CN201763447U - Piston linkage device for connecting rod guide reciprocation piston type internal combustion engine - Google Patents
Piston linkage device for connecting rod guide reciprocation piston type internal combustion engine Download PDFInfo
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- CN201763447U CN201763447U CN2010205520476U CN201020552047U CN201763447U CN 201763447 U CN201763447 U CN 201763447U CN 2010205520476 U CN2010205520476 U CN 2010205520476U CN 201020552047 U CN201020552047 U CN 201020552047U CN 201763447 U CN201763447 U CN 201763447U
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- bent axle
- combustion engine
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Abstract
The utility model provides a piston linkage device for connecting rod guide reciprocation piston type internal combustion engine, which belongs to the technical field of internal combustion engines, which resolves the problem of the prior art that the piston linkage device is heavy, the structure and the process are complicated. The piston linkage device comprises a piston, a crankshaft and a connecting rod consisting of a rod handle and a rod body. The utility model is characterized in that the piston is disposed in the cylinder of the internal combustion engine; the connecting rod and the crankshaft are disposed in a casing; the connecting rod handle is connected to the piston through a piston pin; the connecting rod body is provided with an eccentric circle rotating body, through which the connecting rod is connected to the crankshaft; the casing is provided with a guiding mechanism which cooperates with the connecting rod and makes the connecting rod conduct a straight reciprocating motion along the cylinder center. The utility model has advantages of long service life, light weight and simple processing and design.
Description
Technical field
The utility model belongs to technical field of internal combustion engines, relates to a kind of piston rod device of internal-combustion engine, particularly a kind of piston rod device of connecting rod guiding stroke piston combustion engine.
Background technique
The crankshaft ﹠ connecting of traditional combustion engine, connecting rod is done the wiggly compound movement in plane along with bent axle rotates, owing to be subjected to the relation of force direction, the power that conventional linkage is transmitted, must be that the lateral pressure of the cylinder pressure that gets off on the piston and cylinder wall is synthetic transmits by the power of connecting rod shank, the generation of huge lateral force (by cylinder-firing pressure, connecting rod and wall angle definite value) is one of the main killer in piston-cylinder group life-span, also causes the loss of a large amount of mechanical works simultaneously; The reciprocal inertia force of piston set generation simultaneously, can't be by single balance (crank throw balancer weight) complete equilibrium), and adopt the two balance modes of trunnion shaft, and often bring limitation that gear connects problem such as noise and layout often additionally by producing the part moment of torsion again, structure is also complicated.
" internal-combustion engine " 1981 the 8th phases were reported the no connecting rod type internal combustion engine of Japanese industry university development, the employing double-slider is used in combination, cylinder is cross layout, but it is too too fat to move that its layout is made single cylinder engine, and it is that two cylinders link by double-round slide, cause a cylinder to tilt easily, lubricant oil is scurried into piston head easily.Mention a kind of single smooth block stroke piston combustion engine among the utility application specification CN85200337U in 1985, adopt one-piece piston, cancelled connecting rod, it has done a gear pair of 2: 1, complex structure in order to overcome the motion dead point of going up lower dead center on crankshaft and piston, and in high-speed motion, gear pair is easy to generate noise, under impulsive load, also easily owing to deviation causes broken teeth.Mention a kind of double-round slide reciprocating piston internal combustion engine in the application for a patent for invention prospectus 95111403.4 in 1997, on its structure on the no connecting rod type internal combustion engine basis of Japanese industry university in 1981, adopt 90 ° of structures of twin-tub, cylinder head is not adorned in use even a cylinder list is done slideway, still structure is too fat to move but as the single cylinder engine use, and its piston also is an one-piece piston, cancelled connecting rod, its piston is grown greatly, can't make piston bucket face with tratitional technology, piston and cylinder wall are difficult for forming effective oil film; Because it is non-intersect when cylinder axis and crank pin center are most of, cylinder-firing pressure and crank pin reaction force can produce a tilting moment on piston, piston one side upper end and opposite side lower end and cylinder wall touches balance again, though it is very little to compare conventional engines power, but the destruction oil film equally easily that continues to move up and down of single-point contact, piston keeps tilting simultaneously, also leaks gas easily and lubricating oil carry-over; Simultaneously because the consideration of intensity and technology, the volume of its one-piece piston is too fat to move, be difficult to reduce quality, past contact will make cylinder iron and come proof strength as material, though can come balance inertial force by the synthetic method that increases balancer weight then of two cylinder reciprocating forces, the dislocation of two cylinders, also there is a moment of ignoring when calculating, piston is heavy more, and this moment is big more, also causes the quality of entire engine to increase many simultaneously; Its one-piece piston also makes to be torn machine examination open and repaiies very trouble, change piston, the dismounting of just must unpacking; The stroke of motor has been subjected to the restriction of cylinder diameter when designing simultaneously, its stroke has limited with the cylinder diameter ratio and has been less than 0.8, said structure has limited the layout of motor greatly, if seek out the internal-combustion engine of big discharge capacity, cause as a result cylinder diameter must do greatly, cylinder diameter causes piston mass heavy greatly, and the balancer weight quality increases, and the complete machine quality increases.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, has proposed a kind of simple in structure, long service life, does the piston rod device of the connecting rod guiding stroke piston combustion engine of straight reciprocating motion.
The purpose of this utility model can realize by following technical proposal: a kind of piston rod device of connecting rod guiding stroke piston combustion engine, comprise piston, bent axle and the connecting rod of forming by bar handle and shaft, described piston is arranged in the internal combustion (IC) engine cylinder block, described connecting rod and bent axle are arranged in the casing, it is characterized in that, described connecting rod bar handle links to each other with piston by wrist pin, described connecting rod shank is provided with an eccentric circle solid of rotation and connecting rod and links to each other with bent axle by this eccentric circle solid of rotation, and described casing is provided with and matches with connecting rod and make connecting rod make the guide mechanism of straight reciprocating motion along the cylinder block center.
With piston and link design is split-type structural, by wrist pin piston and connecting rod is fixed together, so not only convenient processing design, but also reduced of the requirement of internal-combustion engine stroke to cylinder diameter.Thereby simultaneously when making piston and connecting rod do straight reciprocating motion to need not to consider that connecting rod rotates by guide mechanism inertial force to the influence of machine stress.
In the piston rod device of above-mentioned connecting rod guiding stroke piston combustion engine, described guide mechanism comprises the around side convex edge that forms along all stretching out and the guide block that is fixed on the casing on the positive and negative surface of connecting rod shank, and the guide face of described guide block is between two convex edges of the same side.
In the piston rod device of above-mentioned connecting rod guiding stroke piston combustion engine, described guide mechanism comprises the guide block with guide groove that is fixed on the casing, and above-mentioned connecting rod shank left and right sides face lays respectively in the guide groove of corresponding guide block.
In the piston rod device of above-mentioned connecting rod guiding stroke piston combustion engine, described bent axle is made up of left bent axle and right bent axle, and described right bent axle runs through the eccentric circle solid of rotation and is connected with left bent axle.Crankshaft designs is become the not only convenient processing of left bent axle and right bent axle, but also help installing.
In the piston rod device of above-mentioned connecting rod guiding stroke piston combustion engine, dynamic balancing adjustment side slide block is installed between described connecting rod and the right bent axle, described connecting rod is clamped between dynamic balancing adjustment side slide block and the left bent axle.By the cooperation between connecting rod, dynamic balancing adjustment side slide block and the left bent axle three make connecting rod along bent axle shaft axis axially locating on bent axle.
In the piston rod device of above-mentioned connecting rod guiding stroke piston combustion engine, described connecting rod bar handle top has aperture, and above-mentioned wrist pin interts in aperture.
In the piston rod device of above-mentioned connecting rod guiding stroke piston combustion engine, described connecting rod shank middle part has macropore, and above-mentioned eccentric circle solid of rotation is arranged in the macropore.
In the piston rod device of above-mentioned connecting rod guiding stroke piston combustion engine, face middle part in the described connecting rod shank left and right sides all offers horizontally disposed oil duct, and described oil duct one end communicates with macropore, and the other end communicates with guide block.By oil duct lubricant oil is transported on the guide face of guide block, thereby the guide face of lubricated guide block is reduced friction.
In the piston rod device of above-mentioned connecting rod guiding stroke piston combustion engine, described guide block and bent axle are vertical relation.
Compared with prior art, piston rod device in this connecting rod guiding stroke piston combustion engine is a split-type structural with piston and link design, by wrist pin piston and connecting rod are fixed together, so not only convenient processing design, but also reduced of the requirement of internal-combustion engine stroke to cylinder diameter; Simultaneously by the cooperating of connecting rod and guide block, need not to consider that inertial force is to the influence of machine stress when connecting rod rotates thereby make piston and connecting rod do straight reciprocating motion.
Description of drawings
Fig. 1 is the structural representation of the utility model when being installed on the internal-combustion engine.
Fig. 2 is that the utility model is installed in the structural representation on the cylinder block.
Fig. 3 is the axial arranged structural representation of the utility model crankshaft-and-connecting-rod.
Fig. 4 is the structural representation of connecting rod in the utility model.
Fig. 5 is the side-looking structural representation of Fig. 4.
Among the figure, 1, piston; 2, connecting rod; 21, shaft; 22, bar handle; 23, oil duct; 24, convex edge; 26, macropore; 27, aperture; 3, cylinder block; 4, eccentric circle solid of rotation; 5, bent axle; 51, left bent axle; 52, right bent axle; 6, guide block; 7, wrist pin; 8, casing; 9, dynamic balancing adjustment side slide block.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Extremely shown in Figure 5 as Fig. 1, piston rod device in this connecting rod guiding stroke piston combustion engine comprises piston 1, bent axle 5 and the connecting rod of being made up of bar handle 22 and shaft 21 2, wherein piston 1 is arranged in the internal combustion (IC) engine cylinder block 3, and connecting rod 2 and bent axle 5 are arranged in the casing 8.
Connecting rod 2 bar handles 22 tops have aperture 27, and connecting rod 2 bar handles 22 link to each other with piston 1 by wrist pin 7 and wrist pin 7 interts in aperture 27.Connecting rod 2 shafts 21 middle parts have macropore 26, install to be provided with an eccentric circle solid of rotation 4 and connecting rod 2 links to each other with bent axle 5 by this eccentric circle solid of rotation 4 in the macropore 26 of connecting rod 2 shafts 21.Piston 1 and connecting rod 2 are designed to split-type structural, piston 1 and connecting rod 2 are fixed together by wrist pin 7, so not only convenient processing design, but also reduced of the requirement of internal-combustion engine stroke to cylinder diameter.
Casing 8 is provided with and matches with connecting rod 2 and make connecting rod 2 make the guide mechanism of straight reciprocating motion along cylinder block 3 centers, guide mechanism comprises the around side convex edge 24 that forms along all stretching out and the guide block 6 that is fixed on the casing 8 on connecting rod 2 shafts 21 positive and negative surfaces, the guide face of guide block 6 is between two convex edges 24 of the same side, and wherein guide block 6 is vertical relation with bent axle 5.Also can be according to actual conditions, guide mechanism is designed to be fixed on the guide block with guide groove 6 on the casing 8, connecting rod 2 shafts 21 left and right sides faces lay respectively in the guide groove of corresponding guide block 6.The same like this connecting rod 2 that can make is done straight reciprocating motion up and down along guide block 6.Bent axle 5 is made up of left bent axle 51 and right bent axle 52, and right bent axle 52 runs through eccentric circle solid of rotation 4 and is connected with left bent axle 51.Bent axle 5 is designed to left bent axle 51 and the not only convenient processing of right bent axle 52, but also helps installing.Dynamic balancing adjustment side slide block 9 is installed between connecting rod 2 and right bent axle 52, and connecting rod 2 is clamped between dynamic balancing adjustment side slide block 9 and the left bent axle 51.By the cooperation between connecting rod 2, dynamic balancing adjustment side slide block 9 and left bent axle 51 threes make connecting rod 2 along bent axle 5 shaft axis axially locating on bent axle 5.
All offer horizontally disposed oil duct 23 at face middle part, connecting rod 2 shafts, 21 left and right sides, oil duct 23 1 ends communicate with macropore 26, and the other end communicates with guide block 6.By oil duct 23 lubricant oil is transported on the guide face of guide block 6, thereby the guide face of lubricated guide block 6 is reduced friction.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (9)
1. the piston rod device of connecting rod guiding stroke piston combustion engine, comprise piston (1), bent axle (5) and the connecting rod of forming by bar handle (22) and shaft (21) (2), described piston (1) is arranged in the internal combustion (IC) engine cylinder block (3), described connecting rod (2) and bent axle (5) are arranged in the casing (8), it is characterized in that, described connecting rod (2) bar handle (22) links to each other with piston (1) by wrist pin (7), described connecting rod (2) shaft (21) is provided with an eccentric circle solid of rotation (4) and connecting rod (2) and links to each other with bent axle (5) by this eccentric circle solid of rotation (4), and described casing (8) is provided with and matches with connecting rod (2) and make connecting rod (2) make the guide mechanism of straight reciprocating motion along cylinder block (3) center.
2. the piston rod device of connecting rod guiding stroke piston combustion engine according to claim 1, it is characterized in that, the convex edge (24) that the around side that described guide mechanism comprises the positive and negative surface of connecting rod (2) shaft (21) forms along all stretching out and be fixed on guide block (6) on the casing (8), the guide face of described guide block (6) is positioned between two convex edges (24) of the same side.
3. the piston rod device of connecting rod guiding stroke piston combustion engine according to claim 1, it is characterized in that, described guide mechanism comprises the guide block with guide groove (6) that is fixed on the casing (8), and above-mentioned connecting rod (2) shaft (21) left and right sides face lays respectively in the guide groove of corresponding guide block (6).
4. according to the piston rod device of claim 1 or 2 or 3 described connecting rods guiding stroke piston combustion engines, it is characterized in that, described bent axle (5) is made up of left bent axle (51) and right bent axle (52), and described right bent axle (52) runs through eccentric circle solid of rotation (4) and is connected with left bent axle (51).
5. the piston rod device of connecting rod guiding stroke piston combustion engine according to claim 4, it is characterized in that, between described connecting rod (2) and the right bent axle (52) dynamic balancing adjustment side slide block (9) is installed, described connecting rod (2) is clamped between dynamic balancing adjustment side slide block (9) and the left bent axle (51).
6. according to the piston rod device of claim 1 or 2 or 3 described connecting rod guiding stroke piston combustion engines, it is characterized in that described connecting rod (2) bar handle (22) top has aperture (27), above-mentioned wrist pin (7) interts in aperture (27).
7. according to the piston rod device of claim 1 or 2 or 3 described connecting rod guiding stroke piston combustion engines, it is characterized in that described connecting rod (2) shaft (21) middle part has macropore (26), above-mentioned eccentric circle solid of rotation (4) is arranged in the macropore (26).
8. according to the piston rod device of claim 2 or 3 described connecting rods guiding stroke piston combustion engines, it is characterized in that, face middle part, described connecting rod (2) shaft (21) left and right sides all offers horizontally disposed oil duct (23), described oil duct (23) one ends communicate with macropore (26), and the other end communicates with guide block (6).
9. the piston rod device of connecting rod guiding stroke piston combustion engine according to claim 8 is characterized in that described guide block (6) is vertical relation with bent axle (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205520476U CN201763447U (en) | 2010-09-30 | 2010-09-30 | Piston linkage device for connecting rod guide reciprocation piston type internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205520476U CN201763447U (en) | 2010-09-30 | 2010-09-30 | Piston linkage device for connecting rod guide reciprocation piston type internal combustion engine |
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| Publication Number | Publication Date |
|---|---|
| CN201763447U true CN201763447U (en) | 2011-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205520476U Expired - Lifetime CN201763447U (en) | 2010-09-30 | 2010-09-30 | Piston linkage device for connecting rod guide reciprocation piston type internal combustion engine |
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| CN (1) | CN201763447U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943058A (en) * | 2010-09-30 | 2011-01-12 | 浙江钱江摩托股份有限公司 | Piston connecting rod device of connecting rod-guide reciprocating piston type internal combustion engine |
-
2010
- 2010-09-30 CN CN2010205520476U patent/CN201763447U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943058A (en) * | 2010-09-30 | 2011-01-12 | 浙江钱江摩托股份有限公司 | Piston connecting rod device of connecting rod-guide reciprocating piston type internal combustion engine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |