CN204300263U - A kind of split type crankshaft & connecting little by load impacting - Google Patents
A kind of split type crankshaft & connecting little by load impacting Download PDFInfo
- Publication number
- CN204300263U CN204300263U CN201420672407.4U CN201420672407U CN204300263U CN 204300263 U CN204300263 U CN 204300263U CN 201420672407 U CN201420672407 U CN 201420672407U CN 204300263 U CN204300263 U CN 204300263U
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- Prior art keywords
- bent axle
- oil
- hole
- pin
- groove
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Abstract
The utility model relates to by the little split type crankshaft & connecting of load impacting, and comprise connecting rod and bent axle connecting box, the lower end of small end and piston rod is rotatably connected; Bent axle connecting cover comprises bent axle connection upper cover and is connected lower cover with the bent axle be positioned at below it, described bent axle connection upper cover is connected lower cover with bent axle and removably connects, one end that bent axle connects bottom lower cover extends obliquely, is formed and gets rid of oil clot, and bent axle connects lower cover and gets rid of oil clot and is structure as a whole; The inwall of small end groove, circumference has connecting rod oil storage tank, and two sidewalls of groove are also respectively equipped with oilhole, and one end of described oilhole is communicated with connecting rod oil storage tank, and the other end is communicated with the first pin-and-hole.To solve in prior art because complex structure, pressurized air demand are comparatively large, the problem such as the easy-rupturing caused by structural strength deficiency that connecting rod and piston rod integrally cause.
Description
Technical field
The utility model relates to motor Component, specifically refers to a kind of split type crankshaft & connecting little by load impacting.
Background technique
Crankshaft & connecting is the important arrangement components in crankcase structure, in the crankshaft & connecting of existing crankcase, what generally adopt is the structure that counterweight connects gear, the crankcase of this structure easily produces larger surface friction drag in crankcase runs up process, cause crankshaft-link rod to seize up, crankshaft-link rod frequently withstands shocks load greatly, makes crankshaft-link rod serious wear, cause the excessive temperature rise of crankshaft-link rod, occur that connecting rod breaks the phenomenon such as bar so that excessively heated axle.In addition, in bent axle working procedure, the lubrication connecting the piston rod pin of connecting rod and piston rod has material impact for the performance of overall engine, but in existing structure, the lubricating condition of piston rod pin is always poor, is difficult to satisfy the demand.In addition, because complex structure, pressurized air demand are comparatively large, connecting rod and piston rod one, and easily cause the problems such as the fracture of the not enough generation of structural strength.
Model utility content
For the problems referred to above that prior art exists, the purpose of this utility model is to provide a kind of piston rod and connecting rod split and the crankshaft & connecting of high lubricating effect.
For achieving the above object, the utility model adopts following technological scheme: a kind of split type crankshaft & connecting little by load impacting, comprise connecting rod and bent axle connecting cover, the upper end of described connecting rod has groove, two sidewalls of this groove has the first coaxial pin-and-hole respectively, the lower end of described piston rod is cylindrical structure, and the lower end of piston rod has the second pin-and-hole; The lower end of piston rod is arranged in described groove, and the outer surface of the lower end of piston rod and the internal surface of groove have gap; Also comprise connecting pin, this connecting pin successively through the first pin-and-hole on groove sidewall, the first pin-and-hole on the second pin-and-hole and another sidewall of groove, and connecting pin and the first pin-and-hole and the second pin-and-hole Spielpassung;
Described bent axle connecting cover comprises bent axle connection upper cover and is connected lower cover with the bent axle be positioned at below it, and described bent axle connection upper cover is connected lower cover with bent axle and removably connects;
Described bent axle connects upper cover and has semicircular first arc groove, and bent axle covers under connecting and has semicircular second arc groove, and described first arc groove and the second arc groove surround and form bent axle pin-and-hole, are provided with crankpin in this bent axle pin-and-hole;
In described first arc groove, top bearing shell is housed, in the second arc groove, lower bearing is housed, described top bearing shell and lower bearing are arranged in described bent axle pin-and-hole, and top bearing shell and lower bearing connect, and encircle the middle part at crankpin;
One end that described bent axle connects bottom lower cover extends obliquely, is formed and gets rid of oil clot, and bent axle connects lower cover and gets rid of oil clot and is structure as a whole; The inwall of described small end groove, circumference has connecting rod oil storage tank, and two sidewalls of groove are also respectively equipped with oilhole, and one end of described oilhole is communicated with connecting rod oil storage tank, and the other end is communicated with the first pin-and-hole.
The inwall of the first arc groove covered on bent axle connects has oil trap, and on this, oil trap is semi-circular shape, and is looped around the outer surface of top bearing shell, and top bearing shell has the first oil inlet hole, and the inner and outer surface of the through top bearing shell of the first oil inlet hole; Described bent axle connects upper cover and has shoe cream room, this shoe cream room near the first oil inlet hole, shoe cream room and upper oil sump; Cover on bent axle connects and also have lubrication assistant hole, this lubrication assistant hole and shoe cream room separation are in the both sides of the first oil inlet hole, and the outer surface of bent axle connection upper cover, the inner in lubrication assistant hole and upper oil sump are run through in the outer end in lubrication assistant hole;
The inwall of the second arc groove of bent axle connection lower cover has lower oil trap, and this lower oil trap is semi-circular shape, and is looped around the outer surface of lower bearing, and lower bearing has the second oil inlet hole, the inner and outer surface of the through lower bearing of this second oil inlet hole; Described lower oil trap and upper oil trap connect, the oil trap of a composition ring; Have oil through in described connecting rod, the top of this oil through is communicated with the connecting rod oil storage tank on groove, bottom be connected with bent axle cover shoe cream room be communicated with; The described end face getting rid of oil clot offers oil-feed tank, and is provided with oil duct between oil-feed tank and lower oil trap, by oil-feed tank and lower oil sump.As optimization, the two ends of described connecting pin are provided with snap ring.
Relative to prior art, the utility model tool has the following advantages:
1, piston rod in prior art and connecting rod are integrally divided into piston rod and connecting rod two parts, and linked together by pivot pin, connecting rod opposing pistons bar can rotate, and to solve in prior art because complex structure, pressurized air demand are comparatively large, the problem such as the easy-rupturing caused by structural strength deficiency that connecting rod and piston rod integrally cause; The setting of connecting rod oil storage tank and oilhole, when motor is in rotary work state, get rid of oil clot and touch the machine oil in crankcase and make it splash, the machine oil of splashing is stored in oil storage tank, enters oilhole under the influence of centrifugal force, lubrication connecting pin and the first pin-and-hole.
2, the utility model is not when changing petrol engine performance and lubricating system, and unidirectional lubrication oil-feed is changed into Bidirectional lubricating oil-feed, has the features such as structure is simple, making is easy, cost of production is low, lubrication effect is good, applied widely.
Accompanying drawing explanation
Fig. 1 is the plan view of crankshaft & connecting.
Fig. 2 is the enlarged view at Figure 1A place
Fig. 3 is the side-looking structural representation of Fig. 1 crankshaft & connecting.(part is omitted)
Description of reference numerals: connecting rod 10, groove 11, connecting pin 12, bent axle connects upper cover 31, top bearing shell 31-1, upper oil trap 31-2, the first oil inlet hole 31-3, shoe cream room 31-4, lubrication assistant hole 31-5, bent axle connects lower cover 32, lower bearing 32-1, lower oil trap 32-2, second oil inlet hole 32-3, bent axle pin-and-hole 33, gets rid of oil clot 34, oil groove 34-1, oil duct 34-2, first connecting rod bolt 35, second connecting rod bolt 36, piston rod 40.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
In description of the present utility model, it will be appreciated that, term " on ", D score, "front", "rear", "left", "right", " top ", " end " " interior ", " outward ", etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In description of the present utility model, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
See Fig. 1 to Fig. 3, a kind of split type crankshaft & connecting little by load impacting, comprises connecting rod and bent axle connecting cover.The upper end of connecting rod has groove, and two sidewalls of this groove have the first coaxial pin-and-hole respectively, and the lower end of piston rod is cylindrical structure, and the lower end of piston rod has the second pin-and-hole; The lower end of piston rod is arranged in the groove of small end, and the internal surface of the outer surface of small end and groove has gap.Also comprise connecting pin, this connecting pin is successively through the first pin-and-hole on groove sidewall, the first pin-and-hole on second pin-and-hole and another sidewall of groove, and connecting pin and the first pin-and-hole and the second pin-and-hole Spielpassung, make connecting rod be that axle rotates with connecting pin in groove.
Bent axle connecting cover comprises bent axle connection upper cover and is connected lower cover with the bent axle be positioned at below it, and bent axle connection upper cover is connected lower cover with bent axle and removably connects.Bent axle connection upper cover is connected lower cover and is half nahlock with bent axle, bent axle connection upper cover is connected half nahlock of lower cover arranged on left and right sides with bent axle has vertical threaded coaxial hole, is respectively the first tapped hole and the second tapped hole.The bent axle connection upper cover of half nahlock is identical with the radius that bent axle connects lower cover, and the plane process polishing processing that two and half nahlocks are relative.Bent axle connect upper cover is connected with bent axle lower cover pass through through the first circular hole first connecting rod bolt and pass the second connecting rod bolt of the second circular hole, bent axle is connected upper cover and is connected lower cover with bent axle and links together.Bent axle connects upper cover and is fixedly connected with the lower end of connecting rod, and connecting rod is connected upper cover with bent axle can be processed as entirety.
Bent axle connects upper cover and has semicircular first arc groove, and bent axle covers under connecting and has semicircular second arc groove, and the first arc groove and the second arc groove surround and form bent axle pin-and-hole, are provided with crankpin in this bent axle pin-and-hole.
In first arc groove, top bearing shell is housed, in the second arc groove, lower bearing is housed, top bearing shell and lower bearing are arranged in described bent axle pin-and-hole, and top bearing shell and lower bearing connect, and encircle the middle part at crankpin.
One end that bent axle connects bottom lower cover extends obliquely, is formed and gets rid of oil clot, and bent axle connects lower cover and gets rid of oil clot and is structure as a whole, and when specifically implementing, bent axle is connected lower cover and gets rid of oil clot and is integrated by forging molding by aluminum alloy.
The inwall of small end groove, circumference has connecting rod oil storage tank, namely the cambered surface direction along the inwall of groove has connecting rod oil storage tank, the setting of connecting rod oil storage tank, the machine oil that splashes in crankcase can be made being stored in connecting rod oil storage tank, and two sidewalls of groove are also respectively equipped with oilhole, and one end of oilhole is communicated with connecting rod oil storage tank, the other end is communicated with the first pin-and-hole, and this of oilhole is mainly used for lubrication connecting pin and the first pin-and-hole.
The inwall of the first arc groove covered on bent axle connects has oil trap, on this, oil trap is semi-circular shape, and be looped around the outer surface of top bearing shell, top bearing shell has the first oil inlet hole, and the inner and outer surface of the through top bearing shell of the first oil inlet hole, the first oil inlet hole is preferably positioned near the peak of top bearing shell; Bent axle connect upper cover have shoe cream room, this shoe cream room near the first oil inlet hole, shoe cream room and upper oil sump, under centrifugal action, enter the machine oil of oil trap, a part can enter shoe cream room and store, therefore, what shoe cream room stored is provided with the lubrication being beneficial to crankpin.Can also cover on bent axle connects and have lubrication assistant hole, this lubrication assistant hole and shoe cream room separation are in the both sides of the first oil inlet hole, lubrication assistant hole is obliquely installed, and the outer surface of bent axle connection upper cover, the inner in lubrication assistant hole and upper oil sump are run through in the outer end in lubrication assistant hole.
The inwall of the second arc groove of bent axle connection lower cover has lower oil trap, and this lower oil trap is semi-circular shape, and is looped around the outer surface of lower bearing, and lower bearing has the second oil inlet hole, the inner and outer surface of the through lower bearing of this second oil inlet hole; Lower oil trap and upper oil trap connect, the oil trap of a composition ring.
Have oil through in connecting rod, the top of this oil through is communicated with the connecting rod oil storage tank on groove, the bottom of oil through be connected with bent axle cover shoe cream room be communicated with.
The end face getting rid of oil clot offers oil-feed tank, and is provided with oil duct between oil-feed tank and lower oil trap, by oil-feed tank and lower oil sump, particularly, oil duct is in the tangent direction of lower bearing, and the inner port of oil duct is connected with lower oil trap, and the external port of oil duct is on the madial wall of oil-feed tank.
The two ends of connecting pin are provided with snap ring, prevent connecting pin from deviating from from the second pin-and-hole and a pair first pin-and-holes.Load after in the second pin-and-hole and a pair first pin-and-holes at link pin and reinstall snap ring.The preferred forging clasp of snap ring, also can according to selecting bending clasp, back-action clasp, combined clasp, half and half clasp.
In the utility model, the working principle of greasing is as follows:
When motor is in rotary work state, gets rid of oil clot and touch the machine oil in crankcase and make it splash.The oil-feed tank got rid of on oil clot scoops up machine oil and stores, machine oil under the influence of centrifugal force, enter lower oil trap by oil duct, the machine oil at a lower oil trap place part to be entered lower bearing internal surface lubrication crankpin by the second oil inlet hole, and another part enters oil trap under the influence of centrifugal force.The machine oil part at upper oil trap place enters shoe cream room and stores, and another part enters top bearing shell internal surface lubrication crankpin by the first oil inlet hole.Simultaneously, machine oil splashes by getting rid of oil clot, miscellaneous part in part lubricating engine crankcase, a part is splashed in the connecting rod oil storage tank in the groove of small end, enter a machine oil part in connecting rod oil storage tank under the influence of centrifugal force, lubricate the first pin-and-hole and connecting pin by oilhole, another part is again entered in bent axle connection by the oil through in connecting rod and covers shoe cream room, forms circulation.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in right of the present utility model will in book.
Claims (2)
1., by the split type crankshaft & connecting that load impacting is little, comprise connecting rod and bent axle connecting cover, it is characterized in that:
The upper end of described connecting rod has groove, and two sidewalls of this groove have the first coaxial pin-and-hole respectively, and the lower end of described piston rod is cylindrical structure, and the lower end of piston rod has the second pin-and-hole; The lower end of piston rod is arranged in described groove, and the outer surface of the lower end of piston rod and the internal surface of groove have gap; Also comprise connecting pin, this connecting pin successively through the first pin-and-hole on groove sidewall, the first pin-and-hole on the second pin-and-hole and another sidewall of groove, and connecting pin and the first pin-and-hole and the second pin-and-hole Spielpassung;
Described bent axle connecting cover comprises bent axle connection upper cover and is connected lower cover with the bent axle be positioned at below it, and described bent axle connection upper cover is connected lower cover with bent axle and removably connects;
Described bent axle connects upper cover and has semicircular first arc groove, and bent axle covers under connecting and has semicircular second arc groove, and described first arc groove and the second arc groove surround and form bent axle pin-and-hole, are provided with crankpin in this bent axle pin-and-hole;
In described first arc groove, top bearing shell is housed, in the second arc groove, lower bearing is housed, described top bearing shell and lower bearing are arranged in described bent axle pin-and-hole, and top bearing shell and lower bearing connect, and encircle the middle part at crankpin;
One end that described bent axle connects bottom lower cover extends obliquely, is formed and gets rid of oil clot, and bent axle connects lower cover and gets rid of oil clot and is structure as a whole;
The inwall of described small end groove, circumference has connecting rod oil storage tank, and two sidewalls of groove are also respectively equipped with oilhole, and one end of described oilhole is communicated with connecting rod oil storage tank, and the other end is communicated with the first pin-and-hole;
The inwall of the first arc groove covered on bent axle connects has oil trap, and on this, oil trap is semi-circular shape, and is looped around the outer surface of top bearing shell, and top bearing shell has the first oil inlet hole, and the inner and outer surface of the through top bearing shell of the first oil inlet hole; Described bent axle connects upper cover and has shoe cream room, this shoe cream room near the first oil inlet hole, shoe cream room and upper oil sump; Cover on bent axle connects and also have lubrication assistant hole, this lubrication assistant hole and shoe cream room separation are in the both sides of the first oil inlet hole, and the outer surface of bent axle connection upper cover, the inner in lubrication assistant hole and upper oil sump are run through in the outer end in lubrication assistant hole;
The inwall of the second arc groove of bent axle connection lower cover has lower oil trap, and this lower oil trap is semi-circular shape, and is looped around the outer surface of lower bearing, and lower bearing has the second oil inlet hole, the inner and outer surface of the through lower bearing of this second oil inlet hole;
Described lower oil trap and upper oil trap connect, the oil trap of a composition ring;
Have oil through in described connecting rod, the top of this oil through is communicated with the connecting rod oil storage tank on groove, bottom be connected with bent axle cover shoe cream room be communicated with;
The described end face getting rid of oil clot offers oil-feed tank, and is provided with oil duct between oil-feed tank and lower oil trap, by oil-feed tank and lower oil sump.
2. the split type crankshaft & connecting little by load impacting as claimed in claim 1, is characterized in that: the two ends of described connecting pin are provided with snap ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420672407.4U CN204300263U (en) | 2014-11-12 | 2014-11-12 | A kind of split type crankshaft & connecting little by load impacting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420672407.4U CN204300263U (en) | 2014-11-12 | 2014-11-12 | A kind of split type crankshaft & connecting little by load impacting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204300263U true CN204300263U (en) | 2015-04-29 |
Family
ID=53105804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420672407.4U Expired - Fee Related CN204300263U (en) | 2014-11-12 | 2014-11-12 | A kind of split type crankshaft & connecting little by load impacting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204300263U (en) |
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2014
- 2014-11-12 CN CN201420672407.4U patent/CN204300263U/en not_active Expired - Fee Related
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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: 20150429 Termination date: 20151112 |
|
| EXPY | Termination of patent right or utility model |