CN102297116A - Large die-forged connecting rod for compressors - Google Patents
Large die-forged connecting rod for compressors Download PDFInfo
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- CN102297116A CN102297116A CN2011102012993A CN201110201299A CN102297116A CN 102297116 A CN102297116 A CN 102297116A CN 2011102012993 A CN2011102012993 A CN 2011102012993A CN 201110201299 A CN201110201299 A CN 201110201299A CN 102297116 A CN102297116 A CN 102297116A
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- connecting rod
- rod
- die forging
- microcephaly
- major part
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention relates to a large die-forged connecting rod for compressors. The connecting rod comprises a rod body, a big head and a small head, the big head and the small head are arranged on both ends of the rod body, and the cross section of the rod body is shaped like an I. Compared with the prior art, the large die-forged connecting rod has the advantages of high strength, high fatigue resistance, high reliability, light weight and the like.
Description
Technical field
The present invention relates to a kind of compressor connecting rod, especially relate to a kind of compressor with large-scale die forging connecting rod.
Background technique
Connecting rod is to be one of the parts of the straight reciprocating motion of piston with the crankshaft rotating movement conversion in compressor operating.Connecting rod is converted to crankshaft rotating moment the thrust that acts on the piston.Its structure is divided into the body of rod, major part, microcephaly's three parts.Bearing the periodic shock power and the bending force of Compression and Expansion alternation on the connecting rod shank, itself produces very big reciprocal inertia force simultaneously.
Therefore the operating conditions of connecting rod on compressor is very harsh, should possess higher intensity, higher anti-fatigue performance and toughness, and higher anti-impact force, lighter quality, and require easy to process.Yet the connecting rod that adopts original smith forging to form can't guarantee that it forms size accurately, and blank allowance is big, and the connecting rod profile realizes that by machining process processing cost height, material are by mass excision, and the surface metal fiber is cut fracture.Reduced the anti-fatigue performance of connecting rod,, can only increase its overall dimensions in order to reach corresponding strength, increased connecting rod weight so again, make that producing inertial force when compressor operating increases, the nuisance vibration when having strengthened compressor operating significantly rises the wearing and tearing of moving element.And owing to bulkyly cause when installing very heavyly, stock utilization is low, processed complex.
The existing connecting rod body of rod is circular, and overall weight is big.Common open die forging connecting rod need carry out whole body machine cut processing after forging, to eliminate the decarburized layer that produces in the forging process, oxidation hole, crackle, surface imperfection such as folding, meet the requirements of geometric accuracy, by this cutting, the fibrous structure on connecting rod top layer is damaged, and intensity reduces significantly.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of intensity height, good, reliable, the lightweight compressor of fatigue resistance with large-scale die forging connecting rod in order to overcome the defective that above-mentioned prior art exists.
Purpose of the present invention can be achieved through the following technical solutions: a kind of compressor comprises the body of rod and is arranged on the major part and the microcephaly at body of rod two ends that with large-scale die forging connecting rod, this connecting rod it is characterized in that, the longitudinal section of the described body of rod is " worker " font.
The described body of rod is connected with microcephaly's camber line with major part, and the camber line respective radius is 51～445mm.
Laterally be provided with oval-shaped groove on the described body of rod upper and lower surface, make body of rod longitudinal section be " worker " font.
The axis place of described body of rod upper and lower surface makes centre, body of rod longitudinal section be wavy to outer lug.
The axis axle center of the described body of rod is hollow oil duct, and connects major part and microcephaly.
Described major part is rectangular-shaped, is provided with the crank mounting hole in the middle of it, and described microcephaly is global shape, is provided with the wrist pin mounting hole in the middle of it.
Described major part top is provided with handle, and the relative bi-side of described microcephaly are plane.
Described connecting rod is by the mould once-through, makes carrying out extrusion forging.
Compared with prior art, the present invention is instrument with ANSYS11, and the connecting rod force-bearing situation that is used for 100 tons of piston force compressors has been carried out three dimensional FEM simulation.And connecting rod forging three-dimensional solid modeling studied.At connecting rod integral and each typical section stressing conditions; By to the stress field of each typical section, the analysis of strain field, and to meet the size requirement of forging die, comprehensively draw the shaping law of each typical section of connecting rod part; Determined the each several part size of connecting rod, the body of rod " worker " font structure particularly, and shaft and major part, microcephaly's the transition that is connected, connecting rod integral weight is reduced, the connecting rod profile is machining no longer, adopted metal mold, made, under identical mechanical property requires, significantly reduced overall weight and volume in conjunction with the metal pressing method.
Description of drawings
Fig. 1 is the structural representation of connecting rod of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 1;
Fig. 4 is the side view of Fig. 1;
Fig. 5 is the body of rod longitudinal sectional view of the another kind of connecting rod of the present invention.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
Embodiment 1
Shown in Fig. 1～4, a kind of compressor is with large-scale die forging connecting rod, and this connecting rod comprises the body of rod 1, with major part 2 that is arranged on body of rod two ends and microcephaly 3, the described body of rod 1 is rectangular-shaped, laterally is provided with oval-shaped groove 11 on its upper and lower surface, make the body of rod 2 longitudinal sections be " worker " font, as shown in Figure 2.Major part 2 is rectangular-shaped, is provided with crank mounting hole 21 in the middle of it, and the major part top is provided with handle 22, and described microcephaly 3 is global shape, is provided with wrist pin mounting hole 31 in the middle of it, and the relative bi-side of microcephaly are plane.
The body of rod 1 is connected with microcephaly's 3 camber lines with major part 2, and the joint is smooth streamlined camber line, and the camber line respective radius is 51mm～445mm continuous transition, as Fig. 1, Fig. 2, shown in Figure 3.
Whole connecting rod is by the mould once-through, makes carrying out extrusion forging.Concrete technology may further comprise the steps:
A. blanking according to forging ratio in the sawing machine loading and unloading;
B. beating famine heats to 1100～1150 ℃ of open die forgings, preliminarily forming;
C. blocking is heated to 1100～1150 ℃, is shaped with the blocker blocking on Pressesforging;
The thick film scale that produces when d. high temperature heating and forging are removed in pickling;
E. the precision forging die forging forming is used in die forging on Pressesforging;
F. cut edge and on oil hydraulic press, touch the excision wing with side cut;
G. proofread and correct the correction type shape;
H. heat treatment quenching and tempering is handled, and improves mechanical property;
I. shot-peening scale removal and impurity;
J. whether material physics and chemistry test check connecting rod material mechanical property, metallographic structure be qualified;
K. magnetic particle testing material surface quality;
L. polishing finishing polishing periphery improves appearance quality.
As shown in Figure 5, the longitudinal section is the axis place of the body of rod 1 upper and lower surface of " worker " font to outer lug 12, is wavy in the middle of making body of rod longitudinal section, and the axis axle center of the body of rod is hollow oil duct 13, and connects major part and microcephaly.All the other are with embodiment 1.
Claims (8)
1. a compressor is with large-scale die forging connecting rod, and this connecting rod comprises the body of rod and be arranged on the major part and the microcephaly at body of rod two ends that it is characterized in that, the longitudinal section of the described body of rod is " worker " font.
2. a kind of compressor according to claim 1 is characterized in that with large-scale die forging connecting rod the described body of rod is connected with microcephaly's camber line with major part, and the camber line respective radius is 51～445mm.
3. a kind of compressor according to claim 1 is characterized in that with large-scale die forging connecting rod, laterally is provided with oval-shaped groove on the described body of rod upper and lower surface, makes body of rod longitudinal section be " worker " font.
4. a kind of compressor according to claim 3 is characterized in that with large-scale die forging connecting rod the axis place of described body of rod upper and lower surface makes centre, body of rod longitudinal section be wavy to outer lug.
According to claim 3 or 4 described a kind of compressors with large-scale die forging connecting rod, it is characterized in that the axis axle center of the described body of rod is hollow oil duct, and connect major part and microcephaly.
6. a kind of compressor according to claim 1 is characterized in that with large-scale die forging connecting rod described major part is rectangular-shaped, is provided with the crank mounting hole in the middle of it, and described microcephaly is global shape, is provided with the wrist pin mounting hole in the middle of it.
7. a kind of compressor according to claim 1 is characterized in that with large-scale die forging connecting rod described major part top is provided with handle, and the relative bi-side of described microcephaly are plane.
8. a kind of compressor according to claim 1 is characterized in that with large-scale die forging connecting rod described connecting rod is by the mould once-through, makes carrying out extrusion forging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102012993A CN102297116A (en) | 2011-07-18 | 2011-07-18 | Large die-forged connecting rod for compressors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102012993A CN102297116A (en) | 2011-07-18 | 2011-07-18 | Large die-forged connecting rod for compressors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102297116A true CN102297116A (en) | 2011-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102012993A Pending CN102297116A (en) | 2011-07-18 | 2011-07-18 | Large die-forged connecting rod for compressors |
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| CN (1) | CN102297116A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077383A (en) * | 2016-06-20 | 2016-11-09 | 安徽省瑞杰锻造有限责任公司 | A kind of mould Forging Technology of dumbbell class cheese forging |
| CN110193584A (en) * | 2019-06-12 | 2019-09-03 | 昆山众诚精密锻造有限公司 | A kind of grass trimmer crank blank forging technique |
| CN112963341A (en) * | 2021-02-03 | 2021-06-15 | 上海聚力源流体科技有限公司 | Connecting rod for pump and assembling method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201439796U (en) * | 2009-05-25 | 2010-04-21 | 浙江吉利汽车研究院有限公司 | Engine connecting rod with lubricant channel |
-
2011
- 2011-07-18 CN CN2011102012993A patent/CN102297116A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201439796U (en) * | 2009-05-25 | 2010-04-21 | 浙江吉利汽车研究院有限公司 | Engine connecting rod with lubricant channel |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077383A (en) * | 2016-06-20 | 2016-11-09 | 安徽省瑞杰锻造有限责任公司 | A kind of mould Forging Technology of dumbbell class cheese forging |
| CN110193584A (en) * | 2019-06-12 | 2019-09-03 | 昆山众诚精密锻造有限公司 | A kind of grass trimmer crank blank forging technique |
| CN112963341A (en) * | 2021-02-03 | 2021-06-15 | 上海聚力源流体科技有限公司 | Connecting rod for pump and assembling method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 200431 Shanghai Yangtze River West Road, Baoshan District, No. 815 Applicant after: Shanghai Dalong Machinery Factory Company Limited Address before: 200431 Shanghai Yangtze River West Road, Baoshan District, No. 815 Applicant before: Shanghai Electrical Compressor Pumps Co.,Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: SHANGHAI ELECTRIC COMPRESSOR PUMP CO., LTD. TO: SHANGHAI DALONG MACHINE WORKS CO., LTD. |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111228 |