CN204300265U - A kind of crankshaft & connecting that surface friction drag is little when moving - Google Patents
A kind of crankshaft & connecting that surface friction drag is little when moving Download PDFInfo
- Publication number
- CN204300265U CN204300265U CN201420686768.4U CN201420686768U CN204300265U CN 204300265 U CN204300265 U CN 204300265U CN 201420686768 U CN201420686768 U CN 201420686768U CN 204300265 U CN204300265 U CN 204300265U
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- Prior art keywords
- bent axle
- pin
- connecting rod
- hole
- groove
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Abstract
The crankshaft & connecting that when the utility model relates to motion, surface friction drag is little, 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 crankshaft & connecting that surface friction drag is little when moving.
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 joint not easy-rupturing.
For achieving the above object, the utility model adopts following technological scheme: a kind of crankshaft & connecting that surface friction drag is little when moving, comprise connecting rod and bent axle connecting cover, the lower end of described connecting rod is connected with bent axle by bent axle connecting cover, described bent axle is provided with counterweight, be provided with pair of cams axle symmetrically respectively in the left and right sides of counterweight, described camshaft is provided with gear; The upper end of described connecting rod is connected with piston rod, and the top of piston rod is connected with spark plug, and in the both sides of piston rod, symmetrical is provided with push rod body, is provided with push rod in push rod body, and push rod can be movable back and forth in push rod body; 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 is fixedly connected with the lower end of connecting rod, described connecting rod lower end has tapped hole, bent axle covers on connecting and is fixed with connection boss, the periphery of this connection boss is processed with screw thread, connect boss to stretch in the tapped hole of connecting rod lower end, and the screw thread on the tapped hole of connecting rod lower end matches with the screw thread be connected on boss; 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.
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: 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.
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 assembly structure schematic diagram of Fig. 1 crankshaft & connecting.
Description of reference numerals: connecting rod 10, groove 11, connecting pin 12, bent axle 20, counterweight 21, camshaft 22, gear 23, bent axle connects upper cover 31, and bent axle connects lower cover 32, piston rod 40, push rod body 41, push rod 42, spark plug 50.
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 crankshaft & connecting that surface friction drag is little when moving, comprise connecting rod and bent axle connecting cover, the lower end of described connecting rod is connected with bent axle by bent axle connecting cover, described bent axle is provided with counterweight, be provided with pair of cams axle symmetrically respectively in the left and right sides of counterweight, described camshaft is provided with gear; The upper end of described connecting rod is connected with piston rod, and the top of piston rod is connected with spark plug, and in the both sides of piston rod, symmetrical is provided with push rod body, is provided with push rod in push rod body, and push rod can be movable back and forth in push rod body.Have employed on bent axle and counterweight is installed, in the both sides of counterweight, camshaft is set respectively, camshaft installs gear, piston rod is connected in the upper end of connecting rod, piston rod is installed the mode of structure that spark plug drives push rod, make that crankshaft-link rod is on-stream does not produce temperature rise as much as possible, whole crankshaft & connecting is had, and surface friction drag is little, unobstructed, the wearing and tearing of operating are less with by the advantage of load impacting.
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, connecting rod is connected upper cover with bent axle can be processed as entirety, also can at connecting rod lower end thread mill drilling, bent axle covers on connecting and is fixed with connection boss, screw thread is processed with in the periphery of this connection boss, this connection boss stretches in the tapped hole of connecting rod lower end, screw thread on the tapped hole of connecting rod lower end matches with the screw thread be connected on boss, make connecting rod lower end be connected upper cover with bent axle to connect, bent axle is connected under bent axle connects and covers, and this Placement is more convenient for overhauling and dismounting.
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, oilhole be mainly used for lubrication connecting pin and the first pin-and-hole.
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.
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. the crankshaft & connecting that when moving, surface friction drag is little, comprises connecting rod and bent axle connecting cover, it is characterized in that:
The lower end of described connecting rod is connected with bent axle by bent axle connecting cover, described bent axle is provided with counterweight, is provided with pair of cams axle symmetrically respectively in the left and right sides of counterweight, described camshaft is provided with gear;
The upper end of described connecting rod is connected with piston rod, and the top of piston rod is connected with spark plug, and in the both sides of piston rod, symmetrical is provided with push rod body, is provided with push rod in push rod body, and push rod can be movable back and forth in push rod body;
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 is fixedly connected with the lower end of connecting rod, described connecting rod lower end has tapped hole, bent axle covers on connecting and is fixed with connection boss, the periphery of this connection boss is processed with screw thread, connect boss to stretch in the tapped hole of connecting rod lower end, and the screw thread on the tapped hole of connecting rod lower end matches with the screw thread be connected on boss;
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.
2. the crankshaft & connecting that during motion as claimed in claim 1, surface friction drag is little, 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 |
|---|---|---|---|
| CN201420686768.4U CN204300265U (en) | 2014-11-17 | 2014-11-17 | A kind of crankshaft & connecting that surface friction drag is little when moving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420686768.4U CN204300265U (en) | 2014-11-17 | 2014-11-17 | A kind of crankshaft & connecting that surface friction drag is little when moving |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204300265U true CN204300265U (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420686768.4U Expired - Fee Related CN204300265U (en) | 2014-11-17 | 2014-11-17 | A kind of crankshaft & connecting that surface friction drag is little when moving |
Country Status (1)
| Country | Link |
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| CN (1) | CN204300265U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455293A (en) * | 2014-11-17 | 2015-03-25 | 重庆翼虎动力机械有限公司 | Crankshaft and connecting rod mechanism small in frication resistance in movement process |
-
2014
- 2014-11-17 CN CN201420686768.4U patent/CN204300265U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455293A (en) * | 2014-11-17 | 2015-03-25 | 重庆翼虎动力机械有限公司 | Crankshaft and connecting rod mechanism small in frication resistance in movement process |
| CN104455293B (en) * | 2014-11-17 | 2017-04-12 | 重庆翼虎动力机械有限公司 | Crankshaft and connecting rod mechanism small in frication resistance in movement process |
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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: 20151117 |
|
| EXPY | Termination of patent right or utility model |