CN215409741U - Crankshaft connecting rod device - Google Patents
Crankshaft connecting rod device Download PDFInfo
- Publication number
- CN215409741U CN215409741U CN202121373982.0U CN202121373982U CN215409741U CN 215409741 U CN215409741 U CN 215409741U CN 202121373982 U CN202121373982 U CN 202121373982U CN 215409741 U CN215409741 U CN 215409741U
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- CN
- China
- Prior art keywords
- connecting rod
- crankshaft connecting
- bearing mechanism
- crankshaft
- bent axle
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000007246 mechanism Effects 0.000 claims abstract description 52
- 238000005461 lubrication Methods 0.000 description 10
- 230000002035 prolonged effect Effects 0.000 description 8
- 238000007789 sealing Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model provides a crankshaft connecting rod device, which belongs to the technical field of two-stroke engines and comprises two driving rotating shafts, wherein the lower end of the driving rotating shaft positioned on the upper side is rotatably connected with a first crankshaft connecting rod, the lower end of the first crankshaft connecting rod is connected with a first bearing mechanism, the lower end of the first bearing mechanism is connected with a second crankshaft connecting rod, the lower end of the second crankshaft connecting rod is connected with a second bearing mechanism, the lower end of the second bearing mechanism is connected with a third crankshaft connecting rod, and the upper end of the driving rotating shaft positioned on the lower side is rotatably connected with the lower end of the third crankshaft connecting rod.
Description
Technical Field
The utility model belongs to the technical field of two-stroke engines, and particularly relates to a crankshaft connecting rod device.
Background
At present, the crankshaft is the most important component in the engine. The crankshaft bears the force transmitted by the connecting rod, converts the force into torque, outputs the torque through the crankshaft and drives other accessories on the engine to work, and the crankshaft bears the bending and twisting load under the combined action of the centrifugal force of the rotating mass, the gas inertia force with periodic change and the reciprocating inertia force.
The service life of the crankshaft is limited due to the problems of the existing processing technology and the lubrication.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a crankshaft connecting rod device, and aims to solve the problem that the service life of a crankshaft is limited to a certain extent due to the problems of the existing machining process and the lubricating problem in the prior art.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a crankshaft connecting rod device, includes two initiative pivots, is located the upside the lower extreme of initiative pivot is rotated and is connected with first bent axle connecting rod, the lower extreme of first bent axle connecting rod is connected with first bearing mechanism, the lower extreme of first bearing mechanism is connected with second bent axle connecting rod, the lower extreme of second bent axle connecting rod is connected with second bearing mechanism, the lower extreme of second bearing mechanism is connected with third bent axle connecting rod, is located the downside the upper end of initiative pivot is rotated and is connected in the lower extreme of third bent axle connecting rod.
As a preferable aspect of the present invention, each of the first bearing mechanism and the second bearing mechanism includes a driven rotation shaft, two retainers, an inner ring, an outer ring, and a plurality of rollers, the driven rotation shaft is rotatably connected to the end portions of the first crankshaft connecting rod and the second crankshaft connecting rod that are close to each other, the inner ring is rotatably connected to a circumferential surface of the driven rotation shaft, the two retainers are rotatably connected to a circumferential surface of the inner ring, the plurality of rollers are rotatably connected between the end portions of the two retainers that are close to each other, and the outer ring is rotatably connected to circumferential surfaces of the plurality of rollers.
As a preferable scheme of the present invention, the circumferential surfaces of the two outer rings are fixedly connected with retaining rings.
In a preferred embodiment of the present invention, a seal disc is rotatably connected to the circumferential surface of each of the two driven rotating shafts, and the seal disc is located on the lower side of the outer ring.
In a preferred embodiment of the present invention, a driving worm gear is rotatably connected to a circumferential surface of the driving shaft located at a lower side, and the driving worm gear is located at a lower side of the third crankshaft connecting rod.
In a preferred embodiment of the present invention, a lower bearing is rotatably connected to a circumferential surface of the driving shaft at a lower side, and the lower bearing is located at a lower side of the driving scroll.
Compared with the prior art, the utility model has the beneficial effects that:
1. in the device, a first bearing mechanism and a second bearing mechanism are respectively arranged between a first crankshaft connecting rod, a second crankshaft connecting rod and a third crankshaft connecting rod of the device, friction between the first crankshaft connecting rod, the second crankshaft connecting rod and the third crankshaft connecting rod and an engine shell can be reduced, an active worm disc is used for driving an oil lubrication pump, the oil separation lubrication is realized, the stability of the engine lubrication is ensured, the service life of the device is prolonged to a certain extent, two retainers can ensure that a roller does not fall off, the size of the roller is slightly smaller than that of an inner ring and an outer ring, so that the contact area of the roller with the inner ring and the roller is large, the bearing capacity is strong, the impact resistance of the first bearing mechanism and the second bearing mechanism is ensured, and the service life of the device is greatly prolonged.
2. In this device, the setting of retaining ring can prevent that first bearing mechanism and second bearing mechanism from rocking, can also play the sealed effect of certain degree, first crankshaft connecting rod, second crankshaft connecting rod and third crankshaft connecting rod three, be equipped with first bearing mechanism and second bearing mechanism, reduce the friction, can also independently change first crankshaft connecting rod, second crankshaft connecting rod and third crankshaft connecting rod, reduce the cost, sealed dish can play sealed effect, can guarantee that engine crankshaft cavity is not tight gas blowby.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a front view of the present invention;
FIG. 2 is a partial cross-sectional view of the present invention;
FIG. 3 is an enlarged view of FIG. 2 at A.
In the figure: 1. a first crankshaft connecting rod; 2. a second crankshaft connecting rod; 3. a third crankshaft connecting rod; 4. a driving rotating shaft; 5. a driven rotating shaft; 6. an active scroll; 7. a lower bearing; 8. a holder; 9. an inner ring; 10. a roller; 11. an outer ring; 12. a retainer ring; 13. sealing the disc; 14. a first bearing mechanism; 15. a second bearing mechanism.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-3, the present invention provides the following technical solutions:
the utility model provides a crankshaft connecting rod device, including two initiative pivots 4, the lower extreme that is located upside initiative pivot 4 rotates and is connected with first bent axle connecting rod 1, the lower extreme of first bent axle connecting rod 1 is connected with first bearing mechanism 14, the lower extreme of first bearing mechanism 14 is connected with second bent axle connecting rod 2, the lower extreme of second bent axle connecting rod 2 is connected with second bearing mechanism 15, the lower extreme of second bearing mechanism 15 is connected with third bent axle connecting rod 3, the upper end that is located downside initiative pivot 4 rotates and connects in the lower extreme of third bent axle connecting rod 3.
In the specific embodiment of the utility model, a first bearing mechanism 14 and a second bearing mechanism 15 are respectively arranged among a first crankshaft connecting rod 1, a second crankshaft connecting rod 2 and a third crankshaft connecting rod 3, so that the friction between the first crankshaft connecting rod 1, the second crankshaft connecting rod 2 and the third crankshaft connecting rod 3 and an engine shell can be reduced, an active worm disc 6 is used for driving an oil lubrication pump, the oil is separated and lubricated, the stability of the engine lubrication is ensured, the service life of the device is prolonged to a certain extent, two retainers 8 can ensure that a roller 10 does not fall off, the size of the roller 10 is slightly smaller than that of an inner ring 9 and an outer ring 11, so that the contact area between the roller 10 and the inner ring 9 as well as the size of the roller 10 is large, the bearing capacity is strong, the impact resistance of the first bearing mechanism 14 and the second bearing mechanism 15 is ensured, and the service life of the device is greatly prolonged, the setting of retaining ring 12 can prevent that first bearing mechanism 14 and second bearing mechanism 15 from rocking, can also play the sealed effect of certain degree, first crankshaft connecting rod 1, second crankshaft connecting rod 2 and 3 triplets of third crankshaft connecting rod, be equipped with first bearing mechanism 14 and second bearing mechanism 15, reduce the friction, can also independently change first crankshaft connecting rod 1, second crankshaft connecting rod 2 and third crankshaft connecting rod 3, reduce the cost, sealed dish 13 can play sealed effect, can guarantee that the engine crankshaft cavity is not tight gas blowby.
Referring to fig. 3 in particular, each of the first bearing mechanism 14 and the second bearing mechanism 15 includes a driven shaft 5, two retainers 8, an inner ring 9, an outer ring 11 and a plurality of rollers 10, the driven shaft 5 is rotatably connected to the end portions of the first crankshaft connecting rod 1 and the second crankshaft connecting rod 2 adjacent to each other, the inner ring 9 is rotatably connected to the circumferential surface of the driven shaft 5, the two retainers 8 are rotatably connected to the circumferential surface of the inner ring 9, the plurality of rollers 10 are rotatably connected between the end portions of the two retainers 8 adjacent to each other, and the outer ring 11 is rotatably connected to the circumferential surfaces of the plurality of rollers 10.
In this embodiment: the two retainers 8 can ensure that the roller 10 does not fall off, and the size of the roller 10 is slightly smaller than the sizes of the inner ring 9 and the outer ring 11, so that the contact area of the roller 10 with the inner ring 9 and the roller 10 is large, the bearing capacity is high, the impact resistance of the first bearing mechanism 14 and the second bearing mechanism 15 is ensured, and the service life of the device is greatly prolonged.
Referring specifically to fig. 3, the circumferential surfaces of the two outer rings 11 are fixedly connected with retaining rings 12.
In the specific embodiment: the retainer ring 12 can prevent the first bearing mechanism 14 and the second bearing mechanism 15 from shaking, and can also play a role in sealing to a certain extent.
Referring specifically to fig. 3, a seal disc 13 is rotatably attached to the circumferential surfaces of both of the driven shafts 5, and the seal disc 13 is located on the lower side of the outer race 11.
In this embodiment: the sealing disc 13 can play a role in sealing, and can ensure that the engine crankshaft cavity is airtight and does not blow by gas.
Specifically, referring to fig. 1, a driving worm gear 6 is rotatably connected to a circumferential surface of the driving shaft 4 located at the lower side, and the driving worm gear 6 is located at the lower side of the third crankshaft connecting rod 3.
In this embodiment: the driving worm disc 6 is used for driving an oil lubricating pump, so that the oil is separated and lubricated, the stability of engine lubrication is ensured, and the service life of the device is prolonged to a certain extent.
Specifically, referring to fig. 1, the circumferential surface of the lower driving shaft 4 is rotatably connected with a lower bearing 7, and the lower bearing 7 is located at the lower side of the driving worm 6.
In this embodiment: the friction is reduced, the first crankshaft connecting rod 1, the second crankshaft connecting rod 2 and the third crankshaft connecting rod 3 can be independently replaced, and the cost is reduced.
The working principle and the using process of the utility model are as follows: the device is provided with a first bearing mechanism 14 and a second bearing mechanism 15 respectively between a first crankshaft connecting rod 1, a second crankshaft connecting rod 2 and a third crankshaft connecting rod 3, which can reduce the friction between the first crankshaft connecting rod 1, the second crankshaft connecting rod 2 and the third crankshaft connecting rod 3 and an engine shell, a driving worm disc 6 is used for driving an oil lubrication pump, the oil separation lubrication is realized, the stability of the engine lubrication is ensured, the service life of the device is prolonged to a certain extent, two retainers 8 can ensure that a roller 10 does not fall off, the size of the roller 10 is slightly smaller than that of an inner ring 9 and an outer ring 11, thus, the contact area of the roller 10 with the inner ring 9 and the roller 10 is large, the bearing capacity is strong, the impact resistance of the first bearing mechanism 14 and the second bearing mechanism 15 is ensured, the service life of the device is greatly prolonged, the arrangement of a retainer ring 12 can prevent the first bearing mechanism 14 and the second bearing mechanism 15 from shaking, the sealing effect of a certain degree can be achieved, the first crankshaft connecting rod 1, the second crankshaft connecting rod 2 and the third crankshaft connecting rod 3 are provided with the first bearing mechanism 14 and the second bearing mechanism 15, friction is reduced, the first crankshaft connecting rod 1, the second crankshaft connecting rod 2 and the third crankshaft connecting rod 3 can be replaced independently, cost is reduced, the sealing disc 13 can achieve the sealing effect, and the fact that a crankshaft cavity of an engine is not air leakage and air blowby can be guaranteed.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A crankshaft connecting rod device is characterized in that: including two initiative pivots (4), be located the upside the lower extreme of initiative pivot (4) rotates and is connected with first bent axle connecting rod (1), the lower extreme of first bent axle connecting rod (1) is connected with first bearing mechanism (14), the lower extreme of first bearing mechanism (14) is connected with second bent axle connecting rod (2), the lower extreme of second bent axle connecting rod (2) is connected with second bearing mechanism (15), the lower extreme of second bearing mechanism (15) is connected with third bent axle connecting rod (3), is located the downside the upper end of initiative pivot (4) is rotated and is connected in the lower extreme of third bent axle connecting rod (3).
2. A crankshaft connecting rod device according to claim 1, characterized in that: all include driven shaft (5), two holders (8), inner circle (9), outer lane (11) and a plurality of roller (10) in first bearing mechanism (14) and the second bearing mechanism (15), driven shaft (5) rotate to be connected in the tip that first bent axle connecting rod (1) and second bent axle connecting rod (2) are close to mutually, inner circle (9) rotate to be connected in the circumferential surface of driven shaft (5), two holder (8) rotate to be connected in the circumferential surface of inner circle (9), and is a plurality of roller (10) rotate to be connected between the tip that two holders (8) are close to mutually, outer lane (11) rotate to be connected in the circumferential surface of a plurality of roller (10).
3. A crankshaft connecting rod device according to claim 2, characterized in that: the circumferential surfaces of the two outer rings (11) are fixedly connected with check rings (12).
4. A crankshaft connecting rod device according to claim 3, characterized in that: two the circumferential surface of driven rotating shaft (5) all rotates and is connected with sealed dish (13), and sealed dish (13) are located the downside of outer lane (11).
5. A crankshaft connecting rod device according to claim 4, characterized in that: the circumferential surface of the driving rotating shaft (4) positioned at the lower side is rotatably connected with a driving worm disc (6), and the driving worm disc (6) is positioned at the lower side of the third crankshaft connecting rod (3).
6. A crankshaft connecting rod device according to claim 5, characterized in that: the circumferential surface of the driving rotating shaft (4) positioned at the lower side is rotatably connected with a lower bearing (7), and the lower bearing (7) is positioned at the lower side of the driving worm disc (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121373982.0U CN215409741U (en) | 2021-06-21 | 2021-06-21 | Crankshaft connecting rod device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121373982.0U CN215409741U (en) | 2021-06-21 | 2021-06-21 | Crankshaft connecting rod device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215409741U true CN215409741U (en) | 2022-01-04 |
Family
ID=79640509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121373982.0U Expired - Fee Related CN215409741U (en) | 2021-06-21 | 2021-06-21 | Crankshaft connecting rod device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215409741U (en) |
-
2021
- 2021-06-21 CN CN202121373982.0U patent/CN215409741U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220104 |