | |
| CN202280727U (en) | Connecting rod structure for automobile engine | |
| CN207673706U (en) | A kind of new work engine connector | |
| CN205446370U (en) | Connecting rod | |
| CN201078449Y (en) | Multi-fulcrum crank mechanism with crankshaft of combined eccentric centre wheel axis structure | |
| CN207454526U (en) | A kind of engine link | |
| CN201078448Y (en) | Multi-fulcrum crank mechanism with crankshaft of combined crank bearing pin structure | |
| WO2021088321A1 (en) | Three-cylinder three-support crankshaft for diaphragm pump, and processing process | |
| CN204403121U (en) | Air compressor connecting rod | |
| CN207111258U (en) | The attachment structure of piston rod | |
| CN208106700U (en) | A kind of air compressor machine compression mechanism | |
| CN204082480U (en) | Bar linkage structure and comprise the reciprocating type refrigeration compressor of this bar linkage structure | |
| CN107664154A (en) | A kind of engine link | |
| CN214092174U (en) | Middle-open type five-plunger reciprocating pump | |
| CN209262036U (en) | Nodular cast iron crankshaft for rotary compressor | |
| CN219345245U (en) | High-hardness wear-resistant crankshaft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| IW01 | Full invalidation of patent right | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20220130 Decision number of declaring invalidation: 53656 Granted publication date: 20170104 |