CN201110360Y - Novel crank connecting-rod mechanism - Google Patents
Novel crank connecting-rod mechanism Download PDFInfo
- Publication number
- CN201110360Y CN201110360Y CNU2007201702238U CN200720170223U CN201110360Y CN 201110360 Y CN201110360 Y CN 201110360Y CN U2007201702238 U CNU2007201702238 U CN U2007201702238U CN 200720170223 U CN200720170223 U CN 200720170223U CN 201110360 Y CN201110360 Y CN 201110360Y
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- external gear
- connecting rod
- gear
- eccentric shaft
- internal
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Abstract
A novel crank and connecting rod mechanism comprises a cylinder, a piston, a piston pin and a frame, wherein two internal gears are directly and fixedly connected with the frame or is fixedly connected with the frame through a control gear, the two internal gears are on the same axial cord and are symmetrically arranged left and right, duplex outer gears which are engaged with the two internal gears are arranged in the two internal gears, and the duplex outer gears are engaged with the internal gears, and a middle connecting shaft of the duplex outer gears are designed as an eccentric shaft, the axial cord of the eccentric shaft is vertical to a pitch circle plane of the duplex outer gear and is intersected with the pitch circle, the diameter of the pitch circle of the duplex outer gear is one second of that of the internal gear, an axle hole of the duplex outer gear is rotationally and coaxially connected with the integral circular motion part, wherein the power output end of the crank and the internal gear are on the same axial cord, the eccentric shaft is rotationally connected with the piston pin and the two ends of the connecting rod. The crank and connecting rod mechanism can be forced with no lateral force or less lateral force, the piston stroke is adjustable, and the crank and connecting rod mechanism can be applied in the mechanical field such as motors, compressors, punching presses and the like.
Description
Technical field
The utility model relates to engine art.
Background technique
Adopt connecting rod with the to-and-fro motion and the conversion mutually that rotatablely moves in the traditional mechanical, but toward the moving parts of double action lateral force is arranged all, and the stroke of motion fixes, therefore big the and stroke of wearing and tearing and frictional loss can not be adjusted.Conventional engines particularly, because the operating mode of piston is harsh especially and bear very big lateral force,, and then cause the cylinder drops of motor so cylinder, piston and wear of piston-rings are quite serious, fuel, consumption of lubricating oil increase, and outputting power descends and hazardous emission increases; In addition under the different operating modes of motor, for the stroke of motor different requirements is arranged, but because under traditional connecting rod, the adjustment of piston is very difficult.Though up to the present there is the inventor to propose different schemes, but all can't be used for reality, so be badly in need of that invention is a kind of not to be subjected to piston or to be subjected to lateral force less, and can adjust the new technology of piston stroke, to improve the mechanical efficiency of motor, significantly prolong the working life of cylinder, piston and piston ring, and satisfy of the requirement of different operating modes piston stroke.
Summary of the invention
The purpose of this utility model provides a kind of crank-connecting rod mechanism, owing to significantly reduce the frictional force of cylinder and piston, significantly prolong the working life of cylinder and piston, and then improve motor mechanical efficiency, increase the effective output of motor, in use significantly reduce fuel, machine oil consumption, reduce the discharging of harmful substance, reduce the number of times of engine overhaul and make user cost lower; The utility model can be realized the dynamic stroke adjustment of piston in addition, and simple in structure.Motor is more simple and reliable, efficient is higher, discharge environmental protection more so can make.
The purpose of this utility model is achieved in that a kind of crank-connecting rod mechanism, comprise cylinder, piston, wrist pin, body, two internal gears and described body directly connect firmly or connect firmly through control mechanism and described body, described two internal gears are identical, and coaxial line, be symmetrically arranged, be provided with the duplex external gear that is meshed with it in described two internal gears, the left external gear of described duplex external gear is meshed with described internal gear, the right external gear of described duplex external gear is meshed with described internal gear, the intermediate connecting shaft of described duplex external gear is made as eccentric shaft, the axis normal of described eccentric shaft intersects in described duplex external gear pitch circle plane and with pitch circle, described eccentric shaft contains the axis hole of described duplex external gear, the pitch diameter of described duplex external gear is 1/2nd of a described internal gear pitch diameter, the axis hole of described duplex external gear is rotatably connected with the whole circular movement part coaxial line of bent axle, the clutch end and the internal gear of described bent axle are made as coaxial line, be provided with connecting rod between described eccentric shaft and described wrist pin, the two ends of described connecting rod are rotated with described wrist pin and described eccentric shaft respectively and are connected.
Described two internal gears and described body connect firmly.
Described two internal gears are made as can be by its rotational, and its all peripheral or local two interior external gears with engaging tooth, described two interior external gears and described control mechanism link, described control mechanism is made up of external gear, gear shaft and controlled power source, described inside and outside gear meshing tooth and the engagement of described external gear, described inside and outside gear meshing tooth and the engagement of described external gear, described external gear and gear shaft are fixedly connected, described gear shaft is connected with controlled power source, so that described interior external gear is by requirement deflection or the rotation set.
Described bent axle is made as left half bent axle and right half bent axle two-part, and described eccentric shaft does not contain the axis hole of described duplex external gear.
Described two internal gears are only established an internal gear, described duplex external gear is only established a left external gear, described bent axle is only established a left side half bent axle, be provided with axis and the vertical eccentric shaft in described left external gear pitch circle plane on described left external gear pitch circle, described eccentric shaft rotates with an end of described connecting rod and connects.
Described connecting rod is made as connecting rod and lower link two-part, the cylindrical hole of the cylindrical body of last connecting rod lower end and lower link upper end is slidingly connected, last connecting rod and lower link are located by connecting by pin, be provided with the precompression elastomer between last connecting rod and lower link, described pin can slide up and down in the slotted hole of lower link.
Working principle of the present utility model:
Shown in Fig. 1,2,3 and 4: when external gear rotates around the internal gear engagement, the to-and-fro motion on by the determined straight line in axle center of the axle center of eccentric shaft and internal gear all the time of the axle center of eccentric shaft, reciprocating two end points, be top dead center T and lower dead center B, on the eccentric shaft axle center, also on the pitch circle of internal gear, described eccentric shaft is along two end points and the center of circle conllinear of internal gear and the pitch diameter that the distance between two-end-point equals internal gear of straight reciprocating motion, the position of upper extreme point is top dead center T, and the position of lower extreme point is lower dead center B.When wrist pin, eccentric shaft and internal gear three axis coplanes, eccentric shaft, connecting rod, piston are only done translation, and piston is not subjected to lateral force, and this moment, eccentric shaft was in vertical reciprocating motion the stroke maximum of piston; When wrist pin, eccentric shaft and internal gear three parallel axes but not during coplane, the stroke of piston will reduce, and when determined of face of determining when wrist pin and internal gear two axial lines and eccentric shaft and internal gear two axial lines were perpendicular, the stroke of piston was the shortest, at this moment, eccentric shaft is made horizontal reciprocating movement; When internal gear freely rotated, eccentric shaft overlapped with the internal gear axis, the complete stop motion of piston.
The utility model has following actively useful effect:
1, because piston is not subjected to the effect of lateral force, and the frictional force between the cylinder and piston significantly reduces, and can significantly prolong the working life of component such as cylinder, piston, piston ring, user cost is lower;
2, because significantly the reducing of frictional force between the cylinder and piston, mechanical efficiency improves, and can obviously improve useful output power, the fuel saving of motor, and user cost is lower, energy-saving and environmental protection;
3, because the utility model can dynamically be adjusted the stroke of piston, thereby can make engine operating condition more scientific and reasonable, and, switch so can effectively carry out the work of different cylinder numbers owing to when engine rotation, can make the piston stop motion;
4, the utility model can be widely used in mechanical fields such as motor, compressor, punch press.
Description of drawings
Fig. 1 is the structural representation of the utility model first embodiment's piston when top dead center;
Fig. 2 is the structural representation of first embodiment's piston when middle arbitrary position;
Fig. 3 is the structural representation of first embodiment's piston when lower dead center;
Fig. 4 is that the A-A of Fig. 1 is to sectional view;
Fig. 5 is the structural representation of second embodiment's piston when top dead center;
Fig. 6 is the structural representation of second embodiment's piston when middle arbitrary position;
Fig. 7 is the structural representation of second embodiment's piston when lower dead center;
Fig. 8 is that the B-B of Fig. 5 is to sectional view;
Fig. 9 is the 3rd embodiment's a structural representation;
Figure 10 is the 4th embodiment's a structural representation;
Figure 11 is the 5th embodiment's a structural representation;
Accompanying drawing number
1. cylinder 2. pistons 3. wrist pins 4. bodies 5. control mechanisms
50, external gear 6. duplex external gear 60. (gear) axis holes in 51. internal gears 501,511.
53,54. (interior external gear periphery) engaging tooth 55,56. external gears 57. gear shafts
61,62. (the duplex external gear) external gear, 7. eccentric shafts, 8. bent axles
(81. bent axle) whole circular movement part 82,83. (bent axle) clutch end
9. connecting rod 92. lower links 93. pins 94. precompression elastomers on the connecting rod 91.
(95. lower link) slotted hole 10. left half bent axle, 11. right half bent axle, 71. eccentric shafts
T. (eccentric shaft axis) top dead center position B. (eccentric shaft axis) bottom dead center position
Embodiment
Please refer to Fig. 1,2, a kind of crank-connecting rod mechanism shown in 3 and 4, comprise cylinder 1, piston 2, wrist pin 3, body 4, two internal gears 50,51 directly connect firmly with described body 4, described two internal gears 50,51 is identical, and coaxial line, be symmetrically arranged, described two internal gears 50, be provided with the duplex external gear 6 that is meshed with it in 51, the left external gear 61 of described duplex external gear 6 is meshed with described internal gear 50, the right external gear 62 of described duplex external gear 6 is meshed with described internal gear 51, the intermediate connecting shaft of described duplex external gear 6 is made as eccentric shaft 7, the axis normal of described eccentric shaft 7 intersects in described duplex external gear 6 pitch circle planes and with pitch circle, described eccentric shaft 7 contains the axis hole 60 of described duplex external gear 6, the pitch diameter of described duplex external gear 6 is described internal gears 50, / 2nd of 51 pitch diameters, the axis hole 60 of described duplex external gear 6 is rotatably connected with whole circular movement part 81 coaxial lines of bent axle 8, the clutch end 82 of described bent axle 8,83 with internal gear 50,51 are made as coaxial line, be provided with connecting rod 9 between described eccentric shaft 7 and described wrist pin 3, the two ends of described connecting rod 9 are rotated with described wrist pin 3 and described eccentric shaft 7 respectively and are connected
During enforcement, described duplex external gear 6 and internal gear 50,51 can be made as the split splicing structure, convenient for assembly, maintenance.Described wrist pin 3, eccentric shaft 7 are in the same plane with the axis of internal gear 50,51, and internal gear 50,51 maintains static, and piston 2 has range, and stroke equals the pitch diameter of internal gear 50,51.
Please refer to Fig. 5,6,7 and 8, described two internal gears 50,51 be made as can be by its rotational, and its periphery is whole or the part has engaging tooth 53, two interior external gears 501 of 54,511, described two interior external gears 501,511 link with described control mechanism 5, described control mechanism 5 is by external gear 55,56, gear shaft 57 and controlled power source are formed, the engaging tooth 53 of external gear 501 and described external gear 55 engagements in described, the engaging tooth 54 of external gear 511 and described external gear 56 engagements in described, described external gear 55,56 and gear shaft 57 be fixedly connected, described gear shaft 57 is connected with controlled power source, so that external gear 501 in described, 511 by requirement deflection or the rotation set, and all the other structures are with embodiment 1.
When external gear 501,511 turns over identical angle in external gear 55,56 drives simultaneously, described wrist pin 3, eccentric shaft 7 are parallel to each other with the axis of interior external gear 501,511, but be not in the same plane, the stroke of piston 2 reduces, according to the angle difference that interior external gear 501,511 is changeed, between the internal gear pitch diameter of the stroke of its piston 2 external gear 501,511 in zero-sum; When interior external gear 501,511 freely rotates, eccentric shaft 7 and interior external gear 501,511 deads in line, piston stop motion.
Crank-connecting rod mechanism as shown in Figure 9, described bent axle 8 are made as left half bent axle 10 and right half bent axle, 11 two-part, and described eccentric shaft 7 does not contain the axis hole 60 of described duplex external gear 6, and all the other structures are with embodiment 1.
Crank-connecting rod mechanism as shown in figure 10,50,51 of described two internal gears are established an internal gear 50,6 of described duplex external gears are established a left external gear 61,8 on described bent axle is established a left side half bent axle 10, on described left external gear 61 pitch circles, be provided with axis and the vertical eccentric shaft 71 in described left external gear 61 pitch circle planes, described eccentric shaft 71 rotates with an end of described connecting rod 9 and connects, and all the other structures are with embodiment 3.
Crank-connecting rod mechanism as shown in figure 11, described connecting rod 9 is made as connecting rod 91 and lower link 92 two-part, the cylindrical body of last connecting rod 91 lower ends and the cylindrical hole of lower link 92 upper ends are slidingly connected, last connecting rod 91 is located by connecting by pin 93 with lower link 92, between last connecting rod 91 and lower link 92, be provided with precompression elastomer 94, described pin 93 can slide up and down in the slotted hole 95 of lower link 92, and all the other structures are with embodiment 1.
Claims (6)
1. crank-connecting rod mechanism, comprise cylinder (1), piston (2), wrist pin (3), body (4), it is characterized in that: two internal gears (50,51) directly connect firmly with described body (4) or connect firmly through control mechanism (5) and described body (4), described two internal gears (50,51) identical, and coaxial line, be symmetrically arranged, described two internal gears (50,51) be provided with the duplex external gear (6) that is meshed with it in, the left external gear (61) of described duplex external gear (6) is meshed with described internal gear (50), the right external gear (62) of described duplex external gear (6) is meshed with described internal gear (51), the intermediate connecting shaft of described duplex external gear (6) is made as eccentric shaft (7), the axis normal of described eccentric shaft (7) intersects in described duplex external gear (6) pitch circle plane and with pitch circle, described eccentric shaft (7) contains the axis hole (60) of described duplex external gear (6), the pitch diameter of described duplex external gear (6) is described internal gear (50,51) 1/2nd of pitch diameter, the axis hole (60) of described duplex external gear (6) is rotatably connected with whole circular movement part (81) coaxial line of bent axle (8), the clutch end (82 of described bent axle (8), 83) with internal gear (50,51) be made as coaxial line, be provided with connecting rod (9) between described eccentric shaft (7) and described wrist pin (3), the two ends of described connecting rod (9) are rotated with described wrist pin (3) and described eccentric shaft (7) respectively and are connected.
2. crank-connecting rod mechanism according to claim 1, it is characterized in that: described two internal gears (50,51) connect firmly with described body (4).
3. crank-connecting rod mechanism according to claim 1, it is characterized in that: described two internal gears (50,51) being made as can be by its rotational, and its periphery is whole or the part has engaging tooth (53,54) two interior external gears (501,511), described two interior external gears (501,511) link with described control mechanism (5), described control mechanism (5) is by external gear (55,56), gear shaft (57) and controlled power source are formed, the engaging tooth (53) of external gear (501) and described external gear (55) engagement in described, the engaging tooth (54) of external gear (511) and described external gear (56) engagement in described, described external gear (55,56) and gear shaft (57) be fixedly connected, described gear shaft (57) is connected with controlled power source, so that external gear (501 in described, 511) by requirement deflection or the rotation set.
4. as crank-connecting rod mechanism as described in the claim 1,2 or 3, it is characterized in that: described bent axle (8) is made as left half bent axle (10) and right half bent axle (11) two-part, and described eccentric shaft (7) does not contain the axis hole (60) of described duplex external gear (6).
5. as crank-connecting rod mechanism as described in the claim 1,2 or 3, it is characterized in that: described two internal gears (50,51) are only established an internal gear (50), described duplex external gear (6) is only established a left external gear (61), described bent axle (8) is only established a left side half bent axle (10), be provided with the axis eccentric shaft (71) vertical with described left external gear (61) pitch circle plane on described left external gear (61) pitch circle, described eccentric shaft (71) rotates with an end of described connecting rod (9) and connects.
6. as crank-connecting rod mechanism as described in the claim 1,2 or 3, it is characterized in that: described connecting rod (9) is made as connecting rod (91) and lower link (92) two-part, the cylindrical hole of the cylindrical body of last connecting rod (91) lower end and lower link (92) upper end is slidingly connected, last connecting rod (91) is located by connecting by pin (93) with lower link (92), be provided with precompression elastomer (94) between last connecting rod (91) and lower link (92), described pin (93) can slide up and down in the slotted hole (95) of lower link (92).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201702238U CN201110360Y (en) | 2007-08-16 | 2007-08-16 | Novel crank connecting-rod mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201702238U CN201110360Y (en) | 2007-08-16 | 2007-08-16 | Novel crank connecting-rod mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201110360Y true CN201110360Y (en) | 2008-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201702238U Expired - Fee Related CN201110360Y (en) | 2007-08-16 | 2007-08-16 | Novel crank connecting-rod mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201110360Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494099A (en) * | 2011-12-19 | 2012-06-13 | 中国南方航空工业(集团)有限公司 | Crank planetary gear mechanism |
| CN102877905A (en) * | 2011-09-08 | 2013-01-16 | 摩尔动力(北京)技术股份有限公司 | Reciprocating motion body cam valve actuating mechanism |
| CN113083391A (en) * | 2021-04-07 | 2021-07-09 | 宁儿医院股份有限公司 | Novel liquid-transfering gun head loads device |
-
2007
- 2007-08-16 CN CNU2007201702238U patent/CN201110360Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877905A (en) * | 2011-09-08 | 2013-01-16 | 摩尔动力(北京)技术股份有限公司 | Reciprocating motion body cam valve actuating mechanism |
| CN102877905B (en) * | 2011-09-08 | 2014-09-24 | 摩尔动力(北京)技术股份有限公司 | Reciprocating motion body cam valve actuating mechanism |
| CN102494099A (en) * | 2011-12-19 | 2012-06-13 | 中国南方航空工业(集团)有限公司 | Crank planetary gear mechanism |
| CN102494099B (en) * | 2011-12-19 | 2014-12-03 | 中国南方航空工业(集团)有限公司 | Crank planetary gear mechanism |
| CN113083391A (en) * | 2021-04-07 | 2021-07-09 | 宁儿医院股份有限公司 | Novel liquid-transfering gun head loads device |
| CN113083391B (en) * | 2021-04-07 | 2022-04-12 | 宁儿医院股份有限公司 | Novel liquid-transfering gun head loads device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080903 Termination date: 20090916 |